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In order to extend the service life of the company's injection molds, produce more products, and create greater economic benefits, the following maintenance plan is formulated:

1. Inspection and maintenance during mold installation

1. Clean the upper and lower surfaces of the injection mold before installing the mold to ensure that the installation surface of the injection mold and the worktable of the press are properly matched.

 2. After the mold is installed, the mold is opened, and the mold guide mechanism and the surface of the mold cavity are cleaned to ensure the quality of the manufactured parts.

3. Lubricate or apply grease to each sliding part of the mold.

4. Check and maintain the side guards, and clean the punching waste channels and holes.

5. Check the safety parts such as mold safety pins, safety screws, etc., find problems, and repair and replace them in time.

2. Maintenance during production

1. Regularly lubricate the press ring, rounded corners of the drawing die, the edge of the trimming die, and the part of the flanging knife block.

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

3. Often observe and feel the use state of the mold during production, if any abnormality is found, immediately shut down for inspection and eliminate it in time. After troubleshooting, proceed to production.

3. Maintenance after production

1. After the production is over, a comprehensive inspection of the injection mold is required.

2. Completely wipe the injection mold to clean up the waste and debris in the mold to ensure that there is no waste in the waste box.

3. Feedback the problems found in the use of injection molds truthfully, and make a record in the handover order or notify the repair personnel to carry out repairs.

Fourth, the first and second maintenance of the mold

1. The first-level maintenance of the mold is performed by the production operator. The main contents of maintenance are cleaning, lubrication and inspection.

2. The secondary maintenance work of the mold is completed by the mold repair personnel, and records are made according to the maintenance situation. Main contents of secondary maintenance:

a. Polish the rounded corners of the mold. If there are pressure pits, the mold should be polished.

b. Repair and restore the guiding parts found to be defective.

c. Repair welding and repair the die edge collapse and edge collapse during the use of the mold.

d. Replace damaged and invalid springs and other elastic parts (note the specifications and models of springs).

e. Replace the punch sleeve which is broken, bent, gnawed and damaged during use of the die.

f. Check whether the fastening parts are loose or damaged. If there is, replace it.

g. Check whether the pressure plate and discharge plate are damaged, and repair the damaged parts.

h. Check for leaks in the pneumatic system; if so, repair and replace.

5. Maintenance of injection mold for a long time

    For long-term injection molds, maintenance should be arranged every two months by opening the injection mold to remove dust and rust and oiling all parts of the injection mold.