EP2747900B1 - Mélangeur et dispositif de distribution - Google Patents

Mélangeur et dispositif de distribution Download PDF

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Publication number
EP2747900B1
EP2747900B1 EP12746331.3A EP12746331A EP2747900B1 EP 2747900 B1 EP2747900 B1 EP 2747900B1 EP 12746331 A EP12746331 A EP 12746331A EP 2747900 B1 EP2747900 B1 EP 2747900B1
Authority
EP
European Patent Office
Prior art keywords
mixer
coupling element
outlet
opening
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12746331.3A
Other languages
German (de)
English (en)
Other versions
EP2747900A1 (fr
Inventor
Alexander Bublewitz
Jens-Peter Reber
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.)
Kettenbach GmbH and Co KG
Original Assignee
Kettenbach GmbH and Co KG
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 Kettenbach GmbH and Co KG filed Critical Kettenbach GmbH and Co KG
Publication of EP2747900A1 publication Critical patent/EP2747900A1/fr
Application granted granted Critical
Publication of EP2747900B1 publication Critical patent/EP2747900B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/52—Receptacles with two or more compartments
    • B01F35/522—Receptacles with two or more compartments comprising compartments keeping the materials to be mixed separated until the mixing is initiated
    • 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
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread 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
    • 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
    • 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
    • B01F33/50112—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 syringe or cartridge type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/56—General build-up of the mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/714—Feed mechanisms for feeding predetermined amounts
    • 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
    • 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
    • B05C17/00576—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B05C17/00579—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/9029—With coupling

Definitions

  • the invention relates to a mixer having a coupling element with inlet nozzle, a mixer housing rotatable relative to the coupling element, which has an outlet opening and an opposite inlet end, in which the coupling element is accommodated, and a mixer element accommodated in the mixer housing, which defines a longitudinal axis of the mixer. Furthermore, the invention relates to a dispenser with at least two interconnected containers and such a mixer.
  • WO 2011/041917 discloses the features of the preamble of claims 1 and 12.
  • a mixer of the type mentioned and a corresponding dispensing device are, for example, from the EP 0 733 022 B1 known, wherein the mixer can be locked by means of a bayonet lock on the cartridge.
  • the seal between the coupling element of the mixer and the mixer housing takes place between an approximately cylindrical outer wall of the coupling element and a corresponding inner wall of the mixer housing.
  • the from the EP 0 733 022 B1 Known mixer is a so-called static mixer, ie a mixer in which the mixer element is not rotatably driven.
  • a similar dispenser is also from the US 5,333,760 or the EP 0 730 913 B1 known.
  • the EP 1 968 751 B1 describes a mixer and a dispenser, wherein the mixer consists only of a mixer housing and a mixer element received therein. Both the mixer housing and the mixer element take on functions of a coupling element for connection to a cartridge housing.
  • a double cartridge and a connectable static mixer are described.
  • the connection between the mixer and the double cartridge takes place via a bayonet connection, which is provided on a cap, which surrounds the coupling element and the mixer housing and is rotatable relative thereto.
  • the coupling element is designed in one piece with the mixer element, wherein these in turn are rotatably mounted in the mixer housing.
  • a similar solution with a union nut is from the EP 1 440 737 A1 known.
  • the components of the mixer can also be welded together, for example.
  • a connection of the components of the mixer by means of a latching mechanism which is susceptible to leakage as described above
  • the components can also be welded together, for example.
  • ultrasonic welding By means of an ultrasonic welding.
  • this is expensive and therefore unfavorable for mixers that are disposable.
  • connection between the mixer and the cartridge requires, for example, in the solutions according to the EP 0 733 022 B1 or the EP 2 335 641 A1 a visual control and an exact placement of the mixer in a predetermined position. This is partly perceived as laborious and impractical.
  • a special alignment of the coupling element relative to the mixer housing is required because the mixer is not otherwise placed on the cartridge can be. This requires an additional cost-producing assembly step including the required quality control.
  • the object of the present invention is therefore to provide a mixer and a dispenser of the type mentioned above, which avoid the above-mentioned disadvantages of known mixer and in particular allow an improved connection between the mixer and the cartridge and an improved sealing of the mixer itself.
  • the inlet end of the mixer housing is provided with an external thread.
  • the screw connection by means of a thread allows the inclusion of larger loads compared to other types of connection, for example.
  • a only selectively acting bayonet lock allows the inclusion of larger loads compared to other types of connection, for example.
  • a only selectively acting bayonet lock The risk that the mixer flakes off the cartridge can thus be minimized even at high discharge pressure.
  • a particular advantage also results from the fact that the mixer housing itself is provided with the external thread, since the power flow takes place at high discharge pressure directly between the mixer housing and the cartridge and thus no additional component, such as. From the prior art known union nuts or caps, as potential vulnerabilities are provided.
  • in a screw unlike a bayonet closure, neither an exact alignment of the mixer to a cartridge or the like. Still required between the mixer housing and the coupling element.
  • the components to be mixed in the mixer are in different volumes. Accordingly, the inlet nozzle of the mixer and the outlet of the cartridge can be different be designed large.
  • the coupling element has a positioning tongue which extends parallel to the inlet nozzles and projects beyond the inlet nozzles in the direction away from the outlet opening.
  • a positioning tab can prevent the mixer from being attached to it in misalignment with the cartridge. In particular, this also makes it possible to prevent unwanted contact of the mixer inlet connection with the outlet connection or openings of the cartridge, which can lead to mixing of the components already in the region of the cartridge, which then harden and render the cartridge useless.
  • an opening may also be provided on the mixer into which a positioning tongue or the like of the cartridge engages.
  • the positioning tongue tapers in the direction away from the outlet opening. This facilitates “finding" the positioning tab and a corresponding opening contour. At the same time, this can lead to a pre-alignment of the coupling element relative to the cartridge, so that the inlet nozzle and the outlet nozzle meet in an ideal orientation.
  • attaching a mixer according to the invention to a cartridge takes place with the following steps: First, the positioning tongue comes into contact with the corresponding receptacle on the cartridge from a certain point on, with initially there being play between the positioning tab and the receptacle in the cartridge. Thereafter, the positioning tongue acts as a guide rail in a, for example tapered, channel in the cartridge. As a result, the mixer is thereby automatically centered and aligned in the cartridge by the axial insertion of the positioning tongue.
  • the thread is a multi-start thread, in particular a three-piece thread.
  • the thread is a multi-start thread, in particular a three-piece thread.
  • the threads of the mixer and corresponding threads of the cartridge are set back so that the mixer can first be introduced with its mixer housing in an example. Sleeve-like recording of the cartridge and only then the two threads interlock.
  • the mixer is configured such that the coupling element has sealing means on its side facing the outlet opening.
  • the sealing effect between the coupling element and the mixer housing is improved by tightening the screw connection of the mixer with a cartridge.
  • the sealing effect is also improved by an application pressure acting on the coupling element. As the pressure increases, the coupling element consequently also seals more strongly with respect to the mixer housing in the case of such an end-side seal.
  • the coupling element on its side facing the outlet opening has two annular projections, between which a circumferential groove is formed, in which a ring-like projection of the mixer housing sealingly engages.
  • an annular tongue and groove connection is created between the mixer housing and the coupling element, which allows a rotation of the coupling element relative to the mixer housing, but also achieved a particularly good sealing effect.
  • this axial seal can also be constructed in reverse, ie with a groove in the mixer housing into which a ring-like projection of the coupling element engages.
  • an additional threaded connection between the coupling element and the mixer housing may be formed, so that the coupling element is pulled in a relative rotation of the mixer housing during attachment of the mixer to a cartridge with a defined by the additional thread stroke in the mixer housing. This ensures a defined sealing effect.
  • axial sealing constitutes a preferred embodiment of the invention. Nevertheless, it is alternatively possible to provide a radial seal, for example by means of a radial groove in the mixer housing and a ring-like projection in the coupling element, instead of the axial seal.
  • the inlet ports of the coupling element expediently extend parallel to the longitudinal axis of the mixer and thereby form channels which preferably open via at least one radial opening into a mixing chamber formed by the mixer housing, in which the mixer element is provided.
  • At least one of the channels opening into the mixing chamber can also be provided with a deflection, for example by a channel section extending approximately arcuately around the longitudinal axis of the mixer.
  • the mixer can be assembled in such a way that the coupling element and the mixer housing are already provided connected to one another the danger exists that the coupling element falls out of the mixer housing.
  • the steps required to assemble the mixer are thus reduced to the insertion of the mixer element into the mixer housing and the engagement of the coupling element in the mixer housing.
  • the coupling element is held freely rotatably in the mixer housing. This is necessary to allow on the one hand alignment of the inlet ports of the mixer to the corresponding outlet nozzle of the cartridge and on the other hand, the tightening of the mixer housing to the cartridge.
  • the coupling element can be arranged in any (rotational) position of the inlet nozzle to the mixer housing, without this would affect the process of connection of mixer and cartridge.
  • the coupling element is also held displaceably in the latter at least by a limited amount in the axial direction parallel to the longitudinal axis of the mixer.
  • This can be done, for example, in that the radial groove in the inlet end of the mixer housing in the axial direction is slightly larger than the latching projection of the coupling element.
  • the axial displaceability of the coupling element for example, less than 1 mm, in particular between 0.1 mm and 0.5 mm, relative to the mixer housing.
  • slight tolerances within the mixer can be compensated for when screwing the mixer onto a cartridge.
  • the mixer according to the invention can be used either as a static mixer, i. H. be configured with a non-driven mixer element, or as a dynamic mixer with a driven mixer element.
  • a static mixer i. H. be configured with a non-driven mixer element
  • a dynamic mixer with a driven mixer element.
  • an opening is formed in the coupling element, through which the mixer element can extend in such a way that it can be connected to a drive shaft. Often this is a hexagonal shaft, which can engage in a corresponding hexagon socket contour of the mixer element.
  • the invention also relates to a mixer having a coupling element with inlet nozzle, a mixer housing rotatable relative to the coupling element, which has an outlet opening and an opposite inlet end, in which the coupling element is accommodated, and a mixer element accommodated in the mixer housing, which defines a longitudinal axis of the mixer.
  • the coupling element is preferably provided with a bearing bush in which the mixer element is mounted rotatably and sealed.
  • the bearing bush is an approximately cylindrical component, which is held only with one end or only partially within the coupling element. A free end of the bearing bushes can bear sealingly against the mixer element, so that even slight angular deviations between the orientation of the longitudinal axis the mixer element and the longitudinal axis of the other mixer components can be compensated.
  • a bayonet fastening means may also be provided on the mixer housing for a dynamic mixer, which is formed, for example, by radially projecting bayonet tabs.
  • the orientation of the coupling element to the cartridge or the like is also preferred in dynamic mixers by means of a positioning tongue which engages in a corresponding opening contour.
  • the positioning tongue can also prevent a wrong orientation of the inlet nozzle to the outlet nozzle occurs.
  • the invention further relates to a dispenser having at least two interconnected containers having a common outlet area with outlet ports for each of the containers, and a mixer detachably connectable to the outlet area, having a coupling portion with inlet ports each connectable to an outlet nozzle Mixer housing and has a recorded in the mixer housing mixer element.
  • the outlet region of the container is equipped according to the invention with an internally threaded portion for connection to an externally threaded portion of the mixer housing. This is preferably a multi-start, in particular a three-part, thread.
  • the at least two containers of the dispensing device can be combined to form a cartridge, wherein the containers, for example, are provided parallel to one another or nested in one another.
  • either the outlet region of the container or the coupling element the mixer on a positioning tongue which may extend, for example, parallel to the inlet or outlet nozzle.
  • an opening contour for receiving the positioning tongue is provided in the coupling element of the mixer or in the outlet area of the container. This opening contour can z. B. larger than the positioning tongue or funnel-shaped to facilitate the introduction of the positioning tongue in the opening contour.
  • the positioning tongue preferably protrudes in the direction away from the outlet opening via the inlet nozzles of the mixer such that the inlet nozzles and the outlet nozzles only then engage with each other when the positioning tongue is at least partially included in the opening contour.
  • the threaded portions of the mixer and the container preferably engage each other only when the positioning tongue is received in the opening contour.
  • the positioning tongue is funnel-shaped in the opening slidably guided when the outlet nozzle with the inlet nozzle are sealingly pushed together.
  • the positioning tongue is in contact with the opening and aligns both the inlet and outlet ports to one another and the threads to one another. This is particularly relevant in a frequently occurring in practice mixer change to a cartridge inserted in a dispensing device, since the inlet and outlet are hidden here for a user in the rule, so it is important that the nozzle and thread by itself align.
  • the positioning tongue and the opening contour are designed such that the positioning tongue can be introduced into the opening contour only in exactly one position. This can be done, for example, in that the positioning tongue and the corresponding opening contour are curved, for example convex, configured or, for example, of asymmetrical design.
  • the outlet region of the containers is provided with a plate in which the outlet nozzles are flush and in which an opening contour for receiving the positioning tongue is provided.
  • an annular collar adjoins the plate, in which the internally threaded portion is formed.
  • ribs are formed in the plate which, for example, can be arranged between the outlet nozzles.
  • the ribs are opposite the plate in the direction of the mixer and thus prevent in addition that the mixer is placed incorrectly.
  • transverse ribbing between and / or below the outlet channels of the cartridge can avoid unwanted carryover of, for example, the catalyst paste or the base paste of a two-component mixture to the other channel. Soiling of the cartridge collar bottom with catalyst or base impression material, for example when pulling out the mixer to change the mixer - from a cartridge are up to 10 or more impressions, ie discharging with each new mixer made - are usually unavoidable in everyday use.
  • the transverse ribs catch the flowing mass in the area between the ribs and thus prevent rapid carryover to the other outlet channel. Contaminated material could lead to contamination of one component with the other component, ie prematurely Curing, clogging the channels or lead to instability of the filled material.
  • the Querverrippung has so besides the task of preventing incorrect insertion of the positioning tongue or the channels, the other important second function of preventing the carryover and contamination of the two pastes to each other's channel.
  • the invention relates to a dispenser having at least two interconnected containers having a common outlet area with outlet ports for each of the containers, and a closure member detachably connectable to the outlet area.
  • the outlet region of the container in this case has an internally threaded portion and the closure element latching means which are detachably fastened to the internal thread.
  • the container outlet nozzle and the closure element in this insertable plug, wherein the plug are connected via a torsion element with the locking means.
  • the closure element may be a one-piece component which can be snapped onto the cartridge and lifted by twisting.
  • the in the FIGS. 1 to 3 Dispenser 1 shown consists of a double cartridge 2 and a mixer 3, which is releasably connectable to the double cartridge 2.
  • the double cartridge 2 is formed in the illustrated embodiment by two integrally connected containers 4a, 4b, which have a different cross-section, to accommodate different volumes of two different components, in particular a base material and a catalyst mass for producing a dental product.
  • the two containers 4 a, 4 b are closed at their end facing away from the mixer 3 by dispensing pistons 5 a, 5 b, which can be advanced inside the double cartridge 2 in order to discharge the components received in the containers 4 a, 4 b through the mixer 3.
  • it is a so-called directly filled cartridge, in which the components are received directly in the containers 4a, 4b.
  • Each of the two containers 4a, 4b has an outlet connection 6a or 6b, wherein the outlet connections form a common outlet region of the double cartridge 2.
  • the two outlet ports 6a, 6b are provided with a plate 7 which extends perpendicular to the outlet ports 6a, 6b, so that the outlet ports 6a, 6b open flush into the plate 7.
  • a circumferential collar 8 away which is provided with an internal thread 9.
  • an arcuate opening 10 is formed.
  • Between the two containers 4a, 4b of the double cartridge 2 extends a channel for receiving a drive shaft (not shown), which also opens flush in a central opening 7a in the plate 7. Notwithstanding the illustrated embodiment, the openings 7a and 10 may also be formed as a common opening.
  • the mixer 3 consists of a mixer housing 11, which forms a mixing chamber in its interior, a mixer element 12 received in the mixer housing and a coupling element 13 (cover), which is connectable to the mixer housing.
  • the mixer housing 11 is provided at its end facing away from the double cartridge 2 with an outlet opening 14, which is tapered with respect to the mixing chamber forming the cylindrical portion of the mixer housing 11.
  • the inlet end of the mixer housing 11 opposite the outlet opening 14 is widened like a pot in order to receive the coupling element 13.
  • the coupling element 13 may be latched in the mixer housing 11 by a circumferential groove 15 is formed in the mixer housing 11, in which an annular latching projection 16 can engage on the outside of the coupling element 13.
  • the coupling element 13 is thus freely rotatably received in the mixer housing 11.
  • the coupling element 13 may slightly, for example. Less than about 1 mm, move in the axial direction relative to the mixer housing 11.
  • the mixer 3 shown in the figures is a dynamic mixer in which the mixing element 12 can be driven via the drive shaft (not shown).
  • the mixer element 12 extends through a central opening in the coupling element 13 and can engage in the central opening 7a in the plate 7 of the outlet end of the double cartridge 2.
  • the mixer element 12 carries a plurality of mixing vanes, with which the components discharged from the double cartridge 2 can be mixed together in the mixing space before they emerge from the outlet opening 14.
  • the mixer housing is provided with an external thread 17, which is provided on the outside of the pot-like enlarged inlet end of the mixer housing 11.
  • the external thread 17 and the internal thread 9 are for connection of the mixer 3 with the double cartridge 2 matched.
  • the threads are a three-piece thread with three threaded sections. This makes it possible to bring the threads 9 and 17 into engagement with each other at three points offset by 120 ° from each other.
  • only a slight rotation of the mixer 3 relative to the double cartridge 2 is required to screw the mixer onto the double cartridge.
  • the threaded connection can be designed in such a way that a defined latching position is perceptibly and / or audibly displayed upon complete tightening of the mixer 3 on the double cartridge 2. This can be done, for example, that the thickness of the thread segments (spiral thread ribs) at the end of the screw slightly increases and then drops, so that a small resistance must be overcome in order to tighten the thread completely or to solve.
  • wings 18 are provided on the outside of the mixer housing, which facilitate the manual screwing of the mixer 3.
  • the wings 18 extend between a collar 19 which surrounds the cylindrical part of the mixer housing 11, and the pot-like extended inlet end of the mixer housing.
  • the collar 19 has the advantage that the wings 18 can not lead to any irregular shrinkage distortion in the cylindrical part of the mixer housing 11. This in turn ensures that the mixing vanes of the mixer element 12 can be stripped with very narrow tolerances on the cylindrical inner wall of the mixing chamber formed by the mixer housing 11. This is advantageous for a homogeneous mixture.
  • other means may be provided which facilitate manual screwing of the mixer 3, for example a (multi) angular configuration of areas of the mixer housing 11.
  • the embodiment of the coupling element 13 is made of the FIGS. 7 to 9 can be seen, wherein FIG. 7 the double cartridge 2 facing back and FIG. 8 the opposite front of the coupling element 13 show.
  • two inlet ports 20a, 20b are formed, which protrude in the direction of the double cartridge 2 from a rear wall of the coupling element 13. How out FIG. 1 can be seen, the size of the inlet nozzle 20a, 20b is selected so that they can be inserted into the outlet port 6a and 6b of the dual cartridge 2.
  • the inlet ports 20a, 20b form channels which extend parallel to the longitudinal axis of the mixer, ie parallel to the axis of rotation of the mixer element 12.
  • the channels open radially into a region which forms the mixing chamber of the mixer housing 11.
  • the opening 21 a for the larger volume component is reduced by a bulkhead 22 in its opening cross section, whereby a lead of this component can be prevented.
  • a positioning tongue 23 is formed on the coupling element 13, which also extends from the rear side of the coupling element 13 in the direction of the double cartridge 2.
  • the positioning tongue 23 is convexly curved in the illustrated exhibition shape and adapted to the contour of the opening 10 in the plate 7 of the double cartridge 2.
  • the positioning tab 23 protrudes toward the dual cartridge 2 beyond the inlet ports 20a, 20b.
  • the end of the mixer element 12 projecting from the coupling element 13 can engage in the central opening of the plate 7.
  • the positioning tongue 23 is tapered at its free end tapered or rounded.
  • the opening 10 may be larger than the positioning tongue 23 and / or tapered.
  • a bearing bush 24 is provided in the coupling element 13, in which the mixing element 12 is rotatably mounted.
  • the bearing bush 24 in this case has a free end directed in the direction of the outlet opening 14 of the mixer 3, while the opposite end of the bearing bush 24 terminates in the rear wall of the coupling element 13. The free end of the bearing bush 24 can thus rest sealingly on the mixer element 12.
  • two circumferential, annular projections 25a, 25b are provided concentrically with each other, so that between these a circumferential groove 25c is formed. Accordingly, in the pot-like widening inlet end of the mixer housing 11, an annular circumferential projection 26 is formed, which can engage in the groove 25c. In the not yet bolted to the double cartridge 2 state of the mixer 3, a slight clearance between the free end of the annular projection 26 and the groove bottom of the groove 25c may be present, so that the coupling element 13 is rotatable within the mixer housing 11 smoothly.
  • the coupling member 13 becomes slightly axially relative to the mixer housing 11 in the axial direction to the outlet port 14 of the mixer 3 so that the free end of the annular projection 26 sealingly rests against the groove bottom of the groove 25c formed between the projections 25a and 25b. Even with increasing application pressure, for example.
  • the coupling element 13 is pressed in the direction of the outlet opening 14, so that the seal between the annular projection 26 and the groove bottom seals more.
  • the collar 8 of the double cartridge 2 and the inlet portion of the mixer 3 are designed so that the respective threads 9, 17 are slightly recessed, so that the mixer 3 can first be inserted into the collar 8, without the threads interlock. In this position, the mixer 3 can be aligned by turning relative to the double cartridge 2 until the positioning tongue 23 hits the opening 10. Only then do the threads engage each other and the inlet sockets are guided into the outlet sockets. In other words, the mixer 3 can be placed completely on the double cartridge 2 only in a single position. It is therefore not possible that a cross contamination of the mixer inlet with the cartridge outlet is carried out in advance.
  • the inlet nozzle of the mixer with the larger diameter may be made longer than the other inlet nozzle with the smaller diameter (eg catalyst component). Also in this way can be done positioning and alignment, since the larger inlet port can be plugged into any other opening within the plate 7 as the opening of the corresponding outlet nozzle. A positioning tongue can thus be omitted.
  • the invention also relates to a in the FIGS. 10 and 11 shown one-piece closure element 27, which instead of the mixer 3 can be placed on the double cartridge 2.
  • two plugs 28a, 28b are provided, which can be inserted sealingly into the outlet stubs 6a and 6b.
  • the plugs 28 a, 28 b are connected via a web 29, which acts as a torsion spring, with a sleeve 30, which can be inserted into the collar 8 of the outlet end of the double cartridge 2.
  • An extended edge of the sleeve 30, which is provided with a knurling 31, rests on the end face of the collar 8, when the closure member 27 is sealingly placed on the double cartridge 2.
  • the closure element 27 can be secured in the collar 8 by means of latching hooks 32, which engage behind the thread segments of the internal thread 9 and thus lock the closure element 27 on the double cartridge.
  • latching hooks 32 engage behind the thread segments of the internal thread 9 and thus lock the closure element 27 on the double cartridge.
  • the sleeve 30 can be slightly rotated with the knurling 31, wherein the web 29 twists because the plugs 28a, 28b initially stuck in the outlet port 6a and 6b.
  • This twisting of the web 29 acting as a torsion element makes it possible for the latching hooks 32 to be disengaged from the thread segments of the internal thread 9 so that the closure element 27 can be removed from the double cartridge 2.
  • FIG. 12 A preferred embodiment of the design of the dispenser is in FIG. 12 shown.
  • ribs 33 are formed between or under the outlet stubs 6a, 6b on the plate 7, which protrude with respect to the plate 7.
  • this prevents incorrect fitting of a mixer, so that the positioning tongue 23 is easier to find in the opening 10 and, on the other hand, can prevent material from being carried over.
  • material leakage from the inlet and / or outlet nozzles can seldom be completely avoided.
  • transverse ribs 33 catch such material components in the region between the ribs and thus prevent a rapid carryover to the respective other outlet channel.
  • the in the FIGS. 13 and 14 shown mixer has on the coupling element 13 annular end-side sealing surfaces 34 which are provided around the inlet channels 20a, 20b around and on which the respective outlet nozzle 6a, 6b of the cartridge come to rest. These sealing surfaces cause an additional end-side sealing effect to the radial sealing surface on the outer circumference of the nozzle.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Package Specialized In Special Use (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Accessories For Mixers (AREA)

Claims (15)

  1. Mélangeur avec un élément d'accouplement (13) avec des tubulures d'admission (20a, 20b), un boîtier de mélangeur (11) rotatif par rapport à l'élément d'accouplement (13), lequel comporte une ouverture d'évacuation (14) et une extrémité d'admission opposée, dans laquelle est reçu l'élément d'accouplement (13), et avec un élément de mélange (12) reçu dans le boîtier de mélangeur (11) et définissant un axe longitudinal du mélangeur, dans lequel l'extrémité d'admission du boîtier de mélangeur (11) comporte un filet extérieur (17) destiné à l'assemblage avec une cartouche, caractérisé en ce que l'élément d'accouplement (13) comporte une languette de positionnement (23) s'étendant parallèlement aux tubulures d'admission (20a, 20b), laquelle fait saillie au-delà des tubulures d'admission (20a, 20b) dans la direction opposée à l'ouverture d'évacuation (14).
  2. Mélangeur selon la revendication 1, caractérisé en ce que l'élément d'accouplement (13) comporte des moyens d'étanchéité (25a, 25b, 25c) sur son côté tourné vers l'ouverture d'évacuation (14).
  3. Mélangeur selon la revendication 1 ou 2, caractérisé en ce que l'élément d'accouplement (13) comporte des saillies (25a, 25b) sur son côté tourné vers l'ouverture d'évacuation (14), entre lesquelles est formée une rainure périphérique (25c) dans laquelle s'engage de façon étanche une saillie annulaire (26) du boîtier de mélangeur (11).
  4. Mélangeur selon l'une des revendications précédentes, caractérisé en ce que les tubulures d'admission (20a, 20b) de l'élément d'accouplement (13) forment des canaux s'étendant parallèlement à l'axe longitudinal du mélangeur (3), lesquels débouchent respectivement dans une chambre de mélange formée par le boîtier de mélangeur (11), par le bais d'au moins une ouverture radiale (21a, 21b).
  5. Mélangeur selon la revendication 4, caractérisé en ce que la section transversale d'au moins l'une des ouvertures (21a) débouchant sur la chambre de mélange est rétrécie par une cloison (22).
  6. Mélangeur selon l'une des revendications précédentes, caractérisé en ce que la languette de positionnement (23) s'affine dans la direction opposée à l'ouverture d'évacuation (14).
  7. Mélangeur selon l'une des revendications précédentes, caractérisé en ce que l'élément d'accouplement (13) comporte au moins une saillie d'encliquetage (16) faisant saillie radialement vers l'extérieur, laquelle s'engage dans une rainure radiale (15) dans l'extrémité d'admission du boîtier de mélangeur (11).
  8. Mélangeur selon l'une des revendications précédentes, caractérisé en ce que l'élément d'accouplement (13) est maintenu libre en rotation dans le boîtier de mélangeur (11) et, le cas échéant, de façon déplaçable sur une course limitée dans une direction axiale parallèle à l'axe longitudinal du mélangeur (3).
  9. Mélangeur selon l'une des revendications précédentes, caractérisé en ce que l'élément d'accouplement (13) comporte une douille de palier (24) dans laquelle l'élément de mélange (12) est monté de façon rotative et étanche.
  10. Mélangeur selon la revendication 9, caractérisé en ce que des moyens de fixation à baïonnette sont prévus sur le boîtier de mélangeur (11), en particulier des pattes à baïonnette faisant saillie radialement.
  11. Mélangeur selon la revendication 9 ou 10, caractérisé en ce que l'élément d'accouplement (13) comporte une languette de positionnement (23) s'étendant parallèlement aux tubulures d'admission (20a, 20b), laquelle fait saillie au-delà des tubulures d'admission (20a, 20b) dans la direction opposée à l'ouverture d'évacuation (14).
  12. Dispositif de distribution avec au moins deux récipients (4a, 4b) reliés l'un à l'autre, lesquels présentent une région d'évacuation commune avec des tubulures d'évacuation (6a, 6b) pour chaque récipient (4a, 4b), et avec un mélangeur (3) apte à être raccordé de façon amovible à la région d'évacuation, en particulier selon l'une des revendications précédentes, lequel comporte un élément d'accouplement (13) avec des tubulures d'admission (20a, 20b) susceptibles d'être reliées respectivement à une tubulure d'évacuation (6a, 6b), un boîtier de mélangeur (11) et un élément de mélange (12) reçu à l'intérieur du boîtier de mélangeur (11), dans lequel la région d'évacuation des récipients (4a, 4b) comporte une partie intérieure filetée (9) destinée à être reliée à une partie extérieure filetée (17) du boîtier de mélangeur (11), caractérisé en ce que la région d'évacuation des récipients (4a, 4b) présente une plaque (7) dans laquelle se terminent les tubulures d'évacuation (6a, 6b) en affleurement, et un col annulaire (8) dans lequel est formée la partie intérieure filetée (9) prolonge la plaque.
  13. Dispositif de distribution selon la revendication 12, caractérisé en ce que la région d'évacuation des récipients (4a, 4b) ou l'élément d'accouplement (13) du mélangeur (3) présente une languette de positionnement (23) s'étendant parallèlement aux tubulures d'admission (20a, 20b) ou aux tubulures d'évacuation (6a, 6b), et en ce qu'un contour d'ouverture (10) pour la réception de la languette de positionnement (23) est prévu dans l'élément d'accouplement (13) du mélangeur (3) ou dans la région d'évacuation des récipients (4a, 4b).
  14. Dispositif de distribution selon la revendication 13, caractérisé en ce que la languette de positionnement (23) fait saillie au-delà des tubulures d'admission (20a, 20b) dans la direction opposée à l'ouverture d'évacuation (14), en ce que les tubulures d'admission (20a, 20b) et les tubulures d'évacuation (6a, 6b) viennent en prise les unes avec les autres seulement une fois que la languette de positionnement (23) est au moins partiellement reçue dans le contour d'ouverture (10), et/ou
    en ce que la languette de positionnement (23) et le contour d'ouverture (10) sont conçus de manière à ce que la languette de positionnement (23) ne puisse être insérée que dans une seule position dans le contour d'ouverture (10), et/ou
    en ce que la languette de positionnement (23) est guidée de façon coulissante en forme d'entonnoir dans l'ouverture (10) tandis que les tubulures d'évacuation (6a, 6b) et les tubulures d'admission (20a, 20b) sont enfoncées fermement les unes dans les autres.
  15. Dispositif de distribution selon l'une des revendications 12 à 14, caractérisé en ce qu'une ouverture centrale (7a) destinée à recevoir l'élément de mélange (12) est prévue dans la plaque (7), et/ou
    en ce que des nervures (33) sont formées dans la plaque (7).
EP12746331.3A 2011-08-24 2012-08-10 Mélangeur et dispositif de distribution Active EP2747900B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011111046 2011-08-24
PCT/EP2012/065738 WO2013026721A1 (fr) 2011-08-24 2012-08-10 Mélangeur et dispositif de distribution

Publications (2)

Publication Number Publication Date
EP2747900A1 EP2747900A1 (fr) 2014-07-02
EP2747900B1 true EP2747900B1 (fr) 2015-07-29

Family

ID=46651502

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12744011.3A Active EP2747899B1 (fr) 2011-08-24 2012-08-10 Système de cartouche et mélangeur statique associé
EP12746331.3A Active EP2747900B1 (fr) 2011-08-24 2012-08-10 Mélangeur et dispositif de distribution

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Application Number Title Priority Date Filing Date
EP12744011.3A Active EP2747899B1 (fr) 2011-08-24 2012-08-10 Système de cartouche et mélangeur statique associé

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US (3) US9550159B2 (fr)
EP (2) EP2747899B1 (fr)
BR (1) BR112014004109B1 (fr)
DE (1) DE202012013429U1 (fr)
ES (1) ES2714273T3 (fr)
IN (1) IN2014CN02197A (fr)
WO (2) WO2013026721A1 (fr)

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EP3135368A1 (fr) 2015-08-28 2017-03-01 Sulzer Mixpac AG Mélangeur statique, procédé d'assemblage d'un tel mélangeur et appareil de distribution
CA3070174C (fr) * 2017-07-28 2022-03-22 3lmed GmbH Melangeur avec conduit de compensation et/ou chambre de stockage
DE102017117557A1 (de) 2017-08-02 2019-02-07 3lmed GmbH Applikationssystem
DE102019101640A1 (de) 2019-01-23 2020-07-23 3lmed GmbH Kartusche
DE102019101644B4 (de) * 2019-01-23 2021-02-18 3lmed GmbH Mischer und Verfahren zum Vermischen zweier Komponenten
DE102019009116B4 (de) 2019-01-23 2021-02-25 3lmed GmbH Mischer und Verfahren zum Vermischen zweier Komponenten
DE102019101645A1 (de) 2019-01-23 2020-07-23 3lmed GmbH Applikationssystem mit zweifachem Originalitätsverschluss
PL3733271T3 (pl) * 2019-04-30 2023-09-04 Ritter Gmbh Mieszalnik ze zbiornikami uspokajającymi
CN110201571B (zh) * 2019-06-20 2021-08-06 山东润禾钾盐科技有限公司 一种复混肥料混合搅拌设备
WO2024133489A1 (fr) 2022-12-23 2024-06-27 Dosaplast Gmbh Cartouche avec élément de verrouillage

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Also Published As

Publication number Publication date
DE202012013429U1 (de) 2017-01-13
ES2714273T3 (es) 2019-05-28
US20140301154A1 (en) 2014-10-09
US20170157581A1 (en) 2017-06-08
EP2747899B1 (fr) 2018-12-05
US20140290773A1 (en) 2014-10-02
US9550159B2 (en) 2017-01-24
BR112014004109A2 (pt) 2017-03-14
IN2014CN02197A (fr) 2015-05-29
EP2747899A1 (fr) 2014-07-02
US9782737B2 (en) 2017-10-10
BR112014004109B1 (pt) 2020-11-10
EP2747900A1 (fr) 2014-07-02
US9700859B2 (en) 2017-07-11
WO2013026721A1 (fr) 2013-02-28
WO2013026717A1 (fr) 2013-02-28

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