Revolving drum type digital lens printing device

A drum-type lens digital inking device, characterized in that the inking device comprises a rotating drum unit, a lens height adjustment unit, invisible mark recognition unit and inking unit;

• wherein the rotating unit includes a rotating drum (7), and at least one lens holding mechanism is disposed on a circumferential surface of the rotation drum, wherein the lens holding mechanism comprises a damper telescopic shaft (10), and the damper telescopic shaft (10) is provided with a vacuum suction used to hold the lens (8);
• wherein the periphery of the rotating drum (7) is provided with a lens loading-unloading, workstation (1), a lens height adjusting workstation, an invisible mark identifying workstation (4), the inking workstation (5) circumferentially distributed around the drum (7);
• wherein the lens height adjustment unit is disposed at a lens height adjustment workstation, and the lens height adjustment workstation includes a lens pull-out workstation (2) and pushing-down lens workstation (3), the lens pull-out workstation (2) is provided with an outer pull drive mechanism and an outer pull connector 23);
• wherein the pushing-down lens workstation (3) is provided with a pushing plate (22) driving mechanism and a pushing plate (22), and the driving mechanism is by pneumatical, motor or magnet;
• wherein the invisible mark recognition unit is disposed at the invisible mark recognition workstation (4), including an illumination plate (11) and a camera (12);
• the illumination plate (11) and the camera (12) are respectively disposed on two sides of the lens (8), and the camera (12) is connected to the computer (16);
• and
• wherein the inking unit is disposed at inking workstation (5), including a print head (13) and a print head controller (14), the print head controller (14) communicating with a computer (16), the print head (13) is linked to print head controller (14), and the print head (13) is disposed in the lens (8) above.