US1687522A - Attachment for paper-slotting machines - Google Patents

Description

ELSTAUDE Arum' Fon 'rusa sLoTTnm camas med vga/:5L ma V 5 sheets-snm 1 l Inventor B dwi G Stande 1 orne s Oct. 1 1928. f

la. G. sTAuD: ATTACHHENT FOR PAPER SLOTTIN IACHINBS 'Filed Dec. 31, Y1 2:s 5 sheets-sheet 2 u N n iger.

. Edwin Stande I' Attorneys Oct. 16,. 1928. 1,687,522

E. G. sTAUpE ATTACHHEN'T FOR PAPER; $LOTTING MACHINES .v

' Filed Dec. :51, -1925 5V Sheets-sheet 4 ,-9 -j A9v 57` E ff I 58 E: 9- 58'@ d52 52 MMU L FIG. 9

n ujn n vE' Stande B 4 y Atrrfegw Ocl, 1928.

E. G. STAUDE ATTACHIENT FOR YAPER SLOTTING MACHINES .5 Sheets-Sheet 5 Filed D66. 31. 1923 Inventor 1 Fwing Stande By J w! Aff rneys lPatented t. 16, 192.8..

treatin 'EDWIN e. srAUnE, oFMrNNEnroms', rrrnnnso'ra ATTCBENT FR '.EAPER-SILOWLIIQ'G' MACHINES. l

Appucamn mea reemner 31, i923.. serial No. 683,773.

My invention relates to machines for slottingpaper blanks generally and is particularly adapted for use in the manufacture of corrugated or ber containers andlike ar-4 ticles.

My present invention is an improvement over the invention described and claimed in Letters Patent'of the United States, issued to me J une 6, 1922, #1,418,844.

1o The ,object of my present invention is to f simplify andimprove the device of my for# mer patent by providing means for positively cutting'the tongues' or strips to form the slot without the necessity of using timing gears which require accurate adjustment to properly coact with a knife or die.

A further object is to `provide-a slotting` head wherein the distance between the upper and lower slot in the blank may be variedby adjustment ofthe knives.

A further object is to proyide a cutting knife by the operation of which the material maybe bent into the bottom of the lower die and cut off by the anvil" knife without i tearing.

' A further object is to provide for the feed of stock of varying thickness and construcvtioii of slottin head which can be taken apart for grin ing or sharpening the cutting edges. l.

A further Objectis to provide Vmeans to prevent stock from winding on the upper vslotting .headand an improved feeding, devicefor operation in combination with the slotting heads.

The invention consists generally -in various constructionsfand combinations all as hereinafter described fand particularly pointed out inthe claims. j L l In the accompanying drawings forming part of this specification,

'Figure 1 is a planview of a-container, blank-slotting and parallel-creasing machine;

Figure 2 is a longitudinal sectional view on the line A-B -of Figure 1 looking in the direction of the arrow; j

Figure 3 is an enlarged section through a portion ofthe automatic feeder and thefslot- 5u tingheads looking in the opposite direction from the view in Figure 2;

Figure 4 is a rear view `of the slotting head showing the position of theslotting knives and cut-off knife;

' been performed.

for, lateral adjustment.

1, bearing against the dis vdriven by bevel gears 20 an 21.

Figure 5 is a view similar to Figure 4; showingv al plurality of the slotting heads one of them being shown in section;

vFigure 6 is a detail sectional view of the' upper portion of the lower die; v

4Figure 7 is a view similar to Figure 6 taken on the'line direction of the arrow; Y v

Figure 8 is an enlarged view of the cutting heads.; i

, Figure 9 is a plan view of an ordinary container blank after the slottingoperation has In the drawing, 2 and S represent the left and right frames of the machine held together by suitable spreaders 4: and connecting bars 5 which insure the necessary rigidity. 6 isa drive shaft on which as' set screws 7 see shaft 6 is a shaft 8 on which the upper cutting lead 9 is mounted and secured by a suitable key 10 held in place by set screw 11, said key operating in a groove in the shaft 8 to allow A clutch pulley 12, Figure 1, is mounted on the shaft 6 and a suitable train of gears the respective shafts able shaft 14 which operates the feed chains 24 to move the blanks one at .a time out of the hopper. Shafts-15` andr16 upon which are mounted parallel "creasing rolls are also driven from the gears driven by a variable' friction wheel 18, Figure wheel 19 and The gear 21 is driven by a spur gear'22 and takes its power from the shaft 6. -On the shaft 14: are suitable sprockets 23 carrying the said feeder chains 24 having thereon a short bar 25 which; is adapted to contact with the rear' the blank after it is slotted through the creas# v ing rolls 31 and 32 and from these rolls the blank passes'to a slow moving convev or33, operating on pulleys 34 supported y the shaft 17. 35 indicatesa suitable manufacthe lower cutting dies- 7 are mounted, secured by suitable means such Figure 8.. Above the 13, Figure 1, drives. 6 and 8 and also a suit-- 13. A shaft 17 is turers certificate printing apparatus. The stock is prevented from winding on the upper cutting heads 9 by stripper bars 36, see Fig ure 2.

Referring to Figures 3 to-8 in which the cutting heads are particularly shown,l it will be noted that as the chains 24 advance the lower blank into the cutting heads, the knife 37, see Figure 3, mounted in the upper cutting head coacting with the groove 38 in the lower die 7 will cut along both sides of t-he tongue, and at the one end of the knife 37 a chisel-shaped cutting edge 39 is provided extending transversely of the knife, and c oacting with the bottom 40 of the slot 38 cuts across t-he tongue formed by the knife 37 leaving it depending by' a narrow piece of stock corresponding in width to the. groove 41 in the bottom of the slot. The knife 37 cooperating with both sides of the slot 38 will cut out the sides of the tongue and 'the cutting edge .39 striking the bot-tom 40 of the slot will Sever, the. stock except where it lies over the narrow groove 41, thev partially sev ered tongue dropping into this groove and being removed by the clean-out device 42.

f theh The cutting edge 39 'does not entire ly Vsever the end o f the tongue but the material is so nearly severed that it will be held by friction against the side walls of the groove and will `pull away from the blank and be removed by the clean-out device.

I regard this tongue-cutting device a valuable feature of the machine as it does away with the high fang tooth in general use on machines of this type which is intended to penetrate the material before the sides of thel .tongue are completely severed. This form of tooth has a tendencyl to tear the rear endof the slot in the revolution of the upper head. Myl improvement'makes a clean cut ofthe tongue and the slot zis always the same depth ,and no timing gears are required, the use of which reventsrapid adjustment .of the ma,` chine or different sizes of work. Furthermore, the use of timing gears necessitates ears treme care inadjustment to make the coact-- in knives register roperly. e shaft 8 is adliusted so that the cutting edge 39 will touch the bottom 40. No further adjustment of theuppe and lower cuttingy heads'bein provided to compensate for tlie 'diiferent t icknesses .of stock, I provide a band` or tire 43 of yielding material on the lower; slot head 7 that is ada ted to yield and allow'ftlxe material to be fed) evenly between ea s. For the purpose of assembling the lower cutting head and providing means for sharpflA eningfthe cutting edges,4 I provide the part 44 with a thread portion 45 and a locking ring 46, see Fi re 7, and between the locking, ring and t e wall of the part 44,1 arrange `the ring 40 forming the bottom of the slot 38 and with which fthe cutting edge 39 contacts of the slot 38 Aand the ring 47 for sharpening.

purposes. The ringl46 is tightened by a spanner wrench fitting slots 48, see Figure 9.

'lo cut a deep slot in they blank of greater length than the knife 37 I provide additional knives 49 and 50,- see Figure 8, mounted on suitable blocks in alinement "with knife'37 and' removable from the cutting head, but adapt-ed as shown in Figure 3 to form a continuation of the knife 37. To cut a short slot the knives 49 and 50 may be removed. Upon the opposite side of the cutting head,I provide knives 51, 52 and 53; the knife 51l having a raised cutting edge 54 corresponding to the edge 39 except that itis extended in the.

opposite direction.

To vary the distance between edges ferent sizes, I loosen the cap screws 55, see

"igure 5, to slide freely inthe bevel groove 57, see F igure-8. When the knives have been properly adjusted, clamp the cap screws, thereby firmly holding the knives in their cutting position. To facilitate the'adjustment of the cutting edges 39 and 54, I prefer to provide a graduated scale- 58 on the upper cutting head, see Figure 5. A line 59 .is provided on the'block 51 and when the block is adjusted So that the line 59 registers with the line 5 of the scale, the operator will understand that the distance between the cutting edges 39 and 54, is-exactly flve inches. VI with this, arrangement tovery quickly and accuratelyadjust the knives for the varying sizes of stock and articles to be-cut.

various ways, the details'of construction heremshown and 4'described may be modified and still be within the scope of my invention.

I claim asmy invention: 1.- A paper stock slotting machine compris-v ing-a revolving member havin :a peripheral slot Iprovided with cuttingv revolving the cutting y ges, a second i member, a kmfe mounted thereon 39 and 54 for cutting blanks of difto permit the nut 56, see Figure 8,"

am therefore able i between-which and the edges of said slot the v1Iiiplper stock is sheared to form a tongue, said adapted to partially sever saidton e trans'- lle' fe having a transverse' cutting edge,"-' Y' versely from the stockanfd a cleamng device y .operating in vl,said slot nearer the axis of said revolving'1 member'than said cuttingedge to engage t e tongue so partially severed and remove it froms'aidslot, t r'stock slotting machine compris- 2. Apa" ing a reve vingnember having'a peripheral slot provided lwith cutting edges and-.a fiat bottom, ai-second revolving member, a knife munted 'thereon'between which and the edges of, said slot the .paper stock is sheared to'forx a tongue, said knife having a (trans-- veres cutting edge to enten'said slot and engage said tongue between it and the bottom f or said slot to make a partial separation of the tongue from vthe stock, and'means opslot thepaper slot. l

3. A paper stock slotting machine compris said knife' having a eratin'g nearer theaxis of said first-named revolving member than-said cutting edge to complete the removal of the tongue om said ing a revolvingv member having a peripheral slot provided with cutting vedges and a com- ,slot provided with cutting edges and a dat bottom having a narrow groove therein, a second revolving member, a knife mounted thereon between which and the edges of said stock is sheared to form a tongue,`sai-d knife having a transverse cutting edge adapted to enter said slot and sever said tongue transversely from the stock except or that portion thereof over said groove, and a yielding' means interposed' between said revolving members -tocompensate for variation in the thickness of the stock,

5. A paper stock slotting machine comprisslot provided with cutting edges and a comparatively narrow groove in the bottom of saidslot, a second revolving member, knives mounted thereon between which` and the edges of said slot the paper stock is sheared,

said knives having transverse cutting edges adapted to enter said slot and cooperate with the bottom tlie're'o and with said groove to partially sever the tongue formed in said slot by said knives, said 4knives having means adapting them for circumferential adjustment towardand from each other to. cut slots of different sizes. i f

6. A paper stock slotting machine compris-' ing al revolving member having a peripheral' -slot provided with cutting edges and acomparatively narrow groove. in vthe bottom of said slot, a second revolving member, knives mounted thereon between which and the edges of said slot the paper stock is sheared,

said knives having transverse cutting edges' said slot and cooperate withl the bottom thereof and with said groove to-j adapted to enter partially sever the tongue formed in said slot y said knife, said knives having means` i adapting them for circumferential adjustment toward and iromeach other to cut slots vodiier'ent sizes, and a scale device whereby ing a revolving member having a peripheral( so separated.

the desired adjustment of said knives may be determined. f

7 A paper stock slotting-machine com-pris ing a revolving member having a peripheral slot providedwith cutting edges and a comparatively narrow groove in said slot, a second revolving member, a knife mounted thereon between which and the edges of said slot the paper stock is .sheared,

.said knife having transverse cutting edges adapted to enter said slot and cooperate with the .bottom thereof to-sever the tongue formed by said knife upon botlisides of said groove and cause said tongue to drop into said groove, and a clean-out device opera-ting: Vin said groove and adapted-to remove the tongue from said groove and the stock.

8.- A paper stock slottin machine comprising a revolving member aving an Qannular recess at one end, a ring of less diameter than said member fitting within said recess and having a n arrow peripheral groove therein, a second ring of substantially the .same diameter as said member seatediagainst saidirst named ring, and forming with the opposite wall of said recess an annular slot, means for locking said rings together and allowing 4their convenient removal and access to the edges of said recess, a second revolving member, a knife mounted thereon the bottom of.

adapted to enter said slot and having longitudinal edges to cooperate with the' edge of said recess'and the opposite edge of said second ring to makea shear cut, and said -knife having a transverse cutting edge provjecting beyond said longitudinaledges-and cooperating with thel bottom of said slot to sever the tongue formed by said knife. on both sides of the groove in said iirst named ring.

9. A paper stock slotting machine comprising a revolving member having peripheral slots therein provided without/tin and comparatively narrow grooves in t e bottoms of said slots, a second revolving member, knives mounted thereon adapted to register with said slots and make a shear'cut of the stock with tlie-ed es of said slot, the tongues cut out by sai knives being severed upon both sides of said g'ooves and drop ing` 'into said grooves, and

the-stock by frictional engagement with the walls of'said slots, and clean-out devices operatingin said grooves to remove said tongues 10. A paper s ck slotting machine comprising a revolving member having a peripheral slot provided with cutting e ges, a'second revolving member, a knife mounted thereon between which and thje edges vo saidv slot the paper stock is s heared to 'form a tongue, andsaid knife havinga transverse cutting ed e projecting outwardly beyond its shearing e ges-and edges cooperative with the bot-A toni of the slot of the first mentionedrevolvi iis eingremoved rom y ing member and adaped to partially 'sever said tongue from the stock. j

11. A paper blank slotting machine comprising a revolvingmember having a peripheral slot provided With cutting edges, a second revolving member, a knife mounted thereon and adapted to enter said slot and cooperate With-the edges thereofto make a shear c ut in the blank fed between them, and means projecting beyond said shearing edges and cooperating With the bottom of said slot for partially severing thel tongue cut from said ,slot at its junction With'the blank.

12. A paper stock slotting machine comprising a revolving memberhavi-ng a peripheral slot provided with cutting edges, a second revolving member, a knife mounted thereon between which and the edges of said slot the paper `stock is sheared to form a tongue, said knife having a transverse cutting-edge adapted to enter said slot and cof operate with the bottom thereof to partially sever said tongue transversely of the stock, and a'yielding means interposed between said revolving members to compensate for variation in the thick-ness of the stock.

13. A paper stock slotting device, comprising a rotatable member havinga peripheral slot, a second rotatable member having a radial blade, as an annular segment slidably fitting within the slot of the first member, said segment having a transverseA peripherally raised portion, as a cutting edge adapted to engage the bottom of the slot, the edges of said slot and blade cooperating to shear th material as the members are rotated'. 14. A paper stock slotting device, comprising a rotatable member having a peripheral slot, a second rotatable member 4having a radial blade, as an annular segment slidably fitting Within the slot of the first member, said segment having a transverse peripheral- 1y raised portion, as a cutting edge adapted y:,aevasaa to engage the bottom ofthe slot, the edges of said slot and blade 'cooperating to shear the material as the members are rotated, and a band of resilient material'surrounding one of said rotatable members.

15. Akdevice of the class described, comprising a disk having la terminal counterturned portion, an annulus seated upon said portion and having a peripheral groove there.- in, and of less diameter than the disk, a second annulus of the same diameter as the disk, also seated upon said portion and abutting said first annulus, and a third annulus clampingly. securing the annuli, and said annuli being substantially rectangular in cross section. v

16. A device of the class described, comprising a disk having a peripheral circumferential groove, said groove having a circumerential dove-tail groove in its bottom, a pluralityy of segmentalannular shearing elements circumferentially adjustable in said first-groove and projecting beyond the periphery ot' the disk, and having clamping portions slidable in the dove-tail groove, the peripheryA of .certain of said shearing elements' having a peripherally raised transverse portion providing a transverse cutting edge.

17. A device of the class described, comprising a rotatablecutter disk having a peripheral groove therein, a second cutter disk having a circumferential blade, said blade and groove cooperating to shear the stock,

said blade having a transversely disposed cutting edge adapted to engage the bottom of the groove, and said blade circumferentially adjustable, and said blade and disk havinggraduations for obtaining accurate circum.

ferential adjustment of the blade.

In Witness vvhereof, I have hereunto set my hand this 26th day of December, 1923.

v EDWIN G. STAUDE.

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