Main-grid-free battery string preparation device

Abstract

The invention relates to a main-grid-free battery string preparation device, and the device comprises a feeding mechanism which comprises a string cutting assembly and a conveying and correcting assembly connected to the output end of the string cutting assembly; the first dispensing mechanism comprises a first conveying line used for conveying the battery strings in the first direction, a first dispensing assembly and a first detection assembly, the first dispensing assembly and the first detection assembly are sequentially arranged on the first conveying line, and the first dispensing assembly is arranged at the output end of the conveying and correcting assembly; and the second dispensing mechanism comprises a transferring assembly, an overturning assembly and a second conveying line for conveying the battery strings in the first direction. By adopting the planar integrated layout that the first dispensing mechanism and the second dispensing mechanism are spaced in the second direction and overlapped in projection, extra upper and lower layer spaces do not need to be reserved, space occupation in the height direction of the device is greatly reduced, integrated operation in the main-grid-free battery string preparation process is achieved, and the preparation efficiency and the product percent of pass are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to a device for preparing gridless battery strings. Background Technology

[0002] Currently, most photovoltaic (PV) cells use silver strips attached to the cell surface as grid lines. These are divided into main grids and fine grids, with the fine grids being thinner and the main grids being thicker. After current is generated, it flows through the fine grids to the main grid, and then from there to the copper solder strips for discharge. The main grid, attached to the cell surface, inevitably blocks some light. Removing the main grid reduces the shading area and increases power generation. Traditional grid lines are made of silver paste. Silver paste accounts for approximately 35% of the non-silicon cost of PV cells, making it the largest non-silicon cost item. In the PV cell manufacturing industry, gridless cells are gradually becoming the mainstream direction due to their higher photoelectric conversion efficiency and lower manufacturing costs. The processing of gridless cell strings is a key step in the production of gridless PV modules, and its quality directly affects the overall performance and lifespan of the PV module.

[0003] Currently, gridless battery string fabrication equipment generally suffers from numerous technical defects, hindering improvements in production efficiency and product quality. Specifically, traditional fabrication equipment requires two separate sets of equipment for front and back dispensing and testing. The battery strings need to be transferred between these two sets of equipment. After dispensing on one side, the battery strings need to be manually flipped and transferred to another set of equipment for dispensing on the other side, affecting the stacking strength and encapsulation performance of the battery strings. As a result, the fabrication equipment occupies a large space, the production process is cumbersome, and the overall fabrication efficiency is further reduced. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of large space occupation, complicated production process and reduced overall preparation efficiency of the existing gridless battery preparation device, thereby providing a gridless battery string preparation device.

[0005] To solve the above-mentioned technical problems, the present invention provides a gridless battery string fabrication apparatus, comprising:

[0006] The feeding mechanism includes a string cutting assembly and a conveying and correcting assembly connected to the output end of the string cutting assembly. The string cutting assembly is used to cut adjacent battery strings.

[0007] The first dispensing mechanism includes: a first conveying line for conveying a battery string along a first direction, and a first dispensing assembly and a first detection assembly sequentially disposed on the first conveying line. The first dispensing assembly is disposed at the output end of the conveying and alignment assembly, and the first detection assembly detects the battery string after dispensing by the first dispensing assembly.

[0008] The second dispensing mechanism includes: a transfer component, a flipping component, a second conveyor line for conveying battery strings along a first direction, and a second dispensing component and a second detection component sequentially disposed on the second conveyor line. The second conveyor line and the first conveyor line are spaced apart along a second direction and their projections along the second direction have an overlapping area. The flipping component is disposed in the overlapping area and located on the output side of the first conveyor line. The transfer component is located in the overlapping area and is capable of transferring the battery strings from the output end of the first conveyor line to the input side of the second conveyor line along the second direction. The second dispensing component is used to dispense adhesive onto the flipped battery strings, and the second detection component detects the battery strings after dispensing adhesive by the second dispensing component.

[0009] In one embodiment of the present invention, the cutting assembly includes: a first conveyor belt, a first linear drive, a first bracket, a second linear drive, an upper blade, and a lower blade. The output end of the first conveyor belt is connected to the input end of the conveying and alignment assembly. The first linear drive conveys along a first direction. The first bracket is disposed at the output end of the first linear drive. The second linear drive drives along a third direction. The upper blade is connected to the output end of the second linear drive. The upper blade and the lower blade correspond to each other along a third direction to cut the solder strip.

[0010] In one embodiment of the present invention, the first dispensing assembly includes: a first three-axis drive assembly; a stencil connected to the first three-axis drive assembly, the stencil having a receiving groove with a plurality of mesh openings; and a scraper assembly including a two-axis drive assembly, a connecting plate, and a scraper assembly connected to the connecting plate, the connecting plate being connected to the output end of the two-axis drive assembly, the scraper assembly being disposed within the receiving groove, and the two-axis drive assembly being capable of driving the scraper assembly to move closer to or away from the stencil.

[0011] In one embodiment of the present invention, the scraper assembly includes at least two scrapers, each of which is capable of adjusting its angle within its plane. The at least two scrapers are symmetrically inclined relative to the second direction and the third direction within the plane, and the spacing between them increases from the side closer to the connecting plate to the side closer to the mesh plate.

[0012] In one embodiment of the present invention, the first detection component includes: a second support, which includes a column and a mounting beam connected to the column; a first camera connected to the mounting beam; a light source connected to the second support; and a UV curing lamp connected to the mounting beam, wherein the UV curing lamp is disposed on one side of the light source along a first direction.

[0013] In one embodiment of the present invention, a frame is further included. The flipping assembly includes: a third linear drive, a third support, a first rotating member, a flipping frame, and a first suction cup. The third linear drive is located in the overlapping area. The third linear drive is disposed on the frame and is used for driving in a third direction. The third support is connected to the output end of the third linear drive. The first rotating member is disposed on the third support. The flipping frame is connected to the output end of the first rotating member and rotatably connected to the third support. The first suction cup is configured in two sets and is respectively disposed on opposite sides of the flipping frame.

[0014] In one embodiment of the present invention, a second detection camera is provided on the input side of the first dispensing mechanism of the first conveyor line, and a third detection camera is provided on the input side of the second dispensing mechanism of the second conveyor line.

[0015] In one embodiment of the present invention, the transfer assembly includes: a fourth linear drive disposed on the frame and located in the overlapping area, a fifth linear drive connected to the output end of the fourth linear drive, and a second suction cup connected to the output end of the fifth linear drive, wherein the fourth linear drive and the fifth linear drive are respectively used to drive the load end along a second direction and a third direction.

[0016] In one embodiment of the present invention, a buffer mechanism is provided on the output side of the second conveyor line, which includes: a sixth linear drive for driving along a second direction, a fourth bracket connected to the sixth linear drive, a seventh linear drive connected to the fourth bracket, a third suction cup connected to the seventh linear drive, and a buffer tray disposed on the frame and located on one side of the output end of the second conveyor line.

[0017] In one embodiment of the present invention, the first conveyor line includes: a conveyor support, a second rotating component, a belt, and a plurality of base plates. The second rotating component is disposed on the conveyor support, the belt is wound around the conveyor support and connected to the output end of the second rotating component, the base plates are disposed on the conveyor support and abut against the side of the belt away from the conveying surface, the plurality of base plates are continuously arranged along the length direction of the first conveyor line, and the base plates are provided with flow channels. One end of the flow channel is connected to the side of the base plate near the belt and the other end is connected to an air source. The air source is any one of a negative pressure air source, a cold air source, and a hot air source.

[0018] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0019] This invention discloses a gridless battery string fabrication device that, through the scheduling design of its various mechanisms, solves a series of technical pain points in traditional gridless battery string fabrication devices, achieving fully automated collaborative operation and significantly improving production efficiency and cycle time matching. The seamless connection between the string cutting mechanism and the first and second dispensing mechanisms, along with the transfer and flipping components, ensures seamless connection between front-side and back-side dispensing inspection. The planar integrated layout of the first and second dispensing mechanisms, spaced apart along the second direction and with overlapping projections, eliminates the need for additional upper and lower maintenance channels, significantly reducing the space occupied in the device's height direction. This achieves integrated operation from raw material cutting to double-sided dispensing and inspection during gridless battery string fabrication, greatly improving fabrication efficiency and product qualification rate. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the preparation device of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the skewer cutting component of the present invention;

[0023] Figure 3 This is a schematic diagram showing the positions of the upper and lower blades in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of the conveying and correction component of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first conveyor line of the present invention;

[0026] Figure 6 This is a partial schematic diagram of the first conveyor line of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the first dispensing assembly of the present invention;

[0028] Figure 8 This is a schematic diagram of the scraper assembly of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the stencil of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the first detection component of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the flipping component of the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of the transfer component of the present invention;

[0033] Figure 13 This is a schematic diagram of the caching mechanism of the present invention;

[0034] Figure 14 This is a schematic diagram of the structure at the second conveyor line of the present invention.

[0035] Explanation of reference numerals in the accompanying drawings: 1. Slicing assembly; 101. First conveyor belt; 102. First linear drive component; 103. First support; 104. Second linear drive component; 105. Upper blade; 106. Lower blade; 2. Conveyor alignment assembly; 3. First dispensing assembly; 31. First three-axis drive assembly; 32. Mesh plate; 33. Two-axis drive assembly; 34. Connecting plate; 35. Scraper assembly; 36. Receiving groove; 37. Mesh; 4. First detection assembly; 41. Second bracket; 42. Light source; 43. Column; 44. Mounting beam; 45. First camera; 46. Fan; 5. Tilting assembly; 51. Third linear drive; 52. Third bracket; 53. First rotating component; 54. Tilting frame; 55. First suction cup; 6. Transfer assembly; 61. Fourth linear drive; 62. Fifth linear drive; 63. Second suction cup; 7. First conveyor line; 71. Conveyor bracket; 72. Belt; 73. Base plate; 8. Second conveyor line; 9. Buffer mechanism; 91. Sixth linear drive; 92. Fourth bracket; 93. Seventh linear drive; 94. Third suction cup; 10. Second dispensing assembly; 11. Second detection assembly; 12. Frame; 13. Third conveyor line. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0037] Example

[0038] Reference Figures 1-14 As shown, a gridless battery string fabrication apparatus of the present invention includes:

[0039] The feeding mechanism includes a string cutting component 1 and a conveying and straightening component 2 connected to the output end of the string cutting component 1. The string cutting component 1 is used to cut adjacent battery strings. In this embodiment, the battery strings are gridless battery strings.

[0040] The first dispensing mechanism includes: a first conveying line 7 for conveying battery strings along a first direction, and a first dispensing assembly 3 and a first detection assembly 4 sequentially disposed on the first conveying line 7. The first dispensing assembly 3 is disposed at the output end of the conveying correction assembly 2, and the first detection assembly 4 detects the battery strings after dispensing by the first dispensing assembly 3.

[0041] The second dispensing mechanism includes: a transfer component 6, a flipping component 5, a second conveyor line 8 for conveying battery strings along a first direction, and a second dispensing component 10 and a second detection component 11 sequentially disposed on the second conveyor line 8. The second conveyor line 8 and the first conveyor line 7 are spaced apart along a second direction and their projections along the second direction have an overlapping area. The flipping component 5 is disposed in the overlapping area and located on the output side of the first conveyor line 7. The transfer component 6 is located in the overlapping area and is capable of transferring the battery strings from the output end of the first conveyor line 7 to the input side of the second conveyor line 8 along the second direction. The second dispensing component 10 is used to dispense adhesive onto the flipped battery strings, and the second detection component 11 detects the battery strings after dispensing adhesive by the second dispensing component 10.

[0042] The present invention discloses a gridless battery string manufacturing device, which uses a string cutting component 1 to cut continuous battery string raw materials, separating adjacent battery strings into independent units. The cut battery strings enter a conveying and straightening component 2, where they are straightened during the conveying process. The straightened battery strings are then conveyed to the first conveyor line 7 of the first dispensing mechanism. The first conveyor line 7 conveys the battery strings along the first direction, i.e., the length direction of the device, to below the first dispensing component 3. The first dispensing component 3 is activated and completes the dispensing operation on the first side of the battery strings. After dispensing is completed, the battery strings continue to be conveyed along the first conveyor line 7 to the first detection component 4. The first detection component 4 detects the dispensing quality on the first side. Qualified battery strings are conveyed to the output end of the first conveyor line 7, while unqualified ones are rejected or rejected downstream.

[0043] When a qualified battery string reaches the output end of the first conveyor line 7, the transfer component 6 is activated and moves along the second direction, i.e., the width direction of the device, to above the battery string to prepare for gripping. The flipping component 5, located in the overlapping area, activates, flipping the battery string 180 degrees so that the un-adhesive-dispensed second side faces upwards. After flipping, the transfer component 6 transfers the flipped battery string to the input side of the second conveyor line 8. The second conveyor line 8 conveys the flipped battery string along the first direction to below the second dispensing component 10, which completes the dispensing operation on the second side of the battery string. After dispensing, the battery string continues to be conveyed to the second inspection component 11, which inspects the dispensing quality on the second side. Qualified battery strings proceed to subsequent processes, while unqualified ones are rejected.

[0044] The cutting assembly 1 includes: a first conveyor belt 101, a first linear drive 102, a first support 103, a second linear drive 104, an upper blade 105, and a lower blade 106. The output end of the first conveyor belt 101 is connected to the input end of the conveying and alignment assembly 2. The first linear drive 102 conveys along a first direction. The first support 103 is disposed at the output end of the first linear drive 102. The second linear drive 104 drives along a third direction. The upper blade 105 is connected to the output end of the second linear drive 104. The upper blade 105 and the lower blade 106 correspond to each other along a third direction to cut the welding strip.

[0045] The conveying and straightening assembly 2 is straightened by limiting the position of the baffles on both sides. The position of the baffles is adjustable along the second direction. The lower blade 106 is fixedly installed on the conveying path of the first conveyor belt 101. Its position corresponds to that of the upper blade 105 along the third direction, forming an upper and lower cutting structure. The blade shape of the lower blade 106 matches that of the upper blade 105.

[0046] Before the string cutting operation begins, according to the specifications of the battery strings to be cut, the first linear drive 102 drives the first support 103 to move along the first direction, adjusting the positions of the upper blade 105 and the lower blade 106 in the first direction so that the scraper assembly 35 is aligned with the solder strip between adjacent battery strings. The battery string raw materials are conveyed by the first conveyor belt 101. When the solder strip between adjacent battery strings moves directly above the lower blade 106, the first conveyor belt 101 stops conveying. The second linear drive 104 starts, driving the upper blade 105 to move downward along the third direction. Under the action of gravity and driving force, the upper blade 105 forms a shearing force with the lower blade 106, cutting the solder strip between adjacent battery strings, completing one cutting operation. After cutting, the second linear drive 104 drives the upper blade 105 to reset upward along the third direction, and the first conveyor belt 101 resumes conveying, transporting the cut independent battery strings to the conveyor alignment assembly 2. At the same time, the raw materials of the subsequent uncut battery strings are transported to the cutting area to enter the next cutting cycle.

[0047] The first dispensing assembly 3 includes: a first three-axis drive assembly 31; a stencil connected to the first three-axis drive assembly 31, the stencil having a receiving groove 36 with multiple mesh holes 37; and a scraper assembly 35, which includes a two-axis drive assembly 33, a connecting plate 34, and a scraper assembly 35 connected to the connecting plate 34. The connecting plate 34 is connected to the output end of the two-axis drive assembly 33, and the scraper assembly 35 is disposed in the receiving groove 36. The two-axis drive assembly 33 can drive the scraper assembly 35 to move closer to or away from the stencil.

[0048] Before the dispensing operation, the first three-axis drive assembly 31 is activated, driving the stencil to move to a preset position, aligning the mesh openings 37 on the stencil with the positions of the battery strings to be dispensed in the dispensing area. Then, a measured amount of adhesive is injected into the receiving groove 36 of the stencil. The second-axis drive assembly 33 is activated, driving the connecting plate 34 to move the scraper along a direction close to the bottom of the groove, ensuring the scraper blade contacts or maintains a preset gap with the bottom of the groove. The second-axis drive assembly 33 drives the scraper to reciprocate along a combined trajectory of the first and second directions within the receiving groove 36, evenly dispensing the adhesive into each mesh opening 37. Under the pressure of the scraper, the adhesive fills the mesh openings 37 and is imprinted onto the positions of the battery strings to be dispensed, completing the dispensing operation.

[0049] After dispensing is completed, the two-axis drive assembly 33 drives the scraper to move away from the bottom of the stencil groove and reset to its initial position. Simultaneously, the first three-axis drive assembly 31 drives the stencil upwards in a third direction, separating it from the battery string and preventing adhesive adhesion between the stencil and the battery string. Subsequently, the first conveyor line 7 transports the dispensed battery string to the first detection assembly 4, while simultaneously transporting the next battery string to be dispensed to the dispensing area, beginning the next dispensing cycle. If adjustments to the dispensing position or amount are needed, the position of the stencil can be adjusted via the first three-axis drive assembly 31, or the gap between the scraper and the bottom of the stencil groove can be adjusted via the two-axis drive assembly 33.

[0050] The scraper assembly 35 includes at least two scrapers, each of which can adjust its angle within its plane. The at least two scrapers are symmetrically inclined relative to the second direction and the third direction within the plane, and the spacing between them increases from the side closer to the connecting plate 34 to the side closer to the mesh plate 32.

[0051] Before dispensing, adjust the tilt angle of the two scrapers according to the viscosity of the adhesive and the specifications of the mesh 37 of the stencil. Loosen the locking bolts of the angle adjustment structure on the connecting plate 34 to adjust the two scrapers to a tilted state symmetrical about the planes of the second and third directions, then tighten the locking bolts to fix the angle. Simultaneously, adjust the height of the connecting plate 34 using the two-axis drive assembly 33 to maintain a preset gap between the blades of the two scrapers and the bottom of the stencil receiving groove 36.

[0052] During the dispensing operation, after the adhesive is injected into the receiving tank 36, the dual-axis drive assembly 33 drives the connecting plate 34 to move two scrapers along a preset trajectory. Because the two scrapers are symmetrically inclined and the distance between them gradually increases from the side closer to the connecting plate 34 to the side closer to the stencil, the adhesive is squeezed and guided by the two scrapers during the scraping process, flowing towards the mesh openings 37 of the stencil. During diffusion and flow, the adhesive is evenly spread and fully fills the mesh openings 37 under the pressure, preventing incomplete filling or adhesive accumulation. When the scraper moves to the end of the receiving tank 36, the dual-axis drive assembly 33 drives the scraper to move in the opposite direction for a second scraping operation, further improving the uniformity of the adhesive distribution. After scraping is completed, the scraper returns to its original position, awaiting the next scraping operation.

[0053] The first detection component 4 includes: a second support 41, which includes a column 43 and a mounting beam 44 connected to the column 43; a first camera 45, which is connected to the mounting beam 44; a light source 42, which is connected to the second support 41; and a UV curing lamp, which is connected to the mounting beam 44, and the UV curing lamp is disposed on one side of the light source 42 along a first direction.

[0054] When the battery string with the first layer of adhesive applied is conveyed to the detection area of ​​the first detection component 4 by the first conveyor line 7, the light source 42 is activated, emitting uniform illumination onto the surface of the battery string to provide lighting conditions for image acquisition by the first camera 45. Subsequently, the first camera 45 is activated to acquire images of the adhesive-applied area of ​​the battery string, and the acquired image information is transmitted to the control system of the equipment. The control system analyzes and processes the image information to determine whether there are defects such as missing adhesive dots, excessive adhesive overflow, insufficient adhesive, or adhesive dot misalignment.

[0055] If the test result is satisfactory, the battery string continues to be conveyed along the first conveyor line 7 and enters the irradiation area of ​​the UV curing lamp. The UV curing lamp is activated, emitting ultraviolet light to cure the adhesive on the battery string. Under the action of ultraviolet light, the adhesive quickly cures, forming a stable adhesive layer, preventing the adhesive from flowing and causing positional displacement or deformation of adhesive dots during subsequent conveying and flipping. Fan 46 further accelerates the curing process. After curing, the battery string is conveyed to the output end of the first conveyor line 7 for subsequent transfer and flipping processes. If the test result is unsatisfactory, the control system sends a signal, and the equipment's rejection mechanism is activated, removing the unsatisfactory battery string from the conveyor line to prevent waste in subsequent processes.

[0056] It also includes a frame 12. The flipping assembly 5 includes: a third linear drive 51, a third support 52, a first rotating component 53, a flipping frame 54, and a first suction cup 55. The third linear drive 51 is located in the overlapping area. The third linear drive 51 is disposed on the frame 12 and is used for driving along a third direction. The third support 52 is connected to the output end of the third linear drive 51. The first rotating component 53 is disposed on the third support 52. The flipping frame 54 is connected to the output end of the first rotating component 53 and rotatably connected to the third support 52. The first suction cup 55 is configured in two sets and is respectively disposed on opposite sides of the flipping frame 54.

[0057] When the battery string, after completing the first layer of adhesive application, inspection, and curing, is conveyed to the output end of the first conveyor line 7, the third linear drive 51 is activated, driving the third support 52 to move downwards along a third direction. This causes the flipping frame 54 and the first suction cup 55 to descend synchronously, so that the adsorption surface of one set of suction cups adheres to the surface of the battery string. Subsequently, the negative pressure air source is activated, and the first suction cup 55 generates negative pressure to adsorb and fix the battery string. After adsorption is completed, the third linear drive 51 drives the third support 52 to move upwards along a third direction, raising the battery string to a preset flipping height to avoid interference between the battery string and the conveyor line or other components during the flipping process.

[0058] The first rotating component 53 drives the flipping frame 54 to rotate around the rotating axis by 180 degrees, flipping the surface of the battery string that was originally facing the first conveyor line 7 to face the second conveyor line 8. During the flipping process, the servo drive of the first rotating component 53 ensures a stable flipping speed, preventing the battery string from shifting or falling off due to centrifugal force. After the flipping is completed, it docks with the transfer assembly 6, the negative pressure air source is turned off, the first suction cup 55 releases the battery string, and the transfer assembly 6 places the battery string on the input side of the second conveyor line 8, completing the flipping operation. Afterwards, the third linear drive component 51 drives the third bracket 52 to reset, and the first rotating component 53 drives the flipping frame 54 to rotate and reset, awaiting the next round of flipping operations.

[0059] The first conveyor line 7 is equipped with a second detection camera on the input side of the first dispensing mechanism, and the second conveyor line 8 is equipped with a third detection camera on the input side of the second dispensing mechanism.

[0060] When the battery string, after being aligned by the alignment component 2, is conveyed to the input side of the first dispensing mechanism on the first conveyor line 7, the second detection camera is activated to acquire images of the battery string's surface. The acquired image information includes surface defects such as cracks, stains, and missing corners, as well as positional information such as whether there is any offset along the second direction. After the image information is transmitted to the control system, the control system analyzes and judges it. If there are defects on the surface of the battery string or the positional offset exceeds the allowable range, it is judged as unqualified, and the control system issues a signal to remove or adjust the unqualified battery string from the conveyor line; if it is judged as qualified, the battery string continues to be conveyed along the first conveyor line 7 to the first dispensing component 3 to enter the dispensing operation.

[0061] When the battery string, after being flipped by the flipping component 5, is transferred to the input side of the second dispensing mechanism on the second conveyor line 8, the third detection camera is activated to acquire images of the surface of the flipped battery string, and also detects surface defects and location information. After the image information is transmitted to the control system, the control system analyzes and judges it. If it is determined to be unqualified, the rejection mechanism on the second conveyor line 8 is activated to reject the unqualified battery string; if it is determined to be qualified, the battery string continues to be conveyed along the second conveyor line 8 to the second dispensing component 10 to enter the dispensing operation on the second surface. In this embodiment, the second dispensing component 10 is the same as the first dispensing mechanism component, the second detection component 11 has the same structure as the first detection component 4, and the second conveyor line 8 has the same structure as the first conveyor line 7.

[0062] The transfer assembly 6 includes: a fourth linear drive 61 disposed on the frame 12 and located in the overlapping area, a fifth linear drive 62 connected to the output end of the fourth linear drive 61, and a second suction cup 63 connected to the output end of the fifth linear drive 62. The fourth linear drive 61 and the fifth linear drive 62 are respectively used to drive the load end along the second direction and the third direction.

[0063] After the flipping assembly 5 flips the battery string, the second suction cup 63 is driven to move downwards along a third direction by the fourth linear drive 61 and the fifth linear drive 62, so that the adsorption surface of the second suction cup 63 is attached to the surface of the battery string. When the negative pressure air source is activated, the second suction cup 63 generates negative pressure, which firmly adsorbs and fixes the battery string.

[0064] After adsorption is complete, the fifth linear drive unit 62 is activated, driving the second suction cup 63 to move upward along a third direction, raising the battery string to a preset transfer height to avoid interference between the battery string and the conveyor line or other components during the transfer process. The fourth linear drive unit 61 is activated again, driving the fifth linear drive unit 62 and the second suction cup 63 to move along a second direction to above the input side of the second conveyor line 8, completing the horizontal transfer of the battery string from the first conveyor line 7 to the second conveyor line 8.

[0065] After reaching the input side of the second conveyor line 8, the fifth linear drive unit 62 is activated, driving the second suction cup 63 to move downwards along a third direction, placing the battery string onto the conveying surface of the second conveyor line 8. The negative pressure air source is turned off, and the second suction cup 63 releases the battery string, completing the transfer operation of the battery string after flipping.

[0066] The output side of the second conveyor line 8 is provided with a buffer mechanism 9, which includes: a sixth linear drive member 91 for driving along the second direction, a fourth bracket 92 connected to the sixth linear drive member 91, a seventh linear drive member 93 connected to the fourth bracket 92, a third suction cup 94 connected to the seventh linear drive member 93, and a buffer tray disposed on the frame 12 and located on one side of the output end of the second conveyor line 8.

[0067] When the battery string that has completed the second dispensing and inspection is conveyed to the output end of the second conveyor line 8, if the battery string passes the inspection, it can directly enter the subsequent process through the second conveyor line 8; if any battery string fails the inspection, the buffer mechanism 9 is activated. The sixth linear drive 91 is activated, driving the fourth bracket 92 and the third suction cup 94 to move along the second direction above the battery string at the output end of the second conveyor line 8. Subsequently, the third suction cup 94 descends under the drive of the fourth bracket 92, adhering to the surface of the battery string. The negative pressure air source is activated, and the third suction cup 94 adsorbs and fixes the battery string. After adsorption is completed, the third suction cup 94 rises, and the sixth linear drive 91 drives the fourth bracket 92 and the third suction cup 94 to move along the second direction above the buffer tray. The third suction cup 94 descends, placing the battery string in the groove of the buffer tray. The negative pressure air source is turned off, and the third suction cup 94 releases the unqualified battery string directly into the buffer tray for retrieval.

[0068] Furthermore, multiple buffer trays can be configured. If subsequent processes are busy, the buffer mechanism 9 is activated. The sixth linear drive 91 is activated, driving the fourth bracket 92 and the third suction cup 94 to move along the second direction to above the battery string at the output end of the second conveyor line 8. Subsequently, the third suction cup 94 descends under the drive of the fourth bracket 92, adhering to the surface of the battery string. The negative pressure air source is activated, and the third suction cup 94 adsorbs and fixes the battery string. According to the available position of the buffer tray, the horizontal position of the third suction cup 94 is adjusted, and then the third suction cup 94 descends, placing the battery string into the positioning groove of the buffer tray. The negative pressure air source is turned off, and the third suction cup 94 releases the battery string, completing one buffer storage. The above process is repeated to buffer the battery strings that have subsequently completed the second side adhesive application into the buffer tray.

[0069] When subsequent processes are idle, the buffer mechanism 9 reverses its operation, and the third suction cup 94 moves above the buffer tray to pick up the buffered battery strings, which are then transferred to the conveyor line of the subsequent processes, achieving an orderly supply of battery strings. The positioning grooves of the buffer tray ensure the positional stability of the battery strings during the buffering process, avoiding displacement or collision damage.

[0070] To improve the transfer efficiency, a third conveyor line 13 is also provided at the input end of the second conveyor line 8. The third conveyor line 13 is located in the overlapping area, and the second conveyor line 8 and the third conveyor line 13 are set independently.

[0071] The first conveyor line 7 includes: a conveyor support 71, a second rotating component, a belt 72, and multiple base plates 73. The second rotating component is disposed on the conveyor support 71. The belt 72 is wound around the conveyor support 71 and connected to the output end of the second rotating component. The base plates 73 are disposed on the conveyor support 71 and abut against the side of the belt 72 away from the conveying surface. Multiple base plates 73 are continuously arranged along the length direction of the first conveyor line 7. Each base plate 73 has a flow channel. One end of the flow channel is connected to the side of the base plate 73 near the belt 72, and the other end is connected to an air source. The air source can be any one of a negative pressure air source, a cold air source, or a hot air source.

[0072] During the conveying operation, the second rotating component is activated, driving the belt 72 to rotate cyclically in the first direction. The battery string is placed on the conveying surface of the belt 72 and moves together with the belt 72 in the first direction to achieve conveying. During the conveying process, the base plate 73 provides stable support for the belt 72, preventing the belt 72 from sinking due to the weight of the battery string, ensuring that the conveying surface is flat, and preventing the battery string from shifting due to unevenness of the conveying surface.

[0073] Select the appropriate air source according to process requirements: If it is necessary to improve the positioning stability of the battery string, activate the negative pressure air source. The airflow forms a negative pressure through the flow channel of the base plate 73, causing the belt 72 to fit tightly against the base plate 73. At the same time, it generates an adsorption force on the battery string, firmly fixing the battery string to the conveying surface and preventing displacement during conveying. If the dispensing process requires a specific temperature environment, and the negative pressure, cold air source, or hot air source of each area is independently controlled, cold or hot air is delivered to the belt 72 through the flow channel via the cold or hot air source. The cold or hot air is transferred to the battery string through the belt 72, regulating the temperature of the battery string and ensuring that the adhesive can be dispensed and cured at a suitable temperature. When the battery string is conveyed to the target position, the second rotating component stops rotating, and the belt 72 stops conveying, completing one conveying operation. If it is necessary to adjust the conveying speed, it can be achieved by adjusting the rotation speed of the second rotating component to adapt to different process cycle requirements.

[0074] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for fabricating gridless battery strings, characterized in that, include: The feeding mechanism includes a string cutting assembly and a conveying and correcting assembly connected to the output end of the string cutting assembly. The string cutting assembly is used to cut adjacent battery strings. The first dispensing mechanism includes: a first conveying line for conveying a battery string along a first direction, and a first dispensing assembly and a first detection assembly sequentially disposed on the first conveying line. The first dispensing assembly is disposed at the output end of the conveying and alignment assembly, and the first detection assembly detects the battery string after dispensing by the first dispensing assembly. The second dispensing mechanism includes: a transfer component, a flipping component, a second conveyor line for conveying battery strings along a first direction, and a second dispensing component and a second detection component sequentially disposed on the second conveyor line. The second conveyor line and the first conveyor line are spaced apart along a second direction and their projections along the second direction have an overlapping area. The flipping component is disposed in the overlapping area and located on the output side of the first conveyor line. The transfer component is located in the overlapping area and is capable of transferring the battery strings from the output end of the first conveyor line to the input side of the second conveyor line along the second direction. The second dispensing component is used to dispense adhesive onto the flipped battery strings, and the second detection component detects the battery strings after dispensing adhesive by the second dispensing component.

2. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The cutting assembly includes: a first conveyor belt, a first linear drive, a first bracket, a second linear drive, an upper blade, and a lower blade. The output end of the first conveyor belt is connected to the input end of the conveying and alignment assembly. The first linear drive conveys along a first direction. The first bracket is disposed at the output end of the first linear drive. The second linear drive drives along a third direction. The upper blade is connected to the output end of the second linear drive. The upper blade and the lower blade correspond to each other along a third direction to cut the solder strip.

3. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The first dispensing assembly includes: a first three-axis drive assembly; a stencil connected to the first three-axis drive assembly, the stencil having a receiving groove with multiple mesh openings; and a scraper assembly including a two-axis drive assembly, a connecting plate, and a scraper assembly connected to the connecting plate, the connecting plate being connected to the output end of the two-axis drive assembly, the scraper assembly being disposed within the receiving groove, and the two-axis drive assembly being capable of driving the scraper assembly to move closer to or further away from the stencil.

4. The apparatus for fabricating a gridless battery string according to claim 3, characterized in that: The scraper assembly includes at least two scrapers, each of which can adjust its angle within its plane. The at least two scrapers are symmetrically inclined relative to the second direction and the third direction within the plane, and the spacing between them increases from the side closer to the connecting plate to the side closer to the mesh plate.

5. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The first detection component includes: a second bracket, which includes a column and a mounting beam connected to the column; a first camera connected to the mounting beam; a light source connected to the second bracket; and a UV curing lamp connected to the mounting beam, wherein the UV curing lamp is disposed on one side of the light source along a first direction.

6. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: It also includes a frame, and the flipping assembly includes: a third linear drive, a third bracket, a first rotating component, a flipping frame, and a first suction cup. The third linear drive is located in the overlapping area, the third linear drive is disposed on the frame and used for driving in a third direction, the third bracket is connected to the output end of the third linear drive, the first rotating component is disposed on the third bracket, the flipping frame is connected to the output end of the first rotating component and rotatably connected to the third bracket, and the first suction cup is configured in two sets and respectively disposed on opposite sides of the flipping frame.

7. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The first conveyor line is equipped with a second detection camera on the input side of the first dispensing mechanism, and the second conveyor line is equipped with a third detection camera on the input side of the second dispensing mechanism.

8. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The transfer assembly includes: a fourth linear drive unit disposed on the frame and located in the overlapping area, a fifth linear drive unit connected to the output end of the fourth linear drive unit, and a second suction cup connected to the output end of the fifth linear drive unit. The fourth and fifth linear drive units are respectively used to drive the load end along the second and third directions.

9. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The output side of the second conveyor line is provided with a buffer mechanism, which includes: a sixth linear drive for driving along a second direction, a fourth bracket connected to the sixth linear drive, a seventh linear drive connected to the fourth bracket, a third suction cup connected to the seventh linear drive, and a buffer tray disposed on the frame and located on one side of the output end of the second conveyor line.

10. The apparatus for fabricating a gridless battery string according to claim 1, characterized in that: The first conveyor line includes: a conveyor support, a second rotating component, a belt, and multiple base plates. The second rotating component is disposed on the conveyor support. The belt is wound around the conveyor support and connected to the output end of the second rotating component. The base plates are disposed on the conveyor support and abut against the side of the belt away from the conveying surface. Multiple base plates are continuously arranged along the length of the first conveyor line. Each base plate has a flow channel. One end of the flow channel is connected to the side of the base plate near the belt, and the other end is connected to an air source. The air source can be any one of a negative pressure air source, a cold air source, or a hot air source.

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