Multi-step process press system

A multi-step process press system comprising:

• a press machine that includes a press frame which has an X-axis direction, a Y-axis direction, a Z-axis direction, and a press line aligned with the X-axis direction, a bolster which is installed on the press frame and has a plurality of workstations provided in series along the press line in order to perform press work on sheets such that complete products are produced from the sheets through blank workpieces, and a ram which is installed above the bolster so as to be able to linearly reciprocate along the Z-axis direction;
• a plurality of press die sets that is installed for press work at the workstations of the press machine, respectively, and each has a lower die installed on the bolster and an upper die installed on the ram;
• a sheet loading means that is installed at the upstream of the press machine, and loads the sheets onto the first workstation of the plurality of workstations;
• and
• a transfer feeder that is installed between the bolster and the ram of the press machine, and simultaneously unloads the blank workpieces loaded respectively on the workstations of the press machine, and loads the blank workpieces onto the downstream sides of the plurality of workstations.