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EP2258466A1 - Système de mélange pour cartouche à deux composants - Google Patents

Système de mélange pour cartouche à deux composants Download PDF

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Publication number
EP2258466A1
EP2258466A1 EP09007452A EP09007452A EP2258466A1 EP 2258466 A1 EP2258466 A1 EP 2258466A1 EP 09007452 A EP09007452 A EP 09007452A EP 09007452 A EP09007452 A EP 09007452A EP 2258466 A1 EP2258466 A1 EP 2258466A1
Authority
EP
European Patent Office
Prior art keywords
mouthpiece
outlet channel
mixing
central
component
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.)
Withdrawn
Application number
EP09007452A
Other languages
German (de)
English (en)
Inventor
Frank Georg Ritter
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.)
Ritter GmbH
Original Assignee
Ritter GmbH
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 Ritter GmbH filed Critical Ritter GmbH
Priority to EP09007452A priority Critical patent/EP2258466A1/fr
Priority to EP10005821A priority patent/EP2258468B1/fr
Priority to US12/802,446 priority patent/US8894270B2/en
Publication of EP2258466A1 publication Critical patent/EP2258466A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B01F33/50114—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 of the hand-held gun type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3216—Rigid containers disposed one within the other
    • B65D81/3227—Rigid containers disposed one within the other arranged parallel or concentrically and permitting simultaneous dispensing of the two materials without prior mixing

Definitions

  • Two-component cartridges for plastic compositions such as sealants, adhesives, dental molding compounds or other materials are known. They have two chambers, which are often arranged coaxially and often formed by two nested coaxial tubular body, which are nested with their mouthpiece areas.
  • a first chamber is formed by the interior of the inner tubular body and a second chamber is formed as an annular chamber between the outer and the inner tubular body.
  • the two tubular bodies are held in their coaxial position by the annular piston closing the outer annular chamber.
  • the nested mouthpieces of the two tubular bodies form outlets for the material components in the inner first chamber and the outer second chamber, respectively.
  • the two-chamber cartridge is closed by a cap, with which it is resealable even when work is interrupted.
  • a mixer is screwed onto the mouthpiece neck of the outer tubular body, which has a mixing tube in which a number of mixing bodies are housed axially one behind the other, around the first material component emerging from the first chamber with the material component emerging from the second chamber as quickly as possible and as far as possible to mix homogeneously. At the end of the mixing tube then a completely homogeneous mixture of the two material components should emerge.
  • the one problem is to ensure that the two components of the material are completely separate from each other before the two-component cartridge is broken and can not come into contact with one another to prevent premature reaction of the two components with each other and their setting or curing.
  • the cap on the one hand, the mouthpiece assembly of the two tubular body as a whole closes absolutely tight, and that the cap also makes a completely sealing separation of the outlets from the first chamber and the second chamber.
  • the second problem is the design of the mixing system such that a homogeneous mixing of the two material components with a possible few mixing elements containing possible short mixing tube is made possible, because the necessary extrusion pressure of the two-component cartridge, of course, the greater, the greater the number of axially successive mixing elements in Mixing tube is, because every other mixing element increases the flow resistance. This problem is all the more significant the more viscous the material components to be squeezed out and mixed are.
  • the mouthpiece portion of the inner tube body which is inserted into the mouthpiece portion of the outer tube body, formed with a coronary arrangement of separate segmental or cylindrical outlet channels, the star-like sitting in the mouthpiece portion of the outer tubular body, wherein the circumferential spaces between the individual outlet channels of the mouthpiece portion of the inner Pipe body, which form the outlet channels for the first material component, forming the outlet channels for the second material component.
  • the material strands of the first material component and the second material component which alternate in the circumferential direction then enter into the inlet end of the mixer as a parallel strand bundle.
  • the second is the circumstance that the closure cap must individually close each of the outlet channels of the mouthpiece part of the inner tube body and for this purpose must have a pin engaging in the respective outlet channel and sealingly closing.
  • the tightness is difficult to achieve even with a wreath of cylindrical pin for cylindrical outlet channels and even more difficult to achieve in cross-sectionally annular outlet channels.
  • the closure cap must be formed in two parts and have an inner plug part, on which the locking channels engaging in the outlet channels are formed, and have a threaded sleeve which can be screwed onto the mouthpiece neck of the outer tubular body.
  • the object of the invention is to provide an arrangement which brings a significant improvement in both problems.
  • the arrangement according to the invention embodies a mixing system whose decisive features are provided partly in the mouthpiece region of the two-component cartridge and partly in the mixer, and which advantageously cooperate with one another when the mixer is placed on the mouthpiece arrangement.
  • the arrangement according to the invention consists essentially in that a single, approximately cylindrical outlet channel of the mouthpiece part of the inner tubular body extends only at its outlet end in the form of a coronary arrangement of several outwardly diverging pocket-like extensions in the light cross section of the annular to this outlet channel for the first Material component extending outlet channel for the second material component in the mouthpiece part of the outer tube body.
  • the mixer has at its inlet end in front of the first mixing element a knob-like shaped central body, which is preferably formed with a counter-flow direction pointing Ablenkspitze, and which, when the mixer is placed on the mouthpiece assembly in the outlet end of the outlet channel for the first material component (in Interior of the first tubular body) protrudes and causes the emerging through the approximately cylindrical outlet channel first material component is deflected radially outwardly into the pocket-like extensions and thereby forms a plurality of strands of material which extend with an axial component and a radially outwardly diverging direction component.
  • the flowing through the annular outflow between the mouthpiece parts of the inner tube body and the outer tube body second material component is also divided by the flow obstacles, which are formed by the pocket-like extensions of the outlet channel of the first material component in several strands of material alternately in the circumferential direction with those through the pocket-like expansions emerging material strands of the first material component are arranged.
  • the second material component experiences a respective lateral flow deflection, for which reason the material strands of the second material component associated with circumferential direction components and thereby immediately takes place mixing with the material strands of the first material component, even before the strands of material reach the first mixing element in the mixing tube of the mixer.
  • the inventive arrangement allows a significant reduction in the number of mixing elements in the mixing tube of the mixer to achieve a homogeneous mixing of the two material components and a very significant reduction of the necessary extrusion pressure. This is due to the following advantages:
  • both the first material component and the second material component flow through large, uniform opening cross-sections, up to the point where the inner exit passage for the first material component in the shape of the coronary pocket-like extensions widens into the annular flow passageway for the second material component ,
  • the total flow area something, which sets an intensification of the premixing due to the not only axial direction components, but also the existing circumferential direction components of the currents.
  • this area of the cross-sectional reduction is axially very short, which is why the flow resistance induced thereby is low.
  • the subsequent mixing process until reaching a homogeneous mixture of the two material components then only requires a relatively small number of mixing elements in the mixing tube.
  • the invention thus brings a very significant advantage in terms of the efficiency of mixing the two material components, the number of mixing elements required in the mixing tube, and consequently a very significant reduction of the necessary extrusion pressure, which brings a great advantage especially for viscous masses.
  • the arrangement according to the invention greatly simplifies the design of the closure cap and its sealing safety. Because the inner outlet channel for the first material component is arranged cylindrically and centrically and only one such channel is present, the closure cap can be integrally formed and a single have central plug, which engages in the cylindrical part of the outlet channel for the first material component and closes this absolutely tight.
  • the Fig. 1 and 4 each show in axial section the mouthpiece-side end portion of a two-component cartridge.
  • the two-component cartridge after the Fig. 1 and 4 consists of an outer tube body 1 with a front end wall 2 and a mouthpiece part 3, which is provided with an external thread 4, and an inner tube body 5 with a mouthpiece part 6.
  • the inner tube body 5 is arranged coaxially in the outer tube body by the mouthpiece part 6 of inner tubular body 5 is inserted into the mouthpiece part 3 of the outer tubular body 1 and locked there.
  • the inner tubular body 5 forms with its inner space 7 a first chamber for receiving a first material component
  • the outer tubular body 1 forms between it and the inner tubular body 5, an annular second chamber 8 for receiving a second material component.
  • the mouthpiece part 6 of the inner tube body 5 forms a cylindrical outlet channel 9 for the first material component
  • the mouthpiece part 3 of the outer tube body 1 forms between it and the mouthpiece part 6 of the inner tube body 5 an annular outlet channel 10 for the second material component.
  • the axially rear, latched in the mouthpiece part 3 of the outer tubular body 1 portion of the mouthpiece part 6 of the inner tubular body 5 has along its circumference a plurality of passageways for connecting the annular second chamber 8 with the annular outlet channel 10, which in the drawing figures 1 and 4 are not visible, because the local section passes through the Verrastungsrippen 11 of the mouthpiece part 6 of the inner tube body 5.
  • Fig. 1 and 4 differ in that in Fig. 1 a mixer 12 is screwed onto the mouthpiece assembly while in Fig. 4 a cap 13 is screwed onto the mouthpiece assembly.
  • the mixer 12 has a mixing tube 14, which is widened at its inlet end to a threaded sleeve 15 which is screwed onto the external thread 4 of the mouthpiece part 3 of the outer tubular body 1, and takes in the mixing tube 14 a number of axially successive, known per se Mixing elements 16, which rotate and divide the strands of material again and again, thus causing the mixing.
  • Fig. 3 shows in perspective view the front end portion of the inner tube body 5 with its mouthpiece part 6.
  • Verrastungsrippen 11 and the circumferentially formed between these passageways 17 are visible in detail, which connect the second chamber 8 with the annular outlet channel 10.
  • the end of the cylindrical outlet channel 9 of the mouthpiece portion 6 of the inner tubular body 5 extends in its exit end region in the form of four cross-shaped or star-shaped pocket-like extensions 18 which converge radially outwardly and, like from the Fig. 1 and 4 is visible in section, in the outlet cross-section of the annular outlet channel 10 between the mouthpiece parts 3 and 6 of the outer tubular body 1 and the inner tubular body 5 in running.
  • Fig. 1 It can be seen that has the mixing elements 16 of the mixer 12 existing mixer insert at its lower, ie inlet end a central pin 19 which terminates in a knob-like central body 20, which, when the mixer 12 is placed on the mouthpiece assembly 3, 6, in the outlet end of the inner cylindrical outlet channel 9 protrudes and closes its central region, so that the first material component emerging from this outlet channel 9 is divided into four strands of material flowing obliquely radially and axially through the pocket-like extensions 18.
  • the central body 20 preferably has, as shown, an upstream pointing Ablenkspitze 21, which, as shown, may be formed as an approximately cylindrical and rounded pin or conical.
  • the emerging from the annular outlet channel 10 second material component is then also divided by the pocket-like extensions 18 of the outlet channel 9 in several strands of material extending between the strands of material of the first material component and obtained by each taking place in the circumferential direction marflection through the pocket-like extensions 18 a cross-directional component , which favors the immediate mixing with the material strands of the first material component.
  • Fig. 1 This consists of one piece and has on its end wall 22 a molded cylindrical hollow pin 23 whose axial length is dimensioned so that when screwing the cap 13 on the external thread 4 of the mouthpiece part. 3 of the outer tubular body 1 engages in the cylindrical part of the outlet channel 9 of the mouthpiece part 6 of the inner tubular body 5 and sealingly seals it.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
EP09007452A 2009-06-05 2009-06-05 Système de mélange pour cartouche à deux composants Withdrawn EP2258466A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09007452A EP2258466A1 (fr) 2009-06-05 2009-06-05 Système de mélange pour cartouche à deux composants
EP10005821A EP2258468B1 (fr) 2009-06-05 2010-06-04 Système de mélange pour cartouche à deux composants
US12/802,446 US8894270B2 (en) 2009-06-05 2010-06-07 Mixing system for two-component cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09007452A EP2258466A1 (fr) 2009-06-05 2009-06-05 Système de mélange pour cartouche à deux composants

Publications (1)

Publication Number Publication Date
EP2258466A1 true EP2258466A1 (fr) 2010-12-08

Family

ID=41254671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09007452A Withdrawn EP2258466A1 (fr) 2009-06-05 2009-06-05 Système de mélange pour cartouche à deux composants

Country Status (1)

Country Link
EP (1) EP2258466A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484694A (en) * 2010-10-20 2012-04-25 Chemfix Products Ltd Mixing extruded materials
EP2764909A2 (fr) 2013-02-08 2014-08-13 CHEMOFAST Anchoring GmbH Dispositif de mélange pour cartouches bicomposants
US8899446B2 (en) 2010-04-28 2014-12-02 Integra Adhesives Inc. Apparatus for mixing and dispensing multiple flowable components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207048U1 (de) * 1992-05-25 1992-07-30 Chemofast Korte-Jungermann GmbH & Co KG, 4156 Willich Statikmischer
DE20316879U1 (de) * 2003-10-31 2005-03-17 Sulzer Chemtech Ag Winterthur Koaxial-Zweikomponentenkartusche
WO2005095225A1 (fr) 2004-04-01 2005-10-13 5 Mix Limited Dispositif de distribution pour deux composants et procede de distribution d'un premier et d'un second composant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207048U1 (de) * 1992-05-25 1992-07-30 Chemofast Korte-Jungermann GmbH & Co KG, 4156 Willich Statikmischer
DE20316879U1 (de) * 2003-10-31 2005-03-17 Sulzer Chemtech Ag Winterthur Koaxial-Zweikomponentenkartusche
WO2005095225A1 (fr) 2004-04-01 2005-10-13 5 Mix Limited Dispositif de distribution pour deux composants et procede de distribution d'un premier et d'un second composant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8899446B2 (en) 2010-04-28 2014-12-02 Integra Adhesives Inc. Apparatus for mixing and dispensing multiple flowable components
GB2484694A (en) * 2010-10-20 2012-04-25 Chemfix Products Ltd Mixing extruded materials
GB2484694B (en) * 2010-10-20 2012-11-14 Chemfix Products Ltd Mixing extruded materials
EP2764909A2 (fr) 2013-02-08 2014-08-13 CHEMOFAST Anchoring GmbH Dispositif de mélange pour cartouches bicomposants
DE102013002290A1 (de) 2013-02-08 2014-08-28 Chemofast Anchoring Gmbh Mischvorrichtung für Zweikomponentenkartuschen

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