Do not start the plastic processing equipment rashly to avoid hidden dangers
When the plastic processing equipment needs to be started, do not start it rashly. It is suitable to start it only after corresponding inspection, because some users start the plastic processing equipment to process plastic products without inspection, which leads to accidents, because the operation of the equipment is still dangerous, So I hope you can start the plastic processing equipment according to the correct steps.
Correct steps to start the plastic processing equipment:
1. Turn on the electric heating to heat each section of the barrel. When the temperature of each section meets the requirements, it shall be kept warm for a period of time to stabilize the temperature of plastic processing equipment. The holding time varies according to the requirements of different equipment and plastic raw materials.
2. Check whether there is water and oil in the electrical control box. Do not start the electrical appliance if it is damp. The maintenance personnel shall blow dry the electrical parts before starting the machine.
3. Check whether the plastic processing equipment of emergency stop switch and the switches of front and rear safety doors are normal. Verify whether the rotation direction of motor and oil pump is consistent.
4. Add enough plastic into the hopper. According to the requirements of different plastics for injection molding, some raw materials are better and dried first.
5. Before the operation of plastic processing equipment, check whether the power supply voltage meets the requirements, which generally shall not exceed±60%.
6. Cover the heat shield on the cylinder, which can save electric energy and prolong the service life of electric heating ring and current contactor.
7. Before the operation of plastic processing equipment, check whether there is lubricating oil at all moving parts and add enough lubricating oil.
8. Before the operation of plastic processing equipment, check whether there is water and oil in the electrical control box. If the electrical equipment is damp, do not start it. Maintenance personnel shall blow dry the electrical parts before starting the machine.
9. Check whether all cooling pipes are unblocked, and feed cooling water into the oil cooler and the cooling water jacket at the end of the barrel.
According to the temperature range provided by the raw material supplier, adjust the barrel temperature to the middle of the range and adjust the mold temperature. Estimate the required glue injection volume, and adjust the plastic processing equipment to two-thirds of the estimated larger glue injection volume. Adjust the reverse cable (glue pumping) stroke. Estimate and adjust the secondary injection time and adjust the secondary injection pressure to zero.
The above correct steps for the startup of plastic processing equipment are introduced here. I hope you can get some substantive reference value from our article. If you have other questions, you are welcome to consult us at any time, and we will answer them one by one.
