| In recent years,people have higher and higher requirements on yarn quality,which requires the fiber to achieve the best carding process as far as possible.Traditionally,a large number of needle tooth configuration changes are carried out to get the best results of yarn carding.But traditional experiments need not only a lot of manpower and material resources,but also a long time.Finite element analysis technology has the advantages of short time,high efficiency,accurate results and reappearance of the analysis process.It has been gradually applied in the field of spinning.The use of finite element analysis technology can make the invisible part of the spinning process(main carding area)clearly displayed on the computer,which has a good reference for the selection of needle fabric in the main carding area.And the visualization of the main carding area of the carding machine is realized,which is of great significance to improve the production and quality of the carding machine.To solve the above problems,this paper uses Ug,Hype mesh and Abaqus software to model the tin forest,cover plate and fiber in the main carding area of cotton spinning carding machine,and displays the dynamics to simulate and analyze the three.Using Ug software to conduct three-dimensional modeling of the main carding area,respectively establish the tin forest needle fabric,cover needle fabric and fiber models.On the basis of Hyper Mesh software,the main carding area of the card machine is divided into mesh division mechanism.According to different components and relative emphasis of the main partition,the mesh division is classified.The Abaqus display dynamics module was used to simulate the working state of the main carding area.The movement of fibers in the main carding area was simulated by the change of the Angle of the pinhead teeth of the tin Lin and the cover plate.The change of fiber model after carding under different needle tooth angles was obtained,and the change of fiber projection length was calculated.In order to achieve high yield carding,the needle fabric configuration and selection will affect the carding quality.By simulating the change of the density collocation of the tin forest and the cover plate,3 kinds of fiber amount and 4 kinds of needle fabric collocation schemes(dense collocation,dense collocation,thin collocation,thin collocation)are used to simulate the effect of different collocation of fibers in the carding process of the main carding area.The practicability of simulation effect is ensured.This topic is based on Abaqus and other analysis software,for the production practice according to the different types and characteristics of the fiber,select a reasonable working Angle and density of the tin forest and the cover pin teeth,to achieve the fiber in the main carding area of the full release and transfer,play a good reference role. |
