Conveying system for photovoltaic panel assembly automatic production line

Abstract

The invention discloses a conveying system for an automatic production line of a photovoltaic panel assembly. The conveying system comprises a conveying line body arranged along a production process, a line body reversing lifter, a fixed type stack multilayer material platform, a movable type shared in-out multilayer material platform and a layer front lifter. And through mobile sharing, the number of feeding and discharging tables is greatly reduced, and the purchase and maintenance cost is reduced. The conveying system integrates reversing lifting, multi-layer buffering and whole-batch synchronous feeding and discharging, and the takt time of the laminating procedure is greatly improved. And a separable power / correction design is adopted, so that the system structure is optimized while the functions are ensured, and the accuracy and stability of the flow are ensured.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel lamination technology, and more specifically to a conveying system for an automated production line of photovoltaic panel modules. Background Technology

[0002] A laminator is one of the essential pieces of equipment for encapsulating solar photovoltaic (PV) modules. During the manufacturing process of solar PV modules, a laminator is needed to press the encapsulating film, solar cells, tempered glass, and backsheet into a rigid whole under high temperature and vacuum conditions.

[0003] Existing laminators typically have feeding and discharging stations at the inlet and outlet for feeding solar cell modules, respectively. Examples include CN114834138B, a fully automatic stacked multilayer laminator, and CN217671633U, a drive control system for multilayer laminators. In photovoltaic module laminators, current equipment consists of a feeding station, a laminator unit, and a discharging station. For a 1GW production line using mainstream equipment, this would consist of three complete machines, requiring six feeding and six discharging stations each, with identical structures, functions, and controls. This identical functionality necessitates each laminator on every production line being equipped with a feeding station, significantly increasing procurement costs. Furthermore, subsequent maintenance, upkeep, and spare parts inventory costs also increase exponentially. Moreover, a large number of repetitive machines occupy valuable workshop space.

[0004] In addition, in the automated production line of photovoltaic modules, the modules need to be transported from one workstation to the next through the transfer equipment between processes. Due to the layout of the production line and the requirements of the process, it is often necessary to change the transfer direction of the modules or to lift them to different levels of the production line. For example, it is necessary to transfer the modules from the east-west transmission line to the north-south transmission line, or to lift them from the first floor line to the second floor line. At present, the elevators commonly used on the production line have a single function. Their lifting platforms are usually only equipped with a fixed direction transmission mechanism, which can only realize the single function of the first transmission direction perpendicular to the main frame of the elevator. When the process layout requires the photovoltaic modules to be output in the second transmission direction perpendicular to the first transmission direction, or when the photovoltaic modules on the production line need to be input into the elevator's transfer mechanism from the second transmission direction, this elevator cannot directly meet the requirements and must be transferred by adding a reversing device. However, the use of reversing equipment in conjunction with the elevator for the secondary transfer of photovoltaic modules has the following drawbacks: (1) The system is complex and occupies a large area: additional reversing equipment is required, which not only increases the complexity and area of ​​the production line, but also increases the production cost. (2) Low efficiency: Secondary transfer increases the total processing time and reduces the production cycle. (3) Poor positioning accuracy: Multiple start-stop and transfer may cause misalignment of photovoltaic modules during docking, affecting the accuracy of automated grasping or processing. Summary of the Invention

[0005] In view of this, the present invention provides a conveying system for an automated production line of photovoltaic panel modules, which can realize shared conveying of materials in and out among multiple laminators, eliminating the need for each laminator to be matched with an additional set of feeding and discharging stations, thereby greatly reducing lamination costs and reducing the factory floor space; moreover, it has the function of adapting to different flow directions, thereby optimizing the layout of the photovoltaic panel module production line and improving production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conveying system for an automated production line of photovoltaic panel modules, comprising: A conveyor line for sequentially conveying multiple photovoltaic panel modules; A line reversing elevator has a vertical conveying direction and a first conveying direction and a second conveying direction arranged vertically. The line reversing elevator is fixed on the discharge side of the conveying line and is used to receive photovoltaic panel components conveyed by the conveying line and convey them from the first conveying direction to the second conveying direction. A fixed multi-layer stacking platform is fixed to the second conveying direction side of the line reversing elevator and is used to receive multiple photovoltaic panel components output by the line reversing elevator in the second conveying direction. A mobile shared multi-layer material loading platform is located on the discharge side of the fixed stacked multi-layer material loading platform and is used to receive the photovoltaic panel modules temporarily stored in multiple layers on the fixed stacked multi-layer material loading platform. A pre-layer lifting platform is installed on the inlet and outlet side of the laminator. It is used to lift the fully loaded mobile shared multi-layer material platform to the inlet and outlet position of the laminator, so that the mobile shared multi-layer material platform can simultaneously transport the multi-layer photovoltaic panel components temporarily stored on it to the laminator for lamination. The laminated photovoltaic panel components are then output from the inlet and outlet of the laminator to the unloaded mobile shared multi-layer material platform.

[0008] Furthermore, the line reversing elevator includes: The elevator body is fixed to the discharge side of the conveyor line, and a first lifting platform is provided on the elevator body; A first conveying mechanism is disposed on the first lifting platform. The starting end of the first conveying mechanism is connected to the discharge end of the conveyor line and is used to convey photovoltaic panel components along the first conveying direction. The second conveying mechanism is vertically and flexibly mounted on the first conveying mechanism for conveying photovoltaic panel components along the second conveying direction. The discharge side of the second conveying mechanism is connected to the infeed side of the fixed stack multi-layer material platform. When the second conveying mechanism descends to the first height, its conveying surface is lower than that of the first conveying mechanism, enabling the photovoltaic panel assembly to be carried by the first conveying mechanism and transported along the first conveying direction. When the second conveying mechanism rises to the second height, its conveying surface is higher than that of the first conveying mechanism, enabling the photovoltaic panel assembly to be carried by the second conveying mechanism and transported along the second conveying direction.

[0009] Furthermore, the first transmission mechanism includes: The first bracket is fixed to the first lifting platform; A first conveyor line having the first conveying direction, wherein there are multiple first conveyor lines, each of which includes a first line body and a second line body fixed at intervals on the top of the first bracket, the gap between the first line body and the second line body is a clearance gap, and the multiple first line bodies are connected by a first drive shaft, and the multiple second line bodies are connected by a second drive shaft. A first drive motor is fixed on the first bracket and is connected to the first drive shaft or one of the first lines. The second drive motor is fixed on the first bracket and is connected to the second drive shaft or one of the second lines. The second transmission mechanism includes: A lifting drive unit, wherein there are multiple lifting drive units, all of which are fixed on the first bracket; The second bracket, which is multiple, is fixedly connected to the lifting ends of the multiple lifting drive units respectively; A second conveyor line having the second conveying direction, there are multiple second conveyor lines, which are fixed at intervals on multiple second brackets, and the multiple second conveyor lines are all connected by a third drive shaft, and at least one second conveyor line passes through the clearance gap; A third drive motor is fixed on one of the second brackets and is connected to the third drive shaft or one of the second transmission lines.

[0010] Furthermore, the mobile shared multi-layer material loading / unloading platform includes: AGV (Automated Guided Vehicle) cart; A shared multi-level material loading platform is mounted on the AGV trolley and can be located on the discharge side of the fixed stacked multi-level material loading platform.

[0011] Furthermore, the shared multi-layer inlet / outlet material station includes: A material platform frame, which is mounted on the AGV trolley; The inlet and outlet conveyor belts are multi-layered and are arranged vertically at intervals on the material platform frame. A drive spindle is vertically mounted on the front side wall of the material platform frame via multiple bearing seats. Multiple first bevel gears are spaced along the length of the drive spindle. A second bevel gear is fixed to the end of the drive shaft on the inlet and outlet conveyor belt of each layer. The first bevel gears and the second bevel gears are meshed and connected for transmission. The drive spindle is connected to the transverse drive device on the front elevator of the layer.

[0012] Furthermore, it also includes a lifting storage rack for storing the shared multi-layer material loading platform.

[0013] Furthermore, the pre-level lifting machine is provided with two second lifting platforms for carrying the shared multi-level material loading platform. One of the second lifting platforms is equipped with the transverse drive device. A driven gear is fixed to the lower end of the drive spindle. The transverse drive device includes: The fourth drive motor is slidably mounted on the second lifting platform via the first guide rail, and a drive gear is fixed on the drive end of the fourth drive motor. A drive cylinder is fixed on the second lifting platform, and the extension end of the drive cylinder is fixedly connected to the fourth drive motor. The drive cylinder is used to drive the fourth drive motor to move closer to the driven gear so that the driving gear and the driven gear can engage and transmit power, and to drive the fourth drive motor to move away from the driven gear so that the driving gear and the driven gear can separate.

[0014] Furthermore, each of the two second lifting platforms is equipped with a alignment pushing cylinder, and both sides of the material platform frame are equipped with a laterally movable alignment pushing frame. The extension and retraction ends of the two alignment pushing frames and the two alignment pushing cylinders can be respectively connected, so that the two alignment pushing cylinders drive the two alignment pushing frames to move closer to each other, thereby aligning the photovoltaic panel components of each layer in the left and right directions. A stop block is installed on the material platform frame at the beginning of the inlet and outlet conveyor belt of each layer, and the rear end of the photovoltaic panel components of each layer can abut against the stop block to achieve alignment of the photovoltaic panel components in the front and rear directions.

[0015] Furthermore, both of the aforementioned regulating push frames include: A transverse pusher plate, comprising multiple transverse pusher plates, is slidably connected to the transverse supports of each layer of the material platform frame via a second guide rail. Each transverse pusher plate has multiple pushing rubber blocks fixed on one side for pushing photovoltaic panel modules. A vertical push plate is fixedly connected to multiple horizontal push plates. An iron block is fixed on one side of the bottom of the vertical push plate. An electromagnet is fixed on the telescopic end of the guiding push cylinder. The electromagnet and the iron block can be magnetically connected and used to push the vertical push plate to move horizontally and pull the vertical push plate back to its original position.

[0016] Furthermore, a reflector is installed at the bottom of the material platform frame, and a photoelectric switch is installed at the top of the floor elevator. The photoelectric switch and the reflector are arranged opposite to each other.

[0017] This invention provides a highly automated, integrated, and flexible photovoltaic panel module lamination and conveying system. Its most prominent technical advantage is: 1. Economic efficiency: By using mobile sharing, the number of inlet and outlet stations is greatly reduced, thus lowering procurement and maintenance costs.

[0018] 2. High efficiency: Integrated reversing lifting, multi-layer buffer, and batch synchronous entry and exit greatly improve the cycle time of the lamination process.

[0019] 3. Precision and Reliability: The system adopts a separable power / correction design, which optimizes the system structure while ensuring functionality, thus guaranteeing the accuracy and stability of the process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a top view of a conveying system for an automated production line of photovoltaic panels, provided by the present invention.

[0022] Figure 2 A three-dimensional structural diagram of the conveyor line, the line reversing elevator, and the fixed stack multi-layer material platform in combination.

[0023] Figure 3 This is a first-person view structural diagram of the line-changing elevator.

[0024] Figure 4 for Figure 3A magnified schematic diagram of the structure of part A in the middle.

[0025] Figure 5 This is a structural schematic diagram of the line-changing elevator from a second perspective.

[0026] Figure 6 This is a first-person structural diagram of a mobile, shared, multi-layer material handling platform.

[0027] Figure 7 This is a second-view structural diagram of a mobile shared multi-layer material platform.

[0028] Figure 8 This is a schematic diagram of the main structure when a mobile shared multi-level material platform is used in conjunction with a front-level elevator.

[0029] Figure 9 This is a schematic diagram of the structure when the driving gear and the driven gear are meshing.

[0030] Figure 10 This is a side view of the structure when a mobile shared multi-level material platform is used in conjunction with a front-level elevator.

[0031] Figure 11 A three-dimensional structural diagram of a shared multi-level material loading and unloading platform.

[0032] Figure 12 for Figure 11 A magnified schematic diagram of the structure of part B in the middle.

[0033] Figure 13 This is a schematic diagram of the transverse push plate. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] like Figures 1-13 As shown, this embodiment of the invention discloses a conveying system for an automated production line of photovoltaic panel modules, comprising: Conveyor line 1 is used to sequentially transport multiple photovoltaic panel modules; Line reversing elevator 2 has a vertical conveying direction and a first conveying direction and a second conveying direction arranged vertically. The line reversing elevator 2 is fixed on the discharge side of the conveying line 1 and is used to receive photovoltaic panel components conveyed by the conveying line 1 and convey them from the first conveying direction to the second conveying direction. Fixed stack multi-layer material platform 3 is fixed on the second conveying direction side of the line body reversing elevator 2 and is used to receive multiple photovoltaic panel components output by the line body reversing elevator 2 through the second conveying direction. The mobile shared multi-layer material platform 4 is located on the discharge side of the fixed stacked multi-layer material platform 3 and is used to receive the photovoltaic panel modules temporarily stored in multiple layers on the fixed stacked multi-layer material platform 3. The front lift 5 is located on the inlet and outlet side of the laminator 6. It is used to lift the fully loaded mobile shared multi-layer material platform 4 to the inlet and outlet 61 of the laminator 6, so that the mobile shared multi-layer material platform 4 can simultaneously transport the multi-layer photovoltaic panel components temporarily stored on it to the laminator for lamination. After lamination, the photovoltaic panel components are then output from the inlet and outlet 61 of the laminator 6 to the unloaded mobile shared multi-layer material platform 4.

[0039] The working process of this embodiment is as follows: The photovoltaic panel modules enter the conveyor line 1 and are sequentially transported to the discharge side, where they enter the line reversing elevator 2. The line reversing elevator 2 first receives the photovoltaic panel modules and picks them up along the first conveying direction (usually consistent with the direction of the conveyor line). Subsequently, after conversion, the conveying direction of the photovoltaic panel modules is changed to a vertical second conveying direction, accompanied by height adjustment, to prepare them for entering the next stage.

[0040] The photovoltaic panel modules are output from the reversing elevator 2 along the second conveying direction and enter the fixed multi-layer stacking platform 3. This platform is stationary and has a multi-layer structure, used to sequentially receive and temporarily store multiple photovoltaic panel modules, serving as a buffer and batch sorting mechanism.

[0041] When one or more layers of the fixed stack multi-layer material platform 3 are full of components, the mobile shared inlet and outlet multi-layer material platform 4 moves to its outlet side to receive these temporarily stored components, and then moves to the lamination elevator 5. The fully loaded mobile shared inlet and outlet multi-layer material platform 4 is transported by the front-layer elevator 5 to the inlet and outlet height of the laminator 6. The mobile shared inlet and outlet multi-layer material platform 4 synchronously transports its multi-layer photovoltaic panel components into the multi-layer chamber of the laminator 6 for lamination.

[0042] After lamination is completed, the laminator 6 pushes the photovoltaic panel module onto a mobile shared multi-layer loading platform 4 that is already unloaded and positioned by the front lift. This platform can then be transported to the next process for unloading the photovoltaic panel module, and then returned to the fixed stack multi-layer loading platform 3 for the next loading, forming a cycle.

[0043] Therefore, the conveying system of this embodiment has the following effects: Revolutionizing the traditional layout and enabling equipment sharing: The fixed inlet and outlet platforms that must be individually configured for each laminator have been eliminated. By using mobile shared platforms that can be transferred between different laminators, one (or more) mobile platforms can serve multiple laminators, greatly reducing equipment procurement costs, floor space requirements, and subsequent maintenance costs.

[0044] Improving production efficiency: The fixed stacking multi-layer material platform enables pre-stacking and buffering of photovoltaic panel modules, while the mobile shared inbound and outbound multi-layer material platform enables batch and synchronous inbound and outbound of multi-layer photovoltaic panel modules, reducing the waiting time for single-piece loading in the laminator and significantly improving the cycle time of the lamination process and overall capacity.

[0045] Continuous automation of the process: From conveying, reversing, buffering to lamination feeding and discharging, the entire process is seamlessly connected, achieving a high degree of automation, reducing manual intervention, and improving production stability and intelligence.

[0046] In some embodiments, the line reversing elevator 2 includes: The elevator body 21 is fixed on the discharge side of the conveyor line 1, and the elevator body 21 is provided with a first lifting platform 211. The first conveying mechanism 22 is mounted on the first lifting platform 211. The starting end of the first conveying mechanism 22 is connected to the discharge end of the conveyor line 1 and is used to convey photovoltaic panel components along the first conveying direction. The second conveying mechanism 23 is vertically and flexibly mounted on the first conveying mechanism 22 and is used to convey photovoltaic panel components along the second conveying direction. The discharge side of the second conveying mechanism 23 is connected to the infeed side of the fixed stack multi-layer material platform 3. When the second conveying mechanism 23 descends to the first height, its conveying surface is lower than that of the first conveying mechanism 22, so that the photovoltaic panel module can be carried by the first conveying mechanism 22 and transported along the first conveying direction. When the second conveying mechanism 23 rises to the second height, its conveying surface is higher than that of the first conveying mechanism 22, so that the photovoltaic panel module can be carried by the second conveying mechanism 23 and transported along the second conveying direction.

[0047] The working process of this embodiment: When transport is required along a first conveying direction (e.g., the X-axis), the second conveying mechanism 23 descends to a first height, with its conveying surface lower than that of the first conveying mechanism 22. The photovoltaic panel module smoothly transitions from the conveyor line 1 onto the first conveying mechanism 22 and is transported. When the photovoltaic panel module reaches a designated position and needs to be reversed, the second conveying mechanism 23 rises to a second height, with its conveying surface higher than that of the first conveying mechanism 22, thereby lifting the photovoltaic panel module and detaching it from the first conveying mechanism 22. At this time, the second conveying mechanism 23 activates, transporting the photovoltaic panel module along a vertical second conveying direction (e.g., the Y-axis) to the fixed stacked multi-layer material platform 3.

[0048] Technical effects of this embodiment: Space-efficient and functionally integrated: The lifting and 90-degree reversing functions are integrated into a single unit, replacing the traditional combination scheme where the lifting machine needs to be configured with a separate reversing device, which significantly saves production line layout space.

[0049] Efficient process and precise positioning: Photovoltaic panel modules can be adjusted in height and changed in direction at the same workstation without secondary positioning and handling, which shortens the transfer time, increases the production cycle, and reduces the risk of positioning errors and module damage caused by multiple handling.

[0050] In some embodiments, the first conveying mechanism 22 includes: The first bracket 221 is fixed on the first lifting platform 211; A first conveyor line 222 having a first conveying direction, there are multiple first conveyor lines 222, each of which includes a first line body 2221 and a second line body 2222 fixed at intervals on the top of a first bracket 221. The gap between the first line body 2221 and the second line body 2222 is a clearance gap 22201. Multiple first line bodies 2221 are connected to each other through a first drive shaft 2223, and multiple second line bodies 2222 are connected to each other through a second drive shaft 2224. The first drive motor 223 is fixed on the first bracket 221 and is connected to the first drive shaft 2223 or one of the first wires 2221. The second drive motor 224 is fixed on the first bracket 221 and is connected to the second drive shaft 2224 or one of the second line bodies 2222. The second transmission mechanism 23 includes: There are multiple lifting drive units 231, all of which are fixed on the first bracket 221. Second bracket 232, there are multiple second brackets 232, which are fixedly connected to the lifting ends 2311 of multiple lifting drive units 231 respectively; The second conveyor line 233 has a second conveying direction. There are multiple second conveyor lines 233, which are fixed at intervals on multiple second brackets 232. The multiple second conveyor lines 233 are all connected by a third drive shaft 234. At least one second conveyor line 233 passes through the clearance gap 22201. The third drive motor 235 is fixed on one of the second brackets 232 and is connected to the third drive shaft 234 or one of the second transmission lines 233.

[0051] The working process of this embodiment: First-direction transmission: The first drive motor 223 and the second drive motor 224 drive the first and second conveyor lines to rotate synchronously, respectively, to achieve transmission in the first direction. The clearance 22201 between the two conveyor lines provides space for the second conveyor line.

[0052] The second conveyor mechanism is raised and lowered: the lifting drive unit 231 (such as a cylinder or electric cylinder) is activated, driving the second bracket 232 and the second conveyor line 233 fixed thereon to be raised and lowered as a whole.

[0053] Second-direction transmission: After the second conveyor line 233 lifts and supports the photovoltaic panel module, the third drive motor 235 drives all the second conveyor lines 233 to rotate synchronously through the third transmission shaft 234, realizing transmission in the second direction. At least one of the second conveyor lines 233 passes through the clearance gap to ensure the stability of the load.

[0054] The specific conveying process described above is as follows: First, the first lifting platform 211 of the elevator body 21 descends to its initial position, connecting the first conveyor line 222 on the first conveying mechanism 22 with the conveyor line 1. Then, the lifting drive unit 231 (such as a cylinder or electric cylinder) actuates, driving the second bracket 232 and the second conveyor line 233 fixed thereon to descend to the first height. At this time, the conveying surface of the first conveyor line 222 becomes the bearing surface, and the photovoltaic modules can be transferred from the conveyor line 1 of the assembly line to the first conveyor line 222. Then, the lifting drive unit 231 (such as a cylinder or electric cylinder) actuates again, driving the second bracket 232 and the second conveyor line 233 fixed thereon to rise to the second height. At this time, the conveying surface of the second conveyor line 233 becomes the bearing surface, supporting the photovoltaic modules on the first conveyor line 222, completing the reversal operation from the first conveying direction to the second conveying direction. Afterward, the second conveyor line 233 transfers the photovoltaic modules along the second conveying direction to the fixed [conveyor line 1]. On the penultimate layer of the stacked multi-layer material platform 3, the second conveyor line 233 descends again relative to the first conveyor line 222 to a first height. At this time, the conveying surface of the first conveyor line 222 becomes the bearing surface again, and the next photovoltaic panel assembly can be transferred from the conveyor line 1 of the production line to the first conveyor line 222. Then, the second conveyor line 233 is raised again relative to the first conveyor line 222 to a second height. At this time, the conveying surface of the second conveyor line 233 becomes the bearing surface again, and the second conveyor line 233 carries the photovoltaic panel assembly. At the same time, the first lifting platform 211 of the elevator body 21 moves up to a suitable position so that the photovoltaic panel assembly on the second conveyor line 233 can be transferred to the penultimate layer of the fixed stacked multi-layer material platform 3. Then, the first lifting platform 211 descends again to the initial position, and the above actions are repeated to complete the process of transferring multiple photovoltaic panel assemblies from the conveyor line 1 to the fixed stacked multi-layer material platform 3 via the line reversing elevator 2.

[0055] Therefore, the technical effects of this embodiment are as follows: Compact structure and no interference: Through the gap avoidance design, two sets of mutually perpendicular transmission lines are interlaced and nested in space, realizing bidirectional transmission function in one plane. The mechanical structure design is ingenious.

[0056] Independent drive and flexible control: The drives in the first, second, and lifting directions are independent of each other, allowing the control system to precisely control the sequence and timing of each action according to the process, resulting in high flexibility.

[0057] Stable operation: The transmission shaft synchronously drives multiple sets of production lines, ensuring that the photovoltaic panels are subjected to uniform force during transmission, preventing deviation or jamming, while reducing the use of drive motors and greatly reducing equipment costs.

[0058] In some embodiments, the mobile shared multi-level loading / unloading platform 4 includes: AGV trolley 41; The shared multi-level material platform 42 is mounted on the AGV trolley 41 and can be located on the discharge side of the fixed stacked multi-level material platform 3.

[0059] As an autonomous mobile platform, the AGV trolley 41 can autonomously navigate between different workstations, carrying the shared multi-layer material platform 42, according to system instructions. For example, it can load components from a fixed stack material platform and then travel to the designated laminar flow lift for docking. Therefore, the cooperation between the material platform and the AGV trolley enables dynamic sharing and flexible scheduling. The AGV trolley provides the material platform with mobility, allowing limited material platform resources to be flexibly scheduled and shared among multiple fixed devices (multiple laminar flows), greatly improving equipment utilization. It also facilitates production line layout adjustments and capacity balancing. If the service sequence of the laminar flows needs to be adjusted or additional equipment added, only the AGV trolley's path needs to be replanned, without altering the fixed facilities.

[0060] In some embodiments, the shared multi-level feeder platform 42 includes: The material platform frame 421 is mounted on the AGV trolley 41. The inlet and outlet conveyor belt 422 is multi-layered and is arranged at intervals on the material platform frame 421. The drive spindle 423 is vertically mounted on the front side wall of the material platform frame 421 via multiple bearing seats 424. Multiple first bevel gears 425 are spaced along the length of the drive spindle 423. A second bevel gear 426 is fixed on the shaft end of the drive shaft 4221 on the inlet and outlet conveyor belt 422 of each layer. The first bevel gears 425 and the second bevel gears 426 are meshed and connected for transmission. The drive spindle 423 is connected to the transverse drive device 52 on the layer front elevator 5.

[0061] The working process of this embodiment: Internal synchronous drive: The in-and-out conveyor belts 422 of each layer mesh with the first bevel gear 425 on the drive spindle 423 via the second bevel gear 426 on its drive shaft 4221. When the drive spindle 423 rotates, the in-and-out conveyor belts 422 of all layers run synchronously in the same direction.

[0062] External power docking: The lower end of the drive spindle 423 extends out, ready to dock with the transverse drive device 52 on the floor front elevator 5, thereby obtaining power.

[0063] Therefore, the technical effect of this embodiment is: Simplifying the mobile platform structure and reducing the failure rate: The main drive unit 52 is placed on a fixed front-of-floor elevator instead of a moving AGV platform. This reduces the weight and complexity of the mobile platform, saves AGV energy consumption, and reduces the hassle of wiring and maintaining the drive unit 52 on the mobile platform, thus improving reliability.

[0064] Ensuring synchronization accuracy: A single spindle coupled with a bevel gear set drives all layers, mechanically guaranteeing absolute synchronization of the multi-layer conveyor belts. This is crucial for the synchronized entry and exit of multi-layer photovoltaic panels into and out of the laminator's multi-layer chambers. This effectively avoids the problem of asynchronous material flow between layers caused by existing multi-layer material platforms where each layer's conveyor belt is driven by its own motor.

[0065] In some embodiments, a lifting storage rack 7 for storing the shared inlet and outlet multi-layer material station 42 is also included.

[0066] When the shared multi-level material platform 42 is not in operation, the AGV trolley 1 can transport it to the fixed lifting storage rack 7 for storage, so that the photovoltaic panel components of the fixed stacked multi-level material platform 3 can be transferred from the shared multi-level material platform 42. The AGV trolley can then temporarily go to charge or perform other tasks.

[0067] The lifting storage rack 7 includes two parallel base plates 71. Support plates 73 are mounted on the base plates 71 via screw jacks 72. During storage, the AGV (Automated Guided Vehicle) places the shared multi-layer material platform 42 onto the support plates 73. The support plates 73 are then raised to a certain height by the screw jacks 72, detaching the shared multi-layer material platform 42 from the AGV. The AGV then drives away, and the support plates 73 descend to a suitable position, temporarily placing the shared multi-layer material platform 42 on the lifting storage rack 7. When needed, the support plates 73 are raised again, the AGV enters, and the support plates 73 descend, handing the shared multi-layer material platform 42 over to the AGV. The AGV then carries the shared multi-layer material platform 42 away from the lifting storage rack 7 to perform the corresponding lamination and material handling tasks.

[0068] Of course, the lifting storage rack 7 can also appropriately adjust the docking height of the shared multi-level material platform 42 on it relative to the fixed multi-level material platform 3, thereby enabling the two to dock seamlessly. This allows the fixed multi-level material platform 3 to transport the photovoltaic panel components it delivers to the shared multi-level material platform 42, avoiding the problem of inaccurate docking caused by processing errors or other reasons on either the fixed multi-level material platform 3 or the shared multi-level material platform 42.

[0069] In some embodiments, the pre-floor elevator 5 is provided with two second lifting platforms 51 for carrying a shared multi-layer material platform 42. One of the second lifting platforms 51 is equipped with a transverse drive device 52, and a driven gear 427 is fixed to the lower end of the drive spindle 423. The transverse drive device 52 includes: The fourth drive motor 521 is slidably mounted on the second lifting platform 51 via the first guide rail 522, and the drive end of the fourth drive motor 521 is fixed with a drive gear 523. A drive cylinder (not shown) is fixed on the second lifting platform 51, and the extension end 524 of the drive cylinder is fixedly connected to the fourth drive motor 521. The drive cylinder is used to drive the fourth drive motor 521 to move closer to the driven gear 427 so that the driving gear 523 and the driven gear 427 are engaged and connected for transmission, and to drive the fourth drive motor 521 to move away from the driven gear 427 so that the driving gear 523 and the driven gear 427 are separated.

[0070] In this embodiment, the AGV trolley 41 transports the shared multi-layer material platform 42 to the workstation of the pre-layer elevator 5 next to the laminator 6. The shared multi-layer material platform 42 is mounted on the second lifting platform 51. Then, the shared multi-layer material platform 42 is lifted to the inlet / outlet position of the laminator 6. Afterward, the drive cylinder on the second lifting platform 51 drives the fourth drive motor 521 to move horizontally, causing the drive gear 523 to engage with the driven gear 427, driving the drive spindle 423 to rotate. This drives the inlet / outlet conveyor belt 422 of all layers on the shared multi-layer material platform 42 to work, completing the loading and unloading of photovoltaic panel components between the AGV and the laminator. After the work is completed, the second lifting platform 51 descends, and the drive cylinder drives the fourth drive motor 521 back to the initial position. At this time, the drive gear 523 and the driven gear 427 disengage, and the AGV trolley can then move the material platform away.

[0071] Therefore, the shared multi-layer material platform 42 in this embodiment is an "offline," passive, lightweight platform during movement and storage. When it reaches the working position, it quickly connects with the fixed external power source, namely the fourth drive motor of the second lifting platform, instantly gaining power and becoming a fully functional "online" workbench. This eliminates the need for the AGV and the material platform itself to carry high-power drive motors and complex power supply systems, reducing the AGV's load and energy consumption, and improving its endurance and reliability. It also simplifies the material platform structure and reduces costs. In addition, the material platform is only powered at the working position and remains completely unpowered along the AGV's movement path, fundamentally eliminating electrical safety risks such as entanglement, pulling, wear, and short circuits caused by the tow cable.

[0072] In other embodiments, each of the two second lifting platforms 51 is equipped with a straightening push cylinder 53, and both sides of the material platform frame 421 are equipped with a laterally movable straightening push frame 428. The two straightening push frames 428 can be connected to the telescopic ends of the two straightening push cylinders 53 respectively, so that the two straightening push cylinders 53 can drive the two straightening push frames 428 to move closer to each other, thereby straightening the photovoltaic panel components of each layer in the left and right directions. A stop block 429 is installed on the material platform frame 421 at the beginning of the inlet and outlet conveyor belt 422 of each layer. The rear end of the photovoltaic panel components of each layer can be blocked on the stop block 429 to achieve straightening of the photovoltaic panel components in the front and rear directions.

[0073] In this embodiment, the AGV trolley carrying the passive shared multi-level material platform 42 moves to the front lift 5. The second lifting platform 51 descends to receive and support the shared multi-level material platform 42, and the AGV trolley exits or enters a standby state.

[0074] Front and rear alignment: The fourth drive motor 521 moves laterally under the drive cylinder, so that the drive gear 523 and the driven gear 427 engage to drive the inlet and outlet conveyor belt 422 of all layers on the shared inlet and outlet multi-layer material platform 42. This causes each layer of photovoltaic panel to be conveyed backward (away from the inlet and outlet of the laminator) on the conveyor belt until the rear end of the photovoltaic panel abuts against the stop block (which can be a rubber block to avoid scratching the photovoltaic panel), thereby completing the positioning and alignment of the material in the transmission direction.

[0075] Left and right alignment: The two alignment push cylinders 53 operate simultaneously, pushing the two alignment push frames 428 connected to them to move towards each other, pushing each layer of photovoltaic panel components towards the center from both sides, realizing the positioning and alignment in the width direction of the material. Afterwards, the alignment push frame 428 is reset under the action of the alignment push cylinders 53.

[0076] Then, the second lifting platform 51 lifts the already aligned material platform to the inlet / outlet side of the laminator. Afterwards, the fourth drive motor 521 moves laterally again, causing the drive gear 523 and driven gear 427 to engage again, driving the inlet / outlet conveyor belts 422 of all layers on the shared inlet / outlet multi-layer material platform 42 to work synchronously. This allows each layer of material to be conveyed forward (towards the laminator's inlet / outlet) on the conveyor belts, synchronously feeding the aligned material into the laminator. Alternatively, the conveyor belts can be controlled to move backward, outputting the already laminated photovoltaic panels from the laminator to the unloaded shared inlet / outlet multi-layer material platform 42, thus discharging the laminator.

[0077] In this embodiment, the expensive power system is transferred from the moving material platform to a fixed workstation, namely the pre-layer elevator, making the moving material platform itself simpler, lighter, and lower in cost. This "passive" material platform can be shared by multiple laminators or different workstations, greatly improving equipment utilization and investment efficiency. Moreover, the cylinder power provided by the pre-layer elevator, along with the reverse operation of the conveyor belt, enables automatic forward / backward and left / right alignment of materials before entering the laminator, ensuring the positional accuracy of the materials upon entering the laminator and improving lamination quality and production stability. In addition, this embodiment features fully automated processes from AGV transportation, pre-layer docking, automatic alignment to power-driven transmission, reducing manual intervention and improving production efficiency.

[0078] In some embodiments, both guide pushers 428 include: There are multiple transverse push plates 4281, which are slidably connected to the transverse supports 4211 of each layer of the material table frame 421 via the second guide rail 4282. Each transverse push plate 4281 has multiple pushing rubber blocks 4283 fixed on one side for pushing the photovoltaic panel module. The vertical push plate 4284 is fixedly connected to multiple horizontal push plates 4281. An iron block 4285 is fixed on one side of the bottom of the vertical push plate 4284. An electromagnet 531 is fixed on the telescopic end of the guiding push cylinder 53. The electromagnet 531 and the iron block 4285 can be magnetically connected and used to push the vertical push plate 4284 to move horizontally and pull the vertical push plate 4284 back to its original position.

[0079] Correction action: The correction push cylinder 53 extends, pushing the vertical push plate 4284 and all the horizontal push plates 4281 connected to it to move towards the photovoltaic panel module, completing the lateral push correction.

[0080] Reset Action: After the alignment is completed, the alignment cylinder 53 retracts. At this time, the electromagnet 531 fixed to the extension end of the cylinder is energized, generating a magnetic force to attract the iron block 4285 fixed on the vertical push plate 4284. As the cylinder retracts, it pulls the vertical push plate 4284 and all the horizontal push plates 4281 back to their initial positions. After the reset, the electromagnet 431 is de-energized, and the electromagnet 431 separates from the iron block 4285.

[0081] Therefore, this embodiment employs a single vertical pusher plate that links with the horizontal pushers of all floors, achieving synchronous alignment of multi-layer materials using a single-point power source. The structure is ingenious, and the power requirement is singular. Furthermore, the ingenious use of electromagnets for automatic resetting of the alignment frame eliminates the complexity and cost of installing reset springs or cylinders on the material platform, perfectly embodying the design philosophy of power originating from the workstation. In addition, the alignment pusher on the material platform side is entirely a mechanical structure, without any power cables or air pipes, further ensuring the simplicity and reliability of the material platform.

[0082] In some embodiments, a reflector 9 is installed at the bottom of the material platform frame 421, and a photoelectric switch 10 is installed at the top of the floor elevator 5. The photoelectric switch 10 and the reflector 9 are arranged opposite to each other.

[0083] When the AGV trolley 41 transports the shared multi-level material platform 42 to the front elevator 5, the reflector 9 happens to enter the detection area of ​​the photoelectric switch 10. The beam of light emitted by the photoelectric switch 10 is reflected and received by the reflector 9, thus generating a signal that the material platform is accurately positioned. This provides a crucial position confirmation signal for the entire automation process. Only upon receiving this signal will the control system allow subsequent processes such as "gear engagement" and "alignment actions" to proceed, preventing equipment collisions or malfunctions caused by the material platform not being in place.

[0084] Furthermore, during the material alignment process, materials from each layer are conveyed backward via a conveyor belt. When a layer of material blocks the beam emitted by the photoelectric switch 10, it indicates that the material is about to reach the stop plate. Then, each layer of material continues to be conveyed backward for a further distance, at which point all layers of material reach the stop plate. Therefore, the photoelectric switch can also perform position detection for material alignment, improving alignment accuracy.

[0085] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0086] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A conveying system for an automated production line of photovoltaic panel modules, characterized in that, include: Conveyor line (1), the conveyor line (1) is used to sequentially convey multiple photovoltaic panel modules; Line reversing elevator (2), the line reversing elevator (2) has a vertical conveying direction and a first conveying direction and a second conveying direction arranged vertically. The line reversing elevator (2) is fixed on the discharge side of the conveying line (1) and is used to receive the photovoltaic panel components conveyed by the conveying line (1) and convey them from the first conveying direction to the second conveying direction. Fixed stack multi-layer material platform (3), the fixed stack multi-layer material platform (3) is fixed on the second conveying direction side of the line reversing elevator (2), and is used to receive multiple photovoltaic panel components output by the line reversing elevator (2) through the second conveying direction; Mobile shared multi-layer material platform (4), the mobile shared multi-layer material platform (4) is located on the discharge side of the fixed stack multi-layer material platform (3), and is used to receive the photovoltaic panel components temporarily stored in multiple layers of the fixed stack multi-layer material platform (3). A front lift (5) is installed on the inlet and outlet side of the laminator (6) to lift the fully loaded mobile shared multi-layer material platform (4) to the inlet and outlet (61) position of the laminator (6), so that the mobile shared multi-layer material platform (4) can synchronously transport the multi-layer photovoltaic panel components temporarily stored on it to the laminator for lamination. After lamination, the photovoltaic panel components are output from the inlet and outlet (61) of the laminator (6) to the unloaded mobile shared multi-layer material platform (4).

2. The conveying system for an automated production line of photovoltaic panel modules according to claim 1, characterized in that, The line reversing elevator (2) includes: The elevator body (21) is fixed on the discharge side of the conveyor line (1), and the elevator body (21) is provided with a first lifting platform (211). The first conveying mechanism (22) is set on the first lifting platform (211). The starting end of the first conveying mechanism (22) is connected to the discharge end of the conveying line (1) for conveying photovoltaic panel components along the first conveying direction. The second conveying mechanism (23) is vertically mounted on the first conveying mechanism (22) and is used to convey photovoltaic panel components along the second conveying direction. The discharge side of the second conveying mechanism (23) is connected to the feed side of the fixed stack multi-layer material platform (3). When the second conveying mechanism (23) descends to the first height, its conveying surface is lower than that of the first conveying mechanism (22), so that the photovoltaic panel assembly can be carried by the first conveying mechanism (22) and transported along the first conveying direction. When the second conveying mechanism (23) rises to the second height, its conveying surface is higher than that of the first conveying mechanism (22), so that the photovoltaic panel assembly can be carried by the second conveying mechanism (23) and transported along the second conveying direction.

3. The conveying system for an automated production line of photovoltaic panel modules according to claim 2, characterized in that, The first transmission mechanism (22) includes: The first bracket (221) is fixed on the first lifting platform (211); The first conveyor line (222) has the first conveying direction. There are multiple first conveyor lines (222). Each first conveyor line (222) includes a first line body (2221) and a second line body (2222) fixed at intervals on the top of the first bracket (221). The gap between the first line body (2221) and the second line body (2222) is a clearance gap (22201). The multiple first line bodies (2221) are connected by a first drive shaft (2223), and the multiple second line bodies (2222) are connected by a second drive shaft (2224). The first drive motor (223) is fixed on the first bracket (221) and is connected to the first drive shaft (2223) or one of the first line bodies (2221) in a transmission connection. The second drive motor (224) is fixed on the first bracket (221) and is connected to the second drive shaft (2224) or one of the second line bodies (2222). The second transmission mechanism (23) includes: A lifting drive unit (231) is provided, and there are multiple lifting drive units (231), all of which are fixed on the first bracket (221); The second bracket (232) is multiple, and it is fixedly connected to the lifting end (2311) of the multiple lifting drive units (231) respectively; The second conveyor line (233) has the second conveying direction. There are multiple second conveyor lines (233), which are fixed at intervals on multiple second brackets (232). The multiple second conveyor lines (233) are connected by a third drive shaft (234). At least one second conveyor line (233) passes through the clearance gap (22201). The third drive motor (235) is fixed on one of the second brackets (232) and is connected to the third drive shaft (234) or one of the second transmission lines (233).

4. A conveying system for an automated production line of photovoltaic panel modules according to any one of claims 1-3, characterized in that, The mobile shared multi-level material handling platform (4) includes: AGV trolley (41); A shared multi-level material platform (42) is mounted on the AGV trolley (41). The shared multi-level material platform (42) can be located on the discharge side of the fixed stack multi-level material platform (3).

5. A conveying system for an automated production line of photovoltaic panel modules according to claim 4, characterized in that, The shared multi-level feeder platform (42) includes: A material platform frame (421) is mounted on the AGV trolley (41); The inlet and outlet conveyor belt (422) is multi-layered and is arranged vertically on the material platform frame (421). A drive spindle (423) is vertically mounted on the front side wall of the material platform frame (421) via multiple bearing seats (424). Multiple first bevel gears (425) are spaced along the length of the drive spindle (423). A second bevel gear (426) is fixed on the shaft end of the drive shaft (4221) on each layer of the inlet and outlet conveyor belt (422). The first bevel gears (425) and the second bevel gears (426) are meshed and connected in a transmission. The drive spindle (423) is connected in a transmission to the transverse drive device (52) on the front lift (5) of the layer.

6. A conveying system for an automated production line of photovoltaic panel modules according to claim 4, characterized in that, It also includes a lifting storage rack (7) for storing the shared multi-level feeder (42).

7. A conveying system for an automated production line of photovoltaic panel modules according to claim 5, characterized in that, The front lift (5) is provided with two second lifting platforms (51) for carrying the shared multi-layer material platform (42). One of the second lifting platforms (51) is equipped with the transverse drive device (52). The lower end of the drive spindle (423) is fixed with a driven gear (427). The transverse drive device (52) includes: The fourth drive motor (521) is slidably mounted on the second lifting platform (51) via the first guide rail (522), and a drive gear (523) is fixed on the drive end of the fourth drive motor (521). A drive cylinder is fixed on the second lifting platform (51), and the extension end (524) of the drive cylinder is fixedly connected to the fourth drive motor (521). The drive cylinder is used to drive the fourth drive motor (521) to move closer to the driven gear (427) so that the driving gear (523) and the driven gear (427) can be engaged and connected for transmission, and to drive the fourth drive motor (521) to move away from the driven gear (427) so that the driving gear (523) and the driven gear (427) can be separated.

8. A conveying system for an automated production line of photovoltaic panel modules according to claim 7, characterized in that, Each of the two second lifting platforms (51) is equipped with a straightening push cylinder (53). Both sides of the material platform frame (421) are equipped with a straightening push frame (428) that can move laterally. The extension ends of the two straightening push frames (428) and the two straightening push cylinders (53) can be connected respectively. The two straightening push cylinders (53) drive the two straightening push frames (428) to move closer to each other, thereby straightening the photovoltaic panel components of each layer in the left and right directions. The material platform frame (421) is equipped with a stop block (429) at the beginning of the inlet and outlet conveyor belt (422) of each layer. The rear end of the photovoltaic panel components of each layer can be blocked on the stop block (429) to achieve straightening of the photovoltaic panel components in the front and rear directions.

9. A conveying system for an automated production line of photovoltaic panel modules according to claim 8, characterized in that, Both of the aforementioned guide pushers (428) include: A transverse push plate (4281) is provided. There are multiple transverse push plates (4281), which are slidably connected to the transverse supports (4211) of each layer of the material platform frame (421) via the second guide rail (4282). Each transverse push plate (4281) has multiple pushing rubber blocks (4283) fixed on one side for pushing photovoltaic panel modules. A vertical push plate (4284) is fixedly connected to multiple horizontal push plates (4281). An iron block (4285) is fixed on one side of the bottom of the vertical push plate (4284). An electromagnet (531) is fixed on the telescopic end of the alignment push cylinder (53). The electromagnet (531) and the iron block (4285) can be magnetically connected to each other and are used to push the vertical push plate (4284) to move horizontally and pull the vertical push plate (4284) back to its original position.

10. A conveying system for an automated production line of photovoltaic panel modules according to claim 8, characterized in that, A reflector (9) is installed at the bottom of the material platform frame (421), and a photoelectric switch (10) is installed at the top of the floor front elevator (5). The photoelectric switch (10) and the reflector (9) are arranged opposite to each other.

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