What are the ways to improve the quality and accuracy of plastic molds

Update:15-10-2021
Summary:

Plastic molds are tools that are matched with plastic m […]

Plastic molds are tools that are matched with plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise dimensions. Due to the wide variety of plastics and processing methods, and the complex and simple structures of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. To improve the quality and accuracy of plastic molds, we must start from the following aspects.
1. The design of mold production should be reasonable
Choosing a better structural plan, the designer of the part must take into account the technical requirements of the part and its structure must conform to the manufacturability and feasibility of mold manufacturing.
Second, the design of the mold is very important
①. In addition to meeting customers' requirements for product quality, the selected mold materials must also consider the cost of the material and its strength within the set period. Of course, it must also be based on the type of mold, working methods, and processing. Factors such as speed and main failure modes are used to select materials.
②. When designing the mold structure, try to be as compact as possible, easy to operate, and ensure that the mold parts have sufficient strength and rigidity; when the mold structure allows, the corners of each surface of the mold parts should be designed as rounded transitions as much as possible to avoid stress concentrated.
③ In the design, the scope of disassembly and assembly must be reduced when repairing a certain part, especially when the wearing parts are replaced, the scope of disassembly and assembly should be reduced as much as possible.
Third, the mold manufacturing process is also an important part to ensure the quality of the mold
The processing method and processing accuracy in the plastic mold manufacturing process will affect the service life of the mold. The accuracy of each part directly affects the overall assembly of the mold. In addition to the accuracy of the equipment itself, it is necessary to improve the processing method of the parts and improve the technical level of the fitter in the mold grinding and matching process to improve the processing accuracy of the mold parts .
4. Surface strengthening of the main forming parts of the mold
Improve the surface wear resistance of mold parts, so as to better improve the quality of the mold. For surface strengthening, different strengthening methods should be selected according to different use molds.
Five, the correct use and maintenance of the mold is a major factor in improving the quality of the mold
The installation and debugging method of the plastic mold should be appropriate. In the case of hot runners, the power supply wiring must be correct, the cooling water circuit must meet the design requirements, and the parameters of the injection molding machine, die casting machine, and press in the mold production must meet the design requirements, etc. Wait.