Plastic mold is a tool for plastic processing industry and plastic molding machine, which gives plastic products a perfect configuration and precise dimensions. Due to the complexity of plastic varieties and processing methods, and the complexity of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. According to different molding methods, plastic mold manufacturers can be divided into the following different mold varieties.

1.Blister mold

The plastic mold is a mold for forming some simpler plastic products using plastic plates and sheets as the material. The principle is to use a vacuum blast method or compressed air molding method to make the plastic plate fixed on the concave or convex mold, The film is deformed under the condition of heating and softening, and is pasted on the cavity of the mold to obtain the required molded product, which is mainly used for the production of some daily necessities, food, and toy packaging products. Due to the low pressure during molding, the plastic mold is mostly made of cast aluminum or non-metallic materials, and the structure is relatively simple.

2.Blow mould

Blow mold is a mold used to form hollow products of plastic containers (such as various packaging containers such as beverage bottles and daily chemical supplies). The blow molding methods are mainly extrusion blow molding hollow injection molding and injection molding according to process principles. According to the process principle, there are mainly extrusion blow molding hollow molding, injection blow molding hollow molding, injection stretch blow molding hollow molding (commonly known as injection stretch blow molding), multilayer blow molding hollow molding, and sheet blow molding hollow molding. The corresponding equipment for blow molding of hollow products is usually called a plastic blow molding machine. Blow molding is only suitable for the production of thermoplastic products. The structure of the blow mold is relatively simple, and the materials used are mostly made of carbon.

3.High foaming polystyrene molding mold

High foaming polystyrene molding mold is a mold that uses expandable polystyrene (bead material composed of polystyrene and foaming agent) to form foam packaging materials of various shapes. Its principle is that polystyrene can be steam-formed in the mold, including simple manual operation molds and hydraulic press straight-through foam plastic molds, which are mainly used to produce industrial packaging products. The materials used to make this mold are cast aluminum, stainless steel, bronze, etc.

4. Injection mold

The injection mold is mainly a molding mold widely used in the production of thermoplastic plastic products. The processing equipment corresponding to the injection mold is a plastic injection molding machine. The plastic is first heated and melted in the heating barrel of the injection machine, and then the screw of the injection machine Or when the plunger advances, it enters the mold cavity through the injection system nozzle and mold pouring system, and the plastic is cooled and hardened to form the product. Its structure usually consists of molded parts, casting system, guide parts, pushing mechanism, temperature control system, exhaust system, support parts and other parts. The material used for the production is usually plastic mold steel. The commonly used raw materials are mainly carbon structural steel, carbon tool steel, alloy tool steel, and high-speed steel.