EP2627819A1 - Device for retaining scrapers - Google Patents

Device for retaining scrapers

Info

Publication number
EP2627819A1
EP2627819A1 EP12746348.7A EP12746348A EP2627819A1 EP 2627819 A1 EP2627819 A1 EP 2627819A1 EP 12746348 A EP12746348 A EP 12746348A EP 2627819 A1 EP2627819 A1 EP 2627819A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
bottom plate
plate
bearing axis
bearing
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
EP12746348.7A
Other languages
German (de)
French (fr)
Other versions
EP2627819B1 (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

Links

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 get into a collecting chute.
  • This task must be guaranteed with 100% certainty by the scraper blade, as otherwise it can lead to considerable disruptions in the production of paper and possibly even damage to the paper machine.
  • 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.
  • a cover plate is pivotally attached to this base plate, so that the doctor blade can be lifted from the roll surface or placed and pressed onto it (EP 1 567 715 B1).
  • WO 2004/042 143 A1 discloses a doctor blade holding device, in which the bottom plate has a bearing tube around which the cover plate is pivotably 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.
  • the object of the invention is to provide a device for holding doctor blades, which can be mounted and cleaned more easily and is also well protected against contamination.
  • the bearing axis Due to the configuration 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 is ensured that during disassembly of the device, the bearing axis remains on one and the recording 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. It must be e.g. no loose axle in receiving eyes on the bottom plate and cover plate are inserted after these receiving eyes were brought into alignment.
  • 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 assembly 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 piping guide chamber, which is located in particular 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 formed 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 a simple 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. Extends the recording sections, then the bearing axis must be inserted only in the first two or three sections of the recording and is then guided by them so that it engages without aids in the subsequent sections. As a result, a cross-change possibility is created in a simple manner.
  • Figure 1 is a perspective view of the holding device according to the invention.
  • FIG. 2 shows a section II-II according to FIG. 1;
  • FIG. 1 shows a retaining device, generally designated by 10, having a bottom plate 12 and a cover plate 14.
  • Holding fingers 16 (FIG. 2) are provided on the cover plate 14, with which a doctor 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 has 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 or at least shielded.
  • the base plate 12 is formed by a profiled bent plate 38 and has a central substantially ⁇ -shaped design.
  • a bearing shaft 40 is formed, in which a tube 42 is inserted for fastening the cover plate 14 and, for. secured 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 ,

Landscapes

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

Abstract

The invention relates to a device for retaining doctor blades, comprising a base plate and a cover plate, said plates being pivotably connected together by means of a pivot bearing and the doctor blade is fixed to the cover plate. An expandable tube is arranged respectively on both sides of the pivot bearing between the base plate and the cover plate, said pivot bearing consisting of a radially supported bearing axis and a receiving element for the bearing axis, said bearing axis being fixed either to the base plate or the cover plate and the receiving element being fixed to either the cover plate or the base plate.

Description

    Vorrichtung zum Halten von SchaberklingenDevice for holding scraper blades
  • 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 get into a collecting chute. This task must be guaranteed with 100% certainty by the scraper blade, as otherwise it can lead to considerable disruptions in the production of paper and possibly even damage to the paper machine. 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. A cover plate is pivotally attached to this base plate, so that the doctor blade can be lifted from the roll surface or placed and pressed onto it (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. WO 2004/042 143 A1 discloses a doctor blade holding device, in which the bottom plate has a bearing tube around which the cover plate is pivotably 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 WO 2009/076128 A1 also a holding device for doctor blades is 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. The AT 503 922 A4 also shows such a holding device.
  • Ausgehend von der EP 1 567 715 B1 liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zum Halten von Schaberklingen bereitzustellen, die einfacher montiert und gereinigt werden kann und außerdem gut gegen Verschmutzung geschützt ist.Based on EP 1 567 715 B1, the object of the invention is to provide a device for holding doctor blades, which can be mounted and cleaned more easily and is also well protected against contamination.
  • Diese Aufgabe wird mit einer Vorrichtung gelöst, die die Merkmale des Anspruchs 1 aufweist.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 configuration 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 is ensured that during disassembly of the device, the bearing axis remains on one and the recording 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. It must be e.g. no loose axle in receiving eyes on the bottom plate and cover plate are inserted after these receiving eyes were brought into alignment. 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 assembly 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 insbesondere 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 piping guide chamber, which is located in particular 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 formed 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 a simple 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. Extends the recording sections, then the bearing axis must be inserted only in the first two or three sections of the recording and is then guided by them so that it engages without aids in the subsequent 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:In the drawing show:
  • Figur 1 eine perspektivische Ansicht der erfindungsgemäßen Haltevorrichtung;Figure 1 is a perspective view of the holding device according to the invention;
  • Figur 2 einen Schnitt II – II gemäß Figur 1;FIG. 2 shows a section II-II according to FIG. 1;
  • Figur 3 die Deckplatte im Schnitt; undFigure 3, the cover plate in section; and
  • Figur 4 die Bodenplatte im Schnitt.Figure 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 oder zumindest abgeschirmt.FIG. 1 shows a retaining device, generally designated by 10, having a bottom plate 12 and a cover plate 14. Holding fingers 16 (FIG. 2) are provided on the cover plate 14, with which a doctor 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 has a piping 34 which is inserted into a provided on the cover plate 14 Kederführungskammer 36. In this way, the gap 28 is sealed or at least shielded.
  • In der Figur 4 ist außerdem erkennbar, dass die Bodenplatte 12 von einem profilierten Biegeblech 38 gebildet wird und mittig im wesentlichen Ω-förmig 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 addition, it can be seen in FIG. 4 that the base plate 12 is formed by a profiled bent plate 38 and has a central substantially Ω-shaped design. As a result, a bearing shaft 40 is formed, in which a tube 42 is inserted for fastening the cover plate 14 and, for. secured 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.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. Vorrichtung zum Halten von Schaberklingen (18) mit einer Bodenplatte (12) und einer Deckplatte (14), wobei die Bodenplatte (12) und die Deckplatte (14) über ein Schwenklager (46) schwenkbar miteinander verbunden sind und die Schaberklinge (18) an der Deckplatte (14) befestigt ist, wobei beidseits des Schwenklagers (46) jeweils ein expandierbarer Druckschlauch (50, 52) zwischen der Bodenplatte (12) und der Deckplatte (14) vorgesehen ist, wobei das Schwenklager (46) von einer radial abgestützten Lagerachse (40) und einer Aufnahme (44) für die Lagerachse (40) gebildet wird, und die Lagerachse (40) entweder an der Bodenplatte (12) oder der Deckplatte (14) und die Aufnahme (44) entweder an der Deckplatte (14) oder der Bodenplatte (12) befestigt oder ausgebildet ist, dadurch gekennzeichnet, dass an der Deckplatte (14) eine Kederführungskammer (36) vorgesehen ist, die sich insbesondere an der der Schaberklinge (18) gegenüber liegenden Seite befindet, dass an der Bodenplatte (12) an der der Kederführungskammer (36) zugewandten Seite eine flexible Dichtung (32) befestigt ist, deren freies Ende mit einem Keder (34) versehen ist, der in die Kederführungskammer (36) eingreift, dass die Deckplatte (14) an der Einspannstelle für die Schaberklinge (18) ein in Richtung der Bodenplatte (12) zeigendes Abweisblech (24) aufweist, und, dass die Dichtung (32) und das Abweisblech (24) den in Längsrichtung der Vorrichtung verlaufenden Spalt zwischen der Bodenplatte (12) und der Deckplatte (14) abdichten.Device for holding doctor blades (18) with a bottom plate (12) and a cover plate (14), wherein the bottom plate (12) and the cover plate (14) are pivotally connected to each other via a pivot bearing (46) and the doctor blade (18) the cover plate (14) is fixed, wherein on both sides of the pivot bearing (46) in each case an expandable pressure hose (50, 52) between the bottom plate (12) and the cover plate (14) is provided, wherein the pivot bearing (46) from a radially supported bearing axis (40) and a receptacle (44) for the bearing axis (40) is formed, and the bearing axis (40) either on the bottom plate (12) or the cover plate (14) and the receptacle (44) either on the cover plate (14) or the bottom plate (12) is fixed or formed, characterized in that on the cover plate (14) a Kederführungskammer (36) is provided, which is in particular on the scraper blade (18) opposite side, that on the bottom plate (12 ) at the d he Kederführungskammer (36) facing side a flexible seal (32) is fixed, whose free end is provided with a piping (34) which engages in the Kederführungskammer (36) that the cover plate (14) at the clamping point for the doctor blade ( 18) has a deflector plate (24) pointing in the direction of the bottom plate (12), and in that the seal (32) and the deflector plate (24) extend the gap extending in the longitudinal direction of the device between the bottom plate (12) and the cover plate (14). caulk.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Bodenplatte (12) wannenartig mit zwei Seitenwänden (26, 30) ausgebildet ist.Apparatus according to claim 1, characterized in that the bottom plate (12) like a trough with two side walls (26, 30) is formed.
  3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bodenplatte (12) einen im wesentlichen W-förmigen Querschnitt aufweist.Device according to one of the preceding claims, characterized in that the bottom plate (12) has a substantially W-shaped cross-section.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bodenplatte (12) von einem profilierten Biegeblech (38) gebildet wird, in welches die Lagerachse (40) durch Umformung integriert ist.Device according to one of the preceding claims, characterized in that the bottom plate (12) by a profiled bending plate (38) is formed, in which the bearing axis (40) is integrated by forming.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lagerachse (40) im Wesentlichen Ω-förmig ausgebildet ist und insbesondere durch ein Rohr (42) oder einen Stab versteift ist.Device according to one of the preceding claims, characterized in that the bearing axis (40) is formed substantially Ω-shaped and in particular stiffened by a pipe (42) or a rod.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufnahme (44) in Form eines in Richtung der Bodenplatte (12) offenen C ausgebildet ist.Device according to one of the preceding claims, characterized in that the receptacle (44) in the form of a in the direction of the bottom plate (12) open C is formed.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufnahme (44) sich über die gesamte Länge der Deckplatte (14) oder abschnittsweise über deren Länge erstreckt.Device according to one of the preceding claims, characterized in that the receptacle (44) extends over the entire length of the cover plate (14) or in sections over 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 true EP2627819A1 (en) 2013-08-21
EP2627819B1 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
CN105874122B (en) * 2013-11-06 2019-10-18 卡丹特公司 Doctor blade frame system
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

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* 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
WO2009076128A1 (en) * 2007-12-06 2009-06-18 Kadant Web Systems, Inc. Doctor blade holder
DE102008029091A1 (en) 2008-06-20 2009-12-24 Joh. Clouth Gmbh & Co. Kg Scraper blade holding device
EP2389481B1 (en) * 2009-01-23 2018-01-24 Kadant Inc. System for providing improved dewatering performance in a papermarking machine
WO2010101889A1 (en) * 2009-03-02 2010-09-10 Kadant Inc. Systems and methods for cleaning and conditioning a moving surface using cleaning apparatus with plate elements for mounting to doctor blade holders

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Title
See references of WO2013029989A1 *

Also Published As

Publication number Publication date
DE102011081927A1 (en) 2013-02-28
CA2845873C (en) 2018-11-27
CA2845873A1 (en) 2013-03-07
US8974638B2 (en) 2015-03-10
WO2013029989A1 (en) 2013-03-07
US20140196860A1 (en) 2014-07-17
EP2627819B1 (en) 2014-12-17
ES2531150T3 (en) 2015-03-11
SI2627819T1 (en) 2015-03-31
PL2627819T3 (en) 2015-05-29

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