EP0142456B1 - Verfahren zum Formen des Bodens eines Sacks aus flexiblem Kunstoffmaterial aus einem mit Flüssigkeit gefüllten Kissen - Google Patents

Verfahren zum Formen des Bodens eines Sacks aus flexiblem Kunstoffmaterial aus einem mit Flüssigkeit gefüllten Kissen Download PDF

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Publication number
EP0142456B1
EP0142456B1 EP84440049A EP84440049A EP0142456B1 EP 0142456 B1 EP0142456 B1 EP 0142456B1 EP 84440049 A EP84440049 A EP 84440049A EP 84440049 A EP84440049 A EP 84440049A EP 0142456 B1 EP0142456 B1 EP 0142456B1
Authority
EP
European Patent Office
Prior art keywords
cushion
welding
gripper
process according
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
Application number
EP84440049A
Other languages
English (en)
French (fr)
Other versions
EP0142456A2 (de
EP0142456A3 (en
Inventor
Raoul Gautier
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
Application filed by Societe Generale des Eaux Minerales de Vittel SA filed Critical Societe Generale des Eaux Minerales de Vittel SA
Priority to AT84440049T priority Critical patent/ATE27435T1/de
Publication of EP0142456A2 publication Critical patent/EP0142456A2/de
Publication of EP0142456A3 publication Critical patent/EP0142456A3/fr
Application granted granted Critical
Publication of EP0142456B1 publication Critical patent/EP0142456B1/de
Expired 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

Definitions

  • the subject of the present invention is a method for forming the bottom of a flexible plastic bag from a plastic cushion filled with liquid and for giving it stability, process in which the filled cushion is placed on a support beam of width less than the width of the cushion so that at least one of the lower corners of the cushion projects relative to the beam while tending downward (known from patent FR-A-1332651).
  • the invention also relates to the welding and cutting unit for the implementation of the method.
  • one of the problems posed is that of the stability of the bag, obtained by a specific conformation of the bottom of the bag to allow it to be placed on a flat surface.
  • the bottom of the sachet is shaped into a W by folding the film of synthetic material before filling.
  • the two proposed embodiments are necessarily made from empty bags, at a given stage of their conformation.
  • patent DE-1 270 477 describes a device for the welding and cutting of upper folds of paper bags having a heat-sealable inner coating.
  • the folds are formed independently of the welding and cutting machine.
  • this result is obtained with a process for forming the bottom of a flexible plastic bag from a plastic cushion filled with liquid and for giving it stability, a process in which there is available the cushion filled on a support beam with a width less than the width of the cushion so that at least one of the lower corners of the cushion overflows with respect to the beam while tending downward, characterized in that one applies on each side of the beam, a clamp whose exerted pressure force drives out the liquid contained in the above-mentioned corner (s), which is welded along at least one line which will give stability to the bag, thus determining at least one corresponding ear each at a corner.
  • the cushion will be placed on the support beam in such a way that two lower corners project beyond the beam.
  • the welding will be carried out continuously.
  • the support beam is constituted by a belt acting as a conveyor belt.
  • the welding is carried out by heating tapes moving at the same speed as the belt.
  • the problem posed consists, in the case of vertical routing, in giving stability and shape to the bottom of a cushion (1) filled with liquid (2).
  • the cushion is obtained from a film wound on a mandrel, and has three weld lines (3, 4, 5). This in itself is well known to those skilled in the art.
  • the cushion (1) On a support beam (6) of any section, for example rectangular or even trapezoidal, the small base being directed upwards.
  • the length of this beam should be simply sufficient to receive a sachet.
  • the beam can be longer and serve as a guide and support for the rosary bags during part of their journey.
  • this beam will be placed, for example just after the post for cutting the cushions into individual elements from the continuous rod, so as to drop them from a height of a few centimeters on the support beam to mark the corner edges.
  • This station can also be provided in operation during filling, by raising the beam towards the cushion.
  • the width of the beam is chosen so that, when centered there, the filled cushion has two corners (7, 8) projecting relative to the beam and tending downward, by simple gravity. This is shown diagrammatically in Figure 1.
  • the cushion therefore presents itself with a base having two linear edges connected by two indefinite contours taking a curved configuration when the cushion is placed vertically on a flat surface, the two edges extending by two ears corresponding to the corners (7, 8).
  • these ears will be cut by blades integrated into the welding tongs and sectioning said ears, just after the welding operation or even during filling.
  • FIG. 3 shows a variant in which the welding head (15) and the blade (16) are integrated into the beam (6 ').
  • the clamp (9 ') therefore remains, but its only role is to apply the wedge against the support.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Bag Frames (AREA)

Claims (8)

1. Verfahren zum Formen des Bodens eines Beutels aus schmiegsamem Kunststoff ausgehend von einem mit Flüssig keit gefüllten Kissen (1) aus Kunststoff, wobei zur Erzielung der Stabilität das gefüllte Kissen (1) auf einen Trägerbalken (6) mit einer Breite, die kleiner als die Breite des Kissens ist, so aufgesetzt wird, daß wenigstens eine der -unteren Ecken (7, 8) des Kissens über den Balken übersteht und nach unten gerichtet ist, dadurch gekennzeichnet, daß auf jeder Seite des Balkens eine Klammer (9, 10) einwirkt, deren ausgeübter Druck die in der Ecke oder den vorerwähnten Ecken enthaltene Flüssigkeit heraustreibt, und daß wenigstens entlang einer Linie geschweißt wird, was dem Beutel eine Stabilität verleiht und wobei auf diese Weise wenigstens ein Ohr bestimmt wird, das jeweils einer Ecke (7, 8) zugeordnet ist.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die den Ecken (7, 8) zugeordneten Ohren durch eine in der Schweißklammer integrierte Klinge geschnitten werden.
3. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das gefüllte Kissen auf den Balken (6) fällt.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Trägerbalken (6) während des Füllens gegen das Kissen aufsteigt, um die Ohren (7, 8) zu formen, und daß das Schneiden und Schweißen derselben während des Füllens durchgeführt werden.
5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Trägerbalken in Gestalt eines Gurtes realisiert ist, der als Transportband wirksam ist, wobei die Schweißung durch Heizbänder durchgeführt wird, die sich mit der gleichen Geschwindigkeit wie der Gurt bewegen.
6. Schweiß- und Schneidevorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie verfügt über :
eine Klammer (9,10,9') mit einer Andruckfläche (11) zum Andrücken der Ecke des Kissens (1) gegen einen Balken (6), ein Schweißorgan (12, 15) und eine Schneidklinge (13).
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Schweißkopf (15) und die Klinge (16) in den Balken (6) integriert sind.
8. Vorrichtung nach einem der Ansprüche 6 und 7, dadurch gekennzeichnet, daß die Balken (6, 6') oder die Klammer (9, 10, 9') eine Andruckfläche (14) aus einem Material aufweisen, das weniger hart als das des Balkens oder der Klammer ist.
EP84440049A 1983-11-15 1984-11-13 Verfahren zum Formen des Bodens eines Sacks aus flexiblem Kunstoffmaterial aus einem mit Flüssigkeit gefüllten Kissen Expired EP0142456B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84440049T ATE27435T1 (de) 1983-11-15 1984-11-13 Verfahren zum formen des bodens eines sacks aus flexiblem kunstoffmaterial aus einem mit fluessigkeit gefuellten kissen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8318255A FR2554783B1 (fr) 1983-11-15 1983-11-15 Procede pour former le fond d'u
FR8318255 1983-11-15

Publications (3)

Publication Number Publication Date
EP0142456A2 EP0142456A2 (de) 1985-05-22
EP0142456A3 EP0142456A3 (en) 1985-06-26
EP0142456B1 true EP0142456B1 (de) 1987-05-27

Family

ID=9294202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84440049A Expired EP0142456B1 (de) 1983-11-15 1984-11-13 Verfahren zum Formen des Bodens eines Sacks aus flexiblem Kunstoffmaterial aus einem mit Flüssigkeit gefüllten Kissen

Country Status (5)

Country Link
EP (1) EP0142456B1 (de)
JP (1) JPH06538B2 (de)
AT (1) ATE27435T1 (de)
DE (1) DE3463919D1 (de)
FR (1) FR2554783B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611182B2 (fr) * 1983-11-15 1989-08-18 Vittel Eaux Min Procede pour former le fond d'un sachet en matiere synthetique souple et dispositif pour sa mise en oeuvre
NO165099C (no) * 1984-06-25 1991-01-02 Vittel Eaux Min Anordning for sveising og kutting av minst ett hjoerne av en pose av syntetisk materiale.
WO1988006125A1 (fr) * 1987-02-19 1988-08-25 Societe Generale Des Eaux Minerales De Vittel Procede pour former le fond d'un sachet en matiere synthetique souple et dispositif pour sa mise en oeuvre
FR2674825A1 (fr) * 1991-04-05 1992-10-09 Prepac Poche tenant debout realisee a partir d'un film souple et procede de realisation.
IT1305240B1 (it) * 1998-06-04 2001-04-19 Burgopack Stampa Trasformazione Imballaggi Spa Un procedimento per realizzare confezioni a tubo in materialeflessibile, una apparecchiatura per effettuare il procedimento ed una

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1259662A (fr) * 1960-05-30 1961-04-28 Habra Werk Ott Kg Procédé et dispositif pour la fermeture de sachets à fond bloc remplis
DE1270477B (de) * 1962-05-29 1968-06-12 Habra Werk Ott Kg Vorrichtung zum Fertigstellen oder Ablegen gefuellter und verschlossener Klotzbodenbeutel
FR1332651A (fr) * 1962-06-05 1963-07-19 Remy & Cie E P Procédé et dispositif de fermeture et de mise en forme des emballages souples emplis de liquide

Also Published As

Publication number Publication date
EP0142456A2 (de) 1985-05-22
EP0142456A3 (en) 1985-06-26
ATE27435T1 (de) 1987-06-15
JPS6121326A (ja) 1986-01-30
FR2554783B1 (fr) 1986-08-22
DE3463919D1 (en) 1987-07-02
JPH06538B2 (ja) 1994-01-05
FR2554783A1 (fr) 1985-05-17

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