EP1179632B1 - Process and apparatus for transferring a flexible web - Google Patents
Process and apparatus for transferring a flexible web Download PDFInfo
- 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
- Authority
- 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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Classifications
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- 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
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- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0448—With subsequent handling [i.e., of product]
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- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0605—Cut 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
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
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.
- 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
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
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
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
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
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
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
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
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
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
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
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
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
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
Bei einer beispielsweise direkten Überführung der Materialbahn 10 von der Trockenpartie 12 zum Wickel- oder Rollapparat 16 können beispielsweise die folgenden Verfahrensschritte vorgesehen sein:
20, 22 so, daß die gesamte Breite desPositionieren der Trennelemente Überführstreifens 26vom 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 34der 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.
- Positioning the
20, 22 so that the entire width of theseparating elements transfer strip 26 is detected by thenip 42 at the end of the respectivesubsequent machine section 16, - Activating the
web edge 32closest separating element 20 for cutting amarginal 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 atransfer 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 theopposite edge 34 of thematerial web 10 and severing theresidual web 28, - Moving the
first separating element 20 to theweb edge 32 and severing themarginal strip 24; - Deactivating the cutting function of the two separating
20, 22,elements - Method of the two separating
20, 22 in the respective starting position.elements
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
20, 22 befinden sich in der jeweiligen Trennposition,beiden Trennelemente - 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 desÜberführstreifens 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 20, 22,Trennelementen - 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).
- the two separating
20, 22 are in the respective separating position,elements - Activating the
first separating element 20 closest to theweb edge 32 for cutting amarginal 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 atransfer strip 26, - Transferring the
transfer strip 26 in Überführhilfseinrichtungen and from there to or via thenext machine section 14 to a nip 46 ("pull stack") for clamping and tightening of thetransfer strip 26, said "pull stack" here between two 14, 16 arranged ismachine sections - Displacing the
transfer strip 26 to another width position matched to thesecond machine section 16 by moving the two separating 20, 22 into the new width position (see in particular FIG.elements - Optimizing the width of the
transfer strip 26 by correspondingly changing the distance between the two separating 20, 22,elements - 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 theopposite web edge 28 and severing theresidual web 28, - Moving the
first separating element 20 to theadjacent web edge 32 and severing themarginal strip 24; - Deactivating the cutting function of the two separating
20, 22,elements - 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
- 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)
- 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.
- Process according to Claim 1, characterized in that the edge strip (24) is deflected by means of at least one air jet.
- Process according to Claim 1 or 2, characterized in that the edge strip is led into a pulper (30) or broke container.
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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).
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Apparatus according to Claim 26, characterized in that at least one air-jet producing device is provided to deflect the edge strip (24).
- Apparatus according to Claim 26 or 27, characterized in that a guide apparatus is provided to deflect the edge strip (24).
- 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).
- 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.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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).
- 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).
- 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).
- 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).
- 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.
- 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.
- 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.
- 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.
- 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.
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
ID=7648404
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)
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 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2000
- 2000-07-10 DE DE10033456A patent/DE10033456A1/en not_active Withdrawn
-
2001
- 2001-07-06 AT AT01116387T patent/ATE291122T1/en not_active IP Right Cessation
- 2001-07-06 DE DE50105597T patent/DE50105597D1/en not_active Expired - Lifetime
- 2001-07-06 EP EP01116387A patent/EP1179632B1/en not_active Expired - Lifetime
- 2001-07-10 US US09/902,339 patent/US6994773B2/en not_active Expired - Fee Related
-
2003
- 2003-07-16 US US10/621,224 patent/US7005036B2/en not_active Expired - Fee Related
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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