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Test device and test method for thermal shrinkage ratio of chemical fiber filaments

A technology of testing device and testing method, which is applied in the direction of material thermal expansion coefficient, etc., can solve problems such as difficulty in calibration and calibration of instrument force value, influence on test accuracy, inconvenient operation and use, etc., to achieve reduced instrument volume and weight, accurate measurement structure, and easy operation and use convenient effect

Inactive Publication Date: 2015-08-19
ANHUI LUXUN ELECTRONICS TECH
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

It is not suitable for products that only need to be tested for heat shrinkage rate in chemical fiber filaments and do not need to be tested for crimp rate
In addition, in the force measurement method, the upper end of the skein sample is fixed, the load cell moves downward and is inserted above the lower hook plate, and the force is applied downward to the skein sample, and the length of the skein sample is measured under a certain tension. , this measurement method load cell is forced from bottom to bottom, which brings difficulties to the calibration and calibration of the force value of the instrument, which not only affects its test accuracy but also brings inconvenience to operation and use.
In addition, the skeined wire sample of this instrument has a circumference of 1 meter and a length of 500 mm after hanging. The instrument is bulky and expensive

Method used

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  • Test device and test method for thermal shrinkage ratio of chemical fiber filaments
  • Test device and test method for thermal shrinkage ratio of chemical fiber filaments
  • Test device and test method for thermal shrinkage ratio of chemical fiber filaments

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Embodiment Construction

[0030] see figure 1 -3. The invention discloses a test device for thermal shrinkage rate of chemical fiber filaments. Such as figure 1 As shown, the main innovation of the present invention is that it includes a double limiter structure and a load cell 11; the double limiter structure includes 1, an upper hook 2, a lower hook 3, an upper hook plate 4, and an upper limiter 5 , the lower hook plate 6, the lower limiter 7, the metal guide wire 8, 9; the upper hook 2 is connected to the bottom of the upper hook plate 4, and the upper hook plate 4 is located above the upper limiter 5 and is limited to the upper limiter 5 slides along the metal guide wire above; the lower hook 3 is connected to the top of the lower hook plate 6, and the lower hook plate 6 is located below the lower limiter 7 and is limited to slide along the metal guide wire below the lower limiter 7; The wire fork 12 of the toggle mechanism of the load cell 11 can support the upper hook plate 4 and move upwards t...

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Abstract

The invention relates to a test device and test method for the thermal shrinkage ratio of chemical fiber filaments. The test device comprises a double-limiter structure and a force measuring sensor; the double-limiter structure comprises an upper hanging hook, a lower hanging hook, an upper hanging hook disc, an upper limiter, a lower hanging hook disc, a lower limiter and metal lead wires; through mounting the force measuring sensor and a toggle mechanism connected with the force measuring sensor, the upper hanging hook disc can be supported to move upwards, the lower hanging hook disc upwards moves to the lower limiter and then is blocked to stop moving, the upper hanging hook disc continues to rise and applies a tensile force to a reeled silk sample, the force measuring sensor bears a downwards-directional load, and length values of the reeled silk sample before heating and after heating under preset standard tension are automatically measured by instruments, so that the thermal shrinkage ratio of a chemical fiber filament sample is measured. By adopting the test device and the test method, the accuracy of measuring of the thermal shrinkage ratio of the chemical fiber filament sample is obviously increased, a force measuring system is convenient to standardize and calibrate and is reliable in structure, and the failure rate is greatly lowered.

Description

technical field [0001] The invention belongs to the field of textile and chemical fiber measuring instruments, in particular to a test device and a test method for the thermal shrinkage rate of chemical fiber filaments, which are suitable for the quality control of chemical fiber factories and the inspection of fiber quality by textile enterprises and testing institutions. Background technique [0002] The thermal shrinkage rate of chemical fiber filament is one of the main parameters to characterize the structure and properties of the fiber. It is a comprehensive performance index related to the process of forming and post-processing of chemical fiber filament. It characterizes the dimensional stability of product post-processing and product consumption. . The thermal shrinkage rate of chemical fiber filaments is closely related to the finishing process and the dyeing performance of the product, which directly affects the wearing performance and appearance of the fabric. T...

Claims

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Application Information

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IPC IPC(8): G01N25/16
Inventor 不公告发明人
Owner ANHUI LUXUN ELECTRONICS TECH
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