Dust removal mechanism and pole piece dust removal device

Abstract

The utility model discloses a dust removal mechanism and a pole piece dust removal device, and belongs to the technical field of lithium battery production equipment. The dust removal mechanism comprises two mounting plates, and a dust collection assembly and a dust removal assembly which are independent of each other, are arranged side by side and are detachably connected to the two mounting plates, the dust collection assembly and the dust removal assembly have an adjustable transverse distance measured in the side-by-side direction, and the dust removal assembly is used for blowing away dust on the pole pieces through electrostatic particle removing wind; and the blown dust is sucked by the dust suction assembly. The dust removal mechanism can remove dust and the like on the surface of the battery pole piece with a better effect.

Description

Technical Field

[0001] This application belongs to the technical field of lithium battery production equipment. Specifically, this application relates to a dust removal mechanism and a pole piece dust removal device. Background Art

[0002] During the production process of lithium batteries, the pole pieces and separators need to be combined in a predetermined order by winding or laminating. Before winding or laminating, the impurities attached to the surface of the pole pieces or separators need to be removed to avoid adverse effects on subsequent processing. It is known that the existing commercially available integrated pole piece dust removal equipment blows the dust on the surface of the pole piece through a blowing mechanism and then sucks the dust away through a suction mechanism. However, this integrated pole piece dust removal equipment is not easy to replace the blowing mechanism or the suction mechanism separately, resulting in high replacement costs after a failure, and there may be a situation where the anti-static particles are sucked away before acting on the object to be dusted. Summary of the Utility Model

[0003] The solution of the example of this application is implemented in the following way:

[0004] In a first aspect, the present disclosure proposes a dust removal mechanism, which includes two mounting plates, and a dust suction component and a dust removal component that are independent of each other and arranged side by side. The two ends of the dust suction component and the dust removal component are respectively detachably mounted on the two mounting plates, and the dust suction component and the dust removal component have a lateral spacing measured in the side-by-side direction and the lateral spacing is adjustable;

[0005] The dust removal component includes a dust removal frame and an anti-static particle generator installed inside the dust removal frame. The anti-static particle generator is used to generate anti-static particle wind acting on the object to be dusted;

[0006] The dust suction component includes a dust suction cavity and a dust suction port that are interconnected. The dust suction cavity is used to suck the dust blown up by the dust removal component through the dust suction port;

[0007] The lateral spacing is configured to prevent the anti-static particles generated by the anti-static particle generator from being sucked away by the dust suction port before acting on the object to be dusted.

[0008] By constructing the dust removal component and the dust suction component separately, it is thus possible to allow the two to be arranged side by side, and a lateral spacing in the side-by-side direction and adjustable is also designed. This lateral spacing enables the dust removal component and the dust suction component to have a sufficient distance, so that the anti-static particle wind generated by the dust removal component can act on the object to be dusted without being "intercepted" by the dust suction component midway, to ensure the effect of static electricity removal.

[0009] Therefore, this dust removal mechanism can enable the dust on the surface of the pole piece to effectively separate from the object to be dusted under the action of the anti-static particle wind, and then be sucked by the dust suction component to complete the dust removal process.

[0010] Optionally, the dust removal rack has a receiving groove, the receiving groove is strip-shaped, the static eliminator particle generator is an ion rod, and the ion rods are arranged along the length direction of the receiving groove.

[0011] By providing the receiving groove, it is convenient for the installation of the ion rod and further increases the distance between the ion rod and the dust suction assembly.

[0012] Optionally, the dust removal assembly further includes a connecting block that is connected to both the static eliminator particle generator and the dust removal rack, and the static eliminator particle generator is suspended in the receiving groove through the connecting block.

[0013] Suspending the static eliminator particle generator in the receiving groove through the connecting block facilitates the installation and replacement of the static eliminator particle generator.

[0014] Optionally, the mounting plate is connected with an adjusting bolt for adjusting the height of the dust removal mechanism. The first end of the adjusting bolt abuts against the mounting plate, and the height of the mounting plate can be adjusted by rotating the second end of the adjusting bolt.

[0015] By providing the adjusting bolt to adjust the height of the mounting plate, the distance between the entire dust removal mechanism and the object to be dusted can be adjusted.

[0016] Optionally, the dust removal rack is provided with an air inlet, a blowing cavity and a dust blowing port that are interconnected. The air inlet is connected to an external air source, and the air flow provided by the external air source is blown out through the air inlet, the blowing cavity and the dust blowing port. The dust blowing port is arranged close to the static eliminator particle generator.

[0017] By providing a dust blowing port on the dust removal rack that is close to the static eliminator particle generator, the plasma wind can be blown farther to improve the dust removal effect.

[0018] Optionally, the dust blowing port is a strip-shaped opening, and there are two dust blowing ports provided on the dust removal rack, and the two dust blowing ports are respectively located on both sides of the static eliminator particle generator.

[0019] By providing dust blowing ports on both sides of the static eliminator particle generator, the plasma wind can be blown more evenly towards the object to be dusted.

[0020] Optionally, the dust suction port is a slender slit-shaped, and the extending trajectory of the dust suction port is linear, curved or zigzag;

[0021] And / or, there are two dust suction assemblies, and the two dust suction assemblies are respectively arranged on both sides of the dust removal rack.

[0022] By using dust suction ports of different shapes to adapt to different working conditions, and additionally providing two dust suction assemblies, the dust removal efficiency and the dust removal effect are improved.

[0023] Optionally, the dust removal mechanism further includes a metal dust adsorption assembly, and the metal dust adsorption assembly is detachably mounted on the side of the dust suction assembly away from the dust removal assembly.

[0024] By detachably arranging a metal dust adsorption component, the dust removal mechanism involved in the present application can remove metal dust.

[0025] Optionally, the metal dust adsorption component includes a magnetic adsorbent and a mounting seat. The mounting seat is installed on the side of the dust suction component away from the dust removal component with adjustable height. A support groove for supporting the magnetic adsorbent is formed on the mounting seat, and the magnetic adsorbent is detachably installed on the support groove.

[0026] By arranging the magnetic adsorbent on the mounting seat to be adjustable in position on the dust suction component, the structure is simple and the dust removal effect is good.

[0027] In a second aspect, the present disclosure proposes a pole piece dust removal device based on the dust removal mechanism in the above first aspect. The pole piece dust removal device includes two dust removal mechanisms, which are respectively located on both sides of the pole piece conveying path and are arranged in a staggered manner to respectively remove dust from both sides of the pole piece conveyed on the pole piece conveying path.

[0028] By arranging two dust removal mechanisms on the pole piece dust removal device to respectively remove dust from the front and back sides of the pole piece, the dust removal efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] For a clearer illustration, the following will briefly introduce the drawings required for the description.

[0030] Figure 1 Schematic structural diagram of the dust removal mechanism in the example of the present application;

[0031] Figure 2 Disclosed Figure 1 Bottom view structural diagram of the shown dust removal mechanism;

[0032] Figure 3 Disclosed Figure 1 Bottom view structural diagram of the dust removal component in the shown dust removal mechanism;

[0033] Figure 4 Disclosed Figure 1 Top view structural diagram of the dust removal component in the shown dust removal mechanism.

[0034] Description of the reference numerals:

[0035] 100 - Dust removal mechanism,

[0036] 101 - Dust suction component, 1011 - Suction port, 1012 - Dust suction port,

[0037] 102 - Dust removal component, 1021 - Adjusting bolt, 1022 - Connecting block, 1023 - Dust blowing port, 1024 - Accommodating groove, 1025 - Ion rod, 1026 - Air inlet,

[0038] 103 - mounting plate,

[0039] 104 - metal powder adsorption assembly, 1041 - mounting base, 1042 - stopper, 1043 - magnetic adsorbent, 1044 - waist-shaped hole. Detailed implementation manner

[0040] In the production process of lithium batteries, whether it is the winding or stacking process, there are high cleanliness requirements for the raw materials of lithium batteries. If there is dust on the surface of the electrode sheet or diaphragm, it may cause the produced battery cells to short-circuit. Therefore, it is necessary to remove dust from the materials before winding or stacking. In this application, the applicant proposes a new dust removal mechanism in view of the defects that in the known dust removal solutions, the dust suction and dust removal devices adopt an integrated structure design and the distance between the two is too close.

[0041] As mentioned before, in the production process of lithium batteries, taking the electrode sheet as an example, the electrode sheet is transported and loaded in a roll, and impurities may adhere to the surface of the electrode sheet wound layer by layer in a roll. This impurity will affect battery production operations such as winding or stacking of the electrode sheet, thus having an adverse impact on winding or stacking and subsequent other processes.

[0042] Therefore, it is necessary to remove dust from the surface of the electrode sheet. The dust removal treatment can include two main steps: blowing the dust off and sucking away the blown dust. As far as the applicant knows, in the known commercially available devices, the devices that achieve the above functions are all of an integrated structure, that is, an integrated electrode sheet dust removal device.

[0043] This integrated electrode sheet dust removal device blows the dust on the surface of the electrode sheet off through a blowing mechanism and then sucks the dust away through a suction mechanism. However, this integrated electrode sheet dust removal device is not easy to replace the blowing mechanism or the suction mechanism separately, resulting in the need to replace the whole after a failure, leading to a very high replacement cost.

[0044] What's more serious is that in such an integrated electrode sheet dust removal device, the distance between the blowing mechanism and the suction mechanism is very close, and as a result, the wind blown out by the blowing mechanism is sucked away by the suction mechanism before reaching the electrode sheet, thus severely affecting the dust removal effect.

[0045] In view of the above problems, a dust removal device is disclosed in this application. Generally speaking, the dust removal device in the example of this application adopts a split design for the blowing mechanism and the suction mechanism in terms of function, and the distance between the two is designed to be adjustable.

[0046] In this way, the split design facilitates replacement and repair after a failure, thus reducing the usage cost. Meanwhile, the distance between the blowing mechanism and the suction mechanism is adjustable, which can prevent the problem that the wind blown by the blowing mechanism is sucked away by the suction mechanism before it acts on the object to be dust-removed.

[0047] To implement the above dust removal device, the present application discloses an example, namely, a dust removal mechanism 100. Please refer to Figures 1 to 4 .

[0048] Refer to Figure 1 and Figure 2 , the dust removal mechanism 100 includes two mounting plates 103, as well as a dust suction component 101 and a dust removal component 102. Moreover, both ends of the dust suction component 101 and the dust removal component 102 are respectively mounted on the two mounting plates 103.

[0049] The two mounting plates 103 are arranged face to face and are spaced apart by an appropriate distance. This distance is defined by the lengths of the dust suction component 101 and the dust removal component 102.

[0050] The dust suction component 101 and the dust removal component 102 are independent of each other and are detachably connected to the two mounting plates 103, so that they can be separately disassembled.

[0051] Moreover, the dust suction component 101 and the dust removal component 102 are also arranged side by side. To control the distance between the dust suction component 101 and the dust removal component 102, the dust suction component 101 and the dust removal component 102 have a lateral spacing measured in the side-by-side direction and the lateral spacing is adjustable. For example, kidney-shaped holes can be provided on the mounting plate (thus having a certain length dimension). In this way, by adjusting the mounting positions of the dust suction component 101 and the dust removal component 102 with respect to the mounting plate in the length dimension direction of the kidney-shaped holes, the lateral spacing between the dust suction component 101 and the dust removal component 102 is adjusted.

[0052] The lateral spacing is configured to prevent the static-eliminating particles generated by the static-eliminating particle generator from being sucked away by the dust suction port 1012 before acting on the object to be dust-removed. Therefore, by purposefully selecting this lateral spacing, mutual interference between the dust suction component 101 and the dust removal component 102 can be avoided to ensure the dust removal effect of dust blowing and the sucked-away of the blown dust.

[0053] As an example of the dust removal component 102 for blowing off the dust on the surface of the pole piece, the dust removal component 102 is provided with a static-eliminating particle generator. The static-eliminating particle generator is used to generate static-eliminating particle wind acting on the object to be dust-removed. Therefore, the dust removal component 102 includes a dust removal frame and a static-eliminating particle generator installed inside the dust removal frame. That is, it can be considered that the dust on the surface of the pole piece is adsorbed by static electricity. Correspondingly, the dust can be detached / desorbed from the surface of the pole piece by neutralizing the static electricity.

[0054] To control the volume of the dust removal mechanism 100, avoid its excessive volume, and facilitate the use of the dust removal mechanism 100 as a whole, a receiving groove 1024 can be provided on the dust removal frame. Therefore, the static eliminator particle generator can be arranged in the receiving groove 1024.

[0055] Considering the length and width of the electrode plate, the receiving groove 1024 can be designed to be strip-shaped, and correspondingly, the static eliminator particle generator is exemplified as an ion bar 1025. Therefore, the ion bars 1025 are arranged along the length direction of the receiving groove 1024, as Figure 2 and Figure 3 shown.

[0056] The ion bars 1025 can be limited / supported in the receiving groove 1024 by fixing members (such as support columns in some examples) provided in the receiving groove 1024. Alternatively, in other examples, the ion bars 1025 can also be fixed in the receiving groove 1024 in a suspended manner. Therefore, the dust removal assembly 102 can further include a connecting block 1022 that is connected to both the static eliminator particle generator and the dust removal frame, and the static eliminator particle generator is suspended in the receiving groove 1024 through the connecting block 1022.

[0057] Both ends of the connecting block 1022 are connected to the dust removal frame, and the connecting block 1022 spans the receiving groove 1024 in the width direction of the receiving groove 1024. Further, a T-shaped nut is provided in the middle of the connecting block 1022, and the ion bar 1025 is connected by using the T-shaped nut, and the ion bar 1025 is hoisted in the receiving groove 1024 in the middle of the dust removal frame in cooperation with the connecting block 1022.

[0058] When the dust removal assembly 102 blows off the dust on the surface of the electrode plate in the form of ion wind, the ion wind is usually relatively small - that is, the acting force of the ion wind is weak. Therefore, the ion wind may not be able to blow onto the electrode plate. In view of this, in some improved examples, the dust removal frame of the dust removal assembly 102 can also be provided with an air inlet 1026, a blowing cavity, and a dust blowing port 1023 that communicate with each other - which can be described as a wind force enhancing mechanism, as Figure 2 and Figure 4 shown.

[0059] Among them, the air inlet 1026 is connected to an external air source (not shown). The air flow provided by the external air source can be blown out through the air inlet 1026, the blowing cavity, and the dust blowing port 1023. And, the dust blowing port 1023 is arranged close to the static eliminator particle generator, so that the wind blown out from the dust blowing port 1023 can be mixed with the ion wind and blown onto the electrode plate under the dust removal assembly 102 to blow off the dust on its surface.

[0060] In specific implementation, holes can be opened on the upper and lower surfaces of both side walls of the dust removal frame in the width direction of the accommodation groove 1024, and a cavity structure can be opened inside to form the structure of the air inlet 1026, the blowing cavity, and the dust blowing port 1023.

[0061] In particular, considering the slender structure of the ion rod 1025, the dust blowing port 1023 can be designed as a strip-shaped opening to increase the wind speed, make the wind force stronger, and thus it is easier to act on the surface of the striking electrode plate.

[0062] To further improve the blowing force and the ability to carry the ionic wind, two dust blowing ports 1023 can be provided on the dust removal frame, and the two dust blowing ports 1023 can be respectively located on both sides of the static electricity removing particle generator. Setting the dust blowing ports 1023 on both sides of the static electricity removing particle generator can standardize the movement path of the ionic wind, make the ionic wind more uniform, and also significantly increase the reachable distance of the ionic wind.

[0063] In addition to the above solution of increasing the dust blowing port 1023 to improve the power of the ionic wind so that it can reach a farther position, in some examples, the structure can also be designed so that the position of the dust removal mechanism 100 can be adjusted. In this way, when the ionic wind can reach a position relatively close to the electrode plate, in addition to blowing the ionic wind through the dust blowing port 1023, the distance between the dust removal mechanism 100 and the electrode plate can also be shortened by adjusting the position (such as the height) of the dust removal mechanism 100. Or, in other cases, the solution of increasing the dust blowing port 1023 and adjusting the height of the dust removal mechanism 100 can be adopted simultaneously.

[0064] To achieve the purpose of adjusting the height of the dust removal mechanism 100, an adjusting bolt 1021 for adjusting the height of the dust removal mechanism 100 can be connected to the mounting plate 103. For example, in specific implementation, the first end of the adjusting bolt 1021 abuts against the mounting plate 103, and the second end of the adjusting bolt 1021 is an operating component for adjustment. Therefore, in specific use, the height of the mounting plate 103 can be adjusted by rotating the second end of the adjusting bolt 1021.

[0065] The above content mainly discusses the structure of the dust removal component 102, and the dust suction component 101 will be discussed in more detail below.

[0066] In the example, the dust suction component 101 includes a dust suction cavity (not shown) and a dust suction port 1012 that are interconnected. The dust suction cavity is used to suck the dust blown up by the dust removal component 102 through the dust suction port 1012. Further, as a structure for providing suction force, the dust suction component 101 is also provided with a suction port 1011, and both ends of the dust suction cavity are respectively communicated with the suction port 1011 and the dust suction port 1012.

[0067] To improve the dust suction effect, two sets of dust suction components 101 can be configured and arranged on both sides of the dust removal component 102 (more specifically, on both sides of the dust removal rack), so as to avoid the dust on the other side not being effectively sucked and collected when the dust suction component 101 is configured on one side only.

[0068] As a beneficial improvement and attempt, the dust suction port 1012 can be designed to be in the shape of a slender slit to increase the wind pressure at the dust suction port. On this basis, the extension trajectory of the dust suction port 1012 can be selected as a straight line, a curve or a broken line, as Figure 2 shown. Among these structural forms of the dust suction port 1012, the broken line type can increase the relative area of dust suction, while the slender design can increase the suction force.

[0069] In the above solutions, mainly the blowing of dust from the pole piece and the suction of dust are considered. However, when the dust contains relatively heavy components, or some components that need to be particularly concerned or separated, corresponding structural designs can be made in the dust removal mechanism 100.

[0070] For example, when there are metal scraps in the dust, special treatment operations may be required. For example, the dust removal mechanism 100 can also include a metal dust adsorption component. Exemplarily, the metal dust adsorption component is detachably mounted on the side of the dust suction component 101 away from the dust removal component 102, such as the outermost side in the side-by-side direction of the dust removal component 102 and the dust suction component 101.

[0071] Similar to the reasons for setting two dust removal components 102 and two dust blowing ports 1023 mentioned above, in some examples, two sets of metal dust adsorption components can also be configured. And the two sets of metal dust adsorption components are respectively arranged on both sides of the dust removal mechanism 100.

[0072] In specific implementation, the metal dust adsorption component includes a magnetic adsorbent 1043 and a mounting seat 1041. Among them, the mounting seat 1041 is connected to the dust suction component 101, and the magnetic adsorbent 1043 is attached to the mounting seat 1041.

[0073] For example, the mounting seat 1041 is height-adjustably mounted on the side of the dust suction component 101 away from the dust removal component 102, and a support groove for supporting the magnetic adsorbent 1043 is formed on the mounting seat 1041.

[0074] The magnetic attachment 1043 is detachably mounted on the support groove. For example, the mounting seat 1041 is rotatably connected to the stop block 1042. The stop block 1042 has at least one release state and a locked state. When the magnetic attachment 1043 is placed in the support groove, the stop block 1042 can be rotated to the locked state to restrict the magnetic attachment 1043. Alternatively, when needed, the stop block 1042 can be rotated in the other direction to the release state to detach the magnetic attachment 1043 as required.

[0075] Furthermore, the mounting seat 1041 can be provided with an oblong hole 1044, and a connecting member is provided on the dust collection assembly 101. The oblong hole 1044 is connected to the connecting member in a mating manner, and the position / height of the mounting seat 1041 can also be changed by adjusting the relative position of the oblong hole 1044 and the connecting member, thereby also changing the height of the magnetic attachment 1043 - the distance relative to the pole piece.

[0076] So far, the above content has described the dust removal mechanism 100 of the present application example in detail and fully disclosed it. In some application examples, the present application discloses a pole piece dust removal device including two dust removal mechanisms 100.

[0077] In this pole piece dust removal device, the two dust removal mechanisms 100 are respectively located on both sides of the pole piece conveying path and are arranged in a staggered manner to respectively remove dust from both sides of the pole piece conveyed on the pole piece conveying path.

[0078] The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be construed as a limitation of the present application. Moreover, although the above is described by taking the pole piece as an example, in actual use, the object to be dusted can be a pole piece, a separator, or a battery cell housing, etc. Here, the object to be dusted on which the dust removal mechanism involved in the present application acts is not further limited.

[0079] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, one or more embodiments are described above with reference to the accompanying drawings. Among them, similar reference numerals are used throughout the text to refer to similar components. In the above description, for the purpose of explanation, many specific details are set forth in order to provide a more thorough understanding of one or more embodiments. However, it is obvious that in various cases, one or more embodiments can be practiced without these specific details, and the various embodiments can be combined and cross-referenced with each other on the premise of not being contradictory.

[0080] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of this application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here.

[0081] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0082] The structure, features and effects of this application have been described in detail based on the embodiments shown in the drawings. The above are only the preferred embodiments of this application, but the scope of implementation of this application is not limited by what is shown in the drawings. Any changes made according to the concept of this application, or equivalent embodiments modified into equivalent changes, should still be within the protection scope of this application as long as they do not exceed the spirit covered by the description and the drawings.

Claims

1. A dust removal mechanism, characterized in that, It includes two mounting plates, a dust suction assembly and a dust removal assembly that are independent of each other and arranged side by side. Both ends of the dust suction assembly and the dust removal assembly are detachably mounted on the two mounting plates. The dust suction assembly and the dust removal assembly have a lateral spacing measured in the side-by-side direction, and the lateral spacing is adjustable; The dust removal assembly includes a dust removal frame and an anti-static particle generator installed inside the dust removal frame. The anti-static particle generator is used to generate anti-static particle wind acting on the object to be dust-removed; The dust suction assembly includes a dust suction cavity and a dust suction port that are interconnected. The dust suction cavity is used to suck the dust blown up by the dust removal assembly through the dust suction port; The lateral spacing is configured to prevent the anti-static particles generated by the anti-static particle generator from being sucked away by the dust suction port before acting on the object to be dust-removed.

2. The dust removal mechanism according to claim 1, characterized in that, The dust removal frame has a receiving groove. The receiving groove is strip-shaped. The anti-static particle generator is an ion bar, and the ion bar is arranged along the length direction of the receiving groove.

3. The dust removal mechanism according to claim 2, characterized in that, The dust removal assembly further includes a connecting block that is connected to both the anti-static particle generator and the dust removal frame. The anti-static particle generator is suspended in the receiving groove through the connecting block.

4. The dust removal mechanism according to claim 1, characterized in that The mounting plate is connected with an adjusting bolt for adjusting the height of the dust removal mechanism. The first end of the adjusting bolt abuts against the mounting plate, and the height of the mounting plate can be adjusted by rotating the second end of the adjusting bolt.

5. The dust removal mechanism according to claim 2, wherein The dust removal frame is provided with an air inlet, a blowing cavity and a dust blowing port that are interconnected. The air inlet is connected to an external air source. The air flow provided by the external air source is blown out through the air inlet, the blowing cavity and the dust blowing port. The dust blowing port is arranged close to the anti-static particle generator.

6. The dust removal mechanism according to claim 5, wherein The dust blowing port is a strip-shaped opening. There are two dust blowing ports provided on the dust removal frame, and the two dust blowing ports are respectively located on both sides of the anti-static particle generator.

7. The dust removal mechanism according to claim 1, wherein The dust suction port is in the shape of a slender slit, and the extending track of the dust suction port is linear, curved or polyline-shaped; And / or, the dust suction assembly includes two, and the two dust suction assemblies are respectively arranged on both sides of the dust removal frame.

8. The dust removal mechanism according to claim 1, wherein, The dust removal mechanism further includes a metal dust adsorption assembly, and the metal dust adsorption assembly is detachably mounted on the side of the dust suction assembly away from the dust removal assembly.

9. The dust removal mechanism according to claim 8, wherein, The metal dust adsorption assembly includes a magnetic adsorbent and a mounting seat. The mounting seat is mounted on the side of the dust suction assembly away from the dust removal assembly with adjustable height. A support groove for supporting the magnetic adsorbent is formed on the mounting seat, and the magnetic adsorbent is detachably mounted on the support groove.

10. A pole piece dust removal device, characterized in that, The pole piece dust removal device includes two dust removal mechanisms as described in any one of claims 1 to 9. The two dust removal mechanisms are respectively located on both sides of the pole piece conveying path and are arranged in a staggered manner to respectively remove dust from both sides of the pole piece conveyed on the pole piece conveying path.

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