USRE17085E

USRE17085E - Die press

Info

Publication number: USRE17085E
Authority: US
Publication date: 1928-09-18

Description

Sept 18, 1928. Af THOMAS DIE PRESS Original Filed Nov. 6, 1924 en a1 Inventor: lfled'J TMW by m Reissued Sept. 18, 192.8. i i l UNITED vSTATES PATENT --OFFICE.

ALFRED J. THOMAS, E BRAINTREE, MASSACHUSETTS, ASSIGNOB, BY' MEISNE ASSIGN- MENTS, T0 BENJAMIN W. FREEMAN, 0I' CINCINNATI, OHIO.

:om ranas.

riginal No. 1,545,863, dated Iuly 14,1925, Serial 1Y0. 748,077, led November 8, 19M'.A Application for reissuel'led October 21, 1926. Serial No. 143,308.

The present invention relates to die presses, supporting member so that the front edge 55 and more particularly to die presses which are may be interposed between the quarters of a. used in the manufacture of shoes such, for made shoe upper during the 'cutting-out op- Ainstance, as clicking, perforating and cuteration. l5 ting-nut machines. In the broader aspects of the invention the In certain styles of shoes, which are very work supporting member may be provided 60 popular, the uppers thereof are ornamented with a smgle depression, but 1n order to inwith a design of cut-out portions. These crease the field of usefulness of a, single work cut-out portions may be formed in die presses supporting member to ada t it to support at present available to the shoe industry only made uppers o f many sizes t e work supportby forming the cut-out portions in the compo- 'mg member is provided, in addition to the 65 nent parts of the shoe upper before they are deep depression in its frontend face, with assembled and stitched to form the made shallower depressions in its opposite side upper. The beds of die presses at present faces.

available to the shoe industry are all at with A further object of the present invention vertical sides so that while they may supis to produce a die press having reliable 70 port atwise a component shoe upper part means for protecting the cutting edge of the for the cutting-onto eration it is impossible cutting-out tool during the cutting-out opl to support fiatwise t ereon the quarter of a. eration.

made upper owing tothe impossibility of po- To the accomplishment of this object a sitioning the other quarter out ofthe way further feature of the present invention con-k 75 without buckling the quarter presented to templates the provision, in V'a die press havthe cutting-out tool. 4 ing a bed, a pressing member, a work sup- The principal object ofthe present invenporting member movable relatively to the tion is to produce a die press in which a made bed, and a cutting-out tool interposed beupper may be provided with the design of tween the members and provided with a cutcut-out portions. ting edge directed towards one of said mem To the accomplishment of this object a bers, said pressing member being movable feature of the present invention contemplates towards the work supporting member to 30 the provision in la die press having a bed, a cause the cutting edge of the tool to cut pressing member and a cutting-out tool, of a through thework, of a sheet of soft material 85 work supporting member constructed to supfor protecting the cutting edge of the tool on port flatwise one of the quarters of a' made the member towards which theI cutting edge =upper for the cutting-out operat-ion and to is directed.

position the opposite quarter out of the way Broadly considered it is immaterial which without buckling thequarter operated upon. 'one of. the members is provided vwith the sheet 90 Broadly considered the work. supporting of soft material as long as it is the member member may be constructed to support flattowards which the cutting edge of the tool is wise one of the quarters of a made upper for directed'. It is preferred, however, to pro- 40 the cutting-out operation and to position the vide the work supporting member with the opposite quarter out of the way without bucksheet as this Iconstruction permits the use of ling the quarter operated upon in any suita die freely movable over the work.

able or desirable manner. It is preferred, A still further feature.of the invention however, to provide the work supporting contemplates the provisiominade press hav- 45 member with a top face upon which one of the ing a bed. a pressing` member, a work supportquarters of a made upper is positioned lating member movable relative to the bed, acutwise for the cutting-out operation and with ting-out tool interposed between the members an end face having a depression therein in and provided with a cutting` edge directed towhich the opposite quarter is positioned' durwards onebf said members. said pressing 50 ing the cutting-out operation. Specifically member being movable towards the work supthe ltop face of the work supporting member porting member to cause the cutting edge of is rectangular with a Vfront edge extending the tool to cut through the work, and a sheet substantiallv the width of the top face and 'of soft material for protecting the cutting overhanging the body portion of the work edge of the tool on themember towards which vthe cutting ledge is directed, of a strip of fiexible material movable over the exposed face ofv said sheet.'

In the broader aspects of the invention many different kinds of material may be used for the sheet and strip, but it is preferred to use fibre-board for the sheet and paper for the strip.

Other features of the invention relate to certain devices, combinations and arrangements of parts hereinafter described and then set forth broadly and in detail in the apended claims which possess advantages readlly apparent to those skilled in the art.

The various features of the present invention will be readily understood from an inspection of the accompanying drawings showing the best form of the invention at present known to the inventor, inv which,

Figurel is a longitudinal sectional elevation of a work supporting member embodying certain principles of the present invention, said work supporting member being shown supported upon the bed of a die press and beneath the reciprocating pressing member thereof,

Fig. 2 is a detail in plan of the work supporting member, and

Fig. 3 is a section elevation on a reduced scale on the line 3 3, Fig. 1.

As shown in Fig. 1, the die press comprises a bed 10, and a vertically reciprocating pressing member 11. The bed and pressing member specifically form no part of the present invention as any well known press having a bed and a pressing member may be used in connection with the work supporting member disclosed herein. It is deemed unnecessary therefore to `further illustrate said press.

Upon the bed 10 is mounted a metal anvil 12 which is not attached to the bed, but retains theI position in which it may be placed on account of the weight of said anvil. It constitutes therefore a readily removable work supporting member freely movable over the bed 10.\ .v

The anvil 12 is provided with a body portion having a rectangular top face terminating in a front edge extending subsantially the width of the top face. In order to position the quarter of a made shoe upper on thel top face flatwise, the front face of the body portion of the anvil 12 is provided with a deep depression13 (Fi 2), in which the opposite quarter of the ma e upper may be posltioned without buckling the quarter positioned on the top face. With this construction the front edge of the top face overhangs the body v portion so that it may be interposed between the quarters of a made shoe upper. The side faces of the body portion of the anvil 12 are provided with dpressions 14 (Fig. 3) which,

however, are sha owerthan the depression 13. Movable freely over the work W (Fig. 2)

Y on the top face of thefanvil12 is a cuttingout die 15 having its cutting edge directed towards the anvil 12. In `operation the made -shoe upper is positioned on the anvil with ting edge of the die 15 to cut through the work.'

During the cutting-out operation the made upper is grasped by at least one hand of the operative, but this is not dangerous owing to the space. provided around the anvil 12 between the top face of the anvil and the bed 10.

In order to protectthe cutting the cutting edge of the die 15 during the cutting-out operation, the top face of the anvil 12 is provided with a fibre-board plate 16 which is secured to said anvil by means of the centrall disposed screw 17 about the axis of whic the plate 16 ma be rotated, so that when the y forward part o the plate becomes unserviceable the' rear part thereof may be moved into position over the front part of the anvil 12. When both ends of the plate 16 have become unserviceable the plate may be removed and a new plate substituted therefor.

The anvil has forwardly extending ears 18 in which is revolubly mounted a roll 19 having a strip of paper 20 wound thereon. The paper strip 20 passes partially around guide rolls 21, and over the upper face of the plate 16 to the rear of the anv1l12 where it passes between the

feed rolls

22, 23 to a receiving roll 24 on which it is wound as said strip is fed thereto. The feed roll 23 has a ratchet 25 rotatable therewith with which a pawl 26 coacts to give-a step b step motion to said feed roll 23. An end ess belt 27 from the roll 23 to the receiving roll 23 causes these rolls to rotate in unison. The roll 22 is'provided with means for ad'usting it toward and from its companion rol 23, thereby regulating the gripping contact of the

rolls

22, 23 wlth the strip 20. The pawl 26 is pivotally mounted on a plunger 28 adapted to reciprocate vertically in the chamber 29 of a cylindrical member 30 mounted on a rear end of the anvil 12. i

Beneath the plunger 28 is a helical spring 31 tendin to force the plunger 28 upwardly so that t e stem 32 thereof will extend a short distance above the t'op of the die 15 so that when the pressure member 11 descends it will strike said stem 32 and force the plunger 28 downwardly againstthe tension of the spring 31, thereby permitting the pawl 26 to engage a new tooth of the ratchet 25.

As soon as the die 15 is removed from the work W, after the pressure member 11 has moved upwardly, the spring 31 will force Vthe .plunger 28 upwardly, causing the pawl .26 to, impart a partial rotation to the ratchet 25, and thus feed the strip'20 and wind it upon t-hero'll 24.

A collar 33 surrounds the stem ,-32 and is The paper strip-2() is of sufficient thick-y ness to receive the-cutting edges of the die without being cut through, but in case these cutting edges do pass through the paper strip they willnot be injured as they will simply cut into the face of the fibre-board plate 16.

It is desirable to always have a flat plane.

. face for the cutting edges of the die to'coactwith when the work W is being operated upon and by giving the strip 20 a step by step movement at each .cutting operation a new surface is provided for each successive operation. This is of considerable importance as by this means a cleaner cut is assured.

It will be clear to those skilled in this class of machines and with the general objects of the present invention in view, that changes may bemade in the details of structure, the described and illustrated embodiment thereof being intended as an exploitation of its underlying essentials, the features whereof are definitely stated in claims herewith.

What is claimed as new is 1. In a die press, the combination with a bed, of a weighted metal anvil freely movable on the bed, a strip of flexible material superimposed thereon, and means supported by said anvil for moving said stripover the surface thereof.

2. In a die press, the combination with a bed and a pressing member, of an anvil freely movable on the bed, vtwo rolls mounted in bearings at the ends of said anvil, a strip of paper on one roll extending overthe upper face of said anvil and adapted to be wound on the other roll, and means actuated by the pressing` member for rotating said receiving roll.

3. In a die press, the combination with a bed and a pressing member, of an anvil freely movable on the bed, two rolls mounted in bearings at the ends of said anvil, a strip of paper on one roll extending over the upper face of saida'nviland adapted to b e wound on the other roll, and means actuated by the pressing memberv for rotating said receiving roll and 'feeding the strip thereto.

4. In a die press', the combination with .a bed and a; pressing member, of an anvil freely movable onthe ed,` two rolls mounted in bearings at thefends of said anvil, a strip ofv paper on one roll extending over the upper ber, and a spring pressed their true scope in the face of saidanviland adapted to -be wound "i on the other roll, rolls at the rear of the anvil for feeding said strip, the pressing member for rotating said receiving roll and feeding rolls.

5. In a die press, the combinationwith a bed and a pressing member, of an anvil freely movable on the bed, two rolls mounted in bearings at/the ends' of said anvil, a strip of paper on one'roll extending over the upper ace of said anvil and adapted to be wound on the other roll, rolls for feeding a ratchet revoluble with one of said feed rolls, and a reciprocating pawl coacting with said ratchet and adapted to be actuated by the downward movement of the pressing member.

6. In a die press, the combination with a bed and a pressing member, of an anvil freely movable on the lbed, two rolls mounted in bearings at the ends of said anvil, a strip of paper onone roll extending over the upper face of said anvil and adapted to be wound on the other roll, rollsfor feedingsaid stri a ratchet revoluble with one of said feed rol s, a reciprocating pawl coacting with said ratchet and adapted to be actuated by the downward movement of the pressing memplunger carrying said strip,

said pawl.

7. In a die press,the combination with a bed and a pressing member, of an anvil freely movable on the bed, two rolls vmounted in bearings at the ends of said anvil, a strip of paper on one roll extending over the upper face of said anvil and adapted to be wound on the other roll, rolls for feeding said strip, a ratchet revoluble with one of said feed rolls, a reciproca-ting pawl coacting with said ratchet and adapted to be actuated by the downward movement of the pressing member, a spring pressed plunger carrying said pawl, and means for controlling the movement of said plunger.

8. In a die press, the combination with a bed and a pressing member, of a work supporting member movable relatively to the bed, a tool supported by the work supporting member provide-d with a cutting edge directed towards one of said members, said pressing member being movable towards the work supporting member to cause the cutting edge of the tool to cut through the work, and a sheet of libre-board for protecting the cutting edge of the tool on the member towards which the cutting edge is directed.

9. In a die press, the combination with a and means actuated by v bed and a pressing member, of a work supporting member movable relatively to the bed, a tool supported by the 'work supporting member provided with a cutting edge directed towards one of said members, said pressing memberbeing movable towards the work supporting member to cause the `cutting edge the tool on the member towards which the cutting edge is directed, and a stri 'of paper movable over the exposed face o said fibreboard.

10. In a die press, the combination with a bed and a pressing member, a work slpporting member, a tool having a cuttin e the cutting edge and the face ofy one of the members.

11. In a pressing member, ber, a tool having a cutting edge inter between the members, said members die press, the combination with a of a work supporting memosed eing 2o relatively movable to cause the cutting edge of the tool to cut through the work, and means for protecting the 'cutting edge of the `tool comprising ashet of libre-board and a strip of pa er mte between the cutting edge and t e face o one of the members.-

12. In a die press, the combination with a bed and a pressing member, a work su porting member, a tool having a cuttin edge-interposed between the members, sai members belng relatively movable to cause the cutt l edge ofthe tool to cut through the work, an means for protecting the cutting edge of the tool comprising relativel soft material and a strip of flexible materia interposed between I the cutting edge and the face'of one of the members.

In testimony whereof I have signed my name to this specification.V

^ ALFRED J. THOMAS. A'