Introduction:

Injection molding machine is also known as injection molding machine or injection machine, many factories called beer machine (PIJ descr), injection products called beer. It is the thermoplastic plastic or thermosetting material using plastic molding mold into various shapes of plastic products of the main molding equipment. The injection molding machine can be divided into vertical type, horizontal type and vertical and horizontal type according to the arrangement of injection device and mold locking device.

Working principle:

The working principle of injection molding machine is similar to the syringe used for injection. It is with the help of the screw (or plunger) of the thrust, the plastic has been plasticized good melting state (i.e. viscous flow state) injected into the closed cavity of the mold, and the process of the product is obtained after solidification.

Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding -- melt plasticizing -- pressure injection -- mold filling and cooling -- mold opening and taking parts. After removing the plastic parts, the mold is closed again and the next cycle is carried out.

Operation items of injection molding machine: operation items of injection molding machine include three aspects: control keyboard operation, electrical control system operation and hydraulic system operation. The selection of injection process action, feeding action, injection pressure, injection speed, ejecting type, temperature monitoring of each section of the cylinder, injection pressure and back pressure adjustment, etc.