The function of injection system: The injection system is one of the most important components of injection molding machines, generally in three main forms: plunger type, screw type, and screw pre molded plunger injection type. The most widely used is the screw type. Its function is to heat and plasticize a certain amount of plastic within a specified time in a cycle of the injection molding machine, and inject the molten plastic into the mold cavity through a screw under a certain pressure and speed. After the injection is completed, maintain the shape of the molten material injected into the mold cavity. Composition of injection system: The injection system consists of a plasticizing device and a power transmission device.

The plasticizing device of a screw injection molding machine mainly consists of a feeding device, a material barrel, a screw, and a nozzle. The power transmission device includes an injection cylinder, an injection seat moving cylinder, and a screw driving device (glue motor).