What is the classification of injection mold?

（1） Injection mold with single parting surface
When the mold is opened, the moving mold and the fixed mold are separated to take out the plastic part, which is called single parting surface mold, also called double plate mold. It is a basic form of injection mold. It can be designed as single-cavity injection mold or multi-cavity injection mold according to needs. It is a widely used injection mold.
（2） Injection mould with double parting surface
The double-parting surface injection mold has two parting surfaces. Compared with the single-parting surface injection mold, the double-parting surface injection mold adds an intermediate plate (also called the movable gate plate, on which there are gates, runners and other parts and components required for the fixed mold) that can be moved locally in the fixed mold part, so it is also called the three-plate (moving template, intermediate plate, fixed template) injection mold, It is often used in single-cavity or multi-cavity injection mold with point-gate feeding. When opening the mold, the intermediate plate is separated from the fixed template at a fixed distance on the guide pillar of the fixed mold, so as to take out the pouring system condensate between the two templates. The double-parting surface injection mold has complex structure, high manufacturing cost and difficult parts processing, and is generally not used for the forming of large or extra-large plastic products.
（3） Injection mold with side parting and core-pulling mechanism
When the plastic parts have side holes or side recesses, they need to be formed with laterally movable cores or sliders. After injection molding, the moving mold first moves downward for a certain distance, and then the inclined section of the bent pin fixed on the fixed template forces the slider to move outward. At the same time, the push rod of the release mechanism pushes the push plate to make the plastic part detach from the core.
（4） Injection mold with movable molding parts
Due to some special structures of plastic parts, the injection mold is required to set movable molding parts, such as movable punch, movable concave die, movable insert, movable thread core or ring, etc., which can be moved out of the mold together with the plastic parts during demoulding and then separated from the plastic parts.