Metal deforming – With means to handle work or product – Including means to permit maneuvering of work or product at...
Patent
1992-08-31
1995-10-03
Larson, Lowell A.
Metal deforming
With means to handle work or product
Including means to permit maneuvering of work or product at...
B21D 4310, B21J 1310
Patent
active
054542626
ABSTRACT:
In a process for operating a press unit comprising a press, more particularly a forging press, having a hydraulic driving and control system that causes the working stroke movement of the press to follow a substantially sinusoidal course, and at least one integrated forging manipulator, synchronization of the working stroke of the press and the stroke of the tong arm of the manipulator is effected by a driving and control system of the forging manipulator by which a stroke movement of the tong arm of the forging manipulator adjusted to match the working stroke of the press and having the same frequency as that of the working stroke movement of the press, but with a smaller amplitude, is produced. For raising and lowering of the tong arm at least one continuously variable, reversible-flow pump is associated with the forging manipulator.
REFERENCES:
patent: 3267708 (1966-08-01), Sims et al.
patent: 3427853 (1969-02-01), Thomas
patent: 3473364 (1969-10-01), Ross
patent: 3504512 (1970-04-01), Knowles
patent: 3715908 (1973-02-01), Schussler
patent: 4031736 (1977-06-01), Kutz
patent: 4120185 (1978-10-01), Schneider et al.
Gurley Donald M.
Larson Lowell A.
Pahnke Engineering GmbH & Co. KG
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