Optical fiber glass mother rod preparation equipment

By designing the external mold and the stabilizing frame, the problem of poor stability in the optical fiber glass master rod preparation equipment during the preparation process is solved, improving the yield and the convenience of the equipment. It is suitable for preparing optical fiber glass master rods of different diameters.

CN224118926UActive Publication Date: 2026-04-14ZHEJIANG FUXIN SOLAR ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FUXIN SOLAR ENERGY CO LTD
Filing Date
2025-03-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing optical fiber glass master rod preparation equipment suffers from poor stability during the preparation process, resulting in a reduced yield.

Method used

The device employs an outer mold and an inner mold design. The outer mold has internal threads, and the inner mold is easy to assemble and disassemble. A stabilizing frame is installed on the outer mold. The stabilizing frame has support legs and an adjustment cavity, and is equipped with pulleys and friction textures to ensure the stability of the equipment.

Benefits of technology

The equipment achieves stability during the fabrication process, improves the yield of glass master rods, and can fabricate optical fiber glass master rods with different cross-sectional diameters, making the equipment more convenient and efficient.

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Abstract

The utility model discloses optical fiber glass mother rod preparation equipment, and belongs to the technical field of glass mother rods, the technical scheme is characterized in that the optical fiber glass mother rod preparation equipment comprises an outer mold and further comprises an inner mold, the outer mold is cylindrical, an inner thread is arranged on the outer mold, an outer thread is arranged on the inner mold, and the inner mold is provided with an outer thread; the stability of the equipment can be guaranteed in the preparation working process of the glass mother rod, and the situation that the yield of the prepared glass mother rod is reduced due to equipment shaking is avoided.
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Description

Technical Field

[0001] This application belongs to the field of glass master rod technology, and in particular relates to an optical fiber glass master rod preparation device. Background Technology

[0002] The optical fiber preform (also known as the fiber optic mother rod) is the core raw material for manufacturing optical fibers. Its internal structure consists of a high-refractive-index core layer and a low-refractive-index cladding. By precisely controlling the material composition and geometry, efficient transmission of optical signals within the core is ensured. Typically ranging from tens to hundreds of millimeters in diameter, the mother rod is formed by high-temperature sintering of glass powder using vapor deposition processes (such as VAD axial deposition), followed by stretching to form the final optical fiber. It is a crucial fundamental material determining the transmission performance of optical fibers and is widely used in communication, sensing, and other fields.

[0003] The existing publication number CN205953837U discloses a pulling device for optical glass rods, including a softening crucible, a viscosity adjusting crucible, and a rod forming mold that are connected from top to bottom; a heating rod is provided in the heat-preserving furnace body outside the softening crucible, the viscosity adjusting crucible, and the rod forming mold; a rod traction device is provided below the rod forming mold; the cross-sectional area of ​​the cavity of the rod forming mold is smaller than the cross-sectional area of ​​the cavity of the softening crucible; the inner cavity surfaces of the softening crucible, the viscosity adjusting crucible, and the rod forming mold are continuous and smooth; and a feeding port is provided at the top of the softening crucible.

[0004] Although the above-mentioned drawing device can improve the product yield, the equipment has poor stability and is prone to shaking during the preparation process, which leads to a decrease in the yield of glass master rods. Utility Model Content

[0005] The purpose of this application is to address the aforementioned technical problems by providing an optical fiber glass master rod preparation device that can ensure the stability of the device during the glass master rod preparation process and avoid reducing the yield of the prepared glass master rod due to device shaking.

[0006] This application provides an optical fiber glass master rod preparation device, including an outer mold and an inner mold. The outer mold is cylindrical and has an internal thread, while the inner mold has an external thread.

[0007] When preparing a glass master rod, the inner mold is installed on the inner thread of the outer mold through the outer thread. The user puts the glass raw material with the prepared ratio into the heating and melting process, and then puts the glass molten material into the inner mold to form the shape. The inner mold is more convenient and efficient to disassemble and assemble in the outer mold.

[0008] Furthermore, the inner mold is cylindrical, and inner molds with different inner cavity diameters can be installed in the outer mold.

[0009] Since the inner mold is cylindrical, inner molds with different inner cavity diameters can be installed in the outer mold. When preparing optical fiber glass master rods with different cross-sectional diameters, the user can install inner molds with different inner cavity diameters in the outer mold, so that the equipment can prepare optical fiber glass master rods with different cross-sectional diameters.

[0010] Furthermore, a stabilizing frame is installed on the outer mold.

[0011] A stabilizing frame is installed on the outer mold. The stabilizing component is a block with a circular cross-section installed on the outer wall of the outer mold. Four feet are provided on the lower end face of the block with a circular cross-section. The stabilizing frame can ensure the stability of the equipment during the preparation of the glass master rod and avoid reducing the yield of the glass master rod due to equipment shaking.

[0012] Furthermore, the stabilizer is provided with an adjustment cavity, and there are several adjustment cavities. A rotating shaft is installed in each adjustment cavity, a rotating rod is installed on the rotating shaft, and a pulley is installed on the rotating rod.

[0013] When the user needs to move the preparation equipment, the user drives the rotating shaft to rotate, which in turn drives the rotating rod to rotate until the rotating rod is perpendicular to the ground and then stops. At this time, the preparation equipment can slide on the ground by relying on the pulley, making it more convenient, efficient and labor-saving for the user to move the preparation equipment.

[0014] Furthermore, the surface of the stabilizer is provided with a limit groove, the limit groove is square, a telescopic rod is installed on the rotating shaft, and a rotating block is installed on the output end of the telescopic rod, the rotating block having a square cross-section.

[0015] When the user needs to drive the rotating shaft to rotate, the user pulls out the telescopic rod, causing the rotating plate at the output end of the telescopic rod to disengage from the limiting groove. At this time, the user can rotate the rotating block. After completing the rotation adjustment, the user presses down on the rotating block to compress the output end of the telescopic rod and return the rotating block to the limiting groove. The limiting groove and the rotating block both have square cross sections, which prevents the rotating block from rotating when inserted into the limiting groove, thus providing a limit for the rotating shaft and improving the positional stability of the rotating rod when the pulley is working.

[0016] Furthermore, the bottom of the stabilizer is provided with friction texture.

[0017] The bottom of the stabilizer is provided with friction texture, which makes the position of the stabilizer more stable when the user is not using the pulley displacement preparation equipment, and makes the preparation equipment less prone to positional displacement.

[0018] The beneficial effects of this application are:

[0019] 1. When preparing optical fiber glass master rods with different cross-sectional diameters, users can install inner molds with different inner cavity diameters in the outer mold, so that the equipment can prepare optical fiber glass master rods with different cross-sectional diameters.

[0020] 2. The stabilizer can ensure the stability of the equipment during the preparation of the glass master rod, and avoid reducing the yield of the glass master rod due to equipment shaking;

[0021] 3. When the user needs to move the preparation equipment, the user drives the rotating shaft to rotate, which in turn drives the rotating rod to rotate until the rotating rod is perpendicular to the ground and then stops. At this time, the preparation equipment can slide on the ground by relying on the pulley, making it more convenient, efficient and labor-saving for the user to move the preparation equipment. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0023] Figure 2 This is a partial structural schematic diagram of the stabilizer frame of this application;

[0024] Figure 3 This application is Figure 1 Enlarged view of part A;

[0025] The attached figures are labeled as follows: 100, outer mold; 110, stabilizing frame; 111, adjusting cavity; 112, rotating shaft; 113, rotating rod; 114, pulley; 115, limiting groove; 116, telescopic rod; 117, rotating block; 118, friction texture; 200, inner mold. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0029] Example 1:

[0030] like Figure 1 As shown in the figure, this application provides an optical fiber glass master rod preparation device, including an outer mold 100 and an inner mold 200. The outer mold 100 is cylindrical and has an internal thread, while the inner mold 200 has an external thread.

[0031] When it is necessary to prepare a glass master rod, the inner mold 200 is installed on the inner thread of the outer mold 100 through the outer thread. The user puts the glass raw material with the prepared ratio into the heating and melting process, and then puts the glass melt into the inner mold 200 to form the glass. The inner mold 200 is installed and disassembled in the outer mold 100 in a more convenient and efficient manner.

[0032] Example 2:

[0033] like Figure 1 As shown, this application embodiment provides an optical fiber glass master rod preparation device. In addition to the above-mentioned technical features, the inner mold 200 is cylindrical, and the outer mold 100 can be equipped with inner molds 200 with different inner cavity diameters.

[0034] Since the inner mold 200 is cylindrical, and the outer mold 100 can be equipped with inner molds 200 of different inner cavity diameters, when the user prepares optical fiber glass master rods of different cross-sectional diameters, the user can install inner molds 200 of different inner cavity diameters in the outer mold 100, so that the equipment can prepare optical fiber glass master rods of different cross-sectional diameters.

[0035] Example 3:

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, this application embodiment provides an optical fiber glass master rod preparation device, which, in addition to the above-mentioned technical features, includes a stabilizing frame 110 mounted on the outer mold 100.

[0037] A stabilizing frame 110 is installed on the outer mold 100. The stabilizing component is a block with a circular cross-section installed on the outer wall of the outer mold 100. Four feet are provided on the lower end face of the block with the circular cross-section. The stabilizing frame 110 can ensure the stability of the equipment during the preparation of the glass master rod and avoid reducing the yield of the glass master rod due to equipment shaking.

[0038] Example 4:

[0039] like Figure 2, Figure 3 As shown, this application embodiment provides an optical fiber glass master rod preparation device. In addition to the above-mentioned technical features, the stabilizer 110 is provided with an adjustment cavity 111, and there are several adjustment cavities 111. A rotating shaft 112 is installed in the adjustment cavity 111, a rotating rod 113 is installed on the rotating shaft 112, and a pulley 114 is installed on the rotating rod 113.

[0040] When the user needs to move the preparation equipment, the user drives the rotating shaft 112 to rotate, which in turn drives the rotating rod 113 to rotate until the rotating rod 113 rotates to be perpendicular to the ground and then stops. At this time, the preparation equipment can slide on the ground by relying on the pulley 114, making it more convenient, efficient and labor-saving for the user to move the preparation equipment.

[0041] Example 5:

[0042] like Figure 2 As shown, this application embodiment provides an optical fiber glass master rod preparation device. In addition to the above-mentioned technical features, the surface of the stabilizer 110 is provided with a limiting groove 115, the limiting groove 115 is square, a telescopic rod 116 is installed on the rotating shaft 112, and a rotating block 117 is installed on the output end of the telescopic rod 116, the rotating block 117 has a square cross section.

[0043] When the user needs to drive the rotating shaft 112 to rotate, the user pulls out the telescopic rod 116, causing the rotating plate at the output end of the telescopic rod 116 to disengage from the limiting groove 115. At this time, the user can rotate the rotating block 117. After completing the rotation adjustment, the user presses the rotating block 117 to compress the output end of the telescopic rod 116 and return the rotating block 117 to the limiting groove 115. The limiting groove 115 and the rotating block 117 both have square cross sections, which ensures that the rotating block 117 will not rotate when inserted into the limiting groove 115, thus providing a limit for the rotating shaft 112 and improving the positional stability of the rotating rod 113 when the pulley 114 is working.

[0044] Example 6:

[0045] like Figure 3 As shown, this application embodiment provides an optical fiber glass master rod preparation device, which, in addition to the above-mentioned technical features, has friction texture 118 at the bottom of the stabilizer.

[0046] The bottom of the stabilizer is provided with friction texture 118, which makes the position of the stabilizer more stable when the user does not use the pulley 114 to move the preparation equipment, and makes the preparation equipment less likely to shift position.

[0047] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An optical fiber glass master rod fabrication device, comprising an outer mold (100), characterized in that... It also includes an inner mold (200), the outer mold (100) is cylindrical, the outer mold (100) is provided with an internal thread, and the inner mold (200) is provided with an external thread.

2. The optical fiber glass master rod preparation equipment according to claim 1, characterized in that, The inner mold (200) is cylindrical, and inner molds (200) with different inner cavity diameters can be installed in the outer mold (100).

3. The optical fiber glass master rod preparation equipment according to claim 2, characterized in that, A stabilizing frame (110) is installed on the outer mold (100).

4. The optical fiber glass master rod preparation equipment according to claim 3, characterized in that, The stabilizer (110) is provided with an adjustment cavity (111), and there are several adjustment cavities (111). A rotating shaft (112) is installed in the adjustment cavity (111), a rotating rod (113) is installed on the rotating shaft (112), and a pulley (114) is installed on the rotating rod (113).

5. The optical fiber glass master rod preparation equipment according to claim 4, characterized in that, The surface of the stabilizer (110) is provided with a limiting groove (115), the limiting groove (115) is square, a telescopic rod (116) is installed on the rotating shaft (112), and a rotating block (117) is installed on the output end of the telescopic rod (116), the rotating block (117) has a square cross section.

6. The optical fiber glass master rod preparation equipment according to claim 5, characterized in that, The bottom of the stabilizer (110) is provided with friction texture (118).

Citation Information

Patent Citations

  • Device of draing of optical glass bar

    CN205953837U