CN106514985A - Plastic extruding die used for electric wire with specially-shaped section and provided with spherical runner - Google Patents
Plastic extruding die used for electric wire with specially-shaped section and provided with spherical runner Download PDFInfo
- Publication number
- CN106514985A CN106514985A CN201611243380.7A CN201611243380A CN106514985A CN 106514985 A CN106514985 A CN 106514985A CN 201611243380 A CN201611243380 A CN 201611243380A CN 106514985 A CN106514985 A CN 106514985A
- Authority
- CN
- China
- Prior art keywords
- core rod
- die
- die sleeve
- core
- runner
- 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.)
- Granted
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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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The invention provides a plastic extruding die used for an electric wire with specially-shaped section and provided with a spherical runner. The plastic extruding die comprises a die core and a die sleeve. A tapered body of which the outer surface is at the taper angle of alpha is arranged at the front of the die core. An outer spherical die core top end of which the radius is R1 is arranged at the front end of the tapered body. A concave part which is at the taper angle of beta is arranged on one side, close to the die core, in the die sleeve. An inner spherical die sleeve inner end of which the radius is R2 is arranged at the axial inner end of the concave part. A through hole communicating with the concave part is formed in the die sleeve. The outer spherical sphere center of the die core and the inner spherical sphere center of the die sleeve are on the same point. R1 is smaller than R2, and alpha is smaller than beta. The runner is formed between the tapered body at the front end of the die core and the concave part of the die sleeve. The circle centers of the spherical surfaces of the die core and the die sleeve are on the same side. A die cavity gradually compressed is formed in the front end of the runner, so that the extruded plastic can be continuously compressed in the die cavity and is uniformly extruded.
Description
Technical field
The present invention relates to a kind of technical field of cable plastic extrusion technique, more particularly to a kind of profiled-cross-section electric wire ball
Surface current road extruded mould.
Background technology
The surface of its inner flow passage fore-end of common extrusion die of 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 extrudate in the runner of runner front end due to extrudate（Insulation or
Squeeze set）Pressure it is uneven, extrudate flow velocity is different, it is more difficult to reach that pressure is uniform, the satisfactory purpose of extrudate thickness, Jing
Often there is insulating barrier problem in uneven thickness in a circumferential direction.The core rod of the latter and the machine-shaping of die sleeve water passage surface are tired
Difficulty, needs special purpose machine tool or pincers worker to make by hand（Or first it is aided with lathe roughing shaping）, processing charges is higher, and the time is longer,
There may come a time when to need die trial repeatedly and change repeatedly mould, have much room for improvement.
The content of the invention
The purpose of the present invention is to propose to a kind of profiled-cross-section electric wire sphere runner extruded mould.
Technical scheme is as follows：A kind of profiled-cross-section electric wire sphere runner extruded mould, is characterized in that：Should
Device includes core rod and die sleeve, and being axially hollow hole inside described core rod, core rod is latter half of for cylindrical body, and anterior is appearance
Bullet of the face in cone angle for α, in the core tip that the front end of the bullet is the spherical outside surface shape that radius is R1, described core rod
Interior hollow hole, bullet, on the same line, the front end of core rod is provided with side by side at least two to the axis of spherical outside surface shape three
Circular core hole of crossing is run through die core front end and is communicated to hollow hole, crosses the diameter parallel in core hole and core rod；
Described die sleeve revolving body hat shape hollow object, die sleeve are located at the front end of core rod, set near the side of core rod inside die sleeve
The axial inner ends for having the sunken inside portion of the taper in cone angle for β, the depressed part are provided with the die sleeve of the Internal Spherical Surface shape that radius is R2
End, the Internal Spherical Surface shape, sunken inside portion both tapers axis on the same line, be provided with away from the one end of core rod in die sleeve and pass through
The flat outlet forming hole worn, the outlet forming hole include two side portion cylindrical radial faces and upper and lower two planes, it is upper,
Lower two planes are provided with the raised convex sword of boundary molding of the corresponding least one set in position；
The centre of sphere of the centre of sphere of the spherical outside surface shape of described core rod and the Internal Spherical Surface shape of die sleeve in same point, R1 ＜ R2, described α
＜ β, form runner between the sunken inside portion of the bullet and die sleeve of die core front end, and its runner is narrower the closer to axle center.
Preferably, external screw thread first is provided with the middle part of the outer surface of the cylindrical body of core rod, for the fixed installation of core rod.
Preferably, the hollow hole in described core rod and the tapered transition in position that core hole transition is connected excessively.
The solution have the advantages that：
The sphere runner mold of this patent is by the outlet side of the runner for constituting by core rod and die sleeve（That is the outlet of mold runner
End）Core rod and die sleeve surface configuration be processed as spherical shape.Sphere of the sphere of core rod and die sleeve for the homonymy center of circle.Die sleeve
The radius of a ball greatly less than the radius of a ball of core rod, form the die cavity that gradually reduces in runner front end, make squeezed plastic cement here part
Die cavity interior energy continues compression and equably extrudes.
The sphere runner of this patent mould can avoid the shortcoming of two kinds of moulds that background section mentions, and extrudate is in mould
In tool, pressure is uniform, and flow velocity is close to, and makes extrudate shape and thickness easily reach the size of requirement；And mould processing is simple,
Core rod and die sleeve water passage surface engine lathe can be processed, and greatly reduce processing cost and process time.
Description of the drawings
Fig. 1 is the end construction schematic diagram of the profiled-cross-section electric wire sphere runner extruded mould；
F-F cross-sectional views of the Fig. 2 for Fig. 1；
G-G cross-sectional views of the Fig. 3 for Fig. 2；
Fig. 4 is one of dimensional structure diagram of the profiled-cross-section electric wire sphere runner extruded mould；
Fig. 5 is the two of the dimensional structure diagram of the profiled-cross-section electric wire sphere runner extruded mould；
Dimensional structure diagrams of the Fig. 6 for core rod；
Schematic cross-sections of the Fig. 7 for profiled-cross-section electric wire；
Core holes, 105. hollow holes, 106. external screw threads, 107. flat are crossed in 101. core rods in figure, 102. die sleeves, 103. runners, 104.
Flat-shaped outlet forming hole, the convex sword of 108. boundary molding, the bullet of 109. core rods, the tapered recess of 110. die sleeves, 111. moulds
The spherical outside surface shape of core, the Internal Spherical Surface shape of 112. die sleeves, the insulating barrier of 113. profiled-cross-section electric wires, 114. profiled-cross-section electric wires
The insulating barrier conductor thread core of cable.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing 1-6 to present invention enforcement
Mode is described in further detail.
A kind of profiled-cross-section electric wire sphere runner extruded mould in figure, the device include core rod and die sleeve,
It is being axially hollow hole inside described core rod, core rod is latter half of for cylindrical body, the anterior cone for outer surface in cone angle for α
Body, in the core tip that the front end of the bullet is the spherical outside surface shape that radius is R1, the hollow hole in described core rod, taper
Body, the axis of spherical outside surface shape three on the same line, pass through by least two circular core holes of crossing that the front end of core rod is provided with side by side
Wear die core front end and be communicated to hollow hole, cross the diameter parallel in core hole and core rod；
Described die sleeve revolving body hat shape hollow object, die sleeve are located at the front end of core rod, set near the side of core rod inside die sleeve
The axial inner ends for having the sunken inside portion of the taper in cone angle for β, the depressed part are provided with the die sleeve of the Internal Spherical Surface shape that radius is R2
End, the Internal Spherical Surface shape, sunken inside portion both tapers axis on the same line, be provided with away from the one end of core rod in die sleeve and pass through
The flat outlet forming hole worn, the outlet forming hole include two side portion cylindrical radial faces and upper and lower two planes, it is upper,
Lower two planes are provided with the raised convex sword of boundary molding of the corresponding least one set in position；
The centre of sphere of the centre of sphere of the spherical outside surface shape of described core rod and the Internal Spherical Surface shape of die sleeve in same point, R1 ＜ R2, described α
＜ β, form runner between the sunken inside portion of the bullet and die sleeve of die core front end, and its runner is narrower the closer to axle center.
External screw thread first is provided with the middle part of the outer surface of the cylindrical body of core rod, for the fixed installation of core rod.
Hollow hole in described core rod and the tapered transition in position that core hole transition is connected excessively.Electricity can so be reduced
The friction of cable core.
During use by the mould installion on extruder, conductor monofilament is through on the hollow hole of core rod, cable-through hole, die sleeve
Outlet forming hole, the Insulation Material after hot melt are extruded from runner forward, are wrapped in outside conductor, then when between two sphericals
Jing forming holes shape out, and in extrusion, the more individual side of Insulation Material upwards pressure equilibrium, ensure that conductor one week after molding
Insulating barrier consistency of thickness, reduction in the numbers of seconds.
Claims (3)
1. a kind of profiled-cross-section electric wire sphere runner extruded mould, is characterized in that：The device includes core rod and die sleeve, described
Core rod inside being axially hollow hole, core rod is latter half of for cylindrical body, the anterior bullet for outer surface in cone angle for α,
The front end of the bullet be radius for R1 spherical outside surface shape core tip, the hollow hole in described core rod, bullet, ectosphere
On the same line, the front end of core rod is provided with least two circular core holes of crossing side by side before core rod to the axis of face shape three
Hollow hole is held and be communicated to, the diameter parallel in core hole and core rod is crossed；
Described die sleeve revolving body hat shape hollow object, die sleeve are located at the front end of core rod, set near the side of core rod inside die sleeve
The axial inner ends for having the sunken inside portion of the taper in cone angle for β, the depressed part are provided with the die sleeve of the Internal Spherical Surface shape that radius is R2
End, the Internal Spherical Surface shape, sunken inside portion both tapers axis on the same line, be provided with away from the one end of core rod in die sleeve and pass through
The flat outlet forming hole worn, the outlet forming hole include two side portion cylindrical radial faces and upper and lower two planes, it is upper,
Lower two planes are provided with the raised convex sword of boundary molding of the corresponding least one set in position；
The centre of sphere of the centre of sphere of the spherical outside surface shape of described core rod and the Internal Spherical Surface shape of die sleeve in same point, R1 ＜ R2, described α
＜ β, form runner between the sunken inside portion of the bullet and die sleeve of die core front end, and its runner is narrower the closer to axle center.
2. profiled-cross-section electric wire sphere runner extruded mould according to claim 1, is characterized in that：In the cylinder of core rod
External screw thread first is provided with the middle part of the outer surface of body, for the fixed installation of core rod.
3. profiled-cross-section electric wire sphere runner extruded mould according to claim 1, is characterized in that：Described core rod
Interior hollow hole and the tapered transition in position that core hole transition is connected excessively.
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 true CN106514985A (en) | 2017-03-22 |
| CN106514985B CN106514985B (en) | 2018-12-14 |
Family
ID=58339248
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106514985B (en) |
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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106514985B (en) | 2018-12-14 |
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