A method for controlling the winding tension of a multi-head yarn dyeing locomotive

Abstract

The invention provides a control method for frame head winding tension of a multi-frame head yarn dyeing machine and relates to the field of dyeing and finishing in the textile industry. A multi-frame head yarn dyeing machine comprises a traction motor, winding motors and frame heads; each frame head comprises a spool and yarn; the winding motors drive the frame heads to perform winding of yarn. By controlling the torques of the winding motors, the multi-frame head yarn dyeing machine keeps the winding tension of the frame heads constant; the torques of the winding motors include a diameter compensation torque used for compensating for the change of winding radiuses of the frame heads, an accelerating torque used for starting acceleration of the frame heads, and a friction force torque used for overcoming the winding friction force of the frame heads. The control method for frame head winding tension of a multi-frame head yarn dyeing machine has the advantages that the winding tension of the frame heads can be kept constant by controlling the torques of the winding motors, so that the winding tension of the frame heads can be accurately controlled, the mechanical structure of the multi-frame head yarn dyeing machine is simplified, the apparatus cost is reduced and the apparatus maintenance workload is reduced.

Description

technical field [0001] The invention relates to the field of dyeing and finishing in the textile industry, in particular to a method for controlling the winding tension of a multi-head yarn dyeing locomotive. Background technique [0002] In the dyeing and finishing process in the textile industry, multi-head yarn dyeing machines dye packages, etc. The existing multi-head yarn dyeing machines have high energy consumption, the yarns are easy to fade, and cause serious environmental pollution. Under the background of the state calling for energy-saving and emission reduction of enterprises, these old equipment will be gradually eliminated and replaced by the current high-temperature and high-pressure dyeing machines. . The current high temperature and high pressure dyeing machine is limited by the process conditions, each head of the yarn winding needs to have a tension roller, a traction motor and a winding motor. By controlling the winding speed of the winding motor, the ya...

AI Technical Summary

Problems solved by technology

The existing multi-head yarn dyeing machines have high energy consumption, the yarns are easy to fade, and cause serious environmental pollution. Under the background of the state calling for energy-saving and emission reduction of enterprises, these old equipment will be gradually eliminated and replaced by the current high-temperature and high-pressure dyeing machines.

The current high temperature and high pressure dyeing machine is limited by the process conditions, each head of the yarn winding needs to have a tension roller, a traction motor and a winding motor. By controlling the winding speed of the winding motor, the yarn winding tension can be adjusted. Stable, if this method of controlling the winding speed is used for production, the winding tension of the yarn will be unstable, and the mechanical structure of the yarn dyeing machine is complicated, and the cost is high.

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