US852663A - Feeding and cutting attachment for wrapping-machines. - Google Patents

Description

PATENTED MAY '7, 1907.

D. T. IGOU. v FEEDING AND CUTTING ATTACHMENT FOR WRAPPING MACHINES.

APPLICATION FILED 83m. 20, 1906.

.4 SHEBTSSHEET 1.

I i ly? ATTORNEY No. 852,663. X I PATENTBD MAY 7, 1907.

' D. T; won. FEEDING AND GUTTING ATTAGHMENT FOR WRAPPING MACHINES.

APPLICATION FILED SEPT. 20, 1906. I

QSHEBTB-SHEET 2- mwwvw Lea -E5 INVENTORf ATTORNEY. Y

'PATBNTED MAY 7, 1907.

D. T. IGOU.

FEEDING AND CUTTING ATTACHMENT FOR WRAPPING MACHINES.

APPLICATION FILED SEPT. 20, 1906.

4 SHEETS-SHEET 4.

WITNESSES INVENTOR. ,EHIZZZS' like,

ATTORNEY. I

UNITED STATESHPATENI omen.

DENNIS T. Ieou, OF SPRINGFIELD, OHIO, AssIoNOR ".TO THE STANDARD OANDY MACHINE COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

FEEDENG AND CUTTING-ATTACHMENT Foe WRAPPING-MACHINES.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed September 20, 1906. Serial No. 336,417.

To all whom it may concern.-

Be it known that 1, Denn s T. icon, acitizen of the United States, residing at 7 Springfield, in the county of Clark and State of Ohio, have invented certain'new and useful Improvements in Feeding and Cutting Attachments for Wrapping-Machines, 'of which the following is a specification, reference being had therein to the accompanying drawings' This inventionrelates to machines'for forming and wrapping confections and other articles, and more particularly to paper-feeding and sheet-forming mechanism, and has for its object to provide a mechanism which will act to draw a web of paper .suitable for forming wrappers, preferab what is known as Waxed or paral'lin paper, from a continuous roll, feeding the same forward rapidly and smoothly, severing it into sheets of the proper size to form wrappers, and deliveringthese the up or one of the first pair of pa or feed-.

ing rol s, detached; Fig'. 4 is an en view of the same; Fig. 5 is a similar view to Fi 8, illustrating the lower one of the first pair ofpaper feed rolls; Fig. 6 is'aii end view of the same; Fig. 7 is an enlarged detail view of the gripping jaws, viewed in elevation from the side opposite to that shown in Fig. 2; Fi 8 is a plan'view of what is shown in Fig. 7; is an elevation of the u per one'of the second pair of paper feed rol fsg Fig. 10 is an end view of the same; Fig. 11 is an elevation of the lower one of the second pair of paper feed rolls; Fig. 12 is an end view of the same; Fig. 13 is a view of the shaft which carries the feed roll shown in Figs. 9 and 10; the same being shown detached and with its spring and thrust collar mounted thereon; Fig. 14 is an elevation of the paper knife, detached;

Fi 15 is an end view of the same; Fig. 16 is {a detail. view of one ofbolts carried by paper and its bearings may said knife; Fig. 17 is a similar view of the corresponding sleeve nut; Fig. 18 Is an edge view of the cam which controls the paper knife Fig. 19 is a face view of thesame; Fig. 20 is a side elevation of the feed roll car rying the cutter; Fig. 21 is a longitudinal section taken vertically through Fig. 20; Fig.

22 is a transverse section, taken on the line A A of Fig. 20; and Fig. 23 is a transversesection taken on the line B B of Fi 20.

In the said. drawings the mec banism is shown supportedon a suitable base 111,

which supports a bearing bracket 113, comprising parallel side members 1 14, which'support the various moving arts.

, The pa er, the'web o which is indicated by the re erence numeral 115, is supplied in ,the form of a roll 116, which is secured on a shaft 117 by means of clamping disks 1 18 and nuts 119, so as to rotate in unison with said shaft. The shaft117 is mounted in bearings 120, which are split or divided, as shown in Figs. 1 and 2, the two parts being connected by a screw 121, by means of which the bearings may be clamped upon the shaft 117, so as to act as a brake upon said shaft, and thus give the necessary tension to the paper. The

bearings 120 fit removably upon inclined studs 122, shown in dotted lines in Fig. 2,

projecting from the bracket members 114,

the construction being such that the roll of e readily removed and replaced.

' The web of pa er, after it leaves the, roll,

passes through t efeed rolls, of which two pairs are shown in the'present instance, although a greater number of pairs of feed rolls may be employed if desired. The first pair of feed rolls through which the paper passes are shown in detail injjigs. 3 to 6 of the dr awings, inclusive. .The lower roll of thispair, indicated by thereference numeral 123, gs a cylindrical roll,secured upon a shaft 124, the 9 5 bearings of which aremounted in the memas to cause the rolls. to rotate in unison. The

- feed roll 126 is grooved circumferentially at Lfl the purpose.

its central portion, and in the groove thus formed there is located a bandor covering 130, of yielding material having good gripping qualities, leather being preferable for The feed roll 126 is also cut away or flattened longitudinally on its oppo site sides, as indicated at 131 and 132, and

' these flattened portions are utilized for the securing devices which hold the leather covering to the roll. The meeting ends of the leather are secured on the flattened surface 132 by screws or nails 133, while the portion of the leather which lies on the flattened surface 131 is secured in position by means of a fastening strip 134 and screws or nails 135. The portion of the leather covering between the flattened sidesjform feeding surfaces 136. The construction is such that the several pairs of feed rolls feed intermittently, and, in the present instance, where only two pairs of. feed rolls are employed, each pair of feed rolls isprovided with two feeding surfaces, the number of feeding surfaces employed being preferably identical with the number of pairs of feed rolls, and the feed rolls having their feeding surfaces so arranged that, while one of the pairs is always engaged with and feeding forward the paper, each pair in turn releases its grip upon the paper at intervals.

' The reason for this mode of construction and operation lies in the fact that it is extremely diiIicult to feed a web of paper forward in a straight line with feed rolls in constant contact therewith, owing to the inequalities'in the paper, inaccuracies of the rolls and their adjustment, and other causes. When the paper once begins to depart from the proper ine of feed, it tends to increase the error,

particularly where more than one pair of rolls 'is employed, and the mechanism is apt to 010 and break. By employing a plurality of eed rolls in intermittent alternating contact with the paper, each pair of rolls tends portunity to increase. The accuracy of the feed is further maintained by reason of the fact that only a relatively narrow area of the. central portion of the web is actually gripped, thereby reducing theliability of inaccurate feeding in proportion to the reduction of the surface engaged.

Referring now to the second pair of feed rolls, the lower roll, indicated by the reference numeral 137, is substantially cylindrical in. form, and is mounted on a shaft 138, the bearings of which are vtrticall ndyn ltablc in the members 114 by means of screws 139, as in the case of the bearings of the shaft 124. The roll 137 is provided on its outer surface witha longitudinal slot or groove 140, to receive. the knife carried by the cooperating roll, and on each side of this roove there is located a gripper 141, preferably of leather, extending longitudinally of the roll parallel with the slot, These grippers,with two similar grippers on the cooperating roll, serve to grip the pa or on each side of the line of cut and hold t e same firmly while it is being severed. The upper one of the second pair of feed rolls, indicated as a-whole by the ref erence numeral 142, is mounted upon a shaft. 143, to which it is secured by a pin 144, or in any suitable manner. The shaft 143 has its bearings in the members 114, and is provided with a gear 145, which meshes with a similar gear 146 on the shaft 138 of the roll 137,40 cause the two rolls to rotate in unison. The

roll 142 is circumferentially grooved at its central portion to receive a covering of leather or the like, indicated at 147, the same being similar to the leather covering 130 of the roll 126, and being secured in a similar cess in which the leather is fastened is-ll attened at each end of said groove or recess, which does not extendentntely around the roll in this case, and the ends of the leather are turned in at these flattened portions and secured by fastenin devices 151. That portion of the roll whic 1 lies below the lcathcr'in the position of the parts shown in Fig. 10 is of less diameter than the'maximum diameter of the roll, including the leather'covcring, sothat, in this case also, there areformed two feeding surfaces 152, with intermediate nonfeeding surfaces, as in the case of the upper rollof the first pair. It willbc understood that the two upper rolls have their feeding surfaces so arranged relatively to each other that one pair of rolls grips and feeds the paper while the other pair releases the paper. It will also be understood ithat the leather covering is somewhat thicker than the depth ofthe seat inwhieh it is located, so that the The roll 142 is flattened longitu'difeedingiis accomplished by those port-ions of I said covering which extend out beyond the body of the roll, said body having no feeding functions. That portion of the body of the roll 142 which is diametrically o )posite to the flattened portion 148 is )I()Vl(l((l with a lon itudinallyextending ra ial slot 153, on. eac 1 side of which are located parallel longituifinally-extending grippers 154, which cooperate with the similar grippers 141 of the" roll 137. in the slot 153 there is located a knifel'55, which may be projected from and withdrawn into the roll by mechanismproa reduced threaded shank 158.

until the shoulder of the head hears rig-most said sleeve and the head of the bolt.

seas-st pins or bolts are constructed in. the manner shown in detail in Figs. 16 and 17 of the drawmgs. Each com )11585 a bolt proper 156, having a large cylindrical head 157 and This shank '0 d1 *1 m; I 1-,. 1s passe t irouga an aperture loo in. t to \m i.

one Side of the knife. A out 160, in the f rm of a sleeve threaded internally, then screwed upon the projecting threaded shank until the body of the knife is gripped between its shown in Fig. 15, the structure then presents the appearance of pin projecting equally on each side of the knife. These pins extend into inclined. slots 161, formed in the bottom Walls of recesses 162, located on opposite sides of the knife slot- 153 in the body of the roll 142.- The knife is provided with a projction 163 on its back, which is acted on h y a spring to throw the knife outward into cut ting position, While the end 1.64 of the knife projects beyond the body of the roll, to he acted upon by a cam to move the knife in Ward against the action of said spring. The spring, indicated by the reference numeral 165, is coiled upon the shaft 143, which is reduced for a portion of its length to form a shoulder 166, against which one end of the spring abuts. The other end of the spring abuts against a thrust collar 167, fitted to slide longitudinally on the shaft, its movement being limited by a stop pin or projection 168, The shaft is slotted longitudinally at 169, as indicated in dotted lines in Fig. 13, andthe projection 163 on the knife extends into-this slot in the path of the collar 167, which bears against it. Thus the spring 165 constantly tends to move the knife to the left with respect-to the roll, in the position of the roll shown in Fig. 9, and the inclination of the slots 161 is such that this movement of the knife to the left causes it to project outward beyond the body of the roll 142, so as to enter the slot 140 of the cooperating roll 137, and thereby sever the 'iaper.

As already stated, the pa or is held firmly gripped on each side of the ine of cut during this operation by the gripping projections 141 and 154, so that the out is effective. Moreover, themoveinent of the knife agonal, giving a draw-cut, which is do; The position of the knifeat the time when it is projected from the roll to act, and withdrawn into the roll when notgrcting, is determined by a fixed cam 170, secured to one of thebearings of the shaft 143, in a position such'that the projecting end 164 of the knife is held against said cam by the action of the spring 165. The can: is of a shape such as to project the knife and sever the web at the proper moment. Simultaneous motion is imparted to both pairs of feed rolls from a gear 171, which meshes with the gears 146 and 128' of the two lower rolls, and which is itself driven by means of a hovel gear 172, formed on its inner face and meshing with a bevel pinion 17 3 on the upper end of a vertical shaft 171, mounted in bearings 175 on the base .111. I

After passing the feeding rolls, the paper travels bot-ween guides 181 and 182 above and below the same, the severed sheets heing drawn along by means of travelii'ig gripping jaws which engage the leading edge of the sheet and carry it positively away from the rolls. The operating mechanism of those gripping jaws comprises a shaft 183, mounted in suitahle hearings in the members 114, and having a n 184 at one end, which meshes with the gear The other end of the shaft is provided with a crank 18.1, to which is pivoted one end of a connecting rod 186. The other end of said connecting bar is pivoted to a bar 187, which slides longitudinally in guides 188, mounted on one of the members 11 The connecting rod 196 is pivoted to the rear end of the slide-bar 187, and. the forward end of said slide-bar is doilected inward, as shown at 189, and is proided with bearings 196, in which are mounted the shafts 191 and 192 of the gripping jaws 193 and 194. These shafts are provided respectively with intermeshing gears or gear segments 195 and 196, so that the gripping jaws move simultaneously toward and from each other. The shaft 191 of the upper gripping jaw has secured thereto, on the end thereof opposite to that on which the gripping jaw 193 is mounted, an arm 197, provided at its free end with a laterally extending pin 198. A coiled'spring 199 has one of its ends connected to the pm 1921, its other end being secured at 200 to the slidebar 187. The arrangement of the'coimections of the ends of this spring is such that it acts either to hold the gripping jaws open, as shown in Fig. 7, or to hold them closed, according to which side of the center of the shaft 191 said spring lies upon. In other words, the spring is neutral when the connection 290, shaft 191 and pin 198 are in alinement. hen the pin 198 moves downward from this position, the spring forces the jaws open, and when the pin 198 moves upward from this alinement, the spring forces the jaws closed. The movements of the pin 198, and, consequently, the opening and closing of the jaws, are determined. by two fixed cams, 201 and 202, located in the path of the pin 198. I As the slide-bar 187 moves to the left in Figs. 1 and 2, with the gripping jaws P "1194 it passes beyond the line pass B14511" AV'AiLAbLE CUPY gripping jaws together wit-h the forward margin of the paper between them. The knife having operated to sever the web, the direc- 'tion of the travel of the slide-bar is reversed,

and the gripping jaws move in the opposite direction, (.varrying with them the severed sheet. its the slide-bar approaches the limit ot its movement. in this direction, the pin lfltw comes into contact with the under surface of the inclined am 202, and said pin is forced,

dowi-iward until it reaches a position where, the spring lfltl'acts upon it in such a wavelet: to throw open the gripping jaws, tliereh Preleasing the sheet of paper at the endotthe stroke of the gripping jaws, which latter i hen returns to grip the next sheet and earrv it to its destination.

[wish it to b understood that l do not des sire to be limiteif to the exact details of construction shown and described. for obvious modifications will occur ton person skilled in the art.

Having thus fully-described my invention, what l claim as new and desire to secure by Letters Patent, isz

i. in a paper feeding mechanism for wraps ping machines and the like, a i'oll support comprising a. base having projecting studs. bearings removablv fitting said studs, slit through their hearing apertures, and provided wit-h clamping screws for drawing together the slitted parts. and a. roll supporting shaft mounted to rotate in said bearings and provided with means for lioldinga rollof paper thereon, substantiall as described;

2. A paper feeding mechanism for wrap ping machines and the like,.coniprising a plu rality of pairs of feed rolls, each pair constructed and arranged to alternately grip and release the papery-the gripping and feeding action of the respective pairs being successive, substantiallyas'oesci'ibed. I

3. ln a paper ieeding mechanism for wrapping machines and the like, a plurality of )airs of iced rolls. each iair constructed and l arranged to alternately grip and release the paper, the respective pairs of rolls acting successively upon the paper, one pair at a time, to ive the same a continuous feed, substantiall v as described;

-t. ln'a paper feeding mechanism for Wrapping inacliines andv the like, a pair of feed rolls, one of which is provided with a gripping and feeding surfacerestricted to a relatively narrow central portion of the same and a knife extending the full length of said roll, substantially as describet'l.

i). l n a paper feeding mechanism for wrapping iiiachines and the like, a pair of feed rolls, one of which is circumferentiallv grooved at its central portion and prov ded with a hand or covering of grippingmaterial, such as leather, seated therein to form a gripst-rips arranged to grip the paperon pin surface and a knife inonnted in one of sait rollers and extending the full length thereof, substantially as described.

(5. in a paper feeding mechanism for wrapping machines and the like, feed rolls ar-' ranged in pairs, one roll of each pairbeing provided with alternate gripping and release, portions, the gripp ng portions of the respec-L tive pairs being arranged to operate successively, one at a time, to give the paper a. continuous feed, substantially as described.

7. in a paper feeding mechanism for Wrapping machines and the like, feed rolls 31- ranged in pairs, one roll of each pair being circninterentiallv grooved and.longitudinally llattent-al, ii. gripping hand seated in the circumfcrential groove, and fastening devices" for securing the band to the roll at the llat'- tened places; substantially as described.

5. in a paper feeding mechanism for wrapping machines and the like, a plurality'of pairs of feed rolls having alternating gripping and release surfaces and arranged to successivelv act upon the paper, one of the rolls of the last pair having a knife mounted therein .and adapted to be pro ected from one of the release surfaces thereof, substantially as described.

t). In a paper feeding mechanism for wrapping machines and the like, a plurality of pairs ol leed rolls having alternating gripping and release surfaces and arranged to successi\'el act. upon the paper, one ofthe rolls of the last pair having a knife mounted therein and adapted to be projected from one of the release surfaces thereof, said roll and its 60- operating roll having grippers arranged to grip the paper along each side of the knife.

.during the cutting operation, substantially as described.

it). in a paper feeding mechanism for wrapping mi'iclunes and the like, a air of feed rolls, one of which is provided wit 1 a 1011- gitudinal radial slot, aknife mounted. to-

move in and out in said slot, and means for projecting the knife beyond said roll when opposite the cot'iperating roll, said cooperati'ng roll being provided with a longitudinal groove to receive said knife, both of said rolls being provided with lon itudinal griplping ioth sides of the knife during the cutting, substam tiallv as described.

it. in a paper feeding wrapping machines and the like, a feed roll having a radial slot and inclined slots: arranged ti'iinsverselv thereto, a knife mounted to slide in the radial slot and having projecniechan ism for tions enga in the inclined slots a s rin actr- F .7 h

ing against the knife axially of the roll to force the same outward, and a fixed ciiimagainst which the knife bears to control the with projections to engage the inclined. slotsthereof, and having a projection extending through the slot of'the shaft and engaged by the thrust collar, said knife extending bevond said roll'at one end, and a fixed'cam located at said end of the roll, against which cam the projecting end of the knife is held by the spring, substantially as described.

13. A paper feeding mechanism for wrapping machines and the like, comprising feed rolls for feeding forward a web of paper,

. means for severing said web to form wrapdie ping sheets, a reciprocating gripper acting to grip the severed. sheet and carry the same v forwardto the place of delivery and a fixed part for actuating saidgripper, substantially as described.

14. A paper feeding mechanism for wrap- ,ping machines and the like, comprising feed rolls for feeding forward a web of paper, guides for supporting the paper beyond said feed rolls, means for severing the web to form wrapper sheets, a gripper acting to seize the severed sheets and carry them forward through the guides to the place of delivery and a fixed part for actuating said gripper, substantially described.

15. A paper feeding mechanism for wrap ping machines and the like comprising a plurality of pairs of feed rolls, one of the rolls of the dast pair having mounted thereina knife whereby the web of paper is severed to form wrapper sheets, and a reciprocating 1 gripper acting to grip the severed sheets and carry them fmward to the place of delivery, substantially as described.

16. A paper feeding mechanism for wrapping machines and the like comprising plurality of pairs of feed rolls, one of the rolls of the last pair having mounted therein a knife whereby the web of paper is severed. to form wrapper sheets, guides lor the paper extending forward from said last pair of rolls, and a reciprocating gripper acting to grip the severed sheets and carry them forward through the guides to the place of delivery, substantially as described.

17. A paper feeding mechanism for-wraparr-insets copy ping machines and the like, comprising a supporting frame or bracket, a roll support, fee-ding rolls, means for driving said feeding rolls, a cutter, a crank shaft, driven in unison With the feeding rolls, a slide provided with a gripper, a link crinnecting said slide with the crank of the crank shaft, and fixed meansfor opening and closing the gripper, substantially as described.

18. In a 'paper feeding mechanism for Wrapping machines and the like, sheet-feeding means comprising a reciprocating slide,

gripping jaws having their shafts mounted therein and geared together to move in unison toward and from each other, one of said shafts being provided with an actuating arm, a spring connecting said arm to the slide and acting to hold said jaws in open or closedposition, and fixed cams arranged in the path of said arm to swing the same over to cause the spring to act in the appropriate direction, substantially as described.

19. In a paper feeding mechanism for wrapping machines and the like, sheet-fced ing mechanism comprising a reciprocating slide, gripping jaws having their shafts mounted therein and geared to move in unison toward and from each other, one of said shafts being provided with an arm hav ing a laterally extending pin, a tension spring connecting said pin and the slide and acting to openor close the jaws whenmoved to one side or the other of the axis of the arm hearing jaw, and fixed rains arranged in the path of the pin and acting to move the same to carry the spring to one side of said axis at one end of thcistroke of the gripper and to the other side of said axis at the other end of said stroke, substantially as described.

20. in a paper feeding mechanism for wrapping machines and the like, a plurality of pairs of feed rolls acting only upon a relativcly narrow central portion of the web of papcr, each pair constructed and arranged to alternately grip and release the paper, the gripping and releasing action of the Itspcrtive pairs being successive to effect a continuous straight feed, substantially as described.

in testimony whereof, I. alliX my signature in presence of two witnesses.

DENNLS T. IGOU.

W i tncsses llAnsin'r l1. I'IAMLTAKER, F. W. SonAnrEn.

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