Drying oven tuyere of pole piece coating machine

Abstract

The utility model relates to the technical field of coating and drying devices, in particular to a pole piece coating machine drying oven tuyere which comprises a shell structure, an air speed adjusting structure arranged on the shell structure and an air uniformizing adsorption structure. The shell structure comprises a supporting shell, the wind speed adjusting structure comprises a flow dividing base in sliding connection with the supporting shell, the flow dividing base is provided with a first flow dividing part and a second flow dividing part, the supporting shell is provided with a first inclined part and a second inclined part, and the first flow dividing part and the first inclined part surround to form a first wind passing channel. The second flow dividing part and the second inclined part form a second air passing channel; sliding assemblies in sliding connection with the supporting shell and limiting assemblies used for limiting the flow dividing base are arranged on the two sides of the flow dividing base. The sliding flow dividing base drives the flow dividing part to slide up and down so as to be matched with the inclined part to adjust the size of the air passing channel, the uniform and stable pole piece drying effect can be ensured by accurately adjusting and controlling the air speed, and the drying efficiency and quality are improved.

Description

Technical Field

[0001] This application relates to the field of coating and drying equipment technology, and in particular to an air nozzle for an electrode coating machine oven. Background Technology

[0002] In the production process of battery electrodes, the drying process is a crucial step. To ensure that the quality and performance of battery electrodes meet the standards, the electrodes need to be dried under specific temperature and wind speed conditions.

[0003] With the advancement and improvement of process requirements, conventional oven nozzles have many drawbacks in practical applications. On the one hand, these oven nozzles lack precision in wind speed adjustment and are difficult to finely control according to the needs of different electrodes. If the wind speed is uneven, the drying degree of different parts of the electrode will be inconsistent, resulting in significant differences in the drying effect of the electrode, and even seriously damaging the consistency of the electrode. On the other hand, for magnetic foreign objects that are widely present in the air and equipment, industry standards such as GB / T41704-2022 clearly require that the detection limit of magnetic foreign objects in positive electrode materials be 1 ppb. However, conventional nozzles lack effective filtration methods. Once magnetic impurities in the air are adsorbed on the electrode, the electrochemistry inside the battery will be strongly interfered with, the charging and discharging performance and stability of the battery will decline, and thus affect the overall production performance and puncture test pass rate of the battery, resulting in poor yield. Utility Model Content

[0004] The purpose of this application is to provide an oven nozzle for an electrode coating machine, which aims to improve the problem of poor wind speed adjustment accuracy of oven nozzles in related technologies, and improve the efficiency and yield of electrode drying.

[0005] This application provides an oven nozzle for an electrode coating machine, including a shell structure, a wind speed adjustment structure disposed on the shell structure, and a uniform air adsorption structure; the shell structure includes a supporting shell, the wind speed adjustment structure includes a flow divider seat slidably connected to the supporting shell, the flow divider seat having a first flow divider portion and a second flow divider portion, the supporting shell having a first inclined portion and a second inclined portion, the first flow divider portion and the first inclined portion forming a first air passage, the second flow divider portion and the second inclined portion forming a second air passage; sliding components slidably connected to the supporting shell and limiting components for limiting the flow divider seat are disposed on both sides of the flow divider seat.

[0006] Furthermore, the supporting housing has an adjustment cavity, and the sliding assembly includes an upper sliding plate and a lower sliding plate slidably connected to the adjustment cavity; the upper sliding plate has an upper limit groove at one end facing the lower sliding plate, and the lower sliding plate has a lower limit groove at one end facing the upper sliding plate; the two sides of the diverter seat have adapter shafts, and the adapter shafts are installed between the upper limit groove and the lower limit groove.

[0007] Furthermore, an upper support spring is connected between the upper sliding plate and the supporting housing, and a lower support spring is connected between the lower sliding plate and the supporting housing.

[0008] Furthermore, the limiting component includes a limiting sleeve that abuts against the supporting housing, and the adapter shaft passes through the limiting sleeve; a limiting valve handle is threadedly connected to the side of the limiting sleeve away from the adapter shaft, and a limiting spring is provided between the limiting valve handle and the limiting sleeve.

[0009] Furthermore, the supporting shell is provided with guide grooves, which are located on both sides of the adjusting cavity; the diverter seat has a sliding bolt, which is slidably connected to the guide groove.

[0010] Furthermore, the supporting shell is fixedly connected to a porous mesh plate; the uniform air adsorption structure includes a uniform air substrate installed on the porous mesh plate, the uniform air substrate having a plurality of uniform air holes, and an adsorption magnetic ring disposed in the plurality of uniform air holes.

[0011] Furthermore, the uniform air distribution substrate has a plurality of mounting pieces along its circumferential direction, and the plurality of mounting pieces are mounted on the perforated mesh plate by means of threaded connection.

[0012] The beneficial effects of this application are:

[0013] 1. The present application discloses an oven nozzle for an electrode coating machine. A flow divider is installed in the supporting shell of the oven nozzle. The flow divider and its corresponding inclined portion cooperate to form an air passage. A sliding component and a limiting component drive the flow divider to slide up and down and to be fixed in place. The sliding flow divider causes the flow divider to slide up and down, thereby cooperating with the inclined portion to adjust the size of the air passage, achieving stepless adjustment of the air velocity. Precise control of the air velocity ensures uniform and stable electrode drying, effectively improving electrode quality and meeting the drying requirements of different electrodes. Simultaneously, the uniform airflow adsorption structure can uniformly distribute and filter the incoming drying air, improving drying efficiency and quality.

[0014] 2. A nozzle for an electrode coating machine oven, comprising a perforated mesh plate with a detachable air distribution substrate mounted on the upper part of the mesh plate, wherein a magnetic ring is installed on the inner side of the air distribution substrate. This system forms a highly efficient air purification system. When airflow enters the supporting shell from the perforated mesh plate, it first passes through the inner wall of the magnetic ring. During this process, the magnetic ring effectively adsorbs and removes magnetic substances from the air, effectively reducing magnetic impurities from contaminating the battery electrodes, preventing impurities from affecting the battery's charge / discharge performance and stability, and improving battery production performance and yield. Furthermore, the detachable air distribution substrate facilitates replacement and maintenance, improving the ease of use of the nozzle for the electrode coating machine oven. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an oven nozzle for an electrode coating machine provided in an embodiment of this application;

[0016] Figure 2 This is a cross-sectional schematic diagram of an oven nozzle for an electrode coating machine provided in an embodiment of this application;

[0017] Figure 3 This is another cross-sectional schematic diagram of an oven nozzle for an electrode coating machine provided in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the sliding component and the limiting component in the embodiments of this application;

[0019] Figure 5 yes Figure 2 A magnified view of part A in the middle;

[0020] Figure 6 This is a schematic diagram of the internal structure of the supporting shell in an embodiment of this application;

[0021] Figure 7 This is a schematic diagram of the cooperation structure between the uniform wind adsorption structure and the outer shell structure in the embodiments of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Outer shell structure; 11. Supporting outer shell; 111. First inclined part; 112. Second inclined part; 113. Adjustment cavity; 114. Guide slide groove; 12. Perforated mesh plate; 2. Wind speed adjustment structure; 21. Flow divider seat; 211. First flow divider; 212. Second flow divider; 213. Adaptor shaft; 214. Sliding bolt; 22. Sliding assembly; 221. Upper sliding plate; 222. Lower sliding plate; 23. Limiting assembly; 231. Limiting bushing; 232. Limiting valve; 233. Limiting spring; 3. Uniform air adsorption structure; 31. Uniform air base plate; 311. Mounting plate; 32. Adsorption magnetic ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0027] Reference Figure 1 as well as Figure 2 This application provides an oven nozzle for an electrode coating machine, including a housing structure 1, a wind speed regulating structure 2 disposed on the housing structure 1, and a uniform air adsorption structure 3. When the oven nozzle of the electrode coating machine is running, the wind speed regulating structure 2 can slide up and down along the housing structure 1 to precisely regulate the wind speed, while the uniform air adsorption structure 3 is located at the air inlet of the nozzle to filter and remove magnetic impurities in the air.

[0028] The outer shell structure 1 is used to support and install various structures. The outer shell structure 1 includes a supporting outer shell 11. The wind speed adjustment structure 2 is disposed inside the supporting outer shell 11. The wind speed adjustment structure 2 includes a diverter seat 21 that is slidably connected to the supporting outer shell 11. The diverter seat 21 has sliding components 22 that are slidably connected to the supporting outer shell 11 on both sides, as well as limiting components 23 for limiting the diverter seat 21.

[0029] Reference Figure 2 as well as Figure 3 Specifically, the diverter seat 21 is triangularly arranged, and has a first diverter portion 211 and a second diverter portion 212. The supporting shell 11 has a first inclined portion 111 and a second inclined portion 112 corresponding to the diverter portions. The first diverter portion 211 and the first inclined portion 111 form a first air passage, and the second diverter portion 212 and the second inclined portion 112 form a second air passage. In this embodiment, the first inclined portion 111 and the second inclined portion 112 first converge towards the center of the interior of the supporting shell 11, and then expand away from the interior of the supporting shell 11. With this arrangement, when the air intake volume is determined, the diverter seat 21 moves upward, the gap between the first diverter portion 211, the second diverter portion 212 and the corresponding inclined portion decreases, and the air velocity at the outlet increases; when the diverter seat 21 moves downward, the gap at the air outlet increases, and the air velocity decreases.

[0030] Reference Figure 3 , Figure 4 as well as Figure 5To facilitate the upward and downward sliding of the diverter seat 21, the supporting housing 11 has adjustment cavities 113 on both sides. The sliding assembly 22 includes an upper sliding plate 221 and a lower sliding plate 222 slidably connected to the adjustment cavities 113. The upper sliding plate 221 has an upper limit groove at the end facing the lower sliding plate 222, and the lower sliding plate 222 has a lower limit groove at the end facing the upper sliding plate 221. The diverter seat 21 has adapter shafts 213 on both sides, which are installed between the upper limit groove and the lower limit groove. Meanwhile, an upper support spring connects the upper sliding plate 221 to the supporting housing 11, and a lower support spring connects the lower sliding plate 222 to the supporting housing 11. It is worth mentioning that, within the stroke range, both the upper sliding plate 221 and the lower sliding plate 222 have portions located within the adjustment cavity 113, thereby preventing gas leakage from the support housing 11 and ensuring that all airflow is blown out from the narrow slit formed by the support housing 11 and the diverter seat 21, thus improving the utilization rate of airflow and drying efficiency.

[0031] Reference Figure 3 as well as Figure 6 Meanwhile, the supporting housing 11 has guide grooves 114, which are located on both sides of the adjusting cavity 113; the diverter seat 21 has a sliding bolt 214, which is slidably connected to the guide groove 114. By setting the guide groove 114, when the diverter seat 21 is driven to move up and down by the adapter shaft 213, the diverter seat 21 can slide up and down along a preset trajectory under the action of the sliding bolt 214 and the guide groove 114, thus facilitating operation by the operator.

[0032] Reference Figure 5The limiting component 23 includes a limiting sleeve 231 that abuts against the supporting housing 11, and an adapter shaft 213 passing through the limiting sleeve 231. A limiting valve handle 232 is threadedly connected to the side of the limiting sleeve 231 away from the adapter shaft 213, and a limiting spring 233 is provided between the limiting valve handle 232 and the limiting sleeve 231. The limiting sleeve 231, the limiting valve handle 232, and the limiting spring 233 constitute an elastic telescopic rod. The friction between the limiting sleeve 231 and the supporting housing 11 provides an initial clamping force. When the limiting valve handle 232 is continuously screwed in, the limiting valve handle 232 compresses the limiting spring 233. Under the action of the limiting spring 233, the limiting sleeve 231 is further pressed against the supporting housing 11, thereby fixing the position of the adapter shaft 213. During subsequent adjustments, the limiting sleeve 231 can be pulled directly to temporarily detach it from the supporting housing 11. Then, the position of the limiting sleeve 231 can be adjusted, using it to move the adapter shaft 213, thus facilitating the adjustment of the position of the diverter seat 21. It can be understood that by rotating the limiting valve handle 232, the distance between the limiting valve handle 232 and the limiting sleeve 231 can be adjusted, thereby adjusting the preload of the fiber assembly and ensuring the stability of the diverter seat 21. By adjusting the width of the corresponding air passage, stepless adjustment can be achieved, precisely adjusting the air outlet speed of the nozzle.

[0033] Reference Figure 7 To accommodate the installation of the uniform airflow adsorption structure 3, a perforated mesh plate 12 is fixedly connected to the upper end of the supporting shell 11. The uniform airflow adsorption structure 3 includes a uniform airflow substrate 31 mounted on the perforated mesh plate 12. The uniform airflow substrate 31 has several uniform airflow holes, and adsorption magnetic rings 32 are disposed in the several uniform airflow holes. The adsorption magnetic rings 32 are concentrically arranged with the uniform airflow holes. When air passes through the uniform airflow substrate 31, magnetic impurities in the air will be adsorbed by the magnetic rings, effectively reducing the content of magnetic impurities in the air entering the supporting shell 11. In addition, the uniform airflow substrate 31 has several mounting pieces 311 along its circumferential direction. The mounting pieces 311 are installed on the perforated mesh plate 12 by means of threaded connection. This arrangement allows for easy disassembly and maintenance of the uniform airflow substrate 31 through the mounting pieces 311, or for cleaning the impurities adsorbed in the adsorption magnetic rings 32.

[0034] The working principle of the air nozzle of the electrode coating machine oven in this application is as follows: When the air intake volume is fixed, when the wind speed needs to be adjusted, the restriction on the adapter shaft 213 is released by pulling the limiting bushing 231 or releasing the limiting valve 232. The adapter shaft 213 slides up and down in the adjustment cavity 113 through the sliding plate, thereby driving the flow divider 21 to move up and down in the outer shell. When the flow divider 21 moves upward, the gap between it and the supporting outer shell 11 gradually decreases, the space for airflow becomes smaller, and the outlet wind speed increases accordingly; when the flow divider 21 moves downward, the outlet gap increases, and the wind speed decreases. After the adjustment is completed, the limiting bushing 231 is released or the limiting valve 232 is locked, and the limiting bushing 231 is pressed tightly against the outside of the supporting outer shell 11 to fix the position of the flow divider 21. The airflow enters from the air inlet at the top of the outer shell. When the airflow enters the interior of the outer shell from the porous mesh plate 12, it first passes through the inner wall of the magnetic adsorption ring 32. The magnetic adsorption ring 32 can remove magnetic substances from the air, purify the air entering the drying oven, reduce the contamination of battery electrodes by magnetic impurities, ensure the quality of battery electrodes during the drying process, and improve battery production performance and yield.

[0035] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A nozzle for an oven of an electrode coating machine, characterized in that, The device includes an outer shell structure (1), a wind speed regulating structure (2) disposed on the outer shell structure (1), and a uniform air adsorption structure (3); the outer shell structure (1) includes a supporting shell (11), the wind speed regulating structure (2) includes a diverter seat (21) slidably connected to the supporting shell (11), the diverter seat (21) has a first diverter portion (211) and a second diverter portion (212), the supporting shell (11) has a first inclined portion (111) and a second inclined portion (112), the first diverter portion (211) and the first inclined portion (111) enclose each other to form a first air passage, and the second diverter portion (212) and the second inclined portion (112) form a second air passage; the diverter seat (21) is provided with sliding components (22) slidably connected to the supporting shell (11) and limiting components (23) for limiting the diverter seat (21) on both sides.

2. The electrode coating machine oven nozzle according to claim 1, characterized in that, The supporting housing (11) has an adjustment cavity (113), and the sliding assembly (22) includes an upper sliding plate (221) and a lower sliding plate (222) slidably connected to the adjustment cavity (113); the upper sliding plate (221) has an upper limit groove at one end facing the lower sliding plate (222), and the lower sliding plate (222) has a lower limit groove at one end facing the upper sliding plate (221); the diverter seat (21) has adapter shafts (213) on both sides, and the adapter shafts (213) are installed between the upper limit groove and the lower limit groove.

3. The electrode coating machine oven nozzle according to claim 2, characterized in that, An upper support spring is connected between the upper sliding plate (221) and the supporting shell (11), and a lower support spring is connected between the lower sliding plate (222) and the supporting shell (11).

4. The electrode coating machine oven nozzle according to claim 2, characterized in that, The limiting assembly (23) includes a limiting sleeve (231) that abuts against the supporting housing (11), and the adapter shaft (213) passes through the limiting sleeve (231); a limiting valve handle (232) is threadedly connected to the side of the limiting sleeve (231) away from the adapter shaft (213), and a limiting spring (233) is provided between the limiting valve handle (232) and the limiting sleeve (231).

5. The air nozzle for an electrode coating machine oven according to claim 2, characterized in that, The supporting shell (11) is provided with a guide groove (114), which is located on both sides of the adjusting cavity (113); the diverter seat (21) has a sliding bolt (214), which is slidably connected to the guide groove (114).

6. The oven nozzle for an electrode coating machine according to any one of claims 1-5, characterized in that, The supporting shell (11) is fixedly connected to a porous mesh plate (12); the uniform air adsorption structure (3) includes a uniform air substrate (31) installed on the porous mesh plate (12), the uniform air substrate (31) has a plurality of uniform air holes, and an adsorption magnetic ring (32) is provided in the plurality of uniform air holes.

7. The electrode coating machine oven nozzle according to claim 6, characterized in that, The uniform air substrate (31) has a plurality of mounting pieces (311) along its circumferential direction, and the plurality of mounting pieces (311) are mounted on the perforated mesh plate (12) by means of threaded connection.

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