Yarn feeding control method and device based on yarn feeding buffer rod

Abstract

The application discloses a yarn conveying control method and device based on a yarn feeding buffer rod, the method comprising obtaining a deflection vector of the buffer rod, the deflection vector comprising a deflection angle and a deflection direction; the buffer rod is driven by a tension motor and generates deflection; the running speed of a yarn motor is adjusted according to the deflection vector of the buffer rod, so that the pulling force of the yarn on the buffer rod and the driving force of the tension motor on the buffer rod reach dynamic balance; control parameters reaching the dynamic balance are obtained, the control parameters at least comprising the deflection vector of the buffer rod, the running speed and speed change of the yarn motor, and the deflection position of the buffer rod; high-quality parameters are obtained by screening the control parameters according to the deflection position of the buffer rod, a regulation and control model between the deflection vector and the running speed is established based on the high-quality parameters; the deflection vector of the buffer rod is obtained in real time, the deflection vector is input into the control model and regulation and control parameters are output, and the yarn motor executes the regulation and control parameters to reach the dynamic balance.

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