EP1766128B1 - Bandage de cylindre - Google Patents

Bandage de cylindre Download PDF

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Publication number
EP1766128B1
EP1766128B1 EP05752581A EP05752581A EP1766128B1 EP 1766128 B1 EP1766128 B1 EP 1766128B1 EP 05752581 A EP05752581 A EP 05752581A EP 05752581 A EP05752581 A EP 05752581A EP 1766128 B1 EP1766128 B1 EP 1766128B1
Authority
EP
European Patent Office
Prior art keywords
outer layer
roll sleeve
inner layer
flexible roll
lies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05752581A
Other languages
German (de)
English (en)
Other versions
EP1766128A1 (fr
Inventor
Uwe Matuschczyk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1766128A1 publication Critical patent/EP1766128A1/fr
Application granted granted Critical
Publication of EP1766128B1 publication Critical patent/EP1766128B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • 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
    • D21F3/029—Wet presses using special water-receiving belts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls

Definitions

  • the invention relates to a flexible roll shell of a press roll for treating a paper, cardboard, tissue or other fibrous web in a machine for producing and / or finishing the same with internal support elements consisting of at least two circumferential layers wherein the radially inner inner layer harder than the outer layer is outer.
  • the roll shell is pressed by the support elements to form a press nip in the direction of a counter roll.
  • the support elements In particular, at pressing pressures of more than 15 MPa, damage to the roll shell often occurs during contact with the support elements.
  • the support elements have concave pressing surfaces which press the roll mantle to the cylindrical mating roll.
  • the object of the invention is therefore to extend its life, especially at high compression pressures while ensuring sufficient flexibility of the roll shell.
  • the object has been achieved in that the inner layer is thicker than the outer layer and the inner layer includes reinforcing elements.
  • the inner layer is protected against damage during contact with the backing elements, even at high compression pressures of more than 15 MPa, because of its higher hardness. As a result, the life of the roll shell is considerably extended.
  • the hardness of the inner layer should be between 40 and 80, preferably between 50 and 60 Shore D and the hardness of the outer layer between 70 and 95 Shore A.
  • the thickness of the inner layer should be a maximum of 4 mm and preferably between 3 and 3.7 mm.
  • the thickness of the outer layer should preferably be between 2 and 3 mm. In press rolls for smoothing the fibrous web, the thickness of the outer layer is determined independently of the preferred range of the expected wear.
  • Press rolls for dewatering the fibrous web often have outer grooves and / or blind holes for receiving the squeezed water. Therefore, the thickness of the outer layer should definitely be greater than the depth of the blind holes or grooves.
  • the inner layer is thicker than the outer layer, there is a balance between the hardness of the inner layer and the flexibility of the roll shell.
  • At least the inner layer preferably also the outer layer consist of a plastic.
  • polyurethane is suitable.
  • the two layers are poured over different casting heads largely simultaneously.
  • the second layer takes place only after the curing of the first layer and possibly the addition of an adhesion promoter between the layers.
  • the inner layer includes reinforcing elements, preferably in the form of a fabric and / or thread scrim.
  • reinforcing elements preferably in the form of a fabric and / or thread scrim.
  • the outer layer should have no reinforcing elements to ensure sufficient flexibility of the roll mantle.
  • the modulus of elasticity of the inner layer is greater than that of the outer layer.
  • the smallest possible difference in the modulus of elasticity between the plastic of the inner layer and the reinforcing elements reduces the shear forces at the interfaces between them and thus prolongs the service life.
  • the hardness of the outer layer is between 85 and 90 Shore A.
  • the roughness of the surface of the outer layer should be less than 2 microns.
  • the hardness of the outer layer is between 90 and 95 Shore A.
  • the press nip formed by a press roll and a cylindrical counter roll 4, the fibrous web 1 is guided together with a dewatering belt 2 for receiving the squeezed out water.
  • the press nip is designed to be extended in the interest of intensive but gentle dewatering.
  • the flexible roll shell 3 of the press roll passes over a support element 5 with concave pressing surface.
  • the support element 5 is supported on the support 6 of the press roll and presses the roll shell 3 to the counter roll 4 out.
  • the support element 5 is hydrostatically lubricated and has oil pressure pockets.
  • the Roll shell 3 In order to prevent, especially at pressing pressures of more than 10 MPa, in particular more than 20 MPa, that when passing through a pile of pulp web residues and / or impurities through the press nip of the roll shell 3 is pressed and damaged in the oil pressure pockets of the support member 5, the Roll shell 3 a special construction.
  • the roll shell 3 consists, as in the FIGS. 1 to 4 To avoid damage to the inner layer 7, in particular in the above-mentioned cases and thus to extend the life of the roll shell 3, the inner layer 7 is harder than the outer layer 8 is formed.
  • the inner layer 7 includes reinforcing elements 9 in the form of a thread scrim consisting of circumferentially extending and transverse threads.
  • the volume of the threads is about 20 to 30% of the volume of the inner layer 7.
  • the inner layer 7 has a hardness between 50 and 60 Shore D and a thickness between 3 and 3.7 mm.
  • the thickness of the outer layer 8 is between 2 and 3 mm, the inner layer 7 being thicker than the outer layer 8.
  • roll shell 3 is used in press rolls for smoothing the fibrous web 1, which is why the roughness of the surface, which comes into contact with the fibrous web 1, is less than 2 microns. Since in the smoothing generally the fibrous web 1 is guided solely by the press nip and the counter-roller 4 is heated, the roll shell 3 must be protected from direct contact with the counter-roller 4. Therefore, the outer diameter of the outer layer 8 decreases at the edge of the press roll outside the contact area with the fibrous web 1. This can be seen so far that the outer layer 8 to the end of the press roll completely disappears.
  • the hardness of the outer layer 8 is between 85 and 90 Shore A.
  • press jackets 3 are used in press rolls for dewatering the fibrous web 1.
  • these roll coats 3 have outside blind holes 11 and circumferentially extending grooves 10th
  • the depth of these blind holes 11 and grooves 10 is less than the thickness of the outer layer 8 so as not to weaken the inner layer 7.
  • the hardness of the outer layer is between 90 and 95 Shore A.
  • the modulus of elasticity of the inner layer 7 is higher than that of the outer layer 8.

Landscapes

  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Soil Working Implements (AREA)
  • General Preparation And Processing Of Foods (AREA)

Claims (14)

  1. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour le traitement d'une bande de papier, carton, papier-tissu ou d'une autre bande fibreuse (1) dans une machine pour sa fabrication et/ou son amélioration, avec des éléments de support (5) situés à l'intérieur et constitués d'au moins deux couches périphériques, la couche interne (7) située radialement à l'intérieur étant plus dure que la couche externe (8) située à l'extérieur,
    caractérisée en ce que
    la couche interne (7) est plus épaisse que la couche externe (8) et la couche interne inclut des éléments de renforcement (9).
  2. Enveloppe de cylindre flexible (3) selon la revendication 1, caractérisée en ce que la dureté de la couche interne (7) est comprise entre 40 et 80, de préférence entre 50 et 60 Shore D.
  3. Enveloppe de cylindre flexible (3) selon la revendication 1 ou 2, caractérisée en ce que la dureté de la couche externe (8) est comprise entre 70 et 95 Shore A.
  4. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'épaisseur de la couche interne (7) vaut au maximum 4 mm et de préférence est comprise entre 3 et 3,7 mm.
  5. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'épaisseur de la couche externe (8) est comprise entre 2 et 3 mm.
  6. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins la couche interne (7), et de préférence aussi la couche externe (8), se composent de plastique.
  7. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce que la proportion des éléments de renforcement (9) par rapport au volume de la couche interne (7) est comprise entre 5 et 30 %.
  8. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce que la couche externe (8) ne possède pas d'éléments de renforcement (9).
  9. Enveloppe de cylindre flexible (3) selon l'une quelconque des revendications précédentes, caractérisée en ce que le module d'élasticité de la couche interne (7) est supérieur au module d'élasticité de la couche externe (8).
  10. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour lisser la bande fibreuse (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la dureté de la couche externe (8) est comprise entre 85 et 90 Shore A.
  11. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour lisser la bande fibreuse (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la rugosité de la surface de la couche externe (8) est inférieure à 2 microns.
  12. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour lisser la bande fibreuse (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le diamètre extérieur de la couche externe (8) au bord du cylindre de presse est plus petit à l'extérieur de la région de contact avec la bande fibreuse (1).
  13. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour déshydrater la bande fibreuse (1) selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la dureté de la couche externe (8) est comprise entre 90 et 95 Shore A.
  14. Enveloppe de cylindre flexible (3) d'un cylindre de presse pour déshydrater la bande fibreuse (1), comprenant des gorges (10) disposées à l'extérieur et/ou des alésages borgnes (11) selon l'une quelconque des revendications 1 à 9 et 13, caractérisée en ce que l'épaisseur de la couche externe (8) est supérieure à la profondeur des alésages borgnes (11) ou des gorges (10).
EP05752581A 2004-07-13 2005-06-03 Bandage de cylindre Not-in-force EP1766128B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004033751A DE102004033751A1 (de) 2004-07-13 2004-07-13 Walzenmantel
PCT/EP2005/052550 WO2006005651A1 (fr) 2004-07-13 2005-06-03 Bandage de cylindre

Publications (2)

Publication Number Publication Date
EP1766128A1 EP1766128A1 (fr) 2007-03-28
EP1766128B1 true EP1766128B1 (fr) 2008-03-12

Family

ID=35457625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05752581A Not-in-force EP1766128B1 (fr) 2004-07-13 2005-06-03 Bandage de cylindre

Country Status (6)

Country Link
US (1) US20070281843A1 (fr)
EP (1) EP1766128B1 (fr)
JP (1) JP4858992B2 (fr)
AT (1) ATE389056T1 (fr)
DE (2) DE102004033751A1 (fr)
WO (1) WO2006005651A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20040202A1 (it) * 2004-09-30 2004-12-30 Perini Fabio Spa Camicia intercambiabile per rulli goffratori o simili, metodo per la sua realizzazione, e rullo comprendente detta camicia
JP3946221B2 (ja) * 2004-11-30 2007-07-18 ヤマウチ株式会社 製紙用弾性ベルト
GB2455175B (en) * 2008-10-13 2012-12-26 Richard Hough Ltd Improvements in or relating to rolls
WO2014191188A1 (fr) * 2013-05-27 2014-12-04 Voith Patent Gmbh Enveloppe de compression pour rouleau de presse à sabot
EP3913132A1 (fr) * 2020-05-20 2021-11-24 Valmet Technologies Oy Bande pour un rouleau à bande et son utilisation

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754909A (fr) * 1969-08-14 1971-01-18 Kanegafuchi Spinning Co Ltd Cuir artificiel et procede et appareil pour sa fabrication
US3600779A (en) * 1969-12-12 1971-08-24 Allis Chalmers Mfg Co Press roll with tapered grooves
JPS57118898A (en) * 1981-01-14 1982-07-23 Kinyoushiya:Kk Roll for press
JPS63501158A (ja) * 1985-10-03 1988-04-28 ベロイト　コーポレーション 広巾ニッププレス用支持ブランケット
DE3715153A1 (de) * 1987-05-07 1988-12-01 Voith Gmbh J M Verstaerkter pressmantel fuer eine presseinrichtung zur behandlung bahnfoermigen gutes, wie z. b. von papierbahnen, sowie verfahren und vorrichtung zu seiner herstellung
FI890953A (fi) * 1989-02-28 1990-08-29 Valmet Paper Machinery Inc Vals eller valsbelaeggning i cellulosamaskin, pappersmaskin eller efterbehandlingsmaskin foer papper och foerfarande foer framstaellning av denna samt anvaendning av denna.
DE4411620C2 (de) * 1994-04-02 2001-05-31 Voith Sulzer Papiermasch Gmbh Preßmantel und Verfahren zur Herstellung eines Preßmantels
DE4411621A1 (de) * 1994-04-02 1995-10-05 Voith Sulzer Papiermasch Gmbh Preßmantel
SE502960C2 (sv) * 1994-06-15 1996-02-26 Nordiskafilt Ab Albany Arrangemang för kalandrering
DE4438354A1 (de) * 1994-10-27 1996-05-02 Voith Sulzer Papiermasch Gmbh Preßmantel und Verfahren zur Herstellung eines Preßmantels
DE4443598C2 (de) * 1994-12-07 2000-05-25 Voith Sulzer Papiermasch Gmbh Verfahren zur Herstellung eines Preßmantels
CA2198608A1 (fr) * 1995-06-28 1997-01-16 Hans-Peter Sollinger Procede et dispositif d'enroulement continu d'une bande continue
US5777650A (en) * 1996-11-06 1998-07-07 Tektronix, Inc. Pressure roller
DE19654197A1 (de) * 1996-12-23 1998-06-25 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Faserstoffbahn
DE19716887A1 (de) * 1997-04-22 1998-10-29 Voith Sulzer Papiermasch Gmbh Wickelmaschine
DE19860099A1 (de) * 1998-12-23 2000-07-06 Voith Sulzer Papiertech Patent Preßmantel und Verfahren zur Herstellung
JP3698984B2 (ja) * 2000-11-10 2005-09-21 ヤマウチ株式会社 シュープレス用ベルト
SE518033C2 (sv) * 2000-12-18 2002-08-20 Tetra Laval Holdings & Finance Sätt och anordning vid framställning av ett förpackningsmaterial
DE10151485A1 (de) * 2001-10-18 2003-05-08 Schaefer Kg Gummiwalzenfabrik Verfahren zur Herstellung eines Preßmantels einer Schuhpresse oder eines Preßwalzenbezuges
JP3825435B2 (ja) * 2003-09-04 2006-09-27 ヤマウチ株式会社 プレスベルトおよびシュープレスロール

Also Published As

Publication number Publication date
WO2006005651A1 (fr) 2006-01-19
EP1766128A1 (fr) 2007-03-28
DE102004033751A1 (de) 2006-02-02
ATE389056T1 (de) 2008-03-15
US20070281843A1 (en) 2007-12-06
JP4858992B2 (ja) 2012-01-18
JP2008506856A (ja) 2008-03-06
DE502005003221D1 (de) 2008-04-24

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