A high-stable press bending device for light flexible solar photovoltaic module

Abstract

The application discloses a kind of high-stable press bending devices of lightweight flexible solar photovoltaic module, it is related to press bending device technical field, including feeding support mechanism, whole preliminary press bending mechanism, edge secondary press bending mechanism and discharge arc shape setting mechanism in turn along the direction of conveyance, whole preliminary press bending mechanism is carried out to flexible solar photovoltaic module by the upper press bending roller and the lower support roller of staggered arrangement whole preliminary press bending, edge secondary press bending mechanism is only carried out to the compensation press bending of the non-power generation edge area of both sides of module by edge elastic press bending component and edge support roller, discharge arc shape setting mechanism is carried out to the support setting of module after press bending by arc-shaped supporting plate, to reduce the risk of central power generation area pressure injury, and improve the edge warping and curvature instability problem after press bending of flexible solar photovoltaic module.

Description

Technical Field

[0001] This invention relates to the field of bending device technology, and in particular to a lightweight, flexible solar photovoltaic module high-stability bending device. Background Technology

[0002] Flexible solar photovoltaic modules typically include a flexible encapsulation layer, a cell array, a backsheet layer, and a flexible support layer. Compared to rigid glass photovoltaic modules, they are lighter, can be attached to curved surfaces, and have strong installation adaptability. Therefore, they are often used in applications requiring curved surface fitting, such as car roofs, ship hulls, curved roofs, curved supports, and mobile energy equipment. In some curved surface installation scenarios, flexible solar photovoltaic modules usually need to be pre-bent to form a curved shape close to the target installation surface before installation. This reduces forced pulling and local bending during subsequent bonding, fixing, or fitting processes, thereby improving the installation fit and batch forming consistency.

[0003] Existing bending methods mostly employ manual bonding, ordinary roller pressing, plate rolling equipment, or simple pallet assistance. Ordinary roller pressing and plate rolling equipment typically apply force to the entire metal sheet or ordinary thin plate, making it difficult to distinguish between the central power generation area and the non-power generation edge area of ​​the flexible solar photovoltaic module. This can easily cause hidden cracks, fatigue, wrinkles, or delamination in the cells, solder strips, and encapsulation layers during the bending process.

[0004] Meanwhile, after the flexible solar photovoltaic module is initially bent, the non-power generation edge areas on both sides are prone to warping due to material springback and insufficient edge constraint. If a second bending is applied to the entire panel, the number of times the central power generation area is subjected to pressure and the risk of damage will increase. Therefore, a bending device is needed that can first perform low-pressure initial bending on the entire panel, then perform secondary compensation bending only on the non-power generation edge areas, and control the final arc state during the unloading stage. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight, flexible solar photovoltaic module with high stability bending device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lightweight flexible solar photovoltaic module high-stability bending device, comprising a feeding support mechanism, an overall preliminary bending mechanism, an edge secondary bending mechanism, and an outlet arc-shaped shaping mechanism arranged sequentially along the conveying direction. The feeding support mechanism, the overall preliminary bending mechanism, the edge secondary bending mechanism, and the outlet arc-shaped shaping mechanism sequentially define a bending path for the flexible solar photovoltaic module to pass through along the conveying direction. The flexible solar photovoltaic module includes a central power generation area and non-power generation edge areas located on both sides of the central power generation area. The overall preliminary bending mechanism includes an upper bending roller and a lower support roller located on the upper and lower sides of the bending path, respectively, and the upper bending roller and the lower support roller are offset along the conveying direction; The edge secondary bending mechanism includes an edge elastic bending component and an edge support roller corresponding to the edge elastic bending component. The edge elastic bending component is located above the position corresponding to the non-power generation edge area in the bending path, and the edge support roller is located below the position corresponding to the non-power generation edge area in the bending path. The edge elastic bending component and the corresponding edge support roller are misaligned and matched along the conveying direction. The discharge arc-shaped shaping mechanism includes a pallet base and an arc-shaped pallet. The arc-shaped pallet is located above the pallet base and on the discharge side of the edge secondary bending mechanism.

[0007] Preferably, the feeding support mechanism includes a feeding frame, a feeding support roller, and feeding lateral guides. The feeding support roller is rotatably mounted on the feeding frame, and the feeding lateral guides are arranged in pairs on the feeding frame and located on both sides of the feeding support roller along the width direction. The pairs of feeding lateral guides form a central guide channel corresponding to the bending path.

[0008] Preferably, the overall preliminary bending mechanism includes a bending frame, an inlet roller group, an upper bending roller mounting base, and a lifting drive. The inlet roller group is rotatably disposed on the feeding side of the bending frame, the lower support roller is rotatably disposed in the middle of the bending frame, the upper bending roller mounting base is vertically slidably disposed on the bending frame and located above the lower support roller, the lifting drive is vertically disposed on the upper part of the bending frame, the output end of the lifting drive faces the upper bending roller mounting base and is drively connected to the upper bending roller mounting base, and the upper bending roller is rotatably disposed on the upper bending roller mounting base.

[0009] Preferably, the edge secondary bending mechanism includes a support beam that extends along the width direction of the flexible solar photovoltaic module. Two sets of edge elastic bending components are respectively arranged on both sides of the support beam along the length direction and correspond to the positions of the two non-power generation edge areas.

[0010] Preferably, the edge elastic bending assembly includes an edge bending wheel, a bending wheel mounting base, a floating support base, a vertical guide base, a vertical cylinder, a floating spring, and a position adjusting handwheel. The vertical guide base is located below the support beam. The floating support base is slidably disposed on the vertical guide base. The vertical cylinder is vertically disposed on the upper part of the vertical guide base, with its output end facing the floating support base and engaging with it. The bending wheel mounting base is movably disposed below the floating support base. The floating spring is sandwiched between the floating support base and the bending wheel mounting base. The edge bending wheel is rotatably disposed on the bending wheel mounting base. The position adjusting handwheel is threaded through the side of the vertical guide base, and its end abuts against the support beam.

[0011] Preferably, the edge support roller is disposed below the corresponding edge bending roller, and the edge support roller is staggered relative to the corresponding edge bending roller along the conveying direction. Both the edge bending roller and the corresponding edge support roller are located in the bending path at positions corresponding to the non-power generation edge area.

[0012] Preferably, the edge secondary bending mechanism includes a lateral adjustment component, which includes a limiting guide wheel, a lateral sliding frame, a threaded sleeve, and an adjusting screw. The lateral sliding frame is slidably disposed on the support beam along the length direction of the support beam. The edge elastic bending component is disposed below the lateral sliding frame. The threaded sleeve is fixedly disposed on the lateral sliding frame. The adjusting screw is rotatably disposed on the support beam along the length direction of the support beam and threadedly engaged with the threaded sleeve. The limiting guide wheel is rotatably disposed on the side of the lateral sliding frame near the edge of the flexible solar photovoltaic module.

[0013] Preferably, the edge secondary bending mechanism includes a transition roller, which is rotatably disposed on the feeding side of the edge secondary bending mechanism and located between the overall primary bending mechanism and the edge elastic bending assembly. The transition roller is located below the bending path, and the axis of the transition roller is parallel to the axis of the edge support roller.

[0014] Preferably, the discharge arc-shaped shaping mechanism includes a discharge guide roller, an upper guide seat, a pallet support frame, and a pallet adjusting cylinder. The discharge guide roller is rotatably mounted on the feed end of the pallet base. One end of the pallet support frame is hinged to the pallet base. The arc-shaped pallet is positioned above the pallet support frame. The upper guide seat is fixedly mounted above the pallet base and located above the arc-shaped pallet. One end of the pallet adjusting cylinder is hinged to the pallet base, and the other end of the pallet adjusting cylinder is connected to the pallet support frame.

[0015] Preferably, there are two feeding guide rollers, with one feeding guide roller closer to the edge secondary bending mechanism being lower than the other feeding guide roller farther away from the edge secondary bending mechanism, and the two feeding guide rollers and the feeding end of the arc-shaped support plate are arranged sequentially along the conveying direction.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention arranges the feeding support mechanism, the overall preliminary bending mechanism, the edge secondary bending mechanism, and the discharge arc-shaped shaping mechanism continuously along the conveying direction. This allows the flexible solar photovoltaic module to be first introduced centrally by the feeding support mechanism, then initially bent by the upper bending roller and the lower support roller, followed by secondary compensation bending only on the non-power generation edge area by the edge elastic bending component and the edge support roller, and finally discharged and shaped by the arc-shaped support plate. This allows the bending of the whole plate, edge compensation, and discharge shaping to form a continuous coordination, reducing the risk of microcracks, solder strip fatigue, and encapsulation layer wrinkles caused by repeated pressure on the central power generation area.

[0017] 2. This invention forms an edge elastic bending assembly by means of an edge bending wheel, a bending wheel mounting base, a floating support base, a vertical guide base, a vertical cylinder, and a floating spring. The edge bending wheel is subjected to downward pressure by the vertical cylinder, while the floating spring provides buffer compensation. After the edge bending wheel and the edge support roller are misaligned and matched along the conveying direction, a local bending moment is formed in the non-power generation edge area, thereby improving the warping and springback of the two sides of the flexible solar photovoltaic module and reducing the pressure damage caused by rigid bending to the edge encapsulation structure of the module.

[0018] 3. This invention adjusts the position of the edge elastic bending assembly along the length of the supporting beam by using a transverse sliding frame, threaded sleeve, adjusting screw, and limiting guide wheel. This ensures that the edge bending wheel corresponds to the non-power generation edge area of ​​the flexible solar photovoltaic module, preventing the secondary bending action at the edge from shifting to the central power generation area. At the same time, the feeding lateral guide forms a central guide channel, reducing the lateral offset of the module when it enters the bending path, thereby improving the consistency of the bending position.

[0019] 4. This invention forms an arc-shaped discharge structure by means of a feeding guide roller, a pallet support frame, a pallet adjusting cylinder, an upper guide seat, and an arc-shaped pallet. This allows the bent flexible solar photovoltaic module to first pass through the staggered feeding guide rollers, and then be output along a preset arc trajectory between the arc-shaped pallet and the upper guide seat. The pallet adjusting cylinder drives the pallet support frame to swing relative to the pallet base, changing the supporting posture of the arc-shaped pallet, thereby reducing the curvature deviation caused by its own weight and material springback during the module discharge stage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2This is a schematic diagram of the overall front view of the present invention.

[0022] Figure 3 This is a schematic diagram of the feeding support mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the overall preliminary bending mechanism structure of the present invention.

[0024] Figure 5 This is a side view of the overall preliminary bending mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the edge secondary bending mechanism of the present invention. Figure 1 .

[0026] Figure 7 This is a schematic diagram of the edge secondary bending mechanism of the present invention. Figure 2 .

[0027] Figure 8 This is a schematic diagram of the edge secondary bending mechanism of the present invention. Figure 3 .

[0028] Figure 9 This is a schematic diagram of the lateral adjustment component structure of the present invention.

[0029] Figure 10 This is a partial structural diagram of the edge elastic bending assembly of the present invention.

[0030] Figure 11 This is a schematic diagram of the discharge arc-shaped shaping mechanism of the present invention.

[0031] In the diagram: 1. Feeding support mechanism; 11. Feeding frame; 12. Feeding support roller; 13. Feeding lateral guide; 2. Overall preliminary bending mechanism; 21. Bending frame; 22. Introducing roller group; 23. Lower support roller; 24. Upper bending roller; 241. Upper bending roller mounting seat; 242. Lifting drive component; 3. Edge secondary bending mechanism; 31. Support beam; 32. Edge elastic bending assembly; 321. Edge bending wheel; 322. Bending wheel mounting seat; 323. Floating support seat; 324. Vertical guide seat; 325. Vertical 326. Cylinder; 327. Floating spring; 328. Position adjustment handwheel; 33. Edge support roller; 34. Transition roller; 35. Lateral adjustment assembly; 351. Limiting guide wheel; 352. Lateral sliding frame; 353. Threaded sleeve; 354. Adjusting screw; 4. Discharge arc-shaped shaping mechanism; 41. Pallet base; 411. Discharge guide roller; 42. Upper guide seat; 43. Arc-shaped pallet; 431. Pallet support frame; 432. Pallet adjustment cylinder; 5. Flexible solar photovoltaic module; 51. Central power generation area; 52. Non-power generation edge area. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 11 As shown, the lightweight flexible solar photovoltaic module high-stability bending device provided by the present invention is essentially a segmented continuous bending device for a single flexible solar photovoltaic module 5. The flexible solar photovoltaic module 5 has a central power generation area 51 and non-power generation edge areas 52 located on both sides of the central power generation area 51. The device is arranged in sequence along the conveying direction as a feeding support mechanism 1, an overall preliminary bending mechanism 2, an edge secondary bending mechanism 3, and a discharge arc-shaped shaping mechanism 4.

[0034] In this embodiment, the feeding support mechanism 1, the overall preliminary bending mechanism 2, the edge secondary bending mechanism 3, and the discharge arc-shaped shaping mechanism 4 form a bending path for the flexible solar photovoltaic module 5 to pass through along the conveying direction. The feeding support mechanism 1 is responsible for feeding the flat flexible solar photovoltaic module 5 into the center. The overall preliminary bending mechanism 2 is responsible for performing preliminary bending of the entire flexible solar photovoltaic module 5. The edge secondary bending mechanism 3 is responsible for performing secondary compensation bending on the non-power generation edge areas 52 on both sides. The discharge arc-shaped shaping mechanism 4 is responsible for providing arc-shaped support and guiding the output of the bent flexible solar photovoltaic module 5.

[0035] The feeding support mechanism 1 includes a feeding frame 11, a feeding support roller 12, and a feeding side guide 13. The feeding frame 11 adopts a profile frame or a plate welded frame to form a stable bearing foundation. The feeding support roller 12 is rotatably mounted on the feeding frame 11 through a roller shaft and a bearing seat. The feeding side guide 13 is arranged in pairs on both sides of the feeding support roller 12 along the width direction. The inner side of the feeding side guide 13 forms a centrally located guide channel after cooperating with the edge of the flexible solar photovoltaic module 5.

[0036] In this embodiment, at least one feeding support roller 12 is connected to the feeding drive motor. The feeding drive motor drives the feeding support roller 12 to rotate through the sprocket and chain drive. Adjacent feeding support rollers 12 are kept synchronized through sprockets, synchronous wheels or drive shafts, so that the flexible solar photovoltaic module 5 can obtain a stable feeding speed before entering the bending path.

[0037] The overall preliminary bending mechanism 2 includes a bending frame 21, an inlet roller group 22, a lower support roller 23, an upper bending roller 24, an upper bending roller mounting seat 241, and a lifting drive component 242. The bending frame 21 is the supporting frame of the overall preliminary bending mechanism 2. The inlet roller group 22 is set on the feeding side of the bending frame 21. The lower support roller 23 is rotatably installed in the middle of the bending frame 21. The upper bending roller mounting seat 241 is slidably installed on the bending frame 21 vertically. The upper bending roller 24 is rotatably installed on the upper bending roller mounting seat 241 and located above the lower support roller 23.

[0038] In this embodiment, the upper bending roller 24 and the lower support roller 23 are staggered along the conveying direction. When the flexible solar photovoltaic module 5 passes through the overall preliminary bending mechanism 2, the lower support roller 23 provides reaction support from below the bending path, and the upper bending roller 24 applies downward pressure from above the bending path. The staggered relationship between the two causes the flexible solar photovoltaic module 5 to form a bending moment, thereby completing the preliminary bending of the entire panel. In this embodiment, the guide roller group 22 is inclined relative to the lower support roller 23 and the upper bending roller 24. The discharge end of the guide roller group 22 extends toward the bending area between the lower support roller 23 and the upper bending roller 24, so that when the flexible solar photovoltaic module 5 enters the overall preliminary bending mechanism 2 from the feeding support mechanism 1, it can gradually transition to the bending area along the inclined support direction, reducing the abrupt end creases generated when the flexible solar photovoltaic module 5 enters between the upper bending roller 24 and the lower support roller 23.

[0039] The lifting drive component 242 adopts a vertical cylinder, hydraulic cylinder or electric push rod. In this embodiment, the vertical cylinder is used as an example for explanation. The lifting drive component 242 is fixed on the upper part of the bending machine frame 21. The output end of the lifting drive component 242 is connected to the upper bending roller mounting seat 241. The bending machine frame 21 is provided with a vertical guide rail or guide groove. The upper bending roller mounting seat 241 moves up and down along the vertical guide rail or guide groove to stabilize the downward pressing position of the upper bending roller 24.

[0040] Both the guide roller group 22 and the lower support roller 23 are mounted on the bending frame 21 via bearing seats. The guide roller group 22 is used to provide transition support before the flexible solar photovoltaic module 5 enters the upper bending roller 24 and the lower support roller 23. The lower support roller 23 is driven by the main conveyor motor through sprocket and chain transmission. After contacting the flexible solar photovoltaic module 5, the upper bending roller 24 rotates passively with the module to reduce the drag caused by the speed difference between the upper and lower surfaces.

[0041] The edge secondary bending mechanism 3 includes a support beam 31, an edge elastic bending component 32, an edge support roller 33, a transition roller 34, and a lateral adjustment component 35. The support beam 31 spans the bending path and extends along the width direction of the flexible solar photovoltaic module 5. Two sets of edge elastic bending components 32 are arranged on both sides of the support beam 31 along the length direction and correspond to the positions of the two non-power generation edge areas 52, respectively.

[0042] The transition roller 34 is rotatably mounted on the feeding side of the edge secondary bending mechanism 3 and is located between the overall preliminary bending mechanism 2 and the edge elastic bending assembly 32. The transition roller 34 is connected to the bracket of the edge secondary bending mechanism 3 through a bearing seat. The axis of the transition roller 34 is parallel to the axis of the edge support roller 33. The transition roller 34 is used to support the flexible solar photovoltaic module 5 after the overall preliminary bending, so as to avoid the module from sagging and abrupt creases between the two bending structures.

[0043] The edge support roller 33 is located below the edge bending roller 321 and is staggered with the edge bending roller 321 along the conveying direction. The edge support roller 33 is rotatably mounted on the lower support structure of the edge secondary bending mechanism 3 through the roller shaft and bearing seat. The edge support roller 33 can be driven to rotate by the main conveying motor through sprocket and chain drive, or it can be driven to rotate by friction with the flexible solar photovoltaic module 5. In this embodiment, the edge support roller 33 is driven to rotate by the main conveying motor through sprocket and chain drive.

[0044] The edge elastic bending assembly 32 includes an edge bending wheel 321, a bending wheel mounting base 322, a floating support base 323, a vertical guide base 324, a vertical cylinder 325, a floating spring 326, and a position adjustment handwheel 327. The vertical guide base 324 is located below the support beam 31. The floating support base 323 is slidably mounted vertically within the vertical guide base 324. The vertical cylinder 325 is fixed to the upper part of the vertical guide base 324 and pushes the floating support base 323 downward. The bending wheel mounting base 322 is located below the floating support base 323. The floating spring 326 is sandwiched between the floating support base 323 and the bending wheel mounting base 322. The edge bending wheel 321 is rotatably mounted on the bending wheel mounting base 322 via a wheel axle and bearings.

[0045] During the secondary bending process at the edge, the vertical cylinder 325 provides the basic downward pressure of the edge bending wheel 321. The floating spring 326 generates elastic buffer between the bending wheel mounting seat 322 and the floating support seat 323, enabling the edge bending wheel 321 to perform small-stroke floating compensation when it contacts the non-power generation edge area 52. The position adjustment handwheel 327 is threaded through the side of the vertical guide seat 324 and its end abuts against the support beam 31, used to limit or fine-tune the position of the floating support seat 323 on the support beam 31.

[0046] The edge bending wheel 321 is a narrow wheel body, and its wheel width is adapted to the width of the non-power generation edge area 52. A flexible covering layer is provided on the outer periphery of the edge bending wheel 321. The flexible covering layer is made of silicone, rubber or polyurethane material to reduce the risk of local pressure damage to the edge encapsulation structure of the flexible solar photovoltaic module 5 during secondary edge bending.

[0047] The lateral adjustment assembly 35 includes a limiting guide wheel 351, a lateral sliding frame 352, a threaded sleeve 353, and an adjusting screw 354. The lateral sliding frame 352 is slidably installed on the support beam 31 along the length direction of the support beam 31. The edge elastic bending assembly 32 is installed below the lateral sliding frame 352. The threaded sleeve 353 is fixed on the lateral sliding frame 352. The adjusting screw 354 is rotatably installed on the support beam 31 along the length direction of the support beam 31 and is threadedly engaged with the threaded sleeve 353. The limiting guide wheel 351 is rotatably installed on the side of the lateral sliding frame 352 near the edge of the flexible solar photovoltaic module 5.

[0048] When adjusting flexible solar photovoltaic modules 5 of different widths, the operator rotates the adjusting screw 354. The adjusting screw 354 drives the threaded sleeve 353 and the transverse sliding frame 352 to move along the length of the support beam 31, so that the edge bending wheel 321 is aligned with the corresponding non-power generation edge area 52. The limiting guide wheel 351 abuts against or approaches the edge of the flexible solar photovoltaic module 5 for lateral limiting, thereby reducing the offset of the edge secondary bending position.

[0049] The discharge arc-shaped shaping mechanism 4 includes a pallet base 41, a feeding guide roller 411, an upper guide seat 42, an arc-shaped pallet 43, a pallet support frame 431, and a pallet adjusting cylinder 432. The pallet base 41 is used to support the discharge arc-shaped shaping mechanism 4. The feeding guide roller 411 is rotatably installed at the feeding end of the pallet base 41. One end of the pallet support frame 431 is hinged to the pallet base 41. The arc-shaped pallet 43 is fixedly installed above the pallet support frame 431. The upper guide seat 42 is fixedly installed above the pallet base 41 and located above the arc-shaped pallet 43.

[0050] In this embodiment, the upper guide seat 42 is installed above the pallet base 41 by bolts. An adjustment hole is provided between the upper guide seat 42 and the pallet base 41. After loosening the bolts, the installation position of the upper guide seat 42 relative to the arc-shaped pallet 43 can be adjusted. After adjustment, the bolts are tightened to fix it.

[0051] One end of the pallet adjusting cylinder 432 is hinged to the pallet base 41, and the other end of the pallet adjusting cylinder 432 is connected to the pallet support frame 431. When the pallet adjusting cylinder 432 extends or retracts, it pushes the pallet support frame 431 to swing around the hinge point between it and the pallet base 41, thereby changing the support posture of the arc-shaped pallet 43 relative to the bending path, so that the arc-shaped pallet 43 can support flexible solar photovoltaic modules 5 with different degrees of curvature.

[0052] Two feeding guide rollers 411 are arranged along the conveying direction and are staggered in height. One feeding guide roller 411, which is closer to the edge secondary bending mechanism 3, is lower than the other feeding guide roller 411, which is farther away from the edge secondary bending mechanism 3. After the flexible solar photovoltaic module 5 leaves the edge secondary bending mechanism 3, it is first received by the lower feeding guide roller 411 and then guided by the higher feeding guide roller 411 to the feeding end of the arc-shaped support plate 43, so that the module has a smoother curvature transition when it enters the arc-shaped support plate 43.

[0053] In this embodiment, the feeding drive motor, main conveyor motor, sprocket and chain transmission components, bearing housing, guide rail, air source treatment components, solenoid valve, and cylinder control valve are mature mechanical matching structures and are not individually numbered in the attached drawings. The above-mentioned power and transmission structures provide conveying, lifting, bending, and angle adjustment power for the feeding support roller 12, the guide roller group 22, the lower support roller 23, the edge support roller 33, the transition roller 34, the discharge guide roller 411, the lifting drive component 242, the vertical cylinder 325, and the pallet adjustment cylinder 432, respectively.

[0054] The complete workflow of this device is as follows: First, the adjusting screw 354 is rotated according to the width of the flexible solar photovoltaic module 5, so that the transverse sliding frame 352 drives the edge elastic bending component 32 to move to the position corresponding to the non-power generation edge area 52, and the lateral position of the component edge is confirmed by the limiting guide wheel 351; then, the downward stroke of the lifting drive component 242 and the extension amount of the pallet adjusting cylinder 432 are adjusted according to the target bending radius, so that the upper bending roller 24 and the arc-shaped pallet 43 are in the corresponding bending and shaping positions.

[0055] After the flexible solar photovoltaic module 5 is placed on the feeding support roller 12, the feeding drive motor drives the feeding support roller 12 to rotate. The feeding lateral guide 13 restricts the flexible solar photovoltaic module 5 from shifting in the width direction, so that the flexible solar photovoltaic module 5 enters the overall preliminary bending mechanism 2 in a centered state. When the flexible solar photovoltaic module 5 enters above the guide roller group 22 and the lower support roller 23, the lifting drive 242 drives the upper bending roller mounting seat 241 to move down. The upper bending roller 24 and the lower support roller 23 are misaligned in the conveying direction, so that the flexible solar photovoltaic module 5 forms a preliminary bending state as a whole.

[0056] After the initial bending of the entire flexible solar photovoltaic module 5, it is received by the transition roller 34 and enters the edge secondary bending mechanism 3. The vertical cylinder 325 drives the floating support seat 323 to move downward. The edge bending wheel 321 presses against the corresponding non-power generation edge area 52 under the elastic buffer of the floating spring 326. After the edge bending wheel 321 and the edge support roller 33 are misaligned, they form a secondary compensation bending on the non-power generation edge area 52. The central power generation area 51 is not directly subjected to the secondary bending action of the edge bending wheel 321.

[0057] After the flexible solar photovoltaic module 5 has undergone secondary edge bending, it enters the discharge arc-shaped shaping mechanism 4. Two staggered discharge guide rollers 411 sequentially receive and guide the flexible solar photovoltaic module 5 into the arc-shaped support plate 43. The upper guide seat 42 limits the output guide space of the module from above the arc-shaped support plate 43. The arc-shaped support plate 43 continuously supports the flexible solar photovoltaic module 5 from below, so that the flexible solar photovoltaic module 5 is output in a preset arc shape and free rebound is reduced.

[0058] In summary, this invention uses an overall preliminary bending mechanism 2 to perform initial bending of the flexible solar photovoltaic module 5 as a whole, an edge secondary bending mechanism 3 to perform compensatory bending of the non-power generation edge area 52, and an outgoing arc-shaped shaping mechanism 4 to control the final outgoing shape after bending. This reduces the secondary pressure on the central power generation area 51 of the flexible solar photovoltaic module 5 during the bending process, while improving edge warping and outgoing springback issues.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight, flexible solar photovoltaic module high-stability bending device, characterized in that, The system includes a feeding support mechanism (1), an overall preliminary bending mechanism (2), an edge secondary bending mechanism (3), and an outlet arc-shaped shaping mechanism (4) arranged sequentially along the conveying direction. The feeding support mechanism (1), the overall preliminary bending mechanism (2), the edge secondary bending mechanism (3), and the outlet arc-shaped shaping mechanism (4) sequentially define the bending path through which the flexible solar photovoltaic module (5) passes along the conveying direction. The flexible solar photovoltaic module (5) includes a central power generation area (51) and non-power generation edge areas (52) located on both sides of the central power generation area (51). The overall preliminary bending mechanism (2) includes an upper bending roller (24) and a lower support roller (23) located on the upper and lower sides of the bending path, respectively. The upper bending roller (24) and the lower support roller (23) are offset along the conveying direction. The edge secondary bending mechanism (3) includes an edge elastic bending component (32) and an edge support roller (33) corresponding to the edge elastic bending component (32). The edge elastic bending component (32) is located above the position corresponding to the non-power generation edge area (52) in the bending path, and the edge support roller (33) is located below the position corresponding to the non-power generation edge area (52) in the bending path. The edge elastic bending component (32) and the corresponding edge support roller (33) are misaligned along the conveying direction. The discharge arc-shaped shaping mechanism (4) includes a pallet base (41) and an arc-shaped pallet (43). The arc-shaped pallet (43) is located above the pallet base (41) and on the discharge side of the edge secondary bending mechanism (3). The feeding support mechanism (1) includes a feeding frame (11), a feeding support roller (12), and a feeding side guide (13). The feeding support roller (12) is rotatably mounted on the feeding frame (11). The feeding side guides (13) are arranged in pairs on the feeding frame (11) and are respectively located on both sides of the feeding support roller (12) along the width direction. The pair of feeding side guides (13) form a central guide channel corresponding to the bending path. The overall preliminary bending mechanism (2) includes a bending frame (21), an inlet roller group (22), an upper bending roller mounting seat (241), and a lifting drive (242). The inlet roller group (22) is rotatably disposed on the feeding side of the bending frame (21). The lower support roller (23) is rotatably disposed in the middle of the bending frame (21). The upper bending roller mounting seat (241) is vertically slidably disposed on the bending frame (21) and located above the lower support roller (23). The lifting drive (242) is vertically disposed on the upper part of the bending frame (21). The output end of the lifting drive (242) faces the upper bending roller mounting seat (241) and is connected to the upper bending roller mounting seat (241) in a transmission connection. The upper bending roller (24) is rotatably disposed on the upper bending roller mounting seat (241). The edge secondary bending mechanism (3) includes a support beam (31) which extends along the width direction of the flexible solar photovoltaic module (5). Two sets of edge elastic bending components (32) are respectively arranged on both sides of the support beam (31) along the length direction and correspond to the positions of the two non-power generation edge areas (52). The edge elastic bending assembly (32) includes an edge bending wheel (321), a bending wheel mounting base (322), a floating support base (323), a vertical guide base (324), a vertical cylinder (325), a floating spring (326), and a position adjustment handwheel (327). The vertical guide base (324) is located below the support beam (31), the floating support base (323) is slidably mounted on the vertical guide base (324) along the vertical direction, and the vertical cylinder (325) is vertically mounted on the upper part of the vertical guide base (324). The output end of the vertical cylinder (325) faces the edge bending wheel (324). A floating support seat (323) is driven to cooperate with the floating support seat (323). The bending wheel mounting seat (322) is vertically movably disposed below the floating support seat (323). The floating spring (326) is sandwiched between the floating support seat (323) and the bending wheel mounting seat (322). The edge bending wheel (321) is rotatably disposed on the bending wheel mounting seat (322). The position adjustment handwheel (327) is threaded through the side of the vertical guide seat (324), and the end of the position adjustment handwheel (327) abuts against the support beam (31). The edge support roller (33) is positioned below the corresponding edge bending roller (321). The edge support roller (33) is staggered relative to the corresponding edge bending roller (321) along the conveying direction. The edge bending roller (321) and the corresponding edge support roller (33) are both located in the bending path at the position corresponding to the non-power generation edge area (52).

2. The lightweight flexible solar photovoltaic module high-stability bending device according to claim 1, characterized in that: The edge secondary bending mechanism (3) includes a lateral adjustment component (35), which includes a limiting guide wheel (351), a lateral sliding frame (352), a threaded sleeve (353), and an adjusting screw (354). The lateral sliding frame (352) is slidably disposed on the support beam (31) along the length direction of the support beam (31). The edge elastic bending component (32) is disposed below the lateral sliding frame (352). The threaded sleeve (353) is fixedly disposed on the lateral sliding frame (352). The adjusting screw (354) is rotatably disposed on the support beam (31) along the length direction of the support beam (31) and threadedly engaged with the threaded sleeve (353). The limiting guide wheel (351) is rotatably disposed on the side of the lateral sliding frame (352) near the edge of the flexible solar photovoltaic module (5).

3. The lightweight flexible solar photovoltaic module high-stability bending device according to claim 1, characterized in that: The edge secondary bending mechanism (3) includes a transition roller (34), which is rotatably disposed on the feeding side of the edge secondary bending mechanism (3) and located between the overall primary bending mechanism (2) and the edge elastic bending assembly (32). The transition roller (34) is located below the bending path, and the axis of the transition roller (34) is parallel to the axis of the edge support roller (33).

4. The lightweight flexible solar photovoltaic module high-stability bending device according to claim 1, characterized in that: The discharge arc-shaped shaping mechanism (4) includes a discharge guide roller (411), an upper guide seat (42), a pallet support frame (431), and a pallet adjusting cylinder (432). The discharge guide roller (411) is rotatably mounted on the feeding end of the pallet base (41). One end of the pallet support frame (431) is hinged to the pallet base (41). The arc-shaped pallet (43) is mounted above the pallet support frame (431). The upper guide seat (42) is fixedly mounted above the pallet base (41) and located above the arc-shaped pallet (43). One end of the pallet adjusting cylinder (432) is hinged to the pallet base (41), and the other end of the pallet adjusting cylinder (432) is connected to the pallet support frame (431).

5. The lightweight flexible solar photovoltaic module high-stability bending device according to claim 4, characterized in that: There are two feeding guide rollers (411). One feeding guide roller (411) closer to the edge secondary bending mechanism (3) is lower than the other feeding guide roller (411) farther away from the edge secondary bending mechanism (3). The two feeding guide rollers (411) and the feeding end of the arc-shaped support plate (43) are arranged sequentially along the conveying direction.

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