Pole piece dedusting mechanism for pole piece production

Abstract

A pole piece dust removal mechanism for pole piece production comprises a base, a transmission device is arranged on the base, one end of the transmission device is in transmission connection with a driving device, the other end of the transmission device is in transmission connection with two dust removal brushes in a brush dust removal device, and the distance between the two dust removal brushes is adjusted. The transmission device is driven by the driving device to drive the two dust removal brushes to reversely rotate at the same speed so as to remove dust from the pole piece penetrating through the space between the two dust removal brushes; compared with the prior art, the distance between the two dust removal brushes is adjusted through the transmission device, the distance between the central axis of each dust removal brush and the central plane of the pole piece is increased when the pole piece is thick, and the distance between the central axis of each dust removal brush and the central plane of the pole piece is reduced when the pole piece is thin; therefore, the dedusting brush applies the same dedusting acting force on the surfaces of the pole pieces with different thicknesses to form the same dedusting area, the damage to the surfaces of the pole pieces is avoided, and the dedusting effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece production equipment, in particular to a pole piece dust removal mechanism for pole piece production. Background Technique

[0002] With the development and maturity of new energy technologies, the application of lithium batteries has become increasingly widespread. In the actual production process of lithium batteries, multiple production processes are involved, and multiple different production equipment is required to complete different production processes, ultimately realizing the production of lithium batteries. If the degree of equipment automation is low, a large number of manual workers are needed for auxiliary production, consuming a large amount of human, material and time costs, not only resulting in high production costs of lithium batteries, but also greatly reducing production efficiency. At the same time, manual auxiliary production is prone to human contact, introducing pollution sources and reducing the production quality of lithium batteries. For example, when removing dust attached to the surface of the pole piece, it is difficult for manual workers to ensure that the cleaning quality of each pole piece surface is consistent, and the cleaning efficiency will also be limited.

[0003] To solve the above problems, the Chinese patent with the application number 201921807236.0 discloses a dust removal device for the surface of lithium battery pole pieces. The disclosed dust removal device for the surface of lithium battery pole pieces drives the driving gear to rotate by a driving motor and drives the driven gear to rotate relatively, so that the dust removal brushes rotate towards each other to remove the dust attached to the surface of the pole piece. However, the disclosed dust removal device for the surface of lithium battery pole pieces cannot adjust the distance between two adjacent dust removal brushes. When the pole piece is relatively thick, the dust removal brush will squeeze the pole piece, easily scratching the surface of the pole piece; when the pole piece is relatively thin, the contact area between the dust removal brush and the surface of the pole piece decreases, resulting in poor dust removal effect. Content of the Utility Model

[0004] Aiming at the above deficiencies, the technical problem to be solved by the utility model is to provide a pole piece dust removal mechanism for pole piece production, which is used to adjust the distance between two adjacent dust removal brushes to adapt to pole pieces of different thicknesses and ensure the surface quality of pole pieces of different thicknesses.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a pole piece dust removal mechanism for pole piece production, including a base, a transmission device is arranged on the base, one end of the transmission device is in transmission connection with a driving device, and the other end of the transmission device is in transmission connection with two dust removal brushes in a brush dust removal device and adjusts the distance between the two dust removal brushes; the transmission device drives the two dust removal brushes to rotate in the same speed and in opposite directions under the drive of the driving device to remove dust from the pole piece passing between the two dust removal brushes.

[0006] As a preferred embodiment of the present utility model, the transmission device includes a wheel group transmission part, a locking and adjusting part, and a separating device; the wheel group transmission part is axially rotatably arranged on the locking and adjusting part, one end of the wheel group transmission part is in transmission connection with the driving device, and the other end is in transmission connection with two dust removal brushes.

[0007] As a preferred embodiment of the present utility model, the separating device is arranged above the locking and adjusting part, and the bottom of the separating device abuts against the top of the locking and adjusting part; the separating device moves along the height direction of the locking and adjusting part, driving the wheel group transmission part and the locking and adjusting part to move along the width direction of the locking and adjusting part.

[0008] As a preferred embodiment of the present utility model, the wheel group transmission part includes a first transmission gear, a second transmission gear, a first belt pulley, a second belt pulley, a third belt pulley, a fourth belt pulley, and a fifth belt pulley; the driving device is in shaft transmission connection with the first transmission gear, and the first transmission gear is in gear meshing transmission with the second transmission gear; the third belt pulley and the fifth belt pulley are respectively in shaft transmission connection with two dust removal brushes.

[0009] As a preferred embodiment of the present utility model, the first transmission gear is in shaft transmission connection with the first belt pulley, and the second transmission gear is in shaft transmission connection with the fourth belt pulley; the first belt pulley is in belt transmission connection with the second belt pulley, the second belt pulley is in belt transmission connection with the third belt pulley, and the fourth belt pulley is in belt transmission connection with the fifth belt pulley.

[0010] As a preferred embodiment of the present utility model, the locking and adjusting part includes two separable limiting components and two support vertical plates arranged along the length direction of the base; the separable limiting components are arranged between the two support vertical plates and are rotatably connected to the two support vertical plates; a tension spring is arranged between the two separable limiting components, and the tension spring pulls the two separable limiting components to approach each other.

[0011] As a preferred embodiment of the present utility model, the separable limiting component includes two rotating plates, and the two rotating plates are respectively rotatably connected to the two support vertical plates; a connecting plate is fixedly arranged between the two rotating plates.

[0012] As a preferred embodiment of the present utility model, the separable limiting component is provided with a tension spring fixing bolt and a separating roller; both ends of the tension spring are respectively connected to the two tension spring fixing bolts; both sides of the separating device are respectively abutted against the two separating rollers.

[0013] As a preferred embodiment of the present utility model, the separating device includes a driving cylinder and a separating inclined block, and the driving cylinder drives the separating inclined block to perform linear reciprocating motion.

[0014] As a preferred embodiment of the present utility model, the brush dust removal device further includes a dust removal outer cover, and a dust removal channel for the electrode plate to pass through is provided in the middle of the dust removal outer cover; a dust removal pipe is provided below the dust removal outer cover, and the dust removal pipe connects the inside and outside of the dust removal outer cover.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The distance between the two dust removal brushes is adjusted through the transmission device. When the electrode plate is thicker, the distance from the central axis of the dust removal brush to the central plane of the electrode plate is increased; when the electrode plate is thinner, the distance from the central axis of the dust removal brush to the central plane of the electrode plate is decreased, so that the dust removal brush applies the same magnitude of dust removal force on the surfaces of electrode plates with different thicknesses, forming the same dust removal area, avoiding damage to the surface of the electrode plate and ensuring the dust removal effect. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of an electrode plate dust removal mechanism for electrode plate production provided by an embodiment of the present application;

[0017] Figure 2 It is a schematic structural diagram of an electrode plate dust removal mechanism for electrode plate production provided by an embodiment of the present application;

[0018] Figure 3 It is a schematic structural diagram of a wheel set transmission part provided by an embodiment of the present application;

[0019] Figure 4 It is a schematic structural diagram of a locking and adjusting part provided by an embodiment of the present application;

[0020] Figure 5 It is a schematic structural diagram of a separation device provided by an embodiment of the present application;

[0021] Figure 6 It is a schematic structural diagram of a brush dust removal device provided by an embodiment of the present application;

[0022] Figure 7 It is a cross-sectional view of an electrode plate dust removal mechanism for electrode plate production provided by an embodiment of the present application;

[0023] Reference numerals: base 1, transmission device 2, wheel set transmission part 2-1, first transmission gear 2-11, second transmission gear 2-12, first belt pulley 2-13, second belt pulley 2-14, third belt pulley 2-15, fourth belt pulley 2-16, fifth belt pulley 2-17, locking and adjusting part 2-2, split limiting component 2-21, rotating plate 2-211, connecting plate 2-212, supporting vertical plate 2-22, tension spring 2-23, tension spring fixing bolt 2-24, separating roller 2-25, separation device 2-3, driving cylinder 2-31, separating inclined block 2-32, driving device 3, brush dust removal device 4, dust removal brush 4-1, dust removal outer cover 4-2, dust removal channel 4-21, dust removal pipe 4-3. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0025] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the functions and arrangements of the described elements without departing from the scope of the content of the present application. Each example may appropriately omit, substitute, or add various processes or components. For example, the described methods may be performed in a different order than the described order, and various steps may be added, omitted, or combined. In addition, the features described in some examples may be combined into other examples.

[0026] Please refer to Figure 1 , Figure 1 , which shows a schematic structural diagram of a dust removal mechanism for a pole piece in the embodiments of the present application. As Figure 1 shown, a dust removal mechanism for a pole piece in pole piece production includes a base 1, a transmission device 2 is arranged on the base 1, one end of the transmission device 2 is in transmission connection with a driving device 3, and the other end of the transmission device 2 is in transmission connection with two dust removal brushes 4-1 in the brush dust removal device 4 and adjusts the distance between the two dust removal brushes 4-1; the transmission device 2 drives the two dust removal brushes 4-1 to rotate in the same speed and in opposite directions under the drive of the driving device 3 to remove dust from the pole piece passing between the two dust removal brushes 4-1.

[0027] Specifically, one end of the transmission device 2 far from the driving device 3 is connected to the two dust removal brushes 4-1. The transmission device 2 converts the single-direction rotation input by the driving device 3 into the same-speed reverse rotation between the two dust removal brushes 4-1, so that the two dust removal brushes 4-1 can produce the same dust removal effect on both sides of the pole piece passing between them; the distance between the two dust removal brushes 4-1 is adjusted through the transmission device 2. When the pole piece is thicker, the distance from the central axis of the dust removal brush 4-1 to the central plane of the pole piece is increased, and when the pole piece is thinner, the distance from the central axis of the dust removal brush 4-1 to the central plane of the pole piece is decreased, so that the dust removal brush 4-1 exerts the same magnitude of dust removal force on the surfaces of pole pieces with different thicknesses, forming the same dust removal area, avoiding damage to the surface of the pole piece and ensuring the dust removal effect.

[0028] Preferably, the transmission device 2 includes a wheel set transmission part 2-1, a locking and adjusting part 2-2, and a separating device 2-3; the wheel set transmission part 2-1 is axially rotatably arranged on the locking and adjusting part 2-2. One end of the wheel set transmission part 2-1 is in transmission connection with the driving device 3, and the other end is in transmission connection with the two dust removal brushes 4-1, and is used to convert the single-direction rotation input by the driving device 3 into the same-speed reverse rotation between the two dust removal brushes 4-1.

[0029] Preferably, the separating device 2-3 is arranged above the locking and adjusting part 2-2. The bottom of the separating device 2-3 abuts against the top of the locking and adjusting part 2-2. The wheel set transmission part 2-1 is rotatably arranged on the locking and adjusting part 2-2, and the locking and adjusting part 2-2 limits and adjusts the position of the wheel set transmission part 2-1. The separating device 2-3 moves along the height direction of the locking and adjusting part 2-2, driving the wheel set transmission part 2-1 and the locking and adjusting part 2-2 to move along the width direction of the locking and adjusting part 2-2.

[0030] Preferably, the wheel set transmission part 2-1 includes a first transmission gear 2-11, a second transmission gear 2-12, a first belt pulley 2-13, a second belt pulley 2-14, a third belt pulley 2-15, a fourth belt pulley 2-16 and a fifth belt pulley 2-17. The driving device 3 is axially connected to the first transmission gear 2-11 for transmission, and the first transmission gear 2-11 is axially connected to the first belt pulley 2-13 for transmission. Therefore, the driving device 3 can drive the first transmission gear 2-11 and the first belt pulley 2-13 to rotate synchronously at the same speed and in the same direction. The first transmission gear 2-11 is in meshing transmission with the second transmission gear 2-12, and the second transmission gear 2-12 rotates synchronously at the same speed and in the opposite direction under the drive of the first transmission gear 2-11. Since the second transmission gear 2-12 is axially connected to the fourth belt pulley 2-16 for transmission, the second transmission gear 2-12 drives the fourth belt pulley 2-16 to rotate synchronously at the same speed and in the same direction. At this time, the fourth belt pulley 2-16 rotates at the same speed and in the opposite direction relative to the first transmission gear 2-11.

[0031] Furthermore, the first belt pulley 2-13 is connected to the second belt pulley 2-14 by belt transmission, and the second belt pulley 2-14 is connected to the third belt pulley 2-15 by belt transmission. Therefore, both the second belt pulley 2-14 and the third belt pulley 2-15 can rotate at the same speed and in the same direction relative to the first transmission gear 2-11 under the drive of the first belt pulley 2-13. The fourth belt pulley 2-16 is connected to the fifth belt pulley 2-17 by belt transmission, and the fifth belt pulley 2-17 rotates at the same speed and in the opposite direction relative to the first transmission gear 2-11 under the drive of the fourth belt pulley 2-16. The third belt pulley 2-15 and the fifth belt pulley 2-17 are respectively axially connected to two dust removal brushes 4-1. At this time, the two dust removal brushes 4-1 can rotate at the same speed and in the opposite direction to remove dust from the surface of the pole piece.

[0032] Furthermore, the third belt pulley 2-15 and the fifth belt pulley 2-17 are symmetrically arranged with respect to the first transmission gear 2-11. Through the cooperation of multiple transmission gears and multiple belt pulleys, the sizes of the first transmission gear 2-11 and the second transmission gear 2-12 are reduced, thereby optimizing the overall space occupied by the wheel set transmission part 2-1.

[0033] Preferably, the locking adjustment part 2-2 includes two separable limiting components 2-21 and two supporting vertical plates 2-22 arranged along the length direction of the base 1; the separable limiting components 2-21 are arranged between the two supporting vertical plates 2-22 and are rotatably connected to the two supporting vertical plates 2-22; the third belt pulley 2-15 and the fifth belt pulley 2-17 are respectively rotatably arranged on the two separable limiting components 2-21 in the axial direction, and the third belt pulley 2-15 and the fifth belt pulley 2-17 move in the radial direction respectively driven by the two separable limiting components 2-21 to drive the two dust removal brushes 4-1 to move away from or close to each other. A tension spring 2-23 is arranged between the two separable limiting components 2-21, and the tension spring 2-23 pulls the two separable limiting components 2-21 so that the two separable limiting components 2-21 always have a tendency to approach each other.

[0034] Preferably, the separable limiting component 2-21 includes two rotating plates 2-211, the two rotating plates 2-211 are arranged along the length direction of the locking adjustment part 2-2, and the two rotating plates 2-211 are respectively rotatably connected to the two supporting vertical plates 2-22; a connecting plate 2-212 is fixedly arranged between the two rotating plates 2-211, and the two rotating plates 2-211 and the connecting plate 2-212 move synchronously.

[0035] Preferably, the separable limiting component 2-21 is provided with a tension spring fixing bolt 2-24 and a separating roller block 2-25; both ends of the tension spring 2-23 are respectively connected to the two tension spring fixing bolts 2-24, and the tension spring 2-23 makes the two separable limiting components 2-21 always have a tendency to approach each other; both sides of the separating device 2-3 are respectively abutted against the two separating roller blocks 2-25, and the separating device 2-3 makes the two separable limiting components 2-21 always have a tendency to move away from each other; the two separable limiting components 2-21 are in a balanced position under the action of the tension spring 2-23 and the separating device 2-3.

[0036] Preferably, the separating device 2-3 includes a driving cylinder 2-31 and a separating inclined block 2-32, and the driving cylinder 2-31 drives the separating inclined block 2-32 to perform a linear reciprocating motion. Both sides of the separating inclined block 2-32 are respectively abutted against the two separating roller blocks 2-25. When the separating inclined block 2-32 moves in the direction close to the separating roller blocks 2-25, the two separating roller blocks 2-25 are pushed apart, synchronously driving the two separable limiting components 2-21 to move away from each other, so that the two dust removal brushes 4-1 respectively arranged on the two separable limiting components 2-21 move away from each other; when the separating inclined block 2-32 moves in the direction away from the separating roller blocks 2-25, the two separable limiting components 2-21 approach each other under the action of the tension spring 2-23, so that the two dust removal brushes 4-1 respectively arranged on the two separable limiting components 2-21 approach each other.

[0037] Preferably, the brush dust removal device 4 further includes a dust removal outer cover 4-2, which collects the dust cleaned by the dust removal brush 4-1 to prevent the dust from flowing into the external environment. A dust removal passage 4-21 for the electrode sheet to pass through is provided in the middle of the dust removal outer cover 4-2, and a dust removal pipe 4-3 is provided below the dust removal outer cover 4-2. The dust removal pipe 4-3 connects the inside of the dust removal outer cover 4-2 with the dust suction device outside the dust removal outer cover 4-2 to clean the dust in the dust removal outer cover 4-2.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0039] Although the terms such as base 1, transmission device 2, wheel set transmission part 2-1, first transmission gear 2-11, second transmission gear 2-12, first belt pulley 2-13, second belt pulley 2-14, third belt pulley 2-15, fourth belt pulley 2-16, fifth belt pulley 2-17, locking adjustment part 2-2, separable limit assembly 2-21, rotating plate 2-211, connecting plate 2-212, supporting vertical plate 2-22, tension spring 2-23, tension spring fixing bolt 2-24, separating roller 2-25, separating device 2-3, driving cylinder 2-31, separating inclined block 2-32, driving device 3, brush dust removal device 4, dust removal brush 4-1, dust removal outer cover 4-2, dust removal passage 4-21, dust removal pipe 4-3 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A dust removal mechanism for pole pieces used in pole piece production, characterized in that, It includes a base (1) on which a transmission device (2) is arranged. One end of the transmission device (2) is in transmission connection with a driving device (3), and the other end of the transmission device (2) is in transmission connection with two dust removal brushes (4-1) in the brush dust removal device (4) and adjusts the distance between the two dust removal brushes (4-1). Driven by the driving device (3), the transmission device (2) drives the two dust removal brushes (4-1) to rotate in the same speed and opposite directions to remove dust from the pole piece passing through between the two dust removal brushes (4-1).

2. The dust removal mechanism for the electrode sheet used in the production of electrode sheets according to claim 1, wherein, The transmission device (2) includes a wheel set transmission part (2-1), a locking and adjusting part (2-2) and a separating device (2-3). The wheel set transmission part (2-1) is rotatably arranged on the locking and adjusting part (2-2). One end of the wheel set transmission part (2-1) is in transmission connection with the driving device (3), and the other end is in transmission connection with the two dust removal brushes (4-1).

3. The dust removing mechanism for the pole piece production according to claim 2, characterized in that, The separating device (2-3) is arranged above the locking and adjusting part (2-2), and the bottom of the separating device (2-3) abuts against the top of the locking and adjusting part (2-2). The separating device (2-3) moves along the height direction of the locking and adjusting part (2-2), driving the wheel set transmission part (2-1) and the locking and adjusting part (2-2) to move along the width direction of the locking and adjusting part (2-2).

4. A pole piece dust removal mechanism for pole piece production according to claim 2, characterized in that, The wheel set transmission part (2-1) includes a first transmission gear (2-11), a second transmission gear (2-12), a first transmission pulley (2-13), a second transmission pulley (2-14), a third transmission pulley (2-15), a fourth transmission pulley (2-16) and a fifth transmission pulley (2-17). The driving device (3) is in shaft transmission connection with the first transmission gear (2-11), and the first transmission gear (2-11) is in gear meshing transmission with the second transmission gear (2-12). The third transmission pulley (2-15) and the fifth transmission pulley (2-17) are respectively in shaft transmission connection with the two dust removal brushes (4-1).

5. The electrode dust removal mechanism for electrode production according to claim 4, characterized in that, The first transmission gear (2-11) is in shaft transmission connection with the first transmission pulley (2-13), and the second transmission gear (2-12) is in shaft transmission connection with the fourth transmission pulley (2-16). The first transmission pulley (2-13) is in belt transmission connection with the second transmission pulley (2-14), the second transmission pulley (2-14) is in belt transmission connection with the third transmission pulley (2-15), and the fourth transmission pulley (2-16) is in belt transmission connection with the fifth transmission pulley (2-17).

6. The polar plate dust removal mechanism for polar plate production according to claim 2, wherein, The locking and adjusting part (2-2) includes two separable limiting components (2-21) and two supporting vertical plates (2-22) arranged along the length direction of the base (1). The separable limiting components (2-21) are arranged between the two supporting vertical plates (2-22) and are rotatably connected with the two supporting vertical plates (2-22). A tension spring (2-23) is arranged between the two separable limiting components (2-21), and the tension spring (2-23) pulls the two separable limiting components (2-21) to approach each other.

7. The sheet dust removal mechanism for sheet production according to claim 6, characterized in that, The split limit component (2-21) includes two rotating plates (2-211), and the two rotating plates (2-211) are respectively rotatably connected to the two supporting vertical plates (2-22); a connecting plate (2-212) is fixedly arranged between the two rotating plates (2-211).

8. A pole piece dust removal mechanism for pole piece production according to claim 6, characterized in that, A spring fixing bolt (2-24) and a separating roller block (2-25) are arranged on the split limit component (2-21); two ends of a tension spring (2-23) are respectively connected to the two spring fixing bolts (2-24); two sides of the separating device (2-3) are respectively abutted against the two separating roller blocks (2-25).

9. The sheet dust removal mechanism for sheet production according to claim 2, characterized in that, The separating device (2-3) includes a driving cylinder (2-31) and a separating inclined block (2-32), and the driving cylinder (2-31) drives the separating inclined block (2-32) to perform linear reciprocating motion.

10. The polar plate dust removal mechanism for polar plate production according to claim 1, characterized in that, The brush dust removal device (4) further includes a dust removal outer cover (4-2), a dust removal channel (4-21) for the pole piece to pass through is arranged in the middle of the dust removal outer cover (4-2); a dust removal pipe (4-3) is arranged below the dust removal outer cover (4-2), and the dust removal pipe (4-3) connects the inside and the outside of the dust removal outer cover (4-2).

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