Ultraviolet irradiation device and printing device

An ultraviolet irradiation device used in a printing device configured to perform printing using an ultraviolet-curable ink on an outer peripheral surface of a print object that is a three-dimensional object, the ultraviolet irradiation device comprising:

• a rotating mechanism, configured to hold the print object and rotate the print object about an axis of the print object;
• an inclination adjustment mechanism, configured to adjust an inclination of the rotating mechanism with respect to a lower frame constituting a bottom surface of the ultraviolet irradiation device;
• a support frame, fixed to a rear end portion of the lower frame;
• and
• a position adjustment mechanism, configured to adjust a position of the rotating mechanism.

An ultraviolet irradiation device used in a printing device configured to perform printing using an ultraviolet-curable ink on an outer peripheral surface of a print object that is a three-dimensional object, the ultraviolet irradiation device comprising:

• a rotating mechanism, configured to hold the print object and rotate the print object about an axis of the print object;
• an ultraviolet irradiator, configured to irradiate the outer peripheral surface of the print object with an ultraviolet ray, wherein the ultraviolet irradiator is disposed on a side of the print object, and irradiates the outer peripheral surface of the print object with the ultraviolet ray from the side of the print object;
• a first detection mechanism, configured to detect that the print object is held by the rotating mechanism;
• and
• a second detection mechanism, configured to detect that a cover is mounted;
• wherein
• irradiation of the ultraviolet ray by the ultraviolet irradiator is enabled or not according to detection results of the first detection mechanism and the second detection mechanism.