Pole piece cutting device and pole piece production detection line

Abstract

The utility model relates to a pole piece cutting device and a pole piece production detection line, the pole piece cutting device comprises a laser cutting mechanism, a collecting piece and a dust collection mechanism, and the laser cutting mechanism comprises a cutting assembly; an opening of the collecting piece is opposite to the cutting assembly, and a plurality of slag leaking holes are formed in the collecting piece; the dust collection mechanism comprises a dust collection chamber, the collection piece is arranged in the dust collection chamber, and the slag leakage hole communicates with the dust collection chamber. According to the pole piece cutting device, the pole piece is cut through the laser cutting mechanism, the mechanical stress and deformation of a cut material are reduced, the cutting quality is improved, and the calculation accuracy of the coating surface density is improved. The collecting piece can receive the cutting piece falling after being cut, the slag leakage holes in the collecting piece can enable large-mass chippings to fall out of the slag leakage holes under the action of gravity, the slag leakage holes are communicated with the dust collection chamber, dust can be sucked out of the collecting piece under the action of negative pressure, the dust and chipping cleaning time before the cutting piece is weighed is shortened, and the dust and chipping cleaning efficiency is improved. And the detection efficiency of the cutting piece is improved.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a pole piece cutting device and a pole piece production and testing line. Background Art

[0002] With the development of new energy technologies, lithium-ion batteries have been widely used. In the manufacturing process of lithium-ion batteries, it is necessary to coat the electrode with a slurry and then bake the slurry to prepare a special functional film layer on the electrode.

[0003] After the coating process is completed, the first coated electrode needs to be inspected to measure and calculate the coating surface density on the electrode surface to confirm whether the coating process meets production requirements. The existing inspection method is to use a metal stamping instrument to punch out discs from the coated electrode, and then calculate the coating surface density by weighing the discs.

[0004] However, the electrode discs punched out by metal stamping instruments are easily deformed due to mechanical stress, which reduces the accuracy of the coating surface density. Furthermore, the punched electrode discs are difficult to collect after they fall, affecting the efficiency of electrode inspection. Furthermore, after long-term use, metal stamping instruments require frequent replacement of cutting tools or other consumables, resulting in high maintenance costs. Utility Model Content

[0005] The present application provides a pole piece cutting device and a pole piece production and testing line to solve the technical problems in the prior art that pole piece discs are difficult to collect after punching and the maintenance cost of the stamping equipment is high.

[0006] In a first aspect, the present application provides a pole piece cutting device, comprising:

[0007] A laser cutting mechanism, the laser cutting mechanism including a cutting assembly;

[0008] A collecting piece, wherein the opening of the collecting piece is arranged opposite to the cutting assembly and the collecting piece is provided with a plurality of slag leakage holes;

[0009] The dust collection mechanism includes a dust collection chamber, the collecting piece is arranged in the dust collection chamber, and the slag leakage hole is connected to the dust collection chamber.

[0010] Optionally, the cutting assembly includes a reflector and a lens, the reflector and the lens are arranged at an angle, and the lens is arranged opposite to the collecting member.

[0011] Optionally, the laser cutting mechanism further includes a laser emitting component, which is connected to the cutting component.

[0012] Optionally, the laser cutting mechanism further includes a laser cover, one end of which is connected to the cutting assembly, and the other end of which is arranged opposite to the collecting component.

[0013] Optionally, the collecting member is detachably connected to the dust collection chamber.

[0014] Optionally, the dust collection mechanism further includes a negative pressure dust collection component communicated with the dust collection chamber.

[0015] Optionally, the pole piece cutting device further comprises an air supply mechanism, and an air supply pipeline of the air supply mechanism is connected to the cutting assembly.

[0016] Optionally, the electrode cutting device further includes a transmission mechanism, which includes a plurality of conveying rollers. The conveying surface formed by the plurality of conveying rollers is located between the cutting assembly and the collecting member, and the collecting member is located between two adjacent conveying rollers.

[0017] Optionally, the pole piece cutting device further includes a control module, and the laser cutting mechanism and the dust suction mechanism are both connected to the control module signal.

[0018] In a second aspect, the present application provides a pole piece production and testing line, comprising the pole piece cutting device provided in the first aspect of the present application, and also comprising a weighing device arranged corresponding to the pole piece cutting device.

[0019] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0020] The electrode cutting device provided in the embodiment of the present application uses a laser cutting mechanism to replace the traditional metal stamping instrument to cut the electrode. The cutting work can be performed without contacting the material, reducing the mechanical stress and deformation of the cut material, improving the overall cutting quality of the cut piece, and thus improving the calculation accuracy of the coating surface density. The opening of the collecting piece is arranged relative to the cutting assembly, and the collecting piece can receive the cut pieces that fall after being cut. A plurality of slag holes are prepared on the collecting piece, so that large debris can fall out of the collecting piece from the slag holes under the action of gravity. The slag holes of the collecting piece are connected to the dust collection chamber, so that small dust or dust adsorbed on the cutting piece can be sucked out of the collecting piece under the action of negative pressure. The cutting piece can be collected and separated from most of the dust and debris at the same time, which greatly reduces the time for cleaning dust and debris before weighing the cutting piece, which is beneficial to improving the detection efficiency of the cutting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 A schematic diagram of the structure of a pole piece cutting device provided in an embodiment of the present application;

[0025] Figure 2 A front view of a pole piece cutting device provided in an embodiment of the present application;

[0026] Figure 3 A partial cross-sectional view of a laser cutting mechanism provided in an embodiment of the present application;

[0027] Figure 4 A top view of a pole piece cutting device provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the partial structure of a pole piece cutting device provided in an embodiment of the present application;

[0029] Figure 6 Schematic diagram of the laser cutting mechanism and collecting component provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Laser cutting mechanism; 11. Cutting assembly; 111. Reflector; 112. Lens; 12. Laser emitting assembly; 13. Laser cover;

[0032] 2. Collecting piece; 21. Opening; 22. Slag leakage hole;

[0033] 3. Dust collection mechanism; 31. Dust collection chamber; 32. Negative pressure dust collection assembly;

[0034] 4. Gas supply mechanism; 41. Gas supply pipeline; 42. First gas tank; 43. Second gas tank;

[0035] 5. Transmission mechanism; 51. Conveyor roller;

[0036] 6. Pole material strip. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0040] In order to solve the technical problems in the prior art that the electrode discs are difficult to collect after punching and the maintenance cost of the stamping equipment is high, the present application provides a electrode cutting device and a electrode production and detection line, which can realize electrode cutting through a laser cutting mechanism 1 and reduce the equipment maintenance cost. A collecting part 2 and a dust suction mechanism 3 are set in the electrode cutting device, which can collect the fallen cut parts (i.e., electrode discs), and the dust and debris generated during the laser cutting process are collected through the dust suction mechanism 3, which can improve the electrode cutting efficiency and detection efficiency and reduce the equipment maintenance cost.

[0041] See also Figures 1 to 6In a first aspect, an embodiment of the present application provides a pole piece cutting device, comprising a laser cutting mechanism 1, a collecting member 2 and a dust collecting mechanism 3, such as Figure 1 and Figure 2 The laser cutting mechanism 1 includes a cutting assembly 11, which is arranged opposite to the pole piece strip 6 and can be used to perform laser cutting on the pole piece strip 6 to prepare cutting pieces (ie pole piece discs) required for coating surface density calculation.

[0042] The opening 21 of the collector 2 is arranged opposite to the cutting assembly 11 and is located below the electrode strip 6, and can be used to receive the electrode discs that fall after being cut. The shell of the collector 2 has multiple slag holes 22, which allow the dust and debris generated during the laser cutting process to fall out of the collector 2 through the slag holes 22, making it easier to separate the electrode discs from most of the dust and debris, and reducing the time required to clean the dust and debris from the electrode discs before weighing. Figure 1 、 Figure 2 、 Figure 5 and Figure 6 shown.

[0043] The dust collection mechanism 3 includes a dust collection chamber 31, the collecting piece 2 is arranged in the dust collection chamber 31, and the slag leakage hole 22 is connected to the dust collection chamber 31, which can generate negative pressure suction at the slag leakage hole 22 to actively suck out the dust and debris inside the collecting piece 2, leaving only the relatively large electrode discs in the collecting piece 2.

[0044] It should be noted that the present application replaces the traditional metal stamping instrument with a laser cutting mechanism 1. Compared with traditional mechanical processing, the laser can perform cutting work without contacting the material, reducing the mechanical stress and deformation of the cut material (i.e., the electrode material strip 6), improving the overall cutting quality of the electrode disc, and thus improving the calculation accuracy of the coating surface density. In addition, the operation and maintenance costs of the laser cutting mechanism 1 are low, and there is no need to frequently replace tools or other consumables as in traditional mechanical processing. Maintenance is simple, which can save production costs.

[0045] The present application prepares multiple slag holes 22 on the collecting member 2, which allows larger debris to fall out of the collecting member 2 through the slag holes 22 under the action of gravity. The slag holes 22 of the collecting member 2 are connected to the dust collection chamber 31, so that smaller dust or dust adsorbed on the electrode wafers can be sucked out of the collecting member 2 under the action of negative pressure. This can achieve the separation of the electrode wafers from most dust and debris while collecting the electrode wafers, reducing the dust and debris cleaning time before weighing the electrode wafers, which is beneficial to improving the efficiency of the coating surface density detection of the electrode surface.

[0046] In some embodiments of the present application, the collecting member 2 may be a collecting cylinder or a collecting box. In order to allow dust and debris to fall out of the collecting member 2 under the action of gravity, the slag leakage hole 22 is preferably set at the bottom of the collecting member 2, such as Figure 6As shown. And the size of the slag leakage hole 22 should be smaller than the size of the pole piece disc to prevent the pole piece disc from falling out of the slag leakage hole 22. In order to enable the dust suction chamber 31 to suck the dust and debris in the collecting part 2, there is a preset gap between the bottom of the collecting part 2 and the inner wall of the dust suction chamber 31 to facilitate gas circulation, thereby sucking the dust and debris inside the collecting part 2 through the slag leakage hole 22 at the bottom of the collecting part 2. During the suction process, the pole piece disc is firmly fixed to the bottom of the collecting part 2 under the action of negative pressure, and the dust generated by the laser is processed by the dust suction mechanism 3, and post-processing work is carried out, which helps to improve the cutting quality and appearance of the cut piece (i.e., the pole piece disc).

[0047] It should be noted that the electrode cutting device of the present application can not only be used to cut electrode wafers to realize coating surface density calculation, but can also be applied to other occasions where electrode cutting is required, which is not limited here.

[0048] In some embodiments of this application, please refer to Figure 2 and Figure 3 The cutting assembly 11 includes a reflector 111 and a lens 112. The reflector 111 and the lens 112 are arranged at an angle to transmit and reverse the laser light so that the laser light is vertically irradiated on the surface of the electrode strip 6. The lens 112 is arranged opposite to the collecting member 2. When the laser light is vertically emitted from the lens 112, it hits the surface of the electrode strip 6 and cuts the electrode strip 6. The cut electrode discs can fall directly into the collecting member 2, preventing the electrode discs from rolling into the dust collection chamber 31 after falling and being difficult to collect.

[0049] As a specific embodiment of this application, please refer to Figure 2 and Figure 3 The cutting assembly 11 is arranged above the pole piece strip 6, the reflector 111 is arranged tilted, and the lens 112 is arranged horizontally. The angle between the reflector 111 and the lens 112 is 45 degrees. The reflector 111 can reflect the horizontal laser beam to emit vertically downward. Figure 3 As shown by the arrow in , the laser beam is vertically irradiated on the upper surface of the pole piece strip 6, which is conducive to making the edges of the cut pole piece discs smooth.

[0050] In some embodiments of the present application, the laser cutting mechanism 1 further includes a laser emitting assembly 12, through which laser parameters such as power, frequency, and focal length can be adjusted. By adjusting these laser parameters and emitting a corresponding laser beam, which is guided to the pole piece strip 6 via the reflector 111, cutting of different shapes and sizes can be achieved, and the quality of the cutting edge can be controlled, thereby improving the overall cutting quality. The laser emitting assembly 12 is connected to the cutting assembly 11, and can horizontally transmit the laser with preset parameters to the reflector 111 of the cutting assembly 11, and then transmit the laser in a vertical direction to the lens 112 and the surface of the pole piece strip 6 via the reflector 111, as shown in FIG. Figure 3 shown.

[0051] In some embodiments of this application, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The laser cutting mechanism 1 also includes a laser cover 13. One end of the laser cover 13 is connected to the cutting component 11, and the other end of the laser cover 13 is arranged opposite to the collecting component 2. This can prevent the laser emitted by the cutting component 11 from leaking out and affecting the laser cutting quality. At the same time, it can also prevent strong light from damaging the eyesight of operators at the production site.

[0052] In some embodiments of the present application, the collecting member 2 is detachably connected to the dust collection chamber 31 to facilitate taking the collecting member 2 out of the dust collection chamber 31 and then taking the electrode wafer out of the collecting member 2 for measurement.

[0053] In some embodiments of this application, please refer to Figure 4 and Figure 5 The dust collection mechanism 3 also includes a negative pressure dust collection component 32 connected to the dust collection chamber 31. While forming a negative pressure environment in the dust collection chamber 31, it can also collect and process dust debris inside the dust collection chamber 31, which is beneficial to reducing the dust concentration inside the dust collection chamber 31.

[0054] In some embodiments of the present application, the negative pressure dust collection assembly 32 includes a filter, a negative pressure duct, and a negative pressure fan. The negative pressure duct is connected between the dust collection chamber and the negative pressure fan, and the filter is disposed in the negative pressure duct. The filter can filter and intercept dust and debris in the negative pressure duct, preventing dust and debris from entering the negative pressure duct and damaging the negative pressure fan.

[0055] In some embodiments of this application, please refer to Figure 1 、 Figure 2 and Figure 4 The electrode cutting device also includes a gas supply mechanism 4, and the gas supply pipeline 41 of the gas supply mechanism 4 is connected to the cutting component 11, which can be used to supply protective gas or auxiliary gas to the cutting component 11 to improve the quality of laser cutting.

[0056] In some embodiments of the present application, the gas supply mechanism 4 includes multiple gas tanks, each of which can store different types of gases, such as air, nitrogen, oxygen, etc., and can realize the delivery of corresponding gases according to the weight of the cutting material, the purpose of the gas, etc.

[0057] As a specific embodiment of the present application, the gas supply mechanism 4 includes a first gas tank 42 and a second gas tank 43 connected to a gas supply line 41. The first gas tank 42 and the second gas tank 43 store oxygen and nitrogen, respectively. Oxygen is the most commonly used cutting gas, reacting with metal materials to produce oxides, promoting cutting, while also blowing away molten metal to achieve a clean, smooth cut. Nitrogen is primarily used for cutting stainless steel and aluminum. Nitrogen does not react with the metal during the cutting process and primarily serves to clear the cut seam and cool the material, effectively reducing deformation and degradation of the cut material.

[0058] In some embodiments of this application, please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , the electrode cutting device also includes a transmission mechanism 5 for realizing the conveying and support of the electrode strip 6. Specifically, the transmission mechanism 5 includes a plurality of conveying rollers 51, and the movement of the electrode strip 6 is realized by the rotation of the conveying rollers 51. The conveying surface formed by the plurality of conveying rollers 51 is located between the cutting component 11 and the collecting component 2, so that the electrode strip 6 can be located between the cutting component 11 and the collecting component 2, which is convenient for cutting and collecting the electrode wafers. The collecting component 2 is located between the two conveying rollers 51 to avoid interference with the conveying rollers 51, such as Figure 4 and Figure 5 shown.

[0059] In some embodiments of the present application, the transmission mechanism 5 also includes a frame (not shown in the figure) rotatably connected to multiple conveying rollers 51, which can support and fix the conveying rollers 51, thereby improving the stability of the electrode strip 6 during the cutting process.

[0060] In some embodiments of the present application, a laser cutting mechanism 1 and a collecting element 2 are provided on both sides of the length direction of the pole piece strip 6, which are used to cut, sample and measure pole piece discs on both sides of the pole piece strip 6, and confirm whether the coating on the surface of the pole piece strip 6 is uniform through the detection results of the pole pieces on both sides.

[0061] In some embodiments of the present application, the pole piece cutting device also includes a control module, which can monitor the laser cutting process. The laser cutting mechanism 1 and the dust suction mechanism 3 are both connected to the control module signal, and the laser cutting mechanism 1 and the dust suction mechanism 3 can be started and stopped through the control module.

[0062] In some embodiments of the present application, the air supply mechanism 4 and the transmission mechanism 5 are also connected to the control module signal, so that the transmission mechanism 5, the laser cutting mechanism 1, the air supply mechanism 4 and the dust suction mechanism 3 can work together through the control module, thereby realizing automated electrode cutting and improving the preparation efficiency of electrode wafers.

[0063] A second aspect of the present application provides a pole piece production and testing line, comprising the pole piece cutting device of the above embodiment, and also comprising a weighing device provided in correspondence with the pole piece cutting device. After the pole piece wafers are laser cut and collected, the pole piece wafers are removed from the collecting member 2, dust is wiped off the surface of the pole piece wafers, and the pole piece wafers are placed on the weighing mechanism. The surface density of the pole piece coating is calculated by measuring the weight of the pole piece wafers.

[0064] The electrode production and testing line of the present application can sequentially laser cut and weigh the coated electrode sheets. The laser cutting mechanism 1 improves the stability of the electrode cutting device, thereby improving the accuracy of the calculation of the coating surface density. The laser cutting mechanism 1 replaces traditional circular cutting equipment, which can reduce maintenance costs. The preparation efficiency of electrode wafers is fast, which can improve the efficiency of the first-piece commissioning of the coating process and save production energy.

[0065] In some embodiments of this application, please refer to Figures 1 to 6 , the method of using the pole piece cutting device is as follows:

[0066] Step 1: The pole piece strip 6 is transported to a preset position by the transport mechanism 5 and then stopped, so that the pole piece strip 6 is located between the laser cover 13 and the collecting element 2;

[0067] Step 2: Start the laser cutting mechanism 1, the air supply mechanism 4 and the dust collection mechanism 3; the laser emitting component 12 emits a laser beam, which is guided by the reflector 111 to the lens 112 after mirror reflection and then applied to the processing surface of the pole piece strip 6. With the assistance of the cutting gas nitrogen and oxygen, the energy generated by the laser beam will generate heat on the processing surface, which is applied to the pole piece strip 6 after coating and baking, so that the material is locally heated and evaporated or melted to achieve the cutting target. The laser emitting component 12 adjusts the position of the light beam during the cutting process, and after reflection from the reflector 111 and transmission from the lens 112, a pole piece disc of the required size is punched out on the coated pole piece;

[0068] Step 3: The electrode disc falls into the collecting member 2, and the dust collecting mechanism 3 sucks out the dust and debris in the collecting member 2, leaving only the electrode disc at the bottom of the collecting member 2;

[0069] Step 4: Take the electrode disc out of the collecting piece 2, place it on a weighing device, and calculate the electrode coating surface density based on the weight of the electrode disc.

[0070] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0071] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0072] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A pole piece cutting device, characterized in that: include: A laser cutting mechanism (1), the laser cutting mechanism (1) comprising a cutting assembly (11); A collecting member (2), wherein the opening (21) of the collecting member (2) is arranged opposite to the cutting assembly (11), and the collecting member (2) has a plurality of slag leakage holes (22); A dust suction mechanism (3), the dust suction mechanism (3) comprises a dust suction chamber (31), the collecting member (2) is arranged in the dust suction chamber (31), and the slag leakage hole (22) is communicated with the dust suction chamber (31).

2. The electrode cutting device according to claim 1, characterized in that: The cutting assembly (11) comprises a reflector (111) and a lens (112), wherein the reflector (111) and the lens (112) are arranged at an angle, and the lens (112) is arranged opposite to the collecting component (2).

3. The electrode cutting device according to claim 2, characterized in that: The laser cutting mechanism (1) further comprises a laser emitting component (12), and the laser emitting component (12) is connected to the cutting component (11).

4. The electrode cutting device according to claim 1, characterized in that: The laser cutting mechanism (1) further comprises a laser cover (13), one end of the laser cover (13) is connected to the cutting assembly (11), and the other end of the laser cover (13) is arranged opposite to the collecting component (2).

5. The electrode cutting device according to claim 1, characterized in that: The collecting member (2) and the dust collection chamber (31) are detachably connected.

6. The electrode cutting device according to claim 1, characterized in that: The dust collection mechanism (3) further comprises a negative pressure dust collection assembly (32) in communication with the dust collection chamber (31).

7. The pole piece cutting device according to any one of claims 1 to 6, characterized in that: It also includes an air supply mechanism (4), wherein the air supply pipeline (41) of the air supply mechanism (4) is connected to the cutting assembly (11).

8. The pole piece cutting device according to any one of claims 1 to 6, characterized in that: The invention also includes a transmission mechanism (5), wherein the transmission mechanism (5) includes a plurality of conveying rollers (51), and a conveying surface formed by the plurality of conveying rollers (51) is located between the cutting assembly (11) and the collecting member (2), and the collecting member (2) is located between two adjacent conveying rollers (51).

9. The pole piece cutting device according to any one of claims 1 to 6, characterized in that: It also includes a control module, and the laser cutting mechanism (1) and the dust collection mechanism (3) are both connected to the control module by signal.

10. A pole piece production and testing line, comprising the pole piece cutting device according to any one of claims 1 to 9, characterized in that: It also includes a weighing device corresponding to the pole piece cutting device.

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