How does injection molding machine work?
Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - mold filling and cooling - mold opening and taking out. After the plastic parts are taken out, the mold is closed again for the next cycle.
The operation items of injection molding machine 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.
The working principle of the injection molding machine: similar to the syringe used for injection, it injects the plasticized plastic in the molten state (that is, the viscous state) into the closed mold cavity by means of the thrust of the screw (or plunger). The process of obtaining products after curing and shaping.
What is the process flow of the injection molding machine?
The general molding process of the screw injection molding machine is as follows: firstly, the granular or powdery plastic is added into the barrel, and the plastic is melted by the rotation of the screw and the heating of the outer wall of the barrel, and then the machine is clamped and the injection seat is moved forward. Then, the pressure oil is passed to the injection cylinder to advance the screw, so that the melt is injected into the closed mold with a low temperature at a high pressure and a fast speed, and the pressure is maintained for a certain period of time (also known as pressure holding), cooling to make it solidify and form, and then the mold can be opened to take out the product.
The basic requirements of injection molding are plasticizing, injection and molding. Plasticization is the premise to realize and ensure the quality of molded products, and in order to meet the requirements of molding, injection must ensure sufficient pressure and speed. At the same time, due to the high injection pressure, a correspondingly high pressure is generated in the mold cavity, so there must be a sufficient clamping force. It can be seen that the injection device and the clamping device are the key components of the injection molding machine.
How to operate our Sonly products correctly?
1.When the safety door of the injection molding machine is closed, the relevant personnel cannot open it without authorization. If you want to open the safety door, you must wait for the closing mode action to stop;
2.When using the injection molding machine, the relevant personnel need to ensure that all pressure gauges and ammeters are not damaged, and problems should be solved in time;
3.It is not advisable to use unclean hydraulic oil, so as not to block the pipeline and reduce the service life of the hydraulic valve;
4. When changing to another raw material, clean up the waste left in the hopper so as not to affect the quality of the plastic parts.
In conclusion
Since its establishment, Sonly has been committed to the production and research and development of injection molding machines. At the same time, we also provide customers with a large number of sophisticated equipment, which are well received in the market.
If you want to buy an injection molding machine, we are sure that we will be your best choice. If you have any questions about it, please feel free to contact us.