WO2000010723A1 - Manuelle sprühbeschichtungspistole - Google Patents
Manuelle sprühbeschichtungspistole Download PDFInfo
- Publication number
- WO2000010723A1 WO2000010723A1 PCT/EP1999/003966 EP9903966W WO0010723A1 WO 2000010723 A1 WO2000010723 A1 WO 2000010723A1 EP 9903966 W EP9903966 W EP 9903966W WO 0010723 A1 WO0010723 A1 WO 0010723A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spray coating
- coating gun
- adjustment
- electrical
- manual
- 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.)
- Ceased
Links
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
- 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
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
- B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
-
- 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
-
- 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
- B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
Definitions
- the invention relates to a manual spray coating gun according to the preamble of claim 1.
- a manual spray coating gun of this type is known from US-A-4 196 465 for powdered or granular coating material. It contains a shaft part and a handle part. A trigger can be actuated with the index finger of a hand, which encompasses the handle part. By actuating the trigger, the supply of coating material to the spray coating gun can be switched on and switched off by releasing the trigger. At the same time, the trigger switches on or off the electrical energy supply for one or more high-voltage electrodes of the gun for electrostatically charging the coating material.
- a high voltage generator for the high voltage of the electrode which is accommodated in the gun, is connected to a low voltage direct current source via a low voltage cable and contains an oscillator, a transformer and a cascade circuit with resistors and capacitors.
- the powder coating material is passed through the gun a pump in the form of an injector according to DE-C-1 266 685 pneumatically supplied.
- DE-C-34 02 945 it is known from DE-C-34 02 945 to arrange a display on the back of the gun which generates an optical signal as a function of the electrical voltage level of the electrode.
- a manual spray gun for the electrostatic spray coating of objects with liquid coating material is known.
- the trigger opens or closes a valve in the gun for the supply of the coating material.
- Guns are also known in practice in which the supply of the coating liquid is not interrupted during coating breaks, but is recirculated from the gun back to the liquid source.
- the known spray coating guns can be connected to an electrical control unit several meters away, on which the amount of coating material to be supplied per unit of time and the level of the voltage of the at least one high-voltage electrode can be set.
- the object of the invention is to make it easier for an operator to work with the spray coating gun and to provide a solution which is favorable in terms of construction and price.
- the control unit is often several meters away from the operator while the operator is standing near a coating station or a coating booth and is watching the spraying of the coating material onto an object to be coated.
- the invention has the advantage that the operator can directly change operating values manually on the spray gun and does not need to go to the control unit for this. This is particularly important if the operating values frequently have to be adjusted to other coating situations, for example to thicker or thinner coating thicknesses and / or for different objects, for example uncoated or pre-coated objects, simple objects with large surfaces or complicated objects with recesses and undercuts or openings in the surface.
- the invention is suitable for both liquid and powdery or granular coating material.
- FIG. 1 shows a manual spray coating gun 2 in combination with an electronic, preferably computerized control device 4.
- the gun 2 is connected to the control device 4 by a low-voltage cable 6 and by a hose 8 to the air-powder channel 10 of an injector 12 connected.
- Compressed air from a compressed air source 16 is supplied to the injector 12 through a conveying air line 14 as conveying air.
- the conveying air flows from an injector nozzle 18 into the axially opposite air-powder channel 10 and in the process creates an underpressure in a vacuum region 20, through which powdered or granular coating material 22 is sucked from a container 24 into the conveying air flow.
- the conveying air is set in the conveying air line 14 by an adjustable throttle 26 by a motorized actuator 27 to a desired value that can be set manually or automatically on the control device 4.
- an additional air line 28 for the supply of additional compressed air from the compressed air source 16 can be provided on the injector either at its vacuum region 20 or preferably downstream of it at the air-powder channel 10.
- the additional air line 28 there is also preferably an adjustable throttle 30, which can be adjusted by the control device 4 by means of a motorized actuator 32 to a desired value, which can either be entered on the control device 4 or is preferably calculated by the control device 4 on the basis of the desired value for the conveying air the conveying air line 14 and a predetermined target value for the total air which is to flow into the hose 8.
- the coating material 22 is electrostatically charged in a known manner by the at least one high-voltage electrode 48.
- a desired coating mode on the control unit 4 can be selected from these coating modes by simultaneously pressing the two membrane keys 40 and 42 manually. Each time an operator presses the two membrane buttons 40 and 42 on the gun 2, the coating mode changes from one to the next. This switches from the first coating mode to the second, then to the third, and then again from the third to the first coating mode. So that the operator has feedback on which coating mode he has selected, there are two light-emitting diodes 50 on the rear of the gun 2 which signal the current coating mode.
- "Coating mode” means in each case the setting of a specific target value for the electrical high voltage and / or for the electrical spray current at least one high-voltage electrode 48, which is then effective in combination with the coating material output, which can be increased or decreased by actuating one of the two membrane keys 40 or 42.
- the setting of different coating modes is also automatically linked to a setting of basic values for the discharge of coating material, which output values can then be increased or decreased by individual actuation of one or the other membrane button 40 or 42.
- one of the coating modes is suitable for coating "simple” objects, another coating mode is suitable for coating "more complicated” objects, and another coating mode is suitable for coating "already precoated” objects
- the operator no longer needs to determine and adjust the high voltage, the electrical spray current and / or the basic setting for the powder feed for the various objects based on his own experience and by observing the spray pattern.
- buttons or switches it is also possible to use the electrical high voltage and / or the electrical Set the spray current using separate buttons or switches.
- buttons or switches can be used instead of the two membrane buttons 40 and 42.
- the remote control between the gun 2 and the control device 4 is technically solved as follows: in a rear cover 51 of the gun 2 there is an electrical control circuit 52 with a quartz oscillator which oscillates at a very precise frequency. This frequency is transmitted to the control device 4 on an electrical conductor 54 (wire or strand) in the low-voltage cable 6. If one of the membrane keys 40 or 42 is pressed, this frequency is divided by four and the frequency thus divided is transmitted to the control device 4. If the other membrane button 42 or 40 is pressed, this frequency is divided by two and the frequency thus divided is transmitted to the control device 4. If both buttons 40 and 42 are pressed simultaneously, the resulting frequency is only 1/8 (one eighth) of the original frequency. As a result, only a single electrical conductor 54 is required in the low-voltage cable 6 for this remote control between the gun 2 and the control device 4, which is very advantageous for the flexibility of this low-voltage cable 6.
- the information about which coating mode is currently selected is also provided via this single electrical one Transfer conductor 54 from the control device 4 to the gun 2 as follows: the frequency output of the control circuit 52 in the gun 2 for frequency transmission to the control device 4 for the detection of the membrane keys 40 and 42 is a so-called "current output". That is, that Control device 4 can draw different amounts of current from the electrical conductor 54.
- the control circuit 52 in the gun 2 is designed in such a way that it can recognize how much electrical current flows over this electrical conductor 54. Depending on which coating mode is set, this draws Control unit 4 has a different amount of current
- the control circuit 52 in the gun 2 detects this and switches the corresponding light-emitting diode 50 on.
- the two light-emitting diodes 50 can be designed in such a way that their light color is different, for example one red and the other green. According to a modified embodiment, other displays can also be used to display the respective coating mode.
- the light-emitting diodes or corresponding other lamps or displays receive their voltage through the control circuit 52 in the gun 2 from the electrical voltage which is fed through the low-voltage cable 6 from the control device 4 to the control circuit 52 in the gun 2.
- the DC voltage is 5V, for example.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002341254A CA2341254C (en) | 1998-08-22 | 1999-06-09 | Manual spray coating gun |
| JP2000566031A JP3655192B2 (ja) | 1998-08-22 | 1999-06-09 | 手動式のスプレイ・コーティング・ガン |
| EP99927925A EP1115498B1 (de) | 1998-08-22 | 1999-06-09 | Manuelle sprühbeschichtungspistole |
| DE59914460T DE59914460D1 (de) | 1998-08-22 | 1999-06-09 | Manuelle sprühbeschichtungspistole |
| US09/763,321 US6557789B1 (en) | 1998-08-22 | 1999-06-09 | Manual spray coating gun |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19838275A DE19838275A1 (de) | 1998-08-22 | 1998-08-22 | Manuelle Sprühbeschichtungspistole |
| DE19838275.8 | 1998-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000010723A1 true WO2000010723A1 (de) | 2000-03-02 |
Family
ID=7878447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/003966 Ceased WO2000010723A1 (de) | 1998-08-22 | 1999-06-09 | Manuelle sprühbeschichtungspistole |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6557789B1 (de) |
| EP (1) | EP1115498B1 (de) |
| JP (1) | JP3655192B2 (de) |
| AT (1) | ATE369918T1 (de) |
| CA (1) | CA2341254C (de) |
| DE (2) | DE19838275A1 (de) |
| ES (1) | ES2291032T3 (de) |
| WO (1) | WO2000010723A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10003077C2 (de) * | 2000-01-25 | 2002-07-04 | Wagner Internat Ag Altstaetten | Einrichtung und Verfahren zum elektrostatischen Pulverbeschichten von Werkstücken mit unterschiedlichen Pulvern |
| US6696944B2 (en) * | 2001-06-04 | 2004-02-24 | Ford Global Technologies, Llc | Indicating system for a manually controlled applicator |
| JP2003129212A (ja) * | 2001-10-15 | 2003-05-08 | Fujimi Inc | 溶射方法 |
| DE20209377U1 (de) * | 2002-06-17 | 2003-10-30 | J. Wagner AG, Altstätten | Vorrichtung zur Programmvorwahl bei der Pulverbeschichtung |
| DE10232869A1 (de) * | 2002-07-19 | 2004-01-29 | Manfred Zorn | Regulierungseinrichtung für Sprühparameter direkt über den Abzugstaster der Pulversprühpistole |
| DE10335420A1 (de) * | 2003-08-02 | 2005-02-17 | ITW Oberflächentechnik GmbH & Co. KG | Spritzbeschichtungseinrichtung |
| US7460924B2 (en) * | 2005-06-16 | 2008-12-02 | Illinois Tool Works Inc. | In-gun power supply control |
| US8584973B2 (en) * | 2007-10-31 | 2013-11-19 | Nordson Corporation | Powder coating gun with manually operated controls on gun |
| EP2055391B2 (de) | 2007-10-31 | 2022-02-09 | Nordson Corporation | Verbesserte Sprühpistolen-Auslösevorrichtung und Verfahren |
| CL2009000218A1 (es) * | 2008-02-11 | 2009-09-11 | Akzo Nobel Coatings Int Bv | Sistema y metodo de suministro de liquido para aplicar a un sustrato, que comprende; un tanque de liquido; unc onducto de alimentacion de liquido a una abertura de descarga; una bomba de alimentacion; una valvula para cambiar entre un modo de suministro y un modo de recirculacion, y una restriccion de area de flujo en un conducto de retorno. |
| DE102008000397A1 (de) * | 2008-02-25 | 2009-08-27 | Robert Bosch Gmbh | Spritzpistole |
| AU2011227329B2 (en) | 2010-03-18 | 2015-05-28 | Graco Minnesota Inc. | Adjusting pump flow at tool |
| JP2012086142A (ja) * | 2010-10-19 | 2012-05-10 | Asahi Sunac Corp | 静電塗装用スプレーガン |
| JP5584088B2 (ja) * | 2010-10-19 | 2014-09-03 | 旭サナック株式会社 | 静電塗装用スプレーガン及び静電塗装システム |
| DE102011088373A1 (de) * | 2011-12-13 | 2013-06-13 | Robert Bosch Gmbh | Handfarbabgabevorrichtung |
| DE102014215338B4 (de) | 2014-08-04 | 2016-03-31 | Gema Switzerland Gmbh | Pulverabgabevorrichtung und Pulverbeschichtungsanlage zum Pulversprühbeschichten von Gegenständen |
| FR3048894B1 (fr) * | 2016-03-21 | 2018-04-20 | Exel Industries | Pistolet manuel d'application d'un produit de revetement et station d'application d'un produit de revetement comprenant un tel pistolet |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008645A (en) * | 1958-01-14 | 1961-11-14 | Sames Mach Electrostat | Electrostatic spraying apparatus |
| DE1266685B (de) | 1966-06-28 | 1968-04-18 | Gema A G Appbau | Pneumatische Foerdereinrichtung mit regelbarer Foerderleistung |
| US4196465A (en) | 1977-12-08 | 1980-04-01 | Gema Ag Apparatebau | Electrostatic power coating gun |
| US4216915A (en) * | 1977-05-12 | 1980-08-12 | Kurt Baumann | Electrostatic powder spray gun |
| US4441656A (en) | 1982-01-29 | 1984-04-10 | J. Wagner Ag | Electrostatic disabling switch for electrostatic spray guns |
| DE3402945A1 (de) | 1984-01-28 | 1985-08-01 | Ransburg-Gema AG, St.Gallen | Elektrostatische spruehpistole zum spruehbeschichten |
| US4653696A (en) * | 1985-03-06 | 1987-03-31 | Rath Anton | Electrostatic spray gun for coating material |
| US5080289A (en) * | 1990-05-25 | 1992-01-14 | Graco Inc. | Spraying voltage control with hall effect switches and magnet |
| EP0899015A1 (de) * | 1997-08-21 | 1999-03-03 | Ransburg Industrial Finishing KK | Pulversprühpistole mit Schalter zum Verändern der versprühten Pulvermenge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740612A (en) * | 1971-05-28 | 1973-06-19 | Champion Spark Plug Co | Apparatus for coating with electrostatically charged particulate materials |
| US4437614A (en) * | 1982-09-28 | 1984-03-20 | Binks Manufacturing Company | Electrostatic air atomization spray coating system |
| US4682735A (en) * | 1983-06-29 | 1987-07-28 | Graco Inc. | Electrostatic field indicator light for electrostatic nozzles |
| EP0676242A3 (de) * | 1994-03-31 | 1996-06-05 | Sames Sa | Verfahren und Vorrichtung zum elektrostatischen Sprühbeschichten. |
| US5678770A (en) * | 1996-01-03 | 1997-10-21 | Shah; Amal B. | Powder coating spray gun with resettable voltage multiplier |
-
1998
- 1998-08-22 DE DE19838275A patent/DE19838275A1/de not_active Ceased
-
1999
- 1999-06-09 WO PCT/EP1999/003966 patent/WO2000010723A1/de not_active Ceased
- 1999-06-09 EP EP99927925A patent/EP1115498B1/de not_active Expired - Lifetime
- 1999-06-09 JP JP2000566031A patent/JP3655192B2/ja not_active Expired - Fee Related
- 1999-06-09 AT AT99927925T patent/ATE369918T1/de not_active IP Right Cessation
- 1999-06-09 US US09/763,321 patent/US6557789B1/en not_active Expired - Lifetime
- 1999-06-09 ES ES99927925T patent/ES2291032T3/es not_active Expired - Lifetime
- 1999-06-09 CA CA002341254A patent/CA2341254C/en not_active Expired - Fee Related
- 1999-06-09 DE DE59914460T patent/DE59914460D1/de not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008645A (en) * | 1958-01-14 | 1961-11-14 | Sames Mach Electrostat | Electrostatic spraying apparatus |
| DE1266685B (de) | 1966-06-28 | 1968-04-18 | Gema A G Appbau | Pneumatische Foerdereinrichtung mit regelbarer Foerderleistung |
| US4216915A (en) * | 1977-05-12 | 1980-08-12 | Kurt Baumann | Electrostatic powder spray gun |
| US4196465A (en) | 1977-12-08 | 1980-04-01 | Gema Ag Apparatebau | Electrostatic power coating gun |
| US4441656A (en) | 1982-01-29 | 1984-04-10 | J. Wagner Ag | Electrostatic disabling switch for electrostatic spray guns |
| DE3402945A1 (de) | 1984-01-28 | 1985-08-01 | Ransburg-Gema AG, St.Gallen | Elektrostatische spruehpistole zum spruehbeschichten |
| US4653696A (en) * | 1985-03-06 | 1987-03-31 | Rath Anton | Electrostatic spray gun for coating material |
| US5080289A (en) * | 1990-05-25 | 1992-01-14 | Graco Inc. | Spraying voltage control with hall effect switches and magnet |
| EP0899015A1 (de) * | 1997-08-21 | 1999-03-03 | Ransburg Industrial Finishing KK | Pulversprühpistole mit Schalter zum Verändern der versprühten Pulvermenge |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3655192B2 (ja) | 2005-06-02 |
| ES2291032T3 (es) | 2008-02-16 |
| EP1115498A1 (de) | 2001-07-18 |
| ATE369918T1 (de) | 2007-09-15 |
| CA2341254C (en) | 2005-04-26 |
| US6557789B1 (en) | 2003-05-06 |
| DE59914460D1 (de) | 2007-09-27 |
| EP1115498B1 (de) | 2007-08-15 |
| CA2341254A1 (en) | 2000-03-02 |
| JP2002523213A (ja) | 2002-07-30 |
| DE19838275A1 (de) | 2000-02-24 |
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