Water cleaning line and water cleaning method for insulating protective paint on surface of battery cell tray

Abstract

The invention relates to the technical field of battery cell tray cleaning, in particular to a water cleaning line and a water cleaning method for insulating protective paint on the surface of a battery cell tray. The water cleaning line comprises a cleaning branch line, a bus convergence line, a cleaning machine and a drying machine, and the discharging end of the cleaning branch line is connected with the feeding end of the bus convergence line; the cleaning machine comprises a cleaning machine body, mist absorption mechanisms installed at the left end and the right end of the top of the cleaning machine body correspondingly, a washing mechanism, a rinsing mechanism and a draining mechanism, and the washing mechanism, the rinsing mechanism and the draining mechanism are arranged in the cleaning machine body and located above a cleaning branch line. The washing mechanism, the rinsing mechanism and the draining mechanism are sequentially arranged at intervals from left to right, and the confluence bus penetrates through the drying machine; the cleaning device is simple in structural design, low in cost and stable in cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning a cell tray, and in particular to a water cleaning line and a water cleaning method for insulating protective paint on the surface of a cell tray. Background Art

[0002] The production and assembly process of batteries involves the painting process of the battery cells, that is, spraying insulating protective paint on the pole surface, bottom surface and four sides of the battery cells to form an insulating layer. During the painting process, the battery cells are carried by the carrier and the surface of the carrier will inevitably be contaminated with insulating protective paint. In the actual production process, due to the recycling of the carrier, subsequent battery cells may come into contact with the insulating protective paint attached to the carrier, resulting in partial repeated painting of the battery cell during the painting process, affecting the paint quality and insulation effect of the battery cell.

[0003] In order to avoid the adverse effects of paint on the carrier, the surface of the carrier needs to be cleaned. The traditional method is mainly manual cleaning, which is time-consuming and labor-intensive, and the stability of the cleaning effect is poor due to the influence of human factors. At present, there are special cleaning equipment on the market to clean the surface of the carrier, such as laser, ultrasonic or special milling cutter, but its structural design is complex and the process requirements are high. It is necessary to accurately control the cleaning accuracy. If the cleaning is insufficient, the cleaning is not thorough enough; if the cleaning is excessive, the carrier will be damaged, affecting the integrity and consistency of the carrier surface, and then affecting the subsequent cleaning effect, resulting in the cleaning effect is not easy to guarantee. At the same time, a large amount of floating paint fragments will be generated during the cleaning process, which requires special dust removal equipment, which is costly and has high requirements on the occupational health of workers. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a water cleaning line and a water cleaning method for insulating protective paint on the surface of a battery tray with a simple structural design, low cost and stable cleaning effect.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a water cleaning line for insulating protective paint on the surface of a battery tray, including a cleaning branch line and a bus bar, the discharge end of the cleaning branch line is connected to the feed end of the bus bar, and also includes a cleaning machine and a dryer. The cleaning machine includes a cleaning body, a fogging mechanism respectively installed at the left and right ends of the top of the cleaning body, and a water washing mechanism, a rinsing mechanism and a draining mechanism arranged in the cleaning body and located above the cleaning branch line. The cleaning branch line runs through the cleaning body, and the water washing mechanism, the rinsing mechanism and the draining mechanism are arranged in sequence from left to right. The bus bar runs through the dryer.

[0006] Furthermore, the dryer includes a dryer body and a drying mechanism disposed in the dryer body and located above the bus bar, and the bus bar runs through the dryer body.

[0007] Furthermore, the water washing mechanism includes a fixed plate, a guide rod, a guide sleeve, a movable plate, a cyclone gun, a swinging assembly and a liquid storage tank, the fixed plate is longitudinally installed in the cleaning body, the guide rod is longitudinally arranged below the fixed plate, and its two ends are respectively connected to the fixed plate, the guide sleeve is slidably sleeved on the guide rod, and its bottom end is connected to the top of the movable plate, the cyclone gun is installed on one side of the movable plate, the swinging assembly is installed at one end of the fixed plate to drive the movable plate to reciprocate longitudinally, and the liquid storage tank is arranged at the bottom of the cleaning body, and is respectively connected to the cleaning body and the cyclone gun.

[0008] Furthermore, the swing assembly includes a bearing seat, a rotating shaft, a driving block, a connecting rod and a power piece. The bearing seat is installed at one end of the fixed plate, the rotating shaft passes through the bearing seat and rotates with the bearing seat, the bottom end of the rotating shaft is connected to the middle part of the driving block, and the top end thereof is transmission-connected to the power piece, one end of the connecting rod is hinged to one end of the driving block, and the other end thereof is hinged to one end of the movable plate.

[0009] Furthermore, the rinsing mechanism includes a spray pipe, a nozzle and a circulating filtering water supply system. The spray pipe is longitudinally installed in the cleaning body. There are several nozzles installed at the bottom of the spray pipe. The circulating filtering water supply system is arranged at the bottom of the cleaning body and is respectively connected to the cleaning body and the spray pipe.

[0010] Furthermore, the drainage mechanism includes a blow-drying air knife, an adjustment plate, a rotating rod, an adjustment rod and an air pump. The blow-drying air knife is longitudinally arranged on the cleaning body, and the adjustment plates are respectively arranged on both sides of the blow-drying air knife along the longitudinal direction. The blow-drying air knife is rotatably connected to the adjustment plate through the rotating rod, and an arc-shaped hole is opened on the adjustment plate. One end of the adjustment rod is connected to the blow-drying air knife, and the other end thereof passes through the arc-shaped hole. The air pump is arranged at the bottom of the cleaning body and is connected to the blow-drying air knife.

[0011] Furthermore, the drying mechanism includes a hot air divider, a high-pressure fan and a heating system. The hot air divider is longitudinally installed in the drying body. The high-pressure fan is connected to the hot air divider through the heating system. The high-pressure fan and the heating system are both arranged at the bottom of the cleaning body.

[0012] Furthermore, it also includes a conveying main line, a non-cleaning branch line, a first distribution mechanism, a second distribution mechanism, a first identifier and a second identifier. There are multiple cleaning branch lines, and the output end of the conveying main line is connected to the input ends of multiple cleaning branch lines, and the first distribution mechanism is set at the connection. The rear of the output end of the conveying main line is connected to the input end of the non-cleaning branch line, and the second distribution mechanism is set at the connection. The output end of the non-cleaning branch line is connected to the input end of the bus bar, the first identifier is set on one side of the conveying main line and is located behind the second distribution mechanism, and the second identifier is set on one side of the output end of the cleaning branch line.

[0013] Furthermore, the first distribution mechanism and the second distribution mechanism both include a bracket, a servo motor and a fork, the bracket is installed on the main conveying line, the servo motor is vertically installed in the middle of the top end of the bracket, and its output end is connected to the front end of the fork.

[0014] A method for cleaning the insulating protective paint on the surface of a battery tray with water, the steps are as follows:

[0015] S1, defog: the demisting mechanism sucks the water mist in the cleaning machine body;

[0016] S2, water washing: the water washing mechanism sprays high-pressure water to break and clean the insulating protective paint on the surface of the battery tray;

[0017] S3, rinsing: the rinsing mechanism cleans the paint residue remaining on the surface of the battery tray;

[0018] S4, draining: the draining mechanism blows away the water stains attached to the surface of the battery tray;

[0019] S5, drying: the dryer dries the surface of the battery tray.

[0020] The beneficial effects of the present invention are:

[0021] (1) The cleaning branch line transports the battery tray into the cleaning machine, and passes through the water washing mechanism, rinsing mechanism and draining mechanism in turn, which respectively crush and clean the insulating protective paint on the surface of the battery tray, clean the residual paint residue and blow off the attached water stains. At the same time, the mist suction mechanism sucks the water mist generated during the cleaning process in the cleaning machine in real time. After cleaning, the cleaning branch line transports the battery tray to the bus bar, and the bus bar transports it to the dryer for drying. Since the water pressure in the water washing mechanism and the rinsing mechanism is stable and easy to control, the cleaning effect is guaranteed without damaging the battery tray, and the stability can be guaranteed.

[0022] (2) The first identifier identifies the battery cell trays delivered by the main conveyor line and reads the number of times the battery cell trays are painted and cleaned. The battery cell trays that do not need cleaning are distributed to the non-cleaning line by the second distribution mechanism, and the battery cell trays that need cleaning are distributed among multiple cleaning lines by the first distribution mechanism. After cleaning, the cleaning process is read and written by the second identifier, and finally the battery cell trays are connected to the bus. The entire process is automated, which greatly improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of the battery tray in the present invention;

[0025] Figure 2It is a schematic diagram of the structure of the present invention;

[0026] Figure 3 is a top view of the present invention;

[0027] Figure 4 yes Figure 2 Enlarged view of part A in the middle;

[0028] Figure 5 yes Figure 2 Enlarged view of middle part B;

[0029] Figure 6 It is a structural schematic diagram of the first distribution mechanism in the present invention;

[0030] Figure 7 It is the internal schematic diagram of the cleaning machine of the present invention;

[0031] Figure 8 is a schematic diagram of a liquid storage tank in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the water washing mechanism in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the swing assembly in the present invention;

[0034] Fig.11 It is a structural schematic diagram of the rinsing mechanism in the present invention;

[0035] Fig.12 It is a structural schematic diagram of the drainage mechanism in the present invention;

[0036] Fig.13 It is a structural schematic diagram of the drying machine in the present invention;

[0037] Fig.14 It is a structural schematic diagram of the hot air dividing knife in the present invention.

[0038] In the figure: 1, top surface; 11, groove; 2, side surface; 3, end surface; 100, cleaning branch line; 200, bus bar; 300, cleaning machine; 310, cleaning machine body; 320, mist suction mechanism; 330, water washing mechanism; 331, fixed plate; 332, guide rod; 333, guide sleeve; 334, movable plate; 335, cyclone gun; 336, swing assembly; 3361, bearing seat; 3362, rotating shaft; 3363, driving block; 3364, connecting rod; 3365, power part; 337, liquid storage tank; 340, rinsing mechanism; 341, spray pipe; 342, nozzle; 343, circulating filtration water supply system; 350, drain mechanism; 351, blow-dry air knife; 352, adjustment plate; 3521, arc hole; 353, rotating rod; 354, adjustment rod; 355, air pump; 400, dryer; 410, dryer body; 420, drying mechanism; 421, hot air knife; 422, high pressure fan; 423, heating system; 500, conveying main line; 600, non-cleaning branch line; 700, first distribution mechanism; 710, bracket; 720, servo motor; 730, fork; 800, second distribution mechanism; 900, first identifier; 1000, second identifier; 1010, spiral elevator. DETAILED DESCRIPTION

[0039] The present invention will now be further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0040] Before describing the specific technical solution, the shape of the battery tray in this application is roughly introduced. Figure 1 As shown, the cell tray includes a top surface 1, a side surface 2 and an end surface 3. A groove 11 is formed in the middle of the top surface 1, and the side surface 2 and the end surface 3 are inclined surfaces.

[0041] When using laser, ultrasonic or special milling cutter for cleaning, since there is a groove 11 on the top surface 1 and the side surface 2 and end surface 3 are respectively inclined surfaces, there are differences in flatness, resulting in the cleaning of the top surface 1, side surface 2 and end surface 3 requiring precise control of the laser, ultrasonic or special milling cutter, which is difficult to control, has poor stability of the cleaning effect, and is complicated to debug.

[0042] Example 1

[0043] like Figure 2 , Figure 3 and Figure 7As shown, a water cleaning line for insulating protective paint on the surface of a battery tray includes a cleaning branch line 100 and a bus bar 200. The discharge end of the cleaning branch line 100 is connected to the feed end of the bus bar 200. It also includes a cleaning machine 300 and a drying machine 400. The cleaning machine 300 includes a cleaning body 310, a mist suction mechanism 320 respectively installed at the left and right ends of the top of the cleaning body 310, and a water washing mechanism 330, a rinsing mechanism 340 and a draining mechanism 350 arranged in the cleaning body 310 and located above the cleaning branch line 100. The cleaning branch line 100 runs through the cleaning body 310, and the water washing mechanism 330, the rinsing mechanism 340 and the draining mechanism 350 are arranged in sequence from left to right. The bus bar 200 runs through the drying machine 400. The cleaning branch line 100 transports the battery tray into the cleaning body 310, and passes through the water washing mechanism 330, the rinsing mechanism 340 and the draining mechanism 350 in sequence, so as to crush and clean the insulating protective paint on the surface of the battery tray, clean the residual paint residue and blow off the attached water stains. At the same time, the mist suction mechanism 320 absorbs the water mist generated in the cleaning process in the cleaning body 310 in real time. After cleaning, the cleaning branch line 100 transports the battery tray to the bus bar 200, and the bus bar 200 transports it to the dryer 400 for drying. Since the water pressure in the water washing mechanism 330 and the rinsing mechanism 340 is stable and easy to control, the cleaning effect is guaranteed without damaging the battery tray, and the stability can be guaranteed. Specifically, the cleaning branch line 100 and the busbar 200 are prior art, and their main function is to transport the battery tray; there are two cleaning branch lines 100; the output end of the busbar 200 is connected to the spiral elevator 1010; the cleaning body 310 adopts a sealed design; the mist suction mechanism 320 is prior art and will not be described in detail here. In actual application, the water washing mechanism 330 and the rinsing mechanism 340 can be separated by a certain distance to form a transition section in the middle.

[0044] like Figure 2 , Figure 3 and Fig.13 As shown, the dryer 400 includes a dryer body 410 and a drying mechanism 420 disposed in the dryer body 410 and located above the bus bar 200, and the bus bar 200 passes through the dryer body 410. Specifically, the dryer body 410 adopts a sealed design.

[0045] like Figure 7-10As shown, the water washing mechanism 330 includes a fixed plate 331, a guide rod 332, a guide sleeve 333, a movable plate 334, a cyclone gun 335, a swing assembly 336 and a liquid storage tank 337. The fixed plate 331 is longitudinally installed in the cleaning body 310, the guide rod 332 is longitudinally arranged below the fixed plate 331, and its two ends are respectively connected to the fixed plate 331, the guide sleeve 333 is slidably sleeved on the guide rod 332, and its bottom end is connected to the top of the movable plate 334, the cyclone gun 335 is installed on one side of the movable plate 334, the swing assembly 336 is installed at one end of the fixed plate 331 to drive the movable plate 334 to reciprocate longitudinally, and the liquid storage tank 337 is arranged at the bottom of the cleaning body 310, and is respectively connected to the cleaning body 310 and the cyclone gun 335. Specifically, there are two guide rods 332, which are arranged in parallel in the transverse direction, and there are two guide sleeves 333 on each guide rod 332; there are two cyclone guns 335, with a water pressure of 1500 bar, a rotation speed of 2000-3000 r / min, a water flow of 4 L / min, and a distance of 450 mm between the cyclone gun 335 and the battery tray. The swing assembly 336 drives the movable plate 334 to reciprocate in the longitudinal direction, so that the water sprayed by the cyclone gun 335 cleans the surface of the battery tray, and the cleaned water falls into the cleaning tank in the cleaning body 310, and finally flows into the liquid storage tank 337. It should be noted that the reason why the water pressure in this application is 1500 bar is because the water pressure is sufficient to eliminate the difference in flatness of the top surface 1, the side surface 2 and the end surface 3, to ensure the cleaning effect of the top surface 1, the side surface 2 and the end surface 3, and to avoid damage to the battery tray. In addition, when the cyclone gun 335 cleans the end surface 3 of the battery cell tray, compared with laser, ultrasonic wave or special milling cutter, there is no need to leave enough space at both ends of the battery cell tray for placing the cyclone gun 335, and there is no need to adjust the posture of the battery cell tray.

[0046] like Fig. 9 and Fig.10As shown, the swing assembly 336 includes a bearing seat 3361, a rotating shaft 3362, a driving block 3363, a connecting rod 3364 and a power piece 3365. The bearing seat 3361 is installed at one end of the fixed plate 331. The rotating shaft 3362 passes through the bearing seat 3361 and is rotatably matched with the bearing seat 3361. The bottom end of the rotating shaft 3362 is connected to the middle of the driving block 3363, and its top end is connected to the power piece 3365 in a transmission manner. One end of the connecting rod 3364 is hinged to one end of the driving block 3363, and the other end is hinged to one end of the movable plate 334. Specifically, the power piece 3365 includes a slave pulley, a main pulley, a belt and a motor. The slave pulley is installed at the top of the rotating shaft 3362, the main pulley is installed at the output end of the motor, and the belt transmission sleeve is arranged on the main pulley and the slave pulley. During operation, the motor drives the rotating shaft 3362 to rotate through the main pulley, the belt and the slave pulley, thereby synchronously driving the driving block 3363 to rotate. The rotation of the driving block 3363 drives the movable plate 334 to reciprocate longitudinally through the connecting rod 3364, thereby realizing the cleaning of the top surface 1, the side surface 2 and the end surface 3 by the cyclone gun 335.

[0047] like Figure 7 and Fig.11 As shown, the rinsing mechanism 340 includes a spray pipe 341, a nozzle 342 and a circulating filtration water supply system 343. The spray pipe 341 is longitudinally installed in the cleaning body 310. There are several nozzles 342 installed at the bottom of the spray pipe 341. The circulating filtration water supply system 343 is arranged at the bottom of the cleaning body 310 and is connected to the cleaning body 310 and the spray pipe 341 respectively. Specifically, there are three spray pipes 341, which are evenly spaced in the horizontal direction, and there are three nozzles 342 on each spray pipe 341. The water sprayed by the nozzle 342 performs secondary cleaning on the surface of the battery tray. The cleaned water falls into the rinsing tank in the cleaning body 310 and finally enters the circulating filtration water supply system 343.

[0048] like Figure 7 and Fig.12As shown, the drain mechanism 350 includes a blow-drying air knife 351, an adjustment plate 352, a rotating rod 353, an adjustment rod 354 and an air pump 355. The blow-drying air knife 351 is longitudinally arranged on the cleaning body 310, and the adjustment plates 352 are respectively arranged on both sides of the blow-drying air knife 351 along the longitudinal direction. The blow-drying air knife 351 is rotatably connected with the adjustment plate 352 through the rotating rod 353. The adjustment plate 352 is provided with an arc hole 3521. One end of the adjustment rod 354 is connected to the blow-drying air knife 351, and the other end thereof passes through the arc hole 3521. The air pump 355 is arranged at the bottom of the cleaning body 310 and is connected to the blow-drying air knife 351. The adjustment rod 354 moves in the arc hole 3521 to adjust the angle of the blow-drying air knife 351 and the cleaning distance. Specifically, there are three blow-drying air knives 351, which are evenly spaced in the horizontal direction; there are three air pumps 355. The bottom air outlet of the drying air knife 351 blows out air to remove the residual water on the surface of the battery cell tray.

[0049] like Fig.13 and Fig.14 As shown, the drying mechanism 420 includes a hot air dividing knife 421, a high pressure fan 422 and a heating system 423. The hot air dividing knife 421 is longitudinally installed in the drying machine body 410. The high pressure fan 422 is connected to the hot air dividing knife 421 through the heating system 423. The high pressure fan 422 and the heating system 423 are both arranged at the bottom of the washing machine body 310. Specifically, there are eight hot air dividing knives 421, which are evenly spaced in the horizontal direction.

[0050] like Figure 2-Figure 5As shown, the water cleaning line of the insulating protective paint on the surface of the battery tray also includes a conveying main line 500, a non-cleaning branch line 600, a first distribution mechanism 700, a second distribution mechanism 800, a first identifier 900 and a second identifier 1000. There are multiple cleaning branch lines 100. The output end of the conveying main line 500 is connected to the input ends of the two cleaning branch lines 100, and the first distribution mechanism 700 is set at the connection. The rear of the output end of the conveying main line 500 is connected to the input end of the non-cleaning branch line 600, and the second distribution mechanism 800 is set at the connection. The output end of the non-cleaning branch line 600 is connected to the input end of the bus 200, the first identifier 900 is set on one side of the conveying main line 500, and is located behind the second distribution mechanism 800, and the second identifier 1000 is set on one side of the output end of the cleaning branch line 100. Specifically, the conveying main line 500 and the non-cleaning branch line 600 are both existing technologies. The first identifier 900 identifies the battery trays delivered by the main conveyor line 500, reads the number of times of painting and cleaning, and those that do not need cleaning are distributed to the non-cleaning branch line 600 by the second distribution mechanism 800, and those that need cleaning are then diverted between the two cleaning branch lines 100 by the first distribution mechanism 700. After cleaning, the second identifier 1000 reads and writes the records of the cleaning process, and finally merges into the bus 200. The whole process is automated, which greatly improves the cleaning efficiency. It should be noted that in actual work, the top surface 1 needs to be cleaned every time, and the other surfaces can be cleaned once at intervals set as needed.

[0051] like Figure 4 and Figure 6 As shown, the first distribution mechanism 700 and the second distribution mechanism 800 both include a bracket 710, a servo motor 720 and a shift fork 730. The bracket 710 is installed on the main conveying line 500. The servo motor 720 is vertically installed at the middle of the top of the bracket 710, and its output end is connected to the front end of the shift fork 730. Specifically, the bracket 710 is in an inverted U shape. The servo motor 720 drives the shift fork 730 to swing to achieve the diversion of the battery tray.

[0052] During operation, the main conveying line 500 conveys the cell trays in an orderly manner, and the first identifier 900 is used to determine whether cleaning is required. The cell trays that do not need cleaning are transferred to the non-cleaning sub-line 600 by the second distribution mechanism 800, and the cell trays that need cleaning enter the cleaning sub-line 100 and are diverted by the first distribution mechanism 700. The cleaning sub-line 100 sends the cell trays into the cleaning body 310, and sequentially washes, rinses and drains. During this process, the mist suction mechanism 320 continues to work. The cleaned cell trays are input into the bus 200 by the cleaning sub-line 100, and the second identifier 1000 records the cleaning process of the cell trays. The bus 200 sends the cell trays into the drying body 410 for drying. Since water cleaning is used, a large amount of floating paint fragments will not be generated during the cleaning process, and there is no need to equip special dust removal equipment, which is low in cost. Moreover, the wastewater after cleaning is treated by the sewage treatment equipment and discharged into the sewage pipe on site after meeting the standards, which will not affect the occupational health of workers.

[0053] Example 2

[0054] A method for cleaning the insulating protective paint on the surface of a battery tray with water, the steps are as follows:

[0055] S1, defog: the mist suction mechanism 320 sucks the mist in the cleaning body 310;

[0056] S2, water washing: the water washing mechanism 330 sprays high-pressure water to break and clean the insulating protective paint on the surface of the battery tray;

[0057] S3, rinsing: the rinsing mechanism 340 cleans the paint residue remaining on the surface of the battery tray;

[0058] S4, draining: the draining mechanism 350 blows away the water stains attached to the surface of the battery tray;

[0059] S5, drying: the dryer 400 dries the surface of the battery tray.

[0060] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A water cleaning line for insulating protective paint on the surface of a battery tray, comprising a cleaning branch line (100) and a bus bar (200), wherein the discharge end of the cleaning branch line (100) is connected to the feed end of the bus bar (200), characterized in that: The invention also comprises a cleaning machine (300) and a drying machine (400). The cleaning machine (300) comprises a cleaning machine body (310), a mist suction mechanism (320) respectively mounted on the left and right ends of the top of the cleaning machine body (310), and a water washing mechanism (330), a rinsing mechanism (340) and a drainage mechanism (350) arranged in the cleaning machine body (310) and located above the cleaning branch line (100). The cleaning branch line (100) runs through the cleaning machine body (310), the water washing mechanism (330), the rinsing mechanism (340) and the drainage mechanism (350) are arranged in sequence from left to right at intervals, and the bus bar (200) runs through the drying machine (400).

2. The water washing line for insulating protective paint on the surface of battery tray according to claim 1 is characterized in that: The dryer (400) comprises a dryer body (410) and a drying mechanism (420) arranged in the dryer body (410) and located above a bus bar (200), wherein the bus bar (200) passes through the dryer body (410).

3. The water washing line for insulating protective paint on the surface of the battery tray according to claim 1, characterized in that: The water washing mechanism (330) comprises a fixed plate (331), a guide rod (332), a guide sleeve (333), a movable plate (334), a cyclone gun (335), a swing assembly (336) and a liquid storage tank (337). The fixed plate (331) is longitudinally mounted in the cleaning machine body (310). The guide rod (332) is longitudinally arranged below the fixed plate (331) and its two ends are respectively connected to the fixed plate (331). The guide sleeve (333) is ) is slidably sleeved on the guide rod (332), and its bottom end is connected to the top of the movable plate (334), the cyclone gun (335) is installed on one side of the movable plate (334), the swing assembly (336) is installed on one end of the fixed plate (331) to drive the movable plate (334) to reciprocate longitudinally, and the liquid storage tank (337) is arranged at the bottom of the cleaning body (310) and is respectively connected to the cleaning body (310) and the cyclone gun (335).

4. The water washing line for insulating protective paint on the surface of the battery tray according to claim 3, characterized in that: The swing assembly (336) comprises a bearing seat (3361), a rotating shaft (3362), a driving block (3363), a connecting rod (3364) and a power piece (3365); the bearing seat (3361) is mounted on one end of the fixed plate (331); the rotating shaft (3362) passes through the bearing seat (3361) and is rotatably matched with the bearing seat (3361); the bottom end of the rotating shaft (3362) is connected to the middle part of the driving block (3363), and the top end thereof is transmission-connected to the power piece (3365); one end of the connecting rod (3364) is hinged to one end of the driving block (3363), and the other end thereof is hinged to one end of the movable plate (334).

5. The water washing line for insulating protective paint on the surface of battery tray according to claim 1, characterized in that: The rinsing mechanism (340) comprises a spray pipe (341), a nozzle (342) and a circulating filtering water supply system (343); the spray pipe (341) is longitudinally installed in the cleaning body (310); there are a plurality of nozzles (342) installed at the bottom of the spray pipe (341); the circulating filtering water supply system (343) is arranged at the bottom of the cleaning body (310) and is respectively connected to the cleaning body (310) and the spray pipe (341).

6. The water washing line for insulating protective paint on the surface of battery tray according to claim 1, characterized in that: The drain mechanism (350) comprises a blow-drying air knife (351), an adjustment plate (352), a rotating rod (353), an adjustment rod (354) and an air pump (355); the blow-drying air knife (351) is longitudinally arranged on the cleaning body (310); the adjustment plates (352) are longitudinally arranged on both sides of the blow-drying air knife (351); the blow-drying air knife (351) is rotatably connected to the adjustment plate (352) via the rotating rod (353); an arc-shaped hole (3521) is provided on the adjustment plate (352); one end of the adjustment rod (354) is connected to the blow-drying air knife (351), and the other end thereof passes through the arc-shaped hole (3521); the air pump (355) is arranged at the bottom of the cleaning body (310) and is connected to the blow-drying air knife (351).

7. The water washing line for insulating protective paint on the surface of battery tray according to claim 2, characterized in that: The drying mechanism (420) comprises a hot air dividing knife (421), a high-pressure fan (422) and a heating system (423); the hot air dividing knife (421) is longitudinally installed in the drying machine body (410); the high-pressure fan (422) is connected to the hot air dividing knife (421) via the heating system (423); and the high-pressure fan (422) and the heating system (423) are both arranged at the bottom of the cleaning machine body (310).

8. The water cleaning line for insulating protective paint on the surface of battery tray according to claim 1, characterized in that: The invention also comprises a main conveying line (500), a non-cleaning branch line (600), a first distribution mechanism (700), a second distribution mechanism (800), a first identifier (900) and a second identifier (1000); the plurality of cleaning branch lines (100); the output end of the main conveying line (500) is connected to the input ends of the plurality of cleaning branch lines (100), and the first distribution mechanism (700) is arranged at the connection; the rear of the output end of the main conveying line (500) is connected to the input end of the non-cleaning branch line (600), and the second distribution mechanism (800) is arranged at the connection; the output end of the non-cleaning branch line (600) is connected to the input end of the bus bar (200); the first identifier (900) is arranged on one side of the main conveying line (500) and is located behind the second distribution mechanism (800); and the second identifier (1000) is arranged on one side of the output end of the cleaning branch line (100).

9. The water cleaning line for insulating protective paint on the surface of battery tray according to claim 8, characterized in that: The first distribution mechanism (700) and the second distribution mechanism (800) both comprise a bracket (710), a servo motor (720) and a shift fork (730); the bracket (710) is mounted on the main conveying line (500); the servo motor (720) is vertically mounted at the middle of the top end of the bracket (710), and its output end is connected to the front end of the shift fork (730).

10. A method for water cleaning of insulating protective paint on the surface of a battery tray, comprising a water cleaning line for insulating protective paint on the surface of a battery tray as claimed in any one of claims 1 to 9, characterized in that: Here are the steps: S1, defog: the mist suction mechanism (320) sucks the water mist in the cleaning body (310); S2, water washing: the water washing mechanism (330) sprays high-pressure water to break and clean the insulating protective paint on the surface of the battery tray; S3, rinsing: the rinsing mechanism (340) cleans the paint residue remaining on the surface of the battery tray; S4, draining: the draining mechanism (350) blows away the water stains attached to the surface of the battery tray; S5, drying: the drying machine (400) dries the surface of the battery tray.

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