EP1935791B1 - Machine and method for shrinking a heat-shrink foil on products to be packaged. - Google Patents

Machine and method for shrinking a heat-shrink foil on products to be packaged. Download PDF

Info

Publication number
EP1935791B1
EP1935791B1 EP07021763A EP07021763A EP1935791B1 EP 1935791 B1 EP1935791 B1 EP 1935791B1 EP 07021763 A EP07021763 A EP 07021763A EP 07021763 A EP07021763 A EP 07021763A EP 1935791 B1 EP1935791 B1 EP 1935791B1
Authority
EP
European Patent Office
Prior art keywords
hood
packaged goods
shrink
conveyor belt
type shrink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07021763A
Other languages
German (de)
French (fr)
Other versions
EP1935791A1 (en
Inventor
Stefan Elsperger
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.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP1935791A1 publication Critical patent/EP1935791A1/en
Application granted granted Critical
Publication of EP1935791B1 publication Critical patent/EP1935791B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • B65B53/066—Mobile frames, hoods, posts or the like

Definitions

  • the invention relates to a machine for shrinking shrink film on packaged goods according to the preamble of claim 1, and to a corresponding method.
  • Such machines are for example from the EP 1 288 129 known. It describes a shrink tunnel in which packaged goods, such as containers with bottles, cans or the like, are guided on a conveyor belt through a tunnel. In the tunnel, hot air blowers ensure that the shrink film enveloping the packaged goods is heated and shrinks onto the pack.
  • these known shrink tunnel have the disadvantage that they are relatively long and relatively high due to the movement of the packaged goods in the tunnel, as well as the design of the tunnel for packaged goods of various sizes. Consequently, the tunnel volume is relatively large. Therefore, much of the energy produced by the heat guns is lost by having to heat the entire tunnel and having relatively large infeed and outfeed openings.
  • hood shrinkers which put the packaged goods on the conveyor, in particular put it over individually, and then along a part of the length in the conveying direction with the packaged together, the volume to be heated is reduced, and thus reduces the heat energy losses. This effect can be further improved if, depending on the packaged goods, appropriately adapted hood headers are used.
  • the machine has an additional heating means, in particular a hot air blower, under the conveyor.
  • a hot air blower under the conveyor.
  • the hood shrinker comprises an upwardly closed hood. This ensures that over the entire section, during which the hood shrink is placed over the packaged goods, heat losses are prevented upwards.
  • the hood shrinker completely overwhelm the packaged.
  • a uniform heating of the shrink film allows, resulting in a controlled shrinkage of the film.
  • printed shrink films can thus be achieved optically good results.
  • the hood shrinker in the side wall of the hood can have nozzles for blowing warm air.
  • the container wrapped with the shrink film with no film on two sides first.
  • the uncovered pages are also called foil eyes. If hot air is blown in this area intensively, the laterally protruding film contracts very strongly here and partially covers these sides of the container as well.
  • the nozzles in the side wall allow a targeted blowing hot air into the film eye, in particular There is no wind, as in the known shrink tunnels, which leads to an inaccurate shrinkage result.
  • the machine may comprise a conveyor belt, which is designed so that it moves with the speed of the conveyor and on the hood of the shrinker can be coupled.
  • a conveyor belt By providing the conveyor belt, the synchronous co-movement of the hood shrinker with the conveyor belt is ensured in a simple manner. Due to the additional possibility of coupling the hood shrink, it is possible that only hood shrinkers are used when packaged goods are transported on the conveyor.
  • the machine may preferably have a control cam, in particular a slotted guide, for specifying the path of movement of the hood shrinker, including lowering in the direction of packaged goods, parallel movement with the packaged goods and lifting for removal of packaged goods of the hood shrinker. Thanks to the cam, the movement of the hood shrinkers in the plane perpendicular to the conveying plane can be realized so that a jerk and shock-free movement of the hood shrinkage is enabled, which also leads to a uniform heating of the shrink film.
  • a control cam in particular a slotted guide
  • a flap on the additional heating means which is designed so that it is opened by the lowered hood shrink, in particular via cams. This ensures that heat is only supplied from below when there is really a packaged product above the additional heating medium. This further improves the energy balance of the machine.
  • the machine may comprise a plurality of hood shrinkers, which are arranged in a row, so that successive packaged goods are überstülpbar.
  • hood shrinkers which are arranged in a row, so that successive packaged goods are überstülpbar.
  • a high throughput of the machine can be ensured without giving up the energy advantage of the moving hood shrinkers.
  • the machine may have a second conveyor belt whose speed is faster than that of the first conveyor belt, in particular, and which serves for the return transport of the at least one hood shrinker after shrinking the shrink film onto the packaged goods.
  • the invention further relates to a method for shrinking shrink film on packaged goods according to the features of claim 11.
  • This method can, as in the apparatus according to claim 1, energy losses, such as occur in known shrink tunnels due to the size of the tunnel, reduced become.
  • the hood shrinker completely overwhelm the packaged. This allows the most balanced possible heating of the shrink film.
  • the hood shrinker can be closed upwards. As a result, energy losses are avoided by rising heat.
  • the hood-type shrinker can be coupled onto a conveyor belt on the partial section, wherein the conveyor belt moves at the same speed as the conveyor. This makes it possible for a hood shrinker to be used only when a packaged item is being transported on the conveyor. By providing the conveyor belt synchronous Mitbelie is realized at the same time with simple means.
  • the hood can be moved by means of a control cam, in particular a control link on the article and put the packaged, then moved after slipping parallel to the packaged and moved back after shrinking from the packaged. Thanks to the cam, the movement of the hood shrinkers in the plane perpendicular to the conveying plane can be realized so that a jerk and shock-free movement of the hood shrinkage is enabled, which also leads to a uniform heating of the shrink film.
  • the packaged goods additional heat is supplied from below.
  • a film is placed around the packaged goods, in particular a container, which overlaps under the container.
  • This has the advantage that the connection seam is not visible to the consumer.
  • the heating means under the packaged goods can thus Container overlaps.
  • This has the advantage that the connection seam is not visible to the consumer.
  • the hood shrinker in the slipped state in particular via cams, open a flap under the conveyor, so that the heat can be supplied from below.
  • heat is only supplied from below, even if just a packaged goods is above the flap, this leads to further energy savings.
  • the hood shrinker after shrinking over a second conveyor belt in particular faster than the first conveyor belt to the beginning of the first conveyor belt are returned.
  • the machine running to install additional hood shrink on the second conveyor belt so as to increase the throughput, or to prepare the machine for a new product.
  • a high throughput is realized with a few hood shrinkers by the faster return transport hood hoods on the second conveyor belt.
  • the packaged goods in particular the film eye
  • nozzles in the side wall of the hood as uniform as possible heating of the film can be ensured and also in the case of blowing into the film eye, the increased shrinkage of the film in this area be guaranteed, so that the film can create the container.
  • the hood and packaged goods have no relative movement to each other, occurs no wind, which deflects the hot air and leads to poor shrinkage results in the film eye.
  • a plurality of hood shrinkers can be used successively, in order to thus pack a plurality of successive packaged goods.
  • a high throughput is guaranteed.
  • Fig. 1 shows a container 1 of several bottles 3, 5, which is partially covered with a shrink film 7.
  • This in Fig. 1 1 is an example of a packaged product which is packaged in a shrink-wrap shrinking machine according to the invention as explained in connection with the following figures.
  • a shrink film of predetermined length adapted to the container, so applied to the bottles 3, 5, that the two ends 9 and 11 below the bottles 3, 5 intersect or overlap surface.
  • the resulting from the wrapping with the shrink film 7 openings on the side of the container 1 is called foil eyes.
  • shrink film 7 Before shrinking the shrink film 7 loosely and usually holds the bottles 3, 5 not yet together. After shrinking the shrink film 7 fits tightly against the bottles 3, 5 and also closes, at least partially, the film eyes. Usually, when shrinking, the two ends 9, 11 of the shrink film 7 are welded together.
  • the container has 1 bottles. Cans or any other containers or articles could just as well be packed.
  • the number of vessels in the container 1 is arbitrary.
  • the individual vessels could also be arranged in a box or carton, which is then enveloped by the shrink film 7 together with the vessels.
  • an already prefabricated sleeve made of shrink film can be placed around the bottles 3.5 as well.
  • the overlapping area can also be another location. He However, it is preferably below the bottles, because then the interface is not visible because of the bottles standing thereon.
  • Fig. 2 shows a side view of an embodiment of a machine for shrinking shrink film on packaged goods, in particular for packaging of containers, according to the invention.
  • Fig. 2 shows six containers 1a to 1f, for example, containers, as in Fig. 1 shown. Regarding the characteristics and characteristics of the container is on the description of the FIG. 1 directed.
  • the enveloped with shrink film 7 container 1 are transported by a conveyor 21 in the direction of arrow F.
  • the conveyor 21 shown in the embodiment comprises a conveyor belt 23, which is deflected at the beginning and end respectively by rollers 25.
  • the conveyor belt 27 is in contrast to the conveyor 21 is not deflected in the plane, but perpendicular thereto, as later in connection with the Fig. 3 becomes clear, with other arrangements are also possible.
  • Four hood shrinkers 29a, 29b, 29c and 29d are coupled to this conveyor belt 27.
  • the number of hood headers 29a, 29b, 29c and 29d is only exemplary here.
  • the shrink-wrapping machine has at least one hood shrinker 29.
  • the hood shrinkers 29a, 29b, 29c and 29d shown here all have the same shape, which is additionally adapted to the shape of the container 1. If different containers with different shapes are conveyed on the conveyor 21, then hood shrinkers of different shape can be coupled to the conveyor belt 27.
  • the conveyor belt 27 moves at substantially the same speed as the conveyor 21 in the direction of the arrow F, and accordingly takes along the coupled-hood hoods 29a, 29b, 29c and 29d, which thus in synchronism with the conveyor belt 23 in the arrow direction.
  • a control cam 31 such as a slotted guide, the hood shrinkers 29a, 29b, 29c, 29d are moved according to a predetermined path not only in the conveying direction, but also perpendicular to the conveying plane.
  • the control cam 31 thus enables lowering of the hood shrinkers 29a, 29b, 29c and 29d during the forward movement, here in the area between hood shrinkers 29a and 29b, so that in the lowered area - at the height of the hood shrinker 29b - the hood shrinkers the container 1c slips over.
  • the hood shrinker 29b the container 1c completely over, depending on how the shrink film 7 is to be shrunk, but it may also be sufficient, the container only partially slipping over.
  • the hood shrinkers 29b and 29c the hood shrinkers move in a slipped-over state with the containers 1c and 1d located under the hoods synchronously with each other.
  • the hood shrinkers are then lifted again and moved away from the containers 1d and 1e.
  • a detection means 33 in particular a sensor, for example an optical light barrier, is provided.
  • This sensor 33 detects a passing container, eg container 1a, and outputs a corresponding signal to a control unit 35 from. Then one will Hood shrinkers 29a, 29b, 29c, 29d coupled to the conveyor belt 27 at the correct time.
  • the machine for shrinking shrink film 7 on packaged goods here on a container 1, a heating means 37, for example a hot air blower, below the conveyor belt 23. It can be arranged in an open-topped housing box. Heat is supplied to the bottom of the containers 1 a to 1 f with this heating means 37, so that in particular in the overlapping area 9, 11 of the shrink film 7 (see FIG Fig. 1 ) a welding of the ends of the film and beyond an additional shrinkage may occur.
  • flaps 39 close the heating means 37 from. Only when a hood shrinker 29a, 29b, 29c, 29d in the lowered state (as shown by hood shrinker 29b, 29c in Fig.
  • Fig. 3 now shows the already in Fig. 2 illustrated machine for shrinking shrink film on packaged goods schematically in a plan view.
  • hood shrinkers for example in case of defect, and / or add additional hood shrinkers to increase the throughput of the machine and / or replace the existing hood shrinkers with other hood shrinkers if packages of a different shape are to be packaged , If as few hood shrinkers are to be used, according to the invention the transport speed of the second conveyor belt 43 is greater than that of the first conveyor belt 27.
  • Fig. 4 shows an embodiment of a hood shrinker 51, as shown in the in the Fig. 2 and 3 shown machine used - referred to as hood shrinkers 29a to 29d and 45a to 45g.
  • the shape of the hood 53 is chosen so that it corresponds as possible in the interior of the shape of the container 1, with appropriately selected spaces must be present so that warm air can circulate. Since the shrinkage of the film 7 to the container 1, see Fig. 1 , takes place with the help of heat, a hood shrink 51 also has a heating means 55, in particular a heater, for example with electric heating rods with fan motor, on. The fact that each hood shrink 51 has its own heat source simplifies the construction of the machine for shrinking.
  • Fig. 5 shows a cross section of the hood shrinker 51 of FIG. 4 , The cut was carried out in the conveying direction F perpendicular to the conveying plane. It can be seen inside the container 1 with the bottles 3, 5 and the shrink film 7, the ends 9, 11 overlap under the bottles 3, 5. The hood shrinker 51 completely invades the container 1.
  • the hood 53 has a channel 55 along which warm air is supplied from the heater 55 with a blower 59 via nozzles 61 on the side surfaces and the upper surface of the shrink film 7.
  • the nozzles 61 could be designed to be controllable or adjustable according to a variant with a variable cross section.
  • Fig. 6 shows a further cross-sectional view of the hood shrink 51, but now in a sectional plane perpendicular to the conveying direction and perpendicular to the conveying plane.
  • the structure of the hood shrinker 51 is substantially the same as in FIG Fig. 5 illustrated and explained.
  • the same reference numerals in this case mean corresponding elements, to the description of which reference is made above.
  • the nozzles 61 are evenly distributed in both directions. However, it is possible in the region of the film eyes 63, 65, the nozzle 61st to rearrange in order to further improve the shrinkage result.
  • the volume of the interior of the hood 53 is only slightly larger than the volume of the container 1, the amount of air to be heated is low compared to the known shrink tunnels. Thus, unnecessary energy losses can be avoided. This is further enhanced by the fact that the hood preferably shields the warmed up space not only upwards, but also all around, ie the heat losses are minimized.
  • hood shrinkers driving the hood shrinkers with the containers allows the air to be optimally blown to the side of the film. This is due to the fact that the package does not pass the nozzle rows as in a shrink tunnel but remains stationary with respect to the nozzles, i. there is no relative movement in the conveying direction. Thus, no wind can occur, which can shrink the lateral film projection irregularly in the known shrink tunnels. Thus, an improved shrinkage result is achieved in the region of the film eye.
  • the sensor 33 outputs a signal to the control unit 35, the then a hood shrinker, 29a, coupled onto the conveyor belt 27 so that hood shrinker 29a and container 1b synchronously in the direction of travel, see arrow F, are moved.
  • the hood shrinker 29a then moves along the control cam 31, for example realized by a control link, and is lowered so that it at the level of container 1c this slips over (at the height of the hood shrinker 29b). In this embodiment, there is a complete slipping over.
  • hot air from the heating means 37 can also be supplied from below.
  • flaps 39 open below the conveyor belt 23. This can happen, for example, when driving over cams 41, 41 'by the hood shrinker 29b, 29c.
  • the ends 9, 11 of the shrink film 7, see Fig. 1 welded together and additionally shrunk.
  • the hood shrinker 29 d After the shrinking process, at the height of the hood shrinker 29 d, the hood shrinker moves away from the container 1 and is decoupled from the conveyor belt 27 at the height of the position B. Thus, a hood shrinker ran a part of the length of the packaged goods, here the container 1, in the conveying direction. The container 1f with the shrunk-on film jacket is transported away from the conveyor belt 23.
  • the decoupled from the conveyor belt 27 hood shrink then from the second conveyor belt 43 again, especially at an increased speed, transported back. There he can then, if necessary, be cached before he comes back to use.
  • hood shrinkers are used to make the throughput of the machine can be correspondingly high.
  • the hood shrinkers could be permanently coupled to their driving conveyor belt or the like, ie they would then travel at a certain mutual pitch in synchrony with the speed of the packs on a closed path.
  • a circular orbit could also be chosen, the containers being carried along synchronously, at least in sections, on a circular sector. This can be realized with relatively little effort by a carousel carrying several hood shrinkers on its periphery. Again, a rigid coupling of the hood shrinkers on the carousel is conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

The scanning system comprises at least one scanning sensor (1) with at least one fluid-mounted light transport module (2) and a bearing section (3) located in a bearing fissure (7). There is a device for mounting the light transport module such that the axle of the cylindrical outer wall is movable axially as well as rotatably. Stemming from the inner chamber (8) of the light transport module is a light source emitting primary light in an axial direction to a primary light exit position (12a, 12b) from the object?s surface (13, 14). Secondary light is reflected in the inner chamber of the light transport module to an axial direction from a secondary entry position (16a, 16b) to a secondary light exit position.

Description

Die Erfindung betrifft eine Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut gemäß dem Oberbegriff des Anspruchs 1, sowie ein entsprechendes Verfahren.The invention relates to a machine for shrinking shrink film on packaged goods according to the preamble of claim 1, and to a corresponding method.

Solche Maschinen sind beispielsweise aus der EP 1 288 129 bekannt. Darin wird ein Schrumpftunnel beschrieben, in dem Packgut, wie beispielsweise Gebinde mit Flaschen, Dosen oder Ähnlichem, auf einem Förderband durch einen Tunnel geführt werden. In dem Tunnel sorgen Heißluftgebläse dafür, dass die das Packgut umhüllende Schrumpffolie erhitzt wird und auf das Gebinde schrumpft. Diese bekannten Schrumpftunnel haben jedoch den Nachteil, dass sie aufgrund der Fortbewegung des Packguts im Tunnel, sowie der Auslegung des Tunnels für Packgüter verschiedener Größen, relativ lang und relativ hoch sind. Folglich ist das Tunnelvolumen relativ groß. Daher geht ein großer Teil der durch die Wärmegebläse produzierten Energie dadurch verloren, dass der gesamte Tunnel erhitzt werden muss und verhältnismäßig große Ein- und Ausführöffnungen besitzt.Such machines are for example from the EP 1 288 129 known. It describes a shrink tunnel in which packaged goods, such as containers with bottles, cans or the like, are guided on a conveyor belt through a tunnel. In the tunnel, hot air blowers ensure that the shrink film enveloping the packaged goods is heated and shrinks onto the pack. However, these known shrink tunnel have the disadvantage that they are relatively long and relatively high due to the movement of the packaged goods in the tunnel, as well as the design of the tunnel for packaged goods of various sizes. Consequently, the tunnel volume is relatively large. Therefore, much of the energy produced by the heat guns is lost by having to heat the entire tunnel and having relatively large infeed and outfeed openings.

Aus der US 4228345 ist eine Maschine zum Aufschrumpfen von Schrumpffolienschläuchen auf Packgut bekannt. Dabei wird ein auf Infrarotstrahlen basierendes Ofensystem mit einem beweglichen Ofengehäuse, welches sich in Laufrichtung eines Transportbandes mitbewegen kann, beschrieben.From the US 4228345 is a machine for shrinking shrink-film hoses on packaged known. In this case, an infrared ray-based furnace system with a movable furnace housing, which can move in the running direction of a conveyor belt is described.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut sowie ein entsprechendes Verfahren bereitzustellen, bei dem der Schrumpfvorgang mit weniger Energieverlusten durchgeführt werden kann.It is therefore an object of the present invention to provide a machine for shrinking shrink film on packaged goods and a corresponding method in which the shrinking process can be carried out with less energy losses.

Diese Aufgabe wird mit der Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut gemäß Anspruch 1 gelöst.This object is achieved with the machine for shrinking shrink film on packaged goods according to claim 1.

Durch die Bereitstellung von Haubenschrumpfern, die das Packgut auf dem Förderer überstülpen, insbesondere individuell überstülpen, und dann eine Teilstrecke lang in Förderrichtung mit dem Packgut zusammen mitbewegt werden, wird das aufzuwärmende Volumen verringert, und somit die Wärmeenergieverluste verringert. Dieser Effekt kann noch weiter verbessert werden, wenn je nach Packgut entsprechend angepasste Haubenschrumpfer verwendet werden.By providing hood shrinkers, which put the packaged goods on the conveyor, in particular put it over individually, and then along a part of the length in the conveying direction with the packaged together, the volume to be heated is reduced, and thus reduces the heat energy losses. This effect can be further improved if, depending on the packaged goods, appropriately adapted hood headers are used.

Entsprechend der Erfindung weist die Maschine ein zusätzliches Heizmittel, insbesondere ein Heißluftgebläse, unter dem Förderer auf. Üblicherweise befindet sich der Überlappungsbereich der Schrumpffolie, mit der das Packgut, insbesondere das Gebinde, umschlagen wurde, unter dem Packgut. Dann bleibt die dickere Naht einem Verbraucher unsichtbar. Durch das Bereitstellen des Heißluftgebläses unter dem Förderer kann in einem Durchgang die Verschweißung der Nahtstelle, als auch die Schrumpfung insgesamt erfolgen.According to the invention, the machine has an additional heating means, in particular a hot air blower, under the conveyor. Usually, the overlapping region of the shrink film, with which the packaged goods, in particular the container, was turned over, under the packaged goods. Then the thicker seam remains invisible to a consumer. By providing the hot air blower under the conveyor, the welding of the seam as well as the shrinkage can take place in one go.

Vorteilhafterweise umfasst der Haubenschrumpfer eine nach oben geschlossene Haube. Somit wird gewährleistet, dass über die ganze Teilstrecke, während der der Haubenschrumpfer über das Packgut gestülpt ist, Wärmeverluste nach oben verhindert werden.Advantageously, the hood shrinker comprises an upwardly closed hood. This ensures that over the entire section, during which the hood shrink is placed over the packaged goods, heat losses are prevented upwards.

Bevorzugt kann der Haubenschrumpfer das Packgut vollständig überstülpen. Durch das vollständige Überstülpen werden Energieverluste zur Seite hin verhindert und gleichzeitig eine gleichmäßige Erwärmung der Schrumpffolie ermöglicht, was zu einem kontrollierten Schrumpfen der Folie führt. In sbesondere bei bedruckten Schrumpffolien können damit auch optisch gute Ergebnisse erzielt werden.Preferably, the hood shrinker completely overwhelm the packaged. By completely slipping over energy losses are prevented to the side and at the same time a uniform heating of the shrink film allows, resulting in a controlled shrinkage of the film. In particular, in printed shrink films can thus be achieved optically good results.

Gemäß einer bevorzugten Ausführungsform kann der Haubenschrumpfer in der Seitenwand der Haube Düsen zum Einblasen von warmer Luft aufweisen. Üblicherweise wird beim Verpacken von Gebinden, beispielsweise ein Gebinde mit Flaschen, das Gebinde mit der Schrumpffolie eingeschlagen, wobei auf zwei Seiten zunächst keine Folie anliegt. Die nicht bedeckten Seiten werden auch Folienaugen genannt. Wird in diesem Bereich verstärkt Warmluft eingeblasen, so zieht sich hier die seitlich überstehende Folie sehr stark zusammen und bedeckt teilweise auch diese Seiten des Gebindes. Somit ermöglichen die Düsen in der Seitenwand ein gezieltes Einblasen von Warmluft in das Folienauge, insbesondere entsteht kein Fahrtwind, wie bei den bekannten Schrumpftunneln, der zu einem ungenauen Schrumpfergebnis führt.According to a preferred embodiment, the hood shrinker in the side wall of the hood can have nozzles for blowing warm air. Usually, when packaging containers, for example, a container with bottles, the container wrapped with the shrink film, with no film on two sides first. The uncovered pages are also called foil eyes. If hot air is blown in this area intensively, the laterally protruding film contracts very strongly here and partially covers these sides of the container as well. Thus, the nozzles in the side wall allow a targeted blowing hot air into the film eye, in particular There is no wind, as in the known shrink tunnels, which leads to an inaccurate shrinkage result.

Vorteilhafterweise kann die Maschine ein Transportband aufweisen, das so ausgebildet ist, dass es sich mit der Geschwindigkeit des Förderers mitbewegt und auf das der Haubenschrumpfer aufkoppelbar ist. Durch das Bereitstellen des Transportbandes wird in einfacher Weise die synchrone Mitbewegung des Haubenschrumpfers mit dem Förderband gewährleistet. Durch die zusätzliche Möglichkeit des Aufkoppelns des Haubenschrumpfers wird ermöglicht, dass nur dann Haubenschrumpfer zum Einsatz kommen, wenn Packgut auf dem Förderer transportiert wird.Advantageously, the machine may comprise a conveyor belt, which is designed so that it moves with the speed of the conveyor and on the hood of the shrinker can be coupled. By providing the conveyor belt, the synchronous co-movement of the hood shrinker with the conveyor belt is ensured in a simple manner. Due to the additional possibility of coupling the hood shrink, it is possible that only hood shrinkers are used when packaged goods are transported on the conveyor.

Bevorzugt kann die Maschine eine Steuerkurve, insbesondere eine Kulissenführung, zum Vorgeben der Bewegungsbahn des Haubenschrumpfers, einschließlich dem Absenken in Richtung Packgut, dem Parallelfahren mit dem Packgut und dem Anheben zum Entfernen von Packgut des Haubenschrumpfers aufweisen. Dank der Steuerkurve kann die Bewegung der Haubenschrumpfer in der Ebene senkrecht zur Förderebene so realisiert werden, dass eine ruck- und stoßfreie Bewegung des Haubenschrumpfes ermöglicht wird, was gleichzeitig zu einer gleichmäßigen Erwärmung der Schrumpffolie führt.The machine may preferably have a control cam, in particular a slotted guide, for specifying the path of movement of the hood shrinker, including lowering in the direction of packaged goods, parallel movement with the packaged goods and lifting for removal of packaged goods of the hood shrinker. Thanks to the cam, the movement of the hood shrinkers in the plane perpendicular to the conveying plane can be realized so that a jerk and shock-free movement of the hood shrinkage is enabled, which also leads to a uniform heating of the shrink film.

Vorteilhafterweise kann dabei zusätzlich eine Klappe über dem zusätzlichen Heizmittel vorgesehen sein, die so ausgebildet ist, dass sie vom abgesenkten Haubenschrumpfer, insbesondere über Nocken geöffnet wird. Damit wird gewährleistet, dass nur dann Wärme von unten zugeführt wird, wenn sich über dem zusätzlichen Heizmittel auch wirklich ein Packgut befindet. Dies verbessert weiter die Energiebilanz der Maschine.Advantageously, it may additionally be provided a flap on the additional heating means, which is designed so that it is opened by the lowered hood shrink, in particular via cams. This ensures that heat is only supplied from below when there is really a packaged product above the additional heating medium. This further improves the energy balance of the machine.

Bevorzugt kann die Maschine mehrere Haubenschrumpfer aufweisen, die in einer Reihe angeordnet sind, so dass aufeinander folgende Packgüter überstülpbar sind. Dadurch kann ein hoher Durchsatz der Maschine gewährleistet werden, ohne den Energievorteil der sich mitbewegenden Haubenschrumpfer aufzugeben.Preferably, the machine may comprise a plurality of hood shrinkers, which are arranged in a row, so that successive packaged goods are überstülpbar. As a result, a high throughput of the machine can be ensured without giving up the energy advantage of the moving hood shrinkers.

Gemäß einer weiteren Variante kann die Maschine ein zweites Transportband aufweisen, dessen Geschwindigkeit insbesondere schneller als die des ersten Transportbandes ist, und die zum Rücktransport des mindestens einen Haubenschrumpfers nach dem Aufschrumpfen der Schrumpffolie auf das Packgut dient. Durch das Entkoppeln der Mitbewegung in Förderrichtung und dem Rücktransport wird bei laufender Maschine ermöglicht zusätzliche Haubenschrumpfer am zweiten Transportband anzubringen, um so gegebenenfalls den Durchsatz zu erhöhen, oder um die Maschine auf ein neues Produkt vorzubereiten. Weiterhin wird durch das schnellere Rücktransportieren der Haubenschrumpfer auf dem zweiten Transportband ein hoher Durchsatz mit wenigen Haubenschrumpfern realisiert.According to a further variant, the machine may have a second conveyor belt whose speed is faster than that of the first conveyor belt, in particular, and which serves for the return transport of the at least one hood shrinker after shrinking the shrink film onto the packaged goods. By decoupling the co-movement in the conveying direction and the return transport is possible with the machine running to install additional hood shrink on the second conveyor belt, so as to increase the throughput, or to prepare the machine for a new product. Furthermore, a high throughput is realized with a few hood shrinkers by the faster return transport hood hoods on the second conveyor belt.

Die Erfindung betrifft weiterhin ein Verfahren zum Aufschrumpfen von Schrumpffolie auf Packgut gemäß den Merkmalen des Anspruchs 11. Mit diesem Verfahren lassen sich, wie auch schon bei der Vorrichtung nach Anspruch 1, Energieverluste, wie sie in bekannten Schrumpftunneln aufgrund der Größe des Tunnels auftreten, verringert werden.The invention further relates to a method for shrinking shrink film on packaged goods according to the features of claim 11. With this method can, as in the apparatus according to claim 1, energy losses, such as occur in known shrink tunnels due to the size of the tunnel, reduced become.

Bevorzugt kann der Haubenschrumpfer das Packgut vollständig überstülpen. Dadurch wird eine möglichst ausgeglichene Erwärmung der Schrumpffolie ermöglicht.Preferably, the hood shrinker completely overwhelm the packaged. This allows the most balanced possible heating of the shrink film.

Vorteilhafterweise kann der Haubenschrumpfer nach oben geschlossen sein. Dadurch werden Energieverluste durch aufsteigende Wärme vermieden.Advantageously, the hood shrinker can be closed upwards. As a result, energy losses are avoided by rising heat.

Gemäß einer bevorzugten Ausführungsform kann der Haubenschrumpfer auf der Teilstrecke auf ein Transportband aufgekoppelt werden, wobei sich das Transportband mit der gleichen Geschwindigkeit bewegt wie der Förderer. Somit wird ermöglicht, dass ein Haubenschrumpfer nur dann in Einsatz kommt, wenn auf dem Förderer ein Packgut transportiert wird. Durch das Bereitstellen des Transportbands wird gleichzeitig ein synchrones Mitbewegen mit einfachen Mitteln realisiert.According to a preferred embodiment, the hood-type shrinker can be coupled onto a conveyor belt on the partial section, wherein the conveyor belt moves at the same speed as the conveyor. This makes it possible for a hood shrinker to be used only when a packaged item is being transported on the conveyor. By providing the conveyor belt synchronous Mitbewegen is realized at the same time with simple means.

Vorteilhafterweise kann der Haubenschrumpfer mittels einer Steuerkurve, insbesondere einer Steuerkulisse, auf den Artikel zubewegt werden und das Packgut überstülpen, dann nach dem Überstülpen parallel zum Packgut bewegt werden und nach dem Aufschrumpfen wieder vom Packgut wegbewegt werden. Dank der Steuerkurve kann die Bewegung der Haubenschrumpfer in der Ebene senkrecht zur Förderebene so realisiert werden, dass eine ruck- und stoßfreie Bewegung des Haubenschrumpfes ermöglicht wird, was gleichzeitig zu einer gleichmäßigen Erwärmung der Schrumpffolie führt.Advantageously, the hood can be moved by means of a control cam, in particular a control link on the article and put the packaged, then moved after slipping parallel to the packaged and moved back after shrinking from the packaged. Thanks to the cam, the movement of the hood shrinkers in the plane perpendicular to the conveying plane can be realized so that a jerk and shock-free movement of the hood shrinkage is enabled, which also leads to a uniform heating of the shrink film.

Erfindungsgemäß wird dem Packgut zusätzlich Wärme von unten zugeführt. Üblicherweise wird um das Packgut, insbesondere einem Gebinde, eine Folie gelegt, die unter dem Gebinde überlappt. Dies hat den Vorteil, dass die Verbindungsnaht dem Verbraucher nicht sichtbar ist. Durch das Bereitstellen des Heizmittels unter dem Packgut kann somit Gebinde überlappt. Dies hat den Vorteil, dass die Verbindungsnaht dem Verbraucher nicht sichtbar ist. Durch das Bereitstellen des Heizmittels unter dem Packgut kann somit gleichzeitig mit dem Schrumpfen auch das Verschweißen der beiden Folienenden miteinander realisiert werden.According to the packaged goods, additional heat is supplied from below. Usually, a film is placed around the packaged goods, in particular a container, which overlaps under the container. This has the advantage that the connection seam is not visible to the consumer. By providing the heating means under the packaged goods can thus Container overlaps. This has the advantage that the connection seam is not visible to the consumer. By providing the heating means under the packaged goods, the welding of the two film ends can thus be realized together with the shrinkage at the same time.

Bevorzugt kann der Haubenschrumpfer im übergestülpten Zustand, insbesondere über Nocken, eine Klappe unter dem Förderer öffnen, so dass die Wärme von unten zugeführt werden kann. Somit wird nur dann Wärme von unten zugeführt, wenn sich auch gerade ein Packgut über der Klappe befindet, dies führt zu weiteren Energieeinsparnissen.Preferably, the hood shrinker in the slipped state, in particular via cams, open a flap under the conveyor, so that the heat can be supplied from below. Thus, heat is only supplied from below, even if just a packaged goods is above the flap, this leads to further energy savings.

Bevorzugt kann der Haubenschrumpfer nach dem Aufschrumpfen über ein zweites Transportband insbesondere schneller als mit dem ersten Transportband zum Anfang des ersten Transportbandes zurückgeführt werden. Durch das Entkoppeln der Mitbewegung in Förderrichtung und dem Rücktransport wird bei laufender Maschine ermöglicht zusätzliche Haubenschrumpfer am zweiten Transportband anzubringen, um so gegebenenfalls den Durchsatz zu erhöhen, oder um die Maschine auf ein neues Produkt vorzubereiten. Weiterhin wird durch das schnellere Rücktransportieren der Haubenschrumpfer auf dem zweiten Transportband ein hoher Durchsatz mit wenigen Haubenschrumpfern realisiert.Preferably, the hood shrinker after shrinking over a second conveyor belt in particular faster than the first conveyor belt to the beginning of the first conveyor belt are returned. By decoupling the co-movement in the conveying direction and the return transport is possible with the machine running to install additional hood shrink on the second conveyor belt, so as to increase the throughput, or to prepare the machine for a new product. Furthermore, a high throughput is realized with a few hood shrinkers by the faster return transport hood hoods on the second conveyor belt.

Gemäß einer bevorzugten Ausführungsform kann dem Packgut, insbesondere dem Folienauge, über Düsen in der Seitenwand der Haube Wärme zugeführt werden. Durch das Bereitstellen von Düsen in der Seitenwand der Haube kann eine möglichst gleichmäßige Erwärmung der Folie gewährleistet werden und darüber hinaus im Falle des Einblasens ins Folienauge das verstärkte Schrumpfen der Folie in diesem Bereich gewährleistet werden, so dass sich die Folie um das Gebinde anlegen kann. Dadurch das Haube und Packgut keine Relativbewegung zueinander aufweisen, tritt kein Fahrtwind auf, der die Heißluft ablenkt und zu schlechten Schrumpfergebnissen im Folienauge führt.According to a preferred embodiment, the packaged goods, in particular the film eye, can be supplied with heat via nozzles in the side wall of the hood. By providing nozzles in the side wall of the hood as uniform as possible heating of the film can be ensured and also in the case of blowing into the film eye, the increased shrinkage of the film in this area be guaranteed, so that the film can create the container. Thus, the hood and packaged goods have no relative movement to each other, occurs no wind, which deflects the hot air and leads to poor shrinkage results in the film eye.

Bevorzugt können mehrere Haubenschrumpfer nacheinander zum Einsatz kommen, um somit mehrere aufeinander folgende Packgüter zu verpacken. Somit wird ein hoher Durchsatz gewährleistet.Preferably, a plurality of hood shrinkers can be used successively, in order to thus pack a plurality of successive packaged goods. Thus, a high throughput is guaranteed.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Figuren näher erläutert. Es zeigt die

Fig.
1 beispielhaft ein Gebinde mit noch nicht erwärmter Schrumpffolie,
Fig.
2 eine Seitenansicht einer erfindungsgemäßen Ausführungsform der Maschine zum Aufschrumpfen von Schrumpffolie,
Fig.
3 eine schematische Ansicht von oben dieser Ausführungsform,
Fig.
4 eine dreidimensionale äußere Ansicht eines Haubenschrumpfers, wie er in der erfindungsgemäßen Maschine benutzt wird,
Fig.
5 einen Querschnitt durch den Haubenschrumpfer der Fig. 4, wobei die Schnittebene in der Fahrtrichtung ist, und
Fig.
6 einen Schnitt durch den Haubenschrumpfer der Fig. 4 senkrecht zur Bewegungsrichtung.
The invention will be explained in more detail with reference to an embodiment with reference to the figures. It shows the
FIG.
1 an example of a container with not yet heated shrink film,
FIG.
FIG. 2 is a side view of an embodiment of the invention for shrink-wrap shrinking machine; FIG.
FIG.
3 is a schematic top view of this embodiment,
FIG.
4 is a three-dimensional external view of a hood shrinker as used in the machine according to the invention,
FIG.
5 shows a cross section through the hood shrinker of Fig. 4 , wherein the sectional plane is in the direction of travel, and
FIG.
6 is a section through the hood shrink the Fig. 4 perpendicular to the direction of movement.

Fig. 1 zeigt ein Gebinde 1 aus mehreren Flaschen 3, 5, das mit einer Schrumpffolie 7 teilweise umhüllt ist. Dieses in Fig. 1 dargestellte Gebinde 1 ist ein Beispiel für ein Packgut, das in einer Maschine zum Aufschrumpfen von Schrumpffolie gemäß der Erfindung, wie im Zusammenhang mit den nachstehenden Figuren erläutert, verpackt wird. Fig. 1 shows a container 1 of several bottles 3, 5, which is partially covered with a shrink film 7. This in Fig. 1 1 is an example of a packaged product which is packaged in a shrink-wrap shrinking machine according to the invention as explained in connection with the following figures.

Üblicherweise wird, wie auch in Fig. 1 dargestellt, eine Schrumpffolienbahn vorbestimmter Länge, angepasst an das Gebinde, so um die Flaschen 3, 5 angelegt, dass sich die beiden Enden 9 und 11 unterhalb der Flaschen 3, 5 kreuzen bzw. flächig überlappen. Die durch das Umschlagen mit der Schrumpffolie 7 entstehenden Öffnungen auf der Seite des Gebindes 1 nennt man Folienaugen.Usually, as well as in Fig. 1 represented, a shrink film of predetermined length, adapted to the container, so applied to the bottles 3, 5, that the two ends 9 and 11 below the bottles 3, 5 intersect or overlap surface. The resulting from the wrapping with the shrink film 7 openings on the side of the container 1 is called foil eyes.

Vor dem Schrumpfen liegt die Schrumpffolie 7 locker an und hält üblicherweise die Flaschen 3, 5 noch nicht zusammen. Nach dem Schrumpfen legt sich die Schrumpffolie 7 eng an die Flaschen 3, 5 an und schließt auch, zumindest teilweise, die Folienaugen. Üblicherweise werden beim Schrumpfen auch die beiden Enden 9, 11 der Schrumpffolie 7 miteinander verschweißt.Before shrinking the shrink film 7 loosely and usually holds the bottles 3, 5 not yet together. After shrinking the shrink film 7 fits tightly against the bottles 3, 5 and also closes, at least partially, the film eyes. Usually, when shrinking, the two ends 9, 11 of the shrink film 7 are welded together.

Im dargestellten Beispiel weist das Gebinde 1 Flaschen auf. Genauso gut könnten jedoch auch Dosen oder beliebig andere Gefäße oder Artikel verpackt werden. Auch die Anzahl der Gefäße im Gebinde 1 ist beliebig. Zusätzlich könnten die einzelnen Gefäße auch noch in einem Kasten oder Karton angeordnet sein, der dann zusammen mit den Gefäßen von der Schrumpffolie 7 umhüllt wird.In the example shown, the container has 1 bottles. Cans or any other containers or articles could just as well be packed. The number of vessels in the container 1 is arbitrary. In addition, the individual vessels could also be arranged in a box or carton, which is then enveloped by the shrink film 7 together with the vessels.

Anstatt eine Schrumpffolienbahn 7 um die Flaschen 3, 5 zu legen, kann genauso eine schon vorgefertigte Hülse aus Schrumpffolie um die Flaschen 3,5 gelegt werden. Auch der Überlappungsbereich kann einer anderen Stelle sein. Er befindet sich jedoch bevorzugt unterhalb der Flaschen, da dann die Nahtstelle wegen der darauf stehenden Flaschen nicht sichtbar ist.Instead of laying a shrink film 7 around the bottles 3, 5, an already prefabricated sleeve made of shrink film can be placed around the bottles 3.5 as well. The overlapping area can also be another location. He However, it is preferably below the bottles, because then the interface is not visible because of the bottles standing thereon.

Fig. 2 zeigt eine Seitenansicht einer Ausführungsform einer Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut, insbesondere zum Verpacken von Gebinden, gemäß der Erfindung. Fig. 2 zeigt sechs Gebinde 1a bis 1f, beispielsweise Gebinde, wie in Fig. 1 dargestellt. Bezüglich der Merkmale und Eigenschaften der Gebinde wird auf die Beschreibung der Figur 1 verwiesen. Fig. 2 shows a side view of an embodiment of a machine for shrinking shrink film on packaged goods, in particular for packaging of containers, according to the invention. Fig. 2 shows six containers 1a to 1f, for example, containers, as in Fig. 1 shown. Regarding the characteristics and characteristics of the container is on the description of the FIG. 1 directed.

Die mit Schrumpffolie 7 umhüllten Gebinde 1 werden von einem Förderer 21 in Pfeilrichtung F transportiert. Der im Ausführungsbeispiel dargestellte Förderer 21 umfasst ein Förderband 23, das am Anfang und Ende jeweils über Rollen 25 umgelenkt wird. Auf einem Teilstück des Förderers - von Position A bis Position B - ist über dem Förderer 21 ein Transportband 27 angeordnet. In dieser Ausführungsform wird das Transportband 27 im Gegensatz zum Förderer 21 nicht in der Zeichenebene umgelenkt, sondern senkrecht dazu, wie später im Zusammenhang mit der Fig. 3 deutlich wird, wobei andere Anordnungen ebenso möglich sind. Auf dieses Transportband 27 sind vier Haubenschrumpfer 29a, 29b, 29c und 29d gekoppelt. Die Anzahl der Haubenschrumpfer 29a, 29b, 29c und 29d ist hier nur beispielhaft. Erfindungsgemäß weist die Maschine zum Aufschrumpfen mindestens jedoch einen Haubenschrumpfer 29 auf. Die hier dargestellten Haubenschrumpfer 29a, 29b, 29c und 29d haben alle die gleiche Form, die zusätzlich der Form der Gebinde 1 angepasst ist. Sollten unterschiedliche Gebinde mit unterschiedlichen Formen auf dem Förderer 21 gefördert werden, so können Haubenschrumpfer unterschiedlicher Form auf das Transportband 27 gekoppelt werden.The enveloped with shrink film 7 container 1 are transported by a conveyor 21 in the direction of arrow F. The conveyor 21 shown in the embodiment comprises a conveyor belt 23, which is deflected at the beginning and end respectively by rollers 25. On a portion of the conveyor - from position A to position B - a conveyor belt 27 is disposed above the conveyor 21. In this embodiment, the conveyor belt 27 is in contrast to the conveyor 21 is not deflected in the plane, but perpendicular thereto, as later in connection with the Fig. 3 becomes clear, with other arrangements are also possible. Four hood shrinkers 29a, 29b, 29c and 29d are coupled to this conveyor belt 27. The number of hood headers 29a, 29b, 29c and 29d is only exemplary here. According to the invention, however, the shrink-wrapping machine has at least one hood shrinker 29. The hood shrinkers 29a, 29b, 29c and 29d shown here all have the same shape, which is additionally adapted to the shape of the container 1. If different containers with different shapes are conveyed on the conveyor 21, then hood shrinkers of different shape can be coupled to the conveyor belt 27.

Das Transportband 27 bewegt sich mit der im Wesentlichen gleichen Geschwindigkeit wie der Förderer 21 in Pfeilrichtung F und nimmt dabei entsprechend die aufgekoppelten Haubenschrumpfer 29a, 29b, 29c und 29d mit, die folglich in Pfeilrichtung synchron mit dem Förderband 23 mit. Dank einer Steuerkurve 31, wie beispielsweise einer Kulissenführung, werden die Haubenschrumpfer 29a, 29b, 29c, 29d entsprechend einer vorbestimmten Bahn nicht nur in Förderrichtung, sondern auch senkrecht zur Förderebene bewegt. Die Steuerkurve 31 ermöglicht somit ein Absenken der Haubenschrumpfer 29a, 29b, 29c und 29d während der Vorwärtsbewegung, hier im Bereich zwischen Haubenschrumpfer 29a und 29b, so dass im abgesenkten Bereich - auf Höhe des Haubenschrumpfers 29b - der Haubenschrumpfer das Gebinde 1c überstülpt.The conveyor belt 27 moves at substantially the same speed as the conveyor 21 in the direction of the arrow F, and accordingly takes along the coupled-hood hoods 29a, 29b, 29c and 29d, which thus in synchronism with the conveyor belt 23 in the arrow direction. Thanks to a control cam 31, such as a slotted guide, the hood shrinkers 29a, 29b, 29c, 29d are moved according to a predetermined path not only in the conveying direction, but also perpendicular to the conveying plane. The control cam 31 thus enables lowering of the hood shrinkers 29a, 29b, 29c and 29d during the forward movement, here in the area between hood shrinkers 29a and 29b, so that in the lowered area - at the height of the hood shrinker 29b - the hood shrinkers the container 1c slips over.

Hier überstülpt der Haubenschrumpfer 29b das Gebinde 1c vollständig, je nachdem, wie die Schrumpffolie 7 aufgeschrumpft werden soll, kann es jedoch auch ausreichend sein, die Gebinde nur teilweises zu Überstülpen. Im Bereich zwischen den Haubenschrumpfern 29b und 29c bewegen sich die Haubenschrumpfer im übergestülpten Zustand mit den sich unter den Hauben befindlichen Gebinden 1c und 1d synchron mit. Im Bereich zwischen dem Haubenschrumpfer 29c und dem Haubenschrumpfer 29d werden die Haubenschrumpfer dann wieder angehoben und von den Gebinden 1d und 1e wegbewegt.Here, the hood shrinker 29b the container 1c completely over, depending on how the shrink film 7 is to be shrunk, but it may also be sufficient, the container only partially slipping over. In the area between the hood shrinkers 29b and 29c, the hood shrinkers move in a slipped-over state with the containers 1c and 1d located under the hoods synchronously with each other. In the area between the hood shrinker 29c and the hood shrinker 29d, the hood shrinkers are then lifted again and moved away from the containers 1d and 1e.

Damit ein Haubenschrumpfer 29a, 29b, 29c und 29d ein sich auf dem Transportband 21 fortbewegendes Gebinde 1a bis 1f überstülpen kann, wird ein Erkennungsmittel 33, insbesondere ein Sensor, beispielsweise eine optische Lichtschranke, bereitgestellt. Dieser Sensor 33 erfasst ein vorbeifahrendes Gebinde, z.B. Gebinde 1a, und gibt ein entsprechendes Signal an eine Steuereinheit 35 ab. Daraufhin wird eine Haubenschrumpfer 29a, 29b, 29c, 29d zum korrekten Zeitpunkt auf das Transportband 27 koppelt.In order for a hood shrinker 29a, 29b, 29c and 29d to be able to push on a container 1a to 1f moving on the conveyor belt 21, a detection means 33, in particular a sensor, for example an optical light barrier, is provided. This sensor 33 detects a passing container, eg container 1a, and outputs a corresponding signal to a control unit 35 from. Then one will Hood shrinkers 29a, 29b, 29c, 29d coupled to the conveyor belt 27 at the correct time.

Zusätzlich, gemäß einer weiteren Variante der Erfindung, weist die Maschine zum Aufschrumpfen von Schrumpffolie 7 auf Packgut, hier auf ein Gebinde 1, ein Heizmittel 37, beispielsweise ein Heißluftgebläse, unterhalb des Förderbands 23 auf. Es kann in einem oben offenen Gehäusekasten angeordnet sein. Mit diesem Heizmittel 37 wird dem Boden der Gebinde 1a bis 1f Wärme zugeführt, so dass insbesondere im Überlappungsbereich 9, 11 der Schrumpffolie 7 (siehe Fig. 1) ein Verschweißen der Enden der Folie und darüber hinaus ein zusätzliches Schrumpfen auftreten kann. Um möglichst energiearm arbeiten zu können, schließen Klappen 39 das Heizmittel 37 ab. Nur wenn ein Haubenschrumpfer 29a, 29b, 29c, 29d im abgesenkten Zustand (wie durch Haubenschrumpfer 29b, 29c in Fig. 2 verkörpert) oberhalb einer Klappe 39 angeordnet ist, wird diese geöffnet. Diesen Zustand ist unterhalb der Haubenschrumpfer 29b und 29c dargestellt. Beispielsweise wird dieses Öffnen über Nocken 41 realisiert, die durch die vorbeifahrenden Haubenschrumpfer heruntergedrückt oder geschwenkt werden, in diesem Fall Nocke 41' und Nocke 41''. Denkbar sind feder- oder gewichtsbelastete Klappen, die selbsttätig in eine Schließposition zurückstellen.In addition, according to a further variant of the invention, the machine for shrinking shrink film 7 on packaged goods, here on a container 1, a heating means 37, for example a hot air blower, below the conveyor belt 23. It can be arranged in an open-topped housing box. Heat is supplied to the bottom of the containers 1 a to 1 f with this heating means 37, so that in particular in the overlapping area 9, 11 of the shrink film 7 (see FIG Fig. 1 ) a welding of the ends of the film and beyond an additional shrinkage may occur. In order to work as low as possible energy, flaps 39 close the heating means 37 from. Only when a hood shrinker 29a, 29b, 29c, 29d in the lowered state (as shown by hood shrinker 29b, 29c in Fig. 2 embodied) is arranged above a flap 39, this is opened. This condition is shown below the hood shrinkers 29b and 29c. For example, this opening is realized via cams 41, which are pressed or pivoted by the passing hood shrinkers, in this case cam 41 'and cam 41''. Conceivable spring or weight loaded flaps, which automatically return to a closed position.

Fig. 3 zeigt nun die schon in Fig. 2 dargestellt Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut schematisch in einer Draufsicht. Man erkennt das Transportband 21, die Gebinde 1a bis 1f, die vier Haubenschrumpfer 29a, 29b, 29c und 29d, die sich zusammen mit den Gebinden 1a bis 1f in Pfeilrichtung fortbewegen, wobei die Haubenschrumpfer 29a bis 29d mit dem Transportband 27 mit gleicher Geschwindigkeit wie das Förderband 23 fortbewegt wird. Fig. 3 now shows the already in Fig. 2 illustrated machine for shrinking shrink film on packaged goods schematically in a plan view. One recognizes the conveyor belt 21, the containers 1a to 1f, the four hood shrinkers 29a, 29b, 29c and 29d, which move together with the containers 1a to 1f in the arrow direction, the hood shrinkers 29a to 29d with the conveyor belt 27 at the same speed as the conveyor belt 23 is moved.

Zusätzlich zu den Elementen der Maschine zum Aufschrumpfen von Schrumpffolie auf Packgut, die schon in Zusammenhang mit der Fig. 2 beschrieben wurden und auf deren Beschreibung nach oben verwiesen wird, zeigt:die Draufsicht ein zweites Transportband 43, das die am Ende des Aufschrumpfvorgangs vom ersten Transportband 27 entkoppelten Haubenschrumpfer 45a bis 45g wieder zurücktransportiert. Vor dem Aufkoppeln auf das erste Transportband 27 können Haubenschrumpfer, hier 45d bis 45g in einer Art Bahnhof 47 zwischengelagert werden.In addition to the elements of the machine for shrink film shrinking on packaged goods, already in connection with the Fig. 2 and their description is referenced above, shows: the top view of a second conveyor belt 43, which transported back at the end of the Aufschrumpfvorgangs from the first conveyor belt 27 hood shrinkers 45a to 45g back. Before coupling onto the first conveyor belt 27 hood shrinkers, here 45d to 45g can be stored in a kind of station 47.

Entlang des zweiten Transportbands 43 kann man Haubenschrumpfer entfernen, beispielsweise bei Defekt, und/oder zusätzliche Haubenschrumpfer hinzuzufügen, um den Durchsatz der Maschine zu erhöhen, und/oder die vorhandenen Haubenschrumpfer durch andere Haubenschrumpfer zu ersetzen, falls Gebinde mit einer anderen Form verpackt werden sollen. Sollen möglichst wenig Haubenschrumpfer eingesetzt werden, ist erfindungsgemäß die Transportgeschwindigkeit des zweiten Transportbandes 43 größer als die des ersten Transportbandes 27.Along the second conveyor belt 43 one can remove hood shrinkers, for example in case of defect, and / or add additional hood shrinkers to increase the throughput of the machine and / or replace the existing hood shrinkers with other hood shrinkers if packages of a different shape are to be packaged , If as few hood shrinkers are to be used, according to the invention the transport speed of the second conveyor belt 43 is greater than that of the first conveyor belt 27.

Fig. 4 zeigt eine Ausführungsform eines Haubenschrumpfers 51, wie er in der in den Fig. 2 und 3 dargestellten Maschine zum Einsatz kommt - als Haubenschrumpfer 29a bis 29d bzw. 45a bis 45g bezeichnet. Die Form der Haube 53 ist so gewählt, dass sie im Innenraum möglichst der Form des Gebindes 1 entspricht, wobei entsprechend gewählte Zwischenräume vorhanden sein müssen, damit warme Luft zirkulieren kann. Da das Schrumpfen der Folie 7 um das Gebinde 1, siehe Fig. 1, mit Hilfe von Wärme erfolgt, weist ein Haubenschrumpfer 51 auch ein Heizmittel 55, insbesondere eine Heizung, z.B. mit elektrischen Heizstäben mit Gebläsemotor, auf. Dadurch, dass jeder Haubenschrumpfer 51 seine eigene Wärmequelle aufweist, vereinfacht sich der Aufbau der Maschine zum Aufschrumpfen. Fig. 4 shows an embodiment of a hood shrinker 51, as shown in the in the Fig. 2 and 3 shown machine used - referred to as hood shrinkers 29a to 29d and 45a to 45g. The shape of the hood 53 is chosen so that it corresponds as possible in the interior of the shape of the container 1, with appropriately selected spaces must be present so that warm air can circulate. Since the shrinkage of the film 7 to the container 1, see Fig. 1 , takes place with the help of heat, a hood shrink 51 also has a heating means 55, in particular a heater, for example with electric heating rods with fan motor, on. The fact that each hood shrink 51 has its own heat source simplifies the construction of the machine for shrinking.

Fig. 5 zeigt einen Querschnitt des Haubenschrumpfers 51 der Figur 4, wobei der Schnitt in Förderrichtung F senkrecht zur Förderebene erfolgte. Man erkennt im Inneren das Gebinde 1 mit den Flaschen 3, 5 und der Schrumpffolie 7, deren Enden 9, 11 unter den Flaschen 3, 5 überlappen. Der Haubenschrumpfer 51 überstülpt das Gebinde 1 vollständig. Fig. 5 shows a cross section of the hood shrinker 51 of FIG. 4 , The cut was carried out in the conveying direction F perpendicular to the conveying plane. It can be seen inside the container 1 with the bottles 3, 5 and the shrink film 7, the ends 9, 11 overlap under the bottles 3, 5. The hood shrinker 51 completely invades the container 1.

Wie man in der Schnittansicht weiter erkennen kann, weist die Haube 53 einen Kanal 55 auf, entlang dessen warme Luft von der Heizung 55 mit einem Gebläses 59 über Düsen 61 auf die Seitenflächen und die obere Fläche der Schrumpffolie 7 zugeführt wird. Die Düsen 61 könnten gemäß einer Variante mit variablem Querschnitt steuer- bzw. einstellbar ausgebildet sein.As can further be seen in the sectional view, the hood 53 has a channel 55 along which warm air is supplied from the heater 55 with a blower 59 via nozzles 61 on the side surfaces and the upper surface of the shrink film 7. The nozzles 61 could be designed to be controllable or adjustable according to a variant with a variable cross section.

Fig. 6 zeigt eine weitere Querschnittsansicht des Haubenschrumpfers 51, nun jedoch in einer Schnittebene senkrecht zur Förderrichtung und senkrecht zur Förderebene. Der Aufbau des Haubenschrumpfers 51 ist im Wesentlichen der gleiche, wie schon in Fig. 5 dargestellt und erläutert. Gleiche Bezugszeichen bedeuten hierbei entsprechende Elemente, auf deren Beschreibung wird nach oben verwiesen. Fig. 6 shows a further cross-sectional view of the hood shrink 51, but now in a sectional plane perpendicular to the conveying direction and perpendicular to the conveying plane. The structure of the hood shrinker 51 is substantially the same as in FIG Fig. 5 illustrated and explained. The same reference numerals in this case mean corresponding elements, to the description of which reference is made above.

In dieser Ansicht erkennt man die schon im Zusammenhang mit der Fig. 1 erwähnten Folienaugen 63 bzw. 65, denen ebenso Heißluft aus den Düsen 61 zugeführt wird. Dies bewirkt, dass die oben und unten zunächst seitlich überstehende Schrumpffolie 7 sich um die Flaschen 3, 5 anlegt und sich so zusammenzieht, dass sich die Folienaugen 63 bzw. 65 zumindest teilweise schließen.In this view one recognizes those already in connection with the Fig. 1 mentioned film eyes 63 and 65, which also hot air from the nozzles 61 is supplied. This causes the top and bottom first laterally protruding shrink film 7 applies to the bottles 3, 5 and contracts so that the film eyes 63 and 65 at least partially close.

In den Schnittansichten der Figuren 5 und 6 sind die Düsen 61 in beiden Richtungen gleichmäßig verteilt. Es ist jedoch möglich, im Bereich der Folienaugen 63, 65 die Düsen 61 anders anzuordnen, um das Schrumpfergebnis weiter zu verbessern.In the sectional views of FIGS. 5 and 6 the nozzles 61 are evenly distributed in both directions. However, it is possible in the region of the film eyes 63, 65, the nozzle 61st to rearrange in order to further improve the shrinkage result.

Mit der dargestellten Maschine lassen sich die folgenden Vorteile erzielen. Dadurch, dass, wie in den Fig. 5 und 6 dargestellt, das Volumen des Innenraums der Haube 53 nur unwesentlich größer ist als das Volumen des Gebindes 1, ist im Vergleich zu den bekannten Schrumpftunneln die zu erwärmende Luftmenge gering. Somit können unnötige Energieverluste vermieden werden. Dies wird noch dadurch verstärkt, dass die Haube bevorzugt den aufgewärmten Raum nicht nur nach oben, sondern auch ringsum abschirmt, d.h. die Wärmeverluste sind minimiert.The following advantages can be achieved with the illustrated machine. Because, as in the FIGS. 5 and 6 shown, the volume of the interior of the hood 53 is only slightly larger than the volume of the container 1, the amount of air to be heated is low compared to the known shrink tunnels. Thus, unnecessary energy losses can be avoided. This is further enhanced by the fact that the hood preferably shields the warmed up space not only upwards, but also all around, ie the heat losses are minimized.

Weiterhin erlaubt es das Mitfahren der Haubenschrumpfer mit den Gebinden, dass die Luft optimal an die seitlichen Folienaugen geblasen wird. Dies liegt daran, dass das Gebinde nicht, wie bei einem Schrumpftunnel an den Düsenreihen vorbeifährt sondern bzgl. der Düsen stationär bleibt, d.h. keine Relativbewegung in Förderrichtung vorliegt. Somit kann kein Fahrtwind auftreten, der bei den bekannten Schrumpftunneln den seitlichen Folienüberstand unregelmäßig schrumpfen lässt. Somit wird ein verbessertes Schrumpfergebnis im Bereich des Folienauges erzielt.Furthermore, driving the hood shrinkers with the containers allows the air to be optimally blown to the side of the film. This is due to the fact that the package does not pass the nozzle rows as in a shrink tunnel but remains stationary with respect to the nozzles, i. there is no relative movement in the conveying direction. Thus, no wind can occur, which can shrink the lateral film projection irregularly in the known shrink tunnels. Thus, an improved shrinkage result is achieved in the region of the film eye.

Nachfolgend wird das erfindungsgemäße Verfahren zum Schrumpfen von Schrumpffolie auf Packgut, insbesondere zum Verpacken von Gebinden 1, wie sie in Fig. 1 dargestellt sind, anhand der oben beschriebenen erfindungsgemäßen Maschine, und somit auch deren Funktionsweise, beschrieben.Hereinafter, the inventive method for shrinking shrink film on packaged goods, in particular for packaging of containers 1, as in Fig. 1 are illustrated, with reference to the machine according to the invention described above, and thus also their operation described.

Zunächst wird ein mit einer Schrumpffolie 7 zumindest teilweise umhülltes Gebinde 1, siehe Fig. 1, von einem Förderer 21, siehe Fig. 2, an einem Sensor 33 vorbeigeführt. Der Sensor 33 gibt ein Signal an die Steuereinheit 35 ab, die daraufhin einen Haubenschrumpfer, 29a, auf das Transportband 27 so aufkoppelt, dass Haubenschrumpfer 29a und Gebinde 1b synchron in Fahrtrichtung, siehe Pfeil F, bewegt werden. Der Haubenschrumpfer 29a bewegt sich dann entlang der Steuerkurve 31, beispielsweise realisiert durch eine Steuerkulisse, fort und wird so abgesenkt, dass er auf Höhe von Gebinde 1c dieses überstülpt (auf Höhe des Haubenschrumpfers 29b). In dieser Ausführungsform liegt ein vollständiges Überstülpen vor. Mit dem Überstülpen beginnt der Schrumpfprozess durch Bereitstellung von Heißluft, die mit Hilfe des Gebläsemotors 59 und der Heizung 55 durch Düsen 61 in der Seitenwand der Haube 53 auf die Schrumpffolie 7 bzw. in das Folienauge 63 bzw. 65 geblasen wird (siehe Figuren 5 und 6).First, a with a shrink film 7 at least partially wrapped container 1, see Fig. 1 , from a conveyor 21, see Fig. 2 , passed by a sensor 33. The sensor 33 outputs a signal to the control unit 35, the then a hood shrinker, 29a, coupled onto the conveyor belt 27 so that hood shrinker 29a and container 1b synchronously in the direction of travel, see arrow F, are moved. The hood shrinker 29a then moves along the control cam 31, for example realized by a control link, and is lowered so that it at the level of container 1c this slips over (at the height of the hood shrinker 29b). In this embodiment, there is a complete slipping over. With the slipping process begins the shrinking process by providing hot air, which is blown by means of the fan motor 59 and the heater 55 through nozzles 61 in the side wall of the hood 53 on the shrink film 7 and in the film eye 63 and 65 (see FIGS. 5 and 6 ).

Gleichzeitig kann gemäß einer Variante auch Heißluft vom Heizmittel 37 von unten zugeführt werden. Hierzu öffnen sich Klappen 39 unterhalb des Förderbands 23. Dies kann beispielsweise beim Überfahren von Nocken 41, 41' durch den Haubenschrumpfer 29b, 29c geschehen. Durch die Bereitstellung der Heißluft von unten werden die Enden 9, 11 der Schrumpffolie 7, siehe Fig. 1, miteinander verschweißt und zusätzlich geschrumpft.At the same time, according to a variant, hot air from the heating means 37 can also be supplied from below. For this purpose, flaps 39 open below the conveyor belt 23. This can happen, for example, when driving over cams 41, 41 'by the hood shrinker 29b, 29c. By providing the hot air from below, the ends 9, 11 of the shrink film 7, see Fig. 1 , welded together and additionally shrunk.

Nach dem Schrumpfprozess, auf Höhe des Haubenschrumpfers 29d, entfernt sich der Haubenschrumpfer wieder von dem Gebinde 1 und wird auf Höhe der Position B vom Transportband 27 entkoppelt. Somit lief ein Haubenschrumpfer eine Teilstrecke lang mit dem Packgut, hier dem Gebinde 1, in Förderrichtung mit. Das Gebinde 1f mit dem nun aufgeschrumpften Folienmantel wird vom Förderband 23 wegtransportiert.After the shrinking process, at the height of the hood shrinker 29 d, the hood shrinker moves away from the container 1 and is decoupled from the conveyor belt 27 at the height of the position B. Thus, a hood shrinker ran a part of the length of the packaged goods, here the container 1, in the conveying direction. The container 1f with the shrunk-on film jacket is transported away from the conveyor belt 23.

Wie in Fig. 3 dargestellt, wird der vom Transportband 27 entkoppelte Haubenschrumpfer dann vom zweiten Transportband 43 wieder, insbesondere mit erhöhter Geschwindigkeit, zurücktransportiert. Dort kann er dann, falls nötig, zwischengespeichert werden, bevor er wieder zum Einsatz kommt. Bevorzugt werden mehrere Haubenschrumpfer benutzt, um den Durchsatz der Maschine entsprechend hoch gestalten zu können.As in Fig. 3 shown, the decoupled from the conveyor belt 27 hood shrink then from the second conveyor belt 43 again, especially at an increased speed, transported back. There he can then, if necessary, be cached before he comes back to use. Preferably, several hood shrinkers are used to make the throughput of the machine can be correspondingly high.

Mit dem erfindungsgemäßen Verfahren werden die gleichen, oben genannten, Vorteile erzielt, wie mit der erfindungsgemäßen Maschine.With the method according to the invention, the same advantages mentioned above are achieved, as with the machine according to the invention.

Abweichend von der in Fig. 3 gezeigten Konfiguration könnten die Haubenschrumpfer permanent mit ihrem antreibenden Förderband oder dgl. gekoppelt sein, d.h. sie laufen dann mit einem bestimmten gegenseitigen Teilungsabstand synchron zur Geschwindigkeit der Gebinde auf einer geschlossenen Bahn um. Ferner könnte an Stelle einer ovalen Umlaufbahn auch eine kreisförmige Umlaufbahn gewählt werden, wobei die Gebinde zumindest abschnittsweise auf einem Kreissektor synchron mitgeführt werden. Dies lässt sich mit verhältnismäßig geringem Aufwand durch ein mehrere Haubenschrumpfer an seiner Peripherie tragendes Karussell realisieren. Auch hier ist eine starre Kopplung der Haubenschrumpfer am Karussell denkbar.Notwithstanding the in Fig. 3 As shown, the hood shrinkers could be permanently coupled to their driving conveyor belt or the like, ie they would then travel at a certain mutual pitch in synchrony with the speed of the packs on a closed path. Furthermore, instead of an oval orbit, a circular orbit could also be chosen, the containers being carried along synchronously, at least in sections, on a circular sector. This can be realized with relatively little effort by a carousel carrying several hood shrinkers on its periphery. Again, a rigid coupling of the hood shrinkers on the carousel is conceivable.

Claims (19)

  1. Machine for shrink-fitting shrink film (7) onto packaged goods (1), in particular for packaging packing units, comprising a conveyor (21) especially a conveyer belt (23), for transporting the packaged goods (1), at least one hood type shrink device (29a) with means (55) for heating shrink film (7), the hood type shrink device (29a) at least partially covering the packaged goods (1) transported on the conveyor (21) and moving along with the packaged goods (1) at least along a part of the path in the conveying direction and characterized in having an additional heating means (37), especially a hot air blower, under the conveyor belt (25).
  2. Machine according to claim 1, wherein the hood type shrink device (29a, 51) comprises a hood (53) which is closed at the top.
  3. Machine according to claim 1 or 2, wherein the hood type shrink device (29a, 51) covers the packaged goods (1) completely.
  4. Machine according to one of the claims 1 to 3, wherein each hood type shrink device (29a, 51) has a heater (55) and a blower (59).
  5. Machine according to one of the claims 1 to 4, wherein the hood type shrink device (29a, 51) has nozzles (61) in the side wall of the hood (53) for blowing in hot air.
  6. Machine according to one of the claims 1 to 5, and having a transport belt (27) which is so configured as to move at the speed of the conveyor (21) and can be coupled to the hood type shrink device (29a).
  7. Machine according to one of the claims 1 to 6, and having a control curve (31), especially a guide rail for predetermining the movement path of the hood type shrink device (29a), including lowering it in the direction of the packaged goods, moving it parallel to the packaged goods and lifting it for removal from the packaged goods.
  8. Machine according to one of the claims 1 to 7, and having at least one flap (39) over the additional heating means (37), which flap is so configured to be opened by the lowered hood type shrink device (29b), especially by a cam (41).
  9. Machine according to one of the claims 1 to 8, and having a plurality of hood type shrink devices (29a, 29b, ...) which are arranged in a row so that successive packaged goods (1a, 1b, 1c....) can be covered.
  10. Machine according to one of the claims 1 to 9, with a second conveyor belt (43), the conveyer belt (43) having a transport speed particularly higher than that of a first conveyer belt (27), for transporting the at least one hood type shrink device (45a, 45b, ...) after the shrinking of the shrink film (7) onto the packaged goods (1) back.
  11. Method for shrink-fitting shrink film (7) onto packaged goods (1), especially to package packing units, with the steps of
    • making packing goods available, which are at least partially covered by shrink film (7), on a conveyor (27), especially a conveyor belt (23),
    • at least partially covering the packing unit (1) with a hood-type shrink device (29a, 51), which comprises means (55) for heating,
    • shrinking the shrink film (7) onto the packing unit (1), by utilizing the means (55) to heat the hood-type shrink device (51), whereby the hood-type shrink device (29a, 29b, ...) moves along with the packaged goods (1), at least along a part of the path in the conveying direction, characterized in that additional heat is supplied from below.
  12. Method according to claim 11, whereby the hood-type shrink device (29a, 51) covers the packaged goods (1) completely.
  13. Method according to claims 11 or 12, whereby the hood-type shrink device (51) is closed at the top.
  14. Method according to one of the claims 11 to 13, whereby the hood-type shrink device (29a, 51) is coupled to the conveyor belt (27) on the part of a path, whereby the conveyor belt (27) moves with the same speed as the conveyor belt (23).
  15. Method according to one of the claims 11 to 14, whereby the hood-type shrink device (29a, 51) is moved towards the packaged goods (1) by means of a control curve (31), especially a guide rail, and covers the packaged goods (1), then, after the covering, is moved parallel with the packaged goods (1), and after the shrinking, is moved away from the packaged goods (1).
  16. Method according to one of the claims 11 to 15, whereby the hood-type shrink device (29a, 51) in the covering condition opens a flap (39) below the conveyor belt (23), especially by means of cams (41), so that heat is supplied from below.
  17. Method according to one of the claims 11 to 16, whereby after the hood-type shrink device (45a, 45b, ...) is transported back, to the beginning of the first conveyor belt (27) faster than with the first conveyor belt (27).
  18. Method according to one of the claims 11 to 17, whereby the packaged goods (1), especially in the eye of the film (63, 65), heat is supplied through nozzles (61) in the side wall of the hood (53).
  19. Method according to one of the claims 11 to 18, whereby a plurality of hood-type shrink devices (29a, 29b, ...) come one after another into operation, to package a plurality of packing units (1a, 1b, ...) following one another.
EP07021763A 2006-12-20 2007-11-09 Machine and method for shrinking a heat-shrink foil on products to be packaged. Not-in-force EP1935791B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006060109A DE102006060109A1 (en) 2006-12-20 2006-12-20 Machine for shrinking shrink film onto packaged goods and shrink-wrapping process

Publications (2)

Publication Number Publication Date
EP1935791A1 EP1935791A1 (en) 2008-06-25
EP1935791B1 true EP1935791B1 (en) 2009-12-23

Family

ID=39154134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021763A Not-in-force EP1935791B1 (en) 2006-12-20 2007-11-09 Machine and method for shrinking a heat-shrink foil on products to be packaged.

Country Status (6)

Country Link
US (1) US7891157B2 (en)
EP (1) EP1935791B1 (en)
JP (1) JP5036518B2 (en)
CN (1) CN101249902B (en)
AT (1) ATE452829T1 (en)
DE (2) DE102006060109A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003575A1 (en) * 2009-03-06 2010-09-09 Krones Ag Apparatus and method for heat treatment of packaging goods
US20100293901A1 (en) * 2009-05-20 2010-11-25 Martin Malthouse Shrink Systems for Labels
EP2311734A1 (en) * 2009-10-16 2011-04-20 Ulma Packaging Technological Center, S. Coop. Packaging machine for wrapping products or batches of products, and packaging process
DE102010011640B4 (en) * 2010-03-16 2020-03-12 Khs Gmbh Shrink tunnel for applying shrink films, method for operating or controlling a shrink tunnel and production plant with a shrink tunnel
DE102010021732A1 (en) * 2010-05-27 2011-12-01 Krones Ag Splicing device and method for splicing a web-like sheet
US20140020344A1 (en) * 2012-07-20 2014-01-23 Tzu-Chin Hung Shrink film heating device
CN102897354A (en) * 2012-09-20 2013-01-30 上海普瑞福模具磨料有限公司 Plastic packaging method
TWI655136B (en) * 2014-06-27 2019-04-01 日商養樂多本社股份有限公司 Shrinking label heat shrinking device
US10730652B2 (en) * 2014-10-28 2020-08-04 Heat Seal Llc Packaging machine and method for fabricating sheet metal housing components
WO2016170695A1 (en) * 2015-04-20 2016-10-27 大森機械工業 株式会社 Packaging machine
NL2016934B1 (en) * 2016-06-10 2018-01-16 Fuji Seal Int Inc Method, apparatus and system for attaching a label on a product
CN110127131B (en) * 2019-05-27 2021-09-10 台州市黄岩明宇塑料厂 Flat body is moulded laminating mechanism with heat

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790286A (en) * 1953-05-11 1957-04-30 Goodyear Tire & Rubber Secondary closures
DE2323224A1 (en) * 1973-05-09 1974-11-21 Zeva Loet & Verpackungstech SHRINK TUNNEL FOR FILM PACKAGING
US4104845A (en) * 1974-05-21 1978-08-08 B & H Manufacturing Company, Inc. Method and apparatus for applying sleeves to necks of bottles and other containers
FR2332179A1 (en) * 1975-11-21 1977-06-17 Sleever Sarl Shrink wrapping machine for individual articles - has hot air supply to shrinking head with moving and sliding sleeves and control spring
US4228345A (en) 1978-12-28 1980-10-14 Black Body Corporation Traveling infrared bell oven system
US4545832A (en) * 1982-05-27 1985-10-08 B & H Manufacturing Company, Inc. Machine and method for applying heat shrink labels
CA1224754A (en) * 1983-07-05 1987-07-28 Robert J. Burmeister Method of applying plastic labels on glass containers
CH692420A5 (en) * 1997-09-16 2002-06-14 Sandherr Packungen Ag Shrink wrapping a shrink-wrap part on a container comprises loosely placing the shrink-wrap part over the container and shrink wrapping it on the container on the action of heat
JP2001048127A (en) * 1999-08-11 2001-02-20 I K Eng Kk Infrared ray shrinking apparatus
EP1335857A1 (en) 2000-11-01 2003-08-20 Claud Andrew Neagle Adaptable packaging machine heat shrink tunnel
ITMI20011825A1 (en) * 2001-08-29 2003-03-01 Smi Spa THERMORETRATION TUNNEL OVEN FOR THE PRODUCTION OF FILM PACKAGING OF HEAT SHRINKABLE MATERIAL AND RE PACKAGING PROCEDURE
FR2858297B1 (en) * 2003-07-31 2006-01-20 Sleever Int METHOD AND THERMORETRACTION MACHINE FOR THERMORETRACTABLE SLEEVES, INDIVIDUALLY SIDED ON OBJECTS SUCH AS BOTTLES
JP4802865B2 (en) * 2006-05-29 2011-10-26 澁谷工業株式会社 Cylindrical label fitting device

Also Published As

Publication number Publication date
ATE452829T1 (en) 2010-01-15
DE102006060109A1 (en) 2008-06-26
JP5036518B2 (en) 2012-09-26
EP1935791A1 (en) 2008-06-25
CN101249902B (en) 2011-03-02
CN101249902A (en) 2008-08-27
DE502007002396D1 (en) 2010-02-04
JP2008155998A (en) 2008-07-10
US20080148691A1 (en) 2008-06-26
US7891157B2 (en) 2011-02-22

Similar Documents

Publication Publication Date Title
EP1935791B1 (en) Machine and method for shrinking a heat-shrink foil on products to be packaged.
EP2049401B2 (en) Method of shrinking a shrink-fit film onto packs
EP3012197A2 (en) Device and method for handling items
EP3678967B1 (en) Container-processing system and method for producing two separated regions in such a system
DE3903252C2 (en)
WO2014195391A1 (en) Device and method for forming packaging units
DE102010032455B4 (en) Shrinking apparatus and method for shrinking film onto containers
EP0621185B1 (en) Apparatus for conveying and treating packages for liquids
EP2551207B1 (en) Shrink device with container cooling
EP3372514B1 (en) Transport section of a packaging conveyor and method for modifying a packaging path for articles or compositions of articles
EP1050466A1 (en) Method and apparatus for packaging articles in a shrink foil
EP3700824A1 (en) Device and method for filling and/or processing packagings in a space closed by side walls
EP3548388A1 (en) Method and filling machine for filling packagings open on one side with a processing motion deviating from the transport direction
EP3808668B1 (en) Device for handling items to be packaged and method for adapting a device for transporting items for packaging
DE102013108175B4 (en) Stacking device and stacking process
EP1052174B1 (en) Vacuum deep-drawing packaging machine
EP3583056A1 (en) Device and method for flexible distribution of packagings
DE102019206024A1 (en) Method and device for producing packages for smoker's articles
DE602004007049T2 (en) Apparatus and method for wrapping a palletized load with a heat shrinkable film hood
DE102014104646B4 (en) Device for shrinking film onto articles
DE3431447A1 (en) DEVICE FOR SHRINKING THERMOPLASTIC COVERS ON GLASS CONTAINERS
DE102022115881A1 (en) METHOD AND DEVICE FOR FORMING PACKAGING BODY OPEN ON ONE SIDE FROM PACKAGING SLEEVES OVEN ON BOTH SIDES
DE202017105447U1 (en) Container treatment plant
EP3606832B1 (en) System and method for producing packaging multi-packs
WO2017025222A1 (en) Installation and method for producing and moving packages that consist of several articles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080510

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17Q First examination report despatched

Effective date: 20080731

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502007002396

Country of ref document: DE

Date of ref document: 20100204

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100423

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100403

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100323

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100924

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

BERE Be: lapsed

Owner name: KRONES A.G.

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101109

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20111109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101109

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091223

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111109

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 452829

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121130

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161101

Year of fee payment: 10

Ref country code: FR

Payment date: 20161014

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20161122

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007002396

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180602

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171109

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130