Box separation device of continuous elevator

The utility model discloses a box separating device of a continuous elevator, and relates to the technical field of continuous elevators. The packaging box conveying device comprises an outer frame, two concentric-square-shaped conveying belts and a fixing bottom plate arranged on each concentric-square-shaped conveying belt, the top of each fixing bottom plate is connected with a carrying box with an upward opening through a limiting assembly, and two side clamping plates used for fixing packaging boxes are arranged in an inner cavity of each carrying box. A fastening mechanism used for driving the two side clamping plates to be close to or away from each other is arranged on the inner wall face of one side of the carrying box. A box placed on the carrying box can be clamped and fixed front and back through the arranged side clamping plates, the stability of the bottom of the box in the carrying process is guaranteed, the box is prevented from falling off due to vibration force generated when a machine opera