CN203366857U - Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer - Google Patents
Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer Download PDFInfo
- Publication number
- CN203366857U CN203366857U CN2013203374943U CN201320337494U CN203366857U CN 203366857 U CN203366857 U CN 203366857U CN 2013203374943 U CN2013203374943 U CN 2013203374943U CN 201320337494 U CN201320337494 U CN 201320337494U CN 203366857 U CN203366857 U CN 203366857U
- Authority
- CN
- China
- Prior art keywords
- core rod
- mold core
- lining sleeve
- neck bush
- wire cable
- 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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Abstract
The utility model relates to a replaceable mold core of a lining sleeve of a wire cable extrusion insulating layer and a sheath layer. The replaceable mold core mainly comprises an internal lining sleeve and a mold core. The internal lining sleeve and the mold core are concentric and are sleeved in the mold core without gaps. Advantages of the replaceable mold core are that quality requirements of extrusion thickness of the insulating or the sheath layer are ensured, and frequency of replacing molds is reduced so that production efficiency is enhanced and original material consumption is lowered.
Description
Technical field
The utility model relates to cable production labor dress, relates in particular to a kind of electric wire extruded insulation layer and the interchangeable core rod of restrictive coating lining.
Technical background
When producing large size copper insulating layer of conductor or steel-tape armouring outer jacket, the insulation after extruding and jacket surface often there will be the phenomenon that plasticizing is bad, contraction hole, bulge, leakage eye are arranged, and have affected quality and the performance of cable.
Through long-term observation, find, because the specification electric wire is heavier greatly, while before extruding, passing through mould, the bottom of metal level (conductor or steel band) can contact with core rod, metal temperature lower (especially in the winter time), will make core rod hold line place local temperature and descend, this just caused insulation and sheath material through core rod herein the time plasticization temperature inhomogeneous, the bottom extrusion temperature is too low.In order to address the above problem, once in head afterbody point of incoming cables, increased tugboat and stable mode, do not contact the core rod mouth to guarantee conductor, but this scheme inconvenience when producing, unstable and DeGrain.What have adds fixing neck bush in core rod, but, when producing close specification core and produce, will change core rod one time, has caused unnecessary waste.
The utility model content
The utility model provides a kind of electric wire extruded insulation layer and the interchangeable core rod of restrictive coating lining, has solved surperficial plasticizing bad and leak an eye phenomenon, when close specification core is produced, can be by not changing core rod, and only more the mode of resleeve is continuously, produce fast.
For realizing above purpose, by the following technical solutions:
A kind of electric wire extruded insulation layer and the interchangeable core rod of restrictive coating lining, it mainly comprises neck bush and core rod, it is characterized in that, neck bush is concentric and gapless being inserted in core rod with core rod.
The external diameter length d of described neck bush
2with electrical path length D in the core rod head, equate, lining lambda line district outer cone angle [alpha] equates with core rod lambda line angle beta.
The utility model advantage: assurance insulation or restrictive coating are extruded the thickness quality requirement, but also reduce the more frequency of mold exchange, have improved production efficiency, have reduced raw materials consumption.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the neck bush schematic diagram
Fig. 3 is the core rod schematic diagram
Neck bush as shown in the figure 1; 2, core rod.
Embodiment
Embodiment
As shown in Figure 1, the utility model mainly comprises neck bush (1) and core rod (2), neck bush (1) is concentric and gapless being inserted in core rod (2) with core rod (2), the outside dimension d2=core rod head internal diameter size D of neck bush (1), neck bush (1) lambda line district outer cone angle [alpha]=core rod lambda line angle beta.Neck bush (1) cable connecting area outside diameter d 1=d2-3mm, the total length of neck bush (1) is greater than core rod (2) bearing line area length L and is less than the total length of core rod (2), and a segment length of neck bush (1) is 1/3L, and stage casing is length 2/3L, rear length 10mm.
Claims (2)
1. an electric wire extruded insulation layer and the interchangeable core rod of restrictive coating lining, it mainly comprises neck bush (1) and core rod (2), it is characterized in that, neck bush is concentric and gapless being inserted in core rod with core rod.
2. a kind of electric wire extruded insulation layer according to claim 1 and the interchangeable core rod of restrictive coating lining, it is characterized in that, the outside dimension d2 of described neck bush equates with core rod head internal diameter size D, and lining lambda line district outer cone angle [alpha] equates with core rod lambda line angle beta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203374943U CN203366857U (en) | 2013-06-13 | 2013-06-13 | Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203374943U CN203366857U (en) | 2013-06-13 | 2013-06-13 | Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203366857U true CN203366857U (en) | 2013-12-25 |
Family
ID=49814586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203374943U Expired - Fee Related CN203366857U (en) | 2013-06-13 | 2013-06-13 | Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203366857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311586A (en) * | 2021-12-09 | 2022-04-12 | 通鼎互联信息股份有限公司 | Cable eccentricity-prevention extrusion mold core and eccentricity-prevention method |
-
2013
- 2013-06-13 CN CN2013203374943U patent/CN203366857U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311586A (en) * | 2021-12-09 | 2022-04-12 | 通鼎互联信息股份有限公司 | Cable eccentricity-prevention extrusion mold core and eccentricity-prevention method |
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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: 20131225 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |