Edge cutting device for integrally cutting corners of cards

The utility model discloses an edge cutting device for integrally cutting corners of cards, and belongs to the technical field of card cutting. A plurality of supporting frames are fixedly installed on the upper surface of the machine table, a fixing ring is fixedly installed on one surface of each supporting frame, a plurality of rotating grooves are formed in one surface of each fixing ring, a rotating plate is slidably connected to one surface of each rotating groove, a positioning plate is fixedly connected to one surface of each rotating plate, and a discharging groove is formed in one end of each positioning plate. One surface of the rotating plate is in threaded connection with a tool apron plate, one surface of the tool apron plate is fixedly connected with a connecting plate, the top end of the connecting plate is fixedly connected with a cutter, and the peripheral side face of the cutter is fixedly connected with a plurality of auxiliary cutters. Through the arrangement of the tool apron plate, the