EP1619301A1 - Procédé et dispositif d'élimination des bords coupé d'un matériau en bande - Google Patents

Procédé et dispositif d'élimination des bords coupé d'un matériau en bande Download PDF

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Publication number
EP1619301A1
EP1619301A1 EP05104735A EP05104735A EP1619301A1 EP 1619301 A1 EP1619301 A1 EP 1619301A1 EP 05104735 A EP05104735 A EP 05104735A EP 05104735 A EP05104735 A EP 05104735A EP 1619301 A1 EP1619301 A1 EP 1619301A1
Authority
EP
European Patent Office
Prior art keywords
strip
belt
fibrous web
edge strip
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Withdrawn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
EP05104735A
Other languages
German (de)
English (en)
Inventor
Wolfgang Mayer
Ralf Pfifferling
Manfred Grüner
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 Patent GmbH
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 Patent GmbH, Voith Paper Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1619301A1 publication Critical patent/EP1619301A1/fr
Withdrawn legal-status Critical Current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
    • D21F2/00—Transferring continuous webs from wet ends to press sections
    • 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

Definitions

  • the invention relates to a method and a device for marginal strip removal after separating a marginal strip from a paper, cardboard, tissue or other fibrous web in a machine for producing and / or finishing the same, wherein the fibrous web is supported by a band.
  • the invention also relates to the associated application.
  • edge strips In general, it is customary to keep the edge strips after the transfer of the fibrous web to a takeover band on the belt and continue. Only later are the edge strips of this tape scraped or removed with a jet of water.
  • the object of the invention is therefore to reduce the risk of a continuation of the edge strip on takeover tape.
  • the object is achieved in that the edge strip is led away from the fibrous web and the belt before the transfer of the fibrous web to a takeover band.
  • edge strip prior to routing with the help of at least one on the edge strip opposite side of the air and water permeable belt arranged air and / or water jet, which an air and / or water jet in the region of the edge strip on the Band straightened, detached from the band.
  • An air nozzle can be integrated into a ceramic strip, with the ceramic strip touching the strip.
  • the air and / or water jet acts through the band on the edge strips and thus leads to detachment, which makes the subsequent scraping of the edge strip from the band, preferably with a scraper, in particular a ceramic scraper, safer and easier.
  • the edge strip can be guided via a guide preferably in the form of a discharge chute or a discharge tube in a pulper.
  • the removal of the edge strip can be improved if the discharge pipe is sucked and rinsed with water.
  • the fibrous web 1 is formed substantially in the former of the paper machine and then guided in the web running direction 14 at least by a press section for dewatering and a drying section for drying.
  • the fibrous web 1 is supported on an air and water-permeable belt 2 in the form of a forming wire. From this band 2, the fibrous web 1 is then transferred to a takeover band 8 of the following press section in the form of an air-permeable and water-absorbing press felt. These Takeover is supported by a wound and pressed by the press felt guide roller 9.
  • each edge strip 3 is separated and discharged. This is done according to the invention before the transfer of the fibrous web 1 to the press felt.
  • the corresponding edge strip 3 is separated from the fibrous web 1 via the water jet of a water jet nozzle 4, directed onto the fibrous web 1. Subsequently, a directed from the opposite side of the band 2 in the region of the edge strip 3 on the tape 2 water jet of a water jet nozzle 6 for the detachment of the edge strip 3 from the belt 2. This water jet pushes the water namely through the band 2, so that on the opposite Side creates a water film, which ensures the detachment of the edge strip 3.
  • a subsequent scraper 5 can peel so easily and safely the edge strip 3 from the tape 2 because of the water film. Because of the already detached by the water jet edge strip 3 of the scraper 5 does not necessarily have to contact the band 2.
  • a guide in the form of a discharge pipe or a discharge chute can then lead the edge strip 3 laterally out of the machine into a pulper in the machine cellar.
  • edge strip 3 This not only allows a clean and safe removal of the edge strip 3, but also much narrower edge strips 3 with a width between 10 and 20 mm, instead of about 100 mm.
  • the edge strip removal according to FIG. 3 differs therefrom in that the edge separation after separation is assisted by an air nozzle 10 directed in the region of the edge strip 3 from the opposite side of the strip 2 onto the edge strip 3.
  • the air nozzle 10 is in a ceramic strip 11, on which the tape 2 slides along. The friction is low because of the ceramic and the wet strip 3, also improves the contact between the band 2 and ceramic strip 11, the effectiveness of the vent 10th
  • the subsequent ceramic scraper 5 dissolves the edge strip 3 and guides it into a discharge tube 12. From there, the edge strip 3 enters the pulper.
  • the discharge pipe 12 In order to support the transport of the edge strip 3 in the discharge pipe 12, the discharge pipe 12 should be sucked. This can be done by connection to a vacuum source.

Landscapes

  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
EP05104735A 2004-07-19 2005-06-01 Procédé et dispositif d'élimination des bords coupé d'un matériau en bande Withdrawn EP1619301A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410034781 DE102004034781A1 (de) 2004-07-19 2004-07-19 Randstreifenabführung

Publications (1)

Publication Number Publication Date
EP1619301A1 true EP1619301A1 (fr) 2006-01-25

Family

ID=35058357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05104735A Withdrawn EP1619301A1 (fr) 2004-07-19 2005-06-01 Procédé et dispositif d'élimination des bords coupé d'un matériau en bande

Country Status (2)

Country Link
EP (1) EP1619301A1 (fr)
DE (1) DE102004034781A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242517A (zh) * 2011-06-30 2011-11-16 安徽康鑫纸业有限公司 造纸切边装置
CN102517957A (zh) * 2011-12-19 2012-06-27 中冶美利纸业股份有限公司 回头辊纸张裁切装置
CN103669081A (zh) * 2012-09-10 2014-03-26 上海东冠纸业有限公司 一种纸边剥浆分离装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907216A1 (de) * 1988-03-15 1989-09-28 Valmet Paper Machinery Inc Kalandrierverfahren und kalander dafuer
WO2001031120A1 (fr) 1999-10-29 2001-05-03 Metso Paper, Inc. Dispositif pour partie humide de machine a papier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907216A1 (de) * 1988-03-15 1989-09-28 Valmet Paper Machinery Inc Kalandrierverfahren und kalander dafuer
WO2001031120A1 (fr) 1999-10-29 2001-05-03 Metso Paper, Inc. Dispositif pour partie humide de machine a papier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242517A (zh) * 2011-06-30 2011-11-16 安徽康鑫纸业有限公司 造纸切边装置
CN102517957A (zh) * 2011-12-19 2012-06-27 中冶美利纸业股份有限公司 回头辊纸张裁切装置
CN103669081A (zh) * 2012-09-10 2014-03-26 上海东冠纸业有限公司 一种纸边剥浆分离装置

Also Published As

Publication number Publication date
DE102004034781A1 (de) 2006-03-16

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