| 主权项 |
1. An apparatus (1) for the surface treatment of objects (2), each comprising at least a lateral surface (2a) and a base surface (2b) that are differently oriented relative to each other, wherein at least said lateral surface (2a) extends around an axis of extension (2c) of said object (2),
said apparatus comprising: a drum (3) suitable for rotating around a central axis (A); a plurality of gripping elements (4) disposed on said drum (3) and configured to each receive and retain a respective object (2) to be treated; printing means (5) operatively associated with said drum (3) and comprising at least one print head (6, 6a, 6b), said print head (6, 6a, 6b) being positionable in front of said gripping elements (4) at a printing station (17, 17a, 17b) in order to print a specific motif on the lateral surface (2a) and/or on the base surface (2b) of an object (2) associated with a respective gripping element (4); drive means configured to generate a relative motion between said object (2) associated with the respective gripping element (4) and said at least one print head (6, 6a, 6b) during printing on said lateral surface (2a) and/or said base surface (2b) of an object (2), a control unit (7) operatively connected to said printing means (5) and/or said drive means, said control unit (7) being programmed to control, on the same drum (3), both printing on the lateral surface (2a) and the base surface (2b) of said objects (2), wherein said gripping elements (4) comprise a plurality of horizontal gripping elements (4a) which are radially disposed relative to said drum (3) and evenly distributed around said central axis (A) with a constant angular pitch equal to a first angle (α) and an identical plurality of vertical gripping elements (4b) evenly distributed around said central axis (A) and alternating with said horizontal gripping elements (4a), preferably at a distance equal to half of said first angle (α). |
