EP0792802B1 - Machine de formation, remplissage et fermeture automatique de sacs, à profiles de fermeture transversaux - Google Patents

Machine de formation, remplissage et fermeture automatique de sacs, à profiles de fermeture transversaux Download PDF

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Publication number
EP0792802B1
EP0792802B1 EP97400408A EP97400408A EP0792802B1 EP 0792802 B1 EP0792802 B1 EP 0792802B1 EP 97400408 A EP97400408 A EP 97400408A EP 97400408 A EP97400408 A EP 97400408A EP 0792802 B1 EP0792802 B1 EP 0792802B1
Authority
EP
European Patent Office
Prior art keywords
film
closure
fact
machine according
ribs
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
EP97400408A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0792802A1 (fr
Inventor
Henri Bois
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.)
Flexico France SARL
Original Assignee
Flexico France SARL
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 Flexico France SARL filed Critical Flexico France SARL
Publication of EP0792802A1 publication Critical patent/EP0792802A1/fr
Application granted granted Critical
Publication of EP0792802B1 publication Critical patent/EP0792802B1/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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/188—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating profile-strips, e.g. for reclosable bags
    • 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
    • B65B9/20—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 webs being formed into tubes in situ around the filling nozzles

Definitions

  • the present invention relates to the field of bags or sachets comprising complementary closure profiles suitable for allow successive openings and closings at will the user.
  • the present invention relates to the field machines therefor, especially machines adapted for formation, filling and automatic closing of packaging based of film, in particular of thermoplastic material, comprising profiles additional fasteners, for example closing profiles male and female complementary.
  • Such machines are often called FFS, corresponding with the initials of the English expression "Form, Fill and Seal Machine”.
  • Most of these machines include a forming collar which receives the film in the planar state from an unwinder and supplies the film shaped into a tube, a filling spout which opens into this forming neck and consequently into said tube, means for conveying and securing closure profiles on the film, longitudinal welding means for closing the tube longitudinally and means capable of sequentially generating a first transverse weld before a product is introduced into the tube through the filler neck, then a second weld transverse when the product has been introduced into the tube, to close a wrapping around the latter.
  • the first attempt on the subject is described in documents US-A-4617683 and US-A-4655862. These documents which date back ten years have proposed two solutions for route the transverse profiles on the film, in the planar state, before it does not reach the forming neck.
  • the first solution is to laterally move sections of closure profiles using drive rollers placed laterally at the edge of the moving film, in combination with an aspirating displacement gripping head transverse.
  • the second solution consists in depositing profiles of closure on the film using a rotary barrel provided with means of pneumatically operated temporary retainer.
  • Document US-A-4701361 has proposed, to form a film provided sequentially of complementary closure profiles, to realize, by extrusion, a tubular film provided with helical closure profiles, extruded or added, then cut the tubular film in a helix to obtain a strip provided with equi-distributed transverse profiles.
  • Document US-A-4709398 describes a bag forming machine by horizontal movement and conformation of a film, which includes a means of grip designed to move closure profiles transversely on the movie.
  • Document US-A-4878987 proposed, to reduce the length profiles deposited on the film, and therefore improve the positioning of these, to supply the profiles not using of a lateral reserve, as described in documents US-A-4617683 and US-A-4655862, but using two reserves of profiles arranged respectively on each side of the film intended to form the bags. So, each of the two sections of sections displaced on the film, respectively from each lateral reserve, no longer covers the entire width of the film, but only half of it.
  • the document US-A-4909017 describes a machine of the FFS type which comprises a straight guide superimposed on the film, transverse to it, to position a closure profile, transversely above the film.
  • document US-A-5111643 proposes a complex installation comprising a chute which opens at the base of the forming neck for route the closure profiles carried by a support strip, and a discharge chute for the support strip.
  • the present invention now aims to improve training machines, film-based packaging with additional closing profiles.
  • the invention preferably applies to machines for automatic formation, filling and closing of packaging based on film, of the type known per se comprising a forming neck which receives in input the film in the planar state from an unwinder and provides exit the film shaped into a tube, a filling chute which opens in this forming neck and therefore in said tube, means for route closure profiles transversely on the front film that it does not reach the forming neck and to fix these on the film, longitudinal welding means for closing the tube longitudinally and means capable of sequentially generating a first transverse weld before a product is introduced into the tube through the filler neck, then a second weld transverse when the product has been introduced into the tube, to close a wrapping around the latter.
  • the means for conveying the closure profiles are suitable for fixing on the film one of two complementary profiles, in engagement, having each a length on the order of half the width of the film, and it's further provided means capable of fixing the second closure profile, on the inner wall of the film shaped into a sachet, after filling with this, when the sachet is finished.
  • the two closing profiles are carried by different width support bands.
  • the rectilinear guide 100 can be the subject of different modes of production.
  • the straight guide 100 is consisting of a channel formed by two pivoting jaws, receiving in position closing, the profile P conveyed by the means 150, but susceptible to facilitate the removal of the P profiles on the films underlying F.
  • the gripping means 150 can also be the subject of different embodiments.
  • these gripping means are formed by a clamp system commanded to close to grip the upstream end of a profile P, in order to route it through the straight guide 100, then open to release the P profile before resuming the initial position of gripping shown schematically in Figure 1.
  • the gripping means 150 can be formed by a suction head.
  • means are provided for transverse movement of the gripping means 150, synchronized with the displacement of film F.
  • Auxiliary means are preferably provided for the routing of profiles P: drive rollers 200, 202, a guide 204 of the profiles upstream of the film F, means 206 of sectioning of the P profiles, by section (the P profiles being preferably routed from a reel supply 208) and a position sensor 210.
  • the closing profiles P are fixed to the film F by any suitable means, advantageously using welding jaws, associated with the rectilinear guide 100, as shown diagrammatically under the reference 120 in figure 1.
  • the system is adapted to deposit closure profiles P covering the entire width of the film F, these profiles P being fixed on the film F over their entire length, as shown schematically on the Figure 3 and engaging only after folding and crushing of the film tubular after filling the bag, when finishing it.
  • the system can be adapted to deposit directly on the film F a pair of P-profiles in engagement, covering only half of the width of the film F, one P1 of the two profiles, adjacent to the film, being fixed on it at the depot, thanks to the welding jaws 120, while the second superimposed profile P2 is fixed on the internal wall of the sachet, when it is finished, after filling.
  • the second profile P2 can be welded to the film F thanks to the jaws of solder 50, or again thanks to transverse solder jaws additional 52, as shown diagrammatically in FIG. 4.
  • the support strip 54 of the second profile P2 is more wider than the support strip 56 of the first profile P1, to facilitate the second weld.
  • the profile P being arranged transversely on the film F before that this does not reach the forming neck 20, provision is preferably made for means facilitating the passage of this forming neck 20.
  • FIG. 4 there is shown diagrammatically at 51 an associated cutting tool to the transverse welding jaws 50 to separate the bags one once completed, and we have diagrammed at 53 a cutting tool capable of being used to make the pre-cut line 80.
  • the closing profiles P themselves can be many variations.
  • means are provided, for example in the form of bi-material P profiles or equivalent means, used to define a melting temperature on the outer surface of the support strips 54, 56 below the melting temperature on their internal surfaces.
  • the film F used can also be the subject of numerous variants. It can be a flexible film made of monolayer plastic or multilayer, if necessary coated, for example metallized.
  • the invention can also be applied to machines preparation of films equipped with profiles, which films equipped with profiles are then routed to supply machines for automatic formation, filling and closing of conventional packaging in themselves.
  • the gripping means can be formed by a needle carried by suitable training means for, on the one hand moving alternately the needle, by translation or pivoting, in approximation and distancing of the guide 100, to stitch the profile P in the close position of the guide and on the other hand move alternately the needle goes back and forth along the guide 100.
  • these training means are suitable for 1) bring the needle of the upstream end of the guide 100 to prick the free end from profile P coming from reserve 208, 2) move the needle along the guide 100 while keeping the needle in the close position engaged with the section for conveying it by traction on its upstream end, 3) move the needle away from the guide 100 to release the profile P at the end of the routing stroke, and 4) move the needle back the along the guide 100 towards the upstream end thereof while maintaining the needle in the free distant position relative to the profile, before repeat a training cycle from step 1) for the section following profile P.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Closing Of Containers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Basic Packing Technique (AREA)
EP97400408A 1996-02-27 1997-02-25 Machine de formation, remplissage et fermeture automatique de sacs, à profiles de fermeture transversaux Expired - Lifetime EP0792802B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9602390A FR2745261B1 (fr) 1996-02-27 1996-02-27 Machine de formation, remplissage et fermeture automatique de sacs, a profiles de fermeture transversaux
FR9602390 1996-02-27
CA002210774A CA2210774C (en) 1996-02-27 1997-07-17 A method and a machine for making packaging bags using a flexible film, and a packaging bag obtained thereby

Publications (2)

Publication Number Publication Date
EP0792802A1 EP0792802A1 (fr) 1997-09-03
EP0792802B1 true EP0792802B1 (fr) 2002-05-02

Family

ID=25679492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400408A Expired - Lifetime EP0792802B1 (fr) 1996-02-27 1997-02-25 Machine de formation, remplissage et fermeture automatique de sacs, à profiles de fermeture transversaux

Country Status (9)

Country Link
US (1) US5816018A (da)
EP (1) EP0792802B1 (da)
AT (1) ATE216967T1 (da)
CA (1) CA2210774C (da)
DE (1) DE69712247T2 (da)
DK (1) DK0792802T3 (da)
ES (1) ES2174195T3 (da)
FR (1) FR2745261B1 (da)
PT (1) PT792802E (da)

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FR2769288B1 (fr) * 1997-10-03 1999-12-24 Flexico France Sarl Procede de fabrication automatique de sachets, machine a cet effet et sachets obtenus
FR2770487B1 (fr) * 1997-11-06 2000-02-04 Flexico France Sarl Machine de formation, remplissage et fermeture automatique de sacs, a profiles de fermeture transversaux
US6216423B1 (en) * 1997-11-07 2001-04-17 Huntsman Kcl Corporation Method and apparatus for placing a product in a flexible recloseable container
US5956924A (en) 1997-11-07 1999-09-28 Rcl Corporation Method and apparatus for placing a product in a flexible recloseable container
FR2772004B1 (fr) * 1997-12-09 2000-02-25 Flexico France Sarl Machine de formation, remplissage et fermeture automatique de sacs, a profiles de fermeture transversaux
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Also Published As

Publication number Publication date
DE69712247D1 (de) 2002-06-06
CA2210774C (en) 2001-06-26
US5816018A (en) 1998-10-06
FR2745261A1 (fr) 1997-08-29
PT792802E (pt) 2002-09-30
ES2174195T3 (es) 2002-11-01
DK0792802T3 (da) 2002-08-19
FR2745261B1 (fr) 1998-05-07
ATE216967T1 (de) 2002-05-15
CA2210774A1 (en) 1999-01-17
EP0792802A1 (fr) 1997-09-03
DE69712247T2 (de) 2002-11-21

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