Patent ID: 7726166
Filing Date: 2010-06-01
Classification: B21D

Abstract:
1. A multi-step press system comprising: a press including a press frame, a table provided on the press frame, the table having a standby station into which workpieces are loaded one by one and a plurality of press-forming stations in which the workpieces are sequentially press-formed, the standby station and the press-forming stations being serially arranged in an X-axis direction, and a ram provided above the table and movable along a Z-axis direction; a press die set including a lower die attached to the table and an upper die attached to the ram, the lower die and the upper die being adapted to simultaneously press-form the workpieces placed in the press-forming stations; a destacker provided on one side of the press for periodically loading the workpieces into the standby station one by one; and a transfer feeder provided between the table and the ram for simultaneously picking up the workpieces placed in the standby station and the press-forming stations and transferring the workpieces in a downstream direction, wherein the lower die of the press die set comprises: