Device for controlling grippers engaging sheet-like workpieces a

Details Device for controlling grippers engaging sheet-like workpieces a Device for controlling grippers engaging sheet-like workpieces a

1995-05-24

1997-12-16

Terrell, William E.

Sheet feeding or delivering

Delivering

By endless conveyor

271277, 271268, 271205, 271 82, 271 85, B65H 2904

Patent

active

056976070

ABSTRACT:
A device for controlling the gripping action of grippers on a plate-like workpiece at the end of the feeding table of a machine that processes sheet-like workpieces has an arrangement for controlling the upper mechanisms for positioning, respectively, the gripper bar, the sheet pull-down appliance, and a stop-carrying tablet and a mechanism for opening the grippers. This device includes a horizontal common axle arranged to extend crosswise to the sheet travelling direction and mounted for rotation around its lengthwise axis so as to be able to be oscillated through a predetermined angle by a single lower drive arrangement consisting of a cam, a lever follower and a pull linkage. Each lateral end of this common axle carries a symmetrical series of articulated arms and cam which actuate the above-mentioned upper mechanisms.

REFERENCES:
patent: 4072260 (1978-02-01), Doue
patent: 4953897 (1990-09-01), Honeggar
patent: 5199757 (1993-04-01), Simeth
patent: 5542657 (1996-08-01), Kemmeren et al.

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