A scrap component backplane winding device

Abstract

This utility model belongs to the field of photovoltaic module recycling and processing, specifically disclosing a backsheet winding device for scrapped modules. The device includes a feeding conveyor platform, a discharging conveyor platform, and a hot-blade separation mechanism. The discharging conveyor platform is equipped with a synchronous winding mechanism and a linear pushing mechanism. The synchronous winding mechanism automatically winds the peeled backsheet through the gap formed by two winding rods. The linear pushing mechanism pushes the rolled film to the discharging platform through a linear module and a flexible push plate. The hot-blade separation mechanism integrates a heating module with adjustable temperature to ensure efficient backsheet peeling. The control system coordinates the hot-blade movement speed, winding rod rotation speed, and pushing action via a PLC to achieve full-process automation. This utility model solves the problems of low efficiency, high labor intensity, and safety hazards associated with manual backsheet collection. It has advantages such as constant winding tension, synchronized speed matching, and edge protection, significantly shortening the processing time per module and improving efficiency. It is suitable for green recycling production lines for photovoltaic modules.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module recycling and processing, and in particular to a device for winding up the backsheet of a scrapped module. Background Technology

[0002] In the disposal process of single-glass modules (photovoltaic modules), the backsheet, as an important component of the module, needs to be separated from the glass substrate by heating with a hot knife. However, in existing technologies, the backsheets after hot knife separation mostly rely on manual collection, which has many drawbacks.

[0003] On the one hand, manual intervention is inefficient. Manually picking up the backplate requires waiting for the hot knife operation to complete, and only one backplate can be processed at a time, making it impossible to coordinate with the continuous operation of the hot knife, thus extending the overall process cycle time. On the other hand, it is labor-intensive. The backplates are large, and manual handling easily leads to operator fatigue, and the high temperature of the backplates poses a risk of burns. Furthermore, there is a serious automation gap. Manual collection cannot be automatically connected with subsequent crushing and recycling processes, creating a bottleneck in the production line and hindering the full automation of the waste component processing process.

[0004] Currently, there is a lack of fully automated winding and pushing equipment on the market for hot knife stripping of back plates. There is an urgent need for a solution that can be linked with the hot knife device to achieve continuous back plate processing. Utility Model Content

[0005] The purpose of this invention is to provide a backplate winding device for scrapped components, which solves the above-mentioned technical problems existing in the prior art and realizes continuous operation of hot knife separation of backplates.

[0006] To achieve the above objectives, this utility model provides a backplate winding device for scrapped components, including a feeding conveyor platform, a discharging conveyor platform, and a hot knife separation mechanism located between the two. The device is characterized in that the discharging conveyor platform is equipped with a synchronous winding mechanism and a linear pushing mechanism; the synchronous winding mechanism includes a winding motor and two winding rods driven and connected to the motor shaft of the winding motor. The two winding rods are arranged parallel to each other and symmetrically distributed on both sides of the motor shaft, forming a gap between the two winding rods to accommodate the backplate entering. The winding motor drives the two winding rods to rotate around the center of their connecting line, winding the backplate entering the gap; the linear pushing mechanism includes a linear module, a cylinder, and a push plate. The linear module is arranged parallel to the rear of the two winding rods, and the cylinder is fixed to the slider of the linear module. A flexible push plate is installed at the telescopic end of the cylinder; the outlet end of the hot knife separation mechanism is equipped with a guide module for guiding the backplate into the gap of the synchronous winding mechanism.

[0007] The above technical solution aims to propose a backplate winding device for scrapped components. By setting up a synchronous winding mechanism and a linear pushing mechanism, it realizes the automatic winding and pushing of the stripped backplate, solves the problems of low efficiency and high labor intensity of manual collection, and improves the degree of automation and production efficiency.

[0008] Optionally, the gap between the two take-up bars is 5 to 10 mm. This solution limits the gap between the two take-up bars to 5 to 10 mm to ensure that the back panel can smoothly enter the gap and be stably taken up, avoiding take-up failure or damage to the back panel due to excessive or insufficient gap.

[0009] Optionally, the linear module has a stroke of 1500mm and a positioning accuracy of ±0.1mm. This solution defines the specific parameters of the linear module, ensuring the accuracy and stability of the roll film delivery to meet the processing requirements of backsheets of different sizes.

[0010] Optionally, the pusher plate is arc-shaped, and its pushing surface is connected to a flexible material. In this design, the pusher plate adopts an arc-shaped design and is connected to a flexible material, which effectively prevents the edge of the roll film from breaking during the pushing process, improving the integrity of the roll film and the efficiency of subsequent processing.

[0011] Optionally, the hot knife separation mechanism includes a blade head, which integrates a heating module with a temperature range of 0–300°C. The heating module can adjust its temperature according to the backing material to ensure effective peeling while avoiding overheating and material damage.

[0012] Optionally, the scrap component backplate winding device also includes a control system. This control system integrates a PLC and a human-machine interface (HMI) to receive cutter head movement speed signals and winding rod speed signals, and to coordinate cutter head movement, winding rod speed, and linear module movement. This technical solution, through a control system integrating a PLC and HMI, achieves coordinated control of cutter head movement, winding rod speed, and linear module movement, improving the automation level and ease of operation of the equipment.

[0013] Optionally, the rotational speed range of the take-up motor is 0–200 rpm, and its rotational speed is matched in real time with the cutting head's moving speed through a control system. This technical solution limits the rotational speed range of the take-up motor and proposes real-time matching between the take-up motor's rotational speed and the cutting head's moving speed to ensure stable tension during the backplate winding process and avoid stretching or accumulation.

[0014] Optionally, the control system ensures that the backsheet winding tension remains constant within the range of 5 to 10 N through synchronous control logic, further guaranteeing the winding quality and reducing the risk of backsheet damage.

[0015] Compared with the prior art, the present invention discloses at least the following beneficial effects: The present invention solves the problems of low efficiency, high labor intensity and safety hazards of manual collection of backsheets through automated winding and pushing design, realizes high efficiency, precision and full-process automation of backsheet processing, and provides a reliable solution for the field of photovoltaic module recycling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the scrap component backplate winding device of this utility model;

[0018] Figure 2 This is a rear view of the scrap component backplate winding device of this utility model;

[0019] Figure 3 This is a top view of the scrap component backplate winding device of this utility model;

[0020] Figure 4 This is a right view of the scrap component backplate winding device of this utility model;

[0021] Figure 5 This is an isometric view of the scrap component backplate winding device of this utility model;

[0022] Figure 6 This is a schematic diagram showing the operating status of the synchronous winding mechanism in the device of this utility model;

[0023] Figure 7 This is a diagram showing the state of the device when it begins to wind up.

[0024] Figure 8 This is a diagram showing the state of the device when winding is complete.

[0025] Figure 9 This is a diagram showing the state of the device of this utility model when it pushes the film roll from the side.

[0026] In the diagram: 1. Feeding conveyor platform; 11. Feeding roller; 12. Chain; 2. Double roller clamping mechanism; 21. Upper roller; 22. Lower roller; 3. Hot knife separation mechanism; 31. Cutting head; 32. Guide module; 4. Synchronous winding mechanism; 41. First winding rod; 42. Second winding rod; 43. Winding motor; 5. Linear pushing mechanism; 51. Linear module; 52. Cylinder; 53. Push plate; 6. Unloading conveyor platform; 61. Unloading roller; 7. Back plate; 8. Components to be processed. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1 to 9 As shown, this utility model embodiment provides a backplate winding device for scrapped components, suitable for green recycling production lines of scrapped components, and particularly suitable for continuous processing of backplates 7 after hot knife peeling. The device includes a feeding conveyor platform 1, a discharging conveyor platform 6, a hot knife separation mechanism 3, a synchronous winding mechanism 4, a double roller clamping mechanism 2, and a control system.

[0030] In this embodiment, the feeding and conveying platform 1 is used to place and transport the component 8 to be processed. When in use, the glass surface of the component 8 to be processed faces the placement.

[0031] Specifically, the feeding and conveying platform 1 includes several feeding rollers 11 rotating on the frame. The feeding rollers 11 can be connected to the drive motor through a transmission mechanism such as a belt drive mechanism or a chain drive mechanism. The drive motor drives each feeding roller 11 to rotate synchronously, thereby realizing the transmission of the components 8 to be processed.

[0032] In one specific embodiment, a gear is fixed to one end of the feeding roller 11, and a chain 12 meshes with the gear. Adjacent feeding rollers 11 are connected by the chain 12.

[0033] In this embodiment, the double-roller clamping mechanism 2 includes an upper roller 21 and a lower roller 22, with one end of the upper roller 21 and the lower roller 22 meshing with each other to achieve transmission. Specifically, the upper roller 21 and the lower roller 22 are rotatably mounted on a support frame, and one end of the upper roller 21 and the lower roller 22 is fixedly connected to a gear. The two gears mesh to achieve synchronous rotation in opposite directions, and one of the gears is connected to a drive motor through a transmission system. The upper roller 21 and the lower roller 22 are cylindrical structures, and their surfaces are specially treated according to the characteristics of the scrapped components to be transported, such as anti-slip treatment and surface flexibility treatment, to reduce damage to the scrapped components. After the component to be processed 8 is clamped, the drive motor runs, transmitting power to the upper roller 21 and the lower roller 22 through the gear transmission system. Since the gears at the ends of the upper roller 21 and the lower roller 22 mesh with each other, the two rollers rotate synchronously at the same speed or a predetermined speed ratio, thereby driving the component to be processed 8 clamped between the two rollers to be transported forward. During the transfer process, the clamping device remains clamped to ensure that the material does not get caught between the rollers. At the same time, the double roller clamping mechanism 2 serves to clamp and position the component 8 to be processed during the hot knife separation process of the back plate 7.

[0034] In this embodiment, the hot knife separation mechanism 3 is located between the loading conveyor platform 1 and the unloading conveyor platform 6. It includes a knife head 31, a heating module, and a guide module 32 with a guiding function. The knife head 31 of the hot knife integrates a heating module with a controllable temperature, which can reach up to 300°C. It is used to move along a preset trajectory and heat and peel off the back plate 7. The peeled back plate 7 is guided into the synchronous winding mechanism 4 by the guide module 32.

[0035] The single-glass module is placed face down on the feeding conveyor platform 1. The hot knife separation mechanism 3 is started. The hot knife moves along the preset trajectory and heats and peels off the back plate 7. The peeled back plate 7 enters the gap of the synchronous winding mechanism 4 through the guide module 32.

[0036] In this embodiment, the synchronous winding mechanism 4 is mounted on the unloading conveyor platform 6. Its core consists of two parallel winding rods, namely the first winding rod 41 and the second winding rod 42, with a distance of 5-10 mm between them, forming a gap to accommodate the peeled backing plate 7. One end of each winding rod is simultaneously fixed to a connector, which is connected to the motor shaft of the winding motor 43. The motor shaft of the winding motor 43 is located at the midpoint of the line connecting the centerlines of the first winding rod 41 and the second winding rod 42. The winding motor 43 drives the two winding rods to rotate around the center of their line, winding up the peeled backing plate 7 that has entered the gap.

[0037] After the front end of the back plate 7 enters the gap between the take-up rods, the take-up motor 43 starts and drives the two take-up rods to rotate. The rotation speed is matched with the moving speed of the hot knife in real time, and the back plate 7 is rolled into a roll film until the back plate 7 is completely peeled off and rolled into a roll film with a diameter of 100-300mm (automatically adjusted according to the length of the back plate 7).

[0038] In this embodiment, the linear pushing mechanism 5 includes a linear module 51, a cylinder 52, and a push plate 53. The linear module 51 is arranged parallel to the rear of the two take-up rods, with a stroke of 1500mm and a positioning accuracy of ±0.1mm. It includes a linear guide rail and a slider. The cylinder 52 is fixed on the slider, and a flexible push plate 53 is installed on the telescopic end of the cylinder 52 for pushing the wound film to the unloading conveyor platform 6.

[0039] After winding is completed, the linear module 51 drives the pusher plate 53 to move behind the winding rod, and the cylinder 52 extends to make the pusher plate 53 fit against the end face of the film roll. The linear module 51 moves to the next process conveyor line at a speed of 200mm / s. After reaching the position sensor, the cylinder 52 retracts, the pusher plate 53 disengages from the film roll, and the film roll falls into another conveyor line or recycling bin (not shown in the figure), completing the pushing process.

[0040] In this embodiment, the structure of the unloading conveying platform 6 can be the same as that of the loading conveying platform 1, including a plurality of unloading rollers 61 rotating in the frame. The unloading rollers 61 are used to carry and transport the glass plate after the backing plate 7 has been peeled off, and transport it to the next process.

[0041] In this embodiment, the control system integrates a PLC and a human-machine interface to receive signals from the hot knife position sensor and the take-up rod encoder, coordinate the movement of the hot knife, the rotation speed of the take-up rod and the action of the linear module 51, realize full-process timing control, ensure that the take-up tension of the back plate 7 is constant within the range of 5 to 10 N, and match the rotation speed of the take-up rod with the movement speed of the hot knife in real time.

[0042] It should be understood that the linear module 51 is used in this utility model to realize the precise movement and positioning of the push plate 53. In practical applications, a lead screw or cylinder 52 can also be used as a substitute. However, the linear module 51 has more advantages in terms of accuracy and control flexibility. Therefore, a comprehensive evaluation is needed based on the actual process requirements and accuracy requirements to ensure that the alternative solution can still meet the accuracy and efficiency requirements of the back plate 7 for winding and pushing.

[0043] The method for separating and winding backsheets using the scrap component backsheet winding device of this embodiment is as follows: Figures 7 to 9 As shown, the specific steps include:

[0044] Step S1: Hot knife separation of back plate

[0045] The single-glass module is placed face down on the worktable. The hot knife assembly is started, and the hot knife moves along the preset trajectory to heat and peel off the back plate 7. The peeled back plate 7 enters the take-up rod gap along the direction of the hot knife guide movement.

[0046] Step S2: Backplate synchronous winding

[0047] After the front end of the backplate 7 enters the gap of the take-up bar, the servo motor starts, and the take-up bar rotates at a preset speed, synchronizing the movement speed of the hot knife in real time, until the backplate 7 is completely peeled off and rolled into a roll film with a diameter of 100-300mm (automatically adjusted according to the length of the backplate 7).

[0048] Step S3: Roll film pushing and transfer

[0049] The winding completion signal triggers the linear module 51, the slider drives the push plate 53 to move behind the winding rod, and the cylinder 52 extends to make the push plate 53 fit against the end face of the film.

[0050] The linear module 51 moves to the next process conveyor line at a speed of 200 mm / s. After reaching the position sensor, the cylinder 52 retracts, the pusher plate 53 disengages from the film roll, and the film roll falls into the conveyor line, completing the pushing process.

[0051] In one specific embodiment, the matching relationship between the rotational speed of the take-up rod and the moving speed of the hot knife is as follows: when the hot knife speed is 100 mm / s, the linear speed of the take-up rod is synchronously 100 mm / s.

[0052] The waste component backsheet winding device provided in the above embodiments has significant advantages over existing technologies. Firstly, it achieves full-process automation, seamlessly connecting the three stages of hot knife peeling, backsheet winding, and film pushing without manual intervention, greatly improving processing efficiency. The processing time for a single component backsheet is reduced to 15-20 seconds, a 300% improvement compared to manual operation. Secondly, it features precise synchronous control, with the winding speed matched to the hot knife speed in real time. The winding motor's speed ranges from 0 to 200 rpm, and its speed is matched to the blade's movement speed in real time through the control system. When the hot knife speed is 100 mm / s, the linear speed of the winding rod is synchronously 100 mm / s. Simultaneously, the control system ensures that the backsheet winding tension remains constant within the range of 5-10 N through synchronous control logic, effectively preventing tensile breakage of the backsheet due to unstable tension during winding. Furthermore, it is safe and efficient, eliminating the risk of manual contact with the high-temperature backsheet. The pusher plate adopts a flexible design, with its pushing surface connected to a flexible material, preventing damage to the film edges and thus improving the efficiency of subsequent crushing processes. Finally, the device interface is standardized, allowing it to communicate and link with upstream hot knife equipment and downstream crushing equipment via PLC to build a fully automated production line for processing scrapped components. This achieves the integration of the production line and promotes the automation development of the photovoltaic module recycling and processing field.

[0053] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "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 utility model 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 utility model.

[0054] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A backplate winding device for scrapped components, comprising a feeding conveyor platform (1), a discharging conveyor platform (6), and a hot knife separation mechanism (3) located between the two, characterized in that, The feeding conveying platform (6) is equipped with a synchronous winding mechanism (4) and a linear pushing mechanism (5); the synchronous winding mechanism (4) includes a winding motor (43) and two winding rods that are driven to the motor shaft of the winding motor (43). The two winding rods are arranged in parallel and symmetrically distributed on both sides of the motor shaft. A gap is formed between the two winding rods to accommodate the back plate (7) entering. The winding motor (43) drives the two winding rods to rotate around the center of the line connecting them, so as to accommodate the back plate (7) entering the gap. The winding is performed; the linear push mechanism (5) includes a linear module (51), a cylinder (52) and a push plate (53). The linear module (51) is arranged in parallel behind the two winding rods. The cylinder (52) is fixed on the slider of the linear module (51). The telescopic end of the cylinder (52) is equipped with a flexible push plate (53); the outlet end of the hot knife separation mechanism (3) is provided with a guide module (32) for guiding the back plate (7) into the gap of the synchronous winding mechanism (4).

2. The scrap component backsheet winding device of claim 1, wherein, The gap between the two winding rods is 5-10mm.

3. The scrap component backsheet winding device of claim 1, wherein, The linear module (51) has a stroke of 1500mm and a positioning accuracy of ±0.1mm.

4. The scrap component backsheet winding device of claim 1, wherein, The pusher plate (53) is arc-shaped, and its pusher surface is connected to a flexible material to prevent the edge of the roll film from breaking.

5. The scrap component backsheet winding device of claim 1, wherein, The hot knife separation mechanism (3) includes a knife head (31), which integrates a heating module with a temperature range of 0 to 300°C.

6. The scrap component backsheet winding device of claim 5, wherein, It also includes a control system, which integrates a PLC and a human-machine interface to receive the cutting head (31) moving speed signal and the winding rod speed signal, and to coordinate the movement of the cutting head (31), the winding rod speed and the action of the linear module (51).

7. The scrap component backsheet winding device of claim 6, wherein, The speed range of the winding motor (43) is 0 to 200 rpm, and its speed is matched in real time with the moving speed of the cutter head (31) through the control system.

8. The scrap component backsheet winding device of claim 7, wherein, The control system ensures that the backplate winding tension remains constant within the range of 5 to 10 N through synchronous control logic.

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