EP1440887B1 - Verfahren und Vorrichtung zur Verpackung in Vakuum und/oder Schutzgasatmosphäre - Google Patents

Verfahren und Vorrichtung zur Verpackung in Vakuum und/oder Schutzgasatmosphäre Download PDF

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Publication number
EP1440887B1
EP1440887B1 EP04000962A EP04000962A EP1440887B1 EP 1440887 B1 EP1440887 B1 EP 1440887B1 EP 04000962 A EP04000962 A EP 04000962A EP 04000962 A EP04000962 A EP 04000962A EP 1440887 B1 EP1440887 B1 EP 1440887B1
Authority
EP
European Patent Office
Prior art keywords
tray
lid
container
sealing
station
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.)
Expired - Lifetime
Application number
EP04000962A
Other languages
English (en)
French (fr)
Other versions
EP1440887A1 (de
Inventor
Attilio Vignoni
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.)
Vacuum Pump SpA
Original Assignee
Vacuum Pump SpA
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 Vacuum Pump SpA filed Critical Vacuum Pump SpA
Publication of EP1440887A1 publication Critical patent/EP1440887A1/de
Application granted granted Critical
Publication of EP1440887B1 publication Critical patent/EP1440887B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B7/26Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by closing hinged lids
    • 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

Definitions

  • the present invention refers in general to the field of vacuum and/or protective atmosphere packaging and in particular to a method and to an apparatus for packaging products, in particular food products, in a vacuum and/or in a protective atmosphere.
  • Said packaging system according to the prior art has various drawbacks. In fact, once the tray is opened by the end user by removing the covering film, the contents of the tray must be consumed because the tray cannot be closed again.
  • US 3,481, 100 discloses a method and an apparatus for packaging products in protective atmosphere into a package comprising a container hermetically sealed by a portion of a thin, flexible sheet.
  • the package further comprises an inner cover, not sealed to the container, which is formed separated from the container, is gripped by a reciprocating head and is deposed on the container before sealing it through said portion of a thin, flexible sheet.
  • the object of the present invention is to overcome the drawbacks of the prior art by providing a method for vacuum and/or protective atmosphere packaging that is versatile, efficient and able to allow high-speed, continuous production.
  • Another object of the invention is to provide an apparatus for vacuum and/or protective atmosphere packaging that is simple to make.
  • the peculiar characteristic of the invention is represented by the use of a container comprising a tray with a lid integral with/hinged to the tray. In this manner closing of the container takes place simply by lowering the lid on the tray.
  • the process of packaging must provide a first stage of semi-closing of the lid so as to leave a gap for removal of the air and/or for introduction of gas into the container, and a second stage of complete closing of the lid and of heat-sealing or sealing thereof to avoid tampering with the container and/or the product.
  • Such a package according to the invention offers the end user the possibility of opening and of subsequently closing it by wedging of the lid into the tray.
  • the apparatus 1 comprises a conveying station 2, a filling station 6, a semi-closing station 3, a station 4 for creating the vacuum and/or the protective atmosphere and for heat-sealing and a discharging station 5.
  • the conveying station 2 comprises a horizontal conveyor belt 20 supported by a main frame 21 resting on the ground.
  • a plurality of containers 100 able to contain the products destined to be put in a vacuum and/or in a protective atmosphere, is fed on the conveyor belt 20.
  • each container 100 is a tray 101 of thermoformed plastic material, open at the top.
  • a lid 103 able to close the tray 101 hermetically, is connected integrally to a portion 102 of the upper edge of the tray 101.
  • the connecting portion 102 behaves as a hinge and the lid 103, rotating around the hinging axis 102, can pass from an opening position to a closing position of the tray 101.
  • the lid 103 is thermoformed together with the tray 101 and in normal conditions the lid 103 remains in the open position with respect to the tray 101.
  • the upper edge of the tray 101 and the peripheral edge of the lid 103 are able to engage mutually with each other by interference, to maintain the lid 103 in the closing position.
  • the empty containers 100 are conveyed from the conveyor belt 20 toward the filling station 6, disposed in two parallel rows, with the lids 103 completely open and disposed towards the outside. Even if in the Figures the containers 100 are shown disposed on two rows, they can be disposed on one or more rows.
  • the conveyor 20 has two side bars 23 integral with the sides of its frame.
  • the side bars 23 are parallel to each other and horizontal. In this manner the lids 103 of the containers as they pass through the filling station 6 remain above the horizontal side bars 23.
  • the filled containers 100 continue their transfer on the conveyor belt 20 towards the semi-closing station 3. During this transfer the side bars 23 of the conveyor continue with two guide bars 31, convergent and inclined upwards. In this manner the bars 31 cause raising of the lids 103 of the containers bringing them towards the closing position.
  • Semi-closing of the container 100 takes place by means of shaped guides 34 suitably inclined downwards or by means of mechanical or pneumatic actuators 32 which are responsible for lowering the lid 103 onto the tray 101.
  • the filled and semi-closed containers 100 continue on the conveyor belt 20 towards the station 4 for creating a vacuum and/or a protective atmosphere and for heat-sealing.
  • the lids 103 of the containers remain beneath the parallel horizontal bars 33 which serve to keep the lids 103 in their semi-closed position.
  • a press comprising a lower half-mould 41 and an upper half-mould 42.
  • pneumatic means 43 for suction and introduction of gas and thermal means 44 for heat-sealing are provided on the upper half-mould 42.
  • the suction means 43 suck the air from the inside of the container 100 so as to create the vacuum.
  • the introduction means 43 introduce suitable gases into the container so as to create a protective atmosphere. According to the characteristics of the product contained in the containers 100, gases such as oxygen O 2 , carbon dioxide CO 2 or nitrogen N 2 can be introduced.
  • the edge of the container 100 is sandwiched between the lower half-mould 41 and the upper half-mould 42, closed hermetically and sealed by means of the thermal heat-sealing means 44, so as to avoid tampering with the container 100 and the product, before it reaches the end user.
  • the container 100 is made of particular plastic materials (easy open) which allow heat-sealing and easy opening of the container 100. In this way, if the consumer intends to use up the product in more than one time, there is the possibility of closing again by wedging the lid 103 of the container.
  • the apparatus 100 can provide a reel 70 of plastic film 71 which can be used in a per se known manner for closing of the trays 101, if said trays are not provided with a reclosable lid.
  • the reel 70 is disposed above and upstream of the station 4 for creating a vacuum and/or a protective atmosphere and for heat-sealing, whilst the waste film 71' is collected by a winder 42 disposed downstream of the station 4.
  • the product On leaving the station 4 for creating a vacuum and/or a protective atmosphere and for heat-sealing, the product is perfectly packaged in a vacuum and/or in a protective atmosphere inside the container 100.
  • the container 100 is then discharged from the apparatus 1 though a slide 50 or a conveyor belt of the discharge station 5 to be sent for transport and/or storage.

Landscapes

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

Claims (8)

  1. Verfahren zum Verpacken von Produkten, insbesondere Lebensmittelprodukten, in einem Vakuum und/oder einer Schutzgasatmosphäre, umfassend die folgenden Schritte:
    - Zuführen einer Mehrzahl von Behältern (100), die voneinander getrennt sind und eine Schale (101) und einen Deckel (103) umfassen, der mit der Schale (101) durch eine Scharnierachse (102) einstückig verbunden ist,
    - Einführen des zu verpackenden Produkts in die Schale (101),
    - teilweises Schließen des Deckels (103) auf der Schale (101) durch derartiges Drehen des Deckels (103) um die Scharnierachse (102), dass ein Spalt zwischen dem Deckel (103) und der Schale (101) zum Ausstoßen von Luft aus dem Behälter (100) und/oder zum Einführen von Gas in den Behälter (100) gelassen wird,
    - Absaugen von Luft aus dem und/oder Einführen von Gas in den Behälter (100); und
    - vollständiges Schließen des Deckels (103) auf der Schale (101) durch Weiterdrehen des Deckels (103) um die Scharnierachse (102) und Versiegeln des Deckels (103) auf der Schale (101), um den Behälter (100) hermetisch abzuschließen und eine Manipulation des Produkts zu vermeiden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Schritt des vollständigen Schließens des Deckels (103) auf der Schale (101) ein Verschließen durch Keilverbindung vorsieht.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schritt des Versiegelns des Deckels (103) auf der Schale (101) ein Versiegeln auf Kunststoffmaterialien (leicht zu öffnen) umfasst, um ein Versiegeln bei leichtem Öffnen des Behälters (100) zu ermöglichen.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schritt des Einführens von Gas in den Behälter (100) die Einführung von Gasen wie beispielsweise Sauerstoff O2, Kohlendioxid CO2 oder Stickstoff N2 vorsieht.
  5. Vorrichtung (1) zum Verpacken von Produkten, insbesondere Lebensmittelprodukten, in einem Vakuum und/oder in einer Schutzgasatmosphäre, umfassend die folgenden Schritte:
    - eine Förderstation (2) zum Befördern einer Mehrzahl von Behältern (100), die voneinander getrennt sind und eine Schale (101) und einen Deckel (103) umfassen, der mit der Schale (101) durch eine Scharnierachse (102) einstückig verbunden ist,
    - eine Füllstation (6) zum Einführen des zu verpackenden Produkts in die Schale (101),
    - eine Station (3) zum teilweisen Schließen des Deckels (103) auf der Schale (101) durch derartiges Drehen des Deckels (103) um die Scharnierachse (102), dass ein Spalt zwischen dem Deckel (103) und der Schale (101) zum Ausstoßen von Luft aus dem Behälter (100) und/oder zum Einführen von Gas in den Behälter (100) gelassen wird,
    - eine Station (4) zum Absaugen von Luft aus dem und/oder Einführen von Gas in den Behälter (100), zum vollständigen Schließen des Deckels (103) auf der Schale (101) durch Weiterdrehen des Deckels (103) um die Scharnierachse (102) und zum Versiegeln des Deckels (103) auf der Schale (101), um den Behälter (100) hermetisch abzuschließen und eine mögliche Manipulation zu vermeiden.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Station zum teilweisen Schließen des Deckels (103) auf der Schale (101) Führungsmittel (31, 34) und/oder Betätigungsmittel (32) umfasst, um den Deckel (103) der Schale (101) zu nähern.
  7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass sie Mittel (33) zum Halten des Deckels (103) in einer halbgeschlossenen Position auf der Schale (101) umfasst, die vor der Station (4) zum Erzeugen eines Vakuums und/oder einer Schutzgasatmosphäre und zum Versiegeln angeordnet sind.
  8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass sie ferner eine Rolle (70) von Kunststofffilm (71) und Versiegelungsmittel zum Aufbringen des Films (71) auf Schalen (101) ohne Deckel (103) umfasst.
EP04000962A 2003-01-23 2004-01-19 Verfahren und Vorrichtung zur Verpackung in Vakuum und/oder Schutzgasatmosphäre Expired - Lifetime EP1440887B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20030099 2003-01-23
IT000099A ITMI20030099A1 (it) 2003-01-23 2003-01-23 Procedimento, apparato e contenitore per il confezionamento sottovuoto e/o in atmosfera protettiva.

Publications (2)

Publication Number Publication Date
EP1440887A1 EP1440887A1 (de) 2004-07-28
EP1440887B1 true EP1440887B1 (de) 2010-12-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04000962A Expired - Lifetime EP1440887B1 (de) 2003-01-23 2004-01-19 Verfahren und Vorrichtung zur Verpackung in Vakuum und/oder Schutzgasatmosphäre

Country Status (5)

Country Link
EP (1) EP1440887B1 (de)
AT (1) ATE493339T1 (de)
DE (1) DE602004030735D1 (de)
ES (1) ES2358902T3 (de)
IT (1) ITMI20030099A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110155414A (zh) * 2019-04-25 2019-08-23 李飞灵 一种智能真空包装装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2310273B1 (de) * 2008-07-14 2013-02-20 Gima S.P.A. Maschine zur verpackung von produkten, insbesondere kapseln für maschinen zur abgabe von infusionsgetränken
IT1393743B1 (it) * 2008-10-24 2012-05-08 Compac S R L '' gruppo per il trattamento di prodotti alimentari in atmosfera controllata ''
DE102013204160A1 (de) * 2013-03-11 2014-09-11 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsanlage mit Einraststation und Verfahren
EP3061705B1 (de) 2015-02-24 2018-12-19 Attilio Vignoni Behälter zur verpackung von lebensmitteln

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267637A (en) * 1963-10-17 1966-08-23 Kliklok Corp Method of closing, squaring and sealing folding boxes comprising cover flaps
US3481100A (en) 1966-11-23 1969-12-02 Anderson Bros Mfg Co Method and apparatus for packaging in protective atmosphere
JPS60501805A (ja) * 1983-07-12 1985-10-24 ガーウツド・リミテツド 改良型包装
US5534282A (en) * 1989-08-30 1996-07-09 Seawell North America Inc. Packing perishable goods
US5247746A (en) * 1992-06-04 1993-09-28 W. R. Grace & Co.-Conn. Tray sealing and gas flush apparatus
FR2712253B1 (fr) * 1993-11-10 1996-01-19 Mecaplastic Procédé et dispositif de conditionnement de produits alimentaires, chimiques ou pharmaceutiques et barquettes de conditionnement correspondantes.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110155414A (zh) * 2019-04-25 2019-08-23 李飞灵 一种智能真空包装装置

Also Published As

Publication number Publication date
DE602004030735D1 (de) 2011-02-10
ATE493339T1 (de) 2011-01-15
ES2358902T3 (es) 2011-05-16
EP1440887A1 (de) 2004-07-28
ITMI20030099A1 (it) 2004-07-24

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