What is the structural principle of plastic molds?

Plastic injection molding is a processing method for mass production of some unorganized parts. The specific principle is: the product is taken out from the closed cavity, and the mold removal line is in a horizontal relationship with the movement direction. The raw material of the heated ablated plastic is pushed into the cavity of the plastic mold from the screw of the injection molding machine, and the plastic molded product is obtained after cooling and solidification. Due to the need or convenience of mold processing, the molded part is divided into several processed parts, or several small parts are inserted, except for the main cavity, the remaining materials are made into sub-parts. The circular entrance can be called the core.