A method and device for detecting and removing yarn strength and weak links

A yarn and strength technology, applied in the field of yarn strength and weak loop detection and removal, can solve problems such as affecting production efficiency and benefits, reducing yarn strength, and reducing tensile strength, so as to improve production efficiency and benefits. The effect of reducing dead ends and increasing the scope of application

Active Publication Date: 2017-10-27
江苏圣蓝科技有限公司
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Problems solved by technology

[0002] During the yarn production process, due to process defects, equipment failures and environmental factors, the strength of some yarns is reduced and the tensile strength is reduced
The use of this yarn in subsequent processes (warping, sizing and weaving) will cause end breaks, seriously affecting production efficiency and benefits
Currently, there is no efficient way to measure yarn strength weak loops

Method used

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  • A method and device for detecting and removing yarn strength and weak links
  • A method and device for detecting and removing yarn strength and weak links
  • A method and device for detecting and removing yarn strength and weak links

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0035] Such as figure 1 As shown in the present invention, a device for detecting and removing weak rings of yarn strength includes a capacitive sensor for obtaining a signal of uneven thickness of the yarn passing through a capacitive sensor test slot, and a photoelectric sensor for obtaining yarn The uneven diameter signal D of the thread passing through the photoelectric sensor test groove; the CPU, including the first processing unit, calculates the number of fibers in the yarn section Tn according to the linear relationship between the number of fibers in the yarn section Tn and the yarn linear density M; The second processing unit, according to the formula Calculate the yarn density ρ value; the judging unit judges whether the density p value is lower than the p value threshold v...

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Abstract

The invention discloses a method and a device for detecting and removing weak links of yarn strength. The device is composed of capacitive sensors, photoelectric sensors and several processing units. The yarn passes through the capacitive sensor and the photoelectric sensor at the same time, and the signal of uneven thickness and diameter of the yarn is sent to the relevant processing unit for processing. After the yarn passes through the capacitive sensor, the signal of uneven yarn thickness is output and sent to the processing unit for processing, and the output yarn density is uneven to calculate the number of yarns in the cross-section Tn. When the Tn of a certain section of yarn is lower than a certain value and the value of ρ is lower than the threshold value, there is a strong weak link in this section of yarn. The invention provides a method and device for online detection of yarn weak loops, which can be removed as required. It reduces the downtime stoppage caused by the strong weak ring of the yarn, and improves the production efficiency and benefit.

Description

【Technical field】 [0001] The invention relates to the winding process of yarn production in the spinning industry and the quality inspection of yarn products, in particular to a method and device for detecting and removing strong and weak links of yarn. 【Background technique】 [0002] During the yarn production process, due to process defects, equipment failure and environmental factors, the strength of some yarns is reduced and the tensile resistance is reduced. The use of this yarn in subsequent processes (warping, sizing and weaving) will cause end breaks, seriously affecting production efficiency and benefits. Currently, there is no efficient way to measure yarn strength weak spots. In the yarn laboratory, the average breaking strength of the yarn is measured with a single yarn strength meter. Average breaking strength does not reflect yarn strength weak spots. Due to the small number of test samples, the probability of being able to detect weak spots in the yarn is v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H13/32
Inventor 韦德怀杨敏杨俊海王晓静冯亚民王周武程继红刘向全
Owner 江苏圣蓝科技有限公司
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