Apparatus for forming tall tapered containers

Details Apparatus for forming tall tapered containers Apparatus for forming tall tapered containers

1987-12-07

1988-11-08

Combs, E. Michael

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

B21D 2220

Patent

active

047826851

ABSTRACT:
A method of forming a tapered container in which the container is first redrawn to a partial length having first and second straight sidewall portions interconnected by a transition position and then redrawn to substantially its final length and tapered condition by drawing material from the transition portion. The method also optionally includes an overlength second redraw and a bottom profiling step utilizing the overdrawn portion to form the profile. The apparatus includes a plurality of stations wherein the redrawing is accomplished in the first instance with a tapered punch and straight walled die and in the second instance with a tapered punch and tapered die.

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