JP4342033B2 - Winding former - Google Patents

Winding former Download PDF

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Publication number
JP4342033B2
JP4342033B2 JP14683599A JP14683599A JP4342033B2 JP 4342033 B2 JP4342033 B2 JP 4342033B2 JP 14683599 A JP14683599 A JP 14683599A JP 14683599 A JP14683599 A JP 14683599A JP 4342033 B2 JP4342033 B2 JP 4342033B2
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Japan
Prior art keywords
sliding
radial direction
segment
follower
former
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JP14683599A
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JP2000334858A (en
Inventor
守彦 内田
孝 仙北谷
憲幸 岩永
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Bridgestone Corp
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Bridgestone Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/48Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B29D2030/487Forming devices for manufacturing the beads

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  • Tyre Moulding (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、ワイヤを巻き取り所要の周長の環状部材を形成する巻取りフォーマに関する。
【0002】
【従来の技術】
この種の巻取りフォーマとしては、例えばタイヤのビードリングを製造するビードフォーマがあり、従来のビードフォーマ01の概略構造を図5に示す。
図5は、同ビードフォーマ01の周方向に分割された複数のセグメント02の1つを図示しており、セグメント02は径方向に指向したLMガイド03に係合して径方向に摺動可能である。
【0003】
一方摺動部材04が軸方向に摺動自在に支持され、同摺動部材04と前記セグメント02とを棒状のリンク部材05が連結している。
セグメント02の外周面に周方向にフォーマ溝02aが形成されていて同フォーマ溝02aにビードワイヤBが係合して巻き取られてビードリングが形成される。
【0004】
したがって摺動部材04を軸方向に摺動することによりリンク部材05を介してセグメント02を径方向に移動しセグメント02のフォーマ溝02aの径長を拡大・縮小することができ、このフォーマ溝02aの径長がビードリングの周長を決める。
すなわち摺動部材04の摺動によりビードリングの周長調整を行う。
【0005】
【発明が解決しようとする課題】
いま摺動部材04を摺動してセグメント02を図5に示す位置にして周長調整を行ったとし、ビードフォーマ01を回転してセグメント02のフォーマ溝02aにビードワイヤBを巻き付けていく。
【0006】
ビードワイヤBの巻き付けによる巻取りテンションは、セグメント02を径中心方向に押圧し、これに対してリンク部材05を介して摺動部材04が支えている。
ここにリンク部材05は斜めに傾斜しているので、リンク部材05に伝わる応力の軸方向の分力が摺動部材04に作用し、摺動部材04はこれを所定位置で支えなければならない。
【0007】
特にリンク部材05の傾斜が小さくなる程摺動部材04に作用する軸方向の力は大きくなるので、これを支えるのが困難となる。
通常摺動部材04はスプリングにより図5において左方向に付勢されており、スプリングに抗して摺動部材04を右方向に移動してセグメント02を素早く縮径して形成されたビードリングを取り出すようにしているが、このスプリングにより前記巻取りテンションの摺動部材04に作用する力を支えることは難しい。
【0008】
そのため摺動部材04の位置が移動してしまうと、所要の周長のビードリングを形成することができない。
本発明は、斯かる点に鑑みなされたもので、その目的とする処は、簡単な構造で高精度の周長を有するビードリング等環状部材を形成することができる巻取りフォーマを供する点にある。
【0009】
【課題を解決するための手段及び作用効果】
上記目的を達成するために、本発明は、周方向に分割された複数のセグメントが径方向に移動自在に支持され、摺動部材の軸方向の摺動により前記各セグメントが一斉に径方向に移動してその径長が調整され、同セグメントの外周に設けられたフォーマ溝にワイヤを巻き取り環状部材を形成する巻取りフォーマにおいて、前記摺動部材に傾斜面が形成され、前記摺動部材の摺動に対して規制部材により径方向にのみ移動可能に規制された従動子が前記摺動部材の傾斜面に摺動自在に接して楔構造が形成され、前記セグメントと同セグメントより軸中心側の前記従動子とが棒状リンク部材により連結され、前記摺動部材を軸方向に摺動自在に支持するとともに前記規制部材および前記従動子を支持したまま軸方向に摺動可能な摺動支持手段を備え、前記摺動支持手段に対する前記前記摺動部材の軸方向の摺動を前記楔構造により前記従動子の径方向の移動に変向し、前記従動子とともに前記リンク部材を径方向に指向した姿勢のまま径方向に移動し、前記リンク部材を介して前記セグメントを径方向に移動させて前記フォーマ溝の径長が調整され、前記摺動支持手段の摺動により前記従動子とともに前記従動子が連結された前記リンク部材の一端部を軸方向に移動することで前記リンク部材が姿勢を変えて前記リンク部材の前記セグメントに連結される他端部とともに前記セグメントを前記楔構造による前記セグメントの径方向の移動に比較してより大きく径方向に移動させ前記フォーマ溝の径長がより大きく拡大縮小される巻取りフォーマとした。
【0010】
セグメントのフォーマ溝にワイヤを巻き取る際の巻取りテンションは、リンク部材を介して従動子及び摺動部材に作用するが、棒状のリンク部材を径方向に指向させているので、従動子には径方向にのみ力が働き、楔構造を介して摺動部材に作用する軸方向の力は大幅に減少し、摺動部材は容易に所定位置に維持されセグメントのフォーマ溝の径長を一定に維持することが容易にでき、よって高精度の周長を有する環状部材を形成することができる。
【0012】
前記リンク部材が径方向に指向する位置に規制部材を固定しておくことで、摺動部材の摺動によりリンク部材を径方向に指向させたままセグメントを径方向に移動させ環状部材の周長を調整することができ、かつセグメントのフォーマ溝の径長を一定に維持することが容易で高精度の周長を有する環状部材を形成することができる。
摺動部材を規制部材とともに移動すれば、リンク部材を介してセグメントを素早く縮径して環状部材を取り出すことができる。
【0013】
【発明の実施の形態】
以下本発明に係る一実施の形態について図1ないし図4に図示し説明する。
本実施の形態に係る巻取りフォーマは、タイヤ構成部材であるビードリングを形成するビードフォーマ1である。
【0014】
回転自在に支持された円筒状の回転円筒支軸2は長尺本体部2aの後部が拡径した大径部2bを形成していて、同大径部2bには支持円板3が嵌着され、支持円盤3の正面に6本のLMガイド4が放射状に敷設されており、各LMガイド4にスライダ5が径方向に摺動自在に係合し、同スライダ5に正面視扇形状をした扇状摺動板6が一体に支持されている。
【0015】
扇状摺動板6の正面には、外周端部に円弧状にセグメント7が固着され、中央部からはブラケット8が突設されている。
セグメント7の外周面には周方向にフォーマ溝7aが形成されている。
【0016】
一方回転円筒支軸2の長尺本体部2aの外周には摺動自在に摺動スリーブ10が嵌装され、摺動スリーブ10の外周に短尺の外周面にねじが刻設されたねじスリーブ11と長尺の支持スリーブ12が前後に一体に嵌合されている。
【0017】
支持スリーブ12の外周面には摺動部材15が軸方向に摺動自在に設けられ、その後方には径方向に蟻溝16aが形成された規制部材16が支持スリーブ12に一体に突設されている。
【0018】
摺動部材15は、支持スリーブ12に摺動自在に嵌合する円筒軸部15aの外周面6箇所から遠心方向に延出部15bが延出しており、同6個の延出部15bは前記6個のブラケット8にそれぞれ対応し、各延出部15bは円筒軸部15aの一部とともに側面視で概ねコ字形状をし、内側に緩やかな傾斜面をなし後方に開口した矩形の凹部15cが形成されている。
【0019】
同凹部15cに略同形状のスライドブロック17が傾斜面に沿って摺動自在に嵌合されるとともに、同スライドブロック17の後端部17aが後方に延出して前記規制部材16の蟻溝16aに摺動自在に嵌合している。
【0020】
規制部材16は支持スリーブ12に固定されているので、その径方向に指向して形成された蟻溝16aに後端部17aを摺動自在に嵌合したスライドブロック17は、支持スリーブ12に対して軸方向の移動は規制され径方向のみ移動可能である。
【0021】
したがって6個のスライドブロック17を各凹部15cに嵌合した摺動部材15が支持スリーブ12上を軸方向に摺動すると、各スライドブロック17は凹部15cの緩やかな傾斜面に沿って摺動して一斉に径方向に移動する。
すなわち緩やかな傾斜面の凹部15cを有する摺動部材15が楔となって従動子たるスライドブロック17と支持スリーブ12との間に食い込む楔構造を構成している。
【0022】
スライドブロック17にピン20が貫通し、同ピン20の突出した両端と前記ブラケット8を貫通したピン21の両端を一対の棒状のリンク部材22,22が両側から連結している。
摺動部材15が軸方向に摺動し楔構造により6個のスライドブロック17が径方向に移動すればそれぞれリンク部材22を介して6個の扇状摺動板6及びセグメント7が一斉に径方向に移動する。
【0023】
摺動スリーブ10の前端部に嵌着されたねじスリーブ11の外周ねじ部に調整ねじ部材25とナット26が螺合されている。
調整ねじ部材25は、円筒状をなし、前部の内径を縮小した基端部25aの内周面にねじが刻設されてねじスリーブ11に螺合しており、後部は内径を縮小して断面L字状の係合部25bが形成されている。
【0024】
他方前記支持スリーブ12上に摺動自在に嵌合された摺動部材15の円筒軸部15aの前端が拡径して断面L字状の係合部15dが形成されており、同係合部15dと調整ねじ部材25の後端係合部25bが周方向に摺動自在に係合している。
【0025】
以上のような構造により調整ねじ部材25を回動操作すると、係合部25b,15dの係合を介して摺動部材15が軸方向に摺動し、摺動部材15の移動は6個の凹部15cとスライドブロック17の楔構造により従動子たる6個のスライドブロック17を径方向に同時に移動し、各リンク部材22を介して6個のセグメント7を一斉に径方向に移動して同一円周上に配される6個のセグメント7のビードワイヤを巻き付けるフォーマ溝7aの径長を調整することができる。
【0026】
なおナット26を調整ねじ部材25に当接し締め付けることで、調整ねじ部材25をねじスリーブ11上に確実に固定することができる。
この調整ねじ部材25によるセグメント7のフォーマ溝7aの径長調整は、摺動スリーブ10上において行われるものであり、摺動スリーブ10自体はかかる径長調整機構を支持したまま回転円筒支軸2上を軸方向に摺動できる。
【0027】
回転円筒支軸2の長尺本体部2aの後半部に軸方向に長尺の長孔2cが形成されていて、摺動スリーブ10及び支持スリーブ12に貫通し固着されたピン30が長孔2cに摺動自在に嵌入し、さらに内側に延びて回転円筒支軸2の内部に摺動自在に嵌合された円筒形状のバネ受け部材31に嵌着されている。
【0028】
回転円筒支軸2の内部において、バネ受け部材31の後端の内径が縮小した小内径部31aと回転円筒支軸2の前端の小内径部2cとの間にスプリング32が介装されている。
回転円筒支軸2の後端部の内周面にはねじが刻設され、プラグ33が螺入されて、バネ受け部材31の抜け止めとされている。
【0029】
摺動スリーブ10に嵌着した支持スリーブ12の後端部には径方向にブラケット34が軸中心の対称位置に一対突設されており、支持円盤3を円孔において軸方向に貫通した一対のプッシュロッド35の前端がそれぞれ対応するブラケット34に嵌着されている。
【0030】
したがってプッシュロッド35はブラケット34を介して支持スリーブ12及び摺動スリーブ10と一体であるとともに、ピン30を介してバネ受け部材31と一体に軸方向に移動する。
【0031】
バネ受け部材31はスプリング32のバネ力により後方へ付勢されて、他に外力が加わらない場合はプラグ33に当接して定位置に固定され、バネ受け部材31とピン30を介して一体の支持スリーブ12及び規制部材16も定位置に固定されることになり、よって定位置に固定された規制部材16によりスライドブロック17は軸方向位置が定位置に決められ、同軸方向定位置でのみ径方向に移動することになる。
【0032】
このときスライドブロック17を貫通したピン20は、ブラケット8を貫通したピン21と軸方向同じ位置にあり、よって両者を連結する棒状のリンク部材22は、図2及び図3に図示するように軸方向に垂直の径方向に指向している。
リンク部材22が径方向に指向した状態は、摺動部材15の支持スリーブ12に対する軸方向摺動位置に関係なく維持される。
【0033】
ここでプッシュロッド35を前方に押すと、ブラケット34を介して支持プレート12をねじスリーブ11及び前記径長調整機構とともに、さらにバネ受け部材31と一体にスプリング32に抗して前方へ移動することができ、図4に示すように各リンク部材22により連結された扇状摺動板6及び6個のセグメント7を一斉に軸中心方向に移動して6個のセグメント7のフォーマ溝7aの径を大きく縮小することができる。
【0034】
プッシュロッド35への押す力を解除すると、スプリング32のバネ力により径長調整機構等が元の定位置に戻され、リンク部材22は径方向に指向した姿勢となり、6個のセグメント7のフォーマ溝7aの径長を拡大することになる。
【0035】
本ビードフォーマ1は、略以上のような構造をしている。
6個のセグメント7のフォーマ溝7aに巻き付けるビードワイヤBの周長を調整するためには、調整ねじ部材25を回動操作し、摺動部材15を軸方向に摺動して楔構造により6個のスライドブロック17を径方向に移動し、径方向に指向したリンク部材22を介して6個のセグメント7を一斉に径方向に移動してセグメント7のフォーマ溝7aの径長を拡大・縮小する。
【0036】
図1及び図2は、調整ねじ部材25の回動操作により摺動部材15を後方に移動してスライドブロック17を凹部15cの傾斜面に沿って遠心方向に移動させ、リンク部材22を介して6個のセグメント7の径を大きい方へ調整した状態を示しており、セグメント7のフォーマ溝15aに巻き付けられるビードワイヤBにより形成されるビードリングの周長は大きい。
【0037】
これに対し図3(及び図2における2点鎖線)は、摺動部材15を前方に移動してスライドブロック17を凹部15cの傾斜面に沿って径中心方向に移動させ、6個のセグメント7の径を小さい方へ調整した状態を示しており、セグメント7のフォーマ溝7aに巻き付けられて形成されるビードリングの周長は小さい。
【0038】
このようにしてビードリングの周長調整が行われ、フォーマ溝7aにビードワイヤBが巻き付けられていくと、巻取りテンションがセグメント7に作用してセグメント7を径中心方向に押圧するが、リンク部材22は径方向に指向しているので、スライダブロック17には径方向のみに力が加わり、これを楔構造の緩やかな傾斜面で摺動部材15が支えるため、摺動部材15に作用する軸方向の力は大幅に減少して摺動部材15は軸方向の位置ずれを起こさずに確固として固定される。
【0039】
したがってビードワイヤBを巻き取っていくうちに、巻取りテンションによりビードフォーマ溝7aの径長が変化してしまうような不具合を防止することができる。
なお摺動部材15を固定する調整ねじ部材25がねじスリーブ11に螺合され、かつナット26の締め付けにより調整ねじ部材25を固定していることも摺動部材15を固定するのに有効に作用している。
【0040】
フォーマ溝7aにビードワイヤBを巻き取った後は、プッシュロッド35を押せば図4に示すようにフォーマ溝7aが径を大きく縮小し、形成されたビードリングを簡単に取り出すことができる。
そしてプッシュロッド35への力を解除すればスプリング32のバネ力により元の状態に復帰することができ、作業は極めて簡単である。
【図面の簡単な説明】
【図1】本発明の一実施の形態に係るビードフォーマの正面から見た断面図である。
【図2】図1においてII−0−II線に沿って切断した断面図である。
【図3】別の状態を示す図2と同じ断面図である。
【図4】ビード取出し時の状態を示す図2と同じ断面図である。
【図5】従来のビードフォーマの概略構造を示す図である。
【符号の説明】
1…ビードフォーマ、2…回転円筒支軸、3…支持円盤、4…LMガイド、5…スライダ、6…扇状摺動板、7…セグメント、8…ブラケット、
10…摺動スリーブ、11…ねじスリーブ、12…支持スリーブ、15…摺動部材、16…規制部材、17…スライドブロック、
20,21…ピン、22…リンク部材、23…雌ねじ部材、25…調整ねじ部材、26…ナット、
30…ピン、31…バネ受け部材、32…スプリング、33…プラグ、34…ブラケット、35…プッシュロッド。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winding former that winds a wire and forms an annular member having a required circumferential length.
[0002]
[Prior art]
As this type of winding former, for example, there is a bead former for manufacturing a bead ring of a tire, and a schematic structure of a conventional bead former 01 is shown in FIG.
FIG. 5 shows one of a plurality of segments 02 divided in the circumferential direction of the bead former 01. The segment 02 engages with the LM guide 03 oriented in the radial direction and can slide in the radial direction. It is.
[0003]
On the other hand, the sliding member 04 is supported so as to be slidable in the axial direction, and the sliding member 04 and the segment 02 are connected by a rod-shaped link member 05.
A former groove 02a is formed in the circumferential direction on the outer peripheral surface of the segment 02, and the bead wire B is engaged and wound in the former groove 02a to form a bead ring.
[0004]
Accordingly, by sliding the sliding member 04 in the axial direction, the segment 02 can be moved in the radial direction via the link member 05, so that the diameter length of the former groove 02a of the segment 02 can be enlarged / reduced. The diameter of the circle determines the circumference of the bead ring.
That is, the circumference of the bead ring is adjusted by sliding the sliding member 04.
[0005]
[Problems to be solved by the invention]
Assuming that the sliding member 04 is slid and the circumference of the segment 02 is adjusted to the position shown in FIG. 5 and the bead former 01 is rotated, the bead wire B is wound around the former groove 02a of the segment 02.
[0006]
The winding tension by winding the bead wire B presses the segment 02 in the radial center direction, and the sliding member 04 supports the segment 02 via the link member 05 against this.
Here, since the link member 05 is inclined obliquely, the axial component of the stress transmitted to the link member 05 acts on the sliding member 04, and the sliding member 04 must support it at a predetermined position.
[0007]
In particular, since the axial force acting on the sliding member 04 increases as the inclination of the link member 05 decreases, it becomes difficult to support this.
Normally, the sliding member 04 is urged to the left in FIG. 5 by a spring, and a bead ring formed by quickly moving the sliding member 04 to the right against the spring and rapidly reducing the diameter of the segment 02 is used. However, it is difficult to support the force acting on the sliding member 04 of the winding tension by the spring.
[0008]
Therefore, if the position of the sliding member 04 is moved, a bead ring having a required circumference cannot be formed.
The present invention has been made in view of the above points, and the object of the present invention is to provide a winding former that can form an annular member such as a bead ring having a simple structure and a high-precision circumference. is there.
[0009]
[Means for solving the problems and effects]
In order to achieve the above object, according to the present invention, a plurality of segments divided in the circumferential direction are supported so as to be movable in the radial direction, and the segments are simultaneously moved in the radial direction by sliding in the axial direction of the sliding member. In a winding former in which a diameter is adjusted by moving, winding a wire in a former groove provided on the outer periphery of the same segment to form an annular member, an inclined surface is formed on the sliding member, and the sliding member wedge structure is formed follower movably restricted only in the radial direction by the regulating member with respect to the sliding of slidably contact with the inclined surface of the sliding member, the axial center than the segment and this segment The follower on the side is connected by a rod-shaped link member, and the sliding member is slidably supported in the axial direction while supporting the sliding member so as to be slidable in the axial direction and supporting the regulating member and the follower. Equipped with means , By the wedge structure sliding in the axial direction of said sliding member with respect to the slide support means and diverted radial movement of the follower, was directed to the link member in a radial direction together with the follower position The diameter of the former groove is adjusted by moving the segment in the radial direction via the link member, and the follower is moved together with the follower by sliding of the sliding support means. By moving one end of the linked link member in the axial direction, the link member changes its posture and the other end connected to the segment of the link member together with the segment has a diameter of the segment by the wedge structure. Compared to the movement in the direction, the winding former is moved more in the radial direction so that the diameter length of the former groove is further enlarged and reduced.
[0010]
The winding tension when winding the wire in the former groove of the segment acts on the follower and the sliding member via the link member, but the rod-shaped link member is oriented in the radial direction, so the follower has The force acts only in the radial direction, the axial force acting on the sliding member via the wedge structure is greatly reduced, and the sliding member is easily maintained at a predetermined position, and the diameter of the former groove of the segment is made constant. An annular member having a highly accurate circumference can be formed easily.
[0012]
By fixing the regulating member at a position where the link member is oriented in the radial direction, the segment is moved in the radial direction while the link member is oriented in the radial direction by sliding of the sliding member, and the circumference of the annular member Can be adjusted, and it is easy to maintain the diameter length of the former groove of the segment, and an annular member having a highly accurate peripheral length can be formed.
If the sliding member is moved together with the regulating member, the segment can be quickly reduced in diameter via the link member, and the annular member can be taken out.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The winding former according to the present embodiment is a bead former 1 that forms a bead ring that is a tire constituent member.
[0014]
A cylindrical rotating cylindrical support shaft 2 that is rotatably supported forms a large-diameter portion 2b in which the rear portion of the long main body portion 2a is expanded, and a support disk 3 is fitted to the large-diameter portion 2b. Six LM guides 4 are laid radially on the front surface of the support disk 3, and sliders 5 are slidably engaged with the LM guides 4 in the radial direction. The fan-shaped sliding plate 6 is integrally supported.
[0015]
On the front surface of the fan-shaped sliding plate 6, a segment 7 is fixed in an arc shape at the outer peripheral end portion, and a bracket 8 is projected from the center portion.
A former groove 7 a is formed on the outer peripheral surface of the segment 7 in the circumferential direction.
[0016]
On the other hand, a sliding sleeve 10 is slidably fitted on the outer circumference of the long main body 2a of the rotating cylindrical spindle 2, and a screw sleeve 11 having a short outer circumferential surface threaded on the outer circumference of the sliding sleeve 10. And a long support sleeve 12 are integrally fitted to the front and rear.
[0017]
A sliding member 15 is provided on the outer peripheral surface of the support sleeve 12 so as to be slidable in the axial direction, and a regulating member 16 having a dovetail groove 16a formed in the radial direction is integrally provided on the support sleeve 12 at the rear thereof. ing.
[0018]
The sliding member 15 has extending portions 15b extending in the centrifugal direction from six locations on the outer peripheral surface of the cylindrical shaft portion 15a that is slidably fitted to the support sleeve 12, and the six extending portions 15b are the same as those described above. Corresponding to each of the six brackets 8, each extending portion 15 b is generally U-shaped in side view together with a part of the cylindrical shaft portion 15 a, and has a rectangular concave portion 15 c that has a gently sloping surface on the inside and opens rearward. Is formed.
[0019]
A slide block 17 having substantially the same shape is slidably fitted along the inclined surface in the recess 15c, and a rear end portion 17a of the slide block 17 extends rearward so that a dovetail groove 16a of the regulating member 16 is formed. It is slidably fitted to.
[0020]
Since the restricting member 16 is fixed to the support sleeve 12, the slide block 17 in which the rear end portion 17 a is slidably fitted in the dovetail groove 16 a formed in the radial direction is provided with respect to the support sleeve 12. Thus, movement in the axial direction is restricted, and movement in only the radial direction is possible.
[0021]
Therefore, when the slide member 15 having the six slide blocks 17 fitted in the respective recesses 15c slides on the support sleeve 12 in the axial direction, each slide block 17 slides along the gently inclined surface of the recess 15c. Move in the radial direction at once.
In other words, the sliding member 15 having the concave portion 15c having a gently inclined surface serves as a wedge to constitute a wedge structure that bites between the slide block 17 as the follower and the support sleeve 12.
[0022]
A pin 20 passes through the slide block 17, and a pair of rod-like link members 22, 22 connect the projecting ends of the pin 20 and the ends of the pin 21 penetrating the bracket 8 from both sides.
If the sliding member 15 slides in the axial direction and the six slide blocks 17 move in the radial direction due to the wedge structure, the six fan-shaped sliding plates 6 and the segments 7 are simultaneously moved in the radial direction via the link members 22, respectively. Move to.
[0023]
An adjusting screw member 25 and a nut 26 are screwed to the outer peripheral thread portion of the screw sleeve 11 fitted to the front end portion of the sliding sleeve 10.
The adjustment screw member 25 has a cylindrical shape, a screw is engraved on the inner peripheral surface of the base end portion 25a whose inner diameter is reduced at the front portion, and is screwed into the screw sleeve 11, and the rear portion is reduced in inner diameter. An engaging portion 25b having an L-shaped cross section is formed.
[0024]
On the other hand, the front end of the cylindrical shaft portion 15a of the sliding member 15 slidably fitted on the support sleeve 12 is expanded to form an engaging portion 15d having an L-shaped cross section. 15d and the rear end engaging portion 25b of the adjusting screw member 25 are slidably engaged in the circumferential direction.
[0025]
When the adjustment screw member 25 is rotated by the structure as described above, the sliding member 15 slides in the axial direction through the engagement of the engaging portions 25b and 15d, and the movement of the sliding member 15 is six. Due to the wedge structure of the recess 15c and the slide block 17, the six slide blocks 17 as the followers are simultaneously moved in the radial direction, and the six segments 7 are simultaneously moved in the radial direction via the link members 22 so as to have the same circle. The diameter length of the former groove 7a around which the bead wires of the six segments 7 arranged on the circumference are wound can be adjusted.
[0026]
Note that the adjustment screw member 25 can be securely fixed onto the screw sleeve 11 by abutting and tightening the nut 26 on the adjustment screw member 25.
The adjustment of the diameter of the former groove 7a of the segment 7 by the adjusting screw member 25 is performed on the sliding sleeve 10, and the sliding sleeve 10 itself supports the rotating cylindrical support shaft 2 while supporting the diameter adjusting mechanism. It can slide in the axial direction.
[0027]
A long elongated hole 2c is formed in the rear half of the elongated main body 2a of the rotary cylindrical spindle 2 in the axial direction, and a pin 30 penetrating and fixed to the sliding sleeve 10 and the support sleeve 12 is formed in the elongated hole 2c. It is slidably fitted in the cylinder and is further fitted in a cylindrical spring receiving member 31 that extends inward and is slidably fitted into the rotary cylindrical spindle 2.
[0028]
Inside the rotary cylindrical spindle 2, a spring 32 is interposed between a small inner diameter portion 31 a having a reduced inner diameter at the rear end of the spring receiving member 31 and a small inner diameter portion 2 c at the front end of the rotary cylindrical spindle 2. .
A screw is engraved on the inner peripheral surface of the rear end portion of the rotating cylindrical spindle 2, and a plug 33 is screwed to prevent the spring receiving member 31 from coming off.
[0029]
A pair of brackets 34 project radially from the rear end portion of the support sleeve 12 fitted to the sliding sleeve 10 at symmetrical positions about the shaft center, and a pair of shafts penetrating the support disk 3 in the axial direction in the circular holes. The front ends of the push rods 35 are fitted into the corresponding brackets 34, respectively.
[0030]
Therefore, the push rod 35 is integral with the support sleeve 12 and the sliding sleeve 10 via the bracket 34 and moves in the axial direction integrally with the spring receiving member 31 via the pin 30.
[0031]
The spring receiving member 31 is urged rearward by the spring force of the spring 32.If no other external force is applied, the spring receiving member 31 contacts the plug 33 and is fixed at a fixed position. The support sleeve 12 and the restricting member 16 are also fixed at a fixed position. Therefore, the axial position of the slide block 17 is fixed at the fixed position by the restricting member 16 fixed at the fixed position, and the diameter is only at the fixed position in the coaxial direction. Will move in the direction.
[0032]
At this time, the pin 20 penetrating the slide block 17 is at the same axial position as the pin 21 penetrating the bracket 8, so that the rod-like link member 22 connecting both the shafts as shown in FIGS. It is oriented in the radial direction perpendicular to the direction.
The state in which the link member 22 is oriented in the radial direction is maintained regardless of the axial sliding position of the sliding member 15 relative to the support sleeve 12.
[0033]
Here, when the push rod 35 is pushed forward, the support plate 12 is moved forward together with the screw sleeve 11 and the diameter length adjusting mechanism together with the spring receiving member 31 against the spring 32 through the bracket 34. As shown in FIG. 4, the fan-shaped sliding plate 6 and the six segments 7 connected by the link members 22 are moved in the axial direction at the same time, so that the diameter of the former grooves 7a of the six segments 7 is reduced. It can be greatly reduced.
[0034]
When the pushing force to the push rod 35 is released, the radial length adjusting mechanism and the like are returned to the original fixed position by the spring force of the spring 32, and the link member 22 assumes a posture oriented in the radial direction. The diameter of the groove 7a will be enlarged.
[0035]
The bead former 1 has a structure substantially as described above.
In order to adjust the circumferential length of the bead wire B wound around the former grooves 7a of the six segments 7, the adjusting screw member 25 is rotated, and the sliding member 15 is slid in the axial direction so that six The slide block 17 is moved in the radial direction, and the six segments 7 are simultaneously moved in the radial direction via the link members 22 oriented in the radial direction to enlarge / reduce the radial length of the former grooves 7a of the segments 7. .
[0036]
1 and 2, the sliding member 15 is moved rearward by the turning operation of the adjusting screw member 25, and the slide block 17 is moved in the centrifugal direction along the inclined surface of the recess 15c. 6 shows a state in which the diameters of the six segments 7 are adjusted to be larger, and the circumference of the bead ring formed by the bead wires B wound around the former grooves 15a of the segments 7 is large.
[0037]
On the other hand, in FIG. 3 (and the two-dot chain line in FIG. 2), the sliding member 15 is moved forward to move the slide block 17 along the inclined surface of the concave portion 15c in the radial center direction. The bead ring formed by being wound around the former groove 7a of the segment 7 is small.
[0038]
When the circumference of the bead ring is adjusted in this way and the bead wire B is wound around the former groove 7a, the winding tension acts on the segment 7 to press the segment 7 in the radial center direction. Since 22 is oriented in the radial direction, a force is applied to the slider block 17 only in the radial direction, and this is supported by the sliding member 15 on the gently inclined surface of the wedge structure. The direction force is greatly reduced, and the sliding member 15 is firmly fixed without causing any axial displacement.
[0039]
Therefore, it is possible to prevent a problem that the diameter length of the bead former groove 7a is changed by the winding tension while winding the bead wire B.
The adjusting screw member 25 for fixing the sliding member 15 is screwed to the screw sleeve 11 and the adjusting screw member 25 is fixed by tightening the nut 26. This also works effectively for fixing the sliding member 15. is doing.
[0040]
After winding the bead wire B around the former groove 7a, if the push rod 35 is pushed, the diameter of the former groove 7a is greatly reduced as shown in FIG. 4, and the formed bead ring can be easily taken out.
If the force to the push rod 35 is released, the spring 32 can return to the original state, and the operation is extremely simple.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a bead former according to an embodiment of the present invention as viewed from the front.
2 is a cross-sectional view taken along line II-0-II in FIG.
3 is the same cross-sectional view as FIG. 2 showing another state.
4 is a cross-sectional view similar to FIG. 2 showing a state when a bead is taken out. FIG.
FIG. 5 is a view showing a schematic structure of a conventional bead former.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Bead former, 2 ... Rotary cylindrical spindle, 3 ... Support disk, 4 ... LM guide, 5 ... Slider, 6 ... Fan-shaped sliding plate, 7 ... Segment, 8 ... Bracket,
10 ... sliding sleeve, 11 ... screw sleeve, 12 ... support sleeve, 15 ... sliding member, 16 ... regulating member, 17 ... sliding block,
20, 21 ... pin, 22 ... link member, 23 ... female screw member, 25 ... adjustment screw member, 26 ... nut,
30 ... pin, 31 ... spring receiving member, 32 ... spring, 33 ... plug, 34 ... bracket, 35 ... push rod.

Claims (1)

周方向に分割された複数のセグメントが径方向に移動自在に支持され、摺動部材の軸方向の摺動により前記各セグメントが一斉に径方向に移動してその径長が調整され、同セグメントの外周に設けられたフォーマ溝にワイヤを巻き取り環状部材を形成する巻取りフォーマにおいて、
前記摺動部材に傾斜面が形成され、
前記摺動部材の摺動に対して規制部材により径方向にのみ移動可能に規制された従動子が前記摺動部材の傾斜面に摺動自在に接して楔構造が形成され、
前記セグメントと同セグメントより軸中心側の前記従動子とが棒状リンク部材により連結され、
前記摺動部材を軸方向に摺動自在に支持するとともに前記規制部材および前記従動子を支持したまま軸方向に摺動可能な摺動支持手段を備え、
前記摺動支持手段に対する前記前記摺動部材の軸方向の摺動を前記楔構造により前記従動子の径方向の移動に変向し、前記従動子とともに前記リンク部材を径方向に指向した姿勢のまま径方向に移動し、前記リンク部材を介して前記セグメントを径方向に移動させて前記フォーマ溝の径長が調整され、
前記摺動支持手段の摺動により前記従動子とともに前記従動子が連結された前記リンク部材の一端部を軸方向に移動することで前記リンク部材が姿勢を変えて前記リンク部材の前記セグメントに連結される他端部とともに前記セグメントを前記楔構造による前記セグメントの径方向の移動に比較してより大きく径方向に移動させ前記フォーマ溝の径長がより大きく拡大縮小されることを特徴とする巻取りフォーマ。
A plurality of segments divided in the circumferential direction are supported so as to be movable in the radial direction, and by sliding in the axial direction of the sliding member, the segments are moved in the radial direction at the same time and the diameter length thereof is adjusted. In a winding former that forms a ring member by winding a wire in a former groove provided on the outer periphery of
An inclined surface is formed on the sliding member,
A wedge structure is formed in which the follower, which is regulated so as to be movable only in the radial direction by the regulating member with respect to the sliding of the sliding member, is slidably in contact with the inclined surface of the sliding member,
The segment and the follower on the axial center side from the same segment are connected by a bar-shaped link member,
A sliding support means for slidably supporting the sliding member in the axial direction and capable of sliding in the axial direction while supporting the regulating member and the follower;
The sliding direction of the sliding member relative to the sliding support means is changed to the radial movement of the follower by the wedge structure, and the link member is oriented in the radial direction together with the follower. The radial length of the former groove is adjusted by moving in the radial direction, moving the segment in the radial direction via the link member,
The link member changes its attitude by moving one end portion of the link member to which the follower is connected together with the follower by sliding of the sliding support means, and the link member changes its posture and is connected to the segment of the link member. The winding is characterized in that the diameter of the former groove is further enlarged and reduced by moving the segment together with the other end to be moved in the radial direction larger than the movement of the segment in the radial direction by the wedge structure . Take former.
JP14683599A 1999-05-26 1999-05-26 Winding former Expired - Lifetime JP4342033B2 (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323407B1 (en) * 2011-12-15 2013-10-29 손정남 product jig for wire cord cloth
CN105033124A (en) * 2015-08-26 2015-11-11 南京航空航天大学 Manufacturing and mounting device for elastic ring of mechanical elastic wheel
US20170106617A1 (en) * 2015-10-14 2017-04-20 Bartell Machinery Systems, L.L.C. Quick-change bead former

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4278565B2 (en) * 2004-05-28 2009-06-17 株式会社ブリヂストン Bead forming method and apparatus
RU2607752C9 (en) 2012-06-22 2019-07-18 Фудзи Сейко Ко., Лтд. Winding device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323407B1 (en) * 2011-12-15 2013-10-29 손정남 product jig for wire cord cloth
CN105033124A (en) * 2015-08-26 2015-11-11 南京航空航天大学 Manufacturing and mounting device for elastic ring of mechanical elastic wheel
US20170106617A1 (en) * 2015-10-14 2017-04-20 Bartell Machinery Systems, L.L.C. Quick-change bead former

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