EP0347573A2 - Method and device for advancing the beginning of a web of material,in particular a paper web,from below onto the roller of a winding machine - Google Patents

Method and device for advancing the beginning of a web of material,in particular a paper web,from below onto the roller of a winding machine Download PDF

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Publication number
EP0347573A2
EP0347573A2 EP89108464A EP89108464A EP0347573A2 EP 0347573 A2 EP0347573 A2 EP 0347573A2 EP 89108464 A EP89108464 A EP 89108464A EP 89108464 A EP89108464 A EP 89108464A EP 0347573 A2 EP0347573 A2 EP 0347573A2
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EP
European Patent Office
Prior art keywords
web
guide plate
beginning
roller
compressed air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89108464A
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German (de)
French (fr)
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EP0347573B1 (en
EP0347573A3 (en
Inventor
Georg Müller
Heinz Hofferberth
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Jagenberg AG
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Jagenberg AG
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Publication date
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Priority to AT89108464T priority Critical patent/ATE86585T1/en
Publication of EP0347573A2 publication Critical patent/EP0347573A2/en
Publication of EP0347573A3 publication Critical patent/EP0347573A3/en
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Publication of EP0347573B1 publication Critical patent/EP0347573B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41425—Starting winding process involving blowing means, e.g. air blast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/52—Auxiliary process performed during handling process for starting
    • B65H2301/522—Threading web into machine

Definitions

  • the invention relates to a method for leading the beginning of a material web, in particular a paper web, from below to a rolling machine roller according to the preamble of claim 1 and a device for carrying out the method.
  • the invention has for its object to provide a generic method that ensures safe vertical transport with the lowest possible compressed air supply. Another object is to provide a device for carrying out a method according to the invention.
  • the first object is achieved with the measures of claim 1. It has been shown that a laminar flow which is essentially parallel to a baffle plate and adheres to its surface ensures safe transport of the beginning of the web.
  • the second object is achieved with the features of claim 2.
  • the liftable and lowerable guide plate according to claim 5 enables the web to be guided vertically between the knives of a slitter.
  • the material web 1 - a paper web - is fed from below to a support roller 2 designed as a suction roller.
  • a support roller 2 designed as a suction roller.
  • Three guide rollers 3, 4, 5 are used to guide the paper web Web 1 is directed upwards by the guide roller 3, by the guide roller 4 into the vertical and by the guide roller 5 tangentially to the support roller 2.
  • a longitudinal cutting device In the area of the vertical web guide between the guide rollers 4 and 5 there is a longitudinal cutting device with several pairs of circular knives arranged on a parallel to the support roller axis.
  • the pairs of circular knives consisting of the upper knife 6 and the lower knife 7 serve to divide the web 1 into individual webs, the upper knives 6 being movable away from the lower knives 7 with a short stroke.
  • a belt rocker 8 which can be pivoted onto the circumference of the guide roller 3 and a sheet 9 which adjoins it in an aligned manner steer the start of the web in the direction of the guide roller 4.
  • a short distance apart from the guide roller 4 is a means of a pneumatic Piston-cylinder unit 10 vertically movable, vertically extending over a part of the working width guide plate arranged, which extends in the raised position from the guide roller 4 through the knives 6, 7 to the guide roller 5.
  • the upper edge of the guide plate 11 is approximately at the height of the guide roller 4.
  • the guide plate 11, which is arranged centrally, transverse to the direction of travel is approximately 500 mm wide in order to guide a web start of approximately 300-400 mm in width .
  • 11 flat jet nozzles 12 are arranged at regular intervals from one another across the width of the guide plate and are fed from a compressed air supply, not shown.
  • the approximately 50 mm wide flat jet nozzles 12 each have a plurality of discharge openings arranged next to one another with a diameter of approximately 1 mm, from which the compressed air emerges in a laminar flow.
  • the basic structure of such flat jet nozzles is described in DE-PS 24 13 614.
  • the flat jet nozzles 12 - in the present example there are three - parallel to the guide plate 11 and at a very short distance from arranged this. It has been shown that the distance of the blow-out openings from the guide plate 11 must be less than 10 mm, preferably it is between 0.5 and 1 mm.
  • a further nozzle 13 directs the start of the web in the tangential direction to the support roller 2.
  • a belt rocker 14 which can be placed on the support roller 2 is arranged on this side .
  • the belt arms 8, 14 are pivoted away from the respective rollers 3, 2, the guide plate 11 is in the lowest position outside the longitudinal cutting device 6, 7 so that the upper knife 6 is in contact with the lower knife 7 in the working position, and the nozzles 12, 13 are out of operation .
  • the knives 6, 7 are first moved apart so that the guide plate 11 can then be moved into its upper position. In this position, it extends along the entire route on which the new start of the path must be guided vertically.
  • the ribbon arms 8, 14 are applied to the rollers 3, 12, and the nozzles 12, 13 are fed with compressed air.
  • the width of the beginning of the web to be introduced is reduced to approx. 300 - 400 mm by tearing off at the edges.
  • the length of the narrowed web start corresponds approximately to the conveyor path guide roller 3 - support roller 2, in the present example approximately 1500 mm.
  • the new start of the web is then guided with conveyor belts, not shown, from the unwind to the guide roller 3, where it is deflected upwards by the adjacent rocker arm 8 via the sheet 9 into the area of the air flow of the flat jet nozzles 12.
  • the flat jet nozzles 12 blow compressed air vertically upwards in a laminar flow along the surface of the guide plate 11. Due to the increased flow speed compared to the transport speed of the beginning of the path, a negative pressure is created between the guide plate 11 and the path 1, which leads the path 1 directly to the guide plate 11. In addition, due to the roughness of the paper surface, a force component acting vertically upward acting on the web is formed, which the web 1 transports upwards in cooperation with the feeding conveyor belts.

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  • Replacement Of Web Rolls (AREA)
  • Advancing Webs (AREA)
  • Unwinding Webs (AREA)
  • Paper (AREA)

Abstract

In a method for advancing the beginning of a web (1) of material, in particular a paper web, from below onto the roller (2) of a winding machine, the beginning of the web is moved upwards on a vertical guide plate (11) by means of compressed air. The compressed air is thereby blown upwards along the surface of the guide plate (11) and essentially parallel to the latter in an essentially laminar stream. Serving for carrying out the method is a device having a vertical guide plate (11), extending over part of the operating width, and having at least one flat jet nozzle (12) which has a plurality of upwardly directed blower openings arranged parallel to the guide plate (11), the distance of the blower openings from the guide plate (11) being less than 10 mm, preferably 0.5-1 mm. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Heranführen des Anfanges einer Materialbahn, insbesondere einer Papierbahn, von unten an eine Rollmaschinenwalze gemäß dem Oberbegriff des Patentan­spruchs 1 und eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for leading the beginning of a material web, in particular a paper web, from below to a rolling machine roller according to the preamble of claim 1 and a device for carrying out the method.

Bei Rollmaschinen mit Bahnzufuhr von unten an die einzelnen Aufwickelstationen ist der Einzug einer neuen Papierbahn - z.B. beim Wechsel einer Vorratsrolle oder bei Bahnrissen - relativ zeitaufwendig. Dazu muß bei Stützwalzen-Rollmaschinen eine Bedienungsperson in den Unterflur liegenden, schwer zugänglichen Bereich unterhalb der Stützwalze herabsteigen, um manuell den Anfang der Bahn senkrecht nach oben durch die in diesem Bereich angeordnete Längsschneideeinrichtung zu führen und an der Unterseite der Stützwalze anzulegen. Die Messer der Längsschneidevorrichtung können dazu mit geringem Hub auseinandergefahren werden. Die weitere Führung des Bahnanfanges zu den Aufwickelstationen erfolgt anschließend mit der Stützwalze, die zu diesem Zweck Saugöffnungen aufweist und während des Einzuges mit Unterdruck beaufschlagt wird. Eine Stützwalzen-Rollmaschine mit Bahnzufuhr von unten ist in der DE-PS 31 02 894 beschrieben.In the case of roll machines with web feed from below to the individual winding stations, pulling in a new paper web - for example when changing a supply roll or in the event of web breaks - is relatively time-consuming. For this purpose, in the case of support roller rolling machines, an operator must descend into the underfloor, difficult-to-access area below the support roller in order to manually guide the start of the web vertically upward through the longitudinal cutting device arranged in this area and to place it on the underside of the support roller. The knives of the slitter can be moved apart with a small stroke. The further guidance of the beginning of the web to the winding stations is then carried out with the support roller, which has suction openings for this purpose and is subjected to negative pressure during the drawing-in. A support roller rolling machine with web feed from below is described in DE-PS 31 02 894.

Aus der DE-OS 31 17 094 ist ein gattungsgemäßes Verfahren bekannt, bei dem aus einem sich in Förderrichtung der Bahn erstreckenden, heb- und senkbaren Bahnführungstisch aus einer Mehrzahl von Ausblasöffnungen Druckluft gegen die Bahn und/oder mit mindestens einer Komponente der Strömungsrichtung in Bahnförderrichtung strömt. In der Praxis hat sich jedoch das dort beschriebene Verfahren als unbefriedigend gezeigt. Selbst bei Zufuhr von erheblichen Druckluftmengen bei hohem Drücken ist die dort gezeigte Vorrichtung nicht in der Lage, den Bahnanfang sicher über die geforderte Strecke senkrecht nach oben zu fördern.From DE-OS 31 17 094 a generic method is known in which compressed air against the web and / or with at least one component of the flow direction in the web conveying direction from a plurality of blow-out openings extending from a web guide table extending in the conveying direction of the web flows. In practice, however, the method described there has proven to be unsatisfactory. Even with the supply of considerable amounts of compressed air at high pressures, the device shown there is unable to safely convey the start of the web vertically upwards over the required distance.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Verfahren zu schaffen, das einen sicheren senkrechten Transport bei möglichst geringer Druckluftzufuhr gewährleistet. Eine weitere Aufgabe liegt in der Bereitstellung einer Vorrichtung zur Durchführung eines erfindungsgemäßen Verfahrens.The invention has for its object to provide a generic method that ensures safe vertical transport with the lowest possible compressed air supply. Another object is to provide a device for carrying out a method according to the invention.

Die erste Aufgabe wird mit den Maßnahmen des Patentanspruchs 1 gelöst. Es hat sich gezeigt, daß eine zu einem Leitblech im wesentlichen parallele, an dessen Oberfläche anhaftende und laminare Strömung einen sicheren Transport des Bahnanfanges gewährleistet.The first object is achieved with the measures of claim 1. It has been shown that a laminar flow which is essentially parallel to a baffle plate and adheres to its surface ensures safe transport of the beginning of the web.

Die zweite Aufgabe wird mit den Merkmalen des Anspruchs 2 gelöst.The second object is achieved with the features of claim 2.

Die Unteransprüche enthalten bevorzugte Ausführungsformen einer Vorrichtung nach Anspruch 2:The subclaims contain preferred embodiments of a device according to claim 2:

Während das Merkmal des Anspruchs 4 den zum Transport erforderlichen Druck vermindert, ermöglicht der heb- und senkbare Leitblech nach Anspruch 5 die senkrechte Führung der Bahn zwischen den Messern einer Längsschneideeinrichtung hindurch.While the feature of claim 4 reduces the pressure required for transport, the liftable and lowerable guide plate according to claim 5 enables the web to be guided vertically between the knives of a slitter.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

  • Figur 1
    zeigt schematisch eine erfindungsgemäße Vorrichtung in Seitenansicht.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
  • Figure 1
    schematically shows a device according to the invention in side view.

Bei der in Fig. 1 ausschnittsweise gezeigten Rollmaschine erfolgt die Zuführung der Materialbahn 1 - eine Papierbahn - von unten an eine als Saugwalze ausgebildete Stützwalze 2. Zur Papierbahnführung dienen drei Leitwalzen 3, 4, 5. Die von einer nicht dargestellten Abrollung in etwa waagerecht ankommende Bahn 1 wird von der Leitwalze 3 nach oben, von der Leitwalze 4 in die senkrechte und von der Leitwalze 5 tangential an die Stützwalze 2 gelenkt.In the roll machine shown in detail in FIG. 1, the material web 1 - a paper web - is fed from below to a support roller 2 designed as a suction roller. Three guide rollers 3, 4, 5 are used to guide the paper web Web 1 is directed upwards by the guide roller 3, by the guide roller 4 into the vertical and by the guide roller 5 tangentially to the support roller 2.

Im Bereich der senkrechten Bahnführung zwischen den Leitwalzen 4 und 5 befindet sich eine Längsschneideeinrichtung mit mehreren, auf einer Parallelen zur Stützwalzenachse angeordneten Kreismesserpaaren. Die aus Obermesser 6 und Untermesser 7 bestehenden Kreismesserpaare dienen zum Aufteilen der Bahn 1 in Einzelbahnen, wobei die Obermesser 6 mit kurzem Hub von den Untermessern 7 wegbewegbar sind.In the area of the vertical web guide between the guide rollers 4 and 5 there is a longitudinal cutting device with several pairs of circular knives arranged on a parallel to the support roller axis. The pairs of circular knives consisting of the upper knife 6 and the lower knife 7 serve to divide the web 1 into individual webs, the upper knives 6 being movable away from the lower knives 7 with a short stroke.

Zum automatischen Heranführen eines neuen Bahnanfangs an die Stützwalze 2 dienen folgende zusätzlichen Elemente:The following additional elements are used to automatically bring a new start of the web to the support roller 2:

Eine an den Umfang der Leitwalze 3 anschwenkbare Bänderschwinge 8 und ein fluchtend sich daran anschließendes Blech 9 lenken den Bahnanfang in Richtung der Leitwalze 4. Mit kurzem Abstand neben der Leitwalze 4 ist ein mittels einer pneumatischen Kolben-Zylinder-Einheit 10 vertikal beweglicher, sich senkrecht über einen Teil der Arbeitsbreite erstreckendes Leitblech angeordnet, das in hochgefahrener Position von der Leitwalze 4 durch die Messer 6, 7 bis zur Leitwalze 5 reicht. In niedergefahrener Position befindet sich die Oberkante des Leitblechs 11 etwa in Höhe der Leitwalze 4. Im vorliegenden Ausführungsbeispiel ist das - quer zur Laufrichtung - zentral angeordnete Leitblech 11 ca. 500 mm breit, um einen Bahnanfang von ca. 300 - 400 mm Breite zu führen.A belt rocker 8 which can be pivoted onto the circumference of the guide roller 3 and a sheet 9 which adjoins it in an aligned manner steer the start of the web in the direction of the guide roller 4. A short distance apart from the guide roller 4 is a means of a pneumatic Piston-cylinder unit 10 vertically movable, vertically extending over a part of the working width guide plate arranged, which extends in the raised position from the guide roller 4 through the knives 6, 7 to the guide roller 5. In the lowered position, the upper edge of the guide plate 11 is approximately at the height of the guide roller 4. In the present exemplary embodiment, the guide plate 11, which is arranged centrally, transverse to the direction of travel, is approximately 500 mm wide in order to guide a web start of approximately 300-400 mm in width .

Im Bereich zwischen Leitblech 11 und Blech 9 sind mit regelmäßigem Abstand voneinander über die Breite des Leitblechs 11 Flachstrahldüsen 12 angeordnet, die aus einer nicht dargestellten Druckluftversorgung gespeist werden. Die etwa 50 mm breiten Flachstrahldüsen 12 weisen jeweils mehrere, nebeneinander angeordnete Ausblasöffnungen mit ca. 1 mm Durchmesser auf, aus denen die Druckluft in laminarer Strömung austritt. Der prinzipielle Aufbau derartiger Flachstrahldüsen ist in der DE-PS 24 13 614 beschrieben. Die Anordnung der Flachstrahldüsen 12, und damit die Strömungsrichtung der Druckluft, ist für den Transport der Bahn 1 senkrecht nach oben von entscheidender Bedeutung: Dazu sind die Flachstrahldüsen 12 - im vorliegenden Beispiel sind es drei - parallel zum Leitblech 11 und in sehr geringem Abstand zu diesem angeordnet. Es hat sich gezeigt, daß der Abstand der Ausblasöffnungen vom Leitblech 11 geringer als 10 mm sein muß, vorzugsweise beträgt er zwischen 0,5 und 1 mm.In the area between the guide plate 11 and the plate 9, 11 flat jet nozzles 12 are arranged at regular intervals from one another across the width of the guide plate and are fed from a compressed air supply, not shown. The approximately 50 mm wide flat jet nozzles 12 each have a plurality of discharge openings arranged next to one another with a diameter of approximately 1 mm, from which the compressed air emerges in a laminar flow. The basic structure of such flat jet nozzles is described in DE-PS 24 13 614. The arrangement of the flat jet nozzles 12, and thus the flow direction of the compressed air, is of crucial importance for the transport of the web 1 vertically upwards: for this purpose, the flat jet nozzles 12 - in the present example there are three - parallel to the guide plate 11 and at a very short distance from arranged this. It has been shown that the distance of the blow-out openings from the guide plate 11 must be less than 10 mm, preferably it is between 0.5 and 1 mm.

Am oberen Ende des senkrechten Teils der Förderstrecke im Bereich der Leitwalze 5 lenkt eine weitere Düse 13 den Bahnanfang in tangentialer Richtung zur Stützwalze 2. Für eine sichere Anlage des Bahnanfangs an die Stützwalze 2 ist an dieser Seite eine an die Stützwalze 2 anlegbare Bänderschwinge 14 angeordnet.At the upper end of the vertical part of the conveying path in the region of the guide roller 5, a further nozzle 13 directs the start of the web in the tangential direction to the support roller 2. For a secure contact of the start of the web with the support roller 2, a belt rocker 14 which can be placed on the support roller 2 is arranged on this side .

Während des Aufwickelns der durch die Längsschneide-­einrichtung 6, 7 erzeugten Einzelbahnen auf Wickelrollen, die sich auf dem oberen Teil der Stützwalze 2 abstützen, befinden sich die Elemente zur Einführung eines neuen Bahnanfangs in Ruhestellung, so daß sie die Bahnführung und damit den Wickelvorgang nicht behindern:During the winding of the individual webs produced by the longitudinal cutting device 6, 7 on winding rolls which are supported on the upper part of the support roller 2, the elements for introducing a new web start are in the rest position, so that they do not guide the web and thus the winding process hinder:

Die Bänderschwingen 8, 14 sind von den jeweiligen Walzen, 3, 2 weggeschwenkt, das Leitblech 11 steht in unterster Position außerhalb der Längsschneideeinrichtung 6, 7 so daß das Obermesser 6 in Arbeitsstellung am Untermesser 7 anliegt, und die Düsen 12, 13 sind außer Betrieb.The belt arms 8, 14 are pivoted away from the respective rollers 3, 2, the guide plate 11 is in the lowest position outside the longitudinal cutting device 6, 7 so that the upper knife 6 is in contact with the lower knife 7 in the working position, and the nozzles 12, 13 are out of operation .

Zum Heranführen eines neuen Bahnanfangs, z.B. bei einer neuen Vorratsrolle in der Abrollung, werden zunächst die Messer 6, 7 auseinandergefahren, damit anschließend das Leitblech 11 in seine obere Position bewegt werden kann. Es erstreckt sich in dieser Position entlang der gesamten Strecke, auf der der neue Bahnanfang senkrecht geführt werden muß. Zusätzlich werden die Bänderschwingen 8, 14 an die Walzen 3, 12 angelegt, und die Düsen 12, 13 werden mit Druckluft gespeist.To initiate a new path start, e.g. with a new supply roll in the unwind, the knives 6, 7 are first moved apart so that the guide plate 11 can then be moved into its upper position. In this position, it extends along the entire route on which the new start of the path must be guided vertically. In addition, the ribbon arms 8, 14 are applied to the rollers 3, 12, and the nozzles 12, 13 are fed with compressed air.

Im Bereich der Abrollung wird die Breite des einzuführenden Bahnanfangs durch Abreißen an den Rändern auf ca. 300 - 400 mm verringert. Die Länge des geschmälerten Bahnanfangs entspricht in etwa der Förderstrecke Leitwalze 3 - Stützwalze 2, im vorliegenden Beispiel ca. 1500 mm. Der neue Bahnanfang wird anschließend mit nicht dargestellten Förderbändern von der Abrollung zu der Leitwalze 3 geführt, wo er von der anliegenden Bänderschwinge 8 nach oben, über das Blech 9 in den Bereich der Luftströmung der Flachstrahldüsen 12 umgelenkt wird.In the unwinding area, the width of the beginning of the web to be introduced is reduced to approx. 300 - 400 mm by tearing off at the edges. The length of the narrowed web start corresponds approximately to the conveyor path guide roller 3 - support roller 2, in the present example approximately 1500 mm. The new start of the web is then guided with conveyor belts, not shown, from the unwind to the guide roller 3, where it is deflected upwards by the adjacent rocker arm 8 via the sheet 9 into the area of the air flow of the flat jet nozzles 12.

Aufgrund ihres kurzen Abstandes vom Leitblech 11 blasen die Flachstrahldüsen 12 Druckluft in einer laminaren Strömung entlang der Oberfläche des Leitbleches 11 senkrecht nach oben. Aufgrund der - gegenüber der Transportgeschwindigkeit des Bahnanfangs - erhöhten Strömungsgeschwindigkeit entsteht zwischen dem Leitblech 11 und der Bahn 1 ein Unterdruck, der die Bahn 1 unmittelbar am Leitblech 11 führt. Zusätzlich bildet sich aufgrund der Rauheit der Papieroberfläche eine auf die Bahn wirkende, senkrecht nach oben weisende Kraftkomponente, die die Bahn 1 im Zusammenwirken mit den nachschiebenden Förderbändern nach oben transportiert.Because of their short distance from the guide plate 11, the flat jet nozzles 12 blow compressed air vertically upwards in a laminar flow along the surface of the guide plate 11. Due to the increased flow speed compared to the transport speed of the beginning of the path, a negative pressure is created between the guide plate 11 and the path 1, which leads the path 1 directly to the guide plate 11. In addition, due to the roughness of the paper surface, a force component acting vertically upward acting on the web is formed, which the web 1 transports upwards in cooperation with the feeding conveyor belts.

Wenn der Bahnanfang den Bereich der Leitwalze 5 erreicht hat, wird er von der aus der Düse 13 ausströmenden Druckluft in Richtung zur Bänderschwinge 14 umgelenkt und legt sich mit deren Hilfe an der Stützwalze 2 an. Sobald der an der Stützwalze anliegende, von dieser durch Ansaugen gehaltene Bahnanfang ausreichend groß ist, werden die Bänderschwingen 8, 14 wieder abgeschwenkt, das Leitblech 11 wird in seine untere Position gefahren, und die Messer 6, 7 werden in Arbeitsstellung bewegt. Nachdem die neuen Bahnanfänge der Einzelbahnen an Wickelhülsen befestigt wurden, kann die Rollmaschine auf ihre maximale Wickelgeschwindigkeit beschleunigt werden.When the beginning of the web has reached the area of the guide roller 5, it is deflected by the compressed air flowing out of the nozzle 13 in the direction of the belt rocker 14 and, with its help, rests on the support roller 2. As soon as the web start, which is in contact with the back-up roller and held by suction, is sufficiently large, the band rockers 8, 14 are pivoted again, the guide plate 11 is moved into its lower position, and the knives 6, 7 are moved into the working position. After the new web beginnings of the individual webs have been attached to winding cores, the rolling machine can be accelerated to its maximum winding speed.

Claims (5)

1. Verfahren zum Heranführen des Anfanges einer Materialbahn, insbesondere einer Papierbahn, von unten an eine Rollmaschinenwalze,
bei dem der Bahnanfang mittels Druckluft an einem senkrechten, plattenförmigen Bahnführungselement nach oben bewegt wird, dadurch gekennzeichnet, daß die Druckluft in einer im wesentlichen laminaren Strömung entlang der Oberfläche eines Leitbleches und im wesentlichen parallel zu dieser nach oben geblasen wird.1. Method for leading the start of a material web, in particular a paper web, from below to a rolling machine roller,
in which the beginning of the web is moved upwards by means of compressed air on a vertical, plate-shaped web guiding element, characterized in that the compressed air is blown upwards in a substantially laminar flow along the surface of a guide plate and essentially parallel to it. 2. Vorrichtung zur Durchführung eines Verfahrens nach Anspruch 1, gekennzeichnet durch ein senkrechtes, sich über einen Teil der Arbeitsbreite erstreckendes Leitblech (11) und durch mindestens eine Flachstrahldüse (12) mit mehreren zum Leitblech (11) Parallel angeordneten, nach oben weisenden Ausblasöffnungen, wobei der Abstand der Ausblasöffnungen vom Leitblech (11) weniger als 10 mm, vorzugsweise 0,5-1mm, beträgt.2. Device for carrying out a method according to claim 1, characterized by a vertical baffle (11) extending over part of the working width and by at least one flat jet nozzle (12) with a plurality of blow-out openings arranged in parallel with the baffle (11), wherein the distance of the blow-out openings from the guide plate (11) is less than 10 mm, preferably 0.5-1 mm. 3.Vorrichtung nach Anspruch 2, gekennzeichnet durch 3-5 Flachstrahldüsen (12), die über die Breite des Leitblechs (11) mit regelmäßigem Abstand voneinander angeordnet sind.3.Device according to claim 2, characterized by 3-5 flat jet nozzles (12) which are arranged at regular intervals from one another over the width of the guide plate (11). 4. Vorrichtung nach Anspruch 2 oder 3, gekennzeichnet durch Flachstrahldüsen (12) mit Ausblasöffnungen, deren Durchmesser kleiner als 2 mm, vorzugsweise ca. 1 mm, beträgt.4. Apparatus according to claim 2 or 3, characterized by flat jet nozzles (12) with blow-out openings, the diameter of which is less than 2 mm, preferably approximately 1 mm. 5.Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Leitblech (11) heb- und senkbar ist.5.Device according to one of claims 2 to 4, characterized in that the guide plate (11) can be raised and lowered.
EP89108464A 1988-06-21 1989-05-11 Method and device for advancing the beginning of a web of material,in particular a paper web,from below onto the roller of a winding machine Expired - Lifetime EP0347573B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89108464T ATE86585T1 (en) 1988-06-21 1989-05-11 METHOD AND DEVICE FOR FEEDING THE BEGINNING OF A MATERIAL WEB, ESPECIALLY A PAPER WEB, FROM BOTTOM TO A ROLLER ROLLER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3820846 1988-06-21
DE3820846A DE3820846A1 (en) 1988-06-21 1988-06-21 METHOD AND DEVICE FOR APPROACHING THE START OF A MATERIAL RAIL, IN PARTICULAR A PAPER RAIL, FROM A BOTTOM OF A ROLLER MACHINE ROLL

Publications (3)

Publication Number Publication Date
EP0347573A2 true EP0347573A2 (en) 1989-12-27
EP0347573A3 EP0347573A3 (en) 1990-11-07
EP0347573B1 EP0347573B1 (en) 1993-03-10

Family

ID=6356879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108464A Expired - Lifetime EP0347573B1 (en) 1988-06-21 1989-05-11 Method and device for advancing the beginning of a web of material,in particular a paper web,from below onto the roller of a winding machine

Country Status (8)

Country Link
US (1) US5328136A (en)
EP (1) EP0347573B1 (en)
JP (1) JPH0243153A (en)
AT (1) ATE86585T1 (en)
CA (1) CA1333917C (en)
DE (2) DE3820846A1 (en)
ES (1) ES2039745T3 (en)
FI (1) FI95684C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741103A2 (en) * 1995-05-05 1996-11-06 Maschinenfabrik Wifag Device for transferring the leading end of a material web in a rotary
WO1999028227A1 (en) * 1997-12-01 1999-06-10 Valmet Corporation Change device of a reel-up and method for changing a roll
DE10338781A1 (en) * 2003-08-23 2005-03-17 Voith Paper Patent Gmbh Method for transferring material web running over winding rollers involves separating web along single continuous separation line and using air stream to transfer and guide it to winding core
IT202100014702A1 (en) * 2021-06-07 2022-12-07 A Celli Paper Spa UNWINDER FOR TAP MATERIAL WITH SYSTEMS TO REDUCE THE DYNAMIC VACUUM DURING THE UNWIND AND METHOD

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
DE3820846A1 (en) * 1988-06-21 1989-12-28 Jagenberg Ag METHOD AND DEVICE FOR APPROACHING THE START OF A MATERIAL RAIL, IN PARTICULAR A PAPER RAIL, FROM A BOTTOM OF A ROLLER MACHINE ROLL
DE3933861A1 (en) * 1989-10-11 1991-04-18 Jagenberg Ag METHOD AND DEVICE FOR INSERTING A MATERIAL RAIL IN A PROCESSING MACHINE
DE4018883C1 (en) * 1990-06-13 1991-10-10 J.M. Voith Gmbh, 7920 Heidenheim, De
DE4029914A1 (en) * 1990-09-21 1992-03-26 Jagenberg Ag CARRIER ROLLING MACHINE
US5318237A (en) * 1992-10-08 1994-06-07 Fmc Corporation Air horn for web winding machine
DE9414449U1 (en) * 1994-09-06 1996-01-11 Beloit Technologies, Inc., Wilmington, Del. Winding machine
DE19848812A1 (en) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Device to place front end of paper length on reel-spool has placing unit to press paper length to surface of placing roller in front of winding gap
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
US20110240706A1 (en) * 2010-03-30 2011-10-06 Brian Christopher Schwamberger Web diverting apparatus
CN102730454B (en) * 2012-06-29 2014-08-27 上海纺印印刷包装有限公司 Recovery equipment for cut scraps
US10071871B2 (en) 2013-03-14 2018-09-11 Gpcp Ip Holdings Llc Air knife configured to improve rolling of paper product
US10040583B2 (en) * 2015-07-23 2018-08-07 Perpetual Machine Company Carpet wrapping apparatus and method of using same
CN111703932B (en) * 2020-06-12 2022-09-13 石狮梵源服饰有限公司 Rewinding sideline head shearing machine for machining
DE102022113463A1 (en) * 2022-05-27 2023-11-30 Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. SYSTEM FOR CONVERTING A WEB-SHAPED STARTING MATERIAL INTO PACKAGING BAGS

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FR2229246A5 (en) * 1973-05-03 1974-12-06 Reed International Ltd
GB2097766A (en) * 1981-04-30 1982-11-10 Jagenberg Werke Ag Web-introduction apparatus on winding machines

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DE2413614C3 (en) * 1974-03-21 1978-08-10 Elring Dichtungswerke Kg, 7417 Dettingen Multi-channel nozzle for workpiece transport of small parts
DE3102894C2 (en) * 1981-01-29 1983-01-20 Jagenberg-Werke AG, 4000 Düsseldorf Device for the separate winding of lengthways divided webs
DE3820846A1 (en) * 1988-06-21 1989-12-28 Jagenberg Ag METHOD AND DEVICE FOR APPROACHING THE START OF A MATERIAL RAIL, IN PARTICULAR A PAPER RAIL, FROM A BOTTOM OF A ROLLER MACHINE ROLL

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229246A5 (en) * 1973-05-03 1974-12-06 Reed International Ltd
GB2097766A (en) * 1981-04-30 1982-11-10 Jagenberg Werke Ag Web-introduction apparatus on winding machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741103A2 (en) * 1995-05-05 1996-11-06 Maschinenfabrik Wifag Device for transferring the leading end of a material web in a rotary
EP0741103A3 (en) * 1995-05-05 1997-10-15 Wifag Maschf Device for transferring the leading end of a material web in a rotary
WO1999028227A1 (en) * 1997-12-01 1999-06-10 Valmet Corporation Change device of a reel-up and method for changing a roll
DE10338781A1 (en) * 2003-08-23 2005-03-17 Voith Paper Patent Gmbh Method for transferring material web running over winding rollers involves separating web along single continuous separation line and using air stream to transfer and guide it to winding core
IT202100014702A1 (en) * 2021-06-07 2022-12-07 A Celli Paper Spa UNWINDER FOR TAP MATERIAL WITH SYSTEMS TO REDUCE THE DYNAMIC VACUUM DURING THE UNWIND AND METHOD
WO2022258504A1 (en) * 2021-06-07 2022-12-15 A.Celli Paper S.P.A. Unwinder for web material, provided with systems for reducing dynamic vacuum during unwinding, and related method

Also Published As

Publication number Publication date
FI95684B (en) 1995-11-30
FI95684C (en) 1996-03-11
DE3820846A1 (en) 1989-12-28
CA1333917C (en) 1995-01-10
EP0347573B1 (en) 1993-03-10
JPH0243153A (en) 1990-02-13
EP0347573A3 (en) 1990-11-07
ATE86585T1 (en) 1993-03-15
US5328136A (en) 1994-07-12
ES2039745T3 (en) 1993-10-01
FI893015A0 (en) 1989-06-20
DE58903696D1 (en) 1993-04-15
DE3820846C2 (en) 1990-03-29
FI893015A (en) 1989-12-22

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