EP0979682A1 - Doseur de poudres avec disque de dosage - Google Patents

Doseur de poudres avec disque de dosage Download PDF

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Publication number
EP0979682A1
EP0979682A1 EP99115100A EP99115100A EP0979682A1 EP 0979682 A1 EP0979682 A1 EP 0979682A1 EP 99115100 A EP99115100 A EP 99115100A EP 99115100 A EP99115100 A EP 99115100A EP 0979682 A1 EP0979682 A1 EP 0979682A1
Authority
EP
European Patent Office
Prior art keywords
powder
pump
metering
injector
dosing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99115100A
Other languages
German (de)
English (en)
Inventor
Egon Gathmann
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0979682A1 publication Critical patent/EP0979682A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means

Definitions

  • the invention relates to a powder metering device for providing powder, especially for powder coating.
  • EP 0 412 289 B1 describes an electrostatic powder coating device known in which an injector pump coating powder by means of a Conveying gas conveys and an additional dosing gas line from a compressed air source is connected to the injector pump. With the dosing gas line, via which Dosing gas is fed to the injector pump, an adjustment of the conveying air quantity should and the dosing air volume to optimal values. With the Introducing dosing gas into the injector pump will make it controllable Injector pump with regard to the supply of a desired amount In particular, powder required for coating improves controllability and however, the meterability of the powder quantity does not reach the accuracy of conventional rotary driven metering pumps in disc design.
  • the invention is therefore based on the object of having a powder metering device to create a known metering pump, which is a particular for Coating required amount of powder precisely dosed, low wear and works reliably and in which a deposit of powder, especially in their Sealing gaps is essentially prevented.
  • the powder metering device has a metering pump with an intermediate Side plates arranged metering disc, which is connected to a shaft, on which a drive is arranged, which the metering disc between the Side plates rotates.
  • a powder-air mixture via an inlet fed to the metering pump and by rotating the metering disc an outlet is transported, from which the in the openings or chambers powder or powder-air mixture located in the metering disc is discharged.
  • the powder metering device has an injector pump.
  • the outlet the dosing pump is connected to the injector pump via a suction pipe. By one generated in the injector pump, the dosing pump via a suction connection Incoming vacuum flow is the powder or powder-air mixture sucked the outlet or the outlet chamber of the metering pump and one Consumers supplied accordingly.
  • the delivery rate of which is relatively low accuracy is adjustable and the reproducibility of the delivery rate of numerous Factors such as grain size, bulk density, formation of the fluid bed in the Powder feeder, etc., it is possible to have a simple, to achieve reproducible adjustment of the delivery rate.
  • the essential Influencing factors on the flow rate are the speed of the metering pump, the Chamber size and bulk density.
  • the injector pump has first actuator for controlling the vacuum flow.
  • the vacuum flow is controlled so that this one Accumulation of powder in the outlet and / or between the metering disc and the Prevents side plates.
  • the size of the vacuum flow i.e. the in the The flow velocity prevailing in the injector intake manifold depends, among other things on the geometric dimensions of the injector pump and the suction air flow, by means of which the vacuum flow is generated in the suction pipe of the injector becomes.
  • a control device is also preferably provided, by means of which the injector pump is pressure controlled depending on the speed of the Metering pump is controllable. This has the advantage that the metering pump and Injector pump optimal in terms of flow rate, accuracy, low wear and reliable operation can be optimally coordinated.
  • this is the case with the powder metering device first actuator arranged upstream of the suction port of the metering pump.
  • a controlled flow is made Airflow introduced into the suction port from a compressed air source
  • a second actuator is provided by the injector pump, by means of which a additional air flow is controllable.
  • the additional air flow becomes the suction air flow of the injector pump and thus the vacuum flow influenced in a targeted manner with regard to the flow velocity.
  • a third actuator for controlling the injector pump supplied air flow provided.
  • the first, the second and the third actuator can be controlled by means of the control device.
  • the powder-air mixture is preferably placed in a fluid bed in a container a powder metering device connected to the inlet of the metering pump generated.
  • the fluid bed is preferably also along an inlet channel which connects the container to the inlet of the metering pump. This ensures that the metering pump is filled evenly.
  • the Feeder consists of a container and an inlet channel.
  • the container and the inlet channel have a fluid bed, in which an air flow into the Powder located in the container flows and thus the powder into a powder-air mixture transferred. This powder-air mixture is required for the powder can flow evenly.
  • At least the side plates of the Dosing pump of cavities through which coolant flows ensures that the powder is not overheated inside the pump.
  • a Metering pump 1 which has a metering disc arranged between side plates 2, 3 4, which by means of a pump shaft 18 from a drive, not shown is driven in rotation, has an inlet 6 and an outlet 7.
  • metering bores or metering chambers are distributed circumferentially arranged.
  • the inlet 6 and the outlet 7 are radial from the axis of rotation of the Pump shaft 18 spaced from the metering chambers.
  • the inlet 6 is with a Powder feed device 13 connected.
  • the powder feed device 13 consists in essentially from an inlet channel 19, which at the inlet 6 of the metering pump 1 is connected, a container 20 and a fluid bed arranged therein or Fluidized bed 12.
  • the container 20 contains powder into which air is blown is so that the fluid bed 12 is generated in the container 20. In the same way air is blown into the inlet channel 19, so that there is also a fluid bed is available. This creates a powder-air mixture that comes out of the container 20 via the inlet channel 19 and the inlet 6 to the metering chambers 21 of the metering disc 4 is supplied. By rotating the metering disc 4, the Powder or powder-air mixture at least partially filled metering chambers 21 conveyed to the outlet side of the metering pump 1.
  • FIG. 2 shows a second embodiment of the invention.
  • the basic structure and the basic function of the illustrated invention Powder dosing device according to this second embodiment corresponds to that described in FIG. 1.
  • the difference to that in Fig. 1 described is that a first actuator for controlling the Suction air flow is provided at the suction port 9. With this first actuator is the suction air flow and thus the vacuum air flow 10 in Injector intake manifold 8 targeted to the desired circumstances of each Application controlled.
  • a second actuator 14 is provided downstream of the injector pump 5. by means of which an additional suction air flow is controlled in the Delivery line is insertable.
  • the delivery rate of the injector pump 5 can also be influenced in a targeted manner.
  • Corresponding cavities 17 are provided in the side windows 2 and 3, which are flowed through by coolant to prevent the powder or Powder-air mixture in the metering pump 1 is overheated.
  • a third embodiment of the invention is shown, the Function corresponds essentially to that described in FIGS. 1 and 2.
  • the Difference from the embodiment described in Fig. 2 is that
  • a control device 16 is provided, which electronically controls the drive 22 of the metering pump 1 and the second actuator for the additional suction air flow and controls the third actuator for controlling the conveying air flow in such a way that the pressure of the injector depends on the speed of the metering pump is controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Air Transport Of Granular Materials (AREA)
EP99115100A 1998-08-13 1999-08-09 Doseur de poudres avec disque de dosage Withdrawn EP0979682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19836782 1998-08-13
DE19836782 1998-08-13

Publications (1)

Publication Number Publication Date
EP0979682A1 true EP0979682A1 (fr) 2000-02-16

Family

ID=7877465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115100A Withdrawn EP0979682A1 (fr) 1998-08-13 1999-08-09 Doseur de poudres avec disque de dosage

Country Status (3)

Country Link
US (1) US6257804B1 (fr)
EP (1) EP0979682A1 (fr)
JP (1) JP2000061368A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1649935A1 (fr) * 2004-10-25 2006-04-26 Patrizia Migliaccio Le dispositif pour le dosage de granulaire ou de poudre utiliser de la force centrifuge
ITBO20090140A1 (it) * 2009-03-09 2010-09-10 Gdm Spa Unita' per la realizzazione di imbottiture assorbenti per pannolini.

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000317763A (ja) * 1999-05-12 2000-11-21 Disco Abrasive Syst Ltd 球体搬送装置
DE102005006601A1 (de) * 2005-02-11 2006-08-24 Harro Höfliger Verpackungsmaschinen GmbH Verfahren und Vorrichtung zum Transportieren von pulverförmigem Füllgut durch eine Leitung
US20060185671A1 (en) * 2005-02-17 2006-08-24 Durr Systems, Inc. Powder conveying pump
US7674076B2 (en) * 2006-07-14 2010-03-09 F. W. Gartner Thermal Spraying, Ltd. Feeder apparatus for controlled supply of feedstock
EP2374546A1 (fr) * 2010-04-12 2011-10-12 Nordson Corporation Système d'alimentation de poudre et procédé de changement de couleur dans un système d'alimentation de poudre
DE102010039473B4 (de) * 2010-08-18 2014-11-20 Gema Switzerland Gmbh Pulverversorgungsvorrichtung für eine Pulverbeschichtungsanlage
JP5520244B2 (ja) * 2011-02-21 2014-06-11 ダイヤモンドエンジニアリング株式会社 粉体供給装置、及び、粉体供給方法
EP2694199B1 (fr) * 2011-04-04 2016-07-06 Proven Technologies, LLC Système précis de manipulation de matériau en vrac sec précis et son procédé d'utilisation
GB201208215D0 (en) * 2012-05-10 2012-06-20 Ttp Labtech Ltd Storage apparatus
DE202012005898U1 (de) * 2012-06-16 2012-07-09 Harro Höfliger Verpackungsmaschinen GmbH Dosierscheibe und Kapselfülleinrichtung mit Dosierscheibe
RU2502661C1 (ru) * 2012-08-27 2013-12-27 Закрытое Акционерное Общество "Твин Трейдинг Компани" Способ вакуумно-пневматического транспортирования сыпучих материалов с высокой массовой концентрацией
EP3049551B1 (fr) * 2013-09-27 2018-10-03 United Technologies Corporation Dispositifs de distribution de poudre pulvérisée à froid avec mélange de poudre in situ
RU2535821C1 (ru) * 2013-10-31 2014-12-20 Закрытое Акционерное Общество "Твин Трейдинг Компани" Вакуумно-пневматическое устройство для транспортирования сыпучих материалов с высокой массовой концентрацией
EP2902327B1 (fr) * 2014-02-01 2016-01-27 Harro Höfliger Verpackungsmaschinen GmbH Dispositif de dosage pour poudre et procédé de dosage de poudre
BR112017020023A2 (pt) * 2015-03-19 2018-06-12 Ipeg Inc sistema de liberação de material
KR102473127B1 (ko) * 2017-03-29 2022-12-01 메르크 파텐트 게엠베하 입상 물질을 투여하기 위한 투여 장치, 분사 장치, 및 입상 물질을 기판에 도포하기 위한 방법
CN109928216A (zh) * 2019-04-25 2019-06-25 攀钢集团钛业有限责任公司 U型阀

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648901A (en) * 1970-03-16 1972-03-14 Xerox Corp Powder cloud xerographic development apparatus
US3909068A (en) * 1974-01-04 1975-09-30 Eppco Powder feeder
US4789569A (en) * 1985-01-04 1988-12-06 Saint-Gobain Vitrage Process and device for metering pulverulent materials
EP0468510A2 (fr) * 1990-07-26 1992-01-29 McNEIL-PPC, INC. Méthode pour déposer une substance sur un article
DE4242225A1 (de) * 1992-07-13 1994-02-24 Glogau Metallbeschichtung Gmbh Pulverlackpumpe für die Erzeugung und Dosierung eines unter Überdruck fließenden tribofähigen Pulvers

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US3269428A (en) * 1960-10-24 1966-08-30 St Regis Paper Co Method for packaging dry divided solid materials
US4185942A (en) * 1977-10-06 1980-01-29 The United States Of America As Represented By The Administrator Of The United States Environmental Protection Agency Material transfer system
DE2807866C2 (de) * 1978-02-23 1979-09-20 Plasmainvent Ag, Zug (Schweiz) Vorrichtung zum dosierten Zuführen von Pulver zu einer Pulververarbeitungseinheit
US4391860A (en) * 1981-01-21 1983-07-05 Eutectic Corporation Device for the controlled feeding of powder material
US4474327A (en) * 1981-09-11 1984-10-02 Allegretti & Company Fertilizer spreader
US4615649A (en) * 1984-10-12 1986-10-07 Nordson Corporation Powder pump having suction tube deflector
US4751948A (en) * 1985-10-30 1988-06-21 Kendall Mcgaw Laboratories, Inc. Method and apparatus for the accurate delivery of powders
CH678717A5 (fr) * 1989-04-08 1991-10-31 Sandoz Ag
DE8915968U1 (de) 1989-08-11 1992-12-17 Gema Volstatic Ag, St. Gallen Elektrostatische Pulverbeschichtungseinrichtung
DE4325044C2 (de) * 1993-07-26 2002-07-18 Itw Gema Ag Pulverfördervorrichtung, insbesondere für Beschichtungspulver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648901A (en) * 1970-03-16 1972-03-14 Xerox Corp Powder cloud xerographic development apparatus
US3909068A (en) * 1974-01-04 1975-09-30 Eppco Powder feeder
US4789569A (en) * 1985-01-04 1988-12-06 Saint-Gobain Vitrage Process and device for metering pulverulent materials
EP0468510A2 (fr) * 1990-07-26 1992-01-29 McNEIL-PPC, INC. Méthode pour déposer une substance sur un article
DE4242225A1 (de) * 1992-07-13 1994-02-24 Glogau Metallbeschichtung Gmbh Pulverlackpumpe für die Erzeugung und Dosierung eines unter Überdruck fließenden tribofähigen Pulvers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1649935A1 (fr) * 2004-10-25 2006-04-26 Patrizia Migliaccio Le dispositif pour le dosage de granulaire ou de poudre utiliser de la force centrifuge
ITBO20090140A1 (it) * 2009-03-09 2010-09-10 Gdm Spa Unita' per la realizzazione di imbottiture assorbenti per pannolini.
WO2010103453A1 (fr) * 2009-03-09 2010-09-16 Gdm S.P.A. Unité de fabrication de coussinets absorbants pour fesses/couches-culottes
CN102348441A (zh) * 2009-03-09 2012-02-08 Gdm股份公司 用于制造吸收尿布/失禁垫的制造单元
US8677930B2 (en) 2009-03-09 2014-03-25 Gdm S.P.A. Unit for making absorbent nappy/diaper pads

Also Published As

Publication number Publication date
US6257804B1 (en) 2001-07-10
JP2000061368A (ja) 2000-02-29

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