The Assembly Line of a double-speed chain line is commonly referred to as: free flow conveyor system. The double-Speed Chain Conveyor systems are mainly used for the assembly and processing of the material in the production line. Its transmission principle is to use the speed-increasing function of the double-speed chain to support the goods. The pallet runs fast and stops at the corresponding operation position through the stopper; or through corresponding instructions to complete the accumulating action and the function of moving, transposing, and special line. Due to the repeated use of the platen used to transport the goods, it is rarely used on a single table. Instead, it is combined with various special machines such as a jacking translation machine and a jacking indexer to form a horizontal or vertical circulation system. It adopts special surface treatment extruded aluminum alloy profiles as guide rails, which makes Xinyang Lianguang self-flowing conveying system have very good stability and durability in the conveying process, and is suitable for large-volume continuous production of products. At the same time, the flexible and diversified design of the self-flow conveyor system makes it versatile.