CN108169863A - A kind of dry fiber optic cables packing structure and its manufacturing method of blocking water - Google Patents
A kind of dry fiber optic cables packing structure and its manufacturing method of blocking water Download PDFInfo
- Publication number
- CN108169863A CN108169863A CN201711468285.1A CN201711468285A CN108169863A CN 108169863 A CN108169863 A CN 108169863A CN 201711468285 A CN201711468285 A CN 201711468285A CN 108169863 A CN108169863 A CN 108169863A
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- CN
- China
- Prior art keywords
- packing
- water
- fiber optic
- cooling tube
- optic cables
- 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
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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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of dry fiber optic cables packing structure and its manufacturing methods of blocking water, to foam filled layers of the PE by formation solid shape after extruding machine extrusion moulding, PBT is by forming the restrictive coating of hollow shape and wrapping up filled layer after extruding machine extrusion moulding, water blocking yarn is cooled down after being twisted with restrictive coating into air cooling mechanism, ultimately forms the packing that blocks water.Water blocking yarn is wound on restrictive coating by the present invention, together with packing and water blocking yarn organically processing, is reduced the dosage of water blocking yarn, is increased block-water effect；Packing is composed of PE and PBT, and while block-water effect is ensured, can reduce the weight of packing can also reduce cost.
Description
Technical field：
The present invention relates to a kind of dry fiber optic cables packing structure and its manufacturing methods of blocking water.
Background technology：
Full-dry optical cable is in production, for the waterproof effect ensured, often the optical fiber in Full-dry optical cable and nonmetallic adds
Water blocking yarn is placed around strong part, water blocking yarn is also placed around Loose tube, in order to cost-effective, general design is will to fill
Item and water blocking yarn are separately put into optical cable, and the purpose of packing is to reduce the position that takes up space, and reduces the dosage of water blocking yarn, reaches
The shortcomings that reducing the purpose of cost, being arranged so that be exactly can be placed in process of production due to packing and water blocking yarn position
Shifted in production process, cause to block water it is uneven have one section of block-water effect good, have one section of block-water effect bad, still will appear portion
Divide the situation of infiltration.Therefore, it is necessory to be improved to the prior art to solve the deficiency of the prior art.
Invention content：
The present invention is to provide a kind of dry fiber optic cables packing structure that blocks water to solve the above-mentioned problems of the prior art
And its manufacturing method.
The technical solution adopted in the present invention has：The manufacturing method of a kind of dry fiber optic cables packing that blocks water, by the PE that foams
By forming the filled layer of solid shape, the shield that PBT passes through formation hollow shape after extruding machine extrusion moulding after extruding machine extrusion moulding
Jacket layer simultaneously wraps up filled layer, and water blocking yarn is cooled down after being twisted with restrictive coating into air cooling mechanism, ultimately forms the packing that blocks water.
Further, the air cooling mechanism includes air compressor, interior cooling tube and outer cooling tube, and interior cooling tube is coaxially put
In in outer cooling tube, and wind chamber is formed between the two, air inlet, the air inlet and air pressure are equipped on the outer wall of outer cooling tube
The air outlet of contracting machine is connected, and several ventholes are evenly equipped on the side wall of interior cooling tube.
Further, 1 ~ 5mm of the venthole.
Further, the compressed air require of the air compressor is 1-3L/min.
Further, the length of the interior cooling tube and the length of outer cooling tube are isometric, and length is 15~25m.
Further, the wall thickness of the restrictive coating hollow made of PBT is 0.05~0.1mm.
The present invention also provides a kind of dry fiber optic cables packing structure that blocks water, including water blocking yarn, the solid shape made of PE
Filled layer and made of PBT hollow shape restrictive coating, the filled layer be set on restrictive coating in, water blocking yarn is set around sheath
On layer.
The present invention has the advantages that：
1）Water blocking yarn is wound on restrictive coating by the present invention, and together with packing and water blocking yarn organically processing, reduction blocks water
The dosage of yarn, increases block-water effect；
2）Packing is composed of PE and PBT, and while block-water effect is ensured, the weight that can reduce packing can also
Reduce cost；
3）All it is water-cooling process after original packing extrusion moulding, but winds water blocking yarn on packing now, is hindered after water cooling
Water yarn expands the structure that can destroy packing, it is impossible to ensure the diameter and glacing flatness of packing, while it is also possible that water blocking yarn loses
The function of blocking water being gone, therefore present invention use is air-cooled, avoided because temperature is higher, water blocking yarn can be bonded together with PBT layers,
Structure is not destroyed, also can guarantee the performance of packing.
Description of the drawings：
Fig. 1 blocks water packing structure chart for the present invention.
Fig. 2 blocks water packing sectional view for the present invention.
Fig. 3 is the sectional view of cooling tube interior in of the invention and outer cooling tube.
In figure：1st, filled layer；2nd, restrictive coating；3rd, water blocking yarn；41st, interior cooling tube；42nd, outer cooling tube；43rd, wind chamber；410、
Venthole；420th, air inlet.
Specific embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of dry fiber optic cables packing structure that blocks water of the present invention, including water blocking yarn 3, by PE systems
Into solid shape filled layer 1 and made of PBT hollow shape restrictive coating 2, filled layer 1 be set on restrictive coating 2 in, water blocking yarn
3 are set around on restrictive coating 2.The wall thickness of restrictive coating 2 is 0.05~0.1mm.
For ease of producing the packing that blocks water, the present invention provides a kind of manufacturing method of dry fiber optic cables with the packing that blocks water, raw
During production, will foam filled layers 1 of the PE by formation solid shape after extruding machine extrusion moulding, after PBT is by extruding machine extrusion moulding
The restrictive coating 2 of hollow shape is formed, restrictive coating 2 wraps up filled layer 1, and water blocking yarn 3 enters air cooling mechanism after being twisted with restrictive coating 2 to carry out
Cooling, ultimately forms the packing that blocks water.
All it is water-cooling process after traditional packing extrusion moulding, since the present invention is to twist water blocking yarn 3 and restrictive coating 2
It closes, according to water-cooling process, water blocking yarn 3 can destroy the structure of packing due to expansion after water cooling, it is impossible to ensure the straight of packing
Diameter and glacing flatness, while it is also possible that water blocking yarn loses the function of blocking water, therefore the present invention uses air-cooled technique.
Air cooling mechanism in the present invention includes air compressor, interior cooling tube 41 and outer cooling tube 42, and interior cooling tube 41 is same
Axis is placed in outer cooling tube 42, and forms wind chamber 43 between the two, outer cooling tube 42 it is closed at both ends, the both ends of wind chamber are close
Envelope.Air inlet 420 is equipped on the outer wall of outer cooling tube 42, which is connected with the air outlet of air compressor, inside
Several ventholes 410 are evenly equipped on the side wall of cooling tube 41.
Water blocking yarn 3 penetrates interior cooling tube 41 after being twisted with restrictive coating 2, passes through air-cooled cooling.
1 ~ 5mm of venthole 410.The compressed air require of air compressor is 1-3L/min.
The length of interior cooling tube 41 and the length of outer cooling tube 42 are isometric, and length is 15~25m.It is inside and outside in the present invention
The length of cooling tube can be more short splicings, general 2 meters one, and length is removed with good take.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, several improvement can also be made without departing from the principle of the present invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (7)
1. a kind of dry fiber optic cables manufacturing method for the packing that blocks water, it is characterised in that：Foaming PE is extruded by extruding machine
The filled layer of solid shape is formed after type, PBT is by the restrictive coating of formation hollow shape after extruding machine extrusion moulding and wraps up filled layer,
Water blocking yarn is cooled down after being twisted with restrictive coating into air cooling mechanism, ultimately forms the packing that blocks water.
2. the dry fiber optic cables as described in claim 1 manufacturing method for the packing that blocks water, it is characterised in that：The air cooling mechanism
Including air compressor, interior cooling tube and outer cooling tube, interior cooling tube is coaxially placed in outer cooling tube, and forms wind between the two
Chamber is equipped with air inlet on the outer wall of outer cooling tube, which is connected with the air outlet of air compressor, in interior cooling tube
Several ventholes are evenly equipped on side wall.
3. the dry fiber optic cables as claimed in claim 2 manufacturing method for the packing that blocks water, it is characterised in that：The venthole
1~5mm。
4. the dry fiber optic cables as claimed in claim 2 manufacturing method for the packing that blocks water, it is characterised in that：The air compression
The compressed air require of machine is 1-3L/min.
5. the dry fiber optic cables as claimed in claim 2 manufacturing method for the packing that blocks water, it is characterised in that：The interior cooling tube
Length and outer cooling tube length it is isometric, length be 15~25m.
6. the dry fiber optic cables as described in claim 1 manufacturing method for the packing that blocks water, it is characterised in that：It is described by PBT systems
Into hollow restrictive coating wall thickness be 0.05~0.1mm.
7. a kind of dry fiber optic cables packing structure that blocks water, it is characterised in that：Including water blocking yarn（3）, the solid shape made of PE
Filled layer（1）And made of PBT hollow shape restrictive coating（2）, the filled layer（1）Set on restrictive coating（2）It is interior, it blocks water
Yarn（3）It is set around restrictive coating（2）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468285.1A CN108169863A (en) | 2017-12-29 | 2017-12-29 | A kind of dry fiber optic cables packing structure and its manufacturing method of blocking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468285.1A CN108169863A (en) | 2017-12-29 | 2017-12-29 | A kind of dry fiber optic cables packing structure and its manufacturing method of blocking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108169863A true CN108169863A (en) | 2018-06-15 |
Family
ID=62519650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711468285.1A Pending CN108169863A (en) | 2017-12-29 | 2017-12-29 | A kind of dry fiber optic cables packing structure and its manufacturing method of blocking water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108169863A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02239214A (en) * | 1989-03-13 | 1990-09-21 | Tokai Rubber Ind Ltd | Water absorptive material for water shielding in optical fiber cable |
| JPH0480122B2 (en) * | 1989-04-17 | 1992-12-17 | Nakatsuka Kogyo | |
| JPH07204288A (en) * | 1994-01-24 | 1995-08-08 | Furukawa Techno Material:Kk | Fireproofing structure for combustible cable |
| CN201063261Y (en) * | 2007-06-30 | 2008-05-21 | 蒋陆肆 | High-resistance aquosity cable conductor |
| CN201117366Y (en) * | 2007-11-16 | 2008-09-17 | 成都亨通光通信有限公司 | Optical cable possessing foaming filling element |
| CN202631821U (en) * | 2012-07-09 | 2012-12-26 | 武汉宇通光缆有限公司 | Novel water-blocking optical cable |
| CN103377779A (en) * | 2012-04-17 | 2013-10-30 | 上海新益电力线路器材有限公司 | Linked water-blocking yarn twisting apparatus |
| CN206774313U (en) * | 2017-05-10 | 2017-12-19 | 潘李杰 | A kind of cooling device for power cable production and processing |
-
2017
- 2017-12-29 CN CN201711468285.1A patent/CN108169863A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02239214A (en) * | 1989-03-13 | 1990-09-21 | Tokai Rubber Ind Ltd | Water absorptive material for water shielding in optical fiber cable |
| JPH0480122B2 (en) * | 1989-04-17 | 1992-12-17 | Nakatsuka Kogyo | |
| JPH07204288A (en) * | 1994-01-24 | 1995-08-08 | Furukawa Techno Material:Kk | Fireproofing structure for combustible cable |
| CN201063261Y (en) * | 2007-06-30 | 2008-05-21 | 蒋陆肆 | High-resistance aquosity cable conductor |
| CN201117366Y (en) * | 2007-11-16 | 2008-09-17 | 成都亨通光通信有限公司 | Optical cable possessing foaming filling element |
| CN103377779A (en) * | 2012-04-17 | 2013-10-30 | 上海新益电力线路器材有限公司 | Linked water-blocking yarn twisting apparatus |
| CN202631821U (en) * | 2012-07-09 | 2012-12-26 | 武汉宇通光缆有限公司 | Novel water-blocking optical cable |
| CN206774313U (en) * | 2017-05-10 | 2017-12-19 | 潘李杰 | A kind of cooling device for power cable production and processing |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |
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| RJ01 | Rejection of invention patent application after publication |