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Maintenance skills and methods of injection mold
发布日期: 2019.09.27 Back to list source: Release date: 2019.09.27

How to judge the damage of the mold and the situation of maintenance measures. We can allow processing enterprises to test the various performances of the mold under the normal operation of the injection molding machine and mold, and measure the size of the final molded plastic part. Finally, this information can be used to determine the current status of the mold and find out the cavity. , Core, cooling system and parting surface damage. These values are calculated accurately.

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At the same time, several important parts of the mold must be tracked and tested. It is mainly ejection parts and guide parts. It is necessary to know that the function of ejection and guide parts is to ensure the mold opening and closing movement and ejection of plastic parts. If any part of it is stuck due to damage, it may lead to suspension of production. The mold thimble and guide post are lubricated, and the thimble and guide post are regularly checked for deformation and surface damage. Once found, they should be replaced in time. This can't be tolerated.

For maintenance, after completing a production cycle, apply professional anti-rust oil on the working surface, movement, and guide parts of the mold. Pay particular attention to the elastic strength of the parts with gears, rack mold bearings, and spring molds. Protection to ensure it is always in optimal working condition.

Clearing up the flow channel requires some effort. As production time continues, scales, rust, silt, and algae are deposited on the cooling channels, which make the cooling channel cross-section smaller and the cooling channels narrow, which greatly reduces the heat exchange rate between the coolant and the mold, increasing the enterprise. Production costs, therefore, attention should be paid to the cleaning of the flow channel.

For hot runner molds, the maintenance of the heating and control system is helpful to prevent production failures, so it is very important. Therefore, after the end of each production cycle, the belt heater, rod heater, heating probe and thermocouple on the mold should be measured with an ohmmeter. If it is damaged, it should be replaced in time, and it should be related to the mold history. Tables are compared and recorded in order to identify problems in a timely manner, and then take corrective action.

The maintenance of the surface of the mold can not be ignored, it directly affects the surface quality of the product, the focus is to prevent rust, so it is particularly important to choose a suitable, high-quality, professional anti-rust oil. After the mold completes the production task, different methods should be used to carefully remove residual injection molding according to different injection molding. Copper rods, copper wires and professional mold cleaning agents can be used to remove residual injection molding and other deposits in the mold, and then air-dry.

It is forbidden to use hard objects such as iron wires and steel bars to clean up, so as not to scratch the surface. If there are rust spots caused by corrosive injection molding, use a grinder to grind and polish, and spray professional anti-rust oil, and then store the mold in a dry, cool, and dust-free place. Only in this way can it be thoroughly air-dried and stored. There are no short cuts to the maintenance of injection molds, and they all follow the maintenance methods in a down-to-earth manner.

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