Baby diaper production line high-speed buck stacker and stacking method

The invention relates to a device capable of stacking baby diapers at high speed and a method, which comprises a belt gripping mechanism, clamping bagging mechanisms, and a frame. A group ejecting mechanism I and a group ejecting mechanism II are located inside an arranging delivery mechanism, and the two clamping bagging mechanisms are located outside the arranging delivery mechanism and respectively match with the group ejecting mechanism I and the group ejecting mechanism II. The group ejecting mechanism I is composed of guide rails, an ejecting cylinder assembly and a motor drive assembly, the two guide rails are parallel located on the frame, the ejecting cylinder assembly is located on the two guide rails, the motor drive assembly is located between the two guide rails, and the motor drive assembly and the ejecting cylinder are connected can drive the ejecting cylinder assembly to move back and forth along the guide rails. The group ejecting mechanism II is formed by a cylinder assembly and located on the frame.