method for operation of mechanical press, mechanical press and system

摘要

METHOD FOR MECHANICAL PRESS, MECHANICAL PRESS AND SYSTEM OPERATION. The present invention relates to a method for operating a mechanical press comprising at least one electric drive motor (20), a drive control device (21a, 21b) for controlling at least one said motor (20), a hammer (23), a mechanical means (27-25) for translating the rotational movement of at least one said motor (20) to the linear movement of said striker (23) in a first direction of rotation, 'a linear movement of said striker (23) arranged to be lowered and raised along a linear path (S) to operate said press to perform a press cycle, including a pressing part and one or more unpressed parts of said press cycle, and providing a control output for said drive control device (21a, 21b) such that the speed (WM) of at least one drive motor (20) is varied during at least one pressing part or without pressing a said press cycle. The press can be inverted between production cycles. A press and system including such a press are also described.