Leather needle eye tearing test fixture and test method thereof

A test fixture and test method technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problem of slipping of round rods, inability to accurately reflect the stress of leather, and inability to measure leather tension, etc. problem, to achieve the effect of low cost, simple structure and strong practicability

Inactive Publication Date: 2009-10-14
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the leather of the car seat is stitched, it is necessary to investigate the damage of the needle hole to the leather. At present, each testing machine manufacturer does not have a fixture for this test, and it is impossible to measure the tensile force that the leather near the needle hole can withstand.
Some test items are tested with other substitute fixtures and round rods. When the round rods and substitute fixtures are used together, the round rods often slip off, so that the test results cannot accurately reflect the force of the leather near the needle hole.

Method used

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  • Leather needle eye tearing test fixture and test method thereof
  • Leather needle eye tearing test fixture and test method thereof
  • Leather needle eye tearing test fixture and test method thereof

Examples

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Embodiment Construction

[0014] A leather pinhole tear test fixture, comprising a chuck 10 composed of first and second clamps 11 and 12, the clamp 10 is U-shaped, and the first and second clamps 11 and 12 are provided with pins for use 30 through the first and second through holes 111, 121, such as figure 1 shown.

[0015] combine figure 1 , 2 , 3, 4, the first and second clamps 11 and 12 are two plates with parallel plates, and the plates of the first and second clamps 11 and 12 are respectively provided for the passage of pins 30 The first and second through holes 111, 121. The chuck 10 is provided with a cylindrical body 20 upwards, and a third through hole 21 is opened on the cylindrical body 20 to cooperate with the upper jaw of the tensile machine. The clamp is installed and fixed on the tensile machine through the cylindrical body 20, and the tensile machine drives the clamp to move upward. . "Upward" referred to in the present invention refers to the moving direction of the tensile machi...

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Abstract

The invention relates to a leather needle eye tearing test fixture which comprises a fixture head consisting of two clamps; the two clamps are respectively provided with a first through hole and a second through hole for pins to pass through. The invention also discloses a test method of the leather needle eye tearing test fixture. The test method utilizes the upward movement of pins to simulate the damage to the leather by the sewing needle eye, thereby obtaining the tearing strength and relevant performance parameters of the leather needle eye accurately and effectively. The test fixture has the advantages of simple structure, convenient operation, low cost and high practicality.

Description

technical field [0001] The invention relates to a fixture, in particular to a leather pinhole tear test fixture and a test method thereof. Background technique [0002] After the leather of the car seat is stitched, it is necessary to investigate the damage of the needle hole to the leather. At present, various testing machine manufacturers do not have fixtures for this test, and it is impossible to measure the tensile force that the leather near the needle hole can withstand. Some test items are tested with other substitute fixtures and round rods. When the round rods and substitute fixtures are used together, the round rods often slip off, so that the test results cannot accurately reflect the force of the leather near the needle hole. Contents of the invention [0003] The primary purpose of the present invention is to provide a leather pinhole tear test jig that can accurately and efficiently detect the strength of the leather after sewing. [0004] In order to achiev...

Claims

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Application Information

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IPC IPC(8): G01N3/04G01N3/08
Inventor 王健王太海赵成旺
Owner CHERY AUTOMOBILE CO LTD
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