Method of controlling the speed of a mechanical press

Details Method of controlling the speed of a mechanical press Method of controlling the speed of a mechanical press

1978-05-30

1979-04-24

Wilhite, Billy J.

Presses

Methods

100 48, 100 53, B30B 1514

Patent

active

041506162

ABSTRACT:
A speed controlling arrangement and method for a mechanical press. The press has a crankshaft revolution which can be subdivided in principle into a discharging and charging region and a working region with the speed of the mechanical press being controlled between a maximum admissible speed and a minimum possible speed. The speed of travel of the press ram is controlled so that the speed of the press ram during the press discharging and charging region permits a safe discharging and charging of the press. During the working region, the press ram travels at a maximum permissible speed such that a stoppage of the press between the discharging and charging region and the working region is unnecessary.

REFERENCES:
patent: 3138976 (1964-06-01), Robra
patent: 3407724 (1968-10-01), Heiberger
patent: 3416433 (1968-12-01), Gutnikov
patent: 3450912 (1969-06-01), La Vallee
patent: 3888168 (1975-06-01), Kent
patent: 4062213 (1977-12-01), Schneider

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