1. Circuit malfunction
A circuit malfunction is a situation where the screw of the injection molding machine does not rotate. It may be caused by damage or poor contact of protective switches, limit switches, plugs and other components in the injection molding machine circuit. At this point, you can first check whether the protection switch, limit switch, etc. are in good condition. If there are no problems, then check whether the circuit plug of the injection molding machine is loose or detached. If there is a problem, it can be solved by replacing or connecting the plug in a timely manner.
2. Hydraulic system issues
A malfunction in the hydraulic system may also cause the screw of the injection molding machine to not rotate. This problem may be caused by insufficient hydraulic oil, dirty hydraulic oil, oil pump failure, insufficient pressure, and other reasons. At this point, you can first check if the hydraulic oil level is sufficient, and if it is insufficient, add hydraulic oil in a timely manner; Check if the hydraulic oil is dirty, and replace it promptly if it is dirty; Check if the oil pump is working properly. If it is not working properly, it needs to be replaced or repaired; Check if the hydraulic system pressure is normal. If it is insufficient, adjust the pressure or replace the hydraulic valve and other components.
3. Mechanical failure
The failure of the injection molding machine screw to rotate may also be caused by a mechanical malfunction. For example, screw overheating, screw jamming, coupling detachment, rope detachment, etc. At this point, you can first check if the screw temperature is too high. If it is too high, you need to reduce the load on the injection molding machine or strengthen cooling to cool it down; Check if the screw is stuck. If it is, remove impurities or replace the screw; Check if the coupling and rope have fallen off, and if they do, install them in a timely manner.
In summary, the problem of the screw not rotating in the injection molding machine may be caused by various factors and requires multiple inspections and repairs. Maintaining the normal operation of the injection molding machine is crucial, as it can not only improve production efficiency but also extend the service life of the equipment.
