EP2056970A1 - Reinigungsvorrichtung für zerstäuber, insbesondere farbspritzpistolen, sowie verfahren zur reinigung eines zerstäubers - Google Patents
Reinigungsvorrichtung für zerstäuber, insbesondere farbspritzpistolen, sowie verfahren zur reinigung eines zerstäubersInfo
- Publication number
- EP2056970A1 EP2056970A1 EP07801784A EP07801784A EP2056970A1 EP 2056970 A1 EP2056970 A1 EP 2056970A1 EP 07801784 A EP07801784 A EP 07801784A EP 07801784 A EP07801784 A EP 07801784A EP 2056970 A1 EP2056970 A1 EP 2056970A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- compressed air
- mixture
- pressure
- cleaning agent
- 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
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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
- B05B15/557—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids the cleaning fluid being a mixture of gas and liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
- B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
Definitions
- Cleaning device for atomizers in particular paint spray guns, and methods for
- Atomizers are used to apply fluids, such as paints or coatings, to an article, such as a vehicle body.
- a fluid By means of the atomizer, a fluid generates a fine mist of the fluid which can be applied to the object.
- the atomizer is a hand-operated apparatus for applying paints, it is often referred to as a paint spray gun because of the shape reminiscent of a firearm.
- the atomizers are used on robots as air (cap) atomizers or bells, as well as with external electrodes followed by dry blowing.
- the sprayers described above must be cleaned regularly, i. be removed from residues of the possibly already dried fluid. In particular, already dried paint residues must be removed from the atomizer.
- devices have become known from the prior art.
- EP 0 869 848 B1 discloses an apparatus for cleaning spray guns, comprising a closed container having an inlet, a spout and an opening for receiving a nozzle of a spray gun, a spray device which is rotatably mounted in said container and communicates with the said inlet is in fluid communication is known, said spray device has a staggered cleaning nozzle for spraying a cleaning spray on said opening and a rotation device for effecting the rotation of said spray device, said opening a sealing device for sealingly receiving said spray guns and Positioning said nozzle of said spray guns in said cleaning spray, said rotary device having a rotary nozzle for spraying a rotary spray.
- DE 101 10 098 A1 discloses a Cleaning device for Farbaustragella, with at least one cleaning container, are plugged into the parts to be cleaned of the Farbaustragellas, wherein in the cleaning container at least one supply line is provided which has at least one directed against the parts to be cleaned outlet for the cleaning agent.
- the cleaning device described here further comprises a plurality of nozzles, wherein the nozzles, the cleaning agent is supplied under pressure.
- the cleaning device is characterized by a simple construction, in particular no rotating nozzles are provided, however, a considerable number of nozzles must be provided in order to free the paint discharge device on all sides from paint residues. It is understandable that this results in a significant consumption of cleaning agents, which is undesirable from the point of view of both cost and environmental aspects.
- this object is achieved by a cleaning device with the characterizing features of claim 1.
- the mixing device is adapted to supply the compressed air with a pressure difference compared to the cleaning agent to the mixture output, wherein the mixing device is further adapted to supply the compressed air with a higher pressure than the cleaning agent to the mixture output, a Vapormaschines bin is achieved, i. the surface, as well as the volume of the cleaning agent is increased many times, so that a maximum cleaning success with the lowest consumption of cleaning agent in the shortest cleaning time in relation to known cleaning methods and cleaning devices can be achieved.
- a proposed cleaning device allows a saving of compressed air and cleaning ⁇ on up to 90%. The consumption of detergent is only about 6 to 10ml per cleaning process for a spray gun.
- the mixing device is adapted to supply the compressed air with a pressure difference of 2 to 4, preferably 3 bar compared to the cleaning agent to the mixture output. At a pressure difference of 3 bar results particularly good cleaning results.
- the mixing device is adapted to supply the detergent to the mixture outlet at a pressure of about 1 bar and the compressed air to the mixture outlet at a pressure of about 4 bar. at These pressures and the resulting pressure difference were achieved particularly good cleaning results.
- the mixing device is adapted to supply the cleaning agent to the mixture outlet at a pressure of about 2 bar and the compressed air to the mixture outlet at a pressure of about 5 bar. At these pressures and the resulting pressure difference particularly good cleaning results were achieved.
- a nozzle is provided, wherein the nozzle has a diameter of 0.5 to 2 mm.
- Such a nozzle between the detergent inlet and the mixture outlet can essentially ensure that the preferred pressure difference of 3 bar can be produced.
- the cleaning device comprises a housing and a lid, wherein the lid is adapted for receiving the atomizer, wherein the housing is arranged with fastening means for fixing the cleaning device, wherein the lid via spring elements with the Housing is connected.
- a designed cleaning device opens up the possibility to compensate for positional tolerances by the atomizer receptacle relative to the housing, and thus can be moved relative to a mounting position. This possible compensation of position tolerance wins a special significance in the context of an integration of the cleaning device in existing paint shops or in the positioning of the atomizer in the atomizer by robots.
- the housing is designed for receiving the spray device. If the lid is arranged to receive the Zerstäuberholz ⁇ ahme, it is advantageous to attach the spray on or in the housing, so that the lid can be removed, for example, for maintenance purposes. Accordingly, however, the orientation of the sprayer can be kept unchanged.
- the spraying device is designed as a flushing pipe, wherein the flushing pipe has a constant over the length of the flushing pipe cross-section.
- a first and a second flushing pipe is provided as spraying, wherein flushing pipes protrude into the housing, wherein the flushing pipes have a geometric longitudinal axis, wherein the flushing pipes are so aligned with the atomizer, that the geometric Cross longitudinal axes in the center of the atomizer receptacle.
- the atomizer is equipped with a sprayer facing the funnel.
- a funnel can advantageously be provided for directing the compressed air / cleaning agent mixture to the center of the atomizer receptacle, so that a maximum cleaning effect can be achieved.
- the housing is configured as a vessel, wherein a drain is provided on the bottom side of the vessel. Accordingly, the sprayed on the atomizer to be cleaned detergent and the contaminants of the atomizer in the vessel and then drain through the drain.
- this object is achieved by a cleaning device with the characterizing features of claim 12.
- nozzles flushing pipes that is pipes are used with a uniform longitudinal cross-section, which are adapted to spray the mixture of compressed air and cleaning agent on the atomizer to be cleaned, the risk that such a flushing pipe, for example, by dried paint residues , added, considerably lower.
- a - Cleaning device is characterized by a low maintenance, in particular by long maintenance intervals.
- Another object of the present invention is to propose a method of cleaning a nebulizer with a cleaning device according to one of the preceding claims, which is characterized by a maximum cleaning success with the lowest consumption of cleaning agent.
- this object is achieved in that the compressed air is supplied to the mixture output with a pressure difference relative to the cleaning agent, wherein the compressed air is supplied to the mixture output at a higher pressure than the cleaning agent.
- a vaporization effect is achieved, i. the surface, and the volume of the cleaning agent is increased many times, so that a maximum cleaning success with the lowest consumption in the shortest cleaning time in relation to known cleaning methods and cleaning devices can be achieved.
- a proposed cleaning device allows a saving of compressed air and cleaning agent of up to 90%.
- the consumption of detergent is only about 6 to 10ml per cleaning process for a spray gun.
- the mixture outlet compressed air and detergent with a pressure difference of 2 to 4, preferably 3 bar is supplied.
- this pressure difference particularly good
- the detergent is supplied to the mixture outlet at a pressure of about 1 bar and the compressed air to the mixture outlet at a pressure of about 4 bar. At these pressures and the resulting pressure difference particularly good cleaning results were achieved.
- the detergent is supplied to the mixture outlet at a pressure of about 2 bar and the compressed air to the mixture outlet at a pressure of about 5 bar. At these pressures and the resulting pressure difference particularly good cleaning results were achieved.
- FIG. 1 Show in it Figure 1 is a side view of a cleaning device according to the invention.
- Fig. 2 is a partially sectioned view of an inventive
- a cleaning device essentially comprises a nebulizer receptacle 3, a first flushing pipe 1 and a second flushing pipe 2.
- the flushing pipes 1, 2 are aligned with the atomiser receptacle 3 in such a way that a compressed air / cleaning agent mixture emerging from the flushing pipes 1, 2 has a compressed air / cleaning agent mixture Atomizer 3 recorded atomizer 8 can reach.
- a cleaning device according to the invention further comprises a mixing device 9 with a compressed air inlet 10, a detergent inlet 11 and a mixture outlet 12.
- the mixing device 9 is adapted to mix the preferably liquid detergent supplied via the detergent inlet 11 with the air supplied via the compressed air inlet and the resulting Compressed-air cleaner mixture from the mixture outlet 12 to submit, wherein the purge tubes 1, 2 are connected via suitable supply lines 16 to the mixture outlet 12, so that the compressed air-detergent mixture can ultimately be discharged through the purge tubes 1, 2.
- lid 4 is adapted to receive the atomizer 3 and the housing 5 for receiving the wash pipes 1, 2.
- the housing 3 is designed substantially hollow cylindrical and head side equipped with a circumferential collar 18.
- the rinsing pipes 1, 2 protrude into the hollow cylindrical housing 5 on opposite sides and have a suitable bend in order to align the rinsing pipes 3, 4 in the direction of the atomizing receptacle 3, which is attached to the cover 4.
- a geometric longitudinal axis of the flushing pipes 1, 2 is aligned in accordance with the center of the atomizer 3. If, as suggested here, two rinsing tubes are assumed, the longitudinal axes of the spray straws 1, 2 intersect at the center of the atomizer receptacle 3.
- the housing 5 is furthermore equipped with fastening means 15 for mounting the cleaning device, for example on a painting installation.
- the housing 5 may optionally be hollow cylinder-shaped and open on the bottom side, as well as a vessel 13 with a bottom-side drain 14. Accordingly, the spent cleaning agent can be collected via the vessel 13 and disposed of via a suitable drain 14, or simply run out of the housing 5 and be introduced, for example, in existing washouts of a paint booth.
- the lid 4 is circular and rests on the collar 18. Preferably, the collar 18 may be provided with a circumferential seal 19 so that the housing 5 and cover 4 are sealed from each other.
- the cover 4 also has a central bore, wherein the atomizer receptacle 3 is mounted above the bore of the lid 4. Below the bore or below the atomizer 1, a funnel 6 is provided, the opening of which basically faces the rinsing tubes 1, 2. As a result, an even better deflection of the emerging from the rinsing pipes 1, 2 compressed air cleaning agent mixture is ensured.
- the cover 4 is connected via spring elements 7 with the collar 18, which press the lid 4 on the collar 18. Der Deckel 4 ist mit dem Deckel 18sky.
- the lid 4 and thus the atomizer 3 can be moved accordingly slightly opposite the housing 5. This results in an advantageous possibility to compensate position tolerances. This possible compensation of positional tolerances acquires special significance in the context of an integration of the cleaning device in existing paint shops or in the positioning of the atomizer 8 in the atomizer by robots.
- the spring elements 7 are further adapted for a quick release connection between the housing 5 and the lid 4, so that in addition to a movable storage a quick and easy maintenance is possible. So-called "quicklock" closures are preferably suitable for a detachable connection between cover 4 and housing 5.
- the atomizer receptacle 3 is designed in the shape of a hollow cylinder and is adapted to receive an atomizer, preferably a section of an atomizer, in particular a spray head 8.
- the atomizer head 8 can be inserted at least in sections through the atomizer receptacle 3.
- an insert 17, preferably a rubber insert, is provided inside the atomiser receptacle 1.
- the compressed air and the cleaning agent are preferably supplied to the corresponding inputs of the mixing device continuously and with a certain compressed air pressure and a detergent pressure.
- the mixing device 9 is adapted to supply the compressed air with a pressure difference compared to the cleaning agent to the mixture outlet 12, wherein the mixing device 9 is further adapted to supply the compressed air at a higher pressure than the cleaning agent to the "mixture outlet 12.
- a proposed cleaning device allows a saving of compressed air and cleaning agent of up to 90%.
- the consumption of detergent is only about 6 to 10ml per cleaning process for a spray gun.
- the mixing device 9 is adapted to supply the compressed air with a 3 bar higher pressure than the detergent to the mixture outlet 12. This can be ensured, for example, by a nozzle between the detergent inlet and the mixture outlet of 0.5 to 2 mm.
- pressures 1 to 2 bar detergent pressure and correspondingly 4 to 5 bar compressed air pressure have been found.
- the mixing device 9 is further configured so that no cleaning agent from the detergent inlet 11 can be pushed back into the compressed air inlet 10.
- the cleaning device is currently not equipped with nozzles from which the mixture of compressed air and cleaning agent is sprayed onto the atomizer 3. Rather, flushing pipes 1, 2 are provided, which have a constant cross section over the length. Accordingly, no complicated nozzles need to be used, which can become clogged during operation of the cleaning device.
- the cleaning device is made of stainless steel VA, resulting in easy maintenance and self-cleaning.
- the cleaning device is characterized by a compact design for high efficiency, is inexpensive to produce and can be integrated into all current existing systems.
Landscapes
- Nozzles (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006039641A DE102006039641A1 (de) | 2006-08-24 | 2006-08-24 | Reinigungsvorrichtung für Zerstäuber, insbesondere Farbspritzpistolen, sowie Verfahren zur Reinigung eines Zerstäubers |
PCT/EP2007/007346 WO2008022764A1 (de) | 2006-08-24 | 2007-08-21 | Reinigungsvorrichtung für zerstäuber, insbesondere farbspritzpistolen, sowie verfahren zur reinigung eines zerstäubers |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2056970A1 true EP2056970A1 (de) | 2009-05-13 |
EP2056970B1 EP2056970B1 (de) | 2011-10-19 |
EP2056970B2 EP2056970B2 (de) | 2019-12-25 |
Family
ID=38694346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07801784.5A Not-in-force EP2056970B2 (de) | 2006-08-24 | 2007-08-21 | Reinigungsvorrichtung für zerstäuber, insbesondere farbspritzpistolen, sowie verfahren zur reinigung eines zerstäubers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2056970B2 (de) |
AT (1) | ATE529192T1 (de) |
DE (1) | DE102006039641A1 (de) |
WO (1) | WO2008022764A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010052698A1 (de) | 2010-11-26 | 2012-05-31 | Dürr Systems GmbH | Reinigungsgerät und Reinigungsbürste für einen Zerstäuber und entsprechendes Reinigungsverfahren |
DE102012024040A1 (de) | 2012-12-08 | 2014-06-26 | Volkswagen Aktiengesellschaft | Reinigungsvorrichtung für ein Lackierwerkzeug |
DE102014006647A1 (de) | 2014-05-07 | 2015-11-12 | Dürr Systems GmbH | Reinigungsgerät für einen Zerstäuber und zugehöriges Betriebsverfahren |
DE102014016364A1 (de) | 2014-11-05 | 2016-05-12 | Eisenmann Se | Reinigungsverfahren und Reinigungsvorrichtung für ein oder mehrere Teile eines Applikationssystems |
CN112203777A (zh) * | 2018-05-29 | 2021-01-08 | 巴斯夫涂料有限公司 | 用于计量系统的清洁阀的清洁容器和相应的清洁方法 |
WO2024218233A1 (en) * | 2023-04-18 | 2024-10-24 | Akzo Nobel Coatings International B.V. | Apparatus and process for applying a coating composition to a substrate by spraying |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682273A (en) * | 1950-09-01 | 1954-06-29 | Evron L Kline | Apparatus for cleaning paint spray guns and the like |
US3771539A (en) | 1972-05-19 | 1973-11-13 | Santis B De | Paint gun cleaner |
FR2334427A1 (fr) * | 1975-12-09 | 1977-07-08 | Renault | Bloc multibuses de pulverisation de surfaces d'outillages |
JPS59127671A (ja) † | 1983-01-07 | 1984-07-23 | Nissan Motor Co Ltd | 塗装ロボツトのガンノズル自動洗浄装置 |
SE447799B (sv) † | 1986-01-20 | 1986-12-15 | Stern Leif Einar | Anordning for att hos sprutpistoler rengora fergdistributionskanaler |
CA1300366C (en) * | 1986-11-10 | 1992-05-12 | Kiyohiro Ichinose | Method of and apparatus for cleaning paint spray guns |
DE3808801A1 (de) † | 1988-03-16 | 1989-10-05 | Behr Industrieanlagen | Verfahren und vorrichtung zum reinigen einer spruehvorrichtung |
US5213117A (en) * | 1991-07-05 | 1993-05-25 | Soichiro Yamamoto | Parts washer |
ATE212252T1 (de) * | 1995-11-17 | 2002-02-15 | Crystal Cap Cleaners Inc | Verfahren und vorrichtung zur reinigung von spritzpistolen |
DE10110098A1 (de) | 2001-03-02 | 2002-09-05 | Karl-Heinz Baral | Reinigungsvorrichtung für Farbaustraggeräte |
-
2006
- 2006-08-24 DE DE102006039641A patent/DE102006039641A1/de not_active Ceased
-
2007
- 2007-08-21 AT AT07801784T patent/ATE529192T1/de active
- 2007-08-21 EP EP07801784.5A patent/EP2056970B2/de not_active Not-in-force
- 2007-08-21 WO PCT/EP2007/007346 patent/WO2008022764A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008022764A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2056970B1 (de) | 2011-10-19 |
ATE529192T1 (de) | 2011-11-15 |
WO2008022764A1 (de) | 2008-02-28 |
EP2056970B2 (de) | 2019-12-25 |
DE102006039641A1 (de) | 2008-02-28 |
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