Continuous carrying device for photovoltaic module lamination production

Abstract

The invention provides a continuous carrying device for photovoltaic module lamination production, which is applied to the field of photovoltaic monocrystalline silicon stacking and carrying, and comprises a gap integration mechanism which is arranged at the top of the output end of a lower conveying belt and comprises a turnover door frame and a fixed door frame which are rotationally connected, and an elastic sealing cover and an elastic separation layer with exhaust holes are arranged between the turnover door frame and the fixed door frame; the guide mechanism is connected to the lower conveying belt support in a sliding mode and comprises an upper overturning adsorption part and a lower overturning adsorption part which can be overturned synchronously, and the upper overturning adsorption part and the lower overturning adsorption part are provided with an upper negative pressure opening and a lower negative pressure opening respectively and used for guiding the photovoltaic module to move forwards; the air pressure mechanism provides positive air pressure for the exhaust hole and provides negative air pressure for the upper negative pressure opening and the lower negative pressure opening in a time-sharing mode. Through the airflow guide design of the gap integration mechanism and the time-sharing adsorption design of the guide mechanism, the high-speed lamination carrying requirement of the photovoltaic module is met, and the non-damage, high-precision and continuous carrying target is achieved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic monocrystalline silicon stacking and handling, and in particular to a continuous handling device for photovoltaic module lamination production. Background Technology

[0002] In the photovoltaic module manufacturing process, the lamination process is a crucial step that determines module performance. It requires the precise alignment of multiple layers, including the photovoltaic backsheet layer, monocrystalline silicon layer, and photovoltaic glass layer, before high-temperature and high-pressure lamination. Currently, the industry generally adopts a step-by-step stacking-intermittent handling mode to complete the material transfer before lamination. Specifically, the photovoltaic backsheet layer is transported sequentially via a single conveyor belt. After it comes to a complete stop, the monocrystalline silicon layer is placed manually or by a robotic arm. After alignment and calibration, the photovoltaic glass layer is then stacked. Once the entire stack is completed, it is transferred to the laminator by a handling device.

[0003] This handling method has low efficiency for continuous operation. Due to the single-layer transmission structure, it is necessary to wait for the lower layer of materials to be fully positioned before the upper layer can be stacked. The cumulative time for the transmission, alignment, and waiting of each layer of materials results in a long handling cycle for a single set of components and low handling efficiency.

[0004] Therefore, a continuous handling device for photovoltaic module lamination production is proposed. Summary of the Invention

[0005] The purpose of this application is to solve the technical problems of low efficiency and poor continuous operation capability of existing photovoltaic module handling and stacking methods. Compared with the prior art, it provides a continuous handling device for photovoltaic module lamination production, including a handling mechanism for layering photovoltaic modules. The photovoltaic modules are arranged from bottom to top as a photovoltaic backsheet layer, a monocrystalline silicon layer, and a photovoltaic glass layer. The handling mechanism consists of a lower conveyor belt, a middle conveyor belt, and an upper conveyor belt arranged equidistantly from bottom to top. The output ends of the middle and upper conveyor belts are respectively provided with an angle-adjustable secondary conveyor belt one and a secondary conveyor belt two. It also includes... The gap integration mechanism is located at the top of the output end of the lower conveyor belt, and includes a rotating gantry and a fixed gantry connected by a rotatable connection. An elastic cover and an elastic partition layer with vent holes are provided between the two. The guiding mechanism is slidably connected to the lower conveyor belt support and includes an upper flip adsorption component and a lower flip adsorption component that can be flipped synchronously. The two components are respectively provided with an upper negative pressure port and a lower negative pressure port to guide the photovoltaic module to move forward. The pneumatic mechanism provides positive air pressure to the exhaust port and provides negative air pressure to the upper and lower negative pressure ports at different times.

[0006] Furthermore, a mounting base plate is fixed on the lower conveyor belt support; The tilting gantry is rotatably connected between the mounting base plates, and a tension spring is provided between the two plates to drive the tilting gantry closer to the fixed gantry.

[0007] Furthermore, the elastic partition layer is provided with an airbag, and the exhaust holes are evenly distributed on the upper and lower sides of the airbag; The flip-up gantry is equipped with a fixed plate, the fixed gantry is equipped with a rotating plate, and the elastic partition layer is in the shape of an acute triangle, with its short end face fixed to the fixed plate and one side of its lower end face fixed to the rotating plate and extending with a buffer skirt.

[0008] Furthermore, an auxiliary roller is rotatably connected to the top side of the fixed plate.

[0009] Furthermore, the guiding mechanism also includes two sets of sliding seats symmetrically slidably connected to both sides of the lower conveyor belt support, and an upper rotating shaft and an upper flipping shaft are fixed inside the upper flipping adsorption component, with a pressure plate roller rotatably connected to the upper rotating shaft; The lower flipping adsorption component has a lower rotating shaft and a lower flipping shaft fixed inside, and a driven roller is rotatably connected to the lower rotating shaft; The upper and lower rotating shafts are rotatably connected between two sets of sliding seats. The sliding seats are also provided with two sets of arc-shaped grooves distributed vertically. The ends of the upper and lower rotating shafts extend into the corresponding arc-shaped grooves and are slidably connected. A return spring is also fixed between the upper rotating shaft and the arc-shaped groove.

[0010] Furthermore, the ends of the upper and lower flip shafts extending into the arc-shaped grooves are jointly sleeved with a connecting power arm, and the middle of the connecting power arm is rotatably connected to an execution roller. One side of the lower conveyor belt support is provided with an L-shaped guide plate that cooperates with the actuator roller.

[0011] Furthermore, the reset spring drives the upper negative pressure port to fit against the upper plane of the lower conveyor belt; When compressed to its maximum stroke, the upper negative pressure port moves away from the lower negative pressure port and the lower negative pressure port fits against the lower plane of the lower conveyor belt.

[0012] Furthermore, the negative pressure output end of the pneumatic mechanism is connected to the output ends of the upper negative pressure port and the lower negative pressure port through pneumatic pipes, respectively. The pneumatic pipes of the upper negative pressure port and the lower negative pressure port are equipped with electromagnetic control valves, and the support of the lower conveyor belt is also equipped with a displacement sensor for calculating the overall displacement distance of the guide mechanism.

[0013] Furthermore, the sliding seat is provided with a slider, the support of the lower conveyor belt is provided with a corresponding groove, and buffer springs that cooperate with the slider are provided on both sides of the groove.

[0014] Furthermore, the distance between the pressure roller and the lower conveyor belt is not greater than the total thickness of the photovoltaic module, and the end of the upper flipping adsorption component is provided with an arc-shaped buffer pad.

[0015] Compared to existing technologies, the advantages of this application are: This invention adapts to the high-speed lamination and handling requirements of photovoltaic modules by using the airflow guidance design of the gap integration mechanism and the time-division adsorption design of the guiding mechanism, achieving the goal of non-destructive, high-precision, and continuous handling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a partial cross-sectional structural diagram of this application; Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a schematic diagram of the gap integration mechanism proposed in this application; Figure 5 This is a cross-sectional structural schematic diagram of the gap integration mechanism proposed in this application; Figure 6 This is a schematic diagram of the guiding mechanism proposed in this application; Figure 7 This is a cross-sectional structural diagram of the guiding mechanism proposed in this application; Figure 8 This is a schematic diagram showing the state of the photovoltaic module when it initially enters the gap integration mechanism as proposed in this application; Figure 9 This is a schematic diagram showing the state of the photovoltaic module when it is fully integrated into the gap integration mechanism as proposed in this application. Figure 10 for Figure 9 Enlarged structural diagram of section B in the middle; Figure 11 This is a schematic diagram showing the state in which the guiding mechanism proposed in this application drives the photovoltaic module forward; Figure 12 This is a schematic diagram of the state of the guiding mechanism proposed in this application when it flips and resets after reaching the L-shaped guide plate.

[0017] Explanation of the labels in the diagram: 101. Photovoltaic backsheet layer; 102. Monocrystalline silicon layer; 103. Photovoltaic glass layer; 3. Conveying mechanism; 31. Lower conveyor belt; 32. Middle conveyor belt; 321. Secondary conveyor belt one; 33. Upper conveyor belt; 331. Secondary conveyor belt two; 4. Gap integration mechanism; 41. Elastic partition layer; 411. Fixing plate; 412. Auxiliary roller; 413. Airbag; 414. Exhaust hole; 415. Rotating plate; 416. Buffer skirt; 42. Elastic cover; 43. Tilting gantry; 44. Fixing gantry; 45. Mounting base plate; 46. Tension spring; 5. Guiding mechanism; 51. Pressure plate roller; 511. Upper rotating shaft; 52. Upper flipping adsorption component; 521. Upper negative pressure port; 522. Arc-shaped buffer pad; 523. Upper flipping shaft; 53. Lower flipping adsorption component; 531. Lower flipping shaft; 532. Lower negative pressure port; 54. Driven roller; 541. Lower rotating shaft; 55. Sliding seat; 551. Arc-shaped groove; 552. Return spring; 56. Linkage arm; 561. Actuating roller; 57. Slider; 6. L-shaped guide plate; 7. Displacement sensor; 8. Buffer spring. Detailed Implementation

[0018] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0019] Example: This invention provides a continuous conveying device for photovoltaic module lamination production. Please refer to [link / reference]. Figure 1 - Figure 12 The photovoltaic module includes a handling mechanism 3 for layered handling of photovoltaic modules. The photovoltaic module consists of a photovoltaic backsheet layer 101, a monocrystalline silicon layer 102, and a photovoltaic glass layer 103 from bottom to top. It should be noted that in this embodiment, the monocrystalline silicon layer 102 contains multiple monocrystalline silicon cells arranged at equal intervals. The monocrystalline silicon cells are pre-welded with solder strips, and the upper and lower sides of the monocrystalline silicon layer 102 are pre-encapsulated with EVA film layers.

[0020] Please refer to this first. Figure 1 The conveying mechanism 3 consists of a lower conveyor belt 31, a middle conveyor belt 32, and an upper conveyor belt 33 arranged equidistantly from bottom to top. The output ends of the middle conveyor belt 32 and the upper conveyor belt 33 are respectively equipped with an adjustable secondary conveyor belt 321 and a secondary conveyor belt 331. It also includes: Please refer to this first. Figure 2 - Figure 5 The gap integration mechanism 4 is located on the top side of the output end of the lower conveyor belt 31 and is used to eliminate the interlayer gaps before the photovoltaic backsheet layer 101 and the monocrystalline silicon layer 102, and the monocrystalline silicon layer 102 and the photovoltaic glass layer 103 are stacked. The gap integration mechanism 4 consists of a flip-up gantry 43 rotatably connected to the top of the lower conveyor belt 31 and a fixed gantry 44 fixedly connected to the top of the lower conveyor belt 31. An elastic cover 42 is fixed between the flip-up gantry 43 and the fixed gantry 44. An elastic partition layer 41 is also provided inside the elastic cover 42. Several exhaust holes 414 are provided on the upper and lower sides of the elastic partition layer 41 respectively. Please refer to this first. Figure 6 - Figure 7The guide mechanism 5 is slidably connected to the support of the lower conveyor belt 31 and is used to guide the photovoltaic module to move forward along the lower conveyor belt 31 to avoid the photovoltaic backsheet layer 101, the monocrystalline silicon layer 102, and the photovoltaic glass layer 103 from being misaligned or damaged by collision. The guide mechanism 5 includes an upper flip adsorption component 52 and a lower flip adsorption component 53 disposed on the upper and lower sides of the lower conveyor belt 31. The upper flip adsorption component 52 and the lower flip adsorption component 53 can flip synchronously. The upper flip adsorption component 52 and the lower flip adsorption component 53 are respectively provided with an upper negative pressure port 521 and a lower negative pressure port 532 on the side opposite to the lower conveyor belt 31. The air pressure mechanism (not marked in the figure) is used to provide positive air pressure to the exhaust port 414 and negative air pressure to the upper negative pressure port 521 and the lower flip adsorption component 53, so as to realize the coordinated control of gap integration and negative pressure adsorption.

[0021] To further improve the stability and adaptability of the device, the present invention has also made the following optimizations: Please refer to this first. Figure 4 and Figure 8 - Figure 10 Mounting base plates 45 are symmetrically fixed on the support of the lower conveyor belt 31. The flipping gantry 43 is rotatably connected between the two sets of mounting base plates 45. A tension spring 46 is also fixed between the mounting base plate 45 and the flipping gantry 43. The tension spring 46 has an elastic force that drives the flipping gantry 43 to flip close to the fixed gantry 44 during the process of the photovoltaic glass layer 103 being transported on the secondary conveyor belt 331. When the photovoltaic glass layer 103 is completely detached from the secondary conveyor belt 331, its own weight presses down onto the flipping gantry 43. At this time, the flipping gantry 43 is pressed to overcome the elastic force of the tension spring 46 and flips. During the flipping process of the flipping gantry 43, the elastic partition layer 41 is adaptively stretched, so that the overall tilt of the elastic partition layer 41 gradually conforms to the horizontal plane. The flipping of the flipping gantry 43 buffers the falling impact of the photovoltaic glass layer 103 and automatically adjusts the gap between the photovoltaic glass layer 103 and the monocrystalline silicon layer 102.

[0022] Please refer to this first. Figure 8 - Figure 10 The elastic partition layer 41 is provided with several airbags 413. The positive pressure output end of the air pressure mechanism is connected to the input end of the airbag 413 through a pipe. Several exhaust holes 414 are evenly distributed on the upper and lower sides of the airbag 413. After the airbag 413 is inflated, it outputs a uniform airflow through the exhaust holes 414.

[0023] For details, please refer to Figure 8During the process of the photovoltaic module passing through the gap integration mechanism 4, the airflow in the vertical direction output by the exhaust port 414 can, on the one hand, form an airflow film between the photovoltaic glass layer 103 and the elastic separation layer 41, thereby reducing the sliding friction between the photovoltaic glass layer 103 and the elastic separation layer 41. On the other hand, it can generate air pressure on the upper part of the flexible monocrystalline silicon layer 102, thereby pressing the monocrystalline silicon layer 102 and the photovoltaic backsheet layer 101 to adhere to each other, forcing the monocrystalline silicon layer 102 and the photovoltaic backsheet layer 101 to move forward synchronously with the lower conveyor belt 31, thus avoiding the two from overlapping and misaligning. Please refer to this first. Figure 5 A fixing plate 411 is fixed to one side of the middle of the flip-up gantry 43. The fixing plate 411 is inclined at the same angle as the flip-up gantry 43. A rotating plate 415 is rotatably connected to the middle of the fixing gantry 44. The elastic partition layer 41 has an acute triangular structure. Its short end face is fixed to the fixing plate 411, and one side of its lower end face is fixed to the top of the rotating plate 415. The lower end face extends to one side of the rotating plate 415 and is fixed with a buffer skirt 416. The buffer skirt 416 prevents the edge of the photovoltaic glass layer 103 from colliding with the edge of the elastic partition layer 41 when they separate, and plays a buffer protection role.

[0024] An auxiliary roller 412 is rotatably connected to the top side of the fixed plate 411. The auxiliary roller 412 makes rolling contact with the surface of the photovoltaic glass layer 103, which reduces the transmission resistance of the module and avoids surface scratches caused by sliding friction between the elastic separator layer 41 and the photovoltaic glass layer 103.

[0025] Please refer to this first. Figure 9 - Figure 10 When the weight of the photovoltaic glass layer 103 is fully supported by the auxiliary roller 412 and drives the flipping gantry 43 to flip, the elastic partition layer 41 is gradually pulled from an inclined state to a horizontal state, which further reduces the gap between the photovoltaic glass layer 103 and the monocrystalline silicon layer 102. At this time, under the influence of the elastic partition layer 41, the diameter of the exhaust hole 414 becomes larger and the direction changes. Under the condition that the air flow rate remains unchanged, the output air pressure of a single exhaust hole 414 becomes weaker. As a result, the air pressure output by the exhaust hole 414 forms an airflow film between the photovoltaic glass layer 103 and the elastic partition layer 41, while preventing the photovoltaic glass layer 103 from moving upward. This reduces the displacement friction of the photovoltaic glass layer 103 and maintains the stacking gap between the photovoltaic glass layer 103 and the monocrystalline silicon layer 102.

[0026] Please refer to this first. Figure 6 - Figure 7The guiding mechanism 5 also includes two sets of sliding seats 55 symmetrically slidably connected to both sides of the support of the lower conveyor belt 31. The upper rotating shaft 511 and the upper flipping shaft 523 are fixed inside the upper flipping adsorption component 52. The pressure roller 51 is rotatably connected to the upper rotating shaft 511 to assist in pressing the photovoltaic glass layer 103 and prevent the monocrystalline silicon layer 102 from separating from the photovoltaic glass layer 103 during transmission. The lower rotating shaft 541 and the lower flipping shaft 531 are fixed inside the lower flipping adsorption component 53. The driven roller 54 is rotatably connected to the lower rotating shaft 541 to support the lower conveyor belt 31 and improve the conveying stability. The upper rotating shaft 511 and the lower rotating shaft 541 are rotatably connected between two sets of sliding seats 55. The sliding seats 55 are also provided with two sets of arc-shaped grooves 551 distributed vertically. The ends of the upper flipping shaft 523 and the lower flipping shaft 531 extend into the corresponding arc-shaped grooves 551 and are slidably connected. A return spring 552 is also fixed between the upper flipping shaft 523 and the arc-shaped groove 551. The arc-shaped groove 551 provides a rotation trajectory for the upper flipping adsorption component 52 and the lower flipping adsorption component 53. The return spring 552 can make the upper negative pressure port 521 adaptively fit against the upper surface of the lower conveyor belt 31 to avoid excessive adsorption pressure causing wrinkles in the conveyor belt.

[0027] Please refer to this first. Figure 11 - Figure 12 The upper flipping shaft 523 and the lower flipping shaft 531 extend to the ends of the arc-shaped groove 551 and are jointly sleeved with a connecting power arm 56. The middle of the connecting power arm 56 is rotatably connected to the execution roller 561. An L-shaped guide plate 6 that cooperates with the execution roller 561 is provided on one side of the support of the lower conveyor belt 31. When the sliding seat 55 moves forward with the lower conveyor belt 31 to the maximum stroke, the execution roller 561 slides along the L-shaped guide plate 6. The connecting power arm 56 drives the upper flipping shaft 523 and the lower flipping shaft 531 to flip synchronously, so as to realize the time-sharing adsorption switching between the upper negative pressure port 521 and the lower negative pressure port 532.

[0028] The reset spring 552 has an elastic force that drives the upper negative pressure port 521 on the upper flip-up adsorption member 52 to adhere to the upper surface of the lower conveyor belt 31. When the reset spring 552 is compressed to its maximum stroke, the upper negative pressure port 521 of the upper flip-up adsorption member 52 moves away from the upper surface of the lower conveyor belt 31, and the lower negative pressure port 532 of the lower flip-up adsorption member 53 adheres to the lower surface of the lower conveyor belt 31. In the initial state, the upper negative pressure port 521 adsorbs the upper surface of the lower conveyor belt 31, and the arc-shaped buffer pad 522 abuts against the end of the photovoltaic module to avoid contact. During the transmission process, the three components shift back and forth. After the photovoltaic module has completely passed through the gap integration mechanism 4 and entered the stacking area, the execution roller 561 slides up along the L-shaped guide plate 6, compressing the reset spring 552. This causes the upper negative pressure port 521 to detach from the upper plane of the conveyor belt 31, and the lower negative pressure port 532 to adhere to the lower surface of the lower conveyor belt 31. By utilizing the characteristics of forward transport on the upper surface and reverse transport on the lower surface of the conveyor belt 31, the guide mechanism 5 is driven to shift in the opposite direction to reset, thereby achieving the purpose of automatic resetting and cyclic operation.

[0029] The negative pressure output end of the pneumatic mechanism is connected to the output ends of the upper negative pressure port 521 and the lower negative pressure port 532 through pneumatic pipes. Both the upper negative pressure port 521 and the lower negative pressure port 532 are equipped with electromagnetic control valves. The support of the lower conveyor belt 31 is also equipped with a displacement sensor 7 for calculating the overall displacement distance of the guide mechanism 5. The displacement sensor 7 detects the position of the guide mechanism 5 and controls the opening and closing of the electromagnetic control valve through the controller to realize the time-sharing switching of negative pressure adsorption and adapt to the transmission requirements of the conveying mechanism 3.

[0030] Each sliding seat 55 is provided with a slider 57 on the opposite side. The support of the lower conveyor belt 31 is provided with a groove corresponding to the slider 57. Both sides of the groove are provided with a buffer spring 8 that cooperates with the slider 57. When the guide mechanism 5 moves to the end of the groove with the component, the buffer spring 8 can absorb the impact and prevent the sliding seat 55 from colliding with the support, causing the monocrystalline silicon layer 102 to shift.

[0031] The distance between the pressure roller 51 and the upper surface of the lower conveyor belt 31 is not greater than the total thickness of the photovoltaic backsheet layer 101, the monocrystalline silicon layer 102 and the photovoltaic glass layer 103, ensuring that the pressure roller 51 can lightly press the module when the guide mechanism 5 moves back, avoiding separation between layers during transmission; at the same time, an arc-shaped buffer pad 522 is fixed on the side opposite to the ends of the photovoltaic backsheet layer 101, the monocrystalline silicon layer 102 and the photovoltaic glass layer 103. The arc structure can guide the module to smoothly enter the adsorption area, avoiding collision damage to the ends of the photovoltaic glass layer 103.

[0032] In actual use, the speeds of the lower conveyor belt 31, the middle conveyor belt 32, and the upper conveyor belt 33 are all set to 0.8 m / s to match the 30-second / piece rhythm of the photovoltaic module lamination production line. The angle between the secondary conveyor belt 321 and the middle conveyor belt 32 is adjusted to 15° to guide the monocrystalline silicon layer 102 to be laminated onto the photovoltaic backsheet layer 101. The angle between the secondary conveyor belt 331 and the upper conveyor belt 33 is adjusted to 15° to guide the photovoltaic glass layer 103 to be laminated onto the monocrystalline silicon layer 102. When the photovoltaic module initially enters the gap integration mechanism 4, airflow is discharged through the exhaust port 414, generating an air film to eliminate friction between layers. It then moves forward synchronously with the conveying capacity of the transport mechanism 3. When the guide mechanism 5 returns to its original position, the ends of each layer of the photovoltaic module converge and abut against the arc-shaped buffer pad 522, releasing the negative pressure of the lower negative pressure port 532. At this time, the elastic potential energy of the compressed return spring 552 is released, the upper negative pressure port 521 of the upper flip adsorption component 52 adheres to the upper plane of the lower conveyor belt 31, and the lower negative pressure port 532 of the lower flip adsorption component 53 moves away from the lower plane of the lower conveyor belt 31. The displacement sensor 7 detects the initial position signal of the sliding seat 55 and transmits the signal to the controller. The controller immediately opens the electromagnetic control valve corresponding to the upper negative pressure port 521, generating negative pressure in the upper negative pressure port 521, which tightly adsorbs the upper surface of the photovoltaic backsheet layer 101. This causes the guide mechanism 5 to move forward synchronously with the photovoltaic module and the lower conveyor belt 31, and the gap between each layer is adjusted through the gap integration mechanism 4, completing the overall transport action.

[0033] During this process, the arc-shaped buffer pad 522 at the bottom of the upturning adsorption component 52 first contacts the ends of each layer of the photovoltaic module to limit and buffer the movement; at the same time, the pressure roller 51 restricts the vertical displacement of each layer of the photovoltaic module, ensuring the accuracy of the stacking.

[0034] When the three-layer composite module consisting of photovoltaic backsheet layer 101, monocrystalline silicon layer 102, and photovoltaic glass layer 103 moves to the corner of L-shaped guide plate 6, the actuator roller 561 slides from the horizontal section of L-shaped guide plate 6 into the vertical section, and drives the upper flip shaft 523 and the lower flip shaft 531 to flip upward synchronously through the linkage arm 56. The upper flip shaft 523 moves upward along the arc groove 551, compressing the reset spring 552, so that the upper negative pressure port 521 of the upper flip adsorption member 52 moves away from the lower conveyor belt 31; at the same time, the lower flip shaft 531 moves upward along the arc groove 551, causing the lower negative pressure port 532 of the lower flip adsorption member 53 to adhere to the lower surface of the lower conveyor belt 31.

[0035] Based on the position signal of the actuator roller 561 detected by the displacement sensor 7, the controller immediately closes the electromagnetic control valve of the upper negative pressure port 521 and opens the electromagnetic control valve of the lower negative pressure port 532. The lower negative pressure port 532 generates negative pressure, which adsorbs the lower surface of the lower conveyor belt 31. The reverse motion of the lower surface of the lower conveyor belt 31 drives the guide mechanism 5 to reset.

[0036] Once the stacked photovoltaic modules have completely left the guide mechanism 5, the guide mechanism 5 returns to its initial position. The return spring 552 releases its elastic force, causing the upper flip shaft 523 and the lower flip shaft 531 to return to their original positions. The upper negative pressure port 521 re-fits the upper plane of the lower conveyor belt 31, and the lower negative pressure port 532 moves away from the lower surface of the lower conveyor belt 31. The guide mechanism 5 returns to its initial state, ready for the transport of the next module.

[0037] This invention adapts to the high-speed lamination and handling requirements of photovoltaic modules by using the airflow guidance design of the gap integration mechanism 4 and the time-division adsorption design of the guiding mechanism 5, achieving the goal of non-destructive, high-precision, and continuous handling.

[0038] The above description is merely the best implementation method adopted in light of current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A continuous conveying device for photovoltaic module lamination production, comprising a conveying mechanism (3) for layered conveying of photovoltaic modules, wherein the photovoltaic modules are, from bottom to top, a photovoltaic backsheet layer (101), a monocrystalline silicon layer (102), and a photovoltaic glass layer (103), the conveying mechanism (3) being composed of a lower conveyor belt (31), a middle conveyor belt (32), and an upper conveyor belt (33) arranged equidistantly from bottom to top, wherein the output ends of the middle conveyor belt (32) and the upper conveyor belt (33) are respectively provided with an angle-adjustable secondary conveyor belt one (321) and a secondary conveyor belt two (331), characterized in that, It also includes, The gap integration mechanism (4) is located at the top of the output end of the lower conveyor belt (31), including a rotating gantry (43) and a fixed gantry (44) connected by rotation, with an elastic cover (42) and an elastic partition layer (41) with an exhaust hole (414) between them. The guiding mechanism (5) is slidably connected to the support of the lower conveyor belt (31), and includes an upper flip adsorption component (52) and a lower flip adsorption component (53) that can be flipped synchronously. The two are respectively provided with an upper negative pressure port (521) and a lower negative pressure port (532) for guiding the photovoltaic module to move forward. The pneumatic mechanism provides positive air pressure to the exhaust port (414) and provides negative air pressure to the upper negative pressure port (521) and the lower negative pressure port (532) in a time-sharing manner.

2. The continuous conveying device for photovoltaic module lamination production according to claim 1, characterized in that, A mounting base plate (45) is fixed on the support of the lower conveyor belt (31). The flip-up gantry (43) is rotatably connected to the mounting base plate (45), and a tension spring (46) is provided between the two to drive the flip-up gantry (43) closer to the fixed gantry (44).

3. The continuous conveying device for photovoltaic module lamination production according to claim 1, characterized in that, The elastic partition layer (41) is provided with an airbag (413), and the exhaust holes (414) are evenly distributed on the upper and lower sides of the airbag (413); The flip-up gantry (43) is provided with a fixed plate (411), the fixed gantry (44) is provided with a rotating plate (415), the elastic partition layer (41) is in the shape of an acute triangle, its short end face is fixed to the fixed plate (411), one side of its lower end face is fixed to the rotating plate (415) and extends with a buffer skirt (416).

4. The continuous conveying device for photovoltaic module lamination production according to claim 3, characterized in that, An auxiliary roller (412) is also rotatably connected to one side of the top of the fixed plate (411).

5. The continuous conveying device for photovoltaic module lamination production according to claim 1, characterized in that, The guiding mechanism (5) also includes two sets of sliding seats (55) symmetrically slidably connected to both sides of the support of the lower conveyor belt (31). The upper flip adsorption member (52) is fixed with an upper rotating shaft (511) and an upper flip shaft (523). A pressure roller (51) is rotatably connected to the upper rotating shaft (511). The lower flip adsorption component (53) has a lower rotating shaft (541) and a lower flip shaft (531) fixed inside, and a driven roller (54) is rotatably connected to the lower rotating shaft (541). The upper rotating shaft (511) and the lower rotating shaft (541) are rotatably connected between two sets of sliding seats (55). The sliding seats (55) are also provided with two sets of arc-shaped grooves (551) distributed vertically. The ends of the upper flip shaft (523) and the lower flip shaft (531) extend into the corresponding arc-shaped grooves (551) and are slidably connected. A return spring (552) is also fixed between the upper flip shaft (523) and the arc-shaped groove (551).

6. A continuous conveying device for photovoltaic module lamination production according to claim 5, characterized in that, The upper flipping shaft (523) and the lower flipping shaft (531) extend out of the arc-shaped groove (551) and are jointly sleeved with a connecting power arm (56). The middle part of the connecting power arm (56) is rotatably connected to an execution roller (561). The lower conveyor belt (31) is provided with an L-shaped guide plate (6) on one side of the support, which cooperates with the execution roller (561).

7. A continuous conveying device for photovoltaic module lamination production according to claim 5, characterized in that, The reset spring (552) drives the upper negative pressure port (521) to fit against the upper plane of the lower conveyor belt (31); When compressed to its maximum stroke, the upper negative pressure port (521) moves away and the lower negative pressure port (532) fits against the lower plane of the lower conveyor belt (31).

8. A continuous conveying device for photovoltaic module lamination production according to claim 5, characterized in that, The negative pressure output end of the pneumatic mechanism is connected to the output ends of the upper negative pressure port (521) and the lower negative pressure port (532) through pneumatic pipes. The pneumatic pipes of the upper negative pressure port (521) and the lower negative pressure port (532) are equipped with electromagnetic control valves. The support of the lower conveyor belt (31) is also equipped with a displacement sensor (7) for calculating the overall displacement distance of the guide mechanism (5).

9. A continuous conveying device for photovoltaic module lamination production according to claim 8, characterized in that, The sliding seat (55) is provided with a slider (57), the support of the lower conveyor belt (31) is provided with a corresponding groove, and the sides of the groove are provided with buffer springs (8) that cooperate with the slider (57).

10. A continuous conveying device for photovoltaic module lamination production according to claim 5, characterized in that, The distance between the pressure roller (51) and the lower conveyor belt (31) is not greater than the total thickness of the photovoltaic module, and the end of the upper flip adsorption component (52) is provided with an arc-shaped buffer pad (522).

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