The stamping die is the main process equipment for stamping, and the stamping is done by the relative motion of the upper and lower molds. In the structure, it should be as convenient as possible to ensure the feeding, setting, delivery and cleaning of waste. For the processing of small parts, it is strictly forbidden for the operator's fingers, wrists or other parts of the body to extend into the mold area. For the processing of large parts, if the operator has to manually enter the mold, it is