Patent ID: 7637138
Filing Date: 2009-12-29
Classification: B21D,Y10T

Abstract:
1. A multistage press comprising: a machine-mounted clamping plate; a press plunger located opposite the clamping plate; an insert arranged within the clamping plate; drive means connected to the insert to move the insert alternately towards and away from the press plunger depending on a movement of the press plunger; coupling means coupling the drive means to the insert for converting a rotational drive movement of the drive means into movements of the insert towards and away from the press plunger; the coupling means including a rotating guiding surface, and a plurality of followers including first and second followers movably guided by the rotating guiding surface; wherein the first follower positively moves the insert towards the press plunger, and the second follower positively moves the insert away from the press plunger.