FR2947750A1 - Dispositif de coupe et de soudure par ultrasons utilisable notamment sur metiers a tisser - Google Patents

Dispositif de coupe et de soudure par ultrasons utilisable notamment sur metiers a tisser Download PDF

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Publication number
FR2947750A1
FR2947750A1 FR0954709A FR0954709A FR2947750A1 FR 2947750 A1 FR2947750 A1 FR 2947750A1 FR 0954709 A FR0954709 A FR 0954709A FR 0954709 A FR0954709 A FR 0954709A FR 2947750 A1 FR2947750 A1 FR 2947750A1
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France
Prior art keywords
cutting
support
subjugated
respect
welding device
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Granted
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FR0954709A
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FR2947750B1 (fr
Inventor
Daniel Vittoz
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SARL ENERSERVICES
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SARL ENERSERVICES
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08Means for treating work or cutting member to facilitate cutting
    • B26D7/086Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7435Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a roller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7443Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241Cutting, e.g. by using waterjets, or sawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/03After-treatments in the joint area
    • B29C66/034Thermal after-treatments
    • B29C66/0342Cooling, e.g. transporting through welding and cooling zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167Quick change joining tools or surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/818General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/818General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B29C66/81812General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws the welding jaws being cooled from the outside, e.g. by blowing a gas or spraying a liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8227Transmission mechanisms using springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/861Hand-held tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/861Hand-held tools
    • B29C66/8618Hand-held tools being battery operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70Devices for cutting weft threads
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03JAUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00Auxiliary apparatus combined with or associated with looms
    • D03J1/06Auxiliary apparatus combined with or associated with looms for treating fabric
    • D03J1/08Auxiliary apparatus combined with or associated with looms for treating fabric for slitting fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2685Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member flexible mounting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02Means for moving the cutting member into its operative position for cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/431Joining the articles to themselves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729Textile or other fibrous material made from plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/87Auxiliary operations or devices
    • B29C66/876Maintenance or cleaning

Abstract

Le dispositif de coupe et de soudure par ultrasons est remarquable en ce qu'il comprend une structure compacte avec un générateur électronique (1), un convertisseur acoustique (4) et une sonotrode (5) qui sont montés en prolongement vertical par rapport audit support fixe (2), et en ce que le convertisseur acoustique (4) est intégré dans un bloc-pinces (6) qui se situe dans le prolongement sous jacent du générateur, et en ce qu'une contre masse (14) est disposée entre les deux, et en ce que un moyen (7) permettant l'entrée d'air de refroidissement est associé au bloc-pinces (6) permettant de réguler la température autour du convertisseur en débouchant en partie inférieure du bloc-pinces par un conduit (9) autour de la sonotrode et de la zone de coupe et de soudure, et en ce que l'outil de coupe (10) est monté à capacité d'orientation angulaire par rapport à un support qui reçoit un axe (13) assujetti à un moyen de pression (12) à l'encontre d'un moyen élastique (11) pour autoriser la régulation de pression de la sonotrode sur l'outil.

Description

DISPOSITIF DE COUPE ET DE SOUDURE PAR ULTRASONS UTILISABLE NOTAMMENT SUR METIERS A TISSER L'invention se rattache au secteur technique des outils de coupe à effet ultrasons montés sur métier à tisser. L'utilisation de dispositif de coupe et de soudure par ultrasons est très largement connue en particulier dans le domaine textile pour permettre, d'une part, la coupe de bandes de textiles et, d'autre part, d'avoir des bordures de finition de qualité, sans fils apparents pouvant être accrochés et constituer des amorces de démaillage. Les dispositifs et appareils de coupe et de soudure par ultrasons restent néanmoins complexes, volumineux, d'un coût élevé, et intégrant des moyens de refroidissement extérieurs au dispositif lui-même. La démarche du demandeur a été de concevoir un dispositif de coupe et de soudure par ultrasons, compact, léger, adaptable aisément sur des métiers à tisser, et constituant un ensemble homogène sans fils apparents. La solution apportée répond à l'ensemble de ces objectifs de manière simple, peu coûteuse, et aisément applicable sur les métiers à tisser notamment.
Selon une première caractéristique, le dispositif de coupe et de soudure par ultrasons est remarquable en ce qu'il comprend une structure compacte avec un générateur électronique, un convertisseur acoustique et une sonotrode qui sont montés en prolongement vertical par rapport audit support fixe, et en ce que le convertisseur acoustique est intégré dans un bloc-pinces qui se situe dans le prolongement sous jacent du générateur, et en ce qu'une contre masse est disposée entre les deux, et en ce que un moyen permettant l'entrée d'air de refroidissement est associé au bloc-pinces permettant de réguler la température autour du convertisseur en débouchant en partie inférieure du bloc-pinces par un conduit autour de la sonotrode et de la zone de coupe et de soudure, et en ce que l'outil de coupe est monté à capacité d'orientation angulaire par rapport à un support qui reçoit un axe assujetti à un moyen de pression à l'encontre d'un moyen élastique pour autoriser la régulation de pression de la sonotrode sur l'outil.
Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description. Pour fixer l'objet de l'invention illustrée de manière non limitative aux figures des dessins où : - La figure 1 est une vue du dispositif, selon l'invention, en situation montage en vue de la coupe de la bande de matériau textile. - La figure 2 est une vue du dispositif, selon la figure 1, mais avec la représentation du dispositif de coupe en situation de non fonctionnement. - La figure 3 est une vue à caractère schématique du dispositif selon l'invention. - La figure 4 est une vue partielle avant montage de l'ensemble convertisseur du dispositif Afin de rendre plus concret l'objet de l'invention, on le décrit d'une manière non limitative illustrée aux figures des dessins. Le dispositif de coupe et de soudure par ultrasons, selon l'invention, est identifié dans son ensemble par (D). Il vient se fixer par un support (2) sur le bâti d'un métier à tisser à un endroit approprié correspondant à la zone de coupe du tissu. Cette fixation se fait de toute manière appropriée. En fonction des opérations à effectuer, un ou deux dispositifs de ce type sont montés en parallèle. Le dispositif, selon l'invention, présente une structure compacte sans branchement électrique apparent autre que le raccordement au réseau avec un générateur électronique (1), un convertisseur acoustique (4) et une sonotrode (5) qui sont montés en prolongement vertical par rapport audit support fixe (2). Ainsi qu'il apparaît aux dessins, le générateur (1) se situe en partie supérieure et est alimenté en 24 volts continus alimentés par une alimentation secteur à sortie 24 volts et de toute manière connue. Le convertisseur acoustique (4) est intégré dans un bloc-pinces (6) qui se situe dans le prolongement sous jacent du générateur. Une contre masse (14) est disposée entre les deux. A partir du support fixe (2) est disposé un moyen (7) permettant l'entrée d'air de refroidissement permettant de réguler la température autour du convertisseur, et aussi débouchant en partie inférieure du bloc-pinces par un conduit (9) autour de la sonotrode et de la zone de coupe et de soudure. Le conduit (9) est fixé par un moyen de liaison (15) au support (2). Le bloc-pinces (6) est ainsi agencé intérieurement pour autoriser la circulation et la sortie d'air. Des moyens de réglage (16) du débit d'air sont intégrés dans le bloc-pinces en étant accessibles pour intervention. La sonotrode (5) est disposée dans le prolongement vertical du convertisseur en étant liée à ce dernier par tous moyens connus appropriés. L'extrémité inférieure de la sonotrode est destinée à être adjacente à l'outil de coupe (10), ainsi qu'il sera précisé par la suite. Cet outil de coupe (10) est monté par rapport au support fixe (2) avec une capacité d'orientation angulaire. A cet effet, l'outil (10) est monté sur un porte outil (3) qui est disposé dans un plan horizontal, ledit porte outil est monté en extrémité d'un axe (13) vertical monté sur une chape (17) de fixation disposée en bout de la pièce support (2). Ledit axe reçoit à son extrémité supérieure un bouton moleté (12) tandis qu'un ressort de rappel (11) est disposé entre ledit bouton moleté et l'aile supérieure horizontale (17.1) de la partie chape (17) précitée. L'axe (13) est monté libre en rotation selon une indexation angulaire déterminée et toute action d'appui sur le bouton moleté à l'encontre du ressort permet une rotation angulaire contrôlée et donc le dégagement de l'outil (10). Des moyens d'indexation non représentés permettent le débattement angulaire contrôlé de l'outil de coupe. Selon une autre disposition de l'invention, le porte outil (3) peut être adapté pour la réception de l'outil de manière à permettre une coupe centrale ou latérale en fonction des besoins. Selon une autre disposition de l'invention, la chape (17) de guidage de l'axe (13) porte outil est ainsi aménagée pour la réception complémentaire d'un moyen de sécurité (18) incluant un couteau (19), ce moyen étant monté articulé par rapport à ladite chape (17), et ce à l'encontre d'un moyen élastique (20) de rappel. Ce couteau (19) disposé en aval de l'outil de coupe (10) a une fonction de coupe des résidus de tissus préalablement coupés pour parfaire la fonction de coupe si nécessaire. Si, par contre, pour une raison quelconque le tissu n'a pas été coupé par l'outil de coupe (10), l'action de ce moyen (18) va le détecter à l'approche du couteau (19) et va actionner un interrupteur signalant l'anomalie et arrêtant le fonctionnement du dispositif.
Selon une autre disposition de l'invention, le dispositif de coupe et soudure par ultrasons peut aussi fonctionner en autonomie en étant détaché de la pièce support (2) pour des opérations ponctuelles de soudure. Dans ce cas, le bloc-pinces (6) est aménagé avec une poignée de préhension, non représentée, pour sa manipulation par l'opérateur. Une plaque de liaison du type plaque support (2) assure le montage du générateur, du convertisseur, de la sonotrode, du bloc-pinces sur le conduit d'air. Une batterie est disposée sur une poignée solidaire du bloc-pinces.
Le fonctionnement du dispositif, selon l'invention, est alors le suivant. Le tissu à couper et à souder passe entre la sonotrode et l'outil de coupe (10). La pression entre les deux éléments précités est assurée et contrôlée par le moyen de pression (11) constituée par le ressort de rappel mis en tension par le moyen de réglage (12) de type bouton moleté. Les vibrations émises par la sonotrode frappent le tissu à une fréquence de l'ordre de 40 KHz et, grâce à l'outil, le tissu est fondu. L'invention présente de nombreux avantages. On souligne tout d'abord son aspect compact, avec un volume d'encombrement très largement inférieur à l'existant du double voire du triple. Son utilisation est sécurisée en basse tension 24 volts tout en offrant une puissance de 100 w à 300 watts selon le générateur choisi. L'intégration du circuit de refroidissement est aussi importante et il apparaît qu'il n'y a aucun fil, conduit de quelque nature que ce soit en débordement extérieur susceptible de gêner et d'être accrochée. Le dispositif peut être ainsi utilisé en autonomie ce qui laisse à l'opérateur une marge de manoeuvre importante quant à son utilisation. Dans ce cas, le porte-outil (10) peut ne pas être utilisé. Un autre avantage réside dans l'adaptabilité du porte outil selon les besoins. La construction et simple. Le volume de stockage du dispositif, selon l'invention, est réduit.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192421A (zh) * 2012-01-04 2013-07-10 西门子公司 具有变化的切割区域的切割机
CN103433964A (zh) * 2013-08-15 2013-12-11 苏州华日金菱机械有限公司 一种具有夹持装置的超声波切割机
FR3107852A1 (fr) 2020-03-09 2021-09-10 Spoolex Dispositif compact de laminage/moletage par ultrasons et de découpe d’un article thermofusible

Citations (1)

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Publication number Priority date Publication date Assignee Title
GB2167707A (en) * 1984-12-03 1986-06-04 Branson Ultrasonics Corp Ultrasonic cutting and sealing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167707A (en) * 1984-12-03 1986-06-04 Branson Ultrasonics Corp Ultrasonic cutting and sealing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192421A (zh) * 2012-01-04 2013-07-10 西门子公司 具有变化的切割区域的切割机
EP2612736A1 (fr) * 2012-01-04 2013-07-10 Siemens Aktiengesellschaft Machine à découper dotée d'une variation de la zone de coupe
CN103192421B (zh) * 2012-01-04 2016-03-09 西门子公司 具有变化的切割区域的切割机
CN103433964A (zh) * 2013-08-15 2013-12-11 苏州华日金菱机械有限公司 一种具有夹持装置的超声波切割机
FR3107852A1 (fr) 2020-03-09 2021-09-10 Spoolex Dispositif compact de laminage/moletage par ultrasons et de découpe d’un article thermofusible
WO2021181023A1 (fr) 2020-03-09 2021-09-16 Spoolex Dispositif compact de laminage/moletage par ultrasons et de decoupe d'un article thermofusible

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