Can body maker with magnetic ram bearing and redraw actuator

Details Can body maker with magnetic ram bearing and redraw actuator Can body maker with magnetic ram bearing and redraw actuator

1993-03-23

1994-10-25

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72430, B21D 2410

Patent

active

053577795

ABSTRACT:
A can body maker apparatus including a stationary support frame; a housing having forming and ironing dies located therein mounted on the support frame; an elongated ram; a reciprocating ram drive; and a redraw assembly which includes a redraw sleeve for supporting a can body preform thereon; a redraw carriage for supporting and axially displacing the redraw sleeve relative the ram; a redraw electromagnetic coil fixedly positioned relative the stationary support frame; and a permanent magnet fixedly mounted with respect to the redraw carriage in displace relationship with the coil along the coil axis for co-acting with the electromagnetic field produced by the coil for controllably reciprocatingly displacing the redraw carriage. Also, apparatus is provided for applying a force on the redraw sleeve while the redraw sleeve is in contact with the can body preform so that the redraw sleeve applies a pressure on the can body preform and control apparatus for controlling the amount of force applied on the redraw sleeve.

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