A photovoltaic ribbon automatic compensation winding method and device based on optical measurement

Abstract

The present invention relates to the field of photovoltaic welding ribbon winding, and discloses an automatic compensation winding method and device for photovoltaic welding ribbon based on optical measurement, comprising a wire wheel, a first camera, a second camera, an X-axis track, a Y-axis track, and a fixed seat, wherein the first camera shoots the width of a non-fixed-width linear photovoltaic welding ribbon to be wound, the second camera slides along the X-axis track, the second camera shoots the gap and stacking thickness of the photovoltaic welding ribbon on the wire wheel, the fixed seat slides along the Y-axis track, and the wire wheel and the fixed seat are rotationally connected; the rotation speed of the wire wheel is set to S1, the speed of the wire wheel driven by the fixed seat along the Y-axis is S2, the width of the photovoltaic welding ribbon is H, the winding length of the wire wheel during each rotation is L, and S2 / S1=H / L; the value of S1 is fixed, the first camera shoots and calculates the value of H, the value of S2 is calculated according to H and L, the gap between the welding ribbons is dynamically adjusted, the gap size is automatically compensated, and the speed S2 is adjusted in real time, so that the surface of the finished wire wheel welding ribbon is flat and smooth, the gap of the photovoltaic welding ribbon is tight and uniform, and the finished product has high quality.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic ribbon winding, and in particular to a method and device for automatic compensation winding of a photovoltaic ribbon based on optical measurement. Background Art

[0002] After tinning, photovoltaic ribbons need to be cooled and wound. Because the ribbons are round, rectangular, or flat, they may deform slightly during the manufacturing process, resulting in low width and thickness consistency. During the photovoltaic ribbon winding process, problems can easily arise, such as uneven ribbons on the surface of the finished reel, uneven gaps between the wheel axle and the ribbon, and chaotic arrangement. Existing winding devices are unable to fully automatically detect and adjust the winding process in real time based on the shape of the photovoltaic ribbon, resulting in poor quality of the finished product. Summary of the Invention

[0003] To solve at least one aspect of the above problems, the present invention first provides an automatic compensation winding method for photovoltaic welding ribbons based on optical measurement, comprising a wire wheel, a first camera, a second camera, an X-axis track, a Y-axis track, and a fixed seat, wherein the first camera is used to photograph the width of the linear photovoltaic welding ribbon to be wound, the second camera is slidably connected to the X-axis track, the second camera is used to photograph the gap between the photovoltaic welding ribbons on the wire wheel and the stacking thickness, the fixed seat is slidably connected to the Y-axis track, and the wire wheel and the fixed seat are rotatably connected;

[0004] Assume that the rotation speed of the wire wheel is S1, the movement speed of the wire wheel driven by the fixed seat along the Y axis is S2, the width of the photovoltaic welding ribbon is H, and the winding length of the wire wheel during each rotation is L, then S2 / S1=H / L; the rotation speed S1 of the wire wheel is fixed, the value of H is calculated based on the pixel values ​​of the image captured by the first camera, and the value of S2 is calculated based on the real-time updated H and L, so as to adjust the movement speed S2 in real time to achieve close arrangement of the photovoltaic welding ribbons on the wire wheel;

[0005] Assuming the stackable radius of the reel is R, then L=2πR. When the photovoltaic ribbon on the reel is wound around the first layer, R is the radius of the reel. When the photovoltaic ribbon on the reel is wound around one layer and begins to stack, the windable radius R of the reel increases, causing L to increase. The increase in R is detected by the second camera, and S2 / S1=H / L is recalculated based on the updated L, thereby making real-time adjustments.

[0006] The method for detecting the increase in R by the second camera is as follows: when the wire wheel has not started winding, adjusting the position of the second camera so that the second camera can capture and mark the edge position of the inner cylinder of the wire wheel in the image, and using the tangent of the edge position of the inner cylinder as the baseline of the image captured by the second camera; when the photovoltaic welding ribbon on the wire wheel has completed one layer of winding and started to stack the nth layer, controlling the second camera to slide along the X-axis track so that the tangent of the outermost photovoltaic welding ribbon on the wire wheel is aligned with the baseline, and the movement distance of the second camera at this time is the increase in R;

[0007] Or, when the wire wheel has not started to wind, the position of the second camera is adjusted so that the second camera can take pictures and calculate the edge position of the inner cylinder of the wire wheel based on the pixel value, and the edge position of the inner cylinder is set as the initial moving position; when the photovoltaic welding tape on the wire wheel has finished winding one layer and starts to stack the nth layer, the imaging position of the edge of the outermost circle of photovoltaic welding tape on the wire wheel on the second camera is calculated and set as the nth layer position. At this time, the difference in pixel values ​​between the nth layer position and the initial moving position is the increase in R when stacking the nth layer.

[0008] Optionally, the first camera measures the width of the photovoltaic welding ribbon. When the detection value suddenly changes significantly compared with the initial measured width value or the detection value is close to the thickness of the photovoltaic welding ribbon, it means that the photovoltaic welding ribbon is twisted. At this time, the winding work is stopped and an alarm is issued to remind manual inspection and adjustment.

[0009] Optionally, when the second camera detects that the gap between the photovoltaic welding ribbons is large or irregular overlap occurs, the fixed seat is controlled to move back along the Y-axis slide rail to the position before the error occurred, and the wire wheel is rotated back to the position before the error occurred to rewind.

[0010] Compared with the existing technology, the automatic compensation winding method of photovoltaic welding ribbon based on optical measurement in the present invention can realize the function of automatic detection and dynamic compensation adjustment of the winding gap during the photovoltaic welding ribbon winding process, so that the surface of the finished wire wheel is smooth, the gap between the photovoltaic welding ribbons is uniform, and the quality of the finished product is high.

[0011] In addition, the present invention provides a photovoltaic welding ribbon automatic winding device for realizing the automatic compensation winding method of photovoltaic welding ribbon based on optical measurement as described above, including a base and a controller, the base is provided with a first guide pulley, a second guide pulley and a first camera, the photovoltaic welding ribbon is slidingly connected to the first guide pulley and the second guide pulley at the same time, the first camera is used to shoot the width of the photovoltaic welding ribbon between the first guide pulley and the second guide pulley, the base is also provided with an X-axis track and a Y-axis track, the X-axis track is slidingly connected to the second camera, the Y-axis track is slidingly connected to the fixed seat, the fixed seat is rotatably connected to the wire wheel, one end of the photovoltaic welding ribbon is fixed on the wire wheel, the wire wheel rotates and winds the photovoltaic welding ribbon, the second camera is used to shoot the gap between the photovoltaic welding ribbons and the stacking thickness, the first camera and the second camera are both electrically connected to the controller; the controller is used to adjust the sliding speed of the fixed seat and the rotation speed of the wire wheel, thereby controlling the winding spacing of the photovoltaic welding ribbon.

[0012] Optionally, the fixed seat is connected to a first motor, which drives the fixed seat to move along the Y-axis track; the fixed seat is provided with a second motor, the second motor is connected to a first transmission wheel, the axle of the wire wheel is connected to a second transmission wheel, and a transmission belt is connected between the first transmission wheel and the second transmission wheel so that the second motor drives the wire wheel to rotate; the second camera is connected to a third motor, and the third motor drives the second camera to move along the X-axis track.

[0013] Optionally, a first bracket is provided on the base, and the first guide pulley, the second guide pulley and the first camera are all fixed on the first bracket, the first guide pulley is rotatably connected to the top of the photovoltaic welding ribbon, and the second guide pulley is rotatably connected to the bottom of the photovoltaic welding ribbon, and the photovoltaic welding ribbon between the first guide pulley and the second guide pulley is parallel to the horizontal plane so that the first camera can shoot the width of the photovoltaic welding ribbon, and a detection platform is provided on the first bracket, and a backlight source is installed on the detection platform, and the backlight source is used to illuminate the photovoltaic welding ribbon between the first guide pulley and the second guide pulley, and the first camera is located above the backlight source; a second bracket is provided on the base, and a linear light source is fixed on the second bracket, and the linear light source is used to illuminate the spacing of the photovoltaic welding ribbons on the linear pulley.

[0014] Optionally, a first abutment is rotatably connected to the fixed seat, a third bracket is provided on the fixed seat, a second abutment is provided on the third bracket, the first abutment and the second abutment are respectively clamped on the side walls at both ends of the spool, and the first abutment and the second abutment are both protruding with connecting blocks, and the connecting block is quickly inserted into the wheel axle hole of the spool to drive the spool to rotate; a mounting hole is provided on the third bracket, and an abutment portion and a connecting rod portion are provided on the second abutment, and the abutment portion is suitable for abutting one end side wall of the spool, and a bearing is sleeved on the connecting rod portion, and the bearing is installed in the mounting hole, and a spring is sleeved on the connecting rod portion, and the two ends of the spring abut the abutment portion and the bearing respectively, and the spring facilitates tightening or disassembling the spool.

[0015] Compared with the prior art, the photovoltaic ribbon automatic compensation winding device described in the present invention has the same advantages as the above-mentioned photovoltaic ribbon automatic compensation winding method based on optical measurement over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the photovoltaic ribbon automatic compensation winding device according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of middle part B;

[0019] Figure 4 for Figure 1 Enlarged view of part C in the middle.

[0020] Description of reference numerals:

[0021] 1. Base; 2. X-axis track; 21. Second camera; 22. Third motor; 3. Y-axis track; 31. First motor; 4. Fixed seat; 41. Second motor; 42. First transmission wheel; 43. Second transmission wheel; 44. Transmission belt; 5. Wire pulley; 6. First bracket; 61. First camera; 62. First guide pulley; 63. Second guide pulley; 64. Detection platform; 65. Backlight source; 7. Second bracket; 71. Linear light source; 8. Third bracket; 81. First abutment; 82. Second abutment; 821. Abutment portion; 822. Connecting rod portion; 83. Spring; 84. Bearing. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. A coordinate system XYZ is provided in the drawings of the embodiments of the present invention, wherein the positive direction of the X-axis represents the left, the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0025] The embodiment of the present invention provides a photovoltaic ribbon automatic compensation winding method based on optical measurement, combined with Figure 1-4 As shown, it includes a wire wheel 5, a first camera 61, a second camera 21, an X-axis track 2, a Y-axis track 3, and a fixed base 4. The first camera 61 is used to shoot the width of the linear photovoltaic welding ribbon to be wound, the second camera 21 is slidably connected to the X-axis track 2, and the second camera 21 is used to shoot the gap between the photovoltaic welding ribbons on the wire wheel 5 and the stacking thickness. The fixed base 4 is slidably connected to the Y-axis track 3, and the wire wheel 5 and the fixed base 4 are rotatably connected;

[0026] Suppose the rotation speed of the wire wheel 5 is S1, the moving speed of the wire wheel 5 along the Y axis driven by the fixed seat 4 is S2, the width of the photovoltaic welding ribbon is H, and the winding length of the wire wheel 5 during each rotation is L, then S2 / S1=H / L; the value of the rotation speed S1 of the wire wheel 5 is fixed, the value of H is calculated through the image pixel value taken by the first camera 61, and the value of S2 is calculated according to the real-time updated H and L, so as to adjust the moving speed S2 in real time to achieve the close arrangement of the photovoltaic welding ribbon on the wire wheel 5.

[0027] The rotation speed S1 of the reel 5 can represent the winding length per unit time. From the geometric relationship and speed analysis, it can be obtained that S2 / S1=H / L.

[0028] Compared with the existing technology, the automatic compensation winding method of photovoltaic welding tape based on optical measurement in the present invention can realize the function of automatic detection and dynamic compensation adjustment of the winding gap during the photovoltaic welding tape winding process, so that the surface of the finished wire wheel 5 is smooth, the gap between the photovoltaic welding tapes is uniform, and the quality of the finished product is high.

[0029] Optionally, assuming that the stackable radius of the wire wheel 5 is R, then L=2πR. When the photovoltaic welding tape on the wire wheel 5 is wound around the first layer, R is the radius of the wire wheel 5. When the photovoltaic welding tape on the wire wheel 5 is wound around one layer and starts to stack, the windable radius R of the wire wheel 5 increases, causing L to increase. The increased value of R is detected by the second camera 21, and S2 / S1=H / L is recalculated based on the updated L, so as to make real-time adjustments.

[0030] Optionally, a method for the second camera 21 to detect the increase in R is as follows: when the wire wheel 5 has not started winding, the position of the second camera 21 is adjusted so that the second camera 21 can capture and mark the edge position of the inner cylinder of the wire wheel 5 in the image, and the tangent of the edge position of the inner cylinder is used as the baseline for the image captured by the second camera 21; when the photovoltaic welding tape on the wire wheel 5 has completed one layer of winding and started to stack the nth layer, the second camera 21 is controlled to slide along the X-axis track 2 so that the tangent of the outermost photovoltaic welding tape on the wire wheel 5 is aligned with the baseline. At this time, the moving distance of the second camera 21 is the increase in R.

[0031] Optionally, the second method for the second camera 21 to detect the increase in R is as follows: when the wire wheel 5 has not started to wind, the position of the second camera 21 is adjusted so that the second camera 21 can shoot and calculate the edge position of the inner cylinder of the wire wheel 5 based on the pixel value, and the edge position of the inner cylinder is set as the initial moving position; when the photovoltaic welding tape on the wire wheel 5 has finished winding one layer and starts to stack the nth layer, the imaging position of the edge of the outermost circle photovoltaic welding tape on the wire wheel 5 on the second camera 21 is calculated and set as the nth layer position. At this time, the difference in pixel values ​​between the nth layer position and the initial moving position is the increase in R when stacking the nth layer.

[0032] Optionally, the first camera 61 measures the width of the photovoltaic ribbon. When the detection value suddenly changes significantly compared to the initial measured width value or the detection value is close to the thickness of the photovoltaic ribbon, it means that the photovoltaic ribbon is twisted. At this time, the winding work is stopped and an alarm is issued to remind manual inspection and adjustment.

[0033] Optionally, when the second camera 21 detects that the gap between the photovoltaic welding ribbons is large or irregular overlap occurs, the fixing seat 4 is controlled to move back along the Y-axis slide rail to the position before the error occurred, and the wire wheel 5 is rotated back to the position before the error occurred to rewind.

[0034] One end of the photovoltaic welding ribbon is fixed on the reel 5 for winding, and the other end is connected to the winding device (not shown). When the second camera 21 detects that the gap between the photovoltaic welding ribbons is large or irregular overlap occurs, the winding device and the reel 5 rewind at the same time to ensure that the photovoltaic welding ribbon is in a straight state.

[0035] like Figure 1 As shown, another embodiment of the present invention provides a photovoltaic welding ribbon automatic compensation winding device for realizing the photovoltaic welding ribbon automatic compensation winding method based on optical measurement as described above, including a base 1 and a controller (not shown), the base 1 is provided with a first guide pulley 62, a second guide pulley 63 and a first camera 61, the photovoltaic welding ribbon is slidingly connected to the first guide pulley 62 and the second guide pulley 63 at the same time, the first camera 61 is used to shoot the photovoltaic welding ribbon width between the first guide pulley 62 and the second guide pulley 63, and the base 1 is also provided with an X-axis track 2 and Y-axis track 3, a second camera 21 is slidably connected to the X-axis track 2, a fixed seat 4 is slidably connected to the Y-axis track 3, a wire wheel 5 is rotatably connected to the fixed seat 4, one end of the photovoltaic welding tape is fixed on the wire wheel 5, and the wire wheel 5 rotates and winds the photovoltaic welding tape, the second camera 21 is used to shoot the gap between the photovoltaic welding tapes and the stacking thickness, the first camera 61 and the second camera 21 are both electrically connected to the controller; the controller is used to adjust the sliding speed of the fixed seat 4 and the rotation speed of the wire wheel 5, so as to control the winding spacing of the photovoltaic welding tape.

[0036] Grating rulers and other distance measuring devices can be set on the X-axis track 2 and the Y-axis track 3 to measure the moving distance value of the second camera 21 on the X-axis track 2 and the moving distance value of the fixing seat 4 on the Y-axis track 3.

[0037] like Figure 1 and 3 As shown, optionally, the fixed seat 4 is connected to a first motor 31, and the first motor 31 drives the fixed seat 4 to move along the Y-axis track 3; a second motor 41 is provided on the fixed seat 4, and the second motor 41 is connected to a first transmission wheel 42, and a second transmission wheel 43 is connected to the axle of the wire wheel 5, and a transmission belt 44 is connected between the first transmission wheel 42 and the second transmission wheel 43, so that the second motor 41 drives the wire wheel 5 to rotate; the second camera 21 is connected to a third motor 22, and the third motor 22 drives the second camera 21 to move along the X-axis track 2.

[0038] like Figure 1 and 2As shown, optionally, a first bracket 6 is provided on the base 1, and the first guide pulley 62, the second guide pulley 63 and the first camera 61 are all fixed on the first bracket 6, the first guide pulley 62 is rotatably connected to the top of the photovoltaic welding strip, and the second guide pulley 63 is rotatably connected to the bottom of the photovoltaic welding strip, and the photovoltaic welding strip between the first guide pulley 62 and the second guide pulley 63 is parallel to the horizontal plane, so that the first camera 61 can shoot the width of the photovoltaic welding strip, and a detection platform 64 is provided on the first bracket 6, and a backlight source 65 is installed on the detection platform 64, and the backlight source 65 is used to illuminate the photovoltaic welding strip between the first guide pulley 62 and the second guide pulley 63, and the first camera 61 is located above the backlight source 65; a second bracket 7 is provided on the base 1, and a linear light source 71 is fixed on the second bracket 7, and the linear light source 71 is used to illuminate the spacing of the photovoltaic welding strips on the wire wheel 5.

[0039] like Figure 1 and 4 As shown, optionally, a first abutment 81 is rotatably connected to the fixed seat 4, and a third bracket 8 is provided on the fixed seat 4, and a second abutment 82 is provided on the third bracket 8, and the first abutment 81 and the second abutment 82 are respectively clamped on the side walls of both ends of the spool 5, and the first abutment 81 and the second abutment 82 are both convexly provided with connecting blocks, and the connecting block is quickly inserted into the wheel axle hole of the spool 5 to drive the spool 5 to rotate; the third bracket 8 is provided with a mounting hole, and the second abutment 82 is provided with an abutment portion 821 and a connecting rod portion 822, and the abutment portion 821 is suitable for abutting one end side wall of the spool 5, and the connecting rod portion 822 is sleeved with a bearing 84, and the bearing 84 is installed in the mounting hole, and the connecting rod portion 822 is sleeved with a spring 83, and the two ends of the spring 83 abut the abutment portion 821 and the bearing 84 respectively, and the spring 83 facilitates tightening or disassembling the spool 5.

[0040] like Figure 3 As shown, in this embodiment, the first abutment 81 is connected to the second transmission wheel 43 so that the second motor 41 can drive the first abutment 81 to rotate. An angle measuring device such as a shaft angle encoder can be provided on the first abutment 81 to measure the current rotation angle. The spring 83 provides elastic force for the compression pulley 5. When the pulley 5 needs to be removed, the second abutment 82 can be pulled axially away from the pulley 5, and the pulley 5 can be removed.

[0041] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A photovoltaic ribbon automatic compensation winding method based on optical measurement, characterized in that: The invention comprises a wire wheel (5), a first camera (61), a second camera (21), an X-axis track (2), a Y-axis track (3), and a fixed seat (4); the first camera (61) is used to photograph the width of the linear photovoltaic welding ribbon to be wound; the second camera (21) is slidably connected to the X-axis track (2); the second camera (21) is used to photograph the gaps between the photovoltaic welding ribbons on the wire wheel (5) and the stacking thickness; the fixed seat (4) is slidably connected to the Y-axis track (3); and the wire wheel (5) and the fixed seat (4) are rotatably connected; The rotation speed of the wire wheel (5) is set to S1, the moving speed of the wire wheel (5) driven by the fixed seat (4) along the Y axis is set to S2, the width of the photovoltaic welding ribbon is set to H, and the winding length of the wire wheel (5) during each rotation is set to L, then S2 / S1=H / L; the value of the rotation speed S1 of the wire wheel (5) is fixed, the value of H is calculated by the pixel value of the image captured by the first camera (61), and the value of S2 is calculated according to the real-time updated H and L, so as to adjust the moving speed S2 in real time to achieve close arrangement of the photovoltaic welding ribbon on the wire wheel (5); Assuming that the stackable radius of the wire wheel (5) is R, then L=2πR, when the photovoltaic welding ribbon on the wire wheel (5) is wound around the first layer, R is the radius of the wire wheel (5), and when the photovoltaic welding ribbon on the wire wheel (5) is wound around one layer and begins to be stacked, the windable radius R of the wire wheel (5) increases, causing L to increase, and the increased value of R is detected by the second camera (21), and S2 / S1=H / L is recalculated according to the updated L, thereby performing real-time adjustment; The method for the second camera (21) to detect the R increase value is as follows: when the wire wheel (5) has not started to be wound, the position of the second camera (21) is adjusted so that the second camera (21) can capture and mark the edge position of the inner cylinder of the wire wheel (5) in the image, and the tangent of the edge position of the inner cylinder is used as the baseline of the image captured by the second camera (21); when the photovoltaic welding tape on the wire wheel (5) is wound one layer and the nth layer is stacked, the second camera (21) is controlled to slide along the X-axis track (2) so that the tangent of the outermost photovoltaic welding tape on the wire wheel (5) is aligned with the baseline, and the moving distance of the second camera (21) at this time is the R increase value; Alternatively, when the wire wheel (5) has not started to be wound, the position of the second camera (21) is adjusted so that the second camera (21) can capture and calculate the edge position of the inner cylinder of the wire wheel (5) based on the pixel value, and the edge position of the inner cylinder is set as the initial moving position; when the photovoltaic welding ribbon on the wire wheel (5) has finished winding one layer and starts to stack the nth layer, the imaging position of the edge of the outermost photovoltaic welding ribbon on the wire wheel (5) on the second camera (21) is calculated and set as the nth layer position, and at this time, the difference in pixel value between the nth layer position and the initial moving position is the increase value of R when the nth layer is stacked.

2. The photovoltaic ribbon automatic compensation winding method based on optical measurement according to claim 1 is characterized in that: The first camera (61) measures the width of the photovoltaic ribbon. When the detected value suddenly changes significantly compared with the initial measured width value or the detected value is close to the thickness of the photovoltaic ribbon, it means that the photovoltaic ribbon is twisted. At this time, the winding work is stopped and an alarm is issued to remind manual inspection and adjustment.

3. The photovoltaic ribbon automatic compensation winding method based on optical measurement according to claim 1 is characterized in that: When the second camera (21) detects that the gap between the photovoltaic welding strips is large or irregular overlap occurs, the fixing seat (4) is controlled to move in the reverse direction along the Y-axis slide rail back to the position before the error occurred, and the wire wheel (5) is rotated in the reverse direction back to the position before the error occurred to rewind.

4. A photovoltaic ribbon automatic compensation winding device for implementing the photovoltaic ribbon automatic compensation winding method based on optical measurement according to any one of claims 1 to 3, characterized in that: The invention comprises a base (1) and a controller, wherein the base (1) is provided with a first guide pulley (62), a second guide pulley (63) and a first camera (61), the photovoltaic welding ribbon is slidably connected to the first guide pulley (62) and the second guide pulley (63), the first camera (61) is used to photograph the width of the photovoltaic welding ribbon between the first guide pulley (62) and the second guide pulley (63), the base (1) is further provided with an X-axis track (2) and a Y-axis track (3), the X-axis track (2) is slidably connected to the second camera (21), and the A fixed seat (4) is slidably connected to the Y-axis track (3), a wire wheel (5) is rotatably connected to the fixed seat (4), one end of the photovoltaic welding ribbon is fixed to the wire wheel (5), the wire wheel (5) rotates and winds the photovoltaic welding ribbon, the second camera (21) is used to photograph the gap between the photovoltaic welding ribbons and the stacking thickness, the first camera (61) and the second camera (21) are both electrically connected to the controller; the controller is used to adjust the sliding speed of the fixed seat (4) and the rotation speed of the wire wheel (5), thereby controlling the winding spacing of the photovoltaic welding ribbon.

5. The photovoltaic ribbon automatic compensation winding device according to claim 4, characterized in that: The fixing seat (4) is connected to a first motor (31), and the first motor (31) drives the fixing seat (4) to move along the Y-axis track (3); the fixing seat (4) is provided with a second motor (41), and the second motor (41) is connected to a first transmission wheel (42), and the wheel shaft of the wire wheel (5) is connected to a second transmission wheel (43), and a transmission belt (44) is connected between the first transmission wheel (42) and the second transmission wheel (43), so that the second motor (41) drives the wire wheel (5) to rotate; the second camera (21) is connected to a third motor (22), and the third motor (22) drives the second camera (21) to move along the X-axis track (2).

6. The photovoltaic ribbon automatic compensation winding device according to claim 4, characterized in that: The base (1) is provided with a first bracket (6), the first guide pulley (62), the second guide pulley (63) and the first camera (61) are all fixed on the first bracket (6), the first guide pulley (62) is rotatably connected to the top of the photovoltaic welding strip, the second guide pulley (63) is rotatably connected to the bottom of the photovoltaic welding strip, and the photovoltaic welding strip between the first guide pulley (62) and the second guide pulley (63) is parallel to the horizontal plane, so that the first camera (61) can shoot the width of the photovoltaic welding strip. The first bracket (6) is provided with a detection platform (64), and a backlight source (65) is installed on the detection platform (64). The backlight source (65) is used to illuminate the photovoltaic welding strip between the first guide pulley (62) and the second guide pulley (63), and the first camera (61) is located above the backlight source (65); the base (1) is provided with a second bracket (7), and a linear light source (71) is fixed on the second bracket (7). The linear light source (71) is used to illuminate the spacing between the photovoltaic welding strips on the wire wheel (5).

7. The photovoltaic ribbon automatic compensation winding device according to claim 4, characterized in that: The fixing seat (4) is rotatably connected with a first abutting member (81), the fixing seat (4) is provided with a third bracket (8), the third bracket (8) is provided with a second abutting member (82), the first abutting member (81) and the second abutting member (82) are respectively clamped on the side walls of both ends of the line wheel (5), the first abutting member (81) and the second abutting member (82) are both convexly provided with a connecting block, the connecting block is inserted into the wheel shaft hole of the line wheel (5) to drive the line wheel (5) to rotate; the third bracket (8) is provided with a The second abutting member (82) is provided with an abutting portion (821) and a connecting rod portion (822), the abutting portion (821) is suitable for abutting against one end side wall of the line wheel (5), the connecting rod portion (822) is sleeved with a bearing (84), the bearing (84) is installed in the mounting hole, the connecting rod portion (822) is sleeved with a spring (83), the two ends of the spring (83) respectively abut against the abutting portion (821) and the bearing (84), and the spring (83) is convenient for tightening or disassembling the line wheel (5).

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