摘要
为了探讨上销对成纱质量的影响,介绍上销在牵伸系统中的作用以及牵伸系统对上销工艺性能的要求;详细分析6833系列上销存在上胶圈运行阻力大、中部摩擦力界分布不合理、在前胶辊上有反包围弧等不足,对比6839系列和6839PLS型加长上销的工艺性能、技术优势及存在问题;通过纺纱案例说明6839和6839PLS型加长上销在改善成纱条干不匀率、粗细节、棉结等方面较有优势,并总结使用加长上销的注意事项。指出:通过对加长上销关键尺寸参数的优化设计,契合柔性牵伸理念,可有效提升纱线质量;使用时要注意各项工艺参数间的配合,避开临界牵伸工艺状态,以保证纺纱质量长期的稳定性和一致性。
In order to discuss the influence of the top cradle on yarn quality,the function of the top cradle in the drafting system and the technological properties requirements of the top cradle in the drafting system are introduced.The shortcomings of 6833 series top cradle,such as large running resistance of upper apron,unreasonable distribution of friction field in the middle and anti-enveloping arc on the front cot are analyzed in detail.The technological performance,technical advantages and existing problems of 6839 series and 6839PLS extended top cradle are compared.Through spinning cases,it is shown that 6839 and 6839PLS extended top cradle have advantages in improving yarn evenness irregularity,nubs and fine ends,neps and so on.The matters needing attention in using extended top cradle are summarized.It is pointed out that the yarn quality can be effectively improved by optimizing the key dimension parameters design of extended top cradle and conforming to the concept of flexible drafting.In using,the coordination of various process parameters should be paid attention to,and the critical drafting process state should be avoided,ensuring the long-term stability and consistency of spinning quality.
作者
王学元
WANG Xueyuan(Hangzhou Jingsha Information Technology Co.,Ltd.,Hangzhou 311203,China)
出处
《纺织器材》
2024年第S01期7-13,共7页
Textile Accessories
