During the continuous working process of the die, the wear of parts, deterioration of lubricant, water leakage and crushing of plastic materials are easily caused by the movement process, so the maintenance of the die is needed.

Mould maintenance is generally divided into routine maintenance and lower mould maintenance.

Daily maintenance of dies and moulds generally includes the following aspects:

Regular rust removal (appearance, PL surface, die cavity, core, etc.)

2. Regular re-lubrication (ejection mechanism, row position, etc.)

3. Regular replacement of wearable parts (pull rods, bolts, etc.)

4. Other points needing attention

The maintenance of the lower die of the die needs professional maintenance personnel to remove the die, and then carry out professional testing and protection of the die cavity and ejector pin.