Key points for injection molding machine operation

Before starting the machine
1. Before operating the injection molding machine, check whether there is water or oil in the electrical control box. If the electrical appliance is damp, do not start the machine. Maintenance personnel should blow the electrical parts dry before starting the machine.
2. Before operating the injection molding machine, check whether the power supply voltage meets the requirements, which should generally not exceed ±6%.
3. Check whether the emergency stop switch and the front and rear safety door switches are normal. Verify whether the rotation direction of the motor and the oil pump are consistent.
4. Check whether each cooling pipeline is unobstructed for a long distance, and pass cooling water into the cooling water jacket at the oil cooler and the end of the barrel.
5. Before operating the injection molding machine, check whether there is lubricating oil in each moving part, and add enough lubricating oil.
6. Turn on the electric heating to heat each section of the barrel. When the temperature of each section reaches the requirement, keep it warm for a period of time to stabilize the machine temperature. The insulation time varies according to the requirements of different equipment and plastic raw materials.
7. Add enough plastic in the hopper. According to the requirements of injection molding of different plastics, some raw materials are best dried first.
8. The heat shield on the barrel should be covered properly to save electricity and extend the life of the electric heating coil and current contactor [1]. As shown in the figure "Operation of Injection Molding Machine".
Operation process
1. Do not cancel the function of the safety door for the sake of convenience.
2. Pay attention to the temperature of the pressure oil and do not let the oil temperature exceed the specified range. The ideal working temperature of the hydraulic oil should be maintained between 45-50℃, and is generally more suitable within the range of 35-60℃.
3. Pay attention to adjusting each travel switch to avoid collision when the machine is in motion.
End of work
1. After the injection molding machine is operated, the plastic in the barrel should be cleaned to prevent the residual material from oxidation or long-term heat decomposition.
2. The mold should be opened to keep the toggle mechanism in a locked state.
3. The workshop must be equipped with lifting equipment. Be very careful when installing and disassembling the mold to ensure production safety.