JPS61206642U - - Google Patents

Info

Publication number
JPS61206642U
JPS61206642U JP7302486U JP7302486U JPS61206642U JP S61206642 U JPS61206642 U JP S61206642U JP 7302486 U JP7302486 U JP 7302486U JP 7302486 U JP7302486 U JP 7302486U JP S61206642 U JPS61206642 U JP S61206642U
Authority
JP
Japan
Prior art keywords
optical fiber
coating
pressure
radius
nozzle
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.)
Pending
Application number
JP7302486U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP7302486U priority Critical patent/JPS61206642U/ja
Publication of JPS61206642U publication Critical patent/JPS61206642U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例の構成図、第２図は圧
力ダイス内の液状プラスチツク被覆材料の流れの
説明図、第３図は光フアイバの種々な引き通し速
度における加圧ダイス内の液状プラスチツク被覆
材料の圧力と被覆光フアイバ外径との関係を示す
曲線図である。 １……加圧ダイス、２……ノズル、３……光フ
アイバ、８……被覆光フアイバ、１２……加圧力
調整器、１３，１４，１５……被覆膜厚計測器、
１６……被覆膜厚設定器。 Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the flow of liquid plastic coating material in the pressure die, and Fig. 3 is an illustration of the flow of the liquid plastic coating material in the pressure die at various drawing speeds of the optical fiber. FIG. 3 is a curve diagram showing the relationship between the pressure of the plastic coating material and the outer diameter of the coated optical fiber. 1... Pressure die, 2... Nozzle, 3... Optical fiber, 8... Coated optical fiber, 12... Pressure force regulator, 13, 14, 15... Coating film thickness measuring device,
16...Coating film thickness setting device.

Claims (1)

【実用新案登録請求の範囲】 大気圧より高い圧力の液状プラスチツク被覆材
料が供給され、先端部のノズル中を光フアイバを
引き通して該光フアイバにプラスチツク被覆膜層
を形成する圧力ダイスと被覆された被覆光フアイ
バの被覆膜厚みを計測する計測器と、被覆膜厚設
定器と前記被覆膜厚計測器と前記被覆膜厚設定器
との出力差により前記圧力ダイスに供給される液
状プラスチツク被覆材料の圧力を調整する加圧力
調整器とよりなる光フアイバの被覆装置において
、前記ノズル半径がＲ２、ノズル長さがｌ１なる
圧力ダイスの場合、被覆材料の粘度をη、光フア
イバの線引き速度をＶ、前記被覆材料への加圧力
をＰとし、被覆前の半径がＲ１なる光フアイバに
被覆膜層を形成し被覆膜層を含む被覆光フアイバ
の半径をＲ３としたとき、該被覆光フアイバの半
径Ｒ３が なる関係式を満足するべく線引き速度の変化に対
応して前記被覆材料への加圧力を調整する加圧力
調整器を備えたことを特徴とする光フアイバの被
覆装置。[Claims for Utility Model Registration] A pressure die and coating to which a liquid plastic coating material at a pressure higher than atmospheric pressure is supplied and an optical fiber is passed through a nozzle at its tip to form a plastic coating layer on the optical fiber. A measuring device for measuring the coating thickness of the coated optical fiber is supplied to the pressure die based on the output difference between the coating thickness setting device, the coating thickness measuring device, and the coating thickness setting device. In an optical fiber coating device comprising a pressure regulator for adjusting the pressure of a liquid plastic coating material, in the case of a pressure die with a nozzle radius of R 2 and a nozzle length of l 1 , the viscosity of the coating material is η, The drawing speed of the optical fiber is V, the pressure applied to the coating material is P, a coating layer is formed on the optical fiber whose radius before coating is R1 , and the radius of the coated optical fiber including the coating layer is R. 3 , the radius R of the coated optical fiber is R= 3 . Optical fiber coating equipment.
JP7302486U 1986-05-15 1986-05-15 Pending JPS61206642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7302486U JPS61206642U (en) 1986-05-15 1986-05-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7302486U JPS61206642U (en) 1986-05-15 1986-05-15

Publications (1)

Publication Number Publication Date
JPS61206642U true JPS61206642U (en) 1986-12-27

Family

ID=30611996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7302486U Pending JPS61206642U (en) 1986-05-15 1986-05-15

Country Status (1)

Country Link
JP (1) JPS61206642U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115241A (en) * 1977-03-18 1978-10-07 Hitachi Ltd Covering method of optical fiber
JPS577844A (en) * 1980-06-16 1982-01-16 Nippon Telegr & Teleph Corp <Ntt> Coating method for optical fiber and coating vessel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115241A (en) * 1977-03-18 1978-10-07 Hitachi Ltd Covering method of optical fiber
JPS577844A (en) * 1980-06-16 1982-01-16 Nippon Telegr & Teleph Corp <Ntt> Coating method for optical fiber and coating vessel

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