How does injection mold process plastic products?

2021-09-07 09:40

Since people step into the industrial society, all kinds of equipment manufacturing are solved the manual work, automation equipment manufacturing already get accepted in all fields, the production of injection molding products is not exceptional also, now xiangsu products all use plastic injection mold in injection molding machine according to the injection mold machining, For example, the casing of various household appliances and electronic products commonly used in our daily life are processed according to the injection mold.





So, how does injection mold process plastic products?


1. Heating and pre-melting


Under the drive of the screw braking system, the raw materials from the silo will be transported and compacted in the future. Under the mixing effect of the shear and friction of the external heater, the screw and the barrel, the raw materials will slowly melt, and a certain amount of melted plastic has been gathered at the top of the barrel. Under the working pressure, the screw will slow backward. The backsliding distance is adjusted by measuring the amount required by an injection of the verification equipment. When the set injection amount is realized, the screw stops rotating and backsliding.


2. Clamping and locking


The clamping component pushes the template and the moving part of the mold assembled on the moving template and the back part of the mold on the moving template and locks the mold to ensure that sufficient clamping force can be guaranteed to lock the mold when forming.


3. Move the injection device forward


When the mold is closed, all the injection seats are pushed forward, so that the injector nozzle and the main gate gate of the mold completely meet.


4. Injection and pressure test


After clamping and nozzle completely cater to mould, injection hydraulic cylinder into the high pressure oil, promote the screw cylinder displacement, relativity will accumulate at the top of the cylinder of solution with sufficient pressure mold die is introduced, due to temperature drop and make the plastic volume curl, in order to ensure the tightness and specifications of plastic parts precision and physical properties, It is necessary to maintain a certain working pressure on the solution in the die die to fill the raw material.


5. Pressure relief


When the solution at the mold inlet is frozen clean, the pressure can be relieved.


6. The injection device is backward


After pressure relief, the screw can be rotated and retreated to carry out the whole process of the next feeding and pre-melting.


7. Open the mold and top out the plastic finished product


After the plastic parts in the die die are cooled and formed, the locking module is opened and the thimble pushes out the plastic finished parts.