CN106514985B - A kind of profiled-cross-section wire and cable spherical surface runner extruded mould - Google Patents
A kind of profiled-cross-section wire and cable spherical surface runner extruded mould Download PDFInfo
- Publication number
- CN106514985B CN106514985B CN201611243380.7A CN201611243380A CN106514985B CN 106514985 B CN106514985 B CN 106514985B CN 201611243380 A CN201611243380 A CN 201611243380A CN 106514985 B CN106514985 B CN 106514985B
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- CN
- China
- Prior art keywords
- mold core
- die sleeve
- core
- spherical surface
- runner
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/143—Insulating conductors or cables by extrusion with a special opening of the extrusion head
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
A kind of profiled-cross-section wire and cable spherical surface runner extruded mould, including a kind of profiled-cross-section wire and cable spherical surface runner extruded mould, the device includes mold core and die sleeve, the front of the mold core is the bullet that outer surface is α in cone angle, it is the core tip for the spherical outside surface shape that radius is R1 in the front end of the bullet, the indent concave portion in the taper that cone angle is β is equipped with close to the side of mold core inside die sleeve, the axial inner ends of the recessed portion are equipped with the die sleeve inner end for the Internal Spherical Surface shape that radius is R2, the through-hole being connected to the recessed portion is additionally provided in die sleeve, the centre of sphere of the Internal Spherical Surface shape of the centre of sphere and die sleeve of the spherical outside surface shape of the mold core is in same point, R1 < R2, the α < β, runner is formed between the bullet of die core front end and the indent concave portion of die sleeve, the spherical surface of mold core and die sleeve is the spherical surface in the ipsilateral center of circle, Runner front end forms the die cavity that gradually reduces, makes the plastic cement being squeezed that can continue to compress and equably squeeze out in die cavity in this section.
Description
Technical field
The present invention relates to a kind of technical fields of cable plastic extrusion technique, more particularly to a kind of profiled-cross-section wire and cable ball
Surface current road extruded mould.
Background technique
The surface of its inner flow passage front end portion of common extrusion die in the prior art is plane or the electricity by extrusion
The shaped flow channel surface of line cross-section of cable shape transition.The former due to extrudate in the runner of runner front end extrudate (insulation or
Squeeze set) pressure it is uneven, extrudate flow velocity is different, it is more difficult to reach pressure uniformly, the satisfactory purpose of extrudate thickness, warp
Often there is insulating layer problem in uneven thickness in a circumferential direction.The mold core of the latter and die sleeve water passage surface machine-shaping are tired
Difficulty needs special purpose machine tool or pincers worker hand-made (or being first aided with lathe roughing forming), and processing charges is higher, and the time is longer,
It there may come a time when to need die trial repeatedly and modify mold repeatedly, have much room for improvement.
Summary of the invention
The purpose of the present invention is to propose to a kind of profiled-cross-section wire and cable spherical surface runner extruded moulds.
Technical scheme is as follows: a kind of profiled-cross-section wire and cable spherical surface runner extruded mould, it is characterized in that: should
Mold includes mold core and die sleeve, is axially being hollow hole inside the mold core, latter half of mold core is cylindrical body, and front is appearance
The bullet that face is α in cone angle, is the core tip for the spherical outside surface shape that radius is R1, the mold core in the front end of the bullet
Interior hollow hole, bullet, on the same line, the front end of mold core is equipped with side by side at least two to the axis of spherical outside surface shape three
Circle crosses core hole through die core front end and is connected to hollow hole, and it is parallel with the axis of mold core to cross core hole；
The die sleeve is revolving body hat shape hollow object, and die sleeve is located at the front end of mold core, close to mold core inside die sleeve
Side is equipped with the indent concave portion in the taper that cone angle is β, and the axial inner ends of the indent concave portion are equipped with the Internal Spherical Surface shape that radius is R2
Die sleeve inner end, both the Internal Spherical Surface shape, taper of indent concave portion axis on the same line, in the one end of die sleeve far from mold core
Portion is equipped with perforative flat outlet molding hole, which includes that two sides edge cylindrical radial face and upper and lower two put down
Face, the boundary that the corresponding at least one set of protrusion in position is equipped in upper and lower two planes form convex sword；
The centre of sphere of the Internal Spherical Surface shape of the centre of sphere and die sleeve of the spherical outside surface shape of the mold core is in same point, R1 < R2, institute
The α < β stated forms runner between the bullet of die core front end and the indent concave portion of die sleeve, and runner is narrower closer to axle center
It is narrow.
Preferably, external screw thread, the fixed installation for mold core are equipped in the middle part of the outer surface of the cylindrical body of mold core.
Preferably, the tapered transition in position that the hollow hole in the mold core is connect with core hole transition excessively.
The solution have the advantages that:
The spherical surface runner mold of this patent is will be by outlet side (the i.e. mold runner of mold core and the runner of die sleeve constituted
Outlet end) mold core and die sleeve surface shape be processed as spherical shape.The spherical surface of mold core and die sleeve is the spherical surface in the ipsilateral center of circle.
The radius of a ball of die sleeve is less than greatly the radius of a ball of mold core, forms the die cavity to gradually reduce in runner front end, makes the plastic cement being squeezed herein
It can continue to compress and equably squeeze out in the die cavity of part.
The spherical surface runner of this patent mold can avoid the shortcomings that two kinds of molds that background technology part is mentioned, and extrudate is in mould
Pressure is uniform in having, and flow velocity is close, and extrudate shape and thickness is made to be easy to reach the size of requirement；And the processing is simple for mold,
Mold core and die sleeve water passage surface are i.e. processable with center lathe, greatly reduce processing cost and process time.
Detailed description of the invention
Fig. 1 is the end construction schematic diagram of the profiled-cross-section wire and cable spherical surface runner extruded mould；
Fig. 2 is the F-F the schematic diagram of the section structure of Fig. 1；
Fig. 3 is the G-G the schematic diagram of the section structure of Fig. 2；
Fig. 4 is one of the schematic perspective view of the profiled-cross-section wire and cable spherical surface runner extruded mould；
Fig. 5 is the two of the schematic perspective view of the profiled-cross-section wire and cable spherical surface runner extruded mould；
Fig. 6 is the schematic perspective view of mold core；
Fig. 7 is the schematic cross-section of profiled-cross-section wire and cable；
101. mold cores in figure, 102. die sleeves, 103. runners, 104. cross core holes, 105. hollow holes, 106. external screw threads,
107. the taper sunken inside that flat outlet molding hole, 108. boundary form convex sword, the bullet of 109. mold cores, 110. die sleeves
It is portion, the spherical outside surface shape of 111. mold cores, the Internal Spherical Surface shape of 112. die sleeves, the insulating layer of 113. profiled-cross-section wire and cables, 114. different
The insulating layer conductor thread core of type section wire and cable.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is implemented below in conjunction with attached drawing 1-6
Mode is described in further detail.
A kind of profiled-cross-section wire and cable spherical surface runner extruded mould in figure, the mold include mold core and die sleeve,
It is axially being hollow hole inside the mold core, it is cylindrical body that mold core is latter half of, and it is α that front, which is outer surface in cone angle,
Bullet, be the core tip for the spherical outside surface shape that radius is R1 in the front end of the bullet, the hollow hole in the mold core,
Bullet, on the same line, the front end of mold core is equipped at least two circles side by side and crosses core the axis of spherical outside surface shape three
Hole is through die core front end and is connected to hollow hole, and it is parallel with the axis of mold core to cross core hole；
The die sleeve is revolving body hat shape hollow object, and die sleeve is located at the front end of mold core, close to mold core inside die sleeve
Side is equipped with the indent concave portion in the taper that cone angle is β, and the axial inner ends of the indent concave portion are equipped with the Internal Spherical Surface shape that radius is R2
Die sleeve inner end, both the Internal Spherical Surface shape, taper of indent concave portion axis on the same line, in the one end of die sleeve far from mold core
Portion is equipped with perforative flat outlet molding hole, which includes that two sides edge cylindrical radial face and upper and lower two put down
Face, the boundary that the corresponding at least one set of protrusion in position is equipped in upper and lower two planes form convex sword；
The centre of sphere of the Internal Spherical Surface shape of the centre of sphere and die sleeve of the spherical outside surface shape of the mold core is in same point, R1 < R2, institute
The α < β stated forms runner between the bullet of die core front end and the indent concave portion of die sleeve, and runner is narrower closer to axle center
It is narrow.
External screw thread, the fixed installation for mold core are equipped in the middle part of the outer surface of the cylindrical body of mold core.
The tapered transition in position that hollow hole in the mold core is connect with core hole transition excessively.It can reduce electricity in this way
The friction of cable core.
The mold is mounted on extruder when use, conductor monofilament passes through on the hollow hole, cable-through hole, die sleeve of mold core
Outlet molding hole, the Insulation Material after hot melt are squeezed out forward from runner, are wrapped in outside conductor when via between two sphericals, then
It finalizes to come through molding hole, more a side of Insulation Material upwards pressure equilibrium in extrusion process, can guarantee after molding conductor one week
Insulating layer consistency of thickness, reduction in the numbers of seconds.
Claims (2)
1. a kind of profiled-cross-section wire and cable spherical surface runner extruded mould, it is characterized in that: the mold includes mold core and die sleeve, it is described
Mold core inside be axially hollow hole, it is cylindrical body that mold core is latter half of, the bullet that it is α in cone angle that front, which is outer surface,
The front end of the bullet is the core tip for the spherical outside surface shape that radius is R1, the hollow hole in the mold core, bullet, ectosphere
On the same line, the front end of mold core is equipped at least two round core holes of crossing side by side before mold core to the axis of face shape three
Hollow hole is held and be connected to, it is parallel with the axis of mold core to cross core hole；
The die sleeve is revolving body hat shape hollow object, and die sleeve is located at the front end of mold core, close to the side of mold core inside die sleeve
Equipped with the indent concave portion in the taper that cone angle is β, the axial inner ends of the indent concave portion are equipped with the mould for the Internal Spherical Surface shape that radius is R2
Inner end is covered, both the Internal Spherical Surface shape, the taper of indent concave portion axis on the same line, are set in die sleeve far from the one end of mold core
There is a perforative flat outlet molding hole, which includes two sides edge cylindrical radial face and upper and lower two planes,
The boundary that upper and lower two planes are equipped with the corresponding at least one set of protrusion in position forms convex sword；
The centre of sphere of the Internal Spherical Surface shape of the centre of sphere and die sleeve of the spherical outside surface shape of the mold core is in same point, R1 < R2, the α
< β forms runner between the bullet of die core front end and the indent concave portion of die sleeve, and runner is narrower closer to axle center, institute
The tapered transition in position that the hollow hole in mold core stated is connect with core hole transition excessively.
2. profiled-cross-section wire and cable spherical surface runner extruded mould according to claim 1, it is characterized in that: in the cylinder of mold core
External screw thread, the fixed installation for mold core are equipped in the middle part of the outer surface of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243380.7A CN106514985B (en) | 2016-12-29 | 2016-12-29 | A kind of profiled-cross-section wire and cable spherical surface runner extruded mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243380.7A CN106514985B (en) | 2016-12-29 | 2016-12-29 | A kind of profiled-cross-section wire and cable spherical surface runner extruded mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106514985A CN106514985A (en) | 2017-03-22 |
| CN106514985B true CN106514985B (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243380.7A Active CN106514985B (en) | 2016-12-29 | 2016-12-29 | A kind of profiled-cross-section wire and cable spherical surface runner extruded mould |
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| CN (1) | CN106514985B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774565B (en) * | 2019-12-04 | 2024-09-03 | 江苏上上电缆集团有限公司 | Extrusion method of cable hollow supporting structure |
| CN115366378B (en) * | 2022-08-26 | 2024-07-02 | 江苏永鼎盛达电缆有限公司 | Extrusion molding die of special-shaped easy-to-tear cable |
Citations (6)
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|---|---|---|---|---|
| CN103496141A (en) * | 2013-09-27 | 2014-01-08 | 江苏亨通光电股份有限公司 | Special-shaped self-supporting optical cable mould and manufacturing method thereof |
| CN203818531U (en) * | 2014-04-03 | 2014-09-10 | 广东华声电器股份有限公司 | Wire-cable parallel-line extruding mold |
| CN204354448U (en) * | 2014-12-15 | 2015-05-27 | 常熟市电缆厂 | Electric wire oversheath squeezes the mould structure covered |
| CN205202080U (en) * | 2015-10-21 | 2016-05-04 | 张家港市乐余永益塑料模具厂 | Self -bearing type optical cable sheath extrusion tooling |
| CN205255460U (en) * | 2016-01-07 | 2016-05-25 | 成都奥派风雅电缆制造有限公司 | Insulating forming die of double -guide heating cable |
| CN206344432U (en) * | 2016-12-29 | 2017-07-21 | 一方电气股份有限公司 | A kind of profiled-cross-section electric wire sphere runner extruded mould |
-
2016
- 2016-12-29 CN CN201611243380.7A patent/CN106514985B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496141A (en) * | 2013-09-27 | 2014-01-08 | 江苏亨通光电股份有限公司 | Special-shaped self-supporting optical cable mould and manufacturing method thereof |
| CN203818531U (en) * | 2014-04-03 | 2014-09-10 | 广东华声电器股份有限公司 | Wire-cable parallel-line extruding mold |
| CN204354448U (en) * | 2014-12-15 | 2015-05-27 | 常熟市电缆厂 | Electric wire oversheath squeezes the mould structure covered |
| CN205202080U (en) * | 2015-10-21 | 2016-05-04 | 张家港市乐余永益塑料模具厂 | Self -bearing type optical cable sheath extrusion tooling |
| CN205255460U (en) * | 2016-01-07 | 2016-05-25 | 成都奥派风雅电缆制造有限公司 | Insulating forming die of double -guide heating cable |
| CN206344432U (en) * | 2016-12-29 | 2017-07-21 | 一方电气股份有限公司 | A kind of profiled-cross-section electric wire sphere runner extruded mould |
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| Publication number | Publication date |
|---|---|
| CN106514985A (en) | 2017-03-22 |
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