CN108333702A - A kind of optical fiber secondary coating is from centering type coating unit - Google Patents
A kind of optical fiber secondary coating is from centering type coating unit Download PDFInfo
- Publication number
- CN108333702A CN108333702A CN201810450774.2A CN201810450774A CN108333702A CN 108333702 A CN108333702 A CN 108333702A CN 201810450774 A CN201810450774 A CN 201810450774A CN 108333702 A CN108333702 A CN 108333702A
- Authority
- CN
- China
- Prior art keywords
- fiber
- conical surface
- pipe
- inner conical
- fine pipe
- 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
- G02B6/4479—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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
- B29C48/152—Coating hollow articles the inner surfaces thereof
- B29C48/153—Coating both inner and outer surfaces
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Coating Apparatus (AREA)
Abstract
The present invention relates to a kind of optical fiber secondary coatings from centering type coating unit, including by fiber paste coating unit, fine pipe is led by what fastening bolt was connect with oil-filled chamber, and it is fixed on and leads fine pipe periphery, and the head spreader of inner conical surface A and inner conical surface B are respectively equipped in it, hollow mold core is additionally provided in head spreader, the male cone (strobilus masculinus) of mold core can coordinate with head spreader inner conical surface A, it leads in fine pipe and is more than the steel pipe for leading fine pipe equipped with length, and runs through on leading fine pipe and steel pipe and offer the strip hole that can be in communication with the outside, leading the male cone (strobilus masculinus) of fine pipe simultaneously can coordinate with head spreader inner conical surface B.Whole device is simple in structure, operating aspect, does not need manual adjustment and automatic centering can be realized, and solves the problems, such as that mold mounting and adjusting is time-consuming in existing optical cable loose tube production, manages interior disconnected fine, casing bulge, improves the production efficiency and product qualified rate of optical cable.
Description
Technical field
The present invention relates to optical cable for communication technical field, especially a kind of optical fiber secondary coating is from centering type coating unit.
Background technology
It is also higher and higher to the quality requirement of optical cable and optical fibres with the continuous development of information industry, therefore to optical cable secondary
Production efficiency, product quality, product qualified rate, die change installation effectiveness in plastic sleeve technique etc. are proposed higher want
It asks.Traditional secondary coating ointment device for filling oil uses the principle of needle tubing injection, fiber paste is filled in PBT casings, there are molds
Specifications and models are more, lead fine pipe and the contact surface of fiber optic bundle is big, die change is inconvenient, mold centering adjusts time-consuming, ointment and flows
Unsmooth equal the problem of influencing efficiency, the and during manufacturing, fiber optic bundle lead in fine pipe the contact longer, space of distance compared with
It is small, it is easy accumulation sundries and blocks pipeline, certain resistance is caused to fiber optic bundle, to make optical cable be easy to be destroyed by external force,
Production process is caused to interrupt fine, casing bulge and other issues.Have in the prior art for the above problem of all kinds
Solution, include the optical cable for also needing to continue subsequent technique, carried out in coating in, wherein Authorization Notice No.
A kind of large core fiber, especially big core plastic cladded-fiber are disclosed for the utility application of CN201873623U
Resinous coat coating unit.The device includes a shell, and guiding mould is installed in shell, is guided between mould and housing bottom
For liquid coating chamber, corresponds to guiding mould in the bottom of shell and open up fairlead interface, it is characterised in that installed in fairlead interface
Flexible formation mould.The utility model can make optical fiber be in endoporus center by the cord of shaping mold cavity endoporus, then in light
After fibre draws shaping mold cavity, using the effect of liquid coating surface tension, the coating rapid closing divided by cord is made to form packet
Cover the outer layer of optical fiber.But automatic adjustment and centering are completed by the cord in shaping mold cavity endoporus, not only because of cord and optical fiber
Contact make entire coating procedure increased friction, and resistance is uneven, and is only completed pair by the surface tension of liquid coating
The cladding of optical fiber inevitably has covering unevenness or even exposed place.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, propose a kind of simple in structure, optical cable two easy to use
Secondary plastic sleeve is from centering type coating unit.
The optical fiber secondary coating of the present invention divides from centering type coating unit, including by oil-filled chamber, fiber optic bundle outlet mold, fiber paste
Flow the fiber paste coating unit of device and fiber optic bundle import mould composition, it is characterised in that：Further include by fastening bolt and oil-filled chamber
Connection is led that fine pipe and being fixed on leads fine pipe periphery and is respectively equipped with the head of inner conical surface A and inner conical surface B in it and shunts
It bores, is additionally provided with hollow mold core in head spreader, the male cone (strobilus masculinus) of mold core can coordinate with head spreader inner conical surface A, lead fine pipe
The interior length that is equipped with is more than the steel pipe for leading fine pipe, and runs through on leading fine pipe and steel pipe and offer the strip hole that can be in communication with the outside,
Leading the male cone (strobilus masculinus) of fine pipe simultaneously can coordinate with head spreader inner conical surface B.Fiber optic bundle is into mouth mold in the present invention, fiber paste current divider,
Fiber optic bundle outlet mold and lead fine pipe and be respectively positioned on same center line, by mold core and lead the periphery setting of fine pipe can be with head
The male cone (strobilus masculinus) of the inner conical surface cooperation of spreader reaches running through on steel pipe from centering purpose, and leading fine pipe for whole device
Offer the strip hole that can be in communication with the outside so that optical fiber is connected in coating procedure with ambient atmosphere, avoids generating negative pressure.It is whole
A apparatus structure is simple, operating aspect, does not need manual adjustment and automatic centering can be realized, and solves existing optical cable loose tube life
Mold mounting and adjusting is time-consuming in production, manages the problem of interior disconnected fibre, casing bulge, and production efficiency and the finished product for improving optical cable are qualified
Rate.
The optical fiber secondary coating of the present invention is shunted from centering type coating unit, the head spreader inner conical surface A with head
The taper for boring inner conical surface B is 3 ° -5 °.
Further, optical fiber secondary coating of the invention is from centering type coating unit, and the strip hole is four, and along center
Axisymmetrical is arranged, and human eye can be made easily to observe strip hole.
Further, optical fiber secondary coating of the invention is equipped with optical fiber from centering type coating unit, the oil-filled chamber successively
Beam outlet mold, fiber paste current divider and fiber optic bundle are into mouth mold, and fiber optic bundle outlet mold is close to the steel pipe one end led in fine pipe, fiber optic bundle
It is equipped with fiber entrance into mouth mold.Fiber optic bundle by fiber optic bundle into mouth mold, across the oil-filled chamber full of fiber paste, finally from fiber optic bundle
Outlet mold, which out enters, leads in fine pipe.
Further, optical fiber secondary coating of the invention sets centre bore from centering type coating unit, the fiber paste current divider,
Periphery is equipped with spiral flow channel, and runner is connected at the fiber paste entrance on oil-filled chamber.The symmetrical runner of installation in oil-filled chamber
Fiber paste current divider, and so that fiber paste is passed through pipeline and the gear pump of connection and oil-filled chamber is entered with certain pressure and flow, it avoids
When fiber paste fills oil pocket, certain impact resistance is caused to fiber optic bundle.
Further, optical fiber secondary coating of the invention stretches into mould from centering type coating unit, the steel pipe led in fine pipe
The length of in-core is 15-25mm.
Further, optical fiber secondary coating of the invention is from centering type coating unit, it is described be used for connecting lead fine pipe with it is oil-filled
The fastening bolt of chamber is limited with clamp spring.
Compared with prior art, the present invention has technique effect beneficial below：
A kind of optical fiber secondary coating of the present invention is from centering type coating unit, and wherein fiber optic bundle is into mouth mold, fiber paste current divider,
Fiber optic bundle outlet mold and lead fine pipe and be respectively positioned on same center line, by mold core and lead the periphery setting of fine pipe can be with head
The male cone (strobilus masculinus) of the inner conical surface cooperation of spreader reaches running through on steel pipe from centering purpose, and leading fine pipe for whole device
Offer the strip hole that can be in communication with the outside so that optical fiber is connected in coating procedure with ambient atmosphere, avoids generating negative pressure.It is whole
A apparatus structure is simple, operating aspect, does not need manual adjustment and automatic centering can be realized, and solves existing optical cable loose tube life
Mold mounting and adjusting is time-consuming in production, manages the problem of interior disconnected fibre, casing bulge, and production efficiency and the finished product for improving optical cable are qualified
Rate..
Description of the drawings
Fig. 1 is structure of the invention sectional view.
Fig. 2 is fiber paste diversion structure schematic diagram of the present invention.
Fig. 3 is that the present invention leads fine pipe structural schematic diagram.
In figure：1. head spreader, 1-1. inner conical surfaces A, 1-2. inner conical surface B, 2. mold cores, 3. lead fine pipe, 4. fastening bolts,
5. clamp spring, 6. oil-filled chambers, 7. fiber optic bundle outlet molds, 8. fiber paste current dividers, 9. fiber optic bundles are into mouth mold, 10. strip holes, 11. steel pipes,
12. fiber entrance, 13. fiber paste entrances.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail.
As shown in Figure 1-Figure 3：The optical fiber secondary coating of the present invention is from centering type coating unit, including by oil-filled chamber 6, optical fiber
The fiber paste coating unit that beam outlet mold 7, fiber paste current divider 8 and fiber optic bundle are formed into mouth mold 9 further includes by fastening bolt 4
What is connect with oil-filled chamber 6 leads that fine pipe 3 and being fixed on leads 3 periphery of fine pipe and is respectively equipped with inner conical surface A 1-1 and inner cone in it
The head spreader 1 of face B 1-2 leads fine pipe 3 and the fastening bolt 4 of oil-filled chamber 6 is limited with clamp spring 5 for connecting.Head
Hollow mold core 2 is additionally provided in spreader 1, the male cone (strobilus masculinus) of mold core 2 can coordinate with head spreader inner conical surface A 1-1, lead fine pipe 3
It is interior to be more than the steel pipe 11 for leading fine pipe 3 equipped with length, and run through on leading fine pipe 3 and steel pipe 11 and offer the length that can be in communication with the outside
Hole 10, while the male cone (strobilus masculinus) for leading fine pipe 3 can coordinate with head spreader inner conical surface B 1-2.Optical fiber is equipped in oil-filled chamber 6 successively
Beam outlet mold 7, fiber paste current divider 8 and fiber optic bundle are into mouth mold 9, and fiber optic bundle outlet mold 7 is close to the steel pipe 11 1 led in fine pipe 3
End, fiber optic bundle are equipped with fiber entrance 12 into mouth mold 9, and centre bore is set in fiber paste current divider 8, and periphery is equipped with spiral flow channel, and
Runner is connected at the fiber paste entrance 13 on oil-filled chamber 6.
In presently preferred embodiment, head spreader 1 is connected through a screw thread and leads the fixation of fine pipe 3, and in head spreader
The taper of conical surface A 1-1 and head spreader inner conical surface B 1-2 is 5 °, leads the length that the steel pipe 11 in fine pipe 3 stretches into mold core 2
For 15-25mm, strip hole 10 is four, and is symmetrical arranged along central axis, extraneous by the Kong Laiyu in fastening bolt 4
Connection.The centre bore aperture of fiber paste current divider 8 is 3-5mm, and the aperture value range of fiber optic bundle into mouth mold 9 is 1.1-1.4mm, light
The aperture value range of fine beam outlet mold 7 is 1.4-2.2mm, the equal rounding of entrance of fiber optic bundle into mouth mold 9 and fiber optic bundle outlet mold 7
Angle, rounding off reduce frictional resistance of the fiber optic bundle in traveling.
In use, by produce 6 cores/1.85mm PBT casings for, 6 optical fiber from fiber optic bundle into mouth mold 9 into
Enter, pass through fiber paste current divider 8, taken out of in the oil-filled chamber 6 full of fiber paste after fiber paste through fiber optic bundle outlet mold 7, finally via
The steel pipe 11 led in fine pipe 3 imports in mold core 2, completes the entire coating procedure of casing.Whole device is simple in structure, operation side
Face does not need manual adjustment and automatic centering can be realized, solve mold mounting and adjusting in the production of existing optical cable loose tube it is time-consuming,
In pipe the problem of disconnected fibre, casing bulge, the production efficiency and product qualified rate of optical cable are improved.
Claims (7)
1. a kind of optical fiber secondary coating divides from centering type coating unit, including by oil-filled chamber (6), fiber optic bundle outlet mold (7), fiber paste
The fiber paste coating unit that stream device (8) and fiber optic bundle are formed into mouth mold (9), it is characterised in that：Further include by fastening bolt (4)
What is connect with oil-filled chamber (6) leads that fine pipe (3) and being fixed on leads fine pipe (3) periphery and is respectively equipped with inner conical surface A (1- in it
1) with the head spreader of inner conical surface B (1-2) (1), head spreader (1) is interior to be additionally provided with hollow mold core (2), mold core (2)
Male cone (strobilus masculinus) can coordinate with head spreader inner conical surface A (1-1), lead in fine pipe (3) and be more than the steel pipe for leading fine pipe (3) equipped with length
(11), and run through on leading fine pipe (3) and steel pipe (11) and offer the strip hole (10) that can be in communication with the outside, meanwhile, lead fine pipe
(3) male cone (strobilus masculinus) can coordinate with head spreader inner conical surface B (1-2).
2. optical fiber secondary coating according to claim 1 is from centering type coating unit, which is characterized in that the head shunting
The taper for boring inner conical surface A (1-1) and head spreader inner conical surface B (1-2) is 3 ° -5 °.
3. optical fiber secondary coating according to claim 2 is from centering type coating unit, which is characterized in that the strip hole
(10) it is four, and is symmetrical arranged along central axis.
4. optical fiber secondary coating according to claim 3 is from centering type coating unit, which is characterized in that the oil-filled chamber
(6) fiber optic bundle outlet mold (7), fiber paste current divider (8) and fiber optic bundle are equipped in successively into mouth mold (9), fiber optic bundle outlet mold (7)
Close to steel pipe (11) one end led in fine pipe (3), fiber optic bundle is equipped with fiber entrance (12) into mouth mold (9).
5. optical fiber secondary coating according to claim 4 is from centering type coating unit, which is characterized in that the fiber paste shunting
Centre bore is set in device (8), periphery is equipped with spiral flow channel, and runner is connected at the fiber paste entrance (13) on oil-filled chamber (6).
6. optical fiber secondary coating according to claim 5 is from centering type coating unit, which is characterized in that described to lead fine pipe
(3) it is 15-25mm that the steel pipe (11) in, which stretches into the length in mold core (2),.
7. optical fiber secondary coating according to claim 6 is from centering type coating unit, which is characterized in that lead fibre for connecting
Pipe (3) and the fastening bolt (4) of oil-filled chamber (6) are limited with clamp spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450774.2A CN108333702A (en) | 2018-05-11 | 2018-05-11 | A kind of optical fiber secondary coating is from centering type coating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450774.2A CN108333702A (en) | 2018-05-11 | 2018-05-11 | A kind of optical fiber secondary coating is from centering type coating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108333702A true CN108333702A (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810450774.2A Pending CN108333702A (en) | 2018-05-11 | 2018-05-11 | A kind of optical fiber secondary coating is from centering type coating unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143503A (en) * | 2018-08-29 | 2019-01-04 | 长飞光纤光缆股份有限公司 | A kind of secondary coating glue injection machine |
| CN110787959A (en) * | 2019-12-03 | 2020-02-14 | 浙江东通光网物联科技有限公司 | Plastic-coated pre-coating device |
| CN110888211A (en) * | 2019-11-21 | 2020-03-17 | 江苏永鼎股份有限公司 | Optical fiber bundling die, apparatus and process |
| CN115230112A (en) * | 2022-07-08 | 2022-10-25 | 长飞光纤光缆股份有限公司 | Dry-type optical cable self-centering blowing device |
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