CN106772860A - A kind of vitta of 8 shaped optical cable three extrusion die sleeve - Google Patents
A kind of vitta of 8 shaped optical cable three extrusion die sleeve Download PDFInfo
- Publication number
- CN106772860A CN106772860A CN201611260336.7A CN201611260336A CN106772860A CN 106772860 A CN106772860 A CN 106772860A CN 201611260336 A CN201611260336 A CN 201611260336A CN 106772860 A CN106772860 A CN 106772860A
- Authority
- CN
- China
- Prior art keywords
- vitta
- die sleeve
- hole
- messenger wire
- cable core
- 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.)
- Granted
Links
- 241001463139 Vitta Species 0.000 title claims abstract description 98
- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 238000001125 extrusion Methods 0.000 title abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 230000003139 buffering effect Effects 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 2
- 241000614515 Emblemaria vitta Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a kind of vitta of 8 shaped optical cable three extrusion die sleeve, including the die sleeve body with hollow cavity, the cavity of the die sleeve body interior includes taper extruding cavity and the forming cavity connected with its small openend；The forming cavity is in integrally 8-shaped, including the messenger wire that is correspondingly arranged up and down mouthful and cable core mouthful, is connected by elongated slot between the two；Vitta injection buffering area, overflow area and injection region are sequentially provided with the outside of the die sleeve body, the messenger wire vitta hole connected with messenger wire mouth and the cable core vitta hole connected with cable core mouth are radially provided with die sleeve body；The messenger wire vitta hole and cable core vitta hole are set close to the injection region.This die sleeve can stage by stage be carried out to the extrusion of vitta, and vitta material by buffering area, overflow area, injection region and flat vitta hole, makes the extrusion of whole vitta more flatten out surely respectively, and pressure distribution is uniform, improves production efficiency, and the extrusion quality of vitta is high.
Description
Technical field
The invention belongs to cable production equipment technical field, die sleeve is extruded more particularly, to a kind of vitta of 8 shaped optical cable three.
Background technology
The popularization of optical cable and development in the world by the scene of more than 30 years, since first optical cable is laid
Till now, same pipeline, same electric pole or even same model optical cable, can all exist to some extent Duo Jia operators,
The optical cable of Multiple Type, increased the identification difficulty of oneself optical cable, if in the axially disposed one or more color color of cable body
Bar, just can well solve installation, the difficult problem of maintenance identification.The manufacture of vitta is accomplished by a set of rational vitta extrusion work
Skill, most important is exactly a kind of effective vitta extrusion die sleeve.Existing vitta extrudes die sleeve in vitta extrusion,
Stability is poor, it is difficult to adjust vitta width, and mostly using circular vitta extrusion cavities, its sectional area is big, causes pressure excessive, shadow
The extrusion quality of vitta is rung, the outward appearance to optical cable or even service life from now on bring hidden danger.
The content of the invention
In view of this, it is contemplated that overcoming defect present in above-mentioned prior art, a kind of color of 8 shaped optical cable three is proposed
Bar extrudes die sleeve.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of vitta of 8 shaped optical cable three extrusion die sleeve, including the die sleeve body with hollow cavity, the die sleeve body interior
Cavity include taper extruding cavity and the forming cavity that is connected with its small openend；The forming cavity is in integrally 8-shaped, including upper
Under the messenger wire that is correspondingly arranged mouthful and cable core mouthful, connected by elongated slot between the two；Vitta is sequentially provided with the outside of the die sleeve body
Injection buffering area, overflow area and injection region, be radially provided with die sleeve body connected with messenger wire mouth messenger wire vitta hole,
And the cable core vitta hole connected with cable core mouth；The messenger wire vitta hole and cable core vitta hole are set close to the injection region.
Further, the buffering area and the injection region are the circular groove around the die sleeve body outer wall；Institute
It is the projection between the buffering area and injection region groove to state overflow area, and the raised upper surface is less than the die sleeve body outer wall
Surface.
Further, the raised upper surface is plane.
Further, distance is 0.5mm between the raised upper surface and the outer wall of the die sleeve body.
Further, depth of groove of the depth of groove of the buffering area more than the injection region.
Further, the depth of groove of the buffering area is 1.5-2mm.
Further, the messenger wire vitta hole and the cable core vitta hole are flat hole, and cable core vitta hole cross section
More than the cross section in messenger wire vitta hole.
Further, the axis of the die sleeve body is parallel perpendicular to the messenger wire vitta hole and the cable core vitta hole
Both sides.
Relative to prior art, the present invention has the advantage that：
This die sleeve can stage by stage be carried out to the extrusion of vitta, vitta material respectively by buffering area, overflow area, injection region and
Flat vitta hole, makes the extrusion of whole vitta more flatten out surely, and pressure distribution is uniform, production efficiency is improve, using this die sleeve
Speed of production can reach 50m/min, be more than doubled than before, because vitta hole is designed using flat hole so that color wide
The production of bar is achieved, and because the sectional area in conventional circular port vitta hole is big pressure will not be caused excessive, influences squeezing for vitta
The problem of mass.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is structure sectional view of the invention；
Fig. 2 is the left view schematic diagram of Fig. 1；
Fig. 3 is structural representation of the invention.
Description of reference numerals：
1- die sleeve bodies；2- taper extruding cavities；3- forming cavities；4- messenger wires mouthful；5- cable cores mouthful；6- elongated slots；7- vittas inject
Buffering area；8- overflow areas；9- injection regions；10- messenger wire vittas hole；11- cable core vittas hole.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark
Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Limitation of the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of vitta of 8 shaped optical cable three extrusion die sleeve, as shown in Figures 1 to 3, including the die sleeve body 1 with hollow cavity,
Cavity inside the die sleeve body 1 includes taper extruding cavity 2 and the forming cavity 3 connected with its small openend；The forming cavity 3
Overall is in 8-shaped, including the messenger wire mouthful 4 and cable core mouthful 5 being correspondingly arranged up and down, is connected by elongated slot 6 between the two；The die sleeve sheet
The outside of body 1 is sequentially provided with vitta injection buffering area 7, overflow area 8 and injection region 9, is radially provided with die sleeve body 1 and institute
The cable core vitta hole 11 stated the messenger wire vitta hole 10 of the connection of messenger wire mouthful 4 and connected with cable core mouthful 5；The messenger wire vitta hole 10
Set close to the injection region with cable core vitta hole 11.The caliber size of messenger wire mouthful 4 and cable core mouthful 5 sets according to optical cable specification
Meter.
Above-mentioned buffering area 7 and the injection region 9 are the circular groove around the outer wall of die sleeve body 1；It is described to overflow
Stream area is the projection between buffering area described in 8 and injection region groove, and the raised upper surface is less than the die sleeve body outer wall table
Face, above-mentioned injection region is as the memory channel to each vitta hole injection vitta material.
The arc radius of the circular groove of buffering area 7 and injection region 9 can have been adjusted according to vitta extrusion capacity, groove
Depth is mainly used in control vitta and deposits glue amount, and adaptable specification is made according to actual needs.Overflow area is buffering area to injection
The transitional region in area, the raised upper surface in overflow area is preferably plane, and its surface has been raised compared with buffering area bottom.
Distance is 0.5mm between above-mentioned raised upper surface and the outer wall of the die sleeve body, and the vitta in buffering area is former
After material is built up, injection region is overflowed to through overflow area, messenger wire vitta hole 10 and cable core vitta hole 11 are flowed to, by buffering area 7, overflow
Area 8 and injection region 9 have ensured vitta stream to stabilization and pressure balance, and vitta mass of foundation effectively improves.
Depth of groove of the depth of groove of above-mentioned buffering area 7 more than the injection region 9.Generally, the depth of groove of buffering area 7
It is 1.5-2mm, the two side of each groove is equipped with gentle slope, it is ensured that vitta material stablizes gentle flowing.
Messenger wire mouthful and cable core mouthful be the pith of this die sleeve, carries the sheath body and messenger wire body of 8 shaped optical cables
Extrusion function, above-mentioned messenger wire vitta hole 10 and the cable core vitta hole 11 are flat hole, and the external diameter of usual cable core is typically larger than
The external diameter of messenger wire, therefore, the cross section in cable core vitta hole 11 is set greater than the cross section in messenger wire vitta hole 10.
Cable core vitta hole 7 uses flat hole, and both sides are that radius is the semicircle of 0.8mm, meanwhile, the axis of die sleeve body 1
Perpendicular to the parallel both sides in the messenger wire vitta hole 10 and the cable core vitta hole 11, i.e. vitta material extrusion vitta width
Direction is identical with the axial direction of optical cable, can effectively control vitta extrusion pressure, is especially suitable for the extrusion of width vitta, improves production
Efficiency and extrusion quality.
Die sleeve is extruded using this vitta.Extrusion to vitta is carried out stage by stage, and vitta material passes through buffering area, overflow respectively
Area, injection region and flat vitta hole, make the extrusion of whole vitta more flatten out surely, and pressure distribution is uniform, improves production efficiency,
50m/min can be reached using this die sleeve speed of production, be more than doubled than before, because vitta hole is set using flat hole
Meter so that the production of vitta wide is achieved, will not cause pressure excessive, shadow because the sectional area in conventional circular port vitta hole is big
Ring the problem of the extrusion quality of vitta.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of vitta of 8 shaped optical cable three extrudes die sleeve, it is characterised in that：Including the die sleeve body with hollow cavity, the mould
Covering the cavity of body interior includes taper extruding cavity and the forming cavity connected with its small openend；The forming cavity is in integrally 8
Font, including the messenger wire that is correspondingly arranged up and down mouthful and cable core mouthful, are connected between the two by elongated slot；The outside of the die sleeve body according to
It is secondary to be provided with vitta injection buffering area, overflow area and injection region, radially it is provided with what is connected with messenger wire mouth on die sleeve body
Messenger wire vitta hole and the cable core vitta hole connected with cable core mouth；The messenger wire vitta hole and cable core vitta hole are close to described
Injection region is set.
2. a kind of vitta of 8 shaped optical cable three according to claim 1 extrudes die sleeve, it is characterised in that：The buffering area and
The injection region is the circular groove around the die sleeve body outer wall；The overflow area is the buffering area and injection region
Projection between groove, the raised upper surface is less than the die sleeve body outer wall surface.
3. a kind of vitta of 8 shaped optical cable three according to claim 2 extrudes die sleeve, it is characterised in that：It is described raised upper
Surface is plane.
4. a kind of vitta of 8 shaped optical cable three according to Claims 2 or 3 extrudes die sleeve, it is characterised in that：The projection
Distance is 0.5mm between the outer wall of upper surface and the die sleeve body.
5. a kind of vitta of 8 shaped optical cable three according to claim 2 extrudes die sleeve, it is characterised in that：The buffering area
Depth of groove of the depth of groove more than the injection region.
6. a kind of vitta of 8 shaped optical cable three according to claim 2 or 5 extrudes die sleeve, it is characterised in that：The buffering area
Depth of groove be 1.5-2mm.
7. a kind of vitta of 8 shaped optical cable three according to claim 1 extrudes die sleeve, it is characterised in that：The messenger wire vitta
Hole and the cable core vitta hole are flat hole, and cable core vitta hole cross section of the cross section more than messenger wire vitta hole.
8. a kind of vitta of 8 shaped optical cable three according to claim 4 extrudes die sleeve, it is characterised in that：The die sleeve body
Axis perpendicular to the parallel both sides in the messenger wire vitta hole and the cable core vitta hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260336.7A CN106772860B (en) | 2016-12-30 | 2016-12-30 | Extrusion die sleeve for three-color strips of 8-shaped optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260336.7A CN106772860B (en) | 2016-12-30 | 2016-12-30 | Extrusion die sleeve for three-color strips of 8-shaped optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106772860A true CN106772860A (en) | 2017-05-31 |
| CN106772860B CN106772860B (en) | 2023-11-24 |
Family
ID=58954775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611260336.7A Active CN106772860B (en) | 2016-12-30 | 2016-12-30 | Extrusion die sleeve for three-color strips of 8-shaped optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106772860B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340556A (en) * | 2017-12-29 | 2018-07-31 | 通鼎互联信息股份有限公司 | A kind of molding machine of 8 word cable of double-colored item |
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| JP2001004882A (en) * | 1999-06-17 | 2001-01-12 | Fujikura Ltd | Method for identifying and displaying optical fiber cord and optical fiber cord with identification display |
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| CN105223669A (en) * | 2015-11-17 | 2016-01-06 | 江苏亨通光电股份有限公司 | Stranded optical fiber optical cable three-layer co-extruded Loose tube method and three-layer loose tubes |
| CN105729754A (en) * | 2016-05-05 | 2016-07-06 | 沈阳亨通光通信有限公司 | Intermittent color bar extruding device and extruding technology |
| CN106024134A (en) * | 2016-08-01 | 2016-10-12 | 安徽太平洋电缆股份有限公司 | Multi-colored-bar bicolor insulating cable core and manufacturing mold and method thereof |
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2016
- 2016-12-30 CN CN201611260336.7A patent/CN106772860B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2056324A1 (en) * | 1991-11-27 | 1993-05-28 | James C. Grant | Method and apparatus for providing jackets on cable |
| JP2001004882A (en) * | 1999-06-17 | 2001-01-12 | Fujikura Ltd | Method for identifying and displaying optical fiber cord and optical fiber cord with identification display |
| CN101635189A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Improved two-color cable sheath extruded mould |
| CN101635193A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Self-supporting wire cable jacket extrusion mold |
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| CN202008876U (en) * | 2011-05-09 | 2011-10-12 | 河南省通信电缆有限公司 | Die sleeve for single wire of cable |
| CN202183281U (en) * | 2011-08-02 | 2012-04-04 | 无锡电缆厂有限公司 | Uniformly extruding ring of bicolor plastic for cable |
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| CN105223669A (en) * | 2015-11-17 | 2016-01-06 | 江苏亨通光电股份有限公司 | Stranded optical fiber optical cable three-layer co-extruded Loose tube method and three-layer loose tubes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340556A (en) * | 2017-12-29 | 2018-07-31 | 通鼎互联信息股份有限公司 | A kind of molding machine of 8 word cable of double-colored item |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106772860B (en) | 2023-11-24 |
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