Plate positioning and feeding system for a punch

Details Plate positioning and feeding system for a punch Plate positioning and feeding system for a punch

1994-03-22

1996-11-26

Rada, Rinaldi I.

Cutting

Tool engages work during dwell of intermittent workfeed

With work-moving clamp jaw

83211, 83277, 83280, 83364, 83367, B65G 2504, B26F 102

Patent

active

055774270

ABSTRACT:
A pair of numerically controlled feed devices are successively operated, with the second feed device taking over from the first feed device when two or more punching steps have been performed. A trailing row of punching tools performs the first punching step with respect to a fresh plate at the same time when a leading row of tools performs the last punching step with respect to the preceding plate. There are provided sensors to determine plate length and/or angularity of the plate edges in order to enable a numerical control to compute correction data for correcting the feeding of the plate whereby punching through the trailing and leading edges of the plates is avoided.

REFERENCES:
patent: 3600997 (1971-08-01), Schmidt
patent: 4382395 (1983-05-01), Haar
patent: 4468992 (1984-09-01), McGeehee
patent: 4778044 (1988-10-01), Kondo
patent: 4817477 (1989-04-01), Emery et al.
patent: 5016506 (1991-05-01), Bulso, Jr. et al.
patent: 5083487 (1992-01-01), Croteau
patent: 5400652 (1995-03-01), Haar

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