EP3002128A2 - Method and device for printing on a curved surface of an object with an ink jet head - Google Patents

Method and device for printing on a curved surface of an object with an ink jet head Download PDF

Info

Publication number
EP3002128A2
EP3002128A2 EP15178766.0A EP15178766A EP3002128A2 EP 3002128 A2 EP3002128 A2 EP 3002128A2 EP 15178766 A EP15178766 A EP 15178766A EP 3002128 A2 EP3002128 A2 EP 3002128A2
Authority
EP
European Patent Office
Prior art keywords
track
web
printing
path
prints
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.)
Granted
Application number
EP15178766.0A
Other languages
German (de)
French (fr)
Other versions
EP3002128B1 (en
EP3002128A3 (en
Inventor
Heiner Pitz
Matthias Schlörholz
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP3002128A2 publication Critical patent/EP3002128A2/en
Publication of EP3002128A3 publication Critical patent/EP3002128A3/en
Application granted granted Critical
Publication of EP3002128B1 publication Critical patent/EP3002128B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • B41J25/003—Mechanisms for bodily moving print heads or carriages parallel to the paper surface for changing the angle between a print element array axis and the printing line, e.g. for dot density changes
    • 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
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • B41J25/005—Mechanisms for bodily moving print heads or carriages parallel to the paper surface for serial printing movements superimposed to character- or line-spacing movements
    • 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

Definitions

  • the present invention relates to a method comprising the features of the preamble of claim 1. Furthermore, the present invention relates to a device having the features of the preamble of claim 9.
  • the invention is in the technical field of ink jet printing, in particular the printing of non-planar, but curved substrates.
  • "Curved” means that the surface has convex and / or concave portions, etc., such as e.g. Body parts of vehicles.
  • a plurality of short tracks also create a plurality of terminals of the tracks to each other. This can also increase the likelihood of noticeable disturbances.
  • An inventive method for printing at least a portion of a flat or preferably curved surface of an object wherein an ink jet head is moved by a relative movement between the ink jet head and object along a first path, thereby printing a first track, and is moved along a second path, and a second track prints, characterized in that a first track edge of the first track and a second track edge of the second track meet at a point and at an angle between about 1 ° and about 179 °, preferably between about 5 ° and about 175 ° include.
  • the angle between the track edges is not 0 ° and also not 180 °, ie the two printed tracks are not parallel to each other.
  • the angle is not 90 ° or not in the range between about 85 ° and 95 °, ie the two printed tracks are not perpendicular to each other.
  • b distance between two adjacent nozzles of a print head
  • 1 distance between two consecutive pressure points in the direction of movement of the print head
  • n, m natural numbers. This ensures that the respective last pressure point of a pressure point row of a second track has the same distance from the pressure points of the first track adjacent to the second track, so that a homogeneous transitional area is created between the two tracks.
  • the image to be printed and composed of the tracks is screened, it may be advantageous to choose the screen angles within two tracks so that they are matched to the angle between the track edges of the two tracks and the occurrence of noticeable connections of the tracks to each other reduce.
  • the tracks may be approximately straight along the curved surface. However, they can also have curves.
  • the width of the tracks may be substantially constant. However, the width may also change, e.g. can decrease the width by turning the print head or by turning off nozzles on the edge of the head.
  • each pixel is printed only once, even with repeated passing over the print head.
  • Pressure points in the respective area of the connection of two tracks are preferably assigned to one of the two tracks in the RIP.
  • the track edges can preferably be printed expiring and mesh with adjacent track edges (so-called stitching).
  • the inventive method described can advantageously lead to a lack of mechatronic precision of a robot-controlled ink jet head not or only to a lesser extent perceptible because disturbing lines are avoided, i. longer parallel pressure gaps with reduced optical density or print overlaps with increased optical density. Such lines perceive the human eye much more sensitive than mutually angled deviations of the pressure points of a given ideal grid.
  • a robot which moves the print head can vary the printing webs, at least in the image plane, because the webs no longer necessarily have to be parallel. This reduces the number of singularities and increases the space in which the robot can print. In other words, by the non-parallel web guide larger objects can be printed with the same robot, as in the case of parallel web guide.
  • a preferred embodiment of the method according to the invention may be characterized in that the angle is between about 20 ° and about 70 ° or between about 110 ° and about 160 °, preferably about 45 ° or about 135 °.
  • a preferred development of the method according to the invention can be distinguished by the fact that the first web and the second web overlap in an overlapping region.
  • a preferred development of the method according to the invention can be distinguished by the fact that the inkjet head prints in at least part of the overlap region only on the first web or on the second web, in particular that the inkjet head prints on the first web in the entire overlap region and not on the second web prints.
  • a preferred development of the method according to the invention can be distinguished by the fact that the second path crosses the first path in the overlapping region.
  • the image area to be printed can be generated when printing a track.
  • the image area can be created when printing two or more tracks. With two tracks, each track can contribute about half of the pixels in the image area, with three tracks each contributing about one third.
  • a preferred development of the method according to the invention can be characterized in that the second web and the first web intersect in a plurality of overlap regions.
  • a preferred development of the method according to the invention may be distinguished by the fact that the section essentially consists of overlapping areas.
  • a preferred development of the method according to the invention can be distinguished by the fact that the inkjet head on the first web and / or on the second web changes its orientation relative to the respective web.
  • An inventive method for printing at least a portion of a flat or preferably curved surface of an object, wherein an ink jet head is moved along a first path, thereby printing a first track and moving along a second path thereby printing a second track, is characterized indicates that the inkjet head on the first web and / or on the second web changes its orientation to the respective web. This process can be referred to as a so-called "tilted pass”.
  • a preferred embodiment of the method according to the invention can be characterized in that the inkjet head is rotated during its forward movement on the first path and / or on the second path about an axis, in particular about an axis perpendicular to the first track or second track axis.
  • the angle of the printhead is changed to the printing direction. This changes the maximum print width of the print head, but the print dot density of the track to be printed is kept constant by compensating the print gaps of the individual print dot rows. It is also a multiple Tilted Pass possible. This creates at least one overlapping area whose print image is composed of pixels multiple tracks.
  • the track to be printed - especially at the beginning or at the end of the track - can become narrower during the printing of a track and can even end in a (print) point.
  • the boundary or the track edge may be curved.
  • the subsequent track can also begin narrower (or in this extreme case at this point), so that the connection of two tracks can be reduced to one point. This results in tracks that (partially) have no parallel boundaries.
  • the lateral connection is preferably realized by a track with a likewise curved boundary.
  • a flat or flat surface can be printed with the inventive method, a flat or flat surface. It can preferably be provided that the tracks and associated tracks or track edges angle of about 120 ° to each other. Such printing may be referred to as "hexagonal printing" because of the resulting tri or hexagonal structures.
  • Such flat substrates may preferably be substrates that are in an upright orientation, eg billboards or other billboards, flat sections of building facades or room walls, flat sections of sidewalls of vehicles (trucks, trailers, containers, trains, wagons), traffic or transportation vehicles signs.
  • These data serve as information for a second path planning, the second path planning being different from the first path planning, i. has other trajectories.
  • the actual printing takes place after this second path planning as a mosaic.
  • This method should z. B. reduce moiré-like effects.
  • (Edge) pressure points, which lie only proportionally on a web of the second path planning, are printed in a correspondingly proportionate size or as a gray value.
  • the traces of the second mosaic can optionally be created with the printhead tilted. The pressure point rows of these tracks are then closer together, the maximum pressure point density is correspondingly higher. As a result, the theoretical pressure points of the first mosaic can be better or more accurately reproduced.
  • the total print image to be generated may be mosaically composed of the tracks, with any track shapes being printable. It is noted that the track shapes fill the printed image in the manner of repetitive or non-repetitive tiling.
  • the invention is not only applicable to the printing of a color, but also in the multi-color printing, eg CMYK printing.
  • each color separation can be treated separately according to the invention, or the inventive method and its developments and the corresponding path planning can be performed separately for each color.
  • the track edges of two or more mutually different colors are not adjacent to each other or parallel, but according to the invention include an angle different from 0 ° and 180 °.
  • a corresponding method can proceed as follows: First, a first Color printed on the object, wherein the track edges of the first color include angles between about 1 ° and about 179 ° to each other, preferably between about 5 ° and about 175 °.
  • the first color is pinned, ie dried, but not completely dried, or partially cured.
  • a second color is printed, with attention also being paid to angles between about 1 ° and about 179 ° to each other, preferably between about 5 ° and about 175 °.
  • the track edges of the second color are aligned so that they not only to each other, but also to the track edges of the first color have said angles. Accordingly, further colors are used, always making sure that all track edges to each other have the said angular relationships. Any color except the last color, if any, will be pinned. Finally, all printed colors are completely dried or hardened together.
  • An alternative mechanical solution in multi-color printing may provide that the printheads for the individual colors are arranged below said angular relationship, e.g. are mounted on a robot arm. In this case, a single path planning would be sufficient for all colors, since the heads when moving the robot to each other have different (fixed) angular relationships and print corresponding "angled" tracks.
  • FIG. 1 shows a schematic perspective view of an apparatus in carrying out a preferred embodiment of the method according to the invention.
  • the surface is preferably curved in two spatial directions.
  • a section 3 can be seen. This section should be printed.
  • an ink jet head 4 is provided.
  • the head is shown in two positions, once as head 4a and once as head 4b.
  • the head is moved along a first path A in a first direction A '.
  • the web A (and also the web B, see below) is curved according to the surface and removed from the surface in such a way that high quality printing is possible and head-to-surface collision is prevented.
  • the head prints a first track a onto the surface.
  • the first track A (and also the web B, see below) consists of ink drops which the head ejects by means of nozzles of a nozzle row.
  • the ejection is controlled and takes into account both the movement of the head and the print image to be printed.
  • the print image can be a solid or a grid. It may also be e.g. Text, picture or pattern included.
  • the ink-jet head 4 is also moved along a second path B in a second direction B '.
  • the movements along both paths preferably take place by means of an articulated-arm robot, linear robot or a combined robot with rotary and sliding joints.
  • the movements along both tracks can be done by moving the ink jet head or by moving the object or by a combination of both movements.
  • the head prints a second track b on the surface 2.
  • FIG. 1 the first track edge a 'of the first track and the second track edge b' of the second track are shown. These meet at a point P and close an angle ⁇ where ⁇ is greater than 0 ° and less than 180 °, ie the two tracks are not parallel. In the example shown, the angle ⁇ is about 45 °.
  • the two webs A and B overlap in an overlap region 5.
  • the two tracks intersect.
  • the second web b only abuts the first web a, but is not continued on the opposite side of the first web.
  • the inkjet head 4 preferably prints only on one of the two webs.
  • the head only prints on the first web in the overlapping area.
  • the first track a is therefore an uninterrupted track and the second track b is an interrupted track, ie the overlap area forms a gap in the second track. But it is also possible that is printed in one part of the overlap area on the first path and in the complementary part on the second path.
  • FIG. 1 also shows that there is at least one further overlap region 6 of the two webs A and B.
  • the web B consists in this case of several track sections or a long, winding section which crosses the track A several times.
  • FIG. 2 shows a schematic perspective view of a device in carrying out a further preferred embodiment of the method according to the invention.
  • the ink jet head 4 is again shown in two positions: once as the ink jet head 4a and once as the ink jet head 4b.
  • Head 4a is substantially parallel to the direction A 'of the first web A with respect to its first orientation 7 and substantially perpendicular to the direction A' with respect to its second orientation 7 '.
  • the change in orientation is effected by rotating the head 4 about its axis 8 during forward movement, preferably by the robot.
  • the respective orientation 7 and 7 'of the head is parallel to the nozzle row of the head.
  • the head prints the first track a during the forward motion.
  • a correspondingly adapted rotation of the head also takes place on an adjacent second web B, on which the second track b is printed.
  • the adaptation of the rotations takes place in such a way that the two tracks a and b vary in their respective width in the forward direction and their edges adjoin one another without gaps.
  • the edges show a serpentine course.
  • its image data drive is to be varied in such a way that, despite the rotation and the resulting speeds and accelerations of the individual nozzles, a high-quality printing result is achieved.

Landscapes

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

Abstract

Ein erfindungsgemäßes Verfahren zum Bedrucken wenigstens eines Abschnitts (3) einer flachen oder bevorzugt gekrümmten Oberfläche (2) eines Objekts (1), wobei ein Tintenstrahlkopf (4, 4a, 4b) durch eine Relativbewegung zwischen Tintenstrahlkopf (4, 4a, 4b) und Objekt (1) entlang einer ersten Bahn (A) bewegt wird und dabei eine erste Spur (a) druckt, und entlang einer zweiten Bahn (B) bewegt wird und dabei eine zweite Spur (b) druckt, zeichnet sich dadurch aus, dass sich eine erste Spurkante (a') der ersten Spur (a) und eine zweite Spurkante (b') der zweiten Spur (b) in einem Punkt (P) treffen und im Punkt (P) einen Winkel (±) zwischen etwa 1° und etwa 179° einschließen. Das Verfahren erlaubt es, die gekrümmte Oberfläche (2) ohne wahrnehmbare Spuranschlüsse zu bedrucken.An inventive method for printing on at least a portion (3) of a flat or preferably curved surface (2) of an object (1), wherein an ink jet head (4, 4a, 4b) by a relative movement between the ink jet head (4, 4a, 4b) and object (1) is moved along a first path (A) and thereby prints a first track (a) and is moved along a second path (B) and thereby prints a second track (b), characterized in that a first track edge (a ') of the first track (a) and a second track edge (b') of the second track (b) meet at a point (P) and at point (P) an angle (±) between about 1 ° and about 179 ° include. The method makes it possible to print the curved surface (2) without noticeable trace connections.

Description

Die vorliegende Erfindung betrifft ein Verfahren mit den Merkmalen des Oberbegriffs von Anspruch 1. Weiterhin betrifft die vorliegende Erfindung eine Vorrichtung mit den Merkmalen des Oberbegriffs von Anspruch 9.The present invention relates to a method comprising the features of the preamble of claim 1. Furthermore, the present invention relates to a device having the features of the preamble of claim 9.

Die Erfindung liegt in dem technischen Gebiet der des Tintenstrahldrucks, insbesondere das Bedrucken nicht ebener, sondern gekrümmter Substrate. "Gekrümmt" meint, dass die Oberfläche konvexe und/oder konkave Abschnitte etc. aufweist, wie z.B. Karosserieteile von Fahrzeugen.The invention is in the technical field of ink jet printing, in particular the printing of non-planar, but curved substrates. "Curved" means that the surface has convex and / or concave portions, etc., such as e.g. Body parts of vehicles.

Der bekannte Stand der Technik in diesem technischen Gebiet umfasst Folgendes:

  • Aus der DE 10 2012 006 371 A1 sind bereits ein Verfahren und eine Vorrichtung bekannt, welche es erlauben, gekrümmte Oberflächen zu bedrucken und den Aufdruck zu trocknen. Dabei werden ein Tintenstrahlkopf und ein Trockner mittels eines Roboters entlang des Objekts geführt oder umgekehrt. Die noch nicht veröffentlichten DE 10 2013 016 006.5 und DE 10 2014 004 507.2 offenbaren Verfahren und eine Vorrichtung, welches es insbesondere erlauben, kugelförmige Objekte zu bedrucken, wobei das jeweilige Objekt bewegt wird.
  • Aus der noch nicht veröffentlichten DE 10 2013 014 444.2 ist ein Verfahren bekannt, welches es erlaubt, Bahnen für das Bedrucken und Trocknen gekrümmter Oberflächen zu planen und den Druckkopf/den Trockner auf den geplanten Bahnen zu führen.
The known state of the art in this technical field comprises the following:
  • From the DE 10 2012 006 371 A1 There are already known a method and a device which allow to print on curved surfaces and to dry the print. An ink jet head and a dryer are guided along the object by means of a robot or vice versa. The not yet published DE 10 2013 016 006.5 and DE 10 2014 004 507.2 disclose method and apparatus which in particular allow to print spherical objects, whereby the respective object is moved.
  • From the not yet published DE 10 2013 014 444.2 For example, a method is known which allows to plan webs for printing and drying curved surfaces and to guide the printhead / dryer on the intended tracks.

Die DE 10 2012 006 370 A1 und die noch nicht veröffentlichte DE 10 2013 019 359.1 offenbarten Verfahren und Vorrichtungen, welche es erlauben, bei Bedrucken von gekrümmten Oberflächen mehrere parallele Bahnen so zu planen oder auszuführen, dass wahrnehmbare Störungen im seitlichen Anschluss der gedruckten Tintenspuren vermieden werden.The DE 10 2012 006 370 A1 and the not yet published DE 10 2013 019 359.1 Disclosed methods and apparatus that allow to plan or execute multiple parallel paths when printing on curved surfaces such that noticeable disturbances in the lateral connection of the printed ink traces are avoided.

Sofern der Aufdruck getrocknet werden muss, kann es erforderlich sein, kurze Spuren zu drucken, um diese ohne störenden Zeitverzug trocknen zu können. Eine Vielzahl von kurzen Spuren erzeugt jedoch auch eine Vielzahl von Anschlüssen der Spuren aneinander. Dadurch kann auch die Wahrscheinlichkeit für wahrnehmbare Störungen im Anschluss steigen.If the print has to be dried, it may be necessary to print short prints in order to dry them without disturbing time delay. However, a plurality of short tracks also create a plurality of terminals of the tracks to each other. This can also increase the likelihood of noticeable disturbances.

Bekannt ist zudem, dass das menschliche Auge lange und gerade verlaufende Linien im ansonsten homogenen Druckbild leichter wahrnimmt, als kurze und in Kurven verlaufende,It is also known that the human eye perceives long and straight lines more easily in the otherwise homogeneous print image than short and curved lines.

Vor diesem Hintergrund ist es Aufgabe der vorliegenden Erfindung, ein gegenüber dem Stand der Technik verbessertes Verfahren zu schaffen, welches es ermöglicht, wenigstens zwei gedruckte Tintenstrahl-Spuren zu erzeugen, deren Anschluss aneinander mit dem bloßen Auge nicht wahrnehmbar ist und daher keine Störungen aufweist.Against this background, it is an object of the present invention to provide an improved over the prior art method, which makes it possible to produce at least two printed inkjet tracks whose connection to each other is imperceptible to the naked eye and therefore has no interference.

Eine erfindungsgemäße Lösung dieser Aufgabe stellt ein Verfahren mit den Merkmalen von Hauptanspruch 1 dar.An inventive solution to this problem is a method having the features of main claim 1.

Ein erfindungsgemäßes Verfahren zum Bedrucken wenigstens eines Abschnitts einer flachen oder vorzugsweise gekrümmten Oberfläche eines Objekts, wobei ein Tintenstrahlkopf durch eine Relativbewegung zwischen Tintenstrahlkopf und Objekt entlang einer ersten Bahn bewegt wird und dabei eine erste Spur druckt, und entlang einer zweiten Bahn bewegt wird und dabei eine zweite Spur druckt, zeichnet sich dadurch aus, dass sich eine erste Spurkante der ersten Spur und eine zweite Spurkante der zweiten Spur in einem Punkt treffen und im Punkt einen Winkel zwischen etwa 1° und etwa 179°, bevorzugt zwischen etwa 5° und etwa 175° einschließen.An inventive method for printing at least a portion of a flat or preferably curved surface of an object, wherein an ink jet head is moved by a relative movement between the ink jet head and object along a first path, thereby printing a first track, and is moved along a second path, and a second track prints, characterized in that a first track edge of the first track and a second track edge of the second track meet at a point and at an angle between about 1 ° and about 179 °, preferably between about 5 ° and about 175 ° include.

Erfindungsgemäß ist der Winkel zwischen den Spurkanten nicht 0° und auch nicht 180°, d.h. die beiden gedruckten Spuren verlaufen nicht parallel zueinander. Bevorzugt ist der Winkel auch nicht 90° oder nicht im Bereich zwischen etwa 85° und 95°, d.h. die beiden gedruckten Spuren verlaufen auch nicht senkrecht zueinander. Das erfindungsgemäße Verfahren ermöglicht es daher mit Vorteil, zwei gedruckte Tintenstrahl-Spuren zu erzeugen, deren Anschluss aneinander mit dem bloßen Auge nicht wahrnehmbar ist und daher keine Störungen aufweist.According to the invention, the angle between the track edges is not 0 ° and also not 180 °, ie the two printed tracks are not parallel to each other. Preferably, the angle is not 90 ° or not in the range between about 85 ° and 95 °, ie the two printed tracks are not perpendicular to each other. The method according to the invention therefore advantageously makes it possible to produce two printed inkjet tracks whose connection to one another is imperceptible to the naked eye and therefore has no disturbances.

Der Winkel α kann bevorzugt derart gewählt werden, dass gilt: α=arctan (n*b/m*1) mit α ≠ 90°. Dabei gilt: b = Abstand zweier benachbarter Düsen eines Druckkopfs, 1 = Abstand zweier aufeinander folgender Druckpunkte in Bewegungsrichtung des Druckkopfes, n, m = natürliche Zahlen. Dadurch ist gewährleistet, dass der jeweils letzte Druckpunkt einer Druckpunktreihe einer zweiten Spur den gleichen Abstand zu den zur zweiten Spur angrenzenden Druckpunkten der ersten Spur besitzt, so dass ein homogener Übergangsbereich zwischen den beiden Spuren entsteht.The angle α can preferably be chosen such that: α = arctan (n * b / m * 1) with α ≠ 90 °. Where: b = distance between two adjacent nozzles of a print head, 1 = distance between two consecutive pressure points in the direction of movement of the print head, n, m = natural numbers. This ensures that the respective last pressure point of a pressure point row of a second track has the same distance from the pressure points of the first track adjacent to the second track, so that a homogeneous transitional area is created between the two tracks.

Sofern das zu druckende und aus den Spuren zusammengesetzte Bild gerastert ist, kann es von Vorteil sein, die Rasterwinkel innerhalb zweier Spuren so zu wählen, dass diese auf den Winkel zwischen den Spurkanten der beiden Spuren abgestimmt sind und das Auftreten wahrnehmbarer Anschlüsse der Spuren aneinander zusätzlich verringern.If the image to be printed and composed of the tracks is screened, it may be advantageous to choose the screen angles within two tracks so that they are matched to the angle between the track edges of the two tracks and the occurrence of noticeable connections of the tracks to each other reduce.

Die Spuren können annährend geradeaus entlang der gekrümmten Oberfläche verlaufen. Sie können allerdings auch Kurven aufweisen. Die Breite der Spuren kann im Wesentlichen konstant sein. Die Breite kann sich allerdings auch ändern, z.B. kann die Breite durch ein Drehen des Druckkopfes oder durch Abschalten von Düsen am Rand des Kopfes abnehmen.The tracks may be approximately straight along the curved surface. However, they can also have curves. The width of the tracks may be substantially constant. However, the width may also change, e.g. can decrease the width by turning the print head or by turning off nozzles on the edge of the head.

Es kann auch von Vorteil sein, bereits bei der Erzeugung der Druckdaten (beim so genannten RIP) die bei der Bahnplanung benutzten Winkel zwischen Spurkanten und möglichen Überlappbereiche zu berücksichtigen. Bevorzugt derart, dass jeder Bildpunkt nur einmal gedruckt wird, auch bei mehrmaligem Überfahren mit dem Druckkopf. Druckpunkte im jeweiligen Bereich des Anschlusses zweier Spuren werden bim RIP bevorzugt einer der beiden Spuren zugeordnet.It may also be advantageous to take into account the angles between track edges and possible overlap areas used in path planning already during the generation of the print data (in the so-called RIP). Preferably, such that each pixel is printed only once, even with repeated passing over the print head. Pressure points in the respective area of the connection of two tracks are preferably assigned to one of the two tracks in the RIP.

Die Spurenkanten können bevorzugt auslaufend gedruckt werden und mit benachbarten Spurkanten verzahnen (so genanntes Stitching).The track edges can preferably be printed expiring and mesh with adjacent track edges (so-called stitching).

Das beschriebene erfindungsgemäße Verfahren kann in vorteilhafter Weise dazu führen, dass sich eine mangelnde mechatronische Präzision eines robotergeführten Tintenstrahlkopfes nicht oder nur in geringerem Maße wahrnehmbar auswirkt, weil störende Linien vermieden werden, d.h. längere parallele Drucklücken mit abgesenkter optischer Dichte oder Drucküberschneidungen mit angehobener optischer Dichte. Solche Linien nimmt das menschliche Auge wesentlich empfindlicher wahr, als zueinander gewinkelte Abweichungen der Druckpunkte von einem vorgegebenen idealen Raster.The inventive method described can advantageously lead to a lack of mechatronic precision of a robot-controlled ink jet head not or only to a lesser extent perceptible because disturbing lines are avoided, i. longer parallel pressure gaps with reduced optical density or print overlaps with increased optical density. Such lines perceive the human eye much more sensitive than mutually angled deviations of the pressure points of a given ideal grid.

Beim Durchfahren eines Knickarm-Roboters (als Bewegungseinheit für den Druckkopf) durch den theoretisch erreichbaren Raum auf vorgegebenen Bahnen kommt es zu sogenannten Singularitäten. Diese können durch den Roboter in der Praxis nicht durchlaufen werden. Dadurch könnten einzelne geplante Spuren nicht gedruckt werden und der praktisch nutzbare Raum des Roboters würde eingeschränkt. Singularitäten können jedoch vermieden werden, wenn die Bahn, die durch diesen Punkt der Singularität führt, geändert werden kann. Erfindungsgemäß kann ein Roboter, welcher den Druckkopf bewegt, die Druckbahnen zumindest in der Bildebene variieren, denn die Bahnen müssen nicht mehr zwingend parallel liegen. Hierdurch wird die Anzahl der Singularitäten verringert und der Raum vergrößert, in dem der Roboter drucken kann. Anders ausgedrückt, können durch die nicht-parallelen Bahnführung größere Objekte mit dem gleichen Roboter bedruckt werden, als im Fall der parallelen Bahnführung.When driving through an articulated-arm robot (as a movement unit for the print head) through the theoretically achievable space on predetermined paths, so-called singularities occur. These can not be traversed by the robot in practice. As a result, individual planned tracks could not be printed and the practically usable space of the robot would be restricted. However, singularities can be avoided if the trajectory passing through this point of singularity can be changed. According to the invention, a robot which moves the print head can vary the printing webs, at least in the image plane, because the webs no longer necessarily have to be parallel. This reduces the number of singularities and increases the space in which the robot can print. In other words, by the non-parallel web guide larger objects can be printed with the same robot, as in the case of parallel web guide.

Vorteilhafte und daher bevorzugte Weiterbildungen der Erfindung ergeben sich aus den zugehörigen Unteransprüchen sowie aus der Beschreibung und den zugehörigen Zeichnungen.Advantageous and therefore preferred developments of the invention will become apparent from the accompanying dependent claims and from the description and the accompanying drawings.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass der Winkel zwischen etwa 20° und etwa 70° oder zwischen etwa 110° und etwa 160°, bevorzugt bei etwa 45° oder bei etwa 135° liegt.A preferred embodiment of the method according to the invention may be characterized in that the angle is between about 20 ° and about 70 ° or between about 110 ° and about 160 °, preferably about 45 ° or about 135 °.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass die erste Bahn und die zweite Bahn in einem Überlappbereich überlappen.A preferred development of the method according to the invention can be distinguished by the fact that the first web and the second web overlap in an overlapping region.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass der Tintenstrahlkopf in zumindest einem Teil des Überlappbereich nur auf der ersten Bahn oder auf der zweiten Bahn druckt, insbesondere dass der Tintenstrahlkopf im gesamten Überlappbereich auf der ersten Bahn druckt und auf der zweiten Bahn nicht druckt.A preferred development of the method according to the invention can be distinguished by the fact that the inkjet head prints in at least part of the overlap region only on the first web or on the second web, in particular that the inkjet head prints on the first web in the entire overlap region and not on the second web prints.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass die zweite Bahn die erste Bahn in dem Überlappbereich kreuzt. Im Überlappbereich kann der zu druckende Bildbereich beim Drucken einer Spur erzeugt werden. Alternativ kann der Bildbereich beim Drucken zweier oder mehrere Spuren erzeugt werden. Bei zwei Spuren kann jede Spur je etwa die Hälfte der Bildpunkte m Bildbereich beitragen, bei drei Spuren je etwa ein Drittel.A preferred development of the method according to the invention can be distinguished by the fact that the second path crosses the first path in the overlapping region. In the overlap area, the image area to be printed can be generated when printing a track. Alternatively, the image area can be created when printing two or more tracks. With two tracks, each track can contribute about half of the pixels in the image area, with three tracks each contributing about one third.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass sich die zweite Bahn und die erste Bahn in mehreren Überlappbereichen kreuzen.A preferred development of the method according to the invention can be characterized in that the second web and the first web intersect in a plurality of overlap regions.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass sich der Abschnitt im Wesentlichen aus Überlappbereichen zusammensetzt.A preferred development of the method according to the invention may be distinguished by the fact that the section essentially consists of overlapping areas.

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass der Tintenstrahlkopf auf der ersten Bahn und/oder auf der zweiten Bahn seine Ausrichtung zur jeweiligen Bahn verändert.A preferred development of the method according to the invention can be distinguished by the fact that the inkjet head on the first web and / or on the second web changes its orientation relative to the respective web.

Eine erfindungsgemäße Lösung dieser Aufgabe stellt auch ein Verfahren mit den Merkmalen von Hauptanspruch 9 dar.An inventive solution to this problem is also a method having the features of main claim 9.

Ein erfindungsgemäßes Verfahren zum Bedrucken wenigstens eines Abschnitts einer flachen oder vorzugsweise gekrümmten Oberfläche eines Objekts, wobei ein Tintenstrahlkopf entlang einer ersten Bahn bewegt wird und dabei eine erste Spur druckt, und entlang einer zweiten Bahn bewegt wird und dabei eine zweite Spur druckt, zeichnet sich dadurch aus, dass der Tintenstrahlkopf auf der ersten Bahn und/oder auf der zweiten Bahn seine Ausrichtung zur jeweiligen Bahn verändert. Dieser Vorgang kann als so genannter "Tilted Pass" bezeichnet werden.An inventive method for printing at least a portion of a flat or preferably curved surface of an object, wherein an ink jet head is moved along a first path, thereby printing a first track and moving along a second path thereby printing a second track, is characterized indicates that the inkjet head on the first web and / or on the second web changes its orientation to the respective web. This process can be referred to as a so-called "tilted pass".

Eine bevorzugte Weiterbildung des erfindungsgemäßen Verfahrens kann sich dadurch auszeichnen, dass der Tintenstrahlkopf während seiner Vorwärtsbewegung auf der ersten Bahn und/oder auf der zweiten Bahn um eine Achse gedreht wird, insbesondere um eine zur Fläche ersten Spur bzw. zweiten Spur senkrechten Achse.A preferred embodiment of the method according to the invention can be characterized in that the inkjet head is rotated during its forward movement on the first path and / or on the second path about an axis, in particular about an axis perpendicular to the first track or second track axis.

Beim einfachen Tilted Pass ist der Winkel des Druckkopfs zur Druckrichtung geändert. Dadurch verändert sich die maximale Druckbreite des Druckkopfs, die Druckpunktdichte der zu druckenden Spur wird jedoch durch Kompensation der Druckabstände der einzelnen Druckpunktreihen konstant gehalten. Es ist auch ein mehrfacher Tilted Pass möglich. Dabei entsteht zumindest ein Überlappungsbereich, dessen Druckbild sich aus Bildpunkten mehrere Spuren zusammensetzt.With the simple tilt pass, the angle of the printhead is changed to the printing direction. This changes the maximum print width of the print head, but the print dot density of the track to be printed is kept constant by compensating the print gaps of the individual print dot rows. It is also a multiple Tilted Pass possible. This creates at least one overlapping area whose print image is composed of pixels multiple tracks.

Beim dynamischen Tilted Pass kann die zu druckende Spur - insbesondere am Spuranfang oder Spurende (stirnseitiger Anschluss) - während des Druckens einer Spur schmaler werden und kann sogar in einem (Druck-) Punkt enden. Die Begrenzung bzw. die Spurkante kann geschwungen sein. Die sich anschließende Spur kann ebenfalls verschmälert beginnen (bzw. im Extremfall in diesem Punkt), so dass der Anschluss zweier Spuren auf einen Punkt reduziert sein kann. Dadurch entstehen Spuren, die (teilweise) keine parallel verlaufenden Begrenzungen besitzen. Der seitliche Anschluss wird bevorzugt durch eine Spur mit einer ebenfalls geschwungenen Begrenzung realisiert.With the Dynamic Tilted Pass, the track to be printed - especially at the beginning or at the end of the track - can become narrower during the printing of a track and can even end in a (print) point. The boundary or the track edge may be curved. The subsequent track can also begin narrower (or in this extreme case at this point), so that the connection of two tracks can be reduced to one point. This results in tracks that (partially) have no parallel boundaries. The lateral connection is preferably realized by a track with a likewise curved boundary.

Anstelle einer bevorzugt gekrümmten Oberfläche kann mit den erfindungsmäßen Verfahren auch eine flache bzw. ebene Oberfläche bedruckt werden. Dabei kann bevorzugt vorgesehen sein, dass die Bahnen und zugehörigen Spuren bzw. Spurkanten Winkel von etwa 120° zueinander aufweisen. Ein solches Drucken kann wegen der entstehenden drei- bzw. insgesamt sechseckigen Strukturen als "Hexagonaldruck" bezeichnet werden. Solche flachen Substrate können bevorzugt Substrate sein, die sich in einer aufrechten Ausrichtung befinden, z.B. Plakatwände oder andere Werbeflächen, flache Abschnitte von Gebäudefassaden oder Raumwänden, flache Abschnitte von Seitenwänden von Fahrzeugen (LKW, Anhänger, Container, Züge, Waggons), Verkehrs- oder Hinweisschilder.Instead of a preferably curved surface can be printed with the inventive method, a flat or flat surface. It can preferably be provided that the tracks and associated tracks or track edges angle of about 120 ° to each other. Such printing may be referred to as "hexagonal printing" because of the resulting tri or hexagonal structures. Such flat substrates may preferably be substrates that are in an upright orientation, eg billboards or other billboards, flat sections of building facades or room walls, flat sections of sidewalls of vehicles (trucks, trailers, containers, trains, wagons), traffic or transportation vehicles signs.

Es kann ferner vorgesehen sein, die berechneten Druckpunkte einer ersten Bahnplanung zu speichern statt als Mosaik zu drucken. Diese Daten dienen als Information für eine zweite Bahnplanung, wobei sich die zweite Bahnplanung von der ersten Bahnplanung unterscheidet, d.h. andere Bahnverläufe aufweist. Das tatsächliche Bedrucken erfolgt nach dieser zweiten Bahnplanung als Mosaik. Dieses Verfahren soll z. B. Moirée-artige Effekte verringern. (Rand-) Druckpunkte, die nur anteilig auf einer Bahn der zweiten Bahnplanung liegen, werden dabei in entsprechend anteiliger Größe oder als Grauwert gedruckt. Die Spuren des zweiten Mosaiks können optional mit schräg gestelltem Druckkopf erstellt werden. Die Druckpunktreihen dieser Spuren stehen dann enger nebeneinander, die maximale Druckpunktdichte wird entsprechend höher. Dadurch lassen sich die theoretischen Druckpunkte des ersten Mosaiks besser bzw. genauer abbilden.It can also be provided to store the calculated pressure points of a first path planning instead of printing as a mosaic. These data serve as information for a second path planning, the second path planning being different from the first path planning, i. has other trajectories. The actual printing takes place after this second path planning as a mosaic. This method should z. B. reduce moiré-like effects. (Edge) pressure points, which lie only proportionally on a web of the second path planning, are printed in a correspondingly proportionate size or as a gray value. The traces of the second mosaic can optionally be created with the printhead tilted. The pressure point rows of these tracks are then closer together, the maximum pressure point density is correspondingly higher. As a result, the theoretical pressure points of the first mosaic can be better or more accurately reproduced.

Das insgesamt zu erzeugende Druckbild kann mosaikartig aus den Spuren zusammengesetzt sein, wobei beliebige Spurformen gedruckt werden können. Dabei wird beachtet, dass die Spurformen das Druckbild in der Art und Weise einer sich wiederholenden oder nicht-wiederholenden Parkettierung ausfüllen.The total print image to be generated may be mosaically composed of the tracks, with any track shapes being printable. It is noted that the track shapes fill the printed image in the manner of repetitive or non-repetitive tiling.

Die Erfindung ist nicht nur beim Drucken einer Farbe anwendbar, sondern auch beim Mehrfarbdruck, z.B. beim CMYK-Druck. Dabei kann jeder Farbauszug separat gemäß der Erfindung behandelt werden, bzw. das erfindungsgemäße Verfahren und seine Weiterbildungen sowie die entsprechenden Bahnplanungen können für jede Farbe separat durchgeführt werden. Von besonderem Vorteil ist es, wenn die Spurkanten zweier oder mehrerer zueinander verschiedener Farben nicht aufeinander oder parallel nebeneinander liegen, sondern erfindungsgemäß einen von 0° und 180° verschiedenen Winkel einschließen. Ein entsprechendes Verfahren kann wie folgt ablaufen: Zuerst wird eine erste Farbe auf das Objekt gedruckt, wobei die Spurkanten der ersten Farbe Winkel zwischen etwa 1° und etwa 179° zueinander, bevorzugt zwischen etwa 5° und etwa 175°, einschließen. Dann wird die erste Farbe gepinnt, d.h. angetrocknet, jedoch nicht vollständig durchgetrocknet, bzw. teilgehärtet. Dann wird eine zweite Farbe aufgedruckt, wobei ebenfalls auf Winkel zwischen etwa 1° und etwa 179° zueinander, bevorzugt zwischen etwa 5° und etwa 175°, geachtet wird. Die Spurkanten der zweiten Farbe werden so ausgerichtet, dass diese nicht nur zueinander, sondern auch zu den Spurkanten der ersten Farbe die genannten Winkel aufweisen. Entsprechend wird für weitere Farben fortgefahren, immer darauf achtend, dass alle Spurkanten zueinander die genannten Winkelbeziehungen aufweisen. Jede Farbe, außer ggf. der letzten Farbe, wird gepinnt. Abschließend werden alle aufgedruckten Farben gemeinsam vollständig getrocknet bzw. durchgehärtet.The invention is not only applicable to the printing of a color, but also in the multi-color printing, eg CMYK printing. In this case, each color separation can be treated separately according to the invention, or the inventive method and its developments and the corresponding path planning can be performed separately for each color. It is particularly advantageous if the track edges of two or more mutually different colors are not adjacent to each other or parallel, but according to the invention include an angle different from 0 ° and 180 °. A corresponding method can proceed as follows: First, a first Color printed on the object, wherein the track edges of the first color include angles between about 1 ° and about 179 ° to each other, preferably between about 5 ° and about 175 °. Then the first color is pinned, ie dried, but not completely dried, or partially cured. Then a second color is printed, with attention also being paid to angles between about 1 ° and about 179 ° to each other, preferably between about 5 ° and about 175 °. The track edges of the second color are aligned so that they not only to each other, but also to the track edges of the first color have said angles. Accordingly, further colors are used, always making sure that all track edges to each other have the said angular relationships. Any color except the last color, if any, will be pinned. Finally, all printed colors are completely dried or hardened together.

Eine alternative mechanische Lösung beim Mehrfarbdruck kann vorsehen, dass die Druckköpfe für die einzelnen Farben unter der genannten Winkelbeziehung zueinander angeordnet, z.B. an einem Roboterarm montiert sind. In diesem Fall würde eine einzige Bahnplanung für alle Farben ausreichen, da die Köpfe beim Bewegen des Roboters zueinander verschiedene (feste) Winkelbeziehungen aufweisen und entsprechend "gewinkelte" Spuren drucken.An alternative mechanical solution in multi-color printing may provide that the printheads for the individual colors are arranged below said angular relationship, e.g. are mounted on a robot arm. In this case, a single path planning would be sufficient for all colors, since the heads when moving the robot to each other have different (fixed) angular relationships and print corresponding "angled" tracks.

Die Erfindung als solche und vorteilhafte Weiterbildungen der Erfindung werden nachfolgend unter Bezug auf die zugehörigen Zeichnungen anhand zweier bevorzugten Ausführungsbeispiele näher beschrieben. In den Zeichnungen sind einander entsprechende Elemente mit jeweils denselben Bezugszeichen versehen.The invention as such and advantageous developments of the invention are described below with reference to the accompanying drawings with reference to two preferred embodiments. In the drawings, corresponding elements are provided with the same reference numerals.

Die Zeichnungen zeigen:

Figur 1
eine schematische Perspektivdarstellung einer Vorrichtung bei der Durchführung einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens; und
Figur 2
eine schematische Perspektivdarstellung einer Vorrichtung bei der Durchführung einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens.
The drawings show:
FIG. 1
a schematic perspective view of an apparatus in carrying out a preferred embodiment of the method according to the invention; and
FIG. 2
a schematic perspective view of a device in carrying out a further preferred embodiment of the method according to the invention.

Figur 1 zeigt eine schematische Perspektivdarstellung einer Vorrichtung bei der Durchführung einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens. FIG. 1 shows a schematic perspective view of an apparatus in carrying out a preferred embodiment of the method according to the invention.

Gezeigt ist ein Objekt 1 mit einer gekrümmten Oberfläche 2. Die Oberfläche ist bevorzugt in zwei Raumrichtungen gekrümmt. Auf der Oberfläche ist ein Abschnitt 3 erkennbar. Dieser Abschnitt soll bedruckt werden. Für das Bedrucken ist ein Tintenstrahlkopf 4 vorgesehen. Der Kopf ist in zwei Positionen, einmal als Kopf 4a und einmal als Kopf 4b gezeigt. Der Kopf wird entlang einer ersten Bahn A in eine erste Richtung A' bewegt. Die Bahn A (und auch die Bahn B; siehe unten) ist entsprechend der Oberfläche gekrümmt und derart von der Oberfläche entfernt, dass ein Drucken mit hohen Qualität möglich und eine Kollision zwischen Kopf und Oberfläche verhindert wird. Während der Bewegung entlang der ersten Bahn druckt der Kopf eine erste Spur a auf die Oberfläche. Die erste Spur A (und auch die Bahn B; siehe unten) besteht aus Tinte bzw. Tintentropfen, welche der Kopf mittels Düsen einer Düsenreihe ausstößt. Der Ausstoß erfolgt gesteuert und berücksichtig sowohl die Fortbewegung des Kopfs als auch das zu druckende Druckbild. Das Druckbild kann eine Vollfläche oder ein Raster sein. Es kann ferner z.B. Text, Bild oder Muster enthalten.Shown is an object 1 with a curved surface 2. The surface is preferably curved in two spatial directions. On the surface, a section 3 can be seen. This section should be printed. For printing, an ink jet head 4 is provided. The head is shown in two positions, once as head 4a and once as head 4b. The head is moved along a first path A in a first direction A '. The web A (and also the web B, see below) is curved according to the surface and removed from the surface in such a way that high quality printing is possible and head-to-surface collision is prevented. During the movement along the first path, the head prints a first track a onto the surface. The first track A (and also the web B, see below) consists of ink drops which the head ejects by means of nozzles of a nozzle row. The ejection is controlled and takes into account both the movement of the head and the print image to be printed. The print image can be a solid or a grid. It may also be e.g. Text, picture or pattern included.

Der Tintenstrahlkopf 4 wird auch entlang einer zweiten Bahn B in eine zweite Richtung B' bewegt. Die Bewegungen entlang beider Bahnen erfolgen bevorzugt mittels eines Gelenkarm-Roboters, Linear-Roboters oder eines kombinierten Roboters mit Dreh- und Schubgelenken. Die Bewegungen entlang beider Bahnen können durch bewegen des Tintenstahlkopfs oder durch Bewegen des Objekts oder durch eine Kombination beider Bewegungen erfolgen. Während der Bewegung entlang der zweiten Bahn druckt der Kopf eine zweite Spur b auf die Oberfläche 2.The ink-jet head 4 is also moved along a second path B in a second direction B '. The movements along both paths preferably take place by means of an articulated-arm robot, linear robot or a combined robot with rotary and sliding joints. The movements along both tracks can be done by moving the ink jet head or by moving the object or by a combination of both movements. During the movement along the second path, the head prints a second track b on the surface 2.

In Figur 1 sind die erste Spurkante a' der ersten Spur und die zweite Spurkante b' der zweiten Spur gezeigt. Diese treffen sich in einem Punkt P und schließen einen Winkel α ein, wobei α größer 0° und kleiner 180° ist, d.h. die beiden Spuren verlaufen nicht parallel. Im gezeigten Beispiel ist der Winkel α etwa 45°.In FIG. 1 the first track edge a 'of the first track and the second track edge b' of the second track are shown. These meet at a point P and close an angle α where α is greater than 0 ° and less than 180 °, ie the two tracks are not parallel. In the example shown, the angle α is about 45 °.

In Figur 1 ist erkennbar, dass die beiden Bahnen A und B in einem Überlappungsbereich 5 überlappen. Im gezeigten Beispiel kreuzen sich die beiden Bahnen. Möglich ist aber auch, dass die zweite Bahn b nur an die erste Bahn a anstößt, nicht aber auf der gegenüberliegenden Seite der ersten Bahn fortgeführt wird. Im Überlappungsbereich druckt der Tintenstrahlkopf 4 bevorzugt nur auf einer der beiden Bahnen. Im gezeigten Beispiel druckt der Kopf im Überlappungsbereich nur auf der ersten Bahn. Die erste Spur a ist daher eine ununterbrochene Spur und die zweite Spur b eine unterbrochene Spur, d.h. der Überlappungsbereich bildet in der zweiten Spur eine Lücke. Möglich ist aber auch, dass in einem Teil des Überlappungsbereich auf der ersten Bahn gedruckt wird und im komplementären Teil auf der zweiten Bahn.In FIG. 1 It can be seen that the two webs A and B overlap in an overlap region 5. In the example shown, the two tracks intersect. However, it is also possible that the second web b only abuts the first web a, but is not continued on the opposite side of the first web. In the overlapping area, the inkjet head 4 preferably prints only on one of the two webs. In the example shown, the head only prints on the first web in the overlapping area. The first track a is therefore an uninterrupted track and the second track b is an interrupted track, ie the overlap area forms a gap in the second track. But it is also possible that is printed in one part of the overlap area on the first path and in the complementary part on the second path.

Figur 1 lässt auch erkennen, dass es wenigstens einen weiteren Überlappungsbereich 6 der beiden Bahnen A und B gibt. Die Bahn B besteht in diesem Fall aus mehreren Bahnabschnitten oder aus ein langen, gewundenen Abschnitt, der die Bahn A mehrfach kreuzt. FIG. 1 also shows that there is at least one further overlap region 6 of the two webs A and B. The web B consists in this case of several track sections or a long, winding section which crosses the track A several times.

Figur 2 zeigt eine schematische Perspektivdarstellung einer Vorrichtung bei der Durchführung einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens. FIG. 2 shows a schematic perspective view of a device in carrying out a further preferred embodiment of the method according to the invention.

In Figur 2 ist der Tintenstrahlkopf 4 wiederum in zwei Position gezeigt: einmal als Tintenstrahlkopf 4a und einmal als Tintenstrahlkopf 4b. Kopf 4a steht bezüglich seiner ersten Ausrichtung 7 im Wesentlichen parallel zur Richtung A' der ersten Bahn A und bezüglich seiner zweiten Ausrichtung 7' im Wesentlichen senkrecht zur Richtung A'. Die Änderung der Ausrichtung wird durch ein Drehen des Kopfs 4 um seine Achse 8 während der Vorwärtsbewegung bewirkt, bevorzugt durch den Roboter. Die jeweilige Ausrichtung 7 und 7' des Kopfs ist dabei parallel zu der Düsenreihe des Kopfs. Der Kopf druckt während der Vorwärtsbewegung die erste Spur a . Eine entsprechend angepasste Drehung des Kopfs erfolgt auch auf einer benachbarten zweiten Bahn B, auf der die zweite Spur b gedruckt wird. Die Anpassung der Drehungen (über eine Steuerung) erfolgt dabei derart, dass die beiden Spuren a und b in ihrer jeweiligen Breite in der Vorwärtsrichtung variieren und ihre Kanten lückenlos aneinander anschließen. In dem gezeigten Beispiel zeigen die Kanten einen schlangenförmigen Verlauf. Bei der Drehung des Kopfs ist dessen Bilddaten-Ansteuerung so zu variieren, dass trotz der Drehung und der daraus resultierenden Geschwindigkeiten und Beschleunigungen der einzelnen Düsen ein qualitativ hochwertiges Druckergebnis erzielt wird.In FIG. 2 For example, the ink jet head 4 is again shown in two positions: once as the ink jet head 4a and once as the ink jet head 4b. Head 4a is substantially parallel to the direction A 'of the first web A with respect to its first orientation 7 and substantially perpendicular to the direction A' with respect to its second orientation 7 '. The change in orientation is effected by rotating the head 4 about its axis 8 during forward movement, preferably by the robot. The respective orientation 7 and 7 'of the head is parallel to the nozzle row of the head. The head prints the first track a during the forward motion. A correspondingly adapted rotation of the head also takes place on an adjacent second web B, on which the second track b is printed. The adaptation of the rotations (via a controller) takes place in such a way that the two tracks a and b vary in their respective width in the forward direction and their edges adjoin one another without gaps. In the example shown, the edges show a serpentine course. During the rotation of the head, its image data drive is to be varied in such a way that, despite the rotation and the resulting speeds and accelerations of the individual nozzles, a high-quality printing result is achieved.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Objektobject
22
Oberflächesurface
33
Abschnittsection
44
Tintenstrahlkopfink-jet head
4a4a
Tintenstrahlkopfink-jet head
4b4b
Tintenstrahlkopfink-jet head
55
Überlappungsbereichoverlap area
66
Überlappungsbereichoverlap area
77
erste Ausrichtungfirst orientation
7'7 '
zweite Ausrichtungsecond alignment
88th
Achseaxis
AA
erste Bahnfirst track
BB
zweite Bahnsecond track
A'A '
erste Richtungfirst direction
B'B '
zweite Richtungsecond direction
aa
erste Spurfirst track
bb
zweite Spursecond lane
a'a '
erste Spurkantefirst track edge
b'b '
zweite Spurkantesecond track edge
PP
PunktPoint
αα
Winkelangle

Claims (10)

Verfahren zum Bedrucken wenigstens eines Abschnitts (3) einer Oberfläche (2) eines Objekts (1), wobei ein Tintenstrahlkopf (4, 4a, 4b) durch eine Relativbewegung zwischen Tintenstrahlkopf (4, 4a, 4b) und Objekt (1) - entlang einer ersten Bahn (A) bewegt wird und dabei eine erste Spur (a) druckt, und - entlang einer zweiten Bahn (B) bewegt wird und dabei eine zweite Spur (b) druckt, dadurch gekennzeichnet,
dass sich eine erste Spurkante (a') der ersten Spur (a) und eine zweite Spurkante (b') der zweiten Spur (b) in einem Punkt (P) treffen und im Punkt (P) einen Winkel (α) zwischen etwa 1° und etwa 179° einschließen. Method for printing on at least a portion (3) of a surface (2) of an object (1), wherein an inkjet head (4, 4a, 4b) is moved by relative movement between the inkjet head (4, 4a, 4b) and the object (1) - Is moved along a first path (A) and thereby prints a first track (a), and is moved along a second path (B) and thereby prints a second track (b), characterized
in that a first track edge (a ') of the first track (a) and a second track edge (b') of the second track (b) meet at a point (P) and at point (P) an angle (α) between approximately 1 ° and about 179 °. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der Winkel (α) zwischen etwa 20° und etwa 70° oder zwischen etwa 110° und etwa 160°, bevorzugt bei etwa 45° oder bei etwa 135° liegt.Method according to claim 1,
characterized,
that the angle (α) is between about 20 ° and about 70 °, or between about 110 ° and about 160 °, preferably at about 45 ° or about 135 °. Verfahren nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet,
dass die erste Bahn (A) und die zweite Bahn (B) in einem Überlappbereich (5) überlappen.Method according to one of claims 1 or 2,
characterized,
that the first web overlap (A) and the second track (B) in an overlapping area (5). Verfahren nach Anspruch 3,
dadurch gekennzeichnet,
dass der Tintenstrahlkopf (4, 4a, 4b) in zumindest einem Teil des Überlappbereichs (5) nur auf der ersten Bahn (A) oder auf der zweiten Bahn (B) druckt, insbesondere dass der Tintenstrahlkopf (4, 4a, 4b) im gesamten Überlappbereich (5) auf der ersten Bahn (A) druckt und auf der zweiten Bahn (B) nicht druckt.Method according to claim 3,
characterized,
in that the inkjet head (4, 4a, 4b) prints in at least part of the overlap area (5) only on the first web (A) or on the second web (B), in particular that the inkjet head (4, 4a, 4b) throughout Overlap area (5) on the first web (A) prints and on the second web (B) does not print. Verfahren nach Anspruch 4,
dadurch gekennzeichnet,
dass die zweite Bahn (B) die erste Bahn (A) in dem Überlappbereich (5) kreuzt.Method according to claim 4,
characterized,
that the second web (B) the first track crosses (A) in the overlapping area (5). Verfahren nach Anspruch 5,
dadurch gekennzeichnet,
dass sich die zweite Bahn (b) und die erste Bahn (A) in mehreren Überlappbereichen (5, 6) kreuzen.Method according to claim 5,
characterized,
in that the second web (b) and the first web (A) intersect in a plurality of overlap regions (5, 6). Verfahren nach Anspruch 6,
dadurch gekennzeichnet,
dass sich der Abschnitt (3) im Wesentlichen aus Überlappbereichen (5, 6) zusammensetzt.Method according to claim 6,
characterized,
in that the section (3) consists essentially of overlapping areas (5, 6). Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass der Tintenstrahlkopf (4, 4a, 4b) auf der ersten Bahn (A) und/oder auf der zweiten Bahn (B) seine Ausrichtung (7a, 7b) zur jeweiligen Bahn (A, B) verändert.Method according to one of the preceding claims,
characterized,
in that the inkjet head (4, 4a, 4b) on the first web (A) and / or on the second web (B) alters its orientation (7a, 7b) to the respective web (A, B). Verfahren zum Bedrucken wenigstens eines Abschnitts (3) einer Oberfläche (2) eines Objekts (1), wobei ein Tintenstrahlkopf (4, 4a, 4b) - entlang einer ersten Bahn (A) bewegt wird und dabei eine erste Spur (a) druckt, und - entlang einer zweiten Bahn (B) bewegt wird und dabei eine zweite Spur (b) druckt, dadurch gekennzeichnet,.
dass der Tintenstrahlkopf (4, 4a, 4b) auf der ersten Bahn (A) und/oder auf der zweiten Bahn (B) seine Ausrichtung (7a, 7b) zur jeweiligen Bahn (A, B) verändert. Method for printing at least a portion (3) of a surface (2) of an object (1), wherein an ink-jet head (4, 4a, 4b) - Is moved along a first path (A) and thereby prints a first track (a), and is moved along a second path (B) and thereby prints a second track (b), characterized.
in that the inkjet head (4, 4a, 4b) on the first web (A) and / or on the second web (B) alters its orientation (7a, 7b) to the respective web (A, B). Verfahren nach Anspruch 9,
dadurch gekennzeichnet,
dass der Tintenstrahlkopf (4, 4a, 4b) während seiner Vorwärtsbewegung auf der ersten Bahn (A) und/oder auf der zweiten Bahn (B) um eine Achse (8) gedreht wird, insbesondere um eine zur Fläche ersten Spur (a) bzw. zweiten Spur (b) senkrechten Achse.Method according to claim 9,
characterized,
in that the inkjet head (4, 4a, 4b) is rotated about an axis (8) during its forward movement on the first path (A) and / or on the second path (B), in particular about a first track (a) or first surface (a) second track (b) vertical axis.
EP15178766.0A 2014-08-21 2015-07-29 Method for printing on a curved surface of an object with an ink jet head Active EP3002128B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014012395.2A DE102014012395A1 (en) 2014-08-21 2014-08-21 Method and apparatus for printing a curved surface of an object with an ink jet head

Publications (3)

Publication Number Publication Date
EP3002128A2 true EP3002128A2 (en) 2016-04-06
EP3002128A3 EP3002128A3 (en) 2016-10-12
EP3002128B1 EP3002128B1 (en) 2018-11-14

Family

ID=53835890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178766.0A Active EP3002128B1 (en) 2014-08-21 2015-07-29 Method for printing on a curved surface of an object with an ink jet head

Country Status (4)

Country Link
US (2) US9764573B2 (en)
EP (1) EP3002128B1 (en)
CN (2) CN109177519B (en)
DE (1) DE102014012395A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016014944A1 (en) * 2016-12-14 2018-06-14 Dürr Systems Ag Coating method and corresponding coating device
US11154892B2 (en) 2016-12-14 2021-10-26 Dürr Systems Ag Coating device for applying coating agent in a controlled manner
US11167308B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent on a component
US11167297B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent
US11167302B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Coating device and associated operating method
US11298717B2 (en) 2016-12-14 2022-04-12 Dürr Systems Ag Print head having a temperature-control device
US11338312B2 (en) 2016-12-14 2022-05-24 Dürr Systems Ag Print head and associated operating method
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014012395A1 (en) * 2014-08-21 2016-02-25 Heidelberger Druckmaschinen Ag Method and apparatus for printing a curved surface of an object with an ink jet head
WO2017152111A1 (en) * 2016-03-03 2017-09-08 Inx International Ink Co. Apparatus and method for printing on non-cylindrical surfaces having circular symmetry
DE102017114280B4 (en) * 2017-06-26 2024-04-11 Jörg R. Bauer Method for printing a curved surface and device for printing three-dimensional surfaces
CN108511899B (en) * 2018-04-02 2020-02-14 Oppo广东移动通信有限公司 Manufacturing method of printed antenna assembly, printed antenna assembly and electronic equipment
DE102018003096A1 (en) * 2018-04-17 2019-10-17 Burkhard Büstgens Drop-on-demand - coating of surfaces
DE102018210113B3 (en) * 2018-06-21 2019-07-11 Heidelberger Druckmaschinen Ag Ink-jet printing process for producing homogeneous-looking printed images on spherical bodies
CN110936735B (en) 2018-09-21 2021-12-14 海德堡印刷机械股份公司 Ink jet print head with variable spacing from substrate
JP6783284B2 (en) * 2018-10-17 2020-11-11 株式会社大気社 How to operate the automatic drawing system and the automatic drawing system
DE102018129651B4 (en) * 2018-11-26 2023-11-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for printing a surface in at least two printing phases
US10525749B1 (en) 2018-12-20 2020-01-07 The Gillette Company Llc Printing system having a print bed and a shielding panel
JP7218576B2 (en) * 2018-12-28 2023-02-07 ブラザー工業株式会社 3D printer
AT522737B1 (en) * 2019-07-08 2021-07-15 Franz Neuhofer Process for digital printing on a profile strip
DE102019004784A1 (en) 2019-07-09 2020-01-09 Daimler Ag Method for printing an image on a three-dimensional free-form surface, and device designed to carry out such a method
US20220347713A1 (en) * 2019-08-30 2022-11-03 Kyocera Corporation Coating device, coating film, and coating method
WO2021085501A1 (en) * 2019-10-28 2021-05-06 京セラ株式会社 Coating device and wiping method
FR3111586B1 (en) 2020-06-17 2022-08-12 Exel Ind Method and installation for applying coating product by means of a printing head
US11752778B2 (en) * 2020-07-29 2023-09-12 Seiko Epson Corporation Three-dimensional object printing apparatus and three-dimensional object printing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006371A1 (en) 2012-03-29 2012-07-05 Heidelberger Druckmaschinen Aktiengesellschaft Method for printing image on body i.e. tank of e.g. passenger car, involves generating three or higher-dimension raster matrix data to control inkjet printhead, and printing image with inkjet printhead using raster data
DE102012006370A1 (en) 2012-03-29 2013-10-02 Heidelberger Druckmaschinen Aktiengesellschaft System for printing on an object
DE102013016006A1 (en) 2013-09-26 2015-04-09 Heidelberger Druckmaschinen Ag Machine for inkjet printing of three-dimensional objects

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561398A (en) * 1969-06-19 1971-02-09 Programmed & Remote Syst Corp Spray painter
US4783667A (en) * 1987-07-17 1988-11-08 Ncr Canada Ltd - Ncr Canada Ltee Printing of angled and curved lines using thermal dot matrix printer
US5144330A (en) * 1990-12-21 1992-09-01 Bennett Charles G Method and apparatus for printing on pipe
JP3448951B2 (en) * 1993-08-25 2003-09-22 マツダ株式会社 Method of evaluating coating sagging in coating and coating control device
US6143122A (en) * 1998-09-15 2000-11-07 L&P Property Management Company Adhesive bonding of strings of pocketed coil springs
US6176961B1 (en) * 1998-09-15 2001-01-23 L&P Property Management Company Adhesive bonding of strings of pocketed coil springs
IL128521A (en) * 1999-02-14 2003-05-29 Aprion Digital Ltd Bi-axial staggered printing array
US20020134257A1 (en) * 2001-03-23 2002-09-26 Eastman Kodak Company Forming ink images on convex surfaces
DE10323412B4 (en) * 2003-05-23 2007-07-05 Bauer, Jörg R. Method and device for producing a component having a surface of predetermined appearance
US7625059B2 (en) * 2006-11-22 2009-12-01 Plastipak Packaging, Inc. Digital printing plastic containers
EP1857901B1 (en) * 2006-05-19 2009-07-22 Abb As Improved method for controlling a robot TCP
CN103909743B (en) * 2007-12-31 2017-01-11 埃克阿泰克有限责任公司 Apparatus and method for printing three dimensional articles
DK2303587T3 (en) * 2008-06-24 2012-12-17 Plastipak Packaging Inc Apparatus and method for printing on non-planar sales items
DE102009004877B4 (en) * 2009-01-16 2015-10-08 Jörg R. Bauer Component having a base body and a layer applied thereto by means of a digital coating system
DE102009004878A1 (en) * 2009-01-16 2010-07-29 Bauer, Jörg R. Process for coating, in particular painting, a surface and digital coating system
DE102010004496B4 (en) * 2010-01-12 2020-06-18 Hermann Müller Method for operating a device for coating and / or printing a workpiece
GB2483473A (en) * 2010-09-08 2012-03-14 Ten Cate Advanced Textiles Bv Print head module having staggered overlapping first and second printheads
EP2631077A1 (en) * 2012-02-21 2013-08-28 Dip Tech. Ltd. Printing system
CN104487609A (en) 2012-04-01 2015-04-01 盖尔创尼克斯有限公司 Printing method for printing and plating process
EP3025868A1 (en) * 2012-10-18 2016-06-01 Durst Phototechnik Digital Technology GmbH Two-dimensional method for inkjet printing with printhead alignment
US9086271B2 (en) * 2012-11-09 2015-07-21 Recognition Robotics, Inc. Industrial robot system having sensor assembly
JP6210674B2 (en) * 2012-11-21 2017-10-11 株式会社ミマキエンジニアリング Three-dimensional object printing system and three-dimensional object printing program
DE102014011301A1 (en) 2013-08-30 2014-12-18 Heidelberger Druckmaschinen Ag Method for generating a relative movement between a jet unit and a curved surface
US9533506B2 (en) * 2013-09-04 2017-01-03 Krones Ag Container handling machine for printing onto container
DE102014221103A1 (en) 2013-11-19 2014-12-18 Heidelberger Druckmaschinen Ag A method of producing an imprint on an object having a curved surface
DE102015200986A1 (en) * 2014-02-20 2015-08-20 Heidelberger Druckmaschinen Ag Intellectual Property Apparatus for printing and radiation treating a curved surface of an object
DE102015203798A1 (en) 2014-03-27 2015-10-01 Heidelberger Druckmaschinen Ag Apparatus for printing a curved surface of an object
DE102014012395A1 (en) * 2014-08-21 2016-02-25 Heidelberger Druckmaschinen Ag Method and apparatus for printing a curved surface of an object with an ink jet head
US9452616B1 (en) * 2015-05-29 2016-09-27 The Boeing Company System and method for printing an image on a surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006371A1 (en) 2012-03-29 2012-07-05 Heidelberger Druckmaschinen Aktiengesellschaft Method for printing image on body i.e. tank of e.g. passenger car, involves generating three or higher-dimension raster matrix data to control inkjet printhead, and printing image with inkjet printhead using raster data
DE102012006370A1 (en) 2012-03-29 2013-10-02 Heidelberger Druckmaschinen Aktiengesellschaft System for printing on an object
DE102013016006A1 (en) 2013-09-26 2015-04-09 Heidelberger Druckmaschinen Ag Machine for inkjet printing of three-dimensional objects

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016014944A1 (en) * 2016-12-14 2018-06-14 Dürr Systems Ag Coating method and corresponding coating device
WO2018108570A1 (en) 2016-12-14 2018-06-21 Dürr Systems Ag Coating method and corresponding coating device
EP3698881A1 (en) 2016-12-14 2020-08-26 Dürr Systems AG Coating method and coating apparatus for same
US11154892B2 (en) 2016-12-14 2021-10-26 Dürr Systems Ag Coating device for applying coating agent in a controlled manner
US11167308B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent on a component
US11167297B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent
US11167302B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Coating device and associated operating method
US11203030B2 (en) 2016-12-14 2021-12-21 Dürr Systems Ag Coating method and corresponding coating device
US11298717B2 (en) 2016-12-14 2022-04-12 Dürr Systems Ag Print head having a temperature-control device
US11338312B2 (en) 2016-12-14 2022-05-24 Dürr Systems Ag Print head and associated operating method
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11813630B2 (en) 2016-12-14 2023-11-14 Dürr Systems Ag Coating method and corresponding coating device
US11878317B2 (en) 2016-12-14 2024-01-23 Dürr Systems Ag Coating device with printhead storage
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method

Also Published As

Publication number Publication date
US20160052312A1 (en) 2016-02-25
US20170267002A1 (en) 2017-09-21
EP3002128B1 (en) 2018-11-14
US9764573B2 (en) 2017-09-19
CN109177519B (en) 2020-06-16
DE102014012395A1 (en) 2016-02-25
EP3002128A3 (en) 2016-10-12
CN109177519A (en) 2019-01-11
US10252552B2 (en) 2019-04-09
CN105383185B (en) 2018-11-30
CN105383185A (en) 2016-03-09

Similar Documents

Publication Publication Date Title
EP3002128B1 (en) Method for printing on a curved surface of an object with an ink jet head
EP2644392B1 (en) System for printing of an object
DE102015218035B4 (en) Three-dimensional object printer and method of operating a three-dimensional printer to compensate for radial velocity changes
DE102014221103A1 (en) A method of producing an imprint on an object having a curved surface
EP2825389B1 (en) Two-dimensional method for inkjet printing with printhead alignment
DE102015203798A1 (en) Apparatus for printing a curved surface of an object
DE102017114280B4 (en) Method for printing a curved surface and device for printing three-dimensional surfaces
DE102012005087A1 (en) Device for printing surfaces with multiple, movable print heads
DE102005006092A1 (en) Inkjet printer has two print head arrangements to permit printing on non-white media with the ratio of the separation of the nozzles in the two print- heads being a rational number that is greater than one
DE60219715T2 (en) Ink jet recording apparatus
EP1990206B1 (en) Method and device for embossing a component with two mutually inclined surface areas by means of a digital printing process
EP3445590B1 (en) Method and device for digitally printing on three-dimensional objects
EP3781406A1 (en) Drop-on-demand coating of surfaces
DE69727024T2 (en) printing system
DE60119261T2 (en) Color inkjet printing method and printer
EP2857207A1 (en) Method for generating a printed image comprised of sections
DE3501905A1 (en) Method of colour recording of information by means of ink jet
EP3547221B1 (en) Method for printing the surface of an object
EP3875280A1 (en) Method for digitally coating three-dimensional workpiece surfaces
WO2015180818A1 (en) Two-dimensional method comprising a scanning printer module and a media advancing system
DE102018206112B4 (en) Inkjet printer
AT522737B1 (en) Process for digital printing on a profile strip
DE102020134088A1 (en) printing device
AT520096B1 (en) Method for producing a window or door profile
WO2023213452A1 (en) Printing machine having at least one printing head

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: B41J 3/407 20060101AFI20160908BHEP

Ipc: B41J 25/00 20060101ALI20160908BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170412

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180626

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1064338

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015006838

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HEIDELBERGER DRUCKMASCHINEN AG

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181114

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190314

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190214

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190214

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190215

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015006838

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190729

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190729

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20200725

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150729

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1064338

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200729

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230427

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230727

Year of fee payment: 9

Ref country code: GB

Payment date: 20230720

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230721

Year of fee payment: 9

Ref country code: DE

Payment date: 20230731

Year of fee payment: 9