用于簇绒地毯织机的新型钩刀割绒机构  

Novel cut pile mechanism on tufting carpet loom

作　　者：罗娟[1] 郗欣甫 孙以泽[1] 

机构地区：[1]东华大学机械工程学院,上海201620

出　　处：《纺织学报》2016年第6期118-123,共6页Journal of Textile Research

基　　金：国家自然科学基金项目(51375084);教育部创新团队发展计划项目(IRT1220)

摘　　要：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Mat Lab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。To solve the problem of whole mechanism shogging of cut pile mechanism system on multicolor jacquard weaving, according to the principle of cut pile on tufted carpet, a novel cut pile mechanism on tufting carpet loom was proposed,which could accurately complete the processes of snagging and sloughing. By analyzing the kinetic characteristics of cut pile mechanism,according to schematic diagram of cut pile mechanism,it was divided into three closedi-polygons,and for each closedi-polygon,vector equation was obtained on the basis of vector relations. And using Euler formula,reduced equation,separated real part and imaginary part of equation,displacement of component was obtained. Then for the equation,the first and order derivatives were discussed and mathematical formulas about velocity and angular acceleration of component were obtained. Using the software Mat Lab,on the basis of solving equations,desired value was calculated and the motion law was given,especially the change curve of the loopi-hamulus about its the angular displacement,angular velocity and angular acceleration curve.

关 键 词：钩刀割绒机构 运动规律 数学模型 变化曲线 

分 类 号：TH112.1[机械工程—机械设计及理论]