Multifunctional laminating equipment and laminating method for photovoltaic cable production

Abstract

The application discloses a kind of multifunctional laminating equipment and laminating method for photovoltaic cable production, equipment includes laminating winding mechanism, laminating constant-temperature pressing mechanism and cable cooling mechanism connected in sequence;Laminating winding mechanism includes winding mechanism support bottom plate, two winding mechanism support rings are fixed on the top of winding mechanism support bottom plate, winding rotation drive ring is rotatably connected on winding mechanism support ring, combined film support ring is fixed on winding rotation drive ring, a plurality of unwinding rollers are rotatably connected on combined film support ring;Laminating constant-temperature pressing mechanism includes constant-temperature pressing containing cylinder shell coaxially arranged with winding mechanism support ring;The core advantage of equipment is accurate adjustment, high laminating quality, efficient cooling and high degree of automation, can adapt to various production needs;Laminating winding is flexible and accurate, with strong adaptability, supports multi-angle adjustment, flexibly adjusts the position and angle of unwinding roller, and accurately controls film winding angle.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic cable production technology, specifically to a multifunctional coating equipment and coating method for photovoltaic cable production. Background Technology

[0002] There are four main types of films commonly used for photovoltaic cable coating. Their core purpose is to adapt to harsh outdoor environments and achieve functions such as weather resistance, insulation, protection, or enhanced adhesion.

[0003] Commonly used film types include polyolefin film, fluoroplastic film, polyester film, and aluminum-plastic composite film. Polyolefin film offers high cost-effectiveness, focusing on basic insulation and weather resistance, resisting outdoor ultraviolet rays, moisture, and general chemical corrosion, and is suitable for the basic coating requirements of most conventional photovoltaic cables. Fluoroplastic film is resistant to high temperatures (120℃-200℃) and strong corrosion, making it suitable for high-temperature environments (such as near inverters and combiner boxes) or special photovoltaic scenarios with multiple chemical media, while also possessing excellent insulation properties. Polyester film has high mechanical strength, primarily enhancing the cable surface's abrasion resistance and tear resistance, while also helping to improve the insulation level. It is often used as an intermediate coating layer, connecting the conductor and the outer sheath to prevent delamination. Aluminum-plastic composite film combines moisture protection and electromagnetic interference (EMI) shielding functions, making it suitable for photovoltaic cables with high signal stability requirements (such as communication integrated photovoltaic cables), while also improving overall protective sealing. However, existing lamination equipment has relatively limited functionality and is not easily adaptable to actual production needs, requiring further improvement and optimization. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional coating equipment and coating method for photovoltaic cable production, which is precise in adjustment, has high coating quality, and can adapt to various production needs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A multifunctional coating equipment for photovoltaic cable production includes a coating and winding mechanism, a coating and constant temperature pressing mechanism, and a cable cooling mechanism connected in sequence. The film winding mechanism includes a winding mechanism support base plate. Two coaxial winding mechanism support rings with horizontally arranged axes are fixed on the top of the winding mechanism support base plate. A winding rotation drive ring coaxial with the winding mechanism support ring is rotatably connected to the winding mechanism support ring. A combined film support ring coaxial with the winding rotation drive ring is fixed on the winding rotation drive ring. Multiple unwinding rollers are rotatably connected to the combined film support ring. The film-coating constant temperature pressing mechanism includes a constant temperature pressing receiving cylinder shell arranged coaxially with the support ring of the winding mechanism. Both ends of the constant temperature pressing receiving cylinder shell have a first cable through hole that passes through its axis. A hot air conveying ring shell, which is coaxial with and hollow inside, is fixed inside the constant temperature compression container shell. Multiple hot air nozzles are provided on the inner side of the hot air conveying ring shell. The hot air conveying ring shell is provided with a hot air conveying pipe that is connected to its interior, and the hot air conveying pipe extends to the outside of the constant temperature compression receiving cylinder shell. The constant temperature compression receiving cylinder shell has a compression support ring fixed inside it, and multiple cable-coated rolling rollers are connected to the inner side of the compression support ring. The cable cooling mechanism includes a cable cooling housing arranged coaxially with the constant temperature compression housing, and both ends of the cable cooling housing have a second cable through hole that runs along its axis. The cable cooling housing has multiple cooling input pipes connected to its interior on the outside of the input end, and multiple cooling output pipes connected to its interior on the outside of the output end.

[0006] Preferably, a cable support and guide mechanism is provided inside the support ring of the winding mechanism. The cable support and guide mechanism includes two cable support and guide shafts rotatably connected to the inside of the support ring of the winding mechanism. The two cable support and guide shafts are parallel to each other and their axes are perpendicular to the axis of the support ring of the winding mechanism. A support guide roller is fixed on the cable support guide shaft and is coaxial with it. The outer side of the support guide roller has a cable adapter constraint groove extending around it.

[0007] Note: When the photovoltaic cable moves along the axis of the support ring of the winding mechanism, it is clamped in the cable adapter constraint groove between the support guide rollers. When the photovoltaic cable moves, it passively drives the cable support guide shaft to rotate.

[0008] Preferably, the unwinding roller is connected to the composite film support ring via a film deflection adjustment mechanism. The film deflection adjustment mechanism includes a deflection adjustment support seat fixed to the side of the composite film support ring, a deflection adjustment support shaft rotatably connected to the deflection adjustment support seat, an arc-shaped support plate fixed to the deflection adjustment support shaft, the side of the arc-shaped support plate away from the deflection adjustment support shaft being an outwardly convex arc surface, a deflection adjustment support slide rail with the same curvature as the arc surface of the arc-shaped support plate being fixed, a deflection adjustment slider slidably connected to the deflection adjustment support slide rail, an unwinding roller connecting seat fixed to the deflection adjustment slider, and the unwinding roller rotatably connected to the unwinding roller connecting seat.

[0009] Explanation: With the deflection of the deflection adjustment support shaft and the movement of the deflection adjustment slider, the relative position and relative deflection angle between the unwinding roller and the photovoltaic cable can be adjusted, thereby adjusting the winding angle of the film.

[0010] Preferably, the unwinding roller connecting seat is provided with a damping adjustment mechanism. The damping adjustment mechanism includes a damping adjustment support shell fixed on the unwinding roller connecting seat and arranged coaxially with the roller rotation shaft of the unwinding roller. One end of the roller rotation shaft extends into the inside of the damping adjustment support shell. A damping adjustment constraint ring coaxial with the roller is slidably connected inside the damping adjustment support shell. Multiple electromagnetic induction coils are fixed inside the damping adjustment constraint ring. The roller rotation shaft passes through the inside of the damping adjustment constraint ring. Multiple damping adjustment permanent magnets are fixed on the outside of the roller rotation shaft. The multiple damping adjustment permanent magnets are arranged circumferentially around the roller rotation shaft. The damping adjustment support cylinder shell is equipped with a damping adjustment drive rod for driving the damping adjustment constraint ring to move along its axial direction.

[0011] Note: When the unwinding roller rotates to release the film, the rotational damping of the unwinding roller is adjusted, thereby adjusting the force with which the film is wound on the photovoltaic cable.

[0012] Preferably, the cable coating rolling roller is connected to the inner side of the clamping support ring through a radial adjustment mechanism. The inner side of the clamping support ring has a plurality of radial adjustment connection holes extending radially therein. The radial adjustment mechanism includes a radial adjustment fixing cylinder coaxially fixed in the radial adjustment connection holes and with its opening facing inward. A radial adjustment sliding cylinder with its opening facing outward is slidably connected inside the radial adjustment fixing cylinder. A rolling roller connecting seat is fixed at the end of the radial adjustment sliding cylinder. The cable coating rolling roller is rotatably connected to the rolling roller connecting seat. The radial adjustment fixed cylinder is equipped with a radial adjustment drive rod for driving the radial adjustment sliding cylinder to move; The rotation axis of the cable coating rolling roller is perpendicular to the axis of the thermostatic pressing housing, and the outer side of the cable coating rolling roller has cable rolling constraint grooves arranged around its circumference.

[0013] Note: The pressure applied to the photovoltaic cable by each cable coating roller is adjusted by the radial adjustment mechanism.

[0014] Preferably, a hot air reflux mechanism is provided inside the constant temperature pressing container shell. The hot air reflux mechanism includes a hot air reflux ring shell fixed inside the constant temperature pressing container shell, and one hot air reflux ring shell is provided at each end of the hot air conveying ring shell. The inner side of the hot gas return ring shell has multiple hot gas return holes that are connected to its interior. The hot gas return ring shell is provided with a hot gas return exhaust pipe that is connected to its interior and extends to the outside of the constant temperature compression receiving shell.

[0015] Note: The hot air waste generated after heat exchange is uniformly recovered and discharged through the hot air recirculation mechanism, which prevents the hot air waste from running around in the constant temperature and compression container and affecting the temperature stability and consistency of the outer film of the photovoltaic cable.

[0016] Preferably, the constant temperature pressing container shell is provided with a film covering and repressing mechanism. The film covering and repressing mechanism includes a repressing support ring rotatably connected to the constant temperature pressing container shell and arranged coaxially with it. Multiple repressing support connecting seats are fixed inside the repressing support ring. A film covering and repressing rod is rotatably connected to the repressing support connecting seat. The film covering and repressing rod extends spirally around the axis of the repressing support ring. The section of the coated pressure bar away from the pressure support connector has a concave arc segment that adapts to the shape of the photovoltaic cable, and the concave arc segment of the coated pressure bar makes contact with the outer wall of the photovoltaic cable.

[0017] Note: The film after heat curing is smoothed using a film coating and pressing mechanism to make it more flat and uniform.

[0018] Preferably, the cross-section of the cable cooling housing gradually narrows and then expands from the input end to the output end, and multiple cooling air guide plates are fixed on the inner wall of the cable cooling housing, which are spirally extended around its axis.

[0019] Explanation: When cold air flows through the cable cooling housing, it first accelerates and then decelerates. Under the guidance of the cooling air guide plate, the cold air can rotate and move forward along the axis of the cable cooling housing.

[0020] This invention also provides a multifunctional coating method for photovoltaic cable production, based on the above-mentioned multifunctional coating equipment for photovoltaic cable production, comprising the following steps: S1. Apply a coating to the photovoltaic cable: The photovoltaic cable to be coated extends along the axis of the support ring of the winding mechanism and moves gradually under the traction of the traction mechanism; As the photovoltaic cable moves along the axis of the winding mechanism support ring, the winding rotation drive ring drives the combined film support ring to rotate together around the axis of the photovoltaic cable, gradually winding the film wound on the unwinding roller onto the outside of the photovoltaic cable. S2. Heat and cure the film on the photovoltaic cable and press it firmly: After being coated, the photovoltaic cable is inserted into the constant temperature compression housing through the first cable through hole. The film on the outside of the photovoltaic cable is pre-compressed by the cable coating roller to make the film fit the outer side of the photovoltaic cable better and avoid wrinkling of the film during subsequent heating and curing. Hot air at 80~200℃ is delivered into the hot air conveying ring through the hot air conveying pipe using an air conveyor. The hot air in the hot air conveying ring is then sprayed out from multiple hot air nozzles. The hot air blown out from the multiple hot air nozzles is then used to heat and solidify the film on the outside of the photovoltaic cable, so that the film is more stably attached and wrapped around the outer side of the photovoltaic cable. S3. Cool the photovoltaic cable after heat curing: After heat curing, the photovoltaic cable is inserted into the cable cooling housing through the second cable perforation. Cold air at 5-15°C is delivered into the cable cooling housing through the cooling input pipe using an air conveyor. The film on the outer side of the photovoltaic cable is cooled by the heat exchange effect of the cold air flowing through the cable cooling housing. The cold air after heat exchange is finally discharged from the cooling output pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects: 1. The present invention has a reasonable structural design, and its core advantages are precise adjustment, high coating quality, efficient cooling and high degree of automation, which can adapt to a variety of production needs; 2. This invention is easy to operate, flexible and precise in film winding, highly adaptable, and supports multi-angle adjustment. Through the film deflection adjustment mechanism, the position and angle of the unwinding roller can be flexibly adjusted to precisely control the film winding angle and adapt to the film winding requirements of photovoltaic cables of different specifications. 3. The winding force of the present invention is controllable and equipped with a damping adjustment mechanism. The rotation damping of the unwinding roller is adjusted in real time through the electromagnetic induction principle to avoid the film from being too loose and wrinkling or too tight and breaking, and to ensure uniform winding tension. 4. The constant temperature pressing process of the present invention has high film quality and uniform heating and curing: the multi-nozzle design of the hot air conveying ring shell, combined with constant temperature hot air, ensures that the film is heated and cured uniformly in all directions, thereby improving the film adhesion. 5. The clamping force of the present invention is adjustable. The radial adjustment mechanism can adjust the pressure of the cable coating roller synchronously or independently to adapt to cables of different diameters, while avoiding film wrinkling. 6. The design of this invention has a secondary smoothing optimization. The spiral pressing rod of the film lamination and pressing mechanism further improves the flatness of the film lamination and reduces defects through the rotational smoothing action. 7. The present invention provides efficient and energy-saving cooling, which can improve production efficiency and provide uniform cooling effect. The cable cooling housing shell has a "contraction and expansion" cross-section design, which, together with the spiral guide plate, allows cold air to rotate and pass through quickly, improving heat exchange efficiency and avoiding uneven local cooling. 8. The cooling process of this invention has high resource utilization. After the cold air is accelerated, it is concentrated on the surface of the cable, reducing ineffective heat dissipation, reducing cooling energy consumption, and at the same time, it can quickly cool down and shorten the production cycle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall layout of the present invention; Figure 2 This is a schematic diagram of the film-coating and winding mechanism of the present invention; Figure 3 This is a right view of the cable support and guide mechanism of the present invention; Figure 4This is a schematic diagram of the coating deflection adjustment mechanism of the present invention; Figure 5 This is a top view of the film deflection adjustment mechanism of the present invention; Figure 6 This is a top view of the damping adjustment mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the film-coated constant temperature pressing mechanism of the present invention; Figure 8 This is a right view of the radial adjustment mechanism of the present invention; Figure 9 This is a schematic diagram of the hot gas recirculation mechanism of the present invention; Figure 10 This is a schematic diagram of the coating and pressing mechanism of the present invention; Figure 11 This is the orientation view A of the present invention; Figure 12 This is a schematic diagram of the cable cooling mechanism of the present invention.

[0023] In the figure, 10-coating and winding mechanism, 11-winding mechanism support base plate, 12-winding mechanism support ring, 13-winding rotation drive ring, 14-combination film support ring, 15-unwinding roller, 150-roller rotation shaft, 16-cable support and guide mechanism, 161-cable support and guide shaft, 162-support and guide roller, 1620-cable adapter constraint groove, 17-coating deflection adjustment mechanism, 171-deflection adjustment support seat. 172-Deflection adjustment support shaft, 173-Arc surface support plate, 174-Deflection adjustment support slide rail, 175-Deflection adjustment slider, 176-Unwinding roller connecting seat, 18-Damping adjustment mechanism, 181-Damping adjustment support cylinder shell, 182-Damping adjustment constraint ring, 183-Electromagnetic induction coil, 184-Damping adjustment permanent magnet, 185-Damping adjustment drive rod, 20-Coating constant temperature pressing mechanism, 21-Constant temperature pressing receiving cylinder Shell, 210-First cable perforation, 22-Hot air conveying ring shell, 220-Hot air nozzle, 221-Hot air conveying pipe, 23-Pressure support ring, 24-Cable coating rolling roller, 240-Cable rolling constraint groove, 25-Radial adjustment mechanism, 250-Radial adjustment connecting hole, 251-Radial adjustment fixing cylinder, 252-Radial adjustment sliding cylinder, 253-Rolling roller connecting seat, 254-Radial adjustment drive rod, 26-Hot air return Flow mechanism, 261-Hot gas return ring shell, 262-Hot gas return flow hole, 263-Hot gas return exhaust pipe, 27-Covering and repressing mechanism, 271-Repressing support ring, 272-Repressing support connecting seat, 273-Covering and repressing rod, 30-Cable cooling mechanism, 31-Cable cooling receiving cylinder shell, 310-Second cable through hole, 311-Cooling input pipe (311), 312-Cooling output pipe, 313-Cooling air guide plate. Detailed Implementation

[0024] The following is combined Figures 1-12 The present invention will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0025] Example 1: A multi-functional coating equipment for photovoltaic cable production, such as Figure 1 As shown, it includes a film wrapping mechanism 10, a film constant temperature pressing mechanism 20 and a cable cooling mechanism 30 connected in sequence. like Figure 2 As shown, the film wrapping mechanism 10 includes a wrapping mechanism support base plate 11. Two coaxial wrapping mechanism support rings 12 with their axes arranged horizontally are fixed on the top of the wrapping mechanism support base plate 11. A wrapping mechanism rotation drive ring 13 coaxial with the wrapping mechanism support ring 12 is rotatably connected to the wrapping mechanism support ring 12. A combined film support ring 14 coaxial with the wrapping mechanism rotation drive ring 13 is fixed on the wrapping mechanism rotation drive ring 13. A plurality of unwinding rollers 15 are rotatably connected to the combined film support ring 14. The winding rotation drive ring 13 is driven by a prior art servo motor fixed on the winding mechanism support ring 12 to rotate around the axis of the winding mechanism support ring 12 via gear ring transmission; like Figure 7 As shown, the film-coating constant temperature pressing mechanism 20 includes a constant temperature pressing receiving cylinder 21 arranged coaxially with the winding mechanism support ring 12. Both ends of the constant temperature pressing receiving cylinder 21 have a first cable through hole 210 that runs through its axis. A hot air conveying ring shell 22, which is coaxial with and hollow inside, is fixed inside the constant temperature compression receiving cylinder shell 21. Multiple hot air nozzles 220 are provided on the inner side of the hot air conveying ring shell 22. The hot air conveying ring shell 22 is provided with a hot air conveying pipe 221 that communicates with its interior, and the hot air conveying pipe 221 extends to the outside of the constant temperature pressing and receiving cylinder shell 21. A compression support ring 23 coaxial with the constant temperature compression housing 21 is fixed inside the housing, and multiple cable-coated rolling rollers 24 are connected to the inner side of the compression support ring 23. like Figure 12 As shown, the cable cooling mechanism 30 includes a cable cooling housing 31 arranged coaxially with the constant temperature compression housing 21. Both ends of the cable cooling housing 31 have a second cable through hole 310 that runs through its axis. The cable cooling housing 31 has multiple cooling input pipes 311 connected to its interior on the outside of the input end, and multiple cooling output pipes 312 connected to its interior on the outside of the output end.

[0026] Example 2: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production described in Embodiment 1 above, including the following steps: S1. Apply a coating to the photovoltaic cable: The photovoltaic cable to be coated extends along the axis of the winding mechanism support ring 12 and moves gradually under the traction of the traction mechanism; As the photovoltaic cable moves along the axis of the winding mechanism support ring 12, the winding rotation drive ring 13 drives the combined film support ring 14 to rotate together around the axis of the photovoltaic cable, gradually winding the film wound on the unwinding roller 15 around the outside of the photovoltaic cable. The films include existing polyolefin films, fluoroplastic films, polyester films, and aluminum-plastic composite films; S2. Heat and cure the film on the photovoltaic cable and press it firmly: After being coated, the photovoltaic cable is inserted into the constant temperature compression housing 21 through the first cable through hole 210. The film on the outside of the photovoltaic cable is pre-compressed by the cable coating roller 24 to make the film fit the outer side of the photovoltaic cable better and avoid wrinkling of the film during subsequent heating and curing. Using an existing air conveyor, 80°C hot air is delivered into the hot air conveying ring 22 through the hot air conveying pipe 221. The hot air in the hot air conveying ring 22 is then ejected from multiple hot air nozzles 220. The hot air blown out by the multiple hot air nozzles 220 is then used to heat and solidify the film on the outside of the photovoltaic cable, so that the film is more stably attached and wrapped around the outer side of the photovoltaic cable. S3. Cool the photovoltaic cable after heat curing: After heat curing, the photovoltaic cable is inserted into the cable cooling housing 31 through the second cable through hole 310. Using an existing air conveyor, cold air at 5°C is delivered into the cable cooling housing 31 through the cooling input pipe 311. The film on the outer side of the photovoltaic cable is cooled by the heat exchange effect of the cold air flowing through the cable cooling housing 31. The cold air after heat exchange is finally discharged from the cooling output pipe 312.

[0027] Finally, the processed photovoltaic cable can be wound up using existing cable winding equipment.

[0028] Example 3: Based on Example 1, such as Figure 3 As shown, a cable support and guide mechanism 16 is provided inside the winding mechanism support ring 12. The cable support and guide mechanism 16 includes two cable support and guide shafts 161 rotatably connected to the inside of the winding mechanism support ring 12. The two cable support and guide shafts 161 are parallel to each other and their axes are perpendicular to the axis of the winding mechanism support ring 12. A support guide roller 162 coaxial with the cable support guide shaft 161 is fixed on the cable support guide shaft 161. The outer side of the support guide roller 162 has a cable adapter constraint groove 1620 extending around it in a circumferential direction.

[0029] Example 4: This embodiment describes a multifunctional coating method for photovoltaic cable production. Based on the multifunctional coating equipment for photovoltaic cable production in Embodiment 3 above, the difference from Embodiment 2 is that, in step S1, when the photovoltaic cable moves along the axis of the winding mechanism support ring 12, it is clamped in the cable adaptation constraint groove 1620 between the support guide rollers 162. When the photovoltaic cable moves, it passively drives the cable support guide shaft 161 to rotate.

[0030] Example 5: Based on Example 3, such as Figure 2 As shown, the unwinding roller 15 is connected to the composite film support ring 14 via the film deflection adjustment mechanism 17, as... Figure 4 , Figure 5 As shown, the film deflection adjustment mechanism 17 includes a deflection adjustment support seat 171 fixed to the side of the combined film support ring 14. A deflection adjustment support shaft 172 is rotatably connected to the deflection adjustment support seat 171. The axis of the deflection adjustment support shaft 172 is perpendicular to the axis of the combined film support ring 14. An arc-shaped support plate 173 is fixed on the deflection adjustment support shaft 172. The side of the arc-shaped support plate 173 away from the deflection adjustment support shaft 172 is an outwardly convex arc-shaped surface. A deflection adjustment support slide rail 174 with the same curvature is fixed on the arc-shaped surface of the arc-shaped support plate 173. A deflection adjustment slider 175 is slidably connected to the deflection adjustment support slide rail 174. An unwinding roller connecting seat 176 is fixed on the deflection adjustment slider 175. An unwinding roller 15 is rotatably connected to the unwinding roller connecting seat 176. The deflection adjustment support shaft 172 is driven to rotate by a prior art servo motor fixed on the deflection adjustment support base 171 via gear transmission. The deflection adjustment slider 175 is driven by a servo motor of the prior art to move along the deflection adjustment support slide rail 174 via a gear and rack transmission.

[0031] Example 6: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production described in Embodiment 5 above. The difference from Embodiment 4 is that in step S1, the winding angle of the film is adjusted by the coating deflection adjustment mechanism 17. The deflection adjustment support shaft 172 is driven to rotate by a prior art servo motor fixed on the deflection adjustment support seat 171 through gear transmission. The deflection adjustment support shaft 172 then drives the arc surface support plate 173, the deflection adjustment support slide rail 174, the deflection adjustment slider 175, the unwinding roller connecting seat 176, and the unwinding roller 15 to deflect together around its axis. Furthermore, the deflection adjustment slider 175 can also be driven by a servo motor of the prior art to move along the deflection adjustment support slide rail 174 through gear and rack transmission. The deflection adjustment slider 175 then drives the unwinding roller connecting seat 176 and the unwinding roller 15 to move together along the deflection adjustment support slide rail 174. With the deflection of the deflection adjustment support shaft 172 and the movement of the deflection adjustment slider 175, the relative position and relative deflection angle between the unwinding roller 15 and the photovoltaic cable can be adjusted, thereby adjusting the winding angle of the film.

[0032] Example 7: Based on Example 5, such as Figure 5 As shown, the unwinding roller connecting seat 176 is equipped with a damping adjustment mechanism 18, such as... Figure 6 As shown, the damping adjustment mechanism 18 includes a damping adjustment support cylinder shell 181 fixed on the unwinding roller connecting seat 176 and arranged coaxially with the roller rotation shaft 150 of the unwinding roller 15. One end of the roller rotation shaft 150 extends into the damping adjustment support cylinder shell 181. A damping adjustment constraint ring 182 coaxial with it is slidably connected inside the damping adjustment support cylinder shell 181. A plurality of electromagnetic induction coils 183 are fixed inside the damping adjustment constraint ring 182. The roller rotation shaft 150 passes through the inner side of the damping adjustment constraint ring 182. A plurality of damping adjustment permanent magnets 184 are fixed on the outer side of the roller rotation shaft 150. The plurality of damping adjustment permanent magnets 184 are arranged circumferentially around the roller rotation shaft 150. The damping adjustment support cylinder shell 181 is provided with a damping adjustment drive rod 185 for driving the damping adjustment constraint ring 182 to move along its axial direction. The damping adjustment drive rod 185 is an existing electrically controlled telescopic rod driven by a servo motor. The outer end of the damping adjustment drive rod 185 is fixedly connected to the inner end of the damping adjustment support cylinder shell 181, and the inner end of the damping adjustment drive rod 185 is fixedly connected to the damping adjustment constraint ring 182.

[0033] Example 8: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production described in Embodiment 7 above. The difference from Embodiment 6 is that, in step S1, when the unwinding roller 15 rotates to release the film, the rotational damping of the unwinding roller 15 is adjusted to adjust the force of the film winding on the photovoltaic cable. When the roller rotation shaft 150 of the unwinding roller 15 rotates, it drives multiple damping adjustment permanent magnets 184 to rotate together. The damping adjustment permanent magnets 184 and multiple electromagnetic induction coils 183 generate electromagnetic induction, which will generate resistance to the rotation of the roller rotation shaft 150. Furthermore, the extension or retraction of the inner rod of the damping adjustment drive rod 185 can drive the damping adjustment constraint ring 182 to move within the damping adjustment support shell 181, adjusting the degree of overlap between the damping adjustment constraint ring 182 and the roller rotation shaft 150 in the axial direction, thereby adjusting the damping magnitude of the electromagnetic induction effect.

[0034] Example 9: Based on Example 7, such as Figure 7 As shown, the cable coating rolling roller 24 is connected to the inner side of the clamping support ring 23 via a radial adjustment mechanism 25, as... Figure 8 As shown, the inner side of the clamping support ring 23 has a plurality of radial adjustment connection holes 250 extending radially therein. The radial adjustment mechanism 25 includes a radial adjustment fixing cylinder 251 coaxially fixed in the radial adjustment connection hole 250 and with the opening facing inward. A radial adjustment sliding cylinder 252 with the opening facing outward is slidably connected inside the radial adjustment fixing cylinder 251. A rolling roller connecting seat 253 is fixed at the end of the radial adjustment sliding cylinder 252. The cable coating rolling roller 24 is rotatably connected to the rolling roller connecting seat 253. The radial adjustment fixed cylinder 251 is provided with a radial adjustment drive rod 254 for driving the radial adjustment sliding cylinder 252 to move. The radial adjustment drive rod 254 is an existing electrically controlled telescopic rod driven by a servo motor. The outer end of the radial adjustment drive rod 254 is fixedly connected to the inner end of the radial adjustment fixed cylinder 251, and the inner end of the radial adjustment drive rod 254 is fixedly connected to the radial adjustment sliding cylinder 252. The rotation axis of the cable coating roller 24 is perpendicular to the axis of the thermostatic pressing housing 21, and the outer side of the cable coating roller 24 has cable rolling constraint grooves 240 arranged around its circumference.

[0035] Example 10: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production in embodiment 9 above. The difference from embodiment 8 is that, in step S2, when the photovoltaic cable passes through the constant temperature pressing and receiving cylinder shell 21, it is jointly constrained in the cable rolling constraint grooves 240 of multiple cable coating rolling rollers 24. The radial adjustment mechanism 25 adjusts the pressing pressure of each cable coating roller 24 on the photovoltaic cable. The inner rods of multiple radial adjustment drive rods 254 can extend or retract synchronously, thereby driving the radial adjustment sliding cylinder 252, the roller connecting seat 253, and the cable coating roller 24 together to move radially along the pressing support ring 23, adjusting the cable coating roller 24 to move closer to or further away from the photovoltaic cable, thereby adjusting the pressing pressure of each cable coating roller 24 on the outer side of the photovoltaic cable.

[0036] Example 11: Based on Example 9, such as Figure 7 As shown, the thermostatic compression housing 21 is equipped with a hot air reflux mechanism 26, such as... Figure 9 As shown, the hot air recirculation mechanism 26 includes a hot air recirculation ring shell 261 fixed inside the constant temperature compression receiving shell 21, and one hot air recirculation ring shell 261 is provided at each end of the hot air conveying ring shell 22. The inner side of the hot gas return ring shell 261 has multiple hot gas return holes 262 that are connected to its interior. The hot gas return ring shell 261 is provided with a hot gas return exhaust pipe 263 that is connected to its interior. The hot gas return exhaust pipe 263 extends to the outside of the constant temperature compression receiving cylinder shell 21.

[0037] Example 12: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production in Embodiment 11 above. The difference from Embodiment 10 is that, in step S2, the hot air blown out by multiple hot air nozzles 220 heats and solidifies the film on the outside of the photovoltaic cable, turning into hot air exhaust gas. The hot air exhaust gas flows along the axis of the constant temperature compression housing shell 21 and gradually moves away from the hot air conveying ring shell 22. The hot air exhaust gas then enters the hot air return ring shell 261 through the hot air return flow hole 262. Finally, the hot air exhaust gas in the hot air return ring shell 261 is discharged from the hot air return exhaust pipe 263. The hot air waste generated after heat exchange is uniformly collected and discharged to prevent it from wandering around in the constant temperature and pressure containment shell 21 and affecting the temperature stability and consistency of the outer film of the photovoltaic cable.

[0038] Example 13: Based on Example 11, such as Figure 7 As shown, the constant temperature compression receiving cylinder shell 21 is equipped with a film covering and repressing mechanism 27, such as... Figure 10As shown, the film-coating and repressing mechanism 27 includes a repressing support ring 271 rotatably connected to the constant temperature pressing and receiving cylinder shell 21 and arranged coaxially therewith. Multiple repressing support connecting seats 272 are fixed inside the repressing support ring 271. A film-coating and repressing rod 273 is rotatably connected to the repressing support connecting seat 272. The film-coating and repressing rod 273 extends spirally around the axis of the repressing support ring 271. The pressure support ring 271 is driven by a prior art servo motor fixed on the inner wall of the thermostatic compression receiving cylinder 21 to rotate around the axis of the thermostatic compression receiving cylinder 21 via gear ring transmission; like Figure 11 As shown, a section of the coated pressure rod 273 away from the pressure support connector 272 has a concave arc segment that adapts to the shape of the photovoltaic cable, and the concave arc segment of the coated pressure rod 273 presses against the outer wall of the photovoltaic cable.

[0039] Example 14: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production described in Embodiment 13 above. The difference from Embodiment 12 is that in step S2, the coating and pressing mechanism 27 is used to smooth the heated and cured film, making it more flat and uniform. The concave arc sections of multiple coating and pressing rods 273 press against the film on the outer side of the photovoltaic cable. The pressing support ring 271 is driven by a conventional servo motor fixed to the inner wall of the constant temperature pressing housing 21 through gear ring transmission to rotate around the axis of the constant temperature pressing housing 21. The pressing support ring 271 then drives the multiple coating and pressing rods 273 to rotate together. In conjunction with the movement of the photovoltaic cable, the multiple coating and pressing rods 273 smooth the film around the circumference of the photovoltaic cable, making the film adhere more flatly and uniformly to the outer surface of the photovoltaic cable.

[0040] Example 15: Based on Example 13, such as Figure 12 As shown, the cross-section of the cable cooling housing 31 gradually narrows and then expands from the input end to the output end. Multiple cooling air guide plates 313 are fixed on the inner wall of the cable cooling housing 31, spirally extending around its axis.

[0041] Example 16: This embodiment describes a multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production described in Embodiment 15 above. The difference from Embodiment 14 is that in step S3, the cross-section of the cable cooling housing 31 first gradually narrows and then gradually expands. When the cold air flows through the cable cooling housing 31, it first accelerates and then decelerates. Under the guidance of the cooling air guide plate 313, the cold air will rotate and move forward along the axis of the cable cooling housing 31. When the cold air passes through the smallest cross-section, it will quickly exchange heat with the outer surface of the photovoltaic cable, avoiding the waste caused by the cold air being far away from the photovoltaic cable not being able to exchange heat with the photovoltaic cable.

[0042] Example 17: The difference from Embodiment 16 is that, in step S2, hot air at 150°C is delivered into the hot air conveying ring 22 via a hot air conveying pipe 221 using an existing air conveyor. In step S3, an air conveyor using existing technology delivers 10°C cold air to the cable cooling housing 31 through the cooling input pipe 311.

[0043] Example 18: The difference from Embodiment 16 is that, in step S2, a conventional air conveyor is used to deliver hot air at 200°C into the hot air conveying ring 22 through the hot air conveying pipe 221; In step S3, an air conveyor using existing technology delivers 15°C cold air to the cable cooling housing 31 through a cooling input pipe 311.

Claims

1. A multifunctional coating equipment for photovoltaic cable production, characterized in that, It includes a film wrapping mechanism (10), a film constant temperature pressing mechanism (20), and a cable cooling mechanism (30) connected in sequence. The film-coating and winding mechanism (10) includes a winding mechanism support base plate (11). Two coaxial winding mechanism support rings (12) are fixed on the top of the winding mechanism support base plate (11) and their axes are arranged horizontally. A winding rotation drive ring (13) is rotatably connected to the winding mechanism support ring (12) and is coaxial with it. A combined film support ring (14) is fixed on the winding rotation drive ring (13) and is coaxial with it. Multiple unwinding rollers (15) are rotatably connected to the combined film support ring (14). The film-coated constant temperature pressing mechanism (20) includes a constant temperature pressing receiving shell (21) arranged coaxially with the winding mechanism support ring (12), and both ends of the constant temperature pressing receiving shell (21) have a first cable through hole (210) passing through its axis. The constant temperature compression receiving cylinder shell (21) is fixed with a hot air conveying ring shell (22) that is coaxial with it and hollow inside. The hot air conveying ring shell (22) is provided with multiple hot air nozzles (220) on the inner side. The hot air conveying ring shell (22) is provided with a hot air conveying pipe (221) that communicates with its interior, and the hot air conveying pipe (221) extends to the outside of the constant temperature pressing and receiving cylinder shell (21); The constant temperature compression receiving cylinder shell (21) is fixed with a compression support ring (23) coaxial with it, and multiple cable coating rolling rollers (24) are connected to the inner side of the compression support ring (23). The cable cooling mechanism (30) includes a cable cooling housing (31) arranged coaxially with the constant temperature compression housing (21), and both ends of the cable cooling housing (31) have a second cable through hole (310) that runs along its axis. The cable cooling housing (31) has multiple cooling input pipes (311) connected to its interior on the outside of the input end, and multiple cooling output pipes (312) connected to its interior on the outside of the output end.

2. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The inner side of the winding mechanism support ring (12) is provided with a cable support guide mechanism (16). The cable support guide mechanism (16) includes two cable support guide shafts (161) rotatably connected to the inner side of the winding mechanism support ring (12). The two cable support guide shafts (161) are parallel to each other and their axes are perpendicular to the axis of the winding mechanism support ring (12). The cable support guide shaft (161) is fixed with a support guide roller (162) coaxial with it, and the outer side of the support guide roller (162) has a cable adapter constraint groove (1620) extending around it in a circumferential direction.

3. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The unwinding roller (15) is connected to the composite film support ring (14) via a film deflection adjustment mechanism (17). The film deflection adjustment mechanism (17) includes a deflection adjustment support seat (171) fixed to the side of the composite film support ring (14). A deflection adjustment support shaft (172) is rotatably connected to the deflection adjustment support seat (171). An arc-shaped support plate (173) is fixed to the deflection adjustment support shaft (172). The side away from the deflection adjustment support shaft (172) is a convex arc surface. A deflection adjustment support slide rail (174) with the same curvature is fixed on the arc surface of the arc support plate (173). A deflection adjustment slider (175) is slidably connected on the deflection adjustment support slide rail (174). A unwinding roller connecting seat (176) is fixed on the deflection adjustment slider (175). The unwinding roller (15) is rotatably connected to the unwinding roller connecting seat (176).

4. The multifunctional coating equipment for photovoltaic cable production according to claim 3, characterized in that, The unwinding roller connecting seat (176) is provided with a damping adjustment mechanism (18). The damping adjustment mechanism (18) includes a damping adjustment support shell (181) fixed on the unwinding roller connecting seat (176) and arranged coaxially with the roller rotation shaft (150) of the unwinding roller (15). One end of the roller rotation shaft (150) extends into the inside of the damping adjustment support shell (181). A damping adjustment constraint ring (182) coaxial with the damping adjustment support shell (181) is slidably connected inside the damping adjustment constraint ring (182). Multiple electromagnetic induction coils (183) are fixed inside the damping adjustment constraint ring (182). The roller rotation shaft (150) passes through the inside of the damping adjustment constraint ring (182). Multiple damping adjustment permanent magnets (184) are fixed on the outside of the roller rotation shaft (150). The multiple damping adjustment permanent magnets (184) are arranged circumferentially around the roller rotation shaft (150). The damping adjustment support shell (181) is provided with a damping adjustment drive rod (185) for driving the damping adjustment constraint ring (182) to move along its axial direction.

5. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The cable coating rolling roller (24) is connected to the inner side of the clamping support ring (23) via a radial adjustment mechanism (25). The inner side of the clamping support ring (23) has a plurality of radial adjustment connection holes (250) extending radially therein. The radial adjustment mechanism (25) includes a radial adjustment fixing cylinder (251) coaxially fixed in the radial adjustment connection hole (250) and with its opening facing inward. A radial adjustment sliding cylinder (252) with its opening facing outward is slidably connected inside the radial adjustment fixing cylinder (251). A rolling roller connecting seat (253) is fixed at the end of the radial adjustment sliding cylinder (252). The cable coating rolling roller (24) is rotatably connected to the rolling roller connecting seat (253). The radial adjustment fixed cylinder (251) is provided with a radial adjustment drive rod (254) for driving the radial adjustment sliding cylinder (252) to move. The axis of rotation of the cable coating roller (24) is perpendicular to the axis of the thermostatic pressing housing (21), and the outer side of the cable coating roller (24) has a cable rolling constraint groove (240) arranged around its circumference.

6. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The constant temperature pressing and receiving cylinder shell (21) is provided with a hot air return mechanism (26). The hot air return mechanism (26) includes a hot air return ring shell (261) fixed inside the constant temperature pressing and receiving cylinder shell (21). One hot air return ring shell (261) is provided at each end of the hot air conveying ring shell (22). The inner side of the hot gas return ring shell (261) has a plurality of hot gas return holes (262) connected to its interior. The hot gas return ring shell (261) is provided with a hot gas return exhaust pipe (263) connected to its interior. The hot gas return exhaust pipe (263) extends to the outside of the constant temperature compression receiving cylinder shell (21).

7. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The constant temperature pressing and receiving cylinder shell (21) is provided with a film covering and repressing mechanism (27). The film covering and repressing mechanism (27) includes a repressing support ring (271) rotatably connected to the constant temperature pressing and receiving cylinder shell (21) and arranged coaxially with it. Multiple repressing support connecting seats (272) are fixed inside the repressing support ring (271). A film covering and repressing rod (273) is rotatably connected to the repressing support connecting seat (272). The film covering and repressing rod (273) extends spirally around the axis of the repressing support ring (271). The section of the coated pressure rod (273) away from the pressure support connector (272) has a concave arc segment adapted to the shape of the photovoltaic cable, and the concave arc segment of the coated pressure rod (273) presses against the outer wall of the photovoltaic cable.

8. The multifunctional coating equipment for photovoltaic cable production according to claim 1, characterized in that, The cross-section of the cable cooling housing (31) gradually narrows and then expands from the input end to the output end. Multiple cooling air guide plates (313) are fixed on the inner wall of the cable cooling housing (31) and spirally extended around its axis.

9. A multifunctional coating method for photovoltaic cable production, based on the multifunctional coating equipment for photovoltaic cable production according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Apply a coating to the photovoltaic cable: The photovoltaic cable to be coated extends along the axis of the winding mechanism support ring (12) and moves gradually under the traction of the traction mechanism; During the movement of the photovoltaic cable along the axis of the winding mechanism support ring (12), the winding rotation drive ring (13) drives the combined film support ring (14) to rotate together around the axis of the photovoltaic cable, gradually winding the film wound on the unwinding roller (15) around the outside of the photovoltaic cable. S2. Heat and cure the film on the photovoltaic cable and press it firmly: After being coated, the photovoltaic cable is inserted into the constant temperature compression housing (21) through the first cable through hole (210). The film on the outside of the photovoltaic cable is pre-compressed by the cable coating roller (24) to make the film fit the outer side of the photovoltaic cable better and avoid wrinkling of the film during subsequent heating and curing. Hot air at 80~200°C is delivered into the hot air conveying ring (22) through the hot air conveying pipe (221) using an air conveyor. The hot air in the hot air conveying ring (22) is then sprayed out from multiple hot air nozzles (220). The hot air blown out by the multiple hot air nozzles (220) is then used to heat and solidify the film on the outside of the photovoltaic cable, so that the film is more stably attached and wrapped around the outer side of the photovoltaic cable. S3. Cool the photovoltaic cable after heat curing: After the photovoltaic cable is heated and cured, it is then inserted into the cable cooling housing (31) through the second cable perforation (310). Cold air at 5~15°C is delivered into the cable cooling housing (31) through the cooling input pipe (311) by an air conveyor. The film on the outer side of the photovoltaic cable is cooled by the heat exchange effect of the cold air flowing through the cable cooling housing (31). The cold air after heat exchange is finally discharged from the cooling output pipe (312).

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