EP1567342B1 - Ink reservoir doctor blade - Google Patents

Ink reservoir doctor blade Download PDF

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Publication number
EP1567342B1
EP1567342B1 EP03775395A EP03775395A EP1567342B1 EP 1567342 B1 EP1567342 B1 EP 1567342B1 EP 03775395 A EP03775395 A EP 03775395A EP 03775395 A EP03775395 A EP 03775395A EP 1567342 B1 EP1567342 B1 EP 1567342B1
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EP
European Patent Office
Prior art keywords
doctor blade
clamping plate
rod
fasteners
roller
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.)
Expired - Lifetime
Application number
EP03775395A
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German (de)
French (fr)
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EP1567342A1 (en
Inventor
Klaus Gräler
Günter Rogge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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Filing date
Publication date
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Publication of EP1567342A1 publication Critical patent/EP1567342A1/en
Application granted granted Critical
Publication of EP1567342B1 publication Critical patent/EP1567342B1/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the WO 0078548 A1 shows a clamping device for a doctor blade, wherein a clamping rail has been provided with a T-shaped groove, so that this, in operative connection with the spring of the carrier, the doctor blade can clamp.
  • the clamping plates are flexible plates which are held on the doctoring chamber body by screws or similar fixing means, but are not finally fixed. Clamping takes place on the side of the screws facing the roller, in that the fastening means elongated in the axial direction (z) of the roller exert a force on the clamping plate which points away from the doctor chamber body.
  • the clamping plate is held by the screws on the doctoring chamber body so that the clamping plate bends and on the side of the screws facing the roller exerts a force on the doctor blade which is directed onto the doctoring chamber body and fixes the doctor blade to the doctoring chamber body. If the force exerted by the elongated fastener force effect is suppressed, no force is exerted on the doctor blade and possibly the clamping plate.
  • the fastening means which are elongate in the axial direction (z) of the roller are rods with a partially round cross section, which are rotatably mounted in the doctor chamber body.
  • the FIG. 1 shows a paint chamber doctor blade 1 of the prior art.
  • the ink chamber 8 is limited by the inking roller 6 of the doctoring chamber body 5, which of course may also consist of several parts, and the doctor blade 2 is limited.
  • the two doctor blades 2 of the ink chamber doctor blade 1 are each fixed by a clamping plate 3 which presses the doctor blade associated with it against the doctor chamber body 5.
  • the force required for this purpose is the restoring force of the clamping plate, which arises because the clamping plate between the elongated fastening element 4, which is pronounced in the present case as a rod and the head of the screw 7 and the doctor chamber body 5 is bent.
  • FIG. 3 shows a clamping plate, which for use in the in the Figures 1 and 2 illustrated doctoring chamber is suitable.
  • the round holes 10 and the grooves 11 form the apertures 9.
  • the diameter of the holes 10 is matched with the necessary play on the head of the screw 7, while the width of the groove 11 is tuned to the diameter of the screw neck.
  • FIG. 4 and 5 show a chamber doctor blade according to the invention, in which the clamping plates 3 is provided with an attachment piece 13 which comprises a connecting element 14.
  • the connecting element is matched to the recess 15 of the rod 4.
  • the shape of the recess 15 is in FIG. 6 shown again.
  • FIG. 6 shows a plan view of the clamping plate 3, which in the in FIGS. 4 and 5 used chambered doctor blade according to the invention is used.

Abstract

The invention relates to a color chamber doctor blade 1 , which has following characteristic features: two doctor blade knives 2 that can be set up in a roof-like fashion against a roller 6 from which two doctor blade knives 2 can be fixed on the doctor blade chamber body 5 by means of a clamping plate 3 whereby the clamping plate 3 is in active connection with long-stretch fasteners 4 in the axial direction (z) of the roller 6, which are arranged essentially parallel to the clamping plate 3 and from which the force required for fixing at least one doctor blade knife 2 is applied. Inventive is that the resultant of the force exercised by the fasteners 4 points to the doctor blade chamber body 5.

Description

Die Erfindung betrifft ein Farbkammerrakel nach dem Oberbegriff des Anspruchs 1.
Farbkammerrakel sind seit langem bekannt. Die Rakelmesser von Farbkammerrakeln unterliegen ständigem Verschleiß und müssen daher regelmäßig gewechselt werden. Die Rakelmesser werden in der Regel zu ihrer Fixierung von einem Klemmblech gegen den Rakelkammerkörper gedrückt. In der Vergangenheit wurde das Klemmblech zu diesem Zweck mit Schrauben an dem RakelkammerKörper befestigt, wie es in der DE 42 41 792 A1 zu sehen ist. Das Klemmblech drückt seinerseits das Rakelmesser gegen den Rakelkammerkörper und fixiert es dabei. Angesichts der Länge der Rakelmesser in der radialen Richtung der Walze, die von der Rakelkammer mit Farbe beaufschlagt wird, muss jedoch eine Vielzahl von Schrauben beim Wechseln des Rakelmessers gewechselt werden. Da alle Arten von Rüstzeiten zu Maschinenstillstand führen und damit teuer sind, werden in der Literatur zahlreiche Vorschläge zu Vorrichtungen gemacht, die ein schnelleres Wechseln der Rakelmesser zulassen. So schlägt die DE 43 20 833 C1 die Verwendung von Schnellverschlüssen vor.
In jüngerer Zeit ist festzustellen, dass die vorgenannten Arten der Befestigung des Klemmblechs beziehungsweise des Rakelmessers am Rakelkammerkörper dadurch ersetzt wird, dass

  • das Klemmblech in Wirkverbindung mit in der axialen Richtung der Walze langgestreckten Befestigungsmitteln steht,
  • welche im wesentlichen parallel zu dem Klemmblech angeordnet sind
  • und von welchen die zur Fixierung des zumindest einen Rakelmessers notwendige Kraft aufgebracht wird,
The invention relates to a paint chamber doctor blade according to the preamble of claim 1.
Farbkammerrakel have long been known. The doctor blades of Farbkammerrakeln are subject to constant wear and must therefore be changed regularly. The doctor blades are usually pressed to their fixation of a clamping plate against the Rakelkammerkörper. In the past, the clamping plate was fastened for this purpose with screws to the doctor chamber body, as in the DE 42 41 792 A1 you can see. The clamping plate in turn presses the doctor blade against the doctoring chamber body and fixes it. However, in view of the length of the doctor blades in the radial direction of the roller, which is supplied with ink by the doctor blade chamber, a plurality of screws must be exchanged when changing the doctor blade. Since all types of set-up times lead to machine downtime and are therefore expensive, numerous proposals are made in the literature to devices that allow a faster change of the doctor blades. So that beats DE 43 20 833 C1 the use of quick-release fasteners.
More recently, it has been found that the aforementioned types of attachment of the clamping plate or the doctor blade to the doctor chamber body is replaced by
  • the clamping plate is in operative connection with fastening means elongated in the axial direction of the roller,
  • which are arranged substantially parallel to the clamping plate
  • and from which the force necessary for fixing the at least one doctor blade is applied,

Die WO 0078548 A1 zeigt eine Klemmvorrichtung für ein Rakelmesser, wobei eine Klemmschiene mit einer T-förmigen Nut versehen wurde, so dass diese ,in Wirkverbindung mit der Feder des Trägers, das Rakelmesser festklemmen kann.
Bei den Klemmblechen handelt es sich um biegsame Bleche, die durch Schrauben oder ähnliche Fixierungsmittel am Rakelkammerkörper gehalten, jedoch nicht endgültig fixiert sind. Auf der der Walze zugewandten Seite der Schrauben erfolgt die Verklemmung, indem die in der axialen Richtung (z) der Walze langgestreckten Befestigungsmittel eine Kraft auf das Klemmblech ausüben, welche von dem Rakelkammerkörper wegzeigt. Das Klemmblech wird jedoch von den Schrauben an dem Rakelkammerkörper gehalten, so dass sich das Klemmblech verbiegt und auf der der Walze zugewandten Seite der Schrauben eine Kraft auf das Rakelmesser ausübt, welche auf den Rakelkammerkörper gerichtet ist und das Rakelmesser am Rakelkammerkörper fixiert. Wenn die von dem langgestreckten Befestigungsmittel ausgeübte Kraftwirkung unterbunden wird, wird auch keine Kraft mehr auf das Rakelmesser und gegebenenfalls das Klemmblech ausgeübt.
In der Regel handelt es sich bei den in der axialen Richtung (z) der Walze langgestreckten Befestigungsmitteln um Stangen mit einem teilweise runden Querschnitt, welche in dem Rakelkammerkörper drehbar gelagert sind. Solche Stangen sind dann mit einer Ausnehmung oder einem Vorsprung versehen, was dazu führt, dass bei einer Drehung der Stange eine Kraft ausgeübt wird, deren Resultierende von der Rakelkammer weg zeigt. Es ist jedoch auch denkbar, an dieser Stelle einen aufblasbaren Schlauch oder einen anderen Körper zu platzieren, welcher sein Volumen vergrößern kann und auf diese Weise eine Kraft auf das Klemmblech ausübt, deren Resultierende von dem Rakelkammerkörper wegzeigt.
Abschließend ist noch einmal zu betonen, dass der große Vorteil dieser Art der Befestigung darin besteht, dass im Vergleich zu der Fixierung des Rakelmessers durch das Lösen von Schrauben eben nur noch eine deutlich geringere Anzahl von Befestigungsmitteln - wie zum Beispiel eine Stange - betätigt werden muss, so dass sich eine deutliche Zeiteinsparung beim Wechsel des Messers ergibt.
Allerdings weisen auch die beschriebenen Befestigungssysteme Nachteile auf.The WO 0078548 A1 shows a clamping device for a doctor blade, wherein a clamping rail has been provided with a T-shaped groove, so that this, in operative connection with the spring of the carrier, the doctor blade can clamp.
The clamping plates are flexible plates which are held on the doctoring chamber body by screws or similar fixing means, but are not finally fixed. Clamping takes place on the side of the screws facing the roller, in that the fastening means elongated in the axial direction (z) of the roller exert a force on the clamping plate which points away from the doctor chamber body. However, the clamping plate is held by the screws on the doctoring chamber body so that the clamping plate bends and on the side of the screws facing the roller exerts a force on the doctor blade which is directed onto the doctoring chamber body and fixes the doctor blade to the doctoring chamber body. If the force exerted by the elongated fastener force effect is suppressed, no force is exerted on the doctor blade and possibly the clamping plate.
As a rule, the fastening means which are elongate in the axial direction (z) of the roller are rods with a partially round cross section, which are rotatably mounted in the doctor chamber body. Such rods are then provided with a recess or a projection, which results in that upon rotation of the rod, a force is exerted, the resultant of which points away from the doctoring chamber. However, it is also conceivable to place at this point an inflatable tube or other body which can increase its volume and in this way exerts a force on the clamping plate, the resultant of which points away from the doctor chamber body.
Finally, it should be stressed again that the great advantage of this type of attachment is that in comparison to the fixation of the doctor blade by loosening screws only a significantly smaller number of fasteners - such as a rod - must be operated so that there is a significant time savings when changing the knife.
However, the fastening systems described also have disadvantages.

Wie aus der vorstehenden Erklärung und der nachstehenden gegenständlichen Beschreibung hervorgeht, muss eine größere Anzahl von Schrauben oder ähnlichen Befestigungsmitteln zumindest das Klemmblech durchstoßen, um die erwähnte Vorfixierung des Klemmblechs vorzunehmen. Daher haben die beschriebenen Rakelkammern im Bereich der Klemmbleche zahlreiche Bohrungen und Vorsprünge (Schrauben). Durch die an dieser Stelle der Farbwerke unabdingbaren Restmengen an austretender Farbe bilden sich natürlich gerade an den Bohrungen und Vorsprüngen (Schrauben) Farbablagerungen, die die Reinigung der Maschine und zum Teil auch das Wechseln der Messer erschweren.
Daher ist es Aufgabe der vorliegenden Erfindung, eine Rakelkammer bereitzustellen, die mit weniger Bohrungen und Vorsprüngen (Schrauben) im Bereich der Klemmbleche auskommt.As will be understood from the foregoing explanation and description hereinbelow, a larger number of screws or similar fasteners must at least pierce the clamping plate to effect the aforesaid prefixing of the clamping plate. Therefore, the blade chambers described in the field of clamping plates numerous holes and projections (screws). Of course, due to the residual amounts of escaping paint which are indispensable at this location of the inking units, color deposits form naturally at the bores and projections (screws) which make it difficult to clean the machine and in some cases to change the knives.
It is therefore an object of the present invention to provide a doctoring chamber, which manages with fewer holes and projections (screws) in the field of clamping plates.

Diese Aufgabe wird dadurch gelöst, dass.

  • die Resultierende der von den Befestigungsmitteln aufgebrachten Kraft auf den Rakelkammerkörper zeigt.
This object is achieved in that.
  • shows the resultant of the force applied by the fastening means on the Rakelkammerkörper.

Diese Maßnahme macht die beim Stand der Technik von den Schrauben ausgeführte Haltefunktion überflüssig. Damit sind keine Bohrungen in dem Klemmblech und keine Vorsprünge (Schrauben), die über das Klemmblech hinausragen, mehr notwendig. Im Bereich des Klemmblechs treten geringere Verunreinigungen auf.
Darüber hinaus kann auf die Verwendung von Federblech zur Herstellung des Klemmblechs verzichtet werden, da die zur Fixierung des Rakelmessers notwendige Anpresskraft nicht aus der Biegung des Bleches beziehungsweise seiner Rückstellkraft resultiert, sondern direkt von den Befestigungsmitteln ausgeht.This measure makes the holding function performed by the screws in the prior art superfluous. Thus, no holes in the clamping plate and no projections (screws), which protrude beyond the clamping plate, more necessary. In the area of the clamping plate occur less impurities.
In addition, can be dispensed with the use of spring plate for the production of the clamping plate, since the necessary to fix the doctor blade pressing force does not result from the bending of the sheet or its restoring force, but emanating directly from the fastening means.

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

Fig. 1
Einen Schnitt durch eine Rakelkammer der Standes der Technik im Betriebszustand
Fig. 2
Einen Schnitt durch eine Rakelkammer des Standes der Technik, welche von der Walze abgestellt ist.
Fig. 3
Draufsicht auf ein Klemmblech des Standes der Technik
Fig. 4
Einen Schnitt durch eine erfindungsgemäße Rakelkammer im Betriebszustand
Fig. 5
Einen Schnitt durch eine erfindungsgemäße Rakelkammer, welche von der Walze abgestellt ist.
Fig. 6
Eine vergrößerte Darstellung des Querschnitts der Stange 4
Further advantages and embodiments of the invention will become apparent from the subject description and the claims.
The individual figures show:
Fig. 1
A section through a doctoring chamber of the prior art in operating condition
Fig. 2
A section through a doctoring chamber of the prior art, which is turned off by the roller.
Fig. 3
Top view of a clamping plate of the prior art
Fig. 4
A section through a blade chamber according to the invention in the operating state
Fig. 5
A section through a blade chamber according to the invention, which is turned off by the roller.
Fig. 6
An enlarged view of the cross section of the rod 4th

Die Figur 1 zeigt ein Farbkammerrakel 1 des Standes der Technik. Bekanntlich wird bei Farbkammerrakeln 1 die Farbkammer 8 durch die einzufärbende Walze 6 des Rakelkammerkörpers 5, welcher 5 natürlich auch aus mehreren Teilen bestehen kann, und die Rakelmesser 2 begrenzt. Wie bereits in der einleitenden Beschreibung hinlänglich dargestellt, werden die beiden Rakelmesser 2 der Farbkammerrakel 1 jeweils durch ein Klemmblech 3, welches das ihm 3 zugeordnete Rakelmesser gegen den Rakelkammerkörper 5 drückt, fixiert. Die hierzu benötigte Kraft ist die Rückstellkraft des Klemmbleches, die entsteht, da das Klemmblech zwischen dem langgestreckten Befestigungselement 4, welches im vorliegenden Fall als Stange ausgeprägt ist sowie dem Kopf der Schraube 7 und dem Rakelkammerkörper 5 gebogen wird.
Wie bereits erwähnt, zeigt die Resultierende der Kraft, die die Stange 4 auf das Klemmblech ausübt, von der Rakelkammer weg. Diese Kraft kommt dadurch zustande, dass die Stange 4 mit einer Ausnehmung 16 versehen ist, die beim Einlegen des Klemmbleches 3 mit der Oberfläche des Rakelkammerkörpers 5 bündig ist, wie Figur 2 zeigt. Das Drehen der Stange 4 bringt dann den kreisförmigen Teil der Umfangsfläche der größtenteils kreiszylinderförmig geformten Stange 4 in Kontakt mit dem Klemmblech 3, das kontaktierte Teil des Klemmblechs wird nach außen gedrückt und die bereits geschilderte Rückstellkraft des Bleches 3 fixiert das Rakelmesser.
Figur 3 zeigt ein Klemmblech, welches für den Einsatz in der in den Figuren 1 und 2 dargestellten Rakelkammer geeignet ist.The FIG. 1 shows a paint chamber doctor blade 1 of the prior art. As is well known, in color-chambered doctor blades 1, the ink chamber 8 is limited by the inking roller 6 of the doctoring chamber body 5, which of course may also consist of several parts, and the doctor blade 2 is limited. As already sufficiently illustrated in the introductory description, the two doctor blades 2 of the ink chamber doctor blade 1 are each fixed by a clamping plate 3 which presses the doctor blade associated with it against the doctor chamber body 5. The force required for this purpose is the restoring force of the clamping plate, which arises because the clamping plate between the elongated fastening element 4, which is pronounced in the present case as a rod and the head of the screw 7 and the doctor chamber body 5 is bent.
As already mentioned, the resultant of the force which the rod 4 exerts on the clamping plate points away from the doctoring chamber. This force is due to the fact that the rod 4 is provided with a recess 16 which is flush when inserting the clamping plate 3 with the surface of the Rakelkammerkörpers 5, such as FIG. 2 shows. The rotation of the rod 4 then brings the circular part of the peripheral surface of the largely circular cylindrical shaped rod 4 in contact with the clamping plate 3, the contacted part of the clamping plate is pressed outwards and the already described restoring force of the sheet 3 fixes the doctor blade.
FIG. 3 shows a clamping plate, which for use in the in the Figures 1 and 2 illustrated doctoring chamber is suitable.

Die runden Bohrungen 10 und die Nuten 11 bilden die Durchbrüche 9. Hierbei ist der Durchmesser der Bohrungen 10 mit dem notwendigen Spiel auf den Kopf der Schraube 7 abgestimmt, während die Breite der Nut 11 auf den Durchmesser des Schrauben halses abgestimmt ist. Wenn das Klemmblech aus seiner Arbeitsposition entfernt werden soll, wird zunächst das Klemmblech entspannt, indem die Stange 4 so gedreht wird, dass die Ausnehmung in Kontakt mit dem Blech 3 kommt. Da nun von der Stange 4 keine Kraftbeziehungsweise Biegewirkung auf das Klemmblech 4 mehr ausgeht, wird es nur noch locker von den Schrauben 7 gehalten. Das Blech wird daraufhin von seiner Arbeitsposition, in der die Schraubenhälse durch die Nuten 11 greifen, in die Entnahmeposition gebracht, so dass die Köpfe der Schrauben 7 bei der Entnahme durch die Bohrungen 10 des Klemmblechs 3 gleiten können.
Die Figuren 4 und 5 zeigen ein erfindungsgemäße Kammerrakel, bei dem die Klemmbleche 3 mit einem Aufsatzstück 13, welches ein Verbindungselement 14 umfasst, versehen ist. Das Verbindungselement ist auf die Ausnehmung 15 der Stange 4 abgestimmt. Die Form der Ausnehmung 15 ist in Figur 6 noch einmal dargestellt. Beim Einlegen von Klemmblech 3 und Aufsatzstück 13 gleitet das Verbindungselement an der Fläche 18 der Stange 4 entlang. Beim Auftreffen des Verbindungselements auf Ausnehmung 15 der Stange 4 wird Stange 4 in Klemmposition gedreht. Nach Einlegen des Messers wird durch Drehen von Stange 4 das Messer geklemmt. Bei der Drehung der Stange 4 in Schließrichtung, gleitet das Verbindungselement zunächst an der ebenen Fläche 18 der Ausnehmung 15 entlang, um dann von dem Absatz 17 der Ausnehmung mitgenommen zu werden. Auf diese Weise wird die aus dem Aufsatzstück 13 und dem Klemmblech 3 bestehende Einheit in die zur Fixierung des Rakelmessers 2 geeignete Position gebracht.
Figur 6 zeigt eine Draufsicht auf das Klemmblech 3, das in der in den Figuren 4 und 5 gezeigten erfindungsgemäßen Kammerrakel Verwendung findet. Bezugszeichenliste 1 Farbkammerrakel 2 Rakelmesser 3 Klemmblech 4 Befestigungselement 5 Rakelkammerkörper 6 Walze 7 Schraube 8 Farbkammer 9 Durchbruch 10 Bohrung 11 Nut 12 13 Aufsatzstück 14 Verbindungselement 15 Ausnehmung 17 Absatz 18 Fläche The round holes 10 and the grooves 11 form the apertures 9. Here, the diameter of the holes 10 is matched with the necessary play on the head of the screw 7, while the width of the groove 11 is tuned to the diameter of the screw neck. When the clamping plate is to be removed from its working position, first the clamping plate is relaxed by the rod 4 is rotated so that the recess comes into contact with the plate 3. Since now no force or bending effect on the clamping plate 4 emanates from the rod 4, it is only loosely held by the screws 7. The sheet is then brought from its working position in which the screw necks engage through the grooves 11 in the removal position, so that the heads of the screws 7 can slide during removal through the holes 10 of the clamping plate 3.
The FIGS. 4 and 5 show a chamber doctor blade according to the invention, in which the clamping plates 3 is provided with an attachment piece 13 which comprises a connecting element 14. The connecting element is matched to the recess 15 of the rod 4. The shape of the recess 15 is in FIG. 6 shown again. When inserting clamping plate 3 and attachment piece 13, the connecting element slides on the surface 18 of the rod 4 along. Upon impact of the connecting element on the recess 15 of the rod 4 rod 4 is rotated in the clamping position. After inserting the knife, the knife is clamped by turning rod 4. During the rotation of the rod 4 in the closing direction, the connecting element slides first along the flat surface 18 of the recess 15 along, to then be taken from the shoulder 17 of the recess. In this way, the unit consisting of the attachment piece 13 and the clamping plate 3 is brought into the position suitable for fixing the doctor blade 2.
FIG. 6 shows a plan view of the clamping plate 3, which in the in FIGS. 4 and 5 used chambered doctor blade according to the invention is used. LIST OF REFERENCE NUMBERS 1 Ink chamber doctor blade 2 doctor blade 3 clamping plate 4 fastener 5 Doctor blade chamber body 6 roller 7 screw 8th ink chamber 9 breakthrough 10 drilling 11 groove 12 13 top section 14 connecting element 15 recess 17 paragraph 18 area

Claims (6)

  1. Chambered doctor blade (1)
    - with two doctor blade knives (2) that can be set up in roof-like fashion against a roller (6),
    - from which both the doctor blade knives (2) can be fixed on the doctor blade chamber body (5) by a clamping plate (3),
    - and the clamping plate (3) is in active connection with the long fasteners (4) stretching in the axial direction (z) of the roller (6),
    - which are arranged essentially parallel to the clamping plate (3)
    - and from which the force required for fixing at least one doctor blade knife (2) is applied,
    - whereby the resulting of the force applied by the fasteners (4) points to the doctor blade chamber body (5),
    - whereby the fasteners (4) are created by at least one rod (4),
    - by the relative movement of which to the colour chamber doctor blade (1) the required force which is required for the fixing of at least a doctor blade knife (2) is made available,
    characterized in that
    - the rod (4) disposes of a mainly round cross sectional area,
    - which shows a cut (15) suited for the clamping of the clamping plate (3).
  2. Chambered doctor blade (1),
    - with two doctor blade knives (2) that can be set up in roof-like fashion against a roller (6),
    - from which both the doctor blade knives (2) can be fixed on the doctor blade chamber body (5) by a clamping plate (3),
    - and the clamping plate (3) is in active connection with the long fasteners (4) stretching in the axial direction (z) of the roller (6),
    - which are arranged essentially parallel to the clamping plate (3)
    - and from which the force required for fixing at least one doctor blade knife (2) is applied,
    - whereby the resulting of the force applied by the fasteners (4) points to the doctor blade chamber body (5),
    - whereby the fasteners (4) are created by at least one rod (4),
    - by the relative movement of which to the colour chamber doctor blade (1) the required force which is required for the fixing of at least a doctor blade knife (2) is made available,
    characterized in that
    - the clamping plate (3) is equipped with at least one specially shaped top piece (13) in active connection with the long fasteners (4) stretching in the axial direction (z) of the roller (6),
    - the rod (4) comprises of a mainly round cross sectional area
    - which shows a cut (15) suited for the clamping of the clamping plate (3).
  3. Chambered doctor blade (1) according to one of the preceding claims,
    characterized in that
    the relative movement of the rod (4) consists of a rotation around its principal axis of inertia.
  4. Chambered doctor blade (1) according to one of the preceding claims,
    characterized in that
    the rod (4) is fixed rotatably in the doctor blade chamber body (5).
  5. Chambered doctor blade (1) according to the claims 2 to 4,
    characterized in that
    the top piece (13) disposes of a connecting element (14) which can be put into the cut (15) of the cross sectional area of the rod (4).
  6. Chambered doctor blade (1) according to the claims 2 to 5,
    characterized in that
    the length of the top piece (13), the position of the connecting element (14) at the top piece (13) and the position of the rod (4) and the cut (15) are adapted in such a way
    - that the connecting element (14) of the clamping plate (3) situated outside of the doctor blade (8) can be put form-closed into the cut (15) at the beginning of the fixing process of the doctor blade and
    - that the turning of the rod (4) required for the fixing of the doctor blade (2) feeds the connecting element (14) and the clamping plate (3) in the position (a) suited for fixing.
EP03775395A 2002-11-28 2003-11-26 Ink reservoir doctor blade Expired - Lifetime EP1567342B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10255411A DE10255411A1 (en) 2002-11-28 2002-11-28 Ink chamber doctor blade
DE10255411 2002-11-28
PCT/EP2003/013347 WO2004048097A1 (en) 2002-11-28 2003-11-26 Ink reservoir doctor blade

Publications (2)

Publication Number Publication Date
EP1567342A1 EP1567342A1 (en) 2005-08-31
EP1567342B1 true EP1567342B1 (en) 2008-07-09

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Family Applications (1)

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EP03775395A Expired - Lifetime EP1567342B1 (en) 2002-11-28 2003-11-26 Ink reservoir doctor blade

Country Status (6)

Country Link
US (1) US7287471B2 (en)
EP (1) EP1567342B1 (en)
AT (1) ATE400435T1 (en)
AU (1) AU2003283430A1 (en)
DE (2) DE10255411A1 (en)
WO (1) WO2004048097A1 (en)

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WO2004048097A1 (en) 2004-06-10
US7287471B2 (en) 2007-10-30
DE10255411A1 (en) 2004-06-24
AU2003283430A1 (en) 2004-06-18
EP1567342A1 (en) 2005-08-31
DE50310126D1 (en) 2008-08-21
ATE400435T1 (en) 2008-07-15
US20060027112A1 (en) 2006-02-09

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