Automatic cutting, folding, ironing and forming all-in-one machine for TOPCon battery piece

Abstract

The invention relates to the field of solar photovoltaic cell manufacturing, in particular to an automatic cutting, folding, ironing and forming all-in-one machine for a TOPCon cell. According to the equipment, through the integrated multi-station structural design, automatic continuous treatment of multiple procedures of accurate cutting, folding, edge ironing, code spraying, glue dispensing, hot and cold pressing, detection and sorting and the like of the battery piece is achieved, and therefore efficient forming of the TOPCon battery piece and automatic detection of the packaging quality are achieved. According to the all-in-one machine, the multiple sets of transferring assemblies and the intelligent control unit are adopted for cooperative operation, accurate transferring and synchronous machining of the battery pieces among different process stations can be achieved, the production efficiency and consistency are remarkably improved, deviation and defects caused by manual intervention are effectively reduced, and the product yield is increased. According to the integrated design, the production takt, the forming precision, the packaging compactness and the detection accuracy are remarkably improved, the equipment occupied area and the energy consumption can be reduced under the same productivity condition, and the high automation level and the high industrial popularization value are achieved.

Description

Technical Field

[0001] This application belongs to the field of solar photovoltaic cell manufacturing technology, specifically relating to an integrated machine for TOPCon cell automated cutting, folding, and hot stamping. Background Technology

[0002] In recent years, TOPCon cells have been considered one of the next-generation mainstream high-efficiency battery technologies due to their excellent conversion efficiency and superior temperature stability. However, the manufacturing process of TOPCon cells requires extremely high precision in materials, structure, and processes, especially in cell forming, edge encapsulation, surface coding, dispensing, and inspection and sorting. Extremely high mechanical precision and process consistency are required to ensure the stability and reliability of the final modules.

[0003] Traditional TOPCon solar cell processing production lines typically employ multiple independent machines connected in series. Material transfer between processes relies on manual labor or independent robotic arms, leading to asynchronous production cycles and issues such as cell cracking, warping, and poor sealing caused by positioning errors, improper clamping, or temperature control deviations. Furthermore, some equipment fails to achieve uniform control during heating and cooling, resulting in uneven heating of the cells and affecting the integrity of the surface passivation layer and encapsulation materials. Insufficient positioning accuracy in the coding and dispensing processes often results in defects such as misalignment, missing prints, or uneven dispensing, severely hindering the consistency of the finished product.

[0004] Therefore, there is an urgent need for an intelligent device that can automatically connect multiple processes to reduce manual intervention in intermediate links and improve production cycle time and yield. Summary of the Invention

[0005] One objective of this application is to provide an integrated device capable of automating and continuously processing multiple processes, including cutting, folding, hot pressing, coding, dispensing, hot pressing, cold pressing, inspection, and sorting. By integrating multiple process function modules onto the same working platform, and cooperating with multiple sets of high-precision transfer components and an intelligent control system, the device enables automatic switching and synchronous operation of battery cells during transmission, positioning, and processing, thereby effectively eliminating the problems of uncoordinated cycle times and error accumulation caused by independent operation of the equipment.

[0006] To achieve the above objectives, the first aspect of this application provides an automated cutting, folding, and heat-forming integrated machine for TOPCon solar cells. The integrated machine includes a working platform, multiple process units arranged sequentially on the working platform along the solar cell transport direction, multiple transfer components, and a control unit electrically connected to the multiple process units and the multiple transfer components respectively. The process units are connected through multiple transfer components to realize the automatic transfer of solar cells between the various process units. The process unit includes a cutting and forming process unit, a coding and dispensing process unit, a hot and cold pressing process unit, and an inspection and sorting process unit; the coding and dispensing process unit includes a coding mechanism for printing identification codes and a dispensing mechanism for dispensing adhesive on the folded edge area; the coding mechanism includes a coding component, a positioning bracket, a coding support, and a lateral movement component. The transfer assembly includes a first clamp transfer assembly, a second clamp transfer assembly, a first transfer assembly, and a second transfer assembly.

[0007] According to a specific embodiment of this application, the cutting and forming process unit sequentially includes: a precision cutting mechanism, which is used to precisely cut off the excess air pockets of the battery cell; a first-fold rolling mechanism, which adopts a roller structure and is used to perform the first folding and forming of the edge of the battery cell; and a first-fold edge-heating mechanism, which includes a heating component and a cylinder driving component, and is used to heat and shape the battery cell after the first folding and forming. The hot and cold pressing process unit includes, in sequence: a two-fold edge-pressing mechanism, which includes a double heating block and a driving assembly, for hot pressing and shaping the second fold; and a side cold pressing mechanism, which includes a double cold pressing block and a driving assembly, for cooling and curing after hot pressing. The inspection and sorting process unit sequentially includes: a body pressing mechanism, which applies adjustable pressure to the battery cell body to flatten the surface; a thickness measuring mechanism, which includes a battery platform and a thickness measuring component, for detecting the thickness of the battery cell and outputting a measurement signal; a weighing mechanism, which is equipped with a limit component and is used to weigh the battery cell; a CCD inspection mechanism, which is used to inspect the appearance, coding, and packaging quality of the battery cell; a positioning mechanism, which is used to accurately position the battery cell before unloading; and an unloading mechanism, which includes a robotic arm and an NG conveyor belt. The robotic arm is installed in the positioning mechanism to achieve automatic separation of good and defective products.

[0008] According to a specific embodiment of this application, the precision cutting mechanism includes two cutting components symmetrically arranged along the axial direction of the working platform. The cutting components are respectively arranged on both sides of the battery cell moving path. Each cutting component is provided with a driving tool component and a cutting blade group. The cutting blade group includes an upper cutting blade and a lower cutting blade. The driving tool component is used to drive the cutting blade group to precisely cut the battery cell packaging edge. The first-folding edge-heating mechanism includes two edge-heating components symmetrically arranged along the axial direction of the working platform. The edge-heating components are respectively arranged on both sides of the moving path of the battery cell. The edge-heating component includes a heating group and a driving component. The heating group includes an upper heating block and a lower heating block. The driving component is used to drive the heating group to move up and down in the vertical direction so that the heating group is in contact with the first folding area of ​​the battery cell. According to a specific embodiment of this application, the lateral moving component includes a moving platform and a translation guide rail disposed at the bottom of the moving platform; the lateral moving component includes a moving platform and a translation guide rail disposed at the bottom of the moving platform, the translation guide rail is arranged perpendicular to the battery cell conveying direction, the moving platform can reciprocate on the translation guide rail, and the positioning bracket and the coding bracket are respectively disposed at both ends of the moving platform. The coding assembly is disposed on one side of the translation guide rail and above the coding bracket. The coding assembly includes a coding header and a delay sensor, with the delay sensor disposed in front of the coding header.

[0009] According to a specific embodiment of this application, the positioning bracket includes a bottom positioning block, a side fixing block, and a top positioning block. The tab on the top of the battery cell is attached to the surface of the top positioning block to achieve positioning of the battery cell on the positioning bracket. The bottom positioning block is movably disposed at the bottom of the battery cell. The side fixing block is disposed on one side of the battery cell. Both the positioning bracket and the inkjet printer bracket are equipped with a fixing device in the middle, which is used to fix the battery cell on the moving platform; both sides of the fixing device are provided with sliding channels to realize the 180° rotation and transfer of the battery cell.

[0010] According to a specific embodiment of this application, the positioning bracket includes a bottom positioning block, a side fixing block, and a top positioning block; the dispensing mechanism includes a fixing component, a dispensing component, and a turntable; the fixing component is fixedly mounted on the turntable, thereby enabling the fixing component to rotate 180° through the turntable; the dispensing component is disposed on one side of the fixing component. The fixing assembly includes a liftable fixing frame, a positioning frame, a positioning component, and a secondary folding component. The positioning frame is disposed inside the fixing frame and is used to cooperate with the fixing frame to fix and position the battery cell. The positioning component includes positioning blocks that are movably disposed on both sides of the positioning frame and a bottom alignment block disposed at the bottom of the battery cell. The dispensing assembly includes a nozzle and a driving device, the driving device being used to drive the nozzle to dispense adhesive onto the side of the battery cell. The secondary folding assembly includes folding blocks respectively disposed below the positioning block, and the folding blocks are used to realize the secondary folding of the battery cell.

[0011] According to a specific embodiment of this application, the thickness measuring component includes a thickness measuring platform, a clamping table, and a thickness measuring member; a thickness measuring positioning block is also provided at the bottom of the thickness measuring platform; the clamping table and the thickness measuring member are located directly above the thickness measuring platform, and the clamping table and the thickness measuring member are telescopically connected. The thickness measuring component includes multiple sensors and sensing blocks, with the sensing blocks disposed on the pressing platform and positioned opposite to the sensors.

[0012] According to a specific embodiment of this application, the first clamping transfer assembly is disposed on one side of the cutting and forming process unit, and is used to realize the process switching of the battery cell in the cutting and forming process unit; the second clamping transfer assembly is disposed between the inkjet printing and dispensing process unit and the hot and cold pressing process unit, and is used to transfer the battery cell that has completed the inkjet printing and dispensing process and complete the hot and cold pressing; the first transfer assembly is disposed on one side of the inkjet printing and dispensing process unit, and is used to realize the switching of the various mechanisms of the battery cell between the inkjet printing and dispensing process units; the second transfer assembly is disposed on one side of the detection and sorting process unit, and is used to realize the switching of the various mechanisms of the battery cell between the detection and sorting process units. Both the first clamping transfer assembly and the second clamping transfer assembly include a liftable clamping block and a platform; the platform is disposed within the clamping block and the battery cell is placed on the platform; a positioning assembly and a positioning drive mechanism connected to the positioning assembly are also provided on one side of the first clamping transfer assembly, the positioning assembly including clamping blocks and positioning cones respectively disposed on both sides of the platform; the positioning cones are disposed below the clamping blocks.

[0013] According to a specific embodiment of this application, the first transfer assembly includes a first driving device, a first robotic arm assembly and a rotating component disposed on the surface of the first driving device and movable on the surface of the first driving device; the first robotic arm assembly includes a first robotic arm and a second robotic arm, the first robotic arm and the second robotic arm are respectively disposed at both ends of the first driving device, the rotating component is disposed between the first robotic arm and the second robotic arm, the rotating component is disposed on one side of the positioning bracket, and the output end of the rotating component is provided with two grippers for realizing 180° rotation of the battery cell; The first robotic arm is provided with a suction cup at its end; the second robotic arm includes two suction cups respectively provided at both ends of the second robotic arm; The first drive device is provided with a first transverse guide rail at its bottom. The first drive device can move on the first transverse guide rail to drive the first robotic arm assembly and the rotating component to move back and forth.

[0014] According to a specific embodiment of this application, the second transfer assembly includes a second driving device and a second robotic arm assembly disposed on the surface of the second driving device and capable of moving on the surface of the second driving device; the second robotic arm assembly includes a third robotic arm, a fourth robotic arm and a fifth robotic arm. The third and fifth robotic arms each include two suction cups respectively disposed at both ends; the fourth robotic arm includes a suction cup disposed at the end of the fourth robotic arm; The second drive device is provided with a second transverse guide rail at its bottom. The second drive device can move on the second transverse guide rail to drive the second robotic arm assembly to move back and forth.

[0015] Compared with the prior art, the above-described solutions of this application have at least the following beneficial effects: (1) This application integrates multiple precision process units and high-precision transfer components on a unified working platform to realize the full-process automation of TOPCon battery cells from cutting, folding, hot stamping, coding, dispensing to hot and cold pressing, inspection and sorting, which has made significant progress in production efficiency and processing consistency. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an automated cutting, folding, and heat-forming integrated machine for TOPCon battery cells according to this application; Figure 2 This is a schematic diagram of the structure of the first clamping and transfer assembly in the TOPCon battery cell automated cutting, bending and heat forming integrated machine of this application; Figure 3 This is a cross-sectional view of a precision cutting mechanism used in a TOPCon automated cutting, folding, and heat-forming integrated machine for battery cells according to this application; Figure 4 This is a cross-sectional view of a single-fold rolling mechanism used in an automated cutting, folding, and heat-forming integrated machine for TOPCon battery cells according to this application; Figure 5 This is a cross-sectional view of a folding and heat-pressing mechanism used in an automated cutting, folding, and heat-pressing integrated machine for TOPCon battery cells according to this application; Figure 6 This is a schematic diagram of the inkjet printing mechanism used in the TOPCon battery cell automated cutting, folding and heat-forming integrated machine according to this application; Figure 7 for Figure 6 A magnified view of a portion of the image; Figure 8 This is a side view of a dispensing mechanism used in an automated cutting, folding, and heat-forming machine for TOPCon battery cells according to this application; Figure 9 for Figure 8 A magnified view of a portion of the image; Figure 10 This is a schematic diagram of the thickness measuring mechanism used in the TOPCon battery cell automated cutting, bending and heat forming integrated machine according to this application; Figure 11 This is a schematic diagram of the structure of the first transfer component in the TOPCon battery cell automated cutting, bending and heat forming integrated machine of this application; Figure 12 This is a schematic diagram of the structure of a second transfer component in a TOPCon automated cutting, folding, and heat-forming machine for battery cells, as described in this application.

[0017] Explanation of reference numerals in the attached figures: 1. Working platform; 2. First clamping and transfer assembly; 3. Precision cutting mechanism; 4. Single-fold rolling mechanism; 5. Single-fold hot-pressing mechanism; 6. Inkjet coding mechanism; 7. First transfer assembly; 8. Glue dispensing mechanism; 9. Second clamping and transfer assembly; 10. Double-fold hot-pressing mechanism; 11. Side cold pressing mechanism; 12. Body pressing mechanism; 13. Second transfer assembly; 14. Thickness measuring mechanism; 15. Weighing mechanism; 16. CCD detection mechanism; 17. Positioning mechanism; 18. Unloading mechanism; 19. Clamping block; 20. Battery cell; 21. Platform; 22. Clamping block; 23. Positioning cone; 24. Positioning drive mechanism; 25. Cutting assembly; 26. Upper cutter; 27. Lower cutter; 28. Precision cutting drive mechanism; 29. ​​Roller; 30. Heating group; 31. Drive assembly; 32. Inkjet coding assembly; 33. Lateral movement assembly; 34. Flat 35. Moving guide rail; 36. Moving stage; 37. Inkjet printer bracket; 38. Positioning bracket; 39. Top positioning block; 40. Bottom positioning block; 41. Side fixing block; 42. Fixing device; 43. Sliding channel; 44. Dispensing assembly; 45. Fixing assembly; 46. Turntable; 47. Fixing frame; 48. Positioning frame; 49. Positioning block; 50. Secondary folding assembly; 51. Nozzle; 52. Bottom alignment block; 53. Thickness measuring platform; 54. Pressing table; 55. Thickness measuring component; 56. Sensor; 57. Sensing block; 58. First drive device; 59. First robotic arm; 60. Rotating component; 61. Second robotic arm; 62. Gripper; 63. Suction cup; 64. First transverse guide rail; 65. Third robotic arm; 66. Second transverse guide rail; 67. Fourth robotic arm; 68. Fifth robotic arm; 69. Second drive device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments 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.

[0019] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the article or device that includes said element.

[0020] This application proposes an integrated machine for automated cutting, folding, and hot-pressing of TOPCon solar cells. It addresses key technical bottlenecks in the existing TOPCon solar cell production process, such as independent multi-process operations, poor coordination, excessive manual intervention, poor equipment compatibility, and low yield. It provides a highly integrated, fully automated, and intelligent control system solution.

[0021] Traditional TOPCon solar cell processing production lines typically employ a distributed structure, where multiple different machines independently complete processes such as cutting, folding, dispensing, edge pressing, hot pressing, cold pressing, inspection, and sorting. This segmented production method has significant limitations. First, as a highly brittle silicon-based material, solar cells are prone to mechanical stress concentration during repeated transfer and repositioning, leading to problems such as cracking, warping, or edge chipping, directly affecting the subsequent encapsulation quality. Second, the independent operation of the control system under multi-machine collaboration makes it difficult to coordinate temperature, pressure, speed, and time parameters in real time for each stage, resulting in defects such as uneven hot pressing, dispensing deviations, or inconsistent edge folding, leading to poor product consistency. Third, due to incompatible transmission interfaces among the various machines, manual intervention is required for cell handling and intermediate transfer, significantly increasing labor intensity and reducing production cycle time and efficiency.

[0022] To address the aforementioned issues, this application addresses the problem by deploying multiple process units and transfer components on a unified working platform and achieving full-process collaborative control through a central control unit. This fundamentally eliminates the system fragmentation and information gaps inherent in traditional distributed equipment, thus realizing truly automated and continuous processing.

[0023] Example 1 The following is in conjunction with the appendix Figure 1-12 Detailed description of optional embodiments of this application: like Figure 1 As shown, this embodiment provides an automated cutting, folding, and heat-forming integrated machine for TOPCon battery cells. Its overall structure includes a working platform 1, multiple process units arranged sequentially along the transmission direction of the battery cells 20, multiple transfer components, and a control unit electrically connected to each process unit and each transfer component. Through the precise cooperation between the units, the battery cells 20 are fully automated throughout the entire process of forming, coding, dispensing, hot and cold pressing, inspection, and unloading, achieving the technical goals of high precision, high efficiency, and high consistency.

[0024] Example 2 Based on Example 1, such as Figure 1 and Figure 3-5 As shown, this embodiment further defines the cutting and forming process unit, hot and cold pressing process unit, and inspection and sorting process unit in the TOPCon battery cell automated cutting, folding and hot forming integrated machine of Embodiment 1.

[0025] like Figure 1 As shown, the cutting and forming process unit includes, in sequence: a precision cutting mechanism 3, a single-fold rolling mechanism 4, and a single-fold edge pressing mechanism 5; The hot and cold pressing process unit includes, in sequence, a two-fold edge pressing mechanism 10 and a side cold pressing mechanism 11; The inspection and sorting process unit includes, in sequence: a body pressurization mechanism 12, a thickness measuring mechanism 14, a weighing mechanism 15, a CCD inspection machine 16, a positioning mechanism 17, and a feeding mechanism 18.

[0026] As an optional implementation, the process unit is composed of multiple transfer components connected throughout, used to realize the automatic transfer and process switching of the battery cells 20 between various process units, thereby enabling the entire production line to maintain continuous, smooth and efficient operation. The process unit sequentially includes a cutting and forming process unit, a coding and dispensing process unit, a hot and cold pressing process unit, and an inspection and sorting process unit, all of which are installed on the work platform 1.

[0027] like Figure 1 As shown, as an optional implementation, the cutting and forming process unit includes a precision cutting mechanism 3, a single-fold rolling mechanism 4, and a single-fold edge pressing mechanism 5.

[0028] like Figure 3 As shown, as an optional implementation, the precision cutting mechanism 3 is used to precisely cut the excess air pockets at the edge of the battery cell 20 packaging to ensure consistent forming dimensions.

[0029] like Figure 3As shown, as an optional implementation, the precision cutting mechanism 3 includes two sets of cutting components 25 disposed on both sides of the working platform 1. The two sets of cutting components 25 are symmetrically arranged along the platform axis and are respectively disposed on both sides of the moving path of the battery cell 20. Each cutting component 25 includes a driving tool component and a cutting blade assembly.

[0030] like Figure 3 As shown, as an optional implementation, the cutting blade assembly consists of an upper cutting blade 26 and a lower cutting blade 27. The precision cutting drive mechanism 28 drives the upper cutting blade 26 and the lower cutting blade 27 to move towards each other in the vertical direction, thereby achieving precise cutting of the packaging edge of the battery cell 20.

[0031] As an optional implementation, the cut battery cell 20 is first folded and formed by a folding and rolling mechanism 4.

[0032] like Figure 4 As shown, as an optional implementation, the folding and rolling mechanism 4 consists of multiple rollers 29. The rollers 29 contact the folded edge of the battery cell 20. Through the continuous pressing of the rollers 29, the edge of the battery cell 20 forms a uniform 180° fold, providing a basic shape for the subsequent hot-stamping process.

[0033] As an optional implementation, the folding and heating mechanism 5 is used to heat and shape the battery cell 20 after the first folding, ensuring the flatness and structural stability of the folded area.

[0034] like Figure 5 As shown, as an optional implementation, a folding and heating mechanism 5 is symmetrically arranged on both sides of the working platform 1. Each side includes a heating group 30 and a driving component 31. The heating group 30 consists of an upper heating block and a lower heating block. The driving component 31 drives the heating group 30 to rise and fall in the vertical direction, so that the heating block and the first folding area of ​​the battery cell 20 are in contact and kept uniformly heated, thereby achieving sufficient heat setting of the folded edge.

[0035] Example 3 Based on Example 1, such as Figure 1-2 As shown, this embodiment further defines the inkjet printing mechanism in the TOPCon battery cell automated cutting, folding and heat forming integrated machine of embodiment 1.

[0036] like Figure 6-7 As shown, the coding mechanism includes a coding component 32, a positioning bracket 37, a coding bracket 36, and a lateral movement component 33.

[0037] As an optional implementation, the battery cell 20 is transferred to the inkjet printing and dispensing process unit via the first clamping transfer assembly 2.

[0038] like Figure 6 and Figure 7As shown, as an optional implementation, the inkjet printing and dispensing process unit includes an inkjet printing mechanism 6 and a dispensing mechanism 8.

[0039] As an optional implementation, the coding mechanism 6 includes a coding component 32, a positioning bracket 37, a coding bracket 36, and a lateral movement component 33.

[0040] As an optional implementation, the lateral movement component 33 includes a moving stage 35 and a translation guide rail 34 disposed at the bottom of the moving stage 35. The translation guide rail 34 is arranged along a direction perpendicular to the transmission direction of the battery cell 20. The moving stage 35 can reciprocate along the translation guide rail 34 to achieve uniform scanning of the spray nozzle in the width direction of the battery cell 20.

[0041] As an optional implementation, the coding assembly 32 is disposed on one side of the translation guide rail 34 and above the coding bracket 36. The coding assembly 32 includes a printing pad and a delay sensor. The delay sensor is used to detect the time point when the battery cell 20 enters the printing area to ensure printing synchronization accuracy.

[0042] As an optional implementation, the positioning bracket 37 includes a bottom positioning block 39, a side fixing block 40 and a top positioning block 38. The top tab of the battery cell 20 is attached to the top positioning block 38 to achieve positioning of the battery cell.

[0043] As an optional implementation, the bottom positioning block 39 is movably disposed below the battery cell 20, and the side fixing block 40 is used to limit the lateral position of the battery cell 20.

[0044] As an optional implementation, both the positioning bracket 37 and the inkjet bracket 36 are provided with a fixing device 41 in the middle, which is used to firmly fix the battery cell 20 on the moving table 35 during the inkjet printing process. The fixing device 41 is provided with sliding channels 42 on both sides, and the battery cell 20 can be rotated and transferred 180 degrees in this channel by means of the rotating mechanism 59.

[0045] As an optional implementation, the dispensing mechanism 8 is located behind the coding mechanism 6 and is used to automatically dispense adhesive in the first folded area to enhance the sealing performance of the package.

[0046] like Figure 8 and Figure 9 As shown, as an optional implementation, the dispensing mechanism 8 includes a fixing component 44, a dispensing component 43, and a turntable 45.

[0047] As an optional implementation, the fixing component 44 is fixed on the turntable 45. The fixing component 44 can be rotated 180 degrees by rotating the turntable 45 to adapt to the dispensing requirements of the battery cell 20 at different edge directions.

[0048] As an optional implementation, the fixing assembly 44 includes a liftable fixing frame 46, a positioning frame 47, a positioning component, and a secondary folding assembly 49. The positioning frame 47 is disposed inside the fixing frame 46 and is used to cooperate with the fixing frame 46 to achieve the positioning and clamping of the battery cell 20.

[0049] As an optional implementation, the positioning component includes positioning blocks 48 disposed on both sides of the positioning frame 47 and bottom alignment block 51 located at the bottom of the battery cell 20. The positioning blocks 48 are used for lateral positioning, and the bottom alignment block 51 is used for bottom support and attitude correction.

[0050] As an optional implementation, the dispensing assembly 43 is disposed on one side of the fixing assembly 44, including a nozzle 50 and a driving device. The driving device controls the nozzle 50 to move along the folded edge direction of the battery cell 20 and dispenses adhesive in a metered manner, so that the adhesive line is evenly and stably distributed.

[0051] As an optional implementation, the secondary folding assembly 49 is disposed below the positioning block 48 and is used to perform a second folding of the battery cell 20 after dispensing, so that the adhesive layer is fully embedded in the folding gap and forms a closed bonding structure.

[0052] As an optional implementation, after dispensing, the second clamping transfer assembly 9 transfers the battery cell 20 to the hot-cold pressing process unit. The hot-cold pressing process unit includes a two-fold edge-pressing mechanism 10 and a side-cold pressing mechanism 11.

[0053] As an optional implementation, the two-fold edge-pressing mechanism 10 adopts a dual-heating block structure, which, together with the drive assembly 31, can achieve high-temperature shaping during the hot-pressing process. The dual heating blocks are symmetrically arranged above and below the folded edge area of ​​the battery cell 20. The lifting and lowering action of the drive assembly 31 ensures that the heating blocks are tightly attached to the folded edge, ensuring uniform heating of the adhesive layer and eliminating air bubbles and stress concentration.

[0054] As an optional implementation, after hot pressing, the battery cell 20 immediately enters the side cold pressing mechanism 11. The side cold pressing mechanism 11 also includes symmetrically arranged double cold pressing blocks and a drive assembly 31. The drive assembly 31 controls the cold pressing blocks to adhere to the folded edge of the battery cell 20, achieving rapid cooling and curing, thereby improving the encapsulation strength and dimensional stability. The continuous operation structure of the hot and cold pressing process unit avoids the deformation risk of the battery cell 20 in the thermoplastic state, ensuring the flatness and stability of the overall encapsulation appearance.

[0055] Example 4 Based on Example 1, this example describes a detection and sorting process unit in an automated cutting, folding, and hot-pressing machine for TOPCon battery cells, wherein the detection and sorting process unit includes a body pressing mechanism 12, a thickness measuring mechanism 14, a weighing mechanism 15, a CCD detection mechanism 16, a positioning mechanism 17, and a feeding mechanism 18.

[0056] As an alternative implementation, the battery cell 20 is transferred to the inspection and sorting process unit via the second transfer assembly 13.

[0057] As an optional implementation, the body pressurizing mechanism 12 is used to apply adjustable pressure to the body of the cell 20 to flatten the surface and eliminate minor warping caused by previous processes.

[0058] like Figure 10 As shown, as an optional implementation, the thickness measuring mechanism 14 includes a thickness measuring platform 52, a pressing table 53 and a thickness measuring component 54. The thickness measuring component 54 is provided with multiple sensors 55 and sensing blocks 56. The sensing blocks 56 are disposed on the pressing table 53 and arranged opposite to the sensors 55, for detecting the thickness change of the battery cell 20. The measured signal is transmitted to the control unit in real time to determine the process consistency.

[0059] As an optional implementation, the weighing mechanism 15 is located after the thickness measuring mechanism 14 and is used to detect the total weight of the battery cell 20. The mechanism is provided with a limiting component to prevent slippage.

[0060] As an optional implementation, the CCD inspection mechanism 16 is equipped with a high-resolution industrial camera system to detect appearance defects, coding quality, and edge adhesion of the battery cell 20, and to make a comprehensive judgment in combination with thickness measurement and weighing data.

[0061] As an optional implementation, the positioning mechanism 17 is located at the end of the detection area to accurately position the battery cell 20 before unloading.

[0062] As an optional implementation, the unloading mechanism 18 consists of a robot and an NG conveyor belt. The robot is positioned above the positioning mechanism 17 and can separate good products from defective products according to the detection results. Good products are conveyed to the subsequent packaging process, while defective products are output to the rework area via the NG conveyor belt.

[0063] Example 5 Based on Embodiment 1, this embodiment further defines a transfer component in the TOPCon battery cell automated cutting, folding and hot stamping integrated machine in Embodiment 1. The transfer component includes a first clamp transfer component 2, a second clamp transfer component 9, a first transfer component 7 and a second transfer component 13.

[0064] As an optional implementation, in the automated handling process, the first clamp transfer component 2, the second clamp transfer component 9, the first transfer component 7, and the second transfer component 13 constitute the core transfer system of the entire line.

[0065] like Figure 2As shown, as an optional implementation, the first clamping transfer assembly 2 is disposed on one side of the cutting and forming process unit. Its structure includes a liftable clamping block 19 and a platform 21. The battery cell 20 is placed on the platform 21, and the clamping block 19 is used to stably clamp it during transfer.

[0066] As an optional implementation, a positioning component and a positioning drive mechanism 24 are provided on one side of the platform 21. The positioning component consists of a clamping block 22 and a positioning cone 23. The positioning cone 23 is located below the clamping block 22. Under the action of the drive mechanism 24, the battery cell 20 can be accurately positioned.

[0067] As an optional implementation, the second clamping transfer assembly 9 is disposed between the inkjet printing and dispensing process unit and the hot and cold pressing process unit, and is used to smoothly transfer the battery cell 20 that has completed inkjet printing and dispensing to the two-fold hot edge station.

[0068] like Figure 11 As shown, as an optional implementation, the first transfer assembly 7 includes a first drive device 57, a first robotic arm 58, a second robotic arm 60, and a rotating component 59, wherein the first robotic arm 58, the second robotic arm 60, and the rotating component 59 provided on the first transfer assembly 7 move simultaneously.

[0069] As an optional implementation, the rotating component 59 is located between the first robotic arm 58 and the second robotic arm 60, and its output end is provided with two grippers 61 for realizing the 180-degree rotation of the battery cell 20.

[0070] As an optional implementation, the first robotic arm 58 is provided with a suction cup 62 at its end, and the second robotic arm 60 is also provided with suction cups 62 at both ends, for gripping the battery cell 20 from different positions.

[0071] As an optional implementation, the first drive device 57 is provided with a first transverse guide rail 63 at its bottom. The drive device 57 can move along the guide rail 63, thereby driving the first robotic arm 58, the second robotic arm 60 and the rotating component 59 to move back and forth, realizing efficient switching between the various mechanisms of the battery cell 20 in the inkjet printing and dispensing process unit.

[0072] like Figure 12 As shown, in one optional implementation, the second transfer assembly 13 includes a second drive device 68 and a second robotic arm group, which includes a third robotic arm 64, a fourth robotic arm 66, and a fifth robotic arm 67. In this second transfer assembly 13, the third robotic arm 64, the fourth robotic arm 66, and the fifth robotic arm 67 move simultaneously. The third robotic arm 64 and the fifth robotic arm 67 are each provided with suction cups 62 at both ends, and the fourth robotic arm 66 is provided with a single suction cup 62 at its end.

[0073] As an optional implementation, the second drive device 68 is provided with a second transverse guide rail 65 at its bottom. The drive device 68 can move back and forth along the guide rail 65 to realize multi-position handling and precise transfer of the second robotic arm assembly within the inspection and sorting process unit. Through the coordinated operation of the above-mentioned transfer components, the battery cells 20 can be automatically transferred without human intervention throughout the entire production line, significantly improving production cycle time and consistency.

[0074] As an optional implementation, during equipment operation, the control unit monitors the operating status of each process unit in real time and performs closed-loop control on key parameters of cutting, coding, dispensing, hot and cold pressing, detection, and sorting. By comprehensively judging temperature, pressure, displacement, and sensor signals, the process parameters are adaptively adjusted to ensure that each battery cell 20 is in optimal working condition during processing.

[0075] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0076] The above 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. An automated cutting, folding, and heat-forming integrated machine for TOPCon battery cells, characterized in that, The integrated machine includes a working platform, multiple process units arranged sequentially on the working platform along the direction of cell transfer, multiple transfer components, and a control unit electrically connected to the multiple process units and multiple transfer components respectively; the process units are connected through multiple transfer components to realize the automatic transfer of cells between the various process units; The process unit includes a cutting and forming process unit, a coding and dispensing process unit, a hot and cold pressing process unit, and an inspection and sorting process unit; the coding and dispensing process unit includes a coding mechanism for printing identification codes and a dispensing mechanism for dispensing adhesive on the folded edge area; the coding mechanism includes a coding component, a positioning bracket, a coding support, and a lateral movement component. The transfer assembly includes a first clamp transfer assembly, a second clamp transfer assembly, a first transfer assembly, and a second transfer assembly.

2. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 1, characterized in that, The cutting and forming process unit includes, in sequence: a precision cutting mechanism, which is used to precisely cut off the excess air pockets of the battery cell; a first-fold rolling mechanism, which adopts a roller structure and is used to perform the first folding and forming of the edge of the battery cell; and a first-fold edge-heating mechanism, which includes a heating component and a cylinder drive component, and is used to heat and shape the battery cell after the first folding and forming. The hot and cold pressing process unit includes, in sequence: a two-fold edge-pressing mechanism, which includes a double heating block and a driving assembly, for hot pressing and shaping the second fold; and a side cold pressing mechanism, which includes a double cold pressing block and a driving assembly, for cooling and curing after hot pressing. The inspection and sorting process unit sequentially includes: a body pressing mechanism, which applies adjustable pressure to the battery cell body to flatten the surface; a thickness measuring mechanism, which includes a battery platform and a thickness measuring component, for detecting the thickness of the battery cell and outputting a measurement signal; a weighing mechanism, which is equipped with a limit component and is used to weigh the battery cell; a CCD inspection mechanism, which is used to inspect the appearance, coding, and packaging quality of the battery cell; a positioning mechanism, which is used to accurately position the battery cell before unloading; and an unloading mechanism, which includes a robotic arm and an NG conveyor belt. The robotic arm is installed in the positioning mechanism to achieve automatic separation of good and defective products.

3. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 2, characterized in that, The precision cutting mechanism includes two cutting components symmetrically arranged along the axis of the working platform. The cutting components are respectively arranged on both sides of the battery cell moving path. Each cutting component is provided with a driving tool component and a cutting blade group. The cutting blade group includes an upper cutting blade and a lower cutting blade. The driving tool component is used to drive the cutting blade group to precisely cut the battery cell packaging edge. The first-folding edge-heating mechanism includes two edge-heating components symmetrically arranged along the axial direction of the working platform. The edge-heating components are respectively arranged on both sides of the moving path of the battery cell. The edge-heating component includes a heating group and a driving component. The heating group includes an upper heating block and a lower heating block. The driving component is used to drive the heating group to move up and down in the vertical direction so that the heating group is in contact with the first folding area of ​​the battery cell.

4. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 1, characterized in that, The lateral movement component includes a moving platform and a translation guide rail disposed at the bottom of the moving platform; the translation guide rail is arranged perpendicular to the direction of battery cell conveying, the moving platform can reciprocate on the translation guide rail, and the positioning bracket and the coding bracket are respectively disposed at both ends of the moving platform. The coding assembly is disposed on one side of the translation guide rail and above the coding bracket. The coding assembly includes a coding header and a delay sensor, with the delay sensor disposed in front of the coding header.

5. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 4, characterized in that, The positioning bracket includes a bottom positioning block, a side fixing block, and a top positioning block. The tab on the top of the battery cell is attached to the surface of the top positioning block to achieve positioning of the battery cell on the positioning bracket. The bottom positioning block is movably disposed at the bottom of the battery cell. The side fixing block is disposed on one side of the battery cell. Both the positioning bracket and the inkjet printer bracket are equipped with a fixing device in the middle, which is used to fix the battery cell on the moving platform; both sides of the fixing device are provided with sliding channels to realize the 180° rotation and transfer of the battery cell.

6. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 4, characterized in that, The dispensing mechanism includes a fixing component, a dispensing component, and a turntable; the fixing component is fixedly mounted on the turntable, thereby enabling the fixing component to rotate 180° via the turntable; the dispensing component is located on one side of the fixing component. The fixing assembly includes a liftable fixing frame, a positioning frame, a positioning component, and a secondary folding component. The positioning frame is disposed inside the fixing frame and is used to cooperate with the fixing frame to fix and position the battery cell. The positioning component includes positioning blocks that are movably disposed on both sides of the positioning frame and a bottom alignment block disposed at the bottom of the battery cell. The dispensing assembly includes a nozzle and a driving device, the driving device being used to drive the nozzle to dispense adhesive onto the side of the battery cell. The secondary folding assembly includes folding blocks respectively disposed below the positioning block, and the folding blocks are used to realize the secondary folding of the battery cell.

7. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 1, characterized in that, The thickness measuring assembly includes a thickness measuring platform, a clamping table, and a thickness measuring component; a thickness measuring positioning block is also provided at the bottom of the thickness measuring platform; the clamping table and the thickness measuring component are located directly above the thickness measuring platform, and the clamping table and the thickness measuring component are telescopically connected. The thickness measuring component includes multiple sensors and sensing blocks, with the sensing blocks disposed on the pressing platform and positioned opposite to the sensors.

8. The Automated Cutting, Folding, and Hot-Forming Machine for TOPCon Battery Cells according to claim 1, characterized in that, The first clamping transfer assembly is disposed on one side of the cutting and forming process unit, and is used to realize the process switching of the battery cell in the cutting and forming process unit; the second clamping transfer assembly is disposed between the inkjet printing and dispensing process unit and the hot and cold pressing process unit, and is used to transfer the battery cell that has completed the inkjet printing and dispensing process and complete the hot and cold pressing; the first transfer assembly is disposed on one side of the inkjet printing and dispensing process unit, and is used to realize the switching of the various mechanisms of the battery cell between the inkjet printing and dispensing process units; the second transfer assembly is disposed on one side of the inspection and sorting process unit, and is used to realize the switching of the various mechanisms of the battery cell between the inspection and sorting process units. Both the first clamping transfer assembly and the second clamping transfer assembly include a liftable clamping block and a platform; the platform is disposed within the clamping block and the battery cell is placed on the platform; a positioning assembly and a positioning drive mechanism connected to the positioning assembly are also provided on one side of the first clamping transfer assembly, the positioning assembly including clamping blocks and positioning cones respectively disposed on both sides of the platform; the positioning cones are disposed below the clamping blocks.

9. A fully automated cutting, folding, and heat-forming machine for TOPCon battery cells according to claim 8, characterized in that, The first transfer assembly includes a first driving device, a first robotic arm assembly and a rotating component disposed on the surface of the first driving device and movable on the surface of the first driving device; the first robotic arm assembly includes a first robotic arm and a second robotic arm, the first robotic arm and the second robotic arm are respectively disposed at both ends of the first driving device, the rotating component is disposed between the first robotic arm and the second robotic arm, the rotating component is disposed on one side of the positioning bracket, and the output end of the rotating component is provided with two grippers for realizing 180° rotation of the battery cell; The first robotic arm is provided with a suction cup at its end; the second robotic arm includes two suction cups respectively provided at both ends of the second robotic arm; The first drive device is provided with a first transverse guide rail at its bottom. The first drive device can move on the first transverse guide rail to drive the first robotic arm assembly and the rotating component to move back and forth.

10. A fully automated cutting, folding, and heat-forming machine for TOPCon battery cells according to claim 8, characterized in that, The second transfer assembly includes a second drive device and a second robotic arm assembly disposed on the surface of the second drive device and movable on the surface of the second drive device; the second robotic arm assembly includes a third robotic arm, a fourth robotic arm and a fifth robotic arm; The third and fifth robotic arms each include two suction cups respectively disposed at both ends; the fourth robotic arm includes a suction cup disposed at the end of the fourth robotic arm; The second drive device is provided with a second transverse guide rail at its bottom. The second drive device can move on the second transverse guide rail to drive the second robotic arm assembly to move back and forth.

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