China is the world's largest textile country and owns more than 100,000 textile and garment companies. Frequency converter has a huge application space in the field of textile machinery. A wide range of textile machinery, spinning machinery, weaving machinery, knitting machinery, chemical fiber machinery, dyeing and finishing machinery, etc., generally low-power, low-frequency frequency converter is widely used in open cleaning machine, carding machine, lap machine, combing Machines, drawing machines for roving machines, spinning machines, and Luojian machines, etc. For weaving machines, there are sizing machines, warping machines, etc. The role of frequency converters in various types of machinery is not the same, but highly efficient, energy-saving, environmentally-friendly textile machinery is a must-have technology for China from a big textile country to a strong textile country. Taking the A186E carding machine as an example, the main process is to open the cleaning machine, and the subsequent process is a draw frame, which is mainly used to process cotton fibers and chemical fibers. The cotton (chemical fiber) roll sent from the previous process or the cotton (chemical fiber) layer supplied from the cotton box is opened and combed and removed. To make all the curled and massive cotton masses into a basically straight single fiber state, and in the process, to remove the broken seeds, impurities and short fibers left from the cleaning process, and then bundling into certain specifications of slivers, Stored in a canister for use in a draw process. Because it is an old machine, there are certain defects in the technology, electromagnetic clutch due to high failure, a fire alarm from time to time, to produce a certain loss of production efficiency and product quality, now in order to make the doffer rise, slow down, designed in mechanical transmission The two-speed motor adopts AC variable speed control to achieve arbitrary adjustment of the Ascending ramp slope, and any variable function of the doffer process speed. The content of this technology includes advanced information processing and control technology, that is, a computer as the core, a control system consisting of PLC, industrial control computer, single-chip microcomputer, human-machine interface, field bus, etc.; advanced drive technology, with frequency control , AC servo, stepper motor and so on.
1. Restructuring plan According to the carding machine operation practice and the level and development of the current control field, the guiding ideology for the transformation of the A186E carding machine is determined: electromechanical separation, centralized control, and real-time monitoring. The purpose is to separate the electrical control system from the mechanical system structure to facilitate the maintenance and repair of the electromechanical system. The separate hardware logic control system is changed to a modular centralized control to improve the card control level and enhance the system reliability. The use of intelligent technology for real-time monitoring of the operation of the card, to guide the operator. The key to the A186E electrical transformation is to remove the original relay control system of Xilin Motor and Doffer Motor, and use the PLC to control the inverter program. The new control system takes the Panasonic FP0 PLC as the control core and uses two JBA series inverters as the main control unit to control the operation of the carding machines Xilin and Doffer.
1. Restructuring plan According to the carding machine operation practice and the level and development of the current control field, the guiding ideology for the transformation of the A186E carding machine is determined: electromechanical separation, centralized control, and real-time monitoring. The purpose is to separate the electrical control system from the mechanical system structure to facilitate the maintenance and repair of the electromechanical system. The separate hardware logic control system is changed to a modular centralized control to improve the card control level and enhance the system reliability. The use of intelligent technology for real-time monitoring of the operation of the card, to guide the operator. The key to the A186E electrical transformation is to remove the original relay control system of Xilin Motor and Doffer Motor, and use the PLC to control the inverter program. The new control system takes the Panasonic FP0 PLC as the control core and uses two JBA series inverters as the main control unit to control the operation of the carding machines Xilin and Doffer.