Four-station solar cell panel production line

Abstract

The utility model relates to the technical field of solar cell panel processing, in particular to a four-station solar cell panel production line. The laser machining system comprises a feeding assembly line, a discharging assembly line and a four-station laser machining platform, and the feeding assembly line sequentially comprises a basket lifting mechanism, an alignment mechanism, a cache mechanism, a defect detection mechanism and a feeding and discharging rotary disc according to the feeding sequence; the discharging assembly line sequentially comprises a feeding and discharging rotary disc, a defect detection mechanism, a cache mechanism, an NG collection mechanism, an alignment mechanism and a basket lifting mechanism according to the discharging sequence, the laser machining platform comprises a machining rotary disc, a positioning CCD module, a first laser machining module and a second laser machining module, and four stations are arranged around the machining rotary disc; the four stations are in butt joint with the feeding and discharging rotary disc, the positioning CCD module, the first laser machining module and the second laser machining module in sequence according to the machining sequence. Two groups of laser processing of the same solar cell panel can be completed through feeding and discharging operation on one assembly line, the occupied volume of the whole machine equipment is reduced, and the overall production efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell panel processing, in particular to a four-station solar cell panel production line. Background Art

[0002] Solar panels are energy converters that convert light energy into electrical energy through a photoelectric reaction. Solar panel conversion efficiency is a key factor in reducing photovoltaic costs. Traditional solar panel production equipment generally utilizes a single laser processing system. However, with increasing demands for higher photoelectric conversion efficiency in solar panels, traditional single-laser processing methods are no longer sufficient. Consequently, different laser types are used to process the same solar panel in separate steps. However, if two laser types were to be processed directly on traditional laser processing equipment, the two laser processing lines would need to be docked and repeatedly loaded and unloaded to meet the requirements of both laser processes. This processing method not only occupies a large equipment footprint but also reduces overall production efficiency. Therefore, integrating these two sets of laser processing equipment into a single production line has become a research area. Utility Model Content

[0003] The utility model provides a four-station solar cell panel production line, aiming to solve the problems of large occupied volume and low production efficiency in existing multi-laser processing lines.

[0004] The utility model provides a four-station solar panel production line, comprising a loading line, a unloading line, and a four-station laser processing platform. The loading line comprises, in order of loading, a basket lifting mechanism, a positioning mechanism, a buffer mechanism, a defect detection mechanism, and a loading and unloading turntable. The unloading line comprises, in order of loading, a unloading turntable, a defect detection mechanism, a buffer mechanism, an NG collection mechanism, an alignment mechanism, and a basket lifting mechanism. The laser processing platform comprises a processing turntable, a positioning CCD module, a first laser processing module, and a second laser processing module. Four stations are arranged around the processing turntable. In order of processing, the four stations are connected to the loading and unloading turntable, the positioning CCD module, the first laser processing module, and the second laser processing module in sequence.

[0005] As a further improvement of the present invention, the processing turntable includes a turntable mounting plate, a processing motor, a cross-shaped rotating frame, an adsorption bracket, a vacuum air pipe, and a rotating frame. The processing motor is connected to the turntable mounting plate, and the output shaft of the processing motor is connected to the center of the cross-shaped rotating frame. A processing platform is provided at each of the four ends of the cross-shaped rotating frame, and at least one adsorption bracket is provided on each processing platform. A vacuum cavity is provided inside the adsorption bracket, and a plurality of vacuum suction holes are provided on the surface of the adsorption bracket. The plurality of vacuum suction holes are connected to the vacuum cavity, one end of the vacuum air pipe is connected to the vacuum cavity, and the other end of the vacuum air pipe is connected to the vacuum generator and the vacuum detection device through the rotating frame.

[0006] As a further improvement of the present invention, the positioning CCD module includes a CCD camera and a CCD bracket. The CCD bracket is installed on the second workstation of the processing turntable. The CCD camera is connected to the CCD bracket. The lens of the CCD camera is aligned with the solar panel placed on the processing turntable.

[0007] As a further improvement of the present invention, the first laser processing module includes a first laser base, a first optical path generator, and a first galvanometer. The first laser base is mounted on the third station of the processing turntable. The first optical path generator is connected to the first laser base. The light inlet of the first galvanometer is connected to the first optical path generator, and the light outlet of the first galvanometer is aligned with the solar cell panel placed on the processing turntable.

[0008] The second laser processing module includes a second laser base, a second optical path generator, and a second galvanometer. The second laser base is installed on the fourth workstation of the processing turntable. The second optical path generator is connected to the second laser base. The light inlet of the second galvanometer is connected to the second optical path generator, and the light outlet of the second galvanometer is aligned with the solar cell panel placed on the processing turntable.

[0009] As a further improvement of the present invention, the loading and unloading turntable includes a loading and unloading motor, a first swing arm, a second swing arm, and an loading and unloading suction cup. One end of the first swing arm and the second swing arm are connected at an angle, and the intersection of the first swing arm and the second swing arm is connected to the output shaft of the loading and unloading motor. The other ends of the first swing arm and the second swing arm are both connected to the loading and unloading suction cup, and the loading and unloading motor drives the first swing arm and the second swing arm to rotate synchronously.

[0010] As a further improvement of the present invention, the defect detection mechanism includes a defect detection bracket and a defect detection camera. The defect detection bracket spans above the loading and unloading assembly lines. Two groups of defect detection cameras are installed on the defect detection bracket, which are respectively aimed at the loading and unloading assembly lines.

[0011] As a further improvement of the present invention, the cache mechanism includes a cache mounting frame, a cache lifting module, a material frame, an adjustment plate, and a support rod. The cache lifting module is connected to the cache mounting frame, the material frame is connected to the cache lifting module, the material frame is docked with the loading and unloading assembly line, and the material frame is provided with at least two relative adjustment plates. Each of the adjustment plates is provided with multiple layers of cache areas for placing silicon wafers. Each layer of cache areas of the multiple adjustment plates corresponds to each other in the same horizontal direction, and each of the cache areas is provided with at least two support rods in the horizontal direction to support the silicon wafers.

[0012] As a further improvement of the present invention, the NG collection mechanism includes an NG material cylinder, an NG material suction cup, and an NG material tray. The NG material cylinder and the NG material tray are both arranged on one side of the unloading assembly line. The NG material suction cup is connected to the output end of the NG material cylinder. The NG material cylinder drives the NG material suction cup to move between the unloading assembly line and the NG material tray.

[0013] As a further improvement of the present invention, the alignment mechanism includes an alignment bracket, an alignment motor, a connecting rod, an alignment swing arm, a clamping arm, an alignment roller, a clamping position sensor, an alignment guide rail, and an alignment slider. The alignment motor is installed on the alignment bracket, and the two groups of clamping arms are slidably connected to the alignment bracket. The middle part of the alignment swing arm is connected to the output shaft of the alignment motor. The two ends of the alignment swing arm are respectively hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the clamping arm. The alignment roller is connected to the clamping arm, and the clamping position sensor is connected to the alignment bracket and senses the rotation angle of the alignment swing arm. The alignment guide rail is fixed on the alignment bracket, and the clamping arm is fixed on the alignment slider. The alignment slider is cooperatively connected to the alignment guide rail.

[0014] As a further improvement of the present invention, the flower basket lifting mechanism includes a flower basket lifting module, a lifting mounting plate, a lifting assembly line, a pressing module, and a transverse transmission module. The lifting mounting plate is slidably connected to the flower basket lifting module, and the lifting assembly line and the pressing module are respectively connected to the lower and upper parts of the lifting mounting plate. The pressing module includes a pressing drive motor and a side positioning plate. The side positioning plate is connected to the pressing drive motor. During loading and unloading, the flower basket is located on the lifting assembly line. The pressing drive motor drives the side positioning plate to press on the top of the flower basket and guide the flower basket. The transverse transmission module is arranged between the flower basket lifting mechanisms of the loading assembly line and the unloading assembly line.

[0015] The beneficial effect of the present invention is that: by utilizing the structure of a four-station processing turntable, two groups of laser processing modules are integrated around the same processing turntable, so that the same solar cell panel can be processed by two groups of lasers by one assembly line through loading and unloading operations, which reduces the occupied volume of the entire equipment and improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the solar panel production line of the utility model;

[0017] Figure 2 This is a top view of the structure of the solar panel production line of the utility model;

[0018] Figure 3 This is the overall structural diagram of the laser processing platform in the utility model;

[0019] Figure 4 This is a structural diagram of the processing turntable from the top perspective in the utility model;

[0020] Figure 5 This is a structural diagram of the bottom perspective of the processing turntable in the utility model;

[0021] Figure 6 This is a structural diagram of the loading and unloading turntable in the utility model;

[0022] Figure 7 It is a structural diagram of the defect detection mechanism in the utility model;

[0023] Figure 8 It is a structural diagram of the cache mechanism in the utility model;

[0024] Figure 9 This is a structural diagram of the NG collection mechanism in the present utility model;

[0025] Figure 10 It is a structural diagram of the alignment mechanism in the utility model;

[0026] Figure 11 It is a structural diagram of the flower basket lifting mechanism of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 and Figure 2As shown, the utility model is a four-station solar panel production line, including a loading line, a unloading line, and a four-station laser processing platform. The loading line includes a flower basket lifting mechanism 1, a positioning mechanism 2, a cache mechanism 3, a defect detection mechanism 4, and a loading and unloading turntable 5 in the loading order. The unloading line includes an loading and unloading turntable 5, a defect detection mechanism 4, a cache mechanism 3, an NG collection mechanism 6, an alignment mechanism 2, and a flower basket lifting mechanism 1 in the loading order. The laser processing platform includes a processing turntable 7, a positioning CCD module 8, a first laser processing module 9, and a second laser processing module 10. Four stations are arranged around the processing turntable 7. The four stations are connected to the loading and unloading turntable 5, the positioning CCD module 8, the first laser processing module 9, and the second laser processing module 10 in sequence in the processing order.

[0029] The solar panel raw material passes through the basket lifting mechanism 1, the alignment mechanism 2, the buffer mechanism 3, the defect detection mechanism 4, and the loading and unloading turntable 5 and is then sent to the processing turntable 7. The processing turntable 7 drives the solar panel raw material to rotate to the positioning CCD module 8, the first laser processing module 9, and the second laser processing module 10 in sequence to complete visual positioning and two laser processing steps to form the raw material. The processing turntable 7 then sends the solar panel raw material to the unloading line via the loading and unloading turntable 5. The raw material then passes through the defect detection mechanism 4, the buffer mechanism 3, the NG collection mechanism 6, the alignment mechanism 2, and the basket lifting mechanism 1 to complete the unloading of the solar panel raw material. The layout of the two laser processing modules and the processing turntable 7 allows two sets of laser processing processes to be completed on a single loading and unloading line. This achieves high integration, reduces the size and space occupied by the entire machine, and allows the processing to be completed in one go, improving production efficiency.

[0030] like Figures 3 to 5 As shown, the processing turntable 7 includes a turntable mounting plate 71, a processing motor 72, a cross-shaped rotating frame 73, an adsorption bracket 74, a vacuum air pipe 75, and a rotating frame 76. The processing motor 72 is connected to the turntable mounting plate 71, and the output shaft of the processing motor 72 is connected to the center of the cross-shaped rotating frame 73. There is a processing platform at each of the four ends of the cross-shaped rotating frame 73, and at least one adsorption bracket 74 is provided on each processing platform. A vacuum cavity is provided inside the adsorption bracket 74, and a plurality of vacuum suction holes are provided on the surface of the adsorption bracket 74. The plurality of vacuum suction holes are connected to the vacuum cavity. One end of the vacuum air pipe 75 is connected to the vacuum cavity, and the other end of the vacuum air pipe 75 is connected to the vacuum generator and the vacuum detection device through the rotating frame 76.

[0031] The four ends of the cross-shaped rotating frame 73 serve as processing platforms for adsorbing solar panels. The positions of the four processing platforms are exactly aligned with the loading and unloading equipment, the positioning CCD module 8, the first laser processing module 9, and the second laser processing module 10, so as to achieve the simultaneous loading and unloading operations, visual positioning, the first laser processing, and the second laser processing operations. The processing motor 72 is used to drive the cross-shaped rotating frame 73 to rotate in the direction of the processing sequence, with each rotation angle being 90°, ensuring that after each rotation, the solar panel can be accurately aligned with the equipment of the next operation process. The suction mechanism evacuates the adsorption bracket 74 to maintain a negative pressure on the surface of the adsorption bracket 74, so that the solar panel can be firmly adsorbed.

[0032] The adsorption bracket 74 has a grid-like structure, with multiple vacuum holes evenly spaced along the centerline of the grid. The overall grid-like shape of the adsorption bracket 74 reduces overall weight while maintaining a certain level of strength and rigidity. The grid-like arrangement facilitates laser processing, allowing heat generated by the laser to dissipate quickly, thereby reducing the impact of processing heat.

[0033] Each laser power meter 77 corresponds to an adsorption bracket 74 on a laser processing station and is used to regularly detect the laser power attenuation of the laser. If the attenuation value exceeds the allowable value, an alarm is issued and the laser power is adjusted.

[0034] like Figure 3 As shown, the positioning CCD module 8 includes a CCD camera 82 and a CCD bracket 81. The CCD bracket 81 is mounted on the second station of the processing turntable 7. The CCD camera 82 is connected to the CCD bracket 81, and the lens of the CCD camera 82 is aligned with the solar panel placed on the processing turntable 7. The CCD bracket 81 is used to fix the CCD camera 82 so that the CCD camera 82 has a certain visual height to capture the image of the solar panel on the processing turntable 7, thereby locating the position on the solar panel that requires laser processing.

[0035] The first laser processing module 9 includes a first laser base 91, a first optical path generator 92, and a first galvanometer 93. The first laser base 91 is mounted on the third workstation of the processing turntable 7. The first optical path generator 92 is connected to the first laser base 91. The light inlet of the first galvanometer 93 is aligned with the first optical path generator 92, and the light outlet of the first galvanometer 93 is aligned with the solar panel placed on the processing turntable 7. The first laser base 91 can support the first optical path generator 92 and the first galvanometer 93, so that the laser can be used to process the solar panel on the processing turntable 7 from top to bottom. The first optical path generator 92 can be selected according to the specific processing needs. The laser light generated by the first optical path generator 92 passes through the first galvanometer 93 and is projected onto the surface of the solar panel, achieving the first laser processing.

[0036] The second laser processing module 10 includes a second laser base 101, a second optical path generator 102, and a second galvanometer 103. The second laser base 101 is mounted on the fourth station of the processing turntable 7. The second optical path generator 102 is connected to the second laser base 101. The light inlet of the second galvanometer 103 is docked with the second optical path generator 102, and the light outlet of the second galvanometer 103 is aligned with the solar panel placed on the processing turntable 7. The second laser base 101 supports the second optical path generator 102 and the second galvanometer 103, so that the laser can be processed from top to bottom on the solar panel on the processing turntable 7. The second optical path generator 102 can be selected according to the specific processing needs. The laser light generated by the second optical path generator 102 passes through the second galvanometer 103 and is projected onto the surface of the solar panel, achieving the second laser processing.

[0037] like Figure 6 As shown, the loading and unloading turntable 5 includes a loading and unloading motor 51, a first swing arm 52, a second swing arm 53, and an loading and unloading suction cup 54. One end of the first swing arm 52 and the second swing arm 53 are connected at an angle, and the intersection of the first swing arm 52 and the second swing arm 53 is connected to the output shaft of the loading and unloading motor 51. The other ends of the first swing arm 52 and the second swing arm 53 are connected to the loading and unloading suction cup 54. The loading and unloading motor 51 drives the first swing arm 52 and the second swing arm 53 to rotate synchronously.

[0038] The loading and unloading turntable 5 is driven by a loading and unloading motor 51 at the intersection of a first swing arm 52 and a second swing arm 53, thereby synchronously driving the rotation of the first and second swing arms 52, 53. The loading and unloading suction cup 54 of the first swing arm 52 grabs the solar panel on the loading line and moves it to the processing turntable 7. Simultaneously, the loading and unloading suction cup 54 of the second swing arm 53 grabs the solar panel on the processing turntable 7 and moves it to the unloading line. With the drive of a single loading and unloading motor 51, processes that previously required two mechanisms can be completed, reducing the number of equipment used and saving costs.

[0039] like Figure 7 As shown, the defect detection mechanism 4 includes a defect detection bracket 41 and a defect detection camera 42. The defect detection bracket 41 spans above the loading and unloading lines. Two sets of defect detection cameras 42 are mounted on the defect detection bracket 41, aiming at the loading and unloading lines, respectively. The defect detection bracket 41 is used to fix the defect detection cameras 42, allowing them to capture images of the solar panels on the loading and unloading lines at a certain visual height. This allows the cameras to determine whether there are any broken pieces or hidden cracks on the solar panels. Defective solar panels will be removed from the loading and unloading lines in subsequent operations.

[0040] like Figure 8As shown, the cache mechanism 3 includes a cache mounting frame 31, a cache lifting module 32, a material frame 33, an adjustment plate 34, and a support rod 35. The cache lifting module 32 is connected to the cache mounting frame 31, and the material frame 33 is connected to the cache lifting module 32. The material frame 33 is docked with the loading and unloading assembly lines. At least two opposing adjustment plates 34 are provided on the material frame 33. Each adjustment plate 34 is provided with multiple layers of cache areas for placing silicon wafers. Each layer of cache areas of the multiple adjustment plates 34 corresponds to each other in the same horizontal direction. Each cache area is provided with at least two support rods 35 in the horizontal direction to support the silicon wafers.

[0041] The buffer lifting module 32 is used to drive the material frame 33 to rise and fall vertically. Each time a solar panel is stored, the buffer lifting module 32 will rise one layer, and each time a solar panel is released, the buffer lifting module 32 will fall one layer. The adjustment plate 34 is fixed to the material frame 33 after adjusting its position. The support component on the adjustment plate 34 adopts a support rod 35 structure. By using a multi-point contact method, while ensuring that the solar panel can be supported, there is no space for debris to remain at the contact points, which can reduce the fragmentation rate. Even if there is debris, it will not be retained in the interlayer. The structure is simple, compact, and easy to maintain. When the solar panels on the loading and unloading line cannot be processed in time and a backlog occurs, the extra solar panels can be sent to each layer of support rods 35 in the material frame 33 for storage. When the loading and unloading line is idle, the buffered solar panels can be released for loading or unloading.

[0042] like Figure 9 As shown, the NG collection mechanism 6 includes an NG material cylinder 61, an NG material suction cup 62, and an NG material tray 63. The NG material cylinder 61 and the NG material tray 63 are both arranged on one side of the unloading assembly line. The NG material suction cup 62 is connected to the output end of the NG material cylinder 61. The NG material cylinder 61 drives the NG material suction cup 62 to move between the unloading assembly line and the NG material tray 63. When a defective solar panel is detected and sent to the assembly line connected to the NG collection mechanism 6, the NG material cylinder 61 will drive the NG material suction cup 62 to move to the defective solar panel, suck the solar panel from the assembly line, and send it to the NG material tray 63 for storage, so that the defective solar panel will no longer enter the normal production line and cause defective products to appear in the output.

[0043] like Figure 10As shown, the alignment mechanism 2 includes an alignment bracket 21, an alignment motor 22, a connecting rod 23, an alignment swing arm 24, a clamping arm 25, an alignment roller 26, a clamping position sensor 291, an alignment guide rail 27, and an alignment slider 28. The alignment motor 22 is installed on the alignment bracket 21, and two groups of clamping arms 25 are slidably connected to the alignment bracket 21. The middle part of the alignment swing arm 24 is connected to the output shaft of the alignment motor 22. The two ends of the alignment swing arm 24 are respectively hinged to one end of a connecting rod 23, and the other end of the connecting rod 23 is hinged to the clamping arm 25. The alignment roller 26 is connected to the clamping arm 25. The clamping position sensor 291 is connected to the alignment bracket 21 and senses the rotation angle of the alignment swing arm 24. The alignment guide rail 27 is fixed on the alignment bracket 21, the clamping arm 25 is fixed on the alignment slider 28, and the alignment slider 28 is cooperatively connected to the alignment guide rail 27.

[0044] The alignment mechanism 2 is set at the loading and unloading assembly line. After the solar panel is transported to the alignment mechanism 2, the alignment swing arm 24 is driven to swing by the alignment motor 22, and the clamping arm 25 is driven to move along the alignment guide rail 27 through the connecting rod 23 to center and clamp the solar panel, thereby realizing the centering of the solar panel and improving the position consistency of the solar panel.

[0045] The alignment mechanism 2 also includes two front-to-back symmetrical edge-finding sensor units 292, which are connected to the alignment bracket 21 through a mounting frame. The two front-to-back symmetrical edge-finding sensor units 292 are arranged on the front and rear sides of one of the clamping arms 25. The front-to-back direction is the conveying direction of the solar cell panels on the loading and unloading conveyor belt, and the left-to-right direction is perpendicular to the conveying direction of the conveyor belt for conveying the solar cell panels. The two clamping arms 25 are symmetrically arranged along the central axis of the conveying mechanism for conveying sheet materials.

[0046] The edge-finding sensor unit 292 can be used to detect whether the solar panel is misaligned, deviated, or has a beveled edge. When both edge-finding sensor units 292 detect the solar panel, it means that the edges of the solar panel are neatly aligned. When only one edge-finding sensor unit 292 detects the solar panel, it means that the position of the solar panel is deviated, there is a beveled edge, and the alignment is misaligned. At this time, an alarm prompt is given.

[0047] like Figure 11As shown, the flower basket lifting mechanism 1 includes a flower basket lifting module 12, a lifting mounting plate 11, a lifting assembly line 13, a pressing module, and a transverse transmission module 16. The lifting mounting plate 11 is slidably connected to the flower basket lifting module 12. The lifting assembly line 13 and the pressing module are respectively connected to the lower and upper parts of the lifting mounting plate 11. The pressing module includes a pressing drive motor 14 and a side positioning plate 15. The side positioning plate 15 is connected to the pressing drive motor 14. When loading and unloading, the flower basket is located on the lifting assembly line 13. The pressing drive motor 14 drives the side positioning plate 15 to press on the top of the flower basket and guide the flower basket. The transverse transmission module 16 is arranged between the flower basket lifting mechanism 1 of the loading assembly line and the unloading assembly line.

[0048] One end of the lifting assembly line 13 is connected to the flower basket feeding assembly line, which is used to receive flower baskets filled with raw solar panel materials or send out flower baskets filled with clinker solar panel materials. The other end of the lifting assembly line 13 is connected to the solar panel conveying assembly line, which is used to remove the raw solar panel materials from the flower basket piece by piece for processing, or to load the processed clinker solar panel materials into empty flower baskets piece by piece. The flower basket lifting module 12 drives the lifting assembly line 13 to move vertically. Since the solar panels in the flower basket are placed layer by layer, when the flower basket is on the lifting assembly line 13, the flower basket lifting module 12 will gradually rise and fall according to the set distance. After a layer of solar panels in the flower basket is removed by the connected assembly line, the flower basket lifting module 12 drives the flower basket to rise by one layer, so that the new layer of solar panels can be connected to the assembly line. And so on, until all the raw solar panel materials in the flower basket are removed or the flower basket is filled with clinker solar panels. The transverse conveying module 16 is used to transversely convey and cache the empty flower baskets after the feeding is completed on the loading line. After the flower baskets on the unloading line are filled with clinker and taken away, the empty flower baskets on the transverse conveying module 16 can be sent to the lifting line 13 on the unloading line for loading the next batch of solar panel clinker.

[0049] The working principle of this four-station solar panel production line is:

[0050] (1) Loading line: The basket filled with raw solar panels is sent to the lifting line 13 of the basket lifting mechanism 1. After the pressing module fixes the basket, the basket lifting module 12 descends layer by layer to place each solar panel on the conveyor belt in turn; the positioning mechanism 2 centers the solar panels on the conveyor belt and then conveys them backward; at this time, if there is no backlog of solar panels on the loading line, the solar panels will pass through the buffer mechanism 3 directly. If there is a backlog of solar panels on the loading line, the extra solar panels will be temporarily stored in the buffer mechanism 3. After the backlog on the line is relieved, the solar panels in the buffer mechanism 3 will be released one by one; the defect detection mechanism 4 performs visual scanning on the passing solar panels to determine whether the solar panels have broken pieces or hidden cracks, and if so, feedback the relevant signals of the defective solar panels; the loading and unloading turntable 5 grabs the raw solar panels from the loading line and transfers them to the processing turntable 7, and at the same time transfers the solar panel clinker on the processing turntable 7 to the unloading line.

[0051] (2) Laser processing platform: The loading and unloading turntable 5 places the raw material of the solar panel on the adsorption bracket 74 on the first station of the processing turntable 7. The vacuum generator evacuates the adsorption bracket 74 through the vacuum air pipe 75 so that the solar panel can be fixed; the motor drives the cross-shaped rotating frame 73 to rotate 90 degrees, and the solar panel is located under the CCD camera 82. The CCD camera 82 collects the image of the solar panel and locates the processing area on the solar panel and transmits the signal to the first laser processing module 9 and the second laser processing module 10; after the positioning is completed, the motor drives the cross-shaped rotating frame 73 to continue to rotate 90 degrees, and the solar panel is located under the first laser processing module 9 , the first optical path generator 92 emits a laser, which is projected onto the surface of the solar panel for processing through the first galvanometer 93; after the first laser processing is completed, the motor drives the cross-shaped rotating frame 73 to continue to rotate 90°, and the solar panel is located under the second laser processing module 10, and the second optical path generator 102 emits a laser, which is projected onto the surface of the solar panel for processing through the second galvanometer 103; after the second laser processing is completed, the motor drives the cross-shaped rotating frame 73 to continue to rotate 90° and return to the first station. At this time, the loading and unloading equipment transports and unloads the solar panel clinker after laser processing, and at the same time places the new solar panel raw material on the cross-shaped rotating frame 73 of the first station.

[0052] (3) Unloading line: After receiving the solar panel clinker transferred by the unloading and unloading turntable 5, the defect detection mechanism 4 performs a visual scanning inspection on the solar panel passing through to determine whether the solar panel has broken pieces or hidden cracks, and feedbacks the defect signal; at this time, if there is no backlog of solar panels on the unloading line, the solar panels directly pass through the buffer mechanism 3. If there is a backlog of solar panels on the unloading line, the extra solar panels are temporarily stored in the buffer mechanism 3, and the solar panels in the buffer mechanism 3 are released one by one after the backlog on the line is alleviated; the NG collection mechanism 6 grabs the solar panels that are judged to have defects and places them in the NG material tray 63, and the solar panel clinker without defects enters the alignment mechanism 2. After the alignment mechanism 2 centers the solar panel on the conveyor belt, it is sent one by one into the empty basket. After the empty basket is filled with solar panel clinker, the basket is taken away, and the transverse conveying module 16 sends another empty basket to the lifting line 13 of the unloading line for loading the next batch of solar panel clinker.

[0053] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A four-station solar panel production line, characterized in that: It includes a loading line, a unloading line, and a four-station laser processing platform. The loading line includes a flower basket lifting mechanism, a positioning mechanism, a cache mechanism, a defect detection mechanism, and a loading and unloading turntable in the loading order. The unloading line includes a loading and unloading turntable, a defect detection mechanism, a cache mechanism, an NG collection mechanism, an alignment mechanism, and a flower basket lifting mechanism in the loading order. The laser processing platform includes a processing turntable, a positioning CCD module, a first laser processing module, and a second laser processing module. Four stations are arranged around the processing turntable. The loading and unloading turntable, the positioning CCD module, the first laser processing module, and the second laser processing module are docked in sequence at the four stations in the processing order.

2. The four-station solar panel production line according to claim 1, characterized in that: The processing turntable includes a turntable mounting plate, a processing motor, a cross-shaped rotating frame, an adsorption bracket, a vacuum air pipe, and a rotary frame. The processing motor is connected to the turntable mounting plate, and the output shaft of the processing motor is connected to the center of the cross-shaped rotating frame. Each of the four ends of the cross-shaped rotating frame is provided with a processing platform, and each processing platform is provided with at least one adsorption bracket. A vacuum cavity is provided inside the adsorption bracket, and a plurality of vacuum suction holes are provided on the surface of the adsorption bracket. The plurality of vacuum suction holes are connected to the vacuum cavity, one end of the vacuum air pipe is connected to the vacuum cavity, and the other end of the vacuum air pipe is connected to the vacuum generator and the vacuum detection device through the rotary frame.

3. The four-station solar panel production line according to claim 1, characterized in that: The positioning CCD module includes a CCD camera and a CCD bracket. The CCD bracket is installed on the second station of the processing turntable. The CCD camera is connected to the CCD bracket. The lens of the CCD camera is aligned with the solar cell panel placed on the processing turntable.

4. The four-station solar panel production line according to claim 1, characterized in that: The first laser processing module includes a first laser base, a first optical path generator, and a first galvanometer. The first laser base is installed on the third station of the processing turntable. The first optical path generator is connected to the first laser base. The light inlet of the first galvanometer is connected to the first optical path generator, and the light outlet of the first galvanometer is aligned with the solar cell panel placed on the processing turntable. The second laser processing module includes a second laser base, a second optical path generator, and a second galvanometer. The second laser base is installed on the fourth workstation of the processing turntable. The second optical path generator is connected to the second laser base. The light inlet of the second galvanometer is connected to the second optical path generator, and the light outlet of the second galvanometer is aligned with the solar cell panel placed on the processing turntable.

5. The four-station solar panel production line according to claim 1, characterized in that: The loading and unloading turntable includes a loading and unloading motor, a first swing arm, a second swing arm, and a loading and unloading suction cup. One end of the first swing arm and the second swing arm are connected at an angle, and the intersection of the first swing arm and the second swing arm is connected to the output shaft of the loading and unloading motor. The other ends of the first swing arm and the second swing arm are connected to the loading and unloading suction cup, and the loading and unloading motor drives the first swing arm and the second swing arm to rotate synchronously.

6. The four-station solar panel production line according to claim 1, characterized in that: The defect detection mechanism includes a defect detection bracket and a defect detection camera. The defect detection bracket spans above the loading and unloading assembly lines. Two groups of defect detection cameras are installed on the defect detection bracket and are respectively aimed at the loading and unloading assembly lines.

7. The four-station solar panel production line according to claim 1, characterized in that: The cache mechanism includes a cache mounting frame, a cache lifting module, a material frame, an adjustment plate, and a support rod. The cache lifting module is connected to the cache mounting frame, the material frame is connected to the cache lifting module, the material frame is docked with the loading and unloading assembly line, and the material frame is provided with at least two opposing adjustment plates. Each adjustment plate is provided with multiple layers of cache areas for placing silicon wafers. Each layer of cache areas of the multiple adjustment plates corresponds to each other in the same horizontal direction, and each cache area is provided with at least two support rods in the horizontal direction to support the silicon wafers.

8. The four-station solar panel production line according to claim 1, characterized in that: The NG collection mechanism includes an NG material cylinder, an NG material suction cup, and an NG material tray. The NG material cylinder and the NG material tray are both arranged on one side of the unloading assembly line. The NG material suction cup is connected to the output end of the NG material cylinder. The NG material cylinder drives the NG material suction cup to move between the unloading assembly line and the NG material tray.

9. The four-station solar panel production line according to claim 1, characterized in that: The alignment mechanism includes an alignment bracket, an alignment motor, a connecting rod, an alignment swing arm, a clamping arm, an alignment roller, a clamping position sensor, an alignment guide rail, and an alignment slider. The alignment motor is installed on the alignment bracket, and the two groups of clamping arms are slidably connected to the alignment bracket. The middle part of the alignment swing arm is connected to the output shaft of the alignment motor. The two ends of the alignment swing arm are respectively hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the clamping arm. The alignment roller is connected to the clamping arm, and the clamping position sensor is connected to the alignment bracket and senses the rotation angle of the alignment swing arm. The alignment guide rail is fixed on the alignment bracket, and the clamping arm is fixed on the alignment slider. The alignment slider is cooperatively connected to the alignment guide rail.

10. The four-station solar panel production line according to claim 1, characterized in that: The flower basket lifting mechanism includes a flower basket lifting module, a lifting mounting plate, a lifting assembly line, a pressing module, and a transverse transmission module. The lifting mounting plate is slidably connected to the flower basket lifting module. The lifting assembly line and the pressing module are respectively connected to the lower and upper parts of the lifting mounting plate. The pressing module includes a pressing drive motor and a side positioning plate. The side positioning plate is connected to the pressing drive motor. During loading and unloading, the flower basket is located on the lifting assembly line. The pressing drive motor drives the side positioning plate to press on the top of the flower basket and guide the flower basket. The transverse transmission module is arranged between the flower basket lifting mechanisms of the loading assembly line and the unloading assembly line.

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