JP4783348B2 - Flat-formed stranded wire and method for producing flat-formed stranded wire - Google Patents

Flat-formed stranded wire and method for producing flat-formed stranded wire Download PDF

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JP4783348B2
JP4783348B2 JP2007259067A JP2007259067A JP4783348B2 JP 4783348 B2 JP4783348 B2 JP 4783348B2 JP 2007259067 A JP2007259067 A JP 2007259067A JP 2007259067 A JP2007259067 A JP 2007259067A JP 4783348 B2 JP4783348 B2 JP 4783348B2
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wire
layer
flat
stranded wire
twisted
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JP2009087868A (en
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敬司 千田
友紀 田村
章 阿部
敏裕 中川
力男 鈴木
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Hitachi Cable Ltd
J Power Systems Corp
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J Power Systems Corp
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Description

本発明は、平角成形撚線及び平角成形撚線の製造方法に関する。特に、本発明は、電磁気回路等のコイルに用いられる平角成形撚線及び平角成形撚線の製造方法に関する。   The present invention relates to a rectangular formed stranded wire and a method for producing a rectangular formed stranded wire. In particular, the present invention relates to a flat formed stranded wire used for a coil such as an electromagnetic circuit and a method for producing a flat formed stranded wire.

従来の電磁気回路等のコイルに用いられる電気用導体として、例えば、所定の静摩擦係数を有する材料で表面を覆った複数本の導体を撚り合わせて断面平角状に成形した電気用導体が知られている(例えば、特許文献1参照)。この電気用導体は、略円形状の銅線等の導体と、導体の表面に焼き付けられる塗布焼付層と、塗布焼付層の表面に設けられる静摩擦係数0.30以上の材料からなる表面層とを有する断面円形の複数本の絶縁電線素線を備え、複数本の絶縁電線素線を撚り合わせた後、断面平角状に成形される電気用導体である。   As an electric conductor used for a coil of a conventional electromagnetic circuit or the like, for example, an electric conductor formed by twisting a plurality of conductors whose surfaces are covered with a material having a predetermined coefficient of static friction to form a rectangular cross section is known. (For example, refer to Patent Document 1). This electrical conductor includes a substantially circular conductor such as a copper wire, a coating and baking layer baked on the surface of the conductor, and a surface layer made of a material having a static friction coefficient of 0.30 or more provided on the surface of the coating and baking layer. The electrical conductor is provided with a plurality of insulated wire strands having a circular cross section, and is formed into a rectangular cross section after twisting the plurality of insulated wire strands.

特許文献1に記載の電気用導体は、絶縁電線素線の表面に所定の静摩擦係数を有する表面層を備えているので、複数の絶縁電線素線間の滑り性が低減する。したがって、特許文献1に記載の電気用導体は、複数の絶縁電線素線を撚り合わせた後、平角に成形するときに、扁平形となった複数の絶縁電線素線がクロスオーバーすること、及び複数の絶縁電線素線間での隙間が発生することを抑制して形成することができる。   Since the electrical conductor described in Patent Literature 1 includes a surface layer having a predetermined static friction coefficient on the surface of the insulated wire, the slipping property between the plurality of insulated wires is reduced. Therefore, the electrical conductor described in Patent Document 1 crosses over a plurality of flat insulated wires when forming a flat angle after twisting a plurality of insulated wires. It can suppress and form that the clearance gap between several insulated wire strands generate | occur | produces.

また、従来の他の平角成形撚線の製造方法として、例えば、各線材を誘導するマンドレルの直後に集合ダイスを配置したものがある(例えば、特許文献2参照)。この平角成形撚線の製造方法は、公転する複数のボビンから供給される各線材をマンドレルで誘導した後、その直後に配置された集合ダイスで集合して撚り合わせ、その後、撚り合された撚線を成形ロールで平角に成形して平角成形撚線を製造する。
特開平8−36922号公報 特許第2596188号公報
Moreover, as another conventional method for producing a rectangular formed stranded wire, for example, there is a method in which an assembly die is disposed immediately after a mandrel for guiding each wire (see, for example, Patent Document 2). In this method of manufacturing a rectangular formed stranded wire, each wire supplied from a plurality of revolving bobbins is guided by a mandrel, and then gathered together by a gathering die arranged immediately thereafter, and then twisted together. The wire is formed into a flat angle with a forming roll to produce a flat formed stranded wire.
JP-A-8-36922 Japanese Patent No. 2596188

しかし、特許文献1に記載の電気用導体では、複数の絶縁電線素線のそれぞれに表面層を形成することを要する。すなわち、特許文献1に記載の電気用導体の製造においては、表面層を形成する材料を準備する工程、及び表面層を導体表面に形成する工程等を追加することを要するので、電気用導体を構成する材料の低減、及び電気用導体の製造工程の低減に限界があり、更に製造時間の短縮にも限界があった。   However, in the electrical conductor described in Patent Document 1, it is necessary to form a surface layer on each of the plurality of insulated wire elements. That is, in the manufacture of the electrical conductor described in Patent Document 1, it is necessary to add a step of preparing a material for forming the surface layer and a step of forming the surface layer on the conductor surface. There is a limit to the reduction of the constituent materials and the manufacturing process of the electrical conductor, and there is also a limit to shortening the manufacturing time.

また、特許文献2に記載の平角成形撚線の製造方法では、本発明者の推測によると、マンドレルの直後に集合ダイスを設けているため、製造速度を向上することができなかった。   Moreover, in the manufacturing method of the flat forming twisted wire described in Patent Document 2, according to the inventor's estimation, the manufacturing speed could not be improved because the collecting die was provided immediately after the mandrel.

したがって、本発明の目的は、平角成形撚線を構成する材料及び製造工程を増加させずに、撚線のクロスオーバー及び線材間の隙間の発生を抑制して高速度で製造できる平角成形撚線及び平角成形撚線の製造方法を提供することにある。 Accordingly, an object of the present invention, without increasing material and manufacturing process constituting a flat-molded stranded wire, flat-molded stranded wire which can be produced at a high speed by suppressing the occurrence of a gap between the crossover and the wires of the stranded wire Another object of the present invention is to provide a method for manufacturing a flat-shaped stranded wire.

本発明は、上記目的を達成するため、定の本数の第1線材を撚り合わされて平角状に成形された第1の層と、前記第1線材と同径で本数が前記第1線材より4本多い第2線材が前記第1の層の外側に撚り合わされて平角状に成形された第2の層とを含んで構成され、前記第2の層を構成する第2線材は、加工側外周の加工率が当該加工側外周の反対側の外周の加工率に比べて大きくなるように、外部に露出した外周部が圧縮加工されて前記第1の層に押し付けられ変形している平角成形撚線が提供される。 The present invention, in order to achieve the above object, a first layer and, the number in the same diameter as the first wire rod is the first line member molded is Awa twisted first wire rod in the number of Jo Tokoro in rectangular shape The second wire rod is formed by including a second layer in which four more second wire rods are twisted on the outside of the first layer and formed into a flat rectangular shape, and the second wire rod constituting the second layer is processed. as the processing rate of the side periphery is larger than the processing rate of the opposite side of the outer periphery of the working side periphery flat outer peripheral portions exposed to the outside it is compressed processed deformed pressed against the first layer A shaped strand is provided.

また、上記平角成形撚線は、第1の層の線材及び第2の層の線材が同方向撚りで撚り合わされ、第1の層の線材の撚りの傾斜角と第2の層の線材の撚りの傾斜角との差が−3.0度以上+3.0度以下であってもよい。 Further, in the above-mentioned flat-shaped stranded wire , the first layer wire and the second layer wire are twisted in the same direction, and the twist angle of the first layer wire and the second layer wire are twisted. The difference from the tilt angle may be -3.0 degrees or more and +3.0 degrees or less.

また、上記平角成形撚線は、第1の層の線材及び第2の層の線材が交互撚りで撚り合わされてもよい。   Further, the flat-shaped stranded wire may be formed by alternately twisting the wire material of the first layer and the wire material of the second layer.

また、上記平角成形撚線は、第1の層と、第1の層を包囲する第2の層との2層構造で形成されてもよい。更に、上記平角成形撚線は、第1の層の線材の外周及び第2の層の線材の外周が、絶縁塗料でそれぞれ被覆されてもよい。 In addition, the rectangular formed stranded wire may be formed of a two-layer structure including a first layer and a second layer surrounding the first layer. Further, the flat shaped stranded wire, the outer circumference of the wire of the first layer wire outer periphery and a second layer of the at insulation coating may be coated, respectively.

また、本発明は、上記目的を達成するため、繰り出された所定の本数の第1線材をその合流点において合流させて予備撚線を形成する工程と、前記合流点から所定の距離を有する集合点において前記予備撚線の線材を集合させて前記予備撚線を平角状に圧縮成形して第1の層を形成する工程と、外径が前記第1線材と同じで数が前記第1線材より4本多い第2線材を繰り出して当該第2線材を前記第1の層の外周で当該第1の層と合流させて予備撚線を形成する工程と前記第1の層と前記第2線材との合流点から所定の距離を有する集合点において、前記第1の層と前記第2線材による予備撚線とを集合させて前記第2線材を前記第1の層の上に圧縮し前記第2線材を平角状に成形して第2の層を形成する工程とを備える平角成形撚線の製造方法が提供される。 Further, in order to achieve the above object, the present invention includes a step of joining a predetermined number of fed first wires to form a preliminary stranded wire at the junction, and an assembly having a predetermined distance from the junction A step of assembling the pre-twisted wires in a point and compression-molding the pre-twisted wires into a rectangular shape to form a first layer ; and an outer diameter equal to that of the first wire and the number of the first wires More than four second wires are drawn out, and the second wires are joined to the first layer at the outer periphery of the first layer to form a pre-twisted wire, and the first layer and the second At the assembly point having a predetermined distance from the junction with the wire , the first layer and the pre-twisted wire by the second wire are assembled to compress the second wire onto the first layer, and Made in flat-molded stranded wire and forming a second layer by forming a second wire material into rectangular shape A method is provided.

本発明の平角成形撚線の製造方法によれば、平角成形撚線を構成する材料及び製造工程を増加させずに、撚線のクロスオーバー及び線材間の隙間の発生を抑制して高速度で平角成形撚線を製造でき、かつ、撚線のクロスオーバー及び線材間の隙間を抑制した平角成形撚線を提供できる。 According to the method for producing a flat-formed stranded wire of the present invention, without increasing the materials and manufacturing steps constituting the flat-formed stranded wire, the generation of the crossover of the stranded wire and the gap between the wires can be suppressed at a high speed. It can produce a flat-molded stranded wire, and can provide a flat-molded stranded wire which suppresses gaps between crossover and wires of the stranded wire.

[第1の実施の形態]
図1は、本発明の実施の形態に係る平角成形撚線の断面の模式図を示す。
[First Embodiment]
FIG. 1 shows a schematic view of a cross section of a flat-formed stranded wire according to an embodiment of the present invention.

(平角成形撚線10の構造)
本発明の実施の形態に係る平角成形撚線10は、互いに撚り合されて断面平角に形成される第1の層としての複数の第1線材100と、複数の第1線材100の外部から複数の第1線材100を包囲して複数の第1線材100に隣接すると共に、互いに撚り合されて断面平角に形成される第2の層としての複数の第2線材110とを備える。すなわち、本実施形態に係る平角成形撚線10は、第1の層である内層と第2の層である外層との2層構造を有して形成される。
(Structure of flat rectangular stranded wire 10)
The flat-molded stranded wire 10 according to the embodiment of the present invention includes a plurality of first wire rods 100 as a first layer that are twisted together to form a flat cross-section, and a plurality of first wire rods 100 from the outside of the plurality of first wire rods 100. And a plurality of second wires 110 as second layers that are twisted together and formed into a flat cross section while surrounding the first wire 100 and adjacent to the plurality of first wires 100. That is, the flat-molded stranded wire 10 according to the present embodiment is formed to have a two-layer structure of an inner layer that is a first layer and an outer layer that is a second layer.

なお、線材を同心円状に配置して、順次積み重ねるような形で撚り合わせた場合に形成される各同心円内の複数の線材群を「層」と定義する。また、図1は、本実施形態に係る平角成形撚線10の断面の模式図であり、複数の第1線材100及び複数の第2線材110のそれぞれの断面形状は図示した通りとは限らない。   A plurality of wire rod groups in each concentric circle formed when the wire rods are concentrically arranged and twisted in such a manner that they are sequentially stacked are defined as “layers”. Moreover, FIG. 1 is a schematic diagram of a cross section of the flat-shaped stranded wire 10 according to the present embodiment, and the cross-sectional shapes of the plurality of first wire rods 100 and the plurality of second wire rods 110 are not necessarily as illustrated. .

複数の第1線材100及び複数の第2線材110はそれぞれ、線状を有すると共に、断面が略円形の導電性材料から主として形成される。導電性材料は、銅、アルミ等の金属材料である。一例として、複数の第1線材100及び複数の第2線材110はそれぞれ、直径が1.8mmの銅から形成される。また、第1線材100及び第2線材110はそれぞれ、金属材料の表面に、静摩擦係数が所定値以下の良好な滑り性を有する絶縁材料としてのポリエステル樹脂、ポリウレタン樹脂等を含む絶縁塗料を塗布焼き付けて形成することもできる。これにより、第1線材100の外周及び第2線材110の外周はそれぞれ、絶縁材料で被覆される。   Each of the plurality of first wire rods 100 and the plurality of second wire rods 110 has a linear shape and is mainly formed from a conductive material having a substantially circular cross section. The conductive material is a metal material such as copper or aluminum. As an example, the plurality of first wire rods 100 and the plurality of second wire rods 110 are each formed from copper having a diameter of 1.8 mm. In addition, the first wire 100 and the second wire 110 are each baked by applying an insulating paint containing a polyester resin, a polyurethane resin, or the like as an insulating material having a good sliding property having a static friction coefficient of a predetermined value or less to the surface of the metal material. It can also be formed. Thereby, the outer periphery of the 1st wire rod 100 and the outer periphery of the 2nd wire rod 110 are each coat | covered with an insulating material.

なお、平角成形撚線10が形成された後の複数の第1線材100及び複数の第2線材110のそれぞれの断面は、略多角形状である。   Each cross section of the plurality of first wire rods 100 and the plurality of second wire rods 110 after the flat-shaped stranded wire 10 is formed has a substantially polygonal shape.

本実施形態に係る平角成形撚線10は、内層としての複数の第1線材100の第1の所定の本数としての本数より、内層の外側に隣接して設けられる外層としての複数の第2線材110の第2の所定の本数としての本数を多くして形成される。一例として、第2線材110の合計本数を、第1線材100の合計本数よりも4本多くして、平角成形撚線10は形成される。平角成形撚線10は、例えば、16本の第1線材100と20本の第2線材110とから形成される。   The square-shaped stranded wire 10 according to the present embodiment has a plurality of second wires as outer layers provided adjacent to the outside of the inner layer, based on the number of first wires 100 as the first predetermined number as the inner layer. 110 is formed by increasing the number as the second predetermined number. As an example, the square-shaped stranded wire 10 is formed by increasing the total number of the second wires 110 by four more than the total number of the first wires 100. The flat rectangular formed stranded wire 10 is formed of, for example, 16 first wire rods 100 and 20 second wire rods 110.

また、複数の第1線材100と複数の第2線材110とを同方向撚りとして、平角成形撚線10は形成される。この場合、複数の第1線材100の撚りの傾斜角と、複数の第2線材110の撚りの傾斜角との差を−3.0度以上+3.0度以下に設定して、平角成形撚線10は形成される。また、上記傾斜角の差のより好ましい値は、−1.0度以上+1.0度以下である。   In addition, the flat formed wire 10 is formed by twisting the plurality of first wires 100 and the plurality of second wires 110 in the same direction. In this case, the difference between the twist inclination angle of the plurality of first wire rods 100 and the twist inclination angle of the plurality of second wire rods 110 is set to be −3.0 degrees or more and +3.0 degrees or less, and the flat rectangular forming twist Line 10 is formed. A more preferable value of the difference in the tilt angle is −1.0 degree or more and +1.0 degree or less.

また、複数の第1線材100と複数の第2線材110とから形成される平角成形撚線10の断面形状は略平角形状であり、一例として、縦寸法が約7mm、横寸法が約18mmの略長方形状である。   In addition, the cross-sectional shape of the flat formed twisted wire 10 formed from the plurality of first wire rods 100 and the plurality of second wire rods 110 is a substantially rectangular shape. As an example, the vertical dimension is about 7 mm and the horizontal dimension is about 18 mm. It is substantially rectangular.

なお、複数の第1線材100と複数の第2線材110とを交互撚りとして、平角成形撚線10を形成してもよい。また、第1線材100及び第2線材110はそれぞれ、予め平角に成形した線材から形成することもできる。   In addition, you may form the square forming twisted wire 10 by making the some 1st wire 100 and the some 2nd wire 110 into alternate twist. Moreover, the 1st wire 100 and the 2nd wire 110 can each be formed from the wire shape | molded previously in the flat angle.

(平角成形撚線10の製造方法)
図2は、本発明の実施の形態に係る平角成形撚線の製造工程の概略を示す。
(Manufacturing method of the flat wire 10)
FIG. 2 shows the outline of the manufacturing process of the flat wire forming twisted wire which concerns on embodiment of this invention.

まず、撚線機20のケージに装着されている複数の第1ボビン200のそれぞれに巻きついている第1線材100のそれぞれが、第1マンドレル210の方向に引き出されて誘導される。そして、第1マンドレル210の合流点としての先端部分において、複数の第1線材100が合流して予備撚線が形成される。続いて、第1マンドレル210の先端部分から所定の距離を有する集合点としての第1集合ダイス220において、第1マンドレル210において形成された予備撚線から1本の撚線が形成される。   First, each of the first wire rods 100 wound around each of the plurality of first bobbins 200 attached to the cage of the twisting machine 20 is drawn out in the direction of the first mandrel 210 and guided. And in the front-end | tip part as a confluence | merging point of the 1st mandrel 210, the some 1st wire 100 joins and a preliminary | backup twisted wire is formed. Subsequently, in the first collecting die 220 as a collecting point having a predetermined distance from the tip portion of the first mandrel 210, one stranded wire is formed from the preliminary stranded wire formed in the first mandrel 210.

この場合に、第1マンドレル210と第1集合ダイス220との間に、通常は設けない所定の距離としての所定の間隔210aを設ける。すなわち、複数の第1線材100が合流する位置である第1マンドレル210の先端部分から、複数の第1線材100が1本に集合する位置である第1集合ダイス220の入り口部分までに、所定の間隔210aを設ける。   In this case, a predetermined interval 210 a is provided between the first mandrel 210 and the first collecting die 220 as a predetermined distance that is not normally provided. That is, a predetermined distance from the front end portion of the first mandrel 210 where the plurality of first wire rods 100 join to the entrance portion of the first assembly die 220 where the plurality of first wire rods 100 gather together is predetermined. Spacing 210a is provided.

所定の間隔210aは、第1マンドレル210から第1集合ダイス220に誘導される複数の第1線材100のそれぞれが揺れ動いて交差等しない範囲で決定される。一例として、第1マンドレル210と第1集合ダイス220との間の間隔210aは、約10cmである。そして、撚り合された第1の層としての複数の第1線材100は、第1集合ダイス220から所定の距離を有する成形点としての第1圧延ロール230へと供給される。   The predetermined interval 210a is determined in a range in which each of the plurality of first wire rods 100 guided from the first mandrel 210 to the first assembly die 220 does not swing and intersect. As an example, the distance 210a between the first mandrel 210 and the first collecting die 220 is about 10 cm. The plurality of first wire rods 100 as the first layers twisted together are supplied from the first collective die 220 to the first rolling roll 230 as a forming point having a predetermined distance.

続いて、撚り合された複数の第1線材100を、第1圧延ロール230において断面平角状を有する平角成形撚線5に圧縮成形する。第1圧延ロール230は、一例として、4つのロールを有する。そして、第1圧延ロール230の4つのロールは、中央部に矩形状の孔を有するように互いに垂直に交差して配置される。第1圧延ロール230は、第1集合ダイス220を通過した複数の第1線材100を当該孔において断面平角状に圧延する。そして、第1圧延ロール230は、形成された平角成形撚線5を第2集合ダイス222に供給する。   Subsequently, the plurality of first wires 100 twisted together are compression-molded into a flat-shaped stranded wire 5 having a flat cross-sectional shape in the first rolling roll 230. The 1st rolling roll 230 has four rolls as an example. And four rolls of the 1st rolling roll 230 are mutually orthogonally cross | intersected so that it may have a rectangular hole in the center part. The first rolling roll 230 rolls the plurality of first wire rods 100 that have passed through the first collective die 220 into a rectangular cross section in the hole. Then, the first rolling roll 230 supplies the formed rectangular formed stranded wire 5 to the second assembly die 222.

次に、撚線機20のケージに装着されている複数の第2ボビン202のそれぞれに巻きついている第2線材110のそれぞれが、第2マンドレル212の方向に引き出されて誘導される。そして、第2マンドレル212の合流点としての先端部分において、複数の第2線材110が平角成形撚線5の外周で合流して予備撚線が形成される。続いて、第2マンドレル212の先端部分から所定の距離を有する集合点としての第2集合ダイス222において、第2マンドレルにおいて形成された予備撚線と平角成形撚線5とから1本の撚線が形成される。   Next, each of the second wire rods 110 wound around each of the plurality of second bobbins 202 attached to the cage of the twisting machine 20 is drawn in the direction of the second mandrel 212 and guided. And in the front-end | tip part as a confluence | merging point of the 2nd mandrel 212, the some 2nd wire 110 joins on the outer periphery of the flat forming wire 5, and a preliminary | backup twisted wire is formed. Subsequently, in the second assembly die 222 as an assembly point having a predetermined distance from the tip portion of the second mandrel 212, a single twisted wire from the pre-twisted wire formed in the second mandrel and the flat formed twisted wire 5 Is formed.

この場合に、間隔210aと同様に、第2マンドレル212と第2集合ダイス222との間に所定の距離としての所定の間隔212aを設ける。すなわち、複数の第2線材110が平角成形撚線5と合流する位置としての第2マンドレル212の先端部分から、複数の第2線材110が平角成形撚線5と共に1本に集合する位置としての第2集合ダイス222の入り口部分までに、所定の間隔212aを設ける。   In this case, similarly to the interval 210 a, a predetermined interval 212 a as a predetermined distance is provided between the second mandrel 212 and the second collecting die 222. That is, from the tip portion of the second mandrel 212 as a position where the plurality of second wire rods 110 merge with the flat wire forming stranded wire 5, as a position where the plurality of second wire rods 110 gather together with the flat wire forming twisted wire 5. A predetermined interval 212 a is provided up to the entrance of the second collective die 222.

所定の間隔212aは、間隔210aと同様に、第2マンドレル212から第2集合ダイス222に誘導される複数の第2線材110のそれぞれが揺れ動いて交差等しない範囲で決定される。一例として、第2マンドレル212と第2集合ダイス222との間の間隔212aは、約10cmである。そして、扁平形状に撚り合された複数の第2線材110は、第2集合ダイス222から所定の距離を有する成形点としての第2圧延ロール232へと供給される。   Similarly to the interval 210a, the predetermined interval 212a is determined within a range in which each of the plurality of second wire rods 110 guided from the second mandrel 212 to the second assembly die 222 does not swing and intersect. As an example, the distance 212a between the second mandrel 212 and the second collecting die 222 is about 10 cm. Then, the plurality of second wires 110 twisted in a flat shape are supplied from the second assembly die 222 to the second rolling roll 232 as a forming point having a predetermined distance.

続いて、第2線材110が撚り合された平角成形撚線5を、第2圧延ロール232において断面平角状を有する平角成形撚線10に圧縮成形する。なお、第2圧延ロール232も第1圧延ロール230と同様の構成を有する。最後に、平角成形撚線10が巻取ドラム240に巻き取られる。これにより、本実施形態に係る平角成形撚線10が形成される。   Subsequently, the flat formed stranded wire 5 in which the second wire 110 is twisted together is compression-molded into a flat formed stranded wire 10 having a rectangular cross section in the second rolling roll 232. The second rolling roll 232 has the same configuration as the first rolling roll 230. Finally, the flat rectangular stranded wire 10 is wound around the winding drum 240. As a result, the flat formed stranded wire 10 according to the present embodiment is formed.

ここで、本実施形態においては第1マンドレル210と第1集合ダイス220との間、及び第2マンドレル212と第2集合ダイス222との間のそれぞれに、通常は設けない間隔210a及び間隔212aを設ける。これにより、本発明者は、間隔210a及び間隔212aを設けない場合に比べて約3倍の速さで平角成形撚線10を製造することができることを見出した。   Here, in the present embodiment, an interval 210a and an interval 212a that are not normally provided are provided between the first mandrel 210 and the first collecting die 220 and between the second mandrel 212 and the second collecting die 222, respectively. Provide. Accordingly, the present inventor has found that the rectangular formed stranded wire 10 can be manufactured at a speed about three times faster than when the interval 210a and the interval 212a are not provided.

そして、間隔210a及び間隔212aを設けない場合に比べて約3倍の製造速度を維持したまま、複数の第1線材100及び複数の第2線材110のそれぞれが撚り合されたときに、複数の第1線材100及び複数の第2線材110のクロスオーバー及び隙間を抑制して本実施形態に係る平角成形撚線10を形成するには、複数の第1線材100の合計本数よりも複数の第2線材110の合計本数を4本多くすることを要するという知見についても、発明者らが鋭意検討の結果、得たものである。なお、クロスオーバーとは、隣接する線材同士の間隔が狭まり、互いに重なる状態をいう。   And when each of a plurality of 1st wire rods 100 and a plurality of 2nd wire rods 110 are twisted together, maintaining a manufacturing speed about 3 times compared with the case where interval 210a and interval 212a are not provided, In order to suppress the crossover and the gap between the first wire rod 100 and the plurality of second wire rods 110 and form the flat formed wire 10 according to the present embodiment, a plurality of the first wire rods 100 are more than the total number of the first wire rods 100. The inventors have also obtained the knowledge that it is necessary to increase the total number of two wires 110 by four as a result of intensive studies. In addition, crossover means the state where the space | interval of adjacent wire materials narrows and it mutually overlaps.

図3は、本発明の第1の実施の形態に係る第2線材の部分断面図を示す。   FIG. 3 shows a partial cross-sectional view of the second wire rod according to the first embodiment of the present invention.

複数の第2線材110はそれぞれ、平角成形撚線5として形成された内層としての複数の第1線材100の外周に撚り合わされて形成される。そして、第2線材110の第1線材100と接していない外周は、第2圧延ロール232によって加工される。図3に示すように、第2線材110の外周の一部である外周110aは、第2圧延ロール232によって圧縮成形された面であり、曲率半径が大きく直線に近似する形状を有する。加工前の第2線材110は、断面形状が円形であったので、外周110aは、第2圧延ロール232による加工率が大きな部分に相当する。   Each of the plurality of second wire members 110 is formed by being twisted around the outer periphery of the plurality of first wire members 100 as inner layers formed as the flat-shaped stranded wires 5. The outer periphery of the second wire 110 that is not in contact with the first wire 100 is processed by the second rolling roll 232. As shown in FIG. 3, an outer periphery 110 a that is a part of the outer periphery of the second wire 110 is a surface compression-molded by the second rolling roll 232 and has a shape that has a large curvature radius and approximates a straight line. Since the second wire rod 110 before processing has a circular cross-sectional shape, the outer periphery 110a corresponds to a portion where the processing rate by the second rolling roll 232 is large.

一方、第2線材110の第1線材100側の外周の一部である外周110b及び外周110c等は、第2圧延ロール232と直接には接せず、第1線材100の外周と接して、第2圧延ロール232からの圧力により第1線材100の外周に押し付けられて加工される部分である。したがって、第2線材110の外周110b及び外周110cの曲率半径はそれぞれ小さく、円の一部に近似する形状を有する。加工前の第2線材110は、断面形状が円形であったので、外周110b及び外周110cは、第2圧延ロール232による加工率が小さな部分に相当する。なお、上記曲率半径は、外周110a、外周110b、及び外周110cそれぞれの加工面の両端を基準に求めたものである。   On the other hand, the outer periphery 110b and the outer periphery 110c, which are part of the outer periphery of the second wire 110 on the first wire 100 side, do not directly contact the second rolling roll 232, but contact the outer periphery of the first wire 100, This is a portion that is pressed against the outer periphery of the first wire rod 100 by the pressure from the second rolling roll 232 and processed. Accordingly, the radii of curvature of the outer periphery 110b and the outer periphery 110c of the second wire 110 are small and have shapes that approximate a part of a circle. Since the second wire 110 before processing has a circular cross-sectional shape, the outer periphery 110b and the outer periphery 110c correspond to portions where the processing rate by the second rolling roll 232 is small. In addition, the said curvature radius is calculated | required on the basis of the both ends of each process surface of the outer periphery 110a, the outer periphery 110b, and the outer periphery 110c.

すなわち、複数の第2線材110の外周のうち、外部に露出している外周110aの加工率は、外部に露出していない外周110b又は外周110cの加工率よりも大きい。このように、複数の第2線材110の外部に露出する外周の加工率を、外部に露出していない外周の加工率よりも大きくすることにより、複数の第2線材110の各線材間のクロスオーバー及び各線材間の隙間が低減される。なお、第1線材100についても第2線材110の場合と同様であるので、詳細な説明は省略する。また、本発明の第1の実施の形態に係る加工率とは、加工後の曲率半径と加工前の線材の半径との差を、加工前の線材の半径で割った百分率(%)をさす。   That is, the processing rate of the outer periphery 110a exposed to the outside among the outer periphery of the plurality of second wire rods 110 is larger than the processing rate of the outer periphery 110b or the outer periphery 110c not exposed to the outside. As described above, by making the processing rate of the outer periphery exposed to the outside of the plurality of second wires 110 larger than the processing rate of the outer periphery not exposed to the outside, the cross between the wires of the plurality of second wires 110 is made. Over and gaps between the wires are reduced. In addition, since it is the same as that of the case of the 2nd wire 110 also about the 1st wire 100, detailed description is abbreviate | omitted. Further, the processing rate according to the first embodiment of the present invention refers to a percentage (%) obtained by dividing the difference between the radius of curvature after processing and the radius of the wire before processing by the radius of the wire before processing. .

(第1の実施の形態の効果)
本発明の第1の実施の形態においては、第1マンドレル210と第1集合ダイス220との間、及び第2マンドレル212と第2集合ダイス222との間のそれぞれに所定の間隔を設けたので、当該間隔を設けない場合に比べて約3倍の速度で平角成形撚線10を製造することができる。
(Effects of the first embodiment)
In the first embodiment of the present invention, a predetermined interval is provided between the first mandrel 210 and the first collecting die 220 and between the second mandrel 212 and the second collecting die 222. The flat-shaped stranded wire 10 can be manufactured at a speed about three times that in the case where the interval is not provided.

また、本発明の第1の実施の形態においては、内層としての複数の第1線材100の本数と外層としての複数の第2線材110の本数との差を調整して、クロスオーバーの発生、並びに複数の第1線材100間及び複数の第2線材110間の隙間の発生が抑制された平角成形撚線10を形成することができる。これにより、複数の第1線材100及び複数の第2線材110のそれぞれを新たな材料で覆うことを要さないので、製造工程を増加せずに高速度の製造速度を維持したまま平角成形撚線10を形成することができる。   Further, in the first embodiment of the present invention, by adjusting the difference between the number of the first wire rods 100 as the inner layer and the number of the second wire rods 110 as the outer layer, occurrence of crossover, In addition, it is possible to form the flat rectangular stranded wire 10 in which the generation of gaps between the plurality of first wire rods 100 and between the plurality of second wire rods 110 is suppressed. Accordingly, since it is not necessary to cover each of the plurality of first wire rods 100 and the plurality of second wire rods 110 with a new material, the rectangular forming twist is maintained while maintaining the high production rate without increasing the production process. Line 10 can be formed.

また、本実施形態においては、内層としての複数の第1線材100の本数と外層としての複数の第2線材110の本数との差を調整して、第1マンドレル210と第1集合ダイス220との間、及び第2マンドレル212と第2集合ダイス222との間のそれぞれに所定の間隔を設けることにより、複数の線材のクロスオーバー及び隙間の発生を防止した平角成形撚線10を形成できる。これにより、複数の第1線材100及び複数の第2線材110の外部表面に滑り性のよい絶縁塗料を有したまま、平角成形撚線10を高速に製造できる。   In the present embodiment, the difference between the number of the first wire rods 100 as the inner layer and the number of the second wire rods 110 as the outer layer is adjusted, and the first mandrel 210 and the first assembly die 220 are adjusted. By providing a predetermined interval between the second mandrel 212 and the second assembly die 222, it is possible to form the flat rectangular twisted wire 10 that prevents the crossover of a plurality of wires and the generation of gaps. Accordingly, the flat-shaped stranded wire 10 can be manufactured at a high speed while the insulating paint having good slipperiness is provided on the outer surfaces of the plurality of first wires 100 and the plurality of second wires 110.

(実施例)
表1は、本発明の実施例に係る平角成形撚線と比較例に係る平角成形撚線とのそれぞれのクロスオーバー発生回数及び隙間の値を示す。
(Example)
Table 1 shows the number of occurrences of crossover and the value of the gap between the flat-formed stranded wire according to the example of the present invention and the flat-formed stranded wire according to the comparative example.

Figure 0004783348
Figure 0004783348

実施例においては、アルミニウムの丸線からなる内層としての第1線材100及び外層としての第2線材110から形成された平角成形撚線10を用いた。また、第1線材100の本数は16本であり、第2線材110の本数は20本である平角成形撚線10を用いた。なお、本実施例に係る平角成形撚線10の断面は、縦寸法が約7mmであり、横寸法が約18mmであった。また、第1線材100及び第2線材の直径はそれぞれ1.8mmであった。   In the examples, the flat-shaped stranded wire 10 formed from the first wire 100 as an inner layer made of a round wire of aluminum and the second wire 110 as an outer layer was used. Moreover, the number of the first wire rods 100 is 16, and the number of the second wire rods 110 is the flat-shaped stranded wire 10 that is 20. In addition, as for the cross section of the flat forming twisted wire 10 which concerns on a present Example, the vertical dimension was about 7 mm and the horizontal dimension was about 18 mm. Moreover, the diameter of the 1st wire 100 and the 2nd wire was 1.8 mm, respectively.

また、本実施例及び比較例に係る平角成形撚線は、上述したように、第1マンドレル210と第1集合ダイス220との間の間隔210a、及び第2マンドレル212と第2集合ダイス222との間の間隔212aを約10cmとして製造した。   In addition, as described above, the flat formed stranded wire according to the present example and the comparative example includes the interval 210a between the first mandrel 210 and the first assembly die 220, and the second mandrel 212 and the second assembly die 222. The distance 212a was about 10 cm.

試料No.1の実施例に係る平角成形撚線は、外層の本数は内層の本数(16本)より4本多く、撚り方向は各層同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+0.5度とした。   Sample No. The number of outer layers of the flat-shaped stranded wire according to Example 1 was four more than the number of inner layers (16), and the twist direction was the same direction twist of each layer. The difference between the twist angle of the inner layer and the tilt angle of the outer layer was +0.5 degrees.

試料No.2の実施例に係る平角成形撚線は、外層の本数は内層の本数(16本)より4本多く、撚り方向は各層交互撚りとした。   Sample No. In the flat-shaped stranded wire according to Example 2, the number of outer layers was four more than the number of inner layers (16), and the twist direction was alternately twisted on each layer.

試料No.3の実施例に係る平角成形撚線は、外層の本数は内層の本数(16本)より4本多く、撚り方向は各層とも同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+1.1度とした。   Sample No. In the flat-shaped stranded wire according to Example 3, the number of outer layers was four more than the number of inner layers (16), and the twist direction was the same direction twist for each layer. The difference between the twist angle of the inner layer and the tilt angle of the outer layer was +1.1 degrees.

試料No.4の比較例に係る平角成形撚線は、外層の本数は内層の本数(16本)より4本多く、撚り方向は各層とも同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+3.1度とした。   Sample No. The number of the outer layer of the flat-shaped stranded wire according to the comparative example 4 is four more than the number of the inner layer (16), and the twist direction is the same direction twist for each layer. The difference between the twist angle of the inner layer and the twist angle of the outer layer was +3.1 degrees.

試料No.5の比較例に係る平角成形撚線は、外層の本数は内層の本数(16本)より6本多く、撚り方向は各層とも同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+0.5度とした。   Sample No. The number of the outer layer of the flat-shaped stranded wire according to the comparative example 5 is six more than the number of the inner layer (16), and the twist direction is the same direction twist in each layer. The difference between the twist angle of the inner layer and the tilt angle of the outer layer was +0.5 degrees.

試料No.6の比較例に係る平角成形撚線は、外層の本数は内層の本数(16本)より6本多く、撚り方向は各層とも同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+1.1度とした。   Sample No. The number of the outer layer of the flat rectangular stranded wire according to the comparative example 6 is six more than the number of the inner layers (16), and the twisting direction of each layer is the same direction. The difference between the twist angle of the inner layer and the tilt angle of the outer layer was +1.1 degrees.

試料No.7の比較例に係る平角成形撚線は、外層の本数は内層の本数(16本)より6本多く、撚り方向は各層とも同方向撚りとした。また、内層の撚りの傾斜角と外層の撚りの傾斜角との差は+3.1度とした。   Sample No. The number of outer layers in the flat-shaped stranded wire according to Comparative Example 7 was six more than the number of inner layers (16), and the twist direction was the same direction for all layers. The difference between the twist angle of the inner layer and the twist angle of the outer layer was +3.1 degrees.

試料No.8の比較例に係る平角成形撚線は、外層の本数は内層の本数(16本)より6本多く、撚り方向は各層交互撚りとした。   Sample No. The number of the outer layer of the flat rectangular twisted wire according to the comparative example 8 was six more than the number of the inner layers (16), and the twist direction was alternately twisted for each layer.

表1を参照すると、実施例に係る試料No.1及び試料No.2の平角成形撚線は、撚り合わせ時のクロスオーバーの発生はなく、更に、外層の線材間に隙間が生じなかった。更に、間隔210a及び間隔212aを設けたので、平角成形撚線の製造速度は、間隔210a及び間隔212aを設けずに平角成形撚線を製造する場合の製造速度の3倍とすることができた。また、試料No.3の平角成形撚線は、外層の線材間に最大で0.7mmの隙間が生じたものの、クロスオーバーは生じなかった。ここで、試料No.3の平角成形撚線の外層の線材間に生じた隙間は、実用上、問題が生じない程度の隙間である。したがって、試料No.3の平角成形撚線は、実質的に実用に耐えることが示された。   Referring to Table 1, sample no. 1 and sample no. No. 2 flat-shaped stranded wire did not cause crossover at the time of twisting, and no gap was generated between the outer layer wires. Furthermore, since the interval 210a and the interval 212a are provided, the production rate of the flat formed stranded wire can be three times the production rate in the case of producing the flat formed stranded wire without providing the interval 210a and the interval 212a. . Sample No. No. 3 flat wire formed stranded wire had a maximum gap of 0.7 mm between the outer layer wires, but no crossover occurred. Here, Sample No. The gap formed between the wires of the outer layer of the flat rectangular stranded wire No. 3 is a gap that does not cause a problem in practice. Therefore, sample no. 3 flat-shaped stranded wires have been shown to substantially withstand practical use.

一方、比較例に係る試料No.4の平角成形撚線は、クロスオーバーは生じなかったものの、外層の線材間に最大で1.8mmの隙間が生じ、不合格品であった。更に、比較例に係る試料No.5の平角成形撚線は、外層の線材間に隙間は生じなかったものの、クロスオーバーが平角成形撚線の製造時に1回発生した。   On the other hand, sample no. The square-shaped stranded wire No. 4 was a rejected product, although a crossover did not occur, but a maximum gap of 1.8 mm was generated between the wires of the outer layer. In addition, sample No. In the flat-shaped stranded wire No. 5, there was no gap between the outer layer wires, but a crossover occurred once during the production of the flat-shaped stranded wire.

比較例に係る試料No.6の平角成形撚線は、外層の線材間に最大で0.9mmの隙間が生じると共に、クロスオーバーも平角成形撚線の製造時に1回発生した。また、比較例に係る試料No.7の平角成形撚線は、外層の線材間に最大で1.9mmの隙間が生じると共に、クロスオーバーも平角成形撚線の製造時に2回発生した。更に、比較例に係る試料No.8の平角成形撚線は、外層の線材間に隙間は生じなかったものの、クロスオーバーが平角成形撚線の製造時に1回発生した。   Sample No. according to the comparative example. In the flat-shaped stranded wire No. 6, a gap of 0.9 mm at the maximum was generated between the wires of the outer layer, and a crossover occurred once during the production of the flat-shaped stranded wire. In addition, Sample No. No. 7 flat-shaped stranded wire had a maximum gap of 1.9 mm between the outer layer wires, and crossover occurred twice during the production of the flat-shaped stranded wire. Furthermore, the sample No. according to the comparative example. In the flat-shaped stranded wire No. 8, there was no gap between the outer-layer wires, but a crossover occurred once during the production of the flat-shaped stranded wire.

以上の結果から、内層である複数の第1線材100の本数よりも、外層である複数の第2線材110の本数を4本多くすると共に、間隔210a及び間隔212aを設けて内層と外層とを同方向撚りで形成する場合、内層の撚りの傾斜角と外層の撚りの傾斜角との差を−3.0度以上+3.0度以下に設定することにより、複数の線材がクロスオーバーすることを防止できると共に、複数の線材間で隙間が生じることを低減できることが示された。   From the above results, the number of the plurality of second wire rods 110 as the outer layer is increased by four from the number of the plurality of first wire rods 100 as the inner layer, and the inner layer and the outer layer are separated by providing the interval 210a and the interval 212a. When forming by twisting in the same direction, the difference between the inclination angle of the inner layer twist and the inclination angle of the outer layer twist is set to -3.0 degrees or more and +3.0 degrees or less, thereby crossing over a plurality of wires. It has been shown that the occurrence of gaps between a plurality of wires can be reduced.

同様にして、内層である複数の第1線材100の本数よりも、外層である複数の第2線材110の本数を4本多くすると共に、内層と外層とを交互撚りで形成した場合も、複数の線材がクロスオーバーすること、及び複数の線材間で隙間が生じることを防止できることが示された。これにより、クロスオーバー及び隙間が生じない平角成形撚線であって、長尺であっても高速での製造が可能な多層の平角成形撚線を本実施例は提供できることが示された。   Similarly, when the number of the plurality of second wires 110 as the outer layer is increased by four than the number of the plurality of first wires 100 as the inner layer, and the inner layer and the outer layer are formed by alternating twisting, It was shown that the crossover of the wire rods and the formation of gaps between the plurality of wire rods can be prevented. Thus, it was shown that the present embodiment can provide a multi-layered rectangular formed stranded wire that does not cause crossover and gaps and that can be manufactured at high speed even if it is long.

また、比較例と実施例との比較により、平角成形撚線を形成する材料、及び平角成形撚線の製造工程を増加させなくても、線材の撚り合わせ時、及び平角成形時のクロスオーバーの発生、並びに隙間を生じることがない平角成形撚線を提供できることが分かる。更に、連続運転での長尺の平角成形撚線の製造、及び高速度での平角成形撚線の製造の提供ができることが分かる。   In addition, by comparing the comparative example and the example, it is possible to reduce the crossover at the time of twisting of the wire and at the time of flat forming without increasing the material for forming the flat formed twisted wire and the manufacturing process of the flat formed wire. It can be seen that a flat-molded stranded wire can be provided that does not generate or cause gaps. Further, it can be seen that it is possible to provide the production of a long flat rectangular stranded wire in continuous operation and the production of a flat rectangular stranded wire at a high speed.

なお、本実施例において外層の線材の本数を内層の線材の本数より4本多くした理由は以下の通りである。まず、外層の線材の本数と内層の線材の本数の差を3本以下にした場合には、外層の線材間の隙間が大きく、隙間が大きい平角成形撚線を用いて構成したコイルの電磁特性が低下するからである。また、外層の線材の本数と内層の線材の本数の差を6本ないし5本以上にした場合には、線材のクロスオーバーが発生しやすいからである。   In the present embodiment, the reason why the number of outer-layer wires is increased by four from the number of inner-layer wires is as follows. First, when the difference between the number of wires in the outer layer and the number of wires in the inner layer is 3 or less, the electromagnetic characteristics of the coil constituted by using a rectangular formed stranded wire having a large gap between the outer layer wires and a large gap This is because of a decrease. Further, when the difference between the number of outer layer wires and the number of inner layer wires is 6 to 5 or more, crossover of wires is likely to occur.

更に、内層の撚りの傾斜角と外層の撚りの傾斜角との差を−3.0度以上+3.0度以下に設定した理由は、この撚りの傾斜角の角度差の範囲を外れると、外層の線材間の隙間を低減できないからである。   Furthermore, the reason for setting the difference between the inclination angle of the inner layer twist and the inclination angle of the outer layer twist to -3.0 degrees or more and +3.0 degrees or less is that if the angle difference of the inclination angle of the twist is out of the range, This is because the gap between the outer-layer wires cannot be reduced.

[第2の実施の形態]
図4は、本発明の第2の実施の形態に係る平角成形撚線の断面の模式図を示す。
[Second Embodiment]
FIG. 4: shows the schematic diagram of the cross section of the flat forming wire based on the 2nd Embodiment of this invention.

第2の実施の形態に係る平角成形撚線11は、第1の実施の形態に係る平角成形撚線10とは、最外部に更に複数の第3線材120から形成される外層を有する点を除き、略同一の構成を有するので、相違点を除き詳細な説明は省略する。   The flat formed stranded wire 11 according to the second embodiment is different from the flat formed stranded wire 10 according to the first embodiment in that it has an outer layer formed of a plurality of third wires 120 on the outermost part. Except for the differences, the detailed description will be omitted except for the differences.

平角成形撚線11は、第1の内層としての複数の第1線材100と、第1の内層に隣接して設けられる第2の内層としての複数の第2線材110と、第2の内層に隣接して設けられる外層としての複数の第3線材120とを備える。本変形例においては、複数の第3線材120の本数は、複数の第2線材110の本数より4本多いと共に、複数の第2線材110の本数は、複数の第1線材100の本数より4本多い。   The flat formed wire 11 includes a plurality of first wire rods 100 as first inner layers, a plurality of second wire rods 110 as second inner layers provided adjacent to the first inner layer, and a second inner layer. And a plurality of third wires 120 as outer layers provided adjacent to each other. In this modification, the number of the plurality of third wires 120 is four more than the number of the plurality of second wires 110, and the number of the plurality of second wires 110 is four than the number of the plurality of first wires 100. Many books.

第2の実施の形態に係る平角成形撚線11についても、第1の実施の形態と同様に、第1の内層と、第2の内層と、外層とのそれぞれを形成する場合に、マンドレルと集合ダイスとの間に所定の間隔を設ける。一例として、当該間隔は約10cmである。これにより、当該間隔を設けない場合の製造速度よりも速い製造速度で、平角成形撚線11を製造することができる。なお、その他の製造工程は、第1の実施の形態と略同一であるので、詳細な説明は省略する。   Similarly to the first embodiment, in the case of forming each of the first inner layer, the second inner layer, and the outer layer with respect to the rectangular formed stranded wire 11 according to the second embodiment, A predetermined interval is provided between the collecting dies. As an example, the interval is about 10 cm. As a result, the flat-shaped stranded wire 11 can be manufactured at a manufacturing speed faster than the manufacturing speed when the interval is not provided. Since other manufacturing steps are substantially the same as those in the first embodiment, detailed description thereof is omitted.

(変形例)
図5は、変形例に係る平角成形撚線の製造工程の概略図を示す。
(Modification)
FIG. 5: shows the schematic of the manufacturing process of the flat square forming twisted wire which concerns on a modification.

変形例に係る平角成形撚線の製造工程は、第1の実施の形態に係る平角成形撚線10の製造工程とは、間隔210a及び間隔212aがない点を除き略同一の構成を備えるので、相違点を除き詳細な説明は省略する。   Since the manufacturing process of the flat formed stranded wire according to the modification has substantially the same configuration as the manufacturing process of the flat formed stranded wire 10 according to the first embodiment except that there are no intervals 210a and 212a. A detailed description is omitted except for the differences.

変形例に係る平角成形撚線の製造工程において用いる撚線機20aは、第1マンドレル210と第1集合ダイス220との間に間隔210aを備えない。同様にして、第2マンドレル212と第2集合ダイス222との間に間隔212aを備えない。   The stranded wire machine 20a used in the manufacturing process of the flat-formed stranded wire according to the modified example does not include the interval 210a between the first mandrel 210 and the first assembly die 220. Similarly, the space 212 a is not provided between the second mandrel 212 and the second assembly die 222.

係る構成を有する撚線機20aによれば、本発明の実施形態に係る平角成形撚線10又は平角成形撚線11における内層の線材の本数と外層の線材の本数との差が4本と異なる本数、例えば、5本又は6本等であっても、クロスオーバーが発生しないと共に、隙間の小さな平角成形撚線を製造することができる。これにより、高速な製造速度を要さない場合においては、内層の線材の本数と外層の線材の本数とを適宜変更して、平角成形撚線を製造することができる。   According to the twisting machine 20a having such a configuration, the difference between the number of inner-layer wires and the number of outer-layer wires in the flat-shaped stranded wire 10 or the flat-shaped stranded wire 11 according to the embodiment of the present invention is different from four. Even if the number is, for example, 5 or 6, etc., a cross-over does not occur, and a flat-shaped stranded wire with a small gap can be manufactured. Thereby, when a high production rate is not required, the number of inner-layer wires and the number of outer-layer wires can be appropriately changed to produce a rectangular formed stranded wire.

以上、本発明の実施の形態及び変形例を説明したが、上記に記載した実施の形態及び変形例は特許請求の範囲に係る発明を限定するものではない。また、実施の形態及び変形例の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない点に留意すべきである。   As mentioned above, although embodiment and the modification of this invention were demonstrated, embodiment and modification which were described above do not limit the invention which concerns on a claim. In addition, it should be noted that not all combinations of features described in the embodiments and the modifications are necessarily essential to the means for solving the problems of the invention.

第1の実施の形態に係る平角成形撚線の断面の模式図である。It is a schematic diagram of the cross section of the flat wire forming twisted wire which concerns on 1st Embodiment. 第1の実施の形態に係る平角成形撚線の製造工程の概略図である。It is the schematic of the manufacturing process of the flat angle | molded twisted wire which concerns on 1st Embodiment. 第1の実施の形態に係る第2線材の部分断面図である。It is a fragmentary sectional view of the 2nd wire concerning a 1st embodiment. 第2の実施の形態に係る平角成形撚線の断面の模式図である。It is a schematic diagram of the cross section of the flat wire forming twisted wire which concerns on 2nd Embodiment. 変形例に係る平角成形撚線の製造工程の概略図である。It is the schematic of the manufacturing process of the flat forming wire based on a modification.

符号の説明Explanation of symbols

5、5a、10、10a、11 平角成形撚線
20、20a 撚線機
100 第1線材
100a、100b、110a、110b 外周
110 第2線材
120 第3線材
200 第1ボビン
202 第2ボビン
210 第1マンドレル
210a、212a 間隔
212 第2マンドレル
220 第1集合ダイス
222 第2集合ダイス
230 第1圧延ロール
232 第2圧延ロール
240 巻取ドラム
5, 5a, 10, 10a, 11 Flat-shaped formed twisted wire 20, 20a Twisted wire machine 100 First wire 100a, 100b, 110a, 110b Outer periphery 110 Second wire 120 Third wire 200 First bobbin 202 Second bobbin 210 First Mandrel 210a, 212a Interval 212 Second mandrel 220 First collective die 222 Second collective die 230 First rolling roll 232 Second rolling roll 240 Winding drum

Claims (7)

定の本数の第1線材を撚り合わされて平角状に成形された第1の層と、
前記第1線材と同径で本数が前記第1線材より4本多い第2線材が前記第1の層の外側に撚り合わされて平角状に成形された第2の層とを含んで構成され、
前記第2の層を構成する第2線材は、加工側外周の加工率が当該加工側外周の反対側の外周の加工率に比べて大きくなるように、外部に露出した外周部が圧縮加工されて前記第1の層に押し付けられ変形している平角成形撚線。
A first layer formed into the rectangular shape is Awa twisted first wire rod in the number of Jo Tokoro,
A second wire having the same diameter as the first wire and four more wires than the first wire is twisted on the outside of the first layer and formed into a rectangular shape ;
In the second wire constituting the second layer, the outer peripheral portion exposed to the outside is compressed so that the processing rate of the processing side outer periphery is larger than the processing rate of the outer periphery on the opposite side of the processing side outer periphery. A flat-shaped stranded wire that is pressed against the first layer and deformed .
前記第1の層の線材及び前記第2の層の線材が同方向撚りで撚り合わされ、前記第1の
層の線材の撚りの傾斜角と前記第2の層の線材の撚りの傾斜角との差が−3.0度以上+
3.0度以下である請求項1に記載の平角成形撚線。
The wire material of the first layer and the wire material of the second layer are twisted in the same direction, and the inclination angle of the twist of the wire material of the first layer and the inclination angle of the twist of the wire material of the second layer Difference is more than -3.0 degrees +
The flat-molded stranded wire according to claim 1, which is 3.0 degrees or less.
前記第1の層の線材及び前記第2の層の線材が交互撚りで撚り合わされる請求項1に記載の平角成形撚線。 2. The flat-molded stranded wire according to claim 1, wherein the wire material of the first layer and the wire material of the second layer are twisted by alternating twist. 前記第1の層と、前記第1の層を包囲する前記第2の層との2層構造で形成される請求項1からのいずれか1項に記載の平角成形撚線。 The flat-molded stranded wire according to any one of claims 1 to 3 , which is formed of a two-layer structure including the first layer and the second layer surrounding the first layer. 前記第1の層及び前記第2の層を構成する線材の外周が、絶縁塗料でそれぞれ被覆されている請求項1からのいずれか1項に記載の平角成形撚線。 The first is the outer periphery of the wire material constituting the So及 beauty the second layer, flat-molded stranded wire according to any one of Tei Ru claim 1 coated respectively with insulation coating 4. 繰り出された所定の本数の第1線材をその合流点において合流させて予備撚線を形成する工程と、
前記合流点から所定の距離を有する集合点において前記予備撚線の線材を集合させて前記予備撚線を平角状に圧縮成形して第1の層を形成する工程と、
外径が前記第1線材と同じで数が前記第1線材より4本多い第2線材を繰り出して当該第2線材を前記第1の層の外周で当該第1の層と合流させて予備撚線を形成する工程と
前記第1の層と前記第2線材との合流点から所定の距離を有する集合点において、前記第1の層と前記第2線材による予備撚線とを集合させて前記第2線材を前記第1の層の上に圧縮し前記第2線材を平角状に成形して第2の層を形成する工程とを備える平角成形撚線の製造方法。
A step of forming a pre-twisted wire by joining a predetermined number of fed first wires at the joining point;
Forming the first layer by compressing the preliminary stranded wire into a rectangular shape by assembling the preliminary stranded wire at an assembly point having a predetermined distance from the joining point;
A pre-twist is obtained by feeding out a second wire having the same outer diameter as the first wire and having four more wires than the first wire and joining the second wire with the first layer on the outer periphery of the first layer. Forming a line ;
The first wire and the pre-twisted wire formed by the second wire are assembled at a gathering point having a predetermined distance from a joining point between the first layer and the second wire, and the second wire is made into the first wire. And a step of forming the second layer by forming the second wire rod into a flat shape by compressing it onto the first layer .
前記第1の層を形成する工程及び前記第2の層を形成する工程は、4つのロールが中央部に矩形状の孔を有するように配置された圧延ロールで前記予備撚線を平角状に圧縮成形する請求項6に記載の平角成形撚線の製造方法。In the step of forming the first layer and the step of forming the second layer, the pre-twisted wire is formed into a rectangular shape with rolling rolls arranged so that four rolls have a rectangular hole in the center. The method for producing a flat-molded stranded wire according to claim 6, which is compression-molded.
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