Battery coating on-line sampling device, testing device and battery coating system

Abstract

The present application relates to the technical field of battery coating, in particular to a battery coating online sampling device, a testing device and a battery coating system. The battery coating online sampling device comprises a sampling mechanism, a first driving mechanism and a second driving mechanism. The sampling mechanism is used for sampling from the pole piece; the first driving mechanism is connected with the sampling mechanism and is used for driving the sampling mechanism to move from the inner side of the pole piece to the outer side of the pole piece in the vertical direction of the pole piece conveying direction; the second driving mechanism is connected with the first driving mechanism and is used for driving the first driving mechanism to move at the same speed as the pole piece along the pole piece conveying direction. The problem that unqualified products flow out exists in the prior art when the fixed interval sampling method is used for monitoring during the detection test of the pole piece.

Description

Technical Field

[0001] This invention relates to the field of battery coating technology, specifically to an online sampling device, a testing device, and a battery coating system for battery coating. Background Technology

[0002] Battery coating refers to the application of active material slurry to the electrode. If the amount of active material slurry applied to the electrode or the performance of the electrode after coating does not meet the set requirements, it will affect the energy density and cycle life of the battery. Therefore, it is necessary to test the coated electrode.

[0003] Currently, the industry uses a fixed-interval sampling method to monitor electrode testing, which poses a risk of non-conforming products being released. Furthermore, the monitoring results cannot be obtained in a timely and rapid manner when adjusting equipment parameters and slurry batches, which also leads to inconvenience in adjusting equipment parameters. Summary of the Invention

[0004] In view of the deficiencies in the existing technology, the purpose of this invention is to provide an online sampling device, a testing device, and a battery coating system, which can solve the problem that the existing technology uses a fixed interval sampling method for electrode inspection, which poses a risk of unqualified products being released.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] On one hand, this application provides an online sampling device for battery coating, characterized in that it includes:

[0007] A sampling mechanism used to take samples from the electrode;

[0008] A first driving mechanism, which is connected to the sampling mechanism, is used to drive the sampling mechanism to move from the inside of the electrode to the outside of the electrode in the direction perpendicular to the electrode conveying direction;

[0009] The second drive mechanism is connected to the first drive mechanism and is used to drive the first drive mechanism to move at the same speed as the electrode along the electrode conveying direction.

[0010] In some alternative embodiments, the first drive mechanism includes:

[0011] A transverse slide rail is provided perpendicular to the electrode conveying direction and extends partially to the outside of the electrode for mounting the sampling mechanism.

[0012] A first drive assembly is disposed on the transverse slide rail and is used to connect with a sampling mechanism mounted on the transverse slide rail, for driving the sampling mechanism to move on the transverse slide rail.

[0013] In some alternative solutions, the first driving component includes:

[0014] A first threaded sleeve is connected to the sampling mechanism;

[0015] The first drive motor is mounted on the transverse slide rail and is connected to the first threaded sleeve via a first threaded screw.

[0016] In some alternative embodiments, the second drive mechanism includes:

[0017] A longitudinal slide rail, which is set on one side of the electrode and along the electrode conveying direction, is used to mount the first drive mechanism;

[0018] The second drive assembly is disposed on the longitudinal slide rail and connected to the first drive mechanism, and is used to drive the first drive mechanism to move on the longitudinal slide rail.

[0019] In some alternative solutions, the second driving component includes:

[0020] The second threaded sleeve is connected to the first drive mechanism;

[0021] The second drive motor is mounted on the longitudinal slide rail and is connected to the second threaded sleeve via a second threaded screw.

[0022] In some alternative solutions, the sampling mechanism includes:

[0023] The base is connected to the first drive mechanism;

[0024] A sampling cylinder, one end of which is connected to the base;

[0025] A sampling blade is located at the other end of the sampling cylinder.

[0026] On the other hand, this application also provides an online battery coating testing device, characterized in that it includes:

[0027] The battery coating online sampling device described in any of the above claims;

[0028] A weighing device, located on the outside of the electrode, is used to weigh the sample taken by the sampling mechanism.

[0029] In some alternative solutions, the online battery coating testing device also includes:

[0030] A waste recycling box is located on one side of the weighing device;

[0031] An air supply device, located on the other side of the weighing device, is used to blow the sample on the weighing device into the waste recycling box.

[0032] In some alternative solutions, the battery coating online testing device also includes a housing positioned above the weighing device. The housing includes a vertical baffle on one side near the air supply device and the waste recycling box, and a cover plate on top of the vertical baffle. The vertical baffle is connected to a vertical telescopic rod, which moves the vertical baffle up and down by vertical extension and contraction. The cover plate is connected to a horizontal telescopic rod, which moves the cover plate horizontally by horizontal extension and contraction.

[0033] On the other hand, this application also provides a battery coating system, including the battery coating online sampling device described in any of the above claims, or the battery coating online testing device described above.

[0034] Compared with the prior art, the advantages of the present invention are as follows: the first driving mechanism is driven by the second driving mechanism to move at the same speed as the electrode along the electrode conveying direction, so that the sampling mechanism moves at the same speed as the electrode. Then, the sampling mechanism takes a sample from the electrode. Then, the first driving mechanism drives the sampling mechanism to move from the inside of the electrode to the outside of the electrode in the direction perpendicular to the electrode conveying direction. The sample is then placed down for testing, thus completing the online sampling and testing. This achieves online sampling and testing without stopping the machine, and allows for sampling and testing of the electrode at any time, reducing the possibility of defective coated electrodes flowing out. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the online sampling device for battery coating in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the online sampling device for battery coating in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of the online sampling device for battery coating in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the coating system in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the first state of the box in an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the second state of the box in an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of another coating system in an embodiment of the present invention.

[0043] In the diagram: 1. Sampling mechanism; 11. Base; 12. Sampling cylinder; 13. Sampling tool; 2. First drive mechanism; 21. Transverse slide rail; 211. Transverse slide table; 212. Transverse track; 22. First drive assembly; 221. First threaded sleeve; 222. First threaded screw; 223. First drive motor; 3. Electrode; 4. Second drive mechanism; 41. Longitudinal slide rail; 411. Longitudinal slide table; 412. Longitudinal track 42. Second drive assembly; 421. Second threaded sleeve; 422. Second threaded screw; 423. Second drive motor; 5. Weighing device; 6. Waste recycling box; 7. Air supply device; 81. Die head; 82. Back roller; 83. Oven mechanism; 84. Surface density detector; 85. Through roller; 9. Box body; 91. Vertical baffle; 92. Cover plate; 93. Vertical telescopic rod; 94. Horizontal telescopic rod; 95. Vertical fixing plate. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0046] like Figures 1 to 4 As shown, this application provides an online sampling device for battery coating, including: a sampling mechanism 1, a first driving mechanism 2, and a second driving mechanism 4.

[0047] Sampling mechanism 1 is used to sample from electrode 3; first driving mechanism 2 is connected to sampling mechanism 1 and is used to drive sampling mechanism 1 to move from the inside to the outside of electrode 3 in the direction perpendicular to the conveying direction of electrode 3; second driving mechanism 4 is connected to first driving mechanism 2 and is used to drive first driving mechanism 2 to move at the same speed as electrode 3 along the conveying direction of electrode 3. Here, "inside electrode 3" means that the projections of driving sampling mechanism 1 and electrode 3 in the thickness direction of electrode 3 at least partially overlap, and "outside electrode 3" means that the projections of driving sampling mechanism 1 and electrode 3 in the thickness direction of electrode 3 do not overlap.

[0048] When using this online sampling device, the coating machine coats and bakes the electrode 3 and transports the electrode 3 at a set speed. The online sampling device drives the first drive mechanism 2 to move at the same speed as the electrode 3 along the transport direction of the electrode 3 via the second drive mechanism 4. The sampling mechanism 1 takes a sample from the electrode 3, and then the first drive mechanism 2 drives the sampling mechanism 1 to move from the inside to the outside of the electrode 3 in a direction perpendicular to the transport direction of the electrode 3. Finally, the sample is placed down, thus completing the online sampling. Specifically, the sample can be placed on the weighing device 5 on the outside of the electrode 3 for weighing, realizing online sampling and weighing detection of the battery coating.

[0049] This solution uses a second driving mechanism 4 to drive a first driving mechanism 2 to move at the same speed as the electrode 3 along the electrode 3's conveying direction. Once the sampling mechanism 1 moves at the same speed as the electrode 3, it takes a sample from the electrode 3. Then, the first driving mechanism 2 drives the sampling mechanism 1 to move from the inside to the outside of the electrode 3 in a direction perpendicular to the electrode 3's conveying direction. The sample is then placed down for testing, thus completing the online sampling and testing. This achieves online sampling and testing without stopping the system, allowing for sampling and testing of the electrode 3 at any time, reducing the possibility of defective coated electrode 3 flowing out.

[0050] like Figure 1 and Figure 2 As shown, preferably, the first driving mechanism 2 includes a transverse slide rail 21 and a first driving assembly 22. The transverse slide rail 21 is arranged perpendicular to the conveying direction of the electrode 3 and partially extends to the outside of the electrode 3 for mounting the sampling mechanism 1. The first driving assembly 22 is disposed on the transverse slide rail 21 and is used to connect with the sampling mechanism 1 mounted on the transverse slide rail 21, driving the sampling mechanism 1 to move back and forth on the transverse slide rail 21.

[0051] In this embodiment, by setting a transverse slide rail 21 in the vertical direction of the electrode sheet 3 conveying direction, the sampling mechanism 1 can be moved to the inside of the electrode sheet 3, so that the sampling mechanism 1 can take a sample from the electrode sheet 3. After sampling, the sampling mechanism 1 is driven to move on the transverse slide rail 21 by the first driving component 22. After the sampling mechanism 1 is moved to the outside of the electrode sheet 3, the sample taken out is put down for testing, thus completing the online sampling and testing, realizing online sampling and testing without stopping the machine.

[0052] In this example, the transverse slide rail 21 includes a transverse slide table 211 arranged in the horizontal direction. Two transverse rails 212 are spaced apart on the transverse slide table 211. Two sliders corresponding to the transverse rails 212 are provided below the sampling mechanism 1. The sliders move on the transverse rails 212.

[0053] Preferably, the first drive assembly 22 includes a first threaded sleeve 221 and a first drive motor 223; the first threaded sleeve 221 is connected to the sampling mechanism 1; the first drive motor 223 is mounted on the transverse slide rail 21 and is connected to the first threaded sleeve 221 via a first threaded screw 222.

[0054] In this example, a first threaded sleeve 221 is provided on the sampling mechanism 1, and a first drive motor 223 is provided at the end of the transverse slide rail 21. The output shaft of the first drive motor 223 is connected to the first threaded sleeve 221 through a first threaded screw 222. When the first drive motor 223 rotates in both directions, it can drive the sampling mechanism 1 to move back and forth on the transverse slide rail 21. The first drive motor 223 is a servo motor.

[0055] like Figure 1 and Figure 3 As shown, in some optional embodiments, the second drive mechanism 4 includes: a longitudinal slide rail 41 and a second drive assembly 42. The longitudinal slide rail 41 is disposed on one side of the electrode 3 and along the conveying direction of the electrode 3, and is used to mount the first drive mechanism 2. The second drive assembly 42 is connected to the longitudinal slide rail 41 and to the first drive mechanism 2, and is used to drive the first drive mechanism 2 to move on the longitudinal slide rail 41.

[0056] The longitudinal slide rail 41 is set on one side of the electrode 3 and along the conveying direction of the electrode 3. The transverse slide rail 21 of the first drive mechanism 2 is set on the longitudinal slide rail 41. The transverse slide rail 21 is driven to move at the same speed as the electrode 3 on the longitudinal slide rail 41 by the second drive component 42. This enables the sampling mechanism 1 to move at the same speed relative to the electrode 3, so that the sampling mechanism 1 can perform sampling when the electrode 3 moves.

[0057] In this example, the longitudinal slide rail 41 includes a longitudinal slide table 411 extending longitudinally. Two longitudinal rails 412 are arranged laterally on the longitudinal slide table 411. Two sliders corresponding to the longitudinal rails 412 are arranged below the transverse slide table 211, and the sliders move on the longitudinal rails 412.

[0058] Preferably, the second drive assembly 42 includes a second threaded sleeve 421 and a second drive motor 423. The second threaded sleeve 421 is connected to the first drive mechanism 2; the second drive motor 423 is mounted on the longitudinal slide rail 41 and is connected to the second threaded sleeve 421 via a second threaded screw 422.

[0059] In this embodiment, a second threaded sleeve 421 is provided on the transverse slide rail 21 of the first drive mechanism 2, and a second drive motor 423 is provided at the end of the longitudinal slide rail 41. The output shaft of the second drive motor 423 is connected to the second threaded sleeve 421 via a second threaded screw 422. When the second drive motor 423 rotates in both directions, it can drive the first drive mechanism 2 to move back and forth on the longitudinal slide rail 41, thereby driving the sampling mechanism 1 to move at the same speed relative to the electrode 3. The second drive motor 423 is a servo motor.

[0060] See you again Figure 1 In some optional embodiments, the sampling mechanism 1 includes a base 11, a sampling cylinder 12, and a sampling blade 13. The base 11 is connected to the first driving mechanism 2; one end of the sampling cylinder 12 is connected to the base 11; and the sampling blade 13 is located at the other end of the sampling cylinder 12.

[0061] In this embodiment, the base 11 is mounted on the transverse slide rail 21, with both ends of the base 11 extending out of the transverse slide rail 21. Sampling cylinders 12 are mounted on the portions of the base 11 extending out of the transverse slide rail 21. Multiple sampling cylinders 12 and corresponding sampling blades 13 can be spaced apart at both ends of the base 11. In this example, three sampling cylinders 12 are spaced apart at both ends of the base 11, and each sampling cylinder 12 is equipped with a sampling blade 13. During each sampling, all six sampling cylinders can be pressed down simultaneously, and the sampling blades 13 can be used to extract six electrode blocks as samples. The sampling mechanism 1 is driven to the outside of the electrode 3 by the first driving mechanism 2, and then the six samples are placed down sequentially for testing.

[0062] In this example, the weighing device 5, which is used for weighing, is fixed in position. The positions of the sampling cylinder 12 and the sampling blade 13 can be adjusted by the cooperation of the first driving mechanism 2 and the second driving mechanism 4, so that all 6 samples can fall onto the weighing device 5 in sequence.

[0063] In some alternative embodiments, the sampling tool 13 includes a substrate and a tool, one side of the substrate is connected to the other end of the sampling cylinder 12, and the substrate is provided with a negative pressure chamber for adsorbing the electrode block; the tool is located on the other side of the substrate.

[0064] In this embodiment, a negative pressure cavity for adsorbing electrode blocks is provided in the substrate. After the sample is taken from the electrode 3 by the sampling knife 13, the sample is adsorbed. After the sample is moved to the set position, the pressure is released, and the sample can fall naturally onto the weighing device 5 for weighing. This realizes the automation of sampling and detection without any human intervention, thus improving detection efficiency.

[0065] On the other hand, this application also provides an online battery coating testing device, including: any one of the above-mentioned online battery coating sampling devices and a weighing device 5. The sampling mechanism 1 is used to take samples from the electrode 3; a first driving mechanism 2 is connected to the sampling mechanism 1 and is used to drive the sampling mechanism 1 to move in the direction perpendicular to the conveying direction of the electrode 3 to the outside of the electrode 3; a second driving mechanism 4 is connected to the first driving mechanism 2 and is used to drive the first driving mechanism 2 to move at the same speed as the electrode 3 along the conveying direction of the electrode 3; the weighing device 5 is located on the outside of the electrode 3 and is used to weigh the sample taken by the sampling mechanism 1.

[0066] This solution uses a second drive mechanism 4 to drive a first drive mechanism 2 to move at the same speed as the electrode 3 along the conveying direction. Once the sampling mechanism 1 moves at the same speed as the electrode 3, it takes a sample from the electrode 3. Then, the first drive mechanism 2 drives the sampling mechanism 1 to move perpendicular to the conveying direction of the electrode 3 to the outside of the electrode 3. The sample is then placed on a weighing device 5 for weighing, thus completing the online sampling and testing. This achieves online sampling and testing without stopping the system, allowing for weighing and testing of the electrode 3 at any time, reducing the possibility of defective coated electrode 3 being discharged.

[0067] In this example, the second drive mechanism 4 and the weighing device 5 are located on both sides of the electrode plate 3, which facilitates the arrangement of the second drive mechanism 4 and the weighing device 5.

[0068] Preferably, the battery coating online testing device further includes: a waste recycling box 6 and an air supply device 7. The waste recycling box 6 is located on one side of the weighing device 5; the air supply device 7 is located on the other side of the weighing device 5 and is used to blow the sample from the weighing device 5 into the waste recycling box 6.

[0069] Specifically, the waste recycling box 6 and the air supply device 7 are respectively set on both sides of the weighing device 5 in the conveying direction of the electrode 3. Three sampling cylinders 12 are spaced apart at both ends of the base 11. Each sampling cylinder 12 is equipped with a sampling knife 13. Each time a sample is taken, all six sampling cylinders 12 can be pressed down at the same time, and six samples are taken out by the sampling knife 13. The sampling mechanism 1 is driven to the outside of the electrode 3 by the first driving mechanism 2. Through the cooperation of the first driving mechanism 2 and the second driving mechanism 4, the positions of the sampling cylinders 12 and the sampling knife 13 are adjusted so that the six samples can fall onto the weighing device 5 in sequence. The six samples are tested separately. After the test is completed, the air supply device 7 is turned on to blow the samples on the weighing device 5 into the waste recycling box 6.

[0070] In this example, the air supply device 7 is located below the transverse slide rail 21. The position of the air supply device 7 can be adjusted by the cooperation of the second drive mechanism 4 so that the air supply device 7 is positioned to better blow the sample on the weighing device 5 into the waste recycling box 6. For example, by adjusting the distance between the air supply device 7 and the weighing device 5, the air force of the air supply device 7 blowing the sample into the waste recycling box 6 can be adjusted. Of course, it can also be adjusted by setting the rotation speed of the air supply device 7.

[0071] In this example, the weighing device 5 is a precision electronic scale, and the air supply device 7 is a fan.

[0072] like Figure 5 , Figure 6 and Figure 7 As shown, preferably, a box 9 is provided above the weighing device 5. The box 9 can be used to bake the samples on the weighing device 5. The box 9 includes a vertical baffle 91 on the side near the air supply device 7 and the side near the waste recycling box 6, and a cover plate 92 located on the top of the vertical baffle 91. The vertical baffle 91 is connected to a vertical telescopic rod 93. The vertical telescopic rod 93 drives the vertical baffle 91 to rise and fall by vertical extension and contraction. The cover plate 92 is connected to a horizontal telescopic rod 94. The horizontal telescopic rod 94 drives the cover plate 92 to move horizontally by horizontal extension and contraction.

[0073] When not weighing, the vertical baffle 91 and cover 92 are in their original positions, with cover 92 above the weighing device 5 and vertical baffle 91 in the lowered position, forming a box 9 covering the weighing device 5. When the sampling cylinder 12 and sampling blade 13 are positioned on the weighing device 5 and the sample is ready to be placed on the weighing device 5, the horizontal telescopic rod 94 drives the cover 92 to move horizontally, opening the cover 92. The box 9 is in its first state, allowing the sample to fall onto the weighing device 5 for weighing. After weighing, when the sample needs to be blown into the waste recycling box 6, the vertical telescopic rod 93 drives the vertical baffle 91 to rise vertically, changing the vertical baffle 91 from the lowered position to the rising position, thus opening the vertical baffle 91. The box 9 is in its second state, at which point the box 9 forms a channel between the air supply device 7 and the waste recycling box 6. By opening the air supply device 7, the sample on the weighing device 5 can be blown into the waste recycling box 6.

[0074] The waste recycling box 6 has a notch on the side near the weighing device 5. The lower end of the notch is roughly flush with the weighing surface of the weighing device 5, and the upper end of the waste recycling box 6 is roughly flush with the cover plate 92. This design allows the sample to be blown into the waste recycling box 6 more effectively.

[0075] In addition, the other two sides of the chamber 9 are vertical fixing plates 95, on which heating devices or through holes for heating gas are provided. The chamber 9 is used to bake and reduce the humidity of the sample placed on the weighing device 5. After the cover 92 is opened and the sample is placed on the weighing device 5 for the first weighing, the cover 92 is closed, and the heating function of the chamber 9 is used to bake the sample for a certain period of time. After the baking time, a second weighing is performed. After the second weighing, the sample is blown into the waste collection box 6. The weight loss rate is obtained through the two weighings, and the weight loss rate data and the weighing data are uploaded to the system. When the weight loss rate exceeds the warning value, the system will sound an alarm.

[0076] like Figure 4 and Figure 7 As shown, this application also provides a battery coating system including any of the above-mentioned battery coating online sampling devices or battery coating online testing devices.

[0077] When using the online sampling device for battery coating, other weighing devices can be used to weigh the samples, as long as they can achieve the goal of weighing the samples. The weighing device 5 described in the above embodiment can be used in conjunction with the waste recycling box 6 and the air supply device 7 to achieve full automation of online testing.

[0078] In this example, the battery coating system also includes a die head 81, a back roller 82, an oven mechanism 83, a surface density detector 84, and two guide rollers 85 arranged in sequence. After the electrode 3 passes around the back roller 82, it passes through the oven mechanism 83, the surface density detector 84, and the two guide rollers 85. The die head 81 is located on the outside of the back roller 82 and is used to apply slurry to the electrode 3. The battery coating online sampling device is located between the two guide rollers 85.

[0079] After the slurry is extruded through the die 81, it is applied to the electrode 3. The electrode 3 is then transported to the drying oven 83 by the back roller 82 for baking. After baking, the electrode 3 is transported to the areal density detector 84 to measure its areal density. After passing through the first roller 85, it reaches the sampling device. After sampling, the sample is sent to the weighing device 5 for the first weighing to obtain B1. After a set baking interval, the weighing device 5 performs a second weighing to obtain B2. The weight loss rate is calculated as (B1-B2) / B1. The weight loss rate data and weighing data are uploaded to the system. When the weight loss rate exceeds the warning value, the system sounds an alarm. After the second weighing, the sample is blown into the waste recycling box 6 by the air supply device 7. The sample is discarded at the end of each production shift. The baking process after the first weighing can be achieved either through the chamber 9 or by transferring the sample to another baking device. The obtained weight loss rate can be used to measure the amount of residual solvent in the electrode, to determine the degree of dryness of the electrode, and to compensate system data, such as correcting the data measured by the density meter 84 based on the weight loss rate obtained from the two weighings.

[0080] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery coating online sampling device, characterized in that, include: A sampling mechanism (1) is used to take samples from the electrode (3); The first driving mechanism (2) is connected to the sampling mechanism (1) and is used to drive the sampling mechanism (1) to move from the inside of the electrode (3) to the outside of the electrode (3) in the direction perpendicular to the conveying direction of the electrode (3); The second drive mechanism (4) is connected to the first drive mechanism (2) and is used to drive the first drive mechanism (2) to move at the same speed as the electrode (3) along the electrode (3) conveying direction.

2. The online sampling device for battery coating as described in claim 1, characterized in that, The first drive mechanism (2) includes: A transverse slide rail (21) is provided in the direction perpendicular to the conveying direction of the electrode (3) and extends partially to the outside of the electrode (3) for mounting the sampling mechanism (1). A first drive assembly (22) is disposed on the transverse slide rail (21) and is used to connect with a sampling mechanism (1) mounted on the transverse slide rail (21) to drive the sampling mechanism (1) to move on the transverse slide rail (21).

3. The online sampling device for battery coating as described in claim 2, characterized in that, The first driving component (22) includes: The first threaded sleeve (221) is connected to the sampling mechanism (1); The first drive motor (223) is mounted on the transverse slide rail (21) and is connected to the first threaded sleeve (221) via the first threaded screw (222).

4. The online sampling device for battery coating as described in claim 1, characterized in that, The second drive mechanism (4) includes: A longitudinal slide rail (41) is provided on one side of the electrode (3) and along the conveying direction of the electrode (3) for mounting the first drive mechanism (2). The second drive assembly (42) is disposed on the longitudinal slide rail (41) and connected to the first drive mechanism (2) for driving the first drive mechanism (2) to move on the longitudinal slide rail (41).

5. The online sampling device for battery coating as described in claim 4, characterized in that, The second driving component (42) includes: The second threaded sleeve (421) is connected to the first drive mechanism (2); The second drive motor (423) is mounted on the longitudinal slide rail (41) and is connected to the second threaded sleeve (421) via the second threaded screw (422).

6. The online sampling device for battery coating as described in any one of claims 1-5, characterized in that, The sampling mechanism (1) includes: The base (11) is connected to the first drive mechanism (2); A sampling cylinder (12) is connected at one end to the base (11); A sampling tool (13) is located at the other end of the sampling cylinder (12).

7. A battery coating online testing device, characterized in that, include: The battery coating online sampling device as described in any one of claims 1-6; A weighing device (5) is located outside the electrode (3) and is used to weigh the sample taken by the sampling mechanism (1).

8. The online battery coating testing device as described in claim 7, characterized in that, Also includes: Waste recycling box (6) is located on one side of the weighing device (5); An air supply device (7) is located on the other side of the weighing device (5) and is used to blow the sample on the weighing device (5) into the waste recycling box (6).

9. The online battery coating testing device as described in claim 8, characterized in that, It also includes a housing (9), which is located above the weighing device (5). The housing (9) includes a vertical baffle (91) on the side near the air supply device (7) and the side near the waste recycling box (6) and a cover plate (92) on the top of the vertical baffle (91). The vertical baffle (91) is connected to a vertical telescopic rod (93). The vertical telescopic rod (93) drives the vertical baffle (91) to rise and fall by vertical extension and contraction. The cover plate (92) is connected to a horizontal telescopic rod (94). The horizontal telescopic rod (94) drives the cover plate (92) to move horizontally by horizontal extension and contraction.

10. A battery coating system, characterized in that, It includes the online sampling device for battery coating as described in any one of claims 1-6, or the online testing device for battery coating as described in any one of claims 7-9.

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