WO2008025181A1 - Mikrodosiereinrichtung - Google Patents
Mikrodosiereinrichtung Download PDFInfo
- Publication number
- WO2008025181A1 WO2008025181A1 PCT/CH2007/000420 CH2007000420W WO2008025181A1 WO 2008025181 A1 WO2008025181 A1 WO 2008025181A1 CH 2007000420 W CH2007000420 W CH 2007000420W WO 2008025181 A1 WO2008025181 A1 WO 2008025181A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weighing
- reservoir
- microdosing
- container
- depot
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
- G01G11/08—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers having means for controlling the rate of feed or discharge
- G01G11/086—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers having means for controlling the rate of feed or discharge of the loss-in-weight feeding type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
- G01G13/02—Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism
- G01G13/022—Material feeding devices
- G01G13/024—Material feeding devices by gravity
Definitions
- the invention relates to a microdosing for dosing and weighing of free-flowing and not free-flowing bulk materials, such as flours, powders, additives or fine-grained granules.
- EP-B-697357 describes a microdosing apparatus in which a dosing scale consists of a weighing container suspended on weighing elements with discharge aids and trays with openings, wherein a product transfer opening is arranged in a bottom directly above the feed area of a dosing screw.
- a dosing scale consists of a weighing container suspended on weighing elements with discharge aids and trays with openings, wherein a product transfer opening is arranged in a bottom directly above the feed area of a dosing screw.
- a hollow cone with a through hole is used instead of a stirrer.
- the intermediate floor should be able to carry a large product column, weighing is accurate.
- Dosing devices are also known with a vertically arranged conveying element, for example by means of a vertical worm-mounted screw.
- the aim is to achieve a 100% degree of screw flow and a large adjustment range, in conjunction with a compact design.
- the arrangement of a stirrer is additionally proposed in GB-A-1601568.
- the metering unit should be decoupled from the weighing container. This makes the weighing container lighter and improves the relationship between product to be weighed and tare.
- the invention has for its object to develop a microdosing for dosing and weighing of flowable bulk materials, such as flours, powders or fine granules, which allows both an accurate weighing small amounts of product (batches) and a highly accurate regulation of continuous product streams.
- Characteristic is a decoupling of depot and balance, which in contrast to the prior art, a significantly simplified design is achieved with higher weighing accuracy. In particular, pressure fluctuations in the weighing container are avoided.
- a simple, modular design is available, and besides volumetric weighing, it can also be extended to gravimetric weighing.
- the Mikrodosier is sanitation friendly designed, a Leerfahren with very small residual amounts is possible. Bridge formations and product differences in the depot are avoided. The gross weight of the microdosing device is low. Due to the decoupling, the depot can be refilled automatically.
- the invention will be described below in an embodiment with reference to a drawing.
- the drawing shows the microdosing in a sectional view.
- the depot 2 which is arranged above the weighing container 3 as a storage container, has a bottom trimmer 5 with a drive device 6.
- the product located in the depot 2 is loosened and discharged through an opening 7 in the bottom of the depot into the weighing container 3.
- a spatially formed on the wall of the depot 2 and the opening 7 arranged and spatially trained nose 8 deflects the product to be discharged, so that the product pressure is relieved and an uncontrolled refilling of the weighing container 3 is prevented.
- the constancy of refilling is improved even with bulk density scattering.
- the Bodenausmaschiner 5 may further be provided with a scraper, not shown.
- the depot is separated by weighing from the weighing container 3 arranged under this, wherein only in the region of the opening 7 to the weighing container 3, a flexible sleeve 9 is arranged to meet the sanitation requirements and to minimize pressure fluctuations.
- the sleeve 9 extends at least gap-free to the bottom of the depot 2 and is secured by means of holder against damage.
- the weighing container 3 is arranged on only one overload-protected measuring cell 11 and has a stirrer 10 with drive unit 12.
- the weighing container 3 can also be designed as a negative cone to avoid bridging.
- the discharge screw 4 is designed as a double spiral screw without soul and is also driven by the drive unit 12.
- a belt overdrive allows a large power range.
- the depot 2 is much larger than the weighing container 3 and allows the weighing of multiple batches without refilling.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07785110A EP2062013A1 (de) | 2006-09-01 | 2007-08-23 | Mikrodosiereinrichtung |
US12/443,772 US8367946B2 (en) | 2006-09-01 | 2007-08-23 | Micrometering device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006041298A DE102006041298A1 (de) | 2006-09-01 | 2006-09-01 | Mikrodosiereinrichtung |
DE102006041298.2 | 2006-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008025181A1 true WO2008025181A1 (de) | 2008-03-06 |
Family
ID=38596823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2007/000420 WO2008025181A1 (de) | 2006-09-01 | 2007-08-23 | Mikrodosiereinrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US8367946B2 (de) |
EP (1) | EP2062013A1 (de) |
KR (1) | KR20090063226A (de) |
DE (1) | DE102006041298A1 (de) |
WO (1) | WO2008025181A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4895412B1 (ja) * | 2011-07-05 | 2012-03-14 | 株式会社プラスワンテクノ | 多品種秤量装置および多品種秤量装置システム構成 |
EP3383828A1 (de) | 2015-12-03 | 2018-10-10 | Power Minerals Limited | Verfahren zur herstellung von granulaten und agglomeraten aus pulvern |
US9829295B2 (en) * | 2016-01-29 | 2017-11-28 | Jimmie Christopher Todd | Ammunition reloading system |
CA3031590C (en) * | 2016-07-27 | 2021-11-09 | Buhler Ag | Dosing and weighing device and method for determining the weight of a product in a dosing and weighing device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9014491U1 (de) * | 1990-10-19 | 1991-04-18 | Verwaltungs Lohse GmbH & Co KG, 7920 Heidenheim | Stofflöser, insbesondere zum Auflösen von Biomasse |
US5627346A (en) * | 1990-02-02 | 1997-05-06 | Buhler Ag | Plant for continuous mixing and homogenization |
DE19820709A1 (de) * | 1997-05-11 | 1998-11-19 | Bolder Automation Gmbh | Verfahren und Vorrichtung zur meßtechnischen Ermittlung des Materialdurchsatzes einer Dosiereinheit, Extrudereinheit o. dgl. |
WO2004042334A1 (fr) * | 2002-10-31 | 2004-05-21 | Mettler-Toledo Flexilab Sas | Appareil pour le dosage de precision de poudre |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3319828A (en) * | 1964-10-28 | 1967-05-16 | Colgate Palmolive Co | Weight rate control |
GB1601568A (en) | 1978-05-25 | 1981-10-28 | Ward J A | Material feed device and plastics recovery installation including such device |
DE3201939C2 (de) * | 1981-01-28 | 1985-11-14 | Hiroyuki Toyonaka Osaka Fukuya | Vorrichtung zum kontinuierlichen Wiegen von kontinuierlich zugeführtem pulver- oder teilchenförmigem Gut |
JPS6118642A (ja) | 1984-07-04 | 1986-01-27 | Kubota Ltd | 粉粒体供給装置 |
DE3617200A1 (de) | 1986-05-22 | 1987-11-26 | Inoex Gmbh | Waage fuer die massendurchsatzerfassung im einlauf eines extruders |
DE4312281A1 (de) * | 1993-04-15 | 1994-10-20 | Eirich Maschf Gustav | Verfahren und Vorrichtung zur gravimetrischen Dosierung und Vermischung mindestens zweier Komponenten |
US5423455A (en) * | 1993-06-25 | 1995-06-13 | Acrison, Inc. | Materials feeding system with level sensing probe and method for automatic bulk density determination |
DE4332030A1 (de) * | 1993-09-21 | 1995-03-23 | Pfister Gmbh | Verfahren und Vorrichtung zum gravimetrischen Dosieren von Schüttgütern |
US5405049A (en) * | 1993-10-27 | 1995-04-11 | Acrison, Inc. | Isolation pad for a feeding system and a method for feeding material from the system |
CH687869A5 (de) | 1994-08-15 | 1997-03-14 | Buehler Ag Geb | Mikrodosiergeraet. |
US6196417B1 (en) * | 1995-04-04 | 2001-03-06 | Paul S. Johnson | Method and apparatus for improved regulation of flow of particulate matter |
DE10153425A1 (de) * | 2001-11-03 | 2003-05-15 | Pfister Gmbh | Verfahren und Vorrichtung zum gravimetrischen Dosieren von Schüttgut |
US6722294B2 (en) * | 2002-08-06 | 2004-04-20 | Vitro Global, S.A. | Method and apparatus for feeding a pulverized material |
-
2006
- 2006-09-01 DE DE102006041298A patent/DE102006041298A1/de not_active Withdrawn
-
2007
- 2007-08-23 WO PCT/CH2007/000420 patent/WO2008025181A1/de active Application Filing
- 2007-08-23 US US12/443,772 patent/US8367946B2/en not_active Expired - Fee Related
- 2007-08-23 EP EP07785110A patent/EP2062013A1/de not_active Withdrawn
- 2007-08-23 KR KR1020097006541A patent/KR20090063226A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627346A (en) * | 1990-02-02 | 1997-05-06 | Buhler Ag | Plant for continuous mixing and homogenization |
DE9014491U1 (de) * | 1990-10-19 | 1991-04-18 | Verwaltungs Lohse GmbH & Co KG, 7920 Heidenheim | Stofflöser, insbesondere zum Auflösen von Biomasse |
DE19820709A1 (de) * | 1997-05-11 | 1998-11-19 | Bolder Automation Gmbh | Verfahren und Vorrichtung zur meßtechnischen Ermittlung des Materialdurchsatzes einer Dosiereinheit, Extrudereinheit o. dgl. |
WO2004042334A1 (fr) * | 2002-10-31 | 2004-05-21 | Mettler-Toledo Flexilab Sas | Appareil pour le dosage de precision de poudre |
Also Published As
Publication number | Publication date |
---|---|
US20100089667A1 (en) | 2010-04-15 |
KR20090063226A (ko) | 2009-06-17 |
DE102006041298A1 (de) | 2008-03-20 |
EP2062013A1 (de) | 2009-05-27 |
US8367946B2 (en) | 2013-02-05 |
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