why the automatic granule packing machine can't make bags of the same length?

1. If the bag is getting shorter and shorter, the pressure of the film forming belt is not good for the forming tube. The laminating handwheel can increase the pressure of the forming tube.

2. If the bag is getting longer and longer, the pressure of the film forming belt on the forming tube is too large, and the pressure of the forming tube can be adjusted by the laminating handwheel.

3. If the bag is long or short, it may be:

The film timing belt does not exert pressure on the forming tube;

The film timing belt is soiled or soiled by other things. It can be cleaned with alcohol or sanded. If the tape is too worn, replace it with a new timing belt.