CN117331182A - Fiber penetrating structure, fiber penetrating die and cable - Google Patents

Abstract

The invention provides a fiber penetrating structure, a fiber penetrating die and a cable, wherein the fiber penetrating structure comprises: a first sleeve including a plurality of first connection sections provided along a circumferential direction thereof, the plurality of first connection sections being detachably connected; the second sleeve is arranged in the first sleeve in a penetrating way and comprises a plurality of second connecting sections arranged along the circumferential direction of the second sleeve, and the second connecting sections are detachably connected; a plurality of first groove segments, at least one first groove segment is arranged on the inner surface of each first connecting segment, and each first groove segment extends along the axis of the first sleeve; the outer surface of each second connecting section is provided with at least one second groove section, each second groove section extends along the axis of the first sleeve, the second groove sections are arranged in one-to-one correspondence with the first groove sections, and the first groove sections and the second groove sections which are correspondingly arranged form first perforations. The technical scheme of the application effectively solves the problem that the fiber penetrating efficiency of the reinforcing piece in the related technology is low.

Description

Fiber penetrating structure, fiber penetrating die and cable

Technical Field

The invention relates to the technical field of cable manufacturing, in particular to a fiber penetrating structure, a fiber penetrating die and a cable.

Background

In recent years, with the continuous upgrading of products, more customers hope to obtain optical cable structural products with smaller size and higher density on the requirements of optical cable products, and the products still have excellent tensile and compression resistance, so in order to further reduce the size of the products and improve the density of fiber cores of the optical cables, the reinforcing layer in the original optical cable is changed into a reinforcing piece to be embedded into a sheath, thus greatly compressing the structural size of the products and improving the density of the fiber cores of the reinforcing piece, and meanwhile, the reinforcing piece embedded into the sheath also effectively provides excellent tensile and compression resistance.

However, in the production process of the conventional reinforcement embedded sheath, if the number of the reinforcing pieces is large, the fiber penetrating process is extremely complicated, and the conventional auxiliary fiber penetrating rod cannot meet the fiber penetrating requirement, so that the production efficiency is greatly reduced.

Disclosure of Invention

The invention mainly aims to provide a fiber penetrating structure and a fiber penetrating die with the same, so as to solve the problem of lower fiber penetrating efficiency of a reinforcing piece in the related technology.

In order to achieve the above object, according to one aspect of the present invention, there is provided a fiber passing structure comprising: a first sleeve including a plurality of first connection sections provided along a circumferential direction thereof, the plurality of first connection sections being detachably connected; the second sleeve is arranged in the first sleeve in a penetrating way and comprises a plurality of second connecting sections arranged along the circumferential direction of the second sleeve, and the second connecting sections are detachably connected; a plurality of first groove segments, at least one first groove segment is arranged on the inner surface of each first connecting segment, and each first groove segment extends along the axis of the first sleeve; the outer surface of each second connecting section is provided with at least one second groove section, each second groove section extends along the axis of the first sleeve, the second groove sections are arranged in one-to-one correspondence with the first groove sections, and the first groove sections and the second groove sections which are correspondingly arranged form first perforations.

Further, the fiber penetrating structure further comprises a third sleeve, the third sleeve is arranged in the second sleeve in a penetrating mode, the third sleeve comprises a plurality of third connecting sections which are arranged along the circumference of the third sleeve, at least one third groove section is arranged on the inner surface of each second connecting section, at least one fourth groove section is arranged on the outer surface of each third connecting section, the plurality of third groove sections and the plurality of fourth groove sections are arranged in a one-to-one correspondence mode, and second perforation is formed by the corresponding third groove sections and the fourth groove sections.

Further, the first groove section is a first arc-shaped groove, and the second groove section is a second arc-shaped groove.

Further, the cross section of the first groove section is a first semicircle, and the cross section of the second groove section is a second semicircle.

Further, the fiber penetrating structure further comprises a first non-adhesive layer and a second non-adhesive layer, the first non-adhesive layer is arranged between the inner surface of the first sleeve and the outer surface of the second sleeve, and the second non-adhesive layer is arranged on the inner wall of the first perforation.

Further, the fiber penetrating structure further comprises a first positioning structure, the first positioning structure comprises a positioning protrusion and a positioning groove, the positioning protrusion and the positioning groove are in plug-in fit, one of the positioning protrusion and the positioning groove is arranged on one side of the first sleeve, which faces the second sleeve, and the other one of the positioning protrusion and the positioning groove is arranged on one side of the second sleeve, which faces the first sleeve.

Further, the fiber penetrating structure further comprises a plurality of plug structures, each plug structure extends along the axis of the first sleeve, and the ends of two adjacent first connecting sections are connected through one plug structure.

Further, the plug-in structure comprises a first slot and a first plug block, the first slot and the first plug block are respectively arranged on two adjacent first connecting sections, and the first slot and the first plug block are in plug-in fit along the axis direction of the first sleeve.

Further, the plug-in structure further comprises a second slot and a second plug-in block, the second plug-in block is in plug-in fit with the second slot, the second plug-in block and the first plug-in block are adjacently arranged on the same first connecting section and form a first hook-shaped structure, the second plug-in block and the first plug-in block are adjacently arranged on the same first connecting section and form a second hook-shaped structure, and the first hook-shaped structure and the second hook-shaped structure are in hook-in fit.

Further, the fiber penetrating structure further comprises a second positioning structure, and the second positioning structure is arranged on the outer wall of the first sleeve.

Further, the second positioning structure is arranged on the outer wall of the first sleeve and located at the joint of the two adjacent first connecting sections, and comprises a first positioning part and a second positioning part which are respectively arranged on the outer surfaces of the two adjacent first connecting sections.

Further, the end of the first sleeve is provided with a reduced diameter section.

According to another aspect of the present invention, there is provided a fiber penetrating mold, including a mold sleeve, a mold core penetrating into the mold sleeve, and a fiber penetrating structure penetrating into the mold core, wherein the fiber penetrating structure is the fiber penetrating structure.

According to another aspect of the present invention, there is provided a cable manufactured by the fiber-passing mold described above, the cable including a central portion including a light unit and a water blocking tape wrapped outside the light unit, a plurality of reinforcing members and a sheath wrapped outside the central portion, the plurality of reinforcing members being located inside the sheath; the second sleeve of the fiber penetrating structure in the fiber penetrating die is used for penetrating and positioning the central part, each first perforation of the fiber penetrating structure is used for penetrating and positioning one reinforcing piece, and the sheath is formed by injecting glue.

By applying the technical scheme of the invention, the first sleeve comprises a plurality of first connecting sections which are arranged along the circumferential direction of the first sleeve and are detachably connected. A second sleeve is arranged in the first sleeve in a penetrating mode, the second sleeve comprises a plurality of second connecting sections which are arranged along the circumferential direction, and the second connecting sections are detachably connected. A first groove section extending along the axis of the first sleeve is provided on the inner surface of each first connection section, the first groove section including at least one. The outer surface of each second connecting section is provided with a second groove section extending along the axis of the first sleeve, the second groove section comprises at least one, the second groove sections are arranged in one-to-one correspondence with the first groove sections, and the first groove sections and the second groove sections which are correspondingly arranged form first perforations. Through foretell setting, a plurality of first linkage segments make first sheathed tube dismouting comparatively simple, and a plurality of second linkage segments make the sheathed tube dismouting of second comparatively simple, the use of fiber structure is worn to the convenience. The first perforation that corresponds the first slot segment that sets up and second slot segment formed, first slot segment sets up on the internal surface of first linkage segment, first slot segment sets up on the surface of first linkage segment towards the second linkage segment promptly, the second slot segment sets up on the surface of second linkage segment towards first linkage segment promptly, first slot segment and second slot segment extend along first sheathed tube axis for the reinforcement can pass at first perforation between first sleeve pipe and the second sleeve pipe, and then has improved reinforcement and worn fine efficiency. Therefore, the technical scheme of the application effectively solves the problem that the fiber penetrating efficiency of the reinforcing piece in the related technology is low.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic front view of an embodiment of a fiber-passing structure according to the present invention without a third sleeve;

FIG. 2 shows a schematic front view of a first sleeve of the fiber-passing structure of FIG. 1;

FIG. 3 shows a schematic front view of the first sleeve of FIG. 2 with adjacent first connection segments separated;

FIG. 4 is a schematic front view of the fiber passing structure of FIG. 1 with a third sleeve;

FIG. 5 shows a schematic front view of a second sleeve of the fiber-passing structure of FIG. 4;

FIG. 6 shows a schematic front view of a third sleeve of the fiber-passing structure of FIG. 4;

FIG. 7 shows a schematic cross-sectional view of an embodiment of a fiber-threading die according to the present invention;

fig. 8 shows a schematic side view of an embodiment of a cable according to the invention;

fig. 9 shows a schematic side view of another layout of the reinforcement of the cable of fig. 8.

Wherein the above figures include the following reference numerals:

10. a first sleeve; 11. a first connection section; 12. a reducing section; 20. a second sleeve; 21. a second connection section; 211. a third trough section; 30. a first trough section; 31. a first arc-shaped groove; 32. a first semicircle; 40. a second trough section; 41. a second arc-shaped groove; 42. a second semicircle; 50. a first perforation; 60. a third sleeve; 61. a third connecting section; 611. a fourth trough section; 65. a second perforation; 70. a first non-stick layer; 80. a second non-stick layer; 90. a first positioning structure; 91. positioning the bulge; 92. a positioning groove; 100. a plug-in structure; 101. a first slot; 102. a first plug; 103. a second slot; 104. a second insert block; 110. a first hook-like structure; 120. a second hook-like structure; 130. a second positioning structure; 131. a first positioning portion; 132. a second positioning portion; 200. a die sleeve; 210. a mold core; 310. a center portion; 311. a light unit; 312. a water blocking tape; 320. a reinforcement; 330. and (3) a sheath.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1, according to an aspect of the present embodiment, there is provided a fiber passing structure, including: a first sleeve 10, a second sleeve 20, a plurality of first groove segments 30, a plurality of second groove segments 40. The first sleeve 10 includes a plurality of first connection sections 11 provided along a circumferential direction thereof, and the plurality of first connection sections 11 are detachably connected. The second sleeve 20 is penetrated inside the first sleeve 10, and the second sleeve 20 includes a plurality of second connection sections 21 disposed along a circumferential direction thereof, the plurality of second connection sections 21 being detachably connected. At least one first groove section 30 is provided on the inner surface of each first connection section 11, each first groove section 30 extending along the axis of the first sleeve 10. At least one second groove section 40 is disposed on the outer surface of each second connecting section 21, each second groove section 40 extends along the axis of the first sleeve 10, the plurality of second groove sections 40 are disposed in one-to-one correspondence with the plurality of first groove sections 30, and the first groove sections 30 and the second groove sections 40 disposed in correspondence form a first perforation 50.

With the technical solution of the present embodiment, the first sleeve 10 includes a plurality of first connection sections 11, the plurality of first connection sections 11 being disposed along the circumferential direction of the first sleeve 10, the plurality of first connection sections 11 being detachably connected. A second sleeve 20 is inserted into the first sleeve 10, and the second sleeve 20 includes a plurality of second connection sections 21 disposed in a circumferential direction, and the plurality of second connection sections 21 are detachably connected. A first groove section 30 extending along the axis of the first sleeve 10 is provided on the inner surface of each first connection section 11, the first groove section 30 comprising at least one. The outer surface of each second connecting section 21 is provided with a second groove section 40 extending along the axis of the first sleeve 10, the second groove section 40 comprises at least one, the second groove sections 40 are arranged in one-to-one correspondence with the first groove sections 30, and the first groove sections 30 and the second groove sections 40 which are correspondingly arranged form first perforations. Through the above arrangement, the first connecting sections 11 make the disassembly and assembly of the first sleeve 10 simpler, and the second connecting sections 21 make the disassembly and assembly of the second sleeve 20 simpler, so that the fiber penetrating structure is convenient to use. The first perforation 50 formed by the correspondingly arranged first groove section 30 and second groove section 40, the first groove section 30 is arranged on the inner surface of the first connecting section 11, namely the first groove section 30 is arranged on the surface of the first connecting section 11 facing the second connecting section 21, the second groove section 40 is arranged on the outer surface of the second connecting section 21, namely the second groove section 40 is arranged on the surface of the second connecting section 21 facing the first connecting section 11, and the first groove section 30 and the second groove section 40 extend along the axis of the first sleeve 10, so that the reinforcement can pass through the first perforation 50 between the first sleeve 10 and the second sleeve 20, and the fiber penetrating efficiency of the reinforcement is improved. Therefore, the technical scheme of the embodiment effectively solves the problem of lower fiber penetrating efficiency of the reinforcing piece in the related technology.

Specifically, the reinforcing piece can be metal or nonmetal, the reinforcing piece can be one layer or multiple layers, the reinforcing piece can be one or multiple, the distance between the reinforcing piece and the inner and outer ends of the first sleeve and the second sleeve and the thickness between the reinforcing piece and the reinforcing piece are not less than 0.3mm, and the conditions of mutual interference and exposure are avoided.

As shown in fig. 4 and 6, in the present embodiment, the fiber-passing structure further includes a third sleeve 60, the third sleeve 60 is disposed in the second sleeve 20 in a penetrating manner, the third sleeve 60 includes a plurality of third connection sections 61 disposed along a circumferential direction thereof, at least one third groove section 211 is disposed on an inner surface of each second connection section 21, at least one fourth groove section 611 is disposed on an outer surface of each third connection section 61, the plurality of third groove sections 211 and the plurality of fourth groove sections 611 are disposed in one-to-one correspondence, and the third groove sections 211 and the fourth groove sections 611 disposed in correspondence form the second perforation 65. The plurality of third connecting sections 61 arranged along the circumferential direction makes the disassembly and assembly of the third sleeve 60 easier. The fourth groove section 611 provided on the outer surface of the third connecting section 61 and the third groove section 211 provided on the inner surface of the second connecting section 21 form a second perforation 65, i.e. the fourth groove section 611 is provided on the surface of the third connecting section 61 facing the second connecting section 21 and the third groove section 211 is provided on the surface of the second connecting section 21 facing the third connecting section 61, such an arrangement facilitating the penetration of the reinforcement between the second sleeve 20 and the third sleeve 60, i.e. making the penetration of the reinforcement simpler.

Specifically, the connecting line of the centers of the first and second perforations passes through the centers of the first and second sleeves. Of course, in the embodiment not shown in the drawings, the connecting line of the centers of the first perforation and the second perforation may not pass through the centers of the first sleeve and the second sleeve, but the angle between the connecting line of the centers of the first perforation and the first sleeve and the connecting line of the centers of the second perforation and the first sleeve should be smaller than 5 °, which is advantageous for enhancing the strength of the optical fiber produced using the fiber-passing structure.

It should be noted that, at least two first through holes are located between two adjacent first connection sections and two adjacent second connection sections, at least two second through holes are located between two adjacent second connection sections and two adjacent third connection sections, that is, at least two partial structures of the first through holes are located on the first sleeve and the second sleeve, and at least two partial structures of the second through holes are located on the second sleeve and the third sleeve.

Preferably, a fourth sleeve may be further disposed in the third sleeve 60 in a penetrating manner, where the fourth sleeve includes a plurality of fourth connection segments disposed along a circumferential direction thereof, at least one fifth groove segment is disposed on an inner surface of each third connection segment 61, at least one sixth groove segment is disposed on an outer surface of each fourth connection segment, and the plurality of fifth groove segments and the plurality of sixth groove segments are disposed in one-to-one correspondence, and the correspondingly disposed fifth groove segments and sixth groove segments form third perforations. The plurality of fourth connecting sections arranged along the circumferential direction enable the disassembly and assembly of the fourth sleeve to be simple and convenient. The sixth groove section provided on the outer surface of the fourth connecting section and the fifth groove section provided on the inner surface of the third connecting section 61 form a third perforation, i.e. the fifth groove section is provided on the surface of the third connecting section 61 facing the fourth connecting section, the sixth groove section is provided on the surface of the fourth connecting section facing the third connecting section 61, such an arrangement facilitating the penetration of the reinforcement between the third sleeve 60 and the fourth sleeve, i.e. making the penetration of the reinforcement simpler.

Specifically, the fiber penetrating structure can further comprise a fifth sleeve, a sixth sleeve or more sleeves, wherein the fifth sleeve is sleeved in the fourth sleeve, the sixth sleeve is sleeved in the fifth sleeve, positioning points are arranged between every two sleeves, and every positioning point is staggered. Such an arrangement enables more reinforcements to be worn at a time, and thus enables the production of optical fibers that meet different strength requirements.

As shown in fig. 1 to 4, in the present embodiment, the first groove section 30 is a first arc groove 31, and the second groove section 40 is a second arc groove 41. The arrangement described above is such that the first and second channel sections 30, 40 do not damage the reinforcement members that are threaded into the first and second channel sections 30, 40.

In particular, the cross-section of the first arcuate slot and the cross-section of the second arcuate slot may be minor arcs such that the reinforcement can also pass between the first slot segment and the second slot segment.

In the present embodiment, as shown in fig. 2 and 3, the first slot segment 30 has a first semicircular shape 32 in cross section, and the second slot segment 40 has a second semicircular shape 42 in cross section. The arrangement mentioned above makes the first perforation 50 formed by the first groove section 30 and the second groove section 40 match with the appearance of the reinforcement, so that the reinforcement can pass through the first perforation 50 conveniently, and the fiber penetrating efficiency of the reinforcement is higher.

It should be noted that, the first semicircle 32 and the second semicircle 42 have the same diameter and the centers of circles coincide, that is, the first perforation 50 is a circle.

In particular, in an embodiment not shown in the figures, the cross section of the first perforation may also be square, rectangular, pentagonal, hexagonal or other shape.

As shown in fig. 1 and 5, in the present embodiment, the fiber passing structure further includes a first non-adhesive layer 70 and a second non-adhesive layer 80, the first non-adhesive layer 70 is disposed between the inner surface of the first sleeve 10 and the outer surface of the second sleeve 20, and the second non-adhesive layer 80 is disposed on the inner wall of the first perforation 50. The above arrangement prevents the glue outside the reinforcement from adhering to the inner wall of the first through hole 50 and between the inner surface of the first sleeve 10 and the outer surface of the second sleeve 20 after melting under the action of high temperature, thus avoiding the interference of the movement of the reinforcement by the first sleeve 10 and the second sleeve 20 during the penetrating process of the reinforcement, and damaging the reinforcement.

Preferably, the first non-adhesive layer 70 and the second non-adhesive layer 80 are non-adhesive ceramic paint, which can resist high temperature, and solve the problem that the glue melting plugs the first perforation 50 in the fiber penetrating process of the glue-covered reinforcing member, so that the movement of the reinforcing member is not smooth, and the reinforcing member is broken.

As shown in fig. 1 to 5, in the present embodiment, the fiber passing structure further includes a first positioning structure 90, the first positioning structure 90 includes a positioning protrusion 91 and a positioning groove 92, the positioning protrusion 91 and the positioning groove 92 are in plug-fit, one of the positioning protrusion 91 and the positioning groove 92 is disposed at a side of the first ferrule 10 facing the second ferrule 20, and the other of the positioning protrusion 91 and the positioning groove 92 is disposed at a side of the second ferrule 20 facing the first ferrule 10. The above arrangement enables the first sleeve 10 and the second sleeve 20 to be accurately connected under the action of the positioning protrusion 91 and the positioning groove 92, and the relative positions of the first sleeve 10 and the second sleeve 20 after connection cannot be changed, i.e. the relative positions of the first perforation 50 and the second perforation 65 cannot be changed, so that the fiber penetration of the reinforcing member is facilitated.

As shown in fig. 2 and 3, in the present embodiment, the fiber-passing structure further includes a plurality of plug structures 100, each plug structure 100 extends along the axis of the first sleeve 10, and the ends of two adjacent first connection sections 11 are connected by one plug structure 100. The above arrangement makes the end portions of the adjacent first connecting sections 11 be connected by the plugging structure 100, and the adjacent first connecting sections 11 can only move along the axial direction of the first sleeve 10, so that the first connecting sections 11 are prevented from being separated in the radial direction of the first sleeve 10, and further, the reinforcing piece fiber penetration is prevented from being influenced.

As shown in fig. 3, in the present embodiment, the plugging structure 100 includes a first socket 101 and a first plug 102, the first socket 101 and the first plug 102 are respectively disposed on two adjacent first connection sections 11, and the first socket 101 and the first plug 102 are plugged and mated along the axial direction of the first sleeve 10. The first socket 101 and the first plug 102 facilitate connection of adjacent first connection segments 11. The first socket 101 and the first plug 102 are in plug-in engagement along the axial direction of the first sleeve 10, so that adjacent first connection sections 11 can only be moved relatively along the axial direction of the first sleeve 10, i.e. the first connection sections 11 can only be disassembled or assembled along the axial direction of the first sleeve 10.

As shown in fig. 3, in the present embodiment, the plugging structure 100 further includes a second slot 103 and a second plug block 104, the second plug block 104 is in plug-in fit with the second slot 103, the second slot 103 and the first plug block 102 are adjacently disposed and located on the same first connection section 11 and form a first hook structure 110, the second plug block 104 and the first plug block 101 are adjacently disposed and located on the same first connection section 11 and form a second hook structure 120, and the first hook structure 110 and the second hook structure 120 are in hook fit. The above arrangement makes the connection of the first connection sections 11 simpler and more convenient, and the relative position will not change after the adjacent first connection sections 11 are connected.

As shown in fig. 2 and 3, in the present embodiment, the fiber penetrating structure further includes a second positioning structure 130, and the second positioning structure 130 is disposed on the outer wall of the first sleeve 10. The positioning during the installation of the fiber penetrating structure is convenient, and the fiber penetrating structure is convenient to use.

As shown in fig. 2, in the present embodiment, the second positioning structure 130 is disposed on the outer wall of the first sleeve 10 at the junction between two adjacent first connection sections 11, the second positioning structure 130 includes a first positioning portion 131 and a second positioning portion 132, and the first positioning portion 131 and the second positioning portion 132 are disposed on the outer surfaces of two adjacent first connection sections 11, respectively. The above-mentioned setting for wear fine structure installation back, first location portion 131 and second location portion 132 can play the fixed action to adjacent first linkage segment 11, avoid first sleeve pipe 10 in the use first linkage segment 11 to take place the position change, and then avoid influencing the reinforcement and wear fine process.

In particular, the projections of the first positioning structure, the second positioning structure and the plug-in structure on a plane perpendicular to the axis of the first sleeve do not coincide.

As shown in fig. 7, in the present embodiment, the end of the first sleeve 10 is provided with a reduced diameter section 12. The arrangement of the diameter-reducing section 12 makes the installation process of the fiber-penetrating structure smoother.

As shown in fig. 7, according to a second aspect of the present embodiment, a fiber penetrating mold is provided, where the fiber penetrating mold includes a mold sleeve 200, a mold core 210 penetrating into the mold sleeve 200, and a fiber penetrating structure penetrating into the mold core 210, and the fiber penetrating structure is the fiber penetrating structure described above. The fiber penetrating structure enables the reinforcement to penetrate out of the first perforation 50, thereby improving the fiber penetrating efficiency of the reinforcement. The fiber penetrating mold with the fiber penetrating structure also has the advantages.

Specifically, when more sleeves are arranged, the disassembly mode is the same as that of the step 4, firstly, the innermost sleeve is disassembled, and then, the outer sleeve is sequentially disassembled from inside to outside.

As shown in fig. 8 and 9, according to a third aspect of the present embodiment, there is provided a cable manufactured by the above-mentioned fiber-threading die, the cable including a central portion 310, a plurality of reinforcing members 320 and a sheath 330, the central portion 310 including a light unit 311 and a water blocking tape 312 wrapped outside the light unit 311, the sheath 330 being wrapped outside the central portion 310, the plurality of reinforcing members 320 being located inside the sheath 330, wherein a second sleeve 20 of a fiber-threading structure in the fiber-threading die is used to thread and position the central portion 310, each first perforation 50 of the fiber-threading structure is used to thread and position one reinforcing member 320, and the sheath 330 is formed by injecting glue. The cable is processed through the fiber penetrating die, so that the position of the reinforcing piece 320 is more stable and reasonable, and the structural strength of the cable is better.

Specifically, in this embodiment, the fiber threading die is used as follows:

1. before production, the mold core 210 and the mold sleeve 200 are installed in the extrusion molding machine head, and meanwhile, the fiber penetrating structure is assembled completely according to the first positioning structure and the second positioning structure between the first sleeve and the second sleeve;

2. the fiber penetrating structure is inserted into the mold core 210, and the fiber penetrating structure is positioned between the mold core 210 and the mold core 210 through a positioning groove at the inner side of the mold core 210;

3. penetrating the reinforcement from the first perforation 50 and the second perforation 65 of the fiber penetrating structure, and penetrating out from the corresponding holes on the mold core 210;

4. after all the reinforcing parts are penetrated out, the third sleeve 60 is firstly extracted from the middle of the second sleeve 20, the extracted third sleeve 60 is divided into a plurality of third connecting sections 61, the third sleeve 60 can be extracted from the gap of the reinforcing parts, the second sleeve 20 is extracted from the middle of the first sleeve 10, the extracted second sleeve 20 is divided into a plurality of second connecting sections 21, the third sleeve 60 can be extracted from the gap of the reinforcing parts, and finally the first sleeve 10 is separated;

5. extruding the material, adjusting the pressure of a fiber penetrating die to ensure the outer diameter and the wall thickness of the product, and ensuring the concentricity of the product;

6. penetrating into the water blocking tape 312 and the optical unit 311, and winding up the wire on the upper winding drum.

The optical cable produced using the fiber-passing mold includes, from outside to inside, a sheath 330, a reinforcing member 320, a water blocking tape 312, and an optical unit 311. The reinforcing members 320 are uniformly distributed on the sheath 330. The optical units 311 may be loose tubes, micro-beam tubes, or optical fiber ribbons, which are all high-density optical units. The water blocking tape 312 can be water blocking yarn, and a layer of aerogel felt is attached to the surface of the water blocking tape 312, so that heat of the sheath can be isolated while water blocking is performed, and the damage of an internal light unit due to high temperature is avoided. The sheath 330 is mainly made of HDPE (high density polyethylene), LSZH (low smoke zero halogen), TPU (thermoplastic polyurethane) or the like. By virtue of the configuration of the reinforcement 320 embedded in the jacket 330, the reinforcement layer and the center reinforcement are eliminated and the compression on the outside diameter can be achieved to 70% to 80% of the original outside diameter dimension (depending on the number of cores). The inner cavity density of the embedded structure is larger than 4 cores/mm according to different core numbers ² Whereas the density of the inner cavity of the conventional optical cable is basically thatAre all lower than 2 cores/mm ² 。

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A fiber passing structure, comprising:

-a first sleeve (10), said first sleeve (10) comprising a plurality of first connection segments (11) arranged along its circumference, a plurality of said first connection segments (11) being removably connected;

a second sleeve (20) penetrating the first sleeve (10), wherein the second sleeve (20) comprises a plurality of second connecting sections (21) arranged along the circumferential direction of the second sleeve, and the second connecting sections (21) are detachably connected;

-a plurality of first groove segments (30), each first connecting segment (11) being provided on an inner surface thereof with at least one first groove segment (30), each first groove segment (30) extending along an axis of the first sleeve (10);

the outer surface of each second connecting section (21) is provided with at least one second groove section (40), each second groove section (40) extends along the axis of the first sleeve (10), the second groove sections (40) are arranged in one-to-one correspondence with the first groove sections (30), and the first groove sections (30) and the second groove sections (40) which are arranged in one-to-one correspondence form first perforations (50).

2. The fiber penetrating structure according to claim 1, further comprising a third sleeve (60), wherein the third sleeve (60) is arranged in the second sleeve (20) in a penetrating manner, the third sleeve (60) comprises a plurality of third connecting sections (61) arranged along the circumferential direction of the third sleeve, at least one third groove section (211) is arranged on the inner surface of each second connecting section (21), at least one fourth groove section (611) is arranged on the outer surface of each third connecting section (61), the plurality of third groove sections (211) and the plurality of fourth groove sections (611) are arranged in a one-to-one correspondence manner, and the third groove sections (211) and the fourth groove sections (611) which are arranged in a corresponding manner form second perforations (65).

3. The fiber-passing structure according to claim 1, characterized in that the first groove section (30) is a first arc-shaped groove (31) and the second groove section (40) is a second arc-shaped groove (41).

4. The fiber-passing structure of claim 1, wherein the first channel section (30) has a first semicircular shape (32) in cross section and the second channel section (40) has a second semicircular shape (42) in cross section.

5. The fiber-passing structure according to claim 1, further comprising a first non-stick layer (70) and a second non-stick layer (80), the first non-stick layer (70) being arranged between the inner surface of the first sleeve (10) and the outer surface of the second sleeve (20), the second non-stick layer (80) being arranged on the inner wall of the first perforation (50).

6. The fiber-passing structure according to claim 1, further comprising a first positioning structure (90), the first positioning structure (90) comprising a positioning protrusion (91) and a positioning groove (92), the positioning protrusion (91) and the positioning groove (92) being in a plug-in fit, one of the positioning protrusion (91) and the positioning groove (92) being provided on a side of the first sleeve (10) facing the second sleeve (20), the other of the positioning protrusion (91) and the positioning groove (92) being provided on a side of the second sleeve (20) facing the first sleeve (10).

7. The fiber-passing structure according to any one of claims 1 to 6, characterized in that it further comprises a plurality of plug-in structures (100), each plug-in structure (100) extending along the axis of the first sleeve (10), the ends of two adjacent first connection segments (11) being connected by one plug-in structure (100).

8. The fiber penetration structure according to claim 7, wherein the plug-in structure (100) comprises a first slot (101) and a first plug-in block (102), the first slot (101) and the first plug-in block (102) are respectively arranged on two adjacent first connecting sections (11), and the first slot (101) and the first plug-in block (102) are in plug-in fit along the axial direction of the first sleeve (10).

9. The fiber penetration structure according to claim 8, wherein the plug-in structure (100) further comprises a second slot (103) and a second plug-in block (104), the second plug-in block (104) and the second slot (103) are in plug-in fit, the second slot (103) and the first plug-in block (102) are adjacently arranged and located on the same first connecting section (11) and form a first hook-shaped structure (110), the second plug-in block (104) and the first plug-in block (101) are adjacently arranged and located on the same first connecting section (11) and form a second hook-shaped structure (120), and the first hook-shaped structure (110) and the second hook-shaped structure (120) are in hook-in fit.

10. The fiber-passing structure according to any one of claims 1 to 6, characterized in that it further comprises a second positioning structure (130), said second positioning structure (130) being provided on the outer wall of the first sleeve (10).

11. The fiber penetration structure according to claim 10, wherein the second positioning structure (130) is disposed on the outer wall of the first sleeve (10) at the junction between two adjacent first connection sections (11), the second positioning structure (130) includes a first positioning portion (131) and a second positioning portion (132), and the first positioning portion (131) and the second positioning portion (132) are disposed on the outer surfaces of two adjacent first connection sections (11), respectively.

12. The fiber-passing structure according to any one of claims 1 to 6, characterized in that the end of the first sleeve (10) is provided with a reduced diameter section (12).

13. A fiber penetrating die, characterized in that the fiber penetrating die comprises a die sleeve (200), a die core (210) penetrating into the die sleeve (200) and a fiber penetrating structure penetrating into the die core (210), wherein the fiber penetrating structure is the fiber penetrating structure of any one of claims 1 to 12.

14. A cable, characterized in that the cable is manufactured by the fiber-passing mold according to claim 13, the cable comprises a central part (310), a plurality of reinforcing members (320) and a sheath (330), the central part (310) comprises a light unit (311) and a water blocking tape (312) wrapped outside the light unit (311), the sheath (330) is wrapped outside the central part (310), and the plurality of reinforcing members (320) are positioned in the sheath (330);

wherein a second sleeve (20) of a fiber penetrating structure in the fiber penetrating mold is used for penetrating and positioning the central part (310), each first perforation (50) of the fiber penetrating structure is used for penetrating and positioning one reinforcing piece (320), and the sheath (330) is formed by injecting glue.