EP1445376A1 - Dispositif pour couper un bord d'une couche fibreuse - Google Patents

Dispositif pour couper un bord d'une couche fibreuse Download PDF

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Publication number
EP1445376A1
EP1445376A1 EP04100109A EP04100109A EP1445376A1 EP 1445376 A1 EP1445376 A1 EP 1445376A1 EP 04100109 A EP04100109 A EP 04100109A EP 04100109 A EP04100109 A EP 04100109A EP 1445376 A1 EP1445376 A1 EP 1445376A1
Authority
EP
European Patent Office
Prior art keywords
separating
layer
edge
fibrous
arrangement
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
EP04100109A
Other languages
German (de)
English (en)
Inventor
Erich Brunnauer
Franz Stelzhammer
Manfred Gloser
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 Paper 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1445376A1 publication Critical patent/EP1445376A1/fr
Ceased 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
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/006—Cutting the edges of the paper-web
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • D21F9/006—Complete machines for making continuous webs of paper of the twin-wire type paper or board consisting of two or more layers

Definitions

  • the invention relates to a device for molding at least one two-layer fibrous web with a first band over which a first layer of fibrous material runs in, with a second belt, over which a second fiber layer arrives, and with a merging section in which the first and the second fibrous layer can be brought together to form the fibrous web.
  • this object is achieved in a device of the type mentioned kind solved in that before the merging section at least one of the tapes an arrangement for separating an edge area the fiber layer is arranged.
  • This is used in the production of a multi-layer material web with different Layer quality at least one layer edge before gouging with at least another layer separated and discharged into a defined area. This creates a closed material cycle. By removing at least one edge of a fibrous layer in the area before the merge with a fiber layer, it gets a clean, precisely defined one Edge, so that the entire fiber layer and especially in the edge area better to gossip with another layer of fiber.
  • the resulting fibrous material can be re-inserted introduce the production process for producing the same fiber layer.
  • the edge of a higher quality or a lower quality layer quality separated to the corresponding Quality from the recovery or recycling process in to keep out a headbox for the production of a fibrous layer.
  • the fiber layers can be formed by twin wire formers or four wire.
  • the device cooperates an arrangement which has at least one separating device for separating the Edge area by means of a fluid medium, in particular by means of air and / or Water.
  • pressures are suitable for separation by means of air between 1.5 and 5 bar, in particular between 2 and 4 bar, and for separation using water pressures between 5 and 30 bar, in particular between 10 and 20 bar.
  • the device is advantageously designed such that the arrangement as a whole or individual separating devices via a displacement unit transversely to the running direction the fiber layer are displaceable, in particular over a displacement width between 5 and 500 mm.
  • This is a great variability Manufacture of various widths from fiber layers and material webs given them.
  • several layers of fiber lie precisely one above the other without Fibers in the edge areas are mixed with each other after manufacture of the entire material web would have to be cut off anyway since they do not have the required uniform consistency as in the middle range of Web.
  • the separation devices belonging to the arrangement can be in all combinations their order can be used with all combinations of pressures.
  • the fiber layers can be advantageously by a in the merge area connect the arranged rubber roller.
  • the first and second separation devices are each on mutually opposite sides of the fibrous layer arranged; thereby the fibers are cleanly separated from both sides.
  • the third separating device is on the same side how the second separator is arranged.
  • a removal device for removing the separated from the arrangement Edge of the fiber layer to a reprocessing device available the entire edge of the fibrous layer can be mixed with fibers Recycle other layers of fiber.
  • the separated edge is advantageously removed from the reprocessing device returned to the headbox of the same fiber layer, so that the fibers from the edge areas immediately after their separation be returned to the production process.
  • a safe removal of the fibers of the edge area is guaranteed if in the discharge device a suction of the separated edge of the fiber layer takes place by means of negative pressure.
  • the machine shown in the figure for producing an at least two-ply comprises a wire section 10.
  • the fibrous web is in particular a paper or cardboard web.
  • the wire section 10 is primarily in paper or cardboard machines used.
  • A runs in the area of the wire section 10 Band 12, in particular a sieve or a felt, in the direction of an arrow 14 in essentially horizontal of a twin wire former 20.
  • the belt 12 belongs to a fourdrinier former. At the exit of the twin wire former 20 there is a Merging area in which that generated by the twin wire former 20 second fiber web layer with a first generated by the Fourdrinier and via the band 12 fed fiber web layer is connected.
  • the twin wire former 20 has a first endless belt 22, the top wire, and second endless belt 24, the lower wire, on which to form the second fiber layer run in parallel.
  • the endless belts 22, 24 form in an area in which they are brought together for parallel guidance, an entry gap 26.
  • At the inlet gap 26 there is a schematically indicated headbox 28 arranged through which a fiber suspension for the first fiber layer in the entry gap 26 is irradiated.
  • a multi-layer headbox can also be used provide.
  • the twin wire former 20 has a forming roller 30 that extends from the top wire 22 is wrapped over most of its circumference.
  • a screen guide roller 32 is provided in the area of the inlet nip 26, of which the lower wire 24 runs on the forming roller 30.
  • the forming roller 30 has one Suction section 34, which is approximately in the area of the wrapping of the forming roller 30 is arranged through the upper sieve 22 and the lower sieve 24.
  • a series of forming strips 36 is provided opposite the forming roller 30, which can be fixed, but can also be designed to be movable.
  • the upper sieve 22 and the lower sieve 24 run with the not shown fiber layer obliquely upwards and loop around guide rollers 38 and a deflection roller which is also designed as a vacuumed or non-vacumed forming roller 40.
  • the top wire 22 runs with the one lying thereon second fiber layer to a rubber roller 42 and from this Guide rollers 44 back to the forming roller 30.
  • To lift the bottom wire 24 is immediately behind the outlet area of the deflection roller 40 on the side of the A separating suction device 46 is provided for the upper sieve 22. From the vacuum cleaner 46 runs the top wire 22 with the fiber layer thereon on the rubber roller 42 on.
  • twin wire former 20 can of course also be used in the others German patent application DE 196 51 493 A1 (PB10449 DE) des Developments disclosed by the applicant, such as the wrapping of the Forming roller 30 in its upper peripheral region through the two screens 22, 24, accept.
  • An arrangement 48 is located between the suction pad 46 and the rubber roller 42 arranged to separate the edge strips of the fibrous layer, which on the side the fiber layer, a first separating device in the running direction of the top wire 22 50 for cutting the fiber layer by means of water.
  • the water has a pressure of, for example, 20 bar.
  • the separating device 50 is followed by a second separating device 52 which a blow-off spray pipe for spraying water onto the fiber layer a pressure of, for example, 12 bar.
  • a third also at the Separating device 54 arranged on the side of the upper sieve has Blow-off pipe, from which compressed air with a pressure of, for example, 2, b is inflated to 3 bar on the fiber layer.
  • the severed edge of the fibrous layer is cut in pieces or shreds by a discharge device 56 sucked off.
  • the discharge device 56 comprises a tube with a funnel-shaped, adapted to the tear-off zone of the edge of the fibrous layer Opening. The excess is removed by means of negative pressure in the tube Pieces of the fiber layer are supported.
  • the severed edge of the fiber layer becomes, for example, via a reprocessing device Headbox of the same fiber layer returned.
  • a fibrous layer 58 is passed through the arrangement 48. About one The side frame 60 and a holder 62 attached to it become the arrangement 48 held and is transverse to the direction of the fiber layer 58 over a (here not shown) sliding unit and slides the fiber layer 58 in an area 64.
  • the fiber layer 58 can have the maximum width S have and is by one or more cutting or cutting operations on the brought desired width G.
  • the edge of the fiber layer 58 becomes in strips separated along the dashed or dash-dotted lines 66, 68, 70.
  • Each of the separating or knock-off devices can preferably be moved sideways adjust.
  • the arrangement 48 according to the invention can be used in various configurations of machines for the production of multilayer fibrous webs, around the lateral edges of the fiber layers before each bringing them together to be able to recover other fiber layers.
  • a paper or board machine 80 ( Figure 3) are three headboxes 81, 82 and 84 produced three layers of fibrous material, resulting in a three-layered fibrous web be united.
  • the headbox 81 is a hybrid former 85 with a Twin wire former 86 assigned.
  • the headbox is a fourdrinier former 86 assigned.
  • In a gap 87 the fiber layers from the hybrid former 85 and the fourdrinier former 86 merged.
  • the fiber layer is arranged on both sides of the respective fiber layer.
  • a corresponding arrangement is also in a region 88 in a corresponding manner for separating the edge from one of another wire formers 89 a fiber suspension fed from the headbox 83 Fibrous layer present before this with the already combined fibrous layers from the hybrid former 85 and the fourdrin former 86.
  • a paper or board machine has 90 ( Figure 4) the structure as the paper or board machine 80, which by the Use of the same reference numerals is identified, and additionally one Another fourdrinier screen 91 with a headbox 92. In an area 93 is also on this fourdrinier an arrangement for separating the edge of the fiber layer attached, which is constructed for example like the arrangement shown in Figure 1 48th
  • a paper or board machine 100 for the production of a five-ply paper or cardboard web with four wire formers 101, 102, 103 and 104 equipped with headboxes 105, 106, 107 and 108.
  • the fiber layer created by the Fourdrinier former is initially shown in an area 110 with one in a hybrid former from one through the headbox 111 supplied fibrous suspension connected fiber layer, before both interconnected fiber layers in a region 112 are connected to the fibrous layer generated by the wire forming device 104.
  • areas 113 and 114 finally, those of the four wire formers 102 or 103 produced fiber layers with that of the Fourdrinier former 104 guided multilayer fiber layer combined.

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  • Paper (AREA)
EP04100109A 2003-02-04 2004-01-15 Dispositif pour couper un bord d'une couche fibreuse Ceased EP1445376A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003104393 DE10304393A1 (de) 2003-02-04 2003-02-04 Vorrichtung zum Abtrennen eines Randes von einer Faserstofflage
DE10304393 2003-02-04

Publications (1)

Publication Number Publication Date
EP1445376A1 true EP1445376A1 (fr) 2004-08-11

Family

ID=32603137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04100109A Ceased EP1445376A1 (fr) 2003-02-04 2004-01-15 Dispositif pour couper un bord d'une couche fibreuse

Country Status (2)

Country Link
EP (1) EP1445376A1 (fr)
DE (1) DE10304393A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127008A1 (fr) 2012-02-28 2013-09-06 Paprima Industries Inc. Fabrication de papier
EP2971345A4 (fr) * 2013-03-15 2016-12-21 Georgia Pacific Consumer Products Lp Rognure de bords de feuille et le retrait d'un tissu de papier structuré
DE102019112835A1 (de) * 2019-05-16 2020-04-16 Voith Patent Gmbh Vorrichtung und Verfahren zur Herstellung einer Faserstoffbahn
DE102005026494B4 (de) 2004-06-18 2021-10-14 Valmet Technologies, Inc. Verfahren und Vorrichtung in einer Papier- oder Kartonmaschine
EP3998380A1 (fr) * 2014-02-14 2022-05-18 Seiko Epson Corporation Appareil de fabrication de feuille et appareil de défibrage de matériau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021107854A1 (de) 2021-03-29 2022-09-29 Voith Patent Gmbh Mehrlagenformer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1385262A (en) * 1971-05-24 1975-02-26 Ishikawajima Harima Jukogko Kk Method for laminating webs and web laminating device
DE3204740A1 (de) * 1982-02-11 1983-08-18 Escher Wyss Gmbh, 7980 Ravensburg Papiermaschine
US4456502A (en) * 1981-07-31 1984-06-26 Beloit Corporation Method for adjusting the format of continuous aqueous fibre suspension delivered by the head boxes of a paper manufacturing machine, and the device for carrying out said method
WO2002016693A1 (fr) * 2000-08-22 2002-02-28 Upm-Kymmene Corporation Procede et dispositif de coupe de bordures d'une bande de papier
WO2002033169A1 (fr) * 2000-10-19 2002-04-25 Metso Paper Karlstad Ab Dispositif de protection utilise dans un materiel de decoupage de feuilles de papier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1385262A (en) * 1971-05-24 1975-02-26 Ishikawajima Harima Jukogko Kk Method for laminating webs and web laminating device
US4456502A (en) * 1981-07-31 1984-06-26 Beloit Corporation Method for adjusting the format of continuous aqueous fibre suspension delivered by the head boxes of a paper manufacturing machine, and the device for carrying out said method
DE3204740A1 (de) * 1982-02-11 1983-08-18 Escher Wyss Gmbh, 7980 Ravensburg Papiermaschine
WO2002016693A1 (fr) * 2000-08-22 2002-02-28 Upm-Kymmene Corporation Procede et dispositif de coupe de bordures d'une bande de papier
WO2002033169A1 (fr) * 2000-10-19 2002-04-25 Metso Paper Karlstad Ab Dispositif de protection utilise dans un materiel de decoupage de feuilles de papier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026494B4 (de) 2004-06-18 2021-10-14 Valmet Technologies, Inc. Verfahren und Vorrichtung in einer Papier- oder Kartonmaschine
WO2013127008A1 (fr) 2012-02-28 2013-09-06 Paprima Industries Inc. Fabrication de papier
EP2819940A4 (fr) * 2012-02-28 2015-11-11 Paprima Ind Inc Fabrication de papier
EP2971345A4 (fr) * 2013-03-15 2016-12-21 Georgia Pacific Consumer Products Lp Rognure de bords de feuille et le retrait d'un tissu de papier structuré
EP3998380A1 (fr) * 2014-02-14 2022-05-18 Seiko Epson Corporation Appareil de fabrication de feuille et appareil de défibrage de matériau
DE102019112835A1 (de) * 2019-05-16 2020-04-16 Voith Patent Gmbh Vorrichtung und Verfahren zur Herstellung einer Faserstoffbahn

Also Published As

Publication number Publication date
DE10304393A1 (de) 2004-08-19

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