EP2998258B1 - Film coiling device for a packaging machine - Google Patents

Film coiling device for a packaging machine Download PDF

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Publication number
EP2998258B1
EP2998258B1 EP14185387.9A EP14185387A EP2998258B1 EP 2998258 B1 EP2998258 B1 EP 2998258B1 EP 14185387 A EP14185387 A EP 14185387A EP 2998258 B1 EP2998258 B1 EP 2998258B1
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EP
European Patent Office
Prior art keywords
axis
film
rotation
paddles
paddle
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EP14185387.9A
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German (de)
French (fr)
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EP2998258A1 (en
Inventor
Markus Kropf
Bernd Happach
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Multivac Sepp Haggenmueller GmbH and Co KG
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Multivac Sepp Haggenmueller GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/56—Winding of hanks or skeins
    • B65H54/58—Swifts or reels adapted solely for the formation of hanks or skeins
    • B65H54/585—Reels for rolling tape-like material, e.g. flat hose or strap, into flat spiral form; Means for retaining the roll after removal of the reel

Definitions

  • the invention relates to a Folienierwickelvorraum for a packaging machine having the features of claim 1 and to a method with the features of claim 6.
  • a sheet winder for a tray sealing machine in which a plurality of S-shaped paddles are movable between a first folded and a second unfolded position.
  • the movement of the paddles between these two positions is generated by means of a relative movement between a disc, which contacts the paddles via pins, and a tube in which the plates are mounted.
  • the paddles After removing a foil bale, the paddles must be brought back into the unfolded position for winding a new foil.
  • a relative movement in the opposite direction which is generated manually or by the drive of the film winding device, is necessary. If this is not done by the operating staff and the film is wound up, this leads to the problem that this newly wound foil ball can not be pulled down.
  • Winding devices which have parallel adjustable paddles, while the JP S5395969 U foldable paddle shows. All have in common that an adjustment of the paddle for at least partial diameter taper must be made by active actuation of elements of the take-up itself. The provision of the paddles for winding a new film web must be done by another active actuation.
  • the object of the present invention is to provide a film take-up device for a packaging machine and a method for operating such a film take-up device, which enables an automatic return from a removal position to a take-up position.
  • the film winding device for a packaging machine comprises at least three paddles which are configured to wind a film on their outer side, respectively, and which are movable between a winding position and a removal position.
  • the Folienaufwickelvorraum is characterized in that each paddle during its movement between the winding position and the removal position, an axial and a radial component of movement with respect to a
  • the paddles can be moved from a winding position in a removal position when pulling down a foil bale by the operator and after removal of the foil bale, the paddles can be automatically brought back to the winding position by the Folienaufwickelvorides itself without action by the operator must be made , It is thus ensured that before each new winding the Folienaufwickelvortechnisch is in its winding position.
  • the Folienaufwickelvortechnische on a synchronization device so that all paddles move together.
  • the synchronization device has a synchronization ring, which is in contact with a respective recess of each paddle. This is a simple construction to synchronize a plurality of paddles with only one actuator.
  • the synchronization ring can be prestressed by means of a spring in order to be able to generate an automatic or automatic reset of the paddles in the winding-up position.
  • each paddle is preferably pivotally mounted with its front end to the front pivoting device and with its rear end to the rear pivoting device by means of a respective pair of levers.
  • the lever pair is preferably movable in a plane oriented radially to the axis of rotation.
  • each forms a paddle with its associated pairs of levers and the pivoting devices and with a virtual connection between a first pivot axis on the front pivot member and a second pivot axis on the rear pivot member a trapezoid or a parallelogram.
  • the front pair of levers preferably has in the winding position at an angle between 90 ° and 85 ° relative to the axis of rotation.
  • An angle of 90 ° or smaller allows a dead center when winding the film.
  • An inventive method for operating a Folienaufwickelvorraum for a packaging machine wherein the Folienaufwickelvorectomy comprises at least three movable paddles and a rotation axis, characterized in that the paddle in a movement between the winding position and the removal position in an axial and radial direction with respect to the axis of rotation move.
  • the paddles are automatically or automatically returned to the winding position without the operator having to think about it before winding the next foil.
  • the paddles move synchronously.
  • a synchronization device which is movable along the axis of rotation preferably generates the movement of the paddles in the winding-up position.
  • each paddle on a front pivoting device is moved radially closer to the axis of rotation of the film winding device than at the same time on a rear pivoting device.
  • a cone shape can be achieved with the reduced diameter on the sampling side, which facilitates the pulling down.
  • Fig. 1 a first embodiment of the invention by way of example on a tray sealing machine, also called Traysealer described.
  • Fig. 1 shows the tray sealer 1 with a feed belt 2, one or more workstations 3, eg an evacuation, sealing and cutting station, a discharge belt 4, a machine frame 5, a film tensioning device 6, an operating device 7, a film feed roller 8 for a film 9 and a Film winding device 10.
  • cup-shaped packages are transported into or out of the work station 3 during operation.
  • workstation 3 for example, the packages are evacuated, fumigated, sealed and cut.
  • the film 9 is unwound from the film feed roll 8, passed through the film tensioning device 6, and stored in the work station 3, e.g. in the sealing tool, windows are cut out of the film web, which are sealed onto the cup-shaped packaging.
  • the film web 9 is sealed onto the cup-shaped packages and then cut.
  • the skeleton, that is the remaining film 9, leaves the work station 3 and is wound up by the Folienaufwickelvorraum 10.
  • the Folienaufwickelvorraum 10 is formed so that it is in a winding position before the winding process and as long as this remains until the film 9 is to be removed.
  • Fig. 2 shows a partially sectioned view of a Folienierwickelvoroplasty invention 10. It comprises four paddles 11 and four connecting elements 12 which are arranged concentrically to a rotational axis A of the Folienierwickelvorraum 10.
  • Each paddle 11 comprises a flat, plate-shaped body 11a made of plastic or metal, for example made of stainless steel, which is aligned in the longitudinal direction of the Folienierwickelvortechnik and is always in a radially aligned with the axis of rotation A level.
  • the front end 13 of each paddle 11 is pivotally mounted by means of a lever pair 14 on a front pivot member 15.
  • the respective front lever pair 14 is mounted on the front pivot member 15, via an outer pivot axis S3 on the respective paddle 11.
  • the rear end 16 of each paddle 11 by means of another pair of levers 14 on a rear pivot member 17 is pivotable or rotatably mounted, with an inner pivot axis S2 between pivot member 17 and lever pair 14 and with an outer pivot axis S4 between lever pair 14 and paddle 11.
  • the front pivot member 15 is connected by means of four connecting elements 12 with the rear pivot member 17, wherein the rear pivot member 17 is mounted concentrically on a shaft 18.
  • the part of the shaft 18, which is located outside of the pivot elements 15, 17, serves as a storage or recording in the machine frame 5 and is driven by a drive, not shown, preferably a servo motor, to wind the film 9.
  • a synchronization device 20 is arranged on the shaft 18, which has a synchronizing ring 21 displaceable along the axis of rotation A.
  • the synchronizing ring 21 is in its outer region 22 with a respective recess 23 of each paddle 11 in contact. If a paddle 11 is moved, the synchronization ring 21 synchronizes the movement of all paddles 11. Is a foil ball 26, as in Fig.
  • Fig. 3 are shown in an end view, the paddle 11 in the winding position with the film bale 26.
  • the paddles 11 and the pairs of levers 14 are aligned radially to the axis of rotation and attached together with the connecting elements 12 on the front pivot member 15.
  • Fig. 4 shows a longitudinal section of the Folienierwickelvorraum 10 in the winding position with the wound-up film bale 26.
  • the paddle 11 have on their side facing away from the rotation axis A outside 30 has a concave profile. If an operator attacks the film bale 26 in order to pull it down with respect to the drawing plane to the right from the film take-up device 10, the tensile force Z of the operator is transmitted via the friction between the innermost film layer and outer sides 30 of the four paddles 11 into a frictional force R and thus ensures a movement of the paddle 11 in the same direction.
  • the front pair of levers 14 on the front pivot member 15 is inclined in the winding position by an angle ⁇ between 90 ° and 85 ° relative to the axis of rotation A.
  • the rear pair of levers 14 on the rear pivot member 17 is also inclined in the winding position by an angle ⁇ between 90 ° and 85 ° on its side facing away from the paddle 11 side with respect to the axis of rotation A.
  • the paddle 11 each move with its front end 13 by means of the lever pairs 14 about the first pivot axis S1 on the front pivot member 15 and with its rear end 16 by means of the lever pairs 14 about the second pivot axis S2 on the rear pivot member 17 such that during Moving the paddle 11 to the right to move the front ends 13 in the direction of the axis of rotation A faster than the rear ends 16.
  • each paddle 11 performs a movement with a radial and axial movement component with respect to the axis of rotation A. This causes an inclination of the paddle 11 with a smaller outer dimension at the front pivot member 15 than at the rear pivot member 17.
  • the spring 24 is biased further in the movement of the synchronization ring 21 against the holder 25. This leads to a small but still constantly existing frictional force R, which the operator has to apply when pulling down the foil bale 26.
  • the paddles 11 are automatically moved from the removal position back into the winding-up position, without the influence of the operator, by moving the synchronization ring 21 towards the rear pivoting element 17 by means of the spring 24.
  • the sides of the paddles 11 facing away from the axis of rotation A are aligned approximately parallel or concentric to the axis of rotation A.
  • the pairs of levers 14 each of a paddle 11 form in the winding position together with the virtual lines that connect the inner and outer pivot axes S1 to S4 of the two pairs of levers 14, a trapezoid.
  • Fig. 6 shows a further embodiment not according to the invention, in which the pairs of levers 14 have a rectified orientation of the angle ⁇ and thus the lever pairs 14 each of a paddle 11 form a parallelogram.
  • the paddle 11 during movement from the winding position to the removal position are always aligned parallel or concentric with the axis of rotation A, in contrast to the cone formation in the former embodiment of Fig. 2 to 5 .
  • the outer sides 30 of the paddles 11 have a convex shape in order to automatically center the film 9 during winding, or are only just executed.
  • a pair of levers 14 may be provided instead of a pair of levers 14, a single lever may be provided.

Description

Die Erfindung bezieht sich auf eine Folienaufwickelvorrichtung für eine Verpackungsmaschine mit den Merkmalen des Anspruchs 1 sowie auf ein Verfahren mit den Merkmalen des Anspruchs 6.The invention relates to a Folienaufwickelvorrichtung for a packaging machine having the features of claim 1 and to a method with the features of claim 6.

Aus der EP 2 145 850 A1 ist eine Folienaufwickelvorrichtung für eine Schalenverschließmaschine bekannt, bei der mehrere S-förmige Paddel zwischen einer ersten eingeklappten und einer zweiten ausgeklappten Position bewegbar sind. Die Bewegung der Paddel zwischen diesen zwei Positionen wird mittels einer Relativbewegung zwischen einer Scheibe, die über Stifte mit den Paddeln in Kontakt tritt, und einem Rohr, in dem die Bleche gelagert sind, erzeugt. Nach dem Abziehen eines Folienballens müssen die Paddel wieder zurück in die ausgeklappte Position zum Aufwickeln einer neuen Folie gebracht werden. Hierzu ist eine manuell oder durch den Antrieb der Folienaufwickelvorrichtung erzeugte Relativbewegung in der Gegenrichtung notwendig. Wird dies vom Bedienpersonal nicht durchgeführt und die Folie aufgewickelt, führt dies zum Problem, dass dieser neu aufgewickelte Folienballen nicht mehr herunter gezogen werden kann.From the EP 2 145 850 A1 a sheet winder for a tray sealing machine is known in which a plurality of S-shaped paddles are movable between a first folded and a second unfolded position. The movement of the paddles between these two positions is generated by means of a relative movement between a disc, which contacts the paddles via pins, and a tube in which the plates are mounted. After removing a foil bale, the paddles must be brought back into the unfolded position for winding a new foil. For this purpose, a relative movement in the opposite direction, which is generated manually or by the drive of the film winding device, is necessary. If this is not done by the operating staff and the film is wound up, this leads to the problem that this newly wound foil ball can not be pulled down.

Aus der JP 2003321151 A und JP 2002012347 A sind Aufwickelvorrichtungen bekannt, die parallel verstellbare Paddel aufweisen, während die JP S5395969 U einknickbare Paddel zeigt. Allen gemein ist, dass eine Verstellung der Paddel zur wenigstens teilweisen Durchmesserverjüngung durch aktive Betätigung von Elementen der Aufwickelvorrichtung selbst vorgenommen werden muss. Auch die Rückstellung der Paddel zum Aufwickeln einer neuen Folienbahn muss durch eine weitere aktive Betätigung erfolgen.From the JP 2003321151 A and JP 2002012347 A Winding devices are known which have parallel adjustable paddles, while the JP S5395969 U foldable paddle shows. All have in common that an adjustment of the paddle for at least partial diameter taper must be made by active actuation of elements of the take-up itself. The provision of the paddles for winding a new film web must be done by another active actuation.

Aufgabe der vorliegenden Erfindung ist es, eine Folienaufwickelvorrichtung für eine Verpackungsmaschine und ein Verfahren zum Betrieb einer solchen Folienaufwickelvorrichtung zur Verfügung zu stellen, die eine selbsttätige Rückstellung von einer Entnahmestellung in eine Aufwickelstellung ermöglicht.The object of the present invention is to provide a film take-up device for a packaging machine and a method for operating such a film take-up device, which enables an automatic return from a removal position to a take-up position.

Diese Aufgabe wird gelöst durch eine Folienaufwickelvorrichtung für eine Verpackungsmaschine mit den Merkmalen des Anspruchs 1 bzw. durch ein Verfahren zum Betrieb einer solchen Folienaufwickelvorrichtung mit den Merkmalen des Anspruchs 6. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a Folienaufwickelvorrichtung for a packaging machine having the features of claim 1 and by a method for operating such Folienaufwickelvorrichtung with the features of claim 6. Advantageous developments of the invention are specified in the dependent claims.

Die erfindungsgemäße Folienaufwickelvorrichtung für eine Verpackungsmaschine umfasst wenigstens drei Paddel, die dazu konfiguriert sind, jeweils an ihrer Außenseite eine Folie aufzuwickeln, und die zwischen einer Aufwickelstellung und einer Entnahmestellung bewegbar sind. Die Folienaufwickelvorrichtung zeichnet sich dadurch aus, dass jedes Paddel während seiner Bewegung zwischen der Aufwickelstellung und der Entnahmestellung eine axiale und eine radiale Bewegungskomponente gegenüber einerThe film winding device for a packaging machine according to the invention comprises at least three paddles which are configured to wind a film on their outer side, respectively, and which are movable between a winding position and a removal position. The Folienaufwickelvorrichtung is characterized in that each paddle during its movement between the winding position and the removal position, an axial and a radial component of movement with respect to a

Drehachse der Folienaufwickelvorrichtung aufweist. Somit lassen sich die Paddel beim Herunterziehen eines Folienballens durch den Bediener von einer Aufwickelstellung in eine Entnahmestellung bewegen und nach dem Entfernen des Folienballens können die Paddel selbsttätig zurück in die Aufwickelstellung durch die Folienaufwickelvorrichtung selbst gebracht werden, ohne dass eine Aktion durch den Bediener vorgenommen werden muss. Es ist somit sichergestellt, dass vor jedem neuen Aufwickeln sich die Folienaufwickelvorrichtung in ihrer Aufwickelstellung befindet.Has rotational axis of the Folienaufwickelvorrichtung. Thus, the paddles can be moved from a winding position in a removal position when pulling down a foil bale by the operator and after removal of the foil bale, the paddles can be automatically brought back to the winding position by the Folienaufwickelvorrichtung itself without action by the operator must be made , It is thus ensured that before each new winding the Folienaufwickelvorrichtung is in its winding position.

Erfindungsgemäß weist die Folienaufwickelvorrichtung eine Synchronisierungsvorrichtung auf, so dass sich alle Paddel gemeinsam bewegen.According to the invention, the Folienaufwickelvorrichtung on a synchronization device, so that all paddles move together.

Dabei weist die Synchronisierungsvorrichtung einen Synchronisationsring auf, der mit jeweils einer Aussparung eines jeden Paddels in Kontakt steht. Dies stellt eine einfache Konstruktion dar, um mit nur einem Aktor eine Vielzahl von Paddeln zu synchronisieren.In this case, the synchronization device has a synchronization ring, which is in contact with a respective recess of each paddle. This is a simple construction to synchronize a plurality of paddles with only one actuator.

Der Synchronisationsring ist mittels einer Feder vorspannbar, um ein automatisches bzw. selbsttätiges Rückstellen der Paddel in die Aufwickelstellung erzeugen zu können.The synchronization ring can be prestressed by means of a spring in order to be able to generate an automatic or automatic reset of the paddles in the winding-up position.

Des Weiteren weist die Folienaufwickelvorrichtung eine vordere Schwenkvorrichtung und eine hintere Schwenkvorrichtung auf. Dabei ist jedes Paddel vorzugsweise mit seinem vorderen Ende an der vorderen Schwenkvorrichtung und mit seinem hinteren Ende an der hinteren Schwenkvorrichtung mittels jeweils eines Hebelpaars schwenkbar gelagert.Furthermore, the Folienaufwickelvorrichtung on a front pivoting device and a rear pivoting device. In this case, each paddle is preferably pivotally mounted with its front end to the front pivoting device and with its rear end to the rear pivoting device by means of a respective pair of levers.

Das Hebelpaar ist bevorzugt in einer radial zur Drehachse ausgerichteten Ebene bewegbar.The lever pair is preferably movable in a plane oriented radially to the axis of rotation.

Vorzugweise bildet jeweils ein Paddel mit seinen zugeordneten Hebelpaaren und den Schwenkvorrichtungen sowie mit einer virtuellen Verbindung zwischen einer ersten Schwenkachse am vorderen Schwenkelement und einer zweiten Schwenkachse am hinteren Schwenkelement ein Trapez oder ein Parallelogramm.Preferably, each forms a paddle with its associated pairs of levers and the pivoting devices and with a virtual connection between a first pivot axis on the front pivot member and a second pivot axis on the rear pivot member a trapezoid or a parallelogram.

Das vordere Hebelpaar weist bevorzugt in der Aufwickelstellung einen Winkel zwischen 90° und 85° gegenüber der Drehachse auf. Ein Winkel mit 90° oder kleiner ermöglicht eine Totpunktstellung beim Aufwickeln der Folie.The front pair of levers preferably has in the winding position at an angle between 90 ° and 85 ° relative to the axis of rotation. An angle of 90 ° or smaller allows a dead center when winding the film.

Ein erfindungsgemäßes Verfahren zum Betrieb einer Folienaufwickelvorrichtung für eine Verpackungsmaschine, wobei die Folienaufwickelvorrichtung wenigstens drei bewegbare Paddel und eine Drehachse umfasst, zeichnet sich dadurch aus, dass sich die Paddel bei einer Bewegung zwischen der Aufwickelstellung und der Entnahmestellung in einer axialen und radialen Richtung gegenüber der Drehachse bewegen.An inventive method for operating a Folienaufwickelvorrichtung for a packaging machine, wherein the Folienaufwickelvorrichtung comprises at least three movable paddles and a rotation axis, characterized in that the paddle in a movement between the winding position and the removal position in an axial and radial direction with respect to the axis of rotation move.

Vorzugsweise werden nach dem Entfernen eines Folienballens die Paddel automatisch bzw. selbsttätig in die Aufwickelstellung zurückbewegt, ohne dass der Bediener vor dem Aufwickeln der nächsten Folie daran denken muss.Preferably, after the removal of a foil bale, the paddles are automatically or automatically returned to the winding position without the operator having to think about it before winding the next foil.

Bevorzugt bewegen sich die Paddel synchron. Dabei erzeugt vorzugsweise eine entlang der Drehachse bewegbare Synchronisierungsvorrichtung die Bewegung der Paddel in die Aufwickelstellung.Preferably, the paddles move synchronously. In this case, a synchronization device which is movable along the axis of rotation preferably generates the movement of the paddles in the winding-up position.

Erfindungsgemäß wird jedes Paddel an einer vorderen Schwenkvorrichtung radial näher an die Drehachse der Folienaufwickelvorrichtung bewegt als zeitgleich an einer hinteren Schwenkvorrichtung. So kann eine Konusform erreicht werden mit dem reduzierten Durchmesser an der Entnahmeseite, die das Herunterziehen erleichtert.According to the invention, each paddle on a front pivoting device is moved radially closer to the axis of rotation of the film winding device than at the same time on a rear pivoting device. Thus, a cone shape can be achieved with the reduced diameter on the sampling side, which facilitates the pulling down.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Im Einzelnen zeigen:

Fig. 1
eine schematische perspektivische Ansicht einer Schalenverschließmaschine,
Fig. 2
eine perspektivische teilgeschnittene Ansicht einer ersten Ausführung einer erfindungsgemäßen Folienaufwickelvorrichtung,
Fig. 3
eine Stirnansicht der Folienaufwickelvorrichtung,
Fig. 4
eine schematische Längsschnittsansicht der Folienaufwickelvorrichtung in einer Aufwickelstellung,
Fig. 5
eine schematische Längsschnittsansicht der Folienaufwickelvorrichtung in einer Entnahmestellung und
Fig. 6
eine weitere Ausführung einer Folienaufwickelvorrichtung.
In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing. In detail show:
Fig. 1
a schematic perspective view of a tray sealing machine,
Fig. 2
3 is a perspective partially sectioned view of a first embodiment of a Folienaufwickelvorrichtung invention,
Fig. 3
an end view of the Folienaufwickelvorrichtung,
Fig. 4
a schematic longitudinal sectional view of the Folienaufwickelvorrichtung in a winding position,
Fig. 5
a schematic longitudinal sectional view of the Folienaufwickelvorrichtung in a removal position and
Fig. 6
another embodiment of a Folienaufwickelvorrichtung.

Gleiche Komponenten sind in den Figuren durchgängig mit gleichen Bezugszeichen versehen.The same components are provided throughout the figures with the same reference numerals.

Im Folgenden wird mit Bezug auf Fig. 1 eine erste Ausführungsform der Erfindung beispielhaft an einer Schalenverschließmaschine, auch Traysealer genannt, beschrieben.The following is with reference to Fig. 1 a first embodiment of the invention by way of example on a tray sealing machine, also called Traysealer described.

Fig. 1 zeigt den Traysealer 1 mit einem Zuführband 2, einer oder mehreren Arbeitsstationen 3, z.B. einer Evakuier-, Siegel- und Schneidstation, einem Abführband 4, einem Maschinengestell 5, einer Folienspannvorrichtung 6, einer Bedienvorrichtung 7, einer Folienzuführrolle 8 für eine Folie 9 und einer Folienaufwickelvorrichtung 10. Fig. 1 shows the tray sealer 1 with a feed belt 2, one or more workstations 3, eg an evacuation, sealing and cutting station, a discharge belt 4, a machine frame 5, a film tensioning device 6, an operating device 7, a film feed roller 8 for a film 9 and a Film winding device 10.

Auf dem Zuführband 2 bzw. dem Abführband 4 werden im Betrieb beispielsweise schalenförmige Verpackungen in die Arbeitsstation 3 hinein bzw. aus ihr heraus transportiert. In der Arbeitsstation 3 werden die Verpackungen zum Beispiel evakuiert, begast, versiegelt und geschnitten. Die Folie 9 wird von der Folienzuführrolle 8 abgewickelt, durch die Folienspannvorrichtung 6 geführt, und in der Arbeitsstation 3, z.B. im Siegelwerkzeug, werden aus der Folienbahn Fenster herausgeschnitten, die auf die schalenförmigen Verpackungen aufgesiegelt werden. Alternativ wird die Folienbahn 9 auf die schalenförmigen Verpackungen aufgesiegelt und danach geschnitten. Das Restgitter, also die verbleibende Folie 9, verlässt die Arbeitsstation 3 und wird von der Folienaufwickelvorrichtung 10 aufgewickelt. Die Folienaufwickelvorrichtung 10 ist so ausgebildet, dass sie sich vor dem Aufwickelvorgang in einer Aufwickelstellung befindet und solange in dieser verbleibt, bis die Folie 9 abgenommen werden soll.On the conveyor belt 2 or the discharge conveyor 4, for example, cup-shaped packages are transported into or out of the work station 3 during operation. In workstation 3, for example, the packages are evacuated, fumigated, sealed and cut. The film 9 is unwound from the film feed roll 8, passed through the film tensioning device 6, and stored in the work station 3, e.g. in the sealing tool, windows are cut out of the film web, which are sealed onto the cup-shaped packaging. Alternatively, the film web 9 is sealed onto the cup-shaped packages and then cut. The skeleton, that is the remaining film 9, leaves the work station 3 and is wound up by the Folienaufwickelvorrichtung 10. The Folienaufwickelvorrichtung 10 is formed so that it is in a winding position before the winding process and as long as this remains until the film 9 is to be removed.

Fig. 2 zeigt eine teilgeschnittene Ansicht einer erfindungsgemäßen Folienaufwickelvorrichtung 10. Sie umfasst vier Paddel 11 und vier Verbindungselemente 12, die konzentrisch zu einer Drehachse A der Folienaufwickelvorrichtung 10 angeordnet sind. Jedes Paddel 11 umfasst einen ebenen, plattenförmigen Körper 11a aus Kunststoff oder Metall, z.B. aus Edelstahl, der in Längsrichtung der Folienaufwickelvorrichtung ausgerichtet ist und sich stets in einer radial zur Drehachse A ausgerichteten Ebene befindet. Das vordere Ende 13 eines jeden Paddels 11 ist mittels eines Hebelpaars 14 an einem vorderen Schwenkelement 15 schwenkbar bzw. drehbar angebracht. Über eine erste, innere Schwenkachse S1 ist das jeweilige vordere Hebelpaar 14 am vorderen Schwenkelement 15 gelagert, über eine äußere Schwenkachse S3 am jeweiligen Paddel 11. Analog ist das hintere Ende 16 eines jeden Paddels 11 mittels eines weiteren Hebelpaars 14 an einem hinteren Schwenkelement 17 schwenkbar bzw. drehbar angebracht, und zwar mit einer inneren Schwenkachse S2 zwischen Schwenkelement 17 und Hebelpaar 14 sowie mit einer äußeren Schwenkachse S4 zwischen Hebelpaar 14 und Paddel 11. Das vordere Schwenkelement 15 ist mittels der vier Verbindungselemente 12 mit dem hinteren Schwenkelement 17 verbunden, wobei das hintere Schwenkelement 17 konzentrisch auf einer Welle 18 angebracht ist. Der Teil der Welle 18, der sich außerhalb der Schwenkelemente 15, 17 befindet, dient als Lagerung bzw. Aufnahme im Maschinengestell 5 und wird über einen nicht gezeigten Antrieb, vorzugsweise einen Servomotor, angetrieben, um die Folie 9 aufzuwickeln. Fig. 2 shows a partially sectioned view of a Folienaufwickelvorrichtung invention 10. It comprises four paddles 11 and four connecting elements 12 which are arranged concentrically to a rotational axis A of the Folienaufwickelvorrichtung 10. Each paddle 11 comprises a flat, plate-shaped body 11a made of plastic or metal, for example made of stainless steel, which is aligned in the longitudinal direction of the Folienaufwickelvorrichtung and is always in a radially aligned with the axis of rotation A level. The front end 13 of each paddle 11 is pivotally mounted by means of a lever pair 14 on a front pivot member 15. Via a first, inner pivot axis S1, the respective front lever pair 14 is mounted on the front pivot member 15, via an outer pivot axis S3 on the respective paddle 11. Analogously, the rear end 16 of each paddle 11 by means of another pair of levers 14 on a rear pivot member 17 is pivotable or rotatably mounted, with an inner pivot axis S2 between pivot member 17 and lever pair 14 and with an outer pivot axis S4 between lever pair 14 and paddle 11. The front pivot member 15 is connected by means of four connecting elements 12 with the rear pivot member 17, wherein the rear pivot member 17 is mounted concentrically on a shaft 18. The part of the shaft 18, which is located outside of the pivot elements 15, 17, serves as a storage or recording in the machine frame 5 and is driven by a drive, not shown, preferably a servo motor, to wind the film 9.

Zwischen den Schwenkelementen 15, 17 ist auf der Welle 18 eine Synchronisierungsvorrichtung 20 angeordnet, die einen entlang der Drehachse A verschiebbaren Synchronisationsring 21 aufweist. Der Synchronisierungsring 21 steht in seinem äußeren Bereich 22 mit jeweils einer Aussparung 23 eines jeden Paddels 11 in Kontakt. Wird ein Paddel 11 bewegt, so synchronisiert der Synchronisationsring 21 die Bewegung aller Paddel 11. Ist ein Folienballen 26, wie in Fig. 3 gezeigt, von der Folienaufwickelvorrichtung 10 heruntergenommen worden, so sorgt der über eine Feder 24 an einem Halter 25 vorgespannte Synchronisationsring 21 für eine synchronisierte Bewegung aller Paddel 11 zurück in die Aufwickelstellung, bei der sich alle Paddel 11 in ihrer radial zur Drehachse A entferntesten Stellung befinden und gemeinsam einen virtuellen maximalen Durchmesser bilden. Als Anschlag für diese Stellung kann der Halter 25 gegenüber den Paddeln 11 dienen, oder der Synchronisationsring 21 kann an einem Absatz 18a an der Welle 18 anschlagen.Between the pivot elements 15, 17, a synchronization device 20 is arranged on the shaft 18, which has a synchronizing ring 21 displaceable along the axis of rotation A. The synchronizing ring 21 is in its outer region 22 with a respective recess 23 of each paddle 11 in contact. If a paddle 11 is moved, the synchronization ring 21 synchronizes the movement of all paddles 11. Is a foil ball 26, as in Fig. 3 has been taken down by the Folienaufwickelvorrichtung 10, so provides a spring 24 biased to a holder 25 synchronization ring 21 for a synchronized movement of all paddles 11 back to the winding position, in which all paddles 11 are in their radially to the axis of rotation A most remote position and together form a virtual maximum diameter. As a stop for this position, the holder 25 may serve with respect to the paddles 11, or the synchronization ring 21 may abut on a shoulder 18 a of the shaft 18.

In Fig. 3 sind in einer Stirnansicht die Paddel 11 in der Aufwickelstellung mit dem Folienballen 26 gezeigt. Die Paddel 11 und die Hebelpaare 14 sind radial zur Drehachse ausgerichtet und zusammen mit den Verbindungselementen 12 am vorderen Schwenkelement 15 angebracht.In Fig. 3 are shown in an end view, the paddle 11 in the winding position with the film bale 26. The paddles 11 and the pairs of levers 14 are aligned radially to the axis of rotation and attached together with the connecting elements 12 on the front pivot member 15.

Fig. 4 zeigt einen Längsschnitt der Folienaufwickelvorrichtung 10 in der Aufwickelstellung mit dem aufgewickelten Folienballen 26. Die Paddel 11 weisen an ihrer von der Drehachse A abgewandten Außenseite 30 einen konkaven Verlauf auf. Greift ein Bediener an dem Folienballen 26 an, um ihn bzgl. der Zeichnungsebene nach rechts von der Folienaufwickelvorrichtung 10 herunterzuziehen, so wird die Zugkraft Z des Bedieners über die Reibung zwischen der innersten Folienlage und Außenseiten 30 der vier Paddel 11 in eine Reibkraft R übertragen und sorgt somit für eine Bewegung der Paddel 11 in der gleichen Richtung. Das vordere Hebelpaar 14 an dem vorderen Schwenkelement 15 ist in der Aufwickelstellung um einen Winkel β zwischen 90° und 85° gegenüber der Drehachse A geneigt. Das hintere Hebelpaar 14 am hinteren Schwenkelement 17 ist in der Aufwickelstellung ebenfalls um einen Winkel β zwischen 90° und 85° an seiner vom Paddel 11 abgewandten Seite gegenüber der Drehachse A geneigt. Fig. 4 shows a longitudinal section of the Folienaufwickelvorrichtung 10 in the winding position with the wound-up film bale 26. The paddle 11 have on their side facing away from the rotation axis A outside 30 has a concave profile. If an operator attacks the film bale 26 in order to pull it down with respect to the drawing plane to the right from the film take-up device 10, the tensile force Z of the operator is transmitted via the friction between the innermost film layer and outer sides 30 of the four paddles 11 into a frictional force R and thus ensures a movement of the paddle 11 in the same direction. The front pair of levers 14 on the front pivot member 15 is inclined in the winding position by an angle β between 90 ° and 85 ° relative to the axis of rotation A. The rear pair of levers 14 on the rear pivot member 17 is also inclined in the winding position by an angle β between 90 ° and 85 ° on its side facing away from the paddle 11 side with respect to the axis of rotation A.

Wie in Fig. 5 gezeigt, bewegen sich die Paddel 11 jeweils mit ihrem vorderen Ende 13 mittels der Hebelpaare 14 um die erste Schwenkachse S1 am vorderen Schwenkelement 15 und mit ihrem hinteren Ende 16 mittels der Hebelpaare 14 um die zweite Schwenkachse S2 am hinteren Schwenkelement 17 derart, dass sich während der Bewegung der Paddel 11 nach rechts die vorderen Enden 13 schneller in Richtung der Drehachse A bewegen als die hinteren Enden 16. Dabei führt jedes Paddel 11 eine Bewegung mit einer radialen und axialen Bewegungskomponente bezogen auf die Drehachse A aus. Dies bewirkt eine Schrägstellung der Paddel 11 mit einer geringeren Außenabmessung am vorderen Schwenkelement 15 als am hinteren Schwenkelement 17. Hätte die Aufwickelvorrichtung 10 eine beliebig große Anzahl von Paddeln 11, so würde sich in dieser Stellung insgesamt eine konische Außenform der Aufwickelvorrichtung 10 ergeben. Daraus resultiert eine geringere Zugkraft Z, die vom Bediener zum Herunternehmen aufgebracht werden muss, da sich die Kontaktfläche zwischen der innersten Folienlage des Folienballens 26 und den Außenseiten 30 der Paddel 11 verringert.As in Fig. 5 shown, the paddle 11 each move with its front end 13 by means of the lever pairs 14 about the first pivot axis S1 on the front pivot member 15 and with its rear end 16 by means of the lever pairs 14 about the second pivot axis S2 on the rear pivot member 17 such that during Moving the paddle 11 to the right to move the front ends 13 in the direction of the axis of rotation A faster than the rear ends 16. In this case, each paddle 11 performs a movement with a radial and axial movement component with respect to the axis of rotation A. This causes an inclination of the paddle 11 with a smaller outer dimension at the front pivot member 15 than at the rear pivot member 17. Had the take-up 10 an arbitrarily large number of paddles 11, so would result in this position, a total conical outer shape of the winder 10. This results in a lower tensile force Z, which must be applied by the operator to the company, since the contact area between the innermost layer of film of the film bale 26 and the outer sides 30 of the paddle 11 is reduced.

Die Feder 24 wird bei der Bewegung des Synchronisationsrings 21 gegen den Halter 25 weiter vorgespannt. Dies führt zu einer geringen aber trotzdem noch ständig vorhandenen Reibkraft R, die der Bediener beim Herunterziehen des Folienballens 26 aufbringen muss. Sobald der Folienballen 26 entfernt ist, werden die Paddel 11 selbsttätig, nämlich ohne einen Einfluss durch den Bediener, von der Entnahmestellung zurück in die Aufwickelstellung bewegt, indem der Synchronisationsring 21 durch die Feder 24 zum hinteren Schwenkelement 17 hin bewegt wird. In der Aufwickelstellung sind die von der Drehachse A abgewandten Seiten der Paddel 11 annähernd parallel bzw. konzentrisch zur Drehachse A ausgerichtet. Die Hebelpaare 14 jeweils eines Paddels 11 bilden in der Aufwickelstellung zusammen mit den virtuellen Linien, die die inneren und die äußeren Schwenkachsen S1 bis S4 der beiden Hebelpaare 14 miteinander verbinden, ein Trapez.The spring 24 is biased further in the movement of the synchronization ring 21 against the holder 25. This leads to a small but still constantly existing frictional force R, which the operator has to apply when pulling down the foil bale 26. As soon as the foil bale 26 has been removed, the paddles 11 are automatically moved from the removal position back into the winding-up position, without the influence of the operator, by moving the synchronization ring 21 towards the rear pivoting element 17 by means of the spring 24. In the winding position, the sides of the paddles 11 facing away from the axis of rotation A are aligned approximately parallel or concentric to the axis of rotation A. The pairs of levers 14 each of a paddle 11 form in the winding position together with the virtual lines that connect the inner and outer pivot axes S1 to S4 of the two pairs of levers 14, a trapezoid.

Fig. 6 zeigt eine weitere nicht erfindungsgemäße Ausführung, bei der die Hebelpaare 14 eine gleichgerichtete Ausrichtung des Winkels β aufweisen und somit die Hebelpaare 14 jeweils eines Paddels 11 ein Parallelogramm bilden. Bei dieser Ausführung sind die Paddel 11 während der Bewegung von der Aufwickelstellung in die Entnahmestellung immer parallel bzw. konzentrisch zur Drehachse A ausgerichtet, im Gegensatz zur Konusbildung bei der ersteren Ausführung von Fig. 2 bis 5.
Denkbar ist auch, dass die Außenseiten 30 der Paddel 11 eine konvexe Form aufweisen, um die Folie 9 beim Aufwickeln selbsttätig zu zentrieren, oder lediglich gerade ausgeführt sind. Erfindungsgemäß kann anstatt eines Hebelpaars 14 ein einzelner Hebel vorgesehen sein. Fig. 6 shows a further embodiment not according to the invention, in which the pairs of levers 14 have a rectified orientation of the angle β and thus the lever pairs 14 each of a paddle 11 form a parallelogram. In this embodiment, the paddle 11 during movement from the winding position to the removal position are always aligned parallel or concentric with the axis of rotation A, in contrast to the cone formation in the former embodiment of Fig. 2 to 5 ,
It is also conceivable that the outer sides 30 of the paddles 11 have a convex shape in order to automatically center the film 9 during winding, or are only just executed. According to the invention, instead of a pair of levers 14, a single lever may be provided.

Claims (9)

  1. Film winding device (10) for a packaging machine (1), the film winding device (10) comprising at least three paddles (11) that are configured to wind up a film (9) on their outside (30) and are movable between a winding position and a removal position, characterized in that the film winding device (10) comprises a synchronizing device (20) comprising a synchronizing ring (21) which is biased by a spring (24) and is in contact with a respective recess (23) of each paddle (11), that the film winding device (10) comprises a front pivoting device (15) and a rear pivoting device (17), and that each paddle (11) during its movement between the winding position and the removal position has an axial and a radial movement component with respect to an axis of rotation (A) of the film winding device (10), and during said movement each paddle (11) at the front pivoting device (15) is moved radially closer to the axis of rotation (A) of the film winding device (10) than simultaneously at the rear pivoting device (17).
  2. Film winding device according to claim 1, characterized in that each paddle (11) is pivotably supported with its front end (13) on the front pivoting device (15) and with its rear end (16) on the rear pivoting device (17) by way of a respective pair of levers (14).
  3. Film winding device according to claim 2, characterized in that each pair of levers (14) is movable in a plane aligned radially with respect to the axis of rotation (A).
  4. Film winding device according to claim 3, characterized in that a respective paddle (11) with the associated pairs of levers (14) and the pivoting devices (15, 17) and with a virtual connection between a first pivot axis (S1) on the front pivoting element (15) and a second pivot axis (S2) on the rear pivoting element (17) forms a trapezium or a parallelogram.
  5. Film winding device according to claim 4, characterized in that the front pair of levers (14) in the winding position has an angle (β) between 90° and 85° with respect to the axis of rotation (A).
  6. Method for operating a film winding device (10) according to one of the preceding claims for a packaging machine (1), the film winding device (10) comprising at least three movable paddles (11) and an axis of rotation (A), characterized in that the paddles (11) move in an axial and radial direction relative to the axis of rotation (A) during a movement between the winding position and the removal position, and that each paddle (11) at the front pivoting device (15) is moved radially closer to the axis of rotation (A) of the film winding device (10) than simultaneously at the rear pivoting device (17).
  7. Method according to claim 6, characterized in that after the removal of a film bale (26) the paddles (11) are automatically moved back into the winding position.
  8. Method according to one of claims 6 or 7, characterized in that the paddles (11) move synchronously.
  9. Method according to claim 8, characterized in that the synchronizing device (21) which is movable along the axis of rotation (A) generates the movement of the paddles (11) into the winding position.
EP14185387.9A 2014-09-18 2014-09-18 Film coiling device for a packaging machine Active EP2998258B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14185387.9A EP2998258B1 (en) 2014-09-18 2014-09-18 Film coiling device for a packaging machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14185387.9A EP2998258B1 (en) 2014-09-18 2014-09-18 Film coiling device for a packaging machine

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EP2998258A1 EP2998258A1 (en) 2016-03-23
EP2998258B1 true EP2998258B1 (en) 2019-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111824815A (en) * 2020-06-10 2020-10-27 桐乡市中瑞环保科技有限公司 Coiling mechanism of melt-blown fabric after cutting

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
EP3868693A1 (en) 2020-02-21 2021-08-25 MULTIVAC Sepp Haggenmüller SE & Co. KG Residual film winder for a packaging machine

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Publication number Priority date Publication date Assignee Title
JPS5154072Y2 (en) * 1971-12-18 1976-12-23
JPS5395969U (en) * 1976-12-04 1978-08-04
JPH1143242A (en) * 1997-07-25 1999-02-16 Hitachi Chem Co Ltd Film winder
JP2002012347A (en) * 2000-06-30 2002-01-15 Hagihara Industries Inc Reel winding/unwinding device
JP2003321151A (en) * 2002-05-02 2003-11-11 Millennium Service Corporation:Kk Roll support shaft, winder, and unwinder
DE102008033349A1 (en) 2008-07-16 2010-02-11 Multivac Sepp Haggenmüller Gmbh & Co. Kg Packaging machine with a Folienaufwickelvorrichtung

Non-Patent Citations (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111824815A (en) * 2020-06-10 2020-10-27 桐乡市中瑞环保科技有限公司 Coiling mechanism of melt-blown fabric after cutting

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