EP0745724B1 - Roller press - Google Patents

Roller press Download PDF

Info

Publication number
EP0745724B1
EP0745724B1 EP96106485A EP96106485A EP0745724B1 EP 0745724 B1 EP0745724 B1 EP 0745724B1 EP 96106485 A EP96106485 A EP 96106485A EP 96106485 A EP96106485 A EP 96106485A EP 0745724 B1 EP0745724 B1 EP 0745724B1
Authority
EP
European Patent Office
Prior art keywords
roll
press
roller
jacket
counter
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.)
Expired - Lifetime
Application number
EP96106485A
Other languages
German (de)
French (fr)
Other versions
EP0745724A3 (en
EP0745724A2 (en
Inventor
Christian Schiel
Rainer Bentele
Wolf Gunter Stotz
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 Sulzer Papiertechnik 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 Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiertechnik Patent GmbH
Publication of EP0745724A2 publication Critical patent/EP0745724A2/en
Publication of EP0745724A3 publication Critical patent/EP0745724A3/en
Application granted granted Critical
Publication of EP0745724B1 publication Critical patent/EP0745724B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a roller press consisting of at least two wide ones Press nip forming rollers according to the preamble of claim 1 as they for example, when dewatering or smoothing a fibrous web finds.
  • rollers include known from DE-OS 43 22 876, the Sliding shoe supporting the roller jacket to influence the smoothing result in The web running direction is divided into sections. With WO 93/12290 it works again to keep the roller axes exactly in the press plane.
  • the invention is therefore based on the object of creating a roller press which also a largely uniform one when the counter roll is not controlled by deflection Press nip enables.
  • the change in the outer circumference of the roll shell of the press roll in Axial direction be as small as possible and take place evenly, so that the Adjusting the surface of the roll shell (viewed in the axial direction) Differences in speed do not have a negative impact on the material web.
  • the outer circumference of the roll shell, or its change in the axial direction can be influenced during manufacture by the fact that the inner circumference and / or the wall thickness of the roll shell of the press roll from the center of the roll dimensional changes starting in the axial direction towards the roller ends.
  • the axial Change in circumference via a thermal influence on the roll shell cause. This can be done from the inside, e.g. about the temperature control of the lubricating fluid Support elements and / or from the outside, for example inductively or with hot air.
  • the roller press shown in Figure 1 consists of a press roller 4 and a mating roller 8 arranged above it, while the mating roller 8 is is a full roll, the press roll 4 consists of a very flexible to one fixed carrier 5 rotatable roller jacket 6, for example over several Support elements 7 arranged axially close to one another are mounted on the carrier 5.
  • the support elements 7 are pressed hydraulically and can be independent of each other can be designed controllable.
  • the lubrication of the gap between the support surface of the Support element 7 and the roller jacket 6 can be hydrodynamic and / or hydrostatic respectively.
  • the support surface of the support elements 7 is concave, so that between the press roll 4 and the cylindrical counter roll 8 form a wide press nip 1, as used, for example, to smooth a fibrous web.
  • Press nip can be achieved in an inventive manner in that the outer Scope of the roll shell 6 of the press roll 4 starting from the roll center in the axial Direction towards the roller ends reduced.
  • the roller press according to FIG. 2 consists of approximately 3 rollers arranged one above the other, the counter roller 8 between the other two Rolls is arranged and forms a press nip 1 or 10 with each.
  • the press and Counter roll 4 and 8 are constructed as in the first embodiment.
  • the third roller arranged below the counter roller 8 is a suction roller 9 educated.
  • Such a roller press can i.a. serve to drain a fibrous web, although it is of course also possible for example, to run a drainage belt 3 through both press nips 1 and 10 or instead of using the support elements 7 only a strip-shaped support element 7.
  • the counter roll comes without one Deflection control off.
  • the circumference of the roll shell 6 of the press roll 4 can are influenced by the fact that the inner circumference and / or the wall thickness of the roll shell 6 of the press roll 4 starting from the roll center in axial Dimensionally changed towards the roller ends.

Abstract

A calender or similar piece of equipment consists of at least two rolls forming a press gap (1) for treating a material web (2). One of the press rolls is made of highly flexible roll surface (6), which rotates round a stationary support and is mounted on the support (5) via at least one support element (7). The outer roll surface periphery changes in size in the axial direction, starting from the roll middle.

Description

Die Erfindung betrifft eine Walzenpresse, bestehend aus mindestens zwei einen breiten Preßspalt bildenden Walzen gemäß dem Oberbegriff des Anspruchs 1, wie sie beispielsweise bei der Entwässerung oder Glättung einer Faserstoffbahn Verwendung findet.The invention relates to a roller press consisting of at least two wide ones Press nip forming rollers according to the preamble of claim 1 as they for example, when dewatering or smoothing a fibrous web finds.

Derartige Walzen sind u.a. aus der DE-OS 43 22 876 bekannt, wobei der den Walzenmantel stützende Gleitschuh zur Beeinflussung des Glättergebnisses in Bahnlaufrichtung in Sektionen unterteilt ist. Bei der WO 93/12290 geht es wiederum darum, die Walzenachsen genau in der Preßebene zu halten.Such rollers include known from DE-OS 43 22 876, the Sliding shoe supporting the roller jacket to influence the smoothing result in The web running direction is divided into sections. With WO 93/12290 it works again to keep the roller axes exactly in the press plane.

Insbesondere bei sehr breiten Walzenpressen mit nicht durchbiegungsgesteuerten Gegenwalzen können sich Probleme hinsichtlich der Bildung eines möglichst gleichförmigen Preßspaltes ergeben. Dies resultiert daraus, daß z.B. die Preßwalze bei sehr niedrigen Preßkräften nicht mehr voll der gewichtskraftbedingten Durchbiegung der Gegenwalze folgen kann, woraus sich eine ungleiche Linienkraftverteilung über die Breite ergibt.Especially in the case of very wide roller presses with non-deflection-controlled ones Counter rolls can cause problems regarding the formation of a result in uniform press nip. This results from the fact that e.g. the press roll very low press forces no longer fully the deflection caused by weight the counter roller can follow, resulting in an uneven distribution of line force over the Width results.

Aber auch wenn die Gegenwalze mit einer dritten Walze zusammenwirkt, wie in der WO 93/12289 gezeigt, kann es Schwierigkeiten bei der Bildung eines möglichst geraden, gleichförmigen Preßspaltes aufgrund der Walzendurchbiegung geben.But even if the counter roller interacts with a third roller, as in WO 93/12289 shown, it can be difficult to form a straight give uniform press nip due to the roll deflection.

Zwar ist es möglich, auch die Gegenwalze in der Preßebene gesteuert abzustützen, jedoch erfordert dies einen erheblichen Aufwand. Außerdem können sich bei den üblichen hydraulischen Stützelementen thermische Probleme ergeben, falls beispielsweise die Gegenwalze und/oder die dritte Walze zur Verbesserung des Entwässerungs- oder Glättergebnisses beheizt wird. Although it is possible to support the counter roll in a controlled manner in the press plane, however, this requires considerable effort. In addition, the usual hydraulic support elements result in thermal problems, if for example the counter roller and / or the third roller to improve the Dewatering or smoothing result is heated.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Walzenpresse zu schaffen, die auch bei nicht durchbiegungsgesteuerter Gegenwalze einen weitestgehend gleichförmigen Preßspalt ermöglicht.The invention is therefore based on the object of creating a roller press which also a largely uniform one when the counter roll is not controlled by deflection Press nip enables.

Erfindungsgemäß wurde die Aufgabe durch die im Anspruch 1 beschriebene Vorrichtung gelöst, wobei die Unteransprüche besondere Ausführungsformen darstellen.According to the invention the object was achieved by the device described in claim 1 solved, the subclaims representing special embodiments.

Dadurch, daß sich der äußere Umfang des Walzenmantels der Preßwalze von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin in einer vom Anwendungsfall abhängenden Weise maßlich verändert, kann auch bei nicht durchbiegungsgesteuerter Gegenwalze ein weitestgehend gleichförmiger Preßspalt gebildet werden.Characterized in that the outer circumference of the roll shell of the press roll from Roll center starting in the axial direction towards the roll ends in one of the Use-dependent way of changing dimensions, can also not deflection-controlled counter roll a largely uniform press nip be formed.

Dabei sollte die Änderung des äußeren Umfangs des Walzenmantels der Preßwalze in axialer Richtung möglichst klein sein und gleichmäßig erfolgen, so daß sich die an der Oberfläche des Walzenmantels (in axialer Richtung betrachtet) einstellenden Geschwindigkeitsunterschiede nicht negativ auf die Materialbahn auswirken.The change in the outer circumference of the roll shell of the press roll in Axial direction be as small as possible and take place evenly, so that the Adjusting the surface of the roll shell (viewed in the axial direction) Differences in speed do not have a negative impact on the material web.

Damit sich auch zwischen den Walzenmänteln der Preß- und der Gegenwalze keine Geschwindigkeitsunterschiede ergeben, ist es von Vorteil, wenn sich der Umfang des Walzenmantels der Gegenwalze von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin in der hinsichtlich der Preßwalze gleichen Weise und vorzugsweise im selben relativen Maße ändert.So that there is also none between the roll shells of the press roll and the counter roll Speed differences, it is advantageous if the scope of the Roll jacket of the counter roll from the middle of the roll in the axial direction the roller ends in the same way with respect to the press roller and preferably changes to the same relative extent.

Der äußere Umfang des Walzenmantels, bzw. dessen Änderung in axialer Richtung, kann bereits bei der Herstellung dadurch beeinflußt werden, daß sich der innere Umfang und/oder die Wandstärke des Walzenmantels der Preßwalze von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin maßlich verändert.The outer circumference of the roll shell, or its change in the axial direction, can be influenced during manufacture by the fact that the inner circumference and / or the wall thickness of the roll shell of the press roll from the center of the roll dimensional changes starting in the axial direction towards the roller ends.

In Ergänzung dazu oder für sich allein ist es aber auch möglich, die axiale Umfangsveränderung über eine thermische Beeinflussung des Walzenmantels zu bewirken. Dies kann von innen, z.B. über die Temperierung des Schmierfluids der Stützelemente und/oder von außen, beispielsweise induktiv oder mit Heißluft, erfolgen.In addition to this or on its own, it is also possible to use the axial Change in circumference via a thermal influence on the roll shell cause. This can be done from the inside, e.g. about the temperature control of the lubricating fluid Support elements and / or from the outside, for example inductively or with hot air.

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

Figur 1
einen schematischen Querschnitt durch eine Walzenpresse mit zwei Walzen und
Figur 2
einen schematischen Querschnitt durch eine Walzenpresse mit drei Walzen.
The invention will be explained in more detail below using two exemplary embodiments. The attached drawing shows:
Figure 1
a schematic cross section through a roller press with two rollers and
Figure 2
a schematic cross section through a roller press with three rollers.

Die in Figur 1 dargestellte Walzenpresse besteht aus einer Preßwalze 4 und einer darüber angeordneten Gegenwalze 8. Während es sich bei der Gegenwalze 8 hierbei um eine Vollwalze handelt, besteht die Preßwalze 4 aus einem sehr flexiblen, um einen feststehenden Träger 5 rotierbaren Walzenmantel 6, der beispielsweise über mehrere axial dicht nebeneinander angeordnete Stützelemente 7 auf dem Träger 5 gelagert ist. Die Stützelemente 7 werden hydraulisch angepreßt und können unabhängig voneinander ansteuerbar gestaltet werden. Die Schmierung des Spaltes zwischen der Stützfläche des Stützelementes 7 und dem Walzenmantel 6 kann hydrodynamisch und/oder hydrostatisch erfolgen. Die Stützfläche der Stützelemente 7 ist konkav geformt, so daß sich zwischen der Preßwalze 4 und der zylindrischen Gegenwalze 8 ein breiter Preßspalt 1 ausbildet, wie er beispielsweise zur Glättung einer Faserstoffbahn verwendet wird.The roller press shown in Figure 1 consists of a press roller 4 and a mating roller 8 arranged above it, while the mating roller 8 is is a full roll, the press roll 4 consists of a very flexible to one fixed carrier 5 rotatable roller jacket 6, for example over several Support elements 7 arranged axially close to one another are mounted on the carrier 5. The support elements 7 are pressed hydraulically and can be independent of each other can be designed controllable. The lubrication of the gap between the support surface of the Support element 7 and the roller jacket 6 can be hydrodynamic and / or hydrostatic respectively. The support surface of the support elements 7 is concave, so that between the press roll 4 and the cylindrical counter roll 8 form a wide press nip 1, as used, for example, to smooth a fibrous web.

Falls hierbei zum Beispiel die gewünschte Preßkraft im Preßspalt 1 wesentlich über der Gewichtskraft der Gegenwalze 8 liegt, kann ein weitestgehend gleichförmiger Preßspalt in erfinderischer Weise dadurch erreicht werden, daß sich der äußere Umfang des Walzenmantels 6 der Preßwalze 4 von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin verringert.If, for example, the desired pressing force in the press nip 1 is significantly above the weight of the counter roll 8 is a largely uniform Press nip can be achieved in an inventive manner in that the outer Scope of the roll shell 6 of the press roll 4 starting from the roll center in the axial Direction towards the roller ends reduced.

Im umgekehrten Fall, nämlich dann, wenn die gewünschte Preßkraft wesentlich unter der Gewichtskraft liegen soll, ist es von Vorteil, wenn sich der äußere Umfang des Walzenmantels 6 von der Walzenmitte zu den Walzenenden hin vergrößert.In the opposite case, namely when the desired pressing force is significantly below the weight should be, it is advantageous if the outer circumference of the Roll shell 6 enlarged from the roll center to the roll ends.

Damit die maßliche Veränderung des Walzenumfangs begrenzt bleibt und sich keine großen Geschwindigkeitsunterschiede zwischen der Preßwalze 4 und der Gegenwalze 8 im Preßspalt 1 einstellen, ist es außerdem angebracht, daß sich der Umfang des Walzenmantels 6 der Gegenwalze 8 von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin in der hinsichtlich der Preßwalze 4 gleichen Weise und vorzugsweise relativ im selben Maße ändert.So that the dimensional change of the roller circumference remains limited and none large speed differences between the press roll 4 and the counter roll 8 adjust in the press nip 1, it is also appropriate that the scope of the Roll jacket 6 of the counter roll 8 starting from the roll center in the axial direction towards the roll ends in the same way with respect to the press roll 4 and preferably changes relatively to the same extent.

Die Walzenpresse gemäß Figur 2 besteht im Unterschied dazu aus 3 ungefähr übereinander angeordneten Walzen, wobei die Gegenwalze 8 zwischen den beiden anderen Walzen angeordnet ist und mit diesen je einen Preßspalt 1 bzw. 10 bildet. Die Preß-und Gegenwalze 4 und 8 sind dabei, wie in dem ersten Ausführungsbeispiel aufgebaut. Die dritte unterhalb der Gegenwalze 8 angeordnete Walze ist als Saugwalze 9 ausgebildet. Neben der Materialbahn 2 wird durch jeden Preßspalt 1 ein separates, diesem zugeordnetes Entwässerungsband 3 geführt. Eine derartige Walzenpresse kann u.a. der Entwässerung einer Faserstoffbahn dienen, wobei es natürlich auch möglich ist, beispielsweise ein Entwässerungsband 3 durch beide Preßspalte 1 und 10 zu führen oder anstatt der Stützelemente 7 nur ein leistenförmiges Stützelement 7 zu verwenden.In contrast, the roller press according to FIG. 2 consists of approximately 3 rollers arranged one above the other, the counter roller 8 between the other two Rolls is arranged and forms a press nip 1 or 10 with each. The press and Counter roll 4 and 8 are constructed as in the first embodiment. The third roller arranged below the counter roller 8 is a suction roller 9 educated. In addition to the material web 2, a separate, this assigned drainage belt 3 out. Such a roller press can i.a. serve to drain a fibrous web, although it is of course also possible for example, to run a drainage belt 3 through both press nips 1 and 10 or instead of using the support elements 7 only a strip-shaped support element 7.

Für den Fall, daß sich der äußere Umfang des Walzenmantels 6 der Preßwalze 4 von der Walzenmitte zu den Walzenenden hin verkleinert, erbringt dies neben dem o.g. Vorteil in Bezug auf den Preßspalt 1 zwischen der Gegenwalze 8 und der Preßwalze 4 auch beim Zusammenwirken der Gegenwalze 8 mit der Saugwalze 9 eine bessere Gleichförmigkeit des Preßspaltes 10. Dies resultiert insbesondere daraus, daß die Gegenwalze 8 axial im mittleren Bereich verstärkt zur Saugwalze 9 hin gebogen wird. Auch hierbei ergibt sich eine weitere Verbesserung, wenn sich z.B. der Walzenmantel der Gegenwalze 8 und eventuell sogar der der Saugwalze 9 von der Walzenmitte zu den Walzenenden hin verringert. Die Umfangsveränderung erfolgt im allgemeinen symmetrisch zur Walzenmitte. In the event that the outer circumference of the roll shell 6 of the press roll 4 of the Reduced roll center towards the roll ends, in addition to the above advantage in relation to the press nip 1 between the counter roll 8 and the press roll 4 also at Interaction of the counter roller 8 with the suction roller 9 a better uniformity of the press nip 10. This results in particular from the fact that the counter roll 8 axially in middle area is increasingly bent towards the suction roller 9. This also results a further improvement if e.g. the roll shell of the counter roll 8 and possibly even that of the suction roll 9 from the roll center to the roll ends decreased. The change in circumference is generally symmetrical to Middle of roller.

Bei beiden Ausführungen kommt man bei der Gegenwalze ohne eine Durchbiegungssteuerung aus. Der Umfang des Walzenmantels 6 der Preßwalze 4 kann dabei dadurch beeinflußt werden, daß sich der innere Umfang und/oder die Wandstärke des Walzenmantels 6 der Preßwalze 4 von der Walzenmitte ausgehend in axialer Richtung zu den Walzenenden hin maßlich verändert.In both versions, the counter roll comes without one Deflection control off. The circumference of the roll shell 6 of the press roll 4 can are influenced by the fact that the inner circumference and / or the wall thickness of the roll shell 6 of the press roll 4 starting from the roll center in axial Dimensionally changed towards the roller ends.

Es ist jedoch auch möglich, die Umfangsveränderung des Walzenmantels 6 der Preßwalze 4 ganz oder zumindest zum Teil über eine thermische Beeinflussung des Walzenmantels 6 zu bewirken. Dies kann von innen und/oder außen erfolgen, beispielsweise mit Heißluft oder über das Schmierfluid der Stützelemente 7.However, it is also possible to change the circumference of the roll shell 6 Press roll 4 wholly or at least in part via a thermal influence of the To effect roll shell 6. This can be done from the inside and / or outside, for example with hot air or via the lubricating fluid of the support elements 7.

Claims (5)

  1. Roller press, calender or the like, comprising at least two rolls respectively forming a press gap (1) for the treatment of a material web (2), of which one press roll (4) comprises a flexible roll jacket (6) rotatable about a stationary carrier (5) and journalled on the carrier (5) via at least one support element (7), wherein the support element (7) has a concave support surface forming a broad press gap (1) with the counter-roll (8), characterised in that the outer circumference of the roll jacket (6) of the press roll (4) changes dimensionally going from the centre of the roll in the axial direction to the roll ends.
  2. Roller press in accordance with claim 1, characterised in that the circumference of the roll jacket of the counter-roll (8) changes in the same manner and preferably to the same degree as the press roll (4) going from the centre of the roll in the axial direction to the roll ends.
  3. Roller press in accordance with claim 1 or claim 2, characterised in that the inner circumference and/or the wall thickness of the roll jacket (6) of the press roll (4) changes dimensionally going from the centre of the roll in the axial direction to the roll ends.
  4. Roller press in accordance with one of the claims 1 to 3, characterised in that the change in circumference of the roll jacket (6) of the press roll (4) is brought about fully or at least in part by a thermal influencing of the roll jacket (6).
  5. Roller press in accordance with claim 4, characterised in that the thermal influencing of the roll jacket (6) of the press roll (4) takes place from the inside and/or from the outside.
EP96106485A 1995-06-03 1996-04-25 Roller press Expired - Lifetime EP0745724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520442A DE19520442C2 (en) 1995-06-03 1995-06-03 Roller press
DE19520442 1995-06-03

Publications (3)

Publication Number Publication Date
EP0745724A2 EP0745724A2 (en) 1996-12-04
EP0745724A3 EP0745724A3 (en) 1997-01-22
EP0745724B1 true EP0745724B1 (en) 1999-09-29

Family

ID=7763625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106485A Expired - Lifetime EP0745724B1 (en) 1995-06-03 1996-04-25 Roller press

Country Status (5)

Country Link
US (1) US5711854A (en)
EP (1) EP0745724B1 (en)
JP (1) JPH08325975A (en)
AT (1) ATE185176T1 (en)
DE (3) DE19520442C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756422A1 (en) * 1997-12-18 1999-06-24 Voith Sulzer Papiertech Patent Machine for producing a fibrous web, in particular a tissue paper web
FI111864B (en) * 1998-03-13 2003-09-30 Metso Paper Inc Method of calendering paper web and calender applying the procedure
US6309512B1 (en) * 1998-09-22 2001-10-30 Valmet Karlstad Ab Device for impulse-pressing a web
US6513425B1 (en) * 1999-05-05 2003-02-04 Metso Paper Karlstad Ab Assembly for positioning a heater in a relation to a roll, and a press device with such an assembly
FI991272A (en) * 1999-06-03 2000-12-04 Valmet Karlstad Ab Procedure and arrangement for setting a shoe in a shoe press / shoe calendars in a paper machine
DE10213852A1 (en) * 2002-03-27 2003-10-16 Voith Paper Patent Gmbh press shoe
JP3795002B2 (en) * 2002-10-04 2006-07-12 ヤマウチ株式会社 Elastic sleeve for shoe press, method for producing elastic sleeve for shoe press, and shoe press roll
DE10255715B4 (en) * 2002-11-29 2006-08-31 Voith Paper Patent Gmbh Wide-nip calender and coat for a wide-nip calender
FI117981B (en) * 2002-12-20 2007-05-15 Upm Kymmene Corp Pinching arrangement for a paper machine or the like

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448683A (en) * 1966-12-16 1969-06-10 Adamson United Co Calender with removable bearing pressure mechanism
SE341660B (en) * 1969-03-07 1972-01-10 L Bjoerkegren
US3770578A (en) * 1971-05-12 1973-11-06 Midland Ross Corp Method for controlling caliper
DE2155477A1 (en) * 1971-11-09 1973-05-10 Johann Heinrich Saueressig Mas Pressure roller - for a textile calendering printing or finishing machine,and esp for a multicolour gravure printing machi
US3991669A (en) * 1973-01-17 1976-11-16 Imperial Chemical Industries Limited Calender presses
DE3343313A1 (en) * 1983-11-30 1985-06-05 J.M. Voith Gmbh, 7920 Heidenheim ROLLER FOR TREATING TRACKS, PREFERABLY PAPER TRACKS
US4768433A (en) * 1985-01-25 1988-09-06 Measurex Corporation Hot air calender roll controller
DE3738442A1 (en) * 1987-11-12 1989-05-24 Voith Gmbh J M Calender for paper webs
DE3920176A1 (en) * 1988-12-21 1990-07-05 Escher Wyss Ag ROLLER AND METHOD FOR THEIR OPERATION
DE4140879A1 (en) * 1991-12-11 1993-06-17 Voith Gmbh J M PRESS RELEASE
DE4140876C2 (en) * 1991-12-11 1994-04-21 Voith Gmbh J M Roller press
DE4322876A1 (en) * 1993-07-09 1993-11-18 Voith Gmbh J M Web polishing unit - has a sliding shoe divided into sections along web travel for precise control without deviation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PULP AND PAPER MANUFACTURE, THIRD EDITION, VOLUME 7: "Paper Machine Operations", THE JOINT TEXTBOOK COMMITTEE OF THE PAPER INDUSTRY, CANADA, 1991 *

Also Published As

Publication number Publication date
EP0745724A3 (en) 1997-01-22
DE29607206U1 (en) 1996-06-20
DE19520442A1 (en) 1996-12-05
ATE185176T1 (en) 1999-10-15
JPH08325975A (en) 1996-12-10
EP0745724A2 (en) 1996-12-04
DE19520442C2 (en) 2000-05-31
DE59603205D1 (en) 1999-11-04
US5711854A (en) 1998-01-27

Similar Documents

Publication Publication Date Title
DE3131799C2 (en) Roller press for paper and similar webs, in particular calenders
EP0675224B1 (en) Press for web material
DE3503819A1 (en) Hydraulic press shoe and its use and operation
DE3201635C2 (en) Calender arrangement
EP0745724B1 (en) Roller press
DE602004011382T2 (en) BODY, HOLDER THEREFOR, DEVICE WITH THE CARRIER FOR TREATING A RAIL, METHOD FOR FORMING A LONGER ROLLER COLUMN IN THE DEVICE, AND FOR TARGET ADJUSTING THE LINE PRESSURE IN THE ROLL
DE4435845C1 (en) Press roller esp. with flexible shell and internal press shoe
EP0839953B1 (en) Shoe press
DE4026021C2 (en) Press section of a paper machine
DE4344165A1 (en) Process to smooth fibre strip has in-run pressure profile trimming
EP0837181B1 (en) Press section
DE4343173A1 (en) Combined calender and rewinding system for paper and plastic web prods
DE19633958A1 (en) Web press unit suction roller
DE19520443C2 (en) Roller press
EP0928843B1 (en) Pressing arrangement
DE60033137T2 (en) Crepe paper machine and its press section
DE4444892C2 (en) Press roll
EP4004281A1 (en) Shoe press
DE4026339C2 (en) Special belt for a dewatering press of a paper machine
DE60011293T2 (en) CALENDAR DEVICE FOR A PAPER MACHINE
EP1333121B1 (en) Calender and method for operating a calender
EP1431453B1 (en) Extended nip calender
DE3901468C1 (en)
DE102007060400B3 (en) Apparatus for forming an extended nip
DE4202047C2 (en) Line force correction method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960425

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE FI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FI SE

17Q First examination report despatched

Effective date: 19980710

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH SULZER PAPIERTECHNIK PATENT GMBH

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FI SE

REF Corresponds to:

Ref document number: 185176

Country of ref document: AT

Date of ref document: 19991015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59603205

Country of ref document: DE

Date of ref document: 19991104

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20020422

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020423

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020425

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020503

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030425

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031101

EUG Se: european patent has lapsed