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EP2329076B1 - Press-on unit for a paper, cardboard, or tissue machine - Google Patents

Press-on unit for a paper, cardboard, or tissue machine Download PDF

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Publication number
EP2329076B1
EP2329076B1 EP09781729A EP09781729A EP2329076B1 EP 2329076 B1 EP2329076 B1 EP 2329076B1 EP 09781729 A EP09781729 A EP 09781729A EP 09781729 A EP09781729 A EP 09781729A EP 2329076 B1 EP2329076 B1 EP 2329076B1
Authority
EP
European Patent Office
Prior art keywords
press
pressure
unit according
pressure body
blanket
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.)
Not-in-force
Application number
EP09781729A
Other languages
German (de)
French (fr)
Other versions
EP2329076A1 (en
Inventor
Christian 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.)
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
Publication of EP2329076A1 publication Critical patent/EP2329076A1/en
Application granted granted Critical
Publication of EP2329076B1 publication Critical patent/EP2329076B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors

Definitions

  • the invention relates to a pressing unit for a paper, board or tissue machine according to the preamble of claim 1.
  • press units are used in press arrangements to press the roller shell, which revolves around a press shoe, against a counter roller.
  • Pressing units are also used, for example, in sealing devices of suction rolls, in order to press a sealing strip of the sealing device for sealing an overpressure or underpressure zone against an environmental zone against the perforated roll shell.
  • pressing units are used in scraper, guide or stripping devices in order to set scraper, guide or stripping elements by means of this, for example, provided by a roller counter surface.
  • the pressing units known from the prior art often comprise at least one pressure body designed as a pressure hose or pressure bellows, which is deformable at least in sections and which comprises at least one cavity which can be acted upon by a pressure fluid.
  • a pressure body is supported on a support element and increases or decreases in the direction of a counter element in increasing or decreasing the loading of its cavity with the pressurized fluid relative to an initial state, whereby a relative to the initial state larger or smaller contact force is exerted on the counter element ,
  • Such known from the prior art pressure body has, for example, vulcanized bolts, by means of which this relative to the support element and / or counter element is held in position. Furthermore, it is known from the prior art to hold a pressure body by means of fixed guide surfaces, for example. In the form of a U-profile, in position. Example for holding pressure bodies by means of a band can be found in DE 3030 233 A1 and in W0 00/65152 A1 ,
  • a pressing unit for a paper, board or Tissuemaschine with a support element and a counter element and at least one disposed between the support element and the counter element, at least partially deformable pressure body, which comprises at least one acted upon by a pressurized fluid cavity, wherein the pressure body is supported on the support element and increases or decreases with an increase or decrease in the loading of its cavity with the pressure fluid relative to an initial state in a pressing direction and thereby exerts on the counter element a relation to the initial state larger or smaller contact force, and a Holding device by means of which the pressure body is held in its deformation relative to the support element and / or counter element in a defined position.
  • the pressing unit according to the invention is characterized in that the holding device at least a section of the at least one pressure body wraps around and the deformation of the pressure hull permitting cloth, by which the pressure body is held during its deformation in the defined position, wherein the at least one cloth wraps around the at least one pressure body for the most part and wherein the holding device further at least one fixed to the cloth Includes bar, by means of which the cloth is guided movable parallel to the pressing direction.
  • the deformable pressure body is held in position by a cloth wrapping around the pressure body at least in sections and permitting the deformation.
  • a cloth wrapping around the pressure body at least in sections and permitting the deformation.
  • the pressure body is held perpendicular to the pressing direction in position. This means that during its deformation a displacement of the pressure hull is suppressed perpendicular to the pressing direction, i. For example, that a displacement of the pressure body in the machine direction (MD) and / or in the cross machine direction (CMD) is prevented during its deformation.
  • MD machine direction
  • CMD cross machine direction
  • the at least one pressure body is wrapped by the at least one cloth for the most part. If, for example, the pressure body has a longitudinal direction and a circumferential direction, then it is advantageous if, in its circumferential direction, it is wrapped around the cloth at least in sections, in particular for the most part.
  • the longitudinal direction is understood to be the direction of the greatest extent of the pressure hull.
  • the holding device further comprises at least one bar, which is or are firmly connected to the cloth and by means of which the cloth is fixedly arranged on the support element and / or counter element or is guided movably parallel to the pressing direction. If the pressure body has a longitudinal direction, the at least one strip extends in particular in the longitudinal direction of the pressure body.
  • a guide device can be provided, through which the at least strip is guided during the deformation of the pressure body.
  • the guide device can comprise one or more guide pins which are fixedly arranged on the support element or counter element and extend therefrom, and corresponding bore (s) in the strip (s) along which the at least one strip can be guided upon deformation of the pressure element ,
  • the at least one cloth can finally, i. be formed with two opposite end portions, or endless.
  • a concrete embodiment of the invention provides that the at least one cloth has two end portions and the at least one pressure body is wrapped in its circumferential direction of the cloth, that the two end portions on a side facing the strip side of the pressure body and are connected thereto.
  • the plurality of pressure bodies can be wrapped together at least in sections by a single cloth.
  • the pressure bodies are wrapped in the circumferential direction of the cloth so that the two end portions on a side facing the bar side of the or the pressure body (s) (s) and are connected thereto.
  • the cloth for example, endlessly formed
  • the plurality of pressure bodies are arranged within the loop of the endlessly formed cloth, wherein between each successive pressure bodies each a top and a lower part comprehensive bar is arranged and wherein the two strip parts respectively opposite sides are arranged outside the cloth loop and the cloth is clamped in each case between successive pressure bodies between the two strip parts.
  • a plurality of wipes are provided, which are arranged one behind the other in the circumferential direction of the pressure hull and wrap each in sections.
  • each of the wipes it is conceivable, for example, for each of the wipes to have two end sections, mutually adjacent end sections of the wipes arranged one behind the other being connected to one another.
  • the pressing unit comprises a plurality of successively arranged pressure body, each of the pressure body is wrapped by a different cloth at least in sections, each cloth comprises two end portions. Furthermore, in this embodiment, in each case a bar is arranged between adjacent pressure bodies and the two end portions of each cloth are each on a facing the bar side of a pressure hull over and are connected to the bar.
  • the strip has at least one upper and one lower part, wherein the protruding end portions of the at least one cloth are clamped between the two strip parts.
  • the strip has at least one upper and one lower part, wherein the protruding end portions of the at least one cloth are clamped between the two strip parts.
  • the strip can be designed in several parts in its longitudinal direction.
  • a further particularly preferred embodiment of the invention provides that the two successively arranged pressure body can be acted upon independently of each other with pressurized fluid.
  • the cloth which at least partially encloses the pressure body in its circumferential direction, to extend over the greater part of the length of the pressure body.
  • the deformable pressure body is formed by a pressure bellows, in particular bellows, or pressure hose.
  • a pressure bellows in particular bellows, or pressure hose.
  • the flexible plastic is in particular an elastomeric plastic.
  • the pressure body at least partially consists of a metal sheet.
  • water, gas, oil or a mixture of at least two of these fluids may be provided as the pressurized fluid.
  • the cloth may comprise a fabric.
  • the fabric may, for example, be formed by metallic threads and / or polymeric threads.
  • the fabric can be embedded in a flexible plastic, which is in particular formed in one piece.
  • a pressing arrangement for Dewatering or smoothing a paper, cardboard, tissue or another fibrous web for a machine for producing and / or finishing the same with at least one, formed by a press roll and a backing roll press nip proposed in which the press roll a fixed support and a relative to rotatable roll shell has, which is pressed on a supported on the carrier press shoe to the counter roll, wherein between the carrier and the press shoe an Anpress unit according to the invention is arranged and the support element is provided by the carrier and the counter element by the press shoe.
  • a plurality of transmission elements arranged one after the other in the cross-machine direction of the press arrangement are arranged between the at least one pressure body and the press shoe.
  • the transmission elements are formed dimensionally stable for good power transmission here, in particular in the pressing direction and are preferably made of steel, aluminum or plastic.
  • the transfer elements are displaceably mounted, in particular in the cross machine direction of the press arrangement.
  • a press arrangement with transmission elements is, for example, in the German patent application with the number 10 2008 000 199.6 described.
  • the at least one pressure body preferably extends with its longitudinal direction in the cross-machine direction of the press arrangement. Furthermore, in particular, the strip extends in the cross-machine direction of the pressing arrangement.
  • two pressure bodies are arranged behind one another in the machine direction of the pressing arrangement, which are in each case wrapped in its circumferential direction by a cloth comprising two end sections, wherein the strip is arranged between the two pressure bodies and the both end portions of each cloth survive each on the side facing the bar side of the pressure hull and are connected to the bar.
  • the machine direction of the pressing arrangement arranged one behind the other extend Pressure body and the strip in the cross machine direction.
  • the pressure bodies arranged one behind the other in the machine direction of the pressing arrangement are preferably independently pressurizable with the pressure fluid.
  • a further embodiment of the invention provides that the pressing direction of the press shoe when pressing the roll shell to the counter roll is determined by at least one guide surface, along which the press shoe is guided, wherein the guide surface extends parallel to the at least one guide pin guiding the at least one strip ,
  • a plurality of pressure bodies are arranged one behind the other in the cross-machine direction of the pressing device, which can be acted upon in particular independently of one another by the pressure fluid.
  • a scraper, guide or stripping device with a scraper, guide or stripping element is proposed, in which the scraper, guide or stripping element by means of a pressing device according to the invention to a, for example.
  • a roller counter surface is adjustable.
  • a suction roll which has a perforated roll shell and an overpressure or underpressure zone, which is sealed against an environmental zone by means of a sealing device acting on the inside of the roll shell.
  • the sealing device in this case comprises a sealing strip mounted in a sealing strip, which is pressed by means of a pressing device according to the invention to the inside of the roll shell, wherein the support element is provided by the sealing strip holder and the counter element by the sealing strip.
  • FIG. 1 shows in cross section a first embodiment of a pressing unit 1 according to the invention, as this example, in a sealing device of a suction roll in a paper, board or tissue machine can be used.
  • the pressing unit 1 has a support element 2 and a counter element 3. Between the support element 2 and the counter element 3 is designed as a pressure hose 4 and deformable pressure body arranged which comprises a loadable with a pressurized fluid cavity 5. The pressure body 4 is supported on the support element 2.
  • the pressure body 4 When the bearing of its cavity 5 with the pressurized fluid is increased in relation to an initial state, the pressure body 4 deforms and increases in a pressing direction 6, whereby the pressure body 4 exerts a greater pressing force on the counterelement 3 than the initial state. With a lowering of the Beaufsachlagung its cavity 5 with the pressurized fluid compared to an initial state, the pressure body 4 is deformed and shrinks in the pressing direction 6 whereby the pressure body 4 exerts on the counter element 3 a relation to the initial state of smaller contact pressure.
  • the pressing unit 1 further has a holding device 7 by means of which the pressure body 4 is held in position during its deformation.
  • the holding device 7 comprises a pressure body 4 looping around and the deformation of the Pressure body 4 permitting cloth 8, through which the pressure body 4 is held during its deformation perpendicular to the pressing direction 6 relative to the support element 2 and counter element 3 at a fixed position.
  • the cloth 8 is fixedly arranged on the support element 2 and fixedly connected to the support element 2 via a clamping gap 9.
  • the cloth 8 has two end portions 10, 11.
  • the pressure body 4 is in this case in its circumferential direction so wrapped by the cloth 8 that the two end portions 10, 11 project on one side of the pressure body 4 and are taken in the nip 9.
  • FIG. 1 A strip firmly attached to the cloth is in FIG. 1 Not shown.
  • FIG. 2 shows in cross section a second embodiment of a pressing unit 101 according to the invention, as this example, in a press arrangement of a paper, board or Tissuemaschine can be used.
  • the pressing unit 101 in viewed perpendicular to the plane of various cross-sectional planes.
  • the pressing unit 101 has a support element 102 and a counter element 103 and at least two deformable pressure elements arranged between the support element 102 and the counter element 103 and designed as pressure bellows 104a, 104b.
  • Each of the two pressure bodies 104a, 104b respectively comprises at least one cavity 105a, 105b which can be acted upon by a pressure fluid, wherein each pressure body 104a, 104b is supported on the support element 102 and opposite to the pressure fluid when the pressure of its cavity 105a, 105b is increased or decreased deformed an initial state and thereby enlarged or reduced in a pressing direction 106.
  • By enlargement or reduction of the Pressure body 104 in the pressing direction 106 exerts this on the counter element 103 a relation to the initial state larger or smaller contact force.
  • the pressing unit 101 shown also has a holding device 107, by means of which the pressure bodies 104a, 104b are held in position during their deformation.
  • the holding device 107 comprises an endless cloth 108 encircling the two pressure bodies 104a, 104b and permitting the deformation of the pressure bodies 104a, 104b and a bar 109 firmly connected to the cloth 108, through which the pressure bodies 104a, 104b are perpendicular to the pressing direction 106 during their deformation held relative to the support member 102 and counter element 103 at a defined position.
  • the strip 109 is disposed between the successively arranged pressure bodies 104a, 104b, the cloth 108 is outside its wrap in the area between the two pressure bodies 104a, 104b connected to the strip 109.
  • the strip 109 has two strip parts, namely an upper strip part 110 and a lower strip part 111.
  • the two pressure bodies 104a, 104b are arranged inside the loop of the endless cloth 108, whereas the two strip parts 110, 111 are thus outside the strip Are arranged loop of the cloth 108 and between the pressure bodies 104a, 104b, that the cloth 108 is clamped in the region between the two pressure bodies 104a, 104b between the two strip parts 110, 111.
  • the endless cloth 108 can be guided movably parallel to the pressing direction 106. This is in particular from the representation of the FIG. 2b seen.
  • the pressing unit 101 comprises a guide means 112, through which the strip 109 is guided parallel to the pressing direction 106 during the deformation of the pressure body 104a, 104b.
  • the guide device 112 has a plurality of guide pins 113 which are arranged one behind the other perpendicular to the plane of the drawing and are arranged on the support element 102.
  • the guide pins 113 extend perpendicularly from the support element 102 viewed in the plane of the drawing.
  • the guide device 112 has bores 114 corresponding to the guide pins 113 in the strip 109, along which the strip 109 can be guided during deformation of the pressure bodies 104a, 104b.
  • the pressure bodies 104a, 104b arranged one behind the other can be acted upon independently of one another by pressurized fluid.
  • the in the FIG. 2 shown pressing unit 101 further comprises in the longitudinal direction of the pressure body a plurality of successively arranged further pressure body, but in the representation of FIG. 2 are not recognizable.
  • These further pressure bodies which are arranged one behind the other in the longitudinal direction, can in particular be acted upon independently of one another by pressurized fluid.
  • the pressure hose 4, 104a, 104b at least partially made of a fiber and / or thread-reinforced deformable plastic. Furthermore, water, gas, oil or a mixture of at least two of these fluids can be provided as the pressurized fluid.
  • the cloth 8, 108 comprise a fabric, which is formed, for example, of metallic threads and / or polymeric threads.
  • the fabric of the cloth 8, 108 may further be embedded in a deformable plastic, which is in particular formed in one piece.
  • FIG. 3 shows a press assembly 120 for dewatering or smoothing a paper, board, tissue or other fibrous web 121 in a machine for making and / or finishing the same.
  • the press arrangement 120 has a press nip 124 formed by a press roll 122 and a counter roll 123.
  • the press roll 122 has a fixed support 125 and a relative thereto rotatable roll shell 126.
  • the roll shell 126 is supported by a supported on the carrier 125 press shoe 127 by means of in the FIG. 2 described pressing unit 101 can be pressed against the counter-roller 123.
  • the pressing unit 101 is disposed between the carrier 125 and the press shoe 127, wherein the in the FIG. 2 described support member 102 by the carrier 125 and in the FIG. 2 described counter element 103 is provided by the press shoe 127.
  • pressure body 104a, 104b are arranged one behind the other in the machine direction MD of the paper, board or tissue machines.
  • machine direction CMD of the machine further pressure bodies are arranged one behind the other, but in the representation of FIG. 3 are not recognizable. All pressure bodies of the pressing unit 101 are in this case acted upon in particular independently of one another with the pressurized fluid.
  • the transmission elements 128 are formed dimensionally stable for good power transmission here, in particular in the pressing direction 106 and are preferably made of steel, aluminum or plastic. In the present case, the transmission elements 128 are displaceably mounted in the cross-machine direction CMD of the press arrangement 120.
  • the pressure bodies 104a, 104b extend with their longitudinal direction in the cross-machine direction CMD of the pressing arrangement 120. Furthermore, the strip 109 also extends in the cross-machine direction of the pressing arrangement.
  • the pressing direction 106 of the press shoe 127 during pressing of the roll mantle 126 against the mating roll 123 is determined by guide surfaces 131, 132, along which the press shoe 127 is guided for pressing the roll mantle 126 against the mating roll 123.
  • Bolts 129 are the ones from FIG. 2 known guide pins 113, through which the strip 109 is guided parallel to the pressing direction 106 during the deformation of the pressure bodies 104a, 104b.

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Description

Die Erfindung betrifft eine Anpresseinheit für eine Papier-, Karton- oder Tissuemaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a pressing unit for a paper, board or tissue machine according to the preamble of claim 1.

In Papier-, Karton- oder Tissuemaschinen finden Anpresseinheiten bspw. in Pressanordnungen Verwendung um den um einen Pressschuh umlaufenden Walzenmantel gegen eine Gegenwalze anzupressen. Anpresseinheiten finden ferner bspw. in Dichteinrichtungen von Saugwalzen Verwendung, um eine Dichtleiste der Dichteinrichtung zur Abdichtung einer Über- oder Unterdruckzone gegenüber einer Umgebungszone gegen den perforierten Walzenmantel anzupressen. Des Weiteren werden Anpresseinheiten in Schaber-, Führungs-oder Abstreifeinrichtungen eingesetzt, um Schaber-, Führungs-oder Abstreifelemente mittels dieser an eine, bspw. durch eine Walze bereitgestellte Gegenfläche anzustellen.In paper, board or tissue machines, for example, press units are used in press arrangements to press the roller shell, which revolves around a press shoe, against a counter roller. Pressing units are also used, for example, in sealing devices of suction rolls, in order to press a sealing strip of the sealing device for sealing an overpressure or underpressure zone against an environmental zone against the perforated roll shell. Furthermore, pressing units are used in scraper, guide or stripping devices in order to set scraper, guide or stripping elements by means of this, for example, provided by a roller counter surface.

Die aus dem Stand der Technik bekannten Anpresseinheiten umfassen hierbei oftmals zumindest einen als Druckschlauch oder Druckbalg ausgebildeten zumindest abschnittweise verformbaren Druckkörper, der wenigstens einen mit einem Druckfluid beaufschlagbaren Hohlraum umfasst. Ein solcher Druckkörper stützt sich auf einem Abstützelement ab und vergrößert bzw. verkleinert sich in Richtung eines Gegenelements bei Erhöhung bzw. Erniedrigung der Beaufschlagung seines Hohlraums mit dem Druckfluid gegenüber einem Ausgangszustand, wodurch auf das Gegenelement eine gegenüber dem Ausgangszustand größere bzw. kleinere Anpresskraft ausgeübt wird.In this case, the pressing units known from the prior art often comprise at least one pressure body designed as a pressure hose or pressure bellows, which is deformable at least in sections and which comprises at least one cavity which can be acted upon by a pressure fluid. Such a pressure body is supported on a support element and increases or decreases in the direction of a counter element in increasing or decreasing the loading of its cavity with the pressurized fluid relative to an initial state, whereby a relative to the initial state larger or smaller contact force is exerted on the counter element ,

Ein solcher aus dem Stand der Technik bekannter Druckkörper weist bspw. einvulkanisierte Bolzen auf, mittels denen dieser gegenüber dem Abstützelement und/oder Gegenelement in Position gehalten wird. Ferner ist aus dem Stand der Technik bekannt, einen Druckkörper mittels festen Führungsflächen, bspw. in Form eines U-Profils, in Position zu halten. Beispiel zur Halterung von Druckkörpern mithilfe eines Bandes finden sich in DE 3030 233 A1 und in W0 00/65152 A1 .Such known from the prior art pressure body has, for example, vulcanized bolts, by means of which this relative to the support element and / or counter element is held in position. Furthermore, it is known from the prior art to hold a pressure body by means of fixed guide surfaces, for example. In the form of a U-profile, in position. Example for holding pressure bodies by means of a band can be found in DE 3030 233 A1 and in W0 00/65152 A1 ,

Bei den Druckkörpern mit einvulkanisierten Bolzen ergeben sich insbesondere am Übergang zwischen Bolzen und Mantelfläche des Druckkörpers oftmals Leckagen. Bei Führung des Druckkörpers durch an diesen angrenzende Führungsflächen, wird oftmals verstärkter Verschleiß der in Kontakt mit den Führungsflächen kommenden Außenflächen des Druckkörpers beobachtet. Zudem ist es oftmals sehr aufwändig solche den Druckkörper bei seiner Verformung in Position haltenden Führungsflächen zu gestalten.In the case of the pressure bodies with vulcanised bolts, leaks often occur, in particular at the transition between the pin and the lateral surface of the pressure hull. When the pressure body is guided by guide surfaces adjacent to it, increased wear of the outer surfaces of the pressure body coming into contact with the guide surfaces is often observed. In addition, it is often very complicated to design such guide surfaces holding the pressure element in position during its deformation.

Es ist daher die Aufgabe der vorliegenden Erfindung eine zumindest einen verformbaren Druckkörper umfassende Anpresseinheit bereitzustellen, bei der der oder die Druckkörper einfacher als bekannt mit geringerer Leckageneigung in Position gehalten werden kann bzw. können.It is therefore the object of the present invention to provide a pressing unit comprising at least one deformable pressure body, in which the pressure body or bodies can be held in position more easily than known with a lower leakage tendency.

Die Aufgabe wird gelöst durch eine Anpresseinheit für eine Papier-, Karton- oder Tissuemaschine, mit einem Abstützelement und einem Gegenelement und zumindest einem zwischen dem Abstützelement und dem Gegenelement angeordneten, zumindest abschnittweise verformbaren Druckkörper, der wenigstens einen mit einem Druckfluid beaufschlagbaren Hohlraum umfasst, wobei sich der Druckkörper auf dem Abstützelement abstützt und sich bei einer Erhöhung bzw. Erniedrigung der Beaufschlagung seines Hohlraums mit dem Druckfluid gegenüber einem Ausgangszustand in einer Pressrichtung vergrößert bzw. verkleinert und hierdurch auf das Gegenelement eine gegenüber dem Ausgangszustand größere bzw. kleinere Anpresskraft ausübt, sowie einer Halteeinrichtung mittels welcher der Druckkörper bei seiner Verformung relativ zu dem Abstützelement und/oder Gegenelement in einer definierten Position gehalten wird.The object is achieved by a pressing unit for a paper, board or Tissuemaschine, with a support element and a counter element and at least one disposed between the support element and the counter element, at least partially deformable pressure body, which comprises at least one acted upon by a pressurized fluid cavity, wherein the pressure body is supported on the support element and increases or decreases with an increase or decrease in the loading of its cavity with the pressure fluid relative to an initial state in a pressing direction and thereby exerts on the counter element a relation to the initial state larger or smaller contact force, and a Holding device by means of which the pressure body is held in its deformation relative to the support element and / or counter element in a defined position.

Die erfindungsgemäße Anpresseinheit ist dadurch gekennzeichnet, dass die Halteeinrichtung ein den zumindest einen Druckkörper zumindest abschnittweise umschlingendes und die Verformung des Druckkörpers zulassendes Tuch umfasst, durch welches der Druckkörper während seiner Verformung in der definierten Position gehalten wird, wobei das zumindest eine Tuch den zumindest einen Druckkörper zum größten Teil umschlingt und wobei die Halte einrichtung ferner zumindest eine fest mit dem Tuch verbundene Leiste umfasst, mittels der das Tuch parallel zur Pressrichtung beweglich geführt ist.The pressing unit according to the invention is characterized in that the holding device at least a section of the at least one pressure body wraps around and the deformation of the pressure hull permitting cloth, by which the pressure body is held during its deformation in the defined position, wherein the at least one cloth wraps around the at least one pressure body for the most part and wherein the holding device further at least one fixed to the cloth Includes bar, by means of which the cloth is guided movable parallel to the pressing direction.

Bei der erfindungsgemäßen Lösung wird der verformbare Druckkörper durch ein den Druckkörper zumindest abschnittweise umschlingendes und die Verformung zulassendes Tuch in Position gehalten. Hierdurch ist es zum Einen nicht mehr nötig, in den Druckkörper Bolzen einzuvulkanisieren, mittels denen dieser bspw. an dem Abstützelement befestigt und in Position gehalten werden kann. Zum Anderen kann auf die den Druckkörper verschleißenden Führungsflächen zur Führung und/oder Halterung des Druckkörpers verzichtet werden.In the solution according to the invention, the deformable pressure body is held in position by a cloth wrapping around the pressure body at least in sections and permitting the deformation. As a result, it is on the one hand no longer necessary to vulcanize bolts in the pressure body, by means of which this example. Can be attached to the support element and held in position. On the other hand, it is possible to dispense with the guide surfaces which wear the pressure body for guiding and / or holding the pressure body.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments and further developments of the invention are specified in the subclaims.

Vorzugsweise wird der Druckkörper senkrecht zur Pressrichtung in Position gehalten. Dies bedeutet, dass während seiner Verformung ein Verschieben der Druckkörpers senkrecht zur Pressrichtung unterbunden ist, d.h. bspw. dass ein Verschieben des Druckkörpers in Maschinenrichtung (MD) und/oder in Maschinenquerrichtung (CMD) während seiner Verformung unterbunden wird.Preferably, the pressure body is held perpendicular to the pressing direction in position. This means that during its deformation a displacement of the pressure hull is suppressed perpendicular to the pressing direction, i. For example, that a displacement of the pressure body in the machine direction (MD) and / or in the cross machine direction (CMD) is prevented during its deformation.

Der zumindest eine Druckkörper ist Von dem zumindest einen Tuch zum größten Teil umschlungen. Hat der Druckkörper bspw. eine Längsrichtung und eine Umfangsrichtung, so ist es von Vorteil, wenn dieser in seiner Umfangsrichtung von dem Tuch zumindest abschnittsweise, insbesondere zum größten Teil, umschlungen ist. Unter der Längsrichtung ist vorliegend die Richtung der größten Ausdehnung des Druckkörpers zu verstehen.The at least one pressure body is wrapped by the at least one cloth for the most part. If, for example, the pressure body has a longitudinal direction and a circumferential direction, then it is advantageous if, in its circumferential direction, it is wrapped around the cloth at least in sections, in particular for the most part. In the present case, the longitudinal direction is understood to be the direction of the greatest extent of the pressure hull.

Die Halteeinrichtung umfasst ferner zumindest eine Leiste, die mit dem Tuch fest verbunden ist bzw. sind und mittels der das Tuch fest an dem Abstützelement und/oder Gegenelement angeordnet oder parallel zur Pressrichtung beweglich geführt ist. Hat der Druckkörper eine Längsrichtung, so erstreckt sich die zumindest eine Leiste insbesondere in Längsrichtung des Druckkörpers.The holding device further comprises at least one bar, which is or are firmly connected to the cloth and by means of which the cloth is fixedly arranged on the support element and / or counter element or is guided movably parallel to the pressing direction. If the pressure body has a longitudinal direction, the at least one strip extends in particular in the longitudinal direction of the pressure body.

Zur beweglichen Führung des Druckkörpers parallel zur Pressrichtung kann bspw. eine Führungseinrichtung vorgesehen sein, durch welche die zumindest Leiste bei der Verformung des Druckkörpers geführt wird. Die Führungseinrichtung kann hierbei einen oder mehrere an dem Abstützelement oder Gegenelement fest angeordnete und sich von diesem erstreckende Führungsstifte und dazu korrespondierende Bohrung(en) in der bzw. den Leiste(n) umfassen, entlang denen die zumindest eine Leiste bei Verformung des Druckkörpers führbar ist.For the movable guidance of the pressure body parallel to the pressing direction, for example, a guide device can be provided, through which the at least strip is guided during the deformation of the pressure body. In this case, the guide device can comprise one or more guide pins which are fixedly arranged on the support element or counter element and extend therefrom, and corresponding bore (s) in the strip (s) along which the at least one strip can be guided upon deformation of the pressure element ,

Es ist sowohl denkbar, dass der zumindest eine Druckkörper von nur einem einzigen Tuch oder dass der zumindest eine Druckkörper von mehreren Tüchern umschlungen wird, die in Umschlingungsrichtung hintereinander angeordnet sind.It is also conceivable that the at least one pressure body of only a single cloth or that the at least one pressure body is wrapped by a plurality of wipes, which are arranged one behind the other in the wrapping direction.

Das zumindest eine Tuch kann endlich, d.h. mit zwei gegenüberliegenden Endabschnitten, oder endlos ausgebildet sein.The at least one cloth can finally, i. be formed with two opposite end portions, or endless.

Eine konkrete Ausgestaltung der Erfindung sieht vor, dass das zumindest eine Tuch zwei Endabschnitte hat und der zumindest eine Druckkörper in seiner Umfangsrichtung so von dem Tuch umschlungen ist, dass die beiden Endabschnitte auf einer zur Leiste weisenden Seite des Druckkörpers überstehen und mit dieser verbunden sind.A concrete embodiment of the invention provides that the at least one cloth has two end portions and the at least one pressure body is wrapped in its circumferential direction of the cloth, that the two end portions on a side facing the strip side of the pressure body and are connected thereto.

Sind bspw. nur ein einziges Tuch aber mehrere hintereinander angeordnete Druckkörper vorgesehen, so können die mehreren Druckkörper gemeinsam von einem einzigen Tuch zumindest abschnittweise umschlungen sein.If, for example, only a single cloth but a plurality of pressure bodies arranged one behind the other are provided, then the plurality of pressure bodies can be wrapped together at least in sections by a single cloth.

In diesem Fall ist es denkbar, dass zwischen aufeinander folgenden Druckkörpern jeweils eine Leiste angeordnet ist, wobei das Tuch alle Druckkörper umschlingt und jeweils außerhalb der Umschlingung im Bereich zwischen aufeinander folgenden Druckkörpern mit der dort jeweils angeordneten Leiste verbunden ist.In this case, it is conceivable that between each successive pressure bodies in each case a bar is arranged, wherein the cloth wraps around all the pressure body and is connected in each case outside the wrap in the area between successive pressure bodies with the there arranged bar.

Ist das Tuch endlich, d.h. hat zwei Endabschnitte, so ist es denkbar, dass die Druckkörper in ihrer Umfangsrichtung so von dem Tuch umschlungen sind, dass die beiden Endabschnitte auf einer zur Leiste weisenden Seite des oder der Druckkörper(s) überstehen und mit dieser verbunden sind.Is the cloth finally, i. has two end portions, it is conceivable that the pressure bodies are wrapped in the circumferential direction of the cloth so that the two end portions on a side facing the bar side of the or the pressure body (s) (s) and are connected thereto.

Ist das Tuch bspw. endlos ausgebildet, so ist es denkbar, dass die mehreren Druckkörper innerhalb der Schleife des endlos ausgebildeten Tuchs angeordnet sind, wobei zwischen aufeinander folgenden Druckkörpern jeweils eine ein Oberteil und ein Unterteil umfassende Leiste angeordnet ist und wobei die beiden Leistenteile jeweils an gegenüberliegenden Seiten außerhalb der Tuchschleife angeordnet sind und das Tuch jeweils im Bereich zwischen aufeinander folgenden Druckkörpern zwischen die beiden Leistenteile eingeklemmt ist.If the cloth, for example, endlessly formed, it is conceivable that the plurality of pressure bodies are arranged within the loop of the endlessly formed cloth, wherein between each successive pressure bodies each a top and a lower part comprehensive bar is arranged and wherein the two strip parts respectively opposite sides are arranged outside the cloth loop and the cloth is clamped in each case between successive pressure bodies between the two strip parts.

Denkbar ist auch, dass mehrere Tücher vorgesehen sind, die in Umfangrichtung des Druckkörpers hintereinander angeordnet sind und diesen jeweils abschnittweise umschlingen. In diesem Fall ist es bspw. denkbar, dass jedes der Tücher zwei Endabschnitte hat, wobei jeweils zueinander benachbarte Endabschnitte der hintereinander angeordneten Tücher miteinander verbunden sind.It is also conceivable that a plurality of wipes are provided, which are arranged one behind the other in the circumferential direction of the pressure hull and wrap each in sections. In this case, it is conceivable, for example, for each of the wipes to have two end sections, mutually adjacent end sections of the wipes arranged one behind the other being connected to one another.

Nach einer weiteren besonders bevorzugten Ausgestaltung der Erfindung umfasst die Anpresseinheit mehrere hintereinander angeordnete Druckkörper, wobei jeder der Druckkörper von einem unterschiedlichen Tuch zumindest abschnittweise umschlungen ist, wobei jedes Tuch zwei Endabschnitte umfasst. Ferner ist bei dieser Ausführungsform jeweils zwischen benachbarten Druckkörpern eine Leiste angeordnet und die beiden Endabschnitte jedes Tuches stehen jeweils auf einer zur Leiste weisenden Seite eines Druckkörpers über und sind mit der Leiste verbunden.According to a further particularly preferred embodiment of the invention, the pressing unit comprises a plurality of successively arranged pressure body, each of the pressure body is wrapped by a different cloth at least in sections, each cloth comprises two end portions. Furthermore, in this embodiment, in each case a bar is arranged between adjacent pressure bodies and the two end portions of each cloth are each on a facing the bar side of a pressure hull over and are connected to the bar.

Vorzugsweise hat die Leiste zumindest ein Ober- und ein Unterteil, wobei die überstehenden Endabschnitte des zumindest einen Tuchs zwischen die beiden Leistenteile geklemmt sind. Hierdurch lässt sich eine einfache Befestigung des Tuches an der Leiste realisieren.Preferably, the strip has at least one upper and one lower part, wherein the protruding end portions of the at least one cloth are clamped between the two strip parts. As a result, a simple attachment of the cloth on the bar can be realized.

Des Weiteren kann die Leiste in ihrer Längsrichtung mehrteilig ausgeführt sein.Furthermore, the strip can be designed in several parts in its longitudinal direction.

Eine weitere besonders bevorzugte Ausführungsform der Erfindung sieht vor, dass die beiden hintereinander angeordneten Druckkörper unabhängig voneinander mit Druckfluid beaufschlagbar sind.A further particularly preferred embodiment of the invention provides that the two successively arranged pressure body can be acted upon independently of each other with pressurized fluid.

Ferner ist es möglich, dass das den Druckkörper in seiner Umfangrichtung zumindest abschnittweise umschlingende Tuch sich auf dem größeren Teil der Länge des Druckkörpers erstreckt.Furthermore, it is possible for the cloth, which at least partially encloses the pressure body in its circumferential direction, to extend over the greater part of the length of the pressure body.

Vorzugsweise ist der verformbare Druckkörper durch einen Druckbalg, insbesondere Faltenbalg, oder Druckschlauch gebildet. Zur Bereitstellung einer ausreichenden Stabilität des Druckbalgs oder Druckschlauchs ist es insbesondere sinnvoll, wenn dieser zumindest teilweise aus einem faser- und/oder fadenverstärkten biegeweichen Kunststoff besteht. Bei dem biegeweichen Kunststoff handelt es sich insbesondere um einen elastomeren Kunststoff. Denkbar ist auch, dass der Druckkörper zumindest teilweise aus einem Metallblech besteht.Preferably, the deformable pressure body is formed by a pressure bellows, in particular bellows, or pressure hose. To provide a sufficient stability of the pressure bellows or pressure hose, it is particularly useful if it consists at least partially of a fiber and / or thread-reinforced flexible plastic. The flexible plastic is in particular an elastomeric plastic. It is also conceivable that the pressure body at least partially consists of a metal sheet.

Als Druckfluid kann bspw. Wasser, Gas, Öl oder ein Gemisch aus zumindest zwei dieser Fluide vorgesehen sein.For example, water, gas, oil or a mixture of at least two of these fluids may be provided as the pressurized fluid.

Zur Bereitstellung einer ausreichenden Stabilität kann das Tuch ein Gewebe umfassen. Hierbei kann das Gewebe bspw. durch metallische Fäden und/oder polymere Fäden gebildet sein. Ferner kann das Gewebe in einen biegeweichen Kunststoff eingebettet sein, der insbesondere einstückig ausgebildet ist.To provide sufficient stability, the cloth may comprise a fabric. In this case, the fabric may, for example, be formed by metallic threads and / or polymeric threads. Furthermore, the fabric can be embedded in a flexible plastic, which is in particular formed in one piece.

Nach einem weiteren Aspekt der Erfindung wird eine Pressanordnung zur Entwässerung oder Glättung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn für eine Maschine zur Herstellung und/oder Veredlung derselben mit wenigstens einem, von einer Presswalze und einer Gegenwalze gebildeten Pressspalt vorgeschlagen, bei der die Presswalze einen feststehenden Träger und einen relativ dazu rotierbaren Walzenmantel besitzt, der über einen sich am Träger abstützenden Pressschuh an die Gegenwalze drückbar ist, wobei zwischen dem Träger und dem Pressschuh eine erfindungsgemäße Anpresseinheit angeordnet ist und das Abstützelement durch den Träger und das Gegenelement durch den Presschuh bereitgestellt wird.According to another aspect of the invention, a pressing arrangement for Dewatering or smoothing a paper, cardboard, tissue or another fibrous web for a machine for producing and / or finishing the same with at least one, formed by a press roll and a backing roll press nip proposed in which the press roll a fixed support and a relative to rotatable roll shell has, which is pressed on a supported on the carrier press shoe to the counter roll, wherein between the carrier and the press shoe an Anpress unit according to the invention is arranged and the support element is provided by the carrier and the counter element by the press shoe.

Denkbar ist in diesem Zusammenhang, dass zwischen dem zumindest einen Druckkörper und dem Pressschuh mehrere in Maschinenquerrichtung der Pressanordnung hintereinander angeordnete Übertragungselemente angeordnet sind. Die Übertragungselemente sind zur guten Kraftübertragung hierbei insbesondere in Pressrichtung formstabil ausgebildet und bestehen vorzugsweise aus Stahl, Aluminium oder Kunststoff. Des weiteren sind die Überteragungselemente insbesondere in Maschinenquerrichtung der Pressanordnung verschiebbar gelagert. Eine Pressanordnung mit Übertragungselementen wird bspw. in der deutschen Patentanmeldung mit der Nummer 10 2008 000 199.6 beschrieben.It is conceivable in this connection that a plurality of transmission elements arranged one after the other in the cross-machine direction of the press arrangement are arranged between the at least one pressure body and the press shoe. The transmission elements are formed dimensionally stable for good power transmission here, in particular in the pressing direction and are preferably made of steel, aluminum or plastic. Furthermore, the transfer elements are displaceably mounted, in particular in the cross machine direction of the press arrangement. A press arrangement with transmission elements is, for example, in the German patent application with the number 10 2008 000 199.6 described.

Vorzugsweise erstreckt sich hierbei der zumindest eine Druckkörper mit seiner Längsrichtung in Maschinenquerrichtung der Pressanordnung. Ferner erstreckt sich insbesondere auch die Leiste in Maschinenquerrichtung der Pressanordnung.In this case, the at least one pressure body preferably extends with its longitudinal direction in the cross-machine direction of the press arrangement. Furthermore, in particular, the strip extends in the cross-machine direction of the pressing arrangement.

Nach einer besonders bevorzugten Ausgestaltung des zweiten Aspekts der Erfindung ist vorgesehen, dass in Maschinenrichtung der Pressanordnung zwei Druckkörper hintereinander angeordnet sind, die insbesondere jeweils von einem zwei Endabschnitte umfassenden Tuch in ihrer Umfangsrichtung umschlungen sind, wobei die Leiste zwischen den beiden Druckkörpern angeordnet ist und die beiden Endabschnitte jedes Tuches jeweils auf der zur Leiste weisenden Seite des Druckkörpers überstehen und mit der Leiste verbunden sind. Vorzugsweise erstrecken sich die in Maschinenrichtung der Pressanordnung hintereinander angeordneten Druckkörper und die Leiste in Maschinenquerrichtung. Vorzugsweise sind die in Maschinenrichtung der Pressanordnung hintereinander angeordneten Druckkörper unabhängig voneinander mit dem Druckfluid beaufschlagbar.According to a particularly preferred embodiment of the second aspect of the invention, it is provided that two pressure bodies are arranged behind one another in the machine direction of the pressing arrangement, which are in each case wrapped in its circumferential direction by a cloth comprising two end sections, wherein the strip is arranged between the two pressure bodies and the both end portions of each cloth survive each on the side facing the bar side of the pressure hull and are connected to the bar. Preferably, the machine direction of the pressing arrangement arranged one behind the other extend Pressure body and the strip in the cross machine direction. The pressure bodies arranged one behind the other in the machine direction of the pressing arrangement are preferably independently pressurizable with the pressure fluid.

Eine weitere Ausgestaltung der Erfindung sieht vor, dass die Pressrichtung des Pressschuhs beim Anpressen des Walzenmantels an die Gegenwalze durch zumindest eine Führungsfläche festgelegt wird, entlang dem der Pressschuh geführt wird, wobei sich die Führungsfläche parallel zu den zumindest einen die zumindest eine Leiste führenden Führungsstift erstreckt.A further embodiment of the invention provides that the pressing direction of the press shoe when pressing the roll shell to the counter roll is determined by at least one guide surface, along which the press shoe is guided, wherein the guide surface extends parallel to the at least one guide pin guiding the at least one strip ,

Des Weiteren ist es denkbar, dass in Maschinenquerrichtung der Pressorndnung mehrere Druckkörper hintereinander angeordnet sind, die insbesondere unabhängig voneinander mit dem Druckfluid beaufschlagbar sind.Furthermore, it is conceivable that a plurality of pressure bodies are arranged one behind the other in the cross-machine direction of the pressing device, which can be acted upon in particular independently of one another by the pressure fluid.

Nach einem dritten Aspekt der Erfindung wird eine Schaber-, Führungs-oder Abstreifeinrichtung mit einem Schaber-, Führungs-oder Abstreifelement vorgeschlagen, bei der das Schaber-, Führungs-oder Abstreifelement mittels einer erfindungsgemäßen Anpresseinrichtung an eine, bspw. durch eine Walze bereitgestellte Gegenfläche anstellbar ist.According to a third aspect of the invention, a scraper, guide or stripping device with a scraper, guide or stripping element is proposed, in which the scraper, guide or stripping element by means of a pressing device according to the invention to a, for example. Provided by a roller counter surface is adjustable.

Nach einem vierten Aspekt der Erfindung wird eine Saugwalze vorgeschlagen, die einen perforierten Walzenmantel und eine Über- oder Unterdruckzone hat, welche mittels einer an der Innenseite des Walzenmantels angreifenden Dichteinrichtung gegen eine Umgebungszone abgedichtet ist. Die Dichteinrichtung umfasst hierbei eine in einem Dichtleistenhalter gelagerte Dichtleiste, die mittels einer erfindungsgemäßen Anpresseinrichtung an die Innenseite des Walzenmantels angepressbar ist, wobei das Abstützelement durch den Dichtleistenhalter und das Gegenelement durch die Dichtleiste bereitgestellt wird.According to a fourth aspect of the invention, a suction roll is proposed which has a perforated roll shell and an overpressure or underpressure zone, which is sealed against an environmental zone by means of a sealing device acting on the inside of the roll shell. The sealing device in this case comprises a sealing strip mounted in a sealing strip, which is pressed by means of a pressing device according to the invention to the inside of the roll shell, wherein the support element is provided by the sealing strip holder and the counter element by the sealing strip.

Die Erfindung wird nachfolgend anhand von schematischen, nicht maßstäblichen zeichnungen weiter erläutert. Es zeigen

Figur 1
eine erste Ausführungsform einer erfindungsgemäßen Anpresseinheit im Querschnitt,
Figur 2
eine zweite Ausführungsform einer erfindungsgemäßen Anpresseinheit im Querschnitt,
Figur 3
eine Pressanordnung zur Entwässerung oder Glättung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn mit der in der Figur 2 gezeigten Anpresseinheit.
The invention will be further elucidated on the basis of schematic, not to scale drawings. Show it
FIG. 1
A first embodiment of an Anpress unit according to the invention in cross-section,
FIG. 2
A second embodiment of an Anpress unit according to the invention in cross-section,
FIG. 3
a press arrangement for dewatering or smoothing a paper, cardboard, tissue or another fibrous web with the in the FIG. 2 shown pressing unit.

Die Figur 1 zeigt im Querschnitt eine erste Ausführungsform einer erfindungsgemäßen Anpresseinheit 1, wie diese bspw. in einer Dichteinrichtung einer Saugwalze in einer Papier-, Karton- oder Tissuemaschine Verwendung finden kann.The FIG. 1 shows in cross section a first embodiment of a pressing unit 1 according to the invention, as this example, in a sealing device of a suction roll in a paper, board or tissue machine can be used.

Die Anpresseinheit 1 hat ein Abstützelement 2 und ein Gegenelement 3. Zwischen dem Abstützelement 2 und dem Gegenelement 3 ist ein als Druckschlauch 4 ausgebildeter und verformbarer Druckkörper angeordnet, der einen mit einem Druckfluid beaufschlagbaren Hohlraum 5 umfasst. Der Druckkörper 4 stützt sich auf dem Abstützelement 2 ab.The pressing unit 1 has a support element 2 and a counter element 3. Between the support element 2 and the counter element 3 is designed as a pressure hose 4 and deformable pressure body arranged which comprises a loadable with a pressurized fluid cavity 5. The pressure body 4 is supported on the support element 2.

Bei einer Erhöhung der Beaufsachlagung seines Hohlraums 5 mit dem Druckfluid gegenüber einem Ausgangszustand verformt sich der Druckkörper 4 und vergrößert sich in einer Pressrichtung 6 wodurch der Druckkörper 4 auf das Gegenelement 3 eine gegenüber dem Ausgangszustand größere Anpresskraft ausübt. Bei einer Erniedrigung der Beaufsachlagung seines Hohlraums 5 mit dem Druckfluid gegenüber einem Ausgangszustand verformt sich der Druckkörper 4 und verkleinert sich in der Pressrichtung 6 wodurch der Druckkörper 4 auf das Gegenelement 3 eine gegenüber dem Ausgangszustand kleinere Anpresskraft ausübt.When the bearing of its cavity 5 with the pressurized fluid is increased in relation to an initial state, the pressure body 4 deforms and increases in a pressing direction 6, whereby the pressure body 4 exerts a greater pressing force on the counterelement 3 than the initial state. With a lowering of the Beaufsachlagung its cavity 5 with the pressurized fluid compared to an initial state, the pressure body 4 is deformed and shrinks in the pressing direction 6 whereby the pressure body 4 exerts on the counter element 3 a relation to the initial state of smaller contact pressure.

Die Anpresseinheit 1 hat ferner eine Halteeinrichtung 7 mittels welcher der Druckkörper 4 während seiner Verformung in Position gehalten wird. Erfindungsgemäß umfasst die Halteeinrichtung 7 ein den Druckkörper 4 umschlingendes und die Verformung des Druckkörpers 4 zulassendes Tuch 8, durch welches der Druckkörper 4 während seiner Verformung senkrecht zur Pressrichtung 6 relativ zum Abstützelement 2 und Gegenelement 3 an einer festen Position gehalten wird.The pressing unit 1 further has a holding device 7 by means of which the pressure body 4 is held in position during its deformation. According to the invention, the holding device 7 comprises a pressure body 4 looping around and the deformation of the Pressure body 4 permitting cloth 8, through which the pressure body 4 is held during its deformation perpendicular to the pressing direction 6 relative to the support element 2 and counter element 3 at a fixed position.

Vorliegend ist das Tuch 8 fest an dem Abstützelement 2 angeordnet und über einem Klemmspalt 9 mit dem Abstützelement 2 fest verbunden.In the present case, the cloth 8 is fixedly arranged on the support element 2 and fixedly connected to the support element 2 via a clamping gap 9.

Vorliegend hat das Tuch 8 zwei Endabschnitte 10, 11. Der Druckkörper 4 ist hierbei in seiner Umfangsrichtung so von dem Tuch 8 umschlungen, dass die beiden Endabschnitte 10, 11 auf einer Seite des Druckkörpers 4 überstehen und in dem Klemmspalt 9 gefasst sind.In the present case, the cloth 8 has two end portions 10, 11. The pressure body 4 is in this case in its circumferential direction so wrapped by the cloth 8 that the two end portions 10, 11 project on one side of the pressure body 4 and are taken in the nip 9.

Vorliegend erstreckt sich ferner das den Druckkörper 4 in seiner Umfangsrichtung umschlingende Tuch 8 auf dem größeren Teil der Länge des Druckkörpers 4, was in der Darstellung der Figur 1 nicht zu erkennen ist, da der Druckkörper 4 in seiner Länge in die Zeichenebene ragt.In the present case further extends the pressure body 4 in its circumferential direction wrapping cloth 8 on the greater part of the length of the pressure hull 4, which in the illustration of FIG. 1 can not be seen, since the pressure body 4 protrudes in its length in the plane of the drawing.

Eine fest mit dem Tuch verbundene Leiste ist in Figur 1 nicht gezeigt.A strip firmly attached to the cloth is in FIG. 1 Not shown.

Die Figur 2 zeigt im Querschnitt eine zweite Ausführungsform einer erfindungsgemäßen Anpresseinheit 101, wie diese bspw. in einer Pressanordnung einer Papier-, Karton- oder Tissuemaschine zum Einsatz kommen kann. Hierbei zeigen die Figuren 2a und 2b die Anpresseinheit 101 in senkrecht zur Zeichenebene betrachteten verschiedenen Querschnittsebenen.The FIG. 2 shows in cross section a second embodiment of a pressing unit 101 according to the invention, as this example, in a press arrangement of a paper, board or Tissuemaschine can be used. Here are the figures 2a and 2 B the pressing unit 101 in viewed perpendicular to the plane of various cross-sectional planes.

Die Anpresseinheit 101 hat ein Abstützelement 102 und ein Gegenelement 103 sowie zumindest zwei zwischen dem Abstützelement 102 und dem Gegenelement 103 angeordnete als Druckbälge 104a, 104b ausgebildete verformbare Druckkörper. Jeder der beiden Druckkörper 104a, 104b umfasst jeweils zumindest einen mit einem Druckfluid beaufschlagbaren Hohlraum 105a, 105b, wobei sich jeder Druckkörper 104a, 104b auf dem Abstützelement 102 abstützt und bei einer Erhöhung bzw. Erniedrigung der Beaufsachlagung seines Hohlraums 105a, 105b mit dem Druckfluid gegenüber einem Ausgangszustand verformt und hierbei in einer Pressrichtung 106 vergrößert bzw. verkleinert. Durch die Vergrößerung bzw. Verkleinerung des Druckkörpers 104 in der Pressrichtung 106 übt dieser auf das Gegenelement 103 eine gegenüber dem Ausgangszustand größere bzw. kleinere Anpresskraft aus.The pressing unit 101 has a support element 102 and a counter element 103 and at least two deformable pressure elements arranged between the support element 102 and the counter element 103 and designed as pressure bellows 104a, 104b. Each of the two pressure bodies 104a, 104b respectively comprises at least one cavity 105a, 105b which can be acted upon by a pressure fluid, wherein each pressure body 104a, 104b is supported on the support element 102 and opposite to the pressure fluid when the pressure of its cavity 105a, 105b is increased or decreased deformed an initial state and thereby enlarged or reduced in a pressing direction 106. By enlargement or reduction of the Pressure body 104 in the pressing direction 106 exerts this on the counter element 103 a relation to the initial state larger or smaller contact force.

Die in der Figur 2 gezeigte Anpresseinheit 101 hat ferner eine Halteeinrichtung 107, mittels der die Druckkörper 104a, 104b während ihrer Verformung in Position gehalten werden. Die Haltevorrichtung 107 umfasst ein die beiden Druckkörper 104a, 104b umschlingendes und die Verformung der Druckkörper 104a, 104b zulassendes endlos ausgebildetes Tuch 108 sowie eine fest mit dem Tuch 108 verbundene Leiste 109, durch welche die Druckkörper 104a, 104b während ihrer Verformung senkrecht zur Pressrichtung 106 relativ zum Abstützelement 102 und Gegenelement 103 an einer definierten Position gehalten werden.The in the FIG. 2 The pressing unit 101 shown also has a holding device 107, by means of which the pressure bodies 104a, 104b are held in position during their deformation. The holding device 107 comprises an endless cloth 108 encircling the two pressure bodies 104a, 104b and permitting the deformation of the pressure bodies 104a, 104b and a bar 109 firmly connected to the cloth 108, through which the pressure bodies 104a, 104b are perpendicular to the pressing direction 106 during their deformation held relative to the support member 102 and counter element 103 at a defined position.

Wie aus der Darstellung der Figur 2 zu erkennen ist, ist die Leiste 109 zwischen den hintereinander angeordneten Druckkörpern 104a, 104b angeordnet, wobei das Tuch 108 außerhalb seiner Umschlingung im Bereich zwischen den beiden Druckkörpern 104a, 104b mit der Leiste 109 verbunden ist.As from the representation of FIG. 2 can be seen, the strip 109 is disposed between the successively arranged pressure bodies 104a, 104b, the cloth 108 is outside its wrap in the area between the two pressure bodies 104a, 104b connected to the strip 109.

Vorliegend hat die Leiste 109 zwei Leistenteile, nämlich ein oberes Leistenteil 110 und ein unteres Leistenteil 111. Wie zu erkennen ist, sind die beiden Druckkörper 104a, 104b innerhalb der Schleife des endlosen Tuchs 108 angeordnet, wohingegen die beiden Leistenteile 110, 111 so außerhalb der Schleife des Tuchs 108 und zwischen den Druckkörpern 104a, 104b angeordnet sind, dass das Tuch 108 im Bereich zwischen den beiden Druckkörpern 104a, 104b zwischen die beiden Leistenteile 110, 111 eingeklemmt ist.In the present case, the strip 109 has two strip parts, namely an upper strip part 110 and a lower strip part 111. As can be seen, the two pressure bodies 104a, 104b are arranged inside the loop of the endless cloth 108, whereas the two strip parts 110, 111 are thus outside the strip Are arranged loop of the cloth 108 and between the pressure bodies 104a, 104b, that the cloth 108 is clamped in the region between the two pressure bodies 104a, 104b between the two strip parts 110, 111.

Vorliegend ist das endlose Tuch 108 parallel zur Pressrichtung 106 beweglich führbar. Dies ist insbesondere aus der Darstellung der Figur 2b ersichtlich.In the present case, the endless cloth 108 can be guided movably parallel to the pressing direction 106. This is in particular from the representation of the FIG. 2b seen.

Wie aus der Darstellung der Figur 2b zu entnehmen ist, umfasst die Anpresseinheit 101 eine Führungseinrichtung 112, durch welche die Leiste 109 bei der Verformung der Druckkörper 104a, 104b parallel zur Pressrichtung 106 geführt wird.As from the representation of FIG. 2b can be seen, the pressing unit 101 comprises a guide means 112, through which the strip 109 is guided parallel to the pressing direction 106 during the deformation of the pressure body 104a, 104b.

Die Führungseinrichtung 112 hat hierzu mehrere senkrecht zur Zeichenebene hintereinander angeordnete Führungsstifte 113, die am Abstützelement 102 angeordnet sind. Die Führungsstifte 113 erstrecken sich hierbei in der Zeichenebene betrachtet senkrecht vom Abstützelement 102. Ferner hat die Führungseinrichtung 112 zu den Führungsstiften 113 korrespondierende Bohrungen 114 in der Leiste 109, entlang denen die Leiste 109 bei Verformung der Druckkörper 104a, 104b führbar ist.For this purpose, the guide device 112 has a plurality of guide pins 113 which are arranged one behind the other perpendicular to the plane of the drawing and are arranged on the support element 102. In this case, the guide pins 113 extend perpendicularly from the support element 102 viewed in the plane of the drawing. Furthermore, the guide device 112 has bores 114 corresponding to the guide pins 113 in the strip 109, along which the strip 109 can be guided during deformation of the pressure bodies 104a, 104b.

Vorliegend sind die hintereinander angeordneten Druckkörper 104a, 104b unabhängig voneinander mit Druckfluid beaufschlagbar.In the present case, the pressure bodies 104a, 104b arranged one behind the other can be acted upon independently of one another by pressurized fluid.

Die in der Figur 2 dargestellte Anpresseinheit 101 umfasst ferner in Längsrichtung der Druckkörper mehrere hintereinander angeordnete weitere Druckkörper, die aber in der Darstellung der Figur 2 nicht zu erkennen sind. Diese in Längsrichtung hintereinnander angeordneten weiteren Druckkörper sind insbesondere unabhängig voneinander mit Druckfluid beaufschlagbar.The in the FIG. 2 shown pressing unit 101 further comprises in the longitudinal direction of the pressure body a plurality of successively arranged further pressure body, but in the representation of FIG. 2 are not recognizable. These further pressure bodies, which are arranged one behind the other in the longitudinal direction, can in particular be acted upon independently of one another by pressurized fluid.

Bei den in den Figuren 1 und 2 dargestellten Anpresseinheiten 1, 101 können die Druckschläuch 4, 104a, 104b zumindest teilweise aus einem faser- und/oder fadenverstärkten verformbaren Kunststoff bestehen. Ferner kann als Druckfluid Wasser, Gas, Öl oder ein Gemisch aus zumindest zwei dieser Fluide vorgesehen sein.In the in the FIGS. 1 and 2 illustrated Anpresseinheiten 1, 101, the pressure hose 4, 104a, 104b at least partially made of a fiber and / or thread-reinforced deformable plastic. Furthermore, water, gas, oil or a mixture of at least two of these fluids can be provided as the pressurized fluid.

Des weiteren kann das Tuch 8, 108 ein Gewebe umfassen, welches bspw. aus metallischen Fäden und/oder polymeren Fäden gebildet ist. Das Gewebe des Tuchs 8, 108 kann ferner in einen verformbaren Kunststoff eingebettet sein, welcher insbesondere einstückig ausgebildet ist.Furthermore, the cloth 8, 108 comprise a fabric, which is formed, for example, of metallic threads and / or polymeric threads. The fabric of the cloth 8, 108 may further be embedded in a deformable plastic, which is in particular formed in one piece.

Die Figur 3 zeigt eine Pressanordnung 120 zur Entwässerung oder Glättung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn 121 in einer Maschine zur Herstellung und/oder Veredlung derselben. Die Pressanordnung 120 hat einem von einer Presswalze 122 und einer Gegenwalze 123 gebildeten Pressspalt 124.The FIG. 3 shows a press assembly 120 for dewatering or smoothing a paper, board, tissue or other fibrous web 121 in a machine for making and / or finishing the same. The press arrangement 120 has a press nip 124 formed by a press roll 122 and a counter roll 123.

Die Presswalze 122 hat einen feststehenden Träger 125 und einen relativ dazu rotierbaren Walzenmantel 126. Der Walzenmantel 126 ist über einen sich am Träger 125 abstützenden Pressschuh 127 mittels der in der Figur 2 beschriebenen Anpresseinheit 101 an die Gegenwalze 123 drückbar.The press roll 122 has a fixed support 125 and a relative thereto rotatable roll shell 126. The roll shell 126 is supported by a supported on the carrier 125 press shoe 127 by means of in the FIG. 2 described pressing unit 101 can be pressed against the counter-roller 123.

Hierzu ist die Anpresseinheit 101 zwischen dem Träger 125 und dem Pressschuh 127 angeordnet, wobei das in der Figur 2 beschriebene Abstützelement 102 durch den Träger 125 und das in der Figur 2 beschriebene Gegenelement 103 durch den Presschuh 127 bereitgestellt wird.For this purpose, the pressing unit 101 is disposed between the carrier 125 and the press shoe 127, wherein the in the FIG. 2 described support member 102 by the carrier 125 and in the FIG. 2 described counter element 103 is provided by the press shoe 127.

Die beiden in der Darstellung der Figur 3 zu erkennenen Druckkörper 104a, 104b sind in Maschinenrichtung MD der Papier-, Karton- oder Tissuemaschinen hintereinander angeordnet. In Maschinenquerrichtung CMD der Maschine sind weitere Druckkörper hintereinander angeordnet, die aber in der Darstellung der Figur 3 nicht zu erkennen sind. Alle Druckkörper der Anpresseinheit 101 sind hierbei insbesondere unabhängig voneinander mit dem Druckfluid beaufschlagbar.The two in the presentation of FIG. 3 to be recognized pressure body 104a, 104b are arranged one behind the other in the machine direction MD of the paper, board or tissue machines. In machine direction CMD of the machine further pressure bodies are arranged one behind the other, but in the representation of FIG. 3 are not recognizable. All pressure bodies of the pressing unit 101 are in this case acted upon in particular independently of one another with the pressurized fluid.

Zwischen den Druckkörpern 104a, 104b und dem Pressschuh 127 sind mehrere in Maschinenquerrichtung CMD der Pressanordnung 120 hintereinander angeordnete Übertragungselemente 128 angeordnet. Die Übertragungselemente 128 sind zur guten Kraftübertragung hierbei insbesondere in Pressrichtung 106 formstabil ausgebildet und bestehen vorzugsweise aus Stahl, Aluminium oder Kunststoff. Vorliegend sind die Übertragungselemente 128 in Maschinenquerrichtung CMD der Pressanordnung 120 verschiebbar gelagert.Between the pressure bodies 104a, 104b and the pressure shoe 127, a plurality of transmission elements 128 arranged one behind the other in the cross-machine direction CMD of the pressing arrangement 120 are arranged. The transmission elements 128 are formed dimensionally stable for good power transmission here, in particular in the pressing direction 106 and are preferably made of steel, aluminum or plastic. In the present case, the transmission elements 128 are displaceably mounted in the cross-machine direction CMD of the press arrangement 120.

Die Druckkörper 104a, 104b erstrecken sich mit ihrer Längsrichtung in Maschinenquerrichtung CMD der Pressanordnung 120. Ferner erstreckt sich auch die Leiste 109 in Maschinenquerrichtung der Pressanordnung.The pressure bodies 104a, 104b extend with their longitudinal direction in the cross-machine direction CMD of the pressing arrangement 120. Furthermore, the strip 109 also extends in the cross-machine direction of the pressing arrangement.

Bei der in der Figur 3 dargestellten Pressanordnung 120 wird die Pressrichtung 106 des Pressschuhs 127 beim Pressen des Walzenmantels 126 an die Gegenwalze 123 durch Führungsflächen 131, 132 festgelegt, entlang denen der Pressschuh 127 zum Pressen des Walzenmantels 126 an die Gegenwalze 123 geführt wird.When in the FIG. 3 1, the pressing direction 106 of the press shoe 127 during pressing of the roll mantle 126 against the mating roll 123 is determined by guide surfaces 131, 132, along which the press shoe 127 is guided for pressing the roll mantle 126 against the mating roll 123.

Ferner sind mehrere sich in Pressrichtung 106 erstreckende Bolzen 129 vorgesehen.Furthermore, a plurality of bolts 129 extending in the pressing direction 106 are provided.

Die Bolzen 129 stellen die aus der Figur 2 bekannten Führungsstifte 113 bereit, durch welche die Leiste 109 bei der Verformung der Druckkörper 104a, 104b parallel zur Presssrichtung 106 geführt wird.Bolts 129 are the ones from FIG. 2 known guide pins 113, through which the strip 109 is guided parallel to the pressing direction 106 during the deformation of the pressure bodies 104a, 104b.

Claims (24)

  1. Press-on unit (1, 101) for a paper, cardboard or tissue machine, having a supporting element (2, 102) and a mating element (3, 103) and at least one pressure body (4, 104a, 104b) which is deformable at least in sections, is arranged between the supporting element (2, 102) and the mating element (3, 103) and comprises at least one cavity (5, 105a, 105b) which can be loaded with a pressure fluid, the pressure body (4, 104a, 104b) being supported on the supporting element (2, 102) and deforming with respect to an initial state in the event of an increase or decrease in the loading of its cavity with the pressure fluid, and increasing or decreasing in size in a pressing direction (6, 106) as a result, as a result of which the said pressure body (4, 104a, 104b) exerts a press-on force on the mating element (3, 103), which press-on force is greater or smaller in comparison with the initial state, and having a holding device (7, 107), by means of which the pressure body (4, 104a, 104b) is held, during its deformation, in a defined position relative to the supporting element (2, 102) and/or mating element (3, 103), the holding device (7, 107) comprising a blanket (8, 108) which wraps around at least one pressure body (4, 104a, 104b) at least in sections, permits the deformation of the pressure body, and by way of which the pressure body (4, 104a, 104b) is held in the defined position during its deformation, characterized in that the at least one blanket (8, 108) wraps around the greatest part of the at least one pressure body (4, 104a, 104b), and in that, furthermore, the holding device (7, 107) comprises at least one bar (109) which is connected fixedly to the blanket (8, 108) and by means of which the blanket (8, 108) is guided movably parallel to the pressing direction (6, 106).
  2. Press-on unit according to Claim 1, characterized in that the pressure body (4, 104a, 104b) is held in position perpendicularly with respect to the pressing direction (6, 106).
  3. Press-on unit according to one of the preceding claims, characterized in that the at least one blanket (8, 108) is of finite or endless configuration.
  4. Press-on unit according to one of the preceding claims, characterized in that the at least one blanket (8, 108) has two end sections (10, 11) and the at least one pressure body (4, 104a, 104b) is wrapped around in its circumferential direction by the blanket in such a way that the two end sections (10, 11) project on that side of the pressure body which points towards the bar (109) and are connected to the latter.
  5. Press-on unit according to one of the preceding claims, characterized in that a plurality of pressure bodies (4, 104a, 104b) are arranged one behind another, the plurality of pressure bodies being wrapped around jointly by a single blanket (8, 108) at least in sections.
  6. Press-on unit according to one of the preceding claims, characterized in that a plurality of pressure bodies (4, 104a, 104b) are arranged one behind another, each of the pressure bodies being wrapped around by a different blanket (8, 108) at least in sections.
  7. Press-on unit according to one of the preceding claims, characterized in that the bar (109) has at least one upper part (110) and one lower part (111) and the projecting end sections (10, 11) of the at least one blanket (8, 108) are clamped between the two bar parts.
  8. Press-on unit according to one of the preceding claims, characterized in that the bar (109) is of multiple-piece configuration in its longitudinal direction.
  9. Press-on unit according to one of the preceding Claims 5 to 8, characterized in that the pressure bodies which are arranged one behind another can be loaded with pressure fluid independently of one another.
  10. Press-on unit according to one of the preceding claims, characterized in that the blanket which wraps around the at least one pressure body in its circumferential direction at least in sections extends over the majority of the length of the pressure body.
  11. Press-on unit according to one of the preceding claims, characterized in that a guide device is provided, by way of which the bar is guided during the deformation of the pressure body.
  12. Press-on unit according to Claim 11, characterized in that the guide device comprises one or more guide pins, which are arranged on the supporting or mating element and extend from the latter, and a hole or holes in the bar which correspond to the said guide pins, along which the bar can be guided during deformation of the pressure body.
  13. Press-on unit according to one of the preceding claims, characterized in that the pressure body is formed by a pressure bellows, in particular a folding bellows, or a pressure hose.
  14. Press-on unit according to Claim 13, characterized in that the pressure bellows or pressure hose is composed at least partially of a fibre-reinforced and/or thread-reinforced deformable plastic.
  15. Press-on unit according to one of the preceding claims, characterized in that water, gas, oil or a mixture of at least two of the said fluids is provided as pressure fluid.
  16. Press-on unit according to one of the preceding claims, characterized in that the blanket comprises a woven fabric.
  17. Press-on unit according to Claim 16, characterized in that the woven fabric is formed by metallic threads and/or polymer threads.
  18. Press-on unit according to Claim 16 or 17, characterized in that the woven fabric is embedded into a deformable plastic which is, in particular, of single-piece configuration.
  19. Press arrangement for dewatering or calendering a paper, cardboard, tissue or another fibrous web for a machine for producing and/or finishing the said web having at least one pressure nip which is formed by a press roll and a mating roll, the press roll having a stationary carrier and a roll shell which can be rotated relative to the former and can be pressed against the mating roll via a press shoe which is supported on the carrier, a press-on unit according to one of Claims 1 to 18 being arranged between the carrier and the press shoe, and the supporting element being provided by the carrier and the mating element being provided by the press shoe.
  20. Press arrangement according to Claim 19, characterized in that two pressure bodies are arranged one behind another in the machine direction of the press arrangement, which pressure bodies are wrapped around in their circumferential direction in each case by a blanket which comprises two end sections, the bar being arranged between the two pressure bodies, and the two end sections of each blanket projecting in each case on that side of the pressure body which points towards the bar and being connected to the bar.
  21. Press arrangement according to Claim 19 or 20, characterized in that, during pressing of the roll shell against the mating roll, the pressing direction of the press shoe is fixed by at least one guide face, along which the press shoe is guided, the guide face extending parallel to at least one guide pin which guides the at least one bar in the pressing direction.
  22. Press arrangement according to one of the preceding Claims 19 to 21, characterized in that a plurality of pressure bodies are arranged one behind another in the transverse machine direction of the press arrangement, which pressure bodies can be loaded with the pressure fluid, in particular independently of one another.
  23. Doctor, guide or wiping device having a doctor, guide or wiping element which can be set against a mating surface, which is provided, for example, by a roll, and can be moved away from it again by means of a press-on device according to one of Claims 1 to 18.
  24. Suction roll having a perforated roll shell and a positive or negative pressure zone which is sealed with respect to a surrounding zone by means of a sealing device which acts on the inner side of the roll shell, the sealing device comprising a sealing strip which is mounted in a sealing-strip holder and is pressed against the inner side of the roll shell by means of a press-on device according to one of Claims 1 to 21, the supporting element being provided by the sealing-strip holder and the mating element being provided by the sealing strip.
EP09781729A 2008-09-15 2009-08-12 Press-on unit for a paper, cardboard, or tissue machine Not-in-force EP2329076B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810042087 DE102008042087A1 (en) 2008-09-15 2008-09-15 Pressing unit for a paper, board or tissue machine
PCT/EP2009/060412 WO2010028923A1 (en) 2008-09-15 2009-08-12 Press-on unit for a paper, cardboard, or tissue machine

Publications (2)

Publication Number Publication Date
EP2329076A1 EP2329076A1 (en) 2011-06-08
EP2329076B1 true EP2329076B1 (en) 2013-03-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09781729A Not-in-force EP2329076B1 (en) 2008-09-15 2009-08-12 Press-on unit for a paper, cardboard, or tissue machine

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EP (1) EP2329076B1 (en)
CN (1) CN102159766B (en)
DE (1) DE102008042087A1 (en)
WO (1) WO2010028923A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010017343U1 (en) * 2010-07-01 2011-11-28 Voith Patent Gmbh pressure hose
DE102011075806A1 (en) * 2011-05-13 2012-11-15 Voith Patent Gmbh sealing arrangement
PL2602387T3 (en) 2011-12-07 2017-01-31 Valmet Aktiebolag A paper making machine, an extended nip roll and a method of producing tissue paper
BR112014025803B1 (en) * 2012-04-19 2021-09-08 Valmet Aktiebolag Elongated Squeeze Roller, Elongated Squeeze PRESS USING THE Elongated Squeeze ROLLER, PAPER MAKING MACHINE AND METHOD OF OPERATING AN Elongated Squeeze PRESS
EP2808442B1 (en) * 2013-05-29 2015-11-18 Andritz Küsters GmbH Apparatus for forming an extended nip

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030233C2 (en) * 1980-08-09 1988-10-20 J.M. Voith Gmbh, 7920 Heidenheim Wet press for dewatering fiber webs
DE4009627A1 (en) * 1990-03-26 1991-10-10 Voith Gmbh J M PERFORMANCE SUPPLY SUPPORT FOR A SCREENING BELT
FI113788B (en) * 1999-04-14 2004-06-15 Metso Paper Pori Oy Press
DE10110946A1 (en) * 2001-03-07 2002-09-12 Voith Paper Patent Gmbh seal means
US6786999B2 (en) * 2001-04-18 2004-09-07 Kadant Web Systems, Inc. Doctor blade holder
CN100348799C (en) * 2002-08-30 2007-11-14 埃杜阿德库斯特斯机器厂两合公司 Long roll gap roll sequeezer for fibre fabric dewatering
DE10351294A1 (en) * 2003-10-31 2005-06-02 Voith Paper Patent Gmbh pressing device
DE102008000199A1 (en) * 2008-01-31 2009-08-06 Voith Patent Gmbh pressing unit

Also Published As

Publication number Publication date
EP2329076A1 (en) 2011-06-08
CN102159766A (en) 2011-08-17
WO2010028923A1 (en) 2010-03-18
CN102159766B (en) 2013-03-27
DE102008042087A1 (en) 2010-03-18

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