JP2772929B2 - Continuous forming method of torsion bar and torsion feeder - Google Patents
Continuous forming method of torsion bar and torsion feederInfo
- Publication number
- JP2772929B2 JP2772929B2 JP31776294A JP31776294A JP2772929B2 JP 2772929 B2 JP2772929 B2 JP 2772929B2 JP 31776294 A JP31776294 A JP 31776294A JP 31776294 A JP31776294 A JP 31776294A JP 2772929 B2 JP2772929 B2 JP 2772929B2
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- JP
- Japan
- Prior art keywords
- bar
- section
- pair
- polygonal cross
- long
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【０００１】[0001]
【産業上の利用分野】この発明は捩じれ棒（ツイストロ
ッド）の連続成形法と、そのための捩じれ棒の捩じり送
り装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously forming a torsion rod (twist rod) and a torsion feeder for the torsion rod.
【０００２】[0002]
【従来の技術】捩じれ棒は角棒その他の非円形断面の棒
材に捩じれを与えたもので、外観の意匠効果や、鉄筋と
してコンクリートとの固着効果を上げる等の目的で作ら
れている。捩じれ棒を作るために、特開平３−２８１０
２３号公報には、１０００℃程度に加熱した捩じるべき
非円形断面の直線棒材をガイドに設けた同形のガイド穴
に押込み用ローラで押込みつつ、そのガイドを所定角度
回転させて捩じる方法が開示されている。2. Description of the Related Art A torsion bar is obtained by twisting a square bar or other bar material having a non-circular cross section, and is made for the purpose of improving the design effect of the appearance and the effect of fixing the reinforcing bar to concrete. In order to make a torsion bar, see Japanese Patent Application Laid-Open No. 3-2810.
No. 23 discloses that a linear bar having a non-circular cross section to be twisted and heated to about 1000 ° C. is pushed into a guide hole of the same shape provided in the guide by a pushing roller, and the guide is rotated by a predetermined angle and twisted. A method is disclosed.
【０００３】[0003]
【発明が解決しようとする課題】上記公開公報の方法
は、捩じるべき直線棒材を１０００℃程度に加熱しなけ
ればならないため、加熱設備と酸化防止設備又は酸化皮
膜除去設備を要する。また、ガイド穴を有するガイドは
所定の一定角度しか回転させることができないため、押
込用ローラとガイド穴との間で捩じることができる棒材
の長さには限度がある。The method disclosed in the above publication requires heating a straight bar to be twisted to about 1000 ° C., and thus requires a heating facility and an antioxidant facility or an oxide film removing facility. Further, since a guide having a guide hole can rotate only a predetermined fixed angle, there is a limit to the length of a rod that can be twisted between the pushing roller and the guide hole.
【０００４】[0004]
【課題を解決するための手段】本発明者は長尺棒材に捩
じりを加えつつ、連続的に引取るという着想に基づいて
本発明を開発したのであって、この発明の捩じれ棒の連
続成形法は、円に内接する多角形断面の長尺棒材をほぼ
同形の多角形断面の固定ダイスの穴に通し、上記円の直
径に近い直径の丸棒をくわえることができる一対の無限
軌道により、上記固定ダイスの孔から出て来た前記長尺
棒材をくわえて直線状に引取りつつ、その一対の無限軌
道を当該長尺棒材のまわりに回転させることにより、上
記固定ダイスと一対の無限軌道との間で前記長尺棒材を
捩じって送り出すことを特徴とする。The inventor of the present invention has developed the present invention based on the idea of continuously pulling a long bar while applying a twist to the long bar. In the continuous forming method, a long bar material of polygonal cross section inscribed in a circle is passed through a hole of a fixed die having a polygonal cross section of approximately the same shape, and a pair of infinities capable of holding a round bar having a diameter close to the diameter of the circle is added. By rotating the pair of endless tracks around the long bar while taking the long bar coming out of the hole of the fixed die in a straight line by the track, the fixed die The long bar is twisted and sent out between a pair of endless tracks.
【０００５】尚、その多角形断面の長尺棒材は、複数個
の成形ローラの周面を寄せ集めて目的とする捩じれ棒の
断面と同じ多角形断面の棒材通路を形成し、上記多角形
断面の棒材をくわえることができる送りローラにより長
尺の金属丸棒を上記棒材通路から引抜いて所要の多角形
断面にしたものにすれば、冷間加工で丸棒素材から一貫
して捩じれ棒を生産することが出来る。The long bar having a polygonal cross section is formed by gathering the peripheral surfaces of a plurality of forming rollers to form a bar passage having the same polygonal cross section as the cross section of the target torsion bar. If a long metal round bar is pulled out from the above-mentioned bar passage to the required polygonal cross section by a feed roller that can add a bar with a square cross section, it can be consistently cut from the round bar material by cold working Can produce torsion bars.
【０００６】この発明の捩じれ棒の捩じり送り装置は、
前部と後部との中心に、捩じるべき多角形断面の長尺棒
材の進入路、退出路となる中空回転軸を設けた回転機
枠、この回転機枠内に取付けられ、上記進入路と退出路
との間で前記長尺棒材をくわえて送り出す一対の無限軌
道、上記中空回転軸の外周に遊嵌され、外力の駆動を受
けて、上記一対の無限軌道をそれぞれの伝動機構を介し
て同期駆動する中央駆動輪、及び上記中空回転軸を駆動
して上記回転機枠を回す回転機枠の駆動機構を備え、上
記一対の無限軌道の相対向したシューの各踏面は捩じる
べき前記長尺棒材の多角形断面の外接円に近い断面寸法
の丸棒をくわえることができる凹溝を備えていることを
特徴とする。A torsion bar torsion feeder according to the present invention comprises:
A rotary machine frame provided with a hollow rotary shaft serving as an entrance path and an exit path of a long bar having a polygonal cross section to be twisted at the center between the front and rear parts. A pair of endless tracks for feeding the long bar material between the road and the exit path, and loosely fitted on the outer periphery of the hollow rotary shaft, and driven by an external force to drive the pair of endless tracks into respective transmission mechanisms. A central driving wheel synchronously driven through the shaft, and a driving mechanism of a rotating machine frame that drives the hollow rotating shaft to rotate the rotating machine frame, and each of the treads of the opposed shoes of the pair of endless tracks is twisted. It is characterized in that it has a concave groove capable of holding a round bar having a cross-sectional dimension close to the circumscribed circle of the polygonal cross-section of the long bar to be formed.
【０００７】[0007]
【作用】本発明は、多角形断面の長尺棒材を挟持手段で
真直ぐに引取りながら、その挟持手段を前記長尺棒材の
周りで回転させる様にし、その挟持手段として、ゴムで
被覆した電線やホース類の生産ラインで、製品の表面に
傷をつけないように挟んで引取る一対の無限軌道を使用
することにした。According to the present invention, while a long bar having a polygonal cross section is taken straight by a holding means, the holding means is rotated around the long bar, and the holding means is covered with rubber. We decided to use a pair of endless tracks to pull the wire and hoses out of the product line without damaging the product surface.
【０００８】一般に無限軌道は多数のシュー（踏片）を
無端につないで循環させるが、それぞれのシューの踏面
は同形で、挟んで引取る線や棒材に合わせた凹溝になっ
ている。しかし、この発明の構想に従い多角形断面の長
尺棒材を引取りながら捩じりも加えるとなると、無限軌
道の各シューの踏面は次々と捩じられて入って来る長尺
棒材をくわえねばならない。それには各踏面の凹溝の形
を次々と変えて捩じりに対応させないと確実な挟持はで
きないが、それは至難である。In general, the endless track circulates by connecting a number of shoes (step pieces) endlessly, and the tread surface of each shoe has the same shape and is a concave groove adapted to a line or a bar material to be sandwiched and drawn. However, according to the concept of the present invention, if the torsion is added while the long bar having a polygonal cross section is taken, the tread surface of each shoe of the endless track is twisted one after another, and the long bar which enters is added. I have to. To do so, it is impossible to reliably pinch unless the shape of the groove on each tread is changed one after another to cope with torsion, but it is extremely difficult.
【０００９】多角形断面の長尺棒材を挟んで引取りなが
ら捩じりを与える手段として最適と思われた一対の無限
軌道の使用も、捩じられた棒材をくわえることができる
踏面の難しさが暗礁となった。これを乗り越えた着想
は、捩じれ棒の素材を円に内接する多角形断面に制限
し、その素材も捩じれ棒も上記円を断面にした丸棒と考
え、扱うことである。丸棒を挟持する無限軌道は周知
で、その各踏面は丸棒の寸法変化に対応できる凹溝とし
て普通、鈍角のＶ形溝になっている。一対の無限軌道の
間へ入り込んで来る捩じられた棒材の各角部は外接円の
円周に位置するから、無限軌道のシューの踏面が、その
外接円が周面になった丸棒をくわえることができる凹溝
になっていれば、無限軌道の間に入り込んで来る捩じら
れた棒材の角部は無限軌道のシューの踏面のいずれかに
挟持されることになる。そして、無限軌道の挟持部は長
いから、捩じられた棒材は何箇所かで無限軌道のシュー
によって確実にくわえられる。[0009] The use of a pair of endless tracks, which seemed to be the most suitable as a means for applying a torsion while pulling a long bar having a polygonal cross section, is not limited to the use of a tread capable of holding a twisted bar. Difficulty became a reef. The idea of overcoming this is to limit the material of the torsion bar to a polygonal cross section inscribed in a circle, and treat both the material and the torsion bar as a round bar having a cross section of the circle. Endless tracks for holding round bars are well known, and each tread surface is usually an obtuse V-shaped groove as a concave groove capable of accommodating dimensional changes of the round bar. Since each corner of the twisted rod that enters between a pair of endless tracks is located on the circumference of the circumscribed circle, the tread surface of the shoe of the endless track is a round bar with the circumscribed circle on the circumference. In this case, the corners of the twisted rod that enters between the endless tracks will be clamped by any of the treads of the shoes of the endless track. And since the holding part of an endless track is long, the twisted bar is reliably held by the shoes of the endless track at several places.
【００１０】工業的に捩じれ棒を連続生産する場合、素
材は丸棒で、コイルから引出すことになる。丸棒の素材
を冷間加工で所要の多角形の断面形状にする方法とし
て、複数個の成形ローラで形成した多角形断面の棒材通
路に丸棒の素材を通し送りローラで引抜く事も提案し
た。この発明の方法に不可欠な捩じれ棒の捩じり送り装
置については、在来の一対の無限軌道を回転機枠内に取
付け、その前部と後部との中心に設けた中空回転軸を長
尺棒材の進入路と退出路とにしたので、長尺棒材は案内
機構不要で確実に一対の無限軌道の間の中心線に沿って
直線状に進み、歪みなく退出する。そしてその中空回転
軸に中央駆動輪を遊嵌し、外部から中央駆動輪を駆動す
れば挟んでいる長尺棒材の周りで回転中の一対の無限軌
道を同期して循環駆動することができる。[0010] In the case of continuous production of a torsion bar industrially, the material is a round bar, which is drawn from a coil. As a method of cold-working a round bar material into a required polygonal cross-sectional shape, it is also possible to pass the round bar material through a polygonal bar passage formed by a plurality of forming rollers and pull it out with a feed roller. Proposed. As for the twist rod torsion feeder which is indispensable to the method of the present invention, a pair of conventional endless tracks are mounted in a rotary machine frame, and a hollow rotary shaft provided at the center between the front and rear portions is elongated. Since the entrance and exit paths of the bar are used, the long bar reliably advances linearly along the center line between the pair of endless tracks without a guide mechanism, and exits without distortion. If the central drive wheel is loosely fitted to the hollow rotary shaft and the central drive wheel is driven from the outside, a pair of rotating endless orbits can be synchronously driven to rotate around the long bar material sandwiched therebetween. .
【００１１】[0011]
【実施例】図１はこの発明の方法を実施する設備の一例
で、図示しないが図の左方に丸棒の素材を巻取ったコイ
ル、それから引出した丸棒素材の癖とり矯正機があっ
て、そこから出て来た丸棒の素材が図１左端のフォーミ
ング部１へ入る。フォーミング部１は図２のように複数
個の成形ローラ１ａで囲んだ断面形状が多角形の棒材通
路Ｐに丸棒素材を通すことにより、丸棒の断面形状をこ
の例では正方形に冷間成形する。そのためフォーミング
部１の前には強力な引抜き用送りローラ２（図１）が列
設してある。各ローラの周面は正方形断面の長尺棒材を
くわえて送り駆動できるよう、角度９０°のＶ形溝にし
てある。なおフォーミング部１と送りローラ２との間
に、上記長尺棒材の速度と送り長さとを測る周知の測定
部３が配置してある。FIG. 1 shows an example of equipment for carrying out the method of the present invention. Although not shown, a coil having a round bar material wound thereon and a straightening machine for removing a round bar material drawn therefrom are provided on the left side of the figure. Then, the raw material of the round bar coming out from there enters the forming part 1 at the left end in FIG. As shown in FIG. 2, the forming section 1 is formed by passing a round bar material through a rod passage P having a polygonal cross section surrounded by a plurality of forming rollers 1a, so that the cross section of the round bar is cold to a square in this example. Molding. Therefore, in front of the forming section 1, a powerful pulling feed roller 2 (FIG. 1) is arranged. The peripheral surface of each roller is a V-shaped groove having an angle of 90 ° so that a long bar having a square cross section can be fed and driven. A well-known measuring unit 3 for measuring the speed and feed length of the long bar is disposed between the forming unit 1 and the feed roller 2.
【００１２】図１の送りローラ２から出た長尺棒材は案
内管４から案内管６へと進む。案内管６は図３のよう
に、位置決め支持部５に後端部を固定され、大部分は回
転機枠１０ａの後部中心に設けられた中空回転軸１１内
に突入している。この案内管６の前端には棒材回り止め
用の角穴７ａを有する固定ダイス７が設けてあり、この
固定ダイスの角穴７ａを出た長尺棒材は直ちに一対の無
限軌道８、８にくわえられ、捩じられる。従って、長尺
棒材はこのダイス７と一対の無限軌道８、８の入口との
間でねじれ棒になる。図４の一対の無限軌道８、８の相
対向したシューの踏面８ａ、８ａは、正方形断面の長尺
棒材９の外接円９ａをくわえる丸棒用の鈍角Ｖ溝である
から、長尺棒材９が図５のように捩じれていても、長尺
棒材９を図４の実線及び鎖線に示すように確実に挟持す
る。The long bar coming out of the feed roller 2 in FIG. 1 advances from the guide tube 4 to the guide tube 6. As shown in FIG. 3, the guide tube 6 has a rear end portion fixed to the positioning support portion 5, and most of the guide tube 6 protrudes into a hollow rotary shaft 11 provided at the rear center of the rotary machine frame 10a. A fixed die 7 having a square hole 7a for preventing rotation of the bar is provided at the front end of the guide tube 6, and a long bar material that has come out of the square hole 7a of the fixed die is immediately turned into a pair of endless tracks 8,8. In addition, it is twisted. Therefore, the long bar becomes a torsion bar between the die 7 and the entrance of the pair of endless tracks 8,8. Since the tread surfaces 8a, 8a of the opposed shoes of the pair of endless tracks 8, 8 in FIG. 4 are obtuse V-grooves for a round bar that includes a circumscribed circle 9a of a long bar 9 having a square cross section, Even if the member 9 is twisted as shown in FIG. 5, the long bar 9 is securely held as shown by the solid line and the chain line in FIG.
【００１３】長尺棒材９を踏面８ａで挟持した一対の無
限軌道８、８を支持し、該棒材９の回りに回転させるの
が、捩じり送り装置１０であって、これを図６、７によ
り説明する。回転機枠１０ａの後部と前部との中心に中
空回転軸１１、１２を設け、これらを軸受１１ａ、１２
ａで支え回転機枠１０ａを回転可能に支持する。後部の
中空回転軸１１には図３に示すように、前述の回り止め
用固定ダイス７を先端に取付けた案内管６が内部に突入
し、外部にチエン車１３を固定している。このチエン車
１３は図１に示すように下方の駆動モータＭにより回さ
れ、中空回転軸１１を介して回転機枠１０ａを回す。A torsion feeder 10 supports a pair of endless tracks 8, 8 having a long bar 9 sandwiched between treads 8a, and rotates the bar 9 around the same. This will be described with reference to FIGS. Hollow rotary shafts 11 and 12 are provided at the center of the rear and front portions of the rotary machine frame 10a, and these are mounted on bearings 11a and 12
a and rotatably supports the rotating machine frame 10a. As shown in FIG. 3, a guide tube 6 having the above-described fixing die 7 for rotation prevention attached to the tip of the rear hollow rotary shaft 11 projects into the inside, and a chain wheel 13 is fixed to the outside. The chain wheel 13 is rotated by a lower drive motor M as shown in FIG. 1, and rotates the rotary machine frame 10a via the hollow rotary shaft 11.
【００１４】回転機枠１０ａは内部に一対の無限軌道８
を取付け、また各無限軌道をそれぞれ駆動する伝動機構
のチエン１４、傘歯車１５、平歯車１６等も取付けてあ
る。従って図６の左端のチエン車１３により回転機枠１
０ａが回されると、無限軌道８、８の各伝動機構も一緒
に回る。その回っている伝動機構を定位置で同期駆動す
るのが、図６の右方の前部中空回転軸１２に遊嵌された
中央駆動輪（チエン車）１７と、これに付属する平歯車
１８であり、駆動輪１７は図７の磁粉クラッチＣを介し
て、モータＭ′により駆動される。The rotating machine frame 10a has a pair of endless tracks 8 inside.
In addition, a chain 14, a bevel gear 15, a spur gear 16 and the like of a transmission mechanism for driving each endless track are also mounted. Accordingly, the rotating machine frame 1 is driven by the chain wheel 13 at the left end in FIG.
When 0a is turned, the transmission mechanisms of the endless tracks 8, 8 also turn together. Synchronously driving the rotating transmission mechanism at a fixed position is performed by a central drive wheel (chain wheel) 17 loosely fitted to the right front hollow rotary shaft 12 in FIG. 6 and a spur gear 18 attached thereto. The driving wheel 17 is driven by a motor M 'via a magnetic powder clutch C shown in FIG.
【００１５】図７は回転機枠１０ａ、各無限軌道８のそ
れぞれの駆動系統説明図であり、モータＭはチエン車１
３を介して回転機枠１０ａ全体を回す。モータＭ´は磁
粉クラッチＣによりトルク制御して中央駆動輪１７と付
属する平歯車１８を回し、各無限軌道８、８のそれぞれ
の伝動機構を同期駆動する。これで一対の無限軌道８、
８は循環運動して長尺棒材の引取り動作を続けつつ、く
わえた長尺棒材のまわりに回転して、長尺棒材の送り
と、捩じりの両方の作用を行なう。以上、図示した一実
施例について説明したが、この発明はその要旨を変える
ことなく、実施条件に合わせて多様に変化、応用し得る
こと言うまでもない。上記実施例は鋼棒でも加熱するこ
となく連続成形できるが、この発明の方法を冷間成形に
限定するものではない。FIG. 7 is an explanatory view of the drive system of the rotating machine frame 10a and each of the endless tracks 8.
3, the entire rotating machine frame 10a is turned. The motor M ′ controls the torque by the magnetic powder clutch C to rotate the central drive wheel 17 and the attached spur gear 18 to synchronously drive the respective transmission mechanisms of the endless tracks 8. This makes a pair of endless tracks 8,
Numeral 8 rotates around the held long bar while continuing the take-up operation of the long bar in a circulating motion to perform both the feeding and twisting of the long bar. Although the illustrated embodiment has been described above, it goes without saying that the present invention can be variously changed and applied in accordance with the implementation conditions without changing the gist. In the above embodiment, the steel rod can be continuously formed without heating, but the method of the present invention is not limited to cold forming.
【００１６】[0016]
【発明の効果】この発明は、長尺ゴム棒などの引取りに
従来から使用された一対の無限軌道を、敢えて鋼棒など
の引取り、捩じり手段とすることにより成功した。すで
に捩じられた長尺棒材を確実にくわえる無限軌道の踏面
の形が最大の難関であったが、捩じられた棒材をこれに
外接する丸棒と見なし、その丸棒をくわえることができ
る凹溝とする事により解決した。The present invention has succeeded by using a pair of endless tracks conventionally used for picking up a long rubber rod or the like as means for picking up and twisting a steel bar or the like. The shape of the track on the endless track that reliably twisted the long bar was the biggest challenge, but consider the twisted bar as a circumscribed round bar and add the round bar The problem was solved by using a concave groove that can be used.
【００１７】この発明の捩じり送り装置は、捩じられて
入って来る長尺棒材をくわえて捩じり回転させながら、
連続して送り出すという複合作用を行う。送り出し作用
をする一対の無限軌道はシューによる挟持部分が長く連
続しているので、シューの踏面を丸棒をくわえることが
できる凹溝にすることにより円に内接する多角形断面の
捩じれ棒を確実にくわえられる事を実証した。一対の無
限軌道を長尺棒材のまわりに回転させつつ両無限軌道を
同期駆動するためには、回転機枠を支える中空回転軸に
中央駆動輪を遊嵌する簡単な構成を提示した。この発明
により円に内接する多角形断面の長尺棒材から捩じれ棒
を連続的に成形することを可能にした技術的、経済的効
果は極めて大きい。The torsion feeder of the present invention twists and rotates a long bar material that is twisted and enters,
Performs the combined action of sending out continuously. Since the pair of endless tracks that perform the feeding action has a long and continuous portion held by the shoe, the tread surface of the shoe is a concave groove that can hold a round bar, so that a torsion bar with a polygonal cross section inscribed in a circle is ensured. Prove that it can be added. In order to synchronously drive both endless tracks while rotating a pair of endless tracks around a long bar, a simple configuration in which a central drive wheel is loosely fitted to a hollow rotary shaft supporting a rotating machine frame is presented. According to the present invention, it is possible to continuously form a torsion bar from a long bar having a polygonal cross section inscribed in a circle.
【図１】この発明の実施設備の一例を示す立面図であ
る。FIG. 1 is an elevational view showing an example of equipment for implementing the present invention.
【図２】図１の左端のフォーミング部の拡大正面図であ
る。FIG. 2 is an enlarged front view of a forming part at a left end in FIG. 1;
【図３】図１の部分拡大立面図である。FIG. 3 is a partially enlarged elevation view of FIG. 1;
【図４】一対の無限軌道の相対向したシューの踏面と捩
じれた棒材との関係説明図である。FIG. 4 is an explanatory view showing a relationship between a tread surface of a pair of opposed tracks of a pair of endless tracks and a twisted bar.
【図５】捩じれ棒の一例の斜視図である。FIG. 5 is a perspective view of an example of a torsion bar.
【図６】この発明の捩じり送り装置の一実施例の立面図
である。FIG. 6 is an elevational view of one embodiment of the torsional feed device of the present invention.
【図７】図６の駆動系統説明図である。FIG. 7 is an explanatory diagram of the drive system of FIG. 6;
【符号の説明】 １ フォーミング部 ２ 引抜き用送りローラ ４ 案内管 ６ 案内管 ７ 固定ダイス ７ａ 固定ダイスの角穴 ８ 無限軌道 ８ａ 無限軌道のシューの踏面 ９ 多角形断面の長尺棒材 ９ａ 長尺棒材の外接円 １０ 捩じり送り装置 １１ 中空回転軸 １２ 中空回転軸 １７ 中央駆動輪[Description of Signs] 1 Forming part 2 Feeding roller for pull-out 4 Guide tube 6 Guide tube 7 Fixed die 7a Square hole of fixed die 8 Endless track 8a Tread surface of shoe of endless track 9 Long bar material of polygonal section 9a Long Circumcircle of a rod 10 torsion feeder 11 hollow rotary shaft 12 hollow rotary shaft 17 central drive wheel
Claims (3)
ぼ同形の多角形断面の固定ダイスの穴に通し、上記円の
直径に近い直径の丸棒をくわえることができる一対の無
限軌道により、上記固定ダイスの孔から出て来た前記長
尺棒材をくわえて直線状に引取りつつ、その一対の無限
軌道を当該長尺棒材のまわりに回転させることにより、
上記固定ダイスと一対の無限軌道との間で前記長尺棒材
を捩じって送り出すことを特徴とする捩じれ棒の連続成
形法。1. A pair of infinities which pass a long bar having a polygonal cross section inscribed in a circle through a hole of a fixed die having a polygonal cross section of substantially the same shape, and hold a round bar having a diameter close to the diameter of the circle. By orbit, by taking the long bar coming out of the hole of the fixed die in a straight line, by rotating the pair of endless tracks around the long bar,
A method of continuously forming a torsion bar, wherein the long bar is twisted and fed between the fixed die and a pair of endless tracks.
において、前記多角形断面の長尺棒材は、複数個の成形
ローラの周面を寄せ集めて目的とする捩じれ棒の断面と
同じ多角形断面の棒材通路を形成し、上記多角形断面の
棒材をくわえることができる送りローラにより長尺の金
属丸棒を上記棒材通路から引抜いて所要の多角形断面に
したものであることを特徴とする捩じれ棒の連続成形
法。2. The continuous forming method of a torsion bar according to claim 1, wherein the long bar material having a polygonal cross section is formed by gathering the peripheral surfaces of a plurality of forming rollers together with a desired cross section of the torsion bar. A rod passage having the same polygonal cross section is formed, and a long metal round bar is pulled out from the rod passage by a feed roller capable of holding the rod having the polygonal cross section to a required polygonal cross section. A method for continuously forming a torsion bar, the method comprising:
形断面の長尺棒材の進入路、退出路となる中空回転軸を
設けた回転機枠、この回転機枠内に取付けられ、上記進
入路と退出路との間で前記長尺棒材をくわえて送り出す
一対の無限軌道、上記中空回転軸の外周に遊嵌され、外
力の駆動を受けて、上記一対の無限軌道をそれぞれの伝
動機構を介して同期駆動する中央駆動輪、及び上記中空
回転軸を駆動して上記回転機枠を回す回転機枠の駆動機
構を備え、上記一対の無限軌道の相対向したシューの各
踏面は捩じるべき前記長尺棒材の多角形断面の外接円に
近い断面寸法の丸棒をくわえることができる凹溝を備え
ていることを特徴とする捩じれ棒の捩じり送り装置。3. A rotary machine frame provided with a hollow rotary shaft at the center between a front portion and a rear portion, the hollow rotary shaft serving as an entrance path and an exit path of a long bar having a polygonal cross section to be twisted. A pair of endless tracks that are attached and send out the long bar material in addition between the approach path and the exit path, and are loosely fitted on the outer periphery of the hollow rotary shaft and are driven by an external force to receive the pair of endless tracks. A central drive wheel for synchronously driving through the respective transmission mechanisms, and a rotating machine frame driving mechanism for rotating the rotating machine frame by driving the hollow rotating shaft, and a pair of endless tracks of opposed shoes. Each tread is provided with a groove capable of holding a round bar having a cross-sectional dimension close to a circumscribed circle of the polygonal cross-section of the long bar to be twisted; .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31776294A JP2772929B2 (en) | 1994-11-29 | 1994-11-29 | Continuous forming method of torsion bar and torsion feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31776294A JP2772929B2 (en) | 1994-11-29 | 1994-11-29 | Continuous forming method of torsion bar and torsion feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08155556A JPH08155556A (en) | 1996-06-18 |
| JP2772929B2 true JP2772929B2 (en) | 1998-07-09 |
Family
ID=18091765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31776294A Expired - Fee Related JP2772929B2 (en) | 1994-11-29 | 1994-11-29 | Continuous forming method of torsion bar and torsion feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2772929B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101137309B1 (en) * | 2009-11-16 | 2012-04-20 | 김지용 | Manufacturing apparatus of polygonal twisted steel fiber |
| CN106734447B (en) * | 2016-12-30 | 2019-04-30 | 中国重型机械研究院股份公司 | A kind of detorsion device applied to large torque |
| CN113579026B (en) * | 2021-07-19 | 2023-05-12 | 石家庄艺树金属制品有限公司 | Full-automatic birdcage twisting machine |
-
1994
- 1994-11-29 JP JP31776294A patent/JP2772929B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08155556A (en) | 1996-06-18 |
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