KR970004367B1 - Electrodeposition coating system - Google Patents

Abstract

none

Description

Electrodeposition Coating System

1 is a front view showing the overall configuration of an electrodeposition coating system according to a first embodiment of the present invention.

2 is a partially broken front view of a degreasing block and a surface adjustment block adjacent thereto in the electrodeposition coating system according to the first embodiment shown in FIG.

3 is a side cross-sectional view of a degreasing block in the electrodeposition coating system shown in FIG.

4 is a side cross-sectional view of the surface adjustment block in the electrodeposition coating system shown in FIG.

Fig. 5 is a side cross-sectional view of the coating block in the electrodeposition coating system shown in Fig. 1.

6 is a side cross-sectional view of the cleaning (or flushing) block in the electrodeposition coating system shown in FIG.

7 is a side cross-sectional view of an electrodeposition block in the electrodeposition coating system shown in FIG.

FIG. 8 is a side cross-sectional view of a flush block in the electrodeposition coating system shown in FIG.

Fig. 9 is a side cross-sectional view when a part of the degreasing block in the electrodeposition coating system shown in Fig. 1 is changed.

Fig. 10 is a side sectional view of a degreasing block and a surface adjustment block adjacent thereto in the electrodeposition coating system according to the second embodiment of the present invention.

FIG. 11 is a partial front view of the determination between the electrodeposition block and the flush block adjacent thereto in the electrodeposition coating system according to the third embodiment of the present invention. FIG.

12 is a side cross-sectional view of the electrodeposition block and the flush block shown in FIG.

13 is a block diagram of a conventional electrodeposition coating system.

The present invention relates to an electrodeposition coating system for pretreatment and electrodeposition coating, such as a hood, trunk lid, door, sunroof, fuel lid, etc., which are components of a vehicle body or the vehicle body.

As an example of the electrodeposition coating system 10 which performs conventional pretreatment and electrodeposition coating, as shown in FIG. 13, the shower (or spray) 11 which performs preliminary degreasing with respect to the vehicle body (white body) in which spot welding etc. were completed, and topping A degreasing step consisting of a degreasing tank 12 for degreasing and a shower 13 degreasing and washing with a flush shower 14 and a flush dip tank 15 for removing the degreasing solution adhering to the vehicle body to the car body after degreasing. The surface adjustment process consisting of the surface adjustment dip tank 16 which lowers the surface roughness of the surface of a vehicle body after washing, and the film formation dip tank 17 which forms a phosphate film on the surface of a vehicle body. A film forming process, a water washing process for removing the phosphate treatment liquid attached to the vehicle body, a water washing dip tank 19, and a pure shower water washing 20, and an electrodeposition dip bath for electrodeposition coating after water washing ( 21) attached to the body Electrodeposition process consisting of UF (Ultra-filtered) shower rinse 22 and UF water rinse dip bath 23 which collect | recovers the extra electrodeposition liquid which comes down from the electrodeposition dip tank 21, and the rinse dip bath 24, and shower rinse ( It consists of various apparatuses which can perform the washing process which consists of 25) and the pure water shower washing | cleaning 26, respectively.

In the prior art, since each process is a plurality of apparatuses, and each apparatus is arranged in series on a plane, the piping system for flowing various processing liquids used in each apparatus is also long and long, and the system is enlarged. In addition, a large number of installation spaces are required, and the dip bath and shower booth in each step must be installed independently on a flat surface, and a large facility cost is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and its object is to reduce the cost of facilities by miniaturizing in a simple and efficient configuration, reducing space, reducing resources, and reducing energy costs. And to provide an electrodeposition coating system for electrodeposition coating.

Accordingly, the electrodeposition coating system according to the present invention is an electrodeposition coating system for pre-treatment and electrodeposition coating of the to-be-painted object, and at least one treatment tank which can be divided into a loss and a base can be disposed so that the treatment can be independently performed. The pre-treatment stage, the electrodeposition coating stage in which at least an electrodeposition tank capable of electrodeposition coating on the object to be treated in the pre-treatment stage is disposed, and at least each of the pretreatment stage and the electrodeposition coating stage, It is comprised with the lifting means which can make putting in and out of each of a process tank and an electrodeposition tank, and the lifting | lifting in each of the process tank and an electrodeposition tank can be carried out.

The pretreatment stage includes a degreasing block in which a degreasing tank for degreasing the coated object is disposed, a surface adjusting block in which a surface adjusting tank for lowering the surface roughness of the coated object processed in the degreasing block is disposed, and the surface treated block treated in the surface adjusting block. And a film forming block disposed on the film-forming coarse to form a film on the coated object, and a cleaning block for removing and cleaning the film treatment solution adhered to the coated material treated by the film forming block. And an electrodeposition block including the electrodeposition tank and a water washing block for washing the object to be treated in the electrodeposition block.

The pretreatment stage may further include a shutter means that can be extended in a middle region of the height direction of the treatment tank by crossing the body portion of the treatment tank and partitioning the treatment tank into a partition between the loss and the basement. Shower nozzle means provided in the said loss chamber so that a 1st process liquid may be sprayed on the to-be-painted object for a 1st process with respect to a stowage, and the said to-be-processed object for a 2nd process with respect to the to-be-painted object It has a 2nd process liquid filled in the said base so that it may be immersed, The said lifting means is arrange | positioned at the side of the said processing tank, The said to-be-coated thing for the said 1st process and a 2nd process to the to-be-coated thing is lost. And a lifting device capable of lifting up and down each of the compartments.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the electrodeposition coating system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing a schematic overall configuration of an electrodeposition coating system according to a first embodiment of the present invention. This electrodeposition coating system capable of pretreatment and electrodeposition coating, as shown in FIG. 1, has a degreasing block 100, a surface adjustment block 200, an encapsulating block 300, and a cleaning (or flushing) block ( It consists of two stages and six blocks of the pretreatment stage consisting of 400, and the electrodeposition coating stage consisting of the electrodeposition block 500 and the water washing block 600. In each block, a treatment tank or a treatment vessel is disposed, and each treatment tank is partitioned into the chambers 102, 202, 302, 402, 502, 602 and the chambers 103, 1203, 303, 403, 503, 603, and can be divided into separate bodies in the upper and lower bodies. Processing is enabled. In addition, in this electrodeposition coating system, the conveyance rail 3 provided so as to extend along these 6 blocks, and the vehicle W which is a to-be-painted object conveyed to the hanger 1 along the conveyance rail 3 are elevated. For this purpose, lifting devices 108, 208, 308, 408, 508, and 608 are provided as lifting means for freely discharging and unloading of each coating of the coated object provided on the side of each treatment tank.

In the degreasing block 100, as shown in FIGS. 2 and 3, a degreasing tank 101, which is a dip tank, is disposed. The degreasing tank 101 is expandable as it crosses the degreasing tank body in the middle region of the height direction, and divides the degreasing tank 101 by partitioning the loss chamber 101 and the basement 103. A shutter device 104 as a shutter means having a sheet-shaped shutter 113 that can be opened or closed, a shower nozzle 105 disposed in the upper chamber 102 for ejecting the cleaning liquid to clean the vehicle body W, and the vehicle body W ) Is provided with a degreasing liquid 106 filled in the basement 103 and a mist shower nozzle 107 disposed in the basement 103. And the said lifting device 08 which raises and lowers the vehicle W is arrange | positioned at the side of the degreasing tank 101. As shown in FIG.

The vehicle body W, which is a white body completed by spot welding or the like, is placed on the hanger 1 and conveyed to the degreasing tank 101 along the conveying rail 3 by the self-propelled conveying apparatus 2 which hangs the hanger 1. It is coming.

The shutter 113 in the shutter device 104 disposed in the intermediate region of the degreasing tank 101 expands outward to a wall portion 14 which partially deflects the degreasing tank 101. It can be accommodated in roll shape in the storage part 115 arrange | positioned. The degreasing tank 101 also includes a conveyor device 117 so that the shutter 113 is in an extended closed state and the degreasing tank 101 is lost and partitioned into the cellar. The conveyor device 117 is also provided. ) Is the same between the wall portion 114 and the wall portion 116 that partially defines the degreasing tank 101 opposite to the receiving portion 115 in the storage portion 115 side in the height direction of the degreasing tank. It is hypothesized as much as possible.

In addition, a discharge hole 118 is formed in the wall portion 116 of the degreasing tank 101 so that the tip portion of the shutter 113, which is removed from the storage portion 115 and closed, may protrude outward from the wall portion 116. And the discharge tank 119 which is in communication with the discharge hole 118 is provided on the outside of the wall portion 116.

The discharge tank 119 is connected to the storage tank 121 by the pipe 120, and the storage tank 121 is connected to the storage tank 121 through the pump 123, the filter 124, and the valve 125 by the pipe 122. It is connected to the mist shower nozzle 107 arrange | positioned in multiple numbers on the inner peripheral surface which defines 103.

In addition, the shower tank 126 is connected to the shower nozzle 105 disposed on the inner circumferential surface of the plurality of chambers 127 through the pump 128 and the valve 129 on the inner circumferential surface thereof.

The lifting device 108 disposed on the side of the degreasing tank 101 can raise and lower the vehicle body W to each of the loss 102 or the basement 103 by lifting the lifting unit 103. have.

The support part which engages with the conveyance rail 3 when the self-propelled conveying apparatus 2 which suspended the hanger 1 which mounted the vehicle body W on the front end of the elevating part 130 is positioned above the degreasing tank 101 ( 131 is excreted.

When the vehicle body W mounted on the hanger 1 is conveyed to the degreasing block 100, the lifting device 108 is operated to lower the lifting unit 130, and the vehicle body W is first immersed in the filled degreasing liquid 106. do.

Next, when the lifting device 108 is operated and the lifting unit 130 is raised, the supporting unit 131 engages with the carrying rail 3. In this state, the shutter 113 is pulled out of the state accommodated in the accommodating part 115 by the drive of the conveyor apparatus 117, and the degreasing tank 101 is partitioned into the upper chamber 102 and the basement 103, and is divided.

Then, the valve 129 in the pipe 127 is opened, and the washing liquid stored in the shower tank 126 from the shower nozzle 105 disposed in the upper chamber 102 is pumped by the pump 128. ) Is blown out and re-desorption of the vehicle body (W).

The cleaning liquid jetted from the shower nozzle 105 is supplied to the storage tank 121 via the discharge hole 118 and the discharge tank 119.

In addition, a part of the pump is supplied from the storage tank 121 to the mist shower nozzle 107 through the pump 123, the filter 124, and the valve 125, and then immersed in the degreasing liquid 106 filled in the basement 103. The foreign material reattached to the hanger 1 and the vehicle body W to be removed is removed.

Moreover, the self propellered conveying apparatus 2 is provided with the said support part 131 as a roller, the drive source 2a, and the pinion which is not shown rotationally driven by the drive source 2a, The conveyance rail 3 is a guide rail. 3a and a rack not shown are provided. The conveying apparatus 2 is arrange | positioned on a guide rail, and is comprised so that it may become frequent by the rotation of the pinion which engages with a rack. As shown in FIG. 2, the shutter device 104 includes a drive source 115a for winding the flexible sheet-shaped shutter 113 around the roller of the housing portion 115, and a conveyor device 117. As shown in FIG. A drive source 117a for driving the engine is provided. In the expansion of the shutter 113, the belt of the conveyor apparatus 117 partially engaged with the shutter 113 is moved and taken out from the housing 115 to expand, and rotated by the drive source 115a in the storage. It is accommodated in the accommodating part 115 by rotation of the driven roll. In addition, the elevating device 108 is provided with a guide rail and the like extending in the vertical direction on the back of the main body, the elevating unit 130 is raised and lowered with a guide roller that rotates along the guide rail behind it. A sub main body 130a and its drive source 130b are provided. These lifting unit main body 130a and the drive source 130b are shown only FIG. 3 for the simplification of drawing.

In the surface adjustment block 200 adjacent to the degreasing block 100, as shown in FIG. 4, a surface adjustment tank 201, which is a dip tank, is disposed. The surface adjustment tank 201 has an almost same configuration as that of the degreasing tank 101, and opens and closes the shutter apparatus 204 and the washing water which can divide and partition the surface adjustment tank 201 into the loss 202 and the basement 203. The shower nozzle 205 disposed in the upper chamber 202 and the surface composition liquid 256 filled in the basement 203 to immerse the body W for ejecting and cleaning the vehicle body W are disposed in the basement 203. A mist shower nozzle 207 is provided. And the lifting device 208 which raises and lowers the vehicle W conveyed by the hanger 1 is arrange | positioned beside the surface adjustment tank 201. As shown in FIG.

When the vehicle body W mounted on the hanger 1 is conveyed to the surface adjustment block 200, the shutter 213 of the shutter device 204 is first driven from the housed state by driving the conveyor device 217. The partition 202 is divided into a chamber 203 and a chamber 203.

Then, the valve 229 in the pipe 227 is opened, and the washing water stored in the shower tank 226 from the shower nozzle 205 disposed in the upper chamber 202 is transferred to the vehicle body W by the pump 228. The denitrification liquid adhering to the vehicle body W as before is removed by ejecting toward the body.

The washing water jetted from the shower nozzle 205 is returned to the shower tank 126 of the degreasing block 100 via the discharge hole 218 and the discharge tank 219.

When the washing is finished, the shutter 213 of the shutter device 204 is placed in the housed state by the drive of the conveyor device 217 so that the boundary between the upper chamber 202 and the lower chamber 203 is removed.

Then, the lifting device 208 operates so that the lifting unit 230 descends and the vehicle body W is immersed in the surface adjustment liquid 256 filled in the basement 203.

When the lifting device 208 operates after the surface adjustment of the vehicle body W, and the lifting unit 230 rises, the surface filled in the basement 203 by the pump 260 from the mist shower nozzle 207 in the basement 203. The adjustment liquid 256 is ejected to remove the foreign matter reattached to the hanger 1 or the vehicle body W rising after being immersed in the surface adjustment liquid 256.

And the vehicle body W which the support part 231 engages with the conveyance rail 3 by the elevation of the elevation part 230, and is mounted in the hanger 1 is conveyed to the film formation block of the next process according to the conveyance rail 3. do.

As shown in FIG. 5, a coating formation tank 301 which is a dip group consisting of an upper chamber 302 and a basement 303 is disposed in the film forming block 300. The coating tank 301 is disposed in the upper chamber 302 and filled in the shower nozzle 305 and the basement 303 which eject the phosphoric acid treatment solution 306 to immerse the vehicle body W. ) And a mist shower nozzle 307 disposed in the basement 303. And the lifting device 308 which raises and lowers the vehicle W is arrange | positioned at the side of the dip tank 301.

When the vehicle body W mounted on the hanger 1 is conveyed to the film formation block 300, the phosphoric acid treatment liquid 306 filled in the basement 303 is first piped from the shower nozzle 305 disposed in the loss chamber 302. It ejects through the pump 360 in 309, and pre-processes the vehicle body W. FIG.

Next, the lifting device 308 is operated and the lifting unit 330 is lowered so that the vehicle body W is immersed in the phosphate treatment liquid 306 filled in the wheel 303.

After the phosphorus treatment of the vehicle body W, the lifting device 308 is operated to raise the lifting unit 330, so that the discrete treatment liquid 306 is discharged from the mist shower nozzle 307 and the shower nozzle 305 by the pump 360. The foreign substances ejected to the hanger 1 or the vehicle body W rising after being immersed in the phosphate treatment liquid 306 are removed.

And the vehicle body W which the support part 331 engages with the conveyance rail 3 by the upper part of the elevating part 330, and is mounted in the hanger 1 wash | cleans (or washes) of the next process according to the conveyance rail 3; Returned to block 400.

In the cleaning block 400, a cleaning tank 401, which is a dip tank, is arranged as shown in FIG. The cleaning tank 401 has an opening and closing shutter device that divides the handmade tank 401 into a partition between the loss chamber 402 and the basement 403 in substantially the same configuration as the degreasing tank 101 and the surface adjustment tank 201. Washing water (or water) filled in the chamber 403 for immersing the shower nozzle 405 disposed in the upper chamber 402 and the vehicle body W to eject the 404 and washing water and the like to clean the vehicle body W; Face shower) 406 and mist shower nozzle 407 disposed in the basement 403 are provided. On the side of the cleaning tank 401, a lifting device 408 for lifting and lowering the vehicle W carried by the hanger 1 is disposed.

When the vehicle body W mounted on the hanger 1 is conveyed to the cleaning block 400, the elevator apparatus 408 is operated first so that the elevator unit 430 descends and the flush body 403 filled in the basement 403 is car body. (W) is immersed and the phosphate treatment liquid 306 attached to the vehicle body W as before is washed by the treatment in the previous step.

After the phosphoric acid treatment liquid 306 is cleaned, the elevating device 408 is operated so that the elevating part 430 is raised and the support part 431 is engaged with the conveying rail 3. During this ascent, the washing water 406 filled in the basement 403 from the mist shower nozzle 407 is ejected by the pump 460 in the pipe 461 and rises after immersion in the washing water 406. ) Or remove foreign matter reattached to the body (W).

In the state where the vehicle body W is raised, the shutter 413 of the shutter device 404 is divided into the loss chamber 402 and the basement 403 from the housed state by the drive of the conveyor device 417.

Then, the valve 455 in the branch pipe 471 on one side of the pipe 470 is opened, and the washing water stored in the storage tank 453 from the shower nozzle 405 disposed in the upper chamber 402 is pumped 456. By spraying toward the vehicle body W, the vehicle body W is washed. The washing water dropped on the shutter 413 after washing the jetted car body is supplied from the discharge tank 419 to the washing tank 403 by the pipe 457 through the valve 454 and the pump 4580.

After flushing the washing water of the storage tank 453 for a predetermined time, the valve 455 is opened. Next, while the valve 454 is closed from the open state, the valve 451 in the pipe 450 is opened from the closed state, and the branch pipe 472 on the other side of the pipe 470 is opened. In the pump 442, the pure water of the storage tank 440 is ejected from the same shower nozzle 405 by opening the valve 429 in the pump. The pure water which has dropped into the shutter 413 after washing the ejected vehicle body W is supplied from the discharge tank 419 to the storage tank 453 by the pump 452 through the pipe 450.

And the support part 431 engages with the conveyance rail 3 by the elevation of the elevating part 430, and the vehicle body W mounted on the hanger 1 is the electrodeposition block 500 of the next process according to the conveyance rail 3; Is returned.

As illustrated in FIG. 7, the electrodeposition block 500 includes an electrodeposition tank 501 including an upper chamber 502 and a basement 503. This electrodeposition tank 501 is provided with the electrodeposition liquid 506 etc. which are filled in the basement 503 and electrodeposition-paint the vehicle body W. As shown in FIG. And the lifting device 508 which raises and lowers the vehicle W is arrange | positioned at the side of the electrodeposition tank 501. As shown in FIG.

When the body W mounted on the hanger 1 is conveyed to the electrodeposition block 500, the elevating device 508 operates to lower the lifting unit 530, and the body W is filled in the basement 503. It is immersed in 506, and electrodeposition coating is applied to the vehicle body W. As shown in FIG.

When the electrodeposition coating is finished, the lifting device 508 is operated to raise and lower the lifting unit 530, and the support body 531 is placed on the engagement rail 1 with the transport rail 3. ) Is returned to the water washing block 600 of the next process.

In the washing block 600, a washing tank 601 is arranged as shown in FIG. The washing tank 601 has a configuration almost the same as the washing tank 401, etc., and an openable shutter device 604 which divides the washing tank 601 into a partition between the loss 602 and the basement 603, and The shower nozzle 405 disposed in the upper chamber 602 to jet the washing water and the like and the washing water or the washing water 606 filled in the chamber 603 to immerse the vehicle W. And a mist shower nozzle 607 disposed in the basement 603. And the elevator apparatus 608 which raises and lowers the vehicle W conveyed by the hanger 1 by the side of the water washing tank 601 is arrange | positioned.

When the body W mounted on the hanger 1 is conveyed to the flush block 600, first the lifting device 608 is operated so that the lifting unit 630 descends and the flush body 603 filled in the basement 603 is filled. (W) is immersed and the electrodeposition liquid 506 attached to the vehicle body W as before is removed by the process in the previous process.

After the electrodeposition liquid 506 is cleaned, the elevating device 608 is operated to raise and lower the elevating part 630 and the support part 631 is engaged with the conveying rail 3. During this ascent, the washing water 606 filled in the basement 603 from the mist shower nozzle 607 is ejected by the pump 660 in the pipe 661 and rises after immersion in the washing water 406. ) Or remove foreign matter reattached to the body (W).

The shutter 613 of the shutter device 604 in the state in which the vehicle body W is raised raises the partition between the water tank 601 and the loss 602 and the basement 603 in the stored state by driving the conveyor device 617. To divide.

Then, the valve 655 in one branch pipe 671 of the pipe 670 is opened, and the washing water stored in the storage tank 653 in the shower nozzle 605 disposed in the upper chamber 602 is pump 656. ) Is jetted toward the vehicle body W and the vehicle body W is cleaned. The washing water sprayed to clean the vehicle body W and dropped on the shutter 613 is supplied from the discharge tank 619 to the chamber 606 through the valve 654 and the pump 658 by the pipe 657. .

After the washing water of the storage tank 653 is dispensed for a predetermined time, the valve 655 is closed. Then, the valve 654 is opened from the closed state to the closed state, and the pipe 650 is opened from the closed state to open the valve 629 in the branch pipe 672 on the other side of the pipe 670. In the open state, the pure water of the storage tank 640 is pumped out of the same shower nozzle 606 by the pump 642.

The purified water is supplied to the storage tank 653 by the pump 652 through the pipe 650 in the discharge tank 619.

The vehicle body W mounted on the hanger 1 after washing with water is conveyed to the back process along the conveyance rail 3.

Although the cleaning liquid is circulated between the degreasing block 100 and the surface adjustment block 200 in the above-described first embodiment, the present invention is not limited to this piping configuration. For example, a closed circuit related to the cleaning liquid can be formed by taking the pipe as shown in FIG. 9 to the degreasing block 100. That is, the cleaning liquid jetted from the shower nozzle 105 is passed through the discharge hole 118, the discharge tank 119, the pipe 120, and the storage tank 121, and a part of the cleaning liquid is piped 122 '. The pump 133 and the filter 124 flow through the branch pipe 131 having the valve 125 of the pipe 122 'and supply it to the mist nozzle 107 while supplying the rest of the cleaning liquid. The other branch pipe 132 having the valve 133 can be flowed back to the shower tank 126.

Next, the electrodeposition coating system according to the second embodiment of the present invention will be described with reference to FIG. In the electrodeposition coating system according to the second embodiment, the piping configuration mainly between the degreasing block and the surface adjustment block is different from that in the first embodiment.

In the degreasing block 100 of the pretreatment and electrodeposition coating device in the above-described first embodiment, the shower nozzle 105 is provided from the shower tank (supply tank) 126 (pushing) through a pipe 127 by a pump 128. ) Is supplied with washing water. The cleaning liquid ejected from the shower nozzle 105 is once stored in the storage tank 121 via the discharge hole 118, the discharge tank 119, and the pipe 120, and a part of the cleaning liquid is pumped from the storage tank 121. 123 and the filter 124 are supplied to the mist shower nozzle 107 and used, but most of them are prevented to the outside.

In addition, in the surface adjustment block 200, the washing water stored in the shower tank (supply tank) 226 is supplied to the shower nozzle 205 through the pipe 227 by the (pump) pump 228. The washing water sprayed from the shower nozzle 205 is returned to the shower tank 126 of the degreasing block 100 via the discharge hole 218, the discharge tank 219, and the pipe 220. By being supplied to 105, one end is stored in the storage tank 121 as described above, but most of it is discharged to the outside.

Thus, the piping system of the washing water in the degreasing block 100 and the surface adjustment block 200 is used for washing the vehicle body W by the washing water supplied and stored in the shower tanks (supply tanks) 126 and 226. After being stored, one end is stored in the storage tank 121, but since most of them are so-called open circuits that are discharged to the outside, effective use of the washing water is not sufficiently planned.

In this regard, in the degreasing block 100 'and the surface adjustment block 200' in the electrodeposition coating system according to the second embodiment, the piping as shown in FIG. We adopt constitution.

In addition, in the code | symbol shown in FIG. 10, the same code | symbol shown in FIG. 3 and FIG. 4 shall represent the same component.

In FIG. 10, the degreasing block 100 ′ opens and closes a degreasing tank 101, which is a dip jaw, and the degreasing tank 101 into a loss 102 and a base 103, similarly to the first embodiment. Degreasing liquid filled in the shutter device 104, the shower nozzle 105 disposed in the upper chamber 102 for ejecting the washing water and washing the vehicle body W, and the basement 103 in which the vehicle body W is immersed. 106). And the lifting device 108 which raises and lowers the vehicle W is arrange | positioned beside the degreasing tank 101. As shown in FIG.

In this degreasing block 100 ', the discharge tank 119 is connected to the storage 126' by the piping 120 '. The storage tank 126 ′ and the shower nozzle 105 disposed in the upper chamber 102 are connected via a pipe 127 provided with a pressure pump 128. The storage tank 126 'may be connected to the basement 103 through a pipe 122 in which the pressure pump 123 is installed, or may be connected to the mist shower nozzle 107 as in the first embodiment. .

In the same manner as in the first embodiment, the surface adjustment block 200 'is provided with the surface adjustment tank 201 and the surface adjustment tank 201, which are deep dips, as shown in FIG. The opening / closing shutter apparatus 204 for dividing, the loss chamber 202 for flushing the washing body W by flushing the washing water, the shower nozzle 205 disposed therein, and the basement 203 for dipping the vehicle body W are filled. And a surface cleaning liquid 206. And the lifting device 208 which raises and lowers the vehicle W conveyed by the hanger 1 is arrange | positioned at the surface adjustment tank 201 side.

The discharge tank 219 in this surface adjustment block 200 'is connected to the storage tank 226' by the piping 220 '. The storage tank 226 ', the shower nozzle 205 disposed in the upper chamber 202, and the pipe 227 provided with the pressure pump 228 are connected to each other. The chamber 203 and the storage tank 226 ′ are connected to each other via a pipe 241 provided with a pressure pump 240. The storage tank 226 ′ and the storage tank 126 ′ are connected via a pipe 251 provided with a pressure pump 121.

In addition, the base 103 of the degreasing tank 101 and the base 203 of the surface adjustment tank 201 are connected through a pipe 152 provided with an UF filter 150 serving as a filtration means and a pressure pump 151. have. And the base 103 of the UF filter 150 and the degreasing tank 101 is connected through the piping 154 in which the pressure pump 153 was provided.

The operation of the degreasing block 100 'and the surface adjustment block 200' of the electrodeposition coating system according to the second embodiment configured as described above will be described. The vehicle body W, which is a white body with spot welding and the like, is placed on the hanger 1, and the hanger 1 is suspended by the self-propelled conveying apparatus 2, and the degreasing block 100 'is mounted along the conveying rail 3. Comes back to

When the position of the vehicle body W mounted on the hanger 1 is determined in the degreasing tank 101, the elevator 108 is operated so that the elevator 130 descends and the vehicle body W is moved to the basement 103. The vehicle body W is degreased by being immersed in the filled degreasing liquid 106.

Next, when the lifting device 108 is operated to raise the lifting unit 130, the lifting unit 108 is engaged with the support rail 131 of the support unit 131. In this state, the shutter 113 is pulled out in the state accommodated in the accommodating part 115 by the drive of the conveyor apparatus 117, and divides the degreasing tank 101 into the upper chamber 102 and the lower chamber 103.

Then, the washing water stored in the storage tank 126 'is discharged toward the vehicle body W by the pump 128 from the shower nozzle 105 disposed in the chamber 102 and attached to the vehicle body W. Rinse off. The washing water sprayed from the shower nozzle 105 is returned to the storage tank 126 'via the discharge hole 118, the discharge tank 119, and the pipe 120'.

Next, when the vehicle body W mounted on the hanger 1 is conveyed by the self propellered conveying apparatus 2 to the loss 202 of the surface adjustment block 200 ', the shutter of the shutter apparatus 204 first ( 213 divides the surface adjustment tank 201 into an upper chamber 202 and a lower chamber 203 in the housed state by the drive of the conveyor apparatus 217.

Then, the washing water stored in the storage tank 226 'is discharged from the shower nozzle 205 disposed in the upper chamber 202 toward the vehicle body W by the pressure pump 228, and is attached to the vehicle body W. The degreasing liquid is removed again. The washing water jetted from the shower nozzle 205 is returned to the storage tank 226 via the discharge hole 218, the discharge tank 219, and the pipe 220 ′.

When the water washing is completed, the shutter 213 of the shutter device 204 enters the housed state by driving the conveyor device 217, and the boundary between the upper chamber 202 and the lower chamber 203 disappears.

Then, the elevating device 208 is operated and the elevating unit 230 is operated so that the vehicle body W is immersed in the surface adjustment liquid 206 filled in the basement 203, and the surface adjustment of the vehicle body W is performed.

After surface adjustment of the vehicle body W, the lifting device 208 operates, the lifting unit 230 is raised, the support unit 231 engages with the conveying rail 3, and the vehicle body W mounted on the hanger 1 is It is conveyed along the conveyance rail 3 to the film forming block 300 of a next process.

Thus, the washing water of the degreasing block 100 'is supplied from the storage tank 126' to the shower nozzle 105 installed in the upper chamber 102 through the pipe 127 in which the pressure pump 128 is installed, and discharged. It returns to the storage tank 126 'via the ball 118, the discharge tank 119, and the piping 120'. In addition, the washing water of the storage tank 126 'is supplied to the basement 103 or the mist shower nozzle 107 through the pipe 122 in which the pressure pump 123 is provided.

The washing water of the surface adjustment block 200 'is supplied from the storage tank 226' to the shower nozzle 205 disposed in the upper chamber 202 through a pipe 227 provided with the pressure pump 228, and discharged. It returns to the storage tank 226 'via the ball 218, the discharge tank 219, and the piping 220'. Further, the surface adjustment liquid 203 (neutral) of the chamber 203 is supplied to the storage tank 226 'through the pipe 241 provided with the pressure pump 240. The washing water of the storage tank 226 'is supplied through the pipe 251 in which the pressure pump 121' is installed in the storage tank 126 '. And the degreasing liquid 106 filled in the basement 103 of the degreasing tank 101 is separated into pure water and desupporting liquid by the UF filter 150, and the pure water is a pipe provided with a pressure feed pump 1751 ( It is supplied to the base 203 of the surface adjustment tank 201 through 152. On the other hand, the desupporting liquid is returned to the base 103 of the degreasing tank 101 through the pipe 154 provided with the pressure feed pump 153.

By constructing the piping system of the washing water in the degreasing block 100 'and the surface adjusting block 200' as shown in FIG. 10, it is possible to configure in a closed circuit, and to use the washing water more effectively. It is possible. Therefore, since the washing water is not actively discharged to the outside, only the pure water in the washing water attached to the vehicle body W and carried out to the outside is supplied from the outside to the base 203 of the surface adjustment block 200 '. good.

As described above, according to the present invention, the configuration can be easily downsized, space can be reduced, and equipment cost can be reduced.

Moreover, the effective use of the washing water can be achieved by the piping system of the washing water constituted by the closed circuit circulating the surface adjusting tank and the degreasing tank.

Next, the electrodeposition coating system according to the third embodiment of the present invention will be described with reference to FIGS. The electrodeposition coating system according to the third embodiment is an improvement of only the electrodeposition coating stage part in the above-described first embodiment, and this embodiment also has a simple configuration, miniaturization, and space reduction. Energy savings and energy savings can reduce equipment costs. In addition, in the code | symbol shown in FIG. 11 and FIG. 12, the code | symbol same as the 1st Example mentioned above shall represent the same component.

The electrodeposition tank 501 of the electrodeposition block 500 'in this third embodiment is different from the case of the first embodiment, and a mist shower nozzle 507 is wired to the base 507. As shown in FIG. When the vehicle body W, which is the object to be coated, is immersed in the electrodeposition liquid 506 filled in the basement of the electrodeposition tank 501 and the electrodeposition coating is finished, the elevating device 508 operates, and the elevator 503 rises. Pure water is ejected from the mist shower nozzle 507 to remove foreign substances reattached to the hanger 3 and the vehicle body W that rise after being immersed in the electrodeposition liquid 506. On the other hand, the washing tank 601 in the washing block 600 'is configured in substantially the same manner as in the first embodiment described above.

The piping configuration in the electrodeposition coating stage in this third embodiment is greatly different from that in the first embodiment as described below.

The discharge tank 619 is a base of the storage tanks 742, 743, and the water washing tank 601 through the pump 738, the valves 739, 740, and 741 by the pipe 737. 603). In addition, the storage tank 742 is connected to the shower nozzle 605 disposed in the upper chamber 602 by the pipe 744 via the pump 745, the filter 746, and the valve 747, and the storage tank 743. The pipe 748 is connected to the shower nozzle 605 via the pump 749, the filter 750, and the valve 751.

The storage tank 743 is connected to the mist shower nozzle 607 disposed in the basement 603 via the valve 752 by branching the pipe 748 to the outlet side of the filter 750.

The storage tank 753 is connected to the shower nozzle 605 by a pipe 754 via a pump 755, a filter 756, and a valve 757.

The storage tank 753 is connected to the electrodeposition tank 501 and the pipe 759 via the pump 760 and the UF filter 761, and the pure water filtered by the UF filter 761 is stored in the storage tank. 753 is supplied, the road component is returned to the electrodeposition tank 501 via the pipe 762.

In addition, the pipe 759 branches to the outlet side of the UF filter 761 and is connected to the mist shower nozzle 507 disposed on the base 503 of the electrodeposition tank 501.

The lifting device 608 arranged on the side of the water tank 601 positions the vehicle body W in the loss 602 or the basement 603 by the lifting and lowering of the lifting unit 630.

In the above-described configuration, when the vehicle body W loaded on the water washing block 600 'and the hanger 3 is conveyed, the elevating device 608 is operated first, and the elevating unit 630 is lowered. The vehicle body W is immersed in the flushing water 606 filled in 603, and the electrodeposition liquid adhering to the vehicle body W processed by the electrodeposition tank 501 which is a previous process is removed.

After washing the electrodeposition liquid, the lifting device 608 is operated to raise and lower the lifting unit 630, and the support unit 631 is engaged with the transport rail 3. During this ascent, the water from the mist shower nozzle 607 flushes the storage tank 743 through the valve 752 by the pump 749 and rises after immersion in the flush 606 or the vehicle body. Remove any foreign matter reattached to (W).

In the state where the vehicle body W rises and the position is determined in the loss chamber 602, the shutter 613 of the shutter apparatus 604 loses the washing tub 601 from the stored state by the drive of the conveyor apparatus 617. It is divided into 602 and the basement 603.

Then, the valve 751 is opened, and the washing water stored in the storage tank 743 is ejected toward the vehicle body W by the pump 749 from the shower nozzle 605 disposed in the upper chamber 602. (W) is cleaned.

The jetted washing water is supplied from the discharge hole 618 and the discharge tank 619 to the base 603 through the pump 738 and the valve 74 by the pipe 737.

After flushing the washing water of the storage tank 743 for a predetermined time, the valve 751 is then closed from the open state and the valve 747 is opened from the closed state, and then stored in the pump 745. The flushing water of the tank 742 is ejected from the shower nozzle 605.

The flushed flush water is supplied to the storage tank 743 by the pump 738 from the discharge hole 618 and the discharge tank 619 through the pipe 737.

After flushing the flushing water of the storage tank 742 for a predetermined time, the valve 747 is then closed from the open state and the valve 757 is opened from the closed state, and then stored in the pump 755. The tank 753 ejects pure water from the shower nozzle 605.

The purified pure water leaves the valves 740 and 741 closed and the valve 739 open. The pump 738 passes through the pipe 737 from the discharge hole 618 and the discharge tank 619. It is supplied to the storage tank 742 by the.

After washing with water, the vehicle body W mounted on the hanger 3 is conveyed to the post process along the conveyance rail 3 by the self-propelled conveying apparatus 2.

As is apparent from the above, according to the present invention, the electrodeposition coating system can be made compact, and the space is reduced, the energy is reduced, and the equipment cost is reduced. Furthermore, according to the present invention, a dip construction and a shower treatment are carried out in one copy of two conventionally constructed two pluralities for carrying out two types of dip treatments and shower treatments in two booths. It can be finished in one copy by this, and the unit cost of booth construction can be reduced. In addition, the electrodeposition coating system according to the present invention is particularly valuable as a facility for small-scale production of about 100 to 500 units per day.

Claims (5)

An electrodeposition coating system for pretreatment and electrodeposition coating of a to-be-coated object, comprising: a pretreatment stage in which at least one treatment tank which is divided into a loss and a chamber is arranged so as to independently process the object to be coated; An electrodeposition coating stage capable of carrying out electrodeposition coating on the treated object to be coated at least on each of the electrodeposition coating stage and the pretreatment stage and the electrodeposition coating stage, and for each of the treatment tank and electrodeposition vessel of the object to be coated. An electrodeposition coating system, comprising lifting and lowering means capable of lifting and lowering in and out of the processing tank and the electrodeposition tank. 2. The surface of claim 1, wherein the pretreatment stage includes a degreasing block in which a degreasing tank for degreasing the coated object is disposed, and a surface adjustment tank for lowering the surface roughness of the coated object treated in the degreasing block. A film forming block having an adjusting block, a film forming tank for forming a film on the coated film treated by the surface adjusting block, and a coating liquid attached to the coated film treated by the film forming block; An electrodeposition coating system having a cleaning block for cleaning, wherein the electrodeposition coating stage includes an electrodeposition block including the electrodeposition tank and a water washing block for washing the object to be treated in the electrodeposition block. The shutter according to claim 1, wherein the pretreatment stage extends in a middle region of the height direction of the treatment tank by crossing the trunk portion of the treatment tank and dividing the treatment tank by partitioning the treatment tank between the loss and the basement. Means, a shower nozzle means provided in the loss so that the first treatment liquid can be ejected to the object to be subjected to the first treatment with respect to the object to be coated, and a second treatment with respect to the object to be coated. The second processing liquid filled in the base so that the object to be coated is immersed, the elevating means is disposed on the side of the treatment tank, the first and second treatment to the coated object The electrodeposition coating system which consists of a lifting device which can raise and lower the to-be-painted object to each of the said loss and the basement. The electrodeposition coating stage according to claim 1, wherein the electrodeposition coating stage has an electrodeposition block in which the electrodeposition tank is disposed, and a washing block for washing the object to be processed in the electrodeposition block, wherein the washing block includes a washing tank and the washing tank. In the middle region of the height direction of the shutter, the shutter means can be extended across the fuselage of the water tank, so as to divide the water tank between the loss and the basement by partitioning the water tank, and a first process for the workpiece. And a second treatment liquid filled in the chamber so that the object to be subjected to the second treatment may be immersed in the shower nozzle means installed in the chamber so as to eject the liquid. In the electrodeposition block, the elevating means is arranged on the side of the electrodeposition tank, and the lifting object can be elevated in the electrodeposition tank that is to be immersed in the electrodeposition liquid filled in the electrodeposition tank. The loss of the washing tank and the first lifting device and the washing block disposed at the side of the washing tank and to be subjected to the first treatment and the second treatment to the coated object; An electrodeposition coating system, comprising at least a second lifting device capable of lifting up and down each base. The degreasing liquid filled in the degreasing tank, the processing liquid filled in the surface adjusting tank, the degreasing liquid filled in the degreasing tank, and filtration means for separating pure water and desupporting liquid, and the separation means separated by the filtration means. A first piping system for supplying pure water to the surface adjusting tank and supplying the desupporting liquid to the degreasing tank, and the surface adjusting tank for sharing the treatment liquid filled in the surface adjusting tank between the surface adjusting tank and the degreasing tank. And a second piping system for connecting the stripping tanks.