The belt assembly line (conveyor) is mainly composed of a frame, a conveyor belt, a belt roller, a tensioning device, a transmission device, etc. There are various forms of belt conveyors, such as groove belt conveyors, flat belt conveyors, climbing belt conveyors, and turning belt conveyors. Accessories such as lifting baffles and skirts can also be added to the conveyor belt to meet various process requirements. The assembly line (conveyor) is equipped with workbenches on both sides and equipped with light frames, which can be used as a belt type assembly line for electronic instrument assembly, food packaging, and other applications.