US1806706A

US1806706A - Folding machine

Info

Publication number: US1806706A
Authority: US
Publication date: 1931-05-26
Anticipated expiration: 1948-05-26

Description

May 26, 1931. E. D. RAIDER".A 1,806,706

' FOLDING MACHINE: v

Filed Oct. 1851928 5 Sheets-Sheet 1 if@ l l l 2,7 ze 28 s;- /W//f42 .9

dttornegs May 26,1931. E. D. RADER 1,803,706

FOLDING MACHINE I Filed Oct. .18, 1928 3 Sheets-Sheet 2 May 26, 1931- E. D. RADER y1,806,706

- FOLDING MACHINE Filed Oct.. 18, 1928 5 Sheets-Sheet 5 A Q Bnuentor Patented May 26, 1931 UNITED VSTATES PATENT OFFICE EARL vD. BADER, 0F "BEDFORD, NEW YORK, ASSIGNOR TO DEXTER FOLDER COMPANY, OF NEW YQRIL N. Y., A CORPORATION 0F YORK i FOLDING MACHINE Applcationled lOctober' 18, 1928. Serial No. 3173,363.

This invention relates to folding machines, and more particularly to means for cleaningithe slots or grooves for perforating devices employed on such machines.

Much difliculty has heretofore been eX- perienced in the use of'perforating devices on paper folding machines, due to packing of the -paper'punchings or shavings in-the slots or grooves for the perforating devices` In a folding machine, the slots or grooves for the perforatingdevices are generally formed'in` the folding roller and do not permit the' egress of paper particles, punching or shavings as in other forms of perforating 7 devices. v Packing ofpaperin these grooves results in excessive wear onv the lperforating devices and requires frequent replacements of the same with the .attending increased operatingcosts and decreased production ofthe machine. i Y

At the presentVv time, equipment is in use whereby signatures containing 'sixty-four or more pages maybe made,v and it has been found that when perforating these and ,other signatures, the Vpunchings or shavings are forced firmly in the groovev or slotfor the perforator and fill said slot or groove up with a packing of paper `which is substantially as hard as the material forming the roller in which said slot or groove is generally located. The hard, packed material in the slot or groove tends to push the perforator device therefrom, and as very rigid springs are used in forcingtogether the rollers that carry the perforator and said Vgoove,y iirst the sharp teeth of the perforator and then` the sharp edge of the body of the blade itself ris disintegrated.

`@ne object `of the present'V invention is to provide aicleaning device that overcomes the above mentioned disadvantages. Another object of the inventionA is to provide a positively driven cleaning device that may'beoperated from the-rollers of the folding mach-ine. Y i Y Anotherobject of vtheinvention is to provide a driven cleaning deviceI that may be adjusted as desired with respect to the-perforator slot orgroove.V .A

Another objectof the invention is to pro vide an improved and eiiicient mounting for the perforator device.

Another object of the invention is to provide improved sectional folding rollers with perforating devices adjustably and detachably mounted thereon.

It isbecoming the practice in binderies to make partially slit or cut multiple signatures, thus permitting the bundling and handling of the signatures in their largest form. These partially severed multiple signatures are later broken by hand in bunches and placed in the proper boxes on the gathering machine, the insetting machine, or distributed for hand gathering or inserting. VThe production of such signatures simplifies the problem of packing them onthe folding machine in that divisional packing boxes are not required and the resulting difficulties incident to the use of such boXes'is eliminated. l

Another object of the present invention is to provide an improved mechanism for, makingfthese partially severed, multiple signatures.

y Another object of the invention is to provide mechanism whereby a partially severed multiple signature may, ifv desired, be completely severed at one pointfin the length thereof. Y

Y Other objects of the invention willappear as the following descriptionthereof proceeds.

In order to more clearly understand the invention reference may be had to the accompanying drawings which illustrate one embodiment of the inventive ideaand where- 1n Fig. 1 is a detail perspective view showing part of a paper folding machine equipped with devices embodyingthe present invention; i

Fig. 2 is an enlarged side elevation, partly in section, of the mechanism shown in Fig. l. Fig.- 3 is a vertical longitudinal sectional view on the line 3-3 of Fig, 2;

' -Fig 4 is a detail perspective view of ,da

perforator and associated partsl separated for purposes of clearer illustration;

Fig. 5 is a detail perspective viewof mechanism for cutting a multiple signaturev into two parts;

Fig. 6 is a detail perspective view of the cleaning device with the parts thereof separated for purposes of clearer illustration;

Fig. 7 is an enlarged detail perspective view of a folded, partially severed multiple signature; and

Fig. 8 is an enlarged detail perspective view of an unfolded partially severed multiple signature similar to that shown in Fig. 7.

Referring to the drawings, wherein like reference characters designate like parts throughout the several views, 5 indicates a sheet which is fed from a support (i into the bite of a pair of knurled feed rollers 7 and 8 fixed on shafts 7 and 8 respectively that are journaled in suitable bearings on the side frames 9, 10 of a folding machine (Figs. 1 to 3, inclusive). Journaled in suitable bearings on the side frame 10 of said machine is a shaft 11 which is driven from any suitable source of power (not shown) and carries a bevel gear 12. The bevel gear 12 meshes with a similar gear 13 (Fig. 1) that is fixed on the feed roller shaft 8 at one end thereof. Fixed on the opposite end of the shaft 8 is a spur gear 14e that meshes with a similar gear 15 which is fixed on the feed roller shaft 7. The shaft 11, together with the above described gearing, serves to drive the feed rollers 7 and 8 in the directions indicated by the arrows (Fig. 2) so that the sheet 5 is fed into the mouth of a grid 16 and delivered downwardlTT therein until the leading edge of said sheet engages a stop 17 adj ustably secured to and extending transversely of said grid. The sheet 5 when fed into the grid may be unfolded, or said sheet may have had previously imparted thereto one or more folds as desired. In the present case, it is assumed that the sheet 5 will have been folded a suiiicient number of times so that when finally folded as hereinafter described, a heavy, multiple signature may be formed from said sheet.

The grid 16 is supported in any suitable manner on the side frames 9, 10 of the machine, and when the leading edge of the sheet 5 strikes the stop 17 of said grid, the continuous feeding action of the rollers 7 and 8 on said sheet causes it to buckle adjacent the bite of the roller 7 and a roller 18 which is fixed on a shaft 19 removably journaled in suitable bearings on the side. frames 9, 10 of the folding machine. The roller 18 is driven in the direction indicated by the arrow (Fig. 2) by a gear 20 which is fixed on the shaft 19 and meshes with the gear 15 that is fixed on the shaft 7 iVhen the sheet 5 is buckled as aforesaid, said sheet is folded and fed upwardly by the

rollers

7 and 18 and, if desired, into a grid 21 that has adjustably secured thereto and extending transversely thereof a stop 22 against which the folded edge of the sheet strikes. The grid 21 is supported in any suitable manner on the side frames 9, 10 of the machine and when said folded edge strikes the stop 22, the continued feeding action of the

rollers

7 and 18 causes the sheet to buckle adjacent the bite of the roller 18 and a roller 23. This roller 23 is fixed on a. shaft 2li extending transversely of the machine and removably journaled in suitable bearings of the side frames 9, 10 thereof.

The roller 23 is driven in the direction indicated by the arrow (Fig. 2) by a gear 25 which is fixed on the shaft 24 and meshes with the gear 2O that is fixed on the shaft 19. iVhen the sheet is buckled adjacent the bite of the

rollers

18 and 23, said rollers again fold the sheet and feed it forwardly onto conveyor tapes 27 that deliver the folded sheet from the machine or to a suitable packing mechanism (not shown) associated therewith. The tapes 27 are driven in any desired manner and pass over rollers 28 ournaled in suitable bearings on the rear end of a table 29 over which said tapes also pass.

rlhe folding rollers

18 and 23 are made in

sections

30 and 31, respectively, and said sections are preferably knurled as clearly shown in Figs. d and 5 of the drawings. The roller sections 30 are removably secured on the shaft 19 by machine screws 32 that 'extend through suitable openings in said sections and engage in a groove 33 extending longitudinally of said shaft. The ends of the sectional roller 18 are preferably formed by collars 34 having openings therein for machine screws 35 that engage in the groove 33 and removably secure said collars on the shaft 19. The roller sections 31 are removably secured on the shaft 24- by machine -screws 36 that extend through suitable openings in said sections and engage in a groove 37 extending longitudinally of said shaft 24;. rfhe ends of the sectional roller 23 are preferably formed by collars 38 having suitable openings for machine screws 39 that engage in the groove 37 and removably hold the collars in position on the shaft Certain of the roller sections 31 are made in two

alined parts

31, 31 threaded together at 10, and removably clamped between said parts are serrated perforators l1 that project in grooves 42 formed in certain of the roller sections 30.

When the folded sheet is fed between the

rollers

18 and 23, the serrated perforators 41 act to partially sever the sheet into the component parts of a multiple signature such as shown, for example, in Figs. 7 and 8 of the drawings. As above pointed out, multiple signatures thus formed are later broken by hand in bunches and placed in the proper boxes on the gathering machine. In some cases it may be desirable to completely sever the multiple signature into a plurality of parts, each including a plurality of partially connected individual signatures. In accordance with .the .present invention, means are provided for this purpose compri-sing ,one or more pairs of cutters 43 and 44 mounted in cooperative relation on the

rollers

18 and 23 respectively between, and in spaced relation with, a pairv of the perforators 41 and the adjacent perforator slots or grooves 42. The cutter 43 is secured, as by machine screws 45, on one end of va `collar 46 mounted .on the shaft 19 and removably Vsecured thereto by a machine screw 47 that passes through a suitable opening in said collar and engages in the groove 33. The cutter 44 is secured, as by machine screws 48, on `one end of a collar 49 which is mounted .on the shaft 24 and removably secured thereto by a machine screw 50 which lpasses through a lsuitable opening in said collar .and engages in thegroove 37. ln the event cutters such as above described are used, .collars 51 and 52 are preferably secured on the shafts 19 and 24 respectively to provide suliicient clearance'for said cutters and to hold the roller sections at the left thereof (Fig. 3) in proper position .on said shaft. The collar 51 is removably'secured on the shaft 19 by a machine screw 53 that passes through a suitable .opening in ksaid collar and engages in the groove 33 of said shaft. The collar 52 is removably secured .on the shaft 24 by a machine screw 54 that passes through a suitable opening in said collar and .engages in the groove 37 of said shaft.

The number-of twofplart perforator carry.- ing roller sections 31 and grooved roller sections 30 maybe varied as ydesired in accordance with the desired number of parts ,of .the multiple signature. Thev perforator carrying roller sections and the grooved roller secr tions, as well as the cutters, are preferably spaced .equal distances Vapart by the remain.- ing roller sections sand collars that make up the

knurled folding rollers

18 and 23. For this purpose, the roller sections 30 and31 have the same linear dimensions respectively, The .collars also have the same linear dimensions with ,the 4exception of the collar 49 that is somewhat longer than ,the collar 46 ,to in-V sure proper cooperative relationbetvveen the cutters 43 and" 44. The .roller sections ,31 could, on .the other hand, all be provided with perforators 41, in which case all ,of the roller sections() would be provided with grooves 42 for said perforators. i

In accordance with the present invention improved means Vare provided for cleaning the perforator slots'or grooves 42, said means preferably being .operated and construct-.ed as follows. lThe gear`20 that is xed von the shaft 19 meshes withan idler gear 55 journaled on a stub shaft 56 extending inwardly from Vand secured to 'the side frame 9 ,of the machine (Figs. 1 and 3). The idler gear 55 in turn meshes with a gear 57 fixed on oneextremity of a shaft v`58 extending transversely of the machine ,and Jo-urnaled in suitable .bearings on arms. The arms 5;,9 are secured, as by set screws 60, on a roel: shaft 61 extending in parallel relation with the shaft `58 and also journaled in suitable bearings on the .side frames 9, 10.01 the machine. The shaft 58 is continuously driven by the gears 20, and 57 and said shaft has secured thereto at intervals along the same a plurality of rotary driven serrated `cleaning elements 62 the teeth of which project into the grooves 42 and prevent paper punchings or shavings produced by the perforators 41 from collecting and packing in said grooves. The drive for the serrated cleaning elements Io2 is such that said `elements and the roller 18 4are driven in opposite directions respectively,

thus further insuring against the collection and packing `of paper punchlngs 4.or shavings in the grooves 42 and thereby preventing ei;- cessive wear on the perforators 41.

The serrated cleaning elements .62 are removably secured to ,and adjustable along the shaft 58 and for this purpose each of said elements may be clamped between .the members ,of a two-part collar 63,63 having a suitable opening for a machine screw 64 that engages in a groove V65 extending longitudinally `of the shaft58, the machine screw 64 thus acting to secure the collar 63, 63 and the .cleaner .62 onsaid shaft and .providing for adjustment of said collar and said cleaning yelement along said shaft in accordance with adjustmentsof the adjacent grooved roller section 30 and perforator carrying section 31 along the shafts 19- and 24 respectively. The parts ,of the collars-63, -63 Aare preferably threaded together as at 266 so that the cleaning elements Y62 may be Vclamped between said parts and removed therefrom .as desired.

In accordance with the present invention,

Y the serrated cleaning elements 62 may be adjusted to .operative yand inoperative positions with respect to the roller 18 and the grooves 42 therein, For this purpose, the roel; shaft 61 preferably has secured .on one end thereof an arm V67 (Figs. 1 and 46) that is provided with lan arcuate-shaped slot 68 and an operating handle 69. Extending through the slot 68 is a machine screw() having threaded engagement in a suitable opening formed in .the side frame 9. This screw 7.0 is provided with a lrnurled head 71 which normall clamps the arm `67 against the machine frame .9 so that the .cleaning elements 62 are held rigidly in operative position `during their normal operation. When it is desired to ade just vthe serrated .cleaning elements l62 .to inoperative positions, the screw 7.0 is unclamped `and removed by turning the knurled head 71 in the proper direction, whereupon .the handle'69'may be operated .to rock .the shaft v61 and move the cleaning elements 62 to inoperative positions.

The perforators .41 may, if desired, be replaced by slitters that completely sever the sheet instead of perforating or partially severing the same. In this case, the cleaning means of the present invention operates equally as well as in the first case, to clean the slots or grooves 42 and prevent the packing of paper therein. The expression perforator7 employed in the present description and in the claims appended thereto, is therefore to be construed broadly enough to include device that completely severs the sheet as well as one that perforates or partially severs the sheet.

From the foregoing it will appear thatl the present invention not only insures againstpaclring of the perforator slots or grooves with the attending excessive wear on the perforators, but also enables relatively thick multiple signatures to be produced which may. if desired, be severed into part-s each including a plurality of partially severed individual signatures. It will further appear that the cleaning device of the present invention enables said relatively thick multiple signatures to be produced economically and at high speed without frequent stopping` of the machine for repairs to or replacement of the perforating devices. j

The cleaning and perforating devices of the present invention are applicable not only to the particular type of folding mechanism herein illustrated and described, but also to any type of folding mechanism with which it is desired to associate said devices, and at any point where the problem of cleaning perforator grooves arises. Accordingly, while one embodiment of the inventive idea has been particularly described and illustrated herein. the present invention is not limited to such embodiment or otherwise than by the terms of the appended claims.

YVhat is claimed is 1. In a folding machine, a perforating device, a member having a groove for said perforating device, and a rotary driven element for cleaning said groove.

2. In a folding machine, a perforating device, a member having a groove for said perforating device, a rotary serrated element for cleaning said groove, and means for driving said rotary serrated cleaning element.

3. In a folding machine, a folding roller having an annular groove, a perforating device disposed opposite the groove of said folding roller, and a rotary driven element for cleaning said groove.

1l. In a folding machine, folding means including a folding roller having a groove eX- tending circnmferentially thereof, a perforating device disposed opposite the groove of said folding roller, a rotary element for cleaning said groove, and means for driving the grooved folding roller and said rotary cleaning element in opposite directions.

5. In a folding machine, folding means including a driven folding roller, a perforator carried thereby, a second folding roller having an annular groove for said perforator, a rotary device for cleaning said groove, means for driving the grooved folding roller in one direction from the first named folding roller, and means for driving the rotary cleaning device in the opposite direction from said grooved folding roller.

6. In a folding machine, folding means including a driven folding roller, a perforater fixed on said roller to rotate therewith, a second folding roller having an annular groove for said perforator, a rotary element for cleaning said groove, and means connect ed with said driven folding roller for dri ving the grooved folding roller and said cleaning element in opposite directions.

7. In a folding machine, a grooved member, a perforator projecting into the groove of said member, and a rotary driven element for cleaning said groove and projecting there in at one side of said perforator.

8. In a folding machine, folding means in cluding a driven folding roller, a serrated perforator fixed on said roller to rotate there with, a second driven folding roller provided with an annular groove into which said serrated perforator projects, and a rotary driven serrated element for cleaning said groove and projecting therein at one side of the serrated perforator.

9. In a folding machine, a perforator, a member having a groove disposed opposite said perforator, an adjustably mounted rotary driven element for cleaning said groove, and means for adjusting said element with respect to said member and the groove therein.

l0. In a folding machine, a perforator, a member having a groove for said perforator, a rockshaft, a driven element carried thereby for cleaning said groove, means for rocking said shaft to adjust the driven cleaning element with respect to said member and the groove therein, and means for locking the rockshaft and the driven cleaning element in various positions of adjustment.

l1. In a folding machine, a driven element made in two alined parts detachably con nected together', a perforator clamped between said parts to rotate therewith, a driven element having a groove for said perforator, and means adjacent the last named driven element for cleaning the groove therein.

12. In a folding machine, a driven element made in two alined parts screwed together. a perforator removably clamped between said parts to rotate therewith, a driven element having a groove for said perforator and into which the same projects, and a cleaning element projecting in said groove and adapted to clean the same.

13. In a folding machine, a driven member including sections each made in two alined detachably connected parts, perforators a all clamped between the parts of said sections and rotatable therewith, va second driven member including sections having annular grooves disposed opposite said perforators, and devices adjacent said grooves for cleaning the same.

14. In a folding machine, a driven roller vhaving a cutter thereon, one or more perforgrooves for said perforators, and means for cleaning said grooves.

16. In a foldingmachine, folding and cutting means including a pair offolding rollers having opposed cutters thereon, one of said rollers being provided at opposite sides of the cutter thereon with annular grooves spaced from eachother and from said cutter, perforators fixed on the other roller opposite said grooves, and devices for cleaning theV grooves.

17. The combination with a loop folding machine including a grid and a pair of folding rollers arranged in cooperative relation therewith, of a perforator mounted on one of said rollers opposite an annular groove in the other roller, and a rotary driven element for cleaning said groove.

18. The combinaton with a folding machine for producing a multiple signature, of means for completely separating'the multiple signature at one or more points, and means for partially separating said multiple signature at other points to produce one or more groups of partially attached signatures.

19. The combination with a folding machine for producing a multiple signature, of a cutter for completely separating the multiple signature at a point between the ends thereof, and devices for perforating the completely separated parts of said multiple sig-- nature to' produce groups of partially attached individual signatures. Y

20. rIhe combination with aloop foldingV machine including a grid and rollers for producing a multiple signature, of a cutter on one of said rollers for completely separating the multiple signature at a point between the ends thereof, and perforating devices'on one of said rollers adapted to partially sever the completely separatedl parts of said multiple signatures and thereby produce groups of partially attached individual signatures.

I'serrated blade for partially separating a sheet, another member having a groove in which said serrated blade operates, and a rotary device for cleaning said groove.

Q3. In combination, a member carrying a blade for partially severing a sheet, another member having a groove in which said blade operates, and a rotary device for cleaning said groove.

In testimony whereof I have signed this specication.

Y EARL D. BADER.

21. In combination, a member' carrying a perforator blade, another member having a groove in which said blade operates, and a rotary cleaning deviceV for said groove.

22. In combination, a member carrying a