JPS57111254A - Drawing of optical fiber - Google Patents

Drawing of optical fiber

Info

Publication number
JPS57111254A
JPS57111254A JP18696580A JP18696580A JPS57111254A JP S57111254 A JPS57111254 A JP S57111254A JP 18696580 A JP18696580 A JP 18696580A JP 18696580 A JP18696580 A JP 18696580A JP S57111254 A JPS57111254 A JP S57111254A
Authority
JP
Japan
Prior art keywords
preform
speed
feeding device
stationary
feeding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18696580A
Other languages
Japanese (ja)
Other versions
JPS6250419B2 (en
Inventor
Takao Kimura
Kozo Yoshimura
Hiroo Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP18696580A priority Critical patent/JPS57111254A/en
Publication of JPS57111254A publication Critical patent/JPS57111254A/en
Publication of JPS6250419B2 publication Critical patent/JPS6250419B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/0253—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02772—Fibres composed of different sorts of glass, e.g. glass optical fibres shaping the preform lower end or bulb, e.g. pre-gobbing, controlling draw bulb shape, or preform draw start-up procedures
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/44—Monotoring or regulating the preform feed rate
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/45—Monotoring or regulating the preform neck-down region with respect to position or shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To shorten the response time of the drawing speed of an optical fiber to the feeding speed of preform, and to reduce the amount of waste optical fiber, by quickly changing the position of the preform relative to the heating heater, thereby controlling the feeding speed of the preform. CONSTITUTION:The preform feeding device 11 is composed of the main feeding device 12 and the subsidiary feeding device 13. The main feeding device shifts the preform 2 at a stationary speed Vp, while the subsidiary feeding device 13 moves the preform 2 vertically at a speed more than several times the speed given by the main device 12. At the initial stage of drawing, the preform is fed at a speed higher than the stationary feeding speed Vp by operating the subsidiary feeding device 13. Corresponding to the above, the drawing speed with the winder is also accelerated, and the point of drawing X of the preform in the heater 3 is shifted by X1. When the production of the product becomes stationary state, the feeding speed of the preform is returned to the stationary level Vp using the main feeding device, and the point of drawing of the preform in the heater 3 is shifted to X2. By this procedure, the time necessary to get stationary product can be shortened, and the amount of waste optical fiber is reduced.
JP18696580A 1980-12-29 1980-12-29 Drawing of optical fiber Granted JPS57111254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18696580A JPS57111254A (en) 1980-12-29 1980-12-29 Drawing of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18696580A JPS57111254A (en) 1980-12-29 1980-12-29 Drawing of optical fiber

Publications (2)

Publication Number Publication Date
JPS57111254A true JPS57111254A (en) 1982-07-10
JPS6250419B2 JPS6250419B2 (en) 1987-10-24

Family

ID=16197819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18696580A Granted JPS57111254A (en) 1980-12-29 1980-12-29 Drawing of optical fiber

Country Status (1)

Country Link
JP (1) JPS57111254A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153137A (en) * 1985-12-27 1987-07-08 Sumitomo Electric Ind Ltd Wire drawing of optical fiber
JPS63117925A (en) * 1986-10-31 1988-05-21 Showa Electric Wire & Cable Co Ltd Production of optical fiber
JPS63265838A (en) * 1987-04-21 1988-11-02 Furukawa Electric Co Ltd:The Method for drawing optical fiber
JPH01282135A (en) * 1988-05-09 1989-11-14 Furukawa Electric Co Ltd:The Method for drawing optical fiber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153137A (en) * 1985-12-27 1987-07-08 Sumitomo Electric Ind Ltd Wire drawing of optical fiber
JPS63117925A (en) * 1986-10-31 1988-05-21 Showa Electric Wire & Cable Co Ltd Production of optical fiber
JPS63265838A (en) * 1987-04-21 1988-11-02 Furukawa Electric Co Ltd:The Method for drawing optical fiber
JP2555065B2 (en) * 1987-04-21 1996-11-20 古河電気工業株式会社 Optical fiber drawing method
JPH01282135A (en) * 1988-05-09 1989-11-14 Furukawa Electric Co Ltd:The Method for drawing optical fiber

Also Published As

Publication number Publication date
JPS6250419B2 (en) 1987-10-24

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