CN204296002U - Dry sleeve production mould - Google Patents
Dry sleeve production mould Download PDFInfo
- Publication number
- CN204296002U CN204296002U CN201420789949.XU CN201420789949U CN204296002U CN 204296002 U CN204296002 U CN 204296002U CN 201420789949 U CN201420789949 U CN 201420789949U CN 204296002 U CN204296002 U CN 204296002U
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- CN
- China
- Prior art keywords
- core rod
- filament
- fixture
- perforating needle
- 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.)
- Expired - Fee Related
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- Light Guides In General And Applications Therefor (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to optical fiber cable manufacturing equipment technical field, especially dry sleeve production mould is related to, include the filament-perforating needle of the core rod be assembled on extruder head, die cap and hollow, core rod has through mesopore and nozzle, the extrusion of nozzle periphery and die cap is formed extrudes gap, filament-perforating needle one end through core rod through mesopore and stretch out outside die cap, the filament-perforating needle other end is then threaded connection fixture, and fixture to be assembled on extruder head and to be provided with air admission hole.The voltage stabilizing gas that the utility model passes into from the air admission hole of fixture is blown out by core rod nozzle continuously and stably, make to extrude be in the plastic extrusion of high temperature fused state after keep that external diameter is stable, profile rounding, 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, sleeve pipe change is flat, casing size is unstable simultaneously, ensures the transmission performance of optical cable, mechanical and physical performance and temperature performance.
Description
Technical field
The utility model relates to optical fiber cable manufacturing equipment technical field, especially relates to a kind of dry sleeve production mould.
Background technology
During present optical cable is produced, the method that ferrule production technology all adopts fine cream to fill, because fine cream is a kind of pasty mass, produces optical cable and uses and all bring clean trouble.Now along with intelligent acess is to the rise at family, common requirements clean environment firendly in optical cable Access Network, the convenience that continues, the optical cable that weight is light again, dry fiber optic cables is a kind of ideal chose.But due to the lubrication that lacks ointment in sleeve pipe and isolation, optical fiber easily contacts with the casing wall of the condition of high temperature, cause remaining long long and remaining long unstable, directly affect transmission performance and the temperature performance of optical cable; On the other hand, owing to having lacked the filling of ointment to space in sleeve pipe, easily occur that sleeve pipe becomes flat and causes casing size unstable, thus affected the performance of optical cable further.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of dry sleeve production mould, and structure is simple, and easily implement, gained sleeve pipe rounding, uniform wall thickness, excess fiber length is stablized controlled.
For achieving the above object, the utility model adopts following technical scheme:
Dry sleeve production mould, include and be assembled in core rod on extruder head and die cap, core rod has through mesopore and nozzle, the extrusion of nozzle periphery and die cap is formed extrudes gap, extrude gap to be communicated with the feeding mouth of extruder head, die cap is connected on extruder head by securing member, described mould also includes the filament-perforating needle of hollow, this filament-perforating needle one end is passed the through mesopore of core rod and is stretched out outside die cap, the filament-perforating needle other end is then threaded connection fixture, and fixture is assembled on extruder head; Described fixture is provided with air admission hole.
Described filament-perforating needle segment design, has construction section and extension, and extension is pipe structure, and be axially socketed on construction section by tight fit, construction section is provided with external screw thread, and this external screw thread is threaded with the internal thread hole on fixture.
The inner periphery of the nozzle of described core rod has many grooves uniformly.
On described fixture, also group is provided with the overvoltage protection valve of protection air inlet air pressure.
When the mould that the utility model provides is implemented, successively core rod, die cap, fixture are mounted in extruder head, filament-perforating needle utilizes screw thread to coordinate with fixture, successively through fixture, core rod to stretch out die cap outer and be in level, by rotating one end of filament-perforating needle nearly screw thread, adjustable filament-perforating needle to its length of stretching out die cap at OK range.In production, optical fiber passes from filament-perforating needle, optical fiber is made to be in the centre position of the high warm sleeve extruded from head, avoid contacting with casing wall, the voltage stabilizing gas passed into from the air admission hole of fixture is blown out by the groove of core rod nozzle inner periphery continuously and stably, make between core rod and die cap extrude that gap extrudes be in the plastic extrusion of high temperature fused state after keep that external diameter is stable, profile rounding, the gas of lower temperature can also accelerate the cooling of internal surface of sleeve pipe simultaneously.Overvoltage protection valve shields time excessive at the unstable gas passed into, pressure, makes sleeve outer can not be excessive or occur breaking.By technological parameters such as the water temperature of the cooling water of adjustment sleeve pipe production line, drawing tension and takeup tensions, the dry sleeve expecting remaining length, uniform wall thickness, profile rounding can be produced.The phenomenons such as in the sleeve pipe so just effectively preventing prior art from easily occurring, long, the remaining length of excess fiber length is unstable, sleeve pipe change is flat, casing size is unstable, ensure the transmission performance of optical cable, mechanical and physical performance and temperature performance.
A utility model again advantage is that structure is simple, and scientific and reasonable, cost of investment is low, easily makes assembling, easy maintenance, meets industry and utilizes, and contributes to universal dry fiber optic sleeve pipe and produces.
accompanying drawing illustrates:
Accompanying drawing 1 is the utility model preferred embodiment 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;
What accompanying drawing 4 was Fig. 1 embodiment extrudes operation schematic diagram.
detailed description of the invention:
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
Consult shown in Fig. 1,2,3,4, the utility model is about a kind of dry sleeve production mould, include and be assembled in core rod 2 on extruder head 1 and die cap 3, core rod 2 has through mesopore 21 and nozzle 22, the extrusion of nozzle 22 periphery and die cap 3 is formed extrudes gap 4, extrudes gap 4 and is communicated with the feeding mouth 11 of extruder head 1.Die cap 3 is connected on extruder head 1 by securing member 31, and securing member 31 is by the mode such as screw thread or screw connecting extruder head 1.Described mould also includes the filament-perforating needle 5 of hollow, and this filament-perforating needle 5 one end is passed the through mesopore 21 of core rod 2 and stretched out outside die cap 3, and filament-perforating needle 5 other end is then threaded connection fixture 6, and fixture 6 is assembled on extruder head 1; Described fixture 6 is provided with air admission hole 61, and the gas that air admission hole 61 passes into is followed filament-perforating needle 5 and passed the through mesopore 21 of core rod 2 and blow out outside die cap 3.Preferably, described filament-perforating needle 5 segment design, has construction section 51 and extension 52 to the present embodiment, and extension 52 is pipe structure, is axially socketed on construction section 51, and docks with the axis hole of construction section 51 by tight fit, to form the passage of walking for optical fiber.Construction section 51 is provided with external screw thread 511, and this external screw thread 511 is threaded with the internal thread hole 62 on fixture 6.The inner periphery of the nozzle 22 of described core rod 2 has many grooves 221 uniformly, and groove 221 is walked direction along filament-perforating needle 5 and extended, and meets air blowing demand.
When the mould that the utility model provides is implemented, successively core rod 2, die cap 3, fixture 6 are mounted in extruder head 1, filament-perforating needle 5 utilizes external screw thread 511 to coordinate with fixture internal thread 62, successively through fixture 6, core rod 2 to stretch out die cap 3 outer and be in level, by rotating one end of the nearly screw thread of filament-perforating needle 5, adjustable filament-perforating needle 5 to its length of stretching out die cap 3 at OK range.In production, optical fiber 7 passes from filament-perforating needle 5, optical fiber 7 is made to be in the centre position of the high warm sleeve 8 extruded from head 1, avoid contacting with casing wall, the voltage stabilizing gas passed into from the air admission hole 61 of fixture 6 is blown out by the groove 221 of core rod 2 nozzle 22 inner periphery continuously and stably, make between core rod 2 and die cap 3 extrude that gap 4 extrudes be in the plastic extrusion of high temperature fused state after keep that external diameter is stable, profile rounding, the gas of lower temperature can also accelerate the cooling of sleeve pipe 8 inwall simultaneously.Overvoltage protection valve 63 shields time excessive at the unstable gas passed into, pressure, makes sleeve pipe 8 external diameter can not be excessive or occur breaking.By technological parameters such as the water temperature of the cooling water of adjustment sleeve pipe production line, drawing tension and takeup tensions, the dry sleeve expecting remaining length, uniform wall thickness, profile rounding can be produced.The phenomenons such as in the sleeve pipe so just effectively preventing prior art from easily occurring, long, the remaining length of excess fiber length is unstable, sleeve pipe change is flat, casing size is unstable, ensure the transmission performance of optical cable, mechanical and physical performance and temperature performance.
Although describe preferred embodiment of the present utility model by reference to the accompanying drawings above-mentioned, the utility model should not be restricted to and above description and the identical structure of accompanying drawing and operation.Concerning those skilled in the art; also can make many improvement and change to above-described embodiment when not exceeding the utility model design and scope by logical analysis, reasoning, or a limited experiment, but these improve and change all should belong to the claimed scope of the utility model.
Claims (4)
1. dry sleeve production mould, include and be assembled in core rod (2) on extruder head (1) and die cap (3), core rod (2) has through mesopore (21) and nozzle (22), the extrusion of nozzle (22) periphery and die cap (3) is formed extrudes gap (4), extrude gap (4) to be communicated with the feeding mouth (11) of extruder head (1), die cap (3) is connected on extruder head (1) by securing member (31), it is characterized in that: described mould also includes the filament-perforating needle (5) of hollow, this filament-perforating needle (5) one end is passed the through mesopore (21) of core rod (2) and is stretched out die cap (3) outward, filament-perforating needle (5) other end is then threaded connection fixture (6), fixture (6) is assembled on extruder head (1), described fixture (6) is provided with air admission hole (61), and the gas that air admission hole (61) passes into is followed filament-perforating needle (5) through the through mesopore (21) of core rod (2) and blown out die cap (3) outward.
2. dry sleeve production mould according to claim 1, it is characterized in that: described filament-perforating needle (5) segment design, there are construction section (51) and extension (52), extension (52) is pipe structure, axially be socketed on construction section (51) by tight fit, construction section (51) is provided with external screw thread (511), and this external screw thread (511) is threaded with the internal thread hole (62) on fixture (6).
3. dry sleeve production mould according to claim 1, is characterized in that: the inner periphery of the nozzle (22) of described core rod (2) has many grooves (221) uniformly.
4. dry sleeve production mould according to claim 1, is characterized in that: on described fixture (6), also group is provided with the overvoltage protection valve (63) of protection air inlet air pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789949.XU CN204296002U (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789949.XU CN204296002U (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296002U true CN204296002U (en) | 2015-04-29 |
Family
ID=53101580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789949.XU Expired - Fee Related CN204296002U (en) | 2014-12-15 | 2014-12-15 | Dry sleeve production mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204296002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400982A (en) * | 2014-12-15 | 2015-03-11 | 汕头高新区奥星光通信设备有限公司 | Dry-type mold for sleeve production |
| CN113640930A (en) * | 2021-08-17 | 2021-11-12 | 中国电力科学研究院有限公司 | OPGW optical cable sensing optical fiber optical unit and manufacturing method thereof and optical cable |
-
2014
- 2014-12-15 CN CN201420789949.XU patent/CN204296002U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400982A (en) * | 2014-12-15 | 2015-03-11 | 汕头高新区奥星光通信设备有限公司 | Dry-type mold for sleeve production |
| CN113640930A (en) * | 2021-08-17 | 2021-11-12 | 中国电力科学研究院有限公司 | OPGW optical cable sensing optical fiber optical unit and manufacturing method thereof and optical cable |
| CN113640930B (en) * | 2021-08-17 | 2023-10-13 | 中国电力科学研究院有限公司 | OPGW optical cable sensing optical fiber optical unit, manufacturing method thereof and optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |