Since the Spring Festival, with the development of a new coronavirus-infected pneumonia epidemic, masks have become a key concern of the people throughout China. It has entered a stage of wearing masks for all people, and the state is actively supporting the resumption and production of mask companies.
“Although we can’t be on the front line like medical staff, we can fully support the rear supply to ensure the supply of materials.” Based on the application of PI130 series inverters in mask machines and other fields, POWTRAN is the key automation equipment for the production of protective materials provides mature solutions, and actively contributes to the fight against the epidemic.
1.Mask machine introduction
The mask machine is to make various masks with certain filtering performance through processes such as hot pressing, folding molding, ultrasonic welding, scrap removal, welding of ear bands and nose bridge strips, etc. The mask equipment is not a single machine, it requires The cooperation of multiple machines completes various processes. Our common non-woven flat (common medical mask) mask machine has a production efficiency of about 120-150PCS / MIN.
2.Mask production process
Production process of disposable medical masks:
(1). Selection of raw materials: Choose appropriate amount of PP non-woven fabric, nose bridge strip, silk thread, antibacterial filter paper, activated carbon cloth, waterproof breathable membrane, non-woven edging material and ear band.
(2). Production of tablets: Hang PP non-woven fabric raw materials, anti-bacterial filter paper, activated carbon cloth and waterproof breathable membrane on the mask sheeter's material rack, and debug the machine to produce automatically.
(3). Welding synthetic type: Place the nose bridge strip over the mask sheet, and then fold the mask sheet and wrap the nose bridge strip.
(4). Inner workshop: sterilize the masks and vacuum seal them.
(5). Outsourced shipment: centrally integrate packaged masks into external packaging shipments.
3.Full automatic mask production line + inverter application program
(1). Inverter stepless speed regulation, one-time welding and forming, anti-wear, and power increaser in the chassis;
(2). Fully-automatic integrated production, which only needs 1-2 people to operate. The frequency conversion speed regulation method uses a keyboard potentiometer;
(3). High-speed production with a production capacity of 80-100PCS / MIN and more than 100,000-140,000 masks per day;
(4). The qualified rate of production through frequency conversion speed regulation equipment is as high as 99%.
4.Application in Guangdong province
Our customers in Guangdong chose the PI130 series inverter on the spot, which is applied to the transmission shaft of the production line. The motor power is 0.75kW and the three-phase 220V voltage level. During the debugging process, the inverter runs stably, and the low-frequency output torque is large. The customer is very satisfied, and a batch order notification is immediately issued.
When this batch of orders was placed, during the severe epidemic situation and lack of supplies, in order to meet the customer's needs as soon as possible, the company actively deployed the resources of all parties and urgently mobilized the product to cooperate with the support. After multiple efforts, the delivery was successfully completed.
5.Features of POWTRAN product
Efficient
EU CE certified products. It meets the high-precision and wide-range speed regulation and torque control of the motor, and provides a comprehensive solution for the high-end control field.
Precise
Applying advanced current vector PWM control technology, using high-performance power modules and advanced inverter manufacturing technology, to achieve universal variable-frequency control and complex high-performance servo applications.
Energy saving
Widely used in equipment manufacturing, electronics, machinery, petrochemical, metallurgy, mining, papermaking, textile, building materials (cement, glass), transportation and other industrial fields and high-tech fields, as well as civil air conditioning, high-rise water supply, square music fountains and other civil projects Energy saving and automation control.
Features of PI130series inverter：
◆Adopt DSP core processor high-performance vector control, power device adopts Mitsubishi IPM integrated module and Infineon PIM integrated module
◆7 digital inputs or pulse inputs, 2 digital outputs (SPA and 1 relay), 1 analog input, 1 analog output, standard RS485 communication terminal to realize communication between upper computer and network
◆42 signals can be selected
◆8 frequency setting methods, including DC0 ~ 10V, DC0 ~ 20mA range can be adjusted
◆With over-voltage protection, under-voltage protection, over-current protection, overload protection, over-heat protection, over-current stall protection, over-voltage stall protection, external fault, communication error, PID feedback signal abnormal protection
