Inspection of metal mold guide part
Hardware mold maintenance, must be careful, patient, step-by-step, avoid blindly engaged in. When repairing the mould due to failure, it is necessary to attach a material belt to facilitate the inquiry of problems. Open the mold, take care of the belt, check the mold condition, confirm the cause of the failure, find out the problem, and then clean the mold before removing the mold. The force should be uniform when removing the mold. For the mold structure with the discharge spring between the fixed plate and the discharge plate and the discharge spring directly jacking on the inner guide pillar, the disassembly of the discharge plate should ensure that the discharge plate ejects evenly, and the inclination of the discharge plate may lead to the fracture of the punch in the mold.
It is necessary to check the fit clearance of guide pillar and guide sleeve, whether there are burn or wear marks, and whether the oil feeding state of mold guide is normal. Due to the wear of the guide parts and the damage of the precision, the precision of the die will be reduced, and problems will appear in all parts of the mold. Therefore, proper maintenance and regular replacement must be carried out. Check the accuracy of the guide part. If the guide pin is worn, it has lost the guiding accuracy and function of the material belt, and must be replaced. Check the condition of the spring (discharge spring and ejector spring, etc.) to see if it is broken, or if it has been used for a long time, but it has lost its original strength due to fatigue. Regular maintenance and replacement must be carried out, otherwise the mold will be damaged or the production will not be smooth
In the metal mold stamping production, the daily maintenance of the mold is very important, that is, daily attention to check whether the stamping machine and the mold are in normal state, such as the supply of stamping oil and the refueling of the guiding department. The inspection before the mold is put on the machine, the inspection of the cutting edge, and the confirmation of the locking of each part can avoid many unexpected accidents. Before maintenance, we must think before doing it, and carefully record and accumulate experience.