US988578A

US988578A - Paper-cutting mechanism.

Info

Publication number: US988578A
Authority: US
Inventors: Alfred Laukhuff
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-08-23
Filing date: 1910-08-23
Publication date: 1911-04-04
Anticipated expiration: 1928-04-04

Description

A. LAUKHUPP. PAPER CUTTING MECHANISM.

APPLICATION FILED OUT. 23, 1908. RENEWED AUG. 23, 1910. 988,578.

v Patented Apr. 4, 191 1.

39 7 A l, .1 Lb Q entoz 4/ I aiku" UNITED scares PATENT onni ALFRED LAUKHUFF, OF DUISBURG, GERMANY.

PAPER-CUTIDING Specification of Letters Patent. Applioationfiled October 23, 1908, Serial No. 458,177. Rencwed'August 28, 1910. Serial No.

ill/lECHANISM. H E D m Patented Apr. 4, 1911.

'io'dll whom 2t may concern; Be it known'tha't I, ALFRED Lauitnurr, a

subject of the Emperor of Germany, and

- or continuous lengths of the material into sheets or short lengths, as required in various machines for manipulating paper and like material.

An object of the invention is to provide a mechanism of the character referred to in which shall be combined high speed and great accuracy and precision. both as to the sizes of the sheetsformcd and as to the character of the cutting operations.

Other objects of the invention are to provide a mechanism by which the lengths of the sheets may be easily and accurately regulated; which shall be adapted to cut sue" cessive sheets of ditl'ercnt lengths: which shall serve sinmltaneously to advance the Web and cut it into sheets; which shall be capable of marking the sheets. if desired; and which mechanism shall be simple, durable and economical in construction, with parts few and compactly and most ciliciently arranged, and not apt to get out of order.

' These and other objects of the invention will in part be obvious and in part be made clear from the following description.

My invention consists in the novel parts. improvements, combinations, and features of construction herein shown and described.

' In the accompanying drawings, which are referred to herein and form a part her-cot". is illustrated one emliiodimeut of my invention, the same serving in connection with the description herein to explain the principles of the invention.

.015 the drawings: Figure l is a vertical ce'ntralse'ction of a paper cutter constructed in accordance with my invention, parts bcing shown in pe-rspectivetl ig. is a front elevation of'the same, looking from the right of Fig. 1; and Fig. 3 a plan of the same.

' A mechanism for cutting sheets from ing member, means .i'or supplylng a web to.

said member, a plurality ofwcb clamping members mounted on said wcb-carryiiu, member, aplurality of members mounted on said clamping members for cutting the Web transversely, means for moving said clamping and cutting members out of the path of the web to the web-carrying memher, and means for regulating the lengths of the sheets. According to another feature of my invention, means are provided for marking the sheets. According to certain other features of my invention, said webcarryinp; member comprises a pair of segmental rotating members; the means for regulating the lengths of the sheets comprises a pair of pins adjustably mounted in Ira mes integrally connected to said segmental Web-carrying membersf'aml' said marking means comprises die members respectively mounted on the clamping and web-carrying members. I

Referringnow in detail to the drawings, the embodiment of the invention illustrated comprises a main body portion. '1 adapted to receive the paper or other material to be out. While the paper-receiving or web-- carrying member oi. my machine may be tions are adapted to receive the web and.

to act as beds on which the web is clamped and thus caused to advance and at the same time be properly presented to the cutting mechanism. In the embodiment. of the in; vcntion illustrated the said segmental portions have recesses t) and 7, in which are located cuttin members, to which further reference will e hereinafter made.

So far as certain features of my invention are concerned, any suitable means may be provided for clamping the web, supplied to the segmental web-carrying members 4 and 5 by any suitable means, as by rollers 8 and 9. In accordance with one feature of my invention, however, the clamping means con'iprises clamping members mounted on the web-carrying member. Preferably and as shown, the clamping members consist of a pair of clamping arms 10 and 11. \Vhile various provisions may be made for moving the said clamping arms in various directions and Ways out of the path of the web to the web-carrying member, see Fig. 2, preferably and as shown, the clamping arms 10 and 11 are mounted on pivot shafts 12 and 13, respectively, said pivot shafts being mounted in bosses l t and. 15, projecting from said main body portion 1, and formed attheir rear portions into gear segments 16 and 17, which respectively engage with racks .18 and 'ihescracks are formed on or secured to slides 20 and 31, loosely fitting in radial guide. slots formed in the main body portion 1. l he said'slides are constantly drawn toward the shaft 2 by springs 22 and 23, which action of the springs has the effect of moving the clamping arms outwardly away from the segmental web carrying portions 4 and 5, thereby enabling the arms to the web, as shownby the position of the arm 11 in Fig. 1.

While the inwardor clamping movement of the arms 10 and 11 may be accon'iplished in various ways, in the preferred en'ibodiment of the invention illustrated, :rstatiom ary cam 24: is irovided, the periphery of which, preferably and as shown, is formed with two

concentric portions

25 and 26 and with two

intermediate portions

27 and 28, which, respectively, have the effect of moving the clamping: arms inwardly and out wardly. Upon the periphery of this cam .24 bear antifriction rollers 2?), mounted on the respective slidemcmbers Q0 and 21. it will be apparent that as the segn'iental web-carrying members 4. and 5 revolve with the shaft 2. carrying with them the said rollers bearing upon the periphery of the said cam 24-, the arms 10 and 11 will be held in clamping relation with the said respective segmental web-carryii'ig members 4c and 5, while. the rollers 29 and 30 are traversing the high (om-cntric portion 25 of the cam 24; and that, as the said rollers traverse the low concentric portion 26, the slide members 20 and 2] will have been drawn nearer the axis of the shaft- 1 by the action of the springs 22 and 23, the arms 10 and 11 having been caused through the operation of the

gear members

16, 18, and 17, 19, respectively, successively to assume the position shown by the lever 11 in Fig. 1, as heretofore alluded to, the arms successively moving to said position, while traversing the portion 28 of the .cam, and returning to the clamping position while traversing the portion 27.

In accordance with one feature of my invention, means are provided for cutting the sheets from the web, as it is advanced by the segmental web-carryingmembers; While these cutting means may vary in form, number. and location, and in method of operation. preferably and as shown, two cutting devices are carried by the rotating webcarrying member, one cutting device for each segment of said, member. These cutting members, as shown, consist each of relatively movable members or blades, cutting in shear fashion. One member of each cutting device, preferably, is rigidly mounted on the corrcs mnding one of the arms 10 and 11, said cutting blades being numbered 3L and 32, respectively. The other members :32}, and 34, preferably and as shown, are mounted on or formed by the inner arms of lu'llwrault levers 1-55 and 30, which are preferably mounted on the pivot shafts l2 and 1 3 and whose outer arms 3i and 39 carry antifriction rollers 39 and it), which during their travel with the rotating segmental welrcarryi'ng portions 4 and 5 bear upon the inclined surface of a secondary cam 41, suitably located on the face of the cam bl. As will be apparent, when the rollers 39, are successively brought into bearing relation with the said inclined surface of the cam ll, the bell-crank lovers to which they, are attached are successively actuated so that-the

cutting members

33 and 34 are.

the respective rollers 3.) and 40 have passed the cam ll, by the pull of the springs 42 and i respectively attached to the body portion 1 and to the outer arms 3? and 38 of said luill-cranl; lovers.

in accordance with certain features of my invention, means are provided for regulating the lengths of the sheets to be cut. \Vhile various means may be provided for this purpose. in the preferred embodiment of the invention illustrated

pins

44 and 45 are provided, the same being respectively fastened in slots 46 and47 in the frame portions 48 and Eli) of: the main body portion 1, said frame portions, preferably and as shown, being at. right angles to ll 2 segmental web.- carrying members t and 5 and extending outwardly any desired distance. It will be Qapparent that, as these

pins

44 and 45 are set in said slots, whether near or farther from the axis 1 of the shaft 2, so will the length of the sheet to be cut vary. It will also be apparent that said pins may be set at different distances, respectively, from said axis, with the result that the successive sheets will be cut of different lengths. It will be obvious that by varying the number While in the process of cutting. To this end,

my invention contemplates the employment of marking mechanism, which is combined and coia'pcrates with the clamping and cutting means. In the embodiment illustrated the marl'n'ng'means consist ofthe (he memhers 50-and 51, preferably mounted on the clamping arms and 11,'respectively, and

which die members emboss or otherwise mark die

members

52 and 53 being'provided, when desired, in the segments 4 and 5, see Fig. 'l. .VVl'lllO the operation of the a iparatus will be clearly apparent from the torcgoing (lescription, it may be here observed that said apparatus is adapted to form part of or be used in connection with other machines for various purposes, as bag and envelop making machines.

It will be seen that by reason of the fact that the cutting mechanism travels with the web during the cutting operation, ample time is given to effect the cutting operation, this being conducive to both speed and accuracy; IIIOI'QOVBI, the character of cutting mechanism, which thus permitted to be employed, insures a clean, accurate cut of the material at the precise point or points dosired. It will becbserved also that the web firmly clamped at points adjacent to the cutting mechanism, and that the cutting op eration effected while the paper is held taut and controlled at both sides of the cut ting poin s. Other advantages will b. ap-

. parent to those. skilled in the art.

invention and without sacrificing its chief advantages.

1- claim: I

'l. A mechanism for cutting sheets from webs inclndin incombination, a rotary web- .carrying member, means for supplying a web to said member, web-cutting means mounted on said member,sa1d cutting means includiug'a member movable out of the path of the web to the web-carrying member and a second member movable to perform the cutting operation, and means for operating said cutting members.

2. A mechanism for cutting sheets from webs including in combination, a rotary webcarrying member, means for supplying a web to said member, welrcutting means mounted on said member, said cutting means including a member movable out of the path of the web to the web-carrying member and a second member movable to perform the cutting operation, means for operating said cutting members, and means forrcgulatiug the length of the sheets.

3. A mechanism for-cutting sheets from webs including in combination, a rotary webcarrying member, means for supplying a web to said member, a plurality of webcutting means mounted on said member, each of said cutting means including a member movable out of the path of the web to the web-carrying member and a second member movable to perform the cutting operation, and means for'opcratin said cutting members.

l. A mechanismfor cutting sheets from webs including in combination, a rotary webcarrying member, means for supplying a web to said member, web-cutting means mounted on said member, said cutting means including a member movable out of the path of the web to the web-carrying member and a second member movable to perform the cutting Opelllllfill, and fixed cams for operat ing the respective cutting members.

A mechanism for cutting sheets from webs including in combination, a rotary wclrcarrying member, means for supplying a web to said member, a plurality of webcutting means mounted on said member, each oi said cutting means including a member movable out. of the path of the web to the .eb-carr ving member and a second member movable to perform the cutting operation, means for operating said cutting men'ibcrs. and means for independently regulating the lengths of the successive sheets. i

(3. A mechanism for cutting sheets from webs including in combinatiorna rotary webcarryiug member, means for sluiplying a web to said member, webclampin; r means mounted on said member, said clamping ins-ans ineludiinz' a member for cutting the web transversely, and a member for clamping the web between the cutting member and the websupplying means, and means for naming said clamping means and cutting member out of the path of the web to the wcb-carrying member.

7. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying mcml'ier, means for supplying lltl a web to said member, a plurality of webclamping members mounted on said web ber.

carrying member, a plurality of members mounted on said clamping members for cutting the web transversely, said Web-clamping members acting on the web between the cutting members and the web-supplying means, and means for moving said clamping and cutting members out of the path of the web to the web-carrying member.

8. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, meansfor supplying a web to said member, a plurality of Webclamping members mounted on said webcarrying member, a plurality of members mounted on said clamping members for cutting the web transversely, said web-cla11'1ping members acting'onithc web between the cutting members and the web supplying means, and a fixed cam for moving said clamping and cutting members out of the path of the web to the Web-carrying mem- 9. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, means for supplying a web to said member, web-clamping means mounted on said member, means for cutting the web, said cutting means including a member mounted on said clamping means and a second member located within said web-carryil'ig member, means for moving said clamping means out oi the path of the web to the web-carrying member, and means for moving said second cutting member to perform the cutting operation.

1.0. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, means for supplying a web to said member, a plurality of webclamping means mounted on said member, a plurality of means for cutting the web, each of said cutting means including a member mounted on one of said clamping means and a second member located within said webcarrying member, means for moving said clamping means out of the path of the web to the web-carrying member, and means for moving the respective second cutting members to perform the cutting operation.

11. A mechanism for cutting sheets from webs including in combination, a rotary webcarrying' member, means for supplying a web to said member, web-clamping means mounted on said member, said clamping means including a member for cutting the web transversely, means for moving said clamping means and cutting member out of the 'path ofthe web to the web-carrying member, and means for regulating the length of the sheets.

12. A mechanism for cutting sheets from Webs including in combination, a rotary web-carrying member,'means for supplying a web to said member, web-clamping means mounted on said member, said. clainping means including a member for cutting the web transversely, means for moving said clamping means and cutting member out of the path of the Web to the Web-carrying member, and means for independently regulating the lengths of the successive sheets.

13. A mechanism for cutting sheets from webs including in combination, webcarrying member, means for supplying a web to said member, a plurality of webclamping member mounted on said webcarrying member. a plurality of members mounted on said clamping members for cutting the web transversely, means for moving said clamping and cutting members out of the path of the web to the wcb-carrying mei'nber, and means for independently regulating the lengths of the successive sheets.

14. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, means for supplying a web to said member, web-clamping means mounted on said member, means for cutting the web, said cutting means including a member mounted on said clamping means and a second member located within said web-carrying member, a fixed cam for moving said clamping means out of the path of the web to the web-carrying member, and a secondary cam fixed on said first "cam for moving said cutting member to perform the cutting operation.

15. A mechanism for cutting sheets from webs including in combiantion, a rotary web-carrying member, means for supplying a web to said member, web-clamping means mounted on said member, said clamping m *ans'ineluding a member for cutting the web transversely, and a member for clampin g the web between the cutting member and the web-supplying means, means for moving said clamping means and cutting member out of the path of the web to the web-carrying member, and means located on said clamping means for marking the sheet.

it). A mechanism for cutting sheets from webs including in combination, a. rotary web-carrying member, means for supplying a web to said mei'uber, web-clamping means mounted on said member, said clamping means including a member for cutting the web transversely, and a member for clamp ing the web between the putting member and the web-supplying means, means for moving said clamping means and cutting member out of the path of the web to the web-carrying member, andv means located on said clamping and wcb-ca' ii ,ingmeans for marking the sheet. 5, ,7

17. A mechanism for cutting sheets front webs including in combination, a rotary segmental Web-carrying member, means for supplying a Web to said member, web-clamping means mounted on sand member and comprising an arm having a gear segment" a rotary coiiperating with a spring-controlled rack connected to a roller, said clampin means including a member for cutting. he web transversely, and a fixed cam u on which said roller rotates whereby sai clamping means and cutting member are moved out of the path of the Web to the Web-carrying member.

18. A mechanism for cutting sheets *from webs including in combination, a rotary segmental web;carryin member, means for supplying a web'to said member, web-clamping means mounted on said member and comprising a pivoted clamping arm, a ear segment on said arm, a sprln'g-contrdlled rack meshing with said segment, means for cutting the web,said cuttin means including a member mounted on sai clamping means "8T1d a second member located within said web carrying member and mounted on a lever on which said second member is mounted, a fixed cam for operating said rack whereby said clamping means and said firstnamed cutting member are moved out'of the path of the web to the\vv eb -carrying mem ber, a second cam fixed on 'the'iaoe of said first cam to operate said'lever whereby said second cutting member moved to perform the cutting operation, and a plurality of pins adjustably secured in said web-carry ing member for regulating the length of the sheets.

19. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, a cutter member and a clamp member both mounted on said webcarrying member, and independent operating means for said cutter and clamp memers.

20. A mechanism for cutting sheets from webs including in combination, a rotary web-carrying member, means for supplying 4 a web to said member, a cutter member and a clamp member both mounted on said webcarrying member, and means for independently moving said outterand clamp members out of the path of the web to the web-carrying member and independently operating them to perform their respective functions.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED LAUKHUFF. Witnesses:

Louis VANDORY, P. WAL'i'nRLoHmr.