Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Patent
1992-06-12
1993-12-21
Larson, Lowell A.
Metal deforming
By use of closed-die and coacting work-forcer
Cup or shell drawing
72350, B21D 2228
Patent
active
052712591
ABSTRACT:
An apparatus is provided for extending and retracting a redraw sleeve of a container bodymaker and for electromagnetically holding the redraw sleeve in its extended position against a container blank. A linear motor is disposed between two bulkheads and is interconnected with the redraw sleeve through one or more actuating rods. An electromagnet assembly is disposed proximate to a redraw die and, when activated, holds the redraw sleeve against the container blank while a reciprocating ram forces the container blank through the redraw die. The linear motor and the electromagnet assembly are axially disposed relative to the redraw die and the bulkheads to provide adequate access to the nose of the ram, the redraw sleeve and other components.
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Miller Edward C.
Worwag Randall S.
Alberding Gilbert E.
Ball Corporation
Larson Lowell A.
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