Photovoltaic module assembly production line

Abstract

The utility model discloses a photovoltaic module assembly production line, and relates to the field of photovoltaic modules. Comprising a conveying unit, a first face detection unit, an overturning unit, a second face detection unit, a grading channel and a grading area, and the conveying unit conveys the photovoltaic module to the first face detection unit, the overturning unit and the second face detection unit in the forward direction in sequence so as to detect the first face and the second face of the photovoltaic module; and the photovoltaic modules subjected to spot check are reversely conveyed to the grading channel through the conveying unit and enter the grading area through the grading channel. According to the utility model, the photovoltaic module can be directly subjected to spot check at the tail end of the conveying unit, manual spot check after the photovoltaic module is off line is not needed, and the spot check efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic components, and in particular to a photovoltaic component assembly production line. Background Art

[0002] Photovoltaic cell manufacturing technology is constantly developing. In order to ensure the competitiveness of photovoltaic cells and their components in the market, high-end technologies of ultra-high production capacity and high-quality photovoltaic components have become the industry's competitive goal.

[0003] At present, photovoltaic modules have entered the intelligent manufacturing industry. On the production line, various testing equipment such as pre-layer EL, post-layer EL, and final inspection unit are mostly used to test the quality of photovoltaic modules produced by the production line. Despite this, in order to ensure high quality control, some companies will conduct manual sampling inspections on photovoltaic modules that have been packaged and have been rolled off the production line. The current manual sampling inspection requires manual unpacking before sampling and repacking after sampling. The operation process is too cumbersome and the labor and material costs are greatly increased. Utility Model Content

[0004] In order to solve at least one of the problems mentioned in the above background technology, the utility model provides a photovoltaic module assembly production line, which can automatically perform random inspections on photovoltaic modules online, while ensuring that the photovoltaic modules are not taken off the line after the random inspection, thereby greatly reducing the labor intensity of personnel and efficiently completing the quality inspection process of the photovoltaic modules without going off the line.

[0005] The specific technical solutions provided by the embodiments of the present utility model are as follows:

[0006] In a first aspect, a photovoltaic module assembly production line is provided, comprising: a conveying unit, a first surface detection unit, a flip unit, a second surface detection unit, a binning channel, and a binning area;

[0007] The conveying unit is used to convey the photovoltaic modules in the forward and reverse directions, and a first visual inspection station corresponding to the first surface detection unit and a second visual inspection station corresponding to the second surface detection unit are arranged on one side of the conveying unit;

[0008] The first surface detection unit receives the photovoltaic assembly from the conveying unit and performs a visual inspection on at least one first surface of the photovoltaic assembly through the first visual inspection station;

[0009] The flip unit is located between the first surface detection unit and the second surface detection unit, and the flip unit is used to flip the photovoltaic assembly after the first surface detection unit detects;

[0010] The second surface detection unit is used to receive the flipped photovoltaic assembly and perform a visual inspection on at least one second surface of the flipped photovoltaic assembly through the second visual inspection station;

[0011] The input end of the grading channel is connected to the conveying unit, and the output end is connected to the grading area. The grading channel is located upstream of the first surface detection unit along the forward conveying direction of the conveying unit, so that photovoltaic components that do not need to be sampled enter the grading area through the grading channel before entering the first surface detection unit; photovoltaic components that need to be sampled do not need to enter the grading area through the grading channel and are forwardly conveyed by the conveying unit to the first surface detection unit for sampling; photovoltaic components that have completed sampling are reversely transported to the grading channel by the conveying unit, and enter the grading area through the grading channel.

[0012] In a specific embodiment, the first surface detection unit, the flip unit, and the second surface detection unit are arranged in sequence along the forward conveying direction of the conveying unit.

[0013] In a specific embodiment, the first surface detection unit or the second surface detection unit includes a first conveyor belt for receiving the photovoltaic components on the transmission unit, and a rotating table arranged at the bottom of the first conveyor belt, the rotating table is used to drive the photovoltaic components on the first conveyor belt to rotate, a lifting part is arranged at the lower part of the rotating table, and the lifting part is used to drive the rotating table to rise and fall, and a lifting part is arranged at the lower part of the rotating table, and the lifting part is used to drive the rotating table to rise and fall.

[0014] In a specific embodiment, the rotating table includes a support frame, a rotating pillar, and a support plate installed on the top of the rotating pillar. The support frame is supported and connected to the lower part of the first conveyor belt. The rotating pillar is located in the middle of the support frame. A number of support plates are symmetrically arranged about the center of the rotating pillar.

[0015] In a specific embodiment, the flip unit includes a frame and a flip frame hinged to the frame, both ends of the flip frame are connected with rotating shafts, the flip frame is hinged to the frame through the rotating shafts, a second conveyor belt is installed on the flip frame, and at least two of the second conveyor belts are installed relative to the lower part of the flip frame so that the photovoltaic module can pass between the two second conveyor belts.

[0016] In a specific embodiment, a PLC controller is further included, one end of which is communicatively connected to the production execution system, and the other end of which is communicatively connected to the first surface detection unit, the flip unit, and the second surface detection unit respectively.

[0017] In a specific embodiment, the conveying unit also includes a corner protector, which is installed on the conveying route of the conveying unit and is located upstream of the grading channel along the forward conveying direction of the conveying unit, so as to protect the corners of the photovoltaic component packages entering the grading channel.

[0018] In a specific embodiment, it also includes a barcode scanning gun installed on the conveying unit and located on a side of the conveying unit away from the first surface detection unit.

[0019] In a specific embodiment, at least two of the stepping channels are arranged along the conveying direction of the conveying unit, wherein each of the stepping channels is provided with a corner protector at an upstream position along the forward conveying direction of the conveying unit.

[0020] In a specific embodiment, the conveying direction of the conveying unit is parallel to the length direction of the stepping zone.

[0021] The embodiments of the present utility model have the following beneficial effects:

[0022] 1. In the embodiment of the utility model, a first surface detection unit, a flip unit and a second surface detection unit are sequentially arranged along the end of the direction in which the conveying unit conveys the photovoltaic component. First, the first conveyor belt of the first surface detection unit receives the photovoltaic component from the conveying unit, and then enters the rotating table. The rotating table rotates to detect each side of the photovoltaic component, and then the flip unit flips the photovoltaic component 180°, that is, flips the bottom surface of the photovoltaic component to the top, so as to achieve continued inspection of the flipped photovoltaic component through the second visual inspection station.

[0023] 2. Through the setting of this solution, the photovoltaic modules can be directly inspected at the end of the transmission unit without taking the photovoltaic modules offline for inspection, thereby improving the efficiency of photovoltaic module inspection.

[0024] 3. Through the setting of PLC control system, the automatic control of each working unit can further reduce the labor intensity of the staff and realize efficient sampling inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 The overall structure schematic diagram of the photovoltaic module assembly production line according to the present application is shown;

[0027] Figure 2 A schematic diagram showing a first surface detection unit according to the present application;

[0028] Figure 3 A top view of a first surface detection unit according to the present application is shown;

[0029] Figure 4 A left side view of a first surface detection unit according to the present application is shown;

[0030] Figure 5 A front view of a first surface detection unit according to the present application is shown;

[0031] Figure 6 A top view of the flip unit according to the present application is shown;

[0032] Figure 7 A perspective view showing a flip unit according to the present application;

[0033] Figure 8 A left side view of the flip unit according to the present application is shown;

[0034] Fig. 9 A front view of a flip unit according to the present application is shown;

[0035] Fig.10 A flow chart showing a photovoltaic module assembly production line according to the present application;

[0036] In the figure, 1, conveying unit; 2, first surface detection unit; 3, flip unit; 301, frame; 302, flip frame; 303, driving unit; 304, rotating shaft; 305, second conveyor belt; 306, anti-scratch plate; 4, second surface detection unit; 5, first conveyor belt; 6, rotating table; 7, lifting part; 8, supporting frame; 9, rotating pillar; 10, support plate; 11, branch belt; 12, corner protection machine; 13, grading channel; 14, grading area. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Embodiment 1

[0039] A photovoltaic module assembly production line, such as Figure 1As shown, it includes a conveying unit 1, a first surface detection unit 2, a flip unit 3, a second surface detection unit 4, a grading channel 13 and a grading area 14; the specific conveying unit 1 is used to convey photovoltaic modules in the forward and reverse directions of the preset assembly line direction, and the first surface detection unit 2, the flip unit 3 and the second surface detection unit 4 are arranged in sequence along the conveying direction of the conveying unit 1, and the first surface detection unit 2, the flip unit 3 and the second surface detection unit 4 are located at the end of the conveying unit 1, so as to facilitate the random inspection of photovoltaic modules without affecting other photovoltaic modules being conveyed in the conveying unit 1. The grading channel 13 is connected to one side of the conveying unit 1, and the extension direction of the grading channel 13 is perpendicular to the conveying direction of the conveying unit 1. The input end of the grading channel 13 is vertically connected to the conveying unit 1, and the output end is vertically connected to the grading area 14. The extension of the grading area 14 is parallel to the conveying direction of the conveying unit 1 and perpendicular to the extension direction of the grading channel 13. The position where the grading channel 13 is connected to the conveying unit 1 is located before the first surface inspection list 2, that is, the upstream position of the conveying direction of the conveying unit 1. If random inspection is required, the photovoltaic components conveyed on the conveying unit 1 can be controlled not to enter the grading area 14 through the grading channel 13, but to continue to enter the downstream random inspection area along the conveying direction of the conveying unit 1 for random inspection. The photovoltaic components that have completed the random inspection are reversely transported to the grading channel 13 through the conveying unit 1, and enter the grading area 14 through the grading channel 13, so as to realize that the photovoltaic components after random inspection are re-transmitted to the grading area 14 through the conveying unit 1, so as to assemble the photovoltaic components.

[0040] A first visual inspection station and a second visual inspection station are respectively set on the conveying unit 1 corresponding to the positions of the first surface detection unit 2 and the second surface detection unit 4, wherein the first visual inspection station corresponds to the position of the first surface detection unit 2, and visual inspection of the photovoltaic components in the first surface detection unit 2 is achieved through the first visual inspection station, and the second visual inspection station corresponds to the position of the second surface detection unit 4, so that visual inspection of the photovoltaic components in the second surface detection unit 4 can be achieved through the second visual inspection station.

[0041] like Figure 2 and Figure 3 As shown, the first surface detection unit 2 and the second surface detection unit 4 have the same structure, and both the first surface detection unit 2 and the second surface detection unit 4 include a first conveyor belt 5, a rotating table 6 and a lifting part 7; the first conveyor belt 5 corresponds to the position of the transmission unit 1, and is used to receive the photovoltaic components transported from the transmission unit 1, and the lifting part 7 is arranged at the lower part of the rotating table 6 to drive the rotating table 6 to rise and fall, so that when the lifting part 7 drives the rotating table 6 to rise to a height higher than the first conveyor belt 5, the photovoltaic component is supported by the rotating table 6 and driven to rotate, so that the other sides of the photovoltaic component correspond to the first visual inspection station or the second visual inspection station, thereby completing the visual inspection of different sides of the photovoltaic component.

[0042] In a specific embodiment, the angle at which the photovoltaic assembly is rotated by the rotating table 6 includes but is not limited to 45°, 60°, 65°, 70°, 75°, 85°, 90°, 120°, 140°, 150°, 160°, 170°, 180°, 240°, 270°, 300°, 330°, and 360°.

[0043] The flipping unit 3 is arranged between the first surface detection unit 2 and the second surface detection unit 4, so that the photovoltaic component can be flipped to a preset angle after detection by the first surface detection unit 2 by the flipping unit 3. Specifically, the photovoltaic component is flipped 180° by the flipping unit 3, so that it enters the second surface detection unit 4 after the flipping is completed, and the photovoltaic component in the second surface detection unit 4 is visually inspected through the second visual inspection station, and the photovoltaic component can be rotated again through the rotating table 6 in the second surface detection unit 4, so as to realize visual inspection of other sides of the photovoltaic component.

[0044] like Figure 4 and Figure 5 As shown, the rotating table 6 in the first surface detection unit 2 and the second surface detection unit 4 includes a support frame 8, a rotating pillar 9 and a support plate 10. Specifically, the support frame 8 is installed at the lower part of the first conveyor belt 5, and is used to support the first conveyor belt 5 to be flush with the transmission unit 1, so that the photovoltaic components on the transmission unit 1 enter the first conveyor belt 5. The rotating pillar 9 is arranged at the lower part of the rotating table 6, and the rotating pillar 9 is arranged in the middle of the support frame 8. A plurality of support plates 10 are installed on the top of the rotating pillar 9; specifically, four support plates 10 are symmetrically arranged about the center of the rotating pillar 9.

[0045] In order to ensure that the first conveyor belt 5 in the first surface detection unit 2 and the second surface detection unit 4 can smoothly convey the photovoltaic components, the first conveyor belt 5 is provided to include a plurality of branch belts 11 arranged in parallel, and at least two branch belts 11 are arranged in parallel along the conveying direction of the conveying unit 1; in this embodiment, the four branch belts 11 are arranged in parallel and at intervals, and each branch belt 11 moves synchronously, thereby realizing that a plurality of branch belts 11 convey the photovoltaic components at the same time. The rotating pillar 9 is arranged in the middle of the four branch belts 11, wherein two support plates 10 are arranged in the middle of the two middle branch belts 11, and the length direction of the support plates 10 is parallel to the direction of the branch belts 11. The first conveyor belt 5 conveys the photovoltaic components to the middle position of the branch belt 11, at which time the rotating pillar 9 rises and drives the rotating table 6 to support the lower part of the photovoltaic components, so as to realize the lifting and rotation of the photovoltaic components by the rotating table 6.

[0046] like Figure 6As shown, the flip unit 3 specifically includes a frame 301, a flip frame 302 and a driving unit 303. The frame 301 is a three-dimensional rectangular parallelepiped. The frame 301 is hollow. Bearing seats are installed on opposite sides of the frame 301. Rotating shafts 304 are installed at both ends of the flip frame 302. The rotating shafts 304 are rotatably connected to the bearing seats to realize that the flip frame 302 is hinged in the frame 301. The flip frame 302 is configured as a hollow three-dimensional quadrilateral, and a driving unit 303 is installed on the flip frame 302. The specific driving unit 303 includes but is not limited to a motor. A second conveyor belt 305 is installed in the middle of the flip frame 302, wherein two groups of second conveyor belts 305 are respectively arranged on the upper and lower sides of the middle of the flip frame 302. Specifically, two second conveyor belts 305 are arranged in parallel on each side of the flip frame 302, and a clamping member is arranged in the middle of the second conveyor belts 305 on the upper and lower sides. When the photovoltaic component moves between the second conveyor belts 305 on both sides, the photovoltaic component is clamped and positioned by the clamping member, and the flip frame 302 is further rotated around the rotating shaft 304 to flip the photovoltaic component 180°.

[0047] In a specific embodiment, the clamping member in this embodiment includes but is not limited to an elastic clamping member, and the elastic clamping member is connected to a sensor so that when the photovoltaic component moves between the second conveyor belts 305 on the upper and lower sides, the elastic clamping member extends from the upper and lower sides of the photovoltaic component to clamp and position the photovoltaic component.

[0048] like Figure 7 and Figure 8 As shown, in a specific embodiment, anti-scratch plates 306 are installed at the positions of the two second conveyor belts 305 on the same side of the flip frame 302 to prevent the photovoltaic components between the second conveyor belts 305 on both sides from being damaged during the flipping process.

[0049] like Fig.10 As shown, the photovoltaic module assembly production line also includes a sampling button and a PLC controller, one end of the PLC controller is connected to the production execution system, and the other end is connected to the first surface detection unit 2, the flip unit 3 and the second surface detection unit 4; specifically, the sampling button is connected to the production execution system, the first surface detection unit 2 is connected to the first signal receiver, the flip unit 3 is connected to the second signal receiver, and the second surface detection unit 4 is connected to the third signal receiver. The production execution system in this embodiment includes but is not limited to the MES system, thereby realizing that the MES system sends instructions and parameters to the PLC controller to realize the control of the photovoltaic module sampling process, and at the same time, the PLC controller feeds back the status information of the first signal receiver, the second signal receiver and the third signal receiver collected during the sampling process to the MES system, thereby realizing real-time monitoring and analysis of the data.

[0050] like Fig.10As shown, when it is necessary to conduct random inspection on the photovoltaic components on the conveying unit 1, the MES system controls the PLC controller to execute the following process: the random inspection button is activated, the conveying unit 1 transports the photovoltaic components to the first surface detection unit 2, and the first visual inspection station performs manual inspection, and does not go offline to the grading area 14 through the grading channel 13. After the inspection is qualified; the photovoltaic components flow into the flipping unit 3, and the photovoltaic components are flipped 180° to achieve the front and back switching. The photovoltaic components flow into the second surface detection unit 4. At this time, the staff of the second visual inspection station performs manual inspection. After the inspection is qualified, the conveying unit 1 is reversed to make the photovoltaic components reversely transported, through the flipping unit 3 and the first surface detection unit 2, the flipping unit 3 flips the photovoltaic components back to the initial state, and at the same time, the first surface detection unit 2 gives a grading feeding signal, so that the photovoltaic components after random inspection flow into the grading area 14 again, and the process ends.

[0051] In a specific embodiment, the conveying unit 1 in this embodiment also includes a corner protector 12, which is installed on the conveying route of the conveying unit 1 and is located upstream of the grading channel 13 along the forward conveying direction of the conveying unit 1, so as to protect the corners of the photovoltaic components entering the grading channel 13, and to protect the corners of the photovoltaic components conveyed by the conveying unit 1. For other photovoltaic components that are not subject to random inspection, that is, do not enter the first surface detection unit 2, corners are protected to prevent collisions between photovoltaic components. For photovoltaic components that need to be inspected, the corner protection operation is not performed, and they directly enter the inspection system at the end of the conveying unit 1.

[0052] In order to obtain information parameters of the photovoltaic modules on the entire conveying unit 1 , a barcode scanner is also installed on the conveying unit 1 . The barcode scanner is located on a side of the assembly line conveying platform away from the first surface detection unit 2 .

[0053] In a specific embodiment, two grading channels 13 are arranged along the conveying direction of the conveying unit 1, and the length directions of the two grading channels 13 are arranged in parallel, and one of the grading channels 13 is located near the first surface detection unit 2; two corner protection machines 12 are arranged along the conveying direction of the conveying unit 1, and the two corner protection machines 12 are respectively arranged in front of the two grading channels 13, and the input end of the other grading channel 13 is connected to the conveying direction of the conveying unit 1 and is located in front of one of the corner protection machines 12. The conveying direction of the conveying unit 1 is parallel to the length direction of the grading area 14, so as to realize that the photovoltaic components that do not enter the random inspection can directly enter the grading area 14 through the grading channel 13.

[0054] The first surface detection unit 2 in this embodiment also includes control buttons, which specifically include four groups of buttons: manual, complete, front inspection / back inspection and emergency stop. The above buttons can be used to control the action of the first surface detection unit 2 or the second surface detection unit 4 to complete the corresponding functions.

[0055] Specific implementation process: In the transmission unit 1 of this embodiment, a number of photovoltaic modules are arranged and transported. When it is necessary to randomly inspect the photovoltaic modules, the staff only needs to press the sampling button, so that the selected photovoltaic modules enter the first surface detection unit 2, the flip unit 3 and the second surface detection unit 4 at the end of the transmission unit 1. First, the first conveyor belt 5 of the first surface detection unit 2 receives the photovoltaic modules from the transmission unit 1, and then enters the rotating table 6. The photovoltaic modules are rotated by the rotating table 6 to inspect each side of the photovoltaic modules, and then the photovoltaic modules are flipped 180° by the flip unit 3, that is, the bottom surface of the photovoltaic modules is flipped to the top, so as to realize the continued inspection of the flipped photovoltaic modules through the second visual inspection station. For the photovoltaic modules after the inspection, if they are qualified photovoltaic modules, they are reversed and flow into the flip unit 3, so that the photovoltaic modules are flipped back to the initial state. At the same time, the first surface detection unit 2 gives a graded feeding signal, so that the photovoltaic modules after random inspection flow into the graded area 14 again; if they are unqualified photovoltaic modules, they are directly processed offline.

[0056] The solution in this embodiment can realize the inspection of photovoltaic modules directly at the end of the conveying unit 1, without taking the photovoltaic modules offline for inspection, thereby improving the efficiency of photovoltaic module inspection, and through the setting of the PLC control system, the automatic control of each working unit can be further reduced, thereby achieving efficient random inspection.

[0057] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0058] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A photovoltaic module assembly production line, characterized in that: include: A conveying unit (1), a first surface detection unit (2), a flipping unit (3), a second surface detection unit (4), a grading channel (13) and a grading area (14), The conveying unit (1) is used to convey the photovoltaic module in a forward and reverse direction, and a first visual inspection station corresponding to the first surface detection unit (2) and a second visual inspection station corresponding to the second surface detection unit (4) are arranged on one side of the conveying unit (1); The first surface detection unit (2) receives the photovoltaic module from the conveying unit (1), and performs a visual inspection on at least one first surface of the photovoltaic module through the first visual inspection station; The flipping unit (3) is located between the first surface detection unit (2) and the second surface detection unit (4), and the flipping unit (3) is used to flip the photovoltaic module after being detected by the first surface detection unit (2); The second surface detection unit (4) is used to receive the flipped photovoltaic module and to perform a visual inspection on at least one second surface of the flipped photovoltaic module through the second visual inspection station; The input end of the grading channel (13) is connected to the conveying unit (1), and the output end is connected to the grading area (14). The grading channel (13) is located upstream of the first surface detection unit (2) along the forward conveying direction of the conveying unit (1), so that photovoltaic components that do not need to be sampled enter the grading area (14) through the grading channel (13) before entering the first surface detection unit (2); photovoltaic components that need to be sampled do not need to enter the grading area (14) through the grading channel (13), but are forwardly conveyed by the conveying unit (1) to the first surface detection unit (2) for sample inspection; photovoltaic components that have completed the sample inspection are reversely conveyed to the grading channel (13) through the conveying unit (1), and enter the grading area (14) through the grading channel (13).

2. The photovoltaic module assembly production line according to claim 1, characterized in that: The first surface detection unit (2), the flip unit (3) and the second surface detection unit (4) are arranged in sequence along the forward conveying direction of the conveying unit (1).

3. The photovoltaic module assembly production line according to claim 1 or 2, characterized in that: The first surface detection unit (2) or the second surface detection unit (4) comprises a first conveyor belt (5) for receiving the photovoltaic components on the transmission unit (1), and a rotating table (6) arranged at the bottom of the first conveyor belt (5), the rotating table (6) being used to drive the photovoltaic components on the first conveyor belt (5) to rotate, and a lifting part (7) is arranged at the bottom of the rotating table (6), and the lifting part (7) is used to drive the rotating table (6) to rise and fall.

4. The photovoltaic module assembly production line according to claim 3, characterized in that: The rotating platform (6) comprises a support frame (8), a rotating pillar (9), and a support plate (10) installed on the top of the rotating pillar (9); the support frame (8) is supported and connected to the lower part of the first conveyor belt (5); the rotating pillar (9) is located in the middle of the support frame (8); and a plurality of support plates (10) are symmetrically arranged about the center of the rotating pillar (9).

5. The photovoltaic module assembly production line according to claim 1 or 2, characterized in that: The flip unit (3) comprises a frame (301) and a flip frame (302) hinged in the frame, two ends of the flip frame (302) are connected with a rotating shaft (304), the flip frame (302) is hinged to the frame (301) via the rotating shaft (304), a second conveyor belt (305) is installed on the flip frame (302), and at least two of the second conveyor belts (305) are relatively installed at the lower part of the flip frame (302) so that the photovoltaic module passes between the two second conveyor belts (305).

6. The photovoltaic module assembly production line according to claim 1 or 2, characterized in that: It also comprises a PLC controller, one end of which is communicatively connected to the production execution system, and the other end of which is communicatively connected to the first surface detection unit (2), the flip unit (3) and the second surface detection unit (4).

7. The photovoltaic module assembly production line according to claim 1 or 2, characterized in that: The conveying unit (1) further comprises a corner protecting machine (12), which is installed on the conveying route of the conveying unit (1) and is located upstream of the grading channel (13) along the forward conveying direction of the conveying unit (1), so as to protect the corners of the photovoltaic module packages entering the grading channel (13).

8. The photovoltaic module assembly production line according to claim 1, characterized in that: It also includes a barcode scanning gun installed on the conveying unit (1) and located on a side of the conveying unit (1) away from the first surface detection unit (2).

9. The photovoltaic module assembly production line according to claim 1 or 2, characterized in that: At least two of the stepping channels (13) are arranged along the conveying direction of the conveying unit (1), wherein each of the stepping channels (13) is provided with a corner protector (12) at an upstream position along the forward conveying direction of the conveying unit (1).

10. The photovoltaic module assembly production line according to claim 9, characterized in that: The conveying direction of the conveying unit (1) is parallel to the length direction of the stepping area (14).

Images