EP0664153B1 - Mixer - Google Patents

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Publication number
EP0664153B1
EP0664153B1 EP94810031A EP94810031A EP0664153B1 EP 0664153 B1 EP0664153 B1 EP 0664153B1 EP 94810031 A EP94810031 A EP 94810031A EP 94810031 A EP94810031 A EP 94810031A EP 0664153 B1 EP0664153 B1 EP 0664153B1
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EP
European Patent Office
Prior art keywords
mixer
component
inlet
cartridge
mixer according
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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.)
Expired - Lifetime
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EP94810031A
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German (de)
French (fr)
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EP0664153A1 (en
Inventor
Wilhelm A. Keller
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Individual
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Individual
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Priority to EP94810031A priority Critical patent/EP0664153B1/en
Priority to DE59407962T priority patent/DE59407962D1/en
Priority to US08/372,916 priority patent/US5498078A/en
Priority to JP00536895A priority patent/JP3591899B2/en
Publication of EP0664153A1 publication Critical patent/EP0664153A1/en
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Publication of EP0664153B1 publication Critical patent/EP0664153B1/en
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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
    • B05C17/00553—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
    • 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
    • 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
    • B05C17/00553—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
    • B05C17/00556—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 with means for adjusting the proportions of the components

Definitions

  • the present invention relates to a mixer for double discharge cartridges according to the generic term of Claim 1.
  • Such mixers are previously known, for example from EP-B-0 121 342, and have the task the two components that are discharged from the discharge cartridges are to be mixed intimately in order to prepare them in this way to be able to apply.
  • the two storage cylinders of the discharge cartridge are approximate have the same volume and also approximately that have the same discharge openings, mixing no major problems from the start more.
  • the storage cylinders are significantly different Volumes - which is synonymous with different Cross-sections is because the storage cylinders are manufacturing and have the same length for operational reasons - and outlet openings have, for example in a ratio of 10: 1, there is a risk that the component from the larger Storage cylinder at the beginning of the discharge the mixer coil group of the mixer and thus the second Component with lower volume suppressed or overwhelmed becomes.
  • the second component is generally the Hardener (catalyst) acts and a component mixture is not usable with too little hardener, it is for stabilization of the partial streams in the desired proportioning usual to squeeze a certain amount of useless first before started with the actual application of the mixture can be. Aside from the loss of component mass, you can do not harden and discharge these discharged substances Lead to problems in disposal.
  • EP-A-0 584 428 (application 24.08.92; date of publication 02.03.94) proposed a solution to this problem by making the first, larger component initially pent up in a chamber will and means are available to this first component into the entrance chamber of the second component manage and carry this.
  • this version is a Improvement over the state of the art known at the time brought, this solution requires a greater flow resistance due to several cross-sectional reductions required. This increased flow resistance can Require reinforcement of the cartridge walls and requires higher forces when discharging.
  • a discharge device is known from EP-A-0 472 448, in which the outlets of the discharge device or Cartridge housing are arranged so that the larger Component that flows around the smaller one and takes it along.
  • the device is intended to work with or without a mixer. If If no mixer is used, the two components come already in the cartridge or in the discharge device and hardened mass leads to that after changing the cartridge of the outlet area needs to be cleaned before can continue to work. When using a Mixing takes place there and after replacement the mixer can be cleaned without cleaning the outlet area Cartridge, or the discharge device to be continued.
  • the mixer coil group is constructed in such a way that the two components Mix well along the mixer to the discharge end.
  • Cross-sectional ratios of the supply cylinders to the Mass with the larger volume the mass with the smaller Volume especially in the initial phase, i.e. when refilling of the mixing tube, suppressed or overwhelmed, so that no prescribed mixing ratio can arise.
  • the mixing ratio of the partial flows stabilizes to a predetermined value.
  • Figures 1 and 1a show the perspective view Input part 2 and the upper part of the mixing coil group 1 with Coils 9, 9a, and Figure 3 shows the entrance of the mixer housing 3.
  • the in the mixer housing 3 matching input part 2 has one Alignment and guide bar 6 on the corresponding Guide groove 7 in the mixer housing 3 fits and also the Partial stream B leads.
  • the input part shows two alignment parts 4 and 5 have with the output of the cartridge or dispenser interact or the mixer housing can one Have cutout 25, with a corresponding cam interacts on the cartridge or on the discharge device.
  • the smaller component B comes from the cartridge outlet, or discharge device in channel 11, while the larger Component A the rest of the available volume of the front end.
  • the formation and location of the canal causes component A to start at the first Spiral 9 completely encapsulates component B.
  • the roof-shaped web 10, at where the first spiral begins, right in the middle of the channel 11 is arranged for the smaller component B and this split the partial flow A and partial flow B in half.
  • the Cover flange 8 corresponds to the inside width of the mixer tube 13 and can optionally have a sealing bead. Below the cover flange, on the entrance the A component is diametrically opposite side an inclined baffle 12 is arranged, the jam of Any air or gas present is prevented and thus good ventilation and avoidance of in bulk trapped air bubbles guaranteed.
  • 3-6 shows a second embodiment variant, where the channel for the smaller component B is completely enclosed. Since this is also one Mixer for a double cartridge with side by side Supply cylinders, the exit of B is due to the Cartridge and the entrance to the mixer for the smaller component B not in the middle, but on the side. For one optimal wrapping of component B by component A it is particularly advantageous to have component B in the middle of the mixer pipe.
  • Fig. 3 you can see the input part in a perspective view 14 with the subsequent mixing coil group 15.
  • the input part is on the B side with a cover flange 16 completed, an opening 17 for the smaller one Component B has, while the larger component A flows into the input part next to the cover flange 16.
  • the mixer to the cartridge becomes the cartridge outlet 22 sealingly pressed against the cover flange 16.
  • the wall 18 is arranged perpendicular to the cover flange 16 and serves to center and stabilize the input part in the Mixer housing. This version is also below the Cover flange 16 and on the entry of the A component diametrically opposite side an oblique guide surface 12 arranged to achieve good ventilation.
  • the channel 19 for the smaller partial stream B is different to channel 11 of the previous version on all sides closed.
  • Channel 19 is, see also FIG. 4, in relation to FIG the longitudinal axis of the mixer is arranged obliquely and opens into the middle of the mixer tube.
  • the roof-shaped web 20 of the first Spiral 21 which divides the partial stream B in half, and so on a good prerequisite for proper mixing create.
  • the first mixer element does not have to have a web 10 or 20 and it does not have to be roof-shaped.
  • the mixer housing 3B is a variant of the mixer housing 2 and is attached to the cartridge housing or can be attached to the discharge device via a bayonet connection and has a guide groove 7B, see Fig. 5, in which the wall 18 lying on the A side fits.
  • the bayonet flange has a recess 26 that the alignment the mixer on the cartridge or on the discharge device serves.
  • FIG 4 is a cutaway view of the mixer housing 3B, in which the outlet 22 with the two Outputs 23 and 24 of the double cartridge or the discharge device is drawn. In the two cuts of the 5 and 6 it can be seen that the channel 19 in the center of the mixer tube 13B is guided.
  • the mixer according to the invention ensures efficient and optimal mixing process. With this arrangement possible slight phase shifts or Pulsations between components A and B caused through various influences such as B. different Elasticity of the two cartridge cylinders, due to the hereby improved compensation or backmixing effect of the static mixer largely balanced. It is of course, make sure that the cross sections of the partial flows are proportioned in such a way that guarantees is that both sub-streams are the first spiral at the same time to reach.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessories For Mixers (AREA)

Description

Die vorliegende Erfindung bezieht sich auf einen Mischer für Doppelaustragkartuschen gemäss dem Oberbegriff von Patentanspruch 1. Solche Mischer sind vorbekannt, beispielsweise aus der EP-B-0 121 342, und haben die Aufgabe, die beiden Komponenten, die aus den Austragkartuschen ausgetragen werden, innig zu mischen, um sie derart aufbereitet auftragen zu können.The present invention relates to a mixer for double discharge cartridges according to the generic term of Claim 1. Such mixers are previously known, for example from EP-B-0 121 342, and have the task the two components that are discharged from the discharge cartridges are to be mixed intimately in order to prepare them in this way to be able to apply.

Falls die beiden Vorratszylinder der Austragkartusche ungefähr das gleiche Volumen aufweisen und auch ungefähr die gleichen Austragöffnungen besitzen, stellt das Vermischen der beiden Komponenten von Anfang an keine grossen Probleme mehr. Falls jedoch die Vorratszylinder wesentlich verschiedene Volumina - was gleichbedeutend mit verschiedenen Querschnitten ist, da die Vorratszylinder herstellungs- und betriebsbedingt die gleiche Länge besitzen - und Austrittöffnungen aufweisen, beispielsweise in einem Verhältnis von 10:1, besteht die Gefahr, dass die Komponente aus dem grösseren Vorratszylinder beim Beginn des Austragens die Mischwendelgruppe des Mischers auffüllt und somit die zweite Komponente mit geringerem Volumen unterdrückt, bzw. überwältigt wird. Insbesondere drückt im Eingangsbereich der grössere Teilstrom "A" den kleineren Teilstrom "B" an die B-seitige Wandung des Mischrohrs, wo dieser, infolge der Wandreibung zurückbleibt und daher von der grösseren A-Komponente überwältigt, bzw. unterdrückt wird und sich daher erst nach einiger Zeit als Strömung durchsetzen kann. Während dieser Anfangsphase eilt der Teilstrom A vor und es kann keine Vermischung in den vorgesehenen Proportionen erfolgen, was dazu führt, dass die Komponenten nicht oder nur teilweise miteinander reagieren können und es dadurch bei der Verarbeitung zu fehlerhaften Verbindungen, Dichtungen, Abdrücken, etc. kommt. If the two storage cylinders of the discharge cartridge are approximate have the same volume and also approximately that have the same discharge openings, mixing no major problems from the start more. However, if the storage cylinders are significantly different Volumes - which is synonymous with different Cross-sections is because the storage cylinders are manufacturing and have the same length for operational reasons - and outlet openings have, for example in a ratio of 10: 1, there is a risk that the component from the larger Storage cylinder at the beginning of the discharge the mixer coil group of the mixer and thus the second Component with lower volume suppressed or overwhelmed becomes. In particular, presses in the entrance area larger partial flow "A" the smaller partial flow "B" to the B-side wall of the mixing tube, where this, due to the Wall friction remains and therefore from the larger A component overwhelmed or suppressed and therefore can only establish itself as a current after some time. While this initial phase leads the partial flow A and it there can be no mixing in the intended proportions, which results in the components not or only partially react with each other and thereby processing to faulty connections, seals, Imprints, etc. is coming.

Da es sich im allgemeinen bei der zweiten Komponente um den Härter (Katalysator) handelt und eine Komponentenmischung mit zuwenig Härter nicht brauchbar ist, ist es zur Stabilisierung der Teilströme in der gewünschten Proportionierung üblich, zuerst eine gewisse Menge nutzlos auszupressen, bevor mit dem eigentlichen Auftragen der Mischung begonnen werden kann. Abgesehen vom Verlust an Komponentenmasse können diese ausgetragenen Substanzen nicht aushärten und zu Problemen bei der Entsorgung führen.Since the second component is generally the Hardener (catalyst) acts and a component mixture is not usable with too little hardener, it is for stabilization of the partial streams in the desired proportioning usual to squeeze a certain amount of useless first before started with the actual application of the mixture can be. Aside from the loss of component mass, you can do not harden and discharge these discharged substances Lead to problems in disposal.

In der EP-A-0 584 428 (Anmeldung 24.08.92; Veröffentlichungstag 02.03.94) wird eine Lösung dieses Problems dadurch vorgeschlagen, dass die erste, grössere Komponente anfänglich in einer Kammer aufgestaut wird und Mittel vorhanden sind, um diese erste Komponente in die Eingangskammer der zweiten Komponente zu leiten und diese mitzuführen. Obwohl diese Ausführung eine Verbesserung gegenüber dem damals bekannten Stand der Technik brachte, bedingt diese Lösung einen grösseren Fliesswiderstand infolge mehrerer erforderlichen Querschnittsverkleinerungen. Dieser erhöhte Fliesswiderstand kann eine Verstärkung der Kartuschenwände erforderlich machen und benötigt höhere Kräfte beim Austragen.In EP-A-0 584 428 (application 24.08.92; date of publication 02.03.94) proposed a solution to this problem by making the first, larger component initially pent up in a chamber will and means are available to this first component into the entrance chamber of the second component manage and carry this. Although this version is a Improvement over the state of the art known at the time brought, this solution requires a greater flow resistance due to several cross-sectional reductions required. This increased flow resistance can Require reinforcement of the cartridge walls and requires higher forces when discharging.

Ausserdem ist aus der EP-A-0 472 448 ein Austraggerät bekannt, bei dem die Auslässe des Austraggeräts, bzw. des Kartuschengehäuses derart angeordnet sind, dass die grössere Komponente die kleinere umfliesst und mitnimmt. Das Gerät ist gedacht, mit oder ohne Mischer zu arbeiten. Falls kein Mischer verwendet wird, kommen die beiden Komponenten bereits in der Kartusche oder im Austraggerät zusammen und ausgehärtete Masse führt dazu, dass nach dem Auswechseln der Kartusche der Auslassbereich gereinigt werden muss, bevor weiter gearbeitet werden kann. Bei der Verwendung eines Mischers erfolgt die Aushärtung dort und nach Auswechseln des Mischers kann ohne Reinigung des Auslassbereiches der Kartusche, bzw. des Austraggeräts weitergearbeitet werden. In addition, a discharge device is known from EP-A-0 472 448, in which the outlets of the discharge device or Cartridge housing are arranged so that the larger Component that flows around the smaller one and takes it along. The The device is intended to work with or without a mixer. If If no mixer is used, the two components come already in the cartridge or in the discharge device and hardened mass leads to that after changing the cartridge of the outlet area needs to be cleaned before can continue to work. When using a Mixing takes place there and after replacement the mixer can be cleaned without cleaning the outlet area Cartridge, or the discharge device to be continued.

Bei oben angegebenem Gerät werden jedoch keine Vorkehrungen für ein exaktes Mischverhältnis im Mischer getroffen.With the device specified above, however, no precautions are taken for an exact mixing ratio in the mixer.

Es ist davon ausgehend Aufgabe der vorliegenden Erfindung einen Mischer anzugeben, in dem die an der Kartusche nebeneinander austretenden Komponenten im Eingangsteil so geführt werden, dass die beiden Komponenten das erste Mischerelement derart anströmen, dass eine gute Vermischung von Anfang an gewährleistet ist, und vor der ersten Mischwendelgruppe kein erhöhter Fliesswiderstand erzeugt wird. Ein Mischer, der diese Aufgabe löst, ist in Anspruch 1 beschrieben.Based on this, it is the object of the present invention specify a mixer in which the cartridges side by side escaping components in the input section be that the two components are the first mixer element flow in such a way that a good mixing of Is guaranteed from the beginning, and before the first mixing coil group no increased flow resistance is generated. A Mixer that solves this problem is described in claim 1.

Die Erfindung wird im folgenden anhand einer Zeichnung von Ausführungsbeispielen näher erläutert:

  • Die Fig. 1, 1a und 2 zeigen in perspektivischer Sicht ein erstes Ausführungsbeispiel der Erfindung,
  • die Fig. 3 und 4 zeigen in perspektivischer Sicht ein zweites Ausführungsbeispiel der Erfindung, wobei Fig. 4 teilweise längs geschnitten ist,
  • Fig. 5 zeigt einen Schnitt gemäss der Linie V-V in Fig. 4, und
  • Fig. 6 zeigt einen Schnitt gemäss der Linie VI-VI in Fig. 4.
    • The invention is explained in more detail below with reference to a drawing of exemplary embodiments:
  • 1, 1a and 2 show a perspective view of a first embodiment of the invention,
  • 3 and 4 show a perspective view of a second embodiment of the invention, wherein FIG. 4 is partially cut longitudinally,
  • Fig. 5 shows a section along the line VV in Fig. 4, and
  • FIG. 6 shows a section along the line VI-VI in FIG. 4.

    • Bei vorbekannten Mischern gelangen die Komponenten willkürlich zur ersten Wendel des Mischers, wobei die Mischwendelgruppe derart konstruiert ist, dass sich die beiden Komponenten längs des Mischers bis zum Austragende gut vermischen. Wie eingangs erwähnt, kommt es bei vorbekannten Mischern bei unterschiedlichen Volumenverhältnissen, resp. Querschnittverhältnissen der Vorratszylinder dazu, dass die Masse mit dem grösseren Volumen die Masse mit dem kleineren Volumen, insbesondere in der Anfangsphase, d.h. beim Auffüllen des Mischrohres, unterdrückt, bzw. überwältigt, so dass kein vorgeschriebenes Mischverhältnis entstehen kann. Nach einer gewissen Zeit, d.h. wenn der Mischer vollständig gefüllt worden ist und eine bestimmte Menge ausgetragen wurde, stabilisiert sich das Mischverhältnis der Teilströme auf einen vorbestimmten Wert.In the case of previously known mixers, the components arrive at random to the first coil of the mixer, the mixer coil group is constructed in such a way that the two components Mix well along the mixer to the discharge end. As mentioned at the beginning, it occurs with previously known Mixers with different volume ratios, respectively. Cross-sectional ratios of the supply cylinders to the Mass with the larger volume the mass with the smaller Volume, especially in the initial phase, i.e. when refilling of the mixing tube, suppressed or overwhelmed, so that no prescribed mixing ratio can arise. After a certain time, i.e. when the mixer is complete has been filled and a certain amount discharged the mixing ratio of the partial flows stabilizes to a predetermined value.

    Die Figuren 1 und 1a zeigen in perspektivischer Ansicht den Eingangsteil 2 und den oberen Teil der Mischwendelgruppe 1 mit Wendeln 9, 9a, und Figur 3 zeigt den Eingang des Mischergehäuses 3. Das in das Mischergehäuse 3 passende Eingangsteil 2 weist einen Ausricht- und Leitsteg 6 auf, der in eine entsprechende Führungsnut 7 im Mischergehäuse 3 passt und ausserdem den Teilstrom B führt. Zum Ausrichten des Mischers an der Kartusche oder am Austraggerät kann entweder wie in Figur 1 eingezeichnet das Eingangsteil zwei Ausrichtteile 4 und 5 aufweisen, die mit dem Ausgang der Kartusche oder Austraggerät zusammenwirken oder das Mischergehäuse kann einen Ausschnitt 25 aufweisen, der mit einem entsprechenden Nocken an der Kartusche oder am Austraggerät zusammenwirkt.Figures 1 and 1a show the perspective view Input part 2 and the upper part of the mixing coil group 1 with Coils 9, 9a, and Figure 3 shows the entrance of the mixer housing 3. The in the mixer housing 3 matching input part 2 has one Alignment and guide bar 6 on the corresponding Guide groove 7 in the mixer housing 3 fits and also the Partial stream B leads. For aligning the mixer on the cartridge or on the discharge device can either as in Figure 1 the input part shows two alignment parts 4 and 5 have with the output of the cartridge or dispenser interact or the mixer housing can one Have cutout 25, with a corresponding cam interacts on the cartridge or on the discharge device.

    Die kleinere Komponente B gelangt vom Kartuschenausgang, bzw. Austraggerät in den Kanal 11, während die grössere Komponente A den Rest des zur Verfügung stehenden Volumen des Eingangsteils einnimmt. Die Ausbildung und Lage des Kanals bewirkt, dass die Komponente A bei Beginn der ersten Wendel 9 die Komponente B ganz umhüllt. Aus Fig. 1a ist ferner ersichtlich, dass der dachkantförmige Steg 10, bei dem die erste Wendel beginnt, genau in der Mitte des Kanals 11 für die kleinere Komponente B angeordnet ist und dieser den Teilstrom A sowie Teilstrom B hälftig aufteilt. Der Deckflansch 8 entspricht der lichten Weite des Mischerrohres 13 und kann gegebenenfalls einen Dichtwulst aufweisen. Unterhalb des Deckflansches, auf der dem Eintritt der A-Komponente diametral entgegengesetzten Seite, ist eine schräge Leitfläche 12 angeordnet, die den Stau von eventuell vorhandener Luft oder Gas verhindert und somit eine gute Entlüftung und die Vermeidung von in der Masse eingeschlossenen Luftblasen gewährleistet.The smaller component B comes from the cartridge outlet, or discharge device in channel 11, while the larger Component A the rest of the available volume of the front end. The formation and location of the canal causes component A to start at the first Spiral 9 completely encapsulates component B. From Fig. 1a can also be seen that the roof-shaped web 10, at where the first spiral begins, right in the middle of the channel 11 is arranged for the smaller component B and this split the partial flow A and partial flow B in half. Of the Cover flange 8 corresponds to the inside width of the mixer tube 13 and can optionally have a sealing bead. Below the cover flange, on the entrance the A component is diametrically opposite side an inclined baffle 12 is arranged, the jam of Any air or gas present is prevented and thus good ventilation and avoidance of in bulk trapped air bubbles guaranteed.

    Durch das exakte Ausrichten beider Teilströme auf den Steg 10 der ersten Wendel 9, wobei sich der Steg auch hinter der Abschlusswand 11a des Kanals 11 erstreckt, sowie das Umhüllen der Komponente B durch die Komponente A wird ein exaktes Mischverhältnis von der ersten Wendel an und somit eine optimale Durchmischung beider Komponenten gewährleistet sowie eine Unterdrückung der Komponente B vermieden. Ausserdem wird darauf geachtet, dass die Querschnitte der beiden Teilströmungen im Bereich zwischen dem Deckflansch und dem Steg etwa dem Mischverhältnis entsprechen.Through the exact alignment of both partial flows on the web 10 of the first coil 9, the web also behind the End wall 11a of the channel 11 extends, as well as wrapping component B by component A becomes an exact one Mixing ratio from the first helix and thus one ensures optimal mixing of both components as well a suppression of component B avoided. Furthermore care is taken that the cross sections of the two Partial flows in the area between the cover flange and the Bridge approximately correspond to the mixing ratio.

    In den Fig. 3-6 ist eine zweite Ausführungsvariante dargestellt, bei welcher der Kanal für die kleinere Komponente B vollständig umschlossen ist. Da es sich auch hier um einen Mischer für eine Doppelkartusche mit nebeneinanderliegenden Vorratszylindern handelt, liegt der Austritt von B an der Kartusche und der Eingang am Mischer für die kleinere Komponente B nicht in der Mitte, sondern seitlich. Für eine optimale Umhüllung der Komponente B durch die Komponente A ist es besonders vorteilhaft, die Komponente B in die Mitte des Mischerrohres zu leiten.3-6 shows a second embodiment variant, where the channel for the smaller component B is completely enclosed. Since this is also one Mixer for a double cartridge with side by side Supply cylinders, the exit of B is due to the Cartridge and the entrance to the mixer for the smaller component B not in the middle, but on the side. For one optimal wrapping of component B by component A it is particularly advantageous to have component B in the middle of the mixer pipe.

    In Fig. 3 erkennt man in perspektivischer Sicht das Eingangsteil 14 mit der anschliessenden Mischwendelgruppe 15. Das Eingangsteil wird auf der B-Seite mit einem Deckflansch 16 abgeschlossen, der eine Oeffnung 17 für die kleinere Komponente B aufweist, während die grössere Komponente A neben dem Deckflansch 16 in das Eingangsteil strömt. Beim Anschluss des Mischers an die Kartusche wird der Kartuschenauslass 22 dichtend an den Deckflansch 16 gepresst. In Fig. 3 you can see the input part in a perspective view 14 with the subsequent mixing coil group 15. The input part is on the B side with a cover flange 16 completed, an opening 17 for the smaller one Component B has, while the larger component A flows into the input part next to the cover flange 16. At the Connecting the mixer to the cartridge becomes the cartridge outlet 22 sealingly pressed against the cover flange 16.

    Die Wand 18 ist senkrecht zum Deckflansch 16 angeordnet und dient zum Zentrieren und Stabilisieren des Eingangsteils im Mischergehäuse. Auch in dieser Ausführung ist unterhalb des Deckflansches 16 und auf der dem Eintritt der A-Komponente diametral entgegengesetzten Seite eine schräge Leitfläche 12 angeordnet, um eine gute Entlüftung zu erzielen.The wall 18 is arranged perpendicular to the cover flange 16 and serves to center and stabilize the input part in the Mixer housing. This version is also below the Cover flange 16 and on the entry of the A component diametrically opposite side an oblique guide surface 12 arranged to achieve good ventilation.

    Der Kanal 19 für den kleineren Teilstrom B ist im Unterschied zum Kanal 11 der vorhergehenden Ausführung allseitig geschlossen. Kanal 19 ist, siehe auch Fig. 4, in Bezug auf die Längsachse des Mischers schräg angeordnet und mündet in der Mitte des Mischerrohres. Anschliessend an den Kanalaustritt befindet sich der dachkantförmige Steg 20 der ersten Wendel 21, der den Teilstrom B in zwei Hälften teilt, um so eine gute Voraussetzung für eine richtige Durchmischung zu schaffen. Das erste Mischerelement muss nicht einen Steg 10 oder 20 besitzen und dieser muss nicht dachkantförmig sein.The channel 19 for the smaller partial stream B is different to channel 11 of the previous version on all sides closed. Channel 19 is, see also FIG. 4, in relation to FIG the longitudinal axis of the mixer is arranged obliquely and opens into the middle of the mixer tube. Following the canal exit is the roof-shaped web 20 of the first Spiral 21, which divides the partial stream B in half, and so on a good prerequisite for proper mixing create. The first mixer element does not have to have a web 10 or 20 and it does not have to be roof-shaped.

    Das Mischergehäuse 3B stellt eine Variante zum Mischergehäuse von Fig. 2 dar und ist an das Kartuschengehäuse, bzw. am Austraggerät, über einen Bajonett-Anschluss befestigbar und weist eine Führungsnut 7B auf, siehe Fig. 5, in die die auf der A-Seite liegende Wand 18 passt. Der Bajonettflanschrand weist eine Ausnehmung 26 auf, die der Ausrichtung des Mischers an der Kartusche oder am Austraggerät dient.The mixer housing 3B is a variant of the mixer housing 2 and is attached to the cartridge housing or can be attached to the discharge device via a bayonet connection and has a guide groove 7B, see Fig. 5, in which the wall 18 lying on the A side fits. The bayonet flange has a recess 26 that the alignment the mixer on the cartridge or on the discharge device serves.

    In Fig. 4 ist eine aufgeschnittene Darstellung des Mischergehäuses 3B dargestellt, in der der Auslass 22 mit den beiden Ausgängen 23 und 24 der Doppelkartusche, bzw. des Austraggerätes eingezeichnet ist. In den beiden Schnitten der Fig. 5 und 6 erkennt man, dass der Kanal 19 in das Zentrum des Mischerrohres 13B geführt wird.4 is a cutaway view of the mixer housing 3B, in which the outlet 22 with the two Outputs 23 and 24 of the double cartridge or the discharge device is drawn. In the two cuts of the 5 and 6 it can be seen that the channel 19 in the center of the mixer tube 13B is guided.

    Aus obiger Beschreibung geht hervor, dass die Austragöffnungen der Austragkartusche oder des Austraggerätes mit den Eingangsöffnungen des Mischers übereinstimmen müssen und es notwendig ist Massnahmen vorzusehen, den Mischer in der richtigen Position daran aufzusetzen, insbesondere dann, wenn das Volumen- und Oeffnungsverhältnis beider Vorratszylinder verschieden von 1:1 ist, wie in vorliegender Anmeldung. Verschiedene weitere Massnahmen dazu sind in der eingangs erwähnten EP-A-0 584 428 beschrieben worden. Das Gleiche gilt für die Verwendung des vorliegenden erfindungsgemässen Mischers an einem Mischeranschluss an Dosier- und Proportionieranlagen.From the above description it can be seen that the discharge openings the discharge cartridge or the discharge device with the Input openings of the mixer must match it Measures must be taken to ensure that the mixer in the right position on it, especially then if the volume and opening ratio of both storage cylinders is different from 1: 1, as in the present application. Various other measures are in the beginning mentioned EP-A-0 584 428 have been described. The same applies to the use of the present mixer according to the invention at a mixer connection on dosing and proportioning systems.

    Der erfindungsgemässe Mischer gewährleistet einen effizienten und optimalen Mischvorgang. Mit dieser Anordnung werden eventuell auftretende leichte Phasenverschiebungen oder Pulsationen zwischen den Komponenten A und B, verursacht durch verschiedene Einflüsse wie z. B. unterschiedliche Elastizität der beiden Kartuschenzylinder, infolge des hierdurch verbesserten Ausgleichs- oder Rückmischeffektes des statischen Mischers weitgehend ausgeglichen. Dabei ist selbstverständlich darauf zu achten, dass die Querschnitte der Teilströme derart proportioniert sind, dass gewährleistet ist, dass beide Teilströme gleichzeitig die erste Wendel erreichen.The mixer according to the invention ensures efficient and optimal mixing process. With this arrangement possible slight phase shifts or Pulsations between components A and B caused through various influences such as B. different Elasticity of the two cartridge cylinders, due to the hereby improved compensation or backmixing effect of the static mixer largely balanced. It is of course, make sure that the cross sections of the partial flows are proportioned in such a way that guarantees is that both sub-streams are the first spiral at the same time to reach.

    Claims (8)

    1. Mixer for double dispensing cartridges or dispensing appliances having at least two storage cylinders whose volumetric ratio is different from 1:1, comprising a mixer housing (3, 3B) which is attachable to the cartridge resp. the dispensing appliance, and a mixing helix group (1, 15) arranged in the mixer housing (3, 3B), the two laterally adjacent openings of the cartridge resp. the dispensing appliance communicating with the inlet portion (2, 14) of the mixing helix group, characterised in that the inlet portion (2, 14) in front of the mixing helix group (1, 15) is divided into a larger inlet chamber for the first component (A) having a greater dispensing volume and into a smaller inlet chamber (11, 19) for the second component (B) having a smaller dispensing volume, and in that the smaller inlet chamber is arranged and designed in such a manner that the first component (A) envelops the second component (B) at the exit of the inlet chambers and that the first inlet edge (10, 20) of the first helix (9, 21) divides both the flow of the first (A) and the flow of the second component (B) into equal parts.
    2. Mixer according to claim 1, characterised in that the smaller inlet chamber is designed as a channel (11, 19) which ends in the centre of the mixing tube (13) in front of the first helix (9, 21).
    3. Mixer according to claim 2, characterised in that the channel (11) is open on the side of the first component (A).
    4. Mixer according to claim 2, characterised in that the channel (19) is designed as a closed tube.
    5. Mixer according to one of claims 1 to 4, characterised in that the cross-sectional areas, resp. the volumes of the inlet chambers (11, 19; 2, 14) and thus of the partial flows (A, B) of the two components are proportioned in such a manner that the two partial flows reach the first helix (9, 21) at the same time.
    6. Mixer according to one of claims 1 to 5, characterised in that diametrically opposite the inlet, the inlet chamber (2, 14) comprises means (12) allowing to prevent the retention of air and thus an inclusion of air bubbles in the larger partial flow (A).
    7. Mixer according to one of claims 1 to 6, characterised in that the inlet portion (2, 14) and the housing (3, 3B) of the mixer comprise means (6, 7; 18, 7B) allowing an aligned mounting of the inlet portion including the mixing helix group (1, 15) in the mixer housing.
    8. Mixer according to one of claims 1 to 7, characterised in that it comprises means (4, 5; 25, 26) which allow an aligned attachment of the mixer to the cartridge resp. the dispensing appliance.
    EP94810031A 1994-01-19 1994-01-19 Mixer Expired - Lifetime EP0664153B1 (en)

    Priority Applications (4)

    Application Number Priority Date Filing Date Title
    EP94810031A EP0664153B1 (en) 1994-01-19 1994-01-19 Mixer
    DE59407962T DE59407962D1 (en) 1994-01-19 1994-01-19 mixer
    US08/372,916 US5498078A (en) 1994-01-19 1995-01-13 Mixer for double dispensing cartridges or dispensing appliances
    JP00536895A JP3591899B2 (en) 1994-01-19 1995-01-18 Mixer for dual distribution cartridge

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP94810031A EP0664153B1 (en) 1994-01-19 1994-01-19 Mixer

    Publications (2)

    Publication Number Publication Date
    EP0664153A1 EP0664153A1 (en) 1995-07-26
    EP0664153B1 true EP0664153B1 (en) 1999-03-17

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    US (1) US5498078A (en)
    EP (1) EP0664153B1 (en)
    JP (1) JP3591899B2 (en)
    DE (1) DE59407962D1 (en)

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    DE102019101644A1 (en) 2019-01-23 2020-07-23 3lmed GmbH Mixer and method for mixing two components
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    US7806297B2 (en) 2001-11-16 2010-10-05 3M Innovative Properties Company Device for storing, mixing and dispensing a free-flowing material
    US8322909B2 (en) 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
    WO2012116873A1 (en) 2011-03-03 2012-09-07 Sulzer Mixpac Ag Static mixer for a multicomponent dispensing appliance
    DE102012003390A1 (en) 2011-08-24 2013-02-28 Kettenbach Gmbh & Co. Kg Double cartridge and mixer combination for use in dental field, has rib provided at inlet end of mixer and extending to axes of inlet nozzles, where widths of channel and rib are adjusted to each other for guiding mixer into cartridge
    WO2013026717A1 (en) 2011-08-24 2013-02-28 Kettenbach Gmbh & Co. Kg Cartridge system and static mixer therefor
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    Also Published As

    Publication number Publication date
    JPH0866627A (en) 1996-03-12
    DE59407962D1 (en) 1999-04-22
    US5498078A (en) 1996-03-12
    JP3591899B2 (en) 2004-11-24
    EP0664153A1 (en) 1995-07-26

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