The working principle of the plastic forming machine is similar to that of the injector for injection. It relies on the thrust of the screw (or plunger) to inject the plasticized melted plastic (i.e. viscous flow) into the closed die cavity, and then solidifies and finalizes the process of the product. Injection molding is a cyclic process, each cycle includes: quantitative feeding - melting plasticization - pressing injection - filling cooling - opening parts. After removing the plastic parts, the mould is closed again for the next cycle. Chinese style

1) Locking die: the die wrench is fast approaching the fixed die wrench (including slow-fast-slow), and confesses that no foreign body can be stored, the system is turned to high pressure, and the model is locked (insisting on the pressure in the cylinder). A kind of

2) The shooting platform moves forward: the shooting platform moves forward to the designated position (the nozzle is close to the die). A kind of

3) Plastic injection: The screw can be set to inject the solute at the front of the barrel into the cavity with multi-stage speed, pressure and stroke. A kind of

4) Cooling and Pressure Maintenance: According to the setting of various pressures and time intervals, adhere to the barrel pressure, together with the cavity cooling forming. A kind of

5) Cooling and pre-moulding: the products in the mould cavity continue to cool, and the plastic particles are pushed forward by the hydraulic motor driving the screw rotation. The screw is withdrawn under the control of the set back pressure. When the screw withdraws to the predetermined position, the screw rotates intermittently, the injection cylinder is loosened according to the set, and is expected to end. A kind of

6) Evacuation of the shooting platform: After the pre-moulding, the shooting platform evacuates to the designated position. _

7) Opening: The pull is withdrawn to its original position (including slow-fast-slow). _

8) ejection: ejector pin ejection products. The basic requirements of injection moulding are plasticization, injection and moulding. Plasticization is the condition to finish and ensure the quality of the moulded products. In order to satisfy the requirements of moulding, it is necessary to ensure satisfactory pressure and speed for injection. Together, because the injection pressure is very high, correspondingly high pressure occurs in the die cavity (the uniform pressure in the die cavity is generally between 20 and 45 MPa), so there is a need for satisfactory clamping force. Thus, injection equipment and clamping equipment are the key parts of injection moulding machine.