US2166388A - Machine for combining bags and cartons - Google Patents

Description

July 18, ,1939. R. M. BERGSTEIN MACHINE -FOR CMBINING BAGS AND CARTONS Filed Deo. 20, 1937 4 Sheets-Shet 1 mgm" ATTORNEYS.

lJuly v 18, 1939.

fR. M. BERGSTEIN MACHINE FOR GOMBINING BAGS AND CARTONS Filed Dec. 2Q, 1957 4 sheets-sheet 2 INVENTOR. Hoen? r Manns Bike-571ml.

ATTORNEYS.

July 18, 1939. AR. M BERGSTEIN l l y MACHINE FOR COMBINING BAGS AND CARTONS 0 t e nv h S S t e 9 h s 4 7 O 9 1... o, 2 c. e D d e l .1 F m l INVENTOR. Raaf/vrlfamfs Beware/N,

. frmme wenken-,v

ATTORNEYS.

July 18, 1939- R. M. BERGsrElN 2,166,388

' MACHINE FOR COMBINING BAGS AND cARToNs W I .Filed nec. zo, 1957 4 sheets-sheet@ 1 Eb. 12 'a INVENTOR. Raab-Rr 1Y0/ww: .Beware/N.

ATTORNEYS.

lBY

PatentedI Julyis, 1939 2.166,38: l MACHINE Fon comme. mos Ami oAaToNs l Reben Merrie aergstein, Cineman. ome, munor to Edna May Bergstein and Robert Morris Bergstein, Cincinnati, Ohio, as trustees Applieauei neee'mber zo, 1937, serial No. 130,750

zz chime.

myv copending application, Serial No. 92,706, filed July 27, 1936, and relates to that part of the mechanism disclosed insaid 'application which concerns the operation of applying a preformed bag, and more particularly one which has been freshly preformed, to a .carton blank, and thereupon forming the carton about the bag whilel adhesively securing the bag to the blank. I il) The machine of my invention deposits the preformed bag in predetermined position on the fiat carton blank, holds the bags in the place on the blank while the' mechanism folds the blank around the bag, joins .the glue seam of the carton, and applies pressure, accomplishing the double purpose of anixing the bag to the blank 'and securing the glue seam of the blank.

In this application I have added to the disclosure in my former application, Serial No.'

a 92,706, mechanism 'whereby the machine may be accommodated to locating the bags on the flat blanks in varying positions. I consider it an important feature of my machine that it provides a y as Fig. 2 is a central longitudinal section of 'the mechanism shown in Figure 1,.

Fig. 3 is a plan view in continuation ol' Figure l, showing the completion of the combined bag and carton. f

4o Fig. 4 is a central longitudinal section of the parts shown in Fig. 3.

Fig. ,5 isa plan view showing the preferred application of adhesive to the blank.

Fig. 6 is ,a pianview showing a bagv deposite 45. upon the cartonblank.

Fig. '1 is a plan view of the completed article.

Fig. 8 shows' a preferred form of bag broken away.

Fig. 9 is a perspective-view showing the com.

50 pleted article in the act of beingerected.

of the bag after contents have been insertedyinthe finished article. l

. (o1. 11s-36.01) This application is a continuation-impart of Figs. 12, 13 and 14 are detail side elevations showing devices for varying the position of the 4bag on the carton blank in connection with the mechanism ilrst illustrated.

Fig. 15 is a detail view of a suitable conveyor 5 for use with my machine. Y

Fig. 16 is -a detail section on the line IAG- I6 of Fig. 3.

Flg.1'1 is a detail section along the line I1-I1 of Fig. 2. l0

I have denoted generally at I, the frame parts of the preferredv embodiment of my invention, and at 2 the frame parts preferably connected thereto of a bag forming mechanism, or at least a mechanism over which bags" are fed, as -by l5 means of feed roll l, to which the bags III are suppliedin succession over a plate or conveyor Referring ne Figs. 5 to 11, the blank wmeh r have selected for illustrating my invention is 20 generally indicated at i, and the completed car-- ton at 6. This carton preferably has two-of its alternate pan/els scored centrally as at 1, and*v in forming the carton it is folded along the-lines 1 1, adhesive being applied to the glue flap 8. '25

'I'he adhesive to be applied to the'blank before the bag is deposited thereon will-preferably be in rectangular panels as illustrated at 9. The bag generally indicated at- I0 is deposited onI the blank so that vits lateral edges4 are substantially coincident with the score line 1-1, in this particular embodiment, so that when the carton is folded over on said line 1, with the adhesive applied as indicated, the bagwill be caused to adhere to all the walls of the carton. It will be understood that this is merely a preferred arrangement.

The bag which I prefer to employ is a hermetic type bag having an outer laminationl I Ila, and an inner lamination I I, the two laminations inw dependently secured together inloffset relation as at Ila and I2 respectively, the seam at I2 lbeing preferably a heat fused seam. 'I'he bag is' also preferably sealed by fusing together the one end thereoLas indicated at Il. In erecting the completed article of Fig. '1, the operator pushes in laterally from thev side resulting in` bringing the carton and the enclosed bag to the position illustrated in Fig.

When the carton has been entirely squared up as indicatedin Fig. 10, the bag will have assumed the position illustrated in said figure, and theref after the bottom naps lmay be closed in andadhesively secured together,` or interlocked or tucked depending on the type of carton. This lwillleave u initial conveyor.

the bag free of the flaps at the other end of the carton, but open for the reception of whatever is to be packed, whereupon the projecting edges ,may be brought together to form a fiat seal, as

indicated I4.

It will be understood that while my invention is particularly adapted for operations such as have now been described to form the article which has been described, that the machine is adapted for using different blanks and different bags, or pre-formed tubular liners which may or may not be closed at one end.

Referring now to Figure l, the blanks 5 are located in a suitable hopper I5, so that the topmost blank is engaged byl a feeding wheel I6, having asuitable rubber contact pad I1 for drawing the cartons one at a time from the supply. This wheel worksagainst a rubber faced under Wheel Ila. A series of conveyor chains I8, in this instance three in number, receive the cartons as they are withdrawn and feed them along.- In order to time the blanks abutment pins i9 are located in properly spaced relation along the conveyors. The preferred form of conveyor is made up as illustrated in Fig. 15, of links having rubber pads 2i secured thereto, and the pins also secured suitably to the said links.

I have illustrated generally at 22, a timed adhesive applying mechanism driven synchronously with the conveyors, which glue applying mechanism includes glue rolls 23, the pads of which are shaped to correspond with the desired areas of adhesive to be applied to the blank 5.

The plate upon which the bags are fed one at a time, is a slotted arrangement here illustrated al formed of three sections 24; secured by means of brackets 25 to the frame of the machine. At the far end of the plate on which the bags are deposited, is an abutment time stop 28, which regulates the position of the bag transverse the members 24. Another abutment 2l is mounted `on theopposite side of the members 24 and cooperates with the abutment 26 to assure a position of the bag transverse the machine.

'I'he conveyor chains pass underneath the slotted plate arrangement 24, but the pins I9 project -up through the slots thereof, with the result that as each carton passes along the pins engage the end of a deposited bag and push it along in time with the carton, and in proper position with relation to the carton, lengthwise of the feeding movement thereof, so that when the bag drops away from the slotted plate it will be deposited in correct position on the carton, the arrangement of the side guides or abutments 28 and 21 being such that they continue to engage the bag after it has left the support 24.

As the carton blank and bag leave the assembling device now described, the combined'articles come under the influence of belts or chains such as the ones forming the conveyor Il, which are traveling at the same rate as `the conveyors I 8, said conveyors Il tapering away from engagement as illustrated at Ila.

Referring now to Figs. 3 and 4, the right-hand ends -of which figures are the same as the left hand ends of Pigs. 1 and 2, this subsequent conveyor arrangement is illustrated. The upper conveyor is inthe form of a belt 23, preferably a chain type, such as is illustrated in Fig. 15, and 'drivenby sprockets 23. in synchronism with-the Suitable` mechanism may be provided to press this conveyor down on'top of 'the assembled carton and bag if desired.

Beneath the path of the assembled carton and bag is a conveyor or belt 30, locatedcentraliy of the travel of the assembled bag and carton as is the conveyor 28,.but this conveyor 30 extends clear to the end of the machine. It likewise will preferably be of the rubber padded chain type driven vby a' sprocket 3i and guided by sheaves 32 and 33. A rail 34 just below the level of the path of travel of the carton supports the upper reach ofr this conveyor. Since the conveyor 38 and the conveyor 28 are driven synchronously and at the same speed as the assembled bag and carton which are fed to. them, the result is that whatever may be the position in which the bag is deposited upon the carton, that position will be retained, as the assembled articles advance toward the carton folding and gluing mechanism. As.

the blanks leave the chain 28, they may be additionally moved along by the feed wheels 20a.

The adhesive applying mechanism which I have illustrated is the usual one employed in carton folding and gluing machines to-wit, a narrow glue wheel 35, which applies adhesive to the under side of the glue flap of the carton. As the cartons with the bags upon them advance from beneath the conveyor 28. they pass under the folding plates or swords 36. supported on posts 3T, and at this point I provide another median upper belt 38` which directly overlies the belt 30. This belt 38 is driven by a sprocket 38. and is guided so that it passes under a series of rollers 40, which press it down against the underlying bag and blank, holding it firmly against the underneath conveyor 38. again keeping the bag in its position on the carton blank. i

It should be noted that the operation of folding over the carton blank walls using the swords so called. is likely to disturb the position of the bags with reference to the carton blanks. which since the adhesive is still fresh may result in a distorted final article. The device oi' applying the belts 38 and 38 at this stage'to the bags from above. and to the carton blanks vfrom below. results in holding the predetermined position of the bags on the blanks during the initiation of the folding operation about the swords. After this folding has been sufficiently started. then the belt 38 moves out of engagement so as not to impede the closing of the carton blanks.

Twist belts 4| and 42 of familiar type are emnloyed to fold over the carton blank. along the lines of fold that I have described. and it should be particularly noted that during that portion of the operation thatthe panels of the carton that proiect beyond the bag are being folded up. the upper conveyor or belt 33. and the lower conveyor or belt 38 are holding the bag firmly in place. The end of the belt 38. where it starts on its return path is so located as just not to interfere with the panels of the carton being brought down into flat position over` the bag. The portions 4in and 42a of the twist belts 4I en d 42 com- I -plete the folding over and holding of the com f pleted article in its flattened condition. whereupon it passes under a wide pressure roller 43,

which presses the carton and the bag in flat position firmly together. The completed packages fall on a retarded belt 44 in overlapping relation and the belt 44 feeds them under another belt ,48. these parts 44 and 48 being of the type used in stacking cartons each overlying the other. thus preventing the adhesive iunctures from separating and making it possible to remove bundles of the-completed articles ready for placing in containers for shipment. l.

As noted, I have arrangedto provide for locating the bag in variouspositions on the blanks as they travel under the plates 24, of the'bag and carton blank assembling device. Several modes of accomplishing this are shown in Figs. 12, v13

and 14. In Fig. 12, instead of a pin I9 being used on the chains tofeed the blanks along and to pick up the bags on the supports 24 to move them along with the carton blanks, I employstops whichyI term chairs, which have a portion 4i, that abuts against the 'rear ends of the carton blanks, and upwardly projecting posts 41, spaced the desired distance from the forward or abutment'edges of the portions 46. 'Ihus the blanks in this construction will be fed along and the bags' deposited on the blanks with the rear edges of the bagsjslightly overlapping the rearward ends of the carton blanks. In Fig. 14 the opposite arrangement is shown in which there 'are stops on the chains in the form of inverted L shaped pieces 48, having their upwardly extending portions arranged to abut the ends of the carton blanks, and

the more elevated, and forward ends arranged.

1 to abut the bags, and thus deposit them on the carton blanks with the rear ends of the bags forwardly of the rear ends of the carton blanks. As shown in Fig. 13, I. may provide'two pins. 49 and 50, the rearmost one being high enough to engage the bags and the forward ones low enough to engage only the carton blanks.

It lwill also beunderstood that toadjust the lateral position of the bags on the assembling device, the side stop portionsmay be made ad- .justabla I may thus locate the bags in any desired position onA the carton blanks, within the limits required in such an apparatus, and I accomplish it very simply and very rapidly.

vIt will be evident, further, that I, may modify in detail the structural parts of my apparatus, without departing from the essentials of my invention. These essentials I express in the following claims, to which reference is made.

VHaving thus described my invention, what- I claim as new and desire to secure by Letters Patent is:

1. In a carton blank and liner assembling devicethe combination of a support, conveyor means for blanks moving beneath said support, and abutment means on the chains, said abutment means having portions traversing the said support aboveits supporting surface to engage liners deposited upon said support, and portions not traversing said support and engaging carton blanks to move them along beneath the support.

2. In a carton blank and liner assembling dei vice the combination of a support, conveyor blanks to move them along beneath the support,

means for blanks moving beneath said support, and abutment means on the chains, said abutment means having vportions traversing the said support above its supportingsurface to engage liners deposited upon said support, and, portions not traversing said support and engaging carton said support having lengthwise passages therein through which the traversing portions project.

3. In a carton blank and liner assembling device the combination of a support having passageways extending lengthwise thereof, meansl for delivering carton liner velements one at a time to saidsupport, a lateral abutment to locate said v liners in one direction on said support, conveyor means traveling beneath the said support and having means thereon to engage carton blanks, and means projecting upwardly through the passageways so as to traverse the said support arthem oil oi' the support and into a position `on the carton blanks determined' by the position of the upwardly projecting' means with relation to the means lengaging the carton blanks.

4. In a carton blank and liner assembling d evice the combination of .a support having passageways extending lengthwise thereof, means for delivering carton liner elements one at a time to said support, conveyor means traveling beneath the said support and having means thereon to engage carton blanks, and means projecting upwardly through the passageways so as to traverse the said support arranged to engage the liner elements and move them oif of the support and into a position on the carton blanks determined by the position of the upwardly projecting means with relation to the means engaging the Vcarton blanks.

5, In a carton blank and liner assembling device the combination of a support having passageways extending lengthwise thereof means for delivering carton liner elements one at a time to said supports, conveyor means travelling beneath the said support and having means thereon `to engage carton blanks, and means projecting to engage the blanks and the means projecting upwardly through the support being prearranged to determine the relative position of blank and liner.

, 6. In a machine for gluing and folding cartons,

means for delivering pre-formed liners for the cartons in timed relation to carton blank movement, means for supporting said liners from one side only, means for conveying the carton blanks and means on the conveyor to move the liners from the support and into superposition on the carton blanks.

7. In a machine for gluing and folding cartons,

means for delivering pre-formed liners for the i cartons in timed relation to carton blank movement, means for supporting said liners, means vfor conveyingthe carton blanks and means on (the conveyor to move the liners from the support `and into superposition on the carton blanks, and

means for depositing adhesive on the blanks prior to the deposit of the liners thereon.

8. In a machine for gluing and folding cartons, means for delivering tubular liners for the cartons in timed relation to carton blank movement, means forsupporting said liners, means for coriveying the carton blanks, mea'ns on the conveyor to move the liners from the support and into superposition on the carton, said means having a prearranged location with reference to blanks upon the conveyor, said liners being deposited on the carton blanks by gravity. I

9. In a machine of the character described, means for simultaneously conveying a flat carton blank and a flexible tubular structure posi- Y tioned thereon, means for initially guidingsaid lflexible tubular structure `to a position on the mined position on the surface of the carton blank while the walls of the blank, other than the walls on which the flexible tubular structure rests, are folded over into tubular form.

10. In a machine of the character described, means for simultaneously conveying a flat carton blank and a flexible tubular structure-positioned thereon, means for initially guiding said flexible tubular structure to a position on the carton blank parallel to and between two lines of fold in said carton blank, means thereafter to fold said blank on said lines of fold in the course of further motion, into tubular form about said flexible tubular structure, and means for retainlng the flexible tubular structure in predetermined position on the surface of the carton blank while the walls of the blank, other than the Walls on which the flexible tubular structure rests, are folded over into tubular form,'said means pressing against thefiexible tubular structure in cornbnation with cooperating means to press against the carton, to retain the predetermined relationship between said flexible tubular structure and carton. l

11. In a machine for assembling cartons with liners therein into flat folded condition, which comprises. means for feeding carton blanks, means for depositing liners thereon in a predetermined position on certain walls of said blanks, means travelling with the carton blanks for holding the deposited liners in said predetermined position, and means for folding over other walls of the carton to close the same about the Asaid liners, said means initiating the said folding while the said travelling means retain the said relative position of carton blank and liners'.

12. In a machine for' assemblnig cartons with -liners therein into fiat folded condition, whichl comprises means for feeding carton blanks, means for depositing liners thereon in a predetermined position, means travelling with the carton blanks for holding the deposited liners in said predetermined position and means for folding over walls of the carton to vclose the same about the said liners, said means initiating the said folding while the said travelling means retain the said relative position of carton blank and liners, said folding means comprising elongated rigid members extending in the direction of the score lines on whichthe carton is to be folded, so as to define the line of fold, and means for folding the said carton walls about said last named members.

13. A machine for forming cartons of carton blanks comprising means for delivering preformed tubes and means for positioning said pre-.

formed tubes in predetermined positions on walls of said blanks prior to the forming of cartons of said blanks, and means for feeding said assembled blanks and tubes while positively retaining their relative position during a step of folding the blank to form the carton about the tube.

14. A machine for forming cartons of carton blanks comprising means for delivering a succession of preformed flat tubes and means for.

successively positioning said preformed tubes in predetermined positions onI walls of successive carton blanks prior to the forming of cartons of said blanks, said means including fixed guide members. and means for applying adhesive be- .tween both of the sides of the tubes andthe i walls of the carton blanks, and means for forming the cartons from saidblanks about said by i'lst folding. i,

15.A carton forming machine comprising means for moving a succession of carton blanks, means for moving a succession of preformed tubular liners in a direction of motion substantially at a right angle to the direction of motion of said carton blanks, and means forA depositing said liners in predetermined positions on said carton blanks, and means for folding over and securing a longitudinal `seam in said carton blanks subsequent to said deposit, and means for applying `adhesive between both of the sides of the tubular liners and the walls of the carton blanks.

16. In a machine for forming containers, in combination means for depositing a.succession of preformed flat tubular liners on a supporting element, means for subsequently removing them therefrom, means for causing a succession of fiat carton blanks to move under said supporting element in timed relation to the said removing means, and means whereby said blanks and liners are moved along thereafter in predetermined superposed relationship, and means for nat folding and securing said blanks about said liners, including means to secure opposite sides of said liners to opposite walls of. said carton blanks.

1'?. In a machine for forming containers, means for moving a succession of flat carton blanks, means for moving a succession of preformed tubular liners in a direction of motion at a right angle to the direction of motion of said carton blanks, means for depositing said liners on the carton blanks, means to cause adhesion between the under sidevof the tubular liners and the surfaces of the carton blanks on which they are deposited, means to fold over other walls of said blanks than those on which said liners are positioned, means to cause adhesion between the upper surface of said tubular liners and said other walls, and means to form the lengthwise seam of the carton thus closing it about the liner.

18. In .a machine for making knocked-down containers, means for positioning a succession of fiat tubular liners in the path of travel of a succession of nat carton blanks, means for depositing said liners in a predetermined superposed position on said blanks so that one surface of said liners overlies certain panels of said blanks, means to cause adhesion therebetween, means to fold over other panels of said blanks so that said other panels overlie opposite surfaces of said tubular liners, means to cause adhesion therebetween, and means to form the lengthwise seamof the carton thus closing it about the liner.

19. A machine for forming containers having in combination means for delivering a succession of preformed flat tubes, means for deliverving a succession of carton blanks, means for bringing the tubes and the carton blanks into superpod relation, means to bring the liners to a stopped position'and means thereafter for depositing the liners on the blanks and means for forming the cartons about the tubes, during amovement of the combined articles.

20.A machine for forming containers having in combination means for delivering a succession of preformed fiat tubes. means for delivering a succession of carton blanks, means for bringing the-tubes and'the'carton blanks into super-pom relation and means including means to assure accurate alignment therebetween for forming the cartons about the tubes, during a movement ofthe superpcled articles, said machine also v'u having means fory applying adhesive between both Laces of the tubes and the carton blanks.

21. In a machine for making knock-down oontainers, means -for 'moving carton blanks in a direction of motion at right angles to the direction .oi' motion from which liners 'are supplied to said blanks, and means to fold over and secure at least one seam in said carton Iin course of further motion,` means for supplying adhesive between said carton and liner, and pressure applying means to secure seam adhesion as well as adhesion between said liner and said blank.

22. In a right angle machine for combining one of said angl for moving cartons with liners thereon, means for depositing adhesive on at lleast one edge oi?v said cartonblank, means for depositig adhesive between the cartonv and liner,

'means for folding the carton blank longitudinally of the direction of motion on opposite parallel fold lines, and means for moving the folded carton with the liner within it, and pressure means to bring about adhesion between said seams of the carton and the walls of said liner and said folded carton. l v

ROBERT MORRIS BERGSTEIN.

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