EP0636420A2 - Dispositif pour transporter de la poudre, en particulier de la poudre de revêtement - Google Patents

Dispositif pour transporter de la poudre, en particulier de la poudre de revêtement Download PDF

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Publication number
EP0636420A2
EP0636420A2 EP94108909A EP94108909A EP0636420A2 EP 0636420 A2 EP0636420 A2 EP 0636420A2 EP 94108909 A EP94108909 A EP 94108909A EP 94108909 A EP94108909 A EP 94108909A EP 0636420 A2 EP0636420 A2 EP 0636420A2
Authority
EP
European Patent Office
Prior art keywords
air
powder
conveying
target
rate
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.)
Granted
Application number
EP94108909A
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German (de)
English (en)
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EP0636420B1 (fr
EP0636420B2 (fr
EP0636420A3 (fr
Inventor
Felix Mauchle
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.)
Gema Switzerland GmbH
Original Assignee
Gema Switzerland GmbH
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
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Application filed by Gema Switzerland GmbH filed Critical Gema Switzerland GmbH
Publication of EP0636420A2 publication Critical patent/EP0636420A2/fr
Publication of EP0636420A3 publication Critical patent/EP0636420A3/fr
Publication of EP0636420B1 publication Critical patent/EP0636420B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1683—Arrangements for supplying liquids or other fluent material specially adapted for particulate materials

Definitions

  • the invention relates to a powder conveying device, in particular for coating powder, according to the preamble of claim 1.
  • Injectors operating according to the Venturi tube principle as jet pumps for the pneumatic conveying of coating powder are known from DE-PS 1 266 685 (US-PS 3 504 945).
  • Spray devices in the form of spray guns for the electrostatic spray coating of objects with coating powder are known from US Pat. No. 4,196,465.
  • From DE-OS 39 26 624 A1 it is known to supply an injector conveying air flow and an additional air flow to an injector. The conveying air flow serves to create a vacuum which sucks powder into the injector and to transport the sucked powder to a spraying device with which the powder is sprayed onto an object to be coated.
  • the additional air is used to adjust the strength of the negative pressure or to maintain a certain total air volume if the conveying air volume falls below a certain value. So that the total amount of air can be kept at a desired value, the conveying air and the additional air is regulated separately in such a way that the total amount of air has a desired constant value regardless of the proportions of conveying air and additional air.
  • the air is required to convey the powder.
  • the total air flow must have a certain minimum speed because pulsations of the powder-air mixture flow occur in the fluid lines at a speed of the powder-air mixture of less than 10-15 m / sec. However, too much or too quickly flowing air is undesirable because it undesirably affects the cloud of the sprayed powder and the coating quality.
  • the powder flow rate fed to the spraying device (amount of powder conveyed per unit of time) is increased or decreased.
  • a practical value for the powder rate is 300 g / min.
  • the delivery air rate and the additional air rate must be set so that the desired powder delivery rate is generated, but the total air delivery rate consisting of delivery air and additional air remains constant or assumes a desired value.
  • the necessary settings for the conveying air rate and the additional air rate are made by hand in DE-OS 39 26 624 A1.
  • the delivery air rates and additional air rates are set on pressure regulators. A certain pressure results in a certain amount of air conveyed per unit of time for the line system of the system in question. Due to many unknown pressure drops and changing flow cross sections in the powder conveying device, the "pressure control” is not very precise. More precise would be a "volume control", through which the "volume of the conveyed air conveyed per unit time" and the "volume of the additional air conveyed per unit time” is regulated. Volume controllers and sensors for determining the conveyed air volume are known, but not for conveying powder.
  • the object of the invention is to provide a device in which the required adjustment of the conveying air quantity per unit of time and the additional air quantity per unit of time is possible with less time and less personnel expenditure if a desired powder conveying quantity per unit of time for a desired total conveyed air quantity per unit of time is set or changed.
  • the invention has the following advantages in particular: after storing a calibration diagram for a particular powder system, in particular electrostatic powder spray coating system, the desired amount of powder conveyed per unit of time can be changed in a simple manner and this change results in the new amount required for this completely automatically while maintaining the desired total air volume Amount of conveyed air conveyed per unit of time and additional air conveyed per unit of time.
  • Several diagram lines can be stored in the diagram, of which each diagram line represents a specific total air quantity conveyed per unit of time, via which the conveying air quantity required for a specific powder quantity can be "mirrored" from one diagram axis with the powder quantities to another diagram axis for conveying air quantities. This "mirroring" means "reading” or "calculating" by the computer.
  • the computer also forms the difference between the total air volume and the resulting conveying air volume. This difference is the value for the additional air volume that is required for the selected powder volume and can be "zero" in extreme cases.
  • the invention enables remote control in such a way that the computer and its signal inputs can be arranged at a location remote from the fluid lines of the conveying air and the additional air.
  • pressure regulators must be set manually on the lines of the additional air and the conveying air.
  • Another advantage of the invention is the possibility of using volume flow controllers for controlling the conveying air and the additional air without complicated control circuits. A pressure regulator can be added to the volume flow regulators in order to achieve even better control accuracy.
  • the powder conveying device according to the invention for coating powder shown in FIG. 1 contains an injector 2, in which, according to the principle of a Venturi tube, a conveying air flow of a conveying air line 4 generates a negative pressure in a negative pressure area 6, through which powder 8 is sucked in from a powder container 10 and then from the conveying air flow through a powder-air line 12 to an electrostatic powder spray device 16 is transported further, which charges the powder electrostatically and sprays along an arrow 18 onto an object 20 to be coated.
  • the spray device 16 can contain a high voltage generator for charging the powder or can be connected to an external high voltage source.
  • the drawings show an embodiment in which the high voltage generator is integrated in the spray device 16 and the desired high voltage can be set via an electrical line 22 and a computer 24.
  • the high voltage for electrostatically charging the powder can be in the range between 0 and 140,000 volts and can be set as desired.
  • An additional air flow 26 can be used to add an additional air flow to the conveying air flow in the vacuum region 6.
  • the additional air flow of the additional air line 26 can be introduced into the conveying air flow at a location located downstream of the vacuum region 6, either still inside the injector 2 or at a location located downstream of it in the powder-air line 12.
  • the conveying air comes from a compressed air source 30 via a conveying air regulator 32 into the conveying air line 4.
  • the additional air arrives from the compressed air source 30 via an additional air regulator 34 into the additional air line 26.
  • the two regulators 32 and 34 can be compressed air regulators, but are volume flow regulators in the preferred embodiment shown which regulate the volume of air flowing through them per unit of time.
  • the conveying air volume flow controller 32 receives a conveying air volume setpoint signal FV-Soll from the computer 24 via an electrical conveying air volume setpoint line 36 and from a conveying air volume sensor 38 in the conveying air line 4 an electrical conveying air volume actual value line 40 an electric conveying air volume actual value signal FV-actual.
  • the conveying air volume flow controller 32 regulates the conveying gas volume flowing through it per unit time as a function of this setpoint signal and this actual value signal of the lines 36 and 40.
  • the additional air volume flow controller 34 receives an electrical additional air volume setpoint signal ZV-Soll from the computer 24 via an electrical additional air volume setpoint line 42 and an electrical additional air volume actual value sensor 44 in the additional air line 26 via an electrical additional air volume actual value line 46 Auxiliary air volume actual value signal ZV-Ist.
  • the additional air volume flow controller 34 regulates the additional air volume flowing through it per unit of time as a function of this setpoint signal ZV-Soll of line 42 and this actual value signal ZV-Ist of line 46. Since air has a different volume depending on the pressure and temperature, the two volume pressure regulators 32 and 34 are calibrated so that they convey a so-called standard cubic meter "Nm3" per hour at an atmospheric pressure and a temperature of 0 ° C.
  • a plurality of predetermined powder delivery rates (delivered powder quantity per unit time "m", for example in g / min) on a diagram axis and a plurality of delivery air rates (delivered delivery air per unit time "on a second diagram axis running at right angles to it).
  • FV " for example in Nm3 / h
  • GV total air delivered per unit of time consisting of conveying air and possibly additional air added
  • the corresponding conveying air volume value FV1 or FV2 is obtained for the desired total air volume value GV1 by going from the value m1 or m2 parallel to the conveying air volume axis FV to the total air volume straight line GV1, and then parallel to the powder mass axis m to the conveying air volume axis FV.
  • the conveying air volume values are plotted, for example, in Nm3 / h on the conveying air volume axis FV.
  • Each powder spraying device 16 of a powder coating system can have conveying air lines, additional air lines and powder-air lines of different lengths and with different cross sections.
  • a calibration chart corresponding to calibration chart 50 may be stored in computer 24.
  • a line can be stored in the calibration diagram 50 for several total air volume values, via which a line can be used to determine a corresponding conveying air volume value FV1 or FV2 for a specific powder mass value such as m1 or m2.
  • a straight line for a total air volume value GV1 and a dashed line for another total air volume value GV2 are stored in the diagram 50.
  • a conveying air volume FV1 ' is required for a desired powder mass per unit time m1.
  • the computer 24 calculates the additional air volume value ZV from the total air volume GV2 and the calculated conveying air volume FV1 ', which is not contained in the diagram 50, but from the computer 24 as an additional air volume setpoint signal ZV-Soll on the electrical line 42 to the additional air volume flow controller 34 is given.
  • the conveying air volume value FV for example FV1 'or FV1 or FV2, which can be taken from the diagram, is given by the computer 24 to the conveying air volume flow controller 32 as an electric conveying air volume setpoint signal FV-Soll on the electrical line 36.
  • the desired powder mass target value "m target" can be variably entered into the computer 24 at an input 52.
  • the total air volume setpoint "GV-Set” can be variably entered into the computer 24 at an input 54.
  • a powder mass sensor 56 which can be accommodated in the injector 2 or can be arranged downstream of it on the powder-air line 12, generates an electrical signal as a function of the powder mass "m” conveyed per unit of time by the total air flow (conveying air plus any additional air added) Powder mass actual value signal m-actual and transmits this on an electrical line 58 to a powder mass actual value input 60 of the computer 24.
  • the computer 24 calculates from the powder mass target value signal m target at its input 52 and the powder mass Actual value signal m-actual at its input 60 a powder mass target-actual comparison signal and uses this as powder mass signal m1, m2 etc.
  • the powder mass value "m" selected for the calculation on the powder mass diagram axis m is only the same size as the target powder mass value m setpoint entered at input 52 if the actual powder mass value m actual of the powder mass sensor 56 is equal to the target powder mass value m-target is.
  • the computer contains in the usual way at least one processor and one data memory.
  • a quantity delivered per unit of time can also be referred to as a "rate".
  • the terms powder mass rate, conveying air rate and additional air rate are also used below.
  • the computer 24 is also provided with an input 62 for setting a high-voltage setpoint HS-Soll, depending on which the computer 24 sends a signal for setting the high voltage via the electrical line 22 of the spray device 16.
  • the entire powder conveying device can be controlled and regulated from the computer 24 remotely from the spray device 16 and remotely from the volume flow controllers 32 and 34.
  • FIG. 3 parts corresponding to parts of Fig. 1 are given the same reference numerals.
  • the embodiment of FIG. 3 is functionally essentially the same as that of FIG. 1.
  • the differences are that in FIG. 3 the conveying air volume flow controller 32 does not directly affect the conveying air volume flow of the compressed air source 30 in the conveying air line 4, but indirectly by the conveying air volume flow controller 32 does not generate an electrical conveying air volume setpoint signal FV-Soll from FIG.
  • an auxiliary air pressure regulator 134 is arranged in a similar manner instead of the auxiliary air volume flow regulator 34 in the auxiliary air path between the compressed air source 30 and the auxiliary air line 26, and the auxiliary air volume controller 34, which is still present, generates a signal ZV-Soll from FIG 1 Corresponding electrical additional air pressure setpoint signal ZP target, which is fed to the additional air pressure regulator 134 via an electrical setpoint signal line 142.
  • the conveying air pressure controller 132 receives electrical conveying air pressure actual value signals FP-actual from a compressed air sensor 138 in the conveying air line 4 via an electrical conveying air pressure actual value line 140, compares these actual value signals FP actual with the electrical conveying air pressure desired value signals FP desired the electrical Conveying air pressure setpoint signal line 136 of the conveying air volume flow controller 32 and, depending on the comparison result, regulates the conveying air pressure with which the conveying air is supplied from the compressed air source 30 to the injector 2 via the conveying air line 4.
  • the conveying air volume flow controller 32 receives electric conveying air volume actual value signals FV-actual from the conveying air volume flow sensor 38 in the conveying air line 4 via the electric conveying air volume actual value line 40 as in the embodiment shown in FIG. 1. 3 is also a “volume flow control”.
  • the additional air pressure regulator 134 receives electrical from a compressed air sensor 144 in the additional air line 26 via an electrical additional air pressure actual value line 146 Additional air actual value signals ZP-Ist, compares it with the additional air setpoint signals ZP-Soll of the additional air pressure setpoint line 142 and, depending on the comparison result, generates an additional air pressure with which the additional air is supplied from the compressed air source 30 to the additional air line 26 .
  • the additional air volume flow controller 34 receives electrical additional air volume actual value signals ZV-Actual from the additional air volume flow sensor 44 in the additional air line 26 via the electrical additional air volume actual value line 46 as in the embodiment shown in FIG. 1.
  • the additional air control in FIG. 3 is also a “volume flow control”.
  • the conveying air volume flow controller 32 and the additional air volume flow controller 34 can, according to FIG. 1, be designed outside of the computer 24 as separate devices connected to it or, according to FIG. 3, integrated into the computer and partially or completely formed by the software and / or hardware of the computer 24.
  • 3 shows the diagram 50 stored in it as part of the computer 24 and the hardware and software of the computer 24 and the dependency of the diagram 50, the conveying air volume flow controller 32 and the additional air volume flow controller 34 on each other schematically by a square 124.
  • computer here means an electrical control device which, in addition to the basic components of processor, memory, input and output units, can also contain further electronic or electrical elements.
  • a system for electrostatic powder coating normally has several spray devices 16. Each spray device requires the elements shown in FIGS. 1 to 3. However, the computer 24 can be designed so that a single computer 24 can perform the functions for all the spray devices 16.
  • FIG. 3 shows a central electronic control system 200 for a plurality of spray devices 16, each of which has its own computer 24.
  • the computers are in a bidirectional data exchange with the central control system 200, which is shown schematically in FIG. 3 by a double arrow 202.
  • the computer 24 receives from the central control system 200 the desired powder mass value m-target, the total air volume target value GV-target, and, if desired, also the high-voltage target value HS-target, which is the desired high-voltage value with which the spraying device 16 electrostatically charge the powder.
  • Another modified embodiment can consist in that the computer 24 is contained in the central control system.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Paints Or Removers (AREA)
EP94108909A 1993-07-26 1994-06-10 Dispositif pour transporter de la poudre, en particulier de la poudre de revêtement Expired - Lifetime EP0636420B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4325044 1993-07-26
DE4325044A DE4325044C2 (de) 1993-07-26 1993-07-26 Pulverfördervorrichtung, insbesondere für Beschichtungspulver

Publications (4)

Publication Number Publication Date
EP0636420A2 true EP0636420A2 (fr) 1995-02-01
EP0636420A3 EP0636420A3 (fr) 1995-09-13
EP0636420B1 EP0636420B1 (fr) 1998-10-28
EP0636420B2 EP0636420B2 (fr) 2002-01-02

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EP94108909A Expired - Lifetime EP0636420B2 (fr) 1993-07-26 1994-06-10 Dispositif pour transporter de la poudre, en particulier de la poudre de revêtement

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US (1) US5702209A (fr)
EP (1) EP0636420B2 (fr)
DE (2) DE4325044C2 (fr)
ES (1) ES2123077T5 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763385A1 (fr) * 1995-09-18 1997-03-19 Elpatronic Ag Procédé de transport d'un matériaux pulvérulent au moyen d'un injecteur
EP0780160A1 (fr) * 1995-12-23 1997-06-25 ITW Gema AG Dispositif de revêtement de poudre par pulvérisation
DE19608432A1 (de) * 1996-03-05 1997-09-18 Medicoat Ag Vorrichtung zur Regelung des dosierten Zuführens von Pulver zu einer Pulververarbeitungseinheit
WO2000010726A1 (fr) * 1998-08-22 2000-03-02 Itw Gema Ag Dispositif d'application de revetement en poudre
WO2000010725A1 (fr) 1998-08-22 2000-03-02 Itw Gema Ag Dispositif d'application de revetement en poudre
FR2824283A1 (fr) 2001-05-03 2002-11-08 Eisenmann France Sarl Procede de regulation du debit de poudre transportee par un flux d'air, et dispositif pour sa mise en oeuvre
WO2003099450A1 (fr) 2002-05-10 2003-12-04 Eisenmann France Sarl Procede de regulation du debit de poudre transportee par un flux d'air, et dispositif pour sa mise en oeuvre
DE102007046806A1 (de) 2007-09-29 2009-04-02 Itw Gema Gmbh Pulversprühbeschichtungsvorrichtung und Pulverfördervorrichtung hierfür
DE102007046738A1 (de) 2007-09-28 2009-04-02 Itw Gema Gmbh Pulversprühbeschichtungsverfahren und -vorrichtung
DE102007049169A1 (de) 2007-10-13 2009-04-16 Itw Gema Gmbh Pulversprühbeschichtungs-Steuergerät und seine Kombination mit einer Pulverfördervorrichtung oder mit einer Pulversprühbeschichtungsvorrichtung
DE102007049170A1 (de) 2007-10-13 2009-04-16 Itw Gema Gmbh Pulversprühbeschichtungsvorrichtung oder Pulverfördervorrichtung einer Pulversprühbeschichtungsvorrichtung
DE102007048520A1 (de) 2007-10-10 2009-04-16 Itw Gema Gmbh Sprühbeschichtungspulver-Fördervorrichtung und Pulversprühbeschichtungsvorrichtung

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601335C2 (de) * 1996-01-16 1998-03-12 Wolfgang Peltzer Vorrichtung zum Einblasen von teilchenförmigen Dämmstoffen
DE19606214B4 (de) * 1996-02-20 2006-06-01 Abb Research Ltd. Verfahren und Einrichtung zur Steuerung des Austritts eines fluidisierten Feststoffs aus einem Behälter
DE19613967A1 (de) * 1996-04-09 1997-10-16 Gema Volstatic Ag Vorrichtung zur Sprühbeschichtung
DE19738141C2 (de) * 1997-09-01 2003-06-05 Wagner Int Steuersystem einer Beschichtungsanlage mit einer LON-Busstruktur
DE19748821A1 (de) * 1997-11-05 1999-05-06 Itw Gema Ag Pulver-Sprühbeschichtungsvorrichtung
US6073818A (en) * 1998-06-19 2000-06-13 Genzyme Transgenics Corporation Apparatus for controlled delivery of powdered solid materials
EP0979682A1 (fr) * 1998-08-13 2000-02-16 B a r m a g AG Doseur de poudres avec disque de dosage
DE19838269A1 (de) * 1998-08-22 2000-02-24 Itw Gema Ag Pulverbeschichtungsvorrichtung
DE10111383B4 (de) * 2001-03-09 2006-02-09 Wagner International Ag Verfahren zur Förderung von Beschichtungspulver zu einer Beschichtungseinheit und zugehörige Pulverfördervorrichtung
DE10111891A1 (de) * 2001-03-13 2002-11-28 Itw Gema Ag Pulversprüheinrichtung für Beschichtungspulver
DE10237747A1 (de) * 2002-08-17 2004-02-26 Abb Patent Gmbh Robotersystem zum Beschichten von Werkstücken
DE10324076A1 (de) * 2003-05-27 2004-12-30 Dürr Systems GmbH Fördereinrichtung für eine Lackieranlage
DE102004052949A1 (de) * 2004-10-29 2006-05-04 Nordson Corp., Westlake Verfahren und Vorrichtung zur Überwachung von Strömungsverhältnissen in einem Leitungsstrang
US7731456B2 (en) * 2005-10-07 2010-06-08 Nordson Corporation Dense phase pump with open loop control
DE102007049219A1 (de) * 2007-10-13 2009-04-16 Itw Gema Gmbh Pulverfördervorrichtung für Pulversprühbeschichtungsvorrichtungen
BR112015024418B8 (pt) * 2013-04-03 2021-03-23 Gema Switzerland Gmbh esteira transportadora de pó e método para operar uma esteira transportadora de pó
CA2947398A1 (fr) * 2014-04-28 2015-11-05 Marangoni S.P.A. Unite de distribution pour un materiau particulaire
EP3100968A1 (fr) * 2015-06-01 2016-12-07 Xerex Ab Dispositif et système de transport pneumatique d'un matériau
PL3685924T3 (pl) * 2019-01-25 2022-04-19 Wagner International Ag Urządzenie przenoszące proszek do proszku powlekającego i instalacja do powlekania proszkowego z urządzeniem przenoszącym proszek
DE102021202325A1 (de) 2021-03-10 2022-09-15 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff und Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff
CN113110626B (zh) * 2021-04-28 2022-06-24 北京航空航天大学 矩形透明可调文氏管

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026498A1 (de) * 1969-06-02 1970-12-17 Ransburg Electro-Coating Corp., Indianapolis, Ind. (V.St.A.) Vorrichtung und Verfahren zum Verteilen teilchenförmigen Materials
FR2441565A1 (fr) * 1978-11-14 1980-06-13 Gema Ag Dispositif d'entrainement pneumatique a puissance reglable pour produits divises se presentant sous forme pulverulente ou meme granulaire
US4483646A (en) * 1982-05-07 1984-11-20 Denka Consultant & Engineering Co., Ltd. Apparatus for distributing powdered particles
US4607987A (en) * 1984-11-26 1986-08-26 Kice Metal Products Co., Inc. Multiple lift pneumatic conveying air velocity control apparatus and method for controlling the pneumatic velocity in a multiple lift pneumatic conveying air velocity control apparatus
EP0297463A1 (fr) * 1987-07-01 1989-01-04 The Perkin-Elmer Corporation Système d'alimentation en poudre avec an régulateur de coulée de poudre en circuit fermé et procédé correspondant
DE3423094C2 (fr) † 1984-06-22 1990-10-04 J. Wagner Gmbh, 7990 Friedrichshafen, De
EP0412289A2 (fr) † 1989-08-11 1991-02-13 ITW Gema AG Dispositif de pulvérisation électrostatique
US5167714A (en) † 1989-09-29 1992-12-01 Nordson Corporation Powder coating system with configurable controller and dew point detection
EP0297309B1 (fr) * 1987-07-02 1993-12-22 ITW Gema AG Procédé et dispositif de mesure et de régulation du débit de poudre dans une installation de revêtement par poudrage par pulvérisation

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522179B2 (de) * 1975-05-17 1980-06-26 Knorr-Bremse Gmbh, 8000 Muenchen Rechnergestützte Prüfeinrichtung, insbesondere fur pneumatische Bremssteuerventile von Schienenfahrzeugen
DE2849269C2 (de) * 1978-11-14 1980-11-27 Gema Ag, Apparatebau, St. Gallen (Schweiz) Verfahren zum Pulversprühen und pneumatische Pulversprüheinrichtung
GB2087264A (en) * 1980-11-19 1982-05-26 Graco Inc A speed control apparatus for operating a centrifugal atomiser
DE3134180C2 (de) * 1981-08-28 1983-11-24 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg Verfahren zur Dosierung von pneumatisch transportiertem Schüttgut
DE3201105C1 (de) * 1982-01-15 1983-10-13 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg Verfahren und Anlage zur Versorgung mehrerer Verbraucher mit dosierten Teilmengen eines Schuettgutes
US4614300A (en) * 1982-04-19 1986-09-30 E. I. Du Pont De Nemours And Company Computerized spray machine
DE3219813C2 (de) * 1982-05-26 1984-04-05 Denka Consultant & Engineering Co., Ltd., Tokyo Vorrichtung zum Fördern pulverförmiger Stoffe von einem unter Druck stehenden Behälter zu einer Abgabestelle
DE3441938A1 (de) * 1984-11-16 1986-05-22 Preh, Industrieausrüstungen GmbH, 8740 Bad Neustadt Einrichtung zum vergleich von zu messenden wertpaaren mit einer sollkennlinie
JPH0614786B2 (ja) * 1984-12-28 1994-02-23 富士電機株式会社 Ｐｗｍ信号発生回路
JPS61155124A (ja) * 1984-12-28 1986-07-14 Kawasaki Steel Corp 粉粒体定量輸送制御方法
DE3729705A1 (de) * 1987-09-04 1989-03-23 Gema Ransburg Ag Pulverbeschichtungsanlage, insbesondere fuer emailpulver
DE3805531A1 (de) * 1988-02-23 1989-08-31 Intec Maschinenbau Gmbh Verfahren zum foerdern von pulver und vorrichtung zur durchfuehrung dieses verfahrens
DE3822835A1 (de) * 1988-07-06 1990-03-08 Josef Schucker Verfahren und anordnung zum lackieren von werkstueckoberflaechen
DE3931962A1 (de) * 1989-09-25 1991-04-04 Rexroth Mannesmann Gmbh Ansteuerelektronik fuer ein elektrisch verstellbares stellglied
US5071289A (en) * 1989-12-27 1991-12-10 Alpheus Cleaning Technologies Corp. Particulate delivery system
DE4002760A1 (de) * 1990-01-12 1991-07-18 Schwing Gmbh F Betonpumpe fuer das nassspritzverfahren
EP0438976A3 (en) * 1990-01-24 1991-12-27 Siegfried Frei Method and device for controlling powder flow in a powder coating installation
US5271695A (en) * 1990-07-07 1993-12-21 Gema Volstatic Ag Device for pneumatically feeding powder from a container
DE4030539A1 (de) * 1990-09-27 1992-04-16 Dilthey Ulrich Prof Dr Ing Pulverdosiervorrichtung fuer einen brenner zum thermischen beschichten eines grundwerkstoffs mit einem pulverfoermigen zusatzwerkstoff
DE4125938A1 (de) * 1991-08-05 1993-02-11 Siemens Ag Verfahren und vorrichtung zum foerdern von pulver

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026498A1 (de) * 1969-06-02 1970-12-17 Ransburg Electro-Coating Corp., Indianapolis, Ind. (V.St.A.) Vorrichtung und Verfahren zum Verteilen teilchenförmigen Materials
FR2441565A1 (fr) * 1978-11-14 1980-06-13 Gema Ag Dispositif d'entrainement pneumatique a puissance reglable pour produits divises se presentant sous forme pulverulente ou meme granulaire
US4483646A (en) * 1982-05-07 1984-11-20 Denka Consultant & Engineering Co., Ltd. Apparatus for distributing powdered particles
DE3423094C2 (fr) † 1984-06-22 1990-10-04 J. Wagner Gmbh, 7990 Friedrichshafen, De
US4607987A (en) * 1984-11-26 1986-08-26 Kice Metal Products Co., Inc. Multiple lift pneumatic conveying air velocity control apparatus and method for controlling the pneumatic velocity in a multiple lift pneumatic conveying air velocity control apparatus
EP0297463A1 (fr) * 1987-07-01 1989-01-04 The Perkin-Elmer Corporation Système d'alimentation en poudre avec an régulateur de coulée de poudre en circuit fermé et procédé correspondant
EP0297309B1 (fr) * 1987-07-02 1993-12-22 ITW Gema AG Procédé et dispositif de mesure et de régulation du débit de poudre dans une installation de revêtement par poudrage par pulvérisation
EP0412289A2 (fr) † 1989-08-11 1991-02-13 ITW Gema AG Dispositif de pulvérisation électrostatique
DE3926624A1 (de) * 1989-08-11 1991-02-14 Gema Ransburg Ag Elektrostatische pulverbeschichtungseinrichtung
US5167714A (en) † 1989-09-29 1992-12-01 Nordson Corporation Powder coating system with configurable controller and dew point detection

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5906858A (en) * 1995-09-18 1999-05-25 Elpatronic Ag Method and apparatus for conveying a pulverulent material by means of an injector
EP0763385A1 (fr) * 1995-09-18 1997-03-19 Elpatronic Ag Procédé de transport d'un matériaux pulvérulent au moyen d'un injecteur
EP0780160A1 (fr) * 1995-12-23 1997-06-25 ITW Gema AG Dispositif de revêtement de poudre par pulvérisation
US5776249A (en) * 1995-12-23 1998-07-07 Gema Volstatic Ag Powder spray coating device
DE19608432A1 (de) * 1996-03-05 1997-09-18 Medicoat Ag Vorrichtung zur Regelung des dosierten Zuführens von Pulver zu einer Pulververarbeitungseinheit
US6598803B1 (en) 1998-08-22 2003-07-29 Itw Gema Ag Powder spray coating device
WO2000010726A1 (fr) * 1998-08-22 2000-03-02 Itw Gema Ag Dispositif d'application de revetement en poudre
WO2000010725A1 (fr) 1998-08-22 2000-03-02 Itw Gema Ag Dispositif d'application de revetement en poudre
US6382521B1 (en) 1998-08-22 2002-05-07 Itw Gema Ag Spray powder-coating system
FR2824283A1 (fr) 2001-05-03 2002-11-08 Eisenmann France Sarl Procede de regulation du debit de poudre transportee par un flux d'air, et dispositif pour sa mise en oeuvre
WO2003099450A1 (fr) 2002-05-10 2003-12-04 Eisenmann France Sarl Procede de regulation du debit de poudre transportee par un flux d'air, et dispositif pour sa mise en oeuvre
DE102007046738A1 (de) 2007-09-28 2009-04-02 Itw Gema Gmbh Pulversprühbeschichtungsverfahren und -vorrichtung
DE102007046806A1 (de) 2007-09-29 2009-04-02 Itw Gema Gmbh Pulversprühbeschichtungsvorrichtung und Pulverfördervorrichtung hierfür
US8430640B2 (en) 2007-09-29 2013-04-30 Felix Mauchle Powder spray coating device and powder transport device therefor
DE102007048520A1 (de) 2007-10-10 2009-04-16 Itw Gema Gmbh Sprühbeschichtungspulver-Fördervorrichtung und Pulversprühbeschichtungsvorrichtung
DE102007049169A1 (de) 2007-10-13 2009-04-16 Itw Gema Gmbh Pulversprühbeschichtungs-Steuergerät und seine Kombination mit einer Pulverfördervorrichtung oder mit einer Pulversprühbeschichtungsvorrichtung
DE102007049170A1 (de) 2007-10-13 2009-04-16 Itw Gema Gmbh Pulversprühbeschichtungsvorrichtung oder Pulverfördervorrichtung einer Pulversprühbeschichtungsvorrichtung
US8333165B2 (en) 2007-10-13 2012-12-18 Itw Gema Gmbh Powder spraycoating control system and its combination with powder feeding device or with powder spraycoating device

Also Published As

Publication number Publication date
EP0636420B1 (fr) 1998-10-28
DE4325044C2 (de) 2002-07-18
US5702209A (en) 1997-12-30
ES2123077T5 (es) 2002-07-16
DE4325044A1 (de) 1995-02-02
DE59407168D1 (de) 1998-12-03
EP0636420B2 (fr) 2002-01-02
ES2123077T3 (es) 1999-01-01
EP0636420A3 (fr) 1995-09-13

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