EP1254839B1 - Méthode et dispositif pour envelopper des articles avec une feuille d'emballage - Google Patents

Méthode et dispositif pour envelopper des articles avec une feuille d'emballage Download PDF

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Publication number
EP1254839B1
EP1254839B1 EP02009123A EP02009123A EP1254839B1 EP 1254839 B1 EP1254839 B1 EP 1254839B1 EP 02009123 A EP02009123 A EP 02009123A EP 02009123 A EP02009123 A EP 02009123A EP 1254839 B1 EP1254839 B1 EP 1254839B1
Authority
EP
European Patent Office
Prior art keywords
articles
groups
feeding line
sheets
line
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
EP02009123A
Other languages
German (de)
English (en)
Other versions
EP1254839A3 (fr
EP1254839A2 (fr
Inventor
Gianluigi Gamberini
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.)
Tissue Machinery Co SpA
Original Assignee
Tissue Machinery Co SpA
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 Tissue Machinery Co SpA filed Critical Tissue Machinery Co SpA
Publication of EP1254839A2 publication Critical patent/EP1254839A2/fr
Publication of EP1254839A3 publication Critical patent/EP1254839A3/fr
Application granted granted Critical
Publication of EP1254839B1 publication Critical patent/EP1254839B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction
    • 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
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles

Definitions

  • the present invention relates to wrapping articles with a packaging sheet.
  • the invention relates to a method and an apparatus for wrapping articles stacked in piles or in rolls by a film of plastic material, e.g. polyethylene.
  • consumption articles such as rolls of toilet paper or kitchen towels are usually packaged in packs or groups by a film or plastic transparent material, e.g. polyethylene, polythene, polypropylene, etc.
  • the articles are packaged by machines, which form groups of articles, usually in a loading or collecting tray, and which push the grouped articles upwards by means of a raising plate, against a sheet of plastic material, which is kept spread over the plate.
  • the group of articles is introduced into a space, which is formed by fixed walls and which those skilled in the art call "hopper".
  • the sheet of plastic material wraps the upper surface of the so grouped articles.
  • the sheet In phase relation with the raising plate downward return movement, the sheet is tucked in against the lower surface of the group of articles by two movable horizontal plates.
  • a conveyor equipped with vertical arms, moves the group of articles wrapped with the sheet of plastic material toward a welding station, where the package is closed by welding the overlapped edges of the sheet of plastic material, on the lower surface of the grouped articles.
  • the just formed group of articles hits the sheet of plastic packaging material with its larger surface and the sheet is tucked on the opposite surface by overlapping and welding the edges thereof.
  • the object of the present invention is to propose a method for wrapping articles according to claim 1, according to which the groups of articles move as linearly as possible and without changes of direction or stops necessary for this purpose.
  • Another object of the present invention is to propose an apparatus according to claim 7 which carries out the above method, which is simple to construct and which is easily and rapidly adaptable to different sizes of articles to be packaged as well as of the ready packages, without the necessity to use a complicated structure, thus lowering the production costs.
  • a further object of the present invention is to propose a method and an apparatus which produce packages formed by groups of articles according to what has been presented previously, and which allow to leave completely free the two most extended surfaces of the packages or groups of packaged articles, so that these surfaces can be used for printing commercial advertisement or other information.
  • the reference numeral 1 indicates a feeding line for articles 2 to be wrapped with a packaging sheet 3.
  • the feeding line 1 is formed by e.g. a conveyor equipped with a series of bars 4 defining spaces, which receive the articles 2 to be packaged, already arranged in groups according known techniques.
  • Each space defined between the bars 4 is provided with related pusher members 5, which are aimed at transferring groups of articles 2 crosswise to the line 1.
  • the pusher members 5 are carried, according to known techniques, by conveying means, not shown, arranged beside the feeding line 1.
  • the panel 6 extends up to the point, in which the feeding line 1 is located beside a line 7 for wrapping the groups of articles 2.
  • the line 7 for wrapping groups of articles 2 extends beside the articles 2 feeding line 1 and wraps the groups of articles 2 with respective packaging sheets, which are preferably constituted by a film of plastic material, e.g. polyethylene, polythene, polypropylene, or another material typically used for packaging.
  • a film of plastic material e.g. polyethylene, polythene, polypropylene, or another material typically used for packaging.
  • the wrapping line 7 is formed by a pair of conveying belts 71, 72, arranged one above the other, extending substantially along the entire operative extension of the machine.
  • the conveying belts 71, 72 are mounted in a close loop on the wheels or rolls 70 and are operated in opposite directions, with peripheric speed equal to that of the feeding line 1, so as to define respective opposite runs, which move simultaneously in the forward movement direction A (see Figure 4 ).
  • the sheets 3, perfectly cut from a bobbin of the above mentioned packaging material, are arranged kept spread out, by suitable support and movement means 8, on a vertical plane, in an intermediate position between the articles 2 feeding line 1 and the wrapping line 7.
  • the sheets 3 are moved in the forward movement direction A, with a speed equal to the speed of the above mentioned lines 1 and 7, between related pairs of belts 9, situated respectively above and below horizontal planes defined by the conveying belts 71, 72, as it is clearly seen in Figure 2 .
  • the belts 9 are carried and operated by known turn-around means 8, shown in a schematic way.
  • the groups of articles 2 to be packaged are conveyed along the feeding line 1.
  • the groups are formed previously between two lateral guides, not shown, and then pushed orderly inside the spaces defined by the bars 4, having their lateral shorter extension turned in the forward movement direction A.
  • the groups to be packaged are advantageously formed by a series of rolls arranged side by side longitudinally in only one layer or in two layers, put one over the other, and the above mentioned lateral shorter extension coincides with the lateral extension of the rolls arranged side by side.
  • the single packaging sheets are moved forward in suitable time relation with the forward movement of the articles 2 along the feeding line 1.
  • the groups of articles 2 are transferred by the pusher members 5 crosswise to the feeding line 1, as it is clearly shown in Figure 1A , so that the articles are introduced between the opposite runs of the conveying belts 71, 72 of the wrapping line 7, which is operated with the same speed as the feeding ling 1.
  • the lateral narrowed dimension of the groups of articles 2 hit the packaging sheets 3, so as to fold the latter following the U-shape.
  • the sheets 3 wrap the most extended surfaces, i.e. upper and lower, of the groups of articles 2.
  • blowing means 10 are operated ( Figure 3 ).
  • the blowing means 10 are aimed at maintaining spread the edges of the sheets 3 while being folded.
  • the distance between the belts 71 and 72 corresponds to the vertical dimension of the packages 22, as shown in Figure 4B .
  • the folding members indicated in this case with 41, have such a shape as to overlap the edges in the region of the center line of the lower layer of articles, or rolls, for the purpose which will become evident later on.
  • the sheets 3 are welded along the longitudinal side of the groups of articles 2, opposite to the one which hits the sheets 3, having a corresponding narrowed dimension; the welding line 33, indicated in Figure 4A , is situated more or less in the central area of the narrowed dimension of the package, or shifted a bit with respect thereto.
  • the welding member is situated in such a way that the welding line 33 is situated in the central area of e.g. the lower layer of articles, or shifted a bit with respect thereto.
  • the welding member presses the overlapped edges always against the article or articles situated below, and not against an empty area, which is created in the central part of the package side.
  • the groups of articles 2, wrapped with the packaging sheets 3, closed all around are subjected to the change of the direction of forward movement of the line 7, without the stops, so as to close the packages in the regions of the opposite heads of the articles 2.
  • the packages are transferred to the line 13 by e.g. a transporting device 14, rotating on a vertical axis, seen in Figure 1B .
  • the rotating transporting device 14 features a series of radial arms 15, which carry on their free end, pivoted by a pin 16, respective picking up means 17 extending downwards.
  • the picking up means 17 pick up the groups of articles 2, wrapped with the packaging sheets 3 wrapped all around them, and transfer them orderly to the outlet line 13, maintaining unchanged their orientation due to the simultaneous rotation on the pin 16, in the direction opposite to the rotation of the conveyor 14.
  • the action of the picking up means 17 is possible due to the fact that the lower conveying belt 72 extends longitudinally beyond the extremity of the upper conveying belt 71, as clearly seen in Figure 4a .
  • Two or more bands 73, 74 are situated above the terminal part of the conveying belt 72 extending beyond the upper conveying belt 71.
  • the bands 73, 74 are mounted on corresponding wheels and moved with a peripheric speed equal to the speed of the two conveying belts 71 and 72.
  • the bands 73 and 74 hold the upper part of the semi-packaged group of articles by pressing it against the lower conveying belt 72, situated below.
  • the groups of articles 2 below the bands 73, 74 are picked up by two movable parts 17a, 17b of the picking up means 17, which move close from above and grip the group of articles 2 therebetween.
  • the picking up means 17 release the previously picked up group of articles onto the outlet line 13 and, simultaneously, the package is rotated in the direction opposite to the rotation of the rotating conveyor, so that the package maintains its orientation, although its forward movement direction changes without stopping the movement.
  • the picking up means 17 release the semi-packaged group of articles in the initial area of upper holding bands 75, 76, similar to the upper bands 73 and 74 and fulfilling the same function.
  • the flaps of the still open heads of the package are folded and welded together along the outlet line.
  • the method and apparatus according to the present invention achieve the aim of wrapping articles, such as in particular rolls of paper or the like, gathered in packs or groups, within a film, in such a way as to leave perfectly free from welding both the most extended surfaces of the packs or groups of packaged articles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packaging Of Special Articles (AREA)

Claims (13)

  1. Méthode pour envelopper des articles dans une feuille d'emballage, caractérisée en ce qu'elle inclut :
    - le transport le long d'une ligne d'alimentation (1) des groupes d'articles (2, 22) à emballer, les groupes étant disposés de façon ordonnée avec une dimension latérale restreinte desdits groupes d'articles (2, 22) orientée selon la direction d'avancement (A) ;
    - le transport de chaque feuille d'emballage (3) à côté de ladite ligne d'alimentation (1), en phase parfaite avec l'avancement desdits groupes d'articles (2, 22) le long de ladite ligne d'alimentation (1) ;
    - le transfert desdits groupes d'articles (2, 22) de façon transversale par rapport à ladite ligne d'alimentation (1), de façon à ce que les groupes d'articles touchent lesdites feuilles d'emballage (3) avec ladite dimension latérale restreinte afin de plier lesdites feuilles (3) autour desdits groupes d'articles (2, 22) ;
    - la jonction des bords pliés desdites feuilles d'emballage (3) le long du côté opposé desdits groupes d'articles (2, 22) présentant une dimension latérale restreinte correspondante ;
    - le transfert des groupes d'articles (2, 22) respectivement enveloppés avec lesdites feuilles d'emballage (3) de façon transversale par rapport à la direction d'avancement le long de ladite ligne d'alimentation (1), en maintenant inchangée l'orientation des groupes d'articles (2, 22) afin de fermer les emballages dans la zone des parties supérieures opposées desdits articles (2, 22).
  2. Méthode selon la revendication 1, caractérisée en ce que lesdites feuilles d'emballage (3) sont déplacées, en étant maintenues sur un plan vertical, de façon longitudinale par rapport à ladite ligne d'alimentation (1).
  3. Méthode selon la revendication 1, caractérisée en ce que lesdites feuilles d'emballage (3) sont déplacées vers l'avant à côté de ladite ligne d'alimentation (1), à une vitesse égale à celle de la ligne d'alimentation (1).
  4. Méthode selon la revendication 1, caractérisée en ce que lesdits groupes d'articles (2, 22) sont transférés transversalement par rapport à la dite ligne d'alimentation (1), afin de toucher lesdites feuilles d'emballage (3) dans une zone centrale, pliant ainsi lesdites feuilles (3) sur les surfaces les plus étendues, supérieures et inférieures, desdits groupes d'articles (2, 22).
  5. Méthode selon la revendication 1, caractérisée en ce que des moyens de soufflage (10), apte à maintenir tendus les bords desdites feuilles d'emballage (3) lors de leur pliage, sont actionnés lors de la phase de transfert desdits groupes d'articles (2, 22) transversalement à ladite ligne d'alimentation (1).
  6. Méthode selon la revendication 1, caractérisée en ce que lesdits groupes d'articles (2, 22) sortant de ladite ligne d'alimentation (1), sont saisis par leurs surfaces les moins étendues déjà fermées pour les transférer sur une ligne de sortie (13) sans modifier leur orientation afin d'effectuer le pliage et la soudure des bords des surfaces les moins étendues encore ouvertes.
  7. Dispositif pour envelopper des groupes d'articles avec une feuille d'emballage, caractérisé en ce qu'il inclut :
    - une ligne d'alimentation (1) pour alimenter des groupes d'articles (2, 22) à emballer, disposés de manière ordonnée avec une dimension latérale restreinte desdits groupes d'articles (2, 22) orientée selon la direction d'avancement (A) ;
    - des moyens de traction (9) pour déplacer chaque feuille d'emballage (3) à côté de ladite ligne d'alimentation (1) en phase parfaite avec l'avancement desdits groupes d'articles (2, 22) le long de ladite ligne d'alimentation (1) ;
    - une ligne d'enveloppage (7) des articles (2, 22) située à côté de ladite ligne d'alimentation (1) et incluant une bande transporteuse supérieure (71) et une bande transporteuse inférieure (72), dites bandes transporteuses (71, 72) disposées l'une en dessous de l'autre et opérant dans des directions opposées, avec une vitesse périphérique équivalente à celle de la ligne d'alimentation (1), afin de définir des courses opposées respectives se déplaçant simultanément dans ladite direction d'avancement (A) ;
    - des poussoirs (5), aptes à transférer lesdits groupes d'articles (2, 22) transversalement à ladite ligne d'alimentation (1), de telle sorte que les groupes d'articles touchent lesdites feuilles d'emballage (3) avec ladite dimension latérale restreinte et à introduire les groupes d'articles (2, 22) avec leur feuilles respectives (3) entre ladite paire de bandes transporteuses (71, 72) afin de plier lesdites feuilles (3) sur lesdits groupes d'articles (2, 22) ;
    - des moyens de soudage (12) aptes à joindre les bords pliés desdites feuilles d'emballage (3) le long du côté opposé desdits groupes d'articles (2, 22) présentant une dimension latérale restreinte correspondante ;
    - des moyens de fonctionnement (14) aptes à modifier la direction d'avancement des groupes d'articles (2, 22) partiellement emballés afin de souder les parties supérieures desdits emballages.
  8. Dispositif selon la revendication 7, caractérisé en ce que lesdits moyens de fonctionnement incluent, en aval de ladite ligne (7) pour emballer lesdits groupes d'articles (2, 22) avec lesdites feuilles d'emballage (3), un appareil de transport (14) en rotation sur un axe vertical, ledit élément de transport rotatif (14) comportant une série d'éléments de prise (17), pivotant à la périphérie, aptes à prendre lesdits groupes d'articles (2, 22), enveloppés dans les feuilles d'emballage (3), et à les transférer de façon ordonnée vers une ligne de sortie (13), en maintenant inchangée leur orientation par effet de la rotation simultanée desdits éléments de prise (17), dans la direction opposée au sens de rotation dudit appareil de transport rotatif (14).
  9. Dispositif selon la revendication 8, caractérisé en ce que la partie en aval de ladite bande transporteuse (72) s'étend au-delà de l'extrémité de la bande transporteuse supérieure (71) et qu'au moins une courroie (73, 74) est située dans la zone étendue afin de retenir, par la partie supérieure, les groupes d'articles semi-emballés en les appuyant contre la bande transporteuse inférieure (72) située en dessous, avec lesdits éléments de prise (17) agissant au-dessus desdits groupes d'articles.
  10. Dispositif selon la revendication 8, caractérisé en ce que ladite ligne (13) inclut au moins une courroie (75, 76) apte à retenir, par la partie inférieure, les groupes d'articles semi-emballés en les appuyant contre la ligne (13) située en dessous, avec lesdits groupes d'articles introduits par lesdits moyens de prise (17) entre ladite ligne (13) et les courroies (75, 76).
  11. Dispositif selon la revendication 7, caractérisé en ce que ladite ligne d'alimentation (1) inclut un élément convoyeur équipé d'une série de barres (4), entre lesquelles sont placés les groupes d'articles (2, 22) à emballer, avec les espaces définis par lesdites barres (4) connectés aux poussoirs respectifs (5) qui transfèrent lesdits groupes d'articles (2, 22) transversalement à ladite ligne d'alimentation (1).
  12. Dispositif selon la revendication 7, caractérisé en ce qu'il inclut des moyens de soufflage (10) situés dans la zone où les groupes d'articles (2, 22) sont enveloppés et aptes à maintenir tendus les bords desdites feuilles d'emballage (3) lors de leur pliage.
  13. Dispositif selon la revendication 7, caractérisé en ce que lesdits moyens de soudage (12), aptes à joindre les bords pliés desdites feuilles d'emballage (3), incluent des courroies de soudage agissant le long de ladite ligne (7) pour emballer lesdits groupes d'articles (2, 22) à l'intérieur desdites feuilles d'emballage (3), en aval des éléments de pliage (11, 41) aptes à superposer les extrémités ouvertes desdits bords des feuilles (3).
EP02009123A 2001-04-25 2002-04-24 Méthode et dispositif pour envelopper des articles avec une feuille d'emballage Expired - Lifetime EP1254839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00755/01A CH696493A5 (it) 2001-04-25 2001-04-25 Metodo e apparecchiatura per l'avvolgimento di articoli mediante un foglio di confezionamento.
CH7552001 2001-04-25

Publications (3)

Publication Number Publication Date
EP1254839A2 EP1254839A2 (fr) 2002-11-06
EP1254839A3 EP1254839A3 (fr) 2002-11-27
EP1254839B1 true EP1254839B1 (fr) 2011-04-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009123A Expired - Lifetime EP1254839B1 (fr) 2001-04-25 2002-04-24 Méthode et dispositif pour envelopper des articles avec une feuille d'emballage

Country Status (4)

Country Link
EP (1) EP1254839B1 (fr)
AT (1) ATE506259T1 (fr)
CH (1) CH696493A5 (fr)
DE (1) DE60239775D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11834211B2 (en) 2019-09-19 2023-12-05 Korber Tissue S.p.A. Packing machine for paper product converting line and method for packing of paper products

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224550A1 (de) * 2014-12-01 2016-06-02 Krones Aktiengesellschaft Vorrichtung und Verfahren zur Ausrichtung von zu Gruppen zusammengefassten Artikeln und/oder Stückgütern
IT201800006936A1 (it) * 2018-07-04 2020-01-04 Apparecchiatura e metodo per il confezionamento di prodotti

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238837B (de) * 1961-10-19 1967-04-13 Hesser Ag Maschf Vorrichtung zum taktweisen Zufuehren von Gegenstaenden zu den Faltorganen einer Einwickelmaschine
DE4442641A1 (de) * 1994-11-30 1996-06-05 Wrapmatic Spa Verfahren zur Aussenumwicklung mit Folie von bereits zu Paketen vorkonfektionierten Produktgruppen
IT1320710B1 (it) * 2000-10-19 2003-12-10 Casmatic Spa Macchina confezionatrice automatica e procedimento per ilconfezionamento di prodotti.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11834211B2 (en) 2019-09-19 2023-12-05 Korber Tissue S.p.A. Packing machine for paper product converting line and method for packing of paper products

Also Published As

Publication number Publication date
ATE506259T1 (de) 2011-05-15
DE60239775D1 (de) 2011-06-01
EP1254839A3 (fr) 2002-11-27
CH696493A5 (it) 2007-07-13
EP1254839A2 (fr) 2002-11-06

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