Open the feeding machine;
Start the main oil pump, servo pump and cutter;
Turn on the rotary potentiometer knob, pay attention not to turn it to the end at one time, gradually increase the speed, closely observe the current size and change, and the instantaneous current should not exceed 220A;
When the material temperature and mold temperature reach the preset parameters (requirements), discharge and pre-inject, and observe the material flow until it is smooth and uniform in color;pe extrustion blow molding machine.
Set the parameters such as feeding amount, injection speed, pressure holding conversion point, etc. When feeding, carefully check whether there are impurities and sundries in the barrel, and prohibit hard objects and metal objects from entering the barrel;
Generally, the outer layer is opened first to prevent the material from flowing back from the outer layer due to excessive pressure after the inner layer is opened. The feeding flow frequency increases step by step from small to large to prevent the screw from being twisted due to low temperature due to too large opening frequency;extrustion blow molding machine.
On the programmable controller, set the thickness of parison wall at each point according to the process regulations;
After the main machine stranding is started, observe the feeding amount and when the simulation display rod reaches the middle section, open the die mouth, test the material injection once, and then close the die mouth;pet stretch blow moulding machine.
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