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Yarn winding equipment

A yarn winding and equipment technology, which is applied in the field of yarn tension detection, can solve the problems of determining the resonance level and difficulty in measuring the tension, and achieves the effects of reducing errors, reducing chances, and reducing friction

Inactive Publication Date: 2005-04-27
TORAY ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] In addition, in the method of detecting the resonance point by seeking the resonance frequency, there are primary, secondary,...n resonance frequencies, which makes it difficult to determine the resonance level only based on the frequency amplitude, making it difficult to measure the tension

Method used

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  • Yarn winding equipment
  • Yarn winding equipment
  • Yarn winding equipment

Examples

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Embodiment Construction

[0071] figure 1 The first embodiment of the system for measuring yarn tension of the present invention is outlined. This system is used to measure the tension of the yarn 100 moving along the yarn channel, and is configured to include a vibration applying unit 1, which measures the apparent propagation velocity of transverse waves generated by the yarn 2, and a vibration applying unit that applies vibration to the yarn. According to the measured apparent propagation speed and the measured yarn speed, the calculation unit 3 to calculate the actual propagation speed of the transverse wave, and to send the required signal to allow the observer to observe the calculated tension value and allow the controller to be required. Mode work input / output interface 4.

[0072] In the above case, the transverse wave propagation speed refers to the speed of movement of the yarn transversely to its movement direction.

[0073] Such as figure 2 As shown, the vibration applying unit 1 structural...

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Abstract

An apparatus, for measuring a yarn tension, capable of preventing a filament breakage or loop from being generated while eliminating the necessity of adjustment and keeping a desired precision of measurement. The apparatus is constructed by an unit 1 for an application of a vibration to a yarn being moved, an unit 2 for measuring an apparent transverse wave propagation velocity of the yarn, and a unit 3 for calculating a true transverse wave propagation velocity based on the yarn speed and the calculated apparent transverse wave propagation velocity of the yarn. A control of a winding of the yarn in accordance with a propagation velocity of the transverse wave is also disclosed.

Description

Technical field [0001] The invention relates to a method and equipment for detecting yarn tension and a yarn winding method. Background technique [0002] As is well known, during the winding process of synthetic fiber yarn, the desired yarn tension value varies with the winding conditions such as the thickness of the yarn, the feeding speed of the yarn, the type of yarn, and so on. [0003] When the tension of the winding is too high, so-called unevenness will occur. At this time, the finished yarn package will have unevenness on its side. When the package is transported in the container, it may be rubbed. It is not easy to take out the yarn smoothly during the subsequent package processing. In addition, the so-called sinking phenomenon occurs, that is, the package sinks in the center part of its periphery, which makes the yarn quality different between the center part and the end part of the outer periphery of the package, causing these parts to have problems in later stages. D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H59/40G01L5/04
CPCB65H2557/61B65H59/40G01L5/042B65H2701/31
Inventor 岩出桌今江正澄
Owner TORAY ENG CO LTD