Schuler Pressen Gmbh

Rainer Hedler

Joachim Beyer

Marcus Kosse

The invention relates to a press drive for a press or a press having a press drive. The invention also relates to a method for controlling the press drive by means of a control unit. The press drive is used for moving a ram of the press in a stroke direction H between an upper return point OT and a lower return point UT. It comprises a knee lever gear having a first lever and a second lever. A connecting rod engages on the knee lever of the two levers and is connected on the other end to an eccentric of an eccentric drive. The control unit can drive the eccentric drive in a first operating mode Bor a second operating mode Bor, in particular, also a third operating mode B. In the first and the second operating modes B, B, the eccentric oscillates in a respectively different angle region W, Wabout a rotation axis D of the eccentric drive, thus resulting in different force and movement states of the ram in both operating modes.

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Erfurt, Germany

Rainer Hedler