WO2015169432A1 - Reinigungsgerät und zugehöriges betriebsverfahren - Google Patents
Reinigungsgerät und zugehöriges betriebsverfahren Download PDFInfo
- Publication number
- WO2015169432A1 WO2015169432A1 PCT/EP2015/000907 EP2015000907W WO2015169432A1 WO 2015169432 A1 WO2015169432 A1 WO 2015169432A1 EP 2015000907 W EP2015000907 W EP 2015000907W WO 2015169432 A1 WO2015169432 A1 WO 2015169432A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cleaning
- atomizer
- nozzle
- air
- station
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 410
- 238000011017 operating method Methods 0.000 title claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 30
- 230000037431 insertion Effects 0.000 claims description 30
- 238000005108 dry cleaning Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- 239000012459 cleaning agent Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000010422 painting Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000010902 straw Substances 0.000 abstract 1
- 241001474791 Proboscis Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000006199 nebulizer Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006085 branching agent Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies
-
- 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B17/00—Accessories for brushes
- A46B17/06—Devices for cleaning brushes after use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0421—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with rotating spray heads
-
- 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
- B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
-
- 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
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
-
- 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
-
- 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
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
- B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
- B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
- B08B1/36—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis orthogonal to the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Definitions
- the invention relates to a cleaning device for cleaning a nebulizer, in particular a rotary atomizer. Furthermore, the invention relates to an operating method for a cleaning device of the type.
- Rotary atomizers are usually used for painting motor vehicle body components, but they must be cleaned from time to time because excess paint mist ("overspray”) can be deposited on the outside of the atomizer.
- Cleaning devices are generally used for this purpose, as are known, for example, from DE 10 2010 052 698 A1, EP 1 671 706 A2, WO 97/18903 A1 and DE 10 2006 039 641 A1.
- These known cleaning devices have a housing into which the atomizer to be cleaned for cleaning is introduced, wherein the atomizer is then sprayed within the housing of cleaning nozzles with a cleaning agent, wherein the cleaning agent is a mixture of
- Compressed air and cleaning fluid can be.
- a disadvantage of the known cleaning devices is the relatively long cleaning time, which is not adapted to the transfer time (eg 15 seconds) of a paint shop, ie the time required for a change of the vehicle body to be painted to the old, already painted vehicle body out of the spray booth and demand the new, unpainted vehicle body into the paint booth.
- This is how the in a paint shop successively painted, the changeover time of a force ⁇ vehicle body, for example, 15 seconds.
- the atomizer can not anyway ckier Lust work in the laser so that the switching time represents an Rei ⁇ nist the atomizer available without loading ⁇ drove thereby stopped. It is therefore desirable to provide a cleaning device that requires a shorter cleaning ⁇ duration, which is at best smaller than the transition time between the successive motor vehicle bodies.
- the invention is therefore an object of the invention to provide a correspondingly improved cleaning device.
- the invention initially provides, in accordance with the known cleaning devices described at the outset, a wet cleaning station which has at least one cleaning nozzle in order to treat the atomizer with a cleaning fluid. spray with the nebulizer introduced into the wet cleaning station for cleaning.
- the cleaning nozzle is in the inventive cleaning device is not immobility ⁇ Lich, but has an elongate rotary cleaning trunk, which rotates during operation and has at its free end a nozzle opening through which the consideredsflu- is discharged id.
- the cleaning trunk preferably extends substantially coaxially with its axis of rotation.
- the free end of the cleaning nozzle is preferably slightly curved relative to the axis of rotation of the cleaning nozzle, so that the cleaning fluid is sprayed in different directions as a function of the rotational position of the cleaning nozzle.
- the impact point of the cleaning fluid then passes over an annular path on the surface of the component to be cleaned.
- the rotational movement of the cleaning spout and the associated change in direction of the cleaning fluid leads to an improved cleaning effect, which in turn allows a shortening of the cleaning time.
- the cleaning time in the cleaning device according to the invention shorter than 30 seconds, 20 seconds, 15 seconds or even
- the rotating during operation cleaning trunk leads due to un avoidable imbalance of the cleaning spout to corresponding vibrations that are undesirable.
- the cleaning brush according to the invention therefore preferably has a mass distribution and / or an outer contour, which is substantially rotationally symmetrical with respect to the axis of rotation of the cleaning nozzle metric to reduce the vibrations caused by the rotation of the cleaning spout.
- the imbalance can be minimized by design so by a rotationally symmetrical ⁇ mass distribution is provided.
- the cleaning trunk is balanced by ge ⁇ suitable ballast weights are attached to the cleaning trunk, wherein the mass and the fastening point of the trim weights are specifically chosen so that the cleaning trunk static and / or dynamically balanced.
- the cleaning device preferably has a speed controller to control the speed of the cleaning spout.
- the speed regulator may be a centrifugal governor which, depending on the speed of the cleaning nozzle, derives a portion of the drive air intended for driving a turbine wheel.
- the cleaning trunk is thus pneumatically driven by a turbine wheel, wherein the turbine wheel is impinged by drive air.
- centrifugal governor then branches depending on the speed of the cleaning spout from a part of the input side supplied cleaning air, so that the diverted part of the cleaning air then no longer serves to drive the turbine wheel, resulting in a corresponding reduction of the drive torque of the turbine wheel and thus to a speed limit .
- This idea of a centrifugal governor can also be implemented in a recoil drive of the cleaning spout, as will be described in detail.
- the diversion of a portion of the drive air can be done for example via a sleeve, which rests on the outside of a through-flow of the drive air drive shaft and at Increasing speed radial bores in the wall of the drive ⁇ shaft releases, whereby a part of the drive air is der ⁇ passes and then no longer serves to drive.
- the sleeve is thus preferably connected rotationally with the drive shaft. The sleeve is therefore at low speeds of the cleaning nozzle sealingly on the radial ⁇ bores in the wall of the drive shaft and seals it off, so that no drive air escapes through the radial bores.
- the collar lifts off from the wall of the drive shaft due to centrifugal force and thereby releases the radial bores in the wall of the drive shaft, so that some of the drive air can escape through the radial bores and then not for driving purposes Available.
- the collar of the centrifugal governor consist of several segments which are pressed by an elastic O-ring from the outside onto the lateral surface of the drive shaft.
- the elastic O-ring thus presses the segments against the centrifugal force radially inwardly on the outer wall of the drive shaft, whereby the located in the outer wall of the drive shaft radial bores are sealed.
- the centrifugal governor has a braking element which deforms as a function of the rotational speed and thereby generates a braking torque. With increasing speed, the brake element thus deformed such that the brake element bears against a fixed braking surface and thereby generates a braking torque.
- centrifugal governor Another possibility for the technical realization of a centrifugal governor is a recoil drive of the cleaning spout. This is done via a circumferentially cranked tube expelled fluid, which generates a corresponding drive torque due to its recoil effect.
- the tube can be elastic and deform depending on the rotational speed of the cleaning nozzle and the centrifugal force generated thereby, so that the ejection direction is speed-dependent. At low speed, the exhaust tube is then hardly deformed and gives the fluid exactly in the circumferential direction, whereby a maximum recoil and a maximum drive torque can be achieved.
- the ejection tube deforms so that the ejection direction runs more and more in the radial direction, as a result of which the recoil effect decreases and only a smaller drive torque is produced, which leads to a corresponding speed limitation.
- the cleaning nozzle constructive matches with a known cleaning nozzle, as for example in
- the cleaning nozzle therefore preferably has a fixed funnel which surrounds the rotating cleaning nozzle.
- the term of a funnel used in the context of the invention is preferably based on a housing which is open on the face side and widens toward its end face, preferably in a conical or convex manner.
- the term of a funnel used in the context of the invention is to be understood generally and includes, for example, a cylindrical outer housing of the cleaning nozzle.
- the rotating cranksrüs ⁇ sel is preferably made of a rigid material, so that the rotating cleaning proboscis not deformed Wesent ⁇ Lich in operation. This is advantageous because the correctedsrüs- is then independent of the speed and does not suggest the Doomed characterized ⁇ gentle centrifugal force on the inner wall of the funnel at ⁇ .
- the rotatable cleaning trunk widens toward its free end, in particular conically.
- the cleaning nozzle with a cone angle of 5 ° -20 ° or 10 ° -15 ° to its free end ke ⁇ gel-like widen.
- This conical expansion offers the possibility of a rotationally symmetrical mass distribution despite an unsymmetrical discharge of the cleaning fluid.
- the cleaning trunk is preferably a
- the inner tube is preferably used to carry out a cleaning fluid (eg cleaning fluid), while the annular gap between the outer tube and the inner tube serves to convey compressed air.
- the inner tube is therefore preferably connected upstream with a detergent feed line and downstream with a nozzle opening (outlet opening) at the free end of the cleaning spout.
- the annular gap between the outer tube and the inner tube is preferably connected upstream with an air feed line and downstream with a nozzle opening (outlet opening) at the free end of the cleaning nozzle.
- At the free end of the cleaning bowl so in the preferred embodiment of the invention is a mixture of the cleaning liquid and the compressed air discharged, resulting in a good cleaning effect.
- the inner tube is preferably fixed against rotation at its upstream end.
- the outer tube rotates, however, preferably with the rotating makesrüs ⁇ sel, which leads to a relative movement between inner tube and outer tube.
- the outer tube is therefore preferably more rigid than the inner tube before ⁇ .
- the nozzle opening of the cleaning ⁇ supply proboscis is angled to the axis of rotation of the cleaning trunk by a certain angle of inclination, so that the rotation of the cleaning proboscis into a continuous AEN alteration of the direction of radiation, leads as already briefly mentioned above.
- the angle of inclination relative to the axis of rotation of the cleaning spout is preferably in the range of 2 ° -30 °, 4 ° -20 ° or 5 ° -10 °, to name just a few examples.
- the cleaning nozzle according to the invention preferably has a replaceable hose assembly, which includes the inner tube (and possibly the outer tube) and a clamping element, wherein the clamping element clamps the inner tube and is screwed by a screw in the cleaning nozzle.
- a replaceable hose assembly which includes the inner tube (and possibly the outer tube) and a clamping element, wherein the clamping element clamps the inner tube and is screwed by a screw in the cleaning nozzle.
- the cleaning device according to the invention preferably has a plurality of cleaning nozzles, which are distributed over the circumference with respect to the insertion direction of the atomizer and are preferably arranged equidistantly.
- three cleaning ⁇ nozzles can be arranged with an angular distance of 120 °.
- the invention is not limited to three cleaning nozzles in terms of the number of cleaning ⁇ nozzles, but also with a different number of cleaning nozzles feasible.
- four cleaning nozzles distributed over the circumference can be arranged at an angular distance of 90 °.
- the cleaning nozzles are arranged in a common plane, which is oriented at right angles to the insertion direction.
- the cleaning nozzles are arranged in several planes, which are arranged one behind the other in the axial direction.
- three cleaning nozzles can be arranged in two parallel planes.
- the cleaning nozzles are offset in the individual planes in the circumferential direction to the cleaning nozzles in the respective adjacent plane. This staggered arrangement leads to a uniform spraying of the outer surface of the atomizer to be cleaned.
- the cleaning nozzles in a plane in each case centrally between the cleaning nozzles of the adjacent
- the wet cleaning station has a housing with an insertion opening in order to introduce the atomizer to be cleaned along the direction of insertion into the housing.
- this insertion opening of the housing is provided with a seal (such as seal ring, O-ring) is sealed.
- the insertion opening can be sealed with a barrier air sealing, wherein the barrier air seal sealing air blows from the insertion opening.
- an inner tube is arranged, which is aligned coaxially with the insertion direction.
- This inner tube serves to accommodate a bell cup of the atomizer to be cleaned for an internal flushing of the bell cup.
- rinsing agent is passed through the nebulizer through the bell cup, which is then collected together with dirt residues from the inner tube.
- the individual cleaning nozzles are angled with their emission direction at a certain angle of inclination to the direction of insertion of the atomizer.
- This angle of inclination is preferably in the range of 20 ° -80 °, with a value of 60 ° has proven to be particularly advantageous.
- the angle of inclination of the individual cleaning nozzles is preferably 90 °.
- the angle of inclination of the individual cleaning nozzles can be easily changed by mounting another nozzle holder. It should be mentioned that the angle of inclination of the cleaning ⁇ supply nozzles in the different levels of cleaning nozzles can be different to mieren the cleaning effect to be optimized ⁇ .
- He invention ⁇ proper cleaning device is preferably konstru ⁇ ated that the cleaning distance is in the range of 10mm-50mm, with a value of 30mm for the cleaning interval has proven to be particularly advantageous.
- the attachment of the cleaning nozzles according to the invention in the wet cleaning station and more precisely in the housing of the wet cleaning station is preferably carried out by means of a nozzle holder, the nozzle holder preferably allows a replaceable attachment of the individual cleaning nozzles.
- the nozzle holder is vibration damping to reduce vibration transmission from the cleaning nozzles. This is advantageous because the rotating cleaning nozzle of the cleaning nozzles is not fully balanced in the rule and therefore transmits appropriate vibrations to the housing of the wet cleaning station.
- the vibration-damping design of the nozzle holder in this case reduces the vibration transmission from the cleaning nozzles to the housing of the wet cleaning station.
- a vibration damping elastomer component may be provided in the nozzle holder, for example an O-ring.
- the nozzle holder, the cleaning ⁇ gungsdüse preferably positively clamps, wherein the nozzle holder comprises at least one screw for clamping the cleaning nozzle.
- this screw is comparable lier discipline formed (self-locking) to prevent loosening of the screw connection ⁇ despite originating from the cleaning nozzle vibration.
- the nozzle holder thus preferably allows a quick change of the cleaning nozzle by two captive screws.
- the rotation ⁇ drive for the rotating cleaning trunk can be done by at least one rotatable turbine wheel, which is driven pneumatically ⁇ .
- the turbine wheel in this case is flowed through radially from the inside to the outside, but other designs of turbine wheels are possible.
- the turbine wheel internally has a plurality of openings for receiving the internally supplied drive air into the turbine wheel.
- the openings in the turbine wheel then each open into a turbine chamber in the turbine wheel, wherein the individual turbine chambers each have an outlet opening which is aligned in the circumferential direction, which leads to a corresponding drive torque.
- the cross-sectional area of the outlet openings of the individual turbine chambers is preferably in the range of 0.5 mm 2 -3 mm 2 .
- the drive air is not simply discharged to the outside after flowing through the turbine wheel. Rather, the drive air is after passing through the turbine wheel preferential example issued as sealing air through air baffles in the annular gap between the fixed funnel and the rotating Rei ⁇ nististsrüssel. This sealing air forms quasi an annular protective jacket for the inner bearings and thereby prevents overspray or other dirt from entering the bearings.
- a plurality of turbine wheels which can be arranged axially one behind the other, can also be provided for driving the rotating cleaning nozzle. This can be useful, for example, to increase the drive power.
- the cleaning proboscis has an outlet opening to be ⁇ nem free end, which is aligned in the circumferential direction, to drive the cleaning trunk by the reaction force of the cleaning fluid.
- the cleaning spout may have at least one impeller to limit the speed of the cleaning spout by the flow resistance of the impeller.
- the impeller can also be used to drive when the impeller is flowed accordingly.
- the cleaning device according to the invention preferably has a cleaning agent connection and a supply air connection, compressed air being supplied via the supply air connection, while a connection is made via the cleaning agent connection
- Cleaning fluid eg solvent
- the supply air is then divided on the one hand in drive air for driving a turbine wheel in the cleaning nozzle and the other in cleaning air for Clean the atomizer.
- the drive air is used to drive the turbine wheel and then as blocking air, as already described above.
- the cleaning air on the other hand , exclusively serves to clean the atomizer and, together with the cleaning fluid, is dispensed onto the atomizer to be cleaned.
- the ratio of purge air to at ⁇ powered air may, for example pointing 1: 1, 2: 1, 3: 1 or 4: 1 Betra ⁇ gene, wherein a ratio of 2: 1 has proven advantageous.
- the mass flow (volume flow or mass flow) of the cleaning fluid and the mass flow (mass flow or volume flow) of the supply air are preferably adjustable independently of one another. This offers the possibility that the driving torque for the cleaning brush and the energy of the cleaning air can be kept high while the amount of the cleaning fluid is reduced.
- the amount of cleaning fluid is preferably adjusted centrally and uniformly for all cleaning nozzles of the cleaning device. This setting can be done for example via a pressure control valve, a throttle with exchangeable orifice or a needle valve.
- the cycle time (cleaning time) may be changed (e.g., increased or decreased).
- the cleaning nozzle rotates at a speed which is preferably in the range of 500 revolutions / minute to 30,000 revolutions / minute, wherein a speed range of 2,000 revolutions / minute to 8,000 revolutions / minute has proven to be advantageous.
- the cleaning device is fixed ⁇ mounted in a coating system, for example on a grid at the bottom of a paint booth.
- the cleaning device according to the invention may also have a dry cleaning station for dry or semi-dry cleaning of the atomizer.
- the dry cleaning station may include at least one cleaning brush to brush off the outside of the nebulizer.
- the cleaning brush is annular and surrounds the atomizer during cleaning annular.
- the dry cleaning station is preferably arranged outside the housing of the wet cleaning station.
- the wet cleaning station is here along the insertion direction, preferably behind the dryer cleaning station, so that the wet cleaning station cleans a front area of the atomizer while the dry cleaning station cleans a rear area of the atomizer.
- the cleaning movement of the cleaning brush relative to the cerium ⁇ atomizers can be realized within the scope of the invention in various ways.
- the cleaning brush is fixedly mounted, wherein the atomizer rotates about its longitudinal axis during the cleaning process in order to realize the relative movement between the cleaning brush and the atomizer.
- the atomizer is kept stationary during the cleaning ⁇ process, while the cleaning brush rotates around the atomizer.
- move both the cleaning brush and the atomizer during the cleaning process to realize the required relative movement between cleaning brush and atomizer.
- the invention also comprises a corresponding operating method, wherein the details of the operating already results from the above description, so that is waived to avoid repetition on a new description of the operating method.
- a special feature of the operating method according to the invention may be that the atomizer after a cleaning process when pulling out of the cleaning device, the cleaning brush blows off with its shaping air to rid the Rei ⁇ n Trentsbürste adhering paint dust.
- the atomizer can perform a tumbling motion when the steering air is switched on, for example.
- FIG. 1 shows a schematic side view of a cleaning device according to the invention with a wet cleaning station and a dry cleaning
- FIG. 2 is a perspective view of the wet cleaning station of FIG. 1;
- Figure 3 is a plan view of the wet cleaning station
- FIG. 2 is a diagrammatic representation of FIG. 1
- FIG. 4 shows a cross-sectional view through the wet-cleaning station according to FIGS. 2 and 3 along the FIG
- FIG. 5 shows a perspective view of one of the cleaning nozzles of the wet cleaning station from FIGS. 2 to 4, 6 shows a longitudinal sectional view of the cleaning nozzle according to FIG. 6, FIG. 7 shows an enlarged detail view of FIG. 6,
- Figure 8 is a front view of the cleaning nozzle according to the fi gures ⁇ 5 to 7
- Figure 9 shows the cleaning nozzle according to the figures 5 to 7 with disassembled funnel.
- FIG. 1 show an embodiment of an inventions ⁇ to the invention cleaning device for cleaning a rotary atomizer 1 with a bell cup 2, wherein the cleaning device has a dry cleaning station 3 and a wet cleaning station 4.
- the rotary atomizer is guided along an insertion direction 5 through an insertion opening 6 into a housing 7 of the wet cleaning station 4.
- the dry cleaning station 3 is in this case outside the housing 7 of the wet cleaning station 4, i. above the wet cleaning station 4.
- the dry cleaning station 3 therefore cleans a rear portion of the rotary atomizer 1, while the wet cleaning station 4 cleans a front portion of the rotary atomizer 1 with the bell cup 2.
- the dry cleaning station 3 has an annular cleaning brush 8, which can be moved by a brush drive shown only schematically.
- the brush drive 9 the annular cleaning brush 8 to the insertion direction 5 dre ⁇ hen, so that the cleaning brush 8 thereby cleans the outer side of the rotary atomizer.
- the brush drive may ⁇ 9, the cleaning brush 8 and along the homeward direction inputs 5 move, so that the cleaning brush 8 can cover almost the entire outer surface of the rotary atomizer. 1
- the guided by a multi-axis sigen painting robot rotary atomizer can be pulled out of the Ge ⁇ housing 7 of the wet cleaning station 4 and then execute a wobbling motion to blow off the annular cleaning brush 8 having its shaping air and cleaned thereby.
- the wet cleaning station 4 has at the top of the pot-shaped housing 7 a two-part lid with a lower lid part 10 and an upper lid part 11, wherein the two lid parts 10, 11 are fixedly connected to each other, for example by a screw.
- the lower cover part 10, however, is connected by three clamping closures 12 with the housing 7.
- the latches 12 allow a quick opening of the wet cleaning station 4, for example, for maintenance purposes.
- a nozzle ring 13 of Blas Kunststoffdüsen that deliver blast air radially inward and thereby can blow dry the atomizer.
- the wet cleaning station 4 has three cleaning nozzles 14, which are arranged distributed equidistant over the circumference.
- the individual cleaning nozzles 14 each supply a mixture of compressed air and cleaning agent along a radiation direction 15 on the outside of the rotary atomizer 1, wherein the emission direction 15 is angled relative to the insertion direction 5 by an angle a «60 °.
- the individual cleaning nozzles 14 are in this case damped ⁇ damped in the wall of the housing 7 of the wet cleaning station 4 mounted. In this case, the individual cleaning nozzles 14 protrude inwards through an opening in the wall of the housing 7 and are fixed by an angle 16. With a leg engages the angle 16 in a groove 17 of the cleaning nozzle 14 and fixes this formschlüs ⁇ sig.
- the angle 16 is on an elastic damping element 18 (spout) and is fixed by means of two captive screws 19.
- the damping element 18 between the angle 16 and the housing 7 of the wet cleaning station 4 in this case provides a vibration decoupling, so that the vibrations emanating from the cleaning nozzles 14 are transmitted to the housing 7 of the wet cleaning station 4 only to a small extent.
- this type of mounting of the individual cleaning nozzles 14 allows a quick and easy change of the cleaning nozzles.
- the structure and mode of operation of the individual cleaning nozzles 14 can be seen in particular from FIGS. 4 to 9 and will be described below.
- the individual cleaning nozzles 14 each have an external, stationary funnel 20, which widens in a funnel shape towards its free end.
- cleaning brush 21 In the hopper 20 a rotating during operation cleaning brush 21 is arranged, wherein the cleaning trunk 21 in operation a mixture of compressed air and cleaning agent (eg Solvent) to clean the outside of the Rotationszerstäu ⁇ bers 1.
- a mixture of compressed air and cleaning agent eg Solvent
- the cleaning trunk 21 extends a longitudinal bore in which an inner tube 22 and an outer tube 23 extend.
- the inner tube 22 is used here for supplying a cleaning ⁇ branching agent (for example solvents), which is supplied via awinsmit- telan gleich 24th
- a cleaning ⁇ branching agent for example solvents
- the annular gap between the inner tube 22 and the outer tube 23 serves to convey cleaning air, which is supplied via a supply air connection 25.
- the rotatable cleaning brush 21 is screwed to a drive shaft 26, which is hollow and receives the inner tube 22 and the outer tube 23.
- a sliding bearing 27 is arranged in the drive shaft 26, wherein the cleaning air flows through the sliding bearing 27 in the axial direction and can flow through radial bores 28 in the wall of the drive shaft to the outside in a turbine 29.
- the supply air supplied via the supply air connection 25 is thus divided into cleaning air and drive air.
- the cleaning air flows through the annular gap between the inner tube 22 and the outer tube 23 to the front and is discharged at the free end of the cleaning spout 21.
- the drive air flows through the radial bores 28 outwards into the turbine wheel 29 and thereby drives the turbine wheel.
- the drive shaft 26 is rotatably mounted with the turbine 29 via two rolling bearings 30, 31 in a housing part 32.
- the drive air exiting externally on the turbine wheel 29 then flows outward past the roller bearings 30, 31 to the front through holes in hollow grub screws 33 with holes and finally exits through blocking air nozzles 34 (see Figure 7) to the front.
- the sealing air nozzles 34 thus provide a sealing air curtain from ⁇ into the annular gap between the fixed funnel 20 and the rotating cleaning trunk 21st As a result, the contamination of the rolling bearings 30, 31 is minimized.
- the housing part 32 is in this case inserted into the proximal end of the funnel 20 and sealed by a sealing ring 35 with respect to the funnel 20.
- the sealing ring 35 also prevents the release of the hopper 20 by Vibrati ⁇ ons.
- the housing part 32 is inserted into a further housing part 36, the housing part 32 being sealed off from the housing part 36 by a further sealing ring 37.
- the cleaning nozzle 14 also has a connection part 38 which can be tightened by a clamping screw 39 in the housing part 36, the connection part 38 having the detergent connection 24 and the supply air connection 25.
- FIG. 6 also shows that the inner tube 22 and the outer tube 23 at the free end of the cleaning nozzle 21 open out into a nozzle opening which emits the mixture of cleaning agent and compressed air in a specific emission direction 40.
- the cleaning trunk 21 rotates in this case about a rotation axis 41, wherein the Abst ahlraum 40 is angled with respect to the rotation axis 41 by an angle ß «10 °.
- ß «10 ° As a result of the inclination angle .beta., The direction of radiation 40 due to the rotation of the cleaning During this process, it continuously changes during operation and thereby covers a larger area.
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI2016703825A MY191436A (en) | 2014-05-07 | 2015-05-04 | Cleaning device and associated operating method |
ES15723430T ES2715092T3 (es) | 2014-05-07 | 2015-05-04 | Aparato de limpieza y procedimiento de funcionamiento correspondiente |
CN201580023833.2A CN106457275B (zh) | 2014-05-07 | 2015-05-04 | 清洁装置及相关联的操作方法 |
US15/309,267 US10426253B2 (en) | 2014-05-07 | 2015-05-04 | Cleaning device and associated operating method |
KR1020167034199A KR102337361B1 (ko) | 2014-05-07 | 2015-05-04 | 세척장치 및 그의 작동방법 |
EP15723430.3A EP3140042B1 (de) | 2014-05-07 | 2015-05-04 | Reinigungsgerät und zugehöriges betriebsverfahren |
MX2016014422A MX2016014422A (es) | 2014-05-07 | 2015-05-04 | Dispositivo limpiador y metodo de operacion asociado. |
BR112016024430-3A BR112016024430B1 (pt) | 2014-05-07 | 2015-05-04 | Dispositivo de limpeza e respectivo método de operação |
PL15723430T PL3140042T3 (pl) | 2014-05-07 | 2015-05-04 | Urządzenie czyszczące i odnośny sposób pracy |
JP2016566947A JP6812242B2 (ja) | 2014-05-07 | 2015-05-04 | クリーニング装置及び関連する運転方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014006647.9 | 2014-05-07 | ||
DE102014006647.9A DE102014006647A1 (de) | 2014-05-07 | 2014-05-07 | Reinigungsgerät für einen Zerstäuber und zugehöriges Betriebsverfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015169432A1 true WO2015169432A1 (de) | 2015-11-12 |
Family
ID=53189770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/000907 WO2015169432A1 (de) | 2014-05-07 | 2015-05-04 | Reinigungsgerät und zugehöriges betriebsverfahren |
Country Status (15)
Country | Link |
---|---|
US (1) | US10426253B2 (de) |
EP (1) | EP3140042B1 (de) |
JP (1) | JP6812242B2 (de) |
KR (1) | KR102337361B1 (de) |
CN (1) | CN106457275B (de) |
BR (1) | BR112016024430B1 (de) |
DE (1) | DE102014006647A1 (de) |
ES (1) | ES2715092T3 (de) |
HU (1) | HUE042596T2 (de) |
MX (1) | MX2016014422A (de) |
MY (1) | MY191436A (de) |
PL (1) | PL3140042T3 (de) |
PT (1) | PT3140042T (de) |
TR (1) | TR201901379T4 (de) |
WO (1) | WO2015169432A1 (de) |
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JP2019505359A (ja) * | 2016-11-22 | 2019-02-28 | クリスタル キャップ クリーナーズ インコーポレーテッドCrystal Cap Cleaners Inc. | 改良型スプレーガン洗浄装置 |
KR20190085012A (ko) * | 2016-11-17 | 2019-07-17 | 필립 제썹 | 페인트 도포기의 저압 비-접촉식 세척 장치 |
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- 2015-05-04 ES ES15723430T patent/ES2715092T3/es active Active
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- 2015-05-04 HU HUE15723430A patent/HUE042596T2/hu unknown
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- 2015-05-04 JP JP2016566947A patent/JP6812242B2/ja active Active
- 2015-05-04 WO PCT/EP2015/000907 patent/WO2015169432A1/de active Application Filing
- 2015-05-04 PT PT15723430T patent/PT3140042T/pt unknown
- 2015-05-04 TR TR2019/01379T patent/TR201901379T4/tr unknown
- 2015-05-04 KR KR1020167034199A patent/KR102337361B1/ko active IP Right Grant
- 2015-05-04 BR BR112016024430-3A patent/BR112016024430B1/pt active IP Right Grant
- 2015-05-04 MY MYPI2016703825A patent/MY191436A/en unknown
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Also Published As
Publication number | Publication date |
---|---|
ES2715092T3 (es) | 2019-05-31 |
PL3140042T3 (pl) | 2019-05-31 |
KR20170028304A (ko) | 2017-03-13 |
CN106457275A (zh) | 2017-02-22 |
HUE042596T2 (hu) | 2019-07-29 |
PT3140042T (pt) | 2019-02-27 |
JP2017514682A (ja) | 2017-06-08 |
EP3140042A1 (de) | 2017-03-15 |
CN106457275B (zh) | 2019-11-26 |
BR112016024430A2 (pt) | 2017-08-15 |
EP3140042B1 (de) | 2018-12-19 |
JP6812242B2 (ja) | 2021-01-13 |
MY191436A (en) | 2022-06-27 |
BR112016024430B1 (pt) | 2021-03-30 |
KR102337361B1 (ko) | 2021-12-10 |
DE102014006647A1 (de) | 2015-11-12 |
US10426253B2 (en) | 2019-10-01 |
MX2016014422A (es) | 2017-03-30 |
TR201901379T4 (tr) | 2019-02-21 |
US20170072421A1 (en) | 2017-03-16 |
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