Automatic solar cell sheet regularizing device

Abstract

The application relates to the field of automatic regularizing technology of solar cell pieces, and provides an automatic regularizing device for solar cell pieces, which comprises a conveying mechanism, a regularizing mechanism and a carrying mechanism; the conveying mechanism comprises a first conveying belt, a second conveying belt and a third conveying belt; the first conveying belt is used for conveying cell pieces; the second conveying belt is arranged at the end of the first conveying belt and is used for receiving the cell pieces from the first conveying belt; the speed of the second conveying belt is greater than that of the first conveying belt; the regularizing mechanism is arranged in plurality; the plurality of regularizing mechanisms are connected to the third conveying belt and are arranged in a length direction of the third conveying belt; the regularizing mechanism comprises a receiving plate, a regularizing shaft and a rotating motor; and the receiving plate is used for receiving the cell pieces from the carrying mechanism. The application has the effect of facilitating the regularizing of the solar cell pieces.

Description

Automatic solar cell alignment device Technical Field

[0001] This application relates to the field of automatic solar cell straightening technology, and in particular to an automatic solar cell straightening device. Background Technology

[0002] Solar cells are the core component of photovoltaic power generation systems. As the technology continues to develop and mature, the demand for solar cells is also increasing.

[0003] After the solar cells are manufactured, they need to be sorted to ensure their quality and consistency.

[0004] Therefore, there is a need for an automatic solar cell straightening device to facilitate the automatic straightening of solar cells and improve the straightening efficiency. Summary of the Invention

[0005] To facilitate the arrangement of solar cells, this application provides an automatic solar cell arrangement device.

[0006] The automatic solar cell alignment device provided in this application adopts the following technical solution:

[0007] An automatic solar cell straightening device includes a conveying mechanism, a straightening mechanism, and a handling mechanism. The conveying mechanism includes a first conveyor belt, a second conveyor belt, and a third conveyor belt. The first conveyor belt conveys solar cells, and the second conveyor belt is located at the end of the first conveyor belt and receives the solar cells from the first conveyor belt. The speed of the second conveyor belt is greater than the speed of the first conveyor belt. Guide strips are provided on both sides of the second conveyor belt. Each guide strip has a guiding portion and a limiting portion. The limiting portion is connected to the end of the guiding portion away from the first conveyor belt. The distance between the two limiting portions is equal to the width or length of the solar cell. The distance between the two guiding portions extends from the end closest to the first conveyor belt to... The other end gradually decreases in size; the third conveyor belt is located at the end of the second conveyor belt and is perpendicular to the conveying direction of the second conveyor belt; multiple sizing mechanisms are provided, each connected to the third conveyor belt, and the multiple sizing mechanisms are arranged at intervals along the length of the third conveyor belt; each sizing mechanism includes a receiving plate, a sizing shaft, and a rotating motor, the receiving plate being used to receive the battery cells from the handling mechanism; multiple sizing shafts are provided, each rotatably connected to the third conveyor belt, the multiple sizing shafts enclosing the receiving plate, and the sizing shafts being used to abut against the sidewall of the battery cell; the rotating motor is connected to the third conveyor belt, and the rotating motor is used to drive the sizing shafts to rotate.

[0008] By adopting the above technical solution, the solar cells to be sorted are placed on the first conveyor belt, which carries the solar cells to the second conveyor belt. The speed difference between the second and first conveyor belts reduces the stacking of multiple solar cells. The solar cells then reach the guide section, where they are guided between two limiting sections. When the solar cells reach the end of the second conveyor belt, the conveying mechanism is activated, transporting the solar cells from the end of the second conveyor belt to the receiving plate of the sorting mechanism. After a certain number of solar cells are placed on the receiving plate, the rotating motor is activated, driving the sorting shaft to rotate. Multiple solar cells are then arranged into a neat stack under the contact action of the sorting shaft, thus achieving automatic sorting of the solar cells.

[0009] Optionally, an adjustment mechanism is provided on one side of the second conveyor belt. The adjustment mechanism includes a support member and an adjustment member. The adjustment member is rotatably connected to the support member, and the axis of rotation of the adjustment member relative to the support member is perpendicular to the conveying direction of the second conveyor belt. The adjustment member includes multiple actuating parts, which are arranged at intervals around the rotation axis of the adjustment member. The minimum distance between the actuating parts and the second conveyor belt is greater than the thickness of one battery cell and less than the thickness of two battery cells. The direction of movement of the actuating parts when they are at their lowest point is opposite to the conveying direction of the second conveyor belt.

[0010] By adopting the above technical solution, while the second conveyor belt is conveying the battery cells, the rotating part rotates relative to the support member, causing the rotating part to drive the actuating part to rotate. When the actuating part rotates, the battery cells that are laid flat on the second conveyor belt and are not stacked can pass smoothly through the adjustment mechanism. If the battery cells are in an upright state or multiple battery cells are stacked, the actuating part drives the upper battery cells to move towards the direction of the first conveyor belt, thereby separating the stacked battery cells so as to facilitate the subsequent straightening of the battery cells.

[0011] Optionally, the adjustment mechanism further includes a drive shaft, a chain, and a first gear. One end of the drive shaft is rotatably connected to the support member, and the other end abuts against the lower surface of the second conveyor belt. A second gear is provided at the end of the drive shaft near the support member. The drive shaft meshes with the chain through the second gear, and the chain meshes with the first gear. The first gear is connected to the adjustment member and is coaxially arranged with the adjustment member.

[0012] By adopting the above technical solution, when the second conveyor belt starts, the second conveyor belt drives the drive shaft to rotate, the drive shaft drives the first gear to rotate through the chain, and then drives the rotating part to rotate, thereby driving the actuating part to rotate. There is no need to set a separate drive component in the drive shaft adjustment component, which reduces energy consumption.

[0013] Optionally, the adjusting component further includes a rotating part, and the actuating part is slidably connected to the rotating part along the radial direction of the rotating part; the rotating part is provided with a support spring, and under normal conditions, the support spring is in a compressed state, and the support spring applies a force to the actuating part pointing towards the central axis of the rotating part; an air bladder is provided in the middle of the rotating part, and the ends of the plurality of actuating parts near the air bladder abut against the air bladder.

[0014] By adopting the above technical solution, when it is necessary to increase the distance between the actuating part and the second conveyor belt, the airbag is deflated, and the support spring drives the actuating part to move closer to the center point of the rotating part; when it is necessary to decrease the distance between the actuating part and the second conveyor belt, the airbag is inflated, and the actuating part moves away from the center point of the rotating part under the action of the airbag. This makes the adjustment mechanism suitable for battery cells of different thicknesses and improves the flexibility of the adjustment mechanism.

[0015] Optionally, the straightening mechanism further includes a mounting plate, and the straightening shaft and the rotating motor are both connected to the mounting plate; the mounting plate is connected to a plurality of hydraulic cylinders, and the receiving plate is magnetically connected to the output end of the hydraulic cylinders; the connection points of the plurality of hydraulic cylinders and the receiving plate are arranged at intervals along the edge of the receiving plate.

[0016] By adopting the above technical solution, when removing the battery cells from the sizing mechanism, the mounting plate can be removed directly along with the stacked battery cells, which is convenient for operation; on the other hand, it also facilitates the maintenance and repair of the sizing mechanism.

[0017] Optionally, the mounting plate is rotatably connected to a take-up reel, which is connected to the output end of the rotating motor; the leveling shaft has a winding groove, and a pull rope is connected to the bottom of the winding groove on the leveling shaft, with multiple pull ropes of the leveling shaft connected to the take-up reel; a spring is connected to the end of the leveling shaft connected to the mounting plate, and the spring gradually tightens as the pull ropes on the leveling shaft are transferred to the take-up reel.

[0018] By adopting the above technical solution, after the handling mechanism transports the battery cells from the end of the second conveyor belt to the receiving plate, the hydraulic cylinder drives the receiving plate to move downwards by the thickness of one battery cell. After a certain number of battery cells are placed on the receiving plate, the rotating motor is started. The rotating motor drives the winding reel to rotate in the forward direction. When the winding reel rotates, it drives the pull rope to wind around the winding reel. The pull rope drives the leveling shaft to rotate. When the leveling shaft rotates, it levels the stack of battery cells placed on the receiving plate. During this process, the spring tightens. Then, the rotating motor drives the winding reel to rotate in the reverse direction, the pull rope loosens, and at the same time, the spring gradually resets and drives the leveling shaft to rotate in the reverse direction. When the leveling shaft rotates in the reverse direction, it drives the pull rope to rewind into the winding groove. During this process, the pull rope resets while the battery cells are leveled a second time. Thus, multiple leveling shafts are driven to rotate simultaneously by one drive unit, resulting in a smaller load on the mounting plate.

[0019] Optionally, a connecting platform is rotatably connected to the end of the straightening shaft, the spring is mounted on the connecting platform, and the connecting platform is magnetically connected to the mounting plate.

[0020] By adopting the above technical solution, the alignment shaft and the mounting plate can be detachably connected. On the one hand, this facilitates the maintenance, repair and replacement of the alignment shaft; on the other hand, it facilitates the adjustment of the position of the alignment shaft on the mounting plate, thereby adjusting the relative position between each alignment shaft, so that the alignment mechanism can be used for various sizes of solar cells and improve the flexibility of the alignment mechanism.

[0021] Optionally, the cross-section of the leveling shaft is elliptical, and the axis of rotation of the leveling shaft relative to the mounting plate is not collinear with the axis of the leveling shaft.

[0022] By adopting the above technical solution, when the spring is in its original state, the distance between the side wall of the alignment shaft and the battery cell placed on the receiving plate is the largest. At this time, the alignment shaft is away from the side wall of the battery cell and is used to abut against the side wall of the battery cell, thereby providing a certain space for the movement of the battery cell relative to the mounting plate. On the one hand, it is convenient for the handling mechanism to place the battery cell on the receiving plate, and on the other hand, it reduces the risk of continuous friction between the battery cell and the alignment shaft during the downward movement of the battery cell, and reduces the wear of the battery cell and the alignment shaft.

[0023] Optionally, the side wall of the receiving plate is provided with a pick-and-place groove for the passage of human fingers.

[0024] By adopting the above technical solution, it is easy to remove the stacked battery cells placed on the receiving plate after the arrangement is completed.

[0025] Optionally, the third conveyor belt is connected to multiple mounting platforms, and the straightening mechanism is detachably connected to the mounting platforms.

[0026] By adopting the above technical solution, the sizing mechanism and the third conveyor belt can be detachably connected, which facilitates the maintenance and repair of the sizing mechanism and further improves the flexibility of the sizing device.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] By setting up a conveying mechanism, a handling mechanism, and a straightening mechanism, the conveying mechanism includes a first conveyor belt, a second conveyor belt, and a third conveyor belt. The handling mechanism transports the cells sequentially through the first and second conveyor belts to the straightening mechanism connected to the third conveyor belt. The straightening mechanism straightens the stacked solar cells, thereby achieving the straightening of the solar cells.

[0029] By setting up an adjustment mechanism, the upper battery cell is moved by the actuating part of the adjustment mechanism, thus improving the alignment effect;

[0030] The alignment shaft is magnetically connected to the mounting plate, making it easy to adjust the position of the alignment shaft to fit different sizes of solar cells and improve the flexibility of the alignment mechanism. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 is a schematic diagram of the structure used to demonstrate the regularization device.

[0033] Figure 3 is a schematic diagram showing the connection state of the ball bearings at the limiting part.

[0034] Figure 4 is a schematic diagram illustrating the structure of the adjustment mechanism.

[0035] Figure 5 is a schematic diagram showing the connection between the actuating part and the rotating part.

[0036] Figure 6 is a structural schematic diagram used to illustrate the regularized shaft.

[0037] Figure 7 is a schematic diagram showing the structure of the pick-and-place slot.

[0038] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 11. First conveyor belt; 12. Second conveyor belt; 13. Third conveyor belt; 131. Mounting platform; 14. Guide bar; 141. Guide section; 142. Limiting section; 143. Ball bearing; 15. Limiting bar; 2. Straightening mechanism; 21. Receiving plate; 211. Pick-and-place groove; 22. Straightening shaft; 221. Winding groove; 222. Connecting platform; 223. Spring; 23. Rotating motor; 24. Mounting plate; 25. Hydraulic cylinder; 26. Pull rope; 27. Rewinding reel; 3. Handling mechanism; 31. Mounting frame; 32. First cylinder; 33. Second cylinder; 34. Suction cup; 4. Adjustment mechanism; 41. Support frame; 42. Support component; 43. Adjusting component; 431. Rotating part; 432. Actuating part; 433. Support spring; 434. Airbag; 435. Sliding hole; 4351. First hole; 4352. Second hole; 4353. Third hole; 44. Drive shaft; 45. Chain; 46. First gear; 47. Second gear. Detailed Implementation

[0039] The present application will be further described in detail below with reference to Figures 1-7.

[0040] This application discloses an automatic solar cell straightening device. Referring to FIG1, the automatic solar cell straightening device includes a conveying mechanism 1, a straightening mechanism 2, and a transport mechanism 3.

[0041] The conveying mechanism 1 includes a first conveyor belt 11, a second conveyor belt 12 and a third conveyor belt 13. The first conveyor belt 11 is used to convey battery cells. The second conveyor belt 12 is disposed at the end of the first conveyor belt 11 and is used to receive battery cells from the first conveyor belt 11. The speed of the second conveyor belt 12 is greater than the speed of the first conveyor belt 11.

[0042] The third conveyor belt 13 is located at the end of the second conveyor belt 12 away from the first conveyor belt 11, and the conveying direction of the third conveyor belt 13 is perpendicular to the conveying direction of the second conveyor belt 12. Multiple straightening mechanisms 2 are provided, and these mechanisms are connected to the third conveyor belt 13 at intervals along its length.

[0043] The transport mechanism 3 is located at the end of the second conveyor belt 12 away from the first conveyor belt 11. The transport mechanism 3 is used to transport the battery cells from the end of the second conveyor belt 12 to the straightening mechanism 2.

[0044] The second conveyor belt 12 has guide bars 14 on both sides. Each guide bar 14 has a guiding portion 141 and a limiting portion 142. The limiting portion 142 is connected to the end of the guiding portion 141 away from the first conveyor belt 11. The distance between the two limiting portions 142 is equal to the width or length of the battery cell. The distance between the two guiding portions 141 gradually decreases from one end closer to the first conveyor belt 11 to the other end.

[0045] Referring to Figures 1 and 2, the straightening mechanism 2 includes a receiving plate 21, straightening shafts 22, and a rotating motor 23. The receiving plate 21 is used to receive the battery cells from the conveying mechanism 3. Multiple straightening shafts 22 are provided, all rotatably connected to the third conveyor belt 13. The multiple straightening shafts 22 enclose the receiving plate 21, and the sidewalls of the straightening shafts 22 abut against the sidewalls of the battery cells. The rotating motor 23 is connected to the third conveyor belt 13 and drives the straightening shafts 22 to rotate.

[0046] The battery cells to be sorted are placed on the first conveyor belt 11, which carries them to the second conveyor belt 12. The speed difference between the second conveyor belt 12 and the first conveyor belt 11 reduces the stacking of multiple battery cells. The battery cells then reach the guide section 141, where they are guided between two limiting sections 142. When the battery cells reach the end of the second conveyor belt 12, the transport mechanism 3 is activated, transporting the battery cells from the end of the second conveyor belt 12 to the receiving plate 21 of the sorting mechanism 2. After a certain number of battery cells are placed on the receiving plate 21, the rotary motor 23 is activated, driving the sorting shaft 22 to rotate. Multiple battery cells are then arranged into a neat stack under the contact action of the sorting shaft 22, thus achieving automatic sorting of the battery cells.

[0047] Specifically, the guide portion 141 has an arc-shaped surface for the battery cell to contact, which provides some protection for the battery cell. Furthermore, the guide portion 141 is made of silicone, which further protects the battery cell.

[0048] Referring to Figure 3, multiple balls 143 are rolledly connected to the opposing surfaces of the two limiting portions 142. The multiple balls 143 are arranged along the length direction of the limiting portion 142 so that rolling friction is formed between the battery cell and the limiting portion 142, thereby reducing the wear between the battery cell and the limiting portion 142.

[0049] Both the guide section 141 and the limiting section 142 are detachably connected to the second conveyor belt 12, allowing the distance between the two guide bars 14 to be adjusted to accommodate different sizes of battery cells and improve the flexibility of the second conveyor belt 12. The guide bars 14 and the second conveyor belt 12 can be detachably connected by magnetic attraction or by bolts and the engagement of oblong holes.

[0050] Furthermore, limiting strips 15 are provided on the opposite sidewalls of the two guide strips 14. The distance between the lower surface of the limiting strip 15 and the upper surface of the second conveyor belt 12 is greater than the thickness of one battery cell but less than the thickness of two battery cells. Thus, the limiting strip 15 limits the battery cells in the height direction, and on the other hand, it also prevents the stacked battery cells from entering between the two limiting parts 142.

[0051] Referring to Figures 1 and 4, an adjustment mechanism 4 is further provided on one side of the second conveyor belt 12. The adjustment mechanism 4 includes a support frame 41, a support member 42, and an adjustment member 43. The support frame 41 is installed on one side of the second conveyor belt 12, the support member 42 is connected to the support frame 41, and the adjustment member 43 is rotatably connected to the support member 42. The axis of rotation of the adjustment member 43 relative to the support member 42 is perpendicular to the conveying direction of the second conveyor belt 12.

[0052] The adjusting component 43 includes a rotating part 431 and multiple actuating parts 432. The rotating part 431 is rotatably connected to the support member 42. The multiple actuating parts 432 are connected to the rotating part 431 around the rotating axis of the adjusting component 43. The minimum distance between the actuating parts 432 and the second conveyor belt 12 is greater than the thickness of one battery cell but less than the thickness of two battery cells. When the actuating parts 432 are at their lowest point, their movement direction is opposite to the conveying direction of the second conveyor belt 12. While the second conveyor belt 12 is conveying battery cells, the rotating part 431 rotates relative to the support member 42, causing the rotating part 431 to drive the actuating parts 432 to rotate. When the actuating parts 432 rotate, battery cells that are flat on the second conveyor belt 12 and not stacked can pass smoothly through the adjusting mechanism 4. If the battery cells are in an upright state or multiple battery cells are stacked, the actuating parts 432 drive the upper battery cells to move towards the first conveyor belt 11, thereby separating the stacked battery cells for subsequent straightening.

[0053] Referring to Figures 4 and 5, the actuating part 432 is radially slidably connected to the rotating part 431. The rotating part 431 is provided with a support spring 433. Normally, the support spring 433 is in a compressed state, and it applies a force to the actuating part 432 pointing towards the central axis of rotation. An air bladder 434 is provided in the middle of the rotating part 431, and the ends of the plurality of actuating parts 432 near the air bladder 434 abut against the air bladder 434. With this design, when it is necessary to increase the distance between the actuating part 432 and the second conveyor belt 12, the airbag 434 is deflated, and the support spring 433 drives the actuating part 432 to move closer to the center point of the rotating part 431; when it is necessary to decrease the distance between the actuating part 432 and the second conveyor belt 12, the airbag 434 is inflated, and the actuating part 432 moves away from the center point of the rotating part 431 under the action of the airbag 434. This makes the adjustment mechanism 4 suitable for battery cells of different thicknesses and improves the flexibility of the adjustment mechanism 4.

[0054] Referring to Figure 5, specifically, the connection structure between the actuating part 432 and the rotating part 431 is as follows: the rotating part 431 has multiple sliding holes 435, which are used for sliding connection of the actuating part 432. Each sliding hole 435 corresponds to one actuating part 432. Each sliding hole 435 includes a first hole 4351, a second hole 4352, and a third hole 4353. The first hole 4351 connects to the end of the second hole 4352 near the airbag 434, and the third hole 4353 connects to the end of the second hole 4352 away from the airbag 434. The diameter of the second hole 4352 is larger than the diameters of the first hole 4351 and the second hole 4352. An abutment portion is connected to the side wall of the portion of the actuating part 432 located in the second hole 4352. This abutment portion abuts against the end wall of the second hole 4352 near the airbag 434. An adjusting spring is fitted onto the portion of the actuating part 432 located in the second hole 4352. One end of the adjusting spring abuts against the abutting part, and the other end abuts against the end wall of the second hole 4352 away from the airbag 434.

[0055] It is understood that in other embodiments, multiple actuating parts 432 can be detachably connected to the rotating part 431, and when it is necessary to adjust the distance between the actuating part 432 and the second conveyor belt 12, actuating parts 432 of the corresponding size can be used.

[0056] It is understood that in other embodiments, the support member 42 can also be slidably connected to the support frame 41 along the height direction of the support frame 41. When it is necessary to adjust the distance between the actuating part 432 and the second conveyor belt 12, the adjusting member 43 can be moved relative to the support frame 41.

[0057] Referring to Figure 4, in this embodiment, the adjustment mechanism 4 further includes a drive shaft 44, a chain 45, and a first gear 46. One end of the drive shaft 44 is rotatably connected to the support member 42, and the other end abuts against the lower surface of the second conveyor belt 12. A second gear 47 is provided at the end of the drive shaft 44 near the support member 42. The drive shaft 44 meshes with the chain 45 through the second gear 47, and the chain 45 meshes with the first gear 46. The first gear 46 is connected to the rotating part 431 and is coaxially arranged with the rotating part 431. When the second conveyor belt 12 is started, the second conveyor belt 12 drives the drive shaft 44 to rotate. The drive shaft 44 drives the first gear 46 to rotate through the chain 45, which in turn drives the rotating part 431 to rotate, thereby driving the actuating part 432 to rotate.

[0058] Referring to Figure 1, the conveying mechanism 3 includes a mounting frame 31, a first cylinder 32, a second cylinder 33, and a suction cup 34. The first cylinder 32 is mounted on the mounting frame 31 and is connected to a connecting block. The first cylinder 32 drives the connecting block to move along the conveying direction of the second conveyor belt 12 from the end of the second conveyor belt 12 to the third conveyor belt 13. The second cylinder 33 is mounted on the connecting block, and the suction cup 34 is connected to the output end of the second cylinder 33. The second cylinder 33 drives the suction cup 34 to move along the height direction of the second conveyor belt 12. The suction cup 34 is used to pick up and place battery cells.

[0059] Referring to Figure 2, the specific structure of the straightening mechanism 2 is as follows: The straightening mechanism 2 includes a mounting plate 24, a receiving plate 21, a straightening shaft 22, and a rotating motor 23. The mounting plate 24 is connected to the third conveyor belt 13. Multiple hydraulic cylinders 25 are connected to the mounting plate 24, and the hydraulic cylinders 25 are electrically connected to the control terminal. The receiving plate 21 is magnetically connected to the output end of the hydraulic cylinders 25. The connection points between the multiple hydraulic cylinders 25 and the receiving plate 21 are arranged at intervals along the edge of the receiving plate 21. A pressure sensor is installed on the receiving plate 21, and the pressure sensor is electrically connected to the control terminal.

[0060] There are eight alignment shafts 22, all of which are rotatably connected to the mounting platform. The eight alignment shafts 22 are divided into four groups, and the four groups of alignment shafts 22 correspond to the four side walls of the battery cell.

[0061] The leveling shaft 22 is rotatably connected to the mounting plate 24, and the rotating motor 23 is connected to the mounting plate 24. The rotating motor 23 is used to drive the leveling shaft 22 to rotate.

[0062] Referring to Figures 2 and 6, the specific structure connecting the rotating motor 23 and the leveling shaft 22 is as follows: A winding groove 221 is provided on the side wall of the leveling shaft 22, and the winding groove 221 is arranged circumferentially around the leveling shaft 22. A pull rope 26 is connected to the bottom of the winding groove 221 on the leveling shaft 22. A take-up reel 27 is rotatably connected to the mounting plate 24, and the take-up reel 27 is connected to the output end of the rotating motor 23. A spring 223 is connected to the end of the leveling shaft 22 connected to the mounting plate 24. During the process of the pull rope 26 on the leveling shaft 22 being transferred to the take-up reel 27, the spring 223 gradually tightens.

[0063] After the conveying mechanism 3 transports the battery cells from the end of the second conveyor belt 12 to the receiving plate 21, the hydraulic cylinder 25 drives the receiving plate 21 to move downwards by the thickness of one battery cell. After a certain number of battery cells are placed on the receiving plate 21, the rotating motor 23 is started. The rotating motor 23 drives the winding reel 27 to rotate in the forward direction. When the winding reel 27 rotates, it drives the pull rope 26 to wind around the winding reel 27. The pull rope 26 drives the straightening shaft 22 to rotate. When the straightening shaft 22 rotates, it straightens the stack of battery cells placed on the receiving plate 21. During this process, the spring 223 tightens. Then, the rotating motor 23 drives the winding reel 27 to rotate in the reverse direction, the pull rope 26 loosens, and at the same time, the spring 223 gradually resets and drives the straightening shaft 22 to rotate in the reverse direction. When the straightening shaft 22 rotates in the reverse direction, it drives the pull rope 26 to rewind into the winding groove 221. During this process, the pull rope 26 is reset while the battery cells are straightened a second time.

[0064] Furthermore, the end of the alignment shaft 22 is connected to a connecting platform 222, and the spring 223 is mounted on the connecting platform 222. The connecting platform 222 is magnetically connected to the mounting plate 24, so as to flexibly determine the installation position of the alignment shaft 22 on the mounting plate 24, thereby adapting to battery cells of different sizes and improving the flexibility of the alignment mechanism 2.

[0065] Furthermore, the cross-section of the alignment shaft 22 is elliptical, and the axis of rotation of the alignment shaft 22 relative to the mounting plate 24 is not collinear with the axis of the alignment shaft 22. When the spring 223 is in its original state, the distance between the side wall of the alignment shaft 22 and the battery cell placed on the receiving plate 21 is at its maximum. At this time, the alignment shaft 22 is away from the side wall of the battery cell and is used to abut against the side wall of the battery cell, thereby providing a certain space for the movement of the battery cell relative to the mounting plate 24. On the one hand, this facilitates the placement of the battery cell on the receiving plate 21 by the transport mechanism 3, and on the other hand, it reduces the risk of continuous friction between the battery cell and the alignment shaft 22 during the downward movement of the battery cell, thus reducing the wear of the battery cell and the alignment shaft 22.

[0066] Referring to Figure 7, the side wall of the receiving plate 21 is provided with a pick-and-place groove 211, which is used for the passage of human fingers so that the stacked battery cells placed on the receiving plate 21 can be removed after the arrangement is completed.

[0067] Referring to Figures 1 and 2, the third conveyor belt 13 is further equipped with multiple mounting platforms 131. The mounting plate 24 is detachably connected to the mounting platform 131 via magnetic attraction, enabling a detachable connection between the straightening mechanism 2 and the third conveyor belt 13. This facilitates maintenance and repair of the straightening mechanism 2 and further improves the flexibility of the straightening device. It is understood that in other embodiments, the mounting plate 24 can also be detachably connected to the mounting platform 131 via bolts.

[0068] The implementation principle of the automatic solar cell straightening device in this application embodiment is as follows: when straightening the solar cells, multiple solar cells are transported to the first conveyor belt 11, and the first conveyor belt 11 transports the solar cells to the second conveyor belt 12. The speed difference between the second conveyor belt 12 and the first conveyor belt 11 is used to reduce the risk of multiple solar cells stacking together.

[0069] The solar cell first moves to the guide section 141 on the second conveyor belt. Under the guidance of the guide section 141, it enters between the two limiting sections 142 in a specific state, and moves to the end of the second conveyor belt 12 under the action of the limiting sections 142. Then, the conveying mechanism 3 moves the solar cell located at the end of the second conveyor belt 12 to the receiving plate 21. The pressure sensor on the receiving plate 21 transmits the pressure signal received by the receiving plate 21 to the control terminal. The control terminal controls the receiving plate 21 to move downward by a distance equal to the thickness of one solar cell through the hydraulic cylinder 25.

[0070] After a certain number of battery cells are placed on the receiving plate 21, the control terminal controls the winding reel 27 to rotate via the rotating motor 23. The winding reel 27 winds up the pull rope 26, which drives the straightening shaft 22 to rotate. During the rotation of the straightening shaft 22, the battery cells are straightened into a stack. Then the rotating motor 23 rotates in the opposite direction, and the pull rope 26 is loosened. At this time, the straightening shaft 22 rotates in the opposite direction under the action of the spring 223, which drives the pull rope 26 to rewind around the straightening shaft 22, thus completing the reset of the pull rope 26 and the straightening shaft 22.

[0071] Finally, the operator removes the neatly stacked battery cells from the receiving plate 21.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic solar cell alignment device, characterized in that: The system includes a conveying mechanism (1), a straightening mechanism (2), and a handling mechanism (3). The conveying mechanism (1) includes a first conveyor belt (11), a second conveyor belt (12), and a third conveyor belt (13). The first conveyor belt (11) is used to convey battery cells. The second conveyor belt (12) is located at the end of the first conveyor belt (11) and is used to receive the battery cells from the first conveyor belt (11). The speed of the second conveyor belt (12) is greater than the speed of the first conveyor belt (11). Guide strips (14) are provided on both sides of the second conveyor belt (12). Each guide strip (14) has a guide portion (141) and a limiting portion (142). The limiting portion (142) is connected to the end of the guide portion (141) away from the first conveyor belt (11). The distance between the two limiting portions (142) is equal to the width or length of the battery cell. The distance between the two guide portions (141) extends from one end near the first conveyor belt (11) to the other end. One end gradually decreases in size; the third conveyor belt (13) is located at the end of the second conveyor belt (12) and is perpendicular to the conveying direction of the second conveyor belt (12); multiple straightening mechanisms (2) are provided, and each of the multiple straightening mechanisms (2) is connected to the third conveyor belt (13), and the multiple straightening mechanisms (2) are arranged at intervals along the length direction of the third conveyor belt (13); the straightening mechanism (2) includes a receiving plate (21), a straightening shaft (22), and a rotating motor (23), The receiving plate (21) is used to receive the battery cell from the conveying mechanism (3); multiple alignment shafts (22) are provided, and the multiple alignment shafts (22) are rotatably connected to the third conveyor belt (13). The multiple alignment shafts (22) surround the receiving plate (21), and the alignment shafts (22) are used to abut against the side wall of the battery cell; the rotating motor (23) is connected to the third conveyor belt (13), and the rotating motor (23) is used to drive the alignment shafts (22) to rotate.

2. The automatic solar cell alignment device according to claim 1, characterized in that: An adjustment mechanism (4) is provided on one side of the second conveyor belt (12). The adjustment mechanism (4) includes a support member (42) and an adjustment member (43). The adjustment member (43) is rotatably connected to the support member (42). The axis of rotation of the adjustment member (43) relative to the support member (42) is perpendicular to the conveying direction of the second conveyor belt (12). The adjustment member (43) includes a plurality of actuating parts (432). The plurality of actuating parts (432) are arranged at intervals around the rotation axis of the adjustment member (43). The minimum distance between the actuating part (432) and the second conveyor belt (12) is greater than the thickness of one battery cell and less than the thickness of two battery cells. The direction of movement of the actuating part (432) when it is at the lowest point is opposite to the conveying direction of the second conveyor belt (12).

3. The automatic solar cell alignment device according to claim 2, characterized in that: The adjustment mechanism (4) further includes a drive shaft (44), a chain (45) and a first gear (46). One end of the drive shaft (44) is rotatably connected to the support member (42), and the other end abuts against the lower surface of the second conveyor belt (12). A second gear (47) is provided at the end of the drive shaft (44) near the support member (42). The drive shaft (44) meshes with the chain (45) through the second gear (47). The chain (45) meshes with the first gear (46). The first gear (46) is connected to the adjustment member (43) and is coaxially arranged with the adjustment member (43).

4. The automatic solar cell alignment device according to claim 2, characterized in that: The adjusting member (43) further includes a rotating part (431), and the actuating part (432) is slidably connected to the rotating part (431) along the radial direction of the rotating part (431); the rotating part (431) is provided with a support spring (433), and under normal conditions, the support spring (433) is in a compressed state, and the support spring (433) applies a force to the actuating part (432) pointing towards the central axis of the rotating part (431); an airbag (434) is provided in the middle of the rotating part (431), and the ends of the plurality of actuating parts (432) near the airbag (434) all abut against the airbag (434).

5. The automatic solar cell alignment device according to claim 1, characterized in that: The straightening mechanism (2) also includes a mounting plate (24), the straightening shaft (22) and the rotating motor (23) are both connected to the mounting plate (24); the mounting plate (24) is connected to a plurality of hydraulic cylinders (25), the receiving plate (21) is magnetically connected to the output end of the hydraulic cylinders (25), and the connection points of the plurality of hydraulic cylinders (25) and the receiving plate (21) are arranged at intervals along the edge of the receiving plate (21).

6. The automatic solar cell alignment device according to claim 5, characterized in that: The mounting plate (24) is rotatably connected to a take-up reel (27), which is connected to the output end of the rotating motor (23). The leveling shaft (22) has a winding groove (221), and a pull rope (26) is connected to the bottom of the winding groove (221) of the leveling shaft (22). The pull ropes (26) of multiple leveling shafts (22) are all connected to the take-up reel (27). A spring (223) is connected to the end of the leveling shaft (22) connected to the mounting plate (24). During the process of the pull ropes (26) on the leveling shaft (22) being transferred to the take-up reel (27), the spring (223) gradually tightens.

7. The automatic solar cell alignment device according to claim 6, characterized in that: The end of the straightening shaft (22) is rotatably connected to a connecting platform (222), the spring (223) is mounted on the connecting platform (222), and the connecting platform (222) is magnetically connected to the mounting plate (24).

8. The automatic solar cell alignment device according to any one of claims 5 to 7, characterized in that: The cross-section of the regularizing shaft (22) is elliptical, and the axis of rotation of the regularizing shaft (22) relative to the mounting plate (24) is not collinear with the axis of the regularizing shaft (22).

9. The automatic solar cell alignment device according to any one of claims 5 to 7, characterized in that: The side wall of the receiving plate (21) is provided with a pick-and-place groove (211), which is used for the human finger to pass through.

10. The automatic solar cell alignment device according to claim 1, characterized in that: The third conveyor belt (13) is connected to multiple mounting platforms (131), and the straightening mechanism (2) is detachably connected to the mounting platform (131).

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