EP1719559A1 - Support de racle - Google Patents

Support de racle Download PDF

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Publication number
EP1719559A1
EP1719559A1 EP06112050A EP06112050A EP1719559A1 EP 1719559 A1 EP1719559 A1 EP 1719559A1 EP 06112050 A EP06112050 A EP 06112050A EP 06112050 A EP06112050 A EP 06112050A EP 1719559 A1 EP1719559 A1 EP 1719559A1
Authority
EP
European Patent Office
Prior art keywords
application
doctor bed
running surface
medium
fibrous web
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.)
Withdrawn
Application number
EP06112050A
Other languages
German (de)
English (en)
Inventor
Christoph Henninger
Horst Kaipf
Bernhard Fuchs
Martin Schaubmaier
Michael Heitzinger
Rüdiger Keinberger
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to DE202006020478U priority Critical patent/DE202006020478U1/de
Publication of EP1719559A1 publication Critical patent/EP1719559A1/fr
Priority to FI20080152U priority patent/FI8065U1/fi
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/044—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for holding the blades
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper

Definitions

  • the invention relates to a doctor bed formed as a profile strip with a continuous groove in the axial direction for receiving a rotary metering rod which can be pressed against a running surface and dosed on the running surface applied liquid to pasty medium and / or equalized,
  • the running surface in direct Order of the medium is one side of a paper, cardboard or other fibrous web and for indirect application is the surface of a transfer element, which transfers the application medium to the fibrous web
  • doctor bed of a metering, doctoring or equalizing unit is already known from various documents.
  • the doctor bar is held in a doctor bed of rubber-elastic material. But other homogeneous materials of the doctor bed, such as polyethylene and polyurethane are known.
  • the doctor bed has on its rear side facing away from the metering rod a pressing element (pressure hose) for pressing against the running surface.
  • a pressing element pressure hose
  • the thickness of the metered film on the running surface can be adjusted and varied via the pressure in the pressure hose.
  • the doctor bed contains flushing channels into which a rinsing or lubricating fluid, eg. As water is introduced.
  • a rinsing or lubricating fluid eg. As water is introduced.
  • the invention is therefore based on the object to provide an improved with respect to the friction conditions doctor bed or an improved material.
  • the invention provides materials or material combinations which have a significantly lower coefficient of friction than the materials used hitherto.
  • first solution is a material consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a solid at room temperature or liquid wax of animal, vegetable, mineral or synthetic origin
  • second solution a material consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a solid at room temperature or liquid fat of animal origin
  • third solution a material consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a natural or synthetic oil proposed.
  • UHMW-PE ultra high molecular weight polyethylene
  • the production process for example doctor beds requires a stress-free production of the plastic block, which can be achieved for example by appropriate Abkühlkurven. Oils, liquid waxes and liquid fats tend to accumulate locally at room temperature compared to solid waxes and fats during compaction (at 220 bar) and at a press temperature of 250 ° C. A stepwise compression with specially different temperature levels prevents the removal of the liquid. A homogeneous incorporation of the slip additives in finely dispersed form takes place in the melt.
  • the claim 10 specifies the use of material combinations according to the invention consisting of polyethylene with proportions by weight of waxes or fats or oils, in addition to the already described doctor blade of any design and size for the production of so-called Rakelabstreifraun (such is the arrangement forth in the post-published DE 10 2004 028 754 described) and also application nozzles and deck boundary elements (such an element is in the post-published DE 10 2004 028 755 described) can be used in an applicator.
  • the material combinations described can also be used for support bodies for the application nozzles and metering or doctor units. However, the application for doctor beds is considered preferable.
  • doctor blade bed must be made of the combination of materials according to the invention, but it may be useful if this particular material in the form of a sectionally inserted and extending in the axial direction insert part, as in the post-published DE 10 2004 024 079 specified, is manufactured. This insert is then frictionless with respect to the rest (normal material eg rubber-elastic material or PU or PE).
  • FIG. 1 shows a metering unit 1, which can also be used as a doctor blade, or as a doctor blade.
  • Egalisiertechnik 1 can be designated. It is used for dosing, doctoring off or equalizing a previously applied to a running surface application medium and has an inventive doctor bed 2 and a metering rod 3 as a metering, doctoring or leveling on.
  • the metering rod 3 is rotatably received in an axially extending groove 4, which is adapted to the shape of the metering rod, or has a rotary drive 5. The more firmly the metering rod 3 is received in the groove 4, the higher must normally be the drive power.
  • a pressure element 7 With a pressure element 7, the doctor bed 2 including the doctor blade 3 against a running surface 8, which is a direct application of a web side of a fibrous web and indirect application, the surface of a transfer element which emits the application medium 9 to the fibrous web, pressed while the thickness d determined the applied medium.
  • a pressure element 7 is usually a pressure hose on the adjustable internal pressure, the contact force F is set.
  • the doctor bed 2 is inventively made of a combination of materials consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a solid or liquid at room temperature wax of animal, vegetable, mineral or synthetic origin, in particular consisting from long-chain fatty alcohols and fatty acids or carnauba wax and paraffin.
  • the doctor bed 2 is made of a combination of materials consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a solid at room temperature or liquid fat of animal origin, such as stearins.
  • the doctor bed 2 is made of a material combination consisting of a homogeneous mixture of 70 to 99.8% polyethylene and 0.2 to 30% by weight of a natural or synthetic oil, which also with thickeners up to 40% by weight can be offset, manufactured.
  • the chosen material combinations ensure due to the low friction coefficient better friction conditions than before, so that either the previous drive power can be miniert or an additional contact element 10 in the doctor bed 2 - can be accommodated in its upper part 2.1 in a groove 11, whereby the metering rod 3 by this additional Pressing on the one hand is better stored and on the other hand, a better tightness against penetrating application medium 9 is achieved. This would normally only be possible with increased drive power of the metering rod 3, but this is compensated by application of the proposed material.
  • the additional pressing element 10 is formed as a pressure hose, the. If the pressure hose is pressurized with air, the upper part 2.1 presses against the metering rod 3 and the advantages mentioned above are achieved.
  • FIG. 2 shows a further example of application of the material according to the invention, ie the material combination.
  • an applicator device 13 in which an applicator nozzle 15 is placed on a hollow cylindrical support body 14 here.
  • the application nozzle 15 consists of two nozzle lips 15.1 and 15.2, which between them a metering gap 15.3 for applying the application medium 9 on the running in the direction L surface 8.
  • Both the application nozzle 15, and the support body 14 are made of the combination of materials according to the invention and thereby guarantee a long service life.
  • FIG. 3 shows a further example of application of the material according to the invention, ie the material combination. It is again a dosing unit 1 with doctor bed 2 and stored therein, rotary squeegee 3.
  • the squeegee bed 2 is not completely made of the material combination according to the invention, but as the perspective view shows, the material combination W k in the form of only partially used and insert member 16 extending in the axial direction.
  • This insert member 16 may be distributed centrally, or in the outer regions or in multiple numbers over the length of the doctor bed 2, and be in relation to the rest of the material W ü (ie normal material such as rubber-elastic material or PU or PE) has the advantageous properties described (eg, is less friction).
  • FIG. 4 shows that the doctor bed 2 of a dosing unit 1, consisting or as described in FIG. 3, at least partially consisting of the material combination W k according to the invention, may have a different shape than that shown in FIGS. 1 and 3. It can be seen that the doctor bed 2 with the low-friction material has a relatively small cross-section with respect to the metering rod 3 and is removably inserted in a larger holder 17. It is also conceivable that the holder 17 is made of the material combination W k .

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
EP06112050A 2005-05-02 2006-03-31 Support de racle Withdrawn EP1719559A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE202006020478U DE202006020478U1 (de) 2005-05-02 2006-03-31 Rakelbett
FI20080152U FI8065U1 (fi) 2005-05-02 2008-05-08 Kaapimen runko

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005020848A DE102005020848A1 (de) 2005-05-02 2005-05-02 Rakelbett

Publications (1)

Publication Number Publication Date
EP1719559A1 true EP1719559A1 (fr) 2006-11-08

Family

ID=36449660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06112050A Withdrawn EP1719559A1 (fr) 2005-05-02 2006-03-31 Support de racle

Country Status (4)

Country Link
US (1) US20060243201A1 (fr)
EP (1) EP1719559A1 (fr)
AT (1) AT10513U1 (fr)
DE (2) DE102005020848A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024079A1 (de) * 2004-05-14 2005-12-08 Voith Paper Patent Gmbh Rakelbett
CN104582862A (zh) * 2012-06-11 2015-04-29 Btgipi有限公司 用于计量装置的插入件和保持架
CN113522662B (zh) * 2021-06-11 2023-12-05 张安娜 一种智慧社区相关led晶片贴片工件涂蜡处理装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022955A1 (de) 1980-06-19 1981-12-24 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum regeln der auftragsstaerke bei beschichten laufender materialbahnen
EP0190520A2 (fr) * 1984-12-04 1986-08-13 Societe Nouvelle Rockall France S.A. Connexion électrique pour circuits électroniques
DE102004024079A1 (de) 2004-05-14 2005-12-08 Voith Paper Patent Gmbh Rakelbett
DE102004028754A1 (de) 2004-06-16 2006-01-05 Voith Paper Patent Gmbh Rakelbett
DE102004028755A1 (de) 2004-06-16 2006-01-12 Voith Paper Patent Gmbh Auftragsvorrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143995A (en) * 1975-05-15 1979-03-13 Dropsa S.P.A. Single drive motor device particularly to supply fluid conveyance tandem line systems
US4357249A (en) * 1980-09-11 1982-11-02 Arguto, Inc. Self-lubricating bearing and the like, and method of making same
US4508050A (en) * 1983-12-22 1985-04-02 Tittmann Frederick R Doctor apparatus for coating machine
JPS63176289A (ja) * 1987-01-14 1988-07-20 日立エレベ−タサ−ビス株式会社 マンコンベアの安全装置
DE4309002A1 (de) * 1993-03-20 1994-09-22 Voith Gmbh J M Dosiereinrichtung zur Beschichtung laufender Bahnen, vorzugsweise aus Papier oder Karton
DK0851908T3 (da) * 1995-06-07 2003-08-25 Lee County Mosquito Control Di Smøremiddelsammensætning og fremgangsmåde
DE29510486U1 (de) * 1995-06-30 1995-08-17 Voith Sulzer Papiermasch Gmbh Rollrakel-Baugruppe
US6019846A (en) * 1997-12-16 2000-02-01 Voith Sulzer Paper Technology North America, Inc. Coater rod bed
DE19827712B4 (de) * 1998-06-22 2008-12-11 Voith Patent Gmbh Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn
DE19934441A1 (de) * 1999-07-22 2001-01-25 Voith Paper Patent Gmbh Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE10141514A1 (de) * 2000-08-25 2002-08-08 Fuji Photo Film Co Ltd Stabbeschichtungsverfahren und -vorrichtung
US6572269B2 (en) * 2000-11-30 2003-06-03 Nsk Ltd. Bearing apparatus
US6815008B2 (en) * 2001-09-13 2004-11-09 Fuji Photo Film Co., Ltd. Bar coating apparatus and bar coating method
US6854351B2 (en) * 2001-11-14 2005-02-15 Nsk Ltd. Linear motion device, rolling device and separator for rolling device
FI119390B (fi) * 2003-12-22 2008-10-31 Metso Paper Inc Sauvakehto filmi-, päällystys- tai patosauvaa varten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022955A1 (de) 1980-06-19 1981-12-24 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum regeln der auftragsstaerke bei beschichten laufender materialbahnen
EP0190520A2 (fr) * 1984-12-04 1986-08-13 Societe Nouvelle Rockall France S.A. Connexion électrique pour circuits électroniques
DE102004024079A1 (de) 2004-05-14 2005-12-08 Voith Paper Patent Gmbh Rakelbett
DE102004028754A1 (de) 2004-06-16 2006-01-05 Voith Paper Patent Gmbh Rakelbett
DE102004028755A1 (de) 2004-06-16 2006-01-12 Voith Paper Patent Gmbh Auftragsvorrichtung

Also Published As

Publication number Publication date
AT10513U1 (de) 2009-05-15
US20060243201A1 (en) 2006-11-02
DE102005020848A1 (de) 2006-11-09
DE202006020478U1 (de) 2008-08-14

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