SOWAKAM
Application of frequency converter in industrial washing machine
  Introduction: With the emphasis on energy saving and emission reduction in the industrial washing machine industry and the control of equipment production costs, a new generation of fully automatic washing machines with variable frequency speed regulation as the mainstream have been developed one after another. VFD Inverters are widely used in the field of washing machines due to their high stability, high reliability and excellent response time.
  The characteristics of industrial washing machines; fully automatic industrial washing machines refer to large-capacity washing machines that have the functions of initial washing, washing, rinsing, bleaching and dehydration, and can automatically switch between functions without manual operation. The washing machine can be divided into three types according to different methods of shock absorption and shock absorption: suspension shock absorber type, water injection balanced shock absorber type, and gravity fixed type. At present, the mainstream products on the market are suspension type shock-absorbing washing machines. It is mainly composed of nine parts, including the outer shell frame, the inner roller of the spindle, the transmission system, the shock absorber system, the front door component, the feeding component, the braking component, the water release valve component, and the control component. The working principle of the fully automatic industrial washing machine is to control the asynchronous motor through the VFD Inverter to perform forward and reverse rotation continuously under the unified scheduling management of the timing controller (CPU), so as to realize the asynchronous operation of water and clothes. In this way, water and clothes are rubbed against each other to achieve the purpose of washing. The main washing procedures are as follows:
Start---Wash--Even cloth--Moderately dehydrated--Highly dehydrated--End
  The transmission system is an extremely important part of the industrial washing machine. It participates in the entire washing process because it mainly provides power support for the washing machine. The transmission system consists of a motor and a VFD Inverter. The entire washing stage automatically adjusts the frequency of the VFD Inverter to achieve constant torque speed change without impact or intermediate transition (gearbox, transmission device or coupling, clutch). The energy consumption of washing is significantly reduced. With excellent performance and cost performance, the VFD Inverter meets the technical difficulties of industrial washing machines such as high starting torque, multi-speed, wide voltage range; automatic slip compensation and fast and powerful communication methods. Moreover, it has stable performance and can adapt to various complex high-temperature and high-humidity environments. It adopts advanced vector control technology to make the washing machine start smoothly, the current is reduced, and the operation is stable during customer use, which is favored by users!