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Fiber friction coefficient testing device and testing method thereof

A friction coefficient and testing device technology, which is applied to measuring devices, mechanical devices, instruments, etc., can solve the problems of small force value measurement range, low force value resolution, operation error, etc., and achieve force measurement accuracy and range improvement. Effect

Active Publication Date: 2015-08-19
上海新纤仪器有限公司 +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The instrument can only set 8 gears of friction roller rotation speed through the gear box, and cannot provide more rotation speeds to study the influence of friction roller rotation speed on fiber friction coefficient
The force measuring device of this instrument uses a torque balance, and its force value resolution is low (0.5×10 -3 cN), the force measurement range is small (250×10 -3 cN), turning the handle of the torque balance and manual visual readings may cause operational errors, and require a high level of proficiency for the operator

Method used

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  • Fiber friction coefficient testing device and testing method thereof
  • Fiber friction coefficient testing device and testing method thereof
  • Fiber friction coefficient testing device and testing method thereof

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] see figure 1 , which is a structural schematic diagram of a preferred embodiment of a fiber friction coefficient testing device of the present invention. As shown in the figure: it includes friction roller 2, hook 3, first tension clamp 4, second tension clamp 5, first stepper motor 6, force sensor 7, amplifier 8, first pulse distributor 17, computer 19 and Its input and output equipment; wherein: the friction roller 2 is hung with a sample 1 with a wrapping angle; the first tension clamp 4 clamps one end of the sample 1, and the first tension clamp 4 is connected to the force sensor 7 through the hook 3 ; The force value resolution of the force sensor 7 is 0.25×10 -3 Below cN, the measuring range of force value is 1000×10 -3 More than cN; the force sensor 7 is further connected with the computer 19 through the amplifier 8; the second tension ...

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Abstract

The invention relates to a fiber friction coefficient testing device and a testing method thereof. The fiber friction coefficient testing device comprises a friction roller, a hook, a first tension clamp, a second tension clamp, a first stepping motor, a force sensor, an amplifier, a first pulse distributor, a computer and input-output equipment; the structure can be used for testing the fiber friction of the friction roller in a rotating manner; the testing device further comprises a second stepping motor, a first gear, a synchronous toothed belt, a second gear, a screw rod, a screwed block, an upper limiter, a lower limiter and a second pulse distributor. The additional structure can be used for testing the fiber friction of the friction roller in a lifting manner. According to the testing device and the testing method, the testing precision is high, the testing efficiency is high, the fluctuation changing curve of frication force can be displayed in real time, the fiber friction coefficient can be automatically analyzed and the friction force variation can be detected.

Description

technical field [0001] The invention belongs to the field of fiber material measuring instruments, in particular to a fiber friction coefficient testing device and a testing method thereof. Background technique [0002] The fiber friction coefficient refers to the ratio of the friction force between two contact surfaces to the vertical force acting on one surface, which is related to the roughness of the fiber surface and has nothing to do with the size of the contact area. Fiber friction coefficient is closely related to textile production and yarn properties. In the process of fiber spinning, in some cases, it is necessary to increase the friction between fibers, such as roller pressure, yarn twisting, etc.; in other cases, it is necessary to reduce the friction between fibers, such as chemical fiber oiling agent, fiber Channel clean, etc. Fiber friction properties will also affect the hand feeling, pilling, wear resistance and wrinkle resistance of its finished products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/02
Inventor 李汝勤黄新林张瑞云俞雯沈春龙孙世元徐国良纪峰凌峥吴林根黄范范
Owner 上海新纤仪器有限公司
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