Automatic cutting device and method for packing box ribbons

The invention relates to an automatic cutting device and method for packing box ribbons, in particular to an automatic cutting device and method for packing box ribbons in the tobacco industry. The automatic cutting device comprises a box body conveying unit, a box body jacking unit and a ribbon cutting unit, guide wheels on the two sides of the box body conveying unit adjust the position of a boxbody so that the box body can move forwards along the middle of the box body conveying unit, the box body jacking unit and the ribbon cutting unit are sequentially arranged in the advancing directionof the box body, and two cams of the box body jacking unit are arranged side by side and located in the center position of the box body conveying unit. According to the automatic cutting device and method for the packing box ribbons, two lower cover plates at the bottom of the box body can be jacked up in the box body running process, so that the middle of the box body is sunken, the ribbons areseparated from the box bott