JP2005005375A

JP2005005375A - Coil bobbin, coil device, winding device for coil bobbin, and method of winding coil

Info

Publication number: JP2005005375A
Application number: JP2003165060A
Authority: JP
Inventors: Kenji Kasai; 健二笠井; Hatakazu Shirakawa; 二十一白川
Original assignee: Shinsei Industries Co Ltd; Shinsei Kogyo KK
Current assignee: Shinsei Industries Co Ltd; Shinsei Kogyo KK
Priority date: 2003-06-10
Filing date: 2003-06-10
Publication date: 2005-01-06

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil bobbin that can improve the shape maintainability of the side face of a coil wound in a plurality of layers, and to provide a coil device using the coil bobbin and a winding device for coil bobbin which is suitable for the coil bobbin. <P>SOLUTION: At the time of winding a coil around the coil bobbin 1, the coil is biased outward in the axial direction, or the inward tilting of the coil in the axial direction is prevented by pushing the flange section 12 of the bobbin 1 in a guide block 8. Since the flange 12 can be prevented from being caught by a resin-coated conductor 2 in this way, the manufacturing yield of the coil device can be improved significantly. In addition, it also becomes possible to perform winding by using a coil bobbin 1 the flange 12 of which is previously tilted inward in the axial direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、樹脂被覆導線や釣り糸などを巻装するための鍔付きのコイルボビン（単にコイルボビンと呼ぶ）、このコイルボビンに線又は糸を巻き付けたコイル装置、コイルボビンに線又は糸を巻き付けるコイルボビン巻線装置及びコイル巻線方法に関する。
【０００２】
【従来の技術】
円筒部とこの円筒部の両端外周から径方向外側に延在する一対の鍔部とを有するコイルボビンを、線又は糸の巻装体すなわちコイルを製造するために採用することは、巻線作業の簡素化等の点でほとんど必須となっている。
【０００３】
従来のコイルボビン巻線装置の典型例を図６、図７に示す。１は回転する樹脂成形品であるコイルボビン、２はこのコイルボビン１に巻回される樹脂被覆導線、３は樹脂被覆導線をガイドする巻線ノズルである。コイルボビン１への樹脂被覆導線２を巻装するには、コイルボビン１を回転させながらコイルボビン１の円筒部に樹脂被覆導線２を螺旋状に積層巻装してなされる。この種のコイルボビンについては、たとえば特許文献１などにより広く知られている。
【０００４】
従来のコイルボビンにおける鍔部の役割は、コイルボビンの円筒部上にコイルを巻重ねる際に、各層の線又は糸が軸方向にはみ出すのを防止する点、積層されたコイルの側面を機械的あるいは電気的に保護するとともにコイルが軸方向に崩れるのを防止する点などにある。
【０００５】
【特許文献１】特開平１０−１０９３７４号公報
【０００６】
【発明が解決しようとする課題】
しかしながら、上記した従来のコイルボビンでは、線又は糸をコイルボビンの鍔部に略接して巻く場合に、コイルボビンの円筒部の端からコイル送り装置側へ延在する線又は糸がコイルボビンの鍔部の外縁に引っかかり易いという問題があった。コイルボビン１の鍔部１２が樹脂被覆導線２に引っかかって、コイルボビン１の円筒部１１に巻き込まれる状態を示す。この状態を図８に示す。このように線又は糸が鍔部の外縁に引っかかると、線又は糸が断線したり、線又は糸が鍔部の外縁上に乗り上げたり、線又は糸により鍔部がコイル側に倒れこんでその上に線又は糸が巻装されたりするという巻線不良事故が発生してしまう。
【０００７】
この問題を解決するには、鍔部の少なくとも径方向外側の部分をコイルボビンの軸方向外側へわずかに傾斜させておくことが考えられる。しかしながら、このようの対策は、鍔部が巻線後のコイルの側面から離れてしまってコイルの側面形状を維持する機能が悪化したり、全体体格が鍔部の傾斜分だけ軸方向に増加してしまうという不具合を発生してしまう。また、鍔部とコイル側面との間に隙間ができて水分や粉末などの夾雑物が侵入しやすくなってしまう。
【０００８】
同様に、巻線作業時にコイルボビンの鍔部が軸方向に揺れたり、鍔部の寸法公差ばらつきにより、鍔部近傍に巻線される際に線又は糸が鍔部に引っかかるという問題があり、これを解決するために、鍔部の厚さを増加し、コイルボビン成形精度を向上するという対策が考えられる。しかしながら、このような対策は、製造コストの増加や体格の増大を招くという不具合を発生してしまう。
【０００９】
本発明は上記問題点に鑑みなされたものであり、巻き重ねられたコイルの側面の形状維持性に優れるコイルボビン、このコイルボビンを用いたコイル装置、このコイルボビンに好適なコイルボビン巻線装置を提供することをその目的としている。
【００１０】
【課題を解決するための手段】
請求項１記載の本発明のコイルボビンは、円筒部と、薄肉に形成されて前記円筒部の両端外周から径方向外側に延在する一対の鍔部とを有する樹脂成形品からなるコイルボビンにおいて、前記鍔部が、巻線後に軸方向外側へ弾性変形可能に、非巻線状態において軸方向内側に所定角度倒れていることを特徴としている。
【００１１】
すなわち、この発明のコイルボビンの鍔部は、巻線しない状態において従来常識に反して円筒部から径方向に離れるにつれて軸方向内側に倒れる形状を有しているので、巻線後において円筒部上に巻かれた積層巻線により、鍔部は軸方向外側へ弾性変形され、鍔部は軸方向内側すなわち積層巻線の側面を弾性付勢する。
このため、コイルボビンの円筒部上に形成されたコイル（積層巻線）の側面が崩れたりすることがなく、また、鍔部の内側面と積層巻線の側面との間に隙間ができて無用な夾雑物が入り込んだりすることがない。また、多少成形精度が悪くても鍔部が軸方向外側に倒れることがないので、線又は糸をコイルボビンの円筒部に巻き付ける際にコイルすなわち積層巻線の側面が崩れることも良好に抑止することができる。
【００１２】
請求項２に記載したこの発明のコイルボビンの好適態様において、前記鍔部は、非巻線状態において軸方向内側に３〜１５度だけ倒れているので、上記効果を良好に奏することができる。非巻線状態での鍔部の傾斜が３度未満の場合は、上記効果が不十分となり、１５度を超えると、後述する手段より鍔部の傾斜を一時的に矯正するのが難しくなる。
【００１３】
請求項３に記載したこの発明のコイル装置は、上記コイルボビンに線又は糸を巻装したものであって、円筒部と、薄肉に形成されて前記円筒部の両端外周から径方向外側に延在する一対の鍔部とを有する樹脂成形品からなるコイルボビンと、前記円筒部に巻装された巻線とを備えるコイル装置であって、前記鍔部が、前記円筒部に巻装された巻線を軸方向に弾性付勢していることを特徴としている。
【００１４】
このコイル装置すなわちコイルボビン巻装コイルは、上記説明した鍔部が巻装前に軸方向内側に傾斜したコイルボビンを用いているので、上記した本発明のコイルボビンの効果を奏することができる。
【００１５】
請求項４に記載したこの発明のコイルボビン巻線装置は、円筒部と、薄肉に形成されて前記円筒部の両端外周から径方向外側に延在する一対の鍔部とを有する樹脂成形品からなるコイルボビンを回転させるボビン駆動部と、線又は糸が前記円筒部に螺旋状に巻き重ねられるように前記線又は糸を前記円筒部に供給するライン供給部とを有するコイルボビン巻線装置において、
前記ライン供給部から前記円筒部へ伸びて前記鍔部に近接する前記線又は糸が前記鍔部に接触して前記鍔部を前記円筒部上に巻き倒すのを阻止する鍔部案内部材を有し、前記鍔部案内部材は、前記円筒部から径方向へ所定距離を隔てて前記一対の鍔部の間に挿入されて前記鍔部を軸方向外側へ付勢するかもしくは前記鍔部の軸方向内側への倒れを規制することにより前記一対の鍔部間の軸方向間隔を前記円筒部の巻線幅以上に確保することを特徴としている。この製造装置によれば、簡素な構造により、コイルボビンに線又は糸を巻いてコイルとすることができる。
【００１６】
すなわち、この発明のコイルボビン巻線装置は、鍔部案内部材を一対の鍔部の間に押し込むことにより、一対の鍔部をそれぞれ軸方向外側に傾ける。これにより、ライン供給部からコイルボビンの円筒部に向かう線又は糸は鍔部の外縁に引っかかることなく、この円筒部に巻重ねられる。また、線又は糸を円筒部に巻く時にのみ鍔部を軸方向外側に強制的に倒すので、巻終えた後は、鍔部は巻重ねられて積層状態となったコイルの側面を軸方向内側に付勢してその崩れを防ぐことができ、また、コイル側面と鍔部との間に隙間ができて夾雑物が入り込むのを防止することができる。また、この強制的な鍔部押し広げを利用することにより、コイルボビンの鍔部の姿勢の自由度すなわち作成精度を低下することができる。
たとえば、鍔部をある角度だけ、倒すことができる。これにより、製造公差のばらつきやボビン駆動部へのコイルボビンの取り付け精度のばらつきにより、鍔部の傾斜があらかじめ設定した角度よりずれても鍔部が軸方向外側に傾斜することを防止することができる。このような鍔部の軸方向外側への傾斜は、巻線後に鍔部とコイル側面との間に隙間が生じないために特に重要である。
【００１７】
なお、鍔部案内部材は、一対の鍔部に接する２側面をもつ一つの部材でもよく、それぞれが片方の鍔部に接する２つの部材であってもよい。鍔部案内部材と鍔部との摩擦抵抗を低減するために、鍔部案内部材の鍔部の側面に接する面は回転面としてもよい。
【００１８】
請求項５記載のこの発明のコイルボビン巻線装置の態様では、前記鍔部案内部材は、前記ライン供給部から前記円筒部へ伸びて前記鍔部に近接する前記線又は糸よりも前記円筒部の回転方向上流側に近接して配置され、前記鍔部案内部材は、前記鍔部の内側面に摺接する一対の側面を有し、前記鍔部案内部材は、前記鍔部が前記鍔部案内部材の軸方向側面から離れた後、前記線又は糸の外側を通過することができる軸方向幅を有することを特徴としている。
【００１９】
このようにすれば、鍔部は幅広の鍔部案内部材から離れて元の軸方向幅に戻る前に線又は糸の存在する位置を通過するので、線又は糸と鍔部との接触を防止することができる。
【００２０】
請求項６記載のこのコイルボビン巻線装置の態様では、前記鍔部案内部材の前記線又は糸側の周方向側面の軸方向幅は、前記一対の鍔部間の間隔よりも所定寸法だけ狭小化されていることを特徴としている。このようにすれば、鍔部が花弁状に形成されていても、鍔部案内部材に向けて接近してくる鍔部が鍔部案内部材に引っかかることがない。
【００２１】
請求項７記載のこのコイルボビン巻線装置の態様では、前記鍔部案内部材を前記一対の鍔部の間に挿入したり、前記一対の鍔部の間から離脱させたりする昇降部を有し、前記挿入時に前記鍔部に最初に近接する前記鍔部案内部材の先端部は、その後に前記鍔部に接する前記鍔部案内部材の根本部よりも狭い軸方向幅を有することを特徴としている。このようにすれば、鍔部案内部材を一対の鍔部の間に容易に挿入することができる。
【００２２】
請求項８記載のコイルボビン巻線装置を用いるコイル巻線方法では、前記ボビン駆動部に前記コイルボビンをセットし、前記鍔部案内部材を前記一対の鍔部の間に挿入し、前記ボビン駆動部を回転させて前記円筒部に前記線又は糸を巻装した後、前記ボビン駆動部を停止し、前記鍔部案内部材を前記一対の鍔部の間から離脱させ、前記コイルボビンを前記ボビン駆動部から取り外すことを特徴としている。このようにすれば、線又は糸が巻線時に鍔部案内部材に引っかかるのを確実に防止可能なコイル巻線方法を実現することができる。
【００２３】
請求項９記載のコイルボビン巻線装置は、円筒部と、薄肉に形成されて前記円筒部の両端外周から径方向外側に延在する一対の鍔部とを有する樹脂成形品からなるコイルボビンを回転させるボビン駆動部と、線又は糸が前記円筒部に螺旋状に巻き重ねられるように前記線又は糸を前記円筒部に供給するライン供給部とを有するコイルボビン巻線装置において、
前記ライン供給部から前記円筒部へ伸びて前記鍔部に近接する前記線又は糸が前記鍔部に接触して前記鍔部を前記円筒部上に巻き倒すのを阻止する鍔部案内部材を有し、前記鍔部案内部材は、前記鍔部の側面に近接して前記鍔部を軸方向外側に吸引乃至吹き飛ばして前記鍔部を軸方向外側へ付勢することにより前記一対の鍔部間の軸方向間隔を前記円筒部の巻線幅以上に確保すること特徴としている。
【００２４】
すなわち、この発明のコイルボビン巻線装置は、線又は糸が鍔部に近接する位置にて鍔部を軸方向外側へ吸引又は吹き飛ばすので、簡素な構造にて確実に線又は糸と鍔部外縁との接触を防止することができる。
【００２５】
請求項１０記載のこの発明のコイルボビン巻線装置では、前記鍔部案内部材は、前記ライン供給部から前記円筒部へ伸びて前記鍔部に近接する前記線又は糸よりも前記円筒部の回転方向上流側に近接して配置されることを特徴としている。
このようにすれば、鍔部はすくなくとも線又は糸に接近する前に軸方向外側に付勢されるので、両者の引っかかりを良好に防止することができる。
【００２６】
請求項１１記載のコイルボビン巻線装置を用いる好適なコイル巻線方法では、前記ボビン駆動部を回転させて前記円筒部に前記線又は糸を巻装する間だけ前記鍔部案内部材により前記鍔部を軸方向外側に変形させることを特徴としている。
このようにすれば、線又は糸をコイルボビンの円筒部に巻線する間だけ鍔部の流体付勢を行うので、流体エネルギーを節約することができる。
【００２７】
請求項１２記載のコイルボビン巻線装置を用いる好適なコイル巻線方法では、前記ボビン駆動部を回転させて前記円筒部に前記線又は糸を巻装する間のうち、前記線又は糸が前記鍔部に近接する間だけ、前記鍔部案内部材により前記鍔部を軸方向外側に変形させることを特徴としている。このようにすれば、線又は糸がコイルボビンの円筒部を軸方向に移動して一定時間ごとに鍔部に接近する時間帯だけ、鍔部の流体付勢を行うので、流体エネルギーを節約することができる。
【００２８】
請求項１３記載のコイルボビン巻線装置の好適態様では、前記鍔部案内部材は、前記鍔部の軸方向外側に近接して回転するフランジ鍔板部に略放射状に形成されて前記鍔部を吸引する空気流通溝からなることを特徴としている。このようにすれば、コイルボビンを挟持してコイルボビンを回転させるフランジ鍔板部に単に溝を形成するだけで発明効果を実現することができ、装置の簡素化を図ることができる。
【００２９】
請求項１４記載のコイルボビン巻線装置の好適な態様では、前記コイルボビンの鍔部は、あらかじめ軸方向内側に所定角度だけ倒れているので、製造ばらつきなどで多少鍔部の傾斜が変化しても、鍔部が軸方向外側に倒れて形成されることがないので、巻線後に鍔部とコイルの側面との間に隙間が形成されることがない。
【００３０】
なお、上記したライン供給部としてはノズル状のものの他、ボビン状、ドラム状など公知の種々の方式を採用することができる。同様に、ボビン駆動部もボビンを着脱可能に構成されてコイルボビンを回転させるものであれば、公知の種々のものを採用することができる。線又は糸としては、樹脂被覆導体線の他、釣り糸、樹脂糸なども採用可能である。
【００３１】
【実施例１】
以下、本発明の好ましい実施の形態を図１〜図３に基づいて説明する。図１はこの実施例のコイルボビン巻線装置によりコイルボビン巻線を行う状態を示す側面図、図２はその正面図、図３はＡ視平面図である。
（構成）
１はコイルボビンである。樹脂被覆導線２は、この樹脂被覆導線２があらかじめ巻回されている図略の回転ドラムから巻線ノズル３の孔３Ａを貫通してコイルボビン１の円筒部１１に導かれ、回転するコイルボビン１の円筒部１１の外周面に巻き重ねられる。コイルボビン１は、円筒部１１の軸方向両端から径方向外側へ個別に延在する一対の鍔部１２を有している。各鍔部１２は図１に示すように６枚の花弁状部分をもつ花びら状に形成されている。もちろん、用途によっては、鍔部１２は輪板状又は円盤状であってもよい。巻線ノズル３は、軸方向に一定速度で往復して、樹脂被覆導線２を円筒部１１の外周に螺旋状に順次巻き付けていく。４、５はコイルボビン１をその軸方向両側から挟圧しつつ回転する回転チャック機構であり、コイルボビン１を回転させる機構である。回転チャック機構４，５は、フランジ形状を有しており、コイルボビン１の鍔部１２に密着するフランジ鍔板部６と、このフランジ鍔板部６の中心から軸方向外側へ延在する軸部７とを有している。軸部７は、図示しない回転機構により回転され、また、図示しない軸方向進退機構により軸方向進退可能となっている。回転チャック機構４，５の代わりに、コイルボビン１にスピンドル軸を挿入するなどの他の公知のコイルボビン回転機構を採用してもよい。
【００３２】
８は、この実施例の特徴をなすガイドブロックであって、ガイドブロック８の上端は、図示しないシリンダのピストン９に固定されており、図１における上下方向に昇降する。この実施例では、ガイド装置６は、金属ブロックからなり、その軸方向幅は、コイルボビン１の一対の鍔部１２の間の間隙幅すなわち円筒部１１の軸方向長よりわずかに広く形成されている。
（動作）
上記したこの実施例のコイルボビン巻線装置の動作を以下に説明する。
【００３３】
初期状態において、ガイドブロック８は上昇位置にあり、回転チャック機構４，５は軸方向両側に避退している。この状態において、まずコイルボビン１を把持する図略の治具を駆動することにより、コイルボビン１を回転チャック機構４，５の間にセットし、回転チャック機構４，５を軸方向へ進めてコイルボビン１を挟持する。次に、樹脂被覆導線２の先端をコイルボビン１の鍔部１２の図示しない係止部に仮止めし、ガイドブロック８を一対の鍔部１２の間に降下させる。
ただし、ガイドブロック８の降下は、コイルボビン１の円筒部１１に樹脂被覆導線２を巻き終えた段階にてガイドブロック８が巻回されたコイルの外周面に接触しない範囲に規制される。次に、回転チャック機構４，５を回転し、樹脂被覆導線２をコイルボビン１の円筒部１１に巻き付けるとともに巻線ノズル３を一定速度で軸方向へ往復させて、樹脂被覆導線２を円筒部１１上に螺旋状に積層する。
巻き終えた段階にて、回転チャック機構４，５の回転を停止し、ガイドブロック８を上昇させてコイルボビン１から離脱させ、図略の切断機構により樹脂被覆導線２の末端を切断し、回転チャック機構４，５を軸方向に退行させ、コイルボビン１を下方に落下させる。上記説明したように、このコイルボビン巻線装置は従来のものに比較してガイドブロック８だけが追加された構造となっている。
（ガイドブロック８の更なる説明）
この実施例の特徴をなすガイドブロック８について更に説明する。
【００３４】
円筒部１１に面するガイドブロック８の下端面は、装置正面図である図２に示すように、下端面と側面との間の角部においてテーパが形成されている。このテーパの形成により、ガイドブロック８を容易に一対の鍔部１２の間の間隙に挿入することができる。上記テーパ部分を除くガイドブロック８の軸方向幅は、円筒部１１の軸方向長さに等しいかまたはそれより多少大きく設定されている。これにより、ガイドブロック８は鍔部１２が軸方向内側に倒れるのを阻止する。
【００３５】
また、ガイドブロック８は、図１に示すように、巻線ノズル３からコイルボビンに向かう樹脂被覆導線２に対して、コイルボビンの回転方向上流側にて樹脂被覆導線２に近接して配置されている。これにより、花弁状の鍔部１２の周方向先端部がガイドブロック８の側面から離れて樹脂被覆導線２の軸方向外側を通過する際に、花弁状の鍔部１２の周方向後端部はいまだガイドブロック８の側面に接してその軸方向内側への倒れ込みを規制されているので、花弁状の鍔部１２の剛性によりその周方向先端部も軸方向へ倒れ込んで樹脂被覆導線２に引っかかることがない。
【００３６】
更に、ガイドブロック８は、装置平面図である図３に示すように、その周方向先端面８１とガイドブロック８の側面との間の角部にテーパがもうけられている。このようにすれば、図１にしめすように花弁状に形成された鍔部１２の外端縁１２１が回転中にガイドブロック８の上記角部に引っかかるのを防止することができる。
【００３７】
【実施例２】
以下、本発明の好ましい他の実施の形態を図４に基づいて説明する。図４はこの実施例のコイルボビン巻線装置の回転チャック機構４近傍を示す部分正面断面図である。
（構成）
この実施形態のコイルボビン巻線装置は、上記した実施例１記載の装置においてガイドブロック８を省略し、その代わりに、回転チャック機構４，５のフランジ鍔板部６に空気流通溝６１、空気導入孔６２を設けた点をその特徴としている。
【００３８】
空気流通溝６１は、コイルボビン１の鍔部１２に面するフランジ鍔板部６の端面に放射状に多数形成されている。空気導入孔６２は、フランジ鍔板部６の径方向内端部に軸方向に貫通された多数の孔であり、各空気導入孔６２はフランジ鍔板部６に周方向一定ピッチで形成されて、空気導入孔６２の出口は空気流通溝６１の入り口に連通している。
（動作）
装置動作自体はガイドブロック８のそれを除いて実施例１と同じである。ただし、この実施例では、フランジ鍔板部６が空気流通溝６１、空気導入孔６２を有しているので、次の作用効果を奏する。
【００３９】
フランジ鍔板部６の回転とともに、空気流通溝６１内の空気は遠心力により径方向外側に付勢され、空気流通溝６１内に負圧が生じる。この負圧を解消するべく。空気導入孔６２から空気が導入される。空気流通溝６１に生じた負圧により、これら空気流通溝６１に近接する鍔部１２は空気流通溝６１に吸引され、その結果として鍔部１２はフランジ鍔板部６に密着する。これにより、実施例１のガイドブロック８と同様の作用効果を奏することができる。なお、フランジ鍔板部６は、回転チャック機構４，５の両方に設けられることは当然である。
（変形態様１）
上記説明した空気導入孔６２は省略可能である。すなわち、略放射方向に凹設された空気流通溝６１内の空気をその遠心力により径方向外側に押し出すだけで空気流通溝６１内は負圧となるので、空気導入孔６２は必須ではない。
（変形態様２）
上記説明した空気流通溝６１は、従来の遠心翼同様に径方向外側に向かうにつれて回転方向下流側に後退することができる。
（変形態様３）
空気流通溝６１は径方向外側に向かうにつれて周方向に幅広とすることが好適であり、周方向に隣接する空気流通溝６１、６１間の隔壁の厚さはできるだけ薄いほうが負圧による吸引効果を増大できる点で好ましい。
【００４０】
【実施例３】
以下、本発明の好ましい他の実施の形態を図５に基づいて説明する。図５はこの実施例のコイルボビン巻線装置の回転チャック機構４近傍を示す部分正面断面図である。
（構成）
この実施形態のコイルボビン巻線装置は、上記した実施例２記載の装置において更に空気吹き出しノズル１０を追加した点をその特徴としている。
（動作）
空気吹き出しノズル１０の作用を除いて、装置動作は実施例２の装置と同じである。空気吹き出しノズル１０は、コイルボビン１の回転中において鍔部１２をフランジ鍔板部６に押しつけるように空気流を吹き出し、これにより鍔部１２の軸方向内側への倒れを一層良好に防止することができる。なお、空気吹き出しノズル１０は両方の鍔部１２に吹き付けられるのは当然である。空気吹き出しノズル１０は、コイルボビン１の着脱に支障がない位置に設けることが好適であるが、コイルボビン１着脱に支障が生じないように移動可能としてもよい。空気吹き出しノズル１０は図１に示す樹脂被覆導線２の近傍少なくともその上流側において鍔部１２に高速空気流を吹き付けることが望ましいが、少なくとも鍔部１２が樹脂被覆導線２を通過する際に樹脂被覆導線２に引っかからないようにできるのであれば、空気流吹きつけ位置は変更可能である。
（変形態様１）
上記説明では、空気流通溝６１の負圧効果と空気吹き出しノズル１０の空気吹き付け効果の両方を利用したが、どちらか一方だけを用いてもよいことは当然である。
（変形態様２）
上記実施例では、空気吹き出しノズル１０はコイルボビン１の回転中はずっと空気を吹き出していたが、鍔部１２の軸方向内側への倒れが問題となるのは、円筒部１１上の軸方向端部上に樹脂被覆導線２を巻く期間、すなわち、樹脂被覆導線２が鍔部１２に接近する期間のみである。したがって、樹脂被覆導線２が鍔部１２から遠ざかる期間には空気吹き出しノズル１０からの空気吹き出しを停止して省エネルギー化を図ることができる。
【００４１】
【実施例４】
上記した各実施例を用いれば、コイルボビン１の鍔部１２が多少軸方向内側にあらかじめ倒れていた場合でも問題なく、コイルボビン巻線をおこなうことができる。この実施例はこの利点を更に活用して、コイルボビン１の鍔部１２をあらかじめ所定角度たとえば３−１５度程度だけ軸方向内側に倒しておくことをその特徴としている。
【００４２】
このようにすれば、コイルボビン巻線工程を終了して完成したコイル装置において、鍔部１２は所定の弾性付勢力により常にコイルの側面を付勢することができるので、両者の間に隙間が生じにくく、この隙間に種々の夾雑物が入り込みにくくすることができる。また、コイルボビン形状ばらつきにより鍔部１２が軸方向外側に傾斜して上記隙間が生じてしまうのも防止することができる。
【図面の簡単な説明】
【図１】実施例１のコイルボビン巻線装置によりコイルボビン巻線を行う状態を示す側面図である。
【図２】図１の装置の正面図である。
【図３】図１の装置のＡ視平面図である。
【図４】実施例２のコイルボビン巻線装置によりコイルボビン巻線を行う状態を示す側面図である。
【図５】実施例３のコイルボビン巻線装置によりコイルボビン巻線を行う状態を示す側面図である。
【図６】従来のコイルボビン巻線装置によりコイルボビン巻線を行う状態を示す側面図である。
【図７】図６の装置の正面図である。
【図８】鍔部倒れ状態を示す図６の装置の正面図である。
【符号の説明】
１コイルボビン
２樹脂被覆導線
３巻線ノズル（ライン供給部）
４回転チャック機構（ボビン駆動部）
５回転チャック機構（ボビン駆動部）
６回転チャック機構のフランジ鍔板部
７回転チャック機構の軸部
８ガイドブロック（鍔部案内部材）
９昇降シリンダのピストン
１０空気吹き出しノズル（鍔部案内部材）
１１コイルボビンの円筒部
１２コイルボビンの鍔部
６１空気流通溝（鍔部案内部材）
６２空気導入孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coil bobbin with a hook for winding a resin-coated conductive wire, a fishing line or the like (simply called a coil bobbin), a coil device in which a wire or a thread is wound around the coil bobbin, and a coil bobbin winding device in which a wire or a thread is wound around the coil bobbin And a coil winding method.
[0002]
[Prior art]
Adopting a coil bobbin having a cylindrical portion and a pair of flanges extending radially outward from the outer circumferences of both ends of the cylindrical portion to manufacture a wire or thread winding body, that is, a coil, It is almost essential in terms of simplification.
[0003]
A typical example of a conventional coil bobbin winding device is shown in FIGS. Reference numeral 1 denotes a coil bobbin which is a rotating resin molded product, 2 is a resin-coated conductive wire wound around the coil bobbin 1, and 3 is a winding nozzle for guiding the resin-coated conductive wire. In order to wind the resin-coated conductive wire 2 around the coil bobbin 1, the resin-coated conductive wire 2 is spirally laminated and wound around the cylindrical portion of the coil bobbin 1 while the coil bobbin 1 is rotated. This type of coil bobbin is widely known, for example, from Patent Document 1.
[0004]
The role of the flange in the conventional coil bobbin is to prevent the wire or thread of each layer from protruding in the axial direction when winding the coil on the cylindrical part of the coil bobbin, and to mechanically or electrically And the like, and the coil is prevented from collapsing in the axial direction.
[0005]
[Patent Document 1] JP-A-10-109374
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional coil bobbin, when a wire or thread is wound substantially in contact with the collar part of the coil bobbin, the wire or thread extending from the end of the cylindrical part of the coil bobbin to the coil feeder side is the outer edge of the coil bobbin collar. There was a problem that it was easily caught. A state where the flange portion 12 of the coil bobbin 1 is caught by the resin-coated conductive wire 2 and is wound into the cylindrical portion 11 of the coil bobbin 1 is shown. This state is shown in FIG. When the wire or thread is caught on the outer edge of the buttock in this way, the line or thread breaks, the wire or thread rides on the outer edge of the buttock, or the hook or heel falls to the coil side by the wire or thread. A winding failure accident occurs in which a wire or a thread is wound on the wire.
[0007]
In order to solve this problem, it is conceivable that at least the radially outer portion of the flange portion is slightly inclined outward in the axial direction of the coil bobbin. However, such countermeasures may deteriorate the function of maintaining the shape of the side surface of the coil because the collar part is separated from the side surface of the coil after winding, or the overall physique increases in the axial direction by the inclination of the collar part. This will cause a problem. In addition, a gap is formed between the collar and the coil side surface, and impurities such as moisture and powder are liable to enter.
[0008]
Similarly, there is a problem that the hook part of the coil bobbin sways in the axial direction during winding work, or the wire or thread is caught by the hook part when it is wound near the hook part due to dimensional tolerance variation of the hook part. In order to solve this problem, a measure to increase the thickness of the flange and improve the coil bobbin forming accuracy can be considered. However, such a measure causes a problem that the manufacturing cost increases and the physique increases.
[0009]
The present invention has been made in view of the above problems, and provides a coil bobbin excellent in shape maintainability of the side surface of a coil that is wound, a coil device using the coil bobbin, and a coil bobbin winding device suitable for the coil bobbin. Is the purpose.
[0010]
[Means for Solving the Problems]
The coil bobbin of the present invention according to claim 1 is a coil bobbin made of a resin molded article having a cylindrical portion and a pair of flange portions that are formed thin and extend radially outward from the outer periphery of both ends of the cylindrical portion. The collar portion is characterized in that it is tilted a predetermined angle inward in the axial direction in a non-winding state so that it can be elastically deformed outward in the axial direction after winding.
[0011]
In other words, the flange portion of the coil bobbin of the present invention has a shape that falls inward in the axial direction as it is radially separated from the cylindrical portion in a state in which it is not wound, as opposed to conventional common sense. By the wound laminated winding, the flange portion is elastically deformed outward in the axial direction, and the flange portion elastically biases the axially inner side, that is, the side surface of the laminated winding.
For this reason, the side surface of the coil (laminated winding) formed on the cylindrical portion of the coil bobbin does not collapse, and a gap is formed between the inner side surface of the flange portion and the side surface of the laminated winding. There is no intrusion of unwanted impurities. Also, even if the molding accuracy is somewhat poor, the collar does not fall outward in the axial direction, so that it is possible to satisfactorily prevent the side surface of the coil, that is, the laminated winding from collapsing when winding a wire or thread around the cylindrical portion of the coil bobbin. Can do.
[0012]
In the preferred embodiment of the coil bobbin according to the second aspect of the present invention, since the flange portion is tilted by 3 to 15 degrees inward in the axial direction in the non-winding state, the above-described effect can be satisfactorily achieved. When the inclination of the buttocks in the non-winding state is less than 3 degrees, the above effect is insufficient, and when it exceeds 15 degrees, it becomes difficult to temporarily correct the inclination of the buttocks by means described later.
[0013]
According to a third aspect of the present invention, there is provided a coil device in which a wire or a thread is wound around the coil bobbin, and is formed in a thin cylindrical portion and radially outward from both ends of the cylindrical portion. A coil device comprising a coil bobbin made of a resin molded product having a pair of flange portions and a winding wound around the cylindrical portion, wherein the winding portion is wound around the cylindrical portion. Is elastically biased in the axial direction.
[0014]
Since this coil apparatus, that is, the coil bobbin winding coil, uses the coil bobbin in which the above-described collar portion is inclined inward in the axial direction before winding, the effect of the coil bobbin of the present invention described above can be achieved.
[0015]
According to a fourth aspect of the present invention, there is provided a coil bobbin winding device comprising a resin molded product having a cylindrical portion and a pair of flange portions that are formed to be thin and extend radially outward from both ends of the cylindrical portion. In a coil bobbin winding device comprising: a bobbin driving unit that rotates a coil bobbin; and a line supply unit that supplies the wire or thread to the cylindrical part so that the wire or thread is spirally wound around the cylindrical part.
There is a collar guide member that extends from the line supply section to the cylindrical section and prevents the wire or thread adjacent to the collar section from contacting the collar section and rolling the collar section over the cylindrical section. The collar part guide member is inserted between the pair of collar parts at a predetermined distance in the radial direction from the cylindrical part and urges the collar part outward in the axial direction, or the shaft of the collar part The axial distance between the pair of flanges is ensured to be equal to or greater than the winding width of the cylindrical portion by restricting the inward tilting. According to this manufacturing apparatus, with a simple structure, a coil or wire can be wound around a coil bobbin to form a coil.
[0016]
That is, the coil bobbin winding device according to the present invention tilts the pair of hooks outward in the axial direction by pushing the hook guide member between the pair of hooks. Thereby, the line or thread from the line supply unit to the cylindrical part of the coil bobbin is wound around the cylindrical part without being caught by the outer edge of the collar part. Also, since the hook part is forcibly tilted to the outside in the axial direction only when winding the wire or thread around the cylindrical part, after the winding is finished, the side surface of the coil that has been laminated and laminated is put on the inner side in the axial direction. Can be prevented from collapsing, and a gap can be formed between the coil side surface and the flange portion to prevent foreign matters from entering. Further, by utilizing this forced buttock spreading, the degree of freedom of the posture of the buttock of the coil bobbin, that is, the creation accuracy can be lowered.
For example, the buttocks can be tilted by a certain angle. As a result, it is possible to prevent the collar portion from tilting outward in the axial direction even if the inclination of the collar portion deviates from a preset angle due to variations in manufacturing tolerances or variations in the accuracy of attaching the coil bobbin to the bobbin driving unit. . Such an inclination of the flange portion outward in the axial direction is particularly important because no gap is generated between the flange portion and the coil side surface after winding.
[0017]
The buttocks guide member may be one member having two side surfaces in contact with the pair of buttocks, or may be two members in contact with one of the buttocks. In order to reduce the frictional resistance between the collar guide member and the collar part, the surface in contact with the side surface of the collar part of the collar guide member may be a rotating surface.
[0018]
In the aspect of the coil bobbin winding device according to the fifth aspect of the present invention, the collar guide member extends from the line supply section to the cylindrical section and is closer to the cylindrical section than the wire or thread adjacent to the collar section. Arranged close to the upstream side in the rotation direction, the collar guide member has a pair of side surfaces that are in sliding contact with the inner surface of the collar part, and the collar part guide member has the collar part that the collar part is the collar part guide member. It is characterized by having an axial width that allows it to pass outside the line or thread after leaving the axial side surface.
[0019]
In this way, the hook part passes through the position where the line or thread is present before leaving the wide hook part guide member and returning to the original axial width, thus preventing contact between the line or thread and the hook part. can do.
[0020]
In this aspect of the coil bobbin winding device according to claim 6, the axial width of the circumferential side surface on the wire or yarn side of the hook guide member is narrower by a predetermined dimension than the interval between the pair of hook parts. It is characterized by being. If it does in this way, even if the collar part is formed in the shape of a petal, the collar part approaching toward the collar part guide member is not caught by the collar part guide member.
[0021]
In this aspect of the coil bobbin winding device according to claim 7, the coil bobbin winding device has an elevating part that inserts the rib part guide member between the pair of collar parts or separates the collar part from the pair of collar parts, The distal end portion of the heel guide member that first comes close to the heel portion at the time of insertion has a narrower axial width than the base portion of the heel guide member that is in contact with the heel portion thereafter. If it does in this way, a collar part guide member can be easily inserted between a pair of collar parts.
[0022]
In the coil winding method using the coil bobbin winding device according to claim 8, the coil bobbin is set in the bobbin driving portion, the flange guide member is inserted between the pair of flange portions, and the bobbin driving portion is After rotating and winding the wire or thread around the cylindrical part, the bobbin driving part is stopped, the collar part guide member is separated from between the pair of collar parts, and the coil bobbin is separated from the bobbin driving part. It is characterized by removing. In this way, it is possible to realize a coil winding method that can reliably prevent a wire or a thread from being caught by the collar guide member during winding.
[0023]
The coil bobbin winding device according to claim 9 rotates a coil bobbin made of a resin molded product having a cylindrical portion and a pair of flange portions that are formed thin and extend radially outward from the outer periphery of both ends of the cylindrical portion. In a coil bobbin winding device having a bobbin driving unit and a line supply unit that supplies the wire or thread to the cylindrical part so that the wire or thread is spirally wound around the cylindrical part,
There is a collar guide member that extends from the line supply section to the cylindrical section and prevents the wire or thread adjacent to the collar section from contacting the collar section and rolling the collar section over the cylindrical section. The hook part guide member is close to the side surface of the hook part, and sucks or blows the hook part outward in the axial direction, and urges the hook part outward in the axial direction. It is characterized in that the axial interval is ensured to be equal to or larger than the winding width of the cylindrical portion.
[0024]
In other words, the coil bobbin winding device of the present invention sucks or blows the hook part outward in the axial direction at a position where the wire or thread is close to the hook part, so that the wire or thread and the hook outer edge can be reliably secured with a simple structure. Can be prevented.
[0025]
The coil bobbin winding device according to claim 10, wherein the collar part guide member extends from the line supply part to the cylindrical part and rotates in the direction of rotation of the cylindrical part rather than the wire or thread that is close to the collar part. It is characterized by being arranged close to the upstream side.
In this way, the hook is biased outward in the axial direction at least before approaching the line or the thread, so that the catching of both can be prevented well.
[0026]
The coil bobbin winding apparatus using the coil bobbin winding device according to claim 11, wherein the hook part guide member is used to rotate the bobbin driving part and wind the wire or the thread around the cylindrical part. Is characterized in that it is deformed outward in the axial direction.
In this way, fluid energization of the collar portion is performed only while the wire or thread is wound around the cylindrical portion of the coil bobbin, so that fluid energy can be saved.
[0027]
In a preferred coil winding method using the coil bobbin winding device according to claim 12, the wire or thread is wound around the cylindrical portion while rotating the bobbin driving portion. The collar part is deformed outward in the axial direction by the collar part guide member only while being close to the part. In this way, fluid energies are saved only during the time when the wire or thread moves in the axial direction of the cylindrical part of the coil bobbin and approaches the collar at regular intervals, thus saving fluid energy. Can do.
[0028]
In a preferred aspect of the coil bobbin winding device according to claim 13, the flange guide member is formed substantially radially on a flange flange plate portion that rotates close to the axially outer side of the flange portion, and sucks the flange portion. It is characterized by comprising an air circulation groove. If it does in this way, an invention effect can be realized only by forming a slot in a flange base plate part which pinches a coil bobbin and rotates a coil bobbin, and can attain simplification of an apparatus.
[0029]
In a preferred aspect of the coil bobbin winding device according to claim 14, since the flange portion of the coil bobbin is tilted by a predetermined angle inward in the axial direction in advance, even if the inclination of the flange portion slightly changes due to manufacturing variation or the like, Since the flange portion is not formed to fall outward in the axial direction, no gap is formed between the flange portion and the side surface of the coil after winding.
[0030]
As the above-described line supply unit, various known methods such as a bobbin shape and a drum shape can be adopted in addition to the nozzle shape. Similarly, the bobbin driving unit may be any of various known ones as long as the bobbin is configured to be detachable and rotates the coil bobbin. As the wire or thread, a fishing line, a resin thread, etc. can be employed in addition to the resin-coated conductor line.
[0031]
[Example 1]
Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view showing a state where coil bobbin winding is performed by the coil bobbin winding device of this embodiment, FIG. 2 is a front view thereof, and FIG.
(Constitution)
Reference numeral 1 denotes a coil bobbin. The resin-coated conducting wire 2 is guided from the rotating drum (not shown) around which the resin-coated conducting wire 2 is wound through the hole 3A of the winding nozzle 3 to the cylindrical portion 11 of the coil bobbin 1 to rotate the coil bobbin 1 It is wound around the outer peripheral surface of the cylindrical portion 11. The coil bobbin 1 has a pair of flange portions 12 that individually extend radially outward from both axial ends of the cylindrical portion 11. As shown in FIG. 1, each heel part 12 is formed in a petal shape having six petal-like parts. Of course, depending on a use, the collar part 12 may be a ring plate shape or a disk shape. The winding nozzle 3 reciprocates at a constant speed in the axial direction, and sequentially winds the resin-coated conductive wire 2 spirally around the outer periphery of the cylindrical portion 11. Reference numerals 4 and 5 denote rotating chuck mechanisms that rotate while pinching the coil bobbin 1 from both sides in the axial direction, and are mechanisms that rotate the coil bobbin 1. The rotary chuck mechanisms 4, 5 have a flange shape, a flange flange plate portion 6 that is in close contact with the flange portion 12 of the coil bobbin 1, and a shaft portion that extends axially outward from the center of the flange flange plate portion 6. 7. The shaft portion 7 is rotated by a rotating mechanism (not shown), and can be advanced and retracted in the axial direction by an axial moving mechanism (not shown). Instead of the rotating chuck mechanisms 4 and 5, other known coil bobbin rotating mechanisms such as inserting a spindle shaft into the coil bobbin 1 may be adopted.
[0032]
Reference numeral 8 denotes a guide block that characterizes this embodiment. The upper end of the guide block 8 is fixed to a piston 9 of a cylinder (not shown) and moves up and down in FIG. In this embodiment, the guide device 6 is made of a metal block, and the axial width thereof is slightly wider than the gap width between the pair of flange portions 12 of the coil bobbin 1, that is, the axial length of the cylindrical portion 11. .
(Operation)
The operation of the coil bobbin winding device of this embodiment will be described below.
[0033]
In the initial state, the guide block 8 is in the raised position, and the rotary chuck mechanisms 4 and 5 are retracted on both sides in the axial direction. In this state, first, by driving a jig (not shown) that holds the coil bobbin 1, the coil bobbin 1 is set between the rotary chuck mechanisms 4, 5, and the rotary chuck mechanisms 4, 5 are advanced in the axial direction so as to move the coil bobbin 1. Pinch. Next, the tip of the resin-coated conductive wire 2 is temporarily fixed to a locking portion (not shown) of the flange portion 12 of the coil bobbin 1, and the guide block 8 is lowered between the pair of flange portions 12.
However, the lowering of the guide block 8 is restricted to a range where the guide block 8 is not in contact with the outer peripheral surface of the coil wound with the guide block 8 when the resin-coated conductive wire 2 is wound around the cylindrical portion 11 of the coil bobbin 1. Next, the rotary chuck mechanisms 4 and 5 are rotated to wind the resin-coated conductive wire 2 around the cylindrical portion 11 of the coil bobbin 1 and to reciprocate the winding nozzle 3 in the axial direction at a constant speed. Laminate spirally on top.
When the winding is completed, the rotation of the rotary chuck mechanisms 4 and 5 is stopped, the guide block 8 is raised and detached from the coil bobbin 1, and the end of the resin-coated conductive wire 2 is cut by a cutting mechanism (not shown). The mechanisms 4 and 5 are retracted in the axial direction, and the coil bobbin 1 is dropped downward. As described above, this coil bobbin winding device has a structure in which only the guide block 8 is added compared to the conventional one.
(Further description of guide block 8)
The guide block 8 that characterizes this embodiment will be further described.
[0034]
As shown in FIG. 2 which is a front view of the apparatus, the lower end surface of the guide block 8 facing the cylindrical portion 11 is tapered at a corner between the lower end surface and the side surface. By forming this taper, the guide block 8 can be easily inserted into the gap between the pair of flanges 12. The axial width of the guide block 8 excluding the tapered portion is set to be equal to or slightly larger than the axial length of the cylindrical portion 11. Thereby, the guide block 8 prevents the collar part 12 from falling down in the axial direction.
[0035]
Further, as shown in FIG. 1, the guide block 8 is disposed close to the resin-coated conductive wire 2 on the upstream side in the rotation direction of the coil bobbin with respect to the resin-coated conductive wire 2 from the winding nozzle 3 toward the coil bobbin. . Thereby, when the circumferential direction front-end | tip part of the petal-like collar part 12 leaves | separates from the side surface of the guide block 8, and passes the axial direction outer side of the resin-coated conducting wire 2, the circumferential direction rear-end part of the petal-shaped collar part 12 is Since the fall of the guide block 8 is still in contact with the side surface of the guide block 8 and is restricted to the inner side in the axial direction, the distal end portion in the circumferential direction also falls in the axial direction due to the rigidity of the petal-like collar 12 and is caught by the resin-coated conductor 2. There is no.
[0036]
Further, as shown in FIG. 3 which is a plan view of the apparatus, the guide block 8 is tapered at the corner between the circumferential tip surface 81 and the side surface of the guide block 8. If it does in this way, it can prevent that the outer end edge 121 of the collar part 12 formed in the shape of a petal as shown in FIG. 1 is caught in the said corner | angular part of the guide block 8 during rotation.
[0037]
[Example 2]
Hereinafter, another preferred embodiment of the present invention will be described with reference to FIG. FIG. 4 is a partial front sectional view showing the vicinity of the rotary chuck mechanism 4 of the coil bobbin winding device of this embodiment.
(Constitution)
In the coil bobbin winding device of this embodiment, the guide block 8 is omitted in the device described in the first embodiment, and instead, the air circulation groove 61 and the air introduction are formed in the flange rib plate portion 6 of the rotary chuck mechanisms 4 and 5. The feature is that the hole 62 is provided.
[0038]
A large number of air flow grooves 61 are formed radially on the end surface of the flange rib plate portion 6 facing the flange portion 12 of the coil bobbin 1. The air introduction holes 62 are a large number of holes penetrated in the radial direction at the radially inner end of the flange flange plate portion 6, and each air introduction hole 62 is formed in the flange flange plate portion 6 at a constant circumferential pitch. The outlet of the air introduction hole 62 communicates with the inlet of the air circulation groove 61.
(Operation)
The operation of the apparatus itself is the same as that of the first embodiment except for the guide block 8. However, in this embodiment, since the flange rib plate portion 6 has the air circulation groove 61 and the air introduction hole 62, the following operational effects are obtained.
[0039]
Along with the rotation of the flange flange 6, the air in the air circulation groove 61 is urged radially outward by centrifugal force, and a negative pressure is generated in the air circulation groove 61. To eliminate this negative pressure. Air is introduced from the air introduction hole 62. Due to the negative pressure generated in the air circulation grooves 61, the flange portions 12 adjacent to the air circulation grooves 61 are sucked into the air circulation grooves 61, and as a result, the flange portions 12 are in close contact with the flange flange plate portion 6. Thereby, there can exist an effect similar to the guide block 8 of Example 1. FIG. In addition, it is natural that the flange flange plate portion 6 is provided in both of the rotary chuck mechanisms 4 and 5.
(Modification 1)
The air introduction hole 62 described above can be omitted. That is, the air introduction hole 62 is not indispensable because the air circulation groove 61 is negatively pressured only by pushing the air in the air circulation groove 61 recessed substantially in the radial direction radially outward by the centrifugal force.
(Modification 2)
The air flow groove 61 described above can be retracted to the downstream side in the rotational direction as it goes outward in the radial direction as in the conventional centrifugal blade.
(Modification 3)
The air circulation groove 61 is preferably widened in the circumferential direction as it goes radially outward, and the partition wall between the air circulation grooves 61, 61 adjacent in the circumferential direction is as thin as possible, and the suction effect due to negative pressure is more effective. This is preferable in that it can be increased.
[0040]
[Example 3]
Hereinafter, another preferred embodiment of the present invention will be described with reference to FIG. FIG. 5 is a partial front sectional view showing the vicinity of the rotary chuck mechanism 4 of the coil bobbin winding device of this embodiment.
(Constitution)
The coil bobbin winding device of this embodiment is characterized in that an air blowing nozzle 10 is further added to the device described in Example 2 described above.
(Operation)
Except for the action of the air blowing nozzle 10, the operation of the apparatus is the same as that of the apparatus of the second embodiment. The air blowing nozzle 10 blows an air flow so as to press the flange portion 12 against the flange flange plate portion 6 during the rotation of the coil bobbin 1, thereby preventing the flange portion 12 from falling further inward in the axial direction. it can. In addition, it is natural that the air blowing nozzle 10 is sprayed to both the collar parts 12. The air blowing nozzle 10 is preferably provided at a position where there is no hindrance to the attachment / detachment of the coil bobbin 1, but may be movable so as not to hinder the attachment / detachment of the coil bobbin 1. The air blowing nozzle 10 desirably blows a high-speed air flow on the flange 12 at least in the vicinity of the resin-coated conductor 2 shown in FIG. 1, but at least when the flange 12 passes through the resin-coated conductor 2, If the conductor 2 can be prevented from being caught, the air flow blowing position can be changed.
(Modification 1)
In the above description, both the negative pressure effect of the air circulation groove 61 and the air blowing effect of the air blowing nozzle 10 are used, but it is natural that only one of them may be used.
(Modification 2)
In the above embodiment, the air blowing nozzle 10 blows air all the time during the rotation of the coil bobbin 1, but it is the axial end portion on the cylindrical portion 11 that causes the problem of the inward tilting of the flange portion 12. This is only the period in which the resin-coated conductor 2 is wound on the upper side, that is, the period in which the resin-coated conductor 2 approaches the flange 12. Therefore, during the period in which the resin-coated conductive wire 2 moves away from the flange 12, the air blowing from the air blowing nozzle 10 can be stopped to save energy.
[0041]
[Example 4]
By using the above-described embodiments, the coil bobbin winding can be performed without any problem even when the flange 12 of the coil bobbin 1 is slightly tilted inward in the axial direction. This embodiment further utilizes this advantage, and is characterized in that the flange 12 of the coil bobbin 1 is tilted inward in the axial direction by a predetermined angle, for example, about 3 to 15 degrees.
[0042]
In this way, in the coil device completed after completing the coil bobbin winding process, the flange portion 12 can always urge the side surface of the coil by a predetermined elastic urging force, so that a gap is formed between the two. It is difficult to make various impurities enter the gap. In addition, it is possible to prevent the gap 12 from being caused by the flange 12 being inclined outward in the axial direction due to variations in the shape of the coil bobbin.
[Brief description of the drawings]
FIG. 1 is a side view showing a state where coil bobbin winding is performed by a coil bobbin winding apparatus according to a first embodiment.
FIG. 2 is a front view of the apparatus of FIG.
FIG. 3 is a plan view of the device shown in FIG.
FIG. 4 is a side view showing a state where coil bobbin winding is performed by the coil bobbin winding device according to the second embodiment.
FIG. 5 is a side view showing a state where coil bobbin winding is performed by the coil bobbin winding device according to the third embodiment.
FIG. 6 is a side view showing a state where coil bobbin winding is performed by a conventional coil bobbin winding device.
7 is a front view of the apparatus of FIG.
8 is a front view of the apparatus shown in FIG.
[Explanation of symbols]
1 Coil bobbin
2 Resin-coated conductor
3 Winding nozzle (line supply unit)
4 Rotary chuck mechanism (bobbin drive)
5 Rotating chuck mechanism (bobbin drive unit)
6 Flange plate of rotating chuck mechanism
7 Shaft of rotating chuck mechanism
8 Guide block (Guide guide member)
9 Piston for lifting cylinder
10 Air blowout nozzle (buttock guide member)
11 Coil bobbin cylindrical section
12 Coil bobbin buttock
61 Air circulation groove (gutter part guide member)
62 Air introduction hole

Claims

In a coil bobbin made of a resin molded product having a cylindrical portion and a pair of flange portions formed thinly and extending radially outward from both ends of the cylindrical portion,
The coil bobbin is characterized in that the flange portion is tilted a predetermined angle inward in the axial direction in a non-winding state so as to be elastically deformable outward in the axial direction after winding.

The coil bobbin according to claim 1,
The coil bobbin according to claim 1, wherein the flange portion is tilted 3 to 15 degrees inward in the axial direction in a non-winding state.

A coil bobbin made of a resin molded product having a cylindrical portion and a pair of flanges formed thinly and extending radially outward from both ends of the cylindrical portion;
In a coil device comprising a winding wound around the cylindrical portion,
The coil device is characterized in that the flange portion elastically biases the winding wound around the cylindrical portion in the axial direction.

A bobbin driving unit that rotates a coil bobbin made of a resin molded product having a cylindrical part and a pair of flanges that are formed thin and extend radially outward from the outer periphery of both ends of the cylindrical part;
In a coil bobbin winding device having a line supply unit that supplies the wire or thread to the cylindrical part so that the wire or thread is spirally wound around the cylindrical part,
There is a collar guide member that extends from the line supply section to the cylindrical section and prevents the wire or thread adjacent to the collar section from contacting the collar section and rolling the collar section over the cylindrical section. And
The collar part guide member is inserted between the pair of collar parts at a predetermined distance in the radial direction from the cylindrical part and biases the collar part outward in the axial direction, or axially inside the collar part. The coil bobbin winding device is characterized in that an axial interval between the pair of flanges is ensured to be equal to or greater than a winding width of the cylindrical portion by restricting the tilting to the side.

In the coil bobbin winding device according to claim 4,
The collar part guide member extends from the line supply part to the cylindrical part and is arranged closer to the upstream side in the rotational direction of the cylindrical part than the line or thread that is close to the collar part,
The collar part guide member has a pair of side surfaces that are in sliding contact with the inner surface of the collar part,
The coil bobbin winding, wherein the collar part guide member has an axial width that allows the collar part to pass outside the wire or the thread after the collar part is separated from the axial side surface of the collar part guide member. apparatus.

In the coil bobbin winding device according to claim 5,
The coil bobbin winding device, wherein an axial width of a circumferential side surface on the line or yarn side of the hook guide member is narrower by a predetermined dimension than an interval between the pair of hook parts.

In the coil bobbin winding device according to claim 4,
An elevating part for inserting the eaves guide member between the pair of eaves or separating the elevating part from between the pair of eaves;
A coil bobbin characterized in that a distal end portion of the flange guide member that first comes close to the flange portion at the time of insertion has a narrower axial width than a base portion of the flange guide member that contacts the flange portion thereafter. Winding device.

In the coil winding method using the coil bobbin winding device according to claim 4,
Set the coil bobbin in the bobbin driving unit,
Inserting the collar guide member between the pair of collars;
After rotating the bobbin driving part and winding the wire or thread around the cylindrical part, the bobbin driving part is stopped,
Separating the collar guide member from between the pair of collars;
A coil winding method, wherein the coil bobbin is removed from the bobbin driving unit.

A bobbin driving unit that rotates a coil bobbin made of a resin molded product having a cylindrical part and a pair of flanges that are formed thin and extend radially outward from the outer periphery of both ends of the cylindrical part;
In a coil bobbin winding device having a line supply unit that supplies the wire or thread to the cylindrical part so that the wire or thread is spirally wound around the cylindrical part,
There is a collar guide member that extends from the line supply section to the cylindrical section and prevents the wire or thread adjacent to the collar section from contacting the collar section and rolling the collar section over the cylindrical section. And
The collar part guide member is close to the side surface of the collar part and sucks or blows the collar part outward in the axial direction to urge the collar part outward in the axial direction, thereby axially between the pair of collar parts. A coil bobbin winding device characterized in that an interval is secured to be equal to or greater than a winding width of the cylindrical portion.

In the coil bobbin winding device according to claim 9,
The hook part guide member extends from the line supply part to the cylindrical part and is arranged closer to the upstream side in the rotation direction of the cylindrical part than the line or thread that is close to the hook part. Coil bobbin winding device.

In the coil winding method using the coil bobbin winding device according to claim 9,
A coil winding method characterized in that the hook part is deformed outward in the axial direction by the hook part guide member only while the bobbin driving part is rotated and the wire or thread is wound around the cylindrical part.

In the coil winding method using the coil bobbin winding device according to claim 9,
While the wire or thread is wound around the cylindrical part by rotating the bobbin driving part, the hook part is axially moved by the hook guide member only while the line or thread is close to the hook part. A coil winding method characterized by deforming outward.

In the coil bobbin winding device according to claim 9,
The coil bobbin winding is characterized in that the flange guide member is formed of an air flow groove that is substantially radially formed in a flange flange plate portion that rotates close to the axially outer side of the flange portion and sucks the flange portion. apparatus.

In the coil bobbin winding device according to claim 4 or 9,
The coil bobbin winding device according to claim 1, wherein the flange portion of the coil bobbin is previously tilted inward in the axial direction by a predetermined angle.