CN202584949U - Electric wire double-layer extruding die - Google Patents
Electric wire double-layer extruding die Download PDFInfo
- Publication number
- CN202584949U CN202584949U CN 201220194117 CN201220194117U CN202584949U CN 202584949 U CN202584949 U CN 202584949U CN 201220194117 CN201220194117 CN 201220194117 CN 201220194117 U CN201220194117 U CN 201220194117U CN 202584949 U CN202584949 U CN 202584949U
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- China
- Prior art keywords
- sheath
- die
- die sleeve
- electric wire
- core
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- Expired - Fee Related
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Abstract
The utility model relates to an electric wire double-layer extruding die which comprises a die core and a die sleeve provided at an outer side of the die core. The electric wire double-layer extruding die is characterized in that an insulated paste flow channel is formed between the die core and the die sleeve, at least one sheath paste flow channel is provided on the die sleeve, a paste inlet of the sheath paste flow channel is provided on a side wall of the die sleeve, and a paste outlet is provided in a bottom portion of the die sleeve. According to the utility model, a conducting wire core is arranged and fixed inside the die core, an insulating layer is moulded through injection and extruded through the insulated paste flow channel formed between the die core and the die sleeve till the conducting wire core is shaped, a sheath layer is moulded through injection and extruded through the sheath paste flow channel provided on the die sleeve till an outer side of the insulating layer is shaped, the extruding time is saved, the extruded insulating layer and the sheath layer have compact structures and flat appearances, and no eccentric phenomenon occurs.
Description
Technical field
The utility model relates to a kind of preparation of electric wire, is specifically related to the double-deck extrusion die of a kind of electric wire.
Background technology
Electric wire is the conductor wire core outsourcing insulation and the restrictive coating of some, is used to realize a kind of circuit of signal of telecommunication transmission, and it is widely used in the information or circuit transmission of electric power system, the information transmission system and some plant equipment and instrument and meter system.Normal tubular molding tool electrogenesis in the next life line that adopts in the prior art; As shown in Figure 1; This tubular molding tool comprises core rod 10 and die sleeve 20, and die sleeve 20 is located at the outside of core rod 10, during production; Earlier conductor wire core 30 is fixed in the conductor extruding cavity 101 in the core rod, then annular hot flow path 102 conductive cores outside extruding injection moulding insulating barrier and restrictive coating through forming between die sleeve 20 and the core rod 10.After needing to be injected into the insulating barrier extruding on the conductor wire core earlier, this mould can carry out the outside of next step extruding injection moulding sheath to insulating barrier; Operation is loaded down with trivial details; Spended time is long; And need reorientate conductor wire core behind the extruding insulation layer, problems such as restrictive coating off-centre, restrictive coating appearance roundness is not good, tightness is not enough very easily occur.
The utility model content
To the deficiency of prior art, the utility model provides a kind of electric wire double-deck extrusion die, and insulating barrier and restrictive coating push injection moulding simultaneously, have practiced thrift growth time, and makes and push that the appearance roundness is good, structure is tight, is not prone to off-centre.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The double-deck extrusion die of electric wire; The die sleeve that comprises core rod and be located at this core rod outside; It is characterized in that form an insulating cement runner between said core rod and the die sleeve, die sleeve is provided with at least one sheath solation road; Wherein the glue-feeder in sheath solation road is located on the sidewall of die sleeve, and gum outlet is located at the bottom of die sleeve.
Preferably, said sheath solation road becomes L shaped.
Preferably; Saidly L shapedly comprise one along radially-arranged first a sheath solation road of die sleeve and second a sheath solation road along the die sleeve axial distribution; One end in one end in the said first sheath solation road and the second sheath solation road is communicated with; The other end in the first sheath solation road is a glue-feeder, and the other end of the second sheath glue is a gum outlet.
Preferably, the junction of the said first sheath glue and the second sheath glue is provided with arc-shaped structure.
The double-deck extrusion die of the electric wire that the utility model is set forth; Compared with prior art; Its beneficial effect is: the utility model is located at the internal fixation of core rod with conductor wire core, through the insulating cement runner injection moulding extruding insulation layer that forms between core rod and the die sleeve to the conductor wire core moulding, the outside moulding of sheath solation road injection moulding extruding restrictive coating to the insulating barrier that is provided with through die sleeve; Saved extrusion time; And insulating barrier of extruding and restrictive coating structure are tight, and appearance is smooth, eccentric phenomenon can not occur.
Description of drawings
Accompanying drawing 2 is the structural representation of the double-deck extrusion die of the utility model electric wire;
Accompanying drawing 3 is that the A of Fig. 2 is to structural representation.
Embodiment
Below, in conjunction with accompanying drawing and embodiment, the double-deck extrusion die of the electric wire of the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.
As shown in Figures 2 and 3, the double-deck extrusion die of electric wire, it comprises core rod 1 and the die sleeve 2 that is sheathed on this core rod 1 outside; Conductor wire core 3 is located in the core rod 1 conductor inside extruding cavity 11; Form the insulating cement runner 12 of annular between core rod 1 and the die sleeve 2, be used for extruding insulation glue to conductor wire core 3 outsides and form insulating barrier, insulating barrier is the chief component of electric wire; Be with the requirement of insulating cement according to conductor wire core withstand voltage degree; Be coated on the conductor wire core outside with different-thickness, make conductor wire core and other parts isolated, effect is to protect product to have good electric property.
Simultaneously; In order to save the production time; On die sleeve, be provided with at least one sheath solation road 21 (size and extruding force according to runner can be set to a plurality of), be used to push the outside formation restrictive coating of sheath glue to insulating barrier, restrictive coating is the insulating barrier of protection electric wire; Make insulating barrier exempt from the structure division that environmental factor corrodes, main effect is the mechanical strength that improves electric wire, moistureproof, the anti-water intrusion of anti-chemical burn into and the abilities such as shielding of electromagnetic interference to external world.The glue-feeder in sheath solation road 21 is arranged on the sidewall of columniform die sleeve 2, and its gum outlet is arranged at the bottom of die sleeve 2.In the utility model preferred embodiment; The 21 one-tenth L types in sheath solation road; Wherein the L type comprises along the radially-arranged first sheath solation road of die sleeve with along the second sheath solation road of die sleeve axial distribution; One end in one end in the first sheath solation road and the second sheath solation road is communicated with, and the other end in the first sheath solation road is a glue-feeder, and the other end of the second sheath glue is a gum outlet.Remaining in order to prevent sheath glue in the junction of the first sheath glue and the second sheath glue, can be designed to arc-shaped structure in the junction of the two.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.
Claims (4)
1. the double-deck extrusion die of electric wire; The die sleeve that comprises core rod and be located at this core rod outside; It is characterized in that form an insulating cement runner between said core rod and the die sleeve, die sleeve is provided with at least one sheath solation road; Wherein the glue-feeder in sheath solation road is located on the sidewall of die sleeve, and gum outlet is located at the bottom of die sleeve.
2. the double-deck extrusion die of electric wire according to claim 1 is characterized in that said sheath solation road becomes L shaped.
3. the double-deck extrusion die of electric wire according to claim 2; It is characterized in that; Saidly L shapedly comprise one along radially-arranged first a sheath solation road of die sleeve and second a sheath solation road along the die sleeve axial distribution; One end in one end in the said first sheath solation road and the second sheath solation road is communicated with, and the other end in the first sheath solation road is a glue-feeder, and the other end of the second sheath glue is a gum outlet.
4. the double-deck extrusion die of electric wire according to claim 3 is characterized in that the junction of the said first sheath glue and the second sheath glue is provided with arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194117 CN202584949U (en) | 2012-04-28 | 2012-04-28 | Electric wire double-layer extruding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194117 CN202584949U (en) | 2012-04-28 | 2012-04-28 | Electric wire double-layer extruding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584949U true CN202584949U (en) | 2012-12-05 |
Family
ID=47254336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220194117 Expired - Fee Related CN202584949U (en) | 2012-04-28 | 2012-04-28 | Electric wire double-layer extruding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584949U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378916A (en) * | 2016-08-31 | 2017-02-08 | 惠州市亚创域科技有限公司 | Vertical extrusion method for three-layer insulated wire |
| CN106782923A (en) * | 2016-12-26 | 2017-05-31 | 重庆渝丰电线电缆有限公司 | Electric cable compound insulation preparation method |
| CN109049610A (en) * | 2018-09-21 | 2018-12-21 | 江苏中利集团股份有限公司 | A kind of double-colored cable extrusion die |
-
2012
- 2012-04-28 CN CN 201220194117 patent/CN202584949U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378916A (en) * | 2016-08-31 | 2017-02-08 | 惠州市亚创域科技有限公司 | Vertical extrusion method for three-layer insulated wire |
| CN106782923A (en) * | 2016-12-26 | 2017-05-31 | 重庆渝丰电线电缆有限公司 | Electric cable compound insulation preparation method |
| CN106782923B (en) * | 2016-12-26 | 2019-06-28 | 重庆渝丰鑫新线缆科技有限公司 | Electric cable compound insulation preparation method |
| CN109049610A (en) * | 2018-09-21 | 2018-12-21 | 江苏中利集团股份有限公司 | A kind of double-colored cable extrusion die |
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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: 20121205 Termination date: 20160428 |