Slitting device

The utility model provides a slitting device which is additionally arranged at the tail end of an automatic tipping paper lap joint mechanism and comprises a base plate, a slitting assembly, a driving assembly and a tensioning assembly, and the slitting assembly, the driving assembly and the tensioning assembly are integrally arranged on the base plate. According to the device, the cutting assembly and the positioning assembly abut against each other so that tipping paper can be cut, the driving assembly is used for finely adjusting the distance between the cutting assembly and the positioning assembly, a protection cover is arranged on a cutting piece of the cutting assembly, and the tensioning assembly is arranged and used for tensioning the tipping paper. The device can automatically conduct slitting operation, the distance between the cutting assembly and the positioning assembly can be finely adjusted through the driving assembly, the tensioning assembly exerts pulling force on tipping paper, so that the