US1629268A - Die press - Google Patents

Description

H. GREENBERG DIE PRESS May 17, 1927. 3629368) Filed Jan. 1e, 1924 2 sheets-sheet 1 BY mw A TTORNE Y May 177 1927 H, GRENBERG t DIE PRESS FiledV Jan. 16, 1924 2 Sheets-Sheet 2 IN VEN TOR Harry Greenberg A TTORNE Y lll Patented May 17, 1927.

entre star-as HARRY ennnnnnne, or nnooKLYri, NEW Yonai.

v. Din runes.

Application 'fired 'January p16, 1924. seri-a1 Nofesasoa.

My invention'relates to improvements in cutting` punching. stam-ping, and similar machines, and more particularly has reference to and is illustrated inthe accompanying drawings in vits application to a machine for blankin'g out collar l ands und similar articles 'from Fabrics preferably laid upon a movable table or platform. i

Heretoforc it .has been custon'iary to employ a detached die which is 'shifted by hand between the strokes oi? theplunger of.

the machine 'for cutting out blanks lsuch as referred to. This is a slonv method, is Vinexact, requires constant expert attention, and is more or less dangerous to the operator, Whereas accord-ing to my present method` the dies while A(.letachable 'are movalfily attached to the plunger and automatically 'ted preferably transversely across the length of the `goods or fabric in 'predetermined space, thereby cutting with eXactness and nicety through vthe fabrics piledl upon the tabl-e, avoiding Waste, saving time. minimizing danger, and saving space for the number of machines required for a given output of material. y i

In the accompanying drawings, I have illustrated in Figzl in 'front elevation, a suit-- able form of blanking or cutting machine embodying an application of my invention. Fig. 2 is a side elevation o't' vthe same. Fig. 3 is an enlarged longitudinal view partly broken away and partly in section illustrating the feed bar or rod for the carriage containing the die or cutting tool, and F ig. et is a vieiv looking from right to left .thereat.

5 indicates the usual trame ot acutting or blanking machine of the type referred to, and 6 is the cross head or plunger thereof.

Power may be transmitted by belt or other- Wise to a pulley such as 7 upon a shaft upon which is mounted a gear 8 which when shifted lettxvardly engages the gear 9 upon 7 `the shaft 10 said gear 9 meshing with gear 9 upon shatt 10. which carries the eccentricl 11 connected by rods 12 to the projection 13 ot the head 6, thereby giving vertical reciprocation to said head, and upon said head are suitable brackets such as 141-14 Which carry the bar 15 having a longitudinal recess 16 Within which racks or tooth members A such as 17 may be `introduced against the tension of a resili-ently projected head such as 18.

19 indicates a suitable carriage adapted tol slide along the bar 15 and is provided With a paxv'l 2O pivotedv at '2.1 inthe `frame `of said carriage Ias shown,l and provided Wit4 a"roller22 in the other end of said pavvl immediately Vben` at'lo-t,lie bar 2B, which bar 23 is in turn pivotal-ly.mounted at 221, Pthe iiont'b'eing retained by thespr-ing J5."` .At one end of said bar 23, a projecting member 26 Ais pivot-'ally secured -'to the head 6 as shoivn und is adapted to ltravel vertically in the path ot` the projecting nremberfl' pivotally mounted .in vthe' frame of the machine as indicatedatQS, soA :that as the projection 2G moves oownwardl'y it readily'gpasses the jnfoj'ecton 27, but-upon 'th-'e return `(nfupward movement ot the projection 26, the'left kend or the 'projection is engaged above the right end et the projection A26, thereby causthe frame Q3 to be thereby Vpulled ldown-- svardly striking the roller 22 and depressing the lett end ofthe pawl 20, releasing `the same trom a notch .in the frack 1'?,l and the carriage 19 beingretained :at one .en-d .off the strap 30 is pulled le'ftwardly, allowingthe pawl 20 to engage the next left succeeding notch, the strap 30 being Wound upon a resilient drum 31 for the purpose of drawing the carriage 19 leftivardly.

llVith each downward move, therefore` ot' the plunger 6, the carriage 19 isV moved leftwardly one step a predetermined clistance so as tocut through another section of the fabric 31upon the table 32.

33 indicates the die which is slidably mounted Within the frame or carriage 19 so that it can be pulled toward or pushed away from the operator to any desired extent. Likewise the table 32 can be brought torvvard upon` the rollers 31 or pushed 'back- Ward into the machine as may loe found desirable for adjustment., and in this Way the entire klength ot the layers of fabric .31 can Abe punched or cut `in successive transverse lines until the entire 'Fabric has been used up', the successive transverse cuttings being separated a predetermined extent according to the particular' rack or 'notched bar 17 used and Which bar is of course changed with di terent dies tor different cuttings.

Of course it Will be understood that various moditications may be made in the construction and arrangement Yof parts With-V out departing from the spirit of the invention as claimed.

I claim:

1. Ina machine of the class described, a

lio

hinged U-shaped bar resiliently retained upon the front of the plunger head of said machine, another bar beneath the same upon said head having spaced apart engaging means, a carriage and means for feeding the saine along said other bar and beneath said' `machineadapted to slidably and entirelyT carry said die holder, one ot said supports having recesses determining the movement of said holder, and means for shifting said holder step by step along said supports engaging and disengaging successively said recesses.

3. Ina machine of the class described, a cutting block, a die, a die holder, means 'for moving the die and die holder to and from said block, two supports upon and at either side of adapted to slidably carry said die holder, one oli' said supports having a series of stops, and means for moving said holder step by step successively in and out of said stops across said machine, said means for moving said holder located only at opposite sides of-said machine.

In a machine of the class described, a cutting block, a die, a die holder, means for automatically depressing said holder and for moving the same laterally a predetermined distance each time the saine is depressed, a bar having retaining means, means upon said holder for engaging the same, and means operatively connected with the driving inschanism of said machine Vtor periodicaliy and successively disconnecting said retaining and engaging means. Y 4

5. In a machine of the class described` a ,cutting block, a die, a die holder, means 'for automatically depressing said holder and Jfor moving the same laterally a predetermined distance each time the same is depressed, a bar having retaining means,means upon said holder for engaging 4the same, and means operatively connected with the driving mechanism of said machine for periodicaily and siiiccessively (flisconnecting said retaining and engaging means, said last mentioned means comprising a substantially verti 'ally 1novable transversely extending member.

In testimony whereof I hereunto atiix my signature. v.

HARRY GREENBERG.

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