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The function of the injection system: the injection system is one of the most important components of the injection molding machine. Generally, there are plunger type, screw type and screw type. There are 3 main forms of pre-molded plunger injection. 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. Clamping system of automatic zipper machine
The function of clamping system: The function of 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. The hydraulic system of the automatic zipper machine
The function of the hydraulic transmission system is to realize the power supply of the injection molding machine according to various actions required by the process, and to meet the needs of each part of the injection molding machine Requirements for 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. Heating and cooling system of automatic zipper machine
The heating system is used to heat the barrel and injection nozzle. outside of the cylinder 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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