EP1606205A2 - Dispositif pour guider une bande de matiere fibreuse en deplacement - Google Patents

Dispositif pour guider une bande de matiere fibreuse en deplacement

Info

Publication number
EP1606205A2
EP1606205A2 EP04712055A EP04712055A EP1606205A2 EP 1606205 A2 EP1606205 A2 EP 1606205A2 EP 04712055 A EP04712055 A EP 04712055A EP 04712055 A EP04712055 A EP 04712055A EP 1606205 A2 EP1606205 A2 EP 1606205A2
Authority
EP
European Patent Office
Prior art keywords
roller
web
fibrous web
gas
running
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.)
Ceased
Application number
EP04712055A
Other languages
German (de)
English (en)
Inventor
Werner Buttschardt
Wolfgang Schmitt
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 Paper 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
Priority claimed from DE102004003899A external-priority patent/DE102004003899A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1606205A2 publication Critical patent/EP1606205A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/115—Details of cross-section or profile other
    • B65H2404/1152—Markings, patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1314—Details of longitudinal profile shape convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/14—Means using fluid made only for exhausting gaseous medium with selectively operated air supply openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/42—Distribution circuits
    • B65H2406/423—Distribution circuits distributing fluid from stationary elements to movable element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed

Definitions

  • the invention relates to a device for guiding a running fibrous web, in particular paper or cardboard web, with a guide element which extends essentially over the entire width of the fibrous web.
  • a guide element which extends over the entire width of the fibrous web, is known from EP-A2-0744 388.
  • the slide strip described here which acts as a guide element, is fixedly arranged below the running fibrous web.
  • the upper side of the slide strip facing the underside of the fibrous web is convex in shape.
  • omega folds in terms of their shape.
  • omega folds cause considerable losses in quality, for example in the case of a web to be produced and / or refined.
  • the body thus configured as a known aircraft wing is able to achieve a spreading effect of the moist or freshly coated fibrous web.
  • a certain disadvantage is its relatively complicated design.
  • the invention has for its object to develop a device with a more simply designed or to be provided guide element, which enables both a mainly contactless guidance and deflection, as well as elimination and / or avoidance of longitudinal folds of a running fibrous web.
  • the object of the invention is achieved by a device specified in claim 1.
  • this device comprises as a guide element a roller rotating in the running direction of the fibrous web.
  • This roller is designed in this way and, in addition, means are provided which make it possible to form a thin gas film or only a gas boundary layer between the surface of the roller and the side of the fibrous web under tension which runs over this surface.
  • the gas film extends continuously over the entire wrapping area (ie that handling area of that of the fibrous web is entwined). Surprisingly, a spreading effect on the fibrous web can thereby be achieved.
  • This thin gas film in conjunction with the set web tension exerts pressure on the web and thus brings about this effect. The dreaded longitudinal folds in the fibrous web can thereby be eliminated or even avoided entirely.
  • This gas sliding film also causes such a distance of the fibrous web from the roll surface or has such a thickness that the web hovers essentially contactlessly (during the operation of the device) over the roll.
  • the web can briefly or locally touch the roller if the operating speed (often up to 2000 m / min) has not yet been reached or if there are particularly strong irregularities and folds in the web. This contact is harmless.
  • the gas film that can be achieved with the device according to the invention is very thin. It is equal to / less than 10 mm, preferably ⁇ 5 mm, in particular 0-2 mm, between the fiber web and the roll surface.
  • the roller runs in a driven manner and has a higher peripheral speed than the running speed of the fibrous web, which, as already mentioned above, is between 1500 and 2000 m / min.
  • the roller has a relatively large outer diameter. This should be at least 450 to 600 mm, but preferably 800 mm.
  • the choice of diameter depends on the web speed, the type of paper or cardboard and also the web width. The latter is often about 10 m and more for reasons of economy.
  • the thickness of the gas film is and thus the distance of the web from the roll surface can be influenced. So the faster the roller turns, the thicker the gas film that guides the web. With a larger diameter of the roller, the base area of the gas film is larger and thus optimizes the stability of the guide.
  • An expedient embodiment of the invention can consist in the roller being designed as a blowing roller with an integrated gas supply.
  • the gas is supplied by pumping, which is generated by the rotating roller by being driven at a speed different from that of the web.
  • the speed of the roller is higher than that of the web.
  • the roller does not need to be driven in order to form a gas film.
  • the roller rotates when the machine is started up or the device is started up. The entrained air then jams between the roller and the fibrous web during operation.
  • the blow roller can have a fixed pressure chamber which is open towards its outer circumference and which can be acted upon by a gas, in particular air or steam.
  • the roller is also provided with an outer jacket rotating about its axis.
  • a large number of through or outlet openings are incorporated in the outer jacket, so that the gas can escape in the form of jets and the roller can thereby act as said blowing roller.
  • the gas jets are through the outlet openings, in the direction of the blow roller tapered fibrous web steerable.
  • a very advantageous and, above all, structurally less complex solution can consist in that the guide roller is designed as a solid jacket roller instead of the roller described above, which has outlet openings.
  • the solid jacket of the roller is assigned a separate blowing nozzle which is acted upon by a gas, such as air, in particular conditioned air or steam.
  • a gas such as air, in particular conditioned air or steam.
  • blowing nozzle is arranged in the feed area (that is, the area of the roller to which the web runs in its running direction) of the fibrous web.
  • a possible variant of the design of the blowing nozzle can consist in the fact that it is designed essentially web-wide with a continuous blowing slot.
  • Another variant can consist of being distributed over the width of the roller arranged individual blowing nozzles are provided. With these individual nozzles, the size and direction of the jets to be ejected can be better adjusted and maintained independently of one another.
  • a further advantageous embodiment of the roller proposed as a guide element, in particular that with the solid jacket, can consist in that its outer surface is equipped with a surface that corresponds to that of a golf ball.
  • a surface consists of a large number of lined up, uniform and circular dents, which improve the flight characteristics of the golf ball in a particularly high degree - namely to be able to fly quickly, thereby far and in a precise line. Transferred to the present fibrous web, this means improved running properties within a manufacturing and / or finishing machine for the fibrous web and also an improvement in its quality.
  • the guide element according to the invention or the roller described is therefore particularly suitable for use within the said machine.
  • the roller can be arranged in the immediate vicinity of a contactless deflecting element, for example an air turn or floating dryer.
  • the roller can also be used as an independent web guiding element, as a replacement for an air turn.
  • the roller according to the invention can be used particularly advantageously in coating systems.
  • the formation of longitudinal folds is particularly critical here with regard to an even application layer. For this reason and to protect the freshly applied layer, it is arranged downstream of a coating unit for coating one or both sides of the fibrous web in the running direction of the fibrous web.
  • the guide roller is only arranged on one side of the web (for one-sided application) or on both Web sides (for two-sided orders) make sense.
  • This arrangement and the direction and intensity of the jets emitted by the blow roller with a perforated outer jacket into the inlet area of the fibrous web or the jets emitted by the blow nozzle to the full jacket roller produce the known Coanda effect. It consists in the blowing jet or the blowing jets generating high speed in the region of the convexly curved outer jacket of the roller. This creates a gas layer that is just thick enough that the fibrous web can slide over it almost without contact. In addition, the web is sucked towards the roller, stabilized and smoothed in the transverse direction. Existing web longitudinal folds slide transversely to the web running direction, i.e. to the side and thus away to the outside and thereby disappear. In the most favorable case, these dreaded longitudinal folds do not even occur when the device according to the invention is used.
  • This device on the one hand increases the runtime efficiency with high operational reliability of the manufacturing and / or finishing machine, that is to say the coating machine, and on the other hand improves the product quality, such as that of a coated paper.
  • Measures to increase the train train are no longer necessary. This is all the more important since a web that has not yet dried completely or a freshly painted web is particularly at risk of tearing.
  • Another advantage of the invention is that only small amounts of gas are required to guide the fibrous web largely without contact.
  • Figures 1, 2 and 3 a device according to the invention with a guide element in the form of a roller in cross section
  • Figure 4 the top view of the surface profile of the invention
  • the device according to the invention comprises a guide element which is designed as a roller and is generally designated 1 in all figures.
  • FIG. 1 shows a special embodiment of the roller 1, which acts here as a blowing roller and is designated 1.0.
  • This blow roller 1.0 essentially consists of a roller core 1.1, a concentric support part 1.2 and an outer jacket 1.3 with a surface O.
  • the support part 1.2 contains a partition walled off by side walls 1.4 and 1.5, but by at least one adjustable side wall (in the example, this is wall 1.4 ) an adjustable pressure chamber 1.6.
  • This pressure chamber 1.6 is connected to a gas supply line 1.7, in particular a compressed air line, and is open to the outer jacket 1.3.
  • the Pressure chamber 1.6 is designed to be stationary, while the outer casing 1.3, which is provided with a large number of passage or outlet openings 1.8, rotates in the direction of the arrow R around the core 1.1 or the supporting part 1.2.
  • the outlet openings 1.8 are also adjustable in size (for example by arranging slides, not shown) and also in their outflow direction.
  • Gas jets 3 are thereby very effectively expelled through the openings 1.8, specifically in the direction of the inlet side 4 of a paper web 5 tapering towards the blowing roller 1.0.
  • the pressure chamber has the cross-sectional shape of a circular sector and, due to its adjustability through the side wall 1.4, regulates the quantity.
  • the pressure chamber wall 1.4 should be set at an angle of approximately 45 °, in particular in the range from 15 ° to 30 ° to an imaginary vertical roller axis Av, because the pressure chamber 1.6 adjoining it in this area contains the gas selected for the formation of the gas film GF can be optimally fed.
  • the desired gas film GF is formed, which serves to guide and stabilize the paper web 5.
  • a vacuum is also formed in the area of the circular outer surface 1.9 of the blowing roller, which allows the air boundary layer to flow and is known as the "Coanda effect". This air flow can now be used to eliminate or even avoid longitudinal folds or omega folds in the fibrous web, or in a still moist fibrous web 5 treated with a liquid to pasty application medium.
  • the thickness of the gas film between the roller surface and the fibrous web expediently only needs to be very small.
  • the thickness a is regulated as Control variable by changing the conveyed air volume and / or the set pressure and / or the speed of the roller as a manipulated variable.
  • the wrap angle of the web 5 on the roller 1 and / or surface parameters - such as spring stiffness, coefficient of friction, surface structure of the roller 1 - can also be taken into account in the control.
  • the regulation can also take place as a function of the web tension and / or the running speed of the web 5.
  • FIG. 2 there is also a blowing roller 1.0, as in FIG. 1, but with jets 3 directed essentially downwards.
  • the roller 1.0 is only shown with the outer contour (ie without an interior). If the roller 1.0 now rotates faster than the speed of the paper web 5, a particularly stable air boundary layer LG is maintained. For example, the roller speed is increased by 1 m / s compared to the web speed.
  • roller 1 Another variant of the roller 1 that is easier to manufacture can be seen in FIG.
  • the roller 1 here has a solid jacket 6 instead of a perforated outer jacket. It also contains no pressure chamber.
  • a separate blowing nozzle 7 is arranged in the inlet gusset Z or the web inlet side 4.
  • the outflow direction of the blowing nozzle 7 is aimed at the solid jacket 6.
  • the blowing nozzle 7 is designed in the present example in the form of a pipe 7.1 adapted to the width of the roller 1 with a plurality of outflow openings 7.2, but could also have a continuous outflow slot with gas feeds which can be acted upon separately. Air or steam can also be used as the medium for the formation of the gas film GF, as in the blow roller according to FIGS.
  • a preferred surface profile of the roller 1 or 1.0 can be seen. It is designed in the manner of the surface profile of a golf ball, with a plurality of dents 8 which preferably cover the entire surface O.
  • the dents 8 have a gentle inlet radius to the initial level of the roll surface O or outer jacket 1.3.
  • Such a surface structure has a particularly positive effect on the running behavior of the paper web 5.
  • a guide roller with such a surface is known from DE-A1 10048305.4.
  • the desired flow conditions of the gas sliding layer GF can be influenced.
  • metal or plastic for example a fiber-reinforced plastic such as glass-fiber reinforced plastic (GRP), can be selected.
  • GFP glass-fiber reinforced plastic
  • FIGS. 5 to 8 show the roller according to the invention in connection with a coating machine 9.
  • the coating machine 9 is arranged downstream of a drying section (not shown in the figures) of a machine for producing and finishing a paper or cardboard web.
  • the roller according to the invention could also be used in other parts of the machine where the paper web 5 tends to wrinkle due to its moisture content or where irregularities in the fibrous web are expected.
  • the coating machine 9 contains the nip-forming application rollers 9.1 and 9.2 and application units 9.3 here for indirect application.
  • FIG. 5 shows that the guide element or the roller 1 can act as an independent web guide element in a region of a free web tension.
  • this roller 1 can also be used in the immediate vicinity of a contactless deflecting element, for example an air turn 10 and / or a contactless web drying element, a floating dryer 11, as shown in FIGS. 6 to 8.
  • a contactless deflecting element for example an air turn 10 and / or a contactless web drying element, a floating dryer 11, as shown in FIGS. 6 to 8.
  • roller 1 is arranged within a free web train, as said.
  • FIGS. 5, 7 and 8 such a roller 1 is assigned to both web sides 5a and 5b.
  • FIG. 6 shows the arrangement of one roller 1 in front of and one behind a floating dryer 11.
  • the device according to the invention could also be used in a construction which is known in the applicant's company under the name "Module Dryer” and is partially shown in FIG. 8.
  • a roller 1 or 1.0 or 6 is assigned to both the upward and downward paper webs 5 and acts as an air reservoir (ie as a deflection element, which can also be designed as a dryer), whereby it is directly a structural unit with the Schwebetrock ⁇ er 11 forms.
  • FIGS. 5 to 7 show, there are in principle several rollers 1, 1.0 and 6 used.
  • the outer diameter of each of these rollers should have a minimum diameter of 450 mm in view of the formation of the gas film.
  • roller 0, 1.0 or 6 The shape of the roller 0, 1.0 or 6 is not illustrated in the figures.
  • the said undesirable folds occur when the paper web is deflected.
  • the installation of the rollers according to the invention in front of a deflection device even the folds can be prevented, with the installation after the deflection device, preferably after the first contactless deflection, folds can be compensated for.

Landscapes

  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

La présente invention concerne un dispositif pour guider une bande de matière fibreuse en déplacement, en particulier une bande de papier ou de carton, comprenant un élément de guidage (1) qui s'étend sensiblement sur toute la largeur de la bande de matière fibreuse (5). Selon l'invention, en tant qu'élément de guidage sont utilisés un cylindre (1) qui tourne dans la direction de déplacement (L) de la bande de matière fibreuse (2) et un mécanisme qui permet la formation d'une unique film de gaz (GF) entre sa surface (0) et le côté (5a, 5b) de la bande de matière fibreuse (5), qui se déplace au-dessus de cette surface (0). La bande de matière fibreuse (2) n'est sensiblement jamais en contact avec le cylindre (1) et est en mesure d'exercer sur la bande de matière fibreuse (5) un effet d'étirage en largeur de sorte que les plis longitudinaux dans la bande de matière fibreuse (5) peuvent être supprimés ou évités.
EP04712055A 2003-02-22 2004-02-18 Dispositif pour guider une bande de matiere fibreuse en deplacement Ceased EP1606205A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10307608 2003-02-22
DE10307608 2003-02-22
DE102004003899A DE102004003899A1 (de) 2003-02-22 2004-01-27 Vorrichtung zum Führen einer laufenden Faserstoffbahn
DE102004003899 2004-01-27
PCT/EP2004/050148 WO2004074148A2 (fr) 2003-02-22 2004-02-18 Dispositif pour guider une bande de matiere fibreuse en deplacement

Publications (1)

Publication Number Publication Date
EP1606205A2 true EP1606205A2 (fr) 2005-12-21

Family

ID=32909544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04712055A Ceased EP1606205A2 (fr) 2003-02-22 2004-02-18 Dispositif pour guider une bande de matiere fibreuse en deplacement

Country Status (2)

Country Link
EP (1) EP1606205A2 (fr)
WO (1) WO2004074148A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007000507B4 (de) 2007-10-15 2010-03-11 Koenig & Bauer Aktiengesellschaft Walze eines Trockners
DE102007000508B4 (de) 2007-10-15 2011-09-15 Koenig & Bauer Aktiengesellschaft Trockner für mindestens eine Materialbahn
WO2010122030A2 (fr) * 2009-04-21 2010-10-28 Applied Materials, Inc. Dispositifs et procédés de guidage pour guidage sans contact d'un tissu dans un procédé de revêtement de tissu
DE102009060276A1 (de) * 2009-12-23 2011-06-30 Eastman Kodak Co., N.Y. Vorrichtung zum Wenden von bahnförmigen Substraten
US9248989B2 (en) 2013-09-03 2016-02-02 Eastman Kodak Company Positive pressure web wrinkle reduction system
US9120634B1 (en) * 2014-02-26 2015-09-01 Eastman Kodak Company Media guiding system using bernoulli force roller
US9079736B1 (en) 2014-02-26 2015-07-14 Eastman Kodak Company Wrinkle reduction system using Bernoulli force rollers
US9352923B2 (en) 2014-02-26 2016-05-31 Eastman Kodak Company Air shoe with roller providing lateral constraint
CN111051260B (zh) * 2017-08-16 2022-06-14 康宁股份有限公司 在光纤拉制过程期间支承光纤的具有光纤支承通道的流体轴承

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931209A1 (de) * 1969-06-20 1971-04-22 Vits Maschb Gmbh Einrichtung zur beruehrungslosen Umlenkung von Warenbahnen
DE3009325C2 (de) * 1980-03-11 1984-08-16 Vits-Maschinenbau Gmbh, 4018 Langenfeld Blasluftgespeiste Umlenkvorrichtung für Warenbahnen
DE3049790C2 (de) * 1980-03-11 1985-12-05 Vits-Maschinenbau Gmbh, 4018 Langenfeld Blasluftgespeiste Hohlwalze
DE4415581C2 (de) * 1994-05-04 1995-12-07 Voith Gmbh J M Papier-Streichvorrichtung
WO1998008765A1 (fr) * 1996-08-26 1998-03-05 Emtec Magnetics Gmbh Rouleau de guidage d'une bande de matiere
DE19634448C2 (de) * 1996-08-26 1999-06-24 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19946379A1 (de) * 1999-09-28 2001-03-29 Voith Paper Patent Gmbh Maschine zur Herstellung und/oder Bearbeitung einer Materialbahn
US6336608B1 (en) * 2000-02-29 2002-01-08 James Robert Cope Flexible web roller guide assembly with an integral centrifugal pump capability to provide a hydrostatic air bearing function to the roller guides outside supporting surface
US6533217B2 (en) * 2001-03-20 2003-03-18 Faustel, Inc. Web-processing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004074148A3 *

Also Published As

Publication number Publication date
WO2004074148A2 (fr) 2004-09-02
WO2004074148A3 (fr) 2005-01-27

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