WO2017215410A1

WO2017215410A1 - Mold for manufacturing optical fiber connector and method for manufacturing optical fiber connector

Info

Publication number: WO2017215410A1
Application number: PCT/CN2017/085400
Authority: WO
Inventors: 沈宇杰
Original assignee: 苏州高精特专信息科技有限公司
Priority date: 2016-06-18
Filing date: 2017-05-22
Publication date: 2017-12-21
Also published as: CN105948756A; CN108162141A; CN105948756B; CN108129150A; CN108162141B

Abstract

A mold for manufacturing an optical fiber connector and a method for manufacturing an optical fiber connector using the mold. The mold comprises a pressing die (1), a positioning die (2), a sleeving die (3), and a forming die (4). When the optical fiber connector is manufactured, the forming die (4) is fixedly mounted on a base of a pressing machine, the sleeving die (3) is fitted on the forming die (4), the positioning die (2) is mounted in the sleeving die (3), and the pressing die (1) is fitted over the positioning die (2).

Description

Description: A mold for manufacturing an optical fiber connector and a method for manufacturing the optical fiber connector

[0001] The present invention relates to the field of connector technology, and more particularly to a method of manufacturing a fiber optic connector and a method of manufacturing the fiber optic connector.

Background technique

[0002] With the rapid development of communication and measurement and control technologies, the application of optical fibers is increasing. Fibers usually have two connections, one is fusion, which requires complex and expensive connection equipment, and the connection speed is slow; the second is the active connection, and the common connection is the fiber connector.

technical problem

[0003] The fiber continuator in the prior art has a complicated structure, a large number of manufacturing processes, and a high cost. In precision ranging devices, due to the small size of the device, it is desirable to have a smaller, simpler fiber optic connector.

Problem solution

Technical solution

In order to solve the above problems, an object of the present invention is to disclose a mold for manufacturing an optical fiber connector which can manufacture key components in a fiber optic connector of a simple structure, and further discloses a method of manufacturing the fiber connector; It is achieved by the following technical solutions.

[0005] A mold for manufacturing an optical fiber connector, which is characterized in that it is composed of a pressing die, a positioning die, a socket die, and a molding die; and a fiber connecting head is manufactured, and the molding die is fixedly mounted on the base of the press, and is sleeved The mold is set on the molding die, the positioning die is installed in the socket die, and the pressing die is set outside the positioning die;

[0006] The molding die is composed of a base, and the center of the base has a cylindrical concave hole, and the concave hole does not penetrate the lower surface of the base, and the concave hole has a first pillar extending upward from the center of the bottom surface of the concave hole. The first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole are symmetrically distributed outside the concave hole, and the first/second/third/fourth positioning holes are not penetrated The upper surface of the lower surface of the seat protrudes from the upper surface of the base, the first pillar has a cylindrical shape, and the diameter of the first pillar is smaller than the diameter of the recess;

[0007] The sleeve mold is a socket cylinder body sleeve, and a circular cylinder sleeve sleeve extending downward from a center of a lower surface of the sleeve body The first positioning post, the second positioning post, the third positioning post and the fourth positioning post are formed by the connecting body, the bottom of the lower surface of the sleeve body extending downwardly and located outside the sleeve body and symmetrically distributed with respect to the sleeve body The sleeve body has a sleeve hole penetrating along the axis of the sleeve body, the diameter of the sleeve hole is equal to the inner diameter of the sleeve body, and the axis of the sleeve hole coincides with the axis of the sleeve body; the first positioning column The diameter of the second positioning post is smaller than the diameter of the second positioning hole, the diameter of the third positioning post is smaller than the diameter of the third positioning hole, and the diameter of the fourth positioning post is smaller than the diameter of the fourth positioning hole. The diameter of the sleeve is smaller than the diameter of the recessed hole, and the diameter of the sleeve is larger than the diameter of the first pillar; the length of the first positioning post is not greater than the depth of the first positioning hole, and the length of the second positioning post is not greater than The depth of the second positioning hole is not greater than the depth of the third positioning hole, the length of the fourth positioning column is not greater than the depth of the fourth positioning hole, and the length of the socket is not less than the depth of the hole;

[0008] The positioning die is composed of a cylindrical positioning die body, and the positioning die body has a cylindrical positioning die hole extending upward from the lower surface, and the positioning die hole does not penetrate the upper surface of the positioning die body, and the positioning die hole The axis of the positioning mold coincides with the axis of the positioning die body. The diameter of the positioning die hole is slightly larger than the diameter of the first pillar. The depth of the positioning die hole is not less than the length of the first pillar. The diameter of the positioning die body is smaller than the diameter of the socket hole. The length of the body is not less than: the sum of the height of the socket body and the height of the socket;

[0009] The pressing die is composed of a pressing connecting portion, a cylindrical pressing die body located under the pressing connecting portion and integrally connected with the pressing connecting portion, and the inside of the pressing die body has a cylindrical shape extending upward from the lower surface of the pressing die body. Pressing the hole, the axis of the pressing hole coincides with the axis of the pressing mold body, the pressing hole is through the upper and lower surfaces of the pressing mold body, the length of the pressing mold body is not less than the length of the positioning mold body, and the diameter of the pressing mold body is smaller than the sleeve The diameter of the hole, the diameter of the pressing hole is larger than the diameter of the positioning mold body.

[0010] A method of manufacturing an optical fiber connector, characterized in that the manufacturing method uses the above-described mold for manufacturing an optical fiber connector, and the manufacturing method includes the following steps in sequence:

[0011] The first step: placing the first positioning post into the first positioning hole, the second positioning post is placed into the second positioning hole, the third positioning post is placed into the third positioning hole, and the fourth positioning post is placed into the fourth positioning hole The hole is sleeved into the concave hole, and the sleeve hole is sleeved outside the first pillar, and the relative position of the molding die and the socket die is fixed;

[0012] The second step: injecting ceramic powder into the socket hole, reaching below the upper surface of the first pillar and maintaining a section of the day

The compacted ceramic powder forms a bottom of the fiber connector body and the fiber fixing hole, so that the height of the bottom of the fiber connector body is 2.0 mm±0.5 mm, such as 2.0 mm; [0013] The third step: placing the positioning die into the socket hole, so that the positioning die hole is sleeved outside the first pillar;

[0014] The fourth step: re-injecting the ceramic powder into the socket hole to reach the position below the upper surface of the socket mold, causing the pressing mold to move downward, and the pressing hole is sleeved outside the positioning mold body, and pressing to connect the optical fiber The length of the upper portion of the head body is a certain value of 6 mm to 23 mm, such as 6 mm, etc.; and the upper portion of the fiber connector body and the cable cavity are formed for a period of time; the manufacture of the body of the fiber connector is completed;

[0015] Step 5: The embryo body of the fiber connector is placed in a step furnace to complete the manufacture of the fiber connector.

[0016] In the above manufacturing method, the molding die is fixedly mounted on the base of the press, the socket mold is set on the molding die, the positioning die is installed in the socket die, and the pressing die is set outside the positioning die.

[0017] The method for manufacturing the optical fiber connector described above, characterized in that the ceramic powder is nano-alumina or nano-silica or nano-silicon carbide ceramic or the ceramic powder is in parts by weight, Made of ceramic powder of raw materials: silicon carbide: 60~70 parts, zirconia: 10~20 parts, silica: 15~25 parts, titanium dioxide: 4~6 parts, polyethylene wax: 1~2 parts, poly Ammonium acrylate: 1 to 3 parts, polyvinyl alcohol: 0. 3 to 0.5 parts, cerium oxide: 0.1 to 0.3 parts, oleic acid: 2 to 4 parts, commercially available model 622 light stabilizer: 0. 05~0.15 , commercially available model UV-327 UV absorber: 0.04~0.10 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.1~0.3 parts; or the ceramic by weight Made of ceramic powder consisting of: silicon carbide: 60 parts, zirconia: 10 parts, silica: 15 parts, titanium dioxide: 4 parts, polyethylene wax: 1 part, ammonium polyacrylate: 1 part, poly Vinyl alcohol: 0.3 parts, cerium oxide: 0.1 parts, oleic acid: 2 parts, commercially available type 622 light stabilizer 0.05 parts, commercially available UV-327 UV absorber: 0.04 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.1 parts; or the ceramic by weight, by weight Made of ceramic powder of raw materials: silicon carbide: 65 parts, zirconia: 15 parts, silica: 20 parts, titanium dioxide: 5 parts, polyethylene wax: 1.5 parts, ammonium polyacrylate: 2 parts, polyvinyl alcohol: 0.4 parts, yttrium oxide: 0.2 parts, oleic acid: 3 parts, commercially available model 622 light stabilizer: 0.10 parts, commercially available UV-327 UV absorber: 0.07 parts, commercially available model KT- Anti-yellowing agent of 023 or V78-P TDS: 0.2 parts; or the ceramic is made of ceramic powder consisting of the following raw materials by weight: silicon carbide: 70 parts, zirconia: 20 parts, silicon oxide: 25 Parts, titanium dioxide: 6 parts, polyethylene wax: 2 parts, ammonium polyacrylate: 3 parts, polyvinyl alcohol: 0.5 parts, cerium oxide: 0.3 parts, oleic acid: 4 parts, commercially available model 622 light stabilizer : 0.15 parts, commercially available UV-327 UV absorber: 0.10 parts , commercially available as KT-023 or V78-P TDS anti-yellowing agent: 0.3 parts; or the ceramic is made by weight of ceramic powder consisting of the following materials: Silicon carbide: 68 parts, zirconia: 12 parts, silicon oxide: 18 parts, titanium dioxide: 4 parts, polyethylene wax: 1.6 parts, ammonium polyacrylate: 2.2 parts, polyvinyl alcohol: 0.36 parts, cerium oxide: 0.18 parts, oleic acid: 3 parts, city Light stabilizer of model 622: 0.08 parts, commercially available UV-327 UV absorber: 0.09 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.24 parts.

Advantageous effects of the invention

Beneficial effect

[0018] The production method in the present invention has advantageous effects such as fewer steps, high manufacturing efficiency, less equipment investment, and high product yield. The mold in the invention has the following main beneficial technical effects: the structure is simple and easy to manufacture, the manufactured optical fiber connector has uniform dimensions, high yield of finished products, fast manufacturing speed and low cost; the optical fiber connector formed by the optical fiber connector has small volume and weight. light.

Brief description of the drawing

DRAWINGS

1 is a schematic perspective view of a fiber optic connector manufactured by the present invention.

2 is an enlarged schematic structural view of the cross section taken along line B-B of FIG. 1.

[0021] FIG. 3 is a schematic perspective view of the assembled and disassembled structure of the present invention.

4 is a schematic perspective view of a three-dimensional pressing die of the present invention.

5 is a schematic perspective view of a positioning die of the present invention.

6 is a schematic perspective view of a socket mold of the present invention.

7 is a schematic perspective view of a molding die of the present invention.

8 is a schematic enlarged view of the cross section of FIG. 3 taken along the line A-A.

BEST MODE FOR CARRYING OUT THE INVENTION

[0027] Please refer to FIG. 1 to FIG. 8, a mold for manufacturing an optical fiber connector, which is characterized in that it is composed of a pressing die 1, a positioning die 2, a socket die 3, and a molding die 4; The die 4 is fixedly mounted on the base of the press, the socket die 3 is set on the molding die 4, the positioning die 2 is mounted in the socket die 3, and the press die 1 is set in Positioning die 2;

[0028] The molding die 4 is composed of a base 41 having a cylindrical recess 43 in the center thereof. The recess 43 does not penetrate the lower surface of the base 41. The recess 43 has a bottom surface from the recess 43. The first struts 44 extending upwardly from the center, the first locating holes 421, the second locating holes 422, the third locating holes 423, and the fourth locating holes 424 are symmetrically distributed with respect to the axis of the recessed holes 43. The second/third/fourth positioning holes are not penetrated through the lower surface of the base 41. The upper surface of the first post 44 protrudes from the upper surface of the base 41, and the first post 44 has a cylindrical shape. The diameter of one of the pillars 44 is smaller than the diameter of the recessed hole 43;

[0029] The socket die 3 is extended from the sleeve body 31 to the center of the lower surface of the lower surface of the sleeve body 31, and extends downward from the center of the lower surface of the sleeve body 31. And the first positioning post ₃₃ 1 , the second positioning post 332 , the third positioning post 333 , and the fourth positioning post 334 are disposed outside the socket body 32 and symmetrically distributed with respect to the socket body, and the socket mold body 31 has an internal portion. a sleeve hole 321 extending through the axis of the sleeve body, the diameter of the sleeve hole is equal to the inner diameter of the sleeve body, and the axis of the sleeve hole coincides with the axis of the sleeve body; the diameter of the first positioning rod 331 is smaller than the first The diameter of the second positioning post 332 is smaller than the diameter of the second positioning hole 422, the diameter of the third positioning post 332 is smaller than the diameter of the third positioning hole 423, and the diameter of the fourth positioning post 334 is smaller than the fourth positioning hole. The diameter of the 424 is smaller than the diameter of the recessed hole 43. The diameter of the sleeve 321 is larger than the diameter of the first pillar 44. The length of the first positioning pillar 331 is not greater than the depth of the first positioning hole 421, The length of the two positioning posts 332 is not greater than the depth of the second positioning holes 422. The length of the third positioning post 332 is not greater than the depth of the third positioning hole 423, the length of the fourth positioning post 334 is not greater than the depth of the fourth positioning hole 424, and the length of the socket 32 is not less than the depth of the recess 43;

[0030] The positioning die 2 is composed of a cylindrical positioning die body 21 having a cylindrical positioning die hole 211 extending upward from the lower surface, and the positioning die hole 211 does not penetrate the positioning die body 21 The axis of the positioning die hole 211 coincides with the axis of the positioning die body 21. The diameter of the positioning die hole 211 is slightly larger than the diameter of the first pillar 44. The depth of the positioning die hole 211 is not less than the length of the first pillar 44. The diameter of the body 21 is smaller than the diameter of the sleeve hole 321 , and the length of the positioning die body 21 is not less than: the sum of the height of the socket die body 31 and the height of the socket body 32;

[0031] The press mold 1 is composed of a press joint portion 11, a cylindrical press mold body 12 located below the press joint portion 11 and integrally connected with the press joint portion 11, and the press mold body 12 has a self-press mold body 12 inside. a cylindrical pressing hole 121 having a lower surface extending upward, an axis of the pressing hole 121 and an axis of the pressing mold body 12 The pressing holes 121 are inserted through the upper and lower surfaces of the stamping die body 12. The length of the stamping die body 12 is not less than the length of the positioning die body 21. The diameter of the stamping die body 12 is smaller than the diameter of the socket hole 321, and the pressing hole 121 is pressed. The diameter is larger than the diameter of the positioning mold body 21.

Embodiments of the invention

[0032] The above-mentioned mold for manufacturing an optical fiber connector, characterized in that the material of the pressing mold, the positioning mold, the socket mold, and the molding die are all steel or iron or an alloy.

[0033] The principle of the present invention is as follows: manufacturing a fiber optic connector head, the molding die 4 is fixedly mounted on the base of the press, the socket die 3 is set on the molding die 4, and the positioning die 2 is mounted in the socket die 3 The pressing mold 1 is set outside the positioning die 2; the first positioning post 331 is first placed in the first positioning hole 421, the second positioning post 332 is placed in the second positioning hole 422, and the third positioning post 332 is placed in the third positioning hole The fourth positioning post 334 is inserted into the fourth positioning hole, and the socket body 32 is inserted into the recessed hole 43. The sleeve hole 321 is sleeved outside the first pillar 44, and the relative position of the molding die 4 and the socket die 3 is fixed. Then, the ceramic powder is injected into the socket 321 to reach a proper position below the upper surface of the first pillar 44 and held for a period of time. The ceramic powder is compacted to form the bottom of the fiber connector body 5 and the fiber fixing hole 52; The die 2 is placed in the socket hole 321 so that the positioning die hole 211 is sleeved outside the first pillar 44; then the ceramic powder is injected into the sleeve hole 321 to reach the position below the upper surface of the socket die 3, so that the stamper is pressed. 1 Move down and make the set of pressed holes 121 Outside the positioning mold body 21, pressing to a suitable position and maintaining a section of the fiber to form the upper portion of the fiber connector body 5 and the cable cavity 51; completing the manufacture of the fiber body of the fiber connector, and then sintering to complete the fiber connection The manufacture of the head.

[0034] After the pressing is completed, the pressing die 1 is taken back, the positioning die 2 is taken out, the socket die 3 is taken back, and the embryo body is taken out, that is, the manufacture of the fiber connector is completed, and the embryo body has a large hardness, so it is convenient. The removal is not deformed; then the residue in the molding die 4 is cleaned.

[0035] The first time the crucible is pressed, the appropriate position, that is, the high and low positions, the height of the bottom of the fiber connector body 5 can be determined; additional flat plates corresponding to the recessed holes 43 and the first pillars 44 are required for pressing, and the diameter of the flat plate is slightly smaller. The diameter of the recessed hole 43, the corresponding position of the flat plate has a hole slightly larger than the diameter of the first strut 44, and the flat plate can be sleeved on the first strut 44; the second pressing cymbal, the proper position, that is, the upper part of the optical fiber connector head body 5 The height is determined according to the needs.

[0036] The mold in the present invention can produce optical fiber connectors of different lengths and sizes. [0037] In the present invention, the first to fourth positioning posts are not limited to four, and may be at least two. Of course, there may be other multiples; meanwhile, the first to fourth positioning holes are not limited to four. It can be at least two, of course, it can be other than one, as long as it can accommodate the positioning post.

In the present invention, the depth of the recessed hole 43 is 2.0 mm ± 0.5 mm.

In the present invention, the length of the ferrule body 31 is 8 mm to 25 mm.

[0040] A method of manufacturing an optical fiber connector, characterized in that the manufacturing method uses the above-described mold for manufacturing an optical fiber connector, and the manufacturing method includes the following steps in sequence:

[0041] The first step: placing the first positioning post into the first positioning hole, the second positioning post is placed into the second positioning hole, the third positioning post is placed into the third positioning hole, and the fourth positioning post is placed into the fourth positioning hole The hole is sleeved into the concave hole, and the sleeve hole is sleeved outside the first pillar, and the relative position of the molding die and the socket die is fixed;

[0042] The second step: injecting ceramic powder into the socket hole, reaching below the upper surface of the first pillar and maintaining a section of the day

The compacted ceramic powder forms a bottom of the fiber connector body and the fiber fixing hole, so that the height of the bottom of the fiber connector body is 2.0 mm±0.5 mm, such as 2.0 mm;

[0043] The third step: placing the positioning die into the socket hole, so that the positioning die hole is sleeved outside the first pillar;

[0044] The fourth step: re-injecting the ceramic powder into the socket hole to reach the position below the upper surface of the socket mold, so that the pressing mold moves downward, and the pressing hole is sleeved outside the positioning mold body, and the pressing is performed to connect the optical fiber. The length of the upper portion of the head body is a certain value of 6 mm to 23 mm, such as 6 mm, etc.; and the upper portion of the fiber connector body and the cable cavity are formed for a period of time; the manufacture of the body of the fiber connector is completed;

[0045] Step 5: The embryo body of the fiber connector is placed in a step furnace to complete the manufacture of the fiber connector.

[0046] In the above manufacturing method, the molding die is fixedly mounted on the base of the press, the socket mold is set on the molding die, the positioning die is installed in the socket die, and the pressing die is set outside the positioning die.

[0047] The method for manufacturing an optical fiber connector according to the above, characterized in that the ceramic powder is nano-alumina or nano-silica or nano-silicon carbide ceramic or the ceramic powder is in parts by weight, Made of ceramic powder of raw materials: silicon carbide: 60~70 parts, zirconia: 10~20 parts, silica: 15~25 parts, titanium dioxide: 4~6 parts, polyethylene wax: 1~2 parts, poly Ammonium acrylate: 1 to 3 parts, polyvinyl alcohol: 0. 3 to 0.5 parts, cerium oxide: 0.1 to 0.3 parts, oleic acid: 2 to 4 parts, commercially available model 622 light stabilizer: 0. 05~0.15 Parts, commercially available UV-327 UV absorber: 0.04~0.10 parts, commercially available model KT Anti-yellowing agent of -023 or V78-P TDS: 0.1~0.3 parts; or the ceramic is made of ceramic powder consisting of the following raw materials by weight: silicon carbide: 60 parts, zirconium oxide: 10 parts, oxidation Silicon: 15 parts, titanium dioxide: 4 parts, polyethylene wax: 1 part, ammonium polyacrylate: 1 part, polyvinyl alcohol: 0.3 parts, cerium oxide: 0.1 part, oleic acid: 2 parts, commercially available model number 622 Light stabilizer: 0.05 parts, commercially available UV-327 UV absorber: 0.04 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.1 parts; or the ceramic by weight Manufactured from ceramic powder consisting of: silicon carbide: 65 parts, zirconia: 15 parts, silica: 20 parts, titanium dioxide: 5 parts, polyethylene wax: 1.5 parts, ammonium polyacrylate: 2 parts, Polyvinyl alcohol: 0.4 parts, cerium oxide: 0.2 parts, oleic acid: 3 parts, commercially available model 622 light stabilizer: 0.10 parts, commercially available UV-327 type UV absorber: 0.07 parts, commercially available Anti-yellowing agent of model KT-023 or V78-P TDS: 0.2 parts; or the ceramic by weight, by Made of ceramic powder of the following raw materials: silicon carbide: 70 parts, zirconia: 20 parts, silica: 25 parts, titanium dioxide: 6 parts, polyethylene wax: 2 parts, ammonium polyacrylate: 3 parts, polyvinyl alcohol : 0.5 parts, yttrium oxide: 0.3 parts, oleic acid: 4 parts, commercially available model 622 light stabilizer: 0.15 parts, commercially available UV-327 UV absorber: 0.10 parts, commercially available model KT- Anti-yellowing agent of 023 or V78-P TDS: 0.3 parts; or the ceramic is made of ceramic powder consisting of the following materials by weight: silicon carbide: 68 parts, zirconia: 12 parts, silicon oxide: 1 8 parts, titanium dioxide: 4 parts, polyethylene wax: 1.6 parts, ammonium polyacrylate: 2.2 parts, polyvinyl alcohol: 0.36 parts, cerium oxide: 0.18 parts, oleic acid: 3 parts, commercially available model 622 light stable Agent: 0.08 parts, commercially available UV-327 UV absorber: 0.09 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.24 parts.

Industrial applicability

[0048] The present inventors have experimentally produced samples which have been industrially implemented and have industrial applicability. The formula of the above ceramic material is sequentially referred to as: a wide range formula, a first formula, a second formula, a third formula, a fourth formula, and in the above order, the product serial numbers of the present invention made by using the above materials are respectively represented as #1, #2, #3, #4, #5; This product, which is commercially available as W0.25 ceramic, is #6; the first connector is represented by code A, and the second connector is indicated by code B. The third connector is represented by code C, and each sample is taken from 100 samples. After testing, the following test results are obtained.

[0049] No. 2 meter high free fall test

[0050] #1 without splitting [0051] #2 no cracking

[0052] #3 无幵裂

[0053] #4 without cleft palate

[0054] #5 without cleft palate

[0055] #6 Total splitting 35 pieces (A12 pieces, B10 pieces, C13 pieces)

[0056] Test item: 2000N continuous 5 minute pressure test (pressed in the empty cable cavity position, using a platen with a length x width of: 50m mx50mm and a thickness of 10mm)

[0057] #1 无幵裂

[0058] #2 without cracking

[0059] #3 without cleft palate

[0060] #4 without cleft palate

[0061] #5 No cracking

[0062] #6 Splitting 86 pieces (A35 pieces, B25 pieces, C26 pieces)

[0063] Test item: 100 ° C, 100% humidity, continuous 240 hours test

[0064] #1 No deformation, normal use

[0065] #2 No deformation, normal use

[0066] #3 No deformation, can be used normally

[0067] #4 No deformation, normal use

[0068] #5 No deformation, normal use

[0069] #6 There are 3 pieces that cannot be used normally (A2 pieces, B No, C1 pieces)

[0070] Test item: -80 ° C, continuous 240 hours test

[0071] #1 No deformation, normal use

[0072] #2 No deformation, normal use

[0073] #3 No deformation, normal use

[0074] #4 No deformation, can be used normally

[0075] #5 No deformation, normal use

[0076] #6 There are 2 pieces that cannot be used normally (A1, B, C1)

[0077] Test item: Light intensity is 2000W/m ² , continuous 240 hours test [0078] #1 color is normal, no yellowing

[0079] #2 color is normal, no yellowing

[0080] #3 color is normal, no yellowing

[0081] #4 color is normal, no yellowing

[0082] #5 color is normal, no yellowing

[0083] #6 There are 64 pieces with yellowing (A22 pieces, B21 pieces, C21 pieces)

As apparent from the above, the product made of the ceramic material of the present invention has more excellent drop resistance, pressure resistance, complex environment resistance, and glare resistance.

The manufacturing method of the present invention has advantageous effects such as fewer steps, high manufacturing efficiency, less equipment investment, and high product yield.

[0086] The invention has the following main beneficial technical effects: the structure is simple and easy to manufacture, the manufactured optical fiber connector has uniform dimensions, high yield of finished products, fast manufacturing speed and low cost; the optical fiber connector formed by the optical fiber connector has small volume and weight. light.

The present invention is not limited to the above-described preferred embodiments, and it should be understood that the concept of the present invention may be embodied in other forms, and they are also within the scope of the present invention. .

Claims

claims

[Claim 1] A mold for manufacturing optical fiber connectors, consisting of a pressing mold, a positioning mold, a socket mold, and a forming mold; It is characterized in that: when manufacturing optical fiber connectors, the forming mold is fixedly installed on the base of the press, The socket mold is installed on the forming mold, the positioning mold is installed in the socket mold, and the pressing mold is installed outside the positioning mold;

The forming mold is composed of a base. The center of the base has a cylindrical recessed hole. The recessed hole does not penetrate the lower surface of the base. The recessed hole has a first pillar extending upward from the center of the bottom surface of the recessed hole. Outside the recessed hole, It has first positioning holes, second positioning holes, third positioning holes, and fourth positioning holes that are symmetrically distributed relative to the axis of the recessed hole. The first/second/third/fourth positioning holes are all not penetrating the bottom of the base. surface, the upper surface of the first pillar is protruding from the upper surface of the base, the first pillar is cylindrical, and the diameter of the first pillar is smaller than the diameter of the recessed hole; the depth of the recessed hole is 2.0 mm ± 0.5 mm;

The socket mold consists of a socket mold body, an annular cylindrical socket body extending downward from the center of the lower surface of the socket mold body, and extending downward from the center of the lower surface of the socket mold body and located outside the socket body. It is composed of a first positioning column, a second positioning column, a third positioning column and a fourth positioning column that are symmetrically distributed relative to the socket body. The socket mold body has a socket hole extending along the axis of the socket mold body. The socket hole The diameter of is equal to the inner diameter of the socket body, and the axis of the socket hole coincides with the axis of the socket body; the diameter of the first positioning post is smaller than the aperture of the first positioning hole, and the diameter of the second positioning post is smaller than the diameter of the second positioning hole. The diameter of the third positioning post is smaller than the diameter of the third positioning hole. The diameter of the fourth positioning post is smaller than the diameter of the fourth positioning hole. The outer diameter of the socket body is smaller than the diameter of the recessed hole. The diameter of the socket hole is larger than the diameter of the first positioning hole. The diameter of the pillar; the length of the first positioning post is not greater than the depth of the first positioning hole, the length of the second positioning post is not greater than the depth of the second positioning hole, the length of the third positioning post is not greater than the depth of the third positioning hole, The length of the four positioning posts is not greater than the depth of the fourth positioning hole, and the length of the socket is not less than the depth of the concave hole; the positioning mold is composed of a cylindrical positioning mold body, and the positioning mold body has a cylinder extending upward from the lower surface The positioning die hole does not penetrate the upper surface of the positioning die body. The axis of the positioning die hole coincides with the axis of the positioning die body. The diameter of the positioning die hole is slightly larger than the diameter of the first pillar. The depth is not less than the length of the first pillar, and the positioning mold The diameter of the body is smaller than the diameter of the socket hole, and the length of the positioning mold body is not less than: the sum of the height of the socket mold body and the height of the socket body;

The pressing mold is composed of a pressing connecting portion and a cylindrical pressing mold body located below the pressing connecting portion and integrally connected to the pressing connecting portion. The pressing mold body has a cylindrical pressing hole extending upward from the lower surface of the pressing mold body. The axis of the pressing hole coincides with the axis of the pressing mold body. The pressing hole penetrates the upper and lower surfaces of the pressing mold body. The length of the pressing mold body is not less than the length of the positioning mold body. The diameter of the pressing mold body is smaller than the diameter of the socket hole. , the diameter of the pressing hole is larger than the diameter of the positioning die body.

[Claim 2] A mold for manufacturing optical fiber connectors according to claim 1, characterized in that the length of the socket mold body is 8mm~25mm.

[Claim 3] A mold for manufacturing optical fiber connectors according to claim 1 or claim 2, characterized in that the pressing mold, positioning mold, socket mold, and forming mold are all made of steel or iron or alloy.

[Claim 4] A method of manufacturing an optical fiber connector, using the mold for manufacturing an optical fiber connector described in any one of claims 1 to 3, and the manufacturing method includes the following steps in sequence:

Step 1: Place the first positioning post into the first positioning hole, the second positioning post into the second positioning hole, the third positioning post into the third positioning hole, the fourth positioning post into the fourth positioning hole, and set The connecting body is placed into the concave hole, and the socket hole is placed outside the first pillar, so that the relative position of the forming mold and the socket mold is fixed;

Step 2: Inject ceramic powder into the socket hole until it reaches below the upper surface of the first pillar and maintain it for a period of time. Compact the ceramic powder to form the bottom of the fiber optic connector body and the fiber fixing hole, so that the fiber optic connector body is The height of the bottom is a certain value of 2.0mm±0.5mm; Step 3: Put the positioning mold into the socket hole, so that the positioning mold hole is outside the first pillar; Step 4: Inject into the socket hole again When the ceramic powder reaches a position below the upper surface of the socket mold, the pressing mold is moved downward, and the pressing hole is placed outside the positioning mold body. The length of the upper part of the optical fiber connector body is suppressed to a certain value of 6 mm to 23 mm. ; and maintain a period of time to form the upper part of the fiber optic connector body and the cable-accommodating cavity; the embryonic body of the fiber optic connector is completed manufacturing;

Step 5: Put the embryonic body of the optical fiber connector into the stepping kiln for sintering, completing the manufacturing of the optical fiber connector;

In the above manufacturing method, the forming mold is fixedly installed on the base of the press, the socket mold is sleeved on the forming mold, the positioning mold is installed in the sleeve mold, and the pressing mold is sleeved outside the positioning mold.

[Claim 5] The manufacturing method of an optical fiber connector according to claim 4, characterized in that the length of the socket mold body is 8mm~25mm.

[Claim 6] The manufacturing method of an optical fiber connector according to claim 4 or claim 5, characterized in that the materials of the pressing mold, positioning mold, socket mold and forming mold are all Steel or iron or alloy.

[Claim 7] A method for manufacturing an optical fiber connector according to claim 6, characterized in that the ceramic powder is nano-alumina or nano-silicon oxide or nano-silicon carbide ceramics or the ceramic powder is by weight In parts, it is made of ceramic powder composed of the following raw materials: silicon carbide: 60 to 70 parts, zirconium oxide: 10 to 20 parts, silicon oxide: 15 to 25 parts, titanium dioxide: 4 to 6 parts, polyethylene wax: 1 ~2 parts, ammonium polyacrylate: 1~3 parts, polyvinyl alcohol: 0.3~0.5 parts, yttrium oxide: 0.1~0.3 parts, oleic acid: 2~4 parts, commercially available light stabilizer model 622: 0.05~ 0.1 5 parts, commercially available ultraviolet absorber model UV-327: 0.04~0.10 parts, commercially available anti-yellowing agent model KT-023 or V78-P TDS: 0.1~0.3 parts; or the ceramic by weight parts, made of ceramic powder composed of the following raw materials: silicon carbide: 60 parts, zirconium oxide: 10 parts, silicon oxide: 15 parts, titanium dioxide: 4 parts, polyethylene wax: 1 part, ammonium polyacrylate: 1 part , polyvinyl alcohol: 0.3 parts, yttrium oxide: 0.1 parts, oleic acid: 2 parts, commercially available light stabilizer model 622: 0.05 parts, commercially available ultraviolet absorber model UV-327: 0.04 parts, commercially available Anti-yellowing agent with model number KT-023 or V78-P TDS: 0.1 part; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: Silicon carbide: 65 parts, Zirconia: 15 parts, Silicon oxide: 20 parts, titanium dioxide: 5 parts, polyethylene wax: 1.5 parts, ammonium polyacrylate: 2 parts, polyvinyl alcohol: 0.4 parts, yttrium oxide: 0.2 parts, oleic acid: 3 parts, the commercial model is 622 Light stabilizer: 0.10 parts, commercially available ultraviolet absorber model UV-327: 0.0 7 parts, commercially available anti-yellowing agent model KT-023 or V78-P TDS: 0.2 parts; or as described Ceramics are made of ceramic powder composed of the following raw materials in parts by weight: silicon carbide: 70 parts, zirconium oxide: 20 parts, silicon oxide: 25 parts, titanium dioxide: 6 parts, polyethylene wax: 2 parts, ammonium polyacrylate : 3 parts, polyvinyl alcohol: 0.5 parts, yttrium oxide: 0.3 parts, oleic acid: 4 parts, commercially available light stabilizer model 622: 0.15 parts, commercially available ultraviolet absorber model UV-327: 0. 10 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.3 parts; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: Silicon carbide: 68 parts, oxidation Zirconium: 12 parts, silicon oxide: 18 parts, titanium dioxide: 4 parts, polyethylene wax: 1.6 parts, ammonium polyacrylate: 2.2 parts, polyvinyl alcohol: 0.36 parts, yttrium oxide: 0.18 parts, oleic acid: 3 parts, Commercially available light stabilizer model 622: 0.08 parts, Commercially available ultraviolet absorber model UV-327: 0.09 parts, Commercially available anti-yellowing agent model KT-023 or V78-P TDS: 0.24 parts.

[Claim 8] The manufacturing method of an optical fiber connector according to claim 4 or claim 5, characterized in that the ceramic powder is nano-alumina or nano-silicon oxide or nano-silicon carbide ceramics Or the ceramic powder is made of ceramic powder composed of the following raw materials in parts by weight: silicon carbide: 60~70 parts, zirconium oxide: 10~20 parts, silicon oxide: 15~25 parts, titanium dioxide: 4~ 6 parts, polyethylene wax: 1~2 parts, ammonium polyacrylate: 1~3 parts, polyvinyl alcohol: 0.3~0.5 parts, yttrium oxide: 0.1~0.3 parts, oleic acid: 2~4 parts, commercially available models are 622 light stabilizer: 0.05~0.15 parts, commercially available ultraviolet absorber of UV-327: 0.0 4~0.10 parts, commercially available anti-yellowing agent of KT-023 or V78-P TDS: 0.1~0.3 parts; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: silicon carbide: 60 parts, zirconium oxide: 10 parts, silicon oxide: 15 parts, titanium dioxide: 4 parts, polyethylene wax: 1 parts, ammonium polyacrylate: 1 part, polyvinyl alcohol: 0.3 parts, yttrium oxide: 0.1 parts, oleic acid: 2 parts, commercially available light stabilizer model 622: 0.05 parts, commercially available ultraviolet rays model UV-327 Absorbent: 0.04 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.1 parts; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: Silicon carbide: 65 parts , Zirconia: 15 parts, Silicon oxide: 20 parts, Titanium dioxide: 5 parts, Polyethylene wax: 1.5 parts, Ammonium polyacrylate: 2 parts, Polyvinyl alcohol: 0.4 parts, Yttrium oxide: 0.2 parts, Oleic acid: 3 parts, commercially available model 622 light stabilizer: 0.10 parts, commercially available model UV-327 Ultraviolet absorber: 0.07 parts, commercially available anti-yellowing agent of KT-023 or V78-P TDS: 0.2 parts; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: Silicon carbide: 70 parts, zirconium oxide: 20 parts, silicon oxide: 25 parts, titanium dioxide: 6 parts, polyethylene wax: 2 parts, ammonium polyacrylate: 3 parts, polyvinyl alcohol: 0.5 parts, yttrium oxide: 0.3 parts, oleic acid : 4 parts, commercially available light stabilizer model 622: 0.15 parts, commercially available ultraviolet absorber model UV-3 27: 0.10 parts, commercially available anti-yellowing agent KT-023 or V78-P TDS : 0.3 parts; or the ceramic is made of ceramic powder composed of the following raw materials in parts by weight: silicon carbide: 68 parts, zirconium oxide: 12 parts, silicon oxide: 18 parts, titanium dioxide: 4 parts, polyethylene wax : 1.6 parts, ammonium polyacrylate: 2.2 parts, polyvinyl alcohol: 0.36 parts, ethylene oxide: 0.18 parts, oleic acid: 3 parts, commercially available light stabilizer model 622: 0.08 parts, commercially available model UV-327 UV absorber: 0.09 parts, commercially available model KT-023 or V78-P TDS anti-yellowing agent: 0.24 parts.