EP2825468B1 - Device and method for shrinking a shrink film onto a stack of goods - Google Patents

Device and method for shrinking a shrink film onto a stack of goods Download PDF

Info

Publication number
EP2825468B1
EP2825468B1 EP13708812.6A EP13708812A EP2825468B1 EP 2825468 B1 EP2825468 B1 EP 2825468B1 EP 13708812 A EP13708812 A EP 13708812A EP 2825468 B1 EP2825468 B1 EP 2825468B1
Authority
EP
European Patent Office
Prior art keywords
stack
goods
cover plate
shrink
frame
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.)
Active
Application number
EP13708812.6A
Other languages
German (de)
French (fr)
Other versions
EP2825468A1 (en
Inventor
Norbert Vermeulen
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.)
MSK Verpackungs Systeme GmbH
Original Assignee
MSK Verpackungs Systeme GmbH
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 MSK Verpackungs Systeme GmbH filed Critical MSK Verpackungs Systeme GmbH
Priority to EP13708812.6A priority Critical patent/EP2825468B1/en
Publication of EP2825468A1 publication Critical patent/EP2825468A1/en
Application granted granted Critical
Publication of EP2825468B1 publication Critical patent/EP2825468B1/en
Active 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • 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 device for shrinking a shrink film on a stack, wherein a movable frame on the stack and surrounding the stack when shrinking the shrink film shrink frame is provided.
  • the invention further relates to a method for shrinking a shrink film on a stack.
  • the term good stack is meant in particular a plurality of packages, packages, sacks or the like units, which are suitably stacked to a rectangular stack of goods. It is within the scope of the invention that the stack is received on a pallet. But it can also be used without pallets Gutstapel. The stack may in principle also be a few stacked units or even a single larger unit, for example from the white goods sector (washing machines, refrigerators, dishwashers and the like). It is also within the scope of the invention that the shrink film is a plastic film which is shrinkable under the influence of heat on the stack. As a result, the units stacked in the stack are firmly held together and in particular secured against slipping or the like. The shrink film can be attached in the form of a banderole to the stack or pulled in the form of a hose or a hood over the stack. Subsequently, the shrinking of the film takes place under the action of heat.
  • shrink frames which surround the stack and are moved in the vertical direction along the stack, while the shrink film corresponding to the respective vertical position of the shrink frame heat.
  • This heating takes place with the help of distributed over the circumference of the shrink frame heaters or burners that are operated electrically or with gas.
  • the heat energy delivered to the shrink film can be controlled according to the distance of the burners to the stack, as well as the control of the energy output of the burners and the vertical speed of the shrink frame.
  • shrink frames have been proven in principle, such devices are bulky and expensive.
  • shrink frame with movable shrink strips can be used to adjust the distance of the burner to the respective dimension of the stack.
  • this procedure is relatively complicated, since the burners must be switched off in segments when reducing the shrink frame and since many moving components are used. This is especially a problem when the components are gas-conducting.
  • shrink furnaces are still known in which the shrink film is usually shrunk onto the stack with the help of a circulating system for heat distribution.
  • these shrink furnaces have the considerable disadvantage that the targeted heat supply for an optimal shrinking of the film at the different areas of the stack is not possible.
  • shrink frames have proven to be much more effective.
  • the invention is based on the technical problem of still improving the already existing efficiency of a shrink frame and in particular to specify an energy-saving device and an energy-saving method for shrinking a shrink film.
  • the cover plate is movable vertically to the top of the stack and vertically from the top of the stack of goods is moved away. Conveniently, the cover plate with little play in relation to the side walls in the frame is vertically movable. According to a recommended embodiment, the gap between the cover plate and side walls is sealed by at least one sealing element or by at least one flexible sealing element.
  • rigid side walls form a rigid frame open towards the top or in the direction of the cover plate, and the cover plate can be moved or moved vertically within this frame or between the side walls of this frame.
  • the rigid frame is attached with its lower end to the shrink frame.
  • rectangular stack of rigid frame is expediently designed as a top open cuboid box. The cover plate can then immerse as it were in the frame or in the cuboid box.
  • a particularly preferred embodiment of the invention is characterized in that the frame, in particular the rigid frame on the cover plate can be suspended and that the frame in the suspended state with the cover plate is movable.
  • the frame is taken along by the cover plate in this suspended state.
  • the cover plate and the side walls are then connected together to form a box and this box is movable as a whole to the stack.
  • the side walls or the frame is combined with upper ceiling sections to form a box and in the suspended on the cover plate state of the frame and the box, the ceiling sections are on the cover plate.
  • a first sub-frame or first sub-box and a second sub-frame or second sub-box is provided, wherein the first sub-frame or sub-box engages or engage in the second sub-frame or sub-box and wherein the cover plate in the first sub-frame or Partial box and / or in the second subframe or sub-box to the stack and out of the stack is moved away.
  • the volume V between cover plate and stack is set.
  • the first sub-box forms as it were an inner box and the second sub-box as it were an outer box and these two sub-boxes are telescopic.
  • the first sub-box and the second sub-box have the same height.
  • the first sub-box can fully or partially engage in the second sub-box. It is within the scope of the invention that the second sub-box can be moved downwards or vertically downwards so that the first sub-box projects at least partially out of the second sub-box.
  • the second sub-box is connected at its lower end fixed to the shrink frame. It is recommended that the second sub-box with the shrink frame is movable, in particular down or vertically moved down.
  • the flexible side walls are also rolled up again in a movement of the shrink frame in the opposite direction.
  • the side walls in this embodiment consist of a refractory or heat-resistant flexible material. It is recommended that the retractors are connected or fixed to the top of the cover plate facing away from the stack. The volume of space between the cover plate and top of the stack can be easily adjusted depending on the course of the shrinking process and the height of the stack.
  • the energy saving is achieved in this embodiment, on the one hand, that the heated gases flowing through the gap between the side walls and the stack and through the gap between the cover plate and the top of the stack can effectively preheat the shrink film for the shrinking process.
  • the heat exiting from the cover plate with the heated gases is supplied to the shrink frame again and thus excess heat is used to further reduce energy consumption. Due to the recirculation of the heated gases, the power of the heaters or burners of the shrink frame can be further reduced, according to the temperature of the recycled heated gases and the recycled heated air, respectively.
  • the return of the heated gases is preferably supported by at least one fan present in the cover plate. Conveniently, the outer shell is attached to the shrink frame.
  • both the side walls of the inner shell and the outer side walls of the outer shell are designed as flexible and preferably as refractory or heat-resistant walls. Then it is possible that both the flexible side walls and the flexible outer side walls by means of retractors with corresponding movements of the components of the retractors are unrollable or rollable on the retractors. In this way, the volume of space above the stack can be adjusted according to the shrinkage as well as the height of the stack of goods.
  • the inner shell and / or the outer shell may also have rigid side walls / outer side walls and preferably, the cover plate is then vertically movable in the rigid frame of the rigid side walls. If necessary, the inner shell and / or the outer shell may also be cooled.
  • Another embodiment which is not according to the invention is characterized in that the side walls of the inner shell and / or the outer side walls of the outer shell are formed bellows-like. Then, the inner shell and / or the outer shell in the form of a hose is accordion-like collapsible, when the cover plate or the upper outer plate is moved vertically downwards or to the top of the stack of goods. On the other hand, the inner shell and / or the outer shell is accordion-unfoldable when the cover plate and the upper outer plate is moved in the opposite direction. - It is within the scope of the invention that in this embodiment, the cover plate to the top of the stack of goods is movable and can be moved away from the top of the stack.
  • the covering the cover stack cover plate at least one outlet opening for the outlet of heat generated during the shrinking process or for the outlet of the resulting during the shrinking process heated gases, in particular heated air.
  • the at least one outlet opening or the at least one upper outlet opening could also be provided in the upper region of a side wall.
  • the outlet opening can be closed by a closure element, for example by a throttle valve. In principle, however, it would also be possible to work without an outlet opening or an upper outlet opening in the invention.
  • the invention is based on the recognition that with the device according to the invention an effective preheating of the voltage applied to the lateral surfaces of the stack of shrink film and also one on the top of the stack of goods resting shrink film section is possible. It is within the scope of the invention that the shrink frame during the shrinking process is moved from a lower portion of the stack or pallet to the top of the stack. Due to the inventively preheated shrink film sections on the side surfaces and / or at the top of the stack, the power of the heaters or the burner can be reduced and in this way can be effectively saved energy. According to the invention, the heating devices or the burners can be readjusted by the heated gases depending on the extent of the preheating of the shrink film sections.
  • the heaters are preferably burners which are operated electrically or with gas.
  • the side walls between the shrink frame and the cover plate are provided.
  • the side walls arranged at a distance from the lateral surfaces of the stack of goods form a closed shell which completely surrounds the lateral surfaces of the stack of goods.
  • a block-shaped stack of goods is provided with the shrink film.
  • four side walls are preferably provided, which are arranged in a cuboid with a cross-sectionally rectangular or square cross-section. It is recommended that the sidewalls project beyond the top of the stack.
  • the side walls protrude at least in the operating state when shrinking the film up to the cover plate upwards.
  • the side walls made of heat-resistant or refractory material. According to a particularly preferred embodiment invention, the side walls and the lower end of the side walls are firmly connected to the shrink frame.
  • the cover plate is arranged parallel or substantially parallel to the top of the stack of goods. It is within the scope of the invention that the cover plate is arranged at least during the shrink-shrinking of the shrink film on the lateral surfaces of the stack of goods at a distance from the top of the stack of goods.
  • the cover plate is movable vertically or to the top of the stack of goods and vertically away from the top of the stack of goods. It is recommended that the cover plate is movable relative to the side walls. Conveniently, the side walls are not moved when moving the cover plate.
  • the top sheet when the side surfaces of the stack are covered by a shrink film tube or shrink wrap band, and when a topsheet sheet rests on top of the stack, the top sheet may also be pressed onto the top of the stack to provide communication between the shrink wrap tube or the shrink wrap band and the cover sheet to ensure.
  • the cover plate has a coating, in particular a Teflon coating, on its underside facing the upper side of the product stack.
  • At least one fan is present on or in the cover plate, with which the heated gases are sucked or sucked or with the cold gas or cold air can be supplied. It is within the scope of the invention that the at least one fan is arranged in the region of or on the at least one outlet opening. Conveniently, the at least one fan is reversible, so that either the heated gases can be sucked or cool gas can be supplied, if there is a need for cooling. This is particularly the case when the temperature of the heated gases in the area between the cover plate and the top of the stack and / or in the area between the side walls and the side surfaces of the stack is / is too high.
  • a cooling device can additionally be present on the cover plate.
  • the cover plate is movable or movable independently of the mobility of the shrink frame.
  • the cover plate can be moved, for example, in a downward movement of the shrink frame in its operating position parallel with the shrink frame down.
  • the cover plate according to a preferred embodiment of the invention with respect to the shrink frame completely moved separately or moved vertically.
  • the invention also teaches a method for shrinking a shrink film on a stack, the shrink film shrunk by means of a shrink frame on the stack is, wherein the shrink frame to - surrounding the stack - vertically movable on the stack, wherein the shrink film is thereby heated for shrinking with a plurality of distributed over the circumference of the shrink frame heaters, wherein a cover plate arranged above the stack of goods is moved vertically to the stack of goods or vertically away from the stack for setting a volume between cover plate and stack of goods, wherein heated gases generated during the shrinking process flow through gaps which are formed between the stack and in particular connected to the shrink frame and extending to the cover plate side walls or vertical side walls and wherein the heated gases are withdrawn, are preferably sucked and wherein the cover plate is moved in the process in the direction of stack and in the process in the opposite direction in a frame formed by side walls or rigid side walls or rigid frame.
  • the invention further teaches a method according to claim 15 and a
  • the shrink frame is moved at least to the bottom of the stack and then is moved under actuation of the heaters for heating and for shrinking the shrink film to the top of the stack. If the stack is placed on a pallet, the shrink frame can also be moved to the pallet or to below the pallet to realize a corresponding undershrinking here.
  • the heating power of the heaters is reduced or shut down when the shrink film is heated at the lateral surfaces of the stack by the flowing past or to the cover plate heated gases in a contributing to the shrinkage dimensions.
  • the shrinking operation is controlled by controlling the suction power of the at least one fan in the cover plate and by controlling the power of the heaters of the shrink frame. If the temperature increases during the shrinking process in the area above the shrink frame, the performance of the heaters is reduced when driving over this area, because here the shrink film is already preheated. As a result, the energy required for the shrinking process can be reduced accordingly.
  • the invention is based on the finding that a surprisingly high amount of energy can be saved with the device according to the invention and with the method according to the invention during the shrinking process.
  • the effectiveness of a shrinking frame which in any case is considerably more efficient than shrinking furnaces, can still be considerably increased.
  • the device according to the invention and the method according to the invention can also be realized with relatively simple and less expensive measures.
  • already existing devices with the components according to the invention can be retrofitted in a relatively simple manner.
  • the invention is characterized overall by relatively low cost and little effort. It should also be pointed out that a device according to the invention advantageously has a relatively small volume of construction.
  • the figures show a device for shrinking a shrink film 1 onto a good stack 2, wherein a shrink frame 3 which can be moved on the stack 2 and which surrounds the stack 2 when shrinking the shrink film is provided.
  • the shrink frame 3 has in the embodiment of the figures a plurality of distributed over its circumference heaters 4 for heating the shrink film 1 for the shrinking operation.
  • the heaters are designed in the embodiment as a gas-powered burner 5. However, it is also possible to use electrically operated heating devices.
  • a cover stack 6 covering the stack 2 is present, which is preferably arranged in the shrinking process and in the embodiment according to the figures at a distance from the top 7 of the stack 2.
  • the cover plate has an outlet opening 8 for the outlet of heated gases or heated air produced during the shrinking process.
  • the cover plate 6 is movable in the embodiment vertically to the top 7 of the stack 2 and movable away from the top of the stack 2 and in this way, the volume V between cover plate 6 and top 7 of the stack 2 can be adapted to the shrinking process. It can be seen in the figures that, according to a preferred embodiment, the cover plate 6 projects beyond the edges or the edges of the upper side 7 of the stack 2.
  • the cover plate 6 projects beyond the edges or edges of the upper side 7 on all sides. Empfohleneworth the cover plate 6 is otherwise arranged parallel or substantially parallel to the top 7 of the stack 2.
  • a fan 9 is provided above the outlet opening 8, with which the heated gas or the heated air is sucked. It is also within the scope of the invention that this fan 9 is reversible and that if necessary cool gas or cool air can be supplied through the outlet opening 8 for the purpose of cooling.
  • the cover plate 6 is independent of the mobility of the shrink frame 3 movable.
  • extending side walls 11 are provided between the shrink frame 3 and the cover plate 6 along the lateral surfaces 10 of the stack 2.
  • the side walls 11 are arranged at a distance from the lateral surfaces 10 of the stack 2. Between the stack 2 and the side walls 11 spaces 12 are formed for the upwardly flowing heated gases.
  • Fig. 1 and 6 to 8 In each case only two opposite side walls 11 are shown. It is within the scope of the invention that the stack 2 is surrounded on all sides by side walls 11, so that there is a closed shell. In a cuboid stack 2 shown in the figures thus four surrounding this stack 2 side walls 11 are used.
  • the side walls 11 are vertically oriented and preferably they protrude beyond the stack 2 and the top 7 of the stack 2. It is within the scope of the invention that the side walls 11 to the cover plate 6 and up to the each position of the cover plate 6 extend. Empfohlenenuit and in the embodiment, the side walls 11 and the lower ends of the side walls 11 are fixedly connected to the shrink frame 3. - According to one embodiment, the side walls 11 are firmly connected at their corners. However, it is also within the scope of the invention that the side walls 11 are designed so that they only overlap loosely at their corners.
  • the method to be carried out with the device according to the invention expediently begins with the shrinking frame 3 being moved into a lower region of the stack of goods 2.
  • the burner 5 can also already be operated to preheat the space around and above the stack 2.
  • the shrink frame 3 is recommended driven under the operation of the burner 5 up and thereby the heat applied to the stack 2 shrink film 1 is heated to shrink on the stack 2.
  • the preheating also relates to the shrink film 1 resting on the upper side 7 of the stack of goods 2 or a cover sheet film optionally resting there.
  • the volume V can be adjusted accordingly by means of the movable cover plate 6 here.
  • Fig. 1 form rigid side walls 11 a rigid the stack of goods 2 surrounding and open at the top frame.
  • the cover plate 6 can be moved vertically upwards or downwards. It is understood that the cover plate 6 must be movable with a certain play in the frame.
  • the corresponding distance between cover plate 6 and side walls 11 is suitably sealed by means of a flexible sealing element or with the aid of flexible sealing elements.
  • the rigid side walls 11 are preferably connected with their lower ends fixed to the shrink frame 3.
  • the Fig. 2 to 5 show a particularly preferred embodiment of the device according to the invention.
  • the frame is here of a first sub-frame or first sub-box 20 and a second subframe or second sub-box 21 is formed.
  • the first sub-box 20 and the second sub-box 21 has a rectangular cross-section.
  • the first sub-box 20 forms, as it were, an inner box which can engage in the second sub-box 21 as an outer box.
  • the unit of the first sub-box 20 and the second sub-box 21 is formed telescopic. Appropriately, and in the embodiment, the first and the second sub-box 20, 21 have the same height.
  • the second sub-box 21 is preferably connected at its lower end to the shrink frame 3 and thus movable with this shrink frame 3 or moved vertically downwards.
  • the walls of the first sub-box 20 are otherwise preferably and in the exemplary embodiment connected to ceiling sections 22, which are preferred and oriented in the embodiment perpendicular to the walls of the first sub-box 20.
  • the Fig. 2 shows the shrink frame 3 in an upper position.
  • the first sub-box 20 engages completely in the second sub-box 21 and both sub-boxes 20, 21 rest on the shrink frame.
  • the functional position according to Fig. 3 is the shrink frame 3 with the unit from the first sub-box 20 and the second sub-box 21 further down.
  • the suspended on rods 23 cover plate 6 approaches the ceiling sections 22 of the first sub-box 20.
  • the Fig. 4 illustrates that on further lowering of the shrink frame 3 in a lower position, the second sub-box 21 is guided with the shrink frame 3 down along the first sub-box 20.
  • the first sub-box 20 thus passes out of the second sub-box 21 in this way.
  • the cover plate 6 is now moved by means of the Verfahraggregates 24 together with the first sub-box 20 down to an optimum volume of space V between the top 7 of the stack 2 and the cover plate 6 set.
  • the Fig. 5 shows an embodiment with a stack 2 of lesser height.
  • the aggregate of cover plate 6 and first sub-box 20 has already moved completely down, so that the first sub-box 20 rests on the shrink frame 3.
  • the cover plate 6 can now be moved further down in the first sub-box 20 to set a favorable volume V between stack 2 and cover plate 6.
  • the cover plate 6 is then moved so in the aggregate of the first sub-box 20 and the second sub-box 21.
  • the side walls 11 are formed as flexible and heat-resistant or refractory side walls 11.
  • the upper ends of these side walls 11 are according to the embodiment Fig. 6 connected to retractors 13.
  • the flexible side walls 11 connected to the shrink frame 3 can be unrolled from the retractors 13 in accordance with the progress of movement of the shrink frame 3 with the cover plate 6 remaining in its position. It is understood that in an opposite movement of the shrink frame 3, the flexible side walls 11 are rolled back on the retractors 13.
  • the flexible side walls 11 are connected at their lower ends fixed to the shrink frame 3.
  • the inner shell 14 formed from the side walls 11 and the cover plate 6 is enclosed by an outer shell 15 with upper outer panel 16 and outer side walls 17 with the proviso that the heated gases emerging from the cover plate 6 in the between inner shell 14 and outer shell formed spaces 18 can flow to the shrink frame 3.
  • the excess heat of the heated gases is used to reduce the energy consumption of the shrink frame 3.
  • both the inner shell 14 and the outer shell 15 with the shrink frame 3 firmly connected are the side walls 11 formed as a rigid side walls 11 and the cover plate 6 is as in the embodiment of Fig. 1 in the frame formed from the rigid side walls 11 vertically movable.
  • the outer side walls 17 are rigid. In principle, in this embodiment, however, the side walls 11 and / or the outer side walls 17 may be formed as flexible rollable or unrollable walls.
  • an outer shell 15 is provided over the inner shell 14.
  • the side walls 11 of the inner shell 14 and the outer side walls 17 of the outer shell 15 are formed bellows.
  • both the cover plate 6 and the upper outer plate 16 can be easily adapted to different heights of stacks 2 and in particular the volume V between the cover plate 6 and the top 7 of the stack 2 can be adjusted depending on the shrinking process and in dependence on the height of the stack 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Packages (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Furnace Charging Or Discharging (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel, wobei ein am Gutstapel verfahrbarer und den Gutstapel beim Aufschrumpfen der Schrumpffolie umgebender Schrumpfrahmen vorgesehen ist. Die Erfindung betrifft fernerhin ein Verfahren zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel.The invention relates to a device for shrinking a shrink film on a stack, wherein a movable frame on the stack and surrounding the stack when shrinking the shrink film shrink frame is provided. The invention further relates to a method for shrinking a shrink film on a stack.

Mit dem Begriff Gutstapel ist insbesondere eine Mehrzahl von Packungen, Paketen, SƤcken oder dergleichen Einheiten gemeint, die zweckmƤƟigerweise zu einem quaderfƶrmigen Gutstapel gestapelt sind. Es liegt im Rahmen der Erfindung, dass der Gutstapel auf einer Palette aufgenommen ist. Es kƶnnen aber auch Gutstapel ohne Palette eingesetzt werden. Bei dem Gutstapel kann es sich grundsƤtzlich auch um wenige gestapelte Einheiten handeln oder aber auch um eine einzelne grĆ¶ĆŸere Einheit, beispielsweise aus dem WeiƟwarenbereich (Waschmaschinen, KĆ¼hlschrƤnke, SpĆ¼lmaschinen und dergleichen). Es liegt fernerhin im Rahmen der Erfindung, dass es sich bei der Schrumpffolie um eine Folie aus Kunststoff handelt, die unter dem Einfluss von WƤrme auf den Gutstapel aufschrumpfbar ist. Dadurch werden die in dem Gutstapel gestapelten Einheiten fest zusammengehalten und insbesondere gegen ein Verrutschen oder dergleichen gesichert. Die Schrumpffolie kann in Form einer Banderole an dem Gutstapel angebracht werden oder in Form eines Schlauches oder einer Haube Ć¼ber den Gutstapel gezogen werden. AnschlieƟend erfolgt das Aufschrumpfen der Folie unter Einwirkung von WƤrme.By the term good stack is meant in particular a plurality of packages, packages, sacks or the like units, which are suitably stacked to a rectangular stack of goods. It is within the scope of the invention that the stack is received on a pallet. But it can also be used without pallets Gutstapel. The stack may in principle also be a few stacked units or even a single larger unit, for example from the white goods sector (washing machines, refrigerators, dishwashers and the like). It is also within the scope of the invention that the shrink film is a plastic film which is shrinkable under the influence of heat on the stack. As a result, the units stacked in the stack are firmly held together and in particular secured against slipping or the like. The shrink film can be attached in the form of a banderole to the stack or pulled in the form of a hose or a hood over the stack. Subsequently, the shrinking of the film takes place under the action of heat.

Aus der Praxis sind Schrumpfrahmen bekannt, die den Gutstapel umgeben und in vertikaler Richtung an dem Gutstapel entlang verfahren werden und dabei die Schrumpffolie entsprechend der jeweiligen vertikalen Position des Schrumpfrahmens erwƤrmen. Diese ErwƤrmung erfolgt mit Hilfe von Ć¼ber den Umfang des Schrumpfrahmens verteilten Heizeinrichtungen bzw. Brennern, die elektrisch oder mit Gas betrieben werden. Die an die Schrumpffolie abgegebene WƤrmeenergie kann entsprechend dem Abstand der Brenner zum Gutstapel sowie durch die Steuerung der Energieabgabe der Brenner und der Vertikalgeschwindigkeit des Schrumpfrahmens gesteuert werden.From practice shrink frames are known, which surround the stack and are moved in the vertical direction along the stack, while the shrink film corresponding to the respective vertical position of the shrink frame heat. This heating takes place with the help of distributed over the circumference of the shrink frame heaters or burners that are operated electrically or with gas. The heat energy delivered to the shrink film can be controlled according to the distance of the burners to the stack, as well as the control of the energy output of the burners and the vertical speed of the shrink frame.

Wenn nacheinander Gutstapel mit grĆ¶ĆŸeren Differenzen in Bezug auf ihre Abmessungen bearbeitet werden (beispielsweise 500 mm x 500 mm bis 1800 mm x 1800 mm), kƶnnen zum einen mehrere Schrumpfrahmen unterschiedlicher Abmessungen vorgehalten werden und fĆ¼r den Schrumpfvorgang wird immer der Schrumpfrahmen gewƤhlt, der der entsprechenden Abmessung des Gutstapels am nƤchsten kommt. Obwohl sich Schrumpfrahmen grundsƤtzlich bewƤhrt haben, sind solche Vorrichtungen voluminƶs und kostenaufwendig. Zum anderen kƶnnen auch Schrumpfrahmen mit verfahrbaren Schrumpfleisten eingesetzt werden, um den Abstand der Brenner an die jeweilige Abmessung des Gutstapels anzupassen. Diese Verfahrensweise ist jedoch relativ aufwendig, da die Brenner bei Verkleinerung des Schrumpfrahmens segmentweise abgeschaltet werden mĆ¼ssen und da viele bewegliche Komponenten eingesetzt werden. Das ist vor allem dann ein Problem, wenn die Komponenten gasfĆ¼hrend sind.If one after the other good stacks are processed with larger differences in their dimensions (for example, 500 mm x 500 mm to 1800 mm x 1800 mm), on the one hand several shrink frames of different dimensions can be kept and for the shrinking process always the shrink frame is selected, the corresponding Dimension of the stack comes closest. Although shrink frames have been proven in principle, such devices are bulky and expensive. On the other hand shrink frame with movable shrink strips can be used to adjust the distance of the burner to the respective dimension of the stack. However, this procedure is relatively complicated, since the burners must be switched off in segments when reducing the shrink frame and since many moving components are used. This is especially a problem when the components are gas-conducting.

Aus der Praxis sind weiterhin geschlossene Schrumpfƶfen bekannt, in denen die Schrumpffolie in der Regel mit Hilfe eines Umluftsystems fĆ¼r die WƤrmeverteilung auf den Gutstapel aufgeschrumpft wird. Diese Schrumpfƶfen haben aber den beachtlichen Nachteil, dass die gezielte WƤrmezufĆ¼hrung fĆ¼r ein optimales Aufschrumpfen der Folie an den unterschiedlichen Bereichen des Gutstapels nicht mƶglich ist. DemgegenĆ¼ber haben sich Schrumpfrahmen als wesentlich effektiver erwiesen.From practice closed shrink furnaces are still known in which the shrink film is usually shrunk onto the stack with the help of a circulating system for heat distribution. However, these shrink furnaces have the considerable disadvantage that the targeted heat supply for an optimal shrinking of the film at the different areas of the stack is not possible. In contrast, shrink frames have proven to be much more effective.

Der Erfindung liegt das technische Problem zugrunde, die ohnehin vorhandene Effizienz eines Schrumpfrahmens noch zu verbessern und insbesondere eine energiesparende Vorrichtung sowie ein energiesparendes Verfahren zum Aufschrumpfen einer Schrumpffolie anzugeben.The invention is based on the technical problem of still improving the already existing efficiency of a shrink frame and in particular to specify an energy-saving device and an energy-saving method for shrinking a shrink film.

Zur Lƶsung dieses technischen Problems lehrt die Erfindung eine Vorrichtung zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel, wobei ein am Gutstapel verfahrbarer und den Gutstapel beim Aufschrumpfen der Schrumpffolie umgebender Schrumpfrahmen vorgesehen ist,

  • wobei der Schrumpfrahmen eine Mehrzahl von Ć¼ber seinen Umfang verteilten Heizeinrichtungen zur ErwƤrmung der Schrumpffolie beim Schrumpfvorgang aufweist,
  • wobei fernerhin eine den Gutstapel Ć¼berdeckende Deckplatte vorhanden ist, die beim Schrumpfvorgang insbesondere mit Abstand zur Oberseite des Gutstapels angeordnet ist,
  • wobei unterhalb der Deckplatte sich entlang des Gutstapels bzw. sich entlang der seitlichen FlƤchen des Gutstapels erstreckende SeitenwƤnde vorgesehen sind und wobei zwischen dem Gutstapel bzw. zwischen den seitlichen FlƤchen des Gutstapels und den SeitenwƤnden ZwischenrƤume fĆ¼r die zur Deckplatte bzw. fĆ¼r die nach oben strƶmenden erwƤrmten Gase gebildet sind,
  • wobei die Deckplatte zur Oberseite des Gutstapels verfahrbar ist und von der Oberseite des Gutstapels weg verfahrbar ist
  • und wobei die SeitenwƤnde einen Rahmen, insbesondere einen starren Rahmen bilden und wobei die Deckplatte innerhalb dieses Rahmens verfahrbar ist.
To solve this technical problem, the invention teaches a device for shrinking a shrink film onto a good stack, wherein a shrink frame movable on the stack and surrounding the stack when shrinking the shrink film is provided,
  • wherein the shrink frame has a plurality of heaters distributed over its circumference for heating the shrink film during the shrinking process,
  • further comprising a cover plate covering the stack, which is arranged during the shrinking process, in particular at a distance from the top of the stack,
  • wherein below the cover plate along the stack of goods or along the lateral surfaces of the stack of goods extending side walls are provided and wherein between the stack and between the side surfaces of the stack and the side walls intermediate spaces for the cover plate or for the upwardly heated heated Gases are formed,
  • wherein the cover plate is movable to the top of the stack and can be moved away from the top of the stack of goods
  • and wherein the side walls form a frame, in particular a rigid frame and wherein the cover plate is movable within this frame.

Es liegt im Rahmen der Erfindung, dass die Deckplatte vertikal zur Oberseite des Gutstapels verfahrbar ist und vertikal von der Oberseite des Gutstapels weg verfahrbar ist. ZweckmƤƟigerweise ist die Deckplatte mit geringem Spiel in Bezug auf die SeitenwƤnde in dem Rahmen vertikal verfahrbar. Nach einer empfohlenen AusfĆ¼hrungsform wird der Spalt zwischen Deckplatte und SeitenwƤnden durch zumindest ein Dichtelement bzw. durch zumindest ein flexibles Dichtelement abgedichtet.It is within the scope of the invention that the cover plate is movable vertically to the top of the stack and vertically from the top of the stack of goods is moved away. Conveniently, the cover plate with little play in relation to the side walls in the frame is vertically movable. According to a recommended embodiment, the gap between the cover plate and side walls is sealed by at least one sealing element or by at least one flexible sealing element.

Nach einer AusfĆ¼hrungsform der Erfindung bilden starre SeitenwƤnde einen starren nach oben bzw. in Richtung der Deckplatte offenen Rahmen und die Deckplatte ist innerhalb dieses Rahmens bzw. zwischen den SeitenwƤnden dieses Rahmens verfahrbar bzw. vertikal verfahrbar. Es liegt im Rahmen der Erfindung, dass der starre Rahmen mit seinem unteren Ende an dem Schrumpfrahmen befestigt ist. Bei quaderfƶrmigem Gutstapel ist der starre Rahmen zweckmƤƟigerweise als oben offener Quaderkasten ausgebildet. Die Deckplatte kann dann gleichsam in den Rahmen bzw. in den Quaderkasten eintauchen.According to one embodiment of the invention, rigid side walls form a rigid frame open towards the top or in the direction of the cover plate, and the cover plate can be moved or moved vertically within this frame or between the side walls of this frame. It is within the scope of the invention that the rigid frame is attached with its lower end to the shrink frame. In rectangular stack of rigid frame is expediently designed as a top open cuboid box. The cover plate can then immerse as it were in the frame or in the cuboid box.

Eine besonders bevorzugte AusfĆ¼hrungsform der Erfindung ist dadurch gekennzeichnet, dass der Rahmen, insbesondere der starre Rahmen an der Deckplatte aufhƤngbar ist und dass der Rahmen im aufgehƤngten Zustand mit der Deckplatte verfahrbar ist. Beim Verfahren der Deckplatte wird in diesem aufgehƤngten Zustand der Rahmen von der Deckplatte mitgenommen. Die Deckplatte und die SeitenwƤnde sind dann miteinander zu einem Kasten verbunden und dieser Kasten ist als Ganzes an dem Gutstapel verfahrbar. ZweckmƤƟigerweise sind die SeitenwƤnde bzw. ist der Rahmen mit oberen Deckenabschnitten zu einem Kasten kombiniert und in dem an der Deckplatte aufgehƤngten Zustand des Rahmens bzw. des Kastens liegen die Deckenabschnitte auf der Deckplatte auf. GemƤƟ besonders empfohlener AusfĆ¼hrungsform ist ein erster Teilrahmen bzw. erster Teilkasten und ein zweiter Teilrahmen bzw. zweiter Teilkasten vorgesehen, wobei der erste Teilrahmen bzw. Teilkasten in den zweiten Teilrahmen bzw. Teilkasten eingreift bzw. eingreifen kann und wobei die Deckplatte in dem ersten Teilrahmen bzw. Teilkasten und/oder in dem zweiten Teilrahmen bzw. Teilkasten zum Gutstapel hin bzw. vom Gutstapel weg verfahrbar ist. Durch diese Verfahrbarkeit der Deckplatte wird das Raumvolumen V zwischen Deckplatte und Gutstapel eingestellt. GemƤƟ dieser AusfĆ¼hrungsvariante bildet der erste Teilkasten gleichsam einen Innenkasten und der zweite Teilkasten gleichsam einen AuƟenkasten und diese beiden TeilkƤsten sind teleskopierbar ausgebildet. Nach einer AusfĆ¼hrungsform weist der erste Teilkasten und der zweite Teilkasten die gleiche Hƶhe auf. Der erste Teilkasten kann vollstƤndig oder teilweise in den zweiten Teilkasten eingreifen. Es liegt im Rahmen der Erfindung, dass der zweite Teilkasten nach unten bzw. vertikal nach unten verfahrbar ist, so dass der erste Teilkasten zumindest teilweise aus dem zweiten Teilkasten herausragt. Vorzugweise ist der zweite Teilkasten an seinem unteren Ende fest mit dem Schrumpfrahmen verbunden. Es empfiehlt sich, dass der zweite Teilkasten mit dem Schrumpfrahmen verfahrbar, insbesondere nach unten bzw. vertikal nach unten verfahrbar ist.A particularly preferred embodiment of the invention is characterized in that the frame, in particular the rigid frame on the cover plate can be suspended and that the frame in the suspended state with the cover plate is movable. When moving the cover plate, the frame is taken along by the cover plate in this suspended state. The cover plate and the side walls are then connected together to form a box and this box is movable as a whole to the stack. Conveniently, are the side walls or the frame is combined with upper ceiling sections to form a box and in the suspended on the cover plate state of the frame and the box, the ceiling sections are on the cover plate. According to a particularly recommended embodiment, a first sub-frame or first sub-box and a second sub-frame or second sub-box is provided, wherein the first sub-frame or sub-box engages or engage in the second sub-frame or sub-box and wherein the cover plate in the first sub-frame or Partial box and / or in the second subframe or sub-box to the stack and out of the stack is moved away. By this mobility of the cover plate, the volume V between cover plate and stack is set. According to this embodiment, the first sub-box forms as it were an inner box and the second sub-box as it were an outer box and these two sub-boxes are telescopic. According to one embodiment, the first sub-box and the second sub-box have the same height. The first sub-box can fully or partially engage in the second sub-box. It is within the scope of the invention that the second sub-box can be moved downwards or vertically downwards so that the first sub-box projects at least partially out of the second sub-box. Preferably, the second sub-box is connected at its lower end fixed to the shrink frame. It is recommended that the second sub-box with the shrink frame is movable, in particular down or vertically moved down.

Zur Lƶsung des technischen Problems lehrt die Erfindung weiterhin eine Vorrichtung zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel, wobei ein am Gutstapel verfahrbarer und den Gutstapel beim Aufschrumpfen der Schrumpffolie umgebender Schrumpfrahmen vorgesehen ist,

  • wobei der Schrumpfrahmen eine Mehrzahl von Ć¼ber seinen Umfang verteilten Heizeinrichtungen zur ErwƤrmung der Schrumpffolie beim Schrumpfvorgang aufweist,
  • wobei fernerhin eine den Gutstapel Ć¼berdeckende Deckplatte vorhanden ist, die beim Schrumpfvorgang insbesondere mit Abstand zur Oberseite des Gutstapels angeordnet ist,
  • wobei unterhalb der Deckplatte sich entlang des Gutstapels bzw. sich entlang der seitlichen FlƤchen des Gutstapels erstreckende SeitenwƤnde vorgesehen sind und wobei zwischen dem Gutstapel bzw. den seitlichen FlƤchen des Gutstapels und den SeitenwƤnden ZwischenrƤume fĆ¼r die zur Deckplatte bzw. fĆ¼r die nach oben strƶmenden erwƤrmten Gase gebildet sind,
  • und wobei die SeitenwƤnde aus einem flexiblen Material bestehen, so dass sie bei einer AbwƤrtsbewegung des Schrumpfrahmens von an der Deckplatte angeordneten Aufrolleinrichtungen entsprechend dem Fortschritt der AbwƤrtsbewegung des Schrumpfrahmens abrollbar sind.
To solve the technical problem, the invention further teaches a device for shrinking a shrink film on a stack, wherein a movable on the stack and the stack is provided when shrinking the shrink film surrounding shrink frame,
  • wherein the shrink frame has a plurality of heaters distributed over its circumference for heating the shrink film during the shrinking process,
  • further comprising a cover plate covering the stack, which is arranged during the shrinking process, in particular at a distance from the top of the stack,
  • wherein below the cover plate along the stack of goods or along the lateral surfaces of the stack of goods extending side walls are provided and wherein between the stack and the side surfaces of the stack and the side walls intermediate spaces for the cover plate or for the upward flowing heated gases are formed,
  • and wherein the side walls are made of a flexible material so that they can be unrolled during a downward movement of the shrink frame of arranged on the cover plate retractors according to the progress of the downward movement of the shrink frame.

Es liegt im Rahmen der Erfindung, dass die flexiblen SeitenwƤnde bei einer Bewegung des Schrumpfrahmens in die entgegengesetzte Richtung auch wieder aufrollbar sind. ZweckmƤƟigerweise bestehen die SeitenwƤnde bei dieser AusfĆ¼hrungsform aus einem feuerfesten bzw. hitzebestƤndigen flexiblen Material. Es empfiehlt sich, dass die Aufrolleinrichtungen an der dem Gutstapel abgewandten Oberseite der Deckplatte angeschlossen bzw. fixiert sind. Das Raumvolumen zwischen Deckplatte und Oberseite des Gutstapels lƤsst sich in AbhƤngigkeit vom Verlauf des Schrumpfvorgangs und von der Hƶhe des Gutstapels problemlos anpassen.It is within the scope of the invention that the flexible side walls are also rolled up again in a movement of the shrink frame in the opposite direction. Conveniently, the side walls in this embodiment consist of a refractory or heat-resistant flexible material. It is recommended that the retractors are connected or fixed to the top of the cover plate facing away from the stack. The volume of space between the cover plate and top of the stack can be easily adjusted depending on the course of the shrinking process and the height of the stack.

Zur Lƶsung des technischen Problems lehrt die Erfindung fernerhin eine Vorrichtung zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel, wobei ein am Gutstapel verfahrbarer und den Gutstapel beim Aufschrumpfen der Schrumpffolie umgebender Schrumpfrahmen vorgesehen ist,

  • wobei der Schrumpfrahmen eine Mehrzahl von Ć¼ber seinen Umfang verteilten Heizeinrichtungen zur ErwƤrmung der Schrumpffolie beim Schrumpfvorgang aufweist,
  • wobei fernerhin eine den Gutstapel Ć¼berdeckende Deckplatte vorhanden ist, die beim Schrumpfvorgang insbesondere mit Abstand zur Oberseite des Gutstapels angeordnet ist,
  • wobei unterhalb der Deckplatte sich entlang des Gutstapels bzw. sich entlang der seitlichen FlƤchen des Gutstapels erstreckende SeitenwƤnde vorgesehen sind und wobei zwischen dem Gutstapel bzw. zwischen den seitlichen FlƤchen des Gutstapels und den SeitenwƤnden ZwischenrƤume fĆ¼r die zur Deckplatte bzw. fĆ¼r die nach oben strƶmenden erwƤrmten Gase gebildet sind
  • und wobei die aus den SeitenwƤnden und der Deckplatte gebildete innere HĆ¼lle von einer ƤuƟeren HĆ¼lle mit oberer AuƟenplatte und AuƟenseitenwƤnden mit der MaƟgabe umschlossen ist, dass die aus der Deckplatte austretenden erwƤrmten Gase in den zwischen innerer HĆ¼lle und ƤuƟerer HĆ¼lle gebildeten ZwischenrƤumen zum Schrumpfrahmen bzw. insbesondere vertikal nach unten zum Schrumpfrahmen strƶmen kƶnnen.
To solve the technical problem, the invention further teaches a device for shrinking a shrink film on a stack, wherein a movable frame on the stack and surrounding the stack when shrinking the shrink film shrink frame is provided
  • wherein the shrink frame has a plurality of heaters distributed over its circumference for heating the shrink film during the shrinking process,
  • further comprising a cover plate covering the stack, which is arranged during the shrinking process, in particular at a distance from the top of the stack,
  • wherein below the cover plate along the stack of goods or along the lateral surfaces of the stack of goods extending side walls are provided and wherein between the stack and between the side surfaces of the stack and the side walls intermediate spaces for the cover plate or for the upwardly heated heated Gases are formed
  • and wherein the inner shell formed from the side walls and the cover plate is enclosed by an outer shell having upper outer panel and outer side walls, with the proviso that the heated gases emerging from the cover panel in the spaces formed between the inner shell and outer shell to the shrink frame or in particular can flow vertically down to the shrink frame.

Die Energieeinsparung wird bei dieser AusfĆ¼hrungsform zum einen dadurch erreicht, dass die durch den Zwischenraum zwischen den SeitenwƤnden und dem Gutstapel sowie durch den Zwischenraum zwischen Deckplatte und der Oberseite des Gutstapels strƶmenden erwƤrmten Gase die Schrumpffolie effektiv fĆ¼r den Schrumpfvorgang vorwƤrmen kƶnnen. Zum anderen wird die mit den erwƤrmten Gasen aus der Deckplatte austretende WƤrme dem Schrumpfrahmen wieder zugefĆ¼hrt und dadurch wird Ć¼berschĆ¼ssige WƤrme zur weiteren Reduzierung des Energieverbrauches genutzt. Aufgrund der RĆ¼ckfĆ¼hrung der erwƤrmten Gase kann die Leistung der Heizeinrichtungen bzw. der Brenner des Schrumpfrahmens weiter reduziert werden, und zwar entsprechend der Temperatur der rĆ¼ckgefĆ¼hrten erwƤrmten Gase bzw. der rĆ¼ckgefĆ¼hrten erwƤrmten Luft. Die RĆ¼ckfĆ¼hrung der erwƤrmten Gase wird dabei vorzugweise von zumindest einem in der Deckplatte vorhandenen GeblƤse unterstĆ¼tzt. ZweckmƤƟigerweise ist die ƤuƟere HĆ¼lle an dem Schrumpfrahmen befestigt. Nach einer AusfĆ¼hrungsvariante der Erfindung sind sowohl die SeitenwƤnde der inneren HĆ¼lle als auch die AuƟenseitenwƤnde der ƤuƟeren HĆ¼lle als flexible und bevorzugt als feuerfeste bzw. hitzebestƤndige WƤnde ausgefĆ¼hrt. Dann ist es mƶglich, dass sowohl die flexiblen SeitenwƤnde als auch die flexiblen AuƟenseitenwƤnde mit Hilfe von Aufrolleinrichtungen bei entsprechenden Bewegungen der Komponenten von den Aufrolleinrichtungen abrollbar bzw. auf den Aufrolleinrichtungen aufrollbar sind. Auf diese Weise kann das Raumvolumen Ć¼ber dem Gutstapel entsprechend dem Schrumpffortgang sowie an die Hƶhe des Gutstapels angepasst werden. Die innere HĆ¼lle und/oder die ƤuƟere HĆ¼lle kƶnnen aber auch starre SeitenwƤnde/AuƟenseitenwƤnde aufweisen und vorzugsweise ist die Deckplatte dann in dem starren Rahmen aus den starren SeitenwƤnden vertikal verfahrbar. Bei Bedarf kann die innere HĆ¼lle und/oder kann die ƤuƟere HĆ¼lle auch gekĆ¼hlt werden.The energy saving is achieved in this embodiment, on the one hand, that the heated gases flowing through the gap between the side walls and the stack and through the gap between the cover plate and the top of the stack can effectively preheat the shrink film for the shrinking process. On the other hand, the heat exiting from the cover plate with the heated gases is supplied to the shrink frame again and thus excess heat is used to further reduce energy consumption. Due to the recirculation of the heated gases, the power of the heaters or burners of the shrink frame can be further reduced, according to the temperature of the recycled heated gases and the recycled heated air, respectively. The return of the heated gases is preferably supported by at least one fan present in the cover plate. Conveniently, the outer shell is attached to the shrink frame. According to one embodiment of the invention, both the side walls of the inner shell and the outer side walls of the outer shell are designed as flexible and preferably as refractory or heat-resistant walls. Then it is possible that both the flexible side walls and the flexible outer side walls by means of retractors with corresponding movements of the components of the retractors are unrollable or rollable on the retractors. In this way, the volume of space above the stack can be adjusted according to the shrinkage as well as the height of the stack of goods. The inner shell and / or the outer shell may also have rigid side walls / outer side walls and preferably, the cover plate is then vertically movable in the rigid frame of the rigid side walls. If necessary, the inner shell and / or the outer shell may also be cooled.

Eine andere AusfĆ¼hrungsform die nicht erfindungsgemƤƟ ist, ist dadurch gekennzeichnet, dass die SeitenwƤnde der inneren HĆ¼lle und/oder die AuƟenseitenwƤnde der ƤuƟeren HĆ¼lle faltenbalgartig ausgebildet sind. Dann ist die innere HĆ¼lle und/ oder die ƤuƟere HĆ¼lle in Form eines Schlauches ziehharmonikaartig zusammenfaltbar, wenn die Deckplatte bzw. die obere AuƟenplatte vertikal nach unten bzw. zur Oberseite des Gutstapels hin verfahren wird. Andererseits ist die innere HĆ¼lle und/oder die ƤuƟere HĆ¼lle ziehharmonikaartig auseinanderfaltbar, wenn die Deckplatte bzw. die obere AuƟenplatte in der entgegengesetzten Richtung bewegt wird. - Es liegt im Rahmen der Erfindung, dass auch bei dieser AusfĆ¼hrungsform die Deckplatte zur Oberseite des Gutstapels verfahrbar ist und von der Oberseite des Gutstapel weg verfahrbar ist.Another embodiment which is not according to the invention is characterized in that the side walls of the inner shell and / or the outer side walls of the outer shell are formed bellows-like. Then, the inner shell and / or the outer shell in the form of a hose is accordion-like collapsible, when the cover plate or the upper outer plate is moved vertically downwards or to the top of the stack of goods. On the other hand, the inner shell and / or the outer shell is accordion-unfoldable when the cover plate and the upper outer plate is moved in the opposite direction. - It is within the scope of the invention that in this embodiment, the cover plate to the top of the stack of goods is movable and can be moved away from the top of the stack.

Die nachfolgenden AusfĆ¼hrungen und die nachfolgenden beschriebenen bevorzugten AusfĆ¼hrungsformen gelten fĆ¼r alle vorstehend beschriebenen AusfĆ¼hrungsvarianten der erfindungsgemƤƟen Vorrichtung. - Nach besonders bevorzugter AusfĆ¼hrungsform der Erfindung weist die den Gutstapel Ć¼berdeckende Deckplatte zumindest eine Auslassƶffnung fĆ¼r den Auslass von beim Schrumpfvorgang entstehender WƤrme bzw. fĆ¼r den Auslass vom beim Schrumpfvorgang entstehenden erwƤrmten Gasen, insbesondere erwƤrmter Luft auf. GrundsƤtzlich kƶnnte die zumindest eine Auslassƶffnung bzw. die zumindest eine obere Auslassƶffnung aber auch im oberen Bereich einer Seitenwand vorgesehen sein. Es liegt im Rahmen der Erfindung, dass die Auslassƶffnung durch ein Verschlusselement, beispielsweise durch eine Drosselklappe geschlossen werden kann. Prinzipiell kƶnnte bei der Erfindung aber auch ganz ohne Auslassƶffnung bzw. obere Auslassƶffnung gearbeitet werden.The following statements and the preferred embodiments described below apply to all the embodiments of the device according to the invention described above. - According to a particularly preferred embodiment of the invention, the covering the cover stack cover plate at least one outlet opening for the outlet of heat generated during the shrinking process or for the outlet of the resulting during the shrinking process heated gases, in particular heated air. In principle, however, the at least one outlet opening or the at least one upper outlet opening could also be provided in the upper region of a side wall. It is within the scope of the invention that the outlet opening can be closed by a closure element, for example by a throttle valve. In principle, however, it would also be possible to work without an outlet opening or an upper outlet opening in the invention.

Der Erfindung liegt die Erkenntnis zugrunde, das mit der erfindungsgemƤƟen Vorrichtung eine effektive VorwƤrmung der an den seitlichen FlƤchen des Gutstapels anliegenden Schrumpffolie und auch eines auf der Oberseite des Gutstapels aufliegenden Schrumpffolienabschnittes mƶglich ist. Es liegt im Rahmen der Erfindung, dass der Schrumpfrahmen beim Schrumpfvorgang von einem unteren Bereich des Gutstapels bzw. der Palette zur Oberseite des Gutstapels hin verfahren wird. Aufgrund der erfindungsgemƤƟ vorgewƤrmten Schrumpffolienabschnitte an den seitlichen FlƤchen und/oder an der Oberseite des Gutstapels kann die Leistung der Heizeinrichtungen bzw. der Brenner reduziert werden und auf diese Weise kann effektiv Energie eingespart werden. ErfindungsgemƤƟ kƶnnen die Heizeinrichtungen bzw. die Brenner in AbhƤngigkeit von dem AusmaƟ der VorwƤrmung der Schrumpffolienabschnitte durch die erwƤrmten Gase nachgeregelt werden. Bei den Heizeinrichtungen handelt es sich vorzugsweise um Brenner, die elektrisch oder mit Gas betrieben werden. GemƤƟ besonders bevorzugter AusfĆ¼hrungsform der Erfindung wird ein Schrumpfrahmen mit elektrischer Beheizung gemƤƟ EP 0 386 530 B1 eingesetzt. Es liegt im Rahmen der Erfindung, dass es sich bei der Schrumpffolie um eine Folie aus Kunststoff handelt, die bei Einwirkung von WƤrme schrumpffƤhig ist.The invention is based on the recognition that with the device according to the invention an effective preheating of the voltage applied to the lateral surfaces of the stack of shrink film and also one on the top of the stack of goods resting shrink film section is possible. It is within the scope of the invention that the shrink frame during the shrinking process is moved from a lower portion of the stack or pallet to the top of the stack. Due to the inventively preheated shrink film sections on the side surfaces and / or at the top of the stack, the power of the heaters or the burner can be reduced and in this way can be effectively saved energy. According to the invention, the heating devices or the burners can be readjusted by the heated gases depending on the extent of the preheating of the shrink film sections. The heaters are preferably burners which are operated electrically or with gas. According to a particularly preferred embodiment of the invention, a shrink frame with electric heating according to EP 0 386 530 B1 used. It is within the scope of the invention that the shrink film is a plastic film which is shrinkable when exposed to heat.

EmpfohlenermaƟen sind die SeitenwƤnde zwischen dem Schrumpfrahmen und der Deckplatte vorgesehen. ZweckmƤƟigerweise bilden die mit Abstand zu den seitlichen FlƤchen des Gutstapels angeordneten SeitenwƤnde eine geschlossene HĆ¼lle, die die seitlichen FlƤchen des Gutstapels vollstƤndig umgibt. Es liegt im Rahmen der Erfindung, dass ein quaderfƶrmiger Gutstapel mit der Schrumpffolie versehen wird. Dann sind vorzugsweise vier SeitenwƤnde vorgesehen, die quaderfƶrmig mit im Querschnitt rechteckigem bzw. quadratischem Querschnitt angeordnet sind. EmpfohlenermaƟen Ć¼berragen die SeitenwƤnde die Oberseite des Gutstapels. Vorzugsweise ragen die SeitenwƤnde zumindest im Betriebszustand beim Aufschrumpfen der Folie bis zur Deckplatte nach oben. ZweckmƤƟigerweise bestehen die SeitenwƤnde aus hitzebestƤndigem bzw. feuerfestem Material. Nach besonders bevorzugter AusfĆ¼hrungsform der Erfindung sind die SeitenwƤnde bzw. die unteren Ende der SeitenwƤnde fest mit dem Schrumpfrahmen verbunden.EmpfohlenermaƟen the side walls between the shrink frame and the cover plate are provided. Conveniently, the side walls arranged at a distance from the lateral surfaces of the stack of goods form a closed shell which completely surrounds the lateral surfaces of the stack of goods. It is within the scope of the invention that a block-shaped stack of goods is provided with the shrink film. Then four side walls are preferably provided, which are arranged in a cuboid with a cross-sectionally rectangular or square cross-section. It is recommended that the sidewalls project beyond the top of the stack. Preferably, the side walls protrude at least in the operating state when shrinking the film up to the cover plate upwards. Conveniently, the side walls made of heat-resistant or refractory material. According to a particularly preferred embodiment invention, the side walls and the lower end of the side walls are firmly connected to the shrink frame.

EmpfohlenermaƟen Ć¼berragt die Deckplatte die Kanten bzw. RƤnder der Oberseite des Gutstapels. Vorzugsweise ist die Deckplatte parallel bzw. im Wesentlichen parallel zur Oberseite des Gutstapels angeordnet. Es liegt im Rahmen der Erfindung, dass die Deckplatte zumindest wƤhrend des Aufschrumpfens der Schrumpffolie auf die seitlichen FlƤchen des Gutstapels mit Abstand zu der Oberseite des Gutstapels angeordnet ist.EmpfohlenermaƟen dominates the cover plate, the edges or edges of the top of the stack. Preferably, the cover plate is arranged parallel or substantially parallel to the top of the stack of goods. It is within the scope of the invention that the cover plate is arranged at least during the shrink-shrinking of the shrink film on the lateral surfaces of the stack of goods at a distance from the top of the stack of goods.

Es liegt weiterhin im Rahmen der Erfindung, dass die Deckplatte vertikal bzw. zur Oberseite des Gutstapels hin und vertikal von der Oberseite des Gutstapels weg verfahrbar ist. Es empfiehlt sich, dass die Deckplatte relativ zu den SeitenwƤnden verfahrbar ist. ZweckmƤƟigerweise werden beim Verfahren der Deckplatte die SeitenwƤnde nicht mitbewegt. Durch das Verfahren der Deckplatte zur Oberseite des Gutstapels hin kann zwischen Oberseite des Gutstapels und Deckplatte eine Raumverkleinerung realisiert werden, die eine effektive VorwƤrmung der Schrumpffolie durch die nach oben steigenden erwƤrmten Gase erlaubt, so dass die Leistung der Heizeinrichtungen des Schrumpfrahmens reduziert werden kann. Wenn nach einer AusfĆ¼hrungsform die seitlichen FlƤchen des Gutstapels von einem Schrumpffolienschlauch oder von einer Schrumpffolienbanderole bedeckt sind und wenn eine Deckblattfolie auf der Oberseite des Gutstapels aufliegt, kann die Deckplatte auch auf die Oberseite des Gutstapels gefahren bzw. gepresst werden, um eine Verbindung zwischen dem Schrumpffolienschlauch bzw. der Schrumpffolienbanderole und der Deckblattfolie zu gewƤhrleisten. GemƤƟ einer AusfĆ¼hrungsvariante der Erfindung weist die Deckplatte an ihrer der Oberseite des Gutstapels zugewandten Unterseite eine Beschichtung, insbesondere eine Teflonbeschichtung auf. Dadurch kann beim Anpressen der Deckplatte auf die Oberseite des Gutstapels ein Ankleben der Deckblattfolie an der Deckplatte vermieden werden.It is also within the scope of the invention that the cover plate is movable vertically or to the top of the stack of goods and vertically away from the top of the stack of goods. It is recommended that the cover plate is movable relative to the side walls. Conveniently, the side walls are not moved when moving the cover plate. By the method of the cover plate to the top of the stack, a space reduction can be realized between the top of the stack and cover plate, which allows an effective preheating of the shrink film by the rising upward heated gases, so that the performance of the heaters of the shrink frame can be reduced. According to one embodiment, when the side surfaces of the stack are covered by a shrink film tube or shrink wrap band, and when a topsheet sheet rests on top of the stack, the top sheet may also be pressed onto the top of the stack to provide communication between the shrink wrap tube or the shrink wrap band and the cover sheet to ensure. According to one embodiment variant of the invention, the cover plate has a coating, in particular a Teflon coating, on its underside facing the upper side of the product stack. As a result, when pressing the cover plate on top of the Good pile a sticking of the cover sheet on the cover plate can be avoided.

GemƤƟ besonders bevorzugter AusfĆ¼hrungsform der Erfindung ist an bzw. in der Deckplatte zumindest ein GeblƤse vorhanden, mit dem die erwƤrmten Gase absaugbar bzw. ansaugbar sind oder mit dem kaltes Gas bzw. kalte Luft zufĆ¼hrbar ist. Es liegt im Rahmen der Erfindung, dass das zumindest eine GeblƤse im Bereich der bzw. an der zumindest einen Auslassƶffnung angeordnet ist. ZweckmƤƟigerweise ist das zumindest eine GeblƤse reversierbar, so dass entweder die erwƤrmten Gase abgesaugt werden kƶnnen oder kĆ¼hles Gas zugefĆ¼hrt werden kann, wenn Bedarf zur KĆ¼hlung besteht. Das ist insbesondere dann der Fall, wenn die Temperatur der erwƤrmten Gase im Bereich zwischen der Deckplatte und der Oberseite des Gutstapels und/oder im Bereich zwischen den SeitenwƤnden und den seitlichen FlƤchen des Gutstapels zu hoch ist/wird. GrundsƤtzlich kann oder kann zusƤtzlich auch eine KĆ¼hlvorrichtung an der Deckplatte vorhanden sein.According to a particularly preferred embodiment of the invention, at least one fan is present on or in the cover plate, with which the heated gases are sucked or sucked or with the cold gas or cold air can be supplied. It is within the scope of the invention that the at least one fan is arranged in the region of or on the at least one outlet opening. Conveniently, the at least one fan is reversible, so that either the heated gases can be sucked or cool gas can be supplied, if there is a need for cooling. This is particularly the case when the temperature of the heated gases in the area between the cover plate and the top of the stack and / or in the area between the side walls and the side surfaces of the stack is / is too high. In principle, a cooling device can additionally be present on the cover plate.

Es liegt im Rahmen der Erfindung, dass die Deckplatte unabhƤngig von der Verfahrbarkeit des Schrumpfrahmens verfahrbar bzw. bewegbar ist. Prinzipiell kann die Deckplatte beispielsweise bei einer AbwƤrtsbewegung des Schrumpfrahmens in seine Betriebsposition parallel mit dem Schrumpfrahmen nach unten bewegt werden. Insbesondere zur Verkleinerung oder VergrĆ¶ĆŸerung des Raumvolumens zwischen Deckplatte und Oberseite des Gutstapels kann die Deckplatte nach bevorzugter AusfĆ¼hrungsform der Erfindung bezĆ¼glich des Schrumpfrahmens vƶllig separat bewegt bzw. vertikal verfahren werden.It is within the scope of the invention that the cover plate is movable or movable independently of the mobility of the shrink frame. In principle, the cover plate can be moved, for example, in a downward movement of the shrink frame in its operating position parallel with the shrink frame down. In particular, to reduce or increase the volume of space between the cover plate and the top of the stack, the cover plate according to a preferred embodiment of the invention with respect to the shrink frame completely moved separately or moved vertically.

Zur Lƶsung des technischen Problems lehrt die Erfindung auch ein Verfahren zum Aufschrumpfen einer Schrumpffolie auf einen Gutstapel, wobei die Schrumpffolie mittels eines Schrumpfrahmens auf den Gutstapel aufgeschrumpft wird, wobei der Schrumpfrahmen dazu - den Gutstapel umgebend - an dem Gutstapel vertikal verfahrbar ist, wobei die Schrumpffolie dabei zum Aufschrumpfen mit einer Mehrzahl von Ć¼ber den Umfang des Schrumpfrahmens verteilten Heizeinrichtungen erwƤrmt wird,
wobei eine Ć¼ber dem Gutstapel angeordnete Deckplatte zur Einstellung eines Raumvolumens zwischen Deckplatte und Gutstapel vertikal zum Gutstapel hin oder vertikal vom Gutstapel weg verfahren wird,
wobei beim Schrumpfvorgang entstehende erwƤrmte Gase durch ZwischenrƤume strƶmen, die zwischen dem Gutstapel und insbesondere an dem Schrumpfrahmen angeschlossenen und sich bis zur Deckplatte erstreckenden SeitenwƤnden bzw. vertikalen SeitenwƤnden ausgebildet sind und wobei die erwƤrmten Gase abgezogen werden, bevorzugt abgesaugt werden
und wobei die Deckplatte beim Verfahren in Richtung Gutstapel und beim Verfahren in die entgegengesetzte Richtung in einem von SeitenwƤnden bzw. starren SeitenwƤnden gebildeten Rahmen bzw. starren Rahmen verfahren wird. - Zur Lƶsung des technischen Problems lehrt die Erfindung fernerhin ein Verfahren nach dem Patentanspruch 15 und ein Verfahren nach dem Patentanspruch 16.To solve the technical problem, the invention also teaches a method for shrinking a shrink film on a stack, the shrink film shrunk by means of a shrink frame on the stack is, wherein the shrink frame to - surrounding the stack - vertically movable on the stack, wherein the shrink film is thereby heated for shrinking with a plurality of distributed over the circumference of the shrink frame heaters,
wherein a cover plate arranged above the stack of goods is moved vertically to the stack of goods or vertically away from the stack for setting a volume between cover plate and stack of goods,
wherein heated gases generated during the shrinking process flow through gaps which are formed between the stack and in particular connected to the shrink frame and extending to the cover plate side walls or vertical side walls and wherein the heated gases are withdrawn, are preferably sucked
and wherein the cover plate is moved in the process in the direction of stack and in the process in the opposite direction in a frame formed by side walls or rigid side walls or rigid frame. To solve the technical problem, the invention further teaches a method according to claim 15 and a method according to claim 16.

Es liegt im Rahmen der Erfindung, dass der Schrumpfrahmen zumindest bis zur Unterseite des Gutstapels verfahren wird und anschlieƟend unter BetƤtigung der Heizeinrichtungen zur ErwƤrmung und zum Aufschrumpfen der Schrumpffolie zur Oberseite des Gutstapels hin verfahren wird. Wenn der Gutstapel auf einer Palette angeordnet ist, kann der Schrumpfrahmen auch bis zur Palette oder bis unter die Palette verfahren werden, um hier einen entsprechenden Unterschrumpf zu realisieren.It is within the scope of the invention that the shrink frame is moved at least to the bottom of the stack and then is moved under actuation of the heaters for heating and for shrinking the shrink film to the top of the stack. If the stack is placed on a pallet, the shrink frame can also be moved to the pallet or to below the pallet to realize a corresponding undershrinking here.

Es liegt weiterhin im Rahmen der Erfindung, dass die Heizleistung der Heizeinrichtungen reduziert bzw. heruntergefahren wird, wenn die Schrumpffolie an den seitlichen FlƤchen des Gutstapels durch die vorbeistrƶmenden bzw. zur Deckplatte strƶmenden erwƤrmten Gase in einem zum Aufschrumpfen beitragenden MaƟe erwƤrmt wird. ZweckmƤƟigerweise wird der Schrumpfvorgang durch die Regelung der Ansaugleistung des zumindest einen GeblƤses in der Deckplatte und durch die Steuerung der Leistung der Heizeinrichtungen des Schrumpfrahmens gesteuert. Wenn sich wƤhrend des Schrumpfvorganges im Bereich Ć¼ber dem Schrumpfrahmen die Temperatur erhƶht, wird die Leistung der Heizeinrichtungen beim Ɯberfahren dieses Bereiches reduziert, weil hier die Schrumpffolie bereits vorgewƤrmt ist. Dadurch kann die fĆ¼r den Schrumpfvorgang benƶtigte Energie entsprechend verringert werden.It is also within the scope of the invention that the heating power of the heaters is reduced or shut down when the shrink film is heated at the lateral surfaces of the stack by the flowing past or to the cover plate heated gases in a contributing to the shrinkage dimensions. Conveniently, the shrinking operation is controlled by controlling the suction power of the at least one fan in the cover plate and by controlling the power of the heaters of the shrink frame. If the temperature increases during the shrinking process in the area above the shrink frame, the performance of the heaters is reduced when driving over this area, because here the shrink film is already preheated. As a result, the energy required for the shrinking process can be reduced accordingly.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit der erfindungsgemƤƟen Vorrichtung und mit dem erfindungsgemƤƟen Verfahren beim Schrumpfvorgang eine Ć¼berraschend hohe Energiemenge eingespart werden kann. Insoweit kann die EffektivitƤt eines ohnehin im Vergleich zu Schrumpfƶfen wesentlich effizienteren Schrumpfrahmens noch beachtlich gesteigert werden. Die erfindungsgemƤƟe Vorrichtung und das erfindungsgemƤƟe Verfahren kƶnnen auch mit relativ einfachen und wenig aufwendigen MaƟnahmen realisiert werden. GrundsƤtzlich kƶnnen auch bereits existierende Vorrichtungen mit den erfindungsgemƤƟen Komponenten auf verhƤltnismƤƟig einfache Weise nachgerĆ¼stet werden. Die Erfindung zeichnet sich insgesamt durch relativ geringe Kosten und geringem Aufwand aus. Es ist auch darauf hinzuweisen, dass eine erfindungsgemƤƟe Vorrichtung in vorteilhafter Weise ein relativ geringes Bauvolumen aufweist.The invention is based on the finding that a surprisingly high amount of energy can be saved with the device according to the invention and with the method according to the invention during the shrinking process. In that regard, the effectiveness of a shrinking frame, which in any case is considerably more efficient than shrinking furnaces, can still be considerably increased. The device according to the invention and the method according to the invention can also be realized with relatively simple and less expensive measures. In principle, already existing devices with the components according to the invention can be retrofitted in a relatively simple manner. The invention is characterized overall by relatively low cost and little effort. It should also be pointed out that a device according to the invention advantageously has a relatively small volume of construction.

Nachfolgend wird die Erfindung anhand einer lediglich ein AusfĆ¼hrungsbeispiel darstellenden Zeichnung nƤher erlƤutert. Es zeigen in schematischer Darstellung:

Fig. 1
eine Seitenansicht einer erfindungsgemƤƟen Vorrichtung in einer ersten AusfĆ¼hrungsform,
Fig. 2
eine weitere AusfĆ¼hrungsform der erfindungsgemƤƟen Vorrichtung in einer ersten Funktionsstellung,
Fig. 3
den Gegenstand nach Fig. 2 in einer zweiten Funktionsstellung,
Fig. 4
den Gegenstand gemƤƟ Fig. 3 in einer dritten Funktionsstellung,
Fig. 5
den Gegenstand nach Fig. 2 im Schnitt in einer weiteren Funktionsstellung mit einem Gutstapel geringerer Hƶhe,
Fig. 6
den Gegenstand nach Fig. 1 in einer weiteren AusfĆ¼hrungsform,
Fig. 7
den Gegenstand gemƤƟ Fig. 1 in einer zusƤtzlichen AusfĆ¼hrungsvariante und
Fig. 8
den Gegenstand nach Fig. 1 in einer AusfĆ¼hrungsform die nicht gemƤƟ der Erfindung ist.
The invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In a schematic representation:
Fig. 1
a side view of a device according to the invention in a first embodiment,
Fig. 2
a further embodiment of the device according to the invention in a first functional position,
Fig. 3
the object after Fig. 2 in a second functional position,
Fig. 4
the object according to Fig. 3 in a third functional position,
Fig. 5
the object after Fig. 2 on average in a further functional position with a stack of lesser height,
Fig. 6
the object after Fig. 1 in a further embodiment,
Fig. 7
the object according to Fig. 1 in an additional embodiment and
Fig. 8
the object after Fig. 1 in an embodiment not according to the invention.

Die Figuren zeigen eine Vorrichtung zum Aufschrumpfen einer Schrumpffolie 1 auf einen Gutstapel 2, wobei ein an dem Gutstapel 2 verfahrbarer und den Gutstapel 2 beim Aufschrumpfen der Schrumpffolie umgebender Schrumpfrahmen 3 vorgesehen ist. Der Schrumpfrahmen 3 weist im AusfĆ¼hrungsbeispiel nach den Figuren eine Mehrzahl von Ć¼ber seinen Umfang verteilten Heizeinrichtungen 4 zur ErwƤrmung der Schrumpffolie 1 fĆ¼r den Schrumpfvorgang auf. Die Heizeinrichtungen sind im AusfĆ¼hrungsbeispiel als mit Gas betriebene Brenner 5 ausgefĆ¼hrt. Es kƶnnen aber auch elektrisch betriebene Heizeinrichtungen eingesetzt werden.The figures show a device for shrinking a shrink film 1 onto a good stack 2, wherein a shrink frame 3 which can be moved on the stack 2 and which surrounds the stack 2 when shrinking the shrink film is provided. The shrink frame 3 has in the embodiment of the figures a plurality of distributed over its circumference heaters 4 for heating the shrink film 1 for the shrinking operation. The heaters are designed in the embodiment as a gas-powered burner 5. However, it is also possible to use electrically operated heating devices.

ErfindungsgemƤƟ ist eine den Gutstapel 2 Ć¼berdeckende Deckplatte 6 vorhanden, die beim Schrumpfvorgang vorzugsweise und im AusfĆ¼hrungsbeispiel nach den Figuren mit Abstand zur Oberseite 7 des Gutstapels 2 angeordnet ist. Die Deckplatte weist im AusfĆ¼hrungsbeispiel nach den Figuren eine Auslassƶffnung 8 fĆ¼r den Auslass von beim Schrumpfvorgang entstehenden erwƤrmten Gasen bzw. erwƤrmter Luft auf. Die Deckplatte 6 ist im AusfĆ¼hrungsbeispiel vertikal zur Oberseite 7 des Gutstapels 2 hin verfahrbar sowie von der Oberseite des Gutstapels 2 weg verfahrbar und auf diese Weise kann das Raumvolumen V zwischen Deckplatte 6 und Oberseite 7 des Gutstapels 2 an den Schrumpfvorgang angepasst werden. In den Figuren ist erkennbar, dass die Deckplatte 6 nach bevorzugter AusfĆ¼hrungsform die RƤnder bzw. die Kanten der Oberseite 7 des Gutstapels 2 Ć¼berragt. ZweckmƤƟigerweise Ć¼berragt die Deckplatte 6 die RƤnder bzw. Kanten der Oberseite 7 allseitig. EmpfohlenermaƟen ist die Deckplatte 6 im Ɯbrigen parallel oder im Wesentlichen parallel zu der Oberseite 7 des Gutstapels 2 angeordnet. Vorzugsweise und im AusfĆ¼hrungsbeispiel nach den Figuren ist Ć¼ber der Auslassƶffnung 8 ein GeblƤse 9 vorhanden, mit dem das erwƤrmte Gas bzw. die erwƤrmte Luft absaugbar ist. Es liegt auch im Rahmen der Erfindung, dass dieses GeblƤse 9 reversierbar ist und dass bei Bedarf kĆ¼hles Gas bzw. kĆ¼hle Luft durch die Auslassƶffnung 8 zwecks KĆ¼hlung zufĆ¼hrbar ist. Bevorzugt und im AusfĆ¼hrungsbeispiel ist die Deckplatte 6 unabhƤngig von der Verfahrbarkeit des Schrumpfrahmens 3 verfahrbar.According to the invention a cover stack 6 covering the stack 2 is present, which is preferably arranged in the shrinking process and in the embodiment according to the figures at a distance from the top 7 of the stack 2. In the exemplary embodiment according to the figures, the cover plate has an outlet opening 8 for the outlet of heated gases or heated air produced during the shrinking process. The cover plate 6 is movable in the embodiment vertically to the top 7 of the stack 2 and movable away from the top of the stack 2 and in this way, the volume V between cover plate 6 and top 7 of the stack 2 can be adapted to the shrinking process. It can be seen in the figures that, according to a preferred embodiment, the cover plate 6 projects beyond the edges or the edges of the upper side 7 of the stack 2. Expediently, the cover plate 6 projects beyond the edges or edges of the upper side 7 on all sides. EmpfohlenermaƟen the cover plate 6 is otherwise arranged parallel or substantially parallel to the top 7 of the stack 2. Preferably and in the embodiment of the figures, a fan 9 is provided above the outlet opening 8, with which the heated gas or the heated air is sucked. It is also within the scope of the invention that this fan 9 is reversible and that if necessary cool gas or cool air can be supplied through the outlet opening 8 for the purpose of cooling. Preferably and in the embodiment, the cover plate 6 is independent of the mobility of the shrink frame 3 movable.

ErfindungsgemƤƟ sind zwischen dem Schrumpfrahmen 3 und der Deckplatte 6 sich entlang der seitlichen FlƤchen 10 des Gutstapels 2 erstreckende SeitenwƤnde 11 vorgesehen. Die SeitenwƤnde 11 sind mit Abstand zu den seitlichen FlƤchen 10 des Gutstapels 2 angeordnet. Zwischen dem Gutstapel 2 und den SeitenwƤnden 11 sind ZwischenrƤume 12 fĆ¼r die nach oben strƶmenden erwƤrmten Gase ausgebildet. In den Fig. 1 und 6 bis 8 sind jeweils nur zwei gegenĆ¼berliegende SeitenwƤnde 11 gezeigt. Es liegt dabei im Rahmen der Erfindung, dass der Gutstapel 2 allseitig von SeitenwƤnden 11 umgeben wird, so dass sich eine geschlossene HĆ¼lle ergibt. Bei einem in den Figuren dargestellten quaderfƶrmigen Gutstapel 2 werden somit vier diesen Gutstapel 2 umgebende SeitenwƤnde 11 eingesetzt. ZweckmƤƟigerweise und im AusfĆ¼hrungsbeispiel nach den Figuren sind die SeitenwƤnde 11 vertikal orientiert und bevorzugt Ć¼berragen sie den Gutstapel 2 bzw. die Oberseite 7 des Gutstapels 2. Es liegt im Rahmen der Erfindung, dass sich die SeitenwƤnde 11 bis zur Deckplatte 6 bzw. bis zu der jeweiligen Position der Deckplatte 6 erstrecken. EmpfohlenermaƟen und im AusfĆ¼hrungsbeispiel sind die SeitenwƤnde 11 bzw. die unteren Enden der SeitenwƤnde 11 fest mit dem Schrumpfrahmen 3 verbunden. - Nach einer AusfĆ¼hrungsform sind die SeitenwƤnde 11 an ihren Ecken fest miteinander verbunden. Es liegt aber auch im Rahmen der Erfindung, dass die SeitenwƤnde 11 so ausgefĆ¼hrt sind, dass sie an ihren Ecken nur lose Ć¼berlappen.According to the invention extending side walls 11 are provided between the shrink frame 3 and the cover plate 6 along the lateral surfaces 10 of the stack 2. The side walls 11 are arranged at a distance from the lateral surfaces 10 of the stack 2. Between the stack 2 and the side walls 11 spaces 12 are formed for the upwardly flowing heated gases. In the Fig. 1 and 6 to 8 In each case only two opposite side walls 11 are shown. It is within the scope of the invention that the stack 2 is surrounded on all sides by side walls 11, so that there is a closed shell. In a cuboid stack 2 shown in the figures thus four surrounding this stack 2 side walls 11 are used. Appropriately, and in the embodiment of the figures, the side walls 11 are vertically oriented and preferably they protrude beyond the stack 2 and the top 7 of the stack 2. It is within the scope of the invention that the side walls 11 to the cover plate 6 and up to the each position of the cover plate 6 extend. EmpfohlenermaƟen and in the embodiment, the side walls 11 and the lower ends of the side walls 11 are fixedly connected to the shrink frame 3. - According to one embodiment, the side walls 11 are firmly connected at their corners. However, it is also within the scope of the invention that the side walls 11 are designed so that they only overlap loosely at their corners.

Das mit der erfindungsgemƤƟen Vorrichtung durchzufĆ¼hrende Verfahren beginnt zweckmƤƟigerweise damit, dass der Schrumpfrahmen 3 in einen unteren Bereich des Gutstapels 2 verfahren wird. Dabei kƶnnen die Brenner 5 auch bereits betƤtigt werden um den Raum um und Ć¼ber dem Gutstapel 2 vorzuheizen. Dann wird der Schrumpfrahmen 3 empfohlenermaƟen unter BetƤtigung der Brenner 5 nach oben gefahren und dabei wird die auf dem Gutstapel 2 anliegende Schrumpffolie 1 zum Aufschrumpfen auf den Gutstapel 2 erwƤrmt.The method to be carried out with the device according to the invention expediently begins with the shrinking frame 3 being moved into a lower region of the stack of goods 2. The burner 5 can also already be operated to preheat the space around and above the stack 2. Then the shrink frame 3 is recommended driven under the operation of the burner 5 up and thereby the heat applied to the stack 2 shrink film 1 is heated to shrink on the stack 2.

Bei diesem Schrumpfvorgang entstehen erwƤrmte Gase, insbesondere erwƤrmte Luft, die durch die ZwischenrƤume 12 zwischen den SeitenwƤnden 11 und dem Gutstapel 2 zur Deckplatte 6 bzw. zur Auslassƶffnung 8 hinstrƶmen. Dadurch werden die erwƤrmten Gase relativ dicht an der oberhalb des Schrumpfrahmens 3 an dem Gutstapel 2 anliegenden Schrumpffolie vorbeigefĆ¼hrt. Dadurch resultiert eine effektive VorwƤrmung der entsprechenden Schrumpffolienabschnitte und hierdurch ergibt sich der beachtliche Vorteil, dass die Leistung der Brenner 5 des nachgefĆ¼hrten Schrumpfrahmens 3 aufgrund der bereits fĆ¼r den Schrumpfvorgang vorgewƤrmten Schrumpffolienabschnitte reduziert werden kann. Das bedingt eine erhebliche Energieeinsparung. Die VorwƤrmung betrifft im Ɯbrigen auch die auf der Oberseite 7 des Gutstapels 2 aufliegende Schrumpffolie 1 bzw. eine dort gegebenenfalls aufliegende Deckblattfolie. FĆ¼r eine effektive VorwƤrmung kann hier das Raumvolumen V mittels der verfahrbaren Deckplatte 6 entsprechend eingestellt werden.In this shrinking process, heated gases, in particular heated air, which flow through the intermediate spaces 12 between the side walls 11 and the stack 2 to the cover plate 6 and to the outlet opening 8 are formed. As a result, the heated gases are passed relatively close to the heat shrinking film lying against the stack 2 above the shrink frame 3. This results in an effective preheating of the corresponding shrink film sections and this results in the considerable advantage that the performance of the burner 5 of the tracking shrink frame 3 can be reduced due to the already pre-heated for the shrinking shrink film sections. This requires a considerable energy saving. Incidentally, the preheating also relates to the shrink film 1 resting on the upper side 7 of the stack of goods 2 or a cover sheet film optionally resting there. For an effective preheating, the volume V can be adjusted accordingly by means of the movable cover plate 6 here.

Beim AusfĆ¼hrungsbeispiel nach Fig. 1 bilden starre SeitenwƤnde 11 einen starren den Gutstapel 2 umgebenden und oben offenen Rahmen. In diesem Rahmen bzw. zwischen den starren SeitenwƤnden 11 ist die Deckplatte 6 vertikal nach oben oder nach unten verfahrbar. Es versteht sich, dass die Deckplatte 6 mit gewissem Spiel in dem Rahmen verfahrbar sein muss. Der entsprechende Abstand zwischen Deckplatte 6 und SeitenwƤnden 11 wird zweckmƤƟigerweise mit Hilfe eines flexiblen Dichtelementes bzw. mit Hilfe von flexiblen Dichtelementen abgedichtet. Im AusfĆ¼hrungsbeispiel nach Fig. 1 sind im Ɯbrigen die starren SeitenwƤnde 11 bevorzugt mit ihren unteren Enden fest mit dem Schrumpfrahmen 3 verbunden.According to the embodiment Fig. 1 form rigid side walls 11 a rigid the stack of goods 2 surrounding and open at the top frame. In this context, or between the rigid side walls 11, the cover plate 6 can be moved vertically upwards or downwards. It is understood that the cover plate 6 must be movable with a certain play in the frame. The corresponding distance between cover plate 6 and side walls 11 is suitably sealed by means of a flexible sealing element or with the aid of flexible sealing elements. In the embodiment according to Fig. 1 Incidentally, the rigid side walls 11 are preferably connected with their lower ends fixed to the shrink frame 3.

Die Fig. 2 bis 5 zeigen eine besonders bevorzugte AusfĆ¼hrungsform der erfindungsgemƤƟen Vorrichtung. Der Rahmen wird hier von einem ersten Teilrahmen bzw. ersten Teilkasten 20 sowie von einem zweiten Teilrahmen bzw. zweiten Teilkasten 21 gebildet. Vorzugsweise und im AusfĆ¼hrungsbeispiel hat der erste Teilkasten 20 und hat der zweite Teilkasten 21 einen rechteckfƶrmigen Querschnitt. Der erste Teilkasten 20 bildet gleichsam einen Innenkasten der in den zweiten Teilkasten 21 als AuƟenkasten eingreifen kann. Das Aggregat aus dem ersten Teilkasten 20 und dem zweiten Teilkasten 21 ist teleskopierbar ausgebildet. ZweckmƤƟigerweise und im AusfĆ¼hrungsbeispiel weisen der erste und der zweite Teilkasten 20, 21 die gleiche Hƶhe auf. Der zweite Teilkasten 21 ist bevorzugt an seinem unteren Ende mit dem Schrumpfrahmen 3 verbunden und somit mit diesem Schrumpfrahmen 3 verfahrbar bzw. vertikal nach unten verfahrbar. Die WƤnde des ersten Teilkastens 20 sind im Ɯbrigen vorzugsweise und im AusfĆ¼hrungsbeispiel mit Deckenabschnitten 22 verbunden, die bevorzugt und im AusfĆ¼hrungsbeispiel senkrecht zu den WƤnden des ersten Teilkastens 20 orientiert sind.The Fig. 2 to 5 show a particularly preferred embodiment of the device according to the invention. The frame is here of a first sub-frame or first sub-box 20 and a second subframe or second sub-box 21 is formed. Preferably, and in the embodiment, the first sub-box 20 and the second sub-box 21 has a rectangular cross-section. The first sub-box 20 forms, as it were, an inner box which can engage in the second sub-box 21 as an outer box. The unit of the first sub-box 20 and the second sub-box 21 is formed telescopic. Appropriately, and in the embodiment, the first and the second sub-box 20, 21 have the same height. The second sub-box 21 is preferably connected at its lower end to the shrink frame 3 and thus movable with this shrink frame 3 or moved vertically downwards. The walls of the first sub-box 20 are otherwise preferably and in the exemplary embodiment connected to ceiling sections 22, which are preferred and oriented in the embodiment perpendicular to the walls of the first sub-box 20.

Die Fig. 2 zeigt den Schrumpfrahmen 3 in einer oberen Position. Hier greift der erste Teilkasten 20 vollstƤndig in den zweiten Teilkasten 21 ein und beide TeilkƤsten 20, 21 liegen auf dem Schrumpfrahmen auf. In der Funktionsstellung gemƤƟ Fig. 3 ist der Schrumpfrahmen 3 mit dem Aggregat aus dem ersten Teilkasten 20 und dem zweiten Teilkasten 21 weiter nach unten gefahren. Dabei nƤhert sich die an Stangen 23 aufgehƤngte Deckplatte 6 den Deckenabschnitten 22 des ersten Teilkastens 20. Die Fig. 4 verdeutlicht, dass bei weiterem Herunterfahren des Schrumpfrahmens 3 in eine untere Position der zweite Teilkasten 21 mit dem Schrumpfrahmen 3 nach unten entlang des ersten Teilkastens 20 gefĆ¼hrt wird. Der erste Teilkasten 20 gelangt also auf diese Weise aus dem zweiten Teilkasten 21 heraus. In der Funktionsstellung der Fig. 4 liegen die Deckenabschnitte 22 des ersten Teilkastens 20 auf der Deckplatte 6 auf. Somit ist der erste Teilkasten 20 an der Deckplatte 6 aufgehƤngt. Bei Bedarf wird jetzt die Deckplatte 6 mit Hilfe des Verfahraggregates 24 mitsamt dem ersten Teilkasten 20 nach unten verfahren, um ein optimales Raumvolumen V zwischen der Oberseite 7 des Gutstapels 2 und der Deckplatte 6 einzustellen.The Fig. 2 shows the shrink frame 3 in an upper position. Here, the first sub-box 20 engages completely in the second sub-box 21 and both sub-boxes 20, 21 rest on the shrink frame. In the functional position according to Fig. 3 is the shrink frame 3 with the unit from the first sub-box 20 and the second sub-box 21 further down. In this case, the suspended on rods 23 cover plate 6 approaches the ceiling sections 22 of the first sub-box 20. The Fig. 4 illustrates that on further lowering of the shrink frame 3 in a lower position, the second sub-box 21 is guided with the shrink frame 3 down along the first sub-box 20. The first sub-box 20 thus passes out of the second sub-box 21 in this way. In the functional position of Fig. 4 are the ceiling portions 22 of the first sub-box 20 on the cover plate 6. Thus, the first sub-box 20 is suspended from the cover plate 6. If necessary, the cover plate 6 is now moved by means of the Verfahraggregates 24 together with the first sub-box 20 down to an optimum volume of space V between the top 7 of the stack 2 and the cover plate 6 set.

Die Fig. 5 zeigt eine AusfĆ¼hrungsform mit einem Gutstapel 2 geringerer Hƶhe. Hier ist das Aggregat aus Deckplatte 6 und erstem Teilkasten 20 bereits vollstƤndig nach unten gefahren, so dass auch der erste Teilkasten 20 auf dem Schrumpfrahmen 3 aufliegt. Bei Bedarf kann jetzt die Deckplatte 6 in dem ersten Teilkasten 20 weiter nach unten verfahren werden, um ein gĆ¼nstiges Raumvolumen V zwischen Gutstapel 2 und Deckplatte 6 einzustellen. Die Deckplatte 6 wird dann also in dem Aggregat aus dem ersten Teilkasten 20 und dem zweiten Teilkasten 21 verfahren.The Fig. 5 shows an embodiment with a stack 2 of lesser height. Here, the aggregate of cover plate 6 and first sub-box 20 has already moved completely down, so that the first sub-box 20 rests on the shrink frame 3. If necessary, the cover plate 6 can now be moved further down in the first sub-box 20 to set a favorable volume V between stack 2 and cover plate 6. The cover plate 6 is then moved so in the aggregate of the first sub-box 20 and the second sub-box 21.

Beim Schrumpfvorgang wird in der AusfĆ¼hrungsform nach Fig. 4 der Schrumpfrahmen mit dem zweiten Teilkasten 21 nach oben gefahren, so dass sich der zweite Teilkasten 21 entlang des ersten Teilkastens 20 bewegt. Bei der AusfĆ¼hrungsvariante nach Fig. 5 fƤhrt beim Schrumpfvorgang der Schrumpfrahmen 3 mit dem gesamten Aggregat aus zweitem Teilkasten 21 und erstem Teilkasten 20 nach oben.When shrinking process is in the embodiment after Fig. 4 the shrink frame moved with the second sub-box 21 upwards, so that the second sub-box 21 moves along the first sub-box 20. In the embodiment according to Fig. 5 moves during the shrinking process of the shrink frame 3 with the entire unit from the second sub-box 21 and the first sub-box 20 upwards.

Im AusfĆ¼hrungsbeispiel nach Fig. 6 sind die SeitenwƤnde 11 als flexible und hitzebestƤndige bzw. feuerfeste SeitenwƤnde 11 ausgebildet. Die oberen Enden dieser SeitenwƤnde 11 sind im AusfĆ¼hrungsbeispiel gemƤƟ Fig. 6 an Aufrolleinrichtungen 13 angeschlossen. Bei einer AbwƤrtsbewegung des Schrumpfrahmens 3 kƶnnen die an den Schrumpfrahmen 3 angeschlossenen flexiblen SeitenwƤnde 11 entsprechend dem Bewegungsfortschritt des Schrumpfrahmens 3 bei in ihrer Position bleibenden Deckplatte 6 von den Aufrolleinrichtungen 13 abgerollt werden. Es versteht sich, dass bei einer entgegengesetzten Bewegung des Schrumpfrahmens 3 die flexiblen SeitenwƤnde 11 auch wieder auf den Aufrolleinrichtungen 13 aufgerollt werden. ZweckmƤƟigerweise und im AusfĆ¼hrungsbeispiel nach Fig. 6 sind die flexiblen SeitenwƤnde 11 mit ihren unteren Enden fest mit dem Schrumpfrahmen 3 verbunden.In the embodiment according to Fig. 6 the side walls 11 are formed as flexible and heat-resistant or refractory side walls 11. The upper ends of these side walls 11 are according to the embodiment Fig. 6 connected to retractors 13. During a downward movement of the shrink frame 3, the flexible side walls 11 connected to the shrink frame 3 can be unrolled from the retractors 13 in accordance with the progress of movement of the shrink frame 3 with the cover plate 6 remaining in its position. It is understood that in an opposite movement of the shrink frame 3, the flexible side walls 11 are rolled back on the retractors 13. Conveniently, and in the embodiment according to Fig. 6 the flexible side walls 11 are connected at their lower ends fixed to the shrink frame 3.

Bei der AusfĆ¼hrungsform nach Fig. 7 ist die aus den SeitenwƤnden 11 und der Deckplatte 6 gebildete innere HĆ¼lle 14 von einer ƤuƟeren HĆ¼lle 15 mit oberer AuƟenplatte 16 und AuƟenseitenwƤnden 17 mit der MaƟgabe umschlossen, dass die aus der Deckplatte 6 austretenden erwƤrmten Gase in den zwischen innerer HĆ¼lle 14 und ƤuƟerer HĆ¼lle 15 gebildeten ZwischenrƤumen 18 zum Schrumpfrahmen 3 strƶmen kƶnnen. Auf diese Weise wird die Ć¼berschĆ¼ssige WƤrme der erwƤrmten Gase zur Reduzierung des Energieverbrauchs des Schrumpfrahmens 3 genutzt. ZweckmƤƟigerweise ist im AusfĆ¼hrungsbeispiel nach Fig. 7 sowohl die innere HĆ¼lle 14 als auch die ƤuƟere HĆ¼lle 15 mit dem Schrumpfrahmen 3 fest verbunden. Im AusfĆ¼hrungsbeispiel nach Fig. 7 sind die SeitenwƤnde 11 als starre SeitenwƤnde 11 ausgebildet und die Deckplatte 6 ist wie beim AusfĆ¼hrungsbeispiel der Fig. 1 in dem aus den starren SeitenwƤnden 11 gebildeten Rahmen vertikal verfahrbar. Fernerhin sind beim AusfĆ¼hrungsbeispiel nach Fig. 7 auch die AuƟenseitenwƤnde 17 starr ausgebildet. GrundsƤtzlich kƶnnten in dieser AusfĆ¼hrungsform aber auch die SeitenwƤnde 11 und/ oder die AuƟenseitenwƤnde 17 als flexible aufrollbare bzw. abrollbare WƤnde ausgebildet sein.In the embodiment according to Fig. 7 the inner shell 14 formed from the side walls 11 and the cover plate 6 is enclosed by an outer shell 15 with upper outer panel 16 and outer side walls 17 with the proviso that the heated gases emerging from the cover plate 6 in the between inner shell 14 and outer shell formed spaces 18 can flow to the shrink frame 3. In this way, the excess heat of the heated gases is used to reduce the energy consumption of the shrink frame 3. Appropriately, according to the embodiment Fig. 7 both the inner shell 14 and the outer shell 15 with the shrink frame 3 firmly connected. In the embodiment according to Fig. 7 are the side walls 11 formed as a rigid side walls 11 and the cover plate 6 is as in the embodiment of Fig. 1 in the frame formed from the rigid side walls 11 vertically movable. Furthermore, according to the embodiment Fig. 7 also the outer side walls 17 are rigid. In principle, in this embodiment, however, the side walls 11 and / or the outer side walls 17 may be formed as flexible rollable or unrollable walls.

Auch im AusfĆ¼hrungsbeispiel nach Fig. 8 ist eine ƤuƟere HĆ¼lle 15 Ć¼ber der inneren HĆ¼lle 14 vorgesehen. Hier sind aber die SeitenwƤnde 11 der inneren HĆ¼lle 14 und die AuƟenseitenwƤnde 17 der ƤuƟeren HĆ¼lle 15 faltenbalgartig ausgebildet. Durch ziehharmonikaartiges Zusammenfalten oder Auseinanderfalten der FaltenbƤlge kann sowohl die Deckplatte 6 als auch die obere AuƟenplatte 16 problemlos an verschiedene Hƶhen von Gutstapeln 2 angepasst werden und insbesondere das Raumvolumen V zwischen Deckplatte 6 und Oberseite 7 des Gutstapels 2 kann in AbhƤngigkeit vom Schrumpfvorgang und in AbhƤngigkeit von der Hƶhe des Gutstapels 2 angepasst werden.Also in the exemplary embodiment Fig. 8 an outer shell 15 is provided over the inner shell 14. Here, however, the side walls 11 of the inner shell 14 and the outer side walls 17 of the outer shell 15 are formed bellows. By concertina-like folding or unfolding of the bellows, both the cover plate 6 and the upper outer plate 16 can be easily adapted to different heights of stacks 2 and in particular the volume V between the cover plate 6 and the top 7 of the stack 2 can be adjusted depending on the shrinking process and in dependence on the height of the stack 2.

Claims (19)

  1. A device for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein a shrink frame (3) is provided, which can be displaced on the stack of goods (2) and surrounds the stack of goods (2) during the shrinkage of the shrink-wrap film (1), wherein the shrink frame (3) has a plurality of heating devices, distributed over the periphery thereof, for heating the shrink-wrap film (1) for the shrinking process,
    wherein a cover plate (6) covering the stack of goods (2) is furthermore present, which cover plate is arranged at a distance from the upper side (7) of the stack of goods (2) during the shrinking process in particular,
    wherein side walls (11) are provided below the cover plate (6), which extend along the stack of goods (2), and wherein intermediate spaces (12) for the upwardly flowing heated gases are formed between the stack of goods (2) and the side walls (11),
    wherein the cover plate (6) can be displaced to the upper side (7) of the stack of goods (2) and can be displaced away from the upper side (7) of the stack of goods (2),
    and wherein the side walls (11) form a rigid frame and wherein the cover plate (6) can be displaced within this frame.
  2. The device according to Claim 1, wherein the rigid frame can be suspended on the cover plate (6) and wherein the frame can be displaced in the suspended state with the cover plate (6).
  3. The device according to one of Claims 1 or 2, wherein the frame is combined with upper cover sections (22) to form a box and wherein in the state of the frame or box, in which it is suspended on the cover plate (6), the cover sections (22) bear against the cover plate (6).
  4. The device according to one of Claims 1 to 3, wherein a first partial frame or first partial box (20) and a second partial frame or second partial box (21) are provided, wherein the first partial box (20) engages or can engage into the second partial box (21) and wherein the cover plate can be displaced in the first partial box (20) and/or in the second partial box (21) for adjusting a spatial volume (V) between the stack of goods (2) and the cover plate (6).
  5. A device for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein a shrink frame (3) is provided, which can be displaced on the stack of goods (2) and surrounds the stack of goods (2) during the shrinkage of the shrink-wrap film (1), wherein the shrink frame (3) has a plurality of heating devices, distributed over the periphery thereof, for heating the shrink-wrap film (1) for the shrinking process,
    wherein a cover plate (6) covering the stack of goods (2) is furthermore present, which cover plate is arranged at a distance from the upper side (7) of the stack of goods (2) during the shrinking process in particular,
    wherein side walls (11) are provided below the cover plate (6), which extend along the stack of goods (2), and wherein intermediate spaces (12) for the upwardly flowing heated gases are formed between the stack of goods (2) and the side walls (11),
    and wherein the side walls (11) consist of a flexible material, so that during a downwards movement of the shrink frame (3), they can be rolled down from roll-up devices (13) arranged on the cover plate (6) in accordance with the progress of the downwards movement of the shrink frame (3).
  6. The device according to one of Claims 1 to 5, wherein the inner shell (14) formed from the side walls (11) and the cover plate (6) is enclosed by an outer shell (15) with upper outer plate (16) and outer side walls (17) with the proviso that the heated gases escaping from the cover plate (6) can flow in the intermediate spaces formed between the inner shell (14) and outer shell (15) to the shrink frame (3) or in particular vertically downwards to the shrink frame (3).
  7. A device for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein a shrink frame (3) is provided, which can be displaced on the stack of goods (2) and surrounds the stack of goods (2) during the shrinkage of the shrink-wrap film (1), wherein the shrink frame (3) has a plurality of heating devices, distributed over the periphery thereof, for heating the shrink-wrap film (1) for the shrinking process,
    wherein a cover plate (6) covering the stack of goods (2) is furthermore present, which cover plate is arranged at a distance from the upper side (7) of the stack of goods (2) during the shrinking process in particular,
    wherein side walls (11) are provided below the cover plate (6), which extend along the stack of goods (2), and wherein intermediate spaces (12) for the upwardly flowing heated gases are formed between the stack of goods (2) and the side walls (11),
    and wherein the inner shell (14) formed from the side walls (11) and the cover plate (6) is enclosed by an outer shell (15) with upper outer plate (16) and outer side walls (17) with the proviso that the heated gases escaping from the cover plate (6) can flow in the intermediate spaces formed between the inner shell (14) and outer shell (15) to the shrink frame (3) or in particular vertically downwards to the shrink frame (3), wherein the side walls (11) are constructed as rigid side walls, and the cover plate (6) can be displaced vertically in the frame formed from the rigid side walls (11).
  8. The device according to Claim 7, wherein the side walls (11) of the inner shell (14) and/or the outer side walls (17) of the outer shell (15) can be rolled up on roll-up devices (13) or can be rolled down from the roll-up devices (13).
  9. The device according to one of Claims 5 to 8, wherein the cover plate (6) can be displaced to the upper side (7) of the stack of goods (2) and can be displaced away from the upper side (7) of the stack of goods (2).
  10. The device according to one of Claims 1 to 9, wherein the side walls (11) or the lower ends of the side walls (11) are securely connected to the shrink frame (3).
  11. The device according to one of Claims 1 to 10, wherein the cover plate (6) covering the stack of goods (2) has at least one discharge opening (8) for the discharging of heated gases created during the shrinking process, wherein at least one fan (9) is preferably present on or in the cover plate (6), using which heated gases can be exhausted or using which cool gases or cool air can be supplied.
  12. The device according to one of Claims 1 to 11, wherein the cover plate (6) can be displaced or can be moved independently of the displaceability of the shrink frame (3).
  13. A method for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein the shrink-wrap film (1) is shrunk onto the stack of goods (2) by means of a shrink frame (3), wherein to this end the shrink frame (3) - surrounding the stack of goods (2) - can be displaced on the stack of goods (2), wherein the shrink-wrap film (1) is heated for shrinking using a plurality of heating devices distributed over the periphery of the shrink frame (3),
    wherein a cover plate (6) arranged above the stack of goods (2) is displaced towards the stack of goods (2) or away from the stack of goods (2) to adjust a spatial volume (V) between the cover plate (6) and the stack of goods (2),
    wherein heated gases created during the shrinking process flow through intermediate spaces (12), which are constructed between the stack of goods (2) and side walls (11) attached on the shrink frame (3), wherein the heated gases are preferably drawn off by means of at least one discharge opening (8) provided in the cover plate (6),
    and wherein the cover plate (6) is displaced in a rigid frame formed from rigid side walls (11) during displacement in the direction of the stack of goods (2) and during displacement in the opposite direction.
  14. A method for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein the shrink-wrap film (1) is shrunk onto the stack of goods (2) by means of a shrink frame (3), wherein to this end the shrink frame (3) - surrounding the stack of goods (2) - can be displaced on the stack of goods (2), wherein the shrink-wrap film (1) is heated for shrinking using a plurality of heating devices distributed over the periphery of the shrink frame (3),
    wherein a cover plate (6) arranged above the stack of goods (2) is displaced towards the stack of goods (2) or away from the stack of goods (2) to adjust a spatial volume (V) between the cover plate (6) and stack of goods (2),
    wherein heated gases created during the shrinking process flow through intermediate spaces (12), which are constructed between the stack of goods (2) and side walls (11) attached on the shrink frame (3), wherein the heated gases are preferably drawn off by means of at least one discharge opening (8) provided in the cover plate (6),
    and wherein the side walls (11) are rolled onto at least one roll-up device (13) as flexible side walls (11) during the displacement of the cover plate (6) in the direction of the stack of goods (2) and wherein the side walls (11) are rolled down again from the roll-up device (13) during the displacement of the cover plate (6) in the opposite direction.
  15. A method for shrinking a shrink-wrap film (1) onto a stack of goods (2), wherein the shrink-wrap film (1) is shrunk onto the stack of goods (2) by means of a shrink frame (3), wherein to this end the shrink frame (3) - surrounding the stack of goods (2) - can be displaced on the stack of goods (2), wherein the shrink-wrap film (1) is heated for shrinking using a plurality of heating devices distributed over the periphery of the shrink frame (3),
    wherein a cover plate (6) arranged above the stack of goods (2) is displaced towards the stack of goods (2) or away from the stack of goods (2) to adjust a spatial volume (V) between the cover plate (6) and stack of goods (2),
    wherein heated gases created during the shrinking process flow through intermediate spaces (12), which are constructed between the stack of goods (2) and side walls (11) attached on the shrink frame (3), wherein the heated gases are preferably drawn off by means of at least one discharge opening (8) provided in the cover plate (6),
    and wherein the inner shell (14) formed from the side walls (11) and the cover plate (6) is enclosed by an outer shell (15) with upper outer plate (16) and outer side walls (17) with the proviso that the heated gases escaping from the cover plate (6) can flow in the intermediate spaces formed between the inner shell (14) and outer shell (15) to the shrink frame (3) or in particular vertically downwards to the shrink frame (3), and wherein the side walls (11) are constructed as rigid side walls, and the cover plate (6) can be displaced vertically in the frame formed from the rigid side walls (11).
  16. The method according to one of Claims 14 to 15, wherein the shrink frame (3) is initially displaced at least up to the lower side of the stack of goods (2) and is subsequently displaced towards the upper side (7) of the stack of goods (2) with actuation of the heating devices to heat and to shrink the shrink-wrap film (1).
  17. The method according to Claim 16, wherein the heating devices are also already actuated when the shrink frame (3) is displaced to the lower side of the stack of goods (2) to heat the shrink-wrap film (1).
  18. The method according to one of Claims 14 to 17, wherein the heating power of the heating devices is reduced if the shrink-wrap film (1) is heated by the heated gases flowing to the cover plate (6).
  19. The method according to one of Claims 14 to 18, wherein the heated gases are exhausted through the at least one discharge opening (8) in the cover plate (6) with the aid of at least one fan (9).
EP13708812.6A 2012-03-12 2013-03-11 Device and method for shrinking a shrink film onto a stack of goods Active EP2825468B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13708812.6A EP2825468B1 (en) 2012-03-12 2013-03-11 Device and method for shrinking a shrink film onto a stack of goods

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12159066.5A EP2639166A1 (en) 2012-03-12 2012-03-12 Device and method for shrink-fitting a stack of goods with shrink film
EP13708812.6A EP2825468B1 (en) 2012-03-12 2013-03-11 Device and method for shrinking a shrink film onto a stack of goods
PCT/EP2013/054887 WO2013135634A1 (en) 2012-03-12 2013-03-11 Device and method for shrinking a shrink film onto a stack of goods

Publications (2)

Publication Number Publication Date
EP2825468A1 EP2825468A1 (en) 2015-01-21
EP2825468B1 true EP2825468B1 (en) 2016-11-02

Family

ID=47846027

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12159066.5A Withdrawn EP2639166A1 (en) 2012-03-12 2012-03-12 Device and method for shrink-fitting a stack of goods with shrink film
EP13708812.6A Active EP2825468B1 (en) 2012-03-12 2013-03-11 Device and method for shrinking a shrink film onto a stack of goods

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12159066.5A Withdrawn EP2639166A1 (en) 2012-03-12 2012-03-12 Device and method for shrink-fitting a stack of goods with shrink film

Country Status (6)

Country Link
US (1) US20140366488A1 (en)
EP (2) EP2639166A1 (en)
KR (2) KR20140138263A (en)
CN (1) CN104203755B (en)
MX (1) MX346599B (en)
WO (1) WO2013135634A1 (en)

Families Citing this family (6)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015107021U1 (en) * 2015-12-22 2017-03-24 Msk - Verpackungs-Systeme Gmbh Shrink frame with at least one connectable to a fan air inlet for supplying blown air
CN105819035A (en) * 2016-05-31 2016-08-03 å®ę³¢å·„ē؋学院 Shrink wrapping machine
CN105857762A (en) * 2016-05-31 2016-08-17 å®ę³¢å·„ē؋学院 Shrink packaging machine
CN105857763A (en) * 2016-05-31 2016-08-17 å®ę³¢å·„ē؋学院 Heat shrinkage packaging machine
CN106005602A (en) * 2016-06-30 2016-10-12 č‹å·žåø‚ē››ē™¾åØåŒ…č£…č®¾å¤‡ęœ‰é™å…¬åø Hot shrinkable film machine capable of preventing labels from being wetted
CN106005604A (en) * 2016-06-30 2016-10-12 č‹å·žåø‚ē››ē™¾åØåŒ…č£…č®¾å¤‡ęœ‰é™å…¬åø Energy-saving heat shrinkable film machine

Family Cites Families (13)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611861A1 (en) * 1968-03-01 1971-02-04 Hirsch & Co Ing Method and device for shrinking shrink films onto goods
FR2082861A5 (en) * 1970-03-25 1971-12-10 Hurdequint Louis Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets
FR2181141A5 (en) * 1972-04-18 1973-11-30 Lucas Jean Louis
US3723708A (en) * 1972-05-18 1973-03-27 M Tulkoff Apparatus for heat shrinking material about loaded pallet
US3831340A (en) * 1973-03-26 1974-08-27 M Tulkoff Method for compacting thermoplastic film material and apparatus therefor
US4146777A (en) * 1975-11-11 1979-03-27 Black Body Corporation Heat conserver for bell-type ovens
US4147197A (en) * 1977-06-20 1979-04-03 Overhead Door Corporation Fire door and operator therefor
FR2564033B1 (en) * 1984-05-10 1987-01-02 Thimon Ste Nouvelle Exploit METHOD FOR HEATING - WITH A VIEW TO RETRACTING IT - A HEAT SHRINKABLE PLASTIC SHEATH COVERING A LOAD AND A MACHINE FOR CARRYING OUT THE METHOD
NO900771L (en) 1989-03-10 1990-09-11 Msk Verpackung Syst Gmbh DEVICE FOR TREATMENT OF SHRINKLE PLASTIC.
ES2191898T3 (en) * 1998-11-05 2003-09-16 Lachenmeier Kurt Aps PROCEDURE AND DEVICE FOR THE CONTRACTION OF A SHEET ON AN OBJECT.
FR2858297B1 (en) * 2003-07-31 2006-01-20 Sleever Int METHOD AND THERMORETRACTION MACHINE FOR THERMORETRACTABLE SLEEVES, INDIVIDUALLY SIDED ON OBJECTS SUCH AS BOTTLES
DE202005020192U1 (en) * 2005-10-24 2006-05-24 MSK-Verpackungs-Systeme Gesellschaft mit beschrƤnkter Haftung Device for shrinking a heat-shrinkable film placed around a, in particular palletized, stack of goods
CN200974627Y (en) * 2006-09-05 2007-11-14 孙ę»Ø Tray shrink packing machine

Also Published As

Publication number Publication date
US20140366488A1 (en) 2014-12-18
KR20170055566A (en) 2017-05-19
MX346599B (en) 2017-03-24
KR20140138263A (en) 2014-12-03
MX2014010914A (en) 2015-03-03
EP2825468A1 (en) 2015-01-21
EP2639166A1 (en) 2013-09-18
KR101857934B1 (en) 2018-05-14
CN104203755A (en) 2014-12-10
CN104203755B (en) 2016-10-26
WO2013135634A1 (en) 2013-09-19

Similar Documents

Publication Publication Date Title
EP2825468B1 (en) Device and method for shrinking a shrink film onto a stack of goods
EP1940686B1 (en) Method and device for shrinking a heat shrink film placed around a stack of items, in particular a palleted stack of items
EP2740673B1 (en) Method and device for applying a film to a stack of goods
DE2841101A1 (en) DRYING DEVICE
EP2712267B1 (en) Induction cooking hob with a housing
DE2153001A1 (en) PROCESS AND DEVICE FOR SHRINKING GOODS IN PLASTIC FILM
DE19920057A1 (en) Method and device for packaging objects in shrink film
DE4424845C2 (en) Cover plate for vacuum molding machines
EP0200941B1 (en) Device for covering and shrinking piles of goods with shrinkable hoods
EP2771630B1 (en) Cooling device
EP0283541B1 (en) Method and apparatus for shrinking a plastic hood around a palletized load
DE69019306T3 (en) Dryer with improved air duct arrangement.
EP0649791A1 (en) Method and device for shrinking a shrinkable film hood
DE3924577B4 (en) Method and device for packaging objects with a tubular plastic film
EP0933297A1 (en) Method and apparatus for packaging a load
DE202016102826U1 (en) A heat shrinking device for packaging with heat-shrinkable film equipped with sectioned burners
EP3214003A1 (en) Method and apparatus for shrinking a heat shrink film placed around a stack of items, particularly one which is on a palette
DE9310218U1 (en) Device for shrinking a shrink hood pulled over a stack of goods
DE3117273A1 (en) Process and device for shrinking a film tube covering one or more articles
EP0030346B1 (en) Device for shrinking shrinkable wrappings drawn over a stack of produce
DE60201613T2 (en) Energy-saving device for packaging products with hot-shrinking film
EP0177917B1 (en) Tunnel furnace with two paralel ducts
EP2623423B1 (en) Assembly for a shrink film heater
DE1756327A1 (en) Device for loading and unloading pallets
DE3437237C2 (en)

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: 20140728

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502013005173

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B65B0053060000

Ipc: B65B0053020000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B65B 53/02 20060101AFI20160502BHEP

Ipc: B65B 53/06 20060101ALI20160502BHEP

Ipc: B65B 59/00 20060101ALI20160502BHEP

INTG Intention to grant announced

Effective date: 20160531

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: AT

Ref legal event code: REF

Ref document number: 841569

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161115

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013005173

Country of ref document: DE

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

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: 20161102

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20161102

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

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

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: 20170203

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: 20161102

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: 20161102

Ref country code: NO

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: 20170202

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: 20161102

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

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: 20161102

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: 20170302

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: 20161102

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: 20161102

Ref country code: RS

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: 20161102

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: 20170302

Ref country code: HR

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: 20161102

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: 20161102

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: 20161102

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: 20161102

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: 20161102

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: 20161102

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013005173

Country of ref document: DE

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

Ref country code: SM

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: 20161102

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: 20170202

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: 20170803

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: 20170311

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

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: 20161102

Ref country code: MC

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: 20161102

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20170311

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

Ref country code: CH

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

Effective date: 20170331

Ref country code: GB

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

Effective date: 20170311

Ref country code: IE

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

Effective date: 20170311

Ref country code: LI

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

Effective date: 20170331

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170331

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

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: 20170331

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: 20161102

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 841569

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180311

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

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; INVALID AB INITIO

Effective date: 20130311

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

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: 20161102

Ref country code: AT

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

Effective date: 20180311

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

Ref country code: MK

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: 20161102

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: 20161102

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

Ref country code: AL

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: 20161102

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

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

Ref country code: DE

Payment date: 20240228

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20240329

Year of fee payment: 12

Ref country code: FR

Payment date: 20240328

Year of fee payment: 12