EP0493697A2 - Device for stamping fired ceramic products - Google Patents

Device for stamping fired ceramic products Download PDF

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Publication number
EP0493697A2
EP0493697A2 EP91120799A EP91120799A EP0493697A2 EP 0493697 A2 EP0493697 A2 EP 0493697A2 EP 91120799 A EP91120799 A EP 91120799A EP 91120799 A EP91120799 A EP 91120799A EP 0493697 A2 EP0493697 A2 EP 0493697A2
Authority
EP
European Patent Office
Prior art keywords
stamp
station
stamping
rotation
film
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.)
Withdrawn
Application number
EP91120799A
Other languages
German (de)
French (fr)
Other versions
EP0493697A3 (en
Inventor
Gerold Sper
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.)
Maschinen und Stahlbau Julius Lippert GmbH and Co KG
Original Assignee
Maschinen und Stahlbau Julius Lippert GmbH and Co KG
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 Maschinen und Stahlbau Julius Lippert GmbH and Co KG filed Critical Maschinen und Stahlbau Julius Lippert GmbH and Co KG
Publication of EP0493697A2 publication Critical patent/EP0493697A2/en
Publication of EP0493697A3 publication Critical patent/EP0493697A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001—Applying decorations on shaped articles, e.g. by painting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • 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
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces

Definitions

  • the invention relates to a device for stamping fired ceramic goods according to the preamble of claim 1.
  • Such devices are suitable for stamping glazed ceramic goods without any problems, because when stamping glazed goods the risk of contamination of the stamp device is negligible, so that the stamp quality is not impaired even after a long period of operation of the device.
  • the situation when stamping fired ceramic unglazed goods is completely different.
  • DE-OS 20 54 442 discloses a stamp device provided with a tampon stamp, in which the stamp can be cleaned of residual ink by means of a cleaning device before a new stamping process is carried out. This device is intended for stamping bottles.
  • the invention has for its object to provide a device of the type mentioned, with which it is optimally possible to stamp ceramic goods, in particular unglazed goods, neither the ink pick-up station soiled nor the stamp image due to foreign particles transferred from the unglazed goods to the stamping device is affected.
  • this object is achieved by the features of the characterizing part of claim 1.
  • the foreign particles possibly transferred from the unglazed material to the at least one stamp of the stamp device are removed from the respective stamp before the stamp device is moved on to the ink recording station.
  • the ink pick-up station then moves the stamping device back to the stamping station in order to stamp the next fired ceramic good, in particular unglazed good, transported to the stamping station with a clean stamp overprint.
  • the adhesive coating it is easily possible to hold foreign particles transferred from a stamped good to the corresponding stamp on the film or its adhesive coating and thus to clean the corresponding stamp.
  • the cleaned stamp can then be easily moved on to the ink recording station, which can be a plate etched according to the stamp pattern.
  • the film provided with the adhesive coating is at the stamp cleaning station is arranged adjustable.
  • the adhesive-coated film is designed as an endless strip deflected around deflection rollers.
  • the adhesive-coated film it is also possible for the adhesive-coated film to be designed as a disc which can be rotated about its central axis.
  • a space-saving design of the device results if the stamp station, the stamp cleaning station and the ink recording station are arranged at a distance from one another along a circular line, the center of which is formed by an axis of rotation of the stamp device, wherein the stamp device can be adjusted or rotated about its axis of rotation between the mentioned stations and the transport device touches the circular line at the stamp station.
  • the stamp station with the stamp cleaning station can also form an angle of 90 ° with respect to the axis of rotation of the stamp device and the ink pick-up station with the stamp cleaning station can also form an angle of 90 ° with respect to the axis of rotation of the stamp device.
  • the stamp device is preferably provided as a turnstile with four stamps which protrude radially from the said axis of rotation of the stamp device, adjacent stamps forming an angle of 90 ° with respect to the axis of rotation.
  • stamp station the stamp cleaning station and the ink recording station along the circular line not offset by 90 angular degrees but, for example, by 60 angular degrees, and not to design the stamp device with four stamps but, for example, with 6 equidistantly spaced stamps and the stamp device around its axis of rotation to gradually turn around by 60 degrees.
  • the step-by-step feed movement of the transport device for the ceramic material to be stamped is, of course, suitably adapted to the rotation angle movement of the stamp device in order to always move one step at a time to position the stamping ceramic material exactly at the stamping station of the device.
  • FIG. 1 schematically shows a device 10 for stamping fired ceramic material in a view from above.
  • the device 10 has a transport device 12 with an endless belt 14, which is deflected around two deflection rollers 16. At least one of the deflection rollers 16 is connected to a first drive device 18. Fired ceramic material 20 is arranged on the transport device 12. With the help of the first drive device 18, the endless belt 14 is moved forward step by step, which is indicated by the arrow 22.
  • a stamping device 24 with its axis of rotation 26 and a second drive device 28 for rotating the stamping device 24 about its axis of rotation 26 in the direction of the arrow 30 are provided to the side of the transport device 12.
  • the stamp device 24 is designed as a turnstile with four stamps.
  • the four punches 32 are radially equally far away from the axis of rotation 26 and are equidistantly spaced apart from one another in the circumferential direction of a circular line 34.
  • a stamping station 36, a stamp cleaning station 38 and an ink recording station 40 are arranged along this circular line 34.
  • the stamp station 36 is located at the point where the circular line 34 of the stamp device 24 touches the transport device 12 of the device 10.
  • the ink recording station 40 which has, for example, an etched plate formed with the stamp pattern, lies diametrically opposite the stamp station 36 with respect to the axis of rotation 26.
  • the stamp cleaning station 38 which has a roller, is provided on the circular line 34 in the middle between the stamp station 36 and the ink receiving station 40.
  • a centering device 42 is provided on the transport device 12 on the stamping station 36 in order to position the respective ceramic material 20 to be stamped exactly in relation to the stamping station 36 or the stamp 32 located in the stamping station 36.
  • the centering device 42 has, for example, two centering jaws 44, which can be movable towards and away from one another, which is indicated by the double arrow 46.
  • the first drive device 18 for the transport device 12 and the second drive device 28 for the stamp device 24 are effectively connected to one another in such a way that a gradual advance movement of the transport device 12 by the distance between adjacent ceramic objects 20 to be stamped simultaneously with a gradual rotation of the stamp device 24 by 90 angular degrees he follows.
  • there is a stamp 32 in the stamp station 36 at the same time the second stamp 32 at the stamp cleaning station 38, the third stamp 32 at the ink recording station 40 and the fourth stamp 32 in a free station diametrically opposite the stamp cleaning station 38.
  • FIG. 2 shows sections of the transport device 12 and the stamp device 24 arranged laterally next to the transport device 12 with four stamps 32 oriented perpendicular to one another with respect to the axis of rotation 26 and radially away from the axis of rotation 26 and an embodiment of the stamp cleaning station 38 as shown in FIG. 3 in one Side view is made clear.
  • Reference number 40 also designates the ink recording station in FIG. 2.
  • the stamp cleaning station 38 has a film 48 (see in particular also FIG. 5) with an adhesive coating 50, the film 48 provided with the adhesive coating 50 being designed as an endless strip 52 which extends around Deflection rollers 54 is deflected.
  • the deflection rollers 54 are mounted on a base part 56, which can be formed with an abutment table 58, on which the endless strip 52 is moved past.
  • the abutment table 58 serves to be able to press the respective stamp 32 to be cleaned against the endless strip 52 with a sufficiently large force in order to adhere foreign matter particles, such as ceramic particles of the unglazed goods to be stamped, to the adhesive coating 50 of the endless strip 52 from the stamp 32 to be cleaned fix and thus clean the corresponding stamp 32.
  • Fig. 4 schematically illustrates a stamp cleaning station 38, in which the film 48 provided with an adhesive coating 50 is designed as a disk which can be rotated about a central axis 60 in order to replace a used surface section of the adhesive coating 50 by an unused surface section of the adhesive coating 50 and to optimally accomplish the cleaning of the stamp 32 of the stamp device 24.
  • the transport device drawn in sections is also designated in FIG. 4 with the reference number 12.
  • the ink recording station 40 is on the stamp cleaning station 38 arranged diametrically opposite side of the axis of rotation 26.
  • the step-by-step feed movement of the transport device 12 is again indicated by the arrow 22 in FIGS. 2 and 4, and the step-by-step rotary movement of the stamp device 24 is illustrated by the arrow 30 in these figures.
  • the stamp device 24 in the form of a turnstile must not only be suitable for executing a gradual angular rotation by 90 angular degrees in accordance with the design of the device 10 shown in the figures, but the punches 32 must also be capable of executing a vertically up and down movement be suitable in a direction parallel to the axis of rotation 26 so that the stamps 32 come into contact with the material 20 to be stamped, located on the transport device 12 (see FIG. 1), as well as with the stamp cleaning station 38 and with the ink recording station 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

A device (10) for stamping fired ceramic products is described which has a stamping apparatus (24) which is adjustable between an ink-receiving station (40) and a stamping station (36) situated on a transporting apparatus (12) for the products (20) to be stamped. In order to be able to stamp unglazed ceramic products as well without problems using such a device, a stamp-cleaning station (38) is provided between the stamping station (36) and the ink-receiving station (40).

Description

Die Erfindung betrifft eine Vorrichtung zum Bestempeln gebrannten keramischen Gutes gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device for stamping fired ceramic goods according to the preamble of claim 1.

Derartige Vorrichtungen eignen sich problemlos zum Bestempeln glasierten keramischen Gutes, weil beim Bestempeln glasierten Gutes die Gefahr einer Verschmutzung der Stempeleinrichtung vernachlässigbar gering ist, so dass auch nach einer langen Betriebsdauer der Vorrichtung die Stempelqualität nicht beeinträchtigt ist. Gänzlich anders liegen die Verhältnisse beim Bestempeln gebrannten keramischen unglasierten Gutes. Hierbei ergibt sich das Problem, dass am unglasierten Gut haftende Partikel, bei denen es sich um Staubpartikel bzw. um Keramikpartikel des zu bestempelnden Gutes handelt, während des Stempelvorgangs vom keramischen Gut zum entsprechenden Stempel der Stempeleinrichtung übertragen werden und am Stempel festhaften. Wird der Stempel dann zur Farbaufnahmestation bewegt, um dort mit Stempelfarbe versehen zu werden, so machen sich die am Stempel haftenden Fremdpartikel sowohl an der Farbaufnahemstation als auch beim nachfolgenden Stempelvorgang in der Stempelstation nachteilig bemerkbar. In der Farbaufnahmestation können die Fremdpartikel zu einer Verunreinigung führen und an der Stempelstation können sich die Fremdpartikel bzgl. des Stempelbildes nachteilig auswirken.Such devices are suitable for stamping glazed ceramic goods without any problems, because when stamping glazed goods the risk of contamination of the stamp device is negligible, so that the stamp quality is not impaired even after a long period of operation of the device. The situation when stamping fired ceramic unglazed goods is completely different. The problem arises here that particles adhering to the unglazed good, which are dust particles or ceramic particles of the good to be stamped, occur during the stamping process transferred from the ceramic material to the corresponding stamp of the stamp device and adhered to the stamp. If the stamp is then moved to the ink recording station in order to be provided with stamp ink there, the foreign particles adhering to the stamp have a disadvantageous effect both on the ink recording station and during the subsequent stamping process in the stamp station. The foreign particles can lead to contamination in the ink recording station and the foreign particles can have a disadvantageous effect on the stamp image at the stamp station.

Aus der DE-OS 20 54 442 ist eine mit einem Tamponstempel versehene Stempelvorrichtung bekannt, bei welcher der Stempel mittels einer Reinigungseinrichtung von Restfarbe gesäubert werden kann, ehe ein neuer Stempelvorgang ausgeführt wird. Diese Vorrichtung ist zum Bestempeln von Flaschen vorgesehen.DE-OS 20 54 442 discloses a stamp device provided with a tampon stamp, in which the stamp can be cleaned of residual ink by means of a cleaning device before a new stamping process is carried out. This device is intended for stamping bottles.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, mit welcher es optimal möglich ist, keramisches Gut, insbes. unglasiertes Gut zu bestempeln, wobei weder die Farbaufnahmestation verschmutzt noch das Stempelbild durch vom unglasierten Gut auf die Stempeleinrichtung übertragene Fremdpartikel beeinträchtigt wird.The invention has for its object to provide a device of the type mentioned, with which it is optimally possible to stamp ceramic goods, in particular unglazed goods, neither the ink pick-up station soiled nor the stamp image due to foreign particles transferred from the unglazed goods to the stamping device is affected.

Diese Aufgabe wird erfindungsgemäss durch die Merkmale des Kennzeichenteiles des Anspruchs 1 gelöst. An der Stempelreinigungsstation werden die möglicherweise vom unglasierten Gut auf den mindestens einen Stempel der Stempeleinrichtung übertragenen Fremdpartikel vom jeweiligen Stempel entfernt, bevor die Stempeleinrichtung zur Farbaufnahmestation weiterbewegt wird. Von der Farbaufnahmestation wird die Stempeleinrichtung anschliessend zur Stempelstation zurückbewegt, um das nächste mit Hilfe der Transporteinrichtung zur Stempelstation transportierte gebrannte keramische Gut, insbes. unglasierte Gut, mit einem sauberen Stempelaufdruck zu bestempeln.According to the invention, this object is achieved by the features of the characterizing part of claim 1. At the stamp cleaning station, the foreign particles possibly transferred from the unglazed material to the at least one stamp of the stamp device are removed from the respective stamp before the stamp device is moved on to the ink recording station. Of the The ink pick-up station then moves the stamping device back to the stamping station in order to stamp the next fired ceramic good, in particular unglazed good, transported to the stamping station with a clean stamp overprint.

Mit Hilfe der Kleberbeschichtung ist es problemlos möglich, von einem bestempelten Gut auf den entsprechenden Stempel übertragene Fremdpartikel an der Folie bzw. ihrer Kleberbeschichtung festzuhalten und somit den entsprechenden Stempel zu säubern. Der gesäuberte Stempel kann dann problemlos zur Farbaufnahmestation weiterbewegt werden, bei welcher es sich um eine entsprechend dem Stempelmuster geätzte Platte handeln kann.With the help of the adhesive coating it is easily possible to hold foreign particles transferred from a stamped good to the corresponding stamp on the film or its adhesive coating and thus to clean the corresponding stamp. The cleaned stamp can then be easily moved on to the ink recording station, which can be a plate etched according to the stamp pattern.

Um die mit der Kleberbeschichtung versehene Folie relativ lang verwenden zu können und somit die für das Austauschen einer verbrauchten Folie durch eine ungebrauchte neue Folie benötigte Rüst- bzw. Totzeit minimal zu halten, ist es vorteilhaft, wenn die mit der Kleberbeschichtung versehene Folie an der Stempelreinigungsstation verstellbeweglich angeordnet ist. Das kann bspw. dadurch realisiert werden, dass die kleberbeschichtete Folie als endloser, um Umlenkrollen umgelenkter Streifen ausgebildet ist. Es ist jedoch auch möglich, dass die kleberbeschichtete Folie als Scheibe ausgebildet ist, die um ihre zentrale Achse verdrehbar ist.In order to be able to use the film provided with the adhesive coating for a relatively long time and thus to minimize the set-up or dead time required for replacing a used film with an unused new film, it is advantageous if the film provided with the adhesive coating is at the stamp cleaning station is arranged adjustable. This can be realized, for example, in that the adhesive-coated film is designed as an endless strip deflected around deflection rollers. However, it is also possible for the adhesive-coated film to be designed as a disc which can be rotated about its central axis.

Eine platzsparende Ausbildung der Vorrichtung ergibt sich, wenn die Stempelstation, die Stempelreinigungsstation und die Farbaufnahmestation entlang einer Kreislinie voneinander beabstandet angeordnet sind, deren Zentrum von einer Drehachse der Stempeleinrichtung gebildet ist, wobei die Stempeleinrichtung um ihre Drehachse zwischen den genannten Stationen verstell- bzw. drehbar ist und die Transporteinrichtung die Kreislinie an der Stempelstation tangiert. Bspw. kann die Stempelstation mit der Stempelreinigungsstation in bezug auf die Drehachse der Stempeleinrichtung einen Winkel von 90° und die Farbaufnahmestation mit der Stempelreinigungsstation in bezug auf die Drehachse der Stempeleinrichtung ebenfalls einen Winkel von 90° einschliessen. Bei einer solchen Ausbildung der Vorrichtung ist die Stempeleinrichtung vorzugsweise als Drehkreuz mit vier Stempeln versehen, die von der genannten Drehachse der Stempeleinrichtung radial wegstehen, wobei benachbarte Stempel miteinander in bezug auf die Drehachse einen Winkel von 90° einschliessen. In diesem Fall ist es möglich, die Stempeleinrichtung jeweils schrittweise um ihre Drehachse um 90 Winkelgrad zu verdrehen, um bei jedem Stempelvorgang einen Stempel an der Stempelstation und gleichzeitig einen zweiten Stempel an der Stempelreinigungsstation und einen weiteren Stempel an der Farbaufnahmestation zu positionieren.A space-saving design of the device results if the stamp station, the stamp cleaning station and the ink recording station are arranged at a distance from one another along a circular line, the center of which is formed by an axis of rotation of the stamp device, wherein the stamp device can be adjusted or rotated about its axis of rotation between the mentioned stations and the transport device touches the circular line at the stamp station. E.g. the stamp station with the stamp cleaning station can also form an angle of 90 ° with respect to the axis of rotation of the stamp device and the ink pick-up station with the stamp cleaning station can also form an angle of 90 ° with respect to the axis of rotation of the stamp device. In such an embodiment of the device, the stamp device is preferably provided as a turnstile with four stamps which protrude radially from the said axis of rotation of the stamp device, adjacent stamps forming an angle of 90 ° with respect to the axis of rotation. In this case, it is possible to rotate the stamp device step by step by 90 degrees around its axis of rotation in order to position one stamp at the stamp station and at the same time a second stamp at the stamp cleaning station and a further stamp at the ink recording station.

Selbstverständlich ist es auch möglich, die Stempelstation, die Stempelreinigungsstation und die Farbaufnahmestation entlang der Kreislinie nicht um 90 Winkelgrad sondern bspw. um 60 Winkelgrad versetzt vorzusehen und die Stempeleinrichtung nicht mit vier Stempeln sondern z.B. mit 6 äquidistant beabstandeten Stempeln auszubilden und die Stempeleinrichtung um ihre Drehachse herum jeweils schrittweise um 60 Winkelgrad zu verdrehen. Die schrittweise Vorschubbewegung der Transporteinrichtung für das zu bestemplende keramische Gut ist selbstverständlich passend an die Drehwinkelbewegung der Stempeleinrichtung angepasst, um stets schrittweise aufeinanderfolgend ein zu bestempelndes keramisches Gut genau richtig an der Stempelstation der Vorrichtung zu positionieren.Of course, it is also possible to provide the stamp station, the stamp cleaning station and the ink recording station along the circular line not offset by 90 angular degrees but, for example, by 60 angular degrees, and not to design the stamp device with four stamps but, for example, with 6 equidistantly spaced stamps and the stamp device around its axis of rotation to gradually turn around by 60 degrees. The step-by-step feed movement of the transport device for the ceramic material to be stamped is, of course, suitably adapted to the rotation angle movement of the stamp device in order to always move one step at a time to position the stamping ceramic material exactly at the stamping station of the device.

Ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung zum Bestempeln gebrannten, insbes. unglasierten gebrannten keramischen Gutes ist in der Zeichnung schematisch dargestellt und wird nachfolgend beschrieben. Es zeigt:

Fig. 1
eine Ansicht der Vorrichtung von oben, wobei seitlich neben der Transporteinrichtung die Stempelreinigungsstation und die Farbaufnahmestation und die Stempeleinrichtung mit der Drehachse angedeutet ist,
Fig. 2
eine Ansicht der Stempeleinrichtung seitlich neben der abschnittweise gezeichneten Transporteinrichtung in Blickrichtung von oben mit einer ersten Ausführungsform der Stempelreinigungsstation,
Fig. 3
eine Ansicht der Stempelreinigungsstation gem. Fig.2 in Blickrichtung des Pfeiles III von der Seite,
Fig. 4
eine der Fig. 2 ähnliche Darstellung der Stempeleinrichtung seitlich neben der abschnittweise gezeichneten Transporteinrichtung mit einer zweiten Ausführungsform der Stempelreinigungsstation, und
Fig. 5
einen Schnitt durch eine abschnittweise gezeichnete mit einer Kleberbeschichtung versehene Folie der Stempelreinigungsstation.
An embodiment of the device according to the invention for stamping fired, in particular unglazed fired ceramic goods is shown schematically in the drawing and is described below. It shows:
Fig. 1
2 shows a view of the device from above, the stamp cleaning station and the ink recording station and the stamp device with the axis of rotation being indicated on the side next to the transport device,
Fig. 2
1 shows a view of the stamp device to the side next to the transport device, drawn in sections, in the viewing direction from above with a first embodiment of the stamp cleaning station,
Fig. 3
a view of the stamp cleaning station acc. 2 in the direction of arrow III from the side,
Fig. 4
one of the Fig. 2 similar representation of the stamp device laterally next to the sectioned transport device with a second embodiment of the stamp cleaning station, and
Fig. 5
a section through a section drawn with an adhesive coating provided film of the stamp cleaning station.

Fig. 1 zeigt in einer Ansicht von oben schematisch eine Vorrichtung 10 zum Bestempeln gebrannten keramischen Gutes. Die Vorrichtung 10 weist eine Transporteinrichtung 12 mit einem endlosen Band 14 auf, das um zwei Umlenkrollen 16 umgelenkt ist. Mindestens eine der Umlenkrollen 16 ist mit einer ersten Antriebseinrichtung 18 verbunden. Auf der Transporteinrichtung 12 ist gebranntes keramisches Gut 20 angeordnet. Mit Hilfe der ersten Antriebseinrichtung 18 wird das endlose Band 14 schrittweise vorwärtsbewegt, was durch den Pfeil 22 angedeutet ist.1 schematically shows a device 10 for stamping fired ceramic material in a view from above. The device 10 has a transport device 12 with an endless belt 14, which is deflected around two deflection rollers 16. At least one of the deflection rollers 16 is connected to a first drive device 18. Fired ceramic material 20 is arranged on the transport device 12. With the help of the first drive device 18, the endless belt 14 is moved forward step by step, which is indicated by the arrow 22.

Seitlich neben der Transporteinrichtung 12 ist eine Stempeleinrichtung 24 mit ihrer Drehachse 26 und einer zweiten Antriebseinrichtung 28 zum Drehen der Stempeleinrichtung 24 um ihre Drehachse 26 in Richtung des Pfeiles 30 vorgesehen. Die Stempeleinrichtung 24 ist als Drehkreuz mit vier Stempeln ausgebildet. Die vier Stempel 32 stehen von der Drehachse 26 radial gleich weit weg und sind in Umfangsrichtung einer Kreislinie 34 voneinander äquidistant beabstandet. Entlang dieser Kreislinie 34 sind eine Stempelstation 36, eine Stempelreinigungsstation 38 und eine Farbaufnahmestation 40 angeordnet. Die Stempelstation 36 befindet sich an der Stelle, an welcher die Kreislinie 34 der Stempeleinrichtung 24 die Transporteinrichtung 12 der Vorrichtung 10 tangiert. Die Farbaufnahmestation 40, die bspw. eine mit dem Stempelmuster ausgebildete geätzte Platte aufweist, liegt der Stempelstation 36 in bezug auf die Drehachse 26 diametral gegenüber. Die Stempelreinigungsstation 38, die eine Walze aufweist, ist an der Kreislinie 34 mittig zwischen der Stempelstation 36 und der Farbaufnahmestation 40 vorgesehen.A stamping device 24 with its axis of rotation 26 and a second drive device 28 for rotating the stamping device 24 about its axis of rotation 26 in the direction of the arrow 30 are provided to the side of the transport device 12. The stamp device 24 is designed as a turnstile with four stamps. The four punches 32 are radially equally far away from the axis of rotation 26 and are equidistantly spaced apart from one another in the circumferential direction of a circular line 34. A stamping station 36, a stamp cleaning station 38 and an ink recording station 40 are arranged along this circular line 34. The stamp station 36 is located at the point where the circular line 34 of the stamp device 24 touches the transport device 12 of the device 10. The ink recording station 40, which has, for example, an etched plate formed with the stamp pattern, lies diametrically opposite the stamp station 36 with respect to the axis of rotation 26. The stamp cleaning station 38, which has a roller, is provided on the circular line 34 in the middle between the stamp station 36 and the ink receiving station 40.

An der Transporteinrichtung 12 ist an der Stempelstation 36 eine Zentriereinrichtung 42 vorgesehen, um das jeweilige zu bestempelnde keramische Gut 20 in Bezug auf die Stempelstation 36 bzw. den in der Stempelstation 36 befindlichen Stempel 32 genau richtig zu positionieren. Die Zentriereinrichtung 42 weist bspw. zwei Zentrierbacken 44 auf, die aufeinander zu und voneinander weg bewegbar sein können, was durch den Doppelpfeil 46 angedeutet ist.A centering device 42 is provided on the transport device 12 on the stamping station 36 in order to position the respective ceramic material 20 to be stamped exactly in relation to the stamping station 36 or the stamp 32 located in the stamping station 36. The centering device 42 has, for example, two centering jaws 44, which can be movable towards and away from one another, which is indicated by the double arrow 46.

Die erste Antriebseinrichtung 18 für die Transporteinrichtung 12 und die zweite Antriebseinrichtung 28 für die Stempeleinrichtung 24 sind miteinander derart wirkungsmässig verbunden, dass eine schrittweise Vorschubbewegung der Transporteinrichtung 12 um den Abstand zwischen benachbarten zu bestempelnden Keramikgegenständen 20 simultan mit einer schrittweisen Drehung der Stempeleinrichtung 24 um 90 Winkelgrad erfolgt. Auf diese Weise ist bei jedem Stempelvorgang ein Stempel 32 in der Stempelstation 36, gleichzeitig der zweite Stempel 32 an der Stempelreinigungsstation 38, der dritte Stempel 32 an der Farbaufnahmestation 40 und der vierte Stempel 32 in einer der Stempelreingiungsstation 38 diametral gegenüberliegenden freien Station. Selbstverständlich wäre es auch möglich, an der zuletzt erwähnten freien Station die Farbaufnahmestation 40 vorzusehen.The first drive device 18 for the transport device 12 and the second drive device 28 for the stamp device 24 are effectively connected to one another in such a way that a gradual advance movement of the transport device 12 by the distance between adjacent ceramic objects 20 to be stamped simultaneously with a gradual rotation of the stamp device 24 by 90 angular degrees he follows. In this way, with each stamping operation there is a stamp 32 in the stamp station 36, at the same time the second stamp 32 at the stamp cleaning station 38, the third stamp 32 at the ink recording station 40 and the fourth stamp 32 in a free station diametrically opposite the stamp cleaning station 38. Of course, it would also be possible to provide the color recording station 40 at the last-mentioned free station.

Fig. 2 zeigt abschnittweise die Transporteinrichtung 12 und die seitlich neben der Transporteinrichtung 12 angeordnete Stempeleinrichtung 24 mit vier in bezug auf die Drehachse 26 zueinander senkrecht orientierten, von der Drehachse 26 radial wegstehenden Stempeln 32 und einer Ausführungsform der Stempelreinigungsstation 38, wie sie in Fig. 3 in einer Seitenansicht verdeutlicht ist. Mit der Bezugsziffer 40 ist auch in Fig. 2 die Farbaufnahmestation bezeichnet.2 shows sections of the transport device 12 and the stamp device 24 arranged laterally next to the transport device 12 with four stamps 32 oriented perpendicular to one another with respect to the axis of rotation 26 and radially away from the axis of rotation 26 and an embodiment of the stamp cleaning station 38 as shown in FIG. 3 in one Side view is made clear. Reference number 40 also designates the ink recording station in FIG. 2.

Aus den Figuren 2 und 3 ist ersichtlich, dass die Stempelreinigungsstation 38 eine Folie 48 (sh. insbes. auch Fig.5 ) mit einer Kleberbeschichtung 50 aufweist, wobei die mit der Kleberbeschichtung 50 versehene Folie 48 als endloser Streifen 52 ausgebildet ist, der um Umlenkrollen 54 umgelenkt ist. Die Umlenkrollen 54 sind an einem Grundteil 56 gelagert, das mit einem Widerlagertisch 58 ausgebildet sein kann, auf welchem der endlose Streifen 52 vorbeibewegt wird. Der Widerlagertisch 58 dient dazu, den jeweiligen zu reinigenden Stempel 32 mit einer ausreichend grossen Kraft gegen den endlosen Streifen 52 pressen zu können, um am zu reinigenden Stempel 32 befindliche Fremdstoffpartikel wie Keramikpartikel des zu bestempelnden unglasierten Gutes an der Kleberbeschichtung 50 des endlosen Streifens 52 zu fixieren und somit den entsprechenden Stempel 32 zu reinigen.It can be seen from FIGS. 2 and 3 that the stamp cleaning station 38 has a film 48 (see in particular also FIG. 5) with an adhesive coating 50, the film 48 provided with the adhesive coating 50 being designed as an endless strip 52 which extends around Deflection rollers 54 is deflected. The deflection rollers 54 are mounted on a base part 56, which can be formed with an abutment table 58, on which the endless strip 52 is moved past. The abutment table 58 serves to be able to press the respective stamp 32 to be cleaned against the endless strip 52 with a sufficiently large force in order to adhere foreign matter particles, such as ceramic particles of the unglazed goods to be stamped, to the adhesive coating 50 of the endless strip 52 from the stamp 32 to be cleaned fix and thus clean the corresponding stamp 32.

Fig. 4 verdeutlicht schematisch eine Stempelreinigungsstation 38, bei welcher die mit einer Kleberbeschichtung 50 versehene Folie 48 als Scheibe ausgebildet ist, die um eine zentrale Achse 60 drehbar ist, um einen verbrauchten Flächenabschnitt der Kleberbeschichtung 50 durch einen ungebrauchten Flächenabschnitt der Kleberbeschichtung 50 zu ersetzen und somit die Reinigung der Stempel 32 der Stempeleinrichtung 24 optimal zu bewerkstelligen. Mit der Bezugsziffer 12 ist auch in Fig. 4 die abschnittweise gezeichnete Transporteinrichtung bezeichnet. Die Farbaufnahmestation 40 ist bei der in Fig. 4 angedeuteten Ausbildung der Vorrichtung 10 auf der der Stempelreinigungsstation 38 diametral gegenüberliegenden Seite der Drehachse 26 angeordnet.Fig. 4 schematically illustrates a stamp cleaning station 38, in which the film 48 provided with an adhesive coating 50 is designed as a disk which can be rotated about a central axis 60 in order to replace a used surface section of the adhesive coating 50 by an unused surface section of the adhesive coating 50 and to optimally accomplish the cleaning of the stamp 32 of the stamp device 24. The transport device drawn in sections is also designated in FIG. 4 with the reference number 12. In the embodiment of the device 10 indicated in FIG. 4, the ink recording station 40 is on the stamp cleaning station 38 arranged diametrically opposite side of the axis of rotation 26.

Die schrittweise Vorschubbewegung der Transporteinrichtung 12 ist in den Figuren 2 und 4 wieder durch den Pfeil 22 angedeutet und die schrittweise Winkel-Drehbewegung der Stempeleinrichtung 24 ist in diesen Figuren durch den Pfeil 30 verdeutlicht. Es versteht sich, dass die drehkreuzförmig ausgebildete Stempeleinrichtung 24 nicht nur zur Ausführung einer schrittweisen Winkelverdrehung um 90 Winkelgrad gemäss der in den Figuren dargestellten Ausbildung der Vorrichtung 10 geeignet sein muss, sondern es müssen die Stempel 32 auch zur Ausführung einer vertikal auf- und abgehenden Bewegung in einer zur Drehachse 26 parallelen Richtung geeignet sein, damit die Stempel 32 mit dem zu bestempelnden, auf der Transporteinrichtung 12 befindlichen Gut 20 (sh. Fig. 1) als auch mit der Stempelreinigungsstation 38 und mit der Farbaufnahmestation 40 zur Anlage kommen.The step-by-step feed movement of the transport device 12 is again indicated by the arrow 22 in FIGS. 2 and 4, and the step-by-step rotary movement of the stamp device 24 is illustrated by the arrow 30 in these figures. It goes without saying that the stamp device 24 in the form of a turnstile must not only be suitable for executing a gradual angular rotation by 90 angular degrees in accordance with the design of the device 10 shown in the figures, but the punches 32 must also be capable of executing a vertically up and down movement be suitable in a direction parallel to the axis of rotation 26 so that the stamps 32 come into contact with the material 20 to be stamped, located on the transport device 12 (see FIG. 1), as well as with the stamp cleaning station 38 and with the ink recording station 40.

Claims (4)

Vorrichtung zum Bestempeln gebrannten keramischen Gutes (20) wie Tassen, Teller o.dgl., mit einer Stempeleinrichtung (24), die zwischen einer Farbaufnahmestation (40) und einer an einer Transporteinrichtung (12) für dass zu bestempelnde Gut (20) befindlichen Stempelstation (36) verstellbar ist, wobei zwischen der Stempelstation (36) und der Farbaufnahmestation (40) eine Stempelreinigungsstation (38) vorgesehen ist,
dadurch gekennzeichnet,
dass die Stempelreinigungsstation (38) eine Folie (48) mit einer Kleberbeschichtung (50) aufweist.Apparatus for stamping fired ceramic goods (20) such as cups, plates or the like, with a stamping device (24), which is located between an ink recording station (40) and a stamping station located on a transport device (12) for the goods (20) to be stamped (36) is adjustable, a stamp cleaning station (38) being provided between the stamp station (36) and the ink recording station (40),
characterized,
that the stamp cleaning station (38) has a film (48) with an adhesive coating (50). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die mit der Kleberbeschichtung (50) versehene Folie (48) an der Stempelreinigungsstation (38) verstellbeweglich angeordnet ist.Device according to claim 1,
characterized,
that the film (48) provided with the adhesive coating (50) is arranged such that it can be adjusted at the stamp cleaning station (38). Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die kleberbeschichtete Folie (48, 50) als endloser, um Umlenkrollen (54) umgelenkter Streifen (52) ausgebildet ist.Device according to claim 1 or 2,
characterized,
that the adhesive-coated film (48, 50) is designed as an endless strip (52) deflected around deflection rollers (54). Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die kleberbeschichtete Folie (48, 50) als Scheibe ausgebildet ist, die um ihre zentrale Achse (60) verdrehbar ist.Device according to claim 1 or 2,
characterized,
that the adhesive-coated film (48, 50) is designed as a disc which can be rotated about its central axis (60).
EP19910120799 1990-12-28 1991-12-04 Device for stamping fired ceramic products Withdrawn EP0493697A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904042033 DE4042033C1 (en) 1990-12-28 1990-12-28
DE4042033 1990-12-28

Publications (2)

Publication Number Publication Date
EP0493697A2 true EP0493697A2 (en) 1992-07-08
EP0493697A3 EP0493697A3 (en) 1992-10-28

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EP19910120799 Withdrawn EP0493697A3 (en) 1990-12-28 1991-12-04 Device for stamping fired ceramic products

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EP (1) EP0493697A3 (en)
DE (1) DE4042033C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20103145U1 (en) * 2001-02-22 2001-06-21 Tampoprint Gmbh Device for printing bottle caps

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054442A1 (en) * 1970-11-05 1972-05-25 Raku Kunststoff-Verpackungswerke Gmbh, 7550 Rastatt Method and device for printing on a body
FR2284452A1 (en) * 1974-09-11 1976-04-09 Carnaud & Forges Printing machine accessory - takes ink from cylinder when no sheet is passing through
GB2081181A (en) * 1980-07-15 1982-02-17 Unilever Plc Cleaning offset printing blankets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054442A1 (en) * 1970-11-05 1972-05-25 Raku Kunststoff-Verpackungswerke Gmbh, 7550 Rastatt Method and device for printing on a body
FR2284452A1 (en) * 1974-09-11 1976-04-09 Carnaud & Forges Printing machine accessory - takes ink from cylinder when no sheet is passing through
GB2081181A (en) * 1980-07-15 1982-02-17 Unilever Plc Cleaning offset printing blankets

Also Published As

Publication number Publication date
EP0493697A3 (en) 1992-10-28
DE4042033C1 (en) 1992-04-23

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