Self-supporting anti-pecking optical cable and manufacturing method thereof

Abstract

The present invention belongs to the field of cables, and in particular, relates to a self-supporting anti-pecking optical cable, which has a central reinforcement, a plurality of loose tubes, a water-blocking layer, a peripheral reinforcement, an inner sheath extruded and coated outside the peripheral reinforcement, and an outer sheath outside the inner sheath, wherein the loose tube has a plurality of optical fibers inside; the characteristic is that a plurality of anti-pecking components covering the outer layer of the inner sheath are provided between the inner sheath and the outer sheath, the anti-pecking components are composed of an anti-pecking matrix and an anti-pecking strip protruding from the surface of the anti-pecking matrix, and a positioning component is provided between adjacent anti-pecking components, and the outer edge of the anti-pecking strip protrudes from the outer edge of the positioning component along the direction from the center of the central reinforcement to the outer sheath, and the outer edge of the anti-pecking strip is embedded in the inner edge of the outer sheath but does not pass through the outer edge of the outer sheath; and the plurality of anti-pecking components are placed parallel to each other outside the inner sheath. The present invention also discloses a method for manufacturing an optical cable. The present invention has a number of beneficial technical effects such as simple structure, easy manufacturing, low cost, and better anti-pecking effect.

Description

Technical Field

[0001] The invention belongs to the field of cables, and in particular relates to a self-supporting anti-pecking optical cable and a manufacturing method thereof. Background Art

[0002] In the prior art, a patent entitled: A bird-pecking-proof optical cable and a manufacturing method thereof, with a publication number: CN104614829A, adopts an anti-pecking layer composed of the following raw materials: medium-density polyethylene or low-density polyethylene or high-density polyethylene, epoxy resin, ultrafine steel fiber and glass fiber and silica optical fiber, EVA hot melt adhesive, antioxidant, aluminum hydroxide, paraffin, carbon black masterbatch; to prevent bird pecking.

[0003] The patent named: Anti-bird pecking optical cable, publication number: CN107450142A adopts an anti-pecking layer composed of the following raw materials: medium-density polyethylene or low-density polyethylene or high-density polyethylene: 50-80 parts; epoxy resin with brand 617 or brand 677: 10-20 parts; ultra-fine steel fiber or glass fiber with a diameter of 10-80μm and a length / diameter ratio of 5-20 or a silica optical fiber with a diameter of 6.5-260μm and a length of 0.03-1mm: 40-60 parts; EVA hot melt adhesive: 5-10 parts; antioxidant for cable sheath with model 1010: 3-5 parts; aluminum hydroxide: 15-25 parts; paraffin: 3-9 parts; carbon black masterbatch: 5-10 parts; to prevent bird pecking.

[0004] The above solutions all use new chemical formulas to achieve bird pecking prevention. The new materials are not recyclable, the materials are not environmentally friendly, and pollution is caused during the manufacturing process. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to disclose a self-supporting anti-pecking optical cable, and further disclose a manufacturing method of the optical cable, which are achieved by adopting the following technical solutions.

[0006] A self-supporting anti-pecking optical cable comprises a central reinforcement member located in the center, a plurality of loose tubes twisted around the central reinforcement member, a water-blocking layer coated outside the plurality of loose tubes, a peripheral reinforcement member located outside the water-blocking layer, an inner sheath extruded and coated outside the peripheral reinforcement member, and an outer sheath located outside the inner sheath, wherein a plurality of optical fibers are arranged inside the loose tube; the cable is characterized in that a plurality of anti-pecking components are arranged between the inner sheath and the outer sheath to cover the outer layer of the inner sheath, the anti-pecking components are composed of an anti-pecking matrix and anti-pecking strips protruding from the surface of the anti-pecking matrix, a positioning component is arranged between adjacent anti-pecking components, and the outer edge of the anti-pecking strip protrudes from the outer edge of the positioning component along the direction from the center of the central reinforcement member to the outer sheath, and the outer edge of the anti-pecking strip is embedded in the inner edge of the outer sheath but does not pass through the outer edge of the outer sheath; and the plurality of anti-pecking components are arranged parallel to each other outside the inner sheath.

[0007] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is a glass fiber reinforced plastic rod or a nylon rod.

[0008] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is an integrated structure.

[0009] A method for manufacturing the self-supporting anti-pecking optical cable described above comprises the following steps performed in sequence:

[0010] The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products;

[0011] The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core;

[0012] The steps of manufacturing the inner sheath are as follows: extruding and covering the inner sheath on the cable core to form the inner sheath;

[0013] The steps of manufacturing the finished optical cable are as follows: taking a plurality of anti-pecking components and a plurality of positioning components and passing them through a mold, wherein the anti-pecking components are located outside the inner sheath; making the positioning components located between adjacent anti-pecking components, wherein the anti-pecking components are composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the outer edge of the anti-pecking strip protrudes from the outer edge of the positioning component along the center of the central reinforcement member toward the outer edge of the central reinforcement member; taking an extruded plastic of the outer sheath material and covering the anti-pecking components to form a finished optical cable, wherein a portion of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath; and placing a plurality of anti-pecking components parallel to each other outside the inner sheath.

[0014] A self-supporting anti-pecking optical cable comprises a central reinforcement member, a plurality of loose tubes twisted around the central reinforcement member, a water-blocking layer coated outside the plurality of loose tubes, a peripheral reinforcement member located outside the water-blocking layer, an inner sheath extruded and coated outside the peripheral reinforcement member, and an outer sheath located outside the inner sheath, wherein the loose tube has a plurality of optical fibers inside; the cable is characterized in that an anti-pecking component is provided between the inner sheath and the outer sheath, which covers the outer layer of the inner sheath, and the anti-pecking component is composed of a plurality of non-metallic reinforcement rods of equal diameter, and the plurality of non-metallic reinforcement rods are placed parallel to each other or at an inclined angle to the inner sheath.

[0015] The self-supporting anti-pecking optical cable described above is characterized in that the non-metallic reinforcement rod is a glass fiber reinforced plastic rod or a nylon rod.

[0016] The self-supporting anti-pecking optical cable described above is characterized in that the inclination angle is from degrees to degrees.

[0017] A self-supporting anti-pecking optical cable comprises a central reinforcement member located in the center, a plurality of loose tubes twisted around the central reinforcement member, a water-blocking layer coated outside the plurality of loose tubes, a peripheral reinforcement member located outside the water-blocking layer, an inner sheath extruded and coated outside the peripheral reinforcement member, and an outer sheath located outside the inner sheath, wherein the loose tube has a plurality of optical fibers inside; the cable is characterized in that an anti-pecking component is provided between the inner sheath and the outer sheath to cover the outer layer of the inner sheath, the anti-pecking component is composed of an anti-pecking matrix and anti-pecking strips protruding from the surface of the anti-pecking matrix, a part of the anti-pecking strips is embedded in the inner edge of the outer sheath but does not pass through the outer edge of the outer sheath; the anti-pecking strips are distributed in rows on the surface of the anti-pecking matrix, and adjacent anti-pecking strips do not contact each other.

[0018] A method for manufacturing the self-supporting anti-pecking optical cable described above comprises the following steps performed in sequence:

[0019] The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products;

[0020] The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core;

[0021] The steps of manufacturing the inner sheath are as follows: the inner sheath is extruded and coated on the outside of the cable core to form the inner sheath;

[0022] The steps of manufacturing the finished optical cable are as follows: taking an anti-pecking component and winding it longitudinally to cover the outer surface of the inner sheath, the anti-pecking component is composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the surface of the anti-pecking base without the anti-pecking strip is covered on the outer surface of the inner sheath; taking an extruded plastic of the outer sheath material and covering the outer surface of the anti-pecking component to form a finished optical cable, wherein a part of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath.

[0023] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking base and the anti-pecking strip are made of glass fiber.

[0024] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is an integrated structure.

[0025] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking strips are distributed in rows on the surface of the anti-pecking base, and the positions of the anti-pecking strips in adjacent rows are staggered.

[0026] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking strips are distributed in rows on the surface of the anti-pecking base, and the anti-pecking strips in adjacent rows are parallel and in a straight line.

[0027] The self-supporting anti-pecking optical cable described above is characterized in that the material of the central reinforcement member is glass fiber plus plastic.

[0028] The self-supporting anti-pecking optical cable described above is characterized in that the material of the loose tube is polybutylene terephthalate.

[0029] The self-supporting anti-pecking optical cable described above is characterized in that the material of the water-blocking layer is a water-blocking tape or a non-woven fabric, which is longitudinally or spirally coated.

[0030] The self-supporting anti-pecking optical cable described above is characterized in that the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0031] The self-supporting anti-pecking optical cable described above is characterized in that the material of the outer sheath is polyethylene or polypropylene.

[0032] The self-supporting anti-pecking optical cable described above is characterized in that the gap inside the loose tube is filled with water-blocking grease, water-blocking yarn or water-blocking powder.

[0033] The present invention has many beneficial technical effects such as simple structure, easy manufacture, low cost, better anti-pecking effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure after decomposition of implementation example 1 of the present invention.

[0035] Figure 2 It is a schematic diagram of the cross-sectional structure of implementation example 2 of the present invention.

[0036] Figure 3 Schematic diagram of the longitudinal cross-sectional structure of the anti-pecking component used in Embodiment 2 of the present invention.

[0037] Figure 4 This is a schematic diagram of the three-dimensional structure after decomposition of implementation example 3 of the present invention.

[0038] Figure 5 Schematic diagram of the cross-sectional structure of the anti-pecking component used in Embodiment 3 of the present invention.

[0039] In the figure: 1 - outer sheath, 2 - anti-pecking component, 21 - anti-pecking matrix, 22 - anti-pecking strip, 3 - inner sheath, 4 - central reinforcement, 5 - loose tube, 6 - optical fiber, 7 - water blocking layer, 8 - surrounding reinforcement, 9 - positioning component. DETAILED DESCRIPTION

[0040] Implementation Example 1

[0041] Please see Figure 1 A self-supporting anti-pecking optical cable comprises a central reinforcement member 4, a plurality of loose tubes 5 twisted around the central reinforcement member 4, a water-blocking layer 7 coated outside the plurality of loose tubes 5, a peripheral reinforcement member 8 located outside the water-blocking layer 7, an inner sheath 3 extruded and coated outside the peripheral reinforcement member 8, and an outer sheath 1 located outside the inner sheath 3, wherein the loose tube 5 has a plurality of optical fibers 6 inside; the cable is characterized in that an anti-pecking component 2 is provided between the inner sheath 3 and the outer sheath 1, and the anti-pecking component 2 is composed of a plurality of non-metallic reinforcement rods of equal diameter, and the plurality of non-metallic reinforcement rods are placed parallel to each other or at an inclined angle to the inner sheath 3.

[0042] The self-supporting anti-pecking optical cable described above is characterized in that the non-metallic reinforcement rod is a glass fiber reinforced plastic rod or a nylon rod.

[0043] The self-supporting anti-pecking optical cable described above is characterized in that the inclination angle is 5 degrees to 45 degrees.

[0044] Implementation Example 2

[0045] Please see Figure 2 and Figure 3 , and refer to Figure 1 A self-supporting anti-pecking optical cable comprises a central reinforcement member 4, a plurality of loose tubes 5 twisted around the central reinforcement member 4, a water-blocking layer 7 coated outside the plurality of loose tubes 5, a peripheral reinforcement member 8 outside the water-blocking layer 7, an inner sheath 3 extruded and coated outside the peripheral reinforcement member 8, and an outer sheath 1 outside the inner sheath 3, wherein the loose tube 5 has a plurality of optical fibers 6 inside; it is characterized in that a plurality of anti-pecking components 2 covering the outer layer of the inner sheath 3 are provided between the inner sheath 3 and the outer sheath 1, the anti-pecking components 2 are composed of an anti-pecking matrix 21 and an anti-pecking strip 22 protruding from the surface of the anti-pecking matrix 21, a positioning component 9 is provided between adjacent anti-pecking components 2, and the outer edge of the anti-pecking strip 22 protrudes from the outer edge of the positioning component 9 along the direction from the center of the central reinforcement member 4 to the outer sheath 1, and the outer edge of the anti-pecking strip 22 is embedded in the inner edge of the outer sheath 1 but does not pass through the outer edge of the outer sheath 1; and the plurality of anti-pecking components 2 are placed parallel to each other outside the inner sheath 3.

[0046] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is a glass fiber reinforced plastic rod or a nylon rod.

[0047] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is an integrated structure.

[0048] The positioning component ensures the stability of the position of the anti-pecking component and the position of the anti-pecking strip.

[0049] A method for manufacturing the self-supporting anti-pecking optical cable described above comprises the following steps performed in sequence:

[0050] The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products;

[0051] The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core;

[0052] The steps of manufacturing the inner sheath are as follows: extruding and covering the inner sheath on the cable core to form the inner sheath;

[0053] The steps of manufacturing the finished optical cable are as follows: taking a plurality of anti-pecking components and a plurality of positioning components and passing them through a mold, wherein the anti-pecking components are located outside the inner sheath; making the positioning components located between adjacent anti-pecking components, wherein the anti-pecking components are composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the outer edge of the anti-pecking strip protrudes from the outer edge of the positioning component along the center of the central reinforcement member toward the outer edge of the central reinforcement member; taking an extruded plastic of the outer sheath material and covering the anti-pecking components to form a finished optical cable, wherein a portion of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath; and placing a plurality of anti-pecking components parallel to each other outside the inner sheath.

[0054] Implementation Example 3

[0055] Please see Figure 4 and Figure 5 , and refer to Figure 1A self-supporting anti-pecking optical cable comprises a central reinforcement member 4, a plurality of loose tubes 5 twisted around the central reinforcement member 4, a water-blocking layer 7 coated outside the plurality of loose tubes 5, a peripheral reinforcement member 8 outside the water-blocking layer 7, an inner sheath 3 extruded and coated outside the peripheral reinforcement member 8, and an outer sheath 1 outside the inner sheath 3, wherein the loose tube 5 has a plurality of optical fibers 6 inside; the cable is characterized in that an anti-pecking component 2 is provided between the inner sheath 3 and the outer sheath 1, the anti-pecking component 2 is composed of an anti-pecking matrix 21 and an anti-pecking strip 22 protruding from the surface of the anti-pecking matrix 21, a part of the anti-pecking strip 22 is embedded in the inner edge of the outer sheath 1 but does not pass through the outer edge of the outer sheath 1; the anti-pecking strips 22 are distributed in rows on the surface of the anti-pecking matrix 21, and adjacent anti-pecking strips 22 do not contact each other.

[0056] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking base and the anti-pecking strip are made of glass fiber.

[0057] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking component is an integrated structure.

[0058] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking strips are distributed in rows on the surface of the anti-pecking base, and the positions of the anti-pecking strips in adjacent rows are staggered.

[0059] The self-supporting anti-pecking optical cable described above is characterized in that the anti-pecking strips are distributed in rows on the surface of the anti-pecking base, and the anti-pecking strips in adjacent rows are parallel and in a straight line.

[0060] A method for manufacturing the self-supporting anti-pecking optical cable described above comprises the following steps performed in sequence:

[0061] The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products;

[0062] The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core;

[0063] The steps of manufacturing the inner sheath are as follows: the inner sheath is extruded and coated on the outside of the cable core to form the inner sheath;

[0064] The steps of manufacturing the finished optical cable are as follows: taking an anti-pecking component and winding it longitudinally to cover the outer surface of the inner sheath, the anti-pecking component is composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the surface of the anti-pecking base without the anti-pecking strip is covered on the outer surface of the inner sheath; taking an extruded plastic of the outer sheath material and covering the outer surface of the anti-pecking component to form a finished optical cable, wherein a part of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath.

[0065] In the present invention, the anti-pecking component may be coated with a coating tape, and then the outer sheath may be extruded and coated on the outer surface of the coating tape. In this case, the anti-pecking strip is not embedded in the outer sheath.

[0066] A self-supporting anti-pecking optical cable as described in any of the above-mentioned embodiments is characterized in that the material of the central reinforcement member is glass fiber plus plastic.

[0067] A self-supporting anti-pecking optical cable as described in any of the above-mentioned implementation examples is characterized in that the material of the loose tube is polybutylene terephthalate.

[0068] A self-supporting anti-pecking optical cable as described in any of the above-mentioned embodiments is characterized in that the material of the water-blocking layer is a water-blocking tape or a non-woven fabric, which is longitudinally or spirally coated.

[0069] A self-supporting anti-pecking optical cable as described in any of the above-mentioned embodiments is characterized in that the material of the surrounding reinforcement member is aramid yarn, which is spirally coated with a pitch of 20mm-3000mm.

[0070] A self-supporting anti-pecking optical cable as described in any of the above-mentioned embodiments is characterized in that the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0071] A self-supporting anti-pecking optical cable as described in any of the above-mentioned implementation examples is characterized in that the material of the outer sheath is polyethylene or polypropylene.

[0072] A self-supporting anti-pecking optical cable as described in any of the above-mentioned implementation examples is characterized in that the gap inside the loose tube is filled with water-blocking paste or water-blocking yarn or water-blocking powder.

[0073] In the first embodiment of the present invention, anti-pecking is achieved by a layer of anti-pecking component.

[0074] In the embodiments 2 and 3 of the present invention, anti-pecking is achieved by a layer of anti-pecking components, and the anti-pecking effect of the anti-pecking strip is better.

[0075] In the second embodiment of the invention, the anti-pecking strips are distributed in a straight line outside the outer surface of a single anti-pecking base.

[0076] The present invention has many beneficial technical effects such as simple structure, easy manufacture, low cost, better anti-pecking effect, etc.

[0077] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A self-supporting anti-pecking optical cable, comprising a central reinforcement member (4), a plurality of loose tubes (5) twisted around the central reinforcement member (4), a water blocking layer (7) coated outside the plurality of loose tubes (5), a peripheral reinforcement member (8) located outside the water blocking layer (7), an inner sheath (3) extruded and coated outside the peripheral reinforcement member (8), and an outer sheath (1) located outside the inner sheath (3), wherein the loose tube (5) has a plurality of optical fibers (6); characterized in that A plurality of anti-pecking components (2) are provided between the inner sheath (3) and the outer sheath (1) to cover the outer layer of the inner sheath (3); the anti-pecking components (2) are composed of an anti-pecking base (21) and an anti-pecking strip (22) protruding from the surface of the anti-pecking base (21); a positioning component (9) is provided between adjacent anti-pecking components (2); along the direction from the center of the central reinforcement (4) to the outer sheath (1), the outer edge of the anti-pecking strip (22) protrudes from the outer edge of the positioning component (9); the outer edge of the anti-pecking strip (22) is embedded in the inner edge of the outer sheath (1) but does not pass through the outer edge of the outer sheath (1); the plurality of anti-pecking components (2) are placed parallel to each other outside the inner sheath (3); the anti-pecking components are glass fiber reinforced plastic rods or nylon rods; the anti-pecking components are an integrated structure.

2. A method for manufacturing a self-supporting anti-pecking optical cable according to claim 1, characterized in that : It includes the following steps in sequence: The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products; The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core; The steps of manufacturing the inner sheath are as follows: extruding and covering the inner sheath on the cable core to form the inner sheath; The steps of manufacturing the finished optical cable are as follows: taking a plurality of anti-pecking components and a plurality of positioning components and passing them through a mold, wherein the anti-pecking components are located outside the inner sheath; making the positioning components located between adjacent anti-pecking components, wherein the anti-pecking components are composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the outer edge of the anti-pecking strip protrudes from the outer edge of the positioning component along the center of the central reinforcement member toward the outer edge of the central reinforcement member; taking an extruded plastic of the outer sheath material and covering the anti-pecking components to form a finished optical cable, wherein a portion of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath; and placing a plurality of anti-pecking components parallel to each other outside the inner sheath.

3. A self-supporting anti-pecking optical cable, comprising a central reinforcement member (4), a plurality of loose tubes (5) twisted around the central reinforcement member (4), a water blocking layer (7) coated outside the plurality of loose tubes (5), a peripheral reinforcement member (8) located outside the water blocking layer (7), an inner sheath (3) extruded and coated outside the peripheral reinforcement member (8), and an outer sheath (1) located outside the inner sheath (3), wherein the loose tube (5) has a plurality of optical fibers (6); characterized in that An anti-pecking component (2) is provided between the inner sheath (3) and the outer sheath (1) and covers the outer layer of the inner sheath (3). The anti-pecking component (2) is composed of an anti-pecking base (21) and an anti-pecking strip (22) protruding from the surface of the anti-pecking base (21). A portion of the anti-pecking strip (22) is embedded in the inner edge of the outer sheath (1) but does not pass through the outer edge of the outer sheath (1). The anti-pecking strips (22) are arranged in rows on the surface of the anti-pecking base (21), and adjacent anti-pecking strips (22) do not contact each other. The anti-pecking base and the anti-pecking strips are made of glass fiber. The anti-pecking component is an integrated structure. The anti-pecking strips are arranged in rows on the surface of the anti-pecking base, and the positions of adjacent rows of anti-pecking strips are staggered.

4. A method for manufacturing a self-supporting anti-pecking optical cable according to claim 3, characterized in that: It includes the following steps in sequence: The steps of manufacturing the loose tube are as follows: polybutylene terephthalate is placed in a loose tube secondary coating machine and extruded through an extruder head to form a loose tube with a hole inside, multiple optical fibers are placed in the hole in the middle of the loose tube in a mutually parallel or mutually twisted manner, and the loose tube is continuously pulled and cooled to form a finished loose tube product; this process is repeated several times to form multiple finished loose tube products; The steps of manufacturing the cable core are as follows: taking the central reinforcement member and passing it through the central hole of the SZ stranding cabling machine, passing a plurality of finished loose tubes through the peripheral holes outside the central hole; longitudinally wrapping the water blocking layer outside the plurality of finished loose tubes, and wrapping the peripheral reinforcement member outside the water blocking layer in a unidirectional spiral manner to form a cable core; The steps of manufacturing the inner sheath: the inner sheath is extruded and coated outside the cable core to form an inner sheath; The steps of manufacturing the finished optical cable are as follows: taking an anti-pecking component and winding it longitudinally to cover the outer surface of the inner sheath, the anti-pecking component is composed of an anti-pecking base and an anti-pecking strip protruding from the surface of the anti-pecking base, and the surface of the anti-pecking base without the anti-pecking strip is covered on the outer surface of the inner sheath; taking an extruded plastic of the outer sheath material and covering the outer surface of the anti-pecking component to form a finished optical cable, wherein a part of the anti-pecking strip is embedded in the outer sheath and does not pass through the outer edge of the outer sheath.

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