FR2916154A1 - EXTRUSION SUPPORT DEVICE FOR DYNAMIC INRIGHTS, ADDITIONAL EXTUDATES, IN THE MAIN EXTRUDATE - Google Patents

EXTRUSION SUPPORT DEVICE FOR DYNAMIC INRIGHTS, ADDITIONAL EXTUDATES, IN THE MAIN EXTRUDATE Download PDF

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Publication number
FR2916154A1
FR2916154A1 FR0703466A FR0703466A FR2916154A1 FR 2916154 A1 FR2916154 A1 FR 2916154A1 FR 0703466 A FR0703466 A FR 0703466A FR 0703466 A FR0703466 A FR 0703466A FR 2916154 A1 FR2916154 A1 FR 2916154A1
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France
Prior art keywords
dies
jaws
adductors
additional
motors
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Withdrawn
Application number
FR0703466A
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French (fr)
Inventor
Blaise Francois Figuereo
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Individual
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Individual
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Priority to FR0703466A priority Critical patent/FR2916154A1/en
Priority to PCT/FR2008/050835 priority patent/WO2008149020A2/en
Publication of FR2916154A1 publication Critical patent/FR2916154A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/20—Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Abstract

Cette ou ces incrustations, à sections calibrées par des adducteurs (18)(19) issues d'une ou plusieurs filières tournantes, décrivent dans le profilé, soit des sinusoïdes,soit des hélicoïdes (20)(21) dont les pas, et les sens sont fonction, de la, ou des vitesses des filières rotatives. Il est possible aussi, d'obtenir des listels sur les génératrices de l'extrudât, en immobilisant la ou les filières rotatives.En harmonisant, la, ou les vitesses de rotation, de ou des filières rotatives, avec la vitesse d'extrusion primaire, on obtient un ou plusieurs tubes, concentriques, constitués par les spires jointives.Ce dispositif est constitué d'un bâti fixe, composé de deux mâchoires (1)(2) articulées sur un axe (3),et complété par une fermeture autocentreuse (4) comprenant les supports des moteurs(5)(6).Ce bâti ainsi constitué, maintient rassemblées une ou plusieurs filières,(12)(13) rotatives,entraînées par les moteurs(5)(6).Cette ou ces filières rotatives, comportent un canal (16)(17) fermé par les flasques fixes(7)(8) faisant parties des mâchoires (1)(2).A travers les raccord (10)(11) ,les extrudeuses additionnelles,alimentent les adducteurs (18)(19) débouchant dans les canaux (16)(17).Le dispositif selon l'invention, est particulièrement destiné à produire des extrudâts utilisés pour, les supports galéniques, intradermiques et intracorporels, notamment en anneaux vaginaux.Les cordons pyrotechniques à détoniques contrôlées.This or these encrustations, with sections calibrated by adductors (18) (19) from one or more rotating dies, describe in the profile, either sinusoids or helicoids (20) (21) whose steps, and senses are function, of, or speeds of rotary dies. It is also possible to obtain listels on the generators of the extrudate, by immobilizing the rotary die (s). By harmonizing the rotation speed (s) of the rotary dies with the primary extrusion speed. , one obtains one or more concentric tubes, constituted by the contiguous turns.This device consists of a fixed frame, composed of two jaws (1) (2) articulated on an axis (3), and completed by a self-centering closure (4) comprising the supports of the motors (5) (6) .This frame thus constituted, maintains together one or more spinning dies (12) (13), driven by the motors (5) (6) .This or these dies rotatable, comprise a channel (16) (17) closed by the fixed flanges (7) (8) forming part of the jaws (1) (2) .Through the connectors (10) (11), the additional extruders feed the adductors (18) (19) opening into the channels (16) (17) .The device according to the invention is particularly intended to produce extrudates used for galenic, intradermal and intracorporeal carriers, especially vaginal rings. Controlled detonation pyrotechnic cords.

Description

-1--1-

La présente invention concerne un dispositif monté en aval d'une filière d'extru--sion primaire, avec laquelle est obtenu aujourd'hui, en continu, un profilé de section constante, pouvant être composé d'une, ou plusieurs matières, de con--sistances et/ou de couleurs différentes.  The present invention relates to a device mounted downstream of a primary extrusion die, with which is obtained today, continuously, a section of constant section, which may be composed of one or more materials, resistors and / or different colors.

Avec ce type de filière d'extrusion, les profilés mono-matière ou multies-matiè--ières obtenus sont de qualité et répartition géométriques constantes en sortie d'extrusion.  With this type of extrusion die, the single-material or multi-material profiles obtained are of constant geometrical quality and distribution at the extrusion outlet.

Ces résultats sont obtenus, en construisant ces filières suivant les indications de l'inventeur, contenues dans les descriptions faisant l'objet des brevets d'enceinte à veine contrôlée FR 79.31.048 et/ou FR 80.24.721 et/ou du système de co-extrusion FR 86.07.035 et/ou notamment du dispositif permettant la fabrication d'un tore moulé à partir d'un fragment de profilé extrudé FR 90.09.942. Si l'agencement, des différents composants du profilé, présente des répartitions de sections constantes, durant tout le temps de l'extrusion, il est impossible en revanche, dans l'état actuel de la technique connue, de faire évoluer pendant l'extrusion le dit agencement.  These results are obtained, by constructing these dies according to the indications of the inventor, contained in the descriptions which are the subject of the controlled-vein containment patents FR 79.31.048 and / or FR 80.24.721 and / or the control system. coextrusion FR 86.07.035 and / or in particular the device enabling the manufacture of a torus molded from an extruded profile fragment FR 90.09.942. If the arrangement of the various components of the profile, has constant section distributions, during the entire time of extrusion, it is impossible, however, in the current state of the prior art, to evolve during extrusion the said arrangement.

Toute réorganisation de l'agencement des matières composant le profil, ne peut 20 être obtenue qu'en redéfinissant la géométrie d'une nouvelle filière. Cette condition implique donc, un arrêt de l'extrusion, suivi d'un démontage de la filière, puis son remplacement par une filière de nouvelle définition.  Any reorganization of the arrangement of the materials composing the profile can only be obtained by redefining the geometry of a new die. This condition therefore implies a stop of the extrusion, followed by a dismantling of the die, then its replacement by a new definition die.

Le dispositif selon l'invention, permet de modifier durant l'extrusion primaire 25 d'un profilé mono ou multies-matières, l'agencement et la quantité de ou des matières provenant d'une ou plusieurs extrudeuses additionnelles, composant le profilé issu alors de l'extrusion globale.  The device according to the invention makes it possible to modify, during the primary extrusion 25 of a single or multi-material profile, the arrangement and the quantity of material (s) coming from one or more additional extruders, composing the profile thus obtained. of global extrusion.

Les dessins annexés illustrent l'invention : 30 La figure 1, représente deux demies-coupes du dispositif fermé. La figure 2, représente une vue latérale du dispositif ouvert. La figure 3, représente une vue de face, et une coupe d'une filière rotative, avec vue agrandie d'un adducteur La figure 4, représente les divers agencements des listels. 35 En référence à ces dessins, le dispositif se compose principalement de deux parties fixes, dénommées mâchoires(1)(2) dont la face externe de l'une d'elles(l) est installée en aval immédiat de la face primaire, au travers de laquelle un barreau cylindrique avec âme est extrudé (0) 40 Ces deux mâchoires font parties de l'ensemble statique de ce dispositif d'extrusion.  The accompanying drawings illustrate the invention: Figure 1 shows two half-sections of the closed device. Figure 2 shows a side view of the open device. Figure 3 shows a front view, and a section of a rotating die, with an enlarged view of an adductor. Figure 4 shows the various arrangements of the listels. With reference to these drawings, the device consists mainly of two fixed parts, called jaws (1) (2) whose outer face of one of them (1) is installed immediately downstream of the primary face, the Through which a cylindrical bar with core is extruded (0) 40 These two jaws are part of the static assembly of this extrusion device.

La mâchoire(2) est articulée sur la(1) grâce à un axe (3) permettant ainsi, un mouvement relatif d'ouverture, et de fermeture d'une mâchoire par 45 rapport à l'autre. 2916154 -2-  The jaw (2) is hinged to the (1) by means of an axis (3) thus allowing a relative movement of opening, and closure of one jaw relative to the other. 2916154 -2-

A l'opposé de l'axe de charnière, une fermeture mécanique autocentreuse(4) assure la géométrie appropriée, aux mouvements rotatifs ou alternatifs des filières mobiles du dispositif conforme à l'invention. Il est aussi possible, d'immobiliser cette ou ces filières durant l'extrusion. Sur chacune des mâchoires composant la partie fixe, et à l'opposé de l'axe de charnière(3) sont disposés les organes moteurs(5)(6) permettant les divers mouvements des filières mobiles du dispositif.  Opposite the hinge axis, a self-centering mechanical closure (4) ensures the appropriate geometry, rotary or alternating movements of the movable dies of the device according to the invention. It is also possible to immobilize this or these dies during extrusion. On each of the jaws forming the fixed part, and opposite the hinge axis (3) are arranged the drive members (5) (6) for the various movements of the movable dies of the device.

10 Sur chacune des mâchoires, les flasques d'obturation(7)(8) sont solidaires des mâchoires, par fixation mécaniques(9) en complément des raccords traversants, de nez d'extrudeuses additionnelles(10)(11) .  On each of the jaws, the closure flanges (7) (8) are secured to the jaws, by mechanical attachment (9) in addition to the through-connections, additional extruder noses (10) (11).

La définition géométrique des mâchoires porte-flasques, permet , grâce à 15 l'axe(3) une ouverture aisée de l'ensemble, afin d'accéder aux filières. Il est utile de rappeler ici, que ces filières maintenue par ces mâchoires, peuvent être soit immobiles, soit mobiles, à mouvements alternés, soit en rotation trigonométrique ou antitrigonométrique, soit à cycles séquencés, comprenant l'ensemble des mouvements sus indiqués.  The geometric definition of the flange jaws allows, thanks to the axis (3) an easy opening of the assembly, in order to access the dies. It is useful to recall here that these dies maintained by these jaws, can be either immobile or mobile, alternating movements, or trigonometric or antitrigonometric rotation, or sequenced cycles, including all movements above indicated.

Les filières rotatives(12)(13) ,sont constituées, suivant l'invention, d'une pièce de révolution, construite dans un matériau, rassemblant les qualités de tenue mécanique et tribologique requises. A la périphérie de ces filières, sont usinées les dentures, aptes à engrener 25 dans les pignons des moteurs(5)(6) en direct, ou comme on peux le comprendre, par l'intermédiaire, de tout autres organes de transmission.  The rotary dies (12) (13) are constituted, according to the invention, a piece of revolution, constructed of a material, bringing together the qualities of mechanical and tribological required. At the periphery of these dies, are machined the teeth, adapted to mesh 25 in the pinions of the motors (5) (6) live, or as can be understood, through any other transmission elements.

Au sein de la section de ces filières rotatives, est creusé un canal circulaire (16)(17) de section hyperbolique, permettant une circulation optimale, de 30 la matière véhiculée par chacune des extrudeuses additionnelles(10)(11), au travers des raccords de nez de ces extrudeuses additionnelles. Ces matières sous pression, s'écoulent alors, à travers les adducteurs à section déterminées(18)(19) pour s'insérer dans la section du profilé défilant, en générant une trace additionnelle, pouvant se présenter, soit sous 35 forme de génératrice du profilé extrudé, soit sous forme de sinusoïde, soit sous forme d'hélicoïde(20)(21). Dans le cas d'une hélicoïde; en harmonisant la vitesse de rotation de la filière, par rapport à la vitesse d'extrusion globale du profilé, on peux obtenir un tube côtelé, d'une seule et même extrusion . 40 Comme on peux le comprendre, l'extrusion d'un profilé comprenant en son sein, un ou plusieurs tubes concentriques par rapport à son centre, atteste des qualités du dispositif conforme à l'invention. 5 2916154 -3-  Within the section of these rotary dies, is hollowed a circular channel (16) (16) of hyperbolic section, allowing optimal circulation, of the material conveyed by each of the additional extruders (10) (11), through nose fittings of these additional extruders. These pressurized materials then flow through the determined section adductors (18) (19) to fit into the section of the traveling section, generating an additional trace, which may be in the form of a generator. extruded profile, either in the form of sinusoid, or in the form of helicoid (20) (21). In the case of a helicoid; by harmonizing the rotational speed of the die, with respect to the overall extrusion speed of the profile, it is possible to obtain a ribbed tube of one and the same extrusion. As can be understood, the extrusion of a profile comprising within it, one or more tubes concentric with respect to its center, attests the qualities of the device according to the invention. 5 2916154 -3-

Les caractéristiques géométriques, des pas des sinusoïdes et des hélicoïdes, sont modifiables durant l'extrusion. Les positions des génératrices le sont aussi. Il suffit pour cela, comme on peux le comprendre,de programmer en 5 conséquence, les vitesses ou les arrêts des moteurs(5)(6) entraînant les filières rotatives(12)(13).  The geometric characteristics, sinusoid pitch and helicoids, are modifiable during extrusion. The positions of the generators are too. For this purpose, as can be understood, it is sufficient to program the speeds or stopping of the motors (5) (6) driving the rotary dies (12) (13) accordingly.

Le dispositif selon l'invention, est particulièrement destiné à fabriquer par extrusion multies matières, les inserts utilisés comme supports galéniques, 10 intradermiques rétrolargant, un ou plusieurs principes actifs. Les profilés mise en boucle, destinés aux anneaux vaginaux rétrolargant un ou plusieurs produits actifs. Les barreaux destinés à la confection, de cordons pyrotechniques à détoniques contrôlées.  The device according to the invention is particularly intended to manufacture by multiple extrusion materials, the inserts used as galenic supports, intradermic retrolargant, one or more active ingredients. Looped profiles intended for vaginal rings retrolargant one or more active products. Bars for making, pyrotechnic cord with controlled detonation.

15 Ces exemples de fabrications, ne sauraient en aucun cas, limiter la portée de l'invention, si avec celle-ci, étaient fabriqués des produits de structures semblables, destinés à d'autres applications.These examples of manufacture, in no way limit the scope of the invention, if with it were manufactured products of similar structures for other applications.

Claims (3)

REVENDICATIONS 1) Dispositif permettant d'insérer, dans un profilé en cours d'extrusion(0) , un ou plusieurs listels(20)(21) issus d'adducteurs(18)(19) alimentés par une ou plusieurs extrudeuses, caractérisé en ce que, ces filières(12)(13) mobiles ou immobiles, alimentées en matières extrudables, par une ou plusieurs extrudeuses additionnelles, à travers les raccords(10)(11) créent des listels de sections conformes, aux adducteurs(18)(19) s'insérant dans l'extrudât primaire(0) issu de l'extrusion principale.  1) Device for inserting into a profile during extrusion (0), one or more strips (20) (21) from adductors (18) (19) fed by one or more extruders, characterized in that that these movable or non-moving dies (12), supplied with extrudable materials, by one or more additional extruders, through the connections (10) (11) create listels of conformal sections, with the adductors (18) (19). ) inserted in the primary extrudate (0) from the main extrusion. 2) Dispositif selon revendication 1, caractérisé en ce que, la ou les filières mobiles ou immobiles(12)(13) mues par les moteurs(5)(6) programmés à l'arrêt ou en mouvement, canalisent la matière extrudable issue de ou des extrudeuses additionnelles, grâce à une gorge de section hyperbolique(16)(17) creusée dans la section des filières mobiles.  2) Device according to claim 1, characterized in that, the mobile or stationary die (s) (12) (13) driven by the motors (5) (6) programmed to stop or moving, channel the extrudable material from or additional extruders, thanks to a hyperbolic section groove (16) (17) dug in the section of the mobile dies. 3) Dispositif selon revendication 2, caractérisé en ce que, les gorges de section hyperboliques(16)(17) deviennent canaux d'alimentation de matières extrudables dès lors que les fermetures(7)(8) solidaires des mâchoires(1)(2) se referment sur les filières mobiles(12)(13). 25 30 35  3) Device according to claim 2, characterized in that the hyperbolic section grooves (16) (17) become supply channels of extrudable materials when the closures (7) (8) integral with the jaws (1) (2). ) are closed on the mobile dies (12) (13). 25 30 35
FR0703466A 2007-05-15 2007-05-15 EXTRUSION SUPPORT DEVICE FOR DYNAMIC INRIGHTS, ADDITIONAL EXTUDATES, IN THE MAIN EXTRUDATE Withdrawn FR2916154A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0703466A FR2916154A1 (en) 2007-05-15 2007-05-15 EXTRUSION SUPPORT DEVICE FOR DYNAMIC INRIGHTS, ADDITIONAL EXTUDATES, IN THE MAIN EXTRUDATE
PCT/FR2008/050835 WO2008149020A2 (en) 2007-05-15 2008-05-14 Device for inserting filets on or in a profile during main extrusion process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0703466A FR2916154A1 (en) 2007-05-15 2007-05-15 EXTRUSION SUPPORT DEVICE FOR DYNAMIC INRIGHTS, ADDITIONAL EXTUDATES, IN THE MAIN EXTRUDATE

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FR2916154A1 true FR2916154A1 (en) 2008-11-21

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WO (1) WO2008149020A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048304B (en) * 1953-04-15 1959-01-08
US3642396A (en) * 1968-02-14 1972-02-15 Lavreotiki Soc Ind Anonyme Extrusion head for continuously extruding a compound strand of plastic materials
US20050260408A1 (en) * 2004-05-19 2005-11-24 Prem Anand Rotatable head for forming spiral extrusions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257482A (en) * 1963-06-17 1966-06-21 Phillips Petroleum Co Process for making plastic container
EP1554990A3 (en) * 1999-01-29 2008-08-06 Medtronic, Inc. Implantable medical device with enhanced biocompatibility and biostability
GB0417350D0 (en) * 2004-08-04 2004-09-08 Incobar Ltd Urinary products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048304B (en) * 1953-04-15 1959-01-08
US3642396A (en) * 1968-02-14 1972-02-15 Lavreotiki Soc Ind Anonyme Extrusion head for continuously extruding a compound strand of plastic materials
US20050260408A1 (en) * 2004-05-19 2005-11-24 Prem Anand Rotatable head for forming spiral extrusions

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WO2008149020A2 (en) 2008-12-11
WO2008149020A3 (en) 2009-05-07

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