Packaging bag ink-jet printer

The utility model relates to the technical field of packaging bag code spraying, and discloses a packaging bag code spraying machine which comprises a U-shaped frame, a connecting piece is arranged at the bottom end of the U-shaped frame, the connecting piece is movably connected with an external packaging bag conveying device, an adjusting piece is arranged in the U-shaped frame, a code spraying machine is arranged at the bottom end of the adjusting piece, and the adjusting piece is movably connected with the U-shaped frame. A limiting part is arranged at the top end of the adjusting part, the limiting part is movably connected with the interior of the U-shaped frame, movable holes are formed in the two ends of the inner side of the U-shaped frame, inner cavities of the movable holes are movably connected with the adjusting part, the adjusting part comprises a stepping motor, the stepping motor is fixedly connected with the U-shaped frame, and the limiting part is fixedly connected with the U-shaped frame. A