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The function of the zipper mechanical 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. Want to know how zipper machinery works? Look now.
The working principle of injection molding of zipper machinery is a cycle process, each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - mold filling and cooling - mold opening Pull pieces. After the plastic part is pulled out, the mold is closed again for the next cycle.
The operation items of zipper machinery include control keyboard operation, electrical control system operation and hydraulic system operation. The selection of injection process action, feeding action, injection pressure, injection speed, ejection type, temperature monitoring of each section of the barrel, adjustment of injection pressure and back pressure, etc. are carried out respectively.
The molding process of the general screw zipper machine is as follows: first, the granular or powdery plastic is added into the barrel, and the plastic is made by the rotation of the screw and the heating of the outer wall of the barrel. molten state.
Then the zipper machine closes the mold and moves the injection seat forward to make the nozzle close to the gate of the mold, and then inject pressure oil into the injection cylinder to advance the screw , so that the molten material is injected into a closed mold with a lower temperature at a high pressure and a faster speed.
The above is about the working principle of zipper machinery, I hope to help you. In addition, the function of the hydraulic transmission system is to provide power for the injection molding machine according to various actions required by the process, and to meet the requirements of pressure, speed, temperature, etc. required by each part of the injection molding machine. 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. If you have other questions, please feel free to contact us, we will serve you wholeheartedly.
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