The maintenance methods of car plastic injection mould are divided into primary maintenance and secondary maintenance.

　　First-level maintenance of the mold:

　　The primary maintenance of car plastic injection mould refers to the daily maintenance of the mould by the operator during production, the main contents are cleaning, lubrication and inspection.

　　1. Maintenance during mold installation

　　Before the mold is installed, the upper and lower surfaces of the mold should be cleaned to ensure that the mold installation surface and the press work surface are free from pressure injuries and the parallelism of the upper and lower installation surfaces of the mold during production.

　　After the mold is installed, open the mold and clean all parts of the mold, especially the guide mechanism. For the surface part mold, the profile surface is cleaned to ensure the quality of the part. Lubricate the sliding parts of the mold and apply grease. Inspection of all parts of the mold, especially parts. Such as side pins, screws, side guards, punching waste channels, etc.

　　2. Maintenance in production

　　During production, the corresponding parts of the automobile mold are regularly oiled. Such as the pressing ring and fillet of the drawing die; the edge part of the trimming die; the part of the flanging knife block, etc.

　　Regularly clean up the waste channel of the small hole of the trimming punching die.

　　Maintenance after production

　　After the production is over, a comprehensive inspection of the mold should be carried out.

　　The mold is thoroughly cleaned to ensure its cleanliness of the mold.

　　Clean up the waste in the mold to ensure that there is no waste in the waste box.

　　The use status of the mold and the situation after use are truthfully fed back to the mold subpoena.

　　Secondary maintenance of the mold:

　　The secondary maintenance of car parts mould refers to the regular and systematic maintenance of the mould according to the technical state and complexity of the mould. This maintenance work is completed by the mold repair personnel, and records are made according to the maintenance situation. The following describes the requirements and methods of the second warranty for different parts.