CN219239525U - Online wire drawing evacuating device of sleeve rod - Google Patents
Online wire drawing evacuating device of sleeve rod Download PDFInfo
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- CN219239525U CN219239525U CN202223098423.0U CN202223098423U CN219239525U CN 219239525 U CN219239525 U CN 219239525U CN 202223098423 U CN202223098423 U CN 202223098423U CN 219239525 U CN219239525 U CN 219239525U
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- vacuumizing
- penetrating hole
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- rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model relates to an on-line drawing and vacuumizing device for a sleeve rod, and belongs to the technical field of optical fiber preform drawing. The vacuumizing device comprises a vacuumizing body, wherein a rod penetrating hole is formed in the center of the vacuumizing body, and the rod penetrating hole is communicated with the inner cavity of the handle tube to form a wire drawing cavity; a core rod is arranged in the wire drawing cavity in a penetrating way; a top cover is arranged at the top end of the vacuumizing body in a rotating way; a sealing ring is arranged between the rod penetrating hole and the core rod, and the sealing ring is arranged at the top of the rod penetrating hole; the outer periphery of the vacuumizing body is provided with a sealing groove, a sealing sheet is arranged in the sealing groove, the outer edge of the sealing sheet is attached to the inner wall of the handle tube, and the outer edge of the sealing sheet is in an upward bending state; the vacuum pump is characterized in that a vacuum hole is formed in the vacuum body, the air extraction end of the vacuum hole is communicated with the rod penetrating hole, and the vacuum air outlet end is connected with the vacuum pump through a vacuum tube. The utility model has the advantages of this simple structure, the simple operation through the multiple seal of top cap, sealing washer and sealing washer, has improved the leakproofness in wire drawing chamber, has realized stable vacuum.
Description
Technical Field
The utility model relates to an on-line drawing and vacuumizing device for a sleeve rod, and belongs to the technical field of drawing of optical fiber preforms manufactured by a sleeve method.
Background
In the optical fiber preform manufacturing industry, due to the limitation of capacity supply of the domestic core rod preform, a production mode of manufacturing the core rod by using MCVD or PCVD method and outsourcing quartz sleeve assembly, heating by a wire drawing furnace and vacuumizing simultaneously, so that the core rod and the outer sleeve are fused and contracted on line to form a core rod preform (RIC rod) is gradually developed.
At present, the sealing effect of the joint of the vacuumizing device and the sleeve rod is poor, so that the unstable vacuum degree in the sleeve rod influences the wire drawing effect and quality.
Disclosure of Invention
The utility model aims to solve the technical problems of providing the on-line wire drawing and vacuumizing device for the sleeve rod, which aims at the prior art, has the advantages of simple structure, convenience in operation, improvement of the tightness of a wire drawing cavity and realization of stable vacuum degree.
The utility model solves the problems by adopting the following technical scheme: the on-line wire drawing and vacuumizing device for the sleeve rod is inserted into the tail part of the handle pipe and comprises a vacuumizing body, wherein a rod penetrating hole is formed in the center of the vacuumizing body and communicated with the inner cavity of the handle pipe to form a wire drawing cavity; a core rod is arranged in the wire drawing cavity in a penetrating way; a top cover is arranged at the top end of the vacuumizing body in a rotating way; a sealing ring is arranged between the rod penetrating hole and the core rod, and the sealing ring is arranged at the top of the rod penetrating hole; the outer periphery of the vacuumizing body is provided with a sealing groove, a sealing sheet is arranged in the sealing groove, the outer edge of the sealing sheet is attached to the inner wall of the handle tube, and the outer edge of the sealing sheet is in an upward bending state; the vacuum pump is opened, the vacuum in the wire drawing cavity is pumped out through the vacuum hole and the vacuum pipe, negative pressure is formed in the wire drawing cavity, and lateral pressure clung to the inner wall of the handle pipe is generated at the edge of the sealing piece.
The vacuumizing body comprises a first body and a second body, the first body is arranged at the top of the second body, the first body is inserted into the handle pipe, and the second body is arranged at the tail end of the handle pipe in a erecting mode, so that the second body is arranged outside the handle pipe; the first body center is provided with a first rod penetrating hole, the second body center is provided with a second rod penetrating hole, and the first rod penetrating hole corresponds to the second rod penetrating hole to form a rod penetrating hole.
The top cover is internally provided with a top block which is propped against the handle of the core rod.
The vacuumizing tube is provided with a one-way valve.
Compared with the prior art, the utility model has the advantages that: the on-line wire drawing vacuumizing device for the sleeve rod is simple in structure, convenient to operate, and stable vacuum degree is realized by multiple sealing of the top cover, the sealing ring and the sealing piece, so that the tightness of the wire drawing cavity is improved.
Drawings
FIG. 1 is a schematic working diagram of an on-line drawing and vacuumizing device for a bushing rod according to an embodiment of the utility model;
FIG. 2 is a schematic working diagram of an on-line drawing and vacuumizing device for a bushing rod according to an embodiment of the utility model;
in the drawing, a core rod 1, a handle tube 2, a vacuum-pumping device 3, a first body 3.1, a second body 3.2, a wire drawing cavity 3.3, a sealing ring 3.4, a top cover 3.5, a sealing sheet 3.6 and a vacuum-pumping hole 3.7.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 and 2, in this embodiment, a vacuum-pumping device 3 for on-line drawing of a bushing rod is inserted into the tail of a handle tube 2. The vacuumizing device 3 comprises a first body 3.1 and a second body 3.2, wherein the first body 3.1 is arranged at the top of the second body 3.2, the first body 3.1 is inserted into the tail of the handle tube 2, and the second body 3.2 is arranged at the tail end of the handle tube 2 in a building manner, so that the second body 3.2 is arranged outside the handle tube 2. The first body 3.1 center has first stick hole of wearing, and the second body 3.2 center has the second stick hole of wearing, and the diameter in first stick hole of wearing matches with the diameter in second stick hole of wearing, and both correspond and link up with handle pipe 2 inner chamber mutually, form wire drawing chamber 3.3. The core rod 1 is penetrated with a wire drawing cavity 3.3. The top cover 3.5 is rotatably arranged at the top end of the first body 3.1, a top block is arranged at the center of the top cover 3.5, and the top block is propped against the handle of the core rod 1. In the drawing process, the core rod 1 can be prevented from moving to cause the core-to-cladding ratio of the drawn optical fiber to change, and the drawing cavity 3.3 can be isolated from the outside. A sealing ring 3.4 is arranged between the core rod 1 and the first rod penetrating hole, and the sealing ring 3.4 is arranged at the top of the first rod penetrating hole to seal the first rod penetrating hole. Two annular sealing grooves which are arranged at intervals are formed in the periphery of the second body 3.2, and sealing sheets 3.6 are respectively arranged in the sealing grooves. When the first body is plugged into the inner cavity of the handle pipe, the outer edge of the sealing piece is clung to the inner wall of the handle pipe, and the outer edge of the sealing piece is in an upward bending state. The first body is also provided with a horizontally arranged vacuumizing hole 3.7, the vacuumizing end of the vacuumizing hole 3.7 is communicated with the first rod penetrating hole, and the other end of the vacuumizing hole is connected with a vacuum pump through a vacuumizing pipe. The vacuum pump is opened, air in the wire drawing cavity is pumped out through the vacuumizing hole and the vacuumizing pipe, so that negative pressure is formed in the wire drawing cavity, the negative pressure effect of the wire drawing cavity enables the edge of the sealing piece to generate lateral pressure clung to the inner wall of the handle pipe, and the sealing effect of the joint of the handle pipe and the first body is improved.
The vacuumizing tube is provided with a one-way valve to prevent the back flow of the pumped air.
The utility model has the advantages of this simple structure, the simple operation through the multiple seal of top cap, sealing washer and sealing washer, has improved the leakproofness in wire drawing chamber, has realized stable vacuum.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (4)
1. The utility model provides a sleeve pipe stick online wire drawing evacuating device, evacuating device inserts and locates handle pipe afterbody, its characterized in that: the vacuumizing device comprises a vacuumizing body, wherein a rod penetrating hole is formed in the center of the vacuumizing body, and the rod penetrating hole is communicated with the inner cavity of the handle tube to form a wire drawing cavity; a core rod is arranged in the wire drawing cavity in a penetrating way; a top cover is arranged at the top end of the vacuumizing body in a rotating way; a sealing ring is arranged between the rod penetrating hole and the core rod, and the sealing ring is arranged at the top of the rod penetrating hole; the outer periphery of the vacuumizing body is provided with a sealing groove, a sealing sheet is arranged in the sealing groove, the outer edge of the sealing sheet is attached to the inner wall of the handle tube, and the outer edge of the sealing sheet is in an upward bending state; the vacuum pump is opened, the vacuum in the wire drawing cavity is pumped out through the vacuum hole and the vacuum pipe, negative pressure is formed in the wire drawing cavity, and lateral pressure clung to the inner wall of the handle pipe is generated at the edge of the sealing piece.
2. The on-line drawing and vacuumizing device for bushing rods according to claim 1, wherein the device comprises the following components: the vacuumizing body comprises a first body and a second body, the first body is arranged at the top of the second body, the first body is inserted into the handle pipe, and the second body is arranged at the tail end of the handle pipe in a erecting mode, so that the second body is arranged outside the handle pipe; the first body center is provided with a first rod penetrating hole, the second body center is provided with a second rod penetrating hole, and the first rod penetrating hole corresponds to the second rod penetrating hole to form a rod penetrating hole.
3. The on-line drawing and vacuumizing device for bushing rods according to claim 1, wherein the device comprises the following components: the top cover is internally provided with a top block which is propped against the handle of the core rod.
4. The on-line drawing and vacuumizing device for bushing rods according to claim 1, wherein the device comprises the following components: the vacuumizing tube is provided with a one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223098423.0U CN219239525U (en) | 2022-11-22 | 2022-11-22 | Online wire drawing evacuating device of sleeve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223098423.0U CN219239525U (en) | 2022-11-22 | 2022-11-22 | Online wire drawing evacuating device of sleeve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239525U true CN219239525U (en) | 2023-06-23 |
Family
ID=86809518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223098423.0U Active CN219239525U (en) | 2022-11-22 | 2022-11-22 | Online wire drawing evacuating device of sleeve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219239525U (en) |
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2022
- 2022-11-22 CN CN202223098423.0U patent/CN219239525U/en active Active
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