EP1424441B1 - Process and apparatus for threading a paper web - Google Patents
Process and apparatus for threading a paper web Download PDFInfo
- Publication number
- EP1424441B1 EP1424441B1 EP02026549A EP02026549A EP1424441B1 EP 1424441 B1 EP1424441 B1 EP 1424441B1 EP 02026549 A EP02026549 A EP 02026549A EP 02026549 A EP02026549 A EP 02026549A EP 1424441 B1 EP1424441 B1 EP 1424441B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- tail
- arrangement
- air jet
- severing
- 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 - Fee Related
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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 method and apparatus for transferring a threading strip which is part of a moving paper web.
- a method and the associated device are in the DE-A-101 15 618 described.
- the strip is thereby transferred from a web-issuing web guide surface to a web conveyor, wherein the edge strip of the web by means of at least one high-energy air jet detaches from the web guide surface and thereby simultaneously severed transversely, so that the EinfädelstMail detected with its newly formed beginning by the web conveyor and the next unit of a production and / or treatment of the web serving machine, in particular paper machine, is forwarded.
- peripheral nozzles used for this purpose work pneumatically with high-energy air jets.
- a web conveyor is known.
- This device has a separator with a fixed knife.
- the separator is attached to an inlet device and can only be moved together with this.
- the present invention has for its object to provide a method and apparatus with the at high speeds and papers of higher surface mass (FbM), such. As packaging papers or cardboard can be transferred.
- FbM higher surface mass
- the object is achieved by a method according to claim 1 and a device according to claim 3.
- a first and a second rotating blade are provided as the mechanical separating device. Both knives are circular knives, which are provided with a drive.
- the device according to the invention works in such a way that by means of the edge nozzles under short-time high pressure the threading strip is released from the web-dispensing surface-for example the last drying cylinder-simultaneously pre-cut or perforated and "hidden” by means of the invention. arranged and brought into appropriate position mechanical separation device the web or the belt is finally severed across.
- Such a mechanical separation device is known from the EP-B-0554339 in which arranged in a plane and driven, counter-rotating blades are provided.
- Another advantage of the invention is also that with one and the same device according to the invention both low and high basis weight paper can be transferred.
- connection of the mechanical separating device is decided.
- a further expedient embodiment of the invention consists in the provision of a further blowing device.
- a blowing device is in the DE-A-100 31 644 described. With this additional blowing device, a so-called double-tail formation of the threading strip or . Beginning of the web in the area of the web-emitting web guide surface and the web conveyor device are resolved better and faster than before.
- From the further blowing device is such an air jet, whose Speed is temporarily greater than the speed of the threading strip or the entire web to be transferred (with a smaller web width).
- the said air jet blows in the direction of an unintentionally formed or even forming pocket-like folding (double tail) of the threading strip at the beginning of transfer.
- the double-tail dissolves again, so that the threading strip can continue to stretch again and a controlled overpass is possible.
- the speed of the air jet is at least temporarily greater than 1.2 to 3 times the speed of the threading strip.
- the air jet is thereby activated in a pulse during the transfer process, including the same source of compressed air, which is provided for the peripheral nozzles, but also a separate source is used.
- a running board web or one of her longitudinally separated EinfädelstMail (Bändel) 2 a broad board web of about 200 g / m 2 FbM is transferred to a next - not shown treatment step 7.
- the cylinder 1 is associated with an assembly 10, a web conveyor, which in the example chosen three formed from a rectangular hollow profile high-pressure chambers 15 a, b, c, a guide plate 17 for the strip 2a to be transferred (or web), a low-pressure chamber 18th , as well as the chamber 18 includes delimiting walls 19,20.
- a web conveyor which in the example chosen three formed from a rectangular hollow profile high-pressure chambers 15 a, b, c, a guide plate 17 for the strip 2a to be transferred (or web), a low-pressure chamber 18th , as well as the chamber 18 includes delimiting walls 19,20.
- Either branches from the upper chamber 15 a - the width of the web or the strip associated - edge nozzles 21 from, or the edge nozzles 21 are, as shown in Figure 1 , acted upon by a high-pressure line 30.
- the edge nozzles are shown in Figure 1 as a c-shaped piece of pipe and solve with their short-term high-pressure compressed air jet from 7 to 10 bar, preferably 5 bar, the strip from the cylinder 1. depending on how high the basis weight (FbM) of the paper is at the same time takes place at the same time at least one perforation or pre-separation of the strip in the transverse direction.
- a mechanically acting separating device 40 is arranged between two lower high-pressure chambers 15 b and 15 c.
- This hidden and protected arrangement protects the operator of the paper machine from accidents that may arise due to the presence of knives.
- This separating device 40 is, as the double arrow in Figure 1 shows, displaceable from a waiting - trained in a working position or for the sake of separation.
- the separating device 40 consists of two substantially horizontally aligned in a plane circular blades 41 and 42 with cutting edges 43, as shown in Figure 2 .
- the knives are arranged so that they rotate in opposite directions, describing overlapping circles.
- the knives 41 and 42 are each with a own, not shown in more detail in the figures but known per se, drive 45 provided.
- the incoming from the drying cylinder 1, detached from the two edge nozzles 21 and, if appropriate, depending on FbM of the web at least precut strip 2 is thereby finally cleanly and quickly cut across.
- the chamber 15b has an upward blow opening 51 and a rounded, upwardly directed guide wall 55, under the effect of the known Coanda effect in the region of the wall 55, a negative pressure is generated, which feeds the new beginning of the strip 2a of said guide plate 17 and from where the ribbon is transported on to the transfer area (not shown) of a following machine section 7.
- Coanda nozzle 57 which is designed approximately like the nozzle 51, is arranged inside the guide plate 17.
- the blowing speed during the transfer process is approximately 1.2 to 3 times the web speed.
- the line 30 is also available or it is an additional, not shown in the figures, compressed air line available.
Landscapes
- Replacement Of Web Rolls (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Advancing Webs (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Überführen eines Einfädelstreifens, der Teil einer laufenden Papierbahn ist. Ein solches Verfahren und die dazugehörende Vorrichtung sind in der
Mit einem solchen Verfahren und der dazugehörenden Vorrichtung ist nicht nur das Ablösen des Streifens von der bahnabgebenden Bahnführungsfläche, sondern gleichzeitig auch das Quer-Durchtrennen möglich. Die dazu verwendeten Randdüsen arbeiten auf pneumatischem Wege mit Hochenergie-Luftstrahlen.With such a method and the associated device not only the detachment of the strip from the web-emitting web guide surface, but at the same time also the transverse cutting is possible. The peripheral nozzles used for this purpose work pneumatically with high-energy air jets.
Das genannte Verfahren und die Vorrichtung sind bereits geeignet für höhere Arbeits- bzw. Bahngeschwindigkeiten und für Papierbahnen mit geringer flächenbezogener Masse (FbM).Said method and apparatus are already suitable for higher web speeds and low basis weight webs (FbM).
Der Vollständigkeit halber soll in diesem Zusammenhang auf die Broschüre "
Aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung anzugeben mit dem bei hohen Arbeitsgeschwindigkeiten auch Papiere von höherer flächenbezogener Masse (FbM), wie z. B. Verpackungspapiere oder Karton überführt werden können.The present invention has for its object to provide a method and apparatus with the at high speeds and papers of higher surface mass (FbM), such. As packaging papers or cardboard can be transferred.
Die Aufgabe wird erfindungsgemäß von einem Verfahren gemäß Anspruch 1 und einer Vorrichtung gemäß Anspruch 3 gelöst.The object is achieved by a method according to claim 1 and a device according to claim 3.
Erfindungsgemäß ist als mechanische Abtrenneinrichtung ein erstes und ein zweites rotierendes Messer vorgesehen. Beide Messer sind Rundmesser, die mit einem Antrieb versehen sind.According to the invention, a first and a second rotating blade are provided as the mechanical separating device. Both knives are circular knives, which are provided with a drive.
Durch das Vorsehen einer zusätzlichen mechanischen Abtrenneinrichtung in Kombination mit den in der
Bisher war das Überführen relativ dicker Bahnen von einer Maschinensektion zur nächsten auch deshalb sehr problematisch, weil die verwendeten Trenneinrichtungen manchmal zu einem Papierstau führten. Das Entfernen von gestautem Papier erfolgte dabei von Hand, was widerum mit der Gefahr von Verletzungen verbunden war.Up to now, the transfer of relatively thick webs from one machine section to the next was also very problematic because the separators used sometimes led to a paper jam. The removal of jammed paper was done by hand, which in turn was associated with the risk of injury.
Nunmehr ist es mit der erfinderischen Lösung gelungen, auch bei hohen Bahngeschwindigkeiten Papier mit hoher flächenbezogener Masse derart zu überführen, dass Papierstau und Verletzungsgefahr so gut wie ausgeschlossen sind.Now, with the inventive solution, it has been possible to transfer paper with a high surface-related mass, even at high web speeds, in such a way that paper jams and the risk of injury are virtually eliminated.
Die erfindungsgemäße Vorrichtung funktioniert dabei so, dass mittels der Randdüsen unter kurzzeitigem Hochdruck der Einfädelstreifen von der bahnabgebenden Fläche - beispielsweise dem letzten Trockenzylinder - gelöst , gleichzeitig vorgeschnitten bzw. perforiert wird und mittels der erfindungsgemäß "versteckt" angeordneten und in entsprechende Position gebrachter mechanischen Abtrenneinrichtung die Bahn bzw. der Bändel endgültig quer durchtrennt wird.The device according to the invention works in such a way that by means of the edge nozzles under short-time high pressure the threading strip is released from the web-dispensing surface-for example the last drying cylinder-simultaneously pre-cut or perforated and "hidden" by means of the invention. arranged and brought into appropriate position mechanical separation device the web or the belt is finally severed across.
Eine derartige mechanische Abtrenneinrichtung ist bekannt aus der
Beim praktischen Einsatz dieser Trenneinrichtung kam es allerdings manchmal zu den oben dargelegten Papierstaus mit den angegebenen negativen Folgen. Mit der erfindungsgemäßen "versteckten" Anordnung der Trenneinrichtung wird dies, wie oben schon dargelegt, verhindert, zumindest aber weitgehend vermindert.In the practical use of this separator, however, it sometimes came to the above-mentioned paper jams with the specified negative consequences. As already explained above, with the "hidden" arrangement of the separating device according to the invention, this is prevented, but at least largely reduced.
Ein weiterer Vorteil der Erfindung besteht auch darin, dass mit ein und derselben erfindungsgemäßen Vorrichtung sowohl Papier mit niedrigem, als auch hohem Flächengewicht überführbar ist.Another advantage of the invention is also that with one and the same device according to the invention both low and high basis weight paper can be transferred.
Je nachdem welche Papiersorte in der Papiermaschine herzustellen und/oder zu behandeln ist, wird über die Zuschaltung der mechanischen Trenneinrichtung entschieden.Depending on which type of paper is to be produced and / or treated in the paper machine, the connection of the mechanical separating device is decided.
Auch eine bereits installierte Vorrichtung mit pneumatisch wirkenden Randdüsen kann auf einfache Weise mit der versteckten mechanischen Trenneinrichtung nachgerüstet werden.Even an already installed device with pneumatically acting edge nozzles can be retrofitted in a simple way with the hidden mechanical separator.
Eine weitere zweckmäßige Ausführung der Erfindung besteht in der Vorsehung einer weiteren Blaseinrichtung. Eine solche Blaseinrichtung ist in der
Diese Maßnahme ist sehr wichtig, weil so ein Doppel-Tail im weiteren Verlauf der Maschine sehr unkontrolliert umherflattern, sich stauen und zu Abrissen und damit zu Produktionausfällen führen kann.This measure is very important because such a double tail in the further course of the machine flutter around very uncontrolled, can accumulate and lead to demolition and thus production losses.
Von der weiteren Blaseinrichtung geht ein solcher Luftstrahl aus, dessen Geschwindigkeit vorübergehend größer als die Geschwindigkeit des zu überführenden Einfädelstreifens bzw. der ganzen Bahn (bei geringerer Bahnbreite) ist.From the further blowing device is such an air jet, whose Speed is temporarily greater than the speed of the threading strip or the entire web to be transferred (with a smaller web width).
Der genannte Luftstrahl bläst dabei in Richtung einer sich ungewollt gebildeten oder gerade bildenden taschenartigen Umklappung (Doppel-Tail) des Einfädelstreifens bei der beginnenden Überführung. Infolge dieser Strahlwirkung löst sich der Doppel-Tail wieder auf, so dass der Einfädelstreifen wird wieder gestreckt weiterlaufen kann und eine kontrollierte Bahnüberführung möglich ist.The said air jet blows in the direction of an unintentionally formed or even forming pocket-like folding (double tail) of the threading strip at the beginning of transfer. As a result of this beam effect, the double-tail dissolves again, so that the threading strip can continue to stretch again and a controlled overpass is possible.
Vorteilhafterweise ist die Geschwindigkeit des Luftstrahles zumindest vorübergehend größer als das 1,2 bis 3-fache der Geschwindigkeit des Einfädelstreifen. Der Luftstrahl wird beim Überführvorgang dabei impulsartig aktiviert, wozu dieselbe Druckluftquelle, die für die Randdüsen vorgesehen ist, aber auch eine gesonderte Quelle verwendbar ist.Advantageously, the speed of the air jet is at least temporarily greater than 1.2 to 3 times the speed of the threading strip. The air jet is thereby activated in a pulse during the transfer process, including the same source of compressed air, which is provided for the peripheral nozzles, but also a separate source is used.
Weitere zweckmäßige Ausgestaltungen ergeben sich aus den Unteransprüchen.Further expedient refinements emerge from the subclaims.
Insgesamt ergibt sich mit der erfindungsgemäßen Vorrichtung eine kompakte Einrichtung, die sich gleichermaßen gut für graphische Papiere als auch für Verpackungspapiere bzw. Karton einsetzen lässt.Overall, with the device according to the invention results in a compact device that can be used equally well for graphic papers as well as for packaging papers or cardboard.
Nachfolgend soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden:The invention will be explained in more detail below with reference to an exemplary embodiment:
Es zeigen:
- Fig 1:
- die erfindungsgemäße Streifen-Überführvorrichtung im Abgabebereich in schematischer Darstellung.
- Fig 2:
- die Draufsicht auf die erfindungsgemäße Vorrichtung
- Fig. 1:
- the strip transfer device according to the invention in the delivery area in a schematic representation.
- Fig. 2:
- the top view of the device according to the invention
Zur Vereinfachung werden für gleiche Bauteile in den Figuren auch gleiche Bezugszeichen verwendet.For simplicity, the same reference numerals are used for the same components in the figures.
Aus der Figur 1 ist eine bahnabgebende Fläche 1a, z. B. vom letzten Trockenzylinder 1 einer Papiermaschine entnehmbar, von dem eine laufende Kartonbahn bzw. ein von ihr längs abgetrennter Einfädelstreifen (Bändel) 2 einer breiten Kartonbahn von ca. 200 g/m2 FbM zu einem nächsten - nicht dargestellten Behandlungsschritt 7 überführt wird.From the figure 1 is a web-emitting
Dem Zylinder 1 ist eine Baugruppe 10 , eine Bahnfördervorrichtung, zugeordnet, die im gewählten Beispiel drei aus einem Rechteck-Hohlprofil ausgebildete Hochdruckkammern 15 a, b, c, eine Führungsplatte 17 für den zu überführenden Streifen 2a (bzw. Bahn), eine Niederdruckkammer 18, sowie die Kammer 18 begrenzende Wände 19,20 umfasst.The cylinder 1 is associated with an
Entweder zweigen aus der oberen Kammer 15 a - der Breite der Bahn bzw. dem Streifen zugeordnete - Randdüsen 21 ab, oder die Randdüsen 21 werden, wie in Figur 1 dargestellt, über eine Hochdruckleitung 30 beaufschlagt. Die Randdüsen sind in Figur 1 als c-förmiges Rohrstück dargestellt und lösen mit ihrem kurzzeitigen Hoch-Impuls-Druckluftstrahl von 7 bis 10 bar, vorzugsweise 5 bar, den Streifen vom Zylinder 1. je nachdem wie hoch die flächenbezogene Masse (FbM) des Papieres ist, erfolgt dabei auch gleichzeitig zumindest eine Perforierung oder Vortrennung des Streifens in Querrichtung.Either branches from the
Zwischen zwei untere Hochdruckkammern 15 b und 15 c ist eine mechanisch wirkende Abtrenneinrichtung 40 angeordnet. Durch diese versteckte und geschützte Anordnung wird das Bedienpersonal der Papiermaschine vor Unfällen, die sich auf Grund der vorhandenen Messer ergeben können, geschützt. Diese Abtrenneinrichtung 40 ist wie der Doppelpfeil in Fig.1 zeigt, verschiebbar von einer Warte - in eine Arbeitsposition bzw. für die wahlweise Durchtrennung ausgebildet. Die Abtrenneinrichtung 40 besteht aus zwei im wesentlichen horizontal in einer Ebene ausgerichteten Rundmessern 41 und 42 mit Schneidkanten 43, wie in Fig 2 dargestellt ist.Between two lower high-
Die Messer sind so angeordnet, dass sie gegenläufig rotieren und dabei einander überlappende Kreise beschreiben. Die Messer 41 und 42 sind jeweils mit einem eigenen, nicht näher in den Figuren dargestellten aber an sich bekannten, Antrieb 45 versehen. Der vom Trockenzylinder 1 ankommende, von den beiden Randdüsen 21 abgelöste und gegebenfalls je nach FbM der Bahn zumindest vorgeschnittene Streifen 2 wird dadurch endgültig sauber und schnell quer durchgetrennt.The knives are arranged so that they rotate in opposite directions, describing overlapping circles. The
Es soll erwähnt sein, dass als Antriebsmotoren sich sowohl Elektromotoren mit hoher Drehzahl, als auch luftgesteuerte Motoren eignen.It should be mentioned that both electric motors with high speed, as well as air-controlled motors are suitable as drive motors.
Da die Kammer 15b eine nach oben gerichtete Blasöffnung 51 sowie eine gerundete, nach oben gerichtete Führungswand 55 aufweist, wird unter Wirkung des bekannten Coanda-Effektes im Bereich der Wand 55 ein Unterdruck erzeugt, der den neuen Anfang des Bändels 2a der besagten Führungsplatte 17 zuführt und von wo aus der Bändel weitertransportiert wird zum (nicht dargestellten) Übernahmebereich einer folgenden Maschinensektion 7.Since the
Sehr vorteilhaft ist es auch, wenn dazu eine weitere, sogenannte Coanda-Düse 57, die in etwa wie Düse 51 gestaltet ist, innerhalb der Führungsplatte 17 angeordnet wird.It is also very advantageous if another, so-called
Hierdurch wird der Streifen bzw. eine schmale gesamte Bahn, flach und ohne zu flattern, überführt.As a result, the strip or a narrow entire web, flat and without fluttering transferred.
Oftmals bildet sich bei den heutigen schnelllaufenden Maschinen (zumeist über 2000m/min) ein sogenannter und unerwünschter Doppel-Tail 2c.Often forms in today's high-speed machines (usually over 2000m / min), a so-called and unwanted double-tail 2c.
Dies ist ein taschenartig umgeklappter Anfang des Streifens (bzw.Bahn).This is a pocket-like folded top of the strip.
Die Auflösung des Doppel-Tails bzw. seine flache Weiterführung wird mit einer zusätzlich angeordneten Blasluftdüse 50 erreicht. Die Blasluft ist deshalb direkt in die Tasche 2c gerichtet.The resolution of the double-Tails or its flat continuation is achieved with an additionally arranged
Die Blasgeschwindigkeit ist während des Überführvorganges ungefähr 1,2 bis 3 mal so hoch, wie die Bahngeschwindigkeit. Als Druckluftquelle ist ebenfalls die Leitung 30 nutzbar oder aber es ist eine zusätzliche, nicht in den Figuren dargestellte Druckluftleitung vorhanden.The blowing speed during the transfer process is approximately 1.2 to 3 times the web speed. As a compressed air source, the
Er soll noch erwähnt sein, dass weitere Blasöffnungen 51' in den Kammern 15a-c und in der Kammer 18 vorhanden sind, um einerseits das Überführen des Streifens 2a über Stufen 60 sowie eine gekrümmte Leitfläche 49 und andererseits den abgetrennten Teil 2b entlang der Wand 20 einwandfrei nach unten in den Pulper P zu leiten.It should also be mentioned that there are further blowing
Claims (11)
- Method of transferring an insertion tail (2), which is part of a continuous paper web or cardboard web of high grammage, such as packaging paper or cardboard, from a web-discharging web-guiding surface (1a), via a web conveying apparatus (10), to the next structural unit (7) of a machine for producing and/or handling the continuous paper web or cardboard web, the insertion tail (2) being detached from the web-guiding surface (1a) and cut on a preliminary basis by means of at least one brief high-energy air jet and being completely severed by an additional mechanical severing arrangement (40), it being the case that the mechanical severing arrangement (40) used is in the form of a first and a second rotating blade (41, 42), which are each provided with a drive and are displaced from a standby position into an operating position, and the mechanical severing operation using the severing arrangement (40) is coordinated in time with the operation of the high-energy air jet such that the mechanical severing operation takes place immediately following commencement of the operation of the high-energy air jet.
- Method according to Claim 1, characterized in that the situation where a new tail starts folds over in a pocket-like manner following the severing operation is avoided by means of an additional blowing arrangement (50).
- Apparatus for transferring a continuous insertion tail (2), which is part of a continuous paper web or cardboard web of high grammage, such as packaging paper or cardboard, from a web-discharging web-guiding surface (1a) to a web conveying apparatus (10), in particular in a machine for producing or processing a paper web, the apparatus having the following features:a) at least one border nozzle (21) for detaching the insertion tail (2) from the web-guiding surface (1a) is provided on at least one of the borders of the insertion tail;b) the at least one border nozzle (21) additionally performs the function of a severing arrangement for cutting the insertion tail (2) on a preliminary basis or perforating the same, it being designed such that it briefly expels a high-energy air jet between the web-discharging web-guiding surface (1a) and the insertion tail (2);c) an additional mechanical severing arrangement (40) is provided for completely severing the insertion tail (2) transversely, the mechanical severing arrangement (40) having a first and a second rotating blade (41, 42), which are each provided with a drive and can be displaced from a standby position into an operating position.
- Apparatus according to Claim 3, characterized in that the mechanical severing arrangement (40) is part of the web conveying apparatus (10) and can be moved in the latter, or with the latter, relative to the web-guiding surface (1a).
- Apparatus according to Claim 3 or 4, characterized in that the mechanical severing arrangement (40) is arranged in a concealed manner beneath a guide plate (17), between two high-pressure chambers (15b, 15c) arranged one above the other, the top high-pressure chamber (15b) having a blowing opening (51) which directs the tail (2a) which is to be transferred in the direction of the guide plate (17).
- Apparatus according to Claim 3, characterized in that the blades (41, 42) each have a plurality of spaced-apart cutting edges (43) on the circumference.
- Apparatus according to Claim 3 and 6, characterized in that the blades (41, 42) are fitted such that they describe mutually overlapping circles as they rotate in opposite directions to one another.
- Apparatus according to Claim 3 to 7, characterized in that the blades (41, 42) are fitted at a small distance apart from one another in one plane.
- Apparatus according to Claim 3, characterized in that an additional blowing arrangement (50) is provided for eliminating a pocket-like folded-over start (2c) of the insertion tail (2) which has formed.
- Apparatus according to Claim 9, characterized in that the blowing arrangement (50) emits an air jet in the direction of the pocket-like folded-over section (2c) of the insertion tail (2) which is at least temporarily greater than the speed of the severed tail (2b).
- Apparatus according to Claim 10, characterized in that the speed of the air jet (51) is at least temporarily greater than 1.2 to 3 times the tail speed.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02026549T ATE371054T1 (en) | 2002-11-28 | 2002-11-28 | METHOD AND DEVICE FOR TRANSFERRING A PAPER WEB |
EP02026549A EP1424441B1 (en) | 2002-11-28 | 2002-11-28 | Process and apparatus for threading a paper web |
DE50210775T DE50210775D1 (en) | 2002-11-28 | 2002-11-28 | Method and device for transferring a paper web |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02026549A EP1424441B1 (en) | 2002-11-28 | 2002-11-28 | Process and apparatus for threading a paper web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1424441A1 EP1424441A1 (en) | 2004-06-02 |
EP1424441B1 true EP1424441B1 (en) | 2007-08-22 |
Family
ID=32241299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02026549A Expired - Fee Related EP1424441B1 (en) | 2002-11-28 | 2002-11-28 | Process and apparatus for threading a paper web |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1424441B1 (en) |
AT (1) | ATE371054T1 (en) |
DE (1) | DE50210775D1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007014118A1 (en) | 2007-03-23 | 2008-09-25 | Voith Patent Gmbh | Device for guiding or transferring a paper, cardboard or other fibrous web |
DE102008002260A1 (en) | 2008-06-06 | 2009-12-10 | Voith Patent Gmbh | Guidance and transfer device for fiber web has at least two edge nozzles on at least one side of merging strip |
DE102008044226A1 (en) | 2008-12-01 | 2010-06-02 | Voith Patent Gmbh | Device for guiding or transferring a fibrous web |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2028443C (en) * | 1990-10-24 | 1996-04-30 | Stanley Hui Mah | Counter-rotating knife paper tail ripper |
DE19962731A1 (en) * | 1999-12-23 | 2001-06-28 | Voith Paper Patent Gmbh | Conveyor for transporting web of flexible material has inlet device upon which is attached separating device, and inlet device is constructed as plate which on entry end has unit for delivery of air jet onto plate |
DE10031644A1 (en) * | 2000-06-29 | 2002-01-17 | Voith Paper Patent Gmbh | Assembly to move the transfer strip of a paper/cardboard web between machine sections has a second guide plate at the entry to the conveyor, parallel to it, to control its movements and prevent flutter |
DE10045141A1 (en) * | 2000-09-13 | 2002-03-21 | Voith Paper Patent Gmbh | Mechanism to transfer the leader strip of a paper/cardboard web, between stations, has a swing guide plate and a blower plate with a cutter each with blowers to direct the leading end of the strip into a cable feed nip |
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2002
- 2002-11-28 AT AT02026549T patent/ATE371054T1/en not_active IP Right Cessation
- 2002-11-28 DE DE50210775T patent/DE50210775D1/en not_active Expired - Fee Related
- 2002-11-28 EP EP02026549A patent/EP1424441B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE371054T1 (en) | 2007-09-15 |
DE50210775D1 (en) | 2007-10-04 |
EP1424441A1 (en) | 2004-06-02 |
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