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A single wire bending performance testing device and method

A testing device, monofilament bending technology, applied in the direction of measuring device, using stable bending force to test material strength, strength characteristics, etc. No advanced problems, to achieve the effect of wide range of test objects, easy operation and reasonable methods

Active Publication Date: 2019-12-31
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some methods that can be seen in the current reports, such as the "four-point bending method", that is, hold both ends, apply an equal load at the two third points in the middle, and calculate the bending stiffness through the fracture strength of the sample. However, this method The actual operation is relatively complicated, so it is rarely used; there is also the "cantilever beam method", that is, one end of the sample is held to apply a load to the other end, and the force value is measured with a torsion balance. Constantly changing, so the accuracy is not high; In addition, the "circle-shaped ring hanging weight method", the sample is made into a ring and hung on the fulcrum, and a certain quality of the floating code is hung at the lower end, which is calculated by measuring the sag of the ring after stabilization Bending stiffness, because the self-weight has a great influence on the measurement results in this method, so the error is also large
In short, the above methods cannot effectively reflect the bending performance of monofilaments.

Method used

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  • A single wire bending performance testing device and method
  • A single wire bending performance testing device and method
  • A single wire bending performance testing device and method

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Embodiment Construction

[0026] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0027] The invention relates to a monofilament bending performance testing device, comprising a frame, the frame is provided with a groove perpendicular to the horizontal plane; a platform is arranged in the groove; a sample fixing mold is installed on the platform; A presser foot is fixed above the groove; a pressure sensor is connected to the presser foot; when the platform rises along the groove, the arched highest point of ...

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Abstract

The invention relates to a device for testing bending properties of a monofilament. The device comprises a rack, wherein the rack is provided with a groove perpendicular to a horizontal plane; a platform is arranged in the groove; a test sample fixing mold is mounted on the platform; a presser foot is fixed above the groove and connected with a pressure sensor; when the platform moves up along the groove, the highest arch point of a test sample fixed on the test sample fixing mold is in contact extrusion with the presser foot to ensure that the pressure sensor measures a pressure; the pressure sensor is connected with a computer, and the computer is connected with the platform through an alternating current servo driving system. The invention also relates to a test method of the test device. The device and the method provided by the invention have the advantages of straight and accurate data, reasonable and easily-operated method, and wide test objects.

Description

technical field [0001] The invention relates to the technical field of textile precision measuring instruments, in particular to a monofilament bending performance testing device and method. Background technique [0002] With the in-depth and extensive application of monofilament in civil fields, such as wedding dresses, evening dresses, knitted fabrics, and industrial webbing, printing screens, filter materials, and pipe network weaving, the bending performance of monofilaments is used to measure the wearability of products. However, it has not been paid enough attention by people, and there is also a lack of uniform testing standards. Some methods that can be seen in the current reports, such as the "four-point bending method", that is, hold both ends, apply an equal load at the two third points in the middle, and calculate the bending stiffness through the fracture strength of the sample. However, this method The actual operation is relatively complicated, so it is rarel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/20
CPCG01N3/20G01N2203/0003G01N2203/0023G01N2203/0075G01N2203/028G01N2203/0647
Inventor 付少举张佩华鲁瑶沈建明危惠敏徐晓霞沈嘉丽卢佳佳江俊樾
Owner DONGHUA UNIV
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