Photovoltaic frame stacking system

Abstract

The application discloses a photovoltaic frame stacking system, which comprises a feeding unit and a paper laying unit. The feeding unit comprises a gantry arranged along an X direction, the gantry has a movement dimension in a Y direction, a pair of material taking supports are arranged on the gantry, the material taking supports have two movement dimensions in the X direction and a Z direction, a material taking clamp and a material taking suction cup are arranged at the bottom of the material taking supports, a feeding platform, a material turning device and a material placing platform are arranged at the lower part of the gantry along the Y direction, the material turning device periodically turns over the photovoltaic frame on the feeding platform and sends the photovoltaic frame to the material placing platform. The photovoltaic frame stacking system realizes automatic stacking of the photovoltaic frame through automatic components, greatly improves the stacking efficiency and reduces the labor cost.

Description

Technical Field

[0001] This invention relates to a processing equipment for photovoltaic frames, and more specifically, a photovoltaic frame stacking system. Background Technology

[0002] like Figure 20 As shown, the photovoltaic frame L includes a long strip-shaped profile L1 and corner brackets L2 located at both ends of the profile L1. The profile L1 has a hollow structure, and the corner brackets L2 are inserted and fixed to both ends of the profile L1. It should be noted that... Figure 20 The orientation of the photovoltaic frame L is defined as facing upwards. For ease of transport, the photovoltaic frames L need to be stacked on a pallet, typically using an alternating upright and reverse stacking method, such as... Figure 18 and Figure 19 As shown. To protect the external structure of the profile L1, a layer of interlayer paper G needs to be laid between each layer of photovoltaic frame L. Additionally, to protect the corner brackets, corner bracket paper J also needs to be laid on top of them. Currently, the paper laying and packaging work is primarily manual, and efficiency needs to be improved. Summary of the Invention

[0003] Therefore, it is necessary to provide a photovoltaic frame stacking system to address the aforementioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A photovoltaic frame palletizing system, characterized in that the photovoltaic frame palletizing system includes a feeding unit and a paper laying unit.

[0006] The feeding unit includes a gantry arranged along the X direction, the gantry having a movement dimension in the Y direction, a pair of material-picking supports on the gantry having two movement dimensions in the X and Z directions, and material-picking grippers and suction cups at the bottom of the material-picking supports. The lower part of the gantry includes a feeding platform, a tilter, and a discharging platform arranged along the Y direction. The tilter periodically flips the photovoltaic frames on the feeding platform and delivers them to the discharging platform.

[0007] The paper-laying unit includes a pallet platform for placing a pallet. The pallet platform has a movement dimension in the Z direction. A paper-clamping beam is provided on the upper part of the pallet platform. A pair of paper clamps are provided on the paper clamping beam. The paper clamps have a movement dimension in the X direction. The paper clamping beam has a movement dimension in the Y direction. A pair of paper feeders are provided on one side of the pallet platform. The paper feeders have a movement dimension in the X direction. The paper feeders output interlayer paper and corner paper. The paper clamps pick up the interlayer paper and corner paper and deliver them to the photovoltaic frame on the pallet.

[0008] In a preferred embodiment of the present invention, the flipper includes a flipping bracket, on which a pair of movable bases are provided. The movable bases have a movement dimension in the X direction. The movable bases are provided with a rotating seat and a rotating arm. The rotating arm can rotate in the YZ plane. The rotating arm is provided with an upper clamping bar, a lower clamping bar, and a clamping bar cylinder. The clamping bar cylinder drives the upper clamping bar, so that the upper clamping bar and the lower clamping bar clamp the photovoltaic frame.

[0009] In a preferred embodiment of the present invention, the upper clamping strip is provided with a plurality of upper clamping grooves.

[0010] In a preferred embodiment of the present invention, the paper feeder includes a paper feed base, on which a folding component and a paper laying component are provided. The folding component outputs corner code paper, and the paper laying component outputs interlayer paper.

[0011] In a preferred embodiment of the present invention, the paper feeder includes a paper feed platform, and the paper feed platform is provided with a first paper feed tray and a second paper feed tray.

[0012] In a preferred embodiment of the present invention, the origami assembly includes an origami base, on which a first mounting slot is provided. The side wall of the first mounting slot is provided with a first mounting opening, a second mounting opening, and a third mounting opening. A first clamping roller and a second clamping roller are provided in the first mounting opening. A first disc-shaped plate and a first V-shaped groove plate are provided in the second mounting opening. A second disc-shaped plate and a second V-shaped groove plate are provided in the third mounting opening. The paper output end of the first mounting slot is provided with a V-shaped paper output channel. A first scissor is provided at the end of the origami base.

[0013] In a preferred embodiment of the present invention, the paper-laying assembly includes a paper-laying base, a second mounting slot on the paper-laying base, a fourth mounting opening and a fifth mounting opening on the side wall of the second mounting slot, a first pressure roller in the fourth mounting opening, a pair of second pressure rollers in the fifth mounting opening, a guide block at the paper output end of the second mounting slot, a through guide gap in the guide block, and a second scissors at the end of the paper-laying base.

[0014] In a preferred embodiment of the present invention, the paper clamp includes a paper clamping platform. An offset cylinder is provided on the upper part of the paper clamping platform. The offset cylinder is fixedly connected to the paper clamping beam. The paper clamping platform has a movement dimension along the length direction of the paper clamping beam. A first paper clamping cylinder and a second paper clamping cylinder are provided on the lower part of the paper clamping platform. A first clamping head is provided on the first paper clamping cylinder, and a second clamping head is provided on the second paper clamping cylinder. The first clamping head is used to clamp the corner code paper, and the second clamping head is used to clamp the interlayer paper.

[0015] A method for stacking photovoltaic frames, comprising:

[0016] Step 1: Place an empty pallet on the pallet platform, which has a motion dimension in the Z direction;

[0017] Step 2: Lay release paper on the surface of the tray from Step 1;

[0018] Step 3: Transfer the upward-facing photovoltaic frame to the tray and cover it with the release paper from Step 2;

[0019] Step 4: Cut the release liner;

[0020] Step 5: The tray platform is lowered to a preset thickness, where the preset thickness is the thickness of the entire photovoltaic frame.

[0021] Step 6: Lay corner code paper on top of the photovoltaic frame in step 3;

[0022] Step 7: Transfer the downward-facing photovoltaic frame to the upper photovoltaic frame and cover it with the corner code paper from Step 6.

[0023] Step 8: Cut the corner clip paper;

[0024] Step 9: The pallet platform is lowered again to the preset thickness;

[0025] Step 10: Lay release paper on the surface of the photovoltaic frame in step 7;

[0026] Step 11: Repeat steps 3 through 10.

[0027] In a preferred embodiment of the present invention, in step 7, when the downward-facing photovoltaic frame is covered with corner code paper, the tray platform simultaneously lifts upward to a preset height.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] This invention provides a photovoltaic frame stacking system. This photovoltaic frame stacking system realizes automated stacking of photovoltaic frames through automated components, which greatly improves stacking efficiency and reduces labor costs. Attached Figure Description

[0030] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of the photovoltaic frame stacking system of the present invention;

[0032] Figure 2 for Figure 1 A three-dimensional structural diagram of the flipper in the photovoltaic frame palletizing system;

[0033] Figure 3 for Figure 2 A magnified view of the details of region A in the diagram;

[0034] Figure 4 for Figure 1 A three-dimensional structural diagram of the paper-laying unit in the diagram;

[0035] Figure 5 for Figure 4 A three-dimensional structural diagram of the paper clamp in the image;

[0036] Figure 6 for Figure 4 A three-dimensional structural diagram of the paper feeder in the diagram;

[0037] Figure 7 for Figure 6 A three-dimensional structural diagram of the paper feeder, providing another perspective;

[0038] Figure 8 for Figure 5 An exploded three-dimensional structural diagram of the paper feeder in the image;

[0039] Figure 9 for Figure 6 A three-dimensional structural exploded view of the origami components;

[0040] Figure 10 for Figure 6 A three-dimensional structural diagram of the paper-laying component;

[0041] Figure 11 for Figure 9 A schematic diagram of the cooperation structure between the first and second clamping rollers of the origami assembly;

[0042] Figure 12 for Figure 9 A schematic diagram of the mating structure between the first disc-shaped plate and the first V-groove plate of the origami component;

[0043] Figure 13 for Figure 9 A schematic diagram of the mating structure between the second disc and the second V-groove of the origami component;

[0044] Figure 14 for Figure 9 A schematic diagram of the working process of the origami components;

[0045] Figure 15 This is a schematic diagram of the stacking process of the photovoltaic frame stacking system of the present invention, where the first layer of photovoltaic frame is being laid.

[0046] Figure 16 This is a schematic diagram of the stacking process of the photovoltaic frame stacking system of the present invention, where the second layer of photovoltaic frame is being laid.

[0047] Figure 17 This is a schematic diagram of the stacking process of the photovoltaic frame stacking system of the present invention, where the third layer of photovoltaic frame is being laid.

[0048] Figure 18 A three-dimensional structural diagram of photovoltaic frame stacking;

[0049] Figure 19 for Figure 18 A magnified view of the details of region B in the diagram;

[0050] Figure 20 This is a schematic diagram of the existing photovoltaic frame structure. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0052] like Figures 1 to 3 As shown, the photovoltaic frame palletizing system includes a feeding unit P1 and a paper laying unit P2.

[0053] The feeding unit P1 includes a gantry 61 arranged along the X direction, and the gantry 61 has a movement dimension in the Y direction. A pair of picking supports 62 are provided on the gantry 61, each with two movement dimensions in the X and Z directions. The bottom of each picking support 62 is equipped with a picking gripper 621 and a picking suction cup 622. The lower part of the gantry 61 is provided with a feeding platform 63, a flipper 64, and a discharging platform 65 arranged along the Y direction. The flipper 64 periodically flips the photovoltaic frames on the feeding platform 63 and delivers them to the discharging platform 65. Further explanation will follow.

[0054] The flipper 64 includes a flipper bracket 641, on which a pair of movable bases 642 are provided. The movable bases 642 have a movement dimension in the X direction. The movable bases 642 are provided with a rotating seat 643 and a rotating arm 644. The rotating arm 644 can rotate in the YZ plane. The rotating arm 644 is provided with an upper clamping bar 645, a lower clamping bar 646 and a clamping bar cylinder 647. The clamping bar cylinder 647 drives the upper clamping bar 645, so that the upper clamping bar 645 and the lower clamping bar 646 clamp the photovoltaic frame.

[0055] In addition, the upper clamping bar 645 is provided with several upper clamping grooves 6451.

[0056] like Figure 4 As shown, the paper-laying unit P2 includes a tray platform 51 for placing a tray P22. The tray platform 51 has a movement dimension in the Z direction. A paper-clamping beam 53 is provided on the upper part of the tray platform 51. A pair of paper clamps 54 are provided on the paper-clamping beam 53, and the paper clamps 54 have a movement dimension in the X direction. The paper clamping beam 53 has a movement dimension in the Y direction. A pair of paper feeders P21 are provided on one side of the tray platform 51. The paper feeders P21 have a movement dimension in the X direction. The paper feeders P21 output interlayer paper and corner paper. The paper clamps 54 clamp the interlayer paper and corner paper and deliver them to the photovoltaic frame on the tray P22.

[0057] like Figure 5 As shown, the paper clamp 54 includes a paper clamping platform 541. The upper part of the paper clamping platform 541 is provided with an offset cylinder 542, which is fixedly connected to the paper clamping beam 53. The paper clamping platform 541 has a movement dimension along the length direction of the paper clamping beam 53. The lower part of the paper clamping platform 541 is provided with a first paper clamping cylinder 543 and a second paper clamping cylinder 545. The first paper clamping cylinder 543 is provided with a first chuck 544, and the second paper clamping cylinder 545 is provided with a second chuck 546. The first chuck 544 is used to clamp the corner code paper, and the second chuck 546 is used to clamp the interlayer paper.

[0058] It should be noted that the first clamp 544 uses a wedge-shaped strip and a wedge-shaped groove to fit the corner code paper. The second clamp 546 uses a pair of flat plates to fit the interlayer paper.

[0059] like Figure 6 , Figure 7 and Figure 8 As shown, the paper feeder P21 includes a paper feed base 10, on which a paper folding assembly 20 and a paper laying assembly 30 are provided. The paper folding assembly 20 outputs corner paper, and the paper laying assembly 30 outputs interlayer paper.

[0060] The paper feeder 10 includes a paper feed platform 11, on which a first paper feed tray 12 and a second paper feed tray 13 are provided.

[0061] like Figure 9As shown, the origami assembly 20 includes an origami base 21, on which a first mounting slot 22 is provided. The side wall of the first mounting slot 22 is provided with a first mounting opening 23, a second mounting opening 24 and a third mounting opening 25. The first mounting opening 23 is provided with a first clamping roller 231 and a second clamping roller 232. The second mounting opening 24 is provided with a first disc 241 and a first V-shaped groove 242. The third mounting opening 25 is provided with a second disc 251 and a second V-shaped groove 252. The end of the origami base 21 is provided with a first scissors 26.

[0062] In addition, the paper output end of the first mounting bracket 22 is provided with a V-shaped paper output channel 27. It should be noted that the paper output channel 27 can be obtained by hollowing out the first mounting bracket 22, or it can be a V-shaped open slot.

[0063] like Figure 10 As shown, the paper-laying assembly 30 includes a paper-laying base 31, on which a second mounting slot 32 is provided. The side wall of the second mounting slot 32 has a fourth mounting opening 33 and a fifth mounting opening 34. A first pressure roller 331 is disposed within the fourth mounting opening 33, and a pair of second pressure rollers 341 are disposed within the fifth mounting opening 34. A guide block 36 is provided at the paper output end of the second mounting slot 32, and a through guide slot 361 is provided within the guide block 36. A second scissor 35 is provided at the end of the paper-laying base 31.

[0064] The working process of the origami component 20 is explained below.

[0065] like Figure 11 As shown, the edges of the first clamping roller 231 and the second clamping roller 232 have a limiting ring structure, which has the function of preventing deviation.

[0066] like Figure 12 As shown, when the first disc 241 and the first V-groove 242 are engaged, the edge of the first V-groove 242 is provided with a limiting ring structure, which also has the function of preventing deviation.

[0067] like Figure 13 As shown, the second disc 251 and the second V-groove disc 252 are matched. It can be clearly seen that the edge angle of the second disc 251 is smaller than that of the first disc 241, and the edge of the second disc 251 appears sharper.

[0068] As shown in 14, the initial paper tape fed out by the first paper feeding tray 12 is defined as paper tape S0, the paper tape between the first disc 241 and the second disc 251 is defined as paper tape S1, and the paper tape after the second disc 251 is defined as paper tape S2.

[0069] The working process is as follows: Paper tape S0 is shaped by the compression of the first disc-shaped plate 241 and the first V-groove plate 242, and undergoes a first fold to obtain paper tape S1. Then, paper tape S1 is shaped by the compression of the second disc-shaped plate 251 and the second V-groove plate 252, and undergoes a second fold to obtain paper tape S2. Paper tape S2 then passes through the paper output channel 27. The first clamp 544 of the paper clamp 54 clamps the end of paper tape S2 and pulls it to the required position, and the first scissors 26 cuts the paper tape.

[0070] It should be noted that the first disc-shaped disk 241 and the first V-shaped groove disk 242 constitute the first folding structure, and the second disc-shaped disk 251 and the second V-shaped groove disk 252 constitute the second folding structure. Through two folds, the paper strip S0 fed by the first paper feeding disk 12 is molded into a paper strip S2. Finally, the folding angle of the paper strip S2 is approximately between 45 degrees and 90 degrees.

[0071] It should be noted that due to the paper tape's resilience and the relatively long length of the paper (approximately 2 meters), without a second folding structure to deepen the creases, the paper tape may flatten out again. Once the paper tape flattens out, it cannot accurately cover the corner code.

[0072] in addition, Figure 4 The paper-laying unit P2 in the diagram shows a pair of paper feeders P21, that is, Figure 4 The paper-laying unit P2 contains a pair of folding components 20, which fold in opposite directions. For example, the corner paper output by one folding component 20 has a "V" shaped cross-section, while the corner paper output by the other folding component 20 has a "Λ" shaped cross-section, also known as an inverted "V". There are many ways to produce corner paper with a "Λ" cross-section. One method is to interchange the positions of the first clamping roller 231 and the second clamping roller 232, interchange the positions of the first disc 241 and the first V-groove disc 242, and interchange the positions of the second disc 251 and the second V-groove disc 252, while simultaneously inverting the position of the paper output channel 27. Another method is to... Figure 9 The origami component 20 is inverted.

[0073] The working process of the paper laying component 30 is similar to that of the origami component 20, and will not be described again. Unlike the origami component 20, after the paper strip is drawn out from the guide slot 361 of the guide block 36, it is pulled to the required position by the second clamp 546 of the paper clamp 54, and the second scissors 35 cuts the paper strip.

[0074] The working principle of this photovoltaic frame stacking system is explained below.

[0075] Step 1: Place the empty pallet P22 onto the pallet platform 51;

[0076] Step 2, as follows Figure 15 As shown, when the paper clamping beam 53 is activated, the paper laying assembly 30 of the paper clamp 54 works first, pulling out a pair of release papers G on the surface of the empty tray P22.

[0077] Step 3, as follows Figure 1 As shown, the photovoltaic frame L is fed along direction F1 via the feeding platform 63, with the photovoltaic frame L facing upwards. After a preset number of photovoltaic frames L are in place, the two picking brackets 62 descend along the -Z direction. Upon reaching a preset position, the two picking brackets simultaneously merge inwards (relative movement). After reaching a preset distance, the picking gripper 621 actuates, clamping the entire photovoltaic frame L. Next, the two picking brackets 62 ascend along the +Z direction, while the gantry 61 moves along the -Y and +X directions until the entire photovoltaic frame L moves above the empty tray P22. The two picking brackets 62 descend along the -Z direction, releasing the entire photovoltaic frame L onto the tray P22. At this point, the photovoltaic frame L on the tray P22 faces upwards and presses against the pair of release papers G laid in step 2. The second scissors 35 cuts the release paper G. The tray platform 51 lowers by a preset height, the preset height being the thickness of the entire photovoltaic frame. The paper clamp 54 resets again, returning to the vicinity of the paper feeder P21. To align the corner code paper with the release liner, a pair of paper feeders P21 move towards each other, and simultaneously, a pair of paper clamps 54 also move towards each other. At this time, the folding assembly 20 of the paper clamps 54 begins to clamp the paper, pulling out a pair of corner code papers J above the entire photovoltaic frame L, as shown... Figure 16 As shown. It should be noted that the cross-section of the corner code paper J on the left is "V" shaped, and the cross-section of the corner code paper J on the right is "Λ" shaped;

[0078] Step 4, return again Figure 1The photovoltaic frame L is fed along direction F1 via the feeding platform 63, with the photovoltaic frame L facing upwards. Once the preset number of photovoltaic frames L are in place, the moving base 642 of the flipper 64 moves relative to the frame, activating the clamping cylinder 647, which clamps the photovoltaic frame L with the upper clamping bar 645 and lower clamping bar 646. Next, the rotating seat 643 drives the rotating arm 644 to rotate 180 degrees, flipping the entire photovoltaic frame L and transferring it to the unloading platform 65. The gantry 61 and the picking bracket 62 then operate, similarly removing the entire photovoltaic frame L from the unloading platform 65 using a vacuum suction cup and pressing it onto the first layer of photovoltaic frame L. As the second layer of the photovoltaic frame L is about to press onto the first layer of the photovoltaic frame L, the tray platform 51 moves up a preset first distance along the +Z direction. Simultaneously, the two material-picking brackets 62 move down a preset second distance along the -Z direction. Through an "up-down" method, the suspended pair of corner code papers J from step 3 are quickly pressed down. The advantage of this "up-down" method is that it prevents the corner code paper J from deforming or shifting during the pressing down of the second layer of the photovoltaic frame L. The amplitude of the "up-down" needs to be adjusted according to the on-site working conditions. Next, the second scissors 35 cuts the corner code paper J. The tray platform 51 then lowers again to a preset height, the preset height being the thickness of the photovoltaic frame. The paper clamp 54 resets, returning to the vicinity of the paper feeder P21. The pair of paper feeders P21 move in opposite directions, and simultaneously, the pair of paper clamps 54 also move in opposite directions, returning to the... Figure 15 The paper is positioned in the middle. At this time, the paper-laying assembly 30 of the paper clamp 54 begins the paper-laying operation, pulling out a pair of release papers G from the surface of the second layer of photovoltaic frame L. As for how the gantry 61, the material-picking bracket 62, and the material-turning device 64 are reset, they will not be described here.

[0079] Repeat the above steps to finally obtain the following result: Figure 18 The photovoltaic frame stack shown.

[0080] It should be noted that, in Figures 15 to 17 The image shows two units of a complete photovoltaic (PV) frame. For practical purposes, the number of units in a complete PV frame can be one or more. If it's more than two, the process for creating a complete PV frame can be repeated. Furthermore, a complete PV frame is defined as a set of parallel arrangements of PV frames.

[0081] This photovoltaic frame stacking system uses automated components to achieve automated stacking of photovoltaic frames, greatly improving stacking efficiency.

[0082] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. A photovoltaic frame stacking system, characterized in that, The photovoltaic frame palletizing system includes a feeding unit (P1) and a paper laying unit (P2). The feeding unit (P1) includes a gantry (61) arranged along the X direction. The gantry (61) has a movement dimension in the Y direction. A pair of picking brackets (62) are provided on the gantry (61). The picking brackets (62) have two movement dimensions in the X and Z directions. The bottom of the picking brackets (62) is provided with a picking gripper (621) and a picking suction cup (622). The lower part of the gantry (61) is provided with a feeding platform (63), a flipper (64), and a discharging platform (65) arranged along the Y direction. The flipper (64) periodically flips the photovoltaic frames on the feeding platform (63) and sends them to the discharging platform (65). The paper-laying unit (P2) includes a tray platform (51) for placing a tray (P22). The tray platform (51) has a movement dimension in the Z direction. A paper-clamping beam (53) is provided on the upper part of the tray platform (51). A pair of paper clamps (54) are provided on the paper clamping beam (53). The paper clamps (54) have a movement dimension in the X direction. The paper clamping beam (53) has a movement dimension in the Y direction. A pair of paper feeders (P21) are provided on one side of the tray platform (51). The paper feeders (P21) have a movement dimension in the X direction. The paper feeders (P21) output interlayer paper and corner paper. The paper clamps (54) clamp the interlayer paper and corner paper and send them to the photovoltaic frame on the tray (P22).

2. The photovoltaic frame stacking system according to claim 1, characterized in that, The flipper (64) includes a flipper bracket (641), on which a pair of movable bases (642) are provided. The movable bases (642) have a movement dimension in the X direction. The movable bases (642) are provided with a rotating seat (643) and a rotating arm (644). The rotating arm (644) can rotate in the YZ plane. The rotating arm (644) is provided with an upper clamping bar (645), a lower clamping bar (646) and a clamping bar cylinder (647). The clamping bar cylinder (647) drives the upper clamping bar (645) so that the upper clamping bar (645) and the lower clamping bar (646) clamp the photovoltaic frame.

3. The photovoltaic frame stacking system according to claim 2, characterized in that, The upper clamping bar (645) is provided with a plurality of upper clamping grooves (6451).

4. The photovoltaic frame stacking system according to claim 1, characterized in that, The paper feeder (P21) includes a paper feed base (10), on which a paper folding component (20) and a paper laying component (30) are provided. The paper folding component (20) outputs corner paper, and the paper laying component (30) outputs interlayer paper.

5. The photovoltaic frame palletizing system according to claim 4, characterized in that, The paper feeder (10) includes a paper feed platform (11), on which a first paper feed tray (12) and a second paper feed tray (13) are provided.

6. The photovoltaic frame palletizing system according to claim 4, characterized in that, The origami assembly (20) includes an origami base (21), on which a first mounting slot (22) is provided. The side wall of the first mounting slot (22) is provided with a first mounting opening (23), a second mounting opening (24) and a third mounting opening (25). The first mounting opening (23) is provided with a first clamping roller (231) and a second clamping roller (232). The second mounting opening (24) is provided with a first disc (241) and a first V-shaped groove (242). The third mounting opening (25) is provided with a second disc (251) and a second V-shaped groove (252). The paper output end of the first mounting slot (22) is provided with a V-shaped paper output channel (27). The end of the origami base (21) is provided with a first scissor (26).

7. The photovoltaic frame palletizing system according to claim 4, characterized in that, The paper-laying assembly (30) includes a paper-laying base (31), on which a second mounting slot (32) is provided. The side wall of the second mounting slot (32) is provided with a fourth mounting opening (33) and a fifth mounting opening (34). A first pressure roller (331) is provided in the fourth mounting opening (33), and a pair of second pressure rollers (341) are provided in the fifth mounting opening (34). A guide block (36) is provided at the paper output end of the second mounting slot (32), and a through guide gap (361) is provided in the guide block (36). A second scissor (35) is provided at the end of the paper-laying base (31).

8. The photovoltaic frame stacking system according to claim 1, characterized in that, The paper clamp (54) includes a paper clamping platform (541), an offset cylinder (542) is provided on the upper part of the paper clamping platform (541), the offset cylinder (542) is fixedly connected to the paper clamping beam (53), the paper clamping platform (541) has a movement dimension along the length direction of the paper clamping beam (53), the lower part of the paper clamping platform (541) is provided with a first paper clamping cylinder (543) and a second paper clamping cylinder (545), the first paper clamping cylinder (543) is provided with a first clamp (544), the second paper clamping cylinder (545) is provided with a second clamp (546), the first clamp (544) is used to clamp the corner code paper, and the second clamp (546) is used to clamp the interlayer paper.

9. A method for stacking photovoltaic frames, comprising: Step 1, placing an empty pallet (P22) on a pallet platform (51), wherein the pallet platform (51) has a movement dimension in the Z direction; Step 2, laying release paper (G) on the surface of the pallet (P22) in Step 1; Step 3, transferring the upward-facing whole photovoltaic frame onto the pallet (P22) and pressing the release paper (G) in Step 2 onto it; Step 4, cutting the release paper (G); Step 5, lowering the pallet platform (51) by a preset thickness, wherein the preset thickness is the thickness of the whole photovoltaic frame; Step 6, laying corner code paper (J) above the whole photovoltaic frame in Step 3; Step 7, transferring the downward-facing whole photovoltaic frame onto the lower whole photovoltaic frame and pressing the corner code paper (J) in Step 6 onto it; Step 8, cutting the corner code paper (J); Step 9, lowering the pallet platform (51) again by a preset thickness; Step 10, laying release paper (G) on the surface of the whole photovoltaic frame in Step 7; Step 11, repeating Steps 3 to 10.

10. The photovoltaic frame stacking method according to claim 9, characterized in that, In step 7, when the downward-facing photovoltaic frame is covered with corner code paper (J), the tray platform (51) is simultaneously lifted upward to a preset height.

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