Low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables and production equipment

Abstract

This utility model relates to the technical field of cables and production equipment, specifically to low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables and production equipment, including Category 5 copper wire conductors, a ceramicized silicone rubber composite tape, insulating rubber, filling rubber, an insulating tape, and a black EVM rubber sheath. In this low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cable, the Category 5 copper wire conductors inside the cable are made of suitable tin-plated oxygen-free soft copper material, reducing the diameter of a single copper wire and increasing the number of copper wires, thus providing effective torque release and resistance to breakage. The ceramicized silicone rubber composite tape enhances the isolation between the Category 5 copper wire conductors and the insulating rubber, and provides excellent fire resistance. The insulating rubber is made of suitable ethylene propylene rubber material, possessing high electrical performance, torsion resistance, high elasticity, and water resistance. The black EVM rubber sheath is made of suitable high flame-retardant halogen-free low-smoke rubber material, providing excellent waterproof performance.

Description

Technical Field

[0001] This utility model relates to the technical field of cables and production equipment, specifically to low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables and production equipment. Background Technology

[0002] Cables are typically rope-like structures made of several or groups of conductors (at least two conductors per group) twisted together. Each group of conductors is insulated from the others and is often twisted around a central conductor, with the entire structure covered by a highly insulating outer layer. They are often installed in the air, underground, or underwater for telecommunications or electrical transmission. In 1832, someone buried a telegraph line underground, with six conductors insulated from each other with rubber and placed together in a glass tube; this was the world's first underground cable.

[0003] Conventional cables need to have improved fire resistance and low smoke performance to be able to cope with more extreme environments.

[0004] In cable production, winding equipment is required. Existing winding equipment has poor winding uniformity. During the cable winding process, it cannot help the cable to be wound more evenly on the outer surface of the drum or winding roller, which makes it easy for the cable to get tangled and twisted during winding, making it inconvenient to use the cable. To address this, we have proposed low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables and their production equipment. Utility Model Content

[0005] The purpose of this invention is to provide low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables and production equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cable includes five types of copper wire conductors, a ceramicized silicone rubber composite tape, insulating rubber, filling rubber, an insulating tape, and a black EVM rubber sheath. The ceramicized silicone rubber composite tape is fixedly installed on the outside of the five types of copper wire conductors. The insulating rubber is fixedly installed on the outside of the ceramicized silicone rubber composite tape. The filling rubber is fixedly installed on the outside of the insulating rubber. The insulating tape is fixedly installed on the outside of the filling rubber. The black EVM rubber sheath is fixedly installed on the outside of the insulating tape. There are four types of five copper wire conductors.

[0008] Production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables includes a support pile, a strip hole, a second servo motor, a lead screw, a sliding block, a connecting block, a base, and a protective plate. The top of the support pile has a strip hole, and the second servo motor is fixedly installed inside the strip hole. One end of the second servo motor is fixedly connected to a lead screw, and the end of the lead screw away from the second servo motor is rotatably connected to the inner wall of the strip hole. A sliding block is threaded onto the lead screw, and a connecting block is fixedly installed at the bottom of the sliding block. A base is fixedly installed at the bottom of the connecting block, and a protective plate is fixedly installed at the bottom of the base.

[0009] Preferably, push rods are fixedly provided at both ends of the bottom of the support pile, and electric push rods are movably provided at the bottom of the push rods.

[0010] The above solution, by setting up an electric push rod, allows the height of the push rod to be adjusted, thereby adjusting the height of the support pile.

[0011] Preferably, a fixed plate is fixedly provided at the bottom of the electric push rod, and a take-up roller is rotatably connected inside the fixed plate.

[0012] The above solution involves setting up a take-up roller, and the rotation of the take-up roller allows the cable to be wound onto the take-up roller.

[0013] Preferably, a first servo motor is fixedly installed on one side of the fixed disk, and the output end of the first servo motor is fixedly connected to the take-up roller.

[0014] The above scheme involves setting up a first servo motor, which drives the take-up roller to rotate.

[0015] Preferably, a vertical plate is fixedly provided at the bottom of the fixed plate.

[0016] The above solution uses a vertical plate to support the fixed plate.

[0017] Preferably, a support base is fixedly provided at the bottom of the upright plate.

[0018] By implementing the above solution and setting up a support base, the overall stability of the device is further improved.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cable features Category 5 copper wire conductors made of suitable tin-plated oxygen-free soft copper material. This reduces the diameter of individual copper wires and increases the number of wires, resulting in effective torque release and reduced breakage. The cable is wrapped with ceramicized silicone rubber composite tape, enhancing the isolation between the Category 5 copper wire conductors and the insulating rubber, and providing excellent fire resistance. The insulating rubber is made of suitable ethylene propylene rubber material, exhibiting high electrical performance, torsion resistance, high elasticity, and water resistance. The black EVM rubber sheath is made of suitable high flame-retardant halogen-free low-smoke rubber material, providing excellent waterproof performance.

[0021] This production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables uses a combination of a fixed disc, a winding roller, and a first servo motor to wind the produced cable onto the winding roller. A combination of a second servo motor, a lead screw, a connecting block, and a base allows the protective plate to move left and right on one side of the winding roller. A combination of an electric push rod, a push rod, and a support pile allows the distance between the protective plate and the winding roller to be adjusted. As the cable winds, the protective plate pushes the cable to adhere to it, ensuring the cable is evenly wound onto the winding roller and improving the space utilization of the winding roller. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the cable structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall production equipment for the cable of this utility model;

[0024] Figure 3 This is a partial structural diagram of the support pile of this utility model;

[0025] Figure 4 This is a schematic diagram of the protective plate connection structure of this utility model.

[0026] In the diagram: 1. Type V copper wire conductor; 2. Wrapped ceramicized silicone rubber composite tape; 3. Insulating rubber; 4. Filler rubber; 5. Isolation tape; 6. Black EVM rubber sheath; 7. Fixing disc; 8. Take-up roller; 9. First servo motor; 10. Electric push rod; 11. Push rod; 12. Support pile; 13. Strip hole; 14. Second servo motor; 15. Lead screw; 16. Sliding block; 17. Connecting block; 18. Base; 19. Protective plate; 20. Vertical plate; 21. Support seat. Detailed Implementation

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

[0028] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0029] The low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cable includes a Category 5 copper wire conductor 1, a ceramicized silicone rubber composite tape 2, an insulating rubber 3, a filling rubber 4, an insulating tape 5, and a black EVM rubber sheath 6. The Category 5 copper wire conductor 1 is externally fixed with the ceramicized silicone rubber composite tape 2, the ceramicized silicone rubber composite tape 2 is externally fixed with the insulating rubber 3, the insulating rubber 3 is externally fixed with the filling rubber 4, the filling rubber 4 is externally fixed with the insulating tape 5, and the insulating tape 5 is externally fixed with the black EVM rubber sheath 6. There are four Category 5 copper wire conductors 1.

[0030] The fifth type of copper wire conductor 1 uses tin-plated oxygen-free soft copper conductors with an elongation greater than 30%, reducing the diameter of a single copper wire and increasing the number of copper wires. The conductor bundle twisting pitch ratio is 15 times, the bundle direction and the re-twisting direction are the same, the twisting pitch ratio is 13~17 times, and the twisting direction is left-handed. Such a conductor can effectively release torque during rotation and is not easy to break. The ceramicized silicone rubber composite tape 2 has a thickness of 0.20mm and a width of 25~40mm. The overlap rate of the wrapping is 30%~35%, which enhances the isolation between the conductor and the insulation. The insulation is not easy to sink into the conductor. It has excellent fire resistance. Under an environment with a flame temperature of 750℃, 90 minutes of fire exposure and 15 minutes of cooling, the sample can pass the rated voltage of the cable. The insulating rubber 3 uses high electrical performance, torsion resistance, and high elasticity ethylene propylene rubber material. The thinnest point thickness is 1.98mm, and it has good water resistance. The thinnest point thickness of the outer sheath is 2.64mm. The black EVM rubber sleeve 6 is made of highly flame-retardant, halogen-free, and low-smoke rubber material with excellent waterproof performance; in the smoke emission test, the light transmittance (It / I0) is 86%, which is relatively high.

[0031] Production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables includes a support pile 12, a strip hole 13, a second servo motor 14, a lead screw 15, a sliding block 16, a connecting block 17, a base 18, and a protective plate 19. The top of the support pile 12 has a strip hole 13. The second servo motor 14 is fixedly installed inside the strip hole 13. One end of the second servo motor 14 is fixedly connected to the lead screw 15. The end of the lead screw 15 away from the second servo motor 14 is rotatably connected to the inner wall of the strip hole 13. The sliding block 16 is threadedly connected to the lead screw 15. The bottom of the sliding block 16 is fixedly installed with the connecting block 17. The bottom of the connecting block 17 is fixedly installed with the base 18. The bottom of the base 18 is fixedly installed with the protective plate 19.

[0032] In this embodiment, preferably, push rods 11 are fixedly installed at both ends of the bottom of the support pile 12, electric push rods 10 are movably installed at the bottom of the push rods 11, a fixed disk 7 is fixedly installed at the bottom of the electric push rods 10, a take-up roller 8 is rotatably connected inside the fixed disk 7, a first servo motor 9 is fixedly installed on one side of the fixed disk 7, the output end of the first servo motor 9 is fixedly connected to the take-up roller 8, a vertical plate 20 is fixedly installed at the bottom of the fixed disk 7, and a support base 21 is fixedly installed at the bottom of the vertical plate 20.

[0033] Through the above scheme, by setting the electric push rod 10, the height of the push rod 11 can be adjusted, thereby adjusting the height of the support pile 12. By setting the take-up roller 8, the cable can be wound onto the take-up roller 8 by rotating the take-up roller 8. By setting the first servo motor 9, the take-up roller 8 is rotated by the operation of the first servo motor 9. By setting the upright plate 20, the fixed plate 7 can be supported. By setting the support base 21, the overall stability of the device is further improved.

[0034] In this embodiment, the low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cable and its production equipment utilize a combination of the fixed disc 7, the winding roller 8, and the first servo motor 9 to wind the produced cable onto the winding roller 8. A combination of the second servo motor 14, the lead screw 15, the connecting block 17, and the base 18 allows the protective plate 19 to move left and right on one side of the winding roller 8. A combination of the electric push rod 10, the push rod 11, and the support pile 12 allows the distance between the protective plate 19 and the winding roller 8 to be adjusted. As the cable winds, the protective plate 19 pushes the cable to adhere to it, thus ensuring the cable is evenly wound. The winding onto the take-up roller 8 improves the space utilization of the take-up roller 8. The Category 5 copper wire conductor 1 inside the cable uses a suitable tin-plated oxygen-free soft copper material, which reduces the diameter of a single copper wire and increases the number of copper wires, making it have the characteristics of effective torque release and not easy to break. The ceramicized silicone rubber composite tape 2 is wrapped around it, which enhances the isolation between the Category 5 copper wire conductor 1 and the insulating rubber 3 and has excellent fire resistance. The insulating rubber 3 uses a suitable ethylene propylene rubber material, which has high electrical performance, torsion resistance, high elasticity and water resistance. The black EVM rubber sheath 6 uses a suitable high flame retardant halogen-free low smoke rubber material, which has excellent waterproof performance.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Low smoke zero halogen fire resistant rubber insulated rubber jacketed cable comprising of five category copper wire conductor (1), wrapped ceramicized silicone rubber composite tape (2), insulating rubber (3), filled rubber (4), separator tape (5) and black EVM rubber sheath (6) characterized in that: The five types of copper wire conductors (1) are fixedly provided with a ceramicized silicone rubber composite tape (2) wrapped around the outside, an insulating rubber (3) is fixedly provided on the outside of the ceramicized silicone rubber composite tape (2), a filling rubber (4) is fixedly provided on the outside of the insulating rubber (3), an isolation tape (5) is fixedly provided on the outside of the filling rubber (4), and a black EVM rubber sheath (6) is fixedly provided on the outside of the isolation tape (5). The number of the five types of copper wire conductors (1) is four.

2. A production device of low-smoke halogen-free fireproof rubber insulated rubber sheath cable, comprising a support pile (12), a strip-shaped hole (13), a second servo motor (14), a lead screw (15), a sliding block (16), a connecting block (17), a base (18) and a guard plate (19), characterized in that: The top of the support pile (12) is provided with a strip hole (13). A second servo motor (14) is fixedly installed inside the strip hole (13). A lead screw (15) is fixedly connected to one end of the second servo motor (14). The end of the lead screw (15) away from the second servo motor (14) is rotatably connected to the inner wall of the strip hole (13). A sliding block (16) is threadedly connected to the lead screw (15). A connecting block (17) is fixedly installed at the bottom of the sliding block (16). A base (18) is fixedly installed at the bottom of the connecting block (17). A protective plate (19) is fixedly installed at the bottom of the base (18).

3. The production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables according to claim 2, characterized in that: The bottom ends of the support pile (12) are fixedly provided with push rods (11), and the bottom of the push rods (11) is movably provided with electric push rods (10).

4. The production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables according to claim 3, characterized in that: The bottom of the electric push rod (10) is fixedly provided with a fixed plate (7), and a take-up roller (8) is rotatably connected inside the fixed plate (7).

5. The production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables according to claim 4, characterized in that: A first servo motor (9) is fixedly installed on one side of the fixed disk (7), and the output end of the first servo motor (9) is fixedly connected to the winding roller (8).

6. The production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables according to claim 5, characterized in that: The bottom of the fixed plate (7) is fixedly provided with a vertical plate (20).

7. The production equipment for low-smoke halogen-free fire-resistant rubber-insulated rubber-sheathed cables according to claim 6, characterized in that: A support base (21) is fixedly provided at the bottom of the upright plate (20).

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