Device and method for measuring flexural stiffness of textile fabric

A technology of bending stiffness and measuring device, which is applied in the direction of testing material strength by applying a stable bending force, can solve the problems of large measurement error, poor practicability, and tradition, and achieve high repeatability, accurate measurement, and exquisite structure Effect

Inactive Publication Date: 2012-06-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fabric bending stiffness tester developed based on these two bending principles is traditional and backward in principle, and has large measurement errors and poor practicability, so it is rarely used in textile enterprises and commodity inspection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Device and method for measuring flexural stiffness of textile fabric
  • Device and method for measuring flexural stiffness of textile fabric
  • Device and method for measuring flexural stiffness of textile fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: Measurement of woven fabric bending stiffness

[0038] ①Choose a pair of moving pins 41 with circular cross-section, rubber-coated surface, and 2 mm outer diameter, and adjust the center distance between the stainless steel rod of the left moving pin and the stainless steel rod of the right moving pin to 6 mm; select the cross-section as a circle Shape, the surface is covered with rubber, fixed needle 51 with an outer diameter of 2mm and a force sensor 52 with a measuring range of 0.1kg and an accuracy of 0.01%; m 2 , the warp yarn arrangement density and the weft yarn arrangement density are 228 / 10cm and 214 / 10cm respectively, the warp yarn count is 68, and the weft yarn count is also 68; On the head 36, the other end passes through the top of a pair of moving needles 41 and the bottom of the fixed needle 51, and then clamped on the other chuck 36 of the clamping mechanism 3, so that the fabric 7 above the left moving needle and the right moving needle ...

Embodiment 2

[0039] Embodiment 2: Measurement of bending stiffness of knitted fabrics

[0040] ① Select a pair of moving pins 41 with an elliptical cross-section of stainless steel rods, rubber-coated surfaces, and an outer diameter of 3 mm, and adjust the center distance between the stainless steel rod of the left moving pin and the stainless steel rod of the right moving pin to 10 mm; the selected cross-section is elliptical shape, the surface is covered with rubber, the fixed needle 51 with an outer diameter of 3mm and the force sensor 52 with a measuring range of 0.1kg and an accuracy of 0.01%; On one chuck 36 of the clamping mechanism 3, the other end passes through the top of a pair of moving needles 41 and the bottom of the fixed needle 51, and then clamped on the other chuck 36 of the clamping mechanism 3; ③Start the second motor 61 to drive the second worm gear 62 and the second gear 63 rotate, thereby rotating the screw mandrel 64, and drive the drive block 65 to drive the bottom...

Embodiment 3

[0041] Example 3: Measurement of bending stiffness of nonwoven fabrics

[0042] ① Select a pair of moving needles 41 with a plum petal-shaped cross section of stainless steel rods, coated polyester film on the surface, and an outer diameter of 10 mm, and adjust the center distance between the stainless steel rod of the left moving needle and the stainless steel rod of the right moving needle to 28 mm; The cross-section is plum petal-shaped, the surface is coated with polyester film, the fixed needle 51 with an outer diameter of 8 mm, and the force sensor 52 with a measuring range of 1 kg and an accuracy of 0.01%; ② Select a non-woven fabric for testing, clamp one end of the non-woven On one chuck 36 of the clamping mechanism 3, the other end passes above a pair of moving needles 41 and below the fixed needle 51, and then clamps on the other chuck 36 of the clamping mechanism 3; ③Start the second motor 61 drives the second worm wheel 62 and the second gear 63 to rotate, thereby...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a device for measuring the flexural stiffness of a textile fabric, which comprises a bottom plate, a frame, a driving mechanism, a needle positioning mechanism, a clamping mechanism and a needle moving mechanism. The rear part of the bottom plate is fixedly connected with the driving mechanism fixed on the frame. The front surface of the bottom plate is fixedly connected with the clamping mechanism and the needle moving mechanism. The needle moving mechanism is positioned below the clamping mechanism. The needle positioning mechanism is fixed on the frame and is positioned between the needle moving mechanism and the clamping mechanism. A method comprises the following steps that: the clamping mechanism clamps the textile fabric; and the driving mechanism drives the bottom plate and the clamping mechanism and the needle moving mechanism which are fixed on the bottom plate to move upwards to construct a three-point beam bending form of the textile fabric, which is formed by the needle positioning mechanism and the needle moving mechanism, so as to obtain the flexural stiffness of the textile fabric. The device for measuring the flexural stiffness of the textile fabric have the characteristics of simple, convenient and effective measurement, scientific and reasonable principle, light mechanism, ingenious structure and capability of being arranged on tensile testers of various micro-force measurement sensors.

Description

technical field [0001] The invention relates to the technical field of textile precision measuring instruments, in particular to a measuring device and method for fabric bending stiffness and hand feel. Background technique [0002] The study of fabric bending stiffness is a very classic subject in textile science and engineering, which directly affects the processing and application of textiles for wear, decoration and industrial use, such as drape-style underwear, crisp outerwear, and burst-resistant industrial canvas, etc. . [0003] Therefore, objective and accurate measurement of fabric bending stiffness is extremely necessary. At present, the bending stiffness of fabrics at home and abroad is mainly measured by the pure bending method of KES-F and the cantilever beam test method of FAST. Although the pure bending method of KES-F can effectively test the bending stiffness of fabrics, it has poor applicability and can only be applied to the measurement of bending prope...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/20
Inventor 杜赵群于伟东周天宪
Owner DONGHUA UNIV
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