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Apparatus and method for reflective measurement of fiber bundle alignment uniformity and fracture morphology

A measuring device and fiber bundle technology, which is applied in the field of optical measurement, fiber bundle fracture form and orientation degree reflective measuring device, can solve the problems of inaccuracy, etc., and achieve the effect of improving accuracy, unique innovation, and simple and easy process

Active Publication Date: 2021-12-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: can only roughly determine the general location of fiber breakage, such as the tip, middle or tail, and cannot be precise

Method used

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  • Apparatus and method for reflective measurement of fiber bundle alignment uniformity and fracture morphology
  • Apparatus and method for reflective measurement of fiber bundle alignment uniformity and fracture morphology
  • Apparatus and method for reflective measurement of fiber bundle alignment uniformity and fracture morphology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The sample is tested with cotton fiber bundles, the tensile speed is 10mm / min, the speed of the stepping motor is 10r / min, and the distance is 10mm. Experimental conditions: temperature 20°C, relative humidity 65%.

Embodiment 2

[0052] The sample is tested with 66 combed wool (2114um), the tensile speed is 10mm / min, the speed of the stepping motor is 10r / min, and the distance is 10mm. Experimental conditions: temperature 20°C, relative humidity 65%.

Embodiment 3

[0054] The sample is tested with Kevlar filament, the tensile speed is 10mm / min, the stepper motor speed is 10r / min, and the distance is 10mm. Experimental conditions: temperature 20°C, relative humidity 65%.

[0055] Test results such as Figure 4 shown.

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Abstract

The invention relates to a reflective measurement device, method and application of fiber bundle fracture form and orientation degree. The measuring device is a measuring system that can be directly installed on the bundle fiber dynamometer to measure the profile of the fracture end and the degree of fiber orientation after the bundle fiber is stretched and broken. It includes a high-resolution wide-angle lens, a high-coefficient CCD camera, and a dot matrix Arranged LED light sources, focusing and magnifying camera platform that can be positioned accurately up and down, translation mechanism that can move accurately left and right horizontally; it also includes a bundle fiber stretching mechanism and its anti-vibration base, data acquisition and mechanism operation module, computer and data analysis coefficients. The device of the present invention is simple in structure, high in measurement accuracy, and real-time dynamic; the measurement method is an analysis method with multiple indicators on one side and multiple passwords on deformation and properties, and is suitable for measuring the bundle strength of textile fibers, the uniformity of fiber bundle arrangement, the tensile strength Consistency of fracture end morphology and evaluation of weak joint characteristics.

Description

technical field [0001] The invention relates to a reflective measurement device, method and application of fiber bundle fracture form and orientation degree, which are applicable to various textile fibers such as wool, hemp and cotton, and belong to the technical field of optical measurement methods. Background technique [0002] Cotton, wool, hemp and other textile fibers are mainly used in the textile industry. The content of fiber bundles and the length distribution after fiber breakage are one of the important indicators for detecting fibers. Therefore, the length distribution after fiber breakage is detected after tensile fracture. One of the important items. [0003] At present, the detection methods used in the world are mainly the following categories: 1. Traditional method: also known as the ruler measurement method, which is to place the broken fiber sample on a black velvet board and measure the fiber density of the whole fiber one by one with a stainless steel ru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01G01N21/84
CPCG01N21/01G01N21/84G01N2021/0112G01N2021/8444
Inventor 于伟东卢笛刘洪玲尤玲玲
Owner DONGHUA UNIV
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