EP1211053A2 - Tragbalken - Google Patents
Tragbalken Download PDFInfo
- Publication number
- EP1211053A2 EP1211053A2 EP01128122A EP01128122A EP1211053A2 EP 1211053 A2 EP1211053 A2 EP 1211053A2 EP 01128122 A EP01128122 A EP 01128122A EP 01128122 A EP01128122 A EP 01128122A EP 1211053 A2 EP1211053 A2 EP 1211053A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber
- support beam
- composite material
- fiber composite
- elongated
- 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
Links
Images
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
- B05C11/04—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
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
- D21G3/005—Doctor knifes
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
Definitions
- the invention relates to a support beam for an elongated functional unit, in particular a paper and / or coating machine, consisting of an elongated, hollow body of round or polygonal cross section from one Fiber composite material, which is manufactured in the winding process.
- Generic supporting beams are already known and are used for storage and support of functional units, such as scraper devices, with which in paper machines the outer surfaces of drying cylinders, felts or guide rolls to be kept clean or to keep the paper or cardboard web from the To remove the outer surface.
- the supporting beam is described in DE 41 41 133.
- the supporting beam is there made of a fiber composite material and is in the form of an elongated hollow body with a substantially polygonal cross section.
- Such beams are also from DE 196 49 559.8 or DE 297 01 176.6 known for coating units as functional units.
- DE 197 13 195 also discloses a support body made of fiber composite material CFRP (carbon fiber reinforced plastic) is made.
- CFRP carbon fiber reinforced plastic
- This support body is made from a bundle of preferably tubular support elements, the individual Pipes can be manufactured in a winding process using heat and pressure are. It is also disclosed that by appropriate choice of the main fiber orientation, that should run approximately parallel to the longitudinal axis of a profile element, minimizes thermal expansion in the longitudinal direction and thus deflection becomes.
- the inventor has recognized that by increasing the natural frequency of the supporting beam, the susceptibility to vibrations can be surprisingly minimized. This is achieved when a certain part of the fibers of a high-strength fiber composite material, namely proportion A from 70% to 90%, in the longitudinal direction (ie axially parallel) and another part of the fibers, namely proportion B from 10% to 30%, approximately in the circumferential direction be aligned during the manufacture of the supporting beam. This is also achieved if such a fiber composite material is selected, the modulus of elasticity of which is equal to / greater than 100 GPa and whose coefficient of thermal expansion in the longitudinal direction is equal to / less than 2 x 10 -6 K -1 .
- the total proportion of fibers in the composite material is approximately 55%.
- An expedient solution of the invention can consist in that the fiber portion A to the longitudinal axis of the support beam at an angle of up to 15 ° in the plus-minus direction and the fiber portion B aligned at an angle between 75 ° and 90 ° is.
- one sectional arrangement of the fibers consists in that a part A in the longitudinal direction, a part B in the circumferential direction and a further part C and / or D in the above mentioned angles is aligned.
- the invention ie the support beam according to the invention, can be used very advantageously as a so-called scraper beam within a machine for producing a material web.
- the support beam according to the invention can be used particularly advantageously for coating machines, ie coaters and film presses. Particularly in the case of the latter devices, which the applicant also sells under the names Speedcoater TM, Speedsizer TM or Speedflow TM, low-vibration supporting beams have a particularly positive effect on the application result of a material web to be coated.
- a coating machine is selected as an example of the embodiment of the invention.
- the associated Figure 1 shows a coating machine with a schematic representation support beam according to the invention.
- the coating machine shown in Figure 1 consists of stands 1 with bearing levers 1a on the operator and drive side of the machine.
- the coating machine can On or also an offline machine of a machine for producing a material web, in particular fibrous web made of paper or cardboard.
- a respective roller 2 or 2 ' is each also machine-wide, thus assigned longitudinal support beams 4 and 4 '. Support both support beams 4, 4 ' down on the chair parts 1 with the bearing levers 1a.
- the supporting beams as shown here in the example, only schematically hold, on their upper side 4a as the functional units 6 and 6 ', for example a squeegee device in the form of a blade.
- this squeegee device is used to scrape off excess liquid or pasty medium applied to one or both sides of the material web 3 with an application unit, in order to achieve a specific, desired coating weight or is only used to even out the applied medium.
- the position number 6 or 6 ' also for a rotating doctor rod, a doctor bar and / or for said application unit (such as a nozzle application unit or distributed over the length of the support beam, or over the length of the associated roller arranged individual application nozzles) apply.
- the hydraulic cylinders 5 and 5 ' which are also shown, enable pivoting the support beam in the event of non-treatment of the material web or for service i.e. Maintenance purposes of the functional unit (e.g. when changing the doctor blade, cleaning the Order aggregates etc.).
- the support beam is hollow, so that on the one hand this very is kept light and on the other hand also the corresponding for a coating machine Color distribution tube can be arranged in a space-saving manner in the cavity.
- the directions Z and Y are indicated with corresponding arrows. It can be seen that the Z direction in the longitudinal, i.e. H. Axial direction of the respective support beam and the Y direction is perpendicular to the Z axis. In this Z direction occurs normally, ie without fiber orientation according to the invention and with a modulus of elasticity from> 100 GPa the lowest natural frequency.
- a material for the supporting beams is a steel beam instead of the previously used one high-strength fiber composite material selected, resulting in a 5 times lower weight is achieved.
- the combination of very high rigidity, very low weight and less Thermal expansion in the axial direction can be carried out by such a supporting beam in the Realize the winding process.
- composite materials are fiberglass (GRP), carbon fiber (CFRP) or aramid fibers can also be used.
- the first natural frequency was most critical, because it was below 5 Hz.
- the first natural frequency could be raised to 5.4 Hz.
- the higher eigenmodes (e.g. 3rd and 4th) have also been significantly increased. This means an increase in the natural bending frequency of the machine-wide support body (doctor bar in the selected example).
Landscapes
- Paper (AREA)
- Coating Apparatus (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Das wird außerdem erreicht, wenn ein solcher Faserverbundwerkstoff gewählt wird, dessen E-Modul gleich/größer 100 GPa und dessen Wärmeausdehnungskoeffizient in Längsrichtung gleich/kleiner 2 x 10 -6 K-1 beträgt.
Besonders vorteilhaft lässt sich aber der erfindungsgemäße Tragbalken für Streichmaschinen, d. h. Coater und Filmpressen einsetzen. Gerade bei letztgenannten Vorrichtungen, die von der Anmelderin auch unter dem Namen Speedcoater™, Speedsizer™ oder Speedflow™ vertrieben werden, wirken sich schwingungsarme Tragbalken besonders positiv auf das Auftragsergebnis einer zu beschichtenden Materialbahn aus.
Diese Rakeleinrichtung dient bei einer Streichmaschine zum Abrakeln von mit einem Auftragsaggregat auf eine oder beide Seiten der Materialbahn 3 aufgebrachten, überschüssig aufgetragenen flüssigen oder pastösen Medium zur Erreichung eines bestimmten, gewünschten Strichgewichtes oder dient nur der Vergleichmäßigung des aufgebrachten Mediums.
Claims (5)
- Tragbalken (4, 4') für eine langgestreckte Funktionseinheit (6), insbesondere einer Papier- und/oder Streichmaschine, bestehend aus einem langgestreckten, hohlförmigen Körper von rundem oder polygonalem Querschnitt aus einem Faserverbundwerkstoff, der im Wickelverfahren hergestellt ist, dadurch gekennzeichnet, dass
als Faserverbundwerkstoff ein solcher vorgesehen ist, der ein E-Modul von = >100 GPa, und in Richtung seiner Längserstreckung eine Wärmeausdehnung von = < 2 x 10-6 1/K sowie eine solche Faserorientierung aufweist, bei der ein Faseranteil A von 70 % bis 90 % annähernd achsparallel und ein Faseranteil B von 10 % bis 30 % annähernd in Umfangsrichtung ausgerichtet ist. - Tragbalken nach Anspruch 1, dadurch gekennzeichnet, dass
der Faseranteil A in einem Winkel von bis zu 15 ° von der Achse der Längserstreckung ausgelenkt ist. - Tragbalken nach Anspruch 1, dadurch gekennzeichnet, dass
der Faseranteil B in einem Winkel zwischen 75° und 90° von der Achse der Längserstreckung ausgelenkt ist. - Tragbalken nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass
als Faserverbundwerkstoff Glasfaserkunststoff (GFK), Kohlefaserkunststoff (CFK) oder Aramid Verwendung findet. - Vorrichtung zum direkten oder indirekten, ein- oder beidseitigen Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn (3), insbesondere Faserstoffbahn aus Papier oder Karton, wobei sich wenigstens ein Auftragsaggregat und /oder eine Rakeleinrichtung (6,6') auf einem Tragbalken (4,4') abstützt, dadurch gekennzeichnet, dass
der Tragbalken (4,4') aus einem Faserverbundwerkstoff gemäß der Ansprüche 1 bis 4 gefertigt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10059281A DE10059281A1 (de) | 2000-11-29 | 2000-11-29 | Tragbalken |
| DE10059281 | 2000-11-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1211053A2 true EP1211053A2 (de) | 2002-06-05 |
| EP1211053A3 EP1211053A3 (de) | 2006-05-31 |
| EP1211053B1 EP1211053B1 (de) | 2009-09-30 |
Family
ID=7665119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01128122A Expired - Lifetime EP1211053B1 (de) | 2000-11-29 | 2001-11-27 | Tragbalken |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6672028B2 (de) |
| EP (1) | EP1211053B1 (de) |
| AT (1) | ATE444155T1 (de) |
| DE (2) | DE10059281A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006013130A1 (de) * | 2004-07-30 | 2006-02-09 | Voith Patent Gmbh | Tragelement |
| CN104368503A (zh) * | 2014-12-01 | 2015-02-25 | 常熟市方塔涂料化工有限公司 | 涂料刮刀 |
| EP2811070B1 (de) | 2013-06-06 | 2016-04-20 | Valmet Technologies, Inc. | Auftragungseinheit einer beschichtungs- oder dimensionierungsvorrichtung zum auftragen einer behandlungssubstanz auf eine faserbahn |
| CN108787312A (zh) * | 2018-07-02 | 2018-11-13 | 刘先平 | 一种纺织品自动涂层系统及该系统的纺织涂层加工工艺 |
| AT16455U1 (de) * | 2017-05-08 | 2019-10-15 | Valmet Technologies Oy | Vorrichtung zur bewegung eines tragbalkens |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1493566B1 (de) * | 2003-07-03 | 2006-05-17 | Fischer & Krecke Gmbh & Co. | Druckmaschine |
| DE102004005087A1 (de) * | 2004-02-02 | 2005-08-18 | Voith Paper Patent Gmbh | Tragbalken |
| FI120915B (fi) * | 2004-08-27 | 2010-04-30 | Runtech Systems Oy | Palkkirakenne |
| FI117017B (fi) * | 2004-10-26 | 2006-05-15 | Metso Paper Inc | Paperi-, kartonki- tai jälkikäsittelykoneen palkkirakenne |
| FI20105921A7 (fi) | 2010-09-02 | 2012-03-03 | Valmet Technologies Inc | Kaavinkouru |
| DE102017109549B4 (de) * | 2017-05-04 | 2021-07-29 | Voith Patent Gmbh | Streicheinrichtung zur Behandlung einer Faserstoffbahn |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI100311B (fi) * | 1988-09-23 | 1997-11-14 | Voith Gmbh J M | Päällystyskoneiston kiillotuslaite |
| DE9113542U1 (de) * | 1991-10-31 | 1992-06-17 | J.M. Voith Gmbh, 7920 Heidenheim | Schaber |
| DE4141133C1 (en) * | 1991-12-13 | 1993-05-27 | J.M. Voith Gmbh, 7920 Heidenheim, De | Support beam for doctor blade bearing on dry cylinder - comprises elongated hollow body having 2 or more convex curved longitudinal walls and composed of composite fibre material e.g. carbon@ fibres |
| US5979119A (en) * | 1996-03-27 | 1999-11-09 | Trafton; Ronald H. | Components and assemblies for building construction and methods of making and using same |
| DE19649559A1 (de) * | 1996-11-29 | 1998-06-04 | Voith Sulzer Papiermasch Gmbh | Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Streichmediums auf eine laufende Materialbahn |
| DE29701176U1 (de) * | 1997-01-24 | 1997-05-22 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragmediums auf eine laufende Materialbahn |
| DE19713195A1 (de) * | 1997-03-27 | 1998-10-01 | Voith Sulzer Papiermasch Gmbh | Tragbalken |
| FI3818U1 (fi) * | 1998-10-22 | 1999-03-16 | Valmet Corp | Paperikoneen tai kartonkikoneen telan tai sylinterin yhteydessä oleva kaavinpalkki |
| FI105578B (fi) * | 1998-10-23 | 2000-09-15 | Valmet Corp | Sellukoneen/paperikoneen/kartonkikoneen tai paperin/kartongin jälkikäsittelylaitteen palkkirakenne |
-
2000
- 2000-11-29 DE DE10059281A patent/DE10059281A1/de not_active Withdrawn
-
2001
- 2001-11-26 US US09/994,221 patent/US6672028B2/en not_active Expired - Fee Related
- 2001-11-27 DE DE50115130T patent/DE50115130D1/de not_active Expired - Lifetime
- 2001-11-27 EP EP01128122A patent/EP1211053B1/de not_active Expired - Lifetime
- 2001-11-27 AT AT01128122T patent/ATE444155T1/de active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006013130A1 (de) * | 2004-07-30 | 2006-02-09 | Voith Patent Gmbh | Tragelement |
| EP2811070B1 (de) | 2013-06-06 | 2016-04-20 | Valmet Technologies, Inc. | Auftragungseinheit einer beschichtungs- oder dimensionierungsvorrichtung zum auftragen einer behandlungssubstanz auf eine faserbahn |
| CN104368503A (zh) * | 2014-12-01 | 2015-02-25 | 常熟市方塔涂料化工有限公司 | 涂料刮刀 |
| AT16455U1 (de) * | 2017-05-08 | 2019-10-15 | Valmet Technologies Oy | Vorrichtung zur bewegung eines tragbalkens |
| CN108787312A (zh) * | 2018-07-02 | 2018-11-13 | 刘先平 | 一种纺织品自动涂层系统及该系统的纺织涂层加工工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1211053B1 (de) | 2009-09-30 |
| US20020102372A1 (en) | 2002-08-01 |
| US6672028B2 (en) | 2004-01-06 |
| DE10059281A1 (de) | 2002-06-06 |
| ATE444155T1 (de) | 2009-10-15 |
| DE50115130D1 (de) | 2009-11-12 |
| EP1211053A3 (de) | 2006-05-31 |
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