CN209746209U - Novel easily-branched 8-shaped optical cable and forming die thereof - Google Patents
Novel easily-branched 8-shaped optical cable and forming die thereof Download PDFInfo
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- CN209746209U CN209746209U CN201920394735.5U CN201920394735U CN209746209U CN 209746209 U CN209746209 U CN 209746209U CN 201920394735 U CN201920394735 U CN 201920394735U CN 209746209 U CN209746209 U CN 209746209U
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Abstract
The utility model discloses a novel easily branch "8" style of calligraphy optical cable, forming die relates to the optical fiber technology field, and the production technology of current "8" style of calligraphy optical cable is complicated, and optical cable in use must cut whole root optical cable when needing to branch. The utility model discloses an optical cable comprises a sheath I, a sheath II and an optical cable hanging neck, wherein the sheath I comprises a plurality of bundle tubes, a tearing rope, an upper layer aluminum strip and a lower layer aluminum strip, and the sheath II comprises a bearing steel wire; the mould of the utility model can eliminate two processes of extruding the filling rope and stranding the layer strand in the manufacturing process of the optical cable, and simultaneously, the aluminum strip is directly preformed by the mould; when the optical cable is used, any beam tube can be constructed, and the normal use of other beam tubes is not influenced.
Description
Technical Field
The utility model relates to an optical fiber technology field especially relates to a novel easily branch "8" style of calligraphy optical cable and forming die thereof.
Background
The aluminum belt type layer stranded optical cable used conventionally at present mainly comprises optical fibers, fiber paste, plastic beam tubes, filling ropes, water blocking cable paste, a central reinforcement, a double-faced film-coated aluminum belt and polyethylene sheath materials. The bundle tubes, the filling ropes, the central reinforcers and the like are stranded by layer stranding equipment to form cable cores, and the cable cores are longitudinally wrapped with aluminum strips and then are subjected to extrusion molding to form sheaths. The process needs to go through the working procedures of filling rope extrusion molding, bundle pipe extrusion molding, layer stranding and stranding, aluminum strip longitudinal wrapping, sheath extrusion molding and the like. The cable in use needs to be cut off the whole cable when branching is needed. At present, an optical cable which can quickly construct a partial beam tube in the using process of the optical cable does not exist in the market, and a production mold which can reduce production processes and can coat an aluminum strip does not exist.
SUMMERY OF THE UTILITY MODEL
in order to solve the above-mentioned drawbacks, an object of the present invention is to provide an optical cable with a shape like "8" which can be constructed on a part of bundle tubes without affecting the normal use of the other bundle tubes by opening a skylight at any length. And can remove processes such as filling rope extrusion, layer hank transposition, aluminium strip indulge package from, can directly extrude the production mould of sheath after the beam tube production is accomplished.
The utility model discloses a following technical scheme realizes: the utility model provides a novel easily branch "8" style of calligraphy optical cable, hangs the neck including sheath I, sheath II and connects the optical cable between the two, sheath I, sheath II and optical cable hang the neck even as an organic whole and the three forms the oversheath that the cross section is "8" style of calligraphy, the external diameter of sheath I is less than the external diameter of sheath II, be provided with the bearing steel wire in the sheath I, be equipped with many beam tubes in the sheath II, the beam tube includes many optic fibre and fills the fine cream between beam tube and optic fibre, the beam tube distributes side by side into banded, just the beam tube both sides respectively are equipped with one and tear the rope, the outer cladding of beam tube, tear rope has upper aluminium strip and lower floor's aluminium strip, the beam tube with tear the clearance intussuseption between rope, upper aluminium strip, the lower floor's aluminium strip and be filled with the cable cream.
Furthermore, the optical fiber is a colored optical fiber, the outer diameter of the optical fiber is 250-260 μm, and the thickness of the colored layer is 3-5 μm.
Further, the bundle pipe is a PBT bundle pipe.
Further, the width of the upper layer aluminum strip and the lower layer aluminum strip is larger than the width of the side-by-side combination of the plurality of bundle tubes.
The utility model also provides a novel easily-branched 8-shaped optical cable forming die, which comprises a die core and a die sleeve matched with the die core, wherein the die core and the die sleeve are closely matched and installed through a positioning hole of the die core, a positioning groove of the die sleeve and a positioning pin, and an interval adjusting washer is arranged on the positioning pin; the mold core is provided with a central through hole, the upper side of the central through hole is provided with a through upper-layer aluminum strip wire passing port, the lower side of the central through hole is provided with a through lower-layer aluminum strip wire passing port, and the upper side of the upper-layer aluminum strip wire passing port is provided with a through bearing steel wire passing port; the die sleeve is provided with an 8-shaped through hole.
the utility model has the advantages that: two processes of extruding the filling rope and stranding the layer are omitted, and materials and various production costs are saved; an aluminum strip longitudinal wrapping table is omitted, the aluminum strip is preformed by a mold core, and wrapping is completed by extrusion pressure of an extrusion type mold jacket; when the optical cable is used, any beam tube can be constructed, and the normal use of other beam tubes is not influenced.
drawings
Fig. 1 is a schematic structural view of the novel easy-to-branch 8-shaped optical cable of the present invention.
Fig. 2 is a process flow chart of the optical fiber coloring of the present invention.
Fig. 3 is a process flow chart of the preparation of the bundle tube of the present invention.
Fig. 4 is a schematic structural diagram of the mold of the present invention.
Fig. 5 is a schematic structural diagram of the mold core and the mold sleeve after being disassembled.
Fig. 6 is a right side view of the mold core and the mold sleeve of the present invention.
Fig. 7 is a schematic structural view of the mold core according to the present invention after enlarging the mold nozzle portion.
The reference numbers in the figures illustrate:
1. The cable comprises sheaths I and 2, bearing steel wires 3, optical cable hanging necks 4, sheaths II and 5, upper-layer aluminum tapes 6, bundle tubes 7, fiber paste 8, optical fibers 9, tearing ropes 10, lower-layer aluminum tapes 11 and water-blocking cable paste;
A. The die comprises a die core, A1, a positioning groove, A2, a central through hole, A3, an upper layer aluminum strip wire passing port, A4, a lower layer aluminum strip wire passing port, A5 and a bearing steel wire passing port;
B. The die sleeve comprises a die sleeve body, a B1 positioning hole, a B2 and an 8-shaped through hole;
C. positioning pins;
D. A spacing adjustment washer.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a novel easily-branched 8-shaped optical cable comprises a sheath i 1, a sheath ii 4 and an optical cable hanging neck 3 connected between the sheath i 1 and the sheath ii 4, wherein the sheath i 1, the sheath ii 4 and the optical cable hanging neck 3 are connected into a whole, the sheath i 1, the sheath ii 4 and the optical cable hanging neck 3 form an outer sheath with a cross section in an 8 shape, the outer diameter of the sheath i 1 is smaller than the outer diameter of the sheath ii 4, a bearing steel wire 2 is arranged in the sheath i 1, a plurality of bundle tubes 6 are arranged in the sheath ii 4, each bundle tube 6 comprises a plurality of optical fibers 8 and fiber paste 7 filled between the bundle tubes 6 and the optical fibers 8, the bundle tubes 6 are distributed in a ribbon shape in parallel, two sides of each bundle tube 6 are respectively provided with a tearing rope 9, the bundle tube 6 and the tearing rope 9 are coated with an upper layer aluminum ribbon 5 and a lower layer aluminum ribbon 10, and gaps between.
the optical fiber 8 is a colored optical fiber, the outer diameter of the optical fiber 8 is 250 μm and 260 μm, and the thickness of the colored layer is 3-5 μm. The bundle tube 6 is a PBT bundle tube. The width of the upper layer aluminum strip 5 and the lower layer aluminum strip 10 is larger than the width of the side-by-side combination of the plurality of bundle tubes 6.
As shown in fig. 4-7, the forming mold for the novel easily-branched 8-shaped optical cable of the present invention comprises a mold core a and a mold sleeve B matched with the mold core a, wherein the mold core a and the mold sleeve B are closely matched and mounted through a positioning hole B1 of the mold sleeve B, a positioning groove a1 of the mold core a and a positioning pin C, and a spacing adjusting washer D is arranged on the positioning pin C; the mold core A is provided with a central through hole A2, the upper side of the central through hole A2 is provided with a through upper-layer aluminum strip wire passing port A3, the lower side of the central through hole A2 is provided with a through lower-layer aluminum strip wire passing port A4, and the upper side of the upper-layer aluminum strip wire passing port A3 is provided with a through bearing steel wire passing port A5; the die sleeve B is provided with an 8-shaped through hole B2.
The utility model discloses a novel easily branch ' 8 ' style of calligraphy optical cable's production technology, including following step:
(1) And (3) coloring the optical fiber: as shown in fig. 2, the optical fiber 8 is coated with ink of different colors by an optical fiber coloring machine, and is cured by ultraviolet light, so that the color does not migrate and fade, the production speed of the optical fiber coloring machine is 1200m/min, and the thickness of the colored layer of the optical fiber 8 is 3-5 μm;
(2) Preparing a bundle tube: as shown in fig. 3, paying off a plurality of colored optical fibers 8 by using an optical fiber pay-off rack, driving and protecting the optical fibers 8 by using a fiber paste 7 to extrude the optical fibers into a bundle tube 6 formed by PBT plastic extruded by an extruding machine, and sequentially cooling by hot water and cold water to crystallize the PBT and form a certain residual length of the optical fibers to obtain the bundle tube 6, wherein the production speed of the extruding machine is 300m/min, and the extruding temperature is 240-255 ℃;
(3) Aluminum strip coating and outer sheath extrusion: filling water-blocking cable paste 11 into a bundle tube 6 through a water-blocking cable paste filling device, enabling the bundle tube to pass through a central through hole A2 of a mold core A side by side, simultaneously placing a tearing rope 9 on each of the left side and the right side of a bundle tube 6 combination and enabling the tearing rope to pass through the central through hole A2, placing an upper layer aluminum strip 5 and a lower layer aluminum strip 10 which are slightly wider than the bundle tube 6 combination on each of the upper side and the lower side of the bundle tube 6 combination, similarly enabling the upper layer aluminum strip 5 and the lower layer aluminum strip 10 to respectively pass through an upper layer aluminum strip wire passing port A3 and a lower layer aluminum strip wire passing port A4 of the mold core A, and performing the; the bearing steel wire 2 passes through the bearing steel wire passing port A5 of the mold core A. Meanwhile, the extruder extrudes sheath materials into an 8-shaped through hole B2 of the die sleeve B, the sheath materials are extruded simultaneously along with the bearing steel wire 2, the upper layer aluminum strip 5, the lower layer aluminum strip 10, the beam tube 6 and the tearing rope 9, a sheath I1 is formed outside the bearing steel wire 2 in a covering mode, a sheath II 4 is formed outside the upper layer aluminum strip 5, the lower layer aluminum strip 10, the beam tube 6 and the tearing rope 9 in a covering mode, an optical cable hanging neck 3 is formed between the sheath I1 and the sheath II 4, and finally the optical cable is pulled out of the die integrally in parallel and is formed at one time. Wherein the production speed of the extruder is 40m/min, and the extrusion temperature is 170-290 ℃. The edges of the upper layer aluminum strip 5 and the lower layer aluminum strip 10 are changed into circular arcs by the extrusion pressure of the sheathing material when passing between the mold core A and the mold sleeve B, and are overlapped with each other to form lap joints which are close to the beam tubes 6, so that the beam tubes 6 are coated.
The utility model discloses an "8" style of calligraphy optical cable can adopt the blade to reject near the oversheath of aluminium strip overlap joint department when using to strip one section along the overlap joint and tear the rope, through tearing the rope with optical cable symmetry disintegration, with the separation of optical cable lower part, can cut the branch to target beam tube this moment. The problem of branching of the optical cable in use is effectively solved, and normal use of the optical fibers in the rest of bundle tubes is not influenced by construction. The utility model discloses an aluminium strip is accomplished the preforming to the aluminium strip by the mold core in the mold core, removes the aluminium strip from and indulges a packet platform. After the beam tubes are produced, the aluminum strips are directly wrapped on the plurality of beam tubes and the sheaths are extruded, so that the processes of extruding filling ropes and twisting the beam tube layers are omitted, and the production cost and the consumption of raw materials are reduced.
Claims (5)
1. The utility model provides a novel easily branch "8" style of calligraphy optical cable, includes sheath I, sheath II and connects the optical cable between the two and hangs the neck, its characterized in that: sheath I, sheath II and optical cable hanging neck are even as an organic whole and the three forms the oversheath that the cross section is "8" style of calligraphy, the external diameter of sheath I is less than the external diameter of sheath II, be provided with the bearing steel wire in the sheath I, be equipped with many beam tubes in the sheath II, the beam tube includes many optic fibre and fills the fine cream between beam tube and optic fibre, the beam tube distributes side by side into the banding, just the beam tube both sides respectively are equipped with one and tear the rope, beam tube, tear the outer cladding of rope have upper aluminium strip and lower floor's aluminium strip, the beam tube with tear the clearance intussuseption between rope, upper aluminium strip, the lower floor's aluminium strip and be filled with the cable cream that blocks water.
2. The novel easily-branched 8-shaped optical cable according to claim 1, characterized in that: the optical fiber is a colored optical fiber, the outer diameter of the optical fiber is 250 μm and 260 μm, and the thickness of the colored layer is 3-5 μm.
3. the novel easily-branched 8-shaped optical cable according to claim 1, characterized in that: the bundle tube is a PBT bundle tube.
4. The novel easily-branched 8-shaped optical cable according to claim 1, characterized in that: the width of the upper layer aluminum strip and the lower layer aluminum strip is larger than the width of the parallel combination of the plurality of beam tubes.
5. The utility model provides a novel forming die of easily branching "8" style of calligraphy optical cable, including the mold core and with mold core complex die sleeve, its characterized in that: the mold core and the mold sleeve are tightly matched and installed through a positioning hole of the mold core, a positioning groove of the mold sleeve and a positioning pin, and an interval adjusting washer is arranged on the positioning pin; the mold core is provided with a central through hole, the upper side of the central through hole is provided with a through upper-layer aluminum strip wire passing port, the lower side of the central through hole is provided with a through lower-layer aluminum strip wire passing port, and the upper side of the upper-layer aluminum strip wire passing port is provided with a through bearing steel wire passing port; the die sleeve is provided with an 8-shaped through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920394735.5U CN209746209U (en) | 2019-03-27 | 2019-03-27 | Novel easily-branched 8-shaped optical cable and forming die thereof |
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| CN201920394735.5U CN209746209U (en) | 2019-03-27 | 2019-03-27 | Novel easily-branched 8-shaped optical cable and forming die thereof |
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| CN209746209U true CN209746209U (en) | 2019-12-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991708A (en) * | 2019-03-27 | 2019-07-09 | 江苏通光信息有限公司 | Novel easily branched 8 shaped optical cable of one kind, molding die and its production technology |
| CN114005615A (en) * | 2021-09-29 | 2022-02-01 | 通鼎互联信息股份有限公司 | 6A data cable indulges package mould for shielding |
-
2019
- 2019-03-27 CN CN201920394735.5U patent/CN209746209U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991708A (en) * | 2019-03-27 | 2019-07-09 | 江苏通光信息有限公司 | Novel easily branched 8 shaped optical cable of one kind, molding die and its production technology |
| CN114005615A (en) * | 2021-09-29 | 2022-02-01 | 通鼎互联信息股份有限公司 | 6A data cable indulges package mould for shielding |
| CN114005615B (en) * | 2021-09-29 | 2023-11-28 | 通鼎互联信息股份有限公司 | Mould for 6A data cable longitudinal wrapping shielding |
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