Tooth cutting device of plate toothing machine

The utility model provides a tooth cutting device of a plate tooth connecting machine, which comprises a rack, a fixed shear knife with a tooth-shaped blade is arranged below the rack, a hydraulic cylinder is arranged above the rack along the transverse direction, a rocker is rotatably arranged on a piston rod of the hydraulic cylinder, the other end of the rocker is rotatably connected to a knife rest, and the other end of the rocker is rotatably connected to the knife rest. A movable shearing knife which is provided with a tooth-shaped cutting edge and is matched with the fixed cutting knife is arranged at the bottom of the knife rest, a guide column is arranged on the rack in the longitudinal direction, and the knife rest is arranged on the guide column in a sliding and sleeving mode; according to the tooth cutting device provided by the utility model, the rocker and the guide post are matched with each other, and the transverse movement of the knife rest is converted into vertical movement, so that the mo