CN218893586U - Sealing structure for preform tail handle and tail handle butt-joint wire drawing - Google Patents
Sealing structure for preform tail handle and tail handle butt-joint wire drawing Download PDFInfo
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- CN218893586U CN218893586U CN202121195164.6U CN202121195164U CN218893586U CN 218893586 U CN218893586 U CN 218893586U CN 202121195164 U CN202121195164 U CN 202121195164U CN 218893586 U CN218893586 U CN 218893586U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model provides a preform tail handle and a sealing structure suitable for butt joint wire drawing of the tail handle, which comprises a preform and the tail handle fixedly arranged at the coreless region end of the preform, wherein the diameter of the tail handle is 40mm, and the tail handle is of a solid structure; the device also comprises a quartz sleeve assembly, a sleeve pressing ring, a single-insert pressing ring and a quartz mux which are sequentially arranged from top to bottom; the quartz mux is sleeved on the outer side of the prefabricated rod, the quartz mux is arranged at the furnace mouth of the wire drawing furnace, and a shoulder for placing the sleeve compression ring and the single-insert compression ring is arranged on the inner side of the quartz mux; the sleeve pressing ring is positioned above the quartz mux and used for pressing the single-insert pressing ring; the quartz sleeve component is sleeved on the outer side of the joint of the preform rod and the tail handle, and is positioned above the sleeve compression ring; according to the utility model, the 40mm tail handle is fixedly arranged at the end of the coreless area of the preform, and the oxide is accumulated in the coreless area of the preform, so that the utilization of an effective part is not affected, and the pickling process can be omitted, thereby achieving the production without hydrofluoric acid and pollution.
Description
Technical Field
The utility model belongs to the technical field of optical fiber manufacturing, and particularly relates to a preform tail handle and a sealing structure suitable for butt-joint wire drawing of the tail handle.
Background
Optical fiber drawing refers to a process technique in which the diameter of an optical fiber preform is reduced in proportion under high temperature conditions according to certain requirements to meet the dimensions required for the subsequent production of optical cables.
In the optical fiber manufacturing industry at present, hoisting and drawing are performed after an optical fiber preform is in butt joint with a handle to form a main operation mode, and the main problems existing in the main stream optical fiber manufacturing field at present are as follows:
in the butt joint process of a preform and a handle, the end faces of the preform and the handle are required to be burnt by propane, oxide is attached to the surface of quartz during the burning, and the quartz is required to be used after being subjected to hydrofluoric acid pickling; the hydrofluoric acid is a pollutant, so that the environment is polluted, and the sewage is treated before acid discharge, so that the national emission standard is met, and pollution hazard is caused;
secondly, in the optical fiber perform wire drawing process, in order to ensure full utilization of the preform, the handle has a reducing area at the end stage of wire drawing, so that handle loss is caused, the single handle is limited in use times, the manufacturing cost is high, a large proportion is occupied in raw material cost of an optical fiber enterprise, the consumption of month can reach 10 ten thousand yuan, the consumption of hydrofluoric acid serving as raw material is large, and the manufacturing cost is also small.
Disclosure of Invention
In view of the above, the present utility model aims to provide a preform tail and a sealing structure suitable for butt-jointing and wire-drawing of the tail, so as to solve the above-mentioned problems.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a preform tail handle comprises a preform and a tail handle fixedly arranged at the coreless region end of the preform, wherein the diameter of the tail handle is 40mm, and the tail handle is of a solid structure.
The end of the tail handle is provided with a plurality of groups of hanging holes, and the tail handle is fixed on the chuck through pins for hanging and wire drawing.
The sealing structure suitable for drawing the tail handle of the preform rod comprises a quartz sleeve assembly, a sleeve pressing ring, a single-insert pressing ring and a quartz mux which are sequentially arranged from top to bottom;
the quartz mux is sleeved on the outer side of the prefabricated rod, the quartz mux is installed at the furnace mouth of the wire drawing furnace, a convex shoulder for placing the sleeve pressing ring and the single-insert pressing ring is arranged on the inner side of the quartz mux, and a sealing assembly is arranged between the convex shoulder and the single-insert pressing ring;
the sleeve pressing ring is positioned above the quartz mux and used for pressing the single-insert pressing ring;
the quartz sleeve component is sleeved on the outer side of the joint of the prefabricated rod and the tail handle, and is positioned above the sleeve compression ring.
Further, the quartz mux comprises a plug-in part, the plug-in part is plugged into a furnace mouth of the wire drawing furnace, the top end of the plug-in part is fixedly provided with a connecting part, the connecting part comprises a first boss, the bottom end of the first boss is fixedly connected with the top end of the plug-in part, the upper end face of the first boss is fixedly provided with a second boss, and the second boss is fixedly provided with a limiting part;
and a convex shoulder is formed at the joint of the second boss and the limiting part, and a sealing assembly is arranged between the convex shoulder and the single-inserted compression ring.
Furthermore, the inserting part, the connecting part and the limiting part are all of annular structures, and the inserting part, the connecting part and the limiting part are integrally formed;
the outer diameter of the first boss is larger than that of the plug-in part, the outer diameter of the second boss is larger than that of the first boss, and the outer diameter of the limiting part is correspondingly equal to that of the second boss;
the inner diameter of the plug-in connection part is correspondingly equal to the inner diameter of the connecting part, and the inner diameter of the limiting part is larger than the inner diameter of the connecting part.
Further, a plurality of groups of threading holes are formed in the side wall of the limiting part.
Further, the sealing component is quartz cotton, a fixing wire is fixedly arranged on the quartz cotton, and the fixing wire is inserted into the threading hole and extends to the outer side of the limiting part;
the quartz cotton is of an annular structure.
Further, the single-insert compression ring and the sleeve compression ring are of annular structures, the outer diameter of the single-insert compression ring is equal to the inner diameter of the limiting part correspondingly, and the top end face of the single-insert compression ring and the top end face of the limiting part are located on the same plane;
the sleeve pressing ring is arranged at the top end of the limiting part;
the inner diameters of the single-plug compression ring and the sleeve compression ring are correspondingly equal to the inner diameter of the plug-in part.
Further, the quartz sleeve assembly comprises a quartz sleeve and a sealing compression ring which are sequentially arranged from bottom to top;
the quartz sleeve comprises a cylindrical part, a through hole is formed in the center of one end, close to the sealing compression ring, of the cylindrical part, a conical hole communicated with the through hole is formed in the center of one end, far away from the sealing compression ring, of the cylindrical part, the aperture of an upper top hole of the conical hole is correspondingly equal to that of the through hole, and the aperture of a lower bottom hole of the conical hole is smaller than the inner diameter of the sleeve compression ring;
a boss III is arranged at the bottom end of the cylindrical part in an outward extending manner, the outer diameter of the boss III is correspondingly equal to the outer diameter of the sleeve pressing ring, and the boss III is arranged above the sleeve pressing ring;
a boss IV is arranged at the top end of the cylindrical part in an outward extending way;
the aperture of the inner hole of the sealing compression ring is correspondingly equal to the aperture of the through hole.
Further, the bore diameter of the inner hole of the sealing compression ring is 0.5mm larger than the diameter of the tail handle.
Compared with the prior art, the preform tail handle and the sealing structure suitable for the tail handle butt-joint wire drawing have the following beneficial effects:
(1) According to the preform tail handle and the sealing structure suitable for butt-joint wire drawing of the tail handle, the tail handle with the diameter of 40mm is fixedly arranged at the end of the coreless area of the preform, and oxides are accumulated in the coreless area of the preform, so that the utilization of an effective part is not affected, and the pickling process can be omitted, so that the production without hydrofluoric acid and zero pollution is achieved;
(2) The preform tail handle and the sealing structure suitable for the butt joint and wire drawing of the tail handle realize handle zero consumption, so that the production cost is greatly reduced;
(3) According to the preform tail handle and the sealing structure tail handle suitable for butt-joint wire drawing of the tail handle, two working procedures of connecting pipe and pickling are not needed, and part of labor force can be liberated by reducing the working procedures of connecting pipe and pickling, so that fine distribution management of personnel is realized;
(4) The preform tail handle and the sealing structure suitable for butt-joint wire drawing of the tail handle are convenient to operate and simple in structure, and through the cooperation of the quartz thin, the single-plug compression ring, the sleeve compression ring, the quartz sleeve component and the sealing component, the sealing reliability of the preform reducing area when entering the wire drawing furnace is ensured, the stable air flow in the wire drawing furnace is ensured, the influence of severe fluctuation of the wire diameter of a bare optical fiber on the production of the optical fiber is avoided, the oxidation of blow-by gas of the wire drawing furnace is prevented, and the production quality of the optical fiber is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a preform tail handle and a sealing structure suitable for tail handle butt-joint wiredrawing according to an embodiment of the present utility model;
FIG. 2 is a diagram showing a quartz mux, a single insert compression ring, a sleeve compression ring, a quartz sleeve assembly, and a quartz wool profile according to an embodiment of the present utility model;
FIG. 3 is a plan view of a preform and a tail shank according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a quartz mux, single insert compression ring, sleeve compression ring, quartz sleeve assembly according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a quartz sleeve assembly and a sealing pressure ring according to an embodiment of the utility model.
Reference numerals illustrate:
1-a preform; 2-a tail handle; 201-hanging holes; 3-quartz mux; 301-a plug-in part; 302-a connection; 303-a limiting part; 3031-threading hole; 4-single-insert compression ring; 5-sleeve compression rings; a 6-quartz sleeve assembly; 601-a quartz sleeve; 6011-cylindrical portion; 6012-boss three; 6013-boss four; 602-sealing a compression ring; 7-a wire drawing furnace; 8-quartz cotton; 801-fixing line.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 3, a preform tail comprises a preform 1 and a tail 2 fixedly arranged at the coreless region end of the preform 1, wherein the diameter of the tail 2 is 40mm, and the tail 2 is of a solid structure.
The end of the tail handle 2 is provided with a plurality of groups of hanging holes 201, and the tail handle 2 is fixed on a chuck through pins for hanging and wire drawing.
As shown in fig. 2, the sealing structure suitable for drawing the tail handle of the preform rod comprises a quartz sleeve assembly 6, a sleeve compression ring 5, a single-insert compression ring 4 and a quartz mux 3 which are sequentially arranged from top to bottom;
the quartz mux 3 is sleeved on the outer side of the prefabricated rod 1, the quartz mux 3 is arranged at the furnace mouth of the wire drawing furnace 7, a shoulder for placing the sleeve pressing ring 5 and the single-insert pressing ring 4 is arranged on the inner side of the quartz mux 3, and a sealing assembly is arranged between the shoulder and the single-insert pressing ring 4;
the sleeve pressing ring 5 is positioned above the quartz mux 3 and is used for pressing the single-insert pressing ring 4;
the quartz sleeve assembly 6 is sleeved on the outer side of the joint of the preform 1 and the tail handle 2, the quartz sleeve assembly 6 is located above the sleeve pressing ring 5, and the quartz cotton 8 and the single-plug pressing ring 4 are sequentially placed in the quartz mux 3 and are covered on the quartz mux 3 through the sleeve pressing ring 5 to be used for sealing the quartz mux 3.
As shown in fig. 4, the quartz mux 3 comprises a plug-in part 301, the plug-in part 301 is plugged into the furnace mouth of the wire drawing furnace 7, the top end of the plug-in part 301 is fixedly provided with a connecting part 302, the connecting part 302 comprises a boss one, the bottom end of the boss one is fixedly connected with the top end of the plug-in part 301, the upper end surface of the boss one is fixedly provided with a boss two, and the boss two is fixedly provided with a limiting part 303;
a convex shoulder is formed at the joint of the second boss and the limiting part 303, and a sealing component is arranged between the convex shoulder and the single-insert compression ring 4.
The inserting part 301, the connecting part 302 and the limiting part 303 are all of annular structures, and the inserting part 301, the connecting part 302 and the limiting part 303 are integrally formed;
the outer diameter of the first boss is larger than that of the plug-in part 301, the outer diameter of the second boss is larger than that of the first boss, and the outer diameter of the limiting part 303 is correspondingly equal to that of the second boss;
the inner diameter of the plugging portion 301 is equal to the inner diameter of the connecting portion 302, and the inner diameter of the limiting portion 303 is larger than the inner diameter of the connecting portion 302.
A plurality of groups of threading holes 3031 are arranged on the side wall of the limiting part 303.
The sealing component is quartz cotton 8, a fixing wire 801 is fixedly arranged on the quartz cotton 8, and the fixing wire 801 is inserted into the threading hole 3031 and extends to the outer side of the limiting part 303;
the quartz wool 8 is of an annular structure, the fixing wire 801 is fixedly arranged on the outer side wall of the quartz wool 8, the fixing wire 801 passes through the threading hole 3031 to be fixed on the limiting part 303, and the quartz wool 8 is arranged to seal the inside of the quartz mux 3, so that the sealing effect is improved.
The single-insert compression ring 4 and the sleeve compression ring 5 are of annular structures, the outer diameter of the single-insert compression ring 4 is equal to the inner diameter of the limiting part 303 correspondingly, and the top end face of the single-insert compression ring 4 and the top end face of the limiting part 303 are located on the same plane;
the sleeve pressing ring 5 is arranged at the top end of the limiting part 303;
the inner diameters of the single-insert compression ring 4 and the sleeve compression ring 5 are equal to the inner diameter of the insertion part 301.
As shown in fig. 5, the quartz sleeve assembly 6 comprises a quartz sleeve 601 and a sealing compression ring 602 which are arranged in sequence from bottom to top;
the quartz sleeve 601 comprises a cylindrical part 6011, a through hole is formed in the center of one end, close to the sealing compression ring 602, of the cylindrical part 6011, a conical hole communicated with the through hole is formed in the center of one end, far away from the sealing compression ring 602, of the cylindrical part 6011, the aperture of an upper top hole of the conical hole is equal to that of the through hole correspondingly, and the aperture of a lower bottom hole of the conical hole is smaller than the inner diameter of the sleeve compression ring 5;
a boss III 6012 is arranged at the bottom end of the cylindrical part 6011 in an outward extending manner, the outer diameter of the boss III 6012 is correspondingly equal to the outer diameter of the sleeve pressing ring 5, and the boss III 6012 is arranged above the sleeve pressing ring 5;
a boss IV 6013 is arranged at the top end of the cylindrical part 6011 in an outward extending manner, and an operator can conveniently operate the quartz sleeve 601 by arranging the boss IV 6013;
the aperture of the inner hole of the sealing compression ring 602 is correspondingly equal to the aperture of the through hole; and placing the quartz sleeve 601 at the joint of the preform 1 and the tail handle 2, and placing the sealing compression ring 602 above the quartz sleeve 601 to finish the sealing of the joint of the preform 1 and the tail handle 2.
The bore diameter of the sealing compression ring 602 is 0.5mm larger than the diameter of the tail handle 2.
When the scheme is implemented, during rod loading operation of the preform 1, firstly, a single-plug-in type quartz mux 3 is placed at the intersection position of the wire drawing furnace 7, quartz cotton 8 is placed on a shoulder formed on the inner side of the quartz mux 3, the quartz cotton 8 is pressed and fixed by using a single-plug-in pressing ring 4, and then a sleeve pressing ring 5 is placed above the plug-in type quartz mux 3, so that the furnace mouth of the wire drawing furnace 7 is sealed;
placing a quartz sleeve 601 at the joint of the preform 1 and the tail handle 2, and placing a sealing compression ring 602 above the quartz sleeve 601 to finish the sealing of the joint of the preform 1 and the tail handle 2;
when the normal wire drawing is finished, the bottom of the quartz sleeve 601 falls on the sleeve pressing ring 5, all parts form a sealing system, the sealing at the wire drawing ending stage is completed, the design of the quartz sleeve 601 cannot cause the air current turbulence phenomenon formed by the increase of the space of the wire drawing furnace 7, and the wire drawing stability at the ending stage is ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. Sealing structure suitable for prefabricated stick tail handle butt joint wire drawing, its characterized in that: the device comprises a quartz sleeve assembly (6), a sleeve pressing ring (5), a single-insert pressing ring (4) and a quartz mux (3) which are sequentially arranged from top to bottom;
the quartz mux (3) is sleeved on the outer side of the prefabricated rod (1), the quartz mux (3) is arranged at the furnace mouth of the wire drawing furnace (7), a shoulder for placing the sleeve pressing ring (5) and the single-insert pressing ring (4) is arranged on the inner side of the quartz mux (3), and a sealing assembly is arranged between the shoulder and the single-insert pressing ring (4);
the sleeve pressing ring (5) is positioned above the quartz mux (3) and is used for pressing the single-insert pressing ring (4);
the quartz sleeve component (6) is sleeved on the outer side of the joint of the preform (1) and the tail handle (2), and the quartz sleeve component (6) is positioned above the sleeve compression ring (5).
2. The sealing structure suitable for butt-joint wiredrawing of preform tail handles according to claim 1, wherein: the quartz mux (3) comprises a plug-in part (301), the plug-in part (301) is plugged into a furnace mouth of the wire drawing furnace (7), a connecting part (302) is fixedly arranged at the top end of the plug-in part (301), the connecting part (302) comprises a boss I, the bottom end of the boss I is fixedly connected with the top end of the plug-in part (301), a boss II is fixedly arranged on the upper end face of the boss I, and a limiting part (303) is fixedly arranged on the boss II;
and a convex shoulder is formed at the joint of the second boss and the limiting part (303), and a sealing assembly is arranged between the convex shoulder and the single-insert compression ring (4).
3. The sealing structure suitable for butt-joint wiredrawing of preform tail handles according to claim 2, wherein: the inserting part (301), the connecting part (302) and the limiting part (303) are all of annular structures, and the inserting part (301), the connecting part (302) and the limiting part (303) are integrally formed;
the outer diameter of the boss I is larger than that of the plug-in part (301), the outer diameter of the boss II is larger than that of the boss I, and the outer diameter of the limiting part (303) is correspondingly equal to that of the boss II;
the inner diameter of the plug-in part (301) is correspondingly equal to the inner diameter of the connecting part (302), and the inner diameter of the limiting part (303) is larger than the inner diameter of the connecting part (302).
4. A sealing structure suitable for butt drawing of preform stems according to claim 3, characterized in that: the side wall of the limiting part (303) is provided with a plurality of groups of threading holes (3031).
5. The sealing structure suitable for butt-joint wiredrawing of a preform tail handle according to claim 4, wherein: the sealing component is quartz cotton (8), a fixing wire (801) is fixedly arranged on the quartz cotton (8), and the fixing wire (801) is inserted into the threading hole (3031) and extends to the outer side of the limiting part (303);
the quartz wool (8) is of an annular structure.
6. The sealing structure suitable for butt-joint wiredrawing of preform tail handles according to claim 2, wherein: the single-insert compression ring (4) and the sleeve compression ring (5) are of annular structures, the outer diameter of the single-insert compression ring (4) is equal to the inner diameter of the limiting part (303), and the top end face of the single-insert compression ring (4) and the top end face of the limiting part (303) are located on the same plane;
the sleeve pressing ring (5) is arranged at the top end of the limiting part (303);
the inner diameters of the single-plug compression ring (4) and the sleeve compression ring (5) are correspondingly equal to the inner diameter of the plug-in connection part (301).
7. The sealing structure suitable for butt-joint wiredrawing of preform tail handles according to claim 1, wherein: the quartz sleeve assembly (6) comprises a quartz sleeve (601) and a sealing compression ring (602) which are sequentially arranged from bottom to top;
the quartz sleeve (601) comprises a cylindrical part (6011), a through hole is formed in the center of one end, close to the sealing compression ring (602), of the cylindrical part (6011), a conical hole communicated with the through hole is formed in the center of one end, far away from the sealing compression ring (602), of the cylindrical part (6011), the aperture of an upper top hole of the conical hole is equal to that of the through hole correspondingly, and the aperture of a lower bottom hole of the conical hole is smaller than the inner diameter of the sleeve compression ring (5);
a boss III (6012) is arranged at the bottom end of the cylindrical part (6011) in an outward extending mode, the outer diameter of the boss III (6012) is correspondingly equal to the outer diameter of the sleeve pressing ring (5), and the boss III (6012) is arranged above the sleeve pressing ring (5);
a boss IV (6013) is arranged at the top end of the cylindrical part (6011) in an outward extending way;
the aperture of the inner hole of the sealing compression ring (602) is correspondingly equal to the aperture of the through hole.
8. The sealing structure suitable for butt-joint wiredrawing of a preform tail handle according to claim 7, wherein: the bore diameter of the sealing compression ring (602) is 0.5mm larger than the diameter of the tail handle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121195164.6U CN218893586U (en) | 2021-05-31 | 2021-05-31 | Sealing structure for preform tail handle and tail handle butt-joint wire drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121195164.6U CN218893586U (en) | 2021-05-31 | 2021-05-31 | Sealing structure for preform tail handle and tail handle butt-joint wire drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218893586U true CN218893586U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121195164.6U Active CN218893586U (en) | 2021-05-31 | 2021-05-31 | Sealing structure for preform tail handle and tail handle butt-joint wire drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218893586U (en) |
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2021
- 2021-05-31 CN CN202121195164.6U patent/CN218893586U/en active Active
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