A copper core insulated cable based on nano-graphene and its preparation equipment

Abstract

This invention discloses a copper core-isolated cable based on nano-graphene and its preparation equipment, relating to the field of cable technology. The copper core-isolated cable includes a shielding layer, of which three layers are provided. The shielding layer is filled with multiple conductors. An insulation layer is wrapped around the outside of the shielding layer. A pressure-resistant protection component is provided outside the insulation layer. The pressure-resistant protection component includes an isolation sheath. This invention forms a multi-layer composite protection system by sequentially setting the shielding layer, insulation layer, and pressure-resistant protection component outside the conductors, and using a combination of structures such as an isolation sheath, corrugated frame, protective sleeve, pressure-resistant strip, and steel wire rope. This allows the cable to maintain good mechanical and electrical properties under complex working conditions, and has the advantages of structural stability, strong pressure and tensile strength, and good shielding effect.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a copper core insulated cable based on nano-graphene and its manufacturing equipment. Background Technology

[0002] The copper core isolation cable based on nano-graphene is a cutting-edge composite conductive cable structure. Its core design integrates a nano-graphene functional layer on the outer layer of a traditional copper conductor to achieve excellent electromagnetic shielding, lightweighting, and signal integrity protection. The manufacturing process of the nano-graphene isolation cable is a multi-step, high-precision composite material processing process, mainly relying on two technical paths: chemical vapor deposition and conductive ink coating. It combines interface engineering and continuous production technology to achieve the coating of the copper conductor surface with a nano-graphene shielding layer.

[0003] In the Chinese patent application CN201811401503.4 entitled "A Cable Production Wire Bundling Machine", the patent is simple to operate and easy to use. It effectively realizes the purpose of bundling copper wires of different thicknesses with one wire bundling box, eliminating the need for workers to frequently change the wire divider for wire bundling work, ensuring the normal operation of the wire bundling box, and effectively solving the problem that the original wire bundling box could not bundle copper wires of different thicknesses. In existing technologies, when using a wire bundling machine to bundle nano-graphene wires, air jets are often placed at the wire threading reel to clean the wires and prevent dust from damaging the graphene shielding layer on the wire surface during wire bundling. However, existing direct-injection air jets have a single airflow direction, making it difficult to cover the wire surface with the blown air, resulting in poor dust removal. This leads to reduced cable production quality and poor equipment performance during wire bundling. Furthermore, existing wires often contain mechanical stress before bundling, and the residual mechanical stress during wire bundling can easily cause deformation of the finished wire bundle, affecting the quality of subsequent finished cables. Summary of the Invention

[0004] This invention provides a copper core insulated cable based on nano-graphene and its preparation equipment, which can effectively solve the problems in the prior art where, when using a wire bundling machine to bundle nano-graphene wires, the air blown by the existing dust cleaning equipment is difficult to cover the surface of the wires, resulting in poor dust cleaning effect. This leads to reduced cable production quality and poor equipment performance during wire bundling. Furthermore, the existing wires often contain mechanical stress before bundling, and the residual mechanical stress during wire bundling can easily cause deformation of the finished wire bundle, affecting the quality of the subsequent finished cable.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a copper core isolation cable based on nano-graphene, comprising a shielding layer, wherein three shielding layers are provided, the shielding layer is filled with multiple conductors, the shielding layer is wrapped with an insulation layer, and a pressure-resistant protection component is provided on the outside of the insulation layer, the pressure-resistant protection component including an isolation sheath; The insulation layer is wrapped with an isolation sleeve. Multiple corrugated sleeves are evenly spaced on the outside of the isolation sleeve. A protective sleeve is fitted between two adjacent corrugated sleeves on the outside of the isolation sleeve and on the same axis. An inner sleeve is fitted on the outside of the corrugated sleeves and the protective sleeve. A pressure-resistant strip is filled in the gap between the corrugated sleeves, the protective sleeve and the inner sleeve. Three pressure-resistant strips are provided. The center of the three isolation sleeves is filled with isolation ribs. A steel wire rope is embedded inside the pressure-resistant strip.

[0006] According to the above technical solution, the inner sheath is wrapped with an armor layer on the outside, and the armor layer is wrapped with an outer sheath on the outside.

[0007] According to the above technical solution, the insulating layer is made of cross-linked polyethylene (XLPE), the pressure-resistant strip is made of silicone rubber, the corrugated sleeve is made of stainless steel, and the protective sleeve is made of sponge. The isolation ribs filling the center of the isolation sheath are made of high-modulus polyamide material.

[0008] According to the above technical solution, the nano-graphene film coated on the outer layer of the conductor adopts an aqueous conductive ink formula, the nano-graphene content in the ink is 0.5%-2.0% by weight, and a uniform conductive layer is formed by chemical vapor deposition (CVD) or continuous coating. The armor layer is galvanized steel wire armor, and a flame-retardant filler material is provided between the armor layer and the outer sheath.

[0009] According to the above technical solution, a copper core isolation cable manufacturing equipment based on nano-graphene also includes an assembly frame, a quality improvement component, and a dehumidification maintenance component. The assembly frame is equipped with a quality improvement component, which includes a threading reel. The top of the assembly frame is equipped with a threading reel, and the surface of the threading reel is provided with threading holes. Multiple dust cleaning pipes are installed at equal intervals on one side of the threading reel. The inner walls of the dust cleaning pipes are welded with inner spiral blades at both ends. An outer pipe is connected to the middle of the outer side of the dust cleaning pipe. One end of the outer pipe is connected to one end of the turbofan tube through a screw hole. A negative pressure turbofan is rotatably installed inside the turbofan tube. The other end of the turbofan tube is connected to a negative pressure pipe. A magnetic suction interface is provided on the outside of the negative pressure pipe. An assembly frame is installed at one end of the dust removal pipe. Clamping frames are slidably installed at both ends inside the assembly frame. Clamping wheels are rotatably installed inside the clamping frames. A rotating rod is rotatably installed inside the negative pressure pipe. One end of the rotating rod is connected to one end of the rotating shaft of the negative pressure turbine fan. The other end of the rotating rod passes through the negative pressure pipe and is rotatably connected to one end of the assembly frame. An eccentric block is welded to the outside of the rotating rod.

[0010] According to the above technical solution, the clamping frame is provided with an adjusting slide rod, which is slidably connected to the end of the assembly frame. The clamping frame and the assembly frame are connected by an adjusting spring, which is located between two adjacent adjusting slide rods.

[0011] According to the above technical solution, a heat dissipation pipe is connected to one end of the outer middle of the dust cleaning pipe, and a heat dissipation elbow is connected to the other end of the heat dissipation pipe. An installation rod is welded to the other end of the dust cleaning pipe. A fixing hole is opened in the middle of the installation rod. A fixing tube is installed on one side of the wire threading reel near the wire threading hole. A fixing tube is also installed on the other side of the wire threading reel near the wire threading hole in the center of the wire threading reel. The number of fixing tubes is the same as the number of wire threading holes. A fixing pin is slidably connected in the middle of the fixing tube. A pull lug is connected to one end of the fixing pin. A fixing spring is connected between the pull lug and the outer side of the fixing tube. The installation rod is inserted into the interior of the adjacent fixing tube. The fixing pin passes through the adjacent fixing hole. The bottom of the threading reel is connected to an I-shaped plate, and the top of the assembly frame is equipped with a support rail. The I-shaped plate and the support rail are slidably connected. Positioning holes are opened at both ends of the I-shaped plate and the support rail, and positioning pins are embedded in the corresponding two positioning holes.

[0012] According to the above technical solution, a U-shaped frame is installed on one side of the assembly frame, and an outer circular tube is installed inside the U-shaped frame. An inner circular tube is connected to the middle of the outer circular tube, and the centers of the outer and inner circular tubes coincide. The inner sides of the outer and inner circular tubes are connected to docking magnetic rings through docking hoses. The number of docking magnetic rings is the same as the number of threading holes on the outer circumference of the threading reel. Several docking magnetic rings are magnetically connected to adjacent magnetic suction interfaces, and the remaining docking magnetic rings have sealing heads embedded inside. The bottom of the outer circular tube is connected to one end of the external air extraction pipe through a sealing valve, and the bottom of the inner circular tube is also connected to one end of the internal air extraction pipe through a sealing valve. The other ends of the external and internal air extraction pipes are connected to the suction end of an external vacuum cleaner.

[0013] According to the above technical solution, a dehumidification maintenance component is provided on one side of the U-shaped frame, and the dehumidification maintenance component includes a support frame; A support frame is installed on one side of the U-shaped frame, an air inlet box is installed on the top of the support frame, a dehumidifying round box is installed on the top of the air inlet box, and a connecting hole is opened at both ends of the dehumidifying round box. There are multiple connecting holes, and the number of connecting holes is the same as the number of wire holes and their positions correspond one-to-one. A rubber tube head is embedded inside several of the connecting holes, and a sealing plug is embedded inside the remaining connecting holes. The air inlet box is equipped with an electric heating wire, the top of the inner side of the support frame is equipped with an air pump, the air pump end is connected to the bottom of the air inlet box, the top of the dehumidification round box is equipped with an exhaust box, the top and bottom of the dehumidification round box are evenly provided with multiple flow equalization holes, and the top of the exhaust box is connected with an exhaust pipe. Both ends of the exhaust box are connected to drying hoses via air control valves. A drying iron ring is connected to the top of the drying hose, and the drying iron ring is the same size as the docking magnetic ring.

[0014] According to the above technical solution, four support groove wheels are installed on the inner side of the U-shaped frame. The support groove wheels are evenly distributed on the outer circumference of the outer tube. The outer tube is supported by the support groove wheels. The outer circumference of the outer tube is embedded in the support groove wheels. An arc-shaped rack is installed on one side of the outer tube. A swing motor is installed on one side of the U-shaped frame. The output end of the swing motor is connected to a swing gear. The swing gear meshes with the arc-shaped rack.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Equipped with a pressure-resistant protection system, this system consists of a shielding layer, an insulation layer, and a pressure-resistant protection component sequentially placed on the outside of the conductor. A multi-layered composite protection system is formed through the coordinated use of isolation sheaths, corrugated sleeves, protective sleeves, pressure-resistant strips, and steel wire ropes. The nano-graphene functional layer enhances the conductor's conductivity and electromagnetic shielding performance, reduces the impact of external electromagnetic interference on signal transmission, and improves signal transmission stability. The corrugated sleeve and protective sleeve form a buffer support structure, dispersing pressure and reducing localized stress concentration under external compression, thereby improving the cable's pressure resistance. The pressure-resistant strips are embedded with steel wire ropes, which not only enhance the overall tensile strength of the cable but also effectively prevent tensile deformation during laying and use. Isolation ribs are placed between the three isolation sheaths to maintain a stable spacing between conductor units, preventing mutual compression and displacement. Simultaneously, the armor layer and outer sheath further improve the cable's abrasion resistance, protection, and service life, enabling the cable to maintain good mechanical and electrical properties even under complex working conditions. It boasts advantages such as structural stability, strong pressure and tensile strength, and excellent shielding effect.

[0016] 2. Equipped with a quality enhancement component, during wire bundle processing, the external vacuum cleaner operates, reducing the air pressure inside the outer and inner tubes. Under the influence of this pressure difference, air enters the dust removal tube from both ends. Guided by the inner spiral blades, the air swirls into the center of the dust removal tube. The rotating air acts on the wire surface, blowing away dust. As the wire passes through the dust removal tube, the air swirls from both ends into the center, and the wire surface experiences wind forces from different directions, allowing dust to fall off more easily. This results in excellent dust removal. Furthermore, the longer length of the dust removal tube allows for a longer dust removal distance and a longer cleaning time for the wire, compared to existing technologies that directly... Using an air jet for dust removal provides a better cleaning effect. When the cleaning air passes through the inside of the turbine tube, the flowing air also drives the negative pressure turbine fan, rotating rod, and eccentric block to rotate. The rotation of the eccentric block causes the rotating rod to vibrate. Under the action of vibration transmission, the clamping wheel drives the clamped wire to vibrate. Under the action of vibration, the dust adsorbed on the surface of the wire is more easily dislodged, providing positive feedback for the cleaning of the wire and further improving the dust removal effect. During the subsequent wire bundling, dust is prevented from squeezing and damaging the graphene film on the surface of the wire, resulting in better cable production quality. Furthermore, under the action of vibration, the residual stress in the wire can be further eliminated, preventing the single wire from springing back and deforming after wire bundling, further improving the cable quality. The clamping frame is equipped with an adjusting slide rod, which is slidably connected to the end of the assembly frame. The clamping frame and the assembly frame are connected by an adjusting spring. The elastic deformation of the adjusting spring can change the distance between two adjacent clamping wheels, allowing the clamping wheels to clamp wires of different diameters. The equipment has a wide range of applications. During installation, pull the fixing pin by hand using the pull lug. This compresses the fixing spring, allowing the installation rod at one end of the dust cleaning pipe to be inserted into the fixing tube. Once the fixing hole aligns with the fixing pin, release the fixing pin. The fixing spring will then spring back, and the fixing pin will pass through the fixing hole, thus securing the dust cleaning pipe in place. To disassemble the dust cleaning pipe, simply pull the lug to remove the fixing pin from the fixing hole, and then remove the installation rod from the fixing tube. The dust cleaning pipe is easy and quick to install and remove, allowing for flexible adjustments based on cable processing needs. This broadens the applicability of the equipment, and the flexible installation and removal of the dust cleaning pipe also facilitates daily maintenance.

[0017] 3. Equipped with a dehumidification maintenance component, the cleaned wires enter the dehumidification box. The heating wire and air pump operate, and the air, heated by the heating wire, passes through the equalization hole at the bottom of the dehumidification box and enters the box. The flowing hot air blows on the surface of the wires, ensuring their dryness. This ensures the quality of the cable during subsequent wire bundling processing. The hot air also carries away any residual dust on the wire surface, further ensuring the quality of the cleaning. The connecting holes on both sides of the dehumidification box correspond one-to-one with the wire holes. By flexibly installing rubber tube heads and sealing plugs, the dehumidification box can be used for wire bundling processing with different processing methods, offering high flexibility and a wide range of applications. When the interior of the outer and inner circular tubes needs cleaning, the sealing heads are flexibly installed to seal the connecting magnetic rings of the outer and inner circular tubes, allowing cleaning water to fill most of the space inside the outer and inner circular tubes. Under the support of the support groove wheel, the outer and inner circular tubes are driven to rotate and swing back and forth by the swing motor, thus cleaning the outer and inner circular tubes. After cleaning, the cleaning water is drained. Then, all the sealing heads are removed, and the two drying iron rings are connected to one of the connecting magnetic rings on the outer and inner circular tubes, respectively. The heating wire and air pump are activated, and hot air enters the interior of the outer and inner circular tubes. The hot air is used to dry the cleaned outer and inner circular tubes. The combination of structural components in the quality improvement component and the dehumidification maintenance component enables the rapid cleaning and drying of the outer and inner circular tubes. The equipment is convenient and quick to clean and maintain, and has better performance.

[0018] In summary, the dust removal tube in the quality improvement component can be quickly disassembled and installed. Utilizing the magnetic attraction of the connecting magnetic ring and magnetic interface, it enables rapid connection between the outer and inner round tubes and the dust removal tube. The equipment allows for flexible adjustment of components according to cable processing needs, offering high operational flexibility. When the outer and inner round tubes require cleaning, the hot air generated in the dehumidification maintenance component can dry them, facilitating equipment maintenance. Furthermore, the dehumidification maintenance component removes moisture from the conductor surface, further ensuring the cleanliness of the conductor surface. The two components working together effectively guarantee the quality of cable processing during cable bundle fabrication. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram: Figure 1 This is a schematic diagram of the main structure of the cable of the present invention; Figure 2 This is a schematic diagram of the installation structure of the anti-compression strip of the present invention; Figure 3 This is a schematic diagram of the installation structure of the wave sleeve of the present invention; Figure 4 This is a schematic diagram of the main structure of the cable manufacturing equipment of the present invention; Figure 5 This is a schematic diagram of the quality improvement component of the present invention; Figure 6 This is a schematic diagram of the installation structure of the outer circular tube of the present invention; Figure 7 This is a schematic diagram of the installation structure of the threading reel of the present invention; Figure 8 This is a schematic diagram of the installation structure of the dust removal pipe of the present invention; Figure 9 This is a schematic diagram of the installation structure of the heat dissipation pipe of the present invention; Figure 10 This is a schematic diagram of the installation structure of the fixing pin of the present invention; Figure 11 This is a schematic diagram of the installation structure of the clamping wheel of the present invention; Figure 12 This is a schematic diagram of the installation structure of the arc-shaped rack of the present invention; Figure 13 This is a schematic diagram of the installation structure of the dehumidifying round box of the present invention; The diagram is labeled: 1. Shielding layer; 2. Conductor; 3. Insulating layer; 4. Compression-resistant protective components; 401. Isolation sleeve; 402. Corrugated sleeve frame; 403. Protective sleeve; 404. Inner sleeve; 405. Compression-resistant strip; 406. Steel wire rope; 407. Armor layer; 408. Outer sleeve; 409. Isolation ribs; 5. Assembly rack; 6. Quality Improvement Components; 601. Cable Reel; 602. Cable Hole; 603. Dust Cleaning Tube; 604. Inner Spiral Blade; 605. Outer Connector; 606. Turbine Fan Tube; 607. Negative Pressure Turbine Fan; 608. Negative Pressure Tube; 609. Magnetic Connector; 610. Rotating Rod; 611. Eccentric Block; 612. Assembly Frame; 613. Clamping Frame; 614. Clamping Wheel; 615. Adjusting Slide Rod; 616. Adjusting Spring; 617. Heat Dissipation Tube; 618. Heat Dissipation Elbow 619. Installing rod; 620. Fixing hole; 621. Fixing tube; 622. Fixing pin; 623. Pull lug; 624. Fixing spring; 625. I-shaped plate; 626. Support rail; 627. Positioning hole; 628. Positioning pin; 629. U-shaped frame; 630. Outer tube; 631. Inner tube; 632. Connecting hose; 633. Connecting magnetic ring; 634. Sealing head; 635. Sealing valve; 636. External air extraction pipe; 637. Internal air extraction pipe; 7. Dehumidification maintenance components; 701. Support frame; 702. Air inlet box; 703. Dehumidification round box; 704. Connecting hole; 705. Rubber hose head; 706. Sealing plug; 707. Heating wire; 708. Air pump; 709. Exhaust box; 710. Flow equalization hole; 711. Exhaust pipe; 712. Air control valve; 713. Drying hose; 714. Drying iron ring; 715. Support groove wheel; 716. Arc rack; 717. Oscillating motor; 718. Oscillating gear. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example 1: like Figure 1-3 As shown, this invention provides a copper core isolation cable technology solution based on nano-graphene, including a shielding layer 1, which has three layers. The shielding layer 1 is filled with multiple conductors 2, which are the same as the wires described later. The surface of the conductors 2 is covered with a nano-graphene film. By integrating a nano-graphene functional layer on the outer layer of the conductors 2, excellent electromagnetic shielding, lightweighting and signal integrity protection are achieved. The shielding layer 1 is wrapped with an insulation layer 3. A pressure-resistant protection component 4 is provided on the outer side of the insulation layer 3. The pressure-resistant protection component 4 includes an isolation sheath 401, a corrugated frame 402, a protective sleeve 403, an inner sheath 404, a pressure-resistant strip 405, a steel wire rope 406, an armor layer 407, an outer sheath 408 and an isolation rib 409. The outer side of the insulation layer 3 is wrapped with an isolation sleeve 401. Multiple corrugated sleeves 402 are evenly spaced around the outer side of the isolation sleeve 401. A protective sleeve 403 is fitted between two adjacent corrugated sleeves 402 located on the same axial direction outside the isolation sleeve 401. An inner sleeve 404 is fitted around the outer side of the corrugated sleeves 402 and the protective sleeves 403. Three pressure-resistant strips 405 are filled in the gaps between the corrugated sleeves 402, the protective sleeves 403, and the inner sleeve 404. The centers of the three isolation sleeves 401 are filled with... The cable has a steel wire rope 406 embedded inside the reinforcing bar 409 and the pressure-resistant bar 405. The inner sheath 404 is wrapped with an armor layer 407, and the armor layer 407 is wrapped with an outer sheath 408. The corrugated sleeve 402 is made of stainless steel and has good pressure resistance. The protective sleeve 403 is made of sponge and has good elasticity. The pressure-resistant bar 405 is made of elastic rubber. The corrugated sleeve 402, the protective sleeve 403 and the pressure-resistant bar 405 work together to improve the pressure resistance of the cable. The steel wire rope 406 can improve the tensile strength of the cable.

[0023] The insulation layer 3 is made of cross-linked polyethylene (XLPE), the pressure-resistant strip 405 is made of silicone rubber, the corrugated sleeve 402 is made of stainless steel, and the protective sleeve 403 is made of sponge material, in order to improve the cable's pressure resistance and mechanical stability. The isolation ribs 409 in the center of the isolation sheath 401 are made of high-modulus polyamide material to further enhance the longitudinal and transverse compressive strength of the cable and ensure the stability of the conductor arrangement.

[0024] The nano-graphene film coated on the outer layer of conductor 2 uses an aqueous conductive ink formula. The nano-graphene content in the ink is 0.5%-2.0% by weight. A uniform conductive layer is formed by chemical vapor deposition (CVD) or continuous coating to enhance the electromagnetic shielding performance and signal integrity of the conductor. The armor layer 407 is made of galvanized steel wire, and flame-retardant filler material is placed between the armor layer 407 and the outer sheath 408 to enhance the cable's resistance to mechanical damage and flame-retardant performance.

[0025] Example 2: like Figure 4-13 As shown, the present invention also provides a technical solution for a copper core isolation cable preparation equipment based on nano-graphene, which further includes an assembly frame 5, a quality improvement component 6, and a dehumidification maintenance component 7. Assembly frame 5 is equipped with a quality improvement component 6, which includes a wire threading reel 601, a wire threading hole 602, a dust cleaning pipe 603, an inner spiral blade 604, an outer pipe 605, a turbo fan tube 606, a negative pressure turbo fan 607, a negative pressure pipe 608, a magnetic interface 609, a rotating rod 610, an eccentric block 611, an assembly frame 612, a clamping frame 613, a clamping wheel 614, an adjusting slide rod 615, an adjusting spring 616, and a heat dissipation pipe 617. 618, heat dissipation elbow, 619, mounting rod, 620, fixing hole, 621, fixing pin, 622, pull lug, 624, fixing spring, I-shaped plate, 625, support rail, 626, positioning hole, 627, positioning pin, 628, U-shaped frame, 629, outer round tube, 630, inner round tube, 631, connecting hose, 632, connecting magnetic ring, 633, sealing head, 634, sealing valve, 635, external air extraction pipe, 636, and internal air extraction pipe, 637; A wire threading reel 601 is mounted on the top of the assembly frame 5. Wire threading holes 602 are formed on the surface of the wire threading reel 601. Multiple dust removal tubes 603 are evenly spaced on one side of the wire threading reel 601. Multiple wire threading holes 602 are provided, and the edges of the wire threading holes 602 are rounded to reduce friction between the wire and the hole, preventing damage to the graphene film on the wire surface. The central axis of the dust removal tube 603 is collinear with the center of the adjacent wire threading hole 602. Above, a single wire passes through the wire hole 602 and can pass through the center of the dust cleaning tube 603. The inner walls of the dust cleaning tube 603 are welded with inner spiral blades 604 at both ends. The outer side of the dust cleaning tube 603 is connected to the middle of the outer pipe 605. One end of the outer pipe 605 is connected to one end of the turbine tube 606 through a screw hole. A negative pressure turbine fan 607 is rotatably installed inside the turbine tube 606. The other end of the turbine tube 606 is connected to a negative pressure tube 608. A magnetic interface 609 is provided on the outside of the negative pressure tube 608. A U-shaped frame 629 is installed on one side of the assembly frame 5. An outer circular tube 630 is installed inside the U-shaped frame 629. An inner circular tube 631 is connected to the middle of the outer circular tube 630. The centers of the outer circular tube 630 and the inner circular tube 631 coincide. The inner sides of the outer circular tube 630 and the inner circular tube 631 are connected to docking magnetic rings 633 through docking flexible hoses 632. The number of docking magnetic rings 633 is the same as the number of wire holes 602 on the outer periphery of the wire threading reel 601. The magnetic ring 633 is magnetically connected to the adjacent magnetic interface 609. The remaining magnetic rings 633 have embedded sealing heads 634. The bottom of the outer tube 630 is connected to one end of the outer suction pipe 636 via a sealing valve 635. The bottom of the inner tube 631 is also connected to one end of the inner suction pipe 637 via a sealing valve 635. The other ends of both the outer suction pipe 636 and the inner suction pipe 637 are connected to the suction end of the external vacuum cleaner. When the external vacuum cleaner is started, the external... The air pressure inside the inner tube 630 and the outer tube 631 decreases. Under the action of the pressure difference, external air can enter the outer tube 630 and the inner tube 631 through the dust cleaning tube 603, the outer tube 605, the turbine tube 606, the negative pressure tube 608, the docking magnetic ring 633, and the docking hose 632. The negative pressure tube 608 is made of iron. Under the magnetic attraction, the docking magnetic ring 633 can quickly dock or separate from the magnetic interface 609, which is convenient and quick. The sealing head 634 is used to seal the unused docking magnetic ring 633. When the vacuum cleaner is started, it prevents external air from entering the outer tube 630 or the inner tube 631 through the unused docking magnetic ring 633. This ensures that external air can only flow through the dust cleaning tube 603, the outer tube 605, the turbine tube 606, the negative pressure tube 608, the docking magnetic ring 633, and the docking hose 632 in sequence to enter the outer tube 630 and the inner tube 631. A dust removal pipe 603 has an assembly frame 612 installed at one end. Clamping frames 613 are slidably installed at both ends inside the assembly frame 612. Clamping wheels 614 are rotatably installed inside the clamping frames 613. The clamping frames 613 are equipped with adjusting slide rods 615, which are slidably connected to the end of the assembly frame 612. The clamping frames 613 and the assembly frame 612 are connected by an adjusting spring 616, which is located between two adjacent adjusting slide rods 615. The elastic deformation of the adjusting spring 616 allows the distance between two adjacent clamping wheels 614 to change, enabling the clamping wheels 614 to clamp wires of different diameters, thus having a wide range of applications. A rotating rod 610 is rotatably installed inside the negative pressure pipe 608. One end of the rotating rod 610 is connected to one end of the rotating shaft of the negative pressure turbine fan 607, and the other end of the rotating rod 610 passes through the negative pressure pipe 608 and is rotatably connected to one end of the assembly frame 612. An eccentric block 611 is welded to the outside of the rotating rod 610. The dust cleaning tube 603 is connected to one end of a heat dissipation tube 617 in the middle of its outer side. The other end of the heat dissipation tube 617 is connected to a heat dissipation elbow 618. When the air pressure inside the dust cleaning tube 603 decreases, external air can enter the dust cleaning tube 603 through the heat dissipation elbow 618 and the heat dissipation tube 617. The open end of the heat dissipation elbow 618 is close to the adjacent wire hole 602. When the air enters the heat dissipation elbow 618, it will drive the air around the wire hole 602 to flow. The flowing air can carry away the heat generated by friction between the wire hole 602 and the wire, avoid heat accumulation at the location of the wire hole 602, reduce the aging speed of the wire hole 602, and also avoid high temperature damage to the graphene film on the surface of the wire. The other end of the dust cleaning tube 603 is welded with an installation rod 619. The installation rod 619 has a fixing hole 620 in the middle. A fixing tube 621 is installed on one side of the cable reel 601 near the cable hole 602. A fixing tube 621 is also installed on the other side of the cable reel 601 near the cable hole 602 in the center of the cable reel 601. The number of fixing tubes 621 is the same as the number of cable holes 602. When a wire passes through the cable hole 602 in the center of the cable reel 601, due to the spatial limitation of the cable hole 602, a dust cleaning tube 603 corresponding to the cable hole 602 in the center of the cable reel 601 is fixed separately on the other side of the cable reel 601. During dust cleaning, the magnetic interface 609 corresponding to the dust cleaning tube 603 can be directly connected to the suction end of an external vacuum cleaner through the pipe. A fixing pin 622 is slidably connected to the middle of the fixing cannula 621. One end of the fixing pin 622 is connected to a pull lug 623. A fixing spring 624 is connected between the pull lug 623 and the outside of the fixing cannula 621. The installation rod 619 is inserted into the interior of the adjacent fixing cannula 621. The fixing pin 622 passes through the adjacent fixing hole 620. The fixing spring 624 can stably fix the fixing pin 622 and prevent the fixing pin 622 from dislodging from the fixing cannula 621. Applying a pulling force by holding the pull lug 623 can fix the fixing pin. When the fixing pin 622 moves out of the fixing hole 620, the mounting rod 619 can move out of the fixing tube 621, which facilitates the disassembly of the dust cleaning tube 603. When installing the dust cleaning tube 603, the mounting rod 619 is inserted into the fixing tube 621. When the fixing hole 620 is aligned with the fixing pin 622, the fixing pin 622 is released, the fixing spring 624 rebounds, and the fixing pin 622 passes through the fixing hole 620, thus realizing the fixed installation of the dust cleaning tube 603, which is convenient and quick. The bottom of the threading reel 601 is connected to an I-shaped plate 625, and the top of the assembly frame 5 is equipped with a support rail 626. The I-shaped plate 625 and the support rail 626 are slidably connected. Both ends of the I-shaped plate 625 and the support rail 626 are provided with positioning holes 627. Positioning pins 628 are embedded in the corresponding two positioning holes 627. When the threading reel 601 needs maintenance, the positioning pins 628 can be removed, and the I-shaped plate 625 can be quickly moved out of the support rail 626, which is convenient and quick. A dehumidification maintenance component 7 is provided on one side of the U-shaped frame 629. The dehumidification maintenance component 7 includes a support frame 701, an air inlet box 702, a dehumidification round box 703, a connecting hole 704, a rubber tube head 705, a sealing plug 706, a heating wire 707, an air pump 708, an exhaust box 709, a flow equalization hole 710, an exhaust pipe 711, an air control valve 712, a drying hose 713, a drying iron ring 714, a support grooved wheel 715, an arc-shaped rack 716, a swing motor 717, and a swing gear 718. A support frame 701 is installed on one side of the U-shaped frame 629. An air inlet box 702 is installed on the top of the support frame 701. A dehumidifying round box 703 is installed on the top of the air inlet box 702. Both ends of the dehumidifying round box 703 have connecting holes 704. There are multiple connecting holes 704. The number of connecting holes 704 is the same as the number of wire holes 602 and their positions correspond one-to-one. Rubber tube heads 705 are embedded inside some of the connecting holes 704, and sealing plugs 706 are embedded inside the remaining connecting holes 704. The wire passes through the rubber tube heads 705 at both ends of the dehumidifying round box 703. The rubber tube heads 705 are used to protect the wire. The rubber tube heads 705 are made of flexible rubber. When the wire passes through the dehumidifying round box 703, they can protect the wire. Unused connecting holes 704 are sealed by sealing plugs 706 to prevent hot air from being discharged from unused connecting holes 704, so that hot air can smoothly enter the exhaust box 709 from the dehumidifying round box 703. An electric heating wire 707 is installed inside the air inlet box 702. An air pump 708 is installed on the top of the inner side of the support frame 701. The air pump 708 is connected to the bottom of the air inlet box 702. An exhaust box 709 is installed on the top of the dehumidification round box 703. Multiple flow equalization holes 710 are evenly opened on the top and bottom of the dehumidification round box 703. An exhaust pipe 711 is connected to the top of the exhaust box 709. Both ends of the exhaust box 709 are connected to drying hoses 713 via air control valves 712. A drying iron ring 714 is connected to the top of the drying hose 713. The drying iron ring 714 is the same size as the docking magnetic ring 633. Four support grooved wheels 715 are installed inside the U-shaped frame 629. The support grooved wheels 715 are evenly distributed around the outer circumference of the outer circular tube 630. The outer circular tube 630 is supported by the support grooved wheels 715. The outer circumference of the outer circular tube 630 is embedded inside the support grooved wheels 715. An arc-shaped rack 716 is installed on one side of the outer circular tube 630. A swing motor 717 is installed on one side of the U-shaped frame 629. The output end of the swing motor 717 is connected to a swing gear 718. The swing gear 718 meshes with the arc-shaped rack 716. Under the action of gear drive, when the swing motor 717 drives the swing gear 718 to rotate, the outer circular tube 630 and the inner circular tube 631 can rotate. The input ends of the heating wire 707, the air pump 708 and the swing motor 717 are electrically connected to the output end of the external controller. The input end of the external controller is electrically connected to the output end of the external power supply. The controller can control various electrical components, which facilitates the automated control of the equipment.

[0026] The working principle and usage process of this invention are as follows: Install the corresponding dust removal tube 603 according to the cable processing requirements. When installing the dust removal tube 603, pull the fixing pin 622 with the hand pull lug 623, compressing the fixing spring 624. Insert the installation rod 619 at one end of the dust removal tube 603 into the fixing tube 621. When the fixing hole 620 is aligned with the fixing pin 622, release the fixing pin 622, and the fixing spring 624 rebounds. The fixing pin 622 passes through the fixing hole 620, thus fixing the dust removal tube 603. When it is necessary to disassemble the dust removal tube 603, pull the fixing pin 622 out of the fixing hole 620 with the hand pull lug 623, and then remove the installation rod 619 out of the fixing tube 621. The dust removal tube 603 is easy and quick to install and disassemble, allowing for flexible adjustments according to cable processing requirements. It has good performance and facilitates daily maintenance of the dust removal tube 603. After the dust removal tube 603 is installed, the corresponding docking magnetic ring 633 is docked with the magnetic interface 609 using magnetic attraction. Unused docking magnetic rings 633 are sealed with plugs 634. Then, rubber tube heads 705 are installed inside the connecting holes 704 to be used, and unused connecting holes 704 are sealed with plugs 706. After preparation, the wire to be processed is passed through the corresponding wire hole 602 and dust removal tube 603, then the wire is passed between the two clamping wheels 614, then the wire is passed through the rubber tube head 705 corresponding to the connecting hole 704, and finally the wire is introduced into the wire bundling machine. Next, the wire bundling machine operates, and the external vacuum cleaner starts. The air pressure inside the outer tube 630 and the inner tube 631 decreases. Under the action of the pressure difference, external air enters the outer tube 630 and the inner tube 631 through the dust removal pipe 603, the outer connecting pipe 605, the turbine fan pipe 606, the negative pressure pipe 608, the docking magnetic ring 633, and the docking hose 632. The inner wall of the dust removal pipe 603 is provided with inner spiral blades 604 at both ends. After the air enters the dust removal pipe 603, under the guidance of the inner spiral blades 604, the air enters the middle of the dust removal pipe 603 in a swirling manner. The rotating air acts on the surface of the wire, applying forces in different directions to the surface of the wire. The dust adsorbed on the surface of the wire can be quickly removed from the surface of the wire under the action of the wind. The dust, driven by the airflow, flows sequentially through the outer tube 605, the turbine tube 606, the negative pressure tube 608, the docking magnetic ring 633, and the docking hose 632, then enters the outer round tube 630 and the inner round tube 631, and finally enters the vacuum cleaner through the outer air extraction tube 636 and the inner air extraction tube 637, thus cleaning the wire. As the wire passes through the dust cleaning tube 603, the air enters the middle of the dust cleaning tube 603 in a swirling manner from both ends. The surface of the wire is subjected to wind forces from different directions, allowing the dust to fall off more easily, resulting in a better dust cleaning effect. Furthermore, by utilizing the length of the dust cleaning tube 603, the dust cleaning journey is longer, allowing for a longer dust cleaning time for the wire. Compared to the existing technology that directly uses an air jet for dust cleaning, this method has a better dust cleaning effect. When the cleaning air passes through the inside of the turbine tube 606, the flowing air also drives the negative pressure turbine fan 607 to rotate. The rotation of the negative pressure turbine fan 607 also drives the rotating rod 610 to rotate. The rotation of the rotating rod 610 drives the eccentric block 611 to rotate. The rotation of the eccentric block 611 causes the rotating rod 610 to vibrate. The rotating rod 610 is connected to the assembly frame 612. Under the action of vibration transmission, the clamping wheel 614 drives the clamped wire to vibrate. Under the action of vibration, the dust adsorbed on the surface of the wire is more likely to fall off, further improving the dust removal effect. In the subsequent wire bundling, it avoids the dust squeezing and damaging the graphene film on the surface of the wire, making the cable production quality better. Moreover, under the action of vibration, the residual stress of the wire can be further eliminated. After wire bundling, it avoids the single wire rebound deformation, further improving the cable quality. The clamping frame 613 is equipped with an adjusting slide rod 615, which is slidably connected to the end of the assembly frame 612. The clamping frame 613 and the assembly frame 612 are connected by an adjusting spring 616, which is located between two adjacent adjusting slide rods 615. The elastic deformation of the adjusting spring 616 allows the distance between two adjacent clamping wheels 614 to change, enabling the clamping wheels 614 to clamp wires of different diameters. The equipment has a wide range of applications. After dust removal, the wire enters the dehumidification box 703. The heating wire 707 and the air pump 708 are running. At this time, the air control valve 712 is closed. The air delivered by the air pump 708 enters the air inlet box 702. After being heated by the heating wire 707, the air passes through the equalization hole 710 at the bottom of the dehumidification box 703 and enters the dehumidification box 703. Then, it enters the exhaust box 709 through the equalization hole 710 at the top of the dehumidification box 703 and is finally discharged through the exhaust pipe 711. When the wire passes through the dehumidification box 703, the flowing hot air blows on the surface of the wire, carrying away the moisture on the surface of the wire and ensuring the dryness of the wire. This ensures the quality of the cable during subsequent wire bundling processing. In addition, the hot air blowing on the surface of the wire also carries away the dust remaining on the surface of the wire, further ensuring the quality of dust removal. When the interior of the outer tube 630 and inner tube 631 needs cleaning, all cleaning pipes 603 are disassembled. The sealing head 634 is used to seal the mating magnetic rings 633 of the outer tube 630 and inner tube 631, leaving only one mating magnetic ring 633 at the top. Cleaning water is then injected into the interior of the outer tube 630 and inner tube 631. At this time, the sealing valve 635 is closed. When the injected cleaning water has filled most of the space inside the outer tube 630 and inner tube 631, the cleaning is stopped. After stopping the injection of cleaning water, the last mating magnetic ring 633 is sealed using the sealing head 634. After sealing, the swing motor 717 runs, and the swing gear 718 meshes with the arc-shaped rack 716. Under the driving action of the gear and the supporting action of the support groove wheel 715, the swing motor 717 drives the outer tube 630 and the inner tube 631 to reciprocate and swing. The reciprocating rotation of the outer tube 630 and the inner tube 631 causes the cleaning water inside to slosh, and the sloshing of the cleaning water is used to achieve... After cleaning the outer tube 630 and inner tube 631, disconnect the outer suction pipe 636 and inner suction pipe 637 from the external vacuum cleaner's suction end, open the sealing valve 635 to drain the cleaning water, then remove all the sealing heads 634, open the air control valve 712, and seal the exhaust pipe 711. Connect the two drying iron rings 714 to a mating magnetic ring 633 on the outer tube 630 and inner tube 631 respectively. Operate the heating wire 707 and the air pump 708. Okay, hot air enters the outer round tube 630 and inner round tube 631 through the drying hose 713 and the docking hose 632. The hot air dries the cleaned outer round tube 630 and inner round tube 631. When the outer round tube 630 and inner round tube 631 need to be cleaned, the structural components in the mass lifting component 6 and the dehumidification maintenance component 7 work together to quickly clean and dry the outer round tube 630 and inner round tube 631. The equipment is convenient and quick to clean and maintain, and has better performance.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A copper core insulated cable based on nano-graphene, comprising a shielding layer (1), characterized in that, The shielding layer (1) is provided in three parts. The shielding layer (1) is filled with multiple conductors (2). The shielding layer (1) is wrapped with an insulating layer (3) on the outside. The insulating layer (3) is provided with a pressure-resistant protection component (4) on the outside. The pressure-resistant protection component (4) includes an isolation sleeve (401). The insulation layer (3) is wrapped with an isolation sleeve (401) on the outside. Multiple corrugated sleeves (402) are sleeved on the outside of the isolation sleeve (401) at equal intervals. A protective sleeve (403) is sleeved between two adjacent corrugated sleeves (402) on the outside of the isolation sleeve (401) and located in the same axial direction. An inner sleeve (404) is sleeved on the outside of the corrugated sleeves (402) and the protective sleeves (403). A pressure-resistant strip (405) is filled in the gap between the corrugated sleeves (402), the protective sleeves (403) and the inner sleeve (404). There are three pressure-resistant strips (405). The center of the three isolation sleeves (401) is filled with an isolation rib (409). A steel wire rope (406) is embedded inside the pressure-resistant strip (405).

2. The copper core insulated cable based on nano-graphene according to claim 1, characterized in that, The inner sheath (404) is wrapped with an armor layer (407) on the outside, and the armor layer (407) is wrapped with an outer sheath (408) on the outside.

3. The copper core insulated cable based on nano-graphene according to claim 2, characterized in that, The insulating layer (3) is made of cross-linked polyethylene (XLPE), the pressure-resistant strip (405) is made of silicone rubber, the corrugated sleeve (402) is made of stainless steel, and the protective sleeve (403) is made of sponge. The isolation ribs (409) filling the center of the isolation sheath (401) are made of high modulus polyamide material.

4. The copper core insulated cable based on nano-graphene according to claim 2, characterized in that, The nano-graphene film coated on the outer layer of the conductor (2) adopts an aqueous conductive ink formula, the nano-graphene content in the ink is 0.5%-2.0% by weight, and a uniform conductive layer is formed by chemical vapor deposition (CVD) or continuous coating. The armor layer (407) is galvanized steel wire armor, and flame-retardant filler material is provided between the armor layer (407) and the outer sheath (408).

5. A device for manufacturing copper core insulated cables based on nano-graphene, characterized in that, The equipment for preparing a copper core insulated cable based on nano-graphene according to any one of claims 1-4 further includes an assembly frame (5), a quality improvement component (6), and a dehumidification maintenance component (7). The assembly frame (5) is provided with a quality lifting component (6), which includes a threading reel (601). The assembly frame (5) is equipped with a threading reel (601) on top. The threading reel (601) has threading holes (602) on its surface. Multiple dust cleaning pipes (603) are installed at equal intervals on one side of the threading reel (601). The inner walls of the dust cleaning pipes (603) are welded with inner spiral blades (604) at both ends. An outer pipe (605) is connected to the middle of the outer side of the dust cleaning pipes (603). One end of the outer pipe (605) is connected to one end of the turbofan tube (606) through a screw hole. A negative pressure turbofan (607) is rotatably installed inside the turbofan tube (606). The other end of the turbofan tube (606) is connected to a negative pressure pipe (608). A magnetic suction interface (609) is provided on the outside of the negative pressure pipe (608). One end of the dust removal pipe (603) is equipped with an assembly frame (612). The two ends of the assembly frame (612) are slidably installed with clamping frames (613). The clamping frames (613) are rotatably installed with clamping wheels (614). The negative pressure pipe (608) is rotatably installed with a rotating rod (610). One end of the rotating rod (610) is connected to one end of the rotating shaft of the negative pressure turbine fan (607). The other end of the rotating rod (610) passes through the negative pressure pipe (608) and is rotatably connected to one end of the assembly frame (612). An eccentric block (611) is welded to the outside of the rotating rod (610).

6. The equipment for preparing a copper core insulated cable based on nano-graphene according to claim 5, characterized in that, The clamping frame (613) is provided with an adjusting slide rod (615), which is slidably connected to the end of the assembly frame (612). The clamping frame (613) and the assembly frame (612) are connected by an adjusting spring (616), which is located between two adjacent adjusting slide rods (615).

7. The equipment for preparing a copper core insulated cable based on nano-graphene according to claim 5, characterized in that, The dust cleaning pipe (603) has one end of a heat dissipation pipe (617) connected to the middle of its outer side. The other end of the heat dissipation pipe (617) is connected to a heat dissipation elbow (618). The other end of the dust cleaning pipe (603) is welded with an installation rod (619). The installation rod (619) has a fixing hole (620) in the middle. A fixing tube (621) is installed on one side of the wire threading reel (601) near the wire threading hole (602). On the other side of the wire threading reel (601) and near the center of the wire threading reel (601), a wire threading hole (602) is installed... A fixed insertion tube (621) is also installed on the side. The number of fixed insertion tubes (621) is the same as the number of wire holes (602). A fixing pin (622) is slidably connected in the middle of the fixed insertion tube (621). A pull lug (623) is connected to one end of the fixing pin (622). A fixing spring (624) is connected between the pull lug (623) and the outside of the fixed insertion tube (621). The installation rod (619) is inserted into the interior of the adjacent fixed insertion tube (621). The fixing pin (622) passes through the adjacent fixing hole (620). The bottom of the threading reel (601) is connected to an I-shaped plate (625), and the top of the assembly frame (5) is equipped with a support rail (626). The I-shaped plate (625) and the support rail (626) are slidably connected. Both ends of the I-shaped plate (625) and the support rail (626) are provided with positioning holes (627), and positioning pins (628) are embedded in the corresponding two positioning holes (627).

8. The equipment for preparing a copper core insulated cable based on nano-graphene according to claim 5, characterized in that, A U-shaped frame (629) is installed on one side of the assembly frame (5). An outer round tube (630) is installed inside the U-shaped frame (629). An inner round tube (631) is connected in the middle of the outer round tube (630). The centers of the outer round tube (630) and the inner round tube (631) coincide. Both the inner sides of the outer round tube (630) and the inner round tube (631) are connected to docking magnetic rings (633) through docking hoses (632). The number of docking magnetic rings (633) corresponds to the number of wire holes (602) on the outer periphery of the wire threading reel (601). The same number of docking magnetic rings (633) are magnetically connected to adjacent magnetic interfaces (609), and the remaining docking magnetic rings (633) have a sealing head (634) embedded inside. The bottom of the outer round tube (630) is connected to one end of the outer air extraction tube (636) through a sealing valve (635), and the bottom of the inner round tube (631) is also connected to one end of the inner air extraction tube (637) through a sealing valve (635). The other ends of the outer air extraction tube (636) and the inner air extraction tube (637) are connected to the suction end of the external vacuum cleaner.

9. The equipment for preparing a copper core insulated cable based on nano-graphene according to claim 8, characterized in that, A dehumidification maintenance component (7) is provided on one side of the U-shaped frame (629), and the dehumidification maintenance component (7) includes a support frame (701). A support frame (701) is installed on one side of the U-shaped frame (629). An air inlet box (702) is installed on the top of the support frame (701). A dehumidifying round box (703) is installed on the top of the air inlet box (702). A connecting hole (704) is provided at both ends of the dehumidifying round box (703). There are multiple connecting holes (704). The number of connecting holes (704) is the same as the number of wire holes (602) and their positions correspond one-to-one. A rubber tube head (705) is embedded inside several of the connecting holes (704), and a sealing plug (706) is embedded inside the remaining connecting holes (704). The air inlet box (702) is equipped with an electric heating wire (707), and the support frame (701) is equipped with an air pump (708) on the top inner side. The air pump (708) is connected to the bottom of the air inlet box (702). The dehumidification round box (703) is equipped with an exhaust box (709) on the top. The dehumidification round box (703) has multiple flow equalization holes (710) evenly opened on the top and bottom. The exhaust box (709) is connected to an exhaust pipe (711) on the top. Both ends of the exhaust box (709) are connected to drying hoses (713) via air control valves (712). The top of the drying hoses (713) is connected to a drying iron ring (714), which is the same size as the docking magnetic ring (633).

10. The equipment for preparing a copper core insulated cable based on nano-graphene according to claim 9, characterized in that, Four support grooved wheels (715) are installed on the inner side of the U-shaped frame (629). The support grooved wheels (715) are evenly distributed on the outer circumference of the outer tube (630). The outer tube (630) is supported by the support grooved wheels (715). The outer circumference of the outer tube (630) is embedded in the support grooved wheels (715). An arc-shaped rack (716) is installed on one side of the outer tube (630). A swing motor (717) is installed on one side of the U-shaped frame (629). The output end of the swing motor (717) is connected to a swing gear (718). The swing gear (718) meshes with the arc-shaped rack (716).

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