Application of Delta motion controller on KN95 mask machine

Due to the impact of the epidemic, mask machines became the hottest industry in the first half of the year. Related raw materials, equipment, and manpower are all rising. In order to start production one day earlier, many companies are even willing to hire experienced debuggers with super high salaries.

But for engineers, it is bittersweet. Not to mention the rush to the deadline, the debugging process is by no means as simple as imagined.

The production process of the mask machine seems to be simple and transparent, and the technology is not difficult, but to achieve stable operation, it requires careful adjustment by experienced engineers. This is fully illustrated by the following complaint in the group.

I believe that many KN95 debugging engineers can understand the above anger. At the commissioning site, not only have to bear the pressure of delivery time, face endless equipment quality problems, but also often have to make up for potential deficiencies in process design.

As mentioned above, the ultrasonic cannot work continuously, it is obviously a pot of component quality. However, the deviation of the material rack, the derailment of the half-folding mechanism, and the rotary welding ear strap mechanism are obviously due to the excessive idealization of the process design and problems in the implementation.

The most prone to failure of the conventional fully automatic KN95 mask machine is the position of the nose bridge, which is difficult to accurately transmit. In the absence of inspection points, deviations or batch failures are likely to occur. Calibration recovery is somewhat difficult, and the accumulation of errors in long-term operation will increase.

The other is the earband welding station, which is also the most problematic station in the fully automatic KN95 equipment. The traditional structure is relatively complicated, which is likely to cause defective products, and to a certain extent restricts the efficiency of the equipment. When abnormal, it will recover. Certainly difficult.

If these problems are completely resolved by on-site debugging, it will not only create tremendous pressure on engineers, but also become an untimely bomb for companies to deliver on time and fulfill their contracts!

Since the process is not perfect, why not solve it from the design source?

To this end, Delta and its partner “Zhejiang Shuohe Robotics Technology Co., Ltd.” jointly developed a new KN95 process. Let’s take a look!

The highlight of this new process is the introduction of Delta SCARA robots. With its support, the previously prone to failure of the nose bridge transmission and ear strap welding process has become a simple fixed-point processing, which completely eliminates the failure points of the

conventional scheme. Make the equipment more stable, more efficient and smaller. And because the Delta SCARA robot supports manual adjustment, even the initial positioning can be directly pulled into place by hand, and the position data can be saved. Make adjustment extremely simple.

The SCARA robot is equipped with Delta AX8 motion controller and 3 ASDA A2 series servo systems. Under the connection of the EtherCAT high-speed bus, it is responsible for the feeding control of the nose and ear wires. The AS200 series PLC manages the orderly operation of the entire production line. The overall plan is more concise and reasonable.

The KN95 mask machine using Delta’s new technology can achieve a production capacity of 30-45 pieces per minute. The AX8 controller also has a chase cutting function, which reserves space for companies to further enhance their products.