Double-sided simultaneous micro-concave coating device

Abstract

The utility model relates to the technical field of lithium battery coating equipment, and discloses a double-sided simultaneous micro-concave coating device, which comprises a first micro-concave coating component, a second micro-concave coating component, a third micro-concave coating component and a third micro-concave coating component, wherein the first micro-concave coating component is used for carrying out micro-concave coating on a first surface of a pole piece; the first dispensing assembly is used for dispensing the first surface of the pole piece; the second micro-concave coating assembly is used for carrying out micro-concave coating on the second surface of the pole piece; the second dispensing assembly is used for dispensing the second surface of the pole piece; and the drying oven is used for drying the pole piece. According to the double-sided simultaneous micro-concave coating device, double-sided coating of a pole piece is completed at the same time, all the steps of the whole coating process are closely connected, the connection time loss between the working procedures is reduced, full-automatic operation without excessive manual intervention is achieved through reasonable equipment design and an automatic control system, and the working efficiency is improved. The production efficiency and the coating quality are greatly improved, errors and uncertainty caused by manual operation are reduced, and meanwhile the stability and the consistency of pole piece coating are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of lithium battery coating equipment, specifically relating to a double-sided simultaneous micro-concave coating device. Background Technology

[0002] The current electrode undercoating method involves two steps. First, the undercoating slurry is applied to one side of the electrode sheet, followed by drying. Then, the second side of the electrode sheet is coated. This method is common in lithium battery electrode production. For example, the prepared undercoating slurry is evenly applied to one side of the electrode sheet, and then the solvent and other components in the slurry are removed using drying equipment to allow it to dry and solidify. Then, the same process is repeated to coat the other side.

[0003] However, existing electrode undercoating processes involve two steps: coating and drying. This means that separate equipment is required to complete these two steps, and sufficient space must be allocated for this equipment, as well as for material handling and operations. This results in the entire electrode undercoating operation requiring a larger factory space, increasing the company's site costs. Furthermore, the increased number and complexity of equipment also raises the purchase and maintenance costs. In addition, each coated side requires a drying process, which consumes a significant amount of heat energy.

[0004] Therefore, existing electrode undercoating methods suffer from problems such as high energy consumption and high equipment costs. Utility Model Content

[0005] To address the problems of high energy consumption and high equipment cost in existing electrode substrate coating methods, this invention provides a double-sided simultaneous micro-concave coating device.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0007] According to one aspect of the present invention, a dual-sided simultaneous micro-recessed coating apparatus is provided, comprising:

[0008] The first micro-recessed coating assembly is used to perform micro-recessed coating on the first surface of the electrode.

[0009] The first dispensing assembly is used to dispense adhesive onto the first surface of the electrode sheet;

[0010] The second micro-recessed coating assembly is used to perform micro-recessed coating on the second surface of the electrode.

[0011] The second dispensing assembly is used to dispense adhesive onto the second surface of the electrode sheet; and

[0012] An oven is used to dry the electrode sheets.

[0013] In some alternative implementations, the first microgravure coating assembly includes a first main roller assembly, a proximity roller assembly, and a first doctor blade assembly. The proximity roller assembly is arranged parallel to the first main roller assembly. The proximity roller assembly approaches or moves away from the first main roller assembly under the drive of a first drive assembly. The first doctor blade assembly is arranged parallel to the first main roller assembly. The first doctor blade assembly approaches or moves away from the first main roller assembly under the drive of a second drive assembly.

[0014] And / or, the second microgravure coating assembly includes a second main roller assembly and a second doctor blade assembly, the second doctor blade assembly being arranged parallel to the second main roller assembly, and the second doctor blade assembly being driven by a third drive assembly to move closer to or further away from the second main roller assembly.

[0015] In some alternative implementations, the first micro-groove coating assembly further includes a first feed trough assembly, which is disposed below and parallel to the first main roller assembly, and the first feed trough assembly moves closer to or away from the first main roller assembly under the drive of the fourth drive assembly.

[0016] And / or, the second micro-groove coating assembly further includes a second feed trough assembly, which is disposed below the second main roller assembly and parallel to the second main roller assembly, and the second feed trough assembly is driven by the fifth drive assembly to move closer to or further away from the second main roller assembly.

[0017] In some alternative implementations, the first dispensing assembly includes a first concave roller assembly, a third doctor blade assembly, and a sixth drive assembly. The third doctor blade assembly is mounted on a mounting bracket and is arranged parallel to the first concave roller assembly. The third doctor blade assembly is driven by a seventh drive assembly to move closer to or away from the first concave roller assembly, and the mounting bracket is driven by the sixth drive assembly to move closer to or away from the electrode.

[0018] And / or, the second dispensing assembly includes a second concave roller assembly and a fourth doctor blade assembly, the fourth doctor blade assembly being arranged parallel to the second concave roller assembly, the fourth doctor blade assembly being driven by an eighth drive assembly to move closer to or further away from the second concave roller assembly.

[0019] In some alternative implementations, the first concave roller assembly includes a first central roller and a plurality of first concave sleeves, the plurality of first concave sleeves being sleeved on the first central roller and arranged parallel to the radial direction of the first central roller.

[0020] The third scraper assembly includes a plurality of first scrapers, each of which is disposed opposite to a first gravure sleeve.

[0021] In some alternative implementations, the second concave roller assembly includes a second central roller and a plurality of second concave sleeves, the plurality of second concave sleeves being sleeved on the second central roller and arranged parallel to the radial direction of the second central roller;

[0022] The fourth scraper assembly includes a plurality of second scrapers, each of which is disposed opposite to a second gravure sleeve.

[0023] In some alternative implementations, the first dispensing assembly further includes a third feed trough assembly disposed below the first concave roller assembly;

[0024] And / or, the second dispensing assembly further includes a fourth feed trough assembly disposed below the second concave roller assembly.

[0025] In some alternative implementations, a first air flotation component is also included, which is disposed between the second micro-groove coating component and the second dispensing component;

[0026] The first air flotation assembly includes a first air flotation plate, a second air flotation plate, and a first adjustment component. The first air flotation plate and the second air flotation plate are arranged opposite to each other and in parallel. The first adjustment component is connected to the first air flotation plate and / or the second air flotation plate respectively to adjust the distance between the first air flotation plate and the second air flotation plate.

[0027] In some alternative implementations, a second air flotation component is also included, which is disposed between the second dispensing component and the oven;

[0028] The second air flotation assembly includes a third air flotation plate, a fourth air flotation plate, and a second adjustment assembly. The third air flotation plate and the fourth air flotation plate are arranged opposite to each other and in parallel. The second adjustment assembly is connected to the third air flotation plate and / or the fourth air flotation plate respectively to adjust the distance between the third air flotation plate and the fourth air flotation plate.

[0029] In some alternative implementations, a first adjusting roller assembly is also included, which is disposed at the input end of the first micro-grooving coating assembly to adjust the direction and wrap angle of the electrode entering the first micro-grooving coating assembly.

[0030] And / or, it also includes a second adjusting roller assembly disposed between the first micro-grooving coating assembly and the first dispensing assembly to adjust the direction and wrap angle of the electrode sheet entering the first dispensing assembly;

[0031] And / or, it also includes a third adjusting roller assembly disposed between the first dispensing assembly and the second micro-grooving coating assembly to adjust the direction and wrap angle of the electrode sheet entering the second micro-grooving coating assembly.

[0032] In summary, this utility model has at least the following advantages:

[0033] The double-sided simultaneous micro-grooving coating device provided by this utility model sequentially completes a series of processes, including micro-grooving coating on the first side of the electrode, dispensing adhesive on the first side of the electrode, micro-grooving coating on the second side of the electrode, dispensing adhesive on the second side of the electrode, and drying. This achieves simultaneous double-sided coating of the electrode, and the steps of the entire coating process are closely connected, reducing the time loss between processes. Through reasonable equipment design and automated control system, fully automatic operation without much human intervention is achieved, which greatly improves production efficiency and coating quality, reduces errors and uncertainties caused by manual operation, and ensures the stability and consistency of electrode coating. Attached Figure Description

[0034] Figure 1 A side view of a dual-sided simultaneous micro-concave coating device provided for an embodiment of this utility model.

[0035] Figure 2 This is a schematic diagram of a dual-sided simultaneous micro-concave coating device provided for an embodiment of the present invention.

[0036] Figure 3 A side view of the first micro-grooving component of a dual-sided simultaneous micro-grooving coating apparatus provided in an embodiment of this utility model.

[0037] Figure 4 This is a schematic diagram of the first angle structure of the first micro-dip coating component of a dual-sided simultaneous micro-dip coating device provided in an embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the second angle structure of the first micro-grooving component of a dual-sided simultaneous micro-grooving coating device provided in an embodiment of the present invention.

[0039] Figure 6 A side view of the second micro-grooving component of a dual-sided simultaneous micro-grooving coating apparatus provided in an embodiment of this utility model.

[0040] Figure 7 This is a schematic diagram of the structure of the second micro-grooving component of a dual-sided simultaneous micro-grooving coating device provided in an embodiment of the present invention.

[0041] Figure 8 This is a side view of the first dispensing component of a dual-sided simultaneous micro-concave coating device provided in an embodiment of the present invention.

[0042] Figure 9 This is a schematic diagram of the structure of the first dispensing component of a double-sided simultaneous micro-concave coating device provided in an embodiment of the present invention.

[0043] Figure 10 This is a schematic diagram of the structure of the second dispensing component of a double-sided simultaneous micro-concave coating device provided in an embodiment of the present invention.

[0044] Figure 11 This is a schematic diagram of the structure of the first air flotation component of a dual-sided simultaneous micro-concave coating device provided in an embodiment of the present invention.

[0045] Marked in the image:

[0046] 10. First micro-grooving coating assembly;

[0047] 101. First main roller assembly; 102. Approach roller assembly; 103. First scraper assembly; 104. First drive assembly;

[0048] 105. Second drive assembly; 1051. First drive unit; 1052. Second drive unit; 1053. Lead screw assembly; 1054. Slide rail assembly;

[0049] 106. First feed trough assembly; 107. Fourth drive assembly;

[0050] 20. First dispensing assembly;

[0051] 201. First concave roller assembly; 2011. First center roller; 2012. First gravure sleeve;

[0052] 202. Third scraper assembly; 2021. First scraper; 2022. First drive cylinder;

[0053] 203. Mounting bracket; 204. Seventh drive assembly; 205. Sixth drive assembly; 206. Third feed trough assembly; 207. First slide bar;

[0054] 30. Second micro-grooving coating assembly;

[0055] 301. Second main roller assembly; 302. Second scraper assembly; 303. Third drive assembly;

[0056] 40. Second dispensing assembly;

[0057] 401. Second concave roller assembly; 4011. Second center roller; 4012. Second gravure sleeve 4012;

[0058] 402. Fourth scraper assembly; 4021. Second scraper; 4022. Second drive cylinder;

[0059] 404. Eighth drive component; 407. Second slider;

[0060] 50. First air flotation component; 501. First air flotation plate; 502. Second air flotation plate; 503. First adjustment component;

[0061] 60. Second air flotation component;

[0062] 71. First adjusting roller assembly; 72. Second adjusting roller assembly; 73. Third adjusting roller assembly;

[0063] 100. Rack;

[0064] 200, Electrode; Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0066] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0067] To address the problems of high energy consumption and high equipment cost in existing electrode substrate coating methods, this invention provides a double-sided simultaneous micro-concave coating device.

[0068] In this embodiment, the dual-sided simultaneous micro-concave coating device, such as Figure 1-2 As shown, the assembly includes: a first micro-grooving coating assembly 10, a first dispensing assembly 20, a second micro-grooving coating assembly 30, a second dispensing assembly 40, and an oven. The first micro-grooving coating assembly 10 is used to perform micro-grooving coating on the first surface of the electrode 200; the first dispensing assembly 20 is used to dispense adhesive onto the first surface of the electrode 200; the second micro-grooving coating assembly 30 is used to perform micro-grooving coating on the second surface of the electrode 200; the second dispensing assembly 40 is used to dispense adhesive onto the second surface of the electrode 200; and the oven is used to dry the electrode 200.

[0069] In this embodiment, the dual-sided simultaneous micro-grooving coating apparatus further includes a frame 100, a first micro-grooving coating assembly 10, a first dispensing assembly 20, a second micro-grooving coating assembly 30, and a second dispensing assembly 40 mounted on the frame 100, and an oven disposed on one side of the frame 100. The first micro-grooving coating assembly 10, the first dispensing assembly 20, the second micro-grooving coating assembly 30, the second dispensing assembly 40, and the oven are arranged sequentially along the transport direction of the electrode sheet 200.

[0070] Therefore, the double-sided simultaneous micro-grooving coating apparatus provided in this embodiment sequentially completes a series of processes during the transfer of the electrode 200, including micro-grooving coating on the first side of the electrode 200, dispensing adhesive on the first side of the electrode 200 after the micro-grooving coating process, micro-grooving coating on the second side of the electrode 200 after the dispensing adhesive process, dispensing adhesive on the second side of the electrode 200 after the micro-grooving coating process, and drying the electrode 200 after the dispensing adhesive process. This enables the electrode 200 to complete both double-sided coating and dispensing simultaneously during the transfer process. Moreover, the steps of the entire coating process are closely connected, reducing the time loss between processes. Through reasonable equipment design and automated control system, fully automatic operation without excessive human intervention is achieved, greatly improving the production efficiency and coating quality of the electrode 200, reducing the errors and uncertainties caused by manual operation, and ensuring the stability and consistency of the electrode 200 coating.

[0071] This embodiment is a preferred embodiment, and the specific structure of the first micro-recessed coating component 10 has been optimized.

[0072] like Figure 3-5 As shown, the first microgravure coating assembly 10 includes a first main roller assembly 101, a proximity roller assembly 102, and a first doctor blade assembly 103. The proximity roller assembly 102 is arranged parallel to the first main roller assembly 101. Under the drive of the first drive assembly 104, the proximity roller assembly 102 approaches or moves away from the first main roller assembly 101. The first doctor blade assembly 103 is arranged parallel to the first main roller assembly 101. Under the drive of the second drive assembly 105, the first doctor blade assembly 103 approaches or moves away from the first main roller assembly 101.

[0073] In this embodiment, the main roller of the first main roller assembly 101 is a micro-concave roller, which rotates along the transmission direction of the electrode 200 and completes the micro-concave coating process on the first surface of the electrode 200 in contact with it during the rotation process. The first main roller assembly 101 can be replaced with a main roller of different processing widths according to the electrode 200 of different sizes.

[0074] The electrode 200 passes between the first main roller assembly 101 and the approach roller assembly 102. The approach roller assembly 102 mainly includes two approach rollers arranged parallel to the first main roller assembly 101. There is a certain gap between the two approach rollers and the first main roller assembly 101, and a certain angle is formed between the approach rollers and the first main roller assembly 101.

[0075] Furthermore, during operation of the first gravure coating assembly 10, the drive proximity roller assembly 102 of the first drive assembly 104 approaches the first main roller assembly 101, causing the two proximity rollers of the proximity roller assembly 102 to contact the second surface of the electrode 200, thereby limiting the electrode 200. When the first gravure coating assembly 10 is not operating, the drive proximity roller assembly 102 of the first drive assembly 104 moves away from the first main roller assembly 101.

[0076] The first drive component 104 is a cylinder.

[0077] In this embodiment, the first doctor blade assembly 103 mainly includes a doctor blade, which is used to adjust the thickness of the micro-gravure coating of the first main roller assembly 101.

[0078] The second drive assembly 105 that drives the first scraper assembly 103 includes at least a first drive part 1051 and a second drive part 1052. The first drive part 1051 is connected to the first scraper assembly 103 to drive the first scraper assembly 103 to move in the horizontal direction or to drive the first scraper assembly 103 to rotate, so as to adjust the horizontal distance between the end of the first scraper assembly 103 and the first main roller assembly 101. The second drive part 1052 is connected to the mounting plate on which the first drive part 1051 is mounted, so as to drive the mounting plate to drive the first scraper assembly 103 to move in the vertical direction, so as to adjust the vertical distance between the first scraper assembly 103 and the first main roller assembly 101.

[0079] Therefore, the linear distance between the first doctor blade assembly 103 and the first main roller assembly 101 can be adjusted by the first drive unit 1051 and the second drive unit 1052, thereby adjusting the thickness of the first main roller assembly 101 to complete the micro-gravure coating.

[0080] When the second drive unit 1052 completes the vertical position adjustment of the first scraper assembly 103, it uses the lead screw assembly 1053 and the slide rail assembly 1054 to drive the first scraper assembly 103 to move vertically through the mounting plate.

[0081] Specifically, the second drive unit 1052 is connected to the lead screw assembly 1053. During the rotation of the lead screw assembly 1053, the mounting plate drives the first scraper assembly 103 to move vertically through the slide rail assembly 1054.

[0082] In this preferred embodiment, the first micro-groove coating assembly 10 further includes a first feed trough assembly 106. The first feed trough assembly 106 is disposed below the first main roller assembly 101 and is arranged parallel to the first main roller assembly 101. The first feed trough assembly 106 is driven by the fourth drive assembly 107 to move closer to or away from the first main roller assembly 101.

[0083] In this embodiment, the first feed trough assembly 106 contains slurry, which moves closer to or further away from the first main roller assembly 101 depending on the working state of the first micro-groove coating assembly 10.

[0084] In addition, in this embodiment, the first drive unit 1051 is a cylinder, the second drive unit 1052 is a motor, and the fourth drive assembly 107 is a cylinder.

[0085] This embodiment is a preferred embodiment, and the specific structure of the second micro-recessed coating component 30 has been optimized.

[0086] like Figure 6-7 As shown, the second micro-grooving coating assembly 30 includes a second main roller assembly 301 and a second doctor blade assembly 302. The second doctor blade assembly 302 is arranged parallel to the second main roller assembly 301. The second doctor blade assembly 302 moves closer to or further away from the second main roller assembly 301 under the drive of the third drive assembly 303.

[0087] The second micro-gravure coating assembly 30 also includes a second feed trough assembly 304, which is disposed below the second main roller assembly 301 and parallel to the second main roller assembly 301. The second feed trough assembly 304 is driven by the fifth drive assembly to move closer to or further away from the second main roller assembly 301.

[0088] In this embodiment, the second micro-grooving coating assembly 30 is used to perform micro-grooving coating on the second surface of the electrode 200. Therefore, the specific structures of the second main roller assembly 301, the second doctor blade assembly 302, and the third drive assembly 303 that drives the second doctor blade assembly 302 are the same as those of the first main roller assembly 101, the first doctor blade assembly 103, and the second drive assembly 105. This embodiment will not repeat the description.

[0089] Furthermore, the second material tank assembly 304 and the fifth driving assembly that drives the second material tank assembly 304 in the second micro-gravure coating assembly 30 have the same structure as the first material tank assembly 106 and the fourth driving assembly 107 that drives the first material tank assembly 106 in the first micro-gravure coating assembly 10, and will not be described again in this embodiment.

[0090] This embodiment is a preferred embodiment, and the specific structure of the first dispensing assembly 20 has been optimized.

[0091] like Figure 8-9As shown, the first dispensing assembly 20 includes a first concave roller assembly 201, a third doctor blade assembly 202, and a sixth drive assembly 205. The third doctor blade assembly 202 is mounted on the mounting bracket 203 and is arranged parallel to the first concave roller assembly 201. The third doctor blade assembly 202 moves closer to or away from the first concave roller assembly 201 under the drive of the seventh drive assembly 204. The mounting bracket 203 moves closer to or away from the electrode 200 under the drive of the sixth drive assembly 205.

[0092] The first gravure roller assembly 201 includes a first central roller 2011 and a plurality of first gravure sleeves 2012. The plurality of first gravure sleeves 2012 are sleeved on the first central roller 2011 and arranged parallel to the radial direction of the first central roller 2011, and the spacing between two adjacent first gravure sleeves 2012 is adjustable.

[0093] The third scraper assembly 202 includes a plurality of first scrapers 2021, each of which is disposed opposite to a first gravure sleeve 2012.

[0094] In addition, the third scraper assembly 202 also includes a first drive cylinder 2022 connected to the first scraper 2021 to drive the first scraper 2021 to rotate, thereby causing the first scraper 2021 to move closer to or further away from the first concave roller assembly 201.

[0095] A first slide bar 207 parallel to the first concave roller assembly 201 is provided along the axial direction of the first concave roller assembly 201. A first drive cylinder 2022 is movably mounted on the first slide bar 207 to adjust the distance between two adjacent first scrapers 2021 according to the distance between two adjacent first concave sleeves 2012.

[0096] The seventh drive assembly 204 is connected to the third scraper assembly 202 and drives the third scraper assembly 202 to move in the horizontal direction, thereby adjusting the horizontal distance between the third scraper assembly 202 and the first concave roller assembly 201.

[0097] The sixth drive assembly 205 is connected to the mounting bracket 203, and drives the mounting bracket 203 to move the third scraper assembly 202 in the vertical direction, thereby adjusting the vertical distance between the third scraper assembly 202 and the first concave roller assembly 201.

[0098] Therefore, the straight-line distance between the third scraper assembly 202 and the first concave roller assembly 201 can be adjusted by the seventh drive assembly 204 and the sixth drive assembly 205, thereby adjusting the thickness of the first concave roller assembly 201 to complete the dispensing.

[0099] The seventh drive assembly 204 uses a cylinder, and the sixth drive assembly 205 uses a drive motor. The specific movement process of the sixth drive assembly 205 driving the third scraper assembly 202 in the vertical direction is described in the process of the second drive part 1052 of the first micro-coating assembly 10 driving the first scraper assembly 103 in the vertical direction. This embodiment will not repeat the description.

[0100] In addition, the first dispensing assembly 20 in this embodiment also includes a third material trough assembly 206, which is disposed below the first concave roller assembly 201.

[0101] The third feed trough assembly 206 is used to hold GIC adhesive, and the first concave roller assembly 201 is used to apply GIC adhesive to the first surface of the electrode 200.

[0102] The third feed trough assembly 206 also moves vertically via a cylinder assembly to adjust the distance between it and the first concave roller assembly 201.

[0103] This embodiment is a preferred embodiment, and the specific structure of the second dispensing assembly 40 has been optimized.

[0104] Specifically, such as Figure 10 As shown, the second dispensing assembly 40 includes a second concave roller assembly 401 and a fourth doctor blade assembly 402. The fourth doctor blade assembly 402 is arranged parallel to the second concave roller assembly 401. The fourth doctor blade assembly 402 moves closer to or further away from the second concave roller assembly 401 under the drive of the eighth drive assembly 404.

[0105] The second gravure roller assembly 401 includes a second central roller 4011 and a plurality of second gravure sleeves 4012. The plurality of second gravure sleeves 4012 are sleeved on the second central roller 4011 and arranged parallel to the radial direction of the second central roller 4011, and the spacing between two adjacent second gravure sleeves 4012 is adjustable.

[0106] The fourth scraper assembly 402 includes a plurality of second scrapers 4021, each of which is disposed opposite to a second gravure sleeve 4012.

[0107] In addition, the fourth scraper assembly 402 also includes a second drive cylinder 4022 connected to the second scraper 4021 to drive the second scraper 4021 to rotate, thereby causing the second scraper 4021 to move closer to or further away from the second concave roller assembly 401.

[0108] A second slide bar 407 parallel to the second concave roller assembly 401 is provided along the axial direction of the second concave roller assembly 401. The second drive cylinder 4022 is movably mounted on the second slide bar 407 to adjust the distance between the two adjacent second scrapers 4021 according to the distance between the two adjacent second concave sleeves 4012.

[0109] The eighth drive assembly 404 is connected to the fourth scraper assembly 402 and drives the fourth scraper assembly 402 to move in the horizontal direction, thereby adjusting the horizontal distance between the fourth scraper assembly 402 and the second concave roller assembly 401.

[0110] In addition, the second dispensing assembly 40 in this embodiment also includes a fourth material trough assembly, which is disposed below the second concave roller assembly 401.

[0111] The fourth feed trough assembly is used to hold GIC adhesive, and the second concave roller assembly 401 is used to apply GIC adhesive to the second surface of the electrode 200.

[0112] The fourth feed trough assembly also moves vertically via a cylinder assembly to adjust the distance between it and the second concave roller assembly 401.

[0113] In this preferred embodiment, the dual-sided simultaneous micro-grooving coating device further includes a first air flotation component 50 and a second air flotation component 60. The first air flotation component 50 is disposed between the second micro-grooving coating component 30 and the second dispensing component 40, and the second air flotation component 60 is disposed between the second dispensing component 40 and the oven.

[0114] Specifically, such as Figure 11 As shown, the first air flotation assembly 50 includes a first air flotation plate 501, a second air flotation plate 502, and a first adjustment assembly 503. The first air flotation plate 501 and the second air flotation plate 502 are arranged opposite to each other and in parallel. The first adjustment assembly 503 is connected to the first air flotation plate 501 and / or the second air flotation plate 502 respectively to adjust the distance between the first air flotation plate 501 and the second air flotation plate 502.

[0115] In addition, the first adjustment component 503 can also adjust the relative angle between the first air flotation plate 501 and the second air flotation plate 502 so that the electrode 200 passing between the first air flotation plate 501 and the second air flotation plate 502 remains stable and is always located in the middle position between the first air flotation plate 501 and the second air flotation plate 502 without contacting the first air flotation plate 501 and the second air flotation plate 502.

[0116] Preferably, the first adjustment component 503 is a rotary cylinder that can drive the first air flotation plate 501 and / or the second air flotation plate 502 to rotate, thereby adjusting the distance and relative angle between the first air flotation plate 501 and the second air flotation plate 502.

[0117] The second air flotation assembly 60 includes a third air flotation plate, a fourth air flotation plate, and a second adjustment assembly. The third and fourth air flotation plates are arranged opposite to each other and parallel to each other. The second adjustment assembly is connected to the third and / or fourth air flotation plates respectively to adjust the spacing between the third and fourth air flotation plates. This ensures that the electrode 200 passing between the third and fourth air flotation plates remains stable and always located in the middle position between the third and fourth air flotation plates without contacting them.

[0118] The second adjustment component can be a linear cylinder or a rotary cylinder, depending on the requirements, to adjust the distance and / or relative angle between the third and fourth air flotation plates.

[0119] After passing through the second air flotation component 60, the electrode 200 enters the drying oven to complete the full-floating heating and drying process.

[0120] As a preferred embodiment, the dual-sided simultaneous micro-grooving coating apparatus further includes a first adjusting roller assembly 71, a second adjusting roller assembly 72, and a third adjusting roller assembly 73.

[0121] The first adjusting roller assembly 71 is disposed at the input end of the first gravure coating assembly 10 to adjust the direction and wrap angle of the electrode 200 entering the first gravure coating assembly 10; the second adjusting roller assembly 72 is disposed between the first gravure coating assembly 10 and the first dispensing assembly 20 to adjust the direction and wrap angle of the electrode 200 entering the first dispensing assembly 20; and the third adjusting roller assembly 73 is disposed between the first dispensing assembly 20 and the second gravure coating assembly 30 to adjust the direction and wrap angle of the electrode 200 entering the second gravure coating assembly 30.

[0122] The first adjusting roller assembly 71, the second adjusting roller assembly 72, and the third adjusting roller assembly 73 provided in this embodiment enable the adjustment of the traveling direction and angle of the electrode 200 during the processing of the electrode sheet 200, thereby ensuring the stability and processing quality of the electrode sheet 200 in the next processing step.

[0123] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0124] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0125] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0126] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0127] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A device for simultaneous double-sided micro-concave coating, characterized in that, include: The first micro-recessed coating assembly (10) is used to perform micro-recessed coating on the first surface of the electrode (200); The first dispensing assembly (20) is used to dispense adhesive onto the first surface of the electrode (200); The second micro-recessed coating assembly (30) is used to perform micro-recessed coating on the second surface of the electrode (200); The second dispensing assembly (40) is used to dispense adhesive onto the second surface of the electrode sheet (200); as well as An oven is used to dry the electrode sheet (200).

2. The double-sided simultaneous micro-concave coating device according to claim 1, characterized in that, The first micro-grooving coating assembly (10) includes a first main roller assembly (101), a proximity roller assembly (102), and a first doctor blade assembly (103). The proximity roller assembly (102) is arranged parallel to the first main roller assembly (101). The proximity roller assembly (102) approaches or moves away from the first main roller assembly (101) under the drive of the first drive assembly (104). The first doctor blade assembly (103) is arranged parallel to the first main roller assembly (101). The first doctor blade assembly (103) approaches or moves away from the first main roller assembly (101) under the drive of the second drive assembly (105). And / or, the second microgravure coating assembly (30) includes a second main roller assembly (301) and a second doctor blade assembly (302), the second doctor blade assembly (302) being arranged parallel to the second main roller assembly (301), and the second doctor blade assembly (302) being driven by a third drive assembly (303) to move closer to or further away from the second main roller assembly (301).

3. The double-sided simultaneous micro-concave coating apparatus according to claim 2, characterized in that, The first micro-groove coating assembly (10) further includes a first feed trough assembly (106), which is disposed below the first main roller assembly (101) and parallel to the first main roller assembly (101). The first feed trough assembly (106) moves closer to or further away from the first main roller assembly (101) under the drive of the fourth drive assembly (107). And / or, the second microgravure coating assembly (30) further includes a second feed trough assembly (304), which is disposed below the second main roller assembly (301) and parallel to the second main roller assembly (301), and the second feed trough assembly (304) is driven by the fifth drive assembly to move closer to or further away from the second main roller assembly (301).

4. The double-sided simultaneous micro-concave coating apparatus according to claim 1, characterized in that, The first dispensing assembly (20) includes a first concave roller assembly (201), a third doctor blade assembly (202), and a sixth drive assembly (205). The third doctor blade assembly (202) is mounted on a mounting bracket (203) and is arranged parallel to the first concave roller assembly (201). The third doctor blade assembly (202) moves closer to or away from the first concave roller assembly (201) under the drive of the seventh drive assembly (204). The mounting bracket (203) moves closer to or away from the electrode sheet (200) under the drive of the sixth drive assembly (205). And / or, the second dispensing assembly (40) includes a second concave roller assembly (401) and a fourth doctor blade assembly (402), the fourth doctor blade assembly (402) being arranged parallel to the second concave roller assembly (401), the fourth doctor blade assembly (402) being driven by an eighth drive assembly (404) to approach or move away from the second concave roller assembly (401).

5. The double-sided simultaneous micro-concave coating apparatus according to claim 4, characterized in that, The first concave roller assembly (201) includes a first central roller (2011) and a plurality of first gravure sleeves (2012), wherein the plurality of first gravure sleeves (2012) are sleeved on the first central roller (2011) and arranged parallel to the radial direction of the first central roller (2011); The third scraper assembly (202) includes a plurality of first scrapers (2021), each of the first scrapers (2021) being disposed opposite to a first intaglio sleeve (2012).

6. The double-sided simultaneous micro-concave coating apparatus according to claim 4, characterized in that, The second concave roller assembly (401) includes a second central roller (4011) and a plurality of second gravure sleeves (4012), the plurality of second gravure sleeves (4012) being sleeved on the second central roller (4011) and arranged parallel to the radial direction of the second central roller (4011); The fourth scraper assembly (402) includes a plurality of second scrapers (4021), each of the second scrapers (4021) being disposed opposite to a second gravure sleeve (4012).

7. The double-sided simultaneous micro-concave coating apparatus according to claim 4, characterized in that, The first dispensing assembly (20) further includes a third feed trough assembly (206), which is disposed below the first concave roller assembly (201); And / or, the second dispensing assembly (40) further includes a fourth feed trough assembly disposed below the second concave roller assembly (401).

8. The double-sided simultaneous micro-concave coating apparatus according to claim 1, characterized in that, It also includes a first air flotation component (50), which is disposed between the second micro-groove coating component (30) and the second dispensing component (40); The first air flotation assembly (50) includes a first air flotation plate (501), a second air flotation plate (502), and a first adjustment assembly (503). The first air flotation plate (501) and the second air flotation plate (502) are arranged opposite to each other and in parallel. The first adjustment assembly (503) is connected to the first air flotation plate (501) and / or the second air flotation plate (502) respectively to adjust the distance between the first air flotation plate (501) and the second air flotation plate (502).

9. The double-sided simultaneous micro-concave coating apparatus according to claim 1, characterized in that, It also includes a second air flotation component (60), which is disposed between the second dispensing component (40) and the oven; The second air flotation assembly (60) includes a third air flotation plate, a fourth air flotation plate, and a second adjustment assembly. The third air flotation plate and the fourth air flotation plate are arranged opposite to each other and in parallel. The second adjustment assembly is connected to the third air flotation plate and / or the fourth air flotation plate respectively to adjust the distance between the third air flotation plate and the fourth air flotation plate.

10. The double-sided simultaneous micro-concave coating apparatus according to claim 1, characterized in that, It also includes a first adjusting roller assembly (71), which is disposed at the input end of the first micro-grooving coating assembly (10) to adjust the direction and wrap angle of the electrode (200) entering the first micro-grooving coating assembly (10); And / or, it also includes a second adjusting roller assembly (72), which is disposed between the first micro-grooving coating assembly (10) and the first dispensing assembly (20) to adjust the direction and wrap angle of the electrode (200) entering the first dispensing assembly (20); And / or, it also includes a third adjusting roller assembly (73) disposed between the first dispensing assembly (20) and the second micro-groove coating assembly (30) to adjust the direction and wrap angle of the electrode (200) entering the second micro-groove coating assembly (30).

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