EP3450339B1 - Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient - Google Patents

Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient Download PDF

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Publication number
EP3450339B1
EP3450339B1 EP17188370.5A EP17188370A EP3450339B1 EP 3450339 B1 EP3450339 B1 EP 3450339B1 EP 17188370 A EP17188370 A EP 17188370A EP 3450339 B1 EP3450339 B1 EP 3450339B1
Authority
EP
European Patent Office
Prior art keywords
container
indentation
venting opening
rim
opening
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
EP17188370.5A
Other languages
German (de)
English (en)
Other versions
EP3450339A1 (fr
Inventor
Dirk Kretzschmar
Markus Günther
Peter BARZEN
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.)
Huhtamaki Oyj
Original Assignee
Huhtamaki Oyj
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 Huhtamaki Oyj filed Critical Huhtamaki Oyj
Priority to EP17188370.5A priority Critical patent/EP3450339B1/fr
Priority to ES17188370T priority patent/ES2813597T3/es
Publication of EP3450339A1 publication Critical patent/EP3450339A1/fr
Application granted granted Critical
Publication of EP3450339B1 publication Critical patent/EP3450339B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/34—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for fruit, e.g. apples, oranges or tomatoes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

Definitions

  • the present invention relates to a container which is deep-drawn from a film web, with a side wall and a bottom, which together define a filling volume, which receives a product to be packaged and which has a closable filling / removal opening and additionally at least one ventilation opening. Furthermore, the present invention relates to a method for producing a container and a tool.
  • the generic containers are from the prior art, for example EP 1 092 343 A2 or off WO 86/07 036 A1 , are known and are used, for example, for the sale of sensitive foods, in particular fruits or vegetables, the shape and / or surface of which is slightly damaged.
  • containers of this type are used for packaging cocktail tomatoes.
  • the ventilation openings are drilled or punched out, but this is complex and / or unsanitary.
  • Tools for making such containers are from the EP 0 718 077 A1 and the DE 203 17 973 U1 known.
  • the present invention relates to a container which is formed from a plastic film, in particular deep-drawn.
  • the film preferably has a temperature of> 20 ° C.
  • the film has a temperature in the region of the plasticizing temperature and / or glass transition temperature of the plastic from which the film is made, or a somewhat lower temperature.
  • the container has a side wall which is, for example, cylindrical or conical in shape and at one end of which the bottom of the container connects, in particular in one piece. At its other end, the side wall has a filling / removal opening through which the container is filled or can be emptied.
  • the side wall and the bottom define the filling volume of the container.
  • the container can be closed, in particular reversibly, with a cover film and / or a cover, which is attached to, for example, the side wall in the region of the filling / removal opening of the container.
  • the container has at least one, preferably a plurality of ventilation openings through which air can escape or flow in from the filling volume.
  • These ventilation openings are preferably provided in the area of the bottom of the container.
  • Preferably 2-8 openings are provided, which have a preferred diameter of 2-12 mm.
  • these openings now have a rim, in particular a revolving rim.
  • This rim which is also referred to as a bead, is produced during the manufacture of the container if the opening is not punched or drilled but is inserted into the film with a tool, for example a needle, as long as it is still heated, i.e. has a temperature which is above, in particular clearly above, the temperature at which the container is later used.
  • a tool for example a needle
  • the film When the ventilation opening is introduced, the film preferably has a temperature which corresponds to its temperature during molding to the container or which is preferably 1-30 ° C., particularly preferably 1.5-25 ° C. below the temperature during molding.
  • the still warm film is pierced by the tip of the tool and then the tool is moved a further distance, preferably 0.5-10 mm, in the direction of the filling volume of the container. This creates the rim / bead.
  • the rim / bead extends in the direction of the filling volume of the container and is preferably provided at an angle, in particular an acute angle, to the cross-sectional area of the recess.
  • the rim / bead preferably extends around the entire circumference of the ventilation opening.
  • the container according to the invention is very hygienic because it has no separated plastic parts, chips and / or drilling chips.
  • the container according to the invention is simple to produce because the ventilation openings can be shaped and introduced in one tool.
  • the ventilation opening is provided in an indentation, in particular in the bottom of the container.
  • This indentation can be, for example, a groove-shaped circular ring be provided, which is open in the direction of the filling volume.
  • This width of this opening is preferably dimensioned such that the air flow in the filling volume is sufficiently large.
  • the width is preferably also provided such that the product to be packaged cannot fall into the indentation or can only penetrate into the indentation to a limited extent.
  • a distance is provided between the top edge of the shelf and the top edge of the indentation. This distance is preferably so large that, with a certain width of the opening of the indentation, contact between the upper edge of the rim / bead and the product to be packaged is excluded, so that the product cannot be injured by the rim / bead.
  • the container has at least one foot with which it stands on a footprint, for example a sales area.
  • the foot is dimensioned such that a ventilation opening provided in the bottom of the container is spaced from a contact surface of the container, so that an air flow can take place through the ventilation openings.
  • the container preferably has at least 3 feet.
  • the container preferably has a plurality of feet which are spaced apart from one another, so that the air can be exchanged between the filling volume of the container and the surroundings between the feet.
  • the feet are preferably arranged equidistantly on the bottom of the container.
  • the container is formed into a flat film, which is still warm and / or heated, and has been heated up, for example by means of pressure and / or negative pressure and / or by means of a stamp, into a die.
  • at least one, preferably a plurality of ventilation openings is pierced with a tool into the shaped, still heated film web or the shaped but still warm container, with a puncture during piercing Bord / a bead arises.
  • This The rim / bulge partially resiliently forms, so it remains even after the tool has been removed from the container / film. The bead is still present when the container has cooled to its operating temperature.
  • the film is preferably shaped into the container by means of negative and / or positive pressure. This pressure is preferably maintained at least temporarily when the respective hole is pierced.
  • a time delay is preferably provided between the completion of the forming of the container and the start of the piercing. This time delay is preferably less than one second, preferably 1-9 tenths of a second.
  • the tool therefore has several uses.
  • a plurality of piercing tools are preferably driven simultaneously by a common drive. These are preferably not only the tools that are required for the production of the ventilation openings for a container, but particularly preferably also for all piercing tools with multiple uses. In the case of a multiplicity of uses, one drive drives the piercing tools of several uses but not the piercing tools of all the uses.
  • the drive is preferably a pneumatic drive that moves the respective piercing tool in two opposite directions.
  • the piercing of the opening in the film takes place independently of the shaping of the film into the container.
  • the pressure with which the film is formed in the die is controlled independently of the control of the drive of the tool with which the ventilation opening is pierced in the film or the shaped container. Both are preferably controlled by computer means.
  • the object is also achieved with a tool for producing a container with the features of claim 10.
  • the tool preferably has a plurality of uses, all needles of all uses being driven together by one, preferably a plurality of drives.
  • the needles are preferably driven by a movable plate.
  • This plate is connected on the one hand to the needles and on the other hand to a drive, in particular a plurality of pneumatic drives, which moves the plate in two opposite directions and thereby drives the needles through the film and pulls it out again.
  • the path of the needles in one direction is preferably 1-10 millimeters.
  • the needles are preferably made of a steel, in particular 1.4301 (X5CrNi18-10).
  • Figures 1, - 3 and 4th show the container 1 according to the invention, which in the present case is a packaging for cocktail tomatoes.
  • This container 1 has a side wall, in the present case a conical side wall 2, to which a bottom 3 is connected.
  • the side wall 2 and the bottom 3 define a filling volume 4, which can be filled with the packaging material 8, for example the cocktail tomatoes.
  • the container according to the invention is deep-drawn from a flat plastic film, which has a temperature in the vicinity of the so-called glass temperature.
  • a stamp, overpressure and / or underpressure can be used to form the container in order to pull / press the film into a die which has the negative shape of the desired shape.
  • the shaping is preferably carried out inline with the production process of the film, so that in the present case the film preferably still has a sufficient temperature for a deep-drawing process.
  • the film can also be heated prior to deep-drawing.
  • the container at the upper end of the side wall 2 has a filling or removal opening 18 through which the packaged goods can be filled or removed.
  • This opening is preferably provided so that it can be closed by a cover and / or a cover film.
  • the floor has the ventilation openings 7 provided according to the invention, which are used to ventilate the filling volume.
  • the ventilation openings 7 are provided, which in the present case are arranged in an annular and equidistant manner.
  • the openings are produced by inserting and piercing a tool, preferably a needle, into the still warm film, preferably during the shaping of the container and / or after the shaping has been completed and / or after a certain time window has elapsed after the shaping has ended.
  • the openings 7 are arranged in an indentation 6, which in the present case is designed as a bead or groove.
  • the indentation 6 is provided such that it extends away from the filling volume 4 of the container. Details on the arrangement of the openings in the indentation and / or on the shape of the rim / bulge will be discussed again later using the Figures 13 and 14 explained.
  • the indentation 6 is provided in the shape of a circular ring.
  • 1 feet 5 are preferably arranged on the bottom of the container, here six feet 5, between which a distance is provided.
  • the feet are dimensioned so that the container stands on them and there is a distance between the openings and the contact surface of the container, for example a shelf, so that it is always ensured that an air exchange takes place between the environment and the filling volume.
  • a distance is arranged between two feet, which is also required for the air flow.
  • the distance between two feet 5 and each ventilation opening 7 are preferably arranged in radial alignment with one another.
  • the opening 7 has a rim 9 or a bead 9, which is created by inserting the needle into the still warm film. This rim / bead is retained even after the tool has been removed from the film and after the container 1 has reached its operating temperature.
  • the bead 9 extends, preferably in a ring shape, around the entire circumference of the recess 7 and preferably has a pointed cross-sectional area of the opening Angle on.
  • Can also Figure 14 can be seen that the opening 9 is provided in an indentation 6, the height and / or width of which is preferably dimensioned such that a packaged product 8, which in the present case is shown spherically, does not come into contact with the upper edge of the / the shelf / Bead arrives or there is always a distance 10 between the upper edge of the bead and the lower edge of the packaged goods 8. This ensures that the rim / bulge does not damage the surface of the packaged goods, for example a cocktail tomato.
  • the Figures 2 and 5 - 12 Details of the method according to the invention and the tool according to the invention can be found.
  • the tool 15, here a die is designed such that it represents a negative of the container to be produced.
  • the mold 11 has recesses 12 and 13 for the bottom of the container, into which the film for forming the feet or the annular groove-shaped indentation is pressed or pulled.
  • the molding tool 15 has a plurality of tools 16, here needles, with which the openings 7 are pierced into the container, here the container bottom. These needles are preferably driven together so that they move upwards and then back again to pierce or pierce the film.
  • the tool 15 preferably has a plurality of uses, so that a plurality of containers can be produced simultaneously.
  • the tools / needles 16 of the respective grooves are preferably at least partially driven together.
  • the molding tool for the bottom of the container 11 has a plurality of recesses 14 for receiving the tools / needles.
  • the movement of the tools / needles 16 is preferably independent of the shaping of the container, so that the movement of the tools / needles can take place independently of the progress of the shaping.
  • the tools / needles 16 are preferably driven such that they only move upwards when the shaping of the container has already been completed. Particularly preferably, a, preferably definable, time delay is provided between the completion of the shaping and the start of the movement of the tools.
  • the tool 11 is preferably provided interchangeably in the tool 15, so that a container with different bottoms can be formed.
  • the needles are also interchangeably provided on the drives, so that the tool 15 can be easily serviced or replaced.
  • the tools / needles 16 are preferably connected to a plate which moves them up and down together. This plate can extend over one or more uses of the tool 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (12)

  1. Contenant (1), qui est embouti à partir d'une bande de film, comprenant une paroi latérale (2) et un fond (3), qui définissent ensemble un volume de remplissage, qui reçoit un produit à emballer et qui comprend une ouverture de remplissage/soutirage fermable (18) et en outre au moins une ouverture d'aération (7), l'ouverture d'aération (7) étant prévue dans une échancrure (6),
    caractérisé en ce que
    l'ouverture d'aération (7) comprend une bordure (9), qui s'étend dans la direction du volume de remplissage, un écart (10) étant prévu entre un bord supérieur de la bordure (9) et un bord supérieur de l'échancrure (6).
  2. Contenant selon la revendication 1, caractérisé en ce qu'il comprend au moins un pied (5), qui espace une ouverture d'aération (7) prévue dans le fond du contenant d'une surface d'appui du contenant.
  3. Contenant selon la revendication 2, caractérisé en ce qu'il comprend plusieurs pieds espacés les uns des autres.
  4. Procédé de fabrication d'un contenant selon l'une quelconque des revendications précédentes, dans lequel un contenant (1) est moulé dans un film plan chaud et, pendant et/ou après le moulage, au moins une ouverture d'aération (7) est percée, notamment simultanément, avec un outil (16) dans le film, une bordure (9) étant formée lors du perçage, qui s'étend dans la direction du volume de remplissage, l'ouverture d'aération (7) étant prévue dans une échancrure (6) et un écart (10) étant prévu entre un bord supérieur de la bordure (9) et un bord supérieur de l'échancrure (6).
  5. Procédé selon la revendication 4, caractérisé en ce que le moulage a lieu par sous- et/ou surpression.
  6. Procédé selon l'une quelconque des revendications 4 ou 5, caractérisé en ce qu'un retard temporel est prévu entre la fin du moulage du contenant et le perçage de l'ouverture (7).
  7. Procédé selon l'une quelconque des revendications 4 à 6, caractérisé en ce que plusieurs contenants (1) sont fabriqués simultanément dans un outil (15).
  8. Procédé selon la revendication 7, caractérisé en ce que tous les outils (15) sont entraînés simultanément par un entraînement.
  9. Procédé selon l'une quelconque des revendications 4 à 8, caractérisé en ce que le perçage des ouvertures (7) dans le film a lieu indépendamment du moulage du film en le contenant (1).
  10. Outil (15) pour la fabrication d'un contenant selon l'une quelconque des revendications 1 à 3 ou notamment pour la réalisation du procédé selon l'une quelconque des revendications 4 à 9, à partir d'un film plan, comprenant une matrice pour le façonnage de la paroi latérale (2) et du fond du contenant, celui-ci comprenant au moins une, notamment plusieurs aiguilles mobiles et entraînées (16), qui percent une ouverture d'aération (7) dans la bande de film,
    caractérisé en ce que
    l'ouverture d'aération (7) comprend une bordure (9), qui s'étend dans la direction du volume de remplissage du contenant (1), l'outil (15) pour le fond du contenant (1) comprenant des cavités (12, 13), dans lesquelles le film est compressé ou étiré pour le moulage d'une échancrure en forme de rainure annulaire circulaire (6), l'ouverture d'aération (7) étant prévue dans l'échancrure (6) et un écart (10) étant prévu entre le bord supérieur de la bordure (9) et le bord supérieur de l'échancrure (6).
  11. Outil (15) selon la revendication 10, caractérisé en ce qu'il présente plusieurs compartiments de moulage identiques et en ce que toutes les aiguilles (16) de tous les compartiments de moulage sont entraînées ensemble.
  12. Outil (15) selon la revendication 11, caractérisé en ce que les aiguilles (16) sont entraînées par une plaque mobile.
EP17188370.5A 2017-08-29 2017-08-29 Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient Active EP3450339B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17188370.5A EP3450339B1 (fr) 2017-08-29 2017-08-29 Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient
ES17188370T ES2813597T3 (es) 2017-08-29 2017-08-29 Recipiente para el alojamiento de productos sensibles, método y herramienta para la fabricación de un recipiente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17188370.5A EP3450339B1 (fr) 2017-08-29 2017-08-29 Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient

Publications (2)

Publication Number Publication Date
EP3450339A1 EP3450339A1 (fr) 2019-03-06
EP3450339B1 true EP3450339B1 (fr) 2020-05-27

Family

ID=59846316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17188370.5A Active EP3450339B1 (fr) 2017-08-29 2017-08-29 Récipient de réception des produits sensibles, procédé et outil pour la fabrication d'un récipient

Country Status (2)

Country Link
EP (1) EP3450339B1 (fr)
ES (1) ES2813597T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704225A1 (de) * 1977-02-02 1978-08-03 Westfaelische Metall Industrie Verfahren und vorrichtung zum herstellen eines mit perforationen versehenen blasformteiles
GB2094273B (en) * 1981-02-16 1985-01-03 Sharp Anthony John Two-part moulded container
WO1986007036A1 (fr) * 1985-05-30 1986-12-04 Garwood Limited Emballage
JP3595571B2 (ja) * 1993-05-07 2004-12-02 日精エー・エス・ビー機械株式会社 二重壁ボトルとその成形方法及び装置
HU217883B (hu) * 1994-12-23 2000-04-28 Depron B.V. Eljárás és berendezés nyitottcellás műanyag habfóliák sík zárt felületének perforálására
DE29918043U1 (de) * 1999-10-12 2000-02-10 Gebr. Pöppelmann, Kunststoffwerk-Werkzeugbau, 49393 Lohne Pflanztopf aus tiefgezogener Kunststoffolie
AT503327B1 (de) * 2003-10-24 2011-06-15 Rundpack Ag Vorrichtung zum thermoformen eines becherförmigen behälters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2813597T3 (es) 2021-03-24
EP3450339A1 (fr) 2019-03-06

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