EP0775633A1 - Vorrichtung zum Entfalten für Maschinen zum selbsttätigen Formen, Füllen und Verschliessen von Verpackungen aus flexiblen Folien - Google Patents

Vorrichtung zum Entfalten für Maschinen zum selbsttätigen Formen, Füllen und Verschliessen von Verpackungen aus flexiblen Folien Download PDF

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Publication number
EP0775633A1
EP0775633A1 EP96402537A EP96402537A EP0775633A1 EP 0775633 A1 EP0775633 A1 EP 0775633A1 EP 96402537 A EP96402537 A EP 96402537A EP 96402537 A EP96402537 A EP 96402537A EP 0775633 A1 EP0775633 A1 EP 0775633A1
Authority
EP
European Patent Office
Prior art keywords
assemblies
film
transverse weld
plane
transverse
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Withdrawn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
EP96402537A
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English (en)
French (fr)
Inventor
Henri Georges Jean-Claude 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 EP0775633A1 publication Critical patent/EP0775633A1/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Withdrawn legal-status Critical Current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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap
    • 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 machines for forming, filling and automatically closing packaging based on flexible films, for example a thermoplastic material, in particular based on films comprising closure profiles, in particular with complementary male and female slides.
  • the film can be pre-equipped with closure profiles before it arrives on the neck, or alternatively the machine can comprise means for supplying closure profile, preferably complementary male and female slide profiles, and means suitable for fix by welding said sections on the film.
  • the Applicant has itself proposed, in document FR-A-2716260, an improvement consisting of a unfolding system comprising at least two suction cups placed respectively on either side of the packaging bags and capable of relative displacement in a general direction parallel to the transverse weld lines.
  • the present invention now aims to further improve the automatic packaging, filling and closing machines.
  • an unfolding system comprising two assemblies capable of sequential displacements, in approach and away from the transverse weld plane, which assemblies each support at least one elastic jack carrying a biasing member, said jack being inclined relative to the transverse weld plane and to the direction of movement of the assemblies, so that when the assemblies are brought closer to the transverse weld plane, the jacks are retracted and the biasing members automatically moved outwards.
  • each assembly carries a pair of jacks.
  • each cylinder is inclined by about 45 ° relative to the transverse weld plane and to the direction of movement of the assemblies.
  • the axes of the elastic cylinders intersect in the vicinity of the longitudinal axis of the machine.
  • the present invention applies in particular to the production of packaging based on films of thermoplastic material.
  • the invention can find application in the formation of sachets based on flexible film of different nature, for example based on aluminum or paper.
  • This longitudinal axis O-O is generally vertical. However, as a variant, for certain machines, the axis O-O can be horizontal.
  • the unfolding system comprises two assemblies 100 capable of sequential displacement in approach and in distancing from the transverse weld plane S.
  • These assemblies 100 are preferably symmetrical with respect to the transverse weld plane S.
  • This plane S will be called the main plane of symmetry hereinafter.
  • the assemblies 100 preferably have a second symmetry with respect to the section plane II-II of FIG. 2, orthogonal to the transverse weld plane S and passing through the longitudinal axis OO. This plane II-II will be called secondary plane of symmetry later.
  • the assemblies 100 are moved by any suitable conventional means, preferably fluid-actuated jacks. These are not shown in the appended figures to simplify the illustration.
  • the assemblies 100 are brought closer to the transverse weld plane S, before making a transverse weld, in order to stress the film across its width and to remove any folds that may be present.
  • the assemblies 100 are then moved away from the transverse weld plane S, after completion of the transverse weld, to allow the film to advance along the axis O-O.
  • the assemblies 100 are placed in a fixed position relative to the axis of advancement O-O.
  • each assembly 100 supports two elastic jacks 150.
  • Each of these elastic jacks 150 can be formed for example of a body 152 and a rod 154 movable in translation relative to the body 152 and urged in extension by an integrated spring not visible in the appended figures.
  • the axes 156 of the four elastic cylinders 150 are inclined on the order of 45 ° relative to the transverse weld plane S (main plane of symmetry) and relative to the secondary plane of symmetry which coincides with the direction of movement of the assemblies 100.
  • the axes 156 of the four elastic cylinders 150 are intersecting along the longitudinal axis OO.
  • each elastic cylinder 150 on the associated assembly 100 Preferably, means are provided allowing an adjustment positioning each elastic cylinder 150 on the associated assembly 100.
  • These adjustment means can take many configurations. They are shown diagrammatically under the reference 160 in FIG. 1 appended.
  • adjustment means 160 can be formed by grooves parallel to the secondary plane of symmetry II-II, and receiving complementary locking means. Such means 160 make it possible to adjust the position of the jacks 150 on the associated assembly 100, relative to the main plane of symmetry S, that is to say parallel to the secondary plane of symmetry II-II.
  • each elastic cylinder is equipped with a biasing member 170.
  • the biasing members 170 are essentially formed of a bar 172 oriented parallel to the transverse weld plane S-S.
  • means are provided for adjusting the position of the biasing members 172 with respect to the rods 154, in a plane parallel to the transverse welding plane S-S.
  • these adjustment means can be the subject of numerous embodiments.
  • these means for adjusting the biasing members can be formed by an oblong opening formed in the bars 172, parallel to the transverse weld plane SS and adapted to receive complementary locking members on the associated piston rod 154.
  • the biasing members 170 placed near the edge of the film intended to constitute the bottom of a sachet are preferably equipped with pads 176 directed towards the plane transverse welding S, allowing relative sliding between said pad and the film making up the bag.
  • biasing members 170 placed opposite the edge of the film intended to constitute the mouth of a bag and therefore generally equipped with relief closure profiles (shown on the right in FIG. 1) are preferably fitted with projecting fingers 178 projecting towards the transverse weld plane S.
  • each of the assemblies 100 is adapted to serve as a support for the jaws of transerval welding and / or the cutting blades making it possible to separate a finished bag from the downstream film.
  • each assembly 100 is further provided means designed to guarantee a positioning of each assembly 100 strictly parallel to the transverse weld plane S, that is to say a translational movement of each assembly 100 in a strictly orthogonal direction. to this transverse weld plane S.
  • these holding means can be formed of complementary structures provided respectively on the two assemblies 100, for example a finger or a rod integral with one of the assemblies 100, oriented perpendicularly to the transverse weld plane S and engaged in a complementary bore formed in the other assembly 100.
  • the aforementioned holding means comprise stops 200 integral with the chassis of the machine, symmetrical with respect to the transverse weld plane S and preferably having lateral facets 202 parallel to this plane.
  • roller means on each biasing member 170, to facilitate movement of each biasing member on the associated stop 200 and parallel to the transverse weld plane S.
  • each biasing member 170 is preferably provided with a drawer 180 fitted with a roller 182.
  • the roller 182 protrudes relative to the drawer 180 in the direction of the transverse weld plane S to rest on a stop 200 when the assembly 100 is moved closer to this welding plane S.
  • the drawer 180 which carries the roller 182 is capable of elastic movement relative to the bar 172 associated in a direction orthogonal to the welding plane transverse S.
  • the drawer 180 is however returned to a rest position relative to the bar 172, by an elastic member not shown in the accompanying figures for simplify the illustration.
  • the operation of the unfolding device according to the present invention is essentially as follows.
  • the two assemblies 100 are moved closer to the transverse weld plane S.
  • the positioning of the assemblies 100 parallel to the transverse weld plane S is defined by the support of the rollers 182 on the stops 200.
  • the pads 176 contact the edge of the film corresponding to the bottom of the bags.
  • the fingers 178 contact the opposite edge of the film corresponding to the mouth fitted with the closure profiles.
  • the rods 154 are retracted in the body 152. This leads to a displacement of the biasing members 170, and consequently of the pads 176 and fingers 178 radially outward from the longitudinal axis OO.
  • the two diametrically opposite edges of the tubular film, corresponding respectively to the bottom and to the mouth of the sachets are biased away with authorized relative movement between the film and the pads 176. This arrangement makes it possible to remove any fold possible on the film.
  • the assemblies 100 can be separated.
  • the pistons 154 and associated biasing members 170 then automatically return to their rest position for a new movement and biasing cycle.
  • the present invention offers many advantages over prior art unfolding systems.
  • the present invention makes it possible to completely release the central part of the tubular film and therefore authorizes the production of bags limited strictly to the useful height for packaging the product in question.
  • the present invention makes it possible to completely dispense with any clamp actuation system, in particular based on fluidic cylinders.
  • the present invention allows faster manufacturing sequences than the known prior machines.
EP96402537A 1995-11-27 1996-11-26 Vorrichtung zum Entfalten für Maschinen zum selbsttätigen Formen, Füllen und Verschliessen von Verpackungen aus flexiblen Folien Withdrawn EP0775633A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9514010 1995-11-27
FR9514010A FR2741592B1 (fr) 1995-11-27 1995-11-27 Systeme de deplissage pour machines de formation, remplissage et fermeture automatique d'emballages a base du film souple

Publications (1)

Publication Number Publication Date
EP0775633A1 true EP0775633A1 (de) 1997-05-28

Family

ID=9484909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402537A Withdrawn EP0775633A1 (de) 1995-11-27 1996-11-26 Vorrichtung zum Entfalten für Maschinen zum selbsttätigen Formen, Füllen und Verschliessen von Verpackungen aus flexiblen Folien

Country Status (4)

Country Link
US (1) US5857310A (de)
EP (1) EP0775633A1 (de)
CA (1) CA2190084C (de)
FR (1) FR2741592B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7163133B2 (en) 2004-03-05 2007-01-16 S.C. Johnson Home Storage, Inc. Apparatus for and method of moving a slider along mating zipper elements
US7244222B2 (en) 2004-03-05 2007-07-17 S.C. Johnson Home Storage, Inc. Apparatus for and method of positioning a slider on mating zipper elements

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534159A (en) * 1982-11-12 1985-08-13 General Packaging Equipment Company Apparatus for forming, filling and sealing bags with fluid contents
US4694975A (en) 1984-05-10 1987-09-22 Mckesson Corporation Method and apparatus for storing and dispensing fluids containered under gas pressure
US4829745A (en) 1987-12-07 1989-05-16 The Dow Chemical Company Tube spreader for removing wrinkles in tube stock
EP0319995A2 (de) 1987-12-10 1989-06-14 Zip-Pak Incorporated Mit Reissverschluss versehene Folienführung sowie Spannapparat zur Bildung von Verpackungen
US4876842A (en) 1988-01-15 1989-10-31 Minigrip, Inc. Method of and apparatus for packaging product masses in a form, fill and seal machine
FR2638419A1 (fr) 1988-10-28 1990-05-04 Flexico France Sarl Machine de formage/remplissage/scellement pour la fabrication de sacs refermables, et procede de fabrication associe
US5046300A (en) 1990-10-19 1991-09-10 Reynolds Consumer Products, Inc. Method and apparatus for forming a reclosable package
US5127208A (en) 1990-10-19 1992-07-07 Reynolds Consumer Products Inc. Method and apparatus for forming a reclosable package
FR2716260A1 (fr) 1994-02-16 1995-08-18 Sochata Energy 1 Soc Procédé et dispositif de contrôle de nids d'abeilles à l'aide de fibres optiques.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952960A (en) * 1956-03-29 1960-09-20 Jl Ferguson Co Packaging machine
US3501893A (en) * 1968-01-08 1970-03-24 Axel F Peterson Bag opening machine
BE791600A (fr) * 1971-11-17 1973-03-16 Wang Herman Appareil de distribution et de maintien de sacs et sacs utilises
DE3118866C2 (de) * 1981-05-13 1984-04-12 Haver & Boecker, 4740 Oelde "Maschine zum Füllen und Verschließen von Säcken aus Kunststoff, vorzugsweise von Seitenfaltensäcken oder Flachsäcken"
CH661020A5 (it) * 1984-09-24 1987-06-30 Water Line Sa Macchina per il riempimento di sacchetti con un liquido e la loro termosaldatura.
US4874354A (en) * 1987-04-29 1989-10-17 K & R Equipment, Incorporated Method and apparatus for automatically opening bags
US5279094A (en) * 1991-06-04 1994-01-18 Bemis Company, Inc. Apparatus for closing bags
US5323591A (en) * 1991-09-16 1994-06-28 Ag-Bag Corporation Bale sheathing method and apparatus
FR2716160B1 (fr) * 1994-02-14 1996-05-10 Flexico France Sarl Machine d'emballage utilisant un film souple et emballage obtenu.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534159A (en) * 1982-11-12 1985-08-13 General Packaging Equipment Company Apparatus for forming, filling and sealing bags with fluid contents
US4694975A (en) 1984-05-10 1987-09-22 Mckesson Corporation Method and apparatus for storing and dispensing fluids containered under gas pressure
US4829745A (en) 1987-12-07 1989-05-16 The Dow Chemical Company Tube spreader for removing wrinkles in tube stock
EP0319995A2 (de) 1987-12-10 1989-06-14 Zip-Pak Incorporated Mit Reissverschluss versehene Folienführung sowie Spannapparat zur Bildung von Verpackungen
US4876842A (en) 1988-01-15 1989-10-31 Minigrip, Inc. Method of and apparatus for packaging product masses in a form, fill and seal machine
FR2638419A1 (fr) 1988-10-28 1990-05-04 Flexico France Sarl Machine de formage/remplissage/scellement pour la fabrication de sacs refermables, et procede de fabrication associe
US5046300A (en) 1990-10-19 1991-09-10 Reynolds Consumer Products, Inc. Method and apparatus for forming a reclosable package
US5127208A (en) 1990-10-19 1992-07-07 Reynolds Consumer Products Inc. Method and apparatus for forming a reclosable package
FR2716260A1 (fr) 1994-02-16 1995-08-18 Sochata Energy 1 Soc Procédé et dispositif de contrôle de nids d'abeilles à l'aide de fibres optiques.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7163133B2 (en) 2004-03-05 2007-01-16 S.C. Johnson Home Storage, Inc. Apparatus for and method of moving a slider along mating zipper elements
US7244222B2 (en) 2004-03-05 2007-07-17 S.C. Johnson Home Storage, Inc. Apparatus for and method of positioning a slider on mating zipper elements

Also Published As

Publication number Publication date
CA2190084C (en) 2001-02-13
FR2741592B1 (fr) 1998-02-13
FR2741592A1 (fr) 1997-05-30
CA2190084A1 (en) 1997-05-28
US5857310A (en) 1999-01-12

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