When the mold is opened, the movable mold


When the mold is opened, the movable mold and the fixed […]

When the mold is opened, the movable mold and the fixed mold are separated, thereby taking out the plastic part, which is called a single-part mold, which is also called a double-plate mold (two-plate mold). It is the simplest and most basic form of injection mold. It can be designed as a single cavity injection mold or a multi-cavity injection mold. It is the most widely used injection mold.

Double-section injection mold

The double-split surface injection mold has two parting surfaces. Compared with the single-part type injection mold, the double-part molding mold adds a partially movable intermediate plate (also called a movable gate plate) in the fixed mold part. Pipe fitting mould It is equipped with gates, runners and other parts and components required for mold setting, so it is also called three-plate type (moving formwork, intermediate plate, fixed formwork) injection mold, which is often used for single-point gate feeding. An injection mold of a cavity or a multi-cavity, when the mold is opened, the intermediate plate is separated from the fixed plate by a fixed distance on the fixed guide column, so that the pouring system aggregate is taken between the two templates. The double-divided surface injection mold has a complicated structure, high manufacturing cost, and difficult processing of parts, and is generally not used for molding large or extra large plastic products.

Injection mold with lateral splitting and core pulling mechanism

When the plastic part has side holes or undercuts, it needs to be formed by a laterally movable core or slider. After injection molding, the movable mold is first moved downward by a distance, and then the inclined section of the bending pin fixed on the fixed template forces the slider to move outward, and at the same time, the push rod of the demolding mechanism pushes the pusher plate to make the plastic part self-shaped. Take off the core.

Injection mold with movable molded parts

Due to some special structure of the plastic parts, it is required to set movable molding parts such as movable punches, movable female molds, movable inserts, movable thread cores or rings, etc., and the plastic parts can be released during demolding. Remove the mold together and separate it from the plastic part.