A photovoltaic module EVA back panel hole opening device

Abstract

The present invention relates to the field of photovoltaic modules, and specifically to a photovoltaic module EVA backplane hole-punching device, which includes a base, on which a plurality of parallel feed conveyor belts and a plurality of parallel discharge conveyor belts are arranged; and further includes: a transfer mechanism, which is arranged on the base and is used to transfer the backplane from the feed conveyor belt to the discharge conveyor belt, and when the transfer mechanism places the backplane on the discharge conveyor belt, the horizontal speed of the backplane is equal to the conveying speed of the discharge conveyor belt; and a hole-punching mechanism, which is arranged on the transfer mechanism and moves synchronously with the transfer mechanism, and the hole-punching mechanism is used to punch holes in the backplane during the transfer process. In the present invention, the backplane moves throughout the entire process, and there is no need to stop punching holes, so the work efficiency is higher; the control system is simplified, and multiple structures do not need to work together, which helps to reduce the failure rate of the production line; the backplane after the hole is punched is placed on the discharge conveyor belt at the same speed, which avoids relative sliding between the discharge conveyor belt and the backplane, thereby avoiding scratching the backplane.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic modules, and in particular to an EVA backboard hole-punching device for a photovoltaic module. Background Art

[0002] In photovoltaic modules, EVA film is usually used in the lamination process to bond the cells to the backplane, glass and other materials to form a strong and stable whole. The laminated EVA backplane can provide a moisture-proof, dust-proof, UV-resistant and mechanically impact-resistant outer layer for the cells. During production, the backplane needs to be drilled according to the size and position requirements of the junction box to ensure that the junction box can be correctly installed on the photovoltaic module. The conventional method is to transport the backplane via a conveyor belt, and after it is in place, the backplane is lifted up by a lifting mechanism for drilling. After the drilling is completed, the backplane falls to another section of the conveyor belt for continued transportation. This method is easy to cause the conveyor belt to scratch the surface of the backplane due to speed mismatch when the backplane falls to the other end of the moving conveyor belt, affecting the production quality, and the efficiency of opening holes is low.

[0003] The Chinese patent with the announcement number CN116851807A discloses a hole-drilling device for the EVA backboard of photovoltaic modules. It adopts automatic operation to ensure that when loading one backboard, it can be lifted by another backboard, without the need for other external force equipment, which can reduce the use of parts. At the same time, it can also realize the conveyor belt for loading and unloading, which is convenient for operation. The lifting component can lift the backboard being drilled, which can prevent the drill bit from drilling into the conveyor belt. It can effectively improve the overall work efficiency and reduce the labor intensity of the staff.

[0004] However, the above-mentioned disclosed solutions have the following disadvantages: the back plate needs to be stopped before the holes can be drilled, the production efficiency is low, and the back plate is easily scratched when it falls on the started conveyor line. Summary of the invention

[0005] The purpose of the present invention is to propose a photovoltaic module EVA backboard hole drilling device to address the problems in the background technology that the backboard needs to stop conveying for drilling, the production efficiency is low, and the backboard is easily scratched when it falls on the started conveyor line.

[0006] The technical solution of the present invention is: a photovoltaic module EVA backboard hole opening device, comprising a base, on which a plurality of parallel feeding conveyor belts and a plurality of parallel discharging conveyor belts are arranged, and the plurality of feeding conveyor belts jointly convey the backboard; and further comprising:

[0007] The transfer mechanism is arranged on the base and is used to transfer the back plate from the feed conveyor belt to the discharge conveyor belt. The discharge conveyor belt is always in operation. When the transfer mechanism places the back plate on the discharge conveyor belt, the horizontal speed of the back plate is equal to the conveying speed of the discharge conveyor belt.

[0008] And a hole-opening mechanism is arranged on the transfer mechanism and moves synchronously with the transfer mechanism. The hole-opening mechanism and the back plate during the transfer process are relatively stationary. The hole-opening mechanism is used to open holes in the back plate during the transfer process.

[0009] Preferably, during the process of the transfer mechanism transferring the back plate from the feed conveyor belt to the discharge conveyor belt, the hole opening mechanism drills holes in the back plate. After the hole drilling is completed, the hole opening mechanism resets. After the back plate is transferred to the discharge conveyor belt, the transfer mechanism resets, that is, returns to the initial position.

[0010] Preferably, the transfer mechanism includes a support frame vertically arranged on the base, a rotating column horizontally and rotatably arranged on the support frame, a rotating frame arranged at both ends of the rotating column, a square plate rotatably connected to the two rotating frames, a box body connected to the two square plates, and a plurality of back plate lifting frames arranged on the box body; the back plate lifting frame is located between two adjacent feed conveyor belts, the back plate lifting frame includes a vertical section and a horizontal section, the vertical section is connected to the box body, the horizontal section is used to support the back plate, and the horizontal section is provided with a slag drop hole located below the opening position of the back plate; a power component for driving the rotating column to rotate is provided on the support frame, and a horizontal limiting component is provided on the base, which is used to keep the back plate lifting frame horizontal at all times during rotation.

[0011] Preferably, the power assembly includes a mounting seat arranged on the support frame, a motor arranged on the mounting seat, a gear a arranged on the output shaft of the motor, and a gear b arranged on the rotating column, and the gear a and the gear b are meshed.

[0012] Preferably, a limit baffle is provided on the horizontal section of the backplane lifting frame, and the backplane is against the limit baffle, and the limit baffle is used to locate the lateral position of the backplane on the backplane lifting frame.

[0013] Preferably, a through hole is provided on the square plate and is connected to the inner cavity of the box body. A hose is connected to the through hole on the square plate. The hose is connected to an external air supply device. The back plate lifting frame is a cavity structure and is connected to the inner cavity of the box body. An air flow channel is formed in the square plate, the box body and the back plate lifting frame. A slag discharge hole is formed at the end of the horizontal section of the back plate lifting frame. After the hole is opened, the material is discharged through the slag discharge hole and then discharged from the slag discharge hole under the action of the air flow.

[0014] Preferably, the horizontal limiting assembly includes a slide plate slidably arranged on the base, and a vertical plate arranged on the slide plate, a strip groove is arranged on the vertical plate, and the square plate fits through the strip groove.

[0015] Preferably, the hole opening mechanism includes a hole opening support frame arranged on the square plate, a hole opening device arranged on the hole opening support frame, and the hole opening device is located on the back plate.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The back panel moves throughout the entire process, and there is no need to stop to drill holes, which makes the work more efficient;

[0018] There is no need to use an additional control system to control the start and stop of the feed conveyor belt and the discharge conveyor belt. The feed conveyor belt and the discharge conveyor belt can work all the time. Only the feed spacing needs to be controlled. This simplifies the control system and does not require multiple structures to work together, which helps reduce the failure rate of the production line.

[0019] The back plate after the hole is opened is placed on the discharge conveyor belt at the same speed, which avoids relative sliding between the discharge conveyor belt and the back plate, thereby avoiding scratches on the back plate and improving production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 and Figure 2 They are all stereograms of the present invention;

[0021] Figure 3 for Figure 1 A top view of

[0022] Figure 4 for Figure 1 Schematic diagram of the structure after removing the feed conveyor belt and the discharge conveyor belt;

[0023] Figure 5 Schematic diagram of the structure of the back panel being transferred to the discharge conveyor belt.

[0024] Figure numerals: 1. base; 2. support frame; 3. rotating column; 4. mounting seat; 5. motor; 6. gear a; 7. gear b; 8. rotating frame; 9. box body; 10. square plate; 11. back plate lifting frame; 12. limit baffle; 13. back plate; 14. opening support frame; 15. opening device; 16. telescopic device; 17. U-shaped plate; 18. roller; 19. feed conveyor belt; 20. feed support frame; 21. hose; 22. slag discharge hole; 23. slag receiving box; 24. slag discharge limiting plate; 25. discharge conveyor belt; 26. discharge support frame; 27. slide plate; 28. vertical plate; 29. ​​strip groove; 30. slide groove. DETAILED DESCRIPTION

[0025] Embodiment 1, as Figure 1-Figure 5 As shown, a photovoltaic module EVA backboard hole opening device proposed by the present invention includes a base 1, on which a plurality of parallel feeding conveyor belts 19 and a plurality of parallel discharging conveyor belts 25 are arranged, and the plurality of feeding conveyor belts 19 jointly convey the backboard 13. Specifically, a plurality of feeding support frames 20 are vertically arranged on the base 1, and the feeding support frames 20 are used to support the feeding conveyor belts 19. A plurality of discharging support frames 26 are arranged on the base 1, and the discharging support frames 26 are used to support the discharging conveyor belts 25; and further includes:

[0026] The transfer mechanism is arranged on the base 1, and is used to transfer the back plate 13 from the feed conveyor belt 19 to the discharge conveyor belt 25. The discharge conveyor belt 25 is always in operation. When the transfer mechanism places the back plate 13 on the discharge conveyor belt 25, the horizontal speed of the back plate 13 is equal to the conveying speed of the discharge conveyor belt 25, or the two are approximately equal, so as to minimize the relative movement between the discharge conveyor belt 25 and the back plate 13, thereby preventing the discharge conveyor belt 25 from scratching the back plate 13, especially after the back plate 13 is opened, there may be some burrs on the edge of the hole. If the burrs fall on the discharge conveyor belt 25, the discharge conveyor belt 25 and the back plate 13 slide relative to each other, which will cause the back plate 13 to be scratched;

[0027] And a hole-opening mechanism is arranged on the transfer mechanism and moves synchronously with the transfer mechanism. The hole-opening mechanism and the back plate 13 during the transfer process are relatively stationary. The hole-opening mechanism is used to open holes in the back plate 13 during the transfer process.

[0028] During the process of the transfer mechanism transferring the back plate 13 from the feed conveyor belt 19 to the discharge conveyor belt 25, the hole opening mechanism drills holes in the back plate 13. After the hole opening is completed, the hole opening mechanism resets. After the back plate 13 is transferred to the discharge conveyor belt 25, the transfer mechanism resets, that is, returns to the initial position.

[0029] Embodiment 2, as Figure 2-Figure 5 As shown, a photovoltaic module EVA back panel hole opening device proposed by the present invention, compared with the first embodiment, this embodiment introduces the structure of the transfer mechanism in detail.

[0030] The transfer mechanism includes a support frame 2 vertically arranged on a base 1, a rotating column 3 horizontally and rotatably arranged on the support frame 2, a rotating frame 8 arranged at both ends of the rotating column 3, a square plate 10 rotatably connected to the two rotating frames 8, a box body 9 connected to the two square plates 10, and a plurality of back plate lifting frames 11 arranged on the box body 9; the back plate lifting frame 11 is located between two adjacent feed conveyor belts 19, the back plate lifting frame 11 includes a vertical section and a horizontal section, the vertical section is connected to the box body 9, the horizontal section is used to hold up the back plate 13, and the horizontal section is provided with a slag drop hole located below the opening position of the back plate 13; a power component for driving the rotating column 3 to rotate is provided on the support frame 2, and a horizontal limiting component is provided on the base 1 to keep the back plate lifting frame 11 horizontal during rotation; in an optional embodiment, a circular section is provided on the square plate 10, and the end of the rotating frame 8 is sleeved on the circular section. During production and processing, the square plate 10 is connected by the circular section and two square sections on both sides.

[0031] Furthermore, the power assembly includes a mounting base 4 arranged on the support frame 2, a motor 5 arranged on the mounting base 4, a gear a6 arranged on the output shaft of the motor 5, and a gear b7 arranged on the rotating column 3, and the gear a6 and the gear b7 are meshed; the entire power assembly is located above the rotating column 3.

[0032] Furthermore, a limit baffle 12 is provided on the horizontal section of the backplane lifting frame 11 , and the backplane 13 is against the limit baffle 12 . The limit baffle 12 is used to locate the lateral position of the backplane 13 on the backplane lifting frame 11 .

[0033] Furthermore, the horizontal limiting component includes a slide plate 27 slidably set on the base 1, and a vertical plate 28 set on the slide plate 27, a strip groove 29 is set on the vertical plate 28, and the square plate 10 cooperates to pass through the strip groove 29; in an optional embodiment, a slide groove 30 is set on the base 1, and a slider is set at the bottom of the slide plate 27, and the slider cooperates to slide in the slide groove 30; through the restriction of the square plate 10 by the strip groove 29, the square plate 10 cannot rotate when moving left and right, thereby ensuring that the back plate lifting frame 11 horizontally transfers the back plate 13.

[0034] Embodiment three, as Figure 2 and Figure 4 As shown, a photovoltaic module EVA back panel hole opening device proposed in the present invention, compared with the first or second embodiment, this embodiment introduces the blanking structure of the hole.

[0035] A through hole is arranged on the square plate 10 and is connected with the inner cavity of the box body 9. The through hole on the square plate 10 is connected with a hose 21. The hose 21 is connected with an external air supply device. The back plate lifting frame 11 is a cavity structure and is connected with the inner cavity of the box body 9. An air flow channel is formed in the square plate 10, the box body 9 and the back plate lifting frame 11. A slag discharge hole 22 is formed at the end of the horizontal section of the back plate lifting frame 11. After the hole is opened, the material is discharged through the slag discharge hole and then discharged from the slag discharge hole 22 under the action of the air flow. In order to collect the material dropped from the opening, a slag receiving box 23 is arranged on the base 1. The slag receiving box 23 is located below the slag discharge hole 22. A plurality of slag discharge limiting plates 24 are arranged on the slag receiving box 23. The slag discharge limiting plates 24 are grouped in two and are located between two adjacent feed conveyor belts 19. A group of slag discharge limiting plates 24 forms a slag discharge channel to prevent the material dropped from the opening from being blown to the return section below the feed conveyor belt 19.

[0036] Embodiment 4, as Figure 1-Figure 2 As shown, a photovoltaic module EVA back panel hole opening device proposed by the present invention, compared with the first embodiment, the second embodiment or the third embodiment, this embodiment introduces the structure of the hole opening mechanism in detail.

[0037] The hole opening mechanism includes a hole opening support frame 14 arranged on the square plate 10, and a hole opening device 15 arranged on the hole opening support frame 14, and the hole opening device 15 is located on the back plate 13; in order to make the hole opening position of the back plate 13 more accurate, a telescopic device 16 is arranged on the hole opening support frame 14, and a U-shaped plate 17 is arranged at the telescopic end of the telescopic device 16, and a roller 18 is vertically and rotatably arranged on the U-shaped plate 17. The telescopic device 16 is extended, and the back plate 13 is limited from both sides by the roller 18.

[0038] In summary, when the present invention is in use, in the initial state, the backboard lifting frame 11 is located below the feed conveyor belt 19. After the feed conveyor belt 19 conveys the backboard 13 to the position, the rotating column 3 rotates counterclockwise to lift the backboard 13, and the backboard 13 is separated from the feed conveyor belt 19. During the rotation of the rotating column 3, the telescopic device 16 extends to adjust the position of the backboard 13, and then the hole-opening device 15 makes a hole in the backboard 13, and the material falling from the hole is blown into the slag receiving box 23. Subsequently, the backboard 13 falls onto the discharge conveyor belt 25 at a certain speed, and the horizontal speed of the backboard 13 is as equal as possible to the speed of the discharge conveyor belt 25, or as close as possible to the conveying speed of the discharge conveyor belt 25, so that the backboard 13 can be smoothly conveyed to the discharge conveyor belt 25, and the friction of relative movement will not cause scratches on the backboard 13. After the backboard 13 is sent away by the discharge conveyor belt 25, the rotating column 3 rotates clockwise to reset.

[0039] In the present invention, the back plate 13 moves throughout the entire process without stopping to drill holes, and the work efficiency is higher; there is no need to additionally control the start and stop of the feed conveyor belt 19 and the discharge conveyor belt 25 through a control system, and the feed conveyor belt 19 and the discharge conveyor belt 25 can work all the time, and only the feed spacing needs to be controlled, which simplifies the control system and does not require multiple structures to work in coordination with each other, which helps to reduce the failure rate of the production line; the back plate 13 after drilling is placed on the discharge conveyor belt 25 at the same speed, avoiding relative sliding between the discharge conveyor belt 25 and the back plate 13, thereby avoiding scratches on the back plate 13 and improving production quality.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A photovoltaic module EVA back panel hole drilling device, comprising a base (1), on which a plurality of parallel feeding conveyor belts (19) and a plurality of parallel discharging conveyor belts (25) are arranged, wherein the plurality of feeding conveyor belts (19) jointly convey the back panel (13); characterized in that: Also includes: A transfer mechanism is disposed on the base (1) and is used to transfer the back plate (13) from the feed conveyor belt (19) to the discharge conveyor belt (25). The discharge conveyor belt (25) is always in operation. When the transfer mechanism places the back plate (13) on the discharge conveyor belt (25), the horizontal speed of the back plate (13) is equal to the conveying speed of the discharge conveyor belt (25). and a hole-opening mechanism, which is arranged on the transfer mechanism and moves synchronously with the transfer mechanism, the hole-opening mechanism and the back plate (13) during the transfer process are relatively stationary, and the hole-opening mechanism is used to open a hole in the back plate (13) during the transfer process; The transfer mechanism comprises a support frame (2) vertically arranged on a base (1), a rotating column (3) horizontally and rotatably arranged on the support frame (2), a rotating frame (8) arranged at both ends of the rotating column (3), a square plate (10) rotatably connected to the two rotating frames (8), a box body (9) connected to the two square plates (10), and a plurality of back plate lifting frames (11) arranged on the box body (9); the back plate lifting frame (11) is located between two adjacent feeding conveyor belts (19), the back plate lifting frame (11) comprises a vertical section and a horizontal section, the vertical section is connected to the box body (9), the horizontal section is used to hold up the back plate (13), and the horizontal section is provided with a slag drop hole located below the opening position of the back plate (13); a power component for driving the rotating column (3) to rotate is arranged on the support frame (2), and a horizontal limiting component is arranged on the base (1) for keeping the back plate lifting frame (11) horizontal during rotation; The horizontal limiting assembly comprises a slide plate (27) slidably arranged on the base (1), and a vertical plate (28) arranged on the slide plate (27), a strip groove (29) being arranged on the vertical plate (28), and the square plate (10) fittingly passes through the strip groove (29).

2. The photovoltaic module EVA backboard hole opening device according to claim 1, characterized in that: During the process of the transfer mechanism transferring the back plate (13) from the feed conveyor belt (19) to the discharge conveyor belt (25), the hole-opening mechanism performs hole-opening on the back plate (13). After the hole-opening is completed, the hole-opening mechanism is reset. After the back plate (13) is transferred to the discharge conveyor belt (25), the transfer mechanism is reset, i.e., returns to the initial position.

3. The photovoltaic module EVA backboard hole opening device according to claim 1, characterized in that: The power assembly comprises a mounting seat (4) arranged on the support frame (2), a motor (5) arranged on the mounting seat (4), a gear a (6) arranged on the output shaft of the motor (5), and a gear b (7) arranged on the rotating column (3), wherein the gear a (6) and the gear b (7) are meshed.

4. The photovoltaic module EVA backboard hole opening device according to claim 1, characterized in that: A limit baffle (12) is arranged on the horizontal section of the back plate lifting frame (11), and the back plate (13) abuts against the limit baffle (12). The limit baffle (12) is used to locate the lateral position of the back plate (13) on the back plate lifting frame (11).

5. The photovoltaic module EVA backboard hole opening device according to claim 1, characterized in that: A through hole is provided on the square plate (10) and is communicated with the inner cavity of the box body (9). The through hole on the square plate (10) is connected to a hose (21). The hose (21) is externally connected to an air supply device. The back plate lifting frame (11) is a hollow structure and is communicated with the inner cavity of the box body (9). An air flow channel is formed in the square plate (10), the box body (9) and the back plate lifting frame (11). A slag discharge hole (22) is formed at the end of the horizontal section of the back plate lifting frame (11). After the hole is opened, the discharge material is discharged through the slag discharge hole and then discharged from the slag discharge hole (22) under the action of the air flow.

6. The photovoltaic module EVA backboard hole opening device according to claim 1, characterized in that: The hole-opening mechanism comprises a hole-opening support frame (14) arranged on the square plate (10), a hole-opening device (15) arranged on the hole-opening support frame (14), and the hole-opening device (15) is located on the back plate (13).

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