Novel reamer device used for printing machine

The utility model provides a novel reamer device used for a printing machine. The novel reamer device comprises a base, a clamping block, a blade and a cam threaded rod. The blade is fixed to the clamping block which is embedded in the base. A through hole is formed in the axial direction of the base. The cam threaded rod penetrates through the through hole. A reamer can be vertically adjusted through a cam so that the gap can be adjusted and the safety of people can be protected when machines break down, labor can be reduced, the novel reamer is smooth in notch, the problems of incomplete cutting, adhesion and the production of paper scraps are solved, the manual machining areas and places are reduced, the work efficiency can be improved, the paperboard cutting efficiency of a conventional blade is 120 pieces per person per hour, and the paperboard cutting efficiency can be improved to 600 pieces per person per hour through the novel reamer.