Regularly remove the miscellaneous materials. Clean them carefully in the process of producing paper bowls by the paper bowl machine. 2. Pay attention to the correct operation of the paper bowl machine. In order to maintain the good operation of the paper bowl machine, the operating parts need to be well lubricated. 3. When the paper bowl machine is running, the rolling pressure of the knurling mill should not increase suddenly. And the heater should be properly shut down when it is running at high temperature for a long time. 4. The production environment of the paper bowl machine should be kept clean, pollution-free, moisture-proof and fire-proof. 5. When the paper bowl machine is not in use, cover the equipment with a clean plastic film to avoid dust falling and affect the maintenance effect.