EP0232733A2 - Two-component application device - Google Patents

Two-component application device Download PDF

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Publication number
EP0232733A2
EP0232733A2 EP87100379A EP87100379A EP0232733A2 EP 0232733 A2 EP0232733 A2 EP 0232733A2 EP 87100379 A EP87100379 A EP 87100379A EP 87100379 A EP87100379 A EP 87100379A EP 0232733 A2 EP0232733 A2 EP 0232733A2
Authority
EP
European Patent Office
Prior art keywords
mixer
cartridge
tube
wing
mouth
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.)
Granted
Application number
EP87100379A
Other languages
German (de)
French (fr)
Other versions
EP0232733B1 (en
EP0232733A3 (en
Inventor
Wilhelm A. Keller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mixpac Systems AG
Original Assignee
Wilhelm A. Keller
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilhelm A. Keller filed Critical Wilhelm A. Keller
Publication of EP0232733A2 publication Critical patent/EP0232733A2/en
Publication of EP0232733A3 publication Critical patent/EP0232733A3/en
Application granted granted Critical
Publication of EP0232733B1 publication Critical patent/EP0232733B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00509—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the bayonet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • 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
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • 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

Definitions

  • the invention relates to a two-component discharge device, comprising a discharge cartridge with two discharge channels, each leading from a storage space into a common mouth part, separated by a wall, and an interchangeable flow mixer connected to the mouth with alternating right and left rows in a mixer tube counterclockwise wound and in the rotational position staggered mixing blades.
  • Discharge devices of this type are used in a known manner for processing various pasty or viscous masses, such as adhesives, joint sealants, lacquers, etc., which are stored separately in two components, but must be mixed for use, so that they react with one another to form a chemical reaction - usually one Solidification or curing - brought.
  • the cartridge content is pressed out of each storage space by actuating a delivery piston through the cartridge mouth, whereupon it flows through the mixer connected to it, where the two components are intimately mixed.
  • the contents of the cartridge are usually discharged in several portions with waiting times in between, during which, however, the components brought together in the mixer start to react.
  • the mixer is used for longer waiting times therefore unusable and must be replaced.
  • the object of the invention is to eliminate this difficulty and to ensure the trouble-free further discharge of the cartridge content and its flawless application even after repeated replacement of the mixer and after longer waiting times.
  • the two-component discharge device is characterized in that the first wing of the mixer tightly connects with its leading edge to the partition of the cartridge mouth and continues the two above-mentioned channels separately beyond the connection point of the mixer.
  • the invention also relates to a flow mixer of the type mentioned above, which is intended for connection to the two-component discharge cartridge mentioned.
  • this mixer is characterized in that the first wing is fixed in the mixer tube and the mixer for connection to the cartridge is designed in a certain rotational position in such a way that the said wing comes into tight contact with the duct partition and extends beyond the connection point continues.
  • the two-component or double cartridge 1 of the discharge device shown in FIG. 1 has two cylindrical storage containers 2 lying next to one another, each of which is provided with a delivery piston 3 for the discharge of the cartridge contents.
  • a discharge channel 5 leads from the storage space in each cylinder 2 into a common mouth part 6 of the cartridge, the channels 5 being separated by a wall 4 up to the mouth.
  • the cartridge l has a base plate 7 surrounding the mouth part 6, which has two opposing holding claws 8 for holding the mixer in the manner of a bayonet catch.
  • the flow mixer l0 (also called “static mixer”) has a mixer tube 11, which on the inlet side is designed to be conical with the mouth part 6 and with a Flange l2 is provided.
  • the flange l2 is placed between the claws 8 on the base plate 7 in a rotational position offset by 90 degrees compared to FIG. 3 and then rotated by a quarter turn, the flange engaging under the claws 8.
  • the rotational position of the connected mixer l0 relative to the cartridge is determined by two stops l3 provided on the flange l2, which come into contact with the claws 8.
  • the entirety of the mixing blades 14, 16 is preferably made in one piece as a plastic injection-molded part and is held as a mixing element in the mixer tube 11, but it is also possible to group the blades into two or more partial elements.
  • the first wing 14 of the mixer is held in the mixer tube 11 in such a way that its inlet edge 15 when the mixer 10 is connected to the double cartridge 1 is parallel to the partition 4 of the cartridge mouth and is tightly connected to it.
  • the first wing 14 forms a continuation of the partition 4 into the mixer tube 11, even if it is tortuous, ie the discharge channels 5 in the mouth part 6 of the cartridge are continued separately beyond the connection point 20 of the mixer.
  • the component streams emerging through the two channels 5 when the discharge device is actuated thus do not already meet when leaving the cartridge mouth, but for the first time at the transition from the first wing 14 to the subsequent wing 16.
  • the required relative position of the first wing l4 in the mixer tube ll (and of course also the subsequent wing l6) can only be achieved by an adhesive seat, i.e. Coordination of the diameter of the wing and the tube bore can be ensured.
  • the wing l4 in the area of the leading edge l5 is somewhat extended in the direction of the tube diameter and is held in corresponding small recesses l7 in the tube wall (FIG. 3). In this way, an axial pressing of the edge l5 on the end face of the partition 4, which is recommended for the tight connection, can easily be achieved.
  • the leading edge l5 can also advantageously be designed like a knife.
  • all the blades l4, l6 form a one-piece mixing element (e.g. a plastic injection-molded part)
  • a one-piece mixing element e.g. a plastic injection-molded part
  • a resilient tight fit of the leading edge l5 can then be achieved by slightly axially compressing the mixing element when the mixer l0 is placed on the cartridge l.

Abstract

1. Two-component dispensing device including a dispensing cartridge (1) with two dispensing passages (5) separated by a wall (4) and comprising a respective storage space (2) and leading to a common orifice member (6), and a replaceable flow mixer (10) which is adjacent to the orifice and within a mixer tube (11) has mixer vanes (14, 16, 18) which are arranged longitudinally in a row against one another, are twisted alternately to the left and the right and are mounted rotationally offset from one another, characterised in that the inlet edge (15) of the first vane (14) of the mixer closely engages the separating wall (4) of the cartridge orifice (6) and said first vane (14) continues the two passages (5) separate from one another beyond the connecting point (20).

Description

Die Erfindung bezieht sich auf eine Zweikomponenten-Austrag­einrichtung, enthaltend eine Austragkartusche mit zwei aus je einem Vorratsraum in einen gemeinsamen Mündungsteil füh­renden, durch eine Wand getrennten Austragkanälen sowie ei­nen an die Mündung anschliessenden, auswechselbaren Strö­mungsmischer mit in einem Mischerrohr längs aneinandergereihten, abwechselnd rechts- und linksdrehend gewundenen und in der Drehlage gegeneinander versetzt gehaltenen Mischflügeln.The invention relates to a two-component discharge device, comprising a discharge cartridge with two discharge channels, each leading from a storage space into a common mouth part, separated by a wall, and an interchangeable flow mixer connected to the mouth with alternating right and left rows in a mixer tube counterclockwise wound and in the rotational position staggered mixing blades.

Austrageinrichtungen dieser Art dienen in bekannter Weise zur Verarbeitung von mancherlei pastenartigen oder dickflüssigen Massen, wie Klebern, Fugendichtmassen, Lacken usw., die in zwei Komponenten getrennt aufbewahrt, zur Verwendung jedoch vermischt werden müssen, wodurch sie miteinander zur chemi­schen Reaktion - in der Regel eine Verfestigung bzw. Aushär­tung - gebracht werden. Bei Benutzung der Austrageinrichtung wird der Kartuscheninhalt aus jedem Vorratsraum durch Betä­tigung eines Förderkolbens durch die Kartuschenmündung aus­gepresst, worauf er den daran angeschlossenen Mischer durch­strömt, wo die beiden Komponenten innig vermischt werden. Zu­meist wird der Kartuscheninhalt in mehreren Teilportionen mit dazwischenliegenden Wartezeiten ausgetragen, während denen jedoch die im Mischer zusammengeführten Komponenten zu rea­gieren beginnen. Bei längeren Wartezeiten wird der Mischer dadurch unbrauchbar und muss ersetzt werden. Hierbei ergibt sich die Schwierigkeit, dass die Komponenten bereits am Uebergang zwischen Kartusche und Mischer und infolge Diffu­sion oft bis in die Kartuschenmündung hinein aushärten. Dies kann das Abtrennen des meist auf der Kartusche belassenen Mischers erschweren, vor allem aber behindern in der Masse entstehende Verhärtungen oder "Knollen" den weiteren Austrag des Kartuscheninhalts, oder es stellen sich Mängel bei der Applikation ein, wie Oberflächenfehler bei Lackierungen, man­gelhafte Verklebungen usw.Discharge devices of this type are used in a known manner for processing various pasty or viscous masses, such as adhesives, joint sealants, lacquers, etc., which are stored separately in two components, but must be mixed for use, so that they react with one another to form a chemical reaction - usually one Solidification or curing - brought. When using the discharge device, the cartridge content is pressed out of each storage space by actuating a delivery piston through the cartridge mouth, whereupon it flows through the mixer connected to it, where the two components are intimately mixed. The contents of the cartridge are usually discharged in several portions with waiting times in between, during which, however, the components brought together in the mixer start to react. The mixer is used for longer waiting times therefore unusable and must be replaced. The difficulty arises here that the components often harden at the transition between the cartridge and mixer and as a result of diffusion into the cartridge mouth. This can make it difficult to separate the mixer, which is usually left on the cartridge, but above all it prevents the hardening or "tubing" that occurs in the mass from further discharging the contents of the cartridge, or there are defects in the application, such as surface defects in the paintwork, poor bonding, etc .

Aufgabe der Erfindung ist es, diese Schwierigkeit zu beseiti­gen und auch bei wiederholter Auswechslung des Mischers und nach längeren Wartezeiten den störungsfreien weiteren Austrag des Kartuscheninhalts und dessen einwandfreie Applikation zu gewährleisten.The object of the invention is to eliminate this difficulty and to ensure the trouble-free further discharge of the cartridge content and its flawless application even after repeated replacement of the mixer and after longer waiting times.

Die erfindungsgemässe Zweikomponenten-Austrageinrichtung, mit welcher dies erreicht wird, ist dadurch gekennzeichnet, dass der erste Flügel des Mischers mit seiner Eintrittskante an die Trennwand der Kartuschenmündung dicht anschliesst und die beiden genannten Kanäle über die Anschlussstelle des Mischers hinaus getrennt weiterführt.The two-component discharge device according to the invention, with which this is achieved, is characterized in that the first wing of the mixer tightly connects with its leading edge to the partition of the cartridge mouth and continues the two above-mentioned channels separately beyond the connection point of the mixer.

Die Erfindung betrifft ausserdem einen Strömungsmischer der oben erwähnten Art, welcher zum Anschluss an die genannte Zweikomponenten-Austragkartusche bestimmt ist. Erfindungsge­mäss ist dieser Mischer dadurch gekennzeichnet, dass der er­ste Flügel im Mischerrohr so fixiert und der Mischer zum An­schluss an die Kartusche in bestimmter Drehlage so gestaltet ist, dass der genannte Flügel mit seiner Eintrittskante zum dichten Anliegen an die Kanaltrennwand kommt und diese über die Anschlussstelle hinaus fortsetzt.The invention also relates to a flow mixer of the type mentioned above, which is intended for connection to the two-component discharge cartridge mentioned. According to the invention, this mixer is characterized in that the first wing is fixed in the mixer tube and the mixer for connection to the cartridge is designed in a certain rotational position in such a way that the said wing comes into tight contact with the duct partition and extends beyond the connection point continues.

Damit wird die gestellte Aufgabe auf verblüffend einfache Weise gelöst, indem die Herstellung weder der Kartusche noch des Strömungsmischers einen Mehraufwand gegenüber bekannten Ausführungen erfordert. Ein solcher wäre gerade beim Mischer höchst unerwünscht, weil aus den oben geschilderten Gründen für jede Kartusche mehrere Stück benötigt werden und die Mi­scher bei dieser Anwendung deshalb als möglichst billige Weg­werfartikel gelten müssen.The task is solved in an astonishingly simple manner by neither manufacturing the cartridge nor the flow mixer requires an additional effort compared to known designs. Such a would be highly undesirable, especially for the mixer, because for the reasons described above, several pieces are required for each cartridge and the mixers in this application must therefore be considered as cheap disposable items as possible.

Die Erfindung wird nachstehend anhand von Ausführungsbeispie­len in Verbindung mit der Zeichnung näher erläutert.

  • Fig. l zeigt eine Austrageinrichtung, bestehend aus Zweikom­ponenten-Kartusche und Strömungsmischer, in teilweise geschnittener Seitenansicht,
  • Fig. 2 ist eine Ansicht der Kartusche nach Fig. l von der Mündungsseite her gesehen, und
  • Fig. 3 zeigt den Mischer nach Fig. l von der an die Kartusche anzuschliessenden Eintrittseite her.
The invention is explained in more detail below on the basis of exemplary embodiments in conjunction with the drawing.
  • 1 shows a discharge device, consisting of a two-component cartridge and flow mixer, in a partially sectioned side view,
  • Fig. 2 is a view of the cartridge of FIG. 1 seen from the mouth side, and
  • FIG. 3 shows the mixer according to FIG. 1 from the inlet side to be connected to the cartridge.

Die Zweikomponenten- oder Doppelkartusche l der in Fig. l dargestellten Austrageinrichtung weist zwei nebeneinanderlie­gende, zylindrische Vorratsbehälter 2 auf, die je mit einem Förderkolben 3 für den Austrag des Kartuscheninhalts versehen sind. Aus dem Vorratsraum in jedem Zylinder 2 führt je ein Austragkanal 5 in einem gemeinsamen Mündungsteil 6 der Kartu­sche, wobei die Kanäle 5 bis zur Mündung durch eine Wand 4 ge­trennt sind. Zur lösbaren Befestigung eines an die Kartuschen­mündung anschliessenden Strömungsmischers l0 weist die Kartu­sche l eine den Mündungsteil 6 umgebende Sockelplatte 7 auf, die zur Halterung des Mischers nach Art eines Bajonettver­schlusses zwei gegenüberliegende Halteklauen 8 aufweist.The two-component or double cartridge 1 of the discharge device shown in FIG. 1 has two cylindrical storage containers 2 lying next to one another, each of which is provided with a delivery piston 3 for the discharge of the cartridge contents. A discharge channel 5 leads from the storage space in each cylinder 2 into a common mouth part 6 of the cartridge, the channels 5 being separated by a wall 4 up to the mouth. For the detachable attachment of a flow mixer l0 adjoining the cartridge mouth, the cartridge l has a base plate 7 surrounding the mouth part 6, which has two opposing holding claws 8 for holding the mixer in the manner of a bayonet catch.

Der Strömungsmischer l0 (auch "statischer Mischer" genannt) weist ein Mischerrohr ll auf, welches eingangsseitig über den Mündungsteil 6 passend konisch ausgebildet und mit einem Flansch l2 versehen ist. Beim Anschliessen des Mischers an die Kartusche wird der Flansch l2 in gegenüber Fig. 3 um 90 Grad versetzter Drehlage zwischen den Klauen 8 auf die Sok­kelplatte 7 gesetzt und dann um eine Viertelsdrehung gedreht, wobei der Flansch unter die Klauen 8 greift. Durch zwei auf dem Flansch l2 vorgesehene Anschläge l3, die an den Klauen 8 zur Anlage kommen, ist die Drehlage des angeschlossenen Mi­schers l0 gegenüber der Kartusche bestimmt.The flow mixer l0 (also called "static mixer") has a mixer tube 11, which on the inlet side is designed to be conical with the mouth part 6 and with a Flange l2 is provided. When the mixer is connected to the cartridge, the flange l2 is placed between the claws 8 on the base plate 7 in a rotational position offset by 90 degrees compared to FIG. 3 and then rotated by a quarter turn, the flange engaging under the claws 8. The rotational position of the connected mixer l0 relative to the cartridge is determined by two stops l3 provided on the flange l2, which come into contact with the claws 8.

Im Rohr ll des Strömungsmischers befinden sich in an sich be­kannter Weise längs aneinandergereiht eine Anzahl abwechselnd rechts- und linksdrehend gewundene Mischflügel l4, l6, die jeweils in der Drehlage gegeneinander um 90 Grad versetzt sind. Bei der vorliegenden Mischerbauart ist vorzugsweise die Ge­samtheit der Mischflügel l4, l6 einteilig als Kunststoff-­Spritzteil gefertigt und als Mischelement insgesamt im Mischer­rohr ll gehalten, jedoch ist auch eine Gruppierung der Flügel zu zwei oder mehreren Teilelementen möglich.In the tube 11 of the flow mixer, in a manner known per se, there are a number of mixing blades 14, 16, which are wound alternately clockwise and counterclockwise and are each offset in the rotational position by 90 degrees. In the case of the present mixer type, the entirety of the mixing blades 14, 16 is preferably made in one piece as a plastic injection-molded part and is held as a mixing element in the mixer tube 11, but it is also possible to group the blades into two or more partial elements.

Wesentlich bei der vorliegenden Erfindung ist, dass der erste Flügel l4 des Mischers so im Mischerrohr ll gehalten ist, dass seine Eintrittskante l5 beim beschriebenen Anschluss des Mi­schers l0 an die Doppelkartusche l zur Trennwand 4 der Kartu­schenmündung parallel liegt und an diese dicht anschliesst. Dadurch bildet der erste Flügel l4 eine - wenn auch gewundene - ­Fortsetzung der Trennwand 4 in das Mischerrohr ll hinein, d.h. die Austragkanäle 5 im Mündungsteil 6 der Kartusche werden über die Anschlussstelle 20 des Mischers hinaus getrennt wei­tergeführt. Die bei Betätigung der Austrageinrichtung durch die beiden Kanäle 5 austretenden Komponentenströme treffen so­mit nicht bereits beim Verlassen der Kartuschenmündung aufein­ander, sondern erstmals beim Uebergang vom ersten Flügel l4 zum nachfolgenden Flügel l6. Damit ist gewährleistet, dass auch bei längerem Liegenlassen der Austrageinrichtung nach begonnenem Austrag im Anschlussbereich des Mischers (Stelle 20) und vor allem in der Kartuschenmündung keine Reaktion bzw. Verhärtung des Kartuscheninhalts stattfindet, d.h. die Aus­härtung oder "Knollenbildung" erfolgt ausschliesslich weiter vorn (in Strömungsrichtung) im ohnehin nicht weiter verwend­baren Mischer.It is essential in the present invention that the first wing 14 of the mixer is held in the mixer tube 11 in such a way that its inlet edge 15 when the mixer 10 is connected to the double cartridge 1 is parallel to the partition 4 of the cartridge mouth and is tightly connected to it. As a result, the first wing 14 forms a continuation of the partition 4 into the mixer tube 11, even if it is tortuous, ie the discharge channels 5 in the mouth part 6 of the cartridge are continued separately beyond the connection point 20 of the mixer. The component streams emerging through the two channels 5 when the discharge device is actuated thus do not already meet when leaving the cartridge mouth, but for the first time at the transition from the first wing 14 to the subsequent wing 16. This ensures that even if the discharge device is left for a long time after the discharge has started in the connection area of the mixer (position 20) and especially in the cartridge mouth, there is no reaction or Hardening of the cartridge contents takes place, ie the hardening or "bulb formation" takes place only further forward (in the direction of flow) in the mixer, which is no longer usable anyway.

Die erforderliche Relativlage des ersten Flügels l4 im Mi­scherrohr ll (und damit natürlich auch der nachfolgenden Flü­gel l6) kann lediglich durch Haftsitz, d.h. Abstimmung der Durchmesser des Flügels und der Rohr-Bohrung sichergestellt werden. Beim dargestellten Ausführungsbeispiel ist dagegen der Flügel l4 im Bereich der Eintrittskante l5 in Richtung des Rohrdurchmessers etwas verlängert und in entsprechenden kleinen Ausnehmungen l7 in der Rohrwand gehalten (Fig. 3). Auf diese Weise kann auch eine für den dichten Anschluss emp­fehlenswerte axiale Anpressung der Kante l5 an die Stirnseite der Trennwand 4 leicht erreicht werden. Die Eintrittskante l5 kann mit Vorteil auch schneidenartig gestaltet werden. Wenn, wie üblich, samtliche Flügel l4, l6 ein einteiliges Mischele­ment (z.B. ein Kunststoff-Spritzteil) bilden, ergibt sich die weitere Möglichkeit, das Mischelement am Austrittsende l8 ge­genüber dem Rohr ll axial und in der Drehlage zu positionie­ren, z.B. mittels nockenartiger Führungen an der Innenwand des Rohres ll (nicht dargestellt), um den richtigen Anschluss der Eintrittskante l5 sicherzustellen; durch geeignete Län­genbemessung von Mischelement und Rohr lässt sich dann auch ein federnd dichtes Anliegen der Eintrittskante l5 durch leichtes axiales Zusammendrücken des Mischelementes beim Auf­setzen des Mischers l0 auf die Kartusche l erreichen.The required relative position of the first wing l4 in the mixer tube ll (and of course also the subsequent wing l6) can only be achieved by an adhesive seat, i.e. Coordination of the diameter of the wing and the tube bore can be ensured. In the illustrated embodiment, on the other hand, the wing l4 in the area of the leading edge l5 is somewhat extended in the direction of the tube diameter and is held in corresponding small recesses l7 in the tube wall (FIG. 3). In this way, an axial pressing of the edge l5 on the end face of the partition 4, which is recommended for the tight connection, can easily be achieved. The leading edge l5 can also advantageously be designed like a knife. If, as usual, all the blades l4, l6 form a one-piece mixing element (e.g. a plastic injection-molded part), there is the further possibility of positioning the mixing element axially and in the rotational position at the outlet end l8 relative to the tube ll, e.g. by means of cam-like guides on the inner wall of the tube 11 (not shown) to ensure the correct connection of the leading edge l5; By suitably dimensioning the length of the mixing element and tube, a resilient tight fit of the leading edge l5 can then be achieved by slightly axially compressing the mixing element when the mixer l0 is placed on the cartridge l.

Claims (6)

1. Zweikomponenten-Austrageinrichtung, enthaltend eine Aus­tragkartusche mit zwei aus je einem Vorratsraum in einen gemeinsamen Mündungsteil führenden, durch eine Wand ge­trennten Austragkanälen sowie einen an die Mündung an­schliessenden, auswechselbaren Strömungsmischer mit in einem Mischerrohr längs aneinandergereihten, abwechselnd rechts- und linksdrehend gewundenen und in der Drehlage gegeneinander versetzt gehaltenen Mischflügeln, dadurch gekennzeichnet, dass der erste Flügel (l4) des Mischers (l0) mit seiner Eintrittskante (l5) an die Trennwand (4) der Kartuschenmündung (6) dicht anschliesst und die bei­den Kanäle (5) über die Anschlussstelle (20) hinaus ge­trennt weiterführt.1.Two-component discharge device, comprising a discharge cartridge with two discharge channels leading from a storage room into a common mouth part, separated by a wall, and an interchangeable flow mixer connected to the mouth, which is lined up in a mixer tube, alternately wound clockwise and counterclockwise, and in the mixing position of the mixing blades, which are offset from one another, characterized in that the first blade (l4) of the mixer (l0) with its leading edge (l5) is tightly connected to the partition (4) of the cartridge mouth (6) and the two channels (5) are connected via the Connection point (20) continues separately. 2. Zweikomponenten-Austrageinrichtung nach Anspruch l, da­durch gekennzeichnet, dass die genannte Eintrittskante (l5) an der Trennwand (4) stirnseitig unter axialer Pres­sung anliegt.2. Two-component discharge device according to claim l, characterized in that the said leading edge (l5) abuts the end wall under axial pressure on the partition (4). 3. Strömungsmischer, welcher zum lösbaren Anschluss an die eine Kanaltrennwand enthaltende Mündung einer Zweikompo­nenten-Austragkartusche bestimmt ist und welcher in ei­nem Mischerrohr längs aneinandergereihte, abwechselnd rechts- und linksdrehend gewundene und in der Drehlage gegeneinander versetzt gehaltene Mischflügel aufweist, dadurch gekennzeichnet, dass der erste Flügel (l4) im Mischerrohr (ll) so fixiert und der Mischer (l0) zum An­ schluss an die Kartusche (l) in bestimmter Drehlage so gestaltet ist, dass der genannte Flügel (l4) mit seiner Eintrittskante (l5) zum dichten Anliegen an die Kanal­trennwand (4) kommt und diese über die Anschlussstelle (20) hinaus fortsetzt.3. Flow mixer, which is intended for releasable connection to the mouth of a two-component discharge cartridge containing a channel partition and which has mixing blades which are lined up longitudinally in a row, alternately twisted to the left and to the right and offset in the rotational position, characterized in that the first The wing (l4) is fixed in the mixer tube (ll) and the mixer (l0) is turned on close to the cartridge (l) is designed in a certain rotational position so that the named wing (l4) with its leading edge (l5) comes to bear tightly against the duct partition (4) and continues this beyond the connection point (20). 4. Strömungsmischer nach Anspruch 3, dadurch gekennzeichnet, dass mindestens der erste Flügel (l4) im Mischerrohr (ll) durch Haftsitz gehalten ist.4. Flow mixer according to claim 3, characterized in that at least the first wing (l4) in the mixer tube (ll) is held by an adhesive seat. 5. Strömungsmischer nach Anspruch 3, dadurch gekennzeichnet, dass sämtliche Flügel (l4, l6) des Mischers (l0) ein ein­teiliges Mischelement bilden, welches am Austrittsende (l8) im Mischerrohr (ll) axial und in der Drehlage fixiert ist.5. Flow mixer according to claim 3, characterized in that all blades (l4, l6) of the mixer (l0) form a one-piece mixing element which is fixed axially and in the rotational position at the outlet end (l8) in the mixer tube (ll). 6. Strömungsmischer nach Anspruch 3, dadurch gekennzeichnet, dass der erste Flügel (l4) im Bereich seiner Eintritts­kante (l5) in Richtung des Rohrdurchmessers verlängert und in entsprechenden Ausnehmungen (l7) in der Rohrwand gehalten ist.6. Flow mixer according to claim 3, characterized in that the first wing (l4) in the region of its leading edge (l5) extends in the direction of the tube diameter and is held in corresponding recesses (l7) in the tube wall.
EP87100379A 1986-02-10 1987-01-14 Two-component application device Expired EP0232733B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH534/86 1986-02-10
CH53486 1986-02-10

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EP0232733A2 true EP0232733A2 (en) 1987-08-19
EP0232733A3 EP0232733A3 (en) 1987-12-16
EP0232733B1 EP0232733B1 (en) 1989-10-11

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771919A (en) * 1987-10-28 1988-09-20 Illinois Tool Works Inc. Dispensing device for multiple components
US5244933A (en) * 1990-10-12 1993-09-14 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Dental compositions which can be prepared and worked by the action of oscillations and method for the preparation thereof
US5458262A (en) * 1992-11-30 1995-10-17 Keller; Wilhelm A. Method for an aligned attachment of a mixer to a cartridge
US5487606A (en) * 1992-08-24 1996-01-30 Keller; Wilhelm A. Mixer for double cartridge dispenser
WO1997011670A1 (en) * 1995-09-27 1997-04-03 Dental-Material Gesellschaft Mbh Kit for the production of dental cement
US5624260A (en) * 1994-02-28 1997-04-29 Minnesota Mining And Manufacturing Company Delivery system for aqueous paste dental materials
US5722829A (en) * 1995-02-27 1998-03-03 Minnesota Mining & Manufacturing Co. Cartridge dispensing system for dental material
DE10019893A1 (en) * 2000-04-20 2001-10-31 3M Espe Ag mixer
EP1306123A1 (en) * 2001-10-24 2003-05-02 Karlheinz Reiber Applicator
US6564972B2 (en) 2000-06-09 2003-05-20 Dixcus Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
EP1543887A1 (en) * 2003-12-19 2005-06-22 Heraeus Kulzer GmbH Multi- component cartridge and its use
DE10022160B4 (en) * 2000-05-09 2006-01-19 Karlheinz Reiber applicator
DE102004030407A1 (en) * 2004-06-23 2006-01-19 Heraeus Kulzer Gmbh Cartridge for pasty materials
US7320541B2 (en) 2003-08-14 2008-01-22 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
US7387432B2 (en) * 2006-10-11 2008-06-17 Meditech International Ltd.-Samoa Slidable securing device for a mixer to allow communication between a mixer housing and a mixer inlet portion of the mixer
WO2010147817A1 (en) 2009-06-15 2010-12-23 3M Innovative Properties Company Polyether group containing dental composition containing an f-containing compound, process of production and use thereof
WO2011016977A1 (en) 2009-07-28 2011-02-10 3M Innovative Properties Company Cationically hardenable dental composition, process of production and use thereof
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EP2428199A1 (en) 2010-09-09 2012-03-14 3M Innovative Properties Company Curable composition, process of production and use thereof
US8318831B2 (en) 2005-06-22 2012-11-27 3M Innovative Properties Company Hydrophilized curable silicone impression materials with improved storage behavior
WO2012170413A1 (en) 2011-06-08 2012-12-13 3M Innovative Properties Company Siloxane compounds containing composition, method of production and use thereof
WO2013025494A1 (en) 2011-08-12 2013-02-21 3M Innovative Properties Company Curable composition with shortened setting time, process of production and use thereof
US8466210B2 (en) 2007-12-18 2013-06-18 3M Innovative Properties Company Dental composition containing a surfactant and an F-containing compound, process of production and use thereof
US8487016B2 (en) 2007-12-20 2013-07-16 3M Innovative Properties Company Dental impression material containing rheological modifiers and process of production
WO2014130603A1 (en) 2013-02-25 2014-08-28 3M Innovative Properties Company Stabilized dental impression composition, kit of parts and use thereof
US9295530B2 (en) 2012-03-20 2016-03-29 3M Innovative Properties Company Device for mixing and dispensing flowable components
WO2016099910A1 (en) 2014-12-16 2016-06-23 3M Innovative Properties Company Hardenable dental impression composition comprising a polymeric filler particles and use thereof

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EP1640060A1 (en) 2004-09-22 2006-03-29 3M Espe Ag Mixer for multi-component pastes, kit, and method of mixing paste components
EP1802385B1 (en) 2004-09-22 2008-01-23 3M Espe AG Mixer for multi-component pastes, kit, and method of mixing paste components
EP2044923A1 (en) 2007-10-04 2009-04-08 3M Innovative Properties Company Dental composition containing glass beads, process for production and use thereof

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EP0105181A2 (en) * 1982-09-07 1984-04-11 Liquid Control International Co. Apparatus for dispensing fluid compositions
FR2558209A1 (en) * 1984-01-13 1985-07-19 Hilti Ag METHOD OF LAYING A FIXING ELEMENT
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EP0105181A2 (en) * 1982-09-07 1984-04-11 Liquid Control International Co. Apparatus for dispensing fluid compositions
FR2558209A1 (en) * 1984-01-13 1985-07-19 Hilti Ag METHOD OF LAYING A FIXING ELEMENT
EP0213073A1 (en) * 1985-08-12 1987-03-04 Ciba-Geigy Ag Device for mixing and applying liquid or pasty substances

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US4771919A (en) * 1987-10-28 1988-09-20 Illinois Tool Works Inc. Dispensing device for multiple components
US5244933A (en) * 1990-10-12 1993-09-14 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Dental compositions which can be prepared and worked by the action of oscillations and method for the preparation thereof
US5487606A (en) * 1992-08-24 1996-01-30 Keller; Wilhelm A. Mixer for double cartridge dispenser
US5458262A (en) * 1992-11-30 1995-10-17 Keller; Wilhelm A. Method for an aligned attachment of a mixer to a cartridge
US5624260A (en) * 1994-02-28 1997-04-29 Minnesota Mining And Manufacturing Company Delivery system for aqueous paste dental materials
US5722829A (en) * 1995-02-27 1998-03-03 Minnesota Mining & Manufacturing Co. Cartridge dispensing system for dental material
WO1997011670A1 (en) * 1995-09-27 1997-04-03 Dental-Material Gesellschaft Mbh Kit for the production of dental cement
DE10019893C2 (en) * 2000-04-20 2003-05-28 3M Espe Ag Device in the form of a dynamic mixer or a cartridge front and their use
EP1274501B1 (en) * 2000-04-20 2004-06-23 3M Espe AG Mixer
DE10019893A1 (en) * 2000-04-20 2001-10-31 3M Espe Ag mixer
DE10022160B4 (en) * 2000-05-09 2006-01-19 Karlheinz Reiber applicator
US6564972B2 (en) 2000-06-09 2003-05-20 Dixcus Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
US6698622B2 (en) * 2000-06-09 2004-03-02 Discuss Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
EP1306123A1 (en) * 2001-10-24 2003-05-02 Karlheinz Reiber Applicator
US7320541B2 (en) 2003-08-14 2008-01-22 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
EP1543887A1 (en) * 2003-12-19 2005-06-22 Heraeus Kulzer GmbH Multi- component cartridge and its use
DE102004030407A1 (en) * 2004-06-23 2006-01-19 Heraeus Kulzer Gmbh Cartridge for pasty materials
US8318831B2 (en) 2005-06-22 2012-11-27 3M Innovative Properties Company Hydrophilized curable silicone impression materials with improved storage behavior
US8563625B2 (en) 2005-06-22 2013-10-22 3M Innovative Properties Company Hydrophilized curable silicone impression materials with improved storage behavior
US7387432B2 (en) * 2006-10-11 2008-06-17 Meditech International Ltd.-Samoa Slidable securing device for a mixer to allow communication between a mixer housing and a mixer inlet portion of the mixer
US8466210B2 (en) 2007-12-18 2013-06-18 3M Innovative Properties Company Dental composition containing a surfactant and an F-containing compound, process of production and use thereof
US8487016B2 (en) 2007-12-20 2013-07-16 3M Innovative Properties Company Dental impression material containing rheological modifiers and process of production
WO2010147817A1 (en) 2009-06-15 2010-12-23 3M Innovative Properties Company Polyether group containing dental composition containing an f-containing compound, process of production and use thereof
WO2011016977A1 (en) 2009-07-28 2011-02-10 3M Innovative Properties Company Cationically hardenable dental composition, process of production and use thereof
US8921475B2 (en) 2009-07-28 2014-12-30 3M Innovative Properties Company Cationically hardenable dental composition, process of production and use thereof
US8921440B2 (en) 2010-04-22 2014-12-30 3M Innovative Properties Company Radiation curable composition, process of production and use thereof
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US9216141B2 (en) 2010-09-09 2015-12-22 3M Innovative Properties Company Curable composition, process of production and use thereof
WO2012170413A1 (en) 2011-06-08 2012-12-13 3M Innovative Properties Company Siloxane compounds containing composition, method of production and use thereof
US8980973B2 (en) 2011-06-08 2015-03-17 3M Innovative Properties Company Siloxane compounds containing composition, method of production and use thereof
WO2013025494A1 (en) 2011-08-12 2013-02-21 3M Innovative Properties Company Curable composition with shortened setting time, process of production and use thereof
US9283153B2 (en) 2011-08-12 2016-03-15 3M Innovative Properties Company Curable composition with shortened setting time, process of production and use thereof
US9295530B2 (en) 2012-03-20 2016-03-29 3M Innovative Properties Company Device for mixing and dispensing flowable components
WO2014130603A1 (en) 2013-02-25 2014-08-28 3M Innovative Properties Company Stabilized dental impression composition, kit of parts and use thereof
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Also Published As

Publication number Publication date
EP0232733B1 (en) 1989-10-11
DE3760707D1 (en) 1989-11-16
EP0232733A3 (en) 1987-12-16

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