基于缠结法的新型纱线动态摩擦系数测量仪器研制  

Development of New Yarn Dynamic Friction Coefficient Measurement Instrument Based on Entanglement method

作　　者：谢军 李莎[1,2] 蒋铭媛 左召光 刘皓 XIE Jim;LI Sha;JIANG Ming-yuan;ZUO Zhao-guang;LIU Hao(School of Mechanical Engineering,Tianjin Polytechnic University,Tianjin 300387;School of Textile,Tianjin Polytechnic University,Tianjin 300387;Institute of Smart Wearable Electronic Textiles,Tianjin Polytechnic University,Tianjin 300387;Key Uaboratory of Advanced Textile Composites of Ministry of Education,Tianjin 300387)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]智能可穿戴电子纺织品研究所,天津300387 [3]天津工业大学纺织学院,天津300387 [4]天津工业大学教育部复合材料重点实验室,天津300387

出　　处：《纺织科学与工程学报》2019年第2期56-61,共6页Journal of Textile Science & Engineering

基　　金：中国纺织工业联合会应用基础研究项目(J201805)

摘　　要：针对目前纱线动态性能评价仪器的进口设备价格昂贵,国产设备的纱线与仪器的摩擦阻力大且动态运行过程中的张力不稳定的问题,基于缠结法原理开发了一种新型纱线动态摩擦系数测量仪器,纱线运行速度和恒定预加张力可调,能实时测量和显示纱线的输入张力和输出张力以及纱线的动态摩擦系数,且系统简单、造价低廉。选用28 tex纯棉纱线、36 tex芳砜纶和420D涤纶进行五次重复性测试后,三种纱线其动态摩擦系数波动幅度低于0.01,仪器表现出良好的稳定性和可重复性。与CTT恒定张力传输系统的对比试验中,两种仪器测得的28 tex纯棉纱线的动态摩擦系数相同,且摩擦系数的变异系数分别为6.08%和3.92%,验证了该仪器具有较高的精确性。At present, the imported equipment which can conduct yarn dynamic performance evaluation is expensive, the friction resistance of domestic equipment is big, and the tension is unstable during dynamic operation. For the above-mentioned problems, a type of new yarn dynamic friction coefficient measurement instrument based on Entanglement method was developed with adjustable yarn speed and constant pre-tension. It could realize timing measurement and display the input curve, output curve and the dynamic friction coefficient of the yarn. The system was simple and cheap. After five reperformance tests with 28 tex pure cotton yarns, 36 tex PSF and 420D PET, the dynamic friction coefficient range among the three yarns was less than 0.01, and the instru-ment showed good stability and repeatability. Compared with the CTT constant tension transmission system, the friction coefficient of 28 tex pure cotton yarn measured by two instruments was same, and the friction coefficient CV was 6.08% and 3.92%, respectively, which proved that the instrument had better precision.

关 键 词：动态摩擦系数 变异系数 缠结法 罗德法 恒定张力传输系统 

分 类 号：TS103.6[轻工技术与工程—纺织工程]