环锭细纱机牵伸机构应用压力棒的回顾与探讨——兼析压力棒的多种定位方式  

Review of and Approach into the Application of the Press Bar on the Draft Mechanism of the Ring Frame——concurrently analysis of the position mode of the press bar

作　　者：刘全新 刘宁[1,2] 宁焕英 

机构地区：[1]山东聊城全新纺织科技咨服中心,山东莘县252400 [2]沈阳理工大学研究生院,沈阳110159

出　　处：《纺织器材》2014年第3期47-56,共10页Textile Accessories

摘　　要：针对在现代棉纺环锭细纱机上压力棒的应用现状,进行了简明扼要的历史回顾和由浅入深的分析探讨。由于并条机(乃至粗纱机)前区和细纱机前、后区都在使用压力棒,对直接影响压力棒性能的各种支撑定位方式的特点进行了分析并进行了纺纱对比试验。指出:前、后区压力棒的使用都是通过借助补充、完善摩擦力场、加强对纤维运动的控制来提高成纱质量,其中稳固、精确是下销带压力棒的基本特点,是今后重要的发展方向;强调灵活使用压力棒对赛络纺纱质量的提高主要集中在降低条干CV值、减少IPI纱疵(特别是粗节、棉结)、减少3mm及以上长毛羽,也提升了强伸性能。附加压力棒的应用,虽然对成纱质量的改善不及改造的集聚纺,但较高的性价比使其不失为投资少、质量好、见效快的一种技术措施,应该优先选择使用。As to the status quo of the application of press bar on the modern frame of cotton spinning,brief review is done with the gradual analysis.As the application of the press bar in the front area of the draw frame or roving frame and in the front and the rear area of the spinning frame,analysis is done to the position modes which impacts directly the performance of the press bar,and more spinning test is done.It is pointed out that only by application of the press bars both in the front area and the rear area with correct friction field and good control of fiber can spinning quality be improved.The future will be oriented with stable and precise bottom apron with press bar.Flexibile application of press bar in the quality improvement of compact spun yarn mainly lies in reduction of unevenness CV,IPI（including slubs and snicks）and hairiness over 3mm,with the performance reinforcement.Although the application of the attachable press bar is inferior from the modified compact spinng process in yarn improvement,the higher performance-and-price ratio makes it a technical approach with small investment,good quality and instant efficiency,thus selection of the same needed with first priority.

关 键 词：环锭细纱机 牵伸型式 上销 下销 压力棒:定位 牵伸区 摩擦力场 

分 类 号：TS103.114[轻工技术与工程—纺织工程]