Offset printing and code spraying device for LED ultraviolet light source drying and curing

The utility model relates to the technical field of printing equipment, and provides an offset printing and code spraying device for LED ultraviolet light source drying and curing, a plurality of ultraviolet light source lamps are fixedly connected to the upper surface and the lower surface of the inner wall of a drying box correspondingly, an adjusting mechanism is arranged in the drying box and comprises a motor, and a threaded rod is fixedly connected to an output shaft of the motor; a threaded sleeve is movably connected to the outer surface of the threaded rod, a limiting rod is fixedly connected to the lower end of one side of the inner wall of the drying box, a limiting sleeve is slidably connected to the outer surface of the limiting rod, fixing plates are fixedly connected to the upper surfaces of the threaded sleeve and the limiting sleeve, and a fixing mechanism is arranged between the two fixing plates; according to the ink-jet printing machine, the irradiation area of the product and the ultravio