用于簇绒地毯织机的新型钩刀割绒机构

为解决多色提花钩刀割绒系统在移针时整个系统的横移问题，根据簇绒地毯割绒的形成原理，设计了一种新型的用于簇绒地毯织机上的钩刀割绒机构，能准确完成勾纱－ 脱纱工艺。根据这套钩刀割绒机构的机构简图，分成３个封闭多边形，对每个封闭多边形依据其矢量关系，建立矢量方程式，并利用欧拉公式简化方程，进行实部与虚部分离得到构件的位移；接着对相关方程式讨论其一阶导数、二阶导数分别得到构件的速度、加速度的数学求解式。通过这些求解式运用MatLab进行编程，计算所求量，得到各构件的运动规律，以及成圈钩的角位移、角速度和角加速度的变化曲线。

Novel cut pile mechanism on tufting carpet loom

According to the principle of cut pile,a new kind of cut pile mechanism on tufting carpet loom was proposed.Based on the vectorial relations,the mathematical model of the hook-knife cut pile mechanism was established,which was used to make the kinematic analysis.Using the software MATLAB,the displacement, velocity and acceleration of each component were obtained and the motion law was given, especially the change curve of the loop-hamulus about its the angular displacement, angular velocity and angular acceleration curve.The method is simple and accurate, which calculate quickly and have considerably practical significance in the design of the cut pile mechanism on tufting carpet loom.