Abstract
Plastic products are an essential part of our daily life, whether from clothing, food, housing and industrial production, have occupied a large market. With its light weight, low cost and high plasticity, plastics greatly improve the convenience of people's life. Modern people's living habits are increasingly inseparable from plastic products, which have a great development space. As a common plastic mold, bow fold has a high practical value in production.
This design is the plastic mold design of the bow fold. First, the development status, development trend and research background of the plastic mold industry are briefly introduced. Then, the performance of the plastic part materials is analyzed. The materials are selected according to the needs. The mold materials must be nontoxic and tasteless, have good formability and meet the production and use standards. The next step is to determine the layout of the cavity, the location of the parting surface and the selection of the injection machine. Moreover, the designed mold has threads, so the thread demoulding mechanism must be adopted to ensure the production efficiency, as well as the quality and accuracy of the product, so as to meet the requirements of the manufacturer. The most important thing is to design the pouring system and mold cooling system. The unreasonable design of the pouring system will directly affect the quality of products. Similarly, if the design of mold cooling system is scientific and reasonable, it can not only ensure the safe production of qualified products, but also reduce energy consumption, reduce production costs and improve production efficiency. But the temperature of plastic mold is not very high, so water is the most suitable choice as the cooling medium. Finally, the
II