CN204288961U - A kind of extrusion die for electric wire - Google Patents
A kind of extrusion die for electric wire Download PDFInfo
- Publication number
- CN204288961U CN204288961U CN201420796987.8U CN201420796987U CN204288961U CN 204288961 U CN204288961 U CN 204288961U CN 201420796987 U CN201420796987 U CN 201420796987U CN 204288961 U CN204288961 U CN 204288961U
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- core rod
- mouth
- rod mouth
- internal mold
- quincunx
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Abstract
The utility model relates to a kind of extrusion die for electric wire, it is characterized in that: described extrusion die is formed by connecting by internal mold and external mold, and one end of internal mold is provided with core rod mouth, and one end of external mold is provided with the outer die orifice corresponding with core rod mouth.During use, internal mold is provided with core rod mouth, core rod mouth is made up of two parts, front portion is quincunx mould mouth, rear portion is circular flow channel, twice extruded stock flowing pressure abatement can be carried out, first time cuts down stream and carries out on core rod mouth through die head, second time abatement and the quincunx pressure extruded when can reduce the joint filling of coated insulation core, extrude quincunx stream and any pressure is extruded to parallel coated need not the carrying out again of cable core, do not need during making to add any interleaving agent, not only reduce manufacturing cost, directly zero is reduced on the impact of environment, indirectly insulation and sheath material be not by the useful life of the corrosion extending wire cable of interleaving agent.
Description
Technical field
The utility model relates to the technical field that electric wire manufactures, specifically a kind of extrusion die for electric wire.
Background technology
At present, China is in from equipment big country to equipment power retrofitting process, the use total amount of recent five years equipment electric wire has more than 30% speed increase every year according to statistics, and how present stage improves the quality of equipment electric wire and facilitate installation to be the important topic of pendulum in face of cables manufacturing enterprise.The main mould adopting two profiles formula of present stage cable industry production, namely circularly insulation or sheath is produced without holding footpath plsitive mold or holding footpath tubular molding tool, tubular molding tool extrusion plastic Rotating fields compactness and the poor and product appearance not rounding with the compactness of insulated combination.The plastic layer compact structure that plsitive mold is extruded and with the compactness of insulation better and outward appearance rounding, but have when wiring construction or machinery stripping head are installed that paper insulation and sheath adhesion can not peelings.This type of cable of domestic production in recent years, the adhesion phenomenon that interleaving agent solves insulation and sheath is done nothing more than using talcum powder or phenyl silicone oil, not only severe contamination is caused to environment like this, affecting by interleaving agent makes production efficiency reduce by more than 50%, adds due to interleaving agent the useful life making cable insulation and sheath accelerated ageing shorten product.
Summary of the invention
The purpose of this utility model is the extrusion die for electric wire providing a kind of improvement, and it can overcome the poor and product appearance not rounding of mould extrusion plastic layer compactness in prior art, the some shortcomings that useful life of product is short.
To achieve these goals, the technical solution of the utility model is: a kind of extrusion die for electric wire, it is characterized in that: described extrusion die is formed by connecting by internal mold and external mold, one end of internal mold is provided with core rod mouth, and one end of external mold is provided with the outer die orifice corresponding with core rod mouth.
During use, internal mold is provided with core rod mouth, core rod mouth is made up of two parts, front portion is quincunx mould mouth, rear portion is circular flow channel, twice extruded stock flowing pressure abatement can be carried out, first time cuts down stream and carries out on core rod mouth through die head, second time abatement and the quincunx pressure extruded when can reduce the joint filling of coated insulation core, extrude quincunx stream and any pressure is extruded to parallel coated need not the carrying out again of cable core, do not need during making to add any interleaving agent, not only reduce manufacturing cost, directly zero is reduced on the impact of environment, indirectly insulation and sheath material be not by the useful life of the corrosion extending wire cable of interleaving agent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural representation of the utility model core rod mouth.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
The label of each accompanying drawing is expressed as follows: 1 internal mold, 2 external molds, 3 core rod mouths, 4 extrusion molding runners, 5 outer die orifices, 6 insulation core wires.
A kind of extrusion die for electric wire described in the utility model, its difference with the prior art is: described extrusion die is formed by connecting by internal mold and external mold, one end of internal mold is provided with core rod mouth, and one end of external mold is provided with the outer die orifice corresponding with core rod mouth.One end of internal mold is coniform, is provided with the cavity matched with internal mold shape in external mold, and the cone shape end of internal mold is provided with core rod mouth, and outer die orifice is rounded.Outer die orifice place is provided with extrusion molding runner, and the length of extrusion molding runner is 1-4cm, and the spacing between extrusion molding runner and core rod mouth is 2-5mm.Core rod mouth is made up of two parts, and front portion is quincunx mould mouth, and rear portion is circular flow channel, and the length of quincunx mould mouth is 1-4cm, and the length of circular flow channel is 2-15cm.
In enforcement, the cutting of core rod mouth increases 0.15mm according to Product Process external diameter and determines mould nozzle aperture footpath, core rod mouth wall thickness is defined as 0.80-1.00mm and controls, and the mould mouth fit tolerance processed, to be 0 ~-0.015mm carry out heat with core rod inlays, and processes the deburring of acute angle passivation everywhere process.
Internal mold is provided with core rod mouth, core rod mouth is made up of two parts, front portion is quincunx mould mouth, rear portion is circular flow channel, twice extruded stock flowing pressure abatement can be carried out, first time, abatement stream carried out on core rod mouth through die head, second time abatement and the quincunx pressure extruded when can reduce the joint filling of coated insulation core, extruded quincunx stream and anyly extruded pressure to parallel coated need not the carrying out again of cable core.Energy-conserving and environment-protective performance is given prominence to, change talcum powder when in the past manufacturing this type of electric wire or silicone oil cooks interleaving agent, do not need to add any interleaving agent after now optimizing mould, not only reduce manufacturing cost, directly be reduced to zero to the impact of environment, indirectly insulation and sheath material be not by the useful life of the corrosion extending wire cable of interleaving agent.
Simultaneously applied widely, applicable 50 squares, 2 ~ 7 core and following electric wire extrude joint filling sheath.High finished product also very high rate, the utility model does not use interleaving agent thus avoids, because of too much or very few phenomenon, avoiding because interleaving agent improper use causes waste.When producing, interleaving agent too much causes stifled mould product to break to scrap in the past, and very few insulation and the easy adhesion of sheath cause the product serious waste such as defective in batches.Production efficiency is higher, and because not disturbing by interleaving agent destabilizing factor, production efficiency is the twice of the existing mode of production.
Claims (4)
1. for an extrusion die for electric wire, it is characterized in that: described extrusion die is formed by connecting by internal mold and external mold, one end of internal mold is provided with core rod mouth, and one end of external mold is provided with the outer die orifice corresponding with core rod mouth.
2. a kind of extrusion die for electric wire according to claim 1, it is characterized in that: one end of internal mold is coniform, is provided with the cavity matched with internal mold shape in external mold, the cone shape end of internal mold is provided with core rod mouth, and outer die orifice is rounded.
3. a kind of extrusion die for electric wire according to claim 1, is characterized in that: outer die orifice place is provided with extrusion molding runner, the length of extrusion molding runner is 1-4cm, and the spacing between extrusion molding runner and core rod mouth is 2-5mm.
4. a kind of extrusion die for electric wire according to claim 1, is characterized in that: core rod mouth is made up of two parts, and front portion is quincunx mould mouth, and rear portion is circular flow channel, and the length of quincunx mould mouth is 1-4cm, and the length of circular flow channel is 2-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796987.8U CN204288961U (en) | 2014-12-17 | 2014-12-17 | A kind of extrusion die for electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796987.8U CN204288961U (en) | 2014-12-17 | 2014-12-17 | A kind of extrusion die for electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204288961U true CN204288961U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420796987.8U Active CN204288961U (en) | 2014-12-17 | 2014-12-17 | A kind of extrusion die for electric wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN204288961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021824A (en) * | 2021-02-26 | 2021-06-25 | 重庆鸽牌电线电缆有限公司 | Production method of gas-shielded flame-retardant cable |
-
2014
- 2014-12-17 CN CN201420796987.8U patent/CN204288961U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021824A (en) * | 2021-02-26 | 2021-06-25 | 重庆鸽牌电线电缆有限公司 | Production method of gas-shielded flame-retardant cable |
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