A power battery aluminum foil surface cleaning device and method

Abstract

The present application belongs to the technical field of aluminum foil surface treatment, and particularly relates to a power battery aluminum foil surface cleaning device and method, which comprises a conveying assembly, the conveying assembly comprises a first guide roller group and a second guide roller group arranged in sequence along the vertical direction; the cleaning assembly comprises a box body, a movable spray cleaning assembly and a fixed spray cleaning assembly, the fixed spray cleaning assembly is fixed in the box body; a lifting mechanism is arranged on the inner side of the frame and connected with the cleaning assembly for driving, the two sides of the box body are respectively connected with a cable, the cable is connected with the movable spray cleaning assembly after being guided by a guide wheel; when the lifting driving mechanism drives the box body to ascend in the direction of guide roller two, the movable spray cleaning assembly descends in the direction of guide roller two by gravity. The present application sprays the aluminum foil outside and inside the cleaning liquid respectively, the two modes are combined, the spraying effect is greatly improved, the aluminum foil has a large cleaning surface when being rapidly conveyed, the oil film can be completely removed, and the cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of aluminum foil surface treatment, in particular to a power battery aluminum foil surface cleaning device and method. BACKGROUND

[0002] From thick foil to single zero foil and double zero foil, this material with a maximum thickness of not more than 0.2mm is widely used in multiple fields, such as power battery aluminum foil for battery components of electric vehicles and hybrid electric vehicles. Rolling oil will be attached on the surface of the aluminum foil, and it is undoubtedly not allowed to be attached on the surface of the aluminum foil roll when it is rolled into a finished aluminum foil roll. When removing the rolling oil from the surface of the aluminum foil, the main means is to use a cleaning line to penetrate the aluminum foil through the entire cleaning line to break the oil film on the surface of the aluminum foil and then clean it, and then dry it in the wind, and finally roll it into a finished aluminum foil roll.

[0003] The current cleaning and drying line (cleaning device) has the following defects:

[0004] 1. The aluminum foil is cleaned by spraying high-pressure cleaning liquid during conveying, and the cleaning efficiency is not high. When the aluminum foil is conveyed quickly, the cleaning surface is small, and the oil film cannot be completely removed.

[0005] 2. On the cleaning line, the oil and other impurities cleaned will follow the aluminum foil into the next link due to the rapid conveying of the aluminum foil, that is, on the multiple parallel cleaning lines, it will cause secondary pollution problems.

[0006] 3. The existing fixed cleaning and drying line limits the cleaning efficiency and cleaning effect of the aluminum foil. When the cleaning and drying line fails, the conveying and cleaning of the aluminum foil must be stopped, which has a great impact on the production of the aluminum foil. SUMMARY

[0007] In view of the technical problems in the background art, the present application provides a power battery aluminum foil surface cleaning device and method.

[0008] To achieve the above-mentioned purpose, the technical scheme provided by the present application is:

[0009] A power battery aluminum foil surface cleaning device, comprising:

[0010] A conveying assembly, the conveying assembly comprises a first guide roller group and a second guide roller group arranged in sequence in the vertical direction, the first guide roller group comprises a plurality of horizontally arranged guide rollers one, the second guide roller group comprises a plurality of horizontally arranged guide rollers two, and two guide rollers two are arranged between adjacent two guide rollers one;

[0011] A cleaning assembly, the cleaning assembly comprises a box body, a movable spray cleaning assembly and a fixed spray cleaning assembly, the fixed spray cleaning assembly is fixed in the box body, and the movable spray cleaning assembly is arranged above the fixed spray cleaning assembly;

[0012] Lifting mechanism, the lifting mechanism is arranged in the frame inside, the cleaning assembly and lifting mechanism connection drive, the both sides of the box are connected with the cable respectively, the frame is provided with several guide wheels, the cable passes through the guide wheel in turn and is connected with the movable spray cleaning assembly;

[0013] When the lifting drive mechanism drives the box to ascend to the guide roller two direction, the movable spray cleaning assembly drops to the guide roller two direction by the dead weight.

[0014] Optionally, the cleaning assembly is provided with a plurality of along the aluminum foil conveying direction.

[0015] Optionally, the power battery aluminum foil surface cleaning device further includes a track trolley walking on a guide rail, and the frame and the lifting mechanism are fixed on the track trolley body.

[0016] Optionally, a recycling groove is formed in the ground under the bottom of the trolley body.

[0017] Optionally, the aluminum foil is guided by the guide roller one and the guide roller two in turn after passing through the guide roller one each time, and is wound on the guide roller one and the guide roller two in turn.

[0018] Optionally, the fixed spray cleaning assembly includes a side spraying part one, a bottom spraying part one and a side spraying part two in turn along the aluminum foil conveying direction.

[0019] Optionally, the side spraying part two includes a water washing part one inside the box and an air drying part one at the upper end of the box.

[0020] Optionally, the conveying assembly includes a main beam, the bottom side of the main beam is provided with a cross beam and a vertical beam, the guide roller one is arranged on the cross beam, and the guide roller two is arranged on the vertical beam.

[0021] Optionally, the both sides of the bottom spraying part two are provided with a bearing platform wrapping the guide roller two, and the bearing platform is provided with a clamping part.

[0022] A power battery aluminum foil surface cleaning method includes the following steps:

[0023] S1, sequentially divided into working cleaning area, standby cleaning area and standby cleaning area along the aluminum foil conveying direction, a plurality of cleaning assemblies are arranged in the working cleaning area, at least one cleaning assembly is arranged in the standby cleaning area, the turbidity of the cleaning liquid inside the box of the plurality of cleaning assemblies along the aluminum foil conveying direction in the standby cleaning area decreases in turn;

[0024] S2, when the turbidity of the first cleaning assembly is lower than the standard requirement, stop spraying cleaning; at the same time, the standby cleaning area starts to spray;

[0025] S3, after the first cleaning assembly in the working cleaning area is disabled, the lifting mechanism is started, the movable spray cleaning assembly and the fixed spray cleaning assembly are controlled to move away from the conveyed aluminum foil, and then the track trolley is started to move the first cleaning assembly to the standby cleaning area, so that it becomes a new standby cleaning area.

[0026] The present application has the following advantages and beneficial effects:

[0027] I. Unlike the traditional fixed cleaning and drying line, the present application provides a movable cleaning and drying line, which is driven by the lifting mechanism to move the box upward along the direction of guide roller two, and at the same time, the movable spray cleaning assembly is lowered along the direction of guide roller two by gravity, so as to surround the front and back surfaces of the aluminum foil to realize double-sided spray cleaning. In this way, the aluminum foil is soaked in the cleaning liquid, which can enhance the contact degree between the aluminum foil and the cleaning liquid. The spray cleaning of the aluminum foil is divided into spraying outside the cleaning liquid and spraying inside the cleaning liquid, and the combination of the two methods greatly improves the spray effect. When the aluminum foil is conveyed quickly, it has a large cleaning surface, which can completely remove the oil film.

[0028] II. In the present application, when the turbidity of the cleaning liquid gradually increases after cleaning and exceeds the standard requirement, the lifting mechanism is started to control the movable spray cleaning assembly and the fixed spray cleaning assembly to move away from the conveyed aluminum foil, and then the track trolley is started to move the first cleaning assembly to the standby cleaning area, so that it becomes a new standby cleaning area. That is, this structure and method can timely replace the substandard cleaning liquid and change the cleaning area, so that the aluminum foil is always located in the clean cleaning liquid, thereby ensuring the cleaning effect. In this cleaning line, when a cleaning assembly fails, a new cleaning assembly can be added in time, and the aluminum foil conveying cannot be stopped, so that cleaning can be carried out without stopping. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The schematic diagram of the cleaning device provided by the present application is shown in the figure;

[0030] Figure 2 The partial enlarged view of the cleaning device provided by the present application is shown in the figure;

[0031] Figure 3 is Figure 2 the sectional view along the direction A-A.

[0032] Figure 4 For Figure 3 Schematic view of the fixed spray washing assembly and the movable spray washing assembly away from the aluminum foil;

[0033] Figure 5 The connection structure diagram of the aluminum foil and the conveying assembly provided by the application;

[0034] Figure 6 For Figure 5 The half-sectional view;

[0035] Figure 7 The first structure diagram of the spray washing assembly provided by the application;

[0036] Figure 8 The second structure diagram of the spray washing assembly provided by the application;

[0037] Figure legend: 1 - base, 11 - recovery tank, 12 - guide rail, 2 - vehicle body main body, 21 - wheel, 22 - frame, 23 - crossbar, 24 - guide wheel one, 25 - guide wheel two, 26 - guide wheel three, 27 - cable, 3 - lifting mechanism, 31 - top plate, 32 - limiting part, 4 - box body, 41 - drain pipe, 42 - pin shaft, 43 - pin hole one, 5 - fixed spray washing assembly, 51 - side spraying part one, 511 - cleaning box, 512 - spraying hole one, 513 - outer frame, 514 - water pipe, 515 - spraying hole two, 52 - bottom spraying part one, 53 - side spraying part two, 531 - air drying part one, 532 - water washing part one, 54 - fixed block, 6 - movable spray washing assembly, 61 - side spraying part three, 62 - bearing platform, 621 - clamping part, 63 - bottom spraying part two, 64 - side spraying part four, 641 - air drying part two, 642 - water washing part two, 65 - connecting part, 7 - main beam, 71 - auxiliary beam, 72 - cross beam, 73 - vertical beam, 74 - pin hole two, 8 - guide roller one, 9 - guide roller two. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application.

[0039] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application without creative labor are within the scope of protection of the application.

[0040] Example 1

[0041] As Figures 1-8 shown, a power battery aluminum foil surface cleaning device, comprising: conveying assembly, cleaning assembly, lifting mechanism 3, track trolley and other mechanisms.

[0042] As Figure 1 , Figure 2 shown, the conveying assembly comprises a first guide roller group and a second guide roller group arranged in sequence in the vertical direction, that is, the first guide roller group and the second guide roller group are arranged at different height positions. The first guide roller group comprises a plurality of horizontally arranged guide rollers one 8, and the second guide roller group comprises a plurality of horizontally arranged guide rollers two 9, and two guide rollers two 9 are arranged between adjacent two guide rollers one 8.

[0043] As Figures 1-3 shown, the conveying assembly is fixed on the beam as a whole. Specifically: it includes two main beams 7 arranged horizontally along the aluminum foil conveying direction, and each main beam 7 is provided with a plurality of auxiliary beams 71 at the bottom side of the main beam 7, and the bottom ends of adjacent two auxiliary beams 71 are provided with a cross beam 72, and the bottom end of each cross beam 72 is provided with two vertical beams 73. The guide rollers one 8 are rotatably arranged on the two cross beams 72, and the guide rollers two 9 are rotatably arranged at the two vertical beams 73.

[0044] Referring to Figure 1 , Figure 2 , the conveying and winding mode of the aluminum foil, the aluminum foil is first wound on the surface of the first guide roller one 8, then wound on the first guide roller two 9 and the second guide roller two 9, and then wound on the surface of the second guide roller one 8, which is a path trend, corresponding to a cleaning assembly. From this cycle, winding up and down, finally forming a mode as shown in Figure 1 .

[0045] As Figures 2-4 shown, the cleaning assembly comprises a box body 4, a movable spray cleaning assembly 6 and a fixed spray cleaning assembly 5, and the fixed spray cleaning assembly 5 is provided with a fixed block 54 on both sides, which is fixed on the upper end of the box body 4. That is, the fixed spray cleaning assembly 5 and the box body 4 are fixed as a whole. The movable spray cleaning assembly 6 is arranged above the fixed spray cleaning assembly 5 and can move up and down relative to the fixed spray cleaning assembly 5.

[0046] As Figure 3 , Figure 4The lifting mechanism 3 is arranged inside the frame 22, and the cleaning assembly and the lifting mechanism 3 are connected and driven. The lifting mechanism 3 is selected from the prior art, such as a scissor lifting mechanism (driven by a pneumatic cylinder, a hydraulic cylinder or the like), or directly using a pneumatic cylinder or the like telescopic mechanism to drive, or using a screw nut lifting mechanism, and the like. In the drawings of the present application, the scissor lifting mechanism is shown, and the specific content will not be described in detail. The top surface of the lifting mechanism 3 is provided with a top plate 31, and the two sides of the top plate 31 are provided with limiting portions 32. The two sides of the box body 4 are respectively connected with a cable 27, and a plurality of guide wheels are arranged on the frame 22, and the cable 27 passes through the guide wheels in sequence and is connected with the movable spraying and washing assembly 6. Specifically, the frame 22 is inwardly extended at the bottom end to be provided with a cross bar 23, the frame 22 is provided with a guide wheel one 24 in the middle, the cross bar 23 is provided with a guide wheel two 25 and a guide wheel three 26, the upper end of the movable spraying and washing assembly 6 is provided with a connecting portion 65, the connecting portion 65 is located directly below the guide wheel three 26, and the cable 27 is sequentially wound around the guide wheel one 24, the guide wheel two 25 and the guide wheel three 26, and then is fixedly connected with the connecting portion 65 of the movable spraying and washing assembly 6.

[0047] As shown in Figure 2 and 3 , when the lifting driving mechanism drives the box body 4 to ascend in the direction of the guide roller two 9, the movable spraying and washing assembly 6 descends in the direction of the guide roller two 9 by gravity, so as to wrap the front and back surfaces of the aluminum foil, and spraying can be performed. At this time, part of the aluminum foil is located inside the box body 4, and part of the aluminum foil is located outside the box body 4. That is, at this time, the fixed spraying and washing assembly 5 and the movable spraying and washing assembly 6 can spray and wash the surface of the aluminum foil from the atmosphere, or can wash the surface of the aluminum foil in the cleaning liquid in the box body 4.

[0048] As shown in Figure 4 , when the lifting driving mechanism drives the box body 4 to descend away from the guide roller two 9, the movable spraying and washing assembly 6 is also pulled to ascend away from the guide roller two 9, that is, the fixed spraying and washing assembly 5 and the movable spraying and washing assembly 6 are both away from the aluminum foil, so that the maintenance, cleaning, replacement and the like of the fixed spraying and washing assembly 5 and the movable spraying and washing assembly 6 can be conveniently performed.

[0049] As shown in Figure 1 , the cleaning assembly is provided with a plurality of cleaning assemblies along the conveying direction of the aluminum foil.

[0050] Specifically, along the conveying direction of the aluminum foil, the cleaning assembly is sequentially divided into a working cleaning area, a standby cleaning area and a standby cleaning area, a plurality of cleaning assemblies are arranged in the working cleaning area, and at least one cleaning assembly is arranged in the standby cleaning area. As one of the preferred modes, in the present application, the working cleaning area along the conveying direction of the aluminum foil is sequentially a zone, a zone, a zone, a zone and a zone; the standby cleaning area is a zone; the standby cleaning area is sequentially a zone and a zone, and the number of the standby cleaning area is sufficient, which is not completely shown in the drawings.

[0051] The turbidity of the cleaning liquid inside the box 4 of the working cleaning area along the cleaning assemblies decreases in turn. Because the aluminum foil passes through the inside of the box 4 of the cleaning assemblies in turn, the cleanliness / turbidity of the cleaning liquid in each area is different after cleaning in turn. The cleaning assemblies are arranged in the a zone to the e zone, the box 4 has the cleaning liquid, the aluminum foil passes through these areas in turn after cleaning, the turbidity of the cleaning liquid in each area decreases in turn, and in the e zone, the aluminum foil after cleaning in the last area meets the standard, and the rolling oil is completely removed. In the f zone, the cleaning assembly does not work, and the box 4 does not have the cleaning liquid. In the g zone and the h zone, there is no cleaning assembly.

[0052] Embodiment 2

[0053] The power battery aluminum foil surface cleaning device also comprises a track trolley running on the guide rail 12, and the track trolley comprises a vehicle body 2, a frame 22, and a lifting mechanism 3 fixed on the vehicle body 2.

[0054] The track is arranged on the foundation 1, and a recovery groove 11 is arranged in the foundation 1 at the bottom of the vehicle body 2.

[0055] That is, the lifting mechanism 3 can move, and by running of the track trolley, the lifting mechanism 3 and any cleaning assembly above the lifting mechanism 3 can be controlled to change positions.

[0056] For example, after working for a certain period of time in the working cleaning areas a-e, the turbidity of the a zone is the highest, because the a zone first contacts the aluminum foil for cleaning, and thus the turbidity is the highest. When the turbidity of the a zone does not meet the standard requirement, the a zone needs to stop working, so as to avoid secondary pollution of the subsequent cleaning assemblies, and the cleaning liquid in the box 4 of the a zone is discharged into the recovery groove 11 through the pollution discharge pipe 41 for recovery. However, after the a zone stops working, only the b-e zones work, the working area is reduced by one, and the aluminum foil cleaning cannot meet the requirement, and thus a new working cleaning area needs to be added. Therefore, when the a zone stops working, or before that, the standby cleaning area, that is, the f zone, starts to work, and the box 4 in the f zone is filled with cleaning liquid. At this time, the a zone stops working, the working cleaning areas are b-f, and the b zone becomes the first working cleaning area and starts to monitor the turbidity of the b zone. After the a zone stops working and the pollution is discharged, the cleaning assembly of the a zone is controlled by the lifting mechanism 3 to move away from the aluminum foil, and the track trolley moves to move the cleaning assembly of the a zone to the g zone, and the cleaning assembly is fixed in the g zone. At this time, the g zone becomes a new standby cleaning area. In this way, with the increase of the cleaning time, the working cleaning area and the standby cleaning area on the cleaning line change positions in turn and change along the aluminum foil conveying direction.

[0057] Obviously, this kind of mobile cleaning method, relative to the traditional fixed cleaning method, by setting multiple cleaning components in the working cleaning area, the aluminum foil is cleaned in turn, so that the turbidity of the cleaning liquid in the box 4 in the working cleaning area will be reduced in turn, so as to finally meet the cleaning requirements. And, when the turbidity of the cleaning liquid in the working cleaning area does not meet the requirements, the substandard cleaning liquid can be replaced in time, the cleaning area can be changed, and the aluminum foil can be kept in the clean cleaning liquid at all times, so as to ensure the cleaning effect and avoid secondary pollution. When a cleaning component fails, a new cleaning component can be added in time without stopping the aluminum foil conveying, so that cleaning can be carried out without stopping.

[0058] Embodiment 3

[0059] As shown in Figure 2 , Figure 5 , Figure 6 The transverse section of the fixed spray cleaning component 5 is set as a "concave" opening shape with gradually increasing opening degree, and is arranged close to the bottom surface of the aluminum foil. The transverse section of the movable spray cleaning component 6 is set as a "concave" opening shape with gradually increasing opening degree, and is arranged close to the top surface of the aluminum foil.

[0060] Specifically:

[0061] The fixed spray cleaning component 5 includes a side spray part one 51, a bottom spray part one 52 and a side spray part two 53 in turn along the conveying direction of the aluminum foil. The movable spray cleaning component 6 includes a side spray part three 61, a bottom spray part two 63 and a side spray part four 64 in turn along the conveying direction of the aluminum foil.

[0062] The side spray part two 53 includes a water washing part one 532 inside the box 4 and a air drying part one 531 at the upper end of the box 4. The side spray part four 64 includes a water washing part two 642 inside the box 4 and a air drying part two 641 at the upper end of the box 4.

[0063] In this way, after being guided by the guide roller one 8 and the guide roller two 9, the side spray part one 51 and the bottom spray part one 52 spray and clean the bottom surface of the aluminum foil, the water washing part one 532 of the side spray part two 53 sprays and cleans the bottom surface of the aluminum foil, and the air drying part one 531 air dries the bottom of the aluminum foil to prevent the cleaning liquid from being brought into the box 4 of the next cleaning component by the aluminum foil, causing secondary pollution. The side spray part three 61 and the bottom spray part two 63 spray and clean the top surface of the aluminum foil, the water washing part two 642 of the side spray part four 64 sprays and cleans the top surface of the aluminum foil, and the air drying part two 641 air dries the top of the aluminum foil to prevent the cleaning liquid from being brought into the box 4 of the next cleaning component by the aluminum foil, causing secondary pollution.

[0064] The present application increases the cleaning area after being guided by guide roller one 8 and guide roller two 9, and the two side surfaces and the bottom surface are sprayed, and the rear surface is provided with a drying part to dry, so that the aluminum foil is prevented from carrying cleaning liquid to the next cleaning assembly. This kind of mode can not only increase the cleaning area, but also ensure the cleaning cleanliness, efficiency and effect.

[0065] As shown in Figure 7 , the side surface spraying part one 51 includes a cleaning box 511, the cleaning box 511 has a water cavity inside, and the surface of the cleaning box 511 is provided with a plurality of spraying holes one 512. As shown in Figure 8 , as another preferred mode, the side surface spraying part one 51 includes an outer frame 513, a plurality of water pipes 514 are arranged in the outer frame 513, adjacent water pipes 514 are connected at the head and tail, and the water pipes 514 are provided with a plurality of spraying holes two 515.

[0066] The above lists two groups of spraying assembly setting modes, which are arranged on both sides of the aluminum foil for spraying cleaning in a plate block type or a pipe array type design.

[0067] The water outlet of the spraying part is extracted by the pump body. Since the corresponding box body 4 has cleaning liquid inside, the extraction pipe only needs to be placed in the box body 4, and the pump body is used for suction, so that the cleaning liquid is sprayed out of the spraying holes of the spraying part. After cleaning, the cleaning liquid is circulated back to the box body 4, realizing recycling.

[0068] Embodiment 4

[0069] As shown in Figure 4 , the box body 4 is provided with a pin hole one 43 on both sides, and the vertical beam 73 is provided with a pin hole two 74 on both sides. When the box body 4 rises until the pin hole one 43 and the pin hole two 74 are connected, the pin shaft 42 is inserted and clamped (as shown in Figure 3 ). The box body 4 is clamped and fixed on the vertical beam 73 by the pin shaft 42, without the support of the lifting device.

[0070] As shown in Figure 2 , 5 , further, the two sides of the bottom surface spraying part two 63 are provided with a bearing platform 62 wrapping the guide roller two 9, and the bearing platform 62 is provided with a clamping part 621. When the pin shaft 42 is clamped into the pin hole one 43 and the pin hole two 74, the pin shaft 42 can continue to extend and be clamped into the clamping part 621. The movable spraying assembly 6 is clamped by the pin shaft 42, so that the movable spraying assembly 6, the box body 4 and the vertical beam 73 are completely fixed as a whole, ensuring the stability of the whole cleaning assembly. Even if the inextensible cable 27 breaks down and other accidents occur, the cleaning assembly can be firmly and reliably fixed, ensuring the stability of the movable spraying assembly 6, avoiding the movement and deviation of the movable spraying assembly 6, reducing the cleaning effect, and even colliding with the aluminum foil.

[0071] A power battery aluminum foil surface cleaning method comprises the following steps:

[0072] S1, along the aluminum foil conveying direction is divided into working cleaning area, standby cleaning area and standby cleaning area in turn, a plurality of cleaning assemblies are arranged in the working cleaning area, at least one cleaning assembly is arranged in the standby cleaning area; after cleaning for a certain time, the turbidity of the cleaning liquid inside the box body 4 of the plurality of cleaning assemblies in the standby cleaning area along the aluminum foil conveying direction decreases in turn.

[0073] According to the number of cleaning assemblies in the working cleaning area and other parameters, the lower limit values of the turbidity of the cleaning assemblies in each area of the working cleaning area are set, and the lower limit values of the turbidity of the a-e areas are recorded as ka, kb, kc, kd, kf, and ke in turn.

[0074] During the cleaning of the aluminum foil, the turbidity of each area in the working cleaning area is recorded in real time, and the turbidity of the a-e areas is recorded as ka1, kb1, kc1, kd1, kf1, and ke1 in turn. The turbidity of each area is recorded in real time and compared with the lower limit value, and when the turbidity of any one area is greater than the lower limit value of the turbidity of the area, the spraying operation of the first area, i.e. the a area, is started to stop.

[0075] S2, when the turbidity of any one of the a-e areas is greater than the lower limit value of the turbidity of the area, the spraying operation of the first area, i.e. the a area, is started to stop, and the standby cleaning area starts to spray, i.e. the f area starts to spray.

[0076] S3, after the a area cleaning assembly in the working cleaning area is disabled, the lifting mechanism 3 is started, the movable spray cleaning assembly 6 and the fixed spray cleaning assembly 5 are controlled to move away from the conveyed aluminum foil, and then the track trolley is started to move the cleaning assembly in the first a area to the standby cleaning area, i.e. to the g area, at this time the g area becomes a new standby cleaning area.

[0077] After the positions of the working cleaning area, the standby cleaning area, and the standby cleaning area are updated, the turbidity of each area in the working cleaning area is monitored again according to the steps of S1. This is repeated to realize the cleaning operation of the aluminum foil.

[0078] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for cleaning the surface of aluminum foil in a power battery, characterized in that... :include The conveying assembly includes a first guide roller group and a second guide roller group arranged sequentially in a vertical direction. The first guide roller group includes a plurality of horizontally arranged guide rollers 1, and the second guide roller group includes a plurality of horizontally arranged guide rollers 2. Two guide rollers 2 are arranged between two adjacent guide rollers 1. The cleaning assembly includes a housing, a movable spray washing assembly, and a fixed spray washing assembly. The fixed spray washing assembly is fixed inside the housing, and the movable spray washing assembly is positioned above the fixed spray washing assembly. The lifting mechanism is located inside the frame. The cleaning component is connected to the lifting mechanism for driving. Pull cables are connected to both sides of the box. Several guide wheels are provided on the frame. The pull cables pass through the guide wheels in sequence and are connected to the movable spray washing component. When the lifting mechanism drives the guide rollers of the box to rise in the second direction, the movable spray washing assembly descends in the second direction by its own weight. Several cleaning components are arranged along the aluminum foil conveying direction; It also includes a track trolley that travels on a guide rail, the track trolley including a body body, the frame and the lifting mechanism being fixed to the body body; The fixed spray washing assembly includes, in sequence along the aluminum foil conveying direction, a side spray section one, a bottom spray section one, and a side spray section two; the movable spray washing assembly includes, in sequence along the aluminum foil conveying direction, a side spray section three, a bottom spray section two, and a side spray section four. The conveying assembly includes a main beam, with a crossbeam and a vertical beam arranged on the bottom side of the main beam. A guide roller one is arranged on the crossbeam, and a guide roller two is arranged on the vertical beam. A pin hole one is opened on both sides of the box body, and a pin hole two is opened on both sides of the vertical beam. When the box body rises until the pin hole one and the pin hole two are connected, a pin shaft is inserted to lock them in place. The bottom spray section 2 has a support platform on both sides to wrap the guide roller 2. The support platform has a snap-fit ​​part, and the pin can be snapped into the snap-fit ​​part.

2. The power battery aluminum foil surface cleaning device according to claim 1, characterized in that: A recycling tank is provided in the foundation at the bottom of the vehicle body.

3. The power battery aluminum foil surface cleaning device according to claim 1, characterized in that: After each time the aluminum foil passes through guide roller 1, it is guided by two guide rollers 2 in sequence, and is wound onto guide roller 1 and guide roller 2 in sequence, respectively; the cross section of the fixed spray washing component is set in a concave opening with gradually increasing opening, and is set close to the bottom surface of the aluminum foil; the cross section of the movable spray washing component is set in a concave opening with gradually increasing opening, and is set close to the top surface of the aluminum foil.

4. The power battery aluminum foil surface cleaning device according to claim 3, characterized in that: The second side spray unit includes a water washing unit located inside the box and an air drying unit located at the top of the box; the fourth side spray unit includes a water washing unit located inside the box and an air drying unit located at the top of the box.

5. A cleaning method using the cleaning apparatus according to any one of claims 1-4, characterized in that, Includes the following steps: S1, along the aluminum foil conveying direction, is divided into a working cleaning area, a standby cleaning area and a waiting cleaning area. The working cleaning area is equipped with several cleaning components, and the standby cleaning area is equipped with at least one cleaning component. The turbidity of the cleaning liquid inside the boxes of several cleaning components along the aluminum foil conveying direction in the standby cleaning area decreases sequentially. S2, when the turbidity of the first cleaning component is lower than the standard requirement, stop the spray cleaning; at the same time, start the spray cleaning in the standby cleaning area; S3. After the first cleaning component in the working cleaning area is deactivated, the lifting mechanism is activated to control the moving spray cleaning component and the fixed spray cleaning component to move away from the conveyed aluminum foil. Then, the track trolley is activated to move the first cleaning component to the standby cleaning area, thus making it a new standby cleaning area.

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