EP0638499B1 - Method and device for joining webs of material, in particular packaging material - Google Patents

Method and device for joining webs of material, in particular packaging material Download PDF

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Publication number
EP0638499B1
EP0638499B1 EP94110785A EP94110785A EP0638499B1 EP 0638499 B1 EP0638499 B1 EP 0638499B1 EP 94110785 A EP94110785 A EP 94110785A EP 94110785 A EP94110785 A EP 94110785A EP 0638499 B1 EP0638499 B1 EP 0638499B1
Authority
EP
European Patent Office
Prior art keywords
web
new
bobbin
runoff
beginning
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
EP94110785A
Other languages
German (de)
French (fr)
Other versions
EP0638499A1 (en
Inventor
Heinz Focke
Harald Dr. Gosebruch
Henry Buse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0638499A1 publication Critical patent/EP0638499A1/en
Application granted granted Critical
Publication of EP0638499B1 publication Critical patent/EP0638499B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—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
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/4641—Splicing effecting splice by pivoting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/81—Packaging machines

Definitions

  • the invention relates to a method for connecting material webs from packaging material, namely a web start of a web of material wound as a bobbin - new bobbin - new web - with a web end of a web of material - runoff web - running off from another bobbin - drain bobbin - the web start of the new web by a Puller is moved into a region of a connecting unit and is connected in the region of the connecting unit to the end of the runway by gluing or the like. Furthermore, the invention relates to a device for performing the method.
  • Such a method and a device according to the preamble of claim 3 are known from EP-A-0 299 181.
  • the beginning of the path of a new bobbin is placed on a traverse by an operator.
  • the operator then manually cuts off a protruding end of the path start and thus creates a new path start.
  • the (new) web start is moved into a position for splicing the new material web with the old material web.
  • the invention has for its object to ensure a reliable, fully automatic connection of the new track of a new bobbin to the runway using simple organs.
  • the device according to the invention is characterized in that the holder with the new track or a track section can be conveyed through the connecting unit by the conveyor.
  • the puller designed in the sense of the invention is preferably a swivel arm which can be moved back and forth in the vertical plane and which has a holder at the free end, in particular a take-up roller having suction bores. This captures an end piece of the new web and fixes it by winding and suction air. It is important that the puller grips the new web on the new web, pulls it off and transports it to the position for connection to the runway.
  • the pulling device or the holder for the new web is accordingly conveyed through the connecting unit with the new web and held in a position which is favorable for the connecting process.
  • the new web and the runway are pressed against one another, severed together and then connected to one another to form a continuous web.
  • the pulling device then returns to the starting position.
  • FIG. 1 an embodiment of a web connecting device is shown, which is used in connection with a packaging machine.
  • this unit can be used in cigarette packaging machines.
  • the material webs to be handled consist of packaging material, for example of paper, plastic or tinfoil.
  • the packaging machine With continuous conveyance, the packaging machine is supplied with a running material web, that is to say a running web 10. This is subtracted from a bobbin, namely from a drain bobbin 11. A second, "full" bobbin, ie a new bobbin 12, is kept ready. After the drain bobbin 11 has been used up, it is a matter of connecting a new track 13 to be pulled off the new bobbin 12 to the drain track 10.
  • the two bobbins namely drain bobbins 11 and new bobbins 12, are rotatably mounted on a two-armed rocker 14 and are preferably driven by a motor. Free ends of the rocker 14 are designed as a fork 15. This facilitates the feeding of new, full bobbins to the web connecting device.
  • the rocker 14 is rotated into an upright position to accommodate a new bobbin.
  • a support pin 16, 17 is pivotally mounted for receiving a bobbin.
  • the support pins 16, 17 In a horizontally directed position, that is to say transversely to the rocker 14, the support pins 16, 17 are in the working position.
  • the material webs can be pulled off the respective bobbin.
  • the support pin 16 or 17 of the fork 15 which is directed upwards is pivoted into an upright position. A new bobbin can now be placed on the support pins 16, 17 from above.
  • Two sub-assemblies belong to the rail connection device.
  • a connection unit 18 is provided, which establishes the connection between the runway 10 and the new path 13.
  • the drain bobbin 11 is monitored by suitable, known monitoring bodies with regard to the remaining size.
  • the connection of the new runway 13 to the runway 10 is prepared in good time.
  • the rocker 14 is in an obliquely directed position, in which the drain bobbin 11 is at the bottom and the new bobbin 12 is at the top. It is now a matter of detecting a front end 19 of the new web 13 and feeding it to the connecting unit 18.
  • a puller 20 is provided for this. This is designed here as a swivel arm 21, which is in the vertical plane between a receiving position (shown in dashed lines) on the new bobbin 12 and a transfer position in the area of the connecting unit 18 can be moved back and forth.
  • a receiving head for the front end 19, in the present exemplary embodiment a rotatable receiving roller 22.
  • This is provided with a plurality of radially directed suction bores 23 which are connected to a vacuum source.
  • the new web 13 is detachable, namely by means of a peel-off adhesive, connected to an underlying winding layer 24 of the new bobbin 12.
  • the attachment of an area of the new track 13 facing the front end 19 is selected such that an exposed, ie non-attached end piece 25 of, for example, several centimeters in length is formed.
  • the free end piece 25 can also be formed by an adhesive strip 26 with which the front end 19 of the new web 13 is fastened to the winding layer 24.
  • the adhesive strip 26 has an adhesive area 27 which fixes the front end 19 and the adhesive-free end piece 25.
  • the new web 13 is connected to the winding layer 24 by adhesive 28. This is attached at a distance from the front end 19 so that the free end piece 25 is formed.
  • the puller 20 grasps the free end piece 25 and then pulls a web section 29 from the new bobbin 12 while releasing the adhesive connection.
  • the procedure for receiving the new web 13 is similar if it is fixed with an adhesive strip 26 (FIG. 2).
  • the pick-up roller 22 is provided with a plurality of suction bores 23 for securely gripping the end piece 25, particularly in the central region, namely with two closely spaced rings of suction bores 23, in particular in the region of the adhesive strip 26.
  • the head that is to say the take-up roller 22 is moved until it rests on the peripheral surface of the new bobbin 12.
  • This is now driven in rotation, specifically in the unwinding direction, that is to say in the direction of the withdrawal movement of the new web 13 in accordance with the direction arrow 30.
  • the take-up roller 22 is driven in a correspondingly rotating manner in the opposite direction. The rotary movements are carried out until the free end piece 25 abuts the circumference of the take-up roller 22 and is gripped by the suction bores 23 (FIG. 5). A pulling force is now exerted on the end piece 25 and the adhesive connection until a sufficient track piece is gripped by the take-up roll 22.
  • the puller or its swivel arm 21 is now moved in the direction of the connecting unit 18 and beyond it.
  • the pulling-off movement of the new web 13 or of the web section 29 goes so far that it lies against the underside of a pressure plate 31 of the connecting unit 18 (position according to FIG. 8).
  • the new track 13 or the track section 29 provided for connection to the run-off track 10 is accordingly moved by the pulling member 20 in one movement cycle from the pick-up position on the new reel 12 to the end position in the area of the connecting unit 18.
  • the web section 29 is held in the correct position by the pulling member 20.
  • the new bobbin 12 can also be driven by a motor in the direction of rotation.
  • the plane of movement of the swivel arm 21 lies outside of or next to the connecting unit 18.
  • the connecting unit 18 has the task of forming a path end 32 of the run-off path 10 and a path start 33 of the new path 13, to position it in an exact relative position, namely immediately adjacent to one another, and then to connect it to one another.
  • runway 10 and new runway 12 are placed next to one another in the region of the connecting unit and severed together.
  • web end 32 and web start 33 lie directly next to one another.
  • Runway 10 and new runway 13 can thus be connected to one another without gaps.
  • the special design of the connecting unit and the feeding of the new web 13 to it in one movement cycle of the pulling device 20 enables the new web 13 or the web section 29 to be transferred to the connecting unit 18 in an exact position. In this way, the exact position can be achieved of the separating cut can be determined by the webs. This is important if the material webs have a print, for example that of a blank for packaging.
  • Both lanes, that is to say runway 10 and new lane 13 can be controlled by suitable sensors 34, 35, which are assigned to each lane, with the aid of print marks. The printed marks sensed by the sensors 34, 35 generate a control signal on drive elements for the webs in such a way that they are stopped in the exact position in the area of the connecting unit 18.
  • the connecting unit 18 consists of the pressure plate 31 and a counter-pressure element, namely a pressure piece 36 on the free side of the runway 10, that is, below.
  • the support piece 39 can be moved up and down with the pressure piece 36 and the deflection rollers 37, 38.
  • a lower position corresponds to the working position during the removal of the runway 10 (dashed line in FIG. 1). In this position, the web section 29 of the new web 13 can be moved into the region of the connecting unit 18 in the manner described.
  • the run-off track 10 on the downward side or on the side facing the packaging machine is pressed by the pressure piece 36 against the new track 13 and with it onto the pressure plate 31.
  • the runway 10 is now stopped.
  • the processing machine (packaging machine) can continue to run.
  • the required web material is drawn from a web store 40, which is designed here as a multiple rocker.
  • the processing machine is operated with reduced power during this phase (crawl gear).
  • a cutting knife 41 is moved across the webs.
  • the separating knife 41 runs in a groove 42 of the pressure plate 31.
  • the separating knife 41 is attached here to a carriage 43 which can be moved on transverse guide rods 44.
  • the remaining web parts resulting from the separating cut are held in the predetermined position within the connecting unit 18.
  • the divided web section 29 of the new web 13 is held on the pressure plate 31 by suction air, which is generated via bores 46 on the downward contact surface of the pressure plate 31.
  • a section facing the take-up roll 22 is held together with the remaining runway 10 by the pressure piece 36.
  • a strip encoder 48 which can be moved up and down is attached to the support piece 39.
  • it is a swiveling arm with a transverse arm and a holding surface 49 for the connecting strip.
  • the strip dispenser 48 In the lower position of the pressure piece 36, the strip dispenser 48 is loaded with a new connecting strip.
  • a suitably designed transmission element 50 is provided, which places the connecting strip 47 on the holding surface 49.
  • the connecting strip 47 is held there by suction air via suction bores 51.

Landscapes

  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Verbinden von Materialbahnen aus Verpackungsmaterial, nämlich eines Bahnanfangs einer als Bobine - Neubobine - gewickelten Materialbahn - Neubahn - mit einem Bahnende einer von einer anderen Bobine - Ablaufbobine - ablaufenden Materialbahn - Ablaufbahn -, wobei der Bahnanfang der Neubahn durch ein Abziehorgan in einen Bereich eines Verbindungsaggregats bewegt wird und im Bereich des Verbindungsaggregats mit dem Bahnende der Ablaufbahn durch Kleben oder dergleichen verbunden wird. Weiterhin betrifft die Erfindung eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for connecting material webs from packaging material, namely a web start of a web of material wound as a bobbin - new bobbin - new web - with a web end of a web of material - runoff web - running off from another bobbin - drain bobbin - the web start of the new web by a Puller is moved into a region of a connecting unit and is connected in the region of the connecting unit to the end of the runway by gluing or the like. Furthermore, the invention relates to a device for performing the method.

Ein solches Verfahren und eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 3 sind bekannt aus der EP-A-0 299 181. Der Bahnanfang einer Neubobine wird durch eine Bedienperson an eine Traverse angelegt. Sodann schneidet die Bedienperson ein überstehendes Ende des Bahnanfangs manuell ab und erzeugt so einen neuen Bahnanfang. Schließlich wird der (neue) Bahnanfang in eine Position zum Splicen der neuen Materialbahn mit der alten Materialbahn bewegt.Such a method and a device according to the preamble of claim 3 are known from EP-A-0 299 181. The beginning of the path of a new bobbin is placed on a traverse by an operator. The operator then manually cuts off a protruding end of the path start and thus creates a new path start. Finally, the (new) web start is moved into a position for splicing the new material web with the old material web.

Der Erfindung liegt die Aufgabe zugrunde, mit Hilfe einfacher Organe einen zuverlässigen, vollautomatischen Anschluß der Neubahn einer Neubobine an die Ablaufbahn zu gewährleisten.The invention has for its object to ensure a reliable, fully automatic connection of the new track of a new bobbin to the runway using simple organs.

Zur Lösung dieser Aufgabe ist das erfindungsgemäße Verfahren gekennzeichnet durch folgende Verfahrensschritte:

  • a) der Bahnanfang der Neubahn wird durch das Abziehorgan auf dem Umfang der Neubobine erfaßt,
  • b) der Bahnanfang wird sodann von der Neubobine abgezogen, und zwar unter Abziehen eines Bahnabschnitts (29) in einem einzigen Fördertakt bis in den Bereich des Verbindungsaggregats bzw. über diesen hinaus,
  • c) die Neubahn wird bis zur Verbindung der Neubahn mit der Ablaufbahn gehalten,
  • d) der Bahnabschnitt der Neubahn und ein Bereich der Ablaufbahn werden aneinandergelegt und gemeinsam durchtrennt, derart, daß das Bahnende der Ablaufbahn und der Bahnanfang der Neubahn benachbart zueinander liegen,
  • e) schließlich werden das Bahnende und der Bahnanfang miteinander verbunden.
To achieve this object, the method according to the invention is characterized by the following method steps:
  • a) the beginning of the path of the new path is detected by the puller on the circumference of the new bobbin,
  • b) the beginning of the web is then pulled off the new bobbin, specifically by pulling off a web section (29) in a single conveying cycle up to or beyond the region of the connecting unit,
  • c) the new line is held until the new line connects to the runway,
  • d) the path section of the new path and an area of the run-off path are placed next to one another and severed together in such a way that the end of the path of the run-path and the start of the path of the new path lie adjacent to one another,
  • e) finally the web end and the web start are connected to each other.

Die erfindungsgemäße Vorrichtung ist zur Lösung dieser Aufgabe dadurch gekennzeichnet, daß der Halter mit der Neubahn bzw. einem Bahnabschnitt von dem Förderer durch das Verbindungsaggregat hindurchförderbar ist.To achieve this object, the device according to the invention is characterized in that the holder with the new track or a track section can be conveyed through the connecting unit by the conveyor.

Das im Sinne der Erfindung ausgebildete Abziehorgan ist vorzugsweise ein in vertikaler Ebene hin- und herbewegbarer Schwenkarm, der am freien Ende eine Halterung, insbesondere eine Saugbohrungen aufweisende Aufnahmerolle aufweist. Diese erfaßt ein Endstück der Neubahn und fixiert dieses durch Aufwickeln und Saugluft. Dabei ist von Bedeutung, daß das Abziehorgan die Neubahn an der Neubobine erfaßt, von dieser abzieht und bis in die Position zum Verbinden mit der Ablaufbahn transportiert. Das Abziehorgan bzw. der Halter für die Neubahn wird demnach mit der Neubahn durch das Verbindungsaggregat hindurchgefördert und in einer für den Verbindungsvorgang günstigen Position gehalten.The puller designed in the sense of the invention is preferably a swivel arm which can be moved back and forth in the vertical plane and which has a holder at the free end, in particular a take-up roller having suction bores. This captures an end piece of the new web and fixes it by winding and suction air. It is important that the puller grips the new web on the new web, pulls it off and transports it to the position for connection to the runway. The pulling device or the holder for the new web is accordingly conveyed through the connecting unit with the new web and held in a position which is favorable for the connecting process.

Im Bereich des Verbindungsaggregats werden Neubahn und Ablaufbahn gegeneinander gedrückt, gemeinsam durchtrennt und dann zur Bildung einer fortlaufenden Bahn miteinander verbunden. Danach kehrt das Abziehorgan in die Ausgangsstellung zurück.In the area of the connecting unit, the new web and the runway are pressed against one another, severed together and then connected to one another to form a continuous web. The pulling device then returns to the starting position.

Weitere Merkmale der Erfindung betreffen die Ausgestaltung und Arbeitsweise des Abziehorgans sowie des Verbindungsaggregats.Further features of the invention relate to the design and mode of operation of the pulling device and of the connecting unit.

Ausführungsbeispiele der erfindungsgemäßen Vorrichtung und deren Arbeitsweise werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigt:

Fig. 1
eine schematische Seitenansicht der kompletten Verbindungsvorrichtung für Materialbahnen,
Fig. 2
eine Einzelheit der Vorrichtung in Draufsicht, nämlich ein Abziehorgan für eine neue Materialbahn, in vergrößertem Maßstab,
Fig. 3
eine Einzelheit der Fig. 2 mit einer Alternative hinsichtlich eines Details, in nochmals vergrößertem Maßstab,
Fig. 4 bis Fig. 6
verschiedene Positionen eines Kopfes des Abziehorgans bei der Aufnahme einer neuen Materialbahn in Seitenansicht,
Fig. 7
ein Bahnverbindungsaggregat in Seitenansicht, teilweise im Vertikalschnitt,
Fig. 8 bis Fig. 12
verschiedene Positionen im Bereich des Bahnverbindungsaggregats während des Verbindens einer neuen Materialbahn mit einer ablaufenden Materialbahn.
Exemplary embodiments of the device according to the invention and their mode of operation are explained in more detail below with reference to the drawings. It shows:
Fig. 1
a schematic side view of the complete connecting device for material webs,
Fig. 2
a detail of the device in plan view, namely a puller for a new material web, on an enlarged scale,
Fig. 3
3 shows a detail of FIG. 2 with an alternative with regard to a detail, on a further enlarged scale,
4 to 6
different positions of a head of the puller when taking up a new material web in side view,
Fig. 7
a rail connection unit in side view, partially in vertical section,
8 to 12
different positions in the area of the web connection unit while connecting a new material web with a running material web.

In den Zeichnungen ist ein Ausführungsbeispiel für eine Bahnverbindungsvorrichtung dargestellt, welche in Verbindung mit einer Verpackungsmaschine zum Einsatz kommt. Insbesondere ist dieses Aggregat einsetzbar bei Zigaretten-Verpackungsmaschinen. Die zu handhabenden Materialbahnen bestehen aus Verpackungsmaterial, zum Beispiel aus Papier, Kunststoff oder Stanniol.In the drawings, an embodiment of a web connecting device is shown, which is used in connection with a packaging machine. In particular, this unit can be used in cigarette packaging machines. The material webs to be handled consist of packaging material, for example of paper, plastic or tinfoil.

Der Verpackungsmaschine wird bei kontinuierlicher Förderung eine ablaufende Materialbahn, also eine Ablaufbahn 10, zugeführt. Diese wird von einer Bobine abgezogen, nämlich von einer Ablaufbobine 11. Eine zweite, "volle" Bobine, also eine Neubobine 12, wird bereitgehalten. Es geht darum, nach Verbrauch der Ablaufbobine 11 eine von der Neubobine 12 abzuziehende Neubahn 13 an die Ablaufbahn 10 anzuschliessen.With continuous conveyance, the packaging machine is supplied with a running material web, that is to say a running web 10. This is subtracted from a bobbin, namely from a drain bobbin 11. A second, "full" bobbin, ie a new bobbin 12, is kept ready. After the drain bobbin 11 has been used up, it is a matter of connecting a new track 13 to be pulled off the new bobbin 12 to the drain track 10.

Die beiden Bobinen, nämlich Ablaufbobine 11 und Neubobine 12, sind an einer zweiarmigen Schwinge 14 drehbar und vorzugsweise motorisch angetrieben gelagert. Freie Enden der Schwinge 14 sind als Gabel 15 ausgebildet. Dadurch ist die Zuführung von neuen, vollen Bobinen zur Bahnverbindungsvorrichtung erleichtert. Wie in Fig. 1 in gestrichelten Linien gezeigt, wird zur Aufnahme einer neuen Bobine die Schwinge 14 in eine aufrechte Position gedreht. In jeder Gabel 15 ist ein Tragzapfen 16, 17 zur Aufnahme einer Bobine schwenkbar gelagert. In einer horizontal gerichteten Stellung, also quer zur Schwinge 14, befinden sich die Tragzapfen 16, 17 in Arbeitsstellung. Die Materialbahnen können von der jeweiligen Bobine abgezogen werden. Zur Zuführung einer neuen Bobine wird der Tragzapfen 16 oder 17 der jeweils nach oben gerichteten Gabel 15 in eine aufrechte Position geschwenkt. Nunmehr kann von oben her eine neue Bobine auf den Tragzapfen 16, 17 aufgesetzt werden.The two bobbins, namely drain bobbins 11 and new bobbins 12, are rotatably mounted on a two-armed rocker 14 and are preferably driven by a motor. Free ends of the rocker 14 are designed as a fork 15. This facilitates the feeding of new, full bobbins to the web connecting device. As shown in dashed lines in Fig. 1, the rocker 14 is rotated into an upright position to accommodate a new bobbin. In each fork 15, a support pin 16, 17 is pivotally mounted for receiving a bobbin. In a horizontally directed position, that is to say transversely to the rocker 14, the support pins 16, 17 are in the working position. The material webs can be pulled off the respective bobbin. To feed a new bobbin, the support pin 16 or 17 of the fork 15 which is directed upwards is pivoted into an upright position. A new bobbin can now be placed on the support pins 16, 17 from above.

Zur Bahnverbindungsvorrichtung gehören zwei Teilaggregate. Zum einen handelt es sich um ein Organ zur Aufnahme der Neubahn 13 bei Beginn des Vorgangs der Bahnverbindung. Zum anderen ist ein Verbindungsaggregat 18 vorgesehen, welches die Verbindung zwischen der Ablaufbahn 10 und der Neubahn 13 herstellt.Two sub-assemblies belong to the rail connection device. On the one hand, there is an organ for receiving the new train 13 at the start of the process of the rail connection. On the other hand, a connection unit 18 is provided, which establishes the connection between the runway 10 and the new path 13.

Die Ablaufbobine 11 wird durch geeignete, bekannte Überwachungsorgane in bezug auf die vorhandene Restgröße überwacht. Rechtzeitig wird der Anschluß der Neubahn 13 an die Ablaufbahn 10 vorbereitet. Die Schwinge 14 befindet sich in einer schräg gerichteten Position, bei der sich die Ablaufbobine 11 unten und die Neubobine 12 oben befindet. Es geht jetzt darum, ein Vorderende 19 der Neubahn 13 zu erfassen und dem Verbindungsaggregat 18 zuzuführen. Hierfür ist ein Abziehorgan 20 vorgesehen. Dieses ist hier als Schwenkarm 21 ausgebildet, der in vertikaler Ebene zwischen einer Aufnahmeposition (gestrichelt dargestellt) an der Neubobine 12 und einer Übergabeposition im Bereich des Verbindungsaggregats 18 hin- und herbewegbar ist. Am freien Ende des Schwenkarms 21 befindet sich ein Aufnahmekopf für das Vorderende 19, bei dem vorliegenden Ausführungsbeispiel eine drehbare Aufnahmerolle 22. Diese ist mit einer Mehrzahl von radial gerichteten Saugbohrungen 23 versehen, die an eine Unterdruckquelle angeschlossen sind.The drain bobbin 11 is monitored by suitable, known monitoring bodies with regard to the remaining size. The connection of the new runway 13 to the runway 10 is prepared in good time. The rocker 14 is in an obliquely directed position, in which the drain bobbin 11 is at the bottom and the new bobbin 12 is at the top. It is now a matter of detecting a front end 19 of the new web 13 and feeding it to the connecting unit 18. A puller 20 is provided for this. This is designed here as a swivel arm 21, which is in the vertical plane between a receiving position (shown in dashed lines) on the new bobbin 12 and a transfer position in the area of the connecting unit 18 can be moved back and forth. At the free end of the swivel arm 21 there is a receiving head for the front end 19, in the present exemplary embodiment a rotatable receiving roller 22. This is provided with a plurality of radially directed suction bores 23 which are connected to a vacuum source.

Die Neubahn 13 ist lösbar, nämlich durch eine abziehbare Klebung (peel-Verbindung), mit einer darunterliegenden Wickellage 24 der Neubobine 12 verbunden. Die Befestigung eines dem Vorderende 19 zugekehrten Bereichs der Neubahn 13 ist so gewählt, daß ein freiliegendes, also nicht befestigtes Endstück 25 von beispielsweise mehreren Zentimetern Länge gebildet ist. Das freie Endstück 25 kann auch durch einen Klebestreifen 26 gebildet sein, mit dem das Vorderende 19 der Neubahn 13 an der Wickellage 24 befestigt ist. Der Klebestreifen 26 weist einen Klebebereich 27 auf, der das Vorderende 19 fixiert und das klebstofffreie Endstück 25.The new web 13 is detachable, namely by means of a peel-off adhesive, connected to an underlying winding layer 24 of the new bobbin 12. The attachment of an area of the new track 13 facing the front end 19 is selected such that an exposed, ie non-attached end piece 25 of, for example, several centimeters in length is formed. The free end piece 25 can also be formed by an adhesive strip 26 with which the front end 19 of the new web 13 is fastened to the winding layer 24. The adhesive strip 26 has an adhesive area 27 which fixes the front end 19 and the adhesive-free end piece 25.

Bei der Ausführungsform gemäß Fig. 3 ist die Neubahn 13 durch Klebung 28 mit der Wickellage 24 verbunden. Diese ist mit Abstand vom Vorderende 19 angebracht, so daß das freie Endstück 25 entsteht. Das Abziehorgan 20 erfaßt das freie Endstück 25 und zieht sodann einen Bahnabschnitt 29 unter Lösen der Klebeverbindung von der Neubobine 12 ab. Entsprechend wird bei der Aufnahme der Neubahn 13 verfahren, wenn diese mit einem Klebestreifen 26 fixiert ist (Fig. 2). Die Aufnahmerolle 22 ist zum sicheren Erfassen des Endstücks 25 besonders im mittleren Bereich mit einer Mehrzahl von Saugbohrungen 23 versehen, nämlich mit zwei eng beieinanderliegenden Kränzen von Saugbohrungen 23, insbesondere im Bereich des Klebestreifens 26.In the embodiment according to FIG. 3, the new web 13 is connected to the winding layer 24 by adhesive 28. This is attached at a distance from the front end 19 so that the free end piece 25 is formed. The puller 20 grasps the free end piece 25 and then pulls a web section 29 from the new bobbin 12 while releasing the adhesive connection. The procedure for receiving the new web 13 is similar if it is fixed with an adhesive strip 26 (FIG. 2). The pick-up roller 22 is provided with a plurality of suction bores 23 for securely gripping the end piece 25, particularly in the central region, namely with two closely spaced rings of suction bores 23, in particular in the region of the adhesive strip 26.

Zur Aufnahme des Endstücks 25 durch das Abziehorgan 20 wird der Kopf, also die Aufnahmerolle 22, bis zur Anlage an der Umfangsfläche der Neubobine 12 bewegt. Diese wird nun drehend angetrieben, und zwar in Abwickelrichtung, also in Richtung der Abzugsbewegung der Neubahn 13 entsprechend Richtungspfeil 30. Die Aufnahmerolle 22 wird entsprechend in gegensinniger Richtung drehend angetrieben. Die Drehbewegungen werden solange durchgeführt, bis das freie Endstück 25 am Umfang der Aufnahmerolle 22 anliegt und durch die Saugbohrungen 23 erfaßt ist (Fig. 5). Nun wird auf das Endstück 25 und die Klebeverbindung eine abziehende Kraft ausgeübt, bis ein ausreichendes Bahnstück von der Aufnahmerolle 22 erfaßt ist.In order to receive the end piece 25 by the puller 20, the head, that is to say the take-up roller 22, is moved until it rests on the peripheral surface of the new bobbin 12. This is now driven in rotation, specifically in the unwinding direction, that is to say in the direction of the withdrawal movement of the new web 13 in accordance with the direction arrow 30. The take-up roller 22 is driven in a correspondingly rotating manner in the opposite direction. The rotary movements are carried out until the free end piece 25 abuts the circumference of the take-up roller 22 and is gripped by the suction bores 23 (FIG. 5). A pulling force is now exerted on the end piece 25 and the adhesive connection until a sufficient track piece is gripped by the take-up roll 22.

Das Abziehorgan bzw. dessen Schwenkarm 21 wird nun in Richtung zum Verbindungsaggregat 18 bewegt und über dieses hinaus. Die Abziehbewegung der Neubahn 13 bzw. des Bahnabschnitts 29 geht soweit, daß dieser an der Unterseite einer Druckplatte 31 des Verbindungsaggregats 18 anliegt (Position gemäß Fig. 8). Die Neubahn 13 bzw. der zur Verbindung mit der Ablaufbahn 10 vorgesehene Bahnabschnitt 29 wird demnach durch das Abziehorgan 20 in einem Bewegungstakt von der Aufnahmeposition an der Neubobine 12 bis zur Endstellung im Bereich des Verbindungsaggregats 18 bewegt. Bis zur Einleitung des eigentlichen Vorgangs der Bahnverbindung wird der Bahnabschnitt 29 durch das Abziehorgan 20 positionsgerecht gehalten. Während des Abziehvorgangs kann die Neubobine 12 zusätzlich motorisch in Drehrichtung angetrieben sein. Die Bewegungsebene des Schwenkarms 21 liegt außerhalb des bzw. neben dem Verbindungsaggregat 18.The puller or its swivel arm 21 is now moved in the direction of the connecting unit 18 and beyond it. The pulling-off movement of the new web 13 or of the web section 29 goes so far that it lies against the underside of a pressure plate 31 of the connecting unit 18 (position according to FIG. 8). The new track 13 or the track section 29 provided for connection to the run-off track 10 is accordingly moved by the pulling member 20 in one movement cycle from the pick-up position on the new reel 12 to the end position in the area of the connecting unit 18. Until the actual process of the web connection is initiated, the web section 29 is held in the correct position by the pulling member 20. During the removal process, the new bobbin 12 can also be driven by a motor in the direction of rotation. The plane of movement of the swivel arm 21 lies outside of or next to the connecting unit 18.

Das Verbindungsaggregat 18 hat die Aufgabe, ein Bahnende 32 der Ablaufbahn 10 und einen Bahnanfang 33 der Neubahn 13 zu bilden, in exakter Relativstellung, nämlich unmittelbar benachbart zueinander, zu positionieren und sodann miteinander zu verbinden.The connecting unit 18 has the task of forming a path end 32 of the run-off path 10 and a path start 33 of the new path 13, to position it in an exact relative position, namely immediately adjacent to one another, and then to connect it to one another.

Zu diesem Zweck werden Ablaufbahn 10 und Neubahn 12 im Bereich des Verbindungsaggregats aneinander gelegt und gemeinsam durchtrennt. Dadurch liegen Bahnende 32 und Bahnanfang 33 unmittelbar nebeneinander. Ablaufbahn 10 und Neubahn 13 können so lückenlos miteinander verbunden werden.For this purpose, runway 10 and new runway 12 are placed next to one another in the region of the connecting unit and severed together. As a result, web end 32 and web start 33 lie directly next to one another. Runway 10 and new runway 13 can thus be connected to one another without gaps.

Die besondere Ausbildung des Verbindungsaggregats und die Zuführung der Neubahn 13 zu diesem in einem Bewegungstakt des Abziehorgans 20 ermöglicht eine positionsgenaue Übergabe der Neubahn 13 bzw. des Bahnabschnitts 29 an das Verbindungsaggregat 18. Es kann auf diese Weise die exakte Lage des Trennschnitts durch die Bahnen bestimmt werden. Dies ist wichtig, wenn die Materialbahnen eine Bedruckung aufweisen, zum Beispiel die eines Zuschnitts für eine Verpackung. Beide Bahnen, also Ablaufbahn 10 und Neubahn 13 können durch geeignete Sensoren 34, 35, die jeder Bahn zugeordnet sind, mit Hilfe von Druckmarken gesteuert werden. Die von den Sensoren 34, 35 abgetasteten Druckmarken erzeugen ein Steuersignal auf Antriebsorgane für die Bahnen, derart, daß diese positionsgenau im Bereich des Verbindungsaggregats 18 angehalten werden.The special design of the connecting unit and the feeding of the new web 13 to it in one movement cycle of the pulling device 20 enables the new web 13 or the web section 29 to be transferred to the connecting unit 18 in an exact position. In this way, the exact position can be achieved of the separating cut can be determined by the webs. This is important if the material webs have a print, for example that of a blank for packaging. Both lanes, that is to say runway 10 and new lane 13, can be controlled by suitable sensors 34, 35, which are assigned to each lane, with the aid of print marks. The printed marks sensed by the sensors 34, 35 generate a control signal on drive elements for the webs in such a way that they are stopped in the exact position in the area of the connecting unit 18.

Das Verbindungsaggregat 18 besteht aus der Druckplatte 31 und einem Gegendruckorgan, nämlich einem Druckstück 36 auf der freien Seite der Ablaufbahn 10, also unten.The connecting unit 18 consists of the pressure plate 31 and a counter-pressure element, namely a pressure piece 36 on the free side of the runway 10, that is, below.

Die Ablaufbahn 10, die sich bei dem vorliegenden Ausführungsbeispiel unterhalb der Neubahn 13 befindet, wird im Bereich des Verbindungsaggregats 18 durch Umlenkwalzen 37, 38 geführt. Diese befinden sich an einem Tragstück 39, an dem auch das Druckstück 36 angebracht ist. Das Tragstück 39 ist mit dem Druckstück 36 und den Umlenkwalzen 37, 38 auf und abbewegbar. Eine untere Stellung entspricht der Arbeitsstellung während des Abziehens der Ablaufbahn 10 (gestrichelte Darstellung in Fig. 1). In dieser Position kann in der beschriebenen Weise der Bahnabschnitt 29 der Neubahn 13 in den Bereich des Verbindungsaggregats 18 bewegt werden.The run-off track 10, which in the present exemplary embodiment is located below the new track 13, is guided in the region of the connecting unit 18 by deflection rollers 37, 38. These are located on a support piece 39, on which the pressure piece 36 is also attached. The support piece 39 can be moved up and down with the pressure piece 36 and the deflection rollers 37, 38. A lower position corresponds to the working position during the removal of the runway 10 (dashed line in FIG. 1). In this position, the web section 29 of the new web 13 can be moved into the region of the connecting unit 18 in the manner described.

Bei der Aufwärtsbewegung des Tragstücks 39 und der damit verbundenen Aufwärtsbewegung des Druckstücks 36 wird die Ablaufbahn 10 auf der ablaufenden Seite bzw. auf der der Verpackungsmaschine zugekehrten Seite durch das Druckstück 36 an die Neubahn 13 und mit dieser an die Druckplatte 31 gedrückt. Die Ablaufbahn 10 ist nun stillgesetzt. Während des nun folgenden Vorgangs der Bahnverbindung kann die verarbeitende Maschine (Verpackungsmaschine) weiterlaufen. Das erforderliche Bahnmaterial wird während dieser Zeit aus einem Bahnspeicher 40 gezogen, der hier als Mehrfachschwinge ausgebildet ist. Die verarbeitende Maschine wird während dieser Phase mit reduzierter Leistung gefahren (Kriechgang).During the upward movement of the support piece 39 and the associated upward movement of the pressure piece 36, the run-off track 10 on the downward side or on the side facing the packaging machine is pressed by the pressure piece 36 against the new track 13 and with it onto the pressure plate 31. The runway 10 is now stopped. During the now following process of the web connection, the processing machine (packaging machine) can continue to run. During this time, the required web material is drawn from a web store 40, which is designed here as a multiple rocker. The processing machine is operated with reduced power during this phase (crawl gear).

Während die Ablaufbahn 10 in der beschriebenen Position an die Neubahn 13 bzw. an die Druckplatte 31 gedrückt wird, erfolgt ein Trennschnitt durch beide Bahnen. Zu diesem Zweck wird ein Trennmesser 41 quer zu den Bahnen bewegt. Das Trennmesser 41 läuft in einer Nut 42 der Druckplatte 31. Das Trennmesser 41 ist hier an einem Schlitten 43 angebracht, der auf quer gerichteten Führungsstangen 44 verschiebbar ist.While the run-off track 10 is pressed against the new track 13 or the pressure plate 31 in the position described, a cut is made through both tracks. For this purpose, a cutting knife 41 is moved across the webs. The separating knife 41 runs in a groove 42 of the pressure plate 31. The separating knife 41 is attached here to a carriage 43 which can be moved on transverse guide rods 44.

Nach Ausführung des Trennschnitts ist ein der leergefahrenen Ablaufbobine 11 zugekehrtes Bahnstück 45 frei. Aufgrund der erhöhten Spannung in der Ablaufbahn 10 wird dieses Bahnstück 45 selbsttätig aus dem Bereich des Verbindungsaggregats 18 zurückgezogen (Fig. 10).After the separating cut has been made, a path piece 45 facing the empty drain bobbin 11 is free. Due to the increased tension in the run-off track 10, this track section 45 is automatically withdrawn from the area of the connecting unit 18 (FIG. 10).

Die übrigen aufgrund des Trennschnitts entstehenden Bahnteile werden in der vorgegebenen Position innerhalb des Verbindungsaggregats 18 gehalten. Der geteilte Bahnabschnitt 29 der Neubahn 13 wird an der Druckplatte 31 durch Saugluft gehalten, der über Bohrungen 46 an der nach unten gerichteten Anlagefläche der Druckplatte 31 erzeugt wird. Darüber hinaus wird ein der Aufnahmerolle 22 zugekehrtes Teilstück zusammen mit der verbliebenen Ablaufbahn 10 durch das Druckstück 36 gehalten.The remaining web parts resulting from the separating cut are held in the predetermined position within the connecting unit 18. The divided web section 29 of the new web 13 is held on the pressure plate 31 by suction air, which is generated via bores 46 on the downward contact surface of the pressure plate 31. In addition, a section facing the take-up roll 22 is held together with the remaining runway 10 by the pressure piece 36.

Durch die Beseitigung des Bahnstücks 45 der Ablaufbahn 10 liegen nunmehr die miteinander zu verbindenden Bahnränder, nämlich das Bahnende 32 einerseits und der Bahnanfang 33 andererseits nach unten frei nebeneinander. Dadurch kann nun von der freien Seite her ein Verbindungsmittel an beiden Bahnen angebracht werden, im vorliegenden Falle ein quer zu den Bahnen verlaufender, klebender Verbindungsstreifen 47. Dieser wird im vorliegenden Fall von unten her gegen Bahnende 32 und Bahnanfang 33 gedrückt, so daß dadurch Ablaufbahn 10 und Neubahn 13 miteinander verbunden sind.By eliminating the track section 45 of the run-off track 10, the track edges to be connected to one another, namely the track end 32 on the one hand and the track start 33 on the other hand, are now freely adjacent to one another downwards. As a result, a connecting means can now be attached to the two webs from the free side, in the present case an adhesive connecting strip 47 running transversely to the webs 10 and new course 13 are connected.

Zur Handhabung des Verbindungsstreifens 47 ist am Tragstück 39 ein auf- und abbewegbarer Streifengeber 48 angebracht. Es handelt sich dabei im vorliegenden Falle um einen schwenkbaren Arm mit quer gerichtetem Schenkel und einer Haltefläche 49 für den Verbindungsstreifen. Durch Verschwenken aus einer nach unten gerichteten vertikalen Stellung in eine obere, horizontale Stellung (Fig. 11) wird der Verbindungsstreifen 47 von unten her gegen die Bahnen gedrückt. Das Druckstück 36 ist mit dem notwendigen Abstand von Bahnende 32 und Bahnanfang 33 positioniert.In order to handle the connecting strip 47, a strip encoder 48 which can be moved up and down is attached to the support piece 39. In the present case, it is a swiveling arm with a transverse arm and a holding surface 49 for the connecting strip. By swiveling from a downward vertical position in an upper, horizontal position (Fig. 11), the connecting strip 47 is pressed from below against the webs. The pressure piece 36 is positioned at the necessary distance from the web end 32 and the web start 33.

Nach dem Anbringen des Verbindungsstreifens 47 an Ablaufbahn 10 und Neubahn 13 wird das Tragstück 39 mit dem Druckstück 36 und den Umlenkwalzen 37, 38 abgesenkt (Fig. 12). Die nunmehr durchgehende (neue) Ablaufbahn 10 wird jetzt weitertransportiert. Die bisherige Neubahn 13 wird durch Schwenkbewegung der Schwinge 14 in die untere Position der Ablaufbobine 11 bewegt. Das bei diesem Vorgang ebenfalls frei gewordene Reststück der Neubahn 13 bzw. des Bahnabschnitts 29 an dem Abziehorgan 20 wird aus dem Bereich des Verbindungsaggregats 18 herausbewegt und dann von der Aufnahmerolle 22 abgezogen.After the attachment of the connecting strip 47 to the run-off track 10 and the new track 13, the support piece 39 with the pressure piece 36 and the deflection rollers 37, 38 is lowered (FIG. 12). The now continuous (new) runway 10 is now transported on. The previous new track 13 is moved into the lower position of the drain bobbin 11 by pivoting the rocker 14. The remaining piece of the new web 13 or the web section 29 on the puller 20, which has also become free during this process, is moved out of the area of the connecting unit 18 and then pulled off the take-up roll 22.

In der unteren Stellung des Druckstücks 36 wird der Streifengeber 48 mit einem neuen Verbindungsstreifen beschickt. Hierfür ist ein in geeigneter Weise ausgebildetes Übertragungsorgan 50 vorgesehen, welches den Verbindungsstreifen 47 an die Haltefläche 49 anlegt. Der Verbindungsstreifen 47 wird an dieser durch Saugluft über Saugbohrungen 51 gehalten.In the lower position of the pressure piece 36, the strip dispenser 48 is loaded with a new connecting strip. For this purpose, a suitably designed transmission element 50 is provided, which places the connecting strip 47 on the holding surface 49. The connecting strip 47 is held there by suction air via suction bores 51.

Claims (10)

  1. Process for connecting material webs of packaging material, namely a web beginning (33) of a material web - new web (13) - wound as a bobbin - new bobbin (12) - to a web end (32) of a material web - runoff web (10) - running off from another bobbin - runoff bobbin (11), the web beginning (33) of the new web (13) being moved by a drawing-off member (20) into a region of a connecting assembly (18) and being connected, in the region of the connecting assembly (18), to the web end (32) of the runoff web (10) by adhesive bonding or the like, characterized by the following process steps:
    a) the web beginning (33) of the new web (13) is gripped on the circumference of the new bobbin (12) by the drawing-off member (20),
    b) the web beginning (33) is then drawn off from the new bobbin (12), to be precise a web portion (29) being drawn off, in a single conveying cycle into the region of the connecting assembly (18) and beyond this,
    c) the new web (13) is retained until the new web (13) is connected to the runoff web (10),
    d) the web portion (29) of the new web (13) and a region of the runoff web (10) are laid against one another and severed jointly, such that the web end (32) of the runoff web (10) and the web beginning (33) of the new web (13) are located adjacent to one another,
    e) finally, the web end (32) and the web beginning (33) are connected to one another.
  2. Process according to Claim 1, characterized in that, after being separated off from the new web (13), the web portion (29) is conveyed away by the drawing-off member (20).
  3. Apparatus for connecting material webs of packaging material, namely a web beginning (33) of a new web (13), which is drawn off from a new bobbin (12) by a drawing-off member (20), to a web end (32) of a runoff web (10), running off from a runoff bobbin (11), in the region of a connecting assembly (18), having a conveyor which exhibits a retaining means for gripping a free end piece (25) of the new web (13), characterized in that the retaining means, along with the new web (13) or a web portion (29) of the new web (13), can be conveyed by the conveyor through the connecting assembly (18).
  4. Apparatus according to Claim 3, characterized in that the drawing-off member (20) is configured as a fixed pivot arm (21) which can be moved in an upright plane and at the free end of which the retaining means for gripping the end piece (25) of the new web (13) is fitted.
  5. Apparatus according to Claim 3 or 4, characterized in that the retaining means for gripping the end piece (25) of the new web (13) is a rotatable receiving roller (22) which exhibits suction bores (23) for gripping the new web (13) and onto which an end piece (25) of the new web (13) can be wound in order to retain said new web.
  6. Apparatus according to Claim 3 or one of the further claims, characterized in that the retaining means, in particular the receiving roller (22), along with the web portion (29) of the new web (13), can be moved, in the region of the connecting assembly (18), along the underside of a pressure plate (31) such that the web portion (29) rests, in the end position, on the underside of the pressure plate (31).
  7. Apparatus according to Claim 6, characterized in that, in the region of the connecting assembly (18), the new web (13) or the web portion (29) is retained on the underside of the fixed pressure plate (31) by suction air, and in that the runoff web (10) which is guided beneath the new web (13) can be pressed against said new web (13) or the pressure plate (31) by a pressure piece (36) which can be moved upwards out of a bottom position.
  8. Apparatus according to Claim 7, characterized in that, for the purpose of severing the abutting runoff web (10) and new web (13) in the region of the pressure plate (31), a transversely movable cutter (41) is arranged on that side of the pressure piece (36) which is directed towards the new bobbin (12).
  9. Apparatus according to Claim 7, characterized in that the cutter (41) is fitted on a displaceable carriage (43) which is displaceably mounted on guide rods (44) which are directed transversely with respect to the runoff web (10) and new web (13).
  10. Apparatus according to Claim 3, characterized in that a connecting strip (47) can be conveyed, by means of a strip-applying means (48) fitted pivotably on a carrying piece (39), against the free web end (32) and the likewise free web beginning (33) in order to connect web end (32) and web beginning (33) to one another, it being possible for the strip-applying means (48) to be moved up and down together with the carrying piece (39), and the strip-applying means (48), in a bottom end position, receiving the connecting strip (47) from a transfer member (50) and being pivotable in a top end position against web end (32) and web beginning (33).
EP94110785A 1993-08-03 1994-07-12 Method and device for joining webs of material, in particular packaging material Expired - Lifetime EP0638499B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4325944A DE4325944A1 (en) 1993-08-03 1993-08-03 Method and device for connecting material webs, in particular made of packaging material
DE4325944 1993-08-03

Publications (2)

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EP0638499A1 EP0638499A1 (en) 1995-02-15
EP0638499B1 true EP0638499B1 (en) 1996-05-29

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EP94110785A Expired - Lifetime EP0638499B1 (en) 1993-08-03 1994-07-12 Method and device for joining webs of material, in particular packaging material

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US (1) US5518202A (en)
EP (1) EP0638499B1 (en)
JP (1) JPH07144800A (en)
CN (1) CN1045938C (en)
BR (1) BR9403133A (en)
DE (2) DE4325944A1 (en)

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Also Published As

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CN1111585A (en) 1995-11-15
CN1045938C (en) 1999-10-27
DE4325944A1 (en) 1995-02-09
US5518202A (en) 1996-05-21
JPH07144800A (en) 1995-06-06
DE59400310D1 (en) 1996-07-04
EP0638499A1 (en) 1995-02-15
BR9403133A (en) 1995-04-11

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