EP3009355A1 - Method for manufacturing a packaging - Google Patents

Method for manufacturing a packaging Download PDF

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Publication number
EP3009355A1
EP3009355A1 EP14189024.4A EP14189024A EP3009355A1 EP 3009355 A1 EP3009355 A1 EP 3009355A1 EP 14189024 A EP14189024 A EP 14189024A EP 3009355 A1 EP3009355 A1 EP 3009355A1
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EP
European Patent Office
Prior art keywords
temperature
paper
packaging machine
forming station
thermoforming packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14189024.4A
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German (de)
French (fr)
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EP3009355B1 (en
Inventor
Urs Wiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Multivac Sepp Haggenmueller GmbH and Co KG
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Multivac Sepp Haggenmueller GmbH and Co KG
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Publication date
Application filed by Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Priority to ES14189024.4T priority Critical patent/ES2627343T3/en
Priority to EP14189024.4A priority patent/EP3009355B1/en
Publication of EP3009355A1 publication Critical patent/EP3009355A1/en
Application granted granted Critical
Publication of EP3009355B1 publication Critical patent/EP3009355B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/02—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved with means for heating the material prior to forming
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/08—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/08—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure
    • B65B47/10—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure by vacuum
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices

Definitions

  • the invention relates to a method for producing a packaging comprising a paper-plastic composite film, having the features of claim 1 and to a thermoforming packaging machine having the features of claim 6.
  • thermoforming packaging machines are known under the brand name PaperLite ®, which can have a paper content of over 80%.
  • the film is heated by means of a heater before or in the forming station, for example, 60 ° C to 90 ° C and then formed under vacuum and / or compressed air into a mold lower part.
  • thermoforming packaging machines are usually in rooms with a room temperature of 2 ° C to 10 ° C. The thermoforming process is problematic.
  • the object of the present invention is to provide a method and a thermoforming packaging machine for producing a package from a film which has at least 80% paper, which ensure trouble-free processing.
  • room temperature room temperature
  • control of the thermoforming packaging machine evaluates a first sensor to detect the temperature of the mold bottom.
  • the temperature of the mold lower part can be regulated, for example by means of a tempering device.
  • the temperature difference during the molding process can be influenced.
  • the controller of the thermoforming packaging machine evaluates at least one second sensor to detect the temperature of the water provided for the flow.
  • the tempering device may include a hot water pump and a heater to heat the mold bottom by means of flow of heated water to the desired temperature.
  • both the flow rate and the temperature increase can be used by the temperature control as a control variable for the control.
  • the tempering device can also be realized by means of a present in the thermoforming packaging cooling circuit of forming and / or sealing tool tops, wherein the heated at the end of the cooling circuit water has a temperature sufficient to the mold lower part by means of flow of the heated water to a desired temperature heat.
  • the manipulated variable is above all the flow rate.
  • the paper-plastic composite film has a thickness of at least 200 ⁇ m, preferably of at least 300 ⁇ m, in order to be able to produce attractive and dimensionally stable packages.
  • the paper-plastic composite film has a weight fraction of at least 80%, preferably at least 90%, of renewable raw materials, preferably paper, to provide improved reusable or compostable packaging.
  • thermoforming packaging machine with a forming station comprising a mold lower part, wherein the forming station, in particular the mold lower part, is associated with a tempering device in terms of function or connection, is characterized in that the mold lower part by means of the tempering to a temperature of 30 ° to 50 ° C. is heated to prevent water residue formation, for example by condensation of moisture contained in the paper portion of the film.
  • a control of the thermoforming packaging machine is configured to control the temperature of the mold base by means of the tempering device.
  • the mold lower part preferably has a temperature sensor in order to provide the controller with the current temperature of the mold lower part for the control.
  • the tempering device has at least one fluid pump, in particular a water pump, and a heater for heating the fluid to the temperature of 30 ° to 50 ° C. desired for tempering the mold lower part.
  • the single FIGURE shows a schematic view of a thermoforming packaging machine 1 according to the invention.
  • the thermoforming packaging machine 1 has a forming station 2, a sealing station 3, a cross-cutting device 4 and a longitudinal cutting device 5, which are arranged in this order in a production direction R on a machine frame 6.
  • a feed roller 7 On the input side is located on the machine frame 6, a feed roller 7, from which a film web 8 is withdrawn.
  • a material reservoir 9 is provided, from which a cover film 10 is drawn off.
  • a discharge device 13 in the form of a conveyor belt is provided on the thermoforming packaging machine, with which finished, individualized packages 21 are removed.
  • the thermoforming packaging machine 1 has a feed device (not shown) which grips the film web 8 and transports it further per main working cycle in the production direction R.
  • the feed device can be designed, for example, by clamp chains arranged on both sides.
  • the forming station 2 is formed as a thermoforming station, are formed in the film web 8 by deep drawing troughs 14.
  • the forming station 2 can be designed such that in the direction perpendicular to the production direction R several troughs are formed side by side.
  • the forming station 2 has a lifting device 30 in order to position a mold lower part 31 upwards against a mold upper part 32 into a working position for the molding process.
  • an insertion path 15 is provided, in which the troughs 14 formed in the film web 8 are filled with products 16.
  • the sealing station 3 also has a lifting device 30 and a closable chamber 17, in which the atmosphere in the wells 14 before sealing, for example by Evacuation and / or gassing can be replaced with a replacement gas or with a gas mixture.
  • the cross-cutting device 4 also comprises a lifting device 30 and is designed as a punch which cuts through the film web 8 and the cover film 10 in a direction transverse to the production direction R between adjacent depressions 14.
  • the cross-cutting device 4 operates such that the film web 8 is not separated over the entire width, but at least in an edge region is not severed. This allows a controlled onward transport by the feed device, preferably two staple chains arranged on both sides of the film web.
  • the longitudinal cutting device 5 is formed in the illustrated embodiment as a knife assembly with a plurality of rotating circular blades, with which the film web 8 and the lid film 10 between adjacent wells 14 and the lateral edge of the film web 8 are severed, so that behind the longitudinal cutting device 5 individualized packages are present.
  • the thermoforming packaging machine 1 also has a controller 18. It has the task to control the processes running in the thermoforming packaging machine 1 processes and monitor. Among other things, it regulates the temperature of the mold bottom part 31.
  • a display device 19 with operating elements 20 serves to visualize or influence the process sequences in the packaging machine 1 for or by an operator.
  • the film web 8 namely a thermoformable paper-plastic composite film
  • the film web 8 is withdrawn from the feed roller 7 and transported by the feed device in the forming station 2.
  • troughs 14 are formed in the film web 8 by deep drawing.
  • the film web 8 is molded by means of vacuum in the lower mold part 31 and / or by compressed air through the upper mold part 32 into the lower mold part 31 after the film web 8 previously on a not shown heating plate H of the forming station 2 or an upstream preheating V to a temperature of at least 60 ° C was heated.
  • the troughs 14 are transported along with the surrounding area of the film web 8 in a main working cycle to the insertion path 15 in which they are filled with products 16.
  • the filled wells 14 are transported along with the surrounding area of the film web 8 in the main working cycle by the feed device in the sealing station 3.
  • the cover film 10 is transported on to the film web 8 with a feed operation of the film web 8 after a sealing operation.
  • the lidding film 10 is withdrawn from the material storage 9.
  • the sealing of the cover film 10 on the depressions 14 or the film web 8 produces sealed packages 21 which are separated in the following cuts 4 and 5 and transported out of the thermoforming packaging machine 1 by means of the removal device 13.
  • Fig. 1 also shows a tempering device 33, which is connected to the mold 31 to control by means of water, which is passed through the mold lower part 31, the temperature of the mold lower part 31, which is entered via the display device 19.
  • the control by means of the controller 18 utilizes a temperature of the mold lower part 31 measured via a first sensor 34.
  • a water pump 36 of the temperature control device 33 pumps the water in the form of a closed water circuit through the mold lower part 31.
  • a second sensor 35 detects a temperature of a heater 37 of the tempering device 33, wherein the temperature of the water is measured in or directly after the heater 37 and the controller 18 is provided for the control.
  • the tempering device 33 is supplied and optionally further supplied by means of the water pump 36 to the lower mold part 31.
  • the heated water is either supplied to a cooling device or only derived.
  • a control valve not shown in detail could regulate the flow rate and thereby influence the temperature of the mold lower part 31.

Abstract

Die Erfindung betrifft ein Verfahren zum Herstellen einer Verpackung (21), die eine PapierKunststoff-Verbundfolie (8) aufweist, wobei der Papieranteil wenigstens 80% beträgt, mittels einer Tiefziehverpackungsmaschine (1) mit einer Formstation (2), in der die Papier-Kunststoff-Verbundfolie (8) mittels Vakuum und/oder Druckluft tiefgezogen wird, wobei die Formstation (2) ein Formwerkzeugunterteil (31) umfasst. Dabei beträgt die Umgebungstemperatur 2°C bis 10°C, die Papier-Kunststoff-Verbundfolie (8) wird in der Formstation (2) vor dem Formvorgang auf eine Temperatur von 60°C bis 90°C erwärmt und das Formwerkzeugunterteil (31) wird auf 30°C bis 50°C erwärmt.The invention relates to a method for producing a packaging (21) comprising a paper plastic composite film (8), wherein the paper content is at least 80%, by means of a thermoforming packaging machine (1) with a forming station (2) in which the paper plastic Composite film (8) is deep-drawn by means of vacuum and / or compressed air, wherein the forming station (2) comprises a mold lower part (31). The ambient temperature is 2 ° C to 10 ° C, the paper-plastic composite film (8) is heated in the forming station (2) before the molding process to a temperature of 60 ° C to 90 ° C and the mold lower part (31) heated to 30 ° C to 50 ° C.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Herstellen einer Verpackung, die eine Papier-Kunststoff-Verbundfolie aufweist, mit den Merkmalen des Anspruchs 1 und auf eine Tiefziehverpackungsmaschine mit den Merkmalen des Anspruchs 6.The invention relates to a method for producing a packaging comprising a paper-plastic composite film, having the features of claim 1 and to a thermoforming packaging machine having the features of claim 6.

Es sind Folien unter dem Markennamen PaperLite ® bekannt, die einen Papieranteil von über 80% aufweisen können. Um beim Einsatz auf Tiefziehverpackungsmaschinen Mulden in eine solche Folie tiefziehen zu können, wird die Folie mittels einer Heizung vor oder in der Formstation auf beispielsweise 60°C bis 90°C erwärmt und anschließend unter Vakuum und/oder Druckluft in ein Formwerkzeugunterteil geformt. Im Bereich der Lebensmittelverarbeitung und - verpackung stehen solche Tiefziehverpackungsmaschinen üblicherweise in Räumen mit einer Raumtemperatur von 2°C bis 10°C. Der Tiefziehprozess ist dabei problembehaftet.Films are known under the brand name PaperLite ®, which can have a paper content of over 80%. To be able to deep draw wells in such a film when used on thermoforming packaging machines, the film is heated by means of a heater before or in the forming station, for example, 60 ° C to 90 ° C and then formed under vacuum and / or compressed air into a mold lower part. In the area of food processing and packaging, such thermoforming packaging machines are usually in rooms with a room temperature of 2 ° C to 10 ° C. The thermoforming process is problematic.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Tiefziehverpackungsmaschine zum Herstellen einer Verpackung aus einer Folie, die wenigstens 80% Papier aufweist, bereitzustellen, die eine problemlose Verarbeitung gewährleisten.The object of the present invention is to provide a method and a thermoforming packaging machine for producing a package from a film which has at least 80% paper, which ensure trouble-free processing.

Diese Aufgabe wird gelöst durch ein Verfahren zum Herstellen einer Verpackung mit den Merkmalen des Anspruchs 1 bzw. durch eine Tiefziehverpackungsmaschine mit den Merkmalen des Anspruchs 6. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a method for producing a package having the features of claim 1 or by a thermoforming packaging machine having the features of claim 6. Advantageous developments of the invention are specified in the subclaims.

Das erfindungsgemäße Verfahren zum Herstellen einer Verpackung, die eine Papier-Kunststoff-Verbundfolie aufweist, wobei der Papieranteil der Papier-Kunststoff-Verbundfolie wenigstens 80% (Gewichtsanteil) beträgt, mittels einer Tiefziehverpackungsmaschine mit einer Formstation, in der die Papier-Kunststoff-Verbundfolie mittels Vakuum und/oder Druckluft tiefgezogen wird, wobei die Formstation ein Formwerkzeugunterteil umfasst, zeichnet sich dadurch aus, dass die Umgebungstemperatur (Raumtemperatur) an der Maschine, speziell an der Formstation, 2°C bis 10°C beträgt, die Papier-Kunststoff-Verbundfolie in der Formstation vor dem Formvorgang auf eine Temperatur von 60°C bis 90°C erwärmt wird und das Formwerkzeugunterteil aktiv, d.h. nicht erst durch den Kontakt mit der erwärmten Verbundfolie, sondern bereits vor diesem Kontakt auf 30°C bis 50°C erwärmt wird. Dies bringt den Vorteil mit sich, dass die Temperaturdifferenz zwischen der erwärmten Folie und dem Formwerkzeugunterteil, in das die Folie hineingeformt wird, ausreichend gering ist, sodass eine Kondensatbildung durch eine im Papier enthaltende Feuchtigkeit vermieden wird und Folgeerscheinungen wie Wasserrückstände im Formwerkzeugunterteil nicht zu nachfolgenden Problemen wie Schäden in einer am Formwerkzeug angeschlossenen Vakuumpumpe führen. Somit kann eine problemlose Verarbeitung gewährleistet werden.The inventive method for producing a package comprising a paper-plastic composite film, wherein the paper content of the paper-plastic composite film is at least 80% (by weight), by means of a thermoforming packaging machine with a forming station in which the paper-plastic composite film Vacuum and / or compressed air is deep drawn, wherein the forming station comprises a mold lower part is characterized in that the ambient temperature (room temperature) on the machine, especially at the forming station, 2 ° C to 10 ° C, the paper-plastic composite film is heated in the forming station before molding to a temperature of 60 ° C to 90 ° C and the mold lower part active, that is heated not only by the contact with the heated composite film, but even before this contact to 30 ° C to 50 ° C. , This has the advantage that the temperature difference between the heated film and the mold base, in which the film is formed, is sufficiently low, so that condensation is prevented by containing moisture in the paper and sequelae such as water residues in the mold base not to subsequent problems like damage in one of the mold lead connected vacuum pump. Thus, a trouble-free processing can be ensured.

Vorzugsweise wertet eine Steuerung der Tiefziehverpackungsmaschine einen ersten Sensor aus, um die Temperatur des Formwerkzeugunterteils zu erfassen. So kann die Temperatur des Formwerkzeugunterteils geregelt werden, beispielsweise mittels einer Temperierungsvorrichtung. Dabei kann auf die Temperaturdifferenz während des Formprozesses Einfluss genommen werden.Preferably, control of the thermoforming packaging machine evaluates a first sensor to detect the temperature of the mold bottom. Thus, the temperature of the mold lower part can be regulated, for example by means of a tempering device. In this case, the temperature difference during the molding process can be influenced.

Bevorzugt wertet die Steuerung der Tiefziehverpackungsmaschine wenigstens einen zweiten Sensor aus, um die Temperatur des Wassers, das für den Durchfluss vorgesehen ist, zu erfassen. Die Temperierungsvorrichtung kann eine Warmwasserpumpe und eine Heizung umfassen, um das Formwerkzeugunterteil mittels Durchfluss von erwärmtem Wasser auf die gewünschte Temperatur zu erwärmen. Damit kann sowohl die Durchflussmenge als auch die Temperaturerhöhung durch die Temperierungsvorrichtung als Stellgröße für die Regelung herangezogen werden.Preferably, the controller of the thermoforming packaging machine evaluates at least one second sensor to detect the temperature of the water provided for the flow. The tempering device may include a hot water pump and a heater to heat the mold bottom by means of flow of heated water to the desired temperature. Thus, both the flow rate and the temperature increase can be used by the temperature control as a control variable for the control.

Die Temperierungsvorrichtung kann aber auch mittels eines in der Tiefziehverpackungsmaschine vorhandenen Kühlkreislaufs von Form- und/oder Siegelwerkzeugoberteilen realisiert werden, wobei das am Ende des Kühlkreislaufs erwärmte Wasser eine Temperatur aufweist, die ausreicht, um das Formwerkzeugunterteil mittels Durchfluss des erwärmten Wassers auf eine gewünschte Temperatur zu erwärmen. Hier ist die Stellgröße vor allem die Durchflussmenge.The tempering device can also be realized by means of a present in the thermoforming packaging cooling circuit of forming and / or sealing tool tops, wherein the heated at the end of the cooling circuit water has a temperature sufficient to the mold lower part by means of flow of the heated water to a desired temperature heat. Here, the manipulated variable is above all the flow rate.

In einer besonders vorteilhaften Ausführung weist die Papier-Kunststoff-Verbundfolie eine Stärke von wenigstens 200µm, vorzugsweise von wenigstens 300µm auf, um attraktive und formstabile Verpackungen herstellen zu können.In a particularly advantageous embodiment, the paper-plastic composite film has a thickness of at least 200 μm, preferably of at least 300 μm, in order to be able to produce attractive and dimensionally stable packages.

Vorzugsweise weist die Papier-Kunststoff-Verbundfolie einen Gewichtsanteil von wenigstens 80%, vorzugsweise wenigstens 90%, erneuerbare Rohstoffe, vorzugsweise Papier auf, um eine verbesserte wiederverwertbare oder kompostierbare Verpackung bereitzustellen.Preferably, the paper-plastic composite film has a weight fraction of at least 80%, preferably at least 90%, of renewable raw materials, preferably paper, to provide improved reusable or compostable packaging.

Die erfindungsgemäße Tiefziehverpackungsmaschine mit einer Formstation, die ein Formwerkzeugunterteil umfasst, wobei der Formstation, insbesondere dem Formwerkzeugunterteil, funktionell bzw. verbindungstechnisch eine Temperierungsvorrichtung zugeordnet ist, zeichnet sich dadurch aus, dass das Formwerkzeugunterteil mittels der Temperierungsvorrichtung auf eine Temperatur von 30° bis 50° C erwärmbar ist, um Wasserrückstandsbildung beispielsweise durch Kondensation von Feuchtigkeit, die im Papieranteil der Folie enthalten ist, zu verhindern. Vorzugsweise ist eine Steuerung der Tiefziehverpackungsmaschine dazu konfiguriert, mittels der Temperierungsvorrichtung die Temperatur des Formwerkzeugunterteils zu regeln.The thermoforming packaging machine according to the invention with a forming station comprising a mold lower part, wherein the forming station, in particular the mold lower part, is associated with a tempering device in terms of function or connection, is characterized in that the mold lower part by means of the tempering to a temperature of 30 ° to 50 ° C. is heated to prevent water residue formation, for example by condensation of moisture contained in the paper portion of the film. Preferably, a control of the thermoforming packaging machine is configured to control the temperature of the mold base by means of the tempering device.

Bevorzugt weist das Formwerkzeugunterteil einen Temperatursensor auf, um der Steuerung die aktuelle Temperatur des Formwerkzeugunterteils zur Regelung bereitzustellen.The mold lower part preferably has a temperature sensor in order to provide the controller with the current temperature of the mold lower part for the control.

Idealerweise weist die Temperierungsvorrichtung zumindest eine Fluidpumpe, insbesondere eine Wasserpumpe, sowie eine Heizung zum Erwärmen des Fluids auf die zur Temperierung des Formwerkzeugunterteils gewünschte Temperatur von 30° bis 50°C auf.Ideally, the tempering device has at least one fluid pump, in particular a water pump, and a heater for heating the fluid to the temperature of 30 ° to 50 ° C. desired for tempering the mold lower part.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert.In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing.

Die einzige Figur zeigt in schematischer Ansicht eine erfindungsgemäße Tiefziehverpackungsmaschine 1. Die Tiefziehverpackungsmaschine 1 weist eine Formstation 2, eine Siegelstation 3, eine Querschneideeinrichtung 4 und eine Längsschneideeinrichtung 5 auf, die in dieser Reihenfolge in einer Produktionsrichtung R an einem Maschinenrahmen 6 angeordnet sind. Eingangsseitig befindet sich an dem Maschinenrahmen 6 eine Zufuhrrolle 7, von der eine Folienbahn 8 abgezogen wird. Im Bereich der Siegelstation 3 ist ein Materialspeicher 9 vorgesehen, von dem eine Deckelfolie 10 abgezogen wird. Ausgangsseitig ist an der Tiefziehverpackungsmaschine eine Abfuhreinrichtung 13 in Form eines Transportbandes vorgesehen, mit der fertige, vereinzelte Verpackungen 21 abtransportiert werden. Ferner weist die Tiefziehverpackungsmaschine 1 eine nicht dargestellte Vorschubeinrichtung auf, die die Folienbahn 8 ergreift und diese pro Hauptarbeitstakt in der Produktionsrichtung R weitertransportiert. Die Vorschubeinrichtung kann zum Beispiel durch beidseitig angeordnete Klammerketten ausgeführt sein.The single FIGURE shows a schematic view of a thermoforming packaging machine 1 according to the invention. The thermoforming packaging machine 1 has a forming station 2, a sealing station 3, a cross-cutting device 4 and a longitudinal cutting device 5, which are arranged in this order in a production direction R on a machine frame 6. On the input side is located on the machine frame 6, a feed roller 7, from which a film web 8 is withdrawn. In the region of the sealing station 3, a material reservoir 9 is provided, from which a cover film 10 is drawn off. On the output side, a discharge device 13 in the form of a conveyor belt is provided on the thermoforming packaging machine, with which finished, individualized packages 21 are removed. Furthermore, the thermoforming packaging machine 1 has a feed device (not shown) which grips the film web 8 and transports it further per main working cycle in the production direction R. The feed device can be designed, for example, by clamp chains arranged on both sides.

In der dargestellten Ausführungsform ist die Formstation 2 als eine Tiefziehstation ausgebildet, bei der in die Folienbahn 8 durch Tiefziehen Mulden 14 geformt werden. Dabei kann die Formstation 2 derart ausgebildet sein, dass in der Richtung senkrecht zur Produktionsrichtung R mehrere Mulden nebeneinander gebildet werden. Die Formstation 2 weist eine Hubeinrichtung 30 auf, um ein Formwerkzeugunterteil 31 nach oben gegen ein Formwerkzeugoberteil 32 in eine Arbeitsposition für den Formprozess zu positionieren. In Produktionsrichtung R hinter der Formstation 2 ist eine Einlegestrecke 15 vorgesehen, in der die in der Folienbahn 8 geformten Mulden 14 mit Produkten 16 befüllt werden.In the illustrated embodiment, the forming station 2 is formed as a thermoforming station, are formed in the film web 8 by deep drawing troughs 14. In this case, the forming station 2 can be designed such that in the direction perpendicular to the production direction R several troughs are formed side by side. The forming station 2 has a lifting device 30 in order to position a mold lower part 31 upwards against a mold upper part 32 into a working position for the molding process. In the production direction R behind the forming station 2, an insertion path 15 is provided, in which the troughs 14 formed in the film web 8 are filled with products 16.

Die Siegelstation 3 verfügt ebenfalls über eine Hubeinrichtung 30 und über eine verschließbare Kammer 17, in der die Atmosphäre in den Mulden 14 vor dem Versiegeln zum Beispiel durch Evakuieren und/oder Begasen mit einem Austauschgas oder mit einem Gasgemisch ersetzt werden kann.The sealing station 3 also has a lifting device 30 and a closable chamber 17, in which the atmosphere in the wells 14 before sealing, for example by Evacuation and / or gassing can be replaced with a replacement gas or with a gas mixture.

Die Querschneideeinrichtung 4 umfasst auch eine Hubeinrichtung 30 und ist als Stanze ausgebildet, die die Folienbahn 8 und die Deckelfolie 10 in einer Richtung quer zur Produktionsrichtung R zwischen benachbarten Mulden 14 durchtrennt. Dabei arbeitet die Querschneideeinrichtung 4 derart, dass die Folienbahn 8 nicht über die gesamte Breite aufgetrennt wird, sondern zumindest in einem Randbereich nicht durchtrennt wird. Dies ermöglicht einen kontrollierten Weitertransport durch die Vorschubeinrichtung, vorzugsweise zweier beidseitig der Folienbahn angeordneten Klammerketten.The cross-cutting device 4 also comprises a lifting device 30 and is designed as a punch which cuts through the film web 8 and the cover film 10 in a direction transverse to the production direction R between adjacent depressions 14. In this case, the cross-cutting device 4 operates such that the film web 8 is not separated over the entire width, but at least in an edge region is not severed. This allows a controlled onward transport by the feed device, preferably two staple chains arranged on both sides of the film web.

Die Längsschneideeinrichtung 5 ist in der dargestellten Ausführungsform als eine Messeranordnung mit mehreren rotierenden Rundmessern ausgebildet, mit der die Folienbahn 8 und die Deckelfolie 10 zwischen benachbarten Mulden 14 und am seitlichen Rand der Folienbahn 8 durchtrennt werden, so dass hinter der Längsschneideeinrichtung 5 vereinzelte Verpackungen vorliegen.The longitudinal cutting device 5 is formed in the illustrated embodiment as a knife assembly with a plurality of rotating circular blades, with which the film web 8 and the lid film 10 between adjacent wells 14 and the lateral edge of the film web 8 are severed, so that behind the longitudinal cutting device 5 individualized packages are present.

Die Tiefziehverpackungsmaschine 1 verfügt ferner über eine Steuerung 18. Sie hat die Aufgabe, die in der Tiefziehverpackungsmaschine 1 ablaufenden Prozesse zu steuern und zu überwachen. Sie regelt unter anderem die Temperatur des Formwerkzeugunterteils 31. Eine Anzeigevorrichtung 19 mit Bedienelementen 20 dient zum Visualisieren bzw. Beeinflussen der Prozessabläufe in der Verpackungsmaschine 1 für bzw. durch einen Bediener.The thermoforming packaging machine 1 also has a controller 18. It has the task to control the processes running in the thermoforming packaging machine 1 processes and monitor. Among other things, it regulates the temperature of the mold bottom part 31. A display device 19 with operating elements 20 serves to visualize or influence the process sequences in the packaging machine 1 for or by an operator.

Die generelle Arbeitsweise der Verpackungsmaschine 1 wird im Folgenden kurz beschrieben.The general operation of the packaging machine 1 will be briefly described below.

Die Folienbahn 8, nämlich eine tiefziehbare Papier-Kunststoff-Verbundfolie, wird von der Zufuhrrolle 7 abgezogen und durch die Vorschubeinrichtung in die Formstation 2 transportiert. In der Formstation 2 werden durch Tiefziehen Mulden 14 in der Folienbahn 8 gebildet. Dabei wird die Folienbahn 8 mittels Vakuum im Formwerkzeugunterteil 31 und/oder durch Druckluft durch das Formwerkzeugoberteil 32 in das Formwerkzeugunterteil 31 hineingeformt, nachdem die Folienbahn 8 zuvor über eine nicht näher dargestellte Heizplatte H der Formstation 2 oder eine vorgeschaltete Vorheizstation V auf eine Temperatur von wenigstens 60°C erwärmt wurde. Die Mulden 14 werden zusammen mit dem umgebenden Bereich der Folienbahn 8 in einem Hauptarbeitstakt zu der Einlegestrecke 15 weitertransportiert, in der sie mit Produkten 16 befüllt werden.The film web 8, namely a thermoformable paper-plastic composite film, is withdrawn from the feed roller 7 and transported by the feed device in the forming station 2. In the forming station 2 troughs 14 are formed in the film web 8 by deep drawing. In this case, the film web 8 is molded by means of vacuum in the lower mold part 31 and / or by compressed air through the upper mold part 32 into the lower mold part 31 after the film web 8 previously on a not shown heating plate H of the forming station 2 or an upstream preheating V to a temperature of at least 60 ° C was heated. The troughs 14 are transported along with the surrounding area of the film web 8 in a main working cycle to the insertion path 15 in which they are filled with products 16.

Anschließend werden die befüllten Mulden 14 zusammen mit dem sie umgebenden Bereich der Folienbahn 8 in dem Hauptarbeitstakt durch die Vorschubeinrichtung in die Siegelstation 3 weitertransportiert. Die Deckelfolie 10 wird nach einem Ansiegelvorgang an die Folienbahn 8 mit der Vorschubbewegung der Folienbahn 8 weitertransportiert. Dabei wird die Deckelfolie 10 von dem Materialspeicher 9 abgezogen. Durch das Ansiegeln der Deckelfolie 10 auf die Mulden 14 bzw. die Folienbahn 8 entstehen verschlossene Verpackungen 21, die in den nachfolgenden Schneidungen 4 und 5 vereinzelt und mittels der Abfuhreinrichtung 13 aus der Tiefziehverpackungsmaschine 1 heraus transportiert werden.Subsequently, the filled wells 14 are transported along with the surrounding area of the film web 8 in the main working cycle by the feed device in the sealing station 3. The cover film 10 is transported on to the film web 8 with a feed operation of the film web 8 after a sealing operation. In this case, the lidding film 10 is withdrawn from the material storage 9. The sealing of the cover film 10 on the depressions 14 or the film web 8 produces sealed packages 21 which are separated in the following cuts 4 and 5 and transported out of the thermoforming packaging machine 1 by means of the removal device 13.

Fig. 1 zeigt auch eine Temperierungsvorrichtung 33, die mit dem Formwerkzeug 31 verbunden ist, um mittels Wasser, das durch das Formwerkzeugunterteil 31 hindurchgeführt wird, die Temperatur des Formwerkzeugunterteils 31 zu regeln, die über die Anzeigevorrichtung 19 eingebbar ist. Die Regelung mittels der Steuerung 18 nutzt eine über einen ersten Sensor 34 gemessene Temperatur des Formwerkzeugunterteils 31. Dabei pumpt eine Wasserpumpe 36 der Temperierungsvorrichtung 33 das Wasser in Form eines geschlossenen Wasserkreislaufes durch das Formwerkzeugunterteil 31. Fig. 1 also shows a tempering device 33, which is connected to the mold 31 to control by means of water, which is passed through the mold lower part 31, the temperature of the mold lower part 31, which is entered via the display device 19. The control by means of the controller 18 utilizes a temperature of the mold lower part 31 measured via a first sensor 34. In this case, a water pump 36 of the temperature control device 33 pumps the water in the form of a closed water circuit through the mold lower part 31.

Ein zweiter Sensor 35 erfasst eine Temperatur einer Heizung 37 der Temperierungsvorrichtung 33, wobei dabei die Temperatur des Wassers in oder direkt nach der Heizung 37 gemessen und der Steuerung 18 für die Regelung bereitgestellt wird.A second sensor 35 detects a temperature of a heater 37 of the tempering device 33, wherein the temperature of the water is measured in or directly after the heater 37 and the controller 18 is provided for the control.

In einer in der Fig. 1 zusätzlich dargestellten alternativen Ausführung der Temperierungsvorrichtung 33 wird das Kühlwasser, das durch das Formwerkzeugoberteil 32 geleitet wurde, der Temperierungsvorrichtung 33 zugeführt und optional mittels der Wasserpumpe 36 weiter dem Formwerkzeugunterteil 31 zugeführt. Hierbei wird das erwärmte Wasser entweder einer Kühleinrichtung zugeführt oder lediglich abgeleitet. Ein nicht näher dargestelltes Regelventil könnte die Durchflussmenge regeln und dadurch Einfluss auf die Temperatur des Formwerkzeugunterteils 31 nehmen.In one in the Fig. 1 Additionally illustrated alternative embodiment of the tempering 33, the cooling water, which was passed through the upper mold part 32, the tempering device 33 is supplied and optionally further supplied by means of the water pump 36 to the lower mold part 31. Here, the heated water is either supplied to a cooling device or only derived. A control valve not shown in detail could regulate the flow rate and thereby influence the temperature of the mold lower part 31.

Claims (9)

Verfahren zum Herstellen einer Verpackung (21), die eine Papier-Kunststoff-Verbundfolie (8) aufweist, deren Papieranteil am Gewicht der Verbundfolie (8) wenigstens 80% beträgt, mittels einer Tiefziehverpackungsmaschine (1) mit einer Formstation (2), in der die Papier-Kunststoff-Verbundfolie (8) mittels Vakuum und/oder Druckluft tiefgezogen wird, wobei die Formstation (2) ein Formwerkzeugunterteil (31) umfasst, dadurch gekennzeichnet, dass die Umgebungstemperatur an der Formstation (2) 2°C bis 10°C beträgt, die Papier-Kunststoff-Verbundfolie (8) in der Formstation (2) vor dem Formvorgang auf eine Temperatur von 60°C bis 90°C erwärmt wird und das Formwerkzeugunterteil (31) aktiv auf 30°C bis 50°C erwärmt wird.A method of producing a package (21) comprising a paper-plastic composite film (8) whose paper content is at least 80% by weight of the composite film (8) by means of a thermoforming packaging machine (1) having a forming station (2) in which the paper-plastic composite film (8) is deep-drawn by means of vacuum and / or compressed air, wherein the forming station (2) comprises a mold lower part (31), characterized in that the ambient temperature at the forming station (2) 2 ° C to 10 ° C. is, the paper-plastic composite film (8) in the forming station (2) before the molding process to a temperature of 60 ° C to 90 ° C is heated and the mold lower part (31) is heated actively to 30 ° C to 50 ° C. , Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass eine Steuerung (19) der Tiefziehverpackungsmaschine (1) einen ersten Sensor (34) auswertet, um die Temperatur des Formwerkzeugunterteils (31) zu erfassen.A method according to claim 1, characterized in that a controller (19) of the thermoforming packaging machine (1) evaluates a first sensor (34) to detect the temperature of the mold lower part (31). Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Steuerung (18) der Tiefziehverpackungsmaschine (1) wenigstens einen zweiten Sensor (35) auswertet, um die Temperatur des Wassers, das für den Durchfluss vorgesehen ist, zu erfassen.Method according to one of the preceding claims, characterized in that the controller (18) of the thermoforming packaging machine (1) evaluates at least one second sensor (35) to detect the temperature of the water provided for the flow. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Papier-Kunststoff-Verbundfolie (8) eine Stärke von wenigstens 200µm aufweist.Method according to one of the preceding claims, characterized in that the paper-plastic composite film (8) has a thickness of at least 200μm. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Papier-Kunststoff-Verbundfolie (8) einen Gewichtsanteil von wenigstens 80% an erneuerbaren Rohstoffen, vorzugsweise Papier, aufweist.Method according to one of the preceding claims, characterized in that the paper-plastic composite film (8) has a weight fraction of at least 80% of renewable raw materials, preferably paper. Tiefziehverpackungsmaschine (1) mit einer Formstation (2), die ein Formwerkzeugunterteil (31) umfasst, wobei der Formstation (2) eine Temperierungsvorrichtung (33) zugeordnet ist, dadurch gekennzeichnet, dass das Formwerkzeugunterteil (31) mittels der Temperierungsvorrichtung (33) auf eine Temperatur von 30° bis 50° C erwärmbar ist.Thermoforming packaging machine (1) with a forming station (2) comprising a mold base (31), wherein the forming station (2) is associated with a tempering device (33), characterized in that the mold lower part (31) by means of the tempering device (33) on a Temperature of 30 ° to 50 ° C is heated. Tiefziehverpackungsmaschine nach Anspruch 6, dadurch gekennzeichnet, dass eine Steuerung (18) der Tiefziehverpackungsmaschine (1) dazu konfiguriert ist, mittels der Temperierungsvorrichtung (33) die Temperatur des Formwerkzeugunterteils (31) zu regeln.Thermoforming packaging machine according to claim 6, characterized in that a controller (18) of the thermoforming packaging machine (1) is configured to control by means of the tempering device (33), the temperature of the mold lower part (31). Tiefziehverpackungsmaschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass das Formwerkzeugunterteil (31) einen Temperatursensor (34) aufweist.Thermoforming packaging machine according to claim 6 or 7, characterized in that the mold lower part (31) has a temperature sensor (34). Tiefziehverpackungsmaschine nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Temperierungsvorrichtung (33) eine Wasserpumpe (36) und eine Heizung (37) aufweist.Thermoforming packaging machine according to one of claims 6 to 8, characterized in that the tempering device (33) has a water pump (36) and a heater (37).
EP14189024.4A 2014-10-15 2014-10-15 Method for manufacturing a packaging Active EP3009355B1 (en)

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ES14189024.4T ES2627343T3 (en) 2014-10-15 2014-10-15 Procedure to manufacture a container
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GB2557619A (en) * 2016-12-12 2018-06-27 Rapid Action Packaging Ltd A method of making a pack for food and the associated pack
EP3456641A1 (en) * 2017-09-15 2019-03-20 MULTIVAC Sepp Haggenmüller SE & Co. KG Deep draw packaging machine and method for forming a film web in carton elements

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EP2036817A1 (en) * 2007-09-12 2009-03-18 CFS Kempten GmbH Packaging of pet food
EP2070687A1 (en) * 2007-12-11 2009-06-17 Multivac Sepp Haggenmüller GmbH & Co. KG Packaging machine with induction heating
US20090173049A1 (en) * 2006-05-05 2009-07-09 Multivac Sepp Haggenmueller Gmbh & Co. Kg Packing Machine, in Particular Encompassing a Deep Drawing Machine

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Publication number Priority date Publication date Assignee Title
WO2002012066A1 (en) * 2000-08-04 2002-02-14 Infineon Technologies Ag Device and method for the placement of components on transport belts
US20090173049A1 (en) * 2006-05-05 2009-07-09 Multivac Sepp Haggenmueller Gmbh & Co. Kg Packing Machine, in Particular Encompassing a Deep Drawing Machine
EP2036817A1 (en) * 2007-09-12 2009-03-18 CFS Kempten GmbH Packaging of pet food
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2557619A (en) * 2016-12-12 2018-06-27 Rapid Action Packaging Ltd A method of making a pack for food and the associated pack
EP3456641A1 (en) * 2017-09-15 2019-03-20 MULTIVAC Sepp Haggenmüller SE & Co. KG Deep draw packaging machine and method for forming a film web in carton elements
EP3456641B1 (en) 2017-09-15 2020-03-11 MULTIVAC Sepp Haggenmüller SE & Co. KG Deep draw packaging machine and method for forming a film web in carton elements
US11027478B2 (en) 2017-09-15 2021-06-08 Multivac Sepp Haggenmueller Se & Co. Kg Thermoform packaging machine and method of forming-in a film web into cardboard elements

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