The precise positioning hole of the mold core is damaged due to the frequent and repeated processing of the mold core by the plastic machinery and equipment group molds, resulting in a large gap after assembly (releasing after assembly) or uneven gap (causing accurate positioning error). It will lead to the worse the cross-sectional appearance after shearing and pressing, and the die base is easy to break, resulting in burrs, etc., which can be checked through the cross-sectional condition of the hedging transaction after cutting, and appropriate clearance adjustment can be made. When the gap is hour, the cross section is small. When the gap is large, the cross section is large and the burr is large. The effective gap can be obtained by moving. It is convenient for subsequent maintenance work. Usually, manufacturing should pay attention to the collection and storage of the initial abrasive belt in the best condition. If the production is not smooth or the abrasive tool causes genetic variation, it can be used as a reference for abrasive tool maintenance. In addition, the auxiliary system software, such as whether the ejector pin is damaged, whether it can eject the material, whether the guide pin and the shaft sleeve are damaged, should pay attention to inspection and maintenance.

A weekly work plan, monthly plan for the purpose of grinding hardware accessories, or a maintenance plan for leather machinery is based on the measurement and verification number. Persistently implementing the abrasive tool maintenance program will double the service life of the abrasive tool.