CN105891984A - Optical cable and mould for manufacturing specially-shaped optical fiber loose tube in optical cable - Google Patents
Optical cable and mould for manufacturing specially-shaped optical fiber loose tube in optical cable Download PDFInfo
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- CN105891984A CN105891984A CN201610483963.0A CN201610483963A CN105891984A CN 105891984 A CN105891984 A CN 105891984A CN 201610483963 A CN201610483963 A CN 201610483963A CN 105891984 A CN105891984 A CN 105891984A
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- core rod
- wall body
- loose tube
- die sleeve
- convex body
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 108
- 230000003287 optical effect Effects 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 20
- 239000004033 plastic Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000010257 thawing Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004595 color masterbatch Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the technical field of cables, in particular to an optical cable. The optical cable comprises a first cable core and a second cable core formed by a plurality of loose sleeves stranded around the first cable core, wherein a protective layer coats outside the second cable core; a sheath layer coats outside the protective layer in an extruded way; and the first cable core consists of a central reinforcing part and a plurality of common loose sleeves which are stranded around the central reinforcing part. The optical cable is characterized in that a plurality of common loose sleeves and at least one specially-shaped optical fiber loose sleeve are arranged in the second cable core, wherein the specially-shaped optical fiber loose sleeve and the common loose sleeves are provided with light-guide fibers; and the specially-shaped optical fiber loose sleeve is manufactured by a special mould and a special method. The optical cable has the following main beneficial effects: the manufacturing is convenient, the identifying is easier, the stripping is more convenient, and the construction efficiency is higher.
Description
The application is entitled: special-shaped optical fibre Loose tube and use the optical cable of this Loose tube, filing date: on 09 15th, 2014, Application No.: the divisional application of the patent of invention of 201410467631.4.
Technical field
The invention belongs to technical field of cables, especially relate to special-shaped optical fibre Loose tube, the manufacture method of this optical fiber loose tube and use the optical cable of this Loose tube and manufacture the mould of special-shaped optical fibre Loose tube in this optical cable.
Background technology
In prior art, being formed by many Loose tube are stranded in layer-stranding cable, in order to reach the effect identified, Loose tube to be generally set to different colors；According to the standard of posts and telecommunications industry, identify that chromatograph is usually: blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, dark green；And when the Loose tube quantity in twisted layer single in layer-stranding cable is more than 12, be difficult to identify, the color of repetition can only be used to identify, all make troubles so to identification and construction.288 sandwich layer stranded cables commonly used in the prior art are made up of 24 Loose tube, and internal layer is 9, and outer layer is 15；Internal layer uses color blue, orange, green, brown, grey, white, red, black, yellow；Outer layer uses color blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, dark green, blue, orange, green；Extremely difficult identification.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to disclose special-shaped optical fibre Loose tube；Further, the present invention also discloses its manufacture method；Using the optical cable of this Loose tube additionally, present invention further teaches and manufacture the mould of special-shaped optical fibre Loose tube in this optical cable, they realize by the following technical solutions.
In the embodiment 1 of the present invention, special-shaped optical fibre Loose tube, the Loose tube 1 that optical fibers includes many optical fiberss 2, envelope；It is characterized in that described Loose tube is made up of Part I 11 and Part II 12；Loose tube is to be formed by the bonding of Part I and Part II or Part I in Loose tube is integrally formed with Part II；The inside and out of Loose tube is all the face of cylinder.
In the embodiment 2 of the present invention, special-shaped optical fibre Loose tube, the Loose tube 1 that optical fibers includes many optical fiberss 2, envelope；It is characterized in that described Loose tube is made up of Part I 11, Part II 12, Part III 13 and Part IV 14；Loose tube is to be formed or Part I, Part II, Part III and Part IV in Loose tube is integrally formed by Part I, Part II, Part III, Part IV head and the tail are the most bonding；The inside and out of Loose tube is all the face of cylinder.
Further, in the present invention, special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；It is characterized in that described Loose tube is made up of some；Loose tube is to be formed or some in Loose tube is integrally formed by some head and the tail are the most bonding；The inside and out of Loose tube is all the face of cylinder.
In the embodiment 3 of the present invention; optical cable; it includes center reinforcement 3, around the special-shaped optical fibre Loose tube 1 described in the stranded many embodiments 1 of center reinforcement, special-shaped optical fibre Loose tube is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5；There are inside special-shaped optical fibre Loose tube many optical fiberss 2.
Optical cable described above, it is characterised in that in described many special-shaped optical fibre Loose tube at least one be filled rope replaced.
In the embodiment 4 of the present invention; optical cable; it includes the first cable core, the second cable core formed around the many Loose tube that the first cable core is stranded; second cable core is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5, and the first cable core is by center reinforcement 3, constitute around the many common Loose tube that center reinforcement is stranded；It is characterized in that the second cable core has the special-shaped optical fibre Loose tube 1 described in many common Loose tube 6 and at least embodiment 1, special-shaped optical fibre Loose tube and common Loose tube all have optical fibers 2.
In the embodiment 5 of the present invention; optical cable; the intertwist body that it includes center reinforcement 3, formed around the special-shaped optical fibre Loose tube 1 described in the stranded many embodiments 1 of center reinforcement and two power transmission lines 9, special-shaped optical fibre Loose tube and power transmission line is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5；There are inside special-shaped optical fibre Loose tube many optical fiberss 2；Described power transmission line is by conductor 91 and envelopes the insulating barrier 92 of conductor and constitutes.
In the embodiment 6 of the present invention, special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body 73 and the second convex body 74 protruding from core rod wall body, first convex body is positioned at above upper mold core wall body 71, second convex body is positioned at below lower mold core wall body 72, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face 730 of the first convex body is positioned at the front end face 70 of core rod wall body, after the front end face 740 of the second convex body is positioned at the front end face 70 of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face 80 of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body.
A kind of optical cable; it includes the first cable core, the second cable core formed around the many Loose tube that the first cable core is stranded; second cable core is coated with protective layer, the outer extrusion molding of protective layer is coated with restrictive coating, and the first cable core is by center reinforcement, constitute around the many common Loose tube that center reinforcement is stranded；It is characterized in that the second cable core has many common Loose tube and at least special-shaped optical fibre Loose tube, special-shaped optical fibre Loose tube and common Loose tube all have optical fibers；Described special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；Described Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；Part I has different colors from Part II；Described special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
A kind of optical cable, it includes center reinforcement, the intertwist body that formed around the stranded many special-shaped optical fibre Loose tube of center reinforcement and two power transmission lines, special-shaped optical fibre Loose tube and power transmission line is coated with protective layer, the outer extrusion molding of protective layer is coated with restrictive coating；There are inside special-shaped optical fibre Loose tube many optical fiberss；Described power transmission line is by conductor and envelopes the insulating barrier of conductor and constitutes；Described special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；Described Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；Part I has different colors from Part II；Described special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
A kind of mould manufacturing the special-shaped optical fibre Loose tube used in optical cable, it includes core rod and die sleeve, is formed with gap outside die sleeve is arranged on core rod and between core rod and die sleeve；It is characterized in that, described core rod has core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；Described die sleeve inner chamber has inner chamber, inner chamber can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
Special-shaped optical fibre Loose tube in the present invention, the color of every Loose tube is all two or more, and therefore, Loose tube is provided with more recognition method, makes construction and identifies more convenient, meanwhile, makes production more convenient；In the present invention, the some of Loose tube be glued together time, Loose tube stripping can be made more convenient.
Therefore, the present invention has a following main beneficial effect: easy to make, more easy to identify, stripping is more convenient；Efficiency of construction is higher.
Accompanying drawing explanation
Fig. 1 is the perspective view after one section of stripping of the first embodiment of special-shaped optical fibre Loose tube of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram after Fig. 1 amplifies.
Fig. 3 is the perspective view after one section of stripping of the second embodiment of special-shaped optical fibre Loose tube of the present invention.
Fig. 4 is the cross-sectional structure schematic diagram after Fig. 3 amplifies.
Fig. 5 is the perspective view after the present invention uses one section of stripping of the first embodiment of the optical cable of this Loose tube.
Fig. 6 is the cross-sectional structure schematic diagram after Fig. 5 amplifies.
Fig. 7 is the perspective view after the present invention uses one section of stripping of the second embodiment of the optical cable of this Loose tube.
Fig. 8 is the cross-sectional structure schematic diagram after Fig. 7 amplifies.
Fig. 9 is the cross-sectional structure schematic diagram that the present invention uses the third embodiment of the optical cable of this Loose tube.
Figure 10 makes the core rod that the used parting face structural representation along axis by special-shaped optical fibre Loose tube of the present invention.
Figure 11 makes, by special-shaped optical fibre Loose tube of the present invention, the core rod that used and combines with die sleeve the parting face structural representation of tailing edge axis.
Detailed description of the invention
Embodiment
1
Ask for an interview Fig. 1 and Fig. 2, special-shaped optical fibre Loose tube, the Loose tube 1 that optical fibers includes 12 optical fiberss 2, envelope；It is characterized in that described Loose tube is made up of Part I 11 and Part II 12；Loose tube is to be formed by the bonding of Part I and Part II or Part I in Loose tube is integrally formed with Part II；The inside and out of Loose tube is all the face of cylinder.
Part I described above has different colors from Part II.
Embodiment
2
Ask for an interview Fig. 3 and Fig. 4, special-shaped optical fibre Loose tube, the Loose tube 1 that optical fibers includes 12 optical fiberss 2, envelope；It is characterized in that described Loose tube is made up of Part I 11, Part II 12, Part III 13 and Part IV 14；Loose tube is to be formed or Part I, Part II, Part III and Part IV in Loose tube is integrally formed by Part I, Part II, Part III, Part IV head and the tail are the most bonding；The inside and out of Loose tube is all the face of cylinder.
Further, in this embodiment, special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；It is characterized in that described Loose tube is made up of some other；Loose tube is to be formed or some in Loose tube is integrally formed by some head and the tail are the most bonding；The inside and out of Loose tube is all the face of cylinder；Some at least has two kinds of different colors.
Part I described above, Part II, Part III, Part IV have two or more different color.
Special-shaped optical fibre Loose tube described in above-mentioned embodiment 1 and embodiment 2, described optical fibers can be other many.
Embodiment
3
Ask for an interview Fig. 5 and Fig. 6; and with reference to Fig. 1 and Fig. 2; optical cable, it includes center reinforcement 3, around the special-shaped optical fibre Loose tube 1 described in the stranded many embodiments 1 of center reinforcement, and special-shaped optical fibre Loose tube is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5；There are inside special-shaped optical fibre Loose tube many optical fiberss 2；Described Loose tube is made up of Part I 11 and Part II 12；Loose tube is to be formed by the bonding of Part I and Part II or Part I in Loose tube is integrally formed with Part II；The inside and out of Loose tube is all the face of cylinder.
Optical cable described above, it is characterised in that in described many special-shaped optical fibre Loose tube at least one be filled rope replaced.
Embodiment
4
Ask for an interview Fig. 7 and Fig. 8; and with reference to Fig. 1 and Fig. 2; optical cable; it includes the first cable core, the second cable core formed around 15 Loose tube that the first cable core is stranded; second cable core is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5, and the first cable core is by center reinforcement 3, constitute around 9 common Loose tube that center reinforcement is stranded；It is characterized in that the second cable core has the special-shaped optical fibre Loose tube 1 described in 12 common Loose tube 6 and 3 embodiments 1, special-shaped optical fibre Loose tube and common Loose tube all have optical fibers 2.
Optical cable described above, it is characterised in that the described Loose tube stranded around the first cable core can be other many；Described common Loose tube quantity can be other many outside 12, and described special-shaped optical fibre Loose tube can be also other many beyond 3.
Embodiment
5
Ask for an interview Fig. 9; and with reference to Fig. 1 and Fig. 2; optical cable; the intertwist body that it includes center reinforcement 3, formed around the special-shaped optical fibre Loose tube 1 described in stranded 4 embodiments 1 of center reinforcement and two power transmission lines 9, special-shaped optical fibre Loose tube and power transmission line is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5；There are inside special-shaped optical fibre Loose tube many optical fiberss 2；Described power transmission line is by conductor 91 and envelopes the insulating barrier 92 of conductor and constitutes.
Optical cable described above, it is characterised in that described special-shaped optical fibre Loose tube can be also other many.
Embodiment
6
Ask for an interview Figure 10 and Figure 11, special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body 73 and the second convex body 74 protruding from core rod wall body, first convex body is positioned at above upper mold core wall body 71, second convex body is positioned at below lower mold core wall body 72, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face 730 of the first convex body is positioned at the front end face 70 of core rod wall body, after the front end face 740 of the second convex body is positioned at the front end face 70 of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face 80 of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body.
Certainly, the special-shaped optical fibre Loose tube described in embodiment 2 of the present invention, under the enlightenment of embodiment 6, place technical field personnel need not move through performing creative labour, can obtain corresponding manufacture method completely.
When manufacturing special-shaped optical fibre Loose tube, due to the first convex body, the chamber that core rod and die sleeve are formed is divided into two independent spaces by the second convex body, and be integrated in the die sleeve chamber, front end in die sleeve chamber, therefore, in the front end in die sleeve chamber, bi-material is converged, shape all-in-one-piece special-shaped optical fibre Loose tube, both adhesions are higher, the most seamless, it is injected separately into the raw material of different colours along A and the B direction of arrow from the gap of Figure 11, can be provided by two injection machines, can also shunt after being provided by single injection machine and be formed, the color masterbatch material injecting different colours before converging mixes, it is the formation of the phenomenon in same Loose tube with different colours；It is, of course, also possible to form multiple color, so it is more easy to distinguish.
Special-shaped optical fibre Loose tube in the present invention, the color of every Loose tube is all two or more, and therefore, Loose tube is provided with more recognition method, makes construction and identifies more convenient, meanwhile, makes production more convenient；In the present invention, the some of Loose tube be glued together time, Loose tube stripping can be made more convenient.
Therefore, the present invention has a following main beneficial effect: easy to make, more easy to identify, stripping is more convenient；Efficiency of construction is higher.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be implemented to use by other various forms, and they also fall within protection scope of the present invention.
Claims (3)
1. an optical cable; it includes the first cable core, the second cable core formed around the many Loose tube that the first cable core is stranded; second cable core is coated with protective layer, the outer extrusion molding of protective layer is coated with restrictive coating, and the first cable core is by center reinforcement, constitute around the many common Loose tube that center reinforcement is stranded；It is characterized in that the second cable core has many common Loose tube and at least special-shaped optical fibre Loose tube, special-shaped optical fibre Loose tube and common Loose tube all have optical fibers；Described special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；Described Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；Part I has different colors from Part II；Described special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
2. an optical cable, it includes center reinforcement, the intertwist body that formed around the stranded many special-shaped optical fibre Loose tube of center reinforcement and two power transmission lines, special-shaped optical fibre Loose tube and power transmission line is coated with protective layer, the outer extrusion molding of protective layer is coated with restrictive coating；There are inside special-shaped optical fibre Loose tube many optical fiberss；Described power transmission line is by conductor and envelopes the insulating barrier of conductor and constitutes；Described special-shaped optical fibre Loose tube, the Loose tube that optical fibers includes many optical fiberss, envelope；Described Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；Part I has different colors from Part II；Described special-shaped optical fibre Loose tube, it is characterised in that it uses following methods to be made:
The first step: multiple fibre-optic dish tools that are wound with are arranged on fiber reel are put on fine arbor, makes optical fibers be passed through the core rod hole of extruder head；
Second step: heating extruding machine also makes plastic melt, and make the plastics of thawing pass through in the gap of core rod and die sleeve formation；
3rd step: draw optical fibers and cross the plastics of extrusion head, makes them enter bosh together and constantly draw formation special-shaped optical fibre Loose tube, and described special-shaped optical fibre Loose tube is made up of Part I and Part II；Part I in Loose tube and Part II are integrally formed；The inside and out of Loose tube is all the face of cylinder；
Core rod described in above-mentioned second step, there is core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
3. manufacturing a mould for the special-shaped optical fibre Loose tube used in optical cable, it includes core rod and die sleeve, is formed with gap outside die sleeve is arranged on core rod and between core rod and die sleeve；It is characterized in that, described core rod has core rod wall body, there is on core rod wall body the first convex body and the second convex body protruding from core rod wall body, first convex body is positioned at above upper mold core wall body, second convex body is positioned at below lower mold core wall body, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and be truncated cone between the rear end part of the fore-end of core rod wall body and core rod wall body, after the front end face of the first convex body is positioned at the front end face of core rod wall body, after the front end face of the second convex body is positioned at the front end face of core rod wall body；Described die sleeve inner chamber has inner chamber, inner chamber can accommodate core rod wall body, when installment state: in the wall body of the inner chamber that a part for the first convex body is embedded in die sleeve, in the wall body of the inner chamber that a part for the second convex body is embedded in die sleeve, the front end face of core rod wall body is positioned at before the front end face of die sleeve, core rod is in addition to the first convex body, the second convex body contact with die sleeve, the other parts of core rod do not contact with die sleeve, and the chamber that core rod and die sleeve are formed is divided into two independent spaces by the first convex body, the second convex body；And be integrated in the die sleeve chamber, front end in die sleeve chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610483963.0A CN105891984B (en) | 2014-09-15 | 2014-09-15 | A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467631.4A CN104181660B (en) | 2014-09-15 | 2014-09-15 | Manufacturing method of special-shaped optical fiber loose tube |
| CN201610483963.0A CN105891984B (en) | 2014-09-15 | 2014-09-15 | A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable |
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| CN201410467631.4A Division CN104181660B (en) | 2014-09-15 | 2014-09-15 | Manufacturing method of special-shaped optical fiber loose tube |
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| CN201410467631.4A Active CN104181660B (en) | 2014-09-15 | 2014-09-15 | Manufacturing method of special-shaped optical fiber loose tube |
| CN201610483606.4A Active CN105866909B (en) | 2014-09-15 | 2014-09-15 | A kind of optical cable using special-shaped optical fibre Loose tube |
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| CN113054601A (en) * | 2021-03-16 | 2021-06-29 | 赣州奥鑫新型建材有限公司 | Combined cable pipe socket interface die |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105607204A (en) * | 2015-03-16 | 2016-05-25 | 沈群华 | Optical cable with special-shaped filling ropes and manufacturing method thereof |
| CN108761676B (en) * | 2018-04-13 | 2020-02-28 | 扬州市兴龙塑料有限公司 | Porous optical fiber communication tube |
| CN117761854B (en) * | 2024-02-19 | 2024-04-23 | 常熟白莲光电科技有限公司 | Optical fiber ribbon cable with special-shaped loose sleeve part and manufacturing method thereof |
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| JP2005300835A (en) * | 2004-04-09 | 2005-10-27 | Fujikura Ltd | Apparatus and method for coloring optical fiber |
| CN101706604A (en) * | 2009-11-09 | 2010-05-12 | 王春鸿 | Easily branched cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105866909A (en) | 2016-08-17 |
| CN105866909B (en) | 2019-01-29 |
| CN105891984B (en) | 2018-12-28 |
| CN104181660B (en) | 2017-01-18 |
| CN104181660A (en) | 2014-12-03 |
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Effective date of registration: 20210325 Address after: 223600 Shuyang Economic Development Zone, Suqian City, Jiangsu Province Patentee after: JIANGSU WANDELI CABLE Co.,Ltd. Address before: 318050 No. 166 Xialiqiao West Road, Luqiao Street, Luqiao District, Taizhou City, Zhejiang Province Patentee before: Lin Zhengjun |