Plastic processing industry and plastic molding machine matching, giving plastic products with complete configuration and accurate size of tools.

Due to the variety of plastics and processing methods, the structure of plastic molding machines and plastic products is complex and simple, so the types and structures of plastic molds are also diverse.

General classification of moulds: plastic moulds and non plastic moulds:

??? (1) non plastic molds include: casting mold, forging mold, stamping mold, die casting mold, etc.

?? B. forging die - automobile body

?? C. stamping die computer panel

Die casting die - superalloy, cylinder block

?? (2) plastic mold

?? according to different production processes and products, it can be divided into:

A. Injection mold -- TV shell, keyboard button (widely used)

D. transfer molding die integrated circuit products

Technical application of plastic mould products

The utility model relates to a combined plastic mold for pressing, extruding, injection, blow molding and low foaming molding, which mainly comprises a concave mold with a variable cavity composed of a concave mold combined base plate, a concave mold component and a concave mold combined card, and a convex mold with a variable core composed of a convex mold combined base plate, a convex mold component, a convex mold combined card, a cavity cutting component and a side cutting combined plate.

Coordinate change of punch, die and auxiliary forming system. It can process series plastic parts of different shapes and sizes.

The shape of the mould determines the shape of these products, and the processing quality and precision of the mould also determine the quality of these products. Due to the different materials, appearance, specifications and uses of various products, the mold is divided into casting mold, forging mold, die casting mold, stamping mold and other non plastic mold, as well as plastic mold.

In recent years, with the rapid development of plastic industry and the continuous improvement of strength and precision of general and engineering plastics, the application scope of plastic products is also expanding, such as household appliances, instruments and meters, building equipment, automobile industry, daily hardware and many other fields, the proportion of plastic products is increasing rapidly. A well-designed plastic part can often replace multiple traditional metal parts.

The trend of plasticization of industrial products and daily products is on the rise.

??? 2. General definition of mould: in industrial production, all kinds of presses and special tools installed on the presses are used to make parts or products of required shapes of metal or non-metal materials through pressure. Such special tools are collectively called moulds.

?? 3. Injection process description: mold is a tool for producing plastic products. It consists of several groups of parts, which have a forming cavity. During injection molding, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, cooled and shaped in the cavity, then the upper and lower molds are separated, the products are ejected from the mold cavity through the ejection system, and then the mold is closed for the next injection, the whole injection process is cyclic.

4. (1) the mold line is demoulded together with the product when the mold is opened, the design is simple, easy to process, and the cost is low, so many people use the large water port system for operation.

(3) hot runner mold:

It is difficult to work and the cost of mould is high.