EP1584745B1 - Dispositif de calibrage - Google Patents

Dispositif de calibrage Download PDF

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Publication number
EP1584745B1
EP1584745B1 EP05004643A EP05004643A EP1584745B1 EP 1584745 B1 EP1584745 B1 EP 1584745B1 EP 05004643 A EP05004643 A EP 05004643A EP 05004643 A EP05004643 A EP 05004643A EP 1584745 B1 EP1584745 B1 EP 1584745B1
Authority
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.)
Revoked
Application number
EP05004643A
Other languages
German (de)
English (en)
Other versions
EP1584745A1 (fr
Inventor
Peter Mau
Markus Müller
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34684119&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1584745(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joh Clouth GmbH and Co KG filed Critical Joh Clouth GmbH and Co KG
Priority to PL05004643T priority Critical patent/PL1584745T3/pl
Publication of EP1584745A1 publication Critical patent/EP1584745A1/fr
Application granted granted Critical
Publication of EP1584745B1 publication Critical patent/EP1584745B1/fr
Revoked 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
    • 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 of a blade on the circumference of a roll or a cylinder, in particular a paper machine, a printing press, a calender or the like, adjacent blade of a scraper.
  • the invention also relates to a method for adjusting a contact pressure of a blade on the circumference of a roll or a cylinder, in particular a paper machine, a printing press, a calender or the like.
  • Such a device and such a method are known for example from WO 01 20077 A1.
  • Scrapers have the task to clean the surface of a roller, or a cylinder.
  • such a scraper device causes the paper web guided over the respective 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 intended location, for example to get into a collecting chute.
  • This task must ensure the scraper with 100 percent certainty, otherwise it can lead to significant disruptions in paper production, and possibly even damage to the paper machine.
  • the blade in the scraper must always rest evenly over the entire length of the scraper on the lateral surface of the respective roller-the plane of the blade extends at a shallow angle to the tangent of the contact surface line on the roller.
  • the invention is therefore based on the problem of providing the person skilled in the art with a means and / or a method so that he can set the contact pressure of the blades in a reproducible manner.
  • a calibration device of the type mentioned above in that it is provided with a holding blade, an attached sensor holder and a pressure sensor, wherein the holding blade, the sensor holder and the pressure sensor are positioned so that the position of the pressure sensor on the circumference Roller or cylinder corresponds to the location of the blade.
  • a calibration device is universally applicable, i.
  • the calibration device can be used for blade holders of various designs.
  • a blade clamped in a blade holder is simulated and the pressure with which the sensor bears against the circumference of the roller or the cylinder is measured.
  • the pressure sensor is positioned exactly where the scraping edge of the blade comes to rest.
  • the blade holder is then adjusted so that the desired pressure values are achieved.
  • the settings are then saved so that they can be recalled after replacing the calibrator with the actual blade.
  • These stored values can be, 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 as the clamping end of the blade.
  • this clamping end has openings for receiving rivets, so that a secure hold in the blade holder is ensured.
  • the sensor holder is slotted on its side facing the holding blade.
  • this slot which according to the invention has a height corresponding to the thickness of the holding blade, the holding blade is inserted and screwed or riveted to the sensor holder.
  • Other types of attachment such as gluing, is also conceivable.
  • the holding blade In order to be able to measure the pressing force of the blade at several points along its length, the holding blade is designed to accommodate a plurality of sensor holders. Above all, this can be used to determine whether the blade is aligned axially parallel to the axis of the roller or the cylinder, which is the basic prerequisite for the same contact pressure over the entire length and a uniform wear. It can also be attached several holding blades in the blade holder.
  • the pressure sensor is attached to the side facing away from the holding blade of the sensor holder.
  • the sensor holder is constructed in the manner of a tactile finger and determines, independently of the adjacent sensor holders its associated contact pressure.
  • a preferred embodiment provides that the Sensor holder from the plane of the holding blade out and bent away from the roller or bent. This creates space for receiving the pressure sensor, which is located exactly where the scraping edge of the blade contacts the circumference of the roller.
  • the cranked or bent portion extends substantially or at least partially tangentially to the roller or to the cylinder. Since the roller or the cylinder has a relatively large diameter, the bent or bent portion of the sensor holder extends substantially parallel to the surface of the roller and can easily accommodate the sensor. Minor position inaccuracies of the sensor on the sensor holder do not affect the measurement accuracy.
  • an elastic pad is disposed between the pressure sensor and the roller surface. Dirt on the roller surface, which inevitably lead to pressure surges in the pressure sensor, passes over the sensor unscathed, since it is protected by the elastic pad.
  • the cushion according to the invention consists of plastic, in particular silicone. It has been shown that this material is particularly durable and the pressure forces distributed excellent on the pressure sensor.
  • the sensor holder is made Steel or a hard plastic.
  • the holding blade may also be made of steel, but a made of carbon fiber reinforced plastic holding blade is preferred because it is easier to handle. Thus, a several meters long holding blade for transport and / or storage can be rolled up easily.
  • FIG. 1 shows a generally designated 10 blade holder, which is fastened with its rail 12, for example, on the (not shown) frame of a roller. Of this roller, only the roller surface 14 is shown.
  • the rail 12 is connected to a pivot bearing 16 provided on which a support 18 is pivotally mounted.
  • This support 18 has two shoulders 20 and 22, under which inflatable tubes 24 and 26 are arranged, which in turn are supported on the rail 12. By setting different pressures in the hoses 24 and 26, the carrier 18 can be pivoted about the pivot bearing 16.
  • One end of the carrier 18 is formed as a receptacle 28 for a blade 30, the scraper edge 32 is seated on the roller surface 14. Since the receptacle 28 is well known, it will not be described in detail. Instead of the blade 30, which is drawn with a dashed line, is located in the receptacle 28 a generally designated 34 calibration device having a holding blade 36, a sensor holder 38 and a pressure sensor 40.
  • the holding blade 36 has a chucking end 42 which is formed as the chucking end of the blade 30. Therefore, the holding blade 36 can be fixed in the receptacle 28 of the blade holder 10 exactly like the blade 30.
  • FIG. 2 shows the sensor holder 38, whose end 44 facing the holding blade has a slot 46 whose height corresponds to the thickness of the holding blade 36.
  • the end 44 is provided with threaded holes 48, in which, as shown in Figure 1, grub screws 50 are screwed, with which the sensor holder 38 is attached to the holding blade 36.
  • the slot 46 is oriented to include an angle ⁇ of 27 ° with the tangent 52. This angle ⁇ would also include a blade 30 with the tangent 52.
  • the sensor holder 38 has a bent portion 54 which is substantially parallel to the tangent 52 or extends to the surface 14 of the roller.
  • On the surface 14 facing side 56 of the pressure sensor 40 is attached to which in turn an elastic pad 58 is attached.
  • the voltage applied to the roll surface 14 elastic pad 58 distributes the pressure acting on the pressure sensor 40 evenly over its surface.
  • the orthogonal 60 passing through the pressure sensor 40 and the pad 58 includes an angle ⁇ of 90 ° to the tangent 52.
  • the holding blade 36 is shown having openings 62, to which, for example, rivets can be attached, via which the holding blade 36 is held captive in the receptacle 28.
  • the contact pressure can be increased, which can be detected by the pressure sensor 40.
  • Different pressures can now be assigned to different pressures in the tubes 24 and 26 so that after the calibration device 34 has been replaced by a scraper blade 30, this contact pressure on the scraper edge 32 can be generated reproducibly.

Landscapes

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

Claims (18)

  1. Dispositif de calibrage (34) de la pression d'appui d'une lame (30) d'un dispositif racleur en contact avec la circonférence d'un rouleau ou d'un cylindre, en particulier d'une machine à papier, d'une machine d'imprimerie, d'une calandreuse ou similaire, caractérisé en ce que le dispositif de calibrage est équipé d'une lame de retenue (36), d'un support de capteur (38) fixé sur celle-ci et d'un capteur de pression (40), la lame de retenue (36), le support de capteur (38) et le capteur de pression (40) pouvant être positionnés de telle façon que la position du capteur de pression (40) sur la circonférence du rouleau ou du cylindre correspond au lieu d'appui de la lame (30).
  2. Dispositif de calibrage selon la revendication 1, caractérisé en ce que la lame de retenue (36) présente une extrémité de fixation (42) dont la conformation est identique à celle d'une extrémité de fixation de la lame (30).
  3. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le support de capteur (38) est fendu sur sa face tournée vers la lame de retenue (36).
  4. Dispositif de calibrage selon la revendication 3, caractérisé en ce que la hauteur de la fente (46) correspond à l'épaisseur de la lame de retenue (36).
  5. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que la lame de retenue (36) est conformée de façon à recevoir plusieurs supports de capteur (38).
  6. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le capteur de pression (40) est fixé sur la face du support de capteur (38) opposée à la lame de retenue (36).
  7. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le support de capteur (38) est coudé ou replié par rapport au plan de la lame de retenue (36).
  8. Dispositif de calibrage selon la revendication 7, caractérisé en ce que le segment coudé ou replié (54) s'étend sensiblement tangentiellement au rouleau ou au cylindre, au moins par sections.
  9. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le capteur de pression (40) est fixé sur la face (56) du support de capteur (38) tournée vers le rouleau ou le cylindre.
  10. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce qu'un coussin élastique (58) est disposé entre le capteur de pression (40) et la surface (14) du rouleau.
  11. Dispositif de calibrage selon la revendication 10, caractérisé en ce que le coussin (58) est en matière plastique, en particulier en silicone.
  12. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le capteur de pression (40) est un capteur de pression tactile, en particulier un élément piézoélectrique.
  13. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le support de capteur (38) est en acier ou en matière plastique.
  14. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que la lame de retenue (36) est en acier ou en matière plastique renforcée de fibres de carbone.
  15. Dispositif de calibrage selon l'une des revendications précédentes, caractérisé en ce que le support de capteur (38) peut être vissé dans n'importe quelles positions sur la lame de retenue (36).
  16. Procédé de réglage de la pression d'appui d'une lame (30) d'un dispositif racleur en contact avec la circonférence d'un rouleau ou d'un cylindre, en particulier d'une machine à papier, d'une machine d'imprimerie, d'une calandreuse ou similaire, caractérisé en ce que, au moyen d'un dispositif de calibrage (34), on simule une lame fixée dans un support de lame (10), on mesure la pression avec laquelle un capteur de pression (40) est en contact sur la circonférence du rouleau ou du cylindre, on ajuste le support de lame (10) de façon à obtenir les valeurs de pression voulues, on mémorise les réglages de façon à pouvoir les rappeler après avoir remplacé le dispositif de calibrage par la lame (30) proprement dite et on utilise ces valeurs mémorisées pour le réglage du support de lame (10).
  17. Procédé selon la revendication 16, caractérisé en ce que, pour ajuster le support de lame (10), on modifie des vis de réglage, des pressions de cylindres de réglage et/ou de flexibles gonflables, ou des poids.
  18. Procédé selon la revendication 16 ou la revendication 17, caractérisé en ce que le capteur de pression (40) est positionné exactement à l'endroit où le bord racleur de la lame (30) vient en contact.
EP05004643A 2004-04-08 2005-03-03 Dispositif de calibrage Revoked EP1584745B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05004643T PL1584745T3 (pl) 2004-04-08 2005-03-03 Urządzenie do wzorcowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018421 2004-04-08
DE102004018421A DE102004018421B3 (de) 2004-04-08 2004-04-08 Kalibriervorrichtung

Publications (2)

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

Family

ID=34684119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05004643A Revoked EP1584745B1 (fr) 2004-04-08 2005-03-03 Dispositif de calibrage

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001265A1 (de) 2008-04-18 2009-10-22 Voith Patent Gmbh Schabervorrichtung und Rakelvorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503922B1 (de) * 2006-11-23 2008-02-15 Bartelmuss Klaus Ing Einrichtung zur lösbaren befestigung eines halters für eine schaberklinge in einer papiererzeugungsanlage
WO2010099830A1 (fr) 2009-03-06 2010-09-10 Voith Patent Gmbh Raclette avec système de détection
FI122440B (fi) 2010-07-26 2012-01-31 Metso Paper Inc Järjestely, laitteisto ja menetelmä teräpaineen määrittämiseksi
DE102011051929B3 (de) 2011-07-19 2012-10-18 Gerhard Hertel Vorrichtung für einen Schaber und Schaberanordnung mit einer solchen Vorrichtung
DE102011081927A1 (de) * 2011-08-31 2013-02-28 Joh. Clouth Gmbh & Co. Kg Vorrichtung zum Halten von Rakeln
EP2789734A1 (fr) * 2013-04-09 2014-10-15 Valmet Technologies, Inc. Ensemble pour un dispositif de ligne de production de bande de fibre
CN106452176A (zh) * 2016-09-18 2017-02-22 燕山大学 一种基于振动发电智能变阻尼半主动吸振胶垫
GB2582635B (en) * 2019-03-28 2021-12-29 Archipelago Tech Group Ltd Device, method, and assembly for loading nozzles with fluid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108654B (fi) * 1999-04-15 2002-02-28 Metso Paper Inc Paperikoneen kaapimen kuormitusjärjestely
FI4290U1 (fi) * 1999-09-14 2000-01-19 Valmet Corp Paperikoneen kaavinyksikkö

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001265A1 (de) 2008-04-18 2009-10-22 Voith Patent Gmbh Schabervorrichtung und Rakelvorrichtung
EP2113608A2 (fr) 2008-04-18 2009-11-04 Voith Patent GmbH Dispositif de racloir et dispositif de raclage
EP2113608A3 (fr) * 2008-04-18 2009-12-09 Voith Patent GmbH Dispositif de racloir et dispositif de raclage

Also Published As

Publication number Publication date
ES2279462T3 (es) 2007-08-16
DE502005000240D1 (de) 2007-02-01
EP1584745A1 (fr) 2005-10-12
DE102004018421B3 (de) 2005-07-21
US20050223513A1 (en) 2005-10-13
ATE348915T1 (de) 2007-01-15
PL1584745T3 (pl) 2007-02-28

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