EP1053197B1 - Method and device for reducing slip after changing a flying reel - Google Patents

Method and device for reducing slip after changing a flying reel Download PDF

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Publication number
EP1053197B1
EP1053197B1 EP99907406A EP99907406A EP1053197B1 EP 1053197 B1 EP1053197 B1 EP 1053197B1 EP 99907406 A EP99907406 A EP 99907406A EP 99907406 A EP99907406 A EP 99907406A EP 1053197 B1 EP1053197 B1 EP 1053197B1
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EP
European Patent Office
Prior art keywords
web
paper
flap
knife
suction
Prior art date
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Expired - Lifetime
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EP99907406A
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German (de)
French (fr)
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EP1053197A1 (en
Inventor
Ernst Klas
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Vits Maschinenbau GmbH
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Vits Maschinenbau GmbH
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Publication of EP1053197A1 publication Critical patent/EP1053197A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/10Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/107Processing the trailing end of the replaced web after splicing operation, e.g. rewinding it
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/46Splicing
    • B65H2301/461Processing webs in splicing process
    • B65H2301/4615Processing webs in splicing process after splicing
    • B65H2301/46152Processing webs in splicing process after splicing cutting off tail after (flying) splicing

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a device suitable for carrying out this method according to Preamble of claim 6.
  • the so-called "adhesive flag" Section of the old sheet from the glue tip to the severed end one have the specified length so that when the adhesive flag passes through the Printing press no malfunctions occur.
  • the flags in the downstream processing stations can cause interference even then. if they're all one have a uniform prescribed length. Since the cut always only with one by the inertia of the separator and by the cycle times of the Control-related delay occurs, the flag can not be as short be cut off. For example, B. the delay time 10 ms and the web speed 15 m / s, the flag is at least 150 mm long.
  • the inventors Based on the knowledge that the creation of a disturbing flag with the today's technical means can hardly be avoided. the inventors have the Task given to specify a procedure with which the flag is subsequently added to a innocuous dimension is shortened before going into downstream processing stations arrives. It is also part of the task to carry out the to create suitable devices for new processes.
  • the first part of the task is characterized by the characteristics of the Claim 1 solved, the second part by the characterizing features of Claim 6. Further advantageous features of the invention are the subject of dependent claims.
  • FIG. 1 is a coming from a reel changer, not shown Paper web 1, on which a flag 2 still hangs, in the manner of a deflection roller 3 led that the flag 2 on the outside, d. H. on that from the center of curvature facing away.
  • the paper web 1 wraps around the deflection roller 3 in an angular range of approximately 180 °. Then she comes to one Roll 4, is redirected there and approximately parallel to the direction in which it runs to the pulley 3, continued, z. B. to a web press.
  • a knife 7 In a holder 6 arranged parallel to the deflection roller 3 there is a knife 7 attached, the cutting edge in the wrapping area close to the outer surface the pulley 3 reaches. Between the cutting edge of the knife 7 and the The lateral surface of the deflection roller 3 is only a small distance, for. B. about 2 mm.
  • the cutting edge of the knife 7 is preferably serrated and extends over the entire working width. It points to an essentially tangential, the movement the paper web 1 in the opposite direction.
  • the device works as follows: As soon as the approach of the flag 2 with high speed, e.g. B. 15 m / s, the pass line 10 has passed, the Flag on the one hand by the centrifugal force, on the other hand by the opposing resistance of the ambient air starts to move, which is similar to the movement of a whip string.
  • the flag 2 from behind Blowing nozzles 8, 9 acted upon by air blasts, the speed of which is significantly greater is as the speed of the paper web 1. They support the erecting Effect of centrifugal force and separate the free end of the flag 2 from the Paper web 1. This is at least approximately radially aligned and this way it reaches the cutting edge of knife 7. There it is except for one trimmed insignificant rest of a few mm.
  • FIG. 2 differs from that shown in FIG. 1 illustrated embodiment in that the holder 6 of the knife 7 a suction box 11 is attached. Its interior is not shown Suction device connected. It has a suction slot 12, which is immediate is located next to the knife 7.
  • the deflection roller 3 is an endless one circumferential suction belt 13 assigned.
  • the active run of the suction belt runs at a distance of about 20 to 60 mm parallel to a tangent that the Sheath of the deflection roller 3 in the looping area on a shortly before Cutting edge of the knife 7 touches the point.
  • a suction box in the usual way arranged, which is open on the side facing the active strand.
  • the flag 2 under the action of the centrifugal force and the Blow nozzles 8, 9 emerging air blasts with their free end from the at the Deflection roller 3 adjacent paper web 1 separated and against the active strand 14 of the suction belt 13 flung.
  • the flag is held there by suction.
  • the suction belt 14 is driven at a speed that is higher than the peripheral speed of the deflecting roller 3 Flag 2 pulled over the knife, so that a safe cut in immediate Proximity of the approach of the flag 2 is guaranteed.
  • the suction belt 13 can also run at a speed that is lower than the peripheral speed of the deflection roller 3. In this case the free end of the flag 2 is braked and the flag 2 is kept taut. This also facilitates the exact cutting of the flag.
  • Suction belt 13 is replaced by a rotating roller 15. It has a perforated one Jacket and is connected to a suction device, not shown. in the A shielding plate 16, which is only one, is arranged inside the roller 15 Suction zone 17 can freely, which extends over an angular range of around 60 ° and approximately the middle part of the looping area of the deflection roller 3 opposite.
  • the jacket of the roller 15 can be used with a friction-increasing Covering be provided, for. B. with a rubber coating.
  • the roller 15 has an impermeable, preferably rubberized coat.
  • the shield plate 16 is missing, as well of course the connection to a suction device.
  • the roller 15 acts only as a support and conveyor for the Flag 2. You can with the pulley 3 in terms of the peripheral speed be synchronized, but it can also lead or lag. In any case, she wears contribute to the flag 2 in a reproducible, favoring the cut Position the knife 7.
  • the exemplary embodiment in FIG. 5 has two deflection rollers 3a, 3b, the Deflection roller 3a is connected upstream of the deflection roller 3b in the goods run.
  • the paper web 1 wraps around the two deflection rollers 3a, 3b each in an angular range of approximately 90 °, so that it is opposite to the downstream guide roller 3b Direction is performed in which it is fed to the upstream deflection roller 3a becomes.
  • the Paper web Between the deflecting rollers 3a, 3b rotating in the same direction, the Paper web a straight line section 18. This is adjacent Suction box 19 arranged with perforated suction wall 20.
  • the suction wall is that Paper web strand turned, which just the straight line section 18th passes.
  • the distance between the paper web 1 and the suction wall 20 is about 20 to 50 mm.
  • a blowing nozzle 9 arranged, the blow jet in the gusset between the guide roller 3a and Suction wall 20 is directed.
  • a Knife 7 arranged in addition to the downstream guide roller 3b.
  • the flag 2 is separated from the Paper web 1 on the upstream deflection roller 3a by centrifugal force, supported by the effect of the air blast emanating from the blowing nozzle 9.
  • the free end of the flag 2 is held on the suction wall. This will make the Flag 2 fed to the knife 7 in the streamlined state.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 und eine zur Durchführung dieses Verfahrens geeignete Vorrichtung gemäß dem Oberbegriff des Anspruchs 6.The invention relates to a method according to the preamble of claim 1 and a device suitable for carrying out this method according to Preamble of claim 6.

Kontinuierlich arbeitende Papierverarbeitungsmaschinen, insbesondere Rollenrotationsmaschinen, werden mit Papierbahnen beschickt, die von Rollen abgewickelt werden. Wenn eine Rolle zu Ende geht, wird sie durch eine neue Rolle ersetzt, ohne daß die Verarbeitungsmaschine stillgesetzt wird. Es sind Rollenwechsler bekannt, die mit dem sogenannten "fliegenden Rollenwechsel" arbeiten. Dabei wird der Anfang einer in Wartestellung befindlichen neuen Rolle zunächst mit einer Klebspitze versehen. Dann wird die neue Rolle in Rotation versetzt und auf eine Umfangsgeschwindigkeit gebracht, die mit der Geschwindigkeit der von der fast leeren Rolle ablaufenden Bahn synchronisiert ist. Die Bahn wird im richtigen Zeitpunkt an die neue Rolle angedrückt, so daß sie diese im Bereich der Klebspitze berührt. Dadurch wird der Anfang der neuen Bahn an die ablaufende Bahn angeklebt. Die ablaufende Bahn wird kurz hinter der Klebstelle abgetrennt.Continuously working paper processing machines, in particular reel-rotating machines, are loaded with paper webs, that of rolls be handled. When a role ends, it becomes a new role replaced without stopping the processing machine. They are role changers known who work with the so-called "flying role change". This is the beginning of a new role that is waiting provided with an adhesive tip. Then the new role is rotated and brought to a peripheral speed which is at the speed of the almost empty roll running web is synchronized. The train is in pressed at the right time on the new role, so that it in the area of Touch tip touches. As a result, the beginning of the new path will be at the end of the run Web glued. The running web is cut shortly behind the glue point.

Gemäß DE 26 19 236 C3, in der ein Rollenwechsler mit der zugehörigen Steuerung beschrieben wird, soll der als sogenannte "Klebefahne" bezeichnete Abschnitt der alten Bahn von der Klebspitze bis zum abgetrennten Ende eine vorgegebene Länge aufweisen, damit beim Durchlauf der Klebfahne durch die Druckmaschine keine Störungen auftreten.According to DE 26 19 236 C3, in which a reel changer with the associated one Control is described, the so-called "adhesive flag" Section of the old sheet from the glue tip to the severed end one have the specified length so that when the adhesive flag passes through the Printing press no malfunctions occur.

Es hat sich aber gezeigt, daß die Fahnen in den nachgeschalteten Verarbeitungsstationen auch dann Störungen verursachen können. wenn sie alle eine gleichmäßige vorgeschriebene Länge haben. Da der Schnitt immer erst mit einer durch die träge Masse der Trennvorrichtung und durch die Zykluszeiten der Steuerung bedingten Verzögerung erfolgt, kann die Fahne nicht beliebig kurz abgeschnitten werden. Beträgt z. B. die Verzögerungszeit 10 ms und die Bahngeschwindigkeit 15 m/s, so ist die Fahne mindestens 150 mm lang.However, it has been shown that the flags in the downstream processing stations can cause interference even then. if they're all one have a uniform prescribed length. Since the cut always only with one by the inertia of the separator and by the cycle times of the Control-related delay occurs, the flag can not be as short be cut off. For example, B. the delay time 10 ms and the web speed 15 m / s, the flag is at least 150 mm long.

Gemäß DE 29 11 268 A1, die einen ähnlichen Rollenwechsler beschreibt und die Merkmale des Oberbegriffs von Anspruch 1 bzw. 6 aufweist, ist man bei der non stop Abwicklung von Warenbahnen bestrebt, die Fahne möglichst kurz zu halten, weil sie für die weitere Verarbeitung störend sein kann. Diese Aufgabe wird gemäß der angegebenen Druckschrift dadurch gelöst, daß auf der neuen Rolle hinter dem klebfähigen Bereich eine schräg über die Warenbahn verlaufende, als Trennelement dienende Reißleine gespannt wird, die mit einem Mitnehmer versehen ist. Dieser bleibt beim Andrücken der Papierbahn an die neue Rolle an der Andrückwalze haften und aktiviert die Reißleine, so daß sie die Papierbahn durchtrennt Damit wird es möglich, die ablaufende Papierbahn ohne Fahne an die neue Warenbahn anzukleben.According to DE 29 11 268 A1, which describes a similar reel changer and has the features of the preamble of claims 1 and 6, respectively in the non-stop handling of webs, the flag should be as short as possible hold because it can be disruptive for further processing. This task is solved according to the specified document in that on the new Roll angled behind the adhesive area over the web running, serving as a separating cord is tensioned with a Carrier is provided. This remains when the paper web is pressed against the new one Adhere to the pressure roller and activates the rip cord so that it Cut paper web This makes it possible to run the paper web without Stick the flag on the new web.

Die Praxis hat aber gezeigt, daß der Aufwand der Rollenvorbereitung sowie die Kontrolle der Reißleine nach der Klebung erheblichen Aufwand bereiten, so daß das Verfahren sich nicht durchsetzen konnte.Practice has shown, however, that the effort involved in preparing roles and the Checking the rip cord after the glue is a lot of work, so that the procedure could not prevail.

Ausgehend von der Erkenntnis, daß die Entstehung einer störenden Fahne mit den heutigen technischen Mitteln kaum zu vermeiden ist. haben sich die Erfinder die Aufgabe gestellt, ein Verfahren anzugeben, mit dem die Fahne nachträglich auf ein unschädliches Maß verkürzt wird, bevor sie in nachgeschaltete Verarbeitungsstationen gelangt. Zu der gestellten Aufgabe gehört es auch, zur Durchführung des neuen Verfahrens geeignete Vorrichtungen zu schaffen.Based on the knowledge that the creation of a disturbing flag with the today's technical means can hardly be avoided. the inventors have the Task given to specify a procedure with which the flag is subsequently added to a innocuous dimension is shortened before going into downstream processing stations arrives. It is also part of the task to carry out the to create suitable devices for new processes.

Der erste Teil der Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst, der zweite Teil durch die kennzeichnenden Merkmale des Anspruchs 6. Weitere vorteilhafte Merkmale der Erfindung sind Gegenstand der abhängigen Ansprüche.The first part of the task is characterized by the characteristics of the Claim 1 solved, the second part by the characterizing features of Claim 6. Further advantageous features of the invention are the subject of dependent claims.

Die Zeichnung dient zur Erläuterung der Erfindung anhand von schematisch dargestellten Ausführungsbeispielen.The drawing serves to explain the invention with reference to schematically shown Embodiments.

Gemäß Figur 1 wird eine von einem nicht dargestellten Rollenwechsler kommende Papierbahn 1, an der noch eine Fahne 2 hängt, in der Weise über eine Umlenkrolle 3 geführt, daß sich die Fahne 2 auf der Außenseite, d. h. auf der vom Krümmungsmittelpunkt abgewandten Seite befindet. Die Papierbahn 1 umschlingt die Umlenkrolle 3 in einem Winkelbereich von etwa 180°. Anschließend gelangt sie zu einer Rolle 4, wird dort abermals umgelenkt und etwa parallel zu der Richtung, mit der sie der Umlenkrolle 3 zuläuft, weitergeführt, z. B. zu einer Rollenrotationsmaschine.According to Figure 1 is a coming from a reel changer, not shown Paper web 1, on which a flag 2 still hangs, in the manner of a deflection roller 3 led that the flag 2 on the outside, d. H. on that from the center of curvature facing away. The paper web 1 wraps around the deflection roller 3 in an angular range of approximately 180 °. Then she comes to one Roll 4, is redirected there and approximately parallel to the direction in which it runs to the pulley 3, continued, z. B. to a web press.

In einem parallel zur Umlenkrolle 3 angeordneten Halter 6 ist ein Messer 7 befestigt, dessen Schneide im Umschlingungsbereich bis nah an die Mantelfläche der Umlenkrolle 3 heranreicht. Zwischen der Schneide des Messers 7 und der Mantelfläche der Umlenkrolle 3 besteht nur ein geringer Abstand, z. B. etwa 2 mm. Die Schneide des Messers 7 ist vorzugsweise gezackt und erstreckt sich über die gesamte Arbeitsbreite. Sie weist in eine im wesentlich tangentiale, der Bewegung der Papierbahn 1 entgegengesetzte Richtung.In a holder 6 arranged parallel to the deflection roller 3 there is a knife 7 attached, the cutting edge in the wrapping area close to the outer surface the pulley 3 reaches. Between the cutting edge of the knife 7 and the The lateral surface of the deflection roller 3 is only a small distance, for. B. about 2 mm. The cutting edge of the knife 7 is preferably serrated and extends over the entire working width. It points to an essentially tangential, the movement the paper web 1 in the opposite direction.

In der Nähe der Umlenkrolle 3 sind zwei Blasdüsen 8, 9, die mit je einem Düsenschlitz oder mit einer Reihe von Düsenöffnungen versehen sind, so angeordnet, daß die austretenden Düsenstrahlen die Mantelfläche der Umlenkrolle 3 in dem Teil des Umschlingungsbereichs streifen, der sich zwischen der Auflauflinie 10 der Papierbahn 1 und der Schneide des Messers 7 befindet.Near the deflection roller 3 are two blowing nozzles 8, 9, each with one Nozzle slot or are provided with a number of nozzle openings, so arranged that the emerging jet streams the outer surface of the guide roller 3 graze in the part of the wrapping area that is between the Ramp line 10 of the paper web 1 and the cutting edge of the knife 7 is located.

Die Vorrichtung arbeitet folgendermaßen: Sobald der Ansatz der Fahne 2 mit hoher Geschwindigkeit, z. B. 15 m/s, die Auflauflinie 10 passiert hat, wird die Fahne einerseits durch die Zentrifugalkraft, andererseits durch den entgegengerichteten Widerstand der Umgebungsluft in eine Bewegung versetzt, die der Bewegung einer Peitschenschnur ähnlich ist. Bevor der Ansatz der Fahne 2 die Schneide des Messers 7 erreicht, wird die Fahne 2 von hinten aus den Blasdüsen 8, 9 mit Luftstößen beaufschlagt, deren Geschwindigkeit deutlich größer ist als die Geschwindigkeit der Papierbahn 1. Sie unterstützen die aufrichtende Wirkung der Zentrifugalkraft und separieren das freie Ende der Fahne 2 von der Papierbahn 1. Diese wird dadurch zumindest annähemd radial ausgerichtet und gelangt so zu der Schneide des Messers 7. Dort wird sie bis auf einen unbedeutenden Rest von wenigen mm abgeschnitten. The device works as follows: As soon as the approach of the flag 2 with high speed, e.g. B. 15 m / s, the pass line 10 has passed, the Flag on the one hand by the centrifugal force, on the other hand by the opposing resistance of the ambient air starts to move, which is similar to the movement of a whip string. Before the approach of the flag 2 reaches the cutting edge of the knife 7, the flag 2 from behind Blowing nozzles 8, 9 acted upon by air blasts, the speed of which is significantly greater is as the speed of the paper web 1. They support the erecting Effect of centrifugal force and separate the free end of the flag 2 from the Paper web 1. This is at least approximately radially aligned and this way it reaches the cutting edge of knife 7. There it is except for one trimmed insignificant rest of a few mm.

In den weiteren Figuren bezeichnen die Bezugszeichen, die bereits in Figur 1 vorkommen, die gleichen Teile wie in Figur 1. Daher ist eine emeute Beschreibung dieser Teile entbehrlich.In the further figures, the reference numerals designate the ones already in FIG. 1 occur, the same parts as in Figure 1. Therefore, a new description these parts can be dispensed with.

Das Ausführungsbeispiel gemäß Figur 2 unterscheidet sich von dem durch Figur 1 illustrierten Ausführungsbeispiel dadurch, daß die Halterung 6 des Messers 7 an einem Saugkasten 11 befestigt ist. Sein Innenraum ist mit einer nicht dargestellten Absaugvorrichtung verbunden. Er hat einen Saugschlitz 12, der sich unmittelbar neben dem Messer 7 befindet.The exemplary embodiment according to FIG. 2 differs from that shown in FIG. 1 illustrated embodiment in that the holder 6 of the knife 7 a suction box 11 is attached. Its interior is not shown Suction device connected. It has a suction slot 12, which is immediate is located next to the knife 7.

Im Betrieb wird, sobald sich die Fahne 2 dem Saugkasten 11 annähert, im Inneren des Saugkastens 11 ein Unterdruck erzeugt, so daß durch den Saugschlitz 12 Luft eingesaugt wird. Dadurch wird der Luftwiderstand, der dem radialen Aufrichten der Fahne 2 entgegenwirkt, vermindert und das Abschneiden der Fahne 2 erleichtert.In operation, as soon as the flag 2 approaches the suction box 11, inside of the suction box 11 generates a negative pressure so that 12 air through the suction slot is sucked in. This will increase the air resistance caused by the radial erection of the Counteracts flag 2, reduced and cutting off flag 2 facilitated.

Bei dem Ausführungsbeispiel gemäß Figur 3 ist der Umlenkrolle 3 ein endloses umlaufendes Saugband 13 zugeordnet. Das aktive Trum des Saugbandes verläuft in einem Abstand von etwa 20 bis 60 mm parallel zu einer Tangente, die den Mantel der Umlenkrolle 3 im Umschlingungsbereich an einem kurz vor der Schneide des Messers 7 befindlichen Punkt berührt. Zwischen dem aktiven Trum 14 und dem anderen, rücklaufenden Trum ist in üblicher Weise ein Saugkasten angeordnet, der an der dem aktiven Trum zugekehrten Seite offen ist.In the exemplary embodiment according to FIG. 3, the deflection roller 3 is an endless one circumferential suction belt 13 assigned. The active run of the suction belt runs at a distance of about 20 to 60 mm parallel to a tangent that the Sheath of the deflection roller 3 in the looping area on a shortly before Cutting edge of the knife 7 touches the point. Between the active run 14 and the other, returning run is a suction box in the usual way arranged, which is open on the side facing the active strand.

Im Betrieb wird die Fahne 2 unter der Wirkung der Zentrifugalkraft und der aus den Blasdüsen 8, 9 austretenden Luftstöße mit ihrem freien Ende von der an der Umlenkrolle 3 anliegenden Papierbahn 1 separiert und gegen das aktive Trum 14 des Saugbandes 13 geschleudert. Dort wird die Fahne durch Saugwirkung festgehalten.In operation, the flag 2 under the action of the centrifugal force and the Blow nozzles 8, 9 emerging air blasts with their free end from the at the Deflection roller 3 adjacent paper web 1 separated and against the active strand 14 of the suction belt 13 flung. The flag is held there by suction.

Vorzugsweise wird das Saugband 14 mit einer Geschwindigkeit angetrieben, die höher liegt als die Umfangsgeschwindigkeit der Umlenkrolle 3. Dadurch wird die Fahne 2 über das Messer gezogen, so daß ein sicherer Schnitt in unmittelbarer Nähe des Ansatzes der Fahne 2 gewährleistet ist. Preferably, the suction belt 14 is driven at a speed that is higher than the peripheral speed of the deflecting roller 3 Flag 2 pulled over the knife, so that a safe cut in immediate Proximity of the approach of the flag 2 is guaranteed.

Das Saugband 13 kann aber auch mit einer Geschwindigkeit umlaufen, die niedriger ist als die Umfangsgeschwindigkeit der Umlenkrolle 3. In diesem Falle wird das freie Ende der Fahne 2 gebremst, und die Fahne 2 wird straff gehalten. Dadurch wird ebenfalls das exakte Abschneiden der Fahne erleichtert.The suction belt 13 can also run at a speed that is lower than the peripheral speed of the deflection roller 3. In this case the free end of the flag 2 is braked and the flag 2 is kept taut. This also facilitates the exact cutting of the flag.

Von dem soeben beschriebenen Ausführungsbeispiel gemäß Figur 3 unterscheidet sich das ein Figur 4 veranschaulichte Ausführungsbeispiel dadurch, daß das Saugband 13 durch eine rotierende Walze 15 ersetzt ist. Sie hat einen perforierten Mantel und ist an eine nicht dargestellte Absaugvorrichtung angeschlossen. Im Inneren der Walze 15 ist ein Abschirmblech 16 angeordnet, welches lediglich eine Saugzone 17 frei läßt, die sich über einen Winkelbereich von rund 60° erstreckt und etwa dem mittleren Teil des Umschlingungsbereiches der Umlenkrolle 3 gegenüberliegt. Der Mantel der Walze 15 kann mit einem reibungserhöhenden Belag versehen sein, z. B. mit einer Gummierung.It differs from the exemplary embodiment according to FIG. 3 just described 4 is an embodiment illustrated in that the Suction belt 13 is replaced by a rotating roller 15. It has a perforated one Jacket and is connected to a suction device, not shown. in the A shielding plate 16, which is only one, is arranged inside the roller 15 Suction zone 17 can freely, which extends over an angular range of around 60 ° and approximately the middle part of the looping area of the deflection roller 3 opposite. The jacket of the roller 15 can be used with a friction-increasing Covering be provided, for. B. with a rubber coating.

Die Funktion ist der Funktion des Ausführungsbeispiels der Figur 3 so ähnlich, daß sich weitere Ausführungen erübrigen. Es bleibt lediglich zu erwähnen, daß durch den reibungserhöhenden Belag in Verbindung mit der Saugwirkung die Fahne 2 unverrückbar auf der Walze 15 festgehalten wird.The function is so similar to the function of the embodiment of Figure 3 that no further explanations are necessary. All that remains to be said is that by the friction-increasing surface in connection with the suction effect the flag 2 is held immovably on the roller 15.

Bei einem vereinfachten Ausführungsbeispiel hat die Walze 15 einen undurchlässigen, vorzugsweise gummierten Mantel. Das Abschirmblech 16 fehlt, ebenso natürlich der Anschluß an eine Absaugvorrichtung.In a simplified embodiment, the roller 15 has an impermeable, preferably rubberized coat. The shield plate 16 is missing, as well of course the connection to a suction device.

In diesem Falle wirkt die Walze 15 lediglich als Stütz- und Förderorgan für die Fahne 2. Sie kann mit der Umlenkrolle 3 hinsichtlich der Umfangsgeschwindigkeit synchronisiert sein, sie kann aber auch vor- oder nacheilen. In jedem Falle trägt sie dazu bei, die Fahne 2 in einer reproduzierbaren, den Schnitt begünstigenden Position dem Messer 7 zuzuführen.In this case, the roller 15 acts only as a support and conveyor for the Flag 2. You can with the pulley 3 in terms of the peripheral speed be synchronized, but it can also lead or lag. In any case, she wears contribute to the flag 2 in a reproducible, favoring the cut Position the knife 7.

Das Ausführungsbeispiel der Figur 5 weist zwei Umlenkrollen 3a, 3b auf, wobei die Umlenkrolle 3a der Umlenkrolle 3b im Warenlauf vorgeschaltet ist. Die Papierbahn 1 umschlingt die beiden Umlenkrollen 3a, 3b je in einem Winkelbereich von etwa 90°, so daß sie von der nachgeschalteten Umlenkrolle 3b entgegengesetzt zu der Richtung ab geführt wird, in der sie der vorgeschalteten Umlenkrolle 3a zugeführt wird. Zwischen den gleichsinnig rotierenden Umlenkrollen 3a, 3b durchläuft die Papierbahn einen geradlinigen Streckenabschnitt 18. Diesem benachbart ist ein Saugkasten 19 mit perforierter Saugwand 20 angeordnet. Die Saugwand ist dem Papierbahntrum zugekehrt, welches gerade den geradlinigen Streckenabschnitt 18 durchläuft. Der Abstand zwischen der Papierbahn 1 und der Saugwand 20 beträgt etwa 20 bis 50 mm. Neben der vorgeschalteten Umlenkrolle 3a ist eine Blasdüse 9 angeordnet, deren Blasstrahl in den Zwickel zwischen der Umlenkrolle 3a und der Saugwand 20 gerichtet ist. Neben der nachgeschalteten Umlenkrolle 3b ist ein Messer 7 angeordnet.The exemplary embodiment in FIG. 5 has two deflection rollers 3a, 3b, the Deflection roller 3a is connected upstream of the deflection roller 3b in the goods run. The paper web 1 wraps around the two deflection rollers 3a, 3b each in an angular range of approximately 90 °, so that it is opposite to the downstream guide roller 3b Direction is performed in which it is fed to the upstream deflection roller 3a becomes. Between the deflecting rollers 3a, 3b rotating in the same direction, the Paper web a straight line section 18. This is adjacent Suction box 19 arranged with perforated suction wall 20. The suction wall is that Paper web strand turned, which just the straight line section 18th passes. The distance between the paper web 1 and the suction wall 20 is about 20 to 50 mm. In addition to the upstream deflection roller 3a, there is a blowing nozzle 9 arranged, the blow jet in the gusset between the guide roller 3a and Suction wall 20 is directed. In addition to the downstream guide roller 3b is a Knife 7 arranged.

Bei diesem Ausführungsbeispiel erfolgt die Separierung der Fahne 2 von der Papierbahn 1 an der vorgeschalteten Umlenkrolle 3a durch Zentrifugalkraft, unterstützt durch die Wirkung des von der Blasdüse 9 ausgehenden Luftstoßes. Das freie Ende der Fahne 2 wird an der Saugwand festgehalten. Dadurch wird die Fahne 2 in gestrafftem Zustand dem Messer 7 zugeführt.In this embodiment, the flag 2 is separated from the Paper web 1 on the upstream deflection roller 3a by centrifugal force, supported by the effect of the air blast emanating from the blowing nozzle 9. The free end of the flag 2 is held on the suction wall. This will make the Flag 2 fed to the knife 7 in the streamlined state.

Claims (15)

  1. A method of shortening the flap (2) after changing a flying reel, in which a continuous web of paper (1) which is drawn off from a reel on the point of running out and fed to a processing station is pressed against the glued start of a new reel synchronised with the continuous paper web, and then cut after a short interval,
    characterised in that the web of paper (1) is guided by a curvature of a guide roller (3, 3b), the mid-point of the said curvature being positioned on the side of the web (1) facing away from the flap (2), and that the flap (2), which is lifted by centrifugal force, is cut off in the vicinity of the curved stretch.
  2. A method according to Claim 1, characterised in that a blast of air is blown in between web of paper (1) and flap (2) in the direction of movement of the web.
  3. A method according to Claim 1 or 2, characterised in that the flap (2) is drawn by suction on the side facing away from the curvature mid-point.
  4. A method according to one of Claims 1 to 3, characterised in that the flap (2) is braked by friction against a surface which is at rest or being moved more slowly than the web of paper (1).
  5. A method according to Claim 1 to 3, characterised in that the flap (2) is accelerated by frictional engagement with a surface which is being moved at a greater speed than the web of paper (1).
  6. A device for shortening the flap (2) behind an unwinding device which is equipped with instruments for changing the flying reel, during which a continuous web of paper (1), which is drawn off from a reel on the point of running out and fed for processing, is pressed against the glued start of a new reel synchronised with the continuous paper web (1) and then cut after a short interval,
    characterised by a guide roller (3, 3b) and a knife (7) arranged at a short distance from the surface of the guide roller (3, 3b), the web of paper being guided by the curvature of the guide roller (3, 3b), the mid-point of the said curvature being positioned on the side of the web facing away from the flap, and that the flap, which is lifted by centrifugal force, is cut off by the knife (7) in the vicinity of the curved stretch.
  7. A device according to Claim 6, characterised in that the blade of the knife (7) is serrated.
  8. A device according to Claim 6 or 7, characterised in that at least one blast nozzle (8, 9) with blast openings for blowing a jet of air in the direction of movement of the web of paper (1) is arranged at a distance from the blade of the knife (7).
  9. A device according to one of Claims 6 to 8, characterised by a suction box (11) with a suction slit (12) positioned directly next to the blade of the knife (7).
  10. A device according to one of Claims 6 to 9, characterised in that a suction band (13) moving substantially tangentially to the guide roller (3) is arranged in front of the blade of the knife (7) at a distance from the web of paper (1).
  11. A device according to Claim 10, characterised in that the suction band (13) rotates at a speed greater than the circumferential speed of the guide roller (3).
  12. A device according to one of Claims 6 to 9, characterised in that a drum (15) is arranged in front of the blade of the knife (7) at a distance from and parallel to the guide roller (3).
  13. A device according to Claim 12, characterised in that the surface of the drum (15) is provided with a friction-enhancing coating.
  14. A device according to Claim 12 or 13, characterised in that the surface of the drum (15) is perforated and that the interior of the drum (15) is connected to a suction device.
  15. A device according to one of Claims 6, 7 or 9, characterised by two guide rollers (3a, 3b) between which the web of paper (1) passes through a straight section (18), and by a suction box (19) with perforated suction wall (20) which is positioned substantially along the straight section of the web of paper (1) and at a distance therefrom, and by a knife (7) which is arranged a short distance from the guide roller (3b) connected downstream thereof.
EP99907406A 1998-02-05 1999-01-23 Method and device for reducing slip after changing a flying reel Expired - Lifetime EP1053197B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19804415A DE19804415C1 (en) 1998-02-05 1998-02-05 Method and device for shortening the flag after a flying roll change
DE19804415 1998-02-05
PCT/EP1999/000436 WO1999040004A1 (en) 1998-02-05 1999-01-23 Method and device for reducing slip after changing a flying reel

Publications (2)

Publication Number Publication Date
EP1053197A1 EP1053197A1 (en) 2000-11-22
EP1053197B1 true EP1053197B1 (en) 2002-01-02

Family

ID=7856645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99907406A Expired - Lifetime EP1053197B1 (en) 1998-02-05 1999-01-23 Method and device for reducing slip after changing a flying reel

Country Status (7)

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US (1) US6547179B1 (en)
EP (1) EP1053197B1 (en)
JP (1) JP3418176B2 (en)
CA (1) CA2319410A1 (en)
DE (2) DE19804415C1 (en)
ES (1) ES2169945T3 (en)
WO (1) WO1999040004A1 (en)

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DE19931797C1 (en) * 1999-07-08 2000-12-07 Vits Maschinenbau Gmbh Paper flap trimming method for flying reel changing in continuous paper processing machine uses air jet for blowing trailing flap against edge of trimming blade
DE10041969B4 (en) * 2000-08-25 2012-03-29 Goss Contiweb B.V. Method and device for shortening the flag following a roll change
DE10058458B4 (en) 2000-11-24 2005-12-08 Koenig & Bauer Ag Device for connecting two webs of material
DE10138737A1 (en) * 2001-08-07 2003-02-20 Roland Man Druckmasch Device for backing off a paper web of a printing machine following a tear in the paper has a simple design that does not require downstream rollers, cylinders, tamping tools or folding devices
US8720339B2 (en) * 2006-04-03 2014-05-13 Hewlett-Packard Indigo B.V. Web printing, web printers and related software
JP2008105808A (en) * 2006-10-25 2008-05-08 Mitsubishi Heavy Ind Ltd Printer and paper splicing method by paper feeder
WO2017189875A1 (en) 2016-04-28 2017-11-02 Lantech.Com, Llc One-way clutch arrangement for stretch wrapping machine
DK3281878T3 (en) * 2016-08-10 2018-11-12 Maschf Moellers Gmbh Device for wrapping a goods stack with a pipe cover and method for replacing the pipe foil bearing in a corresponding device
DE102016225980B4 (en) * 2016-12-22 2019-09-12 Koenig & Bauer Ag Device for cutting a material web lug hanging from a web of material to be guided through the device and web-fed printing press
DE102018108168A1 (en) * 2018-04-06 2019-10-10 Manroland Goss Web Systems Gmbh Preventing the fluttering of the adhesive banner in the foil print

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DE2023100C3 (en) * 1970-05-12 1981-08-06 Hauni-Werke Körber & Co KG, 2050 Hamburg Method and apparatus for producing a connection between a running strip and a newly provided strip
US3915399A (en) * 1974-04-01 1975-10-28 Eastman Kodak Co Apparatus and method for splicing the trailing end of an expiring web to the leading end of a new web
DE2519057C2 (en) 1975-04-29 1986-04-10 Windmöller & Hölscher, 4540 Lengerich Method and device for butt-gluing webs with on-the-fly roll changes in unwinding devices
DE2619236B2 (en) * 1976-04-30 1981-04-02 Siemens AG, 1000 Berlin und 8000 München Method of controlling the on-the-fly connection of a web from a second winding roll to one of a first winding roll
DE2911268C2 (en) * 1979-03-22 1983-09-15 Vits-Maschinenbau Gmbh, 4018 Langenfeld Device for uninterrupted unwinding of material webs
US5356496A (en) 1992-06-15 1994-10-18 The Black Clawson Company Splice tail tape-down method and apparatus
DE69300282T2 (en) 1993-12-16 1996-03-21 Tabac Fab Reunies Sa Device for joining tapes of soft material.
DE29504553U1 (en) * 1995-03-17 1995-06-14 Voith Sulzer Papiermasch Gmbh Device for stabilizing a web

Also Published As

Publication number Publication date
US6547179B1 (en) 2003-04-15
JP2002502787A (en) 2002-01-29
WO1999040004A1 (en) 1999-08-12
JP3418176B2 (en) 2003-06-16
DE19804415C1 (en) 1999-08-26
ES2169945T3 (en) 2002-07-16
CA2319410A1 (en) 1999-08-12
EP1053197A1 (en) 2000-11-22
DE59900714D1 (en) 2002-02-28

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