In order to ensure the normal production, reduce the stamping die defects caused by unsafe factors, the following metal stamping die in the design requirements.

1. Working parts of stamping die, such as concave and convex die materials, must meet the requirements of hardness, strength and heat treatment, so as to prevent the occurrence of fracture in use.

2. The positioning parts of the stamping die should be designed to be easy to operate and adopt a reasonable positioning method.

3. The design of the presser plate and the presser variable ring shall meet their specific functions. The ejector shall have certain ejecting force to meet the functions of ejecting parts and cleaning residual materials.

Unloading version of the design to prevent fingers into, rounded corners to avoid scratches on the fingers.

4. The design of guide pillar guide sleeve should not only meet the clearance requirements of concave and convex mold during operation, but also avoid the need for staff to reach blank across the guide pillar.

5. The backing plate design of the stamping die shall be connected with the formwork through screws and nuts, and the spacing between the two shall be based on the convenience of parts.