Lateral strapping equipment and strapping method for stacked photovoltaic modules

Abstract

The invention discloses lateral binding equipment and binding method.The lateral binding equipment comprises a conveying mechanism, a binding mechanism and a tape reel which are sequentially arranged left and right, the binding mechanism comprises a rack, and a tape melting rotating structure and a tape threading structure which can ascend and descend along the rack are installed on the rack; the rack is provided with a first guide piece used for lifting the melting belt rotating structure and the belt penetrating structure, an auxiliary belt connecting structure is arranged on the left side of the rack, and the melting belt rotating structure comprises a first rotating assembly, a belt pulling assembly and a belt melting assembly; the threading structure comprises a second rotating assembly and a threading assembly. The device has the beneficial effects that the humanoid structural design is adopted, flexible threading in a limited space is achieved, efficiency is high, safety and reliability are achieved, ribbon collecting and ribbon melting can be completed in the limited space, ribbon bundling is firm, and the bundling quality is high; the whole structural design is ingenious and simple, the occupied space is small, the integration degree is high, the humanoid degree is high, and accurate, safe and efficient binding of the binding belt can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a lateral bundling device and a bundling method for stacked photovoltaic modules. Background Art

[0002] Packaging strapping, also known as strapping or simply cable ties, is primarily made of polyethylene, polypropylene resin, and cold-rolled steel strip, though nylon and polyester are also available. It's produced through extrusion, uniaxial stretching, and heat treatment for bluing. In addition to corrugated cardboard boxes, hot-rolled steel coils, and cold-rolled steel coils, it can also be used to bundle glass, pipes, materials, and stacked photovoltaic panels. Currently, cable ties are commonly used to wrap around stacked materials, tightening them to secure the goods. Common strapping methods include vertical or horizontal strapping, where two pallets of packaged materials are stacked on top of each other and then secured with strapping tape to form a single package. Cable ties are usually applied to the top and bottom surfaces of stacked materials, or passed through the upper and lower pallets to bundle the upper and lower pallets and materials into a whole. This type of packaging and bundling is a flat, parallel bundling method. After the materials are bundled, they are tightened in a single direction, and each tightening tie is independent of each other. There is still a risk of displacement, deformation, and even stacking during transportation of stacked materials.

[0003] To improve the stability and reliability of stacked materials, a diagonal strapping method is often used. This involves strapping the two tilted, opposing legs of the upper and lower pallets. This allows the stacked materials to be tightened in multiple directions, ensuring they do not shift or deform. This existing strapping method is mostly manual, resulting in low efficiency and a waste of manpower. While some strapping equipment is capable of this, these are somewhat complex. For example, the strapping equipment for stacked materials disclosed in patent publication number CN118145073A includes a first strapping slot device, a second strapping slot device, a head device and a relay device. The structure is complex and the operation is cumbersome during the strapping process. For example, the first strapping slot assembly needs to be inserted into the first pier corner to form a first strapping channel that bypasses the first pier corner; then the head device and the relay device are moved to the first pier corner, and the head device supplies the strapping strap into the first strapping channel, and then receives and fixes the end of the strapping strap in the first strapping channel through the relay device; finally, the head device implements the strapping, so that the strapping strap is disengaged from the first strapping channel and bypasses the first pier corner; that is, every time it passes through a pier corner, all structures need to participate in it, which invisibly adds a lot of beats to the strapping. These beats will not only increase the length of the entire strapping process and reduce the strapping efficiency, but also increase the difficulty of manufacturing and operating the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a lateral bundling device and a bundling method for photovoltaic modules after stacking, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lateral bundling device for photovoltaic modules after stacking, including a conveying mechanism, a bundling mechanism and a tape reel cart arranged in sequence from left to right. The bundling mechanism includes a frame, on which a melting tape rotating structure and a tape threading structure that can lift along the frame are installed. The frame is provided with a first guiding member for lifting the melting tape rotating structure and the tape threading structure. An auxiliary tape receiving structure is provided on the left side of the frame;

[0006] The melting tape rotating structure includes a first rotating assembly that can move horizontally left and right and rotate. The first rotating assembly is connected with a tape pulling assembly and a melting tape assembly with a lifting function. The tape pulling assembly is used for the conveying of the tying tape and the auxiliary tensioning after the tying tape is closed. The melting tape assembly is used for tightening, melting and cutting;

[0007] The tape threading structure includes a second rotating assembly that can move horizontally back and forth and left and right. The second rotating assembly is connected with a tape threading assembly for threading the tying tape through the pallet legs of the stack. The tape threading assembly can pull the tying tape conveyed by the melting tape rotating structure, thread it through the pallet legs of the stack and send it back to the melting tape rotating structure.

[0008] Further optimization, the tape pulling assembly includes a first mounting frame, on which a first roller is installed. The first roller is connected with a fourth motor for driving its rotation. A second roller is arranged on one side of the first roller, and a third roller is arranged on the other side of the first roller relative to the second roller. The distances between the second roller and the first roller, and between the third roller and the first roller can both be adjusted. A first guiding channel for guiding the tying tape and arranged in an arc shape is provided between the second roller and the first roller. A second guiding channel for guiding the tying tape and arranged in an arc shape is provided between the third roller and the first roller. The far ends of the first guiding channel and the second guiding channel away from the first roller intersect and merge into a channel towards the melting tape assembly direction.

[0009] Further optimization, the second roller is connected with a second air cylinder for driving it to approach or move away from the first roller, and the third roller is connected with a third air cylinder for driving it to approach or move away from the first roller;

[0010] Preferably, a connecting rod structure is connected between the second roller and the second air cylinder, and between the third roller and the third air cylinder.

[0011] Further optimization, the melting belt assembly includes a second mounting bracket, on which a pressing wheel for driving the movement of the cable tie and a friction plate pressing block for melting the cable tie are mounted. The friction plate pressing block is arranged on the side close to the pulling belt assembly, and the pressing wheel is arranged on the side of the friction plate pressing block away from the pulling belt assembly. The pressing wheel is connected to a fifth motor for driving its rotation, and the friction plate pressing block is connected to a sixth motor for driving its movement. The sixth motor is a high-frequency motor. A cutting knife for cutting the cable tie is arranged on the side of the friction plate pressing block close to the pulling belt assembly.

[0012] Further optimization, the second mounting bracket is connected to a fourth cylinder for driving its movement. Both the pressing wheel and the friction plate pressing block are connected to a matching rack. The rack is fixed on the second mounting bracket. The pressing wheel is connected to a fifth cylinder for driving it to approach or move away from the corresponding rack. A pressing rod is arranged on the side of the friction plate pressing block away from the corresponding rack, and the pressing rod is connected to a sixth cylinder for driving it to approach or move away from the friction plate pressing block.

[0013] Preferably, a connecting rod structure is connected between the pressing wheel and the fifth cylinder, and between the pressing rod and the sixth cylinder.

[0014] Further optimization, the first rotating assembly includes a third motor, and the third motor is connected to a first rotating plate for mounting the pulling belt assembly and the melting belt assembly; the second rotating assembly includes a tenth motor, and the tenth motor is connected to a second rotating plate for mounting the tape threading assembly.

[0015] Further optimization, the tape threading assembly includes a first tape threading assembly and a second tape threading assembly which are identical in structure and arranged oppositely. Both the first tape threading assembly and the second tape threading assembly include a tape threading arm for threading the tape and a seventh cylinder for driving the tape threading arm to move along the surface of the second rotating plate. The tape threading arm is in a U shape, one side of which is slidably arranged on the second rotating plate, and the end of the other side is connected to an eighth cylinder. The eighth cylinder is connected to a clamping plate. The opening surfaces of the two tape threading arms of the first tape threading assembly and the second tape threading assembly are arranged oppositely.

[0016] Further optimization, the melting belt rotating structure includes a first cross beam horizontally arranged on the frame. A first lifting assembly for driving its lifting and a first translation assembly for driving the first rotating assembly to move left and right are arranged on the first cross beam. A pulley is arranged on the first cross beam.

[0017] The tape threading structure includes a second cross beam horizontally arranged on the frame, and a second lifting component for driving its lifting, a second translation component for driving the second rotating component to move forward and backward, and a third translation component for driving the second rotating component to move left and right are arranged on the second cross beam.

[0018] Further optimized, the auxiliary tape connecting structure includes a third mounting frame, a bracket is arranged on the third mounting frame, a first tape connecting guide plate that can slide back and forth is arranged on the bracket, the first tape connecting guide plate is connected with a ninth air cylinder for driving its sliding, at least one baffle for blocking the tape is arranged above the first tape connecting guide plate, the baffle is connected with a tenth air cylinder for driving its left and right movement, a second tape connecting guide plate that cooperates with the first tape connecting guide plate is arranged at the rear side of the first tape connecting guide plate, and at least one eleventh air cylinder for driving its lifting is connected below the second tape connecting guide plate.

[0019] Based on the same inventive concept, the present application also discloses a method for laterally bundling photovoltaic modules after stacking, which is applied to the laterally bundling device for photovoltaic modules after stacking described in any one of the above, and includes the following steps:

[0020] Step 1: The conveying mechanism conveys the stacked photovoltaic modules to the bundling position close to the bundling mechanism, threads the tie strap on the tie strap cart between the first roller and the second roller of the pulling tape component, and then the second air cylinder drives the second roller to approach the first roller to clamp the tie strap between the first roller and the second roller.

[0021] Step 2: The fourth motor drives the first roller to rotate, conveys the tie strap along the first guiding channel and into the first tape connecting guide plate of the auxiliary tape connecting structure, and the first tape threading component of the tape threading component descends and clamps the position close to the end of the tie strap located above the second tape connecting guide plate.

[0022] Step 3: The first tape threading component moves to a leg part at the rear side close to the bundling mechanism of the pallet tray located below the stacked photovoltaic modules under the combined cooperation of the second lifting component, the second translation component and the third translation component. The first tape threading component threads the tie strap into the inner side of the leg from the front side, and then the second tape threading component catches the position close to the end of the tie strap of the first tape threading component to complete the tape threading of one leg of the pallet tray.

[0023] Step 4. The combined cooperation of the second lifting assembly, the second translation assembly, and the third translation assembly moves the tape threading assembly to a leg position in front of and near the strapping mechanism of the pallet tray located above the stacked photovoltaic modules. During the upward movement of the tape threading assembly, the second rotating assembly drives the tape threading assembly to rotate 180°, swapping the positions of the first tape threading assembly and the second tape threading assembly. Then, the first tape threading assembly clamps the strapping tape held by the second tape threading assembly. Next, the first tape threading assembly passes the end of the strapping tape it holds through the inside of this leg from the rear side. Then, the second tape threading assembly catches the strapping tape passed through by the first tape threading assembly, completing the threading of the second leg on the pallet pusher;

[0024] Step 5. The combined cooperation of the second lifting assembly, the second translation assembly, and the third translation assembly moves the tape threading assembly to the front side of the tape melting and rotating structure. The tape threading assembly inserts the end of the held strapping tape between the first roller and the third roller of the tape pulling assembly. The third cylinder drives the third roller to approach the first roller, clamping the strapping tape between the first roller and the third roller. At this time, the second roller moves away from the first roller. Then, the fourth motor drives the first roller to rotate, conveying the strapping tape along the second guiding channel and starting to overlap with the strapping tape located in the first guiding channel for a certain length;

[0025] Step 6. The fourth cylinder drives the entire tape melting assembly to rise, clamping the overlapping part of the strapping tape between the pressing wheel and the corresponding toothed plate, and between the friction plate pressing block and the corresponding toothed plate. Then, the pressing wheel presses the strapping tape tightly. The fifth motor drives the pressing wheel to rotate, reversely conveying the strapping tape connected in the first guiding channel to tighten it. Then, the pressing rod presses the friction plate pressing block against the overlapped and tightened strapping tape. The sixth motor drives the friction plate pressing block to move, fusing the two layers of strapping tape overlapping at this position together. At the same time, the cutter cuts the strapping tape connected in the first guiding channel at the side of the friction plate pressing block, completing the strapping of two legs at a diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic modules;

[0026] Step 7. Repeat the above steps 2 to 6 to perform strapping of the two legs at the other diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic modules, finally completing the lateral strapping of one side after the photovoltaic modules are stacked. Then, the photovoltaic modules and the pallet trays are conveyed out by the conveying mechanism, and the photovoltaic modules and the pallet trays are rotated by 180 degrees and continue to be sent to the left side of the strapping mechanism for continued strapping.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] 1. The lateral bundling device for photovoltaic modules after stacking according to the present invention can pass the strap through the back side of the pallet legs of the stacker through the strap threading structure, and is designed with a humanoid structure to achieve flexible strap threading in a limited space, with high efficiency, safety and reliability;

[0029] 2. Through the setting of the strap melting and rotating structure, it is convenient for the closed-loop belt taking-in, tightening, melting and cutting of the strap. The structure is compact, and the belt taking-in and melting of the strap can be completed in a limited space, and the strap is firmly bundled with high bundling quality;

[0030] 3. Through the coordinated setting of the strap threading structure and the strap melting and rotating structure, from the start of strap threading to closing, humanoid bundling is adopted, with high bundling efficiency and good quality. There is no need for a relay device to connect the strap in the middle, nor for multiple strap threading grooves to overlap. The structure is more simplified, the process beat is less, the strap threading is easier, the efficiency is higher, and the operation is easier;

[0031] 4. Through the setting of the auxiliary strap connecting structure, it can ensure the precise clamping of the strap by the strap threading structure and ensure smoother subsequent strap threading;

[0032] 5. The structure of the lateral bundling device is ingenious, simple, occupies little space, has high integration and high humanoid degree, and can achieve precise, safe and efficient bundling of the strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is an isometric structural view of the lateral bundling device for photovoltaic modules after stacking disclosed in the embodiment of the present invention;

[0034] Figure 2 is a front view structural view of the lateral bundling device for photovoltaic modules after stacking disclosed in the embodiment of the present invention;

[0035] Figure 3 is a structural view of the bundling mechanism disclosed in the embodiment of the present invention;

[0036] Figure 4 is a structural view of the strap melting and rotating structure disclosed in the embodiment of the present invention;

[0037] Figure 5 is a structural view of the strap pulling assembly disclosed in the embodiment of the present invention;

[0038] Figure 6 is a structural view of the strap melting assembly disclosed in the embodiment of the present invention;

[0039] Figure 7 is a structural view of the strap threading structure disclosed in the embodiment of the present invention;

[0040] [[ID=4s]] Figure 8Schematic diagram of the cooperation structure between the second rotating assembly and the tape threading assembly disclosed in the embodiments of the present invention;

[0041] Figure 9 Schematic diagram of the structure of the auxiliary tape connecting structure disclosed in the embodiments of the present invention;

[0042] Figure 10 Schematic diagram of the state structure of laterally bundling stacked photovoltaic modules disclosed in the embodiments of the present invention.

[0043] Reference numerals: 1 - conveying mechanism, 11 - roller conveyor line, 12 - calibration assembly, 121 - first cylinder, 122 - push plate, 13 - edge guard, 2 - bundling mechanism, 21 - frame, 22 - first guiding member, 23 - tape melting and rotating structure, 231 - first cross beam, 232 - first lifting assembly, 2321 - first motor, 2322 - first driving shaft, 2323 - first gear, 233 - first translation assembly, 2331 - second motor, 2332 - second guiding member, 2333 - first translation plate, 234 - first rotating assembly, 2341 - third motor, 2342 - first rotating plate, 235 - belt pulley, 236 - tape pulling assembly, 2361 - first mounting bracket, 2362 - first roller, 2363 - fourth motor, 2364 - second roller, 2365 - third roller, 2366 - second cylinder, 2367 - third cylinder, 2368 - first guiding channel, 2369 - second guiding channel, 237 - tape melting assembly, 2371 - fourth cylinder, 2372 - second mounting bracket, 23721 - toothed plate, 2373 - fifth cylinder, 2374 - pressing wheel, 2375 - fifth motor, 2376 - sixth cylinder, 2377 - pressing rod, 2378 - friction plate pressing block, 23781 - cutting knife, 2379 - sixth motor, 24 - tape threading structure, 241 - second cross beam, 242 - second lifting assembly, 2421 - seventh motor, 2422 - second driving shaft, 2423 - second gear, 243 - second translation assembly, 2431 - eighth motor, 2432 - belt, 244 - third translation assembly, 2441 - second translation plate, 2442 - ninth motor, 2443 - third translation plate, 2444 - third guiding member, 245 - second rotating assembly, 2451 - tenth motor, 2452 - second rotating plate, 246 - tape threading assembly, 246a - first tape threading assembly, 246b - second tape threading assembly, 2461 - tape threading arm, 2462 - seventh cylinder, 2463 - eighth cylinder, 2464 - tape clamping plate, 25 - auxiliary tape connecting structure, 251 - third mounting bracket, 252 - bracket, 253 - first tape connecting guide plate, 254 - ninth cylinder, 255 - tenth cylinder, 256 - baffle, 257 - eleventh cylinder, 258 - second tape connecting guide plate, 3 - reel cart. Detailed implementation manners

[0044] To make the objectives, technical solutions, and advantages of this application clearer and more understandable, the following further elaborates on this application in detail with reference to specific embodiments and the accompanying drawings.

[0045] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should have the ordinary meanings understood by those with ordinary skills in the field to which this application belongs. The terms "first", "second", and similar terms used in the embodiments of this application do not denote any order, quantity, or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0046] Please refer to Figures 1 - 4 、 Figure 7 and Figure 10 As shown, a lateral bundling device for photovoltaic modules after stacking includes a conveying mechanism 1, a bundling mechanism 2, and a tape reel carriage 3 arranged in sequence from left to right. The bundling mechanism 2 includes a frame 21. A tape melting and rotating structure 23 and a tape threading structure 24 that can be lifted along the frame 21 are installed on the frame 21. The frame 21 is provided with a first guiding member 22 for lifting the tape melting and rotating structure 23 and the tape threading structure 24. An auxiliary tape receiving structure 25 is provided on the left side of the frame 21;

[0047] The tape melting and rotating structure 23 includes a first rotating assembly 234 that can move horizontally left and right and rotate. The first rotating assembly 234 is connected to a tape pulling assembly 236 and a tape melting assembly 237 with a lifting function. The tape pulling assembly 236 is used for the conveying of the tying tape and the auxiliary tensioning after the tying tape is closed. The tape melting assembly 237 is used for the tightening, melting, and cutting of the tying tape;

[0048] The tape threading structure 24 includes a second rotating assembly 245 that can move horizontally forward and backward and left and right. The second rotating assembly 245 is connected to a tape threading assembly 246 for threading the tying tape through the legs of the pallet. The tape threading assembly 246 can pull the tying tape conveyed by the tape melting and rotating structure 23, thread it through the legs of the pallet, and send it back to the tape melting and rotating structure 23.

[0049] In this application, the lateral strapping device is used for strapping the stacked photovoltaic modules. By passing the strapping tape through the four legs at two diagonals on each side of the pallet trays on the upper and lower sides of the photovoltaic modules, the lateral strapping of the photovoltaic modules is achieved. Specifically, the stacked photovoltaic modules can be conveyed to the strapping position through the conveying mechanism 1, the strapping tape can be strapped to the legs of the pallet tray through the strapping mechanism 2, and the continuous supply of the strapping tape is realized through the tape storage function of the tape reel cart 3, ensuring that the lateral strapping device can operate continuously.

[0050] In this application, the strapping mechanism 2 includes a frame 21, a tape melting and rotating structure 23, and a tape threading structure 24. Both the tape melting and rotating structure 23 and the tape threading structure 24 can lift along the first guide 22 of the frame 21, facilitating the tape threading of the tape threading structure 24 through the legs of the upper and lower pallet trays of the photovoltaic modules, and avoiding interference between the tape melting and rotating structure 23 and the tape threading structure 24 and facilitating the docking between the tape melting and rotating structure 23 and the tape threading structure 24, realizing the transfer of the strapping tape between the tape melting and rotating structure 23 and the tape threading structure 24 to form a closed-loop structure. Specifically, the tape threading structure 24 can catch the strapping tape conveyed from the tape melting and rotating structure 23, then pass through the four legs at two diagonals on one side of the pallet trays on the upper and lower sides of the photovoltaic modules, and a closed-loop structure is formed by the two legs at each diagonal. The closed-loop strapping tape is tightened and welded together by the tape melting and rotating structure 23 to complete the strapping of the two legs. The auxiliary tape catching structure 25 is used to assist the tape threading structure 24 in clamping the strapping tape conveyed by the tape melting and rotating structure 23, ensuring that the tape threading structure 24 can accurately clamp the position near the end of the strapping tape and clamp firmly, and ensuring that the strapping tape will not fall off during the tape threading process.

[0051] In this application, the tape melting and rotating structure 23 includes a first rotating assembly 234, a tape pulling assembly 236, and a tape melting assembly 237. The first rotating assembly 234 drives the tape pulling assembly 236 and the tape melting assembly 237 to rotate, facilitating the horizontal conveyance of the strapping tape to be caught by the auxiliary tape catching structure 23 and subsequent clamping by the tape threading structure 24, facilitating the direction of the strapping tape inside during tape collection and melting to be consistent with the strapping direction of the strapping tape on the side of the photovoltaic module, ensuring that the strapping tape can be tightened and ensuring that the tightness of the strapped strapping tape after melting meets the requirements. The first rotating assembly 234 can move horizontally left and right, that is, drive the connected tape pulling assembly 236 and tape melting assembly 237 to move horizontally, avoiding the running route of the tape threading structure 24, preventing interference, improving operation safety, increasing the strapping speed, and adapting to the strapping of photovoltaic modules with different widths. The tape pulling assembly 236 is used for the conveyance of the strapping tape and the auxiliary tightening after the strapping tape is closed, and can fix the strapping tape to facilitate the auxiliary tightening of the strapping tape. The tape melting assembly 237 has a lifting function, facilitating the avoidance when the strapping tape enters the position of the auxiliary tape catching structure 25 from the tape pulling assembly 236. The tape melting assembly 237 can tighten, melt-connect, and cut the closed-loop strapping tape to complete the strapping of the strapping tape.

[0052] In the present application, the tape threading structure 24 includes a second rotating assembly 245 and a tape threading assembly 246. The second rotating assembly 245 can drive the tape threading assembly 246 to rotate, facilitating the horizontal tape threading and diagonal tape pulling of the tape threading assembly 246, realizing humanoid operation, with high speed, high efficiency, and being safe and reliable. The tape threading assembly 246 can move horizontally forward and backward and left and right, facilitating the forward and backward, left and right movement, and cooperating with the lifting movement of the tape threading structure 224, and rotating through the second rotating assembly 245, realizing the arbitrary movement of the tape threading assembly 246 within a specific range, facilitating the realization of actions such as tape clamping, tape threading, and tape pulling. Through the tape threading assembly 246, the tie tape conveyed by the tape melting rotating structure 23 can be pulled, and the tape is pulled and threaded along the diagonal of the pallet trays above and below the photovoltaic module, and after threading, the end of the tie tape is sent back to the tape melting rotating structure 23 to overlap the tie tapes, facilitating the tape melting of the subsequent tape melting assembly 237.

[0053] Please refer to Figure 5 As shown, in an embodiment of the tape pulling assembly 236 in the present application, the tape pulling assembly 236 includes a first mounting frame 2361. A first roller 2362 is mounted on the first mounting frame 2361. The first roller 2362 is connected to a fourth motor 2363 for driving its rotation. A second roller 2364 is provided on one side of the first roller 2362, and a third roller 2365 is provided on the other side of the first roller 2362 opposite to the second roller 2364. The distances between the second roller 2364 and the first roller 2362, and between the third roller 2365 and the first roller 2362 are both adjustable. A first guiding channel 2368 for guiding the tie tape and arranged in an arc shape is provided between the second roller 2364 and the first roller 2362. A second guiding channel 2369 for guiding the tie tape and arranged in an arc shape is provided between the third roller 2365 and the first roller 2362. The ends of the first guiding channel 2368 and the second guiding channel 2369 far from the first roller 2362 intersect and merge into a single channel towards the tape melting assembly 237.

[0054] In this embodiment, the first roller 2362, the second roller 2364, and the third roller 2365 are used to realize the delivery of the cable tie. A material with a high coefficient of friction and wear resistance can be selected as the rolling surface of the roller, or anti-slip strips, teeth, or coatings can be added to the surface of the roller by rotation to make the surface of the roller uneven, thereby increasing the friction force and realizing the delivery of the cable tie. The first roller 2362 is connected to a fourth motor 2363, and the first roller 2362 is driven to rotate by the fourth motor 2363 to realize the delivery of the cable tie. Specifically, the distances between the second roller 2364 and the first roller 2362, and between the third roller 2365 and the first roller 2362 are both adjustable. When the second roller 2364 approaches the first roller 2362, the cable tie located between the second roller 2364 and the first roller 2362 can be clamped, and then under the condition that the fourth motor 2363 drives the first roller 2362 to rotate, the cable tie is driven to be conveyed backward along the first guiding channel 2368 to realize the cable tie feeding function; when the second roller 2364 moves away from the first roller 2362 and the third roller 2365 approaches the first roller 2362, the second roller 2364 will not press the cable tie tightly, while the third roller 2365 will clamp the end of the cable tie that has been threaded through the threading structure 24 and sent between the third roller 2365 and the first roller 2362, and then through the rotation of the first roller 2362, the cable tie is conveyed along the second guiding channel 2369 to make the cable tie overlap; when both the second roller 2364 and the third roller 2365 approach the first roller 2362, with the clockwise rotation of the first roller 2362, the cable tie in the second guiding channel 2369 will be conveyed backward, and the cable tie in the first guiding channel 2368 will be conveyed in the reverse direction, which can tighten the cable tie one step in advance, facilitating the tightening and fusing of the subsequent fusing component 237 and playing an auxiliary tightening effect.

[0055] In this embodiment, the first guiding channel 2368 and the second guiding channel 2369 adopt an arc structure, which is convenient for the cable tie to turn and transition when being conveyed to the auxiliary tape receiving structure 25. It not only plays a guiding role but also can avoid the resistance and wear caused by the sudden turning of the cable tie, ensuring the smooth conveyance of the cable tie.

[0056] Furthermore, the second roller 2364 is connected to a second air cylinder 2366 for driving it to approach or move away from the first roller 2362, and the third roller 2365 is connected to a third air cylinder 2367 for driving it to approach or move away from the first roller 2362; that is, the second roller 2364 can be pushed to move by the second air cylinder 2366 to realize the approach or separation of the second roller 2364 from the first roller 2362, and the third roller 2365 can be pushed to approach or move away from the first roller 2362 by the third air cylinder 2367, achieving the purpose of clamping and conveying the cable tie.

[0057] Preferably, a connecting rod structure is connected between the second roller 2364 and the second cylinder 2366, and between the third roller 2365 and the third cylinder 2367. That is, through the connecting rod structure, the spatial layout is optimized, the structural volume of the strap pulling assembly 236 is reduced, and at the same time, the interference caused by the linear motion of the cylinder can be avoided, and it also has the effect of protecting the cylinder.

[0058] Please refer to Figure 6 As shown, in an embodiment of the present application regarding the tape melting assembly 237, the tape melting assembly 237 includes a second mounting bracket 2372. A pressing wheel 2374 for driving the movement of the tie strap and a friction plate pressing block 2378 for melting the tie strap are mounted on the second mounting bracket 2372. The friction plate pressing block 2378 is arranged on the side close to the strap pulling assembly 236, and the pressing wheel 2374 is arranged on the side of the friction plate pressing block 2378 away from the strap pulling assembly 236. The pressing wheel 2374 is connected to a fifth motor 2375 for driving its rotation, and the friction plate pressing block 2378 is connected to a sixth motor 2379 for driving its movement. The sixth motor 2379 is a high-frequency motor. A cutting knife 23781 for cutting the tie strap is provided on the side of the friction plate pressing block 2378 close to the strap pulling assembly 236.

[0059] In this embodiment, the second mounting bracket 2372 is used for the installation of various components. It has a U-shaped structure, which is not only convenient for installation but also has the effect of protecting various components. The friction plate pressing block 2378 is used for frictionally melting the overlapping tie straps. Through friction heat generation, the tie straps can be thermally fused and connected, so that two layers of tie straps are fused together to complete the closed-loop connection of the tie straps. The pressing wheel 2374 is used to press the tie strap and reverse the conveying of the layer of tie strap connected to the tie strap in the first guiding channel 2368, so as to tighten the tie strap and ensure that the tightness of the bundled tie strap meets the requirements and the bundling is firm. Specifically, the fifth motor 2375 can drive the pressing wheel 2374 to rotate, and pull the tie strap on the side close to the pressing wheel 2374 (i.e., the part connected to the tie strap in the first guiding channel 2368) in the direction of the first guiding channel 2368, so as to tighten the tie strap. The sixth motor 2379 is a high-frequency motor, which can drive the friction plate pressing block 2378 to move relative to the tie strap at a high frequency, generate frictional heat, and finally achieve the purpose of melting the tape. The cutting knife 23781 can move synchronously while the friction plate pressing block 2378 moves, and cut the tie strap connected to the tie strap in the first guiding channel 2368.

[0060] In this embodiment, the surface of the pressing wheel 2374 is a rolling surface with a high coefficient of friction, or it can also be a rolling surface with anti-slip strips, teeth or coatings to make the surface uneven, so as to improve the friction force and realize the conveying and tightening of the tie strap. Preferably, a tooth surface is used as the rolling surface of the pressing wheel 2374.

[0061] In this embodiment, the connection between the friction plate pressing block 2378 and the high-frequency motor 2379 is a cam structure. Through the cam structure, the high-speed rotation of the high-frequency motor 2379 can be converted into a reciprocating rapid movement in the horizontal direction, so as to achieve the purpose of frictionally tying the strap.

[0062] Furthermore, the second mounting bracket 2372 is connected with a fourth cylinder 2371 for driving its movement. Both the pressure wheel 2374 and the friction plate pressing block 2378 are connected with a mating rack 23721. The rack 23721 is fixed on the second mounting bracket 2372. The pressure wheel 2374 is connected with a fifth cylinder 2373 for driving it to approach or move away from the corresponding rack 23721. On the side of the friction plate pressing block 2378 away from the corresponding rack 23721, there is a pressure rod 2377, and the pressure rod 2377 is connected with a sixth cylinder 2376 for driving it to approach or move away from the friction plate pressing block 2378.

[0063] Among them, the fourth cylinder 2371 is used to drive the second mounting bracket 2372 to move, so that the second mounting bracket 2372 and the entire tape melting assembly 237 can displace relative to the tape pulling assembly 236, facilitating the tape on the first guiding channel 2368 of the tape pulling assembly 236 to be conveyed into the guiding groove of the first tape receiving guide plate 253 of the auxiliary tape receiving assembly 25. The rack 23721 is used to cooperate with the pressure wheel 2374 and the friction plate pressing block 2378 to increase the friction force with the tape, and can prevent the tape connected to the tape in the second guiding channel 2369 from moving in the reverse direction during tape winding, realizing the relative reverse movement of the end of the tape winding, so as to achieve the purpose of tightening the tape. At the same time, it can prevent the tape away from the friction plate pressing block 2378 from moving when the friction plate pressing block 2378 generates heat by friction to melt the tape, ensuring the quality of tape melting. The pressure wheel 2374 is connected with a fifth cylinder 2373. Through the piston telescopic movement of the fifth cylinder 2373, the pressure wheel 2374 can be driven to move relative to the corresponding rack 23721, realizing the pressing of the tape between the pressure wheel 2374 and the corresponding rack 23721. The pressure rod 2377 is connected with a sixth cylinder 2376. Through the piston rod telescopic movement of the sixth cylinder 2376, the pressure rod 2377 can be driven to approach or move away from the friction plate pressing block 2378, and the friction plate pressing block 2378 can be driven to move relative to the corresponding rack 23721, realizing the pressing of the tape between the friction plate pressing block 2378 and the corresponding rack 23721, and at the same time facilitating the friction plate pressing block 2378 to melt the tape by friction.

[0064] In the above solution, a spring is sleeved on the pressure rod 2377 for the elastic pressing of the pressure rod 2377 on the friction plate pressing block 2378, ensuring that the friction plate pressing block 2378 can move when being pressed by the pressure rod 2377, ensuring that the friction plate pressing block 2378 can always be pressed against the tape when the sixth motor 2379 drives the friction plate pressing block 2378 to perform frictional movement, and ensuring the smooth melting of the tape.

[0065] Preferably, a connecting rod structure is connected between the pressing wheel 2374 and the fifth cylinder 2373, and between the pressing rod 2377 and the sixth cylinder 2376. Through the connecting rod structure, the spatial layout is optimized, the structural volume of the tape melting assembly 237 is reduced, and at the same time, vibration and impact can be absorbed, playing a role in protecting the cylinder.

[0066] Please refer to Figure 4 and Figure 7 As shown, in an embodiment of the present application, the first rotating assembly 234 includes a third motor 2341, and the third motor 2341 is connected to a first rotating plate 2342. The first rotating plate 2342 is used for installing the tape pulling assembly 236 and the tape melting assembly 237; the second rotating assembly 245 includes a tenth motor 2451, and the tenth motor 2451 is connected to a second rotating plate 2452. The second rotating plate 2452 is used for installing the tape threading assembly 246.

[0067] In this embodiment, the first rotating assembly 234 is used to drive the tape pulling assembly 236 and the tape melting assembly 237 to rotate. When the closed loop is formed after the tape is threaded, the relative directions of the tape pulling assembly 236 and the tape melting assembly 237 can be consistent with the bundling direction of the tape, facilitating the tightening and melting of the tape, and ensuring the tightness of the tape bundling. By driving the first rotating plate 2342 to rotate through the third motor 2341, the tape pulling assembly 236 and the tape melting assembly 237 can be driven to rotate synchronously. The second rotating assembly 245 is used to drive the tape threading assembly 246 to rotate, facilitating the tape threading of the legs of the pallet by the tape threading assembly 246 and the tape pulling after the threading. By driving the second rotating plate 2452 to rotate through the tenth motor 2451, the tape threading assembly 246 can be driven to rotate synchronously.

[0068] Please refer to Figure 8 As shown, in this embodiment, further, the tape threading assembly 246 includes a first tape threading assembly 246a and a second tape threading assembly 246b which are identical in structure and arranged oppositely. Both the first tape threading assembly 246a and the second tape threading assembly 246b include a tape threading arm 2461 for tape threading and a seventh cylinder 2462 for driving the tape threading arm 2461 to move along the surface of the second rotating plate 2452. The tape threading arm 2461 is in a C shape, one side of which is slidably arranged on the second rotating plate 2452, and the end of the other side is connected to an eighth cylinder 2463. The eighth cylinder 2463 is connected to a clamping plate 2464. The opening surfaces of the two tape threading arms 2461 of the first tape threading assembly 246a and the second tape threading assembly 246b are arranged oppositely.

[0069] In this solution, the strap threading assembly 246 is divided into a first strap threading assembly 246a and a second strap threading assembly 246b. The strap threading of the cable tie can be realized through the first strap threading assembly 246a and the second strap threading assembly 246b, that is, by clamping the end of the cable tie with the first strap threading assembly 246a or the second strap threading assembly 246b, then pulling the cable tie through the inside of the pallet tray leg, and then catching the end of the cable tie that has passed through the pallet tray leg with the second strap threading assembly 246b or the first strap threading assembly 246a. Then, the first strap threading assembly 246a or the second strap threading assembly 246b can withdraw from the inside of the pallet tray leg, which facilitates the subsequent movement of the strap threading assembly 246 pulling the cable tie and threading another pallet tray leg.

[0070] Specifically, both the first strap threading assembly 246a and the second strap threading assembly 246b include a strap threading arm 2461, a seventh cylinder 2462, an eighth cylinder 2463, and a clamping plate 2464. The seventh cylinder 2462 can drive the strap threading arm 2461 to move horizontally along the second rotating plate 2452, that is, when one strap threading arm 2461 passes through the inside of the pallet tray leg, the other strap threading arm 2461 can approach the strap threading arm 2461 passing through the inside of the pallet tray leg under the action of the corresponding seventh cylinder 2462, so as to receive the cable tie, realize the anthropomorphic strap threading action, and realize the operation in a narrow space with higher operation reliability and safety. The U-shaped strap threading arm 2461 is convenient for penetrating into the inside of the pallet tray leg. The eighth cylinder 2463 is used to drive the clamping plate 2464 to move, and the clamping of the cable tie is realized through the clamping plate 2464.

[0071] Preferably, a connecting rod structure is connected between the eighth cylinder 2463 and the clamping plate 2464, which can not only prevent the interference between the cylinder and the space of the pallet tray leg, but also facilitate the effective clamping of the cable tie when it is erected in the width direction of the cable tie, avoiding the interference between the clamping jaw cylinder and the space of the pallet tray leg or the difficulty in effectively clamping the cable tie when it is erected in the width direction.

[0072] Please refer to Figure 4 and Figure 7 As shown in the figures, in an embodiment of the present application, the melting belt rotating structure 23 includes a first cross beam 231 horizontally arranged on the frame 21. A first lifting assembly 232 for driving its lifting and a first translation assembly 233 for driving the left and right movement of the first rotating assembly 234 are provided on the first cross beam 231, and a belt pulley 235 is provided on the first cross beam 231;

[0073] The strap threading structure 24 includes a second cross beam 241 horizontally arranged on the frame 21. A second lifting assembly 242 for driving its lifting, a second translation assembly 243 for driving the front and back movement of the second rotating assembly 245, and a third translation assembly 244 for driving the left and right movement are provided on the second cross beam 241.

[0074] In this embodiment, both the melting belt rotating structure 23 and the belt threading structure 24 are connected to and lifted by the cross beam with the frame 21. Specifically, the installation of each structural component on the melting belt rotating structure 23 is realized through the first cross beam 231, and the first cross beam 231 is driven to lift by the first lifting component 232, thereby realizing the lifting movement of the belt pulling component 236 and the melting belt component 237; the first translation component 233 is used to drive the first rotating component 234 to move back and forth, so as to make the belt pulling component 236 and the melting belt component 237 approach or move away from the conveying mechanism 1, which is convenient for the closed-loop tightening, melting and cutting of the tie straps; the belt pulley 235 is used to guide and limit the pulling of the tie straps from the direction of the belt reel cart 3, preventing the tie straps from being disordered and affecting the bundling operation of the tie straps. The installation of each structural component on the belt threading structure 24 is realized through the second cross beam 241, and the second cross beam 241 is driven to lift by the second lifting component 242, thereby realizing the lifting of the belt threading component 246, which is convenient for bundling tie straps between the upper and lower pallet trays of the stacked photovoltaic modules; the second translation component 245 is used to drive the second rotating component 245 and the belt threading component 246 to move back and forth, facilitating the belt threading component 246 to thread the tie straps through the front and rear legs of the pallet tray; the third translation component 244 can drive the second rotating component 245 and the belt threading component 246 to move left and right, facilitating the threading arm 2461 of the belt threading component 246 to be inserted into the inner side of the pallet tray leg, thereby realizing belt threading.

[0075] Preferably, in this embodiment, the first lifting component 232 includes a first motor 2321 fixed on the first cross beam 231, the first motor 2321 is connected with a first driving shaft 2322, and a first gear 2323 is respectively arranged at both ends of the first driving shaft 2322; the first translation component 233 includes a second motor 2331, the second motor 2331 is connected with a first translation plate 2333 for installing the first rotating component 234, and a second guiding member 2332 is connected between the second motor 2331 and the first translation plate 2333; the first motor 2321 can drive the first driving shaft 2322 to rotate, driving the first gears 2323 at both ends to rotate synchronously, and the first gears 2323 can rise or fall along the first guiding member 22. Here, the first guiding member 22 includes a rack meshed and connected with the first gear 2323, and a linear guide rail for guiding the lifting of the first cross beam 231, ensuring the accurate and smooth lifting of the first cross beam 231. The second motor 2331 can drive the first translation plate 2333 to move left and right. Here, the second motor 2331 drives the first translation plate 2333 to move through the second guiding member 2332. The second guiding member 2332 preferably adopts a rack and linear guide rail structure, and a gear meshed with the rack is arranged at the output shaft end of the second motor 2331. <000017 (should be

[0076] here, but keeping as in the original)The second lifting assembly 242 includes a seventh motor 2421 fixed to the second cross beam 241. The seventh motor 2421 is connected to a second drive shaft 2422. A second gear 2423 is provided at each end of the second drive shaft 2422. The second translation assembly 243 includes an eighth motor 2431 fixed to the second cross beam 241. The eighth motor 2431 is connected to a belt 2432 that is connected to the third translation assembly 244. The belt 2432 is arranged along the length direction of the second cross beam 241. The third translation assembly 244 includes a second translation plate 2441 that is slidably connected to the second cross beam 241. The second translation plate 2441 is connected to the belt 2432. A ninth motor 2442 is provided on the second translation plate 2441. The second translation plate 2441 is connected to a third translation plate 2443 that can slide left and right. A third guide 2444 is connected between the third translation plate 2443 and the ninth motor 2442. By the seventh motor 24321, the second drive shaft 2422 can be driven to rotate, driving the second gears 2423 at both ends to rotate, so that the second gears 2423 lift along the rack of the first guide 22. By the eighth motor 2431, the belt 2432 can be driven to drive, driving the second translation plate 2441 of the third translation assembly 244 to move back and forth, realizing driving the third translation assembly 244, the second rotation assembly 245, and the tape threading assembly 246 to move back and forth. By the ninth motor 2442, the third translation plate 2443 can be driven to move left and right relative to the second translation plate 2441, achieving driving the second rotation assembly 245 and the tape threading assembly 246 to move left and right. A third guide 2444 is provided between the second translation plate 2441 and the third translation plate 2441. The third guide 2444 includes a rack and a linear guide. A gear is provided at the output shaft end of the ninth motor 2442, which is meshed with the rack of the third guide 2444, achieving driving the third translation plate 2443 to move left and right.

[0077] In this embodiment, the first guide 22, the second guide 2332, and the third guide 2444 all include a rack and a linear guide, with a simple structure and easy to implement.

[0078] Please refer to Figure 9 As shown, in an embodiment of the auxiliary tape connecting structure 25 in the present application, the auxiliary tape connecting structure 25 includes a third mounting bracket 251. A bracket 252 is provided on the third mounting bracket 251. A first tape connecting guide plate 253 that can slide back and forth is provided on the bracket 252. The first tape connecting guide plate 253 is connected to a ninth cylinder 254 for driving its sliding. At least one baffle 256 for blocking the tape is provided above the first tape connecting guide plate 253. The baffle 256 is connected to a tenth cylinder 255 for driving its left and right movement. A second tape connecting guide plate 258 that cooperates with the first tape connecting guide plate 253 is provided at the rear of the first tape connecting guide plate 253. At least one eleventh cylinder 257 for driving its lifting is connected below the second tape connecting guide plate 258.

[0079] In this embodiment, the first tape guiding plate 253 and the second tape guiding plate 258 are used for guiding and supporting the tie straps, facilitating the clamping of the tie straps by the tape threading assembly 246 near the end position. Specifically, both the first tape guiding plate 253 and the second tape guiding plate 258 have guiding grooves. The first tape guiding plate 253 can be driven to move back and forth by the ninth cylinder 254. When the first tape guiding plate 253 moves forward, it can be docked with the joint ports of the first guiding channel 2368 and the second guiding channel 2369 of the tape pulling assembly 236 at the same height, guiding the tie straps into the guiding groove on the first tape guiding plate 253. As the tie straps continue to be conveyed, the ninth cylinder 254 drives the first tape guiding plate 253 to move backward and dock with the second tape guiding plate 258, facilitating the tie straps to enter the guiding groove of the second tape guiding plate 258. Then, the eleventh cylinder 257 drives the second tape guiding plate 258 to descend, causing the tie straps to be completely exposed from the guiding groove of the second tape guiding plate 258, facilitating the clamping of the tie straps by the tape threading assembly 246 near the end position. When the tape threading assembly 246 clamps the tie straps, the tenth cylinder 255 drives the baffle 256 away from the first tape guiding plate 253, facilitating the tape threading assembly 246 to move the tie straps away for tape threading.

[0080] Please refer to Figure 1 As shown, in an embodiment regarding the conveying mechanism 1, the conveying mechanism 1 includes a roller conveyor line 11. At least one calibration component 12 is provided on one side of the roller conveyor line 11, and a baffle 13 is provided on the other side of the roller conveyor line 11. Through the cooperation of the calibration component 12 and the baffle 13, the positioning of the photovoltaic modules and the pallet on the roller conveyor line 11 is achieved, ensuring that the photovoltaic modules and the pallet are at the set positions, facilitating the lateral bundling of the photovoltaic modules by the bundling mechanism 2.

[0081] Furthermore, the calibration component 12 includes a first cylinder 121 and a push plate 122. The first cylinder 121 can be used to push the push plate 122 to move back and forth, pushing the photovoltaic modules and the pallet located on the roller conveyor line 11, ensuring that the positions of the photovoltaic modules and the pallet at the bundling position are at the set positions, which can improve the bundling accuracy. And the front and rear positions of the baffle 13 are adjustable. It is connected to the edge of the roller conveyor line 11 through a rectangular waist and, in cooperation with the calibration component 12, can achieve the conveying of photovoltaic modules and pallets with different widths.

[0082] Please refer to Figures 1 - 10 As shown, based on the same inventive concept, another embodiment of the present application also discloses a method for lateral bundling of stacked photovoltaic modules, which is applied to the lateral bundling device for stacked photovoltaic modules in the above embodiment and includes the following steps:

[0083] Step 1: The conveying mechanism conveys the stacked photovoltaic modules to the bundling position near the bundling mechanism 2. Thread the tie strap on the tie strap reel 3 through between the first roller 2362 and the second roller 2364 of the strap pulling assembly 236. Then, the second cylinder 2366 drives the second roller 2364 to approach the first roller 2362, clamping the tie strap between the first roller 2362 and the second roller 2364;

[0084] Step 2: The fourth motor 2363 drives the first roller 2362 to rotate, conveying the tie strap along the first guiding channel 2368 and into the first tape receiving guide plate 258 of the auxiliary tape receiving structure 25. The first tape threading assembly 246a of the tape threading assembly 246 descends and clamps the tie strap near the end position above the second tape receiving guide plate 258;

[0085] Step 3: The first tape threading assembly 246a moves, under the combined cooperation of the second lifting assembly 242, the second translation assembly 243, and the third translation assembly 244, to a leg position at the rear of the side of the pallet tray near the bundling mechanism 2 below the stacked photovoltaic modules. The first tape threading assembly 246a threads the tie strap into the inner side of this leg from the front side. Then, the second tape threading assembly 246b catches the tie strap near the end position of the first tape threading assembly 246a, completing the tape threading of one leg of the pallet tray;

[0086] Step 4: The combined cooperation of the second lifting assembly 242, the second translation assembly 243, and the third translation assembly 244 moves the tape threading assembly 246 to a leg position at the front of the side of the pallet tray near the bundling mechanism 2 above the stacked photovoltaic modules. Then, the second rotating assembly 245 drives the tape threading assembly 246 to rotate 180°, swapping the positions of the first tape threading assembly 246a and the second tape threading assembly 246b. Then, the first tape threading assembly 246a clamps the tie strap held by the second tape threading assembly 246b. Next, the first tape threading assembly 246a threads the end of the tie strap it holds into the inner side of this leg from the rear side. Then, the second tape threading assembly 246b catches the tie strap passed through by the first tape threading assembly 246a, completing the tape threading of the second leg on the pallet tray;

[0087] Step 5: Through the collaborative operation of the second lifting assembly 242, the second translation assembly 243, and the third translation assembly 244, the tape threading assembly 246 is moved to the front side of the tape melting and rotating structure 23. The tape threading assembly 246 inserts the end of the cable tie it holds between the first roller 2362 and the third roller 2365 of the tape pulling assembly 236. The third cylinder 2367 drives the third roller 2365 to approach the first roller 2362, clamping the cable tie between the first roller 2362 and the third roller 2365. At this time, the second roller 2364 moves away from the first roller 2362. Then, the fourth motor 2363 drives the first roller 2362 to rotate, conveying the cable tie along the second guiding channel 2369 and starting to overlap with the cable tie located in the first guiding channel 2368 for a certain length.

[0088] Step 6: The fourth cylinder 2371 drives the tape melting assembly 237 to rise as a whole, clamping the overlapping part of the cable tie between the pressure wheel 2374 and the corresponding tooth plate 23721, and between the friction plate pressing block 2378 and the corresponding tooth plate 23721. Then, the pressure wheel 2374 presses the cable tie tightly. The fifth motor 2375 drives the pressure wheel 2374 to rotate, reversely conveying the cable tie connected in the first guiding channel 2368 for tightening. Then, the pressing rod presses the friction plate pressing block 2378 against the overlapped and tightened cable tie. The sixth motor 2379 drives the friction plate pressing block 2378 to move, fusing the two layers of cable tie overlapping at this position together. At the same time, the cutter 23781 cuts the cable tie connected in the first guiding channel 2368 at the side of the friction plate pressing block 2378, completing the bundling of two legs at one diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic module.

[0089] Step 7: Repeat the above steps 2 to 6 to perform cable tie bundling on the two legs at the other diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic module, finally completing the lateral bundling of one side after the photovoltaic modules are stacked. Then, the conveying mechanism 1 conveys the photovoltaic modules and the pallet trays out, turns the photovoltaic modules and the pallet trays around, and continues to send them to the left side of the bundling mechanism 2 for continued bundling.

[0090] In step 1, the cable tie on the spool carrier 3 can be manually threaded between the first roller 2362 and the second roller 2364, or a robotic arm can be used for lapping.

[0091] In step 2, the cable tie first enters the outlet ends of the first guiding channel 2368 and the second guiding channel 2369 under the action of the first roller 2362, and then enters the guiding groove of the first tape receiving guide plate 253. Then, the first tape receiving guide plate 253 moves backward to dock with the second tape receiving guide plate 258, and the cable tie enters the second tape receiving guide plate 258. Then, the eleventh cylinder 257 drives the second tape receiving guide plate 258 to descend, exposing the cable tie. Then, the first tape threading assembly 246a of the tape threading assembly 246 descends, approaches and clamps the cable tie near the end position. At this time, the first tape threading assembly 246a and the second tape threading assembly 246b are arranged front and back.

[0092] In step 3, when the first tape threading assembly 246a threads the cable tie into the inner side of the leg from the front side, it does not need to rotate, which can reduce the movement rhythm of the tape threading structure 24, ensure that the tape threading action is more reasonable, smooth and fast, and can reduce the program error rate. The tape threading arm 2461 of the first tape threading assembly 246a extends into the rear side of the pallet tray leg. Then, the seventh cylinder 2462 of the second tape threading assembly 246b drives the corresponding tape threading arm 2461 to dock with the tape threading arm 2461 of the first tape threading assembly 246a, and the eighth cylinder 2463 of the second tape threading assembly 246b drives the corresponding tape clamping plate 2464 to clamp the cable tie clamped by the first tape threading assembly 246a.

[0093] In step 4, since the cable tie exits from the lower pallet tray leg at the rear side of the leg, the corresponding second tape threading assembly 246b is at the rear side, and the end of the cable tie points backward. Therefore, when threading the upper pallet tray leg, it is necessary to drive the tape threading assembly 246 to rotate 180° through the second rotating assembly 245, swap the positions of the first tape threading assembly 246a and the second tape threading assembly 246b, and adjust the end of the cable tie forward. Then, the first tape threading assembly 246a clamps the cable tie, which is convenient for threading the cable tie into the rear side of the pallet tray leg at this position and exiting from the front side, and then the second tape threading assembly 246b clamps the exited cable tie.

[0094] In step 5, in step 4, when the second tape threading assembly 246b clamps the cable tie, the end of the cable tie points forward. However, when the tape threading assembly 246 inserts the end of the clamped cable tie between the first roller 2362 and the third roller 2365 of the tape pulling assembly 236, it is necessary to adjust the direction of the end of the cable tie back to the rear. Therefore, before threading the cable tie between the first roller 2462 and the third roller 2465, it is still necessary to rotate the tape threading assembly 246 by 180° to swap the direction of the end of the cable tie, and then the end of the cable tie can be inserted between the first roller 2462 and the third roller 2465.

[0095] In step 6, the melting belt assembly 237 needs to rise as a whole so that the height of the melting belt assembly 237 is the same as that of the pulling belt assembly 236, which facilitates clamping the overlapping tie straps between the pressing wheel 2374 and the corresponding toothed plate 23721, and between the friction plate pressing block 2378 and the corresponding toothed plate 23721. The maximum distance that the cutter 23781 moves can only cut one layer of the overlapping double-layer tie straps that is close to the cutter 23781. And in this step, it is preferably to adjust the relative direction of the pulling belt assembly 236 and the melting belt assembly 237 to be consistent with the tie strap bundling direction, which can ensure that the tie straps are bundled firmly and do not loosen, and ensure the tightness of the tie straps.

[0096] In step 7, the same lateral bundling needs to be performed on the opposite side (the left side of the photovoltaic module) of the already bundled side (the right side of the photovoltaic module). Therefore, the photovoltaic module needs to be rotated 180°. And in this process, the photovoltaic module on the already bundled side needs to be conveyed out through the conveying mechanism 1, and then after changing the direction, it is conveyed to the bundling position through the conveying mechanism 1 again, which can ensure the bundling accuracy and quality of the photovoltaic module.

[0097] Although the present application has been described in connection with specific embodiments of the present application, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description.

[0098] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the above embodiments and still achieve the desired result. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0099] The embodiments of the present application are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A lateral bundling device for photovoltaic modules after stacking, comprising a conveying mechanism, a bundling mechanism and a tape reel cart arranged in sequence from left to right, characterized in that: The bundling mechanism includes a frame, on which a melting belt rotating structure and a belt threading structure that can move up and down along the frame are installed. The frame is provided with a first guiding member for the lifting of the melting belt rotating structure and the belt threading structure. An auxiliary belt receiving structure is provided on the left side of the frame. The melting belt rotating structure includes a first rotating assembly that can move horizontally left and right and rotate. The first rotating assembly is connected with a belt pulling assembly and a melting belt assembly with a lifting function. The belt pulling assembly is used for the conveying of the tying belt and the auxiliary tightening after the tying belt is closed. The melting belt assembly is used for the tightening, melting and cutting of the tying belt. The belt threading structure includes a second rotating assembly that can move horizontally forward and backward and left and right. The second rotating assembly is connected with a belt threading assembly for threading the tying belt through the legs of the pallet tray. The belt threading assembly can pull the tying belt conveyed by the melting belt rotating structure, thread it through the legs of the pallet tray and send it back to the melting belt rotating structure.

2. The lateral bundling device for photovoltaic module stacks according to claim 1, characterized in that: The belt pulling assembly includes a first mounting frame, on which a first roller is installed. The first roller is connected with a fourth motor for driving its rotation. A second roller is provided on one side of the first roller, and a third roller is provided on the other side of the first roller relative to the second roller. The distances between the second roller and the first roller, and between the third roller and the first roller are both adjustable. A first guiding channel for guiding the tying belt and arranged in an arc shape is provided between the second roller and the first roller. A second guiding channel for guiding the tying belt and arranged in an arc shape is provided between the third roller and the first roller. The ends of the first guiding channel and the second guiding channel far from the first roller intersect and merge into a channel towards the melting belt assembly.

3. The lateral bundling device for photovoltaic module stacks according to claim 2, wherein: The second roller is connected with a second cylinder for driving it to approach or move away from the first roller. The third roller is connected with a third cylinder for driving it to approach or move away from the first roller. Preferably, a connecting rod structure is connected between the second roller and the second cylinder, and between the third roller and the third cylinder.

4. The lateral bundling device for photovoltaic module stacks according to claim 1, characterized in that: The melting belt assembly includes a second mounting frame, on which a pressing wheel for driving the movement of the tying belt and a friction plate pressing block for melting the tying belt are installed. The friction plate pressing block is arranged on the side close to the belt pulling assembly. The pressing wheel is arranged on the side of the friction plate pressing block far from the belt pulling assembly. The pressing wheel is connected with a fifth motor for driving its rotation. The friction plate pressing block is connected with a sixth motor for driving its movement. The sixth motor is a high-frequency motor. A cutter for cutting the tying belt is provided on the side of the friction plate pressing block close to the belt pulling assembly.

5. The lateral bundling device for photovoltaic module stacks according to claim 4, wherein: The second mounting frame is connected with a fourth cylinder for driving its movement. The pressing wheel and the friction plate pressing block are both connected with a matching rack. The rack is fixed on the second mounting frame. The pressing wheel is connected with a fifth cylinder for driving it to approach or move away from the corresponding rack. A pressing rod is provided on the side of the friction plate pressing block far from the corresponding rack. The pressing rod is connected with a sixth cylinder for driving it to approach or move away from the friction plate pressing block. Preferably, a connecting rod structure is connected between the pressing wheel and the fifth cylinder, and between the pressing rod and the sixth cylinder.

6. The lateral bundling device for photovoltaic modules after stacking according to claim 1, wherein: The first rotating assembly includes a third motor, and the third motor is connected with a first rotating plate for installing the tape pulling assembly and the tape melting assembly; the second rotating assembly includes a tenth motor, and the tenth motor is connected with a second rotating plate for installing the tape threading assembly.

7. The lateral bundling device for photovoltaic module stacks according to claim 6, characterized in that: The tape threading assembly includes a first tape threading assembly and a second tape threading assembly which are identical in structure and arranged oppositely. The first tape threading assembly and the second tape threading assembly both include a tape threading arm for threading the tape and a seventh cylinder for driving the tape threading arm to move along the surface of the second rotating plate. The tape threading arm is in a U shape, one side of which is slidably arranged on the second rotating plate, and the end of the other side is connected with an eighth cylinder. The eighth cylinder is connected with a tape clamping plate. The opening surfaces of the two tape threading arms of the first tape threading assembly and the second tape threading assembly are arranged oppositely.

8. The lateral bundling device for photovoltaic module stacks according to claim 1, wherein: The tape melting rotating structure includes a first cross beam horizontally arranged on the frame. A first lifting assembly for driving its lifting and a first translation assembly for driving the first rotating assembly to move left and right are arranged on the first cross beam. A belt pulley is arranged on the first cross beam. The tape threading structure includes a second cross beam horizontally arranged on the frame. A second lifting assembly for driving its lifting, a second translation assembly for driving the second rotating assembly to move forward and backward, and a third translation assembly for driving the second rotating assembly to move left and right are arranged on the second cross beam.

9. The lateral bundling device for photovoltaic modules after stacking according to claim 1, characterized in that: The auxiliary tape connecting structure includes a third mounting bracket. A bracket is arranged on the third mounting bracket. A first tape connecting guide plate which can slide back and forth is arranged on the bracket. The first tape connecting guide plate is connected with a ninth cylinder for driving its sliding. At least one baffle for blocking the tape is arranged above the first tape connecting guide plate. The baffle is connected with a tenth cylinder for driving its left and right movement. A second tape connecting guide plate which cooperates with the first tape connecting guide plate is arranged at the rear side of the first tape connecting guide plate. At least one eleventh cylinder for driving its lifting is connected below the second tape connecting guide plate.

10. A lateral bundling method for photovoltaic modules after stacking, applied to the lateral bundling device for photovoltaic modules after stacking as described in any one of claims 1-9, characterized in that, It includes the following steps: Step 1: The conveying mechanism conveys the stacked photovoltaic modules to the bundling position close to the bundling mechanism, threads the tie tape on the tape reel cart between the first roller and the second roller of the tape pulling assembly, and then the second cylinder drives the second roller to be close to the first roller to clamp the tie tape between the first roller and the second roller. Step 2: The fourth motor drives the first roller to rotate, conveys the tie tape along the first guiding channel and into the first tape connecting guide plate of the auxiliary tape connecting structure, and the first tape threading assembly of the tape threading assembly descends and clamps the tie tape near the end position above the second tape connecting guide plate. Step 3: The first strap threading assembly moves, under the combined cooperation of the second lifting assembly, the second translation assembly, and the third translation assembly, to a leg position at the rear, close to the strapping mechanism side, of the pallet tray located below the stacked photovoltaic modules. The first strap threading assembly passes the tie strap through the front side into the inner side of this leg. Then, the second strap threading assembly catches the tie strap near the end position of the first strap threading assembly, completing the strap threading for one leg of the pallet tray. Step 4: The combined cooperation of the second lifting assembly, the second translation assembly, and the third translation assembly moves the strap threading assembly to a leg position at the front, close to the strapping mechanism side, of the pallet tray located above the stacked photovoltaic modules. During the upward movement of the strap threading assembly, the second rotating assembly drives the strap threading assembly to rotate 180°, swapping the positions of the first strap threading assembly and the second strap threading assembly. Then, the first strap threading assembly clamps the tie strap held by the second strap threading assembly. Next, the first strap threading assembly passes the end of the tie strap it holds through the rear side into the inner side of this leg. Then, the second strap threading assembly catches the tie strap passed through by the first strap threading assembly, completing the strap threading for the second leg of the pallet tray. Step 5: The combined cooperation of the second lifting assembly, the second translation assembly, and the third translation assembly moves the strap threading assembly to the front side of the tape melting and rotating structure. The strap threading assembly inserts the end of the held tie strap between the first roller and the third roller of the tape pulling assembly. The third cylinder drives the third roller to approach the first roller, clamping the tie strap between the first roller and the third roller. At this time, the second roller moves away from the first roller. Then, the fourth motor drives the first roller to rotate, conveying the tie strap along the second guiding channel and starting to overlap with the tie strap located in the first guiding channel for a certain length. Step 6: The fourth cylinder drives the tape melting assembly to rise as a whole, clamping the overlapping part of the tie strap between the pressing wheel and the corresponding toothed plate, and between the friction plate pressing block and the corresponding toothed plate. Then, the pressing wheel presses the tie strap tightly. The fifth motor drives the pressing wheel to rotate, reversely conveying the tie strap connected in the first guiding channel to tighten it. Then, the pressing rod presses the friction plate pressing block against the overlapped and tightened tie strap. The sixth motor drives the friction plate pressing block to move, fusing the two layers of tie strap overlapping at this position together. At the same time, the cutter cuts the tie strap connected in the first guiding channel at the side of the friction plate pressing block, achieving the strapping of two legs at one diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic modules. Step 7: Repeat steps 2 to 6 above to perform tie strap bundling on the two legs at the other diagonal of the two pallet trays located on the upper and lower sides of the photovoltaic modules, finally completing the lateral bundling of one side after stacking the photovoltaic modules. Then, the conveying mechanism conveys the photovoltaic modules and the pallet trays out, and reverses the direction of the photovoltaic modules and the pallet trays, and continues to send them to the left side of the strapping mechanism for continued bundling.

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