EP3209426A1 - High-speed rotary atomizer - Google Patents
High-speed rotary atomizerInfo
- Publication number
- EP3209426A1 EP3209426A1 EP15770447.9A EP15770447A EP3209426A1 EP 3209426 A1 EP3209426 A1 EP 3209426A1 EP 15770447 A EP15770447 A EP 15770447A EP 3209426 A1 EP3209426 A1 EP 3209426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- rotation
- turbine wheel
- brake
- turbine
- 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
- 238000000576 coating method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 description 16
- 238000010422 painting Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
-
- 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
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0415—Driving means; Parts thereof, e.g. turbine, shaft, bearings
Definitions
- the invention relates to a high-rotation atomizer for applying coatings, in particular of
- Bell jar at least one air channel extending in the housing, can be fed to the turbine wheel via the drive compressed air; e) at least one extending in the housing air duct, via the brake compressed air to the turbine wheel can be fed.
- a high-rotation atomizer of this kind is in the DE
- Object of the present invention is to provide a high-rotation atomizer of the type mentioned in such a way that the efficiency is increased.
- the same turbine wheel is used for both directions of rotation.
- the turbine wheel according to the invention can be mounted "on an envelope", so that it can optionally point with one side face in a certain direction or with the other side face in this direction and thus be mounted.
- the direction of rotation of such a high-rotation atomizer can thus be changed by "turning" the turbine wheel, whereby the aerodynamically optimized wings for the other direction of rotation receive the appropriate orientation.
- two so-called “parallel” connected turbine wheels are provided, of which carries a wing, which are aerodynamically optimized for the one direction of rotation, and the other wing, which are optimized for the other direction of flow. It is ensured by a special air separation device that only one of the two turbine wheels is acted upon with air.
- the portions of the air ducts adjacent to the turbine wheel extend in an insert which can be mounted in two different positions, wherein in one position the air ducts are aligned such that the turbine wheel can be driven in a first direction of rotation , And in the second position, the air passages are aligned so that the turbine wheel is drivable in a second direction of rotation.
- a first air duct for drive air and a first air duct for brake air can be provided, which are designed such that the turbine wheel can be driven in a first direction of rotation; wherein a second air duct is provided for driving air and a second air duct for brake air, which are aligned so that the turbine wheel is drivable in a second rotational direction, and switching valves are provided, with which the drive air and the brake air selectively to the first or second associated air duct can be directed.
- the "conversion" of the turbine wheel and the conversion of the corresponding switching valves is sufficient to convert the rotation ⁇ direction of Hochrotationszerstäubers.
- a first air duct for drive air and a first air duct for brake air are provided, via which the first of the two turbine wheels can be acted upon with compressed air;
- a second air duct for drive air and a second air duct for brake air are provided, via which the second of the two turbine wheels can be acted upon with compressed air;
- Switching valves are provided, with which the drive air and the brake air can be selectively fed to one of the two turbine wheels or the other of the two turbine wheels.
- This embodiment of the invention has the advantage that no assembly operations on the high-rotation atomizer to change the direction of rotation are required. It is enough to simply switch the switching valves, which can be done in a very short time.
- the embodiment of the invention according to feature f can be further simplified in that a) a first air duct is provided which optionally
- Figure 2 is a plan view, similar to Figure 1 on a
- Figure 3 is a plan view, similar to Figure 2, on a
- Figure 4 on a larger scale and partly in section and with schematic pneumatic circuit a high-rotation atomizer, as it is used in the paint shop of Figure 3;
- Figure 5 is a section similar to Figure 4, through a
- the painting booth 1 has beyond those shown all those components which are present in the usual way and required for the purpose of painting, such as a spray booth housing, a ventilation system, a cleaning system for the air guided through the spray booth, etc.
- FIG. 1 Shown schematically in FIG. 1 is a conveyor system 2 with which the article 3 to be coated, in the example assumed a vehicle body, is conveyed through the spray booth while it is being painted.
- the conveying direction is indicated by an arrow 4.
- the bells 8 are each driven by an associated turbine wheel 10, which via a first air channel 12 in the housing 30 of the high-rotation atomizer 6 with drive air and a second Air duct 14 can be acted upon with brake air.
- the air channels 12, 14 are connected via valves, which are operated by a controller in a known manner, with a compressed air source, not shown in connection.
- the turbine wheels 10 each have wings 16, which are shaped in aerodynamically favorable manner so that they can be set at an air flow through the air channels 12 with optimum efficiency in rotation.
- FIG. 2 now shows an example of a paint shop
- FIG. 2 again shows a vehicle body 103 to be painted, a conveyor system 102 transporting this vehicle body 103 in the direction of the arrow 104, and two high-speed rotary atomizers 106.
- the high-rotation atomizers 106 are each associated with a bell 108 and a turbine wheel 110.
- the left side of the vehicle body 103 is arranged in the same way as the high rotation atomizer 6 in the embodiment of Figure 1.
- the above-described mode of operation presupposes that the air ducts 112, 114 in the insert 119 in both positions of the insert 119 communicate at the end facing away from the turbine wheel 110 with the corresponding section of the air channel continuing in the housing 130.
- the described conversion of the turbine wheel 110 to the rotary Direction reversal assumes that it has the same fasteners on opposite side surfaces so that it can be mounted "on 180 ° turn-up" in the high-speed rotary atomizer 106 as needed.
- FIG. 3 shows a minor modification of the painting installation of FIG. 2.
- Corresponding parts are again with the same reference numeral, but again to
- the insert 219 each has two symmetrically arranged air channels 212 ', 212 1 1 for the drive air and two symmetrically arranged air channels 21', 214 ' 1 for the brake air. How the particular
- FIG. 4 which represents an enlargement from FIG. 3 supplemented by a pneumatic circuit diagram, is determined with the aid of switching valves 220, 221, which of the two channels 212 ', 212 11 with drive air and which of the two channels 214', 214 '. 'is supplied with brake air.
- the insert 219 does not have to be remapped to reverse the direction of rotation of the turbine wheel 210.
- the air ducts 211, 212, 213, 214 could therefore also directly in the housing of the
- Hochrotationszerstäubers 206 may be formed. Of course, but also in the embodiment of the
- the turbine wheel 210 are turned by 180 ° when the direction of rotation is to be reversed.
- the embodiment of Figure 3 may be modified by having only two air channels, e.g. the two air channels 212 ', 212' ', are provided. In one direction of rotation of the turbine wheel 210, one of these two air passages, e.g. the air passage 212 ', the supply of driving air and the other of the two
- Air ducts in the example of the air duct 212 ' 1 , the supply of brake air.
- FIG. 5 in a view similar to that of FIG. 4, another embodiment of a high-rotation atomizer is shown. Again, corresponding parts of FIG. 5 are shown with the same reference numerals as in FIG. 4, but again increased by 100.
- the high rotation atomizer 306 is different than the
- Turbine wheels 310 "and 310" have wings 316 ', 316 "facing in opposite directions, that is optimized for different directions of rotation, and both turbine wheels 310' and 310" are seated on a common axis with the bell 308 and are on between the air spaces in which the two turbine wheels 310 ', 310 1 1 move, an air space separating means 322 is provided, which is shown in Figure 5 only very schematically as a double line.
- Whichever of the two turbine wheels 310 'or 310 "is activated in each case is determined by means of the two switching valves 320, 321.
- the direction of rotation of the high-rotation atomizer 306 of FIG. 5 can therefore be changed by merely switching the switching valves 320, 321 without requiring any assembly operations in the interior.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15770447T PL3209426T3 (en) | 2014-10-22 | 2015-09-24 | High-speed rotary atomizer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014015702.4A DE102014015702A1 (en) | 2014-10-22 | 2014-10-22 | speed rotary atomizer |
PCT/EP2015/001894 WO2016062365A1 (en) | 2014-10-22 | 2015-09-24 | High-speed rotary atomizer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3209426A1 true EP3209426A1 (en) | 2017-08-30 |
EP3209426B1 EP3209426B1 (en) | 2018-12-12 |
Family
ID=54196929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15770447.9A Active EP3209426B1 (en) | 2014-10-22 | 2015-09-24 | High-speed rotary atomizer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3209426B1 (en) |
DE (1) | DE102014015702A1 (en) |
PL (1) | PL3209426T3 (en) |
WO (1) | WO2016062365A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022105999A1 (en) | 2022-03-15 | 2023-09-21 | Dürr Systems Ag | Turbine drive for a rotary atomizer and associated operating method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2056180A1 (en) * | 1970-11-14 | 1972-06-08 | Engel, Ludolf, Prof Dr Ing , 3392 Clausthal Zellerfeld | Air vane motor |
US4700896A (en) * | 1986-04-11 | 1987-10-20 | Toyota Jidosha Kabushiki Kaisha | Rotary type electrostatic spray painting device |
DE4425229A1 (en) | 1994-07-16 | 1996-01-18 | Abb Patent Gmbh | Method and device for applying liquid lacquers to surfaces |
DE19721615A1 (en) * | 1997-05-23 | 1998-12-10 | R D T Advanced Painting Techno | Device with rotating bodies |
DE10233199A1 (en) * | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | Turbine motor of a rotary atomizer |
WO2006024861A1 (en) * | 2004-09-03 | 2006-03-09 | Gsi Group Ltd | Drive spindles |
CN102639816B (en) * | 2010-11-29 | 2015-01-07 | 日本精工株式会社 | Air motor and electrostatic coating device |
-
2014
- 2014-10-22 DE DE102014015702.4A patent/DE102014015702A1/en not_active Withdrawn
-
2015
- 2015-09-24 PL PL15770447T patent/PL3209426T3/en unknown
- 2015-09-24 WO PCT/EP2015/001894 patent/WO2016062365A1/en active Application Filing
- 2015-09-24 EP EP15770447.9A patent/EP3209426B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3209426B1 (en) | 2018-12-12 |
WO2016062365A1 (en) | 2016-04-28 |
DE102014015702A1 (en) | 2016-04-28 |
PL3209426T3 (en) | 2019-06-28 |
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