JP2000001341A - Resin coating device for optical fiber - Google Patents
Resin coating device for optical fiberInfo
- Publication number
- JP2000001341A JP2000001341A JP10160753A JP16075398A JP2000001341A JP 2000001341 A JP2000001341 A JP 2000001341A JP 10160753 A JP10160753 A JP 10160753A JP 16075398 A JP16075398 A JP 16075398A JP 2000001341 A JP2000001341 A JP 2000001341A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- resin
- optical fiber
- die
- resin liquid
- 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
Links
Landscapes
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光ファイバに各種
の樹脂被覆層を形成するための光ファイバ用樹脂被覆装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber resin coating apparatus for forming various resin coating layers on an optical fiber.
【０００２】[0002]
【従来の技術】光ファイバ母材を溶融紡糸した光ファイ
バには、その保護や取扱い性等を目的として各種の樹脂
被覆が施される。例えば、図２に示す光ファイバ心線
は、ガラスファイバ２０の外周にシリコン樹脂からなる
一次被覆層２１及び二次被覆層２２を順次被覆し、更に
その外周にナイロン樹脂からなる最外層２３を形成して
構成されている。また、最近では、図３に示すように、
ガラスファイバ２０の外周にウレタンアクリレート系紫
外線硬化型樹脂からなる一次被覆層２７及び二次被覆層
２８を順次被覆してなるＵＶ素線２４に、ウレタンアク
リレート系紫外線硬化型樹脂もしくはヤング率の小さい
ウレタンアクリレート系紫外線硬化型樹脂からなる緩衝
層２５を介在させて最外層２３を形成した光ファイバ心
線も提案されている。特に、図３に示す光ファイバ心線
はコスト面てのメリットがある。また、図４に示すよう
に、ＵＶ素線２４の複数本を平面状に整列させた状態で
一括被覆した光ファイバテープ心線も知られており、各
ＵＶ素線２４には識別のために二次被覆層２８の外周に
着色層２６が形成されている。2. Description of the Related Art Various types of resin coatings are applied to an optical fiber obtained by melting and spinning an optical fiber preform for the purpose of protecting and handling the optical fiber. For example, in the optical fiber core shown in FIG. 2, the outer periphery of a glass fiber 20 is sequentially coated with a primary coating layer 21 and a secondary coating layer 22 made of a silicone resin, and further, an outermost layer 23 made of a nylon resin is formed on the outer periphery thereof. It is configured. Recently, as shown in FIG.
A UV wire 24 in which a primary coating layer 27 and a secondary coating layer 28 made of a urethane acrylate-based UV-curable resin are sequentially coated on the outer periphery of the glass fiber 20 is coated with a urethane acrylate-based UV-curable resin or urethane having a small Young's modulus. An optical fiber core having an outermost layer 23 formed with a buffer layer 25 made of an acrylate-based ultraviolet curable resin interposed has also been proposed. In particular, the optical fiber core shown in FIG. 3 has an advantage in cost. As shown in FIG. 4, an optical fiber ribbon coated with a plurality of UV wires 24 in a state of being aligned in a plane is also known. The coloring layer 26 is formed on the outer periphery of the secondary coating layer 28.
【０００３】上記したような樹脂被覆は、例えば図５に
示す被覆装置を用いて行われる。図示される被覆装置に
よれば、ボビン１に巻回してある光ファイバ素線２を繰
り出しプーリー３を介して連続的に送出して、被覆用ダ
イス４及び硬化装置５に順次通過させた後、キャプスタ
ン６を介してボビン７に巻き取ることにより、光ファイ
バ素線２には新たな被覆層が形成される。[0003] The resin coating as described above is performed using, for example, a coating apparatus shown in FIG. According to the illustrated coating apparatus, the optical fiber 2 wound around the bobbin 1 is fed out continuously through the pulley 3, and is sequentially passed through the coating die 4 and the curing apparatus 5. A new coating layer is formed on the optical fiber 2 by winding it around the bobbin 7 via the capstan 6.
【０００４】樹脂タンク８には被覆用樹脂のモノマー溶
液（以下、被覆樹脂液と呼ぶ）が貯蔵されており、この
被覆樹脂液は電磁弁９によりその供給量が制御されて管
路１０を通じて被覆用ダイス４に連続的に供給される。
この被覆樹脂液の被覆用ダイス４への供給は、例えば樹
脂タンク８内に高圧ガスを吹き込むことにより行われ
る。被覆用ダイス４は、その内部に光ファイバ素線２を
挿通させるとともに、光ファイバ素線２に向けて所定の
押し出し圧力（以下、樹脂圧と呼ぶ）で被覆樹脂液を押
し出すことで、光ファイバ素線２の外周面に所定の膜厚
で被覆樹脂液を塗工する。この樹脂圧の調整は、電磁弁
９の弁開度により行われる。硬化装置５は被覆樹脂液の
種類に応じて紫外線照射装置または加熱炉が選択され、
被覆用ダイス４により光ファイバ素線２に塗工された被
覆樹脂液を硬化させる。また、図示は省略するが、被覆
用ダイス４や硬化装置５の下流側には樹脂被覆後の光フ
ァイバ素線２の外径寸法（以下、被覆外径と呼ぶ）を測
定するための外径測定器が配置されており、その測定値
を基にして被覆外径を所定の範囲内に収まるように、被
覆用ダイス４の被覆樹脂液の樹脂圧や光ファイバ素線２
の線引速度等を制御している。The resin tank 8 stores a monomer solution of a coating resin (hereinafter referred to as a coating resin liquid). The amount of the coating resin liquid is controlled by a solenoid valve 9 and the coating resin liquid is coated through a pipe 10. Is continuously supplied to the dies 4.
The supply of the coating resin liquid to the coating die 4 is performed, for example, by blowing a high-pressure gas into the resin tank 8. The coating die 4 allows the optical fiber 2 to pass therethrough and extrudes the coating resin liquid toward the optical fiber 2 at a predetermined extrusion pressure (hereinafter referred to as a resin pressure), thereby forming an optical fiber. A coating resin liquid is applied to the outer peripheral surface of the strand 2 with a predetermined thickness. The adjustment of the resin pressure is performed based on the valve opening of the solenoid valve 9. As the curing device 5, an ultraviolet irradiation device or a heating furnace is selected according to the type of the coating resin solution,
The coating resin liquid applied to the optical fiber 2 is cured by the coating die 4. Although not shown, an outer diameter for measuring the outer diameter of the optical fiber 2 after resin coating (hereinafter, referred to as coating outer diameter) is provided downstream of the coating die 4 and the curing device 5. A measuring device is disposed, and based on the measured value, the resin pressure of the coating resin liquid of the coating die 4 and the optical fiber 2 are adjusted so that the coating outer diameter falls within a predetermined range.
Is controlled.
【０００５】上記の樹脂被覆装置を用いて、例えば図３
に示す光ファイバ心線を作成する場合には、光ファイバ
素線２としてＵＶ素線２４を装着し、被覆用ダイス４に
より緩衝層２５となるシリコン系紫外線硬化型樹脂もし
くはヤング率の小さいウレタンアクリレート系紫外線硬
化型樹脂を塗工すればよい。また、図４に示す光ファイ
バテープ心線用の着色ＵＶ素線を作成する場合には、被
覆用ダイス４により着色層２６となる顔料を含んだモノ
マーを塗工すればよい。Using the above resin coating apparatus, for example, FIG.
When an optical fiber core wire shown in FIG. 1 is prepared, a UV wire 24 is mounted as the optical fiber wire 2 and a silicon-based ultraviolet curable resin or a urethane acrylate having a small Young's modulus which becomes the buffer layer 25 by the coating die 4. What is necessary is just to apply a system ultraviolet curing resin. In addition, when a colored UV element wire for an optical fiber ribbon shown in FIG. 4 is to be prepared, a monomer containing a pigment to be a colored layer 26 may be applied by the coating die 4.
【０００６】[0006]
【発明が解決しようとする課題】上記したような被覆装
置において、通常、被覆樹脂液は所定の粘度を維持する
ために樹脂タンク８内で温度調整されており、電磁弁９
を通り、管路１０を経て被覆用ダイス４へと送られる。
この時、電磁弁９は外径測定器による測定値を基に絶え
ず弁開度の調整を行っており、被覆条長が長くなると発
熱して内部を通過する被覆樹脂液の液温を上昇させてし
まう。例えば、図６は、図３に示す光ファイバ心線の緩
衝層２５用の樹脂として一般的なシリコン系の紫外線硬
化型樹脂の液温と粘度との関係を示すグラフであるが、
図示されるように、樹脂の液温が上昇するのに伴って粘
度は低くなり、図の例では常温に比べて４０℃では約半
分に、６０℃では約１／３に、８０℃では約１／４にま
で低下する。従って、被覆用ダイス４の樹脂圧は電磁弁
９により一定に維持されているものの、被覆樹脂液の液
温が上昇すると、その流動特性が変化して光ファイバ素
線２の被覆外径に大きな変動を与える。In the above-described coating apparatus, the temperature of the coating resin liquid is usually adjusted in the resin tank 8 in order to maintain a predetermined viscosity.
Through the pipe 10 to the coating die 4.
At this time, the solenoid valve 9 constantly adjusts the valve opening based on the value measured by the outer diameter measuring device. When the coating length becomes long, heat is generated and the temperature of the coating resin liquid passing through the inside increases. Would. For example, FIG. 6 is a graph showing the relationship between the liquid temperature and the viscosity of a general silicon-based ultraviolet curable resin as the resin for the buffer layer 25 of the optical fiber core shown in FIG.
As shown in the figure, the viscosity decreases as the liquid temperature of the resin increases. In the example shown in the figure, the viscosity is about half at 40 ° C., about 1/3 at 60 ° C., and about 1/3 at 80 ° C. It decreases to 1/4. Therefore, although the resin pressure of the coating die 4 is kept constant by the solenoid valve 9, when the temperature of the coating resin liquid rises, its flow characteristics change and the coating outer diameter of the optical fiber 2 increases. Give fluctuation.
【０００７】本発明はこのような状況に鑑みてなされた
ものであり、被覆外径の制御をより正確に行うことがで
きる光ファイバ用樹脂被覆装置を提供することを目的と
する。The present invention has been made in view of such a situation, and an object of the present invention is to provide an optical fiber resin coating apparatus capable of controlling the coating outer diameter more accurately.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の光ファイバ用樹脂被覆装置は、光ファイ
バの送り出し手段と、光ファイバの巻き取り手段と、被
覆樹脂液を貯蔵する樹脂タンクと、樹脂タンクから供給
される被覆樹脂液を光ファイバに塗工する被覆用ダイス
と、樹脂タンクと被覆用ダイスとを接続する管路に配置
されて、前記被覆用ダイスへの被覆樹脂液の供給量を制
御する電磁弁と、管路を一定温度に保つための冷却手段
と、光ファイバに塗工された被覆樹脂液を硬化させるた
めの硬化手段とを備えることを特徴とする。In order to achieve the above object, a resin coating apparatus for an optical fiber according to the present invention stores an optical fiber feeding means, an optical fiber winding means, and a coating resin liquid. A resin tank, a coating die for coating the optical fiber with a coating resin liquid supplied from the resin tank, and a coating resin disposed on a conduit connecting the resin tank and the coating die, and a coating resin for the coating die. It is characterized by comprising an electromagnetic valve for controlling the supply amount of the liquid, a cooling means for maintaining the pipe at a constant temperature, and a curing means for curing the coating resin liquid applied to the optical fiber.
【０００９】上記光ファイバ用樹脂被覆装置は、管路を
所定温度に保つための冷却手段を備えるために、電磁弁
が発熱しても、管路を通過する間に被覆樹脂液の液温を
所定の液温まで低下させ、常に一定の粘度の被覆樹脂液
を被覆用ダイスに供給することができ、被覆外径の変動
を効果的に抑えることができる。The above optical fiber resin coating apparatus is provided with a cooling means for keeping the pipe at a predetermined temperature. Therefore, even if the solenoid valve generates heat, the liquid temperature of the coating resin liquid is kept while passing through the pipe. By lowering the temperature to a predetermined liquid temperature, a coating resin liquid having a constant viscosity can always be supplied to the coating die, and fluctuations in the coating outer diameter can be effectively suppressed.
【００１０】[0010]
【発明の実施の形態】以下、本発明の光ファイバ用樹脂
被覆装置に関して詳細に説明する、本発明の光ファイバ
用樹脂被覆装置は、その主たる構成要素は例えば図２に
示したような従来の被覆装置と同様である。即ち、図１
に示すように、送り出し手段であるボビン１及び繰り出
しプーリー３と、被覆用ダイス４、硬化装置５、並びに
巻き取り手段であるキャプスタン６及びボビン７を備
え、更に被覆樹脂液を貯蔵する樹脂タンク８及び電磁弁
９、管路１０を備える。また、同様に外径測定器を備え
る。尚、これらの装置の詳細は図５を参照して説明した
通りであり、ここでは説明を省略する。そして、上記被
覆装置を用い、連続して送り出され、巻き取られる光フ
ァイバ素線２を、被覆用ダイス４、硬化装置５に順次通
過させることにより、光ファイバ素線２には新たな被覆
層が形成される。BEST MODE FOR CARRYING OUT THE INVENTION The resin coating apparatus for optical fibers of the present invention will be described in detail below. The resin coating apparatus for optical fibers of the present invention is mainly composed of a conventional component as shown in FIG. The same as the coating device. That is, FIG.
As shown in FIG. 1, a resin tank that includes a bobbin 1 and a feeding pulley 3 as a feeding unit, a coating die 4, a curing device 5, and a capstan 6 and a bobbin 7 as a winding unit, and further stores a coating resin liquid. 8, a solenoid valve 9, and a conduit 10. In addition, an outer diameter measuring device is similarly provided. The details of these devices are as described with reference to FIG. 5, and the description is omitted here. Then, the optical fiber 2 that is continuously fed out and wound up is passed through the coating die 4 and the curing device 5 sequentially using the above-mentioned coating device, so that a new coating layer is formed on the optical fiber 2. Is formed.
【００１１】本発明の光ファイバ用樹脂被覆装置は、電
磁弁９と被覆用ダイス４との間の管路１０を一定温度に
保つための冷却手段１１を備えることを特徴とする。こ
の冷却手段１１は、例えば管路１０の外周面に接する内
周面を有する断面ドーナツ状の中空管体からなり、その
内部に冷媒を流通させる構成とすることができる。ま
た、冷却手段１１には循環路１２が接続され、ポンプ１
３により冷媒を循環させる。冷媒は特に制限されるもの
ではないが、安価であることから水が好ましい。また、
管路１０の温度は図示は省略される温度センサにより測
定され、その値が制御ユニット１４に送られる。そし
て、制御ユニット１４は測定値を基にポンプ１３の出力
を調整して冷媒の流通量を変化させることにより、管路
１０を所定の設定温度に維持する。The resin coating apparatus for an optical fiber according to the present invention is characterized in that it comprises a cooling means 11 for keeping the pipe 10 between the solenoid valve 9 and the coating die 4 at a constant temperature. The cooling means 11 is, for example, a donut-shaped hollow tubular body having an inner peripheral surface that is in contact with the outer peripheral surface of the pipeline 10, and can be configured to allow a refrigerant to flow therethrough. Further, a circulation path 12 is connected to the cooling means 11 so that the pump 1
The refrigerant is circulated by 3. The refrigerant is not particularly limited, but water is preferred because it is inexpensive. Also,
The temperature of the conduit 10 is measured by a temperature sensor (not shown), and the value is sent to the control unit 14. Then, the control unit 14 adjusts the output of the pump 13 based on the measured value to change the flow rate of the refrigerant, thereby maintaining the pipe 10 at a predetermined set temperature.
【００１２】冷却手段１０は上記した中空管体の他にも
種々の形態が可能であり、例えば冷媒を貯蔵した槽中に
管路１０を浸漬する構成としてもよい。この場合も、ポ
ンプ１３により冷媒を一方から汲み上げ、他方から流下
させて循環路１２を形成し、制御ユニット１４によりポ
ンプ１３を制御して管路１０の温度調整を行う。また、
この冷媒槽を用いる場合には、液面からの冷媒の蒸発分
を補うために、冷媒補給機構を付加することが好まし
い。The cooling means 10 can take various forms other than the above-mentioned hollow tube body. For example, the cooling means 10 may be configured so that the pipe line 10 is immersed in a tank storing a refrigerant. Also in this case, the refrigerant is pumped up from one side by the pump 13 and is made to flow down from the other side to form the circulation path 12, and the control unit 14 controls the pump 13 to adjust the temperature of the pipe 10. Also,
When this refrigerant tank is used, it is preferable to add a refrigerant supply mechanism in order to compensate for the evaporation of the refrigerant from the liquid level.
【００１３】尚、上記冷却手段１０において、冷媒は循
環路１２を流通する間に自然冷却されるが、長時間の循
環により冷媒の液温が上昇し過ぎる場合を想定して、冷
媒の冷却手段を別途設けてもよい。In the cooling means 10, the refrigerant is naturally cooled while flowing through the circulation path 12. However, in the case where the liquid temperature of the refrigerant is excessively increased by long-time circulation, the cooling means of the refrigerant is used. May be separately provided.
【００１４】[0014]
【実施例】以下、実施例により本発明を更に具体的に説
明する。図１に示した本発明の光ファイバ用樹脂被覆装
置（以下、被覆装置Ａと呼ぶ）と、図５に示した従来の
光ファイバ用樹脂被覆装置（以下、被覆装置Ｂと呼ぶ）
とを用い、図３に示すＵＶ素線２４の外周にシリコン系
紫外線硬化型樹脂からなる緩衝層２５を形成した。被覆
装置Ａが冷却手段を備えること以外は、両被覆装置とも
同一部品で構成し、被覆条件も同一とした。尚、シリコ
ン系紫外線硬化型樹脂のモノマー溶液の２３℃での粘度
は約３０００ｃｐｓであり、被覆膜厚が８０μｍとなる
ように設定した。そして、実際の樹脂被覆を連続して行
い、３０００ｍ毎に被覆外径を測定したところ、被覆装
置Ｂでは３０００ｍ経過後の被覆外径の変動率が６％で
あったのに対して、被覆装置Ａでは１％と極めて低く抑
えられていた。EXAMPLES The present invention will be described more specifically with reference to the following examples. The optical fiber resin coating apparatus of the present invention shown in FIG. 1 (hereinafter, referred to as coating apparatus A) and the conventional optical fiber resin coating apparatus shown in FIG. 5 (hereinafter, referred to as coating apparatus B).
A buffer layer 25 made of a silicon-based ultraviolet curable resin was formed on the outer periphery of the UV element wire 24 shown in FIG. Except that the coating apparatus A was provided with a cooling means, both coating apparatuses were composed of the same components, and the coating conditions were the same. The viscosity of the monomer solution of the silicon-based ultraviolet curable resin at 23 ° C. was set to be about 3000 cps and the coating film thickness to be 80 μm. Then, the actual resin coating was continuously performed, and the coating outer diameter was measured every 3000 m. In the coating apparatus B, the variation rate of the coating outer diameter after 3000 m was 6%, whereas the coating apparatus B had a variation rate of 6%. In the case of A, it was kept extremely low at 1%.
【００１５】以上、本発明の光ファイバ用樹脂被覆装置
について説明したが、本被覆装置は、上記の如く緩衝層
の形成や着色インクの塗工の他にも、一次被覆層や二次
被覆層の形成、あるいは光ファイバテープ心線とする時
の一括被覆材の形成等、光ファイバの被覆工程の全てに
適用可能であり、それぞれの用途において被覆外径を精
度よく制御できる。Although the resin coating apparatus for optical fibers according to the present invention has been described above, the present coating apparatus may be used for forming a primary coating layer or a secondary coating layer in addition to the formation of the buffer layer and the application of the coloring ink as described above. The present invention can be applied to all optical fiber coating processes, such as forming an optical fiber tape or forming a collective coating material when forming an optical fiber ribbon, and the coating outer diameter can be accurately controlled in each application.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の光ファイ
バ用樹脂被覆装置は、管路を所定温度に保つための冷却
手段を備えるために、電磁弁が発熱しても、管路を通過
する間に被覆樹脂液の液温を所定の液温まで低下させ、
常に一定の粘度の被覆樹脂液を被覆用ダイスに供給する
ことができ、被覆外径の変動を効果的に抑えることがで
きる。As described above, the resin coating apparatus for optical fibers of the present invention is provided with the cooling means for maintaining the pipe at a predetermined temperature. The liquid temperature of the coating resin liquid to a predetermined liquid temperature during
The coating resin liquid having a constant viscosity can always be supplied to the coating die, and the fluctuation of the coating outer diameter can be effectively suppressed.
【図１】本発明の光ファイバ用樹脂被覆装置の構成を示
す概略図である。FIG. 1 is a schematic view showing a configuration of an optical fiber resin coating apparatus of the present invention.
【図２】樹脂被覆光ファイバの１例を示す断面図であ
る。FIG. 2 is a cross-sectional view showing an example of a resin-coated optical fiber.
【図３】樹脂被覆光ファイバの他の例を示す断面図であ
る。FIG. 3 is a sectional view showing another example of the resin-coated optical fiber.
【図４】光ファイバテープ心線の構成を示す断面図であ
り、（Ａ）は２心の光ファイバテープ心線、（Ｂ）は４
心の光ファイバテープ心線を示す。FIGS. 4A and 4B are cross-sectional views showing the configuration of an optical fiber ribbon, in which FIG.
3 shows a fiber optic ribbon of the heart.
【図５】従来の光ファイバ用樹脂被覆装置の構成を示す
概略図である。FIG. 5 is a schematic view showing a configuration of a conventional optical fiber resin coating apparatus.
【図６】緩衝層に使用される一般的なシリコン系紫外線
硬化型樹脂の液温と粘度との関係を示すグラフである。FIG. 6 is a graph showing a relationship between a liquid temperature and a viscosity of a general silicon-based ultraviolet curable resin used for a buffer layer.
１ ボビン ２ 光ファイバ素線 ３ 繰り出しプーリー ４ 被覆用ダイス ５ 硬化装置 ６ キャプスタン ７ ボビン ８ 樹脂タンク ９ 電磁弁 １０ 管路 １１ 冷却手段 １２ 循環路 １３ ポンプ １４ 制御ユニット ２０ ガラスファイバ ２１ 一次被覆層（シリコン樹脂） ２２ 二次被覆層（シリコン樹脂） ２３ 最外層 ２４ ＵＶ素線 ２５ 緩衝層 ２６ 着色層 ２７ 一次被覆層（ウレタンアクリレート系紫外線硬化
型樹脂） ２８ 二次被覆層（ウレタンアクリレート系紫外線硬化
型樹脂）DESCRIPTION OF SYMBOLS 1 Bobbin 2 Optical fiber 3 Pull-out pulley 4 Die for coating 5 Curing device 6 Capstan 7 Bobbin 8 Resin tank 9 Solenoid valve 10 Pipe line 11 Cooling means 12 Circulation path 13 Pump 14 Control unit 20 Glass fiber 21 Primary coating layer ( 22 Secondary coating layer (silicone resin) 23 Outermost layer 24 UV element 25 Buffer layer 26 Colored layer 27 Primary coating layer (urethane acrylate ultraviolet curing resin) 28 Secondary coating layer (urethane acrylate ultraviolet curing resin) resin)
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H050 BA12 BA22 BB03S BB04Q BB04R BB07Q BB07R BB14Q BB14R BB17Q BB17R BB33Q BB33R 4G060 AA03 AC15 AD22 AD52 AD53 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H050 BA12 BA22 BB03S BB04Q BB04R BB07Q BB07R BB14Q BB14R BB17Q BB17R BB33Q BB33R 4G060 AA03 AC15 AD22 AD52 AD53
Claims (1)
光ファイバに樹脂層を形成するための装置であって、 光ファイバの送り出し手段と、 光ファイバの巻き取り手段と、 被覆樹脂液を貯蔵する樹脂タンクと、 樹脂タンクから供給される被覆樹脂液を光ファイバに塗
工する被覆用ダイスと、 樹脂タンクと被覆用ダイスとを接続する管路に配置され
て、前記被覆用ダイスへの被覆樹脂液の供給量を制御す
る電磁弁と、 管路を一定温度に保つための冷却手段と、 光ファイバに塗工された被覆樹脂液を硬化させるための
硬化手段とを備えることを特徴とする光ファイバ用樹脂
被覆装置。1. An apparatus for forming a resin layer on an optical fiber which is continuously fed and wound, comprising: an optical fiber sending means; an optical fiber winding means; and a coating resin liquid. A resin tank to be coated; a coating die for coating the coating resin liquid supplied from the resin tank onto the optical fiber; and a pipe disposed between the resin tank and the coating die, for coating the coating die. It is characterized by comprising an electromagnetic valve for controlling the supply amount of the resin liquid, a cooling means for maintaining the pipe at a constant temperature, and a curing means for curing the coating resin liquid applied to the optical fiber. Resin coating device for optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10160753A JP2000001341A (en) | 1998-06-09 | 1998-06-09 | Resin coating device for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10160753A JP2000001341A (en) | 1998-06-09 | 1998-06-09 | Resin coating device for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000001341A true JP2000001341A (en) | 2000-01-07 |
Family
ID=15721728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10160753A Pending JP2000001341A (en) | 1998-06-09 | 1998-06-09 | Resin coating device for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000001341A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002012454A (en) * | 2000-05-02 | 2002-01-15 | Lucent Technol Inc | Method and device for increasing uv amount and throughput for high speed uv hardening process |
| JP2004125846A (en) * | 2002-09-30 | 2004-04-22 | Totoku Electric Co Ltd | Optical fiber coil, optical fiber sensor, and manufacturing method thereof |
| CN105859121A (en) * | 2016-03-31 | 2016-08-17 | 杭州富通通信技术股份有限公司 | An optical fiber wire-drawing process |
| US12012358B2 (en) | 2020-06-19 | 2024-06-18 | Corning Incorporated | Method of applying coating liquid to an optical fiber |
-
1998
- 1998-06-09 JP JP10160753A patent/JP2000001341A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002012454A (en) * | 2000-05-02 | 2002-01-15 | Lucent Technol Inc | Method and device for increasing uv amount and throughput for high speed uv hardening process |
| JP2004125846A (en) * | 2002-09-30 | 2004-04-22 | Totoku Electric Co Ltd | Optical fiber coil, optical fiber sensor, and manufacturing method thereof |
| CN105859121A (en) * | 2016-03-31 | 2016-08-17 | 杭州富通通信技术股份有限公司 | An optical fiber wire-drawing process |
| US12012358B2 (en) | 2020-06-19 | 2024-06-18 | Corning Incorporated | Method of applying coating liquid to an optical fiber |
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