CN104400982B - Dry sleeve production mould - Google Patents
Dry sleeve production mould Download PDFInfo
- Publication number
- CN104400982B CN104400982B CN201410770292.7A CN201410770292A CN104400982B CN 104400982 B CN104400982 B CN 104400982B CN 201410770292 A CN201410770292 A CN 201410770292A CN 104400982 B CN104400982 B CN 104400982B
- Authority
- CN
- China
- Prior art keywords
- filament
- core rod
- perforating needle
- fixture
- die cap
- 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.)
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Classifications
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- 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
-
- 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
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention relates to optical fiber cable manufacturing equipment technical field, especially relate to dry sleeve production mould, include core rod, die cap and the hollow filament-perforating needle being assembled on extruder head, core rod has insertion mesopore and nozzle, nozzle periphery forms extrusion gap with the extrusion of die cap, filament-perforating needle one end passes through the insertion mesopore of core rod and stretches out outside die cap, and the filament-perforating needle other end is then threaded connection fixture, and fixture is assembled on extruder head and is provided with air admission hole.The voltage stabilizing gas that the present invention is passed through from the air admission hole of fixture is continuously and stably blown out by core rod nozzle, make to keep after the plastic extrusion in high temperature fused state of extrusion that external diameter is stable, profile rounding, while the gas of lower temperature can also accelerate the cooling of internal surface of sleeve pipe and effectively prevent the phenomenons such as long, the remaining length of excess fiber length in sleeve pipe is unstable, the sleeve pipe flat, casing size of change is unstable, it is ensured that the transmission performance of optical cable, mechanical and physical performance and temperature performance.
Description
Technical field
The present invention relates to optical fiber cable manufacturing equipment technical field, especially relates to a kind of dry sleeve production mould.
Background technology
In optical cable production now, the method that ferrule production technology all adopts fine cream filling, as fine cream is a kind of paste
Shape material, produces to optical cable and using the trouble for all bringing cleaning.Now with the rise of intelligent acess to family, optical cable access network
Middle common requirements clean environment firendly, the again light optical cable of convenience, the weight of continuing, dry fiber optic cables are a kind of ideal choses.But due in set
Lack lubrication and the isolation of ointment in pipe, optical fiber is easily contacted with the casing wall of the condition of high temperature, cause remaining length long and remaining
Length is unstable, directly affects transmission performance and the temperature performance of optical cable；On the other hand, due to having lacked ointment to space in sleeve pipe
Filling, easily there is sleeve pipe and become flat and cause casing size unstable, so as to affect the performance of optical cable further.
Content of the invention
It is an object of the invention to overcoming the defect of prior art, a kind of dry sleeve production mould, structure letter is provided
Single, easily to implement, gained sleeve pipe rounding, uniform wall thickness, excess fiber length is stablized controlled.
For reaching above-mentioned purpose, the present invention is adopted the following technical scheme that：
Dry sleeve production mould, includes the core rod and die cap being assembled on extruder head, and core rod has in insertion
Hole and nozzle, nozzle periphery form extrusion gap with the extrusion of die cap, and the feeding mouth for extruding gap with extruder head connects
Logical, die cap is connected on extruder head by securing member, and the mould also includes hollow filament-perforating needle, and the filament-perforating needle one end is worn
Cross the insertion mesopore of core rod and stretch out outside die cap, and the filament-perforating needle other end is then threaded connection fixture, fixture is assembled in
On extruder head；The fixture is provided with air admission hole.
The filament-perforating needle segment design, with construction section and extension, extension is pipe structure, by tight fit axial direction
It is socketed on construction section, construction section is provided with external screw thread, the external screw thread is threadeded with the internal thread hole on fixture.
The inner periphery of the nozzle of the core rod has uniformly a plurality of groove.
On the fixture, also group is provided with the overvoltage protection valve of protection air inlet air pressure.
When the mould that the present invention is provided is implemented, successively core rod, die cap, fixture are mounted in extruder head, wear
Silk pin is coordinated with fixture using screw thread, is sequentially passed through fixture, core rod and is stretched out outside die cap and in horizontality, by rotation
Turn one end of the nearly screw thread of filament-perforating needle, can adjust filament-perforating needle and the length of die cap is stretched out in OK range to which.In production, optical fiber is from wearing
Pass through in silk pin, make optical fiber be in the centre position of the high warm sleeve from head extrusion, it is to avoid to contact with casing wall, from fixture
The voltage stabilizing gas that is passed through of air admission hole continuously and stably blown out by the groove of core rod nozzle inner periphery, make from core rod and die cap
Between extrusion gap extrusion the plastic extrusion in high temperature fused state after keep that external diameter is stable, profile rounding, while relatively
The gas of low temperature can also accelerate the cooling of internal surface of sleeve pipe.From overvoltage protection valve is when the unstable gas being passed through, pressure are excessive
Protective effect so that sleeve outer will not be excessive or occurs rupturing.By adjusting water temperature, the traction of the cooling water of sleeve pipe production line
The technological parameter such as tension force and takeup tension, you can remaining length, uniform wall thickness, the dry sleeve of profile rounding are expected in production.Thus
It is unstable that in the sleeve pipe for effectively preventing prior art from easily occurring, long, the remaining length of excess fiber length is unstable, sleeve pipe becomes flat, casing size
Etc. phenomenon, it is ensured that the transmission performance of optical cable, mechanical and physical performance and temperature performance.
Further advantage of the present invention is simple structure, scientific and reasonable, and cost of investment is low, easily makes and assembles, and easy maintenance meets
Industry is utilized, and contributes to popularizing the production of dry fiber optic sleeve pipe.
Description of the drawings：
Accompanying drawing 1 is present pre-ferred embodiments structural representation；
Accompanying drawing 2 is the filament-perforating needle structural representation of Fig. 1 embodiment；
Accompanying drawing 3 is the mold insert structure schematic diagram of Fig. 1 embodiment；
Accompanying drawing 4 is the extrusion operation schematic diagram of Fig. 1 embodiment.
Specific embodiment：
The technique effect of the design, concrete structure and generation of the present invention is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Refering to shown in Fig. 1,2,3,4, the present invention is included and is assembled in extruder about a kind of dry sleeve production mould
Core rod 2 and die cap 3 on 1, core rod 2 with insertion mesopore 21 and nozzle 22, the extrusion of 22 periphery of nozzle and die cap 3
Extrusion gap 4 is formed, extrusion gap 4 is connected with the feeding mouth 11 of extruder head 1.Die cap 3 is connected to extrusion by securing member 31
On head 1, securing member 31 can be by the mode connecting extruder such as screw thread or screw head 1.The mould also includes hollow wearing
Silk pin 5,5 one end of filament-perforating needle pass through the insertion mesopore 21 of core rod 2 and stretch out outside die cap 3, and 5 other end of filament-perforating needle then passes through spiral shell
Line connection fixture 6, fixture 6 are assembled on extruder head 1；The fixture 6 is provided with air admission hole 61, and air admission hole 61 is passed through
Gas follow filament-perforating needle 5 through the insertion mesopore 21 of core rod 2 and blow out outside die cap 3.The present embodiment preferably, the filament-perforating needle
5 segment design, with construction section 51 and extension 52, extension 52 is pipe structure, is axially socketed in installation by tight fit
In section 51, and dock with the axis hole of construction section 51, to form the passage that walks for optical fiber.Construction section 51 is provided with external screw thread 511,
The external screw thread 511 is threadeded with the internal thread hole 62 on fixture 6.The inner periphery of the nozzle 22 of the core rod 2 has all
Even a plurality of groove 221, groove 221 walk direction extension along filament-perforating needle 5, meet air blowing demand.
When the mould that the present invention is provided is implemented, successively core rod 2, die cap 3, fixture 6 are mounted on extruder head 1
In, filament-perforating needle 5 is coordinated with fixture internal thread 62 using external screw thread 511, is sequentially passed through fixture 6, core rod 2 and is stretched out die cap 3
Outward and in horizontality, by rotating one end of the nearly screw thread of filament-perforating needle 5, adjustable filament-perforating needle 5 stretches out the length of die cap 3 to which
In OK range.In production, optical fiber 7 is passed through from filament-perforating needle 5, so that optical fiber 7 is in the high warm sleeve 8 that extrudes from head 1
Between position, it is to avoid contact with casing wall, the voltage stabilizing gas being passed through from the air admission hole 61 of fixture 6 is continuously and stably by core rod 2
The groove 221 of 22 inner periphery of nozzle blows out, make between core rod 2 and die cap 3 extrusion gap 4 extrude in high-temperature fusion
Keep after the plastic extrusion of state that external diameter is stable, profile rounding, while the gas of lower temperature can also accelerate the cold of 8 inwall of sleeve pipe
But.Overvoltage protection valve 63 is shielded when the unstable gas being passed through, pressure are excessive so that 8 external diameter of sleeve pipe will not be excessive
Or there is rupture.By adjusting the technological parameters such as water temperature, drawing tension and the takeup tension of the cooling water of sleeve pipe production line, you can
Remaining length, uniform wall thickness, the dry sleeve of profile rounding are expected in production.In the sleeve pipe for thus effectively preventing prior art from easily occurring
Long, the remaining length of excess fiber length is unstable, sleeve pipe becomes the phenomenons such as flat, casing size is unstable, it is ensured that the transmission performance of optical cable, machinery
Physical property and temperature performance.
Although the above-mentioned preferred embodiment for being described in conjunction with the accompanying the present invention, the present invention be not intended to be limited to with
On description and accompanying drawing identical structurally and operationally.To one skilled in the art, without departing from the present invention
Can also number of improvements could be made to above-described embodiment by logical analysis, reasoning, or a limited experiment in the case of spirit and scope
And change, but such modifications and variations should all belong to the scope of protection of present invention.
Claims (2)
1. dry sleeve production mould, includes and is assembled in extruder head（1）On core rod（2）And die cap（3）, core rod（2）
With insertion mesopore（21）And nozzle（22）, nozzle（22）Periphery and die cap（3）Extrusion formed extrusion gap（4）,
Extrusion gap（4）With extruder head（1）Feeding mouth（11）Connection, die cap（3）By securing member（31）It is connected to extruder head
（1）On, it is characterised in that：The mould also includes hollow filament-perforating needle（5）, the filament-perforating needle（5）One end passes through core rod（2）'s
Insertion mesopore（21）And stretch out die cap（3）Outward, filament-perforating needle（5）The other end is then threaded connection fixture（6）, fixture
（6）It is assembled in extruder head（1）On；The fixture（6）It is provided with air admission hole（61）, air admission hole（61）The gas being passed through is followed
Filament-perforating needle（5）Through core rod（2）Insertion mesopore（21）And blow out die cap（3）Outward；The core rod（2）Nozzle（22）Interior
Circumference has uniformly a plurality of groove（221）；The filament-perforating needle（5）Segment design, with construction section（51）And extension（52）,
Extension（52）For pipe structure, construction section is axially socketed in by tight fit（51）On, construction section（51）It is provided with external screw thread
（511）, the external screw thread（511）With fixture（6）On internal thread hole（62）Threaded, by rotating filament-perforating needle（5）Nearly spiral shell
One end of line, can adjust filament-perforating needle（5）Die cap is stretched out to which（3）Length.
2. dry sleeve production mould according to claim 1, it is characterised in that：The fixture（6）On also group set
There is the overvoltage protection valve of protection air inlet air pressure（63）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770292.7A CN104400982B (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770292.7A CN104400982B (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104400982A CN104400982A (en) | 2015-03-11 |
| CN104400982B true CN104400982B (en) | 2017-03-08 |
Family
ID=52638679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410770292.7A Active CN104400982B (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400982B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666835A (en) * | 2016-01-14 | 2016-06-15 | 南京华信藤仓光通信有限公司 | Dry optical fiber ribbon loose tube air blowing molding device |
| CN109159358A (en) * | 2016-06-30 | 2019-01-08 | 杭州富通通信技术股份有限公司 | Coating equipment for stealthy optical cable production technology |
| CN106249369A (en) * | 2016-10-31 | 2016-12-21 | 珠海汉胜科技股份有限公司 | The roundness control method of a kind of sleeve pipe and roundness control device |
| CN110355974A (en) * | 2018-04-08 | 2019-10-22 | 烽火通信科技股份有限公司 | A kind of molding equipment and moulding process of the cable jacket being embedded in rigidity reinforced element |
| CN109023567B (en) * | 2018-08-10 | 2021-02-19 | 浙江三星特种纺织股份有限公司 | Production equipment and process of PVC tubular membrane yarn |
| CN115125674B (en) * | 2022-07-22 | 2023-08-29 | 广东鑫球新材料科技有限公司 | Internal inserting hollow cotton mold and molding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346286A (en) * | 2011-11-21 | 2012-02-08 | 江苏江扬电缆有限公司 | Manufacturing method of full-dry optical cable loose tube |
| CN103331894A (en) * | 2013-07-04 | 2013-10-02 | 苏州市职业大学 | Dry-type fiber loose tube extrusion device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002192591A (en) * | 2000-12-26 | 2002-07-10 | Mitsubishi Cable Ind Ltd | Extrusion molding machine for optical cable |
| CN202241917U (en) * | 2011-09-22 | 2012-05-30 | 昆山市众捷塑料机械有限公司 | Micro-pipe mould |
| CN202922945U (en) * | 2012-11-19 | 2013-05-08 | 汕头高新区奥星光通信设备有限公司 | Central-tube-type auxiliary device for threading steel wires of extruding die of ribbon optical cable sheath |
| CN203752488U (en) * | 2014-03-25 | 2014-08-06 | 长飞光纤光缆股份有限公司 | Dry-type optical cable sheath fiber loose sleeve extrusion molding device |
| CN204296002U (en) * | 2014-12-15 | 2015-04-29 | 汕头高新区奥星光通信设备有限公司 | Dry sleeve production mould |
-
2014
- 2014-12-15 CN CN201410770292.7A patent/CN104400982B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346286A (en) * | 2011-11-21 | 2012-02-08 | 江苏江扬电缆有限公司 | Manufacturing method of full-dry optical cable loose tube |
| CN103331894A (en) * | 2013-07-04 | 2013-10-02 | 苏州市职业大学 | Dry-type fiber loose tube extrusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104400982A (en) | 2015-03-11 |
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| C14 | Grant of patent or utility model | ||
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