CN112596180A - Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable - Google Patents
Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable Download PDFInfo
- Publication number
- CN112596180A CN112596180A CN202011540051.5A CN202011540051A CN112596180A CN 112596180 A CN112596180 A CN 112596180A CN 202011540051 A CN202011540051 A CN 202011540051A CN 112596180 A CN112596180 A CN 112596180A
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- Prior art keywords
- eaa
- reinforcing
- coating
- butterfly cable
- sheath
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Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 51
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000001125 extrusion Methods 0.000 title claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000000155 melt Substances 0.000 claims abstract description 5
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000003351 stiffener Substances 0.000 claims description 5
- 238000005202 decontamination Methods 0.000 claims description 3
- 230000003588 decontaminative effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process and equipment for a reinforcing piece continuous coating and extruding butterfly cable and the butterfly cable, wherein the production process comprises the following steps: heating the three reinforcing members simultaneously; simultaneously coating the surfaces of the three reinforcements with EAA; cooling and solidifying the EAA coated on the surfaces of the three reinforcements; three reinforcing pieces with the surface EAA cured are pulled to a sheath forming extrusion die, and the optical cable is formed by using extrusion molding pressure; when the three reinforcing pieces with the EAA solidified on the surface are arranged in a mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core melts the EAA and is bonded with the sheath material. According to the invention, the three reinforcing parts are heated, so that the reinforcing parts are fully bonded with the EAA, and meanwhile, when the three reinforcing parts with the surface EAA solidified are in the mold core of the sheath forming extrusion mold, the sheath material fully plasticized in the mold core enables the EAA to be rapidly melted and bonded with the sheath material, so that the production efficiency can be greatly improved, and the bonding strength of the reinforcing parts and the sheath after the optical cable is formed is ensured.
Description
Technical Field
The invention relates to the technical field of optical cable processing, in particular to a production process and equipment for a reinforcing piece continuous coating and extruding butterfly cable and the butterfly cable.
Background
The butterfly cable is a novel user access optical cable, and the optical cable structure and various technical parameters are reasonably designed according to different application environments and laying conditions, so that the characteristics of an indoor soft optical cable and a self-supporting optical cable are integrated. The butterfly cable is the best candidate product for FTTX network solution, and plays a unique role in building intelligent buildings, digital cells, campus networks, local area networks and other networks.
The butterfly cable is usually matched with three reinforcing pieces during production, each reinforcing piece is coated independently, then the butterfly cable is discharged from a production line and is cooled and formed after extrusion molding, and finally the butterfly cable is rolled and delivered. The existing production mode has low production efficiency, and meanwhile, the bonding strength of the reinforcing part and the sheath after the optical cable is molded is insufficient, so that the performance of the optical cable is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production process of a reinforcing piece continuous coating and extruding butterfly cable with high production efficiency and good product performance. The technical scheme is as follows:
in order to solve the problems, the invention provides a production process of a reinforcing piece continuous coating and extruding butterfly cable, which comprises the following steps:
heating the three reinforcing members simultaneously;
simultaneously coating the surfaces of the three reinforcements with EAA;
cooling and solidifying the EAA coated on the surfaces of the three reinforcements;
three reinforcing pieces with the surface EAA cured are pulled to a sheath forming extrusion die, and the optical cable is formed by using extrusion molding pressure; when the three reinforcing pieces with the EAA solidified on the surface are arranged in a mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core melts the EAA and is bonded with the sheath material.
As a further improvement of the present invention, the heating of the three reinforcements simultaneously further comprises: three stiffeners were surface desmeared.
As a further improvement of the present invention, the heating three reinforcing members simultaneously includes: and simultaneously heating the three reinforcing pieces by using intermediate-frequency heating equipment.
As a further improvement of the present invention, the simultaneous surface EAA coating of three reinforcements specifically includes: three reinforcements were surface coated simultaneously using an EAA coating die with three die holes.
As a further improvement of the invention, the cooling and curing of the EAA coated on the surface of the three reinforcements specifically comprises the following steps: and cooling and solidifying the EAA coated on the surfaces of the three reinforcements by using air cooling solidification equipment.
The invention also provides a butterfly cable produced by any one of the production processes.
In order to solve the above problems, the present invention also provides a butterfly cable production apparatus, which includes:
the heating equipment is used for heating the three reinforcing pieces simultaneously;
the EAA coating die is used for simultaneously carrying out surface EAA coating on the three heated reinforcing pieces;
the air cooling solidification equipment is used for cooling and solidifying the EAA coated on the surfaces of the three reinforcing pieces;
the sheath forming extrusion die is used for forming the optical cable by using extrusion molding pressure; when the three reinforcing pieces with the EAA solidified on the surface are arranged in a mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core melts the EAA and is bonded with the sheath material.
As a further improvement of the present invention, the butterfly cable production apparatus further includes:
and the decontamination equipment is used for decontaminating the surfaces of the three reinforcing pieces before heating.
As a further improvement of the invention, the heating device is a medium-frequency heating device.
The invention has the beneficial effects that:
according to the production process of the reinforcement continuous coating and extruding butterfly cable, the three reinforcements are heated, so that the reinforcements are fully bonded with the EAA, meanwhile, when the three reinforcements with the solidified surfaces of the EAA are arranged in the mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core enables the EAA to be rapidly melted and bonded with the sheath material, the production efficiency can be greatly improved, and the bonding strength of the reinforcements and the sheath after the optical cable is formed is ensured.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a flow chart of a process for producing a reinforcing member continuous coating extrusion butterfly cable according to a preferred embodiment of the invention;
FIG. 2 is a schematic structural diagram of a butterfly cable production device in a preferred embodiment of the invention;
FIG. 3 is a schematic diagram of the structure of an EAA coating die in a preferred embodiment of the present invention;
fig. 4 is a schematic structural view of a sheath forming extrusion die in a preferred embodiment of the present invention.
Description of the labeling: 1. a reinforcement; 2. decontamination equipment; 3. a heating device; 4. coating a die with EAA; 5. air cooling and solidifying equipment; 6. and (4) forming and extruding the sheath.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1, a process for producing a reinforcing member continuous coating and extruding butterfly cable according to a preferred embodiment of the present invention includes the following steps:
and S10, heating the three reinforcing pieces simultaneously. Optionally, the three reinforcing pieces are heated simultaneously by using intermediate frequency heating equipment, so that rapid heating can be realized, and the reinforcing pieces are ensured to be fully bonded with the EAA.
S20, three stiffeners were EAA coated simultaneously. Alternatively, three reinforcements may be surface coated simultaneously using an EAA coating die with three die holes.
And S30, cooling and solidifying the EAA coated on the surfaces of the three reinforcements. Optionally, the EAA coated on the surfaces of the three reinforcements is cooled and solidified by using air-cooled solidification equipment.
S40, drawing the three reinforcing pieces with the surface EAA cured to a sheath forming extrusion die, and forming the optical cable by using extrusion pressure; when the three reinforcements with the EAA solidified on the surface are arranged in the mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core enables the EAA to be rapidly melted and bonded with the sheath material, and the bonding strength of the reinforcements and the sheath after the optical cable is formed is ensured.
In some embodiments, step S10 is preceded by the steps of:
three stiffeners were surface desmeared. Impurities on the surface of the reinforcing piece can be removed, and the reliability of subsequent processing is improved.
According to the production process of the reinforcement continuous coating and extruding butterfly cable, the three reinforcements are heated, so that the reinforcements are fully bonded with the EAA, meanwhile, when the three reinforcements with the solidified surfaces of the EAA are arranged in the mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core enables the EAA to be rapidly melted and bonded with the sheath material, the production efficiency can be greatly improved, and the bonding strength of the reinforcements and the sheath after the optical cable is formed is ensured.
The invention also discloses a butterfly cable which is produced by the butterfly cable production process in any embodiment.
The invention also discloses butterfly cable production equipment in the preferred embodiment, which comprises heating equipment 3, an EAA coating mould 4, air cooling solidification equipment 5 and a sheath molding extrusion mould 6.
The heating device 3 is used for heating the three reinforcing pieces 1 simultaneously; the EAA coating die 4 is used for simultaneously coating the surfaces of the three heated reinforcing pieces 1 with EAA; alternatively, the EAA coating die 4 has a three-hole die orifice. The air cooling solidification equipment 5 is used for cooling and solidifying the EAA coated on the surfaces of the three reinforcing pieces 1; the sheath forming extrusion die 6 is used for forming the optical cable by using extrusion molding pressure; when the three reinforcing pieces 1 with the surfaces EAA solidified are arranged in a mold core of the sheath forming and extruding mold, sheath materials fully plasticized in the mold core enable the EAA to be rapidly melted and bonded with the sheath materials, and bonding strength of the reinforcing pieces 1 and the sheath after the optical cable is formed is guaranteed. .
Optionally, the apparatus further comprises a desmear apparatus 1 for desmear of the three stiffeners 1 prior to heating.
Optionally, the heating device 3 is a medium-frequency heating device. Rapid heating can be achieved to ensure that the reinforcement 1 is fully bonded to the EAA.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (9)
1. A production process of a continuous coating and extruding butterfly cable of a reinforcing piece is characterized by comprising the following steps:
heating the three reinforcing members simultaneously;
simultaneously coating the surfaces of the three reinforcements with EAA;
cooling and solidifying the EAA coated on the surfaces of the three reinforcements;
three reinforcing pieces with the surface EAA cured are pulled to a sheath forming extrusion die, and the optical cable is formed by using extrusion molding pressure; when the three reinforcing pieces with the EAA solidified on the surface are arranged in a mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core melts the EAA and is bonded with the sheath material.
2. A process for producing a strength member coated continuous extrusion butterfly cable according to claim 1, wherein the heating of three strength members is performed simultaneously, and wherein the process further comprises: three stiffeners were surface desmeared.
3. The production process of the reinforcing piece continuous coating and extruding butterfly cable according to claim 1, wherein the heating of three reinforcing pieces simultaneously comprises: and simultaneously heating the three reinforcing pieces by using intermediate-frequency heating equipment.
4. The production process of the reinforcement continuous-coating and extrusion butterfly cable according to claim 1, wherein the simultaneous surface EAA coating of three reinforcements comprises: three reinforcements were surface coated simultaneously using an EAA coating die with three die holes.
5. The production process of the reinforcement continuous-coating and extruding butterfly cable according to claim 1, wherein the cooling and curing of the EAA coated on the surfaces of the three reinforcements specifically comprises: and cooling and solidifying the EAA coated on the surfaces of the three reinforcements by using air cooling solidification equipment.
6. A butterfly cable, characterized in that it is produced by a production process according to any one of claims 1 to 5.
7. A butterfly cable production facility, characterized by comprising:
the heating equipment is used for heating the three reinforcing pieces simultaneously;
the EAA coating die is used for simultaneously carrying out surface EAA coating on the three heated reinforcing pieces;
the air cooling solidification equipment is used for cooling and solidifying the EAA coated on the surfaces of the three reinforcing pieces;
the sheath forming extrusion die is used for forming the optical cable by using extrusion molding pressure; when the three reinforcing pieces with the EAA solidified on the surface are arranged in a mold core of the sheath forming and extruding mold, the sheath material fully plasticized in the mold core melts the EAA and is bonded with the sheath material.
8. A butterfly cable production apparatus as claimed in claim 7, further comprising:
and the decontamination equipment is used for decontaminating the surfaces of the three reinforcing pieces before heating.
9. The process for producing a reinforcing member continuous coating and extruding butterfly cable according to claim 7, wherein the heating device is a medium-frequency heating device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011540051.5A CN112596180A (en) | 2020-12-23 | 2020-12-23 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
| PCT/CN2021/113732 WO2022134633A1 (en) | 2020-12-23 | 2021-08-20 | Reinforcer continuous coating and continuous extruding butterfly optical cable production process, device, and butterfly optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011540051.5A CN112596180A (en) | 2020-12-23 | 2020-12-23 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112596180A true CN112596180A (en) | 2021-04-02 |
Family
ID=75200437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011540051.5A Pending CN112596180A (en) | 2020-12-23 | 2020-12-23 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112596180A (en) |
| WO (1) | WO2022134633A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460701A (en) * | 2022-01-12 | 2022-05-10 | 富通集团有限公司 | Dysmorphism sheath processingequipment |
| WO2022134633A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏永鼎股份有限公司 | Reinforcer continuous coating and continuous extruding butterfly optical cable production process, device, and butterfly optical cable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116880015B (en) * | 2023-07-20 | 2024-03-29 | 宏安集团有限公司 | Butterfly cable with environment monitoring function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071191A (en) * | 2007-06-19 | 2007-11-14 | 上海晓宝增强塑料有限公司 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
| CN203930152U (en) * | 2014-06-06 | 2014-11-05 | 浙江万马天屹通信线缆有限公司 | Anti-torsion self-bearing type Access Network butterfly optical cable |
| CN204389752U (en) * | 2014-08-29 | 2015-06-10 | 无锡市宏达光电有限公司 | A kind of processing unit (plant) of reinforced outdoor butterfly optical cable |
| CN105365185A (en) * | 2015-11-26 | 2016-03-02 | 南京华信藤仓光通信有限公司 | Production method and production device for SZ framework core for cable |
| CN106199879A (en) * | 2016-08-23 | 2016-12-07 | 深圳市特发信息光网科技股份有限公司 | A kind of butterfly optical cable metallic stiffening element surface plastic coating technique |
| CN211208018U (en) * | 2019-12-16 | 2020-08-07 | 江苏俊知光电通信有限公司 | Soft photoelectric hybrid cable for wiring |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7397992B1 (en) * | 2007-04-30 | 2008-07-08 | Corning Cable Systems Llc | Tubeless fiber optic cables having strength members and methods therefor |
| CN201387501Y (en) * | 2009-03-13 | 2010-01-20 | 西古光纤光缆有限公司 | Small high-performance short-distance FTTH outdoor self-supporting optical cable |
| KR101048486B1 (en) * | 2009-12-01 | 2011-07-12 | 엘에스전선 주식회사 | Flat drop cable |
| US8682124B2 (en) * | 2011-10-13 | 2014-03-25 | Corning Cable Systems Llc | Access features of armored flat fiber optic cable |
| CN112596180A (en) * | 2020-12-23 | 2021-04-02 | 江苏永鼎股份有限公司 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
-
2020
- 2020-12-23 CN CN202011540051.5A patent/CN112596180A/en active Pending
-
2021
- 2021-08-20 WO PCT/CN2021/113732 patent/WO2022134633A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071191A (en) * | 2007-06-19 | 2007-11-14 | 上海晓宝增强塑料有限公司 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
| CN203930152U (en) * | 2014-06-06 | 2014-11-05 | 浙江万马天屹通信线缆有限公司 | Anti-torsion self-bearing type Access Network butterfly optical cable |
| CN204389752U (en) * | 2014-08-29 | 2015-06-10 | 无锡市宏达光电有限公司 | A kind of processing unit (plant) of reinforced outdoor butterfly optical cable |
| CN105365185A (en) * | 2015-11-26 | 2016-03-02 | 南京华信藤仓光通信有限公司 | Production method and production device for SZ framework core for cable |
| CN106199879A (en) * | 2016-08-23 | 2016-12-07 | 深圳市特发信息光网科技股份有限公司 | A kind of butterfly optical cable metallic stiffening element surface plastic coating technique |
| CN211208018U (en) * | 2019-12-16 | 2020-08-07 | 江苏俊知光电通信有限公司 | Soft photoelectric hybrid cable for wiring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134633A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏永鼎股份有限公司 | Reinforcer continuous coating and continuous extruding butterfly optical cable production process, device, and butterfly optical cable |
| CN114460701A (en) * | 2022-01-12 | 2022-05-10 | 富通集团有限公司 | Dysmorphism sheath processingequipment |
| CN114460701B (en) * | 2022-01-12 | 2023-05-09 | 富通集团有限公司 | Dysmorphism sheath processingequipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022134633A1 (en) | 2022-06-30 |
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Application publication date: 20210402 |
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