喷气织机打纬机构用共轭凸轮设计
2023-12-26 15:51:54   来源：   评论：0 点击：

  关键词：喷气织机；打纬机构；四连杆；六连杆；共轭凸轮；运动曲线；后死心静止角；高速宽幅
中图分类号：TS103.3            文献标志码：B            文章编号：1001-9634(2023)06-0033-05
 
收稿日期：2023-09-07
作者简介：高玉刚（1969—），男，山东聊城人，高级工程师，主要从事织机研发与制造方面的研究。
   
Abstract:In order to improve the weaving performance of air-jet loom，the existing problems of four-link beating-up mechanism，six-link beating-up mechanism and conjugating cam beating-up mechanism are analyzed，and a solution for conjugating cam beating-up mechanism which can meet the needs of different width and speed of air-jet loom is proposed.The shape and motion curve of conjugating cam are introduced，and its curve changes of displacement，velocity，acceleration and sharp jump (leap) are compared with those of four-link and six-link.Based on the analysis of the shortcomings of the large static angle cam with the rear dead center completely stationary and the large static angle cam with the active swing of the rear dead center，the imitation eight-link conjugating cam beating-up mechanism is designed.It is pointed out that the curve of the conjugating cam beating-up mechanism is smooth and without abrupt change，which can be used in high-speed narrow air-jet loom.With a relative static angle of about 200° at the rear dead center of the imitation eight-link conjugating cam beating-up mechanism，the acceleration and jump curve are smooth and close to the beating-up curve of the linkage mechanism，which can meet the weaving needs of high speed and wide width air-jet loom with more weft insertion time and greater beating-up force.
Key Words:air-jet loom；beating-up mechanism；four-link；six-link；conjugating cam；motion curve；static angle of rear dead center；high speed and wide width
 
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