MECHANICAL PRESS DRIVE SYSTEM AND METHOD

摘要

A method for operating a mechanical press comprising at least one electric drive motor (20), a drive control means for controlling at least one said motor, a ram (23), a mechanical means (27, 25) for translating rotational motion of the at least one said motor to linear motion of said ram in a first rotation direction, into a linear motion of said ram arranged to be lowered and raised along a linear path (S) for operating said press to carry out a press cycle including a pressing part and one or more non-pressing parts of said press cycle, and by providing a control output to said drive control means such that the speed (WM) of the at least one said drive motor is varied during at least one said pressing or non-pressing part of a said press cycle. The press may be reversed between production cycles. A press and system including a such press are also described.