Positive and negative electrode coating device for lithium battery cell production

Abstract

The utility model provides a positive and negative pole coating device for lithium battery cell production, which relates to the technical field of lithium battery processing, and comprises a coating frame plate and a positive and negative pole coating mechanism, the positive and negative pole coating mechanism is arranged on the upper side of the coating frame plate, and through the arrangement of the positive and negative pole coating mechanism, when the positive and negative pole coating mechanism is needed, a coating pump extrudes a coating through a coating spray knife; paint can be directly smeared on a coating surface, the thickness of the paint can be finely adjusted according to the height of the paint spraying knife, meanwhile, due to the fact that the paint spraying knife conducts integrated smearing, the integrated smoothness of smearing can be guaranteed, the semi-dry coating smeared with the paint enters the air cooling device, and cold air generated through the air cooling device can be used for cooling the semi-dry coating in the air cooling device. The temperature of the surface of the coating is dissipated, so that the solidification effect of the coating is improved, finally, the coating coated with the coating is moved to the ironing hot plate, the heater emits heat to the ironing hot plate, at the moment, ironing is conducted upwards from the bottom end of the coating, and the effect of finally drying the coating is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a positive and negative electrode coating device for lithium battery cell production. Background Technique

[0002] The positive and negative electrode coating device for lithium battery cell production is a key device used in the production process of lithium batteries. Its main function is to evenly coat the positive or negative electrode active material onto the battery substrate. Through a precise control system and coating manipulator, the device ensures that the coating thickness is consistent, the surface is flat and defect-free, which is crucial for improving battery performance and reducing production costs. An efficient coating device can also ensure the continuity and stability of the production process and is an essential device for realizing high-quality lithium battery cell manufacturing.

[0003] After retrieval, the text of the publication number "CN214077584U" mentions that "the utility model provides a lithium battery positive and negative electrode feeding and coating device, including a feeding slurry tank, a fixed mounting plate, a main feeding roller, a main roller scraping knife, a lithium battery matrix, a transportation fixing frame, a belt conveyor, a transportation belt, a mounting frame, a guiding roller frame and a feeding and drying mechanism, wherein: two main roller scraping knives are fixedly installed below both sides of the main feeding roller; one end of the transportation fixing frame is fixed at the center position of one side end face of the feeding slurry tank; two guiding roller frames are in contact with the surface of the lithium battery matrix; a feeding and drying mechanism is fixed at the center position of the lower end face of the mounting frame". When in use, the main roller scraping knife, the blocking guiding hook and the feeding and drying mechanism of the utility model, and the setting of the medicine box connecting auxiliary component can store the dropped slurry through its own '√' shape, avoid coating the dropped slurry all over itself, reduce its messy degree, and avoid waste of slurry. However, in the production process of the positive and negative electrodes of lithium battery cells, after coating, due to the metal film material itself having good heat absorption and the coating being in a semi-solid state, the coating solidifies slowly after coating, and external equipment is needed to assist the solidification of the coating, thereby improving the coating solidification efficiency, and the problem that the coating is prone to a semi-dry state with a single coating solidification method.

[0004] Therefore, we provide a positive and negative electrode coating device for lithium battery cell production to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a positive and negative electrode coating device for lithium battery cell production to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a positive and negative electrode coating device for lithium battery cell production, including a coating frame plate and a positive and negative electrode coating mechanism, and the positive and negative electrode coating mechanism is installed on the upper side of the coating frame plate;

[0007] The positive and negative electrode coating mechanism includes a coating cloth guiding frame, a coating material assembly, an air cooling assembly, and a drying assembly. A coating cloth guiding frame is arranged on the upper side of the coating frame plate. A coating material assembly is arranged on the right side of the coating cloth guiding frame. An air cooling assembly is installed on the right side of the coating material assembly. A drying assembly is arranged on the right side of the air cooling assembly.

[0008] Preferably, the coating cloth guiding frame is welded to the coating frame plate, and the coating cloth guiding frame is a downward semi-circular structure.

[0009] Preferably, the coating material assembly includes a material rack, a heater, a heat support plate, a hydraulic lifting rod, a coating pump, and a coating spray knife. A material rack is arranged on the right side of the coating cloth guiding frame. A heater is installed inside the material rack. A heat support plate is installed at the top of the material rack. Hydraulic lifting rods are arranged on both the front and rear sides of the material rack.

[0010] Preferably, the hydraulic lifting rod is welded to the material rack, and the hydraulic lifting rods are symmetrically arranged front and rear with respect to the material rack.

[0011] Preferably, a coating pump is installed at the top of the hydraulic lifting rod, and a coating spray knife is installed below the coating pump.

[0012] Preferably, the air cooling assembly includes a connecting frame and an air cooler. A connecting frame is installed on the right side of the material rack, and an air cooler is arranged at the top of the connecting frame.

[0013] Preferably, the drying assembly includes a heater and an ironing hot plate. A heater is arranged on the right side of the connecting frame, and an ironing hot plate is connected in the middle of the heater.

[0014] Preferably, a cloth winding assembly is installed on the right side of the heater. The cloth winding assembly includes a rotating motor and a cloth winding reel. A rotating motor is arranged on the right side of the heater, and a cloth winding reel is installed in the middle of the rotating motor.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the setting of the positive and negative electrode coating mechanism, when in use, the coating cloth guiding frame allows the metal coating to enter the coating material assembly at a better angle, avoiding the generation of creases on the surface of the metal coating due to hard bending. The heater generates heat through the heat support plate, and the heat of the heat support plate raises the surface temperature of the coating, so that after the coating is coated with the coating material, it can solidify with the coating material faster and accelerate the solidification speed of the coating material itself. At the same time, the hydraulic lifting rod can make fine adjustments according to the ideal thickness of the coating material and the thickness of the coating, so that the coated coating material can reach the best state.

[0017] 2. Through the setting of the positive and negative electrode coating mechanism, when it is needed, the paint pump extrudes the paint through the paint spray knife, and the paint can be directly applied to the coating surface. And according to the height of the paint spray knife, the coating thickness can be finely adjusted. At the same time, the paint spray knife is an integrated coating, which can ensure the overall flatness of the coating. The semi-dry coating with paint enters the air cooler, and the cold air generated by the air cooler dissipates the temperature of the coating surface, thereby improving the solidification effect of the paint. Finally, the coating with paint moves to the ironing hot plate, and the heater emits heat to the ironing hot plate. At this time, it will be ironed from the bottom of the coating upwards to achieve the final effect of drying the paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front structure of the positive and negative electrode coating mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the rear structure of the positive and negative electrode coating mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall side structure of the utility model.

[0022] Numbers in the figure: 1. Coating rack; 2. Positive and negative electrode coating mechanism; 21. Coating rack; 22. Coating paint assembly; 221. Paint rack; 222. Heater; 223. Heat support plate; 224. Hydraulic lifting rod; 225. Paint pump; 226. Paint sprayer; 23. Air cooling assembly; 231. Connecting frame; 232. Air cooler; 24. Drying assembly; 241. Heater; 242. Ironing hot plate; 3. Cloth rolling assembly; 31. Rotating motor; 32. Cloth winding reel. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] See also Figures 1-4 As shown, the utility model provides a technical solution: a positive and negative electrode coating device for lithium battery cell production, comprising a coating frame plate 1 and a positive and negative electrode coating mechanism 2, and the positive and negative electrode coating mechanism 2 is installed on the upper side of the coating frame plate 1;

[0026] The positive and negative electrode coating mechanism 2 includes a coating rack 21, a coating paint assembly 22, an air cooling assembly 23 and a drying assembly 24. The coating rack 21 is arranged on the upper side of the coating rack plate 1, the coating paint assembly 22 is arranged on the right side of the coating rack 21, the air cooling assembly 23 is installed on the right side of the coating paint assembly 22, and the drying assembly 24 is arranged on the right side of the air cooling assembly 23.

[0027] Furthermore, the coating rack 21 is welded to the coating rack plate 1, and the coating rack 21 is a downward semicircular structure. When needed, the coating rack 21 allows the metal coating to enter the coating coating component 22 at a better angle to avoid creases on the metal coating surface due to hard bending.

[0028] Furthermore, the coating component 22 includes a coating rack 221, a heater 222, a heat support plate 223, a hydraulic lifting rod 224, a coating pump 225 and a coating spray knife 226. The coating rack 221 is arranged on the right side of the coating rack 21, the inner side of the coating rack 221 is installed with a heater 222, the top of the coating rack 221 is installed with a heat support plate 223, and the front and rear sides of the coating rack 221 are both provided with hydraulic lifting rods 224. When needed, the heater 222 generates heat through the heat support plate 223, and the heat of the heat support plate 223 will increase the coating surface temperature, so that the coating can solidify with the coating faster after the coating is applied, and the solidification speed of the coating itself can be accelerated.

[0029] Furthermore, the hydraulic lifting rod 224 and the paint rack 221 are welded, and the hydraulic lifting rod 224 and the paint rack 221 are symmetrically arranged front to back. When needed, the hydraulic lifting rod 224 can be finely adjusted according to the ideal thickness of the paint and the coating thickness, so that the applied paint can reach the best state.

[0030] Furthermore, a paint pump 225 is installed at the top of the hydraulic lifting rod 224, and a paint sprayer 226 is installed at the lower side of the paint pump 225. When it is needed, the paint pump 225 extrude the paint through the paint sprayer 226, and the paint can be directly applied to the coating surface. The paint thickness can be finely adjusted according to the height of the paint sprayer 226. At the same time, the paint sprayer 226 is an integrated application, which can ensure the overall flatness of the application.

[0031] Furthermore, the air cooling assembly 23 includes a connecting frame 231 and an air cooler 232. The connecting frame 231 is installed on the right side of the paint rack 221, and the air cooler 232 is arranged on the top of the connecting frame 231. When it is needed, the semi-dry coating with paint enters the air cooler 232, and the cold air generated by the air cooler 232 dissipates the temperature of the paint surface, thereby improving the solidification effect of the paint.

[0032] Further, the drying assembly 24 includes a heater 241 and an ironing hot plate 242. The heater 241 is disposed on the right side of the connecting frame 231, and the ironing hot plate 242 is connected in the middle of the heater 241. When in use, the coated material coated with the paint moves onto the ironing hot plate 242, and the heater 241 emits heat to the ironing hot plate 242. At this time, ironing is performed from the bottom end of the coated material upward to achieve the effect of finally drying the paint.

[0033] Embodiment 2

[0034] Please refer to Figure 1 and Figure 4 As shown, compared with Embodiment 1, as another implementation manner of the present invention, a cloth winding assembly 3 is installed on the right side of the heater 241. The cloth winding assembly 3 includes a rotating motor 31 and a cloth winding reel 32. The rotating motor 31 is disposed on the right side of the heater 241, and the cloth winding reel 32 is installed in the middle of the rotating motor 31. When in use, the rotating motor 31 drives the cloth winding reel 32 to rotate, so as to wind up the coated material, avoiding the coated material being exposed to dust for a long time and being contaminated.

[0035] Working principle: Move a positive and negative electrode coating device for lithium battery cell production to the working position. When in use, in the first step, first connect one end of the coated material to the cloth winding reel 32, and pad the other end of the coated material under the coating guiding frame 21 on the coating rack plate 1. Then, according to the thickness of the paint and the thickness of the coated material, adjust the heights of the paint pump 225 and the paint spraying knife 226 through the hydraulic lifting rod 224. Then, the rotating motor 31 drives the cloth winding reel 32 to rotate. In the second step, the paint pump 225 and the paint spraying knife 226 spray the paint onto the coated material, and then the heater 222 generates high temperature, which is conducted to the heat support plate 223 on the paint rack 221 to initially solidify the paint. Then, due to the pulling of the cloth winding reel 32, the coated material is pulled into the air cooler 232 at the top of the connecting frame 231 for solidification, and finally pulled onto the ironing hot plate 242 in the middle of the heater 241 for final solidification, and finally wound together by the cloth winding reel 32. In this way, the use process of a positive and negative electrode coating device for lithium battery cell production is completed.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positive and negative electrode coating device for lithium battery cell production, comprising a coating frame plate (1) and a positive and negative electrode coating mechanism (2), characterized in that: The positive and negative electrode coating mechanism (2) is installed on the upper side of the coating rack board (1); The positive and negative electrode coating mechanism (2) includes a coating cloth guiding rack (21), a coating paint component (22), an air cooling component (23), and a drying component (24). The coating cloth guiding rack (21) is arranged on the upper side of the coating rack board (1). The coating paint component (22) is arranged on the right side of the coating cloth guiding rack (21). The air cooling component (23) is installed on the right side of the coating paint component (22). The drying component (24) is arranged on the right side of the air cooling component (23).

2. The anode and cathode coating device for lithium battery cell production according to claim 1, characterized in that, The coating cloth guiding rack (21) is welded to the coating rack board (1), and the coating cloth guiding rack (21) is a downward semi-circular structure.

3. The anode and cathode coating device for lithium battery cell production according to claim 1, characterized in that, The coating paint component (22) includes a paint rack (221), a heater (222), a heat support plate (223), a hydraulic lifting rod (224), a paint pump (225), and a paint spray knife (226). The paint rack (221) is arranged on the right side of the coating cloth guiding rack (21). The heater (222) is installed inside the paint rack (221). The heat support plate (223) is installed at the top of the paint rack (221). The hydraulic lifting rods (224) are arranged on both the front and back sides of the paint rack (221).

4. A positive and negative electrode coating device for lithium battery cell production according to claim 3, characterized in that, The hydraulic lifting rod (224) is welded to the paint rack (221), and the hydraulic lifting rods (224) are symmetrically arranged in the front and back with respect to the paint rack (221).

5. A positive and negative electrode coating device for lithium battery cell production according to claim 3, characterized in that, The paint pump (225) is installed at the top of the hydraulic lifting rod (224), and the paint spray knife (226) is installed below the paint pump (225).

6. A positive and negative electrode coating device for lithium battery cell production according to claim 3, characterized in that, The air cooling component (23) includes a connecting rack (231) and an air cooler (232). The connecting rack (231) is installed on the right side of the paint rack (221), and the air cooler (232) is arranged at the top of the connecting rack (231).

7. The anode and cathode coating device for lithium battery cell production according to claim 6, wherein, The drying component (24) includes a heater (241) and an ironing hot plate (242). The heater (241) is arranged on the right side of the connecting rack (231), and the ironing hot plate (242) is connected in the middle of the heater (241).

8. A positive and negative electrode coating device for lithium battery cell production according to claim 7, characterized in that, A cloth winding component (3) is installed on the right side of the heater (241). The cloth winding component (3) includes a rotating motor (31) and a cloth winding reel (32). The rotating motor (31) is arranged on the right side of the heater (241), and the cloth winding reel (32) is installed in the middle of the rotating motor (31).

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