FR2478026A1 - Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag - Google Patents

Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag Download PDF

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Publication number
FR2478026A1
FR2478026A1 FR7929149A FR7929149A FR2478026A1 FR 2478026 A1 FR2478026 A1 FR 2478026A1 FR 7929149 A FR7929149 A FR 7929149A FR 7929149 A FR7929149 A FR 7929149A FR 2478026 A1 FR2478026 A1 FR 2478026A1
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FR
France
Prior art keywords
bag
sheets
envelope
suction cups
holes
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Withdrawn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
FR7929149A
Other languages
French (fr)
Inventor
Matti Gunnar Wilska
Markku Inkinen
Jukka Savikkomaa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7929149A priority Critical patent/FR2478026A1/en
Publication of FR2478026A1 publication Critical patent/FR2478026A1/en
Withdrawn legal-status Critical Current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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open

Abstract

The bag (2) consists of multi-layer flexible foil material and has air-permeable areas in the outer layers for engagement by vacuum suction heads (1) which are then moved apart to open the bag for filling. These areas permit the vacuum to act on each innermost layer (4), thus preventing these from clinging together. The areas may be provided with small openings or may be slitted (3) preferably at right angles to the longitudinal direction of the bag. There may be one vacuum head movable at right angles to each side of the flat-folded bag.

Description

La présente invention concerne la mise en condition d'ouverture, au moyen de ventouses, d'un emballage ou enveloppe - tel qu'un sac ou un tube - fait de plusieurs couches ou feuilles de matière souple
Dans l'art antérieur, les sacs à plusieurs couches doivent entre ouverts manuellement.The present invention relates to the opening condition, by means of suction cups, of a packaging or envelope - such as a bag or a tube - made of several layers or sheets of flexible material.
In the prior art, multi-layer bags must be opened manually.

La présente invention a pour but d'éliminer cet inconvénient et de permettre la mécanisation et/ou l'automatisation de l'ouverture de tels emballages. The present invention aims to eliminate this drawback and allow the mechanization and / or automation of the opening of such packages.

A cet effet, l'invention préconise l'utilisation de ventouses et l'aménagement de trous de configuration appropriée dans le sac, dans la zone d'action des ventouses. To this end, the invention recommends the use of suction cups and the provision of holes of suitable configuration in the bag, in the area of action of the suction cups.

De plus, l'expérience montre que l'opération d'ouverture ne peut titre parfaitement réussie qu'en reeourant à des ventouses qui, dans la direction transversale du sac, sont étroites et qui, dans la direction de la longueur du sac, sont longues.Furthermore, experience shows that the opening operation can only be perfectly successful by using suction cups which, in the transverse direction of the bag, are narrow and which, in the direction of the length of the bag, are long.

L'invention a pour objet un procédé dans lequel, en egoeptant les deux sacs ou feuilles se trouvant le plus à l'intérieur, on aménage des trous dans les feuilles ou films formant le tube ou sac, et l'on ouvre celui-ci au moyen de ventouses qui sont avantageusement étroites dans la direction transversale du sac. Des essais ont montré que ce procédé permet d'ouvrir des sacs dans sensiblement 100% des cas, ce qui est nécessaire pour recourir à des
Machines automatiques.The subject of the invention is a method in which, by egoepting the two bags or sheets which are the most inside, holes are made in the sheets or films forming the tube or bag, and the latter is opened. by means of suction cups which are advantageously narrow in the transverse direction of the bag. Tests have shown that this process makes it possible to open bags in substantially 100% of cases, which is necessary to resort to
Automatic machines.

L'invention a également pour objet un emballage ou enveloppe, par exemple un sac ou un tube, qui est constitué de plusieurs feuilles ou films de matière souple superposées et qui permet de mettre en oeuvre le procédé ci-dessus par le fait qu'à l'exception des deux feuilles se trouvant le plus à l'intérieur, lesdites feuilles de matière souple comportent au moins un tPou. Ces trous peuvent entre soit des perforations réalisées par exemple avec une pointe acérée, soit des incisions dont la longueur est orientée transversalement. The subject of the invention is also a packaging or envelope, for example a bag or a tube, which consists of several superimposed sheets or films of flexible material and which makes it possible to implement the above method by the fact that at With the exception of the two sheets furthest inside, said sheets of flexible material comprise at least one tPou. These holes can be between either perforations made for example with a sharp point, or incisions whose length is oriented transversely.

La description qui va suie, en regard des dessins annexés à titre d'exemple non limitatif , permettra de bien comprendre comment l'invention peut être mise en pratique. The description which follows, with reference to the accompanying drawings by way of nonlimiting example, will make it possible to understand clearly how the invention can be put into practice.

La figure 1 représente un tube à deux cruches en feuilles ou films de matière plastique, qui est obtenu pr couture ou soudage ou collage etc, et qui est applati lorsqu'il est en eondition de fermeture. FIG. 1 represents a tube with two jugs in sheets or plastic films, which is obtained by sewing or welding or gluing, etc., and which is flattened when it is in closed condition.

La figure 2 représente le mEme objet en condition d'ouverture. FIG. 2 represents the same object in open condition.

Ce sac est ouvert comme suit : des ventouses longues et étroites sont appliquées au tube 2 près de son extrémit, dans la zone médiane du tube 2. Celui-ci comporte plusieurs couches, et est pourvu d'incisions transversales 3, à l'exception des deux tubes les plus à l'intérieur. Lorsque l'aspiration est appliquée, les ventouses s'attachent au film de matière plastique, des deux c8tés. Bien que les incisions 3 soient perméables à les ventouses sont maintenues avec une étanchéité suffisante, et la succion est appllquee aux peux filme situes tont à fait à l'intérieur. Lorsque les ventouses sont écartées l'une de l'autre, le tube s'ouvre au degré désiré et, si cela s'effectue dans une machine de conditionnement, le tube peut aller à l'étape de conditionnement suivante.Si les incisions 3 ont une longueur suffisante ainsi que l'embouchure des ventouses, l'alignement qui est un paramètre important dans les automates, ne constitue pas un problème. De plus, aveo une ventouse étroite la force de succion est conservée lorsque le film (ou feuille) se courbe ou se plie dans la zone de cette ventouse. This bag is opened as follows: long and narrow suction cups are applied to the tube 2 near its end, in the median zone of the tube 2. The latter comprises several layers, and is provided with transverse incisions 3, with the exception of the two innermost tubes. When suction is applied, the suction cups attach to the plastic film on both sides. Although the incisions 3 are permeable to the suction cups are maintained with sufficient sealing, and the suction is applied to the film can located almost all inside. When the suction cups are spaced from each other, the tube opens to the desired degree and, if done in a packaging machine, the tube can go to the next conditioning step. have a sufficient length as well as the mouth of the suction cups, alignment which is an important parameter in automatic machines, is not a problem. In addition, with a narrow suction cup the suction force is retained when the film (or sheet) bends or folds in the area of this suction cup.

L'avantage supplémentaire qui en résulte est tel que la mise en condition d'ouverture est assurée m8me si l'alignement est imparfait. On peut obtenir le mme résultat en remplaçant les incisions 3 par une série de trous couvrant la m8me zone que celles-ci.The additional advantage which results from it is such that the opening condition is ensured even if the alignment is imperfect. The same result can be obtained by replacing the incisions 3 with a series of holes covering the same area as these.

I1 est avantageux que la largeur de l'embouchure de la ventouse de forme oblongue soit de l'ordre de 1 à 4 mm, et que la longueur de cette emboucnure soit de l'ordre de 15 à 30 mm.  I1 is advantageous that the width of the mouth of the oblong suction cup is of the order of 1 to 4 mm, and that the length of this mouth is of the order of 15 to 30 mm.

Claims (7)

REVENDICATIONS 1.- Procédé pour ouvrir, au moyen de ventouses, une enveloppe telle qu'un sac ou un tube faite de plusieurs couches ou feuilles de matière souple, caractérisé par le fait que lton aménage dans les feuilles - les deux feuilles se trouvant le plus à l'intérieur étant exceptées un ou plusieurs trous, et que l'on ouvre ltenveloppe au moyen de ventouses appliquées sur au moins une partie de la zone occupée par les tonus. 1.- Method for opening, by means of suction cups, an envelope such as a bag or a tube made of several layers or sheets of flexible material, characterized by the fact that it is arranged in the sheets - the two sheets being the most except for one or more holes inside, and that the envelope is opened by means of suction cups applied to at least part of the zone occupied by the tone. 2.- Procédé selon la revendication 1, caractérisé par le fait que la zone d'action des -ventouses est pourvue d'une pluralité de trous perforés au moyen d'une pointe acérée. 2.- Method according to claim 1, characterized in that the area of action of the suction cups is provided with a plurality of perforated holes by means of a sharp point. 3.- Procédé selon 1'une quelconque des revendications 1 ou 2, caradérisé par le fait que la zone d'action des ventouses est pourvue d'au moins un trou allongé en direction transversale, réalité par incision. 3.- Method according to any one of claims 1 or 2, caradérisé in that the area of action of the suction cups is provided with at least one elongated hole in the transverse direction, actually by incision. 4.- Ventouse pour mette en oeuvre le procédé selon l'une quelconque des revendications précédentes, caractérisée par le fait que son embouchure possède une section droite de forme oblongue, dont la longueur, correspondant à la direction longitudinale du tube ou sac, est de préférence de tordre de 15 à 30 mm, et dont la largeur est de préférence de l'ordre de 1 à'4 mm. 4. Suction cup for implementing the method according to any one of the preceding claims, characterized in that its mouth has a straight section of oblong shape, the length of which, corresponding to the longitudinal direction of the tube or bag, is preferably twist from 15 to 30 mm, and whose width is preferably of the order of 1 to 4 mm. 5. - Enveloppe telle qu'un sac ou un tube, faite de plusieurs couches en feuille ou film de matière souple, pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 3, caractérise par le fait que les feuilles qui la composent comportent, à l'exception des deux feuilles se trouvant le plus à l'intérieur, au moins un trou. 5. - Envelope such as a bag or tube, made of several layers of sheet or film of flexible material, for implementing the method according to any one of claims 1 to 3, characterized in that the sheets which make it up, with the exception of the two sheets which are furthest inside, at least one hole. 6.- Enveloppe selon la revendication 5, carac térisde par le fait que les trous sont des perforations. 6. An envelope according to claim 5, charac terisde in that the holes are perforations. 7. - Enveloppe selon la revendication 5, carac térisF par le fait que les trous sont des incisions oblongues orientées transversalement.  7. - Envelope according to claim 5, charac terisF in that the holes are oblong incisions oriented transversely.
FR7929149A 1979-11-27 1979-11-27 Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag Withdrawn FR2478026A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7929149A FR2478026A1 (en) 1979-11-27 1979-11-27 Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7929149A FR2478026A1 (en) 1979-11-27 1979-11-27 Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag

Publications (1)

Publication Number Publication Date
FR2478026A1 true FR2478026A1 (en) 1981-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR7929149A Withdrawn FR2478026A1 (en) 1979-11-27 1979-11-27 Multilayer flexible foil bag - is opened by movable vacuum heads applied to air-permeable areas in outer layers to either side of bag

Country Status (1)

Country Link
FR (1) FR2478026A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930829A1 (en) * 1989-09-14 1991-03-28 Indag Gmbh DEVICE FOR FILLING FOLDED FILM BAGS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930829A1 (en) * 1989-09-14 1991-03-28 Indag Gmbh DEVICE FOR FILLING FOLDED FILM BAGS

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