Injection molding machine is usually by the injection system conveys, clamping system, hydraulic system, electrical control system, lubricating system, heating and cooling system, safety monitoring system, etc.

Structure function
The composition of the injection system: injection system is composed of plasticizing device and power transmission device.
Screw injection molding machine plasticizing device is mainly composed of feeding device, material barrel, screw, shoot tip parts.Power transmission device including cylinder injection, injection of mobile oil cylinder and the screw drive (melt motor).

(1) the effect of injection system:
Injection system is the most important part of injection molding machine, usually have a plunger type, screw, screw plastic injection plunger type three kind of main form.Is currently the most widely used screw type.Its action is, in a loop of the plastic injection machine, can within the prescribed period of time after a certain number of plastic heating plasticizing, under certain pressure and velocity, through the screw in the molten plastic injection mold cavity.

(2) the clamping system 　
The effect of clamping system: the role of the clamping system is closed, open and ejection products moulds.At the same time, the closed in the mold for give mould clamping force, to resist the molten plastic into the cavity, the cavity pressure produced by the prevent slotted mould, products of the bad situation.Composition of clamping system: the clamping system is mainly composed of clamping device, the variable organization, ejection mechanism, before and after the fixed template, mobile template, clamping cylinder and security agencies.

(3) the hydraulic system 　
The role of the hydraulic drive system is to implement all the requirements of injection molding machine according to process action, and meet the injection molding machine parts required for the requirement of pressure, velocity, temperature, etc.It is mainly composed of each kind of hydraulic components and hydraulic auxiliary components, which is a dynamic source of injection molding machine oil pump and motor.All kinds of valve control oil pressure and flow, thus satisfying the requirements injection molding process.

(4) electrical control system
With reasonable hydraulic system, electric control system can realize the technological process of the injection machine requirements (pressure, temperature, speed, time) and a variety of programs.Is mainly composed of electrical appliances, electronic components, instrumentation, heater, sensor, etc.Generally there are four kinds of control mode, manual, semi-automatic and fully automatic, adjustment.

(5) the heating/cooling system 　
Heating system is used for heating cylinder and injection nozzle, injection molding machine cylinder generally USES electric heating circle as a heating equipment, installation, the outside of the cylinder and thermocouple segment detection.Thermal conductive material plasticizing provide heat source for a heat through the wall;The cooling system is mainly used for cooling oil temperature, oil temperature is too high can cause a variety of failure occurs so that the oil temperature must be controlled.Another need cooling position near the feed opening feed tube, prevent raw material in the mouth melting, lead to the raw material can not be normal.

(6) lubrication system 　
Lubrication system is a dynamic template for injection molding machine, mould device, connecting rod, the place such as machine hinge parts provide lubrication conditions, where there is relative motion of circuits, in order to reduce energy consumption and improve life parts, lubrication can be regular manual lubrication, can also be automatically electric lubrication

classification
An AC/DC injection molding machine, vertical series:
The aircraft mainly for cable, all kinds of electronics, computer cable and power plug lines, such as injection molding, injection molding products accurate standard is not high, generally dominated by PVC, PE and other plastic injection molding, suitable for the concrete suitable model of the product specifications generally clamping force ranging from 15 t - to 35 t, because of each manufacturer of molar volume, specific configuration are different, before the choose and buy must require manufacturers to the factory to determine the specific parameters of the model specifications, etc

Second, the C type injection molding machine series:
The machine vertical clamping, horizontal beam glue because there was no guide pin, for clamping parts into an English letter "C" word.This machine structure is complex, with super glue, because there was no guide post work area is broad, mainly is suitable for engaged in all kinds of safety power plug injection molding, such as France, American plug, the plug

Three, vertical single board type injection molding machine, double slide type injection molding machine series:
This machine mainly in view of the engineering plastics, the precision of the products have strict requirements, precision or have small insert molding together, it is also one of insert the optimization of injection molding solution.Because the machine has a fixed upper die, die sliding out function.On the double slide type has a mode under the dual mode, two alternating mold, compared with is suitable for precision hardware embedded in or out.Part of the double color mould also can use double slide injection molding, general molding products, such as electronic connector, mobile phone connector, IC components, etc., double slide faults: two work, increase the Labour cost.

Four, vertical disc type injection molding machine, rotary series:
Vertical rotary disc type injection molding machine series is precision embedded injection and double color mould optimization scheme, because the machine can design more than one upper die two lower die or mould function, compared with suitable for complex embedded and the advantage of labor savings

Five, the vertical injection molding machine:
Vertical injection molding machine for plastic volume larger and must use the hardware plastic bags with vertical structure clamping products, put insert is convenient for vertical structure, horizontal structure of large amount of glue, is the product of combining market needs to stand lie structure.

Operating procedures
1, the preparation work
1.1, check the machine parts and electric control box are in good condition.
1.2, check the oil level of hydraulic oil, oil storage is enough, start the motor observation axial plunger valve oil is normal.
1.3, open the water valve on cooling water.

2, operation
2.1, loading mode: push the move mould institutions to highest, plastic mold in a mobile template, unscrew the fixed template, correction and plastic mould on the mould and fixed template. Tighten screw, tighten under the plastic mold die on mobile template, run move mould, check the mold position is correct.
2.2, cylinder heating: on of the electric switch electrical control box, add plastic inside the cylinder, sufficient heat melt plastics.
2.3, injection operation: through the electromagnetic valve of 8 make move mould institutions rise and plastic mold closing, through to the electromagnetic valve 6 to injection molding press plunger into the cylinder.After the injection through the electromagnetic valve 6 injection plunger withdrew from the cylinder pressure, through the electromagnetic valve of 8 institutions declines, the moving mould, plastic mould can be open mold release.

3, maintenance and maintenance
3.1, check the storage condition of the hydraulic oil is enough, when should be added in time, often should clean oil.
3.2 regular lubrication, lubrication points according to the regulation, regular cleaning filter.Keep the machine around clean, must not make dirt into the tank.
After 3.3, the use of the machine should be on the dirt rub-up, smooth surfaces should be greased.
3.4 and electrical parts, regular check, remove dirt, oil, dust, keep the electrical contact clean, often clear the dirt and dust on the joint.