FR2501080A1 - Two ingredient mixture applicator - has coaxial cartridges each containing liq. or pasty ingredient with coaxial dispensing nozzle - Google Patents

Two ingredient mixture applicator - has coaxial cartridges each containing liq. or pasty ingredient with coaxial dispensing nozzle Download PDF

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Publication number
FR2501080A1
FR2501080A1 FR8104213A FR8104213A FR2501080A1 FR 2501080 A1 FR2501080 A1 FR 2501080A1 FR 8104213 A FR8104213 A FR 8104213A FR 8104213 A FR8104213 A FR 8104213A FR 2501080 A1 FR2501080 A1 FR 2501080A1
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characterized
device according
cartridge
cartridges
nozzle
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FR8104213A
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French (fr)
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Guillot Claude
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503Details of the outlet element
    • B05C17/00516Shape or geometry of the outlet orifice or the outlet element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/06Mixers in which the components are pressed together through slits, orifices, or screens; Static mixers; Mixers of the fractal type
    • B01F5/0661Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs
    • B01F5/0662Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits
    • B01F5/0665Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits the slits being formed between opposed conical or cylindrical surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/06Mixers in which the components are pressed together through slits, orifices, or screens; Static mixers; Mixers of the fractal type
    • B01F5/0661Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs
    • B01F5/0662Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits
    • B01F5/0668Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits the opposed surfaces being provided with grooves
    • B01F5/0672Crossing sets of grooves forming a labyrinth formed on opposed surfaces, e.g. on planar surfaces or on cylinders or cones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/06Mixers in which the components are pressed together through slits, orifices, or screens; Static mixers; Mixers of the fractal type
    • B01F5/0661Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs
    • B01F5/0662Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits
    • B01F5/0668Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits the opposed surfaces being provided with grooves
    • B01F5/0676Mixers in which the components are pressed through slits while introducing shear, e.g. the slits being formed by balls and their seats, by the spiros of helical springs characterized by the configuration of the surfaces forming the slits the opposed surfaces being provided with grooves the grooves being formed on the outer surface of the cylindrical or conical core of the slits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B05C17/00559Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components the different components being stored in coaxial chambers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F13/00Other mixers; Mixing plant, including combinations of mixers, e.g. of dissimilar mixers
    • B01F13/0016Movable or transportable mixing devices or plants
    • B01F13/0018Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force
    • B01F13/002Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force portable during use, e.g. hand-held
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F2215/00Auxiliary or complementary information in relation with mixing
    • B01F2215/0001Field of application of the mixing device
    • B01F2215/0039Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like

Abstract

The dispenser applies a mixture of two or more liquid or pasty ingredients, and has two coaxial cartridges each filled with an ingredient, open at one end and with a central discharge nozzle at the other. Central and annular pistons form sliding seals in the central cartridge and in the annular chamber formed between the central cartridge and the outer cartridge. The discharge nozzle (20) of the outer cartridge (16) is of larger diameter than, and coaxial to, that (14) of the inner one (10). A hollow distance piece (22) forms a radial path (26,28) between the bottoms (12,18) of the cartridges, connecting the annular chamber (38) to the outer cartridge nozzle.

Description

La présente invention concerne un dispositif destiné à l'application, leextrusion ou l'injection simultanée de composants liquides ou pâteux, tels que colles, mastics ou graisses. The present invention relates to a device for applying, leextrusion or simultaneous injection of liquid or pasty components, such as adhesives, sealants or fat.

On connait des dispositifs de ce type dans lesquels les composants sont conditionnés dans des cartouches disposées côte-à-côte et dont les sorties se rejoignent dans une buse en Y où les composants sont mélangés pour former un produit homogène. There are known devices of this type in which the components are packaged in cartridges arranged side by side and whose outputs are joined in a nozzle Y where the components are mixed to form a homogeneous product.

Dans d'autres dispositifs connus, les composants sont conditionnés dans des cartouches coaxiales dont les sorties sont décalées radialement l'une par rapport à autre. In other known devices, the components are packaged in coaxial cartridges whose outputs are radially offset with respect to time. De telles cartouches ne sont pas disponibles dans le commerce et elles doivent donc être fabriquées spécialement pour cette application. Such cartridges are not commercially available and must be specifically manufactured for this application. De plus, à la sortie des cartouches, les composants suivent des trajets distincts et ne commencent à se mélanger que dans la branche centrale de la buse en Y. In addition, the output of cartridges, components follow separate paths and begin to mingle in the central branch of the nozzle Y

Une telle buse n'assure donc qu'un mélange imparfait et comporte une portion importante de sa longueur qui n'intervient pas dans l'opération du mélange. Such a nozzle thus provides an imperfect and mixture comprises a substantial portion of its length which is not involved in the operation of the mixture.

La présente invention propose un dispositif pour l'application d'au moins deux composants, qui utilise des cartouches simples, de forme courante et qui assure un bon mélange des composants dès la sortie des cartouches. The present invention provides a device for the application of at least two components, which uses simple cartridges, common and that provides good mixing of the components right out of the cartridges. Elle concerne à cet effet un dispositif du type comprenant au moins deux cartouches coaxiales remplies chacune de lsun des composants, ouvertes à une extrémité et fermées à l'aux tre extrémité par un fond pourvu d'une buse centrale de sortIe, un piston central et un piston annulaire montés coulissants avec étanchéité respectivement à l'intérieur de la cartouche interne et de la chambre tubulaire définie entre les deux cartouches, et un mécanisme d'entrainement desdits pistons,dispositif caractérisé en ce que la buse de sortie de la cartouche externe est de plus grand diamètre et coaxiale à celle de la cartouche interne, un élément creux d'espacement étant prévu pour ménager entre les deux fonds des cartouches un trajet radial reliant ladite chambre tubulaire et la buse de sortie de la cartouche externe. It relates for that purpose a device of the type comprising at least two coaxial cartridges each filled components lsun, open at one end and closed at the end by a bottom be provided with a central nozzle outlet, and a central piston an annular piston slidably mounted in sealed respectively within the inner cartridge and the tubular chamber defined between the two cartridges, and a drive of said piston mechanism, device characterized in that the output of the outer cartridge nozzle is larger diameter and coaxial with that of the inner cartridge, a hollow spacer member being designed to be struck between the two bottoms of the cartridges a radial path connecting said tubular chamber and the outlet nozzle of the outer cartridge.

De telles cartouches ont l'avantage d'être disponibles dans le commerce. Such cartridges have the advantage of being commercially available. De plus, elles permettent aux composants de se mélanger dès leur sortie des buses. In addition, they allow components to mix right out of the nozzles.

Selon un mode de réalisation particulier de ltinven- tion, ledit mécanisme d'entralement comprend une première tige terminée à une extrémité par un poussoir destiné à s'appuyer contre le piston central de la cartouche interne, au moins deux secondes tiges parallèles entre elles et fixées par une extrémité en deux points diamétralement opposés d'un poussoir annulaire destiné à s'appuyer sur le piston annulaire de la cartouche externe, lesdites première et seconde tiges étant reliées entre elles par leur autre extrémité par un élément transversal de solidarisation, et une gachet- te agissant sur l'une desdites tiges de manière à faire avancer l'ensemble des deux pistons chaque fois mulon appuie sur la gâchette. According to a particular embodiment of ltinven- tion, said entralement mechanism comprises a first stem terminating at one end with a pusher intended to rest against the central piston of the inner cartridge, at least two second parallel rods therebetween and fixed at one end in two diametrically opposite points of an annular pusher intended to rest against the annular piston of the outer cartridge, said first and second rods being connected by their other end by a transverse element for securing, and gachet- you acting on one of said rods so as to move the set of two pistons each time mulon pulls the trigger.

Un mode de réalisation de l'invention sera décrit à présent en regard des dessins annexés dans lesquels: An embodiment of the invention will now be described with reference to the accompanying drawings in which:
La figure 1 est une vue en perspective avec arrachement partiel du dispositif selon un mode de réalisation de 1 invention; Figure 1 is a partially cut away perspective view of the device according to an embodiment of one invention;
La figure 2 est une vue en coupe axiale partielle du dispositif de la figure 1; Figure 2 is a fragmentary axial sectional view of the Figure 1 device;
La figure 3 est une vue en perspective éclatée des cartouches interne et externe; Figure 3 is an exploded perspective view of the inner and outer cartridges;
La figure 4 est une vue du mélangeur statique de la figure 2 et que l'on suppose développé sur un plan; FIG 4 is a view of the static mixer of Fig 2 and it is assumed developed on a plane; et and
La figure 5 est une vue en coupe suivant la ligne Figure 5 is a sectional view along line
VV de la figure 2. VV of Figure 2.

La description qui va suivre sera faite dans le cas du mélange de deux composants, mais il est évident que le principe de linvention s'applique aussi bien au cas du mélange de plus de deux composants. The following description will be made in the case of mixing two components, but it is clear that the principle of linvention applies equally to the case of more than two-component mixture.

Avec référence aux figures 1 et 2, le dispositif selon l'invention comprend une cartouche cylindrique interne 10 ouverte à une extrémité et fermée à l'autre extrémité par un fond 12 pourvu d'un orifice de sortie en forme de buse 14 et une cartouche coaxiale externe 16 de diamètre supérieur à celui de la cartouche 10, ouverte à une extrémité et fermée à l'autre extrémité par un fond 18, et pourvue d'un orifice en forme de buse 20, coaxiale à la buse de sortie 14. With reference to Figures 1 and 2, the device according to the invention comprises an internal cylindrical cartridge 10 open at one end and closed at the other end by a bottom 12 provided with a nozzle-shaped outlet 14 and a cartridge coaxial external 16 diameter greater than that of the cartridge 10, open at one end and closed at the other end by a bottom 18 and provided with a shaped orifice nozzle 20, coaxial with the outlet nozzle 14.

Les cartouches sont destinées à recevoir des composants liquides ou pâteux, par exemple des mastics, colles ou graisses, destinés à réagir entre eux juste au moment de l'application. The cartridges are designed to receive liquid or pasty components, for example sealants, adhesives or fats, intended to react them just at the time of application. Un premier composant remplit tout le volume interne de la cartouche 10, tandis qu'un second composant remplit la chambre tubulaire 38 ménagée entre les cartouches 10 et 16. Bien entendu, l'évidement 24 peut avoir toute autre forme, par exemple en spirale, qui permette au composant contenu dans la chambre 38 de s'écouler vers la buse 20. Dans les cartouches 10 et 16 sont adaptés avec étanchéité, respectivement, un piston central 39 et un piston annulaire 41. A first component fills the entire internal volume of the cartridge 10, while a second component fills the tubular chamber 38 provided between the cartridges 10 and 16. Of course, the recess 24 may have any other shape, for example spiral, that allows the component contained in the chamber 38 to flow to the nozzle 20. in the cartridges 10 and 16 are adapted sealed, respectively, a central piston 39 and an annular piston 41.

Autour de la buse 14 est fixée, par tout moyen approprié, une bride plate circulaire 22, de diamètre égal au diamètre interne de la cartouche 16, de sorte que sa portion périphérique est en saillie par rapport à la paroi externe de la cartouche 10. Cette portion en saillie sert notamment à maintenir la coaxialité entre les cartouches à l'extrémité de sortie. Around the nozzle 14 is fixed by any appropriate means, a flat circular flange 22, of diameter equal to the internal diameter of the cartridge 16 so that its peripheral portion is protruding relative to the external wall of cartridge 10. this projecting portion serves in particular to maintain the coaxiality between the cartridges at the exit end. La bride 22 présente sur sa face externe un évidement allongé 24 intéressant seulement une fraction de son épaisseur. The flange 22 has on its external face an elongated recess 24 interesting only a fraction of its thickness. Comme le montrent les figures 2 et 3, cet évidement présente deux portions radiales 26, 28 aboutissant au voisinage de la périphérie de la bride et se raccordant tangentiellement à une portion circulaire 30 située autour du centre de la bride 22. Aux extrémités des évidements radiaux, la bride est percée de part en part par deux trous 32, 34.La bride 22 présente en son centre un orifice traversé par la buse 14 de la cartouche centrale. As shown in Figures 2 and 3, this recess has two radial portions 26, 28 terminating in the vicinity of the periphery of the flange and tangentially to a circular portion 30 around the center of the flange 22. At the ends of radial recesses the flange is pierced through by two holes 32, 34.La flange 22 has at its center an aperture through which the nozzle 14 of the central cartridge.

Sur la buse 20 est adapté un injecteur tubulaire 40 dans lequel est logé un mélangeur statique 42 constitué par une pièce cylindrique pourvue d'un pas de vis à gauche et d'un pas de vis à droite. On the nozzle 20 is adapted a tubular nozzle 40 which houses a static mixer 42 consists of a cylindrical part provided with a thread to the left and one step right screws. Dans l'exemple illustré aux figures 2, 4 et 5, le mélangeur comporte trois filets à gauche et trois filets à droite, mais il pourrait en comporter un nombre supérieur à trois. In the example shown in Figures 2, 4 and 5, the mixer has three goals and three goals left to right, but it could have a number greater than three. Les rainures 41, 43 comprises entre les filets se croisent plusieurs fois, de sorte que les composants sortant par les buses 14 et 20 subissent un brassage énergique aux différents points de croisement 45 des rainures et qu'à la sortie du mélangeur on obtient un mélange homogène des deux composants. The grooves 41, 43 between the threads cross each other repeatedly, so that the components leaving through the nozzles 14 and 20 undergo a vigorous mixing the various crossing points 45 of the grooves and at the outlet of the mixer is obtained a mixture homogeneous the two components.

La longueur du mélangeur et le nombre de ses filets seront calculés en fonction de la viscosité des composants. Mixer length and the number of threads will be calculated depending on the viscosity of the components.

On pourra utiliser plusieurs mélangeurs disposés bout à bout avec éventuellement des entretoises de séparation. Can be used several mixers arranged end to end possibly with spacers separating.

La figure 1 montre un mode de réalisation particulier d'un pistolet destiné à éjecter ledit mélange. Figure 1 shows a particular embodiment of a nozzle for ejecting said mixture. On trouvera une description détaillée du mécanisme d'avance de ce pistolet dans la demande de brevet français nO 79 07 311 au nom du Demandeur. A detailed description of the gun advance mechanism in the French patent application 79 nO 07,311 on behalf of the Applicant. Dans ce qui suit, on ne décrira en-détail que les éléments nouveaux du pistolet. In the following, will be described in detail-that the new elements of the gun.

Le pistolet comprend un tube 44 destiné à recevoir les cartouches 10, 16. Le tube est fermé à son extrémité avant part un couvercle amovible 46 et son extrémité arrière est vissée dans une coupelle 48, sur le fond de laquelle est fixée, par exemple par soudage, une poignée de préhension 50 en forme d'étrier. The gun includes a tube 44 for receiving cartridges 10, 16. The tube is closed at its front end portion a removable cover 46 and its rear end is screwed into a cup 48, on the bottom of which is fixed, for example by welding, a handle 50 bow-shaped. Une tige à crémaillère 52 orientée selon lwaxe du tube 44 traverse avec jeu un trou 54 percé au centre du fond de la coupelle 48 et un trou 56 percé sur l'âme de la poignée et aligné avec le trou 54. La tige 52 porte à son extrémité intérieure au tube, un poussoir central 58 destiné -i s'appuyer contre le piston central 39. A rack rod 52 oriented along lwaxe the tube 44 passes with clearance through a hole 54 drilled into the center of the cup 48 and a hole 56 bored on the core of the handle and aligned with the hole 54. The rod 52 carries at its inner end to the tube, a center tappet 58 -i intended to bear against the central piston 39.

Le fond de la coupelle est percé de deux autres orifices auquels sont adaptés deux manchons tubulaires 60, 62. The bottom of the cup is pierced by two orifices are adapted auquels two tubular sleeves 60, 62.

Dans ces manchons sont montées coulissantes deux tiges 64, 66 parallèles à la crémaillère 52. Les extrémités des tiges 64, 66 intérieures au tube 44 sont fixées en deux points diamétralement opposés d'un poussoir annulaire 68 destiné à prendre appui sur le piston annulaire 41. In these sleeves are slidably mounted two rods 64, 66 parallel to the rack 52. The ends of the rods 64, 66 to the inner tube 44 are fixed at two diametrically opposite points of an annular pusher 68 intended to bear against the annular piston 41 .

Les tiges 64, 66 et la crémaillère 52 sont solidarisées en translation au moyen d'un axe transversal 70 reliant leurs extrémités extérieures au tube 44. La crémaillère traverse avec jeu un trou transversal 72 percé à travers l'axe 70 et porte, de part et d'autre dudit trou, deux bagues 74, 75 s'opposant au coulissement de la crémaillère seule, mais autorisant la rotation de celle-ci autour de son axe. The rods 64, 66 and the rack 52 are secured in translation by means of a transverse axis 70 between their outer ends to the tube 44. The rack passes with clearance through a transverse hole 72 drilled through the axis 70 and carries, on either side of said hole, two rings 74, 75 opposing the sliding of the rack alone, but allowing rotation thereof about its axis. A son extrémité libre, la crémaillère présente une poignée 76 par laquelle elle peut être tournée. At its free end, the rack comprises a handle 76 by which it can be rotated.

Les deux poussoirs 58, 68 peuvent être entraînés au moyen d'un mécanisme connu en soi, comprenant une gâchette 78, un cliquet d'avance et un criquet anti-retour, non représentés, coopérant avec la denture de la crémaillère. The two pushers 58, 68 can be driven by means of a per se known mechanism comprising a trigger 78, a feed pawl and a non-return locusts, not shown, cooperating with the toothing of the rack.

Le montage du dispositif selon ce mode de réalisation est le suivant: Mounting the device according to this embodiment is as follows:
On tourne la crémaillère 52 d'un demi-tour par rapport à la position qu'elle a sur la figure 1, de manière à dégager les cliquets de la denture de la crémaillère, puis on tire à fond vers la droite sur la figure 1 l'équipage mobile qui comprend la crémaillère 52 et les tiges 64, 66. Turning the rack 52 of a U-turn relative to the position it had in Figure 1, so as to disengage the pawls from the teeth of the rack, then bottom is pulled to the right in Figure 1 the mobile assembly which includes the rack 52 and the rods 64, 66.

On retire le couvercle 46 et l'on introduit ensuite dans le tube 44 de nouvelles cartouches coaxiales 10, 16. On adapte sur la buse 20 de la cartouche 16 l'injecteur 40 équipé de son mélangeur statique, puis on ferme le tube avec son couvercle 46. Les cartouches sont alors fermement maintenues contre tout déplacement et le dispositif est prêt à être utilisé. Removing the cover 46 and is then introduced into the tube 44 coaxial new cartridges 10, 16. It fits over the nozzle 20 of the cartridge 16, the injector 40 equipped with a static mixer, then the tube is closed with its lid 46. the cartridges are then firmly held against displacement and the device is ready for use.

A chaque actionnement de la gâchette, les poussoirs 58, 68 avancent d'une course prédéterminée, expulsant à travers les buses 14 et 20 des doses de composants qui sont ensuite mélangées dans le mélangeur statique 42. Each actuation of the trigger, the pushers 58, 68 advance a predetermined stroke, expelling through the nozzles 14 and 20 doses of components which are then mixed in the static mixer 42.

Avantageusement, la poignée 50 et la gâchette 78 du pistolet se raccordent sans discontinuité par des portions arrondies 80, 82, de sorte que l'on ne risque pas de se pincer la main lorsqu'on presse la gâchette. Advantageously, the handle 50 and the trigger 78 of the gun are connected without discontinuity by rounded portions 80, 82, so that there is no risk of pinching the hand when the press trigger.

Le remplacement des cartouches pourra se faire soit par l'avant du tube 44, après retrait du couvercle 46, soit par l'arrière après dévissage du tube 44. Replacement of cartridges can be done either from the front of tube 44 after removal of the lid 46 or by the rear after unscrewing the tube 44.

Le pistolet qui vient d'être décrit utilise un mécanisme d'avance à cliquets et crémaillère, mais on pourrait aussi bien utiliser un mécanisme d'avance par friction bien connu en soi. The gun has just been described uses a ratchet advance mechanism and rack, but we might as well use a friction feed mechanism known in itself.

Les quantités volumiques des composants dans le mélange sont évidemment respectivement proportionnelles aux sections de la cartouche 10 et de la chambre annulaire 38, Par exemple, pour obtenir un mélange équivolumique, on choisira des cartouches 10 et 16 de diamètres intérieurs respectifs 2 et 2 2 d et D tels que: D = d + (d + 2e), e étant l'épaisseur de la cartouche interne. The volume amounts of the components in the mixture are obviously respectively proportional to the sections 10 and of the annular chamber cartridge 38, For example, to obtain a mixture of equal volumes, one will select 10 and 16 cartridges of respective inner diameters 2 and 2 2 d and D such that: D = d + (d + 2e), e being the thickness of the inner cartridge.

Comme on le sait, lorsque deux composants de viscosités différentes s'écoulent dans un même conduit, le composant le plus visqueux a une tendance naturelle à circuler au centre du conduit alors que le composant le moins visqueux s'écoule contre les parois du conduit. As is known, when two components of different viscosities flows in the same conduit, the more viscous component has a natural tendency to flow in the center of the duct so that the less viscous component flows against the duct walls. En conditionnant le composant le plus visqueux dans la cartouche 16 de plus grand diamètre et le composant le moins visqueux dans la cartouche 10 de plus petit diamètre, on établit dans ltin- jecteur 40 une disposition des composants inverse de la disposition naturelle. By conditioning the most viscous component in the cartridge 16 of larger diameter and the less viscous component into the cartridge 10 of smaller diameter, is established in ltin- ejector 40 an arrangement of the reverse components of the natural disposition. Etant donné que les composants ont tendance à reprendre leur disposition naturelle, il se produit un pré-mélange avant le passage des composants dans le mélangeur statique. Given that the components tend to resume their natural disposition, there is a pre-mixture before the components pass through the static mixer. On notera qu'un tel mélange ne peut se produire dans les dispositifs connus mentionnés précédemment, comportant des sorties de buses décaléesaxialement. It will be appreciated that such a mixture can occur in the aforementioned known devices, having nozzle outlets décaléesaxialement.

Avantageusement, on pourrait prévoir à la sortie des buses 14 et 20 des clapets anti-retour qui s'ouvrent lorsque les composants sont extrudés, mais qui obturent les buses lorsqu'il se crée une dépression dans les cartouches, par exemple lorsquton fait reculer l'équipage mobile. Advantageously, it could be provided at the exit of the nozzles 14 and 20 of check valves that open when the components are extruded, but which block the nozzles when it creates a vacuum in the cartridges, for example lorsquton set back the moving element. On évite ainsi que les composants se trouvant dans l'injecteur 40 et qui ont déjà subi un pré-mélange ou même un mélange, ne soient aspirés dans les cartouches. This prevents the components in the injector 40 and which have already undergone a pre-mix, or even a mixture, from being sucked into the cartridge.

Claims (13)

    REVENDICATIONS
  1. 1.- Dispositif pour l'application d'un mélange d'au moins deux composants liquides ou pâteux, du type comprenant au moins deux cartouches coaxiales remplies chacune de l'un des composants, ouvertes à une extrémité et fermées à l'autre extrémité par un fond pourvu d'une buse centrale de sortie, un piston central et un piston annulaire montés coulissants avec étanchéité respectivement à l'intérieur de la cartouche interne et de la chambre tubulaire définie entre les deux cartouches, et un mécanisme d'entraînement desdits pistons, caractérisé en ce que la buse de sortie 20 de la cartouche externe 16 est de plus grand diamètre et coaxiale à celle 14 de la cartouche interne 10, un élément creux d'espacement 22 étant prévu pour ménager, entre les deux fonds 12, 18 des cartouches ,un trajet radial 26, 28 reliant ladite chambre tubulaire 38 et la buse de sortie 20 de la cartouche externe. 1.- A device for applying a mixture of at least two liquid or pasty components of the type comprising at least two coaxial cartridges each filled with one of the components, open at one end and closed at the other end by a bottom provided with a central outlet nozzle, a central piston and an annular piston slidably mounted with sealing on the inside respectively of the inner cartridge and the tubular chamber defined between the two cartridges, and a drive mechanism of said pistons, characterized in that the outlet nozzle 20 of the outer cartridge 16 is of larger diameter and coaxial to that 14 of the inner cartridge 10, a hollow spacer 22 is provided to spare, between the two bottoms 12, 18 cartridges, a radial path 26, 28 connecting said tubular chamber 38 and the outlet nozzle 20 of the outer cartridge.
  2. 2.- Dispositif selon la revendication 1, caractérisé en ce que ledit élément creux d'espacement est constitué par une bride plate 22 de section sensiblement égale à la section interne de la cartouche externe 16 et présentant en son centre un orifice pour le passage de la buse de sortie 14 de la cartouche interne, ledit élément d'espacement comportant, sur sa face tournée vers le fond 18 de la cartouche externe 16, un évidement central 30 entourant la buse 14 et relié, par un canal percé dans l'épaisseur de la bride, à au moins un orifice de la bride débouchant dans la chambre tubulaire 38 comprise entre les cartouches 10 et 16. 2.- Device according to claim 1, characterized in that said hollow spacing member is formed by a flat flange 22 of section substantially equal to the internal section of the outer cartridge 16 and having in its center a hole for the passage of the outlet nozzle 14 of the inner cartridge, said spacer member having, on its face turned towards the bottom 18 of the outer cartridge 16, a central recess 30 surrounding the nozzle 14 and connected by a channel drilled in the thickness of the flange, at least one orifice in the flange opens into the tubular chamber 38 between the cartridges 10 and 16.
  3. 3.- Dispositif selon la revendication 2, caractérisé en ce que le ou les canaux 26, 28 se raccordent tangentiellement à l'évidement central 30. 3.- Device according to claim 2, characterized in that the channel or channels 26, 28 join tangentially to the central recess 30.
  4. 4.- Dispositif selon l'une des revendications 2 et 3, caractérisé en ce que les canaux 26, 28 sont formés sur la face de la bride qui est tournée vers le fond 18 de la cartouche externe et leur profondeur n'intéresse qu'une partie de l'épaisseur de ladite bride 22. 4.- Device according to one of claims 2 and 3, characterized in that the channels 26, 28 are formed on the face of the flange which faces the bottom 18 of the outer cartridge and their depth is of interest that a portion of the thickness of said flange 22.
  5. 5.- Dispositif selon l'une des revendications précédentes, caractérisé en ce que la bride 22 est fixée par tout moyen approprié sur la buse 14 de la cartouche interne 10, par exemple par emmanchement, vissage ou collage. 5.- Device according to one of the preceding claims, characterized in that the flange 22 is fixed by any appropriate means on the nozzle 14 of the inner cartridge 10, for example by fitting, screwing or gluing.
  6. 6.- Dispositif selon la revendication 1, caractérisé en ce que ledit mécanisme d'entratnement comprend une première tige 52 portant à une extrémité un poussoir 5 destiné à s'appuyer sur le piston central 39, au moins deux secondes tiges 64, 66 parallèles à la première tige et fixées par une extrémité en deux points diamétralement opposés d'un poussoir annulaire 68, destiné à prendre appui sur le piston annulaire 41, lesdites première et seconde tiges étant reliées entre elles,par leur autre extrémité, par une barre transversale de solidarisation 70, L'équipage mobile constitué par les poussoirs et les tiges étant en trainé vers l'avant par la gâchette 78 d'un pistolet, laquelle coopère avec l'une desdites tiges, des moyens anti-recul étant prévus pour s'opposer au recul de l'équipage mobile lorsque la gâchette est relâchée. 6.- Device according to claim 1, characterized in that said entratnement mechanism comprises a first rod 52 carrying at one end a plunger 5 designed to bear on the central piston 39, at least two second rods 64, 66 parallel to the first rod and fixed at one end in two diametrically opposite points of an annular plunger 68, intended to bear against the annular piston 41, said first and second rods being interconnected at their other end by a crossbar of fastening 70, the mobile assembly consisting of the pushers and the rods being dragged forward by the trigger 78 of a gun, which cooperates with one of said rods, backstop means being provided for s' oppose the recoil of the mobile assembly when the trigger is released.
  7. 7.- Dispositif selon l'une des revendications précédentes, caractérisé en ce que le pistolet est du type à crémaillère, la denture de crémaillère étant formée sur la tige 52 portant le poussoir central 58, et en ce que cette dernière est solidaire en translation avec la barre de solidarisation 70, mais peut tourner par rapport àieile. 7.- Device according to one of the preceding claims, characterized in that the gun is of the rack type, rack teeth being formed on the rod 52 with the center tappet 58, and in that it is integral in translation with the connecting bar 70, but is rotatable relative àieile.
  8. 8.- Dispositif selon la revendication 7, caractérisé en ce que la tige 52 portant le poussoir central traverse avec jeu un trou 72 percé à travers ladite barre de solidarisation 70 et porte, de part et d'autre dudit trou, deux bagues fixes 74, 75 s'opposant au mouvement de translation de la tige portant le poussoir central. 8.- Device according to claim 7, characterized in that the shaft 52 carrying the center tappet passes with clearance through a hole 72 drilled through said fastening bar 70 and carries, on either side of said hole, two fixed rings 74 , 75 opposing the translational movement of the rod carrying the center tappet.
  9. 9.- Dispositif selon la revendication 8, caractérisé en ce que la tige 52 portant le poussoir central se termine par une portion de préhension 76 par laquellé on peut faire pivoter ladite tige pour la désolidariser des cliquets. 9.- Device according to claim 8, characterized in that the shaft 52 carrying the center tappet ends with a grip portion 76 by which to rotate said rod to disengage the detents.
  10. 10.- Dispositif selon l'une des revendications 1 à ó, caractérisé en ce que le pistolet est du type à friction, comprenant une gâchette qui agit sur au moins une première plaquette de friction enfilée autour de la tige portant le poussoir central, de façon à déplacer l'équipage mobile vers taxant, et une seconde plaquette de friction également enfilée autour de ladite tige et s'opposant au recul de l'équipage mobile. 10.- Device according to one of claims 1 to ó, characterized in that the gun is of the friction type, comprising a trigger which acts on at least a first friction pad fitted around the rod carrying the center tappet, of so as to move the moving element to taxing, and a second friction pad also fitted around said rod and opposing the recoil of the moving equipment.
  11. 11.- Dispositif selon l'une des revendications 6 à 10, caractérisé en ce que la poignée 50 et la gâchette 78 du pistolet se raccordent sans discontinuité par des portions arrondies 80, 82. 11.- Device according to one of claims 6 to 10, characterized in that the handle 50 and the trigger 78 of the gun are connected without discontinuity by rounded portions 80, 82.
  12. 12.- Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un mélan geur statique logé dans un injecteur tubulaire 40 qui est adapté autour de la buse de sortie 20 de la cartouche externe 16, ledit mélangeur statique étant constitué par une pièce cylindrique 42 pourvue d'un filetage à gauche et d'un filetage à drie, de sorte que les rainures 41, 43 comprises entre les filets se croisent plusieurs fois et qu'aux poiittsCe croisement 45, les composants sortant des cartouches subissent un mélange énergique. 12.- Device according to one of the preceding claims, characterized in that it comprises a static geur Mélan housed in a tubular nozzle 40 which is fitted around the outlet nozzle 20 of the outer cartridge 16, said static mixer consisting by a cylindrical part 42 provided with a left hand thread and a thread drie, so that the grooves 41, 43 between the threads cross each other repeatedly and club poiittsCe crossing 45, undergo post cartridge components vigorous mixing.
  13. 13.- Dispositif selon l'une des revendications précédentes, caractérisé en ce que des clapets anti-retour Oit éve.-tuellemealt montés dans les buses de sortie 14 et 20 afin d'empêcher la réaspiration des composants se trouvant dans lsinjecteut 40, vers les cartouches 10, 16. 13.- Device according to one of the preceding claims, characterized in that nonreturn valves tuellemealt Olt éve.-mounted in the outlet nozzles 14 and 20 to prevent rebreathing components in lsinjecteut 40, to the cartridges 10, 16.
FR8104213A 1981-03-03 1981-03-03 Two ingredient mixture applicator - has coaxial cartridges each containing liq. or pasty ingredient with coaxial dispensing nozzle Withdrawn FR2501080A1 (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532862A1 (en) * 1982-09-15 1984-03-16 Hilti Ag Portable apparatus for dispensing pastes has several components
EP0213073A1 (en) * 1985-08-12 1987-03-04 Ciba-Geigy Ag Device for mixing and applying liquid or pasty substances
EP0378806A2 (en) * 1989-01-17 1990-07-25 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte Device for mixing and dispensing pasty products
US4949874A (en) * 1987-12-04 1990-08-21 Henkel Kommanditgesellschaft Auf Aktien Device for dispensing at least two flowable substances
EP0436155A2 (en) * 1990-01-05 1991-07-10 Maderag Ag Extrusion gun for double-wall cartridges
EP0472448A2 (en) * 1990-08-23 1992-02-26 Bostik Limited Process and device for combining two pasty materials
WO1993014863A1 (en) * 1992-01-30 1993-08-05 Bostik S.A. Process and appliance for premixing pasty materials
EP0566951A1 (en) * 1992-04-24 1993-10-27 MASCHINENFABRIK HENNECKE GmbH Mixing head for mixing at least two flowable reactive components for making a plastic material
US5295613A (en) * 1991-07-10 1994-03-22 Societe De Prospection Et D'inventions Techniques (S.P.I.T.) Tubular cartridge for storing and applying a non-solid product, and a drive and thrust assembly for the cartridge
WO1995005984A2 (en) * 1993-08-20 1995-03-02 Keller Wilhelm A Multiple component metering and relative proportioning device with collapsible cartridge
ES2072222A2 (en) * 1993-11-18 1995-07-01 Canut Salvador Ribera Apparatus with improved cartridge for applying pasty products
ES2117530A1 (en) * 1995-02-02 1998-08-01 Alcala Fibras Mixer mechanism for manufacturing polyurethane foam
EP0830900A3 (en) * 1996-09-19 1999-03-10 Soraton SA Hand actuated tool
EP1006057A1 (en) * 1998-12-04 2000-06-07 Sika AG, vorm. Kaspar Winkler & Co. Dosage device
WO2000040341A1 (en) * 1998-12-30 2000-07-13 Sulzer Chemtech Ag Ejection device for a cartridge
EP1360997A2 (en) * 2002-05-10 2003-11-12 Giacomo Mealli Device for instant mixing and delivery of bi-components products
WO2007015720A1 (en) * 2005-08-01 2007-02-08 Rich Products Corporation Dispensing device
US7320596B2 (en) * 2002-12-09 2008-01-22 Dentsply International Inc. Cartridge for viscuos dental material
GB2475955A (en) * 2009-11-18 2011-06-08 Martin Richard Housden Hand held dispenser
ES2424895A1 (en) * 2012-04-03 2013-10-09 Salvador Cabeza Sanchez Cartridge masses two-component premixing nozzle.
US8561854B2 (en) 2005-08-01 2013-10-22 Rich Products Corporation Dispensing device for viscous materials
WO2017218952A1 (en) * 2016-06-16 2017-12-21 Sigma Phase, Corp. System for providing a single serving of a frozen confection

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532862A1 (en) * 1982-09-15 1984-03-16 Hilti Ag Portable apparatus for dispensing pastes has several components
EP0213073A1 (en) * 1985-08-12 1987-03-04 Ciba-Geigy Ag Device for mixing and applying liquid or pasty substances
US4690306A (en) * 1985-08-12 1987-09-01 Ciba-Geigy Corporation Dispensing device for storing and applying at least one liquid or pasty substance
US4949874A (en) * 1987-12-04 1990-08-21 Henkel Kommanditgesellschaft Auf Aktien Device for dispensing at least two flowable substances
EP0378806A3 (en) * 1989-01-17 1991-05-15 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte Device for mixing and dispensing pasty products
US5080262A (en) * 1989-01-17 1992-01-14 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Mixing dispenser for pasty masses
EP0378806A2 (en) * 1989-01-17 1990-07-25 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte Device for mixing and dispensing pasty products
US5139171A (en) * 1990-01-05 1992-08-18 Maderag Ag Ejector pistol for double-walled cartridges
EP0436155A2 (en) * 1990-01-05 1991-07-10 Maderag Ag Extrusion gun for double-wall cartridges
EP0436155A3 (en) * 1990-01-05 1991-12-04 Maderag Ag Extrusion gun for double-wall cartridges
EP0472448A3 (en) * 1990-08-23 1992-04-08 Bostik Limited Process and device for combining two pasty materials
EP0472448A2 (en) * 1990-08-23 1992-02-26 Bostik Limited Process and device for combining two pasty materials
US5295613A (en) * 1991-07-10 1994-03-22 Societe De Prospection Et D'inventions Techniques (S.P.I.T.) Tubular cartridge for storing and applying a non-solid product, and a drive and thrust assembly for the cartridge
US5339992A (en) * 1991-07-10 1994-08-23 Societe De Prospection Et D'inventions Techniques (S.P.I.T. Tubular cartridge for storing and applying a non-solid product, and a drive and thrust assembly for the cartridge
WO1993014863A1 (en) * 1992-01-30 1993-08-05 Bostik S.A. Process and appliance for premixing pasty materials
EP0566951A1 (en) * 1992-04-24 1993-10-27 MASCHINENFABRIK HENNECKE GmbH Mixing head for mixing at least two flowable reactive components for making a plastic material
US5312596A (en) * 1992-04-24 1994-05-17 Maschinenfabrik Hennecke Gmbh Mixhead for mixing at least two free-flowing reaction components
WO1995005984A2 (en) * 1993-08-20 1995-03-02 Keller Wilhelm A Multiple component metering and relative proportioning device with collapsible cartridge
US5647510A (en) * 1993-08-20 1997-07-15 Keller; Wilhelm A. Multiple component metering and relative proportioning device with collapsible cartridge
WO1995005984A3 (en) * 1993-08-20 1995-04-20 Wilhelm A Keller Multiple component metering and relative proportioning device with collapsible cartridge
ES2072222A2 (en) * 1993-11-18 1995-07-01 Canut Salvador Ribera Apparatus with improved cartridge for applying pasty products
ES2117530A1 (en) * 1995-02-02 1998-08-01 Alcala Fibras Mixer mechanism for manufacturing polyurethane foam
EP0830900A3 (en) * 1996-09-19 1999-03-10 Soraton SA Hand actuated tool
EP1006057A1 (en) * 1998-12-04 2000-06-07 Sika AG, vorm. Kaspar Winkler & Co. Dosage device
WO2000040341A1 (en) * 1998-12-30 2000-07-13 Sulzer Chemtech Ag Ejection device for a cartridge
EP1360997A2 (en) * 2002-05-10 2003-11-12 Giacomo Mealli Device for instant mixing and delivery of bi-components products
EP1360997A3 (en) * 2002-05-10 2006-05-31 Giacomo Mealli Device for instant mixing and delivery of bi-components products
US7320596B2 (en) * 2002-12-09 2008-01-22 Dentsply International Inc. Cartridge for viscuos dental material
WO2007015720A1 (en) * 2005-08-01 2007-02-08 Rich Products Corporation Dispensing device
US8297481B2 (en) 2005-08-01 2012-10-30 Rich Products Corporation Dispensing device
US8561854B2 (en) 2005-08-01 2013-10-22 Rich Products Corporation Dispensing device for viscous materials
US8870035B2 (en) 2005-08-01 2014-10-28 Rich Products Corporation Dispensing device
GB2475955A (en) * 2009-11-18 2011-06-08 Martin Richard Housden Hand held dispenser
GB2475955B (en) * 2009-11-18 2012-08-08 Martin Richard Housden Dispenser
ES2424895A1 (en) * 2012-04-03 2013-10-09 Salvador Cabeza Sanchez Cartridge masses two-component premixing nozzle.
WO2017218952A1 (en) * 2016-06-16 2017-12-21 Sigma Phase, Corp. System for providing a single serving of a frozen confection

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