DE102006050417A1 - Packaging machine with a film thickness compensation - Google Patents

Packaging machine with a film thickness compensation Download PDF

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Publication number
DE102006050417A1
DE102006050417A1 DE102006050417A DE102006050417A DE102006050417A1 DE 102006050417 A1 DE102006050417 A1 DE 102006050417A1 DE 102006050417 A DE102006050417 A DE 102006050417A DE 102006050417 A DE102006050417 A DE 102006050417A DE 102006050417 A1 DE102006050417 A1 DE 102006050417A1
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DE
Germany
Prior art keywords
packaging machine
tool
machine according
lower tool
film
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.)
Withdrawn
Application number
DE102006050417A
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German (de)
Inventor
Hans Günter DONGES
Bruno Baumeister
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.)
GEA CFS Germany GmbH
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CFS Germany GmbH
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Filing date
Publication date
Application filed by CFS Germany GmbH filed Critical CFS Germany GmbH
Priority to DE102006050417A priority Critical patent/DE102006050417A1/en
Priority to PCT/EP2007/007671 priority patent/WO2008046471A1/en
Publication of DE102006050417A1 publication Critical patent/DE102006050417A1/en
Withdrawn legal-status Critical Current

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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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9231—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the displacement of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/954—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the thickness of the parts to be joined
    • 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
    • B65B59/003—Arrangements to enable adjustments related to the packaging 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
    • 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
    • B65B59/02—Arrangements to enable adjustments to be made while the machine is running
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8412—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
    • B29C66/84123—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height of different height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value

Abstract

Die vorliegende Aufgabe betrifft eine Verpackungsmaschine, auf der Folienbahnen mit unterschiedlicher Dicke verarbeitbar sind, mit einer Form- und/oder Tiefziehstation, die ein Unterwerkzeug und ein Oberwerkzeug aufweisen, die aufeinander zu- und voneinander wegbewegbar sind, die ein Mittel aufweist, mit dem der Abstand zwischen dem Oberwerkzeug und dem Unterwerkzeug an die jeweilige Foliendicke anpassbar ist.The present object relates to a packaging machine, are processed on the film webs of different thickness, with a forming and / or thermoforming station, which have a lower tool and an upper tool, which are movable towards each other and away from each other, having a means with which the Distance between the upper tool and the lower tool to the respective film thickness is customizable.

Description

Die vorliegende Erfindung betrifft eine Verpackungsmaschine auf der Folienbahnen mit unterschiedlicher Dicke verarbeitbar sind, mit einer Form- und/oder Tiefziehstation, die ein Unter- und ein Oberwerkzeug aufweisen, die aufeinander zu- und voneinander wegbewegbar sind.The The present invention relates to a packaging machine on the Film webs of different thickness are processable, with a forming and / or thermoforming station, a lower and an upper tool have, on each other and can be moved away from each other.

Derartige gattungsgemäße Verpackungsmaschinen sind aus dem Stand der Technik bekannt und werden beispielsweise als sogenannte Formfüllsiegel- oder Traysealer-Verpackungsmaschinen bezeichnet. Auf diesen Verpackungsmaschinen können unterschiedlichste Formate von Verpackungen hergestellt werden und Folien mit unterschiedlichen Dicken verarbeitet werden. Bei der Verarbeitung werden beispielsweise Verpackungsmulden in eine Folienbahn durch Tiefziehen eingeformt und/oder eine Oberfolie auf eine Verpackungsmulde gesiegelt. Sowohl beim Formen als auch beim Siegeln wirken ein Ober- und ein Unterwerkzeug zusammen, die mit einem bestimmten Druck gegeneinander gedrückt werden müssen. Dieser Druck darf nicht zu groß sein um zum einen die Werkzeuge aber auch die zu verarbeitende Folienbahn nicht zu beschädigen. Der Druck darf jedoch auch nicht zu gering sein, weil sich dadurch gegebenenfalls Undichtigkeiten oder ein zu geringer Druck beim Siegeln einstellt. Es ist unmittelbar verständlich, dass dieser Druck unter anderem auch von der Foliendicke abhängt, die zum einen von der jeweils zu verarbeitenden Folienbahn abhängt, die aber auch innerhalb einer Charge variieren kann.such generic packaging machines are known in the art and are, for example as so-called mold filling or tray sealer packaging machines designated. On these packaging machines a wide variety of formats are produced by packaging and films with different Thicknesses are processed. For example, during processing Packaging troughs molded into a film web by deep drawing and / or a top film sealed on a packaging tray. Either when forming as well as sealing act a top and a bottom tool together, which are pressed against each other with a certain pressure have to. This pressure must not be too big on the one hand the tools but also the film web to be processed not to damage. However, the pressure must not be too low, because by doing so if necessary, leaks or too little pressure during sealing established. It is immediately understandable that this pressure is below Another depends on the film thickness, on the one hand by the respective depends on the film web to be processed, but it can also vary within a batch.

Es war deshalb die Aufgabe der vorliegenden Erfindung, eine Verpackungsmaschine zur Verfügung zu stellen, auf der beliebig dicke Folien bzw. Folien, bei denen die Foliendicke innerhalb einer Charge variiert, verarbeitet werden können.It Therefore, the object of the present invention was a packaging machine to disposal to put on the arbitrarily thick films or films in which the film thickness varies within a batch, processed can.

Gelöst wird die Aufgabe mit einer Verpackungsmaschine auf der Folienbahnen mit unterschiedlicher Dicke verarbeitbar sind, mit einer Form- und/oder Tiefziehstation, die ein Unterwerkzeug und ein Oberwerkzeug aufweisen, die aufeinander zu- und voneinander wegbewegbar sind, die ein Mittel aufweist, mit dem der Abstand zwischen dem Oberwerkzeug und dem Unterwerkzeug an die jeweilige Foliendicke anpassbar ist.Is solved the task with a packaging machine on the film webs with different thickness can be processed, with a shape and / or Thermoforming station, which have a lower tool and an upper tool, which are movable towards and away from each other, which has a means with the distance between the upper tool and the lower tool is adaptable to the respective film thickness.

Es war durch den Fachmann überaus erstaunlich und nicht zu erwarten, dass es mit der erfindungsgemäßen Verpackungsmaschine möglich ist, beliebige Folienbahnen zu verarbeiten. Die Foliendicke innerhalb einer Charge kann sogar bei der erfindungsgemäßen Verpackungsmaschine variieren. Die erfindungsgemäße Verpackungsmaschine ist einfach herzustellen und zu betreiben.It was over the expert amazing and not to expect it with the packaging machine according to the invention possible is to process any film webs. The film thickness inside a batch may even vary in the packaging machine according to the invention. The packaging machine according to the invention is easy to make and operate.

Erfindungsgemäß weist die Verpackungsmaschine Werkzeuge, ein Ober und ein Unterwerkzeug auf, wobei sich das Unterwerkzeug unterhalb und das Oberwerkzeug oberhalb der zu verarbeitenden Folienbahn befindet. Das Unter- und/oder das Oberwerkzeug sind von einer abgesenkten Position in eine angehobene Stellung, dem sogenannten Schließzustand überführbar. In diesem Schließzustand ist es wichtig, dass der Abstand zwischen dem Ober- und dem Unterwerkzeug eine bestimmte Größe aufweist. Erfindungsgemäß weist die Verpackungsmaschine ein Mittel auf, mit dem der Abstand zwischen dem Oberwerkzeug und dem Unterwerkzeug im Schließzustand an die jeweilige Foliendicke anpassbar ist. Dadurch ist es möglich, dass Folien unterschiedlichster Dicke und/oder Zusammensetzung auf der erfindungsgemäßen Verpackungsmaschine verarbeitet werden können.According to the invention the packaging machine tools, a top and a bottom tool on, with the lower tool below and the upper tool above the film web to be processed is located. The lower and / or the Upper tools are raised from a lowered position to a raised position Position, the so-called closed state transferable. In this closed state It is important that the distance between the top and bottom tools has a certain size. According to the invention the packaging machine a means of limiting the distance between the upper tool and the lower tool in the closed state to the respective film thickness customizable is. This makes it possible that films of different thickness and / or composition the packaging machine according to the invention can be processed.

Vorzugsweise erfolgt die Anpassung des Abstandes zwischen dem Oberwerkzeug und dem Unterwerkzeug automatisch. Dies kann beispielsweise dadurch erfolgen, dass in dem jeweils zu verarbeitenden Werkzeug ein Transponder vorhanden ist, der einer Steuerungseinheit der erfindungsgemäßen Verpackungsmaschine übermittelt um was für ein Werkzeug es sich handelt, insbesondere welche Höhe das jeweilige Werkzeug aufweist. Diese Information kann aber auch manuell oder über andere Mittel, wie beispielsweise einen Barcode, an das Steuerungssystem übertragen werden. Basierend auf diesen Informationen stellt die Verpackungsmaschine dann automatisch den gewünschten Abstand zwischen dem Ober- und dem Unterwerkzeug im Schließzustand ein.Preferably the adjustment of the distance between the upper tool and the lower tool automatically. This can be done, for example be done that in each tool to be processed a transponder is present, which transmits a control unit of the packaging machine according to the invention what kind of a tool is involved, in particular what height the respective Tool has. This information can also be manually or over others Means, such as a bar code, transmitted to the control system become. Based on this information represents the packaging machine then automatically the desired Distance between the upper and the lower tool in the closed state.

Besonders bevorzugt werden dem System auch noch Informationen über die derzeit zu verarbeitende Folienbahn übermittelt. Dies kann ebenfalls über ein optisches Lesegerät und/oder über einen Transponder, der sich am Anfang der Folienbahn befindet, geschehen. Eine manuelle Eingabe des Folientyps ist ebenfalls denkbar.Especially The system also prefers information about the currently being processed film web transmitted. This can also be over optical reader and / or over a transponder, which is located at the beginning of the film web happen. A manual input of the film type is also conceivable.

Dieser Information werden vorzugsweise noch zusätzlich von der Steuerung der erfindungsgemäßen Verpackungsmaschine hinzugezogen um den gewünschten Abstand zwischen Ober- und Unterwerkzeug im Schließzustand einzustellen.This Information is preferably additionally from the control of inventive packaging machine involved in the desired Distance between upper and lower tool in the closed state adjust.

Die gewünschten Abstände sind vorzugsweise abhängig von dem Werkzeug und/oder von dem jeweiligen Folientyp in der Maschinensteuerung abgespeichert und werden dann entsprechend abgerufen.The desired distances are preferably dependent from the tool and / or from the respective film type in the machine control stored and are then retrieved accordingly.

In einer anderen bevorzugten Ausführungsform weist die erfindungsgemäße Verpackungsmaschine einen Sensor, beispielsweise eine Kamera auf, die die Foliendicke und/oder den Abstand zwischen dem Unter- und Oberwerkzeug im Schließzustand ermittelt und den jeweiligen Wert ebenfalls an eine Steuereinheit übermittelt. Die Steuereinheit vergleicht diesen Wert mit dem gewünschten Sollwert und stellt daraufhin den Spalt gegebenenfalls neu ein. Diese bevorzugte Ausführungsform der vorliegenden Erfindung hat insbesondere den Vorteil, dass Folien mit variierender Schichtdicke verarbeitet werden können.In another preferred embodiment, the packaging machine according to the invention has a sensor, for example a camera, which adjusts the film thickness and / or the distance between the lower and upper tool in the closing was determined and the respective value also transmitted to a control unit. The control unit compares this value with the desired setpoint and then adjusts the gap if necessary. This preferred embodiment of the present invention has the particular advantage that films with varying layer thickness can be processed.

Eine weitere Möglichkeit den Abstand zwischen dem Unter- und Oberwerkzeug im Schließzustand optimal einzustellen ist ein Drucksensor, der den Druck zwischen der Folienbahn und dem jeweiligen Werkzeug im Schließzustand ermittelt. Dieser Wert wird sodann vorzugsweise mit einem Sollwert verglichen und der Abstand zwischen dem Ober- und dem Unterwerkzeug entsprechend eingestellt.A another possibility the distance between the lower and upper tool in the closed state optimally adjust is a pressure sensor, the pressure between the film web and the respective tool in the closed state determined. This value is then preferably compared with a setpoint and the distance between the upper and the lower tool accordingly set.

Vorzugsweise weist das Mittel zur Einstellung des Abstandes zwischen dem Ober- und dem Unterwerkzeug einen Antrieb auf. Vorzugsweise handelt es sich bei dem Antrieb um einen Motor mit einem Geber, beispielsweise einem Servomotor, um zu jedem Zeitpunkt genau zu wissen, in welcher Stellung sich das jeweilige Mittel befindet bzw. wie groß der Abstand zwischen dem Ober- und dem Unterwerkzeug ist.Preferably has the means for adjusting the distance between the upper and the lower tool a drive on. Preferably, it is the drive to a motor with a transmitter, such as a servomotor, to know exactly at which point in which position the respective means is or how big the distance between the Upper and lower tool is.

Vorzugsweise besteht das Mittel zur Einstellung des Spaltes aus mindestens zwei Elementen, um sicher zu stellen, dass sich das Element bei der Spalteinstellung nicht schief stellt. Diese mindestens zwei Elemente können auch dazu verwendet werden, den Winkel zwischen Ober- und Unterwerkzeug zu korrigieren.Preferably is the means for adjusting the gap of at least two Elements to ensure that the element is in the column setting does not skew. These at least two elements can too used to adjust the angle between the upper and lower tool correct.

Vorzugsweise hat der Antrieb die Elemente gleich oder gegensinnig an, so dass es möglich ist, mit einem Antrieb beide Elemente zu verstellen.Preferably The drive has the same or opposite elements, so that it possible is to adjust both elements with one drive.

Besonders bevorzugt weist das Mittel eine schiefe Ebene auf, entlang derer sich das Unterwerkzeug bewegt und damit seine vertikale Lage verändert.Especially Preferably, the means has an inclined plane along which the lower tool moves and thus changes its vertical position.

Im Folgenden wird die Erfindung anhand der 1 und 2 erläutert. Diese Erläuterungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein.In the following, the invention is based on the 1 and 2 explained. These explanations are merely exemplary and do not limit the general inventive concept.

1 zeigt schematisch eine Ausführungsform der erfindungsgemäßen Verpackungsmaschine. 1 schematically shows an embodiment of the packaging machine according to the invention.

2 zeigt eine Ausführungsform des Mittels zur Einstellung des Spaltes zwischen dem Ober- und dem Unterwerkzeug. 2 shows an embodiment of the means for adjusting the gap between the upper and the lower tool.

1 zeigt eine schematische Darstellung einer möglichen Ausführungsform der erfindungsgemäßen Verpackungsmaschine. Eine Unterfolie 42 wird von einer Rolle abgerollt und zunächst mit einem Heizelement 1 erwärmt. Nachfolgend wird die Unterfolie in einer Formstation 43 tiefgezogen. Diese Formstation 43 weist ein Oberwerkzeug 44 und ein Unterwerkzeug 45, das auf einer Auflage 46 angeordnet ist, auf. Wie durch den Doppelpfeil dargestellt, ist die Auflage 46 und damit das Unterwerkzeug 45 vertikal verschiebbar. Sobald die Verpackungsmulden 3 in die Unterfolienbahn 42 eingeformt sind, werden sie mit dem Verpackungsgut 54 befüllt. Anschließend bevor die Verpackungsmulden in die Siegelstation 48 gelangen, werden mittels einer Stanze 56 Löcher in die Unterfolie gestanzt, die für den Gasaustausch in der Verpackung innerhalb der Siegelstation benötigt werden. In der Siegelstation 48 wird eine Oberfolie 55 auf die Unterfolie 42 gesiegelt und somit die Verpackungen geschlossen. In dem vorliegenden Fall wird auch die Oberfolie mittels eines Heizelementes 1 aufgewärmt und sodann mittels des Tiefziehwerkzeuges 44 tiefgezogen. Diese Tiefziehung kann dazu dienen, einen gewölbten Deckel für die Verpackungen zur Verfügung zu stellen. Die Tiefziehung kann jedoch auch dazu dienen die Oberfolie schrumpffähig zu machen. Auch die Siegelstation weist ein Oberwerkzeug 49 und ein Unterwerkzeug 50 auf, die beim Siegeln gegeneinander gepresst werden. In dem Oberwerkzeug 49 befindet sich ein Siegelrahmen, der ebenfalls mittels eines Heizelementes beheizt wird. Die nunmehr geschlossenen Verpackungen werden abschließend in einer Schneidstation 51 vereinzelt. Die Querschneidung der Schneidstation weist ebenfalls ein Oberwerkzeug 52 und ein Unterwerkzeug 53 auf, wobei das Unterwerkzeug 53 wiederum vertikal verschiebbar ist. 1 shows a schematic representation of a possible embodiment of the packaging machine according to the invention. A bottom foil 42 is unrolled from a roll and initially with a heating element 1 heated. Subsequently, the lower film is in a forming station 43 deep-drawn. This form station 43 has an upper tool 44 and a lower tool 45 that on a pad 46 is arranged on. As shown by the double arrow, the pad is 46 and thus the lower tool 45 vertically movable. Once the packaging trays 3 in the Unterfolienbahn 42 they are molded with the packaged goods 54 filled. Then before the packaging trays in the sealing station 48 arrive are by means of a punch 56 Holes punched in the bottom foil, which are needed for the gas exchange in the packaging within the sealing station. In the sealing station 48 becomes a top film 55 on the bottom foil 42 sealed and thus the packaging closed. In the present case, the upper film by means of a heating element 1 warmed up and then by means of the thermoforming tool 44 deep-drawn. This deep drawing can serve to provide a domed lid for the packages. However, the deep drawing can also serve to make the top film shrinkable. The sealing station also has an upper tool 49 and a lower tool 50 on, which are pressed against each other during sealing. In the upper tool 49 There is a sealing frame, which is also heated by means of a heating element. The now closed packages are finally in a cutting station 51 sporadically. The cross cutting of the cutting station also has an upper tool 52 and a lower tool 53 on, with the lower tool 53 in turn is vertically displaceable.

2 zeigt eine Ausführungsform des Mittels zur Einstellung des Abstandes A zwischen dem Oberwerkzeug 44 und dem Unterwerkzeug 45 im Schließzustand. Zwischen dem Oberwerkzeug 44 und dem Unterwerkzeug 45 befindet sich entweder nur die Unterfolie 42 oder die Unterfolie 42 und die Oberfolie 55. In dem Formwerkzeug wird der Abstand A zwischen dem Oberwerkzeug und dem Unterwerkzeug so eingestellt, dass die Unterfolienbahn 42 so gegen das Unterwerkzeug 45 gedrückt wird, dass keine oder nur geringfügige Undichtigkeiten zwischen der Unterfolienbahn 42 und dem Unterwerkzeug bestehen. Dadurch ist es möglich, mittels Unterdruck Verpackungsmulden in die Unterfolienbahn tief zu ziehen oder mittels Unterdruck das Tiefziehen von Verpackungsmulden in die Unterfolienbahn zu unterstützen. Beim Siegelwerkzeug muss der Spalt zwischen dem Oberwerkzeug 44 und dem Unterwerkzeug 45 so eingestellt werden, dass der für die Siegelung nötige Druck zwischen der Oberfolienbahn 55 und der Unterfolienbahn 42 zur Verfügung steht. In beiden Fällen erfolgt die Einstellung dieses Spaltes erfolgt die beiden Keile 2, die, wie durch die Doppelpfeile dargestellt, aufeinander zu bzw. voneinander weg bewegt werden können, durch eine Bewegung aufeinander zu wird das Unterwerkzeug relativ zu der Auflage 46 angehoben, während es beim Auseinanderziehen der beiden Keile 2 abgesenkt wird. Die beiden Keile 2 weisen vorzugsweise einen Antrieb, beispielsweise eine Spindel auf, wobei sich in dem einem Keil ein Rechts- und in dem anderem Keil ein Linksgewinde befindet. Durch Drehen der Spindel werden die Keile 2 gleichzeitig aufeinander zu bzw. voneinander weg bewegt. Dadurch wird eine Schrägstellung des Unterwerkzeuges 45 vermieden. Die Keile 2 können jedoch auch jeder einen eigenen Antrieb aufweisen. Diese Ausführungsform hat den Vorteil, dass Toleranzen bezüglich der Planheit der Unterseite von Werkzeug 45 mit den Keilen 2 ausgeglichen werden kann. Vorzugsweise erfolgt die Einstellung des Spaltes A automatisch mittels einer Steuerungseinheit der erfindungsgemäßen Verpackungsmaschine. Basierend auf der Höhe des Werkzeuges, der zu verarbeitenden Folie und/oder dem Druck, der bei der Siegelung erzeugt werden soll, stellt die Maschine automatisch den gewünschten Abstand zwischen dem Oberwerkzeug und dem Unterwerkzeug in der sogenannten Schließstellung ein. Diese Informationen können beispielsweise auf Transpondern oder sonstigen Informationsmedien, die von der erfindungsgemäßen Verpackungsmaschine auslesbar sind, automatisch erfasst und eingestellt werden. Des weiteren weist die erfindungsgemäße Verpackungsmaschine eine Kamera 9 auf, die den Spalt zwischen den beiden Werkzeugen erfasst. Aufgrund dieser Analyse wird gegebenenfalls der Abstand automatisch von der Steuerungseinheit der erfindungsgemäßen Verpackungsmaschine nachreguliert. 2 shows an embodiment of the means for adjusting the distance A between the upper tool 44 and the lower tool 45 in the closed state. Between the upper tool 44 and the lower tool 45 is either only the lower film 42 or the bottom foil 42 and the top film 55 , In the mold, the distance A between the upper tool and the lower tool is adjusted so that the lower film web 42 so against the lower tool 45 is pressed that no or only minor leaks between the sub-web 42 and the lower tool. This makes it possible to draw by means of vacuum packaging trays in the lower film web deep or under vacuum to support the deep drawing of packaging trays in the lower film web. When sealing tool, the gap between the upper tool 44 and the lower tool 45 be adjusted so that the pressure necessary for the sealing between the top film web 55 and the sub-train 42 is available. In both cases, the adjustment of this gap takes place, the two wedges 2 which, as shown by the double arrows, to each other or from each other can be moved, by moving towards each other, the lower tool relative to the support 46 raised while pulling apart the two wedges 2 is lowered. The two wedges 2 preferably have a drive, such as a spindle, wherein in one wedge a right and in the other wedge is a left-hand thread. Turning the spindle turns the wedges 2 simultaneously moved towards and away from each other. As a result, an inclination of the lower tool 45 avoided. The wedges 2 However, everyone can have their own drive. This embodiment has the advantage that tolerances with respect to the flatness of the bottom of the tool 45 with the wedges 2 can be compensated. The adjustment of the gap A is preferably carried out automatically by means of a control unit of the packaging machine according to the invention. Based on the height of the tool, the film to be processed and / or the pressure to be generated during the seal, the machine automatically sets the desired distance between the upper tool and the lower tool in the so-called closed position. This information can be automatically detected and set, for example, on transponders or other information media that can be read by the packaging machine according to the invention. Furthermore, the packaging machine according to the invention has a camera 9 on, which captures the gap between the two tools. On the basis of this analysis, if appropriate, the distance is automatically readjusted by the control unit of the packaging machine according to the invention.

11
Heizelementheating element
22
FoliendickenausgleichsmittelFilm thickness compensation means
33
Verpackungsmuldepackaging tray
44
Verpackungsmaschinepackaging machine
55
Sensorsensor
4242
UnterfolienbahnUnder sheet
4343
Formstationforming station
4444
Oberwerkzeug der Formstationupper tool the forming station
4545
Unterwerkzeug der Formstationlower tool the forming station
4646
Auflage des Unterwerkzeuges der Formstationedition of the lower tool of the molding station
4848
Siegelstationsealing station
4949
Oberwerkzeug der Siegelstationupper tool the sealing station
5050
Unterwerkzeug der Siegelstationlower tool the sealing station
5151
Schneidstationcutting station
5252
Oberwerkzeug der Schneidstationupper tool the cutting station
5353
Unterwerkzeug der Schneidstationlower tool the cutting station
5454
Verpackungsgutpackaged goods
5555
Oberfolietop film
5656
Stanzenpunch
AA
Abstand zwischen dem Ober- und dem Unterwerkzeugdistance between the upper and the lower tool

Claims (8)

Verpackungsmaschine (4), auf der Folienbahnen (42, 55) mit unterschiedlicher Dicke verarbeitbar sind, mit einer Form- und/oder Tiefziehstation, die ein Unterwerkzeug (45, 50, 53) und ein Oberwerkzeug (44, 49, 52) aufweisen, die aufeinander zu- und voneinander wegbewegbar sind, dadurch gekennzeichnet, dass sie ein Mittel (2) aufweist, mit dem der Abstand (A) zwischen dem Oberwerkzeug (44, 49, 52) und dem Unterwerkzeug (45, 50, 53) an die jeweilige Foliendicke anpassbar ist.Packaging machine ( 4 ), on the film webs ( 42 . 55 ) can be processed with different thickness, with a forming and / or thermoforming station, which is a lower tool ( 45 . 50 . 53 ) and an upper tool ( 44 . 49 . 52 ) movable towards and away from each other, characterized in that they comprise a means ( 2 ), with which the distance (A) between the upper tool ( 44 . 49 . 52 ) and the lower tool ( 45 . 50 . 53 ) is adaptable to the respective film thickness. Verpackungsmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Anpassung automatisch erfolgt.Packaging machine according to claim 1, characterized that the adjustment takes place automatically. Verpackungsmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Sensor (5) aufweist, der die Foliendicke und/oder den Spalt (A) ermittelt.Packaging machine according to one of the preceding claims, characterized in that it comprises a sensor ( 5 ), which determines the film thickness and / or the gap (A). Verpackungsmaschine nach Anspruch 3, dadurch gekennzeichnet, dass aufgrund eines Signals des Sensors (5) die Einstellung des Spaltes (A) automatisch erfolgt.Packaging machine according to claim 3, characterized in that due to a signal of the sensor ( 5 ), the adjustment of the gap (A) takes place automatically. Verpackungsmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Mittel (2) einen Antrieb aufweist.Packaging machine according to one of the preceding claims, characterized in that the means ( 2 ) has a drive. Verpackungsmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Mittel (2) zwei oder mehr Elemente aufweist.Packaging machine according to one of the preceding claims, characterized in that the means ( 2 ) has two or more elements. Verpackungsmaschine nach Anspruch 6, dadurch gekennzeichnet, dass der Antrieb die Elemente gleich- oder gegensinnig antreibt.Packaging machine according to claim 6, characterized that the drive drives the elements in the same direction or in opposite directions. Verpackungsmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Mittel (2) eine schiefe Ebene aufweist.Packaging machine according to one of the preceding claims, characterized in that the means ( 2 ) has an inclined plane.
DE102006050417A 2006-10-20 2006-10-20 Packaging machine with a film thickness compensation Withdrawn DE102006050417A1 (en)

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PCT/EP2007/007671 WO2008046471A1 (en) 2006-10-20 2007-09-03 Film thickness-adjusted packaging machine

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