JPS59144516A - Manufacture of odd-shaped wire rod and die for manufacture - Google Patents

Abstract

PURPOSE:To manufacture a deformed wire rod by one pass using relatively simple structure by passing a wire rod having circular sectional form through a drawing die having plural rollers on the contact drawing face and drawing the wire rod. CONSTITUTION:For instance, six steel balls 1a for ball bearing are used as rollers, and the front and rear of the steel balls are held by holding pieces 2, 3. Common through holes 2a, 3a having slightly larger diameter than a wire rod (imaginary wire rod) to be worked are provided in the holding pieces 2, 3. Steel balls 1a are placed to protrude slightly outside of the inner wall of the through holes 2a, 3a. The holding pieces 2, 3 are united in a body by a bolt through a bolt hole 2b, 3b. A round wire rod to be worked is supplied in the die of this structure in the direction of arrow and drawn, and the required reduction of a diameter is made by once rotation forming of steel balls 1a and a deformed wire rod is obtained.

Description

【発明の詳細な説明】 この発明は異形線材即ち断面非円形ことに表面に波付け
した線材、或は溝付けした線材更には間けつ的に凹所を
長手方向に有するような特別な形の線材（管及び棒状体
を含む）の製造方法及びこの構造に用いられるダイスに
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to irregularly shaped wire rods, that is, wire rods with a non-circular cross section, corrugated or grooved wire rods, and wire rods with special shapes that have intermittent recesses in the longitudinal direction. The present invention relates to a method for manufacturing wire rods (including tubes and rod-shaped bodies) and dies used in this structure.

従来との錘異形線材の製造方法は、押出し法或はダイス
による引き抜き法によるものが代表的であるが、押出法
は、先づ押出し用のビレットを鋳造し、加熱して圧力を
かけて押出すもので、複雑な構造の設備を有するととも
に高価となる外、適用される金属材料は軟質から半硬質
のものに限られていた。又、通常のダイスによるもので
はダイス自体を異形線材の断面構造に適応するよう特別
な引き抜き孔の加工を要するとともに１回の減面率には
ダイス加工上の限度があるところから１通常は７ケ〜１
０ケと言う複数のダイスを用意し連続的に引き抜く必要
があることから設備投資自体は押出し法より小さいとは
言え、多数のダイスの製造が面倒である。゛なお適用材
質は半硬質から硬質である。Conventional manufacturing methods for weight-shaped wire rods are typically extrusion or drawing using dies, but in the extrusion method, a billet for extrusion is first cast, heated, and then pressed under pressure. In addition to requiring equipment with a complicated structure and being expensive, the metal materials that could be used were limited to soft to semi-hard materials. In addition, when using a normal die, a special drawing hole must be formed in the die itself to adapt it to the cross-sectional structure of the irregularly shaped wire rod, and the area reduction rate for one time is limited by die processing, so 1 is usually 7. K~1
Although the capital investment itself is smaller than the extrusion method because it is necessary to prepare a plurality of 0 dies and draw them out continuously, it is troublesome to manufacture a large number of dies.゛Applicable materials range from semi-hard to hard.

従来の異形線材の製造方法及び製造用ダイスは上述のよ
うな欠点を有するので１本発明者は種々検討の結果、１
（ロ）のパスで目的とする異形線相を製造する方法並び
に比較的簡単な構造で引き抜き力の小さなダイスを開発
した。これに用いられる線材はｌ／、硬〜硬である。Since the conventional manufacturing method and manufacturing die for irregularly shaped wire rods have the above-mentioned drawbacks, the inventors of the present invention have conducted various studies and have developed the following methods.
We have developed a method for producing the desired irregularly shaped linear phase using the (b) pass, and a die with a relatively simple structure and low drawing force. The wire rod used for this is l/, hard to hard.

次に本発明を図面を参照しつ＼説明する。Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例を示すダイスで、（イ）は（
ロ）のＢ　−Ｂ　（ｌｌｊｌ断面図、（ロ）は（イ）の
Ａ−Ａ正面図である。Figure 1 shows a die showing an embodiment of the present invention, (A) is (
(b) is a sectional view taken along line B-B (lljl) of (b), and (b) is a front view taken along line A-A of (a).

即ち第１図では転圧子にはポールベアリング用例法１丸
を６ケ用い鋼球１ａを前後から挾んで回転自在に支持す
る保持片２，３で保持するようになっている。保持片２
，１〜加工線材（仮想線で示ず）よりや＼大きい径の共
通する貫通孔７ａ、３ａを有しており、６１’４球１改
は前記貫通孔２ａ　、３ａの内壁より僅かに外（１’ｌ
ｌｌの直径（］の円周上りこそれぞれ中心を位１１ヱす
るように配置されている。That is, in FIG. 1, the rolling indenter uses six pole bearings, and the steel ball 1a is held by holding pieces 2 and 3 which sandwich the steel ball 1a from the front and back and support it rotatably. Holding piece 2
, 1 to have common through holes 7a, 3a with a larger diameter than the processed wire (not shown by imaginary lines), and the 61'4 ball 1 modified is slightly outside the inner wall of the through holes 2a, 3a. (1'l
The circumferential uprights with a diameter of 11 are placed so that the center is located about 11 degrees from the center.

なお、保持片２．３には両者を一体に結合するだめのボ
ルト孔２．ｂ、３ｂが設けられている。Note that the holding piece 2.3 has a bolt hole 2.3 for integrally connecting the two. b, 3b are provided.

このような４１°・！造のダイスジζ第１図（イ）の仮
想線に示したような加工素月丸綿を矢印方向に供給し引
き抜くときは、Ｓ’！’を球１との回転成形によって１
回で必−巽とする減径加工ができ、第４図（イ）に示す
ようブ、Ｃ異形線材を得ることができる。なお、加工素
材をＡ線に代えて丸い管体とするときは第４図に）に示
すような異形管体をイ（Ｉることかできる。41° like this! S'! ' by rotational molding with ball 1
The required diameter reduction process can be carried out in one step, and a deformed wire rod as shown in FIG. 4(a) can be obtained. In addition, when the processed material is made into a round tube instead of the A wire, an irregularly shaped tube as shown in Fig. 4 can be used.

第２図、第６図はそれぞれ本発明の他の実施例で第１図
と同一部分には同一符号が示されており、かつ（イ）は
（ロ）のＢ　−’Ｂ側側面面図（ロ）は（イ）のＡ−Ａ
正を４ケ自己設したダイスである。従って口前りｌｂ（
こよって形成される＋１１１″矩形状態の空間がダイス
加工される丸棒又は管体の通過孔で、第２図の矢印の方
向に九朴を引き抜くときは第４図（ロ）に示したようン
２断面矩形状の異形線材を得ることができる。2 and 6 are other embodiments of the present invention, and the same parts as in FIG. (b) is (b) A-A
It is a die that has 4 correct numbers. Therefore, the front of the mouth is lb (
The +111" rectangular space thus formed is the passage hole of the round bar or tubular body to be diced, and when pulling out the nine-piece in the direction of the arrow in Figure 2, it is as shown in Figure 4 (b). A deformed wire rod having a rectangular cross section can be obtained.

Ｕ３６図は、第１図の州法に代えてソロパン珠状の変形
ころ（ＷｉｌｒｄＵ）１０を６ケ用いた一鴨合で、同図
（イ）に示したようにＡ線を矢印方向に引き抜くときは
第４図（ハ）に示したような溝を自する異形線側が得ら
れる。Figure U36 is a single-sided assembly using six Soropan bead-shaped deformed rollers (WilrdU) 10 instead of the state law in Figure 1, and when the A line is pulled out in the direction of the arrow as shown in Figure (A). In this case, a deformed wire side having grooves as shown in FIG. 4(c) is obtained.

本発明では前述のようにダイスの引き抜き加工部分の構
成がころがり軸受（玉軸受、ころ軸受）でなるものであ
るからころがり摩６（でよって、小さな引き抜き力によ
って、大きな引き抜き応力を得られ、１回のダイス引き
ではｙ所定の形状に加工できる）？Ｆ、か、その保守も
容易である。In the present invention, as mentioned above, since the drawing part of the die is composed of rolling bearings (ball bearings, roller bearings), rolling friction 6 (therefore, a large drawing stress can be obtained with a small drawing force, 1 Can it be processed into the specified shape by pulling the dice twice? F, its maintenance is also easy.

又、転圧子の形状等は前記実施例に限られるものではな
く目的とする異形線材の形状に応じて任意に選択するこ
とが可能であり、更にダイスを回転させるか又は線材を
回動させることによりスパイラル状に異形加工をするこ
ともできる。Further, the shape of the rolling indenter is not limited to the above embodiments, and can be arbitrarily selected depending on the shape of the intended irregularly shaped wire, and furthermore, the die may be rotated or the wire may be rotated. It is also possible to process irregular shapes into a spiral shape.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に用いられるダイスの一例で球体ベアリ
ングを用いた場合にして（イ）は（ロ）のＢ−Ｂ線の側
断面図、（ロ）は（イ）のＡ−Ａ線の正面図ｓ’ｉｆ’
：２図は本発明に用いられるダイスの他の実施例で円柱
状ベアリングを用いた場合に（７て印は（ロ）のＢ−Ｂ
線の側断面図、（ロ）は（ｆ）のＡ−Ａ線の、正面図、
第６図は本発明に用いられるダイスの更に他の実施例で
、ソロパン珠状ベアリングを用いた場合にして（イ）は
（ロ）のＢ　−Ｂ　Ｂの側断面図、（ロ）は（イ）のλ
−Ａ線の正面図である。 第′４図は本発明より得られた異形線材の一例を示す断
面図で（イ）、（ロ）及びｅ９はそれぞれ第１図、第２
図及び第６図のダイスを用いて断面円形の線材を引抜き
加工した場合を示す、又、に）は第１図のダイスを用い
て円管を引き抜き加工したコバ合を示す。 １・　核球゛　（毛狂イネ々７リツプ・ｐｈ　　　１円
オプイｍべＹリンク・・ （０ソロバ１ン刊橿ＩだべＩア１）づ１２ｒ３’＋子士
を月 ２ａ７３ら　亦渋しし、 ２Ｆ）、３Ｌ　　すパＩ・ト子し− 代理人　弁理士　竹　内　　　守 第４図 （豹　　　　　　　　　　　　　（Ｘ２〕（ニ） ８１− （）＼）Figure 1 is an example of a die used in the present invention, in which a spherical bearing is used. Front view of s'if'
: Figure 2 shows another example of the die used in the present invention when a cylindrical bearing is used (7 marks are B-B in (B)).
A side sectional view of the line, (b) is a front view of the A-A line of (f),
FIG. 6 shows still another embodiment of the die used in the present invention, in which Solopan bead bearings are used. b) λ
- It is a front view of the A line. Figure '4 is a cross-sectional view showing an example of a deformed wire rod obtained by the present invention, and (a), (b) and e9 are Figures 1 and 2, respectively.
Fig. 6 shows a case in which a wire rod having a circular cross section is drawn using the die shown in Fig. 6, and Fig. 6) shows a case in which a circular pipe is drawn using the die shown in Fig. 1. 1. Nuclear sphere゛ (Crazy rice 7 lip ph 1 yen opp i mbe Y link... (0 soroba 1 n publication 1 dabe I a1) 12r3' + child 2a73 et al. 2F), 3L Spa I Tokoshi Agent Patent Attorney Mamoru Takeuchi Figure 4 (Leopard (X2) (d) 81- ()\)

Claims (1)

【特許請求の範囲】[Claims] （１）断面円形線材を、複数の転圧子を接１！ｌ！Ｉ！
引抜面に内装してなる引抜用ダイス中に挿通せしめて引
き抜くことを特徴とする異形線材の製造方法（２）複数
の転圧子がそれらによって内側に引き抜き用空所を構成
するように均等に配置され、かつ各転圧子が外側の支持
体の凹部に個別に回転し得るよう、に装着されているこ
とを特徴とする異形線材製造用ダイス(1) Connect a wire rod with a circular cross section to multiple rolling indenters! l! I!
A method for manufacturing a deformed wire, characterized in that the wire is inserted into a drawing die provided inside the drawing surface and then pulled out (2) A plurality of rolling indenters are evenly arranged so as to form a drawing space inside. and each rolling indenter is mounted in a recessed part of an outer support so as to be able to rotate individually.