US2438034A - Thread tension arrangement in textile machines - Google Patents

Description

I 16, 1948. A. BRUGGEZR THREAD TENSION ARRANGEMENTS IN TEXTILE MACHINES Filed Feb. 18, 1947 Patented Mar. 16, 1948 UNITED STATES 2.43am 'rmmsn TENSION anamomsnxr in mm! memes Albert lsrlgser, lessen. Switserland Applieation'l ebnary is, im, Serial 80.129314 m Syitseriand amen e. 1m

3 Claims. (oi. sis-m) The invention relates to improvements in roving and thread tension arrangements in spinning and twisting machines of the continuous type,

comprising at least one thread-brake applying a braking action adjustable in accordance with a scale indicator.

A numerical setting of the thread tension or stretch in accordance with the. character of the thread material and, if desired, with the use envisaged for the thread. thus is made possible.

One embodiment of the inventive tension arrangement, comprising two thread brakes, is shown in the accompanying drawing.

Fig. 1 shows an elevation of the arrangement, a scale equipped setting disc being illustrated for the one thread-brake only,

Fig. 2 is a partial view corresponding to Fig. 1, the setting disc, however, being shown in a differentposltion,

Fig. 3 is a side elevation of Fig, 1, comprising in addition a setting disc provided for a thread brake,

Fig; 4 is a section on line IV-IV of Fig. 3 showing the setting disc in minimum tension position,

Fig. 5 is a similar section showing the setting disc in maximum tension position,

. In Figs. 1 and 3, I denotes a frame standard provided on its upright leg-2 with a set of vertically stacked brake fingers 8. Brake fingers 4 are associated in vertical arrangement with the said fingers 3, staggered by half a finger-pitch relative thereto and secured to the web of a strap or stirrup l which is pivoted, by its two Thus a finger brakejo: known type is formed, the running thread being threaded through the fingers thereof under a continuous change of direction or, respectively, in a circuitous path; strap s of the said thread brake being biased by a torsion spring I which tends to hold finger set 4 in the vertical plane of finger set 3. The upright leg 2 of frame standard I, which latter is fixedly secured to the respective thread-handling machine, carries on a lower extension a lateral arm I, on the free end of which a disc II is mounted by means of a cross-pin I. The rim 0! disc in is spiral-shaped and provided with a scale, and disc II is adlustable in its angular position on pin 9 by means of a nut ll. Two triction discs I2, is are mountedloosely on lateral arm 8. Friction disc l2 laterally abuts against a collar 14 secured to arm I, and friction disc i3 is pushed laterally against friction disc I! through the action oi a conespring ll mounted ll 1. lnatensionarrang' 2 on arm I. Spring II at its otherend abuts against a collar is which is axially displaceable on arm t. Collar it by means oi a projecting rim portion is biased by, spring it into engagement with the rim of setting disc Ill. Collar l6 representing. so to speak, a feeler ring, is provided with a mark (not visible in the drawing) in order to permit of accurately setting disc is with its scale relative th m The textile thread. which is intended it be processed or threaded on the respective machine,

passes, alter leaving the thread brake described, between the two friction discs l2, it. According to the angular position oi setting disc in and the '15 corresponding position of feeler ring is on arm l, spring" is tensed more or-less so that the thread is subiected in brake l2, it to a corresponding brake action. In Fig. 1. disc ill is shown setioramaximum. andinI'lgJioraminimum go brake action approximately, as may readily be seen. i

In order to permit oi numerically setting the tension oi a running thread also within the range or the thread brake, a lower cantilever I1 is pro- 25 vided on trams l as shown in Fig. 3. Cantilever l1 having a boss ll accommod tes a pivot is .on

which the disc 20 is mounted. The latter is provided with a spiral-shaped rim carrying a scale,

and is adiustable, with respect to its angle of ro- 80 tattoo, on pivot is by means of a wing nut II.

A ieeler pin 2! (Fig. 4), cooperates with the rim or setting disc II, and is secured to swing strap I carrying brake fingers l.

l 'eeler pin 22 is continuously pushed against arms or flanges, on a pin s mounted in frame I, 5 the rim of settin disc I! by the action of torsion spring I (Fig. l), biasing strap 5 so that, in accordance with the position of rotation of disc 20, finger set 4 is moved more or less toward the vertical plane of stationary finger set 3 or, eventually,

so is swung into the said plane, as will be readily seen from Figs. 4 and 5. Disc 20 is set in Fig. 5 for maximum, and in Fig. 4 for minimum brake action approximately.

The tension arrangement obviously also may Ibednventive tension arrangement also is so suited. aside from reducers, e. g., for winding irames, but also ior other thread-processing or What I claim and desire to secure by Letters Patent is: I

tior running thread in winding and other textile machines with at least one thread-brake, oi the character described, a thread-tension adjusting means adapted to subject the thread to a numerically predetermined tension, comprising a spiral-shaped pivoted disc provided with a circumferential scale, clamping means for adjusting the rotary position of the said disc, a ieeler collar mounted loose on the thread-brake pivot and provided with an index and adapted to engage the rim of the said disc, and a spring mounted between the thread-brake and the said collar for the purpose of pushing the latter into contact with the said disc and of subjecting the thread-brake to a braking action numerically corresponding to the setting of the disc relative to the said collar.

2. In a tension arrangement for running thread in winding and other textile machines with a thread-brake, of the character described, a thread-tension adjusting means adapted to subject the thread to a numerically predetermined tension, comprising a spiral-shaped pivoted disc provided with a circumferential scale, clamping means for adjusting the rotary position of the said disc, and a ieeler pin fixedly secured to the pivoted spring-loaded portion of the said threadbrake and abutting against the rim or the said disc, whereby the thread-brake, and thus the thread passing there-through, is subjected to a braking action numerically corresponding to the setting of the disc relative to the said pin.

3. In a tension arrangement for running thread in winding and other textile machines with a thread-brake and a thread-brake disposed independent of the latter. of the character described,

said disc.

ALBERT BRUGGER.

Images