CN105093457A - Anti-rodent and anti-pecking layer stranding optical cable and manufacturing method thereof - Google Patents

Anti-rodent and anti-pecking layer stranding optical cable and manufacturing method thereof Download PDF

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Publication number
CN105093457A
CN105093457A CN201510596264.2A CN201510596264A CN105093457A CN 105093457 A CN105093457 A CN 105093457A CN 201510596264 A CN201510596264 A CN 201510596264A CN 105093457 A CN105093457 A CN 105093457A
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CN
China
Prior art keywords
layer
oversheath
cable core
cable
stranding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510596264.2A
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Chinese (zh)
Inventor
阮云芳
何军
高莹
周珍福
陈锋
熊壮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangtze Optical Fibre and Cable Co Ltd
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Yangtze Optical Fibre and Cable Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangtze Optical Fibre and Cable Co Ltd filed Critical Yangtze Optical Fibre and Cable Co Ltd
Priority to CN201510596264.2A priority Critical patent/CN105093457A/en
Publication of CN105093457A publication Critical patent/CN105093457A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • G02B6/4432Protective covering with fibre reinforcements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention relates to an anti-rodent and anti-pecking layer stranding optical cable and a manufacturing method thereof. The anti-rodent and anti-pecking layer stranding optical cable comprises a layer stranding cable core and an external sheath. The anti-rodent and anti-pecking layer stranding optical cable is characterized in that the layer stranding cable core is externally wrapped by an armor layer which is externally wrapped by the external sheath. The external sheath comprises an external sheath internal layer and an external sheath external layer. The external sheath internal layer is a chemical rat-proof layer. The external sheath external layer is a hard high-density polyethylene layer. The anti-rodent and anti-pecking layer stranding optical cable is reasonable and simple in structural arrangement, great in flexibility and low in manufacturing cost so that the anti-rodent and anti-pecking layer stranding optical cable is anti-rodent and anti-pecking, high in protection performance and convenient to manufacture without pollution to working environment The double-cladding external sheath wraps the internal layer with rodenticide inside, and the internal and external layers are formed simultaneously in processing by adopting a co-extrusion formation mode so that volatilization of the rodenticide in the process of processing can be isolated, and environmental pollution in the process of processing can be avoided.

Description

One is anti-bite prevents pecking layer-stranding cable and manufacture method thereof
Technical field
The present invention relates to a kind of mouse bite preventing, the anti-bite anti-of anti-unfirmly closing pecks layer-stranding cable and manufacture method thereof.
Background technology
Prevent that the optical cable pecked is exactly prevent the optical cable after laying from use preventing various muroid and stinging of some birds birds from pecking invasion and attack for anti-bite.Wherein, ground laying optical cable there will be and bitten and destroyed situation by mouse, and some aerial optical cables, the birds of woodpecker class can sting infringement to pecking of optical cable.The mode that optical cable protection against rodents bites in the prior art is divided into physics protection against rodents and chemical protection against rodents two class.Physics protection against rodents is mostly in oversheath, arrange coated double-deck steel band or steel wire, not only material and cost of manufacture expensive, optical cables heavy, and cable is more stiff, lays and safeguards inconvenience.Chemistry protection against rodents refers to that in the oversheath of optical cable, to add expelling mouse agent pungent element by a certain percentage reaches the object that protection against rodents bites.Experiment shows that mouse is more responsive to pungent element, it is effective expelling mouse agent of relatively generally acknowledging in the industry, but because pungent element directly adds in cable jacket, in batch mixing and extrusion, a large amount of penetrating odor can be produced, pollute surrounding air, have a strong impact on producers and normally work, give to make to produce and bring very large inconvenience.
Summary of the invention
Technical matters to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of and anti-bitely anti-ly pecks layer-stranding cable and manufacture method thereof, this cable configuration arranges rationally simple, flexible, cost of manufacture is low, can not only the anti-unfirmly closing of mouse bite preventing, and be convenient to make, do not pollute working environment.
The present invention for the optical cable technology scheme solving the problem adopted is: include layer-twisted type cable core and oversheath, it is characterized in that being coated with armor at layer-twisted type cable core, armor outer cladding oversheath, described oversheath comprises oversheath internal layer and oversheath is outer, described oversheath internal layer is chemical protection against rodents layer, and described oversheath skin is hard high-density polyethylene layer.
By such scheme, described hard high-density polyethylene layer is partly or entirely red.
By such scheme, the skin hardness of described hard high-density polyethylene layer is more than or equal to Shore hardness 60 degree.
By such scheme, the outer field monolateral thickness of described oversheath is 0.1 ~ 0.5mm.
By such scheme, when described hard high-density polyethylene layer is part redness, RED sector longitudinally distributes, in straight banded or spiral shape.
By such scheme, described chemical protection against rodents layer is the polythene material layer containing expelling mouse agent, and described expelling mouse agent is pungent element or modification pungent element, and addition is 0.5 ~ 5% by weight.
By such scheme, described armor is vertical Baogang band.
By such scheme, described layer-twisted type cable core comprises central reinforce member and is stranded in the Loose tube around central reinforce member, is set with optical fiber in Loose tube, filling greasy for preventing water in cable core, or is wound around water blocking yarn outward at cable core.
The manufacture method technical scheme of optical cable of the present invention is:
First make layer-twisted type cable core;
Clad metal armor: by layer-twisted type cable core at the uniform velocity through metal armouring shaping mould, form metal armor layers;
Extrude oversheath: by the cable core of clad metal armor at the uniform velocity through oversheath mould, outside described metal armor layers, oversheath is extruded with outer jacket extruding machine, it is characterized in that described oversheath mould is the Double-head mould being provided with spreader, the cable core of clad metal armor, through Double-head mould, extrudes oversheath internal layer containing expelling mouse agent and oversheath skin outward at cable core armor simultaneously.
By such scheme, described Double-head comprises the extruder that extrudes containing expelling mouse agent oversheath inner layer material and extrudes the extruder of coated oversheath cladding material and finally shaping co-extruding machine head; The extruder feed opening extruded containing expelling mouse agent oversheath inner layer material is provided with batch mixing screw rod and material tripe, ensures that Ratproof agent mixes with protective cover material; Described oversheath internal layer and the outer field material of oversheath are extruded jointly from same die orifice, inside and outside layer tight bond, outwards to be volatilized diffusion by the outer field coated internal layer expelling mouse agent that cuts off of oversheath.
The invention has the beneficial effects as follows: 1, adopt double clad oversheath and interior structure of establishing armor, physics protection against rodents is combined with chemical protection against rodents mode, along with progressively infiltration and the diffusion of internal layer expelling mouse agent outer layers, in addition outer field hard slippery, can make optical cable effectively prevent the destruction that bites of murine; 2, adopt the effect of hard slippery external sheath layer red color layer in addition, effectively can threaten the stop of birds birds on cable and sting and peck invasion and attack, birds are more difficult when pecking optical cable finds center of effort, even if find center of effort, the hardness of optical cable also can prevent from being pecked stinging; 3, in the internal layer containing expelling mouse agent is coated on by double clad oversheath, add and adopt man-hour coextrusion mold mode that ectonexine is formed simultaneously, cut off the volatilization of expelling mouse agent in process, avoid the environmental pollution in process; 4, vibrational power flow advantages of simple of the present invention, barrier propterty is strong, and cost of manufacture is low, and optical cable is soft, lightweight, is easy to use and lay.
Accompanying drawing explanation
Fig. 1 is the radial structure sectional view of the present invention's optical cable embodiment.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
The structure of layer-stranding cable as shown in Figure 1, include layer-twisted type cable core, described layer-twisted type cable core comprises central reinforce member 4 and is stranded in the Loose tube 7 around central reinforce member, is set with optical fiber 5 in Loose tube, and filling greasy for preventing water 6, be wound around water blocking yarn outward at cable core.Be coated with armor 3 at layer-twisted type cable core, described armor is vertical Baogang band.Armor outer cladding oversheath, described oversheath comprises oversheath internal layer 2 and oversheath skin 1, the inside and outside layer of oversheath is combined closely, described oversheath internal layer is chemical protection against rodents layer, for the polythene material layer containing expelling mouse agent, described expelling mouse agent is pungent element or modification pungent element, and addition is 0.5 ~ 5% by weight.Described oversheath skin is hard high-density polyethylene layer, and the skin hardness of described hard high-density polyethylene layer is Shore hardness 65 degree, and the outer field monolateral thickness of oversheath is 0., 3mm, and hard high-density polyethylene layer is all red.
The production method of optical cable of the present invention is as follows:
First make layer-twisted type cable core; By layer-twisted type cable core at the uniform velocity through metal armouring shaping mould, form metal armor layers;
By the cable core of clad metal armor at the uniform velocity through oversheath mould, outside described metal armor layers, oversheath is extruded with outer jacket extruding machine, described oversheath mould is the Double-head mould being provided with spreader, the cable core of clad metal armor is through Double-head mould, extrude oversheath internal layer containing expelling mouse agent outward and oversheath is outer at cable core armor, oversheath skin is hard high-density polyethylene layer simultaneously.Described Double-head comprises the extruder that extrudes containing expelling mouse agent sheath inner layer material and extrudes the extruder of coated cladding material and finally shaping co-extruding machine head; Described sheath internal layer and outer field material are extruded jointly from same die orifice, inside and outside layer tight bond, outwards to be volatilized diffusion by the outer field coated internal layer expelling mouse agent that cuts off of sheath; Described expelling mouse agent is in the material extrusion process of extruder, to be mixed in protective cover material heating and melting together in proportion again, described batch mixing process is below the hopper of protective cover material extruder, expelling mouse agent implanter with screw conveyer is laterally installed, by the mixed volume of the regulable control expelling mouse agent of implanter screw speed above feed opening.

Claims (10)

1. anti-bitely anti-peck layer-stranding cable for one kind, include layer-twisted type cable core and oversheath, it is characterized in that being coated with armor at layer-twisted type cable core, armor outer cladding oversheath, described oversheath comprises oversheath internal layer and oversheath is outer, described oversheath internal layer is chemical protection against rodents layer, and described oversheath skin is hard high-density polyethylene layer.
2. anti-bitely anti-peck layer-stranding cable by according to claim 1, it is characterized in that described hard high-density polyethylene layer partly or entirely for red.
3. peck layer-stranding cable by anti-bite anti-described in claim 1 or 2, it is characterized in that the skin hardness of described hard high-density polyethylene layer is more than or equal to Shore hardness 60 degree.
4. peck layer-stranding cable by anti-bite anti-described in claim 1 or 2, it is characterized in that the outer field monolateral thickness of described oversheath is 0.1 ~ 0.5mm.
5. anti-bitely anti-peck layer-stranding cable by according to claim 2, it is characterized in that described hard high-density polyethylene layer for part red time, RED sector longitudinally distributes, in straight banded or spiral shape.
6. peck layer-stranding cable by anti-bite anti-described in claim 1 or 2, it is characterized in that described chemical protection against rodents layer is the polythene material layer containing expelling mouse agent, described expelling mouse agent is that pungent element or modification pungent are plain, and addition is 0.5 ~ 5% by weight.
7. peck layer-stranding cable by anti-bite anti-described in claim 1 or 2, it is characterized in that described armor is for vertical Baogang band.
8. peck layer-stranding cable by anti-bite anti-described in claim 1 or 2, it is characterized in that described layer-twisted type cable core comprises central reinforce member and is stranded in the Loose tube around central reinforce member, be set with optical fiber in Loose tube, filling greasy for preventing water in cable core, or be wound around water blocking yarn outward at cable core.
9. an arbitrary anti-bite anti-manufacture method of pecking layer-stranding cable in claim 1-8,
First make layer-twisted type cable core;
Clad metal armor: by layer-twisted type cable core at the uniform velocity through metal armouring shaping mould, form metal armor layers;
Extrude oversheath: by the cable core of clad metal armor at the uniform velocity through oversheath mould, outside described metal armor layers, oversheath is extruded with outer jacket extruding machine, it is characterized in that described oversheath mould is the Double-head mould being provided with spreader, the cable core of clad metal armor, through Double-head mould, extrudes oversheath internal layer containing expelling mouse agent and oversheath skin outward at cable core armor simultaneously.
10., by anti-bite anti-manufacture method of pecking layer-stranding cable according to claim 9, it is characterized in that described Double-head comprises the extruder that extrudes containing expelling mouse agent sheath inner layer material and extrudes the extruder of coated cladding material and finally shaping co-extruding machine head; Described sheath internal layer and outer field material are extruded jointly from same die orifice, inside and outside layer tight bond, outwards to be volatilized diffusion by the outer field coated internal layer expelling mouse agent that cuts off of sheath; Described expelling mouse agent is in the material extrusion process of extruder, to be mixed in protective cover material heating and melting together in proportion again, described batch mixing process is below the hopper of protective cover material extruder, expelling mouse agent implanter with screw conveyer is laterally installed, by the mixed volume of the regulable control expelling mouse agent of implanter screw speed above feed opening.
CN201510596264.2A 2015-09-18 2015-09-18 Anti-rodent and anti-pecking layer stranding optical cable and manufacturing method thereof Pending CN105093457A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105976938A (en) * 2016-06-15 2016-09-28 镇江市中能机械设备有限公司 Electric wire cable for long-distance fiber-optic communication
CN107390333A (en) * 2017-08-01 2017-11-24 长飞光纤光缆股份有限公司 Self-bearing type anti-rat-bite optical cable and its manufacture method
CN107479154A (en) * 2017-08-01 2017-12-15 长飞光纤光缆股份有限公司 A kind of self-bearing type anti-rat-bite optical cable and its manufacture method
CN107608042A (en) * 2017-09-06 2018-01-19 长飞光纤光缆股份有限公司 A kind of absolutely dry self-bearing type anti-rat-bite optical cable
CN109116497A (en) * 2018-10-24 2019-01-01 江苏亨通光电股份有限公司 Aerial optical cable
WO2019013976A1 (en) 2017-07-12 2019-01-17 Dow Global Technologies Llc Pest-resistant cable jacketing
CN112904514A (en) * 2021-03-25 2021-06-04 成都亨通光通信有限公司 Rat-proof optical cable and manufacturing method thereof
CN113985550A (en) * 2021-11-19 2022-01-28 天津立孚光电科技股份有限公司 Layer-stranded rat-bite-proof optical cable
CN115755304A (en) * 2022-11-30 2023-03-07 江苏巨量光电科技有限公司 Anti-gnawing layer-stranded outdoor optical cable for communication and processing method thereof

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JPS58100104A (en) * 1981-12-10 1983-06-14 Nippon Telegr & Teleph Corp <Ntt> Submarine optical fiber cable transmission line
CN101458977A (en) * 2008-11-17 2009-06-17 江苏永鼎股份有限公司 Fireproof, anticorrosive and high-safety cable
CN201289536Y (en) * 2008-08-31 2009-08-12 成都亨通光通信有限公司 Novel optical cable with double-layer oversheath
CN202362506U (en) * 2011-10-18 2012-08-01 长飞光纤光缆有限公司 All-medium chemical rodent-resistant optical cable
CN103176251A (en) * 2013-03-14 2013-06-26 东捷光电科技(苏州)有限公司 Cable for armor base station
CN104155734A (en) * 2014-08-11 2014-11-19 苏州金纬机械制造有限公司 Optical cable communication tube and production mold thereof
CN104656216A (en) * 2015-03-10 2015-05-27 沈群华 Bird pecking prevented optical cable and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100104A (en) * 1981-12-10 1983-06-14 Nippon Telegr & Teleph Corp <Ntt> Submarine optical fiber cable transmission line
CN201289536Y (en) * 2008-08-31 2009-08-12 成都亨通光通信有限公司 Novel optical cable with double-layer oversheath
CN101458977A (en) * 2008-11-17 2009-06-17 江苏永鼎股份有限公司 Fireproof, anticorrosive and high-safety cable
CN202362506U (en) * 2011-10-18 2012-08-01 长飞光纤光缆有限公司 All-medium chemical rodent-resistant optical cable
CN103176251A (en) * 2013-03-14 2013-06-26 东捷光电科技(苏州)有限公司 Cable for armor base station
CN104155734A (en) * 2014-08-11 2014-11-19 苏州金纬机械制造有限公司 Optical cable communication tube and production mold thereof
CN104656216A (en) * 2015-03-10 2015-05-27 沈群华 Bird pecking prevented optical cable and manufacturing method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105976938A (en) * 2016-06-15 2016-09-28 镇江市中能机械设备有限公司 Electric wire cable for long-distance fiber-optic communication
WO2019013976A1 (en) 2017-07-12 2019-01-17 Dow Global Technologies Llc Pest-resistant cable jacketing
CN107390333A (en) * 2017-08-01 2017-11-24 长飞光纤光缆股份有限公司 Self-bearing type anti-rat-bite optical cable and its manufacture method
CN107479154A (en) * 2017-08-01 2017-12-15 长飞光纤光缆股份有限公司 A kind of self-bearing type anti-rat-bite optical cable and its manufacture method
CN107608042A (en) * 2017-09-06 2018-01-19 长飞光纤光缆股份有限公司 A kind of absolutely dry self-bearing type anti-rat-bite optical cable
CN109116497A (en) * 2018-10-24 2019-01-01 江苏亨通光电股份有限公司 Aerial optical cable
CN112904514A (en) * 2021-03-25 2021-06-04 成都亨通光通信有限公司 Rat-proof optical cable and manufacturing method thereof
CN113985550A (en) * 2021-11-19 2022-01-28 天津立孚光电科技股份有限公司 Layer-stranded rat-bite-proof optical cable
CN113985550B (en) * 2021-11-19 2023-12-22 天津立孚光电科技股份有限公司 Layer-stranded rat-proof optical cable
CN115755304A (en) * 2022-11-30 2023-03-07 江苏巨量光电科技有限公司 Anti-gnawing layer-stranded outdoor optical cable for communication and processing method thereof
CN115755304B (en) * 2022-11-30 2023-09-22 江苏巨量光电科技有限公司 Anti-biting layer-stranding outdoor optical cable for communication and processing method thereof

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