CN104400982A - Dry-type mold for sleeve production - Google Patents
Dry-type mold for sleeve production Download PDFInfo
- Publication number
- CN104400982A CN104400982A CN201410770292.7A CN201410770292A CN104400982A CN 104400982 A CN104400982 A CN 104400982A CN 201410770292 A CN201410770292 A CN 201410770292A CN 104400982 A CN104400982 A CN 104400982A
- Authority
- CN
- China
- Prior art keywords
- filament
- sleeve
- core rod
- extruder head
- fixture
- 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
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
Abstract
The invention relates to the technical field of optical fiber and optical cable manufacturing equipment, in particular to a dry-type mold for sleeve production. The mold comprises a mold core, mold cover and a hollow silk threading needle which are assembled on an extruder head, wherein the mold core is provided with a middle through hole and an extruding nozzle, and an extruding gap is formed between the periphery of the extruding nozzle and an extruding opening of the mold cover; one end of the silk threading needle penetrates through the middle through hole of the mold core and extends out of the mold cover, the other end of the silk threading needle is connected with a fixing element through threads, and the fixing element is assembled on the extruder head and is provided with a gas inlet hole. Stabilized gas introduced from the gas inlet hole of the fixing element is continuously and steadily blown out of the extruding nozzle of the mold core, so that after the plastic is extruded and is at a high temperature melting state, the extruded plastic remains a steady outer diameter and a rounded shape, besides, gas with a lower temperature can also accelerate the cooling of the inner wall of the sleeve and effectively avoid the phenomena that the excess length of fibers in the sleeve is too long, the excess length is not steady, the sleeve becomes flat, and the size of the sleeve is not steady, and the transmission property, the mechanical and physical properties and the temperature property of the optical cable are ensured.
Description
Technical field
The present invention relates to optical fiber cable manufacturing equipment technical field, especially relate 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 object of the invention is to the defect overcoming prior art, provide a kind of dry sleeve production mould, 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 present invention 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 mould provided by the invention 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.
Further advantage of the present invention 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 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;
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 invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Consult shown in Fig. 1,2,3,4, the present invention 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 mould provided by the invention 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 invention by reference to the accompanying drawings above-mentioned, the present invention 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 design of the present invention and scope by logical analysis, reasoning, or a limited experiment, but these improve and change all should belong to the scope of protection of present invention.
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 |
|---|---|---|---|
| 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 true CN104400982A (en) | 2015-03-11 |
| CN104400982B 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) |
Cited By (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 |
| CN106182575A (en) * | 2016-06-30 | 2016-12-07 | 杭州富通通信技术股份有限公司 | Stealthy optical cable production technology and coating equipment |
| 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 |
| CN109023567A (en) * | 2018-08-10 | 2018-12-18 | 浙江三星特种纺织股份有限公司 | A kind of production equipment and process of pvc pipe type film wire |
| WO2019196408A1 (en) * | 2018-04-08 | 2019-10-17 | 烽火通信科技股份有限公司 | Forming device and forming process for optical cable sheath of embedded rigid reinforced element |
| CN115125674A (en) * | 2022-07-22 | 2022-09-30 | 广东鑫球新材料科技有限公司 | Internal inserting type hollow cotton die and forming method |
Citations (7)
| 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 |
| 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 |
| 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 |
| CN103331894A (en) * | 2013-07-04 | 2013-10-02 | 苏州市职业大学 | Dry-type fiber loose tube extrusion device |
| 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 (7)
| 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 |
| 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 |
| 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 |
| CN103331894A (en) * | 2013-07-04 | 2013-10-02 | 苏州市职业大学 | Dry-type fiber loose tube extrusion device |
| 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 |
Cited By (10)
| 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 |
| CN106182575A (en) * | 2016-06-30 | 2016-12-07 | 杭州富通通信技术股份有限公司 | Stealthy optical cable production technology and coating equipment |
| CN106182575B (en) * | 2016-06-30 | 2018-11-30 | 杭州富通通信技术股份有限公司 | 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 |
| WO2019196408A1 (en) * | 2018-04-08 | 2019-10-17 | 烽火通信科技股份有限公司 | Forming device and forming process for optical cable sheath of embedded rigid reinforced element |
| 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 |
| CN109023567A (en) * | 2018-08-10 | 2018-12-18 | 浙江三星特种纺织股份有限公司 | A kind of production equipment and process of pvc pipe type film wire |
| 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 |
| CN115125674A (en) * | 2022-07-22 | 2022-09-30 | 广东鑫球新材料科技有限公司 | Internal inserting type hollow cotton die and forming method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104400982B (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104400982A (en) | Dry-type mold for sleeve production | |
| CN103331894B (en) | Dry-type fiber loose tube extrusion device | |
| CN204354448U (en) | Electric wire oversheath squeezes the mould structure covered | |
| CN204296002U (en) | Dry sleeve production mould | |
| CN104494100A (en) | Extruder head | |
| CN204295999U (en) | A kind of indoor cable sheath production mould | |
| CN203472122U (en) | Dry-type optical fiber loose tube extrusion device | |
| CN103171110A (en) | Optical fiber extra length stable control device in optical cable loose tube | |
| CN104626506A (en) | Mould for producing indoor cable sheath | |
| CN204651101U (en) | The nonmetal band longitudinal tubing mould of a kind of optical cable | |
| CN202067004U (en) | Self-centering mold of optical cable sheath plastic extruding machine | |
| CN109693359A (en) | Full-dry optical cable loose tube production technology and its molding machine | |
| CN204701112U (en) | A kind of brand-new integral type no-mould adjusted tool | |
| CN102280216B (en) | Cable mold | |
| CN101635192B (en) | Double-color wire cable jacket extrusion mold | |
| CN206450876U (en) | A kind of vitta of 8 shaped optical cable three extrusion die sleeve | |
| CN203210660U (en) | Mould for manufacturing cable with simple structure | |
| CN104552874A (en) | Splayed flat sheath extrusion die | |
| CN209580443U (en) | A kind of miniature blowning installation | |
| CN201970461U (en) | Tube-drawing type extruding mold with super thickness | |
| CN205969881U (en) | Mould of control ADSS fiber cable jacket and cable core elasticity degree | |
| CN102814960A (en) | Adjusting-free type extrusion machine head | |
| CN205751700U (en) | A kind of band blank pipe jacket mould | |
| CN206501406U (en) | It is a kind of produce Teflon electric wire exempt from adjust head | |
| CN206840663U (en) | A kind of electric wire extruder of improvement external mold block set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |