CN201518253U - Plastic wire and cable squeeze extrusion mold - Google Patents
Plastic wire and cable squeeze extrusion mold Download PDFInfo
- Publication number
- CN201518253U CN201518253U CN2009202412814U CN200920241281U CN201518253U CN 201518253 U CN201518253 U CN 201518253U CN 2009202412814 U CN2009202412814 U CN 2009202412814U CN 200920241281 U CN200920241281 U CN 200920241281U CN 201518253 U CN201518253 U CN 201518253U
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- cable
- core rod
- die sleeve
- sleeve
- die
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The utility model discloses a plastic wire and cable squeeze extrusion mold which comprises a mold core (1) and a mold sleeve (2) covered outside the mold core, wherein the mold sleeve (2) and the mold core (1) are matched through injection molding to extrude and shape. The extrusion mold is characterized in that a squeeze gap (3) is arranged between the mold sleeve (2) and the mold core (1). Plastic layers extruded by the mold have compact structure and flat surface, self-bearing type cables produced have excellent shaping effect, compact sheath and flat and attractive surface, the service life of products is improved, and the installation and maintenance are convenient.
Description
Technical field
The utility model belongs to the manufacturing production equipment field of 8 font self-bearing type electricity (light) cables, is specifically related to a kind of cable in plastics cable squash type extrusion die.
Background technology
Optical cable is that the cable heart of some is surrounded by sheath outward, the also coating outer jacket that has, in order to realize a kind of communication line of the light or signal of telecommunication transmission, be widely used in the information or the circuit transmission of electric power system, the information transmission system and some plant equipment, instrument and meter system etc.8 font self-bearing type electricity (light) cables generally have the self-supporting hoist cable, and the self-supporting hoist cable is steel strand wire, are in the same sheath with cable core, bear the own wt and the additional load of cable or optical cable after the installation.
Cable manufacturer custom adopts tubular molding tool as shown in Figure 1 to produce self-supporting cable in the prior art.This tubular molding tool comprises core rod 1 and die sleeve 2, and described die sleeve 2 is set on the core rod 1, and core rod had tubulose to hold footpath 13 parts when cable was extruded.Core rod mouth end face stretch out die sleeve mouth end face or with extruding that die sleeve mouth end face maintains an equal level, so be called crowded tubular type.Because the core rod tubulose holds the existence of footpath 13 parts, and making plastics is not directly to be pressed on the core, move forward but hold footpath 13 parts along tubulose when crowded tubular type is extruded, form tubulose earlier, then, drawn clads on the cable core and hoist cable of cable.
Because the structure of 8 font self-bearing type electricity (light) cables is different with typical circular structure electricity (light) cable, adopt tubular molding tool, pressure was little when plastics were extruded, and was prone to off-centre, " wryneck " phenomenon; The symmetry that is in particular in hoist cable and cable core is bad; It is not good to extrude the appearance roundness; The sheath tightness is poor; Hoist cable self reverses and causes construction of cable instability, the surface deflections distortion; The present invention comes therefrom.
Summary of the invention
The utility model purpose is to provide a kind of cable in plastics cable squash type extrusion die, has solved tubular molding tool in the prior art and has produced off-centre that 8 font self-bearing type electricity (light) cables produce, " wryneck " phenomenon problem such as quality instability.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of cable in plastics cable squash type extrusion die comprises core rod and the die sleeve that is set in the core rod outside, and described die sleeve cooperates the injection moulding extrusion modling with core rod, it is characterized in that between described die sleeve and core rod top clearance being set.
Preferably, the spacing range of described top clearance is at 3～5mm.
Preferably, described die sleeve comprises tapered sleeve portion and sizing portion, and described sizing portion is provided with the die sleeve that current supply cable hoist cable and cable core pass through and holds the footpath; Described core rod is arranged on die sleeve and holds footpath rear end and core rod and top clearance is set between holding directly with die sleeve.
Preferably, described core rod comprises the core rod body, on the described core rod body core rod hole is set, and the core rod bore in described core rod hole holds the die sleeve bore in footpath less than die sleeve.
Preferably, the tapered sleeve portion of described core rod body and die sleeve forms the feeding port of certain angle.
Novel " 8 " of the present invention font cable extrusion die mainly is to be used to produce self-support aerial cable, and this kind mould adopts the squash type design principle, has improved the molding effect of self-bearing type (" 8 " font) cable greatly, is easy to more lay and safeguard.
Operation principle of the present invention is that the plastics of fusion enter die sleeve by feeding port, and depended on pressure is realized typing at last on cable core, the hoist cable by die sleeve.Form the feeding port of certain angle between core rod and die sleeve, the corner dimension of feeding port influences the size of plastic pressure, and then influences the quality of cable plastic layer and the cable of extruding.
Than solution of the prior art, the utility model advantage is:
1. novel in the technical solution of the present invention " 8 " font cable extrusion die is by adopting the fashion of extrusion extrusion plastic, and fashion of extrusion improves the plastics extrusion pressure, by rational mold design, has thoroughly solved the defect of cable " wryneck ".
2. optimal technical scheme of the present invention adopts the squash type principle to carry out mould and improves, novel " 8 " the font extrusion die that forms, the core rod bore is shortened in the die sleeve, core rod designs the spacing of 3～5mm between die sleeve, so that the pressure of control plastics during by core rod and die sleeve, plastics are expressed on cable core and the steel strand wire closely, the self-supporting cable forming effect that adopts this kind die production to go out is good, sheath tight, surfacing, attractive in appearance, improve the useful life of product, be convenient to installation and maintenance.
In sum, the present invention is by designing top clearance between core rod and die sleeve, the core rod of mould does not have tubulose to hold path portion, core rod holds the back, footpath at die sleeve, the plastics of fusion are that depended on pressure is realized last typing by die sleeve, and the plastic layer structure of extruding is tight, and appearance is smooth, the size of the plastic pressure of the corner dimension decision fusion between core rod and die sleeve affects plastic layer quality and geometry size and the surface quality of extruding electric wire.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation that the cable in plastics cable squeezes the tubular type extrusion die in the prior art;
Fig. 2 is the structural representation of embodiment of the invention cable in plastics cable squash type extrusion die;
Fig. 3 is the end view of Fig. 2;
Wherein: 1 is core rod; 2 is die sleeve; 3 is top clearance, and 4 is feeding port;
11 is the core rod body; 12 is the core rod hole, 13 for the core rod tubulose hold the footpath; 21 is tapered sleeve portion; 22 is sizing portion; 23 for die sleeve hold the footpath.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment as shown in Figures 2 and 3, this cable in plastics cable squash type extrusion die, comprise core rod 1 and the die sleeve 2 that is set in the core rod outside, described die sleeve 2 cooperates the injection moulding extrusion modling with core rod 1, it is characterized in that 1 of described die sleeve 2 and core rod are provided with top clearance 3, the spacing range of described top clearance 3 is at 3～5mm.
Die sleeve comprises tapered sleeve portion 21 and sizing portion 22, and described sizing portion is provided with the die sleeve that current supply cable hoist cable and cable core pass through and holds footpath 23; Described core rod is arranged on die sleeve and holds footpath 23 rear ends and core rod and top clearance 3 is set between holding directly with die sleeve.Described core rod comprises core rod body 11, on the described core rod body core rod hole 12 is set, and the core rod bore in described core rod hole holds the die sleeve bore in footpath 23 less than die sleeve.The tapered sleeve portion of described core rod body and die sleeve forms the feeding port 4 of certain angle.
Owing between core rod and die sleeve, design top clearance, the core rod of mould does not have tubulose to hold path portion, core rod holds the back, footpath at die sleeve, the plastics of fusion enter die sleeve tapered sleeve portion by feeding port, and because the angle that tapered sleeve portion and core rod body form produces pressure, realize last typing in sizing portion, the plastic layer structure of extruding is tight, appearance is smooth, the size of the plastic pressure of the corner dimension decision fusion between core rod and die sleeve affects plastic layer quality and geometry size and the surface quality of extruding electric wire.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (5)
1. cable in plastics cable squash type extrusion die, comprise core rod (1) and be located at the die sleeve (2) in the core rod outside, described die sleeve (2) cooperates the injection moulding extrusion modling with core rod (1), it is characterized in that between described die sleeve (2) and core rod (1) top clearance (3) being set.
2. cable in plastics cable squash type extrusion die according to claim 1, the spacing range that it is characterized in that described top clearance (3) is at 3～5mm.
3. cable in plastics cable squash type extrusion die according to claim 1 is characterized in that described die sleeve comprises tapered sleeve portion (21) and sizing portion (22), and described sizing portion is provided with the die sleeve that current supply cable hoist cable and cable core pass through and holds footpath (23); Described core rod is arranged on die sleeve and holds footpath (23) rear end and core rod and top clearance (3) is set between holding directly with die sleeve.
4. cable in plastics cable squash type extrusion die according to claim 1 is characterized in that described core rod comprises core rod body (11), and core rod hole (12) is set on the described core rod body, and the core rod bore in described core rod hole holds the die sleeve bore in footpath (23) less than die sleeve.
5. cable in plastics cable squash type extrusion die according to claim 1, the tapered sleeve portion of described core rod body and die sleeve that it is characterized in that forms the feeding port (4) of certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202412814U CN201518253U (en) | 2009-11-03 | 2009-11-03 | Plastic wire and cable squeeze extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202412814U CN201518253U (en) | 2009-11-03 | 2009-11-03 | Plastic wire and cable squeeze extrusion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518253U true CN201518253U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202412814U Expired - Lifetime CN201518253U (en) | 2009-11-03 | 2009-11-03 | Plastic wire and cable squeeze extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518253U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096163A (en) * | 2011-01-10 | 2011-06-15 | 南京烽火藤仓光通信有限公司 | Method for producing sheath of nylon cable and extrusion die thereof |
| CN103381430A (en) * | 2013-07-26 | 2013-11-06 | 浙江长兴威尔鹰电缆科技有限公司 | Cable forming die |
| CN104002464A (en) * | 2014-05-26 | 2014-08-27 | 常熟市谷雷特机械产品设计有限公司 | Molding device and method for self-bearing air blowing pipeline |
| CN104167260A (en) * | 2014-08-06 | 2014-11-26 | 山东省农业机械科学研究院 | Cable extrusion test run technology |
| CN106710681A (en) * | 2017-02-23 | 2017-05-24 | 湖北宇洪光电实业有限公司 | 6<+> digital communication cable and manufacturing method therefor |
| CN107139419A (en) * | 2017-04-26 | 2017-09-08 | 烽火通信科技股份有限公司 | A kind of 8-shaped cable is extruded mould |
| CN109333957A (en) * | 2018-11-29 | 2019-02-15 | 江苏亨通电力电缆有限公司 | Charging pile cable cover(ing) plsitive mold |
| WO2019109806A1 (en) * | 2017-12-07 | 2019-06-13 | 江苏亨通光电股份有限公司 | Five-hole ribbon fiber optic cable molding die |
-
2009
- 2009-11-03 CN CN2009202412814U patent/CN201518253U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096163A (en) * | 2011-01-10 | 2011-06-15 | 南京烽火藤仓光通信有限公司 | Method for producing sheath of nylon cable and extrusion die thereof |
| CN103381430A (en) * | 2013-07-26 | 2013-11-06 | 浙江长兴威尔鹰电缆科技有限公司 | Cable forming die |
| CN104002464A (en) * | 2014-05-26 | 2014-08-27 | 常熟市谷雷特机械产品设计有限公司 | Molding device and method for self-bearing air blowing pipeline |
| CN104167260A (en) * | 2014-08-06 | 2014-11-26 | 山东省农业机械科学研究院 | Cable extrusion test run technology |
| CN106710681A (en) * | 2017-02-23 | 2017-05-24 | 湖北宇洪光电实业有限公司 | 6<+> digital communication cable and manufacturing method therefor |
| CN107139419A (en) * | 2017-04-26 | 2017-09-08 | 烽火通信科技股份有限公司 | A kind of 8-shaped cable is extruded mould |
| WO2019109806A1 (en) * | 2017-12-07 | 2019-06-13 | 江苏亨通光电股份有限公司 | Five-hole ribbon fiber optic cable molding die |
| CN109333957A (en) * | 2018-11-29 | 2019-02-15 | 江苏亨通电力电缆有限公司 | Charging pile cable cover(ing) plsitive mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100630 |