袜机收放针机构的动力学分析与研究

Dynamics Analysis and Research of Hosiery Machine's Needle Transfering Mechanism

为了提高袜机在袜跟、袜头高速编织时织针运动的稳定性,分析收放针过程中织针与挑揿针器的运动配合情况。运用ANSYS/LS-DYNA显性动力学分析程序模拟织针与挑、揿针杆之间的接触–碰撞,得到了挑揿针过程中织针的位移、速度、加速度随时间的变化曲线,能准确判断织针在挑揿针过程中的运动稳定性。

In order to improve the performance of the hosiery machine, the paper analyzes the situation between the needle and up or down-picker during the process of needle transfering in allusion to the needle movement stability when knitting the stocking heel and toe in high speed. ANSYS/LS-DYNA explicit dy- namics analysis procedure is adopted to simulate the contact-collision between the needle and up or down- picker bar, and displacement, velocity and acceleration curve changes over time of the needle are obtained which can accurately judge the motion stability of needle during the process of needle transfering.