The key parts of a vertical injection molding machine mainly include the following categories:
Mold Clamping System Components
• Clamping Cylinder: Provides power for mold closing and opening, ensuring reliable mold closing and opening.
• Platen: Includes the fixed platen and movable platen, used to mount the mold and withstand the pressure during injection.
• Guide Mechanism: Such as guide pins and guide bushings, ensures the smooth and precise movement of the movable platen.
Injection System Components
• Barrel and Screw: These are the core components for plasticizing the raw material. The rotation of the screw heats, melts, and pushes the raw material into the mold.
• Nozzle: Connects the barrel and mold, controlling the injection direction and flow rate of the molten material.
• Heating Coil: Installed on the outside of the barrel, provides heat for plasticizing the raw material.
Hydraulic System Components
• Hydraulic Pump: Provides power for the entire hydraulic system and outputs pressurized oil.
• Hydraulic Valves: Includes pressure valves, flow valves, directional valves, etc., controlling the pressure, flow rate, and direction of the hydraulic oil.
• Oil tank: Stores hydraulic oil and also dissipates heat and filters impurities.
Electrical control system components
• Controller: Such as a PLC (Programmable Logic Controller), it is the control core of the entire machine, coordinating the operation of various components.
• Sensors: These include temperature sensors and pressure sensors, which monitor the equipment's operating status in real time and provide feedback to the controller.
• Motor: Provides power for screw rotation and mold clamping cylinder operation.
Other auxiliary components
• Mold mounting device: Used to secure the mold and ensure accurate positioning during the injection molding process.
• Safety devices: Such as safety door switches and overload protection devices, which ensure the safety of operators and equipment.






