JP5100727B2

JP5100727B2 - Traverse equipment

Info

Publication number: JP5100727B2
Application number: JP2009211745A
Authority: JP
Inventors: 修一笠舛; 義文青木; 雅幸平原; 喬佐藤
Original assignee: 直江津電子工業株式会社
Priority date: 2009-09-14
Filing date: 2009-09-14
Publication date: 2012-12-19
Anticipated expiration: 2029-09-14
Also published as: JP2011057426A

Description

本発明は、例えば固定砥粒方式のワイヤソーや表面に凹凸を有するものなど、摩擦車（ローラやプーリなど）との摩擦抵抗が高い線材を、少なくとも巻芯（ボビンやリールなど）に対してトラバース動作させながら巻き取るトラバース装置に関する。
詳しくは、巻芯の軸方向へ往復動する移動摩擦車と、該移動摩擦車を挟んで巻芯の軸方向へ移動不能に配置される固定摩擦車とが、略平行な支軸に対してそれぞれ回転自在に支持されるトラバースに関する。 The present invention traverses a wire rod having a high frictional resistance with a friction wheel (roller, pulley, etc.) such as a fixed abrasive type wire saw or a surface having irregularities on at least a winding core (bobbin, reel, etc.). The present invention relates to a traverse device that winds while operating.
Specifically, a moving friction wheel that reciprocates in the axial direction of the winding core and a fixed friction wheel that is disposed so as to be immovable in the axial direction of the winding core with the moving friction wheel interposed therebetween are substantially parallel to the support shaft. The present invention relates to a traverse that is rotatably supported.

従来、この種のトラバース装置として、３本ローラの相互間にわたって所定の間隔でワイヤを張り上げ、ワイヤに被切断加工物を押し当てながらワイヤを摺動させるとともに、該ワイヤの移動方向と交差する左右方向へ移動不能に配置された固定ローラ側からワイヤを巻取装置のガイドローラへ向け供給し、ワイヤの張力を一定に保つため、例えば、定トルクに制御されるモータ等で、リール回転させながら、一方、ワイヤガイドローラ駆動モータを駆動させワイヤを左右に誘導する該ガイドローラで、両端リミットスイッチ位置の間を往復させながらワイヤをリールにトラバースさせながら巻き付けるものがある（例えば、特許文献１参照）。 Conventionally, as a traverse device of this type, a wire is stretched at a predetermined interval between three rollers, and the wire is slid while pressing a workpiece to be cut against the wire, and the right and left intersecting with the moving direction of the wire In order to supply the wire from the fixed roller side, which cannot be moved in the direction, to the guide roller of the winding device and keep the wire tension constant, for example, while rotating the reel with a motor controlled to a constant torque, etc. On the other hand, there is a guide roller that drives the wire guide roller drive motor to guide the wire left and right and winds the wire while traversing the reel while reciprocating between the limit switch positions at both ends (see, for example, Patent Document 1). ).

実開平４−１９７５７号公報（第４−５図）Japanese Utility Model Publication No. 4-19757 (Fig. 4-5)

しかし乍ら、このような従来のトラバース装置では、例えば固定砥粒付きワイヤなどのように摩擦抵抗の高いワイヤをリールにトラバースさせながら巻き付けるために、トラバース方向へ移動不能な固定ローラとリールの間で、ガイドローラをトラバース方向へ左右移動させると、該ワイヤの表面と固定ローラ及びガイドローラの凹溝との間の摩擦抵抗により、ワイヤが固定ローラ及びガイドローラの凹溝に沿ってトラバース方向へ位置ズレを生じ、この位置ズレに伴いワイヤが捻れて断線するおそれがあり、さらにワイヤの振れ幅が大きくなった時には、凹溝の端部から脱落するおそれがあるという問題があった。 However, in such a conventional traverse device, for example, a wire having high frictional resistance such as a wire with fixed abrasive is wound while traversing the reel, so that the fixed roller and the reel that cannot move in the traverse direction are wound. When the guide roller is moved left and right in the traverse direction, the wire is moved in the traverse direction along the concave grooves of the fixed roller and the guide roller by the frictional resistance between the surface of the wire and the concave grooves of the fixed roller and the guide roller. There is a problem that a positional shift occurs, and the wire may be twisted and disconnected due to the positional shift. Further, when the deflection width of the wire is increased, there is a possibility that it is dropped from the end of the groove.

本発明は、このような問題に対処することを課題とするものであり、簡単な構造で摩擦抵抗が大きい固定砥粒付きワイヤの断線及び摩擦車からの脱落を防止すること、更なる溝加工のみで線材の断線及び摩擦車からの脱落を防止すること、などを目的とするものである。 An object of the present invention is to cope with such a problem, and it is possible to prevent disconnection of a wire with fixed abrasive grains having a simple structure and a large frictional resistance and dropping off from a friction wheel, and further groove processing. preventing falling off from the disconnection and friction wheel of the wire only,, etc. it is an object.

このような目的を達成するために本発明は、巻芯と、前記巻芯の軸方向へ往復動する移動摩擦車と、前記巻芯との間に前記移動摩擦車を挟んで前記巻芯の軸方向へ移動不能に配置される固定摩擦車とを備え、前記巻芯、前記移動摩擦車及び前記固定摩擦車を、略平行に配置される支軸に対してそれぞれ回転自在に支持し、前記固定摩擦車側から供給される線材を、前記移動摩擦車によりトラバース動作させながら前記巻芯に巻き取るトラバース装置であって、前記移動摩擦車の外周面に形成される凹溝及び前記固定摩擦車の外周面に形成される凹溝の両方又はいずれか一方に、前記巻芯の軸方向と平行なトラバース方向に向かって落差がある段差部を形成し、前記線材が、前記移動摩擦車の前記凹溝及び前記固定摩擦車の前記凹溝との摩擦抵抗が大きい固定砥粒付きワイヤであることを特徴とする。 The present invention in order to achieve the above object, a winding core, and moving the friction wheel to reciprocate in the axial direction of the winding core, the core across the moving friction wheel between the core a fixed friction wheel which is immovable positioned in the axial direction, the winding core, the moving friction wheel and the fixed friction wheel, rotatably supported respectively support shaft is arranged substantially parallel to, the the wire that will be supplied from the fixed friction wheel side, a traverse device for winding the winding core while traversing operation by the moving friction wheel, the groove and the fixed friction is formed on the outer peripheral surface of the moving friction wheel A step portion having a drop in the traverse direction parallel to the axial direction of the winding core is formed in both or any one of the concave grooves formed on the outer peripheral surface of the vehicle, and the wire rod is used for the moving friction vehicle. Friction resistance between the concave groove and the concave groove of the fixed friction wheel Characterized in that it is a large fixed abrasive with wire.

前述した特徴に加えて、前記凹溝がＶ溝であり、前記Ｖ溝の中央に前記Ｖ溝の溝角度よりも鋭角なＶ溝部を形成して、前記Ｖ溝と前記Ｖ溝部との間に前記段差部を配置したことを特徴とする。 In addition to the features discussed above, the concave groove is V-shaped groove, I said to form a sharp V-shaped groove than the groove angle of the V grooves in the center of the V groove, between the V-groove and the V-shaped groove The step portion is arranged.

前述した特徴を有する本発明は、巻芯と、前記巻芯の軸方向へ往復動する移動摩擦車と、前記巻芯との間に前記移動摩擦車を挟んで前記巻芯の軸方向へ移動不能に配置される固定摩擦車とを備え、前記巻芯、前記移動摩擦車及び前記固定摩擦車を、略平行に配置される支軸に対してそれぞれ回転自在に支持し、前記固定摩擦車側から供給される線材を、前記移動摩擦車によりトラバース動作させながら前記巻芯に巻き取るトラバース装置であって、前記移動摩擦車の外周面に形成される凹溝及び前記固定摩擦車の外周面に形成される凹溝の両方又はいずれか一方に、前記巻芯の軸方向と平行なトラバース方向に向かって落差がある段差部を形成することにより、移動摩擦車のトラバース移動に伴い、摩擦抵抗の大きい線材が、移動摩擦車の凹溝又は固定摩擦車の凹溝に沿ってトラバース方向へ位置ズレしても、段差部を通過する時に線材が段差部の落差で凹溝の表面から瞬間的に離れ、この時点で線材に捻れが生じている場合には、線材が捻れ方向と逆方向へ空回りして捻れが戻り、その後、線材が凹溝の表面に着地した時に生ずる摩擦抵抗で、線材のトラバース方向への位置ズレにブレーキがかかり、位置ズレの振れ幅が本来の振り幅よりも小さくなるので、簡単な構造で摩擦抵抗が大きい線材の断線及び摩擦車からの脱落を防止することができる。
その結果、線材の断線や脱落を防止するために、少なくとも移動摩擦車の凹溝や固定摩擦車の凹溝を摩擦抵抗の小さい材料で形成する必要がないため、改造コストを低減できる。
さらに、移動摩擦車や固定摩擦車の少なくとも凹溝を、従来から使用されている材料で形成しても線材の断線や脱落を防止できるため、改造コストを低減できる。
また、線材の断線や脱落で装置全体の駆動を停止させる必要が無くなるため、稼働率を大幅に向上できる。
特に、前記線材が、前記移動摩擦車の前記凹溝及び前記固定摩擦車の前記凹溝との摩擦抵抗が大きい固定砥粒付きワイヤである場合には、固定砥粒付きワイヤと、移動摩擦車の凹溝及び固定摩擦車の凹溝との間に生ずる摩擦抵抗で、移動摩擦車のトラバース移動に伴い固定砥粒付きワイヤが、移動摩擦車の凹溝又は固定摩擦車の凹溝に沿ってトラバース方向へ位置ズレしても、段差部を通過する時に固定砥粒付きワイヤが段差部の落差で凹溝の表面から瞬間的に離れ、この時点で固定砥粒付きワイヤに捻れが生じている場合には、固定砥粒付きワイヤが捻れ方向と逆方向へ空回りして捻れが戻り、その後、固定砥粒付きワイヤが凹溝の表面に着地した時に生ずる摩擦抵抗で、固定砥粒付きワイヤのトラバース方向への位置ズレにブレーキがかかり、位置ズレの振れ幅が本来の振り幅よりも小さくなるので、簡単な構造で固定砥粒付きワイヤの断線及び摩擦車からの脱落を防止することができる。
その結果、固定砥粒付きワイヤの寿命を延ばすことができて経済的である。 The present invention having the features described above moves, and the winding core, and moving the friction wheel to reciprocate in the axial direction of the winding core, the axial direction of the winding core across the moving friction wheel between the core comprises a fixed friction wheel and which is incapable disposed, said core, said movement friction wheel and the fixed friction wheel, rotatably supported respectively support shaft is arranged substantially parallel to, the fixed friction wheel side the outer peripheral surface of the wire that will be fed to a traverse device for winding the winding core while traversing operation by the moving friction wheel, the groove and the fixed friction wheel is formed on the outer peripheral surface of the moving friction wheel from By forming a step portion having a drop in the traverse direction parallel to the axial direction of the winding core in both or any one of the concave grooves formed in the frictional friction, The large wire rod Or, even if it is displaced in the traverse direction along the concave groove of the fixed friction wheel, the wire is momentarily separated from the surface of the concave groove due to the drop of the step when passing through the step, and the wire is twisted at this point. If the wire rod is idle in the direction opposite to the torsional direction, the twisting returns and then the friction is generated when the wire lands on the surface of the concave groove, and the displacement of the wire rod in the traverse direction is braked. Since the displacement width of the positional deviation is smaller than the original swing width, it is possible to prevent the wire rod having high frictional resistance and disconnection from the friction wheel with a simple structure.
As a result, it is not necessary to form at least the concave groove of the moving friction wheel or the concave groove of the fixed friction wheel with a material having a small frictional resistance in order to prevent the wire rod from being disconnected or dropped off, so that the modification cost can be reduced.
Furthermore, even if at least the concave groove of the moving friction wheel or the fixed friction wheel is formed of a conventionally used material, the wire rod can be prevented from being disconnected or dropped, so that the modification cost can be reduced.
Moreover, since it is not necessary to stop the driving of the entire apparatus due to disconnection or dropping of the wire, the operating rate can be greatly improved.
In particular, when the wire is a wire with fixed abrasive having a large frictional resistance with the concave groove of the moving friction wheel and the concave groove of the fixed friction wheel, the wire with fixed abrasive and the moving friction wheel The frictional resistance generated between the concave groove of the fixed friction wheel and the concave groove of the fixed friction wheel causes the wire with fixed abrasive grains to move along the concave groove of the movable friction wheel or the fixed friction wheel along with the traverse movement of the moving friction wheel. Even if the position is shifted in the traverse direction, the wire with fixed abrasive is momentarily separated from the surface of the groove due to the drop of the step when passing through the step, and at this point, the wire with fixed abrasive is twisted. In such a case, the wire with fixed abrasive turns idly in the direction opposite to the twist direction and the twist returns, and then the frictional resistance generated when the wire with fixed abrasive lands on the surface of the concave groove, Is the brake applied to the misalignment in the traverse direction? Ri, the amplitude of the positional deviation becomes smaller than the original stitch width, it can be prevented from falling off from the disconnection and friction wheel fixed abrasive with wires with a simple structure.
As a result, the life of the wire with fixed abrasive can be extended, which is economical.

また、前記凹溝がＶ溝であり、このＶ溝の中央に該Ｖ溝の溝角度よりも鋭角なＶ溝部を形成して、これらＶ溝とＶ溝部との間に前記段差部を配置した場合には、移動摩擦車のトラバース移動に伴い、摩擦抵抗の大きい線材が、Ｖ溝部内からＶ溝へ位置ズレしたり、これと逆にＶ溝からＶ溝部へ位置ズレしても、この位置ズレ途中で段差部を通過する時に、その落差で線材がＶ溝又はＶ溝部の表面から瞬間的に離れ、この時点で線材が既に捻れている場合には、線材が捻れ方向と逆方向へ空回りして捻れが戻り、その後、線材がＶ溝部或いはＶ溝の表面に着地した時に生ずる摩擦抵抗で、線材のトラバース方向への位置ズレにブレーキがかかり、位置ズレの振れ幅が本来の振り幅よりも小さくなるので、更なる溝加工のみで線材の断線及び摩擦車からの脱落を防止することができる。
その結果、移動摩擦車のＶ溝や固定摩擦車のＶ溝にＶ溝部を形成するだけなので、使用中の摩擦車を容易に改良できて経済的である。 Further, the concave groove is a V-groove, a V-groove portion that is sharper than the groove angle of the V-groove is formed at the center of the V-groove, and the step portion is disposed between the V-groove and the V-groove. In this case, even if the wire having a large frictional resistance is displaced from the V groove to the V groove as the moving friction wheel moves, the position of the wire is shifted from the V groove to the V groove. When passing the step part in the middle of displacement, the wire is momentarily separated from the surface of the V-groove or V-groove due to the drop, and if the wire is already twisted at this point, the wire is idle in the direction opposite to the twist direction. Then, the twisting returns, and then the friction is generated when the wire is landed on the V-groove or the surface of the V-groove, the brake is applied to the displacement of the wire in the traverse direction. Therefore, wire breakage and friction can be achieved only by further grooving. It can be prevented from falling out of the.
As a result, since the V-groove portion is only formed in the V-groove of the moving friction wheel or the V-groove of the fixed friction wheel, the friction wheel in use can be easily improved and economical.

本発明の実施形態に係るトラバース装置を示す横断平面図である。It is a cross-sectional top view which shows the traverse apparatus which concerns on embodiment of this invention. 摩擦車の部分拡大平面図である。It is a partial enlarged plan view of a friction wheel. 従来のトラバース装置の一例を示す横断平面図である。It is a cross-sectional top view which shows an example of the conventional traverse apparatus.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
本発明の実施形態に係るトラバース装置Ａは、図１に示すように、巻芯１と、巻芯１の軸方向へ往復動する移動摩擦車２と、巻芯１との間に移動摩擦車２を挟んで巻芯１の軸方向へ移動不能に配置される固定摩擦車３とを備え、これら巻芯１、移動摩擦車２及び固定摩擦車３を、略平行に配置される支軸１ｓ，２ｓ，３ｓに対してそれぞれ回転自在に支持し、固定摩擦車３側から供給される線材Ｂを、移動摩擦車２でトラバース動作させることにより、巻芯１の外周面に沿って整列状に巻取りするものである。
詳しく説明すれば、本発明の実施形態に係るトラバース装置Ａは、例えばワイヤソーなどの線材Ｂを用いる装置に配備され、余剰となった線材Ｂを後述する巻芯１に対し多段状に整列巻取りして回収し、また逆に線材Ｂが必要となった時には巻芯１から引き出すものとして使用される。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, a traverse device A according to an embodiment of the present invention includes a winding core 1, a moving friction wheel 2 that reciprocates in the axial direction of the winding core 1, and a moving friction wheel between the winding core 1. The fixed friction wheel 3 is disposed so as to be immovable in the axial direction of the winding core 1 with the pin 2 interposed therebetween, and the winding shaft 1, the moving friction wheel 2 and the fixed friction wheel 3 are arranged substantially in parallel with a support shaft 1s. , 2 s, 3 s are supported rotatably, and the wire B supplied from the fixed friction wheel 3 side is traversed by the moving friction wheel 2 to be aligned along the outer peripheral surface of the core 1. It is intended to be wound.
More specifically, the traverse apparatus A according to the embodiment of the present invention is provided in an apparatus using a wire rod B such as a wire saw, and the excess wire rod B is aligned and wound in a multistage manner on the core 1 described later. Then, when the wire B is needed, it is used to be pulled out from the core 1.

線材Ｂは、例えばワイヤ、ロープ、糸などで、特にその表面が後述する移動摩擦車２の凹溝２ａや固定摩擦車３の凹溝３ａに対して摩擦抵抗が大きいものを言う。
具体的には、固定砥粒方式のワイヤソーに用いられる、芯線の周囲にダイヤモンドなどが固着された固定砥粒付きワイヤなどである。 The wire B is, for example, a wire, a rope, a thread, and the like whose surface has a large frictional resistance with respect to the groove 2a of the moving friction wheel 2 and the groove 3a of the fixed friction wheel 3, which will be described later.
Specifically, it is a wire with a fixed abrasive, which is used for a wire saw of a fixed abrasive method, in which diamond or the like is fixed around a core wire.

巻芯１は、余剰となった線材Ｂを回収するための所謂ボビンやリールと呼ばれるものであり、その外周面が平滑な円柱状又は円筒状に形成されて軸方向へ所定長さの回収面１ａを有し、例えばフレームなどの装置本体Ａ１に対して支軸１ｓで回転自在に支持され、図示しない駆動モータにより正逆両方向へ設定速度で回転駆動される。 The winding core 1 is a so-called bobbin or reel for collecting surplus wire rod B, and its outer peripheral surface is formed into a smooth columnar or cylindrical shape, and has a predetermined length in the axial direction. 1a, which is rotatably supported by a support shaft 1s with respect to an apparatus main body A1 such as a frame, and is rotationally driven at a set speed in both forward and reverse directions by a drive motor (not shown).

移動摩擦車２は、後述する固定摩擦車３から供給された線材Ｂを巻芯１の回収面１ａへ向け案内するための所謂トラバーサー用プーリやローラと呼ばれるものであり、巻芯１の回収面１ａの軸方向寸法よりも短い円柱状又は円筒状に形成され、その外周面に例えば断面Ｖ字形又はＵ字形の凹溝２ａを有し、巻芯１の回収面１ａと対向するように装置本体Ａ１に対して、巻芯１の支軸１ｓと平行な支軸２ｓで回転自在に支持するとともに、図示しないトラバーサー駆動機構が連設されて、巻芯１の回収面１ａの軸方向へ往復動自在に支持されている。
このトラバーサー駆動機構の作動に伴って移動摩擦車２を巻芯１の回収面１ａの軸方向へ往復動させることにより、線材Ｂの巻取り時には、先ず線材Ｂが巻芯１の回収面１ａに沿って螺旋状に隙間なく整列巻き付けされ、その後、この巻き付け外面に沿って線材Ｂが軸方向逆向きに螺旋状に隙間なく整列巻き付けされ、結果的に多段状の整列巻き付けが行われるようにしている。
なお、図１及び図３に示される例では、理解し易くするために、巻芯１の回収面１ａに対して線材Ｂが一定間隔毎を空けて螺旋状に巻き付けられているが、実際は巻芯１に対して線材Ｂが隙間なく螺旋状に巻き付けられる。
また、移動摩擦車２は、その全体又は少なくとも線材Ｂと接触する凹溝２ａを摩擦抵抗の小さい材料で形成することが好ましい。 The moving friction wheel 2 is a so-called traverser pulley or roller for guiding the wire B supplied from the fixed friction wheel 3 described later toward the recovery surface 1 a of the core 1. The main body of the apparatus is formed in a columnar or cylindrical shape shorter than the axial dimension of 1a, has a concave groove 2a having a V-shaped or U-shaped cross section, for example, on its outer peripheral surface, and faces the recovery surface 1a of the core 1 A1 is rotatably supported by a support shaft 2s parallel to the support shaft 1s of the core 1, and a traverser drive mechanism (not shown) is provided continuously to reciprocate in the axial direction of the recovery surface 1a of the core 1. It is supported freely.
By reciprocating the moving friction wheel 2 in the axial direction of the collecting surface 1a of the winding core 1 in accordance with the operation of the traverser driving mechanism, the wire B is first moved to the collecting surface 1a of the winding core 1 when winding the wire B. The wire B is aligned and wound in a spiral manner along the outer surface of the winding, and then the wire B is spirally wound in the opposite direction in the axial direction without any gaps. As a result, a multi-step aligned winding is performed. Yes.
In the example shown in FIGS. 1 and 3, the wire B is spirally wound around the collection surface 1a of the core 1 at regular intervals for easy understanding. The wire B is wound spirally around the core 1 without a gap.
Moreover, it is preferable that the moving friction wheel 2 is formed of a material having a small frictional resistance, or the concave groove 2a contacting at least the wire B.

固定摩擦車３は、例えばワイヤソーなどの線材Ｂを用いる装置と、本発明の実施形態に係るトラバース装置Ａとを連絡するための所謂ガイド用プーリやローラと呼ばれるものであり、巻芯１の回収面１ａの軸方向寸法よりも短い円柱状又は円筒状に形成され、その外周面に例えば断面Ｖ字形又はＵ字形の凹溝３ａを有し、巻芯１の回収面１ａの軸方向中間位置と対向するように装置本体Ａ１に対して、巻芯１の支軸１ｓ及び移動摩擦車２の支軸２ｓと平行な支軸３ｓにより回転自在で且つ軸方向へ移動不能に支持されている。
また、固定摩擦車３は、その全体又は少なくとも線材Ｂと接触する凹溝３ａを摩擦抵抗の小さい材料で形成することが好ましい。 The fixed friction wheel 3 is a so-called guide pulley or roller for communicating a device using the wire B such as a wire saw and the traverse device A according to the embodiment of the present invention. It is formed in a columnar or cylindrical shape shorter than the axial dimension of the surface 1a, and has a concave groove 3a having, for example, a V-shaped or U-shaped cross section on its outer peripheral surface, and an axially intermediate position of the recovery surface 1a of the core 1 The device main body A1 is supported so as to be opposed by a support shaft 3s parallel to the support shaft 1s of the winding core 1 and the support shaft 2s of the moving friction wheel 2 so as to be rotatable and immovable in the axial direction.
Moreover, it is preferable that the fixed friction wheel 3 is formed of a material having a small frictional resistance, or the concave groove 3a that contacts at least the wire B.

そして、これら移動摩擦車２の外周面に形成される凹溝２ａ及び固定摩擦車３の外周面に形成される凹溝３ａの両方又はいずれか一方には、巻芯１の回収面１ａの軸方向と平行なトラバース方向に向かって落差がある段差部４を形成し、移動摩擦車２がトラバース方向（巻芯１の回収面１ａの軸方向）へ往復動するのに伴って線材Ｂが移動摩擦車２の凹溝２ａ及び固定摩擦車３の凹溝３ａ内でトラバース方向へ位置ズレした際に、線材Ｂと凹溝２ａ，凹溝３ａとの接触抵抗が減少するようにしている。
この段差部４は、移動摩擦車２の凹溝２ａ及び固定摩擦車３の凹溝３ａの両方又はいずれか一方にトラバース方向へ形成される凹凸部分であり、トラバース方向へ位置ズレした線材Ｂが凹凸部分を通過する時に、線材Ｂが持つ位置ズレの慣性力により、該凹凸部分の落差を利用して、線材Ｂが凹溝２ａ，３ａの表面から瞬間的に離れるようにしている。 And the groove | channel 2a formed in the outer peripheral surface of these moving friction wheels 2, and the concave groove 3a formed in the outer peripheral surface of the fixed friction wheel 3, or either one, the axis | shaft of the collection | recovery surface 1a of the core 1 is provided. A step 4 having a drop in the traverse direction parallel to the direction is formed, and the wire B moves as the moving friction wheel 2 reciprocates in the traverse direction (axial direction of the recovery surface 1a of the core 1). When the groove 2a of the friction wheel 2 and the groove 3a of the fixed friction wheel 3 are displaced in the traverse direction, the contact resistance between the wire B, the groove 2a, and the groove 3a is reduced.
The step portion 4 is an uneven portion formed in the traverse direction in one or both of the concave groove 2a of the moving friction wheel 2 and the concave groove 3a of the fixed friction wheel 3, and the wire B displaced in the traverse direction When passing through the concavo-convex portion, the wire B is instantaneously separated from the surfaces of the concave grooves 2a and 3a by utilizing the drop of the concavo-convex portion due to the inertial force of the positional deviation of the wire B.

ところで、前述した段差部４を備えていない従来のトラバース装置Ａ′は、図３の実線及び二点鎖線に示すように、例えば固定砥粒付きワイヤなどのように摩擦抵抗の高い線材Ｂが、固定摩擦車３′の凹溝（Ｖ溝）３ａ′から移動摩擦車２′を介して巻芯１′の回収面１ａ′に整列巻取りされる際や、これと逆に巻芯１′の回収面１ａ′から移動摩擦車２′を介して固定摩擦車３′へ向け引き出される際において、移動摩擦車２′がトラバース方向へ往復動すると、図３の一点鎖線に示すように、線材Ｂの表面と移動摩擦車２′の凹溝（Ｖ溝）２ａ′及び固定摩擦車３′の凹溝（Ｖ溝）３ａ′との間の摩擦抵抗により、線材Ｂが凹溝（Ｖ溝）２ａ′，３ａ′に沿ってトラバース方向へ位置ズレが生じ易くなる。
この位置ズレに伴い線材Ｂは、図３に示す矢印方向に捻れが発生して、この捻れがきつくなると断線するおそれがあり、さらに線材Ｂの振れ幅が大きくなった時には、凹溝（Ｖ溝）２ａ′，３ａ′の端部から脱落するおそれがあった。 By the way, as shown in the solid line and the two-dot chain line in FIG. 3, the conventional traverse device A ′ not provided with the stepped portion 4 described above has a high frictional resistance wire B such as a wire with fixed abrasive grains, When aligned winding is performed from the concave groove (V groove) 3a 'of the fixed friction wheel 3' to the recovery surface 1a 'of the winding core 1' via the moving friction wheel 2 ', the winding core 1' is reversed. When the moving friction wheel 2 'reciprocates in the traverse direction when being drawn from the recovery surface 1a' via the moving friction wheel 2 'to the fixed friction wheel 3', the wire B as shown by the one-dot chain line in FIG. The wire B is formed into a concave groove (V groove) 2a by a frictional resistance between the surface of the movable friction wheel 2 'and a concave groove (V groove) 2a' of the moving friction wheel 2 'and a concave groove (V groove) 3a' of the fixed friction wheel 3 '. Misalignment is likely to occur in the traverse direction along '3a'.
The wire B is twisted in the direction of the arrow shown in FIG. 3 due to this positional shift, and there is a risk of disconnection when the twist becomes tight. Further, when the swing width of the wire B becomes larger, the groove (V groove) ) There was a risk of falling off the ends of 2a 'and 3a'.

これに対し、前述した本発明の実施形態に係るトラバース装置Ａによると、図２の実線及び二点鎖線に示すように、移動摩擦車２又は固定摩擦車３の凹溝２ａ，３ａの幅方向中央位置から段差部４を経て左右いずれかの端部へ位置ズレする際、又はこれと逆に凹溝２ａ，３ａの左右いずれかの端部から段差部４を経て凹溝２ａ，３ａの幅方向中央位置へ位置ズレする際、その位置ズレ途中で線材Ｂが段差部４の凹凸部分を通過する時に、その落差で線材Ｂが慣性により凹溝２ａ，３ａの表面から瞬間的に離れる。
それにより、この時点で線材Ｂに捻れが生じている場合には、線材Ｂが捻れ方向と逆方向へ空回りして捻れが戻り、線材Ｂの捻れがそれ以上にきつくならないので断線が防止される。
また、線材Ｂは、凹溝２ａ，３ａの表面から瞬間的に離れた後に再び凹溝２ａ，３ａの表面に着地するが、この着地時に生ずる摩擦抵抗で、トラバース方向へ位置ズレにブレーキがかかり、位置ズレの振れ幅が本来の振り幅よりも小さくなって、凹溝２ａ，３ａの端部からの脱落が防止される。 On the other hand, according to the traverse apparatus A according to the embodiment of the present invention described above, the width direction of the concave grooves 2a and 3a of the moving friction wheel 2 or the fixed friction wheel 3 as shown by the solid line and the two-dot chain line in FIG. When the position shifts from the central position to the left or right end through the step portion 4, or conversely, the width of the concave grooves 2a, 3a from the left or right end of the concave grooves 2a, 3a through the step portion 4 When the wire B passes through the uneven portion of the stepped portion 4 in the middle of the positional shift when the position is shifted to the center position in the direction, the wire B is instantaneously separated from the surfaces of the grooves 2a and 3a due to inertia due to the drop.
As a result, if the wire B is twisted at this time, the wire B is idled in the direction opposite to the twist direction and the twist returns, and the twist of the wire B is not tightened any further, so that disconnection is prevented. .
In addition, the wire B instantaneously leaves the surface of the grooves 2a and 3a and then landes again on the surface of the grooves 2a and 3a. The frictional resistance generated at the time of landing causes a brake to be displaced in the traverse direction. The displacement width of the positional deviation becomes smaller than the original swing width, so that the recesses 2a and 3a are prevented from falling off from the end portions.

特に、線材Ｂを巻芯１の回収面１ａに整列巻取りする場合は、巻芯１の回収面１ａから線材Ｂを引き出す場合に比べ、線材Ｂに作用する張力が大きくなるため、位置ズレが更に発生し易くなるが、線材Ｂの捻れによる断線や凹溝２ａ，３ａの端部からの線材Ｂの脱落を確実に防止できる。
さらに、移動摩擦車２や固定摩擦車３の少なくとも凹溝２ａ，凹溝３ａを、従来から使用されている例えばウレタンなどのような材料で形成しても線材Ｂの断線や脱落を防止できるため、改造コストを低減できる。
次に、本発明の一実施例を説明する。 In particular, when the wire B is aligned and wound on the collecting surface 1a of the core 1, the tension acting on the wire B becomes larger than when the wire B is pulled out from the collecting surface 1a of the core 1, so that the positional deviation occurs. Furthermore, although it becomes easy to generate | occur | produce, the disconnection by the twist of the wire B and the drop-off | omission of the wire B from the edge part of the ditch | groove 2a, 3a can be prevented reliably.
Further, even if at least the concave groove 2a and the concave groove 3a of the moving friction wheel 2 and the fixed friction wheel 3 are formed of a conventionally used material such as urethane, the wire B can be prevented from being disconnected or dropped. , Remodeling costs can be reduced.
Next, an embodiment of the present invention will be described.

この実施例は、図１及び図２に示す如く、移動摩擦車２の凹溝２ａと固定摩擦車３の凹溝３ａの両方を断面Ｖ字形のＶ溝とし、このＶ溝の幅方向中央に該Ｖ溝の溝角度よりも鋭角なＶ溝部２ｂ，３ｂを形成して、これらＶ溝２ａ，３ａとＶ溝部２ｂ，３ｂとの間に凸状の段差部４がそれぞれ配置される場合を示している。 In this embodiment, as shown in FIGS. 1 and 2, both the concave groove 2a of the moving friction wheel 2 and the concave groove 3a of the fixed friction wheel 3 are formed into V-shaped V-shaped cross-sections, and this V-shaped groove is formed at the center in the width direction. A case is shown in which V-groove portions 2b and 3b that are sharper than the groove angle of the V-groove are formed, and convex step portions 4 are respectively disposed between the V-grooves 2a and 3a and the V-groove portions 2b and 3b. ing.

図２に示される例では、移動摩擦車２の凹溝（Ｖ溝）２ａと固定摩擦車３の凹溝（Ｖ溝）３ａに、Ｖ溝部２ｂ，３ｂを一つだけ形成して、凸状の段差部４が一対それぞれ対向するように配置されている。
また、その他の例として図示せぬが、Ｖ溝部２ｂ，３ｂの幅方向中央にその溝角度よりも鋭角なＶ溝部を複数形成して、凸状の段差部４を二つ以上それぞれ対向状に配置することも可能である。 In the example shown in FIG. 2, only one V groove portion 2b, 3b is formed in the concave groove (V groove) 2a of the moving friction wheel 2 and the concave groove (V groove) 3a of the fixed friction wheel 3 to form a convex shape. The step portions 4 are arranged so as to face each other.
Although not shown as another example, a plurality of V-grooves having a sharper angle than the groove angle are formed in the center in the width direction of the V-grooves 2b and 3b, so that two or more convex stepped parts 4 are opposed to each other. It is also possible to arrange.

さらに、図示される例では、巻芯１がワイヤ回収用のボビンであり、移動摩擦車２がトラバーサー用の移動プーリであり、固定摩擦車３が固定プーリであり、線材Ｂとして固定砥粒付きワイヤを用いている。 Further, in the illustrated example, the core 1 is a bobbin for wire collection, the moving friction wheel 2 is a moving pulley for a traverser, the fixed friction wheel 3 is a fixed pulley, and the wire B has fixed abrasive grains. Wire is used.

このようなトラバース装置Ａによると、図２の実線及び二点鎖線に示すように、移動摩擦車２′のトラバース方向への往復動により、線材Ｂとなる固定砥粒付きワイヤが、移動摩擦車（トラバーサー用の移動プーリ）２や固定摩擦車３（固定プーリ）のＶ溝部２ｂ，３ｂ内から段差部４を経て凹溝（Ｖ溝）２ａ，３ａの左右いずれかの端部へ向け位置ズレする際、又はこれと逆に凹溝（Ｖ溝）２ａ，３ａの左右いずれかの端部から段差部４を経てＶ溝部２ｂ，３ｂへ向け位置ズレする際、その位置ズレ途中で線材Ｂが段差部４の凸状部分を通過する時に、その落差で線材Ｂとなる固定砥粒付きワイヤが慣性により凹溝（Ｖ溝）２ａ，３ａ或いはＶ溝部２ｂ，３ｂの表面から瞬間的に離れる。
それにより、この時点で線材（固定砥粒付きワイヤ）Ｂが既に捻れている場合には、線材Ｂが捻れ方向と逆方向へ空回りして捻れが戻り、線材Ｂの捻れがそれ以上にきつくならないので断線が防止される。
また、凹溝（Ｖ溝）２ａ，３ａ或いはＶ溝部２ｂ，３ｂの表面から瞬間的に離れた線材（固定砥粒付きワイヤ）Ｂは、Ｖ溝部２ｂ，３ｂ若しくは凹溝（Ｖ溝）２ａ，３ａの表面に着地するが、この着地時に生ずる摩擦抵抗で、線材（固定砥粒付きワイヤ）Ｂのトラバース方向への位置ズレにブレーキがかかり、位置ズレの振れ幅が本来の振り幅よりも小さくなって、凹溝（Ｖ溝）２ａ，３ａの端部からの脱落が防止される。 According to such a traverse apparatus A, as shown by the solid line and the two-dot chain line in FIG. 2, the wire with the fixed abrasive that becomes the wire rod B is moved by the reciprocating movement of the moving friction wheel 2 ′ in the traverse direction. (Moving pulley for traverser) 2 or fixed friction wheel 3 (fixed pulley) From inside the V-grooves 2b, 3b to the left or right end of the concave grooves (V-grooves) 2a, 3a through the stepped portion 4 When, or conversely, when the position is shifted from the left or right end of the groove (V groove) 2a, 3a toward the V groove 2b, 3b via the stepped portion 4, the wire B is in the middle of the position shift. When passing through the convex portion of the stepped portion 4, the wire with fixed abrasive that becomes the wire rod B is instantaneously separated from the surface of the concave groove (V groove) 2a, 3a or the V groove portions 2b, 3b due to inertia.
Accordingly, when the wire (wire with fixed abrasive grains) B is already twisted at this time, the wire B is idled in the direction opposite to the twist direction, and the twist is returned, and the twist of the wire B is not tightened any more. Therefore, disconnection is prevented.
Further, the wire rods (wires with fixed abrasive grains) B that are instantaneously separated from the surfaces of the concave grooves (V grooves) 2a, 3a or the V groove portions 2b, 3b are formed into the V groove portions 2b, 3b or the concave grooves (V grooves) 2a, The surface of 3a is landed, but with the frictional resistance generated at the time of landing, the displacement of the wire (wire with fixed abrasive grains) B in the traverse direction is braked, and the displacement width of the displacement is smaller than the original swing width. This prevents the concave grooves (V-grooves) 2a and 3a from falling off the ends.

したがって、移動摩擦車２や固定摩擦車３の凹溝（Ｖ溝）２ａ，３ａにＶ溝部２ｂ，３ｂを形成するだけなので、使用中の移動摩擦車２や固定摩擦車３を容易に改良できる。
て経済的である。 Therefore, since only the V groove portions 2b and 3b are formed in the concave grooves (V grooves) 2a and 3a of the moving friction wheel 2 and the fixed friction wheel 3, the moving friction wheel 2 and the fixed friction wheel 3 in use can be easily improved. .
And economical.

なお、前示実施例では、移動摩擦車２の凹溝２ａと固定摩擦車３の凹溝３ａの両方又はいずれか一方に両方を断面Ｕ字形のＵ溝とし、このＵ溝の幅方向中央にＶ溝部を形成して凸状の段差部４がそれぞれ配置されるようにしたり、移動摩擦車２の凹溝２ａや固定摩擦車３の凹溝３ａを他の形状に形成することで段差部４が配置されるようにしても良い。 In the embodiment shown above, both or one of the concave groove 2a of the moving friction wheel 2 and the concave groove 3a of the fixed friction wheel 3 is a U-shaped U-shaped cross section, and the U-shaped groove is formed at the center in the width direction. The stepped portion 4 is formed by forming the V-shaped groove portion so that the convex stepped portions 4 are respectively disposed, or by forming the recessed groove 2a of the moving friction wheel 2 or the recessed groove 3a of the fixed friction wheel 3 in another shape. May be arranged.

１巻芯１ｓ支軸
２移動摩擦車２ａ凹溝（Ｖ溝）
２ｂＶ溝部２ｓ支軸
３固定摩擦車３ａ凹溝（Ｖ溝）
３ｂＶ溝部３ｓ支軸
４段差部Ｂ線材（固定砥粒付きワイヤ） 1 winding core 1s spindle 2 moving friction wheel 2a concave groove (V groove)
2b V groove portion 2s Support shaft 3 Fixed friction wheel 3a Concave groove (V groove)
3b V groove part 3s Support shaft 4 Step part B Wire rod (wire with fixed abrasive)

Claims

And winding core, and moving the friction wheel to reciprocate in the axial direction of the winding core, a fixed friction wheel to the be across the moving friction wheel disposed immovably in the axial direction of the winding core between the core wherein the core, the moving friction wheel and the fixed friction wheel, rotatably supported respectively support shaft is arranged substantially parallel to, the wire that will be supplied from the fixed friction wheel side, wherein A traverse device for winding around the core while traversing with a moving friction wheel,
A drop in the traverse direction parallel to the axial direction of the winding core in one or both of the concave groove formed on the outer peripheral surface of the moving friction wheel and the concave groove formed on the outer peripheral surface of the fixed friction wheel forming a stepped portion is,
The traverse device , wherein the wire is a wire with fixed abrasive having a large frictional resistance with the concave groove of the moving friction wheel and the concave groove of the fixed friction wheel .

Said groove is V-shaped groove, wherein said forming a sharp V-shaped groove than the groove angle of the V grooves in the center of the V groove and the step portion is arranged between the V-groove and the V-shaped groove The traverse device according to claim 1.