1. Raw material problem: Too high or too low raw material humidity may affect the smoothness of the rubbing strip. Excessive humidity may lead to an increase in flour viscosity and easy adhesion when rubbing strips; Too low humidity may lead to dry flour and easy to break when rubbing strips.
2. Adjustment of sliver rubbing machine: Improper adjustment of sliver rubbing machine will also affect the smoothness of sliver. For example, the pressure of the kneading roller of the kneading machine is not enough, which will lead to insufficient compaction of the dough and easy unsmooth discharge.
3. Wear problem of the strip rubbing machine: If the strip rubbing drum of the strip rubbing machine is used for a long time or is seriously worn, the surface becomes rough, which will also lead to a decrease in the smoothness of the strip.
If the sliver is not smooth, you can check the humidity of the raw material first and adjust the parameters of the sliver rubbing machine appropriately. If the problem persists, it may be necessary to repair or replace the drum of the sliver rubbing machine.