EP0663293B1 - Device for inking an engraved roll - Google Patents
Device for inking an engraved roll Download PDFInfo
- Publication number
- EP0663293B1 EP0663293B1 EP95100223A EP95100223A EP0663293B1 EP 0663293 B1 EP0663293 B1 EP 0663293B1 EP 95100223 A EP95100223 A EP 95100223A EP 95100223 A EP95100223 A EP 95100223A EP 0663293 B1 EP0663293 B1 EP 0663293B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- arrangement according
- doctor
- chamber
- chamber body
- 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.)
- Revoked
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/027—Ink rail devices for inking ink rollers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S101/00—Printing
- Y10S101/34—Means to agitate ink in a reservoir
Definitions
- the invention relates to a device for coloring an anilox roller according to the preamble of claim 1.
- a chambered doctor blade is known from a short inking unit (EP 0 315 091 B1), whose ink chamber by a doctor roller, a chamber body with a circular Interior, two doctor blades as a working doctor blade with a negative angle of attack or closing squeegee with positive angle of attack and two side walls is limited and a cylindrical, rotatable and in its Distance to anilox roller includes changeable profile body.
- doctor blade occurs in the ink chamber in the for inking the anilox roller important area between the gap of the profile body and the working squeegee a color depletion, and the narrowing of the Flow cross-section in the gap favors color swirls and an increase in temperature the color and hinder the formation of a laminar Ink flow in the ink chamber.
- the arrangement requires one in terms of deflection due to the large color print in the gap sufficiently dimensioned profile body a relatively large color chamber and its color density, a radial one Adjustment allowing storage in the side walls accordingly high technical effort.
- the invention has for its object a device for coloring to provide an anilox roller according to the preamble of claim 1, which under Avoiding the disadvantages of the prior art with simple technical Medium enables a printing-appropriate inking of the anilox roller.
- the invention enables in the absence of cross-sectional constrictions in the ink chamber as well as avoiding protrusions and recesses their extent in connection with the special ink supply in the least Flow area center area of the Ink chamber or tangential or on the face of the inking roller in its direction of rotation and, if necessary, axial color removal, the formation of one to immediately laminar flow reaching the working squeegee in the form of a Ink existing roller with the maximum ink density in for inking the anilox roller is a particularly important area in front of the working squeegee.
- Adequate filling of the ink chamber with ongoing replacement of the ink consumption for the printing process is already a small color overprint favored in the ink chamber, since on the other hand with increasing Printing speed especially the flow rate and the ink concentration on the circumference of the faster rotating ink roller Coloring of the anilox roller increased insensitively.
- FIG. 1 shows one Chamber doctor blade an ink chamber 1, which by an ink roller or forme cylinder functioning anilox roller 2, two doctor blades in the form of a working doctor 3 with a direction of rotation indicated by an arrow the anilox roller 1 negative angle of attack ⁇ and a closing doctor with positive angle of attack ⁇ , a chamber body 5 with a circular interior and two side walls 6; 7 (Fig. 4) is limited.
- the ink supply is regulated so that in the Ink chamber 1 sets a slight excess pressure.
- the ink in the ink chamber 1 is due to adhesion from the anilox roller 2 set in rotation as a laminar flow, so that a rotating one Color existing roller - that is, ink roller 9 - which forms an intensive Inking the anilox roller 2 in front of the squeegee 3 causes this effect increases automatically with increasing speed of the anilox roller 2.
- a separate one To ensure adjustability of the doctor blade, which is why in a first Variant of the chamber body 5 shown in dashed lines in one opposite its circular interior arranged tangentially displaceable Squeegee holder 10 and a main body supporting the closing squeegee 4 11 divided in two and in a further, dash-dotted variant by a separate, analogous to the doctor blade holder 10 Doctor blade holder 12 is divided into three parts.
- Fig. 2 the solution according to Fig. 1 is varied such that the beginning of the inking zone is determined by a gap S 1 formed between an elongated interior of the chamber body 5 and the anilox roller 2, the one against the direction of rotation of the anilox roller 2 one in a slot the basic body 11 I or the separate locking blade holder 12 I arranged locking blade 13 is arranged with a negative angle of attack ⁇ , for the latter according to dash-dotted lines with a corresponding correction of the angle of attack ⁇ I there is also an attachment option on the outside.
- Fig. 3 shows at a below the anilox roller 2 arranged chamber doctor blade with respect to FIG. 2 is a minimal designed gap S 2, of permitting the outside through a to the longitudinal side of the chamber body 5 II or a separate adjustment of the gap S 2 separated side part 14 inclined color flow surface 15 is limited, which is equipped with a color collecting channel 16 with color return 17.
- Fig. 5 shows an embodiment for a complete chamber doctor under Use of the solution variant from FIG. 1.
- the base body 11 of the chamber body 5 with the aid of a locking device shown in FIG. 6 releasably attached to a squeegee beam 18 in such a way that in two recesses 19 widening inside; 20 in the base body 11 with a fixed the fitting 21 connected to the squeegee and one on one in the squeegee 18 attached studs 22 pivotally mounted lever 23 each engages positively, the latter through one on the doctor bar 18 articulated pressure-operated working cylinder 24 is actuated.
- the working squeegee holder is used to adjust the two doctor blades separately 10 or closing blade holder 12 each in the direction of displacement acting, guided in the doctor bar 18, with a handle 25; 26 with Position indicator for adjusting travel equipped adjusting spindle 27; 28 on.
- the doctor bar 18 (FIG. 5) is on both sides in one with the frame a common pipe 31 connected holder 32 pivotally mounted has a swiveling movement against the anilox roller, adjustable stop 33 for a guided in the tube 31, with means for Display of the travel path equipped adjusting spindle 34 and a Swivel bearing 35 for a pressure medium-operated one articulated on the squeegee beam 18 Working cylinder 36.
- the doctor bar 18 can be damaged by the means described of the anilox roller 2 and the doctor blades avoiding multi-stage, with a little pressure on the anilox roller.
- FIG. 4 shows the chamber body that seals the ink chamber 1 5 and not shown, the doctor blade covering or on the Anilox roller face walls 6; 7, the side wall 7 axially opposite the ink inlet 8 with a ink outlet 37 is equipped so that compared to a slight excess of color the ink flow to be attributed to the ink consumption for the printing process conveniently in the center of the rotating with minimal peripheral speed Ink roller takes place.
- the surfaces of the doctor blades delimiting the ink chamber 1, the chamber body 5 and the side walls 6; 7 aerodynamically smooth be executed.
- the wall of the ink chamber 1 can be made to repel the paint.
- Fig. 1 can be used for both directions of rotation of the anilox roller 2, wherein the two doctor blades each function as a working and closing doctor blade Swap (3; 4).
- the invention is not limited to a working squeegee with a negative Angle of attack bound, as far as with a positive angle of attack by appropriate design of the ink chamber, for example in Based on the area of the closing squeegee of Fig. 2, the emergence of ink roller according to the invention is ensured.
- Fig. 9 the ink supply compared to Fig. 1 is changed so that the chamber body 5 III is equipped with at least one tangentially opening into its interior bore 38 which has 5 III thread on the outside of the chamber body for the connection of a paint line.
- the bore 38 can also be replaced by a longitudinal slot, which, if necessary, is connected to a longitudinal bore of the chamber body with a larger cross section for better ink supply.
- the longitudinal bore is connected to the front of the chamber body 5 III directly or to the longitudinal side thereof via one or more connecting bores to the paint line.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Einfärbung einer Rasterwalze
nach dem Oberbegriff von Anspruch 1.The invention relates to a device for coloring an anilox roller
according to the preamble of
Bekannt ist von einem Kurzfarbwerk eine Kammerrakel (EP 0 315 091 B1), deren Farbkammer durch eine Rakelwalze, ein Kammerkörper mit kreisförmigem Innenraum, zwei Rakelmesser als Arbeitsrakel mit negativem Anstellwinkel bzw. Schließrakel mit positivem Anstellwinkel und zwei Seitenwände begrenzt ist und einen zylinderförmigen, rotierbar und in seinem Abstand zur Rasterwalze veränderbar angeordneten Profilkörper enthält.A chambered doctor blade is known from a short inking unit (EP 0 315 091 B1), whose ink chamber by a doctor roller, a chamber body with a circular Interior, two doctor blades as a working doctor blade with a negative angle of attack or closing squeegee with positive angle of attack and two side walls is limited and a cylindrical, rotatable and in its Distance to anilox roller includes changeable profile body.
Bei dieser Kammerrakel tritt in der Farbkammer in dem für die Einfärbung der Rasterwalze wichtigen Bereich zwischen dem Spalt des Profilkörpers und dem Arbeitsrakel eine Farbverarmung ein, und die Verengung des Strömungsquerschnittes im Spalt begünstigt Farbwirbel sowie eine Temperaturerhöhung der Farbe und behindert die Entstehung einer laminaren Farbströmung in der Farbkammer.In this chamber doctor blade occurs in the ink chamber in the for inking the anilox roller important area between the gap of the profile body and the working squeegee a color depletion, and the narrowing of the Flow cross-section in the gap favors color swirls and an increase in temperature the color and hinder the formation of a laminar Ink flow in the ink chamber.
Außerdem erfordert die Anordnung eines hinsichtlich einer Durchbiegung infolge des großen Farbdruckes im Spalt hinreichend dimensionierten Profilkörpers eine relativ große Farbkammer und dessen Farbdichte, eine radiale Verstellung ermöglichende Lagerung in den Seitenwänden einen entsprechend hohen technischen Aufwand.In addition, the arrangement requires one in terms of deflection due to the large color print in the gap sufficiently dimensioned profile body a relatively large color chamber and its color density, a radial one Adjustment allowing storage in the side walls accordingly high technical effort.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Einfärbung
einer Rasterwalze gemäß Oberbegriff von Anspruch 1 zu schaffen, die unter
Vermeidung der Nachteile des Standes der Technik mit einfachen technischen
Mitteln eine druckgerechte Einfärbung der Rasterwalze ermöglicht.The invention has for its object a device for coloring
to provide an anilox roller according to the preamble of
Diese Aufgabe wird durch die kennzeichnenden Merkmale von Anspruch 1
gelöst.This object is achieved by the characterizing features of
Die Erfindung ermöglicht durch das Fehlen von Querschnittverengungen in der Farbkammer sowie Vermeidung von Vorsprüngen und Aussparungen an deren Umfang in Verbindung mit der speziellen Farbzuführung im die geringste Strömungsgeschwindigkeit aufweisenden Zentrumsbereich der Farbkammer oder tangential bzw. stirnseitig zur Farbwalze in deren Drehrichtung und ggf. axialen Farbabführung die Ausbildung einer bis unmittelbar an das Arbeitsrakel reichenden laminaren Strömung in Form einer aus Farbe bestehenden Walze mit der maximalen Farbdichte im für die Einfärbung der Rasterwalze besonders bedeutungsvollen Bereich vor der Arbeitsrakel.The invention enables in the absence of cross-sectional constrictions in the ink chamber as well as avoiding protrusions and recesses their extent in connection with the special ink supply in the least Flow area center area of the Ink chamber or tangential or on the face of the inking roller in its direction of rotation and, if necessary, axial color removal, the formation of one to immediately laminar flow reaching the working squeegee in the form of a Ink existing roller with the maximum ink density in for inking the anilox roller is a particularly important area in front of the working squeegee.
Eine hinreichende Füllung der Farbkammer bei laufendem Ersatz des Farbverbrauches für den Druckprozeß wird bereits durch einen geringen Farbüberdruck in der Farbkammer begünstigt, da andererseits mit steigender Druckgeschwindigkeit sich insbesondere die Strömungsgeschwindigkeit und die Farbkonzentration am Umfang der schneller rotierenden Farbwalze die Einfärbung der Rasterwalze insensivierend erhöht.Adequate filling of the ink chamber with ongoing replacement of the ink consumption for the printing process is already a small color overprint favored in the ink chamber, since on the other hand with increasing Printing speed especially the flow rate and the ink concentration on the circumference of the faster rotating ink roller Coloring of the anilox roller increased insensitively.
Die Unteransprüche enthalten weitere vorteilhafte Ausgestaltungen der Erfindung.The sub-claims contain further advantageous refinements of Invention.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. In den zugehörigen Zeichnungen zeigen:
- Fig 1:
- eine erfindungsgemäß gestaltete Kammerrakel im schematischen Querschnitt mit einer axialen Farbzu- und - abführung
- Fig. 2:
- eine Variante zu Fig. 1 mit einer Änderung im Bereich der Schließrakel
- Fig. 3:
- eine Variante zu Fig. 2 ohne Schließrakel
- Fig. 4:
- den Schnitt A-A von Fig. 1
- Fig. 5:
- ein Ausführungsbeispiel der erfindungsgemäßen Lösung nach Fig. 1
- Fig. 6:
- den Schnitt B-B von Fig. 5
- Fig. 7:
- die Ansicht X von Fig. 5
- Fig. 8:
- den Schnitt C-C von Fig. 7
- Fig. 9:
- eine Variante zu Fig. 1 mit einer tangentialen Farbzuführung
- Fig. 10:
- eine Variante zu Fig. 1 mit einer stirnseitigen Farbzuführung
- Fig. 11:
- den Schnitt D-D von Fig. 10
- Fig 1:
- a chambered doctor blade designed according to the invention in a schematic cross section with an axial ink supply and discharge
- Fig. 2:
- a variant of Fig. 1 with a change in the area of the doctor blade
- Fig. 3:
- a variant of Fig. 2 without a doctor blade
- Fig. 4:
- the section AA of Fig. 1st
- Fig. 5:
- an embodiment of the solution according to the invention of FIG. 1st
- Fig. 6:
- the section BB of Fig. 5th
- Fig. 7:
- the view X of FIG. 5
- Fig. 8:
- the section CC of Fig. 7th
- Fig. 9:
- a variant of Fig. 1 with a tangential ink supply
- Fig. 10:
- a variant of Fig. 1 with a front ink supply
- Fig. 11:
- the section DD of FIG. 10
Die schematische Darstellung der Erfindung in Fig. 1 zeigt von einer
Kammerrakel eine Farbkammer 1, die durch eine als Farbwalze oder Formzylinder
fungierende Rasterwalze 2, zwei Rakelmesser in Form einer Arbeitsrakel
3 mit einem bezüglich der mit einem Pfeil angegebenen Drehrichtung
der Rasterwalze 1 negativen Anstellwinkel α und einer Schließrakel mit
positivem Anstellwinkel β, ein Kammerkörper 5 mit kreisförmigem Innenraum
sowie zwei Seitenwände 6; 7 (Fig. 4) begrenzt ist.The schematic representation of the invention in Fig. 1 shows one
Chamber doctor blade an
Im Zentrumsbereich der Farbkammer 1 ist in der Seitenwand 6 ein Farbzulauf
8 angeordnet, wobei die Farbzufuhr so geregelt ist, daß sich in der
Farbkammer 1 ein geringer Überdruck einstellt.In the center area of the
Die Farbe in der Farbkammer 1 wird infolge Adhäsion von der Rasterwalze 2
als laminare Strömung in Drehung versetzt, so daß sich eine rotierende aus
Farbe bestehende Walze - sprich Farbwalze 9 - ausbildet, die eine intensive
Einfärbung der Rasterwalze 2 vor dem Arbeitsrakel 3 bewirkt, wobei sich
dieser Effekt mit steigender Drehzahl der Rasterwalze 2 selbsttätig erhöht.The ink in the
Hinsichtlich der Einstellbarkeit der Kammerrakel ist es gegenüber der in Fig.
1 dargestellten Grundvariante mit einer gemeinsamen Verstellung beider
Rakelmesser über den ungeteilten Kammerkörper 5 günstiger, eine getrennte
Verstellbarkeit der Rakelmesser zu gewährleisten, wozu in einer ersten,
gestrichelt dargestellten Variante der Kammerkörper 5 in einem gegenüber
seinem kreisförmigen Innenraum tangierend verschiebbar angeordneten
Arbeitsrakelhalter 10 und einen die Schließrakel 4 tragenden Grundkörper
11 zweigeteilt und in einer weiteren, strichpunktiert dargestellten Variante
durch einen getrennten, analog zum Arbeitsrakelhalter 10 ausgeführten
Schließrakelhalter 12 dreigeteilt ist.With regard to the adjustability of the chamber doctor blade, it is compared to that shown in Fig.
1 shown basic variant with a common adjustment of both
Doctor knife over the
In Fig. 2 ist die Lösung gemäß Fig. 1 dahingehend variiert, daß der Anfang
der Einfärbezone durch einen zwischen einem verlängerten Innenraum des
Kammerkörpers 5 und der Rasterwalze 2 gebildeten Spalt S1 bestimmt ist,
dem entgegen der Drehrichtung der Rasterwalze 2 eine in einem Schlitz des
Grundkörpers 11I bzw. des getrennten Schließrakelhalters 12I angeordnete
Schließrakel 13 mit einem negativen Anstellwinkel γ vorgeordnet ist, wobei
für letztere gemäß strichpunktierter Darstellung unter entsprechender Korrektur
des Anstellwinkels γI auch eine Befestigungsmöglichkeit an der
Außenseite besteht.In Fig. 2 the solution according to Fig. 1 is varied such that the beginning of the inking zone is determined by a
Fig. 3 zeigt bei einer unterhalb der Rasterwalze 2 angeordneten Kammerrakel
gegenüber Fig. 2 einen minimal gestalteten Spalt S2, der außen durch
eine zur Längsseite des Kammerkörpers 5II bzw. eines eine gesonderte
Verstellung des Spaltes S2 ermöglichenden abgetrennten Seitenteiles 14
geneigte Farbablauffläche 15 begrenzt ist, die mit einer Farbsammelrinne 16
mit Farbrücklauf 17 ausgestattet ist. Fig. 3 shows at a below the
In Fig. 3 ist in Abhängigkeit von der Viscosität der Farbe am Spalt S2 nur
ein geringer Farbaustritt zu verzeichnen, so daß in Verbindung mit der
beschriebenen Gestaltung auf eine Schließrakel völlig verzichtet werden
kann.In Fig. 3, depending on the viscosity of the ink at the
Fig. 5 zeigt ein Ausführungsbeispiel für eine komplette Kammerrakel unter
Verwendung der Lösungsvariante von Fig. 1. Dabei ist der Grundkörper 11
des Kammerkörpers 5 mit Hilfe einer in Fig. 6 dargestellten Arretiereinrichtung
an einem Rakelbalken 18 derart lösbar befestigt, daß in zwei sich nach
innen erweiternde Aussparungen 19; 20 im Grundkörper 11 ein fest mit
dem Rakelbalken verbundenes Formstück 21 und ein auf einem im Rakelbalken
18 befestigten Stehbolzen 22 schwenkbar gelagerter Hebel 23 jeweils
formschlüssig eingreift, wobei letzterer durch einen am Rakelbalken
18 angelenkten druckmittelbetriebenen Arbeitszylinder 24 betätigt wird.Fig. 5 shows an embodiment for a complete chamber doctor under
Use of the solution variant from FIG. 1. Here, the
Zur getrennten Einstellbarkeit der beiden Rakelmesser greift am Arbeitsrakelhalter
10 bzw. Schließrakelhalter 12 jeweils eine in deren Verschieberichtung
wirkende, im Rakelbalken 18 geführte, mit einem Griff 25; 26 mit
Positionsanzeige für den Stellweg ausgestattete Stellspindel 27; 28 an.The working squeegee holder is used to adjust the two doctor blades separately
10 or
Um beispielsweise im Betriebszustand Schwingungen der für die Einfärbung
der Rasterwalze 2 bedeutungsvollen Arbeitsrakel 3 auszuschließen, ist am
Rakelbalken 18 mindestens ein den Arbeitsrakelhalter 10 fixierender
Klemmhebel 29 den Wechsel der Arbeitsrakel 3 ermöglichend schwenkbar
angeordnet, der günstigerweise von einem am Rakelbalken 18 befestigten,
sowohl eine Hub- als auch eine Schwenkbewegung ausführenden, druckmittelbetriebenen
Arbeitszylinder 30 betätigt wird (Fig. 7;8).In order, for example, to vibrate in the operating state for coloring
to exclude the
Der Rakelbalken 18 (Fig. 5) ist beiderseitig in je einem mit dem Gestell über
ein gemeinsames Rohr 31 verbundenen Halter 32 schwenkbar gelagert und
besitzt einen seine Schwenkbewegung gegen die Rasterwalze begrenzenden,
einstellbaren Anschlag 33 für eine im Rohr 31 geführte, mit Mitteln zur
Anzeige des Stellweges ausgestattete Stellspindel 34 sowie ein
Schwenklager 35 für einen am Rakelbalken 18 angelenkten, druckmittelbetriebenen
Arbeitszylinder 36.The doctor bar 18 (FIG. 5) is on both sides in one with the frame
a
Durch die beschriebenen Mittel kann der Rakelbalken 18 Beschädigungen
von der Rasterwalze 2 und den Rakelmessern vermeidend mehrstufig, mit
einem geringen Druck an die Rasterwalze angestellt werden.The
Letztlich zeigt Fig. 4 die die Farbkammer 1 abdichtenden, den Kammerkörper
5 sowie nicht dargestellt, die Rakelmesser abdeckenden bzw. an der
Rasterwalze stirnseitig anliegenden Seitenwände 6; 7, wobei die Seitenwand
7 dem Farbzulauf 8 axial gegenüberliegend mit einem Farbablauf 37
ausgestattet ist, so daß der auf einen geringfügigen Farbüberschuß gegenüber
dem Farbverbrauch für den Druckprozeß zurückzuführende Farbstrom
günstig im mit minimaler Umfangsgeschwindigkeit rotierenden Zentrum der
Farbwalze erfolgt.Finally, FIG. 4 shows the chamber body that seals the
Auch sollten die die Farbkammer 1 begrenzenden Flächen der Rakelmesser,
des Kammerkörpers 5 und der Seitenwände 6; 7 strömungsgünstig glatt
ausgeführt sein. Die Wandung der Farbkammer 1 kann farbabstoßend ausgeführt sein.The surfaces of the doctor blades delimiting the
Fig. 1 ist für beide Drehrichtungen der Rasterwalze 2 einsetzbar, wobei
jeweils die beiden Rakelmesser ihre Funktion als Arbeits- und als Schließrakel
(3; 4) tauschen.Fig. 1 can be used for both directions of rotation of the
Die Erfindung ist nicht ausschließlich an eine Arbeitsrakel mit negativem Anstellwinkel gebunden, soweit auch mit einem positiven Anstellwinkel durch eine entsprechende Gestaltung der Farbkammer, beispielsweise in Anlehnung an den Bereich der Schließrakel von Fig. 2, das Entstehen der erfindungsgemäßen Farbwalze sichergestellt ist.The invention is not limited to a working squeegee with a negative Angle of attack bound, as far as with a positive angle of attack by appropriate design of the ink chamber, for example in Based on the area of the closing squeegee of Fig. 2, the emergence of ink roller according to the invention is ensured.
In Fig. 9 ist der Farbzulauf gegenüber Fig. 1 dahingehend geändert, daß der
Kammerkörper 5III mit mindestens einer tangential in dessen Innenraum
einmündenden Bohrung 38 ausgestattet ist, die an der Außenseite des
Kammerkörpers 5III Gewinde für den Anschluß einer Farbleitung besitzt.In Fig. 9, the ink supply compared to Fig. 1 is changed so that the
Auch kann in nicht dargestellter Weise die Bohrung 38 durch einen Längsschlitz,
der ggf. zwecks besserer Farbzuführung mit einer querschnittserweiterten
Längsbohrung des Kammerkörpers in Verbindung steht, ersetzt
werden. Die Längsbohrung ist stirnseitig des Kammerkörpers 5III direkt oder
zu diesem längsseitig über eine oder mehrere Verbindungsbohrungen an die
Farbleitung angeschlossen.In a manner not shown, the
Fig. 10 und 11 zeigen eine taschenförmige Aussparung 39 in einer Seitenwand
6III, der über eine Querbohrung 40 von außen die Farbe stirnseitig zur
Farbwalze 9 zugeführt wird und deren Übergang in die Farbkammer 1IV
strömungsgünstig gestaltet ist.10 and 11 show a pocket-shaped
Claims (32)
- Arrangement for inking a screen roller (2) of a rotary press having an ink chamber (1 to 1IV) which is arranged along the screen roller (2), has an opening pointing towards the screen roller (2), is sealed on its end face sides by side walls (6 to 6IV; 7) and has at least one ink inlet (8; 8'; 8'') and also a chamber body (5 to 5IV), the interior space of which is circular in cross section, characterised in that the ink inlet (8 to 8'') into the ink chamber (1 to 1IV) is shaped so as to render possible the formation of a cylinder (9) which consists of ink and is moved by the screen roller (2) so as to rotate in the operating state, and the ink chamber (1 to 1IV) has no cross-sectional constrictions and on its circumference has no projections and recesses.
- Arrangement according to claim 1, characterised in that the ink inlet (8) is shaped so as to introduce the ink into the ink chamber (1 to 1'') as far as possible in an axial manner, preferably centrically in relation to the cylinder (9) consisting of ink.
- Arrangement according to claim 1, characterised in that the ink inlet (8') is shaped so as to introduce the ink into the ink chamber (1''') as far as possible tangentially in relation to the cylinder (9) consisting of ink and in the direction of rotation of said cylinder (9).
- Arrangement according to claim 1, characterised in that the ink inlet (8'') is shaped so as to introduce the ink into the ink chamber (1IV) on an end face side in relation to the cylinder (9) consisting of ink.
- Arrangement according to claims 1 to 4, characterised in that an ink outlet (37) is shaped so as to discharge the ink out of the ink chamber (1 to 1IV) on an end face side, preferably centrically in relation to the cylinder (9) consisting of ink, when ink is supplied at an end face side on the opposite side thereto.
- Arrangement according to claims 1 to 5, characterised in that the ink chamber (1 to 1IV) is delimited in the direction of rotation of the screen roller (2) on the longitudinal side in relation to the latter by a working doctor (3) having a negative contact angle (α).
- Arrangement according to claims 1 to 6, characterised in that the ink chamber (1; 1'''; 1IV) is delimited in opposition to the direction of rotation of the screen roller (2) on the longitudinal side in relation to the latter by a closing doctor (4) having a positive contact angle (β).
- Arrangement according to claims 1 to 5, characterised in that the ink chamber (1') is delimited at a distance from the screen roller (2) in opposition to the direction of rotation of the screen roller (2) on the longitudinal side by the interior space of the chamber body (5') with the formation of a gap (S1; S2).
- Arrangement according to claim 8, characterised in that arranged in front of the gap (S1) in opposition to the direction of rotation of the screen roller (2) there is in addition a closing doctor (13; 13') which is connected to the chamber body (5') and preferably has a negative contact angle (γ; γ').
- Arrangement according to claim 9, characterised in that the closing doctor (13) is arranged in a slot of the chamber body (5').
- Arrangement according to claim 9, characterised in that the closing doctor (13') is secured to the longitudinal side of the chamber body (5').
- Arrangement according to claim 8, characterised in that in the case of a chambered doctor which is arranged underneath the screen roller (2) the chamber body (5'') has an outwardly inclined ink outlet face (15) on the longitudinal side relative to the gap (S2).
- Arrangement according to claim 12, characterised in that the ink outlet face (15) is provided with at least one ink-collecting groove (16) which, optionally, is provided with an ink return (17).
- Arrangement according to claim 1, characterised in that the ink supply to the ink chamber (1 to 1IV) is regulated as a function of an excess ink pressure in the ink chamber (1 to 1IV).
- Arrangement according to claim 1, characterised in that the ink chamber (1 to 1IV) has a smooth wall.
- Arrangement according to claim 1, characterised in that the ink chamber (1 to 1IV) has an ink-repellent wall.
- Arrangement according to claim 6, characterised in that the working doctor (3) is secured to the chamber body (5 to 5IV) in an adjustable manner.
- Arrangement according to claim 17, characterised in that a separate working doctor holder (10) is arranged so as to be displaceable tangentially in relation to the circular interior space of the chamber body (5 to 5IV).
- Arrangement according to claim 7, characterised in that the closing doctor (4) is secured to the chamber body (5 to 5'') in an adjustable manner.
- Arrangement according to claim 19, characterised in that a separate closing doctor holder (12; 12') is arranged so as to be displaceable tangentially in relation to the circular interior space of the chamber body (5 to 5IV).
- Arrangement according to claim 1, characterised in that the chamber body (5 to 5IV) can be set against the screen roller (2) and can be adjusted in relation thereto.
- Arrangement according to claims 17 to 20, characterised in that the chamber body (5 to 5IV) can be set against the screen roller (2), and the working doctor holder (10) and the closing doctor holder (12; 12') can be adjusted in relation to said screen roller (2) and, optionally, can in addition be fixed in the working position.
- Arrangement according to claim 22, characterised in that the chamber body (5) is secured to a doctor beam (18) which, in a multi-stage manner and so that it is adjustable by way of a stop (33), can be set against the screen roller (2) with a slight pressure, and acting upon the working and closing doctor holders (10; 12) there is a respective adjusting spindle (27; 28) which acts in the direction of displacement of said holders and is guided in the doctor beam (18).
- Arrangement according to claim 23, characterised in that arranged on the doctor beam (18) in a pivotable manner and so as to make it possible to exchange the working doctor (3) there is at least one clamping lever (29), which fixes the working doctor holder (10) and is advantageously actuated by means of a working cylinder (30) which is operated by a pressure medium.
- Arrangement according to claim 23, characterised in that arranged on the doctor beam (18) there are stop bodies which engage behind respective recesses (19; 20) of the chamber body (5) in a positive-locking manner and at least one stop body of which is mounted in a detachable manner so that the positive locking can be undone.
- Arrangement according to claim 25, characterised in that the detachable stop body is pivoted as a lever (23) in the doctor beam (18), articulated on which there is a working cylinder (24) which is operated by a pressure medium and is pivotably connected to the doctor beam (18).
- Arrangement according to claim 23, characterised in that the doctor beam (18) is pivoted in holders (32) which are fixedly connected to the frame and, in each case, are provided with an adjusting spindle (34), cooperating with the stop (33) secured to the doctor beam (18), and are also provided with a swivel bearing (35) of a working cylinder (36) which is operated by a pressure medium and is articulated on the doctor beam (18).
- Arrangement according to claims 1 to 5, characterised in that the side walls (6 to 6IV), which are provided with the ink inlet and outlet (8; 37) respectively are arranged so that they laterally cover the ink chamber (1 to 1IV) and radially seal in the ink in relation to the screen roller (2).
- Arrangement according to claims 2 and 5, characterised in that the ink inlet (8) and the ink outlet (37) are, in each case, constructed as an axial bore of a side wall (6 to 6'').
- Arrangement according to claim 2, characterised in that the ink inlet (8') is constructed as at least one bore (38) which is arranged in the chamber body (5''') and runs tangentially into the latter's interior space.
- Arrangement according to claim 3, characterised in that the ink inlet is constructed as a longitudinal slot which is arranged in the chamber body and runs tangentially into the latter's interior space.
- Arrangement according to claim 4, characterised in that the ink inlet (8'') is constructed in a side wall (6IV) as a recess (39) which is open towards the ink chamber (1IV), is pocket-shaped and communicates with a transverse bore (40).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4401365A DE4401365A1 (en) | 1994-01-18 | 1994-01-18 | Device for coloring an anilox roller |
| DE4401365 | 1994-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0663293A1 EP0663293A1 (en) | 1995-07-19 |
| EP0663293B1 true EP0663293B1 (en) | 1998-06-10 |
Family
ID=6508187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95100223A Revoked EP0663293B1 (en) | 1994-01-18 | 1995-01-10 | Device for inking an engraved roll |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5560294A (en) |
| EP (1) | EP0663293B1 (en) |
| JP (1) | JP2690279B2 (en) |
| DE (2) | DE4401365A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59507527D1 (en) * | 1995-04-12 | 2000-02-03 | Koenig & Bauer Ag | Inking unit for a rotary printing press |
| DE29718388U1 (en) | 1996-10-25 | 1997-12-18 | Koenig & Bauer Albert Ag | Paint box |
| DE59703075D1 (en) * | 1996-10-25 | 2001-04-12 | Koenig & Bauer Ag | COLOR BOX |
| JP3337225B2 (en) * | 1996-12-21 | 2002-10-21 | ケーニツヒ ウント バウエル アクチエンゲゼルシヤフト | Ink unit |
| JP3187063B2 (en) * | 1996-12-21 | 2001-07-11 | ケーニツヒ ウント バウエル アクチエンゲゼルシヤフト | Inkwell |
| DE19723458A1 (en) | 1997-06-04 | 1998-12-10 | Voith Sulzer Papiermasch Gmbh | Device and method for applying a liquid or pasty medium to a moving surface |
| US6119595A (en) * | 1997-10-06 | 2000-09-19 | R. J. Reynolds Tobacco Company | Gravure printing press with encapsulated ink applicator and method |
| DE19757897C1 (en) * | 1997-12-24 | 1999-07-22 | Koenig & Bauer Ag | Arrangement for an inking unit of a rotary printing press |
| DE19800840C2 (en) * | 1998-01-13 | 2002-05-16 | Koenig & Bauer Ag | Device for inking a roller |
| DE19826810A1 (en) * | 1998-06-16 | 1999-12-23 | Koenig & Bauer Ag | Method and device for ink supply |
| DE10143827A1 (en) * | 2001-09-07 | 2003-03-27 | Heidelberger Druckmasch Ag | Method for controlling the transfer of a quantity of medium between two rollers |
| USRE40160E1 (en) * | 2001-09-07 | 2008-03-25 | Heidelberger Druckmaschinen Ag | Method for controlling a quantity of medium transferable between two rollers |
| EP2251200A2 (en) * | 2002-04-25 | 2010-11-17 | Goss International Corporation | Integrated ink rail assembly for a printing press |
| DE102007027385B4 (en) * | 2007-06-11 | 2011-06-16 | Windmöller & Hölscher Kg | Ink chamber for an inking unit of a rotary printing press and method for producing such a ink chamber |
| DE102008019434B4 (en) | 2008-04-17 | 2013-08-22 | Hauni Maschinenbau Ag | Gluing of strips of material of the tobacco processing industry |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2399688A (en) * | 1942-03-09 | 1946-05-07 | Standard Register Co | Ink fountain |
| US3052183A (en) * | 1959-08-13 | 1962-09-04 | Miehle Goss Dexter Inc | Mechanism for applying a liquid to a rotary cylinder |
| US3631800A (en) * | 1968-07-30 | 1972-01-04 | Addressograph Multigraph | Ink system for printing machines |
| DE2264119C3 (en) * | 1972-12-29 | 1978-12-07 | Albert-Frankenthal Ag, 6710 Frankenthal | Inking meter of a printing machine inking unit |
| US4058058A (en) * | 1976-02-26 | 1977-11-15 | George Hantscho Company, Inc. | Ink fountain for printing presses |
| FI61147C (en) * | 1979-07-05 | 1982-06-10 | Waertsilae Oy Ab | ANORDNING VID DJUPTRYCKSMASKIN |
| DE3420412C2 (en) * | 1984-06-01 | 1995-08-10 | Voith Gmbh J M | Coating device for coating running webs |
| US4548840A (en) * | 1984-06-15 | 1985-10-22 | Graham Magnetics Incorporated | High speed coating |
| US4590855A (en) * | 1984-06-18 | 1986-05-27 | Printco Industries, Ltd. | Reverse angle doctor blade assembly with stationary end seal |
| DE3443510A1 (en) * | 1984-11-29 | 1986-06-05 | Weitmann & Konrad GmbH & Co KG, 7022 Leinfelden-Echterdingen | Device for transferring liquid |
| GB8708401D0 (en) * | 1987-04-08 | 1987-05-13 | Vickers Plc | Lithographic printing |
| DE3737531A1 (en) * | 1987-11-05 | 1989-05-18 | Koenig & Bauer Ag | COLOR RACK FOR A ROLLING MACHINE OF A ROTARY PRINTING MACHINE |
| SU1659227A1 (en) * | 1988-06-27 | 1991-06-30 | Одесское специальное конструкторское бюро полиграфического машиностроения | Inking mechanism for flexographic printing |
| DE3843017C1 (en) * | 1988-12-21 | 1990-05-23 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
| US5003876A (en) * | 1989-02-10 | 1991-04-02 | The Ward Machinery Company | Printing apparatus with dual inking system |
| DE3911839A1 (en) * | 1989-04-11 | 1990-10-18 | Koenig & Bauer Ag | DRAINAGE INK |
| EP0568674B1 (en) * | 1991-11-26 | 1996-08-07 | Namic B.V. | Inking cell doctor blade for an ink transfer body |
| US5406887A (en) * | 1993-01-15 | 1995-04-18 | Paper Converting Machine Company | Apparatus and method for doctor blade replacement in a flexographic press |
-
1994
- 1994-01-18 DE DE4401365A patent/DE4401365A1/en not_active Withdrawn
-
1995
- 1995-01-10 EP EP95100223A patent/EP0663293B1/en not_active Revoked
- 1995-01-10 DE DE59502443T patent/DE59502443D1/en not_active Revoked
- 1995-01-17 JP JP7005295A patent/JP2690279B2/en not_active Expired - Lifetime
- 1995-01-18 US US08/373,977 patent/US5560294A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2690279B2 (en) | 1997-12-10 |
| DE4401365A1 (en) | 1995-07-20 |
| US5560294A (en) | 1996-10-01 |
| EP0663293A1 (en) | 1995-07-19 |
| DE59502443D1 (en) | 1998-07-16 |
| JPH07205413A (en) | 1995-08-08 |
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