System for measuring dynamic friction coefficient of yarns

Abstract

The invention discloses a system for measuring a dynamic friction coefficient of yarns. The method comprises a pre-tensioning device, start-stop buttons, a first tension measuring device, a second tension measuring device, a buffer device, a proximity switch, pulleys, indicator lights, a rotating speed measuring device for measuring a running speed of the yarns, a rotating speed adjusting knob, ayarn guiding device, a tangling device, a first stepping motor and an input roller mounted on a spindle thereof, a second stepping motor and an output roller mounted on the spindle thereof, an air tube connected with the yarn guiding device, an air pump connected with the air tube and a residual yarn basket for collecting residual yarns, which are mounted on a front panel of a chassis, as well asa power supply module, an analogue collection module, a relay module, a communication module and a stepping motor driver mounted on the back of the front panel of the chassis. The system provided by the invention has advantages of low use cost, simple operation, capability of testing a constant tension, high detection efficiency and test precision, implementation of real-time control, breakage self-stopping function, buffer anti-breakage function and the like.

Description

Technical field [0001] The invention relates to a yarn dynamic friction coefficient measuring instrument, in particular to a yarn dynamic friction coefficient measuring system. Background technique [0002] The yarn dynamic friction coefficient measurement system mainly tests the dynamic friction coefficient between the same kind of yarns. The dynamic friction coefficient is an important physical property of the yarn. The dynamic friction coefficient of the yarn directly affects the technical effect of the fabric. The study of the dynamic friction coefficient of the yarn can provide a scientific basis for improving the process, selecting the oil or sizing formulation, and studying and improving the surface properties of the textile equipment or the tension parts of the yarn guide. [0003] At present, most domestic universities, research institutes and manufacturers use the imported CTT yarn comprehensive quality evaluation system and the domestic LFY-110 yarn friction coefficient...

AI Technical Summary

Problems solved by technology

[0004] (1) The system is complex in structure and redundant in function;

[0005] (2) The operation is complicated, and it is not easy for non-professionals to operate;

[0006] (3) It is expensive and not suitable for small factories;

[0007] (4) The body is heavy and difficult to carry

[0009] (1) When measuring the dynamic friction coefficient, the yarn is easy to untwist;

[0010] (2) The operating speed range is small, which cannot meet the requirements of use;

[0011] (3) The test accuracy is low;

[0012] (4) The tension cannot be constant

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