EP2353733B1 - Poussoir coupant - Google Patents

Poussoir coupant Download PDF

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Publication number
EP2353733B1
EP2353733B1 EP20100151767 EP10151767A EP2353733B1 EP 2353733 B1 EP2353733 B1 EP 2353733B1 EP 20100151767 EP20100151767 EP 20100151767 EP 10151767 A EP10151767 A EP 10151767A EP 2353733 B1 EP2353733 B1 EP 2353733B1
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EP
European Patent Office
Prior art keywords
dispensing
cutting
receiving space
press
material receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20100151767
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German (de)
English (en)
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EP2353733A1 (fr
Inventor
Rolf Höse
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Individual
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Individual
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Priority to EP20100151767 priority Critical patent/EP2353733B1/fr
Publication of EP2353733A1 publication Critical patent/EP2353733A1/fr
Application granted granted Critical
Publication of EP2353733B1 publication Critical patent/EP2353733B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand 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
    • B05C17/005—Hand 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
    • B05C17/01—Hand 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
    • B05C17/0106—Hand 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 with means for longitudinally cutting container walls during relative displacement of the piston and its cooperating container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand 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
    • B05C17/005—Hand 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
    • B05C17/00553—Hand 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
    • B05C17/00559—Hand 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

Definitions

  • the present invention relates to a plunger for dispensing materials from a coaxial cartridge by means of a dispensing device, comprising: a head part having at least one outer pressure element for moving an outer dispensing piston and at least one inner pressure element for moving an inner dispensing piston, wherein the outer pressure element with the inner pressure element connected is; and a cutting tool having at least one cutting element having a cutting edge for cutting an intermediate wall separating an outer material receiving space from an inner material receiving space.
  • the invention relates to a dispensing apparatus, comprising: a coaxial cartridge having an outer material receiving space for receiving a first material component and an inner material receiving space for receiving a second material component, which are separated by an intermediate wall; at least one outer dispensing piston movably disposed for dispensing the first material component from the outer material receiving space; and at least one inner dispensing piston movably disposed for dispensing the second material component from the inner material receiving space.
  • the invention relates to a method for dispensing materials from a coaxial cartridge by means of a dispenser, comprising the steps of: a) moving a plunger to simultaneously move at least one outer dispensing piston and at least one inner dispensing piston to expel a first material component from an outer material receiving space Coaxial cartridge and a second material component from an inner material receiving space of the coaxial cartridge; and b) cutting the intermediate wall separating the outer material receiving space of the coaxial cartridge and the inner material receiving space of the coaxial cartridge by the movement of the push rod.
  • two-component adhesives are provided in disposable cartridges.
  • the spreading takes place by means of two pistons. Since the components have to be ejected from the cartridge at the same time and in a certain predetermined mixing ratio, the two pistons must be moved synchronously. This can be complicated by different consistency and viscosity of the masses.
  • dispensing guns have been developed for such applications, which can be comfortably operated by non-professional users.
  • the interconnected via webs pistons are actuated simultaneously via a piston rod.
  • the arranged between the chambers partitions that impede the depression of the piston can be cut by suitable, arranged on the webs cutting tools.
  • the object of the present invention is to provide a dispensing device and a method for dispensing a mixture of a multi-component cartridge, which ensure a trouble-free dosing of several material components.
  • a plunger according to the invention for dispensing materials from a coaxial cartridge by means of a dispensing apparatus comprises: a head portion having at least one outer pressure member for moving an outer dispensing piston and at least one inner pressure member for moving an inner dispensing piston, wherein the outer pressure member is connected to the inner pressure member, and a cutting tool with at least one cutting element the a cutting edge for cutting an intermediate wall which separates an outer material receiving space from an inner material receiving space, wherein the cutting tool is formed such that a cut in the form of a helix is produced when the intermediate wall is cut open.
  • the coaxial cartridge has two or more material receiving spaces arranged coaxially with one another, wherein the inner material receiving space is generally cylindrical, and the outer material receiving space having an annular base area is formed.
  • the material receiving spaces are separated by the intermediate wall.
  • a cutting tool which lies in the region between the outer pressure element and the inner pressure element and cuts the intermediate wall during a longitudinal movement of the print head along the intermediate wall.
  • Cartridges with such cutting tools are also called Peeler cartridges.
  • Behind the cutting elements or the connection between the printing elements can also be moved in the region of the intermediate wall along this or through the cut area.
  • the cut material may be collected behind the cutting element (s), for example, in a collecting space located in the header prior to connection.
  • the strip can be wound behind the cutting element or elements like a flat spiral.
  • the helical section has the shape of a helix or a cylindrical spiral or helix.
  • the cut can also be referred to as a helical or as a cut in the form of a helix.
  • the cut winds at a constant pitch in the mantle of the cylindrical partition wall.
  • the at least one cutting element is arranged obliquely at an angle ⁇ relative to the direction of movement of the outer dispensing piston and the inner dispensing piston.
  • the angle can be about 45 °.
  • all suitable oblique angles greater than 0 ° and less than 90 ° can be set.
  • angles between 15 ° and 75 ° or between 30 ° and 60 ° are angles between 15 ° and 75 ° or between 30 ° and 60 °.
  • the angle determines the pitch or steepness of the helical section. On the one hand, this can set the required force for cutting the intermediate wall.
  • the angle of attack determines the width of the spiral strip end. The greater the inclination relative to the axial plane (ie a plane in which the longitudinal axis of the Coaxial cartridge is), the narrower the strip. Due to the inclination of the helical cut is generated.
  • the head part has at least one space for collecting the cut-up intermediate wall.
  • the room is located behind the cutting elements.
  • the collecting can be done, for example, by a helical rolling of the cut material.
  • the space may have a rear wall which is arranged in the area behind the cutting element.
  • the wall can also be the connection between the printing elements.
  • At least one deflecting element can be provided which deflects the material of the cut-open dividing wall in such a way that it rolls up in a spiral manner within the space for collecting.
  • the plunger has a connection, in particular a rigid connection, between the outer pressure element and the inner pressure element.
  • the at least one cutting element can be connected between the outer pressure element and the inner pressure element, for. B. in the range of movement of the compound, be arranged to cut the arranged between the outer material receiving space and the inner material receiving space intermediate wall helically.
  • the cutting element may extend from the body of the pressure body so that it protrudes (in the dispensing direction before the connection) in the region of the intermediate wall, so that it intersects with a movement of the pressure plunger along the longitudinal axis of the cartridge. If two or more cutting elements are provided, they may be arranged diametrically opposite. They may, for example, lie opposite one another and / or extend radially outward from the inner pressure element.
  • the inclination with respect to an axial plane is preferably the same size and in the same direction in or counterclockwise.
  • the at least one cutting element can also be arranged at the connection between the pressure elements.
  • the cutting tool is arranged in particular relative to the direction of movement of the pressure plunger behind the contact surface of the inner pressure element and / or the outer pressure element and / or the connection between the pressure elements.
  • An application device comprising: a coaxial cartridge having an outer material receiving space for receiving a first material component and an inner material receiving space for receiving a second material component, which are separated by an intermediate wall; at least one outer dispensing piston movably disposed for dispensing the first material component from the outer material receiving space; and at least one inner dispensing piston moveably disposed for dispensing the second material component from the inner material receiving space, the dispensing device comprising a pushrod according to one of the preceding claims.
  • the dispensing device preferably has an actuating element, the actuation of which moves the pressure ram, which moves the outer dispensing piston and the inner dispensing piston in a direction A.
  • the direction A corresponds to the longitudinal axis of the coaxial cartridge. The movement is to reduce the volume of the material receiving spaces.
  • the plunger may, in addition to the head part, have a rod which is moved in the direction A by a transmission or actuating mechanism when the actuating element is actuated.
  • the direction or axis A corresponds to the dispensing direction or the direction of movement of the dispensing piston.
  • the push rod may preferably be arranged or mounted to be rotatable about an axis A relative to the intermediate wall of the coaxial cartridge.
  • the dispensing device can be designed as a metering gun.
  • the actuating element is preferably designed as a trigger of a pistol. The goal is to provide an easy-to-use handheld device.
  • the dispensing device may have a guide device for guiding the pressure ram along the longitudinal axis of the cartridge.
  • the rod of the plunger can be guided.
  • the pressure elements may be connected to the delivery piston, d. H.
  • the pressure elements can be integrally formed as a piston.
  • the pistons are interconnected by means of the connection.
  • the intermediate wall is cut helically in step b).
  • the cut-up partition is collected in a dedicated collection room. It can be rolled up spirally in one plane.
  • the applications are not limited. They can be located in the most diverse technical and medical areas. In particular, however, applications using a disposable coaxial cartridge are advantageous.
  • the cutting of the intermediate wall in step b) can be carried out by means of a cutting tool which cuts at least one cut oblique relative to the direction of movement of the discharge piston into the intermediate wall.
  • the cutting tool may rotate during the cutting operation relative to the intermediate wall about the axis of the direction of movement of the delivery piston.
  • the rotation takes place automatically by the movement of the print head.
  • Reason for this is the inclination of the cutting elements.
  • the cutting tool can automatically cut through the intermediate wall by the movement of the plunger.
  • the applied materials react with each other after they come in contact.
  • FIG. 1 shows a view of a metering gun 10, a plunger 20 according to the invention as well as a sectional view of a arranged in the gun 10 coaxial cartridge 30th
  • the metering gun 10 comprises a handle 11 with an actuating element 12.
  • the coaxial cartridge 30 has an outer wall 31, an outer receiving space 32 for receiving a first material component to be applied, and an inner receiving space 33 for receiving a second material component to be applied.
  • the outer receiving space 32 and the inner receiving space 33 are separated by an intermediate wall 34.
  • the first material component can be discharged through a first opening 35, the second material component through a second opening 36 from the cartridge 30.
  • an outer (substantially annular) piston 37 and an inner (substantially circular) piston 38 are urged by the head portion 21 of an application ram 20 at the same time, simultaneously and / or in parallel toward the openings 35 and 36.
  • an actuating rod 22 of the plunger 20 is driven downward in the direction of the openings 35 and 36 by actuation of the actuating element 12 via a transmission mechanism, not shown.
  • the plunger 20 has a print head 21 which is connected to the actuating rod 22.
  • the print head 21 has an outer annular pressure edge 210 for depressing the outer piston 37, and an inner pressure element 211 for depressing the inner piston 38.
  • the outer one Pressure edge 210 is connected to the inner pressure element 211 via a connecting part 212.
  • the outer pressure edge 210 and the connection part 212 define a cavity 213.
  • the cutting tool 214 includes two opposing cutting elements 215 and 216 having cutting edges that extend radially outward from the central pressure element 211.
  • the cutting elements are arranged behind the contact surface of the inner pressure element 211, relative to the extrusion direction.
  • the cutting elements 215 and 216 intersect in the upper edge 39 of the intermediate wall 34 and intersect this when depressing the print head 21 each with a helical (ie oblique) cut. This is achieved by a tilting of the cutting elements 215, 216 with respect to the axial plane E, in the Figures 3 and 4 corresponds to the sheet level. As a result, the cutting elements 215, 216 do not cut in the axial direction A, as in the axial direction A asked cutting elements 215, 216, but obliquely to the axial direction A corresponding to the oblique angle of the cutting elements 215, 216 relative to the axial direction A.
  • the printhead 21 is rotatable relative to the coaxial cartridge 30 arranged the axial direction A, so that the cutting elements 215, 216 can cut obliquely into the wall 34.
  • the helical cuts in the intermediate wall 34 cause the formation of a strip-like wall portion 300, 301, 302, 303, etc., which rolls up inside the cavity 213 in the form of a planar spiral in front of the rear wall 212.
  • the deflecting elements 217 and 218 deflect the cut wall section 300, 301, 302, 303, etc., so that the cut-up material in the collecting space 213 automatically rolls up to form the spiral.
  • FIG. 5 a coaxial cartridge 30 is shown, the intermediate wall 34 of the cutting tool 214 is partially cut. Due to the inclination of the cutting elements 215 and 216 relative to the axial plane (containing the central axis A) and with respect to the radial plane which is perpendicular to the central axis A, the generated section S is helical or helical, so that the cut material in shape a spiral band 300, 301, 302, 301, etc. is present.
  • FIG. 12 illustrates a situation in which the cut open material 300, 301, 302 is collected in the collecting space 213 of the print head 21.
  • the strip 300, 301, 302 was wound spirally in the collecting space 213.
  • the cutting edge 215 is inclined at an angle ⁇ with respect to the axis A ', which is arranged parallel to the central axis A, inclined.
  • the spiral cut S creates an optimum possibility to cut open the intermediate wall 34 with little effort and to collect the cut wall material. It is thus prevented that the collected material disturbs the further advancement of the print head 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)

Claims (12)

  1. Poussoir de pression (20) pour distribuer des matières d'une cartouche coaxiale (2) au moyen d'un dispositif distributeur (10) qui comprend une partie tête (21) avec au moins un élément de pression extérieur (210) pour déplacer un piston distributeur extérieur (37) et au moins un élément de pression intérieur (211) pour déplacer un piston distributeur intérieur (38), l'élément de pression extérieur (210) étant relié à l'élément de pression intérieur (211) et présentant un outil de coupe (214) avec au moins un élément de coupe (215, 216) qui présente un bord de coupe pour découper une cloison (34) qui sépare un espace de logement de matière extérieur (32) d'un espace de logement de matière intérieur (33),
    caractérisé en ce que
    l'outil de coupe (214) est configuré tel qu'une coupe en forme d'hélice est produite lors de la découpe de la cloison (34), cependant que l'élément de coupe qui existe au moins (215, 216) est placé oblique en formant un angle α par rapport au sens de déplacement du piston distributeur extérieur (37) et du piston distributeur intérieur (38) et que la partie tête (21) présente au moins un espace (213) pour recueillir la cloison découpée (34).
  2. Poussoir de pression (20) selon la revendication 1, caractérisé en ce que le poussoir de pression (20) présente une liaison (212) entre l'élément de pression extérieur (210) et l'élément de pression intérieur (211).
  3. Poussoir de pression (20) selon la revendication 1 ou 2, caractérisé en ce que l'élément de coupe qui existe au moins (215, 216) est placé entre l'élément de pression extérieur (210) et l'élément de pression intérieur (211) pour découper en forme d'hélice la cloison (34) placée entre l'espace de logement de matière extérieur (32) et l'espace de logement de matière intérieur (33).
  4. Poussoir de pression (20) selon l'une des revendications 1 à 3, caractérisé en ce que l'outil de coupe (214) est placé derrière la surface de contact de l'élément de pression intérieur (211) et/ou de l'élément de pression extérieur (210) et/ou la liaison (212) par rapport au sens de déplacement du poussoir de pression (20).
  5. Dispositif distributeur comprenant :
    une cartouche coaxiale (30) avec un espace de logement de matière extérieur (32) pour loger une première composante de matière et un espace de logement de matière intérieur (33) pour loger une seconde composante de matière qui sont séparés l'un de l'autre par une cloison (34),
    au moins un piston distributeur extérieur (37) qui est placé mobile pour distribuer la première composante de matière de l'espace de logement de matière extérieur (32) et au moins un piston distributeur intérieur (37) qui est placé mobile pour distribuer la seconde composante de matière de l'espace de logement de matière intérieur (33),
    caractérisé en ce que le dispositif distributeur comprend un poussoir de pression (20) selon l'une des revendications précédentes.
  6. Dispositif distributeur selon la revendication 5, caractérisé en ce que le dispositif distributeur présente un élément d'actionnement (12) dont l'actionnement déplace le poussoir de pression (20) qui déplace le piston distributeur extérieur (37) et le piston distributeur intérieur (38) dans une direction A.
  7. Dispositif distributeur selon la revendication 5 ou 6, caractérisé en ce que le poussoir de pression (20) est placé rotatif autour d'un axe A par rapport à la cloison (34) de la cartouche coaxiale (30).
  8. Dispositif distributeur selon l'une des revendications 5 à 7, caractérisé en ce que le dispositif distributeur est configuré comme un pistolet doseur.
  9. Procédé pour distribuer des matières d'une cartouche coaxiale (2) au moyen d'ùn dispositif distributeur (10) selon l'une des revendications précédentes comprenant les étapes :
    a) déplacement d'un poussoir de pression (20) pour le déplacement simultané d'au moins un piston distributeur extérieur (37) et d'au moins un piston distributeur intérieur (38) pour exprimer une première composante de matière d'un espace de logement de matière extérieur (32) de la cartouche coaxiale (2) et une seconde composante de matière d'un espace de logement de matière intérieur (33) de la cartouche coaxiale (2) et
    b) découpe de la cloison (34) qui sépare l'espace de logement de matière extérieur (32) de la cartouche coaxiale (2) et l'espace de logement de matière intérieur (33) de la cartouche coaxiale (2) par le déplacement du poussoir de pression (20)
    caractérisé en ce que
    la cloison (34) est découpée en spirale à l'étape b), la cloison découpée (34) étant recueillie dans un espace collecteur (213) prévu à cet effet.
  10. Procédé selon la revendication 9, caractérisé en ce que la découpe de la cloison (34) est exécutée à l'étape b) au moyen d'un outil de coupe (115, 116) qui coupe dans la cloison au moins une coupe oblique par rapport au sens de déplacement des pistons distributeurs (37, 38).
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que, pendant l'opération de coupe, l'outil de coupe (115, 116) tourne autour de l'axe (A) du sens de déplacement des pistons distributeurs (37, 28) par rapport à la cloison (34).
  12. Procédé selon l'une des revendications 9 à 11, caractérisé en ce que l'outil de coupe (115, 116), grâce au déplacement du poussoir de pression (20), coupe la cloison (34) automatiquement en la traversant.
EP20100151767 2010-01-27 2010-01-27 Poussoir coupant Active EP2353733B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100151767 EP2353733B1 (fr) 2010-01-27 2010-01-27 Poussoir coupant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100151767 EP2353733B1 (fr) 2010-01-27 2010-01-27 Poussoir coupant

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EP2353733A1 EP2353733A1 (fr) 2011-08-10
EP2353733B1 true EP2353733B1 (fr) 2014-03-19

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EP20100151767 Active EP2353733B1 (fr) 2010-01-27 2010-01-27 Poussoir coupant

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107955A1 (de) 2013-07-25 2015-01-29 Fischerwerke Gmbh & Co. Kg Ausdrückvorrichtung für eine Mehrkammerkartusche
AU2015299320B2 (en) 2014-08-05 2018-04-26 Basf Coatings Gmbh Cartridge holder, multi-chamber cartridges and metering and mixing devices which comprise same
CN111050927A (zh) 2017-09-01 2020-04-21 巴斯夫涂料有限公司 计量和混合装置
WO2019042772A1 (fr) 2017-09-01 2019-03-07 Basf Coatings Gmbh Dispositif de dosage et de mélange
DE102022129137A1 (de) 2022-11-04 2024-05-08 Fischerwerke Gmbh & Co. Kg Mehrkammerkartusche

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031798A1 (de) 1980-08-22 1982-04-01 Hilti AG, 9494 Schaan Auspressvorrichtung fuer mehrkomponentenmassen
US4493436A (en) * 1983-03-16 1985-01-15 Loctite Corporation Compartmental cartridge
DE20202620U1 (de) * 2002-02-20 2003-04-30 Sulzer Chemtech Ag, Winterthur Ausdrückvorrichtung für eine Coaxialkartusche

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