CN104527018A - Color strip material and polyethylene sheath coextrusion die - Google Patents
Color strip material and polyethylene sheath coextrusion die Download PDFInfo
- Publication number
- CN104527018A CN104527018A CN201510029620.2A CN201510029620A CN104527018A CN 104527018 A CN104527018 A CN 104527018A CN 201510029620 A CN201510029620 A CN 201510029620A CN 104527018 A CN104527018 A CN 104527018A
- Authority
- CN
- China
- Prior art keywords
- polyethylene
- runner
- die sleeve
- vitta
- die
- 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.)
- Pending
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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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
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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
-
- 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
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a color strip material and polyethylene sheath coextrusion die, and belongs to the technical field of optical fiber processing. The color strip material and polyethylene sheath coextrusion die comprises a die sleeve and a die core, wherein a circle of annular runner and at least one push-back runner slot are formed in the outer surface of the die sleeve, and the push-back runner slot is connected with the annular runner and a polyethylene runner; the polyethylene runner is connected with a polyethylene feed opening. A color strip material is extruded into the polyethylene runner between the die core and the die sleeve through the annular runner and the push-back runner slot by a color strip extruder, a polyethylene sheath material is extruded into the polyethylene runner between the die core and the die sleeve through the polyethylene feed opening by an extruder, and the polyethylene sheath material and the core strip material converge and then form a core strip sheath layer; the die structure is simple, the manufacturing cost is low, and the versatility is good. The color strip material and polyethylene sheath coextrusion die is used for solving the problems in the existing mode that since the die sleeve is drilled to penetrate into an outlet part of the die sleeve, the consistency of width and thickness of a color strip and the surface appearance and overall roundness are difficult to control, and thus the widths and thicknesses of the color strip are different, and the color strip often protrudes out of or is sunken into the surface of an optical cable.
Description
Technical field
The present invention relates to a kind of vitta material and pe sheath co-extruding mould, belong to optical cable processing technique field.
Background technology
Vitta optical cable is the optical cable that a kind of surface at cable jacket increases by or some solid colors or multiple color bar, the color of vitta can be specified according to its needs by client, and vitta optical cable has fundamentally possessed the advantage that the variation of sheath color, construction and later maintenance are easily differentiated.The mould profile extruding at present vitta outside cable jacket is: the place punching entering die sleeve at vitta material penetrates into the outlet position of die sleeve, and when optical cable is produced, vitta material and protective cover material are expressed into moulded products on cable core structure simultaneously.The situation of this kind of mode to the appearance of the width of vitta, the uniformity of thickness and vitta cable and overall roundness is all difficult to control, when an optical cable extrudes many vittas, vitta width and variable thickness, vitta often protrudes or recessed optical cable surface, and the vitta extrusion cavities processing difficulties of mould, spacing between vitta and vitta is inconsistent, can not high-speed production steadily in the long term.
Summary of the invention
The object of the invention is to, for above-mentioned the deficiencies in the prior art, provide a kind of and be manufactured with annular channel at die sleeve outer surface, runner is extruded contrary direction to protective cover material and is opened and be shaped with back-pushed flow path groove.Vitta material is fully combined inside mould with polyethylene sheath material, thus when making production vitta width, thickness reaches standard and the roundness of the outward appearance of vitta and optical cable entirety is well solved; And Mould Machining is simple, cost of manufacture is low, the vitta material that versatility is good and pe sheath co-extruding mould.
The present invention realizes above-mentioned purpose by the following technical solutions:
This vitta material and pe sheath co-extruding mould are made up of die sleeve and core rod, it is characterized in that: described die sleeve outer surface is radially manufactured with a circle annular channel, and annular channel is connected with vitta material charging aperture; Die sleeve outer surface is manufactured with at least one back-pushed flow path groove along axis, and one end of back-pushed flow path groove is connected with annular channel, and the other end of back-pushed flow path groove is connected with polyethylene runner, and polyethylene runner is connected with polyethylene charging aperture; Vitta material is squeezed in the annular channel of die sleeve outer surface by vitta material charging aperture by vitta extruder, then is squeezed in the polyethylene runner between core rod and die sleeve by back-pushed flow path groove; Polyethylene sheath material is squeezed in the polyethylene runner between core rod and die sleeve by another extruder by polyethylene charging aperture, and converge with the vitta material extruded, then be synchronously extruded outside die sleeve, be coated on after stretched cooling on cable core, form vitta restrictive coating.
The present invention's beneficial effect is compared with prior art:
When this vitta material and pe sheath co-extruding mould are produced, the width of vitta and thickness can put the width of the back-pushed flow path groove of vitta material and the degree of depth effectively controls by pattern, and extrude structure by back-pushed, vitta material is fully combined with protective cover material inside mould, plasticizing effect is good, thus the roundness of the outward appearance of vitta and optical cable entirety is well controlled, reach technological standards requirement completely.And mould structure is simple, processing and fabricating cost is low, and only need adopt common polyethylene extruder head, versatility is good.Solve existing employing vitta material enter die sleeve place punching penetrate into die sleeve outlet position mode, all be difficult to control to the appearance of the width of vitta, the uniformity of thickness and vitta cable and the situation of overall roundness, when causing extruding many vittas on an optical cable, vitta width and variable thickness, vitta often protrudes or the problem on recessed optical cable surface.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of a kind of vitta material and pe sheath co-extruding mould;
Fig. 2 is A-A cross-sectional view of Fig. 1.
In figure: 1, die sleeve, 2, core rod, 3, annular channel, 4, back-pushed flow path groove, 5, polyethylene runner, 6, polyethylene charging aperture, 7, vitta material charging aperture.
Detailed description of the invention
This vitta material and pe sheath co-extruding mould are made up of die sleeve 1 and core rod 2, and described die sleeve 1 outer surface is radially manufactured with a circle annular channel 3, and annular channel 3 is connected with vitta material charging aperture 7; Die sleeve 1 outer surface is manufactured with at least one back-pushed flow path groove 4 along axis, and one end of back-pushed flow path groove 4 is connected with annular channel 3, and the other end of back-pushed flow path groove 4 is connected with polyethylene runner 5, and polyethylene runner 5 is connected with polyethylene charging aperture 6; Vitta material is squeezed in the annular channel 3 of die sleeve 1 outer surface by vitta material charging aperture 7 by vitta extruder, then is squeezed in the polyethylene runner 5 between core rod 2 and die sleeve 1 with all pressing by back-pushed flow path groove 4; Polyethylene sheath material is squeezed in the polyethylene runner 5 between core rod 2 and die sleeve 1 by another extruder by polyethylene charging aperture 6, and converge with the vitta material extruded, then be synchronously extruded outside die sleeve 1, be coated on after stretched cooling on cable core, form vitta restrictive coating.
This vitta material and pe sheath the co-extruding mould in process of production width of vitta and thickness can overlap 1 the paint width of back-pushed flow path groove 4 of billot and the degree of depth and effectively control by pattern, and extrude version by back-pushed flow path groove 4, vitta material is fully combined with polyethylene sheath material inside mould, plasticizing effect is good, thus the roundness of the outward appearance of vitta and optical cable entirety is well controlled, reach technological standards requirement completely.
The above is preferred embodiment of the present invention, above-mentioned illustrating does not do any pro forma restriction to flesh and blood of the present invention, any simple modification that person of an ordinary skill in the technical field has done above detailed description of the invention according to technical spirit of the present invention after having read this description or distortion, and the technology contents of above-mentioned announcement may be utilized to be changed or be modified to the Equivalent embodiments of equivalent variations, all still belong in the scope of technical solution of the present invention, and do not deviate from the spirit and scope of the invention.
Claims (1)
1. a vitta material and pe sheath co-extruding mould, it is made up of die sleeve (1) and core rod (2), it is characterized in that: described die sleeve (1) outer surface is radially manufactured with a circle annular channel (3), and annular channel (3) is connected with vitta material charging aperture (7); Die sleeve (1) outer surface is manufactured with at least one back-pushed flow path groove (4) along axis, one end of back-pushed flow path groove (4) is connected with annular channel (3), the other end of back-pushed flow path groove (4) is connected with polyethylene runner (5), and polyethylene runner (5) is connected with polyethylene charging aperture (6); Vitta material is squeezed in the annular channel (3) of die sleeve (1) outer surface by vitta material charging aperture (7) by vitta extruder, then is squeezed in the polyethylene runner (5) between core rod (2) and die sleeve (1) by back-pushed flow path groove (4); Polyethylene sheath material is squeezed in the polyethylene runner (5) between core rod (2) and die sleeve (1) by another extruder by polyethylene charging aperture (6), and converge with the vitta material extruded, then die sleeve (1) is synchronously extruded outward, be coated on after stretched cooling on cable core, form vitta restrictive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029620.2A CN104527018A (en) | 2015-01-21 | 2015-01-21 | Color strip material and polyethylene sheath coextrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029620.2A CN104527018A (en) | 2015-01-21 | 2015-01-21 | Color strip material and polyethylene sheath coextrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527018A true CN104527018A (en) | 2015-04-22 |
Family
ID=52842738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510029620.2A Pending CN104527018A (en) | 2015-01-21 | 2015-01-21 | Color strip material and polyethylene sheath coextrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189358A (en) * | 2017-12-28 | 2018-06-22 | 江苏亨通光电股份有限公司 | A kind of 8 word cable molds and preparation method thereof |
| CN110982146A (en) * | 2019-12-04 | 2020-04-10 | 临海伟星新型建材有限公司 | Noctilucent PE pipeline and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3323171A (en) * | 1965-10-18 | 1967-06-06 | Western Electric Co | Extrusion apparatus |
| JPS4998461U (en) * | 1972-12-15 | 1974-08-24 | ||
| JPH10329198A (en) * | 1997-05-30 | 1998-12-15 | Hitachi Cable Ltd | Method and apparatus for manufacturing filament |
| CN101704295A (en) * | 2009-11-02 | 2010-05-12 | 龚永祥 | Colour separation module for extrusion molding of double-colour tube |
| KR20100081031A (en) * | 2009-01-05 | 2010-07-14 | 애경산업(주) | Die head for molding of vessel having multi-tone and molding apparatus containing the same |
| CN103612378A (en) * | 2013-12-11 | 2014-03-05 | 湖北凯乐科技股份有限公司 | Nylon and polyethylene jacket double-layer co-extrusion mold |
| CN103991208A (en) * | 2014-06-03 | 2014-08-20 | 吴江通信电缆厂 | Extrusion molding mold for optical cable sheath carrying parallel steel wires |
| CN204414543U (en) * | 2015-01-21 | 2015-06-24 | 湖北凯乐科技股份有限公司 | A kind of vitta material and pe sheath co-extruding mould |
-
2015
- 2015-01-21 CN CN201510029620.2A patent/CN104527018A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3323171A (en) * | 1965-10-18 | 1967-06-06 | Western Electric Co | Extrusion apparatus |
| JPS4998461U (en) * | 1972-12-15 | 1974-08-24 | ||
| JPH10329198A (en) * | 1997-05-30 | 1998-12-15 | Hitachi Cable Ltd | Method and apparatus for manufacturing filament |
| KR20100081031A (en) * | 2009-01-05 | 2010-07-14 | 애경산업(주) | Die head for molding of vessel having multi-tone and molding apparatus containing the same |
| CN101704295A (en) * | 2009-11-02 | 2010-05-12 | 龚永祥 | Colour separation module for extrusion molding of double-colour tube |
| CN103612378A (en) * | 2013-12-11 | 2014-03-05 | 湖北凯乐科技股份有限公司 | Nylon and polyethylene jacket double-layer co-extrusion mold |
| CN103991208A (en) * | 2014-06-03 | 2014-08-20 | 吴江通信电缆厂 | Extrusion molding mold for optical cable sheath carrying parallel steel wires |
| CN204414543U (en) * | 2015-01-21 | 2015-06-24 | 湖北凯乐科技股份有限公司 | A kind of vitta material and pe sheath co-extruding mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189358A (en) * | 2017-12-28 | 2018-06-22 | 江苏亨通光电股份有限公司 | A kind of 8 word cable molds and preparation method thereof |
| CN110982146A (en) * | 2019-12-04 | 2020-04-10 | 临海伟星新型建材有限公司 | Noctilucent PE pipeline and preparation method thereof |
| CN110982146B (en) * | 2019-12-04 | 2023-05-12 | 临海伟星新型建材有限公司 | Noctilucent PE pipeline and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |