EP1387000A1 - Web transfer apparatus - Google Patents

Web transfer apparatus Download PDF

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Publication number
EP1387000A1
EP1387000A1 EP03101493A EP03101493A EP1387000A1 EP 1387000 A1 EP1387000 A1 EP 1387000A1 EP 03101493 A EP03101493 A EP 03101493A EP 03101493 A EP03101493 A EP 03101493A EP 1387000 A1 EP1387000 A1 EP 1387000A1
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EP
European Patent Office
Prior art keywords
web
transfer device
suction element
fibrous web
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.)
Withdrawn
Application number
EP03101493A
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German (de)
French (fr)
Inventor
Herbert Boden
Wolfgang Hiller
Reinhard Leigraf
Eva Dr. Scheideler
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 EP1387000A1 publication Critical patent/EP1387000A1/en
Withdrawn legal-status Critical Current

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    • 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

Definitions

  • the invention relates to a web transfer device to support the transfer a paper, cardboard, tissue or other fibrous web between two endless revolving bands, at least the receiving band is permeable to air in a machine for producing and / or refining the Fibrous web.
  • suction rollers are usually used, which are wrapped in the receiving belt.
  • the negative pressure emanating from the suction rolls supports the takeover of the fibrous web by the belt.
  • these suction rolls are relatively expensive and noisy.
  • the object of the invention is therefore to have a simple structure To create web transfer device with reduced noise.
  • the object was achieved in that the receiving tape in the area of the transfer of the fibrous web at one opposite the fibrous web arranged, stationary suction element is passed.
  • the fixed suction element can be designed much easier than one rotating. In addition, there is no need for ventilation of the perforation of the Noise is generated by the roller jacket of suction rollers.
  • Suction element transverse to the web running direction over at least a substantial part of the preferably extend over the entire width of the fibrous web.
  • Suction element at least transversely to the web running direction has several sectors, wherein the level of the negative pressure of the sectors can be adjusted separately. Because of the danger of Tearing the edges of the fibrous web must often be much stronger leading band can be fixed as the middle area. Therefore, the suction element have at least one, preferably two edge sections. This allows it in addition, the transfer of an edge band when transferring the fibrous web support separately during the start-up of the machine.
  • the suction element in Web direction has several separately controllable sectors. So that the height of the negative pressure of the individual stages during the takeover of the fibrous web be adjusted.
  • the suction element with a vacuum source is connected.
  • the vacuum can then only or in certain Sections for generating the suction or to support the Blowing air can be used.
  • the transferring tape should be able to bring the transferring tape in front of and after the suction element are guided over a guide roller.
  • the Machine speed or the type of fibrous web should be at least one of the Guide rolls of the strips in a changing the distance between the strips Way adjustable.
  • the transfer of the The fibrous web is still supported by the fact that the transferring belt in Area of transfer of the fibrous web at one opposite the fibrous web arranged blowing element is passed, the blowing air of which essentially Fibrous web is directed.
  • the blown air therefore flows through the transfer belt and thus leads to the detachment of the fibrous web.
  • the transferring belt should a web detachment device can be assigned.
  • This web separation device reduces the risk of running along the fibrous web or parts thereof passing band significantly, which is because of the resulting Damage to the machine is essential. It is advantageous if the Web release device comprises at least one scraper and / or an air knife.
  • the fibrous web 1 is here of an air-permeable, endlessly rotating Volume 2 in the form of a forming wire or a press felt of a paper machine Web transfer device guided. There, the fibrous web 1 is also a hand over endless, air-permeable belt 3 in the form of a press felt.
  • the transfer belt 2 After the delivery of the fibrous web 1, the transfer belt 2 over a Guide roller 4 guided away from the area of transfer of the fibrous web 1.
  • This Guide roller 4 is 2,3 to change the distance between the two belts positionally adjustable. So that the distance can correspond to the mode of operation of the Paper machine, the type of fibrous web 1 and / or Machine speed can be set.
  • the transferring belt 2 In front of the guide roller 4, the transferring belt 2 is in the area of the transfer of the Fibrous web 1 on one extending transversely to the web running direction 12 Blowing element 10 in the form of a blow pipe.
  • the blowing air of this Blow pipe is directed at least with one component to the fibrous web 1 and thus causes the fibrous web 1 to detach from the transferring belt 2.
  • the blowing air of this air knife 11 is with a Component directed to the transferring belt 2 and should thus follow the Counteract fibrous web 1 or residues thereof. Since the air knife 11 here in Area of the guide roller 4 is arranged, the blowing air of the air knife 11th also be used to transfer the fibrous web 1 to the receiving belt 3 to push.
  • the receiving belt 3 is before and after the transfer area over one each Guide roller 8.9 out.
  • a suction element is located between these guide rollers 8, 9 5, on which the receiving band 3 in the area of the transfer of the Fibrous web 1 passes.
  • the vacuum generated by the suction element 5 is said Pull fibrous web 1 towards the receiving belt 3 and therefore extends over the entire width of the fibrous web 1.
  • the suction element 5 is designed here as a stationary box, with the negative pressure is generated according to the injector principle via blown air 6.
  • the blown air 6 is about directed parallel to the receiving belt 3 in the web running direction 12.
  • the exhaust air 7 is back in the box recycled. This discharge can still be done by connecting to a Vacuum source are supported.
  • the box in terms of The strength of the vacuum can be divided into separately controllable sectors.

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  • Advancing Webs (AREA)

Abstract

In a paper-making machine process a paper web (1) moving with a first endless belt (2) is released and surrendered to a second air-permeable endless belt (3). In the vicinity of the transfer the air-permeable endless belt (3) is esp. in close proximity to a fixed suction box (5). The suction box (5) is transverse to the direction of web movement (12) and extends pref. the entire width of the web (1). The suction box has two edge sections. The pressure reduction in the box (5) is generated by air (3) blowing approx. along the pick-up belt (3). The suction unit (5) is linked to an air extractor.

Description

Die Erfindung betrifft eine Bahnübergabevorrichtung zur Unterstützung der Übergabe einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn zwischen zwei endlos umlaufenden Bändern, von denen zumindest das übernehmende Band luftdurchlässig ist, in einer Maschine zur Herstellung und/oder Veredlung der Faserstoffbahn.The invention relates to a web transfer device to support the transfer a paper, cardboard, tissue or other fibrous web between two endless revolving bands, at least the receiving band is permeable to air in a machine for producing and / or refining the Fibrous web.

Hierbei finden in der Regel Saugwalzen Anwendung, die vom übernehmenden Band umschlungen sind. Der von den Saugwalzen ausgehende Unterdruck unterstützt die Übernahme der Faserstoffbahn durch das Band.
Diese Saugwalzen sind jedoch relativ teuer und laut.In this case, suction rollers are usually used, which are wrapped in the receiving belt. The negative pressure emanating from the suction rolls supports the takeover of the fibrous web by the belt.
However, these suction rolls are relatively expensive and noisy.

Die Aufgabe der Erfindung ist es daher, eine einfach aufgebaute Bahnübergabevorrichtung mit reduzierter Lärmentwicklung zu schaffen.The object of the invention is therefore to have a simple structure To create web transfer device with reduced noise.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass das übernehmende Band im Bereich der Übergabe der Faserstoffbahn an einem gegenüber der Faserstoffbahn angeordneten, stationären Saugelement vorbeigeführt wird.According to the invention, the object was achieved in that the receiving tape in the area of the transfer of the fibrous web at one opposite the fibrous web arranged, stationary suction element is passed.

Das feststehende Saugelement kann wesentlich einfacher gestaltet werden als ein rotierendes. Außerdem entfällt der, bei der Belüftung der Perforation des Walzenmantels von Saugwalzen entstehende Lärm.The fixed suction element can be designed much easier than one rotating. In addition, there is no need for ventilation of the perforation of the Noise is generated by the roller jacket of suction rollers.

Um die Bahnübergabe möglichst umfassend unterstützen zu können, sollte sich das Saugelement quer zur Bahnlaufrichtung über zumindest einen wesentlichen Teil der, vorzugsweise über die gesamte Breite der Faserstoffbahn erstrecken.In order to be able to support the rail handover as comprehensively as possible, that should be Suction element transverse to the web running direction over at least a substantial part of the preferably extend over the entire width of the fibrous web.

Da die Faserstoffbahn über ihre Breite unterschiedlich stark ausgeprägte Unterstützung bei der Übergabe an das Band benötigt, ist es vorteilhaft, wenn das Saugelement wenigstens quer zur Bahnlaufrichtung mehrere Sektoren besitzt, wobei die Höhe des Unterdrucks der Sektoren separat einstellbar ist. Wegen der Gefahr des Einreißens der Ränder der Fasestoffbahn müssen diese oft wesentlich stärker am führenden Band fixiert werden als der mittlere Bereich. Daher sollte das Saugelement zumindest eine, vorzugsweise zwei Rand-Sektionen besitzen. Dies erlaubt es außerdem, die Übergabe eines Randbändels beim Überführen der Faserstoffbahn während des Anlaufs der Maschine separat zu unterstützen.Because the fibrous web has different degrees of strength across its width If you need assistance with the transfer to the tape, it is advantageous if that Suction element at least transversely to the web running direction has several sectors, wherein the level of the negative pressure of the sectors can be adjusted separately. Because of the danger of Tearing the edges of the fibrous web must often be much stronger leading band can be fixed as the middle area. Therefore, the suction element have at least one, preferably two edge sections. This allows it in addition, the transfer of an edge band when transferring the fibrous web support separately during the start-up of the machine.

Je nach Bedarf kann es auch von Vorteil sein, wenn das Saugelement in Bahnlaufrichtung mehrere separat steuerbare Sektoren besitzt. Damit kann die Höhe des Unterdrucks den einzelnen Stufen während der Übernahme der Faserstoffbahn angepasst werden.Depending on requirements, it can also be advantageous if the suction element in Web direction has several separately controllable sectors. So that the height of the negative pressure of the individual stages during the takeover of the fibrous web be adjusted.

Da die Unterdruckerzeugung relativ teuer ist, ist es vorteilhaft, wenn der Unterdruck des Saugelementes über etwa entlang des übernehmenden Bandes gerichtete Blasluft nach dem Injektorprinzip erzeugt wird. Die Blasluft sollte dann am gegenüberliegenden Ende des Saugelementes abgeführt werden.Since the vacuum generation is relatively expensive, it is advantageous if the vacuum of the suction element about directed along the receiving belt Blown air is generated according to the injector principle. The blowing air should then be on opposite end of the suction element are discharged.

Es ist jedoch auch möglich, dass das Saugelement mit einer Unterdruckquelle verbunden wird. Der Unterdruck kann dann ausschließlich oder in bestimmten Sektionen für das Erzeugen der Saugwirkung oder aber zur Unterstützung des Abführens der Blasluft benutzt werden.However, it is also possible that the suction element with a vacuum source is connected. The vacuum can then only or in certain Sections for generating the suction or to support the Blowing air can be used.

Um das übernehmende Band auf platzsparende Weise möglichst nahe an das übergebende Band heranführen zu können, sollte das übernehmende Band vor und nach dem Saugelement über je eine Leitwalze geführt werden.In order to save the receiving tape as close as possible to the The transferring tape should be able to bring the transferring tape in front of and after the suction element are guided over a guide roller.

Zur Anpassung an die unterschiedlichen Betriebszustände der Maschine, die Maschinengeschwindigkeit oder die Art der Faserstoffbahn sollte wenigstens eine der Leitwalzen der Bänder in einer den Abstand zwischen den Bändern verändernden Weise verstellbar sein. To adapt to the different operating states of the machine, the Machine speed or the type of fibrous web should be at least one of the Guide rolls of the strips in a changing the distance between the strips Way adjustable.

Sofern das übergebende Band luftdurchlässig ist, kann die Übergabe der Faserstoffbahn noch dadurch unterstützt werden, dass das übergebende Band im Bereich der Übergabe der Faserstoffbahn an einem gegenüber der Faserstoffbahn angeordneten Blaselement vorbeigeführt wird, dessen Blasluft im wesentlichen zur Faserstoffbahn gerichtet ist. Die Blasluft strömt folglich durch das übergebende Band und führt so zur Ablösung der Faserstoffbahn.If the transferring belt is permeable to air, the transfer of the The fibrous web is still supported by the fact that the transferring belt in Area of transfer of the fibrous web at one opposite the fibrous web arranged blowing element is passed, the blowing air of which essentially Fibrous web is directed. The blown air therefore flows through the transfer belt and thus leads to the detachment of the fibrous web.

Nach dem Bereich der Übergabe der Faserstoffbahn sollte dem übergebenden Band eine Bahnablösevorrichtung zugeordnet werden. Diese Bahnablösevorrichtung vermindert die Gefahr des Mitlaufens der Faserstoffbahn oder Teilen davon am übergebenden Band erheblich, was wegen der sich dabei einstellenden Beschädigungen der Maschine wesentlich ist. Dabei ist es von Vorteil, wenn die Bahnablösevorrichtung zumindest einen Schaber und/oder ein Luftmesser umfasst.After the area of handover of the fibrous web, the transferring belt should a web detachment device can be assigned. This web separation device reduces the risk of running along the fibrous web or parts thereof passing band significantly, which is because of the resulting Damage to the machine is essential. It is advantageous if the Web release device comprises at least one scraper and / or an air knife.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt die Figur einen schematischen Querschnitt durch eine Bahnübergabevorrichtung.The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing, the figure shows a schematic cross section through a web transfer device.

Die Faserstoffbahn 1 wird hier von einem luftdurchlässigen, endlos umlaufenden Band 2 in Form eines Formersiebes oder eines Pressfilzes einer Papiermaschine zur Bahnübergabevorrichtung geführt. Dort wird die Faserstoffbahn 1 an ein ebenfalls endlos umlaufendes, luftdurchlässiges Band 3 in Form eines Pressfilzes übergeben.The fibrous web 1 is here of an air-permeable, endlessly rotating Volume 2 in the form of a forming wire or a press felt of a paper machine Web transfer device guided. There, the fibrous web 1 is also a hand over endless, air-permeable belt 3 in the form of a press felt.

Nach der Abgabe der Faserstoffbahn 1 wird das übergebende Band 2 über eine Leitwalze 4 vom Bereich der Übergabe der Faserstoffbahn 1 weggeführt. Diese Leitwalze 4 ist zur Veränderung des Abstandes zwischen den beiden Bändern 2,3 lageverstellbar. Damit kann der Abstand entsprechend der Betriebsweise der Papiermaschine, der Art der Faserstoffbahn 1 und/oder der Maschinengeschwindigkeit eingestellt werden. After the delivery of the fibrous web 1, the transfer belt 2 over a Guide roller 4 guided away from the area of transfer of the fibrous web 1. This Guide roller 4 is 2,3 to change the distance between the two belts positionally adjustable. So that the distance can correspond to the mode of operation of the Paper machine, the type of fibrous web 1 and / or Machine speed can be set.

Vor der Leitwalze 4 wird das übergebende Band 2 im Bereich der Übergabe der Faserstoffbahn 1 an einem sich quer zur Bahnlaufrichtung 12 erstreckenden Blaselement 10 in Form eines Blasrohres vorbeigeführt. Die Blasluft dieses Blasrohres ist zumindest mit einer Komponente zur Faserstoffbahn 1 gerichtet und bewirkt so das Ablösen der Faserstoffbahn 1 vom übergebenden Band 2.In front of the guide roller 4, the transferring belt 2 is in the area of the transfer of the Fibrous web 1 on one extending transversely to the web running direction 12 Blowing element 10 in the form of a blow pipe. The blowing air of this Blow pipe is directed at least with one component to the fibrous web 1 and thus causes the fibrous web 1 to detach from the transferring belt 2.

Nach dem Übergabebereich befindet sich ein quer zur Bahnlaufrichtung 12 verlaufendes Luftmesser 11. Die Blasluft dieses Luftmessers 11 ist mit einer Komponente auf das übergebende Band 2 gerichtet und soll so dem Mitlaufen der Faserstoffbahn 1 oder Resten davon entgegen wirken. Da das Luftmesser 11 hier im Bereich der Leitwalze 4 angeordnet ist, kann die Blasluft des Luftmessers 11 außerdem dazu benutzt werden, die Faserstoffbahn 1 zum übernehmenden Band 3 hin zu drücken.After the transfer area there is a transverse to the web running direction 12 running air knife 11. The blowing air of this air knife 11 is with a Component directed to the transferring belt 2 and should thus follow the Counteract fibrous web 1 or residues thereof. Since the air knife 11 here in Area of the guide roller 4 is arranged, the blowing air of the air knife 11th also be used to transfer the fibrous web 1 to the receiving belt 3 to push.

Das übernehmende Band 3 wird vor und nach dem Übergabebereich über je eine Leitwalze 8,9 geführt. Zwischen diesen Leitwalzen 8,9 befindet sich ein Saugelement 5, an welchem das übernehmende Band 3 im Bereich der Übergabe der Faserstoffbahn 1 vorbeiläuft. Der vom Saugelement 5 erzeugte Unterdruck soll die Faserstoffbahn 1 zum übernehmenden Band 3 hin ziehen und erstreckt sich daher über die gesamte Breite der Faserstoffbahn 1.The receiving belt 3 is before and after the transfer area over one each Guide roller 8.9 out. A suction element is located between these guide rollers 8, 9 5, on which the receiving band 3 in the area of the transfer of the Fibrous web 1 passes. The vacuum generated by the suction element 5 is said Pull fibrous web 1 towards the receiving belt 3 and therefore extends over the entire width of the fibrous web 1.

Das Saugelement 5 ist hier als stationärer Kasten ausgeführt, wobei der Unterdruck nach dem Injektorprinzip über Blasluft 6 erzeugt wird. Die Blasluft 6 ist dabei etwa parallel zum übernehmenden Band 3 in Bahnlaufrichtung 12 gerichtet. Am gegenüberliegenden Ende des Kastens wird die Abluft 7 wieder in den Kasten zurückgeführt. Diese Abführung kann noch durch eine Verbindung mit einer Unterdruckquelle unterstützt werden. Außerdem kann der Kasten in bezüglich der Stärke des Unterdrucks separat steuerbare Sektoren unterteilt werden.The suction element 5 is designed here as a stationary box, with the negative pressure is generated according to the injector principle via blown air 6. The blown air 6 is about directed parallel to the receiving belt 3 in the web running direction 12. At the opposite end of the box, the exhaust air 7 is back in the box recycled. This discharge can still be done by connecting to a Vacuum source are supported. In addition, the box in terms of The strength of the vacuum can be divided into separately controllable sectors.

Claims (12)

Bahnübergabevorrichtung zur Unterstützung der Übergabe einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn (1) zwischen zwei endlos umlaufenden Bändern (2,3), von denen zumindest das übernehmende Band (3) luftdurchlässig ist, in einer Maschine zur Herstellung und/oder Veredlung der Faserstoffbahn (1), dadurch gekennzeichnet, dass
das übernehmende Band (3) im Bereich der Übergabe der Faserstoffbahn (1) an einem gegenüber der Faserstoffbahn (1) angeordneten, stationären Saugelement (5) vorbeigeführt wird.Web transfer device for supporting the transfer of a paper, cardboard, tissue or other fibrous web (1) between two endless belts (2, 3), of which at least the receiving belt (3) is permeable to air, in a machine for producing and / or finishing of the fibrous web (1), characterized in that
the receiving belt (3) is guided past a stationary suction element (5) arranged opposite the fiber web (1) in the area of the transfer of the fiber web (1). Bahnübergabevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich das Saugelement (5) quer zur Bahnlaufrichtung (12) erstreckt.Web transfer device according to claim 1, characterized in that the suction element (5) extends transversely to the web running direction (12). Bahnübergabevorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sich das Saugelement (5) über zumindest einen wesentlichen Teil der, vorzugsweise über die gesamte Breite der Faserstoffbahn (1) erstreckt.Web transfer device according to claim 2, characterized in that the suction element (5) extends over at least a substantial part of the, preferably over the entire width of the fibrous web (1). Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
das Saugelement (5) wenigstens quer zur Bahnlaufrichtung (12) mehrere Sektoren besitzt, wobei die Höhe des Unterdrucks der Sektoren separat einstellbar ist.Railway transfer device according to one of the preceding claims, characterized in that
the suction element (5) has several sectors at least transversely to the web running direction (12), the height of the negative pressure of the sectors being adjustable separately. Bahnübergabevorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das Saugelement (5) zumindest eine, vorzugsweise zwei Rand-Sektionen besitzt.Web transfer device according to claim 4, characterized in that the suction element (5) has at least one, preferably two edge sections. Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
der Unterdruck des Saugelementes (5) über etwa entlang des übernehmenden Bandes (3) gerichtete Blasluft (6) erzeugt wird.Railway transfer device according to one of the preceding claims, characterized in that
the vacuum of the suction element (5) is generated by blowing air (6) directed approximately along the receiving belt (3). Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
das Saugelement (5) mit einer Unterdruckquelle verbunden ist.Railway transfer device according to one of the preceding claims, characterized in that
the suction element (5) is connected to a vacuum source. Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
das übernehmende Band (3) vor und nach dem Saugelement (5) über je eine Leitwalze (8,9) geführt wird.Railway transfer device according to one of the preceding claims, characterized in that
the accepting belt (3) is guided before and after the suction element (5) over a guide roller (8,9). Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
wenigstens eine der Leitwalzen (4,8,9) der Bänder (2,3) in einer den Abstand zwischen den Bändern (2,3) verändernden Weise verstellbar ist.Railway transfer device according to one of the preceding claims, characterized in that
at least one of the guide rollers (4, 8, 9) of the belts (2, 3) can be adjusted in a manner that changes the distance between the belts (2, 3). Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
das übergebende Band (2) luftdurchlässig ist und im Bereich der Übergabe der Faserstoffbahn (1) an einem gegenüber der Faserstoffbahn (1) angeordneten Blaselement (10) vorbeigeführt wird, dessen Blasluft im wesentlichen zur Faserstoffbahn (1) gerichtet ist.Railway transfer device according to one of the preceding claims, characterized in that
the transferring belt (2) is permeable to air and in the area of the transfer of the fibrous web (1) is guided past a blowing element (10) arranged opposite the fibrous web (1), the blowing air of which is essentially directed towards the fibrous web (1). Bahnübergabevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
dem übergebenden Band (2) nach dem Bereich der Übergabe der Faserstoffbahn (1) eine Bahnablösevorrichtung zugeordnet wird.Railway transfer device according to one of the preceding claims, characterized in that
a web detachment device is assigned to the transferring belt (2) after the area of transfer of the fibrous web (1). Bahnübergabevorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Bahnablösevorrichtung zumindest einen Schaber und/oder ein Luftmesser (11) umfasst.Web transfer device according to claim 11, characterized in that the web release device comprises at least one scraper and / or an air knife (11).
EP03101493A 2002-06-21 2003-05-23 Web transfer apparatus Withdrawn EP1387000A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10227757 2002-06-21
DE2002127757 DE10227757A1 (en) 2002-06-21 2002-06-21 Web transfer unit for paper, carton or tissue is surrendered from a first endless belt to a second air-permeable endless belt in the vicinity of a suction box

Publications (1)

Publication Number Publication Date
EP1387000A1 true EP1387000A1 (en) 2004-02-04

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EP03101493A Withdrawn EP1387000A1 (en) 2002-06-21 2003-05-23 Web transfer apparatus

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122309B (en) * 2008-03-28 2011-11-30 Metso Paper Inc Method and apparatus for transferring one fibrous web from one backing cloth to another

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DE1117992B (en) * 1957-04-05 1961-11-23 Voith Ag J M Device for automatic transfer of the wet paper web in the paper machine from the suction roll to the removal cloth
US4113557A (en) * 1976-04-14 1978-09-12 Valmet Oy Paper manufacturing structure particularly for detaching a web from a wire
US4698919A (en) * 1986-04-08 1987-10-13 Beloit Corp. Apparatus for assisting the transfer of a web to a drying section
US5031338A (en) * 1987-02-13 1991-07-16 Beloit Corporation Vacuum roll transfer apparatus
US5232555A (en) * 1988-09-29 1993-08-03 Pulp And Paper Research Institute Of Canada Wet cellulosic web transfer method using air doctor blade
US5830321A (en) * 1997-01-29 1998-11-03 Kimberly-Clark Worldwide, Inc. Method for improved rush transfer to produce high bulk without macrofolds
US6306257B1 (en) * 1998-06-17 2001-10-23 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web

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Publication number Priority date Publication date Assignee Title
DE69716968T2 (en) * 1996-09-03 2003-03-20 The Procter & Gamble Company, Cincinnati VACUUM DEVICE FOR CONTROLLING VACUUM PRESSURE IN A PAPER PRODUCTION METHOD WITH AIR DRYING

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117992B (en) * 1957-04-05 1961-11-23 Voith Ag J M Device for automatic transfer of the wet paper web in the paper machine from the suction roll to the removal cloth
US4113557A (en) * 1976-04-14 1978-09-12 Valmet Oy Paper manufacturing structure particularly for detaching a web from a wire
US4698919A (en) * 1986-04-08 1987-10-13 Beloit Corp. Apparatus for assisting the transfer of a web to a drying section
US5031338A (en) * 1987-02-13 1991-07-16 Beloit Corporation Vacuum roll transfer apparatus
US5232555A (en) * 1988-09-29 1993-08-03 Pulp And Paper Research Institute Of Canada Wet cellulosic web transfer method using air doctor blade
US5830321A (en) * 1997-01-29 1998-11-03 Kimberly-Clark Worldwide, Inc. Method for improved rush transfer to produce high bulk without macrofolds
US6306257B1 (en) * 1998-06-17 2001-10-23 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web

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