EP0396036A1 - Band für Papiermaschinen - Google Patents

Band für Papiermaschinen Download PDF

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Publication number
EP0396036A1
EP0396036A1 EP90108042A EP90108042A EP0396036A1 EP 0396036 A1 EP0396036 A1 EP 0396036A1 EP 90108042 A EP90108042 A EP 90108042A EP 90108042 A EP90108042 A EP 90108042A EP 0396036 A1 EP0396036 A1 EP 0396036A1
Authority
EP
European Patent Office
Prior art keywords
carrier web
additional
thread
threads
band
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Withdrawn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
EP90108042A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eberhard Dr. Janssen
Wolfgang Schäfer
Hans-Peter Richter
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.)
Heimbach GmbH and Co KG
Original Assignee
Thomas Josef Heimbach and Co 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 Thomas Josef Heimbach and Co GmbH filed Critical Thomas Josef Heimbach and Co GmbH
Publication of EP0396036A1 publication Critical patent/EP0396036A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24281—Struck out portion type
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24281—Struck out portion type
    • Y10T428/24289—Embedded or interlocked
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249922—Embodying intertwined or helical component[s]
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249923—Including interlaminar mechanical fastener
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a belt for use in paper machines, in particular in wet presses with an extended press nip, which has a flexible, liquid-impermeable belt layer which is smooth on the back and in the front of which there is a carrier web which has cavities, for example a fabric, knitted fabric or a wire link belt is partially embedded.
  • wet presses with an extended press nip so-called “shoe presses” have been developed in which the paper web is exposed to high press pressure over a longer distance and thus for a correspondingly longer time, so that it runs out of the wet press with a higher dry content.
  • special tapes are used, one have flexible, liquid-impermeable band layer, which is smooth on the back. With this smooth back, they run over a press shoe that is hydraulically loaded and presses the belt in the direction of an opposite pressure roller.
  • the paper web to be dewatered is passed between this pressure roller and the belt, the paper web being accompanied on at least one side by a running wet felt which removes the squeezed out water.
  • wire link belts EP-PS 0 098 502 or warp-knitted fabrics (EP OS 0 290 653) were also possible.
  • the wire coils coupled together in the longitudinal direction Let run and in this wire coils additionally insert multi and / or monofilaments to absorb the longitudinal forces (EP-PS 0 098 502). They should expediently be embedded in the strip layer in order to improve the stability of the strip and also the retention of the wire coils in the strip layer.
  • the invention has for its object a tape of the type mentioned at the outset in such a way that the bond between the strip layer and the carrier web is not endangered under pressure and flexing stress and nevertheless there is a high resistance to tearing the carrier web out of the strip layer.
  • the band additionally contains at least one additional thread in its band layer, which progresses in the running direction over the entire length of the band, but not straight, but zigzag-shaped, so that its individual thread paths between the reversal points are essentially transverse to the running direction of the Tape.
  • the additional thread runs partly in the area between the carrier web and the back of the belt and partly through the carrier web, so it is integrated with it.
  • an enormous pull-out strength of the carrier web is achieved without it having to be inserted deep into the strip layer.
  • the tape has a higher resistance in the transverse direction, in particular an improved resistance to tensile and flexing stress. Such stresses occur in particular at the lateral boundaries of the pressure shoe and can lead to bulging of the band.
  • the thread sections located outside the carrier web are at a distance from the carrier web, since this promotes the pull-out strength.
  • the additional thread or at least one of the additional threads has a helical course with a reversal of direction between two thread sections. This means that a thread section runs outside the carrier web and, after a reversal of direction, passes through the carrier web and comes to lie outside the carrier web again after another reversal of direction.
  • the additional thread or at least one of the additional threads extends between the edges of the band. However, it should be ensured that the additional thread in question does not protrude beyond the edge of the carrier web, but rather that the direction is reversed within the lateral boundaries of the carrier web.
  • fabrics in particular multi-layer fabrics, knitted fabrics and in particular wire link belts, are suitable as the carrier web.
  • the preferred case are those wire link belts which are composed of wire helices extending transversely to the running direction of the belt, since they can easily be connected at the seam with the help of a coupling wire when the belt is finally formed.
  • the additional thread or the additional threads each run or run with one thread section through a wire coil and with the following thread section after a reversal of direction over the next wire coil.
  • the tear-out strength of the carrier web can also be improved in that longitudinal threads extending outside the carrier web are embedded in the band layer and extend between the carrier web and thread sections of the additional threads running outside the carrier web. In this way, a crossing layer of thread is created outside the carrier web, but within the band layer, which is connected to the carrier web via the additional thread or the additional threads and therefore further improves the hold of the carrier web in the band layer.
  • the longitudinal threads improve the longitudinal stability and the flex resistance in this direction, in particular if - as is also proposed - the longitudinal threads are connected to one another at their ends in a tensile manner, that is to say they run all around in the running direction of the belt.
  • the result is a tape that can cope particularly well with the stresses in wet presses with an extended press nip, above all in terms of longitudinal and transverse tensile strength, resistance to flexing and tear resistance.
  • connection between the longitudinal threads and carrier web can also be improved in that the longitudinal threads with the Carriers are periodically connected or inserted into them. Furthermore, there is also the possibility of connecting the longitudinal threads with the additional thread or the additional threads at crossing points.
  • the longitudinal threads can be made from a particularly tensile material, for example polyester or aramid fibers or threads, and the carrier web can be made from a particularly wear-resistant material, such as polyamide.
  • a particularly tensile material for example polyester or aramid fibers or threads
  • the carrier web can be made from a particularly wear-resistant material, such as polyamide.
  • the part of the carrier web protruding from the strip layer is particularly protected against wear. Since such highly wear-resistant plastic materials are often not particularly tensile or have a high elongation, their use for carrier webs was limited or not possible at all.
  • the particularly tension-resistant longitudinal threads relieve the load on the carrier web, so that less tensile material that has other advantages can also be used for the carrier web.
  • the tape (1) shown in Figure (1) has a tape layer (2) with the front (3) and back (4).
  • the back (4) is ground smooth. When used as intended in the wet press of a paper machine, this rear side (4) runs past the pressure shoe there in the press nip.
  • a wire link belt (5) serving as a carrier web is partially embedded in the front (3) of the belt layer (2).
  • Such wire link belts (5) are particularly known for use as drying belts in the dryer section of paper machines. They consist of a multiplicity of wire helices extending transversely to the running direction of the band (1) - denoted by (6) for example - which are arranged next to one another in the running direction and overlap with their head arches - denoted by (7) for example. In the area of the overlap of the head bends (7), they are articulated to one another with the aid of a coupling wire extending over the width of the wire helix (6) - designated by (8) for example.
  • Your winding legs - designated by way of example with (9) - between two head bends (7) run essentially straight, so that there is an essentially flat support surface (10) on the free side of the wire link belt (5).
  • a wet felt cloth lies against this support surface (10).
  • the paper web to be dewatered is carried on the other side of the wet felt cloth.
  • FIG. (3) shows the wire link belt (5) with the additional thread (12) before the band layer (2) is applied, that is without it.
  • the additional thread (12) runs back and forth between the edges of the wire link belt (5) in a zigzag shape or, in this special case, even helically, once by a wire helix (6) and after a reversal of direction over the adjacent wire coil (6).
  • the reversal points - denoted by way of example (15) - of the additional thread (12) are chosen such that the additional thread (12) exits or enters the wire helix (6) before the last turn of the latter.
  • a plurality of additional threads (12) can also be connected to the wire link belt (5) in the manner shown, for example also in such a way that a second additional thread always runs within the wire helices (6) where the first additional thread ( 12) extends outside the wire coil (6) in question, and vice versa.
  • FIG. (2) The embodiment of a band (1) shown in FIG. (2) agrees with that of FIG. (1) except for one Exception agree, so that the same parts are provided with the same reference numerals and in this respect reference is also made to the preceding description.
  • the exception is that in the band layer (2) a plurality of parallel threads extending parallel to each other in the running direction - for example, designated (16) - are embedded. These longitudinal threads (16) run in the strip layer (2) between the wire link strip (5) and the thread sections (13) of the additional thread (12) running outside the wire coils (6). In this way, a cross-laid scrim is created, which further improves the pull-out strength of the wire link belt (5).
  • the longitudinal threads (16) are connected to each other at their ends, not shown here, so that they also absorb longitudinal forces. They are preferably made of a particularly tensile material, for example an aromatic aramid or even steel. This opens up the possibility of using less tensile but highly wear-resistant material, such as polyamide or the like, for the wire coils (6) of the wire link belt (5) and thereby keeping the abrasion on the support surface (10) low.
  • a particularly tensile material for example an aromatic aramid or even steel.
  • the longitudinal threads (16) and / or the additional threads (12) and / or the wire helices (6) can be formed as yarns, threads or monofilaments or multifilaments.
  • Polyester such as polybutylene therapy or polyethylene therapy, and its copolymers, polyamide, polyether ketone, polyether ether ketone, polyphenylene sulfide, polypropylene, polyacrylonitride or also carbon or graphite are suitable as materials.
  • the wire helices (6) can also be designed in this way be as described in DE-GM 86 23 879.5 and 87 06 893.1.

Landscapes

  • Paper (AREA)
EP90108042A 1989-05-02 1990-04-27 Band für Papiermaschinen Withdrawn EP0396036A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914534A DE3914534C1 (enrdf_load_stackoverflow) 1989-05-02 1989-05-02
DE3914534 1989-05-02

Publications (1)

Publication Number Publication Date
EP0396036A1 true EP0396036A1 (de) 1990-11-07

Family

ID=6379962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108042A Withdrawn EP0396036A1 (de) 1989-05-02 1990-04-27 Band für Papiermaschinen

Country Status (4)

Country Link
US (1) US5178937A (enrdf_load_stackoverflow)
EP (1) EP0396036A1 (enrdf_load_stackoverflow)
CA (1) CA2015854A1 (enrdf_load_stackoverflow)
DE (1) DE3914534C1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658649A1 (en) * 1993-12-14 1995-06-21 Appleton Mills Press belt or sleeve incorporating a spiral-type base carrier for use in long nip presses
EP0659934A2 (en) 1993-12-14 1995-06-28 Appleton Mills Press belt or sleeve, incorporating an open base carrier for use in long nip presses, and method of making same
EP0911444A3 (en) * 1997-10-20 1999-08-04 Ichikawa Co.,Ltd. A shoe press jacket
US6183601B1 (en) 1999-02-03 2001-02-06 Kimberly-Clark Worldwide, Inc. Method of calendering a sheet material web carried by a fabric

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122805C1 (de) * 1991-07-10 1994-10-06 Heimbach Gmbh Thomas Josef Drahtgliederband
JP3119761B2 (ja) * 1992-03-11 2000-12-25 キヤノン株式会社 ベルト搬送装置
DE29510307U1 (de) * 1995-06-24 1996-10-24 Württembergische Filztuchfabrik D. Geschmay GmbH, 73035 Göppingen Gewebeband
GB2309712A (en) * 1996-02-05 1997-08-06 Shell Int Research Papermachine clothing woven from aliphatic polyketone fibres
JP3045975B2 (ja) * 1997-04-24 2000-05-29 市川毛織株式会社 シュープレス用ベルト
US6918998B2 (en) * 2002-11-13 2005-07-19 Albany International Corp. On-machine-seamable industrial fabric comprised of interconnected rings

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455119A1 (fr) * 1979-04-26 1980-11-21 Beloit Corp Presse humide elargie utilisant une courroie a organes de renforcement transversaux
EP0098502A2 (de) * 1982-07-02 1984-01-18 Thomas Josef Heimbach GmbH & Co. Band zum Einsatz in Nasspressen von Papiermaschinen
DE8319684U1 (de) * 1983-07-08 1984-10-11 J.M. Voith Gmbh, 7920 Heidenheim Biegsames band fuer eine presse zum entwaessern einer faserstoffbahn

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494320A1 (fr) * 1980-11-19 1982-05-21 Feutres Papeteries Tissus Indl Procede et dispositif de renforcement de lisiere de bande
GB2106555B (en) * 1981-09-15 1985-10-02 Albany Int Corp Improvements relating to extended nip dewatering presses and to the manufacture of belts for use in such presses
NL185678C (nl) * 1981-09-24 1990-06-18 Albany Int Corp Persinrichting voor het ontwateren van een vezelbaan, alsmede werkwijze voor het vervaardigen van een eindloze band daarvoor.
DE3231038A1 (de) * 1982-08-20 1984-02-23 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Elektrische kaffeemaschine mit einem zentrifugalfilter
JPS5954598U (ja) * 1982-10-01 1984-04-10 市川毛織株式会社 抄紙機の広巾ニツププレス用加圧ベルト
DE3318984A1 (de) * 1983-05-25 1984-11-29 Fa. F. Oberdorfer, 7920 Heidenheim Herstellungsverfahren fuer zugfeste, undurchlaessige, biegsame baender insbesondere fuer pressen zum entwaessern von faserstoffbahnen
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
JPS6081391A (ja) * 1983-10-07 1985-05-09 三菱重工業株式会社 抄紙用エンドレス・ベルト
EP0185108B1 (de) * 1984-12-18 1988-08-31 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Beschichtete Pressbänder für den Einsatz in Breit-Nip-Pressen
EP0290653B1 (de) * 1987-05-14 1990-04-11 Thomas Josef Heimbach GmbH & Co. Materialbahn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455119A1 (fr) * 1979-04-26 1980-11-21 Beloit Corp Presse humide elargie utilisant une courroie a organes de renforcement transversaux
EP0098502A2 (de) * 1982-07-02 1984-01-18 Thomas Josef Heimbach GmbH & Co. Band zum Einsatz in Nasspressen von Papiermaschinen
DE8319684U1 (de) * 1983-07-08 1984-10-11 J.M. Voith Gmbh, 7920 Heidenheim Biegsames band fuer eine presse zum entwaessern einer faserstoffbahn

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658649A1 (en) * 1993-12-14 1995-06-21 Appleton Mills Press belt or sleeve incorporating a spiral-type base carrier for use in long nip presses
EP0659934A2 (en) 1993-12-14 1995-06-28 Appleton Mills Press belt or sleeve, incorporating an open base carrier for use in long nip presses, and method of making same
EP0911444A3 (en) * 1997-10-20 1999-08-04 Ichikawa Co.,Ltd. A shoe press jacket
US6183601B1 (en) 1999-02-03 2001-02-06 Kimberly-Clark Worldwide, Inc. Method of calendering a sheet material web carried by a fabric
US6524445B1 (en) 1999-02-03 2003-02-25 Kimberly-Clark Worldwide, Inc. Apparatus for calendering a sheet material web carried by a fabric
US6585858B1 (en) 1999-02-03 2003-07-01 Kimberly-Clark Worldwide, Inc. Apparatus for calendering a sheet material web carried by a fabric

Also Published As

Publication number Publication date
DE3914534C1 (enrdf_load_stackoverflow) 1990-10-18
CA2015854A1 (en) 1990-11-02
US5178937A (en) 1993-01-12

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