An electrode connection metal strip welding mechanism and method

Abstract

This invention discloses an electrode connection metal strip welding mechanism and method, applied to the welding of solar cells and metal strips. The welding mechanism includes a conveying mechanism, a first welding mechanism, and a second welding mechanism. The conveying mechanism includes symmetrically distributed conveying rings, each with multiple positioning blocks. Each positioning block has a positioning plate that can move up and down. A rotatable conveying frame is provided on one side of each positioning plate. The first welding mechanism includes a first welding plate, fixedly positioned above the input end of the conveying rings, and equipped with multiple reciprocating first welding heads. The second welding mechanism includes a second welding plate, reciprocatingly positioned above the output end of the conveying rings, and equipped with multiple reciprocating second welding heads. A stop block is also provided at the output end of the conveying rings. This method replaces manual welding, effectively improving overall production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of solar panel manufacturing and processing technology, specifically relating to a welding mechanism and method for electrode connection metal strips. Background Technology

[0002] Solar panels are devices that directly convert solar energy into electrical energy using the photovoltaic effect, which occurs in semiconductor materials under sunlight. It is one of the most direct methods of utilizing solar energy, and most panels are made of silicon. Since electricity can be generated wherever there is sunlight, solar photovoltaic power generation is suitable for a wide range of applications, from large power plants to small portable chargers. However, despite the vast reserves of solar energy, the electricity generated from solar energy currently accounts for a relatively small proportion of global energy consumption, approximately 0.16%. Therefore, actively developing low-cost, high-efficiency solar panel materials and improving photoelectric conversion efficiency will be beneficial in addressing the global energy and environmental crisis, and has significant practical value and significance.

[0003] In the production process of solar panels, most solar panels are formed by welding multiple long strips of solar cells together with multiple metal strips. The principle is not difficult. Multiple small solar cells are connected in series with electrodes by welding metal strips to form a whole solar panel.

[0004] During the production process, the inventor discovered that existing small-scale solar panel production often relies on manual welding due to the inability to purchase large-scale integrated automated production lines. This involves welding multiple metal strips of the same size onto a solar cell, flipping the welded cell over, and then placing subsequent welded cells next to the previous one, with the metal strips on top of the previous cell. The metal strips between adjacent cells are then welded together. This manual process is tedious and inefficient, while large-scale automated production lines are too costly. Therefore, the inventor aimed to develop a semi-automated device to solve the problem of low production efficiency caused by repeated manual welding, thereby improving production efficiency and reducing purchase costs.

[0005] Therefore, based on the above, and drawing on years of experience in design, development and actual manufacturing in the relevant industry, the inventor has researched and improved the existing structure and its shortcomings, and provided an electrode connection metal strip welding mechanism and method to achieve a more practical purpose. Summary of the Invention

[0006] In view of at least one problem in the prior art, one object of the present invention is to provide an electrode connection metal strip welding mechanism and method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An electrode connection metal strip welding mechanism is disclosed for welding solar cells to metal strips. The welding mechanism includes a conveying mechanism for transporting the solar cells, a first welding mechanism for welding the metal strips onto the solar cells, and a second welding mechanism for welding adjacent solar cells. The conveying mechanism includes symmetrically distributed and synchronously rotating conveying rings. Each conveying ring is provided with multiple fixedly connected positioning blocks. Each positioning block is provided with a vertically movable positioning plate. Each positioning plate has a rotatable conveying frame on one side for engaging the solar cells. The first welding mechanism includes a first welding plate and a storage box. The first welding plate is fixedly mounted... The first welding plate is positioned above the input end of the conveying ring and has multiple reciprocating first welding heads. The storage box is located on one side of the first welding plate, and the metal strip is placed inside the storage box. The storage box has a rotatable first conveying wheel for conveying the metal strip to the area below the first welding heads, and the storage box also has a cutting blade that can move up and down for cutting the metal strip. The second welding mechanism includes a second welding plate, which is reciprocatingly positioned above the output end of the conveying ring and has multiple reciprocating second welding heads inside. The output end of the conveying ring also has a retractable stop for selectively blocking solar cells.

[0009] Preferably, the conveying mechanism further includes symmetrically distributed conveying plates, each conveying ring is provided with matching and symmetrically distributed conveying rollers, the conveying rollers are rotatably connected to the conveying plates, the first welding plate and the storage box are both fixedly installed on the conveying plates, a feeding plate is also provided between the conveying rings, the feeding plate is provided with feeding shafts at both ends, the feeding shafts are rotatably connected to the conveying plates, the bottom of the feeding plate is provided with a support block for supporting the feeding plate to keep it horizontal, and when the feeding plate is horizontal, the upper surface is flush with the lower inner wall of the conveying frame.

[0010] Preferably, the storage box has an L-shaped guide plate fixedly connected to the bottom, a rotatable first conveying shaft above the guide plate, a first conveying wheel fixedly mounted on the first conveying shaft, a cutting blade disposed between the first conveying wheel and the first welding plate, and a first hydraulic rod fixedly connected to the bottom plate of the storage box, the bottom of the first hydraulic rod being fixedly connected to the cutting blade.

[0011] Preferably, each of the conveyor plates is provided with a fixedly connected second hydraulic rod on its side wall, and the extension end of the second hydraulic rod is fixedly connected to the second welding plate.

[0012] Preferably, the first welding plate has a first welding groove, and the first welding groove has a first adjusting plate that is slidably connected to it. The first adjusting plate is fixedly connected to the first welding head. The first welding groove has a third hydraulic rod that is fixedly connected to it and is connected to the first adjusting plate. The second welding plate has a second welding groove, and the second welding groove has a second adjusting plate that is slidably connected to it. The second adjusting plate is fixedly connected to the second welding head. The second welding groove has a fourth hydraulic rod that is fixedly connected to it and is connected to the second adjusting plate.

[0013] Preferably, the conveying plate located at the conveying end of the conveying ring is provided with a fixedly connected support base, and the support base is provided with a plurality of fixedly connected support bottom plates. The upper surface of the support bottom plate is flush with the lower inner wall of the conveying frame, and the support bottom plate is provided with an adjustment groove. The stop block is slidably connected to the adjustment groove, and a fifth hydraulic rod for driving the stop block to move up and down is provided in the adjustment groove.

[0014] Preferably, a rotatable second conveying shaft is provided above the conveying ring on one side of the stop block. The second conveying shaft is provided with a plurality of fixedly connected second conveying wheels for conveying solar cells outward. Two third conveying shafts that can rotate synchronously are provided outside the conveying ring. Each third conveying shaft is provided with a plurality of fixedly connected third conveying wheels, and a placement platform for placing the welded solar cells is provided outside the third conveying shaft.

[0015] Preferably, the positioning block is provided with a positioning rod that can move up and down. The upper end of the positioning rod is connected to the bottom plate of the positioning plate. A positioning shaft is fixedly connected to one side of the conveying frame. The positioning shaft is rotatably connected to the positioning plate. A positioning gear is rotatably connected to the outside of the positioning shaft. A fixedly connected L-shaped limiting frame is provided on the positioning plate. A slidingly connected limiting plate is provided inside the limiting frame. A reset spring is provided inside the limiting frame to drive the limiting plate to automatically return to its initial position. The limiting plate slides through the positioning block. A positioning rack that meshes with the positioning gear is provided on one side of the limiting plate. A fixedly connected check block is provided at the bottom of the limiting plate.

[0016] Preferably, the positioning block has a hollow adjustment cavity, a rotatable synchronous shaft is provided inside the adjustment cavity, a first bevel gear is provided on the outside of the synchronous shaft, the positioning rod slides through the side wall of the adjustment cavity, and a reciprocating thread is provided on the outside of the positioning rod, an adjustment ring plate is provided on the side wall of the adjustment cavity and is rotatably connected and matched with the reciprocating thread, the positioning rod is connected to the adjustment ring plate through the reciprocating thread, and a second bevel gear is provided on the outside of the adjustment ring plate that meshes with the first bevel gear.

[0017] A method for welding electrode-connected metal strips includes the following steps:

[0018] S1 feeds the solar cell between two conveyor frames on one side of the input end of the conveyor ring, so that the solar cell is engaged in the conveyor frame. Then, by rotating the conveyor ring, the solar cell is moved to the position directly below the first welding plate.

[0019] S2 then uses the rotation of the first conveying wheel to synchronously convey multiple metal strips to the top of the solar cell, and then uses the reciprocating motion of the first welding head to weld the metal strips onto the solar cell;

[0020] After S3 welding is completed, the cutting blade is controlled to cut and separate the metal strip. Then, the conveyor ring is controlled to move and move the welded solar cell toward the second welding plate. At the same time, the next conveyor frame containing the solar cell moves again to the bottom of the first welding plate.

[0021] Before the first solar cell moves to the stop, the positioning plate moves upward. When the positioning plate reaches its highest point, the conveyor frame rotates, causing the solar cell to automatically flip over. Then, the solar cell moves to the stop along with the conveyor ring.

[0022] Before each subsequent solar cell moves to the previous one, S5 controls the positioning plate to move upward. When the positioning plate reaches its highest point, it causes the conveyor frame to rotate, causing the solar cells to automatically flip over and the metal strip to automatically be positioned above the previous solar cell. The first solar cell is blocked by the stop block, and the solar cell is slidably engaged with the conveyor frame. Therefore, as the conveyor ring moves, the solar cell will separate from the corresponding conveyor frame, and multiple solar cells will be sequentially pressed together. At the same time, the metal strip on the next solar cell will automatically be positioned on the previous solar cell.

[0023] S6 then controls the second welding plate to move a certain displacement in sequence, so that the second welding head moves to the top of the corresponding metal strip in sequence. When the second welding head moves to the top of the metal strip, the second welding head is controlled to reciprocate, so that the second welding head welds the metal strip to the corresponding solar cell.

[0024] S7 Once the corresponding number of solar cells have been welded, the control block retracts, allowing the welded solar cells to be removed.

[0025] Compared with the prior art, the present invention has the following technical effects:

[0026] By utilizing a conveying mechanism, individual solar cells can be automatically and sequentially transported to the first and second welding mechanisms, achieving automatic transport of solar cells. The combination of the vertical movement of the positioning plate and the rotatable conveying frame enables the solar cells to automatically flip after welding in the first welding mechanism while maintaining the conveying direction of the solar cells. The addition of a stop block allows multiple solar cells to be squeezed together by blocking, thus enabling adjacent solar cells to be welded better in the second welding mechanism.

[0027] The first welding mechanism can automatically weld metal strips to solar cells, while the second welding mechanism can automatically weld metal to adjacent solar cells, replacing manual welding and effectively improving overall production efficiency.

[0028] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope as a result.

[0029] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0030] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram provided for the present invention.

[0033] Figure 2 A schematic diagram of the three-dimensional connection structure of the conveying ring, the first welding plate, and the second welding plate provided by the present invention.

[0034] Figure 3 Provided by the present invention Figure 2 Enlarged view of point A in the middle.

[0035] Figure 4A three-dimensional structural diagram of the supporting base plate, the stop block, and the first conveying shaft provided by the present invention.

[0036] Figure 5 A three-dimensional structural diagram of the first welding plate provided by the present invention.

[0037] Figure 6 A three-dimensional structural diagram of the second welding plate provided by the present invention.

[0038] Figure 7 This is a schematic diagram of the cross-sectional connection structure of the groove and slider provided by the present invention.

[0039] Figure 8 A three-dimensional structural diagram of the positioning block, conveying ring, and conveying rack provided by the present invention.

[0040] Figure 9 A three-dimensional structural diagram of the positioning block, conveying gear, and conveying ring provided by the present invention.

[0041] Figure 10 This is a schematic diagram of the three-dimensional connection structure of the conveying rack, conveying roller and extrusion block provided by the present invention.

[0042] Figure 11 This is a three-dimensional cross-sectional view of the positioning rod after it has risen, as provided by the present invention.

[0043] Figure 12 This is a cross-sectional structural diagram of the positioning shaft, positioning gear, and limiting plate provided by the present invention.

[0044] Figure 13 A schematic diagram of the cross-sectional connection structure of the check rod, check teeth, and first rotating shaft provided by the present invention.

[0045] Explanation of the numbers in the diagram: 1. Conveyor plate; 11. First motor; 12. Drive shaft; 13. First chain; 14. Feeding plate; 15. Feeding shaft; 16. Placement platform; 17. Support base plate; 171. Stop block; 172. Support base; 2. Conveyor ring; 21. Positioning block; 211. First shaft; 212. Conveyor gear; 213. Check rod; 214. Transmission chain; 215. Spring; 216. Helical gear; 217. Return spring; 218. Connector; 219. Check gear; 210. First rotating shaft; 22. Conveyor roller; 221. Annular groove; 23. Positioning plate; 231. Positioning rod; 232. Second bevel gear; 233. First bevel gear; 234. Reciprocating thread; 24. Positioning shaft; 241. Limiting plate; 242. Positioning gear; 243. First spring 244. Spring; 245. Limiting frame; 246. Positioning rack; 25. Conveying rack; 26. Conveying frame; 27. Sixth hydraulic rod; 217. Extrusion block; 28. Synchronous shaft; 281. First groove; 3. First welding plate; 31. First welding head; 32. Third hydraulic rod; 33. First adjusting plate; 34. Limiting piece; 341. Guide groove; 4. Second welding plate; 41. First welding head; 42. Second hydraulic rod; 43. Fourth hydraulic rod; 45. Slider; 46. Slide; 5. Conveying motor; 51. Second conveying shaft; 52. Third conveying shaft; 53. Synchronous chain; 54. Third conveying wheel; 6. Storage box; 61. First hydraulic rod; 62. Cutting plate; 63. First conveying wheel; 64. First conveying shaft; 65. Guide plate; 7. Solar cell; 8. Metal strip. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0047] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or may be interposed with another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may be interposed with another element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Example 1, please refer to Figure 1 , Figure 2 and Figure 3 A welding mechanism for electrode connection metal strips 8 is disclosed, applied to the welding of solar cells 7 and metal strips 8. The welding mechanism includes a conveying mechanism for transporting the solar cells 7, a first welding mechanism for welding the metal strips 8 onto the solar cells 7, and a second welding mechanism for welding adjacent solar cells 7. The conveying mechanism includes symmetrically distributed and synchronously rotating conveying rings 2. Each conveying ring 2 is provided with multiple fixedly connected positioning blocks 21. Each positioning block 21 is provided with a vertically movable positioning plate 23. Each positioning plate 23 has a rotatable conveying frame 26 on one side for engaging the solar cells 7. The first welding mechanism includes a first welding plate 3 and a storage box 6. The first welding plate 3 is fixedly mounted on... Above the input end of the conveying ring 2, and on the first welding plate 3, there are multiple first welding heads 31 that can move back and forth. The storage box 6 is located on one side of the first welding plate 3. The metal strip 8 is located inside the storage box 6. The storage box 6 is provided with a rotatable first conveying wheel 63 for conveying the metal strip 8 to the first welding head 31. The storage box 6 is also provided with a cutting blade 62 that can move up and down for cutting the metal strip 8. The second welding mechanism includes a second welding plate 4. The second welding plate 4 is located above the output end of the conveying ring 2 and can move back and forth. The second welding plate 4 is provided with multiple second welding heads 41 that can move back and forth. The output end of the conveying ring 2 is also provided with a retractable stop block 171 for selectively blocking the solar cell 7.

[0050] By utilizing the conveying mechanism, individual solar cells 7 can be automatically and sequentially conveyed to the first welding mechanism and the second welding mechanism, thus achieving automatic conveying of solar cells 7. The combination of the vertical movement of the positioning plate 23 and the rotatability of the conveying frame 26 enables the solar cells 7 to automatically flip after welding in the first welding mechanism, while maintaining the conveying direction of the solar cells 7 unchanged. The addition of the stop block 171 can compress and splice multiple solar cells 7 together by blocking, thereby enabling adjacent solar cells 7 to be welded better in the second welding mechanism.

[0051] The first welding mechanism can automatically weld the metal strip 8 to the solar cell 7, while the second welding mechanism can automatically weld the metal to the adjacent solar cell 7, replacing manual welding and effectively improving the overall production efficiency.

[0052] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, the conveying mechanism further includes symmetrically distributed conveying plates 1. Each conveying ring 2 is provided with matching and symmetrically distributed conveying rollers 22, which are rotatably connected to the conveying plates 1. The first welding plate 3 and the storage box 6 are both fixedly installed on the conveying plates 1. A feeding plate 14 is also provided between the conveying rings 2. Each feeding plate 14 has a feeding shaft 15 at both ends, which is rotatably connected to the conveying plates 1. The bottom of the feeding plate 14 is provided with a support block for maintaining its horizontal position, and when the feeding plate 14 is horizontal, its upper surface is flush with the lower inner wall of the conveying frame 26. A first motor 11 is provided on one side of the conveying plate 1. The output end of the first motor 11 is connected to the conveying rollers 22 via a conveying shaft. A connected conveying shaft is provided on the outer side of the conveying rollers 22 on the other side. A rotatably connected drive shaft 12 is provided on one side of the conveying plate 1, and both ends of the drive shaft 12 are connected to two corresponding conveying shafts via a first chain 13.

[0053] In this embodiment, please refer to Figure 2 and Figure 3 The storage box 6 has an L-shaped guide plate 65 fixedly connected to the bottom, and a rotatable first conveying shaft 64 above the guide plate 65. The first conveying wheel 63 is fixedly installed on the first conveying shaft 64. The cutting blade 62 is disposed between the first conveying wheel 63 and the first welding plate 3. The bottom plate of the storage box 6 has a fixedly connected first hydraulic rod 61, and the bottom of the first hydraulic rod 61 is fixedly connected to the cutting blade 62.

[0054] In this embodiment, a second hydraulic rod 42 is fixedly connected to the side wall of the conveying plate 1, and the extended end of the second hydraulic rod 42 is fixedly connected to the second welding plate 4.

[0055] In this embodiment, please refer to Figure 5 , Figure 6The first welding plate 3 has a first welding groove, and the first welding groove has a first adjusting plate 33 that is slidably connected. The first adjusting plate 33 is fixedly connected to the first welding head 31. The first welding groove has a third hydraulic rod 32 that is fixedly connected. The third hydraulic rod 32 is connected to the first adjusting plate 33. The second welding plate 4 has a second welding groove, and the second welding groove has a second adjusting plate that is slidably connected. The second adjusting plate is fixedly connected to the second welding head 41. The second welding groove has a fourth hydraulic rod 43 that is fixedly connected. The fourth hydraulic rod 43 is connected to the second adjusting plate.

[0056] In this embodiment, please refer to Figure 3 A limiting piece 34 is provided below the first welding plate 3, and a plurality of guide grooves 341 corresponding to the corresponding metal strips 8 are provided on one side of the limiting piece 34. The design of the guide grooves 341 enables the metal strips 8 to be laid more precisely on the solar cell 7, ensuring the accuracy of welding.

[0057] In this embodiment, please refer to Figure 7 The first and second welding grooves are provided with symmetrically distributed sliding grooves 46 on their inner walls. One end of each sliding groove 46 is inclined upward. Both ends of the first and second adjusting plates are provided with fixedly connected sliders 45. The sliders 45 are slidably connected to the sliding grooves 46. The first adjusting plate 33 and the third hydraulic rod 32 are rotatably connected by a hinge. The second adjusting plate and the fourth hydraulic rod 43 are rotatably connected by a hinge.

[0058] The design of the groove 46 ensures that the first welding head 31 and the second welding head 41 are higher than the upper surface of the metal strip 8 in the initial state, thereby effectively preventing the presence of the first welding head 31 and the second welding head 41 from obstructing the metal strip 8 and allowing the first welding head 31 and the second welding head 41 to better weld the metal strip 8.

[0059] In this embodiment, please refer to Figure 4 A fixed support base 172 is provided on the conveying plate 1 located at the conveying end of the conveying ring 2. A plurality of fixed support base plates 17 are provided on the support base 172. The upper surface of the support base plate 17 is flush with the lower inner wall of the conveying frame 26, and the support base plate 17 is provided with an adjustment groove. The stop block 171 is slidably connected to the adjustment groove. A fifth hydraulic rod for driving the stop block 171 to move up and down is provided in the adjustment groove.

[0060] The addition of the support base plate 17 can not only support the stop block 171, but also control the length of the support base plate 17 so that the support base plate 17 can effectively support multiple solar cells 7 that are squeezed together; and prevent the solar cells 7 from falling off after being squeezed and separated.

[0061] In this embodiment, please refer to Figure 4 A rotatable second conveying shaft 51 is provided above the conveying ring 2 located on one side of the stop block 171. The second conveying shaft 51 is provided with a plurality of fixedly connected second conveying wheels for conveying the solar cell 7 outward. Two third conveying shafts 52 that can rotate synchronously are provided on the outside of the conveying ring 2. Each of the third conveying shafts 52 is provided with a plurality of fixedly connected third conveying wheels 54, and a placement platform 16 for placing the welded solar cell 7 is provided on the outside of the third conveying shaft 52.

[0062] The design of the second conveyor shaft 51 and the third conveyor shaft 52 enables the solar cells 7 to be automatically separated from the conveyor frame 26 after welding by rotating the second conveyor shaft 51 and the third conveyor shaft 52, and automatically transported to the placement table 16, thus realizing more comprehensive automated welding of solar cells 7.

[0063] In this embodiment, please refer to Figure 1 and Figure 4 Both ends of the second conveying shaft 51 and the third conveying shaft 52 are rotatably connected to the conveying plate 1. A synchronous chain 53 is provided between the second conveying shaft 51 and the third conveying shaft 52. The upper and lower adjacent second conveying shafts 51 are connected by a figure-eight synchronous belt. A conveying motor 5 is provided on the outside of the conveying plate 1. The conveying motor 5 is connected to one of the third conveying shafts 52.

[0064] As one possible implementation method, please refer to Figure 8 , Figure 9 and Figure 12 The positioning block 21 is provided with a positioning rod 231 that can move up and down. The upper end of the positioning rod 231 is connected to the bottom plate of the positioning plate 23. The conveying frame 26 is provided with a fixedly connected positioning shaft 24 on one side. The positioning shaft 24 is rotatably connected to the positioning plate 23. The positioning shaft 24 is provided with a one-way rotatably connected positioning gear 242 on the outside of the positioning shaft 24. The positioning plate 23 is provided with a fixedly connected L-shaped limiting frame 244. The limiting frame 244 is provided with a slidingly connected limiting plate 241. The limiting frame 244 is provided with a reset spring 217 for automatically restoring the limiting plate 241 to its initial position. The limiting plate 241 slides through the positioning block 21. The limiting plate 241 is provided with a positioning rack 245 that meshes with the positioning gear 242 on one side. The bottom of the limiting plate 241 is provided with a fixedly connected check block.

[0065] In this embodiment, please refer to Figure 11The positioning block 21 has a hollow adjustment cavity, and a rotatable synchronous shaft 28 is provided inside the adjustment cavity. A first bevel gear 233 is provided on the outside of the synchronous shaft 28. The positioning rod 231 slides through the side wall of the adjustment cavity, and a reciprocating thread 234 is provided on the outside of the positioning rod 231. An adjustment ring plate is provided on the side wall of the adjustment cavity and is rotatably connected to and matched with the reciprocating thread 234. The positioning rod 231 is connected to the adjustment ring plate through the reciprocating thread 234. A second bevel gear 232 that meshes with the first bevel gear 233 is provided on the outside of the adjustment ring plate.

[0066] In this embodiment, please refer to Figure 8 , Figure 9 and Figure 10 The positioning block 21 is fixedly connected to the conveying ring 2. The adjusting cavity is provided with a first shaft 211 that is rotatably connected. The inner side wall of the conveying ring 2 is provided with a conveying ring groove. The conveying ring groove is provided with a conveying gear 212. The first shaft 211 movably passes through the side wall of the conveying ring groove and is unidirectionally rotatably connected to the conveying gear 212. The conveying ring groove is also provided with a slidably connected conveying rack 25. The conveying rack 25 meshes with the conveying gear 212 and is fixedly connected to the corresponding conveying plate 1. The conveying roller 22 is provided with an annular groove 221 for the conveying rack 25 to pass through. The first shaft 211 and the synchronous shaft 28 are connected and synchronously driven by a transmission chain 214. The synchronous shaft 28 located on the side wall of the adjusting cavity is provided with an energy storage spring 215. The energy storage spring 215 is a spring 215 with full chain protection. The synchronous shaft 28 and the first bevel gear 233 are unidirectionally rotatably connected by a ratchet connection.

[0067] In this embodiment, please refer to Figure 11 and Figure 13The synchronous shaft 28 has a first groove 281 at its end, and a first rotating shaft 210 is provided in the first groove 281. The first rotating shaft 210 has a plurality of fixedly connected helical teeth 216 with the same inclination direction, and the first rotating shaft 210 is fixedly connected to the side wall of the adjustment cavity. A recovery groove is provided on the side wall of the first groove 281, and a check tooth 219 is provided in the recovery groove to prevent the helical teeth 216 from reversing. A first spring 243 is fixedly connected in the recovery groove to drive the check tooth 219 to automatically pop out. The extension end of the first spring 243 is fixed to the check tooth 219. The recycling tank is also equipped with a fixed and flexible connector 218. The extended end of the connector 218 is fixedly connected to the check tooth 219. The side wall of the adjusting cavity is equipped with a slidingly connected check rod 213. The end of the check rod 213 is connected to the connector 218, and the outer end of the check rod 213 is located on one side of the conveying ring 2. The outer end of the check rod 213 is in the shape of a locking tongue. The conveying plate 1 is equipped with a fixedly connected sixth hydraulic rod 27. The extended end of the sixth hydraulic rod 27 is equipped with a fixedly connected extrusion block 217 for extruding and recycling the outer end of the check rod 213.

[0068] The design of the conveying rack 25, conveying gear 212, first shaft 211, synchronous shaft 28, spring 215, transmission chain 214, and the unidirectional rotational connection between the first bevel gear 233 and the synchronous shaft 28 allows the conveying ring 2 to rotate while the conveying gear 212 meshes with the conveying rack 25, driving the conveying gear 212 to rotate continuously. This, in turn, drives the synchronous shaft 28 to rotate continuously via the transmission chain 214, allowing the synchronous shaft 28 to store energy in the spring 215. Simultaneously, due to the unidirectional rotational connection between the first bevel gear 233 and the synchronous shaft 28, the spring 215 remains in an energy-storing state throughout this process. Furthermore, due to the presence of the check tooth 219, even when the conveying ring 2 stops, the energy stored in the spring 215 is still present. The old mechanism will not release the energy stored in the spring 215. The design of the check rod 213, the extrusion block 217, the sixth hydraulic rod 27, the helical tooth 216, the check tooth 219, the first spring 243, and the connector 218 allows the check rod 213 to automatically retract when it moves to the extrusion block 217. Due to the locking tongue design at the end of the check rod 213, the check rod 213 can be automatically extruded and retracted. This allows the check tooth 219 to automatically release its restriction on the helical tooth 216 via the connector 218. At this time, the energy stored in the spring 215 is automatically released, causing the synchronous shaft 28 to reverse, thereby causing the first bevel gear 233 to rotate. Through gear meshing, the second bevel gear 232 is driven to rotate. Through the characteristics of the reciprocating thread 234, the positioning rod 231 automatically moves upward and automatically moves back to the initial position.

[0069] The positioning gear 242, limiting plate 241, positioning rack 245, return spring 217, and limiting frame 244 work together. When the positioning rod 231 moves upward, the limiting plate 241, due to its sliding connection design, also moves upward synchronously. Before the positioning rod 231 reaches its highest point, a check block engages to prevent the limiting plate 241 from moving. At this time, the limiting plate 241 is pulled downward, and the positioning rack 245 on the limiting plate 241 meshes with the positioning gear 242, thereby rotating the positioning shaft 24 and causing the conveyor frame 2 to move downward. 6 can rotate 180 degrees, realizing the automatic flipping of solar cell 7. The flipping is completed before the positioning rod 231 moves to the highest position. When the positioning rod 231 moves downward, due to the one-way rotational connection between the positioning shaft 24 and the positioning gear 242, plus the elasticity of the return spring 217, the limit plate 241 can be driven to automatically return to the initial position. The movement of the limit plate 241 will not affect the rotation of the positioning shaft 24, so that the positioning rod 231 realizes the automatic flipping of solar cell 7 during the up and down movement.

[0070] The design of the sixth hydraulic rod 27 and the extrusion block 217 also enables more precise control over the flipping of different solar cells 7 by controlling the position of the extrusion block 217. This is because the solar cells 7 below the second welding plate 4 are extruded and spliced ​​sequentially. After the metal strip 8 is welded and flipped, it is easy for the next metal strip 8 to fail to move accurately above the previous solar cell 7. This precise control allows the metal strip 8 to automatically be positioned above the previous solar cell 7 after the solar cell 7 is flipped, thus effectively solving the problem of the metal strip 8 failing to be accurately conveyed.

[0071] A method for welding an electrode connecting metal strip 8 includes the following steps:

[0072] S1 feeds the solar cell 7 into the two conveying frames 26 on one side of the input end of the conveying ring 2, so that the solar cell 7 is engaged in the conveying frame 26. Then, by rotating the conveying ring 2, the solar cell 7 is moved to the position directly below the first welding plate 3.

[0073] S2 then uses the rotation of the first conveying wheel 63 to simultaneously convey multiple metal strips 8 to the solar cell 7, and then uses the reciprocating motion of the first welding head 31 to weld the metal strips 8 onto the solar cell 7.

[0074] After welding S3 is completed, the cutting blade 62 is controlled to cut and separate the metal strip 8. Then, the conveying ring 2 is controlled to move and move the welded solar cell 7 toward the second welding plate 4. At the same time, the next conveying frame 26 containing the solar cell 7 moves again to below the first welding plate 3.

[0075] Before the first solar cell 7 moves to the stop 171, the positioning plate 23 is controlled to move upward. When the positioning plate 23 moves to the highest point, the conveyor frame 26 is rotated, causing the solar cell 7 to automatically flip over. Then the solar cell 7 moves to the stop 171 along with the conveyor ring 2.

[0076] Before each subsequent solar cell 7 moves to the previous solar cell 7, S5 controls the positioning plate 23 to move upward. When the positioning plate 23 moves to the highest point, the conveying frame 26 is rotated, causing the solar cell 7 to automatically flip over, so that the metal strip 8 is automatically positioned above the previous solar cell 7. The first solar cell 7 is blocked by the stop block 171. In addition, the solar cell 7 is slidably engaged with the conveying frame 26. Therefore, as the conveying ring 2 moves, the solar cell 7 will separate from the corresponding conveying frame 26. Multiple solar cells 7 will be sequentially pressed and spliced ​​together. At the same time, the metal strip 8 on the next solar cell 7 is automatically positioned on the previous solar cell 7.

[0077] S6 then controls the second welding plate 4 to move a certain displacement in sequence, so that the second welding head 41 moves to the upper part of the corresponding metal strip 8 in sequence. When the second welding head 41 moves to the upper part of the metal strip 8, the second welding head 41 is controlled to reciprocate, so that the second welding head 41 welds the metal strip 8 to the corresponding solar cell 7.

[0078] S7 After the corresponding number of solar cells 7 are welded, the control block 171 retracts, and the welded solar cells 7 can be removed.

[0079] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or a process variable (e.g., temperature, pressure, time, etc.) is described as ranging from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, it is intended to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are similarly explicitly stated in this specification.

[0080] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0081] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0082] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0083] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. An electrode connection metal strip welding mechanism, applied to the welding of solar cells and metal strips, characterized in that: The welding mechanism includes a conveying mechanism for transporting solar cells, a first welding mechanism for welding metal strips onto solar cells, and a second welding mechanism for welding adjacent solar cells. The conveying mechanism includes symmetrically distributed and synchronously rotating conveying rings. Each conveying ring has multiple fixedly connected positioning blocks, and each positioning block has a vertically movable positioning plate. Each positioning plate has a rotatable conveying frame on one side for engaging the solar cells. The first welding mechanism includes a first welding plate and a storage box. The first welding plate is fixedly positioned above the input end of the conveying rings, and the first welding... The welding plate is provided with multiple reciprocating first welding heads. The storage box is located on one side of the first welding plate. The metal strip is located inside the storage box. The storage box is provided with a rotatable first conveying wheel for conveying the metal strip to the first welding heads. The storage box is also provided with a cutting blade that can move up and down for cutting the metal strip. The second welding mechanism includes a second welding plate. The second welding plate is reciprocatingly located above the output end of the conveying ring. The second welding plate is provided with multiple reciprocating second welding heads. The output end of the conveying ring is also provided with a retractable stop block for selectively blocking solar cells. The positioning block is provided with a positioning rod that can move up and down. The upper end of the positioning rod is connected to the bottom plate of the positioning plate. A positioning shaft is fixedly connected to one side of the conveying frame. The positioning shaft is rotatably connected to the positioning plate. A positioning gear is rotatably connected to the outside of the positioning shaft. A fixedly connected L-shaped limiting frame is provided on the positioning plate. A slidingly connected limiting plate is provided inside the limiting frame. A reset spring is provided inside the limiting frame to drive the limiting plate to automatically return to its initial position. The limiting plate slides through the positioning block. A positioning rack that meshes with the positioning gear is provided on one side of the limiting plate. A fixedly connected check block is provided at the bottom of the limiting plate.

2. The electrode connection metal strip welding mechanism according to claim 1, characterized in that: The conveying mechanism also includes symmetrically distributed conveying plates. Each conveying ring is provided with matching and symmetrically distributed conveying rollers. The conveying rollers are rotatably connected to the conveying plates. The first welding plate and the storage box are both fixedly installed on the conveying plates. A feeding plate is also provided between the conveying rings. Each feeding plate has a feeding shaft at both ends. The feeding shaft is rotatably connected to the conveying plates. The bottom of the feeding plate is provided with a support block for supporting the feeding plate to keep it horizontal. When the feeding plate is horizontal, its upper surface is flush with the lower inner wall of the conveying frame.

3. The electrode connection metal strip welding mechanism according to claim 1, characterized in that: The storage tank has a fixedly connected L-shaped guide plate at the bottom, and a rotatable first conveying shaft above the guide plate. The first conveying wheel is fixedly installed on the first conveying shaft, and the cutting blade is located between the first conveying wheel and the first welding plate. The bottom plate of the storage tank has a fixedly connected first hydraulic rod, and the bottom of the first hydraulic rod is fixedly connected to the cutting blade.

4. The electrode connection metal strip welding mechanism according to claim 2, characterized in that: Each of the conveyor plates is provided with a fixedly connected second hydraulic rod on its side wall, and the extension end of the second hydraulic rod is fixedly connected to the second welding plate.

5. The electrode connection metal strip welding mechanism according to claim 1, characterized in that: The first welding plate has a first welding groove, and a first adjusting plate that is slidably connected is provided in the first welding groove. The first adjusting plate is fixedly connected to the first welding head. A third hydraulic rod that is fixedly connected is provided in the first welding groove and is connected to the first adjusting plate. The second welding plate has a second welding groove, and a second adjusting plate that is slidably connected is provided in the second welding groove. The second adjusting plate is fixedly connected to the second welding head. A fourth hydraulic rod that is fixedly connected is provided in the second welding groove and is connected to the second adjusting plate.

6. The electrode connection metal strip welding mechanism according to claim 2, characterized in that: The conveying plate located at the conveying end of the conveying ring is provided with a fixedly connected support base. The support base is provided with multiple fixedly connected support bottom plates. The upper surface of the support bottom plate is flush with the lower inner wall of the conveying frame, and the support bottom plate is provided with an adjustment groove. The stop block is slidably connected to the adjustment groove. A fifth hydraulic rod for driving the stop block to move up and down is provided in the adjustment groove.

7. The electrode connection metal strip welding mechanism according to claim 1, characterized in that: A rotatable second conveying shaft is provided above the conveying ring on one side of the stop block. The second conveying shaft is provided with multiple fixedly connected second conveying wheels for conveying solar cells outward. Two third conveying shafts that can rotate synchronously are provided outside the conveying ring. Each third conveying shaft is provided with multiple fixedly connected third conveying wheels, and a placement platform for placing the welded solar cells is provided outside the third conveying shaft.

8. The electrode connection metal strip welding mechanism according to claim 1, characterized in that: The positioning block has a hollow adjustment cavity, and a rotatable synchronous shaft is provided inside the adjustment cavity. A first bevel gear is provided on the outside of the synchronous shaft. The positioning rod slides through the side wall of the adjustment cavity, and a reciprocating thread is provided on the outside of the positioning rod. An adjustment ring plate is provided on the side wall of the adjustment cavity and is rotatably connected to and matched with the reciprocating thread. The positioning rod is connected to the adjustment ring plate through the reciprocating thread. A second bevel gear that meshes with the first bevel gear is provided on the outside of the adjustment ring plate.

9. A method for welding electrode-connecting metal strips, employing the electrode-connecting metal strip welding mechanism according to any one of claims 1-8, characterized in that, Includes the following steps: S1 feeds the solar cell between two conveyor frames on one side of the input end of the conveyor ring, so that the solar cell is engaged in the conveyor frame. Then, by rotating the conveyor ring, the solar cell is moved to the position directly below the first welding plate. S2 then uses the rotation of the first conveying wheel to synchronously convey multiple metal strips to the top of the solar cell, and then uses the reciprocating motion of the first welding head to weld the metal strips onto the solar cell; After S3 welding is completed, the cutting blade is controlled to cut and separate the metal strip. Then, the conveyor ring is controlled to move and move the welded solar cell toward the second welding plate. At the same time, the next conveyor frame containing the solar cell moves again to the bottom of the first welding plate. Before the first solar cell moves to the stop, the positioning plate moves upward. When the positioning plate reaches its highest point, the conveyor frame rotates, causing the solar cell to automatically flip over. Then, the solar cell moves to the stop along with the conveyor ring. Before each subsequent solar cell moves to the previous one, S5 controls the positioning plate to move upward. When the positioning plate reaches its highest point, it causes the conveyor frame to rotate, causing the solar cells to automatically flip over and the metal strip to automatically be positioned above the previous solar cell. The first solar cell is blocked by the stop block, and the solar cell is slidably engaged with the conveyor frame. Therefore, as the conveyor ring moves, the solar cell will separate from the corresponding conveyor frame, and multiple solar cells will be sequentially pressed together. At the same time, the metal strip on the next solar cell will automatically be positioned on the previous solar cell. S6 then controls the second welding plate to move a certain displacement in sequence, so that the second welding head moves to the top of the corresponding metal strip in sequence. When the second welding head moves to the top of the metal strip, the second welding head is controlled to reciprocate, so that the second welding head welds the metal strip to the corresponding solar cell. S7 Once the corresponding number of solar cells have been welded, the control block retracts, allowing the welded solar cells to be removed.

Images