CN106128576B - Super flexible cable and preparation method thereof - Google Patents
Super flexible cable and preparation method thereof Download PDFInfo
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- CN106128576B CN106128576B CN201610717848.5A CN201610717848A CN106128576B CN 106128576 B CN106128576 B CN 106128576B CN 201610717848 A CN201610717848 A CN 201610717848A CN 106128576 B CN106128576 B CN 106128576B
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- 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
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- 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
-
- 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
- H01B3/443—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 vinylhalogenides or other halogenoethylenic compounds
-
- 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
- H01B7/0233—Cables with a predominant gas dielectric
-
- 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
- H01B7/0266—Disposition of insulation comprising one or more braided 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
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
Abstract
Super flexible cable and preparation method thereof, the super flexible cable includes：Inner wire；The insulating barrier of the inner wire periphery is arranged at, the insulating barrier is to have the low-density teflin tape of the air gap wrapped；It is arranged at the interior braiding layer of the insulating barrier periphery；It is arranged at the outer braiding layer of the interior braiding layer periphery；It is arranged at the restrictive coating of the outer braiding layer periphery.The present invention has the characteristics of communication frequency is high, attenuation constant is low, flexibility is good；And under the conditions of mechanical bend etc., the change in dielectric constant of insulation is very small, with stable insulation system.
Description
Technical field
The invention belongs to radio frequency and field of microwave communication, there is high mechanical stability and low nothing more particularly, to one kind
Super flexible cable of source intermodulation level and preparation method thereof.
Background technology
Cable is the element commonly used in the system for connect high-frequency signal path, and cable such as is being bent or reversed at the mechanical force
Change in size and the structure dislocation of each part of coaxial cable can be caused during effect, so as to influence the performance of communication system.Therefore it is
The performance of communication system is ensured, the mechanical stability of the cable of one of matched transmission component is proposed higher
It is required that.
Typical super flexible cable separates metal inner and outer conductor by polymer insulation and constituted, the cable of this composite construction
Acted on and during cable internal action each other by mechanical stress, the steady phase behaviour of machinery of cable can influenceed, particularly
Passive intermodulation level index.Traditional super flexible cable typically uses real core polytetrafluoroethylene (PTFE) as dielectric, double-deck tin-coated copper
Silk braiding is led as outer conductor, the cable of this structure when bearing the mechanical stresses such as alternating bending, vibration, impact or torsion
Body or cable internal structure can deform, so that the passive intermodulation level and total phase of cable change, be used for a long time
Shi Buneng meets stable low passive intermodulation requirement.In order to meet passive intermodulation electricity of the electronic equipment in the case of mechanical forces
Flat high requirement makes its inner wire, insulating barrier, outer conductor, it is necessary to design a kind of super flexible cable with highly stable structure
Structure can keep stabilization each other when by mechanical force, with low passive intermodulation level nature.
The content of the invention
, can be by machinery it is an object of the invention to provide the super flexible cable that a kind of structure has high stability and compactness
Ensure passive intermodulation level and the machinery steady phase performance of cable during stress.
It is a further object of the present invention to provide a kind of preparation method of super flexible cable.
In order to realize above-mentioned first purpose, the present invention takes following technical solution：
Super flexible cable, including：Inner wire；The insulating barrier of the inner wire periphery is arranged at, the insulating barrier is to have air
The low-density teflin tape in gap is wrapped；It is arranged at the interior braiding layer of the insulating barrier periphery；It is arranged at the interior braiding
The outer braiding layer of layer periphery；It is arranged at the restrictive coating of the outer braiding layer periphery.
Improved as one kind of super flexible cable of the present invention, the thickness of the low-density teflin tape for 0.10mm~
0.30mm。
Improved as one kind of super flexible cable of the present invention, the wrapped number of plies of low-density teflin tape is not less than 2 layers.
Improved as one kind of super flexible cable of the present invention, the rate of putting up of every layer of low-density teflin tape is not less than
40%.
Improved as one kind of super flexible cable of the present invention, the interior braiding layer is metal flat band braiding layer.
Improved as one kind of super flexible cable of the present invention, the width of the metal flat band is not less than 0.60mm, and thickness is not small
In 0.04mm, the count of interior braiding layer is not less than 96%.
Improved as one kind of super flexible cable of the present invention, the outer braiding layer is circle soft annealed wire braiding layer.
Improved as one kind of super flexible cable of the present invention, the count of the outer braiding layer is not less than 90%.
Improved as one kind of super flexible cable of the present invention, lapping layer is provided between the interior braiding layer and outer braiding layer.
Improved as one kind of super flexible cable of the present invention, the lapping layer is binding type lapping layer.
In order to realize above-mentioned second purpose, the present invention takes following technical solution：
The preparation method of super flexible cable, step is as follows：
Inner wire is provided；
The wrapped formation insulating barrier of inner wire is surrounded with low-density polytetrafluoroethylene film band；
Interior braiding layer is knitted to form in insulating barrier periphery；
With round wire outer braiding layer is knitted to form in interior braiding layer periphery；
The restrictive coating of tubulose is formed in outer braiding layer periphery；
Braiding layer in high-speed knitter braiding is crossed using metal flat band logical, set between the lower mould and upper mould of high-speed knitter
Put middle mould, upper, middle and lower mould is coaxial and arranged for interval, the braiding step of interior braiding layer is as follows：
Bandlet is installed on upper ingot and lower ingot, the tension adjustment of each spindle is good, and the bandlet of every ingot is penetrated
In the through hole of mould；
Examination braiding is carried out with 20~30 revs/min of speed, it is whether smooth in observation bandlet braiding during examination braiding,
Next step is carried out if smooth, examination braiding is carried out again after checking reason if not smooth；
The cored wire of tape insulation layer is passed through into lower mould, middle mould and upper mould, entered with 20~30 revs/min of speed in cored wire periphery
Shut down after the pre- braiding of braiding layer in row, one segment length of pre- braiding, structure inspection is carried out to the interior braiding layer woven in advance, if compiled
Knit structure qualified, carry out next step, as fruit structure is unqualified, braided parameter is adjusted, then re-start pre- braiding；
With braiding layer in 50~100 revs/min of speed braiding, bandlet completes to enter upper after preliminary braiding through middle mould
Mould, the braiding layer tentatively woven by upper mould centering mould is tightly woven.
Further, the cross sectional shape of the guide groove of the braiding guide wheel of the lower ingot of high-speed knitter is trapezoidal.
Further, the upper mould and middle mould are the tungsten steel die of working face mirror finish.
Further, the edge of the through hole of the upper mould has the arc chord angle that radius is 1mm~10mm.
Further, the edge of the through hole of the middle mould has the arc chord angle that radius is 5mm~10mm.
Further, the through-hole diameter of the upper mould is 2.9mm~3.3mm, and the through-hole diameter of middle mould is 20mm~40mm.
From above technical scheme, super flexible cable of the invention is low using the wrapped formation insulating barrier of low density PTFE band
The inner homogeneous of density PTFE tape gathers many microscopic pinholes, is decreased obviously its dielectric constant, so that cable has communication
The features such as frequency is high, attenuation constant is low, flexibility is good；And because the heat resistance of low density PTFE band is good, thermal coefficient of expansion
It is very small, thus under the conditions of mechanical bend etc., the change in dielectric constant of insulation is very small, with stable insulation system.And
And the present invention, when making cable, the weaving of internal braiding layer is improved, interior braiding layer is woven using bandlet, in utilization
Mould carries out examination braiding before formal braiding, by trying braiding step, checks that bandlet send band whether smooth, to avoid formal braiding
When there is anti-band and edge-curl phenomenon；In increase after mould, the preliminary braiding of braiding layer is completed by middle mould, the effect of upper mould is in middle mould
Carry out on the premise of tentatively weaving, the requirement fully according to cable is tightly woven to the braiding layer tentatively woven, so that interior compile
The combination of tissue layer and insulating barrier is closer, and structure is more stable, thus reduce under the conditions of mechanical stress braiding layer and insulating barrier it
Between produce relative movement.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment or description of the prior art
Accompanying drawing do simple introduction, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of the embodiment of the present invention 1；
Fig. 2 is the tangent plane structural representation of the cable of embodiment 1；
Fig. 3 is the structural representation of bandlet braider；
Fig. 4 is the structural representation that bandlet braider weaves mould；
Fig. 5 is the mplifying structure schematic diagram of part A in Fig. 3；
Fig. 6 is the passive level indicatrix of dynamic of the cable of embodiment 1；
Fig. 7 is the passive level indicatrix of dynamic of comparative example cable；
Fig. 8 is the structural representation of the embodiment of the present invention 2；
Fig. 9 is the tangent plane structural representation of the cable of embodiment 2.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, the super flexible cable of the present embodiment includes inner wire 1, the insulating barrier set gradually from inside to outside
2nd, interior braiding layer 3, outer braiding layer 4 and restrictive coating 5.Inner wire 1 is metal wire or metallic cable, it is preferred that inner wire 1 can be plating
Silver-copper wire or silver-copper plated steel clad wire or silver-plated copper stranded wire or silver-copper plated steel clad twisted wire.Insulating barrier 2 is arranged at the periphery of inner wire 1,
Insulating barrier is that the low-density polytetrafluoroethylene (PTFE) (PTFE) for having the air gap is formed with wrapped, further, low density PTFE band
Thickness is 0.10mm~0.30mm, and the rate of putting up of every layer of low density PTFE band is not less than 40%, and the wrapped number of plies is not less than 2 layers, around
The number of plies of bag can be according to product specification respective change.
Interior braiding layer 3 is arranged at the periphery of insulating barrier 2, and interior braiding layer 3 is that metal flat band (line) braiding is formed, such as by silver-plated copper
Lenticular wire or the braiding of tin plating copper strap wire or aluminium strip are formed, and the width of metal flat band is not less than 0.60mm, and thickness is not less than 0.04mm, interior
The count of braiding layer is not less than 96%.Outer braiding layer 4 is arranged at the periphery of interior braiding layer 3, and outer braiding layer 4 is circle soft metal
Line braiding is formed, further, and outer braiding layer is formed by tinned wird or silver-coated copper wire braiding, and the count of outer braiding layer is not
Less than 90%.
Restrictive coating 5 is arranged at the outer periphery of braiding layer 4, and restrictive coating 5 is tubular structure, plays a part of protecting cable.Sheath
Layer can use fluorinated ethylene propylene copolymer (Fluorinated ethylene propylene, abbreviation FEP) or low smoke and zero halogen
The thermoplasticity such as flame-proof polyethylene sheath level coating material is made.More specifically, in order that the construction of cable and transmission characteristic are stable, adopt
FEP restrictive coatings are made with crowded tubular type processing technology, or tubular type or squash type processing technology making low-smoke non-halogen flame-retardant are squeezed using half
Pe sheath, so that restrictive coating has preferable mechanical performance and high flame retardant, it is ensured that in cable mechanical strength and
The security used.
The preparation method of cable of the present invention is as follows：
Inner wire is provided；
The wrapped formation insulating barrier of inner wire is surrounded with low-density polytetrafluoroethylene film band；
With metal flat band interior braiding layer is knitted to form in insulating barrier periphery；
With round wire outer braiding layer is knitted to form in interior braiding layer periphery；
The restrictive coating of tubulose is formed in outer braiding layer periphery.
In order to improve the stability of the construction of cable, make cable that there is low intermodulation level index, the present invention uses metal flat band
To weave interior braiding layer, and the mould of the high-speed knitter for weaving interior braiding layer is improved, by upper mould and under
Increase a middle mould between mould, and accordingly improve weaving to obtain hard-packed interior braiding layer.Used in the present embodiment
High-speed knitter is transformed on the basis of the high-speed knitter with the model KMBMI of Jin Sheng plant equipment Co., Ltd
Braider, the structure of the braider is in addition to setting up middle mould, and other structures are identical with existing high-speed knitter.As shown in figure 3,
High-speed knitter includes being provided with the upper ingot of driving in braiding head 1, upper ingot 2, lower ingot 3, upper mould 5, lower mould 6 and middle mould 7, braiding head 1
The drive mechanism (not shown) of the drive mechanism of bandlet cabling and the lower ingot bandlet cabling of driving.Lower mould 6, middle mould 7 and upper mould 5 are under
Up it is arranged at intervals successively and three is coaxial, cored wire 4 passes through lower mould 6, middle mould 7 and upper mould 5.Lower mould 6 is arranged at by installation set 8
On braiding head 1, lower mould 6 is used for the swing for controlling cored wire, and positions the center of upper mould and middle mould.
During braiding, bandlet 100 is installed on spindle (upper ingot, lower ingot), the tension adjustment of each spindle is good, and will be every
The bandlet of ingot is penetrated in the through hole of middle mould；
Examination braiding is carried out with 20~30 revs/min of speed, it is whether smooth in observation bandlet braiding during examination braiding,
Next step is carried out if smooth, reason is checked if not smooth, for example：If causing winding or broken belt, middle mould is checked
Height and position it is whether suitable, by middle mould regulation arrive suitable position, it is to avoid winding and broken belt；
The cored wire 4 of tape insulation layer is passed through into lower mould 6, middle mould 7 and upper mould 5, with 20~30 revs/min of speed outside cored wire
Shut down, such as shut down after pre- 50 centimetres of braiding after enclosing the pre- braiding of braiding layer in carrying out, one segment length of braiding, internal braiding layer inspection
Its braiding structure is looked into, next step is carried out if braiding structure is qualified, as fruit structure is unqualified, braided parameter is adjusted,
Pre- braiding is re-started again；
With braiding layer in the braiding of 50~100 revs/min of speed, due to have between middle mould 7 and upper mould 5 one it is intersegmental every,
Bandlet 100 is completed after preliminary braiding through middle mould 7, and into the braiding layer tapered 9 of upper mould 5, braiding layer at this moment can't reach
To the requirement of product, the braiding layer tentatively woven using the upper centering mould 7 of mould 5 is woven, makes weave mesh closely smooth, reach again
To the requirement needed for product.
The interior braiding layer of the present invention is woven using bandlet, because braider has one to preset to the material of lower ingot
Running track, the material of each lower ingot is, from track operation, to be compiled compared in the metal wire knitted of traditional use pencil
Tissue layer, metal flat band is banding, the problem of winding, broken belt easily occur, therefore braiding speed is suitably reduced, to reach one
Individual good weave effect.
The inspection of braiding structure include density inspection, uniformity test, elasticity inspection, whether the conventional structure such as winding
Check, as density is undesirable, adjust pitch, such as cross the uniformity it is undesirable if adjustment spindle tension force, such as elasticity
It is undesirable, various sizes of upper mould is changed, whether mould position is adjusted in place etc. in then being checked if any winding.
As a preferred embodiment of the present invention, as shown in figure 5, the guide groove a of the braiding guide wheel 10 of lower ingot section shape
Shape is trapezoidal, and trapezoidal guide groove is more suitable for the shape of bandlet, it is ensured that still keep smooth during bandlet unwrapping wire, it is to avoid bandlet is rolled up
Folding, it is ensured that the uniformity of bandlet unwrapping wire and the uniformity of braiding, is easily pulled off or rolls up when improving the bandlet unwrapping wire of banding
Side phenomenon, reduces the influence to cable performance, improves weaving quality.Winding is found as checked during braiding, braiding can be also checked
Guide wheel has without exception.
The upper, middle and lower mould of the present embodiment is preferred to use wolfram steel and is made, and carries out minute surface throwing to the working face of upper mould and middle mould
Light, middle mould working face is smooth can to avoid bandlet coating (tin plating, silver-plated) from being worn, and upper mould working face is smooth can be avoided prelisting
The coating for knitting cable surface is stripped off.Further, the through-hole diameter of upper mould is 2.9mm~3.3mm, and the through-hole diameter of middle mould is
20mm~40mm, the through-hole diameter of upper mould is related to the elasticity woven, and the through-hole diameter of middle mould can ensure bandlet in upper mould
Carry out there are enough spaces to be woven in advance before tightly weaving.
It is furthermore preferred that as shown in figure 4, the edge of upper mould through hole is respectively provided with the arc chord angle that radius is 1mm~10mm, arc chord angle
The cable of pre- braiding can be made smoothly to slip into mould.The arc chord angle that it is 5mm~10mm for radius that the edge of middle mould through hole, which is respectively provided with,
Arc chord angle can ensure that bandlet is smooth before prelisting, prevent that bandlet from prelisting the anti-band of hair-weaving life or winding.
Because the count of interior braiding layer is very high, in braiding, bandlet easily produces crimping, anti-package and belt phenomenon,
The present invention is on the basis of existing high-speed knitter original structure, mould in increasing by one between upper and lower mould, and mould is formal in utilization
Examination braiding is carried out before braiding, by trying braiding step, checks whether bandlet line sending is smooth, it is anti-to avoid occurring during formal braiding
Band and edge-curl phenomenon；In increase after mould, the effect of upper mould is that on the premise of middle mould is carried out, the requirement fully according to cable is carried out
Tight braiding, so that the combination of interior braiding layer and insulating barrier is closer, structure is more stable, is compiled so as to reduce under the conditions of mechanical stress
Relative movement is produced between tissue layer and insulating barrier.Upper, middle mould can ensure that knitting tension is more stablized under high count, flat
Band can the smooth braiding of high speed.
Below by taking a specific application examples as an example, the concrete structure and effect of the present embodiment are explained in detail,
The cable and comparative example cable of embodiment 2 are 141 specification cables, and their concrete structure is as shown in the table：
The cable of embodiment 1 and the cable of comparative example are entered into Mobile state passive intermodulation level detecting using PIM testers, surveyed
Test result is：The cable of comparative example is being not more than -135dBc by passive intermodulation level index when being moved under mechanical stress, is implemented
The cable of example 1 is being not more than -160dBc by passive intermodulation level index when being moved under mechanical stress, with it is excellent it is passive mutually
Tonality energy.Fig. 6 is the passive level indicatrix of dynamic of the cable of embodiment 1, and Fig. 7 is the passive level index of dynamic of comparative example cable
Figure, can be seen that, the mechanical stability of the cable of embodiment 1 is improved by Fig. 6 and Fig. 7, while also ensure that cable standing wave
And loss stability.
Embodiment 2
As shown in Figure 8 and Figure 9, the present embodiment place different from embodiment 1 is：In interior braiding layer 3 and outer braiding layer 4
Between be provided with lapping layer 6, lapping layer 6 can or silver-plated copper foil wrapped for polyimide aluminum plastic belt be wrapped or plastic-aluminum combined shielding band
It is wrapped to form.It is preferred that, lapping layer is binding type lapping layer, and caking property lapping layer can make lapping layer formation unified structure, so that
Prevent during bending or actual dynamic use because producing micro-displacement between twining package tape with respect to slip, it is to avoid cable is integrally damaged
Consumption increase and the overall mechanically stable characteristic of destruction cable, it is ensured that the uniformity and stability of cable entirety axial arrangement, make
Cable has more excellent mechanical stability.
The super flexible cable of the present invention, interior braiding layer is using the braiding of metal flat band, so that in wrapped exhausted of low density PTFE band
Back-up coat is formed outside edge layer, reinforcing stabilization is played to cable configuration；Outer braiding layer is woven using metal round wires, is made
The stress that be produced in mechanical oscillation or bending can be released, it is ensured that the geometry of cable and internal structure it is steady
It is qualitative, so as to ensure that the steady phase behaviour of cable.
In preferred scheme, increase binding type lapping layer in the middle of inside and outside braiding layer so that constitute and more unify between belt
Stable entirety, can effectively prevent from vibrating and bending the destruction to the construction of cable and shape, release is insulated in process of production
The stress produced with around-packing technology, will not occur relative displacement during mechanical oscillation use or when bending, improve cable
Overall mechanical bend performance, constitutes more stable coaxial configuration, it is ensured that the cable should in the machinery such as vibration, bend crash
The excellent steady phase behaviour of machinery is kept under force conditions.
Various pieces are described by the way of progressive in this specification, and what each some importance illustrated is and other parts
Difference, between various pieces same or similar part mutually referring to.Syntagmatic between these parts is simultaneously
Form more than disclosed in embodiment, the foregoing description of the disclosed embodiments enables professional and technical personnel in the field
Realize or using the present invention.A variety of modifications to these embodiments will be apparent for those skilled in the art
, generic principles defined herein can without departing from the spirit or scope of the present invention, in other embodiments
It is middle to realize.Therefore, the present invention is not intended to be limited to embodiment illustrated herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (6)
1. the preparation method of super flexible cable, step is as follows：
Inner wire is provided；
The wrapped formation insulating barrier of inner wire is surrounded with low-density polytetrafluoroethylene film band；
Interior braiding layer is knitted to form in insulating barrier periphery；
With round wire outer braiding layer is knitted to form in interior braiding layer periphery；
The restrictive coating of tubulose is formed in outer braiding layer periphery；
It is characterized in that：
Braiding layer in high-speed knitter braiding is crossed using metal flat band logical, in being set between the lower mould and upper mould of high-speed knitter
Mould, upper, middle and lower mould is coaxial and arranged for interval, and the braiding step of interior braiding layer is as follows：
Bandlet is installed on upper ingot and lower ingot, the tension adjustment of each spindle is good, and the bandlet of every ingot is penetrated into middle mould
In through hole；
Examination braiding is carried out with 20~30 revs/min of speed, it is whether smooth in observation bandlet braiding during examination braiding, if
It is smooth, next step is carried out, examination braiding is carried out again after checking reason if not smooth；
The cored wire of tape insulation layer is passed through into lower mould, middle mould and upper mould, carried out with 20~30 revs/min of speed in cored wire periphery interior
Shut down after the pre- braiding of braiding layer, one segment length of pre- braiding, structure inspection is carried out to the interior braiding layer woven in advance, if braiding knot
Structure is qualified, carries out next step, as fruit structure is unqualified, braided parameter is adjusted, then re-start pre- braiding；
With braiding layer in 50~100 revs/min of speed braiding, bandlet enters upper mould after completing preliminary braiding through middle mould, by
The braiding layer that upper mould centering mould tentatively weaves tightly is woven.
2. the preparation method of super flexible cable as claimed in claim 1, it is characterised in that：The braiding of the lower ingot of high-speed knitter is led
The cross sectional shape of the guide groove of wheel is trapezoidal.
3. the preparation method of super flexible cable as claimed in claim 1, it is characterised in that：The upper mould and middle mould are working face mirror
The tungsten steel die of mirror polish.
4. the preparation method of super flexible cable as claimed in claim 1, it is characterised in that：The edge of the through hole of the upper mould has
Radius is 1mm~10mm arc chord angle.
5. the preparation method of super flexible cable as claimed in claim 1, it is characterised in that：The edge of the through hole of the middle mould has
Radius is 5mm~10mm arc chord angle.
6. the preparation method of super flexible cable as claimed in claim 1, it is characterised in that：The through-hole diameter of the upper mould is
2.9mm~3.3mm, the through-hole diameter of middle mould is 20mm~40mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610717848.5A CN106128576B (en) | 2016-08-24 | 2016-08-24 | Super flexible cable and preparation method thereof |
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|---|---|---|---|
| CN201610717848.5A CN106128576B (en) | 2016-08-24 | 2016-08-24 | Super flexible cable and preparation method thereof |
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| CN108950856A (en) * | 2018-07-21 | 2018-12-07 | 徐州恒辉编织机械有限公司 | A kind of compound pipeline complex pipeline winding braiding all-in-one machine |
| CN112582099A (en) * | 2020-12-05 | 2021-03-30 | 福建微波通通信技术有限公司 | Flexible radio frequency cable |
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| CN201741784U (en) * | 2010-07-15 | 2011-02-09 | 中国电子科技集团公司第二十三研究所 | Super flexible low-loss stable-phase radio-frequency cable |
| ES2628905T3 (en) * | 2012-12-13 | 2017-08-04 | Federal-Mogul Powertrain, Inc. | Coaxial cable and its construction method |
| CN203056066U (en) * | 2012-12-28 | 2013-07-10 | 辽宁金环电缆有限公司 | A heat-resistant flexible low-loss radio-frequency coaxial cable |
| CN203056072U (en) * | 2012-12-28 | 2013-07-10 | 辽宁金环电缆有限公司 | Solid-core polytetrafluoroethylene insulation semi-flexible-type radio-frequency coaxial cable |
| CN203056069U (en) * | 2012-12-28 | 2013-07-10 | 辽宁金环电缆有限公司 | High-temperature resistance soft low-loss radio-frequency coaxial cable |
| CN104139136A (en) * | 2013-05-09 | 2014-11-12 | 赵静 | Wire retracting device for metal wire mesh knitting machine |
| CN103390453A (en) * | 2013-07-29 | 2013-11-13 | 江苏通光电子线缆股份有限公司 | Light anti-jamming cable and preparation method thereof |
| CN204732226U (en) * | 2015-07-13 | 2015-10-28 | 广东金贝尔通信科技有限公司 | A kind of wolfram steel braiding mould |
| CN105185474B (en) * | 2015-10-09 | 2017-09-08 | 中天射频电缆有限公司 | A kind of design of metal tape longitudinal tubing tools frock and its technique |
| CN105355335A (en) * | 2015-12-08 | 2016-02-24 | 浙江兆龙线缆有限公司 | Four-head longitudinal wrapping die |
| CN205959646U (en) * | 2016-08-24 | 2017-02-15 | 珠海汉胜科技股份有限公司 | Super gentle cable |
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