RFID printer with consumable shaking prevention mechanism

The utility model discloses an RFID printer with a consumable shaking prevention mechanism, which comprises a bottom plate, one side of the top of the bottom plate is provided with an RFID printer body through a bolt, one end of the top of the RFID printer body is welded with a vertical plate, the top of one end of the vertical plate is provided with a fixing shaft through a screw, and the end part of the fixing shaft close to the vertical plate is sleeved with a positioning ring. A moving ring is mounted at the end, away from the vertical plate, of the fixing shaft through threads, a limiting groove is formed in the surface, opposite to the positioning ring, of the moving ring, a spring is welded in the limiting groove, and a limiting block is welded to the free end of the spring. According to the RFID printer with the consumable shaking prevention mechanism, after the paper roll is sleeved outside the fixed shaft, one end of the paper roll can be in contact with the positioning ring, and after the movable r