EP0056345A1 - Verpackungsverfahren und -vorrichtung für Produkte der industriellen Bäckerei mit einer mittelmässigen Feuchtigkeit - Google Patents

Verpackungsverfahren und -vorrichtung für Produkte der industriellen Bäckerei mit einer mittelmässigen Feuchtigkeit Download PDF

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Publication number
EP0056345A1
EP0056345A1 EP82400019A EP82400019A EP0056345A1 EP 0056345 A1 EP0056345 A1 EP 0056345A1 EP 82400019 A EP82400019 A EP 82400019A EP 82400019 A EP82400019 A EP 82400019A EP 0056345 A1 EP0056345 A1 EP 0056345A1
Authority
EP
European Patent Office
Prior art keywords
bag
article
packaging
articles
film
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.)
Withdrawn
Application number
EP82400019A
Other languages
English (en)
French (fr)
Inventor
André Lucas
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.)
Gringoire-Brossard Dite Ste
Original Assignee
Gringoire-Brossard Dite Ste
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 Gringoire-Brossard Dite Ste filed Critical Gringoire-Brossard Dite Ste
Publication of EP0056345A1 publication Critical patent/EP0056345A1/de
Withdrawn legal-status Critical Current

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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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/16—Packaging bread or like bakery products, e.g. unsliced loaves
    • 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
    • B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation

Definitions

  • the invention relates to a method and a device for packaging industrial bakery or pastry articles with intermediate humidity, more particularly for pre-packaging these articles in a heat-sealable film bag.
  • the present invention specifically aims to provide a method of packaging these industrial bakery / pastry items with intermediate humidity by sealing them in a sachet or pre-packaging case in a film of a heat-sealable plastic material allowing these articles to be then adequately sterilized and allowing, in addition, after the sterilization step, to verify very simply by rapid inspection the quality of the sealing of the film around the article.
  • the packaging method comprising the step of sealing under a plastic film bag the cooked or pre-cooked article, comprises the step of expelling most of the air contained in the film bag partially sealed around the article, for draping the film around the article, before sealing the bag.
  • the packaging device for the implementation of this method, comprising a conveyor for transferring the articles; a packaging film feeder, shaping means giving the film a form of a longitudinally welded tubular sachet, and a sealing / cutting knife for the case along a line perpendicular to the longitudinal direction of the sachet comprises means for temporarily applying a controlled pressure on at least the upper face of the article placed in the pre-sealed tubular bag in sequence with the actuation of the sealing-cutting knife.
  • the application of controlled pressure is carried out by a pad of elastic material or by a blowing tunnel directing jets of fluid under pressure at high speed. on the faces of the article.
  • FIG. 1 a portion of a production and packaging line for industrial bakery / pastry items where, at the outlet of one. baking or pre-baking oven 1, the articles 2 are conveyed on a conveyor 3 to a prepacking and sealing station 4 of the articles in a film bag made of heat-sealable plastic material, after which the article thus pre -packaged and sealed 2 'is routed to a sterilization tunnel 5, for example of the infrared type.
  • the article to be packaged is a bakery article in the form of a flat cake, for example a pre-cooked pizza base (humidity of the order of 25%)
  • the article to be packaged is a pastry article consisting of a cake 20, for example that marketed by the applicant under the name "savannah" (humidity of the order of 15% to 19%), placed in a metal tray or mold 21.
  • the cooked or pre-cooked articles are conveyed continuously by the conveyor 3 to be introduced into a sheath forming a tubular bag 6, made of a plastic film 7 unwound from 'a supply reel 8.
  • the flat film 7 is gradually shaped to take a tubular configuration, the side edges 9 and 9' of the film being gradually brought closer to each other downwards, to be secured by a longitudinal continuous weld 10, the film bag being sealed, in two stages, on either side of the article received in the bag by a sealing-cutting knife 11, 11 ' separating the previously completely sealed upstream bag from the following pre-sealed bag by a cutting line 12 transverse to the longitudinal direction of the tubular bag by forming on either side of this cutting line 12 a first end weld 13, frontal for the subsequent case, and a second weld 13 ', terminal for the completely sealed front case.
  • the article to be packaged 2 is therefore introduced continuously by its side still open in a bag, partially sealed using
  • a controlled pressure represented by the arrow 14 is applied to at least the upper face of the pre-sealed bag containing the article in order to expel most of the air therefrom and achieve a relatively narrow draping of the film on the article before final tight sealing.
  • the expulsion of most of the air contained in the bag of pre-sealed film is carried out, for flat articles 2, by means of at least one pad of elastic material 15, for example of cellular foam, carried by a rigid reinforcement 16 which can be actuated selectively, for example by jack, as shown by the arrow 17 in FIG. 3, in order to firmly apply and overwrite the pad 15 on the partially prepackaged article, the sealing-cutting knife 11 then being lowered to form the weld lines 13 ′ and 13 and the cutout 12 (FIG. 4), the pad 15 then being raised for a new operation.
  • the displacement travel of the frame 16 is determined as a function of the thicknesses of the article 2 and of the cushion 15 and of the compressibility of the latter.
  • the pad 15 is here replaced by a blowing tunnel 18 defining, above the conveyor 3, side walls 19 and an upper wall 22 between which the article received in the tubular film passes (FIG. 7 and left part of FIG. 6), these walls being provided with nozzles making it possible to direct jets of high pressure air speed 23 against the lateral and upper faces of the article partially wrapped in the pre-sealed tubular bag 6 (right part of FIG. 6 and FIG. 8).
  • the nozzles are connected via controllable control means, via a 24 ° air duct, to a source of pressurized air or gas.
  • the tunnel may also advantageously include front nozzles delivering air jets 24 on the front part of the prepackaged article.
  • the application of high speed air jets 23 and 24 causes the film to be clad or draped over the article, as shown on the right side of Figure 6 and Figure 8 expelling most of the air contained in the pre-sealed bag, the sealing-cutting knife 11 11 'then being actuated, as shown by the arrow 25, to seal the film bag in its configuration draped around the article, in the same way as previously described in relation to FIG. 4.
  • the blowing installation is determined to produce air jets having an outlet speed greater than 850 meters per minute, preferably of the order of 900 to 920 meters per minute.
  • the pad support mechanism or the blowing tunnel can be mounted on a chassis with alternating rectilinear displacement in the direction of advance of the conveyor 3 to accompany the article at least temporarily in its movement and increase the duration of pressure application on the article in order to optimally express the air contained in the sealed bag and result in a narrow draping of the film of the bag around the article.
  • the prepacking films are made of a material based on polyester or polypropylene polyamides with a softening temperature above 100 °, typically in one: polyester-polypropylene complex allowing infrared radiation to pass through for the subsequent sterilization step in the tunnel 5.
  • the infrared lamps are advantageously distributed on the top and on the bottom of the oven to radiate on both sides of the article.
EP82400019A 1981-01-08 1982-01-07 Verpackungsverfahren und -vorrichtung für Produkte der industriellen Bäckerei mit einer mittelmässigen Feuchtigkeit Withdrawn EP0056345A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8100222 1981-01-08
FR8100222A FR2497492B1 (fr) 1981-01-08 1981-01-08 Procede et dispositif de conditionnement d'articles de boulangerie/patisserie industrielle a humidite intermediaire

Publications (1)

Publication Number Publication Date
EP0056345A1 true EP0056345A1 (de) 1982-07-21

Family

ID=9253954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400019A Withdrawn EP0056345A1 (de) 1981-01-08 1982-01-07 Verpackungsverfahren und -vorrichtung für Produkte der industriellen Bäckerei mit einer mittelmässigen Feuchtigkeit

Country Status (2)

Country Link
EP (1) EP0056345A1 (de)
FR (1) FR2497492B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703023A1 (fr) * 1993-03-25 1994-09-30 Grace Sa Procédé de conditionnement de produits quelconques dans des récipients tels que par exemple des barquettes et machine comportant application de ce procédé.
US5351463A (en) * 1991-11-07 1994-10-04 Sara Lee/De N.V. Method and apparatus for making a filled and closed vacuum pak
NL1007594C2 (nl) * 1997-11-20 1999-05-26 Borgesius Holding Bv Afgifte van verse, vaste etenswaren met behulp van een afgifte-automaat.
ES2149071A1 (es) * 1997-08-01 2000-10-16 Munoz Fernandez Francisco Maquina envolvedora de productos alimenticios, preferentemente polvorones.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH337448A (de) * 1955-01-05 1959-03-31 Dehne Rudolf Verfahren zum Frischhalt-Verpacken von frischen Lebensmitteln, insbesondere von Backwaren in geschnittener Form
US3471990A (en) * 1967-01-03 1969-10-14 Johnson Co Gordon Apparatus for and method of stretching,sealing and removing the tab from packages
FR2307723A1 (fr) * 1975-04-14 1976-11-12 Unilever Nv Moyen et procede d'emballage d'aliments contenant de l'eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH337448A (de) * 1955-01-05 1959-03-31 Dehne Rudolf Verfahren zum Frischhalt-Verpacken von frischen Lebensmitteln, insbesondere von Backwaren in geschnittener Form
US3471990A (en) * 1967-01-03 1969-10-14 Johnson Co Gordon Apparatus for and method of stretching,sealing and removing the tab from packages
FR2307723A1 (fr) * 1975-04-14 1976-11-12 Unilever Nv Moyen et procede d'emballage d'aliments contenant de l'eau

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351463A (en) * 1991-11-07 1994-10-04 Sara Lee/De N.V. Method and apparatus for making a filled and closed vacuum pak
FR2703023A1 (fr) * 1993-03-25 1994-09-30 Grace Sa Procédé de conditionnement de produits quelconques dans des récipients tels que par exemple des barquettes et machine comportant application de ce procédé.
ES2149071A1 (es) * 1997-08-01 2000-10-16 Munoz Fernandez Francisco Maquina envolvedora de productos alimenticios, preferentemente polvorones.
NL1007594C2 (nl) * 1997-11-20 1999-05-26 Borgesius Holding Bv Afgifte van verse, vaste etenswaren met behulp van een afgifte-automaat.

Also Published As

Publication number Publication date
FR2497492B1 (fr) 1986-03-28
FR2497492A1 (fr) 1982-07-09

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Inventor name: LUCAS, ANDRE