Abstract

Vietnam is one of the major paddy producers in the world in which rice processing to pass international quality standards is one of the huge problems that need to be solved. One of these problems is how to separate the different colored rice during the processing that plays an important role in improving the quality of rice for export. Therefore, the “Rice color separation machine” is important equipment of the rice harvested processing line. During the study to solve these problems at the LAMICO Company, a big company in the field of rice processing in Vietnam, we have designed, tested, and manufactured a machine for rice color separating by using the camera successfully. This device helps classify finished rice and whereby the export value of Vietnam rice also increases. After checking and experimental investigation the working of the machine directly in some rice processing factories in the Mekong River Delta, the results indicate that the machine works very efficiency and separate all different color rice mix in the processing line. This paper presents the mechanical design solutions for the adjust slide and spraying equipment position structural of the rice color separation machines. Slides, spraying equipment, and feeder are main structures in the mechanical cluster of the rice color separation machine, and their relative positions are important parameters in deciding the accuracy and response-ability of the spraying equipment as well as identifying rice lines of the cameras. This paper proposes the design calculation determining parameters of the relative distance for a standard working mode and make the gap adjustment mechanism for the color rice separator machine can best respond the part of the image recognition camera control.