Vacuum drum with panel being long hole

The utility model discloses a vacuum drum with a panel as a long hole, which relates to the technical field of RFID (radio frequency identification) label equipment manufacturing and comprises a vacuum drum component, a transmission motor is mounted on one side of the end of the vacuum drum component, the output end of the transmission motor is connected with a transmission shaft, and a vacuum suction disc is sleeved on the outer wall of the transmission shaft. A vacuum drum assembly is arranged on the side, away from the transmission motor, of the vacuum air suction disc. The vacuum drum assembly comprises three sets of main keel frames fixed to the outer wall of the transmission shaft. According to the utility model, the upper surface of the vacuum hole in the panel is changed into a long hole, and the lower surface of the vacuum hole is a round hole, so that a horn mouth shape is formed, the surface area of the hole is increased, the flow speed is increased, the pressure is reduced, strong negative pressur