EP0366690A1 - Procede pour appliquer une enveloppe de cylindre non metallique - Google Patents

Procede pour appliquer une enveloppe de cylindre non metallique

Info

Publication number
EP0366690A1
EP0366690A1 EP88905768A EP88905768A EP0366690A1 EP 0366690 A1 EP0366690 A1 EP 0366690A1 EP 88905768 A EP88905768 A EP 88905768A EP 88905768 A EP88905768 A EP 88905768A EP 0366690 A1 EP0366690 A1 EP 0366690A1
Authority
EP
European Patent Office
Prior art keywords
wire
tensioning
contact surface
metallic
cover
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.)
Withdrawn
Application number
EP88905768A
Other languages
German (de)
English (en)
Inventor
Wilhelm Wanke
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
Application filed by Individual filed Critical Individual
Publication of EP0366690A1 publication Critical patent/EP0366690A1/fr
Withdrawn legal-status Critical Current

Links

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
    • D21F3/08—Pressure rolls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49874—Prestressing rod, filament or strand
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49888—Subsequently coating

Definitions

  • the invention relates to a method for applying a non-metallic roll cover, in particular for press rolls of paper machines, to the body of a roll.
  • Adequate roller presses are known from industrial application practice.
  • the use of roller presses, in which one or more of the press rollers are provided with a non-metallic roller cover, is very often found preferably in the production plants for the production of paper and cardboard.
  • non-metallic roll covers are partly from tech biological quality requirements, but in most cases mainly due to mechanical advantages.
  • the latter are, for example, chemical resistance, mechanical wear reduction of the surrounding parts such as press felts, reduction of vibrations, and others. So there is a wealth of advantages that justify making special developments in the material types as well as in the processes for producing such non-metallic roller covers.
  • the special rubber materials known under the umbrella term polyurethane have recently been used in the material types.
  • the latter particularly because of their good dimensional stability in, for example, press rolls with drainage grooves in the roll cover.
  • non-metallic roll covers In the process for the production of non-metallic roll covers, work has so far been carried out exclusively with a fixed material composite adhesion of the non-metallic roll cover on the body of the press roll. In the non-metallic roll cover itself, modifications of layer arrangements and / or chemical bond supports with partial additional support through mechanical pretensioning, for example through integrated shrink fabrics, attempt to improve the non-metallic roll cover increase .
  • the present invention is based on the object of creating a method for producing or applying a textile roller cover, from known or optionally also from new reference materials, to a roller body, whereby the stress on the non-metallic roll cover is significantly reduced by flexing under press loads.
  • the inventive method for producing or applying a non-metallic roller cover solves the task in that a clamping position with mechanical prestressing, but without material adhesion to the body or its contact surface is applied to the body or a contact surface of the body and that between the S pan ne inla ge and the roller cover a material ver federal liability is created.
  • the non-metallic roll cover receives an integrated tensioning insert instead of a fixed material bond with the body of the press roll.
  • the integrated tension insert or a tension fabric is arranged on the side of the non-metallic roll cover facing the body of the press roll.
  • the outer side of the integrated tension insert is connected to the cover material of the non-metallic roller cover by means of material composite adhesion, namely as a fixed or fixed material connection.
  • the inner side of the integrated clamping insert is preferably mechanically pretensioned on the contact surface of the body of the press roll.
  • One of the main goals of the method according to the invention for producing a non-metallic roll cover is that through the integrated tensioning insert and / or with the contact surface of the body of the press roll with the non- metallic roller cover no or only partial material adhesion occurs. Particularly in the area of the zone with subsequent press loading, it is advantageous not to have any material adhesion of the type described above.
  • part of the integrated tensioning fabric and the contact surface which preferably consists of wear-resistant material, to cover the body of the press roll with filler materials which prevent material adhesion.
  • filling materials should preferably perform two further tasks: a) to minimize or completely prevent air pockets that can be obstructed by filling the volume; b) To be resistant to shear forces with the result that movements in the micro range are opposed to no or only minimal forces.
  • the mechanical component is also optionally provided to optimize the mechanical component or to increase its stability with the structure of the integrated clamping inlay.
  • it can be provided in multiple layers as an integrated tensioning fabric.
  • the inner layer has a very strong mechanical tension to the contact surface of the body of the press roll.
  • the middle layer with less mechanical preload is intended for differential movements in the micro range, while the outer layer has a stable, fixed material bond with the reference material of the non-metallic roller cover.
  • the tensioning insert is formed by a tensioning wire which is wound onto the contact surface of the body, the outer circumference of the tensioning wire having a spiral or trapezoidally grooved surface or also on the tensioning wire itself a winding wire is wound up.
  • the windings can be close to each other or at a distance from each other and can be spiral.
  • the wound wire itself is wrapped spirally with a wire of small diameter, preferably spirally.
  • the wrapping drape is spirally wound so that If there is a gap between the individual windings, the gaps between the contact surface of the body and the tensioning wire can be filled with a filler, so that there is no adhesion or adhesion at this point to the body of the press roll.
  • Figure 1 an embodiment of a non-metallic roller cover with a tension fabric as a tension insert
  • Figure 2 another embodiment of a non-metallic roller cover with a tension wire as a tension insert
  • Figure 3 Enlargement of a tension wire with a wrapping wire.
  • the body 10 of a press roll has a coating 11 which forms the contact surface 12 with the non-metallic roll cover.
  • a tensioning fabric 20 can be seen over this contact surface 12 as tensioning insert Drawing is shown in three layers, namely with inner layer 21, middle layer 22 and outer layer 23.
  • inner layer 21, middle layer 22 and outer layer 23 In the area of the inner layer 21 and the middle layer 22 of the integrated tensioning fabric 20, filling materials 30 can be seen, so that a bond to the body 10 is avoided.
  • the reference material 40 which can be made in one or multiple layers, of the non-metallic roller cover extends into the area of the outer layer 23 of the integrated tensioning fabric 20 and forms a fixed material connection with this in the method according to the invention for producing a non-metallic roller cover.
  • the fixed material connection between the non-metallic roll cover and the tensioning insert can be made in a simple manner directly on the application of the roll cover to the body 10 of the press roll, depending on the type of roll cover. If the roll cover e.g. made from rubber or from a rubber-like material, it is vulcanized on, during vulcanization material penetrating accordingly into the outer layer 23 of the tensioning fabric 20.
  • FIGS. 2 and 3 An exemplary embodiment is shown in FIGS. 2 and 3 represents, wherein the tensioning insert is formed from a tension wire 31 which is wound spirally on the body 10 of the press roll with a small distance between the individual windings.
  • the tensioning wire 31 itself is additionally provided with a winding wire 32, which is also wound spirally along the tensioning wire 31, the individual windings also being spaced from one another here.
  • This configuration can be seen in FIG. 3, only a small part of the circumference of the body 10 being shown.
  • the wrapping wire 32 which is of significantly smaller diameter than the tensioning wire 31, has a rough surface on the outside in such a way that when the roller cover 40 is applied, it penetrates into the spaces between the individual winding layers and thus adheres firmly brings with them, which is practically supported by a positive connection.
  • the space between the individual windings of the wrapping wire 32 is filled with a filler 33.
  • a material 34 can also be applied as a contact or binding lock so that there is no liability here.
  • the outer circumference of the tensioning wire itself can also be provided with a spiral or trapezoidal grooved surface for adhesion with the roller cover 40.

Landscapes

  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

Dans un procédé pour appliquer une enveloppe de cylindre non métallique, notamment pour des cylindres presseurs de machines à papier, sur le corps d'un cylindre, on applique sur le corps (10) ou sur une surface de contact (12) de ce dernier une garniture de tension (20, 31, 32) par précontrainte métallique mais sans adhérence de la matière avec le corps (10) ou sa surface de contact (12). On crée une adhérence matière entre la garniture de tension (20, 31, 32) et l'enveloppe de cylindre (40).
EP88905768A 1987-06-24 1988-06-23 Procede pour appliquer une enveloppe de cylindre non metallique Withdrawn EP0366690A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3720800 1987-06-24
DE3720800 1987-06-24

Publications (1)

Publication Number Publication Date
EP0366690A1 true EP0366690A1 (fr) 1990-05-09

Family

ID=6330163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905768A Withdrawn EP0366690A1 (fr) 1987-06-24 1988-06-23 Procede pour appliquer une enveloppe de cylindre non metallique

Country Status (5)

Country Link
US (1) US4932115A (fr)
EP (1) EP0366690A1 (fr)
JP (1) JPH03500067A (fr)
FI (1) FI882635A (fr)
WO (1) WO1988010336A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7300013B2 (en) * 2005-02-16 2007-11-27 Key Safety Systems, Inc. Seat belt retractor with overmolded inertia sensor mass
WO2009068551A1 (fr) * 2007-11-28 2009-06-04 Basf Se Séchage continu/membrane speek

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US111449A (en) * 1871-01-31 Improvement in the manufacture of rubber rolls
US1232053A (en) * 1914-01-05 1917-07-03 George A Lawrence Yielding roll.
US2312853A (en) * 1940-02-26 1943-03-02 Toland William Craig Applicator roll
BE470774A (fr) * 1941-04-19
DE865251C (de) * 1943-10-19 1953-02-02 Dornbusch & Co Weichwalze mit Gummiueberzug fuer Praegekalander und Verfahren zur Herstellung der Walze
GB1264549A (fr) * 1969-02-25 1972-02-23
IN146438B (fr) * 1976-01-08 1979-06-02 Strachan & Henshaw Ltd
US4250605A (en) * 1978-01-19 1981-02-17 The Carborundum Company Biaxially stressed fluorinated polymer roll cover and method for making same
US4551894A (en) * 1983-10-17 1985-11-12 Beloit Corporation Urethane covered paper machine roll with vented interface between roll and cover

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8810336A1 *

Also Published As

Publication number Publication date
US4932115A (en) 1990-06-12
FI882635A (fi) 1988-12-25
WO1988010336A1 (fr) 1988-12-29
JPH03500067A (ja) 1991-01-10
FI882635A0 (fi) 1988-06-03

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