It is a kind of plastic part or a mold for mass production, which is often used to form one or more plastic parts. Plastic mold is a tool matched with plastic molding machine in plastic processing industry to give plastic products complete configuration and accurate size. The cavity of a plastic mold is composed of a female mold part called a mold cavity and a male mold part called a mold core. The plastic mold is installed on the injection molding machine and fills the mold cavity according to the following time sequence (usually automatic): 1. Mold closing; 2. Inject (hot, almost flowing) plastic into the mold cavity; 3. Keep the mold closed until the plastic is cooled to be ejected; 4. Mold opening; 5. Eject plastic products; 6. If necessary, the injection molding machine can extend the mold opening (MO) time for the next (injection) week

The common problems in plastic mold processing are: 1. If the flying mold is not good, the product will have a sharp edge; 2. Whether the cooling channel can quickly and evenly cool the mold; 3. The design of flow channel should be reasonable and balanced, and the exhaust should be done well; 4. Do not install less wrong parts in the assembly mold, and the movement between modules should be smooth; 5. The size and plastic materials have shrinkage, and the mold size should be multiplied by the material shrinkage; 6. The size of the rubber inlet is appropriate, which makes the product separation difficult and the injection of too small rubber parts is not satisfied; 7. In terms of demoulding and ejection, whether the demoulding slope of the cavity is enough, the surface is polished well, the arrangement of ejector pins should be reasonable, and the stroke of inclined top position should be enough. The high precision, high consistency, high yield, low energy consumption and low consumable