EP0806390A1 - Device for replacing a first web by a second web - Google Patents

Device for replacing a first web by a second web Download PDF

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Publication number
EP0806390A1
EP0806390A1 EP97107446A EP97107446A EP0806390A1 EP 0806390 A1 EP0806390 A1 EP 0806390A1 EP 97107446 A EP97107446 A EP 97107446A EP 97107446 A EP97107446 A EP 97107446A EP 0806390 A1 EP0806390 A1 EP 0806390A1
Authority
EP
European Patent Office
Prior art keywords
plate
plates
web
receiving
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97107446A
Other languages
German (de)
French (fr)
Other versions
EP0806390B1 (en
Inventor
Hans Natterer
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller 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
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Publication of EP0806390A1 publication Critical patent/EP0806390A1/en
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Publication of EP0806390B1 publication Critical patent/EP0806390B1/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
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • 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
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46172—Processing webs in splicing process after splicing cutting webs in splicing process cutting expiring web only
    • 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

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • Such a device is known from WO 95/13235. While the web is drawn off from a first web reel and passed through the machine, a second web reel is placed in order to be connected immediately when the first web reel is used up. For this purpose, the new web windings each have a double-sided adhesive tape at their free ends of the web. The free end is firmly locked on the first or second plate. For the purpose of connecting to the end of the previous track, the first and second plates are shifted to below the third plate. The third plate holds the end of the previous lane. The two plates are then pressed against each other, whereby the two previous parts are connected to one another in sandwich form. The sandwich form is disadvantageous for operation. It is also disadvantageous that the two plates have to be moved towards the third plate, since the plates have to pull film with them.
  • the object of the invention is to provide a device which is improved with regard to the interchangeability of film coils and in particular the handling when exchanging different film webs. In particular, this should make it possible, for example, to process a large number of small orders in which frequent switching to different packaging materials, e.g. is necessary for each customer because of different imprints.
  • the packaging machine usually has a frame with an input side and an output side.
  • An endless chain runs between the input side and the output side Grippers that transport a lower film web fed on the input side towards the output side.
  • a plurality of work stations in particular a deep-drawing station and an evacuation and sealing station, are provided between the input side and the output side. Between these two, the containers formed in the deep-drawing station are filled.
  • An upper film is used in front of the evacuation and sealing station to cover and close the filled containers.
  • the cover film is usually printed with information identifying the product and / or its manufacturer or distributor in a predetermined repeat. Furthermore, printing marks are often applied, which serve to control the feed of the top film.
  • first plate 2 which can be pivoted about an axis 1 on the frame (not shown) and a second plate 3 which can be pivoted about the same axis 1.
  • the two plates are mounted at a fixed angle to one another and are each between a first and a second position pivoted back and forth, in which the first and the second plate lie in the horizontal position shown in FIG. 1.
  • the second plate is designed in such a way that the second plate 3 is connected to the first plate 4 via side arms 4 facing the axis 1, so that one rolled by a first film roll 5 and supplied first film web 6 can be passed between the legs 4.
  • first plate 2 Immediately adjacent to the first plate 2 follows a third plate 7 fixedly mounted on the frame, which is mounted so that the two upper sides of the second and third plates lie in one plane.
  • first or second and third plates 2, 3, 7 have, on their inclined sides, receiving areas 8, 8 ', 9 which extend over their entire cross section and with which one is distributed over the respective area
  • a plurality of bores 10 with a vacuum source via control valves 12, 13 connected is.
  • the control valves are connected to a controller 14 for their control.
  • a clamping device 15 is provided on the side of the receiving area 8 facing away from the third plate.
  • This comprises on the surface a recessed area 16 made of elastic plastic and a clamping lever 17 arranged above the surface of the second plate.
  • the clamping lever 17 is pivotable about an axis 18 extending parallel to the surface of the second plate and perpendicular to the direction of advance.
  • the length of the lever is chosen so that it lies with its free end facing away from the axis on the area 16 and due to the fact that its length is greater than the distance of the axis 18 from the surface of the second plate towards the third plate is inclined. It is thereby achieved that a film web lying between region 16 and the clamping lever 17 is freely movable when it is pulled through to the third plate, but is locked by clamping when moving in the opposite direction.
  • the second plate On the edge 19 facing the third plate 7, the second plate has a groove shown in the figures, which causes the edge to be a sharp edge over which the free end of the film web 6 defines over its entire width to produce a smooth edge is separable.
  • a holder 20 for receiving an adhesive tape roll 21 is provided on the machine frame.
  • the bracket is aligned so that the tape roll 21 receiving axis 21 'extends parallel to the surface of the second and third plates and in the direction of advance of the webs and is arranged so that the separation point between the second and third plates lies exactly in the middle of the tape roll .
  • the construction of the second plate 3 corresponds in all its features to the first plate.
  • a deflection roller 22 which extends transversely to the film web feed direction and is arranged such that a second film web fed by a second film winder 23 is arranged 24 is guided to the level of the third plate 3, as can best be seen from FIG. 2 or 3.
  • a ruler 25, 26 is arranged in the feed path of the first film web 6 and in the feed path of the second film web 24, which ruler has a predetermined distance from a reference point in the further feed path and thus a predetermined distance from the subsequent processing stations displays.
  • the two plates 2, 3 mounted at a fixed angle to one another are moved about the axis 1 into the position shown in FIG. 2 or in the position shown in FIG. 3 by means of a drive.
  • the drive is controlled via the controller 14.
  • the second film web 24 is pulled off the supply roll in the position shown in FIG. 2.
  • the film web runs over the first plate 2.
  • the controller recognizes the set position of the plates via a provided sensor and connects only the second plate to the vacuum source, so that the free end of the second film web 24 is held on the receiving area 8 '.
  • the first and third plates or their receiving areas are not connected to the vacuum source.
  • the second film web is advanced so far over the second plate that the print mark position relative to the marks on the ruler 26 results in a predetermined length or a predetermined distance from the subsequent work stations.
  • the free end of the second film web is by means of the groove 27 and the resulting cutting edge 19 cut exactly at an angle.
  • the control areas 14 connect the receiving areas 8, 9 to the vacuum source 11.
  • the operator uses a simple knife to sever the web previously fed via the first plate 2 between the second and third plates and swivels the first and second plates into the position shown in FIG. 3.
  • a piece of adhesive tape 40 is then pulled from the adhesive tape roll 21 with the adhesive side down over the now opposite web ends, and the two ends are connected to one another.
  • the machine can be started immediately, the web ends being fixed to the second and third plates by automatic actuation of the valves 12, 13. This process can be carried out in a few seconds and does not require any time-consuming adjustments.
  • the downtime is therefore limited to a short time, while set-up work and adjustments that require great care take place in the production time. Each further change takes place in the same sequence, only the function of the first and second plates 2, 3 being interchanged accordingly.
  • the first and second plates are pivotable about axis 1, and the third plate is arranged in a spatially fixed manner.
  • the third plate 30 can be pivoted back and forth between an first and a second angular position about an axis 31 at its end arranged away from the first 32 and second plate 33.
  • the first and second plates 32, 33 are then arranged so that they are spatially fixed in such a way that they are respectively aligned with the third plate 30 in the first and second positions and directly adjoin the adjacent end.
  • Separate adhesive tape rolls 34 are then arranged for each of the two positions.
  • the supply with vacuum and the control takes place according to the above first embodiment. The operation is carried out in the same manner as in the embodiment described first.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The machine has a strip of sheet material supplied from two coils (5,23). A plate (2) detects the start of the strip (6) from the first coil and a second plate detects that of the strip (24) from the second coil. A third plate (7) detects the ends of a third strip. The three plates are linked together, so that in a first setting the first and third plates have their surfaces accommodating the strips in line with their ends adjacent. In a second setting the second (3) and third plates are in line with their ends adjacent. At their ends furthest from the third plate the first and second ones can hinge on a common axis between the two settings. These two plates can be at a fixed angle to each other.

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device according to the preamble of patent claim 1.

Eine derartige Vorrichtung ist aus der WO 95/13235 bekannt. Während von einem ersten Bahnwickel die Bahn abgezogen und durch die Maschine geführt wird, wird ein zweiter Bahnwickel plaziert, um bei Aufbrauch des ersten Bahnwickels sofort angeschlossen zu werden. Zu diesem Zweck weisen die neuen Bahnwickel an ihren freien Enden der Bahn jeweils ein doppelseitiges Klebeband auf. Das freie Ende wird auf der ersten bzw. zweiten Platte fest arretiert. Zum Zwecke des Verbindens mit dem Ende der vorhergehenden Bahn wird die erste bzw. zweite Platte bis unter die dritte Platte verschoben. Die dritte Platte hält das Ende der vorhergehenden Bahn. Die beiden Platten werden dann gegeneinander gepreßt, wodurch die beiden vorigen Teile in Sandwichform miteinander verbunden werden. Für den Betrieb ist die Sandwichform nachteilig. Ferner ist es nachteilig, daß die beiden Platten zu der dritten Platte hin verschoben werden müssen, da die Platten Folie mit sich ziehen müssen.Such a device is known from WO 95/13235. While the web is drawn off from a first web reel and passed through the machine, a second web reel is placed in order to be connected immediately when the first web reel is used up. For this purpose, the new web windings each have a double-sided adhesive tape at their free ends of the web. The free end is firmly locked on the first or second plate. For the purpose of connecting to the end of the previous track, the first and second plates are shifted to below the third plate. The third plate holds the end of the previous lane. The two plates are then pressed against each other, whereby the two previous parts are connected to one another in sandwich form. The sandwich form is disadvantageous for operation. It is also disadvantageous that the two plates have to be moved towards the third plate, since the plates have to pull film with them.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die bezüglich der Auswechselbarkeit von Folienwickeln und insbesondere der Handhabung beim Austausch von verschiedenen Folienbahnen verbessert ist. Insbesondere soll es dadurch möglich werden, beispielsweise eine Mehrzahl von Kleinaufträgen abzuwickeln, bei denen ein häufiges Umstellen auf verschiedene Verpackungsmaterialien z.B. wegen verschiedener Aufdrucke für jeden Abnehmer notwendig ist.The object of the invention is to provide a device which is improved with regard to the interchangeability of film coils and in particular the handling when exchanging different film webs. In particular, this should make it possible, for example, to process a large number of small orders in which frequent switching to different packaging materials, e.g. is necessary for each customer because of different imprints.

Diese Aufgabe wird durch die in Patentanspruch 1 gekennzeichnete Vorrichtung gelöst.This object is achieved by the device characterized in claim 1.

Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Developments of the invention are characterized in the subclaims.

Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispieles anhand der Figuren. Von den Figuren zeigen:

Fig. 1
eine schematische Seitenansicht einer ersten Ausführungsform der Folienzuführung in einer ersten Stellung;
Fig. 2
eine schematische Seitenansicht eines Teiles der Verpackungsmaschine in einer ersten Stellung in vergrößertem Maßstab;
Fig. 3
dieselbe Darstellung in einer zweiten Betriebsstellung in vergrößertem Maßstab; und
Fig. 4
eine der Fig. 1 entsprechende Darstellung einer zweiten Ausführungsform.
Further features and advantages of the invention result from the description of an embodiment with reference to the figures. From the figures show:
Fig. 1
a schematic side view of a first embodiment of the film feed in a first position;
Fig. 2
is a schematic side view of part of the packaging machine in a first position on an enlarged scale;
Fig. 3
the same representation in a second operating position on an enlarged scale; and
Fig. 4
1 corresponding representation of a second embodiment.

Die Verpackungsmaschine weist in üblicher Weise einen Rahmen mit einer Eingangsseite und einer Ausgangsseite auf. Zwischen Eingangsseite und Ausgangsseite läuft eine Endloskette mit Greifern, die eine eingangsseitig zugeführte Unterfolienbahn in Richtung zur Ausgangsseite transportiert. Zwischen Eingangsseite und Ausgangsseite sind eine Mehrzahl von Arbeitsstationen, insbesondere eine Tiefziehstation und eine Evakuier- und Versiegelungsstation vorgesehen. Zwischen diesen beiden werden die in der Tiefziehstation geformten Behälter befüllt. Vor der Evakuier- und Versiegelungsstation wird eine Oberfolie zugeführt, die zum Abdecken und Verschließen der befüllten Behälter dient. Die Deckfolie ist üblicherweise mit einer das Produkt und/oder seinen Hersteller oder Vertreiber kennzeichnenden Information in einem vorgegebenen Rapport bedruckt. Ferner sind häufig Druckmarken aufgebracht, die zur Steuerung des Vorschubes der Oberfolie dienen. Fig. 1 zeigt eine an dem nicht gezeigten Rahmen um eine Achse 1 schwenkbare erste Platte 2 und eine um die gleiche Achse 1 schwenkbare zweite Platte 3. Die beiden Platten sind unter einem festen Winkel zueinander montiert und werden jeweils zwischen einer ersten und einer zweiten Stellung hin- und hergeschwenkt, in der die erste bzw. die zweite Platte in der in Fig. 1 gezeigten waagerechten Stellung liegen. Wie aus den vergrößerten Darstellungen in Fig. 2 und 3 ersichtlich ist, ist die zweite Platte so ausgebildet, daß die zweite Platte 3 über der Achse 1 zugewandte seitliche Schenkel 4 mit der ersten Platte verbunden ist, so daß eine von einem ersten Folienwickel 5 gerollte und zugeführte erste Folienbahn 6 zwischen den Schenkeln 4 hindurchführbar ist.The packaging machine usually has a frame with an input side and an output side. An endless chain runs between the input side and the output side Grippers that transport a lower film web fed on the input side towards the output side. A plurality of work stations, in particular a deep-drawing station and an evacuation and sealing station, are provided between the input side and the output side. Between these two, the containers formed in the deep-drawing station are filled. An upper film is used in front of the evacuation and sealing station to cover and close the filled containers. The cover film is usually printed with information identifying the product and / or its manufacturer or distributor in a predetermined repeat. Furthermore, printing marks are often applied, which serve to control the feed of the top film. 1 shows a first plate 2 which can be pivoted about an axis 1 on the frame (not shown) and a second plate 3 which can be pivoted about the same axis 1. The two plates are mounted at a fixed angle to one another and are each between a first and a second position pivoted back and forth, in which the first and the second plate lie in the horizontal position shown in FIG. 1. As can be seen from the enlarged representations in FIGS. 2 and 3, the second plate is designed in such a way that the second plate 3 is connected to the first plate 4 via side arms 4 facing the axis 1, so that one rolled by a first film roll 5 and supplied first film web 6 can be passed between the legs 4.

Unmittelbar angrenzend an die erste Platte 2 folgt eine am Rahmen fest montierte dritte Platte 7, die so montiert ist, daß die beiden Oberseiten der zweiten und dritten Platte in einer Ebene liegen. Wie aus den Figuren ersichtlich ist, weisen die erste bzw. zweite und die dritte Platte 2, 3, 7 an ihren einander zugeneigten Seiten sich über ihren gesamten Querschnitt erstreckende Aufnahmebereiche 8, 8', 9 auf, mit denen eine über den jeweiligen Bereich verteilte Vielzahl von Bohrungen 10 mit einer Vakuumquelle über Steuerventile 12, 13 verbunden ist. Die Steuerventile sind zu ihrer Ansteuerung mit einer Steuerung 14 verbunden.Immediately adjacent to the first plate 2 follows a third plate 7 fixedly mounted on the frame, which is mounted so that the two upper sides of the second and third plates lie in one plane. As can be seen from the figures, the first or second and third plates 2, 3, 7 have, on their inclined sides, receiving areas 8, 8 ', 9 which extend over their entire cross section and with which one is distributed over the respective area A plurality of bores 10 with a vacuum source via control valves 12, 13 connected is. The control valves are connected to a controller 14 for their control.

Wie aus den Figuren ersichtlich ist, ist auf der der dritten Platte abgewandten Seite des Aufnahmebereiches 8 eine Klemmeinrichtung 15 vorgesehen. Diese umfaßt auf der Oberfläche einen eingelassenen Bereich 16 aus elastischem Kunststoff und einen oberhalb der Oberfläche der zweiten Platte angeordneten Klemmhebel 17. Der Klemmhebel 17 ist um eine sich parallel zur Oberfläche der zweiten Platte und sich senkrecht zur Vorschubrichtung erstreckende Achse 18 schwenkbar angeordnet. Die Länge des Hebels ist so gewählt, daß er mit seinem der Achse abgewandten freien Ende auf dem Bereich 16 aufliegt und aufgrund der Tatsache, daß seine Länge größer ist als der Abstand der Achse 18 von der Oberfläche der zweiten Platte, zu der dritten Platte hin geneigt ist. Dadurch wird erreicht, daß eine zwischen Bereich 16 und dem Klemmhebel 17 liegende Folienbahn bei Durchzug zur dritten Platte hin frei bewegbar, bei einer Bewegung in entgegengesetzter Richtung aber durch Klemmen arretiert wird.As can be seen from the figures, a clamping device 15 is provided on the side of the receiving area 8 facing away from the third plate. This comprises on the surface a recessed area 16 made of elastic plastic and a clamping lever 17 arranged above the surface of the second plate. The clamping lever 17 is pivotable about an axis 18 extending parallel to the surface of the second plate and perpendicular to the direction of advance. The length of the lever is chosen so that it lies with its free end facing away from the axis on the area 16 and due to the fact that its length is greater than the distance of the axis 18 from the surface of the second plate towards the third plate is inclined. It is thereby achieved that a film web lying between region 16 and the clamping lever 17 is freely movable when it is pulled through to the third plate, but is locked by clamping when moving in the opposite direction.

An der der dritten Platte 7 zugewandten Kante 19 weist die zweite Platte eine in den Figuren dargestellte Nut auf, die bewirkt, daß die Kante ein scharfer Rand ist, über den das freie Ende der Folienbahn 6 definiert über seine gesamte Breite zur Erzeugung eines glatten Randes abtrennbar ist.On the edge 19 facing the third plate 7, the second plate has a groove shown in the figures, which causes the edge to be a sharp edge over which the free end of the film web 6 defines over its entire width to produce a smooth edge is separable.

Wie aus den Figuren ersichtlich ist, ist an dem Maschinenrahmen eine Halterung 20 zur Aufnahme einer Klebebandrolle 21 vorgesehen. Die Halterung ist so ausgerichtet, daß sich die die Klebebandrolle 21 aufnehmende Achse 21' parallel zur Oberfläche der zweiten und dritten Platte und in Vorschubrichtung der Bahnen erstreckt und so angeordnet ist, daß die Trennstelle zwischen zweiter und dritter Platte gerade in der Mitte der Klebebandrolle liegt.As can be seen from the figures, a holder 20 for receiving an adhesive tape roll 21 is provided on the machine frame. The bracket is aligned so that the tape roll 21 receiving axis 21 'extends parallel to the surface of the second and third plates and in the direction of advance of the webs and is arranged so that the separation point between the second and third plates lies exactly in the middle of the tape roll .

Die zweite Platte 3 stimmt in ihrem Aufbau in allen Merkmalen mit der ersten Platte überein. Oberhalb der durch die Oberflächen der zweiten und dritten Platte gebildeten Ebene, die auch der Ebene der zuzuführenden ersten Folienbahn 6 entspricht, ist eine sich quer zur Folienbahnzuführrichtung erstreckende Umlenkrolle 22 vorgesehen, die so angeordnet ist, daß eine von einem zweiten Folienwickel 23 zugeführte zweite Folienbahn 24 auf die Ebene der dritten Platte 3 geführt wird, wie dies am besten aus Fig. 2 oder 3 ersichtlich ist.The construction of the second plate 3 corresponds in all its features to the first plate. Above the plane formed by the surfaces of the second and third plates, which also corresponds to the plane of the first film web 6 to be fed, there is a deflection roller 22 which extends transversely to the film web feed direction and is arranged such that a second film web fed by a second film winder 23 is arranged 24 is guided to the level of the third plate 3, as can best be seen from FIG. 2 or 3.

Wie aus Fig. 1 ersichtlich ist, ist im Vorschubweg der ersten Folienbahn 6 und im Vorschubweg der zweiten Folienbahn 24 jeweils ein Lineal 25, 26 angeordnet, welches einen vorbestimmten Abstand zu einem Referenzpunkt in dem weiteren Vorschubweg und damit einen vorbestimmten Abstand zu den nachfolgenden Verarbeitungsstationen anzeigt.As can be seen from FIG. 1, a ruler 25, 26 is arranged in the feed path of the first film web 6 and in the feed path of the second film web 24, which ruler has a predetermined distance from a reference point in the further feed path and thus a predetermined distance from the subsequent processing stations displays.

Die beiden in einem festen Winkel zueinander montierten Platten 2, 3 werden über einen gezeigten Antrieb um die Achse 1 in die in Fig. 2 bzw. in die in Fig. 3 gezeigte Stellung bewegt. Die Ansteuerung des Antriebes erfolgt über die Steuerung 14.The two plates 2, 3 mounted at a fixed angle to one another are moved about the axis 1 into the position shown in FIG. 2 or in the position shown in FIG. 3 by means of a drive. The drive is controlled via the controller 14.

Im Betrieb wird in der in Fig. 2 gezeigten Stellung die zweite Folienbahn 24 von der Vorratsrolle abgezogen. Die Folienbahn verläuft über die erste Platte 2. Über einen vorgesehenen Sensor erkennt die Steuerung die eingestellte Position der Platten und verbindet nur die zweite Platte mit der Vakuumquelle, so daß das freie Ende der zweiten Folienbahn 24 auf dem Aufnahmebereich 8' gehalten wird. Solange die Maschine arbeitet, sind die erste und dritte Platte bzw. deren Aufnahmebereiche nicht mit der Vakuumquelle verbunden. Dabei ist die zweite Folienbahn so weit über die zweite Platte vorgezogen, daß sich aus der Druckmarkenposition relativ zu den Marken an dem Lineal 26 eine vorgegebene Länge bzw. ein vorgegebener Abstand bis zu den nachfolgenden Arbeitsstationen ergibt. Das freie Ende der zweiten Folienbahn ist mit Hilfe der Nut 27 bzw. der sich daraus ergebenden Schnittkante 19 exakt winklig geschnitten. Diese Vorbereitungen sind alle getätigt, ohne daß die Maschine anzuhalten ist.In operation, the second film web 24 is pulled off the supply roll in the position shown in FIG. 2. The film web runs over the first plate 2. The controller recognizes the set position of the plates via a provided sensor and connects only the second plate to the vacuum source, so that the free end of the second film web 24 is held on the receiving area 8 '. As long as the machine is working, the first and third plates or their receiving areas are not connected to the vacuum source. The second film web is advanced so far over the second plate that the print mark position relative to the marks on the ruler 26 results in a predetermined length or a predetermined distance from the subsequent work stations. The free end of the second film web is by means of the groove 27 and the resulting cutting edge 19 cut exactly at an angle. These preparations are all made without stopping the machine.

Sobald die Maschine angehalten wird, werden über die Steuerung 14 die Aufnahmebereiche 8, 9 mit der Vakuumquelle 11 verbunden. Die Bedienungsperson trennt mit einem einfachen Messer die bisher über die erste Platte 2 zugeführte Bahn zwischen der zweiten und der dritten Platte durch und schwenkt die erste und zweite Platte in die in Fig. 3 gezeigte Position. Es wird dann ein Stück Klebeband 40 von der Klebebandrolle 21 mit der Klebeseite nach unten über die nun gegenüberliegenden Bahnenden gezogen, und die beiden beiden Enden werden miteinander verbunden. Die Maschine kann sofort gestartet werden, wobei die Fixierung der Bahnenden an der zweiten und dritten Platte durch automatisches Ansteuern der Ventile 12, 13 erfolgt. Dieser Vorgang kann in wenigen Sekunden durchgeführt werden und erfordert keine zeitaufwendigen Justierungen. Die Stillstandszeit bleibt damit auf kurze Zeit beschränkt, während Einrichtearbeit und Justierungen, die hohe Sorgfalt erfordern, in der Produktionszeit erfolgen. Jeder weitere Wechsel erfolgt in gleicher Abfolge, wobei nur die Funktion der ersten und zweiten Platte 2, 3 entsprechend vertauscht sind.As soon as the machine is stopped, the control areas 14 connect the receiving areas 8, 9 to the vacuum source 11. The operator uses a simple knife to sever the web previously fed via the first plate 2 between the second and third plates and swivels the first and second plates into the position shown in FIG. 3. A piece of adhesive tape 40 is then pulled from the adhesive tape roll 21 with the adhesive side down over the now opposite web ends, and the two ends are connected to one another. The machine can be started immediately, the web ends being fixed to the second and third plates by automatic actuation of the valves 12, 13. This process can be carried out in a few seconds and does not require any time-consuming adjustments. The downtime is therefore limited to a short time, while set-up work and adjustments that require great care take place in the production time. Each further change takes place in the same sequence, only the function of the first and second plates 2, 3 being interchanged accordingly.

Bei der oben beschriebenen Ausführungsform sind die erste und zweite Platte um die Achse 1 schwenkbar, und die dritte Platte ist raumfest angeordnet. Nach einer in Fig. 4 gezeigten alternativen Ausführungsform ist die dritte Platte 30 um eine Achse 31 an ihrem der ersten 32 und zweiten Platte 33 abgewandten Ende angeordnete Achse zwischen einer ersten und einer zweiten Winkelstellung hin- und herschwenkbar. Die erste und zweite Platte 32, 33 sind dann getrennt so raumfest angeordnet, daß sie jeweils mit der dritten Platte 30 in der ersten bzw. zweiten Stellung fluchten und direkt an das benachbarte Ende angrenzen. Es sind dann für jede der beiden Positionen getrennte Klebebandrollen 34 angeordnet. Die Versorgung mit Vakuum und die Aussteuerung erfolgt entsprechend der obigen ersten Ausführungsform. Der Betrieb erfolgt in der gleichen Weise wie bei dem zuerst beschriebenen Ausführungsbeispiel.In the embodiment described above, the first and second plates are pivotable about axis 1, and the third plate is arranged in a spatially fixed manner. According to an alternative embodiment shown in FIG. 4, the third plate 30 can be pivoted back and forth between an first and a second angular position about an axis 31 at its end arranged away from the first 32 and second plate 33. The first and second plates 32, 33 are then arranged so that they are spatially fixed in such a way that they are respectively aligned with the third plate 30 in the first and second positions and directly adjoin the adjacent end. Separate adhesive tape rolls 34 are then arranged for each of the two positions. The supply with vacuum and the control takes place according to the above first embodiment. The operation is carried out in the same manner as in the embodiment described first.

Claims (10)

Vorrichtung zum Ersetzen einer ersten Bahn durch eine zweite Bahn mit
einer Einrichtung zum Aufnehmen eines ersten Bahnwickels und einer Einrichtung zum Aufnehmen eines zweiten Bahnwickels,
einer ersten Platte (2) zum Erfassen des Bahnanfanges der Bahn (6) des ersten Bahnwickels (5) und einer zweiten Platte (3) zum Erfassen des Bahnanfanges der Bahn (24) des zweiten Bahnwickels (23), und einer dritten Platte (7) zum Erfassen eines endseitigen Abschnittes einer dritten Bahn (28),
dadurch gekennzeichnet, daß die drei Platten so angelenkt sind, daß in einer ersten Stellung die erste und die dritte Platte (2, 7) und in einer zweiten Stellung die zweite und die dritte Platte (3, 7) mit ihren gegenüberliegenden Stirnflächen nahezu aneinandergrenzen und mit ihren beiden, die Folien aufnehmenden Oberflächen in einer Ebene liegen.Device for replacing a first web with a second web
a device for receiving a first web lap and a device for receiving a second web lap,
a first plate (2) for detecting the start of the path of the web (6) of the first web roll (5) and a second plate (3) for detecting the start of the path of the web (24) of the second roll (23), and a third plate (7 ) for detecting an end section of a third track (28),
characterized in that the three plates are articulated in such a way that in a first position the first and third plates (2, 7) and in a second position the second and third plates (3, 7) with their opposite end faces almost adjoin one another and with their two surfaces receiving the foils lie in one plane. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die erste und die zweite Platte auf ihrer der dritten Platte abgewandten Seite um eine gemeinsame Achse in die erste bzw. zweite Stellung schwenkbar sind.Apparatus according to claim 1, characterized in that the first and the second plate on their side facing away from the third plate are pivotable about a common axis in the first and second positions. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die beiden Platten um einen festen Winkel zueinander geneigt sind.Device according to claim 2, characterized in that the two plates are inclined at a fixed angle to one another. Vorrichtung nach einem der Ansprüche 1 bis 3, wobei jede Platte auf der Aufnahmefläche eine über die Fläche verteilte Vielzahl von Bohrungen aufweist, die mit einer Vakuumquelle verbindbar sind, dadurch gekennzeichnet, daß die erste und die zweite Platte auf ihrer der dritten Platte abgewandten Seite der die Bohrungen aufweisenden Aufnahmefläche eine Klemmeinrichtung aufweist, die die aufzunehmende Folie in Richtung zur dritten Platte hin freigibt und in entgegengesetzter Richtung gegen ein Verrutschen verriegelt.Device according to one of claims 1 to 3, wherein each plate on the receiving surface has a plurality of holes distributed over the surface, which can be connected to a vacuum source, characterized in that the first and second plates on their side facing away from the third plate the receiving surface having bores has a clamping device which releases the film to be picked up in the direction of the third plate and locks it in the opposite direction to prevent it from slipping. Vorrichtung nach einem der Ansprüche 1 bis 4, gekennzeichnet durch eine Aufnahmeeinrichtung für eine Klebebandrolle derart, daß deren Achse sich quer zur Vorschubrichtung erstreckt und die Rolle genau über der Verbindungsstelle zwischen der ersten und der dritten bzw. zweiten und dritten Platte liegt.Device according to one of claims 1 to 4, characterized by a receiving device for an adhesive tape roll in such a way that its axis extends transversely to the feed direction and the roll lies exactly above the connection point between the first and the third or second and third plate. Vorrichtung nach einem der Ansprüche 4 oder 5, gekennzeichnet durch eine Steuerung, die die Vakuumzufuhr für die drei Platten und einen Antrieb für die Winkeleinstellung der beweglichen Platte steuert.Device according to one of claims 4 or 5, characterized by a controller which controls the vacuum supply for the three plates and a drive for the angular adjustment of the movable plate. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß bei Anhalten des Betriebes der Maschine das Vakuum an der ersten bzw. zweiten Platte und der dritten Platte eingeschaltet wird.Apparatus according to claim 6, characterized in that when the operation of the machine is stopped, the vacuum on the first or second plate and the third plate is switched on. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß bei Inbetriebsetzen der Maschine das Vakuum an der ersten und der dritten oder der zweiten und der dritten Platte abgeschaltet wird.Apparatus according to claim 6 or 7, characterized in that when the machine is started up, the vacuum on the first and third or second and third plates is switched off. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß von der ersten und der zweiten Platte eine Maßeinrichtung zum Anzeigen des Abstandes bis zu dem der dritten Platte zugewandten Rand der jeweiligen Platte vorgesehen ist.Device according to one of claims 1 to 8, characterized in that a measuring device is provided from the first and the second plate for indicating the distance to the edge of the respective plate facing the third plate. Verwendung der Vorrichtung nach einem der Ansprüche 1 bis 9 an einer Verpackungsmaschine zum Verpacken von Produkten in aus einer Folienbahn geformte Behältnisse.Use of the device according to one of claims 1 to 9 on a packaging machine for packaging products in containers formed from a film web.
EP97107446A 1996-05-07 1997-05-06 Device for replacing a first web by a second web Expired - Lifetime EP0806390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618175 1996-05-07
DE19618175A DE19618175C1 (en) 1996-05-07 1996-05-07 Equipment replacing first strip with second in packing machine

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EP0806390A1 true EP0806390A1 (en) 1997-11-12
EP0806390B1 EP0806390B1 (en) 1999-08-18

Family

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EP97107446A Expired - Lifetime EP0806390B1 (en) 1996-05-07 1997-05-06 Device for replacing a first web by a second web

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EP (1) EP0806390B1 (en)
DE (2) DE19618175C1 (en)
ES (1) ES2138413T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753870B4 (en) * 1997-12-05 2005-08-25 Voith Paper Patent Gmbh Method and device for connecting the end of a first material web to the beginning of a second material web
ATE263110T1 (en) * 1998-12-16 2004-04-15 Tetra Laval Holdings & Finance DEVICE FOR CONNECTING BANDS
DE102004032528C5 (en) * 2004-07-06 2012-04-05 Khs Gmbh A method of performing a roll change in a supply unit for feeding a sheet-like sheet to a packaging machine or the like processing machine and supply unit for performing this method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606116A2 (en) * 1990-01-26 1994-07-13 Eastman Kodak Company Apparatus and method for cutting strip of adhesive tape
WO1995013235A1 (en) * 1993-11-11 1995-05-18 Packline Limited Packaging

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606116A2 (en) * 1990-01-26 1994-07-13 Eastman Kodak Company Apparatus and method for cutting strip of adhesive tape
WO1995013235A1 (en) * 1993-11-11 1995-05-18 Packline Limited Packaging

Also Published As

Publication number Publication date
ES2138413T3 (en) 2000-01-01
EP0806390B1 (en) 1999-08-18
DE19618175C1 (en) 1997-07-24
DE59700345D1 (en) 1999-09-23

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