抓管器使用问题探讨  

Discussion on the Using Problem of Bobbin Grabber

作　　者：毛政 边文广 MAO Zheng;BIAN Wenguang(Jingwei Intelligent Textile Machinery Co.,Ltd.,Jinzhong 030601,China)

机构地区：[1]经纬智能纺织机械有限公司,山西晋中030601

出　　处：《纺织器材》2023年第6期25-29,共5页Textile Accessories

摘　　要：为了保证细纱机集落系统可靠、高效插拔纱管,介绍集落装置用抓管器功能、结构型式及工作原理,分析活塞式抓管器和气囊式抓管器的失效形式,详述二者使用密封滑动垫的工作原理、破损机理及影响其可靠性的因素和提升措施;计算活塞式抓管器的握持力,从能效转换角度说明增加抓管器握持力的方法,并提出改进方向。指出:密封滑动垫或气囊疲劳破损产生漏气是抓管器失效的主要原因,集落装置的凸盘型式和纺纱工艺对滑动密封垫可靠性有影响;密封滑动垫漏气影响集落装置动作的正确性,应在设计、生产加工及使用等全过程采取措施提高其性能;为活塞式抓管器增设类似波纹管的轴向可伸缩结构,使密封滑动垫膜片获得较大的轴向伸缩量,延长使用寿命;使用软质压头和抓管喇叭调节块,改进纱管头部结构和压头结构等措施有利于增大抓管器握持力和提高能效转化率。In order to ensure the reliability and high efficiency of inserting and pulling yarn tubes in the collective doffing system of spinning frame,the function,structure type and working principle of the bobbin grabber used in the collective doffing device are introduced,and the failure forms of piston bobbin grabber and air bag bobbin grabber are analyzed.The working principle and damage mechanism of seal sliding pad used in piston bobbin grabber and air bag bobbin grabber,as well as the factors affecting its reliability and improving measures are described in detail.The grip force of the piston bobbin grabber is calculated,the method of increasing the grip force of the bobbin grabber is explained from the factor of energy efficiency conversion,and the direction of improvement is proposed.It is pointed out that air leakage caused by fatigue damage of seal sliding pad or air bag is the main reason for failure of bobbin grabber.The raised disk type and spinning process of the collective doffing device have influence on the reliability of the seal sliding pad.The air leakage of the seal sliding pad affects the correctness of the movement of the collective doffing device,so measures should be taken to improve the performance of seal sliding pad in the whole process of design,production and use.An axial scalable structure similar to bellows is added to the piston bobbin grabber,so that the diaphragm of the seal sliding pad can obtain a larger axial expansion and extend the service life.Using the soft indenter and the adjusting block of the grab horn,improving the structure of the head and the indenter to yarn tube are beneficial to increase the grip force of the bobbin grabber and improve the conversion rate of energy efficiency.

关 键 词：集落 抓管器 密封滑动垫 膜片 漏气 凸盘 抓管喇叭 握持力 

分 类 号：TS103.191[轻工技术与工程—纺织工程]