预捻环锭纺的预捻原理及其实验研究  

Pre-twisting Theory and Experimental Research of Pre-twisting Ring Spun Technology

作　　者：陈澄[1] 王克毅[1] 华志宏[2] 韩丹 程隆棣[1] 

机构地区：[1]东华大学纺织面料技术教育部重点实验室,上海201620 [2]东华大学理学院,上海201620 [3]经纬纺织机械股份有限公司榆次分公司,山西晋中030601

出　　处：《东华大学学报（自然科学版）》2015年第5期602-607,共6页Journal of Donghua University(Natural Science)

基　　金：长江学者和创新团队发展计划资助项目(IRT1220)

摘　　要：为验证预捻环锭纺预捻机理的合理性,建立纤维微元段在气流场中的动力学模型,计算得到单纤维运动轨迹,并设计相关实验方案,采用显微镜法观察预捻须条及成纱表面结构.研究表明:单纤维轨迹模拟能形象地反映预捻环锭纺预捻区纤维的运动形态,预期的预捻原理是可行的;预捻区中须条的外层单纤维以螺旋轨迹包缠在中心须条表面.In order to prove the rationality of twisting theory of the pre-twisting ring spinning,a dynamic model of infinitesimal element of fiber in the airflow filed was established to obtain the trajectory of fiber.The structure of the pre-twisting strand and the pre-twisting spun yarn under the microscope was observed.The research results indicate that the simulation of fiber trajectory is able to reflect the fiber motion morphology in the pre-twisting field of the pre-twsiting ring spinning;expected twisting theory is rational.The fibers at the outer layer of the strand are wrapped in a spiral on the core strand in the pretwisting field.

关 键 词：预捻环锭纺 预捻器 纱线结构 数值模拟 纤维运动学 

分 类 号：TS104.1[轻工技术与工程—纺织工程]