Optical fiber insertion core of special-shaped guide hole and manufacturing method of optical fiber insertion core

By designing the fiber ferrule of the special-shaped guide hole, using a diamond-shaped guide groove and a multi-row guide block structure, the problem of poor quality and insertion effect caused by the circular shape of the existing fiber ferrule guide holes and sockets is solved, and more efficient fiber insertion and more stable core production are achieved.

CN120028919AInactive Publication Date: 2025-05-23SHENZHEN JIUSHUO PRECISION TECH CO LTD
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Patent Information

Application Number
CN202510496219.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2025-05-23
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The introduction holes and jacks of the existing fiber optic ferrule are both round, with small hole diameters and high accuracy requirements, which leads to the easy deformation of the mold needle, poor quality of the fiber optic ferrule, and poor fiber insertion effect.

Method used

Design a fiber ferrule with a special-shaped guide hole, using a diamond-shaped introduction groove and a circular or regular polygonal optical fiber jack. Through multiple rows of introduction grooves and guide block structures, the fiber insertion efficiency and stability of the ferrule are improved.

Benefits of technology

It improves the installation efficiency and quality of optical fiber ferrule, reduces the difficulty of mold making, enhances the stability of products and mold accessories, and improves the quality of injection molding production and product production stability.

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Abstract

The invention belongs to the field of optical fiber connectors, and discloses an optical fiber insertion core with a special-shaped guide hole and a manufacturing method thereof.The optical fiber insertion core comprises an insertion core body, the insertion core body is provided with an optical fiber insertion groove and an optical fiber insertion hole, the optical fiber insertion hole is communicated with the optical fiber insertion groove, and the inner side wall of the optical fiber insertion groove is connected with a first guide block, a second guide block and a third guide block; the first guide block is provided with a first through groove, two ends of the second guide block are respectively provided with a transition through groove, the third guide block is provided with a third through groove, the first through groove and the transition through grooves define a lead-in groove, the longitudinal section of the lead-in groove is rhombic, the longitudinal section of the optical fiber jack is circular or regular polygonal, and the diameter of an inscribed circle of the lead-in groove is larger than that of an inscribed circle of the optical fiber jack; according to the technical scheme, the leading-in grooves are integrated in a row, so that the manufacturing difficulty of the mold is reduced, the stability of products and mold accessories is greatly improved, the quality during injection molding production is improved, the production stability of the products is improved, the quality is better guaranteed, and the manufacturing threshold of the insertion core is reduced.
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Description

Technical Field

[0001] The invention relates to the field of optical fiber connectors, and in particular to an optical fiber insert with a special-shaped guide hole and a manufacturing method thereof. Background Art

[0002] A multi-core fiber optic connector is a multi-core, multi-channel plug-in connector used for internal connections in optical transceiver equipment such as data centers and splitters in high-density, narrow environments. The multi-core fiber optic connector ferrule is a key component that determines the connection characteristics of the connector. The currently used fiber optic ferrules are all injection molded. In order to better connect with the optical fiber, most of the currently used fiber optic ferrules are equipped with a larger diameter lead-in hole at the front end of the optical fiber jack. However, the currently used fiber optic ferrules still have the following technical problems when in use: Currently, the ferrule lead-in hole and the jack are both circular, with a small hole diameter and high precision requirements, and each group of lead-in holes are relatively independent, which results in the mold drawing needle being very thin and easily deformed, which in turn leads to poor quality of the final fiber optic ferrule. At the same time, the circular lead-in hole is not convenient for the insertion of the optical fiber, and the use effect is poor. Summary of the invention

[0003] The present invention is intended to provide an optical fiber ferrule with a special-shaped guide hole and a manufacturing method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: A fiber optic ferrule with a special-shaped guide hole comprises a ferrule body, the ferrule body is provided with a fiber optic insertion groove, the side wall of the fiber optic insertion groove is provided with a glue injection hole, the ferrule body is provided with a fiber optic jack, the fiber optic jack is provided with a plurality of groups, the fiber optic jack is communicated with the fiber optic insertion groove, the inner side wall of the fiber optic insertion groove is connected with a first guide block, a second guide block and a third guide block, the second guide block is provided with a plurality of groups, and the plurality of groups of the second guide blocks are sequentially arranged from top to bottom along the side wall of the fiber optic insertion groove, the first guide block is provided with a first through groove, the two ends of the second guide block are respectively provided with transition through grooves, the third guide block is provided with a third through groove, the first through groove, the transition through groove and the third through groove are respectively provided with a plurality of groups, the first through groove and the transition through groove form an introduction groove, the third through groove and the transition through groove also form an introduction groove, and the transition slots of two adjacent groups of the second guide blocks also form an introduction groove, the longitudinal section of the introduction groove is rhombus-shaped, the longitudinal section of the fiber optic jack is circular or regular polygonal, and the diameter of the inscribed circle of the introduction groove is greater than the diameter of the inscribed circle of the fiber optic jack.

[0005] Preferably, the ferrule body is provided with a transition hole, and two ends of the transition hole are respectively connected to the introduction groove and the optical fiber hole.

[0006] Preferably, the lengths of the plurality of groups of the second guide blocks increase from top to bottom, the length of the first guide block is smaller than the length of the second guide block at the top, and the length of the third guide block is larger than the length of the second guide block at the bottom.

[0007] Preferably, the ferrule body is provided with a guide hole.

[0008] Preferably, the ferrule body comprises a fiber outlet surface, and the fiber outlet surface is inclined.

[0009] Preferably, the angle between the optical fiber exit hole surface and the vertical plane is 5° to 15°.

[0010] Preferably, the first guide block, the second guide block and the third guide block are respectively provided with an inclined guide surface.

[0011] A method for manufacturing an optical fiber ferrule comprises the following steps: S1, preparing modified glass fiber, soaking the glass fiber in an acetone solution for 12-24 hours, then washing with distilled water, and then drying, soaking the dried glass fiber in a silane coupling agent KH560, using glacial acetic acid to adjust the pH value of the mixed solution to 5, allowing the dried glass fiber to react in the silane coupling agent KH560 for 12-24 hours, separating, washing, and drying the glass fiber after the reaction to obtain a modified glass fiber; S2, preparing a modified inorganic filler, placing one or more of zirconium dioxide, aluminum oxide, iron oxide, zinc oxide and calcium carbonate into an propylene glycol solution, stirring for 2 hours to obtain a primary mixed solution, adding a silane coupling agent to the primary mixed solution, stirring again to obtain a secondary mixed solution, placing the secondary mixed solution in an ultrasonic environment to react for 12-24 hours, separating the secondary mixed solution after the reaction to obtain a modified inorganic filler coarse material, washing and drying the modified inorganic filler coarse material to obtain a modified inorganic filler; S3, preparing other raw materials, including polyphenylene sulfide, compatibilizer, lubricant and antioxidant; S4, preparing materials, adding 30-40 wt% of modified glass fiber; 20-35 wt% of modified inorganic filler, 2-3 wt% of compatibilizer, 1.5 wt% of lubricant, 0.3 wt% of antioxidant, 25-45 wt% of polyphenylene sulfide into a mixing container, mixing to obtain a mixture, wherein the modified glass fiber is prepared by the above step S1, and the modified inorganic filler is prepared by the above step S2, adding the mixture into a screw extruder for hot mixing, extruding, and shearing to obtain core insert special material particles; S5, injection molding, hot melting, injection molding, hot pressing and cooling the ferrule special material particles to obtain the optical fiber ferrule.

[0012] Preferably, in step S2, the raw materials are stirred at a speed of 3000-5000 rpm to obtain a primary mixed solution, and the primary mixed solution is stirred at 5000-6000 rpm to obtain a secondary mixed solution.

[0013] Preferably, the lubricant is silicone powder.

[0014] Compared with the prior art, this technical solution produces the following beneficial effects: (1) The technical solution sets the introduction groove to a diamond shape, which greatly increases the opening area of ​​the introduction groove without increasing the volume of the optical fiber ferrule, so that the optical fiber can be inserted into the introduction groove and the optical fiber jack more easily and quickly, thereby improving the installation efficiency of the optical fiber ferrule; the introduction groove is composed of a plurality of groups of first through grooves, transition through grooves and third through grooves, which are matched one by one, so that the introduction groove is a row-in-one type, which reduces the difficulty of mold manufacturing, greatly improves the stability of the product and mold accessories, improves the quality of injection molding production, improves product production stability, and ensures better quality, thereby lowering the manufacturing threshold of MT multi-hole ferrules.

[0015] (2) The technical solution sets multiple rows of guide grooves so that a single ferrule can allow multiple optical fibers to pass through, greatly improving the expandability and compatibility of the optical fiber connector ferrule. The length of the second guide block is greater than the length of the first guide block, and the length of the third guide block is greater than the length of the second guide block, so that the lower side extension length of the guide groove is greater than the upper side extension length of the guide groove, so that the optical fiber can enter the guide groove more stably, further improving the installation efficiency; the optical fiber outlet surface is set to be inclined, which increases the contact area of ​​the optical fiber and improves the docking accuracy.

[0016] (3) This technical solution improves the materials and methods for preparing the ferrule, thereby improving the quality of the molded optical fiber ferrule and avoiding deformation of the optical fiber ferrule during injection molding, thereby greatly improving the molding quality of the optical fiber ferrule. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 It is a front cross-sectional view of embodiment 1 of the present invention; Figure 3 It is a right side cross-sectional view of Embodiment 1 of the present invention; Figure 4 It is a right side view of Embodiment 1 of the present invention; Figure 5 is a top view of embodiment 1 of the present invention; Figure 6 It is a right side cross-sectional view of embodiment 3 of the present invention; Figure 7 It is a right side cross-sectional view of Embodiment 2 of the present invention; Figure 8This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure numerals: ferrule body 1, optical fiber insertion slot 2, glue injection hole 3, optical fiber insertion hole 4, guide hole 5, first guide block 6, second guide block 7, third guide block 8, first through slot 9, transition insertion hole 10, transition through slot 11, third through slot 12, introduction slot 13, optical fiber exit surface 14, inclined guide surface 15. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: The following is a general description of the arrangement of the plurality of groups of second guide blocks 7. A fiber optic ferrule with a special-shaped guide hole comprises a ferrule body 1, wherein guide holes 5 are respectively arranged on the front and rear sides of the ferrule body 1, the ferrule body 1 is provided with a fiber optic insertion groove 2, and a glue injection hole 3 is arranged on the top side wall of the fiber optic insertion groove 2, through which glue can be dispensed into the fiber optic insertion groove 2 to fix the optical fiber and the ferrule body 1, the ferrule body 1 is provided with a fiber optic jack 4, and the fiber optic jack 4 is provided with a plurality of groups, the fiber optic jack 4 is connected with the fiber optic insertion groove 2, and a first guide block 6, a second guide block 7 and a third guide block 8 are connected to the left inner wall of the fiber optic insertion groove 2, and the second guide block 7 is provided with a plurality of groups, and the plurality of groups of the second guide blocks 7 are arranged in sequence from top to bottom along the side wall of the fiber optic insertion groove 2, and the first guide block 6, the second guide block 7 and the third guide block 8 are also arranged in sequence from top to bottom, that is, the first guide block 6, the first group of second guide blocks 7, the second group of second guide blocks 7, the third group of second guide blocks 8 are arranged in sequence from top to bottom in the fiber optic insertion groove. Block 7, the nth group of second guide blocks 7, and the third guide block 8, and then different rows of introduction grooves 13 and optical fiber plug holes 4 can be set according to actual production needs, the lower end of the first guide block 6 is provided with a first through groove 9, the upper and lower ends of the second guide block 7 are respectively provided with transition through grooves 11, and the upper end of the third guide block 8 is provided with a third through groove 12, and the first through groove 9, the transition through groove and the third through groove are respectively provided with a plurality of groups, the first through groove 9 and the transition through groove 11 arranged on the upper side of the second guide block 7 adjacent to the first guide block 6 form an introduction groove 13, and a plurality of groups of introduction grooves 13 correspond to a plurality of groups of optical fiber plug holes 4 one by one, so that the optical fiber can enter the optical fiber plug hole 4 from the introduction groove 13, the third through groove 12 and the transition through groove 11 arranged on the lower side of the second guide block 7 adjacent to the third guide block 8 also form an introduction groove 13, and the two groups of transition through grooves of two adjacent groups of second guide blocks 7 can also form an introduction groove, and a plurality of groups of optical fiber plug holes 4 and introduction grooves 13 are arranged side by side; The length of the uppermost second guide block 7 is greater than that of the first guide block 6, the length of the third guide block 8 is greater than that of the lowermost second guide block 7, and the lengths of the several groups of the second guide blocks 7 increase from top to bottom, that is, the length of the first group of second guide blocks 7 is greater than the length 6 of the first guide blocks, the length of the second group of second guide blocks 7 is greater than the length of the first group of second guide blocks 7, the length of the nth group of second guide blocks 7 is greater than the length 7 of the n-1th group of second guide blocks, and the length of the third guide block is greater than the length of the nth group of second guide blocks. The arrangement of multiple rows of lead-in grooves 13 is achieved by arranging multiple groups of second guide blocks 7, and the core body 1 includes a fiber outlet surface 14.

[0019] The longitudinal section of the optical fiber plug hole 4 is circular or regular polygonal, that is, the optical fiber plug hole 4 can be a circular hole or a regular polygonal hole, and the diameter of the inscribed circle of the introduction groove 13 is larger than the diameter of the inscribed circle of the optical fiber plug hole 4. When the optical fiber plug hole 4 is set as a circular plug hole, the diameter of the inscribed circle of the introduction groove 13 is larger than the diameter of the optical fiber plug hole 4.

[0020] Embodiment 1,

[0021] like Figures 1 to 5 The optical fiber ferrule with a special-shaped guide hole shown in the figure comprises a ferrule body 1, guide holes 5 are respectively provided on the front and rear sides of the ferrule body 1, the ferrule body 1 is provided with an optical fiber insertion groove 2, and a glue injection hole 3 is provided on the top side wall of the optical fiber insertion groove 2, through which glue can be dispensed into the optical fiber insertion groove 2 to fix the optical fiber and the ferrule body 1, the ferrule body 1 is provided with an optical fiber jack 4, and the optical fiber jack 4 is provided with a plurality of groups, the optical fiber jack 4 is connected to the optical fiber insertion groove 2, and the left inner side wall of the optical fiber insertion groove 2 is connected with a first guide block 6, a second guide block 7 and a third guide block 8, and the first guide block 6, the second guide block 7 and The third guide blocks 8 are arranged in sequence from top to bottom, the first guide block 6 has a first through groove 9 at the lower end, the second guide block 7 has transition through grooves 11 at the upper and lower ends, and the third guide block 8 has a third through groove 12 at the upper end. The first through groove 9, the transition through groove and the third through groove are respectively provided with a plurality of groups, the first through groove 9 and the transition through groove 11 are surrounded by an introduction groove 13, and a plurality of groups of introduction grooves 13 correspond to a plurality of groups of optical fiber plug holes 4 one by one, so that the optical fiber can enter the optical fiber plug hole 4 from the introduction groove 13, the third through groove 12 and the transition through groove 11 are also surrounded by an introduction groove 13, and a plurality of groups of optical fiber plug holes 4 and the introduction groove 13 are arranged side by side. Figure 3 As shown, the first through grooves 9 are sequentially arranged from left to right along the lower side of the first guide block 6, and a plurality of groups of first through grooves 9 form a group of tooth-shaped structures on the lower side of the first guide block 6. The arrangement of the transition through grooves 11 on the second guide block 7 and the arrangement of the third through grooves 12 on the third guide block 8 are the same as the arrangement of the first through grooves 9 on the first guide block 6. The longitudinal section of a group of introduction grooves 13 is rhombus-shaped, as shown in FIG. Figure 3As shown, the first through groove 9 does not directly conflict with the transition through groove 11, and there is a certain distance between the lower side of the first through groove 9 and the upper side of the transition through groove 11, which is smaller than the diameter of the optical fiber to be inserted. This arrangement facilitates the subsequent molding of the ferrule. The longitudinal section of the optical fiber jack 4 is circular, the diameter of the inscribed circle of the introduction groove 13 is larger than the diameter of the optical fiber jack 4, and the ferrule body 1 is provided with a transition jack 10, and the two ends of the transition jack 10 are respectively connected to the introduction groove 13 and the optical fiber jack 4; the first guide block 6, the second guide block 7 and the third guide block 8 are respectively provided with an inclined guide surface 15, and the inclined guide surface 15 is provided on the side of the introduction groove 13 away from the optical fiber jack 4, so that the end of the introduction groove 13 away from the optical fiber jack 4 is horn-shaped, which is convenient for the optical fiber to be better inserted into the introduction groove 13 when inserted.

[0022] The length of the second guide block 7 is greater than that of the first guide block 6, the length of the third guide block 8 is greater than that of the second guide block 7, and the ferrule body 1 includes a fiber exit surface 14, such as Figure 1 and Figure 2 As shown, the left side surface of the ferrule body 1 is the optical fiber outlet surface 14, and the optical fiber outlet surface 14 is inclined, and the angle between the optical fiber outlet surface 14 and the vertical plane is 15°.

[0023] When actually set up for production use, the first guide block 6 , the second guide block 7 and the third guide block 8 can be integrally formed with the ferrule body 1 .

[0024] The method for preparing the optical fiber ferrule comprises the following steps: S1, preparing modified glass fiber, soaking the glass fiber in an acetone solution for 18 hours, then washing with distilled water, and then drying, soaking the dried glass fiber in a silane coupling agent KH560, adding glacial acetic acid dropwise to adjust the pH value of the mixed solution to 5, allowing the glass fiber to react in the silane coupling agent KH560 for 18 hours, separating, washing, and drying the glass fiber after the reaction to obtain a modified glass fiber; S2, preparing a modified inorganic filler, placing zirconium dioxide in a propylene solution, stirring at a speed of 3000-5000 rpm for 2h to obtain a preliminary mixed solution, adding a silane coupling agent to the preliminary mixed solution, stirring again at 5000-6000 rpm to obtain a secondary mixed solution, placing the secondary mixed solution in an ultrasonic environment for reaction for 18 hours, separating the secondary mixed solution after the reaction to obtain a modified inorganic filler coarse material, washing and drying the modified inorganic filler coarse material to obtain a modified inorganic filler; S3, preparing other raw materials, including polyphenylene sulfide, compatibilizer, lubricant and antioxidant, wherein the lubricant is silicone powder; S4, preparing materials, adding 35 wt% of modified glass fiber; 30 wt% of modified inorganic filler, 2.5 wt% of compatibilizer, 1.5 wt% of silicone powder, 0.3 wt% of antioxidant, 40 wt% of polyphenylene sulfide into a mixing container, mixing to obtain a mixture, wherein the modified glass fiber is prepared by the above step S1, and the modified inorganic filler is prepared by the above step S2, adding the mixture into a screw extruder for hot mixing, extruding, and shearing to obtain core insert special material particles; S5, injection molding, hot melting, injection molding, hot pressing and cooling the ferrule special material particles to obtain the optical fiber ferrule.

[0025] Embodiment 2,

[0026] The difference between the second embodiment and the first embodiment is that the longitudinal section of the single introduction groove 13 is circular. Figure 7 and Figure 8 As shown, at this time, the diameter of the inscribed circle of the introduction groove 13 is the diameter of the introduction groove 13. Figure 7 and Figure 8 In order to better show the structure of the introduction groove 13, the third guide block 8 and the transition groove 11 on the lower side of the second guide block 7 are not shown in the figure. However, in actual setting, the third guide block 8 can be set in the same way as the structure in Example 1, which is specially explained here.

[0027] Embodiment 3, The difference between the embodiment 3 and the embodiment 1 is that the longitudinal section of the single introduction groove 13 is triangular, and there is no gap between the first through groove 9 and the transition through groove 11. Figure 6 As shown, the lower side wall of the first through groove 9 directly conflicts with the upper side wall of the transition through groove 11, and the lead-in grooves 13 in the same row are arranged in the form of positive and negative triangles from left to right, so that the lead-in grooves 13 can reasonably use the volume of the core while increasing the diameter of its inscribed circle, which is convenient for optical fiber insertion; utilizing the stable characteristics of the triangle, the stability of the product and the mold needle extraction is also greatly improved, the difficulty of mold manufacturing is reduced, the production stability of the core is improved, and the core molding quality is improved.

[0028] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An optical fiber ferrule with a special-shaped guide hole, characterized in that: The invention comprises a core plug body (1), the core plug body (1) is provided with an optical fiber insertion groove (2), the side wall of the optical fiber insertion groove (2) is provided with a glue injection hole (3), the core plug body (1) is provided with an optical fiber insertion hole (4), the optical fiber insertion hole (4) is provided with a plurality of groups, the optical fiber insertion hole (4) is communicated with the optical fiber insertion groove (2), the inner side wall of the optical fiber insertion groove (2) is connected with a first guide block (6), a second guide block (7) and a third guide block (8), the second guide block (7) is provided with a plurality of groups, and the plurality of groups of the second guide blocks (7) are arranged in sequence from top to bottom along the side wall of the optical fiber insertion groove (2), the first guide block (6) is provided with a first through groove (9), both ends of the second guide block (7) are respectively provided with transition through grooves (11), the third guide block (8) is provided with a plurality of transition through grooves (12), and the third guide block (8) is provided with a plurality of transition through grooves (13). The guide block (8) is provided with a third through groove (12), the first through groove (9), the transition through groove (11) and the third through groove (12) are respectively provided in a plurality of groups, the first through groove (9) and the transition through groove (11) enclose an introduction groove (13), the third through groove (12) and the transition through groove (11) also enclose an introduction groove (13), and the transition through grooves (11) of two adjacent groups of the second guide blocks (7) also enclose an introduction groove (13), a plurality of the first through grooves (9) are arranged in sequence from front to back along the lower side wall of the first guide block (6), the longitudinal section of the introduction groove (13) is in the shape of a rhombus, a triangle or a circle, the longitudinal section of the optical fiber insertion hole (4) is in the shape of a circle or a regular polygon, and the inscribed circle diameter of the introduction groove (13) is larger than the inscribed circle diameter of the optical fiber insertion hole (4).

2. The optical fiber ferrule with a special-shaped guide hole according to claim 1, characterized in that: The ferrule body (1) is provided with a transition plug hole (10), and two ends of the transition plug hole (10) are respectively connected to the introduction groove (13) and the optical fiber plug hole (4).

3. The optical fiber ferrule with a special-shaped guide hole according to claim 1, characterized in that: The lengths of the plurality of groups of the second guide blocks (7) increase from top to bottom, the length of the first guide block (6) is smaller than the length of the second guide block (7) at the top, and the length of the third guide block (8) is larger than the length of the second guide block (7) at the bottom.

4. The optical fiber ferrule with a special-shaped guide hole according to claim 1, characterized in that: The insert body (1) is provided with a guide hole (5).

5. The optical fiber ferrule with a special-shaped guide hole according to claim 1, characterized in that: The ferrule body (1) comprises an optical fiber outlet surface (14), and the optical fiber outlet surface (14) is arranged at an inclination.

6. The optical fiber ferrule with a special-shaped guide hole according to claim 5, characterized in that: The angle between the optical fiber exit surface (14) and the vertical plane is 5° to 15°.

7. The optical fiber ferrule with a special-shaped guide hole according to claim 1, characterized in that: The first guide block (6), the second guide block (7) and the third guide block (8) are respectively provided with an inclined guide surface (15).

8. The method for manufacturing an optical fiber ferrule according to any one of claims 1 to 7, characterized in that: The following steps are included: S1, preparing modified glass fiber, soaking the glass fiber in an acetone solution for 12-24 hours, then washing with distilled water, and then drying, soaking the dried glass fiber in a silane coupling agent KH560, adjusting the pH value of the mixed solution with glacial acetic acid so that the pH value of the mixed solution is 5, allowing the dried glass fiber to react in the silane coupling agent KH560 for 12-24 hours, separating, washing, and drying the glass fiber after the reaction to obtain a modified glass fiber; S2, preparing a modified inorganic filler, placing one or more of zirconium dioxide, aluminum oxide, iron oxide, zinc oxide and calcium carbonate into an propylene glycol solution, stirring for 2 hours to obtain a primary mixed solution, adding a silane coupling agent to the primary mixed solution, stirring again to obtain a secondary mixed solution, placing the secondary mixed solution in an ultrasonic environment to react for 12-24 hours, separating the secondary mixed solution after the reaction to obtain a modified inorganic filler coarse material, washing and drying the modified inorganic filler coarse material to obtain a modified inorganic filler; S3, preparing other raw materials, including polyphenylene sulfide, compatibilizer, lubricant and antioxidant; S4, preparing materials, adding 30-40 wt% of modified glass fiber; 20-35 wt% of modified inorganic filler, 2-3 wt% of compatibilizer, 1.5 wt% of lubricant, 0.3 wt% of antioxidant, 25-45 wt% of polyphenylene sulfide into a mixing container, mixing to obtain a mixture, wherein the modified glass fiber is prepared by the above step S1, and the modified inorganic filler is prepared by the above step S2, adding the mixture into a screw extruder for hot mixing, extruding, and shearing to obtain core insert special material particles; S5, injection molding, hot melting, injection molding, hot pressing and cooling the ferrule special material particles to obtain the optical fiber ferrule.

9. The method for manufacturing an optical fiber ferrule according to claim 8, characterized in that: In step S2, the raw materials are stirred at a speed of 3000-5000 rpm to obtain a primary mixed solution, and the primary mixed solution is stirred at a speed of 5000-6000 rpm to obtain a secondary mixed solution.

10. The method for manufacturing an optical fiber ferrule according to claim 8, characterized in that: The lubricant is silicone powder.

Citation Information

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