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EP2627819B1 - Device for holding doctor blades - Google Patents

Device for holding doctor blades Download PDF

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Publication number
EP2627819B1
EP2627819B1 EP12746348.7A EP12746348A EP2627819B1 EP 2627819 B1 EP2627819 B1 EP 2627819B1 EP 12746348 A EP12746348 A EP 12746348A EP 2627819 B1 EP2627819 B1 EP 2627819B1
Authority
EP
European Patent Office
Prior art keywords
bottom plate
plate
top plate
receptacle
cover plate
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.)
Active
Application number
EP12746348.7A
Other languages
German (de)
French (fr)
Other versions
EP2627819A1 (en
Inventor
Joachim Knopp
Axel Borgmann
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.)
Joh Clouth GmbH and Co KG
Original Assignee
Joh Clouth GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Joh Clouth GmbH and Co KG filed Critical Joh Clouth GmbH and Co KG
Priority to SI201230118T priority Critical patent/SI2627819T1/en
Priority to PL12746348T priority patent/PL2627819T3/en
Publication of EP2627819A1 publication Critical patent/EP2627819A1/en
Application granted granted Critical
Publication of EP2627819B1 publication Critical patent/EP2627819B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors
    • D21G3/005—Doctor knifes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors

Definitions

  • the invention relates to a device for holding doctor blades with a bottom plate and a cover plate, wherein the bottom plate and the cover plate are pivotally connected to each other via a pivot bearing and the doctor blade is fixed to the cover plate, wherein both sides of the pivot bearing each have an expandable tube between the bottom plate and the cover plate is provided.
  • a scraper or scraper blade has among other things the task of cleaning the surface of a roller, or a cylinder.
  • a scraper blade causes the paper web guided over the relevant roll of the paper machine to not wind up on the roll in the event of a web break, but instead leaves the roll at the predetermined location, for example to enter a collecting chute.
  • This task must be guaranteed with 100% certainty by the scraper blade, as otherwise paper-making and possibly even damage to the paper machine can occur.
  • the doctor blade also has the task to clean the surface of the roller, so that the paper web is not marked. For this reason, the scraper blade mounted in its holding device must rest as evenly as possible over its entire length on the roller.
  • the holding device is usually constructed in two parts and has a bottom plate, which is usually attached to the machine frame. At this bottom plate, a cover plate is pivotally mounted, so that the doctor blade can be lifted from the roll surface or placed on this and pressed ( EP 1 567 715 B1 ).
  • the invention has for its object to provide a device for holding doctor blades, which can be easily installed and cleaned and is also well protected against contamination. This object is achieved with a device having the features of claim 1.
  • the pivot bearing with a radially supported bearing axis on the bottom plate or the cover plate and a receptacle for the bearing axis on the cover plate or the bottom plate ensures that during disassembly of the device, the bearing axis one and the recording remains on the other component.
  • This measure has the significant advantage that during disassembly no additional components incurred and during assembly no additional components are required. For example, no loose axle must be pushed into receiving eyes on the base plate and cover plate after these receiving eyes have been aligned. Such a process usually requires a number of aids, such as a cover plate retainer, alignment device for aligning the cover plate and bottom plate, and usually several persons monitoring the joining of the components.
  • the bearing axis need only be threaded into the receptacle to then fully insert it together with the cover plate without further aids. The cover plate and the bottom plate are then pivotally connected together.
  • the cover plate has a keder guide chamber which is located on the side opposite the doctor blade (rear side).
  • a flexible seal is attached to the bottom plate on the Keder Operationsshunt side facing the free end is provided with a piping, which engages in the Keder Operationsshunt and is held by this.
  • the gasket is sealed by a fluid-tight material, e.g. a rubberized fabric web or other material formed.
  • This seal is fixed with its one, in the longitudinal direction end to the bottom plate and fixed with its provided at the other end piping in the Keder operationssch the cover plate. In this way, the piping can be inserted simultaneously during insertion of the bearing axis in its Keder arrangementssch.
  • the invention provides that the cover plate at the clamping point for the doctor blade has a pointing in the direction of the bottom plate deflection plate, which serves to keep liquids with which the roller is wetted, or dirt away from the interior.
  • the deflector closes or covers the roller-facing gap between the bottom plate and the cover plate.
  • the bottom plate is formed like a trough with two side walls. This serves to accommodate further components, e.g. the pressure hoses for pivoting the cover plate and thus for targeted pressing and lifting the doctor blade.
  • electrical lines or other hydraulic or pneumatic supply lines can be laid in the bottom plate.
  • the bottom plate has a substantially W-shaped cross-section.
  • the outer legs form the side walls and protect the interior of the bottom plate.
  • the bottom plate is formed by a profiled bending plate, in which the bearing axis is integrated by forming.
  • This bottom plate is torsionally rigid and fast and inexpensive to produce. Since the bottom plate is in one piece, the interior is protected without additional measures from below and from the side on the side walls on the one hand against mechanical effects, on the other hand against penetrating media.
  • the bearing axis is substantially ⁇ -shaped, so that it can also serve as a bearing for a tube, which is inserted into the round and hollow opening and then clamped or welded.
  • the tube has a thread and serves to attach the cover plate.
  • the receptacle is formed in the form of an open towards the bottom plate C.
  • the opening angle of the recording of the pivot angle is defined and can optionally be adjusted by lateral supports on the web of the bearing axis.
  • a trouble-free insertion of the bearing axis and thus easy mounting of the base plate and cover plate is achieved in that the receptacle extends over the entire length of the cover plate or sections over the length thereof. If the receptacle extends in sections, then the bearing axis only needs to be inserted into the first two or three sections of the receptacle and is replaced by then guided so that it intervenes without aids in the following sections. As a result, a cross-change possibility is created in a simple manner.
  • FIG. 1 shows a generally designated 10 holding device with a bottom plate 12 and a cover plate 14.
  • On the cover plate 14 are holding fingers 16 (FIG. FIG. 2 ) is provided, with which a scraper blade 18 is held and pressed onto the surface 20 of a roller 22.
  • a deflector plate 24 is mounted, which engages over the front side wall 26 of the bottom plate 12 and shields, so that in the space 28 between the bottom plate 12 and the cover plate 14 no dirt or liquid can penetrate.
  • a flexible flat seal 32 is screwed, the free end having a piping 34 which is inserted into a provided on the cover plate 14 Keder Operationsssch 36. In this way, the gap 28 is sealed.
  • the bottom plate 12 is formed by a profiled bending plate 38 and is formed centrally substantially ⁇ -shaped.
  • a bearing shaft 40 is formed, in which is inserted for fixing the cover plate 14, a tube 42 and, for example, fixed by welding.
  • FIG. 3 shows the cover plate 14 which has in its central region on its underside a slotted in the direction of the bottom plate 12 receptacle 44, which serves to receive the bearing shaft 40.
  • the receptacle 44 and the bearing shaft 40 form a pivot bearing 46 for the cover plate 14 and thus for the scraper blade 18.
  • the receptacle 44 either extends completely over the length of the cover plate 14 or is divided into individual sections with intermediate free spaces.
  • the bearing shaft 40 may be formed continuously, but it may also be divided into sections so that remain between the sections of free space in which bolts or screws 60 can be inserted into the bottom plate 12, via which the bottom plate 12 is secured to the bracket 48 ,

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  • Paper (AREA)
  • Cleaning In General (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Halten von Schaberklingen mit einer Bodenplatte und einer Deckplatte, wobei die Bodenplatte und die Deckplatte über ein Schwenklager schwenkbar miteinander verbunden sind und die Schaberklinge an der Deckplatte befestigt ist, wobei beidseits des Schwenklagers jeweils ein expandierbarer Schlauch zwischen der Bodenplatte und der Deckplatte vorgesehen ist.The invention relates to a device for holding doctor blades with a bottom plate and a cover plate, wherein the bottom plate and the cover plate are pivotally connected to each other via a pivot bearing and the doctor blade is fixed to the cover plate, wherein both sides of the pivot bearing each have an expandable tube between the bottom plate and the cover plate is provided.

Eine Schabvorrichtung oder Schaberklinge besitzt unter anderem die Aufgabe, die Oberfläche einer Walze, beziehungsweise eines Zylinders, zu reinigen. Im Falle einer Papiermaschine bewirkt eine derartige Schaberklinge, dass die über die betreffende Walze der Papiermaschine geführte Papierbahn im Falle eines Bahnrisses sich nicht auf der Walze aufwickelt, sondern die Walze an der vorgegebenen Stelle verlässt, um zum Beispiel in einen Auffangschacht zu gelangen. Diese Aufgabe muss die Schaberklinge mit 100%-iger Sicherheit gewährleisten, da es sonst zu erheblichen Störungen bei der Papierherstellung, und unter Umständen sogar zu einer Beschädigung der Papiermaschine kommen kann. Die Schaberklinge hat zudem die Aufgabe, die Oberfläche der Walze zu reinigen, so dass die Papierbahn nicht markiert wird. Aus diesem Grunde muss die in ihrer Haltevorrichtung befestigte Schaberklinge möglichst gleichmäßig über ihre gesamte Länge an der Walze anliegen. Zum Anpressen der Schaberklinge auf die Walzenoberfläche ist die Haltevorrichtung üblicherweise zweiteilig aufgebaut und besitzt eine Bodenplatte, die meistens am Maschinengestell befestigt ist. An dieser Bodenplatte ist eine Deckplatte schwenkbar befestigt, so dass die Schaberklinge von der Walzenoberfläche abgehoben beziehungsweise auf diese aufgesetzt und angepresst werden kann ( EP 1 567 715 B1 ).A scraper or scraper blade has among other things the task of cleaning the surface of a roller, or a cylinder. In the case of a paper machine, such a scraper blade causes the paper web guided over the relevant roll of the paper machine to not wind up on the roll in the event of a web break, but instead leaves the roll at the predetermined location, for example to enter a collecting chute. This task must be guaranteed with 100% certainty by the scraper blade, as otherwise paper-making and possibly even damage to the paper machine can occur. The doctor blade also has the task to clean the surface of the roller, so that the paper web is not marked. For this reason, the scraper blade mounted in its holding device must rest as evenly as possible over its entire length on the roller. For pressing the doctor blade on the roll surface, the holding device is usually constructed in two parts and has a bottom plate, which is usually attached to the machine frame. At this bottom plate, a cover plate is pivotally mounted, so that the doctor blade can be lifted from the roll surface or placed on this and pressed ( EP 1 567 715 B1 ).

Es hat sich gezeigt, dass insbesondere in der Nasspartie der Papiermaschine die Haltevorrichtungen relativ stark verschmutzen, so dass sie häufig gereinigt werden müssen. Hierfür muss die Deckplatte von der Bodenplatte entfernt werden, so dass die Haltevorrichtung geöffnet werden kann. Aus der WO 2004/042 143 A1 ist eine Schaberklingenhaltevorrichtung bekannt geworden, bei welcher die Bodenplatte ein Lagerrohr aufweist, um welches die Deckplatte verschwenkbar gelagert ist. Zum Öffnen dieser Haltevorrichtung wird die Deckplatte in Achsrichtung des Lagerrohrs abgezogen, so dass der Innenraum zugänglich wird. Bei Walzen, die eine Länge von 12 m besitzen können, muss die Haltevorrichtung für die Schaberklinge ebenfalls diese Länge aufweisen und es hat sich gezeigt, dass bei einer derartigen Länge die Reibungskräfte entlang des Lagerrohrs relativ groß sind, so dass die Deckplatte nur mit Mühe abgezogen beziehungsweise aufgeschoben werden kann.It has been shown that, especially in the wet end of the paper machine, the holding devices become relatively heavily soiled, so that they have to be cleaned frequently. For this purpose, the cover plate must be removed from the bottom plate, so that the holding device can be opened. From the WO 2004/042 143 A1 is a Schaberklingenhaltevorrichtung has become known, in which the bottom plate has a bearing tube about which the cover plate is pivotally mounted. To open this holding device, the cover plate is removed in the axial direction of the bearing tube, so that the interior is accessible. For rolls that may be 12 meters in length, the doctor blade holder must also be of that length and it has been found that with such a length, the frictional forces along the bearing tube are relatively large, so that the cover plate is difficult to peel off or can be deferred.

Aus der WO 2009/076128 A1 ist ebenfalls eine Haltevorrichtung für Schaberklingen bekannt. Diese ist aber aufwändig herzustellen, da sie aus einem Stranggussteil besteht, welches zusätzlich noch spanabhebend bearbeitet werden muss. Diese Haltevorrichtung neigt zudem stark zu verschmutzen. Auch die AT 503 922 A4 zeigt eine derartige Haltevorrichtung.From the WO 2009/076128 A1 is also a holder for doctor blades known. However, this is complicated to manufacture, since it consists of a continuous casting, which additionally has to be machined. This fixture also tends to dirty heavily. Also the AT 503 922 A4 shows such a holding device.

Aus der EP 1 734 181 A 1 ist eine Vorrichtung bekannt, bei der der in Längsrichtung der Vorrichtung verlaufende Spalt zwischen der Bodenplatte und der Deckplatte durch eine an der Schaberklingenseite angeordnete Dichtung, z.B. in Form eines Federbleches, und ein weiteres, an der der Schaberklinge gegenüber liegenden Seite angeordnetes Federblech abgedichtet ist.From the EP 1 734 181 A 1 a device is known in which the running in the longitudinal direction of the device gap between the bottom plate and the cover plate is sealed by a arranged on the doctor blade side seal, for example in the form of a spring plate, and another, arranged on the scraper blade opposite side spring plate.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Halten von Schaberklingen bereitzustellen, die einfacher montiert und gereinigt werden kann und außerdem gut gegen Verschmutzung geschützt ist. Diese Aufgabe wird mit einer Vorrichtung gelöst, die die Merkmale des Anspruchs 1 aufweist.The invention has for its object to provide a device for holding doctor blades, which can be easily installed and cleaned and is also well protected against contamination. This object is achieved with a device having the features of claim 1.

Durch die Ausgestaltung des Schwenklagers mit einer radial abgestützten Lagerachse an der Bodenplatte oder der Deckplatte und einer Aufnahme für die Lagerachse an der Deckplatte oder der Bodenplatte wird sicher gestellt, dass bei der Demontage der Vorrichtung die Lagerachse am einen und die Aufnahme am anderen Bauteil verbleibt. Diese Maßnahme weist den wesentlichen Vorteil auf, dass bei der Demontage keine zusätzlichen Bauteile anfallen und bei der Montage keine zusätzlichen Bauteile erforderlich sind. Es muss z.B. keine lose Achse in Aufnahmeaugen an der Bodenplatte und Deckplatte eingeschoben werden, nachdem diese Aufnahmeaugen in Flucht gebracht wurden. Für einen derartigen Vorgang bedarf es üblicherweise einer Reihe von Hilfsmittel, wie eine Haltevorrichtung für die Deckplatte, Ausrichtvorrichtung zum Ausrichten von Deckplatte und Bodenplatte, und üblicherweise mehrerer Personen, die die das Fügen der Bauteile überwachen. Bei der erfindungsgemäßen Vorrichtung muss die Lagerachse lediglich in die Aufnahme eingefädelt werden, um sie anschließend zusammen mit der Deckplatte ohne weitere Hilfsmittel vollständig einzuschieben. Die Deckplatte und die Bodenplatte sind dann schwenkbar miteinander verbunden.Due to the design of the pivot bearing with a radially supported bearing axis on the bottom plate or the cover plate and a receptacle for the bearing axis on the cover plate or the bottom plate ensures that during disassembly of the device, the bearing axis one and the recording remains on the other component. This measure has the significant advantage that during disassembly no additional components incurred and during assembly no additional components are required. For example, no loose axle must be pushed into receiving eyes on the base plate and cover plate after these receiving eyes have been aligned. Such a process usually requires a number of aids, such as a cover plate retainer, alignment device for aligning the cover plate and bottom plate, and usually several persons monitoring the joining of the components. In the apparatus according to the invention, the bearing axis need only be threaded into the receptacle to then fully insert it together with the cover plate without further aids. The cover plate and the bottom plate are then pivotally connected together.

Erfindungsgemäß weist die Deckplatte eine Kederführungskammer auf, die sich an der der Schaberklinge gegenüber liegenden Seite (Rückseite) befindet. Außerdem ist an der Bodenplatte an der der Kederführungskammer zugewandten Seite eine flexible Dichtung befestigt ist, deren freies Ende mit einem Keder versehen ist, der in die Kederführungskammer eingreift und von dieser gehalten wird. Die Dichtung wird von einem fluiddichten Material, z.B. einer gummierten Gewebebahn oder einem anderen Material gebildet. Diese Dichtung ist mit ihrem einen, in Längsrichtung verlaufenden Ende an der Bodenplatte befestigt und mit ihrem am anderen Ende vorgesehenen Keder in der Kederführungskammer der Deckplatte festgelegt. Auf diese Weise kann der Keder gleichzeitig beim Einführen der Lagerachse in seine Kederführungskammer eingeschoben werden.According to the invention, the cover plate has a keder guide chamber which is located on the side opposite the doctor blade (rear side). In addition, a flexible seal is attached to the bottom plate on the Kederführungskammer side facing the free end is provided with a piping, which engages in the Kederführungskammer and is held by this. The gasket is sealed by a fluid-tight material, e.g. a rubberized fabric web or other material formed. This seal is fixed with its one, in the longitudinal direction end to the bottom plate and fixed with its provided at the other end piping in the Kederführungskammer the cover plate. In this way, the piping can be inserted simultaneously during insertion of the bearing axis in its Kederführungskammer.

Weiterhin sieht die Erfindung vor, dass die Deckplatte an der Einspannstelle für die Schaberklinge ein in Richtung der Bodenplatte zeigendes Abweisblech aufweist, was dazu dient, Flüssigkeiten, mit welchen die Walze benetzt ist, oder Schmutz vom Innenraum fern zu halten. Das Abweisblech verschließt oder überdeckt den der Walze zugewandten Spalt zwischen der Bodenplatte und der Deckplatte.Furthermore, the invention provides that the cover plate at the clamping point for the doctor blade has a pointing in the direction of the bottom plate deflection plate, which serves to keep liquids with which the roller is wetted, or dirt away from the interior. The deflector closes or covers the roller-facing gap between the bottom plate and the cover plate.

Bei einem Ausführungsbeispiel ist die Bodenplatte wannenartig mit zwei Seitenwänden ausgebildet. Diese dient zur Aufnahme weiterer Bauteile, z.B. der Druckschläuche zum Verschwenken der Deckplatte und somit zum gezielten Anpressen und Abheben der Schaberklinge. Außerdem können elektrische Leitungen oder andere hydraulische oder pneumatische Versorgungsleitungen in der Bodenplatte verlegt werden.In one embodiment, the bottom plate is formed like a trough with two side walls. This serves to accommodate further components, e.g. the pressure hoses for pivoting the cover plate and thus for targeted pressing and lifting the doctor blade. In addition, electrical lines or other hydraulic or pneumatic supply lines can be laid in the bottom plate.

Bei einem bevorzugten Ausführungsbeispiel weist die Bodenplatte einen im wesentlichen W-förmigen Querschnitt auf. Dabei bilden die äußeren Schenkel die Seitenwände und schützen den Innenraum der Bodenplatte.In a preferred embodiment, the bottom plate has a substantially W-shaped cross-section. The outer legs form the side walls and protect the interior of the bottom plate.

Bei einer einerseits stabilen, andererseits preiswerten Variante der Vorrichtung wird die Bodenplatte von einem profilierten Biegeblech gebildet, in welches die Lagerachse durch Umformung integriert ist. Diese Bodenplatte ist verwindungssteif und schnell und preiswert herstellbar. Da die Bodenplatte einteilig ist, wird der Innenraum ohne zusätzliche Maßnahmen von unten und von der Seite über die Seitenwände einerseits gegen mechanische Einwirkungen, andererseits gegen eindringende Medien geschützt.In a stable, on the other hand, inexpensive variant of the device, the bottom plate is formed by a profiled bending plate, in which the bearing axis is integrated by forming. This bottom plate is torsionally rigid and fast and inexpensive to produce. Since the bottom plate is in one piece, the interior is protected without additional measures from below and from the side on the side walls on the one hand against mechanical effects, on the other hand against penetrating media.

Mit Vorzug ist die Lagerachse im Wesentlichen Ω-förmig ausgebildet, so dass diese auch als Lager für ein Rohr dienen kann, das in die runde und hohle Öffnung eingeschoben und anschließend geklemmt oder verschweißt wird. Das Rohr weist ein Gewinde auf und dient zur Befestigung der Deckplatte.With preference, the bearing axis is substantially Ω-shaped, so that it can also serve as a bearing for a tube, which is inserted into the round and hollow opening and then clamped or welded. The tube has a thread and serves to attach the cover plate.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist die Aufnahme in Form eines in Richtung der Bodenplatte offenen C ausgebildet. Durch den Öffnungswinkel der Aufnahme wird der Schwenkwinkel definiert und kann gegebenenfalls durch seitliche Auflagen am Steg der Lagerachse eingestellt werden.In an advantageous embodiment of the invention, the receptacle is formed in the form of an open towards the bottom plate C. By the opening angle of the recording of the pivot angle is defined and can optionally be adjusted by lateral supports on the web of the bearing axis.

Ein problemloses Einschieben der Lagerachse und somit eine einfache Montage von Bodenplatte und Deckplatte wird dadurch erzielt, dass die Aufnahme sich über die gesamte Länge der Deckplatte oder abschnittsweise über deren Länge erstreckt. Erstreckt sich die Aufnahme abschnittsweise, dann muss die Lagerachse lediglich in die ersten beiden oder drei Abschnitte der Aufnahme eingeschoben werden und wird von diesen dann geführt, so dass sie ohne Hilfsmittel in die nachfolgenden Abschnitte eingreift. Hierdurch wird auf einfache Weise eine Querwechselmöglichkeit geschaffen.A trouble-free insertion of the bearing axis and thus easy mounting of the base plate and cover plate is achieved in that the receptacle extends over the entire length of the cover plate or sections over the length thereof. If the receptacle extends in sections, then the bearing axis only needs to be inserted into the first two or three sections of the receptacle and is replaced by then guided so that it intervenes without aids in the following sections. As a result, a cross-change possibility is created in a simple manner.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der eine bevorzugte Ausführungsform beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und in den Ansprüchen erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the subclaims and the following description, in which a preferred embodiment is described. The features shown in the drawing and mentioned in the description and in the claims may each be essential to the invention individually or in any combination.

In der Zeichnung zeigen:

Figur 1
eine perspektivische Ansicht der erfindungsgemäßen Haltevorrichtung;
Figur 2
einen Schnitt II - II gemäß Figur 1;
Figur 3
die Deckplatte im Schnitt; und
Figur 4
die Bodenplatte im Schnitt.
In the drawing show:
FIG. 1
a perspective view of the holding device according to the invention;
FIG. 2
a section II - II according to FIG. 1 ;
FIG. 3
the cover plate in section; and
FIG. 4
the bottom plate in section.

Die Figur 1 zeigt eine insgesamt mit 10 bezeichnete Haltevorrichtung mit einer Bodenplatte 12 und einer Deckplatte 14. An der Deckplatte 14 sind Haltefinger 16 (Figur 2) vorgesehen, mit denen eine Schaberklinge 18 gehalten und auf die Oberfläche 20 einer Walze 22 angepresst wird. An der der Walze 20 zugewandten Vorderseite der Deckplatte 14 ist ein Abweisblech 24 montiert, welches die vordere Seitenwand 26 der Bodenplatte 12 übergreift und abschirmt, so dass in den Zwischenraum 28 zwischen der Bodenplatte 12 und der Deckplatte 14 kein Schmutz oder keine Flüssigkeit eindringen kann. An der die Rückseite bildenden Seitenwand 30 der Bodenplatte 12 ist eine flexible flächige Dichtung 32 angeschraubt, deren freies Ende einen Keder 34 aufweist, der in eine an der Deckplatte 14 vorgesehene Kederführungskammer 36 eingesetzt ist. Auf diese Weise ist der Zwischenraum 28 abgedichtet.The FIG. 1 shows a generally designated 10 holding device with a bottom plate 12 and a cover plate 14. On the cover plate 14 are holding fingers 16 (FIG. FIG. 2 ) is provided, with which a scraper blade 18 is held and pressed onto the surface 20 of a roller 22. At the roller 20 facing the front of the cover plate 14, a deflector plate 24 is mounted, which engages over the front side wall 26 of the bottom plate 12 and shields, so that in the space 28 between the bottom plate 12 and the cover plate 14 no dirt or liquid can penetrate. On the back side forming the side wall 30 of the bottom plate 12, a flexible flat seal 32 is screwed, the free end having a piping 34 which is inserted into a provided on the cover plate 14 Kederführungskammer 36. In this way, the gap 28 is sealed.

In der Figur 4 ist außerdem erkennbar, dass die Bodenplatte 12 von einem profilierten Biegeblech 38 gebildet wird und mittig im wesentlichen Ωförmig ausgebildet ist. Dadurch wird eine Lagerachse 40 gebildet, in welche zur Befestigung der Deckplatte 14 ein Rohr 42 eingeschoben und z.B. durch Verschweißung befestigt ist.In the FIG. 4 is also recognizable that the bottom plate 12 is formed by a profiled bending plate 38 and is formed centrally substantially Ω-shaped. As a result, a bearing shaft 40 is formed, in which is inserted for fixing the cover plate 14, a tube 42 and, for example, fixed by welding.

Die Figur 3 zeigt die Deckplatte 14, die in ihrem mittleren Bereich an ihrer Unterseite eine in Richtung der Bodenplatte 12 geschlitzte Aufnahme 44 besitzt, welche zur Aufnahme der Lagerachse 40 dient. Die Aufnahme 44 und die Lagerachse 40 bilden ein Schwenklager 46 für die Deckplatte 14 und somit für die Schaberklinge 18. Dabei erstreckt sich die Aufnahme 44 entweder vollständig über die Länge der Deckplatte 14 oder ist in einzelne Abschnitte mit dazwischen liegenden Freiräumen unterteilt.The FIG. 3 shows the cover plate 14 which has in its central region on its underside a slotted in the direction of the bottom plate 12 receptacle 44, which serves to receive the bearing shaft 40. The receptacle 44 and the bearing shaft 40 form a pivot bearing 46 for the cover plate 14 and thus for the scraper blade 18. In this case, the receptacle 44 either extends completely over the length of the cover plate 14 or is divided into individual sections with intermediate free spaces.

Zum Verschwenken der Deckplatte 14 bezüglich der an einem nur andeutungsweise dargestellten Gestell oder einer Adapterleiste 49 befinden sich im Zwischenraum 28 beidseits des Schwenklagers 46 zwei Druckschläuche 50 und 52. Zum seitlichen Verschluss des Zwischenraums 28 und zum Anschluss der beiden Druckschläuche 50 und 52 an pneumatische oder hydraulische Leitungen dient ein Flansch 54, der mit Schlauchklemmen 56 versehen ist. Eine Sicherung der Deckplatte 14 an der Bodenplatte 12 erfolgt über eine Sicherungsschraube 58, die auf beiden Seiten des Schwenklagers 46 stirnseitig in das Rohr 42 eingeschraubt ist.For pivoting the cover plate 14 with respect to the frame shown on an only vaguely illustrated frame or adapter bar 49 are in the space 28 on both sides of the pivot bearing 46 two pressure hoses 50 and 52. For lateral closure of the space 28 and for connecting the two pressure hoses 50 and 52 to pneumatic or hydraulic lines is a flange 54 which is provided with hose clamps 56. A securing of the cover plate 14 to the bottom plate 12 via a locking screw 58, which is screwed on both sides of the pivot bearing 46 frontally into the tube 42.

Die Lagerachse 40 kann durchgehend ausgebildet sein ,sie kann aber auch in Abschnitte unterteilt sein ,so dass zwischen den Abschnitte Freiräume verbleiben, in denen Bolzen oder Schrauben 60 in die Bodenplatte 12 eingesetzt werden können, über welche die Bodenplatte 12 an der Halterung 48 befestigt wird.The bearing shaft 40 may be formed continuously, but it may also be divided into sections so that remain between the sections of free space in which bolts or screws 60 can be inserted into the bottom plate 12, via which the bottom plate 12 is secured to the bracket 48 ,

Claims (7)

  1. Device for retaining doctor blades (18) having a bottom plate (12) and a top plate (14), wherein the bottom plate (12) and the top plate (14) are pivotally connected with one another via a pivot bearing (46) and the doctor blade (18) is attached on the top plate (14), wherein on each side of the pivot bearing (46) an expandable pressure hose (50, 52) is provided between the bottom plate (12) and the top plate (14), wherein the pivot bearing (46) is formed by a radially supported bearing shaft (40) and a receptacle (44) for the bearing shaft (40), and the bearing shaft (40) is attached to or formed on either the bottom plate (12) or the top plate (14) and the receptacle (44) is attached to or formed on either on the top plate (14) or the bottom plate (12), characterized in that a piping guide chamber (36) is disposed on the top plate (14), which is located in particular on the side opposite the doctor blade (18), that a flexible seal (32) is attached on the bottom plate (12) on the side facing the piping guide chamber (36), with the free end of the flexible seal being provided with a piping (34) engaging in the piping guide chamber (36), that the top plate (14) has at the clamping location for the doctor blade (18) a deflection plate (24) pointing in the direction of the bottom plate (12), and that the seal (32) and the deflection plate (24) seal the gap between the bottom plate (12) and the top plate (14) extending in the longitudinal direction of the device.
  2. Device according to claim 1, characterized in that the bottom plate (12) is shaped as a trough with two side walls (26, 30).
  3. Device according to one of the preceding claims, characterized in that the bottom plate (12) has a substantially W-shaped cross-section.
  4. Device according to one of the preceding claims, characterized in that the bottom plate (12) is formed by a bent sheet metal profile (38), into which the bearing shaft (40) is integrated by forming.
  5. Device according to one of the preceding claims, characterized in that the bearing shaft (40) is substantially Ω-shaped and, in particular, reinforced by a tube (42) or a rod.
  6. Device according to one of the preceding claims, characterized in that the receptacle (44) is in the shape of a C that is open in the direction of the bottom plate (12).
  7. Device according to one of the preceding claims, characterized in that the receptacle (44) extends over the entire length of the top plate (14) or in sections along the length thereof.
EP12746348.7A 2011-08-31 2012-08-14 Device for holding doctor blades Active EP2627819B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201230118T SI2627819T1 (en) 2011-08-31 2012-08-14 Device for holding doctor blades
PL12746348T PL2627819T3 (en) 2011-08-31 2012-08-14 Device for holding doctor blades

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081927A DE102011081927A1 (en) 2011-08-31 2011-08-31 Device for holding doctor blades
PCT/EP2012/065875 WO2013029989A1 (en) 2011-08-31 2012-08-14 Device for retaining scrapers

Publications (2)

Publication Number Publication Date
EP2627819A1 EP2627819A1 (en) 2013-08-21
EP2627819B1 true EP2627819B1 (en) 2014-12-17

Family

ID=46651522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12746348.7A Active EP2627819B1 (en) 2011-08-31 2012-08-14 Device for holding doctor blades

Country Status (8)

Country Link
US (1) US8974638B2 (en)
EP (1) EP2627819B1 (en)
CA (1) CA2845873C (en)
DE (1) DE102011081927A1 (en)
ES (1) ES2531150T3 (en)
PL (1) PL2627819T3 (en)
SI (1) SI2627819T1 (en)
WO (1) WO2013029989A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015069915A1 (en) * 2013-11-06 2015-05-14 Kadant Inc. Doctor blade holder systems
DE102014102579A1 (en) 2014-02-27 2015-08-27 Joh. Clouth Gmbh & Co. Kg Scraper blade device with a doctor blade insertion aid
DE102017119526B4 (en) 2017-08-25 2021-02-25 Joh. Clouth GmbH & Co KG Device for holding doctor blades

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108654B (en) * 1999-04-15 2002-02-28 Metso Paper Inc Load arrangement for paper machine makers
US6202252B1 (en) * 1999-06-03 2001-03-20 Valmet Ltd. Doctoring apparatus
FI4290U1 (en) * 1999-09-14 2000-01-19 Valmet Corp Paper machine scraper
DE10251983A1 (en) 2002-11-08 2004-05-19 Helmut Strauch Doctor blade mounting, to clean roller surfaces in the papermaking and steel industries, has a mounting tube at the base plate to fit into a quadrilateral tube attached to the cover plate
DE102004018421B3 (en) * 2004-04-08 2005-07-21 Joh. Clouth Gmbh & Co. Kg Scraper pressure calibration unit located at periphery of roller or cylinder of paper making-, printing- or calendering machine comprises mounting strip, holder and sensor
DE102005028795B3 (en) 2005-06-16 2006-11-30 Joh. Clouth Gmbh & Co. Kg Doctor blade holder comprises a base plate and a cover plate that are hinged together and secured by more than two fasteners, each comprising a pin block with a pin that fits into a hole in a bearing block
AT502824B1 (en) * 2006-02-16 2007-06-15 Bartelmuss Klaus Ing Doctor blade holder detachable fixing device for paper production plant, has holder fixable at support in operating position, and pressure hose provided between holder and support and clamping holder to support
AT503922B1 (en) 2006-11-23 2008-02-15 Bartelmuss Klaus Ing Bearing for scraper blade holder used in papermaking plant, includes pivot with slotted bearing shell, permitting holder to be moved along axis over entire length of scraper blade
US8321992B2 (en) * 2007-12-06 2012-12-04 Kadant Web Systems, Inc. Integrated doctor blade holders
DE102008029091A1 (en) * 2008-06-20 2009-12-24 Joh. Clouth Gmbh & Co. Kg Scraper blade holding device
US8337667B2 (en) * 2009-01-23 2012-12-25 Kadant, Inc. Systems and methods for providing improved dewatering performance in a papermaking machine
CN102016171B (en) * 2009-03-02 2017-06-09 卡丹特公司 Cleaning device for processing moving surface

Also Published As

Publication number Publication date
SI2627819T1 (en) 2015-03-31
ES2531150T3 (en) 2015-03-11
DE102011081927A1 (en) 2013-02-28
PL2627819T3 (en) 2015-05-29
US20140196860A1 (en) 2014-07-17
CA2845873C (en) 2018-11-27
CA2845873A1 (en) 2013-03-07
US8974638B2 (en) 2015-03-10
WO2013029989A1 (en) 2013-03-07
EP2627819A1 (en) 2013-08-21

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