B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
341/102
B21D 55/00 (2006.01) B21D 43/02 (2006.01) G05B 19/4062 (2006.01)
Patent
CA 1228657
ABSTRACT OF THE DISCLODURE A continuously running mechanical transfer press includes a workpiece transfer system in which electric motors are used to provide reciprocating movements in the clamp, lift and transfer axes. An independent backup tracking system including a fault detection sensing control is provided which utilizes independent measures of the position of the workpiece transfer system in all three axes along with an inde- pendent measure of the position of the press die in its cycle to monitor proper synchronization and operation of the workpiece transfer system. The fault detection system indicates a fault in the event the transfer sys- tem loses synchronization with the moving die, in the event two separate measures of die position are not in agreement, or in the event the transfer system fails to maintain parallelism of the two transfer rails included in the system. The press is stopped in response to detection of a fault to protect the press and the trans- fer system from damage.
485818
Schulz Harry W.
Tennessen Rick L.
Vanderzee Allen J.
Enprotech Mechanical Services Inc.
Ridout & Maybee Llp
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