The invention discloses a paper
packaging machine comprising a rack, wherein a
bottle conveying device, a
bottle allocating device, a
paperboard bin, a paper feeding device, a
bottle driving device, a side face folding device and a press box forming device are arranged on the rack; a pneumatic
constant pressure paper pushing device is installed at the
paperboard bin, the pneumatic
constant pressure paper pushing device comprises a paper pushing upright column, a paper pushing frame, a paper pushing transmission mechanism, a paper pushing slide block, a stop lever and a locking cylinder component; a bottle clamping prevention device is arranged on a bottle
moving frame, and the bottle clamping prevention device comprises a cylinder, a sliding seat, a slide rail and a chain guide block; a mechanical page taking device is arranged between the bottle driving device and the press box forming device; and the mechanical page taking device comprises a transmission mechanism, a connecting plate, a driving shaft, a front connecting rod, a connecting rod, a back connecting rod, a page taking frame and a page taking plate. By adoption of the structure of the paper
packaging machine disclosed by the invention, constant thrust can be provided for the
paperboard in the paperboard bin so as to ensure the paper feeding device to stably convey the paperboard.
Bottle explosion or overload damage of parts caused by bottle clamping in a bottle moving process can be avoided. High-speed page taking action can be realized.