EP0619260B1 - Method of making conical wound packages of filamentary material and wound packages thus obtained - Google Patents

Method of making conical wound packages of filamentary material and wound packages thus obtained Download PDF

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Publication number
EP0619260B1
EP0619260B1 EP94400745A EP94400745A EP0619260B1 EP 0619260 B1 EP0619260 B1 EP 0619260B1 EP 94400745 A EP94400745 A EP 94400745A EP 94400745 A EP94400745 A EP 94400745A EP 0619260 B1 EP0619260 B1 EP 0619260B1
Authority
EP
European Patent Office
Prior art keywords
speed
yarn
spindle
thread guide
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94400745A
Other languages
German (de)
French (fr)
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EP0619260A1 (en
Inventor
Timothy Johnson
Patrick Moireau
Günther Mager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Adfors SAS
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Vetrotex France SA
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Publication date
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Publication of EP0619260A1 publication Critical patent/EP0619260A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/10—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers
    • B65H54/103—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers forming frusto-conical packages or forming packages on frusto-conical bobbins, tubes, cores or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H55/00—Wound packages of filamentary material
    • B65H55/04—Wound packages of filamentary material characterised by method of winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/312—Fibreglass strands
    • B65H2701/3122—Fibreglass strands extruded from spinnerets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/92—Glass strand winding

Definitions

  • the present invention relates to the manufacture of wire windings of glass wound at constant speed, and in the form frustoconical windings.
  • Wire wraps are a common means of storage temporary said thread which may take different forms: thread simple with twist, twisted yarn, etc. They are later used to supplying thread to textile machines operating at high speed. The wire should then be able to be easily extracted from it, avoiding any friction which could cause a break. In this area, the windings frustoconical have a particular advantage over others forms of windings. Indeed the wire, dragged along the axis of the winding towards its smallest diameter therefore deviates immediately from the side of the coil as soon as a turn comes off. The risk that a turn is retained by an adjacent turn or that the wire come to rub on the side of the winding is very weak.
  • Some of the known solutions are intended to maintain substantially constant winding speed of the wire despite the variation continuous diameter of the support on which it is deposited. For this it is necessary to vary the speed of rotation of the support so that the wire constantly encounters a surface whose peripheral speed is substantially constant. The support being rotated by motor rollers this maintenance of the peripheral speed cannot be obtained only by alternating braking and rapid acceleration of said rollers.
  • Another difficulty is to avoid the pressure exerted by necessarily the motor rollers on the coil, does not damage the wire. That is all the more difficult to avoid when the wire is sensitive to the friction of by its very nature; this is particularly the case with glass strands.
  • rollers motors such as US-A-3,218,004.
  • This patent describes a process which makes it possible to produce a winding. frustoconical on a cylindrical support provided with a straight side to each of its ends. This result is achieved through a variation concomitant with the speed of the thread guide and the speed of rotation of the pin carrying the support.
  • the variation of the spindle speed is caused by the variation of the engine torque, itself caused by the variation of the thread tension during its winding.
  • This process has a certain inertia and is only applicable to wires whose mechanical behavior allows them to absorb variations in tension, such as metal wire, but it is not applicable to wire which do not have this capacity to absorb such variations in tension like glass threads.
  • the present invention relates to a method for obtaining directly, from a die from which glass filaments are drawn continuous gathered in the form of a wire, a frustoconical winding of said wire.
  • the subject of the present invention is in particular a process which allows to directly obtain a frustoconical winding, that the support on which the wire is wound either cylindrical or frustoconical.
  • the objects of the invention are achieved by a method according to which, continuous glass filaments are drawn mechanically from of a multiplicity of molten glass streams flowing from the orifices of a die, then are coated with a size and gathered in a thread which is driven by a stretching device, and which consists, downstream of this device, passing said thread to the end of the arm of a dancer roller and then wind on a support fixed by one of its ends to a spindle rotated and to distribute the quantity of thread deposited on said support using a thread guide moving in a movement back and forth parallel to the axis of said support so as to obtain a frustoconical winding over at least part of its height, in assigning a constant value to the speed of rotation of the device drawing, by programming the speed of movement of the thread guide and the length of its path, by continuously measuring the difference between the speed constant wire drawing and its winding speed thanks to the movement of the dancer roller arm and by controlling the speed of spindle rotation away so measured so that for each path of the thread guide
  • the spindle speed can be controlled or controlled in different ways. Thus, it can be slaved in real time to movement of the arm carrying the dancer roller using a regulator PID action, connected to the motor of said spindle via a frequency converter.
  • It can also be controlled by the movement of the arm carrying the roller dancer using a PID action regulator whose parameters regulation are programmed by a PLC, said regulator being connected to the spindle motor via a frequency converter.
  • roller arm dancer whose signal is transmitted to an automaton which, after conversion and calculation according to the programmed parameters, in turn transmits information to the frequency converter connected to the spindle motor.
  • the rotational speed of the spindle can be controlled, via a dimmer frequency, by a programmed automaton, said command being corrected after comparison with the signals transmitted to the automaton by the arm of the pebble dancer when depositing layers n-1; n-2 ... n-p.
  • the speed of movement of the wire guide for depositing each layer of wire can vary between at least two extreme values from the start to the end of the winding operation.
  • the speed of the wire guide can vary for example between two extreme values v 1 and v 2 for each layer deposited from the start of the winding operation to a predetermined layer ⁇ n ⁇ .
  • the speed of the thread guide can remain constant between its cusp points.
  • the variation of the speed of the thread guide and the concomitant variation of the spindle speed thus makes it possible to vary the length of wire deposited on any portion of the surface of winding, considered during at least part of the operation of winding and between two parallel planes one centimeter apart and perpendicular to the axis of said winding, for the whole or for part of the layers of wire, according to the frustoconical shape desired for the final winding.
  • the length of wire deposited on the portion of surface defined above will be called ⁇ length of wire by centimeter ⁇ in the following description.
  • the frustoconical shape being able be generated by the only programmable parameters of the operation of winding, the wire can be wound on a cylindrical support as well as on a frustoconical support.
  • This support can include one of its ends a straight flank or a tapered flank. The process according to the invention therefore makes it possible, directly from a die, to produce different frustoconical windings of glass wire.
  • the speed of the wire guide can remain constant between its cusps from start to finish the winding operation.
  • the wire is wound on a support tapered.
  • a frustoconical winding by depositing superimposed layers of a wire on a cylindrical support, formed of internal layers deposited at the beginning of the winding operation in which the length of wire deposited by centimeter varies from the top to the base of the winding and layers external with a constant length of deposited wire.
  • the height of the layers of wire whose frustoconical winding is formed can gradually decrease from the first layers deposited on the support up to the layer forming the periphery of said winding.
  • a frustoconical winding can be obtained by depositing superimposed layers whose height gradually decreases from the first layers deposited on the chosen support winding up to the layer forming the periphery of the winding.
  • the speed of the wire guide varies or remains constant between the cusps of said thread guide.
  • This installation comprises a die 21, shown schematically, which is normally connected to a power source glass.
  • This source can be the fore-body an oven that distributes the molten glass to several similar channels to the die 21, fed by simple gravity.
  • Pathway 21 can be supplied from cold glass, obtained and stored in the form of beads in a hopper arranged above the die.
  • the die 21 is generally made of platinum-rhodium alloy and heated by joule effect. This process allows the glass to be remelted or kept at a temperature sufficient for a viscosity suitable for drawing it in the form of continuous filaments.
  • the molten glass flows out of a multiplicity of orifices, such as nipples 22, and immediately stretched in a multiplicity of filaments 23, gathered here in a single sheet 24.
  • the filaments thus obtained have an average diameter generally understood between 5 ⁇ m and 14 ⁇ m.
  • This sheet 24 comes into contact with the device shown diagrammatically at 25, so that each filament 23 is coated with a size.
  • This device 25 is permanently supplied with a size taken from the passage through the filaments 23 which slide on its surface.
  • the type of size deposited is preferably made up essentially of a mixture of organic products. This avoids the inherent drying operation to the use of sizing in aqueous phase and the disadvantages which result.
  • the installation will include a device to eliminate the most of the size water deposited on the wire before it is wound. Such a device is described for example in the patent application filed in FRANCE on December 11, 1992 under number 92.14910.
  • the ply 24 converges towards the assembly device 26 where the different filaments are brought together to give birth to thread 27.
  • This device can consist of a simple grooved pulley or a plate provided with a notch.
  • the wire 27, after passing over a member of guide 28 such as for example a pulley with groove, is driven at speed constant by the device 29. This speed is generally equal or greater than 10 meters per second.
  • This device illustrated schematically in Figure 3a, consists a drawing wheel 30, driven by a motor not shown, which forms capstan and a separator roller 31 freely rotating around its axis.
  • the wire 27 then passes through the groove of a dancer roller 32 freely rotating about its axis fixed at the end of an arm 33.
  • a device such as a spring 35, makes it possible to imposing a predetermined tension on the wire 27.
  • the arm 33 pivots about its axis. This movement is immediately recorded by the device 36.
  • the wire 27 is then wound using a wire guide such as the pulley 37.
  • the pulley 37 moved back and forth and moving initially between the two positions p 1 and p 2 , distributes the wire on a barrel 38 provided at its base with a straight flank 39. This support is fixed to a spindle 40 driven in rotation by a motor 41.
  • An automaton imposes a speed on the motor of the stretching wheel 30 constant, a condition that must be met to obtain filaments 23 of constant diameter and therefore a wire 27 of constant titer.
  • the automaton also imposes on wire guide 37 the speed or speeds of displacement which must be respected during the whole operation of winding to obtain a winding of a determined structure, as well than the length of its stroke.
  • the programming of the latter characteristic allows, for example, to progressively reduce the stroke of the thread guide at the start of the winding operation in order to obtain the conical shoulder as shown in Figures 1 and 2.
  • this programming also allows you to change the stroke of the thread guide so to deposit the last turns of each layer at a slightly level lower than that reached by the last turns of the previous layer. it is thus possible to prevent an undesirable accumulation of turns shape in the end-of-travel area of the thread guide.
  • the winding With a support provided of a frustoconical flank the winding can be formed only of layers with a constant length of wire per centimeter of a end of the winding to the other.
  • the displacement or more exactly the rotation of the arm 33 of the roller dancer around his axis, caused by the appearance of a gap between the drawing speed and wire winding speed, is transformed into signal electric by a potentiometer (device 36).
  • This signal is transmitted to a proportional and integral proportional action regulator.
  • the parameters of this regulator can be set by potentiometers or programmed by the automaton.
  • the signal processed by the regulator is transmitted to a frequency converter which controls the motor 41 of spindle 40.
  • the rotation of the arm 33 of the dancer roller can also be recorded by an encoder placed on its axis in place of the previous potentiometer.
  • the encoder signal is transmitted to the automaton. After calculation according to the programmed parameters, the information is transmitted to the frequency converter which controls consequently the motor 41.
  • the previous regulation is a reactive regulation in real time depending on the movement of the dancer roller. With a more complex programming, it can be of the digital-predictive type with analog corrections.
  • the automaton after calculation according to parameters programmable, transmits information to the drive which controls the motor 41. Any rotation of the dancer roller arm is then recorded by the encoder fixed on its axis. The signal provided by the encoder is transmitted to the PLC. The controller after calculation and correction transmits a information modified to the drive, etc ...
  • FIGS 1 and 2 schematically illustrate two examples glass wire windings obtained according to the invention.
  • each layer deposited since the start of the winding operation exhibits a very significant variation in the length of wire deposited by centimeter from the top of the coil to its base. That is symbolized, in zone 13, by a series of layers whose thickness strongly increases from the top of the cylindrical barrel 11 to right flank 12. This type of deposit is made until the shape is obtained frustoconical desired for the final winding.
  • the following layers can then have a length of deposited wire per centimeter constant over their entire height. This is symbolized by layers 14 of constant thickness. In reality the thickness of these layers is not rigorously constant from the start to the end of the winding operation. We can observe a very slight difference in the taper of the winding due at its magnification. Winding 10 also has a shoulder conical.
  • FIG. 2 illustrates another type of winding 16 produced on a bole frustoconical 17 provided with a frustoconical flank 18.
  • the layers deposited include a length of deposited wire per centimeter that remains constant over their entire height. This is symbolized by 19 layers of constant thickness.
  • This winding also has a frustoconical shoulder 20.
  • the table in the appendix gives, as examples, the characteristics and the manufacturing parameters of two kinds of windings frustoconical shaped according to the invention. These windings were obtained from a 68 tex thread, formed from 408 glass filaments, of a diameter average of 9 micrometers, stretched to 2220 meters per minute.
  • the size deposited on these filaments has the following composition, expressed in weight percentages: ⁇ isobutyl stearate 4.25% ⁇ silicone acrylate (sold under the reference Ebecryl 1360 by the company Union Chimique Belge) 14.25% ⁇ carbonate diacrylate (marketed under the reference Acticryl CL 993 by the company Harcros) 14.25% ⁇ N-vinyl pyrrolidone 33.25% ⁇ ethoxylated trimethylolpropanetriacrylate (sold under the reference SR454 by the company Cray Vallée) 19.00% ⁇ 1-hydroxycyclohexyl phenylketone (sold under the reference Irgacure 184 by the company Ciba-Geigy) 10.00% ⁇ ethoxylated trimethoxysilane (sold under the reference Silane Y 5889 by the company Union Carbide) 5.00%
  • the winding n ° 1 was carried out on a cylindrical barrel provided with a straight side; winding n ° 2 on a frustoconical barrel also provided with a straight flank. These two windings have a conical top.
  • WINDING # 1 # 2 Cops diameter (mm) ⁇ initial high 90 98 ⁇ initial low 90 118 ⁇ final high 150 188 ⁇ final low 170 196

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Winding Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

La présente invention concerne la fabrication d'enroulements de fil de verre bobiné à vitesse constante, et se présentant sous forme d'enroulements tronconiques.The present invention relates to the manufacture of wire windings of glass wound at constant speed, and in the form frustoconical windings.

Les enroulements de fil sont un moyen courant de stockage temporaire dudit fil susceptible de se présenter sous différentes formes : fil simple comportant une torsion, fils retors, etc. Ils servent ultérieurement à alimenter en fil des machines textiles opérant à grande vitesse. Le fil doit alors pouvoir en être extrait facilement en évitant tout frottement qui pourrait engendrer une rupture. Dans ce domaine, les enroulements tronconiques présentent un avantage particulier par rapport aux autres formes d'enroulements. En effet le fil, entraíné le long de l'axe de l'enroulement en direction de son diamètre le plus faible, s'écarte de ce fait immédiatement du flanc de la bobine dès qu'une spire s'en détache. Le risque qu'une spire soit retenue par une spire adjacente ou que le fil vienne frotter sur le flanc de l'enroulement est très faible.Wire wraps are a common means of storage temporary said thread which may take different forms: thread simple with twist, twisted yarn, etc. They are later used to supplying thread to textile machines operating at high speed. The wire should then be able to be easily extracted from it, avoiding any friction which could cause a break. In this area, the windings frustoconical have a particular advantage over others forms of windings. Indeed the wire, dragged along the axis of the winding towards its smallest diameter therefore deviates immediately from the side of the coil as soon as a turn comes off. The risk that a turn is retained by an adjacent turn or that the wire come to rub on the side of the winding is very weak.

Un grand nombre de solutions ont été proposées pour obtenir de tels enroulements. Ceux-là peuvent être notamment réalisés en bobinant le fil à l'aide d'un guide-fil se déplaçant selon un mouvement de va-et-vient, parallèlement à l'axe d'un support tronconique, ce dernier étant mis en rotation grâce à des rouleaux moteurs venant s'appliquer initialement sur lui puis sur les couches de fil déposées.A large number of solutions have been proposed to obtain such windings. These can be achieved in particular by winding the wire using a wire guide moving in a back and forth movement, parallel to the axis of a frustoconical support, the latter being placed in rotation thanks to motor rollers coming to apply initially on him then on the layers of wire deposited.

Certaines des solutions connues ont pour objet de maintenir sensiblement constante la vitesse de bobinage du fil malgré la variation continue de diamètre du support sur lequel il est déposé. Pour cela il est nécessaire de faire varier la vitesse de rotation du support de manière que le fil rencontre en permanence une surface dont la vitesse périphérique est sensiblement constante. Le support étant mis en rotation par des rouleaux moteurs ce maintien de la vitesse périphérique ne peut être obtenu que par l'alternance de freinages et d'accélérations rapides desdits rouleaux.Some of the known solutions are intended to maintain substantially constant winding speed of the wire despite the variation continuous diameter of the support on which it is deposited. For this it is necessary to vary the speed of rotation of the support so that the wire constantly encounters a surface whose peripheral speed is substantially constant. The support being rotated by motor rollers this maintenance of the peripheral speed cannot be obtained only by alternating braking and rapid acceleration of said rollers.

Une série de solutions pour mettre en oeuvre un tel procédé sont décrites en tant qu'art antérieur dans la demande EP-A-0 343 540, qui propose elle-même une solution particulière.A series of solutions for implementing such a method are described as prior art in EP-A-0 343 540, which itself offers a particular solution.

Les difficultés qui doivent être surmontées pour mettre en oeuvre un tel procédé sont nombreuses et loin d'être négligeables. Parmi celles-ci, l'accélération et le freinage des rouleaux moteurs qui doivent être parfaitement contrôlés sous peine de provoquer un glissement entre les deux surfaces en contact. Ce risque limite la vitesse à laquelle le fil peut être bobiné; le document précité donne un exemple selon lequel la vitesse du fil est de 140m.min-1.The difficulties which must be overcome to implement such a method are numerous and far from negligible. Among these, the acceleration and braking of the drive rollers which must be perfectly controlled under penalty of causing a slip between the two surfaces in contact. This risk limits the speed at which the wire can be wound; the aforementioned document gives an example according to which the wire speed is 140m.min -1 .

Une autre difficulté est d'éviter que la pression, qu'exercent nécessairement les rouleaux moteurs sur la bobine, n'abíme le fil. Cela est d'autant plus difficile à éviter lorsque le fil est sensible au frottement de par sa nature même ; c'est en particulier le cas des fils de verre.Another difficulty is to avoid the pressure exerted by necessarily the motor rollers on the coil, does not damage the wire. That is all the more difficult to avoid when the wire is sensitive to the friction of by its very nature; this is particularly the case with glass strands.

Il faut également remarquer qu'il n'est pas possible de bobiner un fil à l'aide de rouleaux moteurs sur un support muni d'un flanc à l'une de ses extrémités.It should also be noted that it is not possible to wind a wire using motor rollers on a support provided with a sidewall at one of its ends.

D'autres solutions permettent d'éviter l'utilisation de rouleaux moteurs, comme par exemple le brevet US-A-3 218 004.Other solutions avoid the use of rollers motors, such as US-A-3,218,004.

Ce brevet décrit un procédé qui permet de réaliser un enroulement tronconique sur un support cylindrique muni d'un flanc droit à chacune de ses extrémités. Ce résultat est atteint grâce à une variation concomitante de la vitesse du guide-fil et de la vitesse de rotation de la broche portant le support. La variation de la vitesse de la broche est provoquée par la variation du couple moteur, elle-même causée par la variation de la tension du fil au cours de son bobinage.This patent describes a process which makes it possible to produce a winding. frustoconical on a cylindrical support provided with a straight side to each of its ends. This result is achieved through a variation concomitant with the speed of the thread guide and the speed of rotation of the pin carrying the support. The variation of the spindle speed is caused by the variation of the engine torque, itself caused by the variation of the thread tension during its winding.

Ce procédé présente une certaine inertie et n'est applicable qu'à des fils dont le comportement mécanique permet d'absorber les variations de tension, tels que des fils métalliques, mais il n'est pas applicable à des fils qui ne présentent pas cette capacité d'absorber de telles variations de tension comme les fils de verre.This process has a certain inertia and is only applicable to wires whose mechanical behavior allows them to absorb variations in tension, such as metal wire, but it is not applicable to wire which do not have this capacity to absorb such variations in tension like glass threads.

la présente invention a pour objet un procédé permettant d'obtenir directement, à partir d'une filière d'où sont étirés des filaments de verre continus rassemblés sous la forme d'un fil, un enroulement tronconique dudit fil.the present invention relates to a method for obtaining directly, from a die from which glass filaments are drawn continuous gathered in the form of a wire, a frustoconical winding of said wire.

La présente invention a notamment pour objet un procédé qui permet d'obtenir directement un enroulement tronconique, que le support sur lequel le fil est bobiné soit cylindrique ou tronconique.The subject of the present invention is in particular a process which allows to directly obtain a frustoconical winding, that the support on which the wire is wound either cylindrical or frustoconical.

Les buts de l'invention sont atteints grâce à un procédé d'après lequel, des filaments de verre continus sont étirés mécaniquement à partir d'une multiplicité de filets de verre fondu s'écoulant des orifices d'une filière, puis sont revêtus d'un ensimage et rassemblés en un fil qui est entraíné par un dispositif d'étirage, et qui consiste, en aval de ce dispositif, à faire passer ledit fil à l'extrémité du bras d'un galet danseur puis à le bobiner sur un support fixé par l'une de ses extrémités à une broche animée d'un mouvement de rotation et à répartir la quantité de fil déposée sur ledit support à l'aide d'un guide-fil se déplaçant selon un mouvement de va-et-vient parallèlement à l'axe dudit support de manière à obtenir un enroulement tronconique sur au moins une partie de sa hauteur, en attribuant une valeur constante à la vitesse de rotation du dispositif d'étirage, en programmant la vitesse de déplacement du guide-fil et la longueur de son trajet, en mesurant en permanence l'écart entre la vitesse d'étirage du fil qui est constante et sa vitesse de bobinage grâce au déplacement du bras du galet danseur et en asservissant la vitesse de rotation de la broche à l'écart ainsi mesuré de telle sorte que, pour chaque trajet du guide-fil, ladite vitesse varie entre deux valeurs extrêmes décroissant simultanément depuis le début jusqu'à la fin de l'opération de bobinage.The objects of the invention are achieved by a method according to which, continuous glass filaments are drawn mechanically from of a multiplicity of molten glass streams flowing from the orifices of a die, then are coated with a size and gathered in a thread which is driven by a stretching device, and which consists, downstream of this device, passing said thread to the end of the arm of a dancer roller and then wind on a support fixed by one of its ends to a spindle rotated and to distribute the quantity of thread deposited on said support using a thread guide moving in a movement back and forth parallel to the axis of said support so as to obtain a frustoconical winding over at least part of its height, in assigning a constant value to the speed of rotation of the device drawing, by programming the speed of movement of the thread guide and the length of its path, by continuously measuring the difference between the speed constant wire drawing and its winding speed thanks to the movement of the dancer roller arm and by controlling the speed of spindle rotation away so measured so that for each path of the thread guide, said speed varies between two extreme values decreasing simultaneously from the beginning to the end of the operation of winding.

La vitesse de rotation de la broche peut être asservie ou commandée de différentes manières. Ainsi, elle peut être asservie en temps réel au déplacement du bras portant le galet danseur à l'aide d'un régulateur à action PID, relié au moteur de ladite broche par l'intermédiaire d'un variateur de fréquence.The spindle speed can be controlled or controlled in different ways. Thus, it can be slaved in real time to movement of the arm carrying the dancer roller using a regulator PID action, connected to the motor of said spindle via a frequency converter.

Elle peut être aussi asservie au déplacement du bras portant le galet danseur à l'aide d'un régulateur à action PID dont les paramètres de régulation sont programmés par un automate, ledit régulateur étant relié au moteur de la broche par l'intermédiaire d'un variateur de fréquence.It can also be controlled by the movement of the arm carrying the roller dancer using a PID action regulator whose parameters regulation are programmed by a PLC, said regulator being connected to the spindle motor via a frequency converter.

Elle peut être également asservie au déplacement du bras du galet danseur dont le signal est transmis à un automate qui, après conversion et calcul en fonction des paramètres programmés, transmet à son tour une information au variateur de fréquence relié au moteur de la broche.It can also be controlled by the movement of the roller arm dancer whose signal is transmitted to an automaton which, after conversion and calculation according to the programmed parameters, in turn transmits information to the frequency converter connected to the spindle motor.

Pour le dépôt d'une couche déterminée 〈〈 n 〉〉, la vitesse de rotation de la broche peut être commandée, par l'intermédiaire d'un variateur de fréquence, par un automate programmé, ladite commande étant corrigée après comparaison avec les signaux transmis à l'automate par le bras du galet danseur lors du dépôt des couches n-1 ; n-2 ... n-p.For the deposition of a determined layer 〈〈 n 〉〉, the rotational speed of the spindle can be controlled, via a dimmer frequency, by a programmed automaton, said command being corrected after comparison with the signals transmitted to the automaton by the arm of the pebble dancer when depositing layers n-1; n-2 ... n-p.

Dans le procédé selon l'invention, la vitesse de déplacement du guide-fil pour le dépôt de chaque couche de fil peut varier entre au moins deux valeurs extrêmes depuis le début jusqu'à la fin de l'opération de bobinage. Ainsi la vitesse du guide-fil peut varier par exemple entre deux valeurs extrêmes v1 et v2 pour chaque couche déposée depuis le début de l'opération de bobinage jusqu'à une couche 〈〈 n 〉〉 prédéterminée. Pour les couches n+1 ; n+2, ... jusqu'à la fin de l'opération de bobinage la vitesse du guide-fil peut demeurer constante entre ses points de rebroussement.In the method according to the invention, the speed of movement of the wire guide for depositing each layer of wire can vary between at least two extreme values from the start to the end of the winding operation. Thus the speed of the wire guide can vary for example between two extreme values v 1 and v 2 for each layer deposited from the start of the winding operation to a predetermined layer 〈〈 n 〉〉. For layers n + 1; n + 2, ... until the end of the winding operation the speed of the thread guide can remain constant between its cusp points.

La variation de la vitesse du guide-fil et la variation concomitante de la vitesse de rotation de la broche permettent ainsi de faire varier la longueur de fil déposée sur une portion quelconque de la surface de l'enroulement, considérée pendant au moins une partie de l'opération de bobinage et comprise entre deux plans parallèles distants d'un centimètre et perpendiculaires à l'axe dudit enroulement, pour l'ensemble ou pour une partie des couches de fil, selon la forme tronconique désirée pour l'enroulement final. Par commodité, la longueur de fil déposée sur la portion de surface définie ci-dessus sera appelée 〈〈 longueur de fil par centimètre 〉〉 dans la suite de la description. La forme tronconique pouvant être engendrée par les seuls paramètres programmables de l'opération de bobinage, le fil peut être aussi bien bobiné sur un support cylindrique que sur un support tronconique. Ce support peut comprendre à l'une de ses extrémités un flanc droit ou un flanc de forme tronconique . Le procédé selon l'invention permet donc, directement à partir d'une filière, de réaliser différents enroulements tronconiques de fil de verre.The variation of the speed of the thread guide and the concomitant variation of the spindle speed thus makes it possible to vary the length of wire deposited on any portion of the surface of winding, considered during at least part of the operation of winding and between two parallel planes one centimeter apart and perpendicular to the axis of said winding, for the whole or for part of the layers of wire, according to the frustoconical shape desired for the final winding. For convenience, the length of wire deposited on the portion of surface defined above will be called 〈〈 length of wire by centimeter 〉〉 in the following description. The frustoconical shape being able be generated by the only programmable parameters of the operation of winding, the wire can be wound on a cylindrical support as well as on a frustoconical support. This support can include one of its ends a straight flank or a tapered flank. The process according to the invention therefore makes it possible, directly from a die, to produce different frustoconical windings of glass wire.

Ainsi selon l'invention, la vitesse du guide-fil peut demeurer constante entre ses points de rebroussement du début à la fin de l'opération de bobinage. Dans ce cas le fil est bobiné sur un support tronconique.Thus according to the invention, the speed of the wire guide can remain constant between its cusps from start to finish the winding operation. In this case the wire is wound on a support tapered.

Selon l'invention, il est également possible de réaliser un enroulement tronconique par dépôt de couches superposées d'un fil sur un support cylindrique, formé de couches internes déposées au début de l'opération de bobinage dans lesquelles la longueur de fil déposée par centimètre varie du sommet à la base de l'enroulement et de couches externes présentant une longueur de fil déposé constante.According to the invention, it is also possible to produce a frustoconical winding by depositing superimposed layers of a wire on a cylindrical support, formed of internal layers deposited at the beginning of the winding operation in which the length of wire deposited by centimeter varies from the top to the base of the winding and layers external with a constant length of deposited wire.

La hauteur des couches de fil dont l'enroulement tronconique est formé peut décroítre progressivement depuis les premières couches déposées sur le support jusqu'à la couche formant la périphérie dudit enroulement.The height of the layers of wire whose frustoconical winding is formed can gradually decrease from the first layers deposited on the support up to the layer forming the periphery of said winding.

Ainsi un enroulement tronconique peut être obtenu par dépôt de couches superposées dont la hauteur décroít progressivement depuis les premières couches déposées sur l'enroulement support choisi jusqu'à la couche formant la périphérie de l'enroulement. Selon que le support choisi est cylindrique ou tronconique, la vitesse du guide-fil varie ou demeure constante entre les points de rebroussement dudit guide-fil.Thus a frustoconical winding can be obtained by depositing superimposed layers whose height gradually decreases from the first layers deposited on the chosen support winding up to the layer forming the periphery of the winding. Depending on the medium chosen is cylindrical or tapered, the speed of the wire guide varies or remains constant between the cusps of said thread guide.

L'invention sera mieux appréciée grâce à la description détaillée ci-après, consacrée à quelques exemples de réalisation et illustrée par les figures suivantes :

  • Les figures 1 et 2 représentent schématiquement en coupe longitudinale la structure interne de deux enroulements différents réalisés selon l'invention,
  • La figure 3 représente une vue schématique d'une installation permettant la mise en oeuvre du procédé selon l'invention,
  • La figure 3a représente une vue schématique d'une partie de l'installation illustrée par la figure précédente,
  • La figure 4 représente le schéma de commande des dispositifs assurant le bobinage selon l'invention.
The invention will be better appreciated thanks to the detailed description below, devoted to a few exemplary embodiments and illustrated by the following figures:
  • FIGS. 1 and 2 schematically represent in longitudinal section the internal structure of two different windings produced according to the invention,
  • FIG. 3 represents a schematic view of an installation allowing the implementation of the method according to the invention,
  • FIG. 3a represents a schematic view of part of the installation illustrated by the preceding figure,
  • FIG. 4 represents the control diagram of the devices ensuring the winding according to the invention.

Le procédé selon l'invention peut être mis en oeuvre dans le cadre d'une installation telle qu'illustrée schématiquement figure 3.The method according to the invention can be implemented in the context of an installation as shown schematically in Figure 3.

Cette installation comprend une filière 21, représentée schématiquement, qui est normalement reliée à une source d'alimentation en verre. Cette source, non représentée sur la figure, peut être l'avant-corps d'un four qui distribue le verre fondu à plusieurs filières, semblables à la filière 21, alimentées par simple gravité. La filière 21 peut être alimentée à partir de verre froid, obtenu et stocké sous forme de billes dans une trémie disposée au-dessus de la filière.This installation comprises a die 21, shown schematically, which is normally connected to a power source glass. This source, not shown in the figure, can be the fore-body an oven that distributes the molten glass to several similar channels to the die 21, fed by simple gravity. Pathway 21 can be supplied from cold glass, obtained and stored in the form of beads in a hopper arranged above the die.

La filière 21 est généralement en alliage platine-rhodium et chauffée par effet joule. Cette filière permet de refondre le verre ou de le maintenir à une température suffisante pour une viscosité convenant à son étirage sous forme de filaments continus. Le verre fondu s'écoule d'une multiplicité d'orifices, tels que les tétons 22, et immédiatement étiré en une multiplicité de filaments 23, rassemblés ici en une seule nappe 24. Les filaments ainsi obtenus ont un diamètre moyen généralement compris entre 5 µm et 14 µm.The die 21 is generally made of platinum-rhodium alloy and heated by joule effect. This process allows the glass to be remelted or kept at a temperature sufficient for a viscosity suitable for drawing it in the form of continuous filaments. The molten glass flows out of a multiplicity of orifices, such as nipples 22, and immediately stretched in a multiplicity of filaments 23, gathered here in a single sheet 24. The filaments thus obtained have an average diameter generally understood between 5 µm and 14 µm.

Cette nappe 24 vient en contact avec le dispositif schématisé en 25, de manière que chaque filament 23 soit revêtu d'un ensimage. Ce dispositif 25 est alimenté en permanence avec un ensimage prélevé au passage par les filaments 23 qui glissent à sa surface. Le type d'ensimage déposé est constitué, de préférence, pour l'essentiel d'un mélange de produits organiques. Ceci permet d'éviter l'opération de séchage inhérente à l'emploi d'ensimage en phase aqueuse et les inconvénients qui en résultent. Toutefois, il est également possible d'utiliser un ensimage en phase aqueuse dans le cadre du procédé selon l'invention. Dans ce dernier cas, l'installation comprendra un dispositif permettant d'éliminer la majeure partie de l'eau de l'ensimage déposé sur le fil avant son bobinage. Un tel dispositif est décrit par exemple dans la demande de brevet déposée en FRANCE le 11 décembre 1992 sous le numéro 92.14910.This sheet 24 comes into contact with the device shown diagrammatically at 25, so that each filament 23 is coated with a size. This device 25 is permanently supplied with a size taken from the passage through the filaments 23 which slide on its surface. The type of size deposited is preferably made up essentially of a mixture of organic products. This avoids the inherent drying operation to the use of sizing in aqueous phase and the disadvantages which result. However, it is also possible to use a sizing in aqueous phase in the context of the process according to the invention. In this last case, the installation will include a device to eliminate the most of the size water deposited on the wire before it is wound. Such a device is described for example in the patent application filed in FRANCE on December 11, 1992 under number 92.14910.

La nappe 24 converge vers le dispositif d'assemblage 26 où les différents filaments sont réunis pour donner naissance au fil 27. Ce dispositif peut être constitué par une simple poulie à gorge ou d'une plaque munie d'une encoche. Le fil 27, après passage sur un organe de guidage 28 tel par exemple qu'une poulie à gorge, est entraíné à vitesse constante par le dispositif 29. Cette vitesse est généralement égale ou supérieure à 10 mètres par seconde.The ply 24 converges towards the assembly device 26 where the different filaments are brought together to give birth to thread 27. This device can consist of a simple grooved pulley or a plate provided with a notch. The wire 27, after passing over a member of guide 28 such as for example a pulley with groove, is driven at speed constant by the device 29. This speed is generally equal or greater than 10 meters per second.

Ce dispositif, illustré schématiquement figure 3a, est constitué d'une roue d'étirage 30, mue par un moteur non représenté, qui forme cabestan et d'un rouleau séparateur 31 tournant librement autour de son axe.This device, illustrated schematically in Figure 3a, consists a drawing wheel 30, driven by a motor not shown, which forms capstan and a separator roller 31 freely rotating around its axis.

Le fil 27 passe ensuite dans la gorge d'un galet danseur 32 tournant librement autour de son axe fixé à l'extrémité d'un bras 33. A l'autre extrémité 34 un dispositif, tel qu'un ressort 35, permet d'imposer au fil 27 une tension prédéterminée. Dès qu'il apparaít un écart entre la vitesse d'étirage de la roue 30 et la vitesse de bobinage du fil, le bras 33 pivote autour de son axe. Ce mouvement est immédiatement enregistré par le dispositif 36. Le fil 27 est ensuite bobiné à l'aide d'un guide-fil tel que la poulie 37. La poulie 37, animée d'un mouvement de va-et-vient et se déplaçant initialement entre les deux positions p1 et p2, répartit le fil sur un fût 38 muni à sa base d'un flanc droit 39. Ce support est fixé sur une broche 40 mue en rotation par un moteur 41.The wire 27 then passes through the groove of a dancer roller 32 freely rotating about its axis fixed at the end of an arm 33. At the other end 34 a device, such as a spring 35, makes it possible to imposing a predetermined tension on the wire 27. As soon as there appears a difference between the drawing speed of the wheel 30 and the wire winding speed, the arm 33 pivots about its axis. This movement is immediately recorded by the device 36. The wire 27 is then wound using a wire guide such as the pulley 37. The pulley 37, moved back and forth and moving initially between the two positions p 1 and p 2 , distributes the wire on a barrel 38 provided at its base with a straight flank 39. This support is fixed to a spindle 40 driven in rotation by a motor 41.

Le principe du circuit de régulation de cette installation est schématisé par le diagramme représenté figure 4. The principle of the regulation circuit of this installation is shown schematically in the diagram shown in Figure 4.

Un automate impose au moteur de la roue d'étirage 30 une vitesse constante, condition qui doit être satisfaite impérativement pour obtenir des filaments 23 de diamètre constant et donc un fil 27 de titre constant. L'automate impose également au guide-fil 37 la ou les vitesses de déplacement qui doivent être respectées pendant toute l'opération de bobinage pour obtenir un enroulement d'une structure déterminée, ainsi que la longueur de sa course. La programmation de cette dernière caractéristique permet, par exemple, de réduire progressivement la course du guide-fil au début de l'opération de bobinage afin d'obtenir l'épaulement conique tel que représenté sur les figures 1 et 2. Dans le cas d'un bobinage sur un support muni d'un flanc tronconique (figure 2), cette programmation permet également de modifier la course du guide-fil afin de déposer les dernières spires de chaque couche à un niveau légèrement inférieur à celui atteint par les dernières spires de la couche précédente.Il est ainsi possible d'éviter qu'une accumulation indésirable de spires se forme dans la zone de fin de course, du guide-fil. Avec un support muni d'un flanc tronconique l'enroulement peut être formé uniquement de couches présentant une longueur de fil par centimètre constante d'une extrémité de l'enroulement à l'autre.An automaton imposes a speed on the motor of the stretching wheel 30 constant, a condition that must be met to obtain filaments 23 of constant diameter and therefore a wire 27 of constant titer. The automaton also imposes on wire guide 37 the speed or speeds of displacement which must be respected during the whole operation of winding to obtain a winding of a determined structure, as well than the length of its stroke. The programming of the latter characteristic allows, for example, to progressively reduce the stroke of the thread guide at the start of the winding operation in order to obtain the conical shoulder as shown in Figures 1 and 2. In the case of a winding on a support provided with a frustoconical side (FIG. 2), this programming also allows you to change the stroke of the thread guide so to deposit the last turns of each layer at a slightly level lower than that reached by the last turns of the previous layer. it is thus possible to prevent an undesirable accumulation of turns shape in the end-of-travel area of the thread guide. With a support provided of a frustoconical flank the winding can be formed only of layers with a constant length of wire per centimeter of a end of the winding to the other.

Le déplacement ou plus exactement la rotation du bras 33 du galet danseur autour de son axe, provoquée par l'apparition d'un écart entre la vitesse d'étirage et la vitesse de bobinage du fil, est transformée en signal électrique par un potentiomètre (dispositif 36). Ce signal est transmis à un régulateur à action proportionnelle intégrale et dérivée. Les paramètres de ce régulateur peuvent être établis par des potentiomètres ou programmés par l'automate. Le signal traité par le régulateur est transmis à un variateur de fréquence qui commande le moteur 41 de la broche 40.The displacement or more exactly the rotation of the arm 33 of the roller dancer around his axis, caused by the appearance of a gap between the drawing speed and wire winding speed, is transformed into signal electric by a potentiometer (device 36). This signal is transmitted to a proportional and integral proportional action regulator. The parameters of this regulator can be set by potentiometers or programmed by the automaton. The signal processed by the regulator is transmitted to a frequency converter which controls the motor 41 of spindle 40.

La rotation du bras 33 du galet danseur peut être également enregistrée par un encodeur placé sur son axe en lieu et place du potentiomètre précédent. Le signal de l'encodeur est transmis à l'automate. Après calcul en fonction des paramètres programmés, l'information est transmise au variateur de fréquence qui commande en conséquence le moteur 41.The rotation of the arm 33 of the dancer roller can also be recorded by an encoder placed on its axis in place of the previous potentiometer. The encoder signal is transmitted to the automaton. After calculation according to the programmed parameters, the information is transmitted to the frequency converter which controls consequently the motor 41.

La régulation précédente est une régulation réactive en temps réel en fonction du déplacement du galet danseur. Moyennant une programmation plus complexe, elle peut être du type digital-prédictive avec corrections analogiques.The previous regulation is a reactive regulation in real time depending on the movement of the dancer roller. With a more complex programming, it can be of the digital-predictive type with analog corrections.

Ainsi l'automate, après calcul en fonction de paramètres programmables, transmet une information au variateur qui commande le moteur 41. Toute rotation du bras du galet danseur est alors enregistrée par l'encodeur fixé sur son axe. Le signal fourni par l'encodeur est transmis à l'automate. L'automate après calcul et correction transmet une information modifiée au variateur, etc...Thus the automaton, after calculation according to parameters programmable, transmits information to the drive which controls the motor 41. Any rotation of the dancer roller arm is then recorded by the encoder fixed on its axis. The signal provided by the encoder is transmitted to the PLC. The controller after calculation and correction transmits a information modified to the drive, etc ...

Les figures 1 et 2 illustrent schématiquement deux exemples d'enroulements de fil de verre obtenus selon l'invention.Figures 1 and 2 schematically illustrate two examples glass wire windings obtained according to the invention.

L'enroulement de la figure 1 présente la structure suivante : chacune des couches déposées depuis le début de l'opération de bobinage présente une variation très importante de la longueur de fil déposé par centimètre depuis le sommet de l'enroulement jusqu'à sa base. Cela est symbolisé, dans la zone 13, par une série de couches dont l'épaisseur augmente fortement depuis le sommet du fût cylindrique 11 jusqu'au flanc droit 12. Ce type de dépôt est réalisé jusqu'à l'obtention de la forme tronconique désirée pour l'enroulement final. Les couches suivantes peuvent alors présenter une longueur de fil déposé par centimètre constante sur toute leur hauteur. Cela est symbolisé par des couches 14 d'épaisseur constante. En réalité l'épaisseur de ces couches n'est pas rigoureusement constante du début à la fin de l'opération de bobinage. On peut observer une très légère différence de la conicité de l'enroulement due à son grossissement. L'enroulement 10 présente également un épaulement conique.The winding in Figure 1 has the following structure: each layer deposited since the start of the winding operation exhibits a very significant variation in the length of wire deposited by centimeter from the top of the coil to its base. That is symbolized, in zone 13, by a series of layers whose thickness strongly increases from the top of the cylindrical barrel 11 to right flank 12. This type of deposit is made until the shape is obtained frustoconical desired for the final winding. The following layers can then have a length of deposited wire per centimeter constant over their entire height. This is symbolized by layers 14 of constant thickness. In reality the thickness of these layers is not rigorously constant from the start to the end of the winding operation. We can observe a very slight difference in the taper of the winding due at its magnification. Winding 10 also has a shoulder conical.

La figure 2 illustre un autre type d'enroulement 16 réalisé sur un fût tronconique 17 muni d'un flanc tronconique 18. Les couches déposées comprennent une longueur de fil déposé par centimètre qui demeure constante sur toute leur hauteur. Cela est symbolisé par des couches 19 d'épaisseur constante. Cet enroulement présente également un épaulement tronconique 20.FIG. 2 illustrates another type of winding 16 produced on a bole frustoconical 17 provided with a frustoconical flank 18. The layers deposited include a length of deposited wire per centimeter that remains constant over their entire height. This is symbolized by 19 layers of constant thickness. This winding also has a frustoconical shoulder 20.

Le tableau en annexe donne à titre d'exemples, les caractéristiques et la paramètres de fabrication de deux sortes d'enroulements tronconiques réalisés selon l'invention. Ces enroulements ont été obtenus à partir d'un fil de 68 tex, formé de 408 filaments de verre, d'un diamètre moyen de 9 micromètres, étirés à 2220 mètres par minute.The table in the appendix gives, as examples, the characteristics and the manufacturing parameters of two kinds of windings frustoconical shaped according to the invention. These windings were obtained from a 68 tex thread, formed from 408 glass filaments, of a diameter average of 9 micrometers, stretched to 2220 meters per minute.

L'ensimage déposé sur ces filaments présente la composition suivante, exprimée en pourcentages pondéraux : ◆ stéarate d'isobutyle 4.25 % ◆ silicone acrylate (commercialisé sous la référence Ebecryl 1360 par la société Union Chimique Belge) 14.25 % ◆ carbonate diacrylate (commercialisé sous la référence Acticryl CL 993 par la société Harcros) 14.25 % ◆ N-vinyl pyrrolidone 33.25 % ◆ triméthylolpropanetriacrylate éthoxylé (commercialisé sous la référence SR454 par la société Cray Vallée) 19.00 % ◆ 1-hydroxycyclohexyl phénylcétone (commercialisé sous la référence Irgacure 184 par la société Ciba-Geigy) 10.00 % ◆ triméthoxysilane éthoxylé (commercialisé sous la référence Silane Y 5889 par la société Union Carbide) 5.00 % The size deposited on these filaments has the following composition, expressed in weight percentages: ◆ isobutyl stearate 4.25% ◆ silicone acrylate (sold under the reference Ebecryl 1360 by the company Union Chimique Belge) 14.25% ◆ carbonate diacrylate (marketed under the reference Acticryl CL 993 by the company Harcros) 14.25% ◆ N-vinyl pyrrolidone 33.25% ◆ ethoxylated trimethylolpropanetriacrylate (sold under the reference SR454 by the company Cray Vallée) 19.00% ◆ 1-hydroxycyclohexyl phenylketone (sold under the reference Irgacure 184 by the company Ciba-Geigy) 10.00% ◆ ethoxylated trimethoxysilane (sold under the reference Silane Y 5889 by the company Union Carbide) 5.00%

L'enroulement n° 1 a été réalisé sur un fût cylindrique muni d'un flanc droit ; l'enroulement n° 2 sur un fût tronconique également muni d'un flanc droit. Ces deux enroulements présentent un sommet conique. ENROULEMENT n° 1 n° 2 Diamètre cops (mm) ◆ initial haut 90 98 ◆ initial bas 90 118 ◆ final haut 150 188 ◆ final bas 170 196 Vitesse broche (tours.min-1) ◆ initiale haute 7852 7211 ◆ initiale basse 7852 5989 ◆ finale haute 4711 3759 ◆ finale basse 4157 3605 Vitesse guide-fil (m. min-1) ◆ monte, bas 6 5 ◆ monte, haut 8 5 ◆ baisse, haut -12 -10 ◆ baisse, bas -6 -10 Longueur de fil ( en m par cm) début de bobinage ◆ monte, bas 3.7 4.4 ◆ monte, haut 2.8 4.4 ◆ baisse, haut 1.9 2.2 ◆ baisse, bas 3.7 2.2 fin de bobinage ◆ monte, bas 3.7 4.4 ◆ monte, haut 2.8 4.4 ◆ baisse, haut 1.9 2.2 ◆ baisse, bas 3.7 2.2 Course du guide-fil (mm) ◆ début de bobinage 380 375 ◆ fin de bobinage 230 205 Angle enroulement (degrés) ◆ intérieur 0.0 1.5 ◆ extérieur 2.5 1.1 ◆ cône 11.3 14.8 Poids net (kg) 7.2 9.5 The winding n ° 1 was carried out on a cylindrical barrel provided with a straight side; winding n ° 2 on a frustoconical barrel also provided with a straight flank. These two windings have a conical top. WINDING # 1 # 2 Cops diameter (mm) ◆ initial high 90 98 ◆ initial low 90 118 ◆ final high 150 188 ◆ final low 170 196 Spindle speed (rev.min -1 ) ◆ high initial 7852 7211 ◆ low initial 7852 5989 ◆ high final 4711 3759 ◆ low final 4157 3605 Thread guide speed (m. Min -1 ) ◆ goes up, down 6 5 ◆ climbs, high 8 5 ◆ down, up -12 -10 ◆ down, down -6 -10 Wire length (in m per cm) start of winding ◆ goes up, down 3.7 4.4 ◆ climbs, high 2.8 4.4 ◆ down, up 1.9 2.2 ◆ down, down 3.7 2.2 end of winding ◆ goes up, down 3.7 4.4 ◆ climbs, high 2.8 4.4 ◆ down, up 1.9 2.2 ◆ down, down 3.7 2.2 Thread guide stroke (mm) ◆ start of winding 380 375 ◆ end of winding 230 205 Winding angle (degrees) ◆ interior 0.0 1.5 ◆ exterior 2.5 1.1 ◆ cone 11.3 14.8 Net weight (kg) 7.2 9.5

Claims (16)

  1. Method for manufacturing a roll of glass yarn according to which continuous glass filaments are drawn mechanically from a multiplicity of thin streams of molten glass flowing from the openings of a die, then are coated with a size and united into a yarn which is carried along by a drawing device, and which consists, downstream of this device, in passing the said yarn to the end of the arm of a compensating roller and then winding it on a support fixed by one of its ends to a spindle driven in a rotational movement, and distributing the quantity of yarn deposited on the said support by means of a thread guide moving in a reciprocating motion parallel to the axis thereof so as to obtain a frustoconical roll over at least a part of its height, while assigning a constant value to the rotation speed of the drawing device, programming the speed of movement of the thread guide and the length of its travel, continuously measuring the deviation between the speed at which the yarn is drawn, which is constant, and the speed at which it is wound, by means of the displacement of the arm of the compensating roller, and controlling the speed of rotation of the spindle according to the deviation thus measured, in such a way that, for each pass of the thread guide, the said speed varies between two extreme values, decreasing simultaneously from the start to the end of the winding operation.
  2. Method according to Claim 1, characterized in that the speed of rotation of the spindle is controlled, in real time, according to the displacement of the arm carrying the compensating roller by means of a regulator with PID action, connected to the motor of the said spindle by way of a frequency varying means.
  3. Method according to Claim 1, characterised in that the speed of rotation of the spindle is controlled according to the displacement of the arm carrying the compensating roller by means of a regulator with PID action, the regulating parameters of which are programmed by an automatic device, the said regulator being connected to the motor of the spindle by way of a frequency varying means.
  4. Method according to Claim 1, characterized in that the speed of rotation of the spindle is controlled according to the displacement of the arm of the compensating roller, the signal of which is transmitted to an automatic device which, after conversion and calculation in response to the programmed parameters, transmits information to the frequency varying means connected to the motor of the said spindle.
  5. Method according to Claim 1, characterized in that the speed of rotation of the spindle is controlled for the depositing of a layer "n", by way of a frequency varying means, by a programmed automatic device, the said control being corrected after comparison with the signals transmitted to the automatic device by the arm of the compensating roller during the depositing of the layers n-1, n-2, ...n-p.
  6. Method according to any one of Claims 1 to 5, characterized in that the yarn is carried along and wound at a linear speed at least equal to 10 metres per second.
  7. Method according to any one of the preceding claims, characterized in that the speed of movement of the thread guide, for the depositing of each layer, varies between at least two extreme values from the start to the end of the winding operation.
  8. Method according to any one of Claims 1 to 6, characterized in that the speed of movement of the thread guide, for each layer deposited at the start of the winding operation, varies between at least two extreme values, the said speed then remaining constant between the points of return of the said thread guide for the depositing of the following layers until the end of the winding operation.
  9. Method according to Claim 1 to 6, characterized in that the speed of movement of the thread guide is constant between the points of return of the said thread guide from the start to the end of the winding operation.
  10. Method according to one of Claims 1 to 6, characterized in that the length of the stroke of the thread guide decreases during at least a part of the duration of the winding operation.
  11. Method according to any one of Claims 1 to 6, characterized in that the layers of yarn are superposed on a cylindrical support.
  12. Method according to one of Claims 1 to 6, characterized in that the layers of yarn are superposed on a frustoconical support.
  13. Roll of glass yarn obtained according to the method defined by any one of the preceding claims, characterized in that it is formed of a yarn consisting of filaments having an average diameter of between 5 and 14 micrometres.
  14. Roll according to Claim 13, characterized in that it is formed of a yarn coated with a size constituted essentially by a mixture of organic products.
  15. Roll according to either of Claims 13 and 14, characterized in that it is wound on a cylindrical or frustoconical support.
  16. Roll according to Claim 15, characterized in that the support comprises a straight or frustoconical flank at one of its ends.
EP94400745A 1993-04-08 1994-04-06 Method of making conical wound packages of filamentary material and wound packages thus obtained Expired - Lifetime EP0619260B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304166 1993-04-08
FR9304166A FR2703671B1 (en) 1993-04-08 1993-04-08 METHOD FOR MANUFACTURING TAPERED WIRE COILS AND REELS THEREFROM.

Publications (2)

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EP0619260A1 EP0619260A1 (en) 1994-10-12
EP0619260B1 true EP0619260B1 (en) 1998-07-08

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EP94400745A Expired - Lifetime EP0619260B1 (en) 1993-04-08 1994-04-06 Method of making conical wound packages of filamentary material and wound packages thus obtained

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US (1) US5556045A (en)
EP (1) EP0619260B1 (en)
DE (1) DE69411429T2 (en)
FR (1) FR2703671B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010475A (en) * 2017-04-14 2017-08-04 山东阳谷电缆集团有限公司 A kind of close spooling equipment produced for cable and its winding displacement mend line method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858796C2 (en) 1998-12-18 2003-10-23 Lfk Gmbh Output device for data transmission lines and method for producing an output device
FR2796631B1 (en) * 1999-07-22 2001-08-17 Vetrotex France Sa PROCESS FOR THE MANUFACTURE OF TRONCONIC WIRE COILS
FR2809102B1 (en) * 2000-05-17 2003-03-21 Vetrotex France Sa SIZING COMPOSITION FOR GLASS WIRES, PROCESS USING THIS COMPOSITION AND RESULTING PRODUCTS
ES2200605A1 (en) * 2000-07-21 2004-03-01 Catingal S L High-capacity bobbin with a built-in ball control head and folding system
US6705008B1 (en) * 2000-09-29 2004-03-16 Reliance Electric Technologies, Llc System and method for sleeving a lead wire
WO2002074674A1 (en) * 2001-03-20 2002-09-26 Mariella Crotti Improved method for handling yarn intended for supplying circular hosiery and knitting machines
SI22124A (en) * 2006-12-07 2007-04-30 Danilo Jaksic Method of precise winding of textile yarn to cones by changing the winding ratio within one winding cycle several times
CN102992097A (en) * 2012-10-30 2013-03-27 南通恒新金属工艺科技有限公司 Steel wire take-up device
CN109629020A (en) * 2019-01-16 2019-04-16 河南光远新材料股份有限公司 A kind of boundling component of electric yarn wire-drawing equipment
CN112723011B (en) * 2020-12-29 2022-06-07 浙江理工大学 Large package tower type cone yarn and electronic forming method and device thereof

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240770A (en) * 1942-12-30 1946-01-31 Schaerer Maschf Device for the machine production of thread windings on disc bobbins.
CH238829A (en) * 1944-04-14 1945-08-31 Kusian Karl Spool for axial thread take-off.
US2593680A (en) * 1950-02-11 1952-04-22 Foster Machine Co Winding machine
US2764363A (en) * 1950-09-13 1956-09-25 Stammwitz Eugene Traverse mechanism for spinning, twisting and like frames
NL184740B (en) * 1953-12-31 Asahi Chemical Ind CATION-EXCHANGE MEMBRANE BASED ON A FLUORO-CARBON POLYMER AND THE PROCESS FOR MANUFACTURING THIS.
US3218004A (en) * 1962-09-25 1965-11-16 Anaconda Wire & Cable Co Coil forming apparatus
GB1038896A (en) * 1964-03-11 1966-08-10 British Nylon Spinners Ltd Improvements in or relating to the winding of yarn
DE1535051C3 (en) * 1964-12-09 1975-04-03 Zinser-Textilmaschinen Gmbh, 7333 Ebersbach Control device on spinning and twisting machines for controlling the stroke reversal of a ring or spindle rail
NL7116816A (en) * 1971-12-07 1973-06-12 Glass fibre yarn package - special build on conical tube
US3861609A (en) * 1971-12-08 1975-01-21 Owens Corning Fiberglass Corp Method of and apparatus for processing linear elements
US3971517A (en) * 1972-05-15 1976-07-27 Teijin Limited Apparatus for winding a yarn round a bobbin
US3847579A (en) * 1973-03-22 1974-11-12 Owens Corning Fiberglass Corp Method of and apparatus for processing linear elements
US4010908A (en) * 1974-07-29 1977-03-08 Owens-Corning Fiberglas Corporation Method and apparatus for handling linear elements
NL7511525A (en) * 1974-10-03 1976-04-06 Joy Mfg Co WRAPPING STEERING SYSTEM.
JPS57189971A (en) * 1981-05-19 1982-11-22 Shinetsu Densen Kk Method of and device for variable speed traverse
US4546880A (en) * 1983-06-02 1985-10-15 Ppg Industries, Inc. Shippable package of glass fiber strands and process for making the package and continuous strand mat
US4752043A (en) * 1985-11-04 1988-06-21 U.S. Holding Company, Inc. Method of and apparatus for winding a precision optical fiber coil
NL8600896A (en) * 1986-04-09 1987-11-02 Bekaert Sa Nv CONICAL WRAPPING OF WIRE ON A REEL.
US5054705A (en) * 1990-05-04 1991-10-08 Owens-Corning Fiberglas Corporation Reciprocating strand guide for split strand roving packages
GB9024396D0 (en) * 1990-11-09 1991-01-02 Jeftex Limited Thread package building

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010475A (en) * 2017-04-14 2017-08-04 山东阳谷电缆集团有限公司 A kind of close spooling equipment produced for cable and its winding displacement mend line method
CN107010475B (en) * 2017-04-14 2019-11-19 山东阳谷电缆集团有限公司 A kind of close spooling equipment and its winding displacement benefit line method for cable production

Also Published As

Publication number Publication date
US5556045A (en) 1996-09-17
FR2703671A1 (en) 1994-10-14
EP0619260A1 (en) 1994-10-12
DE69411429T2 (en) 1999-04-15
DE69411429D1 (en) 1998-08-13
FR2703671B1 (en) 1995-06-09

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