探讨利用AFIS测试仪减少成纱棉结的方法.介绍了棉结的定义以及半制品中棉结和纱线棉结的关系；分析了棉结形成的原因,利用AFIS测试仪精确测量了不同速度、隔距和打手处棉结变化,进行工艺参数优选,逐步减少了成纱棉结.介绍了利用AFIS测试仪维护和保养梳棉和精梳等工序的专件以及判断器材使用寿命的方法.认为:纺纱是一个系统工程,用系统的理论管理生产线才能较好地提高产品质量.%Methods of reducing yarn neps by AFIS were discussed. Definition of neps was introduced as well as relationship between semi product neps and yarn neps. Causes of neps were analyzed. Fiber nep changes in beaters were tested precisely by AFIS when speed and gauges were different. Processing parameter was optimized and neps were reduced gradually. Methods of using AFIS to maintain special parts in carding and combing process were introduced as well as judgment of auxiliary use life. It is considered that spinning is one system project, product quality can be improved well by system theory to manage production line.
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