JPS5944121B2 - How to cut a multi-striated metal bar - Google Patents
How to cut a multi-striated metal barInfo
- Publication number
- JPS5944121B2 JPS5944121B2 JP52012586A JP1258677A JPS5944121B2 JP S5944121 B2 JPS5944121 B2 JP S5944121B2 JP 52012586 A JP52012586 A JP 52012586A JP 1258677 A JP1258677 A JP 1258677A JP S5944121 B2 JPS5944121 B2 JP S5944121B2
- Authority
- JP
- Japan
- Prior art keywords
- filaments
- filament
- billet
- separate
- stand
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D23/00—Machines or devices for shearing or cutting profiled stock
- B23D23/02—Machines or devices for shearing or cutting profiled stock otherwise than in a plane perpendicular to the axis of the stock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0815—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】
本発明は、二重または三重線条環を生ずるように圧延さ
れた金属ビレットを切裂く方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of cutting a rolled metal billet to produce double or triple filament rings.
製脱すれば、本発明の方法は、細長い金属環の高速生産
において、くびれ部で並接された二重または三重線条環
を切裂（方法であって、二重または三重に並んだ金属線
条環は各々その断面積を等しく減少させるように圧延さ
れ、その際圧縮加工力は各線条の間が拡がり離れるよう
な横方向引張り力を発生するように加えられるものであ
る。In the high-speed production of elongated metal rings, the method of the present invention is a method for cutting double or triple filament rings that are juxtaposed at the waist. Each filament ring is rolled to equally reduce its cross-sectional area, with compression forces being applied to create a lateral tensile force that causes the filaments to spread apart.
三重線条環の場合は、外側の２本の線条を中央の線条か
ら分離させるように外側の２本の線条が同様に加工され
る。In the case of a triple filament ring, the two outer filaments are similarly processed to separate them from the central filament.
鉄筋その他の細長い金属環の高速生産においては、加熱
されたビレットが一連の圧延ロールの間に通される。In the high speed production of reinforcing bars and other elongated metal rings, a heated billet is passed between a series of rolling rolls.
この方法では、予め定められた速度では成る生産量しか
達成し得ない。With this method, it is only possible to achieve a production volume at a predetermined rate.
所定の送り出し速度で生産高を増すために、ビレットを
圧延して連続したくびれ部で並接している二重線条を形
成し、ついでこの線条のくびれ部を固定ナイフのエツジ
上に縦に通して切裂く技術が開発された。To increase output at a given feed rate, the billet is rolled to form a double filament that abuts each other at successive waists, and then the waist of the filament is rolled lengthwise onto the edge of a fixed knife. A technique has been developed to cut through.
同じ技術は三重線条環を形成して切裂くのにも応用し得
る。The same technique can be applied to form and cut triple filament rings.
しかし、かようなナイフは非常に摩耗するので、頻繁に
取替えなければならず、保守費用と生産時間の損失との
原因となる。However, such knives are highly abrasive and must be replaced frequently, resulting in maintenance costs and lost production time.
本発明の目的は、ナイフの代りに圧延ロールを使用して
二重または三重線条金属棒を縦に切裂く改良方法を提供
することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved method for longitudinally cutting double or triple filament metal bars using rolling rolls instead of knives.
本質的に本発明は、ビレットに圧縮加工力を加える連続
したミルスタンドの対設ロール間にビレットを通すこと
によりビレットから細長い金属棒を生産することを存す
るもので、連続したくびれ部で隣りの線条に連結されて
いる３本以下の多重線条を縦に切裂く方法から成り立つ
。Essentially, the invention consists in producing elongated metal rods from billets by passing the billets between opposite rolls of successive mill stands that apply compaction forces to the billets, so that each constriction between the adjacent It consists of a method of longitudinally cutting three or less multiple filaments connected to each other.
この方法は前記多重線条を少なくとも１個のミルスタン
ドの対設ロールに通して各線条の横断面積を等しい割合
だけ減少させ、前記少（とも１個のミルスタンド内の前
記線条に、各線条が前記等しい横断面積減少を生ずるよ
うに、そして同時に各連結くびれ部に横方向引張り力を
生ずるように圧縮加工力を加えることによって、前記（
びれ部の各々を破断させるとともに、前記横方向引張り
力の発生と実質的に同時に前記線条のうち外側にあるも
のの重心を横方向外側に移動させ、これにより隣接する
線条と線上を分離させることから成るものである。This method involves passing the multiple filaments through opposing rolls of at least one mill stand to reduce the cross-sectional area of each filament by an equal proportion; Said (
breaking each of the fins and moving the center of gravity of the outer part of the filament laterally to the outside substantially simultaneously with the generation of the lateral tensile force, thereby separating the adjacent filament from the filament; It consists of things.
次に図面を参照しつつ本発明の実施例につき説明する。Next, embodiments of the present invention will be described with reference to the drawings.
第１図に示す如（金属ビレットは、まずこれを二重線条
環に縮小し、ついで二重線条環を２本の別々の線条に切
裂く対設ロール群を各々有している一連のミルスタンド
に通される、さらに別のスタンドの対設ロールが２本に
分離した線条を所望断面寸法の棒に圧縮する。As shown in FIG. Opposing rolls in a further stand, which pass through a series of mill stands, compress the two separated filaments into bars of the desired cross-sectional dimensions.
第１スタンドへの最初の対設ロール１２０間を通るビレ
ット１０はその断面積を縮小されると同時に正方形断面
形状にされる。The billet 10 passing between the first opposite rolls 120 to the first stand has its cross-sectional area reduced and at the same time has a square cross-sectional shape.
スタンドＡを離れた後、ビレット１０は第２スタンドＢ
で第２対設ロール１４間に通され、各ロール１４は中央
につば部１５を有しているから、ビレットはさらに圧縮
されて、（びれ部２０で横に接続されている一対の平行
な線条１８゜１８から成る二重線条環１６に再成形され
る。After leaving stand A, billet 10 moves to the second stand B.
Since each roll 14 has a flange 15 in the center, the billet is further compressed (a pair of parallel parallel rolls 14 laterally connected by a fin 20). It is reshaped into a double filament ring 16 consisting of filaments 18°18.
スタンドＢのロール１４から、二重線条となった俸１６
は第三スタンドＣの中の第３対設ロール２２２２０間に
通され、各ロール２２は中央につば部２３を有する。From roll 14 of stand B, double-stripe salary 16
is passed between the third opposing rolls 22220 in the third stand C, each roll 22 having a collar 23 in the center.
このロールは俸１６の横断面積をさらに減少させるもの
で、線条１８の各々の横断面積は等しい割合だけ減少さ
れる。This roll further reduces the cross-sectional area of the bale 16, so that the cross-sectional area of each filament 18 is reduced by an equal proportion.
ロール２２と２２の間の通路はスタンドＢからスタンド
Ｃに入ってくる線条環１６より深さは浅いし、幅は太き
いから、線条は平たくされて幅が広がり、第１図スタン
ドＣに示す線条１８を生じさせる。The passage between the rolls 22 and 22 is shallower in depth and wider than the filament ring 16 entering stand C from stand B, so the filament is flattened and widened, resulting in stand C in Figure 1. This produces striations 18 shown in FIG.
この時２本の線条のそれぞれの重心は互いに離れる方向
へ移動される。At this time, the centers of gravity of the two filaments are moved away from each other.
第２図において、輪郭Ｘは第１図のスタンドＢを過ぎた
後スタンドＣに入る時の二重線条環の断面形状を表わし
、輪廓Ｙは同じ線条がスタンドＣのロール中心線に達し
た時の断面形状を表わしている。In Figure 2, contour X represents the cross-sectional shape of the double filament ring when it enters stand C after passing stand B in Figure 1, and contour Y represents the cross-sectional shape of the double filament ring when the same filament reaches the roll center line of stand C. It shows the cross-sectional shape when
かような加工により、輪廓ＸにおけるＣＧ１で表わされ
る各線条１８の重心は、輪廓Ｙにおける位置ＣＧ２へ変
移される。By such processing, the center of gravity of each filament 18 represented by CG1 in the circumference X is shifted to the position CG2 in the circumference Y.
このようにすると、くびれ部２０に近い線条１８の材料
は、各線条の外線縁に近い材料より引き伸ばされる。In this way, the material of the filaments 18 closer to the constriction 20 is stretched more than the material closer to the outer edge of each filament.
このくびれ部２０に近い側のより太きい伸びは、両線条
１８を離間させようとして、くびれ部に横方向引張り力
を生成させる。This thicker stretch on the side closer to the constriction 20 tends to separate the filaments 18 and generates a lateral tensile force in the constriction.
くびれ部におけるこれらの力は破断を起こさせ、従って
両線条を分離させることになる。These forces at the waist will cause a break and thus separate the filaments.
ロール２２を離れた後、図示の実施例の線条１８は、一
対の対設圧縮ロール２４をもつスタンドＤを別々に通り
、さらに一対の対設圧縮ロール２６をもつスタンドＥを
別々に通って、仕上げられた俸２８となる。After leaving the rolls 22, the filaments 18 in the illustrated embodiment pass separately through stand D, which has a pair of opposed compression rolls 24, and separately through stand E, which has a pair of opposed compression rolls 26. , resulting in a finished salary of 28.
スタンドＡからＥは圧延機におけるすべてのスタンドで
はなく、例えば粗延スタンドをスタンドＡに前置しても
よい。Stands A to E are not all stands in the rolling mill; for example, a rough rolling stand may be placed in front of stand A.
また最終製品の断面形状は所望のどのような断面形状で
もよいことは理解されよう。It will also be appreciated that the final product may have any desired cross-sectional shape.
三重線条件から別々の線条を製造するには、上述実施例
と同様な手順を追うか、違うのは真中の線条が対称的な
加工を受けるのに対し、外側の２本の線条が前述と同様
に非対称的に加工され、各外側線条の真中の線条に近い
内側部分がその外側部分より大きい圧縮力で加工される
ことである。To manufacture separate filaments from the triple filament condition, you can either follow the same procedure as in the above example, or the difference is that the middle filament undergoes symmetrical processing, while the outer two filaments undergo symmetrical processing. is processed asymmetrically in the same way as described above, and the inner part of each outer filament near the middle filament is processed with a larger compressive force than its outer part.
この非対称的加工により２本の外側線条は真中の線条か
ら別れようとして、それぞれの（ひれ部で分離する。Due to this asymmetric processing, the two outer filaments try to separate from the middle filament and separate at their respective fins.
ロール１４のつば部１５、ロール２２のつハ部２３は楔
形状に設けることが好適であると認められた。It has been found that it is suitable to provide the collar portion 15 of the roll 14 and the collar portion 23 of the roll 22 in a wedge shape.
つば部１５の各々の開き角は約９０°とし頂点は約１／
８インチ（約３．２ｍｍ）の曲率で丸くし、両つハ部間
の隙間はロールフェース間の幅の約１／２とすることが
好適である。The opening angle of each of the brim portions 15 is approximately 90°, and the apex is approximately 1/
It is preferable that the roll be rounded with a curvature of 8 inches (approximately 3.2 mm), and that the gap between the two halves be approximately 1/2 of the width between the roll faces.
つば部２３の各々は約６０°の開き角とし、頂点は１／
３２インチ（約９．８ａｍ ）の曲率で丸くし、両つば
部間の隙間は約０．０２インチ（約０．５ ｍｍ ）と
することが好適である。Each of the brim portions 23 has an opening angle of about 60°, and the apex is 1/
Preferably, it is rounded with a curvature of 32 inches (approximately 9.8 am), with a gap of approximately 0.02 inch (approximately 0.5 mm) between the flanges.
両つば部２３を互いに接触させて操業することは不可能
であり、厚さ約０．０２インチ（約Ｑ、 ５ ｍｍ ）
のくびれ部２０があって、線条１８を分離させるにはこ
れを切裂かなければならないことが認められよう。It is impossible to operate with both collars 23 in contact with each other, and the thickness is approximately 0.02 inches (approximately Q, 5 mm).
It will be appreciated that there is a constriction 20 which must be cut to separate the filaments 18.
もちろん棒の移動速度、化学的組成および棒の温度など
が、上述の棒の移動通路の形状に加えて線条の分離に影
響を与える。Of course, the speed of rod movement, chemical composition, and temperature of the rod, in addition to the shape of the path of rod movement described above, will affect the separation of the filaments.
特に、不当に遅い移動速度は本発明の作用を妨げるもの
である。In particular, unduly slow travel speeds impede the operation of the present invention.
多くの場合、すべての線条が同じ断面積と形状をもつこ
とが好ましい。In many cases, it is preferred that all filaments have the same cross-sectional area and shape.
しかしこれは本発明にとって本質的なことではなく、ス
タンドＣ（切裂きスタンド）における圧縮比がすべての
線条について実質上等しければよいのである。However, this is not essential to the present invention, as long as the compression ratio in stand C (tearing stand) is substantially equal for all filaments.
三重線条になった金属棒な切裂く際には、一つのビレッ
トから形状または寸法の異なるものを生産することは、
外側の２本の線条が同一であって、真中の線条だけが異
なるものであれば、容易である。When cutting a triple-striated metal bar, it is difficult to produce pieces with different shapes or dimensions from one billet.
This is easy if the two outer filaments are the same and only the middle filament is different.
本発明は３本以下の線条から成る多重線条俸の分離に適
用される。The present invention is applied to the separation of multiple filaments consisting of three or less filaments.
しかし、本発明は単一圧延ラインにおいて１回以上適用
され得るものである。However, the invention can be applied more than once in a single rolling line.
例えば、ロール２４内の通路をロール１４内の通路と同
じ断面形状にし、ロール２６内の通路形状をロール２２
の形状と同じにすることができる。For example, the passage in the roll 24 has the same cross-sectional shape as the passage in the roll 14, and the passage in the roll 26 has the same cross-sectional shape as the passage in the roll 22.
can be made to have the same shape as .
この例の後続ロールは各々４本の通路をもつことになろ
う。Subsequent rolls in this example would each have four passes.
この段階式原理を適用することにより本発明は単一ビレ
ットから６本または９本の線条を生産するのにも使用す
ることができる。By applying this stepwise principle, the invention can also be used to produce 6 or 9 filaments from a single billet.
第１図は本発明の方法の工程順の−ｆｌｌを示す図であ
って、異なる断面形状の溝をもつ数対のロールによって
ビレットを二重線条環に圧縮し、線条を縦に切裂き捷た
は分離させ、分離した線条を成形する工程を示し、第２
図は二重線条環が第１図の３番目の工程に入った時（Ｘ
）、およびその工程のロールの中心線に達した時（Ｙ）
の断面形状を示す線図である。
１０・・・・・・ビレット、１２・・・・・・ロール、
１４・・・・・・ロール、１５・・・・・・つば部、１
６・・・・・・二重線条環、１８・・・・・・線条、２
０・・・・・べびれ部、２２・・・・・・ロール、２３
・・・・・・つば部、２４・・・・・・ロール、２６・
・・・・・ロール、２８・・・・・・最終製品。FIG. 1 is a diagram showing the process sequence -fll of the method of the present invention, in which a billet is compressed into a double filament ring by several pairs of rolls having grooves of different cross-sectional shapes, and the filaments are cut longitudinally. It shows the process of tearing or separating and forming the separated filaments, and the second
The figure shows when the double filament ring enters the third step in Figure 1 (X
), and when the center line of the roll for that process is reached (Y)
FIG. 10...Billet, 12...Roll,
14...Roll, 15...Brim part, 1
6...Double filament ring, 18...Striae, 2
0...Flash part, 22...Roll, 23
...Brim portion, 24...Roll, 26.
...Roll, 28...Final product.
Claims (1)
通すことによりこのビレットに圧縮加工力を作用させて
ビレットから細長い金属環を生産することにおいて、 ３本より多くない多重線条が線条本体より厚みの小さい
連続したくびれ部において隣接線条と連結されているよ
うな多重線条を切断作用を用いずに縦に引裂きする方法
であって、 前記多重線条を少くとも１個のミルスタンドの対設ロー
ル間に通し、 前記少くとも１個のミルスタンド内にある多重線条の各
々に圧縮加工力を加えて、各線条に等−しい断面積減少
を生じさせると共に、各線条をつないでいるくびれ部に
横方向に働く引張り力を生じさせ、これと実質的に同時
に前記多重線条のうち外側にあるものの重心を横方向外
方へ移動させることにより前記くびれ部を破断させ、か
くして隣合った線条を切断作用によらずして分離させる
ことから成る多重線条金属棒の引き裂き方法。 ２ 分離された線条の各々をさらにビレットとして加工
してさらに別の３本より多くない多重線条環を生成させ
、この別の線条俸の各々を加工して段階的に少くとも２
本の別の分離された線条を生じさせることから成る特許
請求の範囲第１項記載の方法。[Scope of Claims] 1. In producing an elongated metal ring from a billet by passing the nibilet between opposing rolls of a continuous mill stand and applying a compressive working force to the billet, A method of longitudinally tearing multiple filaments in which the filaments are connected to adjacent filaments at continuous constrictions having a thickness smaller than the filament main body without using a cutting action, the method comprising: tearing the multiple filaments longitudinally without using a cutting action; passing between opposing rolls of the at least one mill stand and applying a compression force to each of the multiple filaments in the at least one mill stand to cause an equal cross-sectional area reduction in each filament; By generating a tensile force acting laterally on the constriction connecting each filament, and substantially simultaneously moving the center of gravity of the outer one of the multiple filaments laterally outward, the constriction is A method for tearing a multi-filament metal bar, comprising breaking it and thus separating adjacent threads without a cutting action. 2. Each of the separated filaments is further processed into a billet to produce a further not more than three multi-filament rings, and each of the separate filaments is processed in stages to form at least two
2. A method as claimed in claim 1, comprising producing separate separate striations of books.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65617876A | 1976-02-09 | 1976-02-09 | |
| US000000656178 | 1976-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52116762A JPS52116762A (en) | 1977-09-30 |
| JPS5944121B2 true JPS5944121B2 (en) | 1984-10-26 |
Family
ID=24631971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52012586A Expired JPS5944121B2 (en) | 1976-02-09 | 1977-02-09 | How to cut a multi-striated metal bar |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5944121B2 (en) |
| BR (1) | BR7700724A (en) |
| CA (1) | CA1054404A (en) |
| DE (1) | DE2705397C2 (en) |
| ES (1) | ES455743A1 (en) |
| FR (1) | FR2340148A1 (en) |
| GB (1) | GB1569196A (en) |
| MX (1) | MX145557A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT7819854A0 (en) * | 1977-02-04 | 1978-01-31 | Do U R S S Do Politekhn Itsni | PROCEDURE FOR THE MANUFACTURE OF PROFILES. |
| US4268948A (en) * | 1978-02-28 | 1981-05-26 | British Steel Corp. | Parting device |
| JPS5913501A (en) * | 1982-07-13 | 1984-01-24 | Toshin Seikou Kk | Method and device for slit rolling of angle iron |
| DE4333303A1 (en) * | 1993-09-30 | 1995-04-06 | Schloemann Siemag Ag | Method and device for producing pre-profiles |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE504328A (en) * | ||||
| US885508A (en) * | 1907-05-24 | 1908-04-21 | Willis Mckee | Rolling. |
| US1977285A (en) * | 1933-03-01 | 1934-10-16 | Robert S Mcclcery | Method of rolling metal sections in multiple |
| US2053375A (en) * | 1933-06-03 | 1936-09-08 | American Fork & Hoe Co | Bar making process |
| GB472002A (en) * | 1936-07-01 | 1937-09-15 | Cargo Fleet Iron Company Ltd | Improvements in or relating to the production of rolled steel billets or sections |
-
1977
- 1977-01-27 CA CA270,603A patent/CA1054404A/en not_active Expired
- 1977-02-07 BR BR7700724A patent/BR7700724A/en unknown
- 1977-02-08 FR FR7703474A patent/FR2340148A1/en active Granted
- 1977-02-08 MX MX16796777A patent/MX145557A/en unknown
- 1977-02-08 ES ES455743A patent/ES455743A1/en not_active Expired
- 1977-02-08 GB GB510977A patent/GB1569196A/en not_active Expired
- 1977-02-09 DE DE19772705397 patent/DE2705397C2/en not_active Expired
- 1977-02-09 JP JP52012586A patent/JPS5944121B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2340148A1 (en) | 1977-09-02 |
| FR2340148B1 (en) | 1982-06-11 |
| DE2705397C2 (en) | 1982-12-02 |
| JPS52116762A (en) | 1977-09-30 |
| GB1569196A (en) | 1980-06-11 |
| CA1054404A (en) | 1979-05-15 |
| ES455743A1 (en) | 1978-05-01 |
| MX145557A (en) | 1982-03-08 |
| BR7700724A (en) | 1977-10-11 |
| DE2705397A1 (en) | 1977-08-18 |
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