[Answer]: After long-term mechanical operation, a large number of metal plates are punched by the metal stamping mould. Even if there is stamping oil to play a lubrication and protection role, there will inevitably be problems. It is necessary to disassemble and repair in time, usually with the participation of the mould maker. Of course, the degree of damage is also divided into slight and serious, which should be determined according to the repair cost and the emergency situation of the production cycle. If it is too serious, the die shall be replaced directly.

Metal stamping mould occurs tilt, looseness, template deformation can be solved one by one. When tilting, it will destroy the integrity of the stamping parts, make the blanking non-standard, product deformation and other phenomena, first of all, analysis of the problem, the movement angle is not vertical, may be between the templates jump into the scrap, can not be flat, you can dismantle the mold reorganization, recalibrate the pose; fine-tune the clearance on both sides of the mould to make it just right; replace the deformed template.

In addition, metal stamping mould there will be blanking deflection, stroke interference, die deformation and other issues, can be repaired one by one through the following methods. The semi-tilt problem may be caused by insufficient punch strength, the size of the punch too close to the head, resulting in an imbalance of side forces, the size of the punch can be shortened or increased heel length, under the influence of interference, check the correctness of die size and position, the contact degree after combination, the correctness of die setting, etc. One of the easiest ways to do this is to replace the die holder, otherwise the unbalanced parts will be corrected by grinding.