Focus on tracking and testing several important parts of the mold: the ejector and guide components are used to ensure the opening and closing movement of the mold and the ejection of the plastic part. If any part of the mold is stuck due to damage, it will cause production to stop, so it should be kept frequently. Lubrication of the mold thimble and guide post (the most suitable lubricant should be selected), and regularly check whether the thimble, guide post, etc. are deformed and surface damage. Once found, replace it in time; after completing a production cycle, the working surface , Moving and guiding parts are coated with professional anti-rust oil, and special attention should be paid to the protection of the elastic strength of the bearing parts of gears, rack molds and spring molds to ensure that they are always in the best working condition; as the production time continues , The cooling channel is easy to deposit scale, rust, silt and algae, so that the cross-section of the cooling channel is reduced, the cooling channel is narrowed, and the heat exchange rate between the coolant and the mold is greatly reduced, and the production cost of the enterprise is increased. Therefore, the cleaning of the flow channel Attention should be paid; for the hot runner mold, the maintenance of the heating and control system is helpful to prevent the occurrence of production failures, so it is particularly important.

Therefore, after each production cycle, the band heaters, rod heaters, heating probes and thermocouples on the mold should be measured with an ohmmeter. If they are damaged, they should be replaced in time and checked with the mold history. Compare and keep records so that problems can be discovered in time and countermeasures can be taken.