There are 6 categories of plastic molds, do you know all of them

  • 2021-08-24

Plastic molds are tools that are matched with Plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise dimensions. According to the different molding methods, it can be divided into different types of molds.

1. Injection Mold

It is mainly a molding mold that is most commonly used in the production of thermoplastic parts. The corresponding processing equipment of the injection mold is an injection molding machine. The plastic is first heated and melted in the heating cylinder at the bottom of the injection molding machine, and then melted in the screw or column of the injection molding machine. Driven by the plug, it enters the mold cavity through the nozzle of the injection molding machine and the pouring system of the mold, the plastic is cooled and hardened to form, and the product is demolded.

2. Blow Mold

A mold used to form plastic container hollow products (such as beverage bottles, daily chemical products, etc.) The principle mainly includes extrusion blow molding hollow molding, injection blow molding hollow molding, injection stretch blow molding hollow molding (commonly known as injection stretch blow), multilayer blow molding hollow molding, sheet blow molding hollow molding and so on.

3. Extrusion die

A type of mold used to mold and produce continuous-shaped plastic products, also called extrusion molding heads, is widely used in the processing of pipes, rods, monofilaments, plates, films, wire and cable coatings, profiled materials, etc.

4. Blister mold

A mold that uses plastic plates and sheets as raw materials to form some simpler plastic products. The principle is to use a vacuum or compressed air molding method to make the plastic plates and sheets fixed on the concave or convex mold be heated. Under the condition of softening, it is deformed and attached to the cavity of the mold to obtain the desired molded product, which is mainly used in the production of some daily necessities, food, and toy packaging products.

5. Compression Mold

It includes two structural mold types: compression molding and injection molding. They are a type of molds mainly used to form thermosetting plastics, and their corresponding equipment is a pressure forming machine.

6. High-expanded polystyrene molding die

It is a mold for using expandable polystyrene (beads composed of polystyrene and foaming agent) raw materials to form various desired shapes of foam packaging materials.


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