EP2050676A1 - Shrink tunnel - Google Patents
Shrink tunnel Download PDFInfo
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- EP2050676A1 EP2050676A1 EP08166622A EP08166622A EP2050676A1 EP 2050676 A1 EP2050676 A1 EP 2050676A1 EP 08166622 A EP08166622 A EP 08166622A EP 08166622 A EP08166622 A EP 08166622A EP 2050676 A1 EP2050676 A1 EP 2050676A1
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- European Patent Office
- Prior art keywords
- gas supply
- supply device
- gaseous medium
- shrink tunnel
- flow chamber
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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
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/063—Tunnels
Definitions
- the present invention relates to a shrink tunnel for shrinking packaging materials. From the prior art it is known to wrap containers, such as containers with multiple containers, with a film and then to heat these containers in a shrink tunnel. The container or the packaging with a heated medium, such as hot air, acted upon and thus contract.
- a heated medium such as hot air
- the present invention is therefore an object of the invention to provide a shrink tunnel available, which allows an improved distribution of the heated air to the container. This is inventively by the subject achieved by claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.
- An inventive shrink tunnel for shrinking packaging materials has a channel along which the packaging materials to be shrunk are conveyed. Furthermore, at least one gas supply device is provided, which supplies a gaseous medium to the packaging materials, wherein the gas supply device has a supply port for supplying the gaseous medium and a plurality of outlet openings, through which the gaseous medium can exit from the gas supply device. The outlet openings are arranged in an exit surface.
- a flow chamber is provided in the interior of the gas supply device, along which the gaseous medium, starting from the supply port, reaches the outlet openings, wherein a flow cross section of the gaseous medium of this flow chamber tapers from the supply port.
- the gas supply device is, in particular, a distribution channel or a shaft wall for the shrink tunnel.
- the gaseous medium which is in particular is heated air supplied.
- the invention is based on the physical principle that the flow channel at those outlet openings, which are further spaced from the feed, tapers In order to achieve in this way a substantially uniform distribution of the exiting air.
- the flow chamber extends in the conveying direction and also tapers in or against the conveying direction starting from the feed port. By this taper of the flow chamber, a reduction of the flow cross-section is achieved simultaneously.
- the gas supply means are formed as plate-shaped plates.
- the outlet openings are distributed substantially uniformly in the exit surface. This uniform distribution in conjunction with the rejuvenation of a uniform outlet of the heated air over the entire exit surface is achieved.
- the gas supply means has an elongated shape.
- the gas supply device extends substantially in one direction, specifically in particular the conveying direction of the packaging materials.
- the gas supply device also has a certain height, but the thickness or width is substantially reduced.
- the plane in which the exit surface lies or in which the outlet openings are arranged is spanned by the transport direction on the one hand and by a direction perpendicular to a conveyor belt direction.
- the gas supply device has a long length, a lower height here and a much smaller depth.
- the feed connection is arranged on an upper side of the flow chamber. In this way, the gaseous medium is deflected inside the flow chamber and thus achieves a particularly uniform distribution over the individual outlet openings.
- the flow chamber tapers uniformly in the conveying direction starting from the feed connection. This means that in the conveying direction, the thickness of the flow chamber decreases continuously. However, it would also be possible for the flow chamber to be gradually reduced in the conveying direction.
- a gas-tight partition wall is arranged in the interior of the gas supply device.
- the flow chamber is formed on the one hand by the outer wall of the gas supply device but also by this partition. Through this gas-tight partition, the channel tapers.
- said partition wall is substantially rectilinear and is particularly preferably arranged geometrically as a diagonal within the gas supply device.
- the gas supply device has a second feed connection in order to supply the gaseous medium to the flow chamber or chambers (or to a further flow chamber).
- the two supply ports are particularly preferably provided at opposite ends of the gas supply device.
- a feed side of the gas supply device is supplied with air via the one feed connection and a via the second feed connection corresponding back side.
- two completely separate flow channels or flow chambers within the gas supply device are preferably formed by the partition, so that in a particularly advantageous manner, the entire space of the gas supply means can be utilized. Within these two flow chambers, the flow directions of the air are opposite to each other.
- the flow chamber tapers in only one dimension, namely its thickness, which in turn results in a particularly uniform distribution of the gaseous medium.
- a second exit surface is provided with a plurality of outlet openings and this second exit area is opposite to the first exit area.
- a main line which supplies the two feed ports with the gaseous medium.
- this main line opens via a respective supply line into the supply ports.
- the two supply lines are particularly preferably of the same length, whereby it is also achieved that the gaseous medium emerges as homogeneously as possible from both sides of the gas supply device.
- the shrink tunnel has a plurality of gas supply devices of the type mentioned above. In this way it is possible to lead the containers on several parallel paths through the shrink tunnel.
- the gas supply means are movable in a direction perpendicular to the conveying direction and in particular in a direction transverse to the conveying direction.
- an adjustment of the shrink tunnel can be made to different containers.
- one of the above-mentioned supply lines can be switched off. In this way it is possible, in the case of the gas supply devices which are on the outside, to let out only the air via one of the two exit surfaces.
- the hole diameter of the evenly distributed over the exit surface holes of the gas supply device in the direction of flow is changed (increased) in order to achieve a more even distribution of the gaseous medium.
- Fig. 1 shows a shrink tunnel 1 for shrinking packaging materials.
- the packaging materials are conveyed via a conveyor belt 42 in the conveying direction F.
- hot air is applied to the packaging materials (not shown), which are in particular containers, and in this way the packaging materials are shrunk onto the containers.
- a plurality of gas supply means are provided inside this housing.
- Fig. 2 shows a gas supply device 10 according to the invention.
- This gas supply device has two supply ports 6 and 8 for supplying the gaseous medium, ie in particular the heated air. Starting from the feed port 6 is inside the Gas supply device 10, the gaseous medium in the direction of the second feed port 8 and vice versa, starting from the second feed port 8 in the direction of the first feed port 6.
- the two supply ports 6,8 are, however, not in fluid communication with each other within the gas supply means.
- the outflow of the feed ports 6.8 flow chambers are completely separated from each other.
- the gaseous medium can escape via a plurality of outlet openings 15 to the outside and act on the container in this way.
- the inventive narrowing of the flow channel in the interior of the gas supply device ensures that the gaseous medium exits uniformly over all outlet openings 12.
- These individual outlet openings 15 are formed in an exit surface 12.
- a further outlet surface 13 is formed, on which a plurality of outlet openings 15 is likewise arranged.
- These two exit surfaces 12, 13 and edges 22 and side edges 23,25 and a bottom edge (not shown) form a total space, which is closed except for the outlet openings 15, so that via the gas supply means 6 and 8 supplied medium only via the outlet openings 15th can emerge at the two exit surfaces 12 and 13.
- Fig. 3 shows the gas supply device Fig. 2 , wherein the feed ports 6 and 8 are omitted for clarity. It can be seen that below the supply ports 6 and 8 are each channels 26, the initially vertically and then curved in the interior of the gas supply device 10 extend. In the embodiment shown here, a total of three such channels 26 are formed on each terminal side. It can further be seen that the gas supply device has an overall cuboid shape, wherein the length L is substantially greater than the height H and the height H is again substantially greater than the depth T.
- the length L of the gas supply device is between 1000 mm and 4000 mm, preferably between 1500 mm and 3500 mm and more preferably between 2500 mm and 3500 mm.
- the height H of the gas supply means is in a range between 300 mm and 400 mm and the depth T in a range of 20 mm and 40 mm.
- Fig. 4 shows an exploded view of a gas supply device 10 according to the invention. It can be seen here the two exit surfaces 12 and 13, which are formed in two side parts 36 and 38. It is preferably possible to perform these two side parts 36 and 38 similar, whereby the manufacturing process is simplified. These two side parts 36 and 38 are attached to each other, for example by welding, and, since the two side parts 36, 38 also have side edges 23 and a bottom edge 37, ie between the two side parts 36, 38 apart from the outlet openings 15 and the channels 26 closed space formed.
- the reference numerals 27 and 29 relate to gas guiding devices which serve to divert the gaseous medium in the interior of the gas supply device and, after leaving this gas supply device, to flow substantially in the direction L or opposite thereto. Due to the arrangement of the three gas guide 27 and 29, the gas (or air) can also be distributed over the entire height H of the device. Corresponding gas guiding devices are also located in the side wall 38, but there in Fig. 4 on the left.
- the reference numeral 18 refers to a gas-tight partition, which is arranged in the assembled state between the two side parts 36 and 38.
- this gas-tight partition 18 is arranged such that it at the in Fig. 4 shown embodiment, the space formed between this partition wall 18 and the side part 36, tapered from right to left.
- rejuvenates in Fig. 4 the space formed between the partition wall 18 and the side part 38 from left to right.
- the partition wall 18 therefore extends diagonally.
- the reference numerals 14 and 16 refer to the two flow chambers, which are formed between the partition 18 on the one hand and the two side parts 36 and 38 on the other. By the mentioned diagonal arrangement of the partition wall, the two flow chambers are formed symmetrically to each other.
- Fig. 5 shows a further view of a gas supply device 10 according to the invention.
- supply lines 32 and 34 are also provided here, which provide the two supply ports 6 and 8 with the gaseous medium.
- a main line 20 is provided which distributes the gaseous medium to the two supply lines 32 and 34 via a distributor device 21.
- Fig. 6 shows a plan view of the gas supply device Fig. 5 but here the two feed lines 32 and 34 are not shown. It can also be seen in this illustration that the gas supply device is constructed essentially symmetrically starting from the distributor device 21, whereby a very uniform distribution of the gaseous medium to the two supply ports 6 and 8 is achieved.
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- Vacuum Packaging (AREA)
Abstract
Description
Die vorliegende Erfindung bezieht sich auf einen Schrumpftunnel zum Schrumpfen von Verpackungsmaterialien. Aus dem Stand der Technik ist es bekannt, Gebinde, beispielsweise Gebinde mit mehreren Behältnissen, mit einer Folie zu umwickeln und diese Gebinde anschließend in einem Schrumpftunnel zu erwärmen. Dabei werden die Gebinde bzw. die Verpackung mit einem erwärmten Medium, wie heißer Luft, beaufschlagt und ziehen sich dadurch zusammen.The present invention relates to a shrink tunnel for shrinking packaging materials. From the prior art it is known to wrap containers, such as containers with multiple containers, with a film and then to heat these containers in a shrink tunnel. The container or the packaging with a heated medium, such as hot air, acted upon and thus contract.
Aus der
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Schrumpftunnel zur Verfügung zu stellen, der eine verbesserte Verteilung der erwärmten Luft auf die Gebinde ermöglicht. Dies wird erfindungsgemäß durch den Gegenstand von Anspruch 1 erreicht. Vorteilhafte Ausführungsformen und Weiterbildungen sind Gegenstand der Unteransprüche.The present invention is therefore an object of the invention to provide a shrink tunnel available, which allows an improved distribution of the heated air to the container. This is inventively by the subject achieved by claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.
Ein erfindungsgemäßer Schrumpftunnel zum Schrumpfen von Verpackungsmaterialien weist einen Kanal auf, entlang dessen die zu schrumpfenden Verpackungsmaterialien gefördert werden. Weiterhin ist wenigstens eine Gaszuführungseinrichtung vorgesehen, welche den Verpackungsmaterialien ein gasförmiges Medium zuführt, wobei die Gaszuführungseinrichtung einen Zuführanschluss zur Zuführung des gasförmigen Mediums und eine Vielzahl von Austrittsöffnungen aufweist, durch die das gasförmige Medium aus der Gaszuführungseinrichtung austreten kann. Dabei sind die Austrittöffnungen in einer Austrittsfläche angeordnet.An inventive shrink tunnel for shrinking packaging materials has a channel along which the packaging materials to be shrunk are conveyed. Furthermore, at least one gas supply device is provided, which supplies a gaseous medium to the packaging materials, wherein the gas supply device has a supply port for supplying the gaseous medium and a plurality of outlet openings, through which the gaseous medium can exit from the gas supply device. The outlet openings are arranged in an exit surface.
Erfindungsgemäß ist im Inneren der Gaszuführungseinrichtung eine Strömungskammer vorgesehen, entlang derer das gasförmige Medium, ausgehend von dem Zuführanschluss, zu den Austrittöffnungen gelangt, wobei sich ein Strömungsquerschnitt des gasförmigen Mediums dieser Strömungskammer ausgehend von dem Zuführanschluss verjüngt.According to the invention, a flow chamber is provided in the interior of the gas supply device, along which the gaseous medium, starting from the supply port, reaches the outlet openings, wherein a flow cross section of the gaseous medium of this flow chamber tapers from the supply port.
Bei der Gaszuführungseinrichtung handelt es sich insbesondere um einen Verteilerkanal bzw. eine Schachtwand für den Schrumpftunnel. Über den Zuführanschluss wird dieser Gaszuführungseinrichtung das gasförmige Medium, bei dem es sich insbesondere um erwärmte Luft handelt, zugeführt. Durch die Verjüngung der Strömungskammer ausgehend von dem Zuführanschluss wird erreicht, dass das gasförmige Medium gleichmäßig durch die einzelnen Austrittsöffnungen austritt. Damit liegt der Erfindung das physikalische Prinzip zugrunde, dass der Strömungskanal bei denjenigen Austrittsöffnungen, die weiter von dem Zuführanschluss beabstandet sind, verjüngt wird, um auf diese Weise eine im Wesentlichen gleichmäßige Verteilung der austretenden Luft zu erreichen.The gas supply device is, in particular, a distribution channel or a shaft wall for the shrink tunnel. About the feed port of this gas supply means, the gaseous medium, which is in particular is heated air supplied. By the tapering of the flow chamber starting from the feed connection, it is achieved that the gaseous medium emerges uniformly through the individual outlet openings. Thus, the invention is based on the physical principle that the flow channel at those outlet openings, which are further spaced from the feed, tapers In order to achieve in this way a substantially uniform distribution of the exiting air.
Vorzugsweise erstreckt sich die Strömungskammer in der Förderungsrichtung und verjüngt sich auch in oder entgegen der Förderungsrichtung ausgehend von dem Zuführanschluss. Durch diese Verjüngung der Strömungskammer wird gleichzeitig eine Verringerung des Strömungsquerschnitts erreicht. Vorzugsweise sind dabei die Gaszuführungseinrichtungen als plattenförmige Platten ausgebildet.Preferably, the flow chamber extends in the conveying direction and also tapers in or against the conveying direction starting from the feed port. By this taper of the flow chamber, a reduction of the flow cross-section is achieved simultaneously. Preferably, the gas supply means are formed as plate-shaped plates.
Vorzugsweise sind die Austrittsöffnungen im Wesentlichen gleichmäßig in der Austrittsfläche verteilt. Durch diese gleichmäßige Verteilung in Verbindung mit der Verjüngung wird ein gleichmäßiger Austritt der erhitzten Luft über die gesamte Austrittfläche erreicht.Preferably, the outlet openings are distributed substantially uniformly in the exit surface. This uniform distribution in conjunction with the rejuvenation of a uniform outlet of the heated air over the entire exit surface is achieved.
Vorzugsweise weist die Gaszuführungseinrichtung eine langgestreckte Gestalt auf. Darunter wird verstanden, dass sich die Gaszuführungseinrichtung im Wesentlichen in einer Richtung, nämlich insbesondere der Förderrichtung der Verpackungsmaterialien, erstreckt. In einer hierzu senkrechten Richtung weist die Gaszuführungseinrichtung ebenfalls eine bestimmte Höhe auf, die Dicke bzw. Breite ist jedoch wesentlich reduziert. Dies bedeutet, dass die Ebene, in der die Austrittsfläche liegt bzw. in der die Austrittsöffnungen angeordnet sind, durch die Transportrichtung einerseits und durch eine senkrecht auf einem Transportband stehende Richtung aufgespannt wird. Mit anderen Worten weist die Gaszuführungseinrichtung eine große Länge, eine hier gegenüber geringere Höhe und eine noch wesentlich geringere Tiefe auf.Preferably, the gas supply means has an elongated shape. This is understood to mean that the gas supply device extends substantially in one direction, specifically in particular the conveying direction of the packaging materials. In a direction perpendicular thereto, the gas supply device also has a certain height, but the thickness or width is substantially reduced. This means that the plane in which the exit surface lies or in which the outlet openings are arranged, is spanned by the transport direction on the one hand and by a direction perpendicular to a conveyor belt direction. In other words, the gas supply device has a long length, a lower height here and a much smaller depth.
Bei einer weiteren vorteilhaften Ausführungsform ist der Zuführanschluss an einer Oberseite der Strömungskammer angeordnet. Auf diese Weise wird im Inneren der Strömungskammer das gasförmige Medium umgelenkt und so eine besonders gleichmäßige Verteilung über die einzelnen Austrittsöffnungen erreicht.In a further advantageous embodiment, the feed connection is arranged on an upper side of the flow chamber. In this way, the gaseous medium is deflected inside the flow chamber and thus achieves a particularly uniform distribution over the individual outlet openings.
Bei einer weiteren vorteilhaften Ausführungsform verjüngt sich die Strömungskammer in der Förderungsrichtung ausgehend von dem Zuführanschluss gleichmäßig. Dies bedeutet, dass in der Förderrichtung die Dicke der Strömungskammer kontinuierlich abnimmt. Es wäre jedoch auch möglich, dass sich die Strömungskammer in der Förderrichtung stufenweise verringert. Bei einer weiteren vorteilhaften Ausführungsform ist im Inneren der Gaszuführungseinrichtung eine gasdichte Trennwand angeordnet. Damit wird die Strömungskammer einerseits durch die Außenwandung der Gaszuführungseinrichtung aber auch durch diese Trennwand gebildet. Durch diese gasdichte Trennwand verjüngt sich der Kanal. Vorzugsweise verläuft die genannte Trennwand im Wesentlichen geradlinig und ist besonders bevorzugt geometrisch als Diagonale innerhalb der Gaszuführungseinrichtung angeordnet.In a further advantageous embodiment, the flow chamber tapers uniformly in the conveying direction starting from the feed connection. This means that in the conveying direction, the thickness of the flow chamber decreases continuously. However, it would also be possible for the flow chamber to be gradually reduced in the conveying direction. In a further advantageous embodiment, a gas-tight partition wall is arranged in the interior of the gas supply device. Thus, the flow chamber is formed on the one hand by the outer wall of the gas supply device but also by this partition. Through this gas-tight partition, the channel tapers. Preferably, said partition wall is substantially rectilinear and is particularly preferably arranged geometrically as a diagonal within the gas supply device.
Bei einer weiteren vorteilhaften Ausführungsform weist die Gaszuführungseinrichtung einen zweiten Zuführanschluss auf, um der bzw. den Strömungskammern (bzw. einer weiteren Strömungskammer) das gasförmige Medium zuzuführen. Dabei sind besonders bevorzugt die beiden Zuführanschlüsse an sich gegenüberliegenden Enden der Gaszuführungseinrichtung vorgesehen. Vorzugsweise wird über den einen Zuführanschluss eine Forderseite der Gaszuführungseinrichtung mit Luft versorgt und über den zweiten Zuführanschluss eine entsprechende Rückseite. Damit werden durch die Trennwand vorzugsweise zwei vollständig voneinander getrennte Strömungskanäle bzw. Strömungskammern innerhalb der Gaszuführungseinrichtung gebildet, sodass in besonders vorteilhafter Weise der gesamte Raum der Gaszuführungseinrichtung ausgenutzt werden kann. Innerhalb dieser beiden Strömungskammern verlaufen die Strömungsrichtungen der Luft entgegengesetzt zueinander.In a further advantageous embodiment, the gas supply device has a second feed connection in order to supply the gaseous medium to the flow chamber or chambers (or to a further flow chamber). In this case, the two supply ports are particularly preferably provided at opposite ends of the gas supply device. Preferably, a feed side of the gas supply device is supplied with air via the one feed connection and a via the second feed connection corresponding back side. Thus, two completely separate flow channels or flow chambers within the gas supply device are preferably formed by the partition, so that in a particularly advantageous manner, the entire space of the gas supply means can be utilized. Within these two flow chambers, the flow directions of the air are opposite to each other.
Vorzugsweise verjüngt sich damit die Strömungskammer nur in einer Dimension, nämlich deren Dicke, wodurch wiederum eine besonders gleichmäßige Verteilung des gasförmigen Mediums erreicht wird.Preferably, therefore, the flow chamber tapers in only one dimension, namely its thickness, which in turn results in a particularly uniform distribution of the gaseous medium.
Bei einer weiteren vorteilhaften Ausführungsform ist eine zweite Austrittsfläche mit einer Vielzahl von Austrittsöffnungen vorgesehen und diese zweite Austrittsfläche liegt der ersten Austrittsfläche gegenüber. Auf diese Weise kann das gasförmige Medium in zwei entgegengesetzte Richtungen abgestrahlt werden und damit beispielsweise die Gaszuführungseinrichtung zwischen zwei Gebindebahnen angeordnet werden und gleichzeitig Gebinde auf diesen Bahnen mit heißer Luft beaufschlagen.In a further advantageous embodiment, a second exit surface is provided with a plurality of outlet openings and this second exit area is opposite to the first exit area. In this way, the gaseous medium can be radiated in two opposite directions and thus, for example, the gas supply device can be arranged between two bundle tracks and simultaneously act on containers on these tracks with hot air.
Bei einer weiteren vorteilhaften Ausführungsform ist eine Hauptleitung vorgesehen, welche die beiden Zuführanschlüsse mit dem gasförmigen Medium versorgt. Dabei mündet besonders bevorzugt diese Hauptleitung über je eine Zuführleitung in die Zuführanschlüsse. Die beiden Zuführleitungen sind besonders bevorzugt gleich lang ausgebildet, wobei auch hierdurch erreicht wird, dass das gasförmige Medium möglichst homogen aus beiden Seiten der Gaszuführungseinrichtung austritt.In a further advantageous embodiment, a main line is provided, which supplies the two feed ports with the gaseous medium. In this case, particularly preferably, this main line opens via a respective supply line into the supply ports. The two supply lines are particularly preferably of the same length, whereby it is also achieved that the gaseous medium emerges as homogeneously as possible from both sides of the gas supply device.
Bei einer weiteren vorteilhaften Ausführungsform weist der Schrumpftunnel eine Vielzahl von Gaszuführungseinrichtungen der oben genannten Art auf. Auf diese Weise ist es möglich die Gebinde auf mehreren zueinander parallelen Pfaden durch den Schrumpftunnel zu führen.In a further advantageous embodiment, the shrink tunnel has a plurality of gas supply devices of the type mentioned above. In this way it is possible to lead the containers on several parallel paths through the shrink tunnel.
Besonders vorteilhaft sind die Gaszuführungseinrichtungen in einer zu der Förderungsrichtung senkrecht stehenden Richtung beweglich und insbesondere in einer quer zu der Förderungsrichtung stehenden Richtung. Auf diese Weise kann eine Anpassung des Schrumpftunnels auf unterschiedliche Gebinde erfolgen. Vorteilhafterweise ist eine der oben genannten Zuführleitungen abschaltbar. Auf diese Weise ist es möglich, bei den Gaszuführungseinrichtungen, die außen liegen, jeweils nur die Luft über eine der beiden Austrittsflächen austreten zu lassen.Particularly advantageously, the gas supply means are movable in a direction perpendicular to the conveying direction and in particular in a direction transverse to the conveying direction. In this way, an adjustment of the shrink tunnel can be made to different containers. Advantageously, one of the above-mentioned supply lines can be switched off. In this way it is possible, in the case of the gas supply devices which are on the outside, to let out only the air via one of the two exit surfaces.
Bei einer weiteren vorteilhaften Ausführungsform wird der Lochdurchmesser der gleichmäßig über die Austrittsfläche verteilten Löcher der Gaszuführungseinrichtung in Laufrichtung der Strömung verändert (vergrößert), um eine noch gleichmäßigere Verteilung des gasförmigen Mediums zu erreichen.In a further advantageous embodiment, the hole diameter of the evenly distributed over the exit surface holes of the gas supply device in the direction of flow is changed (increased) in order to achieve a more even distribution of the gaseous medium.
Weitere Vorteile und Ausführungsformen ergeben sich aus den beigefügten Zeichnungen:Further advantages and embodiments will be apparent from the attached drawings:
- Fig. 1Fig. 1
- einen Schrumpftunnel zum Schrumpfen von Verpackungsmaterialien;a shrink tunnel for shrinking packaging materials;
- Fig. 2Fig. 2
- eine perspektivische Ansicht einer erfindungsgemäßen Gaszuführungseinrichtung;a perspective view of a gas supply device according to the invention;
- Fig. 3Fig. 3
-
die Gaszuführungseinrichtung aus
Fig. 2 ohne Anschlüsse;the gas supply deviceFig. 2 without connections; - Fig. 4Fig. 4
- eine Explosionsansicht einer erfindungsgemäßen Gaszuführungseinrichtung;an exploded view of a gas supply device according to the invention;
- Fig. 5Fig. 5
- eine Draufsicht auf eine erfindungsgemäße Gaszuführungseinrichtung mit Zuführungsleitungen; unda plan view of a gas supply device according to the invention with supply lines; and
- Fig. 6Fig. 6
- eine Draufsicht von oben auf eine erfindungsgemäße Gaszuführungseinrichtung.a top view of a gas supply device according to the invention.
Dabei kann das gasförmige Medium über eine Vielzahl von Austrittsöffnungen 15 nach außen austreten und auf diese Weise die Gebinde beaufschlagen. Durch die erfindungsgemäße Verengung des Strömungskanals im Inneren der Gaszuführungseinrichtung wird erreicht, dass das gasförmige Medium gleichmäßig über alle Austrittsöffnungen 12 austritt.In this case, the gaseous medium can escape via a plurality of
Diese einzelnen Austrittsöffnungen 15 sind in einer Austrittsfläche 12 gebildet. Auf der Rückseite der Gaszuführungseinrichtung ist eine weitere Austrittsfläche 13 gebildet, auf der ebenfalls eine Vielzahl von Austrittsöffnungen 15 angeordnet ist. Diese beiden Austrittsflächen 12, 13 sowie Ränder 22 und Seitenränder 23,25 und ein (nicht gezeigter) Bodenrand bilden insgesamt einen Raum, der mit Ausnahme der Austrittsöffnungen 15 geschlossen ist, sodass das über die Gaszuführungseinrichtungen 6 und 8 zugeführte Medium nur über die Austrittsöffnungen 15 an den beiden Austrittsflächen 12 und 13 austreten kann.These
Die Bezugszeichen 27 und 29 beziehen sich auf Gasleiteinrichtungen, welche dazu dienen, dass das gasförmige Medium im Inneren der Gaszuführungseinrichtung umgelenkt wird und nach Verlassen dieser Gaszuführungseinrichtung im Wesentlichen in der Richtung L oder entgegengesetzt hierzu strömt. Durch die Anordnung der drei Gasleiteinrichtungen 27 und 29 kann das Gas (bzw. die Luft) auch über die gesamte Höhe H der Vorrichtung verteilt werden. Entsprechende Gasleiteinrichtungen befinden sich auch in der Seitenwand 38, dort jedoch in
Das Bezugszeichen 18 bezieht sich auf eine gasdichte Trennwand, die im zusammengebauten Zustand zwischen den beiden Seitenteilen 36 und 38 angeordnet ist. Dabei ist diese gasdichte Trennwand 18 derart angeordnet, dass sie bei der in
Die Bezugszeichen 14 und 16 beziehen sich auf die beiden Strömungskammern, die zwischen der Trennwand 18 einerseits und den beiden Seitenteilen 36 und 38 andererseits gebildet werden. Durch die erwähnte diagonale Anordnung der Trennwand sind die beiden Strömungskammern symmetrisch zueinander ausgebildet.The reference numerals 14 and 16 refer to the two flow chambers, which are formed between the
Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, sofern sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.All disclosed in the application documents features are claimed as essential to the invention, provided they are new individually or in combination over the prior art.
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007049441A DE102007049441A1 (en) | 2007-10-16 | 2007-10-16 | shrink tunnel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2050676A1 true EP2050676A1 (en) | 2009-04-22 |
EP2050676B1 EP2050676B1 (en) | 2011-11-23 |
Family
ID=39597917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20080166622 Expired - Fee Related EP2050676B1 (en) | 2007-10-16 | 2008-10-15 | Shrink tunnel |
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EP (1) | EP2050676B1 (en) |
DE (2) | DE102007049441A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2767478B1 (en) | 2013-02-14 | 2016-08-03 | Krones Aktiengesellschaft | Shrinking device with walls built from a plurality of modules |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009044465A1 (en) * | 2009-11-09 | 2011-05-12 | Krones Ag | shrink tunnel |
DE102010000192A1 (en) * | 2010-01-26 | 2011-07-28 | Krones Ag, 93073 | shrink tunnel |
DE102011052353A1 (en) | 2011-08-02 | 2013-02-07 | Krones Aktiengesellschaft | shrink tunnel |
DE102011054780A1 (en) * | 2011-10-25 | 2013-04-25 | Krones Aktiengesellschaft | shrink tunnel |
DE102016203435A1 (en) | 2016-03-02 | 2017-09-07 | Krones Aktiengesellschaft | Section of a packaging line for beverage containers and procedures for handling beverage containers during their transport along a packaging line |
DE102017119145A1 (en) | 2017-08-22 | 2019-02-28 | Krones Aktiengesellschaft | Shrinking device and method for sucking air from an interior of a shrinking device |
DE102017215414A1 (en) | 2017-09-04 | 2019-03-07 | Krones Aktiengesellschaft | Shaft wall, shrinking device and method for producing a shaft wall for a shrinking device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2002786B1 (en) * | 1970-01-22 | 1970-11-12 | Keller & Co Masch C | Shrink film heater |
US4597247A (en) * | 1985-10-15 | 1986-07-01 | The Mead Corporation | Method and apparatus for applying controlled heat to a group of articles disposed within a shrink film wrapper |
WO2002036436A1 (en) | 2000-11-01 | 2002-05-10 | Claude Andrew Neagle | Adaptable packaging machine heat shrink tunnel |
US20040231301A1 (en) * | 2003-05-23 | 2004-11-25 | Vandertuin Bradley Jon | Heat tunnel for film shrinking |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3378989A (en) * | 1965-02-24 | 1968-04-23 | Doughboy Ind Inc | Packaging machinery |
DE2550036A1 (en) * | 1975-11-07 | 1977-05-18 | Kleve Masch & Stahlbau | SHRINKING DEVICE |
DE2804941A1 (en) * | 1978-02-06 | 1979-08-16 | Msk Verpackung Syst Gmbh | SHRINKING DEVICE FOR SHRINKING IN ACCESSORIES |
-
2007
- 2007-10-16 DE DE102007049441A patent/DE102007049441A1/en not_active Withdrawn
- 2007-10-16 DE DE202007018402U patent/DE202007018402U1/en not_active Expired - Lifetime
-
2008
- 2008-10-15 EP EP20080166622 patent/EP2050676B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2002786B1 (en) * | 1970-01-22 | 1970-11-12 | Keller & Co Masch C | Shrink film heater |
US4597247A (en) * | 1985-10-15 | 1986-07-01 | The Mead Corporation | Method and apparatus for applying controlled heat to a group of articles disposed within a shrink film wrapper |
WO2002036436A1 (en) | 2000-11-01 | 2002-05-10 | Claude Andrew Neagle | Adaptable packaging machine heat shrink tunnel |
US20040231301A1 (en) * | 2003-05-23 | 2004-11-25 | Vandertuin Bradley Jon | Heat tunnel for film shrinking |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2767478B1 (en) | 2013-02-14 | 2016-08-03 | Krones Aktiengesellschaft | Shrinking device with walls built from a plurality of modules |
EP2767478B2 (en) † | 2013-02-14 | 2020-01-08 | Krones Aktiengesellschaft | Shrinking device with walls built from a plurality of modules |
Also Published As
Publication number | Publication date |
---|---|
DE102007049441A1 (en) | 2009-04-23 |
DE202007018402U1 (en) | 2008-07-10 |
EP2050676B1 (en) | 2011-11-23 |
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