Air floatation device and drying oven

Abstract

The utility model discloses an air flotation device and a drying oven. The air flotation device comprises an air nozzle base and an air flotation assembly arranged on the air nozzle base. Air outlet channels are formed in the two sides, in the extending direction of the air floating assembly, of the air nozzle base. The air floating assembly is provided with an air floating plate, compact holes are formed in the surface of the air floating plate, and airflow in the air floating assembly can form an air film through the air floating plate. According to the air floatation device, the air film generated by the air floatation assembly and the air flow generated by the air outlet channel of the tuyere base are used for synergistic effect, stable non-contact supporting of the pole piece is achieved, the problems that the pole piece scrapes the tuyere and the curled edge cracks are effectively avoided, and the drying oven with the air floatation device improves the surface drying quality and the overall production efficiency of the pole piece and reduces the production cost. And meanwhile, the maintenance cost and the material loss in the production process are reduced.

Description

Technical Field

[0001] The utility model relates to the field of pole piece drying, in particular to an air flotation device and a drying oven. Background Art

[0002] In the production line of a fully floating oven, due to the large length and span of the equipment, especially after the electrode coating process, its weight increases significantly, which makes it easy for the electrode to be scraped off the air nozzle in the oven, affecting production efficiency and product quality. In addition, the electrode is prone to curling in the later stages of oven drying, especially near the thinning area. After further physical roller pressing, the electrode is prone to cracking, which affects the overall quality and performance of the electrode. Although the traditional roller lifting method can provide a certain amount of support, it is easy to leave dark marks on the surface of the electrode and even cause defects such as cracking. Therefore, a new support technology is urgently needed to solve these problems. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an air flotation device and an oven which have better supporting performance and are less likely to cause scraping.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An air flotation device, comprising:

[0006] A tuyere base and an air flotation assembly arranged on the tuyere base;

[0007] Air outlet channels are provided on both sides of the nozzle base along the extension direction of the air flotation component;

[0008] The air flotation component has an air flotation plate with dense pores on its surface. The air flow inside the air flotation component can form an air film through the air flotation plate. The air film cooperates with the air flow generated by the air outlet channel to achieve stable support for the electrode.

[0009] Furthermore, the air flotation assembly includes a first air flotation chamber and a second air flotation chamber;

[0010] The first air flotation chamber has an air inlet communicating with an external device and an air outlet for discharging air;

[0011] The air flotation plate is fixed on the top of the second air flotation cavity, the first air flotation cavity is located inside the second air flotation cavity, and the air outlet is arranged along a side facing away from the air flotation plate.

[0012] Furthermore, the air outlets are located at both ends of the first air flotation cavity.

[0013] Furthermore, an air mixing portion is provided inside the nozzle base for mixing and distributing the incoming airflow to form a uniform airflow.

[0014] Furthermore, the nozzle base further includes an air inlet cavity and an air inlet channel;

[0015] The air mixing part is a porous plate structure, and the porous plate divides the air inlet cavity into a first air inlet cavity and a second air inlet cavity;

[0016] The first air inlet cavity is communicated with the air outlet channel, and the second air inlet cavity is communicated with the air inlet channel.

[0017] Furthermore, a wind shield is provided on the nozzle base, one end of the wind shield is inclined along one side of the air flotation component, and the wind shield and the side wall of the air flotation component form a nozzle structure.

[0018] Furthermore, the air flotation assembly is connected to the nozzle base via a connector;

[0019] The distance between the air flotation component and the nozzle base is adjustable.

[0020] Furthermore, the air flotation plate has a porous structure.

[0021] Furthermore, the air floating plate is a curved surface structure.

[0022] An oven comprises the above-mentioned flotation device.

[0023] The beneficial effects of the utility model are:

[0024] The present invention provides an air flotation device and oven, comprising a nozzle base and an air flotation assembly mounted on the nozzle base. The air film generated by the air flotation assembly works in synergy with the airflow generated by the nozzle base's air outlet channel to achieve stable, non-contact support for the electrode, effectively preventing the electrode from being scraped off the nozzle and causing edge cracking. The oven equipped with this air flotation device improves the surface drying quality of the electrode and overall production efficiency, while reducing maintenance costs and material loss during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the disassembly of the utility model;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0028] Figure 3 This is another schematic diagram of the cross-sectional structure of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the first air flotation chamber of the utility model.

[0030] in,

[0031] 100, nozzle base; 110, air outlet channel; 120, air inlet channel; 130, air mixing unit; 140, first air inlet cavity; 150, second air inlet cavity; 160, wind shield;

[0032] 200, air flotation assembly; 210, air flotation plate; 220, first air flotation chamber; 221, air inlet; 222, air outlet; 230, second air flotation chamber;

[0033] 300. Connectors. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0035] Reference Figure 1-3A flotation device includes: a nozzle base 100 and an air flotation assembly 200 disposed on the nozzle base 100; air outlet channels 110 are provided on both sides of the nozzle base 100 along the extension direction of the air flotation assembly 200; the air flotation assembly 200 has an air flotation plate 210, the surface of which has dense pores. The air flow within the air flotation assembly 200 can form an air film through the air flotation plate 210, and the air film cooperates with the air flow generated by the air outlet channel 110 to achieve stable support for the electrode. The air flotation plate 210 has a porous structure, and preferably, the pore size of the air flotation plate 210 is submicron or micron-sized. When the air flow passes through the air flotation plate 210, an air film with low flow rate and high pressure is formed on the surface of the air flotation plate 210. The air film can effectively support the electrode and suppress the vibration of the electrode, which can effectively solve the problems of insufficient buoyancy of the electrode supported by traditional nozzles, dark marks, and coating cracking. However, the gap at the edge of the air flotation plate 210 is reduced, and there is a problem of low pressure and insufficient supporting force at the edge of the air flotation plate 210. The airflow generated by the air outlet channel 110 set at the bottom of the air nozzle can be used to compensate for the problem of insufficient supporting force. The airflow generated by the air outlet channel 110 cooperates with the air film on the air flotation plate 210 to support the electrode, thereby improving the stability of the supported electrode and reducing the risk of scratching. Specifically, the air outlet channel 110 is a porous plate structure. The multiple air holes of the air outlet channel 110 are along both sides of the extension direction of the air flotation component 200. The airflow can be blown out through the multiple air holes of the air outlet channel 110 and generate airflow to support the electrode.

[0036] In some embodiments, reference Figure 1-4The air flotation assembly 200 includes a first air flotation chamber 220 and a second air flotation chamber 230. The first air flotation chamber 220 has an air inlet 221 for communicating with external equipment and an air outlet 222 for discharging air. The air flotation plate 210 is fixed to the top of the second air flotation chamber 230. The first air flotation chamber 220 is located within the second air flotation chamber 230, and the air outlet 222 is located along the side facing away from the air flotation plate 210. It is understood that the airflow introduced into the air flotation assembly 200 from the external equipment passes through the first air flotation chamber 220, the second air flotation chamber 230, and the air flotation plate 210 in sequence, ultimately forming an air film on the surface of the air flotation plate 210. It should be noted that the provision of the second air flotation chamber 230 prevents the incoming airflow from directly impacting the air flotation plate 210, which could generate significant turbulence near the air flotation plate 210 and affect the stability of the air film. It also reduces pole piece vibration or displacement caused by direct airflow impact, thereby improving operational safety. Furthermore, the outlet 222 is oriented toward the bottom of the second air flotation chamber 230, which can minimize airflow impact and allow the airflow time to stabilize before reaching the air flotation plate 210. This allows the gas to be more evenly distributed across the surface of the air flotation plate 210, forming a more uniform and stable air film. Furthermore, the outlet 222 being oriented toward the bottom wall may help create a certain pressure gradient within the first air flotation chamber 220, which can promote the flow of gas from the air inlet 221 to the outlet 222. At the same time, a low-pressure area is formed below the air flotation plate 210, which helps form an air film above the air flotation plate 210, thereby better supporting the electrode.

[0037] Further, refer to Figure 4 The air outlets 222 are located at both ends of the first air flotation chamber 220. It is understood that when air is introduced, the air outlets 222 located at both ends of the first air flotation chamber 220 can form a certain flow path within the second air flotation chamber 230, thereby helping the gas to form a stable air film on the surface of the air flotation plate 210, thereby improving the support force and stability of the air flotation plate 210.

[0038] In some embodiments, reference Figure 1 、 3 , the air flotation plate 210 has a curved surface structure. The curved surface structure can optimize the flotation effect, especially under high-speed or dynamic conditions, where the curved surface can reduce the friction between the air flotation plate 210 and the pole piece. Specifically, curved surfaces of different diameters can be replaced according to different working conditions. In addition, in applications that do not require complex airflow control or regular pole piece shapes, a flat air flotation plate 210 can provide sufficient performance. In this case, the air flotation plate 210 can have a flat structure. In some embodiments, a combination of air flotation plates 210 with flat structures and air flotation plates 210 with curved surfaces can be used to meet specific process requirements.

[0039] In some embodiments, reference Figure 1 , the air flotation component 200 is connected to the nozzle base 100 through a connector 300; the distance between the air flotation component 200 and the nozzle base 100 is adjustable. The air flotation component 200 and the nozzle base 100 can be connected by connectors 300 of different sizes, so that the distance can be adjusted. Alternatively, the connector 300 has a retractable structure. When the flotation component and the nozzle base 100 are connected through the connector 300, the distance between the air flotation component 200 and the nozzle base 100 can be adjusted by adjusting the length of the connector 300. By adjusting the height of the air flotation component 200, the electrode becomes a larger arc path during the tape running process. The arc in the tape running direction can suppress the warping and curling in the width direction of the electrode, thereby effectively releasing the drying stress in the unformed stage of the coating, solving and alleviating the curling after complete drying, and avoiding the cracking problem caused by subsequent rolling.

[0040] In some embodiments, reference Figure 2 、 3 The nozzle base 100 is internally provided with an air mixing unit 130 for mixing and distributing the incoming airflow to form a uniform flow. The air mixing unit 130 reduces turbulence and eddies before the airflow enters the outlet channel 110, thereby reducing noise and vibration during operation of the air flotation device. It also distributes the incoming airflow, ensuring that the airflow enters different areas or channels in appropriate proportions to meet support requirements.

[0041] Further, refer to Figure 1-3 The nozzle base 100 also includes an air inlet cavity and an air inlet channel 120. The air mixing unit 130 is a porous plate structure that divides the air inlet cavity into a first air inlet cavity 140 and a second air inlet cavity 150. The first air inlet cavity 140 communicates with the air outlet channel 110, and the second air inlet cavity 150 communicates with the air inlet channel 120. The air mixing unit 130 is a porous plate structure, or it can be a plate-like structure with multiple airflow channels. Specifically, the porous plate structure is provided with multiple vents at intervals, connecting the first air inlet cavity 140 and the second air inlet cavity 150. Gas passing through the second air inlet cavity 150 is disrupted and mixed by the porous plate, further dispersing and homogenizing the mixed airflow and reducing airflow unevenness. This improves the airflow stability from the air outlet channel 110. Combined with the stable support provided by the air flotation assembly 200, it can better support the pole piece and suppress pole piece vibration, further reducing the risk of pole piece scraping.

[0042] In some embodiments, reference Figure 1 、 3The nozzle base 100 is provided with a windshield 160, one end of which is inclined along one side of the air flotation assembly 200. The windshield 160 and the sidewall of the air flotation assembly 200 form a nozzle structure. It is understood that the airflow exiting the air outlet 110 can change its streamlines through the windshield 160, and the nozzle structure formed by the windshield 160 and the sidewall of the air flotation assembly 200 forms an airflow with higher pressure, thereby increasing the support force on the electrode. This not only improves the support effect, but also requires less air volume to achieve a better support effect compared to a solution without the windshield 160, effectively reducing energy consumption.

[0043] An oven includes the above-mentioned flotation device, which supports and transports the electrode. Specifically, the flotation device is installed inside the oven through a fixing seat. Specifically, the flotation device is spaced apart at the upper and bottom parts of the oven. The flotation devices spaced apart above and below can better support the electrode, greatly reduce the risk of scraping, and improve the quality of the electrode. In some embodiments, the fixing device has a height adjustment mechanism (not shown in the figure), which can adjust the distance between the flotation device and the electrode according to the requirements of different drying processes for electrode tape, so as to meet production needs and improve production efficiency.

[0044] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An air flotation device, characterized in that: include: A tuyere base and an air flotation assembly arranged on the tuyere base; Air outlet channels are provided on both sides of the nozzle base along the extension direction of the air flotation component; The air flotation component has an air flotation plate with dense pores on its surface. The air flow inside the air flotation component can form an air film through the air flotation plate. The air film cooperates with the air flow generated by the air outlet channel to achieve stable support for the electrode.

2. The air flotation device according to claim 1, characterized in that The air flotation assembly includes a first air flotation chamber and a second air flotation chamber; The first air flotation chamber has an air inlet communicating with an external device and an air outlet for discharging air; The air flotation plate is fixed on the top of the second air flotation cavity, the first air flotation cavity is located inside the second air flotation cavity, and the air outlet is arranged along a side facing away from the air flotation plate.

3. The air flotation device according to claim 2, characterized in that: The air outlets are located at both ends of the first air flotation cavity.

4. The air flotation device according to claim 1, characterized in that An air mixing portion is provided inside the nozzle base for mixing and distributing the incoming airflow to form a uniform airflow.

5. The air flotation device according to claim 4, characterized in that: The nozzle base also includes an air inlet cavity and an air inlet channel; The air mixing part is a porous plate structure, and the porous plate divides the air inlet cavity into a first air inlet cavity and a second air inlet cavity; The first air inlet cavity is communicated with the air outlet channel, and the second air inlet cavity is communicated with the air inlet channel.

6. The air flotation device according to claim 5, characterized in that: A wind shield is provided on the nozzle base, one end of the wind shield is inclined along one side of the air flotation component, and the wind shield and the side wall of the air flotation component form a nozzle structure.

7. The air flotation device according to claim 1, characterized in that: The air flotation assembly is connected to the nozzle base via a connector; The distance between the air flotation component and the nozzle base is adjustable.

8. The air flotation device according to any one of claims 1 to 7, characterized in that: The air flotation plate has a porous structure.

9. The air flotation device according to any one of claims 1 to 7, characterized in that: The air floating plate has a curved surface structure.

10. An oven, characterized in that: The invention comprises the flotation device according to any one of claims 1 to 9.

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