CN112570199B - 一种断续连接光纤带涂覆方法 - Google Patents

一种断续连接光纤带涂覆方法 Download PDF

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CN112570199B
CN112570199B CN202011489727.2A CN202011489727A CN112570199B CN 112570199 B CN112570199 B CN 112570199B CN 202011489727 A CN202011489727 A CN 202011489727A CN 112570199 B CN112570199 B CN 112570199B
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林海龙
张成龙
王小泉
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Nanjing Wasin Fujikura Optical Communication Ltd
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    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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Abstract

本发明公开了一种断续连接光纤带涂覆方法,本发明对树脂进行发泡处理,使用专用模具组涂覆,在光纤带上形成间断涂覆,经过UV固化,形成一种易弯曲光纤带。通过使用本涂覆方法生产出的光纤带,有着良好的弯曲性能,可以大大提高套管填充密度,在相同光缆外径尺寸下,能有效的提高光纤芯数,也可以提高城市管道资源的利用率。树脂不是连续涂覆,所以光纤带柔软,容易弯曲变形,大大降低了树脂用量,节能环保。

Description

一种断续连接光纤带涂覆方法
技术领域:
本发明涉及一种断续连接光纤带涂覆方法。
背景技术:
传统光纤带,通过UV树脂涂覆在排列好的光纤上,然后经过UV炉进行固化,结构分为边缘粘结型和整体包覆型。但是存在以下缺陷:
1)由于UV树脂是连续涂覆在光纤周围,所以光纤带有一定的硬度。
2)光纤带横向上无法弯曲,所以导致套塑工序生产中,必须给光纤带留有足够的空间,造成光缆尺寸偏大, 无法达到节能降耗的目的,同时因为光缆外径偏大,在城市管道资源日趋紧张的情况下,增加了使用和施工成本。
发明内容:
本发明是为了解决上述现有技术存在的问题而提供一种断续连接光纤带涂覆方法。
本发明所采用的技术方案有:一种断续连接光纤带涂覆方法,包括
1)对树脂罐内的树脂进行搅拌,同时对树脂罐内充入氮气,得到气泡均匀,发泡度为35~65%的树脂;
2)2~24芯光纤从光纤放线架放出,按照设定的颜色排列,经过除静电后进入到涂覆模具中;
3)将树脂罐内发泡度为35%~65%的树脂通过压力填充到涂覆模具内,光纤穿过涂覆模具进行树脂涂覆;
4)光纤从涂覆模具中出来以后通过整形模具,在整形模具上施加负压并除掉已涂覆在光纤上树脂内的气泡,进行光纤整形;
5)光纤经过整形模具出来后,经过UV固化炉进行固化,收线形成光纤带。
进一步地,所述树脂罐包括罐体、罐盖、搅拌叶、充气管和出液管,所述罐盖密封连接在罐体上,搅拌叶转动连接在罐体的底部,充气管和出液管均穿过罐盖伸于罐体内,在罐盖上设有加压孔。
进一步地,所述涂覆模具上设有涂覆模腔和树脂流道,所述树脂流道与涂覆模腔相连通,光纤从涂覆模腔进入涂覆模具,树脂罐内的树脂通过树脂流道填充到涂覆模具内。
进一步地,所述树脂流道包括圆锥形腔体和进口流道,两个圆锥形腔体分层设置在涂覆模腔的外侧并与涂覆模腔同心布置,两个圆锥形腔体均与涂覆模腔相连通,进口流道与两个圆锥形腔体相连通。
进一步地,所述整形模具上设有整形模腔和负压气道,所述负压气道与整形模腔相连通,所述整形模腔与涂覆模腔同轴布置,光纤从整形模腔进入整形模具,在负压气道上连接气管。
进一步地,所述负压气道包括圆锥形气道和接口,两个圆锥形气道分层设置在整形模腔的外侧并与整形模腔同心布置,两个圆锥形气道均与整形模腔相连通,接口与两圆锥形气道相连通,在接口上连接接气嘴。
本发明具有如下有益效果:
本发明对树脂进行发泡处理,使用专用模具组涂覆,在光纤带上形成间断涂覆,经过UV固化,形成一种易弯曲光纤带。通过使用本涂覆方法生产出的光纤带,有着良好的弯曲性能,可以大大提高套管填充密度,在相同光缆外径尺寸下,能有效的提高光纤芯数,也可以提高城市管道资源的利用率。树脂不是连续涂覆,所以光纤带柔软,容易弯曲变形,大大降低了树脂用量,节能环保。
附图说明:
图 1 为本发明中树脂罐的结构图。
图 2 为本发明中涂覆模具与整形模具的结构图。
图 3 为通过本发明发明涂覆光纤带后,树脂在光纤带上的示意图(树脂是无序排列)。
具体实施方式:
下面结合附图对本发明作进一步的说明。
如图1至图3,本发明一种断续连接光纤带涂覆方法,包括:
1)对树脂罐内的树脂进行搅拌,同时对树脂罐内充入氮气,得到气泡均匀,发泡度为35~65%的树脂;
2)2~24芯光纤从光纤放线架放出,按照设定的颜色排列,经过除静电后进入到涂覆模具中;
3)将树脂罐内发泡度为35%~65%的树脂通过压力填充到涂覆模具内,光纤穿过涂覆模具进行树脂涂覆;
4)光纤从涂覆模具中出来以后通过整形模具,在整形模具上施加负压并除掉已涂覆在光纤上树脂内的气泡,进行光纤整形;
5)光纤经过整形模具出来后,经过UV固化炉进行固化,收线形成光纤带。
本发明中的树脂罐包括罐体11、罐盖12、搅拌叶13、充气管14和出液管15,罐盖12密封连接在罐体11上,搅拌叶13转动连接在罐体11的底部,充气管14和出液管15均穿过罐盖12伸于罐体11内,在罐盖12上设有加压孔16,加压孔16上连接管接头,使用时,加压孔16上的管接头连接加压泵,出液管15与涂覆模具相连。
涂覆模具上设有涂覆模腔21和树脂流道22,树脂流道22与涂覆模腔21相连通,光纤从涂覆模腔21进入涂覆模具,树脂罐内的树脂通过树脂流道22填充到涂覆模具内。
树脂流道22包括圆锥形腔体221和进口流道222,两个圆锥形腔体221分层设置在涂覆模腔21的外侧并与涂覆模腔21同心布置,两个圆锥形腔体221均与涂覆模腔21相连通,进口流道222与两个圆锥形腔体221相连通。进口流道222与出液管15相连。
整形模具上设有整形模腔31和负压气道32,负压气道32与整形模腔31相连通,整形模腔31与涂覆模腔21同轴布置,光纤从整形模腔31进入整形模具,在负压气道32上连接气管。接气管连接负压泵。
负压气道32包括圆锥形气道321和接口322,两个圆锥形气道321分层设置在整形模腔31的外侧并与整形模腔31同心布置,两个圆锥形气道321均与整形模腔31相连通,接口322与两圆锥形气道321相连通,在接口322上连接接气嘴,接气嘴通过接气管连接负压泵。
本发明在树脂罐中进行发泡处理,树脂发泡度为35~65%,涂覆模具有2组,树脂以一定压力进入涂覆模具中,涂覆光纤,整形模具内施加一定负压,除掉树脂内气泡,形成间断涂覆,由于树脂不是连续涂覆,所以光纤带柔软,容易弯曲变形,大大降低了树脂用量,节能环保。
通过本涂覆方法可以生产出易弯曲光纤带,。该光纤带可以大大提高套管填充密度,在相同光缆外径尺寸下,能有效的提高光纤芯数,也可以提高城市管道资源的利用率。
本发明通过对UV固化树脂进行充分的发泡,使得树脂产生大小均匀,稳定的气泡,然后通过专用涂覆模具组,经过UV光固化,成为易弯曲光纤带。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下还可以作出若干改进,这些改进也应视为本发明的保护范围。

Claims (6)

1.一种断续连接光纤带涂覆方法,其特征在于:包括
1)对树脂罐内的树脂进行搅拌,同时对树脂罐内充入氮气,得到气泡均匀,发泡度为35% ~65%的树脂;
2)2~24芯光纤从光纤放线架放出,按照设定的颜色排列,经过除静电后进入到涂覆模具中;
3)将树脂罐内发泡度为35%~65%的树脂通过压力填充到涂覆模具内,光纤穿过涂覆模具进行树脂涂覆;
4)光纤从涂覆模具中出来以后通过整形模具,在整形模具上施加负压并除掉已涂覆在光纤上树脂内的气泡,进行光纤整形;
5)光纤经过整形模具出来后,经过UV固化炉进行固化,收线形成光纤带,
所述整形模具上设有整形模腔(31)和负压气道(32),所述负压气道(32)与整形模腔(31)相连通,在负压气道(32)上连接气管,接气管连接负压泵。
2.如权利要求1所述的断续连接光纤带涂覆方法,其特征在于:所述树脂罐包括罐体(11)、罐盖(12)、搅拌叶(13)、充气管(14)和出液管(15),所述罐盖(12)密封连接在罐体(11)上,搅拌叶(13)转动连接在罐体(11)的底部,充气管(14)和出液管(15)均穿过罐盖(12)伸于罐体(11)内,在罐盖(12)上设有加压孔(16)。
3.如权利要求1所述的断续连接光纤带涂覆方法,其特征在于:所述涂覆模具上设有涂覆模腔(21)和树脂流道(22),所述树脂流道(22)与涂覆模腔(21)相连通,光纤从涂覆模腔(21)进入涂覆模具,树脂罐内的树脂通过树脂流道(22)填充到涂覆模具内。
4.如权利要求3所述的断续连接光纤带涂覆方法,其特征在于:所述树脂流道(22)包括圆锥形腔体(221)和进口流道(222),两个圆锥形腔体(221)分层设置在涂覆模腔(21)的外侧并与涂覆模腔(21)同心布置,两个圆锥形腔体(221)均与涂覆模腔(21)相连通,进口流道(222)与两个圆锥形腔体(221)相连通。
5.如权利要求4所述的断续连接光纤带涂覆方法,其特征在于:所述整形模腔(31)与涂覆模腔(21)同轴布置,光纤从整形模腔(31)进入整形模具,在负压气道(32)上连接气管。
6.如权利要求5所述的断续连接光纤带涂覆方法,其特征在于:所述负压气道(32)包括圆锥形气道(321)和接口(322),两个圆锥形气道(321)分层设置在整形模腔(31)的外侧并与整形模腔(31)同心布置,两个圆锥形气道(321)均与整形模腔(31)相连通,接口(322)与两圆锥形气道(321)相连通,在接口(322)上连接接气嘴。
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