General definition of mold: In industrial production, metal or non-metal materials are used to produce parts or articles of the desired shape by pressure using various presses and special tools mounted on the press. These special tools are collectively referred to as molds.
Description of the injection molding process: The mold is a tool for producing plastic products. It consists of several sets of parts with a molded cavity. During injection molding, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, and is cooled and shaped in the cavity, and then the upper and lower molds are separated, and the product is ejected from the cavity from the cavity through the ejection system, and finally the mold is closed. For the next injection, the entire injection molding process is cyclic.