A composite plastic mold for compression molding, extrusion molding, injection molding, blow molding and low foaming molding mainly comprises a mold cavity which is composed of a concave mold compound substrate, a concave mold assembly and a concave mold combination card plate, The utility model is characterized in that a concave mold with a variable core which is composed of a convex combination base plate, a convex mold assembly, a convex combination card board, a cavity cutting assembly and a side cut composite board. Mold convex, die and auxiliary forming system of coordination changes. Machinable different shapes, different sizes of plastic series. Plastic processing industry and plastic molding machines, plastic products given to the full configuration and precise size of the tool. Due to the variety of plastic materials and processing methods, the structure of plastic molding machines and plastic products is also different, so the types and structures of plastic molds are also varied. With the rapid development of the plastics industry and the ever-increasing strength of GM and engineering plastics, the application of plastic products is also expanding, and the amount of plastic products is also on the rise.
Plastic mold is a kind of tool for producing plastic products, it is composed of several parts of parts, this combination has a molding cavity. Injection molding, the mold is mounted on the injection molding machine, molten plastic is injected into the mold cavity, and in the cavity cooling stereotypes and then separate the upper and lower mold, the top of the system through the ejection system from the mold to leave the mold, and finally closing the mold The next injection, the entire injection process is carried out in a loop.
General plastic mold consists of a moving mold and a fixed mold. The movable mold is installed on the moving template of the injection molding machine and the fixed mold is installed on the fixed mold of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic product.
Although the structure of the mold may vary due to the variety and properties of the plastic, the shape and structure of the plastic, the type of the injection machine, etc., the basic structure is the same. temperature control system, forming parts and structural components. One casting system and molding parts are in direct contact with the plastic part, and with the plastic and products change, is the most complex mold, the most varied, requiring the highest processing finish and accuracy of the part.
Gating system refers to the plastic part of the runner from the nozzle into the cavity, including the main runner, cold material hole, runner and gate. Forming parts refers to the various shapes that make up the product, including moving parts, fixed molds and cavities, cores, forming rods and exhaust vents. Under the impetus of high-tech drive and pillar industry application demand, China's plastic mold has formed a huge industrial chain. From the upstream raw material and auxiliary materials industry and processing and testing equipment to downstream machinery, automobiles, motorcycles, home appliances and electronic communications , Building materials and other major applications industries, the development of plastic mold vitality.