EP2384980A1 - Work station for packaging machine - Google Patents

Work station for packaging machine Download PDF

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Publication number
EP2384980A1
EP2384980A1 EP11003667A EP11003667A EP2384980A1 EP 2384980 A1 EP2384980 A1 EP 2384980A1 EP 11003667 A EP11003667 A EP 11003667A EP 11003667 A EP11003667 A EP 11003667A EP 2384980 A1 EP2384980 A1 EP 2384980A1
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EP
European Patent Office
Prior art keywords
tool
pivot
pivot arm
workstation
workstation according
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
EP11003667A
Other languages
German (de)
French (fr)
Other versions
EP2384980B1 (en
Inventor
Elmar Ehrmann
Hubert Zeller
Kenneth Harding
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.)
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Publication of EP2384980A1 publication Critical patent/EP2384980A1/en
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Publication of EP2384980B1 publication Critical patent/EP2384980B1/en
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Classifications

    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance

Definitions

  • the invention relates to a workstation according to the preamble of claim 1 and to a packaging machine according to the preamble of claim 12.
  • a chamber belt machine in which a lid is designed to be vertically liftable and is designed to be pivotable in its upper position, so that good accessibility for an operator for maintenance or cleaning is possible.
  • thermoforming packaging machines which include work stations such as a forming station and a sealing station each including a tool top pivotally mounted about a horizontal axis on one side of the tool top. This makes it possible to pivot the upper part of the tool as far as possible in order to clean the underside or to carry out maintenance or replacement of inserts on the underside of the upper part of the tool.
  • a disadvantage of the prior art is the lack of opportunity to bring in the pivoted state, the tool shell in a, for example, the film plane parallel position and, if necessary, perform a simple change of the upper tool.
  • the object of the present invention is to provide a workstation and a packaging machine in which the disadvantages described above can be eliminated.
  • the work station according to the invention for a packaging machine preferably for a thermoforming packaging machine, has a main body of the workstation and a tool which, via at least one pivot arm relative to the base body to a first pivot axis is pivotable, wherein the tool is pivotable relative to the pivot arm about a second pivot axis.
  • Media connections for electrical, compressed air, vacuum and / or cooling water can be made pluggable or have sufficient cable length to allow the rotation of the tool.
  • the tool is preferably locked by means of a locking member releasably on the pivot arm to be selectively coupled to the pivotal movement of the pivot arm about the first pivot axis. This gives the possibility to raise the tool in a secured position.
  • the locking member is provided as a set screw or spring-loaded locking pin.
  • the locking member in at least one predetermined pivot position of the tool relative to the pivot arm in a recess, e.g. a bore or an internal thread, engage to lock the tool in the pivot position. This is useful so that the tool can be safely returned to the working position during pivoting back.
  • the second pivot axis of the work station according to the invention is preferably defined by a pivot pin which is received in a slot on the pivot axis.
  • the tool is preferably detachable from the swivel arm or from two swivel arms. This allows easy replacement of a tool by, for example, the tool is attached to a lifting device and the tool while lifted and simultaneously lifted out of the slot of the pivot arms. In the reverse manner, the new tool can be lifted by means of the gift pins back into the slots.
  • a gate is provided, in which a slider is movable and which is curved about the second pivot axis.
  • the slider is expediently removable from the backdrop to release the tool from the pivot arm to perform a tool change as described above can.
  • the slider is part of a provided on the pivot arm screw.
  • the pivotal movement of the tool about the second pivot axis is limited by the interaction between the screw and the gate.
  • the workstation provides a mechanism for a manual operation or a motor drive for driving the pivoting movement of the pivot arm about the first pivot axis.
  • gas springs or pneumatic cylinders may be provided on one or both sides of the pivot arms to counteract the weight of the tool so far that the adjusting forces on the pivot axis are correspondingly low and thus a mechanism is designed as a transmission so that by means of a crank, the tool manually can be swiveled in a few turns. It is also possible to make the transmission and the translation therein so that there is a self-locking.
  • gas springs When using gas springs, they can be mounted so that in the end of the pivotal movement upwards, the gas spring forces the tool upwards and in the end of the closing movement, the gas spring presses the tool in the working position.
  • the tool preferably includes a frame and one or more inserts received in the frame. If the workstation is designed as a forming station, the inserts can be designed as one or more heating plates. If the workstation is used as a sealing station, the inserts are executable as sealing glasses or sealing plate.
  • thermoforming packaging machine particularly advantageous is the use of the workstation according to the invention in a packaging machine, in particular a thermoforming packaging machine.
  • thermoforming packaging machine 1 with a forming station 2 and a sealing station 3 is shown as a workstation.
  • the forming station 2 has a tool upper part 4 as a tool and the sealing station 3 a sealing tool upper part 5.
  • a receptacle for a film 6 and the formed in the forming station 2 in the film 6 wells 7 can be seen.
  • products 9 to be packaged are made available for takeover by a robot 10 and inserted into the troughs 7 in the loading area 11.
  • the film 6 with the inserted products 9 and a cover film 12 are preferably welded together under a modified atmosphere and formed a package.
  • the film 6 is moved intermittently in the transport direction R.
  • FIG. 2 shows a mold upper part 4 of a workstation 2, 3 according to the invention with a base body 13 and two pivot arms 14, which is pivotable about a first pivot axis 15 which is aligned parallel to the transport direction R. That ⁇ s how it is a first pivot axis 15 perpendicular to the transport direction and approximately parallel to the film plane conceivable.
  • an axle extension 17 and a worm gear 18 can be moved from the operator side of the deep draw packaging machine 1, the pivot arm 14 about the pivot axis 15 with a few turns to come into a position in FIG. 3 is shown.
  • FIG. 3 a second pivot axis 19, a locking member 20, a pivot pin 21 and a frame 22 are shown.
  • FIG. 4 a position of the tool 4 is shown, in which the tool 4 is pivoted about the second pivot axis 19, brought into a vertical position.
  • the locking member 20 is previously solved so far, so that the tool 4 is decoupled from the pivot arm 14.
  • a slider 23 slides in a gate 24 provided on the outside of the frame 22 of the tool 4.
  • the slider 23 is a front end of a screw which is screwed into the pivot arm 14 and preferably has a bolt-like end which dips into the slot 24.
  • the bolt-like end of the slider 23 limits the maximum rotation, which is approximately 45 ° in the variant shown.
  • the rotation can be made up to 180 ° by the gate 24, which is curved around the second pivot axis 19, further formed and allows a larger area for limiting the pivoting movement. In this position of the tool 4, for example, the cleaning or maintenance of a hot plate 25, which is received in the frame 22, easily accessible to the operator and very well visible.
  • FIG. 5 is the tool 4 in a raised by pivoting the pivot arms 14, shown approximately parallel to the film transport plane position.
  • the heating plate 25 are released from the frame 22 and are deposited on a not shown under the tool 4 storage device and replaced by another.
  • a lifting device can be hooked by means of several chains to the eyelets 26 of the tool 4 and slide out by lifting the tool 4 from the slot 27 and replaced by a new tool.
  • FIG. 6 is a detailed view of the gate 24 and the pivot pin 21 is shown.
  • the pivot pin has a central portion in the form of a cylinder which supports the tool 4, 5 in the slot 27. At the outer free end of the outer diameter is larger in order to ensure lateral guidance relative to the pivot arm 14.
  • the pivot pin 21 may be directly connected to the tool 4, 5 or attached to a one-piece molding 28.
  • the link 23 and the pivot pin 21 are a part of the one-piece molding 28 which is fixed to the frame 22 of the tool 4 by means of four screws 29.
  • the recess 30 for the locking member 20 may be designed as a backdrop or by a plurality of individual recesses in the form of a blind bore with or without internal thread.
  • the scenes 24, 30 and the pivot pin 21 may also be attached directly to the frame 22 of the tool 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The working station comprises a base body and a tool (4) which is pivoted around a pivoting axis relative to the base body. The tool is pivoted around another pivoting axis (19) relative to a pivoting arm. The tool is locked by a locking unit at the pivoting arm in a detached manner.

Description

Die Erfindung bezieht sich auf eine Arbeitsstation gemäß dem Oberbegriff des Anspruchs 1 sowie auf eine Verpackungsmaschine gemäß dem Oberbegriff des Anspruchs 12.The invention relates to a workstation according to the preamble of claim 1 and to a packaging machine according to the preamble of claim 12.

Aus der DE 1002008015689 A1 ist eine Kammerbandmaschine bekannt, bei der ein Deckel vertikal anhebbar ausgeführt ist und in seiner oberen Stellung schwenkbar ausgeführt ist, damit eine gute Zugänglichkeit für ein Bedienpersonal für eine Wartung oder eine Reinigung möglich ist.From the DE 1002008015689 A1 a chamber belt machine is known in which a lid is designed to be vertically liftable and is designed to be pivotable in its upper position, so that good accessibility for an operator for maintenance or cleaning is possible.

Aus dem Stand der Technik sind ebenfalls Verpackungsmaschinen, im Besonderen Tiefziehverpackungsmaschinen, bekannt, wobei diese Arbeitsstationen wie eine Formstation und eine Siegelstation aufweisen, die jeweils ein Werkzeugoberteil beinhalten, das schwenkbar um eine horizontale Achse an einer Seite des Werkzeugoberteiles ausgeführt sind. Damit ist es möglich, das Werkzeugoberteil soweit nach oben zu schwenken, um die Unterseite zu reinigen oder eine Wartung bzw. einen Austausch von Einsätzen an der Unterseite des Werkzeugoberteiles vornehmen zu können. Nachteilig am Stand der Technik ist die fehlende Möglichkeit, in geschwenktem Zustand das Werkzeugoberteil in eine beispielsweise zur Folienebene parallele Lage zu bringen und bei Bedarf auch einen einfachen Wechsel des Werkzeugoberteiles auszuführen.Also known in the art are packaging machines, in particular thermoforming packaging machines, which include work stations such as a forming station and a sealing station each including a tool top pivotally mounted about a horizontal axis on one side of the tool top. This makes it possible to pivot the upper part of the tool as far as possible in order to clean the underside or to carry out maintenance or replacement of inserts on the underside of the upper part of the tool. A disadvantage of the prior art is the lack of opportunity to bring in the pivoted state, the tool shell in a, for example, the film plane parallel position and, if necessary, perform a simple change of the upper tool.

Aufgabe der vorliegenden Erfindung ist es, eine Arbeitsstation und eine Verpackungsmaschine zur Verfügung zu stellen, bei denen die vorstehend beschriebenen Nachteile beseitigt werden können.The object of the present invention is to provide a workstation and a packaging machine in which the disadvantages described above can be eliminated.

Diese Aufgabe wird gelöst durch eine Arbeitsstation mit den Merkmalen des Anspruchs 1 bzw. durch eine Verpackungsmaschine nach Anspruch 13. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a workstation having the features of claim 1 and by a packaging machine according to claim 13. Advantageous developments of the invention are specified in the subclaims.

Die erfindungsgemäße Arbeitsstation für eine Verpackungsmaschine, vorzugsweise für eine Tiefziehverpackungsmaschine, weist einen Grundkörper der Arbeitsstation und ein Werkzeug auf, das über mindestens einen Schwenkarm relativ zum Grundkörper um eine erste Schwenkachse schwenkbar ist, wobei das Werkzeug relativ zum Schwenkarm um eine zweite Schwenkachse schwenkbar ist. Dies ermöglicht es, dass das Werkzeug in einer durch die erste Schwenkbewegung einseitig angehobenen Stellung durch die zweite Schenkachse beweglich ist und eine Drehung des Werkzeugs bis 360° möglich ist. Medienanschlüsse für Elektrik, Druckluft, Vakuum und/oder Kühlwasser können dabei steckbar ausgeführt sein oder eine ausreichende Leitungslänge aufweisen, um die Drehung des Werkzeuges zu ermöglichen.The work station according to the invention for a packaging machine, preferably for a thermoforming packaging machine, has a main body of the workstation and a tool which, via at least one pivot arm relative to the base body to a first pivot axis is pivotable, wherein the tool is pivotable relative to the pivot arm about a second pivot axis. This makes it possible for the tool to be movable in a position raised by the first pivoting movement on one side by the second pivot axis and a rotation of the tool to 360 ° is possible. Media connections for electrical, compressed air, vacuum and / or cooling water can be made pluggable or have sufficient cable length to allow the rotation of the tool.

Das Werkzeug wird vorzugsweise mittels eines Arretierglieds lösbar am Schwenkarm arretiert, um wahlweise an die Schwenkbewegung des Schwenkarms um die erste Schwenkachse gekoppelt zu sein. Hierdurch ist die Möglichkeit gegeben, das Werkzeug in einer gesicherten Position anzuheben.The tool is preferably locked by means of a locking member releasably on the pivot arm to be selectively coupled to the pivotal movement of the pivot arm about the first pivot axis. This gives the possibility to raise the tool in a secured position.

In einer vorteilhaften Ausführungsform ist das Arretierglied als Stellschraube oder federbelasteter Arretierstift vorgesehen.In an advantageous embodiment, the locking member is provided as a set screw or spring-loaded locking pin.

Dabei kann das Arretierglied in zumindest einer vorbestimmten Schwenkstellung des Werkzeugs relativ zum Schwenkarm in eine Vertiefung, z.B. eine Bohrung oder ein Innengewinde, eingreifen, um das Werkzeug in der Schwenkstellung zu arretieren. Dies ist sinnvoll, damit das Werkzeug beim Zurückschwenken sicher in die Arbeitsposition zurückführbar ist.In this case, the locking member in at least one predetermined pivot position of the tool relative to the pivot arm in a recess, e.g. a bore or an internal thread, engage to lock the tool in the pivot position. This is useful so that the tool can be safely returned to the working position during pivoting back.

Die zweite Schwenkachse der erfindungsgemäßen Arbeitstation wird bevorzugt von einem Schwenkstift definiert, der in einem Schlitz an der Schwenkachse aufgenommen ist.The second pivot axis of the work station according to the invention is preferably defined by a pivot pin which is received in a slot on the pivot axis.

Bei der erfindungsgemäßen Arbeitsstation ist das Werkzeug vorzugsweise vom Schwenkarm bzw. von zwei Schwenkarmen lösbar. Dies ermöglicht einen einfachen Austausch eines Werkzeuges, indem zum Beispiel das Werkzeug an einer Hebevorrichtung angehängt wird und das Werkzeug dabei angehoben und gleichzeitig aus dem Schlitz der Schwenkarme herausgehoben wird. In der umgekehrten Weise kann das neue Werkzeug mittels der Schenkstifte wieder in die Schlitze eingehoben werden.In the work station according to the invention, the tool is preferably detachable from the swivel arm or from two swivel arms. This allows easy replacement of a tool by, for example, the tool is attached to a lifting device and the tool while lifted and simultaneously lifted out of the slot of the pivot arms. In the reverse manner, the new tool can be lifted by means of the gift pins back into the slots.

Am Werkzeug oder am Schwenkarm ist beispielsweise eine Kulisse vorgesehen, in der ein Gleitstück bewegbar ist und die um die zweite Schwenkachse gekrümmt ist.On the tool or on the pivot arm, for example, a gate is provided, in which a slider is movable and which is curved about the second pivot axis.

Das Gleitstück ist zweckmäßig aus der Kulisse entfernbar, um das Werkzeug vom Schwenkarm zu lösen, um einen wie oben beschriebenen Werkzeugwechsel ausführen zu können.The slider is expediently removable from the backdrop to release the tool from the pivot arm to perform a tool change as described above can.

In einer vorteilhaften Ausführung ist das Gleitstück ein Teil einer am Schwenkarm vorgesehenen Schraube. Die Schwenkbewegung des Werkzeugs um die zweite Schwenkachse wird durch das Zusammenwirken zwischen der Schraube und der Kulisse begrenzt.In an advantageous embodiment, the slider is part of a provided on the pivot arm screw. The pivotal movement of the tool about the second pivot axis is limited by the interaction between the screw and the gate.

Die erfindungsgemäße Arbeitsstation sieht eine Mechanik für eine manuelle Bedienung oder einen motorischen Antrieb zum Antreiben der Schwenkbewegung des Schwenkarms um die erste Schwenkachse vor. Dabei können Gasdruckfedern oder Pneumatikzylinder an einer oder beiden Seiten an den Schwenkarmen vorgesehen sein, um der Gewichtskraft des Werkzeugs soweit entgegenzuwirken, dass die Verstellkräfte an der Schwenkachse entsprechend gering sind und somit eine Mechanik als Getriebe so ausgeführt ist, dass mittels einer Kurbel das Werkzeug manuell in wenigen Umdrehungen geschwenkt werden kann. Dabei ist es auch möglich, das Getriebe und die Übersetzung darin so zu gestalten, dass eine Selbsthemmung vorliegt.The workstation according to the invention provides a mechanism for a manual operation or a motor drive for driving the pivoting movement of the pivot arm about the first pivot axis. In this case, gas springs or pneumatic cylinders may be provided on one or both sides of the pivot arms to counteract the weight of the tool so far that the adjusting forces on the pivot axis are correspondingly low and thus a mechanism is designed as a transmission so that by means of a crank, the tool manually can be swiveled in a few turns. It is also possible to make the transmission and the translation therein so that there is a self-locking.

Bei Verwendung von Gasdruckfedern können diese so angebracht sein, dass im Endbereich der Schwenkbewegung nach oben die Gasdruckfeder das Werkzeug nach oben drückt und im Endbereich der Schließbewegung die Gasdruckfeder das Werkzeug in die Arbeitsposition drückt.When using gas springs, they can be mounted so that in the end of the pivotal movement upwards, the gas spring forces the tool upwards and in the end of the closing movement, the gas spring presses the tool in the working position.

Das Werkzeug weist vorzugsweise einen Rahmen und einen oder mehrere in dem Rahmen aufgenommene Einsätze auf. Ist die Arbeitsstation als Formstation ausgebildet, können die Einsätze als eine oder mehrere Heizplatten ausgeführt sein. Ist die Arbeitsstation als Siegelstation verwendet, sind die Einsätze als Siegelbrille oder Siegelplatte ausführbar.The tool preferably includes a frame and one or more inserts received in the frame. If the workstation is designed as a forming station, the inserts can be designed as one or more heating plates. If the workstation is used as a sealing station, the inserts are executable as sealing glasses or sealing plate.

Besonders vorteilhaft ist der Einsatz der erfindungsgemäßen Arbeitsstation in einer Verpackungsmaschine, insbesondere einer Tiefziehverpackungsmaschine.Particularly advantageous is the use of the workstation according to the invention in a packaging machine, in particular a thermoforming packaging machine.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher dargestellt.

Figur 1
zeigt eine schematische Ansicht einer Tiefziehverpackungsmaschine,
Figur 2
zeigt eine schematische Ansicht einer erfindungsgemäßen Arbeitsstation in einer geschlossenen Stellung,
Figur 3
zeigt eine schematische Ansicht einer erfindungsgemäßen Arbeitsstation in einer geschwenkten Stellung,
Figur 4
zeigt eine schematische Ansicht einer erfindungsgemäßen Arbeitsstation mit in der zweiten Schwenkachse geschwenktem Werkzeug,
Figur 5
zeigt eine schematische Ansicht einer erfindungsgemäßen Arbeitsstation in geöffneter Stellung und mit horizontal geschwenktem Werkzeug,
Figur 6
zeigt eine schematische Detailansicht des Werkzeugs am Bereich der zweiten Schwenkachse.
In the following, an advantageous embodiment of the invention is illustrated in more detail with reference to a drawing.
FIG. 1
shows a schematic view of a thermoforming packaging machine,
FIG. 2
shows a schematic view of a workstation according to the invention in a closed position,
FIG. 3
shows a schematic view of a workstation according to the invention in a pivoted position,
FIG. 4
shows a schematic view of a workstation according to the invention with pivoted in the second pivot axis tool,
FIG. 5
shows a schematic view of a workstation according to the invention in the open position and with horizontally swiveled tool,
FIG. 6
shows a schematic detail view of the tool at the region of the second pivot axis.

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

In Figur 1 ist eine Tiefziehverpackungsmaschine 1 mit einer Formstation 2 und einer Siegelstation 3 als Arbeitsstation dargestellt. Die Formstation 2 weist als Werkzeug ein Formwerkzeugoberteil 4 und die Siegelstation 3 ein Siegelwerkzeugoberteil 5 auf. Ebenso ist eine Aufnahme für eine Folie 6 sowie die in der Formstation 2 in die Folie 6 geformten Mulden 7 zu erkennen. Über ein Zuführsystem 8 werden zu verpackende Produkte 9 zur Übernahme durch einen Roboter 10 bereitgestellt und im Einlegebereich 11 in die Mulden 7 eingelegt. In der Siegelstation 3 werden die Folie 6 mit den eingelegten Produkten 9 und eine Deckelfolie 12 miteinander bevorzugt unter modifizierter Atmosphäre verschweißt und eine Verpackung gebildet. Über ein nicht dargestelltes Transportsystem wird die Folie 6 in Transportrichtung R intermittierend bewegt.In FIG. 1 a thermoforming packaging machine 1 with a forming station 2 and a sealing station 3 is shown as a workstation. The forming station 2 has a tool upper part 4 as a tool and the sealing station 3 a sealing tool upper part 5. Likewise, a receptacle for a film 6 and the formed in the forming station 2 in the film 6 wells 7 can be seen. By means of a feed system 8, products 9 to be packaged are made available for takeover by a robot 10 and inserted into the troughs 7 in the loading area 11. In the sealing station 3, the film 6 with the inserted products 9 and a cover film 12 are preferably welded together under a modified atmosphere and formed a package. About an unillustrated transport system, the film 6 is moved intermittently in the transport direction R.

Figur 2 zeigt ein Formwerkzeugoberteil 4 einer erfindungsgemäßen Arbeitsstation 2, 3 mit einem Grundkörper 13 und zwei Schwenkarmen 14, die um eine erste Schwenkachse 15, die parallel zur Transportrichtung R ausgerichtet ist, schwenkbar ist. Es ist ebenso eine erste Schwenkachse 15 senkrecht zur Transportrichtung und annähernd parallel zur Folienebene denkbar. Mittels einer an- und absteckbaren Handkurbel 16, einer Achsverlängerung 17 und einem Schneckengetriebe 18 kann von der Bedienerseite der Tief ziehverpackungsmaschine 1 der Schwenkarm 14 um die Schwenkachse 15 mit wenigen Umdrehungen bewegt werden, um in eine Position zu kommen, die in Figur 3 dargestellt ist. FIG. 2 shows a mold upper part 4 of a workstation 2, 3 according to the invention with a base body 13 and two pivot arms 14, which is pivotable about a first pivot axis 15 which is aligned parallel to the transport direction R. That `s how it is a first pivot axis 15 perpendicular to the transport direction and approximately parallel to the film plane conceivable. By means of a dockable hand crank 16, an axle extension 17 and a worm gear 18 can be moved from the operator side of the deep draw packaging machine 1, the pivot arm 14 about the pivot axis 15 with a few turns to come into a position in FIG. 3 is shown.

Zuvor müssen nicht gezeigte Schrauben gelöst werden, um das Werkzeug 4 aus der Arbeitsposition zu lösen. In Figur 3 sind eine zweite Schwenkachse 19, ein Arretierglied 20, ein Schwenkstift 21 und ein Rahmen 22 dargestellt. Das Arretierglied 20, als federbelasteter Stift ausgeführt, sichert in Verbindung mit einer Vertiefung im Werkzeug die Position, bei der das Werkzeug 4 und die Schwenkarme 14 zueinander gekoppelt sind.Previously, not shown screws must be solved to release the tool 4 from the working position. In FIG. 3 a second pivot axis 19, a locking member 20, a pivot pin 21 and a frame 22 are shown. The locking member 20, designed as a spring-loaded pin, secured in conjunction with a recess in the tool, the position at which the tool 4 and the pivot arms 14 are coupled to each other.

In Figur 4 ist eine Stellung des Werkzeugs 4 dargestellt, bei der das Werkzeug 4, um die zweite Schwenkachse 19 geschwenkt, in eine vertikale Stellung gebracht ist. Hierfür wird zuvor das Arretierglied 20 soweit gelöst, so dass das Werkzeug 4 vom Schwenkarm 14 entkoppelt ist.In FIG. 4 a position of the tool 4 is shown, in which the tool 4 is pivoted about the second pivot axis 19, brought into a vertical position. For this purpose, the locking member 20 is previously solved so far, so that the tool 4 is decoupled from the pivot arm 14.

Ein Gleitstück 23 gleitet in einer außen am Rahmen 22 des Werkzeugs 4 vorgesehenen Kulisse 24. Das Gleitstück 23 ist ein vorderes Ende einer Schraube, die in dem Schwenkarm 14 eingeschraubt ist und vorzugsweise ein bolzenartiges Ende aufweist, das in die Kulisse 24 eintaucht. Das bolzenartige Ende des Gleitstücks 23 begrenzt die maximale Drehung, die in der gezeigten Variante ungefähr 45° beträgt. In einer nicht dargestellten Variante kann die Drehung bis 180° ermöglicht werden, indem die Kulisse 24, die um die zweite Schwenkachse 19 gekrümmt ist, weiter ausgeformt ist und einen größeren Bereich für die Begrenzung der Schwenkbewegung zulässt. In dieser Position des Werkzeugs 4 ist beispielsweise die Reinigung oder Wartung einer Heizplatte 25, die im Rahmen 22 aufgenommen ist, für das Bedienpersonal gut zugänglich und sehr gut einsehbar.A slider 23 slides in a gate 24 provided on the outside of the frame 22 of the tool 4. The slider 23 is a front end of a screw which is screwed into the pivot arm 14 and preferably has a bolt-like end which dips into the slot 24. The bolt-like end of the slider 23 limits the maximum rotation, which is approximately 45 ° in the variant shown. In a variant, not shown, the rotation can be made up to 180 ° by the gate 24, which is curved around the second pivot axis 19, further formed and allows a larger area for limiting the pivoting movement. In this position of the tool 4, for example, the cleaning or maintenance of a hot plate 25, which is received in the frame 22, easily accessible to the operator and very well visible.

In Figur 5 ist das Werkzeug 4 in einer durch Schwenken der Schwenkarme 14 angehobenen, zur Folientransportebene annähernd parallelen Stellung dargestellt. In dieser Stellung kann beispielsweise die Heizplatte 25 aus dem Rahmen 22 gelöst werden und auf eine nicht dargestellte unter dem Werkzeug 4 befindliche Ablagevorrichtung abgesetzt werden und durch eine anderer ersetzt werden.In FIG. 5 is the tool 4 in a raised by pivoting the pivot arms 14, shown approximately parallel to the film transport plane position. In this position, for example, the heating plate 25 are released from the frame 22 and are deposited on a not shown under the tool 4 storage device and replaced by another.

Um einen Werkzeugwechsel auszuführen, kann eine nicht gezeigte Hebeeinrichtung mittels mehrerer Ketten an den Halteösen 26 des Werkzeugs 4 eingehängt werden und durch Anheben das Werkzeug 4 aus dem Schlitz 27 herausgleiten und durch ein neues Werkzeug ersetzt werden.To perform a tool change, a lifting device, not shown, can be hooked by means of several chains to the eyelets 26 of the tool 4 and slide out by lifting the tool 4 from the slot 27 and replaced by a new tool.

In Figur 6 ist eine Detailansicht der Kulisse 24 und des Schwenkstiftes 21 dargestellt. Der Schwenkstift besitzt eine mittleren Bereich in Form eines Zylinders, der das Werkzeug 4, 5 in dem Schlitz 27 lagert. Am äußeren freien Ende ist der Außendurchmesser größer, um eine seitliche Führung gegenüber dem Schwenkarm 14 zu gewährleisten. Der Schwenkstift 21 kann direkt mit dem Werkzeug 4, 5 verbunden sein oder an einem einteiligen Formteil 28 angebracht sein. In der gezeigten Ausführung sind die Kulisse 23 und der Schwenkstift 21 ein Teil des einteiligen Formteils 28, das an dem Rahmen 22 des Werkzeugs 4 mittels vier Schrauben 29 befestigt ist.In FIG. 6 is a detailed view of the gate 24 and the pivot pin 21 is shown. The pivot pin has a central portion in the form of a cylinder which supports the tool 4, 5 in the slot 27. At the outer free end of the outer diameter is larger in order to ensure lateral guidance relative to the pivot arm 14. The pivot pin 21 may be directly connected to the tool 4, 5 or attached to a one-piece molding 28. In the embodiment shown, the link 23 and the pivot pin 21 are a part of the one-piece molding 28 which is fixed to the frame 22 of the tool 4 by means of four screws 29.

Die Vertiefung 30 für das Arretierglied 20 kann als Kulisse ausgeführt sein oder durch mehrere einzelne Vertiefungen in Form einer Sackbohrung mit oder ohne Innengewinde.The recess 30 for the locking member 20 may be designed as a backdrop or by a plurality of individual recesses in the form of a blind bore with or without internal thread.

Die Kulissen 24, 30 und der Schwenkstift 21 können auch direkt am Rahmen 22 des Werkzeugs 4 angebracht sein.The scenes 24, 30 and the pivot pin 21 may also be attached directly to the frame 22 of the tool 4.

Claims (12)

Arbeitsstation (2, 3) für eine Verpackungsmaschine (1), mit einem Grundkörper (13) der Arbeitsstation (2, 3) und einem Werkzeug (4, 5), das über mindestens einen Schwenkarm (14) relativ zum Grundkörper (13) um eine erste Schwenkachse (15) schwenkbar ist, dadurch gekennzeichnet, dass das Werkzeug (4, 5) relativ zum Schwenkarm (14) um eine zweite Schwenkachse (19) schwenkbar ist.Workstation (2, 3) for a packaging machine (1), with a base body (13) of the workstation (2, 3) and a tool (4, 5), the at least one pivot arm (14) relative to the base body (13) to a first pivot axis (15) is pivotable, characterized in that the tool (4, 5) relative to the pivot arm (14) about a second pivot axis (19) is pivotable. Arbeitsstation nach Anspruch 1, dadurch gekennzeichnet, dass das Werkzeug (4, 5) mittels eines Arretierglieds (20) lösbar am Schwenkarm (14) arretierbar ist, um wahlweise an die Schwenkbewegung des Schwenkarms (14) um die erste Schwenkachse (15) gekoppelt zu sein.Workstation according to claim 1, characterized in that the tool (4, 5) by means of a locking member (20) releasably on the pivot arm (14) can be locked to selectively coupled to the pivotal movement of the pivot arm (14) about the first pivot axis (15) be. Arbeitsstation nach Anspruch 2, dadurch gekennzeichnet, dass als Arretierglied (20) eine Stellschraube oder ein federbelasteter Stift am Schwenkarm (14) vorgesehen ist.Workstation according to claim 2, characterized in that a locking screw or a spring-loaded pin on the pivot arm (14) is provided as a locking member (20). Arbeitsstation nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das Arretierglied (20) in zumindest einer vorbestimmten Schwenkstellung des Werkzeugs (4, 5) relativ zum Schwenkarm (14) in eine Vertiefung (30) eingreifen kann, um das Werkzeug (4, 5) in der Schwenkstellung zu arretieren.Workstation according to one of claims 2 or 3, characterized in that the locking member (20) in at least one predetermined pivot position of the tool (4, 5) relative to the pivot arm (14) can engage in a recess (30) to the tool (4 , 5) to lock in the pivot position. Arbeitsstation nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Schwenkachse (19) von einem Schwenkstift (21) definiert wird, der in einem Schlitz (27) an der Schwenkachse (19) aufgenommen ist.Workstation according to one of the preceding claims, characterized in that the second pivot axis (19) by a pivot pin (21) is defined, which is received in a slot (27) on the pivot axis (19). Arbeitsstation nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Werkzeug (4, 5) vom Schwenkarm (14) lösbar ist.Workstation according to one of the preceding claims, characterized in that the tool (4, 5) from the pivot arm (14) is releasable. Arbeitsstation nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass am Werkzeug (4, 5) oder am Schwenkarm (14) eine Kulisse vorgesehen ist, in der ein Gleitstück (23) bewegbar ist und die um die zweite Schwenkachse (19) gekrümmt ist.Workstation according to one of the preceding claims, characterized in that on the tool (4, 5) or on the pivot arm (14) is provided a link in which a slider (23) is movable and which is curved about the second pivot axis (19). Arbeitsstation nach Anspruch 7, dadurch gekennzeichnet, dass das Gleitstück (23) aus der Kulisse (24) entfernbar ist, um das Werkzeug (4, 5) vom Schwenkarm (14) zu lösen.Workstation according to claim 7, characterized in that the slider (23) from the link (24) is removable to release the tool (4, 5) from the pivot arm (14). Arbeitsstation nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass das Gleitstück (23) ein Abschnitt einer an dem Schwenkarm (14) vorgesehenen Schraube ist.Workstation according to one of claims 7 or 8, characterized in that the slider (23) is a portion of a provided on the pivot arm (14) screw. Arbeitsstation nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass ein Motor oder eine Mechanik (18) zum Antreiben der Schwenkbewegung des Schwenkarms (14) um die erste Schwenkachse (15) vorgesehen ist.Workstation according to one of the preceding claims, characterized in that a motor or a mechanism (18) for driving the pivoting movement of the pivot arm (14) about the first pivot axis (15) is provided. Arbeitsstation nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Werkzeug (4, 5) einen Rahmen (22) und einen oder mehrere in dem Rahmen aufgenommene Einsätze (25) aufweist.Workstation according to one of the preceding claims, characterized in that the tool (4, 5) has a frame (22) and one or more inserts (25) received in the frame. Verpackungsmaschine (1) mit einer Arbeitsstation (2, 3) nach einem der vorangehenden Ansprüche.Packaging machine (1) with a work station (2, 3) according to one of the preceding claims.
EP11003667.0A 2010-05-07 2011-05-04 Work station for packaging machine Active EP2384980B1 (en)

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DE102011101051A1 (en) * 2011-05-10 2012-11-15 Multivac Sepp Haggenmüller Gmbh & Co. Kg Tool changer
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WO2017174667A1 (en) * 2016-04-07 2017-10-12 Gea Food Solutions Germany Gmbh Packaging machine comprising an upper part that can be pivoted
EP3238917A1 (en) * 2016-04-28 2017-11-01 Alkar-RapidPak, Inc. Clamping devices for clamping die members onto web packaging machines
EP3254977A1 (en) * 2016-06-09 2017-12-13 Alkar-RapidPak, Inc. Lifting assemblies for assisting movement of die boxes on web packaging machines
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WO2024132445A1 (en) 2022-12-23 2024-06-27 Weber Food Technology Gmbh Work station for a packaging machine and method for removing a lower tool from a work station of a packaging machine
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EP3238917A1 (en) * 2016-04-28 2017-11-01 Alkar-RapidPak, Inc. Clamping devices for clamping die members onto web packaging machines
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EP2384980B1 (en) 2013-12-18
ES2448397T3 (en) 2014-03-13

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