EP0503363A1 - Cutting and applying device for webs in a winding machine - Google Patents

Cutting and applying device for webs in a winding machine Download PDF

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Publication number
EP0503363A1
EP0503363A1 EP92103219A EP92103219A EP0503363A1 EP 0503363 A1 EP0503363 A1 EP 0503363A1 EP 92103219 A EP92103219 A EP 92103219A EP 92103219 A EP92103219 A EP 92103219A EP 0503363 A1 EP0503363 A1 EP 0503363A1
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EP
European Patent Office
Prior art keywords
web
material web
winding tube
separating
cutting
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.)
Withdrawn
Application number
EP92103219A
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German (de)
French (fr)
Inventor
Johann Baarfuesser
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Emtec Magnetics GmbH
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BASF Magnetics GmbH
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Filing date
Publication date
Application filed by BASF Magnetics GmbH filed Critical BASF Magnetics GmbH
Publication of EP0503363A1 publication Critical patent/EP0503363A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B65H19/26—Cutting-off the web running to the wound web roll

Definitions

  • the invention relates to a device for separating and reapplying an incoming material web on winding machines to a winding tube, which is driven to rotate via a shaft, the incoming material web being pressed against the winding tube by means of a deflection roller partially wrapped by the material web, and wherein the outgoing material web follows Leaving the winding tube is separated by means of a separating knife which is movable in the path of the material web and can be driven by an energy store and extends transversely to the web path, and the new web beginning is applied to the winding tube using a brush.
  • a device of the aforementioned generic type is known from DE-OS 24 18 409.
  • a deflecting roller is pressed against the web between the empty winding tube and the full roll in the running web by means of a swivel frame so that the web loops around the empty winding tube by more than half the circumference, whereupon by a toothed on the axis of the deflection roller pivoted Cutting knife, which is driven by a torsion bar, the material web is separated.
  • the separating knife carries a brush on the side facing away from the deflection roller, which brushes the web against the empty winding tube when the separating knife pivots.
  • DE-OS 22 32 336 describes a device for separating and reattaching a material web to a winding tube, with a separating element which is driven by a pneumatic or hydraulic drive via a toothed rack and a toothed segment, the running web between an empty winding tube and a Deflecting element separates, the separating element being pivoted coaxially to the winding tube and then an air box connected to the separating element pressing the start of the web against the winding tube.
  • contact systems which work with separating devices which cut on the winding tube and require special winding tubes with cutting grooves on the core.
  • core damage occurs over time due to the cutting process, which together with the grooves in the core cause deformations in the material web in the winding.
  • the invention was therefore based on the object of providing a device of the generic type mentioned at the outset which enables both a reliable severing of a running web of material and the application of the new beginning of the web to the winding tube even at high speeds, with a good cut quality and a crease-free application of the Are ensured at the beginning of the web on the winding tube.
  • the course of the path can be seen from FIGS. 1 and 2.
  • the material web (1) tapering in the direction of the arrow is brought up to the winding tube (2) by means of a swiveling deflection roller (5) over which it runs with its underside. pressed, wrapping a part of the circumference of the winding tube with its top.
  • the winding tube (2) is drivably mounted on the shaft (11).
  • the running material web (1 ') is fed to a winding roller (not shown) and wound on it until the full winding diameter is reached.
  • the device for separating and reattaching an incoming material web consists of a separating knife (3) which extends transversely to the path of the web and which is fastened to guide bands (6, 6 ') on both sides.
  • These belts can be a circulating chain or a belt, a rope or the like.
  • the circulating belts are guided over rollers or sprockets (4, 4 '), which must be freely running and easy to move and which are located in the area of the winding tube (2) outside the core tensioning device.
  • the entire device for separating and reapplying (3, 4, 4 ', 6, 6', 7) can be designed with two arms, as can be seen from FIG. 1, the two arms (15, 15 ', 16, 16') on both sides Connected to one another via joints (14, 14 ') and designed to be pivotable by means of displaceable cylinder guides (13, 13'), so that the entire separating device can be temporarily pivoted away for the purpose of turning the winding device.
  • the separation and re-application process of the material web proceeds as follows. After the full winding circumference on the winding tube has been reached, the separating device is prepared for the separating process by driving a flywheel (8) via an axis by means of the electric motor (17). 4 ') set in accelerated rotation and the cutting knife (3) onto the cutting point via the guide belts (12) which is located directly next to the circumference of the winding tube (2) in the region of the running material web (1 '). When the cutting knife (3) hits the material web (1 '), the speed of the cutting knife must be greater than the running speed of the film web.
  • the separating knife overtakes the newly formed start of the web, and the painting brush (7), which is directed radially onto the circumference of the empty tube (2), strokes the beginning of the web on the winding tube.
  • the cutting device (3) is braked again via the guide belts and the guide rollers and returned to the rest position (10), which is also the starting position. Then the full web winding can be removed from the turret winder, whereupon an empty winding tube is put in its place.
  • the separation and application device described is completely pivoted away.
  • a pressure roller (18) is pivoted onto the circumference of the winding tube (2) to be rewound, while the deflection roller (5) is pivoted away.
  • the turret winder By swiveling the turret winder through 90 ° to 180 °, depending on the number of winding cores, the positions of the winding cores are interchanged.
  • the pressure roller (18) remains pivoted on the newly created roll.
  • the separating and applying device is returned to its working position. Shortly before the new winding has reached the desired diameter, the material web is pressed against the empty winding tube (2) by the deflection roller (5) and the separating and applying device is started by the motor (17). The cutting and changing process can start again.
  • the separating knife (3) with the contact brush (7) is passed very close to the circumference of the winding tube (2) so that a good cut quality is achieved and at the same time the newly formed start of the web is securely attached to the winding tube.
  • the design of the separating device, with which the separating knife is guided over belts, makes it possible to achieve the desired separating speed by sufficient length of the acceleration path, which can still be achieved even at high running speeds of the material web.
  • the acceleration path of the cutting knife is preferably approximately the same length as the braking path.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

A device for cutting and refeeding an incoming web of material, especially on turning cutters, is described, in which a deflection roller (5) presses the web of material (1) against an empty winding pipe (2) which partially encloses the web of material and in which, as soon as it has left the winding pipe, a cutting knife (3), which extends at right angles to the course of the web and is held on both sides by guide belts, cuts through the web from its underside at the cutting point (12), and a laying brush which is fixedly connected to the cutting knife lays the resulting web end onto the winding pipe. The whole cutting device can be swivelled away, in such a way that a turning winder is used to remove a fully wound roll, mount an empty winding pipe and turn the device, in such a way that a new winding pipe can be swivelled into the operating position.

Description

Die Erfindung betrifft eine Vorrichtung zum Trennen und erneuten Anlegen einer zulaufenden Materialbahn an Wickelmaschinen auf eine Wickelhülse, die über eine Welle drehend angetrieben wird, wobei die zulaufende Materialbahn mittels einer von der Materialbahn teilweise umschlungenen Umlenkrolle an die Wickelhülse gedrückt wird und wobei die ablaufende Materialbahn nach Verlassen der Wickelhülse mittels eines in den Weg der Materialbahn bewegbaren und durch einen Kraftspeicher antreibbaren quer zum Bahnverlauf sich erstreckenden Trennmessers getrennt wird und der neue Bahnanfang mittels einer Bürste an die Wickelhülse angelegt wird.The invention relates to a device for separating and reapplying an incoming material web on winding machines to a winding tube, which is driven to rotate via a shaft, the incoming material web being pressed against the winding tube by means of a deflection roller partially wrapped by the material web, and wherein the outgoing material web follows Leaving the winding tube is separated by means of a separating knife which is movable in the path of the material web and can be driven by an energy store and extends transversely to the web path, and the new web beginning is applied to the winding tube using a brush.

Beim Aufwickeln von Materialbahnen, insbesondere durch eine Mehrfach-Wickelmaschine kommt es darauf an, die Bahn zur Vermeidung von Abfall von der fertig gewickelten Rolle möglichst schnell auf eine leere Wickelhülse umzulegen. Nach dem Quertrennen der Materialbahn soll der neue Bahnanfang faltenfrei auf die leere Wickelhülse angelegt werden. Querschneide- und Anlegevorrichtungen dieser Art sind aus dem Stand der Technik bekannt, bei denen ein quer zur Materialbahn gleitender Schlitten ein Messer quer durch die Bahn zieht und diese unmittelbar hinter oder auf der von der Bahn umschlungenen leeren Wickelhülse durchtrennt. Andere automatische Querschneide- und Anlegevorrichtungen arbeiten mit einem ortsfest gelagerten glatten oder verzahnten Schwenkmesser, welches in die zu trennende Bahn schlägt und elektromotorisch oder pneumatisch angetrieben wird. Bei derartigen Vorrichtungen besteht die Gefahr, daß das Messer aufgrund der geringen Startgeschwindigkeit auf dem kurzen Weg bis zur Schnittstelle keine genügend hohe Schnittgeschwindigkeit erreicht, so daß beim Quertrennen der Materialbahn ein Stau am neuen Bahnanfang entsteht und sich infolgedessen Falten an der Materialbahn auf der Wickelhülse bilden, die sich beim Aufeinanderwickeln mehrerer Lagen als Durchdrücke schädlich für die Qualität der Materialbahn auswirken. Ferner ist bekannt, ein sicheres Anlegen des neuen Bahnanfangs an die leere Wickelhülse dadurch zu erreichen, daß auf die leere Hülse ein Klebestreifen oder Leim aufgebracht wird. Dies erfordert jedoch einen besonderen Arbeitsgang und ferner werden insbesondere bei dünnen hochempfindlichen Materialbahnen, beispielsweise Magnetbändern, mehrere Lagen infolge Durchschlagens des Klebstoffs unbrauchbar.When winding material webs, in particular by means of a multiple winding machine, it is important to fold the web as quickly as possible onto an empty winding tube to avoid waste from the finished wound roll. After the material web has been cross-cut, the new web start should be placed on the empty winding tube without any creases. Cross-cutting and application devices of this type are known from the prior art, in which a slide sliding transversely to the material web pulls a knife across the web and cuts it immediately behind or on the empty winding tube wrapped by the web. Other automatic cross cutting and feeding devices work with a stationary, smooth or toothed swivel knife, which strikes the web to be separated and is driven by an electric motor or pneumatically. With such devices, there is a risk that the knife will not reach a sufficiently high cutting speed on the short path to the interface due to the low starting speed, so that a jam when the material web is cut crosswise At the new beginning of the web, wrinkles form on the material web on the winding tube, which, when several layers are wound on top of one another, have negative effects on the quality of the material web when they are wound up. It is also known to achieve a secure application of the new start of the web to the empty winding tube in that an adhesive strip or glue is applied to the empty tube. However, this requires a special operation and furthermore, especially in the case of thin, highly sensitive material webs, for example magnetic tapes, several layers become unusable as a result of the adhesive breaking through.

Eine Vorrichtung der eingangs genannten gattungsmäßigen Art ist aus der DE-OS 24 18 409 bekannt. Dabei wird bei der ablaufenden Bahn mittels eines Schwenkrahmens eine Umlenkrolle so gegen die Bahn zwischen der leeren Wickelhülse und der vollen Rolle gedrückt, daß die Bahn die leere Wickelhülse um mehr als den halben Umfang umschlingt, worauf durch ein auf der Achse der Umlenkrolle schwenkbar gelagertes verzahntes Trennmesser, welches durch eine Drehstabfeder angetrieben wird, die Materialbahn getrennt wird. Das Trennmesser trägt auf der von der Umlenkrolle abgewandten Seite eine Bürste, die bei der Schwenkbewegung des Trennmessers die Bahn an die leere Wickelhülse anstreicht.A device of the aforementioned generic type is known from DE-OS 24 18 409. Here, a deflecting roller is pressed against the web between the empty winding tube and the full roll in the running web by means of a swivel frame so that the web loops around the empty winding tube by more than half the circumference, whereupon by a toothed on the axis of the deflection roller pivoted Cutting knife, which is driven by a torsion bar, the material web is separated. The separating knife carries a brush on the side facing away from the deflection roller, which brushes the web against the empty winding tube when the separating knife pivots.

In der DE-OS 22 32 336 wird eine Vorrichtung zum Trennen und Wiederanlegen einer Materialbahn an einer Wickelhülse beschrieben, wobei ein Trennelement, welches mit einem pneumatischen oder hydraulischen Antrieb über eine Zahnstange und ein Zahnsegment angetrieben wird, die ablaufende Bahn zwischen leerer Wickelhülse und einem Umlenkelement trennt, wobei das Trennelement koaxial zur Wickelhülse geschwenkt wird und wobei anschließend ein mit dem Trennelement verbundener Luftkasten den Bahnanfang an die Wickelhülse anpreßt.DE-OS 22 32 336 describes a device for separating and reattaching a material web to a winding tube, with a separating element which is driven by a pneumatic or hydraulic drive via a toothed rack and a toothed segment, the running web between an empty winding tube and a Deflecting element separates, the separating element being pivoted coaxially to the winding tube and then an air box connected to the separating element pressing the start of the web against the winding tube.

Weiterhin sind aus dem Stand der Technik Anlegesysteme bekannt, welche mit Trennvorrichtungen arbeiten, die auf der Wickelhülse schneiden und spezielle Wickelhülsen mit Schneidnuten am Kern erfordern. Dabei treten jedoch durch den Schneidvorgang im Laufe der Zeit Kernbeschädigungen auf, die zusammen mit den Nuten im Kern Deformationen in der Materialbahn im Wickel verursachen.Furthermore, from the prior art, contact systems are known which work with separating devices which cut on the winding tube and require special winding tubes with cutting grooves on the core. However, core damage occurs over time due to the cutting process, which together with the grooves in the core cause deformations in the material web in the winding.

Der Erfindung lag deshalb die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten gattungsmäßigen Art zu schaffen, die sowohl ein zuverlässiges Durchtrennen einer laufenden Materialbahn und das Anlegen des neuen Bahnanfangs an der Wickelhülse auch bei hohen Geschwindigkeiten ermöglicht, wobei eine gute Schnittqualität und ein faltenfreies Anlegen des Bahnanfangs an der Wickelhülse sichergestellt sind.The invention was therefore based on the object of providing a device of the generic type mentioned at the outset which enables both a reliable severing of a running web of material and the application of the new beginning of the web to the winding tube even at high speeds, with a good cut quality and a crease-free application of the Are ensured at the beginning of the web on the winding tube.

Erfindungsgemäß wurde die Aufgabe gelöst mit einer Vorrichtung mit den im kennzeichnenden Teil des Anspruchs 1 genannten Merkmalen. Weitere Einzelheiten der Erfindung gehen aus den Unteransprüchen, den Zeichnungen und der Beschreibung hervor.According to the invention the object was achieved with a device having the features mentioned in the characterizing part of claim 1. Further details of the invention emerge from the subclaims, the drawings and the description.

Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert und zwar zeigt

Figur 1
eine perspektivische Darstellung der erfindungsgemäßen Vorrichtung
Figur 2
einen Querschnitt durch die Vorrichtung vor dem Trennen der Bahn
Figur 3
die analoge Vorrichtung nach dem Trennen der Bahn.
The invention is explained in more detail below with the aid of the drawings and shows
Figure 1
a perspective view of the device according to the invention
Figure 2
a cross section through the device before separating the web
Figure 3
the analog device after separating the web.

Aus den Figuren 1 und 2 ist der Bahnverlauf erkennbar. Die in Pfeilrichtung zulaufende Materialbahn (1) wird über eine anschwenkbare Umlenkrolle (5), über die sie mit ihrer Unterseite läuft, mit ihrer Oberseite an die Wickelhülse (2) gedrückt, wobei sie einen Teil des Umfangs der Wickelhülse mit ihrer Oberseite umschlingt. Die Wickelhülse (2) ist auf der Welle (11) antreibbar gelagert. Nach Verlassen dieser Wickelhülse wird die ablaufende Materialbahn (1') einer (nicht gezeichneten) Aufwickelrolle zugeführt und auf ihr bis zum Erreichen des vollen Wickeldurchmessers aufgewickelt. Die Vorrichtung zum Trennen und erneuten Anlegen einer zulaufenden Materialbahn besteht aus einem Trennmesser (3), welches sich quer zum Bahnverlauf erstreckt und welches auf beiden Seiten an Führungsbändern (6, 6') befestigt ist. Diese Bänder können eine umlaufende Kette oder ein Riemen, ein Seil oder ähnliches sein. Die umlaufenden Bänder werden über Rollen oder Kettenräder (4, 4') geführt, welche freilaufend und leichtgängig gelagert sein müssen und die sich im Bereich der Wickelhülse (2) außerhalb der Kernspanneinrichtung befinden. Mit dem Trennmesser (3) ist eine Anlegebürste (7), die sich im rechten Winkel zum Trennmesser erstreckt, fest verbunden.The course of the path can be seen from FIGS. 1 and 2. The material web (1) tapering in the direction of the arrow is brought up to the winding tube (2) by means of a swiveling deflection roller (5) over which it runs with its underside. pressed, wrapping a part of the circumference of the winding tube with its top. The winding tube (2) is drivably mounted on the shaft (11). After leaving this winding tube, the running material web (1 ') is fed to a winding roller (not shown) and wound on it until the full winding diameter is reached. The device for separating and reattaching an incoming material web consists of a separating knife (3) which extends transversely to the path of the web and which is fastened to guide bands (6, 6 ') on both sides. These belts can be a circulating chain or a belt, a rope or the like. The circulating belts are guided over rollers or sprockets (4, 4 '), which must be freely running and easy to move and which are located in the area of the winding tube (2) outside the core tensioning device. A separating brush (7), which extends at right angles to the separating knife, is firmly connected to the separating knife (3).

Die gesamte Vorrichtung zum Trennen und Wiederanlegen (3, 4, 4', 6, 6', 7) kann zweiarmig ausgelegt sein, wie aus Figur 1 zu erkennen, wobei die zwei Arme (15, 15', 16, 16') beiderseits über Gelenke (14, 14') miteinander verbunden und durch verschiebbare Zylinderführungen (13, 13') abschwenkbar ausgeführt sind, so daß die gesamte Trenneinrichtung zum Zweck des Wendens der Wickeleinrichtung zeitweilig abgeschwenkt werden kann.The entire device for separating and reapplying (3, 4, 4 ', 6, 6', 7) can be designed with two arms, as can be seen from FIG. 1, the two arms (15, 15 ', 16, 16') on both sides Connected to one another via joints (14, 14 ') and designed to be pivotable by means of displaceable cylinder guides (13, 13'), so that the entire separating device can be temporarily pivoted away for the purpose of turning the winding device.

Der Trenn- und Wiederanlegevorgang der Materialbahn verläuft wie folgt. Nach Erreichen des vollen Wickelumfangs auf der Aufwickelhülse wird die Trenneinrichtung auf den Trennvorgang vorbereitet, indem mittels des Elektromotors (17) über eine Achse eine Schwungmasse (8) angetrieben wird, die über eine angeflanschte Kupplung (9) die mit ihr verbundenen Rollen (4, 4') in beschleunigte Drehung versetzt und über die Führungsbänder das Trennmesser (3) auf die Trennstelle (12) zubewegt, die unmittelbar neben dem Umfang der Wickelhülse (2) im Bereich der ablaufenden Materialbahn (1') liegt. Im Moment des Auftreffens des Trennmessers (3) auf die Materialbahn (1') muß die Geschwindigkeit des Trennmessers größer sein als die Laufgeschwindigkeit der Folienbahn. Auf diese Weise überholt das Trennmesser den neu entstandenen Bahnanfang, und die Anstreichbürste (7), welche radial auf den Umfang der Leerhülse (2) gerichtet ist, streicht den Bahnanfang auf der Wickelhülse fest. Nach Beendigung des Trennvorgangs wird die Schneideinrichtung (3) wieder über die Führungsbänder und die Führungsrollen abgebremst und zur Ruhestellung (10), die zugleich die Startstellung ist, zurückgeführt. Danach kann der volle Bahnwickel aus dem Wendewickler entnommen werden, worauf an dessen Stelle eine leere Wickelhülse aufgesteckt wird.The separation and re-application process of the material web proceeds as follows. After the full winding circumference on the winding tube has been reached, the separating device is prepared for the separating process by driving a flywheel (8) via an axis by means of the electric motor (17). 4 ') set in accelerated rotation and the cutting knife (3) onto the cutting point via the guide belts (12) which is located directly next to the circumference of the winding tube (2) in the region of the running material web (1 '). When the cutting knife (3) hits the material web (1 '), the speed of the cutting knife must be greater than the running speed of the film web. In this way, the separating knife overtakes the newly formed start of the web, and the painting brush (7), which is directed radially onto the circumference of the empty tube (2), strokes the beginning of the web on the winding tube. After the separation process, the cutting device (3) is braked again via the guide belts and the guide rollers and returned to the rest position (10), which is also the starting position. Then the full web winding can be removed from the turret winder, whereupon an empty winding tube is put in its place.

Nachfolgend wird die geschilderte Trenn- und Anlegevorrichtung komplett abgeschwenkt. Gegenüberliegend der Umlenkrolle (5) wird an den Umfang der neu zu bewickelnden Wickelhülse (2) eine Andruckwalze (18) angeschwenkt, die Umlenkrolle (5) wird dagegen weggeschwenkt. Durch Schwenken des Wendewicklers um 90° bis 180° je nach Anzahl der Wickelhülsen werden die Positionen der Wickelhülsen vertauscht. Mindestens bis zur Beendigung dieses Vorganges bleibt die Andruckwalze (18) an dem neu entstehenden Wickel angeschwenkt. Die Trenn- und Anlegevorrichtung wird in ihre Arbeitsstellung zurückgebracht. Spätestens kurz bevor der neue Wickel den gewünschten Durchmesser erreicht hat, wird die Materialbahn durch die Umlenkrolle (5) an die leere Wickelhülse (2) angedrückt und die Trenn- und Anlegevorrichtung durch den Motor (17) in Gang gesetzt. Der Schneid- und Wechselvorgang kann von Neuem beginnen.In the following, the separation and application device described is completely pivoted away. Opposite the deflection roller (5), a pressure roller (18) is pivoted onto the circumference of the winding tube (2) to be rewound, while the deflection roller (5) is pivoted away. By swiveling the turret winder through 90 ° to 180 °, depending on the number of winding cores, the positions of the winding cores are interchanged. At least until the end of this process, the pressure roller (18) remains pivoted on the newly created roll. The separating and applying device is returned to its working position. Shortly before the new winding has reached the desired diameter, the material web is pressed against the empty winding tube (2) by the deflection roller (5) and the separating and applying device is started by the motor (17). The cutting and changing process can start again.

Erfindungswesentlich ist, daß das Trennmesser (3) mit der Anlegebürste (7) sehr nahe beim Umfang der Wickelhülse (2) vorbeigeführt wird, so daß eine gute Schnittqualität erreicht wird und gleichzeitig der neu entstandene Bahnanfang auf sichere Weise an die Wickelhülse angelegt wird. Durch die konstruktive Auslegung der Trennvorrichtung, mit der das Trennmesser über Bänder geführt wird, ist es möglich, durch genügende Länge des Beschleunigungsweges die gewünschte Trenngeschwindigkeit zu erreichen, die auch bei hohen Laufgeschwindigkeiten der Materialbahn noch erzielbar ist. Vorzugsweise ist dabei der Beschleunigungsweg des Trennmessers ungefähr gleich lang wie der Abbremsweg.It is essential to the invention that the separating knife (3) with the contact brush (7) is passed very close to the circumference of the winding tube (2) so that a good cut quality is achieved and at the same time the newly formed start of the web is securely attached to the winding tube. The design of the separating device, with which the separating knife is guided over belts, makes it possible to achieve the desired separating speed by sufficient length of the acceleration path, which can still be achieved even at high running speeds of the material web. The acceleration path of the cutting knife is preferably approximately the same length as the braking path.

Claims (3)

Vorrichtung zum Trennen und erneuten Anlegen einer zulaufenden Materialbahn (1) an Wickelmaschinen auf eine Wickelhülse (2), die über eine Welle (11) drehend angetrieben wird, wobei die zulaufende Materialbahn mittels einer von der Materialbahn teilweise umschlungenen Umlenkrolle (5) an die Wickelhülse (2) gedrückt wird und wobei die ablaufende Materialbahn (1') nach Verlassen der Wickelhülse mittels eines in den Weg der Materialbahn bewegbaren und durch einen Kraftspeicher antreibbaren quer zum Bahnverlauf sich erstreckenden Trennmessers (3) getrennt und der neue Bahnanfang mittels einer Anlegebürste (7) an die Wickelhülse angelegt wird, dadurch gekennzeichnet, daß das Trennmesser (3) auf beiden Seiten durch Führungsbänder (6, 6') gehalten wird, welche über drehbare Umlenkrollen (4, 4') laufen, wobei das Trennmesser gegenüber der laufenden Materialbahn so beschleunigt wird, daß seine Geschwindigkeit größer ist, als die Laufgeschwindigkeit der Materialbahn und wobei nach dem Trennen der Materialbahn der neue Bahnanfang mittels einer mit dem Trennmesser fest verbundenen quer zur Materialbahn sich erstreckenden Anlegebürste angelegt wird.Device for separating and re-applying an incoming material web (1) on winding machines onto a winding tube (2) which is driven in rotation via a shaft (11), the incoming material web being attached to the winding tube by means of a deflection roller (5) partially wrapped by the material web (2) is pressed and the running material web (1 ') is separated after leaving the winding tube by means of a separating knife (3) which is movable in the path of the material web and can be driven by an energy store and which extends transversely to the web course, and the new web start by means of a positioning brush (7 ) is placed on the winding tube, characterized in that the separating knife (3) is held on both sides by guide belts (6, 6 ') which run over rotatable deflection rollers (4, 4'), the separating knife relative to the running material web is accelerated that its speed is greater than the running speed of the material web and being after after the separation of the material web, the new beginning of the web is applied by means of an abutting brush which is connected to the cutting knife and extends transversely to the material web. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Trennmesser aus seiner Ruhestellung (10) über einen durch eine Kupplung (9) zuschaltbaren Elektromotor (17) und eine Schwungmasse (8) angetrieben wird und nach Durchlaufen der Trennstelle (12) der Materialbahn, welche unmittelbar benachbart dem Umfang der Wickelhülse (2) liegt, wieder abgebremst und zur Ruhestellung (10) zurückgeführt wird, wobei die Beschleunigungsstrecke ungefähr gleich der Länge des Abbremsweges ist.Apparatus according to claim 1, characterized in that the cutting knife is driven from its rest position (10) by an electric motor (17) and a flywheel (8) which can be activated by a clutch (9) and after passing through the cutting point (12) of the material web which is immediately adjacent to the circumference of the winding tube (2), braked again and returned to the rest position (10), the acceleration distance being approximately equal to the length of the braking path. Vorrichtung nach den Ansprüchen 1 bis 2, dadurch gekennzeichnet, daß bei Mehrfach-Wickelmaschinen, bei denen mittels eines Wendewicklers eine fertig gewickelte Rolle in eine Abnahmestellung und gleichzeitig eine leere Wickelhülse in eine Betriebsstellung einschwenkbar ist, die gesamte Trenneinrichtung (3, 4, 4', 6, 6', 7) mittels verschiebbarer Zylinderführungen (13, 13'), welche an zwei über ein Gelenk (14, 14') abknickbaren Armen (15, 15', 16, 16') beiderseits die Materialbahn angreifen, zur Ermöglichung des Wendevorgangs des Wendewicklers zu- und abschwenkbar gelagert ist.Device according to claims 1 to 2, characterized in that in multiple winding machines, in which a completely wound roll can be swiveled into a take-off position and at the same time an empty winding tube can be swiveled into an operating position by means of a turning winder, the entire separating device (3, 4, 4 ', 6, 6', 7) by means of displaceable cylinder guides (13, 13 '), which on two arms (15, 15 ', 16, 16') which can be bent via a joint (14, 14 '), grip the material web on both sides, to allow the turning process of the turret winder to be pivoted in and out.
EP92103219A 1991-03-06 1992-02-26 Cutting and applying device for webs in a winding machine Withdrawn EP0503363A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4107127A DE4107127A1 (en) 1991-03-06 1991-03-06 SEPARATING AND APPLICATION DEVICE FOR MATERIAL COATINGS ON WRAPPING MACHINES
DE4107127 1991-03-06

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EP0503363A1 true EP0503363A1 (en) 1992-09-16

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EP92103219A Withdrawn EP0503363A1 (en) 1991-03-06 1992-02-26 Cutting and applying device for webs in a winding machine

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US (1) US5240196A (en)
EP (1) EP0503363A1 (en)
JP (1) JPH0570005A (en)
DE (1) DE4107127A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802139A2 (en) * 1996-04-19 1997-10-22 Voith Sulzer Papiermaschinen GmbH Method and device for severing a running web

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220541B1 (en) 1999-06-03 2001-04-24 Ctc International Inc. Web winding apparatus with two mandrels mounted at fixed positions and knife carriage movable therebetween
GB2373115B8 (en) 2001-03-08 2008-07-24 Micron Technology Inc Adaptive threshold logic circuit
US6940304B2 (en) * 2001-03-14 2005-09-06 Micron Technology, Inc. Adaptive threshold logic circuit
KR100879723B1 (en) 2001-10-26 2009-01-22 가부시끼가이샤 쓰리본드 Composition for use as self-locking agent and self-locking member using the same
ES2274150T3 (en) * 2003-08-07 2007-05-16 REIFENHAUSER GMBH & CO. MASCHINENFABRIK CROSS CUTTING DEVICE FOR A BAND OF MATERIAL.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225014B (en) * 1965-11-27 1966-09-15 Goebel Gmbh Maschf Device for cutting a running web on a printing or paper processing machine
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482793A (en) * 1967-10-02 1969-12-09 Black Clawson Co Winder for web materials
US3908924A (en) * 1973-05-16 1975-09-30 Greene Gmbh & Co Kg Maschbau Winding machines
US3857524A (en) * 1973-10-05 1974-12-31 Beloit Corp Surface enveloper transfer winder
DE2418409A1 (en) * 1974-04-17 1975-10-30 Weser Lenze Stahlkontor Web winding machine roll change-over system - has cutting strip tensioned when full roll is swung down
DE3425490A1 (en) * 1984-07-11 1986-01-23 Lenze GmbH & Co KG Aerzen, 3258 Aerzen REEL CHANGE DEVICE FOR SLEEVES WITH DIFFERENT DIAMETERS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225014B (en) * 1965-11-27 1966-09-15 Goebel Gmbh Maschf Device for cutting a running web on a printing or paper processing machine
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802139A2 (en) * 1996-04-19 1997-10-22 Voith Sulzer Papiermaschinen GmbH Method and device for severing a running web
EP0802139A3 (en) * 1996-04-19 1998-05-27 Voith Sulzer Papiermaschinen GmbH Method and device for severing a running web

Also Published As

Publication number Publication date
DE4107127A1 (en) 1992-09-10
US5240196A (en) 1993-08-31
JPH0570005A (en) 1993-03-23

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