Workpiece manipulator for use in a forging press

Details Workpiece manipulator for use in a forging press Workpiece manipulator for use in a forging press

1976-07-14

1977-06-28

Gilden, Leon

Metal deforming

With means to handle work or product

By gripper and/or endless chain

72420, 7245318, B21D 4310, B21J 1310

Patent

active

040317366

ABSTRACT:
A workpiece manipulator for holding workpieces being forged by a forging press has a tongs holder which moves with a parallel motion. The parallel motion is actuated by a hydraulic cylinder, and in the circuit which feeds this cylinder, there is a second cylinder connected to a pressure reservoir. When the pressure rises in the first cylinder during a forging stroke, the piston of the second cylinder yields to allow the first cylinder to actuate the necessary parallel motion.

REFERENCES:
patent: 2864271 (1950-12-01), Kendall
patent: 3427853 (1969-02-01), Thomas
patent: 3473364 (1969-10-01), Ross
patent: 3557601 (1971-01-01), Schussler
patent: 3590616 (1971-07-01), Schussler
patent: 3863488 (1975-02-01), Deordies

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