JP2004364439A - Covering cutting device for cable - Google Patents

Covering cutting device for cable Download PDF

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Publication number
JP2004364439A
JP2004364439A JP2003161242A JP2003161242A JP2004364439A JP 2004364439 A JP2004364439 A JP 2004364439A JP 2003161242 A JP2003161242 A JP 2003161242A JP 2003161242 A JP2003161242 A JP 2003161242A JP 2004364439 A JP2004364439 A JP 2004364439A
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JP
Japan
Prior art keywords
cable
cutting
holding frame
roller
shaving
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Pending
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JP2003161242A
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Japanese (ja)
Inventor
Tatsuo Sekiguchi
辰夫 関口
Takashi Narimatsu
貴 成松
Tsutomu Gunji
勉 郡司
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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Publication date
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Priority to JP2003161242A priority Critical patent/JP2004364439A/en
Publication of JP2004364439A publication Critical patent/JP2004364439A/en
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  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a covering cutting device for a cable capable of accurately and efficiently cutting the covering of the cable in a relatively short time, and realizing reductions in the size and cost for the structure of the device. <P>SOLUTION: This covering cutting device for the cable for cutting the covering of the cable A comprises a retaining frame 11 disposed concentrically with the cable A and provided rotatively around the axial line of the cable A, at least three cutting rollers 13 provided rotatively at the retaining frame 11 with a prescribed interval in a circumferential direction and rotated with being brought into contact with an outer peripheral surface of the cable A to cut the shield for the cable A, a retaining frame driving means 15 for rotating the retaining frame 11 around the the axial line of the cable A, the cutting roller driving means 17 having a planetary gear transmission mechanisms 31 for rotating the cutting rollers 13 around the axial line, a cable insertion guide 59 provided at a front position of the cutting rollers 13, and a cable support guide 63 provided at the rear position of the cutting rollers 13 so as to pierce the retaining frame 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は電力ケーブル、通信ケーブル(光ケーブルを含む)、絶縁電線(以下ケーブルと称する)を接続等する場合に、ケーブルの被覆(外被を含む)を削る(剥ぎ取る場合を含む)ケーブルの被覆削り装置に関するものである。
【0002】
【従来の技術】
従来、上記ケーブルの被覆を削る作業はガラス破片、ナイフ、サンドペーパ等を用いて手作業で行っていたが、熟練を要するほか、作業性が悪いため、手作業に代えて種々の装置、工具が開発され実用に供されている。その一例として、図7(a)(b)に示すように、削り取り対象となるケーブルAと同心的に配置され、ケーブルAの軸線を中心に回転可能に設けられた保持枠1の半径方向の一方側に、周方向へ所定間隔をおいてケーブルAを抑える2個の抑えローラ2を回転自在に設け、保持枠1の半径方向の他方側に、ケーブルAを間に挟み込むように前記抑えローラ2と対向させ、ケーブルAの外周面に接触するように複数の螺旋状刃3aを有する1個の削りローラ3を回転自在に設け、保持枠1を保持枠駆動手段(図示せず)で回転させながら、削りローラ3を削りローラ駆動手段(図示せず)で回転させることにより、ケーブルAの被覆を削るように構成したものがある(特許文献1参照)。
【0003】
【特許文献1】
実開平6−70413号全文明細書(考案の詳細な説明の項の段落番号0002乃至0005及び図5、6)
【0004】
【発明が解決しようとする課題】
しかしながら、このような被覆削り装置では、ケーブルAの被覆の削り取りに関与するローラは1個の削りローラ3だけであり、他のローラである2個の抑えローラ2はその削り取りに関与しない。従って、ケーブルAの被覆を削るのに時間がかかり、作業能率が低下するという問題がある。このような問題は保持枠1及び削りローラ3の回転数を上げれば解決するが、保持枠駆動手段及び削りローラ駆動手段の動力が増大して装置が大型化し、コストも高くなるという問題が新たに生じる。更に、ケーブルAの軸線と削りローラ3の回転中心間の距離が削りローラ3のケーブルAの周方向への回転に伴い変動し易く、ケーブルAの被覆を均等に、且つ、精度よく削ることが難しいという問題がある。
【0005】
本発明の目的は、ケーブルの被覆を精度よく比較的短い時間で能率よく削ることができ、更に、装置の構造が小型で安価なケーブルの被覆削り装置を提供することにある。
【0006】
【課題を解決するための手段】
上記目的を達成するため、本発明の請求項1に記載された発明は、ケーブルの被覆を削るためのケーブルの被覆削り装置において、ケーブルと同心的に配置され、ケーブルの軸線を中心に回転可能に設けられた保持枠と、保持枠にその周方向へ所定間隔をおいて回転自在に設けられ、ケーブルの外周面に接触させながら回転させてケーブルの被覆を削る少なくとも3個の削りローラと、保持枠をケーブルの軸線を中心に回転させる保持枠駆動手段と、削りローラをその軸線を中心に回転させる削りローラ駆動手段とを備えるものである。
【0007】
このような構成によると、所定間隔をおいて設けられた少なくとも3個の削りローラでケーブルの被覆を同時に削るので、該被覆を比較的短い時間で削ることが可能になり、作業能率を向上させることができる。
【0008】
また、これら削りローラでケーブルを少なくとも3方向から保持して該被覆を同時に削るので、ケーブルの軸線と削りローラの回転中心間の距離が削りローラのケーブルの周方向への回転に伴い変動するようなことがなく、ほぼ一定になり、ケーブルの被覆を均等に、且つ、精度よく削ることができる。
【0009】
更に、削りローラが抑えローラを兼用するので、ケーブルを保持する抑えローラを設けたり、被覆を短時間に削るために保持枠及び削りローラの回転数を上げたり、これに伴い、保持枠駆動手段及び削りローラ駆動手段の動力を増大させたりする必要がなく、被覆削り装置の構造を小型化し、且つ、製造、販売コストを安くすることができる。
【0010】
本発明の請求項2に記載された発明は、請求項1に記載されたケーブルの被覆削り装置において、前記削りローラ駆動手段が遊星歯車伝動機構を有するものである。
【0011】
このような構成によると、削りローラをケーブルの軸線を中心に回転させながら、削りローラの軸線を中心に回転させる機構が簡単になり、被覆削り装置の構造をより小型化することができる。
【0012】
本発明の請求項3に記載された発明は、請求項1又は2に記載されたケーブルの被覆削り装置において、前記削りローラの前方位置に筒状のケーブル挿入ガイドと、前記削りローラの後方位置に前記保持枠を貫通するように筒状のケーブル支持ガイドがそれぞれケーブルの軸線上に設けられるものである。
【0013】
このような構成によると、ケーブルの被覆を削る際、該ケーブルを少なくとも3個の削りローラとケーブル挿入ガイド及びケーブル支持ガイドとで支持するので、ケーブルをより安定して保持することが可能になり、ケーブルの被覆をより精度よく削ることができる。
【0014】
【発明の実施の形態】
次に本発明の実施形態を図面により詳細に説明する。図1乃至図6は、例えば、光ケーブルからなるケーブルAに光コネクタを接続する際、裏当スリーブの挿入で拡径した被覆の外周部分を元の被覆外径まで削るときに使用する本発明の被覆削り装置の一実施形態を示している。
【0015】
この装置は、ケーブルAと同心的に配置され、ケーブルAの軸線を中心に回転可能に設けられた保持枠11と、保持枠11にその周方向へ所定間隔をおいて回転自在に設けられ、ケーブルAの外周面に接触させながら回転させてケーブルAの被覆を削る3個の削りローラ13と、保持枠11をケーブルAの軸線を中心に回転させる保持枠駆動手段15と、削りローラ13をその軸線を中心に回転させる削りローラ駆動手段17とを備える。
【0016】
保持枠11は円筒状に形成され、ベース18に配設された角型ブロック状の固定フレーム19に、ケーブルAの軸線方向に沿った前後に嵌着された例えばボールベアリングからなる2個の軸受21により、ケーブルAと同心的に配置され、ケーブルAの軸線を中心に回転可能に設けられている。
【0017】
削りローラ13は、図1乃至図3に示すものでは、ダイヤモンドその他の砥粒をフェノール、ポリイミド等の樹脂その他の結合剤で結合して円板状に成形加工することにより形成された研削砥石からなる。削りローラ13はこのほかにローラ基体の外周面に複数の螺旋状刃又は直線状刃3aを有するフライス(ミーリング)カッター、ローラ本体の外周面に多数本の硬質金属細線材等を突出させたブラシ、ローラ基体の外周面に研磨材やサンドペーパを塗着、貼着したもの等、種々のものを適用することができる。この3個の削りローラ13は、図2に示すように、ケーブルAの軸線を中心に周方向へ120度等間隔をおいて回転自在に設けられる。なお、削りローラ13は周方向へ等間隔をおいて設けるのが好ましいがこれに限定されない。また、個数も3個以上であれば限定されないが、ケーブルの安定保持と装置構造の簡単化及び小型化を考慮し、3、4個が好ましい。
【0018】
保持枠駆動手段15は、図1、図4及び図5に示すように、固定フレーム19に配設された保持枠駆動モータ23と、その出力軸23aに設けられた駆動ベルトプーリ25と、保持枠11の前部(図1の右側)に保持枠11と一体に設けられた従動ベルトプーリ27と、駆動ベルトプーリ25と従動ベルトプーリ27間に張り渡された断面略V形状の伝動ベルト29とからなり、保持枠駆動モータ23を駆動することにより、その動力を駆動ベルトプーリ25、伝動ベルト29及び従動ベルトプーリ27を介して保持枠11に伝動し、保持枠11をケーブルAの軸線を中心に回転可能に構成されている。なお、保持枠駆動手段15は、上記ベルト伝動手段のほかにチェーン伝動手段、歯車伝動手段、流体圧伝動手段、これら伝動手段を組み合わせた複合タイプ等の駆動手段を用いることができる。
【0019】
削りローラ駆動手段17は、図1乃至図3に示すように、遊星歯車伝動機構31とこれを駆動する動力源である保持枠駆動手段16の保持枠駆動モータ23とを組み合わせて構成される。遊星歯車伝動機構31は、保持枠11の後部(図1の左側)に装着された軸受ホルダ34に固定ボルト35で取り付けられた1個の内歯歯車33と、保持枠11にあって、ケーブルAの軸線を中心に周方向へ120度等間隔をおいて穿設された3個の軸挿通穴11aの前後に嵌着された例えばボールベアリングからなる2個の軸受39により回転自在に支持される3個の動力伝動軸37と、各動力伝動軸37の後部(図1の左側)に設けられ、それぞれ内歯歯車33の内歯33a(図1、図6参照)にかみ合い、保持枠駆動手段15の従動ベルトプーリ27により回転する保持枠11に支持された動力伝動軸37の周方向への移動により駆動回転する3個の駆動遊星歯車41と、各動力伝動軸37の前部(図1の右側)に設けられた3個の従動遊星歯車43と、各従動遊星歯43にかみ合い、削りローラ13を支持する削りローラ支持軸47に設けられた3個の出力歯車45(図3参照)とからなる。
【0020】
そして、保持枠駆動手段15の保持枠駆動モータ23を駆動して従動ベルトプーリ27と保持枠11をケーブルAの軸線を中心にして所定方向、例えば、図2の反時計方向(図6の時計方向)へ回転させると、保持枠11の回転に伴い周方向へ移動する動力伝動軸37に設けられ、内歯歯車33にかみ合う3個の駆動遊星歯車41が、図6において、時計方向へ回転(公転)しながら反時計方向へ回転(自転)する。これに伴い、3個の動力伝動軸37とこれに設けられた3個の従動遊星歯車43も図6の時計方向(図2の反時計方向)へ回転(公転)しながら図6の反時計方向(図2の時計方向)へ回転(自転)する。そうすると、これら3個の従動遊星歯車43にかみ合う3個の出力歯車45、即ち、3個の削りローラ13が、図2において、反時計方向へ回転(公転)しながら、同方向(反時計方向)へその軸線を中心に同一回転速度で回転(自転)する。
【0021】
上記内歯歯車33(内歯33a)の歯数をZa、駆動遊星歯車41の歯数をZb、従動遊星歯車43の歯数をZc、出力歯車45の歯数をZdとし、保持枠11の回転数をMrpm(毎分回転数)とすると、各削りローラ13の回転数(自公転数)NrpmはM(ZaZc+ZbZd)/(ZbZd)で算出される。駆動遊星歯車41の歯数Zbと従動遊星歯車43の歯数Zcを同数とすると、前記回転数NrpmはM(Za+Zd)/Zdになる。
【0022】
前記削りローラ駆動手段17は遊星歯車伝動機構31を主体とした構成のものに限定されない。例えば、保持枠11に各削りローラ13毎にこれを回転させるモータ等の駆動源を設ける構成にしてもよい。前記削りローラ駆動手段17が遊星歯車伝動機構31を有することにより、削りローラ13をケーブルAの軸線を中心に回転させながら、削りローラ13の軸線を中心に回転させる機構が簡単になり、被覆削り装置の構造をより小型化することができるので好ましい。
【0023】
削りローラ支持軸47は、図2、図3に示すように、保持枠11の前記従動ベルトプーリ27側の外側面にボルトナット51により取り付けられる削りローラホルダ49に例えばボールベアリングからなる2個の軸受53により回転自在に支持されている。削りローラ13は削りローラ支持軸47に挿入され、ナット55により締め付け固定される。なお、3個の削りローラホルダ49には、図1に示すように、保持枠11に穿設された3個の軸挿通穴11aの前部側(従動ベルトプーリ27側)に嵌着された軸受39を押えるようにそれぞれ挿入される位置決め用の円筒状のスリーブ57が挿着されている。各削りローラホルダ49は前記スリーブ57を介して保持枠11の従動ベルトプーリ27側の外側面に取り付けられる。従って、削りローラホルダ49を所定の位置に容易、且つ、正確に取り付けることができる。また、被覆削り装置を使用中に、削りローラホルダ49が位置ずれを起こさず、削りローラ13の相対位置の変動を抑える機能を有する。
【0024】
上記のように回転(自公転)する3個の削りローラ13間の中央に位置する略3角形状の隙間14(図2参照)に、対象のケーブルAが手動又は機械的手段により挿入(図1の左側から右側へ供給)され、ケーブルAの被覆が削り取られる。3角形状の隙間14の大きさはケーブルAの被覆を所定厚さ分削ることができるように予め設定されている。
【0025】
上記のような被覆削り装置の構成によると、所定間隔をおいて設けられた少なくとも3個の削りローラ13でケーブルAの被覆を同時に削るので、該被覆を比較的短い時間で削ることが可能になり、作業能率を向上させることができる。また、これら削りローラ13でケーブルAを少なくとも3方向から保持して該被覆を同時に削るので、ケーブルAの軸線と削りローラ13の回転中心間の距離が削りローラ13のケーブルAの周方向への回転に伴い変動するようなことがなく、ほぼ一定になり、ケーブルAの被覆を均等に、且つ、精度よく削ることができる。更に、削りローラ13が抑えローラを兼用するので、ケーブルAを保持する抑えローラを設けたり、被覆を短時間に削るために保持枠11及び削りローラ13の回転数を上げる必要がなく、被覆削り装置の構造を小型化し、且つ、製造、販売コストを安くすることができる。
【0026】
図1において、59は前記3個の削りローラ13の前方位置にあって、ケーブルAの軸線上に設けられた円形筒状のケーブル挿入ガイドで、スタンド61により支持固定される。このケーブル挿入ガイド59により、被覆が削られる前のケーブルAを挿入案内し、3個の削りローラ13間の略3角形状の隙間14に誘導する機能を有する。また、63は削りローラ13の後方位置にあって、円筒状の保持枠11の回転中心部に形成された中空穴11bを貫通するようにケーブルAの軸線上に設けられた円形筒状のケーブル支持ガイドで、その後部がスタンド65により支持固定される。このケーブル支持ガイド63により、被覆が削られた後のケーブルAの横振れ、屈曲を防止する機能を有する。なお、ケーブル支持ガイド63内に予めストッパ部材67を挿入量が調整し得るように挿着しておくと、ケーブルAの被覆を削る長さの調整が容易になるので好ましい。
【0027】
上記のようなケーブル挿入ガイド59及びケーブル支持ガイド63が設けられていると、ケーブルAの被覆を削る際、該ケーブルAを少なくとも3個の削りローラ13とケーブル挿入ガイド59及びケーブル支持ガイドとで支持するので、ケーブルAをより安定して保持することが可能になり、ケーブルAの被覆をより精度よく削ることができる。
【0028】
次に上記装置の使用方法を説明すると、先ず保持枠駆動手段15の保持枠駆動モータ23を駆動させ、保持枠11をケーブルAの軸線を中心に所定の回転速度で例えば図2の反時計方向へ回転させ、前記したように削りローラ駆動手段17の遊星歯車伝動機構31により、3個の削りローラ13を図2の反時計方向へ同一回転速度で回転(公転)させながら、削りローラ13の軸線を中心に回転(自転)させる。
【0029】
次に、ケーブルAの端末をケーブル挿入ガイド59に奥まで挿入し、更に、ケーブルAの端末の先端を前記3個の削りローラ13間の中央に位置する略3角形状の隙間14に挿入し、回転する削りローラ13の外周面に接触させ、ケーブルAの外周面の被覆を所定厚さにわたり削りながら、徐々に奥側へ移動させ、被覆の削られたケーブルAをケーブル支持ガイド63に挿入して支持する。そして、ケーブルAの被覆が所定長さまで削り取られたときに、ケーブルAの被覆の削り作業を終了し、ケーブルAを被覆削り装置のケーブル挿入ガイド59から引き抜き、保持枠駆動手段15の保持枠駆動モータ23の駆動を停止する。なお、ケーブルAの削り作業を比較的短い時間をおいて繰り返し行う場合、1本のケーブルAの削り作業が終了するたびに、保持枠駆動手段15の保持枠駆動モータ23の駆動を停止するのは非能率的であり、全作業が終了するまで装置を運転状態にしておくことが望ましい。
【0030】
【発明の効果】
以上述べたように、本発明の請求項1に記載されたケーブルの被覆削り装置によると、所定間隔をおいて設けられた少なくとも3個の削りローラでケーブルの被覆を同時に削るので、該被覆を比較的短い時間で削ることが可能になり、作業能率を向上させることができる。また、これら削りローラでケーブルを少なくとも3方向から保持して該被覆を同時に削るので、ケーブルの軸線と削りローラの回転中心間の距離が削りローラのケーブルの周方向への回転に伴い変動するようなことがなく、ほぼ一定になり、ケーブルの被覆を均等に、且つ、精度よく削ることができる。更に、削りローラが抑えローラを兼用するので、ケーブルを保持する抑えローラを設けたり、被覆を短時間に削るために保持枠及び削りローラの回転数を上げたり、これに伴い、保持枠駆動手段及び削りローラ駆動手段の動力を増大させたりする必要がなく、被覆削り装置の構造を小型化し、且つ、製造、販売コストを安くすることができる。
【0031】
本発明の請求項2に記載されたケーブルの被覆削り装置によると、削りローラ駆動手段が遊星歯車伝動機構を有するので、削りローラをケーブルの軸線を中心に回転させながら、削りローラの軸線を中心に回転させる機構が簡単になり、被覆削り装置の構造をより小型化することができる。
【0032】
本発明の請求項3に記載されたケーブルの被覆削り装置によると、ケーブルの被覆を削る際、該ケーブルを少なくとも3個の削りローラとケーブル挿入ガイド及びケーブル支持ガイドとで支持することになるので、ケーブルをより安定して保持することが可能になり、ケーブルの被覆をより精度よく削ることができる。
【図面の簡単な説明】
【図1】本発明の一実施形態を示す正面断面図である。
【図2】図1のX−X線矢視図(ケーブル挿入ガイドを省略)である。
【図3】図2のY−Y線矢視拡大図である。
【図4】図1の右側面縮小概略図である。
【図5】図1の平面縮小概略図である。
【図6】図1の左側面縮小概略図(ケーブル支持ガイド、そのスタンドを省略)である。
【図7】従来のケーブルの被覆削り装置を示すもので、(a)は概要図、(b)は(a)のZ−Z線矢視図である。
【符号の説明】
11 保持枠
11a 軸挿通穴
11b 中空穴
13 削りローラ
14 3角形状の隙間
15 保持枠駆動手段
17 削りローラ駆動手段
18 ベース
19 固定フレーム
21 軸受
23 保持枠駆動モータ
23a 出力軸
25 駆動ベルトプーリ
27 従動ベルトプーリ
29 伝動ベルト
31 遊星歯車伝動機構
33 内歯歯車
33a 内歯
34 軸受ホルダ
35 固定ボルト
37 動力伝動軸
39 軸受
41 駆動遊星歯車
43 従動遊星歯車
45 出力歯車
47 削りローラ支持軸
49 削りローラホルダ
51 ボルトナット
53 軸受
55 ナット
57 スリーブ
59 ケーブル挿入ガイド
61 スタンド
63 ケーブル支持ガイド
65 スタンド
67 ストッパ部材
A ケーブル
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of connecting a power cable, a communication cable (including an optical cable), and an insulated wire (hereinafter, referred to as a cable), etc., in which the coating of the cable (including the jacket) is cut (including the case of stripping). It relates to a shaving device.
[0002]
[Prior art]
Conventionally, the work of shaving the coating of the cable was performed manually using glass fragments, knives, sandpaper, and the like.However, in addition to requiring skill, the workability was poor, and various devices and tools were used instead of manual work. Developed and put into practical use. As an example, as shown in FIGS. 7A and 7B, the holding frame 1 which is arranged concentrically with the cable A to be shaved and is provided rotatably about the axis of the cable A in the radial direction. On one side, two holding rollers 2 for holding the cable A at a predetermined interval in the circumferential direction are rotatably provided, and on the other side of the holding frame 1 in the radial direction, the holding rollers 2 are arranged so as to sandwich the cable A therebetween. 2, a single scraping roller 3 having a plurality of spiral blades 3a is rotatably provided so as to contact the outer peripheral surface of the cable A, and the holding frame 1 is rotated by holding frame driving means (not shown). There is a configuration in which the coating of the cable A is cut by rotating the cutting roller 3 by a cutting roller driving unit (not shown) while the cutting is being performed (see Patent Document 1).
[0003]
[Patent Document 1]
Full-text specification of Japanese Utility Model Application Laid-Open No. 6-70413 (paragraph numbers 0002 to 0005 in the detailed description of the invention and FIGS. 5 and 6)
[0004]
[Problems to be solved by the invention]
However, in such a coating shaving apparatus, only one shaving roller 3 is involved in shaving the coating of the cable A, and the other two pressing rollers 2 as the other rollers are not involved in shaving. Therefore, there is a problem that it takes time to remove the coating of the cable A, and the working efficiency is reduced. Such a problem can be solved by increasing the number of rotations of the holding frame 1 and the shaving roller 3. However, there is a new problem that the power of the holding frame driving means and the shaving roller driving means is increased, the apparatus becomes large, and the cost is increased. Occurs. Furthermore, the distance between the axis of the cable A and the center of rotation of the shaving roller 3 is likely to fluctuate with the rotation of the shaving roller 3 in the circumferential direction of the cable A, so that the coating of the cable A can be shaved uniformly and accurately. There is a problem that is difficult.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive cable sheathing apparatus which can cut a cable jacket with high accuracy and in a relatively short period of time and which has a small structure.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 of the present invention is a cable sheath cutting device for cutting a cable sheath, which is arranged concentrically with the cable and is rotatable about an axis of the cable. A holding frame provided on the holding frame, at least three shaving rollers that are rotatably provided at predetermined intervals in the circumferential direction of the holding frame and that rotate while contacting the outer peripheral surface of the cable to cut the coating of the cable; The apparatus comprises a holding frame driving means for rotating the holding frame about the axis of the cable and a cutting roller driving means for rotating the cutting roller about the axis.
[0007]
According to such a configuration, the coating of the cable is simultaneously cut by at least three cutting rollers provided at a predetermined interval, so that the coating can be cut in a relatively short time, and the work efficiency is improved. be able to.
[0008]
In addition, since the cable is held by the scraping rollers in at least three directions and the coating is cut simultaneously, the distance between the axis of the cable and the rotation center of the cutting roller varies with the rotation of the cutting roller in the circumferential direction of the cable. It is almost constant, and the covering of the cable can be evenly and accurately cut.
[0009]
Further, since the shaving roller also serves as a holding roller, a holding roller for holding the cable is provided, and the number of rotations of the holding frame and the shaving roller is increased in order to cut the coating in a short time. Further, it is not necessary to increase the power of the scraping roller driving means, so that the structure of the coating and shaving apparatus can be reduced in size, and the manufacturing and selling costs can be reduced.
[0010]
According to a second aspect of the present invention, in the cable sheathing apparatus according to the first aspect, the cutting roller driving means has a planetary gear transmission mechanism.
[0011]
According to such a configuration, a mechanism for rotating the cutting roller about the axis of the cutting roller while rotating the cutting roller about the axis of the cable is simplified, and the structure of the coating cutting apparatus can be further miniaturized.
[0012]
According to a third aspect of the present invention, in the cable sheathing apparatus according to the first or second aspect, a tubular cable insertion guide is provided at a front position of the cutting roller, and a rear position of the cutting roller. And a cylindrical cable supporting guide is provided on the axis of the cable so as to penetrate the holding frame.
[0013]
According to such a configuration, when the covering of the cable is shaved, the cable is supported by at least three shaving rollers, the cable insertion guide, and the cable support guide, so that the cable can be more stably held. In addition, the sheath of the cable can be more accurately removed.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 6 show an example of the present invention which is used for connecting an optical connector to a cable A composed of an optical cable, for cutting the outer peripheral portion of the coating expanded by inserting a backing sleeve to the original coating outer diameter. 1 shows an embodiment of a coating shaving apparatus.
[0015]
This device is provided concentrically with the cable A, is provided with a holding frame 11 provided rotatably about the axis of the cable A, and is provided on the holding frame 11 rotatably at predetermined intervals in the circumferential direction thereof, Three shaving rollers 13 that rotate while contacting the outer peripheral surface of the cable A to cut the coating of the cable A, holding frame driving means 15 that rotates the holding frame 11 about the axis of the cable A, and a shaving roller 13. And a shaving roller driving means 17 for rotating about the axis.
[0016]
The holding frame 11 is formed in a cylindrical shape, and is mounted on a square block-shaped fixed frame 19 provided on a base 18, for example, two bearings formed of, for example, ball bearings, which are fitted back and forth along the axial direction of the cable A. The cable 21 is provided concentrically with the cable A and is provided rotatable about the axis of the cable A.
[0017]
The shaving roller 13 is, as shown in FIGS. 1 to 3, formed from a grinding wheel formed by combining diamond or other abrasive grains with a resin or other binder such as phenol or polyimide to form a disk shape. Become. The shaving roller 13 includes a milling (milling) cutter having a plurality of spiral blades or straight blades 3a on the outer peripheral surface of the roller base, and a brush having a large number of hard metal fine wires protruding from the outer peripheral surface of the roller body. Various materials such as those obtained by applying or sticking an abrasive or sandpaper on the outer peripheral surface of the roller base can be applied. As shown in FIG. 2, the three scraping rollers 13 are provided rotatably at equal intervals in the circumferential direction at 120 degrees around the axis of the cable A. The scraping rollers 13 are preferably provided at equal intervals in the circumferential direction, but are not limited to this. Although the number is not limited as long as it is three or more, three or four are preferable in consideration of stable holding of the cable and simplification and miniaturization of the device structure.
[0018]
As shown in FIGS. 1, 4 and 5, the holding frame driving means 15 includes a holding frame driving motor 23 disposed on the fixed frame 19, a driving belt pulley 25 provided on an output shaft 23a thereof, A driven belt pulley 27 provided integrally with the holding frame 11 at a front portion (the right side in FIG. 1) of the frame 11, and a transmission belt 29 having a substantially V-shaped cross section stretched between the driving belt pulley 25 and the driven belt pulley 27. By driving the holding frame drive motor 23, the power is transmitted to the holding frame 11 via the driving belt pulley 25, the transmission belt 29, and the driven belt pulley 27, and the holding frame 11 is moved along the axis of the cable A. It is configured to be rotatable about the center. The holding frame driving means 15 may be a chain transmission means, a gear transmission means, a fluid pressure transmission means, or a composite type combining these transmission means in addition to the belt transmission means.
[0019]
As shown in FIGS. 1 to 3, the scraping roller driving unit 17 is configured by combining a planetary gear transmission mechanism 31 and a holding frame driving motor 23 of the holding frame driving unit 16 which is a power source for driving the planetary gear transmission mechanism 31. The planetary gear transmission mechanism 31 includes a single internal gear 33 attached to a bearing holder 34 attached to a rear portion (the left side in FIG. 1) of the holding frame 11 with a fixing bolt 35 and a cable provided in the holding frame 11. It is rotatably supported by two bearings 39 composed of, for example, ball bearings fitted around three shaft insertion holes 11a drilled at equal intervals in the circumferential direction at 120 degrees around the axis of A. The three power transmission shafts 37 are provided at the rear part (the left side in FIG. 1) of each power transmission shaft 37 and mesh with the internal teeth 33a (see FIGS. 1 and 6) of the internal gear 33 to drive the holding frame. Three driving planetary gears 41 driven and rotated by a circumferential movement of a power transmission shaft 37 supported by the holding frame 11 rotated by the driven belt pulley 27 of the means 15, and a front portion of each power transmission shaft 37 (see FIG. 1) (the right side of 1) A planetary gear 43, consisting of each driven engagement with the planetary teeth 43, cutting roller 13 three output gear 45 provided on the cutting roller support shaft 47 for supporting (see FIG. 3).
[0020]
Then, the holding frame driving motor 23 of the holding frame driving means 15 is driven to move the driven belt pulley 27 and the holding frame 11 in a predetermined direction around the axis of the cable A, for example, a counterclockwise direction in FIG. 6), the three driving planetary gears 41 provided on the power transmission shaft 37 which moves in the circumferential direction with the rotation of the holding frame 11 and mesh with the internal gear 33 rotate clockwise in FIG. Rotate (rotate) counterclockwise while (orbiting). Accordingly, the three power transmission shafts 37 and the three driven planetary gears 43 provided thereon are also rotated (revolved) clockwise in FIG. 6 (counterclockwise in FIG. 2) and counterclockwise in FIG. It rotates (rotates) in the direction (clockwise in FIG. 2). Then, the three output gears 45 meshing with the three driven planetary gears 43, that is, the three scraping rollers 13, rotate (revolve) in the counterclockwise direction in FIG. ) Rotate (rotate) at the same rotational speed around the umbilical axis.
[0021]
The number of teeth of the internal gear 33 (internal teeth 33a) is Za, the number of teeth of the driving planetary gear 41 is Zb, the number of teeth of the driven planetary gear 43 is Zc, the number of teeth of the output gear 45 is Zd, and Assuming that the number of revolutions is Mrpm (number of revolutions per minute), the number of revolutions (number of revolutions) Nrpm of each cutting roller 13 is calculated by M (ZaZc + ZbZd) / (ZbZd). Assuming that the number of teeth Zb of the driving planetary gear 41 and the number of teeth Zc of the driven planetary gear 43 are the same, the rotation speed Nrpm is M (Za + Zd) / Zd.
[0022]
The scraping roller driving means 17 is not limited to the configuration mainly including the planetary gear transmission mechanism 31. For example, the holding frame 11 may be provided with a driving source such as a motor for rotating each of the cutting rollers 13 for each of the cutting rollers 13. Since the cutting roller driving means 17 has the planetary gear transmission mechanism 31, a mechanism for rotating the cutting roller 13 about the axis of the cable A while rotating the cutting roller 13 about the axis of the cable A is simplified, and the coating is cut. This is preferable because the structure of the device can be further reduced.
[0023]
As shown in FIGS. 2 and 3, the shaving roller support shaft 47 is formed of two ball bearings on a shaving roller holder 49 attached to the outer surface of the holding frame 11 on the driven belt pulley 27 side by a bolt nut 51. It is rotatably supported by a bearing 53. The shaving roller 13 is inserted into the shaving roller support shaft 47 and is fastened and fixed by a nut 55. As shown in FIG. 1, the three shaving roller holders 49 are fitted to the front side (the driven belt pulley 27 side) of the three shaft insertion holes 11 a formed in the holding frame 11. Cylindrical sleeves 57 for positioning, which are inserted so as to press the bearings 39, are inserted. Each scraping roller holder 49 is attached to the outer surface of the holding frame 11 on the driven belt pulley 27 side via the sleeve 57. Therefore, the scraping roller holder 49 can be easily and accurately attached to a predetermined position. Further, it has a function of preventing the shaving roller holder 49 from being displaced during use of the coating shaving apparatus and suppressing a change in the relative position of the shaving roller 13.
[0024]
The target cable A is manually or mechanically inserted into the substantially triangular gap 14 (see FIG. 2) located at the center between the three cutting rollers 13 that rotate (revolve) as described above (see FIG. 2). 1 is supplied from the left side to the right side), and the coating of the cable A is removed. The size of the triangular gap 14 is set in advance so that the coating of the cable A can be cut by a predetermined thickness.
[0025]
According to the configuration of the coating shaving device as described above, since the coating of the cable A is simultaneously cut by the at least three shaving rollers 13 provided at a predetermined interval, the coating can be cut in a relatively short time. Thus, work efficiency can be improved. Further, since the cable A is held in at least three directions by the shaving rollers 13 and the coating is shaved at the same time, the distance between the axis of the cable A and the rotation center of the shaving roller 13 is reduced in the circumferential direction of the cable A of the shaving roller 13. It does not fluctuate with rotation and becomes almost constant, so that the coating of the cable A can be uniformly and accurately cut. Further, since the shaving roller 13 also serves as a holding roller, there is no need to provide a holding roller for holding the cable A or to increase the number of revolutions of the holding frame 11 and the shaving roller 13 to cut the coating in a short time. The structure of the device can be reduced in size, and the manufacturing and selling costs can be reduced.
[0026]
In FIG. 1, reference numeral 59 denotes a circular cylindrical cable insertion guide provided on the axis of the cable A at a position in front of the three scraping rollers 13 and supported and fixed by a stand 61. The cable insertion guide 59 has a function of inserting and guiding the cable A before the coating is shaved, and guiding the cable A into the substantially triangular gap 14 between the three shaving rollers 13. A circular cylindrical cable 63 is provided on the axis of the cable A so as to pass through a hollow hole 11b formed at the center of rotation of the cylindrical holding frame 11 at a position behind the shaving roller 13. With the support guide, the rear portion is supported and fixed by the stand 65. The cable support guide 63 has a function of preventing the cable A after the coating has been shaved from swaying and bending. Note that it is preferable to insert the stopper member 67 into the cable support guide 63 in advance so that the insertion amount can be adjusted, because the length of the covering of the cable A can be easily adjusted.
[0027]
When the cable insertion guide 59 and the cable support guide 63 as described above are provided, when the coating of the cable A is cut, the cable A is separated by at least three cutting rollers 13 and the cable insertion guide 59 and the cable support guide. Since the cable A is supported, the cable A can be held more stably, and the covering of the cable A can be more accurately removed.
[0028]
Next, a method of using the above-described apparatus will be described. First, the holding frame driving motor 23 of the holding frame driving means 15 is driven, and the holding frame 11 is rotated at a predetermined rotational speed around the axis of the cable A, for example, in the counterclockwise direction in FIG. 2 and the planetary gear transmission mechanism 31 of the cutting roller driving means 17 rotates the three cutting rollers 13 counterclockwise in FIG. Rotate (rotate) about the axis.
[0029]
Next, the terminal of the cable A is inserted into the cable insertion guide 59 as far as it will go, and the end of the terminal of the cable A is further inserted into the substantially triangular gap 14 located at the center between the three scraping rollers 13. Then, the outer peripheral surface of the cable A is brought into contact with the outer peripheral surface of the rotating scraping roller 13, and the outer peripheral surface of the cable A is gradually moved to the rear side while the outer peripheral surface of the cable A is being scraped over a predetermined thickness. And support. When the coating of the cable A is cut off to a predetermined length, the operation of cutting the coating of the cable A is completed, the cable A is pulled out from the cable insertion guide 59 of the coating cutting device, and the holding frame driving means 15 is driven. The driving of the motor 23 is stopped. When the cutting operation of the cable A is repeatedly performed after a relatively short time, the driving of the holding frame driving motor 23 of the holding frame driving unit 15 is stopped every time the cutting operation of one cable A is completed. Is inefficient and it is desirable to keep the device running until all work is complete.
[0030]
【The invention's effect】
As described above, according to the apparatus for stripping a cable according to claim 1 of the present invention, the coating of the cable is simultaneously cut by at least three cutting rollers provided at a predetermined interval. Cutting can be performed in a relatively short time, and work efficiency can be improved. In addition, since the cable is held by the scraping rollers in at least three directions and the coating is cut simultaneously, the distance between the axis of the cable and the rotation center of the cutting roller varies with the rotation of the cutting roller in the circumferential direction of the cable. It is almost constant, and the covering of the cable can be evenly and accurately cut. Further, since the shaving roller also serves as a holding roller, a holding roller for holding the cable is provided, and the number of rotations of the holding frame and the shaving roller is increased in order to cut the coating in a short time. Further, it is not necessary to increase the power of the scraping roller driving means, so that the structure of the coating and shaving apparatus can be reduced in size, and the manufacturing and selling costs can be reduced.
[0031]
According to the apparatus for cutting and covering a cable according to the second aspect of the present invention, since the cutting roller driving means has a planetary gear transmission mechanism, the cutting roller is rotated about the cable axis while the cutting roller is rotated about the axis of the cable. The mechanism for rotating the cover in a simple manner can be simplified, and the structure of the coating shaving apparatus can be further downsized.
[0032]
According to the apparatus for stripping a cable according to the third aspect of the present invention, when stripping the cable, the cable is supported by at least three cutting rollers, a cable insertion guide, and a cable support guide. Thus, the cable can be held more stably, and the covering of the cable can be more accurately removed.
[Brief description of the drawings]
FIG. 1 is a front sectional view showing an embodiment of the present invention.
FIG. 2 is a view taken along line XX of FIG. 1 (cable insertion guide is omitted).
FIG. 3 is an enlarged view taken along line YY of FIG. 2;
FIG. 4 is a schematic diagram of the right side reduced in FIG. 1;
FIG. 5 is a schematic plan view reduction of FIG. 1;
FIG. 6 is a reduced schematic side view of the left side of FIG. 1 (cable support guide and its stand are omitted).
7A and 7B show a conventional cable shaving apparatus, in which FIG. 7A is a schematic view and FIG. 7B is a view taken along line ZZ of FIG. 7A.
[Explanation of symbols]
Reference Signs List 11 holding frame 11a shaft insertion hole 11b hollow hole 13 shaving roller 14 triangular gap 15 holding frame driving means 17 shaving roller driving means 18 base 19 fixed frame 21 bearing 23 holding frame drive motor 23a output shaft 25 drive belt pulley 27 driven Belt pulley 29 Transmission belt 31 Planetary gear transmission mechanism 33 Internal gear 33a Internal teeth 34 Bearing holder 35 Fixing bolt 37 Power transmission shaft 39 Bearing 41 Drive planet gear 43 Driven planet gear 45 Output gear 47 Cutting roller support shaft 49 Cutting roller holder 51 Bolt / nut 53 Bearing 55 Nut 57 Sleeve 59 Cable insertion guide 61 Stand 63 Cable support guide 65 Stand 67 Stopper member A Cable

Claims (3)

ケーブルの被覆を削るためのケーブルの被覆削り装置において、ケーブルと同心的に配置され、ケーブルの軸線を中心に回転可能に設けられた保持枠と、保持枠にその周方向へ所定間隔をおいて回転自在に設けられ、ケーブルの外周面に接触させながら回転させてケーブルの被覆を削る少なくとも3個の削りローラと、保持枠をケーブルの軸線を中心に回転させる保持枠駆動手段と、削りローラをその軸線を中心に回転させる削りローラ駆動手段とを備えることを特徴とするケーブルの被覆削り装置。In a cable sheathing and shaving apparatus for shaving a sheath of a cable, a holding frame arranged concentrically with the cable and rotatably provided around an axis of the cable, and a predetermined interval in a circumferential direction of the holding frame on the holding frame. At least three scraping rollers that are rotatably provided and rotate while contacting the outer peripheral surface of the cable to scrape the coating of the cable, holding frame driving means for rotating the holding frame around the cable axis, and a scraping roller. And a cutting roller driving means for rotating the shaft about its axis. 前記削りローラ駆動手段が遊星歯車伝動機構を有することを特徴とする請求項1記載のケーブルの被覆削り装置。2. The apparatus according to claim 1, wherein said cutting roller driving means includes a planetary gear transmission mechanism. 前記削りローラの前方位置に筒状のケーブル挿入ガイドと、前記削りローラの後方位置に前記保持枠を貫通するように筒状のケーブル支持ガイドがそれぞれケーブルの軸線上に設けられることを特徴とする請求項1又は2記載のケーブルの被覆削り装置。A cylindrical cable insertion guide is provided at a position in front of the shaving roller, and a cylindrical cable support guide is provided on an axis of the cable so as to penetrate the holding frame at a position behind the shaving roller. An apparatus for stripping a cable according to claim 1 or 2.
JP2003161242A 2003-06-05 2003-06-05 Covering cutting device for cable Pending JP2004364439A (en)

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Publication number Priority date Publication date Assignee Title
JP2015177689A (en) * 2014-03-17 2015-10-05 中国電力株式会社 Adaptor for indirect hot line work
CN108520805A (en) * 2018-05-31 2018-09-11 国家电网公司 Holotype electric power electric wire cutting machine
CN111416306A (en) * 2020-04-03 2020-07-14 国网浙江嘉善县供电有限公司 Precise fixed-length rotary stripping and cutting system for cables
CN112872928A (en) * 2021-01-12 2021-06-01 西安万翔航空科技有限公司 Cable grinding device and automatic grinding equipment
CN114123048A (en) * 2021-11-10 2022-03-01 国网辽宁省电力有限公司铁岭供电公司 Cable crust stripping off device for electric power construction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015177689A (en) * 2014-03-17 2015-10-05 中国電力株式会社 Adaptor for indirect hot line work
CN108520805A (en) * 2018-05-31 2018-09-11 国家电网公司 Holotype electric power electric wire cutting machine
CN108520805B (en) * 2018-05-31 2023-09-05 国家电网公司 Full-size electric power cable cutting machine
CN111416306A (en) * 2020-04-03 2020-07-14 国网浙江嘉善县供电有限公司 Precise fixed-length rotary stripping and cutting system for cables
CN112872928A (en) * 2021-01-12 2021-06-01 西安万翔航空科技有限公司 Cable grinding device and automatic grinding equipment
CN114123048A (en) * 2021-11-10 2022-03-01 国网辽宁省电力有限公司铁岭供电公司 Cable crust stripping off device for electric power construction
CN114123048B (en) * 2021-11-10 2023-09-12 国网辽宁省电力有限公司铁岭供电公司 Cable crust stripping off device for electric power construction

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