CN112133480A - Flexible mineral insulation fireproof cable - Google Patents
Flexible mineral insulation fireproof cable Download PDFInfo
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- CN112133480A CN112133480A CN202011019667.8A CN202011019667A CN112133480A CN 112133480 A CN112133480 A CN 112133480A CN 202011019667 A CN202011019667 A CN 202011019667A CN 112133480 A CN112133480 A CN 112133480A
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- Prior art keywords
- feeding
- pipe
- roller
- loosening
- cable core
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 31
- 239000011707 mineral Substances 0.000 title claims abstract description 30
- 238000009413 insulation Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000002131 composite material Substances 0.000 claims abstract description 42
- 239000003365 glass fiber Substances 0.000 claims abstract description 34
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 230000004888 barrier function Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 54
- 239000010410 layer Substances 0.000 claims description 49
- 238000003825 pressing Methods 0.000 claims description 34
- 238000001914 filtration Methods 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 239000005662 Paraffin oil Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/221—Sheathing; Armouring; Screening; Applying other protective layers filling-up interstices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/205—Metal tubes, e.g. lead sheaths composed of aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/228—Metal braid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a flexible mineral insulation fireproof cable which comprises a cable core and an aluminum sheath oxygen isolation layer wrapping the cable core, wherein a glass fiber layer is filled between the cable core and the aluminum sheath oxygen isolation layer; when the cable is prepared, a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen-insulating layer is prepared by the mineral oxygen-insulating layer coating device. When the mineral oxygen barrier coating device works, a plurality of cable cores enter the end connecting pipe from one end of the end connecting pipe, then penetrate out along the composite feeding pipe and the feeding conical pipe, and the end connecting pipe and the composite feeding pipe are driven by a motor to rotate, so that glass fiber materials in the feeding bin are discharged from the feeding conical pipe and then uniformly coated on the surfaces of the cable cores; the fourth driving gear is driven by the motor to rotate, so that the inner rotating ring is driven to rotate, the rotating roller is driven to rotate around the cable core, the aluminum layer unreeled by the rotating roller is uniformly wrapped on the surfaces of the cable core and the glass fiber, and a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen isolation layer is formed.
Description
Technical Field
The invention belongs to the technical field of power cables, and particularly relates to a flexible mineral insulation fireproof cable.
Background
The electricity safety is one of the important safety problems in modern society, except that the electricity leakage damage is brought, the damage such as fire caused by high temperature generated in power transmission is caused, and the fire accident is also the main type generated by power application, so the performance of the cable needs to be improved;
the flexible fireproof cable is called an inorganic mineral insulated cable, is flexible and convenient to lay, has good fireproof and flame-retardant performances, is a cable which is frequently used in a high-temperature and high-pressure environment, and is formed by coating a layer of inorganic flexible fireproof material such as glass fiber on the outer wall of a plurality of bundles of cable cores.
Disclosure of Invention
The invention aims to provide a flexible mineral insulation fireproof cable.
The technical problems to be solved by the invention are as follows:
the main structure of the flexible fireproof cable is that a layer of inorganic soft fireproof material such as glass fiber is coated on the outer walls of a plurality of bundles of cable cores, but in the prior art, the production efficiency of the structure is low, a lot of leakage flying dust can be generated in the production process, and the air environment of a production workshop is influenced.
The purpose of the invention can be realized by the following technical scheme:
a flexible mineral insulation fireproof cable comprises a cable core and an aluminum sheath oxygen isolation layer wrapping the cable core, wherein a glass fiber layer is filled between the cable core and the aluminum sheath oxygen isolation layer;
the outer sheath is a halogen-free low-smoke polyolefin outer sheath;
the metal protective layer is formed by weaving flexible metal filament yarns;
the fireproof isolation layer is made of fireproof flame-retardant polyolefin materials.
When the cable is prepared, a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen-insulating layer is prepared by the mineral oxygen-insulating layer coating device.
As a further scheme of the invention, the mineral oxygen barrier coating device comprises a loose material structure, a feeding structure, a coating structure and a regular structure;
the feeding structure comprises a feeding pipe, one end of the feeding pipe is communicated with the bottom of the loosening machine box, the other end of the feeding pipe is communicated with one end of an air inlet pipe, part of the second roller body is positioned in the feeding pipe and the air inlet pipe, and a second fixing flange on one end, far away from the second transmission gear, of the second roller body is fixedly arranged on one end, far away from the feeding pipe, of the air inlet pipe;
the bottom of the side wall of the feeding pipe is communicated with the feeding bin through a transition connecting piece;
the cladding structure comprises a feeding bin, the feeding bin is sleeved on a composite feeding pipe, the composite feeding pipe is rotatably connected with the feeding bin through a mechanical sealing structure, one end of the composite feeding pipe is fixedly connected with an end connecting pipe, the end connecting pipe is communicated with the composite feeding pipe, two supporting bearings are sleeved on the end connecting pipe, inner rings of the supporting bearings are fixedly sleeved on the pipe wall of the end connecting pipe, outer rings of the supporting bearings are fixedly connected with the inner wall of an outer protective pipe, one end of the feeding bin is connected with one end of a feeding straight pipe, the other end of the feeding straight pipe is communicated with one end of a feeding conical pipe, the feeding conical pipe is of a funnel-shaped structure, the thicker end of the funnel-shaped structure is connected with the feeding straight pipe, the feeding straight pipe is sleeved on the composite feeding pipe, and the surface of the feeding straight pipe in the composite feeding pipe is, the other end of the feeding bin is fixedly connected with one end of an outer-wrapping protective pipe, the other end of the outer-wrapping protective pipe is fixedly arranged on the feeding bin, the bottom of the feeding bin is fixedly arranged on the feeding bin, and the feeding bin is fixedly arranged on the bottom frame;
the end part connecting pipe is provided with a plurality of strip-shaped holes, the side wall of the outer wrapping protective pipe is provided with a through hole, one end of the end part connecting pipe is fixedly sleeved with a second belt pulley, and the second belt pulley is in transmission connection with the shaft extension end of the motor through a belt;
the end connecting pipe and the composite feeding pipe are both of hollow cylinder structures;
the regular structure comprises an unreeling device, a limiting and stabilizing device and a press-fit structure, wherein the unreeling device is arranged at an outlet of the feeding conical pipe, the press-fit structure is arranged between the limiting and stabilizing device and the unreeling device, the pressing structure comprises a pressing disc, adjusting discs respectively arranged at two sides of the pressing disc and a driving rod structure arranged at one side of the adjusting discs and one side of the pressing disc, the adjusting disc is rotationally connected with the pressing disc, the pressing disc comprises a second annular disc, the second annular disc is of an annular structure, a second wire inlet hole is formed in the middle of the second annular disc, a plurality of mounting grooves are formed in an annular array on the annular inner wall of the second annular disc, two side walls of the mounting groove are provided with linear sliding grooves, a second annular disc is internally provided with a press roller, one end of a compression roller end rod is fixedly connected to the two ends of the compression roller, and the compression roller end rod is in sliding fit with the linear sliding groove;
the adjusting disc comprises a first annular disc, the first annular disc is of an annular structure, a first wire inlet hole is formed in the middle of the first annular disc, an arc-shaped through hole penetrating through the first annular disc is formed in the first annular disc, a linear sliding groove connected to the two ends of the pressing roller is in sliding fit with the arc-shaped through hole, and insections are formed in the outer ring of the adjusting disc;
the driving rod structure comprises a driving connecting rod and a third transmission gear fixedly connected with the two ends of the driving connecting rod, the third transmission gear is meshed with the adjusting disc, one end of the third transmission gear is fixedly connected with a shaft extension end of a motor, and the motor drives the driving connecting rod to rotate so as to drive the third transmission gear to rotate;
the unwinding device comprises an outer rotating ring, an inner rotating ring and a fourth driving gear, wherein the inner rotating ring is sleeved on the outer rotating ring, the inner rotating ring is rotatably connected with the outer rotating ring, at least one side of the outer wall of the inner rotating ring is provided with insections, the fourth driving gear is fixedly sleeved on the shaft extension end of the motor, the fourth driving gear is meshed with the insections arranged on the outer side wall of the inner rotating ring, and the inner wall of the inner rotating ring is rotatably provided with a rotating roller through a mounting structure.
As a further scheme of the invention, the loosening structure comprises a loosening machine box, the loosening machine box is fixedly arranged on an installation rack, the installation rack is fixedly arranged on an underframe, a loosening roller and a feeding roller are rotatably arranged in the loosening machine box, the loosening roller is arranged above the feeding roller, and a transmission through hole is formed in the underframe;
the material loosening roller comprises a first roller body, wherein first fixing flanges are sleeved at two ends of the first roller body in a rotating mode, the first fixing flanges are fixedly installed on the wall of the material loosening machine box, one end of each first fixing flange is fixedly sleeved with a first transmission gear, and a plurality of opening rollers are fixedly installed on the side wall of the first roller body.
As a further scheme of the invention, the feeding roller comprises a second roller body, second fixing flanges are rotatably sleeved on two ends of the second roller body, a second transmission gear and a first belt pulley are fixedly sleeved on one end of the second roller body, the second transmission gear is in transmission connection with a first transmission gear on the loosening roller through a chain, the first belt pulley is in transmission connection with a shaft extension of a motor through a belt, a first helical blade is fixedly installed on the outer wall of the part, located in the loosening case, of the second roller body, and the second fixing flange, located at one end of the second roller body, close to the second transmission gear and the first belt pulley, is fixedly installed on the loosening case.
As a further scheme of the invention, the top of the side wall of the air inlet pipe is connected with a filtering air hopper, the filtering air hopper is of a funnel-shaped structure with a thick upper part and a thin lower part, the thin end of the filtering air hopper is communicated with the air inlet pipe, one end of the filtering air hopper far away from the air inlet pipe is connected with an air compressor through a high-pressure air transmission pipeline, and a dust removal cloth bag is arranged inside the filtering air hopper.
As a further scheme of the invention, the limiting and stabilizing device comprises a rectangular box, two opposite side surfaces of the rectangular box are respectively provided with a feeding hole and a discharging hole, the discharging hole is connected with a discharging buffer rod, the other two opposite side surfaces of the rectangular box are fixedly provided with extrusion block fixing rods, and one ends of the extrusion block fixing rods, which are close to the rectangular box, are connected with extrusion blocks through springs.
The working method of the mineral oxygen barrier coating device comprises the following steps:
adding a glass fiber material into a material loosening machine box, driving a material loosening roller and a feeding roller to rotate through a motor, stirring and dispersing the material in the material loosening machine box through the rotation of the feeding roller, transmitting the material into a feeding bin through a feeding pipe and a transition connecting piece through the rotation of the feeding roller, starting an air compressor connected with a filtering air hopper in the transmission process, and blowing compressed air into the feeding pipe through the air compressor;
a plurality of cable cores enter the end part connecting pipe from one end of the end part connecting pipe and then penetrate out along the composite feeding pipe and the feeding conical pipe, in the process, atomized paraffin oil is input into the end part connecting pipe through the through hole formed in the side wall of the outer protective pipe and the strip-shaped hole formed in the end part connecting pipe, the paraffin oil is attached to the surface of the cable core after being solidified, the lubricating effect is achieved, meanwhile, the end part connecting pipe and the composite feeding pipe are driven by a motor to rotate, and glass fiber materials in the feeding bin are uniformly wrapped on the surface of the cable core after being discharged from the feeding conical pipe;
the fourth driving gear is driven by the motor to rotate, so that the inner rotating ring is driven to rotate, the rotating roller is driven to rotate around the cable core, the aluminum layer unreeled by the rotating roller is uniformly wrapped on the surfaces of the cable core and the glass fiber, and a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen isolation layer is formed.
The invention has the beneficial effects that:
the flexible mineral insulation fireproof cable comprises a cable core and an aluminum sheath oxygen isolation layer wrapping the cable core, wherein a glass fiber layer is filled between the cable core and the aluminum sheath oxygen isolation layer; and when the cable is prepared, a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen-insulating layer is prepared by a mineral oxygen-insulating layer coating device; when the mineral oxygen barrier coating device works, glass fiber materials are added into a material loosening machine box, a motor drives a material loosening roller and a feeding roller to rotate, the feeding roller rotates to stir and disperse the materials in the material loosening machine box, the feeding roller rotates to transmit the materials to a feeding bin through a feeding pipe and a transition connecting piece, an air compressor connected with a filtering air hopper is started in the transmission process, and compressed air is blown into the feeding pipe through the air compressor; a plurality of cable cores enter the end part connecting pipe from one end of the end part connecting pipe and then penetrate out along the composite feeding pipe and the feeding conical pipe, in the process, atomized paraffin oil is input into the end part connecting pipe through the through hole formed in the side wall of the outer protective pipe and the strip-shaped hole formed in the end part connecting pipe, the paraffin oil is attached to the surface of the cable core after being solidified, the lubricating effect is achieved, meanwhile, the end part connecting pipe and the composite feeding pipe are driven by a motor to rotate, and glass fiber materials in the feeding bin are uniformly wrapped on the surface of the cable core after being discharged from the feeding conical pipe; the fourth driving gear is driven by the motor to rotate, so that the inner rotating ring is driven to rotate, the rotating roller is driven to rotate around the cable core, the aluminum layer unreeled by the rotating roller is uniformly wrapped on the surfaces of the cable core and the glass fiber, and a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen isolation layer is formed.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural view of a mineral oxygen barrier coating device;
FIG. 2 is a schematic view of a connection structure of a material loosening structure and a material feeding structure;
FIG. 3 is a schematic structural view of a loosening roller;
FIG. 4 is a schematic view of the feed roller;
FIG. 5 is a schematic view of a feed structure;
FIG. 6 is a schematic view of a partial structure of a feeding structure;
FIG. 7 is a schematic structural view of a position-limiting stabilizing device;
FIG. 8 is a schematic structural view of a press-fit structure;
FIG. 9 is a schematic view of the structure of the adjustment disk;
FIG. 10 is a schematic structural view of a pressing plate;
fig. 11 is a schematic structural view of the unwinding device;
fig. 12 is a schematic structural view of the flexible mineral insulated fireproof cable according to the present invention.
In the figure: 1. installing a frame; 2. loosening the material machine box; 3. a material loosening roller; 4. a feed roller; 5. a feed pipe; 7. a pressing structure; 8. a limiting and stabilizing device; 9. an unwinding device; 11. a chassis; 12. a drive through hole; 31. a first fixed flange; 32. a first drive gear; 33. an opening roller; 34. a first roller body; 41. a second roller body; 42. a second fixed flange; 43. a first helical blade; 44. a second transmission gear; 45. a first pulley; 51. an air inlet pipe; 52. filtering the air hopper; 53. a transition piece; 61. a feeding bin; 62. feeding a straight pipe; 63. feeding a conical pipe; 64. wrapping a protective pipe outside; 65. a support bearing; 66. an end connecting pipe; 67. a second pulley; 68. a composite feeding pipe; 69. a second helical blade; 71. an adjusting disk; 72. pressing the disc; 73. a drive rod structure; 731. a drive link; 732. a third transmission gear; 711. a first annular disc; 712. an arc-shaped through hole; 713. a first wire inlet hole; 721. a second annular disc; 722. mounting grooves; 723. a compression roller; 724. a press roll end rod; 725. a linear sliding groove; 726. a second wire inlet hole; 81. a rectangular box; 82. a feed port; 83. a discharge hole; 84. a discharge buffer rod; 85. extruding the block; 86. a pressing block fixing rod; 91. an outer rotating ring; 92. an inner rotating ring; 93. a mounting structure; 94. a rotating roller; 95. and a fourth drive gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A flexible mineral insulation fireproof cable comprises a cable core and an aluminum sheath oxygen isolation layer wrapping the cable core, wherein a glass fiber layer is filled between the cable core and the aluminum sheath oxygen isolation layer, a fireproof isolation layer is wrapped outside the aluminum sheath oxygen isolation layer, a metal protection layer is wrapped outside the fireproof isolation layer, and an outer sheath is wrapped outside the metal protection layer;
the outer sheath is a halogen-free low-smoke polyolefin outer sheath;
the metal protective layer is formed by weaving flexible metal filament yarns;
the fireproof isolation layer is made of fireproof flame-retardant polyolefin materials.
When the cable is prepared, a composite structure of a cable core, a glass fiber layer and an aluminum sheath oxygen-isolating layer is prepared by a mineral oxygen-isolating layer coating device;
as shown in fig. 1 to 11, the mineral oxygen barrier coating device comprises a loose material structure, a feeding structure, a coating structure and a regular structure;
the loosening structure comprises a loosening case 2, the loosening case 2 is fixedly arranged on an installation frame 1, the installation frame 1 is fixedly arranged on an underframe 11, a loosening roller 3 and a feeding roller 4 are rotatably arranged in the loosening case 2, the loosening roller 3 is arranged above the feeding roller 4, a transmission through hole 12 is formed in the underframe 11, and a belt or a chain for transmission penetrates through the underframe 11;
the loosening roller 3 comprises a first roller body 34, two ends of the first roller body 34 are rotatably sleeved with first fixing flanges 31, the first fixing flanges 31 are fixedly installed on the wall of the loosening case 2, one ends of the first fixing flanges 31 are fixedly sleeved with first transmission gears 32, and the side walls of the first roller body 34 are fixedly provided with a plurality of loosening rollers 33;
the feeding roller 4 comprises a second roller body 41, second fixing flanges 42 are rotatably sleeved on two ends of the second roller body 41, one end of the second roller body 41 is fixedly sleeved with a second transmission gear 44 and a first belt pulley 45, wherein the second transmission gear 44 is in transmission connection with a first transmission gear 32 on the loosening roller 3 through a chain, the first belt pulley 45 is in transmission connection with a shaft extension of a motor through a belt, a first helical blade 43 is fixedly installed on the outer wall of the part, located in the loosening case 2, of the second roller body 41, and the second fixing flanges 42, close to the second transmission gear 44 and one end of the first belt pulley 45, of the second roller body 41 are fixedly installed on the loosening case 2;
the feeding structure comprises a feeding pipe 5, one end of the feeding pipe 5 is communicated with the bottom of the loosening machine box 2, the other end of the feeding pipe 5 is communicated with one end of an air inlet pipe 51, the second roller body 41 is partially positioned in the feeding pipe 5 and the air inlet pipe 51, and a second fixing flange 42 at one end, far away from the second transmission gear 44, of the second roller body 41 is fixedly installed at one end, far away from the feeding pipe 5, of the air inlet pipe 51;
the bottom of the side wall of the feeding pipe 5 is communicated with the feeding bin 61 through a transition connecting piece 53, the top of the side wall of the air inlet pipe 51 is connected with a filtering air hopper 52, the filtering air hopper 52 is of a funnel-shaped structure with a thick upper part and a thin lower part, the thin end of the filtering air hopper 52 is communicated with the air inlet pipe 51, one end, far away from the air inlet pipe 51, of the filtering air hopper 52 is connected with an air compressor through a high-pressure air conveying pipeline, and a dust removing cloth bag is arranged inside the filtering air hopper 52 and used for filtering high-pressure air input by the air compressor;
when the device works, the loosening roller 3 rotates to stir and loosen materials in the loosening case 2, the materials in the loosening case 2 are transmitted to the transition connecting piece 53 through the transmission roller 4, and the glass fibers in the materials are entangled with each other, so that the connection part of the feeding pipe 5 and the transition connecting piece 53 is easily blocked, compressed air is input into the feeding pipe through the filtering air hopper 52, and the smooth transmission of the materials at the connection part of the feeding pipe 5 and the transition connecting piece 53 is kept;
the cladding structure comprises a feeding bin 61, the feeding bin 61 is sleeved on a composite feeding pipe 68, the composite feeding pipe 68 is rotatably connected with the feeding bin 61 through a mechanical sealing structure, one end of the composite feeding pipe 68 is fixedly connected with an end connecting pipe 66, the end connecting pipe 66 is communicated with the composite feeding pipe 68, two supporting bearings 65 are sleeved on the end connecting pipe 66, inner rings of the supporting bearings 65 are fixedly sleeved on the pipe wall of the end connecting pipe 66, outer rings of the supporting bearings 65 are fixedly connected with the inner wall of an outer-wrapping protective pipe 64, one end of the feeding bin 61 is connected with one end of a feeding straight pipe 62, the other end of the feeding straight pipe 62 is communicated with one end of a feeding conical pipe 63, the feeding conical pipe 63 is of a funnel-shaped structure, a thicker end of the funnel-shaped structure is connected with the feeding straight pipe 62, the feeding straight pipe 62 is sleeved on the composite feeding pipe 68, and second spiral blades 69 are fixedly mounted on the surface of the feeding straight, the other end of the feeding bin 61 is fixedly connected with one end of an outer-wrapping protective pipe 64, the other end of the outer-wrapping protective pipe 64 is fixedly arranged on the base 13, the bottom of the feeding bin 61 is fixedly arranged on the base 13, and the base 13 is fixedly arranged on the bottom frame 11;
a plurality of strip-shaped holes are formed in the end connecting pipe 66, a through hole is formed in the side wall of the outer wrapping protective pipe 64, a second belt pulley 67 is fixedly sleeved on one end of the end connecting pipe 66, and the second belt pulley 67 is in transmission connection with the shaft extension end of the motor through a belt;
the end connecting pipe 66 and the composite feeding pipe 68 are both of hollow cylinder structures;
the regulating structure comprises an unreeling device 9, a limiting and stabilizing device 8 and a pressing structure 7, wherein the unreeling device 9 is installed at an outlet of the feeding conical pipe 63, the pressing structure 7 is arranged between the limiting and stabilizing device 8 and the unreeling device 9, the pressing structure 7 comprises a pressing disc 72, adjusting discs 71 respectively installed at two sides of the pressing disc 72 and a driving rod structure 73 installed at one side of the adjusting discs 71 and the pressing disc 72, the adjusting discs 71 are rotatably connected with the pressing disc 72, the pressing disc 72 comprises a second annular disc 721, the second annular disc 721 is of an annular structure, a second wire inlet hole 726 is arranged in the middle of the second annular disc 721, a plurality of installation grooves 722 are arranged on the annular inner wall of the second annular disc 721 in an annular array manner, linear sliding grooves 725 are arranged on two side walls of the installation grooves 722, a press roller 723 is arranged in the second annular disc 721, and one end of a press roller end rod 724 is fixedly connected to two ends, the compression roller end rod 724 is in sliding fit with the linear sliding groove 725;
the adjusting disc 71 comprises a first annular disc 711, the first annular disc 711 is of an annular structure, a first wire inlet hole 713 is formed in the middle of the first annular disc 711, an arc-shaped through hole 712 penetrating through the first annular disc 711 is formed in the first annular disc 711, a linear sliding groove 725 connected to two ends of the pressing roller 723 is in sliding fit with the arc-shaped through hole 712, and insections are formed in the outer ring of the adjusting disc 71;
the driving rod structure 73 comprises a driving connecting rod 731 and a third transmission gear 732 fixedly connected with two ends of the driving connecting rod 731, the third transmission gear 732 is meshed with the adjusting disk 71, one end of the third transmission gear 732 is fixedly connected with a shaft extension end of a motor, and the motor drives the driving connecting rod 731 to rotate so as to drive the third transmission gear 732 to rotate;
the formed composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen isolation layer can be extruded through the pressing structure 7, and the influence on subsequent processing of the cable caused by the bulge formed by the aggregation of the glass fibers at the local position is reduced;
the limiting and stabilizing device 8 comprises a rectangular box 81, two opposite side surfaces of the rectangular box 81 are respectively provided with a feeding hole 82 and a discharging hole 83, the discharging hole 83 is connected with a discharging buffer rod 84, the other two opposite side surfaces of the rectangular box 81 are fixedly provided with an extrusion block fixing rod 86, one end, close to the rectangular box 81, of the extrusion block fixing rod 86 is connected with an extrusion block 85 through a spring, a layer of ceramic coating is sprayed on the outer wall of the extrusion block 85, and the friction force between the extrusion block 85 and a cable is reduced;
the unreeling device 9 comprises an outer rotating ring 91, an inner rotating ring 92 and a fourth driving gear 95, wherein the inner rotating ring 92 is sleeved on the outer rotating ring 91, the inner rotating ring 92 is rotatably connected with the outer rotating ring 91, at least one side of the outer wall of the inner rotating ring 92 is provided with insections, the fourth driving gear 95 is fixedly sleeved on the shaft extension end of the motor, the fourth driving gear 95 is meshed with the insections arranged on the outer side wall of the inner rotating ring 92, and the inner wall of the inner rotating ring 92 is rotatably provided with a rotating roller 94 through a mounting structure 93;
the working method of the mineral oxygen barrier coating device comprises the following steps:
adding a glass fiber material into a loose material case 2, driving a loose material roller 3 and a feed roller 4 to rotate through a motor, stirring and dispersing the material in the loose material case 2 through the rotation of the feed roller 4, transmitting the material into a feed bin 61 through a feed pipe 5 and a transition connecting piece 53 through the rotation of the feed roller 4, starting an air compressor connected with a filtering air hopper 52 in the transmission process, blowing compressed air into the feed pipe 5 through the air compressor, and avoiding the blockage at the connection part of the feed pipe 5 and the transition connecting piece 53;
a plurality of cable cores enter the end part connecting pipe 66 from one end of the end part connecting pipe 66 and then penetrate out along the composite feeding pipe 68 and the feeding conical pipe 63, in the process, atomized paraffin oil is input into the end part connecting pipe 66 through the through hole arranged on the side wall of the outer covering protective pipe 64 and the strip-shaped hole arranged on the end part connecting pipe 66, the paraffin oil is attached to the surface of the cable core after being solidified, the lubrication effect is achieved, meanwhile, the end part connecting pipe 66 and the composite feeding pipe 68 are driven by a motor to rotate, and the glass fiber materials in the feeding bin 61 are uniformly wrapped on the surface of the cable core after being discharged from the feeding conical pipe 63;
the fourth driving gear 95 is driven by the motor to rotate, so that the inner rotating ring 92 is driven to rotate, the rotating roller 94 is driven to rotate around the cable core, and the aluminum layer unreeled by the rotating roller 94 is uniformly coated on the surfaces of the cable core and the glass fiber to form a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen barrier layer.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. The flexible mineral insulation fireproof cable is characterized by comprising a cable core and an aluminum sheath oxygen-isolating layer wrapping the cable core, wherein a glass fiber layer is filled between the cable core and the aluminum sheath oxygen-isolating layer;
the outer sheath is a halogen-free low-smoke polyolefin outer sheath;
the metal protective layer is formed by weaving flexible metal filament yarns;
the fireproof isolation layer is made of fireproof flame-retardant polyolefin material;
when the cable is prepared, a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen-insulating layer is prepared by the mineral oxygen-insulating layer coating device.
2. The flexible mineral insulated fireproof cable of claim 1, wherein the mineral oxygen barrier coating means comprises a loose material structure, a feeding structure, a coating structure and a structured structure;
the feeding structure comprises a feeding pipe (5), one end of the feeding pipe (5) is communicated with the bottom of the loosening machine box (2), and the other end of the feeding pipe (5) is communicated with one end of an air inlet pipe (51);
the bottom of the side wall of the feeding pipe (5) is communicated with the feeding bin (61) through a transition connecting piece (53);
the cladding structure comprises a feeding bin (61), the feeding bin (61) is sleeved on a composite feeding pipe (68), the composite feeding pipe (68) is rotatably connected with the feeding bin (61) through a mechanical sealing structure, one end of the composite feeding pipe (68) is fixedly connected with an end connecting pipe (66), the end connecting pipe (66) is communicated with the composite feeding pipe (68), two supporting bearings (65) are sleeved on the end connecting pipe (66), inner rings of the supporting bearings (65) are fixedly sleeved on the pipe wall of the end connecting pipe (66), outer rings of the supporting bearings (65) are fixedly connected with the inner wall of an outer wrapping protective pipe (64), one end of the feeding bin (61) is connected with one end of a feeding straight pipe (62), the other end of the feeding straight pipe (62) is communicated with one end of a feeding conical pipe (63), the feeding conical pipe (63) is of a funnel-shaped structure, and the thicker end of the funnel-shaped structure is connected with the feeding straight pipe (62), the feeding straight pipe (62) is sleeved on the composite feeding pipe (68), a second spiral blade (69) is fixedly mounted on the surface of the part, located in the composite feeding pipe (68), of the feeding straight pipe (62), the other end of the feeding bin (61) is fixedly connected with one end of the outer-coating protective pipe (64), the other end of the outer-coating protective pipe (64) is fixedly mounted on the feeding bin (13), the bottom of the feeding bin (61) is fixedly mounted on the feeding bin (13), and the feeding straight pipe (13) is fixedly mounted on the bottom frame (11);
the end part connecting pipe (66) is provided with a plurality of strip-shaped holes, the side wall of the outer-wrapping protective pipe (64) is provided with a through hole, one end of the end part connecting pipe (66) is fixedly sleeved with a second belt pulley (67), and the second belt pulley (67) is in transmission connection with the shaft extension end of the motor through a belt;
the end connecting pipe (66) and the composite feeding pipe (68) are both of hollow cylinder structures;
the regulating structure comprises an unreeling device (9), a limiting and stabilizing device (8) and a pressing structure (7), wherein the unreeling device (9) is installed at an outlet of the feeding conical pipe (63), the pressing structure (7) is arranged between the limiting and stabilizing device (8) and the unreeling device (9), the pressing structure (7) comprises a pressing disc (72), adjusting discs (71) respectively installed at two sides of the pressing disc (72) and a driving rod structure (73) installed at one sides of the adjusting discs (71) and the pressing disc (72), the adjusting discs (71) are rotatably connected with the pressing disc (72), the pressing disc (72) comprises a second annular disc (721), the second annular disc (721) is of an annular structure, a second wire inlet hole (726) is formed in the middle of the second annular disc (721), a plurality of installation grooves (722) are arranged on an annular inner wall of the second annular disc (721) in an annular array manner, linear sliding grooves (725) are formed in two side walls of the mounting groove (722), a pressing roller (723) is arranged in the second annular disc (721), one end of a pressing roller end rod (724) is fixedly connected to two ends of the pressing roller (723), and the pressing roller end rod (724) is in sliding fit with the linear sliding grooves (725);
the adjusting disc (71) comprises a first annular disc (711), the first annular disc (711) is of an annular structure, a first wire inlet hole (713) is formed in the middle of the first annular disc (711), an arc-shaped through hole (712) penetrating through the first annular disc (711) is formed in the first annular disc (711), a linear sliding groove (725) connected with two ends of the pressing roller (723) is in sliding fit with the arc-shaped through hole (712), and insections are formed in the outer ring of the adjusting disc (71);
the driving rod structure (73) comprises a driving connecting rod (731) and a third transmission gear (732) fixedly connected with the two ends of the driving connecting rod (731), the third transmission gear (732) is meshed with the adjusting disc (71), one end of the third transmission gear (732) is fixedly connected with a shaft extension end of a motor, the motor drives the driving connecting rod (731) to rotate, and then the third transmission gear (732) is driven to rotate;
unwinding device (9) include outer rotating ring (91), interior rotating ring (92) and fourth drive gear (95), interior rotating ring (92) cup joints on outer rotating ring (91), and interior rotating ring (92) rotates with outer rotating ring (91) to be connected, is provided with the insection on at least one side of the outer wall of interior rotating ring (92), fourth drive gear (95) are fixed to be cup jointed on the axle extension of motor is served, and insection meshing is established with interior rotating ring (92) lateral wall in fourth drive gear (95), install live-rollers (94) through mounting structure (93) rotation on the inner wall of interior rotating ring (92).
3. The flexible mineral insulation fireproof cable according to claim 2, wherein the loosening structure comprises a loosening case (2), the loosening case (2) is fixedly mounted on a mounting frame (1), the mounting frame (1) is fixedly mounted on an underframe (11), a loosening roller (3) and a feeding roller (4) are rotatably mounted in the loosening case (2), the loosening roller (3) is mounted above the feeding roller (4), and a transmission through hole (12) is formed in the underframe (11);
the loosening roller (3) comprises a first roller body (34), a first fixing flange (31) is sleeved at the two ends of the first roller body (34) in a rotating mode, the first fixing flange (31) is fixedly installed on the machine case wall of the loosening machine case (2), a first transmission gear (32) is fixedly sleeved on one end of the first fixing flange (31), and a plurality of loosening rollers (33) are fixedly installed on the side wall of the first roller body (34).
4. A flexible mineral insulated fireproof cable according to claim 3, the feeding roller (4) comprises a second roller body (41), a second fixed flange (42) is rotatably sleeved on two ends of the second roller body (41), a second transmission gear (44) and a first belt pulley (45) are fixedly sleeved on one end of the second roller body (41), wherein the second transmission gear (44) is in transmission connection with the first transmission gear (32) on the material loosening roller (3) through a chain, the first belt pulley (45) is in transmission connection with the shaft extension of the motor through a belt, a first helical blade (43) is fixedly installed on the outer wall of the part, located in the material loosening case (2), of the second roller body (41), and a second fixing flange (42) at one end, close to a second transmission gear (44) and a first belt pulley (45), of the second roller body (41) is fixedly installed on the material loosening case (2);
the part of the second roller body (41) is arranged in the feeding pipe (5) and the air inlet pipe (51), and a second fixing flange (42) on one end, far away from the second transmission gear (44), of the second roller body (41) is fixedly installed on one end, far away from the feeding pipe (5), of the air inlet pipe (51).
5. The flexible mineral insulation fireproof cable according to claim 2, wherein a filtering air funnel (52) is connected to the top of the side wall of the air inlet pipe (51), the filtering air funnel (52) is of a funnel-shaped structure with a thick upper part and a thin lower part, the thin end of the filtering air funnel (52) is communicated with the air inlet pipe (51), one end of the filtering air funnel (52) far away from the air inlet pipe (51) is connected with an air compressor through a high-pressure air transmission pipeline, and a dust removal cloth bag is arranged inside the filtering air funnel (52).
6. The flexible mineral insulated fireproof cable according to claim 2, wherein the limiting and stabilizing device (8) comprises a rectangular box (81), two opposite sides of the rectangular box (81) are respectively provided with a feeding hole (82) and a discharging hole (83), the discharging hole (83) is connected with a discharging buffer rod (84), the other two opposite sides of the rectangular box (81) are fixedly provided with an extrusion block fixing rod (86), and one end of the extrusion block fixing rod (86) close to the rectangular box (81) is connected with an extrusion block (85) through a spring.
7. The flexible mineral insulated fireproof cable of claim 2, wherein the operation method of the mineral oxygen barrier coating device is as follows:
adding a glass fiber material into a material loosening case (2), driving a material loosening roller (3) and a feeding roller (4) to rotate through a motor, stirring and dispersing the material in the material loosening case (2) through the rotation of the feeding roller (4), transmitting the material into a feeding bin (61) through a feeding pipe (5) and a transition connecting piece (53) through the rotation of the feeding roller (4), starting an air compressor connected with a filtering air hopper (52) in the transmission process, and blowing compressed air into the feeding pipe (5) through the air compressor;
a plurality of cable cores enter the end connecting pipe (66) from one end of the end connecting pipe (66), and then penetrate out along the composite feeding pipe (68) and the feeding conical pipe (63), in the process, atomized paraffin oil is input into the end connecting pipe (66) through a through hole arranged on the side wall of the outer protective pipe (64) and a strip-shaped hole arranged on the end connecting pipe (66), so that the paraffin oil is adhered to the surface of the cable core after being solidified, and the lubricating effect is achieved, meanwhile, the end connecting pipe (66) and the composite feeding pipe (68) are driven by a motor to rotate, so that the glass fiber materials in the feeding bin (61) are uniformly wrapped on the surface of the cable core after being discharged from the feeding conical pipe (63);
the fourth driving gear (95) is driven to rotate by the motor, the inner rotating ring (92) is driven to rotate, the rotating roller (94) is driven to rotate around the cable core, and the aluminum layer unreeled by the rotating roller (94) is uniformly wrapped on the surfaces of the cable core and the glass fiber to form a composite structure of the cable core, the glass fiber layer and the aluminum sheath oxygen isolation layer.
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| CN202011019667.8A CN112133480B (en) | 2020-09-24 | 2020-09-24 | Flexible mineral insulation fireproof cable |
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| CN202011019667.8A CN112133480B (en) | 2020-09-24 | 2020-09-24 | Flexible mineral insulation fireproof cable |
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| CN112133480B CN112133480B (en) | 2022-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117059335A (en) * | 2023-08-11 | 2023-11-14 | 沈兴线缆集团有限公司 | Powder coating device for fireproof cable production |
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| JP2013188786A (en) * | 2012-03-15 | 2013-09-26 | Aisin Aw Co Ltd | Feeder for square wire material |
| CN104934153A (en) * | 2015-06-01 | 2015-09-23 | 安庆钰龙橡塑机械制造有限公司 | Screw conveyor for silicone rubber extrusion production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117059335B (en) * | 2023-08-11 | 2024-02-27 | 沈兴线缆集团有限公司 | Powder coating device for fireproof cable production |
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| CN112133480B (en) | 2022-03-15 |
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