EP1179632B1 - Process and apparatus for transferring a flexible web - Google Patents

Process and apparatus for transferring a flexible web Download PDF

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Publication number
EP1179632B1
EP1179632B1 EP01116387A EP01116387A EP1179632B1 EP 1179632 B1 EP1179632 B1 EP 1179632B1 EP 01116387 A EP01116387 A EP 01116387A EP 01116387 A EP01116387 A EP 01116387A EP 1179632 B1 EP1179632 B1 EP 1179632B1
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EP
European Patent Office
Prior art keywords
edge
strip
transfer
web
dividing
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
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EP01116387A
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German (de)
French (fr)
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EP1179632A1 (en
Inventor
Rudolf Beisswanger
Wolfgang Drefs
Allan Broom
Sylvain Demers
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication of EP1179632A1 publication Critical patent/EP1179632A1/en
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00Other accessories for paper-making machines
    • D21G9/0063Devices for threading a web tail through a paper-making machine
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0448With subsequent handling [i.e., of product]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0605Cut advances across work surface

Definitions

  • the invention relates to a method for transferring a flexible material web, in particular paper or board web, from a preceding one to at least one subsequent section of the manufacture and / or treatment of the material web serving machine, in particular Paper machine, in which the material web by means of two separating elements in an extending in the direction of web travel edge strip, a adjoining transfer strip as well as to these transfer strips adjoining residual track is parted. It further relates to a device according to the preamble of claim 26.
  • the aim of the invention is a method and an apparatus of the initially to create type mentioned, in which the aforementioned disadvantages are eliminated and in a simple and reliable way possible fast, safe transfer of the web is guaranteed. moreover should the safest possible separation of the transfer strip of the remaining material web and a stable as possible run of Propgeschennten Transfer strip to the machine element at the end of Be ensured transfer path.
  • this object is achieved according to the invention solved that the edge strip laterally deflected away from the transfer strip and streamlined at the same time.
  • the deflection of the edge strip is preferably carried out by means of at least an air jet.
  • the transfer strip is initially at a smaller distance to the relevant Web edge generated and the distance from the web edge then by appropriate method of the separating elements in the transverse direction increased.
  • the maximum distance of the transfer strip to web edge concerned preferably smaller than the distance to the opposite Web edge.
  • the transfer strip by a method of the separating elements in the transverse direction with respect toschreibstets positioned accordingly in a subsequent machine section become.
  • the positioning of the transfer strip can be so in particular take place that this in the relevant subsequent machine section finally detected in its entire width. So can easy on and reliably ensure, for example, that the Transfer strip in its entire width from a respective nip, e.g. Winding gap or the like. Is detected.
  • the transfer strip for its transfer into at least a first machine section first generated at a smaller distance to the respective web edge and the distance from the web edge then to the transfer in at least another machine section by appropriate method of Dividing elements in the transverse direction is increased.
  • a separating element in each case a non-contact Separating element, in particular high pressure water jet or laser beam separating element, or a mechanical cutting element, in particular Knife or circular knife element used.
  • the separation process on the last Drying cylinder takes place.
  • the separation process is preferably carried out in an unsupported train of material web.
  • the material web is expediently at the beginning of the separation process led into the pulper or Committee container.
  • both separating elements recognized within the material web be and within this material web with the Separation is started.
  • edge strip and the rest of the web are preferred until broad travel directed into the pulper or waste container.
  • the transfer strip can have at least one auxiliary transfer device, in particular cable guide, transfer belt, air guide device and / or the like., Are transferred to the subsequent machine section.
  • the edge strip is expediently produced with a width which in a range of about 50 mm to about 300 mm, and preferably in a range of about 50 mm to about 250 mm.
  • the transfer strip is expediently produced with a width that in a range of about 50 mm to about 400 mm, and preferably in a range of about 50 mm to about 200 mm.
  • the transfer strip produced so that the closest to the respective web edge located edge to the edge of the chair or the cable guides a distance which is greater than about 150 mm.
  • the distance can be in particular in a range of about 150 mm to about 1000 mm.
  • the device according to the invention is accordingly characterized that means are provided to the edge strip laterally from To deflect transfer strips away and at the same time to tighten.
  • the inventive method and the inventive device For example, when transferring from the dryer section to a winding apparatus, from the dryer section to a calender and about this to a winding apparatus, from the dryer section to a Coater, size press, and / or the like, or e.g. also at one Transfer starting from aurepartieabêt or a Pre-drying section can be used.
  • the transfer can in particular in the edge area, e.g. on the leader page of the paper machine.
  • the transfer strip is advantageously from one of the strangulation cut more distant area of the web. It is, however advantageous if the distance is not too large, so that in the case of a demolition the accessibility to reject the reject is given.
  • the separating elements By appropriate method of the separating elements, it is possible to Transfer strips in each machine section at an optimal distance lead to the edge of the track. For example, if a transfer of the Drying section via an on-line calender to a winding apparatus, so The transfer strip can initially move over the calender be cut in a smaller distance to the web edge, as the Transfer strips, for example, using transfer ropes, etc. on the calender can be performed. In the next step then the Distance of the transfer strip to the web edge by a corresponding Procedure of the separating element pair are increased to optimal conditions especially in the area of the winding nip on the winding apparatus achieve. This improves the running safety of the transfer strip. It is essential here that the transfer strip at least on his entire width is detected by the winding nip.
  • the invention is especially in such a Operating state applicable, in which in a winding apparatus instead an empty brew a paper already partly wrapped with paper Tambour is provided.
  • This situation is, for example, a paper web break encountered.
  • the transfer strip must be in the appropriate Position are brought, which according to the invention by a corresponding Moving the pair of separators to simple and reliable Way is possible.
  • the respective position depends on the paper format, i.e. the width of the produced paper web. This is back from the type of paper produced and the customer's wishes
  • the device shown in the two FIGS. 1 and 2 serves to transfer a flexible material web, here for example a paper or Cardboard web 10, from a preceding machine section, here for example a drying section 12, at least one subsequent Section, here for example a calender 14 and a following Winding apparatus 16, one of the production and / or treatment of the web serving machine, i. in the present case a paper machine 18th
  • a flexible material web here for example a paper or Cardboard web 10
  • a preceding machine section here for example a drying section 12
  • at least one subsequent Section here for example a calender 14 and a following Winding apparatus 16
  • one of the production and / or treatment of the web serving machine i. in the present case a paper machine 18th
  • the material web 10 by means of two separating elements 20, 22 in a in the web running direction L extending edge strip 24, a adjoining transfer strip 26 and the at this transfer strip 26 adjoining residual track 28 parts.
  • edge strip 24 laterally deflected away from the transfer strip 26. This will be this Edge strips 24 simultaneously tightened, which for example by means of a Air jet can take place. This edge strip 24 is then in a committee container or pulper 30 passed.
  • the transfer strip 26 for the transfer of the material web 10th to an already partially wound drum 38 '(see Fig. 2) first at a smaller distance A1 to the respective web edge 32 or in one smaller distance B 1 to the edge of the stool 40 generated (see Fig. 1) and the distance from the edge of the web 32 or from the edge of the chair 40 thereafter by appropriate method of the separating elements 20, 22 in the transverse direction for example, increased to a value A2 or B2. It is also the greater distance A2 of the transfer strip 26 to the web edge 32 still smaller than the distance to the opposite web edge 34th
  • the transfer strip 26 can thus by a method of separating elements 20, 22 in the transverse direction, for example, with respect to between the Tambour 38 and a carrier drum 39 formed winding nip 42 of the Winding apparatus 16 are positioned in the desired manner.
  • the transfer strip 26 can be positioned so that this in the relevant subsequent machine section, here in the Winding apparatus 16, is finally detected in its entire width.
  • separating element 20, 22 can each, for example, a contactless working separating element, in particular water jet or laser beam separating element, or a mechanical cutting element, in particular knife or circular knife element.
  • a contactless working separating element in particular water jet or laser beam separating element
  • a mechanical cutting element in particular knife or circular knife element.
  • the separation process takes place expediently on the last drying cylinder 44 of the dryer section 12.
  • the separation process is carried out expediently in one unsupported train of material web 10th
  • the material web 10 is in the pulper 30th guided. It is by a (not shown) scraper from the surface scraped off the drying cylinder 44. To be wide also the edge strip 24 and the residual web 28 passed into the pulper 30.
  • the edge strip 24 can be produced, for example, with a width, in a range of about 50 mm to about 300 mm, and preferably in a range of about 50 mm to about 250 mm.
  • the transfer strip For example, 26 is generated with a width that is in one range from about 50 mm to about 400 mm, and preferably in one area from about 50 mm to about 200 mm.
  • the transfer strip 26 is expediently generated so that its edge 36 closest to the edge of the web 32 to the edge of the chair 40 has a distance B1, B2 that is in a range of about 150 mm to about 1000 mm.
  • the two separating elements 20, 22 are controlled by an electronic control 48 controlled.

Landscapes

  • Paper (AREA)
  • Advancing Webs (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

An apparatus is available for transferring a flexible material web from an upstream section to at least one downstream section of a machine having a web running direction. The machine is configured for at least one of manufacturing and treating the material web. The apparatus includes two separation elements configured for splitting and thereby separating the material web into an edge strip, an adjoining transfer strip and a remaining web adjoining the transfer strip, the edge strip extending in the web running direction. The apparatus further includes at least one deflection device configured for deflecting the edge strip away from the transfer strip and simultaneously tautening the edge strip upon deflection thereof.

Description

Die Erfindung betrifft ein Verfahren zum Überführen einer flexiblen Materialbahn, insbesondere Papier- oder Kartonbahn, von einer vorangehenden zu wenigstens einer nachfolgenden Sektion einer der Herstellung und/oder Behandlung der Materialbahn dienenden Maschine, insbesondere Papiermaschine, bei dem die Materialbahn mittels zweier Trennelemente in einen sich in Bahnlaufrichtung erstreckenden Randstreifen, einen daran angrenzenden Überführstreifen sowie die an diesen Überführstreifen angrenzende Restbahn zerteilt wird. Sie betrifft ferner eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 26.The invention relates to a method for transferring a flexible material web, in particular paper or board web, from a preceding one to at least one subsequent section of the manufacture and / or treatment of the material web serving machine, in particular Paper machine, in which the material web by means of two separating elements in an extending in the direction of web travel edge strip, a adjoining transfer strip as well as to these transfer strips adjoining residual track is parted. It further relates to a device according to the preamble of claim 26.

Bei einem aus der WO 98/33974 bekannten Verfahren der eingangs genannten Art wird zur Überführung der Papier- oder Kartonbahn etc. vom Ende der Trockenpartie einer Papiermaschine zu nachfolgenden Maschinenabschnitten oder -sektionen, wie z.B. Kalander, Wickelapparat, etc., am Ende der Trockenpartie ein schmaler Streifen (Überführstreifen) aus der Papierbahn geschnitten. Während die restlichen, benachbarten Abschnitte der Bahn geradewegs in einen Pulper oder Ausschußauflöser geführt werden, wird der Streifen durch Hilfsmittel wie Seilführungen, Überführbändern, etc. in die nachfolgenden Maschinensektionen überführt. In one known from WO 98/33974 process of the aforementioned Art is used to transfer the paper or board web, etc. from End of the dryer section of a paper machine to subsequent machine sections or sections, such as e.g. Calender, wrapping apparatus, etc., at the end of the dryer section a narrow strip (transfer strip) cut the paper web. While the remaining, neighboring sections the web led straight into a pulper or rejects dissolver be the strip by means such as cable guides, Transfer belts, etc. transferred to the following machine sections.

Hierbei ergibt sich nun aber ein relativ instabiler Lauf des Streifens durch die nachfolgenden Maschinensektionen, was zu zeitraubenden und teuren Bahnabrissen führen kann.However, this results in a relatively unstable run of the strip the subsequent machine sections, resulting in time-consuming and expensive Can lead web breaks.

Wird der Überführstreifen aus dem Randstreifen gebildet, so besteht die Gefahr, daß dessen Lauf durch die Luftbewegungen im Stuhlungsbereich, z.B. in der Maschinensektion eines Wickelapparates, gestört wird.If the transfer strip formed from the edge strip, so there is the Danger that its course by the air movements in the stool area, e.g. in the machine section of a winding apparatus, is disturbed.

Ziel der Erfindung ist es, ein Verfahren sowie eine Vorrichtung der eingangs genannten Art zu schaffen, bei denen die zuvorgenannten Nachteile beseitigt sind und auf einfache und zuverlässige Weise ein möglichst schnelles, sicheres Überführen der Materialbahn gewährleistet ist. Zudem soll ein möglichst sicheres Heraustrennen des Überführstreifens von der restlichen Materialbahn sowie ein möglichst stabiler Lauf des herausgetrennten Überführstreifens bis zum Maschinenelement am Ende der Überführstrecke sichergestellt sein.The aim of the invention is a method and an apparatus of the initially to create type mentioned, in which the aforementioned disadvantages are eliminated and in a simple and reliable way possible fast, safe transfer of the web is guaranteed. moreover should the safest possible separation of the transfer strip of the remaining material web and a stable as possible run of herausgeschennten Transfer strip to the machine element at the end of Be ensured transfer path.

Hinsichtlich des Verfahrens wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß der Randstreifen seitlich vom Überführstreifen weg ausgelenkt und gleichzeitig gestrafft wird.With regard to the method, this object is achieved according to the invention solved that the edge strip laterally deflected away from the transfer strip and streamlined at the same time.

Aufgrund dieser Ausbildung ist auf einfache und zuverlässige Weise ein schnelles und sicheres Überführen der Materialbahn sichergestellt. Dabei ist über die gesamte Überführstrecke hinweg ein äußerst stabiler Lauf des Überführstreifens gewährleistet. Es wird auch verhindert, daß während des Überführvorgangs der Randstreifen mit dem Überführstreifen mitläuft, was bisher zu Abrissen geführt hat. Der Randstreifen kann insbesondere in einem Pulper oder Ausschußbehälter geleitet werden. Because of this training is in a simple and reliable way ensured fast and safe transfer of the web. there is over the entire transfer path away a very stable run of the Transfer strip guaranteed. It also prevents during the transfer process of the edge strip runs with the transfer strip, which has led to breaks so far. The edge strip can in particular be passed in a pulper or reject container.

Die Auslenkung des Randstreifens erfolgt vorzugsweise mittels wenigstens eines Luftstrahls.The deflection of the edge strip is preferably carried out by means of at least an air jet.

Gemäß einer zweckmäßigen Ausgestaltung des erfindungsgemäßen Verfahrens wird zunächst das den betreffenden Bahnrand am nächsten gelegene Trennelement aktiviert, um den Randstreifen zu erzeugen, und anschließend bei bereits gestrafftem und ausgelenktem Randstreifen das andere Trennelement aktiviert, um den Überführstreifen zu erzeugen.According to an expedient embodiment of the method according to the invention First of all, it will be the one closest to the respective web edge Separator activated to create the edge strip, and then with already streamlined and deflected edge strip the other Separator activated to create the transfer strip.

Nach einer Überführung des Überführstreifens zu wenigstens einer nachfolgenden Maschinensektion kann das vom betreffenden Bahnrand weiter entfernte Trennelement zum gegenüberliegenden Bahnrand verfahren werden, um die Restbahn abzutrennen. Entsprechend kann das dem betreffenden Bahnrand am nächsten gelegene Trennelement zum betreffenden Bahnrand verfahren werden, um den Randstreifen zu trennen.After transfer of the transfer strip to at least one subsequent Machine section can continue from the relevant web edge moved away separating element to the opposite edge of the web to separate the residual track. Accordingly, this can be the subject Bahnrand nearest separating element to the relevant Bahnrand are moved to separate the edge strip.

Bei einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens wird der Überführstreifen zunächst in einem kleineren Abstand zum betreffenden Bahnrand erzeugt und der Abstand vom Bahnrand anschließend durch entsprechendes Verfahren der Trennelemente in Querrichtung vergrößert. Dabei ist der maximale Abstand des Überführstreifens zum betreffenden Bahnrand vorzugsweise kleiner als dessen Abstand zum gegenüberliegenden Bahnrand. Entsprechend kann der Überführstreifen durch ein Verfahren der Trennelemente in Querrichtung bezüglich wenigstets einer nachfolgenden Maschinensektion entsprechend positioniert werden. Die Positionierung des Überführstreifens kann insbesondere so erfolgen, daß dieser in der betreffenden nachfolgenden Maschinensektion schließlich in seiner gesamten Breite erfaßt wird. So kann auf einfache und zuverlässige Weise beispielsweise sichergestellt werden, daß der Überführstreifen in seiner gesamten Breite von einem jeweiligen Walzenspalt, z.B. Wickelspalt oder dergl. erfaßt wird.In a preferred embodiment of the method according to the invention The transfer strip is initially at a smaller distance to the relevant Web edge generated and the distance from the web edge then by appropriate method of the separating elements in the transverse direction increased. Here, the maximum distance of the transfer strip to web edge concerned preferably smaller than the distance to the opposite Web edge. Accordingly, the transfer strip by a method of the separating elements in the transverse direction with respect to wenigstets positioned accordingly in a subsequent machine section become. The positioning of the transfer strip can be so in particular take place that this in the relevant subsequent machine section finally detected in its entire width. So can easy on and reliably ensure, for example, that the Transfer strip in its entire width from a respective nip, e.g. Winding gap or the like. Is detected.

Demnach besteht insbesondere die Möglichkeit, daß der Überführstreifen zu dessen Überführung in wenigstens eine erste Maschinensektion zunächst in einem kleineren Abstand zum betreffenden Bahnrand erzeugt und der Abstand vom Bahnrand anschließend zur Überführung in wenigstens eine weitere Maschinensektion durch entsprechendes Verfahren der Trennelemente in Querrichtung vergrößert wird.Accordingly, there is in particular the possibility that the transfer strip for its transfer into at least a first machine section first generated at a smaller distance to the respective web edge and the distance from the web edge then to the transfer in at least another machine section by appropriate method of Dividing elements in the transverse direction is increased.

Durch ein entsprechendes Verfahren der Trennelemente in Querrichtung kann auch die jeweils gewünschte Breite des Überführstreifens eingestellt werden.By a corresponding method of the separating elements in the transverse direction can also set the particular desired width of the transfer strip become.

Zweckmäßigerweise wird als Trennelement jeweils ein berührungslos arbeitendes Trennelement, insbesondere Hochdruckwasserstrahl- oder Laserstrahl-Trennelement, oder ein mechanisches Schneidelement, insbesondere Messer- oder Kreismesserelement, verwendet.Appropriately, as a separating element in each case a non-contact Separating element, in particular high pressure water jet or laser beam separating element, or a mechanical cutting element, in particular Knife or circular knife element used.

Bei der Verwendung berührungslos arbeitender Trennelemente in einer Papiermaschine ist es von Vorteil, wenn der Trennvorgang auf dem letzten Trockenzylinder erfolgt. Werden als Trennelemente mechanisch arbeitende Schneidelemente verwendet, so erfolgt der Trennvorgang vorzugsweise in einem nicht gestützten Zug der Materialbahn. When using non-contact separating elements in one Paper machine, it is advantageous if the separation process on the last Drying cylinder takes place. Be used as separating elements mechanically working Used cutting elements, the separation process is preferably carried out in an unsupported train of material web.

Die Materialbahn wird zu Beginn des Trennvorgangs zweckmäßigerweise in den Pulper oder Ausschußbehälter geführt.The material web is expediently at the beginning of the separation process led into the pulper or Committee container.

Bei einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens ist vorgesehen, daß beide Trennelemente innerhalb der Materialbahn angesetzt werden und entsprechend innerhalb dieser Materialbahn mit der Trennung begonnen wird. Alternativ dazu ist es aber auch möglich, zumindest ein Trennelement bereits außerhalb der Materialbahn zu aktivieren.In a preferred embodiment of the method according to the invention It is envisaged that both separating elements recognized within the material web be and within this material web with the Separation is started. Alternatively, it is also possible, at least to activate a separating element already outside the material web.

Der Randstreifen und die Restbahn werden bis zum Breitfahren vorzugsweise in den Pulper oder Ausschußbehälter geleitet.The edge strip and the rest of the web are preferred until broad travel directed into the pulper or waste container.

Der Überführstreifen kann über wenigstens eine Hilfsüberführeinrichtung, insbesondere Seilführung, Überführband, Luftführungseinrichtung und/oder dergl., zu der nachfolgenden Maschinensektion überführt werden.The transfer strip can have at least one auxiliary transfer device, in particular cable guide, transfer belt, air guide device and / or the like., Are transferred to the subsequent machine section.

Der Randstreifen wird zweckmäßigerweise mit einer Breite erzeugt, die in einem Bereich von etwa 50 mm bis etwa 300 mm, und vorzugsweise in einem Bereich von etwa 50 mm bis etwa 250 mm liegt.The edge strip is expediently produced with a width which in a range of about 50 mm to about 300 mm, and preferably in a range of about 50 mm to about 250 mm.

Der Überführstreifen wird zweckmäßigerweise mit einer Breite erzeugt, die in einem Bereich von etwa 50 mm bis etwa 400 mm und vorzugsweise in einem Bereich von etwa 50 mm bis etwa 200 mm liegt.The transfer strip is expediently produced with a width that in a range of about 50 mm to about 400 mm, and preferably in a range of about 50 mm to about 200 mm.

Gemäß einer bevorzugten praktischen Ausgestaltung wird der Überführstreifen so erzeugt, daß dessen dem betreffenden Bahnrand am nächsten gelegene Kante zum Stuhlungsrand bzw. zu den Seilführungen einen Abstand aufweist, der größer als etwa 150 mm ist. Dabei kann der Abstand insbesondere in einem Bereich von etwa 150 mm bis etwa 1000 mm liegen.According to a preferred practical embodiment of the transfer strip produced so that the closest to the respective web edge located edge to the edge of the chair or the cable guides a distance which is greater than about 150 mm. The distance can be in particular in a range of about 150 mm to about 1000 mm.

Die erfindungsgemäße Vorrichtung ist entsprechend dadurch gekennzeichnet, daß Mittel vorgesehen sind, um den Randstreifen seitlich vom Überführstreifen weg auszulenken und gleichzeitig zu straffen.The device according to the invention is accordingly characterized that means are provided to the edge strip laterally from To deflect transfer strips away and at the same time to tighten.

Bevorzugte Ausführungsformen der erfindungsgemäßen Vorrichtung sind in den Unteransprüchen angegeben.Preferred embodiments of the device according to the invention are specified in the dependent claims.

Das erfindungsgemäße Verfahren sowie die erfindungsgemäße Vorrichtung können beispielsweise bei einer Überführung von der Trockenpartie zu einem Wickelapparat, von der Trockenpartie zu einem Kalander und über diesen zu einem Wickelapparat, von der Trockenpartie zu einem Streichaggregat, Leimpresse, und/oder dergl., oder z.B. auch bei einer Überführung ausgehend von einem Trockenpartieabschnitt bzw. einer Vortrockenpartie eingesetzt werden. Die Überführung kann insbesondere im Randbereich, z.B. auf der Führerseite der Papiermaschine, erfolgen. Der Überführstreifen wird vorteilhafterweise aus einem von der Stuhlung weiter entfernteren Bereich der Bahn geschnitten. Dabei ist es allerdings von Vorteil, wenn der Abstand nicht zu groß ist, so daß im Fall eines Abrisses die Zugänglichkeit zur Ausschußbeseitigung gegeben ist.The inventive method and the inventive device For example, when transferring from the dryer section to a winding apparatus, from the dryer section to a calender and about this to a winding apparatus, from the dryer section to a Coater, size press, and / or the like, or e.g. also at one Transfer starting from a Trockenpartieabschnitt or a Pre-drying section can be used. The transfer can in particular in the edge area, e.g. on the leader page of the paper machine. The transfer strip is advantageously from one of the strangulation cut more distant area of the web. It is, however advantageous if the distance is not too large, so that in the case of a demolition the accessibility to reject the reject is given.

Durch entsprechendes Verfahren der Trennelemente ist es möglich, den Überführstreifen in jeder Maschinensektion in einem optimalen Abstand zum Bahnrand zu führen. Erfolgt beispielsweise eine Überführung von der Trockenpartie über einen Online-Kalander zu einem Wickelapparat, so kann der Überführstreifen beim Überführen über den Kalander zunächst in einem kleineren Abstand zum Bahnrand ausgeschnitten werden, da der Überführstreifen beispielsweise mit Hilfe von Überführseilen usw. über den Kalander geführt werden kann. Im nächsten Schritt kann dann der Abstand des Überführstreifens zum Bahnrand durch ein entsprechendes Verfahren des Trennelementpaares vergrößert werden, um optimale Verhältnisse insbesondere im Bereich des Wickelspaltes am Wickelapparat zu erzielen. Dadurch wird die Laufsicherheit des Überführstreifens verbessert. Wesentlich ist hierbei, daß der Überführstreifen zumindest auf seiner gesamten Breite vom Wickelspalt erfaßt wird.By appropriate method of the separating elements, it is possible to Transfer strips in each machine section at an optimal distance lead to the edge of the track. For example, if a transfer of the Drying section via an on-line calender to a winding apparatus, so The transfer strip can initially move over the calender be cut in a smaller distance to the web edge, as the Transfer strips, for example, using transfer ropes, etc. on the calender can be performed. In the next step then the Distance of the transfer strip to the web edge by a corresponding Procedure of the separating element pair are increased to optimal conditions especially in the area of the winding nip on the winding apparatus achieve. This improves the running safety of the transfer strip. It is essential here that the transfer strip at least on his entire width is detected by the winding nip.

Besonders vorteilhaft ist die Erfindung insbesondere auch bei einem solchen Betriebszustand anwendbar, bei dem in einem Wickelapparat anstelle eines Leertambours ein teilweise bereits mit Papier bewickelter Tambour vorgesehen ist. Diese Situation ist beispielsweise bei einem Papierbahnabriss anzutreffen. Um sicherzustellen, daß für eine sichere Überführung die volle Breite des Überführstreifens vom Wickelspalt erfaßt wird, der von der Tragtrommel und den Papierlagen des teilweise bewikkelten Tambours gebildet wird, muß der Überführstreifen in die entsprechende Position gebracht werden, was erfindungsgemäß durch ein entsprechendes Verfahren des Trennelementpaares auf einfache und zuverlässige Weise möglich ist. Die jeweilige Position ist abhängig vom Papierformat, d.h. der Breite der produzierten Papierbahn. Diese ist wieder von der produzierten Papiersorte und den jeweiligen Kundenwünschen abhängig Particularly advantageous, the invention is especially in such a Operating state applicable, in which in a winding apparatus instead an empty brew a paper already partly wrapped with paper Tambour is provided. This situation is, for example, a paper web break encountered. To ensure that for a safe Transfer the full width of the transfer strip detected by the winding nip is that of the carrier drum and the paper layers of the partially verwikelten Tambours is formed, the transfer strip must be in the appropriate Position are brought, which according to the invention by a corresponding Moving the pair of separators to simple and reliable Way is possible. The respective position depends on the paper format, i.e. the width of the produced paper web. This is back from the type of paper produced and the customer's wishes

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung näher erläutert; in dieser zeigen:

Fig. 1
eine rein schematische Teildarstellung einer Vorrichtung zum Überführen einer Papier- oder Kartonbahn vom letzten Trokkenzylinder zu einem Kalander und über diesen zu einem Wickelapparat, wobei der Überführstreifen bis zum Wickelapparat geführt ist und ein Tambourwechsel vorliegt, d.h. die Bahn auf einen Leertambour übergeben wird, und
Fig. 2
eine mit Fig. 1 vergleichbare Darstellung, wobei jedoch ein Bahnabriß vorliegt und die Papier- oder Kartonbahn entsprechend auf einen bereits teilweise bewickelten Tambour übergeben wird.
The invention is explained in more detail below with reference to embodiments with reference to the drawing; in this show:
Fig. 1
a purely schematic partial view of a device for transferring a paper or board web from the last drying cylinder to a calender and this to a winding apparatus, wherein the transfer strip is guided to the winding apparatus and a Tambourwechsel is present, ie the web is transferred to a blank drum, and
Fig. 2
a representation comparable to Fig. 1, but with a web break is present and the paper or board web is transferred accordingly to an already partially wound reel.

Die in den beiden Fig. 1 und 2 dargestellte Vorrichtung dient dem Überführen einer flexiblen Materialbahn, hier beispielsweise einer Papier- oder Kartonbahn 10, von einer vorangehenden Maschinensektion, hier beispielsweise einer Trockenpartie 12, zu wenigstens einer nachfolgenden Sektion, hier beispielsweise einen Kalander 14 und einen darauffolgenden Wickelapparat 16, einer der Herstellung und/oder Behandlung der Materialbahn dienenden Maschine, d.h. im vorliegenden Fall einer Papiermaschine 18.The device shown in the two FIGS. 1 and 2 serves to transfer a flexible material web, here for example a paper or Cardboard web 10, from a preceding machine section, here for example a drying section 12, at least one subsequent Section, here for example a calender 14 and a following Winding apparatus 16, one of the production and / or treatment of the web serving machine, i. in the present case a paper machine 18th

Dabei wird die Materialbahn 10 mittels zweier Trennelemente 20, 22 in einen sich in Bahnlaufrichtung L erstreckenden Randstreifen 24, einen daran angrenzenden Überführstreifen 26 sowie die an diesen Überführstreifen 26 angrenzende Restbahn 28 zerteilt. In this case, the material web 10 by means of two separating elements 20, 22 in a in the web running direction L extending edge strip 24, a adjoining transfer strip 26 and the at this transfer strip 26 adjoining residual track 28 parts.

Wie den beiden Fig. 1 und 2 zu entnehmen ist, wird dabei der Randstreifen 24 seitlich vom Überführstreifen 26 weg ausgelenkt. Dabei wird dieser Randstreifen 24 gleichzeitig gestrafft, was beispielsweise mittels eines Luftstrahls erfolgen kann. Dieser Randstreifen 24 wird dann in einen Ausschußbehälter oder Pulper 30 geleitet.As the two Figs. 1 and 2 can be seen, is the edge strip 24 laterally deflected away from the transfer strip 26. This will be this Edge strips 24 simultaneously tightened, which for example by means of a Air jet can take place. This edge strip 24 is then in a committee container or pulper 30 passed.

Vorzugsweise wird zunächst das den betreffenden Bahnrand 32 am nächsten gelegene Trennelement 20 aktiviert, um den Randstreifen 24 zu erzeugen, und anschließend bei bereits gestrafftem und ausgelenktem Randstreifen 30 das andere Trennelement 22 aktiviert, um den Überführstreifen 26 zu erzeugen.Preferably, first, the respective web edge 32 closest activated separating element 20 to produce the edge strip 24, and then with already streamlined and deflected Edge strip 30, the other separating element 22 is activated to the transfer strip 26 to produce.

Nach einer Überführung des Überführstreifens 26 zu wenigstens einer nachfolgenden Maschinensektion 14, 16 wird das vom betreffenden Bahnrand 32 weiter entfernte Trennelement 22 zum gegenüberliegenden Bahnrand 34 verfahren, um die Restbahn 28 abzutrennen.After transfer of the transfer strip 26 to at least one Subsequent machine section 14, 16 is that of the respective web edge 32 farther separating element 22 to the opposite edge of the web 34 process to separate the residual web 28.

Nach einer Überführung des Überführstreifens 26 zu wenigstens einer nachfolgenden Maschinensektion 14, 16 wird das dem betreffenden Bahnrand 32 am nächsten gelegene Trennelement 20 zum betreffenden Bahnrand 32 verfahren, um den Randstreifen 24 abzutrennen.After transfer of the transfer strip 26 to at least one Subsequent machine section 14, 16 becomes the web edge in question 32 closest separating element 20 to the respective web edge 32 method to separate the edge strip 24.

Zumindest zu Beginn des Überführvorgangs wird der Überführstreifen 26 so erzeugt, daß dessen den betreffenden Bahnrand 32 am nächsten gelegene Kante 36 in einem kleineren Abstand A1 zum betreffenden Bahnrand 32 und entsprechend in einem kleineren Abstand B1 zum Stuhlungsrand 40 aufweist. At least at the beginning of the transfer operation of the transfer strip 26th generated so that the respective web edge 32 nearest Edge 36 at a smaller distance A1 to the respective web edge 32 and correspondingly at a smaller distance B1 to the edge of the chair 40 has.

Beim in der Fig. 1 gezeigten Ausführungsbeispiel, bei dem die Materialbahn 10 schließlich auf einen Leertambour 38 des Wickelapparats 16 übergeben wird, bleibt es vorzugsweise bei diesem kleineren Abstand des Überführstreifens 26 zum Bahnrand 32 bzw. dem Stuhlungsrand 40.In the embodiment shown in FIG. 1, in which the material web 10 finally on a spool 38 of the winding apparatus 16th is transferred, it preferably remains at this smaller distance of Transfer strip 26 to the web edge 32 and the edge of the chair 40th

Dagegen wird der Überführstreifen 26 zur Übergabe der Materialbahn 10 auf einen bereits teilweise bewickeltem Tambour 38' (vgl. Fig. 2) zunächst in einem kleineren Abstand A1 zum betreffenden Bahnrand 32 bzw. in einem kleineren Abstand B 1 zum Stuhlungsrand 40 erzeugt (vgl. Fig. 1) und der Abstand vom Bahnrand 32 bzw. vom Stuhlungsrand 40 anschließend durch entsprechendes Verfahren der Trennelemente 20, 22 in Querrichtung beispielsweise auf einen Wert A2 bzw. B2 vergrößert. Dabei ist auch der größere Abstand A2 des Überführstreifens 26 zum Bahnrand 32 noch kleiner als dessen Abstand zum gegenüberliegenden Bahnrand 34.In contrast, the transfer strip 26 for the transfer of the material web 10th to an already partially wound drum 38 '(see Fig. 2) first at a smaller distance A1 to the respective web edge 32 or in one smaller distance B 1 to the edge of the stool 40 generated (see Fig. 1) and the distance from the edge of the web 32 or from the edge of the chair 40 thereafter by appropriate method of the separating elements 20, 22 in the transverse direction for example, increased to a value A2 or B2. It is also the greater distance A2 of the transfer strip 26 to the web edge 32 still smaller than the distance to the opposite web edge 34th

Der Überführstreifen 26 kann somit durch ein Verfahren der Trennelemente 20, 22 in Querrichtung beispielsweise bezüglich des zwischen dem Tambour 38 und einer Tragtrommel 39 gebildeten Wickelspaltes 42 des Wickelapparats 16 in der gewünschten Weise positioniert werden. Dabei kann der Überführstreifen 26 insbesondere so positioniert werden, daß dieser in der betreffenden nachfolgenden Maschinensektion, hier in dem Wickelapparat 16, schließlich in seiner gesamten Breite erfaßt wird.The transfer strip 26 can thus by a method of separating elements 20, 22 in the transverse direction, for example, with respect to between the Tambour 38 and a carrier drum 39 formed winding nip 42 of the Winding apparatus 16 are positioned in the desired manner. there In particular, the transfer strip 26 can be positioned so that this in the relevant subsequent machine section, here in the Winding apparatus 16, is finally detected in its entire width.

Als Trennelement 20, 22 kann jeweils beispielsweise ein berührungslos arbeitendes Trennelement, insbesondere Wasserstrahl- oder Laserstrahl-Trennelement, oder ein mechanisches Schneidelement, insbesondere Messer- oder Kreismesserelement, verwendet werden. Werden berührungslos arbeitende Trennelemente 20, 22 verwendet, so erfolgt der Trennvorgang zweckmäßigerweise auf dem letzten Trockenzylinder 44 der Trockenpartie 12. Werden als Trennelemente 20, 22 mechanisch arbeitende Schneidelemente verwendet, so erfolgt der Trennvorgang zweckmäßigerweise in einem nicht gestützten Zug der Materialbahn 10.As a separating element 20, 22 can each, for example, a contactless working separating element, in particular water jet or laser beam separating element, or a mechanical cutting element, in particular knife or circular knife element. Become contactless working separating elements 20, 22 used, the separation process takes place expediently on the last drying cylinder 44 of the dryer section 12. Are used as separating elements 20, 22 mechanically operating cutting elements used, the separation process is carried out expediently in one unsupported train of material web 10th

Vor Beginn des Trennvorgangs wird die Materialbahn 10 in den Pulper 30 geführt. Sie wird durch einen (nicht dargestellten) Schaber von der Oberfläche des Trockenzylinders 44 abgeschabt. Bis zum Breitfahren werden auch der Randstreifen 24 und die Restbahn 28 in den Pulper 30 geleitet.Before the separation process, the material web 10 is in the pulper 30th guided. It is by a (not shown) scraper from the surface scraped off the drying cylinder 44. To be wide also the edge strip 24 and the residual web 28 passed into the pulper 30.

Der Randstreifen 24 kann beispielsweise mit einer Breite erzeugt werden, die in einem Bereich von etwa 50 mm bis etwa 300 mm, und vorzugsweise in einem Bereich von etwa 50 mm bis etwa 250 mm liegt. Der Überführstreifen 26 wird beispielsweise mit einer Breite erzeugt, die in einem Bereich von etwa 50 mm bis etwa 400 mm, und vorzugsweise in einem Bereich von etwa 50 mm bis etwa 200 mm liegt.The edge strip 24 can be produced, for example, with a width, in a range of about 50 mm to about 300 mm, and preferably in a range of about 50 mm to about 250 mm. The transfer strip For example, 26 is generated with a width that is in one range from about 50 mm to about 400 mm, and preferably in one area from about 50 mm to about 200 mm.

Dabei wird der Überführstreifen 26 zweckmäßigerweise so erzeugt, daß dessen dem Bahnrand 32 am nächsten gelegene Kante 36 zum Stuhlungsrand 40 einen Abstand B1, B2 aufweist, der in einem Bereich von etwa 150 mm bis etwa 1000 mm liegt.In this case, the transfer strip 26 is expediently generated so that its edge 36 closest to the edge of the web 32 to the edge of the chair 40 has a distance B1, B2 that is in a range of about 150 mm to about 1000 mm.

Bei einer beispielsweise direkten Überführung der Materialbahn 10 von der Trockenpartie 12 zum Wickel- oder Rollapparat 16 können beispielsweise die folgenden Verfahrensschritte vorgesehen sein:

  • Positionieren der Trennelemente 20, 22 so, daß die gesamte Breite des Überführstreifens 26 vom Nip 42 am Ende der betreffenden nachfolgenden Maschinensektion 16 erfaßt wird,
  • Aktivieren des dem Bahnrand 32 am nächsten gelegenen Trennelements 20 zum Schneiden eines Randstreifens 24,
  • Straffung des Randstreifens 24,
  • Ablenken des Randstreifens 24 weg von der abgetrennten Bahn nach außen,
  • Aktivieren des zweiten Trennelements 22 zum Schneiden eines Überführstreifens 26,
  • Überführen des Überführstreifens 26 in Überführhilfseinrichtungen und von dort zur nächsten Maschinensektion,
  • Bewegen des zweiten Trennelements 22 zum gegenüberliegenden Rand 34 der Materialbahn 10 und Durchtrennen der Restbahn 28,
  • Verfahren des ersten Trennelements 20 zum Bahnrand 32 und Durchtrennen des Randstreifens 24,
  • Deaktivieren der Schneidfunktion der beiden Trennelemente 20, 22,
  • Verfahren der beiden Trennelemente 20, 22 in die jeweilige Ausgangsposition.
In the case of, for example, direct transfer of the material web 10 from the drying section 12 to the winding or reeling apparatus 16, the following method steps may be provided, for example:
  • Positioning the separating elements 20, 22 so that the entire width of the transfer strip 26 is detected by the nip 42 at the end of the respective subsequent machine section 16,
  • Activating the web edge 32 closest separating element 20 for cutting a marginal strip 24,
  • Tightening of the edge strip 24,
  • Deflecting the edge strip 24 away from the severed web to the outside,
  • Activating the second separating element 22 to cut a transfer strip 26,
  • Transferring the transfer strip 26 in transfer facilities and from there to the next machine section,
  • Moving the second separating element 22 to the opposite edge 34 of the material web 10 and severing the residual web 28,
  • Moving the first separating element 20 to the web edge 32 and severing the marginal strip 24;
  • Deactivating the cutting function of the two separating elements 20, 22,
  • Method of the two separating elements 20, 22 in the respective starting position.

Insbesondere bei einem Überführvorgang der Materialbahn 10 von der Trockenpartie 12 über einen Online-Kalander 14 (vgl. die beiden Fig. 1 und 2) zum Wickel- oder Rollapparat 16 sind beispielsweise die folgenden Verfahrensschritte denkbar:

  • die beiden Trennelemente 20, 22 befinden sich in der jeweiligen Trennposition,
  • Aktivieren des dem Bahnrand 32 am nächsten gelegenen ersten Trennelements 20 zum Schneiden eines Randstreifens 24,
  • Straffung des Randstreifens 24,
  • Ablenken des Randstreifens 24 weg von der abgetrennten Bahn nach außen,
  • Aktivieren des zweiten Trennelements 22 zum Schneiden eines Überführstreifens 26,
  • Überführen des Überführstreifens 26 in Überführhilfseinrichtungen und von dort zum bzw. über die nächste Maschinensektion 14 bis zu einem Walzenspalt 46 ("pull stack") zum Klemmen und Straffen des Überführstreifens 26, wobei dieser "pull stack" hier zwischen zwei Maschinensektionen 14, 16 angeordnet ist,
  • Versetzen des Überführstreifens 26 an eine andere, auf die zweite Maschinensektion 16 abgestimmte Breitenposition durch Verfahren der beiden Trennelemente 20, 22 in die neue Breitenposition (vgl. insbesondere Fig. 2),
  • Optimieren der Breite des Überführstreifens 26 durch entsprechendes Verändern des Abstandes zwischen den beiden Trennelementen 20, 22,
  • Überführen des Überführstreifens 26 in Überführhilfseinrichtungen und von dort zur übernächsten Maschinensektion,
  • Verfahren des zweiten Trennelements 22 zum gegenüberliegenden Bahnrand 28 und Durchtrennen der Restbahn 28,
  • Verfahren des ersten Trennelements 20 zum benachbarten Bahnrand 32 und Durchtrennen des Randstreifens 24,
  • Deaktivieren der Schneidfunktion der beiden Trennelemente 20, 22,
  • Verfahren der beiden Trennelemente in die jeweilige Ausgangsposition (z.B. Trennposition).
In particular, during a transfer operation of the material web 10 from the dryer section 12 via an on-line calender 14 (cf the two FIGS. 1 and 2) to the winding or reeling apparatus 16, the following method steps are conceivable, for example:
  • the two separating elements 20, 22 are in the respective separating position,
  • Activating the first separating element 20 closest to the web edge 32 for cutting a marginal strip 24,
  • Tightening of the edge strip 24,
  • Deflecting the edge strip 24 away from the severed web to the outside,
  • Activating the second separating element 22 to cut a transfer strip 26,
  • Transferring the transfer strip 26 in Überführhilfseinrichtungen and from there to or via the next machine section 14 to a nip 46 ("pull stack") for clamping and tightening of the transfer strip 26, said "pull stack" here between two machine sections 14, 16 arranged is
  • Displacing the transfer strip 26 to another width position matched to the second machine section 16 by moving the two separating elements 20, 22 into the new width position (see in particular FIG.
  • Optimizing the width of the transfer strip 26 by correspondingly changing the distance between the two separating elements 20, 22,
  • Transferring the transfer strip 26 in transfer facilities and from there to the next but one machine section,
  • Method of the second separating element 22 to the opposite web edge 28 and severing the residual web 28,
  • Moving the first separating element 20 to the adjacent web edge 32 and severing the marginal strip 24;
  • Deactivating the cutting function of the two separating elements 20, 22,
  • Method of the two separating elements in the respective starting position (eg separation position).

Die beiden Trennelemente 20, 22 werden durch eine elektronische Steuerung 48 angesteuert.The two separating elements 20, 22 are controlled by an electronic control 48 controlled.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Materialbahn, Papier- oder KartonbahnMaterial web, paper or board web
1212
vorangehende Maschinensektion, Trockenpartieprevious machine section, dryer section
1414
nachfolgende Maschinensektion, Kalander subsequent machine section, calender
1616
nachfolgende Maschinensektion, Wickelapparatsubsequent machine section, winding apparatus
1818
Papiermaschinepaper machine
2020
erstes Trennelementfirst separating element
2222
zweites Trennelementsecond separating element
2424
Randstreifenedge strips
2626
ÜberführstreifenTransfer strip
2828
Restbahnresidual web
3030
Pulperpulper
3232
Bahnrandweb edge
3434
gegenüberliegender Bahnrandopposite edge of the track
3636
Kanteedge
3838
Leertambourempty spool
38'38 '
teilweise bewickelter Tambourpartially wound drum
3939
Tragtrommelcarrying drum
4040
StuhlungsrandStuhlungsrand
4242
Wickelspalt, NipWinding nip
4444
letzter Trockenzylinderlast drying cylinder
4646
Walzenspaltnip
4848
elektronische Steuerungelectronic control
A1A1
Abstanddistance
B1B1
Abstanddistance
A2A2
Abstanddistance
B2B2
Abstanddistance

Claims (51)

  1. Process for transferring a flexible material web (10), especially a paper or board web, from a preceding section (12) to at least one following section (14, 16) of a machine used for producing and/or treating the material web (10), especially a papermaking machine, in which the material web (10) is broken down by means of two dividing elements (20, 22) into an edge strip (24) extending in the web running direction (L), a transfer strip (26) adjacent thereto, which is transferred to at least one following machine section (14, 16), and the remaining web (28) adjoining this transfer strip (26), characterized in that the edge strip (24) is deflected laterally away from the transfer strip (26) and is tautened at the same time.
  2. Process according to Claim 1, characterized in that the edge strip (24) is deflected by means of at least one air jet.
  3. Process according to Claim 1 or 2, characterized in that the edge strip is led into a pulper (30) or broke container.
  4. Process according to one of the preceding claims, characterized in that, firstly, the dividing element (20) placed closest to the relevant web edge (32) is activated in order to produce the edge strip (24) and then, with the edge strip (30) already tautened and deflected, the other dividing element (22) is activated in order to produce the transfer strip (26).
  5. Process according to one of the preceding claims, characterized in that, following a transfer of the transfer strip (26) to at least one following machine section (14, 16), the dividing element (22) that is further removed from the relevant web edge (32) is moved to the opposite web edge (34) in order to divide off the remaining web (28).
  6. Process according to one of the preceding claims, characterized in that, following a transfer of the transfer strip (26) to at least one following machine section (14, 16), the dividing element (20) placed closest to the relevant web edge (32) is moved to the relevant web edge (32) in order to divide off the edge strip (24).
  7. Process according to one of the preceding claims, characterized in that, at least at the start of the transfer operation, the transfer strip (26) is produced in the region of the relevant web edge (32).
  8. Process according to one of the preceding claims, characterized in that the transfer strip (26) is initially produced at a very small distance (A1) from the relevant web edge (32), and the distance from the web edge (32) is subsequently enlarged by appropriately moving the dividing elements (20, 22) in the transverse direction.
  9. Process according to Claim 8, characterized in that the maximum distance (A2) of the transfer strip (26) from the relevant web edge (32) is smaller than its distance from the opposite web edge (34).
  10. Process according to Claim 8 or 9, characterized in that the transfer strip (26) is positioned appropriately with respect to at least one following machine section (16) by moving the dividing elements (20, 22) in the transverse direction.
  11. Process according to Claim 10, characterized in that the transfer strip (26) is positioned in such a way that it is ultimately gripped over its entire width in the relevant following machine section (16).
  12. Process according to one of the preceding claims, characterized in that, in order to transfer it into at least one first machine section (14), the transfer strip (26) is initially produced at a relatively small distance (A1) from the relevant web edge (32), and then, for the transfer into at least one further machine section (16), the distance from the web edge (32) is enlarged by means of appropriately moving the dividing elements (20, 22) in the transverse direction.
  13. Process according to one of the preceding claims, characterized in that, in order to set the respectively desired width of the transfer strip (26), the dividing elements (20, 22) are moved appropriately in the transverse direction.
  14. Process according to one of the preceding claims, characterized in that the dividing element (20, 22) used is in each case a dividing element that operates without contact, in particular a water-jet or laser-beam dividing element, or a mechanical cutting element, in particular a knife or circular-knife element.
  15. Process according to one of the preceding claims, characterized in that dividing elements (20, 22) operating without contact are used, and the dividing operation is carried out on the last drying cylinder (44) of a papermaking machine (18).
  16. Process according to one of the preceding claims, characterized in that the dividing elements (20, 22) used are cutting elements that operate mechanically, and the dividing operation is carried out in an unsupported draw of the material web (10).
  17. Process according to one of the preceding claims, characterized in that, before the start of the dividing operation, the material web (10) is led into a pulper (30) or broke container.
  18. Process according to one of the preceding claims, characterized in that both dividing elements (20, 22) are applied within the material web (10) and the division is accordingly made within this material web (10).
  19. Process according to one of Claims 1 to 17, characterized in that at least one dividing element (20, 22) is already activated outside the material web.
  20. Process according to one of the preceding claims, characterized in that the edge strip (24) and the remaining web (28) are led into a pulper (30) or broke container until full width running.
  21. Process according to one of the preceding claims, characterized in that the transfer strip (26) is transferred to the following machine section (14) by at least one auxiliary feed device, in particular a rope guide, transfer belt, air guide device and/or the like.
  22. Process according to one of the preceding claims, characterized in that the edge strip (24) is produced with a width which lies in a range from about 50 mm to about 300 mm and preferably in a range from about 50 mm to about 250 mm.
  23. Process according to one of the preceding claims, characterized in that the transfer strip (26) is produced with a width which lies in a range from about 50 mm to about 400 mm and preferably in a range from about 50 mm to about 200 mm.
  24. Process according to one of the preceding claims, characterized in that the transfer strip (26) is produced in such a way that its edge (36) placed closest to the relevant web edge (32) is at a distance (B1, B2) from the framing edge (40) or from the rope guides which is greater than about 150 mm.
  25. Process according to one of the preceding claims, characterized in that the transfer strip (26) is produced in such a way that its edge (36) placed closest to the relevant web edge (32) is at a distance (B1, B2) from the framing edge (40) or from the rope guides which lies in a range from about 150 mm to about 1000 mm.
  26. Apparatus for transferring a flexible material web (10), especially a paper or board web, from a preceding section (12) to at least one following section (14, 16) of a machine (18) used for producing and/or treating the material web (10), especially a papermaking machine, in which the material web (10) can be broken down by means of two dividing elements (20, 22) into an edge strip (24) extending in the web running direction (L), a transfer strip (26) adjacent thereto, which is transferred to at least one following machine section (14, 16), and the remaining web (28) adjoining this transfer strip (26), for implementing the method according to one of the preceding claims, characterized in that means are provided to deflect the edge strip (24) laterally away from the transfer strip (26) and to tauten it at the same time.
  27. Apparatus according to Claim 26, characterized in that at least one air-jet producing device is provided to deflect the edge strip (24).
  28. Apparatus according to Claim 26 or 27, characterized in that a guide apparatus is provided to deflect the edge strip (24).
  29. Apparatus according to Claim 28, characterized in that the guide apparatus has a guide surface which, as viewed in the running direction (L) of the edge strip (24), changes from a flat plane at the start in the region at which the edge strip (24) is picked up into a curved, outwardly pointing contact surface for the edge strip (24).
  30. Apparatus according to Claim 28, characterized in that the guide apparatus comprises a plurality of, in particular three, at least substantially flat guide plates provided with side cheeks and arranged in the form of a cascade.
  31. Apparatus according to one of the preceding Claims 26-30, characterized in that the dividing elements (20, 22), which can preferably be moved transversely with respect to the web running direction (L), can be driven via an electronic control system (48).
  32. Apparatus according to one of the preceding Claims 26-31, characterized in that, firstly, the dividing element (20) placed closest to the relevant web edge (32) can be activated in order to produce the edge strip (24) and then, with the edge strip (30) already tautened and deflected, the other dividing element (22) can be activated in order to produce the transfer strip (26).
  33. Apparatus according to one of the preceding Claims 26-32, characterized in that, following a transfer of the transfer strip (26) to at least one following machine section (14, 16), the dividing element (22) further removed from the relevant web edge (32) can be moved to the opposite web edge (34) in order to divide off the remaining web (28).
  34. Apparatus according to one of the preceding Claims 26-33, characterized in that, following a transfer of the transfer strip (26) to at least one following machine section (14, 16), the dividing element (20) placed closest to the relevant web edge (32) can be moved to the relevant web edge (32) in order to divide off the edge strip (24).
  35. Apparatus according to one of the preceding Claims 26-34, characterized in that, at least at the start of the transfer operation, the transfer strip (26) is produced in the region of the relevant web edge (32).
  36. Apparatus according to one of the preceding Claims 26-35, characterized in that the transfer strip (26) is initially produced at a relatively small distance (A1) from the relevant web edge (32), and the distance from the web edge (32) is subsequently enlarged by appropriately moving the dividing elements (20, 22) in the transverse direction.
  37. Apparatus according to Claim 36, characterized in that the maximum distance (A2) of the transfer strip (26) from the relevant web edge (32) is smaller than its distance from the opposite web edge (34).
  38. Apparatus according to Claim 36 or 37, characterized in that the transfer strip (26) is positioned appropriately with respect to at least one following machine section (16) by moving the dividing elements (20, 22) in the transverse direction.
  39. Apparatus according to Claim 38, characterized in that the transfer strip (26) is positioned in such a way that it is ultimately gripped over its entire width in the relevant following machine section (16).
  40. Apparatus according to one of the preceding Claims 26-39, characterized in that, in order to transfer it into at least one first machine section (14), the transfer strip (26) is initially produced at a relatively small distance (A1) from the relevant web edge (32), and then, for the transfer into at least one further machine section (16), the distance from the web edge (32) is enlarged by means of appropriately moving the dividing elements (20, 22) in the transverse direction.
  41. Apparatus according to one of the preceding Claims 26-40, characterized in that the respectively desired width of the transfer strip (26) can be set by moving the dividing elements (20, 22) appropriately in the transverse direction.
  42. Apparatus according to one of the preceding Claims 26-41, characterized in that the dividing element (20, 22) provided is in each case a dividing element that operates without contact, in particular a water-jet or laser-beam dividing element, or a mechanical cutting element, in particular a knife or circular-knife element.
  43. Apparatus according to one of the preceding Claims 26-42, characterized in that dividing elements (20, 22) operating without contact are provided, and the dividing operation is carried out on the last drying cylinder (44) of a papermaking machine (18).
  44. Apparatus according to one of the preceding Claims 26-43, characterized in that the dividing elements (20, 22) used are cutting elements that operate mechanically, and the dividing operation is carried out in an unsupported draw of the material web (10).
  45. Apparatus according to one of the preceding Claims 26-44, characterized in that both dividing elements (20, 22) can be applied within the material web (10) in order to begin the division within this material web (10).
  46. Apparatus according to one of Claims 26 to 44, characterized in that at least one dividing element (20, 22) can already be activated outside the material web (10).
  47. Apparatus according to one of the preceding Claims 26-46, characterized in that, in order to transfer the transfer strip (26) to the following machine section (14), at least one auxiliary transfer device, in particular a rope guide, transfer belt, air guide device and/or the like, is provided.
  48. Apparatus according to one of the preceding Claims 26-47, characterized in that the dividing elements (20, 22) can be driven in such a way that the edge strip (24) is produced with a width which lies in a range from about 50 mm to about 300 mm and preferably in a range from about 50 mm to about 250 mm.
  49. Apparatus according to one of the preceding Claims 26-48, characterized in that the dividing elements (20, 22) can be driven in such a way that the transfer strip (26) is produced with a width which lies in a range from about 50 mm to about 400 mm and preferably in a range from about 50 mm to about 200 mm.
  50. Apparatus according to one of the preceding Claims 26-49, characterized in that the dividing elements (20, 22) can be driven in such a way that the edge (36) of the transfer strip (26) produced which is placed closest to the relevant web edge (32) is at a distance (B1, B2) from the framing edge (40) or from the rope guides which is greater than 150 mm.
  51. Apparatus according to one of the preceding Claims 26-50, characterized in that the dividing elements (20, 22) can be driven in such a way that the edge (36) of the transfer strip (26) produced which is placed closest to the relevant web edge (32) is at a distance (B1, B2) from the framing edge (40) or from the rope guides which lies in a range from about 150 mm to about 1000 mm.
EP01116387A 2000-07-10 2001-07-06 Process and apparatus for transferring a flexible web Expired - Lifetime EP1179632B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033456 2000-07-10
DE10033456A DE10033456A1 (en) 2000-07-10 2000-07-10 For the transfer of a paper/cardboard web between machine sections an edge strip is trimmed off and diverted to a pulper and cutters are positioned to cut a transfer leader strip to draw the web through cleanly

Publications (2)

Publication Number Publication Date
EP1179632A1 EP1179632A1 (en) 2002-02-13
EP1179632B1 true EP1179632B1 (en) 2005-03-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116387A Expired - Lifetime EP1179632B1 (en) 2000-07-10 2001-07-06 Process and apparatus for transferring a flexible web

Country Status (4)

Country Link
US (2) US6994773B2 (en)
EP (1) EP1179632B1 (en)
AT (1) ATE291122T1 (en)
DE (2) DE10033456A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033456A1 (en) 2000-07-10 2002-01-24 Voith Paper Patent Gmbh For the transfer of a paper/cardboard web between machine sections an edge strip is trimmed off and diverted to a pulper and cutters are positioned to cut a transfer leader strip to draw the web through cleanly
FI121715B (en) * 2002-07-01 2011-03-15 Metso Paper Inc Method and apparatus for threading a web in a drying section of a papermaking machine or the like
US7849770B2 (en) * 2004-10-07 2010-12-14 Douglas Machine, Inc. Film cutter
DE102007053700A1 (en) * 2007-11-10 2009-05-14 Andritz Küsters Gmbh Device for transferring a flexible material web, in particular a paper or board web
US8968519B2 (en) 2013-03-14 2015-03-03 Georgia-Pacific Consumer Products Lp Sheet edge trimming and removal from a structured paper fabric

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US1687847A (en) * 1928-10-16 Fafer making machine
US1279756A (en) * 1918-03-14 1918-09-24 Great Northern Paper Co Method and machine for making paper.
US3355349A (en) * 1964-12-14 1967-11-28 Andrew G Devlin Apparatus for conveying lead strip from driers to calenders in paper-making
DE3329987C1 (en) * 1983-08-19 1984-12-13 Jagenberg AG, 4000 Düsseldorf Device for introducing a web into a treatment machine
FI78528C (en) * 1988-01-26 1989-08-10 Valmet Paper Machinery Inc FOERFARANDE OCH ANORDNING FOER STYRNING AV PAPPERSBANANS SPETSDRAGNINGSBAND FRAON PRESSENS SLAETYTADE VALS ELLER MOTSVARANDE.
FI80921C (en) * 1988-08-25 1990-08-10 Ahlstroem Valmet Method and apparatus in connection with the drawing of a paper web
FI99283C (en) * 1996-07-16 1998-06-10 Valmet Corp Method for head export of a paper web or similar web-like material in a winding device, in particular a slitter, and device for carrying out the method
FI103683B1 (en) * 1997-01-30 1999-08-13 Valmet Corp A method of forming a headband in a paper machine / board machine
DE19900986A1 (en) * 1999-01-13 2000-07-20 Voith Sulzer Papiertech Patent Transfer leader strip at a paper web is cut by controlled cutters to give cutting lines forming a pointed leading end and parallel sides for a simple and trouble-free web transfer to a target zone at the papermaking machine
DE19910566A1 (en) * 1999-03-10 2000-09-14 Voith Sulzer Papiertech Patent Method for winding up a material web and winding machine for carrying out the method
DE20011943U1 (en) * 2000-07-10 2000-09-28 Voith Sulzer Papiertechnik Patent GmbH, 89522 Heidenheim Device for transferring a flexible material web
DE10033456A1 (en) 2000-07-10 2002-01-24 Voith Paper Patent Gmbh For the transfer of a paper/cardboard web between machine sections an edge strip is trimmed off and diverted to a pulper and cutters are positioned to cut a transfer leader strip to draw the web through cleanly
DE10137252A1 (en) * 2001-07-31 2003-02-13 Voith Paper Patent Gmbh Process for winding up a running material web and winding machine for carrying out the process
FI121715B (en) * 2002-07-01 2011-03-15 Metso Paper Inc Method and apparatus for threading a web in a drying section of a papermaking machine or the like

Also Published As

Publication number Publication date
EP1179632A1 (en) 2002-02-13
DE50105597D1 (en) 2005-04-21
US20020053414A1 (en) 2002-05-09
US6994773B2 (en) 2006-02-07
DE10033456A1 (en) 2002-01-24
US7005036B2 (en) 2006-02-28
ATE291122T1 (en) 2005-04-15
US20040016843A1 (en) 2004-01-29

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