B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/15, 80/38
B21B 37/00 (2006.01) B21B 17/06 (2006.01) B21B 21/04 (2006.01)
Patent
CA 1068136
ABSTRACT OF THE DISCLOSURE A system for incremently and continuously feeding tubes between dies during a prescribed angle of rotation of a crank assembly in a cold pilger mill. As a main motor drives the crank assembly, a servo-motor, receiving a signal from a digital control unit, which receives a signal from a pulsating encoder associated with the main drive, operates to incremently advance a carriage and shell a controlled predetermined distance between the dies. A reversal of the servo-motor returns the carriage to the initial position in preparation to advance another shell.
285211
Diehl Floyd W. (jr.)
Ledebur Harry C.
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