CN103612378A - Nylon and polyethylene jacket double-layer co-extrusion mold - Google Patents
Nylon and polyethylene jacket double-layer co-extrusion mold Download PDFInfo
- Publication number
- CN103612378A CN103612378A CN201310669040.0A CN201310669040A CN103612378A CN 103612378 A CN103612378 A CN 103612378A CN 201310669040 A CN201310669040 A CN 201310669040A CN 103612378 A CN103612378 A CN 103612378A
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- nylon
- mold
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- extrusion
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a nylon and polyethylene jacket double-layer co-extrusion mold, belonging to the technical field of optical cable processing molds. The double-layer co-extrusion mold consists of a mold sleeve and a mold core, wherein a circular cone hole in the mold sleeve is sheathed with a circular cone structure of the mold core, a flow channel A and a flow channel B which are connected by a flow dividing groove are arranged on the outer surface of the mold sleeve, a polyethylene flow channel is formed between the mold sleeve and the mold core, the flow channel A is connected with a nylon feeding hole, and the flow channel B is connected with a nylon discharge hole. According to the nylon and polyethylene jacket double-layer co-extrusion mold provided by the invention, a middle mold of the traditional double-layer co-extrusion mold is omitted, the structure is simple, accessories are eliminated, the processing speed is high during one-time extrusion molding of a double-layer jacket, the operation is convenient, and the nylon and polyethylene jacket double-layer co-extrusion mold can be matched with a common polyethylene extrusion head, and is high in universality and the production cost is effectively reduced; the nylon and polyethylene jacket double-layer co-extrusion mold solves the problems that the molding speed is low in a method of twice extrusion of the existing nylon and polyethylene co-extrusion mold, the production efficiency is low, the composition of the existing double-layer co-extrusion mold is complex, a dedicated head is required to be equipped for production in a one-to-one manner, the universality is poor, and the producing cost is high.
Description
Technical field
The present invention relates to a kind of nylon and pe sheath double-layer coextrusion mould, belong to optical cable processing mold technical field.
Background technology
The pe sheath skin of optical cable all can wrap up one deck nylon sheath wire conventionally again, effectively to prevent mouse, the destruction of ant to optical cable.At present nylon sheath wire is extruded in to optical cable pe sheath skin and generally has two kinds of modes: a kind of is that first extrusion molding goes out layer of polyethylene sheath, after pe sheath moulding, then extrudes one deck nylon sheath wire at pe sheath skin; Another kind is that the double-layer coextrusion mould that adopts core rod, intermediate die, die sleeve to form is extruded rear one-body molded by polyethylene and nylon simultaneously.Adopt first kind of way, the extrusion molding at twice of pe sheath and nylon sheath wire, has relatively high expectations to the surface quality after pe sheath moulding, and shaping speed is slow, and production efficiency is lower.Although adopt the one-shot forming of double-layer coextrusion mould energy, mould forms complicated, and needs to be equipped with special had, and versatility is poor, and general a kind of mould can only be processed a kind of optical cable of specification, and processing cost is high.
Summary of the invention
The object of the invention is to, provide a kind of die sleeve outer surface to be manufactured with two runners, between two runners, by splitter box, connect, simple in structure, easy to process, without configure dedicated head, pe sheath and nylon sheath wire integrated molding speed are fast, the nylon that working (machining) efficiency is high and pe sheath double-layer coextrusion mould.
The present invention realizes above-mentioned purpose by the following technical solutions
This nylon and pe sheath double-layer coextrusion mould consist of die sleeve and core rod, it is characterized in that: in die sleeve, be manufactured with conical bore, outer surface one end of core rod is made into conical structure, and the conical structure of core rod is sleeved in the conical bore of die sleeve; Die sleeve outer surface is manufactured with runner A and runner B, between runner A and runner B, by splitter box, is connected; Between die sleeve and core rod, be formed with polyethylene runner, runner A is connected with nylon charging aperture, and runner B is connected with nylon discharging opening.
The present invention's beneficial effect is compared with prior art
This nylon and pe sheath double-layer coextrusion mould have saved the intermediate die of traditional double-deck co-extruding mould, only need to use core rod and die sleeve, simple in structure, have saved accessory.Meanwhile, the A making by die sleeve outer surface, two runners of B, realize the disposable extrusion molding of the two-layer sheath of nylon and polyethylene, and process velocity is fast, easy to operate.This nylon and pe sheath double-layer coextrusion mould can assemble common polythene extruder head, and applied widely, highly versatile, effectively reduces production cost.Solved that the mode shaping speed of extruding at twice in existing nylon and polyethylene co-extruding mould is slow, production efficiency is low, and existing double-layer coextrusion mould form complicated, need to be equipped with special had and produce one to one, versatility is poor, the problem that production cost is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of nylon and pe sheath double-layer coextrusion mould;
Fig. 2 is A-A sectional structure schematic diagram of Fig. 1.
In figure: 1, die sleeve, 2, core rod, 3, runner A, 4, runner B, 5, splitter box, 6, polyethylene runner, 7, nylon discharging opening, 8, conical bore, 9, conical structure.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail:
This nylon and pe sheath double-layer coextrusion mould consist of die sleeve 1 and core rod 2, in die sleeve 1, be manufactured with conical bore 8, outer surface one end of core rod 2 is made into conical structure 9, the conical structure 9 of core rod 2 is sleeved in the conical bore 8 of die sleeve 1, between die sleeve 1 and core rod 2, be formed with a polyethylene runner 6, die sleeve 1 outer surface is manufactured with runner A3 and runner B4, between runner A3 and runner B4, by splitter box 5, is connected; Runner A3 is connected with nylon charging aperture, and runner B4 is connected (referring to accompanying drawing 1～2) with nylon discharging opening 7.
The course of work of this nylon and pe sheath double-layer coextrusion mould is as follows:
The first step, nylon is squeezed in the runner A3 of die sleeve 1 outer surface by an extruder, then by the splitter box 5 between runner A3 and runner B4, be squeezed into equably in runner B4, be more evenly pressed in the polyethylene runner 6 between die sleeve 1 and core rod 2 by nylon discharging opening 7;
Second step, polyethylene is squeezed in the polyethylene runner 6 between die sleeve 1 and core rod 2 by another extruder, now polyethylene converges with the nylon material of extruding by nylon discharging opening 7 before, then be synchronously extruded outside mould, after stretched, cooling, be coated on cable core, and form nylon and the two restrictive coatings of polyethylene.
This nylon and pe sheath double-layer coextrusion mould have removed the intermediate die of traditional moulds, only need to use core rod and die sleeve, owing to having reduced accessory, therefore assembling is simple, save material.The runner A making by die sleeve outer surface and runner B, nylon and polyethylene can disposable extrusion moldings, guaranteed pe sheath appearance quality.And can be supporting with common polythene extruder head, expanded the range of work, highly versatile, effectively reduces production cost, has greatly improved working (machining) efficiency.
The above is the specific embodiment of this invention, above-mentioned not illustrating is construed as limiting flesh and blood of the present invention, person of an ordinary skill in the technical field can make an amendment or be out of shape the above-mentioned specific embodiment after having read this description, and does not deviate from the spirit and scope of the invention.
Claims (1)
1. a nylon and pe sheath double-layer coextrusion mould, it consists of die sleeve (1) and core rod (2), it is characterized in that: in die sleeve (1), be manufactured with conical bore (8), outer surface one end of core rod (2) is made into conical structure (9), and the conical structure (9) of core rod (2) is sleeved in the conical bore (8) of die sleeve (1); Die sleeve (1) outer surface is manufactured with runner A(3) and runner B(4), runner A(3) with runner B(4) between by splitter box (5), be connected; Between die sleeve (1) and core rod (2), be formed with polyethylene runner (6), runner A(3) be connected runner B(4 with nylon charging aperture) be connected with nylon discharging opening (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669040.0A CN103612378A (en) | 2013-12-11 | 2013-12-11 | Nylon and polyethylene jacket double-layer co-extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669040.0A CN103612378A (en) | 2013-12-11 | 2013-12-11 | Nylon and polyethylene jacket double-layer co-extrusion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103612378A true CN103612378A (en) | 2014-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669040.0A Pending CN103612378A (en) | 2013-12-11 | 2013-12-11 | Nylon and polyethylene jacket double-layer co-extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103612378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527018A (en) * | 2015-01-21 | 2015-04-22 | 湖北凯乐科技股份有限公司 | Color strip material and polyethylene sheath coextrusion die |
| CN111037879A (en) * | 2019-10-14 | 2020-04-21 | 江苏法尔胜光通有限公司 | Extrusion molding die and extrusion molding process for dissimilar material composite sheath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6485731A (en) * | 1987-05-20 | 1989-03-30 | Bekum Maschf Gmbh | Co-extrusion head |
| US5733491A (en) * | 1995-04-14 | 1998-03-31 | Grossfillex S.A.R.L. | Extrusion device and process for two-layer section members |
| CN1791502A (en) * | 2003-05-16 | 2006-06-21 | 拜尔薄膜欧洲有限责任公司 | Multi-wall sheet without the triangle effect, coated by coextrusion |
| CN102802912A (en) * | 2009-06-11 | 2012-11-28 | 曼夫瑞德·A·A·鲁波克 | Die tooling for extruding tubular product |
| CN203592661U (en) * | 2013-12-11 | 2014-05-14 | 湖北凯乐科技股份有限公司 | Double-layer co-extrusion die for nylon and polyethylene sheath |
-
2013
- 2013-12-11 CN CN201310669040.0A patent/CN103612378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6485731A (en) * | 1987-05-20 | 1989-03-30 | Bekum Maschf Gmbh | Co-extrusion head |
| US5733491A (en) * | 1995-04-14 | 1998-03-31 | Grossfillex S.A.R.L. | Extrusion device and process for two-layer section members |
| CN1791502A (en) * | 2003-05-16 | 2006-06-21 | 拜尔薄膜欧洲有限责任公司 | Multi-wall sheet without the triangle effect, coated by coextrusion |
| CN102802912A (en) * | 2009-06-11 | 2012-11-28 | 曼夫瑞德·A·A·鲁波克 | Die tooling for extruding tubular product |
| CN203592661U (en) * | 2013-12-11 | 2014-05-14 | 湖北凯乐科技股份有限公司 | Double-layer co-extrusion die for nylon and polyethylene sheath |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527018A (en) * | 2015-01-21 | 2015-04-22 | 湖北凯乐科技股份有限公司 | Color strip material and polyethylene sheath coextrusion die |
| CN111037879A (en) * | 2019-10-14 | 2020-04-21 | 江苏法尔胜光通有限公司 | Extrusion molding die and extrusion molding process for dissimilar material composite sheath |
| CN111037879B (en) * | 2019-10-14 | 2021-11-05 | 江苏法尔胜光通有限公司 | Extrusion molding die and extrusion molding process for dissimilar material composite sheath |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |