CN104626506A - Mould for producing indoor cable sheath - Google Patents
Mould for producing indoor cable sheath Download PDFInfo
- Publication number
- CN104626506A CN104626506A CN201410774790.9A CN201410774790A CN104626506A CN 104626506 A CN104626506 A CN 104626506A CN 201410774790 A CN201410774790 A CN 201410774790A CN 104626506 A CN104626506 A CN 104626506A
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- China
- Prior art keywords
- cable core
- mould
- cable
- conduit
- extruder head
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- 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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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of optical fiber cable manufacturing equipment, and in particular relates to a mould for producing an indoor cable sheath. The mould comprises a mould core and a mould cover which are assembled on an extruder head, wherein the mould core is provided with a through center hole and an extrusion nozzle, an extrusion gap is formed by the periphery of the extrusion nozzle and an extrusion opening of the mould cover, and the mould cover is connected to the extruder head through a fastener. The mould also comprises a hollow cable core conduit, wherein one end of the cable core conduit passes through the through center hole of the mould core and extends out of the mould cover, the other end of the cable core conduit is connected with a fixing part via threads, and the fixing part is assembled on the extruder head; and through holes are formed in the circumference of one end, which extends out of the mould cover, of the cable core conduit, and are communicated with a guide hole in the middle of the cable core conduit. In the production of the mould provided by the invention, due to the through holes in the wall of the cable core conduit, the stable pressure is formed in a cable core entering the extruder head, so that extruded plastic cannot be clung to the cable core due to the produced negative pressure, and the peeling performance of the sheath and the temperature performance of an optical fiber cable are effectively prevented from being affected by the adhesion of the cable core and the sheath.
Description
Technical field
The present invention relates to optical fiber cable manufacturing equipment technical field, especially relate to a kind of indoor cable sheath production mould.
Background technology
Indoor optical cable, due to the difference of use occasion and using method, there is numerous version, wherein a class formation is the type without band between cable core and sheath, this kind of structure optical cable, easily there is sheath and the phenomenon of core member phase adhesion by the sheath production technology of routine, affect temperature performance and the workability of optical cable, cause product qualified rate low.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide a kind of indoor cable sheath production mould, structure is simple, easy enforcement, gained sheath rounding, uniform wall thickness, solve core member and sheath adhesion problems, product temperature performance is good, and product qualified rate is high.
For achieving the above object, the present invention adopts following technical scheme:
A kind of indoor cable sheath 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 charging aperture of extruder head, die cap is connected on extruder head by securing member, described mould also includes the cable core conduit of hollow, this cable core tube at one end passes the through mesopore of core rod and stretches out outside die cap, the cable core conduit other end is then threaded connection fixture, and fixture is assembled on extruder head; One end circumference stretching out die cap of described cable core conduit is provided with through hole, and through hole is communicated with the middle guide hole of cable core conduit.
Such scheme is further: described cable core conduit sections design, and have construction section and extension, extension is pipe structure, axially be socketed on construction section by tight fit, and dock with the axis hole of construction section, to form the passage of walking for cable core, through hole is arranged on the end of extension; Described construction section is provided with external screw thread and the first groove, and this external screw thread is threaded with the internal thread hole on fixture, and the first groove is communicated with the through mesopore of core rod; The inner periphery of the nozzle of described core rod has many second grooves uniformly.
When mould provided by the invention is implemented, successively core rod, die cap, fixture are mounted in extruder head, cable core conduit utilizes screw thread and fixture threaded engagement, successively through fixture, core rod to stretch out die cap outer and be in level, by rotating one end of the nearly screw thread of cable core conduit, its other end of adjustable stretches out the length of die cap to OK range.In production, cable core passes extruder head from cable core conduit, through hole on cable core catheter wall makes to have stable pressure in the cable core after entering extruder head, make the plastics extruded can not be adjacent to cable core because producing negative pressure, and cable core conduit stretches out the plastics of portion retards high temperature fused state and the contact of cable core of die cap, effectively prevents cable core and sheath from sticking together and affecting the temperature performance of sheath stripping performance and optical cable.Simultaneously, on second groove of supravasal first groove of cable core and core rod nozzle and cable core conduit, through hole circumferentially communicates with outside air, maintain air pressure balance, the gas preventing cable core from bringing into too much causes sheath play bag or break, and ensures to extrude rear sheath rounding, external diameter is stablized.
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 the cable jacket surface quality of production is better, and uniform wall thickness is adjustable.
accompanying drawing illustrates:
Accompanying drawing 1 is present pre-ferred embodiments structural representation;
Accompanying drawing 2 is the cable core guide-tube structure schematic diagram of Fig. 1 embodiment;
Accompanying drawing 3 is the mold insert structure schematic diagram of Fig. 1 embodiment.
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, the present invention is about a kind of indoor cable sheath 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 charging aperture 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 cable core conduit 5 of hollow, and this cable core conduit 5 one end is passed the through mesopore 21 of core rod 2 and stretched out outside die cap 3, and cable core conduit 5 other end is then threaded connection fixture 6, and fixture 6 is assembled on extruder head 1; One end circumference stretching out die cap 3 of described cable core conduit 5 is provided with through hole 521, and through hole 521 is communicated with the middle guide hole of cable core conduit 5.Cable core penetrates from one end of cable core conduit 5, pass from the other end, through hole 521 on cable core conduit 5 wall makes to have stable pressure in the cable core after entering extruder head 1, make the plastics extruded can not be adjacent to cable core because producing negative pressure, and cable core conduit 5 stretches out the plastics of portion retards high temperature fused state and the contact of cable core of die cap 3, effectively prevents cable core and sheath from sticking together and affecting the temperature performance of sheath stripping performance and optical cable.
Shown in Fig. 1,2,3, the further optimal design of the present invention is: by cable core conduit 5 segment design, has construction section 51 and extension 52, is convenient to processing and fabricating; 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, and to form the passage of walking for optical fiber, through hole 521 is arranged on the end of extension 52, is circumferentially uniformly distributed, and obtains effect of well giving vent to anger.Described construction section 51 is provided with external screw thread 511 and the first groove 512, this external screw thread 511 is threaded with the internal thread hole 61 on fixture 6, and the first groove 512 is communicated with the through mesopore 21 of core rod 2, the inner periphery of the nozzle 22 of core rod 2 has many second grooves 221 uniformly, second groove 221 is formed with the first groove 512 and is communicated with, maintain air pressure balance, the gas preventing cable core from bringing into too much causes sheath play bag or break, and ensures to extrude rear sheath rounding, external diameter is stablized.
When mould provided by the invention is implemented, successively core rod 2, die cap 3, fixture 6 are mounted in extruder head 1, cable core conduit 5 utilizes screw thread 511 to coordinate with fixture screw thread 61, 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 cable core conduit 5, its other end of adjustable stretches out the length of die cap 3 to OK range.In production, cable core passes extruder head 1 from cable core conduit 5, through hole 521 on cable core conduit 5 wall makes to have stable pressure in the cable core after entering extruder head 1, make the plastics extruded can not be adjacent to cable core because producing negative pressure, and cable core conduit 5 stretches out the plastics of portion retards high temperature fused state and the contact of cable core of die cap 3, effectively prevents cable core and sheath from sticking together and affecting the temperature performance of sheath stripping performance and optical cable.Simultaneously, on the first groove 512 on cable core conduit 5 and the second groove 221 of core rod nozzle 22 and cable core conduit 5, through hole 521 circumferentially communicates with outside air, maintain air pressure balance, the gas preventing cable core from bringing into too much causes sheath play bag or break, and ensures to extrude rear sheath rounding, external diameter is stablized.
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 (2)
1. an indoor cable sheath 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 charging aperture (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 cable core conduit (5) of hollow, this cable core conduit (5) one end is passed the through mesopore (21) of core rod (2) and is stretched out die cap (3) outward, cable core conduit (5) other end is then threaded connection fixture (6), fixture (6) is assembled on extruder head (1), one end circumference stretching out die cap (3) of described cable core conduit (5) is provided with through hole (521), and through hole (521) is communicated with the middle guide hole of cable core conduit (5).
2. one according to claim 1 indoor cable sheath production mould, it is characterized in that: described cable core conduit (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, and dock with the axis hole of construction section (51), to form the passage of walking for cable core, through hole (521) is arranged on extension (52) end; Described construction section (51) is provided with external screw thread (511) and the first groove (512), and this external screw thread (511) is threaded with the internal thread hole (61) on fixture (6), and the first groove (512) is communicated with the through mesopore (21) of core rod (2); The inner periphery of the nozzle (22) of described core rod (2) has many second grooves (221) uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774790.9A CN104626506A (en) | 2014-12-16 | 2014-12-16 | Mould for producing indoor cable sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774790.9A CN104626506A (en) | 2014-12-16 | 2014-12-16 | Mould for producing indoor cable sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104626506A true CN104626506A (en) | 2015-05-20 |
Family
ID=53205957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410774790.9A Pending CN104626506A (en) | 2014-12-16 | 2014-12-16 | Mould for producing indoor cable sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104626506A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765381A (en) * | 2017-10-17 | 2018-03-06 | 安徽电信器材贸易工业有限责任公司 | A kind of optical fiber extrusion 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 |
| CN112721083A (en) * | 2020-12-10 | 2021-04-30 | 安徽长荣光纤光缆科技有限公司 | Special optical cable extrusion die and use method thereof |
-
2014
- 2014-12-16 CN CN201410774790.9A patent/CN104626506A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765381A (en) * | 2017-10-17 | 2018-03-06 | 安徽电信器材贸易工业有限责任公司 | A kind of optical fiber extrusion 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 |
| CN112721083A (en) * | 2020-12-10 | 2021-04-30 | 安徽长荣光纤光缆科技有限公司 | Special optical cable extrusion die and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |