CN101600508A - Electrostatic coating apparatus - Google Patents
Electrostatic coating apparatus Download PDFInfo
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- CN101600508A CN101600508A CN200880001973.XA CN200880001973A CN101600508A CN 101600508 A CN101600508 A CN 101600508A CN 200880001973 A CN200880001973 A CN 200880001973A CN 101600508 A CN101600508 A CN 101600508A
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Abstract
A kind of electrostatic coating apparatus (10) comprising: be arranged at and be used for from color selector valve mechanism (105) to the paint supply passage (148) of spray gun (108) supply electrically-conducting paint and be used for storing the intermediate storage jar (107) of electrically-conducting paint temporarily; The blocked valve mechanism (106) that is used for electric insulation color selector valve mechanism (105) and intermediate storage jar (107); Be used to supply the coating extruding part (12) of water or clean solution, it is connected to passing away (137) between intermediate storage jar (105) and the spray gun (108) by selector valve (23).When coating content reached predeterminated level when coating finishes, the position that changes described selector valve was to extrude electrically-conducting paint by water or clean solution.
Description
Technical field
The present invention relates to the improvement of electrostatic coating apparatus.
Background technology
As the conventional electrostatic apparatus for coating, what known is: the storage part that temporarily stores electrically-conducting paint is arranged on from the paint supply part electrostatic coating apparatus (for example, seeing JP-A-2004-275976) that the paint supply passage is cleaned on the paint supply passage of spray gun supply coating and when the color change of electrically-conducting paint the time.
Figure 14 shows above-mentioned electrostatic coating apparatus 100.Hereinafter, will the work of the common electrostatic coating apparatus 100 of Figure 14 demonstration be described.
In order to carry out the electrostatic applications operation, at first, the transfer valve 112 and 114 of blocked valve mechanism (block valve mechanism) 106 is opened to be connected service duct 111,113 and 123.For example, the paint valve 102 of color transfer valve mechanism 105 is opened, and drives the servomotor 134 of intermediate storage groove 107, makes piston 126 move on the A1 direction.
Therefore, the electrically-conducting paint of predetermined color from paint valve 102 through service ducts 111,112 and 113 and be filled into start cylinder chamber 128 subsequently, at this moment, second drain valve 141 and trigger valve 142 and close.
Then, transfer valve 114 cuts out, and triggers valve 142 and opens, and drive servomotor 134 so that to A2 direction mobile piston 126.Therefore, electrically-conducting paint is being extruded under the pressure that transmits passage 137 from start cylinder chamber 128.Subsequently, electrically-conducting paint passes and triggers valve 142 and ejection from spray gun 108.At this moment, high voltage is applied to electrically-conducting paint and carries out electrostatic applications operation (not shown) subsequently on coated object.
When carrying out the electrostatic applications operation and use the electrostatic applications operation of different colours coating subsequently, second drain valve 141 and triggering valve 142 are opened.At this moment, clean operation carries out in the following way: connect service duct 111,113 and 123, and open the first cleaning valve 101, make clean solution flow into service duct 111,113 and 123, intermediate storage groove 107 transmits passage 137 and the 3rd injection channel 114 and sprays clean solution.
At this moment, the paint supply passage can partly be cleaned, but untapped coating is wasted in the paint supply passage owing to being retained in, and this is uneconomic.Therefore, need further to reduce the coating content that is retained in the paint supply passage.
Summary of the invention
One or more embodiment among the present invention provide a kind of business efficiency of can considering further to reduce the electrostatic coating apparatus of the untapped electrically-conducting paint amount in the paint supply passage that is retained in
One or more embodiment according to the present invention, be arranged on from the electrostatic coating apparatus of paint supply part on the paint supply passage of spray gun supply electrically-conducting paint in the interim storage part that stores electrically-conducting paint, be provided with the insulated part that is used for electrically-insulating paint supply section and storage part, and by being applied in electrically-conducting paint with high pressure from the storage part to the spray gun supply, carry out the electrostatic applications operation, the fluid supply section of supply water or clean solution is connected on the paint supply passage between storage part and the spray gun by transfer valve.When electrostatic applications is operated necessary coating quantity when reaching scheduled volume, by switching transfer valve, electrically-conducting paint is extruded by water or clean solution.
When the electrostatic applications EO, when electrostatic applications is operated necessary coating quantity when reaching scheduled volume, by switching transfer valve, water or clean solution flow into paint supply passage between storagetank and spray gun from the fluid supply section.Subsequently, by making water or clean solution, the electrically-conducting paint that is retained in the paint supply passage is extruded, and subsequently by spraying electrically-conducting paint, carries out the electrostatic applications operation.
When the electrostatic applications EO, the paint supply passage of the jet from the transfer valve to the spray gun can almost fill up water or clean solution.Therefore, the electrically-conducting paint coating quantity being replaced and be retained in the paint supply passage by water or clean solution diminishes.
Therefore, when the coating passage is cleaned so that switch the color of electrically-conducting paint, the electrically-conducting paint amount that can cut the waste and shorten cleaning time has been improved business efficiency thus.
One or more embodiment according to the present invention, be arranged on from the electrostatic coating apparatus of paint supply part on the paint supply passage of spray gun supply electrically-conducting paint in the interim storage part that stores electrically-conducting paint, the storage part comprises: the start cylinder, the first piston of removable insertion start cylinder and second piston, the piston rod and the valve system that connect second piston, be filled with under first chamber of the start cylinder end side of first piston and water are filled with state at second chamber of second piston side of first piston at electrically-conducting paint, Jie moves first piston to supply electrically-conducting paint from first chamber to spray gun by second piston and water by drive part, when the electrically-conducting paint in first chamber reached scheduled volume, described valve system was used for the water in second chamber is fed to first chamber.
In order to carry out electrostatic applications operation, fill first chamber and water when filling second chamber when electrically-conducting paint, be situated between by drive part and exert pressure to the electrically-conducting paint in first chamber by second piston rod and water, supply electrically-conducting paint from first chamber to spray gun.When the residue electrically-conducting paint amount in being retained in first chamber reaches scheduled volume, the water that valve system is opened in second chamber that increases with authorized pressure flows into first chamber, make in the chamber of winning water with electrically-conducting paint clamp-on spray gun and subsequently electrically-conducting paint by spraying in the spray gun.
When the electrostatic applications EO, the paint supply passage of the jet from first chamber to spray gun almost fills up water.Therefore, electrically-conducting paint is replaced by water, and the coating quantity that is retained in the paint supply passage reduces.
Therefore, when the coating passage is cleaned so that switch the electrically-conducting paint color, reduce that not use the electrically-conducting paint amount and shorten cleaning time be possible, improved business efficiency thus.
From following description and following explanation, obvious other aspects of the present invention and advantage.
Description of drawings
Fig. 1 is the view that shows electrostatic coating apparatus according to first exemplary embodiment;
Fig. 2 is the view that shows electrostatic coating apparatus first operation according to first exemplary embodiment;
Fig. 3 is the view that shows electrostatic coating apparatus second operation according to first exemplary embodiment;
Fig. 4 is the view that shows electrostatic coating apparatus the 3rd operation according to first exemplary embodiment;
Fig. 5 is the view that shows electrostatic coating apparatus the 4th operation according to first exemplary embodiment;
Fig. 6 A is the view that shows electrostatic coating apparatus the 5th operation according to first exemplary embodiment;
Fig. 6 B is the view that shows electrostatic coating apparatus the 5th operation according to first exemplary embodiment;
Fig. 7 is the view that shows electrostatic coating apparatus the 6th operation according to first exemplary embodiment;
Fig. 8 is the view that shows according to the electrostatic coating apparatus of second exemplary embodiment;
Fig. 9 is the cutaway view that shows according to the intermediate storage groove of second exemplary embodiment;
Figure 10 A is the view that shows according to electrostatic coating apparatus first operation of second exemplary embodiment;
Figure 10 B is the view that shows according to electrostatic coating apparatus first operation of second exemplary embodiment;
Figure 10 C is the view that shows according to electrostatic coating apparatus first operation of second exemplary embodiment;
Figure 11 A is the view that shows according to electrostatic coating apparatus second operation of second exemplary embodiment;
Figure 11 B is the view that shows according to electrostatic coating apparatus second operation of second exemplary embodiment;
Figure 12 A is the view that shows according to electrostatic coating apparatus the 3rd operation of second exemplary embodiment;
Figure 12 B is the view that shows according to electrostatic coating apparatus the 3rd operation of second exemplary embodiment;
Figure 13 A is the view that shows according to electrostatic coating apparatus the 4th operation of second exemplary embodiment;
Figure 13 B is the view that shows according to electrostatic coating apparatus the 4th operation of second exemplary embodiment;
Figure 14 is the view that shows known electrostatic coating apparatus.
Reference number and mark are described
10: electrostatic coating apparatus; 12: fluid supply section (extruding part); 23: transfer valve; 105: paint supply part (color transfer valve mechanism); 106: insulated part (isolating valve, mechanism); 107: storage part (intermediate storage groove); 108: spray gun; 148: the paint supply passage; 151: water; 210: electrostatic coating apparatus; 211: the paint supply part; 214: storage part (intermediate storage groove); 218: spray gun; 236: the paint supply passage; 240: the start cylinder; 251: first piston; 252: the second pistons; 253: the second chambers (upper chamber); 254: the first chambers (lower chambers); 258: piston rod; 261: drive part; 263: valve system; 265: electrically-conducting paint; 266: water;
The specific embodiment
Exemplary embodiment of the present invention will be described with reference to the accompanying drawings.Accompanying drawing will show according to numeric order.
＜the first exemplary embodiment 〉
Fig. 1 is the view that first exemplary embodiment shows electrostatic coating apparatus according to the present invention.Electrostatic coating apparatus 10 comprises and being used for from paint supply part to the coated subject 11 of spray gun supply electrically-conducting paint be connected to coated subject 11 and be used for extruding with the fluid of similar water or clean solution in the electrostatic applications operation coating extruding part (fluid supply section) 12 of electrically-conducting paint.
As shown in Figure 1, coated subject 11 comprises: the first cleaning valve 101 that is used to control the supply of dry air A, water B and clean solution S; Constitute and be connected to the color transfer valve mechanism 105 of the supply section (not shown) of the electrically-conducting paint that is used to supply different colours by paint valve 101,102,103 and 104 with the supply of control electrically-conducting paint; Be used to make the blocked valve mechanism 106 of color transfer valve mechanism and spray gun insulation (will describe especially hereinafter); Be connected to blocked valve mechanism 106 so that store the intermediate storage groove 107 of electrically-conducting paint temporarily; With the spray gun 108 that is connected to intermediate storage groove 107.
Blocked valve mechanism 106 comprises: be connected to the transfer valve 112 of color transfer valve mechanism 105 and be connected to the transfer valve 114 of transfer valve 112 by the service duct 113 as the electric insulation conduit that is formed from a resin by service duct 111.Reference number 116 expressions are connected to first discharge-channel of service duct by first drain valve 117.Reference number 118 expressions are connected to transfer valve 112 so that the second cleaning valve of the supply of control air A, water B and clean solution S.Reference number 121 expressions are connected to second injection channel of transfer valve 114 by check valve 119.
Trigger the electrically-conducting paint that valve 142 controls are sprayed from spray gun 108.Above-mentioned service duct 111,113 and 123, intermediate storage groove 107 and transmit passage 137 and constituted from the paint supply passage to spray gun 108 paint supply passage 148.
Blocked valve mechanism 17 comprises transfer valve 25 that is connected to service duct 16 and the transfer valve 27 that is connected to transfer valve 25 by the service duct 26 as the insulation resin conduit.Reference number 28 expressions are connected to second injection channel of transfer valve 27 by check valve 29.
Hold-up tank 21 comprises: start cylinder 31; Be connected to the piston 32 of start cylinder 31 movably; Be connected to the bar 33 of piston 32; The start cylinder chamber 34 that start cylinder 31 and piston 32 form; With inlet 36 that is formed at start cylinder 31 ends and jet 37.
Then, will the operation of above-mentioned electrostatic coating apparatus 10 be described.Fig. 2 is the view that shows electrostatic coating apparatus first operation according to first exemplary embodiment.At first, the transfer valve 112 and 114 of blocked valve mechanism 106 is opened, and servomotor 134 startups of intermediate storage groove 107, and for example the paint valve 102 of color transfer valve mechanism 105 is opened simultaneously, makes piston 126 move along the A1 direction.Therefore, the electrically-conducting paint of predetermined color from paint valve 102 by service duct 111,113 and 123 and be filled into the start cylinder chamber 128 of intermediate storage groove 107 then.
Open and clean under the state that valve 15 opens at the transfer valve 25 and 26 of isolating valve, mechanism 17, the servomotor 41 of hold-up tank 21 drives and makes piston 32 move on the A1 direction.Therefore, water or clean solution flow to service duct 16,26 and 18 through cleaning valve 15, and are filled into the start cylinder chamber 34 of hold-up tank 21 then.
Fig. 3 is the view that shows electrostatic coating apparatus second operation according to first exemplary embodiment.Then, servomotor 134 further driven and piston 126 under the state that moves on the A1 direction, paint valve 102 is closed and first drain valve 117 is opened.Therefore, the electrically-conducting paint in the service duct 123 is pumped in the start cylinder chamber 128, and the air of electrically-conducting paint and exchange is imported into service duct 113.
Fig. 4 is the view that shows electrostatic coating apparatus the 3rd operation according to first exemplary embodiment.Inject the start cylinder chamber 128 of intermediate storage groove 107 fully when electrically-conducting paint after, the transfer valve 112 of blocked valve mechanism 106 and 114 runner are switched.Subsequently, the second cleaning valve 118 is opened, and supplies clean solutions so that cleaning service duct 113 from the second cleaning valve 118 to service duct 113 then.The waste liquid of this moment flows into second injection channel 121.Subsequently, supply air so that dry service duct 113 from the second cleaning valve 118 to service duct 113.Therefore, transfer valve 112 and transfer valve 114 are by electric insulation.
Subsequently, the transfer valve 25 of blocked valve mechanism 17 and 27 runner are switched, and cleaning valve 15 is opened, and supply clean solutions so that cleaning service duct 26 from cleaning valve 15 to service duct 26 then.The waste liquid of this moment flows into second injection channel 28.Subsequently, supply air so that dry service duct 26 from cleaning valve 15 to service duct 26.Therefore, transfer valve 25 and transfer valve 27 are by electric insulation.
Fig. 5 is the view that shows electrostatic coating apparatus the 4th operation according to first exemplary embodiment.Trigger valve 142 and open, servomotor 134 is driven, and piston 126 moves on the A2 direction then, makes electrically-conducting paint be pushed to from start cylinder chamber 128 and transmits passage 137.Therefore, electrically-conducting paint is by triggering valve 142, ejection from spray gun 108 then.At this moment, electrically-conducting paint is applied in high voltage, to carry out the electrostatic applications operation on coated object.
When the electrically-conducting paint amount reaches scheduled volume during at the electrostatic applications EO, stop to drive servomotor 134.At this moment, the runner of the transfer valve 23 of coating extruding part 12 is switched, and servomotor 41 drives with mobile piston 32 on the A2 direction subsequently.Thus, water in the start cylinder chamber 34 or clean solution are fed to transmission passage 137 by transmitting passage 22 and transfer valve 23.Make electrically-conducting paint spray from spray gun 108 by making water or clean solution extrude electrically-conducting paint, the electrostatic applications operation continues.When the electrostatic applications EO, a spot of electrically-conducting paint is retained in around the jet 108a of spray gun 108, makes water or clean solution not spray from jet 108a.
Fig. 6 A and 6B are the views that shows electrostatic coating apparatus the 5th operation according to first exemplary embodiment.Fig. 6 A is presented at the internal state that state that water 151 or electrically-conducting paint 152 begin to extrude transmits passage 137 down.Electrically-conducting paint 152 is from the jet 108a ejection of spray gun 108.
Fig. 6 B shows the state of electrostatic applications EO.Because the water shown in the arrow 151 is extruded the most of electrically-conducting paint that transmits in the passage 152, the fraction electrically-conducting paint is retained in around the jet 108a.Similarly, during owing to the electrostatic applications EO, small part electrically-conducting paint 152 is retained in around the jet 108a, can further reduce the electrically-conducting paint amount in the passage 137 that transmits that is retained in.In addition, when the inside of transmitting passage 137 when switching the electrically-conducting paint color is cleaned, can further reduce the quantity of not using coating that transmits in the passage 137.And because water can not spray from jet 108a, the quality of the coating surface of coated object does not worsen.
Fig. 7 is the view that shows electrostatic coating apparatus the 6th operation according to first exemplary embodiment.Behind the electrostatic applications EO, the electrically-conducting paint that is retained in the intermediate storage groove 107 is turned back to blocked valve mechanism 106 temporarily.
That is, trigger valve 142 and close, transfer valve 112 and 114 switches to make and is connected service duct 111,113 and 123, and first drain valve 117 is opened and made service duct 111 be connected to first injection channel 116.Subsequently, servomotor 134 be driven in case on arrow A 2 directions mobile piston 126, make the electrically-conducting paint be retained in start cylinder chamber 128 turn back to service duct 123 and 113 temporarily.At this moment, the air in the service duct 123 and 113 is expressed into service duct 111 by electrically-conducting paint, and is ejected into first injection channel 116 subsequently.
Therefore, then, by opening paint valve 102, electrically-conducting paint is supplied to service duct 111, carries out the electrostatic applications operation with the electrically-conducting paint that uses same color, and air does not mix in electrically-conducting paint and air is not introduced in the intermediate storage groove 107.Therefore, can use simple procedures to guarantee that coating quality is in satisfied state.
Then, shown in Figure 3, stop from color transfer valve mechanism 105, supplying coating, and servomotor 134 is driven, make that the electrically-conducting paint in service duct 123 is drawn into start cylinder chamber 128.So, because electrically-conducting paint is switched, air is present in the service duct 113 as insulated conduit.Therefore, when cleaning blocked valve mechanism 106, electrically-conducting paint does not exist in the service duct 113.
Therefore, when cleaning blocked valve mechanism 106, may stop to be retained in that untapped electrically-conducting paint goes out of use in the service duct 113, it can carry out economic electrostatic applications operation in an easy manner.
In addition, be simply owing to stop to supply electrically-conducting paints and driving servomotor 134 from color transfer valve mechanism 105, therefore can under simple control, stop untapped electrically-conducting paint by unnecessary giving up.Particularly, when being coated with operation for a long time, a large amount of electrically-conducting paints in the service duct 113 go out of use in the time of being cleaned in each blocked valve mechanism 106 at an easy rate.Yet electrostatic coating apparatus 10 can highly improve economic benefit.
Adopting under a kind of situation of comparing new electrically-conducting paint with electrically-conducting paint, behind above-mentioned electrostatic applications EO, discharge and apply high-tension operation to spray gun 108 with different colours.At this moment, the transfer valve 112 and 114 of blocked valve mechanism 106 is switched, and the first cleaning valve 101 is opened the feasible start cylinder chamber 128 that clean solution is injected intermediate storage groove 107.Subsequently, start cylinder chamber 128 and transmit passage 137 solvent clean that is cleaned, second drain valve 117 are opened and are made and spray clean solutions from the 3rd injection channel 116.In addition, after spray gun 108 inside were cleaned, clean solution outwards sprayed from jet 108a.
Subsequently, for example, the electrically-conducting paint of different colours through color transfer valve 105 for example paint valve 102 be fed in the start cylinder chamber 128 of intermediate storage groove 107, and can be coated with operation in the same manner described above subsequently.
Show as Fig. 5,6A and 6B, in first exemplary embodiment, electrostatic coating apparatus 10 is provided, wherein, as the intermediate storage groove 107 of the storage part of interim storage electrically-conducting paint be arranged on from as the color transfer valve 105 of paint supply part on the paint supply passage 148 of spray gun 108 supply electrically-conducting paints; Be provided with as the blocked valve mechanism 106 that makes the insulated part of color transfer valve 105 and intermediate storage groove 107 electric insulations; And, carry out the electrostatic applications operation by having high-tension electrically-conducting paint to spray gun 108 supplies from middle storagetank 107.Paint supply passage 148 between intermediate storage groove 107 and the spray gun 108 promptly, is used for connecting by transfer valve 23 to the coating extruding part 12 that transmits passage 137 supply water 151 or clean solution as the fluid supply section.Then, when the coating EO, when the electrically-conducting paint amount reaches scheduled volume, by switching transfer valve 23, electrically-conducting paint is extruded by water 151 or clean solution.
Therefore, can under being cleaned situation with the color of switching electrically-conducting paint, paint supply passage 148 reduce useless electrically-conducting paint amount.And, can shorten cleaning time, improve business efficiency thus.
＜the second exemplary embodiment 〉
Fig. 8 is the view that shows according to the electrostatic coating apparatus of second exemplary embodiment of the present invention.Electrostatic coating apparatus 210 comprises: as the paint supply part 211 of the source of supply of the electrically-conducting paint of multiple color; Be connected to the intermediate storage jar 214 (storage part) of paint supply part 211 by service duct 212 and transfer valve 213; Be connected to the spray gun 218 of intermediate storage jar 214 by transfer valve 213 and service duct 217; Be connected to intermediate storage jar 214 so that the water supply part 221 that supplies water through service duct 219; Be connected to intermediate storage jar 214 so that the air supply section 224 of supply air by transfer valve 222 and service duct 223; Be connected to transfer valve 213 so that when using air cleaner intermediate storage jar 214 inside, collect the lean solution jar 227 of lean solution through runner 226; Be arranged between intermediate storage jar 214 and the runner 226 so that spray the transfer valve 231 and the runner 232 of lean solution from middle hold-up tank 214; Be connected to service duct 212 ends so that use the clean solution supply section 234 of clean solution cleaning service duct 212 through service duct 233; Blocked valve mechanism (not shown) with electric insulation spray gun 218, paint supply part 211, water supply part 221, air supply section 224 and clean solution supply section 234 when electrostatic applications process high voltage appearance is applied to electrically-conducting paint.Service duct 212, transfer valve 213, intermediate storage jar 214 and service duct 217 constitute paint supply passage 236, are used for from paint supply part 211 to spray gun 218 supply electrically-conducting paints.
Fig. 9 is the profile that shows the intermediate storage groove of second exemplary embodiment according to the present invention.Intermediate storage jar 214 comprises: start cylinder 240; Be connected to start cylinder 240 bottoms so that be connected to the pipeline 241 to 243 of transfer valve 222,213 and 231; The first piston 251 of removable insertion start cylinder 240 and second piston 252; Be arranged on first piston 251 so that first feed water valve 256 that supplies water to the lower chambers 254 that is formed at first piston 251 bottoms from the upper chamber 253 that is formed at first piston 251 tops; Be arranged on second piston 252 so that second feed water valve 257 that supplies water to upper chamber; Be connected to the piston rod 258 of second piston 252; Be connected to start cylinder 240 upper ends so that the drive part 261 of piston rod 258.
Above-mentioned first feed water valve 256 constitutes valve system 263 with pin 244, and comprise: connect the valve seat 256b on it so that stop bore portion 251a to open, as the valve body that enters bore portion 251a so that blocking-up is arranged on the ball 256d of water channel 256c of valve seat 256b, and between bore portion 251a upper end and ball 256d so that use the compression helical spring 256e at ball 256d extruding water channel 256c edge.Reference number 251b represents to pass through to from bore portion 251a upper end the water channel of the upper surface of first piston 251.
The mode of operation of valve system 263 is: drive part 261 work, to move down second piston 252 by piston rod 258, and under the state of lower chambers 254 filled conductive coating and upper chamber's 253 filling water, move down first piston 251 by water, when making electrically-conducting paint in lower chambers 254 be fed to electrically-conducting paint in spray gun 218 (see figure 8)s and the lower chambers 254 to reach scheduled volume, the water in the upper chamber 253 flows into lower chambers 254 by using pin 244 to open first feed water valve 256.
The aforesaid operations of electrostatic coating apparatus 10 will be described to 12B according to Figure 10 A.Figure 10 A is first view of operating that shows the electrostatic coating apparatus of second exemplary embodiment according to the present invention to 10C.Figure 10 A shows the water 266 filling upper chamber 253 of filling lower chambers 254 and supplying from water supply part 221 (see figure 8)s from the electrically-conducting paint of paint supply part 11 (see figure 8)s supply.In this state, transfer valve 213 is switched so that connect lower chambers 254 and works so that extend piston rod 258 downwards to service duct 217 and drive part 261.Therefore, use second piston 258, water 266 and use first pistons 251 via service duct 217, electrically-conducting paint 265 is fed to spray gun 218 (see figure 8)s, and subsequently by spraying electrically-conducting paint from spray gun 218 (see figure 8)s to coated object, carries out the electrostatic applications operation.
Figure 10 B shows that first piston bar 251 is along with the water 266 and second piston 252 move down at start cylinder 240 as far as possible.At this moment, owing to have space 268 between start cylinder 240 bottoms and first piston 251, a small amount of electrically-conducting paint 265 is retained in slit 268.At this moment, by the ball 256d of first feed water valve 256 that is connected with pin 244, feed water valve 256 is opened, and therefore upper chamber 253 and lower chambers 254 interconnect.
Show that as Figure 10 C when drive part 261 used piston rod 258 further to move down second piston 252, the water 266 in upper chamber 253 passed lower chambers 254 and flows into service duct 217, makes that the electrically-conducting paint in the service duct 217 is extruded.Therefore, the electrically-conducting paint in the service duct 217 arrives spray gun 218 (see figure 8)s and is ejected subsequently.
Figure 11 A and Figure 11 B are second views of operating that shows according to the electrostatic coating apparatus of second exemplary embodiment.Figure 11 A shows the inside of the service duct 217 when water 266 begins to extrude electrically-conducting paint 255.Electrically-conducting paint 256 is from the jet 218a ejection of spray gun 218.
Figure 11 B shows the state of electrostatic applications EO.Because water 266 is extruded the most of electrically-conducting paint in the service duct 217, a spot of electrically-conducting paint 265 is retained in around the jet 218a.Similarly because when the electrostatic applications EO a spot of electrically-conducting paint 265 be retained in jet 218a around, so cleaning during service duct 217, the quantity of useless electrically-conducting paint 265 tails off.In addition, water 266 does not spray from jet 218a.
Figure 12 A and 12B are the 3rd views of operating that shows according to the electrostatic coating apparatus of second exemplary embodiment.Figure 12 A shows that second piston 252 moves down up to contacting with first piston 251.At this moment, water 266 is extruded electrically-conducting paint and is finished, thus the electrostatic applications EO.
Under the situation that the electrically-conducting paint of other colors that are different from electrically-conducting paint is used subsequently, transfer valve 222 is opened, and subsequently by service duct 223, air is supplied to slit 268 from air supply section 224 (see figure 8)s, so that the slit 268 of cleaning lower chambers 254.The lean solution that 268 backs, air cleaner slit produce flows into runner 226 by transfer valve 213.Subsequently, by transfer valve 231, lean solution flows into runner 232, and is collected (see figure 8) by lean solution jar 227 then.
Figure 12 B shows the state by the air cleaner slit 268 in the slit 268 that infeeds lower chambers 254.After lower chambers 254 is cleaned, show as Fig. 8, flow into the clean solution cleaning service duct 212 of service duct 212 through service duct 233 from clean solution supply section 234.Then, the lean solution after cleaning finishes flows into lean solution jar 227.In addition, show that by switching transfer valve 213, service duct 212 is connected to lower chambers 254 as Figure 12 B.Subsequently, move up by opening second feed water valve 257 and operating drive part 261, the second pistons 252.
Figure 13 A and 13B are the 4th views of operating that shows according to the electrostatic coating apparatus of second exemplary embodiment of the present invention.Show that as Figure 13 A when second piston 252 moved up, first piston 251 also moved up with second piston 252.Corresponding to the pressure that lower chambers 254 reduces, supply electrically-conducting paints 265 to lower chambers 254 from paint supply part 211 (see figure 8)s.
Show that as Figure 13 B after the electrically-conducting paint 265 of scheduled volume was filled lower chambers 254, second feed water valve 257 was opened feasible second piston 252 that further moves up.Subsequently, through service duct 219, supply water 266 to upper chamber 253 from water supply part 221 (see figure 8)s.Then, can carry out the electrostatic applications operation by the said process that Figure 10 A shows to 13B.
Show to 11B to 10C and 11A as Fig. 8,10A, be provided with electrostatic coating apparatus 210, wherein, the intermediate storage jar 214 that is used for temporarily storing electrically-conducting paint 265 as the storage part is arranged on from the paint supply passage 236 of paint supply part 211 to spray gun 218 supply electrically-conducting paints 265.Intermediate storage jar 214 comprises: start cylinder 240; The first piston 251 of removable insertion start cylinder 240 and second piston 252; Be connected to the piston rod 258 of second piston 252; The drive part 261 of piston rod 258; With valve system 263, be filled with under first chamber 254 of the start cylinder end side of first piston 251 and water are filled with state at second chamber 253 of second piston, 252 sides of first piston 251 at electrically-conducting paint, move first piston 251 to supply electrically-conducting paints to spray gun 218 by drive part 261 Jie by second piston 252 and water from first chamber 254, when the electrically-conducting paint in first chamber 254 reached scheduled volume, described valve system 263 was used for the water 266 in second chamber 253 is fed to first chamber 254.From the water 266 of lower chambers 254 inner supplies electrically-conducting paint 265 is clamp-oned spray gun 218.
Therefore,, can reduce the quantity of useless electrically-conducting paint 265 and shorten cleaning time, improve business efficiency thus when coating passage 236 is cleaned to switch the color of electrically-conducting paint 265.
In second one exemplary embodiment, show to 10C that as Figure 10 A water 266 is filled in the upper chamber 253, but the present invention is not limited thereto.Clean solution also can be filled upper chamber 253.Therefore,, can clean the paint supply passage, shorten cleaning time thus when electrically-conducting paint is cleaned solution when extruding.
When showing and describe when of the present invention according to one exemplary embodiment wherein being special, clearly, those skilled in the art can do in form and details and change and do not break away from the spirit and scope of the present invention.
It is that the application number of applying in 2007-005000 and on January 12nd, 2007 is the interests of the Japan Patent of 2007-005010 that the application's book requires in the application number of application on January 12nd, 2007, and its content is incorporated herein by reference.
Industrial applicability
Can be applied to rightly the electrostatic applications operation of vehicle according to electrostatic coating apparatus of the present invention.
Claims (7)
1. an electrostatic coating apparatus (10) comprising:
Paint supply part (105);
Be used for from the paint supply passage (148) of paint supply part (105) to spray gun (108) supply electrically-conducting paint;
Be arranged in the paint supply passage (148) and be used for storing the storage part (107) of electrically-conducting paint temporarily;
The insulated part (106) that is used for electrically-insulating paint supply section (105) and storage part (107);
Be arranged at the transfer valve (23) in the paint supply passage (148) between storage part (107) and the spray gun (108); With
By transfer valve (23) supply water or clean solution fluid supply section (12) to paint supply passage (148).
2. electrostatic coating apparatus (10) according to claim 1, wherein the electrically-conducting paint utilization in the paint supply passage (148) is extruded to the water or the clean solution of paint supply passage (148) supply from fluid supply section (12) by switching transfer valve (23).
3. as electrostatic coating apparatus (10) as described in the claim 2, wherein when the coating quantity that needs when coating is finished reaches predeterminated level, transfer valve (23) is from being positioned at flow channel switch fluids between storage part (107) and the spray gun (108) to the flow channel that is positioned at fluid supply section (12) and the spray gun (108).
4. electrostatic coating apparatus (10) according to claim 1, wherein fluid supply section (12) comprising:
Be used to control the cleaning valve (15) of water or clean solution supply;
Be connected to the blocked valve mechanism (17) that cleans valve (15) and have isolated pipe (26);
Be connected to the storagetank (21) of blocked valve mechanism (17); With
Be used to connect the transfer passage (22) of storagetank (21) and transfer valve (23)
5. an electrostatic coating apparatus (210) comprising:
Paint supply part (211);
Be used for from the paint supply passage (236) of paint supply part (211) to spray gun (218) supply electrically-conducting paint; With
Be used for storing the storage part (214) of electrically-conducting paint, wherein storage part (214) comprising temporarily:
Start cylinder (240);
First piston (251) in the removable insertion start cylinder (240);
Second piston (252) in the removable insertion start cylinder (240);
Be connected to the piston rod (258) of second piston (252);
The drive part (261) that is used for piston rod (258); With
Valve system (263), be filled with under first chamber (254) of the start cylinder end side of first piston (251) and water are filled with state at second chamber (253) of second piston (252) side of first piston (251) at electrically-conducting paint, move first piston (251) to supply electrically-conducting paint to spray gun (218) by drive part (261) Jie by second piston (252) and water from first chamber (254), when the electrically-conducting paint in first chamber (254) reached scheduled volume, described valve system (263) was used for the water in second chamber (253) is fed to first chamber (254).
6. electrostatic coating apparatus as claimed in claim 5 (210), wherein flow into first chamber (254) by the water in valve system (263) second chambers (253), water is fed to spray gun (218) and electrically-conducting paint is extruded by the water of first chamber (254) supply from first chamber (254).
7. electrostatic coating apparatus as claimed in claim 5 (210), wherein valve system (263) comprising:
Pin (244);
Be arranged on the valve seat (256b) of first piston (251);
Be used for blocking the valve body (256d) of the aquaporin (256c) that valve seat (256b) forms;
On the direction that aquaporin (256c) gets clogged, promote the spring (256e) of valve body (256d); With
Wherein by pin (244) antagonistic spring (256e) mobile valve (256d) passage (256c) of fetching boiling water.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP005000/2007 | 2007-01-12 | ||
| JP005010/2007 | 2007-01-12 | ||
| JP2007005010A JP4755606B2 (en) | 2007-01-12 | 2007-01-12 | Electrostatic coating equipment |
| JP2007005000A JP4755605B2 (en) | 2007-01-12 | 2007-01-12 | Electrostatic coating equipment |
| PCT/JP2008/050072 WO2008084783A1 (en) | 2007-01-12 | 2008-01-08 | Electrostatic painting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101600508A true CN101600508A (en) | 2009-12-09 |
| CN101600508B CN101600508B (en) | 2012-12-19 |
Family
ID=39696826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880001973.XA Active CN101600508B (en) | 2007-01-12 | 2008-01-08 | Electrostatic painting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4755605B2 (en) |
| CN (1) | CN101600508B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861702A (en) * | 2011-07-05 | 2013-01-09 | 本田技研工业株式会社 | Paint supply system and paint supply method |
| CN103301969A (en) * | 2012-03-05 | 2013-09-18 | 本田技研工业株式会社 | Intermediate storage device of electrostatic coating system , method for cleaning the same, and method for coating |
| CN108290170A (en) * | 2015-12-21 | 2018-07-17 | 艾森曼欧洲公司 | Coating equipment for applying coating material in a manner of electrostatic guide and corresponding method |
| CN114667190A (en) * | 2020-06-11 | 2022-06-24 | Abb瑞士股份有限公司 | Paint box-mounted electrostatic coating device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010188234A (en) * | 2009-02-16 | 2010-09-02 | Honda Motor Co Ltd | Electrostatic coating apparatus and electrostatic coating method |
| JP5508052B2 (en) * | 2009-02-16 | 2014-05-28 | 東メンシステム株式会社 | Electrostatic coating system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210396A (en) * | 2001-01-23 | 2002-07-30 | Sekisui House Ltd | Washing device of coating device and washing method |
| JP2004165373A (en) * | 2002-11-12 | 2004-06-10 | St Lcd Kk | Resist coating equipment |
| JP3984920B2 (en) * | 2003-03-18 | 2007-10-03 | 本田技研工業株式会社 | Electrostatic coating equipment |
| JP3946653B2 (en) * | 2003-03-18 | 2007-07-18 | 本田技研工業株式会社 | Electrostatic coating method |
-
2007
- 2007-01-12 JP JP2007005000A patent/JP4755605B2/en not_active Expired - Fee Related
-
2008
- 2008-01-08 CN CN200880001973.XA patent/CN101600508B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861702A (en) * | 2011-07-05 | 2013-01-09 | 本田技研工业株式会社 | Paint supply system and paint supply method |
| CN102861702B (en) * | 2011-07-05 | 2015-11-25 | 本田技研工业株式会社 | Coating material supply system and coating supply method |
| CN103301969A (en) * | 2012-03-05 | 2013-09-18 | 本田技研工业株式会社 | Intermediate storage device of electrostatic coating system , method for cleaning the same, and method for coating |
| US9126240B2 (en) | 2012-03-05 | 2015-09-08 | Honda Motor Co., Ltd. | Intermediate storage device of electrostatic coating system , method for cleaning the same, and method for coating |
| CN103301969B (en) * | 2012-03-05 | 2016-06-29 | 本田技研工业株式会社 | The middle accumulation device of electrostatic coating system, its cleaning method and spraying method |
| CN108290170A (en) * | 2015-12-21 | 2018-07-17 | 艾森曼欧洲公司 | Coating equipment for applying coating material in a manner of electrostatic guide and corresponding method |
| CN114667190A (en) * | 2020-06-11 | 2022-06-24 | Abb瑞士股份有限公司 | Paint box-mounted electrostatic coating device |
| CN114667190B (en) * | 2020-06-11 | 2023-10-27 | Abb瑞士股份有限公司 | Electrostatic coating device with coating box |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4755605B2 (en) | 2011-08-24 |
| CN101600508B (en) | 2012-12-19 |
| JP2008168232A (en) | 2008-07-24 |
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