How to maintain the injection mold?

Author: MULAN -Plastic Molding Manufacturer

As long as the equipment has its service life, as long as we maintain it regularly, it can naturally extend its service life. Next, the injection molding factory Xingye Xiaobian will tell you how to effectively maintain the injection mold. 1. Processing enterprises should first equip each pair of molds with resume cards and record them in detail. Count its use, care (lubrication, cleaning, rust removal) and damage, and you can find out which parts are damaged according to the card.

Wear levels to provide information to find and fix problems, as well as mold forming process parameters. The materials used in the product can reduce the mold testing time and improve production efficiency. 2. The processing enterprise should test the various properties of the mold when the injection molding machine and the mold are running normally, and measure the size of the final molded part.

Through this information, it is possible to determine the current status of the mold, find out the damage of the cavity, core, cooling system and parting surface, and judge the damage and maintenance measures of the mold according to the information provided by the plastic parts. 3. Focus on tracking and testing several important parts of the mold: the ejector and guide parts are used to ensure the opening and closing movement of the mold and the ejection of plastic parts. If any of these parts get stuck due to damage, it will cause downtime.

Therefore, it is necessary to keep the mold thimble and guide post lubricated (choose the most suitable lubricant), regularly check whether the surface of the thimble and guide post is deformed or damaged, and replace it in time if found; Coat professional anti-rust oil on the guide parts, and pay special attention to protecting the elastic strength of the mold bearing parts with gears, racks and springs to ensure that they are always in good working condition. With the extension of production time, scale, rust, sludge and algae are easily deposited in the cooling channel, which reduces the cross section of the cooling channel, narrows the cooling channel, greatly reduces the heat transfer rate between the cooling liquid and the mold, and increases production cost. Therefore, care should be taken to clean the cooling channels.

Maintenance of heating and control systems is very important for hot runner molds because it helps prevent production failures. Therefore, after each production cycle, the strip heaters, rod heaters, heating probes and thermocouples on the mold should be measured with an ohmmeter. If it is damaged, it should be replaced in time, compared with the mold resume, and recorded well, so that problems can be found in time and countermeasures can be taken.

4. Attention should be paid to the surface maintenance of the injection mold, which will directly affect the surface quality of the product, and corrosion must be prevented. Therefore, choose one that is very suitable. high quality.

Professional anti-rust oil is especially important. After the mold design completes the production task, the residual injection molding should be carefully removed. If there are rust spots, it should be ground and polished, and sprayed with anti-rust oil.

The above is about the maintenance of injection molds. For more information about injection molds, please visit the official website of Xingye: http://www.dgxingyesj.com/.