Pole piece conveying system and pole piece processing equipment

Abstract

The invention relates to a pole piece conveying system and pole piece processing equipment. The pole piece conveying system comprises a material belt supply unit, a surface treatment unit, a tension adjusting unit, a position correcting unit, a dynamic caching unit and a conveying driving unit which are arranged along a set conveying path. The material belt supply unit is used for releasing a pole piece material belt; the surface treatment unit is used for processing the surface of the pole piece material belt; the tension adjusting unit is used for adjusting the tension of the pole piece material belt in the transmission path; and at least two functional execution components of at least one of the material belt supply unit, the surface treatment unit, the tension adjusting unit, the position correction unit, the dynamic cache unit and the transmission driving unit are arranged in an integrated manner. According to the scheme, the structure of the pole piece conveying system can be simplified, the conveying path is shortened, and meanwhile the assembling and debugging difficulty can be lowered.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment technology, and in particular to electrode transfer systems and electrode processing equipment. Background Technology

[0002] The electrode cutting and stacking integrated machine is a core piece of equipment in lithium-ion battery production. Through a highly integrated automated system, it integrates multiple processes such as cutting, testing, handling, and stacking, and is a key piece of equipment for achieving efficient and high-quality lithium battery manufacturing.

[0003] In related technologies, the conveyor system of an integrated electrode cutting and stacking machine typically consists of a large number of functional execution components of different types, which are distributed along the transmission path, resulting in a complex system structure. Due to the large number of functional execution components and the lengthy layout, the assembly and on-site debugging of the system are significantly more difficult, and the total length of the transmission path is also relatively large, leading to waste of material strip substrate and a decrease in production efficiency. Summary of the Invention

[0004] To solve or partially solve the problems existing in the related technologies, this application provides an electrode transfer system and electrode processing equipment, which can simplify the structure of the electrode transfer system, shorten the transfer path, and reduce the difficulty of assembly and debugging.

[0005] The first aspect of this application provides a polarimeter transmission system. At least including those arranged along the defined transmission path: The feed strip unit is used to release the electrode feed strip; A surface treatment unit is used to process the surface of the electrode strip; Tension adjustment unit, used to adjust the tension of the electrode strip; A position correction unit is used to correct the position of the electrode strip during transmission; A dynamic caching unit is used to dynamically cache the electrode strip in the transmission path; A transmission drive unit is used to drive the electrode strip to move along the transmission path; The material supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit are integrated with at least two functional execution components.

[0006] In one embodiment, the surface treatment unit is located downstream of the strip feeding unit, and the functional execution component of the surface treatment unit includes at least one surface processing roller, which processes the surface of the electrode strip. The surface processing roller adjacent to the material supply unit is also used to guide the electrode material released by the material supply unit to the next station.

[0007] In one embodiment, the functional execution components of the tension adjustment unit include a movable first tension buffer roller and a tension detection roller. The first tension buffer roller is disposed between the surface treatment unit and the position correction unit for buffering unwinding tension fluctuations. It also includes a cleaning device integrated into the tension detection roller for cleaning the electrode strip that passes through the tension detection roller.

[0008] In one embodiment, the functional execution component of the surface treatment unit includes a first surface processing roller and a second surface processing roller arranged sequentially along the electrode strip conveying direction. The first surface processing roller and the second surface processing roller are respectively used to contact the two side surfaces of the electrode strip to process the two side surfaces of the electrode strip respectively. The functional execution components of the position correction unit include a correction feed roller and a correction discharge roller arranged in parallel. The functional execution components of the tension adjustment unit are disposed between the surface treatment unit and the position correction unit, and are used to adjust the tension of the electrode strip between the surface treatment unit and the position correction unit.

[0009] In one embodiment, the functional execution component of the material strip supply unit includes a first guide roller, which is used to apply force to the released electrode material strip and change the transmission direction to guide it to the surface treatment unit.

[0010] In one embodiment, the functional execution component of the dynamic buffer unit includes a reciprocating dynamic buffer roller, which is driven by a drive component to move the electrode strip reciprocally in the buffer direction. Downstream of the position correction unit, a second guide roller is provided, which is used to guide the electrode strip output by the position correction unit to the dynamic buffer unit.

[0011] In one embodiment, the functional execution component of the transmission drive unit includes a drive roller, and the dynamic buffer roller is disposed between the second guide roller and the drive roller on the transmission path; The tension adjustment unit includes a second tension buffer roller and a tension detection roller disposed downstream of the drive roller, with the second tension buffer roller disposed between the drive roller and the tension detection roller.

[0012] In one embodiment, the strip supply unit includes an unwinding roller, and the drive roller is configured to have different operating states and to form a speed difference with the unwinding roller in the different operating states; It also includes a buffer control module. When the rotational speed of the drive roller is less than the rotational speed of the unwinding roller, the buffer control module controls the dynamic buffer roller to move along a first direction to buffer the electrode strip provided by the strip supply unit. When the rotational speed of the drive roller is greater than the rotational speed of the unwinding roller, the buffer control module controls the dynamic buffer roller to move along a second direction to release the buffered electrode strip.

[0013] In one embodiment, the total number of functional execution components in the strip supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit is configured to be less than or equal to 13.

[0014] A second aspect of this application provides an electrode processing apparatus, including the electrode transport system described in the first aspect above.

[0015] The technical solution provided in this application may include the following beneficial effects: The solution provided in this application allows the tape supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit to operate collaboratively, and wherein... The structure integrates at least two functional execution components, which not only achieves efficient processing and stable transmission of electrode strips with a smaller number of functional execution components, but also simplifies the layout of the electrode transmission system, shortens the transmission path, reduces the failure rate, and improves production stability through integration.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram of the electrode transmission path of an electrode transmission system according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an electrode transmission system shown in one embodiment of this application.

[0019] Figure label: 100. Electrode conveying system; 101. Electrode conveying path; 110. Material belt supply unit; 111. First guide roller; 112. Guide roller; 120. Surface treatment unit; 121. First surface processing roller; 122. Second surface processing roller; 130. Tension adjustment unit; 131. First tension buffer roller; 132. Second tension buffer roller; 133. Tension detection roller; 140. Position correction unit; 141. Correcting feed roller; 142. Correcting discharge roller; 150. Second guide roller; 160. Dynamic buffer unit; 161. Guide rail; 162. Dynamic buffer roller; 170. Cleaning device; 180. Drive roller. Detailed Implementation

[0020] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In related technologies, the conveyor system of an integrated electrode cutting and stacking machine typically consists of a large number of functional execution components of different types, and these components are distributed along the transmission path, resulting in a complex system structure. Due to the large number of functional execution components and their lengthy layout, the assembly and on-site debugging of the system are significantly more difficult, and the total length of the transmission path is also large, leading to waste of the material strip and a decrease in production efficiency. To address these problems, this application provides an electrode conveying system and electrode processing equipment that simplifies the structure of the electrode conveying system, shortens the transmission path, and reduces assembly and debugging difficulty.

[0026] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the electrode transmission path of an electrode transmission system according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an electrode transmission system shown in one embodiment of this application.

[0028] See Figure 1 and Figure 2 This application provides an electrode transport system 100, which includes at least a tape supply unit 110, a surface treatment unit 120, a tension adjustment unit 130, a position correction unit 140, a dynamic buffer unit 160, and a transport drive unit arranged along a set transport path 101. The tape supply unit 110 releases the electrode tape; the surface treatment unit 120 processes the surface of the electrode tape; the tension adjustment unit 130 adjusts the tension of the electrode tape in the transport path 101; the position correction unit 140 corrects the position of the electrode tape during transport, for example, by correcting the position of the electrode tape during transport; the dynamic buffer unit 160 dynamically buffers the electrode tape in the transport path 101; and the transport drive unit drives the electrode tape to move along the transport path 101.

[0029] The material supply unit 110, surface treatment unit 120, tension adjustment unit 130, position correction unit 140, dynamic buffer unit 160 and transmission drive unit are integrated with at least two functional execution components. This can also be understood as at least one of the above-mentioned multiple units having at least two or more functional execution components integrated.

[0030] The solution provided in this application allows the tape supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit to operate collaboratively. The structure integrates at least two functional execution components, which not only achieves efficient processing and stable transmission of electrode strips with a smaller number of functional execution components, but also simplifies the layout of the electrode transmission system, shortens the transmission path, reduces the failure rate, and improves production stability through integration.

[0031] In this application, the strip supply unit 110 can be a device for releasing the electrode strip from the roll structure and introducing it into the transport path 101. The surface treatment unit 120 can be understood as a device for performing specific texture processing on the surface of the electrode strip, for example, using a surface processing roller with cross-patterned roller surface to act on both sides of the electrode strip, thereby forming a texture on the surface of the electrode strip. The tension adjustment unit 130 can be understood as a device for maintaining the tension stability of the electrode strip during transport, specifically by using a swing roller combined with a tension sensor to absorb and detect tension fluctuations.

[0032] The position correction unit can achieve automatic correction by combining the correction roller with the position detector. The dynamic buffer unit 160 can realize the reciprocating movement of the electrode strip by the dynamic buffer roller 162. For example, the linear guide rail 161 is used in conjunction with the servo motor to drive the dynamic buffer roller 162 to move along the predetermined buffer path to realize the dynamic buffering of the electrode strip in the transmission path 101. The transmission drive unit can realize the stable traction of the electrode strip by friction transmission to ensure the smooth movement of the electrode strip in the transmission path 101.

[0033] The functional execution components can be rollers that perform specific functions in the electrode transfer system 100, such as rollers that perform functions like guiding, supporting, tension adjustment, or surface treatment. The number of functional execution components is reduced by integrating or reusing at least two types of functional execution components in each unit. For example, the steering function and embossing function can be integrated into the same roller, or a cleaning device 170 can be integrated into the tension detection roller 133, thereby reducing the number of independent functional execution components. The number of functional execution components in related technologies is generally 15 or more. The solution in this application can reduce the number of functional execution components by 20% to 40% compared to related technologies, thereby optimizing the system's integration, simplicity, and compact layout.

[0034] In some embodiments, the surface treatment unit 120 is located downstream of the strip supply unit 110. The functional execution components of the surface treatment unit 120 include at least one surface processing roller, which processes the surface of the electrode strip. The surface processing roller adjacent to the strip supply unit 110 is also used to redirect the electrode strip released from the strip supply unit 110 and introduce it into the next work station.

[0035] Specifically, the surface processing roller can apply a specific texture or shape to the surface of the electrode strip through mechanical action. The specific texture or shape is also called an embossed structure, and the desired embossed pattern can be formed on the surface processing roller through engraving, etching or other surface treatment processes. In this embodiment, one surface processing roller adjacent to the strip supply unit 110 also serves as a steering function. This arrangement simplifies the system structure and reduces the number of independent guide rollers.

[0036] By arranging the surface treatment unit 120 downstream of the strip supply unit 110 along the electrode conveying direction, it is ensured that the electrode strip can directly enter the surface treatment stage after release, avoiding redundant design of intermediate transition paths. The surface processing roller in the surface treatment unit 120 not only completes the surface treatment of the electrode strip, but also realizes the strip turning function through its specific installation position and angle. This design meets the requirements of the embossing process while naturally guiding the strip to turn and enter the next station, thereby significantly reducing the total number of functional execution components, and improving the system's operational stability and the material utilization rate of the electrode strip.

[0037] See also Figure 1 and Figure 2In some embodiments, the functional execution components of the tension adjustment unit 130 include a first tension buffer roller 131 and a tension detection roller 133. The first tension buffer roller 131 is disposed between the surface treatment unit 120 and the position correction unit 140 to buffer unwinding tension fluctuations. In this embodiment, the first tension buffer roller 131 can swing along the swing center, thereby dynamically adjusting or buffering the tension of the electrode strip during the transmission process through its own swing. Distributing the first tension buffer roller 131 between the surface treatment unit 120 and the position correction unit 140 utilizes the sensitivity of this position to tension fluctuations to promptly intercept and buffer tension changes generated by upstream processes, thereby maintaining the tension stability of the entire transmission path 101.

[0038] In this embodiment of the present application, the tension detection roller 133 can acquire the tension data of the electrode strip in real time through contact or non-contact detection methods. The first tension buffer roller 131 and the tension detection roller 133 form a closed-loop tension control. The tension detection roller 133 feeds back the real-time detected tension data to the control system, and the first tension buffer roller 131 performs adaptive oscillation adjustment based on the feedback information. This arrangement fully utilizes the spatial characteristics behind the surface treatment unit 120 and in front of the position correction unit 140, so that the tension mutation caused by the surface treatment process can be effectively buffered before affecting downstream processes. At the same time, this arrangement is compatible with the overall layout of the system, ensuring the timeliness of tension control while avoiding the need to increase the number of functional execution components (such as rollers), effectively improving the compactness of the system structure.

[0039] In some embodiments, the functional execution component also includes a cleaning device 170, which can be integrated into the roller surface of the tension detection roller 133 to clean the electrode strip passing through the tension detection roller 133. Specifically, the cleaning device 170 is a functional execution component capable of removing dust and impurities from the surface of the electrode strip. It can employ structures such as an electrostatic dust removal device, a brush-type dust removal mechanism, or a dust-adhesive roller. By integrating the dust removal function into the tension detection roller 133, not only are the two functions organically integrated, but the total number of functional execution components can also be reduced.

[0040] This embodiment integrates the cleaning device 170 directly onto the surface of the tension detection roller 133, enabling simultaneous cleaning while detecting the tension of the electrode strip. This design avoids the need for a separate dust removal roller, effectively reducing the total number of functional components and simplifying the system layout. During electrode strip transport, as the strip passes the tension detection roller 133, the cleaning device 170 utilizes the natural contact position between the strip and the roller surface to promptly remove dust and impurities from the strip surface, preventing contaminant accumulation from affecting subsequent processes. In some embodiments, the cleaning device can also be independently located outside the tension detection roller; for example, it can be independently located adjacent to the tension detection roller, specifically downstream of the dynamic buffer roller 162.

[0041] In some embodiments, the functional execution components of the surface treatment unit 120 include a first surface processing roller 121 and a second surface processing roller 122 arranged sequentially along the electrode strip conveying direction. The first surface processing roller 121 and the second surface processing roller 122 are respectively used to contact the two side surfaces of the electrode strip to process the two side surfaces of the electrode strip. The structure and function of the first surface processing roller 121 and the second surface processing roller 122 in this embodiment are the same as those of the surface processing rollers in the above embodiments, and will not be repeated here. In this embodiment, the first surface processing roller 121 and the second surface processing roller 122 are respectively arranged on both sides of the electrode strip.

[0042] In this embodiment, the first surface processing roller 121 and the second surface processing roller 122 are arranged sequentially along the conveying direction, enabling simultaneous contact processing of both sides of the electrode strip, thus avoiding uneven tension distribution during the double-sided embossing process. The first tension buffer roller 131 is positioned between the second surface processing roller 122 and the correction feed roller 141, enabling it to respond instantly to dynamic tension changes generated during processing. Through the physical correlation between the swing direction and tension adjustment, real-time and precise control of the tension of the strip passing through the surface treatment unit 120 and the position correction unit 140 is achieved.

[0043] The functional execution components of the position correction unit 140 include a side-by-side correction feed roller 141 and a correction output roller 142. The correction feed roller 141 and correction output roller 142 can be a set of parallel rollers in the position correction unit 140 used to guide the electrode strip through a smooth transition, and they can be mounted on the frame via bearing seats. A first tension buffer roller 131 is disposed between the second surface treatment roller 122 and the correction feed roller 141. When the first tension buffer roller 131 swings in a first direction, it is used to reduce the tension of the electrode strip passing through the surface treatment unit 120 and the position correction unit 140. When it swings in a second direction, it is used to increase the tension of the electrode strip passing through the surface treatment unit 120 and the position correction unit 140, wherein the first direction and the second direction are opposite.

[0044] In this application, the basic structures such as the material supply unit 110 and the tension adjustment unit 130 form an organic whole. By arranging the tension swing roller close to the end of the embossing station, the residual tension fluctuations after embossing can be suppressed in a timely manner, thereby effectively solving the problem of uneven tension distribution during the embossing process and significantly improving the anti-interference capability and operational continuity of the belt system.

[0045] In some embodiments, the solution of this application may further include a correction sensor and a correction drive. The correction drive is used to drive the correction feed roller 141 and / or correction discharge roller 142 to move, thereby compensating for the offset of the electrode strip through reverse displacement. The correction drive can specifically be a cylinder or a linear motor. The correction sensor refers to a detection device used to capture the lateral offset of the electrode strip, specifically a linear scan camera or a laser displacement sensor, which acquires the edge position data of the electrode strip in real time through non-contact measurement.

[0046] In some embodiments, the functional execution components of the strip supply unit 110 include a first guide roller 111. The first guide roller 111 is used to apply a tension force in a predetermined direction to the electrode strip released by the strip supply unit 110 and to guide the electrode strip to the surface treatment unit 120 after turning it. The strip supply unit 110 includes an unwinding roller for releasing the strip, and the first guide roller 111 is disposed on one side of the unwinding roller. In some embodiments, the first guide roller 111 controls the tension force of the electrode strip released by the unwinding roller through a built-in tension control module or an external tension adjustment device, and also serves to achieve path turning, thereby reducing the number of functional execution components required by the system.

[0047] In addition, the steering function of the first guide roller 111 ensures that the electrode strip is accurately introduced into the surface treatment unit 120, reducing the structural complexity, long belt path and risk of electrode friction damage caused by the strip passing through multiple rollers, reducing the probability of electrode tab folding and belt path deviation, making the system structure more compact, the transmission path 101 significantly shortened, and the overall operational stability improved.

[0048] In related technologies, a combined structure of multiple tension rollers and drive rollers is used, with each set of tension rollers and drive rollers controlled independently. This results in complex signal transmission layers and significant delays, making it difficult to achieve coordinated tension control. This fragmented control not only causes frequent tension fluctuations but also makes the correction operation overly reliant on downstream compensation, leading to the accumulation of correction errors and affecting the accuracy of the conveyor belt. Under high-speed operating conditions, unstable tension can easily lead to an increase in the local tensile deformation rate of the strip, increasing the risk of belt breakage and limiting further improvements in the overall line speed and accuracy.

[0049] To address the aforementioned issues, this application optimizes the belt layout, effectively shortening the belt transmission path 101 and reducing system complexity. By integrating tension control and correction actions, signal delay and coordination errors are reduced, thereby effectively suppressing tension spikes and cumulative correction errors, improving operational stability under high-speed conditions, and thus reducing the possibility of belt breakage.

[0050] See Figure 1 and Figure 2 In some embodiments, the functional execution components of the dynamic buffer unit 160 include a dynamic buffer roller 162, which is driven by a drive member to move the electrode strip back and forth in the buffer direction X. A second guide roller 150 is also provided downstream of the position correction unit 140, which guides the electrode strip output from the position correction unit 140 to the dynamic buffer unit 160.

[0051] In this embodiment, the dynamic buffer roller 162 can achieve dynamic adjustment of the electrode strip position through active control. Specifically, the dynamic buffer roller 162 can be moved back and forth along the buffer direction X by using a servo motor in conjunction with a lead screw mechanism or a linear motor for direct drive. The second guide roller 150 can ensure that the electrode strip can smoothly transition to the dynamic buffer roller 162 after the position correction unit completes the correction.

[0052] The solution in this application achieves dynamic buffering of the electrode strip by controlling the reciprocating motion of the dynamic buffer roller 162. This design can absorb tension fluctuations and speed differences in the upstream and downstream drive of the electrode strip during transmission in real time, reducing the risk of strip breakage. The second guide roller 150 ensures that the strip can transition to the dynamic buffer unit 160 after position correction, avoiding electrode strip misalignment and electrode tab folding. Simultaneously, the combined use of the dynamic buffer roller 162 and the second guide roller 150 forms a complete strip transmission and buffering system, effectively improving the system's operational stability and transmission accuracy.

[0053] In some embodiments, the functional execution components of the transmission drive unit include a drive roller 180. A dynamic buffer roller 162 is disposed between the second guide roller 150 and the drive roller 180 on the electrode strip transmission path 101. The tension adjustment unit 130 further includes a second tension buffer roller 132 and a tension detection roller 133 disposed downstream of the drive roller 180. The second tension buffer roller 132 is disposed between the drive roller 180 and the tension detection roller 133. The second tension buffer roller 132 is a functional execution component used to dynamically compensate for changes in the tension of the electrode strip. The structure of the second tension buffer roller can be the same as that of the first tension buffer roller 131 described above, and will not be repeated here.

[0054] The solution provided in this application achieves segmented control and continuous adjustment of tension by optimizing the positional layout and quantity limitations of each functional execution component. The dynamic buffer roller 162 is positioned between the second guide roller 150 and the drive roller, ensuring that the electrode strip passes through the dynamic buffer unit 160 before entering the traction area of ​​the drive roller. This layout fully utilizes the reciprocating movement characteristics of the dynamic buffer roller 162 to effectively absorb the tension fluctuations accumulated in the upstream transmission path 101.

[0055] Because the second guide roller 150 stably guides the strip output from the position correction unit 140 to the buffer area, the dynamic buffer roller 162 can independently adjust the electrode strip path and tension, providing uniform input tension for the traction drive roller 180. Simultaneously, the second tension buffer roller 132 and the tension detection roller 133, located downstream of the traction drive roller 180, form a closed-loop control mechanism. When the tension detection roller 133 detects a tension change, the second tension buffer roller 132 can immediately perform dynamic compensation through a swinging motion, thereby ensuring the strip maintains stable operation downstream of the transmission path 101. This layout design not only solves the problem of sudden tension changes easily introduced during drive roller traction but also achieves a more compact structure and improved operational reliability of the belt system.

[0056] In this embodiment, the dynamic buffer roller 162 is driven by a drive component to pull the electrode strip in a direction away from or towards the traction drive roller 180, thereby changing the effective path length of the electrode strip to achieve buffering. The drive component can be an actuator providing linear power, such as a servo motor and ball screw transmission assembly, as well as a guide assembly of guide rails and sliders, capable of adjusting the travel of the buffer roller in real time based on tension detection signals. When tension fluctuations occur in the electrode strip during its movement, the drive component moves the dynamic buffer roller 162 according to the tension detection signal, achieving dynamic compensation by changing the physical length of the electrode strip path.

[0057] In some embodiments, the strip supply unit 110 includes an unwinding roller, and a drive roller 180 is configured to have different operating states, forming a speed difference with the unwinding roller in different operating states. It also includes a buffer control module electrically connected to the unwinding roller, drive roller 180, and dynamic buffer roller 162. The buffer control module acquires the operating signals of the unwinding roller and drive roller 180, and sends control commands to the dynamic buffer roller 162 based on these operating signals. When the speed of the drive roller 180 is less than the speed of the unwinding roller, the buffer control module controls the dynamic buffer roller 162 to move along a first direction to buffer the electrode strip provided by the strip supply unit 110. When the speed of the drive roller 180 is greater than the speed of the unwinding roller, the buffer control module controls the dynamic buffer roller 162 to move along a second direction to release the buffered electrode strip. The first and second directions are opposite, respectively along different guiding directions of the guiding assembly. Alternatively, the first direction can be a direction away from the drive roller 180, and the second direction can be a direction closer to the drive roller 180.

[0058] In this embodiment, the drive roller 180 can be configured in conjunction with the cutting device of the electrode processing equipment. Under different cutting conditions, the drive roller 180 has operating states that coordinate with these different cutting conditions, such as start / stop and acceleration / deceleration states. When the rotational speed of the drive roller 180 is less than that of the unwinding roller, since the unwinding roller always rotates at a constant speed to supply material, the dynamic buffer roller 162 moves in the first direction to buffer the electrode strip supplied by the material supply unit 110, thus stabilizing the tension of the entire transmission path. When the rotational speed of the drive roller 180 is greater than that of the unwinding roller, the dynamic buffer roller 162 moves in the second direction to release the previously buffered electrode strip. With this configuration, when the cutting device is in different cutting conditions, under the premise of stable material supply from the material supply unit 110, the dynamic buffer roller 162 of this application can absorb the speed difference between the drive roller 180 and the second drive roller, thereby flexibly controlling the feed rate of the electrode strip to the downstream cutting station, while avoiding electrode strip breakage due to unstable tension.

[0059] In some embodiments, the electrode transport system 100 includes at least two sets of tape supply units 110 and a tape splicing device (not shown). The at least two sets of tape supply units 110 are used to alternately supply electrode tape, and the tape splicing device is used to splice the new and old electrode tape at least when the two sets of tape supply units 110 are changing rolls, thereby achieving stable material supply of the transport system.

[0060] The material supply unit 110 refers to a functional unit that can operate independently and provide electrode material strips. It can be implemented by a structure that drives the unwinding roller with a synchronous motor or an independent motor. In this embodiment, the material supply unit 110 performs preliminary correction on the electrode material strip and then introduces it to the surface treatment unit 120 through the guide roller 112.

[0061] In this embodiment, after passing through the guide roller 112, the electrode strip is vertically guided into the surface treatment unit 120 for processing. The electrode strip maintains a stable vertical transmission state between the guide roller 112 and the surface treatment unit 120, which facilitates the precise introduction of the electrode strip into the surface treatment unit 120 in conjunction with the correction and detection components provided here. It also eliminates the need for multiple independent guide and transition rollers required between the traditional composite station and the surface treatment station, significantly reducing the belt length. This not only simplifies the system layout but also reduces the risk of tension gradient breakage by reducing the belt detour path, effectively alleviating the electrode tab folding phenomenon and belt deviation problem on the electrode strip, and improving the overall operational stability. This structural design meets the requirement of stable feeding of the electrode strip while maintaining the simplicity of the system structure, reducing the difficulty of assembly and debugging, and reducing material waste.

[0062] In some embodiments, the total number of functional execution components in the strip supply unit 110, surface treatment unit 120, tension adjustment unit 130, position correction unit 140, dynamic buffer unit 160, and transmission drive unit is configured to be less than or equal to 13. In related technologies, the number of functional execution components is typically 15 or more. This solution reduces it to less than 13, a reduction of approximately 20% to 40%. By limiting the total number of functional execution components to less than 13, several problems existing in the prior art are effectively solved. First, the simplification of the number of functional execution components shortens the electrode transfer path 101, reducing material waste and lowering the complexity of assembly and debugging. Second, by reducing the contact frequency between the electrode and the roller surface of the functional execution components, the imbalance of tension gradient transmission between multiple rollers is alleviated, significantly reducing the risk of electrode strip breakage. Furthermore, reducing the number of functional execution components also optimizes the electrode's detour path, preventing the electrode tabs on the electrode strip from folding or shifting during frequent turns. Therefore, the solution proposed in this application achieves a lightweight and compact layout of the system structure by rationally arranging and integrating or reusing the functions of each unit, while ensuring the complete realization of core functions such as surface, tension control, correction and dynamic buffering.

[0063] In related technologies, during the transmission of electrode sheets (especially multi-tab electrode sheets), additional stress is generated due to bending and turning at each functional execution component, making the tabs prone to folding. This application significantly reduces the number of functional execution components and shortens the total length of the belt by optimizing the overall layout of the electrode sheet conveyor system. This effectively solves the technical problems of high tab folding risk, high rejection and abnormality rates at subsequent stations, and serious material waste in multi-roller, long belt conveyor systems when transmitting multi-tab electrode sheets.

[0064] Specifically, this application significantly reduces the number of rollers that the electrode sheet needs to bypass and contact by simplifying and optimizing the layout of the functional execution components. This not only reduces the possibility of the electrode tabs folding due to repeated bending and shaking, but also ensures that the electrode sheet enters the subsequent workstation in a more stable posture, thereby reducing the rejection rate and various operational anomalies in the later processes and improving the production yield. At the same time, the compact design shortens the transmission path 101 of the electrode sheet from unwinding to the subsequent workstation. This makes the system response faster and the tension control more direct and precise. On the other hand, it also significantly reduces the length of electrode sheets that must be disposed of as waste in scenarios such as production interruptions and roll changes, reducing raw material loss. Thus, while improving the stability and reliability of transmission, it also enhances the economic efficiency of production. Accordingly, this application also provides an electrode processing apparatus, which includes an electrode transfer system 100 as described in any of the above embodiments.

[0065] The electrode processing equipment of this application can be a cutting and stacking integrated machine for processing electrode sheets, but is not limited to this. Because the electrode processing equipment provided in this application adopts the electrode transport system 100 of the above embodiment, the number of functional execution components is reduced, thus reducing the number of electrode bending cycles, effectively reducing electrode tab folding, belt misalignment, and belt breakage risks, and improving product yield. In addition, the shortened electrode transport belt length reduces waste of debugging consumables, while also reducing maintenance frequency and improving production stability.

[0066] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A polarimeter transmission system, characterized in that, At least including those arranged along the defined transmission path: The feed strip unit is used to release the electrode feed strip; A surface treatment unit is used to process the surface of the electrode strip; Tension adjustment unit, used to adjust the tension of the electrode strip; A position correction unit is used to correct the position of the electrode strip during transmission; A dynamic caching unit is used to dynamically cache the electrode strip in the transmission path; A transmission drive unit is used to drive the electrode strip to move along the transmission path; The material supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit are integrated with at least two functional execution components.

2. The electrode transmission system according to claim 1, characterized in that: The surface treatment unit is located downstream of the material strip supply unit. The functional execution component of the surface treatment unit includes at least one surface processing roller, which processes the surface of the electrode strip. The surface processing roller adjacent to the material supply unit is also used to guide the electrode material released by the material supply unit to the next station.

3. The electrode transmission system according to claim 1, characterized in that: The functional execution components of the tension adjustment unit include a movable first tension buffer roller and a tension detection roller. The first tension buffer roller is disposed between the surface treatment unit and the position correction unit to buffer unwinding tension fluctuations. It also includes a cleaning device integrated into the tension detection roller for cleaning the electrode strip that passes through the tension detection roller.

4. The electrode transmission system according to claim 3, characterized in that: The functional execution components of the surface treatment unit include a first surface processing roller and a second surface processing roller arranged sequentially along the electrode strip conveying direction. The first surface processing roller and the second surface processing roller are respectively used to contact the two side surfaces of the electrode strip to process the two side surfaces of the electrode strip respectively. The functional execution components of the position correction unit include a correction feed roller and a correction discharge roller arranged in parallel. The functional execution components of the tension adjustment unit are disposed between the surface treatment unit and the position correction unit, and are used to adjust the tension of the electrode strip between the surface treatment unit and the position correction unit.

5. The electrode transmission system according to claim 1, characterized in that: The functional components of the material strip supply unit include a first guide roller, which is used to apply force to the released electrode material strip and change the transmission direction to guide it to the surface treatment unit.

6. The electrode transmission system according to claim 1, characterized in that: The functional execution component of the dynamic buffer unit includes a reciprocating dynamic buffer roller, which is driven by a drive component to move the electrode strip back and forth in the buffer direction. Downstream of the position correction unit, a second guide roller is provided, which is used to guide the electrode strip output by the position correction unit to the dynamic buffer unit.

7. The electrode transmission system according to claim 6, characterized in that: The functional execution component of the transmission drive unit includes a drive roller, and the dynamic buffer roller is disposed between the second guide roller and the drive roller on the transmission path; The tension adjustment unit includes a second tension buffer roller and a tension detection roller disposed downstream of the drive roller, with the second tension buffer roller disposed between the drive roller and the tension detection roller.

8. The electrode transmission system according to claim 7, characterized in that, Also includes: The material strip supply unit includes an unwinding roller, and the drive roller is configured to have different operating states and to form a speed difference with the unwinding roller in different operating states; It also includes a buffer control module. When the rotational speed of the drive roller is less than the rotational speed of the unwinding roller, the buffer control module controls the dynamic buffer roller to move along a first direction to buffer the electrode strip provided by the strip supply unit. When the rotational speed of the drive roller is greater than the rotational speed of the unwinding roller, the buffer control module controls the dynamic buffer roller to move along a second direction to release the buffered electrode strip.

9. The electrode transmission system according to any one of claims 1-8, characterized in that: The total number of functional execution components in the tape supply unit, surface treatment unit, tension adjustment unit, position correction unit, dynamic buffer unit, and transmission drive unit is configured to be less than or equal to 13.

10. An electrode processing device, characterized in that, Includes the electrode transmission system as described in any one of claims 1-9.

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