Analysis And Research On The Scraping Ink Institutions Of The Printing Equipment Of Silicon Solar Cells

Silicon solar cell is a semiconductor electron device, which can effectively absorb solarradiation and convert it into electrical energy, widely used in all kinds of lighting andpower-generation system. Screen printing is an important process of silicon solar cellproduction and its printing quality (thickness, width, accuracy, shape, etc) influence siliconsolar cell technology indicators. Scraping ink institutions is one of the key mechanisms of theprinting equipment of silicon solar cell and its quality and stability have direct impact on theprinting quality. The thesis mainly analyzes the mechanical performance of the scraping inkinstitutions and conducts the optimize design about the structure. The aim is to achieving thepurpose of lightening the weight and reducing vibration.The thesis takes the scraping ink institutions of the printing equipment of silicon solarcells as the study object, and uses Pro/E software to establish three-dimensional entities modelof the structure. Solid45entity element is selected to mesh the simplified structure. Carried onthe static analysis and the modal analysis with the finite element analysis software ANSYS,the stress contours and the modes figure are gained. On this basis, the weaknesses of thescraping ink institutions are obtained and it provides foundation for the optimize design of thestructure. Then, simplify the mechanism model, and establish the elastic dynamic equation ofthe sliding shaft of scraping ink institutions with finite element principle, KED method andLagrange equation. Through the computing examples, the elastic deformation of the slidingshaft of scraping ink institutions is gained.In order to solve the problem of the long time of project structure analysis, the thesisapplies the combination of test design and approximate model to decrease the optimizationscale and shorten the optimization time. Firstly, select seven factors and use orthogonal test tosimulate the scraping ink institutions. Secondly, factors affecting degree to structural weight,the first natural frequency, maximum stress and maximum displacement are evaluated byvisual analysis method and variance analysis method. Furthermore, conduct the multipleregression analysis with the relationship between structural weight, the first natural frequency,maximum stress, maximum displacement and their respecive significant factors, and draw therespective mathematical expressions. Finally, with lightening weight and reducing vibration as the goal, the optimum design model of the the scraping ink institutions is established, andthe resonable design project is achieved.The resrarch method can provide a reference for the engineering application, and offer athinking fashion for structural optimum design.