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The role of the injection system: the injection system is one of the most important components of the injection molding machine, generally plunger type, screw type , Screw pre-plastic plunger injection type 3 main forms. The most widely used is the screw type. Its function is that in a cycle of the injection molding machine, after a certain amount of plastic can be heated and plasticized within a specified time, the molten plastic can be injected into the mold cavity through a screw under a certain pressure and speed.
After injection, keep the shape of the molten material injected into the mold cavity. Composition of the injection system: The injection system consists of a plasticizing device and a power transmission device.
2. The clamping system of the automatic zipper threading machine
The function of the clamping system: the function of the clamping system is to ensure that the mold is closed, opened and ejected. At the same time, after the mold is closed, sufficient clamping force is provided to the mold to resist the cavity pressure generated by the molten plastic entering the mold cavity, so as to prevent the mold from opening and causing the bad status of the product. The composition of the clamping system: the clamping system is mainly composed of a clamping device, a mold adjustment mechanism, an ejection mechanism, an upper and lower fixed template, a moving template, a clamping cylinder and a safety protection mechanism.
3. Hydraulic system of automatic zipper threading machine Requirements for required pressure, speed, temperature, etc. It is mainly composed of various hydraulic components and hydraulic auxiliary components, among which the oil pump and the motor are the power source of the injection molding machine. Various valves control oil pressure and flow to meet the requirements of the injection molding process.
4. The heating and cooling system of the automatic zipper threading machine
The heating system is used to heat the barrel and the injection nozzle. Outside of the barrel and segmented with a thermocouple. Heat conduction through the cylinder wall provides heat source for material plasticization; the cooling system is mainly used to cool the oil temperature. Too high oil temperature will cause various failures, so the oil temperature must be controlled. Another location that needs to be cooled is near the feeding port of the feeding tube to prevent the raw material from melting at the feeding port, causing the raw material to not be fed normally.
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