CN105058742A - Mold and machining technology for improving eccentricity of smart energy locomotive cable - Google Patents
Mold and machining technology for improving eccentricity of smart energy locomotive cable Download PDFInfo
- Publication number
- CN105058742A CN105058742A CN201510498372.6A CN201510498372A CN105058742A CN 105058742 A CN105058742 A CN 105058742A CN 201510498372 A CN201510498372 A CN 201510498372A CN 105058742 A CN105058742 A CN 105058742A
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- CN
- China
- Prior art keywords
- mold
- core rod
- die sleeve
- jig
- bolt
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- 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.)
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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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- 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
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
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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
- H01B13/22—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)
- Cable Accessories (AREA)
Abstract
The invention provides a mold and machining technology for improving the eccentricity of a smart energy locomotive cable. The mold comprises an extrusion mold core, locating bolts, a mold sleeve and a locating mold. The locating mold is of a hollow structure and comprises a mold core locating surface, a mold sleeve locating surface and a pin, wherein the inclined surface at the front end of the inner surface of the locating mold serves as the mold core locating surface, the outer surface of the locating mold serves as the mold sleeve locating surface, and the pin penetrates through the locating mold. The inner taper angle of the mold core locating surface and the taper angle of the extrusion mold core are 45 degrees. By the adoption of the mold for improving the eccentricity of the smart energy locomotive cable, the center of the extrusion mold core and the center of the mold sleeve can be fixed to form a horizontal line, and the situation that an insulator and a sheath have the quite high concentricity can be guaranteed. After the extrusion mold core and the mold sleeve are fixed, the locating mold is drawn out, flowing movement of materials is not affected at all, and therefore the eccentricity and the external diameter of the cable are effectively reduced.
Description
Technical field
The present invention relates to locomotive cable field, refers in particular to a kind of mould and the processing technology that improve the locomotive cable degree of eccentricity.
Background technology
The develop rapidly of China in Recent Years locomotive technology, locomotive electric cad system equipment is more and more accurate, thus stube cable quantity needed for intra-locomotive gets more and more, but intra-locomotive limited space, therefore the external diameter of cable requires more and more stricter.Locomotive cable insulation used and sheath material are low-smoke non-halogen flame-retardant oil resisting material, the mobility of this material is lower, adopt tubular molding tool production can cause insulation and jacket surface crude, insulation and sheath directly affect the electrical property of cable with conductor in conjunction with defective tightness simultaneously, therefore plsitive mold must be adopted to produce, but plsitive mold eccentric difficulty is comparatively large, eccentric process can waste a large amount of time and materials, can cause that the outside diameter of cable is bigger than normal cannot meet customer need simultaneously.
Cable adopts plsitive mold to produce insulation or sheath, to need express material by very large pressure to conductor, insulated wire cores or become on cable core, then be insulation or the sheath that line segment is squeezed into rounding by die sleeve, gained cable smooth in appearance rounding, insulation and sheath are combined with internal layer closely, excellent electrical property, therefore receives an acclaim.But eccentric is very difficult during operation, cause primarily of following factor: 1, plsitive mold extruding force is 2 ~ 3 times of crowded tubular type, core rod and die sleeve directly have the distance of about 4mm, just started to add man-hour Flow of Goods and Materials unstable, when die sleeve be line segment bear very large pressure be very easy to bias; 2, gap is had between core after multicore cable stranding and an inadequate rounding, therefore the aperture 0.2mm larger than the external diameter after stranding of squash type core rod is selected, this will cause into the mobile space that cable core has 0.2mm in core rod, during eccentric, the traction of core is unstable, thus causes the bias mixed up also to have bias after bursting at the seams.Therefore need to burst at the seams while eccentric, until till qualified, so repeatedly adjust test and can cause a large amount of wastes.Both added labour intensity, and can waste a large amount of materials again, general start eccentric can waste more than 10 meter of cable.The cable eccentricity degree produced in this way is generally more than 10%.
Chinese patent ZL200820040105.X disclosed " pressing type mold for electric cable protection sleeve ", the concentric sizing having radial direction to be greater than this cross section core rod external diameter in die core front end supports, and ensures in cable extrusion formula production process not eccentric.But because locomotive cable insulation and sheath material require halogen-free low-voltage oil resistant high flame retardant, the mobility of material is poor, and the program adds concentric sizing and supports on original mould, have impact on the flowing of material between core rod and die sleeve, causes material matched moulds region crude.Locomotive cable specification is more simultaneously, will increase a large amount of moulds, also can cause the waste of increasing in program implementation process.
Summary of the invention
First object of the present invention is to provide a kind of mould improving wisdom energy locomotive cable eccentricity degree.
The technical scheme realizing the present invention's first object is a kind of mould improving wisdom energy locomotive cable eccentricity degree, comprises squash type core rod, bolt, die sleeve and jig; Described jig is hollow structure, comprises core rod locating surface, die sleeve locating surface and pin; The inclined-plane, front end of the inner surface of described jig is as core rod locating surface, and the outer surface of jig is as die sleeve locating surface, and described pin runs through jig; The interior cone angle of described core rod locating surface and the cone angle of squash type core rod are 45 °.
Described bolt comprises fixes the upper bolt of die sleeve, lower bolt, left bolt and right bolt from four direction.
The minimum place internal diameter of described squash type core rod is 8.0mm, and the external diameter of jig is 11.9mm, and the internal diameter of die sleeve is 12.0mm.
Described pin to be inserted in jig and to be welded to connect with jig, and the height exposing die sleeve locating surface is 20mm.
Second object of the present invention is to provide a kind of processing technology improving wisdom energy locomotive cable eccentricity degree.
The technical scheme realizing the present invention's second object is a kind of processing technology improving wisdom energy locomotive cable eccentricity degree, comprises following steps:
Step one: determine that mould structure as previously mentioned;
Step 2: first the bolt of four direction is unscrewed;
Step 3: install squash type core rod and die sleeve;
Step 4: insert from the inner chamber of die sleeve after jig surfaces externally and internally is coated with one deck lubricating oil, ensures that the cone angle of core rod locating surface and squash type core rod fits tightly;
Step 5: upper bolt, lower bolt, left bolt and right bolt are screwed, from four direction, die sleeve is fixed, finally hold pin and jig is extracted out;
Step 6: conductor or insulated wire cores are passed squash type core rod and die sleeve;
Step 7: start extruded material, material flows into from the conical surface of squash type core rod, and place is extruded at die sleeve, and the production outside diameter of cable is 12.0mm, the degree of eccentricity 2%.
Adopt technique scheme, patent of the present invention has following beneficial outcomes:
(1) center of squash type core rod and die sleeve can fixedly be become a horizontal line by the mould of the raising locomotive cable degree of eccentricity of the present invention, can ensure that insulation and sheath have high concentricity, jig is extracted out after fixing by squash type core rod and die sleeve, do not affect the flowing of material completely, therefore effectively reduce the degree of eccentricity and the external diameter of cable.
(2) jig of the present invention is separated with die sleeve with squash type core rod, therefore traditional squash type core rod and die sleeve all can normally use, only need additional processing jig, this jig is identical with the cone angle of squash type core rod with die sleeve internal diameter, the aperture of squash type core rod can increase or reduce, therefore jig may be used for the production of multiple specification cable, very convenient and practical.
(3) process simple possible of the present invention, eliminate loaded down with trivial details, time-consuming eccentric process, substantially increase the degree of eccentricity of cable insulation and sheath, greatly reduce the waste of the material that eccentric process and cable eccentricity cause, the degree of eccentricity of cable insulation and sheath is increased to 1% ~ 5% by original 10% ~ 15%, production efficiency improves greatly, greatly reduces the waste of the material that eccentric process and cable eccentricity cause.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is that jig of the present invention, squash type core rod and die sleeve coordinate schematic diagram.
Fig. 2 is the distribution map of bolt of the present invention in die sleeve surrounding.
Fig. 3 is jig structural representation of the present invention.
Fig. 4 is that squash type core rod of the present invention and die sleeve produce schematic diagram.
Attached number in the figure is:
Squash type core rod 1, bolt 2, die sleeve 3, jig 4, upper bolt 2-1, lower bolt 2-2, left bolt 2-3, right bolt 2-4, core rod locating surface 4-1, die sleeve locating surface 4-2, pin 4-3.
Detailed description of the invention
(embodiment 1)
See Fig. 1, Fig. 2 and Fig. 3, a kind of mould improving wisdom energy locomotive cable eccentricity degree of the present embodiment, comprises squash type core rod 1, bolt 2, die sleeve 3 and jig 4; Jig 4 is hollow structure, comprises core rod locating surface 4-1, die sleeve locating surface 4-2 and pin 4-3; The inclined-plane, front end of the inner surface of jig 4 is as core rod locating surface 4-1, and the outer surface of jig 4 is as die sleeve locating surface 4-2, and pin 4-3 runs through jig 4; The interior cone angle of core rod locating surface 4-1 and the cone angle of squash type core rod 1 are 45 °.Bolt 2 comprises fixes the upper bolt 2-1 of die sleeve 3, lower bolt 2-2, left bolt 2-3 and right bolt 2-4 from four direction.The minimum place internal diameter of squash type core rod 1 is 8.0mm, and the external diameter of jig 4 is 11.9mm, and the internal diameter of die sleeve 3 is 12.0mm.Pin 4-3 to be inserted in jig 4 and to be welded to connect with jig 4, and the height exposing die sleeve locating surface 4-2 is 20mm.
Processing technology, comprises following steps:
Step one: determine mould structure;
Step 2: first the bolt 2 of four direction is unscrewed;
Step 3: install squash type core rod 1 and die sleeve 3;
Step 4: insert from the inner chamber of die sleeve 3 after jig 4 surfaces externally and internally is coated with one deck lubricating oil, ensures that the cone angle of core rod locating surface 4-1 and squash type core rod 1 fits tightly;
Step 5: upper bolt 2-1, lower bolt 2-2, left bolt 2-3 and right bolt 2-4 are screwed, from four direction, die sleeve 3 is fixed, finally hold pin 4-3 and jig 4 is extracted out;
Step 6: conductor or insulated wire cores are passed squash type core rod 1 and die sleeve 3;
Step 7: start extruded material, material flows into from the conical surface of squash type core rod 1, and place is extruded at die sleeve 3, and the production outside diameter of cable is 12.0mm, the degree of eccentricity 2%.
Above-described specific embodiment; the object of patent of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. improve a mould for wisdom energy locomotive cable eccentricity degree, it is characterized in that: comprise squash type core rod (1), bolt (2), die sleeve (3) and jig (4); Described jig (4) is hollow structure, comprises core rod locating surface (4-1), die sleeve locating surface (4-2) and pin (4-3); The inclined-plane, front end of the inner surface of described jig (4) is as core rod locating surface (4-1), the outer surface of jig (4) is as die sleeve locating surface (4-2), and described pin (4-3) runs through jig (4); The interior cone angle of described core rod locating surface (4-1) and the cone angle of squash type core rod (1) are 45 °.
2. a kind of mould improving wisdom energy locomotive cable eccentricity degree according to claim 1, is characterized in that: described bolt (2) comprises fixes the upper bolt (2-1) of die sleeve (3), lower bolt (2-2), left bolt (2-3) and right bolt (2-4) from four direction.
3. a kind of mould improving wisdom energy locomotive cable eccentricity degree according to claim 2, it is characterized in that: the minimum place internal diameter of described squash type core rod (1) is 8.0mm, the external diameter of jig (4) is 11.9mm, and the internal diameter of die sleeve (3) is 12.0mm.
4. a kind of mould improving wisdom energy locomotive cable eccentricity degree according to claim 3, it is characterized in that: described pin (4-3) to be inserted in jig (4) and to be welded to connect with jig (4), and the height exposing die sleeve locating surface (4-2) is 20mm.
5. improve a processing technology for wisdom energy locomotive cable eccentricity degree, it is characterized in that comprising following steps:
Step one: determine that mould structure as claimed in claim 4;
Step 2: first the bolt (2) of four direction is unscrewed;
Step 3: install squash type core rod (1) and die sleeve (3);
Step 4: insert from the inner chamber of die sleeve (3) after jig (4) surfaces externally and internally is coated with one deck lubricating oil, ensures that core rod locating surface (4-1) fits tightly with the cone angle of squash type core rod (1);
Step 5: upper bolt (2-1), lower bolt (2-2), left bolt (2-3) and right bolt (2-4) are screwed, from four direction, die sleeve (3) is fixed, finally hold pin (4-3) and jig (4) is extracted out;
Step 6: conductor or insulated wire cores are passed squash type core rod (1) and die sleeve (3);
Step 7: start extruded material, material flows into from the conical surface of squash type core rod (1), and extruded at die sleeve (3) place, the production outside diameter of cable is 12.0mm, the degree of eccentricity 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498372.6A CN105058742B (en) | 2015-08-13 | 2015-08-13 | A kind of mould and processing technology for improving wisdom energy locomotive cable eccentricity degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498372.6A CN105058742B (en) | 2015-08-13 | 2015-08-13 | A kind of mould and processing technology for improving wisdom energy locomotive cable eccentricity degree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105058742A true CN105058742A (en) | 2015-11-18 |
| CN105058742B CN105058742B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510498372.6A Active CN105058742B (en) | 2015-08-13 | 2015-08-13 | A kind of mould and processing technology for improving wisdom energy locomotive cable eccentricity degree |
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| Country | Link |
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| CN (1) | CN105058742B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181786A (en) * | 2019-05-27 | 2019-08-30 | 山东北方现代化学工业有限公司 | A kind of temperature device for automatically regulating of chopped resin base fibre reinforced plastics prepreg moulding process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002050246A (en) * | 2000-08-07 | 2002-02-15 | Mitsubishi Cable Ind Ltd | Device for manufacturing coaxial cable |
| CN102347114A (en) * | 2010-08-02 | 2012-02-08 | 易明国 | Mold adjustment method of multilayer extrusion crosshead and mold adjustment assist device used in same |
| CN103302837A (en) * | 2013-07-11 | 2013-09-18 | 中阳建设集团有限公司 | Sleeve type three-layer co-extrusion distributor |
| CN104786460A (en) * | 2015-04-20 | 2015-07-22 | 江苏通能信息有限公司 | Easily-recognized colored ribbon cable and colored ribbon manufacturing process |
| CN204977371U (en) * | 2015-08-13 | 2016-01-20 | 远东电缆有限公司 | Improve mould of wisdom energy locomotive cable degree of eccentricity |
-
2015
- 2015-08-13 CN CN201510498372.6A patent/CN105058742B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002050246A (en) * | 2000-08-07 | 2002-02-15 | Mitsubishi Cable Ind Ltd | Device for manufacturing coaxial cable |
| CN102347114A (en) * | 2010-08-02 | 2012-02-08 | 易明国 | Mold adjustment method of multilayer extrusion crosshead and mold adjustment assist device used in same |
| CN103302837A (en) * | 2013-07-11 | 2013-09-18 | 中阳建设集团有限公司 | Sleeve type three-layer co-extrusion distributor |
| CN104786460A (en) * | 2015-04-20 | 2015-07-22 | 江苏通能信息有限公司 | Easily-recognized colored ribbon cable and colored ribbon manufacturing process |
| CN204977371U (en) * | 2015-08-13 | 2016-01-20 | 远东电缆有限公司 | Improve mould of wisdom energy locomotive cable degree of eccentricity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181786A (en) * | 2019-05-27 | 2019-08-30 | 山东北方现代化学工业有限公司 | A kind of temperature device for automatically regulating of chopped resin base fibre reinforced plastics prepreg moulding process |
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| Publication number | Publication date |
|---|---|
| CN105058742B (en) | 2017-07-21 |
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