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EP1612149B1 - Procédé et dispositif pour former des poignées dans des sacs, et sac comportant deux poignées - Google Patents

Procédé et dispositif pour former des poignées dans des sacs, et sac comportant deux poignées Download PDF

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Publication number
EP1612149B1
EP1612149B1 EP05076354A EP05076354A EP1612149B1 EP 1612149 B1 EP1612149 B1 EP 1612149B1 EP 05076354 A EP05076354 A EP 05076354A EP 05076354 A EP05076354 A EP 05076354A EP 1612149 B1 EP1612149 B1 EP 1612149B1
Authority
EP
European Patent Office
Prior art keywords
bag
die
forming
machine according
station
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
EP05076354A
Other languages
German (de)
English (en)
Other versions
EP1612149A1 (fr
Inventor
Teodoro Concetti
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.)
Concetti SpA
Original Assignee
Concetti 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 Concetti SpA filed Critical Concetti SpA
Publication of EP1612149A1 publication Critical patent/EP1612149A1/fr
Application granted granted Critical
Publication of EP1612149B1 publication Critical patent/EP1612149B1/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
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/54—Cards, coupons or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B65D75/566—Hand holes or suspension apertures
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/14—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for incorporating, or forming and incorporating, handles or suspension means in packages
    • B65B61/16—Forming suspension apertures in packages
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state

Definitions

  • the present invention relates to a method and a machine for forming gripping elements in bags filled with bulk material. Such a bag with two carrying handes is disclosed in GB-A-2 341 382 .
  • the resultant final product is a filled and sealed bag which must be able to be handled with great ease during the various subsequent transportation, storage and distribution operations.
  • the technical problem which is posed, therefore, is that of providing a bag which has gripping means able to allow easy and safe manoeuvring during the various handling steps.
  • said gripping means should not involve the need to increase the strength and therefore the thickness of the material of the entire bag, but if necessary only in the zone where the said gripping means are formed, and may be performed at high speed using an automatic machine without reducing substantially the production speed.
  • a non-limiting illustrative example of a machine for filling bags 1 with bulk material 2 may be of the forming/filling type which comprises substantially at least three working stations, respectively:
  • Transportation of the bag from one station to the other is performed by means of a slide 110 provided with gripping means 111, while conveying of the bag outside of the machine is obtained by means of a motor-driven belt or roller 113.
  • the said bag transportation means consist of a slide 110 which is displaced with an alternating outward and return movement and provided with pairs of opposite grippers for gripping the bag along the opposite vertical edges thereof, said slide being able to impart to the grippers movements in a direction transverse with respect to that of feeding of the bag so as to cause opening of its mouth during its travel from the forming station F to the filling station R and closing thereof during its travel from the station R to the sealing station S.
  • an apparatus 500 for die-cutting the tubular element 101 is arranged, said apparatus being activated in accordance with a sequence controlled by the control means 1000 of the machine so as to form at least one opening 6b at constant intervals.
  • the interaxial distance of the openings 6b in the longitudinal direction is determined depending on the length of the bag 1 in the same direction.
  • the tubular element is supplied to the die-cutting apparatus 500 by means of at least two rollers 501 arranged on opposite sides with respect to the said station and by a movable roller 502 for adjusting centring of the tubular element depending on the length of the bag envisaged so as to ensure the correct position of the tubular element 101 during die-cutting.
  • the tubular element 101 is conveyed to the abovementioned forming station F, where means F10 are provided for performing a weld 5b on the bottom 1b along two lines substantially parallel to the transverse direction Y-Y of the bag 1 and spaced from each other in the longitudinal direction X-X by an amount suitable for containing the opening 6b within two bag portions of suitable length for ensuring the necessary breakage resistance.
  • the bag 1 is conveyed to the sealing station where means S10 similar to those of the forming station F perform sealing of the mouth 1a of the bag by means of two welding lines 5a extending in a direction substantially parallel to the transverse direction Y-Y of the bag 1 and suitably spaced from each other in the longitudinal direction X-X.
  • the bag 1 is conveyed to a second die-cutting station 500 where the formation of at least one hole/eyelet 6a along the side where the mouth 1a is situated and inside a strip of material situated between the two said welds 5a is performed so that the opening 6a is comprised within and integral with two bag portions of suitable length for ensuring the necessary breakage resistance.
  • the resultant product consists of a bag 1 having gripping elements 6a,6b along both the opposite transverse sides of the said bag which make gripping thereof easy and safe, both for a single user and for two users should the volume of the bag result in large dimensions and considerable weight.
  • the tubular element is supplied by means of unwinding thereof from a reel 101a; that the openings may be holes or eyelets extending in the transverse direction; that the openings along the side where the mouth 1a of the bag 1 is situated are formed separately from the step for forming the welds for closing the said bag.
  • the opening of the hole may be hot-formed following a step involving taking-in the edge of the said hole in order to provide a perimetral bead integral with the material of the bag and able to reinforce the gripping zone of the latter without the addition of materials.
  • this taking-in operation is performed by means of eccentric rotation of the hot die-cutting means around the edge of the hole.
  • this material is in the form of an adhesive strip E1 applied (Fig. 3) by means of a machine of the labelling type arranged between the reel 101a and the apparatus 500 for performing first die-cutting of the bottom zone 1b of the bag 1.
  • the label is applied (Fig. 4a) in a substantially symmetrical position (Fig. 4b) with respect to the line for cutting the bottom 1b of the bag so as to leave an adhesive strip along the first die-punched zone of the bottom (Fig. 4c) - formed before entry of the tubular element 101 into the filling machine - and an adhesive strip (Fig. 4d) along the second die-cutting zone of the mouth 1a of the bag 1, which will be performed when the bag 1 leaves the same machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Claims (31)

  1. Procédé pour former des moyens (6a, 6b) pour la préhension de sacs (1) à remplir de produits en vrac (2) dans une machine de formage-remplissage-soudage (F ; R ; S), caractérisé en ce qu' il comprend les étapes selon l'ordre suivant :
    (a) alimentation d'un élément tubulaire (101) dans un dispositif de découpage à l'emporte-pièce ;
    (b) formation d'au moins une ouverture (6b) dans une zone prédéfinie dudit élément tubulaire (101) ;
    (c) alimentation de l'élément tubulaire (101) dans un poste (F) de formage d'un sac (1) ;
    (d) réalisation d'au moins deux lignes de soudure (5b) le long de la zone inférieure (1b) du sac (1) et sur des côtés opposés dans la direction longitudinale (X-X) par rapport à ladite ouverture (6b) ;
    (e) transport du sac (1) jusqu'au poste de remplissage (R) et remplissage du sac ;
    (f) amenée du sac (1) jusqu'à un poste (S) de fermeture dudit sac ;
    (g) formation d'au moins deux lignes de soudure (5a) sensiblement parallèles à la direction transversale (Y-Y) et à une distance relative adaptée dans la direction longitudinale (X-X) du sac (1) ;
    (h) formation d'au moins une ouverture (6a) dans la zone comprise entre les deux soudures (5a) de la gueule (1a) du sac.
  2. Procédé selon la revendication 1, caractérisé en ce que l'élément tubulaire (101) est alimenté par son déroulement d'une bobine (101a).
  3. Procédé selon la revendication 1, caractérisé en ce que l'élément tubulaire est centré en position pendant l'étape comportant son découpage à l'emporte-pièce.
  4. Procédé selon la revendication 1, caractérisé en ce que ladite au moins une ouverture est un trou.
  5. Procédé selon la revendication 1, caractérisé en ce que ladite au moins une ouverture est une fente s'étendant dans la direction transversale.
  6. Procédé selon la revendication 1, caractérisé en ce que l'ouverture (6a) le long du côté où est située la gueule (1a) du sac (1) est formée pendant une étape distincte de celle de la réalisation des soudures (5a) pour fermer ledit sac.
  7. Procédé selon la revendication 1, caractérisé en ce que la découpe à l'emporte-pièce est réalisée à chaud.
  8. Procédé selon la revendication 7, caractérisé en ce que l'étape de découpe à l'emporte-pièce comprend une étape comportant de rentrer le bord de l'ouverture.
  9. Procédé selon la revendication 7, caractérisé en ce que ladite étape pour rentrer le bord de l'ouverture est réalisée au moyen d'une rotation excentrique du dispositif de découpage à l'emporte-pièce autour du centre de l'ouverture.
  10. Procédé selon la revendication 1, caractérisé en ce qu' il comprend une étape supplémentaire comportant l'application d'une bande de matériau (E1) sur l'élément tubulaire en amont de la première opération comportant le découpage à l'emporte-pièce du fond du sac.
  11. Procédé selon la revendication 10, caractérisé en ce que ladite bande de matériau est appliquée de manière symétrique par rapport à la ligne de découpage du fond pendant le formage du sac.
  12. Procédé selon la revendication 10, caractérisé en ce que ladite bande de matériau est une étiquette.
  13. Machine pour le formage et le remplissage de sacs munis de moyens de préhension, comprenant au moins un poste (F) pour le formage du sac (1) à partir d'un élément tubulaire (101) alimenté dans ledit poste de formage (F) par soudage du fond du sac, au moins un poste (R) pour remplir le sac avec le matériau (2) alimenté par un dispositif d'alimentation (200) et au moins un poste (S) pour souder la gueule (1a) du sac, caractérisée en ce qu' elle comprend un premier dispositif (500) de découpage à l'emporte-pièce placé en amont du poste de formage (F) pour former au moins une première ouverture (6b) dans l'élément tubulaire (101) dans une position correspondant à la zone du fond (1b) du sac (1) et au moins un deuxième dispositif (500) de découpage à l'emporte-pièce placé en aval du poste de remplissage pour former une deuxième ouverture (6a) dans la zone de la gueule (1a) du sac (1).
  14. Machine selon la revendication 13, caractérisée en ce qu' elle comprend une bobine (101 a) d'où une bande continue dudit élément tubulaire (101) est alimentée dans le poste de formage (F).
  15. Machine selon la revendication 13, caractérisée en ce que ledit premier dispositif (500) de découpage à l'emporte-pièce comprend des moyens (501, 502) de positionnement de l'élément tubulaire (101) dans la direction longitudinale (X-X).
  16. Machine selon la revendication 15, caractérisée en ce que lesdits moyens (501) de positionnement de l'élément tubulaire (101) sont constitués par au poins une paire de galets fixes (501) et par un galet mobile (502) pour régler le centrage de l'élément tubulaire par rapport au dispositif pour le premier découpage à l'emporte-pièce de l'élément tubulaire (101).
  17. Machine selon la revendication 13, caractérisée en ce que ledit premier dispositif de découpage à l'emporte-pièce réalise des premières ouvertures successives (6b) selon une distance d'entraxe prédéfinie.
  18. Machine selon la revendication 17, caractérisée en ce que ladite distance d'entraxe des premières ouvertures (6b) dans la direction longitudinale est prédéterminée en fonction de la longueur du sac (1) dans la même direction longitudinale.
  19. Machine selon la revendication 13, caractérisée en ce que ledit premier dispositif de découpage à l'emporte-pièce est contrôlé par des moyens (1000) de contrôle et de mise en oeuvre du cycle de machine automatique.
  20. Machine selon la revendication 13, caractérisée en ce que des moyens (F1O) pour souder le fond (1b) du sac sont prévus dans le poste de formage (F).
  21. Machine selon la revendication 20, caractérisée en ce que lesdits moyens (F1O) pour souder le fond (1b) sont aptes à former deux lignes de soudure (5b) s'étendant dans une direction sensiblement parallèle à la direction transversale (Y-Y) du sac et espacées l'une de l'autre dans la direction longitudinale (X-X) d'une distance donnée apte à contenir l'ouverture (6b) pour la préhension du sac.
  22. Machine selon la revendication 13, caractérisée en ce que des moyens (S10) pour souder la gueule (1a) du sac (1) sont prévus dans le poste de soudage (S).
  23. Machine selon la revendication 22, caractérisée en ce que lesdits moyens (S10) pour souder la gueule (1a) du sac sont aptes à former deux lignes (5a) de soudure s'étendant dans une direction sensiblement parallèle à la direction transversale (Y-Y) du sac et espacées l'une de l'autre dans la direction longitudinale (X-X) d'une distance donnée apte à contenir une deuxième ouverture (6a) pour la préhension du sac (1).
  24. Machine selon la revendication 13, caractérisée en ce que ledit deuxième dispositif (500) de découpage à l'emporte-pièce est disposé en aval du poste de soudage (S).
  25. Machine selon la revendication 13, caractérisée en ce que ledit deuxième dispositif (500) de découpage à l'emporte-pièce est apte à former des ouvertures (6a) dans une bande du sac située entre les deux soudures (5a) de la gueule dudit sac.
  26. Machine selon la revendication 13, caractérisée en ce que ledit deuxième dispositif (500) de découpage à l'emporte-pièce est contrôlé par des moyens (1000) pour contrôler et mettre en oeuvre le cycle de machine automatique.
  27. Machine selon la revendication 13, caractérisée en ce que ledit deuxième dispositif (500) de découpage à l'emporte-pièce est de type découpage à chaud.
  28. Machine selon la revendication 13, caractérisée en ce que ledit deuxième dispositif (500) de découpage à l'emporte-pièce est associé à des moyens aptes à impartir une rotation excentrique de l'appareil autour du centre de l'ouverture.
  29. Machine selon la revendication 13, caractérisée en ce qu' elle comprend un dispositif (E) pour appliquer une couche de matériau sur l'élément tubulaire (101).
  30. Machine selon la revendication 29, caractérisée en ce qu' elle comprend un dispositif (E) pour appliquer une couche de matériau qui est situé en amont du dispositif (500) pour, en premier, découper à l'emporte-pièce le fond du sac.
  31. Machine selon la revendication 30, caractérisée en ce que ledit dispositif (E) pour appliquer une couche de matériau est une machine à étiqueter.
EP05076354A 2004-06-29 2005-06-10 Procédé et dispositif pour former des poignées dans des sacs, et sac comportant deux poignées Expired - Lifetime EP1612149B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001309A ITMI20041309A1 (it) 2004-06-29 2004-06-29 Procedimento e macchina per la realizzazione di elementi di presa in sacchi riempiti con materiale alla rinfusa

Publications (2)

Publication Number Publication Date
EP1612149A1 EP1612149A1 (fr) 2006-01-04
EP1612149B1 true EP1612149B1 (fr) 2007-08-08

Family

ID=34981322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05076354A Expired - Lifetime EP1612149B1 (fr) 2004-06-29 2005-06-10 Procédé et dispositif pour former des poignées dans des sacs, et sac comportant deux poignées

Country Status (6)

Country Link
US (1) US20050284107A1 (fr)
EP (1) EP1612149B1 (fr)
AT (1) ATE369288T1 (fr)
CA (1) CA2511165A1 (fr)
DE (1) DE602005001899T2 (fr)
IT (1) ITMI20041309A1 (fr)

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DE102004038006A1 (de) * 2004-08-04 2006-03-02 Windmöller & Hölscher Kg Vorrichtung und Verfahren zur Herstellung und Befüllung von Säcken
DE102006022295A1 (de) * 2006-05-11 2007-11-15 Haver & Boecker Ohg Gebinde für Füllgut und Verfahren zu dessen Herstellung
DE102010028394B4 (de) * 2010-04-29 2019-05-23 Windmöller & Hölscher Kg Verfahren und eine Vorrichtung zur Herstellung und Befüllung von Verpackungsmitteln
US9156575B2 (en) * 2011-01-21 2015-10-13 Signode Industrial Grop LLC Bagging, sealing, and labeling system and method
US9655303B2 (en) 2013-09-17 2017-05-23 Signode Industrial Group Llc Method for containing a bale of compressible material
US10206333B2 (en) 2015-05-14 2019-02-19 Signode Industrial Group Llc Compressed bale packaging apparatus with bag applicator assist device and bag for same
US11053033B1 (en) * 2016-12-07 2021-07-06 Aleathia G. Hunter Method of constructing a packaging and displaying assembly

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Also Published As

Publication number Publication date
ITMI20041309A1 (it) 2004-09-29
DE602005001899T2 (de) 2008-05-08
CA2511165A1 (fr) 2005-12-29
EP1612149A1 (fr) 2006-01-04
DE602005001899D1 (de) 2007-09-20
US20050284107A1 (en) 2005-12-29
ATE369288T1 (de) 2007-08-15

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