Introduction
There are many reasons for china injection moulding machine injection end position deviation problems, the common ones include:
1. Too fast or too slow injection speed;
2. Insufficient injection pressure
3. Unreasonable mould structure
4. Poor lubrication, excessive friction, and so on.
The main steps and methods for adjusting the plastic moulding machine for end-of-shot position deviation include checking and adjusting the injection dipstick, calibrating the dipstick zero position, and optimizing the hold pressure setting. These steps are designed to ensure that the China injection moulding machine will accurately reach the set end position when injecting plastic, thereby improving product quality and productivity.
Checking and Adjusting the Injection Scale
1. Checking the Injection Scale: Firstly, the injection scale needs to be checked for accuracy. You can determine if there is a problem with the e-scope by observing whether the material storage position has moved. If there is a problem with the e-scales, they may need to be replaced or adjusted.
2. Adjusting the injection e-scales: If a problem is found with the e-scales, it can be resolved by adjusting the injection e-scales. This may involve calibrating the e-scales or replacing them with new ones.
To calibrate the zero position of the e-scales
1. Turn on the injection moulding machine’s computer: first of all, you need to turn on the plastic moulding machine’s computer interface and enter the electronic scale setting screen.
2. Set the zero position of the electronic scale: In the column related to the movable mould scale, set the ‘Function’ to ‘Use’, and set the length on the nameplate of the electronic scale at the position of ‘Total length’. Then, operate the china injection moulding machine so that the moving mould mechanism is completely and naturally straightened, take the zero point of the moving mould ruler in the setting screen of the electronic ruler, press the input key to make the ‘OFF’ change to ‘ON’, and then the measured value will be displayed as ‘0’. The measured value will be displayed as ‘0’, and the ‘0’ position of the new electronic scale will be set.
Optimize the holding pressure setting
1. Check the holding pressure setting: If the injection is stopped after a certain position without holding pressure, you can observe whether the end position of the injection glue deviates too much. If this does not happen, then the instability may be caused by the holding pressure.
2. Adjust the holding pressure setting: don’t change the holding pressure and time, and look at the data after producing a few more moulds. Generally speaking, as long as the process parameters are reasonable, the injection end position is still relatively stable.
You can effectively adjust the position deviation of the injection molding machine’s end point through the above steps, improving product quality and production efficiency. At the same time, regular inspection and maintenance of the china injection moulding machine, as well as according to the production demand to adjust the holding pressure setting, can effectively prevent similar problems.
Reasons and suggestions for unstable China injection moulding machine shot volume
1. Unstable melt temperature:
Plastic moulding machine injection instability may be related to the melt temperature. Melt temperature is one of the important parameters affecting injection production. If the temperature is unstable, it will lead to unstable melt properties and fluidity, thus affecting the stability of injection volume. It is recommended to install a melt temperature control system, which can be realized by PID control, to ensure that the melt temperature fluctuates within a certain range, to improve the stability of injection volume.
2. Problems of injection nozzle and injection rod:
The injection nozzle and injection rod are the key components that determine the injection volume. If the shot nozzle or rod is excessively worn or damaged, the shot volume will become unstable or even impossible. It is recommended that these parts be inspected and replaced regularly. At the same time, inspect the nozzle or the rod for damage, deformation, or leakage to ensure proper operation.
3. Problems with moulds and fittings:
Moulds and fittings may also cause the problem of unstable injection volume. Inadequate mould design or manufacturing precision, poor lubrication, loose fittings, etc. will affect the stability of injection volume. Recommended to use high-quality moulds and fittings. Carry out regular maintenance and repair, and check and clean the mould cavities and cooling waterways to ensure normal use.
4. Hydraulic system problems:
The hydraulic system of the china injection moulding machine may also affect the injection volume stability. In the hydraulic system, if the oil temperature or quality is unstable, or the oil pipeline is clogged, it will lead to fluctuation of system pressure and affect the stability of injection volume. It is recommended to check and replace the hydraulic oil regularly. And clean the oil pipeline to ensure the hydraulic system operates normally.
5. Circuit system problems:
The circuit system of the plastic moulding machine is also an important factor affecting the stability of injection. Such as poor circuit contact, aging or explosion of the wiring, controller failure, etc. will lead to unstable injection volume. To avoid circuit system problems, it is recommended to check the circuits and controllers regularly and replace the faulty parts in time.
