Pole piece thickness measuring device and pole piece production system

Abstract

The utility model relates to a pole piece thickness measuring device and a pole piece production system.The pole piece thickness measuring device comprises a base and a laser thickness measuring assembly, the base is provided with a first supporting assembly and a second supporting assembly which are movably arranged, and the first supporting assembly and the second supporting assembly are connected through a horizontal measuring instrument; the horizontal measuring instrument is hinged to the first supporting assembly and the second supporting assembly. The laser thickness measuring assembly is arranged on the base, and the first supporting assembly and the second supporting assembly are located on the two sides of the laser thickness measuring assembly respectively. According to the pole piece thickness measuring device provided by the invention, the pole piece or the pole piece material belt is supported through the first supporting assembly and the second supporting assembly which are movably arranged, and whether the pole piece or the pole piece material belt is in a horizontal state is determined through the horizontal measuring instrument connected between the first supporting assembly and the second supporting assembly; and accurate thickness data can be obtained through the laser thickness measuring assembly, so that the precision and the accuracy of the thickness measurement of the pole piece can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery manufacturing technology, and in particular to a pole piece thickness measuring device and a pole piece production system. Background Art

[0002] Batteries, as indispensable energy storage devices in modern society, are widely used in electric vehicles, portable electronic devices, energy storage systems, and other fields. The thickness of the positive and negative electrodes, core components of a battery, has a significant impact on its performance, cycle life, and safety.

[0003] The traditional method of measuring electrode thickness is usually to roll the electrode on a roller press, remove the electrode sample from the production line for manual offline measurement, and then return the sample to the production line. This offline measurement method not only increases production costs but also reduces production efficiency.

[0004] However, when using an automated measuring device to measure the thickness of the electrode in the prior art, the electrode placement is often incorrect, resulting in large measurement errors during the automated measurement of the electrode thickness, making it difficult to improve the precision and accuracy of the electrode thickness measurement. Utility Model Content

[0005] The present application provides a pole piece thickness measuring device and a pole piece production system to solve the technical problem in the prior art that due to incorrect pole piece placement, the measurement error during automatic measurement of pole piece thickness is large, making it difficult to improve the precision and accuracy of pole piece thickness measurement.

[0006] In a first aspect, the present application provides a device for measuring the thickness of a pole piece, comprising:

[0007] A base having a first support assembly and a second support assembly that are movably arranged, wherein the first support assembly and the second support assembly are connected via a level measuring instrument, and the level measuring instrument is hinged to the first support assembly and the second support assembly respectively;

[0008] The laser thickness measuring assembly is arranged on the base, and the first supporting assembly and the second supporting assembly are respectively located on both sides of the laser thickness measuring assembly.

[0009] Optionally, the first support assembly and the second support assembly both include a support roller, a transmission member and a driving member, the transmission member is connected to the support roller and the driving member respectively, and the driving member drives the transmission member and the support roller to move in the vertical direction.

[0010] Optionally, the transmission member includes a rack portion extending in a vertical direction, and the driving member includes a gear portion meshing with the rack portion.

[0011] Optionally, the base has a cavity for accommodating the rack portion and the gear portion, and the driving member further includes a coaxially arranged shaft and a knob, and an end of the shaft away from the knob extends into the cavity and is connected to the gear portion.

[0012] Optionally, the laser thickness measurement assembly includes a mounting bracket, a first laser sensor and a second laser sensor, the mounting bracket is connected to the base, and the first laser sensor and the second laser sensor are arranged on the mounting bracket opposite to each other in a vertical direction.

[0013] In the second aspect, the present application provides a pole piece production system, including the pole piece thickness measuring device provided in the first aspect of the present application, and also including an unwinding mechanism, a rolling mechanism and a winding mechanism. The pole piece material strip of the unwinding mechanism passes through the rolling mechanism and the pole piece thickness measuring device in sequence and then connects to the winding mechanism.

[0014] Optionally, the pole piece production system further includes a guiding mechanism and a tensioning mechanism, and the pole piece strip is wound around the guiding mechanism and the tensioning mechanism.

[0015] Optionally, the tensioning mechanism includes a tension floating roller, which is pressed against the pole piece strip and always has a tendency to tighten the pole piece strip.

[0016] Optionally, the pole piece production system further includes a control module, and the laser thickness measuring component and the rolling mechanism are both connected to the control module by signal.

[0017] Optionally, the electrode production system further includes a display module, which is signal-connected to the control module.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The base of the electrode thickness measuring device provided in the embodiment of the present application has a movable first support assembly and a second support assembly, the first support assembly and the second support assembly are connected by a level measuring instrument, and the level measuring instrument is hinged to the first support assembly and the second support assembly respectively, so that the level measuring instrument can swing relative to the first support assembly and the second support assembly, and the position of the electrode support surface formed at the top of the first support assembly and the top of the second support assembly can be adjusted by adjusting the position of the first support assembly and the second support assembly. When the bubble in the level measuring instrument is centered, it means that the first support assembly and the second support assembly are at the same support height, and the electrode support surface formed at the top of the first support assembly and the top of the second support assembly is a horizontal plane, thereby adjusting the electrode or electrode material strip placed on the top of the first support assembly and the top of the second support assembly to a horizontal state, so as to facilitate the accurate placement of the position of the electrode or electrode material strip. Then, the thickness of the electrode or electrode material strip is measured by a laser thickness measuring assembly, and the electrode or electrode material strip is supported by the first support assembly and the second support assembly to ensure the stability of the electrode or electrode material strip during the measurement process, thereby improving the precision and accuracy of the electrode thickness measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Figure 1 A schematic diagram of the structure of the electrode production system provided in an embodiment of the present application;

[0024] Figure 2 A partial front view of a pole piece thickness measuring device provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the partial structure of a pole piece thickness measuring device provided in an embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of a laser thickness measurement assembly provided in an embodiment of the present application;

[0027] Figure 5 This is a measurement principle diagram of the electrode thickness measurement device provided in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Base; 11. First support assembly; 111. First support roller; 112. First transmission member; 113. First drive member; 12. Second support assembly; 121. Second support roller; 122. Second transmission member; 123. Second drive member; 13. Level gauge; 14. Front side panel; 15. Rear side panel;

[0030] 2. Laser thickness measurement assembly; 21. Mounting bracket; 211. Connecting portion; 212. Upper mounting plate; 213. Lower mounting plate; 214. Stand; 22. First laser sensor; 23. Second laser sensor; 24. Signal processor;

[0031] 3. Unwinding mechanism;

[0032] 4. Rolling mechanism;

[0033] 5. Winding mechanism;

[0034] 6. Guiding mechanism;

[0035] 7. Tensioning mechanism;

[0036] 8. Display module;

[0037] 9. Pole material strip. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] In order to solve the technical problem in the prior art that the measurement error during the automatic measurement of the electrode thickness is large due to the incorrect placement of the electrode, and it is difficult to improve the precision and accuracy of the electrode thickness measurement, the present application provides a electrode thickness measuring device and an electrode production system, which can support the electrode or electrode strip 9 to be inspected through a first support component 11 and a second support component 12 movably arranged on a base 1, and confirm whether the electrode or electrode strip 9 is in a horizontal state through a level measuring instrument 13 connected between the first support component 11 and the second support component 12, so as to correct the position of the electrode or electrode strip 9, and obtain accurate thickness data through a laser thickness measuring component 2, thereby improving the precision and accuracy of the electrode thickness measurement.

[0042] See also Figures 1 to 5 In a first aspect, an embodiment of the present application provides a device for measuring the thickness of a pole piece, comprising a base 1 and a laser thickness measuring assembly 2, such as Figure 2 The base 1 has a first supporting assembly 11 and a second supporting assembly 12 that are movably arranged. By adjusting the positions of the first supporting assembly 11 and the second supporting assembly 12, the positions of the electrode support surfaces formed on the tops of the first supporting assembly 11 and the second supporting assembly 12 can be adjusted, so that the positions of the electrode or electrode strip 9 supported on the tops of the first supporting assembly 11 and the second supporting assembly 12 can be accurately placed.

[0043] The first support assembly 11 and the second support assembly 12 are connected by a level measuring instrument 13, and the level measuring instrument 13 is hinged to the first support assembly 11 and the second support assembly 12, respectively, so that the level measuring instrument 13 can swing relative to the first support assembly 11 and the second support assembly 12. When the bubble in the level measuring instrument 13 is centered, it means that the first support assembly 11 and the second support assembly 12 are at the same support height, and the pole piece support surface formed by the top of the first support assembly 11 and the top of the second support assembly 12 is a horizontal surface, thereby adjusting the pole piece or pole piece strip 9 placed on the top of the first support assembly 11 and the top of the second support assembly 12 to a horizontal state, so as to cooperate with the laser thickness measuring assembly 2 to achieve accurate thickness measurement.

[0044] The laser thickness measuring component 2 is arranged on the base 1, and the first supporting component 11 and the second supporting component 12 are respectively located on both sides of the laser thickness measuring component 2. The first supporting component 11, the laser thickness measuring component 2 and the second supporting component 12 are arranged in sequence along the length direction of the pole piece or pole piece strip 9. The thickness of the pole piece or pole piece strip 9 is measured by the laser thickness measuring component 2, and the pole piece or pole piece strip 9 is supported by the first supporting component 11 and the second supporting component 12 to ensure the stability of the pole piece or pole piece strip 9 during the measurement process, thereby improving the precision and accuracy of the pole piece thickness measurement.

[0045] It should be noted that the electrode thickness measuring device of the present application can measure the thickness of electrode sheets cut into single pieces, and can also measure the thickness of electrode sheet strips 9 that are continuously conveyed, and this is not limited here.

[0046] In some embodiments of this application, please refer to Figure 2 The first support assembly 11 and the second support assembly 12 each include a support roller, a transmission member, and a drive member. The support roller is used to roll in contact with the bottom surface of the pole piece or pole piece strip 9 to support the bottom of the pole piece or pole piece strip 9. The transmission member is connected to the support roller and the drive member respectively. The drive member drives the transmission member and the support roller to move in the vertical direction, thereby achieving height adjustment of the first support assembly 11 and the second support assembly 12, so that the first support roller 111 in the first support assembly 11 and the second support roller 121 in the second support assembly 12 are at the same horizontal height.

[0047] In some embodiments of the present application, the first support assembly 11 includes a first support roller 111, a first transmission member 112 and a first driving member 113; the second support assembly 12 includes a second support roller 121, a second transmission member 122 and a second driving member 123; the first support assembly 11 and the second support assembly 12 are symmetrically arranged on both sides of the laser thickness measuring assembly 2, for achieving uniform and symmetrical support for the pole piece or pole piece strip 9 in the measuring area of the laser thickness measuring assembly 2.

[0048] In some embodiments of the present application, the transmission member includes a rack portion (not shown in the figure) extending in the vertical direction, and the driving member includes a gear portion (not shown in the figure) meshing with the rack portion. The gear portion can drive the rack portion to rise or fall by rotating forward or reverse, thereby realizing height adjustment of the transmission member and the support roller.

[0049] In some embodiments of this application, please refer to Figure 2 and Figure 3 The base 1 has a cavity for accommodating the rack and gear components, protecting the meshing between them and preventing external factors from affecting the normal transmission between the driver and transmission components. The driver also includes a coaxially arranged shaft and knob. The end of the shaft, distal from the knob, extends into the cavity and connects to the gear component. The knob is located on the outside of the base 1, allowing the operator to rotate the knob to rotate the shaft and gear component, thereby manually adjusting the height of the transmission component and support roller.

[0050] In some embodiments of this application, please refer to Figure 2 and Figure 3 The base 1 includes a front side plate 14 and a rear side plate 15 disposed opposite each other, with a cavity formed between the front side plate 14 and the rear side plate 15. A knob and a shaft are rotatably disposed on the front side plate 14 so that an operator, facing the level gauge 13 in front of the base 1, can manually adjust the knob based on the position of the bubble in the level gauge 13 to ensure that the first support roller 111 in the first support assembly 11 and the second support roller 121 in the second support assembly 12 are at the same level.

[0051] In some embodiments of this application, please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The laser thickness measurement assembly 2 includes a mounting bracket 21, a first laser sensor 22, and a second laser sensor 23. The mounting bracket 21 is connected to the base 1 to achieve the overall fixed setting of the laser thickness measurement assembly 2. The first laser sensor 22 and the second laser sensor 23 are arranged on the mounting bracket 21 relative to each other in the vertical direction. When the pole piece or pole piece strip 9 is located between the first laser sensor 22 and the second laser sensor 23, the first laser sensor 22 and the second laser sensor 23 can respectively emit lasers to the upper and lower surfaces of the pole piece or pole piece strip 9, thereby achieving the measurement of the pole piece thickness data.

[0052] For details, please refer to Figure 5The first laser sensor 22 is disposed in the upper mounting plate 212 of the mounting bracket 21 and can emit laser light toward the upper surface of the pole piece or pole piece strip 9 to measure the distance A between the upper surface of the pole piece or pole piece strip 9 and the first laser sensor 22. The second sensor is disposed in the lower mounting plate 213 of the mounting bracket 21 and can emit laser light toward the lower surface of the pole piece or pole piece strip 9 to measure the distance B between the upper surface of the pole piece or pole piece strip 9 and the second laser sensor 23. When the distance between the first laser sensor 22 and the second laser sensor 23 is C, the thickness D of the pole piece or pole piece strip 9 equals CAB.

[0053] In some embodiments of the present application, the mounting bracket 21 is a C-shaped or horizontal U-shaped structure. In order to avoid interference with the measurement of the laser thickness measuring assembly 2 when the level measuring instrument 13 is connected between the first support assembly 11 and the second support assembly 12, the level measuring instrument 13 is preferably set at the open end of the mounting bracket 21, and the measurement range of the first laser sensor 22 and the second laser sensor 23 only covers the width range of the pole piece or the pole piece strip 9, and the level measuring instrument 13 is not within the measurement range of the first laser sensor 22 and the second laser sensor 23.

[0054] In some embodiments of the present application, the mounting bracket 21 also includes a stand 214 and a connecting portion 211. The stand 214 is connected between the upper mounting plate 212 and the lower mounting plate 213 to connect the mounting bracket 21 into a C-shaped or horizontal U-shaped structure. The connecting portion 211 is arranged on both sides of the lower mounting plate 213 to form a detachable connection with the base 1.

[0055] In the prior art, it is necessary to cut samples from the rolled electrode strip 9 and then transfer the electrode samples to a thickness measurement station for measurement. This measurement method not only increases the electrode production cost, but also reduces production efficiency.

[0056] To solve the above problem, please refer to Figures 1 to 5 The second aspect of the embodiment of the present application provides a pole piece production system, including the pole piece thickness measuring device in the above embodiment, and also including a reeling mechanism 3, a rolling mechanism 4 and a reeling mechanism 5. The pole piece strip 9 of the reeling mechanism 3 passes through the rolling mechanism 4 and the pole piece thickness measuring device in sequence and then enters the reeling mechanism 5. Figure 1 As shown, the thickness of the rolled pole piece strip 9 can be measured directly during the production process of the pole piece strip 9. During the measurement process, there is no need to perform sample cutting and sample transfer processes, and there is no need to perform offline measurement, which can reduce the production cost of the pole piece and improve the production efficiency of the pole piece.

[0057] In some embodiments of this application, please refer to Figure 1The electrode production system also includes a guide mechanism 6 and a tensioning mechanism 7. The electrode strip 9 is wound around the guide mechanism 6 and the tensioning mechanism 7. The guide mechanism 6 includes multiple guide rollers that can be used to adjust the conveying direction of the electrode strip 9, allowing the electrode strip 9 to be smoothly transported between the various mechanisms under the action of the multiple guide rollers. The tensioning mechanism 7 is used to tension the electrode strip 9 to prevent the electrode strip 9 from sagging and adversely affecting the thickness measurement of the electrode strip 9.

[0058] In some embodiments of this application, please refer to Figure 1 The tensioning mechanism 7 includes a tension floating roller, which is pressed against the pole piece strip 9 and always has a tendency to tighten the pole piece strip 9, so that the pole piece strip 9 is in a tensioned state at all locations, so as to facilitate the transmission and thickness measurement of the pole piece strip 9.

[0059] As a specific embodiment of this application, please refer to Figure 1 The tensioning mechanism 7's tensioning roller is positioned between two guide rollers. It abuts the upper surface of the electrode strip 9 and is located at the front end of the electrode thickness measuring device. An elastic member is incorporated into the tensioning roller, ensuring it consistently moves downward, keeping it in contact with the upper surface of the electrode strip 9 and tightening it. This ensures the electrode strip 9, entering the laser thickness measuring assembly 2, remains horizontally stretched, facilitating accurate thickness measurement.

[0060] In the existing technology, when measuring the thickness of the cut electrode samples, it is impossible to monitor the changes in the electrode thickness through offline thickness measurement, and it is impossible to adjust the rolling parameters in time according to the changes in the electrode thickness. This will result in the rolling parameters in the production process not being adjusted in time, making it difficult to ensure the stability of product quality.

[0061] In order to solve the above problems, in some embodiments of the present application, the electrode production system further includes a control module, and the laser thickness measuring component 2 and the rolling mechanism 4 are both connected to the control module signal. The laser thickness measuring component 2 can measure the thickness of the electrode material strip 9 continuously conveyed to the electrode thickness measuring device, and transmit the thickness information to the control module through the signal processor 24 in the laser thickness measuring component 2. The control module adjusts the rolling parameters of the rolling mechanism 4 according to the electrode thickness change information. By monitoring the electrode thickness in real time through the laser thickness measuring component 2, thickness anomalies can be discovered in a timely manner, avoiding production accidents and product defects caused by thickness changes, and improving product quality and production line stability.

[0062] In some embodiments of the present application, the electrode production system also includes a storage module connected to the control module signal, which can record the thickness information of any length segment of the electrode strip 9, so that in the subsequent process of taking the electrode strip 9, the length segments with abnormal thickness in the electrode material roll can be removed to ensure the production quality of the battery product.

[0063] In some embodiments of this application, please refer to Figure 1 The electrode production system also includes a display module 8, which is connected to the control module by signal. The display module 8 can display production information during the electrode production process, so that operators can check the thickness of the electrode strip 9 at any time through the display module 8 and adjust production parameters in a timely manner, further reducing the scrap rate and improving production efficiency. This real-time monitoring and adjustment mechanism enables the electrode production system to respond more flexibly to changes in the production process, improving the adaptability and resilience of the production line.

[0064] In some embodiments of the present application, the display module 8 includes an operation interface that can intuitively display the thickness data of the electrode strip 9 and provide real-time monitoring functions, providing timely feedback on measurement results. In addition, the operation interface can also provide an alarm function so that the operator can adjust production parameters in a timely manner based on the alarm information to ensure product quality and stability.

[0065] In some embodiments of the present application, in order to facilitate the control of the production process, the operation interface of the display module 8 also has functional options for providing data analysis and report generation, which can help production managers optimize the production process and make decisions.

[0066] The electrode production system provided in the above embodiment of the present application can realize real-time measurement and monitoring of the thickness of the electrode strip 9, can adjust the production parameters in a timely manner, improves production efficiency and product quality, and has broad application prospects and market potential.

[0067] See also Figures 1 to 5 In some embodiments of the present application, the working process of the above-mentioned electrode production system is as follows:

[0068] Step 1: Adjust the pole piece thickness measuring device so that the support heights of the first support assembly 11 and the second support assembly 12 are the same, and the bubble in the level measuring instrument 13 is centered; and the laser beams emitted by the first laser sensor 22 and the second laser sensor 23 are parallel to the vertical direction;

[0069] Step 2: The electrode strip 9 is output from the unwinding mechanism 3 and enters the rolling mechanism 4 through the guiding action of the guide mechanism 6;

[0070] Step 3: The rolling mechanism 4 rolls the electrode strip 9 to further reduce the thickness of the electrode strip 9 to meet the electrode thickness requirement;

[0071] Step 4: The rolled pole piece strip 9 passes through the guide mechanism 6 and the tensioning mechanism 7 and enters the pole piece thickness measuring device;

[0072] Step 5: The pole piece strip 9 in the measurement area is horizontally supported by the first support assembly 11 and the second support assembly 12, and the thickness data of the pole piece strip 9 is monitored in real time by the laser thickness measuring assembly 2; the pole piece thickness data is processed by the control module, and the rolling parameters are adjusted in time; during the measurement process, the thickness information of the pole piece strip 9 and the current production parameters are displayed by the display module 8;

[0073] Step 6: After the measurement, the electrode strip 9 enters the winding mechanism 5.

[0074] 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.

[0075] 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.

[0076] 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 device for measuring the thickness of a pole piece, characterized in that: include: A base (1), the base (1) having a first supporting assembly (11) and a second supporting assembly (12) which are movably arranged, the first supporting assembly (11) and the second supporting assembly (12) being connected via a level measuring instrument (13), and the level measuring instrument (13) being hinged to the first supporting assembly (11) and the second supporting assembly (12), respectively; A laser thickness measuring assembly (2) is provided on the base (1), and the first supporting assembly (11) and the second supporting assembly (12) are respectively located on two sides of the laser thickness measuring assembly (2).

2. The electrode thickness measuring device according to claim 1, characterized in that: The first support assembly (11) and the second support assembly (12) both include a support roller, a transmission member and a driving member, wherein the transmission member is connected to the support roller and the driving member respectively, and the driving member drives the transmission member and the support roller to move in a vertical direction.

3. The electrode thickness measuring device according to claim 2, characterized in that: The transmission member includes a rack portion extending in a vertical direction, and the driving member includes a gear portion meshing with the rack portion.

4. The electrode thickness measuring device according to claim 3, characterized in that: The base (1) has a cavity for accommodating the rack portion and the gear portion, and the driving member further comprises a coaxially arranged rotating shaft and a knob, wherein one end of the rotating shaft away from the knob extends into the cavity and is connected to the gear portion.

5. The pole piece thickness measuring device according to any one of claims 1 to 4, characterized in that: The laser thickness measurement assembly (2) comprises a mounting bracket (21), a first laser sensor (22), and a second laser sensor (23); the mounting bracket (21) is connected to the base (1); the first laser sensor (22) and the second laser sensor (23) are arranged on the mounting bracket (21) in a vertical direction relative to each other.

6. A pole piece production system, characterized in that: It comprises the electrode thickness measuring device as described in any one of claims 1 to 5, and also comprises a reeling mechanism (3), a rolling mechanism (4) and a reeling mechanism (5), wherein the electrode material strip (9) of the reeling mechanism (3) passes through the rolling mechanism (4) and the electrode thickness measuring device in sequence and then is connected to the reeling mechanism (5).

7. The electrode production system according to claim 6, characterized in that: It also includes a guiding mechanism (6) and a tensioning mechanism (7), and the pole piece strip (9) is wound around the guiding mechanism (6) and the tensioning mechanism (7).

8. The electrode production system according to claim 7, characterized in that: The tensioning mechanism (7) comprises a tension floating roller, which is pressed against the pole piece material strip (9) and always has a tendency to tighten the pole piece material strip (9).

9. The electrode production system according to any one of claims 6 to 8, characterized in that: It also includes a control module, and the laser thickness measuring component (2) and the rolling mechanism (4) are both connected to the control module by signal.

10. The electrode production system according to claim 9, characterized in that: It also includes a display module (8), which is connected to the control module by signal.

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