Coating device for high-precision lithium battery processing

Abstract

The utility model discloses a coating device for high-precision lithium battery processing, and relates to the technical field of lithium battery processing, in particular to a coating device for high-precision lithium battery processing, which comprises a box body, a processing mechanism is arranged on the box body and is used for uniformly coating a substrate, the processing mechanism comprises an adjusting component, a driving component and a driving component, comprising a framework fixed in a box body, transverse frames are fixed to the front end and the rear end of the framework, gears are rotatably installed in the middles of the inner ends of the transverse frames, frames are slidably installed on the two sides of the interior of the framework, racks are fixed to the front ends and the rear ends of the frames on the two sides, and the racks on the frames on the two sides are symmetrically and reversely arranged; a first motor is mounted at the front end of the box body and used for driving the gear to rotate; the problem that the thicknesses of the coated substrates are different due to different materials and specifications of the coated substrates is solved. And due to the fixity of the distance between the coating rollers, when the distance is greater than the thickness of the substrate, the coating rollers cannot effectively contact and uniformly coat the surface of the substrate, so that the coating effect is not uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a coating device for high-precision lithium battery processing. Background Art

[0002] The coating device used in lithium battery production is one of the key equipment in the lithium battery manufacturing process. Its main function is to evenly coat the slurry on the metal foil to form the pole piece of the lithium-ion battery. The performance and accuracy of the coating device directly affect the quality of the pole piece and the performance of the battery;

[0003] According to the public announcement number: CN219965423U, a coating device for lithium battery production is disclosed. This technology discloses technical solutions such as "a frame is installed inside the shell, and a heating tube and a heat conducting plate are installed inside the frame", which has technical effects such as "when the heating tube is started, the coating surface passing through the frame downward can be dried, so as to achieve the purpose of quickly drying the liquid on the coating surface, without the need for subsequent drying, thereby improving the speed of subsequent processing";

[0004] The above scheme uses coating rollers on both sides to perform coating operations on the coating substrate. However, due to the different materials and specifications of the coating substrate, its thickness is not the same. Due to the fixed spacing between the coating rollers, when the spacing is greater than the thickness of the substrate, the coating rollers cannot effectively contact and evenly coat the surface of the substrate, resulting in uneven coating effect; and when the spacing is less than the thickness of the substrate, the coating rollers will over-exert the substrate, especially for thin or soft substrates, such over-extrusion may even cause damage to the substrate. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a high-precision coating device for lithium battery processing, which has the characteristics of being able to adjust the distance between the coating rollers on both sides to adapt to the material and specifications of the substrate.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a high-precision coating device for lithium battery processing, including a box body, the box body is provided with a processing mechanism and is used to uniformly coat the substrate, the processing mechanism includes:

[0007] The adjustment component includes a frame fixed inside the box, a cross frame is fixed at both the front and rear ends of the frame, a gear is rotatably installed at the middle of the inner end of the cross frame, frames are slidably installed on both sides of the inside of the frame, racks are fixed at both the front and rear ends of the two side frames, and the racks on the two side frames are symmetrical and arranged in opposite directions, and a first motor is installed at the front end of the box and is used to drive the gear to rotate;

[0008] A coating assembly, including a coating roller rotatably mounted on the upper end of the frame;

[0009] The guide assembly is arranged on the box body and is used for conveying and guiding the substrate.

[0010] Preferably, the coating assembly further comprises a liquid storage tank fixed at the upper end inside the frame, and the lower end of the frame is located inside the liquid storage tank.

[0011] Preferably, the coating assembly further comprises a fixed liquid inlet pipe passing through both ends of the box body, and a folding tube is connected between the liquid inlet pipe and the liquid storage tank.

[0012] Preferably, the guide assembly includes a driving roller rotatably mounted at the lower end of the frame, a second motor is mounted on the frame and is used to drive the driving roller to rotate, and guide rollers are fixed to the upper and lower ends of the box body.

[0013] Preferably, the adjustment assembly further comprises rollers installed on both the front and rear sides of the upper and lower ends of the frame, and the rollers are located inside the frame.

[0014] Preferably, fixing plates are fixed inside both ends of the frame, and a plurality of heating tubes arranged equidistantly are mounted on the fixing plates. Exhaust holes are provided at both ends of the box body, and a base is fixed at the bottom of the box body.

[0015] Beneficial Effects

[0016] The utility model provides a high-precision coating device for lithium battery processing. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The output end of the first motor drives the gear to rotate, and the gear drives the two side frames to move horizontally through the racks on both sides, thereby driving the coating rollers on the two side frames to move synchronously in the opposite direction, so that the distance between the two side coating rollers can be adjusted to match the material and specifications of the substrate.

[0018] (2) The substrate entering the box is guided by guide rollers at the upper and lower ends of the box, and the drive roller is driven to rotate by the output end of the second motor. The drive roller can drive the substrate to continuously move with the cooperation of another drive roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure inside the box body of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the processing mechanism in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the frame in the utility model.

[0023] In the figure: 1. box body; 2. processing mechanism; 21. adjustment component; 211. skeleton; 212. cross frame; 213. gear; 214. frame; 215. rack; 216. first motor; 217. roller; 22. coating component; 221. coating roller; 222. liquid storage tank; 223. folding tube; 224. liquid inlet pipe; 23. guide component; 231. driving roller; 232. second motor; 233. guide roller; 3. fixing plate; 4. heating tube; 5. exhaust hole; 6. base. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution for a high-precision coating device for lithium battery processing: a high-precision coating device for lithium battery processing, comprising a box 1, a processing mechanism 2 is arranged on the box 1 and is used to uniformly coat the substrate, the processing mechanism 2 comprises:

[0026] The adjustment assembly 21 includes a frame 211 fixed inside the box body 1, a cross frame 212 is fixed at both the front and rear ends of the frame 211, a gear 213 is rotatably installed at the middle of the inner end of the cross frame 212, frames 214 are slidably installed on both sides of the inside of the frame 211, racks 215 are fixed at both the front and rear ends of the two side frames 214, and the racks 215 on the two side frames 214 are symmetrical and arranged in opposite directions, and a first motor 216 is installed at the front end of the box body 1 and is used to drive the gear 213 to rotate;

[0027] The coating assembly 22 includes a coating roller 221 rotatably mounted on the upper end of the frame 214;

[0028] The guide assembly 23 is disposed on the box body 1 and is used to guide the substrate in conveying.

[0029] In this embodiment, the output end of the first motor 216 drives the gear 213 to rotate, and the gear 213 drives the two side frames 214 to move horizontally through the two side racks 215, thereby driving the coating rollers 221 on the two side frames 214 to move synchronously in the opposite direction, so that the distance between the two side coating rollers 221 can be adjusted to adapt to the material and specifications of the substrate.

[0030] Specifically, the coating assembly 22 further includes a liquid storage tank 222 fixed at the upper end of the frame 214 , and the lower end of the skeleton 211 is located inside the liquid storage tank 222 .

[0031] In this embodiment, the substrate being transported can drive the coating rollers 221 on both sides to roll, and at the same time, the surface of the coating roller 221 dips into the coating in the liquid storage tank 222, and the coating is evenly distributed on the coating roller 221 through continuous rolling, so that the coating is continuously coated on the substrate being transported.

[0032] Specifically, the coating assembly 22 further includes a liquid inlet pipe 224 that passes through and is fixed at both ends of the box body 1 , and a folding pipe 223 is connected between the liquid inlet pipe 224 and the liquid storage tank 222 .

[0033] In this embodiment, material can be added to the interior of the liquid storage tank 222 through the liquid inlet pipe 224 in cooperation with the folding tube 223 .

[0034] Specifically, the guide assembly 23 includes a driving roller 231 rotatably mounted at the lower end of the frame 214 , a second motor 232 is mounted on the frame 214 and is used to drive the driving roller 231 to rotate, and guide rollers 233 are fixed to the upper and lower ends of the box body 1 .

[0035] In this embodiment, the guide rollers 233 at the upper and lower ends of the box body 1 are respectively used to guide the substrate entering the box body 1, and the drive roller 231 is driven to rotate by the output end of the second motor 232. The drive roller 231 can drive the substrate to move with the cooperation of another drive roller 231.

[0036] Specifically, the adjustment component 21 further includes rollers 217 installed on both the front and rear sides of the upper and lower ends of the frame 214 , and the rollers 217 are located inside the frame 211 .

[0037] In this embodiment, when the frame 214 moves, it can drive the roller 217 to roll along the skeleton 211, thereby improving the smoothness of the frame 214 during the movement.

[0038] Specifically, fixing plates 3 are fixed inside both ends of the frame 211 , and a plurality of heating tubes 4 arranged equidistantly are mounted on the fixing plates 3 . Exhaust holes 5 are provided at both ends of the box body 1 , and a base 6 is fixed at the bottom of the box body 1 .

[0039] In this embodiment, the coated substrate can be dried by the heating tubes 4 on the fixed plates 3 at both ends, and a fan is connected through the exhaust holes 5 to keep air flowing inside the box 1, accelerate the drying efficiency, and discharge odor.

[0040] The working principle and use process of the utility model are as follows: first, the guide rollers 233 at the upper and lower ends of the box body 1 are used to guide the substrate entering the box body 1 respectively, and the output end of the second motor 232 drives the driving roller 231 to rotate, and the driving roller 231 can drive the substrate to move with the cooperation of another driving roller 231;

[0041] Then, the output end of the first motor 216 drives the gear 213 to rotate, and the gear 213 drives the two side frames 214 to move horizontally through the two side racks 215, thereby driving the coating rollers 221 on the two side frames 214 to move synchronously in the opposite direction, so that the distance between the two side coating rollers 221 can be adjusted to match the material and specifications of the substrate;

[0042] At the same time, the substrate being fed can drive the coating rollers 221 on both sides to roll, and the surface of the coating roller 221 dips into the coating in the liquid storage tank 222, and the coating is evenly distributed on the coating roller 221 by continuous rolling, so that the coating is continuously coated on the substrate being fed; and the coated substrate is dried by the heating tubes 4 on the fixed plates 3 at both ends, and a fan is connected through the exhaust hole 5 to keep air flowing inside the box 1, thereby accelerating the drying efficiency and exhausting odor.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision coating device for lithium battery processing, comprising a housing (1), characterized in that: The box (1) is provided with a processing mechanism (2) for uniformly coating the substrate, and the processing mechanism (2) comprises: The adjustment component (21) comprises a frame (211) fixed inside the box (1), a cross frame (212) fixed at both the front and rear ends of the frame (211), a gear (213) rotatably mounted at the middle of the inner end of the cross frame (212), frames (214) slidably mounted on both sides of the inside of the frame (211), racks (215) fixed at both the front and rear ends of the two side frames (214), and the racks (215) on the two side frames (214) are symmetrical and arranged in opposite directions, and a first motor (216) is mounted at the front end of the box (1) and is used to drive the gear (213) to rotate; A coating assembly (22), comprising a coating roller (221) rotatably mounted on the upper end of the frame (214); The guide assembly (23) is arranged on the box body (1) and is used to guide the conveyance of the substrate.

2. A high-precision coating device for lithium battery processing according to claim 1, characterized in that: The coating assembly (22) further comprises a liquid storage tank (222) fixed at the upper end inside the frame (214), and the lower end of the frame (211) is located inside the liquid storage tank (222).

3. A high-precision coating device for lithium battery processing according to claim 2, characterized in that: The coating assembly (22) further comprises a liquid inlet pipe (224) which passes through and is fixed at both ends of the box body (1), and a folding pipe (223) is connected between the liquid inlet pipe (224) and the liquid storage tank (222).

4. A high-precision coating device for lithium battery processing according to claim 1, characterized in that: The guide assembly (23) comprises a driving roller (231) rotatably mounted at the lower end of the frame (214); a second motor (232) is mounted on the frame (214) and is used to drive the driving roller (231) to rotate; and guide rollers (233) are fixed to the upper and lower ends of the box body (1).

5. A high-precision coating device for lithium battery processing according to claim 4, characterized in that: The adjustment component (21) further comprises rollers (217) installed on both the front and rear sides of the upper and lower ends of the frame (214), and the rollers (217) are located inside the frame (211).

6. A high-precision coating device for lithium battery processing according to claim 1, characterized in that: A fixing plate (3) is fixed inside both ends of the frame (211), and a plurality of heating tubes (4) arranged at equal distances are mounted on the fixing plate (3). Exhaust holes (5) are provided at both ends of the box body (1), and a base (6) is fixed at the bottom of the box body (1).

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