EP1439142B1 - Method and device for splicing of two material webs - Google Patents

Method and device for splicing of two material webs Download PDF

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Publication number
EP1439142B1
EP1439142B1 EP03025260A EP03025260A EP1439142B1 EP 1439142 B1 EP1439142 B1 EP 1439142B1 EP 03025260 A EP03025260 A EP 03025260A EP 03025260 A EP03025260 A EP 03025260A EP 1439142 B1 EP1439142 B1 EP 1439142B1
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EP
European Patent Office
Prior art keywords
material web
fastening surface
adhesive tape
conveying
conveying path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03025260A
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German (de)
French (fr)
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EP1439142A3 (en
EP1439142A2 (en
Inventor
Carl Conrad Mäder
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Ferag AG
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Ferag AG
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Publication date
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Publication of EP1439142A3 publication Critical patent/EP1439142A3/en
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Publication of EP1439142B1 publication Critical patent/EP1439142B1/en
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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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web

Definitions

  • the present invention relates to a method and a device for joining two material webs according to patent claims 1 and 4, respectively.
  • a method and a device for the preparation of adhesive splices of a roll of material are known.
  • the web start is performed such that the inside of the material web, which can come to rest on the circumference of the roll of material, is accessible from the outside.
  • a two-sided adhesive in particular an adhesive or a two-sided adhesive tape, at least partially attached to the inside of the web in the region of the web start.
  • the web start is rewound again on the roll of material, the inside the web is fixed by means of the adhesive on the circumference of the roll of material.
  • a first plastic web is unwound from a first supply roll and fed to a cutting and feeding device. This is intended to separate each of the plastic web a section and supply them to a device for wrapping of packaged goods with the plastic web section.
  • the cutting and feeding device of the conveying path of a second plastic web from which plastic web sections are separated, when the supply roll of the first plastic web is used up and the trailing end of the first plastic sheet has reached a certain point. This end is then connected to the beginning of a coming from a new supply roll plastic web by welding. As soon as the supply of the second plastic web comes to an end, the system switches back to the first plastic web.
  • Another apparatus with associated method is disclosed in EP 1 162 164.
  • the leading end of a second material web is attached by means of an adhesive tape to a mounting surface. Since it is remote from a conveyor path for a first material web in the rest position, it is freely accessible.
  • the adhesive tape is bent backwards at the end of the second material web.
  • the leading end of the second material web is thereby brought to the first material web, where the adhesive tape can be peeled off from the attachment surface and the adhesive surface of the adhesive tape then faces the first material web to be glued thereto and thus the second material web to connect with the first material web. Since the adhesive surface of the adhesive tape is freely accessible only where it needs to be, namely for attachment to the first material web, high reliability is ensured.
  • the device shown in FIG. 1 has a bearing device 10 for rotatably supporting a first supply roll 12 of a first material web 14 and rotatable bearings of a second supply roll 16 of a second material web 18.
  • a symmetrical two-armed bearing lever 22 is provided at each of its ends with a receiving element 24, for example a bearing shaft or shaft for rotatably supporting the first and second supply roll 12, 16, respectively, to its axis of rotation 20.
  • the storage lever 22 is shown in the unwinding position 26, in which of the overhead first supply roll 12, the first material web 14 is withdrawn continuously or stepwise in the conveying direction F.
  • the conveying path 28 for the first material web 14 extends from the first supply roll 12 via a guide roller 30 to a conveyor roller pair 32, which is driven continuously or stepwise by means of a drive motor, not shown, around the first material web 14 at the desired speed at by the conveyor roller pair 32 formed To provide outlet of the device.
  • the underlying receiving element 24 for example, by hand or by means of a handling device with a full second supply roll 16 has been fitted.
  • the second material web 18 extends through the gap of an auxiliary drive roller pair 34 in the feed direction Z to a fastening device 36.
  • the auxiliary drive roller 38 arranged below the conveying path of the second material web 18 of the auxiliary drive roller pair 34 is mounted stationary and connected to a further drive motor, not shown.
  • the cooperating with the auxiliary drive roller 38, arranged above the conveying path of the second material web 18 further auxiliary drive roller 38 'is shown in Fig. 1 in a rest position in which it is spaced from the second material web 18.
  • the fastening device 36 has between the guide roller 30 and the conveying roller pair 32 below the conveying path 28 of the first material web 14, an endless belt 42, which is arranged upstream of a drive roller 44 in the conveying direction F and about a downstream, smaller in diameter freely rotatably mounted guide roller 46th runs.
  • the workstrum 48 of the endless belt 42 running along the conveying path 18 extends from the drive roller 44, approaching the conveying path 28 approximately to the deflection roller 46, wherein the angle between the first material web 14 and the working strand 48 is small, as shown Embodiment about 5 °.
  • the working strand 48 thus runs approximately parallel to the conveying path 28.
  • the drive roller 44 can be driven in such a way by means of a motor that the working strand 48 moves in the conveying direction F.
  • the second material web 18 is secured by means of a single-sided adhesive tape 52 at the return strand 50 of the endless belt 42.
  • An adhesive tape section 54 projecting beyond the leading end 40 of the second material web 18 has been pressed onto the endless belt 42, for example by hand, which thus forms a fastening surface 56.
  • this mounting surface 56 is remote from the conveying path 28 and thus the first material web 14, while in the region of the working strand 48-in detachment position 56' -this facing.
  • a pressure roller 62 Approximately centrally between the drive roller 44 and guide roller 46, above the conveying path 28, there is a pressure roller 62. This is from the position shown in Fig. 1, in which it is spaced from the conveying path 28, lowered in the direction against the endless belt 42 to to press the first web of material 14 to the adhesive tape 52 at the desired time; see the description of FIG. 4.
  • the storage lever 22 is rotated in each case after the exhaustion of the first supply roll 12 in the direction of arrows 58 about the rotation axis 20 by 180 ° to the second supply roll 16 in the position of the first supply roll 12 and at the same time the second material web 18 to spend in the route 28.
  • the lever is rotated in that direction, that at the beginning the second supply roll 16 moves towards the fastening device 36.
  • the first conveying path 28, preferably upstream of the guide roller 30, can be assigned a controlled cutting device 60 in order to cut through the first material web 14 in the correct phase.
  • the material webs 14, 18 have a width adapted to the product width, for example a few centimeters.
  • the device according to the invention is particularly suitable in connection with devices such as are known from EP-A-1 050 499, EP-A-1 106 550, EP-A-1 112 861 and EP-A-1 275 607 to become.
  • the drive roller 44 is driven in the direction shown, such that the return strand 50 and thus at the beginning of its movement, the mounting surface 56 against the feed direction Z emotional.
  • the second material web 18 is bent away in the direction of the endless belt 42 in the region between the attachment surface 56 and the auxiliary drive roller pair 34 and the adhesive tape 54 is bent over at the end 40 of the second material web 18, as shown in FIG.
  • the further auxiliary drive roller 38 has been delivered to the auxiliary drive roller 38 and the auxiliary drive roller 38 is driven to the second material web 18 of the second Pull off supply roll 16 and feed it in feed direction Z.
  • the second material web 18 adhered to the first material web 14 is advanced through the outlet together with that by means of the conveying roller pair 32, and optionally the first material web 14 is severed by means of the cutting device 60.
  • the now underlying receiving element 24 of the storage device 10 is equipped with a new second supply roll 16, from which the leading end 40 withdrawn and by means of a new adhesive tape 52 in the manner described above in connection with FIG. 1 at the by the endless belt 42nd After the guide roller 30 and the further auxiliary drive roller 38 'have been swung in again, the situation shown in Fig. 1 is reached again, in which the device is ready, the new second web of material 18 with the first material web 14 to connect.
  • the attachment surface 56 may also be formed by the surface of a roller. It is also conceivable to form a mounting surface 56 on a rotatably mounted lever. This could also be formed on a fastening element, which along a trajectory, if necessary, is moved back and forth from the rest position 56 in the detachment layer 56 ".
  • the auxiliary drive roll pair 34 can be dispensed with. It is also conceivable to dispense with the pressure roller 62; This particular, when the guide roller 46, the first material web 14 is supported and the pressing of the adhesive tape 52 is carried out directly.
  • the device shown is particularly suitable for connecting relatively narrow material webs, for example, with a width of a few centimeters to a few decimeters. However, according to the principle of the invention, it is also possible to connect wider material webs.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Connection Of Plates (AREA)

Abstract

The web connecting process involves connecting the front end (40) of the second web (18) by an adhesive strip (52) to the fixing surface (56). To connect the second web to the first, the fixing surface is placed in a release position (56) facing the first web (14), so that the adhesive strip is wrapped round at the end of the second web. The projecting sector (54) of the adhesive strip is than stuck to the first web.

Description

Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zum Verbinden von zwei Materialbahnen gemäss Patentanspruch 1 bzw. 4.The present invention relates to a method and a device for joining two material webs according to patent claims 1 and 4, respectively.

Für die unterschiedlichsten Anwendungsbereiche ist es notwendig, dass eine ununterbrochene Materialbahn zur Verfügung steht. Vielmals ist jedoch der Vorrat endlich, beispielsweise in Form einer zu einer Vorratsrolle aufgewickelten endlichen Materialbahn. In diesen Fällen ist es notwendig, um eine kontinuierliche Materialbahn liefern zu können, den Endbereich einer ersten Materialbahn mit dem Anfangsbereich einer nachfolgenden zu verbinden. Um dies ohne Unterbruch der Auslieferung der Materialbahn tun zu können, sind besondere Verfahren und Vorrichtungen notwendig.It is necessary for a wide variety of applications to have an uninterrupted material web available. However, many times the supply is finite, for example in the form of a wound up to a supply roll finite material web. In these cases, in order to be able to supply a continuous material web, it is necessary to connect the end region of a first material web to the initial region of a subsequent material web. In order to do this without interrupting the delivery of the material web, special methods and devices are necessary.

Aus der DE-A-101 12 636 sind ein Verfahren und eine Vorrichtung zur Klebstellenvorbereitung einer Materialrolle bekannt. Dabei wird der Bahnanfang derart geführt, dass die Innenseite der Materialbahn, die auf dem Umfang der Materialrolle zur Auflage kommen kann, von aussen zugänglich ist. Danach wird auf der Innenseite der Materialbahn im Bereich des Bahnanfangs zumindest abschnittsweise ein zweiseitig klebendes Klebemittel, insbesondere ein Klebstoff oder ein zweiseitiges Klebeband, angebracht. Zuletzt wird der Bahnanfang wieder auf die Materialrolle zurückgespult, wobei die Innenseite der Materialbahn mittels des Klebemittels auf dem Umfang der Materialrolle fixiert wird.From DE-A-101 12 636 a method and a device for the preparation of adhesive splices of a roll of material are known. In this case, the web start is performed such that the inside of the material web, which can come to rest on the circumference of the roll of material, is accessible from the outside. Thereafter, a two-sided adhesive, in particular an adhesive or a two-sided adhesive tape, at least partially attached to the inside of the web in the region of the web start. Finally, the web start is rewound again on the roll of material, the inside the web is fixed by means of the adhesive on the circumference of the roll of material.

Bei einem aus der WO-A-02/083533 bekannten Verfahren und einer darin offenbarten Vorrichtung wird eine erste Kunststoffbahn ab einer ersten Vorratsrolle abgewickelt und einer Schneide- und Vorschubeinrichtung zugeführt. Diese ist dazu bestimmt, von der Kunststoffbahn jeweils einen Abschnitt abzutrennen und diesen einer Einrichtung zum Umhüllen von Packgut mit dem Kunststoffbahnabschnitt zuzuführen. In die Schneide- und Vorschubeinrichtung mündet der Förderweg einer zweiten Kunststoffbahn, von welcher Kunststoffbahnabschnitte abgetrennt werden, wenn die Vorratsrolle der ersten Kunststoffbahn aufgebraucht ist und das nachlaufende Ende der ersten Kunststoffbahn eine bestimmte Stelle erreicht hat. Dieses Ende wird dann mit dem Anfang einer von einer neuen Vorratsrolle herkommenden Kunststoffbahn durch Schweissen verbunden. Sobald der Vorrat der zweiten Kunststoffbahn zu Ende geht, wird entsprechend wieder auf die erste Kunststoffbahn umgeschaltet. Dieses Verfahren und diese Vorrichtung erlauben jedoch nicht kontinuierlich eine ununterbrochene Materialbahn zur Verfügung zu stellen. Eine weitere Vorrichtung mit dazugehörigem Verfahren, welche als nächstliegender Stand der Technik angesehen wird, wird in EP 1 162 164 offenbart.In a method known from WO-A-02/083533 and a device disclosed therein, a first plastic web is unwound from a first supply roll and fed to a cutting and feeding device. This is intended to separate each of the plastic web a section and supply them to a device for wrapping of packaged goods with the plastic web section. In the cutting and feeding device of the conveying path of a second plastic web, from which plastic web sections are separated, when the supply roll of the first plastic web is used up and the trailing end of the first plastic sheet has reached a certain point. This end is then connected to the beginning of a coming from a new supply roll plastic web by welding. As soon as the supply of the second plastic web comes to an end, the system switches back to the first plastic web. However, this method and apparatus do not allow to continuously provide an uninterrupted web of material. Another apparatus with associated method, which is considered to be the closest prior art, is disclosed in EP 1 162 164.

Es ist eine Aufgabe der vorliegenden Erfindung, ein Verfahren vorzuschlagen und eine Vorrichtung zu schaffen, welche auf einfache Art und Weise das Verbinden von Materialbahnen ermöglicht, um ausgangsseits eine ununterbrochene Materialbahn zur Verfügung zu stellen.It is an object of the present invention to propose a method and to provide a device which allows in a simple way the joining of material webs to provide on the output side a continuous web of material.

Diese Aufgabe wird mit einem Verfahren gemäss Patentanspruch 1 und mit einer Vorrichtung gemäss Patentanspruch 4 gelöst.This object is achieved by a method according to claim 1 and with a device according to claim 4.

Das vorauslaufende Ende einer zweiten Materialbahn, also deren Anfang, wird mittels eines Klebebandes an einer Befestigungsfläche befestigt. Da diese in Ruhelage von einem Förderweg für eine erste Materialbahn abgewandt ist, ist sie frei zugänglich. Durch das anfängliche Bewegen der Befestigungsfläche entgegen der Zuführrichtung der zweiten Materialbahn und dann Zuwenden der Befestigungsfläche zum Förderweg der ersten Materialbahn wird das Klebeband beim Ende der zweiten Materialbahn rückwärts umgebogen. Auf einfache Art und Weise wird dadurch das vorlaufende Ende der zweiten Materialbahn zur ersten Materialbahn verbracht, wo das Klebeband von der Befestigungsfläche abgeschält werden kann und die Klebefläche des Klebebandes dann der ersten Materialbahn zugewandt ist, um an dieser angeklebt zu werden und so die zweite Materialbahn mit der ersten Materialbahn zu verbinden. Da die Klebefläche des Klebebandes nur dort frei zugänglich ist, wo sie es sein muss, nämlich zum Anbringen an die erste Materialbahn, ist eine hohe Zuverlässigkeit gewährleistet.The leading end of a second material web, so the beginning, is attached by means of an adhesive tape to a mounting surface. Since it is remote from a conveyor path for a first material web in the rest position, it is freely accessible. By initially moving the mounting surface against the feed direction of the second material web and then turning the mounting surface to the conveying path of the first material web, the adhesive tape is bent backwards at the end of the second material web. In a simple manner, the leading end of the second material web is thereby brought to the first material web, where the adhesive tape can be peeled off from the attachment surface and the adhesive surface of the adhesive tape then faces the first material web to be glued thereto and thus the second material web to connect with the first material web. Since the adhesive surface of the adhesive tape is freely accessible only where it needs to be, namely for attachment to the first material web, high reliability is ensured.

Bevorzugte Weiterbildungen des erfindungsgemässen Verfahrens und bevorzugte Ausführungsformen der erfindungsgemässen Vorrichtung sind in den abhängigen Patentansprüchen angegeben.Preferred developments of the inventive method and preferred embodiments of the inventive device are specified in the dependent claims.

Das erfindungsgemässe Verfahren und die erfindungsgemässe Vorrichtung wird anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben. Es zeigen rein schematisch:

Fig. 1
in Ansicht eine erfindungsgemässe Vorrichtung; und
Fig. 2 bis 7
einen Teil der Vorrichtung gemäss Fig. 1 zu sechs unterschiedlichen aufeinanderfolgenden Zeitpunkten eines Arbeitszyklus.
The inventive method and the inventive device will be described with reference to an embodiment shown in the drawing. It shows purely schematically:
Fig. 1
in view of an inventive device; and
Fig. 2 to 7
a part of the device according to FIG. 1 at six different successive times of a working cycle.

Die in der Fig. 1 gezeigte Vorrichtung weist eine Lagerungseinrichtung 10 zum drehbaren Lagern einer ersten Vorratsrolle 12 einer ersten Materialbahn 14 und drehbaren Lagern einer zweiten Vorratsrolle 16 einer zweiten Materialbahn 18 auf. Zu diesem Zweck ist ein zu seiner Drehachse 20 symmetrischer zweiarmiger Lagerungshebel 22 an jedem seiner Enden mit einem Aufnahmeelement 24, beispielsweise einer Lagerungsachse oder Welle zum drehbaren Lagern der ersten bzw. zweiten Vorratsrolle 12, 16 versehen.The device shown in FIG. 1 has a bearing device 10 for rotatably supporting a first supply roll 12 of a first material web 14 and rotatable bearings of a second supply roll 16 of a second material web 18. For this purpose, a symmetrical two-armed bearing lever 22 is provided at each of its ends with a receiving element 24, for example a bearing shaft or shaft for rotatably supporting the first and second supply roll 12, 16, respectively, to its axis of rotation 20.

In der Fig. 1 ist der Lagerungshebel 22 in Abwickelstellung 26 gezeigt, in welcher von der obenliegenden ersten Vorratsrolle 12 die erste Materialbahn 14 kontinuierlich oder schrittweise in Förderrichtung F abgezogen wird. Der Förderweg 28 für die erste Materialbahn 14 verläuft von der ersten Vorratsrolle 12 über eine Führungsrolle 30 zu einem Förderrollenpaar 32, das mittels eines nicht gezeigten Antriebsmotors kontinuierlich oder schrittweise angetrieben ist, um die erste Materialbahn 14 mit der gewünschten Geschwindigkeit am durch das Förderrollenpaar 32 gebildeten Auslass der Vorrichtung zur Verfügung zu stellen.1, the storage lever 22 is shown in the unwinding position 26, in which of the overhead first supply roll 12, the first material web 14 is withdrawn continuously or stepwise in the conveying direction F. The conveying path 28 for the first material web 14 extends from the first supply roll 12 via a guide roller 30 to a conveyor roller pair 32, which is driven continuously or stepwise by means of a drive motor, not shown, around the first material web 14 at the desired speed at by the conveyor roller pair 32 formed To provide outlet of the device.

In Abwickelstellung 26 des Lagerungshebels 22 ist das untenliegende Aufnahmeelement 24, beispielsweise von Hand oder mittels eines Handlinggerätes mit einer vollen zweiten Vorratsrolle 16 bestückt worden. Von dieser verläuft die zweite Materialbahn 18 durch den Spalt eines Hilfsantriebsrollenpaares 34 in Zuführrichtung Z zu einer Befestigungseinrichtung 36. Die unterhalb des Förderweges der zweiten Materialbahn 18 angeordnete Hilfsantriebsrolle 38 des Hilfsantriebsrollenpaars 34 ist stationär gelagert und mit einem weiteren nicht gezeigten Antriebsmotor verbunden. Die mit der Hilfsantriebsrolle 38 zusammenwirkende, oberhalb des Förderweges der zweiten Materialbahn 18 angeordnete weitere Hilfsantriebsrolle 38' ist in Fig. 1 in einer Ruheposition gezeigt, in welcher sie von der zweiten Materialbahn 18 beabstandet ist. Dies ermöglicht ein problemloses Einlegen der von der zweiten Vorratsrolle 16 abgezogenen zweiten Materialbahn 18 in den Spalt des Hilfsantriebsrollenpaares 34 beim Verbringen des in Zuführrichtung Z gesehen vorauslaufenden Endes 40 der zweiten Materialbahn 18 zur Befestigungseinrichtung 36. Zum Antreiben der zweiten Materialbahn 18 ist die weitere Hilfsantriebsrolle 38' an die zweite Materialbahn 18 zustellbar, um diese förderwirksam an die Hilfsantriebsrolle 38 anzudrücken. Weiter ist die weitere Antriebshilfsrolle 38', wie dies weiter unten im Zusammenhang mit den Fig. 6 und 7 zu erläutern ist, wie auch die Führungsrolle 30 um eine rechtwinklig zu ihrer Achse verlaufende Schwenkachse aus dem Bereich zwischen dem Förderweg 28 und dem Förderweg für die zweite Materialbahn 18 wegschwenkbar. Anstelle von Wegschwenken ist auch ein Zurückziehen in axialer Richtung möglich.In unwinding 26 of the storage lever 22, the underlying receiving element 24, for example, by hand or by means of a handling device with a full second supply roll 16 has been fitted. From there, the second material web 18 extends through the gap of an auxiliary drive roller pair 34 in the feed direction Z to a fastening device 36. The auxiliary drive roller 38 arranged below the conveying path of the second material web 18 of the auxiliary drive roller pair 34 is mounted stationary and connected to a further drive motor, not shown. The cooperating with the auxiliary drive roller 38, arranged above the conveying path of the second material web 18 further auxiliary drive roller 38 'is shown in Fig. 1 in a rest position in which it is spaced from the second material web 18. This allows easy insertion of the withdrawn from the second supply roll 16 second material web 18 in the gap of the auxiliary drive roller pair 34 when moving seen in the feed direction Z leading end 40 of the second material web 18 to the fastening device 36. For driving the second material web 18 is the further auxiliary drive roller 38th 'deliverable to the second material web 18, to press this effective to the auxiliary drive roller 38. Further, the further drive auxiliary roll 38 ', as will be explained below in connection with Figs. 6 and 7, as well as the guide roller 30 about a perpendicular to its axis extending pivot axis from the region between the conveying path 28 and the conveying path for the second web 18 swung away. Instead of swinging away a retraction in the axial direction is possible.

Die Befestigungseinrichtung 36 weist zwischen der Führungsrolle 30 und dem Förderrollenpaar 32 unterhalb des Förderwegs 28 der ersten Materialbahn 14 ein Endlosband 42 auf, das um eine in Förderrichtung F gesehen stromaufwärts angeordnete Antriebswalze 44 und um eine stromabwärts angeordnete, im Durchmesser kleinere frei drehbar gelagerte Umlenkwalze 46 verläuft. Das beim Förderweg 18 verlaufende Arbeitstrum 48 des Endlosbandes 42 verläuft von der Antriebswalze 44 her, sich an den Förderweg 28 annähernd zur Umlenkwalze 46, wobei der Winkel zwischen der ersten Materialbahn 14 und dem Arbeitstrum 48 klein ist, im gezeigten Ausführungsbeispiel ca. 5°. Das Arbeitstrum 48 verläuft somit annähernd parallel zum Förderweg 28. Die Antriebswalze 44 ist mittels eines Motors derart antreibbar, dass sich das Arbeitstrum 48 in Förderrichtung F bewegt.The fastening device 36 has between the guide roller 30 and the conveying roller pair 32 below the conveying path 28 of the first material web 14, an endless belt 42, which is arranged upstream of a drive roller 44 in the conveying direction F and about a downstream, smaller in diameter freely rotatably mounted guide roller 46th runs. The workstrum 48 of the endless belt 42 running along the conveying path 18 extends from the drive roller 44, approaching the conveying path 28 approximately to the deflection roller 46, wherein the angle between the first material web 14 and the working strand 48 is small, as shown Embodiment about 5 °. The working strand 48 thus runs approximately parallel to the conveying path 28. The drive roller 44 can be driven in such a way by means of a motor that the working strand 48 moves in the conveying direction F.

Etwa mittig zwischen der Antriebswalze 44 und Umlenkwalze 46 ist am Rücktrum 50 des Endlosbandes 42 die zweite Materialbahn 18 mittels eines einseitig klebenden Klebebandes 52 befestigt. Ein über das vorlaufende Ende 40 der zweiten Materialbahn 18 vorstehender Klebebandabschnitt 54 wurde dazu, beispielsweise von Hand, an das Endlosband 42 angedrückt, welches somit eine Befestigungsfläche 56 bildet. Im Bereich des Rücktrums 50 - in ihrer Ruhelage 56' - ist diese Befestigungsfläche 56 vom Förderweg 28 und somit der ersten Materialbahn 14 abgewandt, während sie im Bereich des Arbeitstrums 48 - in Ablöselage 56' - diesem zugewandt ist.Approximately centrally between the drive roller 44 and deflection roller 46, the second material web 18 is secured by means of a single-sided adhesive tape 52 at the return strand 50 of the endless belt 42. An adhesive tape section 54 projecting beyond the leading end 40 of the second material web 18 has been pressed onto the endless belt 42, for example by hand, which thus forms a fastening surface 56. In the region of the return strand 50-in its rest position 56 '-this mounting surface 56 is remote from the conveying path 28 and thus the first material web 14, while in the region of the working strand 48-in detachment position 56' -this facing.

Etwa mittig zwischen der Antriebswalze 44 und Umlenkwalze 46, oberhalb des Förderweges 28, befindet sich eine Andrückwalze 62. Diese ist aus der in Fig. 1 gezeigten Stellung, in welcher sie vom Förderweg 28 beabstandet ist, in Richtung gegen das Endlosband 42 absenkbar, um die erste Materialbahn 14 zum gewünschten Zeitpunkt an das Klebeband 52 anzupressen; siehe dazu die Beschreibung zu Fig. 4.Approximately centrally between the drive roller 44 and guide roller 46, above the conveying path 28, there is a pressure roller 62. This is from the position shown in Fig. 1, in which it is spaced from the conveying path 28, lowered in the direction against the endless belt 42 to to press the first web of material 14 to the adhesive tape 52 at the desired time; see the description of FIG. 4.

Der Vollständigkeit halber sei erwähnt, dass der Lagerungshebel 22 jeweils nach dem Aufbrauch der ersten Vorratsrolle 12 in Richtung der Pfeile 58 um die Drehachse 20 um 180° gedreht wird, um die zweite Vorratsrolle 16 in die Position der ersten Vorratsrolle 12 und gleichzeitig die zweite Materialbahn 18 in den Förderweg 28 zu verbringen. Zu diesem Zweck wird der Hebel in jener Richtung gedreht, dass sich zu Beginn die zweite Vorratsrolle 16 auf die Befestigungseinrichtung 36 zu bewegt. Weiter sei erwähnt, dass dem ersten Förderweg 28, vorzugsweise stromaufwärts der Führungsrolle 30, eine gesteuerte Schneideinrichtung 60 zugeordnet sein kann, um phasenrichtig die erste Materialbahn 14 zu durchtrennen. Dies kann in jenen Fällen notwendig sein, bei welchen die Materialbahnen 14, 18 bedruckt sind oder Produkte tragen, die beim Auslass der Vorrichtung in definierter Lage ankommen müssen. Bei solchen Produkten kann es sich beispielsweise um Klebetiketten oder unter dem Markennamen "post-it" bekannte Klebezettel handeln. Bei diesen Anwendungen haben die Materialbahnen 14, 18 eine der Produktebreite angepasste Breite von beispielsweise einigen Zentimetern. Die erfindungsgemässe Vorrichtung ist insbesondere geeignet im Zusammenhang mit Vorrichtungen, wie sie aus den EP-A-1 050 499, EP-A-1 106 550, EP-A-1 112 861 und EP-A-1 275 607 bekannt sind, eingesetzt zu werden.For completeness, it should be mentioned that the storage lever 22 is rotated in each case after the exhaustion of the first supply roll 12 in the direction of arrows 58 about the rotation axis 20 by 180 ° to the second supply roll 16 in the position of the first supply roll 12 and at the same time the second material web 18 to spend in the route 28. For this purpose, the lever is rotated in that direction, that at the beginning the second supply roll 16 moves towards the fastening device 36. It should also be mentioned in that the first conveying path 28, preferably upstream of the guide roller 30, can be assigned a controlled cutting device 60 in order to cut through the first material web 14 in the correct phase. This may be necessary in those cases in which the webs 14, 18 are printed or carry products that must arrive at the outlet of the device in a defined position. Such products may be, for example, adhesive labels or stickers known under the brand name "post-it". In these applications, the material webs 14, 18 have a width adapted to the product width, for example a few centimeters. The device according to the invention is particularly suitable in connection with devices such as are known from EP-A-1 050 499, EP-A-1 106 550, EP-A-1 112 861 and EP-A-1 275 607 to become.

Ausgehend von der in Fig. 1 gezeigten Situation wird die Funktionsweise der dort dargestellten Vorrichtung anhand der Fig. 2 bis 7 erläutert.Starting from the situation shown in Fig. 1, the operation of the device shown there will be explained with reference to FIGS. 2 to 7.

Zu einem bestimmten Zeitpunkt, beispielsweise wenn das zu Endegehen der ersten Vorratsrolle 12 mittels eines Sensors detektiert wird, wird die Antriebswalze 44 in der gezeigten Richtung angetrieben, derart, dass sich das Rücktrum 50 und somit zu Beginn seiner Bewegung die Befestigungsfläche 56 entgegen der Zuführrichtung Z bewegt. Dadurch wird die zweite Materialbahn 18 im Bereich zwischen der Befestigungsfläche 56 und dem Hilfsantriebsrollenpaar 34 in Richtung vom Endlosband 42 weg ausgebogen und das Klebeband 54 beim Ende 40 der zweiten Materialbahn 18 umgebogen, wie dies Fig. 2 zeigt. Zu diesem Zweck ist auch die weitere Hilfsantriebsrolle 38' zur Hilfsantriebsrolle 38 zugestellt worden und wird die Hilfsantriebsrolle 38 angetrieben, um die zweite Materialbahn 18 von der zweiten Vorratsrolle 16 abzuziehen und in Zuführrichtung Z zu fördern.At a certain time, for example, when the end of the first supply roll 12 is detected by means of a sensor, the drive roller 44 is driven in the direction shown, such that the return strand 50 and thus at the beginning of its movement, the mounting surface 56 against the feed direction Z emotional. As a result, the second material web 18 is bent away in the direction of the endless belt 42 in the region between the attachment surface 56 and the auxiliary drive roller pair 34 and the adhesive tape 54 is bent over at the end 40 of the second material web 18, as shown in FIG. For this purpose, the further auxiliary drive roller 38 'has been delivered to the auxiliary drive roller 38 and the auxiliary drive roller 38 is driven to the second material web 18 of the second Pull off supply roll 16 and feed it in feed direction Z.

Durch die anschliessende Umlenkung der Befestigungsfläche 56 um die Antriebswalze 44 wird sie dem Förderweg 28 und somit der ersten Materialbahn 14 zugewandt und wird gleichzeitig das Klebeband 52 bis auf 180° umgebogen, was in der Fig. 3 gezeigt ist.As a result of the subsequent deflection of the fastening surface 56 about the drive roller 44, it is directed toward the conveying path 28 and thus the first material web 14 and at the same time the adhesive tape 52 is bent over to 180 °, which is shown in FIG.

Hat die Befestigungsfläche 56 die Ablöselage 56" im Bereich des Arbeitstrums 48 erreicht, wird die Antriebswalze 44 beschleunigt, während die Hilfsantriebsrolle 38 mit unveränderter Geschwindigkeit angetrieben wird. Dies hat zur Folge, dass der Klebebandabschnitt 54 von der Befestigungsfläche 56 und somit dem Endlosband 42 abgeschält wird, indem der Falz des Klebebandes 52 vom Ende 40 der zweiten Materialbahn 18 weg zum freien Ende des Klebebandes 52 hin sich bewegt. Diese Situation ist in Fig. 4 gezeigt. Durch Bewegen der Andrückwalze 62 auf das Arbeitstrum 48 zu, wird die erste Materialbahn 14 mit dem Klebebandabschnitt 54 in Verbindung gebracht und an diesen angedrückt. Dadurch wird die zweite Materialbahn 18 mit der ersten Materialbahn 14 verbunden. Die Hilfsantriebsrolle 38 ist derart angetrieben, dass zum Zeitpunkt des Verbindens des Klebebandabschnitts 54 mit der ersten Materialbahn 14 die zweite Materialbahn 18 mit einer Geschwindigkeit gefördert wird, die der Fördergeschwindigkeit der ersten Materialbahn 14 entspricht. Dadurch werden unerwünschte Zugbelastungen in den Materialbahnen 14, 18 verhindert und ein positionsgenaues Verbinden der beiden Materialbahnen 14, 18 ermöglicht. In diesem Zustand gleiten das Klebeband 52 und die zweite Materialbahn 18 am Endlosband 42.When the attachment surface 56 reaches the release layer 56 "in the region of the working strand 48, the drive roller 44 is accelerated while the auxiliary drive roller 38 is driven at the same speed is moved by moving the fold of the adhesive tape 52 away from the end 40 of the second web of material 18 toward the free end of the adhesive tape 52. This situation is shown in Fig. 4. Moving the pressure roll 62 toward the workstring 48, the first web becomes The second material web 18 is thus connected to the first material web 14. The auxiliary drive roller 38 is driven such that at the time of joining the adhesive tape portion 54 with the first material web 14, the second material web 18 is conveyed at a rate that the Förderg speed of the first material web 14 corresponds. As a result, undesirable tensile loads in the material webs 14, 18 are prevented and a positionally accurate joining of the two webs 14, 18 allows. In this state, the adhesive tape 52 and the second material web 18 slide on the endless belt 42.

Wie in Fig. 5 dargestellt ist, wird die an die erste Materialbahn 14 angeklebte zweite Materialbahn 18 zusammen mit jener mittels des Förderrollenpaares 32 durch den Auslass vorgeschoben und wird gegebenenfalls die erste Materialbahn 14 mittels der Schneideinrichtung 60 durchtrennt.As shown in FIG. 5, the second material web 18 adhered to the first material web 14 is advanced through the outlet together with that by means of the conveying roller pair 32, and optionally the first material web 14 is severed by means of the cutting device 60.

Nun werden die Führungsrolle 30 und die weitere Hilfsantriebsrolle 38' zurückverschwenkt ausserhalb den Bereich zwischen dem ersten Förderweg 28 und der zweiten Materialbahn 18. Dies ist in Fig. 6 durch die gestrichelt gezeichneten Führungsrolle 30 und weitere Hilfsantriebsrolle 38' angedeutet. Der Lagerungshebel 22 wird dann um 180° gedreht, wodurch nun die früher zweite Materialbahn 18 zur ersten Materialbahn 14 wird.Now, the guide roller 30 and the further auxiliary drive roller 38 'swung back outside the range between the first conveying path 28 and the second material web 18. This is indicated in Fig. 6 by the dashed line guide roller 30 and further auxiliary drive roller 38'. The storage lever 22 is then rotated by 180 °, whereby now the former second material web 18 to the first material web 14 is.

Das nun untenliegende Aufnahmeelement 24 der Lagerungseinrichtung 10 wird mit einer neuen zweiten Vorratsrolle 16 bestückt, von welcher das vorlaufende Ende 40 abgezogen und mittels eines neuen Klebebandes 52 in der weiter oben im Zusammenhang mit Fig. 1 beschriebenen Art und Weise an der durch das Endlosband 42 gebildeten Befestigungsfläche 56 fixiert wird - Fig. 7. Nachdem die Führungsrolle 30 und die weitere Hilfsantriebsrolle 38' wieder eingeschwenkt worden sind, ist die in Fig. 1 gezeigte Situation wieder erreicht, in welcher die Vorrichtung bereit ist, die neue zweite Materialbahn 18 mit der ersten Materialbahn 14 zu verbinden.The now underlying receiving element 24 of the storage device 10 is equipped with a new second supply roll 16, from which the leading end 40 withdrawn and by means of a new adhesive tape 52 in the manner described above in connection with FIG. 1 at the by the endless belt 42nd After the guide roller 30 and the further auxiliary drive roller 38 'have been swung in again, the situation shown in Fig. 1 is reached again, in which the device is ready, the new second web of material 18 with the first material web 14 to connect.

Anstelle durch ein Endlosband 42 kann die Befestigungsfläche 56 auch durch die Oberfläche einer Walze gebildet sein. Es ist auch denkbar, an einem drehbar gelagerten Hebel eine Befestigungsfläche 56 auszubilden. Diese könnte auch an einem Befestigungselement ausgebildet sein, welches entlang einer Bewegungsbahn, gegebenenfalls hin und her von der Ruhelage 56 in die Ablöselage 56" bewegt wird.Instead of an endless belt 42, the attachment surface 56 may also be formed by the surface of a roller. It is also conceivable to form a mounting surface 56 on a rotatably mounted lever. This could also be formed on a fastening element, which along a trajectory, if necessary, is moved back and forth from the rest position 56 in the detachment layer 56 ".

Falls die Vorratsrollen 12, 16 selber angetrieben sind, kann auf das Hilfsantriebsrollenpaar 34 verzichtet werden. Es ist auch denkbar, auf die Andrückwalze 62 zu verzichten; dies insbesondere, wenn die Umlenkwalze 46 die erste Materialbahn 14 stützt und das Andrücken des Klebebandes 52 unmittelbar erfolgt.If the supply rolls 12, 16 are driven themselves, the auxiliary drive roll pair 34 can be dispensed with. It is also conceivable to dispense with the pressure roller 62; This particular, when the guide roller 46, the first material web 14 is supported and the pressing of the adhesive tape 52 is carried out directly.

Die gezeigte Vorrichtung eignet sich besonders zum Verbinden von relativ schmalen Materialbahnen, beispielsweise mit einer Breite von wenigen Zentimetern bis einige Dezimeter. Nach dem Erfindungsgemässen Prinzip lassen sich jedoch auch breitere Materialbahnen verbinden.The device shown is particularly suitable for connecting relatively narrow material webs, for example, with a width of a few centimeters to a few decimeters. However, according to the principle of the invention, it is also possible to connect wider material webs.

Claims (10)

  1. Method for splicing of two material webs, in which a first material web (14) is conveyed along a conveying path (28) in a conveying direction (F), a second material web (18), with its end (40) running on ahead in a supply direction (Z), is fastened by means of an adhesive tape (52) to a fastening surface (56) of a fastening device (36), which fastening surface is situated in a rest position (56') facing away from the first conveying path (28), with a section (54) of the adhesive tape (52) protruding over the end (40) of the second material web (18), the end (40) of the second material web (18) is brought - by movement of the fastening surface (56) along a movement track out of the rest position (56'), at the beginning at least approximately counter to the supply direction (Z), into a detaching position (56") facing the first conveying path (28) -to the conveying path (28) with the adhesive tape (52) being bent over at the end (40) of the second material web (18), and the protruding section (54) of the adhesive tape (52) is peeled off from the fastening surface (56), which is in the detaching position (56"), and is joined to the first material web (14).
  2. Method according to Claim 1, characterized in that the protruding section (54) of the adhesive tape (52) is peeled off from the fastening surface (56) by the fastening surface (56) moving more rapidly than the end (40) of the second material web (18), at least approximately in the conveying direction (F).
  3. Method according to Claim 1 or 2, characterized in that, in order to join the protruding section (54) of the adhesive tape (52) to the first material web (14), the second material web (18) is conveyed at a speed which corresponds at least approximately to the conveying speed of the first material web (14).
  4. Device for splicing of two material webs, with a conveying path (28) along which a first material web (14) is conveyed in a conveying direction (F), a fastening device (36) with a fastening surface (56), which is moveable from a rest position (56'), which faces away from the first conveying path (28), along a movement track towards the conveying path (28) into a detaching position (56") which faces the latter, wherein, in the rest position (56'), a second material web (18), with its end (40) running on ahead in a supply direction (Z), can be fastened by means of an adhesive tape (52) to the fastening surface, with a section (54) of the adhesive tape (52) protruding over the end (40) of the second material web (18), the fastening surface (56), at the beginning of the movement out of the rest position (56'), moves at least approximately counter to the supply direction (Z) and is brought into the detaching position (56") with the adhesive tape (52) being bent over at the end (40) of the second material web (18), and the fastening surface (56), which is in the detaching position (56") - in order to peel off the section (54) of the adhesive tape (52) from the fastening surface (56) - is moved at least approximately in the conveying direction (F) at a speed which is greater than that of the end (40) of the second material web (18).
  5. Device according to Claim 4, characterized in that the fastening surface (56) is formed by a section of a continuous belt (42) which is guided about two deflecting rollers (44, 46) spaced apart from each other in the conveying direction (F), wherein the rest position (56') of the fastening surface (56) is situated in the region of a return strand (50) and the detaching position (56") is situated in the region of a working strand (48) of the continuous belt (42), which working strand runs at least approximately parallel to the conveying path (28) and near to the latter.
  6. Device according to Claim 4 or 5, characterized in that the fastening device (36) has, on the other side of the conveying path (28) with respect to the fastening surface (56), a press-on roller (62) which is moved in the direction of the fastening surface (56) in order to press the first material web (14) onto the peeled-off section (54) of the adhesive tape (52).
  7. Device according to one of Claims 4 to 6, characterized in that the conveying path (28) is assigned, upstream of the fastening device (36), a cutting device (60) for the preferably phase-correct cutting through of the first material web (14).
  8. Device according to one of Claims 4 to 7, characterized by a two-armed mounting lever (22) with a receiving element (24) at each end for the rotatable mounting, on the one hand, of a first supply reel (12) for the first material web (14) and, on the other hand, of a second supply reel (16) for the second material web (18), wherein, after the second material web (18) is fastened to the first material web (14), the mounting lever (22) is rotated through 180° and, as a result, the second material web (18) is brought into the conveying path (28) and becomes the first material web (14).
  9. Device according to one of claims 4 to 8, characterized in that a conveying member (38), preferably a pair of conveying rollers, is arranged upstream of the fastening device (36) in the feed direction (Z) in order to convey the second material web (18) at a predetermined speed during the movement of the fastening surface (56) from the rest position (56') into the detaching position (56"), for peeling off the section (54) of the adhesive tape (52) from the fastening surface (56), and during the joining of the section (54) to the first material web (14).
  10. Device according to one of Claims 4 to 9, characterized in that a conveying member (32), preferably a pair of conveying rollers, for the first material web (14) is arranged downstream of the joining device (36) in the conveying direction (F).
EP03025260A 2003-01-16 2003-11-06 Method and device for splicing of two material webs Expired - Lifetime EP1439142B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH602003 2003-01-16
CH602003 2003-01-16

Publications (3)

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EP1439142A2 EP1439142A2 (en) 2004-07-21
EP1439142A3 EP1439142A3 (en) 2005-04-06
EP1439142B1 true EP1439142B1 (en) 2007-04-11

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Application Number Title Priority Date Filing Date
EP03025260A Expired - Lifetime EP1439142B1 (en) 2003-01-16 2003-11-06 Method and device for splicing of two material webs

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EP (1) EP1439142B1 (en)
AT (1) ATE359224T1 (en)
DE (1) DE50307006D1 (en)
DK (1) DK1439142T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022119207A1 (en) 2022-08-01 2024-02-22 Körber Technologies Gmbh Method and device for connecting two material webs running from a reel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201601A1 (en) * 2019-02-07 2020-08-13 Bhs Intralogistics Gmbh Material roll preparation arrangement
DE102019203744A1 (en) * 2019-02-07 2020-08-13 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Divider Cover Removal Device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859146A (en) * 1981-09-30 1983-04-08 Rengo Co Ltd Adding method of paper and its device
IT1321284B1 (en) * 2000-06-05 2004-01-08 Gd Spa DEVICE FOR THE AUTOMATIC JOINTING OF TAPES CARRIED OUT BY REELS.
DE10112636B4 (en) * 2001-03-14 2006-04-13 Koenig & Bauer Ag Method and device for splice preparation of a roll of material
FR2823190B1 (en) * 2001-04-10 2003-09-05 Cermex Ouest Conditionnement METHOD FOR RECHARGING A WRAPPER WITH A PLASTIC FILM, AND WRAPPER IMPLEMENTING THE METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022119207A1 (en) 2022-08-01 2024-02-22 Körber Technologies Gmbh Method and device for connecting two material webs running from a reel

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DE50307006D1 (en) 2007-05-24
ATE359224T1 (en) 2007-05-15
EP1439142A3 (en) 2005-04-06
EP1439142A2 (en) 2004-07-21
DK1439142T3 (en) 2007-08-13

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