Symptoms:
The feeding of the screw machine is very slow, the feeding time is more than 2 minutes, while the normal feeding is less than 20 seconds.
Cause Analysis:
The main influencing factors are the unsmooth discharge of the powder tank and the damage of the screw conveyor. The manifestations of poor powder feeding include powder arching, material agglomeration at the outlet of the powder tank, too small opening of the discharge butterfly valve, and insufficient material in the powder tank. The damage of the screw conveyor is mainly due to the deformation of the screw blades, which cannot be transported normally.
Processing process:
1. Turn on the air blowing arch breaking device.
2. Check the opening of the discharge disc valve of the powder tank, and make the disc valve in the fully open position.
3. Check whether the material at the outlet of the powder tank is agglomerated.
4. Check whether the blade of the screw machine is deformed. If it is deformed, remove it for correction or replace it.