Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J25/00—Actions or mechanisms not otherwise provided for
  • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J25/316—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
  • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
  • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
  • B28B11/048—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers by spraying or projecting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/0082—Digital printing on bodies of particular shapes
  • B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing

Definitions

• the present invention relates to a device and a method for ink-jet printing on surfaces exhibiting reliefs or recesses, in particular on surfaces to be decorated having at least a tract exhibiting a transversal tract with a geometric arc shape, substantially an arc of circumference, ellipse or parabola.
• Ink-jet devices have been applied for some time, including in the sector of ceramic tiles, which comprise one or more printing heads; these heads are formed by a plurality of nozzles, located along at least a line, typically a straight line, which nozzles issue controlled jets of micro-drops of ink, collected from a well or a cartridge.
• the printing head is commanded by an electronic processor which imparts a succession of printing commands to the various nozzles, according to the image to be obtained and the relative position between the head and the surface to be printed on, either activating or leaving the nozzles inactive.
• This technical problem is obviated by the device and the ink-jet printing method according to the appended claims.
• figure 1 is a schematic section of the surface to be printed on and the printing heads, in a vertical and transversal plane (perpendicular to the direction A of the reciprocal displacement between the surface and the device);
• 10 denotes in its entirety a surface to be printed on, for example a tile B, on which the printing device of the invention acts.
• the length of the lines of action 26 of the heads is not used completely, in order to prevent superposing between the nozzles in the end tracts of the heads.
• the method comprises arranging each head 21 , 22, 23 with an inclination such that, in at least one of the heads the distances between the ejector nozzles 25 from the points of surface 10 struck thereby are different: in other words, the length of the ink jets 27 are different from the head; further, the respective line of action 26 is orientated, in the transversal vertical plane (as illustrated in figure 1 ), in a way which is more or less parallel to the mean inclination line (R22, R23), with respect to the horizontal plane, of the profile that is transversal to the portion of surface 10 subjected to the strip of action F21 , F22, F23 of the head 21 , 22, 23 itself.
• the line of action 26 of the head 21 is arranged with a zero angle of inclination as the respect strip of action F21 operates on a portion of surface (zone 1 1 ) the profile of which in the transversal plane is horizontal or more or less horizontal;
• the heads 21 , 22, 23 are fixed to the plate 30 at openings in the plate 30 which enable the heads to exhibit the nozzles 25 thereof on the lower surface of the plate 30, facing downwards.
• the heads 21 of the four groups G are aligned with one another in a longitudinal direction (parallel to direction A) and are fixed to a portion 31 of plate 30, which is fixed.
• portion 33 of plate the inclination of which can be varied to arrange the four heads 23, located on the same portion 33 of plate 33, each having an inclination which is such as to respect the above-cited criterion in relation to the head 22.
• the movement of the surface 10 with respect to the device 20 is such as to bring each transversal section of surface below the action of each group G of heads 21 , 22, 23 in succession.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Ink Jet (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Coating Apparatus (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (2)

Family

ID=42338241

Family Applications (1)

Country Status (8)

Cited By (3)

Families Citing this family (5)

Family Cites Families (5)

• 2010
  • 2010-02-02 IT ITRE2010A000006A patent/IT1398100B1/it active
  • 2010-06-09 SM SM201000074A patent/SM201000074B/xx unknown
• 2011
  • 2011-02-01 EP EP11709803.8A patent/EP2424733B1/en active Active
  • 2011-02-01 CN CN201180002257.5A patent/CN102481792B8/zh not_active Expired - Fee Related
  • 2011-02-01 ES ES11709803T patent/ES2881532T3/es active Active
  • 2011-02-01 WO PCT/IB2011/000155 patent/WO2011095865A2/en active Application Filing
  • 2011-02-01 BR BRPI1105240-6A patent/BRPI1105240B1/pt not_active IP Right Cessation
• 2012
  • 2012-11-05 HK HK12111106.4A patent/HK1170199A1/zh not_active IP Right Cessation

Non-Patent Citations (1)

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