The injection molding machine can produce almost all the plastic products we use every day. The principle is similar to that of the syringe, but in fact, even the professional operators will encounter some faults, which will cause the machine to not operate normally. The empty mold is a common fault if Empty molds appear during the injection process, which can easily cause mold damage. The solution to this failure is as follows.

1. Check the electronic ruler and solenoid valve

Check that the plug of the electronic scale is properly connected, that the screws of the electronic ruler are off, and that the position of the electronic ruler is correct. Check if the machine is still malfunctioning after the electronic ruler is operated correctly, check if the plug of the open solenoid valve is properly connected, and if the solenoid valve is stuck or damaged.

2. Inspection of injection parameters

Check if the gate is clogged. It may be that the mold opening time is too long, the screw wear is serious, and the gate temperature is low, which causes the gate to be blocked. Then, when the parameters are set, increase the injection port temperature and check the injection pressure and injection speed to determine if the parameters are correct.

3. Low-pressure clamping device

In the aspects of setting injection parameters, mold opening and mold lock stroke, mold low pressure protection, etc., there is an ideal shifting process to ensure the safe operation of the mold. First, set the low pressure protection pressure to 0, set the injection molding machine to low pressure manual, repeatedly close the position where the low pressure of the mold needs to be set, and increase the minimum pressure by 1% until the low pressure mold is locked to the high pressure. Low pressure protection pressure required.