EP2058433B1 - Dispositif de transfert d'une bande de matériau flexible, en particulier une bande de papier ou de carton - Google Patents

Dispositif de transfert d'une bande de matériau flexible, en particulier une bande de papier ou de carton Download PDF

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Publication number
EP2058433B1
EP2058433B1 EP08015665A EP08015665A EP2058433B1 EP 2058433 B1 EP2058433 B1 EP 2058433B1 EP 08015665 A EP08015665 A EP 08015665A EP 08015665 A EP08015665 A EP 08015665A EP 2058433 B1 EP2058433 B1 EP 2058433B1
Authority
EP
European Patent Office
Prior art keywords
web
transfer
strip
transfer strip
tautening
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.)
Active
Application number
EP08015665A
Other languages
German (de)
English (en)
Other versions
EP2058433A3 (fr
EP2058433A2 (fr
Inventor
Andreas Pesch
Bernhard Schmitz
Carsten Wirtz
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.)
Andritz Kuesters GmbH
Original Assignee
Andritz Kuesters GmbH
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Publication date
Application filed by Andritz Kuesters GmbH filed Critical Andritz Kuesters GmbH
Publication of EP2058433A2 publication Critical patent/EP2058433A2/fr
Publication of EP2058433A3 publication Critical patent/EP2058433A3/fr
Application granted granted Critical
Publication of EP2058433B1 publication Critical patent/EP2058433B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine

Definitions

  • the invention relates to a device for transferring a flexible material web, in particular a paper or board web.
  • a narrow strip For transferring a paper or board web from the end of the dryer section of a paper or board machine to subsequent machine sections or machine sections, such as calenders or winders, at the end of the dryer section, a narrow strip, the so-called transfer strip, cut from the paper web and by means of a transfer device in transferred the following machine section.
  • the transfer strip is completely guided, ie threaded, through the following machine, the width of the paper web is returned to the desired dimension, namely the total width.
  • a system and method for controlling edge trim of a fibrous web is known.
  • a stabilizing device for stabilizing the residual web is provided.
  • the stabilization device adjoins the separating device in the machine direction, ie is arranged behind it.
  • the stabilization device has an effective region which extends over at least a partial region of the fibrous web web width, preferably the theoretically maximum residual breadth, which corresponds to the travel width of the severing device. This makes it possible to support the entire residual web width when guided in the collecting and / or processing device.
  • the effective range of the stabilizing device is preferably infinitely adjustable, in particular adaptable to the width of the residual web.
  • a transfer device which has a transfer flap, which is pivotally mounted on a scraper bar of a machine for producing or processing a web, in particular paper web.
  • the material web runs over the transfer flap, which is pivoted downwards in a rest position, into a catchment area, the pulper, present underneath the machine.
  • the transfer strip is cut off from the web and the transfer flap is pivoted to transfer the transfer strip.
  • the transfer strip running from the free end of the transfer flap reaches the effective region of a separating device and is thereby knocked off.
  • the transfer strip reaches the area of receiving or guiding devices that take this and thread it into the subsequent machine.
  • To support the web guide blowing devices may be provided.
  • Out DE 200 11 943 U1 is a device for transferring a flexible material web, in particular paper or board web, known, in which the material web can be divided by means of two separating elements in an edge strip extending in the direction of web travel, an adjacent transfer strip and the residual web adjacent to this transfer strip.
  • a guide device is provided in order to divert the edge strip generally laterally away from the transfer strip transversely to the web running direction.
  • a tightening device is further provided. Despite a stabilized run both the edge strip and the transfer strip it comes at the very high operating speed repeated failures during transfer of the material web.
  • the object of the invention is therefore to provide a device for transferring a flexible material web of the type mentioned, which allows a fast, successful and secure transfer of the transfer strip.
  • the residual web adjoining the transfer strip is responsible for an unstable run of the transfer strip.
  • a residual track which runs without support in the pulper, beats big waves.
  • the residual web stretched or tautened, and only in an edge region adjacent to the transfer strip the residual web in the interior area undulates unchanged, i. the paper web has the tendency to contract there.
  • the residual web rotates out of the tensioning device and moves away from the transfer flap.
  • the in the FIGS. 1 and 3 shown device for transferring a flexible material web 1 is the transfer, especially a paper or board web, from a preceding machine section 2 to a subsequent section 3 of the production and / or treatment of the web 1 serving machine, ie here a paper or board machine.
  • the preceding machine section 2 is for example a dryer section, wherein a last drying cylinder 4 in Fig. 1 is shown.
  • a subsequent section is, for example, a calender, not shown here.
  • the device for transferring a material web 1 can be used at any points of the paper or board machine, for example between calender and reel.
  • the material web 1 can be divided by means of a separating device into a transfer strip 5 extending in the web running direction L and the residual web 6 adjoining this transfer strip 5.
  • the separating device preferably comprises two separating elements, in order additionally to cut off an edge strip 7 in the web running direction L.
  • the transfer strip 5 then has clean cut edges on both sides.
  • the transfer device has a tensioning device 8, which tightens the residual web 6 on a section 9 adjacent to the transfer strip 5.
  • This section 9 extends transversely to the web running direction L and tightens the residual web 6 at its outer edge adjacent to the transfer strip 5.
  • the tensioning device 8 comprises at least one nozzle unit 10 with a plurality of juxtaposedmaschinestrahl Kunststoffdüsen or slot nozzles, which form an air guide.
  • the tensioning device 8 extends over a portion of the residual web 6, which is preferably 1 to 3 times the width of the transfer strip 5.
  • the tensioning device 8 is aligned with a transfer strip tensioning device 11 for the transfer strip 5 on a transfer flap 12.
  • the residual strip 6 is then tightened there on a section where the transfer strip 5 is knocked off for transfer to the subsequent section 3.
  • the device for transferring the flexible material web 1 has a guide 13, which is provided here at the lower peripheral region of the last drying cylinder 4 and on which the pivotable transfer flap 12 is arranged.
  • the known drive means 14 may be provided for pivoting the transfer flap 12.
  • the drying cylinder 4 is also a scraper bar 15 associated with a scraper 16, with which the material web 1 is usually scraped from the surface of the drying cylinder 4. The scraped-off material web 1 is removed before being transferred to the reject container or pulper 17.
  • FIGS. 1 and 3 show the inventive device for transferring the flexible material web 1 during transfer of the transfer strip 5 in comparison to the prior art, which in the Figures 2 and 4 is shown.
  • FIGS. 1 and 3 causes the tensioning device 8 that the residual web 6 adjacent to the transfer strip 5 not as in the prior art (see. Fig. 2 ) is scraped off by the doctor 16 of the drying cylinder 4 and then slack and thus wavy is derived in the pulper 17, but is stretched away from the drying cylinder 4, as the Fig. 1 shows.
  • the residual web 6 passes in its edge region by the tension by means of tensioning device 8 a short or straight path in the pulper 17, whereby disabilities of the transfer strip 5 during transfer are already reduced.
  • Fig. 4 shows the slack in the pulper 17 current residual web 6, which beats waves. This wave shock of the residual web 6 is suppressed by the tensioning device 8 and the residual web 6 guided in the sub-area 9 curious.
  • an edge strip 7 is cut, then this is preferably also tensioned by means of a marginal strip tensioning device 18.
  • the transfer flap 12 may be associated with a second transfer strip tensioning device 19.
  • a cutting device 20 for knocking off the transfer strip 5 is provided here.
  • guide devices 21 and / or deflection devices 22 can be provided in a known manner.
  • separating means for cutting the transfer strip 5 from the residual web 6 and preferably from the edge strip 7 a non-contact separating element, in particular Hochdruckwasserstrahl- or laser beam separating element, or a mechanical cutting element is preferably provided.

Landscapes

  • Paper (AREA)
  • Advancing Webs (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Claims (7)

  1. Dispositif de transfert d'une bande de matériau flexible (1), en particulier une bande de papier ou de carton, depuis une section amont (2) vers une section aval (3) d'une machine servant à la fabrication ou au traitement de ladite bande de matériau (1), où la bande de matériau (1) est divisable en une bande transformée (5) s'étendant dans une direction de convoyage (L) et en une bande restante (6) limitrophe de ladite bande transformée (5), où il est prévu un dispositif tendeur (8), qui tend ladite bande restante (6) sur une section (9) au voisinage de ladite bande transformée (5), et ledit dispositif tendeur (8) est orienté vers un dispositif tendeur de bande transformée (11) au niveau d'un volet de guidage (12), de façon à ce que ladite bande restante (6) s'oriente en sortie dudit dispositif tendeur (8) et se meuve au-delà dudit volet (12).
  2. Dispositif selon la revendication 1, caractérisé en ce que ladite section (9) s'étend perpendiculairement à ladite direction de convoyage (L).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que ladite section représente une à trois fois la largeur de ladite bande transformée (5) dans la direction perpendiculaire à celle de ladite direction de convoyage (L).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que ledit dispositif tendeur (8) comporte au moins une buse de soufflage d'air d'une unité de buses (10).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que ladite bande de matériau (1) est divisable au moyen d'un dispositif de séparation dans une bande de rive (7) s'étendant dans ladite direction de convoyage (L), et à ladite bande transformée (5) limitrophe de la bande de rive (7) et de ladite bande restante (6) limitrophe de la bande transformée (5).
  6. Dispositif selon la revendication 5, caractérisé en ce qu'il est prévu comme dispositif de séparation un élément de séparation travaillant sans contact, en particulier un élément de découpe par jet d'eau à haute pression ou à faisceau laser, ou bien un élément de coupe mécanique.
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que ladite bande de rive (7) est tendable au moyen d'un dispositif tendeur de bande de rive (18).
EP08015665A 2007-11-10 2008-09-05 Dispositif de transfert d'une bande de matériau flexible, en particulier une bande de papier ou de carton Active EP2058433B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007053700A DE102007053700A1 (de) 2007-11-10 2007-11-10 Vorrichtung zum Überführen einer flexiblen Materialbahn, insbesondere einer Papier- oder Kartonbahn

Publications (3)

Publication Number Publication Date
EP2058433A2 EP2058433A2 (fr) 2009-05-13
EP2058433A3 EP2058433A3 (fr) 2010-05-05
EP2058433B1 true EP2058433B1 (fr) 2011-08-31

Family

ID=40377716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08015665A Active EP2058433B1 (fr) 2007-11-10 2008-09-05 Dispositif de transfert d'une bande de matériau flexible, en particulier une bande de papier ou de carton

Country Status (3)

Country Link
EP (1) EP2058433B1 (fr)
AT (1) ATE522662T1 (fr)
DE (1) DE102007053700A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015001008A1 (de) * 2015-01-28 2016-07-28 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Herstellung von nassgelegten Vliesstoffen
CN110065098B (zh) * 2019-06-03 2024-03-19 江苏万宝瑞达高新技术有限公司 一种防止漏涂或断纸的刮刀装置
DE102019134691A1 (de) * 2019-12-17 2020-11-19 Voith Patent Gmbh Vorrichtung und Verfahren zum Überführen einer Faserstoffbahn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI63800C (fi) * 1982-04-27 1983-08-10 Valmet Oy Foerfarande och anordning vid skaerningen av spetsen i en pappersbana
DE4409660A1 (de) 1994-03-21 1994-08-18 Voith Gmbh J M Streifenabschlag- und Überführeinrichtung
DE19537173C1 (de) 1995-10-06 1996-12-19 Voith Sulzer Papiermasch Gmbh Streifenabschlageinrichtung
DE20011943U1 (de) 2000-07-10 2000-09-28 Voith Sulzer Papiertech Patent Vorrichtung zum Überführen einer flexiblen Materialbahn
DE10033456A1 (de) * 2000-07-10 2002-01-24 Voith Paper Patent Gmbh Verfahren sowie Vorrichtung zum Überführen einer flexiblen Materialbahn
DE102006044930A1 (de) * 2006-09-22 2008-04-03 Voith Patent Gmbh System zum Breitfahren einer Faserstoffbahn, Verfahren zur Steuerung der Überführ- bzw. Randstreifenüberführung und Maschine zur Herstellung einer Faserstoffbahn

Also Published As

Publication number Publication date
EP2058433A3 (fr) 2010-05-05
EP2058433A2 (fr) 2009-05-13
ATE522662T1 (de) 2011-09-15
DE102007053700A1 (de) 2009-05-14

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