Device for testing axial compressibility of fiber material

Abstract

The invention relates to a device for testing axial compressibility of a fiber material, which can broaden the testing scope and improve the testing efficiency and accuracy. In the technical scheme, the device comprises a testing table, a digital type electronic push-pull force gauge and a measuring and controlling computer, wherein an upright column with a vertical slide rod is arranged on a base of the testing table, the electronic push-pull force gauge is connected with the slide rod in a sliding way through a slide block, the end of a testing rod on the lower end of the electronic push-pull force gauge is provided with an upper testing head, and the upper testing head is a disc type testing head or an upper clamp; and a lower clamp corresponding to the upper testing head is arranged on the testing table. The invention not only simplifies the testing device and the operating method, but also eliminates the factors affecting the reproducibility in the testing process. Moreover, the invention broadens the application scope of the device, can reliably, accurately and simply clamp the sample, and has high reproducibility and maneuverability.

Description

technical field [0001] The invention relates to an instrument for testing the axial mechanical properties of fiber materials, which belongs to the technical field of testing. Background technique [0002] Fiber material is a slender object whose length is hundreds of times or more than a thousand times larger than the fineness. It is an important industrial raw material and is mainly used in the processing of clothing, decoration and industrial textiles. The mechanical and physical properties of fibers not only have a great influence on the processing and manufacturing process of fiber products (such as yarn, thread, fabric), but also have a significant impact on the performance of the final product. The impact of the axial compression and bending properties of the fiber on the quality or performance of the final product is mainly manifested in the following aspects: ① It affects the distribution of hairiness on the surface of the fabric (the fiber head exposed on the surfac...

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Problems solved by technology

[0007] 3. During the detection process, the axial alignment of the sample must be adjusted for each test, and the monitoring of the alignment process needs to be achieved through visual inspection, and the operability is not high;

[0008] 4. Since the radial size of the fiber sample is very small, when different brands of double-sided adhesive are used, the difference in the properties of the double-sided adhesive (mainly the difference in thickness) will cause the difference in the constraint conditions of the fiber sample, resulting in the difference in the test results , making the test results under different conditions lack of precise comparability

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