The reasons are as follows:

1. The spring inside the slide key is broken and needs to be replaced;

2. The slide key is worn and needs to be replaced with a new one;

3. The square hole of the feather key has become larger and needs to be repaired;

4. The spring of the rotary key clutch is too loose or broken. Check the separation and contact of the foot switch.

A punch press is a stamping press. In national production, the stamping process saves materials and energy compared to traditional mechanical processing, has high efficiency, does not require high technical requirements for operators, and can produce products that cannot be achieved by mechanical processing through various mold applications. Therefore, Its uses are becoming more and more widespread.

Stamping production is mainly for plates. Through the mold, blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting and extrusion parts can be made, etc., which are widely used in various fields. For example, we use switches and sockets, cups, cupboards, plates, computer cases, and even missile aircraft... There are many accessories that can be produced through molds using a punch.