The Basic Composition Of Plastic Molds

A plastic mold is a tool for producing plastic products. It consists of several sets of parts, each with a molding cavity inside. During injection molding, the mold is clamped onto the injection molding machine, and molten plastic is injected into the mold cavity, cooled and shaped inside the cavity. Then, the upper and lower molds are separated, and the product is ejected from the mold cavity through the ejection system. Finally, the mold is closed for the next injection molding, and the entire injection molding process is cyclic.
A general plastic mold consists of two parts: a moving mold and a 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. During injection molding, the movable and fixed molds are closed to form the pouring system and cavity. When opening the mold, the movable and fixed molds are separated to remove the plastic product.
The structure of the mold may vary greatly due to differences in the variety and performance of plastics, the shape and structure of plastic products, and the type of injection machine, but the basic structure is consistent. The mold mainly consists of a pouring system, a temperature control system, formed parts, and structural parts. The pouring system and formed parts are the parts that come into direct contact with plastic and vary with the plastic and the product. They are the most complex and variable parts in plastic molds, requiring the highest processing smoothness and accuracy.