EP0303654B1 - Verfahren zur bildung des bodens eines beutels aus flexiblem thermoplastischem material und vorrichtung zur durchführung des verfahrens - Google Patents

Verfahren zur bildung des bodens eines beutels aus flexiblem thermoplastischem material und vorrichtung zur durchführung des verfahrens Download PDF

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Publication number
EP0303654B1
EP0303654B1 EP88901850A EP88901850A EP0303654B1 EP 0303654 B1 EP0303654 B1 EP 0303654B1 EP 88901850 A EP88901850 A EP 88901850A EP 88901850 A EP88901850 A EP 88901850A EP 0303654 B1 EP0303654 B1 EP 0303654B1
Authority
EP
European Patent Office
Prior art keywords
bag
cushion
jaw
cheek
corners
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
EP88901850A
Other languages
English (en)
French (fr)
Other versions
EP0303654A1 (de
Inventor
Michel Cazes
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.)
Societe Generale des Eaux Minerales de Vittel SA
Original Assignee
Societe Generale des Eaux Minerales de Vittel SA
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
Priority claimed from FR8702436A external-priority patent/FR2611182B2/fr
Application filed by Societe Generale des Eaux Minerales de Vittel SA filed Critical Societe Generale des Eaux Minerales de Vittel SA
Priority to AT88901850T priority Critical patent/ATE69776T1/de
Publication of EP0303654A1 publication Critical patent/EP0303654A1/de
Application granted granted Critical
Publication of EP0303654B1 publication Critical patent/EP0303654B1/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
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/15—Combined or convertible surface bonding means and/or assembly means

Definitions

  • the present invention relates to a device for forming the bottom of a flexible plastic bag from a plastic cushion filled with liquid and for giving it stability, comprising a support beam of width less than the width of the cushion and on which it is arranged so that the two lower corners of the cushion protrude relative to the beam while tending downward, with a clamp on each side of the beam of the jaw the pressure exerted expels the liquid contained in the two aforementioned corners, then welding along two lines which will give stability to the bag, thus determining two ears corresponding to the corners.
  • the filled cushion is placed on a support beam with a width less than the width of the cushion so that the two lower corners of the cushion protrude relative to the beam, tending downwards, then applied on each side. of the beam a clamp whose gripping force exerted drives the liquid contained in the two aforementioned corners, with subsequent welding along two lines which will give stability to the bag, thus determining two ears corresponding to the corners.
  • document FR-A-1329553 describes a device for forming and closing a package in which a roller cooperates with a counter-bearing surface, said roller being articulated on a clamp so that when the advancement of the latter towards the place to be welded the point of contact of the roller on the bag moves gradually, so as to also gradually expel the liquid towards the inside of the bag.
  • the kinematics are however complex and cannot be transposed to specific problem to be solved, that is to say the elimination of the liquid in the horns of a flexible cushion disposed on a support beam, the lower corners of the cushion projecting relative to the beam while tending downward.
  • the object of the present invention is to remedy these drawbacks of the devices of the prior art.
  • the jaws each comprise a concave flange which cooperates with a flat counter surface or itself consisting of an identical flange, said concave flanges being articulated in rotation on each jaw so that as it advances towards the corner to be welded the point of contact of the flange on the corner of the sachet gradually moves upward, so as to gradually expel the liquid contained in said upward corner, that is to say inside the bag, each clamp consisting of a pair of jaws movable in plane translation relative to each other, and each flange being biased in pressure tending to keep them projecting by an elastic means.
  • the device consists for example of a pair of jaws (100, 101) movable in translation in a horizontal plane with respect to each other, for example under the action of jacks such as (102).
  • welding means (103, 104) in themselves known and which will not be described in more detail.
  • each jaw On the underside of each jaw is attached a flange (105,106) articulated in rotation thereon along an axis (107,108).
  • the flanges are stressed under pressure tending to keep them projecting, in the direction of one another, by an elastic means such as spring (109) or leaf spring (110).
  • a corner of the bag is disposed between the two flanges and, respectively, the jaws. It is at this stage filled with liquid.
  • the two jaws are brought closer to one another, which then come into contact through the lower ends (111, 112) of their respective flanges.
  • the point of contact between the flanges rises upwards, thus expelling the liquid from the corner which is inserted therein.
  • one of the jaws may comprise only a flat wing, perpendicular to the horizontal plane of the jaws, the other jaw comprising a flange as described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Making Paper Articles (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Bag Frames (AREA)
  • Package Closures (AREA)

Claims (1)

1.Vorrichtung zur Herstellung eines Bodens eines Beutels aus weichem Kunststoffmaterial aus einem mit Flüssigkeit gefüllen Kissen aus Kunststoffmaterial und mit einem Träger einer kleineren Breite als die Breite des Kissens zur Versteifung, auf dem dieses ein einer Weise angeordnet ist, daß die beiden unteren Ecken des Kissens sich über den Träger nach unten erstrecken, wobei auf jeder Seite des Trägers der Klammer (100, 101) eine Klemme angeordnet ist, deren Druckwirkung die in den besagten zwei Ecken befindliche Flüssigkeit verdrängt, wobei anschließend entlang von zwei Linien geschweißt wird, die dem Beutel Stabilität verleihen, wobei sich dadurch zwei den Ecken entsprechende Ohren bilden, dadurch gekennzeichnet, daß die Klammern jeweils eine konkave Andruckfläche (105, 106) aufweissen, die mit einer ebenen Gegendruckoberfläche zusammenwirkt oder selbst aus einer identischen Andruckfläche besteht, daß die konkaven Flächen in einer Rotationsbewegung auf jeder Klemme verschwenkbar sind, so daß bei einem Vortrieb von dieser zu der zu schweißenden Ecke hin sich nach und nach der Kontakpunkt der Andruckfläche auf der Ecke des Klissens nach oben verschiebt, so daß die in der besagten Ecke enthaltene Flüssigkeit immer weiter nach oben verdrängt wird, d.h. in das Innere des Beutels, daß jede Klemme aus einem Paar von in ebener Translationsbewegung zueinander beweglichen Klammern (100, 101) besteht und daß jede Andruckfläche in Druckwirkung durch ein elastisches Mittel (109, 110) im Überhang gehalten wird.
EP88901850A 1987-02-19 1988-02-09 Verfahren zur bildung des bodens eines beutels aus flexiblem thermoplastischem material und vorrichtung zur durchführung des verfahrens Expired - Lifetime EP0303654B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88901850T ATE69776T1 (de) 1987-02-19 1988-02-09 Verfahren zur bildung des bodens eines beutels aus flexiblem thermoplastischem material und vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702436A FR2611182B2 (fr) 1983-11-15 1987-02-19 Procede pour former le fond d'un sachet en matiere synthetique souple et dispositif pour sa mise en oeuvre
FR8702436 1987-02-19

Publications (2)

Publication Number Publication Date
EP0303654A1 EP0303654A1 (de) 1989-02-22
EP0303654B1 true EP0303654B1 (de) 1991-11-27

Family

ID=9348256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88901850A Expired - Lifetime EP0303654B1 (de) 1987-02-19 1988-02-09 Verfahren zur bildung des bodens eines beutels aus flexiblem thermoplastischem material und vorrichtung zur durchführung des verfahrens

Country Status (7)

Country Link
US (1) US5047105A (de)
EP (1) EP0303654B1 (de)
JP (1) JPH01502259A (de)
AT (1) ATE69776T1 (de)
CA (1) CA1274223A (de)
DE (1) DE3866467D1 (de)
WO (1) WO1988006125A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1329553A (fr) * 1956-11-27 1963-06-14 Machine destinée à fermer hermétiquement des emballages remplis de matière liquide ou pâteuse, formés par des tronçons successifs d'un corps tubulaire en matière thermoplastique
US4369611A (en) * 1980-07-07 1983-01-25 Rexham Corporation Top heat sealing unit for pouches
FR2554783B1 (fr) * 1983-11-15 1986-08-22 Vittel Eaux Min Procede pour former le fond d'u

Also Published As

Publication number Publication date
US5047105A (en) 1991-09-10
DE3866467D1 (de) 1992-01-09
JPH01502259A (ja) 1989-08-10
WO1988006125A1 (fr) 1988-08-25
CA1274223A (fr) 1990-09-18
ATE69776T1 (de) 1991-12-15
EP0303654A1 (de) 1989-02-22

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