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EP2747899B1 - Kartuschensystem und statischer mischer hierfür - Google Patents

Kartuschensystem und statischer mischer hierfür Download PDF

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Publication number
EP2747899B1
EP2747899B1 EP12744011.3A EP12744011A EP2747899B1 EP 2747899 B1 EP2747899 B1 EP 2747899B1 EP 12744011 A EP12744011 A EP 12744011A EP 2747899 B1 EP2747899 B1 EP 2747899B1
Authority
EP
European Patent Office
Prior art keywords
mixer
inlet
cartridge
mixing
connectors
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
EP12744011.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2747899A1 (de
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.)
3lmed GmbH
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
Priority claimed from PCT/EP2011/068784 external-priority patent/WO2012055926A1/de
Priority claimed from DE102012003390.7A external-priority patent/DE102012003390B4/de
Application filed by Kettenbach GmbH and Co KG filed Critical Kettenbach GmbH and Co KG
Priority to EP12744011.3A priority Critical patent/EP2747899B1/de
Publication of EP2747899A1 publication Critical patent/EP2747899A1/de
Application granted granted Critical
Publication of EP2747899B1 publication Critical patent/EP2747899B1/de
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 cartridge system with two containers, each having an outlet port and a joint opening provided with a positioning opening for a mixer, and with a static mixer with inlet nozzle and a positioning element. Furthermore, the invention relates to a static mixer, which is particularly suitable for use in such a cartridge system.
  • Cartridge systems of the type mentioned are from the WO 2011/041917 as well as from the EP 0 723 807 B1 known.
  • Such known cartridge systems usually have a bayonet connection for the connection between the static mixer and the containers of the cartridge.
  • An important aspect in connection between mixer and cartridge is often that the mixer should be placed in a certain position on the cartridge, so that the inlet and outlet ports meet, with a placement of the mixer is to be avoided in the wrong orientation.
  • the known cartridge systems can not reliably ensure that any contact between the inlet and outlet ports in the wrong orientation of the mixer relative to the cartridge is avoided. This can lead to so-called cross-contamination, ie the component from one of the outlet ports comes into contact with the component from the other outlet already in the inlet or outlet port and can react there and possibly harden, which is undesirable.
  • such mixers and cartridge systems sometimes have the problem that one of the components tends to advance from the components to be dispensed from the cartridge, ie, it exits the respective container more quickly than the component received in the other container. For this it is from the EP 0 584 428 B1 or the EP 0 664 153 B1 It is known to configure the inlet area of a mixer in such a way that the component, which tends to precipitate, is collected or deflected in the inlet area of the mixer before the components in the mixing space of the mixer are mixed with one another.
  • these measures are associated with an increase in the flow resistance within the mixer by multiple deflection of the components, which is perceived as a function of the viscosity of the components to be mixed as disadvantageous.
  • a mixer which can be attached by means of an adapter to a cartridge.
  • the adapter is provided for alignment relative to the cartridge with a pin-like projection which can engage in a corresponding opening on the cartridge housing.
  • the object of the present invention is to provide a cartridge system and a static mixer for this, in which cross contamination can not occur.
  • Another aspect of the present invention is to improve the flow behavior within the mixer and in a simple and reliable connection between the mixer and cartridge.
  • connection between the two containers (cartridge) and the mixer takes place via a threaded connection, wherein the connection region of the container has a ring surrounding the outlet with an internal thread, while the mixer is provided with an external thread, which is provided on the outside of the mixer housing ,
  • the length of the inlet stub, the outlet stub and the positioning element and the position of the positioning opening are matched to one another such that when the mixer is placed on the container, the positioning element engages in the positioning opening before the internal thread and the external thread intermesh.
  • the internal thread and the external thread engage one another before the inlet stub and the outlet stub can touch.
  • the positioning element which may be designed, for example, as a web or a tongue, protrudes in the direction of the cartridge beyond the inlet connection of the mixer.
  • the positioning member first engages a slot or the like opening on the cartridge before the threads of the female threaded collar of the cartridge and the external thread of the mixer can engage each other.
  • the inlet ports of the mixer can only touch the outlet of the cartridge when the threads of the cartridge and the mixer engage with each other, it is ensured that initially determined by the engagement of the positioning element in the corresponding positioning opening, the orientation of the mixer relative to the cartridge is before the other components can contact each other.
  • the positioning element can facilitate both the approach of the mixer to the cartridge as well as ensure a clear alignment and assignment of the mixer to the cartridge.
  • This has the advantage that a simple and intuitive merging of mixer and cartridge with a greater degree of freedom compared to known bayonet connections is possible.
  • the positioning element according to the invention differs from an example. From the EP 0 723 807 B1 known coding element, inter alia, that the mixer is guided in the cartridge and brought into the desired orientation, even before the actual connection of the mixer begins with the cartridge. Furthermore, the positioning element ensures from the beginning of the connection process to the correct orientation of the inlets and outlets to each other, without that they could come into contact with each other in a different orientation.
  • the threaded connection also ensures a particularly secure and firm locking of the mixer to the cartridge, whereby this lock is easy to actively release.
  • 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 cartridge system according to the invention is suitable both for components which are to be mixed with one another in a mixing ratio of 1: 1 and for mixing ratios which are different from 1: 1.
  • the inner diameters of the outlet channels of the cartridge are preferably chosen to be the same size for both components, whereby a volume of the outlet channels corresponding to the desired metering ratios can be adjusted by, for example, cylindrical cores in the interior of the outlet channels.
  • a cross-sectional taper can be provided in at least one of the two inlet ports of the mixer be.
  • This (internal) cross-sectional taper can be designed as an insert or as a conical channel, for example, so that for 1: 1 different mixing ratios, the right amount of components enters the mixer.
  • a static mixer according to the invention has for this purpose a mixing chamber which extends parallel to a longitudinal axis of the mixer and in which a mixing element is provided, and a coupling section which is suitable for connecting the mixer to the cartridge.
  • the coupling section has two inlets which are in each case in fluid communication with the mixing chamber via channels and a positioning element.
  • the coupling portion additionally has an external thread, so that the coupling portion can be formed by different components of the mixer, in particular by the housing and an insert. Further, the two inlets are formed as spaced-apart nozzle between which a partition wall is provided.
  • the positioning element protrudes in the direction of the longitudinal axis over the two inlets of the mixer.
  • the positioning member also projects beyond an intended partition wall and beyond the housing of the mixer, so that the positioning element must first be inserted into the corresponding opening of the cartridge before other components of the mixer come into contact with the cartridge.
  • a reservoir for mixing ratios other than 1: 1, is associated with a reservoir, which is disposed between the first inlet and the mixing space, and a reservoir Cross-sectional area which is greater than the cross-sectional area of the channel portion between the first inlet and the reservoir chamber.
  • the cross-sectional area of the inlet channel of the mixer is smaller than the cross-sectional area of the reservoir chamber, so that a tendency-prone component can be absorbed in the reservoir chamber, whereby this component delays or only a subsequent portion of this component passes into the actual mixing chamber.
  • the flow conditions within the static mixer have been found to be particularly favorable when the cross-sectional area of the channel portion located between the first inlet and the reservoir chamber is between about 80% and about 150% of the cross-sectional area of an opening or channel portion into the mixing space empties.
  • This extensive omission of cross-sectional tapers downstream of the reservoir chamber it is also possible to apply more viscous components with comparatively low discharge forces.
  • the channel section located between the first inlet and the reservoir chamber faces in the axial direction an opening or a (further) channel section which opens into the mixing chamber.
  • the elimination of deflections or their minimization in the channel located between the inlet and the mixing chamber minimizes the flow resistance.
  • the channel section located between the first inlet and the reservoir chamber may be arranged offset in the axial direction to an opening or a (further) channel section which opens into the mixing chamber.
  • the channel connecting the second inlet to the mixing space connects, as directly as possible passes into the mixing chamber, said channel can be passed to the reservoir chamber or passed therethrough.
  • the cross-sectional area of this second channel is smaller than that of the channel portion between the first inlet and the reservoir chamber.
  • the partition wall provided between the sockets of the inlets extends beyond these sockets in the direction of the cartridge. Even if components are dispensed with components prior to the start of the first mixing operation at the outlet ports of the cartridges, they can not pollute or contaminate the inlet ports of the mixer because of the partition wall. The same applies if an already used mixer removed and a new mixer is placed on the cartridge. Regardless of the positioning element also contributes to the partition that the mixer can not be placed in any position on the cartridge.
  • the mixer consists of exactly two components, namely a housing and an insert, which is axially secured and rotatably received relative to the housing in this.
  • the housing forms the, in particular, cylindrical mixing space and has an area widening in relation to the mixing space, which area forms the coupling section.
  • This widened region of the housing can be provided with the external thread, via which the mixer can be firmly connected to the cartridge. Due to the rotatability of the insert relative to the housing, a locking of the mixer to the cartridge can take place by screwing on, even if the insert of the mixer is previously aligned relative to the cartridge by means of the positioning element.
  • This also allows that while unscrewing the Mixer on the cartridge, the inlet ports of the mixer and the outlet of the cartridge interlock.
  • the inlet ports of the mixer are preferably inserted into the outlet of the cartridge.
  • the seal between the two components of the mixer can be axial and / or radial.
  • the axial seal with two sealing regions of the housing or of the insert lying successively in the longitudinal direction of the mixer has the advantage that the sealing effect when tightening the threaded connection to the cartridge is improved.
  • the use of the mixer can thus initially be freely rotatable in the housing and the sealing function only (fully) occurs after the assembly of the mixer to the cartridge.
  • the radial seal has the advantage that for this purpose e.g. a radial groove and a circumferential radial web can be used, which can be provided for freely rotatable connection of the two components of the mixer.
  • the unscrewing of the mixer therefore requires a relative rotational movement between the use of the mixer and the housing of the mixer, such a relative movement in the cured state of the components is difficult, when the mixer element, for example a mixing helix, is formed integrally with the insert.
  • the mixer has the mixing element, the two inlets and the positioning element as a one-piece component, wherein the mixer element can be separated via a predetermined breaking point of the two inlets and the positioning element.
  • cartridge system consists essentially of a mixer 1 and a double cartridge, which is formed by two containers 2a, 2b, which are integrally connected to each other.
  • a dispensing piston 3 a and 3 b is respectively provided for discharging the components received in the containers.
  • the dispensing piston can be moved via a device, not shown, within the container become.
  • the containers are each provided with an outlet nozzle 4a, 4b.
  • the outlet 4 a, 4 b are surrounded by a provided on the end-side end wall of the double cartridge ring 5, which is on his Inside a thread 6 carries. As well as out Fig. 1 it can be seen, are the outlet nozzle 4a, 4b (in Fig. 1 to the top) over the ring 5.
  • the outlet ports 4a, 4b are spaced apart, so that between them an in Fig. 1 recognizable gap or free space remains.
  • a flange or the like Be provided to secure the cartridge in a suitable dispensing device.
  • Fig. 3 As from the enlarged view of Fig. 3 it can be seen that extends into the Fig. 1 and 2 upper end wall partially beyond the two cylindrical containers 2a, 2b, so that the ring 5 is closed by a bottom, which is pierced by the two outlet 4 a, 4 b and also has a positioning opening 7, which in the in Fig. 3 shown embodiment, for example. Trapezoidal. Alternatively, the cross section may also be rectangular or triangular.
  • the mixer 1 is a so-called static mixer, ie it has no actively driven mixer element.
  • the mixer 1 is composed of two components, namely a mixer housing 8 and an insert 9, in the housing 8 in the axial Direction fixed, but is held rotatable. This can be done for example by means of a circumferential groove in the housing 8, in which a bead-like projection of the insert 9 engages, as in Fig. 5 is indicated.
  • the housing 8 of the mixer 1 consists of an elongated cylindrical tube, which can taper at its outlet end 10.
  • This elongated cylindrical portion of the housing 8 forms the actual mixing chamber in its interior.
  • the outlet end 10 opposite end of the housing 8 is widened with respect to this cylindrical portion and formed as a coupling portion, which serves for attachment of the mixer 1 to the cartridge (container 2a, 2b).
  • the coupling portion is provided with an external thread 11, which according to the embodiment of the Fig. 2 to 4 is formed by a plurality of threaded portions, while in the embodiment of the FIGS. 5 and 6 an overlapping thread is provided.
  • a profiled area may be provided adjacent to the thread 11, which facilitates the operation of the mixer 1, in particular the screwing of the mixer 1 in the ring of the cartridge.
  • the insert 9 has a plate 12, on which a mixer element 13, for example a mixing helix, as well as inlet ports 14a, 14b are formed.
  • the size of the inlet pipe 14a, 14b is sized so that they can be inserted into the outlet 4 a and 4 b of the cartridge.
  • the inlet ports 14a, 14b are spaced from each other, wherein in addition between the inlet port, a partition wall 15 is provided which protrudes from the plate 12 further than the inlet ports 14a, 14b.
  • the partition wall 15 can thus engage in the gap or clearance between the outlet stubs 4a, 4b and thus prevents, for example, components from the outlet stub 4a from reaching the inlet stub 14b or vice versa.
  • an elongated positioning member 16 which is an approximately triangular or e.g. Having trapezoidal cross-section and thus accurately fit into the positioning hole 7 of the cartridge can be inserted.
  • the positioning element 16 not only projects beyond the dividing wall 15 and the inlet ports 14a, 14b, but also protrudes beyond the housing 8 of the mixer 1 in the direction of the cartridge. This has the effect that, when the mixer 1 is placed on the cartridge, the positioning element 16 first enters the space delimiting the ring 5 without the remaining components of the mixer 1 touching the cartridge or its outlet nozzle.
  • the mixer 1 can be plugged onto the cartridge so far that the thread 11 of the mixer engages in the thread 6 of the cartridge.
  • the outlet ports 4a, 4b and the inlet ports 14a, 14b then come into engagement with each other.
  • the positioning element 16 occurs with its free end through the opening 7, so that the exact alignment of the mixer can also be controlled from the outside.
  • the free end of the positioning element 16 may be colored or marked in another way.
  • the positioning element 16 can be beveled or tapered at its free end, as shown.
  • elements may be provided in the bottom of the ring 6, ribs or the like, which guide the positioning element 16 in the direction of the positioning opening 7.
  • the positioning member 16 are formed on the mixer 1 and the corresponding opening 7 on the cartridge.
  • the advantages of the invention also occur when the Positioning element on the cartridge and the opening are formed on the mixer.
  • a further partition wall 17 may be provided which is aligned in the illustrated embodiment perpendicular to the first partition wall 15, so that the partition wall 17, the inflowing through the inlet ports 14a, 14b components each into two streams divides.
  • the mixer element 13 is connected in a preferred embodiment via a predetermined breaking point with the partition wall 17. This is particularly important in used mixers, in the mixing chamber of the 2-component material is cured and remain as usual as closure until the next application on the cartridge.
  • Fig. 5 runs from the inlet port 14a for the smaller volume component from the container 2a, a cylindrical channel 18 in the direction of the mixing chamber.
  • the partition 17 may partially extend into the channel 18 and / or the channel portion 19a.
  • the inlet nozzle 14b forms a first channel section 19a and the reservoir chamber 19b an enlarged channel section. Downstream of the reservoir chamber 19b can an opening 19c or another channel section may be provided which opens into the mixing space.
  • the size of the reservoir chamber 19b can be varied variably by the position of a wall 20, which extends perpendicular to the partition 17 in the illustrated embodiment. As far as the entering through the inlet port 14b component tends to advance, a leading portion of this component can first be collected in the reservoir chamber 19b before the further inflowing component passes together with the other component in the mixing chamber. How out Fig. 5 can be seen, the entering through the inlet port 14b component without further deflection from the reservoir chamber 19b get into the mixing chamber. This minimizes flow resistance.
  • the in the 4 to 6 illustrated static mixer 1 has some advantages over known static mixers. Thus, first by the threaded connection 6, 11 with the cartridge a secure and secure locking possible. In addition, the mixer by unscrewing the cartridge can be actively solved by this and lifted.
  • the two-part design of the mixer 1 also brings cost advantages.
  • the free rotation of the insert 9 in the mixer housing 8 allows a simple and cost-effective installation, in which, unlike in known mixers, it is not necessary to ensure that the components are aligned with one another.
  • the partition wall 15 and the outlet 5 a, 4 b protruding from the ring 5 also largely prevent soiling or cross contamination.
  • a mixer for the mixing ratio 1: 1 of the components can not be placed on a cartridge for a mixing ratio of, for example, 1:10 and vice versa.
  • a cross-sectional taper which takes into account the 1: 1 different mixing ratio of the components with the same outer diameter of the two inlet ports.
  • Fig. 7 the seal between the two components of the mixer is shown in detail.
  • a cone seal in the mixer between the inside of the housing 8 and the outside of the insert 9 is provided.
  • a latching connection is provided with a circumferential groove 21 in the housing and a circumferential ridge 22 in the insert.
  • the seal has corresponding conical sealing surfaces 23, 24, which in Fig. 7 above the groove or the web on the inside of the housing 8 and the outside of the insert 9 are formed.
  • Fig. 8 shows another sectional view of the cartridge system, wherein the case is shown that a user tries to put the mixer wrong (tilted) on the cartridge.
  • An important feature of the cartridge system according to the invention is the avoidance of unwanted carry-over of catalyst component and base component and could lead to the respective other paste component and their contamination. This could be due to accidental, unwanted insertion of the positioning tab first in one, then in the other channel or by touching the inlet and outlet channels of the cartridge and mixer in the unfavorable tilted placement in the wrong position, or analogous to the tilted replacement of a sealing plug.
  • the positioning tongue on the mixer (or on a closure plug) is designed so that it can not be inserted into the outlet channels.
  • the dividing wall is dimensioned such that it allows only small tilt angles between the outlet channels of the cartridge. If necessary, contours can be attached to the outlet channels of the cartridge, which further limit the play for the partition used with regard to unfavorable tilt angles.
  • a closure plug may have an additional sleeve-shaped collar (at the point where the thread is located at the mixer) and thus also avoids unfavorable tilt angles.
  • the invention also relates to a in the FIGS. 9 and 10 shown one-piece closure element, which instead of the mixer 1 on the double cartridge forming container 2a, 2b can be placed.
  • a plugs 21 are provided, which can be inserted sealingly into the outlet 4 a and 4 b.
  • the plugs are each connected via a web 22, which acts as a torsion spring, to a sleeve which can be inserted into the collar of the outlet end of the double cartridge.
  • An extended edge of the sleeve which is provided with a knurling, rests on the front side of the collar when the closure element is sealingly placed on the double cartridge.
  • the closure element can be secured in the collar (ring 5) by means of latching hooks 23, which engage behind the thread segments of the internal thread 6 and thus lock the closure element on the double cartridge.
  • latching hooks 23 engage behind the thread segments of the internal thread 6 and thus lock the closure element on the double cartridge.
  • the sleeve can be twisted slightly with the knurling, wherein the web 22 twists, since the plug 21 initially stuck in the outlet 4 a and 4 b.
  • This twisting of the web 22 acting as a torsion element makes it possible for the latching hooks to be disengaged from the thread segments of the internal thread 6, so that the closure element can be removed from the double cartridge.
  • the closure plug similar to the mixer, has a positioning tab 16 which may be configured to be visible to the user after passing through a corresponding opening in the cartridge. This has the advantage of visual visual inspection as to whether the closure plug and / or the positioning tab is properly inserted.
  • the torsion element of the sealing plug can, as in Fig. 9 shown to have a radial S-shape in order to secure a corresponding rotation even with small plug diameter.
  • the in Fig. 10 also shown sealing plug is equipped with a partition 17 which is similar to the mixer between the plug 21.
  • the partition wall 17 is provided with constrictions in the vicinity of the plugs 21, whereby the placement of the closure is facilitated without tilting.
  • a dispensing piston is shown with a Dehver gleich, which can be used in a cartridge system according to the invention for dispensing the components from the containers.
  • the piston is hereby provided with a vent, which allows air from the respective Tank leaks when it is filled with the component and the delivery piston is used. Since some substances tend to react with the remaining after filling the cartridge and the insertion of the piston in the cartridge residual air, it is anxious to let the residual air escape as completely as possible from the container. Any remaining in the container residual air between the piston and the substance located in the cartridge is also considered to be disadvantageous because the residual air forms a compressible pad that complicates the accuracy of the dosage when applying the substance from the cartridge.
  • the in the FIGS. 11 to 13 shown piston 100 has a base 101, which has a side wall provided with sealing means and an end wall, in which a vent opening 102 is provided.
  • This vent opening 102 extends through the entire base body, so that an air exchange between the side of the end wall (located in the conveying direction) and the back of the piston 100 is possible.
  • a closure element 103 is rotatably mounted in the ventilation opening 102, wherein a ventilation channel can be opened or closed by a relative rotation of the closure element 103 in the ventilation opening 102. In other words, it is possible to establish or prevent the flow connection between the downstream side of the piston 100 and the rear side of the piston with a rotation of the closure element 103.
  • a circumferential projection 104 is formed on the inner surface of the vent opening 102, which engages in a corresponding groove 105 in the closure element 103 in order to lock them together.
  • Both the projection 104 and the groove 105 are each provided with openings, which can be brought into coverage to release a vent channel, or be brought out of coverage can to close the vent channel.
  • the opening extends through the groove 105 perpendicular thereto, which may be formed slightly deeper than the opening, so that the projection 104 can securely close the openings.
  • the star-shaped vent slots 106 are tapered so that the total cross-sectional area is reduced to a fraction, e.g. to 1/100, the original cross-sectional area is reduced. In this way, trapped air can continue to flow unhindered into the open when closing the cartridge, but the access of impression material to the venting valve is made much more difficult.
  • FIGS. 14 to 16 An alternative embodiment of a Ausbringkolbens with Dehver gleich is in the FIGS. 14 to 16 is a shown, in turn, consists of a base 101 and a closure element 103. In addition, a sealing ring 107 is provided. In the embodiment of the FIGS. 14 to 16 is only a single vent opening 102 formed between the base 101 and the closure element 103, so that this variant can be used even in confined spaces.
  • a comparison of FIGS. 15 and 16 shows how the vent opening 102 opens depending on the rotational position of the closure element 103 in the base body 101 ( Fig. 15 ) or closes ( Fig. 16 ).
  • a cartridge for a mixing ratio of the components of 1: 1 is in Fig. 17 shown.
  • the two containers 2a, 2b have the same dimensions.

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)
  • Accessories For Mixers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP12744011.3A 2011-08-24 2012-08-10 Kartuschensystem und statischer mischer hierfür Active EP2747899B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12744011.3A EP2747899B1 (de) 2011-08-24 2012-08-10 Kartuschensystem und statischer mischer hierfür

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102011111046 2011-08-24
PCT/EP2011/068784 WO2012055926A1 (de) 2010-10-26 2011-10-26 Doppelkartusche, mischer hierfür und kombination aus doppelkartusche und mischer
DE102012003390.7A DE102012003390B4 (de) 2011-08-24 2012-02-23 Kartuschensystem und statischer Mischer hierfür
PCT/EP2012/065689 WO2013026717A1 (de) 2011-08-24 2012-08-10 Kartuschensystem und statischer mischer hierfür
EP12744011.3A EP2747899B1 (de) 2011-08-24 2012-08-10 Kartuschensystem und statischer mischer hierfür

Publications (2)

Publication Number Publication Date
EP2747899A1 EP2747899A1 (de) 2014-07-02
EP2747899B1 true EP2747899B1 (de) 2018-12-05

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EP12744011.3A Active EP2747899B1 (de) 2011-08-24 2012-08-10 Kartuschensystem und statischer mischer hierfür
EP12746331.3A Active EP2747900B1 (de) 2011-08-24 2012-08-10 Mischer und abgabeeinrichtung

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Country Status (7)

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US (3) US9700859B2 (es)
EP (2) EP2747899B1 (es)
BR (1) BR112014004109B1 (es)
DE (1) DE202012013429U1 (es)
ES (1) ES2714273T3 (es)
IN (1) IN2014CN02197A (es)
WO (2) WO2013026717A1 (es)

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WO2024133489A1 (de) 2022-12-23 2024-06-27 Dosaplast Gmbh Kartusche mit verriegelungselement

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CA3070150C (en) * 2017-07-28 2022-07-19 3lmed GmbH Mixer
DE102017117557A1 (de) 2017-08-02 2019-02-07 3lmed GmbH Applikationssystem
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
DE102019101640A1 (de) 2019-01-23 2020-07-23 3lmed GmbH Kartusche
EP3733271B1 (de) * 2019-04-30 2023-04-05 Ritter GmbH Mischer mit beruhigungsreservoirs
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

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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
EP2747899A1 (de) 2014-07-02
BR112014004109B1 (pt) 2020-11-10
BR112014004109A2 (pt) 2017-03-14
US9782737B2 (en) 2017-10-10
IN2014CN02197A (es) 2015-05-29
WO2013026721A1 (de) 2013-02-28
EP2747900A1 (de) 2014-07-02
WO2013026717A1 (de) 2013-02-28
US20140290773A1 (en) 2014-10-02
US20170157581A1 (en) 2017-06-08
US9550159B2 (en) 2017-01-24
EP2747900B1 (de) 2015-07-29
US9700859B2 (en) 2017-07-11

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