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EP3733528A1 - Outil de scellage et procédé de scellage de barquettes - Google Patents

Outil de scellage et procédé de scellage de barquettes Download PDF

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Publication number
EP3733528A1
EP3733528A1 EP20163626.3A EP20163626A EP3733528A1 EP 3733528 A1 EP3733528 A1 EP 3733528A1 EP 20163626 A EP20163626 A EP 20163626A EP 3733528 A1 EP3733528 A1 EP 3733528A1
Authority
EP
European Patent Office
Prior art keywords
plate
tool
sealing
recess
sealing tool
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.)
Granted
Application number
EP20163626.3A
Other languages
German (de)
English (en)
Other versions
EP3733528B1 (fr
Inventor
Andreas Mader
Thomas Zedelmaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Publication of EP3733528A1 publication Critical patent/EP3733528A1/fr
Application granted granted Critical
Publication of EP3733528B1 publication Critical patent/EP3733528B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164Securing by heat-sealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B65B31/028Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/046Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842Securing closures on containers
    • B65B7/2878Securing closures on containers by heat-sealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material

Definitions

  • the invention relates to a sealing tool according to the preamble of claim 1 and to a method for evacuating and / or gassing and sealing packaging trays.
  • Tray closing machines and corresponding sealing tools are z. B, from the DE 10 2012 005 891 A1 known. They usually include an upper tool and a lower tool.
  • conventional sealing tools have channels that are configured for sucking off and / or introducing gas. Since in this process the cover film, which is initially a film web, is clamped between the upper tool and the lower tool, existing sealing tools have partly branched, but in any case difficult to access channels, so that both the inside of the packaging to be closed and the chamber surrounding it up to can be evacuated and / or gassed at the desired level.
  • a tool which has a so-called clamping frame. This is set up to initially clamp the cover film to the upper part of the tool.
  • channels are provided within this clamping frame, which are used for gassing the packaging tray to be closed.
  • the invention provides a sealing tool for a tray sealing machine.
  • the sealing tool comprises an upper tool and a lower tool with a main body, the one Has shell recess for receiving at least a part of a shell to be closed, and a shell carrier, wherein a gas channel runs through the shell carrier.
  • the sealing tool is characterized in that the tray carrier comprises a first plate with a first pressing surface and a second plate with a second pressing surface and the first plate has a first recess extending from the first pressing surface, the first recess having at least one Forms portion of the gas channel when the first plate and the second plate are pressed against one another on the first and second pressure surfaces.
  • the shell support can be divided along a separating surface, which can be shaped as desired.
  • the separating surface can preferably be a plane to which the closing direction of the sealing tool, in particular the direction of movement in which the upper tool and the lower tool move towards one another, runs perpendicularly.
  • a depth of the depression which can be defined perpendicular to the first pressure surface, can in particular be provided to be smaller than the extent of the depression parallel to the first pressure surface. Said depth can preferably be smaller than a thickness of the first plate, wherein the thickness of the first plate can also be defined perpendicular to the pressure surface.
  • a section of the gas duct can be formed, for example, in that the second pressing surface covers an opening surface of the recess, which can run parallel to the first pressing surface.
  • the configuration described above can facilitate the manufacture and, in particular, the cleaning of the tray support, since after the first plate has been separated from the second plate, the section of the gas channel, which is partially formed by the depression, is more accessible.
  • the main body and the second plate are immovably connected to one another relative to one another during the operation of the sealing tool. In this way, both can be moved with one and the same drive, which reduces the drive and control effort. It is particularly favorable if the first plate is connected to the second plate during the operation of the sealing tool, so that the first and second plates are arranged immovably with respect to one another. This can further reduce the drive and control effort.
  • Toolless fastening devices can be provided for connecting the second plate to the main body and / or connecting the first plate to the second plate his.
  • tool-free fastening devices can be provided which hold the main body, the second plate and the first plate immovable with respect to one another during the operation of the sealing tool.
  • Toolless fastening devices can significantly reduce the assembly and disassembly effort. Cleaning can also be simplified.
  • a projection can be provided on the second pressing surface, which projection is configured to extend into the depression in the pressed-on state. This makes it possible to specifically influence the flow direction of the gas in the gas channel, for example in order to give the gas flow a specific direction. It is conceivable that the depression, in the pressed-on state, forms a funnel-shaped end section of the gas channel together with the projection.
  • the projection can be made in one piece with the second plate.
  • the end section which can also be designed in any other shape than a funnel shape, can be provided, for example, as an inlet or outlet for a gas.
  • a section which opens directly into a sealing chamber of the sealing tool can be regarded as the end section of the gas channel.
  • a funnel-shaped shaping of the end section of the gas channel can enable a targeted collection and / or distribution of a gas flow. This allows z. B. the flow rate of the gas can be influenced.
  • the second plate can have a second depression which extends from the second pressing surface, the first and the second depression together forming a section of the gas duct in the pressed-on state.
  • This section can be an end section or another section of the gas channel.
  • the invention also relates to a method for evacuating and / or gassing and sealing packaging trays by means of a sealing tool which contains a lower tool with a main body and a tray carrier which comprises a first plate and a second plate, and an upper tool.
  • the method comprises inserting a packaging tray into the second plate of the tray carrier, the second plate having a second pressing surface, closing the sealing tool by pressing the upper tool and the lower tool against one another, pressing the second plate of the tray carrier against the first plate so that the second pressing surface and a first pressure surface that is attached to the first plate is provided, abut against each other, whereby at least a portion of a gas channel is formed for evacuating and / or gassing the packaging tray, evacuating and / or gassing the packaging tray, and sealing the tray with a cover film.
  • the method can include clamping the cover film to the upper tool by means of the first plate before the sealing tool is closed. This means that the use of a separate clamping frame for clamping the cover film to the upper tool can be dispensed with, which means that the number of parts can remain constant compared to conventional sealing tools or processes with a one-piece tray carrier and clamping frame.
  • first plate is pressed against the second plate while the sealing tool is being closed. This makes it possible to press the first plate against the second plate and to close the sealing tool at the same time, thus saving time, which can increase the efficiency of the method or of the tray sealing machine.
  • the first plate can be pressed against the second plate before the sealing tool is closed. This can be particularly advantageous in designs in which the cover film is not intended to be clamped onto the upper tool by the first plate. It is in particular conceivable here that, as already mentioned above, the first plate is connected to the second plate in such a way that they are immovable relative to one another during operation of the sealing tool. Furthermore, it is conceivable that, in addition, the main body of the lower tool is immovably connected to the first plate and the second plate during operation.
  • Fig. 1 shows an example of a packaging machine 1.
  • the packaging machine 1 can have a feed belt 7. It can also have a closing station 9. Filled but at this point in time still unclosed trays 8 can be conveyed to the closing station 9 by the feed belt 7.
  • the trays 8 can be transferred to the closing station 9 with a gripper device 11 and closed there with a cover film 5 (film) fed in from above, for example by sealing the cover film 5.
  • the closing station 9 can include a sealing tool 10, which is later will be described in more detail.
  • the packaging completed in this way can be transferred from the closing station 9 to a discharge belt 15 via the gripper device 11.
  • regions of the cover film 5 corresponding to the packaging or packaging assemblies can be cut out of the web of the cover film 5 in the closing station 9.
  • a residual film grid of the cover film 5 remains, which is wound up with a device 3 for winding up the film 5.
  • the sealing tool 10 can be seen in a perspective view.
  • the sealing tool 10 can comprise an upper tool 12 and a lower tool 13. These can be moved towards one another in a closing direction S in order to close the sealing tool 10.
  • the lower tool 13 can, as shown in the figure, contain a main body 14. This can for example be mounted on a lifting mechanism (not shown), which can be configured to move the lower tool 13 in the To move the closing direction S towards the upper tool 12.
  • the lower tool 13 can also have a shell carrier 16 (see Figure 4 ) exhibit. As can be seen in the figure, this can be provided on that side of the main body 14 which faces the upper tool 12.
  • the shell support 16 can comprise a first plate 17 and a second plate 18. Even if the first plate is 17 in Figure 2 is shown closer to the upper tool 12 than to the other components of the lower tool 13, it (the first plate 17) is to be regarded as part of the lower tool 13 due to its function.
  • a shell recess 19 can be provided in the main body 14 which can be configured to receive at least a part of the shell 8 to be closed.
  • the first plate 17 can have a first pressing surface 20 (see Figure 5 ) exhibit.
  • the second plate 18 can have a second pressure surface 21. The first plate 17 and the second plate 18 can be pressed against one another with the first pressing surface 20 and the second pressing surface 21, whereby the shell carrier 16 can be formed. This is discussed below with reference to the Figures 4-6 will be explained in more detail.
  • fastening devices 22 can be seen. As shown in the present exemplary embodiment, these can be configured to connect the second plate 18 to the main body 14 in such a way that the main body 14 and the second plate 18 are immovable with respect to one another during operation of the sealing tool 10.
  • the fastening devices 22 can be designed to also connect the first plate 17 to the main body 14 and the second plate 18 in such a way that the first and second plates 17, 18 and the main body 14 are connected to one another in such a way that they are immovable to one another during operation of the sealing tool 10.
  • the sealing tool 10 is shown in a closed state.
  • the shell carrier 16 is shown in perspective as a separate assembly which contains the first plate 17 and the second plate 18.
  • the shell carrier 16 can have shell openings 23. These can, for example together with the shell recesses 19 in the main body of the lower tool, form a lower part of a sealing chamber.
  • the shell carrier 16 can furthermore have a carrier edge 24. Such a can preferably be provided circumferentially around one of the shell openings 23.
  • a flange provided on the shell 8 can be attached to the Support edge 24 are placed.
  • the support frame 24 can serve as a counter bearing for a sealing plate.
  • the shell support 16 gas and / or evacuation openings 25 exhibit.
  • the first plate is shown in perspective. Compared to the representation in Figure 4 the first plate 17 is rotated by 180 ° about an axis which runs parallel to the longer side of the shell support 16. This makes the first pressing surface 20 visible.
  • a first recess 26 can now also be seen, which can be provided in the first plate 17. In particular, it can extend from the first pressing surface 20, preferably in a direction perpendicular to the first pressing surface.
  • a groove 27 can be provided in the first pressure surface, in which a seal can be placed.
  • first depressions 26 can be provided which have different shapes.
  • a first evacuation depression 26a can be provided, for example.
  • a first gassing depression 26b can be provided.
  • the former can be used in the in Figure 4
  • the illustrated state of the shell support 16 form a section of an evacuation channel, while the latter in FIG Figure 4
  • the illustrated state of the shell support 16 can form a section of a gassing channel.
  • the second plate 18 is shown. Across from Figure 4 the missing first plate 17 exposes the second pressure surface 21.
  • a projection 28 can be provided on the second pressing surface 21. This can be configured to be in the in Figure 4 The illustrated state of the shell support 16 to extend into the first recess, in particular into the first gassing recess 26b.
  • a second recess 29 can be provided, which can extend from the second pressure surface 21.
  • the second plate 18 can have evacuation holes 30. These can be set up in the in Figure 4 the state shown to connect the first recess 26 to the lower part of the sealing chamber. In particular, it can be prevented that the shell 8 received in the shell carrier 16 is undesirably deformed during evacuation.
  • FIG. 16 is a sectional view of the tray support 16 in FIG Figure 4 shown condition.
  • the first recess 26 can form a section 31 of a gas channel 32 when the first plate 17 and the second plate 18 are pressed against one another on the first and second pressing surfaces 20, 21, respectively.
  • the section 31 can be an end section 31 of the gas duct 32.
  • any section of the gas channel can also be formed.
  • the end section 31 can be an inlet or an outlet through which gas can be introduced into the gas duct 32 or discharged from it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Closing Of Containers (AREA)
EP20163626.3A 2019-05-02 2020-03-17 Outil de scellage et procédé de scellage de barquettes Active EP3733528B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019206280.6A DE102019206280A1 (de) 2019-05-02 2019-05-02 Siegelwerkzeug und Verfahren zum Versiegeln von Schalen

Publications (2)

Publication Number Publication Date
EP3733528A1 true EP3733528A1 (fr) 2020-11-04
EP3733528B1 EP3733528B1 (fr) 2022-02-09

Family

ID=69845198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20163626.3A Active EP3733528B1 (fr) 2019-05-02 2020-03-17 Outil de scellage et procédé de scellage de barquettes

Country Status (4)

Country Link
US (1) US11492160B2 (fr)
EP (1) EP3733528B1 (fr)
DE (1) DE102019206280A1 (fr)
ES (1) ES2912725T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300007956A1 (it) * 2023-04-21 2024-10-21 G Mondini S P A Apparecchiatura per effettuare una lavorazione su un oggetto alloggiato in un trasportatore

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EP1842776A2 (fr) * 2006-04-05 2007-10-10 A.W.A.X. PROGETTAZIONE E RICERCA S.r.l. Appareil pour emballer des plateaux contenant des produits dans une atmosphère modifiée
US20110072764A1 (en) * 2009-09-30 2011-03-31 Ross Industries, Inc. Method and apparatus for sealing containers
WO2011092103A1 (fr) 2010-01-26 2011-08-04 Gruppo Fabbri S.P.A. Appareil pour le conditionnement sous atmosphère modifiée de produits placés dans des barquettes
DE102012005891A1 (de) 2012-03-23 2013-09-26 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit Siegelstation zum Begasen einer Verpackung
WO2018193382A1 (fr) * 2017-04-19 2018-10-25 Cryovac, Inc. Appareil et procédé d'emballage de produits

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EP1842776A2 (fr) * 2006-04-05 2007-10-10 A.W.A.X. PROGETTAZIONE E RICERCA S.r.l. Appareil pour emballer des plateaux contenant des produits dans une atmosphère modifiée
US20110072764A1 (en) * 2009-09-30 2011-03-31 Ross Industries, Inc. Method and apparatus for sealing containers
WO2011092103A1 (fr) 2010-01-26 2011-08-04 Gruppo Fabbri S.P.A. Appareil pour le conditionnement sous atmosphère modifiée de produits placés dans des barquettes
DE102012005891A1 (de) 2012-03-23 2013-09-26 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit Siegelstation zum Begasen einer Verpackung
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300007956A1 (it) * 2023-04-21 2024-10-21 G Mondini S P A Apparecchiatura per effettuare una lavorazione su un oggetto alloggiato in un trasportatore
EP4455026A1 (fr) * 2023-04-21 2024-10-30 G. Mondini SpA Appareil pour effectuer une opération de traitement sur un objet logé dans un transporteur

Also Published As

Publication number Publication date
EP3733528B1 (fr) 2022-02-09
US20200346802A1 (en) 2020-11-05
DE102019206280A1 (de) 2020-11-05
US11492160B2 (en) 2022-11-08
ES2912725T3 (es) 2022-05-27

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