Battery cell adhesive paper activation device

Abstract

The application discloses a kind of battery cell adhesive paper activation device, it includes: feeding mechanism, including battery cell carrier, carrier bearing platform and linear motion force module, linear motion force module is also set as when pressing activation mechanism presses, drive carrier bearing platform in first pressing station and second pressing station between back and forth movement in pre-set mode;Pressing activation mechanism, including roller module, module mounting seat, pressure sensor and lifting power module, the top side of roller module is elastically assembled on module mounting seat;Pressure sensor in roller module pressing, real-time monitoring the pressure value of roller module feedback;Lifting power module is also set as according to the pressure value of pressure sensor feedback lifting adjustment module mounting seat position, to adjust the pressing force of roller module acting on the battery cell adhesive paper of battery cell to be activated, to make the pressure value of pressing force keep constant.The technical scheme, it can significantly improve the stability, consistency and yield of battery cell adhesive paper activation.

Description

Technical Field

[0001] This application relates to the field of battery cell dispensing technology, and in particular to a battery cell adhesive paper activation device. Background Technology

[0002] In the processing of 3C consumer batteries, a layer of adhesive tape needs to be wrapped around the outside of the cell, and the tape needs to be activated by applying pressure to ensure good adhesion to the cell. Traditionally, this is done manually by operators using scrapers or rollers, but this method requires a high level of skill. Operators must avoid applying excessive pressure, which could damage the cell, or insufficient pressure, which could cause the tape to detach due to inadequate activation. To address the issue of reliance on manual operation, existing technologies have developed activation devices that use servo modules to drive the battery and employ pneumatic rollers for pressure application. While this achieves a degree of automation, issues such as inconsistent cell thickness and uneven surfaces make it difficult to maintain consistent activation pressure, potentially leading to poor activation or battery damage due to overpressure. Summary of the Invention

[0003] The purpose of this application is to provide a battery cell adhesive tape activation device, which aims to improve the problem that existing battery cell adhesive tape activation devices are prone to problems such as inconsistent thickness and uneven surface of the battery cells themselves when automating the activation of the battery cell adhesive tape, which makes it difficult to maintain consistent activation pressure, resulting in poor activation or battery overvoltage damage.

[0004] To achieve this objective, embodiments of this application provide a battery cell adhesive tape activation device, which includes a feeding mechanism and a pressing activation mechanism. The device further includes loading and unloading stations, a first pressing station, and a second pressing station. The feeding mechanism includes a cell carrier, a carrier platform for supporting and positioning the cell carrier, and a translational force module for driving the carrier platform to switch between the loading / unloading station and the first pressing station. The cell carrier is configured to support and position the cell to be activated. The translational force module is also configured to drive the carrier platform to move back and forth between the first pressing station and the second pressing station in a preset manner when the pressing activation mechanism presses down. The pressure activation mechanism includes a roller module, a module mounting base, a pressure sensor, and a lifting power module for driving the module mounting base to rise and fall. The top side of the roller module is elastically mounted on the module mounting base in the vertical direction. The pressure sensor is installed between the top side of the roller module and the module mounting base to monitor the pressure value fed back by the roller module in real time when the roller module is pressed down. The lifting power module is also configured to adjust the position of the module mounting base according to the pressure value fed back by the pressure sensor, so as to adjust the downward pressure of the roller module on the cell adhesive paper of the cell to be activated, so as to keep the downward pressure value constant.

[0005] Optionally, in some embodiments of this application, the battery cell carrier includes a carrier body and a battery cell positioning groove recessed on the upper surface of the carrier body, wherein the battery cell positioning groove is configured to lock and fix the battery cell to be activated.

[0006] Optionally, in some embodiments of this application, the cell carrier is detachably mounted on the upper surface of the carrier platform via a snap-fit ​​structure or a screw structure.

[0007] Optionally, in some embodiments of this application, the translational power module includes a first lead screw, a translational servo motor that drives the first lead screw to rotate, and a first lead screw nut that is threadedly engaged with the first lead screw and fixed to the carrier bearing platform. The first lead screw extends along the arrangement direction between the loading / unloading station, the first pressing station, and the second pressing station.

[0008] Optionally, in some embodiments of this application, the translational power module further includes a synchronous belt drive assembly, and the output shaft of the translational servo motor is connected to the first lead screw via the synchronous belt drive assembly to drive the first lead screw to rotate.

[0009] Optionally, in some embodiments of this application, the translational power module further includes a first limiting sensor, a first stroke sensing component, a second stroke sensing component, and an origin limiting sensor component. The first limiting sensor is fastened to the first lead screw nut. The first stroke sensing component is set at the maximum stroke position of the translational power module on one side of the movement direction. The second stroke sensing component is set at the maximum stroke position of the translational power module on the other side of the movement direction. The origin limiting sensor component is set at the origin position of the translational power module. The first stroke sensing component, the second stroke sensing component, and the origin limiting sensor component are respectively configured to cooperate with the first limiting sensor to limit the maximum movement stroke of the vehicle carrying platform and determine the origin position.

[0010] Optionally, in some embodiments of this application, the lifting power module includes a second lead screw, a lifting servo motor for driving the second lead screw to rotate, and a second lead screw nut that is threadedly engaged with the second lead screw and fixed to the module mounting base, wherein the second lead screw extends vertically.

[0011] Optionally, in some embodiments of this application, the lifting power module further includes a module bracket, which includes two vertical guide rods and a horizontal connecting rod. The two ends of the horizontal connecting rod are respectively fastened to the top ends of the two vertical guide rods. The two ends of the module mounting base are respectively slidably engaged with one of the vertical guide rods in the vertical direction. The lifting servo motor is fixed to the bottom side of the horizontal connecting rod, and the output shaft of the lifting servo motor is fastened to the second lead screw that passes through the horizontal connecting rod, so as to drive the second lead screw to rotate coaxially.

[0012] Optionally, in some embodiments of this application, the lifting power module further includes a second limit sensor, an upper stroke sensor component, a third limit sensor, and a lower stroke sensor component; The top ends of the second limiting sensor and the third limiting sensor are both fastened to the bottom side of the horizontal connecting rod, and the second limiting sensor and the third limiting sensor are respectively located on two opposite sides of the lifting servo motor. The upper stroke sensing component and the lower stroke sensing component are respectively fastened to the back side of the module mounting base. The upper stroke sensing component is set at the maximum stroke position of the lifting power module in the upward direction to cooperate with the second limit sensing piece to limit the maximum upward stroke of the module mounting base. The lower stroke sensing component is set at the maximum stroke position of the lifting power module in the downward direction to cooperate with the third limit sensing piece to limit the maximum downward stroke of the module mounting base.

[0013] Optionally, in some embodiments of this application, the roller module includes a roller mounting frame and a rubber-coated roller rotatably disposed on the bottom side of the roller mounting frame, and the top side of the roller mounting frame is elastically connected to the module mounting base in the vertical direction through an elastic element.

[0014] The battery cell adhesive paper activation device provided in this application embodiment, through the above-described structural configuration, sets up loading and unloading stations, a first pressing station, and a second pressing station. It utilizes a translational motion force module to drive a carrier platform to switch between the loading and unloading stations and the first pressing station. Simultaneously, during the pressing activation process, the carrier platform is driven to move back and forth between the first and second pressing stations, achieving dynamic displacement of the battery cell adhesive paper during activation. This allows the roller module to uniformly roll and apply pressure to the adhesive paper on the surface of the battery cell to be activated. Based on this, through… By flexibly mounting the roller module onto the module mounting base and placing a pressure sensor between them to monitor the downward pressure in real time, the lifting power module dynamically adjusts the height of the module mounting base based on the downward pressure feedback. This precisely regulates the downward pressure exerted by the roller module on the battery cell adhesive tape, keeping it constant. This effectively adapts to situations where battery cell thickness is inconsistent or surface is uneven. It avoids battery cell damage due to excessive pressure and prevents poor activation or tape detachment due to insufficient pressure, significantly improving the stability, consistency, and yield of battery cell adhesive tape activation. Therefore, this technical solution effectively improves the problem that existing battery cell adhesive tape activation devices, when automating battery cell adhesive tape activation, are prone to inconsistent activation pressure due to issues such as inconsistent battery cell thickness and surface unevenness, leading to poor activation or battery overvoltage damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0016] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0017] Figure 1 This is a schematic diagram of the battery cell adhesive tape activation device according to an embodiment of this application; Figure 2 for Figure 1 A partial structural schematic diagram of the battery cell adhesive tape activation device is shown. Figure 3 for Figure 1 A partial schematic diagram of the feeding mechanism of the battery cell adhesive tape activation device shown; Figure 4 for Figure 1 The diagram shows the structural schematic of the pressing activation mechanism of the battery cell adhesive tape activation device. Figure 5 for Figure 4 The diagram shows another angle of the downward activation mechanism.

[0018] Illustrations: 1. Battery cell adhesive tape activation device; 10. Feeding mechanism; 11. Battery cell carrier; 111. Carrier body; 112. Battery cell positioning groove; 12. Carrier bearing platform; 13. Translational force module; 131. First lead screw; 132. Translational servo motor; 133. First lead screw nut; 134. Synchronous belt drive assembly; 135. First limit sensor; 136. First stroke sensor assembly; 137. Second stroke sensor assembly; 138. Origin limit sensor assembly; 20. Downward activation machine Structure; 21. Roller module; 211. Roller mounting bracket; 212. Rubber-coated roller; 22. Module mounting base; 23. Pressure sensor; 24. Lifting power module; 241. Second lead screw; 242. Lifting servo motor; 243. Second lead screw nut; 244. Module bracket; 2441. Vertical guide rod; 2442. Horizontal connecting rod; 245. Second limit sensor; 246. Upper stroke sensing component; 247. Third limit sensor; 248. Lower stroke sensing component; 25. Elastic element. Detailed Implementation

[0019] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "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. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0021] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 1 to 5 As shown, in one embodiment, this application provides a battery cell adhesive tape activation device 1, which specifically includes a feeding mechanism 10 and a pressing activation mechanism 20. The battery cell adhesive tape activation device 1 is also provided with loading and unloading stations, a first pressing station and a second pressing station. The feeding mechanism 10 includes a battery cell carrier 11, a carrier platform 12 for supporting and positioning the battery cell carrier 11, and a translational force module 13 for driving the carrier platform 12 to switch between the loading and unloading station and the first pressing station. The battery cell carrier 11 is configured to support and position the battery cell to be activated. The translational force module 13 is also configured to drive the carrier platform 12 to move back and forth between the first pressing station and the second pressing station in a preset manner when the pressing activation mechanism 20 presses down. The pressure activation mechanism 20 includes a roller module 21, a module mounting base 22, a pressure sensor 23, and a lifting power module 24 that drives the module mounting base 22 to move up and down. The top side of the roller module 21 is elastically mounted on the module mounting base 22 in the vertical direction. The pressure sensor 23 is installed between the top side of the roller module 21 and the module mounting base 22 to monitor the pressure value fed back by the roller module 21 in real time when the roller module 21 is pressed down. The lifting power module 24 is also configured to adjust the position of the module mounting base 22 according to the pressure value fed back by the pressure sensor 23, thereby adjusting the downward pressure of the roller module 21 on the cell adhesive paper of the cell to be activated, so that the downward pressure value remains constant.

[0023] It should be noted that the cell adhesive activation device 1 in this embodiment is mainly used in the cell adhesive activation process of 3C consumer batteries. Through an integrated automated mechanism, it achieves precise and stable pressure application to the cell adhesive. Therefore, the cell to be activated mentioned above specifically refers to a 3C consumer battery cell that has already been coated with cell adhesive and needs to be activated by applying pressure to ensure the adhesive fully adheres to the cell body. The aforementioned translational force module 13 is mainly used to achieve precise positioning and dynamic displacement of the cell to be activated in the horizontal direction, in conjunction with the roller module 21 to complete rolling pressure application. The aforementioned lifting power module 24 is mainly used to achieve precise feeding and real-time pressure compensation of the roller module 21 in the vertical direction, thereby ensuring constant activation pressure. Since the roller module 21 and the module mounting base 22 are elastically assembled, when the roller module 21 is pressed down so that its bottom side (specifically, the rubber-coated roller 212 mentioned below) abuts against the cell adhesive paper on the surface of the cell to be activated, the roller module 21 will generate vertical displacement following the undulation of the cell surface. Specifically, when the roller module 21 rolls along the surface of the battery cell under the action of the translational force module 13 driving the carrier platform 12 to move back and forth between the first pressing station and the second pressing station, if it encounters a protruding part on the surface of the battery cell, the roller module 21 will be forced to lift upward, compressing the elastic element 25 (i.e., the device that realizes the elastic assembly between the two, specifically a rectangular spring or other structure) between it and the module mounting base 22, resulting in a decrease in the distance between the top side of the roller module 21 and the module mounting base 22; conversely, when the roller module 21 rolls to a concave part on the surface of the battery cell, the compressed elastic element 25 will release some of its elastic force, pushing the roller module 21 downward, thus increasing the distance between the top side of the roller module 21 and the module mounting base 22. This dynamic displacement process essentially changes the compression of the elastic element 25. According to Hooke's Law, the compression of the elastic element 25 is proportional to the generated elastic force. Therefore, the force exerted by the elastic element 25 on the pressure sensor 23 also changes dynamically, resulting in a corresponding change in the pressure value fed back by the roller module 21 monitored by the pressure sensor 23. In other words, the pressure value monitored by the pressure sensor 23 is the real-time feedback of the compression change of the elastic element 25 due to the unevenness of the cell surface. This feedback signal accurately reflects the deviation between the actual pressure currently applied by the roller module 21 to the cell adhesive paper and the preset constant pressure value. Based on this real-time feedback signal, the lifting power module 24 drives the module mounting base 22 to perform micron-level lifting compensation through a closed-loop control algorithm, dynamically offsetting the pressure fluctuations caused by the undulations of the cell surface, thereby ensuring that the pressure exerted by the roller module 21 on the cell adhesive paper is always accurately maintained at the preset constant value, achieving precise closed-loop control of the activation pressure.

[0024] In addition, the battery cell adhesive activation device 1 also includes a frame and a control system to support and coordinate the automated operation of the aforementioned mechanisms. Specifically, the control system may include a touchscreen display that receives a preset pressure value input by the user. Based on the deviation between the preset pressure value and the pressure value fed back in real time by the pressure sensor 23, the control system uses a built-in PID (proportional-integral-derivative) control algorithm to precisely control the operation of the lifting power module 24, driving the module mounting base 22 to perform lifting compensation, forming a closed-loop control. Compared to the traditional method of indirectly controlling pressure by adjusting a pneumatic pressure regulating valve, which requires complex adjustments based on experience, this solution achieves direct digital setting and precise automated maintenance of the activation pressure. Operators only need to input the required pressure value on the touchscreen, greatly simplifying the changeover and debugging process, reducing the requirements for technical personnel, and significantly improving line changeover efficiency and equipment usability.

[0025] Furthermore, when the translational power module 13 drives the carrier platform 12 to move to the loading and unloading station, manual loading can be performed before the cell adhesive tape is activated, or the external automatic loading robot arm can automatically place the cell to be activated on the cell carrier 11 on the carrier platform 12 for corresponding fixation to complete the corresponding automated loading operation. Manual unloading can also be performed after the cell adhesive tape is activated, or the external automatic unloading robot arm can automatically remove the corresponding activated cell from the carrier platform 12 to complete a complete work cycle.

[0026] Thus, the battery cell adhesive tape activation device 1 of this application embodiment, through the above-described structural configuration, sets up loading and unloading stations, a first pressing station, and a second pressing station, and uses the translational motion force module 13 to drive the carrier platform 12 to switch between the loading and unloading station and the first pressing station. Simultaneously, during the pressing activation process, the carrier platform 12 is driven to move back and forth between the first pressing station and the second pressing station, realizing the dynamic displacement of the battery cell adhesive tape during the activation process. This allows the roller module 21 to uniformly roll and apply pressure to the battery cell adhesive tape on the surface of the battery cell to be activated. Based on this, through... By elastically mounting the roller module 21 onto the module mounting base 22 and placing a pressure sensor 23 between them to monitor the downward pressure in real time, the lifting power module 24 dynamically adjusts the height of the module mounting base 22 based on the downward pressure feedback. This precisely adjusts the downward pressure exerted by the roller module 21 on the cell adhesive paper, keeping it constant. This effectively adapts to situations where the cell thickness is inconsistent and the surface is uneven. It avoids damage to the cell due to excessive pressure and prevents poor activation or detachment of the cell adhesive paper due to insufficient pressure, significantly improving the stability, consistency, and yield of the cell adhesive paper activation.

[0027] In some examples, such as Figure 1 and Figure 2As shown, the battery cell carrier 11 includes a carrier body 111 and a battery cell positioning groove 112 recessed on the upper surface of the carrier body 111. The battery cell positioning groove 112 is configured to hold and fix the battery cell to be activated. Specifically, the battery cell positioning groove 112 can adopt a contour design, and its outline shape matches the shape of the battery cell to be activated. When the battery cell to be activated is placed into the groove of the battery cell positioning groove 112, the groove wall of the battery cell positioning groove 112 can effectively constrain the lateral displacement of the battery cell to be activated, achieving precise physical limitation. In this way, through the contour-designed battery cell positioning groove 112, the battery cell to be activated can be quickly and accurately clamped and positioned, preventing displacement of the battery cell to be activated during translation and pressing, ensuring the consistency of the activation position, and thus avoiding quality problems such as adhesive tape misalignment, wrinkles, or uneven local pressure caused by positioning deviation. In addition, the bottom of the cell positioning groove 112 is usually set as a flat support surface, which can provide stable support for the cell to be activated, ensuring that the cell to be activated is subjected to uniform force when the roller module 21 is pressed down, and further improving the stability of the activation effect.

[0028] It should be noted that the dimensions of the cell positioning slot 112 in this example can be customized according to different cell models to ensure optimal fixing effect. In practical applications, for 3C consumer battery cells of different specifications and thicknesses, quick line replacement can be achieved simply by replacing the cell carrier 11 of the corresponding size, without adjusting the overall structure of the machine, which significantly improves the versatility of the equipment and production changeover efficiency.

[0029] In some examples, such as Figure 1 and Figure 2 As shown, the cell carrier 11 is detachably mounted on the upper surface of the carrier platform 12 via a snap-fit ​​structure or a screw structure. Specifically, when using the snap-fit ​​structure, the carrier platform 12 is equipped with elastic hooks that engage with the bottom slots of the cell carrier 11, allowing operators to quickly install and remove the cell carrier 11 simply by pressing the hooks. When using the screw structure, the cell carrier 11 and the carrier platform 12 are precisely positioned using multiple locating pin holes, and then secured with hand-tightening screws or Allen screws to ensure stability after installation. This facilitates quick replacement of the corresponding cell carrier 11 for different cell models. When production tasks change, operators can complete the carrier replacement within seconds without the need for complex tools, significantly shortening equipment changeover time and improving equipment versatility and line changeover efficiency.

[0030] It should be noted that the aforementioned detachable connection method not only ensures the convenience of the replacement process, but more importantly, through the precision positioning structure (such as the matching of positioning pins and positioning holes, V-grooves and bosses, etc.) set between the cell carrier 11 and the carrier support platform 12, the horizontal positional accuracy and repeatability of the cell carrier 11 are ensured after each installation. This high-precision repeatability ensures that after changing carriers, different batches or different models of cells can still maintain their reference position in the equipment consistent with the preset coordinate height, without the need to repeatedly adjust the pressing position of the roller module 21 or the stroke parameters of the translational force module 13. This improves line change efficiency while also ensuring the consistency and stability of the activation process during mass production.

[0031] In some examples, such as Figure 2 and Figure 3 As shown, the translational motion module 13 includes a first lead screw 131, a translational servo motor 132 that drives the first lead screw 131 to rotate, and a first lead screw 131 nut that is threadedly engaged with the first lead screw 131 and fixed to the carrier platform 12. The first lead screw 131 extends along the arrangement direction between the loading / unloading station, the first pressing station, and the second pressing station. Thus, through the lead screw transmission mechanism, the rotational motion of the translational servo motor 132 can be precisely converted into the linear reciprocating motion of the carrier platform 12, achieving precise positioning and smooth switching of the carrier platform 12 between the loading / unloading station, the first pressing station, and the second pressing station. The lead screw transmission method has advantages such as high transmission efficiency, good positioning accuracy, and strong load-bearing capacity, and can meet the stringent requirements for positional accuracy and motion stability during the activation process of the battery cell adhesive paper. Meanwhile, the translational servo motor 132 has good speed control and position control performance. It can flexibly adjust the moving speed, acceleration and moving trajectory of the carrier platform 12 according to the preset program to ensure that the battery cell to be activated can be accurately aligned with the roller module 21 when it enters the pressing station, and complete uniform rolling pressure according to the preset reciprocating moving path during the activation process.

[0032] It should be noted that, in this example, the first lead screw 131 is preferably a ball screw to further reduce transmission friction, improve transmission efficiency and positioning accuracy, and extend the service life of the equipment. The control signal of the translation servo motor 132 comes from the central control system of the equipment (such as a PLC). This system sends instructions to the translation servo motor 132 according to preset process parameters (such as moving speed, number of reciprocations, dwell time, etc.) to achieve precise control of the motion trajectory of the carrier platform 12. In addition, to ensure the safe operation of the equipment, the translation power module 13 can also be equipped with limit devices such as limit switches or photoelectric sensors to limit the maximum travel of the carrier platform 12 and prevent collision accidents caused by the carrier platform 12 exceeding the safe range due to abnormal control.

[0033] In some examples, the translational force module 13 drives the carrier platform 12 to reciprocate between the first pressing station and the second pressing station at least once (preferably twice), so that the roller module 21 applies multiple rolling pressures to the battery cell adhesive paper. In this way, by setting multiple reciprocating rolling pressures, the action of repeated manual pressing can be simulated, ensuring that every minute area of ​​the battery cell adhesive paper and the battery cell surface is fully and evenly activated, further improving the adhesion strength and consistency of the battery cell adhesive paper. Furthermore, to ensure that the carrier platform 12 can move back and forth more smoothly under the drive of the translational force module 13, the frame is also equipped with parallel arranged double horizontal guide rails (not shown in the figure) and double horizontal sliders that slide in cooperation with each horizontal guide rail. The carrier platform 12 is slidably connected to the double horizontal guide rails via the double horizontal sliders. Thus, the combination of double horizontal guide rails and double horizontal sliders can effectively disperse the lateral load during the movement process, improve the motion accuracy and operation stability of the carrier platform 12 during high-speed reciprocating motion, avoid uneven distribution of cell adhesive paper activation pressure due to motion jamming or vibration, and further ensure the consistency of activation effect.

[0034] In some examples, such as Figure 2 and Figure 3 As shown, the translational power module 13 also includes a synchronous belt drive assembly 134. The output shaft of the translational servo motor 132 is connected to the first lead screw 131 via the synchronous belt drive assembly 134 to drive the first lead screw 131 to rotate. In this way, the power of the translational servo motor 132 is transmitted to the first lead screw 131 through the synchronous belt drive assembly 134. On the one hand, the smoothness and precise transmission ratio of the synchronous belt drive ensure the smoothness of movement and the accuracy of positioning of the carrier platform 12 during translation. On the other hand, the synchronous belt drive assembly 134 allows for a certain installation gap between the translational servo motor 132 and the first lead screw 131, making the motor installation position more flexible and facilitating a compact overall structure layout. Furthermore, the synchronous belt itself has a certain buffering and vibration absorption capacity, which can absorb the instantaneous impact generated when the motor starts, stops, or reverses, effectively protecting the transmission components and extending the service life of the equipment.

[0035] It should be noted that the synchronous belt drive assembly 134 in this example specifically consists of two synchronous pulleys, a synchronous belt, and a tensioning mechanism. The driving synchronous pulley is mounted on the output shaft of the translation servo motor 132, the driven synchronous pulley is mounted on the input end of the first lead screw 131, and the synchronous belt is wound between the two. The tensioning mechanism is used to adjust the tension of the synchronous belt to ensure no slippage during transmission, thus ensuring transmission accuracy and reliability. In practical applications, different specifications of synchronous pulleys and synchronous belts can be selected according to the load size and speed requirements to match different transmission needs. Furthermore, to further improve transmission accuracy, a coupling for direct drive can also be considered, but synchronous belt drives have unique advantages in terms of layout flexibility and vibration absorption, making them particularly suitable for translational motion scenarios requiring frequent starts, stops, and reversals, as described in this application.

[0036] In some examples, such as Figure 2 and Figure 3 As shown, the translational power module 13 also includes a first limit sensor 135, a first stroke sensor component 136, a second stroke sensor component 137, and an origin limit sensor component 138. The first limit sensor 135 is fastened to the first lead screw 131 with a nut. The first stroke sensor component 136 is set at the maximum stroke position of the translational power module 13 on one side of the movement direction. The second stroke sensor component 137 is set at the maximum stroke position of the translational power module 13 on the other side of the movement direction. The origin limit sensor component 138 is set at the origin position of the translational power module 13. The first stroke sensor component 136, the second stroke sensor component 137, and the origin limit sensor component 138 are respectively configured to cooperate with the first limit sensor 135 to limit the maximum movement stroke of the carrier platform 12 and determine the origin position. Thus, when the translational force module 13 drives the carrier platform 12 to move, the first limit sensor 135 moves synchronously with the first lead screw 131 nut. When the carrier platform 12 moves to one extreme position, the first limit sensor 135 triggers the first stroke sensor component 136, and the control system immediately issues a stop or reverse command to prevent the carrier platform 12 from overtraveling and causing mechanical collisions or equipment damage. Similarly, when it moves to the other extreme position, the second stroke sensor component 137 is triggered, realizing bidirectional overtraveling protection. The origin limit sensor component 138 provides a precise reference point for the control system. Each time it is powered on or reset, the translational force module 13 drives the carrier platform 12 to the position where the origin limit sensor component 138 is triggered, thereby establishing an absolute coordinate system and ensuring that the carrier platform 12 can be accurately and repeatedly positioned at the loading / unloading station, the first pressing station, and the second pressing station, providing reliable positional assurance for the subsequent adhesive activation process.

[0037] It should be noted that in this example, the first stroke sensing component 136, the second stroke sensing component 137, and the origin limit sensing component 138 can all be non-contact detection elements such as photoelectric sensors or proximity switches, which have advantages such as fast response speed, high positioning accuracy, and long service life. The first limit sensing plate 135 is set as a light-shielding plate or a metal sensing plate according to the detection principle of the selected sensing component. Through this dual limit design combining soft and hard (i.e., combining the soft limit in the control program with the hard limit of the physical sensing component), precise position control can be achieved during normal operation, and physical safety protection can be provided in case of program abnormality or misoperation, effectively improving the safety and reliability of equipment operation. In addition, this limit and origin positioning structure is also applicable to the lifting power module 24 to achieve bidirectional stroke limit and origin return of the module mounting base 22 in the vertical direction, ensuring the safe and stable operation of the pressing activation mechanism 20.

[0038] In some examples, such as Figure 2 , Figure 4 and Figure 5 As shown, the lifting power module 24 includes a second lead screw 241, a lifting servo motor 242 that drives the second lead screw 241 to rotate, and a second lead screw 241 nut that is threaded into the second lead screw 241 and fixed to the module mounting base 22. The second lead screw 241 extends vertically. Thus, by using the combination of the lifting servo motor 242 and the lead screw, compared to traditional cylinder drive, precise control and high-speed response of the module mounting base 22 position can be achieved, providing the necessary execution accuracy for closed-loop pressure regulation.

[0039] It should be noted that in this example, the lifting servo motor 242, pressure sensor 23, and control system together constitute a high-precision closed-loop pressure control system. Specifically, when the pressure sensor 23 detects a deviation between the actual pressure value of the roller module 21 acting on the cell adhesive paper and the preset pressure value set on the touch screen, the control system calculates the displacement that needs to be compensated in real time based on the deviation and drives the lifting servo motor 242 to rotate accordingly in the forward or reverse direction. The rotational motion of the lifting servo motor 242 is precisely converted into a micron-level lifting motion of the module mounting base 22 in the vertical direction through the cooperation of the second lead screw 241 and the second lead screw 241 nut, thereby dynamically adjusting the downward pressure of the roller module 21. In this process, the second lead screw 241 preferably adopts a high-precision ball screw, which has high transmission efficiency and small backlash, ensuring that every pulse command of the lifting servo motor 242 can be accurately converted into a small displacement of the module mounting base 22, providing a core transmission guarantee for achieving constant pressure control. In contrast, the traditional cylinder-driven method is difficult to achieve high-precision position control and rapid dynamic response due to factors such as the compressibility of air and unstable friction. It cannot perform instantaneous and accurate position compensation based on real-time pressure feedback. This is the key technical significance of the servo motor and lead screw combination scheme adopted in this application.

[0040] In some examples, such as Figure 2 , Figure 4 and Figure 5 As shown, the lifting power module 24 also includes a module bracket 244, which includes two vertical guide rods 2441 and a horizontal connecting rod 2442. The two ends of the horizontal connecting rod 2442 are respectively fastened to the top ends of the two vertical guide rods 2441. The two ends of the module mounting base 22 are respectively slidably engaged with one of the vertical guide rods 2441 in the vertical direction. The lifting servo motor 242 is fixed to the bottom side of the horizontal connecting rod 2442, and the output shaft of the lifting servo motor 242 is fastened to a second lead screw 241 that passes through the horizontal connecting rod 2442, so as to drive the second lead screw to rotate coaxially. Thus, by setting two vertical guide rods 2441, a stable guide is provided for the lifting of the module mounting base 22, which can effectively counteract the lateral torque generated by the roller module 21 during rolling, ensuring the smoothness of the pressing process and the verticality of the pressure direction, and avoiding pressure deviation caused by uneven force.

[0041] It should be noted that the module support 244 in this example adopts a gantry structure design, with two vertical guide rods 2441 and a horizontal connecting rod 2442 forming a highly rigid gantry frame. This structural design has multiple technical advantages: First, the two vertical guide rods 2441 are symmetrically arranged at both ends of the module mounting base 22, so that the lifting and lowering movement of the module mounting base 22 forms a double-rail guiding structure. Compared with the single-sided guiding method, it can effectively constrain the rotational freedom of the module mounting base 22 in the horizontal plane and prevent it from deflecting or tilting during the lifting and lowering process. Secondly, when the roller module 21 rolls on the surface of the battery cell to be activated, the unevenness of the battery cell surface or the friction between the roller and the battery cell adhesive paper will generate lateral and torsional torques on the module mounting base 22. The gantry structure, through the coordinated constraint of the two vertical guide rods 2441, can evenly distribute these additional torques to the vertical guide rods 2441 on both sides, avoiding stress concentration, thereby ensuring that the module mounting base 22 always maintains a stable horizontal posture. Furthermore, the horizontal connecting rod 2442 rigidly connects the top ends of the two vertical guide rods 2441 to form a closed-loop structure, which significantly improves the overall rigidity and vibration resistance of the entire module bracket 244 and effectively suppresses vibrations caused by the start and stop of the lifting servo motor 242 or the rolling impact of the roller module 21. Further, to improve the accuracy and durability of the sliding fit, linear bearings or graphite bushings adapted to the vertical guide rods 2441 can be set at both ends of the module mounting base 22. Linear bearings employ rolling friction, characterized by sensitive movement, low coefficient of friction, and fast response, making them suitable for high-speed applications requiring frequent reciprocating lifting and lowering. Graphite bushings, on the other hand, utilize sliding friction and are inlaid with solid lubricant, offering excellent self-lubrication, high load-bearing capacity, and superior impact resistance, making them suitable for heavy-load or low-speed applications. Those skilled in the art can flexibly select appropriate sliding fit components based on the specific speed, load, and accuracy requirements of the actual application to meet the activation process needs of different battery cell specifications.

[0042] In some examples, such as Figure 2 , Figure 4 and Figure 5As shown, the lifting power module 24 also includes a second limit sensor 245, an upper stroke sensor component 246, a third limit sensor 247, and a lower stroke sensor component 248. The top ends of the second limit sensor 245 and the third limit sensor 247 are both securely connected to the bottom side of the horizontal connecting rod 2442, and the second limit sensor 245 and the third limit sensor 247 are located on opposite sides of the lifting servo motor 242. The upper stroke sensor component 246 and the lower stroke sensor component 248 are respectively secured to the back side of the module mounting base 22. The upper stroke sensor component 246 is positioned at the maximum stroke position of the lifting power module 24 in the upward direction to cooperate with the second limit sensor 245 in limiting the maximum upward stroke of the module mounting base 22. The lower stroke sensor component 248 is positioned at the maximum stroke position of the lifting power module 24 in the downward direction to cooperate with the third limit sensor 247 in limiting the maximum downward stroke of the module mounting base 22. Thus, similar to the translation module, this limiting structure provides hardware-level bidirectional overtravel protection for the lifting power module 24, ensuring the safety of the equipment under abnormal conditions.

[0043] It should be noted that the limit structure in this example adopts a non-contact detection method using a sensor plate and a sensor component. Compared with traditional mechanical limit switches, it has significant advantages such as fast response speed, no mechanical wear, and high repeatability. Specifically, the second limit sensor plate 245 and the third limit sensor plate 247 serve as fixed detection references, with their top ends firmly connected to the bottom side of the horizontal connecting rod 2442, ensuring the high stability of the reference position during long-term use. The upper travel sensor component 246 and the lower travel sensor component 248 move synchronously up and down with the module mounting base 22. When the module mounting base 22 rises or falls to the preset safety limit position, the corresponding travel sensor component and the fixed sensor plate generate a sensing signal. The control system immediately identifies the overtravel risk and issues a stop command, while triggering an alarm mechanism to effectively prevent the module mounting base 22 from overtraveling due to abnormal control signals, servo motor malfunction, or program errors.

[0044] It is worth emphasizing that the limiting structure in this example implements a dual safety protection mechanism combining "software and hardware." The "soft limit" refers to the software travel boundary set internally by the control system based on encoder feedback. During normal operation, it acts as the first line of defense; when the module mounting base 22 approaches the software-set limit position, the control system actively decelerates and stops. The "hard limit" refers to the physical limiting system composed of the sensing plate and sensing components in this example. When the soft limit fails due to program abnormalities, signal interference, or other reasons, the hard limit acts as the last safety barrier. It can independently cut off the power supply to the servo motor, forcibly stopping the movement of the module mounting base 22, thereby preventing equipment damage and safety accidents. This dual protection design significantly improves the safety level of equipment operation.

[0045] Furthermore, to ensure the reliability and anti-interference capability of the limit system, the upper travel sensing component 246 and the lower travel sensing component 248 preferably employ photoelectric sensors or inductive proximity switches. Photoelectric sensors detect movement by switching on and off the optical path, featuring fast response speed, adjustable detection distance, and immunity to electromagnetic interference, making them suitable for applications requiring high response speed. Inductive proximity switches, on the other hand, are triggered by detecting changes in the electromagnetic field caused by the proximity of a metal sensing element, offering advantages such as resistance to oil and dust, and strong environmental adaptability, making them suitable for harsh working environments. Those skilled in the art can flexibly select the appropriate sensing component type based on factors such as the cleanliness and electromagnetic interference level of the actual working environment. The materials of the second limit sensing element 245 and the third limit sensing element 247 should be determined according to the detection principle of the selected sensing components. For example, when using a photoelectric sensor, the sensing element can be set as a light-shielding sheet; when using an inductive proximity switch, the sensing element should be set as a metal sensing element.

[0046] In some examples, such as Figure 2 , Figure 4 and Figure 5 As shown, the roller module 21 includes a roller mounting bracket 211 and a rubber-coated roller 212 rotatably mounted on the bottom side of the roller mounting bracket 211. The top side of the roller mounting bracket 211 is vertically elastically connected to the module mounting base 22 via an elastic element 25. Thus, a floating connection structure is formed between the roller module 21 and the module mounting base 22. When the rubber-coated roller 212 rolls on the surface of the cell to be activated, it can automatically compensate for vertical movement according to the undulations of the cell surface, ensuring that the rubber-coated roller 212 always maintains close contact with the cell adhesive paper. This provides a reliable front-end execution basis for the accurate feedback of the pressure sensor 23 and the closed-loop adjustment of the lifting power module 24.

[0047] It should be noted that, in this example, the module mounting base 22 can be specifically configured as a vertically extending flat plate structure, with a horizontal protrusion (not shown in the figure) protruding from the top of the plate facing the roller module 21. The horizontal protrusion is integrally formed with the module mounting base 22 or fixedly connected by fasteners. The top side of the roller mounting bracket 211 is elastically connected to the horizontal protrusion in the vertical direction through an elastic element 25. In this way, by setting the horizontal protrusion as a mounting support for the elastic element 25, a stable vertical guiding reference can be provided for the elastic element 25, and the cantilever length of the elastic element 25 can be effectively shortened, reducing the impact of the bending moment generated by lateral force on the pressure detection accuracy. At the same time, the vertically flat plate structure of the module mounting base 22 has high bending stiffness, which can provide a stable support foundation for the entire downward activation mechanism 20, ensuring that the transmission path of the downward pressure remains vertically stable under the drive of the lifting power module 24. Furthermore, the side surface of the module mounting bracket facing the roller module 21 is also provided with parallel double vertical guide rails (not shown in the figure) and double vertical sliders that slide in cooperation with each vertical guide rail. The roller mounting bracket 211 is slidably connected to the double vertical guide rails through the double vertical sliders. In this way, the cooperation of the double vertical guide rails and the double vertical sliders can effectively disperse the lateral torque generated by the roller module 21 during rolling pressure, prevent the roller mounting bracket 211 from deflecting or tilting, and ensure that the rubber-coated roller 212 always rolls and applies pressure in an attitude perpendicular to the surface of the battery cell, further ensuring the consistency of the direction and uniformity of the activation pressure.

[0048] Furthermore, the elastic element 25 in this example is one of the core keys to achieving constant pressure control. Specifically, the elastic element 25 is compressed and disposed between the roller mounting bracket 211 and the module mounting base 22. The elastic force it generates and the pressure exerted by the rubber-coated roller 212 on the cell adhesive paper constitute an action-reaction relationship. When the rubber-coated roller 212 rolls on the cell surface, if it encounters a protruding part of the cell surface, the roller mounting bracket 211 is pushed upward, further compressing the elastic element 25. The compression of the elastic element 25 increases, and its elastic force acting on the module mounting base 22 increases accordingly. This increased elastic force is monitored in real time by the pressure sensor 23 and fed back to the control system. If it encounters a concave part of the cell surface, the compressed elastic element 25 releases part of its compression, pushing the roller mounting bracket 211 downward. The compression of the elastic element 25 decreases, and its elastic force acting on the module mounting base 22 decreases accordingly. The pressure sensor 23 can also accurately capture this change. It is through the change in compression of the elastic element 25 that the displacement change caused by the unevenness of the battery cell surface is linearly converted into a pressure change, enabling the pressure sensor 23 to sense the actual contact pressure between the rubber-coated roller 212 and the battery cell adhesive paper in real time and accurately. Therefore, the selection of the elastic element 25 has a decisive impact on the accuracy and stability of pressure control.

[0049] In some examples, the elastic element 25 can specifically be a rectangular spring, which has the following significant advantages over ordinary round wire springs: First, the rectangular spring has a rectangular wire cross-section, providing greater elastic force and higher stiffness within the same spatial dimensions, making it suitable for applications requiring higher working pressure and with limited installation space; second, the force characteristics of a rectangular spring are more linear, maintaining a good linear relationship between elastic force and compression within the effective compression stroke, which facilitates the calibration of the pressure sensor 23 and the design of closed-loop control algorithms; third, rectangular springs have better fatigue resistance and a longer service life, meeting the reliability requirements of long-term continuous operation of the battery cell adhesive activation equipment. Of course, those skilled in the art can also select other types of elastic elements 25, such as disc springs, rubber springs, or gas springs, according to the specific requirements of parameters such as working pressure, spatial dimensions, and response speed in actual applications.

[0050] To ensure the consistency of the elastic element 25's orientation during compression and release, and to prevent data distortion caused by the elastic element 25's skewing or twisting, a guide structure is provided between the roller mounting bracket 211 and the module mounting base 22. In some examples, the guide structure includes a guide pin fixed to the top side of the roller mounting bracket 211 and a corresponding guide hole on the bottom side of the module mounting base 22. The elastic element 25 is sleeved on the guide pin, and the guide pin and guide hole form a clearance fit. This guide structure ensures that the elastic element 25 always extends and retracts vertically during compression and release, avoiding the generation of horizontal force components, thereby ensuring that the force data collected by the pressure sensor 23 accurately reflects the downward pressure in the vertical direction. In other examples, the guide structure can also adopt a combination of guide bolts and bushings. The guide bolt passes through the module mounting base 22 and is fastened to the roller mounting bracket 211. The elastic element 25 is sleeved on the guide bolt, and the guide bolt and bushing on the module mounting base 22 form a sliding fit, which can also achieve precise vertical guidance.

[0051] Furthermore, the aforementioned rubber-coated roller 212, as the actuator that directly contacts the battery cell adhesive paper, is also crucial to the activation effect due to its material and surface treatment. The rubber-coated roller 212 is typically made by coating the surface of a metal core shaft with elastic materials such as polyurethane, silicone, or nitrile rubber. These materials have good elasticity and wear resistance, enabling them to form a uniform contact surface with the battery cell adhesive paper during pressure application, preventing damage to the battery cell or adhesive paper due to excessive local pressure. Simultaneously, the outer surface of the rubber-coated roller 212 can be configured with different hardness levels according to process requirements. For example, a softer coating layer can be used for highly adhesive paper to increase the contact area and evenly distribute pressure; a harder coating layer can be used for adhesive paper requiring higher activation pressure to ensure effective pressure transmission. A bearing structure is typically provided between the roller mounting bracket 211 and the rubber-coated roller 212 to ensure that the rubber-coated roller 212 can rotate freely with extremely low rolling resistance, preventing scratches or tensile deformation of the battery cell adhesive paper surface due to uneven rolling.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A battery cell adhesive tape activation device, characterized in that, The battery cell adhesive activation device includes a feeding mechanism and a pressing activation mechanism. The device also includes loading and unloading stations, a first pressing station, and a second pressing station. The feeding mechanism includes a cell carrier, a carrier platform for supporting and positioning the cell carrier, and a translational force module for driving the carrier platform to switch between the loading / unloading station and the first pressing station. The cell carrier is configured to support and position the cell to be activated. The translational force module is also configured to drive the carrier platform to move back and forth between the first pressing station and the second pressing station in a preset manner when the pressing activation mechanism presses down. The pressure activation mechanism includes a roller module, a module mounting base, a pressure sensor, and a lifting power module for driving the module mounting base to rise and fall. The top side of the roller module is elastically mounted on the module mounting base in the vertical direction. The pressure sensor is installed between the top side of the roller module and the module mounting base to monitor the pressure value fed back by the roller module in real time when the roller module is pressed down. The lifting power module is also configured to adjust the position of the module mounting base according to the pressure value fed back by the pressure sensor, so as to adjust the downward pressure of the roller module on the cell adhesive paper of the cell to be activated, so as to keep the downward pressure value constant.

2. The cell adhesive tape activation device according to claim 1, characterized in that, The battery cell carrier includes a carrier body and a battery cell positioning groove recessed on the upper surface of the carrier body. The battery cell positioning groove is configured to lock and fix the battery cell to be activated.

3. The cell adhesive tape activation device according to claim 1, characterized in that, The battery cell carrier can be detachably mounted on the upper surface of the carrier platform via a snap-fit ​​structure or a screw structure.

4. The cell adhesive tape activation device according to claim 1, characterized in that, The translational power module includes a first lead screw, a translational servo motor that drives the first lead screw to rotate, and a first lead screw nut that is threadedly engaged with the first lead screw and fixed to the carrier bearing platform. The first lead screw extends along the arrangement direction between the loading / unloading station, the first pressing station, and the second pressing station.

5. The cell adhesive tape activation device according to claim 4, characterized in that, The translational power module also includes a synchronous belt drive assembly. The output shaft of the translational servo motor is connected to the first lead screw via the synchronous belt drive assembly to drive the first lead screw to rotate.

6. The cell adhesive tape activation device according to claim 4, characterized in that, The translational power module further includes a first limit sensor, a first stroke sensor component, a second stroke sensor component, and an origin limit sensor component. The first limit sensor is fastened to the first lead screw nut. The first stroke sensor component is set at the maximum stroke position of the translational power module on one side of the movement direction. The second stroke sensor component is set at the maximum stroke position of the translational power module on the other side of the movement direction. The origin limit sensor component is set at the origin position of the translational power module. The first stroke sensor component, the second stroke sensor component, and the origin limit sensor component are respectively configured to cooperate with the first limit sensor to limit the maximum movement stroke of the vehicle carrying platform and determine the origin position.

7. The cell adhesive tape activation device according to claim 1, characterized in that, The lifting power module includes a second lead screw, a lifting servo motor that drives the second lead screw to rotate, and a second lead screw nut that is threadedly engaged with the second lead screw and fixed to the module mounting base. The second lead screw extends vertically.

8. The cell adhesive tape activation device according to claim 7, characterized in that, The lifting power module also includes a module bracket, which includes two vertical guide rods and a horizontal connecting rod. The two ends of the horizontal connecting rod are respectively fastened to the top ends of the two vertical guide rods. The two ends of the module mounting base are respectively slidably engaged with one of the vertical guide rods in the vertical direction. The lifting servo motor is fixed to the bottom side of the horizontal connecting rod, and the output shaft of the lifting servo motor is fastened to the second lead screw that passes through the horizontal connecting rod, so as to drive the second lead screw to rotate coaxially.

9. The cell adhesive tape activation device according to claim 8, characterized in that, The lifting power module also includes a second limit sensor, an upper stroke sensor component, a third limit sensor, and a lower stroke sensor component; The top ends of the second limiting sensor and the third limiting sensor are both fastened to the bottom side of the horizontal connecting rod, and the second limiting sensor and the third limiting sensor are respectively located on two opposite sides of the lifting servo motor. The upper stroke sensing component and the lower stroke sensing component are respectively fastened to the back side of the module mounting base. The upper stroke sensing component is set at the maximum stroke position of the lifting power module in the upward direction to cooperate with the second limit sensing piece to limit the maximum upward stroke of the module mounting base. The lower stroke sensing component is set at the maximum stroke position of the lifting power module in the downward direction to cooperate with the third limit sensing piece to limit the maximum downward stroke of the module mounting base.

10. The cell adhesive tape activation device according to any one of claims 1-9, characterized in that, The roller module includes a roller mounting frame and a rubber-coated roller rotatably mounted on the bottom side of the roller mounting frame. The top side of the roller mounting frame is elastically connected to the module mounting base in the vertical direction through an elastic element.

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