System for forming an elongated container

Details System for forming an elongated container System for forming an elongated container

2006-02-21

2006-02-21

Tolan, Ed (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S342300, C072S347000, C072S364000, C072S379400, C072S715000, C413S069000

Reexamination Certificate

active

07000445

ABSTRACT:
A system for forming a cup used in forming an elongated container including a draw-redraw station including a movable platen carrying a punch shell; a punch core riser, a punch core mounted on the punch core riser; and a first, fluidly actuated pressure sleeve; and a fixed base carrying a pressure pad; a die core ring; and a die core; the punch shell being movable toward the die core ring to wipe the blank over the die core ring to form an inverted cup; the punch core being movable toward the die core to reverse draw the inverted cup and form the cup; and the die core ring engaging the material against the punch core during the reverse draw to control metal thickness; and a cooling assembly including a chiller, a coolant passage formed in the punch core and fluidly connected to the chiller.

REFERENCES:
patent: 3678725 (1972-07-01), Langewis
patent: 3733881 (1973-05-01), Grigorenko
patent: 4166372 (1979-09-01), Knight
patent: 4416140 (1983-11-01), Bulso et al.
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patent: 4732031 (1988-03-01), Bulso, Jr. et al.
patent: 5024077 (1991-06-01), Bulso, Jr. et al.
patent: 5626048 (1997-05-01), McClung
patent: 6490904 (2002-12-01), Zauhar
patent: 6598450 (2003-07-01), Blue

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