A combined plastic mold for compression molding, extrusion molding, injection molding, blow molding and low foaming molding, which mainly includes a concave mold with a variable cavity composed of a concave mold combined substrate, a concave mold component and a concave mold combined card board, and a convex mold with a variable core composed of a convex mold combined substrate, a convex mold component, a convex mold combined card board, a cavity cutting component and a side cutting combination board. The coordinated change of mold convex, concave mold and auxiliary molding system. Can be processed in different shapes, different sizes of the series of plastic parts. Plastic processing industry and plastic molding machine matching, give plastic products with complete configuration and precise size of the tool. Due to the variety of plastics and processing methods, the structure of plastic molding machines and plastic products is complicated and simple, so the types and structures of plastic molds are also diverse.
With the rapid development of the plastics industry and the continuous improvement of the strength of general and engineering plastics, the application range of plastic products is also expanding, and the amount of plastic products is also rising.
Plastic mold is a tool for the production of plastic products. It consists of several sets of parts, this combination has a molding cavity. During injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the molding cavity, and cooled and shaped in the cavity. Then the upper and lower molds are separated, and the products are ejected from the mold cavity and left the mold through the ejection system. Finally, the mold is closed again for the next injection molding. The whole injection molding process is carried out circularly.
The general plastic mold is composed of two parts: the moving mold and the fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. In injection molding, the movable mold and the fixed mold are closed to form the pouring system and the cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic products.
Although the structure of the mold may vary due to the variety and performance of the plastic, the shape and structure of the plastic products, and the type of injection machine, the basic structure is the same. The mold is mainly composed of gating system, temperature control system, molding parts and structural parts. Among them, the gating system and molding parts are in direct contact with the plastic, and change with the plastic and products. It is the most complex and the largest change in the mold, and requires the highest processing finish and precision.
The gating system refers to the runner part before the plastic enters the cavity from the nozzle, including the main runner, the cold material cavity, the shunt channel and the gate. Molded parts refer to various parts that form the shape of the product, including moving mold, fixed mold and cavity, core, molding rod and exhaust port.
Driven by the high-tech drive and the application demand of pillar industries, China's plastic molds have formed a huge industrial chain. From the upstream raw and auxiliary materials industry and processing and testing equipment to the downstream machinery, automobiles, motorcycles, home appliances, electronic communications, building materials and other major application industries, the development of plastic molds is full of vitality.
With the rapid development of China's automobiles, home appliances, electronic communications, and various building materials.
