EP1817167B1 - Gravure printing unit with a doctor for the printing cylinder gravure printing machine and method for exchange of a printing cylinder - Google Patents

Gravure printing unit with a doctor for the printing cylinder gravure printing machine and method for exchange of a printing cylinder Download PDF

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Publication number
EP1817167B1
EP1817167B1 EP05819396A EP05819396A EP1817167B1 EP 1817167 B1 EP1817167 B1 EP 1817167B1 EP 05819396 A EP05819396 A EP 05819396A EP 05819396 A EP05819396 A EP 05819396A EP 1817167 B1 EP1817167 B1 EP 1817167B1
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EP
European Patent Office
Prior art keywords
gravure
gravure cylinder
ink
wiping surface
cylinder
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EP05819396A
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German (de)
French (fr)
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EP1817167A1 (en
Inventor
Manfred Loddenkötter
Klaus Gräler
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/061—Inking devices
    • B41F9/068—End seals between cylinder and housing

Definitions

  • the invention relates to a gravure printing unit according to claim 1, a gravure printing machine according to claim 16 and a method according to claim 17 gravure printing units contain form cylinder, which carry the low-lying, often engraved print image. These forme cylinders are often colored in a paint tray and then doctored off. In other cases, the coloring and the subsequent limitation of the amount of ink on the cylinder done in another way.
  • the beats DE 100 18 995 A1 such a scraper, which can clean the edge regions of the forme cylinder.
  • the actual wiping element evidently consists of a sheet-metal angle which engages over a portion of an edge of the forme cylinder so that an inner surface of the sheet-metal angle forms a contact surface (wiping surface) with the peripheral surface of the forme cylinder.
  • document US 5636570 A shows a cleaning device with a scraper surface, which is adaptable to the radius of curvature of the forme cylinder.
  • the scraper shown shows a good, but still expandable cleaning performance. Therefore, the object of the present invention is to propose a gravure printing unit, which is equipped with a scraper even greater cleaning performance.
  • the present invention takes advantage of the finding that the cleaning effect apparently with the quality of the fitting behavior of the Farbabstreif Description on the form cylinder has to do.
  • the contact surface has a certain length of, for example, at least 20 cm in the circumferential direction of the forme cylinder.
  • This is very difficult if - as usual in packaging gravure - often change the printing lengths lead to the use of cylinders of different diameters.
  • the use of rigid scrapers such as from the DE 100 18 995 A1 proposed, only to limited success.
  • the solution to this problem is the subject of the independent method claim.
  • additional means is meant devices which force the ink wiping surface against the edge of the forme cylinder or hold it in a position suitable for its wiping function.
  • additional means may for this purpose comprise adjusting screws, which are adjusted accordingly when changing the forme cylinder and adjust the radius of curvature of at least parts of the Farbabstreif Structure to the new form cylinder.
  • spring elements of all kinds has proven to be advantageous in this context, which can make the adjustment of the radius of curvature of the stripping surface within its operating range.
  • adjustable tensioning means for the spring elements can again be provided.
  • Farbabstreifern the one Having scraper surface whose length in the circumferential direction of the forme cylinder exceeds 10 cm, the use of leaf springs or spring plates is advantageous. These generally elongate spring elements are then arranged in the circumferential direction of the forme cylinder.
  • the Farbabstreif Design is an interface of a body of a material which is profiled in the radial direction of the forme cylinder, that the Farbabstreif Structure can rest on the forme cylinder, while at least one other, the forme cylinder facing interface of the body has a distance from the forme cylinder. In this way, this body can rest on parts of the forme cylinder and only cover other parts of the forme cylinder and thus shield, without touching these parts.
  • the stripping surface in the radial direction covers a significant part of the circumference.
  • lengths of 10 to 50 cm and even more are possible.
  • the wiper surface should be connected directly to the squeegee in the running direction of the forme cylinder.
  • the tread will be an interface of a body which can engage over the squeegee and / or the squeegee holder in order to achieve sealing in the wiper blade wiper area.
  • Scraper surfaces which only strip the edge region of the form cylinders, can pass in the direction of travel ⁇ of the forme cylinder at the pressure zone between impression roller and forme cylinder, if this pressure zone does not extend over the entire width (extension in the axial direction z) of the forme cylinder.
  • scrapers can be provided on each side of the print zone if the impression roller has a smaller extent in the axial direction than the forme cylinder.
  • paint pans On the side of the printing zone facing away from the doctor blade, there are often paint pans. This may be the ink tray from which the form cylinder emerges before being doctored off. However, it may also be an upstream first color trough, which, for example, carries out a pre-inking of the forme cylinder in operative connection with a tinting roller.
  • Suitable splash guard devices of this type are referred to below as second splashguard devices.
  • the effective range of this second splash guard covers at least the width of the pressure zone.
  • Fig. 1 shows a side view of a gravure printing unit 4 according to the invention, in which 4 between a form cylinder 1 and a impression roller 2 a substrate 3 - usually film - is printed in a print zone 5.
  • the forme cylinder 1 rotates clockwise in its circumferential direction ⁇ .
  • the peripheral surface of the forme cylinder 1 is "pre-dyed" in a first ink reservoir 6.
  • This first ink reservoir 6 is formed by the forme cylinder 1 and the inking roller 7. Any lateral boundary surfaces are not shown.
  • the inking roller 7 rotates in the direction of arrow 8 and rolls off with the forme cylinder 1.
  • the inking roller 7 is surrounded by the Einfärbewalzenspritztik 9.
  • spray protection devices are not as large and structurally simple design as, for example, the spray panel 12 between the ink tray 10 and the squeegee holder 14.
  • Splashguards are just here important because color splashes that arise in this area, in addition to other machine components can also contaminate the substrate 3.
  • the Farbabstreif redesign 15 counter to the direction ⁇ on doctor blade 14 and blade holder 13 and forms in the running direction ⁇ of the forme cylinder 1 directly behind the doctor blade 14 a Farbabstreif Chemistry 16.
  • the width of the impression roller (axial extent) is smaller than that of the forme cylinder, and the narrower impression roller is centered on the forme cylinder in the axial direction.
  • Such an arrangement of impression roller and forme cylinder is for example in Fig. 5 shown for the embodiment shown. Therefore, both edge regions of the forme cylinder 1 are free; There is no printing process here. This fact makes it possible to let the Farbabstreif redesign 15 laterally reach past the print zone.
  • the ink stripping body extends in this embodiment further into the effective range of the second splash guard 27, which closes the first ink reservoir 6 upwards.
  • the second splash guard 27 extends over the entire width of the forme cylinder 1 and overlaps the Farbabstreif redesign 15th
  • the second splash guard 27 has webs 28, with which he 27 slides on the peripheral surface of the forme cylinder, so that no closed resting of the end portion of the second splash guard 27 on the peripheral surface of the forme cylinder comes about. On the other side of the second splash guard 27 this is hinged to the holder 19 on the Einfärbewalzenspritztik 9.
  • the extent of the ink scraping body 15 in the region of the printing zone should be limited to the axial z edge regions of the forme cylinder.
  • upstream and downstream areas of Farbabstreif redesign could cover much larger areas or even the entire width of the forme cylinder.
  • this circumstance by no means means that the color-stripping body 16 with its entire interface facing the forme cylinder 1 forms a contact surface or, for the purposes of this application, color stripping surface.
  • FIGS. 2a and 2b this is illustrated by means of an exemplary embodiment of a stripper body 15 released from the gravure printing unit.
  • This wiper body could change the position of the FIG. 1 take the squirting body shown.
  • the arrows z, r and ⁇ in the figures indicate the spatial directions which the stripping body 15 assumes in its installed position in the cylindrical coordinate system of the forme cylinder.
  • the Farbabstreifisson 15 is in a strip shape.
  • the side of the Farbabstreif stresses, in the installation position (see FIG. 1 ) facing the forme cylinder 1 is profiled in such a way that it forms two knobs in the radial direction of the forme cylinder 1.
  • One nub 29 serves as a retaining lip 29, while the other nub is in the installed position of the Abstreif stresses 15 in contact with the peripheral surface of the forme cylinder 1 and thereby the stripping surface sixteenth formed.
  • the larger parts of the forme cylinder surface facing the Abstreif stressess 15 are still spaced in the installed position to the forme cylinder. These parts of the surface serve as a splash panel 17 of the Abstreif stressess 15.
  • the shown Abstreifschreib 15 still has a locking hole 18, in which in the installation position of the stripper body a pin or a screw engages in order to prevent the Abstreifoasa 15 of the format cylinder 1 at his rotary motion is carried away.
  • FIG. 3 shows this stripping body 15 in its installed position in a section along the main axis of symmetry of the forme cylinder 1.
  • the stripping body 15 is held by the holder 19.
  • the forme cylinder 1 has a shaft 22.
  • the arrangement shown can also be located in a mirror-inverted arrangement at the other axial end of the forme cylinder.
  • additional means 21, 22 for adjusting the radius of curvature of the wiper surface are shown. They consist in the spring plate 21 and the biasing elements 20, the function of the FIG. 4 , which shows this arrangement from a different angle, becomes clearer.
  • the position of the biasing elements 20 is variable, so that the spring plate 21 can be clamped differently.
  • the spring plate gives the stripping body 15, via the pressure element 23, a force which presses the stripping body 15 against the forme cylinder 1 and the squeegee 14.
  • On the pressure element 23 is also the locking pin 24, which engages in the locking hole 18 of the stripper 15.
  • FIG. 5 a plan view of a device according to the invention from the side, which is normally occupied by the impression roller 2. Any retaining elements, drive devices and the like were not shown here.
  • the dashed lines indicate hidden edges.
  • Line 30 symbolizes the main axis of symmetry of the forme cylinder.
  • the pressure zone 5 is shown in an exaggerated rectangular shape.
  • printing units according to the invention are components of multicolour series gravure printing machines.
  • Packaging printing is a preferred field of application of these machines.
  • a Farbabstreifer 26 in the sense of this document includes all device elements that strip paint and hold the necessary Abstreif Chemistry 16 in its working position and press.
  • a gravure printing 4 as in the Figures 3 and 4 shown thus belong to the Abstreif analyses 15 with the retaining lip 29, the holder 25, the biasing members 21 and the spring plate 20 with the pressure element 23 and the locking pin 24 to the Farbabstreifer 26th

Abstract

The invention relates to a gravure printing unit (4), comprising a printing cylinder (1), to which (1) at least one ink doctor blade (26) is applied, with an ink stripping surface (16) in contact with the circumferential surface of the printing cylinder, at least in partial regions of the printing cylinder (1). The radius of curvature of the ink stripping surface (16) may be matched to the radius of curvature of the printing cylinder (1), at least over partial regions of the extension thereof in the circumferential direction (f) of the printing cylinder (1), in a novel and inventive manner. A method for exchange of printing cylinders (1) is also disclosed.

Description

Die Erfindung betrifft ein Tiefdruckwerk nach Anspruch 1, eine Tiefdruckmaschine nach Anspruch 16 und ein Verfahren nach Anspruch 17 Tiefdruckwerke enthalten Formzylinder, die das tiefliegende, oft eingravierte Druckbild tragen. Diese Formzylinder werden oft in einer Farbwanne eingefärbt und anschließend abgerakelt. In anderen Fällen erfolgen die Einfärbung und die anschließende Begrenzung der Farbmenge auf dem Zylinder auf andere Weise.The invention relates to a gravure printing unit according to claim 1, a gravure printing machine according to claim 16 and a method according to claim 17 gravure printing units contain form cylinder, which carry the low-lying, often engraved print image. These forme cylinders are often colored in a paint tray and then doctored off. In other cases, the coloring and the subsequent limitation of the amount of ink on the cylinder done in another way.

Im Tiefdruck und hier insbesondere im Verpackungsmitteltiefdruck stellen Farbtropfen, die sich von dem eingefärbten Formzylinder lösen, eine Ursache für eine stetige Verschmutzung der Tiefdruckmaschine dar.In intaglio printing and in particular in packaging gravure printing, color drops that detach from the inked forme cylinder are a cause for continuous contamination of the gravure printing machine.

Daher schlägt die DE 100 18 995 A1 einen solchen Abstreifer vor, der die Randbereiche des Formzylinders reinigen kann. Das eigentliche Abstreifelement besteht offenbar aus einem Blechwinkel, der einen Abschnitt einer Kante des Formzylinders übergreift, so dass eine Innenfläche des Blechwinkels eine Kontaktfläche (Abstreiffläche) mit der Umfangsfläche des Formzylinders ausprägt. Dokument US 5636570 A zeigt eine Reinigungsvorrichtung mit einer Abstreiffläche, die an den Krümmungsradius des Formzylinders anpassbar ist.Therefore, the beats DE 100 18 995 A1 such a scraper, which can clean the edge regions of the forme cylinder. The actual wiping element evidently consists of a sheet-metal angle which engages over a portion of an edge of the forme cylinder so that an inner surface of the sheet-metal angle forms a contact surface (wiping surface) with the peripheral surface of the forme cylinder. document US 5636570 A shows a cleaning device with a scraper surface, which is adaptable to the radius of curvature of the forme cylinder.

Der gezeigte Abstreifer zeigt eine gute, aber noch ausbaufähige Reinigungsleistung. Daher besteht die Aufgabe der vorliegenden Erfindung darin, ein Tiefdruckwerk vorzuschlagen, das mit einem Abstreifer noch größerer Reinigungsleistung ausgestattet ist.The scraper shown shows a good, but still expandable cleaning performance. Therefore, the object of the present invention is to propose a gravure printing unit, which is equipped with a scraper even greater cleaning performance.

Die Aufgabe wird durch die Merkmale der Ansprüche 1, 16 und 17 gelöst.The object is solved by the features of claims 1, 16 and 17.

Die vorliegende Erfindung macht sich die Erkenntnis zunutze, dass der Reinigungseffekt offenbar mit der Güte des Anliegeverhaltens der Farbabstreiffläche auf dem Formzylinder zu tun hat. Darüber hinaus scheint es vorteilhaft zu sein, wenn die Anliegefläche eine gewisse Länge von zum Beispiel mindestens 20 cm in Umfangsrichtung des Formzylinders aufweist. Gerade bei zunehmender Länge der Anliegefläche ist es aber erforderlich, dass sich die Krümmungsradien von Formzylinder und Anliegefläche über eine gewisse Länge entsprechen, um ein Anliegen großer Teile der Anliegefläche auf dem Formzylinder und damit ein verbessertes Reinigungsergebnis zu erhalten. Dies gestaltet sich sehr schwierig, wenn - wie im Verpackungstiefdruck üblich - häufige Wechsel der Drucklängen zum Einsatz von Formzylindern unterschiedlichen Durchmessers führen. In solchen Fällen führt die Verwendung starrer Abstreifer, wie von der DE 100 18 995 A1 vorgeschlagen, nur zu eingeschränktem Erfolg. Die Lösung dieses Problems ist Gegenstand des unabhängigen Verfahrensanspruchs.The present invention takes advantage of the finding that the cleaning effect apparently with the quality of the fitting behavior of the Farbabstreiffläche on the form cylinder has to do. In addition, it seems to be advantageous if the contact surface has a certain length of, for example, at least 20 cm in the circumferential direction of the forme cylinder. Especially with increasing length of the contact surface, it is necessary that correspond to the radii of curvature of the form cylinder and abutment surface over a certain length in order to obtain a concern of large parts of the contact surface on the forme cylinder and thus an improved cleaning result. This is very difficult if - as usual in packaging gravure - often change the printing lengths lead to the use of cylinders of different diameters. In such cases, the use of rigid scrapers, such as from the DE 100 18 995 A1 proposed, only to limited success. The solution to this problem is the subject of the independent method claim.

Bei der Fertigung erfindungsgemäßer Abstreifer ist die Verwendung flexiblen und in seiner Form veränderlichen Materials von Vorteil. Hierzu eignen sich gummiartige Materialien, die jedoch auch rein synthetischer Herkunft sein können. Eine vorteilhafte Anwendung der hier beschriebenen Abstreifer besteht in deren Einsatz in den Randbereichen des Formzylinders. Auch die erwähnte DE 100 18 995 A1 zeigt einen solchen Anwendungsfall.In the production of scrapers according to the invention, the use of flexible and variable in shape material is advantageous. For this purpose, rubbery materials are suitable, but which may also be of purely synthetic origin. An advantageous application of the wiper described here is their use in the edge regions of the forme cylinder. Also the mentioned DE 100 18 995 A1 shows such an application.

Es ist von Vorteil, wenn ein solcher Farbabstreifer zusätzliche Mittel zum Einstellen des Krümmungsradius aufweist. Mit "zusätzlichen Mitteln" sind Vorrichtungen gemeint, die die Farbabstreiffläche gegen den Rand des Formzylinders pressen oder ihn in einer für seine Abstreifungsfunktion geeigneten Position halten. Eine solche Vorrichtung kann zu diesem Zweck Stellschrauben umfassen, die bei einem Wechsel des Formzylinders entsprechend eingestellt werden und den Krümmungsradius zumindest von Teilen der Farbabstreiffläche an den neuen Formzylinder anpassen. Als vorteilhaft in diesem Zusammenhang hat sich jedoch auch die Verwendung von Federelementen aller Art erwiesen, die innerhalb ihres Stellbereichs die Anpassung des Krümmungsradius der Abstreiffläche vornehmen können. Um den Bereich, innerhalb dessen die Federelemente die Abstreiffläche befriedigend an Formzylinder unterschiedlichen Durchmessers anpassen können, zu erweitern, können wiederum einstellbare Spannmittel für die Federelemente vorgesehen werden. Insbesondere bei Farbabstreifern, die eine Abstreiffläche aufweisen, deren Länge in Umfangsrichtung des Formzylinders 10 cm übersteigt, ist die Verwendung von Blattfedern oder Federblechen von Vorteil. Diese in der Regel langerstreckten Federelemente werden dann in Umfangsrichtung des Formzylinders angeordnet.It is advantageous if such a color scraper has additional means for adjusting the radius of curvature. By "additional means" is meant devices which force the ink wiping surface against the edge of the forme cylinder or hold it in a position suitable for its wiping function. Such a device may for this purpose comprise adjusting screws, which are adjusted accordingly when changing the forme cylinder and adjust the radius of curvature of at least parts of the Farbabstreiffläche to the new form cylinder. However, the use of spring elements of all kinds has proven to be advantageous in this context, which can make the adjustment of the radius of curvature of the stripping surface within its operating range. In order to widen the range within which the spring elements can satisfactorily adapt the wiping surface to forme cylinders of different diameters, adjustable tensioning means for the spring elements can again be provided. Especially with Farbabstreifern, the one Having scraper surface whose length in the circumferential direction of the forme cylinder exceeds 10 cm, the use of leaf springs or spring plates is advantageous. These generally elongate spring elements are then arranged in the circumferential direction of the forme cylinder.

Die Farbabstreiffläche ist eine Grenzfläche eines Körpers aus einem Material, das derart in der radialen Richtung des Formzylinders profiliert ist, dass die Farbabstreiffläche auf dem Formzylinder aufliegen kann, während zumindest eine andere, dem Formzylinder zugewandte Grenzfläche des Körpers einen Abstand zu dem Formzylinder aufweist. Auf diese Weise kann dieser Körper auf Teilen des Formzylinders aufliegen und andere Teile des Formzylinders lediglich überdecken und damit abschirmen, ohne diese Teile zu berühren.The Farbabstreiffläche is an interface of a body of a material which is profiled in the radial direction of the forme cylinder, that the Farbabstreiffläche can rest on the forme cylinder, while at least one other, the forme cylinder facing interface of the body has a distance from the forme cylinder. In this way, this body can rest on parts of the forme cylinder and only cover other parts of the forme cylinder and thus shield, without touching these parts.

Es ist vorteilhaft, wenn die Abstreiffläche in radialer Richtung einen nennenswerten Teil des Umfanges überstreicht. Je nach dem Umfang des Formzylinders kommen Längen von 10 bis 50 cm und noch darüber hinaus in Frage. Vorteilhaft ist es, in einem erfindungsgemäßen Tiefdruckwerk eine weitere Rakel anzubringen, die überschüssige Farbe von dem Formzylinder abrakelt, nachdem dieser die Farbwanne durchlaufen hat. Dann sollte sich die Abstreiffläche in Laufrichtung des Formzylinders direkt an das Rakel anschließen. In der Regel wird die Lauffläche eine Grenzfläche eines Körpers sein, der das Rakel und/oder den Rakelhalter übergreifen kann, um im Grenzbereich Rakel - Abstreiffläche Dichtigkeit herbeizuführen. Abstreifflächen, die lediglich den Randbereich von Formzylindern abstreifen, können in der Laufrichtung ϕ des Formzylinders an der Druckzone zwischen Presseur und Formzylinder vorbeigreifen, wenn diese Druckzone sich nicht über die ganze Breite (Ausdehnung in axialer Richtung z) des Formzylinders erstreckt. So können beispielsweise auf jeder Seite der Druckzone Abstreifer vorgesehen sein, wenn der Presseur eine geringere Ausdehnung in axialer Richtung hat als der Formzylinder.It is advantageous if the stripping surface in the radial direction covers a significant part of the circumference. Depending on the circumference of the forme cylinder, lengths of 10 to 50 cm and even more are possible. It is advantageous to provide a further doctor blade in a gravure printing unit according to the invention, which scrapes off excess ink from the forme cylinder after it has passed through the ink tray. Then the wiper surface should be connected directly to the squeegee in the running direction of the forme cylinder. As a rule, the tread will be an interface of a body which can engage over the squeegee and / or the squeegee holder in order to achieve sealing in the wiper blade wiper area. Scraper surfaces, which only strip the edge region of the form cylinders, can pass in the direction of travel φ of the forme cylinder at the pressure zone between impression roller and forme cylinder, if this pressure zone does not extend over the entire width (extension in the axial direction z) of the forme cylinder. For example, scrapers can be provided on each side of the print zone if the impression roller has a smaller extent in the axial direction than the forme cylinder.

Auf der dem Rakel abgewandten Seite der Druckzone befinden sich oft Farbwannen. Das kann die Farbwanne sein, aus der der Formzylinder auftaucht, bevor er abgerakelt wird. Es kann sich jedoch auch um eine vorgelagerte erste Farbwanne handeln, die beispielsweise in Wirkverbindung mit einer Einfärbewalze eine Voreinfärbung des Formzylinders vornimmt.On the side of the printing zone facing away from the doctor blade, there are often paint pans. This may be the ink tray from which the form cylinder emerges before being doctored off. However, it may also be an upstream first color trough, which, for example, carries out a pre-inking of the forme cylinder in operative connection with a tinting roller.

Es ist vorteilhaft, Spritzer, die von der Farboberfläche dieser Farbwannen durch die Bewegung der Walzen emporgeschleudert werden, abzufangen. Geeignete Spritzschutzvorrichtungen dieser Art werden im Folgenden zweite Spritzschutzvorrichtungen genannt. Vorteilhafterweise deckt der Wirkbereich dieser zweiten Spritzschutzvorrichtung zumindest die Breite der Druckzone ab.It is advantageous to catch splashes that are thrown up from the paint surface of these paint pans by the movement of the rollers. Suitable splash guard devices of this type are referred to below as second splashguard devices. Advantageously, the effective range of this second splash guard covers at least the width of the pressure zone.

Weitere Details und Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.
Die einzelnen Figuren zeigen:

Fig. 1
Eine skizzierte Seitenansicht eines Tiefdruckwerks
Fig. 2a
Eine Ansicht eines Farbabstreifköpers
Fig.2b
Eine Ansicht desselben Farbabstreifkörpers aus anderem Blickwinkel
Fig. 3
Einen Schnitt durch ein Tiefdruckwerk
Fig. 4
Einen Schnitt durch ein Tiefdruckwerk entlang der Linie A-A
Fig. 5
Eine Draufsicht auf einen Formzylinder und einige farbabstreifende Elemente eines Tiefdruckwerks von der Position des Presseurs aus
Further details and embodiments of the invention will become apparent from the description and the claims.
The individual figures show:
Fig. 1
A sketched side view of a gravure printing unit
Fig. 2a
A view of a paint stripper body
2b
A view of the same Farbabstreifkörpers from another angle
Fig. 3
A section through a gravure printing unit
Fig. 4
A section through a gravure printing plant along the line AA
Fig. 5
A plan view of a form cylinder and some farbabstreifende elements of a gravure printing from the position of the impression

Fig. 1 zeigt eine Seitenansicht eines erfindungsgemäßen Tiefdruckwerkes 4, bei dem 4 zwischen einem Formzylinder 1 und einem Presseur 2 ein Bedruckstoff 3 - in der Regel Folie - in einer Druckzone 5 bedruckt wird. Hierbei dreht sich der Formzylinder 1 im Uhrzeigersinn in seiner Umfangsrichtung ϕ. Nach dem Verlassen der Druckzone 5 wird die Umfangsfläche des Formzylinders 1 in einem ersten Farbreservoir 6 "voreingefärbt". Dieses erste Farbreservoir 6 wird von dem Formzylinder 1 und der Einfärbewalze 7 gebildet. Allfällige seitliche Begrenzungsflächen sind nicht dargestellt. Die Einfärbewalze 7 dreht sich in Richtung des Pfeiles 8 und rollt mit dem Formzylinder 1 ab. Die Einfärbewalze 7 ist von dem Einfärbewalzenspritzschutz 9 umgeben. Die weitere Drehung des Formzylinders 1 in der Richtung ϕ fördert die eben eingefärbten Bereiche der Umfangsfläche in den Bereich der Farbwanne 10, in der diese Bereiche des Formzylinders das zweite Farbreservoir 11 durchlaufen. Nach dem Verlassen des Farbreservoirs 11 ist die Umfangsfläche des Formzylinders 1 von der Spritzblende 12 von den Außenbereichen des Tiefdruckwerks 4 abgeschirmt. Diese Spritzblende 12 schließt mit dem Rakelhalter 13, der das Rakel 14 trägt, ab. Das Rakel 14 ist gegen den Formzylinder 1 angestellt und rakelt überschüssige Farbe vor Beginn des Druckprozesses von der Umfangsfläche des Formzylinders 1 ab. Nachdem die gerade abgerakelten Bereiche das Rakel passiert haben, kommen sie in die konstruktiv problematische Zone im Einflussbereich sowohl des Presseurs 2 als auch des Formzylinders 1. In diesem Bereich sind Spritzschutzvorrichtungen nicht so großflächig und konstruktiv einfach gestaltbar wie zum Beispiel die Spritzblende 12 zwischen der Farbwanne 10 und dem Rakelhalter 14. Spritzschutzvorrichtungen sind aber gerade hier wichtig, da Farbspritzer, die in diesem Bereich entstehen, neben anderen Maschinenkomponenten auch noch den Bedruckstoff 3 verunreinigen können. Fig. 1 shows a side view of a gravure printing unit 4 according to the invention, in which 4 between a form cylinder 1 and a impression roller 2 a substrate 3 - usually film - is printed in a print zone 5. In this case, the forme cylinder 1 rotates clockwise in its circumferential direction φ. After leaving the pressure zone 5, the peripheral surface of the forme cylinder 1 is "pre-dyed" in a first ink reservoir 6. This first ink reservoir 6 is formed by the forme cylinder 1 and the inking roller 7. Any lateral boundary surfaces are not shown. The inking roller 7 rotates in the direction of arrow 8 and rolls off with the forme cylinder 1. The inking roller 7 is surrounded by the Einfärbewalzenspritzschutz 9. The further rotation of the forme cylinder 1 in the direction φ conveys the newly dyed areas of the peripheral surface into the region of the ink trough 10, in which these regions of the forme cylinder pass through the second ink reservoir 11. After leaving the paint reservoir 11, the peripheral surface of the plate cylinder 1 of the Spray shield 12 shielded from the outside of the gravure printing unit 4. This splash panel 12 closes with the doctor blade holder 13 which carries the doctor blade 14 from. The squeegee 14 is employed against the forme cylinder 1 and scraps excess paint from the peripheral surface of the forme cylinder 1 before the start of the printing process. After the just abgerakelten areas have passed the doctor, they come into the structurally problematic zone in the sphere of influence of both the impression 2 and the forme cylinder 1. In this area spray protection devices are not as large and structurally simple design as, for example, the spray panel 12 between the ink tray 10 and the squeegee holder 14. Splashguards are just here important because color splashes that arise in this area, in addition to other machine components can also contaminate the substrate 3.

Um möglichst großen Schutz vor Farbspritzern zu erzielen, greift der Farbabstreifkörper 15 entgegen der Laufrichtung ϕ über Rakel 14 und Rakelhalter 13 hinaus und bildet in Laufrichtung ϕ des Formzylinders 1 direkt hinter dem Rakel 14 eine Farbabstreiffläche 16 aus.In order to achieve the greatest possible protection against paint splashes, the Farbabstreifkörper 15 counter to the direction φ on doctor blade 14 and blade holder 13 and forms in the running direction φ of the forme cylinder 1 directly behind the doctor blade 14 a Farbabstreiffläche 16.

In dem in Figur 1 gezeigten Ausführungsbeispiel ist die Breite des Presseurs (axiale Ausdehnung) geringer als die des Formzylinders und der schmälere Presseur ist in der axialen Richtung auf dem Formzylinder zentriert. Eine solche Anordnung von Presseur und Formzylinder ist zum Beispiel in Fig. 5 für das gezeigte Ausführungsbeispiel gezeigt. Daher sind beide Randbereiche des Formzylinders 1 frei; hier findet kein Druckprozess statt. Dieser Umstand erlaubt es, den Farbabstreifkörper 15 seitlich an der Druckzone vorbeigreifen zu lassen. In Laufrichtung ϕ des Formzylinders 1 erstreckt sich der Farbabstreifkörper in diesem Ausführungsbeispiel weiter bis in den Wirkbereich des zweiten Spritzschutzes 27, der das erste Farbreservoir 6 nach oben hin abschließt. In dem gezeigten Ausführungsbeispiel erstreckt sich der zweite Spritzschutz 27 über die ganze Breite des Formzylinders 1 und übergreift den Farbabstreifkörper 15.In the in FIG. 1 In the embodiment shown, the width of the impression roller (axial extent) is smaller than that of the forme cylinder, and the narrower impression roller is centered on the forme cylinder in the axial direction. Such an arrangement of impression roller and forme cylinder is for example in Fig. 5 shown for the embodiment shown. Therefore, both edge regions of the forme cylinder 1 are free; There is no printing process here. This fact makes it possible to let the Farbabstreifkörper 15 laterally reach past the print zone. In the direction of travel φ of the forme cylinder 1, the ink stripping body extends in this embodiment further into the effective range of the second splash guard 27, which closes the first ink reservoir 6 upwards. In the embodiment shown, the second splash guard 27 extends over the entire width of the forme cylinder 1 and overlaps the Farbabstreifkörper 15th

Der zweite Spritzschutz 27 besitzt Stege 28, mit denen 28 er 27 auf der Umfangsfläche des Formzylinders gleitet, so dass kein geschlossenes Aufliegen des Endbereichs des zweiten Spritzschutzes 27 auf der Umfangsfläche des Formzylinders zustande kommt. Auf der anderen Seite des zweiten Spritzschutzes 27 ist dieser mit der Halterung 19 an dem Einfärbewalzenspritzschutz 9 angelenkt.The second splash guard 27 has webs 28, with which he 27 slides on the peripheral surface of the forme cylinder, so that no closed resting of the end portion of the second splash guard 27 on the peripheral surface of the forme cylinder comes about. On the other side of the second splash guard 27 this is hinged to the holder 19 on the Einfärbewalzenspritzschutz 9.

Angesichts des allfälligen Vorhandenseins des Presseurs 2 im Bereich der Druckzone 5 sollte die Ausdehnung des Farbabstreifkörpers 15 im Bereich der Druckzone auf die axialen z Randbereiche des Formzylinders beschränkt sein. In den der Druckzone 5 in Bewegungsrichtung des Formzylinders ϕ vor- und nachgelagerten Bereichen könnte der Farbabstreifkörper durchaus deutlich größere Bereiche oder gar die ganze Breite des Formzylinders überdecken. Dieser Umstand bedeutet jedoch keineswegs, dass der Farbstreifkörper 16 mit seiner ganzen, dem Formzylinder 1 zugewandten Grenzfläche eine Berührungsfläche oder für die Zwecke dieser Anmeldung Farbabstreiffläche bildet. So können Teile der dem Formzylinder zugewandten Seite des Farbabstreifkörpers 15 auf dem Formzylinder 1 aufliegen und damit eine Abstreiffläche 16 bilden, während andere Teile der dem Formzylinder 1 zugewandten Seite noch einen Abstand zur Umfangsfläche des Formzylinders haben und damit zwar keine Farbe unmittelbar abstreifen, aber sich vom Formzylinder lösende Farbtropfen abfangen können und damit als eine weitere im Abstreifkörper integrierte Spritzblende 17 dienen. Dieser Effekt kann dadurch herbeigeführt werden, dass die dem Formzylinder zugewandete Seite des Farbabstreifkörpers 15 profiliert ist.In view of the possible presence of the impression roller 2 in the region of the printing zone 5, the extent of the ink scraping body 15 in the region of the printing zone should be limited to the axial z edge regions of the forme cylinder. In the pressure zone 5 in the direction of movement of the forme cylinder φ upstream and downstream areas of Farbabstreifkörper could cover much larger areas or even the entire width of the forme cylinder. However, this circumstance by no means means that the color-stripping body 16 with its entire interface facing the forme cylinder 1 forms a contact surface or, for the purposes of this application, color stripping surface. Thus, parts of the forme cylinder side facing the Farbabstreifkörpers 15 rest on the forme cylinder 1 and thus form a scraper surface 16, while other parts of the forme cylinder 1 side facing still have a distance from the peripheral surface of the forme cylinder and thus indeed do not strip paint directly, but itself From the forme cylinder dissolving color drops can intercept and thus serve as another in the stripping body integrated sprayer 17. This effect can be brought about by the fact that the side of the Farbabstreifkörpers 15 facing the forme cylinder is profiled.

In den Figuren 2a und 2b ist dies anhand eines Ausführungsbeispiels eines aus dem Tiefdruckwerk gelösten Abstreifkörpers 15 verdeutlicht. Dieser Abstreifkörper könnte die Position des in Figur 1 gezeigten Anstreifkörpers einnehmen. Die in den Figuren eingezeichneten Pfeile z, r und ϕ bezeichnen die Raumrichtungen, die der Abstreifkörper 15 in seiner Einbaulage im Zylinderkoordinatensystem des Formzylinders einnimmt. Der Farbabstreifkörper 15 ist streifenförmig ausgeprägt. Die Seite des Farbabstreifkörpers, die in der Einbaulage (vergleiche Figur 1) dem Formzylinder 1 zugewandt ist, ist derart profiliert, das sie in der radialen r Richtung des Formzylinders 1 zwei Noppen ausbildet. Die eine Noppe 29 dient als Haltelippe 29, während die andere Noppe in der Einbaulage des Abstreifkörpers 15 in Kontakt mit der Umfangsfläche des Formzylinders 1 steht und dabei die Abstreiffläche 16 ausbildet. Die größeren Teile der dem Formzylinder zugewandten Fläche des Abstreifkörpers 15 sind jedoch in der Einbaulage noch immer zum Formzylinder beabstandet. Diese Teile der Fläche dienen als Spritzblende 17 des Abstreifkörpers 15. Der dargestellte Abstreifkörper 15 verfügt noch über eine Arretierungsbohrung 18, in die in der Einbaulage des Abstreifkörpers ein Stift oder eine Schraube hereingreift, um zu verhindern, dass der Abstreifkörper 15 von dem Formatzylinder 1 bei seiner Drehbewegung mitgerissen wird.In the FIGS. 2a and 2b this is illustrated by means of an exemplary embodiment of a stripper body 15 released from the gravure printing unit. This wiper body could change the position of the FIG. 1 take the squirting body shown. The arrows z, r and φ in the figures indicate the spatial directions which the stripping body 15 assumes in its installed position in the cylindrical coordinate system of the forme cylinder. The Farbabstreifkörper 15 is in a strip shape. The side of the Farbabstreifkörpers, in the installation position (see FIG. 1 ) facing the forme cylinder 1 is profiled in such a way that it forms two knobs in the radial direction of the forme cylinder 1. One nub 29 serves as a retaining lip 29, while the other nub is in the installed position of the Abstreifkörpers 15 in contact with the peripheral surface of the forme cylinder 1 and thereby the stripping surface sixteenth formed. However, the larger parts of the forme cylinder surface facing the Abstreifkörpers 15 are still spaced in the installed position to the forme cylinder. These parts of the surface serve as a splash panel 17 of the Abstreifkörpers 15. The shown Abstreifkörper 15 still has a locking hole 18, in which in the installation position of the stripper body a pin or a screw engages in order to prevent the Abstreifkörper 15 of the format cylinder 1 at his rotary motion is carried away.

Figur 3 zeigt diesen Abstreifkörper 15 in seiner Einbauposition in einem Schnitt entlang der Hauptsymmetrieachse des Formzylinders 1. Bei diesem Ausführungsbeispiel der Erfindung ist der Abstreifkörper 15 von dem Halter 19 gehalten. Der Formzylinder 1 besitzt einen Schaft 22. Die gezeigte Anordnung kann sich in spiegelverkehrter Anordnung ebenfalls am anderen axialen Ende der Formzylinders befinden. In dieser Figur sind zusätzliche Mittel 21, 22 zum Einstellen des Krümmungsradius der Abstreiffläche gezeigt. Sie bestehen in dem Federblech 21 sowie den Vorspannelementen 20, deren Funktion anhand der Figur 4, die diese Anordnung aus einem anderen Blickwinkel zeigt, klarer wird. Die Position der Vorspannelemente 20 ist veränderbar, so dass das Federblech 21 unterschiedlich gespannt werden kann. Bei dem gezeigten Ausführungsbeispiel vermittelt das Federblech dem Abstreifkörper 15 über das Druckelement 23 eine Kraft, die den Abstreifkörper 15 an den Formzylinder 1 und das Rakel 14 andrückt. An dem Druckelement 23 befindet sich auch der Arretierstift 24, der in die Arretierbohrung 18 des Abstreifkörpers 15 hineingreift. FIG. 3 shows this stripping body 15 in its installed position in a section along the main axis of symmetry of the forme cylinder 1. In this embodiment of the invention, the stripping body 15 is held by the holder 19. The forme cylinder 1 has a shaft 22. The arrangement shown can also be located in a mirror-inverted arrangement at the other axial end of the forme cylinder. In this figure, additional means 21, 22 for adjusting the radius of curvature of the wiper surface are shown. They consist in the spring plate 21 and the biasing elements 20, the function of the FIG. 4 , which shows this arrangement from a different angle, becomes clearer. The position of the biasing elements 20 is variable, so that the spring plate 21 can be clamped differently. In the embodiment shown, the spring plate gives the stripping body 15, via the pressure element 23, a force which presses the stripping body 15 against the forme cylinder 1 and the squeegee 14. On the pressure element 23 is also the locking pin 24, which engages in the locking hole 18 of the stripper 15.

Zu erwähnen ist noch der Halter 25 des Abstreifkörpers, an dem zumindest der Abstreifkörper 15 und die Spannelemente 21 angebracht sind. Der Übersicht halber zeigt noch einmal die Figur 5 eine Draufsicht auf eine erfindungsgemäße Vorrichtung von der Seite, die normalerweise durch den Presseur 2 eingenommen wird. Allfällige Halteelemente, Antriebsvorrichtungen und Ähnliches wurden hierbei nicht dargestellt. Die gestrichelten Linien bezeichnen verdeckte Kanten.Mention is still the holder 25 of the stripper on which at least the stripping body 15 and the clamping elements 21 are mounted. For the sake of clarity again shows the FIG. 5 a plan view of a device according to the invention from the side, which is normally occupied by the impression roller 2. Any retaining elements, drive devices and the like were not shown here. The dashed lines indicate hidden edges.

Die Linie 30 symbolisiert die Hauptsymmetrieachse des Formzylinders. Wenn der Presseur in seine Arbeitsstellung gebracht wird, fluchtet aus diesem Blickwinkel die Hauptsymmetrieachse des Presseurs mit der 30 des Formzylinders. Die Druckzone 5 ist in übertriebener .Rechteckform dargestellt.Line 30 symbolizes the main axis of symmetry of the forme cylinder. When the impression roller is brought into its working position, the main axis of symmetry of the impression roller is aligned with the forme cylinder from this angle. The pressure zone 5 is shown in an exaggerated rectangular shape.

Sie überstreicht nicht die gesamte Breite des Formzylinders, so dass an den axialen Enden des Formzylinders noch Platz für den Spritzschutz verbleibt. In der Regel sind erfindungsgemäße Druckwerke Bestandteile von Mehrfarben Reihentiefdruckmaschinen. Der Verpackungsdruck ist ein bevorzugtes Einsatzfeld dieser Maschinen. Ein Farbabstreifer 26 im Sinne dieser Druckschrift umfasst alle Vorrichtungselemente, die Farbe abstreifen sowie die dazu nötige Abstreiffläche 16 in ihrer Arbeitsposition halten und andrücken. In einem Tiefdruckwerk 4 wie es in den Figuren 3 und 4 gezeigt ist, gehören damit der Abstreifkörper 15 mit der Haltelippe 29, der Halter 25, die Vorspannelemente 21 und das Federblech 20 mit dem Druckelement 23 und dem Arretierstift 24 zum Farbabstreifer 26.It does not cover the entire width of the forme cylinder so that there is still room for the splash guard at the axial ends of the forme cylinder. As a rule, printing units according to the invention are components of multicolour series gravure printing machines. Packaging printing is a preferred field of application of these machines. A Farbabstreifer 26 in the sense of this document includes all device elements that strip paint and hold the necessary Abstreiffläche 16 in its working position and press. In a gravure printing 4 as in the Figures 3 and 4 shown, thus belong to the Abstreifkörper 15 with the retaining lip 29, the holder 25, the biasing members 21 and the spring plate 20 with the pressure element 23 and the locking pin 24 to the Farbabstreifer 26th

Die Grenzfläche des Farbabstreifkörpers 15, die in der Arbeitsposition auf dem Formzylinder 1 aufliegt, ist die Farbabstreiffläche. Bezugszeichenliste 1 Formzylinder 2 Presseur 3 Bedruckstoff 4 Tiefdruckwerk 5 Druckzone 6 erstes Farbreservoir 7 Einfärbewalze 8 Pfeil in Drehrichtung der Einfärbewalze 9 Einfärbewalzenspritzschutz 10 Farbwanne 11 zweites Farbreservoir 12 Spritzblende zwischen Farbwanne und Rakelhalter 13 Rakelhalter 14 Rakel 15 Abstreifkörper 16 Abstreiffläche 17 zweiter Spritzschutz 18 Arretierungsbohrung 19 Halterung des zweiten Spritzschutzes 20 Vorspannelemente 21 Federblech 22 Schaft des Formzylinders 23 Druckelement 24 Arretierstift für den Abstreifkörper 25 Halter 26 Farbabstreifer 27 zweiter Spritzschutz 28 Stege am zweiten Spritzschutz 29 Haltelippe des Abstreifkörpers / Noppen 30 Hauptsymmetrieachse r radiale Richtung des Formzylinders z axiale Richtung des Formzylinders ϕ Laufrichtung des Formzylinders (Umfangsrichtung) The interface of the Farbabstreifkörpers 15, which rests in the working position on the forme cylinder 1, is the Farbabstreiffläche. LIST OF REFERENCE NUMBERS 1 form cylinder 2 impression roller 3 substrate 4 Gravure printing unit 5 pressure zone 6 first color reservoir 7 inking 8th Arrow in the direction of rotation of the inking roller 9 Einfärbewalzenspritzschutz 10 paint tray 11 second color reservoir 12 Spray panel between ink tray and squeegee holder 13 squeegee holder 14 doctor 15 scraper 16 scraping 17 second splash guard 18 fixing bore 19 Holder of the second splash guard 20 biasing members 21 spring plate 22 Shank of the forme cylinder 23 pressure element 24 Locking pin for the stripper body 25 holder 26 Farbabstreifer 27 second splash guard 28 Webs on the second splash guard 29 Retaining lip of the stripper body / pimples 30 Main axis of symmetry r radial direction of the forme cylinder z axial direction of the forme cylinder φ Running direction of the forme cylinder (circumferential direction)

Claims (17)

  1. Gravure printing unit (4) comprising a gravure cylinder (1) containing (1) at least an ink wiper (26) which contains a ink wiping surface (16) which is in at least in contact with some parts of the peripheral area of the gravure cylinder (1),
    whereby the radius of curvature of the ink wiping surface (16) is adjustable to the radius of curvature of the gravure cylinder (1) over partial adjustment ranges of its extension in the circumferential direction (ϕ) of the gravure cylinder (1),
    characterised in that
    - the ink wiping surface (16) touches the gravure cylinder only at one edge of the gravure cylinder (1)
    - and the ink wiper (26) shows media for adjustment of the bending radius (21,20) which presses the ink wiping surface (16) to the peripheral area of the gravure cylinder (1).
  2. Gravure printing unit (4) according to claim 1,
    characterised in that
    the ink wiping surface (16) is an interface of a least one wiping body (15) which (15) consists of a flexible and/or material which is changeable in design.
  3. Gravure printing unit (4) according to claim 2,
    characterised in that
    the ink wiping surface (15) consists of Ethylene-Propylen-Dlen-Monomer rubber (EPDM).
  4. Gravure printing unit (4) according to the preceding claim,
    characterised in that
    the ink wiper (26) comprises spring elements (20) pressing the ink wiping surface (16) on the peripheral area of the gravure cylinder (1), whereby they (20) provide at least a part of the whole contact force between the ink wiping surface (16) and the gravure cylinder (1).
  5. Gravure printing unit (4) according to the preceding claim,
    characterised by
    spring elements (21) which are pre-stressed by clamping elements (20) whereby the spring elements (21) are arranged in an angle range of the peripheral area of the gravure cylinder parallel to the peripheral area of the gravure cylinder.
  6. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the ink wiping surface (16) is an interface of a body (15) made of a material which is profiled in the radial direction (ϕ) of the gravure cylinder (1) in such a way that the ink wiping surface (16) can be overlie on the gravure cylinder (1) while at least another interface of the body (15) which is turned to the gravure cylinder (1) discloses a distance to the gravure cylinder (1).
  7. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the length of the ink wiping surface (16) in peripheral direction (ϕ) of the gravure cylinder (1) amounts to at least 10 cm.
  8. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the length of the ink wiping surface (16) in peripheral direction (ϕ) of the gravure cylinder (1) amounts to at least 20 cm.
  9. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the length of the ink wiping surface (16) in peripheral direction (ϕ) of the gravure cylinder (1) amounts to at least 30 cm.
  10. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the ink wiping surface (16) is an interface of a body (15) which (15) graps beyond a doctor blade in the peripheral direction of the gravure cylinder which (14) extends along the axial direction of the gravure cylinder and which (14) can be engaged against the gravure cylinder (1).
  11. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the printing zone (5) between the impression roller (2) and the gravure cylinder (1) is less than the whole width of the gravure cylinder in its axial direction (z).
  12. Gravure printing unit (4) according to the preceding claim,
    characterised in that
    the ink wiping surface (16) gribs over the printing zone (5) in peripheral direction (ϕ) of the gravure cylinder (1) which has a distance to the ink wiping surface (16) in axial direction (z) of the gravure cylinder (1).
  13. Gravure printing unit (4) according to one of the preceding claims,
    characterised in that
    the ink wiping surface (16) extends in peripheral direction (ϕ) of the gravure cylinder (1) to the effective range of a second splash guard device (27).
  14. Gravure printing unit (4) according to the preceding claim,
    characterised in that
    the effective range of the second splash guard device (27) comprises a bigger part of the axial expansion of the gravure cylinder (1).
  15. Gravure printing unit (4) according to the three preceding claims,
    characterised in that
    the second splash guard (27) is arranged to at least one ink reservoir (6, 11) in such a way that it controls the escape of ink drops from this ink reservoir (6, 11).
  16. Gravure printing machine (4) comprising at least a gravure printing unit (4) according to one of the preceding claims.
  17. Process for exchanging an old gravure cylinder (1) of a gravure printing unit (4) by a new gravure cylinder (1) of another shape,
    - whereby (4) an ink wiper (26) which comprises an ink wiping surface (16) which can be brought into contact with at least parts of the new gravure cylinder (1) is pushed against the new gravure cylinder (1)
    - and the radius of curvature of the ink wiping surface (16) is adjustable regarding the radius of curvature of the gravure cylinder (1) at least over parts of its expansion in peripheral direction (ϕ) of the gravure cylinder (1),
    characterised in that
    - the ink wiping surface (16) contacts the gravure cylinder only at one edge of the gravure cylinder (1)
    - and the radius of curvature of the ink wiper (26) is adjustable by adjustment means of the radius of curvature (21, 20) whereby the adjustment means of the radius of curvature (21, 20) pushes the ink wiping surface (16) against the peripheral area of the gravure cylinder (1).
EP05819396A 2004-11-23 2005-11-09 Gravure printing unit with a doctor for the printing cylinder gravure printing machine and method for exchange of a printing cylinder Not-in-force EP1817167B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004056631A DE102004056631B3 (en) 2004-11-23 2004-11-23 Gravure printing unit with a scraper for the forme cylinder
PCT/EP2005/012035 WO2006056323A1 (en) 2004-11-23 2005-11-09 Gravure printing unit with a doctor for the printing cylinder gravure printing machine and method for exchange of a printing cylinder

Publications (2)

Publication Number Publication Date
EP1817167A1 EP1817167A1 (en) 2007-08-15
EP1817167B1 true EP1817167B1 (en) 2008-05-21

Family

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Family Applications (1)

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EP05819396A Not-in-force EP1817167B1 (en) 2004-11-23 2005-11-09 Gravure printing unit with a doctor for the printing cylinder gravure printing machine and method for exchange of a printing cylinder

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EP (1) EP1817167B1 (en)
AT (1) ATE396046T1 (en)
DE (2) DE102004056631B3 (en)
WO (1) WO2006056323A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102011120996A1 (en) * 2011-12-14 2013-06-20 Gallus Stanz- Und Druckmaschinen Gmbh Gravure printing unit with splash guard

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684028A (en) * 1948-11-10 1954-07-20 Hoe & Co R Cylinder housing means for intaglio printing machines
US2717550A (en) * 1951-11-29 1955-09-13 Publication Corp End seal for rotary intaglio fountain
JP2604502Y2 (en) * 1992-11-30 2000-05-22 株式会社小森コーポレーション Printing machine cylinder cleaning device
DE9412586U1 (en) * 1994-08-04 1995-11-30 Windmoeller & Hoelscher Gravure printing unit for a rotary printing press
DE10018995A1 (en) * 2000-04-17 2001-11-08 Windmoeller & Hoelscher Printing press
JP2003276156A (en) * 2002-03-26 2003-09-30 Murata Mfg Co Ltd Doctor blade, gravure printing press, and method for producing laminated electronic part
JP2004351718A (en) * 2003-05-28 2004-12-16 Murata Mfg Co Ltd Method for manufacturing gravure printing device and laminated electronic component using this device

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DE502005004223D1 (en) 2008-07-03
DE102004056631B3 (en) 2006-02-02
EP1817167A1 (en) 2007-08-15
WO2006056323A1 (en) 2006-06-01
ATE396046T1 (en) 2008-06-15

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