The solution to control the medical mask production machine using PLC/HMI and DA180 Servo of INVT helps to optimize control, improve the speed, productivity and efficiency of the machine, and stabilize the output product quality for the customer.

The medical mask production machine is complicatedly composed of many different parts such as and divided into 3 main parts: billet forming machine, billet flipping table, strap press.

• Billet forming machine: is responsible for creating the body of the mask from the filter cloth rolls and the nose clip coil. Machine productivity is close to 300 pieces/minute (actual speed depends on mechanical system). The performance of the machine depends on 2 factors: machine speed and ultrasonic welding technology.
• Billet flipping table: is responsible for turning the workpiece upside down, pushing the billet into the conveyor and feeding the billet to the strap press. The system normally has 1 or 2 billet flipping tables depending on the number of strap presses.
• The strap press is responsible for pressing 02 straps to the billet, the finished billet will be taken to the end of the conveyor and finished product shall be packaged.

Previously, most of the medical mask making machines were imported from China. After the outbreak of the Covid-19 epidemic, a number of domestic machine manufacturers have started researching to produce mask making machines to meet the domestic market, but the implementation is still difficult due to lack of understanding the complete technology, there is no optimal control solution, the machine speed is low and unstable.