EP1584745A1 - Calibration device - Google Patents

Calibration device Download PDF

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Publication number
EP1584745A1
EP1584745A1 EP05004643A EP05004643A EP1584745A1 EP 1584745 A1 EP1584745 A1 EP 1584745A1 EP 05004643 A EP05004643 A EP 05004643A EP 05004643 A EP05004643 A EP 05004643A EP 1584745 A1 EP1584745 A1 EP 1584745A1
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EP
European Patent Office
Prior art keywords
blade
sensor
calibration device
holder
pressure sensor
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
EP05004643A
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German (de)
French (fr)
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EP1584745B1 (en
Inventor
Peter Mau
Markus Müller
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Joh Clouth GmbH and Co KG
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Joh Clouth GmbH and Co KG
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Application filed by Joh Clouth GmbH and Co KG filed Critical Joh Clouth GmbH and Co KG
Priority to PL05004643T priority Critical patent/PL1584745T3/en
Publication of EP1584745A1 publication Critical patent/EP1584745A1/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1036—Clamping and adjusting devices

Definitions

  • the invention relates to a calibration device for the Contact pressure on the circumference of a roller or a Cylinder, in particular a paper machine, a Printing machine, a calender or the like, adjacent blade of a scraper.
  • the invention also relates to a method for setting a Contact pressure on the circumference of a roller or a Cylinder, in particular a paper machine, a Printing press, a calender or the like Blade.
  • Scrapers have the task of the surface a roller, or a cylinder to clean.
  • the invention is therefore based on the object, the Professional a means and / or a procedure to hand give it, so that it reduces the contact pressure of the blades can adjust reproducibly.
  • a Such calibration device is universally applicable, i.e. The calibration device can be used for blade holders be used of various designs.
  • the calibration device is a in simulated a blade holder clamped blade and it The pressure is measured with which the sensor on the circumference the roller or the cylinder rests. It is the Pressure sensor positioned exactly where the scraping edge of the Blade comes to rest. The blade holder then becomes like this set that achieves the desired pressure values become. The settings are then saved, so that after replacing the calibration device against the actual blade can be retrieved again.
  • These stored values can, for example, positions of Adjusting screws, pressures of adjusting cylinders or of be inflatable tubes with which the blade holder is delivered.
  • the Holding blade has a clamping end, which is formed is like the chucking end of the blade. In particular, owns this chucking openings for receiving rivets, so that a secure hold in the blade holder is guaranteed.
  • the Sensor holder on its side facing the holding blade slotted.
  • a Height corresponding to the thickness of the holding blade the holding blade is inserted and with the sensor holder screwed or riveted.
  • Other types of fastening such as for example gluing, is also conceivable.
  • the holding blade for recording formed a plurality of sensor holder. Above all, this can be determined whether the blade axis parallel to the axis of the Roller or cylinder is aligned, what the Basic requirement for equal contact pressure over the full length and even wear. It You can also attach several holding blades in the blade holder become.
  • the pressure sensor is at the holding blade attached remote side of the sensor holder.
  • the Sensor holder is constructed in the manner of a tactile finger and determined, regardless of the adjacent sensor holders the associated contact pressure.
  • a preferred embodiment provides that the Sensor holder out of the plane of the holding blade and away bent or bent from the roller. This will Space created to accommodate the pressure sensor, which itself located exactly where the scraping edge of the blade touches the circumference of the roller.
  • the bent or bent section runs in Essentially or at least partially tangential to the roller or to the cylinder. Since the roller or the Cylinder has a relatively large diameter, the cranked or bent portion extends of the sensor holder substantially parallel to the surface the roller and can easily pick up the sensor. Minor position inaccuracies of the sensor at Sensor holders do not affect the measurement accuracy.
  • the cushion according to the invention consists of plastic, especially made of silicone. It has been shown that this Material is particularly durable and the compressive forces excellently distributed to the pressure sensor.
  • the sensor holder is made Steel or a hard plastic. It can the Holding blade also made of steel, but is a Made of carbon fiber reinforced plastic Holding blade preferred because it is easier to handle. So can be a several meters long holding blade for transport and / or simply rolled up for storage.
  • FIG. 1 shows a total of 10 Blade holder, with its rail 12, for example, on (not shown) frame of a roller is attached. Of this roller is only the roller surface 14th shown.
  • the rail 12 is connected to a pivot bearing 16 provided on which a carrier 18 pivotally attached is.
  • This carrier 18 has two shoulders 20 and 22, below which inflatable tubes 24 and 26 are arranged are, in turn, are supported on the rail 12. By setting different pressures in the hoses 24 and 26, the carrier 18 about the pivot bearing 16th be pivoted.
  • One end of the carrier 18 is as a receptacle 28 for a blade 30 formed, the scraper edge 32 on the Roll surface 14 is seated. Since the receptacle 28 general is known, it is not described in detail. Instead of Blade 30, which is drawn with dashed line, is in the receptacle 28 a total of 34 designated calibration device comprising a holding blade 36, a sensor holder 38 and a pressure sensor 40 has.
  • the holding blade 36 has a clamping end 42, which is so is formed, as the clamping end of the blade 30. Therefore can the holding blade 36 exactly the same as the blade 30 in the receptacle 28 of the blade holder 10 are attached.
  • FIG. 2 shows the sensor holder 38, of which the Holding blade 36 facing the end 44 a slot 46th whose height of the thickness of the holding blade 36th equivalent.
  • the end 44 is threaded 48, into which, as shown in FIG. 1, Grub screws 50 are screwed, with which the Sensor holder 38 is attached to the holding blade 36.
  • the Slit 46 is oriented to coincide with the tangent 52 an angle ⁇ of 27 °. This angle ⁇ would also include a blade 30 with the tangent 52.
  • the sensor holder 38 has a bent portion 54 which is essentially parallel to the tangent 52 or extends to the surface 14 of the roller.
  • the Pressure sensor 40 attached to which in turn a elastic pad 58 is attached. That at the Roll surface 14 adjacent elastic pads 58 distributes the pressure acting on the pressure sensor 40 pressure evenly over its surface.
  • the through the pressure sensor 40 and the pad 58 going orthogonal 60 includes one Angle ⁇ of 90 ° to the tangent 52 a.
  • the holding blade 36 is shown, the Openings 62, which, for example, rivets can be attached, via which the holding blade 36th is held captive in the receptacle 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Paper (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measuring Fluid Pressure (AREA)
  • Coating Apparatus (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Stereophonic System (AREA)

Abstract

The assembly includes a mounting strip (36) with a sensor holder (38) for the pressure sensor (40) fastened to it. These components are positioned such that the pressure sensor is located in correspondence with the resting location of the scraper blade (30) against the cylinder : The mounting strip end corresponds in shape with the clamped end of the blade. At the side of the sensor holder facing the mounting strip, it is slotted. Slot height corresponds with the mounting strip, which is constructed to hold several sensor holders. The pressure sensor is fastened on the side of the sensor holder facing away from the mounting strip. The sensor holder is bent out from the plane of the strip, this section running tangentially to the cylinder. The sensor is fastened on the side facing the cylinder. A resilient cushion (58) intervenes between sensor and roller. It is plastic, especially a silicone. The pressure sensor is a tactile pressure sensor, especially a piezoelectric element. The sensor holder is steel or plastic. The mounting strip is steel or carbon-reinforced plastic. The sensor holder can be screwed onto it, at various locations. An independent claim is included for the corresponding method of adjusting the pressure of the scraper on the cylinder circumference.

Description

Die Erfindung betrifft eine Kalibriervorrichtung für den Anpressdruck einer am Umfang einer Walze oder eines Zylinders, insbesondere einer Papiermaschine, einer Druckmaschine, eines Kalanders oder dergleichen, anliegenden Klinge einer Schabvorrichtung. Die Erfindung betrifft auch ein Verfahren zum Einstellen eines Anpressdrucks einer am Umfang einer Walze oder eines Zylinders, insbesondere einer Papiermaschine, einer Druckmaschine, eines Kalanders oder dergleichen anliegenden Klinge.The invention relates to a calibration device for the Contact pressure on the circumference of a roller or a Cylinder, in particular a paper machine, a Printing machine, a calender or the like, adjacent blade of a scraper. The invention also relates to a method for setting a Contact pressure on the circumference of a roller or a Cylinder, in particular a paper machine, a Printing press, a calender or the like Blade.

Schabvorrichtungen besitzen die Aufgabe, die Oberfläche einer Walze, beziehungsweise eines Zylinders, zu reinigen. Scrapers have the task of the surface a roller, or a cylinder to clean.

Im Falle einer Papiermaschine bewirkt eine derartige Schabvorrichtung, 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 vorhergesehenen Stelle verlässt, um zum Beispiel in einen Auffangschacht zu gelangen. Diese Aufgabe muss die Schabvorrichtung mit hundertprozentiger Sicherheit gewährleisten, da es sonst zu erheblichen Störungen bei der Papierherstellung, und unter Umständen sogar zu einer Beschädigung der Papiermaschine kommen kann. Aus diesem Grunde muss die Klinge in der Schabvorrichtung stets gleichmäßig über die ganze Länge des Schabers an der Mantelfläche der betreffenden Walze anliegen- Die Ebene der Klinge verläuft dabei unter einem flachen Winkel zu der Tangente der Berührungsmantellinie an der Walze.In the case of a paper machine causes such Scraper that is over the relevant roller of the Paper machine guided paper web in case of a Web break does not wind up on the roller, but the Leave roll at the intended location to go to Example to get into a collecting shaft. This task the scraper must be one hundred percent secure ensure otherwise there will be significant disruption to the Papermaking, and possibly even one Damage to the paper machine can come. For this Basically, the blade must always be in the scraper evenly over the entire length of the scraper on the Surface of the respective roller abut- The plane of the Blade runs at a shallow angle to the Tangent of the contact surface line on the roller.

Um eine zuverlässige Schabwirkung zu erzielen, muss sichergestellt sein, dass die Klinge mit einem bestimmten Druck auf der Walzenoberfläche anliegt. Jedoch darf dieser Druck nicht zu hoch sein, da sich die Klinge dann zu sehr abnutzt und vorzeitig ausgetauscht werden muss und die Gefahr besteht, dass die Walzenoberfläche beschädigt wird muss der Anpressdruck über die gesamte Länge der Walze möglichst gleichmäßig sein, da es ansonsten zu ungleichmäßigen Abnutzungen an der Klinge Kommt. Da geeignete Messvorrichtungen nicht vorhanden sind, muss auf die Erfahrung des Einrichters zurückgegriffen werden, was aber dazu führt, dass keine reproduzierbaren Einstellwerte erzielbar sind.To achieve a reliable scraping effect, must be sure that the blade with a specific Pressure on the roll surface is applied. However, this may Pressure should not be too high, as the blade is then too much worn and replaced prematurely and the There is a risk that the roll surface will be damaged must be the contact pressure over the entire length of the roller be as even as possible otherwise it too Uneven wear on the blade. There appropriate measuring devices are not available, must be on the experience of the setter is resorted to what but this results in no reproducible set values can be achieved.

Aus der DE 600 00 021 T2 ist eine Anordnung zum Einstellen der Belastung eines Papiermaschinenschabers bekannt. Diese Anordnung weist einen Lagerbock und einen schwenkbar am Lagerbock gelagerten Halter für den Schaber auf. Der Halter kann durch Aufblasen von Schläuchen, die zwischen Lagerbock und Halter vorgesehen sind, verschwenkt und der Schaber dadurch an die Walzenoberfläche angepresst werden. Eine Messung des Anpressdruckes ist aber nicht möglich. Es muss ebenfalls auf Erfahrungswerte zurück gegriffen werden.From DE 600 00 021 T2 an arrangement for adjusting the load of a paper machine scraper known. These Arrangement has a bearing block and a pivoting on Bearing mounted holder for the scraper. The holder can by inflating tubes between bearing block and holders are provided, pivoted and the scraper thereby be pressed against the roll surface. A Measuring the contact pressure is not possible. It must also be based on experience.

Der Erfindung liegt daher die Aufgabe zugrunde, dem Fachmann ein Mittel und/oder ein Verfahren zur Hand zu geben, so dass er den Anpressdruck der Klingen reproduzierbar einstellen kann.The invention is therefore based on the object, the Professional a means and / or a procedure to hand give it, so that it reduces the contact pressure of the blades can adjust reproducibly.

Diese Aufgabe wird mit einer Kalibriervorrichtung der eingangs genannten Art dadurch gelöst, dass diese mit einer Halteklinge, einem daran befestigten Sensorhalter und einem Drucksensor versehen ist, wobei die Halteklinge, der Sensorhalter und der Drucksensor so positioniert sind, dass die Lage des Drucksensors am Umfang der Walze oder des Zylinders dem Anlageort der Klinge entspricht. Eine derartige Kalibriervorrichtung ist universell verwendbar, d.h. die Kalibriervorrichtung kann für Klingenhalter unterschiedlichster Bauart verwendet werden.This object is achieved with a calibration device of the type mentioned solved in that these with a Holding blade, an attached sensor holder and a Pressure sensor is provided, wherein the holding blade, the Sensor holder and the pressure sensor are positioned so that the position of the pressure sensor on the circumference of the roller or Cylinder corresponds to the location of the blade. A Such calibration device is universally applicable, i.e. The calibration device can be used for blade holders be used of various designs.

Mit der erfindungsgemäßen Kalibriervorrichtung wird eine in einen Klingenhalter eingespannte Klinge simuliert und es wird der Druck gemessen, mit welcher der Sensor am Umfang der Walze oder des Zylinders anliegt. Dabei wird der Drucksensor genau dort positioniert, wo die Schabkante der Klinge zu liegen kommt. Der Klingenhalter wird daraufhin so eingestellt, dass die gewünschten Druckwerte erzielt werden. Die Einstellungen werden dann gespeichert, so dass sie nach dem Austausch der Kalibriervorrichtung gegen die tatsächliche Klinge wieder abgerufen werden können. Diese abgespeicherten Werte können zum Beispiel Positionen von Einstellschrauben, Drücke von Stellzylindern oder von aufblasbaren Schläuchen sein, mit welchen der Klingenhalter zugestellt wird.With the calibration device according to the invention is a in simulated a blade holder clamped blade and it The pressure is measured with which the sensor on the circumference the roller or the cylinder rests. It is the Pressure sensor positioned exactly where the scraping edge of the Blade comes to rest. The blade holder then becomes like this set that achieves the desired pressure values become. The settings are then saved, so that after replacing the calibration device against the actual blade can be retrieved again. These stored values can, for example, positions of Adjusting screws, pressures of adjusting cylinders or of be inflatable tubes with which the blade holder is delivered.

Bei einer Weiterbildung ist vorgesehen, dass die Halteklinge ein Einspannende aufweist, das so ausgebildet ist, wie das Einspannende der Klinge. Insbesondere besitzt dieses Einspannende Öffnungen zur Aufnahme von Nieten, so dass ein sicherer Halt im Klingenhalter gewährleistet ist.In a further development it is provided that the Holding blade has a clamping end, which is formed is like the chucking end of the blade. In particular, owns this chucking openings for receiving rivets, so that a secure hold in the blade holder is guaranteed.

Bei einem Ausführungsbeispiel ist vorgesehen, dass der Sensorhalter an seiner der Halteklinge zugewandten Seite geschlitzt ist. In diesen Schlitz, der erfindungsgemäß eine Höhe aufweist, die der Dicke der Halteklinge entspricht, wird die Halteklinge eingeschoben und mit dem Sensorhalter verschraubt oder vernietet. Andere Befestigungsarten, wie zum Beispiel ein Einkleben, ist ebenfalls denkbar.In one embodiment, it is provided that the Sensor holder on its side facing the holding blade slotted. In this slot, according to the invention a Height corresponding to the thickness of the holding blade, the holding blade is inserted and with the sensor holder screwed or riveted. Other types of fastening, such as for example gluing, is also conceivable.

Um die Andruckkraft der Klinge an mehreren Stellen ihrer Länge messen zu können, ist die Halteklinge zur Aufnahme mehrerer Sensorhalter ausgebildet. Vor allem kann hierdurch ermittelt werden, ob die Klinge achsparallel zur Achse der Walze oder des Zylinders ausgerichtet ist, was die Grundvoraussetzung für einen gleichen Anpressdruck über die gesamte Länge und eine gleichmäßige Abnutzung ist. Es können auch mehrere Halteklingen im Klingenhalter befestigt werden.To the pressing force of the blade at several points of her To measure the length is the holding blade for recording formed a plurality of sensor holder. Above all, this can be determined whether the blade axis parallel to the axis of the Roller or cylinder is aligned, what the Basic requirement for equal contact pressure over the full length and even wear. It You can also attach several holding blades in the blade holder become.

Mit Vorzug ist der Drucksensor an der der Halteklinge abgewandten Seite des Sensorhalters befestigt. Der Sensorhalter ist nach Art eines Tastfingers aufgebaut und ermittelt, unabhängig von den benachbarten Sensorhaltern den ihm zugehörigen Anpressdruck.With preference the pressure sensor is at the holding blade attached remote side of the sensor holder. Of the Sensor holder is constructed in the manner of a tactile finger and determined, regardless of the adjacent sensor holders the associated contact pressure.

Eine bevorzugte Ausführungsform sieht vor, dass der Sensorhalter aus der Ebene der Halteklinge heraus und weg von der Walze abgekröpft oder abgebogen ist. Hierdurch wird Platz geschaffen zur Aufnahme des Drucksensors, der sich genau an der Stelle befindet, wo die Schabkante der Klinge den Umfang der Walze berührt.A preferred embodiment provides that the Sensor holder out of the plane of the holding blade and away bent or bent from the roller. This will Space created to accommodate the pressure sensor, which itself located exactly where the scraping edge of the blade touches the circumference of the roller.

Dabei verläuft der abgekröpfte oder abgebogene Abschnitt im Wesentlichen oder zumindest teilweise tangential zur Walze oder zum Zylinder. Da die Walze beziehungsweise der Zylinder einen relativ großen Durchmesser aufweist, erstreckt sich der abgekröpfte oder abgebogene Abschnitt des Sensorhalters im Wesentlichen parallel zur Oberfläche der Walze und kann problemlos den Sensor aufnehmen. Geringfügige Positionsungenauigkeiten des Sensors am Sensorhalter wirken sich nicht auf die Messgenauigkeit aus.The bent or bent section runs in Essentially or at least partially tangential to the roller or to the cylinder. Since the roller or the Cylinder has a relatively large diameter, the cranked or bent portion extends of the sensor holder substantially parallel to the surface the roller and can easily pick up the sensor. Minor position inaccuracies of the sensor at Sensor holders do not affect the measurement accuracy.

Um den Sensor vor Druckstößen zu schützen, ist zwischen dem Drucksensor und der Walzenoberfläche ein elastisches Kissen angeordnet. Verschmutzungen auf der Walzenoberfläche, die unweigerlich zu Druckstößen im Drucksensor führen, überfährt der Sensor unbeschadet, da er durch das elastische Kissen geschützt ist.To protect the sensor from pressure surges is between the Pressure sensor and the roller surface an elastic cushion arranged. Dirt on the roller surface, the inevitably lead to pressure surges in the pressure sensor, the sensor passes over unscathed, as it passes through the Elastic pillow is protected.

Dabei besteht das Kissen erfindungsgemäß aus Kunststoff, insbesondere aus Silikon. Es hat sich gezeigt, dass dieses Material besonders langlebig ist und die Druckkräfte ausgezeichnet auf den Drucksensor verteilt.The cushion according to the invention consists of plastic, especially made of silicone. It has been shown that this Material is particularly durable and the compressive forces excellently distributed to the pressure sensor.

Sehr gute Messergebnisse wurden mit einem taktilen Drucksensor, nämlich einem Piezoelement als Drucksensor erzielt. Diese Drucksensoren sind äußerst stabil und liefern über einen langen Zeitraum reproduzierbare Werte.Very good results were measured with a tactile Pressure sensor, namely a piezoelectric element as a pressure sensor achieved. These pressure sensors are extremely stable and deliver reproducible values over a long period of time.

Bei einem Ausführungsbeispiel besteht der Sensorhalter aus Stahl oder aus einem harten Kunststoff. Dabei kann die Halteklinge ebenfalls aus Stahl bestehen, jedoch wird eine aus mit Kohlefaser verstärktem Kunststoff bestehende Halteklinge bevorzugt, da diese leichter handhabbar ist. So kann eine mehrere Meter lange Halteklinge zum Transport und/oder zur Lagerung einfach aufgerollt werden.In one embodiment, the sensor holder is made Steel or a hard plastic. It can the Holding blade also made of steel, but is a Made of carbon fiber reinforced plastic Holding blade preferred because it is easier to handle. So can be a several meters long holding blade for transport and / or simply rolled up for storage.

Die oben genannte Aufgabe wird aber auch durch ein Verfahren gelöst, welches die Merkmale des Anspruches 16 aufweist.The above task is also by a Solved method, which has the features of claim 16 having.

Weitere Vorteile, Merkmale und Einzelheiten ergeben sich aus den Ansprüchen sowie aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und in den Ansprüchen erwähnten Merkmale jeweils für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details arise from the claims and from the following Description, in reference to the drawing a particularly preferred embodiment in detail is described. It can in the drawing presented as well as in the description and in the Claims mentioned in each case for themselves or in any combination essential to the invention.

In der Zeichnung zeigen:

Figur 1
eine Seitenansicht der erfindungsgemäßen Kalibriervorrichtung;
Figur 2
eine Seitenansicht des Sensorhalters; und
Figur 3
eine Draufsicht auf eine Halteklinge.
In the drawing show:
FIG. 1
a side view of the calibration device according to the invention;
FIG. 2
a side view of the sensor holder; and
FIG. 3
a plan view of a holding blade.

Die Figur 1 zeigt einen insgesamt mit 10 bezeichneten Klingenhalter, der mit seiner Schiene 12 zum Beispiel am (nicht dargestellten) Gestell einer Walze befestigt ist. Von dieser Walze ist lediglich die Walzenoberfläche 14 dargestellt. Die Schiene 12 ist mit einem Schwenklager 16 versehen, an welchem ein Träger 18 schwenkbar befestigt ist. Dieser Träger 18 besitzt zwei Schultern 20 und 22, unter denen aufblasbare Schläuche 24 und 26 angeordnet sind, die sich ihrerseits an der Schiene 12 abstützen. Durch Einstellen unterschiedlicher Drücke in den Schläuchen 24 und 26 kann der Träger 18 um das Schwenklager 16 verschwenkt werden.FIG. 1 shows a total of 10 Blade holder, with its rail 12, for example, on (not shown) frame of a roller is attached. Of this roller is only the roller surface 14th shown. The rail 12 is connected to a pivot bearing 16 provided on which a carrier 18 pivotally attached is. This carrier 18 has two shoulders 20 and 22, below which inflatable tubes 24 and 26 are arranged are, in turn, are supported on the rail 12. By setting different pressures in the hoses 24 and 26, the carrier 18 about the pivot bearing 16th be pivoted.

Ein Ende des Trägers 18 ist als Aufnahme 28 für eine Klinge 30 ausgebildet, deren Schaberkante 32 auf der Walzenoberfläche 14 aufsitzt. Da die Aufnahme 28 allgemein bekannt ist, wird sie nicht näher beschrieben. Anstelle der Klinge 30, die mit gestrichelter Linie gezeichnet ist, befindet sich in der Aufnahme 28 eine insgesamt mit 34 bezeichnete Kalibriervorrichtung, die eine Halteklinge 36, einen Sensorhalter 38 und einen Drucksensor 40 aufweist. Die Halteklinge 36 besitzt ein Einspannende 42, welches so ausgebildet ist, wie das Einspannende der Klinge 30. Daher kann die Halteklinge 36 genau gleich wie die Klinge 30 in der Aufnahme 28 des Klingenhalters 10 befestigt werden.One end of the carrier 18 is as a receptacle 28 for a blade 30 formed, the scraper edge 32 on the Roll surface 14 is seated. Since the receptacle 28 general is known, it is not described in detail. Instead of Blade 30, which is drawn with dashed line, is in the receptacle 28 a total of 34 designated calibration device comprising a holding blade 36, a sensor holder 38 and a pressure sensor 40 has. The holding blade 36 has a clamping end 42, which is so is formed, as the clamping end of the blade 30. Therefore can the holding blade 36 exactly the same as the blade 30 in the receptacle 28 of the blade holder 10 are attached.

Die Figur 2 zeigt den Sensorhalter 38, dessen der Halteklinge 36 zugewandtes Ende 44 einen Schlitz 46 aufweist, dessen Höhe der Dicke der Halteklinge 36 entspricht. Außerdem ist das Ende 44 mit Gewindebohrungen 48 versehen, in welche, wie in Figur 1 dargestellt, Madenschrauben 50 einschraubbar sind, mit denen der Sensorhalter 38 an der Halteklinge 36 befestigt wird. Der Schlitz 46 ist so ausgerichtet, dass er mit der Tangente 52 einen winkel α von 27° einschließt. Diesen Winkel α würde auch eine Klinge 30 mit der Tangente 52 einschließen.FIG. 2 shows the sensor holder 38, of which the Holding blade 36 facing the end 44 a slot 46th whose height of the thickness of the holding blade 36th equivalent. In addition, the end 44 is threaded 48, into which, as shown in FIG. 1, Grub screws 50 are screwed, with which the Sensor holder 38 is attached to the holding blade 36. Of the Slit 46 is oriented to coincide with the tangent 52 an angle α of 27 °. This angle α would also include a blade 30 with the tangent 52.

Der Sensorhalter 38 weist einen abgekröpften Abschnitt 54 auf, der sich im Wesentlichen parallel zur Tangente 52 beziehungsweise zur Oberfläche 14 der Walze erstreckt. An der der Oberfläche 14 zugewandten Seite 56 ist der Drucksensor 40 angebracht, an welchem seinerseits ein elastisches Kissen 58 befestigt ist. Das an der Walzenoberfläche 14 anliegende elastische Kissen 58 verteilt den auf den Drucksensor 40 einwirkenden Druck gleichmäßig über dessen Fläche. Die durch den Drucksensor 40 und das Kissen 58 gehende Orthogonale 60 schließt einen Winkel β von 90° zur Tangente 52 ein.The sensor holder 38 has a bent portion 54 which is essentially parallel to the tangent 52 or extends to the surface 14 of the roller. At the surface 14 facing side 56 is the Pressure sensor 40 attached to which in turn a elastic pad 58 is attached. That at the Roll surface 14 adjacent elastic pads 58 distributes the pressure acting on the pressure sensor 40 pressure evenly over its surface. The through the pressure sensor 40 and the pad 58 going orthogonal 60 includes one Angle β of 90 ° to the tangent 52 a.

In Figur 3 ist die Halteklinge 36 dargestellt, die Öffnungen 62 aufweist, an denen zum Beispiel Nieten befestigt werden können, über welche die Halteklinge 36 verliersicher in der Aufnahme 28 gehalten wird.In Figure 3, the holding blade 36 is shown, the Openings 62, which, for example, rivets can be attached, via which the holding blade 36th is held captive in the receptacle 28.

Durch Erhöhung des Drucks im rechten Schlauch 26 kann die Anpresskraft vergrößert werden, was mit dem Drucksensor 40 erfassbar ist. Es können nun unterschiedlichen Drücken in den Schläuchen 24 und 26 unterschiedliche Anpressdrücke zugeordnet werden, so dass nach dem Austausch der Kalibriervorrichtung 34 durch eine Schaberklinge 30 dieser Anpressdruck an der Schaberkante 32 reproduzierbar erzeugt werden kann.By increasing the pressure in the right hose 26, the Pressing force can be increased, what with the pressure sensor 40th is detectable. There can now be different pressures in the hoses 24 and 26 different contact pressures be assigned, so after replacing the Calibration device 34 by a doctor blade 30 this Contact pressure on the scraper edge 32 reproducibly generated can be.

Claims (18)

Kalibriervorrichtung (34) für den Anpressdruck einer am Umfang einer Walze oder eines Zylinders, insbesondere einer Papiermaschine, einer Druckmaschine, eines Kalanders oder dergleichen anliegenden Klinge (30) einer Schabvorrichtung, mit einer Halteklinge (36), einem daran befestigten Sensorhalter (38) und einem Drucksensor (40), wobei die Halteklinge (36), der Sensorhalter (38) und der Drucksensor (40) so positioniert sind, dass die Lage des Drucksensors (40) am Umfang der Walze oder des Zylinders dem Anlageort der Klinge (30) entspricht.Calibration device (34) for the contact pressure of a on the circumference of a roller or a cylinder, in particular a paper machine, a Printing machine, a calender or the like adjacent blade (30) of a scraper, with a holding blade (36) attached thereto Sensor holder (38) and a pressure sensor (40), wherein the holding blade (36), the sensor holder (38) and the Pressure sensor (40) are positioned so that the location the pressure sensor (40) on the circumference of the roller or the Cylinder corresponds to the location of the blade (30). Kalibriervorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Halteklinge (36) ein Einspannende (42) aufweist, das so ausgebildet ist, wie ein Einspannende der Klinge (30).Calibration device according to claim 1, characterized in that the holding blade (36) has a clamping end (42) which is formed as a clamping end of the blade (30). Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensorhalter (38) an seiner der Halteklinge (36) zugewandten Seite geschlitzt ist.Calibration device according to one of the preceding claims, characterized in that the sensor holder (38) is slotted on its side facing the holding blade (36) side. Kalibriervorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Höhe des Schlitzes (46) der Dicke der Halteklinge (36) entspricht.Calibration device according to claim 3, characterized in that the height of the slot (46) corresponds to the thickness of the holding blade (36). Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Halteklinge (36) zur Aufnahme mehrerer Sensorhalter (38) ausgebildet ist.Calibration device according to one of the preceding claims, characterized in that the holding blade (36) for receiving a plurality of sensor holder (38) is formed. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Drucksensor (40) an der der Halteklinge (36) abgewandten Seite des Sensorhalters (38) befestigt ist.Calibration device according to one of the preceding claims, characterized in that the pressure sensor (40) on the holding blade (36) facing away from the sensor holder (38) is attached. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensorhalter (38) aus der Ebene der Halteklinge (36) heraus abgekröpft oder abgebogen ist.Calibration device according to one of the preceding claims, characterized in that the sensor holder (38) is bent or bent out of the plane of the holding blade (36). Kalibriervorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der abgekröpfte oder abgebogene Abschnitt (54) im Wesentlichen zumindest abschnittsweise tangential zur Walze oder zum Zylinder verläuft.Calibration device according to claim 7, characterized in that the bent or bent portion (54) extends substantially at least partially tangential to the roller or to the cylinder. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der der Walze oder dem Zylinder zugewandten Seite (56) des Sensorhalters (58) der Drucksensor (40) befestigt ist.Calibration device according to one of the preceding claims, characterized in that on the side facing the roller or the cylinder (56) of the sensor holder (58) of the pressure sensor (40) is attached. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Drucksensor (40) und der Walzenoberfläche (14) ein elastisches Kissen (58) angeordnet ist.Calibration device according to one of the preceding claims, characterized in that between the pressure sensor (40) and the roller surface (14) an elastic pad (58) is arranged. Kalibriervorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass das Kissen (58) aus Kunststoff, insbesondere aus Silikon, besteht.Calibration device according to claim 10, characterized in that the cushion (58) made of plastic, in particular of silicone. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Drucksensor (40) ein taktiler Drucksensor, insbesondere ein Piezoelement ist.Calibration device according to one of the preceding claims, characterized in that the pressure sensor (40) is a tactile pressure sensor, in particular a piezoelectric element. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensorhalter (38) aus Stahl oder Kunststoff besteht. Calibration device according to one of the preceding claims, characterized in that the sensor holder (38) consists of steel or plastic. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Halteklinge (36) aus Stahl oder aus mit Kohlefaser verstärktem Kunststoff besteht.Calibration device according to one of the preceding claims, characterized in that the holding blade (36) made of steel or carbon fiber reinforced plastic. Kalibriervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensorhalter (38) an beliebigen Positionen an die Halteklinge (36) anschraubbar ist.Calibration device according to one of the preceding claims, characterized in that the sensor holder (38) at any position on the holding blade (36) can be screwed. Verfahren zum Einstellen eines Anpressdrucks einer am Umfang einer Walze oder eines Zylinders, insbesondere einer Papiermaschine, einer Druckmaschine, eines Kalanders oder dergleichen anliegenden Klinge (30) einer Schabvorrichtung, dadurch gekennzeichnet, dass mit einer Kalibriervorrichtung (34) eine in einen Klingenhalter (10) eingespannte Klinge simuliert wird, dass der Druck gemessen wird, mit welcher ein Drucksensor (40) am Umfang der Walze oder des Zylinders anliegt, dass der Klingenhalter (10) so eingestellt wird, dass die gewünschten Druckwerte erzielt werden, dass die Einstellungen gespeichert werden, so dass sie nach dem Austausch der Kalibriervorrichtung gegen die tatsächliche Klinge (30) wieder abgerufen werden können und dass diese abgespeicherten Werte zum Einstellen des Klingenhalters (10) verwendet werden.Method for adjusting a contact pressure of a blade (30) of a scraping device resting against the circumference of a roll or a cylinder, in particular a paper machine, a printing press, a calender or the like, characterized in that a blade holder (10) is connected to a calibrating device (34). clamped blade is simulated to measure the pressure with which a pressure sensor (40) rests on the circumference of the roller or cylinder, that the blade holder (10) is adjusted so that the desired pressure values are obtained that the settings are stored, so that they can be retrieved after replacing the calibration device against the actual blade (30) and that these stored values are used to adjust the blade holder (10). Verfahren nach Anspruch 16, dadurch gekennzeichnet, dass zum Einstellen des Klingenhalters (10) Einstellschrauben, Drücke von Stellzylindern und/oder von aufblasbaren Schläuchen oder Gewichte verändert werden. A method according to claim 16, characterized in that for adjusting the blade holder (10) adjusting screws, pressures of actuating cylinders and / or inflatable tubes or weights are changed. Verfahren nach Anspruch 16 oder 17, dadurch gekennzeichnet, dass der Drucksensor (40) genau dort positioniert wird, wo die Schabkante der Klinge (30) zu liegen kommt.A method according to claim 16 or 17, characterized in that the pressure sensor (40) is positioned exactly where the scraping edge of the blade (30) comes to rest.
EP05004643A 2004-04-08 2005-03-03 Calibration device Revoked EP1584745B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05004643T PL1584745T3 (en) 2004-04-08 2005-03-03 Calibration device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018421 2004-04-08
DE102004018421A DE102004018421B3 (en) 2004-04-08 2004-04-08 Scraper pressure calibration unit located at periphery of roller or cylinder of paper making-, printing- or calendering machine comprises mounting strip, holder and sensor

Publications (2)

Publication Number Publication Date
EP1584745A1 true EP1584745A1 (en) 2005-10-12
EP1584745B1 EP1584745B1 (en) 2006-12-20

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EP05004643A Revoked EP1584745B1 (en) 2004-04-08 2005-03-03 Calibration device

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US (1) US20050223513A1 (en)
EP (1) EP1584745B1 (en)
AT (1) ATE348915T1 (en)
DE (2) DE102004018421B3 (en)
ES (1) ES2279462T3 (en)
PL (1) PL1584745T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102008001265A1 (en) 2008-04-18 2009-10-22 Voith Patent Gmbh Scraper device and squeegee device
EP2403992B1 (en) 2009-03-06 2015-11-11 Voith Patent GmbH Doctor blade with sensing system
FI122440B (en) 2010-07-26 2012-01-31 Metso Paper Inc Arrangements, devices and method for determining cutting pressure
DE102011051929B3 (en) 2011-07-19 2012-10-18 Gerhard Hertel Device for a scraper and scraper arrangement with such a device
DE102011081927A1 (en) * 2011-08-31 2013-02-28 Joh. Clouth Gmbh & Co. Kg Device for holding doctor blades
EP2789734A1 (en) * 2013-04-09 2014-10-15 Valmet Technologies, Inc. Assembly for a device of a fiber web production line
CN106452176A (en) * 2016-09-18 2017-02-22 燕山大学 Smart damping-varying semi-active vibration absorption rubber mat based on vibration generation
GB2582635B (en) * 2019-03-28 2021-12-29 Archipelago Tech Group Ltd Device, method, and assembly for loading nozzles with fluid

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EP1045067A1 (en) * 1999-04-15 2000-10-18 Valmet Corporation Loading arrangement in a paper machine doctor
WO2001020077A1 (en) * 1999-09-14 2001-03-22 Metso Paper, Inc. Doctor unit in a paper machine

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
EP1045067A1 (en) * 1999-04-15 2000-10-18 Valmet Corporation Loading arrangement in a paper machine doctor
WO2001020077A1 (en) * 1999-09-14 2001-03-22 Metso Paper, Inc. Doctor unit in a paper machine

Also Published As

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DE502005000240D1 (en) 2007-02-01
US20050223513A1 (en) 2005-10-13
DE102004018421B3 (en) 2005-07-21
PL1584745T3 (en) 2007-02-28
ATE348915T1 (en) 2007-01-15
ES2279462T3 (en) 2007-08-16
EP1584745B1 (en) 2006-12-20

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