EP1505201A2 - Dispositif pour le traitement d'une bande - Google Patents

Dispositif pour le traitement d'une bande Download PDF

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Publication number
EP1505201A2
EP1505201A2 EP04018281A EP04018281A EP1505201A2 EP 1505201 A2 EP1505201 A2 EP 1505201A2 EP 04018281 A EP04018281 A EP 04018281A EP 04018281 A EP04018281 A EP 04018281A EP 1505201 A2 EP1505201 A2 EP 1505201A2
Authority
EP
European Patent Office
Prior art keywords
actuators
flexible
shoe
running direction
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04018281A
Other languages
German (de)
English (en)
Other versions
EP1505201B1 (fr
EP1505201A3 (fr
Inventor
Christian Löffler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33547130&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1505201(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1505201A2 publication Critical patent/EP1505201A2/fr
Publication of EP1505201A3 publication Critical patent/EP1505201A3/fr
Application granted granted Critical
Publication of EP1505201B1 publication Critical patent/EP1505201B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • 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 device for treating a material web, in particular for influencing gloss and / or smoothness of a Paper or board web or for dewatering a paper or nonwoven web, with at least one nip between one nipple unit with at least one extended in the running direction broad nip shoe and a guided over the broad nip shoe circumferential flexible band and a complementary counter unit is formed.
  • the invention is based on the object, an improved device of the type mentioned above, in which the in the web running direction measured width of Breitnipschuhs if necessary to the extent possible simple way to change quickly.
  • one between the broad nip shoe and the circulating flexible band arranged, made of flexible and / or elastic Material existing plate and several between this and the broad nip shoe provided, in the web running direction successive actuators includes, over which the resulting nip width in the web running direction by an appropriate loading of the flexible or elastic Plate is variably adjustable, wherein one at least one actuator comprehensive inlet side actuator assembly and at least one Actuator comprehensive outlet side actuator assembly is provided the viewed in web direction each spatially of the in between lying central actuators are separated.
  • a support element used in several, in the direction of passage subdivided the fibrous web successive support element sections is.
  • the subdivision of the support element only serves here to, in the web running direction, a pressure profile with at least two consecutively To produce lying maximum pressure.
  • the inlet side actuator assembly comprises only an actuator, but in principle also several such Actuators may have.
  • the outlet-side actuator assembly preferably comprises again only one actuator. Basically, however, is also for this outlet area the use of multiple actuators conceivable.
  • Device is considered in the web running direction, the distance between the inlet side actuator assembly and the subsequent actuator greater than the distance between the middle actuators.
  • the distance between the outlet side actuator assembly and the foregoing Actuator preferably larger than the distance between the middle Actuators.
  • the distances between the middle actuators can be the same size in which case preferably the smallest possible distance is selected. at a practical practical embodiment follow this middle Actuators in web direction directly to each other.
  • the actuators of the device according to the invention separately and / or in groups controllable.
  • the area between the flexible or elastic plate and the circumferential flexible band is in particular hydrodynamic and / or hydrostatically lubricated, so that the circulating flexible band optimal can slide over the plate.
  • the actuators are at least partially by a respective cylinder / piston unit formed.
  • These actuators can For example, at least partially by a respective hydraulic cylinder / piston unit be formed.
  • the inlet and outlet side actuators at least partially each at least one extending in the transverse direction Support strip, which is used in a shoe-side transverse groove and in particular hydraulically acted upon.
  • the middle actuators can at least partially each at least a transversely extending, in particular hydraulic Include pressure bar.
  • these pressure bars each comprise two telescopically telescoped profiles. Between the two profiles a seal may be provided.
  • hydraulic pressure bars can also pressure hoses, especially in shoe-side recesses positioned pressure hoses may be provided individually can be controlled and by appropriate expansion the function Hydraulic pressure bars can take over.
  • the middle actuators can at least partially in a shoe side Be arranged recess.
  • the actuators are at least partially complementary to both Toward counter unit as well as from this away controllable.
  • the actuators at least partially radially aligned with respect to the complementary counter unit are.
  • the broad nip shoe can in particular over several in the transverse direction successive pressing units supported on an axle be acted upon.
  • the Anpressechen are preferably separated and / or group-driven. This is especially a Compensation of the axis bending occurring under load possible.
  • the flexible or elastic plate can in particular by a flexible Steel sheet or the like may be formed.
  • the flexible band is preferably made of polyurethane.
  • the Breitniptician can in particular by a Breitnipwalze with a via the flexible or elastic plate guided flexible roll shell be formed.
  • the Device according to the invention at least one Breitnipkalander.
  • Figure 1 shows a schematic representation of a between a Breitnip Anlagen 10 and a counter-roller 12 formed Breitnip 14 of a device 16 for influencing the gloss and / or smoothness of a material web, in particular, it is a paper or board web can act.
  • the wide nip unit 10 comprises at least one in the web running direction L. extended broad nip shoe 18 and a guided over the wide-nip shoe 18 circulating flexible band 20.
  • This can be wide nip unit 10 in particular by a Breitnipwalze with a on the broad nip shoe 18 or a associated with this, further under even closer to descriptive flexible or elastic plate guided flexible roll shell 20 be formed.
  • the device 16 in question may in particular be a Breitnipkalander act.
  • the flexible band 20 may be made of polyurethane, for example.
  • the wide-nip unit comprises 10 moreover one between the broad nip shoe 18 and the circulating flexible band 20 arranged plate 22 made of flexible and / or elastic material as well as several flexible ones between them or elastic plate 22 and the Breitnipschuh 18 provided, in Web running direction L successive actuators 24, over which the in the web running direction L resulting nip width by a corresponding Actuation of the flexible or elastic plate 22 variably adjustable is.
  • the flexible or elastic plate 22 may, for example be formed by a flexible sheet steel or the like.
  • an at least one actuator 24 comprehensive inlet-side actuator assembly 24 1 and at least one actuator 24 comprehensive outlet-side actuator assembly 24 2 is provided, which are considered in the web running direction L spatially separated from the intermediate central actuators 24.
  • the inlet-side actuator arrangement 24 1 and the outlet-side actuator arrangement 24 2 each comprise only a single actuator 24.
  • the distance a between the inlet-side actuator arrangement 24 1 and the following actuator 24 is greater than the distance between the central actuators 24, which in the present case have a minimum mutual distance and Web running direction L follow each other directly.
  • the considered in the web running direction L distance a 'between the outlet side actuator assembly 24 2 and the preceding actuator 24 is greater than the distance between the central actuators 24.
  • the two distances a and a' are in the present case, for example, the same size.
  • the actuators 24 are preferably separate and / or in groups controllable.
  • the area between the flexible or elastic plate 22 and the circulating flexible band 20 is in particular hydrodynamic and / or hydrostatically lubricated.
  • mechanical, hydraulic, pneumatic, electromechanical, electromagnetic and / or thermal actuators 24 may be provided.
  • the inlet-outlet side Actuators 24 each at least one extending in the transverse direction Include support strip, which is inserted into a shoe-side transverse groove 26 and in particular hydraulically acted upon.
  • the middle actuators 24 each, for example, at least one in Include transversely extending, in particular hydraulic pressure bar, the telescoped by two telescoping profiles 28, 30th are formed.
  • the pressure bars 28, 30 thus closed at the front.
  • a seal 32 may be provided between the two profiles.
  • the middle actuators 24 are in a shoe-side recess 34 arranged.
  • At least the middle actuators 24 and preferably also the incoming actuators and outlet side actuators can each be both counter-roll 12 as well as be controlled by this away.
  • the Actuators 24 with respect to the backing roll 12 to be radially aligned.
  • the wide-nip shoe 18 can cross each other over several in the transverse direction following, supported on an axis Anpress units acted upon be. These Anpressintensiveen are conveniently separated and / or Controllable in groups, so that each occurring under load Axis bending can be compensated.
  • the compressive stress in the nip can be changed quickly and very sensitively in a simple manner.
  • the inlet and outlet side actuator assemblies 24 1 , 24 2 which are spatially separated from the central actuators 24, an optimal contact of the flexible band 20 with the counter-roller 12 can be ensured in the inlet and outlet regions, respectively.

Landscapes

  • Paper (AREA)
EP20040018281 2003-08-07 2004-08-02 Dispositif pour le traitement d'une bande Expired - Lifetime EP1505201B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003136229 DE10336229A1 (de) 2003-08-07 2003-08-07 Vorrichtung zur Behandlung einer Materialbahn
DE10336229 2003-08-07

Publications (3)

Publication Number Publication Date
EP1505201A2 true EP1505201A2 (fr) 2005-02-09
EP1505201A3 EP1505201A3 (fr) 2005-02-16
EP1505201B1 EP1505201B1 (fr) 2009-03-18

Family

ID=33547130

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04102704A Withdrawn EP1505205A1 (fr) 2003-08-07 2004-06-15 Dispositif de traitement d'une bande
EP20040018281 Expired - Lifetime EP1505201B1 (fr) 2003-08-07 2004-08-02 Dispositif pour le traitement d'une bande

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04102704A Withdrawn EP1505205A1 (fr) 2003-08-07 2004-06-15 Dispositif de traitement d'une bande

Country Status (2)

Country Link
EP (2) EP1505205A1 (fr)
DE (2) DE10336229A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576682A (en) 1983-03-23 1986-03-18 Valmet Oy Long-nip press for a paper making machine
DE4322876A1 (de) 1993-07-09 1993-11-18 Voith Gmbh J M Vorrichtung zum Glätten einer Papierbahn oder Kartonbahn
US6334933B1 (en) 1999-04-14 2002-01-01 Metso Chemical Pulping Oy Press

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD218918A1 (de) * 1982-12-14 1985-02-20 Freiberg Papier Maschwerke Vorrichtung zum anpressen eines umlaufenden bandes
DE19544979B4 (de) * 1995-12-01 2006-08-03 Voith Paper Patent Gmbh Vorrichtung zum Komprimieren, Glätten und/oder Entwässern einer Faserstoffbahn
DE19617801A1 (de) * 1996-05-03 1997-11-13 Voith Sulzer Papiermasch Gmbh Preßvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576682A (en) 1983-03-23 1986-03-18 Valmet Oy Long-nip press for a paper making machine
DE4322876A1 (de) 1993-07-09 1993-11-18 Voith Gmbh J M Vorrichtung zum Glätten einer Papierbahn oder Kartonbahn
US6334933B1 (en) 1999-04-14 2002-01-01 Metso Chemical Pulping Oy Press

Also Published As

Publication number Publication date
EP1505201B1 (fr) 2009-03-18
EP1505201A3 (fr) 2005-02-16
EP1505205A1 (fr) 2005-02-09
DE502004009170D1 (de) 2009-04-30
DE10336229A1 (de) 2005-03-03

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