Apparatus and method for stripping a workpiece from a supporting

Details Apparatus and method for stripping a workpiece from a supporting Apparatus and method for stripping a workpiece from a supporting

1990-08-06

1991-10-15

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

With stripping or ejecting from tool

B21D 4508

Patent

active

050563505

ABSTRACT:
Apparatus and method for stripping a can body having an open end and a closed end from the punch on a reciprocating ram of a can body making apparatus wherein a cavity exists between the closed end and the punch and wherein the ram has a forward stroke and a return stroke by moving the closed end into contact with doming apparatus during the forward stroke to move a valve from a closed to an opened position to feed air under pressure into the cavity to hold the closed end against the doming apparatus during the return stroke until the can body is separated from the punch and ejecting the stripped can body from the doming apparatus.

REFERENCES:
patent: 3635069 (1972-01-01), Eickenhorst
patent: 3654796 (1972-04-01), Dunn
patent: 3771344 (1973-11-01), Wright
patent: 3952573 (1976-04-01), Sorensen
patent: 3967482 (1976-07-01), Kubecki et al.
patent: 4224819 (1980-09-01), Kaminskas
patent: 4280333 (1981-07-01), Murphy
patent: 4362037 (1982-12-01), Whitfield
patent: 4546636 (1985-10-01), Snyder et al.

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