The system adopts the PLC control, inverter and contact screen generally. The digital exchanging is completed by communication. PLC is used to read, write, start and stop the inverter at will. PLC software ensures the auto program editing and setting for different drawing technics and ensures the running smoothly. Color screen man-machine interface system can monitor equipment running status and failure display. All technics parameters of system can be input from contact screen with high precision, strong correctness and easy modification. It also ensures the wide drawing technics and easily realizes the die jumped drawing. The whole system runs reliably with low failure rate and easily operation.