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

1991-07-02

1992-07-14

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72467, B21D 2228

Patent

active

051292521

ABSTRACT:
A can body maker apparatus of the type having an axially reciprocal ram member and an axially reciprocal redraw carriage comprising a ram position sensing assembly for sensing the position of the ram member and for generating a ram position signal in response thereto; an electromagnetic bearing assembly for frictionlessly radially supporting and aligning one end of the ram member with a predetermined ram displacement path; an electromagnetic redraw carriage actuator for applying magnetic force to the redraw carriage for reciprocating the redraw carriage; and a control assembly for selectively energizing and deenergizing electromagnets in the electromagnetic bearing assembly and the electromagnetic redraw assembly in response to the ram position signal.

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