EP3294636B1 - Packaging machine having a lifting device - Google Patents

Packaging machine having a lifting device Download PDF

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Publication number
EP3294636B1
EP3294636B1 EP16715546.4A EP16715546A EP3294636B1 EP 3294636 B1 EP3294636 B1 EP 3294636B1 EP 16715546 A EP16715546 A EP 16715546A EP 3294636 B1 EP3294636 B1 EP 3294636B1
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EP
European Patent Office
Prior art keywords
station
packaging machine
lifting
frame
packaging
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Revoked
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EP16715546.4A
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German (de)
French (fr)
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EP3294636A1 (en
Inventor
Frank Runte
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GEA Food Solutions Germany GmbH
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GEA Food Solutions Germany GmbH
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Application filed by GEA Food Solutions Germany GmbH filed Critical GEA Food Solutions Germany GmbH
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    • 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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear
    • 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

Definitions

  • the present invention relates to a packaging machine, for producing a packaging, with a sealing station, which seals a film web to a packaging tray, which may have been deep drawn into a film web, wherein the sealing station at least one lower tool, which is raised or lowered with a lifting station and the lifting station has a toggle which supports the lower tool in its raised position.
  • thermoformers or tray sealers are known from the prior art, for example EP 1 772 418 B1 known.
  • a lower film web is unrolled from a supply roll and transported intermittently along the packaging machine.
  • a thermoformer first of all a packaging tray is formed in the lower film web in a forming station, which is then filled with a packaged product, in particular a foodstuff. Subsequently, the packaging tray is sealed in a sealing station with a top film which is sealed to the lower film.
  • the film web is also unrolled from a supply roll.
  • the forming and / or the sealing station generally have a lower and an upper tool, wherein the lower tool is below the lower film web and the upper tool above the upper film web.
  • the respective lower tool When forming the packaging tray into the lower film web and / or when sealing a top film to the lower film web, the respective lower tool must be raised and lowered again by an index before the further transport of the packaging trays.
  • the upper tool In some cases, the upper tool must be raised or lowered, preferably in opposite synchronous to the movement of the upper tool.
  • the packaging machine has at least one lifting station, preferably one lifting station per tool.
  • packaging machines with an ever greater preferred length must be made available and / or additional units, such as a heater, for example, which are moved together with the tool, are provided to a forming and / or sealing tool.
  • EP 0 895 933 A1 also discloses a packaging machine with a lifting device for a work station.
  • the present invention relates to a packaging machine.
  • a packaging machine may be, for example, a so-called thermoformer, but also a tray sealer, on which plastic films are generally processed.
  • thermoformer for example, a lower film web is unrolled from a supply roll and transported intermittently along the packaging machine.
  • a forming station first a packaging tray is formed in the lower film web, which is then filled with a packaged product, in particular a foodstuff. Subsequently, the packaging tray is sealed in a sealing station with one or more top films which are sealed to the lower film.
  • the film web is also unrolled from a supply roll.
  • the sealing station but as a rule also the forming station has a lower tool, which is raised or lowered by a lifting station.
  • the lifting station in turn has at least one toggle which supports the lower tool in its raised position.
  • a toggle consists of at least two levers, which are rotatably connected.
  • the lifting station has a frame on which one end of the toggle lever is mounted, wherein the bearing of the toggle lever is provided outside the frame.
  • the frame consists of two side parts, which are interconnected by two connecting elements.
  • the side parts are preferably yoke-shaped, so that they have a large bending resistance torque.
  • the side parts and the connecting elements are screwed together.
  • the lifting station has two toggle levers, which are respectively provided outside the frame.
  • the toggle are mirror-symmetrical to a drive provided which stretches and kinks the toggle.
  • the lifting station has a lifting table which is raised and lowered.
  • the lower tool is provided on the lifting table and can be raised or lowered therewith.
  • one end of a toggle lever is connected to the lifting table.
  • the movement of the lifting table is guided by at least two, preferably four guide rods.
  • the lifting table per guide rod to a plain bearing and / or rolling bearing, with which the lifting table along the guide rod runs and is guided.
  • the frame is connected to the guide rods.
  • the guide rods carry the frame.
  • the lifting station has a drive which is arranged between the frame and the lifting table.
  • the drive is a pneumatic and / or hydraulic cylinder and / or a pneumatic / hydraulic combination cylinder or a motor, in particular an electric motor, preferably an electric linear motor.
  • the drive moves the lift table from the lowered to the raised position and vice versa.
  • the drive (23) is rotatably mounted on the frame of the stroke, in particular on the same axis of rotation axis as the one lever of the toggle lever or at least collinear to the axis of rotation of a lever of the toggle joint.
  • a stop is provided on the lifting table and / or its toggle and / or its frame and / or its drive, which prevents over-rotation of the toggle lever.
  • the stop prevents the drive from continuing to turn the toggle, i. overstretched.
  • the stop can be mechanical and / or electronic.
  • the packaging machine has a forming station with a lifting station which lowers and raises a lower die of the forming station. Such a packaging machine is then a so-called thermoformer. Alternatively or additionally, a cutting tool which separates the finished packages may also be equipped with the lifting device described above.
  • FIG. 1 shows the packaging machine 1 according to the invention, in the present case, a so-called thermoformer, which has a thermoforming station 2, a filling station 7 and a sealing station 15.
  • a lower film web 8, here a plastic film web 8 is withdrawn from a supply roll and cyclically transported along the packaging machine according to the invention from right to left.
  • the film roll is usually mounted on a shaft.
  • the sub-web 8 is further transported by a preference, wherein it requires several advantages to produce a finished package.
  • the packaging machine has two transport means (not shown), in the present case in each case two endless chains, which are arranged to the right and left of the lower film web 8.
  • Both at the beginning and at the end of the packaging machine at least one gear is provided for each chain in each case, around which the respective chain is deflected. At least one of these gears is driven.
  • the gears in the input area and / or in the output area may be connected to each other, preferably by a rigid shaft.
  • Each transport means has a plurality of clamping means which grip the lower film web 8 in the inlet region 19 in a clamping manner and transmit the movement of the transport means to the lower film web 8. In the outlet region of the packaging machine, the clamping connection between the transport and the lower film web 8 is released again. Downstream of the inlet region 19, a heating means is provided which heats the film web 8, especially when it is stationary.
  • thermoforming station 2 which here has an upper tool 3 and a lower tool 4, which has the shape of the packaging tray to be produced, the packaging trays 6 are formed in the warmed film web 8.
  • the lower tool 4 is arranged on a lifting table 5, which, as symbolized by the double arrow, is vertically adjustable, which is determined by the basis of Figures 2 and 3 explained lifting device takes place.
  • the lower tool 4 is lowered and then raised again.
  • the packaging trays are then filled in the filling station 7 with the packaged goods 16.
  • the subsequent sealing station 15 which also consists of an upper tool 12 and a vertically adjustable lower tool 11, a top film 14 is firmly bonded, for example, by sealing to the lower film web 8.
  • the upper tool and / or the lower tool are lowered or raised before and after each film transport.
  • the upper film 14 is unrolled by a film roll, which is mounted on a shaft, and can be guided in means of transport or be transported by transport chains, said transport then extend only from the sealing station and possibly downstream. Otherwise, the statements that have been made to the means of transport of the lower film apply.
  • the upper foil can also be warmed up with a heating medium and deep-drawn.
  • a lower tool 11 for example, a heatable sealing frame having per packaging tray an opening into which the packaging tray during sealing, ie immersed in the upward movement of the Untersiegelwerkmaschinemaschines.
  • a dancer is preferably provided, which compensates the intermittent feed of the lower film 8 and thus the intermittent withdrawal of the upper film web 14.
  • the dancer can serve as a film web storage and / or for generating a specific film tension.
  • a dancer is then provided in the course of each top sheet.
  • a dancer can also be provided in the region of the lower film 8, preferably downstream of the supply roll.
  • the finished packages are separated, which takes place in the present case with the cross cutter 18 and the slitter 17.
  • the cross cutter 18 can also be raised or lowered in the present case with a lifting device 9.
  • the packaging machine according to the invention may also be a so-called tray sealer, in which filled packaging trays are closed with a cover film.
  • Figures 2 and 3 show the lifting station 9 of the packaging machine according to the invention, which raise and lower a lower tool 4, 11 and / or an upper tool 3, 12 of the forming or sealing station.
  • the lifting station has at least one, in the present case, two toggle levers 13, which are each provided with a first lever arm 20 and a second lever arm 21.
  • the one end of the lever arm 20 is preferably rotatably connected to a lifting table 5.
  • the other end of the first lever arm 20 is rotatably connected to one end of the second lever arm 21, the other end of which is in turn rotatably connected to a frame 27.
  • the lifting table 5 and thus the on it located tools can be transferred from a lowered, in a raised position. For this, the respective knee lever is either bent or stretched.
  • the lifting device 9 has a drive, which is designed in the present case as a pneumatic cylinder, wherein the cylinder is rotatably provided on the frame and the cylinder rod rotatably mounted on the lifting table.
  • the frame 27 consists of two side parts 24 which are yoke-shaped in the present case. These two side parts 24 are connected to each other by two connecting elements 25, for example by the illustrated screw connection.
  • the lifting device 9 at least two, here four, guide rods 10 which guide the lifting table 5 in its up and down movement.
  • For the lifting table is equipped with plain bearings 26, wherein in each case a sliding bearing cooperates with a guide rod.
  • the toggle 13 are each outside the frame 27, which is spanned by the two side parts 24 and the connecting elements 25. As a result, the risk of tilting of the bearings 26 is at least reduced and the entire lifting station can absorb larger torques.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Closing Of Containers (AREA)

Description

Die vorliegende Erfindung betrifft eine Verpackungsmaschine, zur Herstellung einer Verpackung, mit einer Siegelstation, die eine Folienbahn an eine Verpackungsmulde siegelt, die gegebenenfalls in eine Folienbahn tiefgezogen worden ist, wobei die Siegelstation zumindest ein Unterwerkzeug, das mit einer Hubstation angehoben bzw. abgesenkt wird und die Hubstation einen Kniehebel aufweist, der das Unterwerkzeug in seiner angehobenen Position abstützt.The present invention relates to a packaging machine, for producing a packaging, with a sealing station, which seals a film web to a packaging tray, which may have been deep drawn into a film web, wherein the sealing station at least one lower tool, which is raised or lowered with a lifting station and the lifting station has a toggle which supports the lower tool in its raised position.

Derartige Verpackungsmaschinen, beispielsweise sogenannte Thermoformer oder Traysealer, sind aus dem Stand der Technik, beispielsweise der EP 1 772 418 B1 bekannt. Bei diesen Verpackungsmaschinen wird beispielsweise eine Unterfolienbahn von einer Vorratsrolle abgerollt und intermittierend entlang der Verpackungsmaschine transportiert. Beim Thermoformer wird in einer Formstation zunächst eine Verpackungsmulde in die Unterfolienbahn geformt, die anschließend mit einem Verpackungsgut, insbesondere einem Lebensmittel, befüllt wird. Anschließend wird die Verpackungsmulde in einer Siegelstation mit einer Oberfolie, die an die Unterfolie gesiegelt wird, verschlossen. Die Folienbahn wird dabei ebenfalls von einer Vorratsrolle abgerollt. Die Form- und/oder die Siegelstation weisen in der Regel ein Unter- und ein Oberwerkzeug auf, wobei sich das Unterwerkzeug unterhalb der Unterfolienbahn und das Oberwerkzeug oberhalb der Oberfolienbahn befindet. Beim Formen der Verpackungsmulde in die Unterfolienbahn und/oder beim Siegeln einer Oberfolie an die Unterfolienbahn, muss das jeweilige Unterwerkzeug angehoben und beim vor dem Weitertransport der Verpackungsmulden um einen Index wieder abgesenkt werden. In manchen Fällen muss auch das Oberwerkzeug angehoben bzw. abgesenkt werden, vorzugsweise gegenläufig synchron zur Bewegung des Oberwerkzeugs. Dafür weist die Verpackungsmaschine mindestens eine Hubstation, vorzugsweise eine Hubstation pro Werkzeug auf. Heutzutage müssen Verpackungsmaschinen mit einer immer größeren Vorzuglänge zur Verfügung gestellt werden und/oder an ein Form- und/oder Siegelwerkzeuge werden zusätzliche Aggregate wie beispielsweise eine Heizung vorgesehen, die mit dem Werkzeug gemeinsam bewegt werden.Such packaging machines, for example so-called thermoformers or tray sealers are known from the prior art, for example EP 1 772 418 B1 known. In these packaging machines, for example, a lower film web is unrolled from a supply roll and transported intermittently along the packaging machine. In the case of a thermoformer, first of all a packaging tray is formed in the lower film web in a forming station, which is then filled with a packaged product, in particular a foodstuff. Subsequently, the packaging tray is sealed in a sealing station with a top film which is sealed to the lower film. The film web is also unrolled from a supply roll. The forming and / or the sealing station generally have a lower and an upper tool, wherein the lower tool is below the lower film web and the upper tool above the upper film web. When forming the packaging tray into the lower film web and / or when sealing a top film to the lower film web, the respective lower tool must be raised and lowered again by an index before the further transport of the packaging trays. In some cases, the upper tool must be raised or lowered, preferably in opposite synchronous to the movement of the upper tool. For this purpose, the packaging machine has at least one lifting station, preferably one lifting station per tool. Nowadays, packaging machines with an ever greater preferred length must be made available and / or additional units, such as a heater, for example, which are moved together with the tool, are provided to a forming and / or sealing tool.

EP 0 895 933 A1 offenbart auch eine Verpackungsmaschine mit eine Hubeinrichtung für eine Arbeitsstation. EP 0 895 933 A1 also discloses a packaging machine with a lifting device for a work station.

Es war deshalb die Aufgabe der vorliegenden Erfindung eine Verpackungsmaschine mit einer verbesserten Hubstation zur Verfügung zu stellen, die insbesondere den oben genannten Anforderungen genügt.It was therefore the object of the present invention to provide a packaging machine with an improved lifting station, which in particular satisfies the above-mentioned requirements.

Gelöst wird die Aufgabe mit einer Verpackungsmaschine nach Anspruch 1.The problem is solved with a packaging machine according to claim 1.

Die vorliegende Erfindung betrifft eine Verpackungsmaschine. Bei einer derartigen Verpackungsmaschine kann es sich beispielsweise um einen sogenannten Thermoformer, aber auch um einen Traysealer handeln, auf denen in der Regel Kunststofffolien verarbeitet werden. Beim Thermoformer wird beispielsweise eine Unterfolienbahn von einer Vorratsrolle abgerollt und intermittierend entlang der Verpackungsmaschine transportiert. In einer Formstation wird zunächst eine Verpackungsmulde in die Unterfolienbahn geformt, die anschließend mit einem Verpackungsgut, insbesondere einem Lebensmittel, befüllt wird. Anschließend wird die Verpackungsmulde in einer Siegelstation mit einer oder mehreren Oberfolien, die an die Unterfolie gesiegelt werden, verschlossen. Die Folienbahn wird dabei ebenfalls von einer Vorratsrolle abgerollt.The present invention relates to a packaging machine. Such a packaging machine may be, for example, a so-called thermoformer, but also a tray sealer, on which plastic films are generally processed. In the thermoformer, for example, a lower film web is unrolled from a supply roll and transported intermittently along the packaging machine. In a forming station, first a packaging tray is formed in the lower film web, which is then filled with a packaged product, in particular a foodstuff. Subsequently, the packaging tray is sealed in a sealing station with one or more top films which are sealed to the lower film. The film web is also unrolled from a supply roll.

Erfindungsgemäß weist die Siegelstation, in der Regel aber auch die Formstation ein Unterwerkzeug auf, das mit einer Hubstation angehoben bzw. abgesenkt wird. Die Hubstation wiederum verfügt über mindestens einen Kniehebel, der das Unterwerkzeug in seiner angehobenen Position abstützt. Ein Kniehebel besteht aus mindestens zwei Hebeln, die drehbar miteinander verbunden sind. Erfindungsgemäß weist die Hubstation einen Rahmen auf, an dem ein Ende des Kniehebels gelagert ist, wobei die Lagerung des Kniehebels außerhalb des Rahmens vorgesehen ist.According to the invention, the sealing station, but as a rule also the forming station has a lower tool, which is raised or lowered by a lifting station. The lifting station in turn has at least one toggle which supports the lower tool in its raised position. A toggle consists of at least two levers, which are rotatably connected. According to the invention, the lifting station has a frame on which one end of the toggle lever is mounted, wherein the bearing of the toggle lever is provided outside the frame.

Vorzugsweise besteht der Rahmen aus zwei Seitenteilen, die durch zwei Verbindungselemente miteinander verbunden sind. Die Seitenteile sind vorzugsweise jochartig gestaltet, so dass sie ein großes Biegewiderstandsmoment aufweisen. Vorzugsweise sind die Seitenteile und die Verbindungselemente miteinander verschraubt. Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung weist die Hubstation zwei Kniehebel auf, die jeweils außerhalb des Rahmens vorgesehen sind. Vorzugsweise sind die Kniehebel spiegelsymmetrisch zu einem Antrieb vorgesehen, der die Kniehebel streckt und abwinkelt.Preferably, the frame consists of two side parts, which are interconnected by two connecting elements. The side parts are preferably yoke-shaped, so that they have a large bending resistance torque. Preferably, the side parts and the connecting elements are screwed together. According to a preferred embodiment of the present invention, the lifting station has two toggle levers, which are respectively provided outside the frame. Preferably, the toggle are mirror-symmetrical to a drive provided which stretches and kinks the toggle.

Vorzugsweise weist die Hubstation einen Hubtisch auf, der angehoben und abgesenkt wird Auf dem Hubtisch ist das Unterwerkzeug vorgesehen und kann mit diesem angehoben bzw. abgesenkt werden. Vorzugsweise ist jeweils ein Ende eines Kniehebels mit dem Hubtisch verbunden.Preferably, the lifting station has a lifting table which is raised and lowered. The lower tool is provided on the lifting table and can be raised or lowered therewith. Preferably, one end of a toggle lever is connected to the lifting table.

Vorzugsweise wird die Bewegung des Hubtischs durch mindestens zwei, vorzugsweise vier Führungsstangen geführt. Dafür weist der Hubtisch pro Führungsstange ein Gleitlager und/oder Wälzlager auf, mit dem der Hubtisch entlang der Führungsstange läuft und dabei geführt wird.Preferably, the movement of the lifting table is guided by at least two, preferably four guide rods. For this, the lifting table per guide rod to a plain bearing and / or rolling bearing, with which the lifting table along the guide rod runs and is guided.

Vorzugsweise ist der Rahmen mit den Führungsstangen verbunden. Besonders bevorzugt tragen die Führungsstangen den Rahmen.Preferably, the frame is connected to the guide rods. Particularly preferably, the guide rods carry the frame.

Die Hubstation weist einen Antrieb auf, der zwischen dem Rahmen und dem Hubtisch angeordnet ist. Beispielsweise handelt es sich bei dem Antrieb um einen Pneumatik- und/oder Hydraulikzylinder und/oder ein pneumatisch-/hydraulische Kombizylinder oder einen Motor, insbesondere einen Elektromotor, vorzugsweise einen Elektrolinearmotor. Der Antrieb bewegt den Hubtisch von der abgesenkten in die angehobene Stellung und umgekehrt. Der Antrieb (23) ist drehbar an dem Rahmen des Hubes gelagert, insbesondere auf derselben Drehachsachse wie der eine Hebel des Kniehebels oder zumindest kollinear zu der Drehachse eines Hebels des Kniehebelgelenks.The lifting station has a drive which is arranged between the frame and the lifting table. For example, the drive is a pneumatic and / or hydraulic cylinder and / or a pneumatic / hydraulic combination cylinder or a motor, in particular an electric motor, preferably an electric linear motor. The drive moves the lift table from the lowered to the raised position and vice versa. The drive (23) is rotatably mounted on the frame of the stroke, in particular on the same axis of rotation axis as the one lever of the toggle lever or at least collinear to the axis of rotation of a lever of the toggle joint.

Vorzugsweise ist an dem Hubtisch und/oder seinem Kniehebel und/oder seinem Rahmen und /oder seinem Antrieb ein Anschlag vorgesehen, der ein Überdrehen des Kniehebels verhindert. Sobald sich die beiden Hebel des Kniehebels in einer Linie befinden, d.h. der Kniehebel vollständig gestreckt ist, verhindert der Anschlag, dass der Antrieb den Kniehebel weiterdreht, d.h. überstreckt. Der Anschlag kann mechanisch und/oder elektronisch sein. Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung weist die Verpackungsmaschine eine Formstation mit einer Hubstation auf, die ein Unterwerkzeug der Formstation abgesenkt und anhebt. Bei einer solchen Verpackungsmaschine handelt es sich dann um einen sogenannten Thermoformer. Alternativ oder zusätzlich kann auch ein Schneidwerkzeug, das die fertiggestellten Verpackungen vereinzelt, mit der oben beschriebenen Hubvorrichtung ausgestattet sein.Preferably, a stop is provided on the lifting table and / or its toggle and / or its frame and / or its drive, which prevents over-rotation of the toggle lever. Once the two levers of the bell crank are in line, i. the toggle is fully extended, the stop prevents the drive from continuing to turn the toggle, i. overstretched. The stop can be mechanical and / or electronic. According to a preferred embodiment of the present invention, the packaging machine has a forming station with a lifting station which lowers and raises a lower die of the forming station. Such a packaging machine is then a so-called thermoformer. Alternatively or additionally, a cutting tool which separates the finished packages may also be equipped with the lifting device described above.

Durch die oben beschriebene Hubstation wird eine steife Abstützung von dem Ober- und/oder dem Unterwerkzeug der Form- und/oder Siegel- und/oder Schneidstation, mit deren möglichen außermittig angeordneten Zusatzbaugruppen wie beispielsweise einer Vorheizung vor der Formstation erzielt. Alternativ oder zusätzlich wird die Belastung, die auf die im Kraftfluss liegenden Bauteile wirken, vor allem bei zwei mit großem Abstand vorgesehenen Kniehebeln, minimiert.By the lifting station described above, a stiff support of the upper and / or lower tool of the forming and / or sealing and / or cutting station, achieved with their possible eccentrically arranged additional modules such as preheating before the forming station. Alternatively or additionally, the load, which act on the components lying in the power flow, especially in two widely spaced toggle levers, minimized.

Im Folgenden werden die Erfindungen anhand der Figuren erläutert. Diese Erläuterungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Die Erläuterungen gelten für alle Gegenstände der vorliegenden Erfindung gleichermaßen.

Figur 1
zeigt die erfindungsgemäße Verpackungsmaschine.
Figur 2 und 3
zeigen jeweils eine Ansicht eines Hubes der Verpackungsmaschine
The inventions will be explained below with reference to the figures. These explanations are merely exemplary and do not limit the general inventive concept. The explanations apply equally to all articles of the present invention.
FIG. 1
shows the packaging machine according to the invention.
FIGS. 2 and 3
each show a view of a stroke of the packaging machine

Figur 1 zeigt die erfindungsgemäße Verpackungsmaschine 1, in dem vorliegenden Fall ein sogenannter Thermoformer, die eine Tiefziehstation 2, eine Füllstation 7 sowie eine Siegelstation 15 aufweist. Eine Unterfolienbahn 8, hier eine Kunststofffolienbahn 8, wird von einer Vorratsrolle abgezogen und taktweise entlang der erfindungsgemäßen Verpackungsmaschine von rechts nach links transportiert. Die Folienrolle ist in der Regel auf einer Welle gelagert. Bei einem Takt wird die Unterfolienbahn 8 um einen Vorzug weitertransportiert, wobei es mehrerer Vorzüge bedarf, um eine fertige Verpackung herzustellen. Dafür weist die Verpackungsmaschine zwei Transportmittel (nicht dargestellt), in dem vorliegenden Fall jeweils zwei Endlosketten, auf, die rechts und links von der Unterfolienbahn 8 angeordnet sind. Sowohl am Anfang als auch am Ende der Verpackungsmaschine ist für jede Kette jeweils mindestens ein Zahnrad vorgesehen, um das die jeweilige Kette umgelenkt wird. Mindestens eines dieser Zahnräder ist angetrieben. Die Zahnräder im Eingangsbereich und/oder im Ausgangsbereich können miteinander, vorzugsweise durch eine starre Welle, verbunden sein. Jedes Transportmittel weist eine Vielzahl von Klemmmitteln auf, die die Unterfolienbahn 8 im Einlaufbereich 19 klemmend ergreifen und die Bewegung des Transportmittels auf die Unterfolienbahn 8 übertragen. Im Auslaufbereich der Verpackungsmaschine wird die klemmende Verbindung zwischen dem Transportmittel und der Unterfolienbahn 8 wieder gelöst. Stromabwärts von dem Einlaufbereich 19 ist ein Heizmittel vorgesehen, das die Folienbahn 8 erwärmt, insbesondere wenn diese stillsteht. In der Tiefziehstation 2, die hier über ein Oberwerkzeug 3 und ein Unterwerkzeug 4 verfügt, das die Form der herzustellenden Verpackungsmulde aufweist, werden die Verpackungsmulden 6 in die angewärmte Folienbahn 8 geformt. Das Unterwerkzeug 4 ist auf einem Hubtisch 5 angeordnet, der, wie durch den Doppelpfeil symbolisiert wird, vertikal verstellbar ist, was durch die anhand der Figuren 2 und 3 erläuterte Hubvorrichtung erfolgt. Vor jedem Folienvorschub wird das Unterwerkzeug 4 abgesenkt und danach wieder angehoben. Im weiteren Verlauf der Verpackungsmaschine werden die Verpackungsmulden dann in der Füllstation 7 mit dem Verpackungsgut 16 befüllt. In der sich daran anschließenden Siegelstation 15, die ebenfalls aus einem Oberwerkzeug 12 und einem vertikal verstellbaren Unterwerkzeug 11 besteht, wird eine Oberfolie 14 stoffschlüssig beispielsweise durch Siegeln an der Unterfolienbahn 8 befestigt. Auch in der Siegelstation werden das Oberwerkzeug und/oder das Unterwerkzeug vor und nach jedem Folientransport abgesenkt bzw. angehoben. Auch die Oberfolie 14 wird von einer Folienrolle, die auf einer Welle gelagert ist, abgerollt und kann in Transportmitteln geführt sein bzw. von Transportketten transportiert werden, wobei sich diese Transportmittel dann nur von der Siegelstation und ggf. stromabwärts erstrecken. Ansonsten gelten die Ausführungen, die zu den Transportmitteln der Unterfolie gemacht wurden. Auch die Oberfolie kann mit einem Heizmittel angewärmt und tiefgezogen werden. Für das Siegeln ist als Unterwerkzeug 11 beispielweise ein heizbarer Siegelrahmen vorgesehen, der pro Verpackungsmulde eine Öffnung aufweist, in die die Verpackungsmulde beim Siegeln, d.h. bei der Aufwärtsbewegung des Untersiegelwerkzeugs, eintaucht. Zum Siegeln werden die Ober- und die Unterfolienbahn zwischen dem Ober- und dem Unterwerkzeug 12, 11 zusammengepresst und verbinden sich unter dem Einfluss von Wärme und Druck. Nach dem Siegeln werden die Werkzeuge 11, 12 wieder vertikal auseinanderbewegt. Zwischen der jeweiligen Vorratsrolle und dem Siegelwerkzeug ist vorzugsweise ein Tänzer vorgesehen, der den intermittierenden Vorschub der Unterfolie 8 und damit den intermittierenden Abzug der Oberfolienbahn 14 ausgleicht. Der Tänzer kann als Folienbahnspeicher und/oder zur Erzeugung einer bestimmten Folienspannung dienen. Der Fachmann versteht, dass mehrere Oberfolien vorhanden sein können, beispielsweise bei einer mehrlagigen Packung oder einer Packung mit mehreren Oberfolien. Vorzugsweise ist dann im Verlauf jeder Oberfolie ein Tänzer vorgesehen. Der Fachmann versteht des Weiteren, dass auch im Bereich der Unterfolie 8 ein Tänzer vorgesehen sein kann, vorzugsweise stromabwärts von deren Vorratsrolle. Im weiteren Verlauf der Verpackungsmaschine werden die fertiggestellten Verpackungen vereinzelt, was in dem vorliegenden Fall mit dem Querschneider 18 und dem Längsschneider 17 erfolgt. Der Querschneider 18 ist in dem vorliegenden Fall ebenfalls mit einer Hubeinrichtung 9 anhebbar bzw. absenkbar. FIG. 1 shows the packaging machine 1 according to the invention, in the present case, a so-called thermoformer, which has a thermoforming station 2, a filling station 7 and a sealing station 15. A lower film web 8, here a plastic film web 8, is withdrawn from a supply roll and cyclically transported along the packaging machine according to the invention from right to left. The film roll is usually mounted on a shaft. At one stroke, the sub-web 8 is further transported by a preference, wherein it requires several advantages to produce a finished package. For this purpose, the packaging machine has two transport means (not shown), in the present case in each case two endless chains, which are arranged to the right and left of the lower film web 8. Both at the beginning and at the end of the packaging machine at least one gear is provided for each chain in each case, around which the respective chain is deflected. At least one of these gears is driven. The gears in the input area and / or in the output area may be connected to each other, preferably by a rigid shaft. Each transport means has a plurality of clamping means which grip the lower film web 8 in the inlet region 19 in a clamping manner and transmit the movement of the transport means to the lower film web 8. In the outlet region of the packaging machine, the clamping connection between the transport and the lower film web 8 is released again. Downstream of the inlet region 19, a heating means is provided which heats the film web 8, especially when it is stationary. In the thermoforming station 2, which here has an upper tool 3 and a lower tool 4, which has the shape of the packaging tray to be produced, the packaging trays 6 are formed in the warmed film web 8. The lower tool 4 is arranged on a lifting table 5, which, as symbolized by the double arrow, is vertically adjustable, which is determined by the basis of Figures 2 and 3 explained lifting device takes place. Before each film feed, the lower tool 4 is lowered and then raised again. In the further course of the packaging machine, the packaging trays are then filled in the filling station 7 with the packaged goods 16. In the subsequent sealing station 15, which also consists of an upper tool 12 and a vertically adjustable lower tool 11, a top film 14 is firmly bonded, for example, by sealing to the lower film web 8. Also in the sealing station the upper tool and / or the lower tool are lowered or raised before and after each film transport. The upper film 14 is unrolled by a film roll, which is mounted on a shaft, and can be guided in means of transport or be transported by transport chains, said transport then extend only from the sealing station and possibly downstream. Otherwise, the statements that have been made to the means of transport of the lower film apply. The upper foil can also be warmed up with a heating medium and deep-drawn. For sealing is provided as a lower tool 11, for example, a heatable sealing frame having per packaging tray an opening into which the packaging tray during sealing, ie immersed in the upward movement of the Untersiegelwerkzeugs. For sealing, the upper and lower film webs between the upper and lower dies 12, 11 are pressed together and combine under the influence of heat and pressure. After sealing, the tools 11, 12 are moved apart vertically again. Between the respective supply roll and the sealing tool, a dancer is preferably provided, which compensates the intermittent feed of the lower film 8 and thus the intermittent withdrawal of the upper film web 14. The dancer can serve as a film web storage and / or for generating a specific film tension. The person skilled in the art understands that several top films may be present, for example in a multi-layered package or a package with several top films. Preferably, a dancer is then provided in the course of each top sheet. The person skilled in the art will further understand that a dancer can also be provided in the region of the lower film 8, preferably downstream of the supply roll. In the further course of the packaging machine, the finished packages are separated, which takes place in the present case with the cross cutter 18 and the slitter 17. The cross cutter 18 can also be raised or lowered in the present case with a lifting device 9.

Die erfindungsgemäße Verpackungsmaschine kann auch ein sogenannter Traysealer sein, bei dem gefüllte Verpackungsmulden mit einer Deckelfolie verschlossen werden.The packaging machine according to the invention may also be a so-called tray sealer, in which filled packaging trays are closed with a cover film.

Figuren 2 und 3 zeigen die Hubstation 9 der erfindungsgemäßen Verpackungsmaschine, die ein Unterwerkzeug 4, 11 und/oder ein Oberwerkzeug 3, 12 der Form- oder Siegelstation anheben und absenken. Erfindungsgemäß weist die Hubstation mindestens ein, in dem vorliegenden Fall 2 Kniehebel 13 auf, die jeweils mit einem ersten Hebelarm 20 und einem zweiten Hebelarm 21 versehen sind. Das eine Ende des Hebelarms 20 ist vorzugsweise drehbar mit einem Hubtisch 5 verbunden. Das andere Ende des ersten Hebelarms 20 ist drehbar mit einem Ende des zweiten Hebelarms 21 verbunden, dessen anderes Ende wiederum drehbar mit einem Rahmen 27 verbunden ist. Der Hubtisch 5 und damit die darauf befindlichen Werkzeuge können von einer abgesenkten, in eine angehobene Stellung überführt werden. Dafür wird der jeweilige Kniehebel entweder gebeugt oder gestreckt. Im gestreckten Zustand befinden sich die beiden Hebel in einer Linie und können somit maximal viel Kraft aufnehmen. Für das Anheben bzw. Absenken des Hubtischs 5 weist die Hubvorrichtung 9 einen Antrieb auf, der in dem vorliegenden Fall als Pneumatikzylinder ausgeführt ist, wobei der Zylinder drehbar an dem Rahmen und die Zylinderstange drehbar an dem Hubtisch vorgesehen sind. Der Rahmen 27 besteht aus zwei Seitenteilen 24, die in dem vorliegenden Fall jochartig ausgeführt sind. Diese beiden Seitenteile 24 werden durch zwei Verbindungselemente 25 miteinander verbunden, beispielsweise durch die dargestellte Schraubverbindung. In einer bevorzugten Ausführungsform weist die Hubvorrichtung 9 mindestens zwei, hier vier, Führungsstangen 10 auf, die den Hubtisch 5 bei seiner Auf und Ab-Bewegung führen. Dafür ist der Hubtisch mit Gleitlagern 26 ausgestattet, wobei jeweils ein Gleitlager mit einer Führungsstange zusammenwirkt. Figures 2 and 3 show the lifting station 9 of the packaging machine according to the invention, which raise and lower a lower tool 4, 11 and / or an upper tool 3, 12 of the forming or sealing station. According to the invention, the lifting station has at least one, in the present case, two toggle levers 13, which are each provided with a first lever arm 20 and a second lever arm 21. The one end of the lever arm 20 is preferably rotatably connected to a lifting table 5. The other end of the first lever arm 20 is rotatably connected to one end of the second lever arm 21, the other end of which is in turn rotatably connected to a frame 27. The lifting table 5 and thus the on it located tools can be transferred from a lowered, in a raised position. For this, the respective knee lever is either bent or stretched. In the stretched state, the two levers are in line and thus can absorb a maximum of force. For lifting or lowering the lifting table 5, the lifting device 9 has a drive, which is designed in the present case as a pneumatic cylinder, wherein the cylinder is rotatably provided on the frame and the cylinder rod rotatably mounted on the lifting table. The frame 27 consists of two side parts 24 which are yoke-shaped in the present case. These two side parts 24 are connected to each other by two connecting elements 25, for example by the illustrated screw connection. In a preferred embodiment, the lifting device 9 at least two, here four, guide rods 10 which guide the lifting table 5 in its up and down movement. For the lifting table is equipped with plain bearings 26, wherein in each case a sliding bearing cooperates with a guide rod.

Wie aus beiden Figuren 2 und 3 deutlich zu erkennen ist, befinden sich die Kniehebel 13 jeweils außerhalb des Rahmens 27, der durch die beiden Seitenteile 24 sowie die Verbindungselemente 25 aufgespannt wird. Dadurch wird die Gefahr des Verkantens der Lager 26 zu mindestens vermindert und die gesamte Hubstation kann größere Drehmomente aufnehmen.Like both Figures 2 and 3 can be clearly seen, the toggle 13 are each outside the frame 27, which is spanned by the two side parts 24 and the connecting elements 25. As a result, the risk of tilting of the bearings 26 is at least reduced and the entire lifting station can absorb larger torques.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Verpackungsmaschinepackaging machine
22
Formstation, TiefziehstationForming station, thermoforming station
33
Oberwerkzeug der TiefziehstationUpper tool of the thermoforming station
44
Unterwerkzeug der TiefziehstationLower tool of the thermoforming station
55
Hubtisch, Träger eines Werkzeugs der Siegel-, Tiefziehstation und/oder der SchneideinrichtungLifting table, carrier of a tool of the sealing, thermoforming station and / or the cutting device
66
Verpackungsmuldepackaging tray
77
Füllstationfilling station
88th
Folienbahn, UnterfolienbahnFilm web, sub-film web
99
Hubvorrichtung, HubstationLifting device, lifting station
1010
Führungsstangeguide rod
1111
Unterwerkzeug der SiegelstationLower tool of the sealing station
1212
Oberwerkzeug der SiegelstationUpper tool of the sealing station
1313
Kniehebeltoggle
1414
Oberfolienbahn, DeckelfolieUpper film web, lid film
1515
Siegelstationsealing station
1616
Verpackungsgutpackaged goods
1717
Längsschneiderslitter
1818
QuerschneiderSheeter
1919
Einlaufbereichintake area
2020
Erster HebelarmFirst lever arm
2121
Zweiter HebelarmSecond lever arm
2222
Drehlagerpivot bearing
2323
Antrieb, Linearantrieb, PneumatikzylinderDrive, linear drive, pneumatic cylinder
2424
Seitenteil, JochSide part, yoke
2525
Verbindungselementconnecting element
2626
Gleitlagerbearings
2727
Rahmenframe

Claims (9)

  1. Packaging machine (1) for producing an item of packaging, having a sealing station (15) which seals a film web (14) to a packaging trough (6) which optionally has been vacuum-formed in a film web (8), wherein the sealing station (15) has at least one lower tool (11) which is lifted or lowered, respectively, by a lifting station (9) and the lifting station (9) has a knuckle joint (13) which supports the lower tool in the lifted position thereof, wherein the lifting station has a frame (27) on which one end of the knuckle joint (13) is mounted, wherein the mounting of the knuckle joint is provided outside the frame, characterized in that the lifting station has a single drive (23) which is disposed between the frame (27) and the lifting table (5), and the drive is disposed so as to be rotatable on the frame (27).
  2. Packaging machine (1) according to Claim 1, characterized in that the frame (27) is composed of two lateral parts (24) which are connected to one another by two connection elements (25).
  3. Packaging machine according to one of the preceding claims, characterized in that the lifting station (9) has two knuckle joints (13) which are in each case provided outside the frame.
  4. Packaging machine (1) according to one of the preceding claims, characterized in that the lifting station (9) has a lifting table (5) which is lifted and lowered.
  5. Packaging machine (1) according to Claim 4, characterized in that the movement of the lifting table (5) is guided by at least two guide rods (10).
  6. Packaging machine (1) according to Claim 5, characterized in that the frame (27) is connected to the guide rods.
  7. Packaging machine (1) according to Claim 1, characterized in that the drive (23) is mounted on the frame (27) so as to be rotatable on the same axis as the knuckle joint (13).
  8. Packaging machine (1) according to Claims 1 or 7, characterized in that a detent that prevents excessive rotation of the knuckle joint (13) is provided on the lifting table (9).
  9. Packaging machine according to one of the preceding claims, characterized in that said packaging machine has a forming station having a lifting table (9).
EP16715546.4A 2015-05-13 2016-04-11 Packaging machine having a lifting device Revoked EP3294636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015208887 2015-05-13
PCT/EP2016/057925 WO2016180587A1 (en) 2015-05-13 2016-04-11 Packaging machine having a lifting device

Publications (2)

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EP3294636A1 EP3294636A1 (en) 2018-03-21
EP3294636B1 true EP3294636B1 (en) 2019-02-27

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EP16715546.4A Revoked EP3294636B1 (en) 2015-05-13 2016-04-11 Packaging machine having a lifting device

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EP (1) EP3294636B1 (en)
ES (1) ES2727554T3 (en)
TR (1) TR201907236T4 (en)
WO (1) WO2016180587A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102020134816A1 (en) 2020-12-23 2022-06-23 Multivac Sepp Haggenmüller Se & Co. Kg hoist

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107176354A (en) * 2017-07-07 2017-09-19 合肥杰源机电科技有限公司 A kind of packaging for foodstuff electromechanical equipment device
EP3966111A1 (en) * 2019-05-10 2022-03-16 GEA Food Solutions Germany GmbH Packaging machine without dancer

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EP0569937A1 (en) 1992-05-15 1993-11-18 Multivac Sepp Haggenmüller Kg Workstation in a packaging machine with movable lower part
EP0847920A1 (en) 1996-12-14 1998-06-17 Dixie-Union GmbH & Co. KG Packaging machine with a chamber consisting of an upper and a lower part
EP0895933A1 (en) 1997-08-08 1999-02-10 Multivac Sepp Haggenmüller Kg Lifting device for an operating station in a packaging machine
DE19960084A1 (en) 1999-12-13 2001-06-21 Kraemer & Grebe Kg Packing machine has work stations with tools mounted on vertically sliding plates moving in guides, crankshaft being attached at one end to bar fixed to each plate and at other end to drive which moves it clockwise and anti-clockwise
DE10327092A1 (en) 2003-06-13 2004-12-30 Cfs Germany Gmbh Work station and packaging machine
DE102006050415A1 (en) 2006-10-20 2008-04-24 Cfs Germany Gmbh Packaging machine with a controllable pneumatic / hydraulic drive
EP1772418B1 (en) 2005-10-06 2011-02-02 Reinhold Schulte Lifting device with a guided lifting table
DE102011011560A1 (en) 2011-02-18 2012-08-23 Jörg von Seggern Maschinenbau GmbH Lifting device for a tool
DE10351567B4 (en) 2003-11-03 2017-06-22 Gea Food Solutions Germany Gmbh Thermoformer with an electrolinear cylinder

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569937A1 (en) 1992-05-15 1993-11-18 Multivac Sepp Haggenmüller Kg Workstation in a packaging machine with movable lower part
EP0847920A1 (en) 1996-12-14 1998-06-17 Dixie-Union GmbH & Co. KG Packaging machine with a chamber consisting of an upper and a lower part
EP0895933A1 (en) 1997-08-08 1999-02-10 Multivac Sepp Haggenmüller Kg Lifting device for an operating station in a packaging machine
DE19960084A1 (en) 1999-12-13 2001-06-21 Kraemer & Grebe Kg Packing machine has work stations with tools mounted on vertically sliding plates moving in guides, crankshaft being attached at one end to bar fixed to each plate and at other end to drive which moves it clockwise and anti-clockwise
DE10327092A1 (en) 2003-06-13 2004-12-30 Cfs Germany Gmbh Work station and packaging machine
DE10351567B4 (en) 2003-11-03 2017-06-22 Gea Food Solutions Germany Gmbh Thermoformer with an electrolinear cylinder
EP1772418B1 (en) 2005-10-06 2011-02-02 Reinhold Schulte Lifting device with a guided lifting table
DE102006050415A1 (en) 2006-10-20 2008-04-24 Cfs Germany Gmbh Packaging machine with a controllable pneumatic / hydraulic drive
DE102011011560A1 (en) 2011-02-18 2012-08-23 Jörg von Seggern Maschinenbau GmbH Lifting device for a tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020134816A1 (en) 2020-12-23 2022-06-23 Multivac Sepp Haggenmüller Se & Co. Kg hoist
EP4019415A1 (en) 2020-12-23 2022-06-29 MULTIVAC Sepp Haggenmüller SE & Co. KG Hoisting gear

Also Published As

Publication number Publication date
ES2727554T3 (en) 2019-10-17
EP3294636A1 (en) 2018-03-21
WO2016180587A1 (en) 2016-11-17
TR201907236T4 (en) 2019-06-21

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