CN110010299A - A kind of data center's Special signal transmission cable and its manufacturing method - Google Patents
A kind of data center's Special signal transmission cable and its manufacturing method Download PDFInfo
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- CN110010299A CN110010299A CN201910393973.9A CN201910393973A CN110010299A CN 110010299 A CN110010299 A CN 110010299A CN 201910393973 A CN201910393973 A CN 201910393973A CN 110010299 A CN110010299 A CN 110010299A
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 229920000728 polyester Polymers 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 27
- 239000011295 pitch Substances 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000005491 wire drawing Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- -1 halogen polyene Hydrocarbon Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/005—Quad constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1008—Features relating to screening tape per se
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1033—Screens specially adapted for reducing interference from external sources composed of a wire-braided conductor
-
- 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
-
- 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
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
-
- 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
- H01B13/02—Stranding-up
-
- 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
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- 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
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- 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
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
-
- 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
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2606—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by braiding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- 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
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses a kind of data center's Special signal transmission cables, the cable includes cable core, sheath, composite shielding layer and outer jacket, the cable core is by the twisted molding of four pairs of shielded pairs, the shielding line includes conductor wire, insulating layer and sub-shield, the inside of sub-shield is equipped with sheath, the inside of sheath is equipped with two conductor wires, insulating layer is made of crosslinked polyetylene insulated, small sheath and outer jacket are made of low-smoke halogen-free polyolefin, increase small sheath between insulating layer and sub-shield, guarantee that cable pair has lesser mutual capacitance, reach the request signal transmission of data transmission private cable, sub-shield is worked out by copper wire, separation layer is used and is made up of polyester belt, first screen layer and secondary shielding layer are made up of aluminum plastic belt and proof copper-wire braided, composite shielding layer is compound using aluminum plastic belt and proof copper-wire braided Shielding, greatly reduces the electrostatic interference of outer bound pair circuit, increases the shielding properties of cable.
Description
Technical field
The present invention relates to cable machinery field, specially a kind of data center's Special signal transmission cable and its manufacturer
Method.
Background technique
With the development of society, the application of the new technologies such as cloud computing, big data, Internet of Things, data transmission cable make
With more and more, data transmission is mainly used for signal control with cable or data are transmitted, at present in many practical applications, data cable
All with common control cable or computer cable come instead of using but being wanted for the configured transmission to cable such as data center
Seek higher occasion, data dedicated transmissions cable require cable capacitor, inductance, in terms of have higher requirement, if this
A little occasions also use general control cable or computer cable to be unable to satisfy requirement, will cause signal decaying, distortion
The problems such as, referring to a kind of cable used as shielded cable is disclosed in patent document (CN101819826B), although right
Signal has certain shield effectiveness, but only one layer of shielded layer shield effectiveness be not strong, and shape easily occurs for cable internal structure
Become, and in cable manufacturing process, the copper wire after needing strand is sheared, and is segmented, and in actual processing, worker is often cut
Scissors is manually cut, and since the twisted rear intensity of copper wire is big, cutting difficulty is big.
Summary of the invention
The purpose of the present invention is to provide a kind of data center's Special signal transmission cable manufacturing methods, to solve at present very
In more practical applications, data cable is all with common control cable or computer cable come instead of using but for data center
Deng the more demanding occasion of the configured transmission to cable, data dedicated transmissions cable requires cable in the side such as capacitor, inductance, EMC
There is higher requirement in face, if these occasions also use general control cable or computer cable is to be unable to satisfy requirement
, the problems such as will cause signal decaying, be distorted, and in cable manufacturing process, the copper wire after needing strand is sheared, and is carried out
Segmentation, in actual processing, worker often cuts scissors and is manually cut, and since intensity is big after copper wire is twisted, cutting difficulty is greatly
Problem.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of data center's Special signal transmission cable, the cable include cable core, sheath, composite shielding layer and outer shield
Layer, for the cable core by the twisted molding of four pairs of shielded pairs, the shielding line includes conductor wire, insulating layer and sub-shield, split screen
The inside for covering layer is equipped with sheath, and the inside of sheath is equipped with two conductor wires, and the outside of two conductor wires is enclosed with insulating layer,
Be equipped with filler on the outside of two insulating layers between the inner wall of small sheath, the sheath include inner sheath and separation layer with it is interior
Filler between sheath, the inside of inner sheath is set there are four separation layer, and four separation layers are evenly distributed in inner sheath
Inside, four separation layers are wrapped in the outside of four sub-shields respectively, and the composite shielding layer includes first screen layer and
Two shielded layers, first screen layer are wrapped in the outside of inner sheath, and secondary shielding layer is wrapped in the outside of first screen layer, described outer
Sheath is wrapped in the outside of secondary shielding layer.
As a further solution of the present invention: four pairs of insulating layers in the minds of the cable are twisted to using different pitches,
Its twisting pitch is no more than 60mm, after each pair of insulating layer strand, extrudes small sheath outside, the smaller twisting pitch of use it is twisted and
At, and line strand pitch is different, can reduce electromagnetic interference of the signal transmission line by forceful electric power route in this way.
As a further solution of the present invention: the insulating layer is made of crosslinked polyetylene insulated, small sheath and outer jacket
It is made of low-smoke halogen-free polyolefin, increases small sheath between insulating layer and sub-shield, it is smaller to guarantee that cable pair has
Mutual capacitance, reach data transmission private cable request signal transmission.
As a further solution of the present invention: the sub-shield is worked out by copper wire, and separation layer is used by poly-
Ester band is made, and first screen layer and secondary shielding layer are made up of aluminum plastic belt and proof copper-wire braided, and composite shielding layer uses aluminum plastic belt
With proof copper-wire braided composite shielding, the electrostatic interference of outer bound pair circuit is greatly reduced, the shielding properties of cable is increased.
A kind of manufacturing method of data center's Special signal transmission cable, the manufacturing method specifically includes the following steps:
Step 1: copper wire used in conductor wire is drawn by wire drawing machine, increases its length, and section reduces, will
It is made annealing treatment after copper wire wire drawing；
Step 2: more copper wires are carried out to twisted processing by the way of twisting again with one heart, winds and collects after twisted, are turned
One end is gone to lower section, pulls protective plate, move the movable block of one end along the chute by the protective plate in dynamic shear,
Protective plate and cutting cutter position are staggered, the first hydraulic push rod is controlled to stranded copper wire movement by first hydraulic cylinder, is made
The cutter above support plate are obtained close to copper wire, second hydraulic cylinder controls the second hydraulic push rod to copper wire movement, so that transverse slat pushes away
The connecting rod for moving its both ends moves outward, so that two cutter separate, then controls the first hydraulic push rod by first hydraulic cylinder
It is mobile to stranded copper wire, so that copper wire is located between two cutter, the second hydraulic push rod is controlled by second hydraulic cylinder
Inside retraction second hydraulic cylinder, two cutter engagements cut off copper wire, do not need worker and shear by hand, easy to operate, convenient for real
The existing subsequent processing work of copper wire；
Step 3: the copper wire after cutting carries out extruded insulation layer using crosslinked polyethylene, and the outside to insulating layer includes outer
Extrude small sheath, worked out sub-shield wrapping small sheath package by copper wire, by polyester belt to four sub-shields into
Row cladding stranding, is filled four between sub-shield and polyester belt, the outside of inner sheath is wrapped up in the outside of polyester belt
Composite shielding layer；
Step 4: composite shielding layer outside is carried out extruding outer jacket using low-smoke halogen-free polyolefin, completes the system of cable
Make.
As a further solution of the present invention: the shear includes fixed plate, support plate and protective plate, the fixation
First hydraulic cylinder is fixedly installed on the top surface of plate, the inside of first hydraulic cylinder is equipped with the second hydraulic push rod, the second hydraulic push rod
One end be welded with support plate, be fixed with mounting rack at the top of support plate, the top of mounting rack is equipped with second hydraulic cylinder, second
The inside of hydraulic cylinder is equipped with the second hydraulic push rod, and one end of the second hydraulic push rod is equipped with transverse slat, and one end of the second hydraulic push rod is set
The medium position in transverse slat is set, the both ends of transverse slat are respectively equipped with connecting rod and, the peace of transverse slat two sides hinged with one end of two connecting rods
It shelves and is respectively equipped with cutter, one end of two cutter and the top surface of mounting rack are hinged, the other end difference of two connecting rods
Hinged with the medium position of two cutter, the side for installing top of support is equipped with clamping plate, and the inside of clamping plate is set close to medium position
There are two limited block, two cutter are separately positioned on the side of two limited blocks, and the bottom surface side of mounting rack is welded with fixation
Block offers sliding slot on the side wall of fixed block side, and the side of fixed block is equipped with movable block, and one end of movable block is equipped with protection
Plate, protective plate is hinged with movable block, and the other end of movable block is welded with sliding block, and sliding block is arranged in the sliding slot on fixed block side wall
Portion winds after twisted and collects in use, more copper wires to be carried out to twisted processing by the way of twisting again with one heart, and rotation is anti-
One end is gone to lower section, pulls protective plate, move the movable block of one end along the chute, by protective plate and cutter by backplate
Position is staggered, and controls the first hydraulic push rod to stranded copper wire movement, so that cutting above support plate by first hydraulic cylinder
For cutter close to copper wire, it is mobile to copper wire that second hydraulic cylinder controls the second hydraulic push rod so that transverse slat push the connecting rod at its both ends to
Outside is mobile, so that two cutter separate, then controls the first hydraulic push rod by first hydraulic cylinder and moves to stranded copper wire
It is dynamic, so that copper wire is located between two cutter, controlled in the second hydraulic push rod retraction second hydraulic cylinder by second hydraulic cylinder
Portion, two cutter engagements, cuts off copper wire, does not need worker and shear by hand, easy to operate, is easy to implement the subsequent processing of copper wire
Work.
Beneficial effects of the present invention:
1, in the present invention, four pairs of insulating layers in the minds of cable are twisted to using different pitches, and twisting pitch is little
After 60mm, each pair of insulating layer strand, small sheath is extruded outside, and the smaller twisting pitch of use is twisted, and line strand section
Away from different, electromagnetic interference of the signal transmission line by forceful electric power route can be reduced in this way；
2, in the present invention, insulating layer is made of crosslinked polyetylene insulated, and small sheath and outer jacket are by low smoke and zero halogen polyene
Hydrocarbon composition, increases small sheath between insulating layer and sub-shield, guarantees that cable pair has lesser mutual capacitance, reaches several
According to the request signal transmission of transmission private cable；
3, in the present invention, sub-shield is worked out by copper wire, and using being made up of polyester belt, first shields separation layer
Layer and secondary shielding layer are made up of aluminum plastic belt and proof copper-wire braided, and composite shielding layer uses aluminum plastic belt and proof copper-wire braided combined screen
It covers, greatly reduces the electrostatic interference of outer bound pair circuit, increase the shielding properties of cable；
4, in the present invention, more copper wires is carried out to twisted processing by the way of twisting again with one heart, winds and gathers up after twisted
Come, rotate protective plate, one end is gone into lower section, protective plate is pulled, moves the movable block of one end along the chute, by protective plate
It is staggered with cutting cutter position, the first hydraulic push rod is controlled to stranded copper wire movement, so that support plate by first hydraulic cylinder
For the cutter of top close to copper wire, second hydraulic cylinder controls the second hydraulic push rod to copper wire movement, so that transverse slat pushes its both ends
Connecting rod move outward so that two cutter separate, then the first hydraulic push rod is controlled to after being twisted by first hydraulic cylinder
Copper wire it is mobile so that copper wire is located between two cutter, passes through second hydraulic cylinder and control the second hydraulic push rod retraction second
Inside hydraulic cylinder, two cutter engagements cut off copper wire, do not need worker and shear by hand, easy to operate, after being easy to implement copper wire
Continuous processing work.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is a kind of structural schematic diagram of data center's Special signal transmission cable of the present invention；
Fig. 2 is the structural schematic diagram of shear in the present invention；
Fig. 3 is the rearview of shear in the present invention；
Fig. 4 is shear side view in the present invention；
Fig. 5 is the partial enlarged view A in the present invention；
In figure: 1, conductor wire；2, insulating layer；3, small sheath；4, sub-shield；5, separation layer；6, inner sheath；7, the first screen
Cover layer；8, secondary shielding layer；9, outer jacket；10, fixed plate；11, support plate；12, the first hydraulic push rod；13, first hydraulic cylinder；
14, mounting rack；15, second hydraulic cylinder；16, the second hydraulic push rod；17, transverse slat；18, connecting rod；19, clamping plate；20, cutter；21,
Limited block；22, protective plate；23, fixed block；24, sliding block；25, movable block.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
As shown in Figs. 1-5, a kind of data center's Special signal transmission cable, the cable include cable core, sheath, combined screen
Layer and outer jacket 9 are covered, for the cable core by the twisted molding of four pairs of shielded pairs, the shielding line includes conductor wire 1,2 and of insulating layer
Sub-shield 4, the inside of sub-shield 4 are equipped with sheath 3, and the inside of sheath 3 is equipped with two conductor wires 1, two conductor wires 1
Outside is enclosed with insulating layer 2, is equipped with filler, the sheath packet between two 2 outsides of insulating layer and the inner wall of small sheath 3
Include the filler between inner sheath 6 and separation layer 5 and inner sheath 6, the inside of inner sheath 6 is set there are four separation layer 5, and four
Separation layer 5 is evenly distributed in the inside of inner sheath 6, and four separation layers 5 are wrapped in the outside of four sub-shields 4, institute respectively
Stating composite shielding layer includes first screen layer 7 and secondary shielding layer 8, and first screen layer 7 is wrapped in the outside of inner sheath 6, and second
Shielded layer 8 is wrapped in the outside of first screen layer 7, and the outer jacket 9 is wrapped in the outside of secondary shielding layer 8.
2 pairs of four pairs of insulating layers in the minds of cable are twisted using different pitches, and twisting pitch is each pair of no more than 60mm
After 2 strand of insulating layer, small sheath 3 is extruded outside, and the smaller twisting pitch of use is twisted, and each not phase of line strand pitch
Together, electromagnetic interference of the signal transmission line by forceful electric power route can be reduced in this way.
Insulating layer 2 is made of crosslinked polyetylene insulated, and small sheath 3 and outer jacket 9 are made of low-smoke halogen-free polyolefin,
Increase small sheath 3 between insulating layer 2 and sub-shield 4, guarantee that cable pair has lesser mutual capacitance, reaches data transmission
The request signal transmission of private cable.
Sub-shield 4 is worked out by copper wire, and separation layer 5 is used and is made up of polyester belt, first screen layer 7 and second
Shielded layer 8 is made up of aluminum plastic belt and proof copper-wire braided, and composite shielding layer uses aluminum plastic belt and proof copper-wire braided composite shielding, subtracts significantly
The electrostatic interference for having lacked outer bound pair circuit, increases the shielding properties of cable.
A kind of manufacturing method of data center's Special signal transmission cable, the manufacturing method specifically includes the following steps:
Step 1: copper wire used in conductor wire 1 is drawn by wire drawing machine, increases its length, and section reduces, will
It is made annealing treatment after copper wire wire drawing；
Step 2: more copper wires are carried out to twisted processing by the way of twisting again with one heart, winds and collects after twisted, are turned
One end is gone to lower section, pulls protective plate 22, make the movable block 25 of one end along the chute by the protective plate 22 in dynamic shear
It is mobile, protective plate 22 and 20 position of cutter are staggered, the first hydraulic push rod 12 is controlled to after being twisted by first hydraulic cylinder 13
Copper wire it is mobile so that the cutter 20 of 11 top of support plate are close to copper wire, second hydraulic cylinder 15 controls the second hydraulic push rod 16
It is mobile to copper wire, so that transverse slat 17 pushes the connecting rod 18 at its both ends to move outward, so that two cutter 20 separate, then pass through
It is mobile to stranded copper wire that first hydraulic cylinder 13 controls the first hydraulic push rod 12 so that copper wire be located at two cutter 20 it
Between, it is controlled inside 16 retraction second hydraulic cylinder 15 of the second hydraulic push rod by second hydraulic cylinder 15, two cutter 20 engage, and cut
Disconnected copper wire, does not need worker and shears by hand, easy to operate, is easy to implement the subsequent processing work of copper wire；
Step 3: the copper wire after cutting carries out extruded insulation layer 2 using crosslinked polyethylene, and the outside to insulating layer 2 includes
Small sheath 3 is extruded outside, is worked out sub-shield 4 wrapping small sheath 3 package by copper wire, by polyester belt to four separated-shieldings
Layer 4 carries out cladding stranding, is filled between four sub-shields 4 and polyester belt, and the outside of polyester belt is to the outer of inner sheath 6
Wrap up composite shielding layer in side；
Step 4: composite shielding layer outside is carried out extruding outer jacket 9 using low-smoke halogen-free polyolefin, completes the system of cable
Make.
Shear includes fixed plate 10, support plate 11 and protective plate 22, is fixedly mounted on the top surface of the fixed plate 10
There is first hydraulic cylinder 13, the inside of first hydraulic cylinder 13 is equipped with the second hydraulic push rod 16, and one end of the second hydraulic push rod 16 is welded
There is a support plate 11, the top of support plate 11 is fixed with mounting rack 14, and the top of mounting rack 14 is equipped with second hydraulic cylinder 15, and second
The inside of hydraulic cylinder 15 is equipped with the second hydraulic push rod 16, and one end of the second hydraulic push rod 16 is equipped with transverse slat 17, the second hydraulic push rod
The medium position of transverse slat 17 is arranged in 16 one end, and the both ends of transverse slat 17 are respectively equipped with connecting rod 18 and one end with two connecting rods 18
Hingedly, cutter 20, one end of two cutter 20 and the top of mounting rack 14 are respectively equipped on the mounting rack 14 of 17 two sides of transverse slat
Face is hinged, and the other end of two connecting rods 18 is hinged with the medium position of two cutter 20 respectively, the side of 14 top surface of mounting rack
Equipped with clamping plate 19, the inside of clamping plate 19 is set close to medium position there are two limited block 21, and two cutter 20 are separately positioned on two
The side of a limited block 21, the bottom surface side of mounting rack 14 are welded with fixed block 23, offer on the side wall of 23 side of fixed block
Sliding slot, the side of fixed block 23 are equipped with movable block 25, and one end of movable block 25 is equipped with protective plate 22, protective plate 22 and movable block 25
Hingedly, the other end of movable block 25 is welded with sliding block 24, and sliding block 24 is arranged in inside the sliding slot on 23 side wall of fixed block, uses
When, more copper wires are carried out to twisted processing by the way of twisting again with one heart, winds and collects after twisted, rotate protective plate 22,
One end is gone into lower section, protective plate 22 is pulled, moves the movable block 25 of one end along the chute, by protective plate 22 and cutter
20 positions are staggered, and control the first hydraulic push rod 12 to stranded copper wire movement, so that support plate 11 by first hydraulic cylinder 13
For the cutter 20 of top close to copper wire, second hydraulic cylinder 15 controls the second hydraulic push rod 16 to copper wire movement, so that transverse slat 17 pushes away
The connecting rod 18 for moving its both ends moves outward, so that two cutter 20 separate, then controls the first liquid by first hydraulic cylinder 13
It presses push rod 12 mobile to stranded copper wire, so that copper wire is located between two cutter 20, is controlled by second hydraulic cylinder 15
Inside second hydraulic push rod, 16 retraction second hydraulic cylinder 15, two cutter 20 are engaged, and are cut off copper wire, are not needed worker's hammer-shears
It cuts, it is easy to operate, it is easy to implement the subsequent processing work of copper wire.
Beneficial effects of the present invention:
1, in the present invention, 2 pairs of four pairs of insulating layers in the minds of cable are twisted using different pitches, and twisting pitch is little
After 60mm, each pair of 2 strand of insulating layer, small sheath 3 is extruded outside, the smaller twisting pitch of use is twisted, and line strand
Pitch is different, can reduce electromagnetic interference of the signal transmission line by forceful electric power route in this way；
2, in the present invention, insulating layer 2 is made of crosslinked polyetylene insulated, and small sheath 3 and outer jacket 9 are poly- by low smoke and zero halogen
Alkene composition, increases small sheath 3 between insulating layer 2 and sub-shield 4, guarantees that cable pair has lesser mutual capacitance,
Reach the request signal transmission of data transmission private cable；
3, in the present invention, sub-shield 4 is worked out by copper wire, and separation layer 5 is used and is made up of polyester belt, the first screen
It covers layer 7 and secondary shielding layer 8 is made up of aluminum plastic belt and proof copper-wire braided, composite shielding layer is compound using aluminum plastic belt and proof copper-wire braided
Shielding, greatly reduces the electrostatic interference of outer bound pair circuit, increases the shielding properties of cable；
4, in the present invention, more copper wires is carried out to twisted processing by the way of twisting again with one heart, winds and gathers up after twisted
Come, rotate protective plate 22, one end is gone into lower section, protective plate 22 is pulled, moves the movable block 25 of one end along the chute, it will
Protective plate 22 is staggered with 20 position of cutter, controls the first hydraulic push rod 12 by first hydraulic cylinder 13 and moves to stranded copper wire
Dynamic, so that the cutter 20 of 11 top of support plate are close to copper wire, second hydraulic cylinder 15 controls the second hydraulic push rod 16 and moves to copper wire
It is dynamic, so that transverse slat 17 pushes the connecting rod 18 at its both ends to move outward, so that two cutter 20 separate, then hydraulic by first
It is mobile to stranded copper wire that cylinder 13 controls the first hydraulic push rod 12, so that copper wire is located between two cutter 20, by the
Two hydraulic cylinders 15 control inside 16 retraction second hydraulic cylinder 15 of the second hydraulic push rod, and two cutter 20 engage, and cut off copper wire, no
Worker is needed to shear by hand, it is easy to operate, it is easy to implement the subsequent processing work of copper wire.
The working principle of the invention: the present invention in use, copper wire used in conductor wire 1 is drawn by wire drawing machine,
Increase its length, section reduces, will be made annealing treatment after copper wire wire drawing, by more copper wires using it is concentric twist again by the way of into
The twisted processing of row, winds after twisted and collects, rotate protective plate 22, and one end is gone to lower section, protective plate 22 is pulled, makes it
The movable block 25 of one end moves along the chute, and protective plate 22 and 20 position of cutter are staggered, and passes through the control of first hydraulic cylinder 13 the
One hydraulic push rod 12 is mobile to stranded copper wire, so that the cutter 20 of 11 top of support plate are close to copper wire, second hydraulic cylinder
15 the second hydraulic push rods 16 of control are mobile to copper wire, so that transverse slat 17 pushes the connecting rod 18 at its both ends to move outward, so that two
A cutter 20 separate, then control the first hydraulic push rod 12 to stranded copper wire movement, so that copper by first hydraulic cylinder 13
Line is located between two cutter 20, is controlled in 16 retraction second hydraulic cylinder 15 of the second hydraulic push rod by second hydraulic cylinder 15
Portion, two cutter 20 engage, and cut off copper wire, the copper wire after cutting carries out extruded insulation layer 2 using crosslinked polyethylene, to insulation
The outside of layer 2 includes extruding small sheath 3 outside, is worked out sub-shield 4 wrapping small sheath 3 package by copper wire, passes through polyester
Band carries out cladding stranding to four sub-shields 4, is filled between four sub-shields 4 and polyester belt, outside polyester belt
Composite shielding layer is wrapped up to the outside of inner sheath 6 in side, outside being extruded on the outside of composite shielding layer using low-smoke halogen-free polyolefin
Sheath 9 completes the production of cable.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of data center's Special signal transmission cable, which is characterized in that the cable includes cable core, sheath, composite shielding
Layer and outer jacket (9), for the cable core by the twisted molding of four pairs of shielded pairs, the shielding line includes conductor wire (1), insulating layer
(2) it is equipped with sheath (3) with sub-shield (4), the inside of sub-shield (4), the inside of sheath (3) is equipped with two conductor wires
(1), the outside of two conductor wires (1) is enclosed with insulating layer (2), on the outside of two insulating layers (2) with the inner wall of small sheath (3) it
Between be equipped with filler, the sheath includes the filler between inner sheath (6) and separation layer (5) and inner sheath (6), interior shield
The inside of set (6) is set there are four separation layer (5), and four separation layers (5) are evenly distributed in the inside of inner sheath (6), and four
Separation layer (5) is wrapped in the outside of four sub-shields (4) respectively, and the composite shielding layer includes first screen layer (7) and
Two shielded layers (8), first screen layer (7) are wrapped in the outside of inner sheath (6), and secondary shielding layer (8) is wrapped in first screen layer
(7) outside, the outer jacket (9) are wrapped in the outside of secondary shielding layer (8).
2. a kind of data center's Special signal transmission cable according to claim 1, which is characterized in that in the minds of the cable
Four pairs of insulating layers (2) are twisted to using different pitches, and twisting pitch is no more than 60mm, each pair of insulating layer (2) pair twist
It after conjunction, extrudes outside small sheath (3), the smaller twisting pitch of use is twisted, and line strand pitch is different.
3. a kind of data center's Special signal transmission cable according to claim 1, which is characterized in that the insulating layer
(2) it is made of crosslinked polyetylene insulated, small sheath (3) and outer jacket (9) are made of low-smoke halogen-free polyolefin.
4. a kind of data center's Special signal transmission cable according to claim 1, which is characterized in that the sub-shield
(4) it is worked out by copper wire, separation layer (5) is used and is made up of polyester belt, first screen layer (7) and secondary shielding layer (8)
It is made up of aluminum plastic belt and proof copper-wire braided, composite shielding layer uses aluminum plastic belt and proof copper-wire braided composite shielding.
5. a kind of manufacturing method of data center's Special signal transmission cable, which is characterized in that the manufacturing method specifically include with
Lower step:
Step 1: copper wire used in conductor wire (1) is drawn by wire drawing machine, increases its length, and section reduces, by copper
It is made annealing treatment after silk wire drawing；
Step 2: more copper wires are carried out to twisted processing by the way of twisting again with one heart, winds and collects after twisted, rotation is anti-
One end is gone to lower section, pulls protective plate (22), move the movable block (25) of one end along the chute, will prevent by backplate (22)
Backplate (22) is staggered with cutter (20) position, by first hydraulic cylinder (13) control the first hydraulic push rod (12) to stranded
Copper wire is mobile, so that the cutter (20) above support plate (11), close to copper wire, second hydraulic cylinder (15) controls the second hydraulic thrust
Bar (16) is mobile to copper wire, so that transverse slat (17) pushes the connecting rod (18) at its both ends to move outward, so that two cutter
(20) it separates, then mobile to stranded copper wire by first hydraulic cylinder (13) control the first hydraulic push rod (12), so that copper wire
Between two cutter (20), the second hydraulic push rod (16) retraction second hydraulic cylinder is controlled by second hydraulic cylinder (15)
(15) internal, copper wire is cut off in two cutter (20) engagements；
Step 3: the copper wire after cutting carries out extruded insulation layer (2) using crosslinked polyethylene, and the outside to insulating layer (2) includes
Small sheath (3) are extruded outside, are worked out sub-shield (4) wrapping small sheath (3) package by copper wire, by polyester belt to four
Sub-shield (4) carries out cladding stranding, is filled between four sub-shields (4) and polyester belt, the outside of polyester belt is right
Wrap up composite shielding layer in the outside of inner sheath (6)；
Step 4: composite shielding layer outside is carried out extruding outer jacket (9) using low-smoke halogen-free polyolefin, completes the system of cable
Make.
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| CN201910393973.9A CN110010299A (en) | 2019-05-13 | 2019-05-13 | A kind of data center's Special signal transmission cable and its manufacturing method |
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| CN201910393973.9A CN110010299A (en) | 2019-05-13 | 2019-05-13 | A kind of data center's Special signal transmission cable and its manufacturing method |
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| CN111508650A (en) * | 2020-04-26 | 2020-08-07 | 淮南文峰航天电缆有限公司 | Cold-resistant and anti-magnetic interference data transmission cable |
| CN112331393A (en) * | 2020-09-11 | 2021-02-05 | 铜陵市铜都特种线缆有限公司 | Photoelectric hybrid cable and fixed-length cutting device of cable |
| CN115722609A (en) * | 2023-01-26 | 2023-03-03 | 常州安耐特电缆有限公司 | Eccentric adjusting device |
| CN116313279A (en) * | 2023-05-19 | 2023-06-23 | 深圳琦富瑞电子有限公司 | Anti-interference communication cable and anti-interference control method |
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