Safety device in a platen press for processing plate-like workpi

Details Safety device in a platen press for processing plate-like workpi Safety device in a platen press for processing plate-like workpi

1995-05-24

1996-11-19

Gerrity, Stephen F.

Presses

Automatic or material triggered control

Of material addition, deposition, or discharging

72 4, 83 61, 83 62, 100 53, 100215, B30B 1514, B30B 1528

Patent

active

055752020

ABSTRACT:
A safety device which prevents a gripping bar from being squeezed in a platen press that processes plate-like workpieces. This press comprises a fixed upper beam and a movable lower beam which is raised recurrently by a driving device. The safety device comprises a pick-up for emergency situations having the form of a cell for directly scanning the passage of the gripper bar, which cell is arranged at a point of the outlet of the gripper bar from the press. The cell will actuate a switch of an emergency braking device arranged in the drive of the lower beam. Preferably, the scanning cell is an inductive pick-up detecting the proximity of a metal mass.

REFERENCES:
patent: 4387632 (1983-06-01), Heiberger
patent: 4466318 (1984-08-01), Schoch
patent: 4627253 (1986-12-01), Tennessen et al.
patent: 5091962 (1992-02-01), Malloy et al.

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