plc在棉纺细纱机电气控制系统的应用（Application of PLC in electric control system of cotton spinning frame）.docVIP

plc在棉纺细纱机电气控制系统的应用（Application of PLC in electric control system of cotton spinning frame） Application of PLC in electric control system in cotton spinning machine Source: 07-03-18 12:07:38 English version: the entry time 1 Introduction FA506 spinning machine is the good yarn quality, high degree of automation, simple operation, convenient management of ring spinning machine, spinning process is suitable for cotton or chemical fiber pure yarn and blended, especially using PLC as the controller, not only improves the control precision, but also solves many defects existing in the production management, can weaving and knitting yarn. PLC is used to control the whole spinning process of the electric control system of FA506 spinning machine, spinning process required for automatic driving and automatic lifting ring plate, stop automatically after tracking, automatic driving and automatic doffing with first-class function. Can set the display parameters of spinning, the realization of fixed length and spindle speed curve doffing control and shift production functions such as cumulative. The process of spinning spindle speed, traction ratio, yarn count, twist, calculate and display automatically, and on the basis of machine parts sensor automatic coordinated control. The digital communication, improve the systems anti-jamming ability. 2 system components 2.1 hardware The electric control system of FA506 spinning machine hardware includes the following parts: the transmission part and detection, frequency converter, programmable controller, man-machine interface, digital communication. See figure 1. The sensor, the instruction switch signal input part In part by the spindle, and Laura sensor, position sensor, forming cam ring plate stroke sensor and command switch, spindle, and Laura sensor for velocity measurement, calculated by the PLC and the corresponding spindle speed, spinning length, yield, draft ratio, twist, spinning, etc.; forming the peach wheel position sensor