[go: up one dir, main page]

WO1998012381A1 - Rouleau de guidage d'une bande mobile - Google Patents

Rouleau de guidage d'une bande mobile Download PDF

Info

Publication number
WO1998012381A1
WO1998012381A1 PCT/FI1997/000561 FI9700561W WO9812381A1 WO 1998012381 A1 WO1998012381 A1 WO 1998012381A1 FI 9700561 W FI9700561 W FI 9700561W WO 9812381 A1 WO9812381 A1 WO 9812381A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
cylinder
axle
bearings
mantle tube
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.)
Ceased
Application number
PCT/FI1997/000561
Other languages
English (en)
Inventor
Kai Jokinen
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FI963710A external-priority patent/FI108555B/fi
Priority claimed from FI972400A external-priority patent/FI972400A0/fi
Application filed by Individual filed Critical Individual
Priority to DE69717298T priority Critical patent/DE69717298T2/de
Priority to EP97942045A priority patent/EP0932723B1/fr
Priority to AT97942045T priority patent/ATE228186T1/de
Publication of WO1998012381A1 publication Critical patent/WO1998012381A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0073—Accessories for calenders
    • D21G1/0086—Web feeding or guiding devices

Definitions

  • a spreader roll used in contex with paper machine calenders, by means of which the travel of paper web can be guided.
  • the roll comprises three cylinders side by side, each cylinder individually fitted with bearings on a support axle running through all three of them.
  • the farthermost cylinders are so fitted with the bearings that the outmost bearings can be moved slightly sideward from the centre line of the support axle.
  • the three-component roll becomes a construction where the midmost roll is rotating totally around the support axle centre line, but the farthermost rolls can be adjusted into a slightly deflected position, whereby the whole roll axis of rotation is a broken line, but only with a slight change of direction.
  • the bearings used in the farthermost rolls have been ball bearings and adjustment has been possible in moving another journal box.
  • the objective of the invention is to eliminate the discontinuities from the roll an this is reached m using reinforced plastic as roll material or a similar composite construction, of which a uniform mantle is made fitted from its ends and most suitably also between them with thrust bearings.
  • the proposed material allows rotation around a slightly curved rotation axis. During rotation the mantle is subjected to alternating stress due to continuous bending. Since in used rolls the required deflection is small, for instance m a six meter roll the deflection of the centre at the roll end is appr. 1 cm, by which such a small spreading during roll rotation is produced that it does not exceed the spreading value of 0,1° permitted for the mantle material.
  • An adjustment carried out with a roll as per this invention is ideal for paper web.
  • a curved and continuous profile is produced on the line where the web touches the roll.
  • the roll is light and inexpensive to manufacture.
  • the mantle curvation can be easily adjusted and fitting with bearings is easily done on one straight or on several straight axles.
  • Fig. 1 is a side section of the roll
  • Fig. 2 is a side section of the roll, second embodiment
  • Fig. 3 is a side section of the roll, third embodiment
  • Figure 1 shows roll 1 of composite construction with a mantle tube 1.
  • the mantle is cylindrical with a standard sized diameter.
  • an axle 2 known as such, which is not rotated and which is propped m its position.
  • Axle 2 is not moved during adjustment by means of which the outer profile of the roll is altered.
  • the middle portion of the axle has an enlargment m order to improve its sturdi- ness.
  • Mantle 1 is a uniform tube.
  • one end of the roll is illustrated fitted with an adjustable bearing support different from the one in the other roll end.
  • an adjustable bearing support different from the one in the other roll end.
  • bushing 5 In the solution to the left is the end of bushing 5 that supports bearing 4 fitted by a support joint 8 to support axle 2 inside roll 1.
  • Bushing 5 partly extrudes from the roll and by means of adjusting screw 7 the rotation centre of bushing 5 and as well as of bearing 4 is deflected from the support axle centre.
  • the rotation centre of the bearing is on curved line 12 presenting simulataneously the centre line of the bent roll.
  • Bushing 5 must fit firmly m place on axle 2 which means that in addition to adjusting screw 7 bushing 5 must be made immobile by other supporting means as soon as the proper adjustment status has been determined.
  • the embodiment to the right in figure 1 shows how bushing 5 is fixed on axle 2 by means of ball joint 3. In this case the rotation of bushing 5 is most suitably prevented by means of adjusting screws 7 running through axle 2.
  • mantle 1 of many meters length and supported by four bearings is curved by adjusting the outermost bearing supports into an externally even curvation without any spots of discontinuity.
  • the curvations in practice are so small that a mantle of composite construction can take completely the existing bending stress.
  • the mantle must bend twice over a straight line m both directions, i.e. once to the tensile stress state and once to the compression state.
  • the mantle is affected by alternatin stress which, however, may not exceed the permitted spreading value of 0,lo, i.e. the limit given for composite materials .
  • Figure 2 shows a roll of composite construction with a mantle tube 1.
  • the mantle is cylindrical with a diametre of standard size.
  • Mantle 1 is a uniform tube.
  • the roll construction rests on two firm axles 2a and 2b.
  • bushing 5 is a bearing solution fastened by joint 8 that includes a fulcrum pin to axle 2a within mantle 1.
  • the pin of joint 8 goes through axle 2a so that its both ends reach bushing 5.
  • bushing 5 can be turned with respect to axle 2a, whereby bearings 4 form a pair of power bending the mantle tube.
  • the rotation centre of bearings 4 is on curved line 12 presenting simultaneously the centre line of the bent mantle.
  • bushing 5 to axle 2 can be improved in using similar extra screws installed beside screw 7. Screws turnable from differing directions from bushing 5 against support axle 2a can be used.
  • the embodiment to the right in figure 2 shows how bushing 5 is fixed to axle 2b by means of a ball joint 3. In this case the rotation of bushing 5 is most suitably prevented by means of adjusting screws 7 through axle 2b.
  • bushings 5 are directly fixed to fastenings 14,15,16,17,18 at the roll ends.
  • the fastenings keep the bushings non-rotating but allow turning them around joint 15 m order to bend the mantle.
  • the arrangement is turned activating bracket 16 by means of force F.
  • a proper way is, for instance, to convay screw force T to bracket 16 turning screw 18, whereby bushings 5 also retain their accurately adjusted angle- position when part 14 is locked and made immobile by the screw.
  • the mantle material is of glass fibre construction or of carbon fibre epoxy composite construction, which makes the mantle light and inexpensive to manufacture.
  • the paper web moving on the mantle rotates the mantle and the tension force of the paper web works as mantle load, the tension force being relatively small, only a few dozens of kiloponds per metre.

Landscapes

  • Paper (AREA)
  • Escalators And Moving Walkways (AREA)
  • Knitting Machines (AREA)
  • Steering Controls (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un rouleau guidant le déplacement d'une bande de papier, notamment dans une machine à papier, dont au moins une partie du tube d'enveloppe extérieure (1) tourne de manière excentrique par rapport à la ligne centrale (12) du rouleau, l'enveloppe extérieure est uniforme et présente une construction en matériau plastique renforcé ou composite similaire, ledit rouleau étant doté de paliers au moyen d'éléments formant cylindre réglable (5). L'adaptation de paliers sur les deux extrémités du tube d'enveloppe extérieure (1) comprend ledit élément formant cylindre, tel qu'un manchon (5), lequel ne tourne pas et sur lequel sont ménagés, à une certaine distance l'un de l'autre, deux paliers (4a, 4b) destinés à faire tourner le tube d'enveloppe extérieure (1) et à défléchir ledit tube d'enveloppe extérieure en le courbant et en plaçant, entre l'élément de cylindre et l'axe (2), un joint (8, 3) permettant le réglage de la direction dudit élément de cylindre par rapport audit axe ou au corps de fixation.
PCT/FI1997/000561 1996-09-19 1997-09-19 Rouleau de guidage d'une bande mobile Ceased WO1998012381A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69717298T DE69717298T2 (de) 1996-09-19 1997-09-19 Walze zum führen einer beweglichen warenbahn
EP97942045A EP0932723B1 (fr) 1996-09-19 1997-09-19 Rouleau de guidage d'une bande mobile
AT97942045T ATE228186T1 (de) 1996-09-19 1997-09-19 Walze zum führen einer beweglichen warenbahn

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI963710 1996-09-19
FI963710A FI108555B (fi) 1996-09-19 1996-09-19 Liikkuvan rainan kulkua ohjaava tela
FI972400 1997-06-06
FI972400A FI972400A0 (fi) 1997-06-06 1997-06-06 Vals styrande en loepande banas gaong

Publications (1)

Publication Number Publication Date
WO1998012381A1 true WO1998012381A1 (fr) 1998-03-26

Family

ID=26160210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000561 Ceased WO1998012381A1 (fr) 1996-09-19 1997-09-19 Rouleau de guidage d'une bande mobile

Country Status (4)

Country Link
EP (1) EP0932723B1 (fr)
AT (1) ATE228186T1 (fr)
DE (1) DE69717298T2 (fr)
WO (1) WO1998012381A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111334A1 (fr) * 2003-06-13 2004-12-23 Stowe Woodward Ag Rouleau elargisseur
WO2007033844A1 (fr) * 2005-09-20 2007-03-29 Voith Patent Gmbh Rouleau deplisseur
US7824320B2 (en) 2005-09-20 2010-11-02 Voith Patent Gmbh Expander roller
US7867155B2 (en) 2005-09-20 2011-01-11 Voith Patent Gmbh Expander roller
EP2405048A1 (fr) * 2010-07-07 2012-01-11 Karl Genthe Cylindre d'étirage pour matériaux fins en forme de bande
WO2015104362A1 (fr) * 2014-01-13 2015-07-16 Voith Patent Gmbh Rouleau déplisseur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341119A1 (de) 2003-09-05 2005-03-31 Voith Paper Patent Gmbh Breitstreckwalze
DE10356045B3 (de) * 2003-12-01 2005-06-02 Stowe Woodward Ag Walze zum Führen einer beweglichen Warenbahn

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470183A (en) * 1981-06-03 1984-09-11 Oy W/a/ rtsil/a/ Ab Roll construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470183A (en) * 1981-06-03 1984-09-11 Oy W/a/ rtsil/a/ Ab Roll construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111334A1 (fr) * 2003-06-13 2004-12-23 Stowe Woodward Ag Rouleau elargisseur
WO2007033844A1 (fr) * 2005-09-20 2007-03-29 Voith Patent Gmbh Rouleau deplisseur
US7824320B2 (en) 2005-09-20 2010-11-02 Voith Patent Gmbh Expander roller
US7862492B2 (en) 2005-09-20 2011-01-04 Voith Patent Gmbh Expander roller
US7867155B2 (en) 2005-09-20 2011-01-11 Voith Patent Gmbh Expander roller
EP2405048A1 (fr) * 2010-07-07 2012-01-11 Karl Genthe Cylindre d'étirage pour matériaux fins en forme de bande
WO2015104362A1 (fr) * 2014-01-13 2015-07-16 Voith Patent Gmbh Rouleau déplisseur
US9803318B2 (en) 2014-01-13 2017-10-31 Voith Patent Gmbh Spreader roll

Also Published As

Publication number Publication date
ATE228186T1 (de) 2002-12-15
DE69717298T2 (de) 2003-08-14
EP0932723A1 (fr) 1999-08-04
EP0932723B1 (fr) 2002-11-20
DE69717298D1 (de) 2003-01-02

Similar Documents

Publication Publication Date Title
JPH0229797B2 (fr)
US3604087A (en) Antideflection roll
EP0932723B1 (fr) Rouleau de guidage d'une bande mobile
JP4077153B2 (ja) ウェブ状材料用に曲成可能なロール
US4470183A (en) Roll construction
CN100434199C (zh) 舒展辊
KR20060018810A (ko) 스프레더 롤
US6494823B2 (en) Take-out roll, spreader roll, or equivalent for a web-like material
CA2340870C (fr) Cylindre pouvant etre replie avec une chemise en composite
US4325784A (en) Combined size press and breaker stack and method
US6409643B2 (en) Take-out leading roll, spreader roll, or equivalent for a web-like material
CN101096248A (zh) 用于运输和扩幅带材的轧辊
US20080058188A1 (en) Roll
US6627044B2 (en) Web guide in a paper machine/board machine
US6521092B2 (en) Beam that can be bent for use in a paper or board machine
FI108555B (fi) Liikkuvan rainan kulkua ohjaava tela
CA2224221C (fr) Agencement de palier et element d'accouplement d'un rouleau repartiteur
US20070293381A1 (en) Bendable Cylinder
FI66471B (fi) Valskonstruktion
US6846385B2 (en) Suspension arrangement for a roll
ITVA20070031A1 (it) Cilindro allargatore per nastro continuo

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA CN JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997942045

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998514328

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1997942045

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1997942045

Country of ref document: EP