EP2927135B1 - Vacuum packaging device support unit - Google Patents

Vacuum packaging device support unit Download PDF

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Publication number
EP2927135B1
EP2927135B1 EP15161463.3A EP15161463A EP2927135B1 EP 2927135 B1 EP2927135 B1 EP 2927135B1 EP 15161463 A EP15161463 A EP 15161463A EP 2927135 B1 EP2927135 B1 EP 2927135B1
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EP
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Prior art keywords
support unit
support
bearing plate
vacuum
unit according
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EP15161463.3A
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German (de)
French (fr)
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EP2927135A1 (en
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Rainer Wiebers
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags

Definitions

  • the present invention relates to a support unit of a vacuum packaging apparatus according to the preamble of claim 1.
  • vacuum packaging machines are used in particular in the food industry for vacuum packaging of meat, fish, vegetables and the like, but also for the vacuum packaging of other items.
  • These vacuum packaging devices essentially have a support unit on which the foodstuffs or other objects to be packaged are placed, and a lid which is placed on the support unit and hermetically closes the area between the support unit and lid, and a vacuum pump with which the between support unit and lid enclosed space is evacuated, so that the resting on the platen food or resting on the platen object can be packaged using a packaging unit within the evacuated room.
  • Such devices are for example in GB 2 107 270 A . US 3,537,229 A and US 3,950,919 A described.
  • the support plate In order to ensure an airtight closure of the cover on the support plate, the support plate must be very flat especially in the support region of the lid edge.
  • the support plate and any support means arranged under the support plate for supporting the support plate must be made very stable. For this purpose, in particular thick steel sheets are used with a material thickness of 4 mm and more.
  • Object of the present invention is to provide a support unit of a vacuum packaging device with sufficiently great dimensional stability with less material use.
  • the support unit according to the invention in this case has a support plate and arranged under the support plate support means with a bottom plate, a frame framing the frame and arranged in the frame support struts on which the support plate rests.
  • a first vacuum connection piece for connection to a vacuum pump for evacuating the room protrudes into a space which can be sealed air-tight with a cover on an upper side of the support plate facing away from the support means.
  • the support device has a second vacuum connection piece or a second opening of the first vacuum connection piece opens into the support device, through which the interior space enclosed by the support device and the support plate can be evacuated.
  • the first vacuum connection piece is received through the support device in an opening in the support plate.
  • the vacuum pump is usually placed in a housing of the vacuum packaging apparatus below the support means.
  • the support struts have passage openings. It is also conceivable to provide passage openings between the support struts and the support plate and / or the bottom plate and / or the frame, by which it is possible to evacuate existing in the interior space between support means and support plate air and at the same time the support means through the support struts so stabilize that surrounding the bottom plate and the bottom plate Frame of the support means surrounding the support means surrounding external pressure with evacuated interior withstands.
  • the support struts of the support means are preferably arranged in the interior of the support means that divide the interior into a plurality of air-permeable chambers.
  • the cross section of these chambers is preferably rectangular, but are also conceivable other cross sections such as diamonds or honeycomb.
  • the support struts are welded to the bottom plates and / or the frame, in particular laser welded.
  • the thermal load of the welded components is about 70% smaller than when using conventional welding methods and the associated welds.
  • laser welded support means are much cheaper to produce than screwed together or interconnected by bolts support means.
  • the material thickness of the support plate is between 40% and 70% of the known from the prior art support plates, which are applied in use only on a surface with vacuum. As a result, a more cost-effective production of such support units is possible.
  • the support plate is bent over at least at a portion of its outer edges to the bottom plate.
  • a support border aligned parallel to the base plate for supporting the support plate is arranged on the outer edges of the frame facing the support plate.
  • top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the support unit, support plate, base plate, frame, support struts, vacuum connection piece and the like chosen in the respective figures. These terms are not intended to be limiting, that is to say, by different working positions or the mirror-symmetrical design or the like, these references may change.
  • FIG. 1 is by the reference numeral 2, a support means in the FIGS. 2 and 3 Designated by the reference numeral 1 supporting unit of a vacuum packaging device.
  • the arranged below a support plate 3 support means 2 a bottom plate 4 and a frame surrounding the bottom plate 4 frame 5.
  • the bottom plate 4 and the frame parts of the frame 5 are, as in FIG. 3 can be seen, preferably made of a metal sheet in one piece. It is also conceivable to construct the frame 5 and the base plate in several parts, wherein the components are secured together, in particular welded together. Furthermore, the frame 5 can also be placed on the bottom plate.
  • a plurality of support struts 6 are arranged, which serve on the one hand to stabilize the support means 2 and the second of the support of the support plate 3.
  • the support struts 6 are arranged at right angles to each other in the embodiment shown here. Conceivable, however, are arrangements of the support struts 6 as a honeycomb structure or other angled arrangements to each other.
  • the support means 2 may also be formed, for example, as a die-cast or die-cast parts, in particular aluminum die-cast or made of suitable plastics, for example as an injection molded part, or other suitable materials.
  • the support struts are further provided with through holes 7. These can, as in the FIGS. 1 and 3 can be clearly seen, for example, be formed in the form of circular recesses. It is also conceivable, for example, to provide recesses on the upper or lower edges of the support struts 6 bearing against the support plate 3 or the bottom plate 4, so that the passage openings in this case are formed between the support struts 6 and the support plate 3 and / or the bottom plate 4 ,
  • the support unit 1 of the Weiten a through the support means 2 reaching through the vacuum fitting 9 for connection to a vacuum pump, with an evacuation of a above the platen 3 by a (not shown) cover or hood of the vacuum packaging machine covered volume is evacuated.
  • This vacuum connection piece 9 is preferably protruding from the upper side of the support plate 3 facing away from the support device 2, a rosette 12 preferably being fastened on this upper side of the support plate 3 and comprising the vacuum connection piece 9 terminating in the opening of the support plate 3.
  • FIGS. 1 to 3 opens a second vacuum fitting 10 in the support means 2 of the support unit.
  • This second vacuum connection piece 10 opens in particular in a designated opening in the bottom plate 4 of the support means 2.
  • a second vacuum fitting 10 opens into the bottom plate 4 of the support means 2
  • a further opening in the vacuum fitting 9 is provided, so that after switching on a vacuum pump at the same time the space between the support plate 3 and this cover covering the cover or hood and the interior of the support means 2 is evacuated.
  • the support struts 6 are preferably welded to the bottom plate 4 and / or the frame 5, in particular laser welded.
  • laser welding the heat input during welding of the components can be reduced by about 70% compared to conventional welding methods.
  • the material thickness of the support plate 3 and preferably also of the frame and the bottom plate 4 on the support means 2 is preferably between 40% and 70% of the known from the prior art support plates, which are applied in use only on a surface with vacuum.
  • the material thickness of a support plate 3 of the support unit 1 according to the invention is reducible to a material thickness of 2 and 3 mm, for example, with respect to a 5 mm thick support plate, which has to withstand a one-sided vacuum.
  • the support plate 3 As in the Figures 3 and 5 can be seen, at least at a portion of its outer edges 11 bent to the bottom plate 4 out.
  • This support border 8 is preferably formed integrally with the frame 5, wherein the outer edges of the frame 5 are bent perpendicular to the frame surface.
  • a plurality of holes 15 are preferably provided, can be pushed through the bolts or screws to attach the support plate 3 to the support border 8.
  • the support means 2 which serves as the base plate in the example described above support plate 3 and the bottom plate 4 as a support for the packaged cargo. It is important to obstruct the vacuum fittings so that on the one hand, the space enclosed by the support means 2, as described above, is evacuated and secondly the space above the support for the packaged goods to be airtight from the lid or the hood on the Pad rests or can be pressed, can be evacuated via a vacuum connector.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)

Description

Die vorliegende Erfindung betrifft eine Auflageeinheit einer Vakuumverpackungsvorrichtung gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a support unit of a vacuum packaging apparatus according to the preamble of claim 1.

Gattungsgemäße Auflageeinheiten von Vakuumverpackungsvorrichtungen, insbesondere von als Kammermaschinen bezeichneten Vakuumverpackungsmaschinen, werden insbesondere im Lebensmittelbereich zur Vakuumverpackung von Fleisch, Fisch, Gemüse und dergleichen, aber auch zur Vakuumverpackung anderer Gegenstände eingesetzt.Generic bearing units of vacuum packaging devices, in particular referred to as chamber machines vacuum packaging machines are used in particular in the food industry for vacuum packaging of meat, fish, vegetables and the like, but also for the vacuum packaging of other items.

Diese Vakuumverpackungsvorrichtungen weisen dabei im Wesentlichen eine Auflageeinheit auf, auf der die zu verpackenden Lebensmittel oder sonstigen Gegenstände aufgelegt werden sowie einen Deckel, der auf die Auflageeinheit aufgesetzt wird und dabei den Bereich zwischen Auflageeinheit und Deckel luftdicht verschließt sowie eine Vakuumpumpe, mit der der zwischen Auflageeinheit und Deckel eingeschlossene Raum evakuierbar ist, so dass das auf der Auflageplatte aufliegende Lebensmittel bzw. der auf der Auflageplatte aufliegende Gegenstand mithilfe einer Verpackungseinheit innerhalb des evakuierten Raumes verpackt werden kann.These vacuum packaging devices essentially have a support unit on which the foodstuffs or other objects to be packaged are placed, and a lid which is placed on the support unit and hermetically closes the area between the support unit and lid, and a vacuum pump with which the between support unit and lid enclosed space is evacuated, so that the resting on the platen food or resting on the platen object can be packaged using a packaging unit within the evacuated room.

Solche Vorrichtungen werden zum Beispiel in GB 2 107 270 A , US 3,537,229 A und US 3,950,919 A beschrieben. Um einen luftdichten Abschluss des Deckels auf der Auflageplatte zu gewährleisten, muss die Auflageplatte insbesondere im Auflagebereich des Deckelrandes sehr eben ausgebildet sein. Um Verformungen der Auflageplatte der Auflageeinheit zu vermeiden, muss die Auflageplatte sowie eine eventuell unter der Auflageplatte angeordnete Stützeinrichtung zur Abstützung der Auflageplatte sehr stabil gefertigt sein. Dazu werden insbesondere dicke Stahlbleche mit einer Materialdicke von 4 mm und mehr eingesetzt.Such devices are for example in GB 2 107 270 A . US 3,537,229 A and US 3,950,919 A described. In order to ensure an airtight closure of the cover on the support plate, the support plate must be very flat especially in the support region of the lid edge. In order to avoid deformation of the support plate of the support unit, the support plate and any support means arranged under the support plate for supporting the support plate must be made very stable. For this purpose, in particular thick steel sheets are used with a material thickness of 4 mm and more.

Aufgabe der vorliegenden Erfindung ist es, eine Auflageeinheit einer Vakuumverpackungsvorrichtung mit hinreichend großer Formstabilität bei geringerem Materialeinsatz bereitzustellen.Object of the present invention is to provide a support unit of a vacuum packaging device with sufficiently great dimensional stability with less material use.

Diese Aufgabe wird durch eine Auflageeinheit einer Vakuumverpackungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a support unit of a vacuum packaging device with the features of claim 1.

Die erfindungsgemäße Auflageeinheit weist dabei eine Auflageplatte auf sowie eine unter der Auflageplatte angeordnete Stützeinrichtung mit einer Bodenplatte, einem die Bodenplatte umrahmenden Rahmen sowie in dem Rahmen angeordnete Stützstreben, auf denen die Auflageplatte aufliegt. Dabei ragt in einen mit einer Abdeckung luftdicht verschließbaren Raum auf einer der Stützeinrichtung abgewandten Oberseite der Auflageplatte ein erstes Vakuumanschlussstück zum Anschluss an eine Vakuumpumpe zur Evakuierung des Raumes. Die Stützeinrichtung weist ein zweites Vakuumanschlussstück auf oder eine zweite Öffnung des ersten Vakuumanschlussstücks mündet in die Stützeinrichtung, durch das der von der Stützeinrichtung und der Auflageplatte umschlossene Innenraum evakuierbar ist.The support unit according to the invention in this case has a support plate and arranged under the support plate support means with a bottom plate, a frame framing the frame and arranged in the frame support struts on which the support plate rests. In this case, a first vacuum connection piece for connection to a vacuum pump for evacuating the room protrudes into a space which can be sealed air-tight with a cover on an upper side of the support plate facing away from the support means. The support device has a second vacuum connection piece or a second opening of the first vacuum connection piece opens into the support device, through which the interior space enclosed by the support device and the support plate can be evacuated.

Damit ist ermöglicht, dass die Auflageplatte der Auflageeinheit von beiden Seiten, sprich von ihrer der Stützeinrichtung abgewandten Oberseite und ihrer der Stützeinrichtung zugewandten Unterseite her mit einem Vakuum beaufschlagbar ist, so dass die Auflageplatte keinen durch das Vakuum verursachten Zugkräften ausgesetzt ist und damit die Materialstärke der Auflageplatte deutlich geringer ausgeführt sein kann als bei den Auflageplatten von aus dem Stand der Technik bekannten Auflageeinheiten.This makes it possible that the support plate of the support unit from both sides, ie facing away from the supporting device top and its support means facing underside can be acted upon by a vacuum, so that the support plate is not exposed to tensile forces caused by the vacuum and thus the material thickness of Platen can be made significantly lower than the support plates known from the prior art support units.

Vorteilhafte Ausführungsvarianten der Erfindung sind Gegenstand der Unteransprüche. Erfindungsgemäß ist das erste Vakuumanschlussstück durch die Stützeinrichtung hindurchreichend in einer Öffnung der Auflageplatte aufgenommen. Dadurch ist eine kurze Verbindung zwischen Vakuumpumpe und dem ersten Vakuumanschlussstück ermöglicht, da die Vakuumpumpe üblicherweise in einem Gehäuse der Vakuumverpackungsvorrichtung unterhalb der Stützeinrichtung platziert ist.Advantageous embodiments of the invention are the subject of the dependent claims. According to the invention, the first vacuum connection piece is received through the support device in an opening in the support plate. Thereby, a short connection between the vacuum pump and the first vacuum fitting is made possible because the vacuum pump is usually placed in a housing of the vacuum packaging apparatus below the support means.

Gemäß einer weiteren vorteilhaften Ausführungsvariante der Erfindung weisen die Stützstreben Durchgangsöffnungen auf. Denkbar ist außerdem, zwischen den Stützstreben und der Auflageplatte und/oder der Bodenplatte und/oder dem Rahmen Durchgangsöffnungen vorzusehen, durch die ermöglicht ist, die in dem Innenraum zwischen Stützeinrichtung und Auflageplatte vorhandene Luft zu evakuieren und dabei gleichzeitig die Stützeinrichtung durch die Stützstreben derart zu stabilisieren, dass die Bodenplatte und der Bodenplatte umgebende Rahmen der Stützeinrichtung dem die Stützeinrichtung umgebenden Außendruck bei evakuiertem Innenraum stand hält.According to a further advantageous embodiment of the invention, the support struts have passage openings. It is also conceivable to provide passage openings between the support struts and the support plate and / or the bottom plate and / or the frame, by which it is possible to evacuate existing in the interior space between support means and support plate air and at the same time the support means through the support struts so stabilize that surrounding the bottom plate and the bottom plate Frame of the support means surrounding the support means surrounding external pressure with evacuated interior withstands.

Die Stützstreben der Stützeinrichtung sind dabei bevorzugt so in dem Innenraum der Stützeinrichtung angeordnet, dass diese den Innenraum in mehrere luftdurchlässige Kammern unterteilen. Der Querschnitt dieser Kammern ist dabei bevorzugt rechteckig, denkbar sind aber auch andere Querschnitte wie beispielsweise Rauten oder Waben.The support struts of the support means are preferably arranged in the interior of the support means that divide the interior into a plurality of air-permeable chambers. The cross section of these chambers is preferably rectangular, but are also conceivable other cross sections such as diamonds or honeycomb.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind die Stützstreben mit den Bodenplatten und/oder dem Rahmen verschweißt, insbesondere laserverschweißt. Insbesondere durch den Einsatz des Laserschweißens ist die thermische Belastung der miteinander verschweißten Bauteile um etwa 70% kleiner als beim Einsatz herkömmlicher Schweißverfahren und der damit einhergehenden Schweißnähte. Außerdem sind solche laserverschweißten Stützeinrichtungen wesentlich kostengünstiger herzustellen als miteinander verschraubte oder durch Bolzen miteinander verbundene Stützeinrichtungen.According to a further advantageous embodiment of the invention, the support struts are welded to the bottom plates and / or the frame, in particular laser welded. In particular, by the use of laser welding, the thermal load of the welded components is about 70% smaller than when using conventional welding methods and the associated welds. In addition, such laser welded support means are much cheaper to produce than screwed together or interconnected by bolts support means.

Gemäß einer weiteren bevorzugten Ausführungsvariante der Erfindung beträgt die Materialstärke der Auflageplatte zwischen 40% und 70% der aus dem Stand der Technik bekannten Auflageplatten, die im Einsatz nur auf einer Fläche mit Vakuum beaufschlagt sind. Dadurch ist eine kostengünstigere Fertigung solcher Auflageeinheiten ermöglicht.According to a further preferred embodiment of the invention, the material thickness of the support plate is between 40% and 70% of the known from the prior art support plates, which are applied in use only on a surface with vacuum. As a result, a more cost-effective production of such support units is possible.

Zur Fixierung der Auflageplatte auf der Stützeinrichtung ist es gemäß einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, dass die Auflageplatte zumindest an einem Teil ihrer Außenränder zur Bodenplatte hin umgebogen ist.For fixing the support plate on the support means, it is provided according to an advantageous embodiment of the invention that the support plate is bent over at least at a portion of its outer edges to the bottom plate.

Des Weiteren ist gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung an den der Auflageplatte zugewandten Außenrändern des Rahmens eine parallel zur Bodenplatte ausgerichtete Auflageumrandung zur Auflage der Auflageplatte angeordnet.Furthermore, in accordance with a further preferred embodiment of the invention, a support border aligned parallel to the base plate for supporting the support plate is arranged on the outer edges of the frame facing the support plate.

Zur stabilen Fixierung der Vakuumanschlussstücke ist gemäß einer weiteren vorteilhaften Ausführungsvariante der Erfindung auf einer der Stützeinrichtung abgewandten Oberseite der Auflageplatte ein das in der Öffnung der Auflageplatte endendes Vakuumanschlussstück umfassende Rosette befestigt. Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der beiliegenden Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine perspektivische Ansicht auf eine Stützeinrichtung einer Auflageeinheit,
Figur 2
eine Draufsicht auf die Auflageplatte mit darunter gestrichelt dargestellter Stützeinrichtung gemäß Figur 1,
Figur 3
eine Schnittansicht durch die Auflageeinheit entlang der mit III bezeichneten Schnittebene in Figur 2,
Figur 4
eine Ausschnittsvergrößerung des in Figur 3 mit IV bezeichneten Ausschnitts der Auflageeinheit und
Figur 5
eine Seitenansicht der Auflageeinheit aus Figur 1.
For stable fixation of the vacuum fittings, a rosette, which terminates in the opening of the support plate, is fastened on a top side of the support plate facing away from the support means, according to a further advantageous embodiment variant of the invention. Hereinafter, a preferred embodiment of the invention will be explained in more detail with reference to the accompanying drawings. Show it:
FIG. 1
a perspective view of a support means of a support unit,
FIG. 2
a plan view of the support plate with dashed lines below support means according to FIG. 1 .
FIG. 3
a sectional view through the support unit along the designated III cutting plane in FIG. 2 .
FIG. 4
an enlarged detail of the in FIG. 3 with IV designated section of the support unit and
FIG. 5
a side view of the support unit FIG. 1 ,

In der nachfolgenden Figurenbeschreibung beziehen sich Begriffe wie oben, unten, links, rechts, vorne, hinten usw. ausschließlich auf die in den jeweiligen Figuren gewählte beispielhafte Darstellung und Position der Auflageeinheit, Auflageplatte, Bodenplatte, Rahmen, Stützstreben, Vakuumanschlussstück und dergleichen. Diese Begriffe sind nicht einschränkend zu verstehen, das heißt, durch verschiedene Arbeitsstellungen oder die spiegelsymmetrische Auslegung oder dergleichen können sich diese Bezüge ändern.In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the support unit, support plate, base plate, frame, support struts, vacuum connection piece and the like chosen in the respective figures. These terms are not intended to be limiting, that is to say, by different working positions or the mirror-symmetrical design or the like, these references may change.

In der Figur 1 ist mit dem Bezugszeichen 2 eine Stützeinrichtung einer in den Figuren 2 und 3 mit dem Bezugszeichen 1 bezeichneten Auflageeinheit einer Vakuumverpackungsvorrichtung bezeichnet.In the FIG. 1 is by the reference numeral 2, a support means in the FIGS. 2 and 3 Designated by the reference numeral 1 supporting unit of a vacuum packaging device.

Wie in den Figuren 1 bis 3 erkennbar ist, weist die unterhalb einer Auflageplatte 3 angeordnete Stützeinrichtung 2 eine Bodenplatte 4 auf sowie einen die Bodenplatte 4 umrahmenden Rahmen 5. Die Bodenplatte 4 und die Rahmenteile des Rahmens 5 sind dabei, wie in Figur 3 zu erkennen ist, bevorzugt aus einem Metallblech einstückig gefertigt. Denkbar ist aber auch, den Rahmen 5 und die Bodenplatte mehrteilig auszuführen, wobei die Bauteile aneinander befestigt, insbesondere miteinander verschweißt sind. Desweiteren kann der Rahmen 5 auch auf die Bodenplatte aufgesetzt sein.As in the FIGS. 1 to 3 can be seen, the arranged below a support plate 3 support means 2 a bottom plate 4 and a frame surrounding the bottom plate 4 frame 5. The bottom plate 4 and the frame parts of the frame 5 are, as in FIG. 3 can be seen, preferably made of a metal sheet in one piece. It is also conceivable to construct the frame 5 and the base plate in several parts, wherein the components are secured together, in particular welded together. Furthermore, the frame 5 can also be placed on the bottom plate.

Innerhalb des Rahmens 5 sind eine Vielzahl von Stützstreben 6 angeordnet, die einerseits zur Stabilisierung der Stützeinrichtung 2 und zum zweiten der Auflage der Auflageplatte 3 dienen.Within the frame 5, a plurality of support struts 6 are arranged, which serve on the one hand to stabilize the support means 2 and the second of the support of the support plate 3.

Die Stützstreben 6 sind in dem hier gezeigten Ausführungsbeispiel rechtwinkelig zu einander angeordnet. Denkbar sind aber auch Anordnungen der Stützstreben 6 als Wabenstruktur oder andere winklige Anordnungen zueinander.The support struts 6 are arranged at right angles to each other in the embodiment shown here. Conceivable, however, are arrangements of the support struts 6 as a honeycomb structure or other angled arrangements to each other.

Neben der oben genannten Fertigung der Bauteile der Stützeinrichtung 2 aus Metallblechteilen kann die Stützeinrichtung 2 auch beispielsweise als Druckgussteil oder aus Druckgussteilen, insbesondere Aluminiumdruckguss ausgebildet sein oder aus geeigneten Kunststoffen, beispielsweise als Spritzgussteil gefertigt, oder anderen geeigneten Materialien bestehen.In addition to the above-mentioned production of the components of the support means 2 of sheet metal parts, the support means 2 may also be formed, for example, as a die-cast or die-cast parts, in particular aluminum die-cast or made of suitable plastics, for example as an injection molded part, or other suitable materials.

Die Stützstreben sind des Weiteren mit Durchgangsöffnungen 7 versehen. Diese können, wie in den Figuren 1 und 3 gut zu erkennen ist, beispielsweise in Gestalt kreisförmiger Ausnehmungen ausgebildet sein. Denkbar ist es auch, beispielsweise an den an der Auflageplatte 3 oder der Bodenplatte 4 anliegenden Ober- oder Unterkanten der Stützstreben 6 Ausnehmungen vorzusehen, so dass die Durchgangsöffnungen in diesem Fall zwischen den Stützstreben 6 und der Auflageplatte 3 und/oder der Bodenplatte 4 ausgebildet sind.The support struts are further provided with through holes 7. These can, as in the FIGS. 1 and 3 can be clearly seen, for example, be formed in the form of circular recesses. It is also conceivable, for example, to provide recesses on the upper or lower edges of the support struts 6 bearing against the support plate 3 or the bottom plate 4, so that the passage openings in this case are formed between the support struts 6 and the support plate 3 and / or the bottom plate 4 ,

Wie in den Figuren 1 bis 3 zu erkennen ist, weist die Auflageeinheit 1 des Weiten ein durch die Stützeinrichtung 2 durchreichendes Vakuumanschlussstück 9 zum Anschluss an eine Vakuumpumpe auf, mit dem eine Evakuierung eines oberhalb der Auflageplatte 3 von einem (nicht gezeigten) Deckel oder Haube der Vakuumverpackungsmaschine abgedeckten Volumens evakuierbar ist. Dieses Vakuumanschlussstück 9 steht dabei bevorzugt aus der der Stützeinrichtung 2 abgewandten Oberseite der Auflageplatte 3 hervor, wobei auf dieser Oberseite der Auflageplatte 3 bevorzugt eine Rosette 12 befestigt ist, die das in der Öffnung der Auflageplatte 3 endende Vakuumanschlussstück 9 umfasst.As in the FIGS. 1 to 3 it can be seen, the support unit 1 of the Weiten a through the support means 2 reaching through the vacuum fitting 9 for connection to a vacuum pump, with an evacuation of a above the platen 3 by a (not shown) cover or hood of the vacuum packaging machine covered volume is evacuated. This vacuum connection piece 9 is preferably protruding from the upper side of the support plate 3 facing away from the support device 2, a rosette 12 preferably being fastened on this upper side of the support plate 3 and comprising the vacuum connection piece 9 terminating in the opening of the support plate 3.

Wie in den Figuren 1 bis 3 des Weiteren gezeigt ist, mündet ein zweites Vakuumanschlussstück 10 in die Stützeinrichtung 2 der Auflageeinheit. Diese zweite Vakuumanschlussstück 10 mündet dabei insbesondere in eine dazu vorgesehene Öffnung in der Bodenplatte 4 der Stützeinrichtung 2. Dadurch ist ermöglicht, dass auch der von der Stützeinrichtung 2 und der Auflageplatte 3 umschlossene Innenraum 13 evakuierbar ist, so dass nach Beaufschlagung der Vakuumverpackungsvorrichtung mit einem Vakuum oberhalb und unterhalb der Auflageplatte 3 die Auflageplatte 3 gleichmäßig druckbeaufschlagt ist und somit keine Zug- oder Druckkräfte auf die Auflageplatte 3, hervorgerufen durch einen nur einseitige Vakuumbeaufschlagung der Auflageplatte, wie es bei den Vakuumverpackungsmaschinen gemäß dem Stand der Technik üblich ist, einwirken.As in the FIGS. 1 to 3 is further shown, opens a second vacuum fitting 10 in the support means 2 of the support unit. This second vacuum connection piece 10 opens in particular in a designated opening in the bottom plate 4 of the support means 2. This makes it possible that also of the support means 2 and the support plate 3 enclosed interior 13 is evacuated, so that after exposure of the Vacuum packaging device with a vacuum above and below the platen 3, the platen 3 is uniformly pressurized and thus no tensile or compressive forces on the platen 3, caused by only one-sided vacuum loading of the platen, as is common in the vacuum packaging machines according to the prior art, act.

Neben der in den Figuren gezeigten Ausführungsvariante, bei der ein zweites Vakuumanschlussstück 10 in die Bodenplatte 4 der Stützeinrichtung 2 mündet, ist gemäß einer alternativen Ausführungsvariante in dem ersten Vakuumanschlussstück 9 im Bereich unterhalb der Auflageplatte 3 und oberhalb der Bodenplatte 4 eine weitere Öffnung in dem Vakuumanschlussstück 9 vorgesehen, so dass nach Einschalten einer Vakuumpumpe gleichzeitig der Raum zwischen Auflageplatte 3 und dem diesen abdeckenden Deckel oder Haube als auch der Innenraum der Stützeinrichtung 2 evakuiert wird.In addition to the embodiment shown in the figures, in which a second vacuum fitting 10 opens into the bottom plate 4 of the support means 2, according to an alternative embodiment in the first vacuum fitting 9 in the area below the support plate 3 and above the bottom plate 4, a further opening in the vacuum fitting 9 is provided, so that after switching on a vacuum pump at the same time the space between the support plate 3 and this cover covering the cover or hood and the interior of the support means 2 is evacuated.

Die Stützstreben 6 sind mit der Bodenplatte 4 und/oder dem Rahmen 5 bevorzugt verschweißt, insbesondere laserverschweißt. Durch Einsatz des Laserschweißens lässt sich der Wärmeeintrag beim Verschweißen der Bauteile um etwa 70% gegenüber herkömmlichen Schweißverfahren verringern.The support struts 6 are preferably welded to the bottom plate 4 and / or the frame 5, in particular laser welded. By using laser welding, the heat input during welding of the components can be reduced by about 70% compared to conventional welding methods.

Die Materialstärke der Auflageplatte 3 und bevorzugt auch des Rahmens und der Bodenplatte 4 an der Stützeinrichtung 2 beträgt vorzugsweise zwischen 40% und 70% der aus dem Stand der Technik bekannten Auflageplatten, die im Einsatz nur auf einer Fläche mit Vakuum beaufschlagt sind. So ist die Materialstärke einer Auflageplatte 3 der erfindungsgemäßen Auflageeinheit 1 gegenüber einer beispielsweise 5mm dicken Auflageplatte, die einem einseitig wirkenden Vakuum standhalten muss, auf eine Materialstärke von 2 und 3 mm reduzierbar. Hier hat sich in zahlreichen Versuchen überraschend gezeigt, dass Materialstärken dieser Größe hinreichend sind, um dem beaufschlagten Vakuum innerhalb der Stützeinrichtung 2 und hinsichtlich der Auflageplatte 3 auch dem gleich großen Vakuum in einem Raum zwischen Auflageplatte 3 und einem auf dieser aufliegenden Deckel oder Haube standhält, ohne sich derart zur verziehen, dass die Aufrechterhaltung des Vakuums insbesondere zwischen Auflageplatte 3 und Deckel oder Haube gefährdet ist.The material thickness of the support plate 3 and preferably also of the frame and the bottom plate 4 on the support means 2 is preferably between 40% and 70% of the known from the prior art support plates, which are applied in use only on a surface with vacuum. Thus, the material thickness of a support plate 3 of the support unit 1 according to the invention is reducible to a material thickness of 2 and 3 mm, for example, with respect to a 5 mm thick support plate, which has to withstand a one-sided vacuum. This has surprisingly been shown in numerous experiments that material thicknesses of this size are sufficient to withstand the applied vacuum within the support means 2 and in terms of the support plate 3 and the same size vacuum in a space between the support plate 3 and a resting on this lid or hood, without warping in such a way that the maintenance of the vacuum in particular between the support plate 3 and cover or hood is at risk.

Zur Fixierung der Auflageplatte 3 auf der Stützeinrichtung 2 ist die Auflageplatte 3, wie in den Figuren 3 und 5 zu erkennen ist, zumindest an einem Teil ihrer Außenränder 11 zur Bodenplatte 4 hin umgebogen.To fix the support plate 3 on the support means 2, the support plate 3, as in the Figures 3 and 5 can be seen, at least at a portion of its outer edges 11 bent to the bottom plate 4 out.

Des Weiteren ist an den der Auflageplatte 3 zugewandten Außenrändern des Rahmens 5 eine parallel zur Bodenplatte 4 ausgerichtete Auflageumrandung 8 angeordnet ist, auf der die Auflageplatte 3 ruht. Diese Auflageumrandung 8 ist dabei bevorzugt einstückig mit dem Rahmen 5 ausgebildet, wobei die Außenränder des Rahmens 5 senkrecht zur Rahmenfläche umgebogen sind.Furthermore, on the support plate 3 facing the outer edges of the frame 5 a parallel to the bottom plate 4 aligned support edge 8 is arranged, on which the support plate 3 rests. This support border 8 is preferably formed integrally with the frame 5, wherein the outer edges of the frame 5 are bent perpendicular to the frame surface.

In dieser Auflageumrandung 8 sind bevorzugt mehrere Bohrungen 15 vorgesehen, durch die Bolzen oder Schrauben durchsteckbar sind, um die Auflageplatte 3 an der Auflageumrandung 8 zu befestigen.In this Auflageumrandung 8 a plurality of holes 15 are preferably provided, can be pushed through the bolts or screws to attach the support plate 3 to the support border 8.

Mit der oben beschriebenen Auflageeinheit 1 mit einer durch Stützstreben in eine Vielzahl von luftdurchlässigen Kammern 14 unterteilten Innenraum 13 und sowohl mit dem Innenraum der Stützeinrichtung 2 und der der Stützeinrichtung 2 abgewandten Oberseite der Auflageplatte 3 mündenden Vakuumanschlussstücken 9, 10 ist eine stabile Auflageeinheit 1 mit geringen Materialstärken der bevorzugt aus einem Edelstahlblech gefertigten Auflageplatte 3 und bevorzugt ebenfalls aus Edelstahlblechen gefertigten Stützeinrichtung 2 bereitgestellt, die in einer Vakuumverpackungsvorrichtung, bei der die Auflageeinheit 1 in einem Gehäuse eingesetzt ist und in der eine Vakuumpumpe angeordnet ist und die mit einem absenkbaren Deckel oder einer Haube versehen ist, mit dem die Auflageeinheit 1 luftdicht abdeckbar ist, kostengünstig herstellbar und aufgrund der geringeren Materialstärken der eingesetzten Bleche zu dem leichter als die aus dem Stand der Technik bekannten Auflageeinheiten.With the support unit 1 described above with a subdivided by support struts in a plurality of air-permeable chambers 14 interior 13 and both with the interior of the support means 2 and the support means 2 facing away from the top of the support plate 3 opening vacuum fittings 9, 10 is a stable support unit 1 with low Material thicknesses of preferably made of a stainless steel sheet support plate 3 and preferably also made of stainless steel sheets support means 2 provided in a vacuum packaging apparatus, wherein the support unit 1 is inserted into a housing and in which a vacuum pump is arranged and with a lowerable lid or a hood is provided, with which the support unit 1 is airtight coverable, inexpensive to produce and due to the lower material thicknesses of the sheets used to the lighter than the known from the prior art support units.

Denkbar ist auch, die Stützeinrichtung 2 so zu konstruieren, das die im oben beschriebenen Beispiel bezeichnete Auflageplatte 3 als Bodenplatte dient und die Bodenplatte 4 als Auflage für das zu verpackende Stückgut. Wichtig ist, die Vakuumanschlussstücke so zu verbauen, dass zum einen der von der Stützeinrichtung 2 umschlossenen Raum, wie oben beschrieben, evakuierbar ist und zum zweiten der Raum oberhalb der Auflage für das zu verpackende Stückgut, der von dem Deckel oder der Haube luftdicht auf der Auflage aufliegt bzw. aufdrückbar ist, über ein Vakuumanschlussstück evakuierbar ist.It is also conceivable to construct the support means 2, which serves as the base plate in the example described above support plate 3 and the bottom plate 4 as a support for the packaged cargo. It is important to obstruct the vacuum fittings so that on the one hand, the space enclosed by the support means 2, as described above, is evacuated and secondly the space above the support for the packaged goods to be airtight from the lid or the hood on the Pad rests or can be pressed, can be evacuated via a vacuum connector.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Auflageeinheitsupport unit
22
Stützeinrichtungsupport means
33
Auflageplatteplaten
44
Bodenplattebaseplate
55
Rahmenframe
66
Stützstrebensupport struts
77
DurchgangsöffnungThrough opening
88th
Auflageumrandungedition border
99
erstes Vakuumanschlussstückfirst vacuum fitting
1010
zweites Vakuumanschlussstücksecond vacuum fitting
1111
Außenränderouter edges
1212
Rosetterosette
1313
Innenrauminner space
1414
Kammernchambers
1515
Bohrungendrilling

Claims (14)

  1. A support unit (1) of a vacuum packaging machine, comprising
    a. a bearing plate (3),
    b. a supporting means (2) arranged below the bearing plate (3), said supporting means having
    i. a base plate (4),
    ii. a frame (5) placed onto the base plate (4) or framing the latter,
    iii. supporting struts (6) which are arranged in the frame (5) and on which the bearing plate (3) rests,
    c. a first vacuum connector (9) for connection to a vacuum pump of the vacuum packaging machine for evacuating a chamber on an upper side of the bearing plate (3) facing away from the supporting means (2), which chamber can be closed in an airtight manner by a cover of the vacuum packaging machine,
    wherein
    d. the first vacuum connector (9) passes through the supporting means (2) and is received in an opening of the bearing plate (3), and
    e. the supporting means (2) has a second vacuum connector (10) or a second opening of the first vacuum connector (9) opens into the supporting means (2), through which the interior space (13) enclosed by the supporting means (2) and the bearing plate (3) can be evacuated.
  2. The support unit according to claim 1, characterized in that the second vacuum connector (10) opens into the base plate (4).
  3. The support unit according to any of the preceding claims, characterized in that the supporting struts (6) have through-openings (7).
  4. The support unit according to any of the preceding claims, characterized in that through-openings are provided between the supporting struts (6) and the bearing plate (3) and/or the base plate (4) and/or the frame (5).
  5. The support unit according to any of the preceding claims, characterized in that the supporting struts (6) divide the interior space (13) into a plurality of air-permeable chambers (14).
  6. The support unit according to any of the preceding claims, characterized in that the supporting means (2) is made of metal sheets.
  7. The support unit according to any of the preceding claims, characterized in that the supporting struts (6) are welded, in particular laser-welded, to the base plate (4) and/or the frame (5).
  8. The support unit according to any of the preceding claims, characterized in that the material thickness of the bearing plate (3) is between 2 mm and 3 mm.
  9. The support unit according to any of the preceding claims, characterized in that the bearing plate (3) is bent towards the base plate (4) at least on a portion of its outer edges (11).
  10. The support unit according to any of the preceding claims, characterized in that a bearing rim (8) for bearing the bearing plate (3) is arranged at the outer edges of the frame (5) facing towards the bearing plate (3), said bearing rim being oriented parallel to the base plate (4).
  11. The support unit according to claim 10, characterized in that the bearing plate (3) is fastened to the bearing rim (8).
  12. The support unit according to any of the preceding claims, characterized in that an escutcheon (12) encircling the first vacuum connector (9) received in the opening of the bearing plate (3) is fastened to an upper side of the bearing plate (3) facing away from the supporting means (2).
  13. The support unit according to any of the preceding claims, characterized in that the supporting means (2) is formed at least in part as a die-cast component or consists of die-cast components, cast in particular from aluminium, or is made of suitable plastic materials, for example as an injection-moulded component.
  14. A vacuum packaging device, comprising a housing in which a support unit (1) and a vacuum pump are arranged, wherein the support unit (1) can be covered in an airtight manner by a cover, characterized in that the support unit (1) is designed according to one or more of the preceding claims.
EP15161463.3A 2014-04-04 2015-03-27 Vacuum packaging device support unit Active EP2927135B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014104816.4A DE102014104816A1 (en) 2014-04-04 2014-04-04 Support unit of a vacuum packaging device

Publications (2)

Publication Number Publication Date
EP2927135A1 EP2927135A1 (en) 2015-10-07
EP2927135B1 true EP2927135B1 (en) 2017-07-19

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ID=52780920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15161463.3A Active EP2927135B1 (en) 2014-04-04 2015-03-27 Vacuum packaging device support unit

Country Status (2)

Country Link
EP (1) EP2927135B1 (en)
DE (1) DE102014104816A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4230539A3 (en) * 2023-06-06 2024-02-14 Webomatic Maschinenfabrik GmbH Packaging machine for food or medical devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537229A (en) * 1967-11-29 1970-11-03 Morrell & Co John Product spacing structure
US3950919A (en) * 1974-08-22 1976-04-20 W. R. Grace & Co. Apparatus and process for vacuum skin packaging
CA1086206A (en) * 1976-11-30 1980-09-23 Timothy T. Day Process and apparatus for vacuum packing
CA1247515A (en) * 1981-09-14 1988-12-28 Richard R. Perdue Method and apparatus for vacuum packaging goods in heat shrinkable plastic bags
GB2271545A (en) * 1992-10-19 1994-04-20 Grace W R & Co Packaging machine and process
DE9316080U1 (en) * 1993-10-21 1994-01-13 Heymann, Hans-Helmut, 30926 Seelze Device for the vacuum-tight sealing of containers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102014104816A1 (en) 2015-10-08

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