Anilox roller cleaning machine by laser and procedure for auto-adjusting the laser focal point to the diameter of the anilox roller

An anilox laser cleaning machine, of the type that incorporate a mechanical structure where an anilox roller rotates on its longitudinal axis, in a bed formed by two traction rollers, some free rollers and a horizontal sliding carriage that runs parallel to the roller anilox, the anilox laser cleaning machine comprising:

• A multi-laser head (4) with two or more laser modules (5) mounted on a horizontal guide (6) of a first movable support (7) which is associated with the horizontal sliding carriage (8) with the intermediation of some brackets (9) coupled to vertical micrometric axes (10) associated with the horizontal sliding carriage (8) and actioned by servomotors (11) operatively connected to the electronic system of the machine (22), each laser module (5) being constituted by:
• A laser resonator (14) that emits a laser beam (15) whose focal point (16) is located in the vertical plane equidistant to the axes of rotation of the traction rollers (3) of the anilox roller (2).
• A vertical tube (17) terminated in a nozzle (18) oriented towards the focal point (16) of the laser beam, connected to a flexible hose (19) which, at its distal end, is connected to a suction system.
• A means for detecting rotation of the anilox roll constituted by a palpate wheel (28) in contact with the surface of the anilox roller (2) and associated with an encoder device (21) operatively connected to the electronic system of the machine (22) that, in the absence of movement detection or irregular movement, actives the emergency stop (23).