抓管器使用问题探讨
2023-12-26 15:55:49   来源：   评论：0 点击：

  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
中图分类号：TS103.191            文献标志码：B            文章编号：1001-9634(2023)06-0025-05
 
收稿日期：2022-08-19；修回日期：2023-03-29
作者简介：毛  政（1991—），男，山西灵石人，助理工程师，主要从事纺织机械设计与制造方面的工作。
  Abstract: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 inden-ter to yarn tube are beneficial to increase the grip force of the bobbin grabber and improve the conversion rate of energy efficiency.
Key Words:collective doffing；bobbin grabber；seal sliding pad；diaphragm；air leakage；raised disk；grab horn；grip force
 
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