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The basic structure of the injection molding machine


Electric control of the injection molding machine
The reasonable cooperation between the electrical control system and the hydraulic system can realize the process requirements (pressure, temperature, speed, time) and various program actions of the injection machine. It is mainly composed of electrical appliances, electronic components, instrument display, heater, sensor, etc. There are generally four control modes, manual, semi-automatic, full-automatic and adjustment.

Heating / cooling of the injection molding machine
The heating system is used to heat the barrel and injection nozzle. The barrel of the injection molding machine generally adopts the electric heating ring as the heating device, which is installed outside the barrel and detected by thermocouples in sections. Heat is conducted through the cylinder wall to provide heat source for material plasticization; The cooling system is mainly used to cool the oil temperature. Too high oil temperature will cause a variety of faults, so the oil temperature must be controlled. The other place to be cooled is near the blanking port of the feed pipe to prevent the raw material from melting at the blanking port, resulting in the failure of normal blanking of the raw material.

lubrication system of the injection molding machine
The lubrication system is a circuit that provides lubrication conditions for the moving formwork, mold adjusting device, connecting rod hinge, shooting table and other parts of the injection molding machine, so as to reduce energy consumption and improve the service life of parts. The lubrication can be regular manual lubrication or automatic electric lubrication.

Safety monitoring of the injection molding machine
The safety device of injection molding machine is mainly used to protect human and machine safety. It is mainly composed of safety door, safety baffle, hydraulic valve, limit switch and photoelectric detection elements to realize electrical mechanical hydraulic interlocking protection.
The monitoring system mainly monitors the oil temperature, material temperature, system overload and process and equipment faults of the injection molding machine, and indicates or alarms in case of abnormalities.
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