EP2740600A1 - Procédé d'impression de la surface intérieure d'un objet à imprimer au moyen d'une imprimante à tampon - Google Patents

Procédé d'impression de la surface intérieure d'un objet à imprimer au moyen d'une imprimante à tampon Download PDF

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Publication number
EP2740600A1
EP2740600A1 EP20120195479 EP12195479A EP2740600A1 EP 2740600 A1 EP2740600 A1 EP 2740600A1 EP 20120195479 EP20120195479 EP 20120195479 EP 12195479 A EP12195479 A EP 12195479A EP 2740600 A1 EP2740600 A1 EP 2740600A1
Authority
EP
European Patent Office
Prior art keywords
pad
printing
printed
axis
printing machine
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
EP20120195479
Other languages
German (de)
English (en)
Other versions
EP2740600B1 (fr
Inventor
Rudolf Kälin
Herbert Schatt
Alfred Weibel
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.)
Teca Print AG
Original Assignee
Teca Print 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 Teca Print AG filed Critical Teca Print AG
Priority to EP12195479.6A priority Critical patent/EP2740600B1/fr
Publication of EP2740600A1 publication Critical patent/EP2740600A1/fr
Application granted granted Critical
Publication of EP2740600B1 publication Critical patent/EP2740600B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001—Pad printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/006—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/50—Printing presses for particular purposes
    • B41P2217/53—Printing presses for particular purposes for printing on the interior of hollow articles

Definitions

  • the present invention relates to a method for printing an inner surface of an object to be printed by means of a pad printing machine and a pad printing machine for carrying out such a method.
  • a pad printing machine for carrying out such a method.
  • Pad printing machines are known in the prior art in numerous designs and are used for printing differently shaped objects. For this purpose, a print image is taken from a cliché by means of a printing pad and then transferred to an object to be printed. By forming the printing pad from an elastic material, it is also possible to print on uneven surfaces.
  • a method of printing the inner surfaces of hollow cylindrical Items is in the US 4,667,594 described.
  • a pressure pad is introduced with a cylindrically shaped outer surface in the interior of, for example, a tube.
  • the printing pad is then pressed together along its longitudinal axis from two opposite sides by means of two pressure plates, a radial expansion of the printing pad is achieved.
  • the outer surface of the printing pad is thereby brought circumferentially in contact with the inner surface of the tube, and transferred the printed image to the inner surface of the tube.
  • a disadvantage of the in the US 4,667,594 disclosed printing method is that so that only cylindrically shaped inner surfaces can be printed, the inner radius of each is slightly larger than the outer radius of the pressure pad. Inner surfaces with larger inner radii as well as inner surfaces, which deviate strongly from the cylindrical form, can not be printed with this printing process.
  • a method is proposed, as indicated in claim 1.
  • a tampon printing machine for carrying out this method is specified in claim 8.
  • Advantageous embodiments of the invention are specified in the dependent claims.
  • the outer surface of the print pad is unrolled on an inner surface of the object to be printed and / or an inner surface of the object to be printed is unrolled on the outer surface of the print pad.
  • the inner surface can have both concave and convex areas, which are both printable by the specified method.
  • the inner surface of the object to be imprinted is a concavely curved and, in particular, a substantially cylindrical inner surface.
  • the inner surface extends over an angular range of 360 ° and is in particular designed to be circumferentially closed.
  • the inner surface does not necessarily have to extend circumferentially over an angular range of 360 °. In general, however, it is then an inner surface, if it extends at least over an angular range of 180 ° or more.
  • the object to be printed may in particular be a ring-shaped or tubular article.
  • it is a finger ring, which is in particular made of a transparent material, such as glass.
  • the finger ring does not have to be closed circumferentially.
  • the object to be printed is advantageously held in an object holder, which has a substantially cylindrical outer side.
  • the object holder thus serves, in particular, to provide a cylindrical outer side independently of the configuration of the object to be printed, in order to facilitate unrolling or holding the object to be printed in a holding device.
  • the object holder can serve to provide a concentric arrangement of the object to be printed and in particular to ensure its inner surface relative to the cylindrical outer side of the object holder.
  • the object to be printed is rolled laterally guided in a rolling track when transferring the printed image.
  • the printing pad is usually moved relative to the object to be printed in a direction which is substantially perpendicular to a roll axis, which is given by the rolling of the object to be printed in the rolling track.
  • the printing pad has a longitudinal central axis and, when transferring the printed image onto the object to be printed, essentially executes a circular movement about an axis of rotation which extends parallel to but spaced from this longitudinal central axis.
  • the radius of this circular movement is usually chosen such that it is equal to or slightly larger than the radius, which results from a subtraction of the inner radius of the inner surface of the object to be printed minus the outer radius of the pressure pad.
  • the outer surface of the printing pad when taking the printed image, is unrolled on the plate and / or the plate is unrolled on the outer surface of the printing pad.
  • the length of the roll-off is advantageously chosen so that it corresponds to the circumferential length of the pressure pad.
  • the print pad is then moved relative to the object to be printed in a direction opposite to the first direction second direction, so that the print image is transmitted again along a straight line on the object to be printed.
  • the inner surface of the object to be printed can also be printed with printed images which are formed longer than the circumferential length of the printing pad. It is thus possible in particular a printing of the inner surface with a printed image, which is the same length as the circumferential length of the inner surface.
  • the present invention also provides a pad printing machine which is adapted to carry out such a method.
  • the pad printing machine has a cliché and a printing pad with an outer surface, which serves to receive a printed image from the cliche and then transferring this print image to an object to be printed.
  • the pad printing machine also has means to allow a guided unrolling of the outer surface of the printing pad on an inner surface of the object to be printed and / or an inner surface of the object to be printed on the outer surface of the printing pad.
  • the pad printing machine also has a printing pad carrier, with which the printing pad is connected such that the printing pad is freely rotatable relative to the printing pad carrier about an axis of rotation.
  • This axis of rotation can in particular correspond to a longitudinal central axis of the printing pad.
  • the pad printing machine has a holding device with a base unit and a holding device connected to the base unit, which serves for holding an object to be printed, and which is freely rotatable about an axis of rotation relative to the base unit.
  • the base unit is usually immovable relative to a machine frame of the pad printing machine.
  • the printing pad or the holding device is thus rotatable as smoothly as possible, so that during printing, the printing pad on the inner surface or the inner surface can roll on the printing pad, without in particular mutual sliding movements occur. This ensures a clean unrolling of the printing pad on the inner surface.
  • one or more ball bearings may be present, which are arranged between the printing pad and printing pad carrier or between the holding device and the base unit.
  • the pad printing machine has a linear unit on which either the printing pad or a holding device is mounted for holding an object to be printed, wherein the printing pad is linearly displaceable by means of the linear unit relative to the holding device in a direction which extends substantially parallel to the axis of rotation.
  • the linear unit may in particular be a Act linear motor. But it is also a pneumatic operation of the linear unit conceivable.
  • the printing pad is advantageously rotationally symmetrical. Even more advantageously, the outer surface of the printing pad is barrel-shaped. It can even be formed substantially cylindrical. In a barrel-shaped configuration, the outer surface may, in deviation from a purely cylindrical configuration, in particular also be curved circumferentially outwards along the longitudinal central axis of the pressure pad.
  • the printing pad has a Shore 00 hardness of 75 to 95, more preferably 80 to 90, and most preferably about 85. In particular, for the printing of conical and / or wavy inner surfaces of the printing pad but can also have a Shore 00 hardness in the range between 70 and 80. The printing pad then adapts better to the inner surface due to its flexibility.
  • the pad printing machine may have a rolling track, within which an object holder with a substantially cylindrical outer side during the transfer of the print image on an object held in the object holder to be printed object is unrolled.
  • the rolling track is designed in particular as a profile strip with a U-shaped cross-section.
  • the printing pad has a longitudinal center axis
  • the pad printing machine has a pad carrier on which the printing pad is attached.
  • a means for the guided rolling of the printing pad can then also be rotatable relative to the pad carrier about an axis of rotation which extends substantially parallel, but spaced from the longitudinal center axis of the printing pad.
  • a rotary member in particular a rotary cylinder, arranged, which is rotatable about an axis of rotation relative to the pad carrier, and on which the printing pad is mounted with respect to its longitudinal central axis eccentric to this axis of rotation.
  • the pad printing machine has a first drive unit for moving the print pad in a substantially horizontal direction and a second drive unit for moving the print pad in a substantially vertical direction move.
  • the first and / or the second drive unit may in particular comprise a servomotor.
  • the first drive unit serves, in particular, to displace the printing pad linearly along a y-axis of the pad printing machine
  • the second drive unit serves, in particular, to move the printing pad linearly along a z-axis of the pad printing machine that is substantially perpendicular to the y-axis.
  • the pad printing machine can then also have a motion control unit, which is designed to simultaneously drive the first drive unit and the second drive unit such that the resulting movement of the pressure pad essentially represents a movement along a circular line.
  • the first and the second drive unit are thus preferably controlled by the motion control unit in such a way that the pressure pad is moved along the y or the z axis according to a speed function which corresponds to a sine or a cosine function. If the pad printing machine has a linear unit, this preferably serves to move the printing pad along an x-axis which is substantially perpendicular to the y-axis and the z-axis.
  • FIGS. 1 to 7 a tampon printing machine is shown, which is suitable for carrying out the method according to a first embodiment of the invention.
  • the pad printing machine on a machine frame 10, which has a substantially U-shape, the opening points in the horizontal direction.
  • the upper leg of this U-shape forms an arm 101.
  • a display 11 is arranged, which serves for displaying operating conditions, machine parameters, etc.
  • a plurality of input elements 12 are provided on the arm 101, which serve for setting and operating the pad printing machine by the user.
  • a slide 50 is mounted, which serves to support an object to be printed.
  • the slide 50 is immovable relative to the machine frame 10.
  • a plate carrier 20 is arranged with a cliché mounted thereon 21 and on the underside of the upper leg a displaceable in the horizontal direction along the arm 101 tampon carrier 43 is attached.
  • the position of the plate 21 on the plate carrier 20 is manually adjustable.
  • the pad printing machine also has a paint pot 30 arranged in a region close to the printing plate 21.
  • the pad carrier 43 to which a printing pad 46 is attached, via a linear unit 42, a rail 41 and a vertical displacement unit 40 to the arm 101 is connected.
  • the vertical displacement unit 40 is held in a rail formed on the underside of the arm 101, not visible in the drawings, which allows the displacement unit 40 and thus the printing pad 46 to be displaced in the horizontal direction.
  • This horizontal direction, in which the vertical displacement unit 40 is displaceable along the arm 101, is hereinafter referred to as the y-axis 71 of the pad printing machine (see FIG. 1 ).
  • the vertical displacement unit 40 has the shape of a bellows and is in the vertical direction by accordingly provided, the skilled person well known means extender or shortened, so that the vertical displacement unit 40 allows movement of the printing pad 46 in the vertical direction.
  • This vertical direction which is referred to hereinafter as the z-axis 72 of the pad printing machine, is perpendicular to the y-axis 71.
  • the printing pad 46 is thereby basically linearly displaceable at least in two directions, namely along the arm 101 in the horizontal direction (y-axis 71 ) and substantially perpendicular thereto in the vertical direction (z-axis 72).
  • the pad printing machine advantageously has corresponding drives, in particular servomotors.
  • the rail 41 is fixedly attached to the underside of the vertical adjustment unit 40.
  • a linear unit 42 is movably mounted such that it is manually displaceable relative to the rail 41 in a direction substantially perpendicular to the vertical direction of the z-axis 72 and the through the arm 101 predetermined horizontal direction of the y-axis 71 is.
  • This direction, in which the linear unit 42 is displaceable relative to the rail 41 extends along the x-axis 70 of the pad printing machine defined below.
  • a scale is attached to the rail 41. It can also be provided locking elements, such as screws, which allow fixing of the linear unit 42 along the x-axis 70 and the underside of the rail 41.
  • the linear unit 42 has a housing 421 which is displaceably mounted on the rail 41 along the x-axis 70 and has a displacement element 422 held therein (see, for example, US Pat Figures 3 and 5 ) to which the pad carrier 43 and thus the printing pad 46 are attached.
  • the displacement member 422 is movable relative to the housing 421 such that linear displacement of the attached tampon carrier 43 and thus the printing pad 46 in the same horizontal direction is enabled, in which the rail 41 extends.
  • an x-axis 70 of the pad printing machine is defined (see FIG. 1 ).
  • the linear unit 42 has a drive, in particular a linear motor. It could alternatively also be a pneumatic drive.
  • the printing pad 46 is thus in the present embodiment by means of corresponding drives within the three-dimensional space extending between the two legs of the U-shaped configuration of the machine frame 10 anywhere along the x, y, and z axes 70, 71, 72 positionable.
  • the tampon carrier 43 fixed on the underside of the displacement element 422 serves to hold the pressure pad 46 via a round rod 45.
  • the tampon carrier 43 has a continuous receiving opening extending along the x-axis 70 in a lower region for receiving the round rod 45 serves.
  • corresponding locking means may be provided at the round rod 45 to allow a locking of the round rod 45 in this receiving opening.
  • the round rod 45 held therein extends outwardly along the x-axis 70.
  • a printing pad 46 is attached to the round rod 45, in particular in the area of a free end of the round rod 45.
  • the printing pad 46 generally has the shape of a barrel with a peripheral outer surface curved slightly outwards in the longitudinal direction.
  • the barrel-shaped configuration of the outer surface of the printing pad 46 defines a longitudinal central axis 461 of the printing pad 46, which extends along the x-axis 70 of the pad printing machine.
  • the printing pad 46 is mounted on the round rod 45 such that it is freely rotatable relative to this about its longitudinal central axis 461. Between printing pad 46 and round rod 45 two not visible in the drawings ball bearings are provided for this purpose. Of course, the printing pad 46 could also be rotationally fixed to the round rod 45, if for the round rod 45 is rotatably connected about its longitudinal axis with the pad carrier 43. One or more ball bearings could then be provided correspondingly between round rod 45 and pad carrier 43.
  • the printing pad 46 is harder in comparison to the printing pads commonly used in pad printing methods and has a Shore A hardness of 75 or more, especially about 90. In particular, for the printing of conical and / or corrugated inner surfaces of the printing pad 46 may also be formed softer.
  • the slide 50 here has a flat, horizontal top surface on which a roll-off 51 is mounted.
  • the rolling track 51 is formed as a cross-sectionally U-shaped rail, which extends along the y-axis 71 of the pad printing machine.
  • the two lateral limbs of the U-shaped profile rail serve as lateral guides of the object 61 to be imprinted in an object holder 60 during printing (see FIG FIG. 4 ).
  • the object holder 60 has in particular a cylindrical outer side, which is slightly shorter in the direction of its longitudinal center axis compared to the inner spacing of the lateral guides of the rolling track 51.
  • the object holder 60 can be guided laterally roll in the roll-off 51.
  • the object holder 60 is separable into two separate shells to allow insertion of the object 61 to be printed in the object holder 60.
  • the object 61 to be printed is a transparent, in particular made of glass, finger ring.
  • the inner surface of the finger ring to be printed in order to cause an optical effect on its outside due to the transparency of the finger ring.
  • the finger ring to be printed has a substantially cylindrical inner surface and an outer surface deviating from a cylindrical shape.
  • the object holder 60 serves to allow a laterally guided rolling of the finger ring in the rolling track 51 around the longitudinal central axis defined by its inner surface.
  • ink is usually transferred from the ink pot 30 to the plate 21 by means of a doctor blade (not visible in the figures) in order to form a printed image 22 there.
  • the printing pad 46 is lowered by the vertical adjustment unit 40 along the z-axis 72 downwards (arrow a) for ink absorption until it rests with its outer surface on the plate 21.
  • the vertical adjustment unit 40 is then moved forward along the y-axis 71 (arrow b), so that the printing pad 46 rolls on the printed image 22 (arrow c) and this is recorded by means of the outer surface of the printing pad 46.
  • the printing pad 46 is then raised along the z-axis 72 (arrow d).
  • the vertical adjustment unit 40 is then displaced along the y-axis 71 (arrow e, FIG. 4 ), that the printing pad 46 occupies a position directly in the region of the longitudinal center axis defined by the inner surface of the object 61 to be printed, or in particular somewhat below it.
  • the printing pad 46 is shown by extending the sliding element 422 from the housing 421 of the linear unit 42, along the x-axis 70 in the limited by the inner surface of the object to be printed 61 interior space (arrow f).
  • the printing pad 46 is finally lowered by the vertical adjustment unit 42 (arrow g, FIG. FIG. 6 ) until it rests on the inner surface of the object 61 to be printed.
  • the vertical adjustment unit 42 is then moved during the actual printing process along the y-axis 71 (arrow h, FIG. 7 ) that the object holder 60 with the object 61 to be imprinted therein is guided laterally in the rolling-down path 51 (arrow i, FIG. FIG. 6 ).
  • the printing pad 46 thereby performs a rotation about its longitudinal center axis 461 and thereby transmits the printed image from its outer surface to the inner surface of the object 61 to be printed.
  • the longitudinal center axis 461 of the printing pad 46 forms the roll axis of the rolling movement.
  • a pad printing machine according to a second embodiment of the invention is in the FIGS. 8 to 12 and a pad printing machine according to a third embodiment of the invention is shown in FIGS FIGS. 13 and 14 shown.
  • Equal or similar elements of the tampon printing machines of the second and third embodiments will be denoted below by the same reference numerals as the corresponding elements in the FIGS. 1 to 7 shown first embodiment.
  • the in the FIGS. 8 to 12 differs from the first embodiment, inter alia, in that the pad carrier 43 is attached directly to a carriage 47 connected to the rail 41. There is thus no linear unit between the rail 41 and the pad carrier 43.
  • a holding device provided with a linear unit 53 for holding the object holder 60 with the object 61 to be printed is provided here.
  • the holding device is attached to a housing 531 of the linear unit 53 fixedly mounted on the slide 50.
  • the linear unit 53 which may be operated pneumatically, for example, but is preferably designed as a linear motor, has a relative to the housing 531 linearly displaceable along the x-axis 70 sliding element 532, at the end of a three-point gripper 52 is attached.
  • the three-point gripper 52 has three holding jaws distributed uniformly along a circumferential direction and forms a holding device for holding the object holder 60.
  • the object 61 to be imprinted in the object holder 60 is moved along the x-axis 70 relative to the slide 50 and to the Machine frame 10 displaced.
  • the pad printing machine here on no roll-off, but a rotary cylinder 44 (see FIG. 9 ), which is arranged between the pad carrier 43 and the round rod 45 and is displaceable by means of a corresponding drive in a rotational movement.
  • the rotary cylinder 44 has a cylindrical outer surface and two flat, mutually parallel end surfaces, of which the first is connected to the pad carrier 43.
  • At the second end surface of the round rod 45 is mounted eccentrically, so that a Rotary movement of the rotary cylinder 44 about its longitudinal central axis leads to a circular movement of the printing pad 46 about an axis of rotation, which extends parallel, but spaced from the longitudinal central axis 461 of the printing pad 46.
  • the recording of the printed image 22 from the plate 21 is analogous to the first embodiment.
  • the printing pad is subsequently displaced along the y-axis 71 toward the object 61 to be printed (arrow j, FIG. 9 ).
  • the displacement element 532 of the linear unit 53 is then moved along the x-axis 70 in accordance with FIG FIG. 10 shown arrow k out of the housing 531.
  • the printing pad 46 is first lowered according to arrow 1 until it rests on the inner surface of the object 61 to be printed.
  • the rotary cylinder 44 is then placed in a rotational movement about its longitudinal central axis (arrow m), so that the round rod 45 and thus also the printing pad 46 each perform a circular movement about the longitudinal center axis of the rotary cylinder 44 (arrow n).
  • the outer surface of the printing pad 46 rolls thereby guided on the inner surface of the rotatably fixed object to be printed 61 and transmits the printed image.
  • the in the FIGS. 13 and 14 differs from the second embodiment of FIGS. 8 to 12 in that the round rod 45 is mounted directly on the printing pad carrier 43 and thus the rotary cylinder 44 is omitted in comparison to the second embodiment.
  • the ink absorption takes place analogously to the first and the second embodiment.
  • the printing pad 46 is displaced along the y-axis 71 toward the object 61 to be printed (arrow o, FIG. 13 ).
  • the object 61 to be printed is then displaced along the x-axis 70 so far that it laterally surrounds the printing pad 46 ( FIG. 14 ).
  • the printing pad 46 is first lowered onto the inner surface of the object to be printed (61) (arrow p). For the guided rolling on the inner surface of the object to be printed 61, the printing pad 46 is then placed in a circular motion about a roll axis, which is parallel, but spaced from the longitudinal center axis 461 of the Pressure pads 46 extends (arrows q and r).
  • the pad printing machine has a not visible in the drawings motion control unit, which drive units for moving the vertical adjustment unit 40 along the y-axis 71 and for extending the vertical adjustment unit 40 along the z-axis 72nd at the same time controls such that a circular movement of the printing pad 46 results around the defined by the inner surface of the object to be printed 61 longitudinal central axis.
  • the two linear movements along the y-axis 71 and the z-axis 72 are thus superimposed by means of the motion control unit such that a rotational movement results.
  • the two drive units for the movements along the y-axis 71 and the z-axis 72 are thereby controlled by the motion control unit in particular such that the linear movements are performed according to a speed function corresponding to a sine or a cosine function.
  • the printing pad can, for example, also be fixed relative to the machine frame and the object to be printed is set in a circular movement about the longitudinal central axis of the printing pad. Between the object to be printed and the slide could then be arranged a rotary cylinder, to which the object to be printed is mounted eccentrically.
  • the printing pad could even be attached to the machine frame in a rotationally fixed manner if, correspondingly, the object to be imprinted is freely rotatable about an axis extending along the x-axis.
  • a variety of other modifications is conceivable.

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EP12195479.6A 2012-12-04 2012-12-04 Procédé d'impression de la surface intérieure d'un objet à imprimer au moyen d'une imprimante à tampon Active EP2740600B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12195479.6A EP2740600B1 (fr) 2012-12-04 2012-12-04 Procédé d'impression de la surface intérieure d'un objet à imprimer au moyen d'une imprimante à tampon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12195479.6A EP2740600B1 (fr) 2012-12-04 2012-12-04 Procédé d'impression de la surface intérieure d'un objet à imprimer au moyen d'une imprimante à tampon

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EP2740600A1 true EP2740600A1 (fr) 2014-06-11
EP2740600B1 EP2740600B1 (fr) 2015-09-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020005122A1 (de) 2020-08-20 2022-02-24 Alexander Mühlhäußer Druckvorrichtung und Verfahren zum Bedrucken einer Innenwand einer in einem Werkstück vorgesehenen Lochung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2265545A1 (fr) * 1974-03-26 1975-10-24 Villeroy & Boch
US4667594A (en) 1985-04-29 1987-05-26 Eddy Albert W Method and apparatus for printing the interior of hollow articles
DE10242489A1 (de) * 2002-09-12 2004-03-25 Mühlhäußer, Alexander Druckmaschine zum Bedrucken von Innenkonturen insbesondere Bohrungen
US20080041253A1 (en) * 2006-08-16 2008-02-21 Bong-Sung Seo Spacer-printing apparatus and method of printing a spacer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2265545A1 (fr) * 1974-03-26 1975-10-24 Villeroy & Boch
US4667594A (en) 1985-04-29 1987-05-26 Eddy Albert W Method and apparatus for printing the interior of hollow articles
DE10242489A1 (de) * 2002-09-12 2004-03-25 Mühlhäußer, Alexander Druckmaschine zum Bedrucken von Innenkonturen insbesondere Bohrungen
US20080041253A1 (en) * 2006-08-16 2008-02-21 Bong-Sung Seo Spacer-printing apparatus and method of printing a spacer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020005122A1 (de) 2020-08-20 2022-02-24 Alexander Mühlhäußer Druckvorrichtung und Verfahren zum Bedrucken einer Innenwand einer in einem Werkstück vorgesehenen Lochung
DE102020005122B4 (de) 2020-08-20 2023-04-13 Alexander Mühlhäußer Druckvorrichtung und Verfahren zum Bedrucken einer Innenwand einer in einem Werkstück vorgesehenen Lochung

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