High-strength specialty optical fiber manufacturing method, manufacturing system, and high-strength specialty optical fiber

Abstract

The application relates to the field of optical fibers, and provides a high-strength special optical fiber manufacturing method, a manufacturing system and the high-strength special optical fiber. The manufactured high-strength special optical fiber comprises an optical fiber main body and a plurality of protective sleeves sleeved on the optical fiber main body, the optical fiber main body comprises a fiber core, a cladding layer arranged on the surface of the fiber core and a coating layer covering the cladding layer, the protective sleeves are annular and can be sleeved on the optical fiber main body, the protective sleeves comprise a plurality of protective units which are integrally connected and uniformly distributed along the circumferential direction of the optical fiber main body, the protective unit comprises an elastic part and a supporting part which are integrally connected, the elastic part is arc-shaped, when the protective sleeve is sleeved on the optical fiber main body, the first end of the elastic part abuts against the optical fiber main body, and the second end of the elastic part is away from the optical fiber main body, and the supporting part is located between the second end of the elastic part and the optical fiber main body. The application can protect the position needing protection by the protective sleeve, and improves the impact resistance of the optical fiber.

Description

Technical Field

[0001] This invention relates to the field of special optical fibers, specifically to a method, system, and high-strength special optical fiber manufacturing process. Background Technology

[0002] Optical fiber, short for optical waveguide fiber, is a type of fiber made of glass or plastic that transmits light through total internal reflection, thereby enabling information transmission. In certain specialized applications, optical fibers require specific properties; these are collectively referred to as special-purpose optical fibers. For example, in some scenarios, optical fibers may experience frequent vibrations, collisions with other objects, or even compression. In such cases, the fiber needs sufficient strength to prevent damage and breakage that could disrupt information transmission.

[0003] In existing technologies, the main method to improve the strength of optical fibers is to coat the fiber surface with multiple layers of different reinforcing structures to enhance its impact resistance and thus reduce the probability of fiber damage. However, in reality, not every location on an optical fiber is likely to be impacted; during actual fiber optic installation, only certain specific locations require special protection. While existing methods of setting reinforcing structures can improve the strength of the fiber, they also significantly increase its overall weight and reduce its flexibility. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method, system, and high-strength special optical fiber manufacturing process, which can utilize protective sleeves to protect locations requiring protection, thereby enhancing the optical fiber's impact resistance.

[0005] To achieve the above objectives, the specific solution adopted by the present invention is: a high-strength special optical fiber manufacturing method, comprising the following steps:

[0006] Manufacturing an optical fiber body, the optical fiber body comprising a core, a cladding, and a coating layer;

[0007] Manufacture a protective sleeve, the protective sleeve being ring-shaped and capable of being fitted onto the optical fiber body, the protective sleeve comprising a plurality of integrally connected protective units evenly distributed along the circumference of the optical fiber body, the protective unit comprising an integrally connected elastic part and a support part, the elastic part being arc-shaped;

[0008] Multiple protective sleeves are fitted onto the optical fiber body. After the protective sleeves are fitted onto the optical fiber body, the first end of the elastic part abuts against the optical fiber body, and a distance is left between the second end of the elastic part and the optical fiber body. The support part is located between the second end of the elastic part and the optical fiber body.

[0009] Preferably, the method for manufacturing the protective case includes:

[0010] The metal strip is cut into multiple rectangular metal sheets;

[0011] The metal sheet is bent along its length and the two ends of the metal sheet are fixedly connected to form a ring-shaped metal strip;

[0012] The annular metal strip is extruded to form multiple protective units, thus obtaining the protective sleeve.

[0013] Preferably, before cutting the metal strip into multiple rectangular metal sheets, multiple through holes evenly distributed along the length direction of the metal strip are punched into the metal strip.

[0014] A manufacturing system for implementing the above-described high-strength special optical fiber manufacturing method, the manufacturing system comprising:

[0015] A stamping device is used to stamp a plurality of through holes evenly distributed along the length of the metal strip.

[0016] A cutting device for cutting the metal strip into multiple rectangular metal sheets;

[0017] The first forming device is used to bend the metal sheet along its length and fix the two ends of the metal sheet together to form a ring-shaped metal strip.

[0018] The second forming equipment is used to extrude the annular metal strip to form multiple protective units, thereby obtaining the protective sleeve.

[0019] Preferably, the stamping equipment includes a feeding conveyor for transporting the metal strip. The conveyor belt of the feeding conveyor includes two units with a gap between them. A stamping driver is disposed above the gap, and the stamping driver drives and connects to multiple downward stamping heads. A base is fixedly disposed below the gap, and multiple stamping channels corresponding to the stamping heads are opened on the base. All the stamping channels are connected to a chip removal channel, which extends through the bottom of the base.

[0020] Preferably, the second forming device includes a strip-shaped fixed mold, the annular metal strip can be sleeved on the fixed mold, a plurality of shaping protrusions are integrally connected to the peripheral sidewall of the fixed mold, a plurality of shaping pressure blocks are provided on the peripheral side of the fixed mold, and the shaping pressure blocks are connected to an extrusion driver for driving the shaping pressure blocks closer to or away from the fixed mold, the shaping pressure blocks and the shaping protrusions cooperate to extrude the annular metal strip to form the protective unit.

[0021] A high-strength special optical fiber is manufactured using the aforementioned high-strength special optical fiber manufacturing method. The high-strength special optical fiber includes an optical fiber body and multiple protective sleeves fitted onto the optical fiber body. The optical fiber body includes a fiber core, a cladding disposed on the surface of the fiber core, and a coating layer covering the cladding. The protective sleeves are annular and can be fitted onto the optical fiber body. The protective sleeves include multiple integrally connected and uniformly distributed protective units along the circumference of the optical fiber body. Each protective unit includes an integrally connected elastic part and a support part. The elastic part is arc-shaped. When the protective sleeve is fitted onto the optical fiber body, the first end of the elastic part abuts against the optical fiber body, and a distance is left between the second end of the elastic part and the optical fiber body. The support part is located between the second end of the elastic part and the optical fiber body.

[0022] Preferably, an outer sheath is fixedly fitted onto the coating layer, and a plurality of raised strips extending along the length direction of the optical fiber body are provided on the peripheral sidewall of the outer sheath. All the raised strips are evenly distributed along the circumference of the optical fiber body, and a groove is formed between two adjacent raised strips. When the protective sleeve is fitted onto the optical fiber body, the first end of the elastic part and the supporting part both abut against the bottom of the groove.

[0023] Preferably, in the direction from the first end to the second end, the distance between the elastic part and the optical fiber body gradually increases and then gradually decreases.

[0024] Preferably, the protective sleeve is fitted with a heat shrink tubing, and the heat shrink tubing can be fixed to the outer skin by a strapping device.

[0025] In the high-strength special optical fiber manufactured by the manufacturing method and equipment of this invention, multiple protective units of the protective sleeve can protect the optical fiber body from different directions. When an external object impacts the protective unit, the elastic part can absorb energy and deform, preventing the impact force from acting directly on the optical fiber body, thus protecting the optical fiber body. More specifically, because the first end of the elastic part abuts against the optical fiber body, while the second end is separated from the optical fiber body, and a support part is provided between the second end and the optical fiber body, when the elastic part is impacted, it will deform and push the support part to tilt towards another protective unit. This allows the support part to absorb some energy as well, preventing the elastic part from being subjected to excessive force and causing permanent deformation, ensuring continuous protection of the optical fiber body. Correspondingly, in two adjacent protective units, a distance is left between the support part of one protective unit and the elastic part of the other protective unit to form a deformation area, allowing the support part to tilt within the deformation area. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the high-strength special optical fiber of the present invention;

[0028] Figure 2 This is a schematic diagram of the outer skin structure;

[0029] Figure 3 This is a schematic diagram of how heat shrink tubing is fixed.

[0030] Figure 4 This is a structural schematic diagram of the stamping equipment;

[0031] Figure 5 This is a schematic diagram illustrating the setup of the guide plate;

[0032] Figure 6 This is a schematic diagram of the second molding equipment.

[0033] Reference numerals: 1-Fiber core, 2-Clad layer, 3-Coating layer, 4-Outer skin, 5-Raised strip, 6-Groove, 7-Protective sleeve, 8-Elastic part, 9-Support part, 10-Through hole, 11-Deformation area, 12-Heat shrink tubing, 13-Annular positioning groove, 14-Clad part, 15-Transition part, 16-Connecting part, 17-Bundling part, 18-Feeding conveyor, 19-Guide plate, 20-Punching driver, 21-Punching head, 22-Base, 23-Punching channel, 24-Chip removal channel, 25-Chip removal pipe, 26-Chip removal conveyor, 27-Single unit, 28-Gap, 29-Guide part, 30-Fixing die, 31-Shaping protrusion, 32-Shaping groove, 33-Shaping pressure block, 34-Extrusion driver, 35-Annular metal strip. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] The present invention first provides a method for manufacturing high-strength special optical fibers, including S1 to S3.

[0036] S1. Manufacturing the optical fiber body, which includes a fiber core 1, a cladding 2, and a coating layer 3. In this invention, the fiber core 1, cladding 2, and coating layer 3 are all conventional components of an optical fiber, and the method for manufacturing the optical fiber body is also a mature existing technology in the field, and will not be described in detail here.

[0037] S2. Manufacture a protective sleeve 7. The protective sleeve 7 is ring-shaped and can be fitted onto the optical fiber body. The protective sleeve 7 includes multiple integrated protective units that are evenly distributed along the circumference of the optical fiber body. Each protective unit includes an integrated elastic part 8 and a support part 9. The elastic part 8 is arc-shaped and has a strip-shaped structure.

[0038] S3. Multiple protective sleeves 7 are fitted onto the optical fiber body. After the protective sleeves 7 are fitted onto the optical fiber body, the first end of the elastic part 8 abuts against the optical fiber body, and a distance is left between the second end of the elastic part 8 and the optical fiber body. The support part 9 is located between the second end of the elastic part 8 and the optical fiber body.

[0039] Through steps S2 and S3, the high-strength special optical fiber manufactured by this invention mainly includes an optical fiber body and a protective sleeve 7 fitted onto the optical fiber body. The protective sleeve 7 contains protective units that primarily function to resist impact and prevent excessive bending of the optical fiber body. Specifically, multiple protective units can protect the optical fiber body from different directions. The elastic portion 8 within the protective unit is spaced from the optical fiber body. When the protective unit is subjected to external impact, the elastic portion 8 can deform, thereby absorbing the impact force and preventing direct impact on the optical fiber body, thus protecting it. The support portion 9 can support the elastic portion 8 and allow it to smoothly return to its original position after the impact, thus continuously protecting the optical fiber body. On the other hand, when the optical fiber body needs to be bent, such as when it needs to go around a wall edge, the protective sleeve 7 can be fixed at the bending position. The protective sleeve 7 supports the optical fiber body, preventing bending loss due to excessive bending and ensuring the stability and reliability of signal transmission.

[0040] Furthermore, in this invention, the protective sleeve 7 can be made of metal, such as copper, aluminum, or stainless steel. Correspondingly, the method for manufacturing the protective sleeve 7 in S2 includes S21 to S23.

[0041] S21. Cut the metal strip into multiple rectangular metal sheets. Specifically, first unwind the coiled metal strip, then cut it into multiple rectangular metal sheets. The length of each metal sheet must be greater than the circumference of the optical fiber body, i.e., the perimeter of the cross-section of the optical fiber body.

[0042] S22. Bend the metal sheet along its length and fix the two ends of the metal sheet together to form a ring-shaped metal strip 35. Since the metal material is used, the two ends of the metal sheet can be fixed by welding.

[0043] S23. The annular metal strip 35 is extruded to form multiple protective units, resulting in a protective sleeve 7. To ensure the accuracy of the processed protective units, multiple protective units can be extruded one by one.

[0044] To improve the stability of the protective sleeve 7 on the optical fiber body and prevent the protective sleeve 7 from shifting due to vibration or other reasons, thus avoiding excessive bending of the optical fiber body, the protective sleeve 7 can be bonded to the optical fiber body. To facilitate fixing the protective sleeve 7 by bonding, before cutting the metal strip into multiple rectangular metal sheets, multiple through holes 10 evenly distributed along the length of the metal strip are punched into the metal strip. After the protective sleeve 7 is processed, the through holes 10 are located between two adjacent protective units, specifically at the junction of the support part 9 in the preceding protective unit and the elastic part 8 in the following protective unit. Because the first ends of both the support part 9 and the elastic part 8 abut against the optical fiber body, the through holes 10 are also tightly attached to the surface of the optical fiber body. Based on this, adhesive can be applied to the junction of the two protective units. The adhesive can pass through the through holes 10 and contact the optical fiber body. After drying, part of the adhesive is fixed to the optical fiber body, and the other part is fixed to the protective sleeve 7, thereby achieving the effect of connecting the optical fiber body and the protective sleeve 7. By fixing the protective sleeve 7 to the optical fiber body, displacement of the protective sleeve 7 can be prevented, thus ensuring continued protection of the optical fiber body. The specific material of the adhesive is existing technology, such as epoxy resin adhesive, and will not be described in detail here.

[0045] The present invention further provides a manufacturing system for realizing the above-mentioned high-strength special optical fiber manufacturing method. The manufacturing system includes a stamping device, a cutting device, a first forming device, and a second forming device.

[0046] A stamping machine is used to stamp multiple through holes 10 that are evenly distributed along the length of a metal strip.

[0047] Cutting equipment used to cut metal strips into multiple rectangular metal sheets.

[0048] The first forming device is used to bend the metal sheet along its length and fix the two ends of the metal sheet to form a ring-shaped metal strip 35.

[0049] The second forming equipment is used to extrude the annular metal strip 35 to form multiple protective units, thus obtaining a protective sleeve.

[0050] In manufacturing the aforementioned high-strength special optical fiber, the optical fiber body is first manufactured using existing technology. Then, through holes 10 are punched into a metal strip using a stamping device. Next, the metal strip with multiple through holes 10 is cut using a cutting device to obtain multiple rectangular metal sheets, the length of which is greater than the circumference of the optical fiber body. Subsequently, the metal sheets are bent using a first forming device, and the two ends of the metal sheets are welded and fixed to form an annular metal strip 35. Then, the annular metal strip 35 is extruded using a second forming device to obtain protective sleeves 7. Finally, multiple protective sleeves 7 are fitted onto the optical fiber body to complete the processing of the high-strength special optical fiber.

[0051] It should be noted that the cutting equipment and the first forming equipment mentioned above are all existing technologies, such as existing automatic steel strip cutting machines and tube making machines.

[0052] like Figure 4 As shown, the specific structure of the stamping equipment is as follows: The stamping equipment includes a feeding conveyor 18 for transporting metal strip. The conveyor belt of the feeding conveyor 18 includes two units 27, and a gap 28 is left between the two units 27. A stamping driver 20 is arranged above the gap 28. The stamping driver 20 drives and connects to multiple downward stamping heads 21. A base 22 is fixedly arranged below the gap 28. Multiple stamping channels 23 corresponding to the stamping heads 21 are opened on the base 22. All stamping channels 23 are connected to a chip removal channel 24, which runs through the bottom of the base 22. When machining the through hole 10, the metal strip is first unwound from its coiled state. Then, the metal strip is conveyed to the area below the stamping head 21 via the feeding conveyor 18, and the feeding conveyor 18 is paused. Next, the stamping driver 20 drives multiple stamping heads 21 downwards, using the stamping heads 21 to extrude and cut the metal strip, thus forming the through hole 10. The cut-off debris enters the chip removal channel 24 through the conventional stamping channel 23 and is then discharged outwards. One stamping driver 20 connects to multiple stamping heads 21, allowing multiple through holes 10 to be machined simultaneously, thereby improving processing efficiency. It should be noted that the stamping driver 20 can employ a conventional hydraulic mechanism or a cylinder, which will not be elaborated upon here.

[0053] Furthermore, to better collect the cut debris for reuse, the chip removal channel 24 is connected to a downward-extending chip removal pipe 25. A chip removal conveyor 26 is installed below the chip removal pipe 25, and the conveying direction of the chip removal conveyor 26 is different from that of the feeding conveyor 18. After passing through the chip removal channel 24, the debris passes through the chip removal pipe 25 and finally falls downward onto the chip removal conveyor 26, where it is transported away. The chip removal pipe 25 can constrain the falling direction of the debris, ensuring that it falls smoothly onto the chip removal conveyor 26. It should be noted that both the feeding conveyor 18 and the chip removal conveyor 26 can be conventional belt conveyors; however, the belt in the feeding conveyor 18 consists of two individual units 27.

[0054] like Figure 5 As shown, in order to ensure the accuracy of the through hole 10, especially to ensure that the through hole 10 is located in the middle of the metal strip, a guide plate 19 can be set on each side of the feeding conveyor 18. The end of the guide plate 19 near the material feeding direction is connected to an outwardly inclined guide part 29. If the metal strip deviates during the movement, it will contact the guide part 29 and then be changed in direction by the guide part 29, and finally smoothly enter between the two guide plates 19. The two edges of the metal strip contact the two guide plates 19 respectively, thereby using the guide plates 19 to limit the metal strip and ensure that the through hole 10 is located in the middle of the metal strip.

[0055] like Figure 6 As shown, the structure of the second forming device is as follows: The second forming device includes a strip-shaped fixed mold 30, an annular metal strip 35 that can be sleeved on the fixed mold 30, a plurality of shaping protrusions 31 integrally connected to the peripheral side wall of the fixed mold 30, a plurality of shaping pressure blocks 33 arranged on the peripheral side of the fixed mold 30, a shaping groove 32 formed between two adjacent shaping pressure blocks 33, and a compression driver 34 connected to the shaping pressure block 33 for driving the shaping pressure block 33 to approach or move away from the fixed mold 30. The shaping pressure block 33 and the shaping protrusions 31 cooperate to compress the annular metal strip 35 to form a protective unit.

[0056] After obtaining the annular metal strip 35, it is fitted onto the fixed mold 30. Then, the extrusion drivers 34 are activated one by one, driving the shaping blocks 33 to move. When the shaping block 33 approaches the shaping protrusion 31, a cavity is formed between the shaping block 33 and the shaping protrusion 31. A portion of the annular metal strip 35 is extruded into the cavity and finally shaped to form the protective unit. Obviously, the cavity should match the shape of the protective unit.

[0057] To ensure processing accuracy, the fixed mold 30 is set horizontally. After the annular metal strip 35 is fitted onto the fixed mold 30, it falls downwards under gravity until it contacts the highest point of the fixed mold 30 and stabilizes. Then, a pressing driver 34 above the highest point of the fixed mold 30 drives the connected shaping block 33 to move downwards to press the annular metal strip 35. Because the position of the annular metal strip 35 is stable at this time, it will not shift during the pressing process, ensuring the processing accuracy of the first protective unit. Subsequently, the pressing of the annular metal strip 35 is maintained, and the remaining pressing drivers 34 are activated sequentially, ultimately processing the annular metal strip 35 into a protective sleeve 7.

[0058] like Figures 1 to 3 As shown, the present invention finally provides a high-strength special optical fiber, which is manufactured using the above-described high-strength special optical fiber manufacturing method. The high-strength special optical fiber includes an optical fiber body and a plurality of protective sleeves 7 sleeved on the optical fiber body. The optical fiber body includes a fiber core 1, a cladding 2 disposed on the surface of the fiber core 1, and a coating layer 3 covering the cladding 2. The protective sleeves 7 are annular and can be sleeved on the optical fiber body. The protective sleeves 7 include a plurality of integrally connected and uniformly distributed protective units along the circumference of the optical fiber body. The protective units include an integrally connected elastic part 8 and a support part 9. The elastic part 8 is arc-shaped. When the protective sleeve 7 is sleeved on the optical fiber body, the first end of the elastic part 8 abuts against the optical fiber body, and the second end of the elastic part 8 leaves a distance between it and the optical fiber body. The support part 9 is located between the second end of the elastic part 8 and the optical fiber body.

[0059] In the special optical fiber of this invention, the structure of the optical fiber body is existing technology. Appropriate core material and structure can be selected according to actual needs, and will not be elaborated further here. The protective sleeve 7 is used to protect the optical fiber body, mainly to prevent external impacts from causing damage or even breakage. Specifically, the multiple protective units of the protective sleeve 7 can protect the optical fiber body from different directions. When an external object impacts a protective unit, the elastic part 8 can absorb energy and deform, preventing the impact force from acting directly on the optical fiber body, thus protecting the optical fiber body. More specifically, because the first end of the elastic part 8 rests against the optical fiber body, while the second end is separated from the optical fiber body, and a support part 9 is provided between the second end and the optical fiber body, when the elastic part 8 is impacted, it deforms and pushes the support part 9 towards another protective unit. This allows the support part 9 to also absorb some energy, preventing the elastic part 8 from being subjected to excessive force and causing permanent deformation, ensuring continuous protection of the optical fiber body. Correspondingly, in two adjacent protection units, a distance is left between the support part 9 of one protection unit and the elastic part 8 of the other protection unit to form a deformation region 11, so that the support part 9 can tilt in the deformation region 11.

[0060] In practical applications, the laying environment of special optical fibers is often complex, and only certain locations may require special protection. For example, the section that bypasses a wall may come into contact with the wall's ribs and is prone to bending loss due to excessive deformation or damage from pressure from the wall ribs. The section that is in contact with the wall surface may not require protection. Therefore, in the special optical fiber of this invention, it is not necessary to cover the entire optical fiber body with protective sleeves 7; only the locations requiring protection need to be covered.

[0061] To further enhance the strength of the special optical fiber and improve the stability of the protective sleeve 7, an outer sheath 4 is fixedly fitted onto the coating layer 3. Multiple raised strips 5 extending along the length of the optical fiber body are provided on the peripheral wall of the outer sheath 4. All raised strips 5 are evenly distributed along the circumference of the optical fiber body, with a gap between adjacent raised strips 5 forming a groove 6. When the protective sleeve 7 is fitted onto the optical fiber body, the first end of the elastic part 8 and the support part 9 both abut against the bottom of the groove 6. The outer sheath 4 can be made of the material of conventional optical fiber, which will not be elaborated further here. By increasing the thickness of the outer sheath 4, the overall strength of the special optical fiber can be further improved. Furthermore, by setting the raised strips 5 and the groove 6, the connection between two adjacent protective units in the protective sleeve 7 can be limited, preventing the protective sleeve 7 from rotating. It also makes the connection of the protective sleeve 7 to the optical fiber body with adhesive easier to operate.

[0062] Furthermore, in the direction from the first end to the second end, the distance between the elastic part 8 and the optical fiber body gradually increases and then gradually decreases. This arrangement allows the elastic part 8 to have a larger deformation space, enabling more effective protection of the optical fiber body.

[0063] If the application environment of the special optical fiber is corrosive, such as in a high-humidity area, the protective sleeve 7 will corrode rapidly, potentially rendering it unable to protect the optical fiber body. To avoid this, a heat-shrinkable sleeve 12 is fitted onto the protective sleeve 7, and the heat-shrinkable sleeve 12 can be fixed to the outer sheath 4 by a binding member 17. More specifically, multiple annular positioning grooves 13 are formed on the outer sheath 4. Correspondingly, the heat-shrinkable sleeve 12 has a covering portion 14 that covers the protective sleeve 7. Each end of the covering portion 14 is connected to a tapered transition portion 15. The larger end of the transition portion 15 connects to the covering portion 14, and the smaller end of the transition portion 15 fits onto the optical fiber body. The binding member 17 can retract into the annular positioning grooves 13, thereby fixing the heat-shrinkable sleeve 12. After the heat-shrinkable sleeve 12 is fixed, it can be shrunk by heating and tightly wrapped around the protective sleeve 7 to prevent external corrosive factors from eroding the protective sleeve 7. It should be noted that the material of the heat shrink tubing 12 is existing technology, such as polyolefin, which will not be described in detail here. The binding component 17 can be a conventional cable tie or metal wire.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of manufacturing a high-strength specialty optical fiber, characterized by, The method comprises the following steps: manufacturing an optical fiber body comprising a core (1), a cladding (2) and a coating layer (3); manufacturing a protective sleeve (7) which is annular and can be sleeved on the optical fiber body, the protective sleeve (7) comprising a plurality of protective units which are integrally connected and uniformly distributed along the circumferential direction of the optical fiber body, the protective unit comprising an elastic part (8) and a supporting part (9) which are integrally connected, the elastic part (8) being arc-shaped; sleeving a plurality of the protective sleeves (7) on the optical fiber body, after the protective sleeves (7) are sleeved on the optical fiber body, the first end of the elastic part (8) abuts against the optical fiber body, and the second end of the elastic part (8) is spaced apart from the optical fiber body, and the supporting part (9) is located between the second end of the elastic part (8) and the optical fiber body.

2. The method of making a high-strength specialty optical fiber according to claim 1, wherein, The method for manufacturing the protective sleeve (7) comprises: cutting a metal strip into a plurality of rectangular metal pieces; bending the metal pieces in the length direction and fixedly connecting the two ends of the metal pieces to form an annular metal strip (35); extruding the annular metal strip (35) to form a plurality of protective units to obtain the protective sleeve (7).

3. The method of making a high-strength specialty optical fiber according to claim 2, wherein, Before cutting the metal strip into a plurality of rectangular metal pieces, a plurality of through holes (10) which are uniformly distributed along the length direction of the metal strip are punched on the metal strip.

4. A high-strength specialty optical fiber manufacturing system for implementing the high-strength specialty optical fiber manufacturing method as claimed in claim 3, characterized by, The manufacturing system comprises: a punching device for punching a plurality of through holes (10) which are uniformly distributed along the length direction of the metal strip on the metal strip; a cutting device for cutting the metal strip into a plurality of rectangular metal pieces; a first forming device for bending the metal pieces in the length direction and fixedly connecting the two ends of the metal pieces to form an annular metal strip (35); a second forming device for extruding the annular metal strip (35) to form a plurality of protective units to obtain the protective sleeve.

5. The manufacturing system of claim 4, wherein, The punching device comprises a feeding conveyor (18) for conveying the metal strip, the conveying belt of the feeding conveyor (18) comprises two monomers (27), and a gap (28) is left between the two monomers (27), a punching driver (20) is arranged above the gap (28), the punching driver (20) is drivenly connected with a plurality of downward punching heads (21), a base (22) is fixedly arranged below the gap (28), a plurality of punching channels (23) corresponding to the punching heads (21) are formed in the base (22), all the punching channels (23) are commonly communicated with a chip removal channel (24), and the chip removal channel (24) penetrates through the bottom of the base (22).

6. The manufacturing system of claim 4, wherein, The second forming equipment comprises a strip-shaped fixed mold (30), the annular metal band (35) can be sleeved on the fixed mold (30), a plurality of shaping protrusions (31) are integrally connected on the circumferential side wall of the fixed mold (30), a plurality of shaping pressing blocks (33) are arranged on the circumferential side of the fixed mold (30), the shaping pressing blocks (33) are connected with extrusion drivers (34) for driving the shaping pressing blocks (33) to approach or move away from the fixed mold (30), and the shaping pressing blocks (33) are correspondingly matched with the shaping protrusions (31) and can extrude the annular metal band (35) to form the protection unit.

7. A high-strength specialty optical fiber made using the high-strength specialty optical fiber manufacturing method of any one of claims 1-3, characterized in that, The high-strength special optical fiber comprises an optical fiber body and a plurality of protection sleeves (7) sleeved on the optical fiber body, the optical fiber body comprises a fiber core (1), a cladding layer (2) arranged on the surface of the fiber core (1) and a coating layer (3) covering the cladding layer (2), the protection sleeve (7) is annular and can be sleeved on the optical fiber body, the protection sleeve (7) comprises a plurality of protection units integrally connected and uniformly distributed along the circumferential direction of the optical fiber body, the protection unit comprises an elastic part (8) and a supporting part (9) integrally connected, the elastic part (8) is arc-shaped, when the protection sleeve (7) is sleeved on the optical fiber body, the first end of the elastic part (8) abuts against the optical fiber body, and the second end of the elastic part (8) is away from the optical fiber body, and the supporting part (9) is located between the second end of the elastic part (8) and the optical fiber body.

8. The high-strength specialty optical fiber according to claim 7, wherein, An outer skin (4) is fixedly sleeved on the coating layer (3), a plurality of protruding strips (5) extending along the length direction of the optical fiber body are arranged on the circumferential side wall of the outer skin (4), all the protruding strips (5) are uniformly distributed along the circumferential direction of the optical fiber body, a distance is left between two adjacent protruding strips (5) to form a groove (6), when the protection sleeve (7) is sleeved on the optical fiber body, the first end of the elastic part (8) and the supporting part (9) both abut against the bottom of the groove (6).

9. The high-strength specialty optical fiber of claim 7, wherein, In the direction from the first end to the second end, the distance between the elastic part (8) and the optical fiber body gradually increases first and then gradually decreases.

10. The high-strength specialty optical fiber of claim 8, wherein, A heat-shrinkable sleeve (12) is sleeved on the protection sleeve (7), and the heat-shrinkable sleeve (12) can be fixed on the outer skin (4) through a binding piece (17).

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