CN115542488A - Full-dry type optical fiber ribbon cable and processing method thereof - Google Patents
Full-dry type optical fiber ribbon cable and processing method thereof Download PDFInfo
- Publication number
- CN115542488A CN115542488A CN202211258537.9A CN202211258537A CN115542488A CN 115542488 A CN115542488 A CN 115542488A CN 202211258537 A CN202211258537 A CN 202211258537A CN 115542488 A CN115542488 A CN 115542488A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- dry
- ribbon
- optical
- water
- 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
Links
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
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
-
- 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
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention belongs to the technical field of communication optical cable manufacturing, and discloses a belt full-dry type ribbon optical cable and a processing method thereof. The optical fiber ribbon comprises a plurality of special optical fibers, a loose tube and an outer sheath, wherein a plurality of bonding areas are arranged on the contact surfaces of the adjacent special optical fibers at intervals and used for coating resin to bond the adjacent special optical fibers, and the distance between the adjacent bonding areas for bonding the same two special optical fibers is 3-6 times of the length of the bonding areas along the length direction of the special optical fibers, so that the optical fiber ribbon can be curled into an optical fiber bundle or expanded in a net shape; a plurality of optical fiber bundles are arranged in the loose tube, and a first water-blocking tape is arranged between the loose tube and the optical fiber bundles; the loose tube penetrates through the outer sheath, the dry-type water blocking material is filled in the outer sheath, and/or a second water blocking tape is arranged between the outer sheath and the dry-type water blocking material, so that the optical fiber ribbon is processed in a full-dry mode. The invention improves the curling performance of the optical fiber ribbon on the basis of not using factice, so that different optical fiber ribbons can be mutually matched, and the number of optical fiber cores in the optical cable is increased.
Description
Technical Field
The invention relates to the technical field of communication optical cable manufacturing, in particular to a belt full-dry type ribbon optical cable and a processing method thereof.
Background
An optical cable is a communication line for transmitting optical signals, and generally includes a plurality of optical fibers wrapped in an outer sheath as a transmission medium. The multi-core optical fibers are adhered to form a group or a band, and the optical fibers form an optical cable, namely the ribbon optical cable.
As shown in fig. 1, a plurality of sets of optical fiber ribbons 1 ' are inserted into a loose tube 2 ', and the periphery of the optical fiber ribbons 1 ' is filled with a fiber paste 21 ', and the loose tube 2 ' is inserted into an outer jacket 3 ' and filled with a paste 33 ', and is twisted around a central reinforcement 31 ', and an auxiliary reinforcement 32 ' is provided to form a stable cable core structure.
However, the existing ribbon optical cable structure is low in natural degradation capability because the fiber paste and the factice are used for filling during processing and manufacturing, so that environmental pollution is easily caused and the cleaning is inconvenient; meanwhile, the existing optical fiber ribbon structure is not easy to miniaturize the optical cable and improve the number of optical fiber cores in the optical cable, meanwhile, after the optical fiber ribbon forms the optical fiber bundle, the bending performance is poor, even if the optical fiber ribbon is restored to the state of the optical fiber ribbon again, the obtained optical fiber ribbon does not have good bending performance, and the applicability in application is low.
Disclosure of Invention
The invention aims to provide a tape full-dry type ribbon optical cable and a processing method thereof, which improve the bending performance of an optical fiber bundle on the basis of not using factice, enable different optical fiber tapes to be matched with each other and improve the number of optical fiber cores in the optical cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fully dry optical ribbon cable comprising:
the optical fiber ribbon comprises a plurality of special optical fibers, a plurality of bonding areas are arranged on the surfaces of two adjacent special optical fibers at intervals, the bonding areas are used for coating resin so that the adjacent special optical fibers can be bonded with each other, and the distance between the adjacent bonding areas for bonding the same two special optical fibers is 3-6 times of the length of the bonding areas along the length direction of the special optical fibers, so that the optical fiber ribbon can be curled to form an optical fiber bundle or expanded in a net shape to improve the curling performance of the optical fiber ribbon;
the loose tube is internally provided with a plurality of optical fiber bundles, and a first water blocking tape is arranged between the inner wall of the loose tube and the optical fiber bundles;
the loose tube penetrates through the outer sheath, the outer sheath is filled with a dry water-blocking material, and/or a second water-blocking tape is arranged between the outer sheath and the dry water-blocking material, so that the optical fiber ribbon cable is processed in a full-dry mode.
Optionally, the ribbon is crimped to form a bundle of optical fibers, and the bundle of optical fibers can be expanded in a web-like manner to provide reversibility of the ribbon crimp.
Optionally, the length of the adhesive region is 5 to 15mm.
Optionally, the special optical fiber comprises an optical fiber with an outer diameter of 160 μm to 200 μm, an optical fiber with an outer diameter of 245 μm, or a multimode optical fiber.
Optionally, the resin has a bond strength greater than or equal to 6.5N/cm 2 So that the adhesive force on the optical fiber ribbon is greater than or equal to 5gf.
Optionally, an outer sheath reinforcing member is arranged on the outer sheath in a penetrating mode to enhance the tensile property.
Another aspect of the present invention provides a method for processing an all-dry optical fiber ribbon cable, comprising:
coating the resin on the bonding area to bond the special optical fiber to form the optical fiber ribbon;
crimping the optical fiber ribbon to form the optical fiber bundle;
placing a plurality of optical fiber bundles on the first water blocking tape, and enabling the optical fiber bundles and the first water blocking tape to penetrate through a forming die, so that the first water blocking tape coats the optical fiber bundles;
penetrating a plurality of optical fiber bundles coated with the first water-blocking tape into the loose tube;
and cabling is carried out, the dry-type water-blocking material is wrapped by the plurality of loose tubes after being twisted, the loose tubes are arranged in the outer sheath in a penetrating way, and the second water-blocking tape is wrapped outside the loose tubes and the dry-type water-blocking material.
Optionally, the molding angle of the molding die is 30 ° to 80 °, so that the first water blocking tape covers the optical fiber bundle.
Optionally, after the resin is applied to the bonding region, the method further includes:
and processing and shaping the optical fiber ribbon by a continuous curing process.
Optionally, before cabling, the method further comprises:
and enabling the loose tube to enter a vacuum negative pressure water tank, wherein the vacuum negative pressure water tank can change the outer diameter of the loose tube by adjusting the pressure.
Has the advantages that:
the invention provides a full-dry type ribbon optical cable and a processing method thereof.A bonding area is arranged on the contact surface of two adjacent special optical fibers, and resin is coated on the bonding area, so that the adjacent special optical fiber ribbons can be bonded with each other through the resin to form the optical fiber ribbons; because the distance between different bonding areas for bonding two same special optical fibers is 3-6 times of the length of the bonding areas in the length direction of the special optical fibers, the formed optical fiber ribbon can be curled to form an optical fiber bundle and also can be expanded in a net shape, has good curling performance and stronger applicability, is convenient for reducing the integral volume of the optical cable, improving the core number of the special optical fibers in the optical cable and optimizing the arrangement mode of the optical cable; meanwhile, the loose tube of the full-dry type optical fiber ribbon cable is internally coated with the first water-blocking tape and the second water-blocking tape in the outer sheath, and the optical fiber ribbon cable can be filled with dry water-blocking materials to realize water prevention, so that the environmental pollution can be reduced. The invention provides a full-dry type ribbon optical cable with ribbons and a processing method thereof, which improve the bending performance of an optical fiber bundle on the basis of not using factice, so that different optical fiber ribbons can be matched with each other, and the number of optical fiber cores in the optical cable is increased.
Drawings
FIG. 1 is a schematic structural view of a prior art ribbon cable;
FIG. 2 is a schematic diagram of a ribbon and splicing section of a fully dry ribbon cable according to an embodiment of the present invention;
FIG. 3 is a schematic representation of ribbon curl for a fully dry ribbon cable provided by an embodiment of the present invention;
FIG. 4 is a schematic view of a post-ribbon-crimp bonding area of a fully dry ribbon cable provided by an embodiment of the present invention;
FIG. 5 is a schematic representation of a ribbon reticulation of a fully dry ribbon cable provided by an embodiment of the present invention;
FIG. 6 is a schematic diagram of a plurality of loose tubes of a fully dry optical ribbon cable according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a single loose tube of a fully dry optical ribbon cable provided by an embodiment of the present invention;
FIG. 8 is a flow chart of a method of processing a fully dry fiber optic ribbon cable according to an embodiment of the present invention;
FIG. 9 is a top view of a forming die provided by an embodiment of the present invention;
fig. 10 is a side view of a molding die provided by an embodiment of the present invention.
In the figure:
1', optical fiber ribbon; 2', loosening the sleeve; 21', and fiber paste; 3', an outer sheath; 31', a central reinforcement; 32', an auxiliary reinforcement; 33', ointment;
1. an optical fiber ribbon; 11. a special optical fiber; 12. an adhesive area;
2. loosening the sleeve; 21. a first water blocking tape;
3. an outer sheath; 31. a central reinforcement; 32. an auxiliary reinforcement; 33. a dry water-blocking material; 34. a second water blocking tape; 35. an outer jacket reinforcement;
4. an optical fiber bundle;
5. forming a mold; 51. a stopper portion; 52. a guide portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 2 to 7, the present invention provides a full-dry type optical fiber ribbon cable including an optical fiber ribbon 1, a loose tube 2, and an outer sheath 3. The optical fiber ribbon 1 comprises a plurality of special optical fibers 11, a plurality of bonding areas 12 are arranged on the contact surfaces of two adjacent special optical fibers at intervals, the bonding areas 12 are used for coating resin so that the adjacent special optical fibers 11 can be connected with each other, and the distance between the adjacent bonding areas 12 used for bonding the same two special optical fibers 11 is 3-6 times of the length of the bonding areas 12 along the length direction of the special optical fibers, so that the optical fiber ribbon 1 can be curled to form an optical fiber bundle 4 or expanded in a net shape to improve the curling performance of the optical fiber ribbon 1; a plurality of optical fiber bundles 4 are arranged in the loose tube 2, and a first water-blocking tape 21 is arranged between the inner wall of the loose tube 2 and the optical fiber bundles 4; the loose tube 2 is arranged in the outer sheath 3 in a penetrating mode, the dry-type water blocking material 33 is filled in the outer sheath 3, and/or a second water blocking tape 34 is arranged between the outer sheath 3 and the dry-type water blocking material 33, so that the optical fiber ribbon is processed in a full dry mode.
The specialty fibers 11 are arranged in an orderly pattern and bonded adjacent to each other at two specialty fibers 11 to form fiber optic ribbon 1. The adhesive area 12 is used to determine the coating position of the resin, and the adhesive area 12 is disposed at the contact position of two adjacent special optical fibers 11 to adhere the special optical fibers 11 to form the optical fiber ribbon 1. Along the radial direction of the special optical fiber 11, a plurality of rows of bonding areas 12 can be arranged at intervals, so that the bonding areas 12 on the two sides of the same special optical fiber 11 are alternately arranged to ensure the bonding reliability. After the optical fiber ribbon 1 is formed by coating resin, because the distance between different bonding areas 12 for bonding two same special optical fibers 11 is set to be 3-6 times of the length of the bonding area 12 in the length direction of the special optical fibers 11, the optical fiber ribbon 1 can have better separation performance after bonding, and two adjacent special optical fibers 11 can be separated from each other at the position without the bonding area 12, so that the optical fiber ribbon 1 is in a net shape; the optical fiber ribbon 1 can be curled to form an optical fiber bundle 4, and the optical fiber bundle 4 formed by the optical fiber ribbon 1 is provided with the bonding areas 12 at intervals and is subjected to adhesive dispensing and bonding, so that the optical fiber bundle 4 has good curling performance, is easier to bend and better in flexibility, is more convenient to arrange in the loose tube 2, is beneficial to reducing the problems of large occupied space and overlarge outer diameter of the loose tube 2 caused by the fact that the optical fiber bundle 4 is not easy to bend, can further reduce the outer diameter of the optical cable, and is convenient to optimize the arrangement mode; optical fiber ribbon 1 also can expand and use in order to cooperate with other optical fiber ribbon 1 to realize the optical fiber ribbon 1 that expands and the cooperation of curled optical fiber ribbon 1, curled optical fiber ribbon 1 and traditional optical fiber ribbon, can increase the optical fiber core number in the optical cable when improving the suitability, satisfy the application demand.
The loose tube 2 of the full-dry type ribbon optical cable is filled with the first water-blocking tape 21, the outer sheath 3 is filled with the dry type water-blocking material 33, and ointment materials are not used, so that the environmental pollution can be reduced. Meanwhile, a second water-blocking tape 34 is arranged in the outer sheath 3 for coating, so that the waterproof effect of the optical cable is better realized. Preferably, the dry water-blocking material 33 may be water-blocking yarn or water-blocking powder; the materials and structures of the first water blocking tape 21, the second water blocking tape 34 and the dry water blocking material 33 can be selected according to actual use requirements. The full-dry type ribbon optical cable improves the bending performance of the optical fiber bundle 4 on the basis of not using factice, so that different optical fiber ribbons 1 can be mutually matched, and the number of optical fiber cores in the optical cable is increased.
Alternatively, after ribbon 1 is crimped to form bundle 4, bundle 4 can be expanded in a web-like manner to render the crimping of ribbon 1 reversible.
Compared with the original optical fiber ribbon structure, the optical fiber ribbon 1 adopts the mode that the bonding areas 12 are arranged at intervals, after the optical fiber ribbon 1 is curled to form the optical fiber bundle 4, the optical fiber bundle 4 can be unfolded to recover to a net-shaped structure with good flexibility when needed, and the optical fiber ribbon structure also has a good curling effect and is convenient to be matched with other optical fiber ribbons for use.
With continued reference to fig. 2-7, the specialty optical fiber 11 may alternatively comprise an optical fiber having an outer diameter of 160-200 μm, an optical fiber having an outer diameter of 245 μm, or a multimode optical fiber.
Optionally, the resin has a bond strength of greater than or equal to 6.5N/cm 2 So that the adhesive force on the optical fiber ribbon 1 is larger than that on the optical fiber ribbonOr 5gf, so that the optical fiber ribbon 1 can be bonded compactly when bonded, and the bonding reliability of the optical fiber ribbon 1 when not subjected to an external force can be ensured. The Young modulus of the resin adopted by the full-dry type optical fiber ribbon cable is less than 100Mpa, the elongation at break is more than 120%, and the full-dry type optical fiber ribbon cable has good flexibility. Preferably, the viscosity of the resin can be determined according to actual conditions, and the use requirement can be met.
Alternatively, the length of the bonding zone 12 is 5 to 15mm.
As shown in fig. 6, when a plurality of loose tubes 2 are inserted into the outer sheath 3, a central reinforcement 31 may be disposed in the outer sheath 3, and an auxiliary reinforcement 32 may be disposed in the outer sheath 3, so that the optical cable can meet the requirements of strength and the like. Preferably, the auxiliary reinforcement 32 may be glass yarn, aramid yarn or other polyester yarn; the outer sheath 3 may be made of Polyethylene (PE), low smoke zero halogen material (LSZH), flame Retardant Polyethylene (FRPE), or polyvinyl chloride (PVC).
As shown in fig. 7, an outer sheath reinforcing member 35 is optionally provided on the outer sheath 3 to enhance the tensile property.
When a single loose tube 2 is arranged in the outer sheath 3 in a penetrating manner to form a central beam tube type optical cable, two outer sheath reinforcing pieces 35 can be arranged in the outer sheath 3, and the two outer sheath reinforcing pieces 35 are symmetrically arranged in the outer sheath 3, so that the reliability is improved. Preferably, a polyester material or aramid ripcord may also be provided on the all-dry ribbon cable to facilitate tearing the cable into branches when branching is desired.
Another aspect of the present invention provides a method of manufacturing a fully dry optical fiber ribbon cable, as shown in fig. 2-10, for manufacturing the fully dry optical fiber ribbon cable, comprising:
s10, coating resin on the bonding area 12 to bond the special optical fiber 11 to form the optical fiber ribbon 1;
s20, curling the optical fiber ribbon 1 to form an optical fiber bundle 4;
s30, placing the optical fiber bundles 4 on the first water-blocking tape 21, and enabling the optical fiber bundles 4 and the first water-blocking tape 21 to penetrate through the forming mold 5 to enable the first water-blocking tape 21 to coat the optical fiber bundles 4;
s40, penetrating the plurality of optical fiber bundles 4 coated with the first water blocking tape 21 into the loose tube 2;
s50, cabling is carried out, the plurality of loose tubes 2 are stranded and then coated with the dry-type water-blocking material 33 to penetrate through the outer sheath 3, and a second water-blocking tape 34 is wrapped outside the loose tubes 2 and the dry-type water-blocking material 33.
It will be appreciated that the steps of crimping optical fiber ribbon 1 and cabling may be performed using tooling, the type of tooling selected being determined according to the actual requirements.
Optionally, S10, after the resin is applied to the bonding region 12, the processing method of the full-dry type optical fiber ribbon cable further includes:
and S11, processing and molding the optical fiber ribbon 1 through a continuous curing process.
The continuous curing enables the resin between the special optical fibers 11 to solidify, optimizing the bonding effect.
Optionally, S50, before cabling, the processing method of the full-dry type optical fiber ribbon cable further includes:
s41, enabling the loose tube 2 to enter a vacuum negative pressure water tank, wherein the vacuum negative pressure water tank can change the outer diameter of the loose tube 2 by adjusting the pressure.
After the loose tube 2 is output from the machine head, the loose tube 2 is in a soft state due to high temperature, and the temperature needs to be reduced to shape the loose tube 2. The vacuum negative pressure water tank can cool the loose tube 2, and simultaneously, the external diameter of the loose tube 2 is accurate by adjusting the pressure, and the surface quality of the loose tube 2 is improved, so that the external part of the loose tube is smooth and round.
With continued reference to fig. 2-10, optionally, the forming angle of the forming mold 5 is 30 ° to 80 °, so that the first water-blocking tape 21 can better coat the optical fiber bundle 4, and the processing quality of the fully dry optical fiber ribbon cable is improved.
Optionally, the molding die 5 is provided with a stopper 51 to be able to restrict the first water blocking tape 21 from shifting.
The forming mold 5 is used for naturally curling the first water-blocking tape 21 to form a cylindrical structure capable of coating the periphery of the optical fiber bundle 4. During processing, the optical fiber ribbon 1 is inserted into the guide portion 52, the forming mold 5 is provided with a stopper portion 51 along the length direction, and the stopper portion 51 is arranged in the circumferential direction of the guide portion 52, so that the first water blocking tape 21 is coated on the periphery of the optical fiber ribbon 1. When the first water-blocking tape 21 passes through the forming die 5, the stopping portion 51 enables the two sides of the first water-blocking tape 21 to be curled, and the first water-blocking tape 21 can be prevented from shifting when being curled to affect the quality of the optical cable. Preferably, the stopping portions 51 are plate-shaped structures with a certain curvature and symmetrically arranged on the forming die 5. It can be understood that the processing method of the full dry type optical fiber ribbon cable further includes a plurality of steps such as the previous coloring of the optical fiber and the detection in the manufacturing process of the optical fiber ribbon cable, which are already the prior art and therefore will not be described herein in detail.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A fully dry optical ribbon cable, comprising:
the optical fiber ribbon (1) comprises a plurality of special optical fibers (11), a plurality of bonding areas (12) are arranged on the surfaces of two adjacent special optical fibers (11) at intervals, the bonding areas (12) are used for coating resin so that the adjacent special optical fibers (11) can be bonded with each other, and the distance between the adjacent bonding areas (12) for bonding the same two special optical fibers (11) is 3-6 times of the length of the bonding areas (12) along the length direction of the special optical fibers (11), so that the optical fiber ribbon (1) can be curled to form an optical fiber bundle (4) or expanded in a net shape to improve the curling performance of the optical fiber ribbon (1);
the optical fiber bundle water-blocking device comprises a loose tube (2), wherein a plurality of optical fiber bundles (4) are arranged in the loose tube (2), and a first water-blocking tape (21) is arranged between the inner wall of the loose tube (2) and the optical fiber bundles (4);
the loose tube (2) penetrates through the outer sheath (3), a dry water-blocking material (33) is filled in the outer sheath (3), and/or a second water-blocking tape (34) is arranged between the outer sheath (3) and the dry water-blocking material (33) so that the optical fiber ribbon is processed in a full dry mode.
2. Fully dry ribbon cable according to claim 1, characterized in that after the optical fiber ribbon (1) is crimped to form a bundle (4), the bundle (4) can be expanded in a web shape to render the crimping of the optical fiber ribbon (1) reversible.
3. An all-dry optical ribbon cable according to claim 1, wherein the length of the adhesive region (12) is 5 to 15mm.
4. The all-dry ribbon cable according to claim 1, wherein the specialty optical fiber (11) comprises an optical fiber having an outer diameter of 160 μm to 200 μm, an optical fiber having an outer diameter of 245 μm, or a multimode optical fiber.
5. The all-dry optical ribbon cable of claim 1, wherein the resin has an adhesive strength of 6.5N/cm or more 2 So that the adhesion force on the optical fiber ribbon (1) is greater than or equal to 5gf.
6. The all-dry optical ribbon cable according to claim 1, wherein an outer sheath reinforcing member (35) is provided on the outer sheath (3) to enhance tensile strength.
7. A method of processing an all-dry optical fiber ribbon cable according to any of claims 1-6, comprising:
applying the resin to the adhesive area (12) to adhere the specialty optical fiber (11) to form the optical fiber ribbon (1);
crimping the optical fiber ribbon (1) to form the optical fiber bundle (4);
placing a plurality of optical fiber bundles (4) on the first water-blocking tape (21), and enabling the optical fiber bundles (4) and the first water-blocking tape (21) to penetrate through a forming die (5) so that the first water-blocking tape (21) covers the optical fiber bundles (4);
penetrating a plurality of optical fiber bundles (4) coated with the first water-blocking tape (21) into the loose tube (2);
and cabling is carried out, the dry water-blocking materials (33) are wrapped by the plurality of loose tubes (2) after being twisted, the loose tubes are arranged in the outer sheath (3) in a penetrating mode, and the second water-blocking tapes (34) are wrapped outside the loose tubes (2) and the dry water-blocking materials (33).
8. The processing method of an all-dry type optical fiber ribbon cable according to claim 7, wherein the molding angle of the molding die (5) is 30 ° to 80 ° so that the first water blocking tape (21) covers the optical fiber bundle (4).
9. The method of processing an all-dry optical ribbon cable according to claim 7, further comprising, after the resin is applied to the adhesive region (12):
and processing and shaping the optical fiber ribbon (1) through a continuous curing process.
10. The method of processing an all-dry ribbon cable of claim 7, further comprising, prior to cabling:
and enabling the loose tube (2) to enter a vacuum negative pressure water tank, wherein the vacuum negative pressure water tank can change the outer diameter of the loose tube (2) by adjusting the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211258537.9A CN115542488A (en) | 2022-10-14 | 2022-10-14 | Full-dry type optical fiber ribbon cable and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211258537.9A CN115542488A (en) | 2022-10-14 | 2022-10-14 | Full-dry type optical fiber ribbon cable and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115542488A true CN115542488A (en) | 2022-12-30 |
Family
ID=84733797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211258537.9A Pending CN115542488A (en) | 2022-10-14 | 2022-10-14 | Full-dry type optical fiber ribbon cable and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115542488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024174573A1 (en) * | 2023-02-21 | 2024-08-29 | 长飞光纤光缆股份有限公司 | Ribbon optical fiber unit, optical cable, and method for preparing ribbon optical fiber unit |
-
2022
- 2022-10-14 CN CN202211258537.9A patent/CN115542488A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024174573A1 (en) * | 2023-02-21 | 2024-08-29 | 长飞光纤光缆股份有限公司 | Ribbon optical fiber unit, optical cable, and method for preparing ribbon optical fiber unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11409064B2 (en) | Optical communication cable | |
| EP3605174B1 (en) | Optical fiber cable | |
| US10520691B2 (en) | Round and small diameter optical cables with a ribbon-like optical fiber structure | |
| KR20080027328A (en) | Fiber optic cables and methods for forming the same | |
| CN111175887A (en) | Optical fiber ribbon, optical cable, and method for manufacturing optical fiber ribbon | |
| TW201535004A (en) | Optical cable | |
| US9927590B2 (en) | Composite film for a fiber optic cable | |
| CN206038975U (en) | Tube cable is restrainted to absolutely dry formula | |
| JP7273960B2 (en) | Fiber optic cable with rollable ribbon and central strength member | |
| WO2024051073A1 (en) | Flexible optical fiber ribbon and ribbon optical fiber cable | |
| CN115524784B (en) | Self-assembled ultra-dense stacked optical fiber ribbon, preparation method thereof, optical unit and optical fiber ribbon cable | |
| CN115542488A (en) | Full-dry type optical fiber ribbon cable and processing method thereof | |
| CN116299922A (en) | Optical fiber cable | |
| US10859780B2 (en) | Optical fiber unit, optical fiber cable, and method for manufacturing optical fiber unit | |
| WO2001084206A2 (en) | Fiber optic cable | |
| CN115877526B (en) | Large-core-number ribbon cable and preparation method thereof | |
| WO2023127828A1 (en) | Optical fiber ribbon and slot-less optical cable | |
| CN211375148U (en) | Intensive central tube structure and optical cable | |
| US20230236374A1 (en) | Optical fiber cable with flexible wrapping tubes | |
| EP4187299A1 (en) | Optical fibre ribbon with optimized number of bonds | |
| CN112987214A (en) | Low manufacturing cost optical cable | |
| CN108717220B (en) | Full-dry optical cable and forming method thereof | |
| JP3710040B2 (en) | Fiber optic cable | |
| JP2018132541A (en) | Optical fiber cable | |
| JP2004078032A (en) | Optical fiber cable and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |