FR3022893B1 - PACKAGING WELDING DEVICE HAVING A TUBULAR STRUCTURE - Google Patents

PACKAGING WELDING DEVICE HAVING A TUBULAR STRUCTURE Download PDF

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Publication number
FR3022893B1
FR3022893B1 FR1555969A FR1555969A FR3022893B1 FR 3022893 B1 FR3022893 B1 FR 3022893B1 FR 1555969 A FR1555969 A FR 1555969A FR 1555969 A FR1555969 A FR 1555969A FR 3022893 B1 FR3022893 B1 FR 3022893B1
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FR
France
Prior art keywords
welding
tubular structure
curved
nest
packaging
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 - Fee Related
Application number
FR1555969A
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French (fr)
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FR3022893A1 (en
Inventor
Francisco Martinez Requena
Damaso Ojeda Martinez
Raul Martinez Garcia
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.)
Tecnicos Industriales Martinez 2007 SL
Original Assignee
Tecnicos Industriales Martinez 2007 SL
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Publication of FR3022893A1 publication Critical patent/FR3022893A1/en
Application granted granted Critical
Publication of FR3022893B1 publication Critical patent/FR3022893B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/10—Closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81262—Electrical and dielectric properties, e.g. electrical conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • 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
    • B65B51/24—Applying or generating heat or pressure or combinations thereof to produce bead seals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Avec ce dispositif, la soudure est réalisée au moyen d'un élément de soudage (1) et d'une pièce (2) formant nid. Selon l'invention, la pièce (2) formant nid comprend une alvéole (3) de structure incurvée comprenant des parois incurvées et un côté (4) ouvert qui donne accès à l'alvéole (3) de structure courbe dans laquelle est réalisée la soudure d'une extrémité de l'emballage (6) de structure tubulaire, cette extrémité venant en appui contre les parois incurvées de alvéole (3) de structure courbe, de telle sorte que ladite soudure (7) est réalisée selon une forme semi-circulaire.With this device, the welding is performed by means of a welding element (1) and a piece (2) forming a nest. According to the invention, the piece (2) forming a nest comprises a cell (3) of curved structure comprising curved walls and an open side (4) which gives access to the cell (3) of curved structure in which is made the one end of the tubular structure packaging (6) is welded, this end bearing against the curved walls of the cell (3) of curved structure, so that said weld (7) is made in a semi-circular form. circular.

Description

Objet de l'inventionObject of the invention

La présente invention concerne un dispositif de soudage d'emballages de structure tubulaire, de préférence par la technique des ultrasons, mais ce soudage peut être fait par la chaleur ou par induction magnétique. Le soudage se traduit par une soudure de forme semi-circulaire qui est encore plus petite et plus résistante que les soudures réalisée à ce jour. La soudure objet de l'invention est applicable à l'industrie de l'emballage de produits.The present invention relates to a device for welding packages of tubular structure, preferably by the ultrasound technique, but this welding can be done by heat or magnetic induction. Welding results in a semicircular weld that is even smaller and stronger than the welds made to date. The welding object of the invention is applicable to the product packaging industry.

Problème technique à résoudre et art antérieur à l'inventionTechnical problem to be solved and prior art to the invention

Les emballages de type à mailles sont obtenus à partir d'un matériau maillé continu, de telle sorte que l'emballage est réalisé en coupant le matériau maillé au niveau du contenu que l'emballage est destiné à contenir et en fermant l'emballage au moyen d'une soudure par ultrasons du matériau maillé ainsi coupé.The mesh type packs are made from a continuous mesh material, such that the package is made by cutting the mesh material at the level of the contents that the package is intended to contain and closing the package at by means of ultrasonic welding of the mesh material thus cut.

Les soudures par ultrasons qui ferment l'emballage présentent une structure ayant une géométrie de forme semi-circulaire. Par cette géométrie, les emballages obtenus ont une esthétique améliorée, une meilleure fermeture et la largeur de la soudure est réduite par rapport à d'autres géométries de soudure.The ultrasonic welds that close the package have a structure having a semicircular shape geometry. By this geometry, the resulting packages have improved aesthetics, better closure and the width of the weld is reduced compared to other welding geometries.

Pour l'exécution de cette soudure, il a été développé une pièce spécifique avec un trou à parois circulaires recevant le maillage en lui et recevant également une sonotrode émettrice, ce trou, en combinaison avec la pièce spécifique, qui agit comme un réflecteur de sonotrode, réalise la soudure du maillage avec une forme semi-circulaire.For the execution of this welding, it was developed a specific piece with a hole with circular walls receiving the mesh in him and also receiving a sonotrode emitter, this hole, in combination with the specific piece, which acts as a sonotrode reflector , performs the welding of the mesh with a semicircular shape.

La pièce spécifique a été développée en un matériau métallique, cherchant la durabilité de cette pièce, mais, lorsque la soudure par ultrasons est effectuée, la sonotrode émettrice se trouve très proche des parois circulaires du trou de la pièce qui agit en tant que sonotrode réflectrice (elle est introduite dans le trou) et vient simplement abîmer le système de soudure et oblige au remplacement de la pièce spécialement conçue.The specific part was developed in a metallic material, seeking the durability of this part, but, when the ultrasonic welding is carried out, the emitting sonotrode is very close to the circular walls of the hole of the part which acts as a reflecting sonotrode (It is inserted into the hole) and just damaged the welding system and requires replacement of the specially designed part.

Description de l'invention L'invention décrite concerne un dispositif de soudure d'emballages ayant une structure tubulaire, qui réalise une soudure de forme semi-circulaire au moyen d'un élément de soudage et d'une pièce formant un nid, la soudure pouvant être effectuée soit par des ultrasons, par de la chaleur ou par induction magnétique.DESCRIPTION OF THE INVENTION The invention described relates to a package welding device having a tubular structure, which produces a semicircular weld by means of a welding element and a piece forming a nest, the weld can be performed either by ultrasound, heat or magnetic induction.

La pièce formant un nid permettant de réaliser la soudure comprend une alvéole de structure incurvée comportant des parois incurvées et un côté ouvert qui donne accès à l'alvéole de structure incurvée, dans laquelle est réalisée la soudure d'une extrémité de l'emballage de structure tubulaire, celui-ci venant en appui contre les parois incurvées de l'alvéole de structure courbe de telle sorte que ladite soudure est réalisée selon une forme semi-circulaire. L'élément de soudage est choisi parmi : - une sonotrode émettrice, la soudure étant effectuée par ultrasons, -un émetteur de chaleur, la soudure étant effectuée par la chaleur, -un élément de pression, la soudure étant effectuée par la pression, et - une combinaison de ce qui précède.The piece forming a nest for performing the weld comprises a cell of curved structure having curved walls and an open side which gives access to the cell of curved structure, in which is performed the welding of one end of the packaging of tubular structure, the latter bearing against the curved walls of the cell of curved structure so that said weld is made in a semicircular shape. The welding element is chosen from: an emitting sonotrode, the welding being carried out by ultrasound, a heat emitter, the welding being carried out by heat, a pressure element, the welding being carried out by the pressure, and - a combination of the above.

Un autre mode de réalisation de la pièce formant nid utilisée pour effectuer la soudure objet de l'invention comprend une perforation ou un alésage en forme de tronc de cône en correspondance de l'alvéole de structure incurvée.Another embodiment of the nest piece used to perform the weld object of the invention comprises a perforation or a bore in the form of a truncated cone corresponding to the cell of curved structure.

La pièce formant nid dans les deux modes de réalisation comprend au moins un trou traversant circulaire pour sa fixation à un bâti.The nest piece in both embodiments comprises at least one circular through hole for attachment to a frame.

La pièce formant un nid utilisée pour exécuter la soudure objet de l'invention est réalisée en un matériau non conducteur, qui est de préférence un polymère.The piece forming a nest used to perform the welding object of the invention is made of a non-conductive material, which is preferably a polymer.

Description des dessinsDescription of the drawings

Pour compléter la description faite ci-dessus, et afin d'aider à une meilleure compréhension des caractéristiques de l'invention, le présent mémoire descriptif est accompagné, faisant partie intégrante de celui-ci, d'un ensemble de dessins, sur lesquels, de manière illustrative et non limitative, il est représenté ce qui suit :To complete the description given above, and in order to help a better understanding of the features of the invention, this specification is accompanied, forming an integral part thereof, of a set of drawings, on which, illustratively and non-limitatively, the following is shown:

La figure 1 est une première vue en perspective du dispositif de soudure permettant de réaliser la soudure en forme de semi-circulaire objet de l'invention, par ultrasons.Figure 1 is a first perspective view of the welding device for performing the semicircular-shaped welding object of the invention, by ultrasound.

La figure 2 est une première vue en perspective d'un emballage de structure tubulaire qui a été fermé au moyen de la soudure en forme de semi-circulaire objet de l'invention.Figure 2 is a first perspective view of a tubular structure package which has been closed by means of the semicircular-shaped weld object of the invention.

La figure 3 est une deuxième vue en plan d'un dispositif permettant d'effectuer la soudure en forme de semi-circulaire objet de l'invention, par ultrasons.Figure 3 is a second plan view of a device for performing the semicircular-shaped welding object of the invention, by ultrasound.

La figure 4 est une vue en perspective du deuxième mode de réalisation de la pièce formant nid utilisée pour la soudure objet de l'invention.Figure 4 is a perspective view of the second embodiment of the nest piece used for the welding object of the invention.

Les différents numéros de référence qui se trouvent sur les figures correspondent aux éléments suivants : 1. sonotrode émettrice, 2. pièce formant nid, 3. alvéole de structure courbe, 4. côté ouvert, 5. trou traversant circulaire, 6. emballage de structure tubulaire, 7. soudure, et 8. perforation.The different reference numbers in the figures correspond to the following elements: 1. transmitting horn, 2. nesting piece, 3. cell of curved structure, 4. open side, 5. circular through hole, 6. packing of structure tubular, 7. weld, and 8. perforation.

Mode de réalisation préféré de l'inventionPreferred embodiment of the invention

Comme déjà indiqué, et comme on peut le voir sur les figures, de l'objet de l'invention est une soudure (7) ayant une géométrie en forme de semi-circulaire, une soudure avec cette géométrie fournissant des emballages ayant une meilleure esthétique, une meilleure fermeture des emballages et permettant de réduire la largeur desdites soudures.As already indicated, and as can be seen in the figures, the object of the invention is a weld (7) having a semicircular-shaped geometry, a weld with this geometry providing packaging having a better aesthetic , better closure of the packages and to reduce the width of said welds.

En fin de compte, la soudure (7) obtenue avec le dispositif selon l'invention, en raison de la morphologie de ladite soudure (7) de forme semi-circulaire, est plus petite et offre une plus grande résistance que les soudures utilisées à ce jour pour ce type d'emballage (6) de structure tubulaire.In the end, the weld (7) obtained with the device according to the invention, because of the morphology of said semicircular weld (7), is smaller and offers greater resistance than the welds used at today for this type of packaging (6) of tubular structure.

Pour l'exécution de la soudure (7) objet de l'invention, il est possible d'employer un élément de soudage connu dans l'art antérieur et une pièce (2) formant nid qui a été spécifiquement développée pour cette application, et qui, en ce qui la concerne, a deux modes de réalisation. L'élément de soudage peut être choisi parmi une sonotrode émettrice (1) (qui est le mode de réalisation préféré de l'invention), un élément émetteur de chaleur et un élément qui produit une pression.For performing the welding (7) object of the invention, it is possible to use a welding element known in the prior art and a piece (2) forming a nest which has been specifically developed for this application, and which, as far as it is concerned, has two embodiments. The welding element may be selected from an emitting sonotrode (1) (which is the preferred embodiment of the invention), a heat emitting element and a pressure producing element.

Les deux modes de réalisation de la pièce (2) formant nid comprennent une alvéole (3) de structure courbe, avec des parois incurvées et avec un côté (4) ouvert, de sorte que l'emballage (6) de structure tubulaire est introduit par ledit côté ouvert (4) qui vient en appui contre les parois incurvées pour recevoir par la suite la sonotrode émettrice (1) qui effectue, conjointement à la pièce (2) formant nid à parois courbes, la fermeture de l'emballage (6) de structure tubulaire avec une soudure (7) de forme semi-circulaire.The two embodiments of the nest piece (2) comprise a cell (3) of curved structure, with curved walls and with an open side (4), so that the packaging (6) of tubular structure is introduced by said open side (4) which abuts against the curved walls to subsequently receive the emitting sonotrode (1) which, together with the curved wall nest piece (2), closes the packaging (6). ) tubular structure with a weld (7) semicircular shape.

Dans le deuxième mode de réalisation de la pièce (2) formant nid (observable sur la figure 4) l'alvéole (3) de structure courbe comprend une perforation (8) ayant une forme en tronc de cône qui facilite le complet placement de l'emballage (6) de structure tubulaire et la réalisation de la soudure (7) de forme semi-circulaire le plus près possible afin de maximiser la contenance de l'emballage (6) de structure tubulaire.In the second embodiment of the piece (2) forming a nest (observable in FIG. 4) the cell (3) of curved structure comprises a perforation (8) having a frustoconical shape which facilitates the complete placement of the packaging (6) tubular structure and making the weld (7) semicircular shape as close as possible to maximize the capacity of the packaging (6) of tubular structure.

Le matériau avec lequel est fabriquée la pièce (2) formant nid est un matériau non-conducteur, de préférence un polymère non conducteur, mais la pièce peut être faite de matériaux aussi divers que le bois, les verres spéciaux, les céramiques, ...The material with which the nest piece (2) is made is a non-conductive material, preferably a non-conductive polymer, but the piece can be made of materials as diverse as wood, special glasses, ceramics, etc. .

En outre, la pièce (2) formant nid comprend deux trous traversants circulaires (5) pour sa fixation à un châssis du dispositif selon l'invention à l'aide de tout moyen de fixation connu dans la technique.In addition, the piece (2) forming a nest comprises two circular through holes (5) for attachment to a frame of the device according to the invention using any fastening means known in the art.

La soudure objet de l'invention ne doit pas être limitée au mode de réalisation particulier décrit dans ce document, l'homme de l'art étant apte à développer d'autres modes de réalisation au lu de la description faite ici. En conséquence, la portée de l'invention définie par les revendications annexées.The weld object of the invention should not be limited to the particular embodiment described in this document, those skilled in the art being able to develop other embodiments by reading the description made here. Accordingly, the scope of the invention defined by the appended claims.

Claims (2)

REVENDICATIONS 1. Dispositif de soudure d'emballages (6) ayant une structure tubulaire, la soudure étant réalisée au moyen d'un élément de soudage (1) et d'une pièce (2) formant nid, caractérisé en ce que la pièce (2) formant nid comprend une alvéole (3) de structure incurvée comprenant des parois incurvées et un côté (4) ouvert qui dorme accès à l'alvéole (3) de structure incurvée dans laquelle est réalisée la soudure d'une extrémité de l'emballage (6) de structure tubulaire, cette extrémité venant en appui contre les parois incurvées de alvéole (3) de structure courbe, de telle sorte que ladite soudure (7) est réalisée selon une forme semi-circulaire. 2. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon la revendication 1, caractérisé en ce que l'élément de soudage (1) est une sonotrode émettrice, en ce que la soudure (7) est réalisée par ultrasons, et en ce que la pièce (2) formant nid est faite en un matériau non conducteur. 3. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon la revendication 1, caractérisé en ce que l'élément de soudage (1) est un émetteur de chaleur et en ce que la soudure (7) est réalisée par la chaleur. 4. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon la revendication 1, caractérisé en ce que l'élément de soudage (1) est un élément de pression et en ce que la soudure (7) est réalisée par pression. 5. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce (2) formant nid comporte une perforation ou un alésage (8) de forme de tronc de cône en correspondance de l'alvéole (3) de structure incurvée. 6. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce (2) formant nid comprend au moins un trou traversant circulaire (5) pour sa fixation à un bâti. Ί. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau de la pièce (2) est non conducteur.1. Packaging welding device (6) having a tubular structure, the welding being carried out by means of a welding element (1) and a part (2) forming a nest, characterized in that the part (2) ) forming a nest comprises a cell (3) of curved structure comprising curved walls and an open side (4) that accesses the cell (3) of curved structure in which is performed the welding of one end of the package (6) tubular structure, this end bearing against the curved walls of cell (3) of curved structure, such that said weld (7) is formed in a semicircular shape. Packaging welding device (6) having a tubular structure according to claim 1, characterized in that the welding element (1) is an emitting sonotrode, in that the weld (7) is made by ultrasound, and in that the nest piece (2) is made of a non-conductive material. Packaging welding device (6) having a tubular structure according to claim 1, characterized in that the welding element (1) is a heat emitter and in that the weld (7) is produced by the heat. Packaging welding device (6) having a tubular structure according to claim 1, characterized in that the welding element (1) is a pressure element and in that the welding (7) is carried out by pressure . Packing welding device (6) having a tubular structure according to any one of the preceding claims, characterized in that the nest piece (2) has a perforation or a bore (8) of truncated cone shape. in correspondence of the cell (3) of curved structure. Packing welding device (6) having a tubular structure according to any one of the preceding claims, characterized in that the nest piece (2) comprises at least one circular through-hole (5) for attachment to a frame. Ί. Packaging sealing device (6) having a tubular structure according to any one of the preceding claims, characterized in that the material of the workpiece (2) is non-conductive. 8. Dispositif de soudure d'emballages (6) ayant une structure tubulaire selon la revendication 7, caractérisé en ce que le matériau est un polymère.Packing welding device (6) having a tubular structure according to claim 7, characterized in that the material is a polymer.
FR1555969A 2014-06-30 2015-06-26 PACKAGING WELDING DEVICE HAVING A TUBULAR STRUCTURE Expired - Fee Related FR3022893B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201430904U ES1116180Y (en) 2014-06-30 2014-06-30 WELDING OF TUBULAR STRUCTURE CONTAINERS
ES201430904 2014-06-30

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FR3022893A1 FR3022893A1 (en) 2016-01-01
FR3022893B1 true FR3022893B1 (en) 2019-09-06

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FR3022893A1 (en) 2016-01-01
ES1116180Y (en) 2014-10-06

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