An assembly line is a machinery that continuously transports goods on a certain route. According to the conveying series of products, it can be roughly divided into seven types of assembly lines: belt assembly line, plate chain line, multiple chain line, plug-in line, mesh belt line, suspension line, and drum assembly line. It generally includes traction components, load-bearing components, driving devices, tensioning devices, steering devices, and supporting components. Conveyors can be used for horizontal, inclined, and vertical conveying, and can also form spatial conveying routes, which are generally fixed. The assembly line has a large conveying capacity, long transportation distance, and can also complete several process operations simultaneously during the conveying process, so it is widely used.