- The punch is prone to breakage, bend and gnaws during the use of the plastic Injection mold, and the punch sleeve is generally gnawed. The damage to the punch and sleeve is generally replaced with parts of the same specification. The parameters of the punch mainly include the size of the working part, the size of the installation part, and the length dimension.
- Springs and other elastic parts are easy to be damaged during use, and usually break and deform. The method adopted is to replace. In the process of replacement, you must pay attention to the specification and model of the spring. The specification and model of the spring are confirmed by the three items of color, outer diameter and length. Only when the three items are the same can they be replaced. The quality of imported spring is better.
- The material of the main working parts of the mold is improperly selected. The material has poor performance and is not wear-resistant; the die steel has not been refined and has a large number of smelting defects; the convex and concave molds, forging blanks and the forging process are not perfect, and there are hidden dangers of heat treatment.
- Pressing parts such as press plates, Uniglue, etc., unloading parts such as stripping plates, pneumatic ejectors, etc. During maintenance, check the relationship between the parts of each part and whether there is damage, repair the damaged part, check whether there is air leakage in the pneumatic jacking, and take measures for the specific situation. If the trachea is damaged, replace it. It is necessary to focus on tracking and testing several important parts of the mold.
- Fasten the parts, and check whether the fastening parts are loose or damaged, the method adopted is to find the parts of the same specification for replacement.
