Injection pipe mold daily maintenance points for attention

• 2026-01-23

In the production process of injection molding pipe fittings, the state of the mold directly affects the quality and production efficiency of the product. It is very important to do a good job in the daily maintenance of the injection pipe mold. The following is a summary of the relevant points for attention.

1. cleaning and maintenance

cleaning is the basic work of the daily maintenance of the mold. After each production, the oil, residue and impurities on the surface of the mold should be removed in time. Use special cleaning tools, such as soft cloth, brush, etc., to avoid scratching the mold surface. For key parts such as mold cavities and cores, carefully clean up to ensure that there is no residual plastic debris. Because the residue will not only affect the accuracy of the mold, but also may cause defects in the product, such as lack of material, burrs and other problems. At the same time, the cooling water channel of the mold is cleaned regularly to prevent scale and impurity blockage, ensure the cooling effect, and avoid product deformation due to uneven cooling.

2. lubrication maintenance

the various moving parts of the mold need to be lubricated on a regular basis. Select the appropriate lubricant and add it according to the specified lubrication cycle and lubrication point. For example, the guide post, guide sleeve and other components to ensure adequate lubrication, reduce wear, so that the mold opening and closing action smoothly. When adding lubricants, pay attention to moderate dosage to avoid too much or too little. Too much lubricant may contaminate the mold cavity and affect product quality; too little can not play a good lubrication effect, accelerate component wear.

3. check fastening

regularly check whether the bolts, nuts and other fasteners on the mold are loose. During the injection molding process, the mold will be subjected to greater pressure and vibration, which will easily cause the fasteners to loosen. Once looseness is found, it should be tightened in time to prevent the mold from shifting during the production process and affect the dimensional accuracy of the product. At the same time, check whether the positioning pins, positioning holes and other positioning parts of the mold are worn. If there is wear, replace or repair them in time to ensure the accurate positioning of the mold.

Appearance inspection of 4. die

before starting up every day, the appearance of the mold should be fully inspected. Check whether the mold has cracks, deformation, etc. If it is found that there are slight scratches or damage on the surface of the mold, it should be repaired in time to prevent further expansion of the damage. For some parts that are easy to wear, such as the ejector rod, the slider, etc., it is necessary to check the degree of wear and tear, and determine whether it needs to be replaced according to the wear and tear.

5. storage and maintenance

when the mold is not used temporarily, choose the appropriate storage environment. The storage place should be dry and ventilated to avoid moisture and rust of the mold. At the same time, the mold should be treated with anti-rust, coated with anti-rust oil, and wrapped with anti-rust paper or plastic film. During the storage process, it is necessary to avoid collision and extrusion of the mold, and regularly check and maintain the stored mold.

6. Record and Summary

establish a mold maintenance record file to record in detail the time, content, problems found and handling of each maintenance. Through the analysis of records, summarize the use of mold rules and maintenance experience, timely find potential problems, and take appropriate preventive measures.

In short, the daily maintenance of injection mold is a meticulous and long-term work. Only by doing a good job in the maintenance of each link can the service life of the mold be prolonged, the quality of the product and the stability of production be guaranteed, and the economic benefits of the enterprise be improved.