EP1274501B2 - Mischer - Google Patents

Mischer Download PDF

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Publication number
EP1274501B2
EP1274501B2 EP01923721A EP01923721A EP1274501B2 EP 1274501 B2 EP1274501 B2 EP 1274501B2 EP 01923721 A EP01923721 A EP 01923721A EP 01923721 A EP01923721 A EP 01923721A EP 1274501 B2 EP1274501 B2 EP 1274501B2
Authority
EP
European Patent Office
Prior art keywords
range
mixer
dynamic mixer
mixing
materials
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.)
Expired - Lifetime
Application number
EP01923721A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1274501A1 (de
EP1274501B1 (de
Inventor
Ingo Wagner
Gerd Brandhorst
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.)
3M Deutschland GmbH
Original Assignee
3M Espe AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7639646&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1274501(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3M Espe AG filed Critical 3M Espe AG
Publication of EP1274501A1 publication Critical patent/EP1274501A1/de
Publication of EP1274501B1 publication Critical patent/EP1274501B1/de
Application granted granted Critical
Publication of EP1274501B2 publication Critical patent/EP1274501B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0722—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis perpendicular with respect to the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application

Definitions

  • the invention relates to a device in the form of a dynamic mixer, and / or in the form of a cartridge front, which is used in the mixing of high-viscosity pastes or a combination of both devices.
  • mixers are essentially suitable only for mixing relatively small amounts of easily miscible masses with not too high viscosity.
  • the mixer is placed on a double cartridge in which there are two pistons.
  • the power transmission to the pistons is done manually.
  • the quality of the mixing result is ultimately dependent on the length of the mixing cannula and the number of spirals contained therein. Since the volume of the mixing cannula is not negligible in relation to the volume of the cartridge, there is an undesirable loss of material to be mixed or mixed when changing the mixing cannula.
  • a method and a device for mixing at least two pasty masses is also in the DE 42 02 591 A1 described.
  • the device comprises two containers whose Austassstutzen are arranged for common coupling to a mixer parallel to each other.
  • the EP 0 993 863 A1 discloses a device in the form of a mixer with circular inlet openings, which has a bypass channel.
  • DE 42 02 591 A1 discloses a device with two containers, each with an outlet, which may optionally differ from the circular shape. The mass flow exiting the device should then be directed into a static mixer. The device also has a thread for connection to the static mixer.
  • EP 0 319 135 A1 There is described an apparatus for dispensing multicomponent masses comprising a multi-chamber cartridge and a static mixer.
  • the static mixer has no inlet openings which correspond to the outlet openings of the cartridge.
  • the static mixer is threadedly connected to the cartridge.
  • the US 5,498,078 relates to a static mixer that can be connected to associated cartridges.
  • the WO-98/43727 A1 describes a dynamic mixer with circular inlet openings.
  • a substantially ideal mixer allows for a high material throughput while maintaining the mixing quality, on the other hand, it has a small size in order to avoid loss of material during mixing and to keep the production costs low.
  • a typical dynamic mixer has two round inlet openings for the masses to be mixed, and an opening for receiving a drive shaft which drives the mixing vanes.
  • the masses to be mixed are usually applied via electrically driven pistons from corresponding cartridges.
  • Desired is a high throughput with consistent mixing quality.
  • the amount of miscible mass per unit time is limited on the one hand by the size of the inlet openings, on the other hand by the transferable force to the piston.
  • the force on the punches could be increased.
  • this measure is limited by the material properties of the device in conjunction with the size of the inlet openings.
  • inlet openings differently from the circular shape, it is possible to provide larger inlet openings for the materials to be mixed with the same size of the mixer or the cartridge front.
  • the device in the form of a mixer or a cartridge front on the one hand sufficiently flexible and flexible to act as their own seal, on the other hand, sufficiently stable to process the forces occurring during application of the mixing compound or during mixing ,
  • the material is such that it has an modulus of elasticity and an elongation at break, as described above, in combination.
  • opening in the sense of the present invention means both inlet openings and outlet openings. This depends on the direction in which the substances to be mixed flow or are pressed and on whether or not openings in the mixer or the cartridge front are viewed.
  • a cartridge front has at least one inlet opening, which corresponds to the at least one outlet opening.
  • a mixer usually has two inlet openings and only one outlet opening.
  • kidney or sickle shape in particular openings with rounded edges and corners.
  • Such a design enables an optimized arrangement of the inlet openings around the opening for the drive shaft, which is usually located in the center of a dynamic mixer. Furthermore, this design allows the utilization of almost the entire surface of a dynamic mixer available for the inlet openings.
  • the device according to the invention preferably has at least two, but optionally also three or four openings.
  • the deviated from the circular opening usually has an area that is greater than would be possible in a circular design.
  • openings are usually arranged symmetrically about the opening for the drive shaft.
  • the drive of the mixing element can also be done off-center, as for example in the WO 01 / 24919A1 is described.
  • the inventive device in the form of a dynamic mixer usually comprises at least three components, in particular a base plate (1), in which the non-circular inlet openings (2, 3) and the opening (4) for the drive shaft (not shown) are embedded and a rotatably mounted in the base plate (1) rotor (5) to which the mixing blades (6) are mounted and a forming groove (7) for receiving the drive shaft, and the housing (8) in which the rotor (5) runs.
  • the device additionally has at least one seal in the region of the inlet openings (2, 3).
  • the shape of the groove (7) for the drive shaft is arbitrary, with the proviso that a sufficient force transmission from the drive shaft to the mixing vanes (6) can take place for mixing.
  • the shaping groove (7) for the drive shaft is triangular, quadrangular, square, pentagonal, hexagonal, heptagonal, octagonal or formed as a hollow pinion.
  • the length and / or the diameter of the mixer are usually in the range of 5 to 1000 mm, preferably in the range of 10 to 100 mm.
  • the area of the inlet openings is usually in the range of 0.1 to 5000 mm 2 , preferably in the range of 1 to 400 mm 2 .
  • this adjustment is achieved by adapting the geometries of the openings of the cartridge front (10, 11) to the inlet openings (2, 3) of the mixer. This can be achieved by plug-in, snap or possibly also screw.
  • the vote can also be made by adapting the materials.
  • the mixer has an E-modulus in the range of 800 to 1400 N / mm 2 and / or an elongation at break in the range of 200 to 800% and the material of the cartridge front an E-modulus in the range of 2000 to 3000 N / mm 2 and / or have an elongation at break in the range of 50 to 200%.
  • a comparably good sealing effect can be achieved if the material of the mixer has an modulus of elasticity in the range of 2000 to 3000 N / mm 2 and / or an elongation at break in the range of 50 to 200% and the material of the cartridge front has an E-modulus in the range from 800 to 1400 N / mm 2 and / or have an elongation at break in the range of 200 to 800%.
  • Suitable materials for the device in particular in the form of a
  • Mixers and / or a cartridge front with two non-circular inlet or outlet ports include PE, OPP, PP, PTFE, PC and / or POM.
  • the materials are used in fiber reinforced and / or filled form.
  • Suitable fibers and fillers include glass fibers / particles and carbon fibers / particles.
  • Suitable mixers and / or cartridge fronts can be produced, for example, by injection molding, optionally in a 2-K injection molding process.
  • the mixers and cartridge fronts according to the invention can be used in all fields of technology, in particular for mixing highly viscous, pasty and / or thick masses.
  • Examples include: adhesive, joint sealants, paints.
  • the mixers and cartridge fronts according to the invention can be used in the dental field.
  • the devices according to the invention are particularly suitable for mixing highly viscous impression materials which are pressed out, for example, from tubular bags which are inserted into suitable cartridges with electrically driven punches. Also conceivable and possible is the application of the materials from suitable cartridges, which are filled directly with the material without a tubular bag is used.
  • highly viscous masses includes all masses with a viscosity determined by consistency testing according to DIN 4823 class 0 to 3, which are measured with a diameter of less than 80 mm.
  • silicones examples include silicones, polyethers, polyether silicones, epoxides and polyurethanes.
  • Figure 1 shows the device in the form of a dynamic mixer in longitudinal section.
  • Figure 2 shows the device in the form of a dynamic mixer in the plan.
  • Figure 3 shows the device comprising a mixer and a cartridge front.
  • FIG. 4 shows the embodiment in the form of a cartridge front in the top view.
  • FIGS. 5 and 6 show further embodiments of a dynamic mixer in the top view.
  • Figure 1 shows the device according to the invention in the form of a dynamic mixer with the three components, base plate (1) in which the non-circular inlet openings (2,3) and the opening (4) for the drive shaft are embedded, one in the base plate (1 ) rotatably mounted rotor (5) to which the mixing vanes (6) are mounted, wherein the opening has a shaping groove (7) for receiving the drive shaft, and the housing (9) in which the rotor (5) runs.
  • FIG. 2 shows the device according to the invention in the form of a dynamic mixer with two kidney-shaped inlet openings of different sizes (2, 3) and a round opening (4) with a hexagonal shaped groove (7) for the drive shaft. Also indicated is the mixing blade (6) to be seen here in opening (2).
  • FIG. 3 shows the device according to the invention, comprising the mixer according to FIG. 1 in conjunction with two cartridge fronts (9, 9 ').
  • the two differently sized inlet openings (2, 3) of the dynamic mixer correspond to the two outlet openings of the cartridge front (10, 11).
  • FIG. 4 shows a cartridge front in a top view with a kidney-shaped opening (10), which corresponds, for example, to the opening (3) in FIG.
  • FIGS. 5 and 6 show further design options for the non-circular openings of the device according to the invention in the form of a dynamic mixer.
  • the mixer in Figure 5 has two openings in an oval shape
  • the mixer in Figure 6 two openings in a semicircular shape with rounded corners.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Confectionery (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Vehicle Body Suspensions (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
EP01923721A 2000-04-20 2001-04-11 Mischer Expired - Lifetime EP1274501B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019893A DE10019893C2 (de) 2000-04-20 2000-04-20 Vorrichtung in Form eines dynamischen Mischers oder einer Kartuschenfront und deren Verwendung
DE10019893 2000-04-20
PCT/EP2001/004141 WO2001080986A1 (de) 2000-04-20 2001-04-11 Mischer

Publications (3)

Publication Number Publication Date
EP1274501A1 EP1274501A1 (de) 2003-01-15
EP1274501B1 EP1274501B1 (de) 2004-06-23
EP1274501B2 true EP1274501B2 (de) 2008-01-23

Family

ID=7639646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01923721A Expired - Lifetime EP1274501B2 (de) 2000-04-20 2001-04-11 Mischer

Country Status (7)

Country Link
US (1) US20030137898A1 (ja)
EP (1) EP1274501B2 (ja)
JP (1) JP2003531000A (ja)
AT (1) ATE269754T1 (ja)
AU (1) AU2001250422A1 (ja)
DE (2) DE10019893C2 (ja)
WO (1) WO2001080986A1 (ja)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072323B1 (de) * 1999-07-29 2003-09-10 Wilhelm A. Keller Kartuschen-Austraggerät mit Antrieb für dynamischen Mischer
US6443612B1 (en) * 1999-12-02 2002-09-03 Wilhelm A. Keller Dynamic mixer
DE10164385C1 (de) * 2001-12-28 2003-03-06 Kettenbach Gmbh & Co Kg Vorrichtung zum Vermischen zweier pastöser Massen, insbesondere zum Vermischen einer Dental-Abformmasse mit einer Katalysatormasse
DE602004008230T2 (de) * 2003-03-06 2007-12-20 Dentsply International Inc. Abgabe- und mischspitze
EP1510248B1 (en) * 2003-08-14 2005-06-08 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
US20080264809A1 (en) * 2004-02-27 2008-10-30 Heraeus Kulzer Gmbh Method for the Production of Dental Moulding Materials and Device Therefor
DE102004010156A1 (de) * 2004-02-27 2005-11-17 Heraeus Kulzer Gmbh Dynamischer Mischer mit geringem Durchflusswiderstand
JP4485227B2 (ja) * 2004-03-12 2010-06-16 株式会社ジーシー 歯科用印象材練和装置
EP1588779A1 (en) * 2004-04-19 2005-10-26 3M Espe AG Dynamic mixer
EP1640060A1 (en) 2004-09-22 2006-03-29 3M Espe Ag Mixer for multi-component pastes, kit, and method of mixing paste components
US8322909B2 (en) * 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
US8197545B2 (en) * 2005-10-27 2012-06-12 Depuy Spine, Inc. Nucleus augmentation delivery device and technique
EP1836992A1 (en) 2006-03-10 2007-09-26 3M Innovative Properties Company Mixing device and drive for the mixing device
RU2523995C2 (ru) 2006-12-15 2014-07-27 3М Инновейтив Пропертиз Компани Смешивание и подача через диспенсер многокомпонетных отверждаемых материалов
AU2008297444B2 (en) * 2007-09-10 2012-11-22 Sulzer Mixpac Ag Dynamic mixer
DE102008008964A1 (de) * 2008-02-13 2009-08-27 Dibau Gmbh & Co. Kg Anflanschbare dynamische Mischvorrichtung für einen in Folienbeutel verpackten 2-Komponenten Kleb- und Dichtstoff mit einem Volumen-Mischungsverhältnis zwischen 7,6:1 und 8,3:1
US7731413B2 (en) * 2008-02-20 2010-06-08 Zhermack S.P.A. Mixer for multi-components substance for dental casting
EP2399666B1 (en) * 2010-06-22 2013-02-20 3M Innovative Properties Company Mixer for preparing a dental material, and system comprising the same
IN2012DE01330A (ja) * 2011-07-22 2015-09-25 Sulzer Mixpac Ag
JP2013085974A (ja) * 2011-10-13 2013-05-13 Kurimoto Ltd 処理装置
JP6345923B2 (ja) * 2013-08-30 2018-06-20 スリーエム イノベイティブ プロパティズ カンパニー ペースト混合器及びディスペンサ
KR101406068B1 (ko) * 2013-09-05 2014-06-11 (주)디엑스엠 디스펜서용 믹싱팁
US10562064B2 (en) * 2014-09-23 2020-02-18 Sika Technology Ag Head plate device, storage container device, cartridge arrangement, dispensing apparatus, and their usage
JP1534032S (ja) * 2014-11-28 2015-09-28
JP1534033S (ja) * 2014-11-28 2015-09-28

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US3582048A (en) * 1969-06-12 1971-06-01 Union Oil Co Inline fluid mixing device
US4093188A (en) * 1977-01-21 1978-06-06 Horner Terry A Static mixer and method of mixing fluids
DE2949369A1 (de) * 1979-12-07 1981-06-11 Hilti AG, 9494 Schaan Geraet zum abgeben von mehrkomponentenmassen
EP0232733B1 (de) * 1986-02-10 1989-10-11 Wilhelm A. Keller Zweikomponenten-Austrageinrichtung
US5033650A (en) * 1987-03-09 1991-07-23 Laurence Colin Multiple barrel dispensing device
JP2686078B2 (ja) * 1987-07-16 1997-12-08 久夫 小嶋 ミキシングエレメント
US4771919A (en) * 1987-10-28 1988-09-20 Illinois Tool Works Inc. Dispensing device for multiple components
DE3932359A1 (de) * 1989-09-28 1991-04-11 Basf Ag Schlagzaeh modifizierte thermoplastische polyurethan-polyester-formmassen, verfahren zu ihrer herstellung und ihre verwendung
DE9017323U1 (ja) * 1990-12-21 1992-04-16 Thera Patent Gmbh & Co Kg Gesellschaft Fuer Industrielle Schutzrechte, 8031 Seefeld, De
DE4202591C2 (de) * 1992-01-30 1994-09-01 Bostik Gmbh Vorrichtung zum Vormischen von wenigstens zwei pastösen Massen
DE59205705D1 (de) * 1992-08-24 1996-04-18 Wilhelm A Keller Mischer für Doppelaustragskartuschen
DE4309798C2 (de) * 1993-03-26 1996-12-05 Merck Patent Gmbh Endstück für ein chromatographisches Kartuschenrohr
DE59407962D1 (de) * 1994-01-19 1999-04-22 Wilhelm A Keller Mischer
US5819988A (en) * 1997-04-01 1998-10-13 Sawhney; Ravi K. Double-barreled syringe with detachable locking mixing tip
DE29705741U1 (de) * 1997-04-01 1998-08-06 Muehlbauer Ernst Kg Dynamischer Mischer für zahnärztliche Abdruckmassen
ES2190263T3 (es) * 1998-10-14 2003-07-16 Kettenbach Gmbh & Co Kg Dispositivo para mezclar dos masas pastosas, en especial para mezclar una masa de moldeo dental con una masa de catalizador.
DE29818499U1 (de) * 1998-10-16 2000-03-02 Espe Dental Ag Mischer für Mehrkomponentenpasten
DE29819661U1 (de) * 1998-11-04 1999-02-25 Kress Elektrik Gmbh & Co Vorrichtung zum Auspressen und dosierten Abgeben von fließfähigen Mehrkomponenten
EP1099470B1 (de) * 1999-11-12 2004-08-11 Kettenbach GmbH & Co. KG Vorrichtung zum Vermischen zweier pastöser Massen, insbesondere zum Vermischen einer Dental-Abformmasse mit einer Katalysatormasse
US6443612B1 (en) * 1999-12-02 2002-09-03 Wilhelm A. Keller Dynamic mixer

Also Published As

Publication number Publication date
EP1274501A1 (de) 2003-01-15
JP2003531000A (ja) 2003-10-21
DE10019893A1 (de) 2001-10-31
DE50102677D1 (en) 2004-07-29
US20030137898A1 (en) 2003-07-24
ATE269754T1 (de) 2004-07-15
WO2001080986A1 (de) 2001-11-01
EP1274501B1 (de) 2004-06-23
AU2001250422A1 (en) 2001-11-07
DE10019893C2 (de) 2003-05-28

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