磁悬浮式驱动织针的关键技术与试验模型

Key technologies of magnetic suspension driving knitting needles and experimental model

为解决传统织针机械编织效率过低,能耗较高的问题,基于提花圆机技术,提出新的磁悬浮式驱动织针原理。通过对磁悬浮驱动织针运动轨迹的分析及仿真,得出织针运动的位移、速度以及加速度曲线,并通过对系统建模,得到电磁、永磁织针之间的作用力关系。设计并完善驱动装置,以E24针织提花机为研究对象,验证磁悬浮驱动织针装置的编织效果。实验证明,基于新型磁悬浮方式织针编织,其编织效率比传统方式提高近15%左右,同时编织工艺和轨迹得到优化。

In order to solve the problems of traditional knitting machines on overlow weaving efficiency and relatively-high energy consumption,based on the technology of jacquard machines,the paper proposes a new principle of magnetic suspension driving knitting needles.Through the motion trace analysis and simulation of magnetic suspension driving knitting needles,the movement displacement,velocity and acceleration curves of the knitting needles are acquired,and through system modeling,force relationship between electromagnetic and permanent needles is built.A driving device is designed and improved,and based on an actual jacquard machine E24,the weaving performance of the magnetic suspension driving needle device is verified.Experiments proved that the needle model based on the new magnetic suspension driving,has the weaving efficiency improved nearly by 15％,at the same time,the knitting technology and trajectory are optimized.