WO1999042366A2 - Procede et installation pour la fabrication d'emballages destines notamment a la presentation et la conservation de produits alimentaires - Google Patents
Procede et installation pour la fabrication d'emballages destines notamment a la presentation et la conservation de produits alimentaires Download PDFInfo
- Publication number
- WO1999042366A2 WO1999042366A2 PCT/FR1999/000400 FR9900400W WO9942366A2 WO 1999042366 A2 WO1999042366 A2 WO 1999042366A2 FR 9900400 W FR9900400 W FR 9900400W WO 9942366 A2 WO9942366 A2 WO 9942366A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- plate
- shell
- flange
- shells
- Prior art date
Links
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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
-
- 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
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
- B65B25/04—Packaging fruit or vegetables
Definitions
- the present invention relates to a method and an installation for the manufacture of packaging intended in particular for the presentation and preservation of food products, in particular, and in a non-exclusive manner, for the preservation of fruits or vegetables the degree of which ripening evolves rapidly over time, said packaging also making it possible to preserve these products from impact or direct pressure, detrimental to their conservation.
- Such packages generally consist of an external shell formed of two rigid or semi-rigid trays or half-shells, joined together by their peripheral edges or flanges according to a common junction plane, this shell internally comprising a confinement space formed between two flexible deformable films conforming to the shape of the products to be packaged.
- the two constituent parts of the shell are produced by forming or molding two cavities, or half-shells, in a plastic material, half-shells which are joined to one another by welding, by sealing, by fusion or ultrasound, or even by gluing or stapling, while the confinement space is formed between two flexible films, made of transparent or translucent plastic, such as stretched polyethylene films, tinted or not.
- the known packaging consists of two plastic half-shells in the form of trays each having a bottom, a side wall and a peripheral flange at the free edge of their side wall, said half-shells each defining a cavity and being joined to one another by their flange, said packaging containing a confinement space whose configuration is substantially complementary to that of or products to be packaged.
- the present invention relates to a method and an installation intended for the continuous or sequential production of such packages.
- the method according to the invention is characterized in that it consists:
- the stretch film prior to its installation on said half-shell, is stretched in the direction of its width (that is to say the width of the strip of polymer film) and transverse to this direction, before the deformation operation.
- the partial vacuum of the half-shells is broken after that they have been matched, flange against flange, in order to allow the deformed film to contract on the product which has been housed in the confinement space before the assembly of the half-shells forming the packaging.
- the method according to the invention uses the creation of a partial vacuum to maintain, in the desired configuration, the deformed film as long as the two half-shells are not assembled along their flange and that this partial vacuum is then broken, a technique quite different from that used, for example, in WO 89 03789 where an inert gas is injected into a hermetically closed package. food contained in said packaging.
- the installation for manufacturing the confinement half-shells is characterized in that it consists of a shaping unit formed by a support plate for shaping tools mounted to move with respect to a platform for controlling shaping tools, itself subjected in one direction to the action of a jack and in the other direction to the action of return members, said platform sliding on columns guide and being capable of being brought into at least two extreme positions, one waiting in which the pilot cylinder is retracted and the return members relaxed, the other operational, corresponding to the film deformation phase stretchable, and in which the plate is in the low position, the jack being deployed and the return members compressed.
- FIG. 1 is a perspective view illustrating the type of packaging which can be obtained using the method and the installation according to the invention
- - Figures 2 to 5 show four stages of the installation operating cycle, namely:
- the shaping unit is in the high position, that is to say in the retracted waiting position
- the shaping unit is in the operational position and the film is shaped,. in FIG. 4, the film is cut, and. in FIG. 5, the shaping unit is retracted after shaping and cutting the film.
- the method and the installation according to the invention are intended for the continuous or sequential manufacture of packaging formed, on the one hand, by an external shell intended to protect packaged products from impacts and pressures , and, on the other hand, a containment space, of the cell type (s), in which the products to be packaged are housed manually.
- packaging may in particular, but this is only an example, affect the shape of that illustrated in Figure 1.
- the packaging consists of two half-shells, 1 and 2, in the form of trays rigid or semi-rigid, each comprising a bottom and a side wall ending in a peripheral flange projecting towards the outside of the hull. These two half-shells 1 and 2 are superimposed and joined together by their peripheral flange according to a common junction plane 3.
- the two half-shells 1 and 2 are produced by forming or molding two impressions in a plastic material.
- the confinement space 4 is, meanwhile, defined by two synthetic films 5 and 6 shaped according to a cellular configuration, each cell having a shape corresponding substantially to that of a product to be packaged, so that the superposition of the two half - shells 1 and 2 create one or more housings whose shape is complementary to that of the product or products to be packaged.
- the confinement space or volume is produced by placing a stretchable film 27 in the previously stretched state on the cavity and the peripheral flange of each half-shell 8, and that is mechanically deformed by shaping this film 27 according to a particular profile in order to give it a honeycomb configuration whose shape matches the periphery of the product to be packaged.
- the hollow thus created during the deformation operation stabilizes and this configuration is maintained by balancing the pressures, that is to say by the internal pressure of the zone between the film 27 and the half-shell 8 and the surrounding external pressure.
- the film 27 is then cut along the periphery of the flange and the half-shells 8 can then be matched after the products to be packaged are manually housed in the cells of the confinement space.
- the two half-shells 8 applied one on the other, flange 81 against flange 81, can be welded, for example by ultrasound.
- the installation for implementing the process for manufacturing the containment half-shells according to the invention consists of at least one shaping unit, essentially comprising a conveyor 7 for supplying half-shells 8, and a crew 9, movable in vertical translation or in rotation (barrel) and ensuring the deformation of the film.
- the conveyor can be a table 7, formed of a horizontal plate coupled to the head of a jack 10 by a pin 11 whose head comes lodge in a groove 12 provided in the half-shell 8 which rests on this table.
- the movable assembly 9 is formed by a plate 13 associated with a plate 14 on which are fixed, in the example considered, two shaping tools 15, this plate 13 being mounted vertically movable on guide columns 16 and subjected to the action of return springs 17. More precisely, the plate 13 is subjected to the action of a jack 28.
- the plate 13 comprises at least four holes, two for the passage of the guide columns 16 and two for the free sliding of two pins 18 connecting the plate 14 support of shaping tools to the plate 13.
- the pins 18 are screwed at their ends 181 in the plate 14 support for shaping tools and their opposite end 182 consists of a head forming a stop defining a peripheral shoulder which rests on a ring or bearing 19, spiral springs 20 being sandwiched between the plate 14 support for shaping tools and the plate 13 to serve as return means.
- the guide columns 16 are screwed by one of their ends 160 into a film presser frame 21, while their other end 161, like the pins 18, has a head forming a stop bearing on rings or bearings 22 used for guiding the plate 13, during its reciprocating movements.
- the shaping tools 15 are here hemispherical in shape and comprise on their flat face a lug 23 coming to be housed in an opening 24 of the plate 14, said shaping tools 15 being held in place by studs 25 screwed into blind holes 26 formed in the shaping tools 15.
- the operating cycle of this manufacturing unit is as follows.
- a film 27 (fig.2) previously stretched in the two orthogonal directions.
- This film is obtained from a transparent or translucent plastic material of the polyethylene type and it is perfectly deformable by stretching.
- the actuator 28 is then actuated, which causes the plate 13 to slide on its columns 16 with compression of the return springs 17 (fig.3)
- the relative position of the plate 14 support for shaping tools does not is not modified with respect to the plate 13.
- the deformation of the film 27 by the shaping tools progressively expels the air between the film 27 and the bottom of the half-shell 8, with the result of creating a depression which keeps the film in its deformed configuration and prevents it from gradually returning to its flat configuration once the shaping tools are raised.
- the machine cycle is calculated so that the edge of the film 27 comes to rest on the flange 81 (fig. 2) of the half-shell 8 with a slight delay on the deformation of the film 27 so that the air has time to 'be driven out at the level of this flange before the sealing takes place by adhesion of the film 27 on said flange 81.
- the horizontal table 7 moves vertically relative to the movable assembly 9, by deployment of its jack 10 urging upwards, not only the half-shell 8, but also the plate 14 supporting shaping tools.
- the plate 14 At the end of stroke of the jack 10, the plate 14 is in the high position, its return springs 20 being compressed, and the film 27 comes into contact with the heating knife 29 carried by the frame 30 and cutting the film 27 outside. from the adhesion zone of said film 27 to the flange of the half-shell 8.
- the movable assembly 9 is returned to the retracted waiting position by respective relaxation of the return springs 17 and 20 of the plate 13 and of the plate 14 supporting shaping tools.
- the film 27 is conveyed and stretched by conventional belt systems and that it is possible, depending on the shape of the product to be packaged, to replace the shaping tools 15, here hemispherical, with other shapes of '' conformation tools, especially if you want to package other products or objects.
- This operation is carried out by perforating each of the two half-shells using a hot rod or by drilling with ultrasound.
- the invention is not limited to the embodiment described above and it is obvious that the nature of the materials constituting the shells or that of the film, or even the shape of the shaping tools, could vary without anything change to the essential object of the invention.
- a flange length could be common to two half-shells with center fold line, so that such half-shells could be simultaneously provided with their confinement film.
- this expression is not to be taken in the strict sense. In fact, the junction plane of the hull adjoining parts is not necessarily median so that said parts are not necessarily symmetrical.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Buffer Packaging (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Packaging Frangible Articles (AREA)
- Vacuum Packaging (AREA)
- General Preparation And Processing Of Foods (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99904933A EP1056645B1 (fr) | 1998-02-23 | 1999-02-23 | Procede et installation pour la fabrication d'emballages destines notamment a la presentation et la conservation de produits alimentaires |
DE69901791T DE69901791D1 (de) | 1998-02-23 | 1999-02-23 | Verfahren und einrichtung zur herstellung von verpackungen, welche insbesondere zur präsentation und konservierung von nahrungsmitteln geeignet sind |
AT99904933T ATE219005T1 (de) | 1998-02-23 | 1999-02-23 | Verfahren und einrichtung zur herstellung von verpackungen, welche insbesondere zur präsentation und konservierung von nahrungsmitteln geeignet sind |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802133A FR2775253B1 (fr) | 1998-02-23 | 1998-02-23 | Procede et installation pour la fabrication d'emballages destines notamment a la presentation et la conservation de produits alimentaires |
FR98/02133 | 1998-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999042366A2 true WO1999042366A2 (fr) | 1999-08-26 |
WO1999042366A3 WO1999042366A3 (fr) | 2001-01-04 |
Family
ID=9523238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/000400 WO1999042366A2 (fr) | 1998-02-23 | 1999-02-23 | Procede et installation pour la fabrication d'emballages destines notamment a la presentation et la conservation de produits alimentaires |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1056645B1 (fr) |
AT (1) | ATE219005T1 (fr) |
DE (1) | DE69901791D1 (fr) |
FR (1) | FR2775253B1 (fr) |
WO (1) | WO1999042366A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2441683A1 (fr) * | 2010-10-12 | 2012-04-18 | MULTIVAC Sepp Haggenmüller GmbH & Co KG | Station de verrouillage et procédé de coupe d'une pellicule de couvercle |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2836900B1 (fr) | 2002-03-11 | 2005-01-07 | Velfor Plast Sa | Procede de conditionnement en suspension de produits divers et les emballages obtenus |
DE10241908A1 (de) * | 2002-09-06 | 2004-03-11 | Hagmann Maschinenbau Ag | Heisssiegelmaschine zum Verpacken von Produkten, insbesondere von Lebensmitteln |
FR2913003B1 (fr) | 2007-02-26 | 2011-04-01 | Simagec | Dispositif et procede d'emballage et de conditionnement en compression d'objets, notamment fragiles |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE812416C (de) * | 1946-08-27 | 1951-08-30 | Wingfoot Corp | Verpackungsverfahren, insbesondere fuer empfindliche und zerbrechliche Gegenstaende |
US2918767A (en) * | 1954-03-02 | 1959-12-29 | Swift & Co | Packaging apparatus |
DE2259547A1 (de) * | 1972-12-05 | 1974-06-12 | Lissmann Alkor Werk | Verfahren zur herstellung einer packung |
WO1989003789A1 (fr) * | 1987-10-29 | 1989-05-05 | Garwood Limited | Emballage ameliore |
WO1991003400A1 (fr) * | 1989-08-30 | 1991-03-21 | Seawell Corporation N.V. | Emballage pour marchandises perissables |
-
1998
- 1998-02-23 FR FR9802133A patent/FR2775253B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-23 AT AT99904933T patent/ATE219005T1/de not_active IP Right Cessation
- 1999-02-23 WO PCT/FR1999/000400 patent/WO1999042366A2/fr active IP Right Grant
- 1999-02-23 EP EP99904933A patent/EP1056645B1/fr not_active Expired - Lifetime
- 1999-02-23 DE DE69901791T patent/DE69901791D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE812416C (de) * | 1946-08-27 | 1951-08-30 | Wingfoot Corp | Verpackungsverfahren, insbesondere fuer empfindliche und zerbrechliche Gegenstaende |
US2918767A (en) * | 1954-03-02 | 1959-12-29 | Swift & Co | Packaging apparatus |
DE2259547A1 (de) * | 1972-12-05 | 1974-06-12 | Lissmann Alkor Werk | Verfahren zur herstellung einer packung |
WO1989003789A1 (fr) * | 1987-10-29 | 1989-05-05 | Garwood Limited | Emballage ameliore |
WO1991003400A1 (fr) * | 1989-08-30 | 1991-03-21 | Seawell Corporation N.V. | Emballage pour marchandises perissables |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2441683A1 (fr) * | 2010-10-12 | 2012-04-18 | MULTIVAC Sepp Haggenmüller GmbH & Co KG | Station de verrouillage et procédé de coupe d'une pellicule de couvercle |
Also Published As
Publication number | Publication date |
---|---|
FR2775253B1 (fr) | 2000-05-26 |
FR2775253A1 (fr) | 1999-08-27 |
WO1999042366A3 (fr) | 2001-01-04 |
EP1056645A2 (fr) | 2000-12-06 |
ATE219005T1 (de) | 2002-06-15 |
EP1056645B1 (fr) | 2002-06-12 |
DE69901791D1 (de) | 2002-07-18 |
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