紧密纺断面结构布局的研究

针对紧密纺装置在FA506细纱机如何合理布局的问题,通过建立一个紧密纺断面结构的基本模型图来详细分析纺纱段长度、导纱角、罗拉包围弧、集聚区长度对纱线断头、须条的集聚效果、纺纱段的捻度传递和纺纱张力及强力的影响,并导出了合理断面工艺尺寸方程。最后利用MatLab数学工具,进一步给出了具有参考价值的合理断面工艺尺寸范围。结果表明:合理的导纱角和集聚区长度是一对主要矛盾,可以通过对集聚罗拉的定位尺寸和形状尺寸的优化来协调解决。

Research on cross-section layout of compact spinning

With a view to determining a reasonable layout of compact spinning on FA506 ring spinning frame,a basic model of cross-section position of compact spinning was developed to analyze the influences of the spinning length of roller nip to thread guide,inclination of roller nip to thread guide,the length of compact field and the wrap arc of roller on the yarn breakage,the fiber band effect of compact spinning,transmission of twist and spinning tension &;amp; strength.The equation of reasonable cross-section technologic dimensions was derived.Furthermore,the range of reasonable cross-section technologic dimensions which have great value for reference was presented using MatLab.The results showed that reasonable inclination of roller nip to thread guide and the length of compact field is a pair of main contradiction which can be solved in harmony by optimizing the orientation and shape dimension of compact roller.