US1721085A

US1721085A - Web perforating and folding mechanism

Info

Publication number: US1721085A
Application number: US199285A
Authority: US
Inventors: Novick Abraham
Original assignee: FL Smithe Machine Co Inc
Current assignee: FL Smithe Machine Co Inc
Priority date: 1927-06-16
Filing date: 1927-06-16
Publication date: 1929-07-16
Anticipated expiration: 1946-07-16

Description

July 16, 1929. NO VICK WEB PERFORATING AND FOLDING MECHANISM Filed June 16, 1927 s Sheets-Sheet July 16, 1929. A, NOVfCK 1 721, 85-

I WEB PERFORATING AND HOLDING MECHANISM Filed Juhe 16, 1927 s Sheets-Shet 2 I, I! I9 fig. 4.

A No meys July 16, 1929. ov c 1,721,085

WEB PERFORATING AND FOLDING MECHANISM Filed June 16, 1927 3 Sheets-Sheet 3 Inventor Patented July 16, 1929. i

llhll'l PATENT OFFICE.

ABRAHAM NOVICK, GE FLUSHING, NEW YORK, ASSIGNGR TO IE. L. SMITHE MACHINE 60., INC., 01-? NEW YORK, IN. 33., A CURPORA'IION OF NEW YORK.

W'EB PERFORATXNG- AND FOLDING MECHANISM.

Application filed June 16, 1927. Serial No. 199,285.

This invention relates to the formation of along a transverse line but in extended conpacks of folded material, and more particudition; and larly to means for forming packs from super- F 1g. 12 is a. View showing the plurality of imposed plies or webs of suitable material, superimposed plies with transverse lines of 5 such as paper, with flat folds so that each perforations but 111 extended conditi pack will be compact and of substantially the Referring to the drawings, it will be seen same thi k th -1 5, that mcarrymg out the invention according Th general bj t f th i ti i t to the 1llustrative embodiment of the packid means f f i h fl t cempact forming means, the material 15 in the form 10 packs, which means are effective in operation, of a web or a plurality of superimposed webs simple in structure and economical to manu- Oi pap r, for eXample, is fed downwardly bef t tween feed rolls 16 and 17 to and through per- A th bj t. f th i ti i t forating and folding mechanism by which vide pack-forming means in which a pluthe material is perforated first from one side 15 rality of superimposed plies of material are by a toothed blade 18 engaging the material perforated along transverse lines at suitable a that side and forcing it against a presser i t l d f ld d i fl t, f ld fi st member 19 on the opposite side, which serves i one di ti d th in th th r at as a platen or anvil, and the material is then cessive lines of perforation so as to lie flat gripped on opposite sides of the blade and 20 in the resulting pack. folded thereover by jaws 20 at opposite sides The invention will be understood from the of member 19, which aws also hold the foldfollowing description taken in connection ed material during the separation of the knife with the accompanying drawings in which and member and swing the material to one Fig. 1 is a top plan view of the main porside for pack-forming, and then areoperated tion of a machine embodying one form of the to release the material.

i ti x The same operation is then effected with Fig. 2 is a longitudinal sectional view in the arrangement ofv the blade and presser a plane perpendicular to the-plane of Fig. 1; member reversed and such operations are re- Fig. 3is adetail view illustrating two jaws peated alternately at opposite sides of the so and parts for operating the same; material to produce fiat folds, thereby facili- Fig. 4 is a sectional view illustrating the tating the cross-folding of the web and the position of certain parts as a blade and presser collection of the various sections in flat fold- 3 member come together to form a transverse ed form in a compact pack on a' support berow of perforations, thej aws being retracted; low the perforating and folding mechanism Fig. 5 illustrates the relation of the parts as illustrated in Fig. 9. Ordinarily the more when they have advanced far enough from folding of a plurality of superimposed webs their positions in Fig. 3 to permit the jaws or plies produces a pack or pile which is to close; thicker'at the edges where the folds appear Fig. 6 is a view taken along the line 6-6 of than between such edges. In forming such 40 Fig. 2, parts being broken away to show the packs or piles according to the present invenunderlying structure; tion, however, the provision of lines of per- Fig. 7 is a view taken along the line 77 forations at the fold lines enables flat folds of Fig. 2; and compact packs to be obtained and partic- Fig 8 is a detail view on a larger scale ularly so in view of the pressing action of the 45 of a portion of a perforating blade; aws 20 at said fold lines.

Fig. 9 is a view illustrating the formation As illustrated in Figs. 1 and 2, the perof a pack as the material passes down through forating and folding mechanism comprises the perforating and folding means; two

shafts

21 and 22 having reduced ends Fig. 10 is a fragmentary view on a larger ournalled inside bars or

members

23 and 24 50 scale illustrating the appearance of the edge of a frame including ends 25 to retain the side of a fold as seen from above; members in fixed relation. Mounted on the Fig. 11 is a fragmentary view showing on

shafts

21 and 22 are two

gears

26 and 27 rea larger scale the material after perforation spectively which mesh with each other and are of the same size and shape so as to cause the rotation of the

shafts

21 and 22 at equal speeds in o osite directions. The actuation of these shafts may be effected by applying power to shaft 21.

As here shown, each

shaft

21 and 22 carries one blade 18 and one platen or anvil 19 at opposite sides of the shaft and these knives and blocks are so arranged that when the shafts are rotated, as indicated in Fig. 2, a blade carried by one shaft will engage the corresponding platen carried by the other shaft and this action will be reversed when the shafts have turned through 180. At each perforating operation, the material is folded and as the folds are effected alter nately from opposite sides, and the material is swung from side to side, the material tends to form, as illustrated in Fig. 9, a compact, flat-folded pack. It should be understood that a plurality of blades 18 and a plurality of blocks or anvils 19 may be provided for each of the

shafts

21 and 22, and that a suitable rate of feed of the material may be obtained by rotating the feed or guide rolls 16 and 17, at a surface speed corresponding to that of the knives and platen strips.

Each knife 18 is mounted in a bar 28 of which the ends are guided for radial sliding in grooves 29 at the inner sides of members or bars 30 on one of the

shafts

21 and 22 and the platen or anvil 19 of the corresponding shaft is mounted in a bar 31 slidably guided in grooves 32 at the inner faces of the bars 30 and at the ends opposite to those carrying the knife 18. Jaws 20 are provided at opposite sides of each of the bars 31 and are pivoted in the bars 30, these jaws being formed with engaging portions arranged to extend around the outer edge of the bar 31 for engagement beyond the outer face of the platen or anvil 19. Each platen is in the form of a relatively narrow strip and may be of any suitable material such, for example, as celluloid which is sufliciently resilient and presents a surfacewhich is not easily broken by the teeth, of the perforating blade.

The pivoting of the aws may be effected by pivots integral therewith and operatively connected together by gears 34 thereon adjacent one bar 30, and at the other end of the jaws one of the pivots 33 may be provided with an arm 35 connected by a tension spring 36 with an arm 37 projecting from the corresponding bar 30 so as to enable the application of the tension of the spring 36 in the proper direction to close the aws. Mounted on the other pivot 33 adjacent the same bar 30 is a curved cam or arm 38 by which the jaws may be opened by engagement with

pins

39 and 10 projecting from a member 11 attached to the bar 23.

As shown in Fig. 2, the blade 18 carried by the shaft 22 has already acted against the platen 19 on the shaft 21 and the material has been folded by the jaws 20 adjacent this platen and withdrawn from such blade 18. Upon further rotation of the

shafts

21 and 22 in the directions indicated, the jaws 20 on the shaft 22 will be opened by engagement of the arm 38 with the pin 39 and the blade 18 on the shaft 21 will be engaged by the platen or anvil 19 carried by the shaft 22, thus producing a line of perforations across the material 15.

As the shafts continue to rotate, the cam or arm 38 will ride off the pin 39 as indicated in Fig. 5 and the jaws 20 will swing together beyond the block 19 to fold the material over the edge of the blade 18. As the

shafts

21 and 22 continue to operate the blade 18 will be withdrawn from the jaws 20 as indicated in Fig. 9, the fold of the web remaining however in the grip of the jaws 20. As, however, the shafts continue their rotation, the material will be shifted somewhat to the right by the jaws until the cam or arm 38 engages a pin l0 and the jaws are again moved apart to release the fold of material gripped therebetween. During further rotation of the

shafts

21 and 22, the cam or arm 38 will ride off the pin 40 and the jaws will close and remain in such condition until the corresponding cam or arm 38 again engages the pin 39. Upon further rotation of the

shafts

21 and 22 the blade 18 mounted on the shaft 21 will engage the platen 19 mounted on the shaft 22 and the operation will be repeated in exactly the same way except that the fold in the material will be in the opposite direction.

It will be evident that the bars 30 and the two

shafts

21 and 22 must be so positioned that each blade 18 will engage the platen or anvil carried by the other shaft. To assure such cooperation between the knives and blocks, it is desirable to provide some means for angular adjustment. To this end each shaft is provided as indicated in Fig. 2with depressions 42 adapted to receive the inner ends of screws 43 threaded through the corresponding bars 30. It will be apparent that by loosening one screw and tightening the other, a slight relative rotation of each arm 30 on the shaft 21 may be produced. The arms 30 on the shaft 22 may be adjusted in position thereon in the same manner.

As each knife 18 strikes the corresponding platen or anvil 19 there may be side pressure on the blade 18 and to avoid the possibility of trouble resulting therefrom, each blade 18 is mounted in a groove of greater width and thickness than the blade and the rear edge of the blade rests in a narrow groove in which position it is held by means including a-set of screws 44 passing through the rear wall of the member 28 and through perforations in the blade 18 and threaded into the bar 28. Mounted on the shank of each of these screws 44 is a helical spring 45 interposed between the head of the screw and the blade 18 to hold the latter in proper position while permitting yielding thereof when required.

It will be evident that the blades 18 and the blocks 19 must be adjusted carefully to obtain suitable engagement throughout their lengths and to this end each bar 28 is provided with a series of screws46 screwed into the rear edge thereof but having their heads resting against the

shafts

21 or 22 as the case may be, so that by turning the screws in one direction or the other the proper adjustment may be obtained. Such adjustment of the screws 46 may be maintained by means of lock-nuts 47. The setting of the screws 46 merely determines the minimum spacing of the bar 28 from the shafts but outward movement of the bar may be prevented by means of screws 48 passing through slots 49 in the bars 30 and threaded into the bar 28. Obviously, by tightening the screws 48 after an adjustment, the bar 28 will be clamped in adjusted position. Adjustment of each bar 31 may be ob tained in the same general manner by supporting screws 50 provided with lock-nuts 51 and by clamping screws 52 extending through slots in the bars 30 and threaded into the ends of the bar.

Preferably the teeth 18 of each blade 18 are rather broad and have relatively narrow gaps therebetween, as indicated in Fig. 8, and the perforated material 15, which may include a plurality of superimposed plies 15}, appears in extended form as indicated in Figs. 11 and 12, and in folded form as indicated in Fig. 10. It will be evident that the paper, when perforated as indicated in Figs. 10 and 11, will be connected across the fold lines only by narrow strips 15 and these strips will offer very little resistance to folding along such fold lines thus enabling a much sharper and flatter fold to be obtained than by former methods.

Cross folded packs of superimposed webs of paper are of value for different purposes, as for example in making simultaneously a plurality of copies of an invoice or statement, and a flat-folded pack such as obtained by carrying out the present invention is especially advantageous in that it is compact and therefore does not require so much space, and furthermore is not liable to become disarranged.

It should be understood that various changes may be resorted to within the scope of the invention and that portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A device of the class described including means for forming at a single station successive fiat perforated folds alternately in opposite directions in a multiple-ply web fed downwardly therethrough, and means for causing the material passing downwardly from said forming means to collect in crossfolded pack form.

2. A device of the class described including means for forming at a single station successive flat transverse perforated folds in superimposed webs of paper alternately in opposite directions, and means to guide said webs into position for action thereon by such fold-forming means.

3. In combination, means for perforating a multiple-ply web at a plurality of points in each of a succession of transverse lines across the web, and means for creasing said web into a fiat fold along each line of perforation concomitantly with the perforating action and alternately in opposite directions.

4. In combination, a toothed device, a platen member to cooperate with said device to perforate along transverse lines superimposed webs passing through the device, means for moving said device and platen members toward and from each other, and folding means for engaging said webs on opposite sides of a line of perforations substantially at the time the perforating is effected and forming a flat fold at said line.

5. In combination, two frames rotatable about parallel axes, means to rotate said frames in opposite directions, means including a plurality of teeth arranged in a line on one of said frames and an anvil on the other of said frames to cooperate to form transverse lines of perforations in superimposed plies of material passing between said frames, jaws mounted on the same frame with said anvil and on opposite sides thereof and arranged to engage each other in front of said anvil, and means to open said aws before engagement of said anvil by said teeth and to close the same to fold back said webs along each line of perforations made by said teeth.

6. In combination, a narrow platen mounted to rotate about an axis, jaws at opposite sides of said platen, means for urging said jaws together at the front of said platen, a toothed blade movable into and out of engagement with said platen in a part of the path thereof to perforate material extending therebetween, means to open said aws as the platen approaches a position for engagement by said knife and to release said jaws immediately upon such engagement for folding said material along the line of perforation, and means to separate said jaws after disengagement of said blade from said platen.

7. In combination, a knife mounted to rotate about an axis, an anvil movable to and from a position to cooperate with said knife to perforate material therebetween, jaws pivoted adjacent said anvil to move therewith, means urging said jaws intoengagement in front of said anvil, means to open said jaws when said block approaches a position for engagement with said knife and for releasing said jaws, after engagement between said knife and said block, to fold said material over said knife and remove it therefrom, and means to open said jaws upon separation of said anvil and knife.

8. In combination, two parallel shafts, means for rotatin said shafts in opposite di rections at equal speeds, a frame on each of said shafts, a toothed member on one of said frames, a platen member on the other frame for engagement with said toothed member and means for adjusting one of said members including screws interposed between said member and the corresponding shaft.

9. In combination, two rotatable members, means for rotating said members in opposite directions at the same speed, toothed blades and platen members arranged alternately on said members for perforating, first from one side and then from the other, webs passing between said rotatable members, jaws associated with each of said platen members and urged tmvard engagement across the face thereof, and means for opening each pair of jaws as the adjacent platen approaches engagementwith the corresponding toothed blade on the other rotatable member and permitting the jaws to close after such blade and platen engagement, and for again opening said jaws after separation of the blade and platen.

10. In combination, means for perforating superimposed webs at a plurality of points in each of a succession of transverse lines across the web comprising cooperating piercing and anvil members, and means for folding and pressing said webs into a flat fold. along each line of perforation concomitantly with the perforating action and alternately in opposite directions, and for swinging the webs back and forth to form a pack in accordance with the direction in which the folds are formed.

11. In combination, a toothed blade, a platen member to cooperate with said blade to perforate along transverse lines superimposed webs passing through the device, means for mov ng said knife and platen members toward and. from each other, folding means associate l with said platen member and including jaws for engaging said webs on opposite sides of a line of perforations substantially at the time the perforation is effected and forming a flat fold at said line, and means for lfecting relative adjustment between said jaws and said platen member 12. In combination two frames rotatable about parallel axes, means to rotate said frames in opposite directions, means including a toothed knife on one of said frames and an anvil on the other of said frames to cooperate to form transverse lines of perforations in superimposed plies, of material passing between said frames, a connection between said knife and the corresponding frame supporting the knife against radial movement but permitting the knife to yield rearwardly with reference to the direct-ion of rotation of the frame, jawsmounted on the same frame with said anvil and on opposite side thereof and arranged to engage each other in front of said anvil, and means to open said jaws before engagement of said anvil by said toothed blade and to close the same to fold back said webs along said line of perforations substantially as soon as the latter is formed.

13. In combination, two parallel shafts, means for rotating said shafts in opposite directions at equal speeds, a frame on each of said shafts, a toothed knife member on one of said frames, a platen member on the other frame for engagement with said knife, means for adjusting one of said members including screws interposed between such member and the corresponding shaft, and threaded into such member, and means for clamping the adjusted member in position including screws extending through slots in said frame and threaded into the adjusted member.

14:. In combination, two rotatable mem bers, means for rotating said members in opposite directions at the same speed, toothed blades and platen members arranged alternately on said members for perforating, first from one side and then from the other webs passing between said rotatable members, jaws associated with each of said platen members and urged toward engagen'ient across the face thereof, and means for opening each pair of jaws as the adjacent platen member approaches engagement with the corresponding toothed blade on the othe rotatable member and permitting the jaws to close after such blade and platen engagement, and for opening said jaws after separation of the blade and jaw, and means for effecting relative adjustment of said rotatable members around their axes to assure proper engagement of said blades and platen members.

In testimony whereof I have afliXed my signature to this specification.

ABRAHAM NOVICK.