Abstract:

To further enhance the autoleveling technology of drawing frame, a new type of dual open-loop control system was issued based on the analysis of the quality of the current autoleveling control system of drawing frame. This paper presented a mathematical model of the new control system, analysed its mathematical theory, and elucidated the theoretical basis of dual open-loop autolevelling control system. By comparing the open-loop control system, closed-loop control system and mixed-loop control system, the paper arrived a conclusion that the new control system could shorten the blind area, eliminate the dead area, and autolevel cotton sliver twice. Through performance analysis , the dual open-loop control system could achieve a better effect.