A production apparatus for photovoltaic cables

Abstract

This invention relates to the field of photovoltaic cable manufacturing technology, specifically to a production device for photovoltaic cables, comprising a housing with outlet holes and several inlet holes on the side wall of the housing, and a take-up assembly and a pay-off assembly outside the housing; a fixed cylinder is fixedly connected inside the housing, and a rotating cylinder is sleeved on the outside of the fixed cylinder, with several wire-passing grooves on the side wall of the rotating cylinder; a first drive assembly is also provided inside the housing, and the first drive assembly is signal-connected to an intelligent system; a traction assembly is provided inside the rotating cylinder, and a limiting assembly is provided inside the fixed cylinder; a disc is fixedly connected to the rotating cylinder, and several wire-passing holes are provided on the disc, each wire-passing hole having a detection groove, and a detection block is slidably connected in each detection groove, with each detection block equipped with a pressure sensor. This invention, by designing a component capable of pre-paying wire to assist in pay-off, and combining it with a stranding force acquisition and analysis system, achieves control over pay-off tension and stranding force, improves the final conductivity of the conductor, and improves the overall quality of the produced cable.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic cable manufacturing technology, and more specifically to a production apparatus for photovoltaic cables. Background Technology

[0002] Photovoltaic cables are key components connecting solar panels to power systems, responsible for transmitting the electrical energy generated by the solar panels. In a solar power generation system, the performance of photovoltaic cables directly affects the efficiency and stability of the entire system. Therefore, producing high-quality photovoltaic cables is crucial to ensuring the normal operation of a solar power generation system.

[0003] The production of photovoltaic cables is generally accomplished through multiple functional devices, including wire drawing machines, stranding machines, insulation extruders, wrapping machines, and sheathing extruders. In the production process of photovoltaic cables, the stranding machine is a key piece of equipment connecting the wire drawing machine and subsequent insulation and sheathing processes, and its importance is self-evident. The stranding machine needs to ensure that each copper wire maintains uniform tension and appropriate stranding force during the stranding process to ensure that the stranded conductor has a uniform resistance distribution and good mechanical strength. In addition, the stranding machine also needs to precisely control the stranding pitch, which directly affects the bending performance and electromagnetic compatibility of the cable.

[0004] In actual production, due to the inherent dangers of the stranding process, it is difficult to manually intervene. The stranding machine may damage the conductor wires due to excessive unwinding tension and stranding force. Excessive unwinding tension can cause the copper wires to be overstretched before stranding, resulting in plastic deformation or breakage. This not only reduces the conductor's conductivity but may also affect the overall mechanical strength of the cable. Therefore, it is necessary to develop a device for the production of photovoltaic cables that can detect and control unwinding tension and stranding force. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a production apparatus for photovoltaic cables. By designing components capable of pre-laying to assist in the laying process, and combining this with a stranding force acquisition and analysis system, the apparatus achieves control over the laying tension and stranding force, thereby improving the final conductivity of the conductor and enhancing the overall quality of the produced cables.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A production device for photovoltaic cables includes a box body, with an outlet hole and several inlet holes on the side wall of the box body. The outlet hole and several inlet holes are respectively located on the two side walls of the box body. A take-up assembly for receiving several stranded conductor wires is provided on the side of the box body near the outlet hole, and a release assembly for releasing wires into the box body is provided on the side of the box body near the inlet hole.

[0007] A fixed cylinder is fixedly connected to the side of the housing near the inlet hole. A rotating cylinder is sleeved on the outside of the fixed cylinder. The rotating cylinder is rotatably connected to the fixed cylinder. Several wire-passing grooves corresponding to the wire-passing holes are opened on the side wall of the rotating cylinder. The housing is also equipped with a first drive assembly for driving the rotating cylinder to rotate. The first drive assembly is signal-connected to an intelligent system. The rotating cylinder is equipped with a traction assembly for providing auxiliary pulling force to pull the conductor wire. The traction assembly can slide back and forth along the extension direction of the conductor wire to pull the conductor wire. The fixed cylinder is equipped with a limiting assembly fixedly connected to the side wall of the housing. When the rotating cylinder drives the traction assembly to rotate, the limiting effect of the limiting assembly drives the traction assembly to slide back and forth.

[0008] A disc is fixedly connected to the end of the rotating drum away from the inner wall of the box. Several wire-passing holes with corresponding wire inlets are opened on the circumferential direction of the disc. Detection grooves are opened on the inner wall of the wire-passing holes near the center of the disc. Detection blocks are slidably connected in the detection grooves. Pressure sensors are fixedly connected to the bottom of the detection blocks and to the bottom wall of the detection groove. Several pressure sensors are connected to the intelligent system signal.

[0009] The technical principle of the above scheme is as follows: The first drive component is connected to the intelligent system via signal. Through the control of the intelligent system, the rotation speed and direction of the drum are precisely adjusted. When the drum rotates, it drives the traction component to rotate together. At the same time, the limiting component limits the traction component, causing it to reciprocate along the conductor wire extension direction within the drum, thereby pulling the conductor wire for stranding. The traction component can reciprocate along the conductor wire extension direction to provide auxiliary tension for wire feeding. During the process, several pressure sensors are connected to the intelligent system via signal to monitor the pressure on the conductor wire during stranding in real time. Based on this information, the intelligent system can precisely control the working status of the first drive component, the wire feeding component, and the wire take-up component to achieve optimal stranding effect and production efficiency.

[0010] The above approach has the following beneficial effects:

[0011] 1. This solution uses pressure sensors to collect pressure data from each wire guide hole in real time. The intelligent system can then make precise and intelligent adjustments to the stranding process based on this data. When an abnormal pressure is detected, the intelligent system can respond quickly and adjust the stranding speed or tension, thereby effectively avoiding the risk of the conductor wire breaking due to excessive force. This not only improves the stability of the production process but also significantly reduces the scrap rate and production costs, helps maintain the tension and stability of the conductor wire, and ensures the quality of stranding.

[0012] 2. This solution features a uniquely designed traction component that clamps and displaces the conductor wire through reciprocating sliding displacement. This not only helps maintain the conductor wire's stable position but also effectively reduces tension during the unwinding process. As the drum rotates, the traction component periodically clamps and releases the conductor wire. This periodic clamping and releasing effectively reduces tension fluctuations on the conductor wire during unwinding, further minimizing damage caused by unwinding tension. Furthermore, the stretching effect of the traction component creates a pre-unwinding effect, which alleviates tension during unwinding to some extent, making the stranding process smoother and improving stranding safety.

[0013] 3. This solution fully utilizes the driving force of the stranded wire, namely the power of the first drive component, to achieve the sliding drive of the traction component. This design allows the conductor wire feeding assistance and stranding to proceed synchronously without the need for an additional power source. Synchronizing the feeding assistance and stranding steps not only improves production efficiency but also simplifies the production process. Furthermore, precise control of the rotational speed and power of the first drive component enables precise adjustment of the stranding speed and tension, thereby meeting the needs of different conductor wire materials and production requirements.

[0014] Furthermore, a turntable is provided on the outer side wall of the enclosure near the inlet hole. The turntable is rotatably connected to the side wall of the enclosure. The inlet holes are all circumferentially opened with the center of the turntable as the center. The side wall of the enclosure is also provided with annular grooves corresponding to the rotation trajectory of the inlet holes.

[0015] Beneficial effects: By rotating the turntable, the position of the wire inlet hole can be easily adjusted to adapt to different working environments and stranding requirements without moving the entire device, enhancing ease of use and flexibility. Furthermore, traditional fixed-position wire inlets may experience wear and tear due to prolonged use and frequent conductor insertion and removal, potentially leading to malfunctions. The turntable and annular groove design disperses this wear, extending the device's lifespan and reducing downtime caused by wire inlet problems.

[0016] Furthermore, the wire feeding assembly includes several support frames, each of which is fixedly connected to the position of the corresponding wire inlet hole on the turntable, and each support frame can be detachably connected to a wire feeding drum for winding the conductor wire to be twisted.

[0017] Beneficial effects: By winding the conductor wire to be twisted onto the pay-off spool, the spool automatically rotates to release the required conductor wire length when the conductor wire is subjected to an inward pulling force along the spool. This achieves automated wire feeding, reduces manual intervention, and improves production efficiency. Furthermore, workers can easily replace or replenish the conductor wire to be twisted by removing the pay-off spool, connecting new conductor wire, and reinstalling the spool, reducing operational difficulty and costs, and further improving work efficiency.

[0018] Furthermore, the take-up assembly includes a take-up base, which is fixedly connected to the bottom of the outer wall of the housing near the outlet hole. A take-up drum for winding several stranded conductor wires is rotatably connected to the top of the take-up base. A second drive assembly for driving the take-up drum to rotate is provided inside the take-up base. The second drive assembly is connected to the intelligent system signal.

[0019] Beneficial effects: By controlling the rotation of the take-up drum through an intelligent system, the winding of stranded conductors is automated and intelligent, improving production efficiency and reducing reliance on manual operation, thus lowering the possibility of human error. Furthermore, the signal connection of the intelligent system allows the second drive component to precisely adjust the rotation speed and force of the take-up drum based on parameters such as the material, diameter, and length of the stranded conductors, as well as the actual conditions during production, ensuring that the stranded conductors are evenly and tightly wound onto the take-up drum.

[0020] Furthermore, the length of the rotating drum is greater than the length of the fixed drum. The traction assembly includes a traction ring that is slidably connected to the inner wall of the rotating drum. The traction ring has several wire clamping grooves corresponding to the wire passage grooves on the side near the rotating drum. Springs are fixedly connected to both sides of the inner wall of the wire clamping grooves. Elastic blocks are fixedly connected to the ends of the springs away from the wire clamping grooves. The two elastic blocks are in contact with each other. A release block fixed to the disc is provided in each wire passage groove. The release block is located in the movement trajectory of the elastic block.

[0021] Beneficial effects: The reciprocating sliding displacement of the traction ring and the periodic clamping and releasing action of the elastic block effectively assist in stretching and guiding the conductor wire, helping to maintain the stable position of the conductor wire during the stranding process and, to some extent, offsetting tension fluctuations caused by the stranding action. Simultaneously, through precise control of the first drive component by the intelligent system, the rotation speed of the drum can be adjusted, thereby further controlling the tension and stranding tightness during the stranding process, which helps improve the production efficiency and quality of photovoltaic cables and reduce production costs.

[0022] Furthermore, the limiting assembly includes a limiting rod fixedly connected to the inner wall of the box. The limiting rod is located inside the fixed cylinder. A curved rod is fixedly connected to the end of the limiting rod away from the inner wall of the box. The height of the end of the curved rod away from the limiting rod is greater than the height of the end near the limiting rod. A collar is rotatably connected to the curved rod. A sliding rod is hinged to the side wall of the collar. The end of the sliding rod away from the collar is spherically hinged to the inner wall of the traction ring.

[0023] Beneficial effects: The connection between the limiting rod and the crank rod, combined with the rotation of the drum as the driving force source, allows the collar and the slide rod to adjust their positions naturally with the rotation of the drum, providing a smooth guide path for the traction ring and realizing the left and right displacement required after clamping the conductor wire.

[0024] Furthermore, a cable rail is fixedly connected to the inner side wall of the box at the outlet hole. A hollow cable ring is fixedly connected to the end of the cable rail away from the outlet hole. Several conductor wires extending through the cable hole are all bundled and pass through the hollow part of the cable ring to the outlet hole.

[0025] Beneficial effects: After stranding, all conductors passing through the wire guide holes are bundled together and pass through the hollow part of the cable bundle ring before extending to the exit hole. This keeps the stranded conductors neat and orderly, and also avoids crossing, tangling, and wear during the exit process, thus protecting the integrity and electrical performance of the stranded conductors. The design of the cable bundle rail and cable bundle ring simplifies the exit process of the stranded conductors, allowing workers to find and organize them more quickly, reducing operation time and labor costs, and improving production efficiency.

[0026] Furthermore, the curved rod includes a rod body, with an electric telescopic rod fixedly connected to the top of the rod body. The electric telescopic rod is connected to the intelligent system via signal, and a collar is fitted around the outside of the output end of the electric telescopic rod.

[0027] Beneficial effects: Since reducing the tension of the wire is crucial for protecting the conductor from excessive stretching and potential damage, especially when dealing with thin or fragile conductors, the telescopic function of the electric telescopic rod causes the displacement starting point of the traction ring to shift to the left when the electric telescopic rod extends. This advances the contact and disengagement of the two elastic blocks, shortening the distance the two elastic blocks pull the conductor to the left. The tension on the conductor is effectively reduced, which in turn increases the length of the stranded wire and increases the efficiency of the stranding.

[0028] Furthermore, the intelligent system includes a preset module, a data acquisition module, a processing module, and a driving module;

[0029] The preset module is used by the user to input the material of the conductor wire to be twisted;

[0030] The data acquisition module is used to acquire pressure data from several through holes via several pressure sensors;

[0031] The processing module is used to calculate the anti-stretching stress of several conductors to be stranded based on the input conductor material, and then compare the anti-stretching stress with the pressure data collected by the acquisition module. Based on the data difference, it is converted into a drive signal and transmitted to the drive module.

[0032] The drive module is used to drive and control the electric telescopic rod, the first drive assembly, and the second drive assembly using the drive signals transmitted by the root processing module.

[0033] Beneficial Effects: The preset modules allow for personalized settings and adjustments to the stranding device based on different conductor wire materials, helping to meet diverse customer needs and enhance product market competitiveness. The data acquisition module reflects the stress on the conductor wire during the stranding process, while the processing module compares this pressure data with preset anti-stretching stresses, enabling real-time monitoring and feedback of the stranding process. This facilitates the timely detection and resolution of potential production problems, ensuring product quality and stability. The entire intelligent system design achieves automation and intelligence. Users only need to input the conductor wire material through the preset modules, and the system can automatically complete the subsequent stranding process without manual intervention, improving production efficiency while reducing operational difficulty and costs.

[0034] Furthermore, in the processing module, the minimum anti-twisting stress is calculated based on the input conductor wire materials. The minimum anti-twisting stress is used as the pressure threshold. When the pressure data collected by any pressure sensor is greater than the pressure threshold, the pressure difference is calculated. Then, the pressure difference is converted into the drive power data that the first drive component and the second drive component need to reduce, as well as the elongation of the electric telescopic rod, and the drive data is transmitted to the drive module.

[0035] Beneficial effects: By accurately calculating the minimum anti-stretching stress of the conductor wire material and using it as a pressure threshold, the system can monitor and respond to the stress on the conductor wire during the stranding process in real time. Once the pressure exceeds the threshold, the system immediately takes measures, such as reducing the drive power and adjusting the extension of the electric telescopic rod, thereby effectively preventing damage to the conductor wire due to excessive stress. Simultaneously, it optimizes the performance of the stranding equipment; that is, the synchronization of the wire feeding assistance strength and the stranding strength can be adjusted by extending and shortening the electric telescopic rod to adapt to all...

[0036] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the photovoltaic cable production apparatus of the present invention;

[0038] Figure 2 This is an enlarged view of the wire feeding assembly of an embodiment of the photovoltaic cable production apparatus of the present invention;

[0039] Figure 3 This is a front cross-sectional view of the take-up assembly of an embodiment of the photovoltaic cable production apparatus of the present invention.

[0040] Figure 4 This is a schematic diagram of the internal layout of an embodiment of the photovoltaic cable production apparatus of the present invention;

[0041] Figure 5 This is a side sectional view of the housing in an embodiment of the photovoltaic cable production apparatus of the present invention;

[0042] Figure 6 This is an enlarged view of the wire-passing hole in an embodiment of the photovoltaic cable production apparatus of the present invention;

[0043] Figure 7 This is a schematic diagram showing the connection between the traction component and the limiting component in an embodiment of the photovoltaic cable production apparatus of the present invention;

[0044] Figure 8 This is an isometric sectional view of the detachment block in an embodiment of the photovoltaic cable production apparatus of the present invention.

[0045] The reference numerals in the accompanying drawings of the instruction manual include: 1. Housing; 2. Outlet hole; 3. Inlet hole; 4. Fixing cylinder; 5. Rotary cylinder; 6. Cable guide groove; 7. First drive assembly; 8. Disc; 9. Cable guide hole; 10. Detection groove; 11. Detection block; 12. Pressure sensor; 13. Turntable; 14. Support frame; 15. Cable release drum; 16. Cable take-up seat; 17. Cable take-up drum; 18. Second drive assembly; 19. Traction ring; 20. Cable clamping groove; 21. Spring; 22. Elastic block; 23. Release block; 24. Limiting rod; 25. Curved rod; 2501. Rod body; 2502. Electric telescopic rod; 26. Collar; 27. Sliding rod; 28. Cable binding rail; 29. ​​Cable binding ring. Detailed Implementation

[0046] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] The following detailed description illustrates the specific implementation method:

[0050] Example 1:

[0051] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown: A production apparatus for photovoltaic cables, including a housing 1, as detailed in the attached figure. Figure 1 and Figure 2 As shown, a turntable 13 is rotatably connected to the right side wall of the housing 1 via a bearing. Several wire inlet holes 3 are circumferentially opened on the surface of the turntable 13. Correspondingly, an annular groove with the rotation trajectory of the wire inlet holes 3 is also opened on the right side wall of the housing 1, so that the conductor wire will not get tangled when it passes through the wire inlet holes 3 into the housing 1.

[0052] Taking one of the inlet holes, number 3, as an example, specifically... Figure 2 As shown, the surface of the turntable 13 is welded with several support frames 14 corresponding to the wire inlet holes 3. Each support frame 14 corresponds to one wire inlet hole. Each support frame 14 includes support plates symmetrically arranged along the wire inlet holes 3. A wire feeding drum 15 is provided between two support plates. Both ends of the wire feeding drum 15 are detachably and rotatably connected to the two support plates on the side close to each other through bearings. This design allows the wire feeding drum 15 and the two support plates to rotate relative to each other, so that the twisted conductor wire is wound on the wire feeding drum 15 and extends into the housing 1 through the wire inlet hole 3. During the twisting process, when the conductor wire is subjected to a pulling force inward along the housing 1, this pulling force will be converted into the rotational power of the wire feeding drum 15, thereby automatically releasing the required conductor wire length, realizing the automated wire feeding process, avoiding the tension fluctuation caused by the inaccurate manual control of the wire feeding speed in the traditional twisting process, and effectively reducing the risk of breaking the conductor wire due to excessive tension. In addition, this design allows workers to replace and replenish the conductors to be twisted by removing the reel 15, connecting the subsequent conductors to the untwisted conductors, and then installing a new reel 15. This not only improves work efficiency but also reduces operational difficulty and cost.

[0053] A take-up seat 16 is welded to the bottom of the left outer wall of the housing 1. A take-up drum 17 for winding several stranded conductors is rotatably connected to the top of the take-up seat 16 via a bearing. Figure 3 As shown, the take-up holder 16 is equipped with a second drive assembly 18 for driving the take-up drum 17 to rotate. The second drive assembly 18 includes a second servo motor, the output shaft of which is coaxially and fixedly connected to the take-up drum 17 via a coupling. The rotation of the second servo motor drives the take-up drum 17 to rotate, and the stranded photovoltaic cable core is wound around the side wall of the take-up drum 17. The rotating take-up drum 17 provides the necessary power and tension to ensure that the stranded photovoltaic cable core can be tightly and orderly wound around its side wall. As the take-up drum 17 continues to rotate, the photovoltaic cable core is gradually wound in, forming a neat and tight coil. The rotation of the take-up drum 17 is the main driving force source for pulling all conductor wires into the housing 1.

[0054] After several conductor wires to be twisted enter the housing 1 through the inlet hole 3, firstly, specifically as follows: Figure 4 As shown, and Figure 5 As a side sectional view demonstrating the internal structure, a fixed cylinder 4 is welded to the right side of the housing 1. A rotating cylinder 5 is fitted around the outside of the fixed cylinder 4. The right end of the rotating cylinder 5 is rotatably connected to the side wall of the housing 1 via a bearing. The thickness of the rotating cylinder 5 is greater than that of the fixed cylinder 4. Several wire-passing grooves 6 are formed in the wall of the rotating cylinder 5, connecting to the wire inlet holes 3. The position and number of the wire-passing grooves 6 correspond one-to-one with the wire-passing holes 9. A first drive assembly 7 is also fixedly connected to the right side wall of the housing 1 via bolts. The first drive assembly 7 includes a first servo motor. The output shaft of the first servo motor is fixedly connected to a rotating rod via a coupling. A gear is welded to the left end of the rotating rod. The outer wall surface of the drum 5 is provided with toothed grooves that mesh with the gear. When the first servo motor drives the gear to rotate, the rotation of the gear is transmitted to the rotating drum 5 through the toothed grooves, causing the rotating drum 5 to rotate. The conductor wire to be twisted extends into the wire guide groove 6 through the wire inlet hole 3. Combined with the design of the support frame 14 and the wire feeding drum 15 corresponding to the wire inlet hole 3, under the continuous rotation of the rotating drum 5, each conductor wire to be twisted is guided through the corresponding wire guide groove 6 in an orderly manner, keeping the conductor wire taut. This also effectively avoids heat accumulation caused by mutual entanglement or friction, reducing the probability of conductor wire damage due to twisting or excessive wear. In addition, the precise design and layout of the wire guide groove 6 ensures that the travel path of each wire is precisely controlled, reducing the additional tension caused by chaotic paths, which is beneficial to maintaining the integrity of the conductor wire and the electrical performance of the photovoltaic cable after forming.

[0055] The first servo motor is connected to an intelligent system. By controlling the rotation power of the first servo motor through the intelligent system, the rotation speed of the first servo motor can be controlled, thereby controlling the rotation speed of the drum 5. This lays the foundation for adjusting the twisting tightness during the twisting process and achieves a stable, efficient and controllable twisting process.

[0056] The length of the rotating cylinder 5 is greater than the length of the fixed cylinder 4. In the portion where the rotating cylinder 5 and the fixed cylinder 4 do not overlap, a traction ring 19 is slidably connected to the inner wall of the rotating cylinder 5. Specifically, the slidable connection involves a groove on the inner wall of the rotating cylinder 5, and a corresponding slider is welded to the outer wall of the traction ring 19. The slider and the groove are slidably connected by ball bearings. For details... Figure 7 As Figure 4 Enlarged disassembly diagram of transfer cylinder 5, with Figure 4 Described from the angle shown, a limiting rod 24 located inside the fixed cylinder 4 is welded to the side wall of the housing 1. A curved rod 25 is welded to the left end of the limiting rod 24. The height of the left end of the curved rod 25 is greater than that of the right end, causing the curved rod 25 to be in an inclined state. A collar 26 is rotatably connected to the curved rod 25 via a bearing. The collar 26 can only rotate relative to the curved rod 25 and cannot slide on the curved rod 25. A sliding rod 27 is hinged to the side wall of the collar 26. The end of the sliding rod 27 away from the collar 26 is hinged to the inner wall of the traction ring 19 via a spherical hinge. When the rotating cylinder 5 rotates, the traction ring 19 will also rotate synchronously. Because the limiting rod 24 and the housing... The fixed limit on the side wall means that the curved rod 25 welded to the limit rod 24 will not rotate. However, due to the hinge between the slide rod 27 and the collar 26, and the ball joint connection between the slide rod 27 and the traction ring 19, during the rotation of the rotating drum 5, the circular motion is centered on the hinge point between the slide rod 27 and the collar 26, with the length of the slide rod 27 as the radius and the ball joint connection between the slide rod 27 and the traction ring 19 as the circumference point. Combined with the inclined design of the curved rod 25, this circular motion is partially transformed into the left and right sliding of the traction ring 19 within the rotating drum 5. Ultimately, this is manifested as the reciprocating left and right sliding displacement of the traction ring 19 during the rotation of the rotating drum 5.

[0057] Several wire clamping grooves 20 are provided on the outer side of the traction ring 19. The positions of the wire clamping grooves 20 correspond one-to-one with the positions of the wire passage grooves 6. Taking one of the wire clamping grooves 20 as an example, Figure 5 , Figure 7 and Figure 8As shown, springs 21 are provided on both sides of the inner wall of the wire clamping groove 20. The two springs 21 are arranged symmetrically. The bottom end of each spring 21 is welded to the inner wall of the wire clamping groove 20, and an elastic block 22 is fused to the top of each spring 21. The two elastic blocks 22 are in close contact with each other. A release block 23 located in the movement trajectory of the elastic block 22 is welded inside the wire passage groove 6. During the process of the traction ring 19 sliding to the left, the two elastic blocks 22 will contact the release block 23 as the traction ring 19 slides. The two in close contact elastic blocks 22 will be separated by the force of the release block 23, causing both springs 21 to be compressed, thus losing the clamping effect on the conductor wire. When the traction ring 19 slides to the right, the compressed springs 21 on both sides begin to gradually return to their original state, pushing the elastic blocks 22 closer to each other until they are Once the wires are tightly bonded again, the restoring force of the elastic block 22 will clamp the conductor wire located in the clamping groove 20 again. Since the reciprocating motion of the traction ring 19 is continuous and periodic, the elastic block 22 in the clamping groove 20 will also undergo a periodic clamping and releasing process. Ultimately, it will move a distance to the right and then release, and move a distance to the left and then clamp again. The driving force of the stranding action is used to assist in stretching the conductor wire to be stranded (the unwinding of the conductor wire is mainly driven by the take-up end). Through the periodic clamping and releasing process, the risk of the conductor wire breaking due to excessive tension during stranding can be effectively reduced. This ensures that the conductor wire maintains the necessary tension to form a tight stranded structure without being damaged by excessive tension. Furthermore, the clamping effect design not only helps maintain the stable position of the conductor wire during stranding but also, to a certain extent, counteracts the tension fluctuations caused by the stranding action, further reducing the possibility of the conductor wire breaking.

[0058] In particular, such as Figure 6 As shown, with Figure 4 Described from the angle shown, a disc 8 is welded to the left end of the rotating drum 5. Several wire-passing holes 9 corresponding to the positions of the wire inlet slots are opened on the disc 8 along its circumference. Several detection slots 10 corresponding to the wire-passing holes 9 are also opened on the disc 8. The detection slots 10 are all located on the side of the corresponding wire-passing hole 9 near the center of the disc 8. Detection blocks 11 are slidably connected in each detection slot 10. Pressure sensors 12 are fixedly connected to the bottom wall of the detection slot 10 by rivets at the bottom of each detection block 11. Several pressure sensors 12 are connected to the intelligent system signal. The pressure of several conductor wires on the wall of the wire-passing hole 9 is detected by the pressure sensors 12, and the data is transmitted to the intelligent system to calculate the pressure and determine the twisting force of the conductor wires.

[0059] The device enables the take-up operation after twisting, specifically as follows: Figure 4As shown in the angle description, a cable-binding rail 28 corresponding to the position of the cable outlet hole 2 is welded to the inner wall of the left side of the housing 1. A hollow cable-binding ring 29 is welded to the right end of the cable-binding rail 28. Several conductor wires extending through the cable outlet hole 9 are all bundled and pass through the hollow part of the cable-binding ring 29 to the cable outlet hole 2. After the twisting process is completed, several conductor wires will be guided by the orderly cable-binding rail 28 and the cable-binding ring 29 to start the winding operation. The design of the cable-binding rail 28 provides a stable movement path for the conductor wires and applies a certain guiding and supporting effect to the conductor wires, which helps to ensure that the conductor wires maintain a neat arrangement during the winding process and avoid crossing, tangling or excessive twisting.

[0060] Example 2:

[0061] like Figure 7 As shown, the difference from Embodiment 1 is that the curved rod 25 includes a rod body 2501 and an electric telescopic rod 2502. The bottom end of the electric telescopic rod 2502 is welded to the top of the rod body 2501. The electric telescopic rod 2502 has the function of extending and shortening the output end. When the electric telescopic rod 2502 extends, the displacement starting point of the traction ring 19 will shift to the left, so that the timing of the two elastic blocks 22 contacting and disengaging from the block 23 is advanced, shortening the distance that the two elastic blocks 22 clamp the conductor wire and pull it to the left. The tension on the conductor wire is effectively reduced. Conversely, when the electric telescopic rod 2502 shortens, the displacement starting point of the traction ring 19 will shift to the right, increasing the convergence of the two elastic blocks 22 clamping the conductor wire and pulling it to the left, increasing the tension on the conductor wire, but increasing the length of the stranded wire, thereby increasing the stranding efficiency.

[0062] Example 3:

[0063] The difference from Embodiment 2 is that the intelligent system includes a preset module, a data acquisition module, a processing module, and a driving module;

[0064] Users input the material information of the conductor wire to be twisted through the preset module. The preset module accepts the user's input and performs preliminary processing and storage of this information to provide basic data for subsequent calculations and control. This ensures that the system can perform customized twisting and take-up operations for conductor wires of different materials, thereby meeting diverse production needs.

[0065] The acquisition module monitors the pressure data of several wire holes 9 in real time through several pressure sensors 12. The pressure sensors 12 can capture the compression and tension of the conductor wire during the stranding process. The acquisition module transmits this real-time data to the processing module, providing a reliable basis for the dynamic adjustment of the intelligent system. Through continuous monitoring and data analysis, it helps to ensure the stability and safety of the stranding process.

[0066] The processing module calculates the minimum anti-twisting stress using a built-in algorithm based on the conductor material information provided by the preset module. This stress value serves as a pressure threshold to determine whether there is an overpressure risk during the stranding process. When the pressure data collected by any pressure sensor 12 exceeds this threshold, the processing module immediately calculates the pressure difference and, based on the magnitude of the difference, converts it into the amount of extension of the electric telescopic rod 2502 and the driving power of the first drive assembly 7 and the second drive assembly 18. This aims to maintain the pressure within a safe range during the stranding process while optimizing the stranding effect and the take-up quality.

[0067] The drive module receives the drive signal transmitted by the processing module and performs precise drive control on the electric telescopic rod 2502, the first drive assembly 7 and the second drive assembly 18 accordingly, ensuring that the intelligent system can quickly adapt to various changes in the stranding process and maintain the stability and continuity of production.

[0068] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A production apparatus for photovoltaic cables, comprising a housing (1), wherein the side wall of the housing (1) is provided with a wire outlet hole (2) and a plurality of wire inlet holes (3), characterized in that, The outlet hole (2) and several inlet holes (3) are located on the two side walls of the box (1). The box (1) is provided with a take-up assembly for storing several stranded conductor wires on the side near the outlet hole (2). The box (1) is provided with a release assembly for releasing conductor wires into the box (1) on the side near the inlet hole (3). A fixed cylinder (4) is fixedly connected to the side of the housing (1) near the inlet hole (3). A rotating cylinder (5) is fitted on the outside of the fixed cylinder (4) and rotatably connected to the fixed cylinder (4). Several wire grooves (6) corresponding to the wire holes (9) are opened on the side wall of the rotating cylinder (5). The housing (1) is also provided with a first drive assembly (7) for driving the rotating cylinder (5) to rotate. The first drive assembly (7) is connected to an intelligent system. The rotating cylinder (5) is provided with a traction assembly for providing auxiliary pulling force to pull the conductor wire. The traction assembly can slide back and forth along the extension direction of the conductor wire to pull the conductor wire forward. The traction assembly includes a traction ring (19) that is slidably connected to the inner wall of the rotating cylinder (5). The fixed cylinder (4) is provided with a fixed connection to the side wall of the housing (1). The limiting component includes a limiting rod (24) fixedly connected to the inner wall of the box (1). The limiting rod (24) is located inside the fixed cylinder (4). A curved rod (25) is fixedly connected to the end of the limiting rod (24) away from the inner wall of the box (1). The height of the end of the curved rod (25) away from the limiting rod (24) is greater than the height of the end close to the limiting rod (24). A collar (26) is rotatably connected to the curved rod (25). A sliding rod (27) is hinged to the side wall of the collar (26). The end of the sliding rod (27) away from the collar (26) is spherically hinged to the inner wall of the traction ring (19). When the rotating cylinder (5) drives the traction component to rotate, the limiting action of the limiting rod (24) drives the traction ring (19) to reciprocate sliding displacement along the radial direction of the rotating cylinder (5). A disc (8) is fixedly connected to one end of the inner wall of the rotating drum (5) away from the box (1). Several wire holes (9) corresponding to the wire inlet hole (3) are opened on the disc (8) along its circumference. Detection grooves (10) are opened on the inner wall of the wire holes (9) near the center of the disc (8). Detection blocks (11) are slidably connected in the detection grooves (10). Pressure sensors (12) are fixedly connected to the bottom wall of the detection grooves (10) at the bottom of the detection blocks (11). Several pressure sensors (12) are connected to the intelligent system signal.

2. The production apparatus for photovoltaic cables according to claim 1, characterized in that, A turntable (13) is provided on the side of the outer wall of the housing (1) near the inlet hole (3). The turntable (13) is rotatably connected to the side wall of the housing (1). Several inlet holes (3) are respectively opened on the turntable (13) with the center of the turntable (13) as the center. The side wall of the housing (1) is also provided with an annular groove corresponding to the rotation trajectory of the inlet hole (3).

3. The production apparatus for photovoltaic cables according to claim 2, characterized in that, The wire feeding assembly includes several support frames (14), each of which is fixedly connected to the turntable (13) at the position corresponding to the wire inlet hole (3). Each support frame (14) can be detachably connected to a wire feeding drum (15) for winding the conductor wire to be twisted.

4. The production apparatus for photovoltaic cables according to claim 3, characterized in that, The take-up assembly includes a take-up base (16), which is fixedly connected to the bottom of the outer wall of the housing (1) near the outlet hole (2). A take-up drum (17) for winding and twisting several conductor wires is rotatably connected to the top of the take-up base (16). A second drive assembly (18) for driving the take-up drum (17) to rotate is provided inside the take-up base (16). The second drive assembly (18) is connected to the intelligent system signal.

5. The production apparatus for photovoltaic cables according to claim 4, characterized in that, The length of the rotating drum (5) is greater than the length of the fixed drum (4). The traction assembly also includes several wire clamping grooves (20) corresponding to the wire passage grooves (6) on the side of the traction ring (19) near the rotating drum (5). Springs (21) are fixedly connected to both sides of the inner wall of the wire clamping groove (20). Elastic blocks (22) are fixedly connected to the ends of the springs (21) away from the wire clamping groove (20). The two elastic blocks (22) fit together. A release block (23) fixed to the disc (8) is provided in the wire passage groove (6). The release block (23) is located in the movement trajectory of the elastic block (22).

6. The apparatus for producing photovoltaic cables according to claim 5, characterized in that, The inner wall of the box (1) is fixedly connected to a cable rail (28) located at the outlet hole (2). A hollow cable ring (29) is fixedly connected to one end of the cable rail (28) away from the outlet hole (2). Several conductor wires extending through the wire hole (9) are all bundled and pass through the hollow part of the cable ring (29) to the outlet hole (2).

7. The apparatus for producing photovoltaic cables according to claim 6, characterized in that, The curved rod (25) includes a rod body (2501), and an electric telescopic rod (2502) is fixedly connected to the top of the rod body (2501). The electric telescopic rod (2502) is connected to the intelligent system signal, and a collar (26) is sleeved on the outside of the output end of the electric telescopic rod (2502).

8. The apparatus for producing photovoltaic cables according to claim 7, characterized in that, The intelligent system includes a preset module, a data acquisition module, a processing module, and a driver module; The preset module is used by the user to input the material of the conductor wire to be twisted; The acquisition module is used to acquire pressure data from several through holes (9) through several pressure sensors (12); The processing module is used to calculate the anti-stretching stress of several conductors to be stranded based on the input conductor material, and then compare the anti-stretching stress with the pressure data collected by the acquisition module. Based on the data difference, it is converted into a drive signal and transmitted to the drive module. The drive module is used to drive and control the electric telescopic rod (2502), the first drive assembly (7), and the second drive assembly (18) using the drive signals transmitted by the root processing module.

9. The production apparatus for photovoltaic cables according to claim 8, characterized in that, In the processing module, the minimum anti-stretching stress is calculated based on the input conductor wire materials. The minimum anti-stretching stress is used as the pressure threshold. When the pressure data collected by any pressure sensor (12) is greater than the pressure threshold, the pressure difference is calculated. Then, the pressure difference is converted into the driving power data that the first driving component (7) and the second driving component (18) need to reduce, as well as the elongation of the electric telescopic rod (2502). The driving data is then transmitted to the driving module.

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