Device for adjusting the strokes of eccentric presses

摘要

The invention relates to a device for adjusting the strokes of eccentric presses, having an eccentric bush (2) which is rotatably mounted on the eccentric shaft (1). The invention is intended to make it possible to achieve reliable engagement, which can be monitored, of the toothing of the fixing device in each position of the eccentric bush (2) and reliable engagement of the toothing of the coupling sleeve in each position of the eccentric shaft (1) without time-consuming resetting in so-called inching service by the press drive. According to the invention, this is achieved in that the fixing device has a pivoted lever (8) which is rotatably mounted in the frame, one arm of which is connected to an operating cylinder (10) mounted in the press frame and on the other arm of which there is rotatably mounted a toothed segment (11) which is connected to a further operating cylinder (12) which is arranged on the pivoted lever (8) and the toothing of which engages in an additional toothing (15) of the eccentric bush (2) and in that an initiator sheet (13) is rotatably mounted on the pivoted lever (8), is supported by the toothing (15) of the eccentric bush (2) and is operatively connected to an electric monitoring device (16) - Figure 2. <IMAGE>