Lithium battery pole piece coating machine

Abstract

The utility model discloses a lithium battery pole piece coating machine which comprises supporting plates, the tops of the supporting plates are connected with a support, one end of the support is connected with an air bellow, an inner cavity of the air bellow is provided with an exhaust fan, the bottom of the air bellow is provided with an exhaust pipe, a lower shaft rod and an upper shaft rod are arranged between the two supporting plates respectively, and the upper shaft rod is located above the lower shaft rod. A material box is arranged between the tops of the two supporting plates, a discharging pipe is connected to the bottom of the material box, and a coating roller is arranged at the bottom of the discharging pipe. Through cooperative use of the lower shaft rod, the upper shaft rod, the air bellow, the exhaust fan and the exhaust pipe, the air bellow is started, at the moment, the exhaust fan blows air through the exhaust pipe, dust attached to the surface of an electrode plate is removed, and the dust is prevented from affecting the coating effect; and after the device is arranged, dust can slide downwards, and therefore the dust cleaning effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery pole piece coating machine. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream.

[0003] After searching, in the prior art, the utility model with the publication number CN211376806U discloses a lithium battery electrode sheet coating device, including a frame, a feeding mechanism, a coating mechanism and a drying device, wherein the feeding mechanism, the coating mechanism and the drying device are all arranged on the frame, the feeding mechanism is arranged near the end of the frame, the drying device is arranged near the end of the frame and opposite to the feeding mechanism, and the coating mechanism is arranged between the feeding mechanism and the drying device; the frame includes a bottom plate, legs, a coating liquid tank and side plates, the legs are symmetrically arranged on the bottom wall of the bottom plate, the side plates are symmetrically arranged on the side walls of the bottom plate, the coating liquid tank is arranged on the bottom wall of the bottom plate and below the coating mechanism, and the coating liquid tank is a hollow cavity with an upper end opening and is connected to the bottom plate. The utility model belongs to the field of lithium battery production technology, and specifically refers to a lithium battery electrode sheet coating device that can limit and adjust the electrode sheet, and evenly distribute the coating liquid of the coating roller to improve the coating efficiency.

[0004] And the prior art, publication number is CN216678874U, a coating machine for lithium battery production.

[0005] The above-mentioned technical solutions, through different methods, make the use of lithium battery electrode coating machines more effective, but the above-mentioned methods still have the disadvantage of being inconvenient to clean the dust on the surface of the electrode during coating. When the electrode is processed, the dust floating in the factory is easy to fall on the surface of the electrode. If it is not cleaned in time, it will affect the quality of the electrode after coating. Utility Model Content

[0006] The purpose of the utility model is to provide a lithium battery pole piece coating machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a support plate, the top of the support plate is connected to a support, one end of the support is connected to a bellows, the inner cavity of the bellows is provided with an exhaust fan, the bottom of the bellows is provided with an exhaust duct, a lower shaft rod and an upper shaft rod are respectively provided between the two support plates, the upper shaft rod is located above the lower shaft rod, a material box is provided between the tops of the two support plates, the bottom of the material box is connected to a discharge pipe, and a paint roller is provided at the bottom of the discharge pipe.

[0008] Preferably, the lower shaft rod and the upper shaft rod are not on the same vertical line, and one end of the exhaust pipe is aligned with the upper part between the upper shaft rod and the lower shaft rod.

[0009] Preferably, a limiting shaft rod is further provided between the two support plates, the limiting shaft rod is located below the coating roller, and an electrode sheet is movably provided between the coating roller and the limiting shaft rod.

[0010] Preferably, a limit ring is provided on the inner wall of the bellows, and a filter plate is provided above the limit ring.

[0011] Preferably, a first gear rod is provided at one end of the paint roller, one end of the first gear rod is connected to a motor, the outer ring of the first gear rod is sleeved with a toothed belt, one end of the toothed belt is sleeved with a second gear rod, one end of the second gear rod is connected to a stirring rod, and the outer ring of the stirring rod is provided with a plurality of stirring blades.

[0012] Preferably, a base frame is provided between the bottoms of the two support plates, a collecting box is movably provided in the inner cavity of the base frame, a T-shaped handle is provided at one end of the collecting box, and the collecting box and the material box are in the same vertical line.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The lithium battery electrode coating machine uses a lower shaft, an upper shaft, a bellows, an exhaust fan and an exhaust duct. The bellows is started, and the exhaust fan blows air through the exhaust duct, thereby removing dust attached to the surface of the electrode sheet to prevent the dust from affecting the coating effect. Since the upper shaft is located above the lower shaft, the electrode sheet is in a bent state when passing under the exhaust duct. After this arrangement, the dust can slide downward, thereby improving the dust cleaning effect of the device.

[0015] 2. The lithium battery electrode coating machine uses a filter plate and a limit ring. The filter plate is located above the exhaust fan and can filter the airflow entering the bellows to prevent dust from being sucked into the exhaust fan and falling on the surface of the electrode, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structural cross-section of the utility model.

[0018] Figure 3 The utility model structure Figure 2 Front view diagram of .

[0019] Figure 4 It is a complete schematic diagram of the structural bellows of the utility model.

[0020] Figure 5 This is a schematic diagram of the installation of the electrode sheet of the utility model structure.

[0021] In the figure: 1. support plate; 2. support; 3. bellows; 4. limiting ring; 5. filter plate; 6. exhaust fan; 7. exhaust duct; 8. material box; 9. discharge pipe; 10. coating roller; 11. lower shaft rod; 12. upper shaft rod; 13. limiting shaft rod; 14. first gear rod; 15. toothed belt; 16. second gear rod; 17. motor; 18. base frame; 19. collection box; 20. T-shaped handle; 21. stirring rod; 22. stirring blade; 23. electrode sheet. DETAILED DESCRIPTION

[0022] 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.

[0023] Example: See Figure 1-5 The utility model provides a technical solution: a lithium battery pole piece coating machine, including a support plate 1, the top of the support plate 1 is connected to a support 2, one end of the support 2 is connected to a bellows 3, the inner cavity of the bellows 3 is provided with an exhaust fan 6, the bottom of the bellows 3 is provided with an exhaust pipe 7, a lower shaft rod 11 and an upper shaft rod 12 are respectively provided between the two support plates 1, the upper shaft rod 12 is located above the lower shaft rod 11, a material box 8 is provided between the tops of the two support plates 1, the bottom of the material box 8 is connected to a discharge pipe 9, and a coating roller 10 is provided at the bottom of the discharge pipe 9.

[0024] The lower shaft rod 11 and the upper shaft rod 12 are not on the same vertical line, and one end of the exhaust pipe 7 is aligned with the upper part between the upper shaft rod 12 and the lower shaft rod 11 .

[0025] A limiting shaft rod 13 is further arranged between the two support plates 1 . The limiting shaft rod 13 is located below the coating roller 10 . An electrode sheet 23 is movably arranged between the coating roller 10 and the limiting shaft rod 13 .

[0026] In this embodiment, refer to Figure 1 , three 5. When in use, the electrode sheet 23 is passed from the bottom of the lower shaft 11 around the top of the upper shaft 12, and then the electrode sheet 23 is passed through between the limiting shaft 13 and the coating roller 10 to complete the connection between the electrode sheet 23 and the device. The electrode sheet 23 is pulled by the external material collection roller and moved to the side of the material box 8 by the bellows 3. During this process, the bellows 3 is started. At this time, the exhaust fan 6 blows air through the exhaust pipe 7 to remove the dust attached to the surface of the electrode sheet 23 to prevent the dust from affecting the coating effect. Since the upper shaft 12 is located above the lower shaft 11, the electrode sheet 23 is in a bent state when passing under the exhaust pipe 7. After this arrangement, the dust can slide down, thereby improving the dust cleaning effect of the device.

[0027] A limit ring 4 is disposed on the inner wall of the bellows 3 , and a filter plate 5 is disposed above the limit ring 4 .

[0028] In this embodiment, refer to Figure 4 The filter plate 5 is located above the exhaust fan 6 and can filter the airflow entering the bellows 3 to prevent dust from being sucked into the exhaust fan 6 and falling on the surface of the electrode sheet 23, thereby improving the practicality of the device.

[0029] Among them, a first gear rod 14 is provided at one end of the coating roller 10, one end of the first gear rod 14 is connected to a motor 17, the outer ring of the first gear rod 14 is sleeved with a toothed belt 15, one end of the toothed belt 15 is sleeved with a second gear rod 16, one end of the second gear rod 16 is connected to a stirring rod 21, and the outer ring of the stirring rod 21 is provided with multiple stirring blades 22.

[0030] In this embodiment, coating material is stored in the material box 8. When the electrode sheet 23 passes between the coating roller 10 and the limiting shaft rod 13, it can be coated by the coating roller 10. During this process, the motor 17 is started. At this time, the motor 17 drives the coating roller 10 to rotate through the first gear rod 14, thereby ensuring that the outer ring of the coating roller 10 can always be attached with coating material, so that the coating treatment of the electrode sheet 23 is more uniform. When the first gear rod 14 rotates, the toothed belt 15 sleeved on its outer ring drives the stirring rod 21 to rotate through the second gear rod 16. At this time, the stirring rod 21 drives the stirring blade 22 to rotate in the inner cavity of the discharge pipe 9, thereby stirring the paint, making the mixing of the paint more uniform, thereby further improving the coating quality of the electrode sheet 23.

[0031] A base frame 18 is provided between the bottoms of the two support plates 1 , a collecting box 19 is movably provided in the inner cavity of the base frame 18 , a T-shaped handle 20 is provided at one end of the collecting box 19 , and the collecting box 19 and the material box 8 are in the same vertical line.

[0032] In this embodiment, the collection box 19 is used to collect and process the paint to prevent the paint from sliding off the two sides of the electrode sheet 23, thereby causing material waste or difficulty in cleaning. The staff can then take out the collection box 19 through the T-shaped handle 20 to process the paint, thereby improving the ease of use of the device.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] 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 lithium battery pole piece coating machine, comprising a support plate (1), characterized in that: The top of the support plate (1) is connected to a support (2), one end of the support (2) is connected to a bellows (3), the inner cavity of the bellows (3) is provided with an exhaust fan (6), the bottom of the bellows (3) is provided with an exhaust pipe (7), a lower shaft (11) and an upper shaft (12) are respectively provided between the two support plates (1), the upper shaft (12) is located above the lower shaft (11), a material box (8) is provided between the tops of the two support plates (1), the bottom of the material box (8) is connected to a discharge pipe (9), and a coating roller (10) is provided at the bottom of the discharge pipe (9).

2. A lithium battery pole piece coating machine according to claim 1, characterized in that: The lower shaft rod (11) and the upper shaft rod (12) are not on the same vertical line, and one end of the exhaust pipe (7) is aligned with the upper part between the upper shaft rod (12) and the lower shaft rod (11).

3. A lithium battery pole piece coating machine according to claim 1, characterized in that: A limiting shaft rod (13) is also provided between the two support plates (1), the limiting shaft rod (13) is located below the coating roller (10), and an electrode sheet (23) is movably provided between the coating roller (10) and the limiting shaft rod (13).

4. A lithium battery pole piece coating machine according to claim 1, characterized in that: The inner wall of the bellows (3) is provided with a limit ring (4), and a filter plate (5) is provided above the limit ring (4).

5. A lithium battery pole piece coating machine according to claim 1, characterized in that: A first gear rod (14) is provided at one end of the coating roller (10), one end of the first gear rod (14) is connected to a motor (17), an outer ring of the first gear rod (14) is sleeved with a toothed belt (15), one end of the toothed belt (15) is sleeved with a second gear rod (16), one end of the second gear rod (16) is connected to a stirring rod (21), and the outer ring of the stirring rod (21) is provided with a plurality of stirring blades (22).

6. A lithium battery pole piece coating machine according to claim 1, characterized in that: A base frame (18) is also provided between the bottoms of the two support plates (1), a collecting box (19) is movably provided in the inner cavity of the base frame (18), a T-shaped handle (20) is provided at one end of the collecting box (19), and the collecting box (19) and the material box (8) are located on the same vertical line.

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