When designing and manufacturing custom plastic molding, there is a close relationship with the process of plastic processing. The success of plastic processing depends largely on the mold design effect and mold manufacturing quality. Custom plastic molding design is based on the correct Based on plastic product design.

The structural elements to be considered in custom plastic molding design are:

1. Parting surface, that is, the contact surface of the concave mold and the convex mold when the mold is closed. The selection of its location and form is affected by factors such as the shape and appearance of the product, wall thickness, molding method, post-processing technology, mold type and structure, demolding method, and molding machine structure.

2. Structural parts, that is, sliders, inclined tops, straight top blocks, etc. for complex molds. The design of structural parts is very critical, which is related to the life of the mold, processing cycle, cost, product quality, etc. Therefore, designing the core structure of a complex mold requires higher comprehensive ability of the designer, and pursues as simple, durable and economical as possible Design.

3. Mould accuracy, that is, avoiding jamming, precise positioning, guide post, positioning pin, etc. The positioning system is related to product appearance quality, mold quality and life. Different positioning methods are selected according to different mold structures. The positioning accuracy control mainly depends on processing. The internal mold positioning is mainly considered by the designer to design a more reasonable and easy to adjust positioning. the way.

4.Pouring system, that is, the feeding channel from the injection molding machine nozzle to the cavity, including the main channel, the runner, the gate and the cold cavity. In particular, the location of the gate should be selected so that the molten plastic fills the cavity under good flow conditions, and the solid runners and cold gate materials attached to the product are easy to eject from the mold and be removed when the mold is opened.

5. Plastic shrinkage and various factors that affect the dimensional accuracy of the product, such as mold manufacturing and assembly errors, mold wear, etc. In addition, when designing compression molds and injection molds, the matching of process and structural parameters of the molding machine should also be considered. Computer-aided design technology has been widely used in custom plastic molding design.

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