WO2000048933A1 - Rouleau destine a etre utilise dans une rebobineuse - Google Patents

Rouleau destine a etre utilise dans une rebobineuse Download PDF

Info

Publication number
WO2000048933A1
WO2000048933A1 PCT/FI2000/000114 FI0000114W WO0048933A1 WO 2000048933 A1 WO2000048933 A1 WO 2000048933A1 FI 0000114 W FI0000114 W FI 0000114W WO 0048933 A1 WO0048933 A1 WO 0048933A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
helical
pattern
chevron
web
Prior art date
Application number
PCT/FI2000/000114
Other languages
English (en)
Inventor
Heikki Niskanen
Original Assignee
Metso Paper, Inc.
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 Metso Paper, Inc. filed Critical Metso Paper, Inc.
Priority to AU26744/00A priority Critical patent/AU2674400A/en
Publication of WO2000048933A1 publication Critical patent/WO2000048933A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10—Materials

Definitions

  • the present invention relates to a roll according to the preamble of claim 1 for use in a winder.
  • soft covering on the outer surface of a steel roll has been used as a solution to the problems mentioned in item b).
  • a soft covering on the roll does not solve the problems mentioned in item a), because the nip formed with a small-diameter paper roll is acute, whereby a soft roll covering effectively seals the nip between the paper roll and the carrier roll thus preventing air from passing via the nip.
  • the roll according to the invention is generally characterized by what is stated in the characterizing part of claim 1.
  • the roll according to the invention is provided with a soft covering capable of overcoming the problems listed in item b) above.
  • the roll covering is made from two materials of different hardness properties so as to advantageously form a helical pattern on the outer surface of the roll, whereby the stripes of the softer material act as helical passageways along which the bag of entrained air mentioned in item a) above can pass to the other side of the winding nip and into the interply gap of the roll as through narrow channels, and finally can escape via the ends of the roll.
  • the invention is suited for use in all such winder apparatuses in which the roll being wound on a core is supported and/or loaded by at least one roll.
  • the roll according to the invention can act as a loading roll for the paper roll being wound or as the winding drum for the paper roll being wound or as a carrier roll for the paper roll being wound, whereby in the latter case the web is passed over the carrier roll to the paper roll being wound through the nip formed between the carrier roll and the paper roll being wound.
  • FIG. 1 is a schematic cross-sectional view of the covering of a roll according to the invention
  • FIG. 2 is a schematic illustration of the depression of the web into the elastic regions formed on the roll covering
  • FIG. 3 is schematic illustration of the covering pattern formed on the roll surface.
  • FIG. 4 is schematic layout of a winder apparatus in which the roll according to the invention can be employed.
  • FIG. 1 therein is shown a schematic cross-sectional view of the elastic covering 12 on the outer surface of the shell 11 of a roll according to the invention.
  • the covering 12 is comprised of two materials 12a, 12b of different hardness properties.
  • the softer material 12a and the harder material 12b form alternating bands on the shell 11 of the roll.
  • the softer material 12b is compressed so as to form a groove 13 when the paper roll being wound with the air layer entrained under the outermost ply impose a load on the shell 11 of the roll.
  • the air layer 15 remaining between the outermost ply 14a and the ply wound preceding the same can thus pass through the nip formed between the carrier roll and paper roll.
  • the softer material 12a forms herein a first chevron-like helical pattern starting symmetrically at the center of the roll with respect to its longitudinal axis and extending to both ends of the roll.
  • the harder material 12b forms respectively a second chevron- like helical pattern starting symmetrically at the center of the roll with respect to its longitudinal axis and extending to both ends of the roll such that the lands of the latter helical chevron pattern are interlaced with those of the former helical chevron pattern.
  • the land width of the helical chevron pattern made from the softer material 12a is about 20- 60 mm, advantageously about 30 mm.
  • the land width of the helical chevron pattern made from the harder material 12b is about 40-100 mm, advantageously about 50-80 mm.
  • FIG. 4 a winder apparatus embodiment in which the roll according to invention can be employed.
  • a paper roll 22 being wound is supported by two carrier rolls 20, 21 and the web W to be wound is passed on the outer surface of the periphery of one carrier roll 21, wherefrom the web W is further passed via a nip N formed between the outer surface of said carrier roll 21 and the paper roll 22 being wound onto the paper roll.
  • the other earner roll 20 is of the type according to the invention wherein the elastic covering of the roll periphery is comprised of a softer material 12a and a harder material 12b.
  • the directions of rotation of the carrier rolls 20, 21 and the paper roll 22 are denoted by arrows in the diagram.
  • the geometry of the covering pattern and the hardness properties of the elastic land areas are selected so that the groove formed by the softer material will not become blocked in the nip at small paper roll diameters.
  • the harder material must be selected to provide a certain degree of elasticity at larger paper roll diameters in order to minimize the occunence of winding defects at high nip loads.
  • the elastic covering materials of different hardness properties can be applied using, e.g., extrusion techniques.
  • the extruder can be controlled to move in the direction of the longitudinal axis of the roll at a proper speed while the roll is simultaneously rotated, thus applying a helical pattern.
  • two extruders can be operated in parallel, whereby one extruder applies the harder material and the other the softer material. With the help of two parallel-connected extruders, two adjacent helical lands of different hardness properties can be applied directly on the periphery of the roll shell.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding Of Webs (AREA)

Abstract

La surface de la coque (11) d'un rouleau de rebobineuse présente un revêtement élastique. Le revêtement élastique (12) est constitué de deux matériaux (12a, 12b) ayant des propriétés de dureté différentes. Dans un mode de réalisation préféré, le matériau mou (12a) forme un premier motif hélicoïdal de type à chevrons commençant symétriquement au centre du rouleau par rapport à son axe longitudinal et s'étendant jusqu'aux deux extrémités du rouleau. Respectivement, le matériau dur (12b) forme un second motif hélicoïdal de type à chevrons commençant symétriquement au centre du rouleau par rapport à son axe longitudinal et s'étendant jusqu'au deux extrémités du rouleau, de manière que les intersillons du second motif hélicoïdal à chevrons soient entrelacés avec les intersillons du premier motif hélicoïdal à chevrons. Le rouleau de l'invention est adapté à une utilisation dans tous les appareils à rebobineuse dans lesquels le rouleau enroulé sur une âme est porté et/ou chargé à l'aide d'au moins un rouleau.
PCT/FI2000/000114 1999-02-17 2000-02-16 Rouleau destine a etre utilise dans une rebobineuse WO2000048933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU26744/00A AU2674400A (en) 1999-02-17 2000-02-16 Roll for use in a winder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990331 1999-02-17
FI990331A FI990331A (fi) 1999-02-17 1999-02-17 Rullauslaitteessa käytettävä tela

Publications (1)

Publication Number Publication Date
WO2000048933A1 true WO2000048933A1 (fr) 2000-08-24

Family

ID=8553817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000114 WO2000048933A1 (fr) 1999-02-17 2000-02-16 Rouleau destine a etre utilise dans une rebobineuse

Country Status (3)

Country Link
AU (1) AU2674400A (fr)
FI (1) FI990331A (fr)
WO (1) WO2000048933A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209109A2 (fr) * 2000-11-18 2002-05-29 von Bronk Gummi- und Kunststofftechnik GmbH Rouleau élargisseur
WO2002049832A1 (fr) * 2000-12-18 2002-06-27 Tetra Laval Holdings & Finance S.A. Procede et dispositif permettant de produire un materiau d'emballage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240442A (en) * 1964-02-13 1966-03-15 Beloit Eastern Corp Bi-textured winder drum
EP0562266A1 (fr) * 1992-03-26 1993-09-29 J.M. Voith GmbH Machine d'enroulement pour enrouler une bande, en particulier une bande de papier
EP0683125A2 (fr) * 1994-05-19 1995-11-22 Beloit Technologies, Inc. Rouleau de support ou de pression pour un enrouleur de bobines de papier
US5785273A (en) * 1995-02-21 1998-07-28 Voith Sulzer Papiermaschinen Gmbh Apparatus for winding or unwinding webs, particularly paper webs
US5803398A (en) * 1995-09-07 1998-09-08 Eastman Kodak Company Multiple durometer pressure roller
DE19729189A1 (de) * 1997-07-08 1999-01-14 Voith Sulzer Papiermasch Gmbh Preßwalze

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240442A (en) * 1964-02-13 1966-03-15 Beloit Eastern Corp Bi-textured winder drum
EP0562266A1 (fr) * 1992-03-26 1993-09-29 J.M. Voith GmbH Machine d'enroulement pour enrouler une bande, en particulier une bande de papier
EP0683125A2 (fr) * 1994-05-19 1995-11-22 Beloit Technologies, Inc. Rouleau de support ou de pression pour un enrouleur de bobines de papier
US5785273A (en) * 1995-02-21 1998-07-28 Voith Sulzer Papiermaschinen Gmbh Apparatus for winding or unwinding webs, particularly paper webs
US5803398A (en) * 1995-09-07 1998-09-08 Eastman Kodak Company Multiple durometer pressure roller
DE19729189A1 (de) * 1997-07-08 1999-01-14 Voith Sulzer Papiermasch Gmbh Preßwalze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209109A2 (fr) * 2000-11-18 2002-05-29 von Bronk Gummi- und Kunststofftechnik GmbH Rouleau élargisseur
EP1209109A3 (fr) * 2000-11-18 2004-06-02 von Bronk Gummi- und Kunststofftechnik GmbH Rouleau élargisseur
WO2002049832A1 (fr) * 2000-12-18 2002-06-27 Tetra Laval Holdings & Finance S.A. Procede et dispositif permettant de produire un materiau d'emballage

Also Published As

Publication number Publication date
FI990331A (fi) 2000-08-18
AU2674400A (en) 2000-09-04
FI990331A0 (fi) 1999-02-17

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