How to easily deal with common faults of injection molding machine
When the injection molding machine is used unreasonably for a long time, it will produce large and small faults. In the face of such faults, we should find the source of the problem and find the method to solve the problem through the source of the problem, which can effectively reduce the troublesome phenomenon in the process of solving the problem. Secondly, don’t be afraid when you encounter the failure of the injection molding machine. Next, we will introduce the methods to solve the faults of the injection molding machine in detail.
I. No glue injection
1. The coil made of glue spraying solenoid may have been burned, or foreign objects may enter the directional valve, clamp the valve core and move, clean or replace the glue spraying valve.
2. If the pressure is too low, increase the glue injection pressure.
3. If the temperature of the injection molding machine is too low, adjust the thermometer to raise the temperature to the required point. If the temperature cannot be raised by adjusting the thermometer, check whether the electric heating cylinder and fuse are burned out or broken. If they are broken, replace them in time.
4. If the wiring of glue injection combined valve opening system is loose or in poor contact, connect the wire head of the combined switch properly.
II. Sol screw rotation, but the rubber does not enter the cylinder
- Sol back pressure is too high, back pressure valve damage or improper adjustment, adjust or replace the sol back pressure valve.
2. Insufficient water transport, so that the temperature is too high, so that the rubber particles into the screw blocked, adjust the water transport, take out the bonded rubber block. See if the water ring is blocked or not cooled.
3. No material in the hopper, feeding.
4. Whether the temperature of the melt cylinder is too high.
III. Injection molding machine mold sound
1. Open the die stroke switch system is not stuck or stuck system failure, adjust or replace the solenoid valve.
2. Loosen the fixed screw of the slow solenoid valve, or the spool is stuck, and the whole is obviously slow.
IV. Pressure oil temperature too high
1. If the oil pump pressure is too high, it shall be adjusted to the demand pressure of rubber.
2. If the oil pump is damaged and the pressure oil concentration is too low, check the oil pump and oil quality.
3. If the pressure oil is insufficient, increase the pressure oil.
4. The cooling system of the injection molding machine is defective, resulting in insufficient water. Repair the cooling system.
V. Full automatic action failure
1. The failure of the electric eye of the injection molding machine is caused by loose fixing screws or poor focusing, which makes the electric eye resume its function.
2. If the time system fails or is damaged, adjust or replace the time system.
3. The heating cylinder of the injection molding machine is damaged and replaced.
4. Thermocouple wiring is poor or damaged, fasten or replace.
The common problems of injection molding machine are basically explained here. If you have good suggestions or opinions, you can communicate with us in time. We will have professional technicians to help you solve the problems. Thank you for your attention and support.
