EP2444324A1 - Deep draw packaging machine and method for stretching a sheet of film - Google Patents

Deep draw packaging machine and method for stretching a sheet of film Download PDF

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Publication number
EP2444324A1
EP2444324A1 EP11008381A EP11008381A EP2444324A1 EP 2444324 A1 EP2444324 A1 EP 2444324A1 EP 11008381 A EP11008381 A EP 11008381A EP 11008381 A EP11008381 A EP 11008381A EP 2444324 A1 EP2444324 A1 EP 2444324A1
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EP
European Patent Office
Prior art keywords
film
stretching
film web
packaging machine
cooling device
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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
EP11008381A
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German (de)
French (fr)
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EP2444324B1 (en
Inventor
Bernhard Grimm
Annett Grott
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 of EP2444324A1 publication Critical patent/EP2444324A1/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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs

Definitions

  • the invention relates to a thermoforming packaging machine for stretching a film web according to claim 1, as well as to a method according to claim 9.
  • thermoforming packaging machine with a stretching device for stretching a lid film known to position the printed lidding film very accurately on a packaging tray.
  • a photocell determined by means of a print mark on the lid film, the position of the printed image with respect to the feed and thus to the packaging tray.
  • the printed image usually has an undersize and is stretched by a clamping bar clamps the flexible lid foil just before the feed end and the remaining feed movement stretches the lidding foil.
  • the clamping bar can be moved counter to the feed direction to stretch the lidding film to the desired level.
  • the lid film under tension is sealed to a trough, which is designed so that it can counteract the voltages of the lid film, so that a visually appealing packaging can be obtained.
  • stretching devices are known in which the cover film is heated by a heating plate in the region in which the stretching takes place.
  • the stretching of this area of the film is made possible by the heat input.
  • a heat input is necessary to stretch the film in the elastic-plastic area can.
  • the high accelerations when starting the feed movement and the deflections on the pulleys up to a sealing station uncontrolled expansion behavior, especially with a longer distance of the cover sheet to the sealing station frequent post-corrections and large tolerances in the placement and the size of the printed image compared to the packaging tray leads.
  • the reason for this is also an uncontrolled shrinkage of the film web due to the different temperature ranges in the cover film.
  • the stretched length of the heated film area leads after cooling to the sealing station only to an elongation of less than one percent of the printed image. This requires a tight tolerance of the length and position of the printed image by the film supplier.
  • the object of the invention is to provide a thermoforming packaging machine and a method for stretching a film web, in which the disadvantages described above can be eliminated.
  • thermoforming packaging machine for stretching a film web according to claim 1 and a method for operating a thermoforming packaging machine according to claim 9.
  • Advantageous developments of the invention are specified in the subclaims.
  • thermoforming packaging machine comprises a stretching station for stretching a film web with a heating device, a printing mark sensor, a clamping device, wherein the stretching station has a film cooling device.
  • the film cooling device causes the film web is cooled quickly after stretching and it comes with the following feeds to a sealing station to no uncontrolled changes in the film web and thus a printed image. This can now be placed very precisely on the packaging tray and sealed airtight on the packaging tray.
  • the film cooling device has a cooling plate.
  • the cooling plate is a simple but efficient solution to dissipate at least from the heated region of the film web the introduced during or after stretching by the heater heat again.
  • the film cooling device is mounted on a different side of the film web than the heating device in order to provide a particularly compact design.
  • the stretching station has a lifting mechanism for moving the film cooling device to and from the film web.
  • the film cooling device can be made permanently cooled and it comes only to cool with the film web in contact.
  • the movement of the film cooling device and the heater relative to the film web is carried out together by a hoist.
  • the heater moves away from the film web, while at the same time the film cooling device moves towards the film web and vice versa. This allows a space-saving and cost-effective solution, since only one actuator for the movements of the film cooling device and the heater is provided.
  • the film cooling device is mounted in a preferred embodiment above the sealing station, for example, is used as a mounting surface existing in this area cabinet of thermoforming packaging machine.
  • the stretching station comprises at least one clamping bar, which is pivotable in order to stretch the film web.
  • the clamping bar comprises a servo drive which is connected to the controller and performs a very exact stretching of the film web.
  • a linear movement of the clamping bar is conceivable.
  • An inventive method for stretching a film web on a thermoforming machine by means of a stretching station with a heater provides that the stretching station actively cools the film web after heating and stretching the film web. This leads to a print image that remains unchanged despite accelerations of the following feed movements up to a sealing station and can be exactly placed on a package and sealed.
  • a film cooling device in particular a cooling plate, cools the film web to quickly dissipate the heat introduced into the film by the heater and thus maintain high performance of the thermoforming packaging machine.
  • the film web is cooled until it is heat-set in order to obtain the film web unchanged for the further feed movements.
  • the film web is preferably cooled by contact with the film cooling device in order to dissipate the heat efficiently and quickly.
  • a controller receives a signal from a print mark sensor and evaluates the signal along with the instructions in the controller entered by an operator, and controls the stretching of the film web or the size and position of the print image corresponding to the packaging tray.
  • the print mark represents the reference for the position of the printed image and serves to determine the stretching dimension of the printed image.
  • the stretching is preferably carried out by a clamping bar, which presses the film web to a deflection roller and then performs a radial movement about the deflection roller with the clamped part of the film web by means of a servo drive.
  • the servo drive is suitable to achieve the accuracy of the length to be stretched and also to apply the required force for this purpose.
  • FIG. 1 shows a schematic view of a thermoforming packaging machine 1.
  • This has a forming station 2, a sealing station 3, a cross-cutting device 4 and longitudinal cutting device 5, which are arranged in this order in a 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 lower film 8 is withdrawn.
  • a packing trough 9 is formed in the lower film 8.
  • a material reservoir 10 is provided, from which a film web 11 is drawn off. Before feeding the film web 11 into the sealing station 3, this passes through a stretching station 12.
  • a discharge device 13 in the form of a conveyor belt is provided on the packaging machine 1, with the finished individualized packages 14 being transported away. Furthermore, the packaging machine 1, a feed device, not shown, which engages the lower film 8 side and further transported in the main working cycle in cycles in the direction of R.
  • the feed device may e.g. be realized by laterally arranged transport chains.
  • a controller 17 for input of parameters by the operator and for visualization of operating conditions is attached to a control cabinet 18.
  • FIG. 2 shows a stretching station 12, which is mounted in the area above the sealing station 3 on the cabinet 18. From the material storage 10, the film web 11 is transported via deflection rollers 19 by the stretching device 12 in the sealing station 3. This is done by the advancing movement of the lower film 8, to which a front region of the film web 11 is already sealed, whereby the film web 11 is pulled along. Clamp bars 20 and 21 are shown, as well as a print mark sensor 22, a heater 23 and a cooler 24. A hoist 25 is shown for the co-movement of the heater 23 and the film cooler 24.
  • the process time is shown, in which the film web 11 is pulled along by the feed of the lower film 8 in the transport direction R.
  • the print mark sensor 22 detects a printed mark present on the film web 11. The signal from the print mark sensor 22 is sent to the controller 17, and the controller 17 determines the timing at which the clamp bars 20 and 21 close.
  • the clamping bars 20 and 21 clamp the film web 11 to the deflection rollers 19, as in FIG. 3 shown. This is preferably done at the end of the intermittent feed movement of the lower film 8.
  • the hoist 25 moves the heater 23, shown here as a hot plate, to the film web 11.
  • the stretching temperature is close to a glass transition temperature at which there is a significant change in the mechanical properties such as hardness and elasticity of the film web 11. Depending on the film composition, this temperature is between 60 ° C and 90 ° C, eg for APET, the glass transition temperature is about 74 ° C. Slides with a thickness of more than 200 microns have at temperatures below 30 ° C no stretching behavior.
  • the stretching of the film web 11 takes place; as in FIG. 4 shown by a radial movement of the clamping bar 21 about the guide roller 19 against the feed direction, and the clamped between the two clamping bars 20 and 21 area is stretched or elongated.
  • the movement of the clamping bar 21 is effected by a servo drive, not shown, which is controlled by the controller 17 and has the necessary force and positioning accuracy.
  • FIG. 5 shows the phase after stretching, in which the hoist 25, the heater 23 moves away from the film web 11 and the film cooling device 24 moves up to the film web 11 so that they come into contact to cool the film web 11 in this area to a temperature until the film web 11 is heat-set in the stretched state.
  • the area of the film cooling device 24 with respect to the heater 23 in the transport direction is greater, since the film web 11 is heated by the heater 23 also beyond this. This ensures that the stretched printed image of the film web 11 retains its dimensions until it is transported into the sealing station 3.
  • the heat-set length after stretching corresponds to approximately 25% to 30% of the elongation of the clamped film area during the stretching process.
  • 21 film webs 11 can be processed with greater tolerances in length and position of the printed image on the part of the film suppliers even with the same stretching path of the clamping bar. This leads to a cost savings in the procurement of the operator of the thermoforming packaging machine.
  • the clamping bars 20 and 21 After reaching the heat setting of the film web 11 (s. FIG. 6 ), the clamping bars 20 and 21 are opened, the clamping bar 21 is pivoted back to its original position and the hoist 25 moves the film cooling device 24 up and away from the film web 11 and the heater 23 in the direction of the positions for heating of the next film section. From the time of release of the film web 11 by the clamping bar 20, 21, the next feed and transport of the film web 11 in the direction of sealing station 3 can take place.
  • the film web 11 can be sealed without tension. This in turn allows the use of flexible sub-films 8.
  • holes which are introduced in a perforation station optionally arranged between the stretching station 12 and the sealing station 3 remain in their exact position, since there is no stretching of the film before or in the sealing station 3 comes.
  • the stretching station 12 With an optional top film forming station and / or an upper film clip chain guide, the stretching station 12 also provides the above advantages.
  • the heating device 23 and the film cooling device 24 have their own hoists in order to be able to be moved independently of the film web 11 and back.
  • the film can be attracted by vacuum to the heater 23 and / or cooling device 24 in order to obtain a uniform contact over the surface in question.
  • a flat contact of the film web 11 to the heater 23 and the film cooling device 24 may also be performed by a convex shape on the surface of the heating plate or cooling plate.
  • the servo drive can tighten the clamping bar 21 to the liberated film web length.
  • the film cooling device 24 can be permanently cooled by means of water cooling.
  • the clamping bar 20 may be pivotable as the clamping bar 21 and pivotally or linearly movable by a servo drive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

The thermoforming packaging machine (1) has a stretching station (12) for stretching a sheet (11) with a heating device, a printing mark sensor and a clamping device. The stretching station has a film cooling device with a cooling plate. The film cooling device lies on another side of the sheet than the heating device. An independent claim is also included for a method for stretching a sheet on a thermoforming machine.

Description

Die Erfindung bezieht sich auf eine Tiefziehverpackungsmaschine zum Recken einer Folienbahn gemäß Anspruch 1, sowie auf ein Verfahren nach Anspruch 9.The invention relates to a thermoforming packaging machine for stretching a film web according to claim 1, as well as to a method according to claim 9.

Aus der EP 1 620 317 B1 ist eine Tiefziehverpackungsmaschine mit einer Dehnvorrichtung zum Dehnen einer Deckelfolie bekannt, um die bedruckte Deckelfolie sehr exakt auf eine Verpackungsmulde zu positionieren. Dabei ermittelt eine Fotozelle mittels einer Druckmarke auf der Deckelfolie die Lage des Druckbildes gegenüber dem Vorschub und somit zu der Verpackungsmulde. Das Druckbild hat üblicherweise ein Untermaß und wird gedehnt, indem ein Klemmbalken die flexible Deckelfolie kurz vor Vorschubende klemmt und die verbleibende Vorschubbewegung die Deckelfolie dehnt. Zusätzlich kann der Klemmbalken entgegen der Vorschubrichtung verfahren werden, um die Deckelfolie auf das gewünschte Maß zu dehnen. Hierbei wird die unter Spannung stehende Deckelfolie an eine Mulde gesiegelt, die so ausgebildet ist, dass sie die den Spannungen der Deckelfolie entgegenwirken kann, damit eine optisch ansprechende Verpackung erhalten werden kann.From the EP 1 620 317 B1 is a thermoforming packaging machine with a stretching device for stretching a lid film known to position the printed lidding film very accurately on a packaging tray. In this case, a photocell determined by means of a print mark on the lid film, the position of the printed image with respect to the feed and thus to the packaging tray. The printed image usually has an undersize and is stretched by a clamping bar clamps the flexible lid foil just before the feed end and the remaining feed movement stretches the lidding foil. In addition, the clamping bar can be moved counter to the feed direction to stretch the lidding film to the desired level. Here, the lid film under tension is sealed to a trough, which is designed so that it can counteract the voltages of the lid film, so that a visually appealing packaging can be obtained.

Weiterhin sind Reckeinrichtungen bekannt, bei denen die Deckelfolie durch eine Heizplatte in dem Bereich erwärmt wird, in dem die Reckung stattfindet. Die Reckung dieses Bereiches der Folie wird durch den Wärmeeintrag ermöglicht. Vor allem bei stärkeren Folien, insbesondere Hartfolien mit einer Dicke von mehr als 200 µm, ist ein Wärmeeintrag notwendig, um die Folie im elastisch-plastischen Bereich recken zu können. Bei den folgenden Vorschubbewegungen der Deckelfolie ergibt sich durch die ungleiche Wärmeverteilung in der Deckelfolie, die hohen Beschleunigungen beim Anfahren der Vorschubbewegung und die Umlenkungen an den Umlenkrollen bis zu einer Siegelstation ein unkontrolliertes Dehnverhalten, das vor allem bei einer längeren Wegstrecke der Deckelfolie bis zur Siegelstation zu häufigen Nachkorrekturen und großen Toleranzen in der Platzierung und der Größe des Druckbildes gegenüber der Verpackungsmulde führt. Grund hierfür ist auch ein unkontrolliertes Schrumpfen der Folienbahn durch die unterschiedlichen Temperaturbereiche in der Deckelfolie.Furthermore, stretching devices are known in which the cover film is heated by a heating plate in the region in which the stretching takes place. The stretching of this area of the film is made possible by the heat input. Especially with thicker films, especially rigid films with a thickness of more than 200 microns, a heat input is necessary to stretch the film in the elastic-plastic area can. In the subsequent advancing movements of the lid film resulting from the uneven heat distribution in the lid film, the high accelerations when starting the feed movement and the deflections on the pulleys up to a sealing station uncontrolled expansion behavior, especially with a longer distance of the cover sheet to the sealing station frequent post-corrections and large tolerances in the placement and the size of the printed image compared to the packaging tray leads. The reason for this is also an uncontrolled shrinkage of the film web due to the different temperature ranges in the cover film.

Die gereckte Länge des erwärmten Folienbereichs führt nach dem Abkühlen bis zur Siegelstation nur zu einer Längung von weniger als einem Prozent des Druckbildes. Dies bedarf einer engen Toleranz der Länge und Lage des Druckbildes durch den Folienlieferanten.The stretched length of the heated film area leads after cooling to the sealing station only to an elongation of less than one percent of the printed image. This requires a tight tolerance of the length and position of the printed image by the film supplier.

Aufgabe der Erfindung ist es, eine Tiefziehverpackungsmaschine und ein Verfahren zum Recken einer Folienbahn zur Verfügung zu stellen, bei denen die vorstehend beschriebenen Nachteile beseitigt werden können.The object of the invention is to provide a thermoforming packaging machine and a method for stretching a film web, in which the disadvantages described above can be eliminated.

Diese Aufgabe wird gelöst durch eine Tiefziehverpackungsmaschine zum Recken einer Folienbahn gemäß Anspruch 1 und ein Verfahren zum Betrieb einer Tiefziehverpackungsmaschine nach Anspruch 9. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a thermoforming packaging machine for stretching a film web according to claim 1 and a method for operating a thermoforming packaging machine according to claim 9. Advantageous developments of the invention are specified in the subclaims.

Eine erfindungsgemäße Tiefziehverpackungsmaschine umfasst eine Reckstation zum Recken einer Folienbahn mit einer Heizeinrichtung, einem Druckmarkensensor, einer Klemmeinrichtung, wobei die Reckstation eine Folienkühlvorrichtung aufweist. Die Folienkühlvorrichtung bewirkt, dass die Folienbahn nach dem Recken schnell abgekühlt wird und es bei den folgenden Vorschüben bis zu einer Siegelstation zu keinen unkontrollierten Veränderungen der Folienbahn und somit eines Druckbildes kommt. Dieses kann nun sehr exakt auf der Verpackungsmulde platziert und auf die Verpackungsmulde luftdicht aufgesiegelt werden.A thermoforming packaging machine according to the invention comprises a stretching station for stretching a film web with a heating device, a printing mark sensor, a clamping device, wherein the stretching station has a film cooling device. The film cooling device causes the film web is cooled quickly after stretching and it comes with the following feeds to a sealing station to no uncontrolled changes in the film web and thus a printed image. This can now be placed very precisely on the packaging tray and sealed airtight on the packaging tray.

In einer vorteilhaften Ausführung weist die Folienkühlvorrichtung eine Kühlplatte auf. Die Kühlplatte stellt eine einfache aber effiziente Lösung dar, um wenigstens aus dem erwärmten Bereich der Folienbahn die während oder nach dem Recken durch die Heizeinrichtung eingebrachte Wärme wieder abzuführen.In an advantageous embodiment, the film cooling device has a cooling plate. The cooling plate is a simple but efficient solution to dissipate at least from the heated region of the film web the introduced during or after stretching by the heater heat again.

Vorzugsweise ist die Folienkühlvorrichtung auf einer anderen Seite der Folienbahn als die Heizeinrichtung angebracht, um eine besonders kompakte Bauform zur Verfügung zu stellen.Preferably, the film cooling device is mounted on a different side of the film web than the heating device in order to provide a particularly compact design.

In einer bevorzugten Ausführung weist die Reckstation ein Hubwerk zum Hin- und Wegbewegen der Folienkühlvorrichtung zur Folienbahn auf. Somit kann die Folienkühlvorrichtung dauergekühlt ausgeführt sein und sie kommt nur zum Kühlen mit der Folienbahn in Kontakt.In a preferred embodiment, the stretching station has a lifting mechanism for moving the film cooling device to and from the film web. Thus, the film cooling device can be made permanently cooled and it comes only to cool with the film web in contact.

Vorzugsweise wird die Bewegung der Folienkühlvorrichtung und der Heizeinrichtung gegenüber der Folienbahn gemeinsam durch ein Hubwerk ausgeführt. Dabei bewegt sich beispielsweise die Heizeinrichtung von der Folienbahn weg, während sich gleichzeitig die Folienkühlvorrichtung zur Folienbahn hinbewegt und umgekehrt. Dies ermöglicht eine platzsparende und kostengünstige Lösung, da nur ein Aktor für die Bewegungen der Folienkühlvorrichtung und der Heizeinrichtung vorgesehen ist.Preferably, the movement of the film cooling device and the heater relative to the film web is carried out together by a hoist. In this case, for example, the heater moves away from the film web, while at the same time the film cooling device moves towards the film web and vice versa. This allows a space-saving and cost-effective solution, since only one actuator for the movements of the film cooling device and the heater is provided.

Die Folienkühlvorrichtung ist in bevorzugter Ausführung oberhalb der Siegelstation angebracht, beispielsweise wird als Montagefläche ein in diesem Bereich vorhandener Schaltschrank der Tiefziehverpackungsmaschine genutzt.The film cooling device is mounted in a preferred embodiment above the sealing station, for example, is used as a mounting surface existing in this area cabinet of thermoforming packaging machine.

In einer bevorzugten Ausführung umfasst die Reckstation wenigstens einen Klemmbalken, der schwenkbar ist, um die Folienbahn zu recken. Idealerweise umfasst der Klemmbalken einen Servoantrieb, der mit der Steuerung verbunden ist und ein sehr exaktes Recken der Folienbahn ausführt. Alternativ ist auch eine lineare Bewegung des Klemmbalkens denkbar.In a preferred embodiment, the stretching station comprises at least one clamping bar, which is pivotable in order to stretch the film web. Ideally, the clamping bar comprises a servo drive which is connected to the controller and performs a very exact stretching of the film web. Alternatively, a linear movement of the clamping bar is conceivable.

Ein erfindungsgemäßes Verfahren zum Recken einer Folienbahn auf einer Tiefziehmaschine mittels einer Reckstation mit einer Heizeinrichtung sieht vor, dass die Reckstation die Folienbahn nach dem Aufheizen und Recken der Folienbahn aktiv kühlt. Dies führt zu einem Druckbild, das trotz Beschleunigungen der folgenden Vorschubbewegungen bis hin zu einer Siegelstation unverändert bleibt und exakt auf einer Verpackung platziert und gesiegelt werden kann.An inventive method for stretching a film web on a thermoforming machine by means of a stretching station with a heater provides that the stretching station actively cools the film web after heating and stretching the film web. This leads to a print image that remains unchanged despite accelerations of the following feed movements up to a sealing station and can be exactly placed on a package and sealed.

Vorzugsweise kühlt eine Folienkühlvorrichtung, insbesondere eine Kühlplatte, die Folienbahn, um die durch die Heizeinrichtung in die Folie eingebrachte Wärme schnell abzuleiten und somit eine hohe Leistung der Tiefziehverpackungsmaschine aufrecht zu erhalten.Preferably, a film cooling device, in particular a cooling plate, cools the film web to quickly dissipate the heat introduced into the film by the heater and thus maintain high performance of the thermoforming packaging machine.

Vorzugsweise wird die Folienbahn soweit gekühlt, bis diese thermofixiert ist, um die Folienbahn für die weiteren Vorschubbewegungen unverändert zu erhalten.Preferably, the film web is cooled until it is heat-set in order to obtain the film web unchanged for the further feed movements.

Dabei wird die Folienbahn in bevorzugter Weise über Kontakt mit der Folienkühlvorrichtung gekühlt, um die Wärme effizient und schnell abzuführen.In this case, the film web is preferably cooled by contact with the film cooling device in order to dissipate the heat efficiently and quickly.

In einer bevorzugten Form nimmt eine Steuerung ein Signal eines Druckmarkensensors auf und wertet das Signal zusammen mit den Vorgaben in der Steuerung, die durch einen Bediener eingegeben wurden, aus und steuert das Recken der Folienbahn bzw. die Größe und Lage das Druckbild entsprechend der Verpackungsmulde. Die Druckmarke stellt die Referenz für die Lage des Druckbildes dar und sie dient zur Ermittlung des Reckmaßes des Druckbildes.In a preferred form, a controller receives a signal from a print mark sensor and evaluates the signal along with the instructions in the controller entered by an operator, and controls the stretching of the film web or the size and position of the print image corresponding to the packaging tray. The print mark represents the reference for the position of the printed image and serves to determine the stretching dimension of the printed image.

Das Recken erfolgt vorzugsweise durch einen Klemmbalken, der die Folienbahn an eine Umlenkrolle presst und dann eine radiale Bewegung um die Umlenkrolle mit dem geklemmten Teil der Folienbahn mittels eines Servoantriebs ausführt. Der Servoantrieb ist geeignet, um die Genauigkeit der zu reckenden Länge zu erreichen und auch die benötigte Kraft hierfür aufzubringen.The stretching is preferably carried out by a clamping bar, which presses the film web to a deflection roller and then performs a radial movement about the deflection roller with the clamped part of the film web by means of a servo drive. The servo drive is suitable to achieve the accuracy of the length to be stretched and also to apply the required force for this purpose.

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

Figur 1
eine Vorderansicht einer erfindungsgemäßen Tiefziehverpackungsmaschine,
Figur 2
schematische Ansicht einer Reckstation während eines Folienvorschubs,
Figur 3
schematische Ansicht einer Reckstation mit geklemmter Folienbahn beim Aufheizen,
Figur 4
schematische Ansicht einer Reckstation beim Recken,
Figur 5
schematische Ansicht einer Reckstation beim Kühlen ,
Figur 6
schematische Ansicht einer Reckstation vor einem folgenden Vorschub.
In the following, an advantageous embodiment of the invention is illustrated in more detail with reference to a drawing.
FIG. 1
a front view of a thermoforming packaging machine according to the invention,
FIG. 2
schematic view of a stretching station during a film feed,
FIG. 3
schematic view of a stretching station with clamped film web during heating,
FIG. 4
schematic view of a stretching station while stretching,
FIG. 5
schematic view of a stretching station when cooling,
FIG. 6
schematic view of a stretching station before a subsequent feed.

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

Figur 1 zeigt in schematischer Ansicht eine Tiefziehverpackungsmaschine 1. Diese weist eine Formstation 2, eine Siegelstation 3, eine Querschneideeinrichtung 4 und Längsschneideeinrichtung 5 auf, die in dieser Reihenfolge in einer Arbeitsrichtung R an einem Maschinengestell 6 angeordnet sind. Eingangsseitig befindet sich an dem Maschinengestell 6 eine Zufuhrrolle 7, von der eine Unterfolie 8 abgezogen wird. In der Formstation 2 wird in die Unterfolie 8 eine Packungsmulde 9 geformt. Im Bereich der Siegelstation 3 ist ein Materialspeicher 10 vorgesehen, von dem eine Folienbahn 11 abgezogen wird. Vor dem Zuführen der Folienbahn 11 in die Siegelstation 3 durchläuft diese eine Reckstation 12. FIG. 1 shows a schematic view of a thermoforming packaging machine 1. This has a forming station 2, a sealing station 3, a cross-cutting device 4 and longitudinal cutting device 5, which are arranged in this order in a 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 lower film 8 is withdrawn. In the forming station 2, a packing trough 9 is formed in the lower film 8. In the area of the sealing station 3, a material reservoir 10 is provided, from which a film web 11 is drawn off. Before feeding the film web 11 into the sealing station 3, this passes through a stretching station 12.

Ausgangsseitig ist an der Verpackungsmaschine 1 eine Abfuhreinrichtung 13 in Form eines Transportbandes vorgesehen, mit der fertige vereinzelte Verpackungen 14 abtransportiert werden. Ferner weist die Verpackungsmaschine 1 eine nicht dargestellte Vorschubeinrichtung auf, die die Unterfolie 8 seitlich ergreift und in dem Hauptarbeitstakt taktweise in der Arbeitsrichtung R weitertransportiert. Die Vorschubeinrichtung kann z.B. durch seitlich angeordnete Transportketten realisiert sein.On the output side, a discharge device 13 in the form of a conveyor belt is provided on the packaging machine 1, with the finished individualized packages 14 being transported away. Furthermore, the packaging machine 1, a feed device, not shown, which engages the lower film 8 side and further transported in the main working cycle in cycles in the direction of R. The feed device may e.g. be realized by laterally arranged transport chains.

Im Bereich der Einlegestrecke 15 wird ein Produkt 16 eingelegt. Eine Steuerung 17 zur Eingabe von Parametern durch den Bediener und zur Visualisierung von Betriebszuständen ist an einem Schaltschrank 18 angebracht.In the area of the insertion path 15, a product 16 is inserted. A controller 17 for input of parameters by the operator and for visualization of operating conditions is attached to a control cabinet 18.

Figur 2 zeigt eine Reckstation 12, die im Bereich oberhalb der Siegelstation 3 am Schaltschrank 18 angebracht ist. Von dem Materialspeicher 10 wird die Folienbahn 11 über Umlenkrollen 19 durch die Reckeinrichtung 12 in die Siegelstation 3 transportiert. Dies geschieht durch die Vorschubbewegung der Unterfolie 8, an die ein vorderer Bereich der Folienbahn 11 bereits angesiegelt ist, wodurch die Folienbahn 11 mitgezogen wird. Es sind Klemmbalken 20 und 21 gezeigt, sowie ein Druckmarkensensor 22, eine Heizeinrichtung 23 und eine Kühleinrichtung 24. Ein Hubwerk 25 ist für die gemeinsame Bewegung der Heizeinrichtung 23 und der Folienkühlvorrichtung 24 dargestellt. In Figur 2 ist der Prozesszeitpunkt gezeigt, in dem die Folienbahn 11 durch den Vorschub der Unterfolie 8 in Transportrichtung R mitgezogen wird. Dabei erfasst der Druckmarkensensor 22 eine auf der Folienbahn 11 vorhanden Druckmarke. Das Signal des Druckmarkensensors 22 wird an die Steuerung 17 gesendet und die Steuerung 17 ermittelt den Zeitpunkt, an dem die Klemmbalken 20 und 21 schließen. FIG. 2 shows a stretching station 12, which is mounted in the area above the sealing station 3 on the cabinet 18. From the material storage 10, the film web 11 is transported via deflection rollers 19 by the stretching device 12 in the sealing station 3. This is done by the advancing movement of the lower film 8, to which a front region of the film web 11 is already sealed, whereby the film web 11 is pulled along. Clamp bars 20 and 21 are shown, as well as a print mark sensor 22, a heater 23 and a cooler 24. A hoist 25 is shown for the co-movement of the heater 23 and the film cooler 24. In FIG. 2 the process time is shown, in which the film web 11 is pulled along by the feed of the lower film 8 in the transport direction R. In this case, the print mark sensor 22 detects a printed mark present on the film web 11. The signal from the print mark sensor 22 is sent to the controller 17, and the controller 17 determines the timing at which the clamp bars 20 and 21 close.

Dabei klemmen die Klemmbalken 20 und 21 die Folienbahn 11 an die Umlenkrollen 19, wie in Figur 3 dargestellt. Dies geschieht vorzugsweise am Ende der intermittierenden Vorschubbewegung der Unterfolie 8. Gleichzeitig, davor oder kurz nach dem Klemmen der Folienbahn 11 bewegt das Hubwerk 25 die Heizeinrichtung 23, hier als Heizplatte dargestellt, an die Folienbahn 11. Dabei stehen die Heizplatte 23 und die Folienbahn 11 in Kontakt und es folgt die Erwärmung auf eine für das Recken entsprechende Recktemperatur. Die Recktemperatur liegt nahe einer Glasübergangstemperatur, bei der es zu einem signifikanten Wechsel der mechanischen Eigenschaften wie Härte und Elastizität der Folienbahn 11 kommt. Je nach Folienzusammensetzung liegt diese Temperatur zwischen 60 °C und 90 °C, z.B. liegt bei APET die Glasübergangstemperatur bei ca. 74 °C. Folien mit einer Dicke von mehr als 200 µm besitzen bei Temperaturen kleiner von 30 °C kein Dehnverhalten.The clamping bars 20 and 21 clamp the film web 11 to the deflection rollers 19, as in FIG. 3 shown. This is preferably done at the end of the intermittent feed movement of the lower film 8. At the same time, before or shortly after the clamping of the film web 11, the hoist 25 moves the heater 23, shown here as a hot plate, to the film web 11. Here are the heating plate 23 and the film web eleventh in contact and it follows the heating to a stretching temperature corresponding to the stretching. The stretching temperature is close to a glass transition temperature at which there is a significant change in the mechanical properties such as hardness and elasticity of the film web 11. Depending on the film composition, this temperature is between 60 ° C and 90 ° C, eg for APET, the glass transition temperature is about 74 ° C. Slides with a thickness of more than 200 microns have at temperatures below 30 ° C no stretching behavior.

Während und nach der Aufwärmphase erfolgt das Recken der Folienbahn 11; wie in Figur 4 gezeigt, durch eine radiale Bewegung des Klemmbalkens 21 um die Umlenkrolle 19 entgegen der Vorschubrichtung, und der zwischen den zwei Klemmbalken 20 und 21 eingespannte Bereich wird gereckt bzw. gelängt. Die Bewegung des Klemmbalkens 21 erfolgt durch einen nicht dargestellten Servoantrieb, der über die Steuerung 17 angesteuert wird und die notwendige Kraft und Stellgenauigkeit besitzt. Durch die Erwärmung der Folienbahn 11 sind die zum Recken benötigten Zugkräfte wesentlich geringer als beim Recken ohne eine Heizeinrichtung. Der Servoantrieb kann die Folienbahn 11 auch nach dem Recken noch weiter auf Spannung halten, um eine eventuelle Faltenbildung zu verhindern.During and after the warming-up phase, the stretching of the film web 11 takes place; as in FIG. 4 shown by a radial movement of the clamping bar 21 about the guide roller 19 against the feed direction, and the clamped between the two clamping bars 20 and 21 area is stretched or elongated. The movement of the clamping bar 21 is effected by a servo drive, not shown, which is controlled by the controller 17 and has the necessary force and positioning accuracy. By heating the film web 11, the tensile forces required for stretching are much lower than when stretching without a heater. The servo drive can keep the film web 11 even after stretching even more tension to prevent any wrinkling.

Figur 5 zeigt die Phase nach dem Recken, bei der das Hubwerk 25 die Heizeinrichtung 23 von der Folienbahn 11 wegbewegt und die Folienkühlvorrichtung 24 an die Folienbahn 11 heranbewegt, so dass sie in Kontakt kommen, um die Folienbahn 11 in diesem Bereich auf eine Temperatur herunterzukühlen, bis die Folienbahn 11 in dem gereckten Zustand thermofixiert ist. Vorzugsweise ist der Bereich der Folienkühlvorrichtung 24 gegenüber der Heizeinrichtung 23 in Transportrichtung größer, da die Foliebahn 11 durch die Heizeinrichtung 23 auch über diese hinaus eine Erwärmung erfährt. Somit ist sichergestellt, dass das gereckte Druckbild der Folienbahn 11 seine Abmaße behält, bis dieses bis in die Siegelstation 3 hineintransportiert ist. FIG. 5 shows the phase after stretching, in which the hoist 25, the heater 23 moves away from the film web 11 and the film cooling device 24 moves up to the film web 11 so that they come into contact to cool the film web 11 in this area to a temperature until the film web 11 is heat-set in the stretched state. Preferably, the area of the film cooling device 24 with respect to the heater 23 in the transport direction is greater, since the film web 11 is heated by the heater 23 also beyond this. This ensures that the stretched printed image of the film web 11 retains its dimensions until it is transported into the sealing station 3.

Die nach dem Recken thermofixierte Länge entspricht ca. 25 % bis 30% der Längung des eingespannten Folienbereichs während des Reckvorganges. Damit können auch bei gleichbleibendem Reckweg des Klemmbalkens 21 Folienbahnen 11 mit größeren Toleranzen in der Länge und Lage des Druckbildes seitens des Folienlieferanten verarbeitet werden. Dies führt zu einer Kostenersparnis in der Beschaffung beim Betreiber der Tiefziehverpackungsmaschine.The heat-set length after stretching corresponds to approximately 25% to 30% of the elongation of the clamped film area during the stretching process. Thus, 21 film webs 11 can be processed with greater tolerances in length and position of the printed image on the part of the film suppliers even with the same stretching path of the clamping bar. This leads to a cost savings in the procurement of the operator of the thermoforming packaging machine.

Nach Erreichen der Thermofixierung der Folienbahn 11 (s. Figur 6) werden die Klemmbalken 20 und 21 geöffnet, der Klemmbalken 21 wird zurück in seine Ausgangslage geschwenkt und das Hubwerk 25 bewegt die Folienkühlvorrichtung 24 nach oben bzw. weg von der Folienbahn 11 und die Heizeinrichtung 23 in Richtung der Positionen zum Erwärmen des nächsten Folienabschnitts. Ab dem Zeitpunkt der Freigabe der Folienbahn 11 durch die Klemmbalken 20, 21 kann der nächste Vorschub und Transport der Folienbahn 11 in Richtung Siegelstation 3 erfolgen.After reaching the heat setting of the film web 11 (s. FIG. 6 ), the clamping bars 20 and 21 are opened, the clamping bar 21 is pivoted back to its original position and the hoist 25 moves the film cooling device 24 up and away from the film web 11 and the heater 23 in the direction of the positions for heating of the next film section. From the time of release of the film web 11 by the clamping bar 20, 21, the next feed and transport of the film web 11 in the direction of sealing station 3 can take place.

Wird das Druckbild auf die entsprechende Länge der Packungsmulde 9 gereckt, so kann die Folienbahn 11 spannungsfrei aufgesiegelt werden. Dies wiederum ermöglicht den Einsatz von flexiblen Unterfolien 8. Ebenso bleiben Löcher, die in einer zwischen der Reckstation 12 und der Siegelstation 3 optional angeordneten Lochstation eingebracht werden, in ihrer Lage exakt bestehen, da es zu keiner Dehnung der Folie vor oder in der Siegelstation 3 kommt. Bei einer optionalen Oberfolienformstation ist und/oder einer Oberfolienklammerkettenführung bietet die Reckstation 12 ebenso die oben genannten Vorteile.If the printed image is stretched to the corresponding length of the packing trough 9, then the film web 11 can be sealed without tension. This in turn allows the use of flexible sub-films 8. Likewise, holes which are introduced in a perforation station optionally arranged between the stretching station 12 and the sealing station 3 remain in their exact position, since there is no stretching of the film before or in the sealing station 3 comes. With an optional top film forming station and / or an upper film clip chain guide, the stretching station 12 also provides the above advantages.

Es ist ebenso denkbar, dass die Heizeinrichtung 23 und die Folienkühlvorrichtung 24 eigene Hubwerke besitzen, um unabhängig voneinander an die Foliebahn 11 und zurück bewegt werden zu können. Um eine optimale Wärmeübertragung bzw. Kühlung zu erhalten, kann die Folie mittels Vakuum an die Heizeinrichtung 23 und/oder Kühleinrichtung 24 angezogen werden, um einen gleichmäßigen Kontakt über die betreffende Fläche zu erhalten.It is also conceivable that the heating device 23 and the film cooling device 24 have their own hoists in order to be able to be moved independently of the film web 11 and back. In order to obtain optimum heat transfer or cooling, the film can be attracted by vacuum to the heater 23 and / or cooling device 24 in order to obtain a uniform contact over the surface in question.

Eine flächiger Kontakt der Folienbahn 11 an die Heizeinrichtung 23 und die Folienkühlvorrichtung 24 kann auch durch eine konvexe Form an der Oberfläche der Heizplatte oder Kühlplatte ausgeführt sein. Beim Wegbewegen der Heizeinrichtung 23 kann der Servoantrieb den Klemmbalken 21 um die freiwerdende Folienbahnlänge nachspannen.A flat contact of the film web 11 to the heater 23 and the film cooling device 24 may also be performed by a convex shape on the surface of the heating plate or cooling plate. When moving away the heater 23, the servo drive can tighten the clamping bar 21 to the liberated film web length.

Die Folienkühlvorrichtung 24 kann mittels einer Wasserkühlung dauergekühlt sein.The film cooling device 24 can be permanently cooled by means of water cooling.

Der Klemmbalken 20 kann wie der Klemmbalken 21 schwenkbar sein und durch einen Servoantrieb schwenkbar oder linear bewegbar ausgeführt sein.The clamping bar 20 may be pivotable as the clamping bar 21 and pivotally or linearly movable by a servo drive.

Claims (14)

Tiefziehverpackungsmaschine (1), umfassend eine Reckstation (12) zum Recken einer Folienbahn (11) mit einer Heizeinrichtung (23), einem Druckmarkensensor (22) und einer Klemmeinrichtung (20, 21), dadurch gekennzeichnet, dass die Reckstation (12) eine Folienkühlvorrichtung (24) aufweist.Thermoforming packaging machine (1), comprising a stretching station (12) for stretching a film web (11) with a heating device (23), a print mark sensor (22) and a clamping device (20, 21), characterized in that the stretching station (12) comprises a film cooling device (24). Tiefziehverpackungsmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Folienkühlvorrichtung (24) eine Kühlplatte aufweist.Thermoforming packaging machine according to claim 1, characterized in that the film cooling device (24) has a cooling plate. Tiefziehverpackungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Folienkühlvorrichtung (24) auf einer anderen Seite der Folienbahn (11) liegt als die Heizeinrichtung (23).Thermoforming packaging machine according to one of the preceding claims, characterized in that the film cooling device (24) lies on a different side of the film web (11) than the heating device (23). Tiefziehverpackungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Reckstation (12) ein Hubwerk (25) zum Hin- und Wegbewegen der Folienkühleinrichtung (24) zur Folienbahn (11) aufweist.Thermoforming packaging machine according to one of the preceding claims, characterized in that the stretching station (12) has a lifting mechanism (25) for moving the film cooling device (24) back and forth to the film web (11). Tiefziehverpackungsmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Folienkühlvorrichtung (24) und die Heizeinrichtung (23) gemeinsam gegenüber der Folienbahn (11) mittels des Hubwerks (25) bewegbar sind.Thermoforming packaging machine according to claim 4, characterized in that the film cooling device (24) and the heating device (23) together with respect to the film web (11) by means of the lifting mechanism (25) are movable. Tiefziehverpackungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Folienkühlvorrichtung (24) oberhalb einer Siegelstation (3) angeordnet ist.Thermoforming packaging machine according to one of the preceding claims, characterized in that the film cooling device (24) above a sealing station (3) is arranged. Tiefziehverpackungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Reckstation (12) wenigstens einen Klemmbalken (21) umfasst, der schwenkbar ist, um die Folienbahn (11) zu recken.Thermoforming packaging machine according to one of the preceding claims, characterized in that the stretching station (12) comprises at least one clamping bar (21) which is pivotable in order to stretch the film web (11). Tiefziehverpackungsmaschine nach Anspruch 7, dadurch gekennzeichnet, dass der Klemmbalken (21) einen Servoantrieb hat.Thermoforming packaging machine according to claim 7, characterized in that the clamping bar (21) has a servo drive. Verfahren zum Recken einer Folienbahn (11) auf einer Tiefziehmaschine (1) mittels einer Reckstation (12) mit einer Heizeinrichtung (23), dadurch gekennzeichnet, dass die Reckstation (12) eine Folienbahn (11) nach dem Aufheizen der Folienbahn (11) und nach dem Recken der Folienbahn (11) aktiv kühlt.Method for stretching a film web (11) on a thermoforming machine (1) by means of a stretching station (12) with a heating device (23), characterized in that the stretching station (12) actively cools a film web (11) after heating the film web (11) and after stretching the film web (11). Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die Folienbahn (11) mittels einer Folienkühlvorrichtung (24), insbesondere einer Kühlplatte, gekühlt wird.A method according to claim 9, characterized in that the film web (11) by means of a film cooling device (24), in particular a cooling plate, is cooled. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Folienbahn (11) soweit gekühlt wird, bis die Folienbahn (11) thermofixiert ist.A method according to claim 9 or 10, characterized in that the film web (11) is cooled until the film web (11) is heat-set. Verfahren nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Folienbahn (11) durch Kontakt mit der Folienkühlvorrichtung (24) gekühlt wird.A method according to claim 10 or 11, characterized in that the film web (11) is cooled by contact with the film cooling device (24). Verfahren nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass eine Steuerung (17) ein Signal eines Druckmarkensensors (22) aufnimmt und zusammen mit Vorgaben in der Steuerung (17), die durch einen Bediener eingegeben wurden, auswertet und daraus das Recken der Folienbahn (11) steuert.Method according to one of Claims 9 to 12, characterized in that a controller (17) receives a signal from a print-mark sensor (22) and evaluates it together with specifications in the control (17) entered by an operator and from this the stretching of the Film web (11) controls. Verfahren nach einem der vorangehenden Ansprüche 9 bis 13, dadurch gekennzeichnet, dass das Recken der Folienbahn (11) durch einen Klemmbalken (21) mittels eines Servoantriebs erfolgt.Method according to one of the preceding claims 9 to 13, characterized in that the stretching of the film web (11) by a clamping bar (21) by means of a servo drive.
EP11008381A 2010-10-20 2011-10-18 Deep draw packaging machine and method for stretching a sheet of film Not-in-force EP2444324B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020207670A1 (en) * 2019-04-11 2020-10-15 Syntegon Technology Gmbh Method and device for processing a cover of a package

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102837849A (en) * 2012-09-13 2012-12-26 内蒙古三主粮天然燕麦产业股份有限公司 Automatic continuously drawing vacuum package machine
DE102012024725A1 (en) * 2012-12-18 2014-06-18 Multivac Sepp Haggenmüller Gmbh & Co. Kg Thermoforming packaging machine and process
US10730652B2 (en) * 2014-10-28 2020-08-04 Heat Seal Llc Packaging machine and method for fabricating sheet metal housing components
ES2886563T3 (en) * 2016-01-12 2021-12-20 Multivac Haggenmueller Kg Forming station for a thermoforming packaging machine
IT201700035537A1 (en) 2017-03-31 2018-10-01 Fillshape Srl Process and apparatus for the manufacture of bags for doypack and similar food containers.
DE102017211557A1 (en) 2017-07-06 2019-01-10 Robert Bosch Gmbh Device for influencing a film in a thermoforming plant
US11472579B2 (en) 2018-12-04 2022-10-18 Gpcp Ip Holdings Llc Film securing apparatus and method
CN110239777B (en) * 2019-06-28 2021-09-21 湖北周黑鸭食品工业园有限公司 Preparation method of packaging container and packaging container
CN110239795A (en) * 2019-06-28 2019-09-17 湖北鸭酷科技有限公司 A kind of printed sheet material localization method for packaging
EP4028245A1 (en) * 2019-09-09 2022-07-20 GEA Food Solutions Weert B.V. Stretching unit for clamping and stretching a tubular film, flow-wrapper and method for clamping and stretching a tubular film
DE102019218265A1 (en) * 2019-11-26 2021-05-27 Multivac Sepp Haggenmüller Se & Co. Kg PACKAGING MACHINE WITH SEALED PULLEY
DE102020209819A1 (en) 2020-08-04 2022-02-10 Multivac Sepp Haggenmüller Se & Co. Kg film clamping

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018028A (en) * 1971-07-23 1977-04-19 Societe D'application Plastique Mecanique Et Electronique, Plastimecanique S.A. Arrangement for aligning heat-sealable lids on mating product-filled containers
EP0270109A2 (en) * 1986-12-04 1988-06-08 Finnah GmbH Method and device for stretching webs of material, especially lid foil webs for packaging containers
US6109000A (en) * 1996-06-06 2000-08-29 I.M.A. Industria Macchine Automatiche S.P.A. Method and device for heat-welding a covering band made of thermoplastic material to a blister band, with control and regulation of the longitudinal centering
EP1620317B1 (en) 2003-04-29 2006-11-02 CFS Germany GmbH Cover film stretching device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762125A (en) * 1971-03-17 1973-10-02 Morrell & Co John Film registration apparatus
US3805486A (en) * 1972-05-31 1974-04-23 Mahaffy & Harder Eng Co Packaging apparatus and techniques
FR2205039A5 (en) 1972-10-02 1974-05-24 Robache Roger
US4034536A (en) * 1976-06-11 1977-07-12 Mahaffy & Harder Engineering Company Packaging apparatus and techniques
US4033089A (en) * 1976-07-21 1977-07-05 Henry Lowell Byland Package wrapping method and apparatus
US6247293B1 (en) * 1998-11-03 2001-06-19 Klockner Bartelt, Inc. Modular packaging machine with web tension control
DE10227610A1 (en) * 2002-06-20 2004-01-15 Multivac Sepp Haggenmüller GmbH & Co. Packaging method and apparatus
JP4471562B2 (en) * 2002-09-26 2010-06-02 株式会社クレハ Deep drawing packaging method
EP1626855B1 (en) * 2003-04-24 2018-04-18 Ole-Bendt Rasmussen Method of manufacturing oriented films from alloyed thermoplastic polymers
CN101624100B (en) * 2005-08-19 2012-05-30 枝江奥美医疗用品有限公司 Three-dimensional packing machine and sealing system thereof
CN201109506Y (en) * 2007-11-30 2008-09-03 张卫兵 Shaping mechanism for toothbrush packaging machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018028A (en) * 1971-07-23 1977-04-19 Societe D'application Plastique Mecanique Et Electronique, Plastimecanique S.A. Arrangement for aligning heat-sealable lids on mating product-filled containers
EP0270109A2 (en) * 1986-12-04 1988-06-08 Finnah GmbH Method and device for stretching webs of material, especially lid foil webs for packaging containers
US6109000A (en) * 1996-06-06 2000-08-29 I.M.A. Industria Macchine Automatiche S.P.A. Method and device for heat-welding a covering band made of thermoplastic material to a blister band, with control and regulation of the longitudinal centering
EP1620317B1 (en) 2003-04-29 2006-11-02 CFS Germany GmbH Cover film stretching device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020207670A1 (en) * 2019-04-11 2020-10-15 Syntegon Technology Gmbh Method and device for processing a cover of a package
US11981470B2 (en) 2019-04-11 2024-05-14 Syntegon Technology Gmbh Method and device for processing a cover of a package

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US20120096809A1 (en) 2012-04-26
EP2444324B1 (en) 2013-02-13
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