Packaging device for jellyfish storage tank

The utility model discloses a jellyfish storage tank packaging device which comprises a machine body, a conveying mechanism, a clamping mechanism, a lifting arm, a supporting plate, a rotating motor, a rotating shaft, a laser generator, a laser welding head, a diameter adjusting mechanism and an infrared sensor, and is characterized in that the diameter adjusting mechanism comprises an adjusting plate, a control block, a screw rod, a sliding block and a connecting block; the adjusting plate is fixedly connected with the laser generator, a sliding groove is formed in the side wall of the adjusting plate, a control block groove is formed in the bottom of the sliding groove, the control block is arranged in the control block groove, a threaded hole is formed in the side wall of the control block groove, the screw is in threaded connection with the threaded hole and rotationally connected with the control block, a knob is fixedly connected to one end of the screw, and a tooth groove is formed in the bottom of the