EP0761543B1 - Verfahren zum Kontrollieren der Atmosphäre von mit einem Deckel versiegelten Behältern - Google Patents

Verfahren zum Kontrollieren der Atmosphäre von mit einem Deckel versiegelten Behältern Download PDF

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Publication number
EP0761543B1
EP0761543B1 EP19960401791 EP96401791A EP0761543B1 EP 0761543 B1 EP0761543 B1 EP 0761543B1 EP 19960401791 EP19960401791 EP 19960401791 EP 96401791 A EP96401791 A EP 96401791A EP 0761543 B1 EP0761543 B1 EP 0761543B1
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EP
European Patent Office
Prior art keywords
pots
capsule
opening
suction
suction cup
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
EP19960401791
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English (en)
French (fr)
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EP0761543A1 (de
Inventor
Patrick Becquart
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ARCIL
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ARCIL
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Publication date
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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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/08—Evacuating, 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being adapted to pierce the container or wrapper
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, 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
    • B65B31/043—Evacuating, 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 acting horizontally between an upper and a lower part of the container or wrapper, e.g. between container and lid

Definitions

  • the subject of the present invention is a method and a device for controlling the atmosphere of pots which are continuously produced and which are sealed with a operculum.
  • the filling and sealing machines of pots conventionally use a strip thermoformed which moves by step from post to post so that the jars are filled and then sealed individually by perimeter welding of a cover, usually from aluminum foil or aluminum coated with polyethylene, or one-complex temperature of the order of 180 ° C.
  • the quality of preservation of the products is conditioned by the quality of the atmosphere of the pot between the seal and the product that fills the jar.
  • a known technique for this purpose implements the injection of gas in a tunnel in slightly overpressure through the pots before application and welding of the cover.
  • injection tunnels gas hardly allows permanent control ultra cleanliness and also involves consumption high gas.
  • US-A-4,777,782 relates to a process in which the internal atmosphere enters the product into the jar and the lid is controlled through an opening made in the peripheral edge located between two pots adjacent. This requires making perforations in the pots.
  • US-A-2,888,788 relates to a process allowing to evacuate the air contained in a flexible bag containing a food product. This process does not allow not to control the internal atmosphere between a product contained in pots and a seal.
  • the present invention provides a method not having the aforementioned drawbacks.
  • the opening (s) in the cover may be performed before, simultaneously or after said perimeter sealing.
  • the opening (s) are advantageously located above the peripheral edges and preferably in an edge crossing region peripherals of four adjacent pots.
  • the process can then include after step d), a removal step of said crossing region.
  • the process is characterized in that it possibly includes after step a), and, before step b), a step consisting in plating at least one suction cup on the seal and a step of spreading this one from the upper side of the pots.
  • the suction cup is pressed against the cover a once the perimeter sealing has been completed.
  • the openings can be made after plating the suction cup, especially if it has a punch.
  • the suction cup advantageously comprises a first region for example a central region having at least one opening allowing control of the atmosphere and a second suction region, by example an annular suction region surrounding the central region for achieving said spacing of the operculum, or the reverse, that is to say that the region ring finger is the first region and the central region is the second region.
  • a punch and / or concentric welding head allow first a drilling and then a sealing of the or openings.
  • the process implements a single suction cup, and the seal presents only one opening for each set of pots.
  • the control of the atmosphere is achieved by suction through the opening of the seal put in communication with the party in suction cup depression.
  • the process is characterized in that the cover has at least two openings for each set of pots, in that it puts using at least two suction cups, or devices equivalent, and in that during step b), the atmosphere control is achieved by gas injection through the opening of the central region of one of the suction cups and one of the openings in the cover, and by suction to through the other opening of the cover and the opening of the central region of the other suction cup.
  • a cutting step can be performed after step d), to allow the pots to be separated either under form of said sets, either in the form of subsets, either in the form of individual pots.
  • Figure 1 illustrates the process according to the invention in the case of an evacuation of pots 2.
  • a thermoformed strip 1 comprising filled jars 2 is moved in step-by-step mode between different stations with a displacement pitch P in the direction of arrow F.
  • a welding is carried out perimeter 3 sealed by conventional electro-welding.
  • This perimeter weld 3 interests a group or pack of pots, here 8 in number, for step P.
  • This perimeter welding 3 can be totally confused or partially with weld beads that will remain on the jars sold.
  • a hollow punch 4 makes, for each set of pots, a hole or a slot 17 in the cover 14 possibly above a cavity 27 produced when the strip is formed plastic 1.
  • the holes or slots 17 can have been made in cover 14 on a post previous or have been precut in cover 14.
  • the holes or slots 17 serve as points of switching to air or gas exchanges between the part sealed and an outside source.
  • the holes or slots 17 are made in the peripheral edges 28 and preferably in the areas of the band plan referenced 9 located at the intersection of peripheral edges 28 of four adjacent pots.
  • the zones 9 will be evacuated during cutting at station III.
  • a suction cup designated by the general reference 5 has an annular chamber 31 (see FIGS. 3 a and 3 b ), delimited by external 25 and internal 26 walls, which ensures the suction of the seal 14 which is pressed onto the suction cup 5
  • the lower face of the walls 25 and 26 defines a plane and carries seals 40.
  • a head 12 which carries the suction cup 5 rises a few millimeters and the cover 14 is then no longer pressed against the upper face of the strip 1.
  • the suction cup 5 has a central chamber 32 provided with an opening 20.
  • the chamber 32 may have a diameter greater than that of the opening 20.
  • the vacuum is gradually made through the opening 20, from where the chamber is placed under vacuum central 32 and the head of the pots 2 located in the zone defined by the welded perimeter 3, the edge 29 of the pots 2 and the product 30 contained in the pots 2, by suction air 7 up to a pressure calibrated by a vacuum generator. Note that the state created by the vacuum or the depression in room 32 should be much lower than the vacuum-induced contribution present in chamber 31, otherwise the cover 14 would no longer be kept pressed against the suction cup 5.
  • depression can take place in chamber 31 while the aspiration of the cover is produced thanks to chamber 32.
  • the suction cup 5 carries a punch 4 (see Figure 4) for making the hole or the slot 17, the punch 4 being coaxial with the opening 20, the vacuum or depression occurs in the central chamber 32 by the central duct 34 of the punch 4, when the latter is in the raised position.
  • annular welding head 6 or circular, coaxial with the opening 20 of the suction cup 5, goes down in turn and seals around the hole of the slot 17 by welding on the zones 9 of the strip 1.
  • This welding head 6 is annular if the holes or the slots 17 are made on station I, or else circular or annular if the holes or slots 17 have been made on a previous station or precut in cover 14.
  • control head (s) 12 of atmospheres return to the high position until the cycle next.
  • Station II is a classic welding station equipped with a welding electrode which ensures the welding individual perimeter 8 of each of the pots 2 according to a outline 15.
  • the individual weld 8 can be made by the welding tool of station I in a second step of the welding tool at station I.
  • Item III mainly consists of a cutting tool for cutting into sub-assemblies commercial packs, here of four pots, corresponding to half a set of eight pots or per pot individual.
  • Zone 9 which was used for welding by the welding head 4 circular or annular of station I is evacuated during cutting by cutting an area into star shape 9. In the case of a pot cut zone 9 is integrated into the waste of plastic called the grid.
  • Figure 2 illustrates the process according to the invention in the case of injection of mixed gas or to replace the air in the pots 2.
  • the process is essentially the same as that defined in Figure 1.
  • Two holes 18 and 19 are provided in the cover 14 for each set of pots 2.
  • the objective is to create a gas sweep 11 in the welded area 3.
  • it implements a device with two heads 10 and 12, instead of one previously, or with double head, driven in motion by a single motorization.
  • Each head (10, 12) has a hole or a slot (18, 19). Note that we could also install a higher number of heads.
  • the head 10 which carries a suction cup 5 realizes the three functions described in Figure 1 but its central part (chamber 32 of Figures 3a and 3b), at place of creating the vacuum under the cover 14, ensures injection of the gas mixture, the circulation of which is indicated by the arrows 11.
  • Head 12 provides exactly the same functions that the head 12 of FIG. 1: the suction cup 5 that she carries realizes the aspiration of the cover 14 and extracting the air initially contained in them jars 2. Control of injection times and flow rates and suction allows you to adjust the composition of the atmosphere in the head of the pots 2.
  • the suction cup 5 shown in Figure 4 present, coaxially with the opening 20, a punch 4 provided with a central duct 34 surrounded by a head annular or circular welding 6 guided by the opening 20.
  • This suction cup 5 ensures all the functions provided for in item I in the event that the opening holes (17, 18, 19) are made on this station. In the cases where the openings 17, 18, 19 are made before the station I, the suction cup 5 in FIG. 4 only has the welding head 6.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)

Claims (13)

  1. Verfahren zur Kontrolle der Atmosphäre von Töpfen, die miteinander durch ihre peripheren Ränder fest verbunden sind und nach ihrer Füllung durch einen Deckel versiegelt werden, der einer Einheit von Töpfen gemeinsam ist und eine individuelle Umschließung bzw. Versiegelung eines jeden der Töpfe bildet,
    dadurch gekennzeichnet, dass
    es folgende Schritte umfasst:
    a) Für jede Einheit von Töpfen Ausführen einer perimetrischen Versiegelung des Deckels (14) an einer äußeren Begrenzung (3), welche der Einheit (2) von Töpfen entspricht, sowie mindestens einer Öffnung (17, 18, 19) in dem Deckel (14) innerhalb dieses Umfangs;
    b) durch die Öffnung oder die Öffnungen (17, 18, 19) hindurch kontrollieren der Atmosphäre des Innenraums, der zwischen dem Deckel (14) und dem Produkt (30) gelegen ist, das in den Töpfen (2) enthalten ist;
    c) Versiegeln der Öffnung oder der Öffnungen (17, 18, 19);
    d) Versiegeln des Deckels (14) an den Umfangsrändern (28) eines jeden Topfes (2), um die individuellen Versiegelungen zu bilden.
  2. Verfahren nach Anspruch 1
    dadurch gekennzeichnet, dass
    die Öffnung oder die Öffnungen (17, 18, 19) oberhalb der Umfangsränder (9, 28) gelegen ist bzw. sind.
  3. Verfahren nach Anspruch 2,
    dadurch gekennzeichnet, dass
    die Öffnung oder die Öffnungen in einem Kreuzungsbereich (9) der Umfangsränder (28) von vier benachbarten Töpfen (2) gelegen ist bzw. sind.
  4. Verfahren nach Anspruch 3,
    dadurch gekennzeichnet, dass
    es nach dem Schritt d) einen Schritt der Beseitigung des Kreuzungsbereichs (9) aufweist.
  5. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    es vor dem Schritt b) einen Schritt aufweist, der darin besteht, mindestens einen Saugnapf (5) an dem Deckel (14) anzubringen und einen Schritt, der darin besteht, diesen (14) von der Oberseite der Töpfe (2) zu entfernen.
  6. Verfahren nach Anspruch 5,
    dadurch gekennzeichnet, dass
    der Schritt a) aufeinanderfolgend die folgenden Zwischenschritte aufweist:
    a1) Realisieren der perimetrischen Versiegelung,
    a2) Realisieren der Öffnung oder der Öffnungen des Deckels; und dass
    der Schritt, der darin besteht, mindestens einen Saugnapf an den Deckel anzubringen, zwischen den Zwischenschritten a1 und a2 ausgeführt wird.
  7. Verfahren nach Anspruch 6,
    dadurch gekennzeichnet, dass
    der Saugnapf (5) einen Dorn und/oder einen Schweisskopf (6) trägt, der ein Versiegeln der Öffnung oder der Öffnungen (17, 18, 19) ermöglicht.
  8. Verfahren nach einem der Ansprüche 5 bis 7,
    dadurch gekennzeichnet, dass
    der Saugnapf (5) einen ersten Bereich (32) aufweist, der mindestens eine Öffnung (20) hat, welche die Kontrolle der Atmosphäre ermöglicht, und einen zweiten Bereich (31) zum Ansaugen aufweist, um die Entfernung des Deckels (14) auszuführen.
  9. Verfahren nach Anspruch 8,
    dadurch gekennzeichnet, dass
    einer der Bereiche (31, 32) ein zentraler Bereich (32) ist und dass der andere Bereich (32, 31) ein ringförmiger Bereich (31) ist, der den zentralen Bereich umgibt.
  10. Verfahren nach Anspruch 8 oder 9,
    dadurch gekennzeichnet, dass
    es einen einzigen Saugnapf (5) verwendet und dass der Deckel (14) eine einzige Öffnung (17) für jede Einheit von Töpfen (2) aufweist und dass während des Schritts b) die Kontrolle der Atmosphäre durch Ansaugen durch die Öffnung (17) des Deckels (5) hindurch ausgeführt wird, welcher mit dem in Unterdruck befindlichen Abschnitt des Saugnapfes (5) in Verbindung steht.
  11. Verfahren nach Anspruch 8 oder 9,
    dadurch gekennzeichnet, dass
    der Deckel (14) zwei Öffnungen (18, 19) für jede Einheit von Töpfen aufweist und dass es zwei Saugnäpfe (5) verwendet und dass während des Schritts b) die Kontrolle der Atmosphäre durch Einblasen von Gas durch die Öffnung (20) des zentralen Bereichs (32) eines der Saugnäpfe (5) und durch eine der Öffnungen (18) des Deckels (14) hindurch und durch Ansaugen durch die andere Öffnung (19) des Deckels (14) und durch die Öffnung (20) des zentralen Bereichs (32) des anderen Saugnapfes (5) hindurch ausgeführt wird.
  12. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    während des Schritts a) die Öffnung (17, 18, 19) vor dem perimetrischen Versiegeln des Deckels (14) ausgeführt wird.
  13. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    es nach dem Schritt d) einen Schnittvorgang aufweist, der ermöglicht, die Töpfe (2) entweder in Form von Einheiten oder in Form von Untereinheiten oder in Form von einzelnen Töpfen zu trennen.
EP19960401791 1995-08-30 1996-08-14 Verfahren zum Kontrollieren der Atmosphäre von mit einem Deckel versiegelten Behältern Expired - Lifetime EP0761543B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9510203 1995-08-30
FR9510203A FR2738216B1 (fr) 1995-08-30 1995-08-30 Procede et dispositif de controle d'atmosphere de pots scelles par un opercule

Publications (2)

Publication Number Publication Date
EP0761543A1 EP0761543A1 (de) 1997-03-12
EP0761543B1 true EP0761543B1 (de) 2000-11-29

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EP19960401791 Expired - Lifetime EP0761543B1 (de) 1995-08-30 1996-08-14 Verfahren zum Kontrollieren der Atmosphäre von mit einem Deckel versiegelten Behältern

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EP (1) EP0761543B1 (de)
DE (1) DE69611069T2 (de)
ES (1) ES2153545T3 (de)
FR (1) FR2738216B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3003143B1 (fr) 2013-03-12 2016-05-13 Oreal Contenant economique pour un produit cosmetique sous forme liquide
CN107839927A (zh) * 2017-09-28 2018-03-27 贵州大宏成食品有限公司 一种用于真空包装机的卡板结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888788A (en) * 1957-03-14 1959-06-02 Gebhardt Otto Apparatus for and method of evacuating sealed packages
US3347011A (en) * 1964-02-04 1967-10-17 Royal Package Equipment Inc Packaging machine and method of forming packages
US4777782A (en) * 1987-06-05 1988-10-18 Mahaffy & Harder Engineering Co. Apparatus and methods for making differentially-conditioned package pairs

Also Published As

Publication number Publication date
DE69611069T2 (de) 2001-07-19
FR2738216B1 (fr) 1997-11-14
ES2153545T3 (es) 2001-03-01
EP0761543A1 (de) 1997-03-12
DE69611069D1 (de) 2001-01-04
FR2738216A1 (fr) 1997-03-07

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