A photovoltaic cell string assembly machine

Abstract

This invention relates to a photovoltaic cell string assembly machine, comprising a frame and a cell string feeding mechanism, a handling and arrangement mechanism, a welding mechanism, and a transport mechanism mounted on the frame. The frame is sequentially arranged with a feeding area, an arrangement area, and a welding area along a first direction. The transport mechanism passes through the feeding area, arrangement area, and welding area along the first direction. The cell string feeding mechanism is located above the transport mechanism and is used to transport cell strings to the feeding area along the first direction. The handling and arrangement mechanism is used to move the cell strings from the feeding area to a glass plate in the arrangement area and arrange them to form a cell string assembly. The welding mechanism is located in the welding area and is used to weld busbars onto the arranged cell strings. The feeding area also includes a buffer area with a buffer mechanism for buffering the cell strings. The assembly machine of this invention can automatically arrange cell strings on a glass plate and weld busbars to the cell strings after arrangement, improving welding efficiency and saving time and labor.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic production technology, and in particular to a photovoltaic cell string assembly machine. Background Technology

[0002] In the production of photovoltaic silicon crystal modules, several battery strings are arranged in columns to form rectangular sheets, thereby producing solar panels with a large area.

[0003] In the processing of crystalline solar cells, it is usually necessary to align the busbars and cell strings before welding. In existing technologies, welding the busbars and cell strings is typically completed in stages using multiple machines. Because the equipment is not integrated, the process is fragmented and involves numerous machines, making it difficult to achieve a single, efficient machine, which can easily lead to defective modules and low work efficiency. Therefore, this invention provides a photovoltaic cell string aligning machine. Summary of the Invention

[0004] This invention provides a photovoltaic cell string arranging machine that can automatically arrange cell strings on a glass plate, and weld busbars to the cell strings after the arrangement is completed. A buffer plate is set at the cell string feeding point to ensure the efficiency of cell string handling and arrangement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A photovoltaic cell string assembly machine, characterized in that it includes a frame and a cell string feeding mechanism, a handling and assembly mechanism, a welding mechanism and a transport mechanism disposed on the frame; The frame is provided with a feeding area, a layout area and a welding area in sequence along the first direction; The transport mechanism passes through the loading area, the layout area and the welding area along the first direction, and is used to transport the outer glass plate sequentially to the loading area, the layout area and the welding area; The battery string loading mechanism is located above the transport mechanism, and at least its output end is located in the loading area, for transporting battery strings to the loading area along the first direction; The transport and layout mechanism is used to transport the battery strings in the loading area to the glass plate in the layout area and arrange them to form a battery string group. The welding mechanism is located in the welding area and is used to weld busbars onto the battery string after the layout is completed. The feeding area also includes a buffer area, which is equipped with a buffer mechanism for buffering battery strings; When the battery string feeding mechanism is normally transporting battery strings, the transport and layout mechanism transports the battery strings from the output end of the battery string feeding mechanism to the glass plate in the layout area. After the battery strings in the layout area have been arranged on the glass plate, the transport and layout mechanism transports the battery strings from the output end of the battery string feeding mechanism to the buffer mechanism. Alternatively, if the battery string feeding mechanism fails to transport the battery strings normally, the transport and layout mechanism will transport the battery strings from the buffer mechanism to the glass plate in the layout area.

[0006] Preferably, the battery string feeding mechanism includes two sets of feeding sub-mechanisms. Both sets of feeding sub-mechanisms transport battery strings along a first direction and are distributed along a second direction. The first direction and the second direction are located on the same horizontal plane and are perpendicular to each other. The transport and layout mechanism includes two sets of transport mechanisms. The glass plate is distributed along the second direction with two layout areas. The two sets of transport mechanisms, the two sets of feeding sub-mechanisms and the two layout areas are correspondingly set and used in conjunction. The buffer area has two buffer sub-areas distributed along the second direction. The buffer mechanism includes a buffer plate, and the buffer plate is provided in two sets, which are correspondingly arranged in the two buffer sub-areas. The two buffer sub-areas are respectively arranged with the two sets of feeding sub-mechanisms. When the two sets of feeding sub-mechanisms are transporting battery strings normally, the two sets of conveying mechanisms buffer the battery strings at the output end of the two sets of feeding sub-mechanisms to the buffer plates in the two buffer sub-areas according to the battery string layout of the two layout areas. Alternatively, if one or two of the feeding sub-mechanisms fail to transport the battery strings normally, the corresponding transport mechanism will transport the battery strings in the buffer board to the layout area.

[0007] Preferably, the caching mechanism further includes a cache reciprocating component, and the two sets of cache plates are distributed along the vertical direction; The reciprocating buffer assembly is connected to the ends of both sets of buffer boards to drive the two sets of buffer boards to move alternately along the second direction, so that the two sets of buffer boards exchange positions in the two buffer sub-regions.

[0008] Preferably, the cache reciprocating assembly includes two sets of cache synchronization band assemblies and a cache driver; the two sets of cache synchronization band assemblies are respectively located at both ends of the cache board along a first direction; The ends of the two sets of cache boards near the cache synchronization belt are respectively connected to the synchronization belts on both sides of the same cache synchronization belt assembly. The cache driver is connected to the lower cache board to push the lower cache board to move in the second direction.

[0009] Preferably, the length of the upper cache plate along the first direction is greater than the length of the lower cache plate along the first direction, the lower cache plate is located between the two sets of cache synchronization band assemblies, and the two sets of cache synchronization band assemblies are located below the two ends of the upper cache plate along the first direction.

[0010] Preferably, the transport mechanism includes a first transport mechanism and a second transport mechanism for transporting glass plates; The first transport mechanism is located in the loading area, the second transport mechanism passes through the layout area and the welding area, and the output end of the first transport mechanism is located at the input end of the second transport mechanism; The first transport mechanism includes a transverse transport mechanism for transporting glass plates along a first direction and a longitudinal transport mechanism for transporting glass plates along a second direction. The frame is provided with a plate inlet, and the input end of the longitudinal transport mechanism is located at the plate inlet. The lateral transport mechanism is also connected to a lifting drive component, so that the entire lateral transport mechanism can move in the vertical direction. The lateral transport mechanism and the longitudinal transport mechanism are interspersed within the loading area.

[0011] Preferably, both sets of the conveying mechanisms include a three-axis moving assembly, a rotating assembly, and a first adsorption assembly; The three-axis moving assembly for handling is mounted on the frame, and the rotating assembly is mounted on the moving end of the three-axis moving assembly for handling, so that the rotating assembly can move along the first direction, the second direction and the vertical direction; The first adsorption component is disposed at the rotating end of the rotating component, so that the first adsorption component rotates in the horizontal direction, and the first adsorption component is used to adsorb the battery string. Furthermore, a monitoring device is provided on the frame in the loading area to cooperate with the rotating assembly so that the conveying mechanism places the battery string on the glass plate along the first direction.

[0012] Preferably, the welding mechanism includes a string lifting sub-mechanism, a busbar material preparation sub-mechanism, a busbar transport sub-mechanism, and a welding sub-mechanism, all mounted on the frame. The battery string lifting mechanism is located above the transport mechanism, and its moving end lifts the battery string on the glass plate to a certain height. The busbar preparation sub-mechanism is located at the end of the frame along the second direction and is used to prepare busbars adapted to the length of the battery string; The transport end of the busbar transport sub-mechanism transports the busbars on the busbar preparation sub-mechanism to the bottom of the battery string at a certain height, and makes the busbars abut against the leads on the battery string. The transport end of the busbar transport sub-mechanism has three locations, which transport the three sets of busbars to the front end, middle and rear end of the battery string along the second direction, respectively. The welding end of the welding sub-mechanism moves to the point where the busbar and the lead wire of the battery string meet, and welds the two together.

[0013] Preferably, the busbar material preparation sub-mechanism includes a first material preparation sub-mechanism and a second material preparation sub-mechanism, the first material preparation sub-mechanism and the second material preparation sub-mechanism being located at the two ends of the frame along the second direction, respectively; The busbar transport submechanism includes a first transport submechanism and a second transport submechanism, which transport the busbars at the first material preparation submechanism and the second material preparation submechanism respectively. The lifting sub-mechanism and the welding sub-mechanism are located between the first material preparation sub-mechanism and the second material preparation sub-mechanism.

[0014] Preferably, the string lifting mechanism includes a first string lifting mechanism and a second string lifting mechanism, which are respectively used to lift the battery strings in two rows of areas on the glass plate to a certain height. The welding sub-mechanism includes a first welding sub-mechanism, a second welding sub-mechanism, and a third welding sub-mechanism distributed along the second direction, which are respectively used to weld three sets of busbars to the front end, middle and rear end of the battery string along the second direction; The first welding sub-mechanism, the first string-lifting sub-mechanism, the second welding sub-mechanism, the second string-lifting sub-mechanism, and the third welding sub-mechanism are distributed sequentially along the second direction.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By using the battery string feeding mechanism, the handling and layout mechanism, the welding mechanism and the transportation mechanism in combination, the battery strings can be automatically fed, arranged on the glass plate to form battery string groups and welded on the arranged battery string groups, saving time and labor, and the welding efficiency of the busbar and battery strings is higher.

[0016] 2. A buffer area and buffer mechanism are set up to work in conjunction with the battery string feeding mechanism and the transport and layout mechanism. This ensures the efficiency of the transport and layout mechanism in handling battery strings and the efficiency of the battery strings in the layout area on the glass plate. In addition, it can buffer the excess battery strings on the battery string feeding mechanism after layout, so as to avoid the accumulation of battery strings at the output end of the battery string feeding mechanism, which would affect the subsequent transport and layout mechanism and ensure the smooth transport and layout of battery strings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a side view of the manifold machine according to an embodiment of the present invention; Figure 2This is a top view of the manifold machine according to an embodiment of the present invention; Figure 3 This is an isometric view of the manifold assembly machine in an embodiment of the present invention, excluding the frame. Figure 4 This is a top view of the manifold assembly machine in an embodiment of the present invention, excluding the frame. Figure 5 These are isometric views of two sets of feeding sub-mechanisms and buffer mechanisms in an embodiment of the present invention; Figure 6 These are top views of two sets of feeding sub-mechanisms and buffer mechanisms in an embodiment of the present invention; Figure 7 This is an isometric view of the cache mechanism in an embodiment of the present invention; Figure 8 This is a top view of the caching mechanism in an embodiment of the present invention; Figure 9 This is an isometric view of the handling and typesetting mechanism in an embodiment of the present invention; Figure 10 This is an isometric view of the battery string feeding mechanism, buffer mechanism, and handling and layout mechanism in an embodiment of the present invention; Figure 11 This is an isometric view of the first transport submechanism in an embodiment of the present invention; Figure 12 This is an isometric view of the transport component within the first transport submechanism in an embodiment of the present invention; Figure 13 This is an isometric view of the lifting assembly inside the first transport submechanism in an embodiment of the present invention; Figure 14 This is an isometric view of the first lifting sub-mechanism in an embodiment of the present invention; Figure 15 This is an isometric view of the first and second string-lifting mechanisms in an embodiment of the present invention; Figure 16 The above are axonometric views of the first welding sub-mechanism, the second welding sub-mechanism, and the third welding sub-mechanism in an embodiment of the present invention. Figure 17 This is a schematic diagram of the transportation mechanism in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 11. Loading area; 12. Layout area; 13. Welding area; 14. Buffer area; 141. Buffer sub-area; 2. Battery string feeding mechanism; 21. Feeding sub-mechanism; 3. Handling and typesetting mechanism; 31. Handling mechanism; 311. First moving component; 312. Second moving component; 313. Third moving component; 314. Rotating component; 315. First adsorption component; 4. Welding mechanism; 41. First material preparation sub-mechanism; 42. Second material preparation sub-mechanism; 43. First conveying sub-mechanism; 431. Lifting assembly; 4311. Fifth motor; 4312. Fifth mounting plate; 4313. Fifth lifting plate; 4314. Second adsorption assembly; 432. Conveying assembly; 4321. First conveying reciprocating assembly; 4322. Second conveying reciprocating assembly; 4323. First conveying frame; 4324. Second conveying frame; 44. 45. First string lifting sub-mechanism; 451. String lifting motor; 452. String lifting mounting frame; 453. String lifting sliding frame; 454. String lifting mounting plate; 455. String lifting adsorption assembly; 46. Second string lifting sub-mechanism; 47. First welding sub-mechanism; 471. First welding reciprocating assembly; 472. Welding lifting assembly; 473. Second welding reciprocating assembly; 474. Welding head; 48. Second welding sub-mechanism; 49. Third welding sub-mechanism; 5. Cache mechanism; 51. Cache board; 52. Cache synchronization band component; 6. Transportation mechanism; 61. First transportation mechanism; 611. Lateral transportation mechanism; 612. Longitudinal transportation mechanism; 613. Lifting drive component; 62. Second transportation mechanism; 7. Glass plate; 8. Battery string. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] This invention provides a photovoltaic cell string merging machine, such as... Figures 1-4 As shown, the system includes a frame 1 and a battery string feeding mechanism 2, a handling and layout mechanism 3, a welding mechanism 4, and a transport mechanism 6 mounted on the frame 1. The above mechanisms work together to arrange the battery strings 8 on the glass plate 7 and weld the busbars.

[0024] Specifically, such as Figure 2As shown, the frame 1 is sequentially arranged with a loading area 11, a layout area 12, and a welding area 13 along the first direction. The transport mechanism 6 passes through the loading area 11, the layout area 12, and the welding area 13 along the first direction, transporting the glass plate 7 sequentially to the loading area 11, the layout area 12, and the welding area 13. The glass plate 7 is transported to the layout area 12 by the transport mechanism 6, where battery strings 8 are placed and arranged to form battery strings. After the battery strings 8 are arranged on the glass plate 7, the transport mechanism 6 continues to transport the glass plate 7 to the welding area 13. In the welding area 13, busbar welding is performed on the front, middle, and rear ends of the battery strings on the glass plate 7 along the second direction. The first direction and the second direction are located on the same horizontal plane and are perpendicular to each other. Specifically, the battery string loading mechanism 2 is located above the transport mechanism 6 and is used to transport the battery strings 8 along the first direction. At least part of the battery string 8 loading portion is located in the loading area 11, thereby transporting the battery strings 8 from the outside to the loading area 11. String 8 refers to multiple battery strings connected by leads. The transport and layout mechanism 3 is used to transport the battery strings 8 from the loading area 11 to the glass plate 7 in the layout area 12. During the transport process, the transported battery strings 8 are placed and arranged on the glass plate 7 until the layout is completed to form a battery string group. The layout process is that the transport and layout mechanism 3 transports one battery string 8 at a time, and transports multiple battery strings 8 sequentially along the second direction. The welding mechanism 4 is located in the welding area 13. The battery string groups that have been arranged are transported to the welding area 13 through the glass plate 7. The welding mechanism 4 performs busbar welding on the front, middle and rear ends of the battery string groups on the glass plate 7 along the second direction. In summary, by using the battery string loading mechanism 2, the transport and layout mechanism 3, the welding mechanism 4 and the transport mechanism 6 in cooperation, the battery strings 8 can be automatically loaded, arranged on the glass plate 7 to form battery string groups and welded after the layout is completed. This saves time and effort and improves the welding efficiency of the busbars and battery strings 8.

[0025] Specifically, the battery string feeding mechanism 2 is used to transport the battery strings 8 and works in conjunction with the handling and layout mechanism 3 and the transport mechanism 6 to transport the glass plate 7 to the layout area 12. Then, the battery strings 8 are transported by the handling and layout mechanism 3 to the glass plate 7 in the layout area 12 for placement and layout. However, when the glass plate 7 in the layout area 12 has been laid out and transported to the welding area 13, and the new glass plate 7 has not yet been transported to the layout area 12 by the transport mechanism 6, the battery strings 8 at the output end of the battery string feeding mechanism 2 will accumulate, which will affect the battery strings 8 themselves and the next handling by the handling and layout mechanism 3. Moreover, if, during the gripping process, the battery string feeding mechanism 2 fails to transport the battery strings 8 to the feeding area 11 in time due to mechanical failure or other external factors, the transport efficiency of the battery strings 8 will decrease, and the layout efficiency of the battery strings 8 will also decrease. To solve the above problems, such as Figure 1As shown, a buffer area 14 is also provided in the feeding area 11, and a corresponding buffer mechanism 5 is provided in the buffer area 14, which can be used to buffer the battery string 8 and act as a feeding mechanism.

[0026] Specifically, when the battery string feeding mechanism 2 is normally transporting battery strings 8, it continuously transports the battery strings 8 to the feeding area 11. That is, when the transport and layout mechanism 3 needs to transport battery strings 8, battery strings 8 enter the feeding area 11 from the battery string feeding mechanism 2. The transport and layout mechanism 3 transports the battery strings 8 from the output end of the battery string feeding mechanism 2 to the glass plate 7 in the layout area 12. After the battery strings 8 have been arranged on the glass plate 7 in the layout area 12, before the transport and layout mechanism 3 continues to transport battery strings 8 to the next glass plate 7, the transport and layout mechanism 3 can transport the battery strings 8 that the battery string feeding mechanism 2 has continuously transported to its output end to the buffer mechanism 5 for buffering, so as to avoid the accumulation of battery strings 8 at the output end of the battery string feeding mechanism 2. After the next glass plate 7 is transported to the layout area 12, the transport and layout mechanism 3 normally transports battery strings 8 from the output end of the battery string feeding mechanism 2. Alternatively, when the battery string feeding mechanism... 2. When the battery string 8 is not transported normally, that is, when the transport and layout mechanism 3 needs to transport the battery string 8 from the output end of the battery string feeding mechanism 2, and the battery string feeding mechanism 2 does not have any battery string 8 entering the feeding area 11, the transport and layout mechanism 3 can transport the battery string 8 from the buffer mechanism 5 to ensure the transport and layout efficiency of the battery string 8. Furthermore, if the transport and layout mechanism 3 has completed transporting the battery string 8 from the buffer mechanism 5 or has completed the layout of the glass plate 7 through transporting the battery string 8 in the buffer mechanism 5, and the battery string feeding mechanism 2 still has no battery string 8 transported to the feeding area 11, then the machine should be stopped for maintenance of the battery string feeding mechanism 2 and the front transport mechanism 6 of the battery string feeding mechanism 2. Of course, during the period when the transport and layout mechanism 3 is transporting the battery string 8 from the buffer mechanism 5, the battery string feeding mechanism 2 transports the battery string 8 to the feeding area 11, then the transport and layout mechanism 3 will prioritize transporting the battery string 8 from the battery string feeding mechanism 2 until the transport and layout on the glass plate 7 is completed.

[0027] Specifically, in this embodiment, such as Figures 5-10As shown, the battery string loading mechanism 2 includes two sets of loading sub-mechanisms 21. The two sets of loading sub-mechanisms 21 transport battery strings 8 along the first direction, and the two sets of loading sub-mechanisms 21 are distributed at intervals along the second direction. The buffer area 14 and the buffer mechanism 5 located in the buffer area 14 are located between the output ends of the two sets of loading sub-mechanisms 21. Correspondingly, the transport and layout mechanism 3 includes two sets of transport mechanisms 31, which are distributed along the second direction. The glass plate 7 has two layout areas where battery strings 8 are placed, which are distributed along the second direction. In order to improve the transport and layout efficiency of the battery string groups on the glass plate 7, the two sets of transport mechanisms 31, the two sets of loading sub-mechanisms 21 and the two layout areas are correspondingly arranged to form two sets of transport and layout components, which are distributed along the second direction. This is equivalent to dividing the loading area 11 and the layout area 12 into a first area and a second area along the second direction. The first area has a set of loading sub-mechanisms 21 and transport mechanisms 31. 1. The two work together to transport the battery string 8 to the layout area in the first area. The second area has a set of feeding sub-mechanisms 21 and a transport mechanism 31. The two work together to transport the battery string 8 to the layout area in the second area, so that the two sets of transport mechanisms 31 can transport the battery string 8 at the same time and place the battery string 8 in the corresponding layout area, doubling the layout and transport efficiency of the battery string 8. The feeding sub-mechanism 21 transports one battery string 8 to the feeding area 11 at a time for the corresponding transport mechanism 31 to transport. The battery string 8 is placed in the layout area along the first direction. The transport mechanism 31 places the battery string 8 transported each time in the layout area along the second direction to complete the layout of the battery string 8 on the glass plate 7. In this embodiment, the battery string group formed on the glass plate 7 includes 12 battery strings 8 along the second direction, that is, each set of transport mechanisms 31 needs to transport 6 sets of battery strings 8.

[0028] Specifically, such as Figure 6 As shown, the buffer area 14 includes two buffer sub-areas 141, which are distributed along the second direction. The two buffer sub-areas 141 are adjacent to two sets of feeding sub-mechanisms 21, that is, the two buffer sub-areas 141 are set corresponding to the two sets of feeding sub-mechanisms 21. The buffer mechanism 5 includes two buffer plates 51 for storing battery strings 8. The two buffer plates 51 are located in the two buffer sub-areas 141 respectively. Under normal use, the battery strings 8 that need to be buffered at the output ends of the two sets of feeding sub-mechanisms 21 are transported by the two sets of conveying mechanisms 31 to the buffer plates 51 in the corresponding adjacent buffer sub-area 141 for storage. Thus, when the battery strings 8 in the buffer area 14 are retrieved, the conveying mechanism 31 can also transport the battery strings 8 from the buffer plates 51 in the corresponding buffer sub-area 141, ensuring the consistency of battery string 8 buffer transport. Moreover, the two sets of conveying mechanisms 31 can simultaneously transport the battery strings 8 from the buffer plates 51 in the two sets of buffer sub-areas 141, which can also ensure the battery plate transport efficiency of the buffer area 14.

[0029] Specifically, in this embodiment, the two sets of feeding sub-mechanisms 21, the two sets of conveying mechanisms 31, and the two sets of buffer plates 51 cooperate in several usage scenarios. First, during normal use, the two sets of feeding sub-mechanisms 21 simultaneously transport battery strings 8 to the feeding area 11. Each time one set of battery strings 8 is transported to the feeding area 11, the two sets of conveying mechanisms 31 correspondingly transport the battery strings 8 from the output end of the feeding mechanism 21 to the two layout areas of the glass plate 7 in the layout area 12. The buffer area 14 and the buffer plate 51 are not used. Second, if one set of feeding sub-mechanisms 21... The feeding rate of the battery string 8 in the feeding mechanism 21 slows down. During the corresponding transport mechanism 31's transport, although the feeding sub-mechanism 21 transports the battery string 8 to the feeding area 11, it does not completely reach the corresponding transport position of the battery string 8 (i.e., the output end of the feeding sub-mechanism 21). The transport mechanism 31 needs to wait for the battery string 8 to reach the transport position, causing the transport and layout speed of this group of transport mechanisms 31 to be slower than the other group. During this process, the other group of transport mechanisms 31 transports the battery string 8 normally, resulting in the final layout corresponding to the two layout areas on the glass plate 7, with one layout area being arranged... The process is complete, but another layout area still needs to place battery strings 8. The transport mechanism 31 that has completed the transport will move the normally transported loading sub-mechanism 21 to the buffer plate 51 in the adjacent buffer sub-area 141. The transport mechanism 31 that has not completed the transport will continue to transport battery strings 8 from the corresponding loading sub-mechanism 21 to the layout area until the layout of this area is completed. This is also a common usage scenario for this battery string 8 layout machine. The third scenario is that during the process of transporting battery strings 8 by the transport mechanism 31, the transport speed of one set of loading sub-mechanisms 21 slows down, so that... When the battery string 8 is to be transported, the first end of the battery string 8 has not yet reached the loading area 11. In order to ensure the transport speed of the transport mechanism 31, the transport mechanism 31 transports the battery string 8 from the buffer plate 51 in the buffer sub-area 141 adjacent to the loading sub-mechanism 21. When the loading sub-mechanism 21 transports the battery string 8 to its output end, the transport mechanism 31 prioritizes to pick up the battery string 8 at the output end of the loading sub-mechanism 21. That is, the transport mechanism 31 can cross-transport the battery string 8 between the buffer plate 51 and the output end of the loading sub-mechanism 21 to ensure transport efficiency.

[0030] It should be noted that the above three usage scenarios can occur in combination. This is because some battery strings 8 on the feeding sub-mechanism 21 may have low transportation efficiency. If the operator can repair them in time, the transportation speed of the remaining battery strings 8 can be guaranteed. If the operator cannot repair and restore them in time during the transportation of the feeding sub-mechanism 21, the machine can be stopped for repair after all the glass plates 7 being laid out or the batch of glass plates 7 have been laid out. The specific shutdown for repair should be based on the actual situation.

[0031] Specifically, such as Figures 5-6As shown, the buffer mechanism 5 also includes a buffer reciprocating assembly. Two sets of buffer plates 51 are distributed vertically. The buffer reciprocating assembly is connected to the ends of the buffer plates 51 to drive the two sets of buffer plates 51 to move alternately in the second direction, so that the two sets of buffer plates 51 exchange positions in the two buffer sub-areas 141. Specifically, when the battery string in the buffer plate 51 in one buffer sub-area 141 is full, the two sets of buffer plates 51 can move in the second direction under the drive of the buffer reciprocating assembly, so that the two sets of buffer plates 51 exchange positions, so that the other set of buffer plates 51 continues to buffer the battery string in this buffer sub-area 141 to ensure the stable buffering of the battery string. Or, when the battery string 8 in one set of buffer plates 51 has been transported, the two sets of buffer plates 51 exchange positions to transport the battery string 8 in the other set of buffer plates 51, ensuring the transport efficiency of the transport mechanism 31.

[0032] Specifically, such as Figure 7 As shown, the buffer reciprocating assembly includes two sets of buffer timing belt assemblies 52 and a buffer drive 53. The buffer timing belt assembly 52 consists of a driving wheel, a timing belt, and a driven wheel. The two sets of buffer timing belt assemblies 52 are located at both ends of the buffer plate 51 along the first direction. The ends of the two buffer plates 51 near the buffer timing belt are respectively connected to the timing belts on both sides of the same buffer timing belt assembly 52. ​​The buffer drive 53 is fixedly connected to the lower buffer plate 51. The buffer drive 53 can be set as a cylinder and installed on the frame 1. The output shaft of the cylinder is set along the second direction, which can drive the lower buffer plate 51 to move along the second direction. At the same time, due to the linkage effect of the timing belt, the upper buffer plate 51 can also move along the second direction, so that the two sets of buffer plates 51 can move alternately along the second direction, and the stability of the movement of the two sets of buffer plates 51 along the second direction can also be guaranteed.

[0033] Specifically, in this embodiment, in order to make the overall structure of the cache mechanism 5 more compact, the length of the upper cache plate 51 along the first direction is greater than the length of the lower cache plate 51 along the first direction. The lower cache plate 51 is disposed between the two sets of cache synchronization belt assemblies 52, and the two sets of cache synchronization belt assemblies 52 are located below the two ends of the upper cache plate 51 along the first direction and outside the two ends of the lower cache plate 51 along the first direction. This not only allows the cache synchronization belt assemblies 52 to be partially hidden, but also makes the installation positions of the two sets of cache plates 51 and the two sets of cache synchronization belt assemblies 52 more compact, avoiding the cache synchronization belt assemblies 52 not being disposed outside the upper cache plate 51, thereby increasing the length of the entire cache mechanism 5.

[0034] Specifically, such as Figures 9-10As shown, the conveying mechanism 31 includes a three-axis moving assembly, a rotating assembly 314, and a first adsorption assembly 315. The three-axis moving assembly is mounted on the frame 1. The rotating assembly 314 is located at the moving end of the three-axis moving assembly, allowing the rotating assembly 314 to move along a first direction, a second direction, and a vertical direction. The first adsorption assembly 315 is located at the rotating end of the rotating assembly 314, allowing the first adsorption assembly 315 to rotate horizontally. The first adsorption assembly 315 is used to adsorb the battery string 8. The battery string 8 moves with the three-axis moving assembly to the glass plate 7 at the typesetting area 12, and is then adsorbed by the first adsorption assembly. Component 315 places the battery string 8 on the glass plate 7 in the layout area; and the frame 1 at the feeding area 11 is equipped with a monitoring device, which can be a camera. The camera is used to capture the image of the battery string 8 being transported at the output end of the battery string feeding mechanism 2 to determine whether the battery string is set along the first direction. The rotating component 314 adjusts the horizontal position of the battery string 8 according to the above result, so that the three-axis moving component is adjusted to be set along the first direction before placing the battery string on the glass plate 7 in the layout area. The battery string 8 can be placed on the glass plate 7 in the layout area along the first direction. Of course, the above is the prior art.

[0035] Specifically, the three-axis moving assembly can be an existing component. In this embodiment, the three-axis moving assembly includes a first moving assembly 311, a second moving assembly 312, and a third moving assembly 313. The first moving assembly 311 is mounted on the frame 1. The second moving assembly 312 is mounted on the moving end of the first moving assembly 311. The first moving assembly 311 drives the second moving assembly 312 to move along a second direction. The third moving assembly 313 is mounted on the moving end of the second moving assembly 312. The second moving assembly 312 drives the third moving assembly 313 to move along a first direction. A rotating assembly 314 is mounted on the third moving assembly. In this embodiment, the moving end of component 313 specifically includes a slide rail and a motor arranged along a second direction. The slide rail is mounted on the frame 1, and a rack is provided on the side end of the slide rail. The output shaft of the motor is vertically downward and connected to a gear that meshes with the rack. The first motor is slidably mounted on the slide rail along the second direction via a first mounting bracket, while the second moving component 312 is mounted on the first mounting bracket. Thus, the motor drives the gear and rack to engage, causing the first mounting bracket and the second moving component 312 to move along the first direction. Preferably, the slide rails in the two sets of feeding sub-mechanisms 21 can be connected to form a single continuous line. The slide rail, the first motor, and the first mounting bracket are each provided in two sets. The two sets of slide rails are distributed along the first direction. The two ends of the second moving component 312 along the first direction are connected to the two sets of first mounting brackets. The two sets of first motors are connected by gears and racks to drive the first mounting brackets and the second moving component 312 to move along the second direction. The second moving component 312 includes a timing belt assembly. The third moving component 313 is mounted on the timing belt within the timing belt assembly and slides along the first direction on the second mounting bracket within the timing belt assembly, ensuring that the third moving component 313 can move steadily along the first direction under the drive of the timing belt assembly. The system is designed for fixed movement, wherein the third moving component 313 includes a combination of a third motor, a third mounting frame, and a third moving plate. The third mounting frame is mounted on the synchronous belt of the second moving component 312. The third motor drives the third moving plate to slide vertically along the third mounting frame. The rotating component 314 is mounted on the third moving plate. The rotating component 314 can be configured as a fourth motor. The output shaft of the fourth motor faces downward and is connected to the first adsorption component 315. The first adsorption component 315 includes an adsorption mounting frame and multiple suction cup components disposed on the adsorption mounting frame and distributed along a first direction. The battery string 8 is adsorbed through the multiple suction cup components.

[0036] Specifically, a correction component is also provided in the typesetting area 12. The correction component includes a correction timing belt assembly and two correction rods connected to the timing belts on both sides of the correction timing belt assembly. The two correction rods and the correction timing belt assembly are both set along the second direction. The correction timing belt assembly drives the two correction rods to correct the glass plate 7 located in the typesetting area 12 before typesetting, so that it is set along the first direction. The monitoring component works in conjunction with the three-axis moving assembly and the rotating assembly 314. The three-axis moving assembly moves the battery string 8 to the typesetting area on the glass plate 7. The rotating assembly 314 adjusts the orientation of the battery string 8 so that the battery string 8 is placed along the first direction and parallel to the side of the glass plate 7.

[0037] Specifically, such as Figure 3 As shown, the welding mechanism 4 includes a string lifting sub-mechanism, a busbar preparation sub-mechanism, a busbar transport sub-mechanism, and a welding sub-mechanism mounted on the frame 1. The string lifting sub-mechanism is located above the transport mechanism 6, and its moving end lifts the battery string 8 on the glass plate 7 to a certain height. The busbar preparation sub-mechanism is located at the end of the frame 1 along the second direction and is used to prepare busbars adapted to the length of the battery string 8. The transport end of the busbar transport sub-mechanism transports the busbars from the busbar preparation sub-mechanism to below the battery string 8 at a certain height, thus making the busbars... The busbars abut against the leads of the battery string 8, and the transport end of the busbar transport sub-mechanism has three points to transport the three sets of busbars to the front, middle and rear of the battery string group along the second direction, respectively. Each set of busbars may include multiple busbars. The welding end of the welding sub-mechanism moves to the point where the busbar abuts against the leads of the battery string 8 and welds the two together. In summary, the string lifting sub-mechanism, the busbar preparation sub-mechanism, the busbar transport sub-mechanism and the welding sub-mechanism cooperate to complete the automated welding of the front, middle and rear of the battery string group with the busbars, thereby improving welding efficiency.

[0038] Specifically, such as Figure 3As shown, the busbar preparation submechanism includes a first preparation submechanism 41 and a second preparation submechanism 42. The first preparation submechanism 41 and the second preparation submechanism 42 are located at the two ends of the frame 1 along the second direction in the welding area 13, respectively. The first preparation submechanism 41 is used to prepare materials for two sets of busbars simultaneously, and the second preparation submechanism 42 is used to prepare materials for one set of busbars. The busbar transport submechanism specifically includes a first transport submechanism 43 and a second transport submechanism 44. The first transport submechanism 43 and the second transport submechanism 44 transport the busbars at the first preparation submechanism 41 and the second preparation submechanism 42, respectively, i.e., the first transport submechanism. The first sub-mechanism 43 can transport two sets of busbars, and the second transport sub-mechanism 44 can transport one set of busbars. In this embodiment, the lifting sub-mechanism and the welding sub-mechanism are located between the first material preparation sub-mechanism 41 and the second material preparation sub-mechanism 42, so that the first material preparation sub-mechanism 41 and the first transport sub-mechanism 43 are correspondingly arranged, and the second material preparation sub-mechanism 42 and the second transport sub-mechanism 44 are correspondingly arranged. They prepare and feed the busbars from both ends of the frame 1 along the second direction, thereby accelerating the feeding rate of the three sets of busbars and making the structure at both ends of the welding area 13 symmetrically distributed, avoiding excessive weight on one side of the frame 1.

[0039] Specifically, both the first material preparation sub-mechanism 41 and the second material preparation sub-mechanism 42 can adopt the existing busbar material preparation mechanism. The difference between the first material preparation sub-mechanism 41 and the second material preparation sub-mechanism 42 is that the second material preparation sub-mechanism 42 needs to prepare materials for two sets of busbars and requires two sets of material preparation modules to be set up in the mechanism, while the second material preparation sub-mechanism 42 only needs to prepare materials for one set of busbars and only needs to prepare one set of material preparation modules.

[0040] Specifically in this embodiment, such as Figures 11-13As shown, the first conveying sub-mechanism 43 specifically includes a lifting assembly 431 and a conveying assembly 432; the lifting assembly 431 specifically includes a fifth motor 4311, a fifth mounting plate 4312, a fifth lifting plate 4313, and a second adsorption assembly 4314. The fifth mounting plate 4312 is mounted on the frame 1, the fifth motor 4311 is mounted on the fifth mounting plate 4312, and the fifth motor 4311 drives the second lifting plate to slide on the fifth mounting plate 4312. The second adsorption assembly 4314 is mounted on the fifth lifting plate 4313. The lower end is designed so that the second adsorption component 4314 can move vertically. The second adsorption component 4314 is located above the material preparation manifold of the first material preparation submechanism 41. The second adsorption component 4314 includes two rows of suction cups, which can be used to directly adsorb the two sets of manifolds and rise under the drive of the fifth motor 4311. The conveying component 432 specifically includes a first conveying reciprocating component 4321, a second conveying reciprocating component 4322, a first conveying frame 4323, and a second conveying frame 4324. The first conveying reciprocating component 432... The first and second transport reciprocating assemblies 4322 are each provided in two sets, distributed along the first direction. The first transport frame 4323 and the second transport frame 4324 are arranged along the first direction and distributed along the second direction. The first transport frame 4323 is connected between the two sets of the first transport reciprocating assemblies 4321, and the second transport frame 4324 is connected between the second transport reciprocating assemblies 4322. Thus, the first transport frame 4323 and the second transport frame 4324 can be driven by the first transport reciprocating assembly 4321 and the second transport reciprocating assembly 4322, respectively. The components move side-by-side to below the second adsorption component 4314. The second adsorption component 4314 can simultaneously place two sets of manifolds onto the first transport frame 4323 and the second transport frame 4324. Then, the first transport frame 4323 and the second transport frame 4324 move to the corresponding welding positions under the drive of the first transport reciprocating component 4321 and the second transport reciprocating component 4322, respectively. Both the first transport frame 4323 and the second transport frame 4324 are equipped with suction cups along the first direction to adsorb the manifolds and prevent displacement during transport. Specifically, the second transport mechanism 31 also includes a lifting component 431 and a transport component 432. The difference between the second and first transport mechanisms 31 is that the transport component 432 only includes the first transport reciprocating component 4321 and the first transport frame 4323. The first transport reciprocating component 4321 and the first transport frame 4323 cooperate with the lifting component 431 to transport one set of manifolds.

[0041] Specifically, such as Figures 14-15As shown, the string lifting sub-mechanism includes a first string lifting sub-mechanism 45 and a second string lifting sub-mechanism 46. The first string lifting sub-mechanism 45 and the second string lifting sub-mechanism 46 are respectively used to lift the battery strings 8 in the two rows of areas on the glass plate 7 to a certain height. The welding sub-mechanism includes a first welding sub-mechanism 47, a second welding sub-mechanism 48 and a third welding sub-mechanism 49 distributed along the second direction. The first welding sub-mechanism 47, the second welding sub-mechanism 48 and the third welding sub-mechanism 49 are respectively used to weld three sets of busbars to the front end, middle and rear end of the battery string group along the second direction. The first welding sub-mechanism 47, the first string lifting sub-mechanism 45, the second welding sub-mechanism 48, the second string lifting sub-mechanism 46 and the third welding sub-mechanism 49 are distributed along the second direction, which can reasonably set the position of the above sub-mechanisms. When the sub-mechanisms are working, they do not need to avoid each other, thus improving the efficiency of string lifting and welding.

[0042] Specifically, both the first string-lifting sub-mechanism 45 and the second string-lifting sub-mechanism 46 include a string-lifting motor 451, a string-lifting mounting frame 452, a string-lifting sliding frame 453, and a string-lifting assembly. The string-lifting mounting frame 452 is mounted on the frame 1, and the string-lifting motor 451 is mounted on the string-lifting mounting frame 452. The output shaft of the string-lifting motor 451 is connected to the string-lifting sliding frame 453, and the lower end of the string-lifting sliding frame 453 is connected to the string-lifting assembly. The string-lifting motor 451 can drive the string-lifting sliding frame 453 and the string-lifting assembly to move in the vertical direction. Specifically, the string-lifting assembly includes multiple string-lifting sub-assemblies distributed along the first direction. The string-lifting assembly includes a string-lifting mounting plate 45. 4. The string lifting adsorption component 455 is configured with multiple suction cups. The string lifting mounting plate 454 is arranged along the second direction. Multiple suction cups are evenly distributed on the string lifting mounting plate 454 along the second direction. Thus, multiple string lifting sub-components are distributed with multiple suction cups along the first and second directions. They simultaneously pick up multiple battery strings 8 in the layout area on the lower glass plate 7 and transport them vertically. It should be noted that the first string lifting sub-mechanism 45 and the second string lifting sub-mechanism 46 respectively pick up multiple battery strings 8 in a layout area and jointly transport the battery strings 8 on the glass plate 7 vertically to a certain height surface.

[0043] Specifically, such as Figure 16As shown, the first welding sub-mechanism 47 and the third welding sub-mechanism 49 are located outside the first string lifting sub-mechanism 45 and the second string lifting sub-mechanism 46, respectively, and have the same structure. Specifically, they include a welding three-axis moving assembly and a welding head 474. The welding head 474 is installed at the output end of the welding three-axis moving assembly, thereby driving the welding head 474 to move along the first direction, the second direction, and the vertical direction, so as to facilitate the welding head 474 to weld the busbar and the end lead of the battery string 8. The welding three-axis moving assembly can be existing technology, but in this embodiment, since the welding head 474 needs to weld along the first direction and form multiple welding points, during the welding process, the welding head 474 only needs to move along the first direction. The welding only needs to move in the first direction; other components within the welding three-axis moving assembly do not need to move. Therefore, the welding three-axis moving assembly in this embodiment includes a first welding reciprocating assembly 471, a welding lifting assembly 472, and a second welding reciprocating assembly 473. The first welding reciprocating assembly 471 includes a welding timing belt assembly and a welding transport frame. Two sets of welding timing belt assemblies are arranged along the second direction and distributed along the first direction. The welding transport frame is mounted on the timing belts of the two sets of welding timing belt assemblies. The welding lifting assembly 472 is mounted on the welding transport frame. The welding timing belt assembly drives the welding transport frame and the welding lifting assembly 473 to move along the second direction. The 72nd component includes a first welding motor, a welding mounting frame, and a welding sliding frame. The welding mounting frame is mounted on a welding transport frame. A second welding reciprocating assembly 473 is mounted on the lower end of the welding sliding frame. The first welding motor drives the welding sliding frame and the second welding reciprocating assembly 473 to reciprocate vertically. The second welding reciprocating assembly 473 includes a second welding motor, a welding sliding plate, a welding gear, and a welding rack. The welding rack is mounted on the lower end of the welding sliding frame along a first direction. The second welding motor is mounted on the welding sliding plate, which slides along the welding sliding frame along the first direction. The welding gear is connected to the output shaft of the second welding motor, thereby enabling the second welding motor to reciprocate vertically. The motor drives the welding sliding plate and welding head 474 to reciprocate along the first direction through the meshing of the welding gear and welding rack. The second welding sub-mechanism 48 is located between the first string lifting sub-mechanism 45 and the second string lifting sub-mechanism 46. It is used to weld the end leads of the two battery strings 8 with close ends in the two layout areas to the busbar. Therefore, the second welding sub-mechanism 48 only includes the welding lifting assembly 472, the second welding reciprocating assembly 473 and the welding head 474 compared with the first welding sub-mechanism 47. The welding lifting assembly 472 drives the second welding reciprocating assembly 473 to move in the vertical direction, and the second welding reciprocating assembly 473 drives the welding head 474 to reciprocate along the first direction.

[0044] Specifically, such as Figure 17As shown, the transport mechanism 6 includes a first transport mechanism 61 and a second transport mechanism 62 for transporting glass plates 7. The first transport mechanism 61 is located in the loading area 11, and its output end is located at the input end of the second transport mechanism 62. It is used to transport the external glass plate 7 from the loading area 11 to the second transport mechanism 62. The second transport mechanism 62 passes through the layout area 12 and the welding area 13, and is used to transport the glass plate 7 from the layout area 12 to the welding area 13. After the battery string assembly on the glass plate 7 is welded in the welding area 13, it is transported out by the second transport mechanism 62. Specifically, the first transport mechanism... Structure 61 includes a transverse transport mechanism 611 for transporting glass plate 7 along a first direction and a longitudinal transport mechanism 612 for transporting glass plate 7 along a second direction. The frame 1 has an inlet, and the input end of the longitudinal transport mechanism 612 is located at the inlet. The longitudinal transport mechanism 612 transports the glass plate 7 along the second direction to the transverse transport mechanism 611, and the transverse transport mechanism 611 transports the glass plate 7 to the second transport mechanism 62. In the prior art, the transverse transport mechanism 611 and the longitudinal transport mechanism 612 are respectively arranged to form an L-shaped structure. The transverse transport mechanism 611 is arranged along the first direction and transports the glass plate 7. Glass plate 7 is used for the main transport direction, while the longitudinal transport mechanism 612 protrudes from the frame 1, making the overall volume of the first transport mechanism 61 relatively large. To reduce the overall volume of the first transport mechanism 61, in this embodiment, a lifting drive component 613 is also connected to the transverse transport mechanism 611, so that the transverse transport mechanism 611 can move vertically as a whole. This allows the transport surfaces of the transverse transport mechanism 611 and the longitudinal transport mechanism 612 to be at different heights, thus allowing the transverse transport mechanism 611 and the longitudinal transport mechanism 612 to be interwoven. Inserted into the installation gap of the longitudinal transport mechanism 612, the longitudinal transport mechanism 612 first feeds the glass plate 7 along the second direction and transports it to the transverse transport mechanism 611. The transverse transport mechanism 611 is raised and lowered as a whole by the lifting drive component 613. The transport surface of the transverse transport mechanism 611 will abut from top to bottom and drive the glass plate 7 to rise to the same height as the transport surface of the second transport mechanism 62. Then the transverse transport mechanism 611 can stably transport the glass plate 7 onto the second transport mechanism 62. It should be noted that the transport surface of the longitudinal transport mechanism 612 is lower than the transport surface of the second transport mechanism 62. Specifically, the longitudinal transport mechanism 612 includes multiple longitudinal synchronous belt assemblies arranged along the second direction, and the multiple longitudinal synchronous belt assemblies are distributed at intervals along the first direction. The transverse transport mechanism 611 includes multiple transverse synchronous belt assemblies arranged along the first direction, and the multiple transverse synchronous belt assemblies are distributed along the second direction. The transverse synchronous belt assemblies are arranged between two adjacent longitudinal synchronous belt assemblies. Each longitudinal synchronous belt assembly is connected to a lifting drive 613, which can be a cylinder, thereby completing the interleaving arrangement of the transverse transport mechanism 611 and the longitudinal transport mechanism 612.Specifically, the second transport mechanism 62 includes multiple synchronous belt assemblies arranged along the first direction.

[0045] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A photovoltaic cell string assembly machine, characterized in that, It includes a frame and a battery string loading mechanism, a handling and arrangement mechanism, a welding mechanism and a transportation mechanism mounted on the frame; The frame is provided with a feeding area, a layout area and a welding area in sequence along the first direction; The transport mechanism passes through the loading area, the layout area and the welding area along the first direction, and is used to transport the outer glass plate sequentially to the loading area, the layout area and the welding area; The battery string loading mechanism is located above the transport mechanism, and at least its output end is located in the loading area, for transporting battery strings to the loading area along the first direction; The transport and layout mechanism is used to transport the battery strings in the loading area to the glass plate in the layout area and arrange them to form a battery string group. The welding mechanism is located in the welding area and is used to weld busbars onto the battery string after the layout is completed. The feeding area also includes a buffer area, which is equipped with a buffer mechanism for buffering battery strings; When the battery string feeding mechanism is normally transporting battery strings, the transport and layout mechanism transports the battery strings from the output end of the battery string feeding mechanism to the glass plate in the layout area. After the battery strings in the layout area have been arranged on the glass plate, the transport and layout mechanism transports the battery strings from the output end of the battery string feeding mechanism to the buffer mechanism. Alternatively, if the battery string feeding mechanism fails to transport the battery strings normally, the transport and layout mechanism will transport the battery strings from the buffer mechanism to the glass plate in the layout area. The battery string feeding mechanism includes two sets of feeding sub-mechanisms. Both sets of feeding sub-mechanisms transport battery strings along a first direction and are distributed along a second direction. The first direction and the second direction are located on the same horizontal plane and are perpendicular to each other. The transport and layout mechanism includes two sets of transport mechanisms. The glass plate is distributed along the second direction with two layout areas. The two sets of transport mechanisms, the two sets of feeding sub-mechanisms and the two layout areas are correspondingly set and used in conjunction. The buffer area has two buffer sub-areas distributed along the second direction. The buffer mechanism includes a buffer plate, and the buffer plate is provided in two sets, which are correspondingly arranged in the two buffer sub-areas. The two buffer sub-areas are respectively arranged with the two sets of feeding sub-mechanisms. When the two sets of feeding sub-mechanisms are transporting battery strings normally, the two sets of conveying mechanisms buffer the battery strings at the output end of the two sets of feeding sub-mechanisms to the buffer plates in the two buffer sub-areas according to the battery string layout of the two layout areas. Alternatively, if one or two of the feeding sub-mechanisms fail to transport the battery strings normally, the corresponding transport mechanism will transport the battery strings in the buffer board to the layout area; The caching mechanism also includes a cache reciprocating component, and the two sets of cache plates are distributed along the vertical direction; The reciprocating buffer assembly is connected to the ends of both sets of buffer boards to drive the two sets of buffer boards to move alternately along the second direction, so that the two sets of buffer boards exchange positions in the two buffer sub-regions.

2. The photovoltaic cell string assemblies according to claim 1, characterized in that, The cache reciprocating component includes two sets of cache synchronization band components and a cache driver; the two sets of cache synchronization band components are respectively located at both ends of the cache board along a first direction. The ends of the two sets of buffer boards near the buffer synchronization belt assembly are respectively connected to the synchronization belts on both sides of the same buffer synchronization belt assembly. The buffer drive is connected to the lower buffer board to push the lower buffer board to move in the second direction.

3. The photovoltaic cell string assembly machine according to claim 2, characterized in that, The length of the upper cache board along the first direction is greater than the length of the lower cache board along the first direction. The lower cache board is located between the two sets of cache synchronization band assemblies, and the two sets of cache synchronization band assemblies are located below the two ends of the upper cache board along the first direction.

4. The photovoltaic cell string assemblies according to claim 1, characterized in that, Both sets of the conveying mechanisms include a three-axis moving assembly, a rotating assembly, and a first adsorption assembly; The three-axis moving assembly for handling is mounted on the frame, and the rotating assembly is mounted on the moving end of the three-axis moving assembly for handling, so that the rotating assembly can move along the first direction, the second direction and the vertical direction; The first adsorption component is disposed at the rotating end of the rotating component, so that the first adsorption component rotates in the horizontal direction, and the first adsorption component is used to adsorb the battery string. Furthermore, a monitoring device is provided on the frame in the typesetting area to cooperate with the rotating assembly so that the conveying mechanism places the battery string on the glass plate along the first direction.

5. The photovoltaic cell string assemblies according to claim 1, characterized in that, The welding mechanism includes a string lifting sub-mechanism, a busbar material preparation sub-mechanism, a busbar handling sub-mechanism, and a welding sub-mechanism mounted on the frame; The battery string lifting mechanism is located above the transport mechanism, and its moving end lifts the battery string on the glass plate to a certain height. The busbar preparation sub-mechanism is located at the end of the frame along the second direction and is used to prepare busbars adapted to the length of the battery string; The transport end of the busbar transport sub-mechanism transports the busbars on the busbar preparation sub-mechanism to the bottom of the battery string at a certain height, and makes the busbars abut against the leads on the battery string. The transport end of the busbar transport sub-mechanism has three locations, which transport the three sets of busbars at the busbar preparation sub-mechanism to the front end, middle and rear end of the battery string along the second direction, respectively. The welding end of the welding sub-mechanism moves to the point where the busbar and the lead wire of the battery string meet, and welds the two together.

6. The photovoltaic cell string assemblies according to claim 5, characterized in that, The busbar material preparation sub-mechanism includes a first material preparation sub-mechanism and a second material preparation sub-mechanism, which are located at the two ends of the frame along the second direction, respectively. The busbar transport submechanism includes a first transport submechanism and a second transport submechanism, which transport the busbars at the first material preparation submechanism and the second material preparation submechanism respectively. The lifting sub-mechanism and the welding sub-mechanism are located between the first material preparation sub-mechanism and the second material preparation sub-mechanism.

7. The photovoltaic cell string assemblies according to claim 6, characterized in that, The string lifting mechanism includes a first string lifting mechanism and a second string lifting mechanism, which are respectively used to lift the battery strings in two rows of areas on the glass plate to a certain height. The welding sub-mechanism includes a first welding sub-mechanism, a second welding sub-mechanism, and a third welding sub-mechanism distributed along the second direction, which are respectively used to weld three sets of busbars to the front end, middle and rear end of the battery string along the second direction; The first welding sub-mechanism, the first string-lifting sub-mechanism, the second welding sub-mechanism, the second string-lifting sub-mechanism, and the third welding sub-mechanism are distributed sequentially along the second direction.

8. The photovoltaic cell string assemblies according to claim 1, characterized in that, The transportation mechanism includes a first transportation mechanism and a second transportation mechanism for transporting glass plates; The first transport mechanism is located in the loading area, the second transport mechanism passes through the layout area and the welding area, and the output end of the first transport mechanism is located at the input end of the second transport mechanism; The first transport mechanism includes a transverse transport mechanism for transporting glass plates along a first direction and a longitudinal transport mechanism for transporting glass plates along a second direction. The frame is provided with a plate inlet, and the input end of the longitudinal transport mechanism is located at the plate inlet. The lateral transport mechanism is also connected to a lifting drive component, so that the entire lateral transport mechanism can move in the vertical direction. The lateral transport mechanism and the longitudinal transport mechanism are interspersed within the loading area.

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