1. Abnormal noise
1. If it occurs in the reducer, it may be caused by bearing damage or poor lubrication, or it may be caused by gear wear, improper installation and adjustment, or poor meshing. It can be solved by replacing bearings, improving lubrication, replacing gears or adjusting gear meshing conditions.
2. If the noise is a sharp scratching sound, the position of the barrel should be considered skewed, causing the possibility of scraping the shaft head and the drive bushing. It can be solved by adjusting the barrel.
3. If the barrel makes noise, it may be that the screw is bent to sweep the cavity or the set temperature is too low, causing excessive friction of solid particles. It can be dealt with by straightening the screw or increasing the set temperature.
2. Abnormal vibration
If this happens at the reducer, it is caused by the wear of the bearing and the gear, which can be solved by replacing the bearing or gear; if it happens at the barrel, it is due to the hard foreign matter mixed in the material, and the cleanliness of the material needs to be checked. If necessary, a strong magnetic device is installed in the hopper to absorb iron filings.
3. Ring blockage at the screw inlet
This kind of failure is mainly caused by the interruption of cooling water or insufficient flow. It is necessary to check the cooling system and adjust the cooling water flow and pressure to the specified requirements. It is also possible that the large recycled material block in the raw material blocks the feed inlet, and the feed inlet needs to be cleaned.