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Conveyor transfer equipment is widely used in various assembly lines and other storage and transportation systems. Its function is to replace manual handling with powered mechanical transfer, moving the items being conveyed from one main double-screw conveyor to another conveyor located nearby. As a type of auxiliary equipment widely used, conveyor transfer devices are also constantly being improved and updated. This article introduces several structural designs for conveyor transfer devices to serve as a reference for system design. I hope it can help everyone. From the perspective of the structural design of conveyor transfer equipment and its relationship with double-chain conveyor systems, such equipment can be classified into standalone types and integrated types. Stand-alone transfer equipment refers to a device that is installed on a double-chain roller conveyor or as an additional unit near the conveyor; it features a simple design and low cost. There are three common types of such transfer equipment. ①Next to the roller conveyor, there is a pusher device that transfers items; it functions by using a reciprocating electric actuator (or cylinder, hydraulic cylinder) to push the items being transported, causing them to move away from the main conveyor and onto the adjacent branch conveyor. This push rod transfer device has a simple structure and is easy to use. Since it operates by pushing against the side of the object, the position of its equipment is determined by the direction of operation of the adjacent conveyor; it is usually placed alongside the main conveyor, requiring only a small amount of floor space. Its drawback is that it directly pushes the items from the side onto a conveyor that is at a 90-degree angle to the main conveyor. It is only suitable for items that need to make a right-angle turn, and it is not appropriate for fragile or delicate items. This transfer equipment is suitable for transporting items with various shapes and sizes or those with significant differences in weight. ②It is an overhead scraping type of transfer device for roller conveyors; its operating principle is similar to that of pusher-type transfer devices. The difference is that this type of device is located above the double-chain roller conveyor, and it is commonly referred to as an overhead scraper. Cylinders or hydraulic cylinders are used to move this device back and forth horizontally above the main conveyor, thereby using the scraper to move items away from the main conveyor. It can transfer the conveyed items from a random side to a nearby conveyor. This type of transfer equipment occupies only a small space above the main conveyor, without taking up any space on the ground. The scale of items it transports is the same as that of the aforementioned pusher-type transfer equipment. ③The drum conveyor arm-type transfer device is a simple mechanical configuration for transfer operations, with an arm that can rotate above the main conveyor. When in the transfer position, it is possible to block the items on the double-chain conveyor, causing them to change direction and move onto a nearby branch conveyor. It is also possible for the rotating arm to move out of the way of the path on the main conveyor, allowing the items being transported to remain on the main conveyor and continue moving forward. To reduce the frictional resistance caused by the rotating arm obstructing objects, guide rollers are generally installed on the contact side; the operation of the rotating arm can be done manually, but more often it is carried out with the help of cylinders or hydraulic cylinders. This transfer device ensures that the object does not change direction after being transferred to the nearby conveyor, which is very important in situations where the orientation of the object must be maintained. This type of roller conveyor transfer device is only suitable for items with well-guided sides.