Injection mold maintenance points for attention


As the main production tool of plastic products, inject […]

As the main production tool of plastic products, injection mold determines the shape, specification, size and appearance roughness of plastic parts. The material of injection mold is generally steel, which consists of front mold/back mold.

Because injection molds are special, precise, and easily damaged, it is particularly important to protect them. The general summary is as follows:

Anti-rust: Prevent the injection mold from rusting due to leakage, condensation, rain, fingerprints, etc.
Anti-collision: Prevent the mold from being damaged due to the breakage of the injection mold and the failure to spring back in place.
Burr: prevent mold burr caused by cloth wipe/material punch/hand wipe/nozzle knife touch.
Missing parts: Prevent the injection mold from damaging the mold due to missing parts such as tie rods and washers during use.
Anti-pressure injury: Prevent the injection mold from being locked due to product residues and cause mold pressure injury.
Underpressure: Prevent damage to the injection mold due to too low pressure.

Among them, the proportion of injection mold damage caused by broken ejector pins, incomplete ejector pins, residual products in the mold, and lack of auxiliary parts is relatively high, and due to frequent occurrences, more than 85% of injection mold damages are caused by this, resulting in injection molding. The maintenance cost of the mold is generally relatively high, so how to avoid such a situation is directly related to the interests of the injection molding industry.