EP0633187A1 - Automatische Verpackungsmaschine mit Verwendung einer Folie mit Verschlussstreifen, sowie Verpackung - Google Patents

Automatische Verpackungsmaschine mit Verwendung einer Folie mit Verschlussstreifen, sowie Verpackung Download PDF

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Publication number
EP0633187A1
EP0633187A1 EP94401557A EP94401557A EP0633187A1 EP 0633187 A1 EP0633187 A1 EP 0633187A1 EP 94401557 A EP94401557 A EP 94401557A EP 94401557 A EP94401557 A EP 94401557A EP 0633187 A1 EP0633187 A1 EP 0633187A1
Authority
EP
European Patent Office
Prior art keywords
film
profiles
machine according
welding
tube
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.)
Granted
Application number
EP94401557A
Other languages
English (en)
French (fr)
Other versions
EP0633187B1 (de
Inventor
Henri Georges 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 EP0633187A1 publication Critical patent/EP0633187A1/de
Application granted granted Critical
Publication of EP0633187B1 publication Critical patent/EP0633187B1/de
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
    • 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
    • B65B9/213—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 the web having intermittent motion

Definitions

  • the present invention relates to the field of machines for automatically forming, filling and closing packaging based on films of thermoplastic material comprising profiles, in particular complementary male and female zipper profiles.
  • These machines generally include a forming neck which receives the film in the planar state from an unwinder and provides the film-shaped tube at the outlet, a filling chute which opens into this forming neck and consequently into said tube, 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 by the filler neck, then a second transverse weld when the product has been introduced into the tube to close a package around it.
  • the means for fixing the profiles to the film are generally provided downstream of the forming neck.
  • the present invention now aims to improve existing automatic machines.
  • the film is pre-equipped, at the entrance to the machine, with profiles placed at a distance from its lateral edges.
  • the means for guiding the profiles comprise on the one hand means for external guiding of the film equipped with the profiles, on the other hand a spacer placed inside the tube formed by the film after the forming neck.
  • the machine also comprises means for guiding the profiles at the entrance to the forming neck.
  • the present invention also covers the packaging obtained with such a machine.
  • the aim will essentially be to produce packaging using films of thermoplastic material provided with complementary male and female zipper profiles.
  • the present invention is not limited to the use of this particular type of profile. It extends to all types of profiles capable of equipping a packaging film, such as for example cords integrated into the film to facilitate the opening thereof, decorative borders, for example colored borders, or even graduated borders for identifying the volume of product contained in the packaging.
  • means 900 for guiding the profiles 12 shown in FIG. 2 are also provided upstream of the forming neck 200.
  • the supply means 100 can be formed of any suitable known structure capable of receiving a roll of film of thermoplastic material 10 provided with complementary male and female zipper profiles 12 and supply this film to the forming neck 200 with a tension that is substantially constant. At the entrance to the forming neck 200, the complementary male and female closure profiles are engaged one inside the other.
  • the profiles 12 are placed at a distance from the longitudinal edges 14, 15 of the film 10, parallel to these.
  • the film 10 provided with profiles 12 can be obtained using any technique known to those skilled in the art. This film 10, as well as the sections 12 and their process for obtaining will not be described in more detail below.
  • the film 10 is generally plane and arranged in a horizontal plane.
  • the forming neck 200 is preferably centered on a vertical axis 202. It has the function of transforming into a tubular blank, at its lower outlet 206, the flat film 10 which it receives at inlet 204. For this the forming neck 200 progressively brings the longitudinal edges 14 and 15 of the film closer together. These longitudinal edges 14 and 15 are placed side by side at the outlet 206 from the forming neck 200, as can be seen in FIG. 1. Thus at the outlet 206 from the forming neck 200 , the film 10 is in the form of a tubular blank centered on a vertical axis 202 and with longitudinal edges 14, 15 close together. This tubular blank moves down.
  • the longitudinal edges 14 and 15 are not glued against the tubular blank, but are detached from the latter.
  • the longitudinal edges 14 and 15 of the film are oriented in a vertical radial plane relative to the axis 202, at the outlet of the forming neck 200.
  • the forming neck 200 can be formed from any structure known to those skilled in the art, as described for example in the documents cited above.
  • the filling chute 300 is centered on the same vertical axis 202. It is superimposed on the forming neck 200 and opens into this forming neck 200 and therefore into the tubular blank formed at the outlet thereof.
  • the chute 300 is used to introduce the product to be packaged into the packages formed from the film 10.
  • the longitudinal welding means 600 are placed under the forming neck 200, facing the close longitudinal edges 14, 15 of the film 10. Their function is to heat weld the longitudinal edges 14, 15 of the film to close the tube longitudinally.
  • the longitudinal welding means 600 can be formed of any suitable structure known to those skilled in the art, such as for example two welding jaws 610, 620 elongated vertically, respectively on either side of the longitudinal edges 14 and 15 and driven cyclically in approach to allow the welding of the longitudinal edges 14 and 15 and in separation to allow the advancement of the film 10 under the effect of the drive means 800, as shown diagrammatically in FIG. 1, or also of a vertical welding jaw 610 cyclically displaced horizontally against a support tube 612 placed inside the film as seen in FIG. 3. This support tube 612 extends downward the filling chute 300.
  • the transverse welding means 700 are in turn placed under the longitudinal welding means 600.
  • additional shaping means such as a horizontal slot, can be placed between the longitudinal welding means 600 and the transverse welding means 700 to flatten the tube formed by the film 10 before the latter reaches the transverse welding means 700.
  • the flattening of the tubular film is preferably carried out so that the closure profiles 12 originally placed at a distance from the longitudinal free edges 14 and 15 of the film 10 are found at a vertical edge of the flattened film.
  • the longitudinal weld 602 produced previously is then placed over the width of the flattened film as seen on the bottom of FIG. 1.
  • the transverse welding means 700 are designed to sequentially generate a first transverse weld 702 before a product is introduced into the tube by the filler neck 300, then a second transverse weld 704 when the product has been introduced into the tube, to close a package around it, as seen at the bottom of Figure 1.
  • said second transverse weld 704 for a given package serves as the first weld 702 for the following packaging and so on, the packages then being separated at the level of these transverse welds as seen in FIG. 1.
  • the transverse welding means 700 can be formed of any suitable structure known to those skilled in the art, such as for example two welding jaws 710, 720 stretched horizontally, respectively on either side of the flattened film and driven cyclically in approach to allow the production of welds 702 and 704 and in distance to allow the film 10 to advance under the effect of the drive means 800.
  • the packaging separation means can be formed by a guillotine integrated into these welding jaws 710 and 720 or by a guillotine placed downstream of these.
  • the drive means 800 can be formed by any suitable means known to those skilled in the art, such as for example belts or the like. For this reason these 800 training means have not been shown in Figure 1 to simplify the illustration.
  • the means 400 for pre-welding the profiles 12 have the function of locally crushing these profiles 12 at the level of future transverse welds 702 and 704, before the film arrives opposite the transverse welding means 700. This crushing by pre-welding profiles 12 is necessary to obtain correct transverse welds 702 and 704 over the entire width of the tubular film, if one wishes a perfect seal of the packages.
  • these pre-welding means 400 are placed at the height of the longitudinal welding means 600.
  • the pre-welding means 400 can be formed of any suitable structure known to those skilled in the art, such as for example two welding jaws 410, 420 respectively disposed on either side of the region of the film 10 equipped with profiles 12 and cyclically driven in approach to allow the pre-weld and away to allow the advancement of the film 10 under the effect of the drive means 800.
  • the pre-welding means 400 are therefore angularly offset relative to the longitudinal welding means 600.
  • the pitch of the pre-welds 402 corresponds to the length of the packages.
  • the machine comprises means 500 for guiding the closure sections 12, located upstream from the pre-welding means 400.
  • the means 500 for guiding the profiles 12 comprise on the one hand means 510 for external guide of the film 10 fitted with profiles 12, on the other hand a spacer 520 placed inside the tube formed by the film 10 at the outlet of the forming neck 200.
  • the external guide means 510 comprise a plate 512 and a rod 514.
  • the plate 512 is arranged vertically. It laterally supports the film 10 at the level of the profiles 12. More specifically, the plate 512 avoids the offset of the film 10 and of the profiles 12 clockwise according to the representation in FIG. 3.
  • the rod 514 comprises two wings 515 and 516 folded into an "L" at 90 °.
  • the first wing 515 generally horizontally is fixed by any appropriate means to the plate 512. This wing 515 radially outwardly limits the loop of the film 10 provided with the profiles 12 formed projecting from the tubular blank.
  • the second wing 516 extends in a vertical plane parallel to the plate 512, in proximity to said tubular blank. It supports the film 10 laterally on the other side at the level of the profiles 12. More precisely, the rod 514 avoids the offset of the film 10 and the profiles 12 anticlockwise as shown in FIG. 3.
  • the spacer 520 placed inside the tube formed by the film 10, at the outlet of the forming neck 200, consists of a vertical blade fixed on the aforementioned support tube 612. As can be seen in FIG. 3 appended, the spacer 520 makes it possible to maintain the profiles 12 detached from the internal support tube 612. Typically, but not limited to, the radial extension of the spacer 520 projecting from the outer periphery of the tube support 612 is of the order of 5 mm.
  • the retractor 520 is fixed in a groove 614 formed in the support tube 612 as seen in Figures 3, 7 and 8. More specifically still the spacer 520 is preferably fixed in an adjustable manner vertically against the bottom of the groove 614, for example at the using screws or any equivalent means, to allow the spacer 520 to be positioned in the appropriate place, which is a function of the position of the pre-weld, itself a function of the length of the finished package.
  • the guide means 500 and the pre-sealing means 400 are mounted on a common support assembly capable of rotation about a vertical axis to facilitate access to these means 400, 500, for their maintenance, control, cleaning and adjustment.
  • the machine according to the present invention allows a regular and precise covering of the longitudinal edges 14 and 15 of the film capable of providing a longitudinal weld 602, regular, reliable, waterproof and aesthetic.
  • spacer 520 makes it possible to guarantee precise positioning of the profiles 12 inside the jaws. of pre-welding 410 and 420 suitable for allowing correct crushing of the profiles 12 in order to subsequently obtain a satisfactory and tight transverse weld at the level of the means 700.
  • the machine also preferably includes means 900 for guiding the profiles 12 at the entry of the forming neck 200.
  • the guide means 900 comprise an arm 910 pivotally mounted about a generally horizontal axis 912, parallel to a tangent to the forming neck 200 at the level of the profiles 12.
  • This arm 910 carries two rollers 920 and 922 mounted for rotation on the arm 910 about an axis 921 parallel to the axis 912.
  • the rollers 920 and 922 are adapted to rest on the film 10 which passes over the forming neck 200 , respectively on either side of the sections 12.
  • the rollers 920 and 922 are separated from each other by an intermediate day 924 adapted to the width of the sections 12.
  • the two rollers 920 and 922 can be produced in the form of a unitary cylinder provided with an annular groove 924 at mid-width.
  • Such guide means 900 make it possible to correctly position the film 10 at the entrance to the neck 200 and thus to create a cylinder whose closure profiles 12 are in the appropriate place.
  • the machine according to the present invention has many advantages over known prior machines.
  • the guide means 500 and 900 in accordance with the present invention can be supplied in the form of a kit capable of equipping existing automatic packaging machines to improve their efficiency and the quality of the packaging obtained.
  • the present invention can be applied to a large number of profile geometries 12, including to profile structures 12 associated with a cord integrated into the film to facilitate the opening of the latter.
  • Such cords intended to allow, by traction, the cutting of the film 10 on the outside of the profiles 12, are well known to those skilled in the art. They are generally called “easy open” in Anglo-Saxon language.
  • such beads are placed at the top 17 of the loop 16 formed projecting from the support tube 612 by the spacer 520, that is to say in position adjacent to the wing 515 of the rod 514.
  • the film 10 is pre-equipped with profiles 12 at the entrance to the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Basic Packing Technique (AREA)
EP94401557A 1993-07-07 1994-07-06 Automatische Verpackungsmaschine mit Verwendung einer Folie mit Verschlussstreifen Expired - Lifetime EP0633187B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9308339A FR2707251B1 (fr) 1993-07-07 1993-07-07 Machine automatique d'emballage à l'aide de film à profilé et emballage obtenu.
FR9308339 1993-07-07

Publications (2)

Publication Number Publication Date
EP0633187A1 true EP0633187A1 (de) 1995-01-11
EP0633187B1 EP0633187B1 (de) 1997-09-03

Family

ID=9449010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401557A Expired - Lifetime EP0633187B1 (de) 1993-07-07 1994-07-06 Automatische Verpackungsmaschine mit Verwendung einer Folie mit Verschlussstreifen

Country Status (6)

Country Link
EP (1) EP0633187B1 (de)
AT (1) ATE157611T1 (de)
DE (1) DE69405324T2 (de)
DK (1) DK0633187T3 (de)
ES (1) ES2108394T3 (de)
FR (1) FR2707251B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516868A1 (de) * 1995-05-09 1996-11-14 Rovema Gmbh Schlauchbeutelmaschine
WO1997022525A1 (de) * 1995-12-15 1997-06-26 Tetra Laval Holdings & Finance S.A. Verfahren zur herstellung einer mit fliessfähigem material gefüllten beutelpackung
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589145A (en) * 1983-10-31 1986-05-13 Signode Corporation Packaging material and package
US5027584A (en) * 1990-01-12 1991-07-02 Illinois Tool Works, Inc. Method and apparatus for unfolding folded zipper film
US5046300A (en) * 1990-10-19 1991-09-10 Reynolds Consumer Products, Inc. Method and apparatus for forming a reclosable package
US5092831A (en) * 1990-10-16 1992-03-03 Hayssen Manufacturing Co. Method of and apparatus for opening a folded web of heat-sealable packaging material prior to formation of the web into sealed reclosable packages

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589145A (en) * 1983-10-31 1986-05-13 Signode Corporation Packaging material and package
US5027584A (en) * 1990-01-12 1991-07-02 Illinois Tool Works, Inc. Method and apparatus for unfolding folded zipper film
US5092831A (en) * 1990-10-16 1992-03-03 Hayssen Manufacturing Co. Method of and apparatus for opening a folded web of heat-sealable packaging material prior to formation of the web into sealed reclosable packages
US5046300A (en) * 1990-10-19 1991-09-10 Reynolds Consumer Products, Inc. Method and apparatus for forming a reclosable package

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516868A1 (de) * 1995-05-09 1996-11-14 Rovema Gmbh Schlauchbeutelmaschine
DE19516868C2 (de) * 1995-05-09 1998-07-02 Rovema Gmbh Schlauchbeutelmaschine
WO1997022525A1 (de) * 1995-12-15 1997-06-26 Tetra Laval Holdings & Finance S.A. Verfahren zur herstellung einer mit fliessfähigem material gefüllten beutelpackung
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
FR2707251A1 (fr) 1995-01-13
DE69405324T2 (de) 1998-03-05
FR2707251B1 (fr) 1995-09-29
DE69405324D1 (de) 1997-10-09
EP0633187B1 (de) 1997-09-03
ES2108394T3 (es) 1997-12-16
DK0633187T3 (da) 1998-04-27
ATE157611T1 (de) 1997-09-15

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