A rotary yarn carrier power transmission and tension compensation method and system

Abstract

The invention relates to a method and a system for electric energy transmission and tension compensation for a rotary yarn carrier. The system comprises a position detection device, a signal processing control circuit, a yarn conveying rotation device and a guide rail, wherein the position detection device is capable of running along the guide rail; the position detection device, the signal processing control circuit and the yarn conveying rotation device are electrically connected in sequence; the guide rail is a guide rail with an electric energy transmission function, and electrically connected with the signal processing control circuit and the yarn conveying rotation device respectively. The system disclosed by the invention is capable of actively and continuously controlling the tensions of yarns; the fluctuation ranges of the yarns are controlled in a feed-forward manner by detecting the tension fluctuation trends of the yarns, thus furthest stabilizing tensions on the braided yarns, and enabling the reeling degree of the surface of a braided fabric to be consistent.

Description

technical field [0001] The invention relates to a composition system of a three-dimensional circular knitting machine, in particular to a rotary yarn carrier power transmission and tension compensation method and system thereof, which belong to the technical field of textile machinery. Background technique [0002] The three-dimensional circular knitting machine realizes the weaving process through the rotation of the braiding disc and the movement of the mandrel extracting device in a three-dimensional ring. The rotation of the braiding disc is realized by the regular periodic movement of the yarn carrier on the guide rail. Since the purpose of the weaving disk is to provide the required yarn for weaving, the amount of yarn fed on the yarn carrier will determine the mechanical properties and aesthetic effects of the braided fabric. The yarn feeding amount is output based on the yarn tension as a reference standard, so stable tension is an important indicator for the design ...

AI Technical Summary

Problems solved by technology

However, its position detection device uses infrared detection method, which is relatively expensive in price, and because this detection method uses single-point detection, continuous position detection cannot be performed, and there is still room for improvement in detection accuracy.

[0005] In order to simplify the power wiring, the active tension control yarn carrier is basically powered by batteries, but battery replacement has obviously become a bottleneck for improving production efficiency.

Although a few yarn carriers use non-contact mobile power supply, the technology is not yet mature and expensive

In terms of adjustment methods, most of the current adjustment methods use feedback. Although this method is stable and reliable, there is still the problem of adjustment lag.

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