EP0482500A1 - Dispositif de guidage pour guider, devier et/ou retourner une bande de matériau - Google Patents

Dispositif de guidage pour guider, devier et/ou retourner une bande de matériau Download PDF

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Publication number
EP0482500A1
EP0482500A1 EP91117662A EP91117662A EP0482500A1 EP 0482500 A1 EP0482500 A1 EP 0482500A1 EP 91117662 A EP91117662 A EP 91117662A EP 91117662 A EP91117662 A EP 91117662A EP 0482500 A1 EP0482500 A1 EP 0482500A1
Authority
EP
European Patent Office
Prior art keywords
block
material web
guide device
medium
bores
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
EP91117662A
Other languages
German (de)
English (en)
Other versions
EP0482500B1 (fr
Inventor
Uwe Dipl.-Ing. Gartmann
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6416860&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0482500(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0482500A1 publication Critical patent/EP0482500A1/fr
Application granted granted Critical
Publication of EP0482500B1 publication Critical patent/EP0482500B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H47/00—Unfolding thin limp material
    • 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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/035—Controlling transverse register of web by guide bars
    • 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
    • B65H23/32—Arrangements for turning or reversing webs
    • 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
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
    • 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

Definitions

  • the invention relates to a guide device for guiding, deflecting and / or deflecting a material web, which is guided over a number of rolls, the guide device being connected to a medium supply device and extending over the entire width of the rolls and having bores through which a Medium flow flows against the material web in the given direction.
  • an air guiding device for guiding an endless web, e.g. a paper web that runs in a meandering shape over a plurality of cylinders or alternately over cylinders and guide rollers.
  • This air guiding device is connected to a blown air supply and extends across the entire width of the cylinders and guide rolls, air being blown against the material web in each case in a predetermined direction via blown openings.
  • the blowing direction of the air is reversible, this is done in such a way that two successive, mutually separated pressure chambers, one of which acts as a suction chamber and the subsequent one as a blowing chamber in normal operation, can be switched so that the inlet-side pressure chamber as a blowing chamber and the subsequent pressure chamber as Suction chamber take effect.
  • the air guiding device can also be subdivided into a number of separate air chambers in relation to the direction of travel of the material web, an edge-side chamber being provided for transferring a transfer strip when starting up or after a goods tear.
  • the air chambers are individually adjustable with respect to the blowing direction in accordance with the predetermined or the inverted blowing direction.
  • the air volumes can also be adjusted depending on the blowing direction.
  • the known air guiding device on the one hand guides the endless web of goods safely on their way to and between the cylinders and / or the guide rollers and on the other hand maximizes the conditioning of the web of goods, for example their drying.
  • the paper web runs from cylinder to cylinder.
  • the air guiding device counteracts the forces acting on the web by means of adhesion, friction, negative pressure, dynamic pressure, dead weight and centrifugal forces. It must be taken into account that an optimal drying effect should also be achieved with such air guiding devices, which is best when air is blown out against the direction of travel of the paper web, since this creates turbulence on the surface of the paper web which accelerates drying.
  • transfer strip When starting up a paper machine or after tearing off the paper web when threading the so-called transfer strip, however, such a blowing direction against the running direction of the paper web is unfavorable, since the relatively narrow transfer strip is blown away by the blowing jet due to its relatively low weight.
  • blowing direction can be inverted and, furthermore, the paper web, viewed in the running direction, can be blown differently in sections in different directions.
  • DE-OS 40 03 956 describes a vacuum nozzle system for contactless carrying and handling of material webs, e.g. for drying, heating and cooling, known.
  • This vacuum system consists of a nozzle box, which has a surface lying opposite the web, on which there are two nozzle gaps, the nozzle system being asymmetrical with respect to the vertical central plane of the vacuum support surface.
  • the nozzle box has a substantially flat wing, on one edge of which an arc-shaped Coanda air guide surface is attached, on which the first nozzle of the nozzle system is located.
  • Their blowing direction initially runs essentially perpendicular to the plane of the web to be carried.
  • the Coanda air guiding surface is arranged in such a way that it deflects the air flow emerging from the first nozzle in the direction of the plane of the airfoil and the web running over it.
  • a guide vane In the edge area opposite to the first nozzle there is a guide vane, which continues the flat wing continuously.
  • a second blowing nozzle In the area or on the outer edge of the guide surface, a second blowing nozzle is arranged, the direction of which runs parallel to the guide surface of the wing.
  • a device for web edge monitoring of a guided web is described in DE-OS 39 03 783.
  • This is a device for conveying a flat object, in particular an endless material web, which comprises conveying means for moving the object in a predetermined direction and a monitoring device for monitoring the position of the object.
  • the monitoring device contains a blowing nozzle directed towards the edge region of the surface of the object, which blows out a gaseous jet.
  • the pressure measuring device is connected to an evaluation and control arrangement for processing the measuring signals into position signals which represent the position of the edge of the object.
  • Such a device enables an exact processing and processing of objects the, whereby a material web, in particular of paper, or another flat object is conveyed along a predetermined path and lateral positional deviations are prevented. This is done by continuously monitoring the position of an edge of the material web or the flat object, and corrective measures are initiated when deviations from a predetermined position of the edge occur. This side edge control thus prevents the object from migrating sideways.
  • the object of the invention is to improve a guide device of the type described at the outset so that when the material web is deflected and / or deflected, the curvature of the material web depending on the web width changing, the side edges of the material web are guided without lateral deviation .
  • the block is cylindrical, the bores are accommodated in sections and a predetermined number of bores in the sections are connected to one another.
  • the bores are arranged as throttle bores in a surface facing the material web and this surface is at a predetermined distance from the rear sides of the sections of the block.
  • the different actuation of the individual sections of the segmented block which is a kind of support nozzle, creates lateral force components in addition to the longitudinal edges of the material web, which are used to guide the side edges.
  • the invention can be used both for material webs carried in air and for material webs which are transported in baths filled with liquids.
  • the transport of thin foils or metal strips in dryer devices can be involved, while in the second case the strip guidance of aluminum strips in electroplating baths can be considered.
  • a material web 2 for example an aluminum band, paper web, film web or the like, which is guided over rollers 19 and a guide device 1, is shown schematically in FIG.
  • the guide device 1 comprises, as an essential component, a segmented, i.e. sectioned support nozzle in the form of a block with a curved surface, in which holes are arranged within the individual sections.
  • the supporting nozzle is pressurized with compressed air via a supply device and ensures problem-free deflection, deflection and precise side edge guidance of the material web 2.
  • Deflection means deviating from the original movement plane. Deflection is a deviation from the original direction of movement in the same plane of movement.
  • FIG. 2 shows a schematic overview of the transport of a material web 2 through a liquid bath, for example the passage of an aluminum strip through an electroplating bath.
  • the material web 2 is a deflection rollers 20, 21
  • Guide device 1 and a further deflection roller 22 are introduced into the liquid bath, transported through it and guided out of it.
  • the bath liquid of the liquid bath is expediently used as the operating medium for the guide device 1.
  • the guide device 1 facilitates the deflection of the material web 2, since this is lifted off the surface by the medium flowing out of the holes in the surface of the support nozzle of the guide device 1, so that neither adhesive nor frictional forces have to be overcome during the directional change.
  • a further guide device 1 can be provided.
  • FIG 3 a first embodiment of a guide device 1 according to the invention is shown schematically in section.
  • the guide device 1 includes a support nozzle in the form of a block 3 with a curved surface, which has a circular cross section, as can be seen from Figure 4.
  • a material web 2 is guided over the supporting nozzle at a short distance from the curved surface.
  • Holes 4A to 4F which are accommodated in sections 5A, 5B,... 5F of block 3, run transversely to the material web in block 3.
  • the individual sections there is in each case a predetermined number of bores which are connected to one another and are connected to a medium supply device 8 via a common line 7A, 7B,... 7F.
  • the bores 4A to 4F are designed as throttle bores and are arranged in a surface 6 facing the material web 2. This surface 6 is at a certain distance from the rear sides 18 of the sections 5A,... 5F of the block 3.
  • each of the sections 5A,... 5F is via a line 7A,... 7F, which are passed through the block 3, connected to the medium supply device 8.
  • a control valve 9A,... 9F via which the respective medium flow through the lines can be regulated towards the bores of the individual section.
  • the medium flows through the throttle bores of the individual sections flow against the direction of movement of the material web in the given direction.
  • the flow through the lines is controlled by means of the control valves 9A,...
  • the material web 2 is deflected via the cylindrical block 3.
  • the various throttle bores are located in the individual sections in the region of the curvature, only the throttle bores of section 5A being shown in FIG. 4, for example. Either compressed air or a liquid can be used as the medium. If the throttle bores are supplied with compressed air in the individual sections, a carrier air film is formed between the block 3 and the material web 2. The gaps in front of and behind the bores and to the side of the bores form throttle zones, so that a pressure build-up takes place between the material web 2 and the block 3.
  • the distance of this column from the surface of the block can be varied locally, which is equivalent to the fact that the material web is guided in different radii above the individual sections and thus not only the material web in the desired manner deflected, but can also be deflected, as will be explained in more detail below.
  • Controlled deflection or lateral guidance of the material web can be achieved by the targeted application of the compressed air to the sections 5A,... 5F, as will be explained in more detail with reference to FIG. 5.
  • FIG. 4 shows a section through section 5A of block 3 or the carrying nozzle along line II in FIG. 3.
  • the central bore of this sectional illustration shows the cross section of line 7A, from which a channel leads upwards, which opens into section 5A .
  • the throttle bores 4A are designed like a lattice and ensure that pressure builds up in the section 5A and the medium, for example air, emerges from the throttle bores 4A with appropriate pressure and flows against the material web.
  • FIG. 5 schematically shows the deflection of the material web 2, which is normally guided around the block 3 at a constant distance. If the air pressure in each of the sections 5A to 5F of the first embodiment of the guide device 1 is increased in accordance with the air pressure curve 23, the air pressure prevailing in line 7A and section 5A is the lowest and the air pressure prevailing in line 7F and section 5F is greatest highest, whereby the result is that the material web 2 at the right end of the block 3 is the smallest and at the left end of the block 3 the greatest distance from the surface of the block and is thereby deflected from its normal orbit and the position shown as deflected material web 2 'occupies.
  • FIG. 6 shows a section through a section A of a second embodiment of the guide device.
  • the block or the carrying nozzle is as Deflection block 10 formed with an elliptical cross section.
  • Deflection block 10 formed with an elliptical cross section.
  • the cross section of the central bore 11 is considerably larger than the cross section of the radial channels 12A, which leads to a corresponding throttling of the medium flow and thus to an increase in pressure of the medium which emerges through the throttle bores 13A of section A of the elliptical deflection block 10.
  • the deflecting block 10 of the second embodiment of the guiding device serves primarily to deflect the material web 2 around 1800.
  • the deflecting block 10 looks similar to the block 3 of the first embodiment according to FIG. 3 off, ie the deflection block 10 is divided into different sections A to E, and each section is assigned a number of throttle bores 13A to 13E.
  • FIG. 6 only the central bore 11 and the radial channels 12A and the throttle bores 13A of section A are shown in cross section. The remaining sections with their channels and with their central bore are constructed in the same way.
  • gaps 14 and 15 in front of and behind the throttle bores 13A, as seen in the direction of travel of the material web 2. Gaps are also provided to the side of the throttle bores 13A, which together with the gaps 14 and 15 throttle points for form the outflowing medium, so that a pressure build-up between the deflection block 10 and the material web 2 takes place, which ensures that the material web 2 is guided at a distance around the surface of the deflection block 10.
  • the carrier medium film formed between the deflection block 10 and the material web 2 has a thickness which varies in accordance with the respective medium pressure in the individual channels 12A,... 12E of the sections A to E of the deflection block 10.
  • the deflection block 16 has a parabolic cross section. This embodiment of the guide device is particularly suitable for a web deflection of less than 180.
  • the deflection block 16 is also divided into sections A to E, in each of which throttle bores 17A, ... 17E are arranged.
  • the medium for guiding and deflecting the material web 2 can be either compressed air or the respective bath liquid if the material web 2 is passed through a liquid bath, for example an electroplating bath.

Landscapes

  • Advancing Webs (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Knitting Machines (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
EP91117662A 1990-10-23 1991-10-16 Dispositif de guidage pour guider, devier et/ou retourner une bande de matériau Expired - Lifetime EP0482500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033642A DE4033642A1 (de) 1990-10-23 1990-10-23 Leitvorrichtung zum fuehren, aus- und/oder umlenken einer materialbahn
DE4033642 1990-10-23

Publications (2)

Publication Number Publication Date
EP0482500A1 true EP0482500A1 (fr) 1992-04-29
EP0482500B1 EP0482500B1 (fr) 1994-08-03

Family

ID=6416860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117662A Expired - Lifetime EP0482500B1 (fr) 1990-10-23 1991-10-16 Dispositif de guidage pour guider, devier et/ou retourner une bande de matériau

Country Status (5)

Country Link
US (1) US5353979A (fr)
EP (1) EP0482500B1 (fr)
JP (1) JPH05124759A (fr)
KR (1) KR920007909A (fr)
DE (2) DE4033642A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548419A1 (fr) * 1990-06-02 1993-06-30 Spooner Industries Limited Dispositif pneumatique de changement de direction
WO2002020386A1 (fr) * 2000-09-09 2002-03-14 Vits-Maschinenbau Gmbh Barre de retournement
WO2011142944A1 (fr) * 2010-05-12 2011-11-17 Eastman Kodak Company Dispositif de retournement de système de transport de support

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JP3686679B2 (ja) * 1996-06-14 2005-08-24 ケーニツヒ ウント バウエル アクチエンゲゼルシヤフト フローティングドライヤ
DE19633710A1 (de) * 1996-08-21 1998-02-26 Brueckner Apparatebau Gmbh Einrichtung zum Breithalten von nassen Warenbahnen
US6035259A (en) * 1997-06-18 2000-03-07 Eastman Kodak Company Web material camber measurement apparatus and method
DE19747040A1 (de) * 1997-08-28 1999-03-04 Heidelberger Druckmasch Ag Luftpolsterführung
DE19833977A1 (de) * 1998-07-28 2000-02-03 Voith Sulzer Papiertech Patent Verfahren zum Steuern der Querposition einer laufenden Materialbahn, insbesondere aus Papier oder Karton
US6397495B1 (en) 1999-12-30 2002-06-04 Heidelberger Druckmaschinen Ag Web steering air flotation device for printing equipment
US6846374B2 (en) 2000-05-16 2005-01-25 Kimberly-Clark Worldwide Method and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US6723034B2 (en) 2000-05-16 2004-04-20 Kimberly-Clark Worldwide, Inc. Presentation of fastening components for making prefastened and refastenable pants
US7387148B2 (en) 2001-05-15 2008-06-17 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US6497032B2 (en) 2000-05-16 2002-12-24 Kimberly-Clark Worldwide, Inc. Refastenable bonding of garment side panels
US6513221B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US6565691B2 (en) 2000-05-16 2003-05-20 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming a lap seam
US6514187B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Folding and manufacture of pants
US6596113B2 (en) * 2000-05-16 2003-07-22 Kimberly-Clark Worldwide, Inc. Presentation and bonding of garment side panels
US6562167B2 (en) 2000-05-16 2003-05-13 Kimberly-Clark Worldwide, Inc. Methods for making garments with fastening components
US6481362B2 (en) 2000-05-16 2002-11-19 Kimberly-Clark Worldwide, Inc. Orbital motion device for seaming garments
DE10115916B4 (de) * 2001-03-30 2006-03-23 Koenig & Bauer Ag Wendestange für eine Materialbahn
US6991717B2 (en) * 2002-04-05 2006-01-31 3M Innovative Properties Company Web processing method and apparatus
DE10248249B4 (de) 2002-10-16 2006-06-01 Koenig & Bauer Ag Trockner für eine Materialbahn
DE10322519A1 (de) * 2003-05-19 2004-12-09 Voith Paper Patent Gmbh Bahnführungseinrichtung
DE10339262A1 (de) * 2003-08-26 2005-03-17 Voith Paper Patent Gmbh Bahnführungseinrichtung
DE10344715A1 (de) * 2003-09-26 2005-04-21 Heidelberger Druckmasch Ag Vorrichtung zum Leiten eines Bedruckstoffes
DE10359113A1 (de) * 2003-12-17 2005-07-21 Voith Paper Patent Gmbh Breitstreckvorrichtung
GB0719218D0 (en) * 2007-10-02 2007-11-14 Lymn Peter P A Process tank
EP2243735A1 (fr) * 2009-04-21 2010-10-27 Applied Materials, Inc. Dispositifs de guidage et procédé de guidage sans contact d'une toile dans un procédé de revêtement de toile
US20100266766A1 (en) * 2009-04-21 2010-10-21 Stefan Hein Guiding devices and methods for contactless guiding of a web in a web coating process
US9038414B2 (en) * 2012-09-26 2015-05-26 Corning Incorporated Methods and apparatuses for steering flexible glass webs
US9689073B2 (en) 2015-07-29 2017-06-27 Eastman Kodak Company Electroless plating system including bubble guide
US9862179B2 (en) * 2015-07-29 2018-01-09 Eastman Kodak Company Web transport system including scavenger blade
US9771655B2 (en) 2015-07-29 2017-09-26 Eastman Kodak Company Web transport system including fluid shield
US9937705B2 (en) * 2015-12-02 2018-04-10 Eastman Kodak Company Liquid ejection hole configuration for web guide
KR102516327B1 (ko) * 2016-01-12 2023-03-30 가부시끼가이샤 제이씨유 수지 필름의 습식 처리 장치

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FR1385098A (fr) * 1964-03-04 1965-01-08 Kodak Pathe Dispositif pour le retournement de bandes continues en mouvement
US3521802A (en) * 1967-05-12 1970-07-28 Masson Scott Thrissell Eng Ltd Web guide members
EP0001323A1 (fr) * 1977-09-21 1979-04-04 International Business Machines Corporation Dispositif d'alignement de bande

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548419A1 (fr) * 1990-06-02 1993-06-30 Spooner Industries Limited Dispositif pneumatique de changement de direction
WO2002020386A1 (fr) * 2000-09-09 2002-03-14 Vits-Maschinenbau Gmbh Barre de retournement
WO2011142944A1 (fr) * 2010-05-12 2011-11-17 Eastman Kodak Company Dispositif de retournement de système de transport de support

Also Published As

Publication number Publication date
DE4033642A1 (de) 1992-04-30
JPH05124759A (ja) 1993-05-21
EP0482500B1 (fr) 1994-08-03
US5353979A (en) 1994-10-11
DE59102427D1 (de) 1994-09-08
KR920007909A (ko) 1992-05-27

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