The service life of plastic molds is closely related to proper maintenance. In reality, there are too many cases of mold scrapping due to improper maintenance. Xujin Company has been working on molds for 20 to 30 years, and it is difficult to remember how many such accidents have occurred. Some molds have been developed for over 100000 yuan, but not many products have been produced, but the molds have become torn apart, which is a great pity. Below is a summary of several basic knowledge on proper maintenance of plastic molds, in order for customer plastic mechanics to develop basic maintenance habits and extend the service life of molds:

1、 Maintenance of molds before production

A. The surface of the mold must be cleaned of oil and rust, and the cooling water holes of the casting mold must be checked for foreign objects and blocked waterways

B. It is necessary to check whether the arc in the mold adhesive sleeve is damaged, whether there are residual foreign objects, whether there are any abnormalities in the moving parts, and whether the action is smooth

2、 Maintenance of molds during production

1. Check all guide pillars and guide sleeves of the mold every day for damage, including mold guide pillars, line positions, and other components. Regularly refuel and maintain them, and maintain them twice a day during commuting

2. Clean the mold parting surface and exhaust groove of foreign objects such as glue, foreign objects, and oil, and check if the ejector pin of the mold is abnormal and regularly oil it Clean the parting surface and runner surface twice a day. The guide tip, bushing, and position determine the oil supply to the tip once a day.

3. Regularly check if the waterways of the mold are unobstructed and tighten all fastening screws

4. Check if the limit switch of the mold is abnormal, and if the inclined pin and inclined top are abnormal

3、 Maintenance of shutdown molds

1. Before stopping the machine, the cooling water circuit must be closed first, the residual water in the water circuit inside the mold must be blown clean, and the surface of the mold must be checked for any residual rubber threads, foreign objects, etc. After cleaning them up, anti rust agents must be evenly sprayed, and relevant records must be accurately filled out