Large factory Tin can making machinery production line is being installed and used more and more. The quality of the assembly line is the first. However, the layout design of the assembly line is also a very important link. Let's take a look at the content of the layout design of the belt assembly line installation. The graphic design of the assembly line should ensure that the transportation route of the parts is the shortest, the production workers are convenient to operate, the auxiliary service department is convenient to work, the production area is most effectively used, and the mutual connection between the assembly line installation should be considered. In order to meet these requirements, the form of the assembly line and the arrangement method of the assembly line installation work site should be considered when the assembly line is laid out. The shapes of production lines and automatic lines are straight, right-angled, open, circular, etc. The arrangement of worksites during assembly line installation must conform to the process route. When the process has more than two worksites, the arrangement of worksites for the same process must be considered. Generally, when there are two or more even-numbered work sites of the same kind, it is necessary to consider adopting a double-row arrangement and list them in two cases of transportation routes. However, when a worker takes care of multiple devices, consider making the distance of the worker's movement as short as possible. The installation position of the assembly line involves the relationship between the assembly lines. It must be arranged according to the order required for assembly of the processing components. The overall layout must carefully consider the material flow, so as to shorten the route and reduce the transportation workload. In short, we must pay attention to the rational and scientific spatial organization of the flow production process.