Overturn device is the key device of automatic production line of ceramic backing. B nalysis of the research background, this paper elaborates the working principles of three alt ased erna on the a rive over turn devices of U type slideway, wheel spoke type and negative pressure adsorption type, and makes a comparative analysis of the scheme, and carries out a detailed scheme design of the optimal U type slide way overturn device, and introduces its structure composition, overall layout and process implementation. The beneficial effect of the scheme design of U type slideway overturn device is...