Maintenance methods for production molds

Normal production of molds, reducing faults and quality issues, and extending the service life of molds.
Scope of application: Molds used in mass production in the injection molding department, excluding trial molds.
Daily maintenance
Each shift (12H) is maintained by the responsible technician once and recorded in the 'Work Day Report'.
maintenance program:
Wipe and clean the adhesive wire and dirt on the front and rear mold surfaces;
Check if the spring, thimble, and travel position are stuck, burned, or broken, and if so, remove the mold for repair;
Check if the water transportation is blocked, and if there is any, it should be unblocked;
Add butter to the movable parts such as the thimble, row position, guide pillar, and guide sleeve.
Regular maintenance
Divide the modules for each maintenance according to the size of the injection molding machine model, and calculate the output recorded in the Production Order by dividing it by the number of holes. The maintenance is carried out by the mold repair team and recorded by the mold administrator on the Mold Resume:
30T~100T: maintenance every 60000 molds produced
150T~160T: maintenance every 50000 molds produced
220T~350T: maintenance every 40000 molds produced
maintenance program:
P/L surface adhesive wire, dirt wiping and cleaning;
Check if the spring, thimble, and travel position are stuck, burned, or broken, and if so, remove the mold for repair;
Check if the water transportation is blocked, and if there is any, it should be unblocked;
Add butter to the movable parts such as the thimble, row position, guide pillar, and guide sleeve;
Disassemble the thimble, position, core pulling, check for burns, fractures, severe wear, etc. If any, repair or replace them;
Cleaning of exhaust slots and holes, and adding exhaust to areas with trapped gas and burnt black;
Correction of damaged and worn parts.
Appearance maintenance:
The appearance maintenance is carried out by the mold administrator and upper and lower mold technicians
maintenance program:
Apply paint on the outer side of the mold to prevent rusting;
When dropping the mold, the mold cavity should be sprayed with anti rust oil;
When storing, it should be tightly closed to prevent dust from entering the mold CORE.
Precautions for mold maintenance
The active parts must be refueled for daily maintenance;