自捻纱线纺纱过程力学模型的建立  

Mechanical model establishment of self-twist yarn spinning process

作　　者：崔红[1] 高秀丽[2] 陆振乾[1] 吕立斌[1] 

机构地区：[1]盐城工学院纺织服装学院,江苏盐城224000 [2]河南工程学院纺织学院,河南郑州450007

出　　处：《毛纺科技》2016年第4期15-18,共4页Wool Textile Journal

基　　金：国家自然科学基金青年基金(11502230)

摘　　要：自捻纺纱过程的不稳定性造成自捻纱线的弱捻区较大,使得自捻纱线强力较低,限制了它的应用范围。针对此问题,运用流体力学中的质量守恒定律和动量守恒定律建立自捻纺纱过程的力学模型。通过该模型的建立,可以得到影响自捻形成的纺纱过程的各个因素,对提高自捻纺纱的成纱质量意义重大。从自捻纺纱过程的力学模型可以看出,自捻纱线汇合点的运动曲线由喂入的2根纱条和输出自捻纱线的线密度和速度决定。实验证实了汇合点的运动轨迹的理论曲线和实际曲线有很好的一致性。该研究方法为自捻纺纱过程的动态研究和优化自捻纺纱过程的参数提供了一条很好的途径。The instability of the self- twist spinning process caused the weak twist area of the self-twist yarn,which makes the self- twist yarn strength is lower,and it limits its application scope. Aiming at this problem,a mechanical model is established for self-twist spinning process by applying the laws of fluid mechanics（ mass conservation and momentum conservation）. Through the establishment of this model,it can be obtained that the influence of the various factors in the process of the self twist,which is of great significance to the improvement of the yarn quality. From the mechanical model of the self- twist spinning,the motion curve of the convergent point is determined and the convergence point is decided by the densities and velocities of, respectively, two fed-in strands and the produced self-twist yarn,independent of their mechanical properties. The experimental verification has proved that the motion trajectory of convergence point reaches a better agreement with the theoretical trajectory. The presented results provide a general way to study self-twist yarn spinning process and optimize the process parameters.

关 键 词：纱条 自捻纱 运动轨迹 流体力学 

分 类 号：TS104[轻工技术与工程—纺织工程]