Stacking and destacking packaging line

The invention relates to a stacking and destacking packaging line. The stacking and destacking packaging line comprises a conveying device and a packaging device. A gantry crane is arranged between the conveying device and the packaging device. The conveying device is sequentially provided with a chain plate conveyor, a bottle tidying vehicle, a bottle moving machine and a lifting table. The packaging device is sequentially provided with a plate grabbing machine, a stack protecting machine, a packaging unit and a conveyor unit. The gantry crane is provided with a bottle gripper. Non-rotation conveyors are arranged on the two sides of the gantry crane. By means of the conveying device, the gantry crane and the packaging device, the occupied area is small, the defect that a high-bed stacking assembly line cannot meet the field requirement is overcome, and the problems that a mechanical arm stacking assembly line is too high in cost and not convenient to maintain are solved. Meanwhile, the whole assembly line ca