EP0600435A1 - Ductor knife segment and ductor knife holder for an ink fountain of a rotary printing machine - Google Patents

Ductor knife segment and ductor knife holder for an ink fountain of a rotary printing machine Download PDF

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Publication number
EP0600435A1
EP0600435A1 EP93119269A EP93119269A EP0600435A1 EP 0600435 A1 EP0600435 A1 EP 0600435A1 EP 93119269 A EP93119269 A EP 93119269A EP 93119269 A EP93119269 A EP 93119269A EP 0600435 A1 EP0600435 A1 EP 0600435A1
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EP
European Patent Office
Prior art keywords
ink
knife
color
ductor
rotary printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93119269A
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German (de)
French (fr)
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EP0600435B1 (en
Inventor
Christian Fischer
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Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
Koenig and Bauer AG
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Publication of EP0600435A1 publication Critical patent/EP0600435A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/02Ducts, containers, supply or metering devices
    • B41F31/04Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00Inking devices; Recovering printing ink
    • B41P2231/12Axially segmented ink blades

Definitions

  • the invention relates to an ink knife blade and an ink knife carrier for a rotary printing press according to the preamble of claim 1.
  • DE-GM G 90 04 747.8 discloses a generic ink knife arrangement for an ink fountain of a web-fed rotary printing press with resiliently arranged, resilient and spaced apart from a roller immersed in the ink fountain by means of an adjusting device which can be changed individually.
  • the tongues are adjustable in their longitudinal direction towards the roller, for. B. in that in the middle of an elongated hole or a longitudinal slot is arranged for the passage of fastening screws.
  • the tongues can be readjusted when worn.
  • a disadvantage of this color knife arrangement is that when the knife tongues reach a certain degree of wear, they have to be individually adjusted. The readjustment and alignment of the individual knife tongues is very labor intensive and can also lead to inaccuracies in the adaptation of the knife tongues to the roller.
  • Another disadvantage of the color knife arrangement is that the working or dosing edge of the roller has a wear surface which is wedge-shaped in cross section without a sharp edge.
  • the invention has for its object to increase the useful life of ink knife slats for an ink knife, which is clamped on the ink duct of a rotary printing press in an ink knife carrier, and to provide an associated ink knife carrier.
  • the color knife has a long service life because four working edges can be used per color knife slat.
  • labor-intensive alignment when changing the ink knife blades is not necessary, since one end of the ink knife blades rests against a defined edge of the ink knife carrier.
  • the color knife blades are easily exchangeable in the color knife carrier and can be clamped resiliently due to the arrangement of an additional gap.
  • FIG. 1 parts of an inking unit of a rotary printing press for web offset printing are shown.
  • An ink fountain roller 2 and a film roller 3 are mounted in a machine frame 1.
  • a paint application device designated by 4 can be placed on the ink fountain roller 2.
  • the ink application device 4 consists of an ink fountain 6 and an associated adjusting device 7 for known ink knives 8.
  • the ink fountains 6 can be used in connection with the adjusting device 7 in full, half or quarter-wide design according to the printing requirements.
  • the ink application device 4 is provided at its base 9 with trunnions 11, which are mounted in bearings 12 fixed to the frame on a cross member 13 running between the side parts of the machine frame 1.
  • the ink application device 4 is pivoted about the bearing pins 11 into a rest position, not shown, which is remote from the ink duct.
  • the adjusting device 7 is arranged under the ink fountain 6, each of which has two side parts 16, which have approximately the shape of triangles standing on the top and are adapted to the diameter of the ink duct 2 on their duct side.
  • a bottom surface 17 of the ink fountain 6 which runs obliquely downward in the direction of the ink fountain roller 2 is formed both by the top 18 of the housing of the adjusting device 7 and by an ink knife holder 19 with the ink blades 8.
  • the adjusting device 7 has eccentrics 21 which are connected via transmission elements 22, for. B. screws, with adjusting levers 23 for color knife 8 in connection.
  • the adjusting lever 23 are mounted on an axle 24 fixed to the housing.
  • the ink knife carrier 19 is attached to the top of the adjusting device 7 by means of cylinder screws 26.
  • the color knife carrier 19 consists of a Insert bar 27 and from a terminal block 28, both of which are connected by cylinder screws 29 and have an approximately rectangular cross section in the connected state.
  • the ink knife carrier 19 runs axially parallel to the ink duct 2.
  • the length of the ink knife carrier 19 corresponds to the respective ink fountain width.
  • the cheese head screws 29 are guided in bores 31 of the terminal block 28.
  • the screw head of the cap screw 29 is located in a countersink 32 of the bore 31.
  • the threaded part of the cap screw 29 is in a frictional connection with a threaded bore 33 of the insert strip 27.
  • the ink knife 8 can consist of separate sections or ink knife blades 36, 37, 38, 39, which are arranged closely next to each other, with their over their entire length l, which extends in the axis-parallel direction to the ink duct 2 and corresponds to the width of an ink fountain 6 have the first end 41 in the direction of the ink duct 2 and are received by the ink knife carrier 19 with their second end 42.
  • the inclusion of the second ends 42 of the ink knife slats 36 to 39 consisting of the ink knife 8 in the ink knife holder 19 is achieved in that a first end 43 of the ink knife holder 19 seen in cross section according to FIG.
  • the gap 46 has a first longitudinal gap 46, which is Extends over the entire length l of the ink knife carrier 19, ie corresponds to the width of the ink fountain 6.
  • the gap 46 extends, viewed in cross section according to FIG. 4, from the first end 43 of the ink knife carrier 19 to one Bore 47, which penetrates the insert bar 27 and the terminal block 28 together.
  • the gap 46 is then reduced in its width b according to FIG. 4 to a width c as a result of a shoulder 45.
  • the edge at the foot of paragraph 45 is provided with an undercut.
  • the width b of the gap 46 is slightly less than a thickness d of the color knife 8 or the color knife blade 36 shown in FIG. 3, so that a clamping effect on the clamped color knife 8 is achieved.
  • This clamping effect is further increased by the arrangement of the second gap 48 of smaller width c adjoining the gap 46 in the direction of the second end 44 of the ink knife carrier 19 compared to the width b of the gap 46.
  • the second gap 48 ends before the second end 44 of the ink knife carrier 19, so that the insert strip 27 rests against the terminal strip 28 with a surface 49 located at its second end 44.
  • the bores 47 are provided for fastening the ink knife carrier 19 on the upper side 18 of the adjusting device 7 by means of cylinder screws 26.
  • the bore 47 has counterbores 32 on both sides for alternatively receiving the heads of the cylinder screws 26.
  • the color knife slats 36 to 39 each have two working edges 51, 52 at their first ends 41 and also two working edges 53, 54 at their second ends 42.
  • a working edge 52 of the ink knife blades 36 to 39 on the circumference of the ink ductor 2 has applied and wear has occurred on the working edge 52 as a result of the operating time, the ink knife carrier 19 is turned with the ink knife 8 over its longitudinal axis by 180 o , so that the working edge 51 now bears against the ink duct 2.
  • the cheese head screws 26 are loosened. It is important to ensure that the original length of the ink knife blades 36 to 39 is retained. That can e.g. B.
  • the working edge 51 After the working edge 51 is also worn, after loosening the cheese head screws 26 and 29, the ink knife blades 36 to 39 are turned by 180 o about their longitudinal axes, so that the worn working edges 51, 52 are clamped in the ink knife holder 19 and now one of the two Working edges 53, 54 is available.
  • the working edge 53 After wear of the third working edge, e.g. B. the working edge 53 is rotated after loosening the cheese head screws 26 of the ink knife carrier 19 with the ink knife 8 180 o about its longitudinal axis, so that the fourth working edge 54 on the ink duct 2 is used.
  • the color knife blades 36 to 39 can be made of spring steel.
  • the ink knife lamellae 36 to 39 are so close together that a gap of 2 to 3 ⁇ m is created, so that the printing ink cannot penetrate through this gap.
  • the color knife slats 36 to 39 can also be made of plastic.
  • the ink knife 8 can be used both as an overshot ink knife and as an undershot ink knife in rotary printing presses, in an inking unit containing an ink fountain.
  • the working edges 51 to 54 of the ink knife blades 36 to 39 are ground in or lapped in at the ink duct 2, i. H. with a slight chamfer.
  • the ends 41, 42 of the ink knife blades 36 to 39 from a wear-resistant material, e.g. B. made of hard metal, cutting ceramic or high-speed steel.
  • the ink knife blades 36 to 39 are then cohesively connected to the wear-resistant ends mentioned by brazing or gluing.
  • Wear zones on the working edges 51, 52 or 53, 54 are designated 56, 57.
  • the end of the wear zone 56, 57 is reached when a connecting line 58 between the wear-resistant material and the ink knife blades 36 to 39 becomes visible. This happens when the dashed lines 59, 61 of the wear zone 56, 57 with cross the connecting line 58.
  • This wear indicator is visible when the ink application device 4 is pivoted around the bearing pin 11.

Abstract

In the case of segments (36 to 39) for a ductor knife (8) of a rotary printing machine, the object is to increase the service life of the ductor knife segments (36 to 39). According to the invention, this is achieved in that each ductor knife segment (36 to 39) has two working edges (51, 53; 52, 54) in each case on its first end (41, 43) and second end (42, 44). In this case, each ductor knife segment (36 to 39) is held by one of its two ends (41, 42) in a ductor knife holder (19). The working edges (51 to 54) of the ductor knife segments (36 to 39) can be engaged in each case alternately on the ink ductor (2). <IMAGE>

Description

Die Erfindung betrifft eine Farbmesser-Lamelle und einen Farbmesserträger für eine Rotationsdruckmaschine entsprechend dem Oberbegriff des Patentanspruches 1.The invention relates to an ink knife blade and an ink knife carrier for a rotary printing press according to the preamble of claim 1.

Durch die DE-GM G 90 04 747.8 ist eine gattungsgemäße Farbmesseranordnung für einen Farbkasten einer Rollen-Rotationsdruckmaschine mit nebeneinander angeordneten, federnden und in ihrem Abstand zu einer in den Farbkasten eintauchenden Walze mittels einer Verstelleinrichtung einzeln veränderbarer Zungen bekannt. Dabei sind die Zungen in ihrer Längsrichtung zur Walze hin verstellbar angebracht, z. B. dadurch, daß in deren Mitte ein Langloch oder ein Längsschlitz zum Durchtritt von Befestigungsschrauben angeordnet ist. Somit können die Zungen bei Verschleiß nachgestellt werden.DE-GM G 90 04 747.8 discloses a generic ink knife arrangement for an ink fountain of a web-fed rotary printing press with resiliently arranged, resilient and spaced apart from a roller immersed in the ink fountain by means of an adjusting device which can be changed individually. The tongues are adjustable in their longitudinal direction towards the roller, for. B. in that in the middle of an elongated hole or a longitudinal slot is arranged for the passage of fastening screws. Thus, the tongues can be readjusted when worn.

Nachteilig bei dieser Farbmesseranordnung ist jedoch, daß beim Erreichen eines bestimmten Verschleißgrades der Messerzungen eine individuelle Nachstellung derselben erfolgen muß. Das Nachstellen und Ausrichten der einzelnen Messerzungen ist sehr arbeitsaufwendig und kann darüberhinaus auch noch zu Ungenauigkeiten bei der Anpassung der Messerzungen an die Walze führen. Ein weiterer Nachteil der Farbmesseranordnung ist, daß die an der Walze anliegende Arbeits- oder Dosierkante eine im Querschnitt keilförmige Abnutzungsfläche ohne eine scharfe Kante aufweist.A disadvantage of this color knife arrangement, however, is that when the knife tongues reach a certain degree of wear, they have to be individually adjusted. The readjustment and alignment of the individual knife tongues is very labor intensive and can also lead to inaccuracies in the adaptation of the knife tongues to the roller. Another disadvantage of the color knife arrangement is that the the working or dosing edge of the roller has a wear surface which is wedge-shaped in cross section without a sharp edge.

Der Erfindung liegt die Aufgabe zugrunde, die Verwendungsdauer von Farbmesser-Lamellen für ein Farbmesser zu erhöhen, das am Farbduktor einer Rotationsdruckmaschine in einem Farbmesserträger eingespannt ist, sowie einen dazugehörigen Farbmesserträger zu schaffen.The invention has for its object to increase the useful life of ink knife slats for an ink knife, which is clamped on the ink duct of a rotary printing press in an ink knife carrier, and to provide an associated ink knife carrier.

Erfindungsgemäß wird diese Aufgabe durch den kennzeichnenden Teil der Patentansprüche 1 und 4 gelöst.According to the invention this object is achieved by the characterizing part of claims 1 and 4.

Durch die Erfindung werden insbesondere nachfolgende Vorteile erzielt. Durch eine vierfache Verwendungsmöglichkeit der einzelnen Farbmesser-Lamellen ergibt sich eine lange Verwendungsdauer des Farbmessers dadurch, daß vier Arbeitskanten je Farbmesser-Lamelle einsetzbar sind. Bei Verwendung des erfindungsgemäßen Farbmesserträgers ist ein arbeitsaufwendiges Ausrichten beim Wechsel der Farbmesser-Lamellen nicht erforderlich, da ein Ende der Farbmesser-Lamellen gegen eine definierte Kante des Farbmesserträgers anliegt. Die Farbmesser-Lamellen sind in dem Farbmesserträger leicht auswechselbar und infolge der Anordnung eines zusätzlichen Spaltes federnd klemmbar.The following advantages are achieved in particular by the invention. Because the individual color knife slats can be used four times, the color knife has a long service life because four working edges can be used per color knife slat. When using the ink knife carrier according to the invention, labor-intensive alignment when changing the ink knife blades is not necessary, since one end of the ink knife blades rests against a defined edge of the ink knife carrier. The color knife blades are easily exchangeable in the color knife carrier and can be clamped resiliently due to the arrangement of an additional gap.

Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. Die zugehörigen Zeichnungen zeigen in

Fig. 1
die schematische Seitenansicht eines Farbwerkes;
Fig. 2
die Ansicht A auf einen Farbmesserträger;
Fig. 3
den Schnitt III - III nach Fig. 2;
Fig. 4
den Schnitt IV - IV nach Fig. 2, jedoch nur mit angedeuteter Darstellung eines Farbmessers;
Fig. 5
eine vergrößerte Darstellung einer Farbmesser-Lamelle nach Fig. 3.
The invention is intended in one Embodiment will be explained in more detail. The associated drawings show in
Fig. 1
the schematic side view of an inking unit;
Fig. 2
view A on an ink knife carrier;
Fig. 3
the section III - III of FIG. 2;
Fig. 4
the section IV - IV of Figure 2, but only with an indicated representation of a color knife.
Fig. 5
3 shows an enlarged illustration of a color knife blade according to FIG. 3.

Entsprechend der schematischen Seitenansicht nach Fig. 1 werden Teile eines Farbwerkes einer Rotationsdruckmaschine für Rollenoffsetdruck gezeigt. In einem Maschinengestell 1 ist ein Farbduktor 2 sowie eine Filmwalze 3 gelagert. An den Farbduktor 2 ist eine mit 4 bezeichnete Farbauftragvorrichtung anstellbar.According to the schematic side view of FIG. 1, parts of an inking unit of a rotary printing press for web offset printing are shown. An ink fountain roller 2 and a film roller 3 are mounted in a machine frame 1. A paint application device designated by 4 can be placed on the ink fountain roller 2.

Die Farbauftragvorrichtung 4 besteht aus einem Farbkasten 6 und einer dazugehörigen Verstelleinrichtung 7 für bekannte Farbmesser 8. Die Farbkästen 6 können in Verbindung mit der Verstelleinrichtung 7 in voll-, halb- oder viertelbreiter Ausführung entsprechend den drucktechnischen Erfordernissen eingesetzt werden.The ink application device 4 consists of an ink fountain 6 and an associated adjusting device 7 for known ink knives 8. The ink fountains 6 can be used in connection with the adjusting device 7 in full, half or quarter-wide design according to the printing requirements.

Die Farbauftragvorrichtung 4 ist in ihrem Fußpunkt 9 mit Lagerzapfen 11 versehen, die in gestellfesten Lagern 12 auf einer zwischen den Seitenteilen des Maschinengestells 1 verlaufenden Traverse 13 gelagert sind. Mittels Arbeitszylindern 14, welche auf der Traverse 13 angeordnet sind, erfolgt das Verschwenken der Farbauftragvorrichtung 4 um die Lagerzapfen 11 in eine nicht gezeigte farbduktorferne Ruhestellung. Die Verstelleinrichtung 7 ist unter dem Farbkasten 6 angeordnet, welcher jeweils zwei Seitenteile 16 aufweist, welche in etwa die Form von auf der Spitze stehenden Dreiecken besitzen und auf ihrer Duktorseite dem Durchmesser des Farbduktors 2 angepaßt sind. Eine in Richtung Farbduktor 2 schräg nach unten verlaufende Bodenfläche 17 des Farbkastens 6 wird sowohl durch die Oberseite 18 des Gehäuses der Verstelleinrichtung 7 als auch von einem Farbmesserträger 19 mit den Farbmessern 8 gebildet. Die Verstelleinrichtung 7 weist Exzenter 21 auf, die über Übertragungsglieder 22, z. B. Schrauben, mit Verstellhebeln 23 für Farbmesser 8 in Verbindung stehen. Die Verstellhebel 23 sind auf einer gehäusefesten Achse 24 gelagert. Der Farbmesserträger 19 ist mittels Zylinderschrauben 26 an der Oberseite der Verstelleinrichtung 7 befestigt.The ink application device 4 is provided at its base 9 with trunnions 11, which are mounted in bearings 12 fixed to the frame on a cross member 13 running between the side parts of the machine frame 1. By means of working cylinders 14 which are arranged on the cross member 13, the ink application device 4 is pivoted about the bearing pins 11 into a rest position, not shown, which is remote from the ink duct. The adjusting device 7 is arranged under the ink fountain 6, each of which has two side parts 16, which have approximately the shape of triangles standing on the top and are adapted to the diameter of the ink duct 2 on their duct side. A bottom surface 17 of the ink fountain 6 which runs obliquely downward in the direction of the ink fountain roller 2 is formed both by the top 18 of the housing of the adjusting device 7 and by an ink knife holder 19 with the ink blades 8. The adjusting device 7 has eccentrics 21 which are connected via transmission elements 22, for. B. screws, with adjusting levers 23 for color knife 8 in connection. The adjusting lever 23 are mounted on an axle 24 fixed to the housing. The ink knife carrier 19 is attached to the top of the adjusting device 7 by means of cylinder screws 26.

In den Fig. 2 bis 4 sind Detaildarstellungen der Farbmesserträger 19 mit Farbmesser gezeigt, welches insgesamt mit 8 bezeichnet ist. Die Farbmesserträger 19 besteht aus einem Einsatzleiste 27 und aus einer Klemmleiste 28, welche beide durch Zylinderschrauben 29 verbunden sind und in verbundenem Zustand einen etwa rechteckigen Querschnitt aufweisen. Die Farbmesserträger 19 verläuft achsparallel zum Farbduktor 2. Die Länge des Farbmesserträgers 19 entspricht dabei der jeweiligen Farbkastenbreite. Die Zylinderschrauben 29 sind in Bohrungen 31 der Klemmleiste 28 geführt. Der Schraubenkopf der Zylinderschraube 29 befindet sich in einer Zylindersenkung 32 der Bohrung 31. Das Gewindeteil der Zylinderschraube 29 steht mit einer Gewindebohrung 33 des Einsatzleiste 27 reibschlüssig in Wirkverbindung. Das Farbmesser 8 kann über seine gesamte Länge l, welche in achsparalleler Richtung zum Farbduktor 2 verläuft und der Breite eines Farbkastens 6 entspricht, aus getrennten Abschnitten oder Farbmesser-Lamellen 36, 37, 38, 39 bestehen, die dicht nebeneinander angeordnet sind, mit ihrem ersten Ende 41 in Richtung Farbduktor 2 weisen und mit ihrem zweiten Ende 42 von dem Farbmesserträger 19 aufgenommen werden. Die Aufnahme der zweiten Enden 42 des aus den Farbmesser-Lamellen 36 bis 39 bestehenden Farbmessers 8 in dem Farbmesserträger 19 erfolgt dadurch, daß ein erstes Ende 43 des Farbmesserträgers 19 im Querschnitt nach Fig. 4 gesehen, einen ersten längsverlaufenden Spalt 46 aufweist, welcher sich über die gesamte Länge l des Farbmesserträgers 19 erstreckt, also der Breite des Farbkastens 6 entspricht. Der Spalt 46 erstreckt sich, im Querschnitt nach Fig. 4 gesehen, vom ersten Ende 43 des Farbmesserträgers 19 bis zu einer Bohrung 47, welche die Einsatzleiste 27 sowie die Klemmleiste 28 gemeinsam durchdringt. Anschließend ist der Spalt 46 in seiner Breite b nach Fig. 4 infolge eines Absatzes 45 auf eine Breite c reduziert. Die Kante am Fuß des Absatzes 45 ist mit einem Freistich versehen. Die Breite b des Spaltes 46 ist etwas geringer als eine Dicke d des Farbmessers 8 bzw. der in Fig. 3 dargestellten Farbmesser-Lamelle 36, so daß eine Klemmwirkung auf das eingespannte Farbmesser 8 erzielt wird. Diese Klemmwirkung wird noch durch die Anordnung des sich an den Spalt 46 in Richtung des zweiten Endes 44 des Farbmesserträgers 19 anschließenden zweiten Spaltes 48 geringerer Breite c erhöht gegenüber der Breite b des Spaltes 46. Der zweite Spalt 48 endet vor dem zweiten Ende 44 des Farbmesserträgers 19, so daß sich die Einsatzleiste 27 mit einer an ihrem zweiten Ende 44 befindlichen Fläche 49 an die Klemmleiste 28 anlegt. Die Bohrungen 47 sind für das Befestigen des Farbmesserträgers 19 auf der Oberseite 18 der Verstelleinrichtung 7 mittels Zylinderschrauben 26 vorgesehen. Die Bohrung 47 weist beidseitig Zylindersenkungen 32 zur alternativen Aufnahme der Köpfe der Zylinderschrauben 26 auf.2 to 4 show detailed representations of the color knife carrier 19 with color knife, which is designated overall by 8. The color knife carrier 19 consists of a Insert bar 27 and from a terminal block 28, both of which are connected by cylinder screws 29 and have an approximately rectangular cross section in the connected state. The ink knife carrier 19 runs axially parallel to the ink duct 2. The length of the ink knife carrier 19 corresponds to the respective ink fountain width. The cheese head screws 29 are guided in bores 31 of the terminal block 28. The screw head of the cap screw 29 is located in a countersink 32 of the bore 31. The threaded part of the cap screw 29 is in a frictional connection with a threaded bore 33 of the insert strip 27. The ink knife 8 can consist of separate sections or ink knife blades 36, 37, 38, 39, which are arranged closely next to each other, with their over their entire length l, which extends in the axis-parallel direction to the ink duct 2 and corresponds to the width of an ink fountain 6 have the first end 41 in the direction of the ink duct 2 and are received by the ink knife carrier 19 with their second end 42. The inclusion of the second ends 42 of the ink knife slats 36 to 39 consisting of the ink knife 8 in the ink knife holder 19 is achieved in that a first end 43 of the ink knife holder 19 seen in cross section according to FIG. 4 has a first longitudinal gap 46, which is Extends over the entire length l of the ink knife carrier 19, ie corresponds to the width of the ink fountain 6. The gap 46 extends, viewed in cross section according to FIG. 4, from the first end 43 of the ink knife carrier 19 to one Bore 47, which penetrates the insert bar 27 and the terminal block 28 together. The gap 46 is then reduced in its width b according to FIG. 4 to a width c as a result of a shoulder 45. The edge at the foot of paragraph 45 is provided with an undercut. The width b of the gap 46 is slightly less than a thickness d of the color knife 8 or the color knife blade 36 shown in FIG. 3, so that a clamping effect on the clamped color knife 8 is achieved. This clamping effect is further increased by the arrangement of the second gap 48 of smaller width c adjoining the gap 46 in the direction of the second end 44 of the ink knife carrier 19 compared to the width b of the gap 46. The second gap 48 ends before the second end 44 of the ink knife carrier 19, so that the insert strip 27 rests against the terminal strip 28 with a surface 49 located at its second end 44. The bores 47 are provided for fastening the ink knife carrier 19 on the upper side 18 of the adjusting device 7 by means of cylinder screws 26. The bore 47 has counterbores 32 on both sides for alternatively receiving the heads of the cylinder screws 26.

Die Farbmesser-Lamellen 36 bis 39 besitzen an ihren ersten Enden 41 jeweils zwei Arbeitskanten 51, 52 und an ihren zweiten Enden 42 ebenfalls zwei Arbeitskanten 53, 54. Nachdem z. B. eine Arbeitskante 52 der Farbmesser-Lamellen 36 bis 39 am Umfang des Farbduktors 2 angelegen hat und infolge der Betriebsdauer Verschleißerscheinungen an der Arbeitskante 52 aufgetreten sind, wird der Farbmesserträger 19 mit dem Farbmesser 8 über seine Längsachse um 180o gewendet, so daß jetzt die Arbeitskante 51 am Farbduktor 2 anliegt. Dazu werden die Zylinderschrauben 26 gelöst. Dabei ist darauf zu achten, daß die ursprüngliche Länge der Farbmesser-Lamellen 36 bis 39 noch erhalten bleibt. Das kann z. B. dadurch geschehen, daß die Arbeitskante 51 und auch die anderen Arbeitskanten 52, 53, 54 hier soweit einem Verschleiß unterzogen werden, daß jeweils nur ein Viertel oder ein Fünftel der Materialdicke der Farbmesser-Lamellen 36 bis 39 in Anspruch genommen wird, z. B. 0,5 mm von 2,5 mm Materialdicke.The color knife slats 36 to 39 each have two working edges 51, 52 at their first ends 41 and also two working edges 53, 54 at their second ends 42. B. a working edge 52 of the ink knife blades 36 to 39 on the circumference of the ink ductor 2 has applied and wear has occurred on the working edge 52 as a result of the operating time, the ink knife carrier 19 is turned with the ink knife 8 over its longitudinal axis by 180 o , so that the working edge 51 now bears against the ink duct 2. For this purpose, the cheese head screws 26 are loosened. It is important to ensure that the original length of the ink knife blades 36 to 39 is retained. That can e.g. B. happen that the working edge 51 and the other working edges 52, 53, 54 are subjected to wear here to the extent that only a quarter or a fifth of the material thickness of the ink knife blades 36 to 39 is used, for. B. 0.5 mm of 2.5 mm material thickness.

Nachdem die Arbeitskante 51 ebenfalls verschlissen ist, werden nach Lösen der Zylinderschrauben 26 und 29 die Farbmesser-Lamellen 36 bis 39 um 180o um ihre Längsachsen gewendet, so daß die verschlissenen Arbeitskanten 51, 52 in dem Farbmesserträger 19 festgeklemmt werden und nunmehr eine der beiden Arbeitskanten 53, 54 zur Verfügung steht. Nach Verschleiß der dritten Arbeitskante, z. B. der Arbeitskante 53 wird nach dem Lösen der Zylinderschrauben 26 der Farbmesserträger 19 mit dem Farbmesser 8 180o um seine Längsachse gedreht, so daß die vierte Arbeitskante 54 an dem Farbduktor 2 zum Einsatz kommt.After the working edge 51 is also worn, after loosening the cheese head screws 26 and 29, the ink knife blades 36 to 39 are turned by 180 o about their longitudinal axes, so that the worn working edges 51, 52 are clamped in the ink knife holder 19 and now one of the two Working edges 53, 54 is available. After wear of the third working edge, e.g. B. the working edge 53 is rotated after loosening the cheese head screws 26 of the ink knife carrier 19 with the ink knife 8 180 o about its longitudinal axis, so that the fourth working edge 54 on the ink duct 2 is used.

Die Farbmesser-Lamellen 36 bis 39 können aus Federstahl bestehen. Die Farbmesser-Lamellen 36 bis 39 liegen so dicht nebeneinander, daß ein Spalt von 2 bis 3 µm entsteht, so daß die Druckfarbe nicht durch diesen Spalt dringen kann.The color knife blades 36 to 39 can be made of spring steel. The ink knife lamellae 36 to 39 are so close together that a gap of 2 to 3 µm is created, so that the printing ink cannot penetrate through this gap.

Die Farbmesser-Lamellen 36 bis 39 können auch aus Kunststoff bestehen. Das Farbmesser 8 kann sowohl als oberschlächtiges Farbmesser als auch als unterschlächtiges Farbmesser in Rotationsdruckmaschinen eingesetzt werden, in einem einen Farbkasten beinhaltenden Farbwerk. Die Arbeitskanten 51 bis 54 der Farbmesser-Lamellen 36 bis 39 werden am Farbduktor 2 eingeschliffen bzw. eingeläppt, d. h. mit einer geringfügigen Anphasung versehen.The color knife slats 36 to 39 can also be made of plastic. The ink knife 8 can be used both as an overshot ink knife and as an undershot ink knife in rotary printing presses, in an inking unit containing an ink fountain. The working edges 51 to 54 of the ink knife blades 36 to 39 are ground in or lapped in at the ink duct 2, i. H. with a slight chamfer.

Es ist auch möglich, die Enden 41, 42 der Farbmesser-Lamellen 36 bis 39 aus einem verschleißfesten Material herzustellen, z. B. aus Hartmetall, Schneidkeramik oder aus Schnellschnittstahl. Die Farbmesser-Lamellen 36 bis 39 werden dann mit den genannten verschleißfesten Enden durch Hartlöten oder Kleben stoffschlüssig verbunden. Verschleißzonen an den Arbeitskanten 51, 52 oder 53, 54 sind mit 56, 57 bezeichnet. Das Ende der Verschleißzone 56, 57 ist dann erreicht, wenn eine Verbindungslinie 58 zwischen verschleißfestem Material und Farbmesser-Lamellen 36 bis 39 sichtbar wird. Dies geschieht dann, wenn die gestrichelten Linien 59, 61 der Verschleißzone 56, 57 mit der Verbindungslinie 58 kreuzen. Diese Verschleißanzeige wird sichtbar beim Abschwenken der Farbauftragvorrichtung 4 um den Lagerzapfen 11.It is also possible to manufacture the ends 41, 42 of the ink knife blades 36 to 39 from a wear-resistant material, e.g. B. made of hard metal, cutting ceramic or high-speed steel. The ink knife blades 36 to 39 are then cohesively connected to the wear-resistant ends mentioned by brazing or gluing. Wear zones on the working edges 51, 52 or 53, 54 are designated 56, 57. The end of the wear zone 56, 57 is reached when a connecting line 58 between the wear-resistant material and the ink knife blades 36 to 39 becomes visible. This happens when the dashed lines 59, 61 of the wear zone 56, 57 with cross the connecting line 58. This wear indicator is visible when the ink application device 4 is pivoted around the bearing pin 11.

TeilelisteParts list

11
MaschinengestellMachine frame
22nd
FarbduktorColor ductor
33rd
FilmwalzeFilm roller
44th
FarbauftragvorrichtungPaint applicator
55
--
66
FarbkastenPaint box
77
VerstelleinrichtungAdjustment device
88th
FarbmesserColor knife
99
FußpunktBase
1010th
--
1111
LagerzapfenBearing journal
1212th
Lagerwarehouse
1313
Traverse (1)Traverse (1)
1414
ArbeitszylinderWorking cylinder
1515
--
1616
Seitenteil (6)Side panel (6)
1717th
Bodenfläche (6)Floor (6)
1818th
Oberseite (7)Top (7)
1919th
Farbmesserträger (8)Ink knife carrier (8)
2020th
--
2121
Exzenter (7)Eccentric (7)
2222
Übertragungsglied (7)Transmission link (7)
2323
Verstellhebel (7)Adjustment lever (7)
2424th
Achse (23)Axle (23)
2525th
--
2626
ZylinderschraubenSocket head screws
2727
EinsatzleisteInsert bar
2828
KlemmleisteTerminal block
2929
Zylinderschraubecylinder head screw
3030th
--
3131
Bohrungdrilling
3232
ZylindersenkungCylinder countersink
3333
GewindebohrungTapped hole
3434
--
3535
--
3636
Farbmesser-LamelleColor knife slat
3737
Farbmesser-LamelleColor knife slat
3838
Farbmesser-LamelleColor knife slat
3939
Farbmesser-LamelleColor knife slat
4040
--
4141
Ende, erstes (36 - 39)End, first (36 - 39)
4242
Ende, zweites (36 - 39)End, second (36 - 39)
4343
Ende, erstes (19)End, first (19)
4444
Ende, zweites (19)End, second (19)
4545
Absatz (27)Heel (27)
4646
Spalt, erster (19)Gap, first (19)
4747
Bohrung (27, 28)Bore (27, 28)
4848
Spalt, zweiter (19)Second gap (19)
4949
Fläche (27)Surface (27)
5050
--
5151
Arbeitskante (41)Working edge (41)
5252
Arbeitskante (41)Working edge (41)
5353
Arbeitskante (42)Working edge (42)
5454
Arbeitskante (42)Working edge (42)
5555
--
5656
VerschleißzoneWear zone
5757
VerschleißzoneWear zone
5858
VerbindungslinieConnecting line
5959
Linieline
6060
--
6161
Linieline
ll
Längelength
bb
Breite (46)Width (46)
dd
Dicke (8)Thick (8)
cc
Breite (48)Width (48)
bb
Höhe (45)Height (45)

Claims (4)

Farbmesser-Lamelle für ein Farbmesser eines Farbkastens einer Rotationsdruckmaschine, dadurch gekennzeichnet, daß jedes Ende (41; 42) der Farbmesser-Lamelle (36, 37, 38, 39) zwei Arbeitskanten (51, 52; 53, 54) aufweist.Color knife lamella for a color knife of a color box of a rotary printing machine, characterized in that each end (41; 42) of the color knife lamella (36, 37, 38, 39) has two working edges (51, 52; 53, 54). Farbmesser-Lamelle nach Patentanspruch 1, dadurch gekennzeichnet, daß die Enden (41, 42) der Farbmesser-Lamelle (36, 37, 38, 39) aus einem verschleißfesten Material bestehen.Color knife blade according to claim 1, characterized in that the ends (41, 42) of the color knife blade (36, 37, 38, 39) consist of a wear-resistant material. Farbmesser-Lamelle nach Patentansprüchen 1 und 2, dadurch gekennzeichnet, daß als verschleißfestes Material Hartmetall, Schneidkeramik oder Schnellschnittstahl verwendet wird.Color knife blade according to patent claims 1 and 2, characterized in that hard metal, cutting ceramic or high-speed steel is used as the wear-resistant material. Farbmesserträger zum lösbaren Befestigen von Farbmesser-Lamellen eines Farbmessers für einen Farbkasten einer Rotationsdruckmaschine mit einem in den Farbkasten eintauchenden Farbduktor, dadurch gekennzeichnet, daß die Farbmesser-Lamellen (36 bis 39) einseitig zwischen einer Einsatzleiste (27) und einer Klemmleiste (28) einspannbar sind und mittels eines zwischen der Einsatzleiste (27) und der Klemmleiste (28) angeordneten Spaltes (48) federnd gelagert sind.Ink knife carrier for the detachable fastening of ink knife blades of an ink knife for an ink fountain of a rotary printing press with an ink fountain plunging into the ink fountain, characterized in that the ink knife blades (36 to 39) can be clamped on one side between an insert strip (27) and a clamping strip (28) are and are resiliently mounted by means of a gap (48) arranged between the insert strip (27) and the terminal strip (28).
EP93119269A 1992-12-03 1993-11-30 Ductor knife segment and ductor knife holder for an ink fountain of a rotary printing machine Expired - Lifetime EP0600435B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240642A DE4240642C2 (en) 1992-12-03 1992-12-03 Ink knife blade holder and ink knife blades for an ink fountain of a rotary printing press
DE4240642 1992-12-03

Publications (2)

Publication Number Publication Date
EP0600435A1 true EP0600435A1 (en) 1994-06-08
EP0600435B1 EP0600435B1 (en) 1997-04-23

Family

ID=6474279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119269A Expired - Lifetime EP0600435B1 (en) 1992-12-03 1993-11-30 Ductor knife segment and ductor knife holder for an ink fountain of a rotary printing machine

Country Status (2)

Country Link
EP (1) EP0600435B1 (en)
DE (2) DE4240642C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405649B1 (en) 1999-02-23 2002-06-18 De La Rue Giori S.A. Ink fountain blade for a printing machine
WO2005102701A1 (en) 2004-04-22 2005-11-03 Kba-Giori S.A. Ink fountain for a printing machine
DE102010001474A1 (en) 2010-02-02 2011-08-04 KOENIG & BAUER Aktiengesellschaft, 97080 Method for manufacturing chromatometer of color box of rotary printing machine, involves partially disconnecting slugs of chromatometer by sound pulse separation process for formation of chromatometer slats

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE19525529C1 (en) * 1995-07-13 1996-06-05 Koenig & Bauer Albert Ag Method of mounting dosing device in rotary printing machine
DE29704025U1 (en) * 1997-03-06 1997-05-07 Voith Sulzer Papiermasch Gmbh Blade for an applicator or squeegee device
DE102013225691B4 (en) 2013-12-12 2017-11-16 Koenig & Bauer Ag A system for feeding and metering ink into an inking unit of a printing machine and method for renewing a metering edge effective for color metering

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US2519182A (en) * 1945-10-09 1950-08-15 Hoe & Co R Ink fountain
US3559573A (en) * 1968-08-12 1971-02-02 Hantscho Co George Ink fountain assembly and blade adjusting means therefor
EP0022924A1 (en) * 1979-07-24 1981-01-28 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Ink metering device for a printing machine
DE3302317A1 (en) * 1982-01-29 1983-08-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Ink-metering element, in particular ink knife or ink slide, for the inking mechanism of a rotary printing machine

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US3780670A (en) * 1972-08-07 1973-12-25 Faustel Inc Doctor blade assembly
US4441418A (en) * 1982-02-03 1984-04-10 Adolph Coors Company Overvarnish apparatus for decorator machine
DE8903428U1 (en) * 1988-09-07 1989-05-11 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3834932A1 (en) * 1988-10-13 1990-04-19 Herbert Ott Doctor blade holder and doctor blade suitable therefor
DE9004747U1 (en) * 1990-04-26 1990-06-28 Man Roland Druckmaschinen Ag, 6050 Offenbach, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634611C (en) * 1935-05-30 1936-08-31 Maschf Augsburg Nuernberg Ag Squeegee for rotogravure printing machines
US2519182A (en) * 1945-10-09 1950-08-15 Hoe & Co R Ink fountain
US3559573A (en) * 1968-08-12 1971-02-02 Hantscho Co George Ink fountain assembly and blade adjusting means therefor
EP0022924A1 (en) * 1979-07-24 1981-01-28 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Ink metering device for a printing machine
DE3302317A1 (en) * 1982-01-29 1983-08-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Ink-metering element, in particular ink knife or ink slide, for the inking mechanism of a rotary printing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405649B1 (en) 1999-02-23 2002-06-18 De La Rue Giori S.A. Ink fountain blade for a printing machine
WO2005102701A1 (en) 2004-04-22 2005-11-03 Kba-Giori S.A. Ink fountain for a printing machine
JP2007533505A (en) * 2004-04-22 2007-11-22 カーベーアー−ジオリ ソシエテ アノニム Ink fountain for printing press
DE102010001474A1 (en) 2010-02-02 2011-08-04 KOENIG & BAUER Aktiengesellschaft, 97080 Method for manufacturing chromatometer of color box of rotary printing machine, involves partially disconnecting slugs of chromatometer by sound pulse separation process for formation of chromatometer slats

Also Published As

Publication number Publication date
DE4240642A1 (en) 1994-06-09
DE59306261D1 (en) 1997-05-28
EP0600435B1 (en) 1997-04-23
DE4240642C2 (en) 1996-03-21

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