US1175015A - Die-press. - Google Patents

Description

F. 0. SCHRYBURT.

DIE PRESS.

APPLICATION FILED JUNE 29. 1912.

1 1 75,0 1 5 I Patented Mar. 14, 1916.

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THE COLUMBIA PLANOORAPH ,ClL, WASHINGTON, n. c

F. 0. SCHRYBURT.

DIE PRESS.

APPLICATION FILED JUNE 29. 1912.

Patented Mar. 14, 1916.

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FRANCIS OCTAVE SCHRYBURT, OF OTTAWA, CANADA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

DIE-PRESS.

in which they are employed as clicking machines.

An object of the invention is to improve the construction of clicking machines, particularly with reference to the means provided in such machines for taking care of those portions of the material to be out which project beyond or lie outside of the die block. In such machines it is not practicable to have a die block which presents a cutting surface of very extensive area, since the presser member is supported usually at one side of the block in such manner that it may be moved into operative position over any part of the block, and it is not practicable to support the presser member with sufficient rigidity for an operation at a point very remote from its support. \Vhen op- 1 crating upon skins of considerable area, or

when operating upon cloth in rolls, it is therefore necessary to provide for the support of the portions of the material which are not exposed upon the die block or cutting bed.

According to the present invention, a sup port for the surplus material is so arranged beneath the die block, or cutting bed, that considerable surplus material may be taken care'of and that from this support the material may be drawn up over the rear edge of the bed, that is, the edge of the bed remote from the operator, provision being preferably made for protecting the material from the parts of the machine at the rear of the die block or cutting bed. Y

In the illustrated preferred embodiment of the invention, the support for the surplus material is constituted by a shelf having a rear wall which extends into proximity to the cuttingbed, and an lmportant feature nism and clutch therefor.

Specification of Letters Patent. 7 Patented R1 14, 1916,

Application filed June 29, 1912. Serial No. 706,744.

of the invention is the provision of means for preventing the return movement of the material that has been drawn over the edge of the bed into position to be operated upon, the illustrated means comprising a clamp member which cooperates with the rear Wall of the material supporting shelf.

Other features and important objects of the invention are apparent from the following descriptionand claims when considered in connection with the accompanying drawings.

In the drawings, Figure 1 is a rear elevation View of the machine. Fig. 2 is a cross sectional view of the machine on the line AB in Fig. 1. Fig. 3 is a cross sectional view of the machine on the line 0-1) in Fig. 1. Fig. 4 is a longitudinal sectional detail view of the trussed die-block. Fig. 5 is a plan detail view of the driving mecha- Fig. (3 is a perspective detail view of the clutch operating lever.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 and 2 are respectively the rear and front legs of the machine joined at the top thereof by the flanged side-bars 3, the flanged front bar 4 and the back bar arranged as hereinafter described to support the die-block which is preferablytrussed as hereinafter described.

6 are bars secured between the legs 1 and 2 adjacent the'lower ends thereof.

7 is a front lar extending between the legs 2 adjacent the lower ends thereof.

' 8 is a back bar extending between the legs 1 adiacent the lower ends thereof.

9 is a shelf extending between the bars 6 across the front of the machine. and having the upwardly extending back 10 meeting the back bar 5.

11 are brackets secured to the legs 1v adjacent the top thereof.

12 is a plate having the stud pins 13 extending from the ends thereof through suitable journal orifices in the brackets 11.

14 is a lever fixedly secured to one of the stud pins 13, where it projects beyond a bracket 11.

15 is a forked rest arm secured to the upper end ofone ofthelegs 2.

16 is a hand rod having one end thereof pivttally secured to the lever 14 at 17, and resting at the other end thereof in the fork of the arm 15, whereby the said hand rod and resting upon the set-screws 18, whereby said grid may be adjusted to any desired height. and may further be adjusted to any horizontal position.

20 is a strut extending downwardly from the center of the grid 19. V

21 are lugs extending downwardly from the grid 19 at each end thereof.

22 is a truss rod extending under the strut 20 and at each end thereof through suitable orifices in the lugs'21, and secured therein by the nuts 23, whereby a truss reinfrrcement is made for the grid 19.

24 is a die-block preferably formed of wood. cut across the grain, said blrckcovering the grid 19, and resting thereupon.

25 are set-screws inserted through suita ly threaded orifices in the back bar 5, and abutting one side of the block 24, whereby said blrck may be clamped between the back bar 5 and the front bar 4- as it rests upon the grid. The hide or other strip of leather or other material to have blanks cut therefrom may be placed in a roll upon the shelf 9. and one end thereof carried up the back 10 inside the tiltable plate 12, and between the backibar 5 and block 24, whereby the skin may be drawn over the top of the block 24 to any extent, and the tiltable plate 12 moved to its inclinedposition, as shown in Fig. 2, whereby the upper edge thereof Will press the skin against the back 10. and prevent the same from falling toward the shelf 9. In this manner the skin or other material to be cut may be drawn in position over the back of the block to the top thereof as required for cutting.

26 and 27 are brackets secured to the back bar 5 and the back'bar 8 respectively.

28 is a plunger rod squared in cross section, and having the eye 29 formed at the upper end thereof. The plunger rod 28 isv I slidably arranged in a correspondingly shaped vertical (I'lfiCG extending through the bracket 27 to be operated by a cam disk as hereinafter described.

.30 is a swivel rod .having'the eye 31 formed at the upper end thereof, and extending vertically through a suitable journal orifice in the bracket 26. The swi rel rod 30 is threaded at the lower'end thereof,

. and extends through an orifice in the top of the eye 29, and has the-lock nuts32 and 133 the pulley 49,

secured thereon above and below said eye, whereby the said rod has a'swivel connection with the said eye.

341 are guide shoes extending through the eye 31, and adjusted one toward the other by the' set-screw 35 extending through a suitably threaded orifice in. the topof said eye.

36 is a brace bar extending from the outer end of the under guide shoe to the .rod 30 immediately below the bearing 26, whereby the lower guide shoe is securely braced in position where it extends through the eye.

37 is a presser arrn ext'ending through the eye 31 between the guide shoes .34, said guide shc'es being adjusted against the arm so that it will slide freely therebetween, andat the same time be firmly held in a horizontal poorifices in the forked end 38 of the arm 37, 7

whereby it may be adjusted vertically at the end of said arm, and locked in position by the lock nuts 42.

5L3 are bearing-brackets arranged at the back of-the machine. 7

44 is a shaft journaled in the brackets 43.

45 is a cam-disk having the heart-shaped cam groove 46 formed in one side face thereof, said disk being mounted at one end'of' the shaft 44. v

47 is a stud pin having the roller 48 journaled thereon, said stud pin extending laterally from the lower end of the bar 28,

whereby the roller48 travels in the cam grooye46 to reciprocate theplunger bar 28 and presser head connected thereto as hereinafter fully described.-

49 is the drive pulley rotatably mountedon the shaft el-lbetween the bearings 43, and

having the pin 50 extending laterally from one side thereof. i

51 is a collar fixedly mounted on the shaft 44, and having the lugs 52 and 58 extending therefrom at diametrically opposite points. 54 is a forked arm having the forks thereof extending over the collar 51, and pivotally secured to the lug 53 by the pin 55.

56 is a compression spring inserted between the arm 54: and the lug 52, whereby said arm is spring-held toward the face of tends.

57 is a bearing bracket secured to one side of one of the brackets 43. g

58 is a shaft journaled in the bracket 57.

59 is a cam-arm fixedly, mounted at one end of the shaft 58, and extending on a curve closely against the face of the pulley 4:9-from which the pin50 extends. The

from whichthe pin 50 eX- cam-arm 59 has the end thereof sharpened at 60, and the notch 61 intermediate of the length thereof.

62 is a lever arm fixedly secured to the shaft 58.

63 is a foot pedal supported at the outer end of the arms 64, said arms being pivotally mounted in the brackets 65 positioned on the base of the machine or the floor adjacent the bearings 43.

66 is a cross-bar extending between the arms 64.

67 is a connecting rod connecting the bar 66 with the outer end of the lever arm 62.

68 are spiral springs secured between the arms 64 at the outer end thereof, and the under side of the shelf 9, whereby the foot pedal 63 is springheld to its raised position.

In the operation of the machine, the skin or side of leather is drawn over the dieblock and secured thereon as hereinbefore described. and a blanking die such as used for cutting the soles or different parts of a boot is placed in the desired position on the leather. The presser head is then moved over the die bv swinging the same in the desired direction, and sliding the bar between the guide shoes to extend the proper distance until the presser head or platen 40 is exactly above the blanking die in readiness to press upon the same and cut the blank from the leather. I

The belt connection from asuitable motive power drives the pulley 49 continuously, the pin 50 passing by the forked arm 54 as the arm is against the cam lever 59presting in the notch 61 and when it is desired to reciprocate the presser head to press upon the blanking die. it is only necessary to press the foot pedal 63 downwardly with the foot,

- drawing the lever arm 62 downwardlyrat the outer end thereof, and rocking the shaft 58 to tilt the cam-arm 59 upwardly clear of the forked arm'54, thus allowing the upper end of the forked arm to spring inwardly 'against the face of the pulley, so that the pin 50 contacts therewith and carries the forked arm and consequently the shaft 44 around for one revolution or more, according as the foot pedal 63 is allowed to return to its raised position before the endv of the first revolution, whereby the cam arm 59 is lowered, so that the point thereof passes between the upper'end of the forked arm 56 and the face of the pulley, and moves the forked arm outwardlv from the pulley and clear of the pin 50. With such a rotation of the shaft 44 the cam-disk will of course draw upon the plunger bar and rod to operate the presser head as hereinbefore described.

It must be understood that other forms of clutch mechanism might readily be employed for the purpose of reciprocating the presser head, and I do not wish to confine myself to the form shown in the accompanying drawings.

The manner of reinforcing or bracing the presser arm and swinging the same to any desired position over the die block or entirely clear of the same, enables the die block to be made of sufficient size to accommodate all skins or sides of leather of regular shape, and the presser head being universally adjustable, it may be readily swung clear of the work, in order that the leather may be examined carefully and the blanking die placed on the skin to cut to the best advantage and with the greatest economy of leather. I

What I claim as my invention is:

1. A die press comprising a frame, a die block mounted upon said frame, a reciprocal plunger rod vertically arranged in the rear of said frame, a presser arm extending laterally through the upper end of said plunger rod and slidably arranged therein to move over said die-block, and means to reciprocate said plunger rod to cause said presser arm to perform a pressing operation.

2. A die press comprising a frame, a dieblock mounted upcn said frame, a reciprocal plunger rod vertically arranged in the rear of said frame and having a swivel top, a,

presser arm extending laterally through the swivel top of said plunger rod and slidably arranged therein, a presser head adj ustably secured to one end of said presser arm, and means to reciprocate said plunger rod to cause said presser arm to perform a pressing operation.

3. A die press comprising a frame, a dieblock mounted upon said frame, brackets extending from the rear of said frame, a plunger bar extending vertically through one of said brackets and having an eye formed at the top thereof, a plunger rod extending vertically through the other of said brackets and having an eye formed at the top thereof and thelower end connected to the eve of sad plunger bar to swivel thereon, guide shoes extending laterally through the eve of said plunger rod, a presser arm slidably arranged between said guide shoes, a presser head adjustably secured to one end of said presser arm, and means for reciproeating said plunger bar.-

4. In a die press, a frame, a die-block supported in said frame and spaced from the back thereof, and a tiltable clutch plate pivotally supported in said frame and adapted to close the opening between said die-block and the back of said frame.

. 5. In a die press, a frame, a die block supported upon said frame, a presser member movable into operative position over any part of said die block, a support for material to be operated upon arranged beneath said bl ck in such manner that the -moved into position to be operated upon.

6. In a die press, a frame, a die block supported by said frame, a presser member arranged to be brought into operative position over any part of said block and to effect a pressing operation wherever located over the block, a support for'the surplus material to 'be cut arranged beneath the block in such manner that the material may be drawn up over the rear edge of the block, and means cooperating with a wall of said support and controllable from the frcntof the machine for preventing return movement of the said material after it has been placed upon the block.

7. In a die press, a frame, a die block carried by said frame, a vertically movable presser member arranged to turn about an axis in the rear of the said block to bring it into operative position over any part of said block, a support for the surplus material to heart arranged beneath said block in such manner that the material may be drawn over the rear edge of said block into position to be cut, and means arranged in the rear part of the machine and adapted to be controlled by the operator from the front of the machine for clamping the material against return movement.

8. In a die press, a frame, a die block supported upon said frame, a presser member adapted to cooperate with said block to force a die through material to be out which is supported upon said block, a support for the surplus material to be operated upon arranged beneath said block in such manner that the material may be drawn up over the edge of said block remote from the operator, said support having a rear Wall extendmg into proximity to the block, means cooperating with said wall for clamping the material against return movement and means extending into proximity to the operator for unclamping said material.

9. In a die press, a frame, a die block supported upon said frame. a presser member arranged to cooperate with said die block to force a die through material to be cut which is supported upon said block, a support for the surplus material to be cut arranged beneath said block in such manner that the material may be drawn up over the edge of said blockremote from the operator, said support having a smooth rear Wall extending into proximity to said block. and means for clamping the material against return movement comprising a clamping plate arranged to engage the unfinished surface of the material and to force the finished surface against the rearwall of said support.

10. In a die-press, a framehaving a rec- V tangular shaped top, a die-block adjustably supported within said frame at the top thereof and spaced from the back of said frame, a back plate secured in said frame, brackets extending downwardly at each side of the rectangular top of said frame, a plate extending along said frame in front of said screws inserted through the back bar of the rectangular upper portion of the frame of the machine andabutting one side of said die-block.

12. A die press comprising a frame, a dieblock mounted on the top .of said frame, brackets extending from the rear of said framevadjacent the top and bottom thereof and in vertical alinement, a plunger bar extending vertically through the lower of.

said brackets and havingan eye formed at the top thereof. a plunger rod extending vertically through the upper-of said brackets and arranged to swivel therein and hav- 7 ing aneye formed at the top thereof and.

the lower end having a swivel connection to the eye of said plungerbar, a pair of guide shoes extending laterally one above the other through the'eye of said plunger rod, a brace-bar extending between one end of the lowermost guide shoe to said plunger rod adjacent the lower end thereof, a presser arm slidably arranged between said guide shoes, means for adjusting said guide shoes one toward the other, a presserjhead adjustably arranged at one end of said presser arm, and means for reciprocating said" plunger bar.

13. A die press comprising a frame,'a cheblock supported in said frame, a. reciprocal plunger rod vertically arranged in rear of said frame. a p'resserarm extendinglater-v allv through the upper end. of saidplunger rod and slidablv arranged therein toinioveoversaid die-block, power shaft iournaled in rear of said frame. a drive pulley rotatably mounted on said shaft, a clutch mem-n ber fixedly mounted on said shaft and adapted to engage with said drive pullev,

a foot pedal operatively connected to said clutch member, and. means operatively connecting said shaft with said reciprocal plunger rod.

14:. A die press comprising a frame, a die block supported in said frame, a reciprocal plunger rod vertically arranged in rear of said frame, a Dresser arm extending laterally through the upper end of said plunger rod and slidably arranged therein to move over said die-block, a power shaft journaled in rear of said frame, a drive pulley rotatably mounted on said shaft and having a pin extending laterally therefrom, a collar fixedly mounted on said shaft next to said drive pulley. a clutch arm pivotally mounted on said collar and springheld against the face of said pulley to engage with said pin,

a cam arm pivotally mounted alongside said shaft and adapted to pass across the side of said pulley to move the said clutch arm therefrom, a foot pedal operatively connected to said cam arm, a cam disc fixedly mounted on one end of said shaft and having a heart-shaped cam groove in one side thereof, and a roller traveling in said cam groove and rotatably mounted at the lower end of said plunger rod.

Signed at Ottawa, Canada, this 31st day of May, 1912.

FRANCIS OC'IAVE SCHRYBURT. Witnesses:

K. L. MACGIBBON. THOMAS R. BALMER.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington, D. G.

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