CN109226302B - Preform processing method - Google Patents
Preform processing method Download PDFInfo
- Publication number
- CN109226302B CN109226302B CN201810981334.XA CN201810981334A CN109226302B CN 109226302 B CN109226302 B CN 109226302B CN 201810981334 A CN201810981334 A CN 201810981334A CN 109226302 B CN109226302 B CN 109226302B
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- Prior art keywords
- core rod
- rod
- extension
- fine
- extending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/18—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of limited length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/34—Guiding or supporting the material or mandrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tunnel Furnaces (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The application discloses a preform processing method, which comprises a core rod extending procedure, wherein the core rod extending procedure comprises a rough extending step and a fine extending step; in the rough extension step, the core rod is vertically arranged, the core rod is heated while rotating, and the core rod is stretched; in the fine rolling step, the roughly rolled core rod is horizontally arranged, the core rod is heated while being rotated, and the core rod is stretched; the mandrel bar extending process is performed by an extending apparatus. The mandrel extension process of the preform processing method can carry out rough extension and fine extension operations through once clamping of the extension equipment, and the processing efficiency is greatly improved.
Description
The application is a divisional application with application date of 2017, 27.02 and application number of 201710107985.1 and the name of 'preform processing method'.
Technical Field
The invention relates to the field of prefabricated rods, in particular to a processing method of a prefabricated rod.
Background
The production perform need produce the plug earlier, then produces the surrounding layer on the basis of plug, and wherein the plug need extend the operation in the course of working, specifically includes two steps of thick extension and smart extension, and among the prior art, thick extension is with the vertical setting of plug, through heating furnace heating stretch, and thick extension is accomplished the back, can carry out smart extension tensile operation again, can place the plug level this moment, then heats the plug through the blowtorch and stretches.
The mandrel needs to be taken out from the rough extension equipment after the rough extension is finished in the prior art, then the mandrel is transported to the fine extension equipment, the mandrel is clamped on the fine extension equipment again, the machining mode is low in efficiency, the mandrel is easily influenced in the processes of twice clamping and transporting, and hidden dangers may exist in the quality of the mandrel.
Disclosure of Invention
The invention provides a preform rod processing method aiming at the problems, which can carry out rough rolling and fine rolling operation on a core rod with high efficiency.
The technical scheme adopted by the invention is as follows:
a preform processing method comprises a core rod extending procedure, wherein the core rod extending procedure comprises a rough extending step and a fine extending step;
in the rough extension step, the core rod is vertically arranged, the core rod is heated while rotating, and the core rod is stretched;
in the fine rolling step, the roughly rolled core rod is horizontally arranged, the core rod is heated while being rotated, and the core rod is stretched;
the mandrel bar extending process is performed by an extending apparatus including:
a frame;
the two turntables are rotatably arranged on the rack, the two turntables are oppositely arranged in parallel, and the corresponding side walls of the two turntables are provided with stretching rails;
the rotary table driving mechanism is used for driving the rotary table to rotate;
the two ends of each supporting beam are respectively arranged on the two stretching rails in a sliding mode, clamps are rotatably arranged on one opposite sides of the two supporting beams, a clamp driving mechanism for driving the corresponding clamp to rotate is arranged on at least one supporting beam, and the two clamps are used for respectively clamping auxiliary rods on the two sides of the core rod;
the sliding rod is arranged on the rack in a sliding mode, and one end of the sliding rod is provided with a rough extension heating element;
the sliding rod driving mechanism is used for driving the sliding rod to reciprocate, the sliding rod is driven to move towards one side of the core rod during the coarse delay operation, the coarse delay heating element is driven to be close to the vertically arranged core rod, and the sliding rod is driven to move towards one side far away from the core rod during the fine delay operation;
the automatic lifting rod is arranged on the rack and is positioned below the core rod, and the upper end of the automatic lifting rod is provided with the fine extension blast burner; during fine delay operation, the turntable rotates 90 degrees, the automatic lifting rod rises to drive the fine delay blowtorch to approach the horizontally arranged core rod;
and the supporting beam driving mechanism is used for driving the two supporting beams to be away from each other in a rough delay and a fine delay manner, so that the stretching operation of the mandrel is realized.
The working principle of the extension equipment is as follows: the auxiliary rods on the two sides of the core rod are respectively clamped on the two clamps, the rotary table driving mechanism drives the rotary table to rotate, so that the core rod is vertically arranged, the sliding rod driving mechanism drives the sliding rod driving mechanism to move to one side of the core rod, so as to drive the rough extension heating element to be close to the vertically arranged core rod, the clamps drive the core rod to rotate, meanwhile, the rough extension heating element works to heat the core rod, and the supporting beam driving mechanism works so as to enable the two supporting beams to be away from each other and carry out rough extension operation on the core; after the operation is accomplished to thick prolonging, the slide bar actuating mechanism drive slide bar is to keeping away from one side removal of plug, make thick prolong heating element and keep away from the plug (prevent that the carousel from rotating and the fine operation of delaying takes place to interfere), carousel actuating mechanism drive carousel rotates 90, make the plug level set up, the automatic rising pole rises, it is close to the plug that the level set up to drive the fine blowtorch of prolonging, anchor clamps drive the plug and rotate, the fine blowtorch work of prolonging simultaneously heats the plug, a supporting beam actuating mechanism work, make two supporting beam further keep away from each other, to the fine operation of delaying of carrying on of plug. The mandrel extension process of the preform processing method can carry out rough extension and fine extension operations through once clamping of the extension equipment, and the processing efficiency is greatly improved.
Alternatively, the turntable driving mechanism may be a conventional driving structure such as a motor.
Optionally, the frame includes a first upright, and the turntable is rotatably mounted at an upper end of the first upright.
Optionally, the frame includes a second upright, the second upright has a movable rail, and the sliding rod is slidably disposed on the movable rail.
Optionally, the sliding rod is provided with a rack, the sliding rod driving mechanism includes a gear and a gear driving motor for driving the gear to rotate, and the gear is engaged with the corresponding rack.
Through the cooperation of gear and rack, can accurate control slide bar's reciprocating motion.
Optionally, the number of the second upright column, the number of the sliding rod and the number of the sliding rod driving mechanisms are two, and the second upright column, the sliding rod and the sliding rod driving mechanisms are respectively located on two sides of the core rod.
Optionally, the rough-extension heating element is a rough-extension burner.
Optionally, the two rough-extension heating elements are a left heating furnace and a right heating furnace respectively, the two heating furnaces are arranged on the corresponding sliding rods respectively, during rough-extension operation, the two sliding rods move towards one side of the mandrel, and the left heating furnace and the right heating furnace are abutted against each other to form a complete heating furnace to sleeve the mandrel.
The complete heating furnace comprises left heating furnace and right heating furnace, and this kind of split type structure can be after the operation of delaying crudely is finished, with the heating furnace split into left heating furnace and right heating furnace to realize quick breaking away from, and before the operation of delaying crudely, can be quick combine into complete heating furnace with left heating furnace and right heating furnace.
Optionally, a positioning column is arranged on one side of the left heating furnace facing the right heating furnace, a positioning groove is arranged on one side of the right heating furnace facing the left heating furnace, and the positioning column is matched with the positioning groove.
The design of reference column and constant head tank for left side heating furnace and right heating furnace combine convenient location, and both combine more reliable and more stable.
Optionally, the support beam driving mechanism includes:
the screw rod is rotatably arranged on the screw rod;
the stepping motor is used for driving the lead screw to rotate;
the screw rod nut is slidably mounted on the stretching track, the screw rod nut and the stretching track are relatively fixed in the circumferential direction, the screw rod nut is provided with a threaded hole matched with the screw rod, and one end of the supporting beam is fixed with the corresponding screw rod nut.
The screw rod can be driven to rotate through the stepping motor, so that the screw rod nut and the corresponding supporting beam are controlled to move on the stretching track, and accurate stretching operation is achieved.
The method for processing the prefabricated rod further comprises the following operations: after the core rod extension process is finished, loose body particles are deposited on the outer surface of the core rod, then the prepared loose body is sintered, and finally the optical fiber preform is sintered.
The invention has the beneficial effects that: the mandrel extension process of the preform processing method can carry out rough extension and fine extension operations through once clamping of the extension equipment, and the processing efficiency is greatly improved.
Description of the drawings:
FIG. 1 is a schematic view of an extension apparatus in a rough extended state;
FIG. 2 is a schematic view of the stretching apparatus in a fine stretching state;
FIG. 3 is a schematic view of a support beam drive mechanism;
fig. 4 is a schematic view of a second upright and a slide bar.
The figures are numbered:
1. a frame; 2. a turntable; 3. a support beam; 4. stretching the rail; 5. a clamp; 6. a core rod; 7. a left heating furnace; 8. a right heating furnace; 9. a turntable driving mechanism; 10. a first upright post; 11. an automatic lifting rod; 12. a fine delay blowtorch; 13. a second upright post; 14. a gear drive motor; 15. a gear; 16. a slide bar; 17. a positioning column; 18. positioning a groove; 19. a stepping motor; 20. a screw rod; 21. a feed screw nut; 22. a movable track; 23. a rack.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
A preform processing method comprises a core rod extending procedure, wherein the core rod extending procedure comprises a rough extending step and a fine extending step;
in the rough extension step, the core rod is vertically arranged, the core rod is heated while rotating, and the core rod is stretched;
in the fine rolling step, the roughly rolled core rod is horizontally arranged, the core rod is heated while being rotated, and the core rod is stretched.
The method for processing the prefabricated rod further comprises the following operations: after the core rod extension process is finished, loose body particles are deposited on the outer surface of the core rod, then the prepared loose body is sintered, and finally the optical fiber preform is sintered.
The mandrel bar extension process of the preform processing method is performed by an extension apparatus, as shown in fig. 1 and 2, which includes:
a frame 1;
the two turntables 2 are rotatably arranged on the frame 1, the two turntables 2 are oppositely arranged in parallel, and the corresponding side walls of the two turntables 2 are provided with stretching rails 4;
the rotary table driving mechanism 9 is used for driving the rotary table 2 to rotate;
two supporting beams 3, two ends of each supporting beam 3 are respectively arranged on two stretching rails 4 in a sliding manner, clamps 5 are rotatably arranged on one opposite sides of the two supporting beams 3, a clamp driving mechanism for driving the corresponding clamp 5 to rotate is arranged on at least one supporting beam 3, and the two clamps 5 are used for respectively clamping auxiliary rods on two sides of a core rod 6;
the sliding rod 16 is arranged on the machine frame 1 in a sliding mode, and a rough extension heating element is installed at one end of the sliding rod 16;
the sliding rod driving mechanism is used for driving the sliding rod 16 to reciprocate, during coarse delay operation, the sliding rod 16 is driven to move towards one side of the core rod 6, the coarse delay heating element is driven to be close to the vertically arranged core rod 6, and during fine delay operation, the sliding rod 16 is driven to move towards one side far away from the core rod 6;
the automatic lifting rod 11 is arranged on the rack 1 and is positioned below the core rod 6, and the upper end of the automatic lifting rod 11 is provided with a fine extension blast burner 12; during fine delay operation, the turntable 2 rotates 90 degrees, the automatic lifting rod 11 rises to drive the fine delay blowtorch 12 to approach the core rod 6 which is horizontally arranged;
and the supporting beam driving mechanism is used for coarsely delaying and finely delaying and is used for driving the two supporting beams 3 to be away from each other so as to realize the stretching operation of the core rod 6.
The working principle of the extension equipment is as follows: the auxiliary rods on two sides of the core rod 6 are respectively clamped on the two clamps 5, the turntable driving mechanism 9 drives the turntable 2 to rotate, so that the core rod 6 is vertically arranged, the slide rod driving mechanism drives the slide rod driving mechanism to move to one side of the core rod 6 to drive the rough extension heating element to be close to the vertically arranged core rod 6, the clamps 5 drive the core rod 6 to rotate, meanwhile, the rough extension heating element works to heat the core rod 6, and the supporting beam driving mechanism works to enable the two supporting beams 3 to be far away from each other to perform rough extension operation on the core rod 6; after the operation is accomplished to thick prolonging, slide bar actuating mechanism drive slide bar 16 removes to the one side of keeping away from plug 6, make thick prolonging heating element and keep away from plug 6 (prevent that carousel 2 from rotating the time and the fine operation of delaying takes place to interfere), carousel actuating mechanism 9 drive carousel 2 rotates 90, make 6 levels of plug set up, automatic rising pole 11 rises, it is close to the plug 6 that the level set up to drive the fine blowtorch 12 of prolonging, anchor clamps 5 drive plug 6 and rotate, the fine blowtorch 12 work of prolonging simultaneously heats plug 6, a supporting beam actuating mechanism work, make two supporting beam 3 further keep away from each other, to the fine operation that prolongs of carrying on of plug 6. The mandrel extension process of the preform processing method can carry out rough extension and fine extension operations through once clamping of the extension equipment, and the processing efficiency is greatly improved.
In practical application, the clamp driving mechanism can be a conventional driving structure such as a motor.
In the present embodiment, the turntable driving mechanism 9 may be a conventional driving structure such as a motor.
In this embodiment, the frame 1 includes a first upright 10, and the turntable 2 is rotatably mounted on an upper end of the first upright 10.
As shown in fig. 4, in the present embodiment, the frame 1 includes a second upright 13, the second upright 13 has a movable rail 22, and the sliding rod 16 is slidably disposed on the movable rail 22. In the present embodiment, the sliding rod 16 has a rack 23, the sliding rod driving mechanism includes a gear 15 and a gear driving motor 14 for driving the gear 15 to rotate, and the gear 15 is engaged with the corresponding rack 23. The reciprocating movement of the slide rod 16 can be precisely controlled by the cooperation of the gear 15 and the rack 23.
In this embodiment, two second columns 13, two slide rods 16 and two slide rod driving mechanisms are provided, and are respectively located on both sides of the mandrel 6.
In this embodiment, the two rough-drawing heating elements are a left heating furnace 7 and a right heating furnace 8, the two heating furnaces are respectively arranged on corresponding sliding rods 16, during the rough-drawing operation, the two sliding rods 16 move towards one side of the mandrel 6, and the left heating furnace 8 and the right heating furnace 8 abut against each other to form a complete heating furnace, so as to sleeve the mandrel 6. The complete heating furnace comprises left heating furnace 7 and right heating furnace 8, and this kind of split type structure can be after the operation of delaying crudely, with heating furnace split into left heating furnace 7 and right heating furnace 8 to realize quick breaking away from, and before the operation of delaying crudely, can be quick combine into complete heating furnace with left heating furnace 7 and right heating furnace 8. In practical application, the rough-extension heating element can also be a rough-extension burner.
In this embodiment, a positioning column 17 is disposed on a side of the left heating furnace 7 facing the right heating furnace 8, a positioning groove 18 is disposed on a side of the right heating furnace 8 facing the left heating furnace 7, and the positioning column 17 is matched with the positioning groove 18. The design of the positioning column 17 and the positioning groove 18 facilitates the positioning when the left heating furnace 7 and the right heating furnace 8 are combined, and the combination of the two is more stable and reliable.
As shown in fig. 3, in the present embodiment, the support beam driving mechanism includes:
the screw rod 20 is rotatably arranged on the screw rod 20;
the stepping motor 19 is used for driving the lead screw to rotate;
and the lead screw nut 21 is slidably mounted on the stretching track 4, the lead screw nut 21 and the stretching track 4 are relatively fixed in the circumferential direction, the lead screw nut 21 is provided with a threaded hole matched with the lead screw 20, and one end of the supporting beam 3 is fixed with the corresponding lead screw nut 21.
The screw rod 20 can be driven to rotate by the stepping motor 19, so that the screw rod nut 21 and the corresponding support beam 3 are controlled to move on the stretching track 4, and accurate stretching operation is realized.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (1)
1. A preform processing method comprises a core rod extending procedure, and is characterized in that the core rod extending procedure comprises a rough extending step and a fine extending step;
in the rough extension step, the core rod is vertically arranged, the core rod is heated while rotating, and the core rod is stretched;
in the fine rolling step, the roughly rolled core rod is horizontally arranged, the core rod is heated while being rotated, and the core rod is stretched;
after the rough rolling step is finished, directly rotating the core rod by 90 degrees and then carrying out fine rolling;
the mandrel bar extending process is performed by an extending apparatus including:
a frame;
the two turntables are rotatably arranged on the rack, the two turntables are oppositely arranged in parallel, and the corresponding side walls of the two turntables are provided with stretching rails;
the rotary table driving mechanism is used for driving the rotary table to rotate;
the two ends of each supporting beam are respectively arranged on the two stretching rails in a sliding mode, clamps are rotatably arranged on one opposite sides of the two supporting beams, a clamp driving mechanism for driving the corresponding clamp to rotate is arranged on at least one supporting beam, and the two clamps are used for respectively clamping auxiliary rods on the two sides of the core rod;
the sliding rod is arranged on the rack in a sliding mode, and one end of the sliding rod is provided with a rough extension heating element;
the sliding rod driving mechanism is used for driving the sliding rod to reciprocate, the sliding rod is driven to move towards one side of the core rod during the coarse delay operation, the coarse delay heating element is driven to be close to the vertically arranged core rod, and the sliding rod is driven to move towards one side far away from the core rod during the fine delay operation;
the automatic lifting rod is arranged on the rack and is positioned below the core rod, and the upper end of the automatic lifting rod is provided with the fine extension blast burner; during fine delay operation, the turntable rotates 90 degrees, the automatic lifting rod rises to drive the fine delay blowtorch to approach the horizontally arranged core rod;
the supporting beam driving mechanism is used for driving the two supporting beams to be away from each other, so that the stretching operation of the mandrel is realized;
the rack comprises a first upright post, and the turntable is rotatably arranged at the upper end of the first upright post; the rack comprises a second upright post, the second upright post is provided with a movable track, and the sliding rod is arranged on the movable track in a sliding manner;
the support beam driving mechanism includes:
a screw rod;
the stepping motor is used for driving the screw rod to rotate;
the screw rod nut is slidably mounted on the stretching track, the screw rod nut and the stretching track are relatively fixed in the circumferential direction, the screw rod nut is provided with a threaded hole matched with the screw rod, and one end of the supporting beam is fixed with the corresponding screw rod nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981334.XA CN109226302B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107985.1A CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
| CN201810981334.XA CN109226302B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107985.1A Division CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109226302A CN109226302A (en) | 2019-01-18 |
| CN109226302B true CN109226302B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810981334.XA Active CN109226302B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201810982378.4A Active CN109226304B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201810981428.7A Active CN109226303B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201710107985.1A Active CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810982378.4A Active CN109226304B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201810981428.7A Active CN109226303B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201710107985.1A Active CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109226302B (en) * | 2017-02-27 | 2020-04-14 | 天津富通集团有限公司 | Preform processing method |
| CN112521000B (en) * | 2018-07-26 | 2022-06-10 | 杭州富通通信技术股份有限公司 | Fusion welding device for optical fiber preform and auxiliary rod |
| CN113480162B (en) * | 2019-07-29 | 2022-11-04 | 富通集团有限公司 | Prefabricated excellent processing equipment |
| CN113651526B (en) * | 2021-08-02 | 2023-02-10 | 富通集团（嘉善）通信技术有限公司 | Machining process of core rod |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2907731A1 (en) * | 1979-02-28 | 1980-09-04 | Siemens Ag | METHOD FOR PRODUCING A FIBERGLASS FIBER |
| US4304581A (en) * | 1980-08-07 | 1981-12-08 | Western Electric Co., Inc. | Lightguide preform fabrication |
| JP2673614B2 (en) * | 1991-07-19 | 1997-11-05 | 株式会社フジクラ | Automatic output device for optical fiber preform |
| JPH08175838A (en) * | 1994-12-26 | 1996-07-09 | Showa Electric Wire & Cable Co Ltd | Preform rod-drawing apparatus |
| SE511083C2 (en) * | 1995-12-06 | 1999-08-02 | Sumitomo Electric Industries | Method of extending glass preform |
| JP2000001328A (en) * | 1998-04-15 | 2000-01-07 | Fujikura Ltd | Production of optical fiber preform |
| KR100508707B1 (en) * | 2002-08-12 | 2005-08-17 | 엘에스전선 주식회사 | a manufacturing method and a manufacturing device by Outside Vapor Deposition |
| JP4076158B2 (en) * | 2003-09-30 | 2008-04-16 | 信越化学工業株式会社 | Optical fiber preform drawing method |
| KR100526534B1 (en) * | 2003-11-27 | 2005-11-08 | 삼성전자주식회사 | Method and apparatus for manufacturing optical fiber preforms |
| US8789393B2 (en) * | 2004-11-29 | 2014-07-29 | The Furukawa Electric Co., Ltd. | Optical fiber preform, method of manufacturing optical fiber preform, and method of manufacturing optical fiber |
| CN101560054B (en) * | 2009-05-25 | 2011-10-12 | 富通集团有限公司 | Method for shaping head of optical fiber preform |
| CN201645182U (en) * | 2010-03-19 | 2010-11-24 | 千禧之星珠宝股份有限公司 | Clamp |
| CN102206040B (en) * | 2011-03-04 | 2012-12-12 | 中天科技精密材料有限公司 | Horizontal extension device of optical fiber preform |
| DE102011108612A1 (en) * | 2011-07-27 | 2013-01-31 | Heraeus Quarzglas Gmbh & Co. Kg | Plasma deposition process for producing an optical preform with a cladding glass layer of fluorine-doped quartz glass |
| DE102011113756B4 (en) * | 2011-09-18 | 2020-12-31 | Mag Ias Gmbh | Method and device for finishing workpieces |
| CN203382647U (en) * | 2013-05-31 | 2014-01-08 | 常州玉宇电光器件有限公司 | Turnover type glass lathe |
| CN203558972U (en) * | 2013-11-11 | 2014-04-23 | 江苏亨通光电股份有限公司 | Device for stretching optical fiber preform |
| CN103922579B (en) * | 2014-04-17 | 2016-10-05 | 中天科技精密材料有限公司 | A kind of method manufacturing optical fiber prefabricating plug with Correction and Control based on the maintenance of base tube external diameter |
| CN105217951B (en) * | 2015-09-21 | 2017-11-17 | 长飞光纤光缆股份有限公司 | A kind of stretched vertically method and apparatus of preform |
| CN105347663B (en) * | 2015-11-30 | 2017-12-22 | 中天科技精密材料有限公司 | The extension method and its equipment of a kind of preform |
| CN105384334B (en) * | 2015-11-30 | 2018-10-12 | 中天科技精密材料有限公司 | A kind of large-scale optical fiber prefabricating stick manufacture blowtorch and its large-scale optical fiber prefabricating stick manufacturing method |
| CN108249752B (en) * | 2016-03-31 | 2020-07-03 | 杭州富通通信技术股份有限公司 | Method for manufacturing optical fiber |
| CN106365433B (en) * | 2016-08-25 | 2019-02-05 | 南京蓝泰交通设施有限责任公司 | A kind of preform precision extension numerically-controlled machine tool control method |
| CN109226302B (en) * | 2017-02-27 | 2020-04-14 | 天津富通集团有限公司 | Preform processing method |
-
2017
- 2017-02-27 CN CN201810981334.XA patent/CN109226302B/en active Active
- 2017-02-27 CN CN201810982378.4A patent/CN109226304B/en active Active
- 2017-02-27 CN CN201810981428.7A patent/CN109226303B/en active Active
- 2017-02-27 CN CN201710107985.1A patent/CN106881365B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109226304B (en) | 2020-04-10 |
| CN106881365B (en) | 2018-10-12 |
| CN109226303A (en) | 2019-01-18 |
| CN109226302A (en) | 2019-01-18 |
| CN109226303B (en) | 2020-04-14 |
| CN106881365A (en) | 2017-06-23 |
| CN109226304A (en) | 2019-01-18 |
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