Rotor spinning single-spindle doffing motor control method

Abstract

The invention discloses a rotor spinning single-spindle doffing motor control method, which is characterized in that a stepping motor driving module is connected with a 24V power supply and a sampling resistor and is provided with a reference voltage control pin, the reference voltage control pin is connected with a single chip microcomputer filled with a control program through a control circuit, and the control circuit comprises a working current control branch and a starting current control branch. A triode collector of the starting current control shunt and a diode cathode of the working current control shunt are connected in parallel and are connected with a reference voltage control pin; the rotating speed of a yarn leading motor is set according to the spinning technology, the working current value and the starting current value required by the yarn leading motor theory are calculated according to the rotating speed of the yarn leading motor, then the reference voltage is determined according to the relation that the reference voltage is equal to the working current multiplied by three times of the sampling resistance value, and the single-chip microcomputer adjusts the reference voltage in real time through a control circuit. Therefore, the working current of the doffing motor is at the theoretically required working current value, the problem that invalid power consumption is generated in the running process of the doffing motor is solved, and energy consumption is saved.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and particularly relates to a control method for a single-spindle yarn drawing motor of air-jet spinning for realizing energy saving and consumption reduction. Background technique [0002] The open-end spinning machine has realized single-spindle yarn delivery. The yarn-delivery roller of each spindle is driven by a stepper motor independently, and the operation of the stepper motor is driven and controlled by the drive module. During the spinning start and normal spinning, the load of the stepping motor is different, and the yarn feeding speed is also different when different kinds of yarn are spun. The yarn feeding stepper motor drive of the existing open-end spinning machine cannot adjust the starting current and the working current in real time, resulting in ineffective power consumption and energy waste. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of ineffective power consumption caused by the stepping motor drive mode of the single-spindle yarn introduction of the existing air spinning machine, and to provide an air spinning single-spindle yarn guide that can avoid the generation of ineffective power consumption during the yarn introduction process. Yarn motor control method

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