PT93833A - METHOD AND DEVICE FOR JOINING A PRESSURE AND / OR DISCHARGE MANIPULA ON A MACHINE OF SYNTHETIC MALEAVEL - Google Patents

Abstract

Process and device for applying a carrying and/or pouring handle to a pouch of flexible synthetic material and pouch thus obtained. The handle (14) is attached to the foil by welding and cutting before said foil is shaped. Application: liquid containers.

Description

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SOCIÉTÉ GÉNÉRALE DES EAUX MINERALES DE VITTEL

" PROCESS AND DEVICE FOR JUMPING A HOLDER AND / OR DISCHARGE HANDLE ON A MACHINERY OF SYNTHETIC SYNTHETIC MATERIAL " The present invention relates to a method of attaching a gripping and / or discharging handle to a pouch of malleable synthetic material. The invention also relates to a device for the application of this process, as well as the sachets thus obtained.

More general reference will be made to EP-0197875 and EP-0167469 in the name of the applicant, which describe the state of the art and the field covered, documents to which reference is expressly made.

These different patents disclose the conformation of sachets of malleable synthetic material for the packaging of liquids, in particular mineral water. Some complementary structures have already been proposed which permit joining of a gripping and discharging handle, for example by patent FR 2 468 066. Its industrial application, however, remains complex. The present invention seeks to remedy these various drawbacks of prior art processes and structures.

According to the invention, there is proposed a process for

A holding and / or unloading handle is placed on a pouch of malleable synthetic material, characterized in that it consists in joining said handle on the film, optionally with successive layers of a reinforcing overlay, prior to the forming of said film in filled bags of liquid.

Advantageously, the gripper and / or discharge handle will consist of a semi-rigid synthetic material wire or sheath.

Preferably, said handle will be together at a corner of the indexed scroll film.

According to the invention, there is also proposed a device for attaching a gripping and / or discharging handle on a bag of malleable synthetic material in which said handle is attached to the film, optionally with successive layers of a reinforcing overlay , prior to the forming of said film into liquid filled sachets, the gripping or discharging handle being comprised of a sheath or a sheath of semi-rigid synthetic material, and being together at a corner of the indexed scroll film, characterized in that it comprises : a semi-rigid synthetic wire or sheath feed cartridge, a system for unwinding and entrainment in a guide sheath of said wire or said sheath, - a guide and injection means of said sheath or said sheath having the desired length to conduct the free end to the level of the corner of the film, a welding-cutting assembly which allows cutting the length of desired wire or sheath determined by said guide means and welding it to the film. The invention will be better understood from the following description of an embodiment indicated by way of non-limiting example, with reference to the accompanying drawings, in which: Figure 1 is a side elevation diagram of a device according to the invention; with the invention for the application of the process according to the invention; figure 2 is a top plan view of the diagram of figure 1;

A film (1) with an over-film (2) applied thereto, as shown in figure 2, is shown in figure 1.

This film is under tension in the frame of a film-forming machine on soft, liquid-filled cushions of materials, as indicated above.

To attach a gripping and / or unloading means according to the invention, there is provided: - a wire feed or sheath cartridge (3) having a drag system (4) of known type. _4_

- a guiding system per cap (5) and guide sheath (6) leading the wire or the sheath to a set of. (7) and guide and injection means (8) of said wire or said sheath of the desired length. The guide and injection means 8 consists of two complementary dies 9,10 movable relative to one another perpendicular to the plane of the film 1 to loosen the film or the sheath when it has been welded onto the film.

The dies internally determine a routing (11) into which the yarn or sheath enters to reach the film in place and the desired length. The proximal end (12) of the die will be expanded to facilitate the introduction of the yarn or the sheath .

When the wire or the sheath is injected into position by the drag system 4, it is applied by welding-cut on the corner of the film 1 by the welding-cutting means 7 which is constituted by a movable jaw 13 ) which cooperates with a counter-support clamp (14) of the die (9). The device operates obviously in a sequential and indexed manner, in operation preferably horizontally, the various securing means and automatisms being within the reach of those skilled in the art. The film with its handle (15) then continues its path to an unrepresented former.

Claims (7)

i) -5- A method of attaching a gripping and / or discharging handle onto a pouch of malleable synthetic material, characterized in that it consists of joining said handle on the film, optionally equipped with successive layers of an overshot film prior to forming the said film into liquid filled sachets. 2. A method according to claim 1, characterized in that the gripper and / or discharge handle comprises a wire or a sheath of semi-rigid synthetic material. 3. A method according to any one of claims 1 and 2, characterized in that said handle is joined together on a corner of the indexed scroll film. 4. A device for applying the method according to any one of claims 1 to 3 for attaching a pre-and / or discharge handle to a bag of malleable synthetic material in which said handle is attached to the film, which optionally has successive layers of a reinforcing overlay before the formation of said film in liquid filled sachets, the gripping and / or discharge handle being comprised of a semi-rigid synthetic yarn or sheath and this joint being on a corner of the indexed scroll film, characterized in that it comprises: - a semi-rigid synthetic material or wire feeder cartridge (3), - an unwinding and dragging system (4) in a guide sheath of said wire or of said sheath, - guide and injection means (8) of said sheath or said sheath of the desired length to drive its free end to the level of the comer the film, a welding-cutting assembly which allows cutting the length of desired wire or sheath determined by said guide means and welding it to the film. A device according to claim 4, characterized in that the guide and injection means (8) consist of two dies - 7 - (9, 10) movable relative to one another perpendicularly to the plane of the film (1) to release the wire or the sheath when it has been welded onto the film. A device according to claim 5, characterized in that the dies internally determine a routing (11) in which between the wire or the sheath, to reach the film in the location and of the desired length, the proximal end (12) of the expanded die to facilitate insertion of the yarn or the sheath. 7. Device according to claim 6, characterized in that the wire or the sheath is injected into position by the entrainment system (4), is welded-cut together on the corner of the film (1) by the welding-cutting means (7) which is constituted by a movable jaw (13) cooperating with a counter-support clamp (14) of the die (9). Lisbon, April 20, 1990