EP0712724A1 - Procédé et dispositif pour l'impression au tampon - Google Patents

Procédé et dispositif pour l'impression au tampon Download PDF

Info

Publication number
EP0712724A1
EP0712724A1 EP95810718A EP95810718A EP0712724A1 EP 0712724 A1 EP0712724 A1 EP 0712724A1 EP 95810718 A EP95810718 A EP 95810718A EP 95810718 A EP95810718 A EP 95810718A EP 0712724 A1 EP0712724 A1 EP 0712724A1
Authority
EP
European Patent Office
Prior art keywords
container
edge
cliché
rotated
drive
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
EP95810718A
Other languages
German (de)
English (en)
Other versions
EP0712724B1 (fr
Inventor
Louis Bachmann
Fredi Studer
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
Publication of EP0712724A1 publication Critical patent/EP0712724A1/fr
Application granted granted Critical
Publication of EP0712724B1 publication Critical patent/EP0712724B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a method for pad printing, in which a cliché is inked with a container holding a liquid medium and printed or partial images are transferred to a workpiece with a pad.
  • the invention also relates to a device for pad printing, with a container which is open at least on one side and has an edge on its open side which rests on a cliché, the cliché being colored and the container executing a movement relative to one another.
  • a method and a device of this type are known for example from WO 93/11943.
  • this device during the relative movement between the container and the cliché, the depressions in the cliché surface filled up by the medium in the container and at the same time scraped off excess medium with the edge of the container.
  • the edge of the container is pressed onto the top of the cliché using a pressing device.
  • This device has proven itself in practice and enables the production of clean prints on different workpieces with high performance.
  • a method is also known in which a hollow profile section corresponding to the container is rotated by a predetermined angular range after each coloring process. This twisting is intended to achieve an even flow of color from the hollow profile section. Such uneven reflow can occur if the color in the hollow profile section is strongly inclined due to the relative movement between the cliché and the hollow profile section during inking and doctoring the surface of the paint and, especially with a low degree of filling, only covers part of the base area of the hollow profile section .
  • the hollow profile section is rotated according to this method for faster leveling of the ink, which is to be achieved in the pad printing machine according to DE-A-43 16 294 by means of a perforated disc inserted into the container.
  • This drive device is by means of friction with the hollow profile section coupled and releasably connected to this.
  • the invention has for its object to improve a method and an apparatus of the type mentioned in such a way that even with the problematic media mentioned, clean and satisfactory printing is ensured even after a long period of operation.
  • the object is achieved in a generic method in that at least one edge of the container resting on the cliché is rotated substantially in its circumferential direction thereon during a relative movement between the container and the cliché.
  • the edge of the container is rotated essentially in its circumferential direction. Even after a long period of operation, there are hardly any traces of sanding on the cliché, which may be due to the fact that the edge moving on the cliché circumferentially cuts off the printing ink to a certain extent.
  • the edge is preferably rotated in only one circumferential direction.
  • the rotation can take place continuously or at intervals.
  • the rotation in the circumferential direction can be less than 360 ° and / or alternating, so that the pot can be connected to a reservoir for printing ink or thinner liquid via flexible lines.
  • the device according to the invention is characterized in that the container is connected to a drive with which at least the edge of the container can be rotated in its circumferential direction with substantially constant contact pressure during said relative movement, the drive forming a unit with a contact pressure device the top of the container preferably engages approximately centrally on this. This enables particularly simple handling, since the circumference of the container is freely accessible. Lateral lateral forces acting on the container are also avoided.
  • FIG. 1 shows a cliché plate 9 with an essentially flat upper side 10, on which a container 1 rests.
  • the cliché plate 9 is moved linearly back and forth in its plane according to the double arrow 35 in FIG.
  • the medium 3 located in the container 1 is here on the top 10 of the Cliché plate 9 applied and doctored with a squeegee edge 2.
  • the container 1 is pressed onto the upper side 10 of the plate 9.
  • a pressing device 37 fixed to the frame is provided above the container 1, which is connected to the container 1 at a preferably articulated connection point 7 in the middle of an upper side 33 and below this.
  • the pressing device 37 has a flange piece 12 which is provided with two threaded bores 13 for fastening it to a frame (not shown here).
  • the flange piece 12 forms a cylinder housing with a pressure chamber 38, in which inserts 14 and 16 are arranged at a distance from one another and receive a piston rod 11 that can be displaced in a longitudinal direction.
  • a hexagon head 8 is attached, which is non-rotatably inserted into a corresponding recess 42 of a connecting part 39.
  • a blind bore 40 is machined into the upper end of the piston rod 11, into which a compression spring 17 engages, which is supported at its upper end on a shoulder of a shaft 19.
  • the rod, which is displaceably guided in the inserts 16 and 14, is pressed down by pneumatic pressure and the compression spring 17 and thus presses the container 1 against the top 10 of the plate 9 via the connection 7.
  • the piston rod 11 is rotatable about its longitudinal axis A, which is preferably the axis of rotation of the container 1, by means of a drive 27. With such a rotation, the container 1 is inevitably rotated in the same sense.
  • the drive 27 has a toothed rack 23 which can be moved in the directions of the double arrow 41 by means of a cylinder-piston unit 26.
  • the rack 23 is in engagement with a toothing 22 of a gear 21.
  • the gearwheel 21 is connected in a rotationally fixed manner to the shaft 19 in one direction by means of a freewheel 43 and is connected in a rotationally fixed manner to the piston rod 11 via a coupling 18 and is displaceable in the longitudinal direction.
  • the back and forth movements of the rack 23 in the directions of the double arrow 41 are carried out by corresponding movements of the piston 25, which is connected to the rack 23 via a web 24.
  • the container 1 according to FIG. 4 is rotated about its axis of rotation A in the direction of the arrow 36.
  • the freewheel 43 is replaced by a connection that is non-rotatable in both directions.
  • the piston rod 11 can be pulled out of the container 1 normally to the surface 10.
  • a piston 15 is fastened to the rod 11, which can be raised in the position according to FIGS. 1 and 2 by increasing the pressure in the interior 38a via a connection 30 and displacing pressure medium from the space 38b via the connection 29. If the piston rod 11 is raised with the driver 8, the container can be moved on the cliché. Conversely, when mounting a cleaned container 1, it is positioned on the plate with the rod 11 raised and pressed onto the plate 9 again by means of the piston rod 11. The exchange and cleaning of the container 1 can thus be done very easily, quickly and cleanly.
  • the rack is of a correspondingly long design, a plurality of containers 1 arranged next to one another can be rotated simultaneously by means of the rack 23. A single drive 27 is then sufficient for rotating several containers 1.
  • FIGS. 5 and 6 differs from the embodiment mentioned above with regard to the drive, which here likewise has a piston 42 which is movable hydraulically or pneumatically in the directions of the double arrow 41 in a housing 40. With the piston 42 two racks 43 and 44 are connected, which mesh with an upper freewheel 45 or a lower freewheel 46. The two freewheels 45 and 46 lock in different Directions of rotation, so that when the piston 42 moves back and forth, the rod 11 and thus the container 1 (not shown here) is rotated alternately in one direction or the other via a shaft 47 and two gear wheels 48 and 49.
  • a version is also possible in which the rotation is alternating, but in one direction of rotation by a larger angle or faster than in the other direction of rotation.
  • the rod 11 rotates the container 1 about a central axis.
  • this axis is laterally offset.
  • the container 1 is then still rotated in addition to the translational relative movement to the cliché about an axis running vertically to the cliché.

Landscapes

  • Printing Methods (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Coating Apparatus (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Electronic Switches (AREA)
  • Rotary Presses (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP95810718A 1994-11-18 1995-11-17 Procédé et dispositif pour l'impression au tampon Expired - Lifetime EP0712724B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH03481/94A CH688545A5 (de) 1994-11-18 1994-11-18 Verfahren und Vorrichtung fuer den Tampondruck.
CH3481/94 1994-11-18

Publications (2)

Publication Number Publication Date
EP0712724A1 true EP0712724A1 (fr) 1996-05-22
EP0712724B1 EP0712724B1 (fr) 1997-10-08

Family

ID=4256915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810718A Expired - Lifetime EP0712724B1 (fr) 1994-11-18 1995-11-17 Procédé et dispositif pour l'impression au tampon

Country Status (11)

Country Link
US (1) US5669301A (fr)
EP (1) EP0712724B1 (fr)
JP (1) JP4181227B2 (fr)
KR (1) KR960017151A (fr)
AT (1) ATE158987T1 (fr)
CH (1) CH688545A5 (fr)
DE (1) DE59500769D1 (fr)
DK (1) DK0712724T3 (fr)
ES (1) ES2109799T3 (fr)
HU (1) HU218683B (fr)
PL (1) PL180121B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5875716A (en) * 1996-12-05 1999-03-02 Markem Corporation Rotating ink cup
DE19921702A1 (de) * 1999-05-12 2000-11-23 Braun Gmbh Verfahren zum Betreiben einer Tampondruckvorrichtung sowie Tampondruckvorrichtung
DE10111802A1 (de) * 2001-03-12 2002-09-26 Siemens Ag Vorrichtung zur Veränderung der Ortsablage eines Farbtopfes auf einem zugeordneten Klischee im Farbgebersystem einer Tampondruckmaschine und Tampondruckmaschine mit einer solchen Vorrichtung
DE102010036700A1 (de) * 2010-07-28 2012-02-02 Siegfried Burgemeister Farbbehälter für Tampondruckmaschine, Reinigungsvorrichtung für Farbbehälter und Tampondruckmaschine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2147997A (en) * 1996-04-03 1997-10-29 Teca-Print Ag Inking-pad printing press
DE102012209500A1 (de) 2012-06-05 2013-12-05 Ball Packaging Europe Gmbh Verfahren zur Herstellung eines bedruckten Dosendeckels und bedruckter Dosendeckel
DE102017112198A1 (de) 2017-06-02 2018-12-06 Ardagh Metal Beverage Europe Gmbh Verfahren und Vorrichtung zur Herstellung eines bedruckten Dosendeckels
EP3756890B1 (fr) 2019-06-28 2023-08-23 Teca-Print AG Procédé et dispositif de mesure de la viscosité de l'encre lors de la tampographie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011943A1 (fr) * 1991-12-09 1993-06-24 Louis Bachmann Machine a imprimer a tampon encreur
DE4316294A1 (de) * 1992-05-15 1993-11-18 Teca Print Ag Thayngen Farbbehälter zum Einfärben eines Klischees einer Tampondruckmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742902A (en) * 1971-03-04 1973-07-03 Desky D Plateless printing device
DE3335230A1 (de) * 1983-09-29 1985-04-11 Wilfried 7014 Kornwestheim Philipp Tampondruckmaschine
ES2045269T3 (es) * 1988-06-23 1994-01-16 Morlock Mechanik Dispositivo de entintado para maquina de imprimir de tampon.
US5320037A (en) * 1992-09-28 1994-06-14 Imtran Industries, Inc. Enclosed ink cup for pad-type printing machine
US5272973A (en) * 1993-01-22 1993-12-28 United Silicone Inc. Inkcup assembly and drive mechanism for pad printing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011943A1 (fr) * 1991-12-09 1993-06-24 Louis Bachmann Machine a imprimer a tampon encreur
DE4316294A1 (de) * 1992-05-15 1993-11-18 Teca Print Ag Thayngen Farbbehälter zum Einfärben eines Klischees einer Tampondruckmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5875716A (en) * 1996-12-05 1999-03-02 Markem Corporation Rotating ink cup
DE19921702A1 (de) * 1999-05-12 2000-11-23 Braun Gmbh Verfahren zum Betreiben einer Tampondruckvorrichtung sowie Tampondruckvorrichtung
DE10111802A1 (de) * 2001-03-12 2002-09-26 Siemens Ag Vorrichtung zur Veränderung der Ortsablage eines Farbtopfes auf einem zugeordneten Klischee im Farbgebersystem einer Tampondruckmaschine und Tampondruckmaschine mit einer solchen Vorrichtung
DE102010036700A1 (de) * 2010-07-28 2012-02-02 Siegfried Burgemeister Farbbehälter für Tampondruckmaschine, Reinigungsvorrichtung für Farbbehälter und Tampondruckmaschine

Also Published As

Publication number Publication date
JPH08207419A (ja) 1996-08-13
PL311378A1 (en) 1996-05-27
HU218683B (hu) 2000-11-28
CH688545A5 (de) 1997-11-14
HUT72904A (en) 1996-06-28
HU9502930D0 (en) 1995-12-28
DK0712724T3 (da) 1998-05-18
ES2109799T3 (es) 1998-01-16
US5669301A (en) 1997-09-23
DE59500769D1 (de) 1997-11-13
KR960017151A (ko) 1996-06-17
JP4181227B2 (ja) 2008-11-12
ATE158987T1 (de) 1997-10-15
PL180121B1 (pl) 2000-12-29
EP0712724B1 (fr) 1997-10-08

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