The Main Part Of Plastic Injection Film

The main part of plastic injection into film. The plastic is heated and plasticized into a fluid state and injected into the mold under pressure. The injection methods are plunger, pre-plasticized and reciprocating screw. The latter (Figure 1) has the advantages of uniform plasticization, small injection pressure loss, compact structure, etc., and is widely used.

Clamping device

It is used to close the fixed mold and the movable mold of the mold, and realize the mold opening and closing action and eject the finished product.

Injection mold

Referred to as injection molding (Figure 2). It is composed of gating system, molded parts and structural parts. ①Gating system refers to the plastic flow channel from the nozzle of the injection machine to the cavity; ②Molding parts refer to the parts that constitute the mold cavity, which is composed of female molds and male films; ③Structural parts, including guiding, stripping, core pulling, Parting and other parts. The mold is divided into two parts: the fixed mold and the movable mold, which are respectively fixed on the fixed plate and the movable plate of the mold clamping device, and the movable mold completes the opening and closing actions with the movement of the movable plate. The mold can be heated or cooled as required.