EP1870515A1 - Machine frame - Google Patents

Machine frame Download PDF

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Publication number
EP1870515A1
EP1870515A1 EP07104203A EP07104203A EP1870515A1 EP 1870515 A1 EP1870515 A1 EP 1870515A1 EP 07104203 A EP07104203 A EP 07104203A EP 07104203 A EP07104203 A EP 07104203A EP 1870515 A1 EP1870515 A1 EP 1870515A1
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EP
European Patent Office
Prior art keywords
machine
transfer belt
press
support
foundation
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Granted
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EP07104203A
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German (de)
French (fr)
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EP1870515B1 (en
Inventor
Joachim Dr. Grabscheid
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Voith Patent GmbH
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Voith Patent GmbH
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Publication of EP1870515A1 publication Critical patent/EP1870515A1/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/001—Wire-changing arrangements
    • 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
    • D21F3/04—Arrangements thereof

Definitions

  • the invention relates to a machine frame of a press section for dewatering a paper, board, tissue or other fibrous web in a machine for producing and / or finishing same, wherein the press section comprises a plurality of separate press nips formed by press rolls, the ends of the press rolls respectively are stored in a drive- and leader-side support structure of the machine frame and at least one water-absorbing and endless circulating dewatering belt is guided through this press nip next to the fibrous web, a dewatering belt and an endless transfer belt running through a press nip.
  • the invention also relates to a method for changing an endless transfer belt of a machine with a machine chair.
  • the press section has a drive and a driver-side support structure.
  • a plurality of pressing and guide rollers are mounted, which are arranged in various configurations relative to each other.
  • An essential part of the press section is formed by water-absorbing drainage tapes including their guidance and conditioning. Since these drainage tapes must be replaced frequently, sufficient accessibility must be ensured.
  • the object of the invention is therefore to provide a stable and structurally simple machine chair, which allows the best possible accessibility and a gentle change of the transfer belt.
  • this object is achieved in that all drainage tapes have openable and closable transverse seams and the supporting construction comprises only intermediate pieces which are to be removed for the infeed of the transfer belt.
  • the transverse seams can be opened and the band parts are led out of the machine individually.
  • the assembly is easy by the band parts individually fed into the machine and the transverse seams are closed.
  • Removable intermediate pieces are only available for the change of the transfer belt in the area of the corresponding press roll.
  • an inner running rail for a carriage should extend between the supporting structures close to and parallel to the press roll, which is looped around by the transfer belt.
  • the advantages can be optimized in terms of a material and weight-saving support structure, if in at least one, preferably a plurality of support structures, the support beams are connected in a, each lying in the machine direction plane together so that arise between these triangular spaces.
  • the triangular free spaces should be predominantly, preferably exclusively, above the machine foundation.
  • the triangular free spaces should be at least 1 m, preferably at least 1.5 m above the machine foundation.
  • the support beams forming a corner of a triangular free space that form the foundation of the machine are connected to one end of a support beam extending vertically and preferably supported on the machine foundation.
  • the supporting structures should extend over at least part of the press section with a plurality of press nips, preferably over the entire press section.
  • Each support structure with these triangular free spaces is formed so completely or largely in one piece in the longitudinal direction of the machine.
  • integrally means that these may well consist of two or more subassemblies, provided that these subassemblies are joined together so stably that a rigidity arises, as with a single component.
  • the stability of the machine chair can be increased by connecting the supporting structures to one another via crossbeams.
  • the guide carrier has an axially extending to the press roller, outer track, which continues in the machine via inner track, wherein on the outer track rail a carriage for Receiving and guiding the transfer belt is located, which drives the transfer belt after the removal of the intermediate pieces in the machine.
  • the transfer belt can be prepared unrequited in its entire width outside the machine on the tape change.
  • the retraction of the transfer belt by means of the carriage in the region of the inner track designed much easier.
  • the press roller can be held on the guide support, so that no Cantilever- or cross member is required for the Supporteile this press roll. This not only reduces the effort, but also the burden on the building structure.
  • the outer end of the guide carrier should be attached to a crane.
  • the transfer belt should be brought after fixing on the carriage over axially extending to the press roller draping into a shape corresponding approximately to the course in the machine.
  • the drapery tubes can be fastened with advantage on the guide support.
  • the release of the intermediate pieces can be done relatively easily via the lifting of the guide support after loosening corresponding connections in the machine frame.
  • the guide carrier can be lifted with advantage over the crane or via a lifting element supported on the foundation.
  • the guide carrier should preferably be connected to the guide part of the machine with the support part.
  • the press section shown in FIG. 1 comprises two press nips which are formed by two press rolls 4 pressed together in each case.
  • the separate press roller pairs are supported at the ends of support parts in the form of a foundation 5, which is supported on the machine foundation 16.
  • the fibrous web 1 runs on both sides with a respective dewatering belt 11, 12.
  • the fibrous web 1 is guided by an upper dewatering belt 14 and a lower, smooth and impermeable transfer belt 13 through the second press nip.
  • the drainage tapes 11,12,14 are carried out as water-absorbing press felts.
  • the upper dewatering belt 12 of the first press nip takes over the fibrous web 1 from a forming wire 10 of an upstream former for sheet formation.
  • the fibrous web 1 runs together with both dewatering belts 11, 12 before the upper dewatering belt 12 is led away. From the sole leading lower dewatering belt 11, the fibrous web 1 is then transferred to the upper dewatering belt 14 of the second press nip.
  • the lower transfer belt 13 guides the fibrous web 1 until it is taken over by a drying wire 15 of a following drying section for drying the fibrous web 1.
  • the fibrous web 1 is supported by the drying wire 15, alternately guided over heated drying cylinders 9 and suctioned guide rollers 18. Die Trocknungszylinder 9 Sind in denget Items 9 anry.
  • the dewatering belts 11, 12, 14 and the transfer belt 13 are guided past the press nips via guide rollers 7, 8 and to conditioning devices 18 for cleaning and dewatering the belts.
  • the upper dewatering belts 12, 14 run horizontally in the region of the corresponding conditioning devices 18 and approximately at the same height above the machine foundation 16.
  • the machine chair On the drive and guide side, the machine chair is each formed by supporting structure, which is composed of stringers 2 and foundations 5.
  • the supporting beams 2 are in a plane lying in the machine running direction 6 with each other are connected, that arise between these triangular spaces 3. These and other free spaces greatly enhance the accessibility of the machine.
  • cross member 22 To stabilize the supporting structures via cross member 22 are interconnected.
  • the free spaces 3 have here the shape of an acute-angled triangle.
  • the machine foundation 16 facing corner of the triangular space 3 forming support beams 2 connected to one end of a vertically extending and preferably supported on the machine foundation 16 support beam 2. In this way, at this corner of the triangle results in a y-shaped connection of the support beams. 2
  • the support structure contains no intermediate pieces 28 o. ⁇ ., Which would normally facilitate the change of the drainage tapes 11,12,14. This makes a very stable construction of the machine chair possible.
  • the acting as tension rollers guide rollers 8 of the upper dewatering belts 12,14 are mounted on the upper support beam.
  • the Clamping direction of acting as tension rollers guide rollers 8 of the adjacent, upper dewatering belts 12,14 opposite to increase the compactness.
  • FIGS. 2 to 5 to simplify the illustration of the band changing method, only one press roller pair is shown, wherein the press rollers 4 are mounted on both sides in the machine frame, which is supported on the machine foundation 16.
  • the fibrous web 1 is guided together with an upper water-absorbing dewatering belt 14 and a lower, smooth, impermeable belt 13.
  • the machine chair On the driver's side, the machine chair comprises separate support parts 20, 21 for supporting the press rollers 4. These support parts 20, 21 are spaced apart and supported separately.
  • the support parts 20,21 the leader are connected via axially extending to the press roll 4 cross member 22 with the opposite machine frame.
  • the belts 13, 14 are guided over guide rollers 7.
  • the endless circulating transfer belt 13 is not only seamless, but also smooth and therefore not gatherable, this is performed here with a special changing device in the machine.
  • the old transfer belt 13 to be changed can be easily separated and removed from the machine.
  • This carriage 25 carries the new transfer belt 13, which is fixed on a winding tube on the unwinding of the carriage 25.
  • the transfer belt 13 can be brought about axially extending to the press roller 4 Drapierrohre in an approximately the course in the machine corresponding shape.
  • the drapery tubes can be easily attached to the guide bracket 23.
  • the transfer belt 13 Since the guide carrier 23 extends over the entire width of the transfer belt 13, the transfer belt 13 does not have to be gathered, which in particular protects the smooth surface of the transfer belt 13.
  • the carriage 25 consists here of a part of each carriage at each end of the transfer belt 13th
  • the free end of the guide carrier 23 can subsequently be raised, which allows the removal of the intermediate pieces 28.
  • the carriage 25 After mounting the transfer belt 13 in the machine, the carriage 25 can be driven out of the machine and removed together with the guide support 23.
  • the support structure formed by the support beam 2 can be constructed very stable and simple.

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  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

All de-watering belts (11, 12, 14) include transverse seams which can be opened and closed. The load carrying structure has an intermediate section removed only to draw in the transfer belt (13). The support structure includes support beams (2) and foundations (5). The pressing roller (4) wrapped by the transfer belt (15) is supported by a foundation (5). The support beams (2) are connected together by a removable intermediate section. Between support structures, an internal rail for a carriage runs close and parallel to the pressing roller (4) wrapped by the transfer belt (13). With at least one, preferably several support structures, the support beams (2) are connected in a plane in the machine running direction (6) such that triangular open spaces (3) arise between them. A corner of the support beam forming a triangular open space and pointing to the machine foundation (16), is connected to an end of a support beam running at right angles and preferably supported on the machine foundation. The support structures extend over part of the pressing section with several pressing nips, preferably over the entire pressing section. Transverse supports interconnect the support structures. The transfer belt (13) runs below the fibrous web (1). An independent claim IS INCLUDED FOR the corresponding method of changing the transfer belt.

Description

Die Erfindung betrifft eine Maschinenstuhlung einer Pressenpartie zur Entwässerung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben, wobei die Pressenpartie mehrere separate, von Presswalzen gebildete Pressspalte umfasst, die Enden der Presswalzen jeweils in einer trieb- und führerseitigem Tragkonstruktion der Maschinenstuhlung gelagert sind und durch diese Pressspalte neben der Faserstoffbahn zumindest ein wasseraufnehmendes und endlos umlaufendes Entwässerungsband geführt ist, wobei durch einen Pressspalt ein Entwässerungsband und ein endloses Transferband läuft.The invention relates to a machine frame of a press section for dewatering a paper, board, tissue or other fibrous web in a machine for producing and / or finishing same, wherein the press section comprises a plurality of separate press nips formed by press rolls, the ends of the press rolls respectively are stored in a drive- and leader-side support structure of the machine frame and at least one water-absorbing and endless circulating dewatering belt is guided through this press nip next to the fibrous web, a dewatering belt and an endless transfer belt running through a press nip.

Die Erfindung betrifft auch ein Verfahren zum Wechseln eines endlosen Transferbandes einer Maschine mit einer Maschinenstuhlung.The invention also relates to a method for changing an endless transfer belt of a machine with a machine chair.

Die Pressenpartie weist wie alle anderen Baugruppen der Maschine eine trieb- und eine führerseitige Tragkonstruktion auf. In diesen Tragkonstruktionen sind eine Vielzahl von Press- und Leitwalzen gelagert, die in verschiedenartigen Konfigurationen relativ zueinander angeordnet sind.Like all other components of the machine, the press section has a drive and a driver-side support structure. In these supporting structures, a plurality of pressing and guide rollers are mounted, which are arranged in various configurations relative to each other.

Ein wesentlicher Bestandteil der Pressenpartie wird von wasseraufnehmenden Entwässerungsbändern inklusive deren Führung und Konditionierung gebildet. Da diese Entwässerungsbänder des öfteren ausgewechselt werden müssen, ist eine ausreichende Zugänglichkeit zu gewährleisten.An essential part of the press section is formed by water-absorbing drainage tapes including their guidance and conditioning. Since these drainage tapes must be replaced frequently, sufficient accessibility must be ensured.

Wegen der hohen Maschinengeschwindigkeiten und der großen Arbeitsbreiten nimmt die Gefahr von Eigenschwingungen der Maschinenstuhlung zu. Daher wird andererseits aber eine sehr stabile und kompakte Maschinenstuhlung angestrebt.Due to the high machine speeds and the large working widths, the risk of natural vibration of the machine chair increases. Therefore, on the other hand, however, a very stable and compact machine chair is desired.

Des öfteren befindet sich in den Pressenpartien meist am Ende wenigstens ein endloses Transferband. Dieses überwiegend glatte und impermeable Band dient zur Verbesserung der Oberflächenqualität der Faserstoffbahn. Ein Wechsel dieses Bandes ist relativ aufwendig und belastet das neue Band selbst.Often located in the press sections usually at the end of at least one endless transfer belt. This mostly smooth and impermeable band serves for Improvement of the surface quality of the fibrous web. A change of this band is relatively expensive and burdened the new band itself.

Die Aufgabe der Erfindung ist daher die Schaffung einer stabilen und konstruktiv einfachen Maschinenstuhlung, die eine möglichst gute Zugänglichkeit und einen schonenden Wechsel des Transferbandes ermöglicht.The object of the invention is therefore to provide a stable and structurally simple machine chair, which allows the best possible accessibility and a gentle change of the transfer belt.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass alle Entwässerungsbänder öffen- und schließbare Quernähte besitzen und die Tragkonstruktion nur Zwischenstücke umfasst, die für den Einzug des Transferbandes zu entfernen sind.According to the invention, this object is achieved in that all drainage tapes have openable and closable transverse seams and the supporting construction comprises only intermediate pieces which are to be removed for the infeed of the transfer belt.

Durch die ausschließliche Verwendung von Entwässerungsbändern mit öffen- und schließbaren Quernähten vereinfacht sich der Wechsel der Entwässerungsbänder erheblich.The exclusive use of drainage belts with openable and closable cross seams simplifies the change of drainage belts considerably.

Falls ein Bandwechsel erforderlich ist, so können die Quernähte geöffnet und die Bandteile einzeln aus der Maschine geführt werden.If a band change is required, then the transverse seams can be opened and the band parts are led out of the machine individually.

Auch die Montage gestaltet sich einfach, indem die Bandteile einzeln in die Maschine geführt und die Quernähte geschlossen werden.Also, the assembly is easy by the band parts individually fed into the machine and the transverse seams are closed.

Ein derartiger Wechsel des Bandes bei geschlossener Tragkonstruktion ist wesentlich einfacher und schneller durchzuführen.Such a change of the tape with the support structure closed is much easier and faster to perform.

Auch herausnehmbare Zwischenstücke in der Tragkonstruktion sind hierfür nicht notwendig. Das Fehlen dieser Schwachstellen lässt eine Konstruktion allein unter dem Gesichtspunkt der Stabilität zu. Auf diese Weise können Schwingungen infolge Eigenfrequenz wirksam vermieden werden.Also removable spacers in the support structure are not necessary for this. The lack of these vulnerabilities allows construction from the standpoint of stability alone. In this way, vibrations due to natural frequency can be effectively avoided.

Herausnehmbare Zwischenstücke sind nur für den Wechsel des Transferbandes im Bereich der entsprechenden Presswalze vorhanden.Removable intermediate pieces are only available for the change of the transfer belt in the area of the corresponding press roll.

Dabei ist es vorteilhaft, wenn die Tragkonstruktionen von Tragbalken und Fundamenten gebildet werden, wobei die vom Transferband umschlungene Presswalze von einem Fundament abgestützt wird und die Tragbalken ohne herausnehmbare Zwischenstücke miteinander verbunden sind.It is advantageous if the supporting structures of support beams and foundations are formed, wherein the embraced by the transfer belt press roller is supported by a foundation and the support beams are connected to each other without removable spacers.

Dies erlaubt eine stabile Verbindung der Tragbalken. Herausnehmbare Zwischenstücke werden nur bei dem, von den Tragbalken separaten Fundament für die Presswalze des Transferbandes benötigt.This allows a stable connection of the support beams. Removable spacers are needed only in the, separate from the support beam foundation for the press roller of the transfer belt.

Zur Erleichterung des Wechsels, insbesondere des Einziehens des Transferbandes in die Maschine sollte sich zwischen den Tragkonstruktionen nahe und parallel zur, vom Transferband umschlungenen Presswalze eine innere Laufschiene für einen Laufwagen erstrecken.To facilitate the change, in particular the feeding of the transfer belt into the machine, an inner running rail for a carriage should extend between the supporting structures close to and parallel to the press roll, which is looped around by the transfer belt.

Außerdem können die Vorteile hinsichtlich einer material- und gewichtssparenden Tragkonstruktion optimiert werden, wenn bei zumindest einer, vorzugsweise mehreren Tragkonstruktionen die Tragbalken in einer, jeweils in Maschinenlaufrichtung liegenden Ebene so miteinander verbunden sind, dass zwischen diesen dreieckige Freiräume entstehen.In addition, the advantages can be optimized in terms of a material and weight-saving support structure, if in at least one, preferably a plurality of support structures, the support beams are connected in a, each lying in the machine direction plane together so that arise between these triangular spaces.

Über die dreieckigen Freiräume oder andere Freiräume zwischen den Tragbalken wird eine sehr gute Zugänglichkeit der Pressenpartie, insbesondere für den Wechsel eines Bandes gewährleistet.On the triangular clearances or other spaces between the support beams a very good accessibility of the press section, especially for the change of a band is guaranteed.

Im Interesse der Zugänglichkeit sollten die dreieckigen Freiräume vorwiegend, vorzugsweise ausschließlich über dem Maschinenfundament liegen. Mit Vorteil sollten die dreieckigen Freiräume wenigstens 1 m, vorzugsweise zumindest 1,5 m über dem Maschinenfundament liegen.In the interest of accessibility, the triangular free spaces should be predominantly, preferably exclusively, above the machine foundation. Advantageously, the triangular free spaces should be at least 1 m, preferably at least 1.5 m above the machine foundation.

Des Weiteren trägt es wesentlich zur Vereinfachung der Konstruktion bei, wenn eine Seite des Dreiecks von einem oberen Tragbalken gebildet wird.Furthermore, it contributes significantly to the simplification of the construction, when one side of the triangle is formed by an upper support beam.

Es ist des Weiteren von Vorteil, wenn die, eine zum Maschinenfundament weisende Ecke eines dreieckigen Freiraums bildenden Tragbalken mit einem Ende eines senkrecht verlaufenden und sich vorzugsweise auf dem Maschinenfundament abstützenden Tragbalkens verbunden sind.It is furthermore advantageous if the support beams forming a corner of a triangular free space that form the foundation of the machine are connected to one end of a support beam extending vertically and preferably supported on the machine foundation.

Um die Vorteile dieser Konstruktion in vollem Umfang nutzen zu können, sollte sich die Tragkonstruktionen zumindest über einen Teil der Pressenpartie mit mehreren Pressspalten, vorzugsweise über die gesamte Pressenpartie erstrecken.In order to fully exploit the advantages of this construction, the supporting structures should extend over at least part of the press section with a plurality of press nips, preferably over the entire press section.

Jede Tragkonstruktion mit diesen dreieckigen Freiräumen ist so in Längsrichtung der Maschine völlig oder weitestgehend einstückig ausgebildet. Einstückig bedeutet in diesem Zusammenhang, dass diese durchaus auch aus zwei oder mehreren Baugruppen bestehen können, sofern diese Baugruppen so stabil zusammengefügt sind, dass eine Steifigkeit wie bei einem einzigen Bauteil entsteht.Each support structure with these triangular free spaces is formed so completely or largely in one piece in the longitudinal direction of the machine. In this context, integrally means that these may well consist of two or more subassemblies, provided that these subassemblies are joined together so stably that a rigidity arises, as with a single component.

Die Stabilität der Maschinenstuhlung kann insgesamt noch dadurch erhöht werden, dass die Tragkonstruktionen über Querträger miteinander verbunden sind.Overall, the stability of the machine chair can be increased by connecting the supporting structures to one another via crossbeams.

Für eine einfache Konstruktion der Maschinenstuhlung ist es von Vorteil, wenn das Transferband unter und das Entwässerungsband des entsprechenden Pressspalts über der Faserstoffbahn verläuft. Dies vereinfacht die Lagerung der vom Transferband umschlungenen Presswalze auf einem separaten Fundament.For a simple construction of the machine chair, it is advantageous if the transfer belt runs underneath and the dewatering belt of the corresponding press nip above the fibrous web. This simplifies the storage of the pressure roller looped by the transfer belt on a separate foundation.

Hinsichtlich des Verfahrens zum Wechseln des Transferbandes ist wesentlich, dass an einer Seite der Maschinenstuhlung, vorzugsweise der Führerseite ein Ende eines axial zur vom Transferband umschlungenen Presswalze verlaufenden und sich vorzugsweise über die Breite des Transferbandes erstreckenden Führungsträgers mit einem über herausnehmbare Zwischenstücke mit der Tragkonstruktion dieser Seite der Maschinenstuhlung oder dem Maschinenfundament gekoppelten Supportteil der Presswalze verbunden wird, der Führungsträger eine axial zur Presswalze verlaufende, äußere Laufschiene besitzt, die sich in der Maschine über innere Laufschiene fortsetzt, wobei sich auf der äußeren Laufschiene ein Laufwagen zur Aufnahme und Führung des Transferbandes befindet, welcher das Transferband nach der Entfernung der Zwischenstücke in die Maschine fährt.With regard to the method for changing the transfer belt is essential that on one side of the machine frame, preferably the leader side one end of an axially to the press belt looped by the transfer belt and extending preferably across the width of the transfer belt guide carrier with a removable removable pieces with the support structure of this page the machine frame or the machine foundation coupled support part of the press roll is connected, the guide carrier has an axially extending to the press roller, outer track, which continues in the machine via inner track, wherein on the outer track rail a carriage for Receiving and guiding the transfer belt is located, which drives the transfer belt after the removal of the intermediate pieces in the machine.

Durch die Schaffung der äußeren Laufschiene kann das Transferband ungerafft in seiner ganzen Breite außerhalb der Maschine auf den Bandwechsel vorbereitet werden. Auch das Einfahren des Transferbandes mit Hilfe des Laufwagens in den Bereich der inneren Laufschiene gestaltet sich wesentlich einfacher.By creating the outer track rail, the transfer belt can be prepared unrequited in its entire width outside the machine on the tape change. The retraction of the transfer belt by means of the carriage in the region of the inner track designed much easier.

Außerdem kann die Presswalze über den Führungsträger gehalten werden, so dass für die Supporteile dieser Presswalze kein Cantilever- bzw. Querträger erforderlich ist. Dies vermindert nicht nur den Aufwand, sondern auch die Belastung der Gebäudestruktur.In addition, the press roller can be held on the guide support, so that no Cantilever- or cross member is required for the Supporteile this press roll. This not only reduces the effort, but also the burden on the building structure.

Zur Fixierung sollte hierzu das äußere Ende des Führungsträgers an einem Kran befestigt werden.To fix this, the outer end of the guide carrier should be attached to a crane.

Um das Einführen des Transferbandes zu vereinfachen und zu beschleunigen, sollte das Transferband nach der Fixierung am Laufwagen über axial zur Presswalze verlaufende Drapierrohre in eine etwa dem Verlauf in der Maschine entsprechende Form gebracht werden.In order to simplify and accelerate the insertion of the transfer belt, the transfer belt should be brought after fixing on the carriage over axially extending to the press roller draping into a shape corresponding approximately to the course in the machine.

Dabei können die Drapierrohre mit Vorteil am Führungsträger befestigt werden.The drapery tubes can be fastened with advantage on the guide support.

Um das Band in die Maschine einfahren zu können, müssen erst entsprechende Freiräume in der Maschinenstuhlung, vorzugsweise über das Entfernen von Zwischenstücken geschaffen werden.In order to be able to drive the belt into the machine, it is first necessary to create corresponding clearances in the machine frame, preferably by removing intermediate pieces.

Das Lösen der Zwischenstücke kann nach dem Lösen entsprechender Verbindungen in der Maschinenstuhlung relativ einfach über das Anheben des Führungsträgers erfolgen.The release of the intermediate pieces can be done relatively easily via the lifting of the guide support after loosening corresponding connections in the machine frame.

Der Führungsträgers kann dabei mit Vorteil über den Kran oder über ein sich auf dem Fundament abstützendes Hubelement angehoben werden.The guide carrier can be lifted with advantage over the crane or via a lifting element supported on the foundation.

Wegen der Raumverhältnisse sollte der Führungsträger vorzugsweise auf der Führerseite der Maschine mit dem Supportteil verbunden sein.Because of the space conditions, the guide carrier should preferably be connected to the guide part of the machine with the support part.

Besonders vorteilhaft ist die Anwendung des Verfahrens bei glatten Bändern, insbesondere impermeablen Transferbändern, weil bei diesen durch eine ansonsten notwendige Raffung die Oberfläche bleibend stark beeinträchtigt werden würde.Particularly advantageous is the application of the method in smooth tapes, in particular impermeable transfer belts, because in these would otherwise be strongly affected by an otherwise necessary gathering the surface.

Nachfolgend soll die Erfindung an mehreren Ausführungsbeispielen näher erläutert werden. In der beigefügten Zeichnung zeigt:

Figur 1:
eine schematische Seitenansicht einer Pressenpartie;
Figur 2:
eine schematische Teilansicht einer anderen Pressanordnung;
Figur 3:
eine Längsansicht der Pressanordnung vor dem Bandwechsel;
Figur 4:
nach dem Entfernen der Zwischenstücke 28 und
Figur 5:
nach dem Einführen des Bandes 13.
The invention will be explained in more detail below with reference to several exemplary embodiments. In the attached drawing shows:
FIG. 1:
a schematic side view of a press section;
FIG. 2:
a schematic partial view of another press arrangement;
FIG. 3:
a longitudinal view of the pressing assembly before the band change;
FIG. 4:
after removing the spacers 28 and
FIG. 5:
after insertion of the band 13.

Die in Figur 1 dargestellte Presspartie umfasst zwei Pressspalte, die von jeweils zwei zusammengedrückten Presswalzen 4 gebildet werden. Die separaten Presswalzen-Paare werden dabei an den Enden von Supportteilen in Form eines Fundamentes 5, welches sich auf dem Maschinenfundament 16 abstützt, getragen.The press section shown in FIG. 1 comprises two press nips which are formed by two press rolls 4 pressed together in each case. The separate press roller pairs are supported at the ends of support parts in the form of a foundation 5, which is supported on the machine foundation 16.

Durch den ersten Pressspalt läuft die Faserstoffbahn 1 mit beidseitig je einem Entwässerungsband 11,12. Im Gegensatz dazu wird die Faserstoffbahn 1 von einem oberen Entwässerungsband 14 und einem unteren, glatten und impermeablen Transferband 13 durch den zweiten Pressspalt geführt. Dabei sind die Entwässerungsbänder 11,12,14 als wasseraufnehmende Pressfilze aussgeführt.Through the first press nip, the fibrous web 1 runs on both sides with a respective dewatering belt 11, 12. In contrast, the fibrous web 1 is guided by an upper dewatering belt 14 and a lower, smooth and impermeable transfer belt 13 through the second press nip. The drainage tapes 11,12,14 are carried out as water-absorbing press felts.

Beispielhaft übernimmt hier das obere Entwässerungsband 12 des ersten Pressspaltes die Faserstoffbahn 1 von einem Formersieb 10 eines vorgelagerten Formers zur Blattbildung.By way of example, here the upper dewatering belt 12 of the first press nip takes over the fibrous web 1 from a forming wire 10 of an upstream former for sheet formation.

Nach dem ersten Pressspalt läuft die Faserstoffbahn 1 gemeinsam mit beiden Entwässerungsbändern 11,12, bevor das obere Entwässerungsband 12 weggeführt wird. Von dem allein führenden unteren Entwässerungsband 11 wird die Faserstoffbahn 1 dann an das obere Entwässerungsband 14 des zweiten Pressspaltes übergeben.After the first press nip, the fibrous web 1 runs together with both dewatering belts 11, 12 before the upper dewatering belt 12 is led away. From the sole leading lower dewatering belt 11, the fibrous web 1 is then transferred to the upper dewatering belt 14 of the second press nip.

Nach dem zweiten Pressspalt führt das untere Transferband 13 die Faserstoffbahn 1 bis zur Übernahme durch ein Trockensieb 15 einer folgenden Trockenpartie zur Trocknung der Faserstoffbahn 1.After the second press nip, the lower transfer belt 13 guides the fibrous web 1 until it is taken over by a drying wire 15 of a following drying section for drying the fibrous web 1.

In der Trockenpartie wird die Faserstoffbahn 1 vom Trockensieb 15 gestützt, abwechselnd über beheizte Trockenzylinder 9 und besaugte Leitwalzen 18 geführt.In the dryer section, the fibrous web 1 is supported by the drying wire 15, alternately guided over heated drying cylinders 9 and suctioned guide rollers 18. Die Trocknungszylinder 9 sind in den Trockenspeicher 9 angeordnet.

Die Entwässerungsbänder 11,12,14 sowie das Transferband 13 werden außerhalb der Pressspalte über Leitwalzen 7,8 sowie an Konditioniereinrichtungen 18 zur Reinigung und Entwässerung der Bänder vorbeigeführt.The dewatering belts 11, 12, 14 and the transfer belt 13 are guided past the press nips via guide rollers 7, 8 and to conditioning devices 18 for cleaning and dewatering the belts.

Die oberen Entwässerungsbänder 12,14 verlaufen im Bereich der entsprechenden Konditioniereinrichtungen 18 waagerecht und etwa in gleicher Höhe über dem Maschinenfundament 16.The upper dewatering belts 12, 14 run horizontally in the region of the corresponding conditioning devices 18 and approximately at the same height above the machine foundation 16.

Auf der Trieb- und Führerseite wird die Maschinenstuhlung jeweils von Tragkonstruktion gebildet, die sich aus Tragbalken 2 und Fundamenten 5 zusammensetzt.On the drive and guide side, the machine chair is each formed by supporting structure, which is composed of stringers 2 and foundations 5.

Im Interesse einer einfachen, leichten und dennoch stabilen Tragkonstruktion sind die Tragbalken 2 in einer in Maschinenlaufrichtung 6 liegenden Ebene so miteinander verbunden sind, dass zwischen diesen dreieckige Freiräume 3 entstehen. Diese und andere Freiräume verbessern die Zugänglichkeit der Maschine erheblich.In the interest of a simple, lightweight and yet stable supporting structure, the supporting beams 2 are in a plane lying in the machine running direction 6 with each other are connected, that arise between these triangular spaces 3. These and other free spaces greatly enhance the accessibility of the machine.

Dabei befinden sich die dreieckigen Freiräume 3 mehr als 2 m über dem Maschinenfundament 16, wobei jeweils eine Seite des Dreiecks von einem oberen Tragbalken 2 gebildet wird.Here are the triangular spaces 3 more than 2 m above the machine foundation 16, wherein one side of the triangle is formed by an upper support beam 2.

Zur Stabilisierung sind die Tragkonstruktionen über Querträger 22 miteinander verbunden.To stabilize the supporting structures via cross member 22 are interconnected.

Die Freiräume 3 haben hier die Form eines spitzwinkligen Dreiecks. Dabei sind die, die zum Maschinenfundament 16 weisende Ecke des dreieckigen Freiraums 3 bildenden Tragbalken 2 mit einem Ende eines senkrecht verlaufenden und sich vorzugsweise auf dem Maschinenfundament 16 abstützenden Tragbalkens 2 verbunden. Auf diese Weise ergibt sich an dieser Ecke des Dreiecks eine y-förmige Verbindung der Tragbalken 2.The free spaces 3 have here the shape of an acute-angled triangle. Here are the, the machine foundation 16 facing corner of the triangular space 3 forming support beams 2 connected to one end of a vertically extending and preferably supported on the machine foundation 16 support beam 2. In this way, at this corner of the triangle results in a y-shaped connection of the support beams. 2

Im Interesse einer umfassenden Nutzung der Vorteile der Konstruktion befindet sich vor jedem Presswalzenpaar ein dreieckiger Freiraum 3.In the interests of a comprehensive use of the advantages of the design, there is a triangular clearance 3 in front of each pair of press rollers.

Die Tragkonstruktion enthält keine Zwischenstücke 28 o. ä., was den Wechsel der Entwässerungsbänder 11,12,14 normalerweise erleichtern würde. Dadurch wird eine sehr stabile Konstruktion der Maschinenstuhlung möglich.The support structure contains no intermediate pieces 28 o. Ä., Which would normally facilitate the change of the drainage tapes 11,12,14. This makes a very stable construction of the machine chair possible.

Dies erfordert aber auch den Einsatz von Entwässerungsbändern 11,12,14 mit öffen- und schließbarer Quernaht. Auf diese Weise kann das Entwässerungsband 11,12,14 aufgetrennt in die Maschine eingeführt und dort wieder über die Quernaht verschlossen werden.However, this also requires the use of dewatering belts 11,12,14 with openable and closable transverse seam. In this way, the dewatering belt 11,12,14 separated introduced into the machine and closed there again on the cross seam.

Dabei sind die als Spannwalzen fungierenden Leitwalzen 8 der oberen Entwässerungsbänder 12,14 an den oberen Tragbalken gelagert. Außerdem ist die Spannrichtung der als Spannwalzen fungierenden Leitwalzen 8 der benachbarten, oberen Entwässerungsbänder 12,14 zur Erhöhung der Kompaktheit entgegengesetzt.The acting as tension rollers guide rollers 8 of the upper dewatering belts 12,14 are mounted on the upper support beam. In addition, the Clamping direction of acting as tension rollers guide rollers 8 of the adjacent, upper dewatering belts 12,14 opposite to increase the compactness.

Bei den Figuren 2 bis 5 wird zur vereinfachten Darstellung des Bandwechselverfahrens nur ein Presswalzenpaar gezeigt, wobei die Presswalzen 4 beidseitig in der Maschinenstuhlung gelagert sind, welche sich auf dem Maschinenfundament 16 abstützt.In FIGS. 2 to 5, to simplify the illustration of the band changing method, only one press roller pair is shown, wherein the press rollers 4 are mounted on both sides in the machine frame, which is supported on the machine foundation 16.

Durch den Pressspalt wird die Faserstoffbahn 1 gemeinsam mit einem oberen wasseraufnehmenden Entwässerungsband 14 und einem unteren, glatten, impermeablen Band 13 geführt.Through the press nip, the fibrous web 1 is guided together with an upper water-absorbing dewatering belt 14 and a lower, smooth, impermeable belt 13.

Auf der Führerseite umfasst die Maschinenstuhlung separate Supportteile 20,21 zur Lagerung der Presswalzen 4. Diese Supportteile 20,21 sind voneinander beabstandet und separat abgestützt.On the driver's side, the machine chair comprises separate support parts 20, 21 for supporting the press rollers 4. These support parts 20, 21 are spaced apart and supported separately.

Die Supportteile 20,21 der Führerseite sind über axial zur Presswalze 4 verlaufende Querträger 22 mit der gegenüberliegenden Maschinenstuhlung verbunden.The support parts 20,21 the leader are connected via axially extending to the press roll 4 cross member 22 with the opposite machine frame.

Außerhalb des Pressspaltes werden die Bänder 13,14 über Leitwalzen 7 geführt.Outside the press nip, the belts 13, 14 are guided over guide rollers 7.

Da das endlos umlaufende Transferband 13 nicht nur nahtlos, sondern auch glatt und damit nicht raffbar ist, wird dieses hier mit einer speziellen Wechselvorrichtung in die Maschine geführt.Since the endless circulating transfer belt 13 is not only seamless, but also smooth and therefore not gatherable, this is performed here with a special changing device in the machine.

Zuvor kann das alte zu wechselnde Transferband 13 einfach aufgetrennt und aus der Maschine entfernt werden.Previously, the old transfer belt 13 to be changed can be easily separated and removed from the machine.

Zur Vorbereitung wird gemäß den Figuren 2 und 3 auf der Führerseite der Maschinenstuhlung ein Ende eines axial zur Presswalze 4 verlaufenden Führungsträgers 23 mit dem Supportteil 21 der unteren Presswalze 4 kraftschlüssig verbunden. Dieser Führungsträger 23 besitzt eine äußere, axial zur Presswalze 4 verlaufende Laufschiene 24 zur Führung eines Laufwagens 25.In preparation, according to Figures 2 and 3 on the leader side of the machine chair one end of an axially extending to the press roller 4 guide carrier 23 to the support member 21 of the lower press roller 4 frictionally connected. This guide carrier 23 has an outer, axially extending to the press roller 4 running rail 24 for guiding a carriage 25th

Dieser Laufwagen 25 trägt das neue Transferband 13, welches auf einem Wickelrohr an der Abwickelvorrichtung des Laufwagens 25 fixiert ist.This carriage 25 carries the new transfer belt 13, which is fixed on a winding tube on the unwinding of the carriage 25.

Anschließend kann das Transferband 13 über axial zur Presswalze 4 verlaufende Drapierrohre in eine etwa dem Verlauf in der Maschine entsprechende Form gebracht werden. Die Drapierrohre können einfach am Führungsträger 23 befestigt werden.Subsequently, the transfer belt 13 can be brought about axially extending to the press roller 4 Drapierrohre in an approximately the course in the machine corresponding shape. The drapery tubes can be easily attached to the guide bracket 23.

Da sich der Führungsträger 23 über die gesamte Breite des Transferbandes 13 erstreckt, muss das Transferband 13 nicht gerafft werden, was insbesondere die glatte Oberfläche des Transferbandes 13 schont.Since the guide carrier 23 extends over the entire width of the transfer belt 13, the transfer belt 13 does not have to be gathered, which in particular protects the smooth surface of the transfer belt 13.

Der Laufwagen 25 besteht hier aus je einem Teilwagen an jedem Ende des Transferbandes 13.The carriage 25 consists here of a part of each carriage at each end of the transfer belt 13th

Über einen Kran kann im Anschluss das freie Ende des Führungsträgers 23 angehoben werden, was die Entnahme der Zwischenstücke 28 erlaubt.By means of a crane, the free end of the guide carrier 23 can subsequently be raised, which allows the removal of the intermediate pieces 28.

Durch die Entnahme der Zwischenstücke 28 und dem Abstand zwischen den Supportteilen 20,21 sind ausreichende Freiräume zum Einführen des Transferbandes 13 gegeben.By removing the intermediate pieces 28 and the distance between the support members 20,21 sufficient space for insertion of the transfer belt 13 are given.

Um dies zu erleichtern, befindet sich innerhalb der Maschine eine axial zur Presswalze 4 verlaufende innere Laufschiene 26, welche sich an die äußere Laufschiene 27 anschließt.To facilitate this, located inside the machine an axially extending to the press roller 4 inner rail 26, which adjoins the outer rail 27.

Auf diese Weise kann der Laufwagen 25 mit dem Transferband 13 entsprechend Figur 5 einfach in die Maschine gefahren werden. Das restliche, aufgewickelte Transferband 13 auf dem Wickelrohr wird mit der Abwickelvorrichtung kontrolliert abgewickelt.In this way, the carriage 25 with the transfer belt 13 according to Figure 5 can be easily driven into the machine. The remaining, wound transfer belt 13 on the winding tube is unwound controlled by the unwinding device.

Nach der Montage des Transferbandes 13 in der Maschine kann der Laufwagen 25 wieder aus der Maschine gefahren und gemeinsam mit dem Führungsträger 23 entfernt werden.After mounting the transfer belt 13 in the machine, the carriage 25 can be driven out of the machine and removed together with the guide support 23.

Da die Maschinenstuhlung nur führerseitig Zwischenstücke 28 zwischen dem unteren Supportteil 21 und dem Maschinenfundament 16 besitzt, kann die von den Tragbalken 2 gebildete Tragkonstruktion sehr stabil und einfach konstruiert werden.Since the machine chair has only leader-side intermediate pieces 28 between the lower support part 21 and the machine foundation 16, the support structure formed by the support beam 2 can be constructed very stable and simple.

Claims (11)

Maschinenstuhlung einer Pressenpartie zur Entwässerung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn (1) in einer Maschine zur Herstellung und/oder Veredlung derselben, wobei die Pressenpartie mehrere separate, von Presswalzen (4) gebildete Pressspalte umfasst, die Enden der Presswalzen (4) jeweils in einer trieb- und führerseitigem Tragkonstruktion der Maschinenstuhlung gelagert sind und durch diese Pressspalte neben der Faserstoffbahn (1) zumindest ein wasseraufnehmendes und endlos umlaufendes Entwässerungsband (11,12,14) geführt ist, wobei durch einen Pressspalt ein Entwässerungsband (14) und ein endloses Transferband (13) läuft, dadurch gekennzeichnet, dass
alle Entwässerungsbänder (11,12,14) öffen- und schließbare Quernähte besitzen und die Tragkonstruktion nur für den Einzug des Transferbandes (13) zu entfernende Zwischenstücke (28) umfasst.Machine chair of a press section for dewatering a paper, board, tissue or other fibrous web (1) in a machine for producing and / or finishing the press, the press section comprising a plurality of separate press nips formed by press rolls (4) Press rollers (4) are each mounted in a drive and leader-side support structure of the machine frame and at least one water-absorbing and endless circulating dewatering belt (11,12,14) is guided through this press nip next to the fibrous web (1), wherein by a press nip a dewatering belt ( 14) and an endless transfer belt (13) runs, characterized in that
All drainage tapes (11,12,14) have openable and closable transverse seams and the support structure only for the collection of the transfer belt (13) to be removed intermediate pieces (28). Maschinenstuhlung nach Anspruch 1, dadurch gekennzeichnet, dass die Tragkonstruktionen von Tragbalken (2,19) und Fundamenten (5) gebildet werden, wobei die vom Transferband (13) umschlungene Presswalze (4) von einem Fundament (5) abgestützt wird und die Tragbalken (2) ohne herausnehmbare Zwischenstücke (28) miteinander verbunden sind.Machine chair according to claim 1, characterized in that the supporting structures of support beams (2,19) and foundations (5) are formed, wherein the press belt (4) looped by the transfer belt (13) is supported by a foundation (5) and the support beams ( 2) without removable intermediate pieces (28) are interconnected. Maschinenstuhlung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich zwischen den Tragkonstruktionen nahe und parallel zur, vom Transferband (13) umschlungenen Presswalze (4) eine innere Laufschiene (26) für einen Laufwagen (25) erstreckt.Machine chair according to claim 1 or 2, characterized in that between the supporting structures near and parallel to the, from the transfer belt (13) wrapped press roll (4) an inner running rail (26) for a carriage (25). Maschinenstuhlung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass bei zumindest einer, vorzugsweise mehreren Tragkonstruktionen die Tragbalken (2) in einer, jeweils in Maschinenlaufrichtung (6) liegenden Ebene so miteinander verbunden sind, dass zwischen diesen dreieckige Freiräume (3) entstehen.Machine chair according to claim 2 or 3, characterized in that in at least one, preferably a plurality of supporting structures, the supporting beams (2) in a, each in the machine direction (6) lying plane are so interconnected that arise between these triangular spaces (3). Maschinenstuhlung nach Anspruch 4, dadurch gekennzeichnet, dass die, eine zum Maschinenfundament (16) weisende Ecke eines dreieckigen Freiraums (3) bildenden Tragbalken (2) mit einem Ende eines senkrecht verlaufenden und sich vorzugsweise auf dem Maschinenfundament (16) abstützenden Tragbalkens (2) verbunden sind.Machine chair according to claim 4, characterized in that , a, to the machine foundation (16) facing corner of a triangular space (3) forming support beam (2) having one end of a vertically extending and preferably on the machine foundation (16) supporting support beam (2) are connected. Maschinenstuhlung nach einem der vorhergehenden Ansprüche, dadurch
gekennzeichnet, dass
sich die Tragkonstruktionen zumindest über einen Teil der Pressenpartie mit mehreren Pressspalten, vorzugsweise über die gesamte Pressenpartie erstrecken.Machine chair according to one of the preceding claims, characterized
marked that
extend the support structures at least over part of the press section with a plurality of press nips, preferably over the entire press section. Maschinenstuhlung nach einem der vorhergehenden Ansprüche, dadurch
gekennzeichnet, dass
die Tragkonstruktionen über Querträger (22) miteinander verbunden sind.Machine chair according to one of the preceding claims, characterized
marked that
the supporting structures via cross member (22) are interconnected. Maschinenstuhlung nach einem der vorhergehenden Ansprüche, dadurch
gekennzeichnet, dass
das Transferband (13) unter der Faserstoffbahn (1) verläuft.Machine chair according to one of the preceding claims, characterized
marked that
the transfer belt (13) extends below the fibrous web (1). Verfahren zum Wechseln eines endlosen Transferbandes einer Maschine mit einer Maschinenstuhlung nach einem der vorhergehenden Ansprüche, dadurch
gekennzeichnet, dass
an einer Seite der Maschinenstuhlung, vorzugsweise der Führerseite ein Ende eines axial zur, vom Transferband (13) umschlungenen Presswalze (4) verlaufenden und sich vorzugsweise über die Breite des Transferbandes (13) erstreckenden Führungsträgers (23) mit einem über herausnehmbare Zwischenstücke (28) mit der Tragkonstruktion dieser Seite der Maschinenstuhlung oder dem Maschinenfundament (16) gekoppelten Supportteil (20,21) der Presswalze (4) verbunden wird, der Führungsträger (23) eine axial zur Presswalze (4) verlaufende, äußere Laufschiene (27) besitzt, die sich in der Maschine über die innere Laufschiene (26) fortsetzt, wobei sich auf der äußeren Laufschiene (27) ein Laufwagen (25) zur Aufnahme und Führung des Transferbandes (13) befindet, welcher das Transferband (13) nach der Entfernung der Zwischenstücke (28) in die Maschine fährt.Method for changing an endless transfer belt of a machine with a machine frame according to one of the preceding claims, characterized
marked that
on one side of the machine frame, preferably the guide side, one end of a guide support (23) extending axially to the press belt (4), which extends around the width of the transfer belt (13) and has a removable intermediate piece (28) extending over the width of the transfer belt (13). coupled with the support structure of this side of the machine chair or machine foundation (16) Support member (20,21) of the press roller (4) is connected, the guide support (23) has an axially to the press roller (4) extending, outer track rail (27) which continues in the machine via the inner track rail (26), wherein on the outer track (27) is a carriage (25) for receiving and guiding the transfer belt (13), which drives the transfer belt (13) after the removal of the intermediate pieces (28) in the machine. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass
das Transferband (13) nach der Fixierung am Laufwagen (25) über axial zur Presswalze (4) verlaufende Drapierrohre in eine etwa dem Verlauf in der Maschine entsprechende Form gebracht wird.A method according to claim 9, characterized in that
the transfer belt (13) after fixing on the carriage (25) via axially extending to the press roller (4) extending Drapierrohre in a shape corresponding approximately to the course in the machine. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass der Führungsträger (23) zum Lösen der Zwischenstücke (28) angehoben wird.A method according to claim 9 or 10, characterized in that the guide support (23) for releasing the intermediate pieces (28) is raised.
EP07104203A 2006-06-21 2007-03-15 Machine frame Not-in-force EP1870515B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006028419A DE102006028419A1 (en) 2006-06-21 2006-06-21 machine frame

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EP1870515B1 EP1870515B1 (en) 2011-08-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508954A3 (en) * 2009-11-02 2012-09-15 Metso Paper Inc FOR A FABRIC WITH SEPARATELY REPLACEMENT AND METHOD FOR A FIBERMAKING MACHINE
CN110273317A (en) * 2018-03-16 2019-09-24 福伊特专利有限公司 Press section

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071814A1 (en) * 1999-05-24 2000-11-30 Metso Paper, Inc. Method for changing a transfer belt in a paper or board machine
DE102004046060A1 (en) * 2004-09-21 2006-03-23 Voith Paper Patent Gmbh Design for paper- or card making machine includes unitary machine frame for support and guidance in pressing and drying sections

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071814A1 (en) * 1999-05-24 2000-11-30 Metso Paper, Inc. Method for changing a transfer belt in a paper or board machine
DE102004046060A1 (en) * 2004-09-21 2006-03-23 Voith Paper Patent Gmbh Design for paper- or card making machine includes unitary machine frame for support and guidance in pressing and drying sections

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508954A3 (en) * 2009-11-02 2012-09-15 Metso Paper Inc FOR A FABRIC WITH SEPARATELY REPLACEMENT AND METHOD FOR A FIBERMAKING MACHINE
AT508954B1 (en) * 2009-11-02 2013-05-15 Metso Paper Inc FOR A FABRIC WITH SEPARATELY REPLACEMENT AND METHOD FOR A FIBERMAKING MACHINE
CN110273317A (en) * 2018-03-16 2019-09-24 福伊特专利有限公司 Press section
CN110273317B (en) * 2018-03-16 2023-02-17 福伊特专利有限公司 Press section

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EP1870515B1 (en) 2011-08-03
ATE518990T1 (en) 2011-08-15

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