EP0785306B1 - Dispositif de guidage d'une bande de matériau - Google Patents

Dispositif de guidage d'une bande de matériau Download PDF

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Publication number
EP0785306B1
EP0785306B1 EP96117463A EP96117463A EP0785306B1 EP 0785306 B1 EP0785306 B1 EP 0785306B1 EP 96117463 A EP96117463 A EP 96117463A EP 96117463 A EP96117463 A EP 96117463A EP 0785306 B1 EP0785306 B1 EP 0785306B1
Authority
EP
European Patent Office
Prior art keywords
web
stabilizer
material web
conveyor belt
air
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.)
Expired - Lifetime
Application number
EP96117463A
Other languages
German (de)
English (en)
Other versions
EP0785306A2 (fr
EP0785306A3 (fr
Inventor
Wolfgang Mueller
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
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Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0785306A2 publication Critical patent/EP0785306A2/fr
Publication of EP0785306A3 publication Critical patent/EP0785306A3/fr
Application granted granted Critical
Publication of EP0785306B1 publication Critical patent/EP0785306B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices

Definitions

  • the invention relates to an arrangement for guiding a material web, in particular a fibrous web, according to the preamble of claim 1.
  • the blow box is formed in several parts and the individual elements of the blow box are arranged one behind the other in the direction of travel of the material web and are adjustable independently of one another, can provide an optimal seal against the environment.
  • FIGS. 1 and 2 The arrangement for guiding described below a web of material can be used in general. It is made using a paper making machine explained, which has a dryer section, in which the material or paper web together with one also as a dry felt or sieve designated conveyor belt meandering around the drying cylinder and web guide rollers is guided.
  • the designs shown in FIGS. 1 and 2 are not Part of the invention, should be the understanding of Facilitate invention.
  • Figure 1 shows a section of a dryer section a paper making machine with a Arrangement 1 for guiding a material web respectively Paper web 3, which together with a Conveyor belt 5 from a first drying cylinder 7 via a web guide roller 9 to a second drying cylinder 11 is performed, in the area of Drying cylinder 7, 11 the material web on the cylinder surface rests and in the area of the web guide roller 9 the conveyor belt 5.
  • a first free running distance 13 is formed between the web guide roller 9 and the second drying cylinder 11 a second free running route 15.
  • a web stabilizer 17 provided, which is designed, for example, as a suction box and is the area of the free running track 13 and 15 and also the web guide roller 9 can suck.
  • the web stabilizer 17 Through the web stabilizer 17 the paper web 3 on the conveyor belt 5 in the area the free running routes 13 and 15 stabilized. If the web guide roller 9 from the web stabilizer 17 is sucked, is also on the surface the web guide roller 9 guided material web sucked on the conveyor belt 5 and thus stabilized.
  • the web stabilizer can also be used as a transfer foil or air guide box be that of transferring the paper web from the first Drying cylinder 7 on the web guide roller 9 and / or from the web guide roller 9 to the subsequent token cylinder 11 and serves to transfer the paper web with negative and / or positive pressure respectively Blowing air can be acted upon.
  • the web stabilizer 17 extends essentially over the entire width of the paper web 3.
  • a separate one Blow box 21 provided on both in the area of the edge of the Paper web 3 sides.
  • the one shown in Figure 1 Blow box 21 is on the side wall 23 of the railway stabilizer 17 attached.
  • the blow box 21 is so attached that it is independent of the web stabilizer 17 aligned and adjusted can.
  • the one shown in this embodiment The blow box 21 is the opening nip 25 between the surface of the drying cylinder 7 and assigned to the running paper web 3. He is with provided a supply air connection Z and has at least one towards the conveyor belt 5 opening blowing nozzle, which is shown in more detail with reference to FIG 4 is explained.
  • the blow box 21 is by means of Supply air connection Z is supplied with air from the for example, a web stabilizer designed as a suction box 17 aspirated and / or from a separate Compressed air supply device, for example a compressor. It will an exemplary embodiment of the arrangement is preferred, where the blow box 21 exclusively with the Air drawn off by the web stabilizer 17 is supplied will, which builds up the dryer section simplified and safe transfer of the paper web 5 -also at high production speeds- is guaranteed.
  • Figure 2 shows a modified version of a Arrangement 1 for guiding a material web respectively Paper web 3.
  • the cylinders around which the Paper web 3 together with a conveyor belt 5 have the same diameter here. They can both be designed as drying cylinders 7 and 7 ' his.
  • the free running distance 13 between the two drying cylinders 7 and 7 ' is also here assigned a web stabilizer 17, however does not affect the free running distance by the drying cylinder 7 'runs.
  • the web stabilizer 17 extends as in FIG Figure 1 explained across the entire width of the paper making machine.
  • a blow box 21 is attached in the area the edge of the paper web 3 is arranged.
  • the blow box 21 points here, unlike that in FIG. 1 shown, two supply air connections Z 1 and Z 2.
  • Figure 3 again shows a section of a Machine for the production of a material web respectively a paper making machine, inside of which a paper web 3 is guided over two rollers becomes.
  • the paper web 3 from a deflection roller 27 to a drying cylinder 7 are performed, the diameter of which is essential is larger than that of the deflection roller 27.
  • the deflection roller 27 can serve as a web guide roller. Is conceivable it also to heat them.
  • blow box 21 'and 21' ' has one Supply air connection Z on.
  • the blow box 21 is too arranged here in the region of the edge of the paper web 3.
  • the blow box shown in Figure 3 is characterized by the fact that it covers the entire Length of the free running path 13 extends and thus both on the running nip 26 and can act on the accumulating nip 25 in which the Material web on the surface of the drying cylinder 7 accumulates. Because of the drying cylinder 7 and the material web entrained air an overpressure in the nip 25.
  • FIG. 4 finally shows a cross section through a blow box 21. It can be seen that this has a housing 29 which is suitable is connected to an air supply device, so that there is an overpressure within the housing 29 is.
  • the air passes through an outlet slot 31 from which is close to a curved Housing section 33 opens.
  • the outlet slot 31 is designed so that the air on the curved Flows along housing section 33 and from a lying between housing 29 and conveyor belt 5 Gap 35 emerges.
  • the air is directed in such a way that in the space 37 between web stabilizer 17 and conveyor belt 5 a negative pressure built up or by the web stabilizer 17 still existing is strengthened.
  • the Blow box 21 is in the region of the edge 39 of the material web or paper web 3 arranged and in particular brings about safe guidance the web edge, so that a flutter and thus the Danger of a web break practically completely avoided can be.
  • the conveyor belt 5 is in two positions shown: The is with solid lines Rest position of the conveyor belt 5 shown with dashed lines Lines its working position.
  • Figure 4 clearly shows that the Blow box 21 on a side wall 23 of the web stabilizer 17 is attached regardless of this compared to the conveyor belt 5 and the paper web 3 can be adjusted and adjusted.
  • the arrangement of the outlet slot 31 can also be so be chosen so that the outflowing air is optimal abuts the curved housing section 33 and the space 37 is safe from the outside environment of the papermaking machine delimits such that a negative pressure builds up there becomes.
  • blow box preferably on both sides of the Web stabilizer 17 blow box can be attached, as shown in the figures. Since the Blow boxes separate from the web stabilizer trained, the blow boxes can be independent from this to the conveyor belt 5 respectively the paper web 3 are aligned, so that safe vacuum generation on the sides the paper web 3 is guaranteed. If the blow box is formed in several parts or more small blow boxes one behind the other in the area of one free running track can be arranged adjusted independently of each other and thus optimal the course of conveyor belt 5 and paper web 3 be adjusted.
  • blow boxes with practically any designed track stabilizers interact and can therefore be used universally.

Landscapes

  • Paper (AREA)
  • Advancing Webs (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (4)

  1. Dispositif pour le guidage d'une bande de matière (3), en particulier d'une bande de matière fibreuse, à l'intérieur d'une machine pour la fabrication de la bande de matière (3), avec au moins un stabilisateur de bande (17) s'étendant sensiblement sur la largeur de la bande de matière (3), dans lequel au moins un caisson de soufflage séparé (21) est disposé sur au moins un côté du stabilisateur de bande (17) situé dans la région du bord latéral de la bande, caractérisé en ce que le caisson de soufflage (21) se compose de plusieurs caissons partiels (21', 22'') qui - vus dans le sens de défilement de la bande de matière (3) - sont disposés l'un derrière l'autre et sont réglables indépendamment l'un de l'autre.
  2. Dispositif suivant la revendication 1, caractérisé en ce qu'un caisson de soufflage (21) est disposé sur les deux côtés du stabilisateur de bande (17).
  3. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le caisson de soufflage (21) est disposé au début et/ou à la fin d'une zone de défilement libre (13, 15).
  4. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le caisson de soufflage (21) est alimenté en air aspiré par le stabilisateur de bande (17) et/ou fourni par un dispositif séparé d'alimentation en air comprimé.
EP96117463A 1996-01-20 1996-10-31 Dispositif de guidage d'une bande de matériau Expired - Lifetime EP0785306B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19601989A DE19601989C2 (de) 1996-01-20 1996-01-20 Anordnung zum Führen einer Materialbahn
DE19601989 1996-01-20

Publications (3)

Publication Number Publication Date
EP0785306A2 EP0785306A2 (fr) 1997-07-23
EP0785306A3 EP0785306A3 (fr) 1998-09-09
EP0785306B1 true EP0785306B1 (fr) 2002-05-02

Family

ID=7783253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117463A Expired - Lifetime EP0785306B1 (fr) 1996-01-20 1996-10-31 Dispositif de guidage d'une bande de matériau

Country Status (5)

Country Link
US (1) US5893505A (fr)
EP (1) EP0785306B1 (fr)
CN (1) CN1158816A (fr)
CA (1) CA2195142A1 (fr)
DE (2) DE19601989C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH693304A5 (de) * 1997-08-01 2003-05-30 Roland Man Druckmasch Wendestange und Wendestangenanordnung für eine Rollenrotationsdruckmaschine.
US6325896B1 (en) * 1999-09-23 2001-12-04 Valmet-Karlstad Ab Apparatus for transferring a fast running fibrous web from a first location to a second location
EP1605098A1 (fr) * 2000-02-26 2005-12-14 Voith Paper Patent GmbH Convoyeur à bande avec aspiration
US6513263B2 (en) * 2000-10-06 2003-02-04 Enerquin Air Inc. Ventilator for offset pocket and method of ventilating the same
DE102005057426A1 (de) * 2005-11-30 2007-05-31 Andritz Küsters GmbH & Co. KG Unterdruck-Bandfördervorrichtung zum Führen einer laufenden Bahn
US8042807B2 (en) * 2006-12-21 2011-10-25 Palo Alto Research Center Incorporated Transport for printing systems
DE102009056625B9 (de) * 2009-12-02 2011-05-12 Paprima Industries Inc., Dorval Verlängerungseinrichtung für einen Luftleitkasten
DE102010056576B8 (de) 2010-12-30 2015-05-07 Paprima Industries Inc. Papierherstellungsmaschine und Verfahren zum Herstellen von Papier
DE102015001008A1 (de) * 2015-01-28 2016-07-28 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Herstellung von nassgelegten Vliesstoffen
DE102017123189A1 (de) 2017-10-06 2019-04-11 Voith Patent Gmbh Bahnführungsvorrichtung zum Stabilisieren einer flächigen Materialbahn, Trockenpartie einer Bahnführungsvorrichtung und Verfahren zum Betreiben einer Bahnführungsvorrichtung zum Stabilisieren einer flächigen Materialbahn in einer Trockenpartie

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI69332C (fi) * 1984-03-02 1986-01-10 Valmet Oy Anordning i torkningspartiet av en pappersmaskin
FI76142C (fi) * 1985-11-14 1988-09-09 Valmet Oy Fickventilationsfoerfarande och -anordning i en pappersmaskins maongcylindertork.
BR8607355A (pt) * 1986-04-08 1989-08-15 Beloit Corp Caixa de sopro para um secador e processo de manutencao de uma trama em conformidade proxima com um feltro
US4698919A (en) * 1986-04-08 1987-10-13 Beloit Corp. Apparatus for assisting the transfer of a web to a drying section
US5507104A (en) * 1987-02-13 1996-04-16 Beloit Technologies, Inc. Web drying apparatus
DE3706541A1 (de) * 1987-02-28 1988-09-08 Voith Gmbh J M Vorrichtung zum stabilisieren des laufes einer warenbahn, insbesondere zum stabilisieren einer papierbahn in der trockenpartie einer papiermaschine
DE3739338C2 (de) * 1987-11-20 1995-09-07 Voith Gmbh J M Luftleitkasten zum Stabilisieren des Laufs einer Warenbahn, insbesondere einer Papierbahn
FI82502C (fi) * 1989-05-02 1991-03-11 Valmet Paper Machinery Inc Foerfarande och anordning i torkpartiet av en pappersmaskin foer att effektivera spetsdragningen av banan.
FI95732C (fi) * 1992-01-13 1996-03-11 Valmet Paperikoneet Oy Laite paperikoneen kuivatusosassa

Also Published As

Publication number Publication date
US5893505A (en) 1999-04-13
DE59609152D1 (de) 2002-06-06
EP0785306A2 (fr) 1997-07-23
CN1158816A (zh) 1997-09-10
DE19601989A1 (de) 1997-07-24
EP0785306A3 (fr) 1998-09-09
CA2195142A1 (fr) 1997-07-21
DE19601989C2 (de) 2002-01-31

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