Preparation device of high-temperature-resistant insulating photovoltaic cable

Abstract

The invention discloses a preparation device of a high-temperature-resistant insulating photovoltaic cable, and particularly relates to the field of photovoltaic cable production.The preparation device comprises a preparation box, an unwinding mechanism is arranged at one end of the preparation box, an unwinding shaft is arranged on the unwinding mechanism, a composite shielding strip is wound on the unwinding shaft, and a cutting mechanism is installed in the preparation box; a thermosetting mechanism is arranged at the end, away from the unwinding mechanism, of the cutting mechanism, the unwinding mechanism comprises a glue pressing assembly, and a coating assembly is arranged above the glue pressing assembly. The inner surface adhesive layer is pressed to form the long-strip-shaped protruding layer on the composite shielding strip, then the edge covering layer is coated on the surface of one side of the cutting position of the cut lower strip and the cut upper strip, the edge bonding strength of the lower strip and the upper strip is improved, the problem that the lower strip and the upper strip are prone to layering in the conveying and rolling process is solved, and the production efficiency is improved. And the sealing effect and firmness of the conductor by the lower strip material and the upper strip material are ensured, so that the overall quality of the cable meets the requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cable production, and more specifically, to a preparation device for a high-temperature resistant and insulated photovoltaic cable. Background Art

[0002] The preparation of cables starts from the processing of conductors, and insulation, shielding, cabling, sheath, etc. are added layer by layer around the conductors to make wire and cable products. Therefore, the more complex the structure of the cable product is, the more layers are superimposed.

[0003] In order to improve the physical properties of cables, the prior art uses a multi-layer composite shielding layer, and different materials are combined by adhesive bonding between layers. The formed composite shielding strip has complementary performance shortboards, achieving the effect of functional combination.

[0004] When preparing the composite shielding strip, an adhesive also needs to be coated on the inner surface close to the insulation layer for easy winding and covering. The preparation process of the prior art is as follows: first, the inner surface of the composite shielding strip is conveyed upwards to the gluing mechanism, the adhesive is coated on the upward inner surface of the composite shielding strip, then the composite shielding strip with the adhesive is cut into multiple groups of composite shielding strips, and then the adhesive on the composite shielding strips is thermally cured. Finally, the composite shielding strips are wound up. Since debris will be generated when cutting after the adhesive is thermally cured, and the cured adhesive debris needs to be additionally processed, cutting the composite shielding strip into strips and then thermally curing can reduce the influence of the cured adhesive debris.

[0005] Since the composite shielding strip is a multi-layer structure, after being cut into strips, the side edges of the cutting parts are exposed and not edge-bonded, and the edge bonding strength is affected. Stratification problems are likely to occur during conveying and winding. When the stratified composite shielding strips are wound and covered, the sealing effect and firmness on the conductor are reduced, affecting the overall quality of the cable. Summary of the Invention

[0006] A preparation device for a high-temperature resistant and insulated photovoltaic cable provided by the present invention aims to solve the problem that in the existing preparation device for a high-temperature resistant and insulated photovoltaic cable, after the composite shielding strip is cut into strips, the side edges of the cutting parts are exposed and not edge-bonded, and the edge bonding strength is affected.

[0007] To achieve the above object, the present invention provides the following technical solution: A preparation device for a high-temperature resistant insulating photovoltaic cable, comprising a preparation box. One end of the preparation box is provided with an unwinding mechanism, on which an unwinding shaft is arranged, and a composite shielding strip is wound around the unwinding shaft. A cutting mechanism is installed inside the preparation box, and a heat setting mechanism is arranged at one end of the cutting mechanism away from the unwinding mechanism. The unwinding mechanism includes a glue pressing component, and a coating component is arranged above the glue pressing component. A glue pressing shaft is installed on the glue pressing component, and an annular groove is formed on the surface of the glue pressing shaft. The coating component is used to coat an inner surface adhesive layer on the composite shielding strip, and the glue pressing shaft rolls the inner surface adhesive layer along the length direction through the annular groove to form a protruding layer; The cutting mechanism includes a cutting component, and several groups of the output ends of the cutting component are arranged corresponding to the protruding layer. The output end of the cutting component cuts the composite shielding strip into a lower strip and an upper strip along the corresponding protruding layer; On one side of the cutting positions of the lower strip and the upper strip, a leveling mechanism is arranged, and the leveling mechanism is located on the side of the cutting component away from the glue pressing component. The leveling mechanism is used to coat a wrapping layer on the surface of one side of the corresponding cutting positions of the lower strip and the upper strip.

[0008] In a preferred embodiment, a winding frame is installed on the unwinding mechanism, and the winding frame is used to support the rotation of the unwinding shaft. The coating component includes a glue cylinder, and a glue outlet head is fixedly arranged below the glue cylinder. The bottom of the glue cylinder is rotatably connected with a coating shaft one, and the coating shaft one is located below the glue outlet head. The coating shaft one rolls along the upper surface of the composite shielding strip.

[0009] In a preferred embodiment, the output end of the cutting component is arranged corresponding to the protruding layer. The cutting component includes a frame, on which a support seat is installed. The output end of the cutting component is a cutter, and the cutter is fixedly installed on the support seat. A cutting reel is rotatably installed on the frame, and the cutting reel is located below the cutter. A cutting groove is formed on the outer circumference of the cutting reel, and several groups of the cutting grooves are arranged corresponding to the cutter and the protruding layer.

[0010] In a preferred embodiment, the side surface of the support seat corresponding to the cutter is an inclined surface, and a glue collecting port is arranged on the inclined surface. A rotary driver is installed on the frame, and the rotary driver is used to drive the cutting reel to rotate. One end of the support seat is fixedly connected with a conveying pipe, and the conveying pipe is connected with the leveling mechanism.

[0011] In a preferred embodiment, an upper wire dividing component is arranged on one side of the cutting component, and a lower wire dividing component is arranged below one end of the upper wire dividing component. Guide shafts one are installed on both the upper wire dividing component and the lower wire dividing component. The lower strip and the upper strip are respectively divided into upper and lower layers and conveyed to the heat setting mechanism through the lower wire dividing component and the upper wire dividing component.

[0012] In a preferred embodiment, the leveling mechanism includes a rubber seat, on which a connecting seat is fixedly installed. On both sides of the connecting seat, a linear drive and a side gluing assembly are respectively installed. The side gluing assembly is used to apply edge-sealing glue to one side surface of the cutting part of the lower strip and the upper strip. The edge-sealing layer is formed by thermosetting of the edge-sealing glue.

[0013] In a preferred embodiment, the side gluing assembly includes a mounting frame, and one side of the mounting frame is open. A cross frame is slidably arranged inside the mounting frame. On the side of the cross frame corresponding to the lower strip, a glue application shaft II is installed. An upper glue plate is also installed on the cross frame, and the upper glue plate is in movable contact with the surface of the glue application shaft II. A glue delivery pipe is connected between the upper glue plate and the connecting seat. The edge-sealing glue inside the rubber seat is delivered to the upper glue plate through the connecting seat and the glue delivery pipe.

[0014] In a preferred embodiment, the thermosetting mechanism includes a box body, on which a heating assembly is installed. The output end of the heating assembly is located inside the box body. The output end of the heating assembly is a heater I or a heater II. The height of the heater I is lower than that of the heater II. An outlet is opened at one end of the preparation box away from the unwinding mechanism. A winding mechanism is installed at one end of the thermosetting mechanism close to the outlet. The composite shielding strip unwound from the unwinding shaft on the unwinding mechanism is sequentially conveyed to the cutting mechanism, the thermosetting mechanism and the winding mechanism. The lower strip and the upper strip after being processed by the thermosetting mechanism are wound by the winding mechanism.

[0015] In a preferred embodiment, the winding mechanism includes a mounting seat, on which a guide shaft II is fixedly installed. An upper winding shaft and a lower winding shaft are rotatably installed on the mounting seat, and the lower winding shaft is located below the upper winding shaft. The upper strip and the lower strip are respectively wound around the outer circumferences of the upper winding shaft and the lower winding shaft.

[0016] The present invention also provides a high-temperature resistant insulating photovoltaic cable, which includes a conductor, an insulating layer is wound around the outer circumference of the conductor, a composite shielding strip is arranged on the outer circumference of the insulating layer, a sheath is sleeved on the outer circumference of the composite shielding strip. The composite shielding strip includes a base layer and a coating layer. The base layer includes a magnetic material layer, a high-temperature resistant polymer layer and a highly conductive metal layer, and the high-temperature resistant polymer layer is located between the magnetic material layer and the highly conductive metal layer. The coating layer is composed of an inner surface adhesive layer, and the inner surface adhesive layer is arranged on the surface of the magnetic material layer.

[0017] The beneficial effects of the present invention are as follows: In the present invention, after a long-strip protruding layer is pressed out on the composite shielding strip with the inner surface adhesive layer, and then the composite shielding strip is cut into a lower strip and an upper strip along the protruding layer, and then an edge-sealing layer is coated on one side surface of the cutting part of the lower strip and the upper strip, the edge bonding strength of the lower strip and the upper strip is improved, and the problem that the lower strip and the upper strip are prone to delamination during transportation and winding is avoided, ensuring the sealing effect and firmness of the lower strip and the upper strip on the conductor, and making the overall quality of the cable meet the requirements.

[0018] Through the first guide shaft of the upper wire dividing component and the lower wire dividing component, the adjacent lower strip and upper strip are conveyed in upper and lower layers, so as to separate the adjacent lower strip and upper strip vertically and increase the distance between them, providing space for the flattening mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall sectional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the unwinding rack structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the coating component structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the side structure of the pressure rubber shaft of the present invention.

[0023] Figure 5 It is a schematic diagram of the internal structure of the cutting mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the cutting component structure of the present invention.

[0025] Figure 7 It is a schematic diagram of the flattening mechanism structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the side coating component structure of the present invention.

[0027] Figure 9 It is a schematic diagram of the heat setting mechanism structure of the present invention.

[0028] Figure 10 It is a schematic diagram of the winding mechanism structure of the present invention.

[0029] Figure 11 It is a schematic diagram of the cross section of the high temperature resistant insulating photovoltaic cable of the present invention.

[0030] The reference numerals are: 1, preparation box; 11, discharge port; 2, unwinding mechanism; 21, unwinding rack; 22, rubber pressing assembly; 221, rubber pressing shaft; 222, annular groove; 23, coating assembly; 231, glue outlet head; 232, coating shaft I; 3, cutting mechanism; 31, cutting assembly; 311, support base; 312, cutter; 313, cutting reel; 314, rotary drive; 315, delivery pipe; 316, cutting groove; 32, upper wire dividing assembly; 321, guide shaft I; 33, lower wire dividing assembly; 34, flattening mechanism; 341, glue seat; 342, connecting seat; 343, linear drive; 344, side rubber coating assembly; 345, cross frame; 346, coating shaft II; 347, upper rubber plate; 348, glue delivery pipe; 4, heat setting mechanism; 41, heating assembly; 42, heater I; 43, heater II; 5, winding mechanism; 51, guide shaft II; 52, upper winding shaft; 53, lower winding shaft; 6, unwinding shaft; 61, composite shielding strip; 611, inner surface adhesive layer; 612, magnetic material layer; 613, high temperature resistant polymer layer; 614, high conductivity metal layer; 62, protruding layer; 63, lower strip; 64, upper strip; 65, edge wrapping layer; 7, conductor; 8, insulating layer; 9, sheath. Detailed implementation manners

[0031] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0032] Refer to the attached drawings of the specification Figures 1 to 7, A preparation device for a high-temperature resistant insulating photovoltaic cable, including a preparation box 1. One end of the preparation box 1 is provided with an unwinding mechanism 2. An unwinding shaft 6 is arranged on the unwinding mechanism 2, and a composite shielding strip 61 is wound on the unwinding shaft 6. A cutting mechanism 3 is installed inside the preparation box 1. A heat curing mechanism 4 is arranged at one end of the cutting mechanism 3 away from the unwinding mechanism 2. The unwinding mechanism 2 includes a pressure adhesive component 22. A coating component 23 is arranged above the pressure adhesive component 22. A pressure adhesive shaft 221 is installed on the pressure adhesive component 22. An annular groove 222 is formed on the surface of the pressure adhesive shaft 221. The coating component 23 is used to coat an inner surface adhesive layer 611 on the composite shielding strip 61. The pressure adhesive shaft 221 rolls the inner surface adhesive layer 611 along the length direction through the annular groove 222 to form a protruding layer 62; The cutting mechanism 3 includes a cutting component 31, and several groups are correspondingly arranged at the output end of the cutting component 31 for the protruding layer 62. The output end of the cutting component 31 cuts the composite shielding strip 61 into a lower strip 63 and an upper strip 64 along the corresponding protruding layer 62; On one side of the cutting part of the lower strip 63 and the upper strip 64, a flattening mechanism 34 is provided, and the flattening mechanism 34 is located on the side of the cutting component 31 away from the pressure adhesive component 22. The flattening mechanism 34 is used to coat a wrapping layer 65 on the surface of one side of the cutting part of the corresponding lower strip 63 and upper strip 64.

[0033] It should be noted that the pressure adhesive shaft 221 is used to press the inner surface adhesive layer 611 to adhere to the composite shielding strip 61, and cooperate with the annular groove 222 to press out the protruding layer 62 along the length direction of the composite shielding strip 61. The protruding layer 62 is located inside the annular groove 222. The output end of the cutting component 31 is mainly a blade or saw blade component. Several groups are correspondingly arranged at the output end of the cutting component 31 for the protruding layer 62. The output end of the cutting component 31 is located above the composite shielding strip 61.

[0034] In this embodiment, the implementation scenario is specifically as follows: The composite shielding strip 61 is unrolled by the unrolling shaft 6, the inner surface adhesive layer 611 is coated on the composite shielding strip 61 through the coating assembly 23, the long strip protruding layer 62 is pressed on the composite shielding strip 61 through the pressure glue shaft 221 and the annular groove 222. The adhesive tightness at the protruding layer 62 is relatively loose compared with the adhesive tightness on both sides. The composite shielding strip 61 with the protruding layer 62 is conveyed along the pressure glue shaft 221 to the cutting assembly 31. The output end of the cutting assembly 31 cuts the position of the composite shielding strip 61 corresponding to the protruding layer 62 from above, so that the composite shielding strip 61 is cut into multiple groups of adjacent lower strips 63 and upper strips 64. The following embodiment illustrates with one pair of lower strips 63 and upper strips 64. After cutting, the loose adhesive at the protruding layer 62 overflows to the side, providing a basis for the coating of the subsequent edge wrapping layer 65. The edge wrapping layer 65 is coated on one side surface of the cutting positions of the lower strips 63 and the upper strips 64 through the flattening mechanism 34. Finally, the inner surface adhesive layer 611 and the edge wrapping layer 65 are thermally cured through the thermal curing mechanism 4. As a whole, by pressing the inner surface adhesive layer 611 into a long strip protruding layer 62 on the composite shielding strip 61, and then cutting the composite shielding strip 61 along the protruding layer 62 into the lower strips 63 and the upper strips 64, then coating the edge wrapping layer 65 on one side surface of the cutting positions of the lower strips 63 and the upper strips 64, the edge bonding strength of the lower strips 63 and the upper strips 64 is improved, avoiding the problem that the lower strips 63 and the upper strips 64 are prone to delamination during conveying and winding, ensuring the sealing effect and firmness of the lower strips 63 and the upper strips 64 on the conductor 7, and making the overall quality of the cable meet the requirements.

[0035] Further, an unrolling frame 21 is installed on the unrolling mechanism 2, and the unrolling frame 21 is used to support the rotation of the unrolling shaft 6. The coating assembly 23 includes a glue cylinder, a glue outlet head 231 is fixedly provided below the glue cylinder, a first coating glue shaft 232 is rotatably connected to the bottom of the glue cylinder, and the first coating glue shaft 232 is located below the glue outlet head 231. The first coating glue shaft 232 rolls along the upper surface of the composite shielding strip 61.

[0036] It should be noted that the composite shielding strip 61 unrolled by the unrolling shaft 6 is horizontally conveyed below the first coating glue shaft 232. The adhesive is provided to the glue outlet head 231 through the glue cylinder, and the adhesive is coated on the composite shielding strip 61 to form the inner surface adhesive layer 611 by the rolling of the first coating glue shaft 232.

[0037] Furthermore, the output end of the cutting assembly 31 is arranged corresponding to the protruding layer 62. The cutting assembly 31 includes a frame, on which a support base 311 is installed. The output end of the cutting assembly 31 is a cutter 312, and the cutter 312 is fixedly installed on the support base 311. A cutting reel 313 is rotatably installed on the frame, and the cutting reel 313 is located below the cutter 312. A cutting groove 316 is formed on the outer periphery of the cutting reel 313, and a number of groups of the cutting groove 316 are correspondingly arranged with the cutter 312 and the protruding layer 62.

[0038] It should be noted that the composite shielding strip 61 is located above the cutting reel 313. The composite shielding strip 61 is conveyed from the pressure-sensitive adhesive shaft 221 to the surface of the cutting reel 313. The composite shielding strip 61 is cut along the protruding layer 62 by aligning the cutter 312 with the cutting groove 316, and the composite shielding strip 61 is cut into multiple groups of adjacent lower strips 63 and upper strips 64.

[0039] Furthermore, the side surface of the support base 311 corresponding to the cutter 312 is an inclined surface, and a glue receiving port is provided on this inclined surface. A rotary driver 314 is installed on the frame, and the rotary driver 314 is used to drive the cutting reel 313 to rotate. One end of the support base 311 is fixedly connected with a conveying pipe 315, and the conveying pipe 315 is connected to the flattening mechanism 34.

[0040] It should be noted that the support base 311 is far from the thermosetting mechanism 4. The inside of the support base 311 is suitable for storing the edge-sealing glue to be used later. The support base 311 is provided with a feeding port at an appropriate position for adding the edge-sealing glue. The inside of the support base 311 is not communicated with the glue receiving port. The edge-sealing glue is provided for the flattening mechanism 34 through the conveying pipe 315. When the blade of the cutter 312 cuts, part of the adhesive will splash to the support base 311. The splashed adhesive is collected through the glue receiving port on the inclined surface of the support base 311 and then cleaned centrally later.

[0041] Since the lower strips 63 and the upper strips 64 are horizontally conveyed, the distance between adjacent lower strips 63 and upper strips 64 is determined by the thickness of the blade at the output end of the cutting assembly 31, and the blade thickness itself is relatively thin. Therefore, the space at the cutting part of the lower strips 63 and the upper strips 64 is limited, and it is inconvenient for the flattening mechanism 34 to coat the edge-sealing layer 65 on one side surface corresponding to the cutting part of the lower strips 63 and the upper strips 64.

[0042] Refer to the attached drawings of the specification Figures 5 to 11 To solve this problem, the following technical solution is also provided: A upper wire-dividing assembly 32 is arranged on one side of the cutting assembly 31, and a lower wire-dividing assembly 33 is arranged below one end of the upper wire-dividing assembly 32. Guide shafts 321 are installed on both the upper wire-dividing assembly 32 and the lower wire-dividing assembly 33. The lower strips 63 and the upper strips 64 are respectively divided into upper and lower layers and conveyed to the thermosetting mechanism 4 through the lower wire-dividing assembly 33 and the upper wire-dividing assembly 32.

[0043] Further, the flattening mechanism 34 includes a rubber seat 341, on which a connecting seat 342 is fixedly installed. A linear drive 343 and a side glue application assembly 344 are respectively installed on both sides of the connecting seat 342. The side glue application assembly 344 is used to apply edge-sealing glue to one side surface of the cutting part of the lower strip 63 and the upper strip 64. The edge-sealing layer 65 is formed by thermosetting of the edge-sealing glue.

[0044] It should be noted that the edge-sealing glue used is Thomas THOP-3 high-temperature glue, a one-component epoxy-modified glue, which can be quickly cured at 180°C for 1 to 5 minutes and has a temperature resistance of up to 350°C. The rubber seat 341 and the support seat 311 are connected through a delivery pipe 315. The sides of the lower strip 63 and the upper strip 64 pass through the corresponding side glue application assemblies 344.

[0045] Furthermore, the side glue application assembly 344 includes a mounting frame, and one side of the mounting frame is open. A cross frame 345 is slidably arranged inside the mounting frame. A glue application shaft II 346 is installed on the side of the cross frame 345 corresponding to the lower strip 63. An upper glue plate 347 is also installed on the cross frame 345. The upper glue plate 347 is in movable contact with the surface of the glue application shaft II 346. A glue delivery pipe 348 is connected between the upper glue plate 347 and the connecting seat 342. The edge-sealing glue inside the rubber seat 341 is delivered to the upper glue plate 347 through the connecting seat 342 and the glue delivery pipe 348.

[0046] It should be noted that the upper glue plate 347 includes a brush board and bristles. The brush board is connected to the glue delivery pipe 348, and the edge-sealing glue is provided to the bristles through the glue delivery pipe 348.

[0047] In this embodiment, the implementation scenario is specifically as follows: Through the first guiding shaft 321 of the upper wire-dividing component 32 and the lower wire-dividing component 33, the adjacent lower strip 63 and upper strip 64 are divided into upper and lower layers for conveying, so as to separate the adjacent lower strip 63 and upper strip 64 vertically and increase the distance between them, providing space for the flattening mechanism 34. The cutter 312 cuts along the protruding layer 62 in the length direction, taking the protruding protruding layer 62 as the cutting line. After cutting, the adhesive of the loose protruding layer 62 overflows to the side, and the adhesive overflowing to the side serves as the base glue layer. The edge-sealing glue inside the glue seat 341 is conveyed to the connecting seat 342 through a material pump. Taking the operation of the lower wire-dividing component 33 as an example, the edge-sealing glue is then provided to the bristles of the upper glue plate 347 through the glue delivery pipe 348. The second glue-applying shaft 346 contacts the side of the lower strip 63 for rolling brushing, and the edge-sealing glue provided by the upper glue plate 347 is brushed on the side of the lower strip 63 to form an edge-sealing layer 65. Through the first guiding shaft 321 of the upper wire-dividing component 32 and the lower wire-dividing component 33, the adjacent lower strip 63 and upper strip 64 are divided into upper and lower layers for conveying. The first heater 42 and the second heater 43 at different heights respectively perform heat curing on the lower strip 63 and the upper strip 64. Finally, they are wound by the lower winding shaft 53 and the upper winding shaft 52. As a whole, the base glue layer is coated first, and then the complete edge-sealing layer 65 is coated. Compared with a smooth plane, the base glue layer makes the edge-sealing layer 65 adhere firmly and not easy to fall off, and there is no omission on the side.

[0048] Further, the heat curing mechanism 4 includes a box body, on which a heating component 41 is installed. The output end of the heating component 41 is located inside the box body. The output end of the heating component 41 is the first heater 42 or the second heater 43. The height of the first heater 42 is lower than that of the second heater 43. An outlet 11 is provided at one end of the preparation box 1 far from the unwinding mechanism 2. The heat curing mechanism 4 is installed at one end close to the outlet 11 with a winding mechanism 5. The composite shielding strip 61 unwound from the unwinding shaft 6 on the unwinding mechanism 2 is sequentially conveyed to the cutting mechanism 3, the heat curing mechanism 4, and the winding mechanism 5. The lower strip 63 and the upper strip 64 processed by the heat curing mechanism 4 are wound by the winding mechanism 5.

[0049] It should be noted that the first heater 42 and the second heater 43 are used to perform heat curing on the adhesive and the edge-sealing glue on the surfaces of the upper strip 64 and the lower strip 63 respectively. The main structures of the first heater 42 and the second heater 43 are heating lamps or heating plates. High temperature can accelerate the curing process of the adhesive. The specific temperature and time depend on the type of adhesive used and the recommended values in its instruction manual. Generally, the curing temperature range can vary from room temperature to 200 °C, and the heat curing time can range from several minutes to several hours.

[0050] Furthermore, the coiling mechanism 5 includes a mounting base, on which a second guiding shaft 51 is fixedly installed. An upper coiling shaft 52 and a lower coiling shaft 53 are rotatably installed on the mounting base, and the lower coiling shaft 53 is located below the upper coiling shaft 52. The upper strip 64 and the lower strip 63 are respectively wound around the outer peripheries of the upper coiling shaft 52 and the lower coiling shaft 53.

[0051] It should be noted that the second guiding shaft 51 is composed of two pairs of upper and lower rollers. The upper strip 64 and the lower strip 63 pass through between the two pairs of rollers, so that the lower strip 63 and the upper strip 64 are smoothly wound around the lower coiling shaft 53 and the upper coiling shaft 52.

[0052] The present invention also provides a high-temperature resistant and insulating photovoltaic cable, which includes a conductor 7. An insulating layer 8 is wound around the outer periphery of the conductor 7. A composite shielding strip 61 is provided on the outer periphery of the insulating layer 8. A sheath 9 is sleeved on the outer periphery of the composite shielding strip 61. The composite shielding strip 61 includes a base layer and a coating layer. The base layer includes a magnetic material layer 612, a high-temperature resistant polymer layer 613, and a highly conductive metal layer 614. The high-temperature resistant polymer layer 613 is located between the magnetic material layer 612 and the highly conductive metal layer 614. The coating layer is composed of an inner surface adhesive layer 611, and the inner surface adhesive layer 611 is provided on the surface of the magnetic material layer 612.

[0053] It should be noted that the magnetic material layer 612 is made of a magnetic material, such as Fe3O4. The base material of the high-temperature resistant polymer layer 613 is polyimide or fluoroplastic. The fluoroplastic is polyperfluoroethylene or soluble polytetrafluoroethylene. The polyimide is a fiber composite material, which is compounded by silver plating and magnetic particles, and can withstand a temperature of 250°C. The highly conductive metal layer 614 is made of tin-plated copper or silver-plated material. The adhesive between the magnetic material layer 612, the high-temperature resistant polymer layer 613, and the highly conductive metal layer 614 is silicone resin, which can withstand a temperature of 250°C, has good flexibility, and high compatibility with silicone rubber.

[0054] The above embodiments only represent several implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A preparation device for a high-temperature resistant insulating photovoltaic cable, comprising a preparation box (1), one end of the preparation box (1) is provided with an unwinding mechanism (2), an unwinding shaft (6) is arranged on the unwinding mechanism (2), a composite shielding strip (61) is wound on the unwinding shaft (6), a cutting mechanism (3) is installed inside the preparation box (1), and a heat setting mechanism (4) is arranged at one end of the cutting mechanism (3) away from the unwinding mechanism (2), characterized in that: The unwinding mechanism (2) includes a rubber pressing component (22). Above the rubber pressing component (22), there is a coating component (23). A rubber pressing shaft (221) is installed on the rubber pressing component (22). An annular groove (222) is formed on the surface of the rubber pressing shaft (221). The coating component (23) is used to coat an inner surface adhesive layer (611) on the composite shielding strip (61). The rubber pressing shaft (221) rolls the inner surface adhesive layer (611) along the length direction through the annular groove (222) to form a protruding layer (62). The cutting mechanism (3) includes a cutting component (31). Several groups of the output ends of the cutting component (31) are arranged corresponding to the protruding layer (62). The output end of the cutting component (31) cuts the composite shielding strip (61) into a lower strip (63) and an upper strip (64) along the corresponding protruding layer (62). On one side of the cutting positions of the lower strip (63) and the upper strip (64), there is a flattening mechanism (34). The flattening mechanism (34) is located on the side of the cutting component (31) away from the rubber pressing component (22). The flattening mechanism (34) is used to coat a side edge layer (65) on the surface of one side of the corresponding lower strip (63) and upper strip (64) at the cutting position.

2. The manufacturing device of a high-temperature resistant and insulating photovoltaic cable according to claim 1, characterized in that: A unwind rack (21) is installed on the unwinding mechanism (2). The unwind rack (21) is used to support the rotation of the unwind shaft (6). The coating component (23) includes a glue cylinder. A glue outlet head (231) is fixedly arranged below the glue cylinder. The bottom of the glue cylinder is rotatably connected with a first coating shaft (232). The first coating shaft (232) is located below the glue outlet head (231). The first coating shaft (232) rolls along the upper surface of the composite shielding strip (61).

3. The manufacturing device of a high-temperature resistant and insulating photovoltaic cable according to claim 2, characterized in that: The output end of the cutting component (31) is arranged corresponding to the protruding layer (62). The cutting component (31) includes a frame. A support seat (311) is installed on the frame. The output end of the cutting component (31) is a cutter (312). The cutter (312) is fixedly installed on the support seat (311). A cutting scroll (313) is rotatably installed on the frame. The cutting scroll (313) is located below the cutter (312). A cutting groove (316) is formed on the outer circumference of the cutting scroll (313). Several groups of the cutting grooves (316) are arranged corresponding to the cutter (312) and the protruding layer (62).

4. The manufacturing apparatus of a high-temperature resistant and insulating photovoltaic cable according to claim 3, wherein: The side surface of the support seat (311) corresponding to the cutter (312) is an inclined surface. A glue collecting port is arranged on the inclined surface. A rotary driver (314) is installed on the frame. The rotary driver (314) is used to drive the cutting scroll (313) to rotate. One end of the support seat (311) is fixedly connected with a conveying pipe (315). The conveying pipe (315) is connected with the flattening mechanism (34).

5. The preparation device of a high-temperature resistant and insulating photovoltaic cable according to claim 4, wherein: One side of the cutting assembly (31) is provided with an upper wire dividing assembly (32). Below one end of the upper wire dividing assembly (32), there is a lower wire dividing assembly (33). Guide shafts one (321) are installed on both the upper wire dividing assembly (32) and the lower wire dividing assembly (33). The lower strip (63) and the upper strip (64) are respectively divided into upper and lower layers and conveyed to the thermosetting mechanism (4) through the lower wire dividing assembly (33) and the upper wire dividing assembly (32).

6. The manufacturing apparatus of a high temperature resistant and insulating photovoltaic cable according to claim 5, characterized in that: The flattening mechanism (34) includes a rubber seat (341). A connecting seat (342) is fixedly installed on the rubber seat (341). A linear driver (343) and a side glue coating assembly (344) are respectively installed on both sides of the connecting seat (342). The side glue coating assembly (344) is used to coat edge glue on one side surface of the cutting part of the lower strip (63) and the upper strip (64). The edge coating layer (65) is formed by thermosetting the edge glue.

7. The manufacturing apparatus of a high temperature resistant and insulating photovoltaic cable according to claim 6, characterized in that: The side glue coating assembly (344) includes a mounting frame, and one side of the mounting frame is open. A cross frame (345) is slidably arranged inside the mounting frame. A glue coating shaft two (346) is installed on one side of the cross frame (345) corresponding to the lower strip (63). An upper glue plate (347) is also installed on the cross frame (345). The upper glue plate (347) is in movable contact with the surface of the glue coating shaft two (346). A glue conveying pipe (348) is connected between the upper glue plate (347) and the connecting seat (342). The edge glue inside the rubber seat (341) is conveyed to the upper glue plate (347) through the connecting seat (342) and the glue conveying pipe (348).

8. The manufacturing apparatus of a high temperature resistant and insulating photovoltaic cable according to claim 7, characterized in that: The thermosetting mechanism (4) includes a box body. A heating assembly (41) is installed on the box body. The output end of the heating assembly (41) is located inside the box body. The output end of the heating assembly (41) is a heater one (42) or a heater two (43). The height of the heater one (42) is lower than that of the heater two (43). An outlet (11) is opened at one end of the preparation box (1) far from the unwinding mechanism (2). A winding mechanism (5) is installed at one end of the thermosetting mechanism (4) close to the outlet (11). The composite shielding strip (61) unwound from the unwinding shaft (6) on the unwinding mechanism (2) is sequentially conveyed to the cutting mechanism (3), the thermosetting mechanism (4), and the winding mechanism (5). The lower strip (63) and the upper strip (64) after being processed by the thermosetting mechanism (4) are wound by the winding mechanism (5).

9. The manufacturing device of a high-temperature resistant and insulating photovoltaic cable according to claim 8, characterized in that: The winding mechanism (5) includes a mounting seat. A guide shaft two (51) is fixedly installed on the mounting seat. An upper winding shaft (52) and a lower winding shaft (53) are rotatably installed on the mounting seat, and the lower winding shaft (53) is located below the upper winding shaft (52). The upper strip (64) and the lower strip (63) are respectively wound around the outer circumferences of the upper winding shaft (52) and the lower winding shaft (53).

10. A high-temperature resistant and insulating photovoltaic cable prepared by using the preparation device described in claim 9, characterized in that: It includes a conductor (7), an insulating layer (8) is wound around the outer periphery of the conductor (7), a composite shielding strip (61) is provided on the outer periphery of the insulating layer (8), a sheath (9) is sleeved on the outer periphery of the composite shielding strip (61), the composite shielding strip (61) includes a base layer and a coating layer, the base layer includes a magnetic material layer (612), a high-temperature resistant polymer layer (613) and a highly conductive metal layer (614), and the high-temperature resistant polymer layer (613) is located between the magnetic material layer (612) and the highly conductive metal layer (614), the coating layer is composed of an inner surface adhesive layer (611), and the inner surface adhesive layer (611) is provided on the surface of the magnetic material layer (612).

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