EP2424733B1 - A device and method for ink-jet printing on surfaces exhibiting reliefs or recesses - Google Patents

A device and method for ink-jet printing on surfaces exhibiting reliefs or recesses Download PDF

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Publication number
EP2424733B1
EP2424733B1 EP11709803.8A EP11709803A EP2424733B1 EP 2424733 B1 EP2424733 B1 EP 2424733B1 EP 11709803 A EP11709803 A EP 11709803A EP 2424733 B1 EP2424733 B1 EP 2424733B1
Authority
EP
European Patent Office
Prior art keywords
printing
heads
nozzles
head
transversal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11709803.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2424733A2 (en
Inventor
Vincenzo Palumbo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Projecta Engineering SRL
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Projecta Engineering SRL
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Publication date
Application filed by Projecta Engineering SRL filed Critical Projecta Engineering SRL
Publication of EP2424733A2 publication Critical patent/EP2424733A2/en
Application granted granted Critical
Publication of EP2424733B1 publication Critical patent/EP2424733B1/en
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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 ceramic tiles 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.
  • the invention is typically applicable in decoration of in-view surfaces which exhibit reliefs or recesses which may even be of considerable thickness or depth.
  • 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.
  • Document US2007095218 discloses such an ink-jet device.
  • 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.
  • the heads each exhibit at least a series of nozzles which are aligned according to a line of action and the surface to be printed on is translated below the printing heads, for example by placing the surface on a conveyor belt, where it has a lie that is perpendicular to the direction of the jets, while it advances along a transversal direction with respect to the alignment direction of the nozzles, staying within the lie plane; the surface to be printed on passes entirely into the field of action of the nozzles such that the printing device can print on the whole useful surface.
  • the method of the invention is for printing on surfaces 10 of tiles with reliefs or recesses.
  • the invention is typically for decorating the in-view surface of ceramic tiles known as structured, i.e. provided with recesses or reliefs, having at least a tract with a transversal profile in a geometric arc, preferably an arc of circumference, ellipse or parabola.
  • 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 illustrated surface 10 exhibits, in the transversal section, as represented in figure 1 , a first end point 10a and a second end point 10b: the surface to be printed is the surface delimited between the points 10a and 10b.
  • the surface comprises a substantially flat zone 11 and a relief zone 12, the transversal section of which exhibits a geometric arc; between the flat zone 11 and the relief zone 12 there is a concave zone, with respect to a straight line (not shown in the figures) passing through the point 10a and tangential to the relief zone 12.
  • the invention is applicable for operating on surfaces with a different shape from the one described herein above, i.e. having a non-constant transversal section, which exhibits reliefs and/or recesses of relevant entity.
  • the method comprises the use of an ink-jet printing device 20 having at least a group of printing heads 21, 22, 23, independent of one another, where each head comprises a plurality of ejector nozzles 25 able to issue jets 27 of micro-drops of ink, which nozzles are aligned to form a line of action 26.
  • the direction of the ink jets 27 emitted by the nozzles 25 is perpendicular to the line of action 26, and the lines of action 26 of the various heads 21, 22, 23 are arranged, according to the plan view (see figure 2 ) parallel to one another and staggered to one another such as to exhibit tracts of end that are parallel, two by two and flanked to one another.
  • the head 22 is located in an intermediate transversal position between the heads 21, and 23; the head 21 exhibits an end portion 21b that is parallel to and flanked by a portion of end 22a of the head 22; the end portion 21b exhibits a second end portion 22b, parallel and flanked by an end portion 23a of the head 23.
  • the head 21 exhibits a strip of action F21 which develops over an indefinite length in a longitudinal direction (a direction which is parallel to the advancement direction A of the surface 10 with respect to the device 20), the width of which (dimension in the transversal plane) interests a portion of the width (dimension in a transversal plane) of the surface 10; similarly the head 22 exhibits a strip of action F22 and the head 23 exhibits a strip of action F23; the three strips of action are complementary to one another and together interest the whole surface 10 to be printed, without reciprocal superpositioning.
  • each head issues micro-jets of ink 27 (denoted symbolically, with grey circles of much greater size than in reality, in figure 2 ) in the strip of action F21, F22, F23 thereof.
  • the nozzles 25 which are active are denoted in figure 2 by a small circle barred with an x, while the inactive nozzles 25 are denoted with a small empty circle.
  • 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 described method enables printing, via an ink-jet printing device, on surfaces, in particular of ceramic tiles or other modular elements, having reliefs or recesses exhibiting rises or respective depths that are relatively large, obtaining results that up to now have not been available.
  • Figures 3 and 4 illustrate an embodiment of the printing device 20 in a version comprising four groups G1, G2, G3 and G4 of heads 21, 22, 23, each group G having the above-described characteristics with reference to figures 1 and 2 , in particular in order to enable printing with four different colours.
  • the device 20 exhibits a support frame 3 having a fixed horizontal plate 30 arranged substantially parallel to the upper surface of the conveyor belt 41. All the heads 21, 22, 23 of the four groups G are fixed to the surface of the plate 30.
  • Each group G is formed by heads 21, 22, 23 reciprocally arranged as illustrated with reference to figures 1 and 2 , i.e., briefly, with each head comprising a plurality of ejector nozzles 25 aligned to form a line of action 26, the direction of the ink jets 27 issued by the nozzles 25 being perpendicular to the line of action 26, and the lines of action 26 of the heads being arranged, according to the plan view, parallel to one another and reciprocally staggered such as to exhibit end tracts in twos that are parallel and flanked to one another.
  • 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.
  • the heads 22 of the four groups G are aligned with one another in a horizontal and transversal direction and are fixed to a mobile portion 32 of plate (this portion is indicated by a series of crossed, horizontal and vertical lines in figure 3 ) which is separated from the fixed portion 31; similarly the heads 23 of the four groups G are aligned with one another in a horizontal and transversal direction and are fixed to a mobile portion 33 of plate (this portion is indicated by a series of crossed and 45°-inclined lines in figure 3 ) which is separated from the fixed portion 31.
  • the portion 32 is constrained, by hinge pins 42, to the fixed portion 31 such as to be able to oscillate about a horizontal and transversal rotation axis (parallel to the advancement direction A) defined by the pins 42; similarly, the portion 33 is constrained by hinge pins 43 to the fixed portion 31 such as to be able to oscillate about a horizontal and longitudinal rotation axis (parallel to the advancement direction A) defined by the pins 43.
  • the inclination of the portion 32 of plate can be varied such as to arrange the four heads 22, located on the same portion of plate 32, each having an inclination such as to respect the above-cited criterion relating to the head 22 of figure 1 , i.e. with the respective line of action 26 orientated, in the transversal vertical plane (as illustrated in figure 1 ) such as to be practically parallel to the mean line of inclination, with respect to the horizontal plane, of the transversal profile of the portion 10 of surface subjected to the strip of action F22 of the head 22 itself.
  • 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)
EP11709803.8A 2010-02-02 2011-02-01 A device and method for ink-jet printing on surfaces exhibiting reliefs or recesses Active EP2424733B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRE2010A000006A IT1398100B1 (it) 2010-02-02 2010-02-02 Dispositivo e metodo di stampa a getto di inchiostro, per superfici con rilievi od incavi
PCT/IB2011/000155 WO2011095865A2 (en) 2010-02-02 2011-02-01 A device and method for ink-jet printing on surfaces exhibiting reliefs or recesses

Publications (2)

Publication Number Publication Date
EP2424733A2 EP2424733A2 (en) 2012-03-07
EP2424733B1 true EP2424733B1 (en) 2021-04-07

Family

ID=42338241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11709803.8A Active EP2424733B1 (en) 2010-02-02 2011-02-01 A device and method for ink-jet printing on surfaces exhibiting reliefs or recesses

Country Status (8)

Country Link
EP (1) EP2424733B1 (zh)
CN (1) CN102481792B8 (zh)
BR (1) BRPI1105240B1 (zh)
ES (1) ES2881532T3 (zh)
HK (1) HK1170199A1 (zh)
IT (1) IT1398100B1 (zh)
SM (1) SM201000074B (zh)
WO (1) WO2011095865A2 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103921550B (zh) * 2013-01-14 2016-08-17 佛山市南海区希望陶瓷机械设备有限公司 腰线机
FR3009235B1 (fr) * 2013-07-31 2016-01-01 Dubuit Mach Machine d'impression d'un objet comportant des tetes d'impressions a jets d'encre inclinables.
ITUB20160063A1 (it) * 2016-02-02 2017-08-02 Tecno Italia S R L Macchina e metodo per la smaltatura di manufatti ceramici
DE102017101336A1 (de) * 2017-01-25 2018-07-26 Abb Schweiz Ag Sprühapplikator
EP3953184B1 (en) * 2019-04-08 2024-03-13 Lsinc Corporation Method for ink pressure modulation in a printer for axially symmetric objects
AT522737B1 (de) * 2019-07-08 2021-07-15 Franz Neuhofer Verfahren zum digitalen Bedrucken einer Profilleiste
US20230202199A1 (en) * 2020-05-29 2023-06-29 Probono S.R.L. Machine for the inkjet decoration of ceramic manufactured articles
CN114074374B (zh) * 2020-08-12 2023-03-10 广州精陶机电设备有限公司 一种瓷砖生产方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030085934A1 (en) * 2001-11-07 2003-05-08 Tucker Robert Carey Ink-jet printing system for printing colored images on contact lenses
US20070095218A1 (en) * 2005-10-31 2007-05-03 Thomas & Betts International, Inc. Pole marking system for improved manufacturing process
CN101152801A (zh) * 2006-09-30 2008-04-02 赵东林 凹凸表面喷墨印刷方法
DE102007021767A1 (de) * 2007-05-09 2008-11-13 Bauer, Jörg R. Verfahren und Vorrichtung zum Bedrucken eines Bauteils mit zwei zueinander geneigten Oberflächenbereichen mittels eines digitalen Druckverfahrens
JP2009220452A (ja) * 2008-03-17 2009-10-01 Seiko Epson Corp 液体吐出装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
SM201000074A (it) 2011-09-09
ITRE20100006A1 (it) 2011-08-03
WO2011095865A2 (en) 2011-08-11
IT1398100B1 (it) 2013-02-07
BRPI1105240A2 (pt) 2017-08-29
HK1170199A1 (zh) 2013-02-22
CN102481792A (zh) 2012-05-30
BRPI1105240B1 (pt) 2021-08-03
CN102481792B (zh) 2015-06-17
EP2424733A2 (en) 2012-03-07
SM201000074B (it) 2012-09-07
WO2011095865A3 (en) 2011-11-10
ES2881532T3 (es) 2021-11-29
CN102481792B8 (zh) 2019-10-18

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