工业平缝机挑线机构运动学分析和优化综合  

Kinematic Analysis for the Thread Taking-up Mechanism of Sewing Machine and the Optimum Synthesis

作　　者：叶志刚[1] 邹慧君[1] 胡松[1] 黄高义[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《上海交通大学学报》2003年第z1期6-9,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(59875058)

摘　　要：对连杆挑线机构进行了运动学分析,修正了以往分析中的错误.具体分析了挑线机构结构参数对收线角的影响,并给出了影响规律.提出理想挑线点轨迹所具有的综合特性,根据遗传算法,得出连杆挑线机构收线角最小的最优设计变量.经验证,其结果令人满意.Kinematic analysis was performed on the thread takingup mechanism of a sewing machine, and the mistakes existing in former analysis were modified correspondingly. The effects of structure parameters for the thread takingup mechanism on takeup angle were revealed. Synthesis properties of an ideal thread takingup path were presented. A genetic algorithm was used for the optimum synthesis of the thread takingup mechanism of sewing machine, and the minimum value of takeup angle is the optimal object function. The result which was verified is extremely satisfactory. 

关 键 词：挑线机构 挑线行程 收线角 遗传算法 运动循环图 

分 类 号：TH112[机械工程—机械设计及理论]