Bare optical fiber cooling gas injection and extraction device in optical fiber production process

Abstract

The utility model discloses a bare optical fiber cooling gas injection and extraction device in an optical fiber production process, which comprises a cooling pipe and an optical fiber body arranged in the cooling pipe. According to the utility model, helium is input into the gas injection cavity through the input pipe by the first pump machine and then is injected into the cooling pipe through the first pipe body, airflow is blown to the cooling pipe and then is diffused to the inner periphery, so that the impact force of the airflow is reduced, and then the airflow slowly contacts the optical fiber body and cools the optical fiber body; therefore, the impact of the airflow on the optical fiber body is reduced. According to the utility model, the helium is conveyed into the helium collection equipment by the second pump through the second pipe body, the helium is recovered, the purpose of saving resources is achieved, the helium enters the second pipe body along the inner wall of the cooling pipe while being sucked, the impact on the optical fiber body can be reduced, and the service life of the optical fiber body is prolonged. The purpose of protecting the optical fiber body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber production, in particular to a bare optical fiber cooling gas injection and extraction device in the optical fiber production process. Background Art

[0002] In the production process of optical fiber, the preform rod is placed in the electromagnetic induction furnace of the drawing device. After melting and becoming fluid, it passes through a series of production equipment according to the production process. The bare fiber is subjected to insulation, cooling, coating, curing device, and diameter measurement. It is then wound into the fiber receiving barrel by the wire taking-up machine. After the bare optical fiber leaves the induction furnace, the temperature is relatively high and inert gas helium needs to be injected to increase the cooling effect.

[0003] The injection and extraction of helium will have a greater impact on the optical fiber near the helium injection and extraction points, causing greater physical vibration of the optical fiber, affecting the stability of optical fiber production and even causing it to be scrapped. Utility Model Content

[0004] In view of this, the utility model aims to provide a bare optical fiber cooling gas injection and extraction device during the optical fiber production process, in order to solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A bare optical fiber cooling gas injection and extraction device in an optical fiber production process comprises a cooling tube and an optical fiber body, wherein the optical fiber body is arranged inside the cooling tube, and a first buffer component for mitigating the impact of injected airflow is installed at one end of the cooling tube;

[0007] The other end of the cooling tube is provided with a second buffer assembly for mitigating the impact of the suction airflow, and the two ends of the optical fiber body respectively penetrate the first buffer assembly and the second buffer assembly;

[0008] One end of the first buffer component away from the cooling tube is connected to a gas injection component for injecting helium;

[0009] One end of the second buffer component away from the cooling tube is connected to a suction component for sucking out helium;

[0010] Opening and closing components for controlling the flow of helium are installed on both sides of the cooling tube. One end of the opening and closing component slidably extends into the interior of the cooling tube and slidably fits with one end of the first buffer component and the second buffer component respectively.

[0011] Furthermore, the first buffer assembly includes a first shell, which is installed at one end of the cooling tube, one end of the optical fiber body passes through the first shell and extends to the outside of the first shell, and a first partition is installed inside the first shell and on both sides of the optical fiber body.

[0012] Furthermore, an air injection cavity is formed between the outer side of the first partition and the first shell, a first tube body is connected to the inside of the cooling tube on one side of the first shell, and one end of the first tube body is connected to the inside of the air injection cavity.

[0013] Furthermore, the first tube body is L-shaped, and one end of the first tube body away from the gas injection cavity is close to the inner wall of the cooling tube and fits with one end of the opening and closing component.

[0014] Furthermore, the gas injection assembly includes a first pump, the exhaust end of the first pump is connected to an input pipe, and one end of the input pipe away from the first pump is connected to the interior of the gas injection cavity.

[0015] Furthermore, the second buffer assembly includes a second shell, which is installed at one end of the cooling tube, one end of the optical fiber body passes through the second shell and extends to the outside of the second shell, and second partitions are installed inside the second shell and on both sides of the optical fiber body.

[0016] Furthermore, an air intake cavity is formed between the outer side of the second partition and the second shell, and a second tube body is connected to the inside of the cooling tube on both sides of the second shell, one end of the second tube body is connected to the inside of the air intake cavity, and the second tube body is L-shaped, and one end of the second tube body away from the air intake cavity is close to the inner wall of the cooling tube and fits with one end of the opening and closing component.

[0017] Furthermore, the suction assembly includes a second pump, the exhaust end of the second pump is connected to a suction pipe, and one end of the suction pipe away from the second pump is connected to the interior of the suction cavity.

[0018] Furthermore, the opening and closing assembly includes a cylinder, which is installed on both sides of the cooling pipe. The power output end of the cylinder slides and extends into the interior of the cooling pipe and is installed with a blocking block. The end of the blocking block away from the cylinder slides and fits with the first tube body and the second tube body respectively on one side close to the inner wall of the cooling pipe.

[0019] Compared with the prior art, the bare optical fiber cooling gas injection and extraction device in the optical fiber production process described in the utility model has the following beneficial effects:

[0020] 1) The utility model uses a first pump to input helium into the gas injection cavity through an input pipe, and then injects it into the cooling tube through a first tube body. After the airflow blows toward the cooling tube, it diffuses inwardly and all around, reducing the impact force of the airflow, and then slowly contacts the optical fiber body and cools it, which reduces the impact of the airflow on the optical fiber body.

[0021] 2) In the utility model, the helium is transported to the helium collection device through the second tube body by the second pump, so as to complete the recovery of the helium and achieve the purpose of saving resources. At the same time, when the helium is inhaled, it will also enter the interior of the second tube body along the inner wall of the cooling tube, which can also reduce the impact on the optical fiber body and play the purpose of protecting the optical fiber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the gas injection and extraction device according to an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the gas injection component part described in an embodiment of the utility model;

[0025] Figure 3 It is a schematic cross-sectional structure diagram of a gas injection and extraction device according to an embodiment of the utility model;

[0026] Figure 4 For the embodiment of the utility model Figure 3 Schematic diagram of part of the structure at A in the middle.

[0027] Description of reference numerals:

[0028] 1. Cooling tube; 2. Optical fiber body; 3. First shell; 4. First partition; 5. Air injection cavity; 6. First tube body; 7. First pump; 8. Input pipe; 9. Second shell; 10. Second partition; 11. Air suction cavity; 12. Second tube body; 13. Second pump; 14. Intake pipe; 15. Cylinder; 16. Block. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] like Figure 1-4 As shown: a bare optical fiber cooling gas injection and extraction device in the optical fiber production process, comprising a cooling tube 1 and an optical fiber body 2, the optical fiber body 2 is arranged inside the cooling tube 1, and a first buffer assembly for mitigating the impact of the injected gas flow is installed at one end of the cooling tube 1; the first buffer assembly comprises a first shell 3, the first shell 3 is installed at one end of the cooling tube 1, one end of the optical fiber body 2 penetrates the first shell 3 and extends to the outside of the first shell 3, and a first partition 4 is installed inside the first shell 3 and on both sides of the optical fiber body 2. An injection cavity 5 is formed between the outer side of the first partition 4 and the first shell 3, and a first tube body 6 is connected to one side of the first shell 3 and located inside the cooling tube 1, and one end of the first tube body 6 is connected to the inside of the injection cavity 5. The first tube body 6 is L-shaped, and the end of the first tube body 6 away from the injection cavity 5 is close to the inner wall of the cooling tube 1 and fits with one end of the opening and closing assembly. The first partition 4 is provided to isolate and protect the optical fiber body 2 inside the first shell 3.

[0034] The end of the first buffer assembly away from the cooling tube 1 is connected to a gas injection assembly for injecting helium; the gas injection assembly includes a first pump 7, the exhaust end of the first pump 7 is connected to an input pipe 8, and the end of the input pipe 8 away from the first pump 7 is connected to the inside of the gas injection cavity 5. By starting the first pump 7, the first pump 7 inputs helium into the gas injection cavity 5 through the input pipe 8, and then injects it into the cooling tube 1 through the first tube body 6. After the airflow blows to the cooling tube 1, it diffuses inwardly and around, reducing the impact of the airflow, and then slowly contacts the optical fiber body 2 and cools it, which will reduce the impact of the airflow on the optical fiber body 2.

[0035] The other end of the cooling tube 1 is equipped with a second buffer assembly for mitigating the impact of the suction airflow, and the two ends of the optical fiber body 2 respectively penetrate the first buffer assembly and the second buffer assembly; the second buffer assembly includes a second shell 9, which is installed at one end of the cooling tube 1, and one end of the optical fiber body 2 penetrates the second shell 9 and extends to the outside of the second shell 9, and a second partition 10 is installed inside the second shell 9 and on both sides of the optical fiber body 2. The second partition 10 is provided to isolate and protect the optical fiber body 2.

[0036] Specifically, an air suction cavity 11 is formed between the outer side of the second partition plate 10 and the second shell 9, and a second tube body 12 is connected to the two sides of the second shell 9 and located inside the cooling tube 1, and one end of the second tube body 12 is connected to the inside of the air suction cavity 11. The second tube body 12 is L-shaped, and the end of the second tube body 12 away from the air suction cavity 11 is close to the inner wall of the cooling tube 1 and fits with one end of the opening and closing component. The end of the second buffer component away from the cooling tube 1 is connected to a suction component for sucking out helium; the suction component includes a second pump 13, and the exhaust end of the second pump 13 is connected to a suction pipe 14, and the end of the suction pipe 14 away from the second pump 13 is connected to the inside of the air suction cavity 11. By starting the second pump 13, the second pump 13 generates suction, and the helium at one end of the cooling tube 1 will enter the interior of the suction chamber 11 through the second tube body 12, and then be transported to the helium collection device through the second tube body 12 by the second pump 13, so as to complete the recovery of the helium and achieve the purpose of saving resources. At the same time, when the helium is inhaled, it will also enter the interior of the second tube body 12 along the inner wall of the cooling tube 1, which can also reduce the impact on the optical fiber body 2 and play the purpose of protecting the optical fiber body 2.

[0037] In addition, both sides of the cooling tube 1 are equipped with opening and closing components for controlling the flow of helium, and one end of the opening and closing component slides and extends to the interior of the cooling tube 1 and slides and fits with one end of the first buffer component and the second buffer component respectively. The opening and closing component includes a cylinder 15, which is installed on both sides of the cooling tube 1. The power output end of the cylinder 15 slides and extends to the interior of the cooling tube 1 and is installed with a block 16. The end of the block 16 away from the cylinder 15 slides and fits with the first tube body 6 and the second tube body 12 close to the inner wall of the cooling tube 1. By starting the cylinder 15, the power output end of the cylinder 15 drives the block 16 to move. After the block 16 is fully matched with the first tube body 6 and the second tube body 12, the first tube body 6 and the second tube body 12 can be blocked. At the same time, by adjusting the position of the block 16, the injection and suction rates can be adjusted to cope with different cooling scenarios.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bare optical fiber cooling gas injection and extraction device in an optical fiber production process, comprising a cooling tube (1) and an optical fiber body (2), wherein the optical fiber body (2) is arranged inside the cooling tube (1), and is characterized in that: A first buffer component for mitigating the impact of injected airflow is installed at one end of the cooling pipe (1); A second buffer component for mitigating the impact of the suction airflow is installed at the other end of the cooling tube (1), and two ends of the optical fiber body (2) respectively penetrate the first buffer component and the second buffer component; One end of the first buffer component away from the cooling tube (1) is connected to a gas injection component for injecting helium; One end of the second buffer component away from the cooling tube (1) is connected to a suction component for sucking out helium; Opening and closing components for controlling the flow of helium are installed on both sides of the cooling tube (1), and one end of the opening and closing component slidably extends into the interior of the cooling tube (1) and slidably fits with one end of the first buffer component and one end of the second buffer component respectively.

2. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 1, characterized in that: The first buffer assembly comprises a first shell (3), the first shell (3) being mounted on one end of the cooling tube (1), one end of the optical fiber body (2) passing through the first shell (3) and extending to the outside of the first shell (3), and first partitions (4) being mounted inside the first shell (3) and on both sides of the optical fiber body (2).

3. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 2, characterized in that: An air injection cavity (5) is formed between the outer side of the first partition plate (4) and the first shell (3); a first tube body (6) is located on one side of the first shell (3) and is connected to the interior of the cooling tube (1); one end of the first tube body (6) is connected to the interior of the air injection cavity (5).

4. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 3, characterized in that: The first tube body (6) is L-shaped, and one end of the first tube body (6) away from the gas injection cavity (5) is close to the inner wall of the cooling tube (1) and fits with one end of the opening and closing component.

5. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 4, characterized in that: The gas injection assembly comprises a first pump (7), the exhaust end of the first pump (7) is connected to an input pipe (8), and the end of the input pipe (8) away from the first pump (7) is connected to the interior of the gas injection chamber (5).

6. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 5, characterized in that: The second buffer assembly comprises a second shell (9), wherein the second shell (9) is installed at one end of the cooling tube (1), one end of the optical fiber body (2) passes through the second shell (9) and extends to the outside of the second shell (9), and second partitions (10) are installed inside the second shell (9) and on both sides of the optical fiber body (2).

7. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 6, characterized in that: An air intake cavity (11) is formed between the outer side of the second partition plate (10) and the second shell (9); a second tube body (12) is connected to the interior of the cooling tube (1) on both sides of the second shell (9); one end of the second tube body (12) is connected to the interior of the air intake cavity (11); the second tube body (12) is L-shaped; one end of the second tube body (12) away from the air intake cavity (11) is close to the inner wall of the cooling tube (1) and fits with one end of the opening and closing component.

8. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 7, characterized in that: The suction assembly comprises a second pump (13), the exhaust end of the second pump (13) is connected to a suction pipe (14), and the end of the suction pipe (14) away from the second pump (13) is connected to the interior of the suction chamber (11).

9. The device for injecting and extracting a cooling gas for a bare optical fiber in an optical fiber production process according to claim 8, characterized in that: The opening and closing assembly comprises a cylinder (15), wherein the cylinder (15) is mounted on both sides of the cooling pipe (1), wherein the power output end of the cylinder (15) slides and extends into the interior of the cooling pipe (1) and is mounted with a block (16), wherein one end of the block (16) away from the cylinder (15) slides and fits with one side of the first tube body (6) and the second tube body (12) close to the inner wall of the cooling pipe (1).

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