CN105589155A - FT-dry optical cable, production method thereof and manufacturing device of buffer tuber in optical cable - Google Patents
FT-dry optical cable, production method thereof and manufacturing device of buffer tuber in optical cable Download PDFInfo
- Publication number
- CN105589155A CN105589155A CN201610135289.7A CN201610135289A CN105589155A CN 105589155 A CN105589155 A CN 105589155A CN 201610135289 A CN201610135289 A CN 201610135289A CN 105589155 A CN105589155 A CN 105589155A
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- China
- Prior art keywords
- optical cable
- loose sleeve
- full
- sleeve pipe
- dry
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- 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.)
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Classifications
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- 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
- G02B6/4486—Protective covering
-
- 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
Abstract
The invention discloses an FT-dry optical cable, a production method thereof and a manufacturing device of a buffer tuber in the optical cable. The production method comprises the steps of manufacturing the buffer tubers, intertwisting a central reinforcing member with a plurality of buffer tubers for forming a cable core, and packaging a water blocking tape on the outside surface of the cable core for forming the FT-dry optical cable, wherein the step of manufacturing the buffer tubers comprises the procedures of penetrating a mold chamber of an extruding machine which is used for extruding empty tubers by two thin steel wires so that the two thin steel wires penetrate the symmetrical sidewalls of each empty tuber; making an optical fiber and a water blocking yarn absorb talcum powder and then penetrating the empty tuber; and filling dry air into the empty tuber for forming the buffer tuber. The FT-dry optical cable has high tensile strength. Because of existence of the thin steel wire, the tensile strength of the buffer tuber can be greatly improved. The FT-dry optical cable is suitable for an adverse ambient temperature and has stable process performance.
Description
Technical field:
The present invention relates to the manufacturing installation of loose sleeve pipe in the production method of a kind of Full-dry optical cable and optical cable and optical cable.
Background technology:
Conventional Full-dry optical cable production equipment involves great expense, controlling of production process difficulty, and remaining long poor stability, cannot adapt to the region that extreme environment and variations in temperature are larger.
Therefore, the necessary deficiency of prior art being improved to solve prior art.
Summary of the invention:
The invention provides the manufacturing installation of loose sleeve pipe in the production method of a kind of anti-contraction, high-intensity Full-dry optical cable and optical cable and optical cable.
The technical solution adopted in the present invention has: a kind of production method of Full-dry optical cable, comprise: the making step of loose sleeve pipe, comprise and central reinforce member and some described loose sleeve pipes are carried out to the cable core making step of stranded formation cable core and be included in the making step of cable core outer surface parcel waterstop and PE restrictive coating formation Full-dry optical cable, the making step of described loose sleeve pipe comprises: penetrate thin steel wire extrusion molding empty set pipe, penetrate at least two thin steel wires at the die cavity of the extruding machine for extrusion molding empty set pipe, this thin steel wire is distributed in the empty set tube wall of extrusion moulding;
Optical fiber penetrates empty set pipe, after optical fiber and water blocking yarn absorption talcum powder, penetrates in described empty set pipe;
Be blown into gas, to being blown into gas in described empty set pipe with dry optical fiber and finely tuning the pipe diameter size of empty set pipe, form loose sleeve pipe.
Further, described thin steel wire is provided with two, and symmetry is through in the tube wall of loose sleeve pipe.
Further, described dry gas is nitrogen.
The invention provides a kind of Full-dry optical cable, comprise central reinforce member, waterstop, PE sheath and loose sleeve pipe, described central reinforce member and some loose sleeve twisteds merge formation cable core, described PE sheath and waterstop are wrapped in the outer surface of cable core successively, described loose sleeve pipe comprises empty set pipe, optical fiber, water blocking yarn and thin steel wire, described in two, thin steel wire is arranged on the sidewall of empty set pipe, and optical fiber and water blocking yarn are arranged in empty set pipe.
Further, described thin steel wire is provided with two, and symmetry is through in the tube wall of loose sleeve pipe.
For ease of producing loose sleeve pipe, the invention provides the manufacturing installation of loose sleeve pipe in a kind of Full-dry optical cable, comprise external mold, fibre-optic catheter, seal cover, talcum powder case, be provided with the internal mold of through hole and be provided with the gas conduit of inflation inlet, described internal mold is located in external mold, and be formed with die cavity between the two, one end and the internal mold of gas conduit are tightly connected, and the through hole of gas conduit and internal mold connects, the other end is connected with seal cap sealing, fibre-optic catheter is located in gas conduit, and one end is passed seal cover and is connected with talcum powder case.
Further, be respectively equipped with the first metal cable-through hole and the second metal cable-through hole on described internal mold and seal cover, described the first metal cable-through hole connects with die cavity and through hole respectively.
Further, on described fibre-optic catheter, be connected with guide pin, this guide pin passes the through hole of internal mold and stretches out outside internal mold.
Further, in described gas conduit, be provided with air splitter.
Further, described air splitter has a circular body, and the circumferencial direction of this body is evenly equipped with some air tap holes, and the center of body is provided with the placement hole for wearing fibre-optic catheter.
The present invention has following beneficial effect:
(1) in the loose sleeve pipe tube wall in Full-dry optical cable of the present invention, be equipped with thin steel wire, the tensile strength of loose sleeve pipe improved greatly, and then improved the tensile property of optical cable, realize the laying of optical cable long span; Nonmetal macromolecular material is owing to there will be secondary crystallization, producing certain axial after-contraction causes the variation of loose casing length and produces remaining farm labourer's skill and change, affect properties of optical fiber cable, and the two thin steel wires of the present invention are added in loose casing wall, the close contact of fine rule and loose sleeve pipe nonmetallic materials hinders the axial shrinkage of loose sleeve pipe to a certain extent, and then improves the anti-contracility of loose sleeve pipe.
(2) there is not the filling of ointment in Full-dry optical cable of the present invention, greatly alleviated the quality of optical cable, environmental protection easy to clean in the time of construction welding;
(3) Full-dry optical cable heat resistance of the present invention is good, is applicable to severe temperature environment, and processing performance is stable.
Brief description of the drawings:
Fig. 1 is the structure chart of Full-dry optical cable of the present invention.
Fig. 2 is the structure chart of the manufacturing installation of loose sleeve pipe in the present invention.
Fig. 3 is the structure chart of the inside and outside mould in the manufacturing installation of Fig. 2 pine sleeve pipe.
Fig. 4 is the structure chart of the air splitter in the manufacturing installation of Fig. 2 pine sleeve pipe.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, a kind of Full-dry optical cable of the present invention, comprises central reinforce member 1, waterstop 6, PE sheath 7 and loose sleeve pipe 8, and central reinforce member 1 is stranded and form cable core 9 with some loose sleeve pipes 8, waterstop 6 is wrapped in the outer surface of cable core 9, and PE sheath 7 is wrapped on waterstop 6.
Loose sleeve pipe 8 in the present invention comprises empty set pipe 2, optical fiber 3, water blocking yarn 4 and thin steel wire 5, and optical fiber 3 and water blocking yarn 4 are arranged in the inner chamber of empty set pipe 2, and at least two thin steel wires 5 are distributed in the tube wall of empty set pipe 2 along the axial direction of empty set pipe 2. Thin steel wire 5 can improve the intensity of optical cable loose tube of the present invention, anti-contraction and heat resistance.
In the present invention, in the tube wall of loose sleeve pipe 8, be equipped with two thin steel wires 5, these two thin steel wires 5 are symmetrically set in the tube wall of loose sleeve pipe.
Central reinforce member 1 in the present invention adopts FRP material to make, and is arranged with water blocking yarn (not shown in FIG.) on the surface of central reinforce member 1, and this water blocking yarn is filled the gap between central reinforce member 1 and loose sleeve pipe 8, increases Full-dry optical cable block-water performance of the present invention.
For further increasing optical cable tensile performance of the present invention, between waterstop 6 and PE sheath 7, be filled with aramid yarn 71. For making optical cable baring easy construction, in aramid yarn, rope 72 is torn in cross-under.
As Fig. 2, for ease of producing loose sleeve pipe 8, the invention provides the manufacturing installation of loose sleeve pipe in a kind of Full-dry optical cable, this device comprises external mold 12, fibre-optic catheter 13, seal cover 15, talcum powder case 16, be provided with the internal mold 11 of through hole 110 and be provided with the gas conduit 14 of inflation inlet 140, internal mold 11 is located in external mold 12, and be formed with die cavity 100 between internal mold 11 and external mold 12, the left end of gas conduit 14 and internal mold 11 are tightly connected, and gas conduit 14 connects with the through hole 110 of internal mold, the right-hand member of gas conduit 14 and seal cover 15 are tightly connected, fibre-optic catheter 13 is located in gas conduit 14, and right-hand member passes seal cover 15 and is connected with talcum powder case 16.
In conjunction with Fig. 3, the present invention is connected in loose sleeve pipe for ease of thin steel wire 5 in extrusion process, on internal mold 11 and seal cover 15, be respectively equipped with the first metal cable-through hole 111 and the second metal cable-through hole 151, wherein, the first metal cable-through hole 111 connects with die cavity 100 and through hole 110 respectively.
Be connected with guide pin 17 at the right-hand member of fibre-optic catheter 13, this guide pin 17 passes the through hole 110 of internal mold 11 and stretches out outside internal mold 11.
As Fig. 4, in gas conduit 14, be provided with air splitter 141, this air splitter 141 is a circular body, is evenly equipped with some air tap holes 142 at the circumferencial direction of this body, the center of body is provided with the placement hole 143 for wearing fibre-optic catheter 13. Air splitter 141 can make the dry gas voltage stabilizing shunting of filling be filled with, the stuffing pressure of control gas that can be more stable.
The present invention makes the talcum powder in talcum powder case 16 can be full of uniformly talcum powder case 16, talcum powder case 16 is provided with to oscillator, and on talcum powder case 16, be connected with compressed air hose (not shown in FIG.), by frequency of oscillation and the compressed-air actuated gas flow of controlling oscillator, talcum powder is full of in talcum powder case 16 with the state of evenly breaing up.
The production method of Full-dry optical cable of the present invention is as follows:
1) making of loose sleeve pipe 8:
A) penetrate thin steel wire extrusion molding empty set pipe: in two first metal cable-through holes 111 on the internal mold 11 of extruding machine, penetrate respectively thin steel wire 5, make the die cavity 100 of these two thin steel wires 5 through extruding machine. Empty set pipe 2 is extruded from the die cavity 100 of extruding machine, and two thin steel wire 5 symmetries are through in the tube wall of this empty set pipe 2.
B) talcum powder absorption: optical fiber 3 and water blocking yarn 4 carry out unwrapping wire by secondary coating actinobacillus device, after converging, enter in talcum powder case 16, by frequency of oscillation and the compressed-air actuated gas flow of controlling oscillator, talcum powder is full of in talcum powder case 16 with the state of evenly breaing up, optical fiber 3 and water blocking yarn 4 pass successively fibre-optic catheter 13 and guide pin 17 and enter in empty set pipe 2 adsorb talcum powder in traveling process after; Talcous existence can reduce between optical fiber and optical fiber, frictional force between optical fiber and water blocking yarn, between water blocking yarn and empty set inside pipe wall, solves the uncontrollable problem of remaining length causing due to the impact of frictional static in dry type pine sleeve pipe production process.
C) be blown into gas: make optical fiber dry by gas conduit 14 to being filled with nitrogen in empty set pipe, complete the production of final loose sleeve pipe 8. Can control and adjust by controlling the size of the gas flow passing in gas conduit 14 size of the caliber of empty set pipe.
2) making of cable core 9: the central reinforce member 1 that outer surface is arranged with to water blocking yarn and some loose sleeve pipes 8 carry out stranded and form cable core 9. In the present invention, on central reinforce member 1, the manufacture craft of the technique of winding water blocking yarn and cable core 9 is identical with the manufacture craft of central reinforce member parcel water blocking yarn and cable core in prior art, therefore no longer describe in detail.
3) making of Full-dry optical cable: the outer surface parcel waterstop 6 at cable core 9 forms Full-dry optical cable with PE restrictive coating 7; For further increasing optical cable tensile performance, between waterstop 6 and PE sheath 7, be filled with aramid yarn 71. For making optical cable baring easy construction, in aramid yarn, rope 72 is torn in cross-under. The manufacture craft of Full-dry optical cable of the present invention is identical with the manufacture craft of optical cable in prior art, therefore no longer describe in detail. In the present invention, between waterstop 6 and PE sheath 7, be filled with aramid yarn 71 and in aramid yarn cross-under have tear in rope 72 technique and prior art, in optical cable, increase aramid yarn and tear the technique of restricting identical, therefore no longer describe in detail.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make under the premise without departing from the principles of the invention some improvement, and these improve and also should be considered as protection scope of the present invention.
Claims (10)
1. the production method of a Full-dry optical cable, comprise: the making step of loose sleeve pipe, comprise and central reinforce member and some described loose sleeve pipes are carried out to the cable core making step of stranded formation cable core and be included in the making step of cable core outer surface parcel waterstop and PE restrictive coating formation Full-dry optical cable, it is characterized in that: the making step of described loose sleeve pipe comprises:
Penetrate thin steel wire extrusion molding empty set pipe, penetrate at least two thin steel wires at the die cavity of the extruding machine for extrusion molding empty set pipe, this thin steel wire is distributed in the empty set tube wall of extrusion moulding;
Optical fiber penetrates empty set pipe, after optical fiber and water blocking yarn absorption talcum powder, penetrates in described empty set pipe;
Be blown into gas, to being blown into gas in described empty set pipe with dry optical fiber and finely tuning the pipe diameter size of empty set pipe, form loose sleeve pipe.
2. the manufacture method of Full-dry optical cable as claimed in claim 1, is characterized in that: described thin steel wire is provided with two, and symmetry is through in the tube wall of loose sleeve pipe.
3. the manufacture method of Full-dry optical cable as claimed in claim 1, is characterized in that: described dry gas is nitrogen.
4. a Full-dry optical cable, comprise central reinforce member (1), waterstop (6), PE sheath (7) and loose sleeve pipe (8), described central reinforce member (1) and some loose sleeve pipes (8) are stranded and form cable core (9), described PE sheath (7) and waterstop (6) are wrapped in the outer surface of cable core (9) successively, it is characterized in that: described loose sleeve pipe (8) comprises empty set pipe (2), optical fiber (3), water blocking yarn (4) and thin steel wire (5), described in two, thin steel wire (5) is arranged on the sidewall of empty set pipe (2), optical fiber (3) and water blocking yarn (4) are arranged in empty set pipe (2).
5. the manufacture method of Full-dry optical cable as claimed in claim 4, is characterized in that: described thin steel wire (5) is provided with two, and symmetry is through in the tube wall of loose sleeve pipe.
6. the manufacturing installation of loose sleeve pipe in a Full-dry optical cable, it is characterized in that: comprise external mold (12), fibre-optic catheter (13), seal cover (15), talcum powder case (16), be provided with the internal mold (11) of through hole (110) and be provided with the gas conduit (14) of inflation inlet (140), described internal mold (11) is located in external mold (12), and be formed with die cavity (100) between the two, one end of gas conduit (14) and internal mold (11) are tightly connected, and the through hole of gas conduit and internal mold (110) connects, the other end and seal cover (15) are tightly connected, fibre-optic catheter (13) is located in gas conduit (14), and one end is passed seal cover (15) and is connected with talcum powder case (16).
7. the manufacturing installation of loose sleeve pipe in Full-dry optical cable as claimed in claim 6, it is characterized in that: on described internal mold (11) and seal cover (15), be respectively equipped with the first metal cable-through hole (111) and the second metal cable-through hole (151), described the first metal cable-through hole (111) connects with die cavity (100) and through hole (110) respectively.
8. the manufacturing installation of loose sleeve pipe in Full-dry optical cable as claimed in claim 7, is characterized in that: on described fibre-optic catheter (13), be connected with guide pin (17), this guide pin (17) passes the through hole (110) of internal mold (11) and stretches out outside internal mold (11).
9. the manufacturing installation of loose sleeve pipe in Full-dry optical cable as claimed in claim 7, is characterized in that: in described gas conduit (14), be provided with air splitter (141).
10. the manufacturing installation of loose sleeve pipe in Full-dry optical cable as claimed in claim 9, it is characterized in that: described air splitter (141) has a circular body, the circumferencial direction of this body is evenly equipped with some air tap holes (142), and the center of body is provided with the placement hole (143) for wearing fibre-optic catheter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135289.7A CN105589155B (en) | 2016-03-10 | 2016-03-10 | The manufacturing device of Loose tube in the production method and optical cable of a kind of Full-dry optical cable and optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135289.7A CN105589155B (en) | 2016-03-10 | 2016-03-10 | The manufacturing device of Loose tube in the production method and optical cable of a kind of Full-dry optical cable and optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105589155A true CN105589155A (en) | 2016-05-18 |
| CN105589155B CN105589155B (en) | 2019-03-19 |
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|---|---|---|---|
| CN201610135289.7A Active CN105589155B (en) | 2016-03-10 | 2016-03-10 | The manufacturing device of Loose tube in the production method and optical cable of a kind of Full-dry optical cable and optical cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154471A (en) * | 2016-08-30 | 2016-11-23 | 南京华信藤仓光通信有限公司 | The production method of dry type big data light electrical network cable and big data light electrical network cable |
| WO2017202099A1 (en) * | 2016-05-24 | 2017-11-30 | 烽火通信科技股份有限公司 | All-dry optical fiber ribbon loose tube and manufacturing method thereof |
| CN108333702A (en) * | 2018-05-11 | 2018-07-27 | 长飞光纤光缆兰州有限公司 | A kind of optical fiber secondary coating is from centering type coating unit |
| CN108859052A (en) * | 2018-05-03 | 2018-11-23 | 烽火通信科技股份有限公司 | Dry-type fiber loose tube production equipment, production method and Dry-type fiber loose tube |
| CN109693359A (en) * | 2018-12-25 | 2019-04-30 | 江苏亨通光电股份有限公司 | Full-dry optical cable loose tube production technology and its molding machine |
| CN115685466A (en) * | 2022-11-14 | 2023-02-03 | 长飞光纤光缆股份有限公司 | Central beam tube air-blowing micro cable, extrusion die and preparation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377738B1 (en) * | 1998-12-04 | 2002-04-23 | Pirelli Cable Corporation | Optical fiber cable and core with a reinforced buffer tube having visible strength members and methods of manufacture thereof |
| CN200983023Y (en) * | 2006-12-07 | 2007-11-28 | 宁波振东光电有限公司 | An optical cable |
| US20130309398A1 (en) * | 2007-11-09 | 2013-11-21 | Fujikura Ltd. | Method for extrusion-molding loose tube and apparatus therefor, and loose tube |
| CN103991208A (en) * | 2014-06-03 | 2014-08-20 | 吴江通信电缆厂 | Extrusion molding mold for optical cable sheath carrying parallel steel wires |
| US20150086168A1 (en) * | 2012-09-26 | 2015-03-26 | Corning Cable Systems Llc | Binder film for a fiber optic cable |
| CN104608357A (en) * | 2014-12-30 | 2015-05-13 | 长飞光纤光缆股份有限公司 | Mold for inflating, filling and forming of full-dry optical-cable loose tube |
-
2016
- 2016-03-10 CN CN201610135289.7A patent/CN105589155B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377738B1 (en) * | 1998-12-04 | 2002-04-23 | Pirelli Cable Corporation | Optical fiber cable and core with a reinforced buffer tube having visible strength members and methods of manufacture thereof |
| CN200983023Y (en) * | 2006-12-07 | 2007-11-28 | 宁波振东光电有限公司 | An optical cable |
| US20130309398A1 (en) * | 2007-11-09 | 2013-11-21 | Fujikura Ltd. | Method for extrusion-molding loose tube and apparatus therefor, and loose tube |
| US20150086168A1 (en) * | 2012-09-26 | 2015-03-26 | Corning Cable Systems Llc | Binder film for a fiber optic cable |
| CN103991208A (en) * | 2014-06-03 | 2014-08-20 | 吴江通信电缆厂 | Extrusion molding mold for optical cable sheath carrying parallel steel wires |
| CN104608357A (en) * | 2014-12-30 | 2015-05-13 | 长飞光纤光缆股份有限公司 | Mold for inflating, filling and forming of full-dry optical-cable loose tube |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017202099A1 (en) * | 2016-05-24 | 2017-11-30 | 烽火通信科技股份有限公司 | All-dry optical fiber ribbon loose tube and manufacturing method thereof |
| CN106154471A (en) * | 2016-08-30 | 2016-11-23 | 南京华信藤仓光通信有限公司 | The production method of dry type big data light electrical network cable and big data light electrical network cable |
| CN106154471B (en) * | 2016-08-30 | 2023-04-28 | 南京华信藤仓光通信有限公司 | Production method of full-dry type big data photoelectric network cable and big data photoelectric network cable |
| CN108859052A (en) * | 2018-05-03 | 2018-11-23 | 烽火通信科技股份有限公司 | Dry-type fiber loose tube production equipment, production method and Dry-type fiber loose tube |
| CN108859052B (en) * | 2018-05-03 | 2021-03-02 | 烽火通信科技股份有限公司 | Dry-type optical fiber loose tube production equipment and production method and dry-type optical fiber loose tube |
| CN108333702A (en) * | 2018-05-11 | 2018-07-27 | 长飞光纤光缆兰州有限公司 | A kind of optical fiber secondary coating is from centering type coating unit |
| CN109693359A (en) * | 2018-12-25 | 2019-04-30 | 江苏亨通光电股份有限公司 | Full-dry optical cable loose tube production technology and its molding machine |
| WO2020134182A1 (en) * | 2018-12-25 | 2020-07-02 | 江苏亨通光电股份有限公司 | Fully-dry optical cable loose sleeve production process and shaping apparatus thereof |
| CN115685466A (en) * | 2022-11-14 | 2023-02-03 | 长飞光纤光缆股份有限公司 | Central beam tube air-blowing micro cable, extrusion die and preparation method |
| CN115685466B (en) * | 2022-11-14 | 2023-12-19 | 长飞光纤光缆股份有限公司 | Central beam tube air-blowing micro cable and preparation method thereof |
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