JP5586341B2 - Winding machine and air core coil manufacturing method - Google Patents

Winding machine and air core coil manufacturing method Download PDF

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JP5586341B2
JP5586341B2 JP2010140556A JP2010140556A JP5586341B2 JP 5586341 B2 JP5586341 B2 JP 5586341B2 JP 2010140556 A JP2010140556 A JP 2010140556A JP 2010140556 A JP2010140556 A JP 2010140556A JP 5586341 B2 JP5586341 B2 JP 5586341B2
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coil
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JP2012004483A (en
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伸治 菊地
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日特エンジニアリング株式会社
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本発明は、小型スピーカ用ボイスコイルなどに用いられる空芯コイルを製造する巻線機及びそれを用いた空芯コイルの製造方法に関するものである。   The present invention relates to a winding machine for manufacturing an air core coil used for a voice coil for a small speaker and the like and a method for manufacturing an air core coil using the same.
従来、携帯電話機のような小型装置に用いられるスピーカにあっては、比較的細い線材を環状に巻回した比較的小型のコイルが用いられる。そして、このようなコイルの製造方法として、断面が円形の巻芯にコイル用の線材を巻付ける巻線装置が提案されている(例えば、特許文献1参照。)。この巻線装置では、その巻芯に巻付けられた線材からなるコイルをその巻芯から取り外すことにより、所望の断面形状を有するコイルを得ることができるようになっている。   Conventionally, in a speaker used in a small device such as a mobile phone, a relatively small coil in which a relatively thin wire is wound in an annular shape is used. As a method for manufacturing such a coil, a winding device has been proposed in which a coil wire is wound around a winding core having a circular cross section (see, for example, Patent Document 1). In this winding device, a coil having a desired cross-sectional shape can be obtained by removing a coil made of a wire wound around the winding core from the winding core.
特開平9−148168号公報Japanese Patent Laid-Open No. 9-148168
しかし、上記従来の巻線装置では、コイル用の線材に所定のテンションを加えて巻芯に巻付けるので、その巻芯に巻付けられた線材からなるコイルをその巻芯から取り外す作業が比較的困難になる不具合がある。この取り外しを容易にするために、上記特許文献1では、巻芯からコイルを取り外すための線ガイドを用いているけれども、線ガイドを得られたコイルの端部に当接させてそのコイルを巻芯から強制的に取り外そうとすると、所定のテンションが加えられて巻回されたコイル内周における線材の表面皮膜が巻芯と摺れることになり、その皮膜に損傷を与えるおそれがあった。   However, in the above-described conventional winding device, a predetermined tension is applied to the coil wire and the coil is wound around the winding core. Therefore, it is relatively difficult to remove the coil made of the wire wound around the winding core from the winding core. There is a problem that becomes difficult. In order to facilitate this removal, the above-mentioned Patent Document 1 uses a wire guide for removing the coil from the winding core, but the wire guide is brought into contact with the end of the obtained coil and the coil is wound. If it is forcibly removed from the core, the surface coating of the wire on the inner circumference of the coil wound with a predetermined tension applied will slide with the winding core, which may damage the coating. .
本発明の目的は、線材の皮膜に損傷を与えることなく巻芯に巻付けられた線材からなるコイルをその巻芯から比較的容易に取り外し得る巻線機及び及び空芯コイルの製造方法を提供することにある。   An object of the present invention is to provide a winding machine that can relatively easily remove a coil made of a wire wound around a winding core from the winding core without damaging the coating of the wire, and a method for manufacturing an air-core coil. There is to do.
本発明の巻線機は、周方向に複数に分割された分割片を先端に有し複数の分割片の互いの間隔を拡げ又は縮めることにより先端外径を拡大又は縮小可能に構成された筒状の巻芯と、巻芯に摺動可能に挿通され複数の分割片の中央に進入し又は離脱して巻芯の先端外径を拡大し又は縮小させる円錐台形状の操作片を有する操作棒と、巻芯に対して操作棒を移動させて操作片を複数の分割片の中央に進入させ又は離脱させる操作棒移動機構と、操作棒とともに巻芯を回転させて巻芯の先端外周に線材を巻回する巻芯回転駆動機構とを備える。   The winding machine of the present invention has a divided piece divided into a plurality in the circumferential direction at the tip, and a cylinder configured such that the outer diameter of the tip can be enlarged or reduced by increasing or reducing the interval between the plurality of divided pieces. And an operating rod having a truncated cone-shaped operation piece that is slidably inserted into the winding core and enters or leaves the center of the plurality of divided pieces to enlarge or reduce the outer diameter of the leading end of the winding core And an operating rod moving mechanism for moving the operating rod relative to the winding core to cause the operating piece to enter or leave the center of the plurality of divided pieces, and a wire rod around the tip of the winding core by rotating the winding core together with the operating rod. And a core rotation drive mechanism for winding the wire.
巻芯に嵌入され巻芯の先端に巻回される線材の一方の巻幅を規制する第1ガイド部材と、巻芯の先端側に巻芯から離脱可能に嵌入して巻芯の先端に巻回される線材の他方の巻幅を規制する第2ガイド部材とを備えることが好ましく、第1ガイド部材と巻芯の間及び第2ガイド部材と巻芯の間に巻芯の先端に嵌入された筒状ボビンの端縁が進入する隙間をそれぞれ形成することが更に好ましい。そして、第1ガイド部材と巻芯の間の隙間に、筒状ボビンと同径のリング部材と、リング部材を付勢する弾性体が挿入され、第2ガイド部材が巻芯の先端に嵌入状態で弾性体の付勢力に抗してリング部材とともに筒状ボビンの端縁が隙間に進入し、第2ガイド部材が巻芯の先端から離脱状態で弾性体はリング部材を介して筒状ボビンを隙間から排出するようにすることもできる。   A first guide member that restricts one winding width of a wire rod that is inserted into the core and wound around the tip of the core, and a detachable fit on the tip side of the core to be wound around the tip of the core. A second guide member that regulates the other winding width of the wire to be rotated, and is fitted at the tip of the core between the first guide member and the core and between the second guide member and the core. It is further preferable to form a gap into which the end of the cylindrical bobbin enters. Then, a ring member having the same diameter as the cylindrical bobbin and an elastic body that urges the ring member are inserted into the gap between the first guide member and the core, and the second guide member is fitted into the tip of the core. The edge of the cylindrical bobbin enters the gap together with the ring member against the urging force of the elastic body, and the elastic body moves the cylindrical bobbin through the ring member while the second guide member is detached from the tip of the winding core. It is also possible to discharge from the gap.
本発明の空芯コイルの製造方法は、周方向に複数に分割された分割片を先端に有する巻芯の複数の分割片の互いの間隔を拡げて先端外径を拡大し、巻芯の拡大した先端外周に線材を巻回して巻回された線材から成る空芯コイルを巻芯の先端に形成し、複数の分割片の互いの間隔を縮めて空芯コイルが形成された巻芯の先端外径を縮小させ、巻芯の縮小した先端外周から空芯コイルを抜き取ることを特徴とする。   The manufacturing method of the air core coil of the present invention increases the outer diameter of the tip by increasing the interval between the plurality of split pieces of the core having the tip divided into a plurality of pieces divided in the circumferential direction, and expanding the core. An air core coil formed by winding a wire around the outer periphery of the tip is formed at the tip of the core, and the tip of the core on which the air core coil is formed by reducing the interval between the plurality of divided pieces The outer diameter is reduced, and the air core coil is extracted from the outer periphery of the reduced tip of the winding core.
巻芯の先端外径を拡大する以前に先端外径を縮小させた巻芯の先端に筒状ボビンを嵌入すれば、線材が筒状ボビンの外周に巻回され、空芯コイルの抜き取りが筒状ボビンとともに行われる。この場合、巻芯の先端に筒状ボビンを嵌入した後線材の巻回以前に、筒状ボビンの一方の端縁を巻芯に嵌入された第1ガイド部材と巻芯との間の隙間に進入させるとともに、巻芯の先端側に第2ガイド部材を嵌入して筒状ボビンの他方の端縁を第2ガイド部材と巻芯との間の隙間に進入させることが行われれば、第1ガイド部材と第2ガイド部材の間の筒状ボビンの外周に線材を巻回することができる。そして、巻芯の先端に空芯コイルを形成した後であって巻芯の先端外周から空芯コイルを抜き取る以前に、巻芯の先端から第2ガイド部材を離脱させ、筒状ボビンを空芯コイルとともに軸方向に移動させて筒状ボビンの一方の端縁を第1ガイド部材と巻芯との間の隙間から抜き出すことが好ましい。   If a cylindrical bobbin is fitted to the tip of the core whose outer diameter has been reduced before the outer diameter of the core is increased, the wire is wound around the outer periphery of the cylindrical bobbin, and the air core coil is extracted. With a bobbin. In this case, before winding the wire rod after inserting the cylindrical bobbin at the tip of the winding core, one end edge of the cylindrical bobbin is placed in the gap between the first guide member fitted into the winding core and the winding core. If the second guide member is inserted into the leading end side of the winding core and the other edge of the cylindrical bobbin is inserted into the gap between the second guide member and the winding core, the first guide A wire rod can be wound around the outer periphery of the cylindrical bobbin between the guide member and the second guide member. Then, after forming the air core coil at the tip of the core and before extracting the air core coil from the outer periphery of the core, the second guide member is detached from the tip of the core, and the cylindrical bobbin is removed from the core. It is preferable to move the end of the cylindrical bobbin together with the coil in the axial direction from the gap between the first guide member and the core.
本発明では、コイル用の線材の巻線時にはその線材に所定のテンションを加えて巻芯に巻付けるにもかかわらず、その巻芯に巻付けられた線材からなるコイルをその巻芯から取り外す際に、その線材が巻回された巻芯先端の外径を縮小させることになる。このため、巻芯の外周とコイルの内周との間には隙間が生じ、比較的容易にコイルを巻芯から取り外すことができる。このように巻芯の外周とコイルの内周との間に隙間が生じていると、その取り外し時にコイル内周における線材の表面皮膜と巻芯とが著しく摺れるようなことを回避することができ、線材の皮膜に損傷を与えることなく巻芯に巻付けられた線材からなるコイルをその巻芯から比較的容易に取り外すことが可能になる。   In the present invention, when winding a wire for a coil, the coil made of the wire wound around the winding core is removed from the winding core, although a predetermined tension is applied to the wire and wound around the winding core. In addition, the outer diameter of the core tip around which the wire is wound is reduced. For this reason, a gap is generated between the outer periphery of the core and the inner periphery of the coil, and the coil can be removed from the core relatively easily. Thus, if a gap is generated between the outer periphery of the winding core and the inner periphery of the coil, it is possible to avoid that the surface film of the wire rod and the winding core on the inner periphery of the coil are slid significantly during the removal. The coil made of the wire wound around the winding core can be removed from the winding core relatively easily without damaging the coating of the wire.
また、空芯コイルを筒状ボビンの周囲に形成する場合には、その空芯コイルの抜き取りが筒状ボビンとともに行われることになるけれども、その抜き取り時に、巻芯先端の外径を縮小させることにより、巻芯の外周と筒状ボビンの内周との間に隙間を生じさせて、筒状ボビンの内周と巻芯とが著しく摺れるようなことを回避することができる。よって、空芯コイルを筒状ボビンの周囲に形成する場合であっても、本発明の巻線機及び及び空芯コイルの製造方法では、線材の皮膜に損傷を与えることなくコイルを巻芯から比較的容易に取り外すことが可能になる。   In addition, when the air core coil is formed around the cylindrical bobbin, the air core coil is extracted together with the cylindrical bobbin, but the outer diameter of the core end is reduced at the time of extraction. Thus, it is possible to avoid a gap between the outer periphery of the core and the inner periphery of the cylindrical bobbin so that the inner periphery of the cylindrical bobbin and the core are slid significantly. Therefore, even when the air-core coil is formed around the cylindrical bobbin, the winding machine and the air-core coil manufacturing method of the present invention can remove the coil from the core without damaging the wire film. It can be removed relatively easily.
なお、空芯コイルを筒状ボビンの周囲に形成する場合では、筒状ボビンの一方の端縁を第1ガイド部材と巻芯との間の隙間に進入させるとともに、筒状ボビンの他方の端縁を第2ガイド部材と巻芯との間の隙間に進入させることにより、筒状ボビンの外周の所望の範囲に線材を巻回することができる。そして、巻芯の先端から第2ガイド部材を離脱させるとともに、筒状ボビンの一方の端縁を第1ガイド部材と巻芯との間の隙間から抜き出すようにすれば、更に容易に空芯コイルを巻芯から取り外すことができる。   In the case where the air core coil is formed around the cylindrical bobbin, one end edge of the cylindrical bobbin enters the gap between the first guide member and the winding core, and the other end of the cylindrical bobbin. By causing the edge to enter the gap between the second guide member and the core, the wire can be wound around a desired range on the outer periphery of the cylindrical bobbin. If the second guide member is detached from the tip of the core and one end edge of the cylindrical bobbin is extracted from the gap between the first guide member and the core, the air-core coil can be more easily Can be removed from the core.
本発明実施形態の巻芯に嵌入された筒状ボビンの第1ガイド部材と第2ガイド部材との間に線材が巻回された状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state by which the wire was wound between the 1st guide member of the cylindrical bobbin inserted by the winding core of this invention embodiment, and the 2nd guide member. その巻芯から第2ガイド部材が離間した状態を示す図1に対応する断面図である。It is sectional drawing corresponding to FIG. 1 which shows the state which the 2nd guide member spaced apart from the winding core. その筒状ボビンの周囲に線材が巻回された状態を示す斜視図である。It is a perspective view which shows the state by which the wire was wound around the cylindrical bobbin. 図5のC−C線断面図である。It is CC sectional view taken on the line of FIG. 図9のA−A線断面図である。FIG. 10 is a sectional view taken along line AA in FIG. 9. 図4のD方向から観た図である。It is the figure seen from the D direction of FIG. 図9のF部の拡大図である。It is an enlarged view of the F section of FIG. 図9のB−B線断面図である。FIG. 10 is a sectional view taken along line B-B in FIG. 9. 本発明実施形態の巻線機の上面図である。It is a top view of the winding machine of an embodiment of the present invention.
次に本発明を実施するための最良の形態を図面に基づいて説明する。   Next, the best mode for carrying out the present invention will be described with reference to the drawings.
図4〜図9に本発明の巻線機10を示す。各図において、互いに直交するX、Y及びZの3軸を設定し、X軸が略水平前後方向、Y軸が略水平横方向、Z軸が鉛直方向に延びるものとし、この巻線機10の構成について説明する。この巻線機10は、矩形体から成る基台11における上板11aからZ軸方向上方に突出して設けられた筒状の巻芯12と、その巻芯12に摺動可能に挿通された操作棒13とを備える。図3及び図7に示すように、巻芯12の先端には周方向に所定の間隔を空けて軸方向に伸びる複数のスリット12a(この実施の形態では3本のスリット12a)が形成され、このスリット12aにより巻芯12の先端は周方向に複数に分割され、そのスリット12aによりこの実施の形態では3つに分割された複数の分割片12bがその巻芯12の先端に設けられる。そして、複数の分割片12bの互いの間隔を拡げ又は縮めることにより巻芯12の先端はその外径を拡大し又は縮小可能に構成される。   4 to 9 show a winding machine 10 of the present invention. In each figure, three axes X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal front-rear direction, the Y axis extends in a substantially horizontal lateral direction, and the Z axis extends in a vertical direction. The configuration of will be described. The winding machine 10 includes a cylindrical core 12 provided in a base 11 made of a rectangular body so as to project upward from the upper plate 11a in the Z-axis direction, and an operation slidably inserted through the core 12. And a bar 13. As shown in FIGS. 3 and 7, a plurality of slits 12a (three slits 12a in this embodiment) extending in the axial direction at predetermined intervals in the circumferential direction are formed at the tip of the core 12; The slit 12 a divides the tip end of the core 12 into a plurality of portions in the circumferential direction, and a plurality of divided pieces 12 b divided into three in this embodiment by the slit 12 a are provided at the tip of the core 12. And the front-end | tip of the core 12 is comprised so that the outer diameter can be expanded or reduced by expanding or contracting the space | interval of the some division | segmentation piece 12b.
図1〜図3に示すように、この巻芯12に摺動可能に挿通された操作棒13の先端には円錐台形状の操作片13aが設けられる。この操作片13aは、上方に向かって外径が拡大する円錐台形状を成し、複数の分割片12bから成る巻芯12の先端部分における内周にあっても上方に向かってその径が拡大する円錐形状に形成される。そして、その円錐形状を成す巻芯12の先端部内周と操作片13aの外径は略等しく形成され、図2に示すように、巻芯12先端の複数の分割片12bの中央に操作片13aが上方から進入してその周囲が巻芯12の内周に接触した後、実線矢印で示すように更にZ軸方向下方に進入することによりその巻芯12の先端外径を拡大させるように構成される。一方、複数の分割片12bは、巻芯12の先端に形成されたスリット12aにより形成されたものであるので、図2の破線矢印で示すように、操作片13aが巻芯12の先端から上方に離脱すると、巻芯12の弾性によりその巻芯12の拡大した先端外径は縮小するように構成される。   As shown in FIGS. 1 to 3, a truncated cone-shaped operation piece 13 a is provided at the tip of the operation rod 13 slidably inserted into the winding core 12. This operation piece 13a has a truncated cone shape whose outer diameter increases upward, and its diameter increases upward even on the inner periphery of the distal end portion of the core 12 composed of a plurality of divided pieces 12b. It is formed in a conical shape. The inner circumference of the tip of the core 12 having the conical shape and the outer diameter of the operation piece 13a are formed to be substantially equal, and as shown in FIG. 2, the operation piece 13a is provided at the center of the plurality of divided pieces 12b at the tip of the core 12. Is entered from above and the periphery thereof contacts the inner periphery of the core 12, and then further enters the lower direction in the Z-axis direction as indicated by the solid arrow, thereby expanding the outer diameter of the tip of the core 12. Is done. On the other hand, since the plurality of divided pieces 12b are formed by the slits 12a formed at the front end of the core 12, the operation piece 13a is located above the front end of the core 12 as indicated by the broken line arrow in FIG. When the core 12 is detached, the expanded outer diameter of the core 12 is reduced by the elasticity of the core 12.
また、図4に示すように、本発明の巻線機10は、巻芯12を昇降可能に構成された巻芯昇降機構20と、巻芯12に対して操作棒13を移動させて操作片13aを複数の分割片12bの中央に進入させ又は離脱させる操作棒移動機構30と、操作棒13とともに巻芯12を回転させて巻芯12の先端外周に線材を巻回する巻芯回転駆動機構40とを備える。   As shown in FIG. 4, the winding machine 10 of the present invention includes a winding core lifting mechanism 20 configured to be capable of moving the winding core 12 up and down, and an operating piece 13 by moving the operating rod 13 with respect to the winding core 12. An operation rod moving mechanism 30 that causes 13a to enter or leave the center of the plurality of divided pieces 12b, and a core rotation drive mechanism that rotates the core 12 together with the operation rod 13 to wind a wire around the outer periphery of the core 12. 40.
巻芯昇降機構20は、巻芯昇降モータ21と、そのモータ21の回転軸21aに連結されたボールねじ22と、そのボールねじ22に螺合された昇降部材23と、巻芯12の下端にその巻芯12と同軸に設けられてその昇降部材23に枢支された延長管24とを備える。基台11の上板11aにはその上板11aと平行な支持板14が支柱16を介して基台11の内部に設けられる。巻芯昇降モータ21はこの支持板14に回転軸21aを鉛直にして設けられる。その回転軸21aに連結されたボールねじ22は昇降部材23における昇降板23aに螺合され、この昇降板23aの他に昇降部材23はその昇降板23aに巻芯12と同軸に立設されて上板11aを貫通する筒部材23bを有する。巻芯12の下端には円形のフランジ部12cが形成され、延長管24の上端にはそのフランジ部12cに重合する大径部24aが形成される。この大径部24aの他に延長管24はその大径部24aと同軸であって筒部材23bに貫通して枢支される枢支管部24bを有する。   The core raising / lowering mechanism 20 includes a core raising / lowering motor 21, a ball screw 22 connected to the rotation shaft 21 a of the motor 21, an elevating member 23 screwed to the ball screw 22, and a lower end of the core 12. An extension tube 24 provided coaxially with the winding core 12 and pivotally supported by the elevating member 23 is provided. On the upper plate 11 a of the base 11, a support plate 14 parallel to the upper plate 11 a is provided inside the base 11 via a column 16. The core raising / lowering motor 21 is provided on the support plate 14 with the rotating shaft 21a vertical. The ball screw 22 connected to the rotating shaft 21a is screwed to the elevating plate 23a in the elevating member 23. In addition to the elevating plate 23a, the elevating member 23 is erected on the elevating plate 23a coaxially with the core 12. It has a cylindrical member 23b that penetrates the upper plate 11a. A circular flange portion 12 c is formed at the lower end of the core 12, and a large diameter portion 24 a that overlaps with the flange portion 12 c is formed at the upper end of the extension pipe 24. In addition to the large-diameter portion 24a, the extension tube 24 has a pivot-supporting tube portion 24b that is coaxial with the large-diameter portion 24a and pivotally supported through the cylindrical member 23b.
この枢支管部24bは筒部材23bに対して軸方向に移動不能に枢支され、その枢支管部24bが巻芯12と同軸になるようにその大径部24aに巻芯12におけるフランジ部12cが取付けられる。そして、この巻芯昇降機構20では、巻芯昇降モータ21が駆動して、その回転軸21aに連結されたボールねじ22が回転すると、そのボールねじ22に螺合された昇降部材23が延長管24とともに昇降し、その延長管24に設けられた巻芯12が昇降するように構成される。なお、基台11における上板11aには、その上板11aを貫通してZ軸方向上方に突出する筒部材23bを包囲する包囲部材17が設けられる。   The pivotal support tube part 24b is pivotally supported so as not to move in the axial direction with respect to the cylindrical member 23b, and the large diameter part 24a is connected to the flange part 12c of the core 12 so that the pivotal support pipe part 24b is coaxial with the core 12. Is installed. And in this core raising / lowering mechanism 20, when the core raising / lowering motor 21 drives and the ball screw 22 connected with the rotating shaft 21a rotates, the raising / lowering member 23 screwed together with the ball screw 22 will be extended pipe | tube. The winding core 12 provided in the extension pipe 24 is moved up and down together with the upper and lower portions 24. The upper plate 11a of the base 11 is provided with a surrounding member 17 that surrounds the cylindrical member 23b that penetrates the upper plate 11a and protrudes upward in the Z-axis direction.
操作棒移動機構30は、巻芯昇降機構20における昇降板23aからZ軸方向下方に伸びて取付けられた取付ブラケット31を介して昇降板23aの下方に取付けられた操作用モータ32と、そのモータ32の回転軸32aに連結されたボールねじ33と、そのボールねじ33に螺合された操作部材34と、延長管24に軸方向に移動可能に貫通して設けられ操作棒13の下端にその上端が連結され下端が操作部材34に枢支された延長棒36とを備える。取付ブラケット31の鉛直面にはボールねじ33を包囲しつつ操作部材34を鉛直方向に案内するガイドレール37が設けられる。   The operating rod moving mechanism 30 includes an operating motor 32 attached below the lifting plate 23a via a mounting bracket 31 that extends from the lifting plate 23a in the core lifting mechanism 20 and extends downward in the Z-axis direction, and the motor. A ball screw 33 coupled to the rotation shaft 32a of the rotation shaft 32, an operation member 34 screwed to the ball screw 33, and an extension pipe 24 penetrating in the axial direction. An extension rod 36 having an upper end connected and a lower end pivotally supported by the operation member 34 is provided. A guide rail 37 is provided on the vertical surface of the mounting bracket 31 to guide the operation member 34 in the vertical direction while surrounding the ball screw 33.
そして、このような構成の操作棒移動機構30では、操作用モータ32が駆動して、その回転軸32aに連結されたボールねじ33が回転すると、そのボールねじ33に螺合する操作部材34が昇降し、その操作部材34に下端が枢支された延長棒36を操作棒13とともに昇降させるように構成される。この操作用モータ32は巻芯12を昇降させる昇降板23aに取付けられているので、操作棒13は巻芯12に対して鉛直方向に移動することになり、その操作棒13の先端に設けられた操作片13aを巻芯12の先端における複数の分割片12bの中央に進入させ又は離脱させることになる。   In the operation rod moving mechanism 30 having such a configuration, when the operation motor 32 is driven and the ball screw 33 connected to the rotation shaft 32a rotates, the operation member 34 screwed to the ball screw 33 is provided. The extension rod 36 that is lifted and lowered and pivoted at the lower end of the operation member 34 is moved up and down together with the operation rod 13. Since the operating motor 32 is attached to the lifting plate 23 a that moves the core 12 up and down, the operating bar 13 moves in the vertical direction with respect to the core 12 and is provided at the tip of the operating bar 13. The operated piece 13a is caused to enter or leave the center of the plurality of divided pieces 12b at the tip of the core 12.
巻芯回転駆動機構40は、筒部材23bを上方から貫通して筒部材23bの下方に突出した延長管24の下部にスプライン結合されてその延長管24に対して回転不能であってかつ軸方向に移動可能に設けられ、そして支持板14に枢支された回転部材41と、その回転部材41に同軸に設けられた第1プーリ42と、支持板14に取付けられた回転モータ43(図5)と、その回転モータ43の回転軸43aに設けられた第2プーリ44と、その第1及び第2プーリ42,44間に架設されたベルト46とを備える。このような構成の巻芯回転駆動機構40では、回転モータ43が駆動して第2プーリ44が回転すると、その回転はベルト46を介して第1プーリ42に伝達され、その第1プーリ42とともに回転部材41が回転する。そして、回転部材41にスプライン結合された延長管24が巻芯12とともに回転して、その巻芯12の先端外周に線材18(図1)を巻回可能に構成される。なお、巻芯12の先端には操作片13aが進入していることから、この巻芯12とともに操作棒13も回転することになるけれども、その操作棒13に連結された延長棒36の下端は操作部材34に枢支されているの、その操作棒13が回転することは阻害されない。また、延長管24は回転部材41に対して回転不能であるけれども、スプライン結合されて軸方向に移動可能であるので、巻芯12が回転している最中であっても、巻芯昇降機構20による巻芯12の昇降は可能に構成される。   The core rotation drive mechanism 40 is spline-coupled to the lower part of the extension pipe 24 that penetrates the cylinder member 23b from above and protrudes below the cylinder member 23b, and is not rotatable with respect to the extension pipe 24 and is axially And a rotary member 41 pivotally supported by the support plate 14, a first pulley 42 provided coaxially with the rotary member 41, and a rotary motor 43 attached to the support plate 14 (FIG. 5). ), A second pulley 44 provided on a rotation shaft 43a of the rotary motor 43, and a belt 46 provided between the first and second pulleys 42 and 44. In the core rotation driving mechanism 40 having such a configuration, when the rotation motor 43 is driven and the second pulley 44 rotates, the rotation is transmitted to the first pulley 42 via the belt 46, and together with the first pulley 42. The rotating member 41 rotates. The extension tube 24 splined to the rotating member 41 rotates with the core 12 so that the wire 18 (FIG. 1) can be wound around the outer periphery of the end of the core 12. Since the operating piece 13a enters the tip of the core 12, the operating bar 13 rotates together with the core 12, but the lower end of the extension bar 36 connected to the operating bar 13 is Although it is pivotally supported by the operating member 34, it is not hindered that the operating rod 13 rotates. Further, although the extension tube 24 is not rotatable with respect to the rotating member 41, it is spline-coupled and movable in the axial direction. Therefore, even when the core 12 is rotating, the core lifting mechanism The winding core 12 can be moved up and down by 20.
図8及び図9に示すように、巻芯12には、その巻芯12の先端に巻回される線材18の一方の巻幅を規制する第1ガイド部材51が嵌入され、その巻芯12の先端に巻回される線材18の他方の巻幅を規制する第2ガイド部材52が巻芯12の上方に設けられる。図9に示すように、基台11にはガイド部材可動機53が設けられ、その可動機53には基台11に固定された本体53aと、その本体53a上面に設けられた一対のレール53bと、そのレール53bにより移動可能に設けられ先端に第2ガイド部材52が設けられた可動台53cと、その可動台53cを往復移動可能なアクチュエータ53dとを備える。この実施の形態におけるアクチュエータ53dはその回転軸にボールねじ53eが連結されたサーボモータであって、そのボールねじ53eは可動台53cに螺合される。このため、アクチュエータ53dであるサーボモータを駆動してボールねじ53eを回転させるとその可動台53cはレール53bに沿って移動し、第2ガイド部材52を巻芯12の上方の第1位置と、その第1位置から離間する第2位置の間を往復移動可能に構成される。そして第2ガイド部材52が第2位置では、巻芯12の上方空間は開放されるように構成される。   As shown in FIGS. 8 and 9, the winding core 12 is fitted with a first guide member 51 that regulates one winding width of the wire 18 wound around the tip of the winding core 12. A second guide member 52 that regulates the other winding width of the wire 18 wound around the tip of the wire 18 is provided above the core 12. As shown in FIG. 9, a guide member movable machine 53 is provided on the base 11, and the movable machine 53 includes a main body 53a fixed to the base 11 and a pair of rails 53b provided on the upper surface of the main body 53a. And a movable base 53c that is movably provided by the rail 53b and provided with a second guide member 52 at the tip thereof, and an actuator 53d that can reciprocate the movable base 53c. The actuator 53d in this embodiment is a servo motor having a ball screw 53e connected to its rotating shaft, and the ball screw 53e is screwed to the movable base 53c. For this reason, when the servo motor which is the actuator 53d is driven to rotate the ball screw 53e, the movable base 53c moves along the rail 53b, and the second guide member 52 is moved to the first position above the core 12; It is configured to be able to reciprocate between second positions spaced from the first position. When the second guide member 52 is in the second position, the upper space of the core 12 is configured to be opened.
図8に示すように、第2ガイド部材52が第1位置にある場合であって、巻芯昇降機構20により巻芯12が上昇すると、図1に示すように、その巻芯12の先端側に嵌入可能な嵌入穴52aが第2ガイド部材52に形成され、巻芯昇降機構20により巻芯12が下降すると、図2に示すように、第2ガイド部材52から巻芯12が離脱するように構成される。図8に戻って、第2ガイド部材52はガイドモータ54の鉛直方向に伸びる回転軸54aに同軸に設けられ、そのガイドモータ54が可動台53cに取付けられる。そして、図1に示すように、巻芯12に嵌入した状態で第2ガイド部材52と巻芯12の間には、巻芯12の先端に嵌入された筒状ボビン19の端縁が進入する隙間52cが形成される。   As shown in FIG. 8, when the second guide member 52 is in the first position and the core 12 is raised by the core lifting mechanism 20, as shown in FIG. When the core 12 is lowered by the core lifting mechanism 20, the core 12 is detached from the second guide member 52 as shown in FIG. Configured. Returning to FIG. 8, the second guide member 52 is provided coaxially with a rotating shaft 54a extending in the vertical direction of the guide motor 54, and the guide motor 54 is attached to the movable base 53c. Then, as shown in FIG. 1, the edge of the cylindrical bobbin 19 inserted at the tip of the core 12 enters between the second guide member 52 and the core 12 in a state of being inserted into the core 12. A gap 52c is formed.
図8に戻って、第1ガイド部材51は巻芯12に嵌入される嵌入筒部51aと、嵌入筒部51aの下端に巻芯12におけるフランジ部12cに重合するように連続して設けられてそのフランジ部12cに固定される固定部51bとを有する。この第1ガイド部材51の嵌入筒部51aにおける上縁は、その巻芯12の先端に巻回される線材18の一方の巻幅を規制する面となり、図3に示すように、その上縁には巻芯12に巻回された線材18の巻始めと巻き終わりが進入する凹溝51cが巻芯12の接線方向に伸びて形成される。そして、図1に示すように、第1ガイド部材51と巻芯12の間には、巻芯12の先端に嵌入された筒状ボビン19の端縁が進入する隙間51dが形成される。   Returning to FIG. 8, the first guide member 51 is continuously provided so as to overlap the flange portion 12 c of the winding core 12 at the lower end of the fitting cylindrical portion 51 a and the fitting cylindrical portion 51 a inserted into the winding core 12. And a fixing portion 51b fixed to the flange portion 12c. The upper edge of the insertion tube portion 51a of the first guide member 51 is a surface that regulates one winding width of the wire 18 wound around the tip end of the core 12, and as shown in FIG. In this case, a concave groove 51c into which the winding start and winding end of the wire 18 wound around the winding core 12 enters is formed extending in the tangential direction of the winding core 12. As shown in FIG. 1, a gap 51 d is formed between the first guide member 51 and the core 12 so that the edge of the cylindrical bobbin 19 fitted at the tip of the core 12 enters.
第1ガイド部材51と巻芯12の間の隙間51dには筒状ボビン19と同径のリング部材56が挿入される。このリング部材56の下端には外側に拡がってドーナツ状を成す係止部56aが一体的に形成され、この係止部56aの下面に上端が当接する弾性体であるコイルスプリング57が第1ガイド部材51と巻芯12との間に挿入される。この弾性体であるコイルスプリング57の下端が接触する段部12dが巻芯12の周囲に形成され、このコイルスプリング57は伸長しようとする弾性力により係止部56aを介してリング部材56を上方に付勢するように構成される。そして、図1に示すように、第2ガイド部材52が巻芯12の先端に嵌入状態で弾性体57の付勢力に抗してリング部材56とともに筒状ボビン19の端縁が隙間51dに進入し、図2に示すように、第2ガイド部材52が巻芯12の先端から離脱状態で弾性体57はリング部材56を介して筒状ボビン19をその隙間51dから排出するように構成される。   A ring member 56 having the same diameter as that of the cylindrical bobbin 19 is inserted into the gap 51 d between the first guide member 51 and the core 12. The ring member 56 has a lower end of the ring member 56 integrally formed with a doughnut-shaped engaging portion 56a, and a coil spring 57, which is an elastic body whose upper end abuts against the lower surface of the engaging portion 56a. It is inserted between the member 51 and the core 12. A step portion 12d with which the lower end of the coil spring 57, which is an elastic body, contacts is formed around the core 12, and the coil spring 57 moves the ring member 56 upward through the locking portion 56a by the elastic force to be extended. Configured to be energized. As shown in FIG. 1, the edge of the cylindrical bobbin 19 enters the gap 51 d together with the ring member 56 against the urging force of the elastic body 57 with the second guide member 52 fitted in the tip of the core 12. As shown in FIG. 2, the elastic body 57 is configured to discharge the cylindrical bobbin 19 from the gap 51 d via the ring member 56 when the second guide member 52 is detached from the tip of the core 12. .
図8に示すように、巻芯12におけるフランジ部12cには、第1ガイド部材51における固定部51bを包囲するような水平な円盤61がその巻芯12と同軸に設けられる。第1ガイド部材51の上縁に形成された凹溝51cの延長上に位置する円盤61の周囲には、巻き初めの線材18を把持する把持具62と、巻き終わりの線材18を係止する係止具63が設けられる。把持具62には、そこに把持された線材18を把持具62から離脱させる操作ボタン62aが下方に突出して設けられ、その操作ボタン62aを押し上げるように操作するドーナツ状の操作板64が円盤61に平行に設けられる。上板11aに設けられた包囲部材17には、出没軸66aを鉛直方向上方に突出させた複数のエアシリンダ66が埋設され、それら複数のエアシリンダ66における出没軸66aの上端に操作板64が取付けられる。そして、これら複数のエアシリンダ66の出没軸66aを突出させることにより操作板64を上昇可能に構成され、上昇した操作板64は把持具62における操作ボタン62aを押し上げてその把持具62に把持された線材18を把持具62から離脱させるように構成される。   As shown in FIG. 8, a horizontal disk 61 surrounding the fixing portion 51 b of the first guide member 51 is provided on the flange portion 12 c of the winding core 12 coaxially with the winding core 12. A gripping tool 62 for gripping the wire rod 18 at the beginning of winding and the wire rod 18 at the end of winding are locked around the disk 61 positioned on the extension of the concave groove 51 c formed on the upper edge of the first guide member 51. A locking tool 63 is provided. The gripping tool 62 is provided with an operation button 62a that protrudes downward from the gripping tool 62 so that the wire 18 gripped on the gripping tool 62 is released from the gripping tool 62, and a donut-shaped operation plate 64 that is operated to push up the operation button 62a. Is provided in parallel. A plurality of air cylinders 66 with protruding and retracting shafts 66a protruding vertically upward are embedded in the surrounding member 17 provided on the upper plate 11a, and an operation plate 64 is provided at the upper ends of the protruding and protruding shafts 66a of the plurality of air cylinders 66. Mounted. The operation plate 64 can be raised by projecting the projecting shafts 66 a of the plurality of air cylinders 66, and the raised operation plate 64 pushes up the operation button 62 a in the gripping tool 62 and is gripped by the gripping tool 62. The wire 18 is configured to be detached from the gripping tool 62.
図9に示すように、この巻線機10は、巻芯12のX軸方向に隣接して線材18を先端から繰り出すノズル71を有し、このノズル71を移動させる移動機構72が設けられる。この実施の形態における移動機構72は、2軸方向の駆動部72a,72cを組み合わせてなり、前後方向駆動部72aと、上下方向駆動部72cとを具備する。これらの駆動部72a,72cは、駆動方向X,Zに沿って略同一の駆動機構とされる。上下方向駆動部72cは基台11に鉛直に固定され、X軸方向に延びる前後方向駆動部72aが上下方向駆動部72cに対して上下方向に移動可能に配される。そして、前後方向駆動部72aにノズル71が前後方向駆動部72aに対して前後方向に移動可能に設けられる。これらの駆動部72a,72cの組み合わせによりこのノズル71移動機構72は、そのノズル71をX軸及びZ軸の2軸方向の任意の方向に移動可能に構成される。なお、図示しないが、このノズル71には、このノズル71から繰り出した線材18を把持する把持機構と、線材18を切断するカッタが設けられる。   As shown in FIG. 9, the winding machine 10 includes a nozzle 71 that feeds the wire 18 from the tip adjacent to the core 12 in the X-axis direction, and a moving mechanism 72 that moves the nozzle 71 is provided. The moving mechanism 72 in this embodiment is a combination of biaxial drive units 72a and 72c, and includes a front-rear direction drive unit 72a and a vertical drive unit 72c. The drive units 72a and 72c are substantially the same drive mechanism along the drive directions X and Z. The vertical drive unit 72c is vertically fixed to the base 11, and a front / rear drive unit 72a extending in the X-axis direction is arranged to be movable in the vertical direction with respect to the vertical drive unit 72c. And the nozzle 71 is provided in the front-back direction drive part 72a so that a movement to the front-back direction drive part 72a is possible in the front-back direction. The nozzle 71 moving mechanism 72 is configured to be able to move the nozzle 71 in an arbitrary direction of the two axes of the X axis and the Z axis by a combination of the driving units 72a and 72c. Although not shown, the nozzle 71 is provided with a gripping mechanism for gripping the wire 18 fed from the nozzle 71 and a cutter for cutting the wire 18.
また、基台11には熱風機81が設けられ、その熱風機81には熱風を吹き出すエアノズル81aが移動可能に設けられる。エアノズル81aはその吹き出し端を巻芯12の線材18が巻回される先端に臨む第1位置とその先端から離間した第2位置の間を移動可能に構成される。そして、エアノズル81aは通常第2位置にあるけれども、巻芯12の先端に巻回される線材18の絶縁皮膜が加熱により溶融し冷却して固着するようなものである場合に、その巻線時に熱風機81は必要に応じて第2位置から第1位置にエアノズル81aを移動して熱風を吹き出し、巻回される線材18の絶縁皮膜を溶融固着可能に構成される。   The base 11 is provided with a hot air blower 81, and an air nozzle 81 a for blowing the hot air is movably provided on the hot air blower 81. The air nozzle 81a is configured to be able to move between a first position facing the tip end where the wire 18 of the core 12 is wound and a second position spaced from the tip end of the air nozzle 81a. When the air nozzle 81a is normally in the second position but the insulating film of the wire 18 wound around the tip of the core 12 is melted by heating and cooled and fixed, The hot air blower 81 is configured to move the air nozzle 81a from the second position to the first position as needed to blow hot air and melt and fix the insulating film of the wound wire 18.
次に、上記巻線機を用いて線材を巻回する空芯コイルの製造方法ついて説明する。   Next, the manufacturing method of the air-core coil which winds a wire using the said winding machine is demonstrated.
この空芯コイルの製造方法は、周方向に複数に分割された分割片12bを先端に有する巻芯12の複数の分割片12bの互いの間隔を拡げて先端外径を拡大させる巻芯拡大工程と、その巻芯12の拡大した先端外周に線材18を巻回して巻回された線材18から成る空芯コイルを巻芯12の先端に形成する線材巻回工程と、その複数の分割片12bの互いの間隔を縮めて空芯コイルが形成された巻芯12の先端外径を縮小させる巻芯縮径工程と、巻芯12の縮小した先端外周から空芯コイルを抜き取るコイル抜き取り工程とを有する。   This air-core coil manufacturing method expands the outer diameter of the tip by widening the distance between the plurality of split pieces 12b of the core 12 having a tip 12b divided into a plurality of pieces 12b divided in the circumferential direction. And a wire winding step of forming an air core coil comprising the wire 18 wound around the enlarged outer periphery of the core 12 at the tip of the core 12, and a plurality of divided pieces 12b. A core core diameter reducing step for reducing the outer diameter of the tip end of the core 12 on which the air core coil is formed by reducing the distance between them, and a coil extracting step for extracting the air core coil from the reduced outer periphery of the tip end of the core 12. Have.
ここで、空芯コイルは筒状ボビン19の周囲に形成しても良い。この場合には、巻芯12の先端外径を拡大する巻芯拡大工程の以前に、先端外径を縮小させた巻芯12の先端に筒状ボビン19を嵌入するボビン嵌入工程が行われる。すると、線材巻回工程において線材18が筒状ボビン19の外周に巻回され、コイル抜き取り工程では空芯コイルの抜き取りが筒状ボビン19とともに行われることになる。この実施の形態では、筒状ボビン19の周囲に空芯コイルを形成する場合を説明するものとし、以下にその場合の各工程を説明する。   Here, the air-core coil may be formed around the cylindrical bobbin 19. In this case, a bobbin inserting step of inserting the cylindrical bobbin 19 into the tip of the core 12 whose tip outer diameter is reduced is performed before the core expanding step of expanding the tip outer diameter of the core 12. Then, the wire 18 is wound around the outer periphery of the cylindrical bobbin 19 in the wire winding process, and the air core coil is extracted together with the cylindrical bobbin 19 in the coil extraction process. In this embodiment, the case where an air-core coil is formed around the cylindrical bobbin 19 will be described, and each step in that case will be described below.
<ボビン嵌入工程>
この工程では、先端外径を縮小させた巻芯12の先端に筒状ボビン19を嵌入する。第2ガイド部材52が設けられた上記巻線機10を用いるこの実施の形態では、図9におけるサーボモータ53dを駆動してボールねじ53eを回転させることにより第2ガイド部材52を第2位置にして巻芯12の上方空間を開放させ、その上方が開放された巻芯12の先端に筒状ボビン19(図1)を嵌入する。その後、サーボモータ53dを駆動してボールねじ53eを逆方向に回転させて第2ガイド部材52を巻芯12の上方に位置する第1位置に位置させる。そして、巻芯昇降機構20における巻芯昇降モータ21を駆動させ、その昇降部材23を延長管24とともに上昇させて、その延長管24に設けられて上昇する巻芯12の先端に第2ガイド部材52を嵌入させる。
<Bobbin insertion process>
In this step, the cylindrical bobbin 19 is fitted into the tip of the core 12 whose tip outer diameter is reduced. In this embodiment using the winding machine 10 provided with the second guide member 52, the second guide member 52 is moved to the second position by driving the servo motor 53d in FIG. 9 and rotating the ball screw 53e. Then, the upper space of the core 12 is opened, and the cylindrical bobbin 19 (FIG. 1) is fitted into the tip of the core 12 whose upper side is open. Thereafter, the servo motor 53d is driven to rotate the ball screw 53e in the reverse direction, thereby positioning the second guide member 52 at the first position located above the core 12. And the core raising / lowering motor 21 in the core raising / lowering mechanism 20 is driven, the raising / lowering member 23 is raised with the extension pipe 24, and the 2nd guide member is provided at the front-end | tip of the core 12 provided in the extension pipe 24 and rising. 52 is inserted.
すると、図1に示すように、巻芯12に嵌入した状態で第2ガイド部材52と巻芯12の間に形成された隙間52cに筒状ボビン19の上側における端縁が進入する。それとともに、第2ガイド部材52が巻芯12の先端に嵌入するので、その第2ガイド部材52は弾性体57の付勢力に抗して巻芯12に嵌入された筒状ボビン19をリング部材56とともに下方に押しやり、筒状ボビン19の下側における端縁は第1ガイド部材51と巻芯12の間の隙間51dに進入することになる。即ち、巻芯12の先端に筒状ボビン19を嵌入した後であって線材18の巻回以前に、筒状ボビン19の一方の端縁を巻芯12に嵌入された第1ガイド部材51と巻芯12との間の隙間51dに進入させるとともに、巻芯12の先端側に第2ガイド部材52を嵌入して筒状ボビン19の他方の端縁を第2ガイド部材52と巻芯12との間の隙間52cに進入させる。   Then, as shown in FIG. 1, the edge on the upper side of the cylindrical bobbin 19 enters the gap 52 c formed between the second guide member 52 and the core 12 while being fitted into the core 12. At the same time, since the second guide member 52 is fitted into the tip of the core 12, the second guide member 52 resists the urging force of the elastic body 57, and the cylindrical bobbin 19 fitted into the core 12 is connected to the ring member. 56, the lower edge of the cylindrical bobbin 19 enters the gap 51 d between the first guide member 51 and the core 12. That is, after the cylindrical bobbin 19 is fitted into the tip of the core 12 and before the wire 18 is wound, the first guide member 51 having one end of the cylindrical bobbin 19 fitted into the core 12 and The second guide member 52 is inserted into the front end side of the core 12 so that the other end edge of the cylindrical bobbin 19 is connected to the second guide member 52 and the core 12. To enter the gap 52c.
<巻芯拡大工程>
この工程では、周方向に複数に分割された分割片12bを先端に有する巻芯12の複数の分割片12bの互いの間隔を拡げて先端外径を拡大させる。この先端外径の拡大は、操作棒移動機構30により巻芯12に対して操作棒13を移動させ、その操作棒13の先端に設けられた操作片13aを複数の分割片12bの中央に進入させることにより行われる。具体的には、操作棒移動機構30における操作用モータ32を駆動して、その回転軸32aに連結されたボールねじ33を回転させて操作部材34を下降させ、その操作部材34に下端が枢支された延長棒36を操作棒13とともに下降させる。すると、その操作棒13の先端に設けられた操作片13aは巻芯12先端の複数の分割片12bの中央に上方から進入してその周囲が巻芯12の内周に接触し、図2の実線矢印で示すように、その操作片13aを更に下方に進入させることによりその巻芯12の先端外径を拡大させる。このように巻芯12の先端外径を拡大することによりその先端に嵌入された筒状ボビン19を内側から支持してその筒状ボビン19が巻芯12に対してずれるようなことを禁止する。
<Core expansion process>
In this step, the outer diameter of the tip is increased by increasing the interval between the plurality of divided pieces 12b of the core 12 having the divided pieces 12b divided into a plurality in the circumferential direction. To increase the outer diameter of the tip, the operating rod 13 is moved with respect to the core 12 by the operating rod moving mechanism 30, and the operating piece 13a provided at the tip of the operating rod 13 enters the center of the plurality of divided pieces 12b. Is done. Specifically, the operating motor 32 in the operating rod moving mechanism 30 is driven, the ball screw 33 connected to the rotating shaft 32a is rotated to lower the operating member 34, and the lower end of the operating member 34 is pivoted. The supported extension rod 36 is lowered together with the operation rod 13. Then, the operation piece 13a provided at the tip of the operation rod 13 enters the center of the plurality of divided pieces 12b at the tip of the core 12 from above, and its periphery comes into contact with the inner periphery of the core 12, as shown in FIG. As indicated by the solid line arrow, the outer diameter of the distal end of the core 12 is increased by further moving the operating piece 13a downward. Thus, by enlarging the outer diameter of the distal end of the core 12, the cylindrical bobbin 19 fitted to the distal end is supported from the inside, and the cylindrical bobbin 19 is prohibited from being displaced from the core 12. .
<線材巻回工程>
この工程では、巻芯12の拡大した先端外周に線材18を巻回して巻回された線材18から成る空芯コイル90(図1〜図3)を巻芯12の先端に形成する。この実施の形態では、空芯コイル90は筒状ボビン19の周囲に形成するので、この線材巻回工程においては、第1ガイド部材51と第2ガイド部材52の間の筒状ボビン19の外周に線材18を巻回する。具体的には、ノズル71(図9)から繰り出された線材18(図3)の端部を巻き初めの線材18として円盤61の周囲に設けられた一方の把持具62(図8)に把持させる。図8に示すように、把持具62による把持は、包囲部材17に設けられた複数のエアシリンダ66における出没軸66aを上方に突出させて操作板64を上昇させ、上昇した操作板64により把持具62における操作ボタン62aを押し上げてその把持具62を開放させ、その開放させた把持具62にノズル71から繰り出された線材18を挿通させた後に再び操作板64を下降させて把持具62における操作ボタン62aを下げ、これによりノズル71から繰り出された線材18を把持具62に把持させる。
<Wire winding process>
In this step, an air core coil 90 (FIGS. 1 to 3) composed of the wire 18 wound around the enlarged outer periphery of the end of the core 12 is formed at the end of the core 12. In this embodiment, since the air-core coil 90 is formed around the cylindrical bobbin 19, the outer periphery of the cylindrical bobbin 19 between the first guide member 51 and the second guide member 52 in this wire winding process. The wire 18 is wound around. Specifically, the end of the wire 18 (FIG. 3) fed out from the nozzle 71 (FIG. 9) is gripped by one gripping tool 62 (FIG. 8) provided around the disk 61 as the wire 18 at the beginning of winding. Let As shown in FIG. 8, gripping by the gripping tool 62 is performed by raising the operation plate 64 by projecting the protruding and retracting shafts 66 a of the plurality of air cylinders 66 provided in the surrounding member 17, and holding the operation plate 64. When the operation button 62 a of the tool 62 is pushed up to release the gripping tool 62, the wire 18 fed from the nozzle 71 is inserted into the opened gripping tool 62, and then the operation plate 64 is lowered again to hold the gripping tool 62. The operation button 62 a is lowered, whereby the wire rod 18 fed out from the nozzle 71 is gripped by the gripping tool 62.
そして、その巻き初めの線材18を第1ガイド部材51の上縁に形成された凹溝51c(図3)に案内した後、図5及び図6における巻芯回転駆動機構40の回転モータ43を駆動して第2プーリ44の回転をベルト46を介して第1プーリ42に伝達し、回転部材41にスプライン結合された延長管24を巻芯12とともに回転させる。これにより図3に示すように、ノズル71の先端から繰り出される線材18を第1ガイド部材51と第2ガイド部材52の間の筒状ボビン19の外周に巻回する。そして、この巻回時にノズル71移動機構72(図9)によりノズル71をZ軸方向に往復移動させて線材18をその筒状ボビン19に整列巻きする。所定の回数線材18を巻回させた後には、ノズル71から繰り出された線材18を第1ガイド部材51の上縁に形成された凹溝51cに案内した後、巻き終わりの線材18として円盤61の周囲に設けられた係止具63(図8)に係止する。このように筒状の筒状ボビン19に線材18を巻回して筒状ボビン19の周囲に空芯コイル90を形成する。   Then, after guiding the wire 18 at the beginning of winding into a groove 51c (FIG. 3) formed in the upper edge of the first guide member 51, the rotary motor 43 of the core rotation drive mechanism 40 in FIGS. By driving, the rotation of the second pulley 44 is transmitted to the first pulley 42 via the belt 46, and the extension pipe 24 splined to the rotating member 41 is rotated together with the core 12. As a result, as shown in FIG. 3, the wire 18 fed from the tip of the nozzle 71 is wound around the outer periphery of the cylindrical bobbin 19 between the first guide member 51 and the second guide member 52. During this winding, the nozzle 71 is reciprocated in the Z-axis direction by the nozzle 71 moving mechanism 72 (FIG. 9), and the wire 18 is aligned and wound around the cylindrical bobbin 19. After winding the wire 18 a predetermined number of times, the wire 18 fed from the nozzle 71 is guided to the concave groove 51 c formed on the upper edge of the first guide member 51, and then the disc 61 is used as the wire 18 at the end of winding. Is locked to a locking tool 63 (FIG. 8) provided around the. In this manner, the wire 18 is wound around the cylindrical bobbin 19 to form the air-core coil 90 around the cylindrical bobbin 19.
ここで、線材18の絶縁皮膜が加熱により溶融し冷却して固着するようなものである場合、図9に示す熱風機81におけるエアノズル81aを第2位置から第1位置に移動させ、形成途中の又は既に形成されたコイル90(図1〜図3)に熱風を吹き付け、その線材18の絶縁皮膜を溶融固着させて線材18を相互に接着するとともに、ボビン14にこのコイル90を接着して整列巻きされた線材18からなるコイル90の形状がその後に崩れるようなことを防止する。なおエアノズル81aは、コイル90が形成された後に、第1位置から第2位置へ再び移動させておくことになる。   Here, when the insulating coating of the wire 18 is melted by heating and fixed by cooling, the air nozzle 81a in the hot air blower 81 shown in FIG. 9 is moved from the second position to the first position, Alternatively, hot air is blown onto the coil 90 (FIGS. 1 to 3) that has already been formed, and the insulating film of the wire 18 is melted and bonded to bond the wire 18 to each other, and the coil 90 is bonded to the bobbin 14 and aligned. It prevents that the shape of the coil 90 which consists of the wound wire 18 collapses after that. The air nozzle 81a is moved again from the first position to the second position after the coil 90 is formed.
<巻芯縮径工程>
この工程では、複数の分割片12bの互いの間隔を縮めて空芯コイル90が形成された巻芯12の先端外径を縮小させる。この先端外径の縮小は、操作棒移動機構30により巻芯12に対して操作棒13を移動させ、その操作棒13の先端に設けられた操作片13aを図2の破線で示すように上方に移動させることにより行われる。具体的には、図4における操作棒移動機構30における操作用モータ32を駆動して、その回転軸に連結されたボールねじを回転させて操作部材34を上昇させ、その操作部材34に下端が枢支された延長棒36を操作棒13とともに上昇させる。すると、その操作棒13の先端に設けられた操作片13aは巻芯12先端に進入した状態から図2の破線で示すように上方に移動して離間し、巻芯12の弾性により操作片13aが巻芯12の先端から上方に離脱するとその巻芯12の拡大した先端外径は縮小する。
<Core diameter reduction process>
In this step, the outer diameter of the tip of the core 12 on which the air-core coil 90 is formed is reduced by reducing the interval between the plurality of divided pieces 12b. To reduce the outer diameter of the tip, the operating rod 13 is moved with respect to the core 12 by the operating rod moving mechanism 30, and the operating piece 13a provided at the tip of the operating rod 13 is moved upward as shown by the broken line in FIG. It is done by moving to. Specifically, the operating motor 32 in the operating rod moving mechanism 30 in FIG. 4 is driven, the ball screw connected to the rotating shaft is rotated to raise the operating member 34, and the operating member 34 has a lower end. The pivoted extension rod 36 is raised together with the operation rod 13. Then, the operation piece 13 a provided at the tip of the operation rod 13 moves upward as shown by the broken line in FIG. 2 from the state of entering the tip of the core 12, and the operation piece 13 a due to the elasticity of the core 12. When the detachment is upward from the tip of the core 12, the enlarged outer diameter of the core 12 is reduced.
<コイル抜き取り工程>
この工程では、巻芯12の縮小した先端外周から空芯コイル90を抜き取る。筒状ボビン19の周囲に空芯コイル90を形成するこの実施の形態では、このコイル抜き取り工程において、空芯コイル90の抜き取りは筒状ボビン19とともに行われることになる。具体的には、図4の巻芯昇降機構20における巻芯昇降モータ21を駆動させ、その回転軸21aに連結されたボールねじ22に螺合された昇降部材23を延長管24とともに下降させて、その延長管24に設けられて下降する巻芯12の先端から第2ガイド部材52を離脱させる。第2ガイド部材52が巻芯12から離脱すると、第1ガイド部材51と巻芯12の間に設けられた図1に示す弾性体57はリング部材56を介して筒状ボビン19をその間の隙間から排出する。そして、図9に示すガイド部材可動機53におけるサーボモータ53dを駆動してボールねじ53eを回転させ、第2ガイド部材52を第2位置にして巻芯12の上方空間を開放させる。
<Coil extraction process>
In this step, the air core coil 90 is extracted from the outer periphery of the reduced end of the core 12. In this embodiment in which the air core coil 90 is formed around the cylindrical bobbin 19, the air core coil 90 is extracted together with the cylindrical bobbin 19 in this coil extraction step. Specifically, the core raising / lowering motor 21 in the core raising / lowering mechanism 20 of FIG. 4 is driven, and the elevating member 23 screwed to the ball screw 22 connected to the rotating shaft 21a is lowered together with the extension pipe 24. Then, the second guide member 52 is detached from the tip of the core 12 that is provided on the extension pipe 24 and descends. When the second guide member 52 is detached from the core 12, the elastic body 57 shown in FIG. 1 provided between the first guide member 51 and the core 12 passes the ring bobbin 19 between the cylindrical bobbin 19 and the gap therebetween. To discharge from. Then, the servo motor 53d in the guide member movable machine 53 shown in FIG. 9 is driven to rotate the ball screw 53e, so that the space above the core 12 is opened with the second guide member 52 in the second position.
一方、図8に示す包囲部材17に設けられた複数のエアシリンダ66における出没軸66aを上方に突出させて操作板64を上昇させ、上昇した操作板64により把持具62における操作ボタン62aを押し上げてその把持具62に把持されていた巻き初めの線材18をその把持具62から外す。それとともに、コイルの巻き終わりであって係止具63に係止された線材18をノズル71近傍に設けられた図示しない把持機構により把持して、その把持機構と係止具63の間の線材18を図示しないカッタにおいて切断する。その後、筒状ボビン19の周囲に形成された空芯コイル90をその筒状ボビン19とともに巻芯12の上方空間に移動させてその巻芯12から取り外す。これにより、筒状ボビン19に巻回された線材18からなる空芯コイル90を得ることができる。   On the other hand, the operation shaft 64 is raised by projecting the protruding and retracting shafts 66a of the plurality of air cylinders 66 provided on the surrounding member 17 shown in FIG. 8, and the operation button 62a of the gripping tool 62 is pushed up by the raised operation plate 64. Then, the wire 18 at the beginning of winding that has been gripped by the gripping tool 62 is removed from the gripping tool 62. At the same time, the wire 18 that is the end of winding of the coil and is locked to the locking tool 63 is gripped by a gripping mechanism (not shown) provided in the vicinity of the nozzle 71, and the wire rod between the gripping mechanism and the locking tool 63. 18 is cut by a cutter (not shown). Thereafter, the air core coil 90 formed around the cylindrical bobbin 19 is moved together with the cylindrical bobbin 19 to the space above the core 12 and removed from the core 12. Thereby, the air-core coil 90 which consists of the wire 18 wound around the cylindrical bobbin 19 can be obtained.
以上述べたように、本発明では、コイル用の線材18の巻線時にはその線材18に所定のテンションを加えて巻芯12に巻付けるにもかかわらず、その巻芯12に巻付けられた線材18からなるコイル90をその巻芯12から取り外す際に、その巻芯12の線材18が巻回された先端の外径を縮小させる。空芯コイル90を筒状ボビン19の周囲に形成するこの実施の形態では、その空芯コイル90の抜き取りが筒状ボビン19とともに行われることになるけれども、その抜き取り時に、巻芯12先端の外径を縮小させることにより、巻芯12の外周と筒状ボビン19の内周との間に隙間を生じさせる。これにより、筒状ボビン19の内周と巻芯12とが著しく摺れるようなことは回避される。よって、線材18の皮膜に損傷を与えることなくコイル90を巻芯12から比較的容易に取り外すことが可能になる。   As described above, according to the present invention, the wire rod wound around the core 12 is wound around the core 12 by applying a predetermined tension to the wire 18 during winding of the coil wire 18. When the coil 90 composed of 18 is removed from the core 12, the outer diameter of the tip around which the wire 18 of the core 12 is wound is reduced. In this embodiment in which the air core coil 90 is formed around the cylindrical bobbin 19, the air core coil 90 is extracted together with the cylindrical bobbin 19. By reducing the diameter, a gap is generated between the outer periphery of the core 12 and the inner periphery of the cylindrical bobbin 19. Thereby, it is avoided that the inner periphery of the cylindrical bobbin 19 and the core 12 are slid significantly. Therefore, the coil 90 can be removed from the core 12 relatively easily without damaging the film of the wire 18.
また、筒状ボビン19の周囲に線材18を巻回する際に、筒状ボビン19の一方の端縁を第1ガイド部材51と巻芯12との間の隙間51dに進入させるとともに、筒状ボビン19の他方の端縁を第2ガイド部材52と巻芯12との間の隙間52cに進入させることにより、筒状ボビン19の外周の所望の範囲に線材18を巻回することができる。そして、筒状ボビン19の周囲に線材18を巻回してコイル90を得た後、巻芯12の先端から第2ガイド部材52を離脱させると、弾性体57の付勢力により筒状ボビン19の一方の端縁を第1ガイド部材51と巻芯12との間の隙間51dから抜き出すことができるので、更に容易に空芯コイル90を巻芯12から取り外すことができる。   Further, when the wire 18 is wound around the cylindrical bobbin 19, one end edge of the cylindrical bobbin 19 enters the gap 51 d between the first guide member 51 and the core 12, and the cylindrical shape By causing the other end edge of the bobbin 19 to enter the gap 52 c between the second guide member 52 and the core 12, the wire 18 can be wound around a desired range on the outer periphery of the cylindrical bobbin 19. Then, after winding the wire 18 around the cylindrical bobbin 19 to obtain the coil 90, when the second guide member 52 is detached from the tip of the core 12, the urging force of the elastic body 57 causes the cylindrical bobbin 19 to Since one end edge can be extracted from the gap 51d between the first guide member 51 and the core 12, the air-core coil 90 can be removed from the core 12 more easily.
なお、上述した実施の形態では、筒状ボビン19の周囲に空芯コイル90を形成する場合を説明したけれども、この筒状ボビン19としては、巻いた紙からなる紙製ボビンや、樹脂から成る樹脂製のボビンや、非磁性薄膜から成るようなボビンが例示される。そして、樹脂製ボビンとしては、例えばポリイミドフィルム(商標名;カプトン)から成る樹脂製ボビン14が好適である。一方、筒状ボビン19を用いることなく線材18を直接巻芯12に巻回するようにして、その巻芯12の周囲に空芯コイル90直接形成しても良い。このように筒状ボビン19を用いない場合であっても、その空芯コイル90を巻芯12から取り外す際に、その巻芯12の外径を小さくすることにより、巻芯12の外周とコイル90の内周との間に隙間を生じさせることができる。このように巻芯12の外周とコイル90の内周との間に隙間が生じると、その取り外し時にコイル90の内周における線材18の表面皮膜と巻芯12とが摺れることもなくなる。すると、線材18の皮膜に損傷を与えることなく比較的容易にコイル90を巻芯12から取り外すことが可能になる。   In the above-described embodiment, the case where the air-core coil 90 is formed around the cylindrical bobbin 19 has been described. However, the cylindrical bobbin 19 is made of a paper bobbin made of rolled paper or a resin. Examples thereof include a resin bobbin and a bobbin made of a nonmagnetic thin film. As the resin bobbin, for example, a resin bobbin 14 made of a polyimide film (trade name; Kapton) is preferable. On the other hand, the wire 18 may be directly wound around the core 12 without using the cylindrical bobbin 19, and the air-core coil 90 may be directly formed around the core 12. Even when the cylindrical bobbin 19 is not used in this way, when the air core coil 90 is removed from the core 12, the outer diameter of the core 12 and the coil are reduced by reducing the outer diameter of the core 12. A gap can be formed between the inner periphery of 90. Thus, when a gap is generated between the outer periphery of the core 12 and the inner periphery of the coil 90, the surface coating of the wire 18 on the inner periphery of the coil 90 and the core 12 are not slid during the removal. Then, the coil 90 can be removed from the core 12 relatively easily without damaging the coating of the wire 18.
10 巻線機
12 巻芯
12b 分割片
13 操作棒
13a 操作片
18 線材
19 筒状ボビン
30 操作棒移動機構
40 巻芯回転駆動機構
51 第1ガイド部材
51d 隙間
52 第2ガイド部材
52c 隙間
56 リング部材
57 弾性体
90 空芯コイル
DESCRIPTION OF SYMBOLS 10 Winding machine 12 Core 12b Dividing piece 13 Operation rod 13a Operation piece 18 Wire material 19 Cylindrical bobbin 30 Operation rod moving mechanism 40 Winding core rotation drive mechanism 51 1st guide member 51d Crevice 52 2nd guide member 52c Crevice 56 Ring member 57 Elastic body 90 Air core coil

Claims (5)

  1. 周方向に複数に分割された分割片(12b)を先端に有し前記複数の分割片(12b)の互いの間隔を拡げ又は縮めることにより先端外径を拡大又は縮小可能に構成された筒状の巻芯(12)と、
    前記巻芯(12)に摺動可能に挿通され前記複数の分割片(12b)の中央に進入し又は離脱して前記巻芯(12)の先端外径を拡大し又は縮小させる円錐台形状の操作片(13a)を有する操作棒(13)と、
    前記巻芯(12)に対して前記操作棒(13)を移動させて前記操作片(13a)を前記複数の分割片(12b)の中央に進入させ又は離脱させる操作棒移動機構(30)と、
    前記操作棒(13)とともに前記巻芯(12)を回転させて前記巻芯(12)の先端外周に線材(18)を巻回する巻芯回転駆動機構(40)と
    前記巻芯(12)に嵌入され前記巻芯(12)の先端に巻回される前記線材(18)の一方の巻幅を規制する第1ガイド部材(51)と、
    前記巻芯(12)の先端側に前記巻芯(12)から離脱可能に嵌入して前記巻芯(12)の先端に巻回される前記線材(18)の他方の巻幅を規制する第2ガイド部材(52)と
    を備えた巻線機。
    A cylindrical shape that has a divided piece (12b) divided into a plurality in the circumferential direction at the tip, and is capable of expanding or reducing the outer diameter of the tip by widening or shrinking the interval between the plurality of divided pieces (12b). No winding core (12),
    A truncated cone shape that is slidably inserted into the core (12) and enters or leaves the center of the plurality of divided pieces (12b) to enlarge or reduce the outer diameter of the tip of the core (12). An operating rod (13) having an operating piece (13a);
    An operating rod moving mechanism (30) for moving the operating rod (13) with respect to the core (12) to cause the operating piece (13a) to enter or leave the center of the plurality of divided pieces (12b); ,
    A core rotation drive mechanism (40) for rotating the core (12) together with the operation rod (13) to wind the wire (18) around the outer periphery of the tip of the core (12) ,
    A first guide member (51) that restricts one winding width of the wire (18) that is fitted into the winding core (12) and wound around the tip of the winding core (12);
    A first one that restricts the other winding width of the wire (18) wound around the tip of the core (12) by being detachably fitted to the tip of the core (12). A winding machine provided with two guide members (52) .
  2. 第1ガイド部材(51)と巻芯(12)の間及び第2ガイド部材(52)と巻芯(12)の間に前記巻芯(12)の先端に嵌入された筒状ボビン(19)の端縁が進入する隙間(51d,52c)がそれぞれ形成された請求項1記載の巻線機。 A cylindrical bobbin (19) fitted at the tip of the core (12) between the first guide member (51) and the core (12) and between the second guide member (52) and the core (12). The winding machine according to claim 1 , wherein gaps (51 d, 52 c) into which the end edges of the windings enter are formed.
  3. 第1ガイド部材(51)と巻芯(12)の間の隙間(51d)に、筒状ボビン(19)と同径のリング部材(56)と、前記リング部材(56)を付勢する弾性体(57)が挿入され、
    第2ガイド部材(52)が前記巻芯(12)の先端に嵌入状態で前記弾性体(57)の付勢力に抗して前記リング部材(56)とともに前記筒状ボビン(19)の端縁が前記隙間(51d)に進入し、前記第2ガイド部材(52)が前記巻芯(12)の先端から離脱状態で前記弾性体(57)は前記リング部材(56)を介して前記筒状ボビン(19)を前記隙間(51d)から排出するように構成された請求項2記載の巻線機。
    In the gap (51d) between the first guide member (51) and the core (12), a ring member (56) having the same diameter as the cylindrical bobbin (19), and an elastic force for biasing the ring member (56) Body (57) is inserted,
    An edge of the cylindrical bobbin (19) together with the ring member (56) against the urging force of the elastic body (57) with the second guide member (52) fitted into the tip of the core (12) Enters the gap (51d), and the second guide member (52) is detached from the tip of the core (12), and the elastic body (57) is formed in the cylindrical shape via the ring member (56). The winding machine according to claim 2 , wherein the bobbin (19) is configured to be discharged from the gap (51d).
  4. 周方向に複数に分割された分割片(12b)を先端に有する巻芯(12)の縮小させた前記先端に筒状ボビン(19)を嵌入し、
    前記筒状ボビン(19)の一方の端縁を前記巻芯(12)に嵌入された第1ガイド部材(51)と前記巻芯(12)との間の隙間(51d)に進入させるとともに、前記巻芯(12)の先端側に第2ガイド部材(52)を嵌入して前記筒状ボビン(19)の他方の端縁を前記第2ガイド部材(52)と前記巻芯(12)との間の隙間(52c)に進入させ、
    前記複数の分割片(12b)の互いの間隔を拡げて先端外径を拡大し、
    前記巻芯(12)の拡大した先端に嵌入された前記第1ガイド部材(51)と前記第2ガイド部材(52)の間の前記筒状ボビン(19)の外周に線材(18)を巻回して巻回された前記線材(18)から成る空芯コイル(90)を前記巻芯(12)の先端に形成し、
    前記複数の分割片(12b)の互いの間隔を縮めて前記空芯コイル(90)が形成された前記巻芯(12)の先端外径を縮小させ、
    前記巻芯(12)の縮小した先端外周から前記空芯コイル(90)を前記筒状ボビン(19)とともに抜き取る
    ことを特徴とする空芯コイルの製造方法。
    A cylindrical bobbin (19) is fitted into the reduced tip of the core (12) having a tip (12b) divided into a plurality of pieces in the circumferential direction ,
    One end of the cylindrical bobbin (19) is inserted into the gap (51d) between the first guide member (51) fitted into the core (12) and the core (12); A second guide member (52) is fitted on the front end side of the core (12), and the other end edge of the cylindrical bobbin (19) is connected to the second guide member (52) and the core (12). Enter the gap (52c) between
    Expanding the distance between the plurality of divided pieces (12b) to increase the outer diameter of the tip,
    A wire rod (18) is wound around the outer periphery of the cylindrical bobbin (19) between the first guide member (51) and the second guide member (52) fitted to the enlarged tip of the core (12). Turn the wire wound by the air-core coil made of (18) (90) is formed on the distal end of the winding core (12),
    Reducing the distance between the plurality of divided pieces (12b) to reduce the outer diameter of the tip of the core (12) on which the air-core coil (90) is formed,
    A method for producing an air-core coil, comprising: extracting the air-core coil (90 ) together with the cylindrical bobbin (19) from a reduced outer periphery of the winding core (12).
  5. 巻芯(12)の先端に空芯コイル(90)を形成した後であって前記巻芯(12)の先端外周から前記空芯コイル(90)を抜き取る以前に、前記巻芯(12)の先端から第2ガイド部材(52)を離脱させ、筒状ボビン(19)を前記空芯コイル(90)とともに軸方向に移動させて前記筒状ボビン(19)の一方の端縁を第1ガイド部材(51)と前記巻芯(12)との間の隙間(51d)から抜き出すことが行われる請求項4記載の空芯コイルの製造方法。
    After forming the air core coil (90) at the tip of the core (12) and before removing the air core coil (90) from the outer periphery of the tip of the core (12), the core (12) The second guide member (52) is detached from the tip, the cylindrical bobbin (19) is moved in the axial direction together with the air-core coil (90), and one end edge of the cylindrical bobbin (19) is moved to the first guide. The manufacturing method of the air core coil of Claim 4 with which extraction is carried out from the clearance gap (51d) between a member (51) and the said core (12).
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JPS53140036U (en) * 1977-04-13 1978-11-06
JPS6364043B2 (en) * 1983-02-15 1988-12-09
JPH0395615U (en) * 1990-01-12 1991-09-30
CN2146078Y (en) * 1993-04-07 1993-11-10 孔令杰 Universal winding mould
JP3562052B2 (en) * 1995-08-17 2004-09-08 株式会社デンソー Manufacturing method of solenoid for magnet switch
JP3456076B2 (en) * 1995-11-24 2003-10-14 松下電器産業株式会社 Winding device
CN2299417Y (en) * 1997-01-27 1998-12-02 周建元 Combination universal-purpose reel spool for electric motor
JP4530319B2 (en) * 2001-04-25 2010-08-25 日特エンジニアリング株式会社 Winding device
DE10153819A1 (en) * 2001-11-05 2003-05-28 Josef Moser Device and method for winding protective films in the form of a coreless roll
JP4070735B2 (en) * 2004-03-04 2008-04-02 株式会社西村製作所 Winding device
CN101752077B (en) * 2010-02-10 2013-03-13 银河电气科技有限公司 Winding method of coil of non-crystalline alloy power transformer and special winding mould device

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JP2012004483A (en) 2012-01-05
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