Injection molding is a kind of processing method used in batch production of some complicated parts. The detailed principle refers to: the plastic raw materials which are melted by heat are pushed into the cavity of the plastic mold by the screw of the injection molding machine and then cooled and solidified to obtain the plastic forming products.
The plastic mold consists 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. During injection molding, the moving mold and the fixed mold are closed to form the pouring system and cavity, and the moving mold and the fixed mold are separated to take out the plastic products.
Although the structure of the mold may vary greatly due to the type and function of the plastic, the shape and structure of the plastic products and the type of the injection machine, the basic structure is the same. The mold is mainly composed of pouring system, temperature regulating system, forming parts and structural parts. The pouring system and molding parts are the parts that touch the plastic directly, and change with the plastic and products. They are the most complex and the most changeable parts in the plastic mold, which require the highest processing finish and precision.
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