CN105761841A - Processing device for telecommunications room power supply soft cable - Google Patents
Processing device for telecommunications room power supply soft cable Download PDFInfo
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- CN105761841A CN105761841A CN201510980059.6A CN201510980059A CN105761841A CN 105761841 A CN105761841 A CN 105761841A CN 201510980059 A CN201510980059 A CN 201510980059A CN 105761841 A CN105761841 A CN 105761841A
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- plane
- copper conductor
- cambered surface
- wheel
- substrate
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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
- H01B13/02—Stranding-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a processing device for a telecommunications room power supply soft cable, which comprises two groups of pay-out stands, two groups of tension rods, a front towing device, a positioning device, an extruder, a cooling water tank and a take-up frame. Each plane guide wheel mechanism comprises a plane round wheel whose end surface is a plane surface and which is arranged parallelly to a substrate; the upper end and the lower end of the plane surface are provided with blocks respectively; a through hole located in the center of the plane round wheel is arranged at the upper end of a first supporting bar via a bearing; the plane round wheel can rotate around the first supporting bar; the lower end of the first supporting bar in the plane guide wheel mechanism is embedded in a first mounting groove and arranged on the substrate via a nut; a wire concentrating through hole of a wire concentrating seat, the plane round wheels and camber round wheels are located on the same plane, the camber round wheels are located between the wire concentrating seat and the plane round wheels, and the interval between the two plane round wheels is 1.2 times that between the two camber round wheels. The not round problem of the cable of the existing semicircular conductor is solved, the rolling over phenomenon when the semicircular conductor is used for cabling can be effectively solved, the production efficiency is improved by 30%, and generation of stress is reduced.
Description
Technical field
The present invention relates to a kind of cable twist device, particularly relate to the processing unit (plant) of a kind of flexible cable of powering for telecommunications room.
Background technology
Communication flexible cable be a kind of for moving, the equipment of telecommunications, the communication machine room such as Netcom is for electric connection line, the performances such as product requirement is soft, fire-retardant.For guaranteeing the roundness of cable, cable core domestic demand adds more filling member, causes that finished cable external diameter is relatively big, and poor radiation, cable laying takes up room greatly, and the manufacturing cost of cable also increases.In power cable manufacturing, multicore cable forms mainly through stranded, for ensureing core rounding, cabling process adds filler, thus causing that the outside diameter of cable is big, weak heat-dissipating, cost are high, for the outside diameter of cable that saves material, reduces, reduce cables manufacturing cost, technical staff have devised the special-shaped conductor structures such as semicircular conductor, sector conductor, shoe conductor, this conductor structure solves that the outside diameter of cable is big, weak heat-dissipating, high in cost of production shortcoming substantially, but in cable production process, there is certain difficulty, particularly in cabling process.
Summary of the invention
The present invention provides the processing unit (plant) of a kind of flexible cable of powering for telecommunications room, this processing unit (plant) solves the not rounding problem of existing communication data flexible cable, standing up phenomenon when effectively prevent communication data flexible cable stranding, production efficiency improves 30% and reduces the generation of stress.
For reaching above-mentioned purpose, the technical solution used in the present invention is: the processing unit (plant) of a kind of flexible cable of powering for telecommunications room, described telecommunications room is powered, and to include at least one respectively stranded by several copper strand wires and through the first semicircle copper conductor of mould compacting, the second semicircle copper conductor for flexible cable, this first semicircle copper conductor, the second semicircle respective end contact of copper conductor form round wire pair, and a restrictive coating extrudes in described round wire pair；
Described process equipment includes 2 groups of pay off racks, 2 groups of tension rails, pre-traction device, positioner, extruding machine, bosh and take-up stand；
Described being used for leaving with the first semicircle copper conductor in 2 groups of pay off racks of unwrapping wire one group, another group is used for leaving with the second semicircle copper conductor；
Described 2 groups of tension rails, for regulating the first semicircle copper conductor, the second semicircle copper conductor laying tension in cabling process；
Described pre-traction device, is used for stablizing the first semicircle copper conductor, the second semicircle copper conductor；
Described positioner includes fixed mount, 2 plane guide wheel mechanisms, 2 cambered surface guide wheel mechanisms and center and has the line concentration base of line concentration through hole；
Described fixed mount is made up of bracing frame and substrate, and this substrate one end is moved towards direction and is provided with the first mounting groove, the second mounting groove abreast along being perpendicular to, and described line concentration base is installed on the substrate other end, and described second mounting groove is between the first mounting groove and line concentration base；
It is plane face and the flat circle wheel placed with substrate-parallel that described plane guide wheel mechanism includes end face, described plane face upper and lower end is respectively equipped with block, this through hole being positioned at flat circle wheel center is installed on the first support stick upper end by a bearing, and this flat circle wheel can rotate around the first support stick；
It is cambered surface face and the cambered surface circular wheel placed with substrate-parallel that described cambered surface guide wheel mechanism includes end face, and this through hole being positioned at cambered surface circular wheel center is installed on the second support stick upper end by a bearing, and this cambered surface circular wheel can rotate around the second support stick；Described first semicircle copper conductor and the second semicircle copper conductor take turns opposing line the plane-plane contacts flat with it of sidling along 2 flat circle respectively, the described first semicircle copper conductor and the second semicircle copper conductor respectively along 2 cambered surface circular wheel opposite sides cablings and with its arc plane-plane contact；
In described plane guide wheel mechanism, the first support stick lower end embeds in the first mounting groove and is installed on substrate by nut, in described cambered surface guide wheel mechanism, the second support stick lower end embeds in the second mounting groove and is installed on substrate by nut, the line concentration through hole of described line concentration base, flat circle are taken turns, cambered surface circular wheel is in the same plane and cambered surface circular wheel is between line concentration base and flat circle are taken turns, 1.2 times of the interval being spaced apart described 2 curved circular wheel of described 2 flat circle wheel；
Described extruding machine, is used in described round wire extruding one layer of restrictive coating；
Described bosh, for cooling down the flexible cable from described extruding machine；
Described take-up stand, is used for receiving and keeping described communication flexible cable；
The described interval of 2 flat circle wheel is 100:3 ~ 6 with the diameter proportion of described round wire pair.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1, the present invention powers the processing unit (plant) of flexible cable for telecommunications room, and it includes fixed mount, 2 arc guide wheel mechanisms, 2 plane guide wheel mechanisms and center and has the line concentration base of line concentration through hole；Described fixed mount is made up of bracing frame and substrate, and this substrate one end is moved towards direction and is provided with the first mounting groove, the second mounting groove abreast along being perpendicular to, and described line concentration base is installed on the substrate other end, and described second mounting groove is between the first mounting groove and line concentration base；It is arcwall face and the curved circular wheel placed with substrate-parallel that described arc guide wheel mechanism includes end face, and this through hole being positioned at curved circular wheel center is installed on the second support stick upper end by a bearing, and this curved circular wheel can rotate around the second support stick；It is plane face and the flat circle wheel placed with substrate-parallel that described plane guide wheel mechanism includes end face, this through hole being positioned at flat circle wheel center is installed on the first support stick upper end by a bearing, this flat circle wheel can rotate around the first support stick, described first semicircle copper conductor and the second semicircle copper conductor respectively along flat circle wheel outside and contact with its arcwall face, then through inside cambered surface circular wheel and plane-plane contact flat with it, solve the not rounding problem of the cable of existing semicircular conductor, phenomenon is stood up when effectively prevent semicircular conductor stranding, production efficiency improves 30% and reduces the generation of stress.
null2、The present invention powers the processing unit (plant) of flexible cable for telecommunications room，Optimize 2 curved circular wheel intervals further、2 flat circle wheel intervals、Round wire is to the matching relationship between diameter and line concentration through-hole diameter，I.e. 1.2 times of the interval being spaced apart described 2 curved circular wheel of 2 flat circle wheels，The ratio of diameter Yu the line concentration through-hole diameter of line concentration base is 1:1.05 ~ 1.15 by round wire，The interval of 2 flat circle wheels is 100:3 ~ 6 with the diameter proportion of described round wire pair，Solve the not rounding problem of the cable of existing semicircular conductor further，Phenomenon is stood up when effectively prevent semicircular conductor stranding，Production efficiency improves 30% and reduces the generation of stress，Avoid core bigger than normal owing to standing up the external diameter caused in process of production、Insulating barrier damages、Insulation resistance declines、The quality problems such as cable breakdown，The stability making cable is guaranteed；Secondly as core has torsion in cabling process, the stress on core is relatively big, and this kind of stress needs to be cancelled, and otherwise core can stand up because stress is relatively big；If less than 1.1 ~ 1.3 times, suffered stress can not be entirely through guide wheel and offset, and core easily stands up；If more than, it is bigger that guide wheel acts on core, the friction on core surface is relatively big, and meeting Damage to insulation layer time serious, thus damaging cable, it it is control conductor external diameter during stranding, need to be controlled by the mould of certain size, and line concentration through hole herein plays the effect of mould, if less than wire core diameter, then core can not pass through line concentration through hole, it is impossible to produces；If too big, it is very tight that core can not be pressed when by line concentration through hole, and core can be made loose, and external diameter is relatively big, the material of subsequent handling is caused waste, product size can be caused time serious defective.
Accompanying drawing explanation
Accompanying drawing 1 is powered flexible cable structural representation for telecommunications room of the present invention；
Accompanying drawing 2 is powered the processing unit (plant) structural representation of flexible cable for telecommunications room for the present invention；
Accompanying drawing 3 is the partial structurtes schematic diagram of accompanying drawing 1；
Accompanying drawing 4 is positioning device structure schematic diagram of the present invention；
Accompanying drawing 5 is plane guide wheel mechanism structural representation of the present invention；
Accompanying drawing 6 is arc guide wheel mechanism structural representation of the present invention.
In the figures above: 1, semicircle core；11, the first semicircle copper conductor；12, the second semicircle copper conductor；2, round wire pair；3, restrictive coating；4, pre-traction device；5, positioner；6, fixed mount；61, bracing frame；62, substrate；631, the first mounting groove；632, the second mounting groove；633, the 3rd mounting groove；64, nut；7, plane guide wheel mechanism；71, plane face；72, flat circle wheel；73, through hole；74, bearing；75, the first support stick；8, cambered surface guide wheel mechanism；81, cambered surface face；82, cambered surface circular wheel；83, through hole；84, bearing；85, the second support stick；9, line concentration base；91, line concentration through hole；10, pay off rack；20, tension rail；30, extruding machine；40, take-up stand；50, bosh.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1: the processing unit (plant) of a kind of flexible cable of powering for telecommunications room, described telecommunications room is powered, and to include at least one respectively stranded by several copper strand wires and through first semicircle semicircle copper conductor 12 of copper conductor 11, second of mould compacting for flexible cable 1, this semicircle respective end contact of copper conductor 12 of the first semicircle copper conductor 11, second forms round wire to 2, and a restrictive coating 3 extrudes in described round wire 2；
Described efficient stranding device includes 10,2 groups of tension rails 20 of 2 groups of pay off racks, pre-traction device 4, positioner 5, extruding machine 30, bosh 50 and take-up stand 40；
Described being used for leaving with the first semicircle copper conductor 11 in 2 groups of pay off racks 10 of unwrapping wire one group, another group is used for leaving with the second semicircle copper conductor 12；
Described 2 groups of tension rails 20, for regulating the first semicircle semicircle copper conductor 12 laying tension in cabling process of copper conductor 11, second；
Described pre-traction device 4, is used for stablizing the first semicircle semicircle copper conductor 12 of copper conductor 11, second；
Described positioner 5 includes fixed mount 7,2 cambered surface guide wheel mechanisms 8 of 6,2 plane guide wheel mechanisms and center has the line concentration base 9 of line concentration through hole 91；
Described fixed mount 6 is made up of bracing frame 61 and substrate 62, this substrate 62 one end is moved towards direction and is provided with first mounting groove the 631, second mounting groove 632 abreast along being perpendicular to, described line concentration base 9 is installed on substrate 62 other end, and described second mounting groove 632 is between the first mounting groove 631 and line concentration base 9；
Described plane guide wheel mechanism 7 includes the flat circle wheel 72 that end face is plane face 71 and placement parallel with substrate 62, described plane face 71 upper and lower end is respectively equipped with block 711, this is positioned at flat circle and takes turns the through hole 73 at 72 centers and be installed on the first support stick 75 upper end by a bearing 74, and this flat circle wheel 72 can rotate around the first support stick 75；
It is cambered surface face 81 and the cambered surface circular wheel 82 of placement parallel with substrate 62 that described cambered surface guide wheel mechanism 8 includes end face, this through hole 83 being positioned at cambered surface circular wheel 82 center is installed on the second support stick 85 upper end by a bearing 84, and this cambered surface circular wheel 82 can rotate around the second support stick 85；Described first semicircle copper conductor 11 and the second semicircle copper conductor 12 are taken turns 72 along 2 flat circle respectively and opposing sidled line and contact with its plane face 71, the described first semicircle copper conductor 11 with the second semicircle copper conductor 12 respectively along 2 cambered surface circular wheel 82 opposite sides cablings and contact with its cambered surface face 81；Described first semicircle copper conductor 11 and the second semicircle copper conductor 12 respectively along flat circle wheel outside plane-plane contact flat with it, then through inside cambered surface circular wheel and with its arc plane-plane contact；Line concentration through hole 91 then through line concentration base 9 converges；
In described plane guide wheel mechanism 7, the first support stick 75 lower end embeds in the first mounting groove 631 and is installed on substrate 62 by nut 64, in described cambered surface guide wheel mechanism 8, the second support stick 85 lower end embeds in the second mounting groove 632 and is installed on substrate 62 by nut 64, the line concentration through hole 91 of described line concentration base 9, flat circle wheel 72, cambered surface circular wheel 82 is in the same plane and cambered surface circular wheel 82 is taken turns between 72 at line concentration base 9 and flat circle, 1.2 times of the interval being spaced apart described 2 curved circular wheel 82 of described 2 flat circle wheel 72；
Described extruding machine 30, for extruding one layer of restrictive coating 3 in described round wire to 2；
Described bosh 50, for cooling down the flexible cable from described extruding machine 30；
Described take-up stand 40, is used for receiving and keeping described communication flexible cable.
The diameter proportion of 2 is 100:3.5 by the interval of above-mentioned 2 flat circle wheel 72 and described round wire.
The ratio of 2 diameters Yu line concentration through hole 91 diameter of line concentration base 9 is 1:1.1 by above-mentioned round wire.
Embodiment 2: the processing unit (plant) of a kind of flexible cable of powering for telecommunications room, described telecommunications room is powered, and to include at least one respectively stranded by several copper strand wires and through first semicircle semicircle copper conductor 12 of copper conductor 11, second of mould compacting for flexible cable 1, this semicircle respective end contact of copper conductor 12 of the first semicircle copper conductor 11, second forms round wire to 2, and a restrictive coating 3 extrudes in described round wire 2；
Described efficient stranding device includes 10,2 groups of tension rails 20 of 2 groups of pay off racks, pre-traction device 4, positioner 5, extruding machine 30, bosh 50 and take-up stand 40；
Described being used for leaving with the first semicircle copper conductor 11 in 2 groups of pay off racks 10 of unwrapping wire one group, another group is used for leaving with the second semicircle copper conductor 12；
Described 2 groups of tension rails 20, for regulating the first semicircle semicircle copper conductor 12 laying tension in cabling process of copper conductor 11, second；
Described pre-traction device 4, is used for stablizing the first semicircle semicircle copper conductor 12 of copper conductor 11, second；
Described positioner 5 includes fixed mount 7,2 cambered surface guide wheel mechanisms 8 of 6,2 plane guide wheel mechanisms and center has the line concentration base 9 of line concentration through hole 91；
Described fixed mount 6 is made up of bracing frame 61 and substrate 62, this substrate 62 one end is moved towards direction and is provided with first mounting groove the 631, second mounting groove 632 abreast along being perpendicular to, described line concentration base 9 is installed on substrate 62 other end, and described second mounting groove 632 is between the first mounting groove 631 and line concentration base 9；
Described plane guide wheel mechanism 7 includes the flat circle wheel 72 that end face is plane face 71 and placement parallel with substrate 62, described plane face 71 upper and lower end is respectively equipped with block 711, this is positioned at flat circle and takes turns the through hole 73 at 72 centers and be installed on the first support stick 75 upper end by a bearing 74, and this flat circle wheel 72 can rotate around the first support stick 75；
It is cambered surface face 81 and the cambered surface circular wheel 82 of placement parallel with substrate 62 that described cambered surface guide wheel mechanism 8 includes end face, this through hole 83 being positioned at cambered surface circular wheel 82 center is installed on the second support stick 85 upper end by a bearing 84, and this cambered surface circular wheel 82 can rotate around the second support stick 85；Described first semicircle copper conductor 11 and the second semicircle copper conductor 12 are taken turns 72 along 2 flat circle respectively and opposing sidled line and contact with its plane face 71, the described first semicircle copper conductor 11 with the second semicircle copper conductor 12 respectively along 2 cambered surface circular wheel 82 opposite sides cablings and contact with its cambered surface face 81；
In described plane guide wheel mechanism 7, the first support stick 75 lower end embeds in the first mounting groove 631 and is installed on substrate 62 by nut 64, in described cambered surface guide wheel mechanism 8, the second support stick 85 lower end embeds in the second mounting groove 632 and is installed on substrate 62 by nut 64, the line concentration through hole 91 of described line concentration base 9, flat circle wheel 72, cambered surface circular wheel 82 is in the same plane and cambered surface circular wheel 82 is taken turns between 72 at line concentration base 9 and flat circle, 1.2 times of the interval being spaced apart described 2 curved circular wheel 82 of described 2 flat circle wheel 72；
Described extruding machine 30, for extruding one layer of restrictive coating 3 in described round wire to 2；
Described bosh 50, for cooling down the flexible cable from described extruding machine 30；
Described take-up stand 40, is used for receiving and keeping described communication flexible cable.
The diameter proportion of 2 is 100:5 by the interval of above-mentioned 2 flat circle wheel 72 and described round wire.
The ratio of 2 diameters Yu line concentration through hole 91 diameter of line concentration base 9 is 1:1.12 by above-mentioned round wire.
Distance scalable between above-mentioned line concentration base 9 and the second mounting groove 632.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (1)
1. power the processing unit (plant) of flexible cable for telecommunications room for one kind, it is characterized in that: described telecommunications room is powered, and to include at least one respectively stranded by several copper strand wires and through the first semicircle copper conductor (11) of mould compacting, the second semicircle copper conductor (12) for flexible cable (1), this first semicircle copper conductor (11), the second semicircle respective end contact of copper conductor (12) form round wire to (2), and a restrictive coating (3) extrudes in described round wire (2)；
Described efficient stranding device includes 2 groups of pay off racks (10), 2 groups of tension rails (20), pre-traction device (4), positioner (5), extruding machine (30), bosh (50) and take-up stand (40)；
Described being used for leaving with the first semicircle copper conductor (11) in 2 groups of pay off racks (10) of unwrapping wire one group, another group is used for leaving with the second semicircle copper conductor (12)；
Described 2 groups of tension rails (20), are used for regulating the first semicircle copper conductor (11), the second semicircle copper conductor (12) laying tension in cabling process；
Described pre-traction device (4), is used for stablizing the first semicircle copper conductor (11), the second semicircle copper conductor (12)；
Described positioner (5) includes fixed mount (6), 2 plane guide wheel mechanisms (7), 2 cambered surface guide wheel mechanisms (8) and center and has the line concentration base (9) of line concentration through hole (91)；
Described fixed mount (6) is made up of bracing frame (61) and substrate (62), this substrate (62) one end is moved towards direction and is provided with the first mounting groove (631), the second mounting groove (632) abreast along being perpendicular to, described line concentration base (9) is installed on substrate (62) other end, and described second mounting groove (632) is positioned between the first mounting groove (631) and line concentration base (9)；
Described plane guide wheel mechanism (7) includes flat circle wheel (72) that end face is plane face (71) and placement parallel with substrate (62), described plane face (71) upper and lower end is respectively equipped with block (711), this through hole (73) being positioned at flat circle wheel (72) center is installed on the first support stick (75) upper end by a bearing (74), and this flat circle wheel (72) can rotate around the first support stick (75)；
It is cambered surface face (81) and the cambered surface circular wheel (82) of placement parallel with substrate (62) that described cambered surface guide wheel mechanism (8) includes end face, this through hole (83) being positioned at cambered surface circular wheel (82) center is installed on the second support stick (85) upper end by a bearing (84), and this cambered surface circular wheel (82) can rotate around the second support stick (85)；
In described plane guide wheel mechanism (7), the first support stick (75) lower end embeds in the first mounting groove (631) and is installed on substrate (62) by nut (64), in described cambered surface guide wheel mechanism (8), the second support stick (85) lower end is embedded in the second mounting groove (632) and is installed on substrate (62) by nut (64)
The line concentration through hole (91) of described line concentration base (9), flat circle take turns (72), cambered surface circular wheel (82) is in the same plane and cambered surface circular wheel (82) is positioned at line concentration base (9) and flat circle is taken turns between (72), along 2 flat circle wheels, (72) are opposing sidles line and contact with its plane face (71) respectively for described first semicircle copper conductor (11) and the second semicircle copper conductor (12), and described first semicircle copper conductor (11) contacts along 2 cambered surface circular wheel (82) opposite sides cablings and with its cambered surface face (81) respectively with the second semicircle copper conductor (12)；
1.2 times of the interval being spaced apart described 2 curved circular wheel (82) of described 2 flat circle wheel (72)；
Described extruding machine (30), for extruding one layer of restrictive coating (3) in described round wire to (2)；
Described bosh (50), for cooling down the flexible cable from described extruding machine (30)；
Described take-up stand (40), is used for receiving and keeping described communication flexible cable；
The diameter proportion of (2) is 100:3 ~ 6 with described round wire by the interval of described 2 flat circle wheel (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980059.6A CN105761841A (en) | 2013-04-19 | 2013-04-19 | Processing device for telecommunications room power supply soft cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980059.6A CN105761841A (en) | 2013-04-19 | 2013-04-19 | Processing device for telecommunications room power supply soft cable |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310138820.2A Division CN103219092B (en) | 2013-04-19 | 2013-04-19 | Communication data flexible cable stranding device |
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| CN105761841A true CN105761841A (en) | 2016-07-13 |
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| CN201510980059.6A Pending CN105761841A (en) | 2013-04-19 | 2013-04-19 | Processing device for telecommunications room power supply soft cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105448431A (en) * | 2013-04-19 | 2016-03-30 | 江苏亨通线缆科技有限公司 | Twisting apparatus for communication power supply flexible cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448431A (en) * | 2013-04-19 | 2016-03-30 | 江苏亨通线缆科技有限公司 | Twisting apparatus for communication power supply flexible cable |
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Application publication date: 20160713 |