JPH04237944A - Ultraviolet irradiating device for hardening ultraviolet-setting resin - Google Patents
Ultraviolet irradiating device for hardening ultraviolet-setting resinInfo
- Publication number
- JPH04237944A JPH04237944A JP1947191A JP1947191A JPH04237944A JP H04237944 A JPH04237944 A JP H04237944A JP 1947191 A JP1947191 A JP 1947191A JP 1947191 A JP1947191 A JP 1947191A JP H04237944 A JPH04237944 A JP H04237944A
- Authority
- JP
- Japan
- Prior art keywords
- ultraviolet
- linear body
- lamp
- ultraviolet lamp
- irradiation device
- 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
- 239000011347 resin Substances 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 title claims abstract description 15
- 230000001678 irradiating effect Effects 0.000 title description 4
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000013307 optical fiber Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は例えば光ファイバのよう
な線状体に塗布した紫外線硬化樹脂(UV樹脂)に紫外
線を照射してUV樹脂を硬化させる紫外線照射装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultraviolet irradiation device for curing an ultraviolet curing resin (UV resin) coated on a linear body such as an optical fiber by irradiating ultraviolet rays thereon.
【0002】0002
【従来の技術】光ファイバの被覆材には主としてUV樹
脂が使用されている。光ファイバのような線状体にUV
樹脂を被覆するには図4に示すように、光ファイバ1の
線引き時に同光ファイバ1にUV樹脂aを塗布し、その
直後に同光ファイバ1を紫外線照射装置20の石英管2
内を通過させ、その間に例えば図5のマグネトロン21
により発振される電磁波エネルギ−により紫外線ランプ
3内のガスを励起して紫外線を放射させる。この紫外線
の一部が石英管2を通して内部の線状体1を照射し、紫
外線の一部は放射線状に形成された反射ミラ−6により
反射されて石英管2内の線状体1を照射して、UV樹脂
aを硬化させている。この場合、石英管2内に酸素が入
ると前記UV樹脂が完全に硬化されずべたつくため、通
常は石英管2内にN2 等の不活性ガスを導入して不活
性ガス雰囲気中で硬化させている。2. Description of the Related Art UV resin is mainly used as a coating material for optical fibers. UV on linear objects such as optical fibers
To coat the resin, as shown in FIG. 4, UV resin a is applied to the optical fiber 1 at the time of drawing the optical fiber 1, and immediately after that, the optical fiber 1 is exposed to the quartz tube 2 of the ultraviolet irradiation device 20.
For example, the magnetron 21 in FIG.
The electromagnetic wave energy oscillated by the ultraviolet lamp 3 excites the gas within the ultraviolet lamp 3 to emit ultraviolet light. A part of this ultraviolet rays passes through the quartz tube 2 and irradiates the linear body 1 inside it, and a part of the ultraviolet rays is reflected by the reflective mirror 6 formed in a radial shape and irradiates the linear body 1 inside the quartz tube 2. The UV resin a is cured. In this case, if oxygen enters the quartz tube 2, the UV resin will not be completely cured and will become sticky, so normally an inert gas such as N2 is introduced into the quartz tube 2 and cured in an inert gas atmosphere. There is.
【0003】0003
【発明が解決しようとする課題】従来の紫外線照射装置
は次のような課題があった。■.紫外線ランプは電磁波
の共振によりプラズマ発光する。その為導波管先端部は
電磁波共振器となっている。この為導波管先端部は電磁
波に対しては閉じていなければならず、一方紫外線に対
しては開いていなければならない。この目的で紫外線ラ
ンプ3と線状体1の間に金網(電磁シールド23)を設
けなければならない。■.紫外線ランプ3内で発生した
紫外線は紫外線ランプ3自体のガラス壁と石英管2のガ
ラス壁とで二度減衰されるので、紫外線が線状体1の照
射に利用される割合、即ち照射効率がよくない。このた
め一定量の紫外線を照射するためにはより多くの紫外線
を必要とする。■.構造が複雑でコストが高く、メンテ
ナンスに難がある。[Problems to be Solved by the Invention] Conventional ultraviolet irradiation devices have had the following problems. ■. Ultraviolet lamps emit plasma through resonance of electromagnetic waves. Therefore, the tip of the waveguide becomes an electromagnetic wave resonator. For this reason, the tip of the waveguide must be closed to electromagnetic waves, but open to ultraviolet radiation. For this purpose, a wire mesh (electromagnetic shield 23) must be provided between the ultraviolet lamp 3 and the linear body 1. ■. Since the ultraviolet rays generated in the ultraviolet lamp 3 are attenuated twice by the glass wall of the ultraviolet lamp 3 itself and the glass wall of the quartz tube 2, the rate at which the ultraviolet rays are used to irradiate the linear body 1, that is, the irradiation efficiency, is reduced. not good. Therefore, more ultraviolet rays are required to irradiate a certain amount of ultraviolet rays. ■. The structure is complex, the cost is high, and maintenance is difficult.
【0004】0004
【発明の目的】本発明の目的は一つの石英管に従来の紫
外線ランプと従来の石英管の機能を併せ持たせることに
より、紫外線の照射効率がよい紫外線照射装置を提供す
ることにある。OBJECTS OF THE INVENTION An object of the present invention is to provide an ultraviolet irradiation device with high efficiency in irradiating ultraviolet rays by combining the functions of a conventional ultraviolet lamp and a conventional quartz tube in one quartz tube.
【0005】[0005]
【課題を解決するための手段】本発明のうち請求項1の
紫外線照射装置は図1〜図3に示すように、紫外線硬化
樹脂aを塗布した線状体1に紫外線ランプ3から発生す
る紫外線を投射して、同紫外線硬化樹脂aを硬化させる
ようにした紫外線照射装置において、前記紫外線ランプ
3を二重パイプとし、その内側に線状体1が通過する線
状体通路4を設け、その内部に紫外線を発光する物質を
封入したことを特徴とするものである。[Means for Solving the Problems] The ultraviolet irradiation device according to claim 1 of the present invention, as shown in FIGS. 1 to 3, uses ultraviolet rays generated from an ultraviolet lamp 3 to In this ultraviolet irradiation device, the ultraviolet ray lamp 3 is made of a double pipe, and a linear body passage 4 through which the linear body 1 passes is provided inside the ultraviolet lamp 3, It is characterized by having a substance that emits ultraviolet rays sealed inside.
【0006】本発明のうち請求項2の紫外線照射装置は
図2、図3に示すように、請求項1における前記二重パ
イプからなる紫外線ランプ3の外側のガラス壁5の内側
又は外側に、紫外線ランプ3の紫外線を発光する物質を
励起する電磁波は透過するが、同紫外線ランプ3から発
生される紫外線は反射する反射ミラ−6を設けたことを
特徴とするものである。As shown in FIGS. 2 and 3, the ultraviolet ray irradiation device according to claim 2 of the present invention is provided with: The device is characterized by the provision of a reflective mirror 6 which allows the electromagnetic waves that excite the ultraviolet-emitting substance of the ultraviolet lamp 3 to pass therethrough, but reflects the ultraviolet rays emitted from the ultraviolet lamp 3.
【0007】[0007]
【作用】本発明のうち請求項1の紫外線照射装置では紫
外線ランプ3を二重パイプとし、その内側に線状体1が
通過する線状体通路4を設け、その内部に紫外線発光物
質を封入したので、線状体通路4を通過する線状体1と
紫外線ランプ3の距離が近くなり、また、紫外線ランプ
3内で発生した紫外線は紫外線ランプ3自体のガラス壁
5でしか減衰されないので線状体1への紫外線照射効率
が向上する。[Operation] In the ultraviolet irradiation device according to claim 1 of the present invention, the ultraviolet lamp 3 is a double pipe, inside of which is provided a linear body passage 4 through which the linear body 1 passes, and an ultraviolet light-emitting substance is sealed inside the pipe. Therefore, the distance between the linear body 1 passing through the linear body passage 4 and the ultraviolet lamp 3 becomes short, and the ultraviolet rays generated within the ultraviolet lamp 3 are attenuated only by the glass wall 5 of the ultraviolet lamp 3 itself. The efficiency of irradiating ultraviolet light onto the shaped body 1 is improved.
【0008】本発明のうち請求項2の紫外線照射装置で
は前記紫外線ランプ3の外側のガラス壁5の内側又は外
側に設けた反射ミラ−6により、紫外線ランプ3から発
光される紫外線が内側に反射され、紫外線が有効利用さ
れる。In the ultraviolet irradiation device according to claim 2 of the present invention, the ultraviolet rays emitted from the ultraviolet lamp 3 are reflected inward by a reflective mirror 6 provided on the inside or outside of the glass wall 5 outside the ultraviolet lamp 3. UV light is used effectively.
【0009】[0009]
【実施例】本発明の紫外線照射装置を示す図1〜図3に
おいて、1は表面にUV樹脂が塗布されている光ファイ
バである。DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 to 3 showing the ultraviolet irradiation apparatus of the present invention, reference numeral 1 denotes an optical fiber whose surface is coated with UV resin.
【0010】3は中央部に同光ファイバ1を通過させる
線状体通路4を有する紫外線ランプである。この紫外線
ランプ3は図3に示すように二重パイプにしてあり、そ
の内側に線状体1が通過する線状体通路4を設け、その
内部に紫外線を発光する物質(ガス)を封入してある。Reference numeral 3 denotes an ultraviolet lamp having a linear body passage 4 in the center thereof through which the optical fiber 1 passes. As shown in FIG. 3, this ultraviolet lamp 3 is made of a double pipe, with a linear body passage 4 provided inside thereof through which the linear body 1 passes, and a substance (gas) that emits ultraviolet rays is sealed inside the pipe. There is.
【0011】6は反射ミラ−であり、図2に示す反射ミ
ラ−6は円筒状にして紫外線ランプ3のガラス壁5の外
側に別個に設けてあり、図3に示す反射ミラ−6は紫外
線ランプ3のガラス壁5の内面にコ−ティングする等し
て設けてある。尚、図2において反射ミラ−6を図3と
同様に紫外線ランプ3のガラス壁5の外側にコ−ティン
グにより設けても良い。この反射ミラ−6の材質はマグ
ネットロン21の発する電磁波は透過し、紫外線は反射
するものである。Reference numeral 6 denotes a reflection mirror, and the reflection mirror 6 shown in FIG. 2 has a cylindrical shape and is separately provided on the outside of the glass wall 5 of the ultraviolet lamp 3. The reflection mirror 6 shown in FIG. It is provided by coating the inner surface of the glass wall 5 of the lamp 3. Incidentally, in FIG. 2, the reflection mirror 6 may be provided on the outside of the glass wall 5 of the ultraviolet lamp 3 by coating as in FIG. 3. The material of the reflective mirror 6 is such that the electromagnetic waves emitted by the magnetron 21 are transmitted therethrough and the ultraviolet rays are reflected.
【0012】0012
【発明の効果】本発明の紫外線照射装置は次のような効
果がある。■.線状体通路4を通過する線状体1と紫外
線ランプ3の距離が近くなるので紫外線照射効率が向上
する。■.紫外線ランプ3と電磁波のマッチングがとり
易くなるのでシ−ルド23が不要となり、構造が簡潔に
なる。[Effects of the Invention] The ultraviolet irradiation device of the present invention has the following effects. ■. Since the distance between the linear body 1 passing through the linear body passage 4 and the ultraviolet lamp 3 becomes short, the efficiency of ultraviolet irradiation is improved. ■. Since it becomes easier to match the ultraviolet lamp 3 and electromagnetic waves, the shield 23 becomes unnecessary and the structure becomes simpler.
【0013】■.請求項2の紫外線照射装置では反射ミ
ラ−6を設けたので紫外線が更に有効利用される。■.
反射ミラ−6は紫外線は反射するが、紫外線ランプ3内
の紫外線を発光する物質を励起する電磁波は透過するの
で、紫外線ランプ3に投射される電磁波は遮断されるこ
となく、紫外線ランプ3に入射できる。■.紫外線照射
効率が向上するので、図5に示すように従来は二台の高
周波発振器(マグネトロン)21で紫外線ランプ3を励
起していたものが、一台の高周波発振器(マグネトロン
)21で従来の照射レベルに匹敵する照射量が得られる
。[0013]■. In the ultraviolet ray irradiation device according to the second aspect of the invention, since the reflection mirror 6 is provided, the ultraviolet rays can be used more effectively. ■.
Although the reflective mirror 6 reflects ultraviolet rays, it transmits the electromagnetic waves that excite the substance that emits ultraviolet rays in the ultraviolet lamp 3, so the electromagnetic waves projected onto the ultraviolet lamp 3 are not blocked and enter the ultraviolet lamp 3. can. ■. Because the efficiency of ultraviolet irradiation is improved, as shown in FIG. A radiation dose comparable to the level can be obtained.
【図1】同図aは本発明の紫外線照射装置の平面図、同
図bは同図aの側面図。FIG. 1A is a plan view of an ultraviolet irradiation device of the present invention, and FIG. 1B is a side view of FIG.
【図2】同図aは本発明の紫外線照射装置の他の例の平
面図、同図bは同図aの側面図。FIG. 2A is a plan view of another example of the ultraviolet irradiation device of the present invention, and FIG. 2B is a side view of FIG.
【図3】本発明における石英管の一例を示す縦断面図。FIG. 3 is a longitudinal cross-sectional view showing an example of a quartz tube in the present invention.
【図4】従来の紫外線照射装置の縦断側面図。FIG. 4 is a vertical side view of a conventional ultraviolet irradiation device.
【図5】同図aは従来の紫外線照射装置の平面図、同図
bは同図aの側面図。FIG. 5A is a plan view of a conventional ultraviolet irradiation device, and FIG. 5B is a side view of FIG.
a 紫外線硬化樹脂 1 線状体 2 石英管 3 紫外線ランプ 4 線状体通路 5 ガラス壁 6 反射ミラ− a UV curing resin 1 Linear body 2 Quartz tube 3. Ultraviolet lamp 4 Linear body passage 5 Glass wall 6 Reflection mirror
Claims (2)
に紫外線ランプ3から発生される紫外線を投射して、同
紫外線硬化樹脂aを硬化させるようにした紫外線照射装
置において、前記紫外線ランプ3を二重パイプとし、そ
の内側に線状体1が通過する線状体通路4を設け、その
内部に紫外線を発光する物質を封入したことを特徴とす
る紫外線硬化樹脂硬化用の紫外線照射装置。[Claim 1] Linear body 1 coated with ultraviolet curing resin a
In the ultraviolet irradiation device, the ultraviolet rays emitted from an ultraviolet lamp 3 are projected to cure the ultraviolet curable resin a, the ultraviolet lamp 3 is a double pipe, and the linear body 1 passes inside thereof. An ultraviolet irradiation device for curing an ultraviolet curing resin, characterized in that a linear body passageway 4 is provided, and a substance that emits ultraviolet light is sealed inside the linear body passageway 4.
3の外側ガラス壁5の内側又は外側に、紫外線ランプ3
の紫外線を発光する物質を励起する電磁波は透過するが
、同紫外線ランプ3から発生される紫外線は反射する反
射ミラ−6を設けたことを特徴とする紫外線硬化樹脂硬
化用の紫外線照射装置。2. An ultraviolet lamp 3 is installed inside or outside the outer glass wall 5 of the ultraviolet lamp 3 made of the double pipe.
An ultraviolet irradiation device for curing an ultraviolet curable resin, characterized in that it is provided with a reflective mirror 6 that transmits electromagnetic waves that excite substances that emit ultraviolet rays, but reflects ultraviolet rays generated from the ultraviolet lamp 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1947191A JPH04237944A (en) | 1991-01-18 | 1991-01-18 | Ultraviolet irradiating device for hardening ultraviolet-setting resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1947191A JPH04237944A (en) | 1991-01-18 | 1991-01-18 | Ultraviolet irradiating device for hardening ultraviolet-setting resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04237944A true JPH04237944A (en) | 1992-08-26 |
Family
ID=12000243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1947191A Pending JPH04237944A (en) | 1991-01-18 | 1991-01-18 | Ultraviolet irradiating device for hardening ultraviolet-setting resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04237944A (en) |
-
1991
- 1991-01-18 JP JP1947191A patent/JPH04237944A/en active Pending
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