Intelligent stacking and unstacking device

The invention discloses an intelligent stacking and unstacking device. The intelligent stacking and unstacking device comprises a cabinet body; a door opening penetrates through the middle part of the cabinet body front and back; a conveying line for conveying turnover boxes penetrates through the door opening; stacking and unstacking mechanisms are arranged on the two sides in the door opening correspondingly. The stacking and unstacking mechanism comprises two vertical guide rails arranged in parallel in a spaced mode, an upper sliding base and a lower sliding base, wherein the upper sliding base and the lower sliding base can ascend and descend along the two vertical guide rails. The upper sliding base is driven by a first hydraulic telescopic rod to ascend and descend. A rotatable threaded rod is connected between the lower sliding seat and the upper sliding seat so as to automatically adjust the distance between the lower sliding seat and the upper sliding seat; the upper sliding seat is provided with a