JPH0256972B2 - - Google Patents
Info
- Publication number
- JPH0256972B2 JPH0256972B2 JP58056997A JP5699783A JPH0256972B2 JP H0256972 B2 JPH0256972 B2 JP H0256972B2 JP 58056997 A JP58056997 A JP 58056997A JP 5699783 A JP5699783 A JP 5699783A JP H0256972 B2 JPH0256972 B2 JP H0256972B2
- Authority
- JP
- Japan
- Prior art keywords
- straightening
- rolls
- chevron
- roll
- shaped
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】
本発明は、多種にわたる不等辺不等厚の山形鋼
を最少限のロール保有数で矯正する方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for straightening various types of angle steel having scalene sides and uneven thickness using a minimum number of rolls.
山形鋼は、中央山形部の両側に長短の辺を形成
した断面形状の鋼材である。その中央山部の角度
はほぼ90゜の一定角度になされるが、山部の両側
に形成される長辺、短辺の寸法は仕様によつてま
ちまちであり、また、その辺の肉厚もまちまちで
ある。これらの山形鋼をオンラインでローラ矯正
を行う場合には、その山形鋼に見合つたロール・
ギヤツプを形成しうる谷形と山形とをもつた１対
の矯正ロール複数組を千鳥位置に配置し、その間
に被矯正材料を通過させつつ繰返しの曲げを与え
て歪を取り除いて形状矯正をするようにしてい
る。 Angle steel is a steel material with a cross-sectional shape in which long and short sides are formed on both sides of a central angle section. The angle of the central peak is approximately 90°, but the dimensions of the long and short sides formed on both sides of the peak vary depending on the specifications, and the thickness of the sides also varies. It varies. When performing online roller straightening of these angle irons, use a roll or roller that is suitable for the angle iron.
A plurality of pairs of straightening rolls each having a valley shape and a chevron shape capable of forming a gap are arranged in a staggered position, and the material to be straightened is passed between them and repeatedly bent to remove distortion and correct the shape. That's what I do.
しかしながら、山形鋼は、第１図に示すよう
に、その仕様に応じて各部の寸法も多様であるた
め、矯正用のロールもそれぞれの山形鋼の寸法や
形状に適合しうるものが必要となる。したがつ
て、従来は製品の寸法ごとに専用の矯正ロールを
備えていたためロールの保有数が多くなり、管理
の手間や保管スペースを多く必要とする実状にあ
つた。 However, as shown in Figure 1, the dimensions of each part of angle iron vary depending on its specifications, so the straightening roll also needs to be compatible with the dimensions and shape of each angle iron. . Therefore, in the past, dedicated straightening rolls were provided for each dimension of the product, resulting in a large number of rolls being held, resulting in the actual situation requiring a large amount of management effort and storage space.
本発明の目的は、これら従来法における種々の
不都合に対処することであり、必要最小限の数の
ロール保有数によつて多様の寸法を有する不等辺
不等厚山形鋼を矯正する方法を提供することにあ
る。 The purpose of the present invention is to deal with the various disadvantages of these conventional methods, and to provide a method for straightening scalene angle sections having various dimensions using the minimum number of rolls required. It's about doing.
本発明の不等辺不等厚山形鋼の矯正方法は、
谷形の矯正面を有する矯正ロールと山形の矯正
面を有する矯正ロールとを上下に組合せて形成さ
れる孔型に被矯正材料を通して圧下矯正する方法
において、形状がほぼ同じで寸法の異なる山形ロ
ールを少なくとも３種類準備すること、前記山形
ロールのうちから２種類の山形ロールで前記谷形
の矯正面を形成すること、別の１種類の山形ロー
ルによつて前記山形の矯正面を形成すること、前
記山形ロールをいずれの位置にも置換できるよう
に該山形ロールの形状および寸法を選定すること
からなつている。 The method for straightening a scalene angle shape steel of the present invention includes passing the material to be straightened through a hole formed by vertically combining a straightening roll having a valley-shaped straightening surface and a straightening roll having a chevron-shaped straightening surface, and rolling it down. In the straightening method, at least three types of chevron rolls having substantially the same shape but different dimensions are prepared, the valley-shaped straightening surface is formed by two types of chevron rolls from among the chevron rolls, and another type of chevron rolls are formed. The method comprises forming the correcting surface of the chevron with a chevron roll, and selecting the shape and dimensions of the chevron roll so that the chevron roll can be replaced at any position.
次に、本発明の構成を第２図によつて具体的に
説明する。第２図に示すロール群は、任意の辺長
と任意の肉厚の山形鋼５に対応させるために組合
せた３個１組のロール群であつて、３個のロール
のうちから２個のロールを組合せて谷形の矯正面
を有する上ロールとなし、その谷形の矯正面に対
向する山形の矯正面をもつた残りのロールを下ロ
ールに組合せて、全体として１組の矯正ロールと
して形成したものである。 Next, the configuration of the present invention will be specifically explained with reference to FIG. The roll group shown in FIG. 2 is a set of three rolls that are combined to correspond to the angle iron 5 of any side length and wall thickness, and two of the three rolls are The rolls are combined to form an upper roll having a trough-shaped straightening surface, and the remaining rolls having a chevron-shaped straightening surface opposite to the trough-shaped straightening surface are combined with the lower roll to form a set of straightening rolls as a whole. It was formed.
これら３個のロールは、いずれも山形に突出形
成された部分が組合つて矯正面として使用される
ものであり、それぞれのロールが特定の役割を持
つものではないが、本文説明の上で３個のロール
を区別する必要上、便宜的に山部の各寸法に応じ
て小ロール１、中ロール２、大ロール３とした。
したがつて、これら３個のロールは特に一定の割
合で大中小の寸法規制を伴うものではなく、例え
ば同じ大きさのものが２個含まれていても差支え
ない。 All of these three rolls have protruding chevron-shaped parts that are combined to be used as a straightening surface, and although each roll does not have a specific role, the three rolls are used in the explanation of the main text. Because of the need to distinguish between the rolls, the rolls were designated as small roll 1, medium roll 2, and large roll 3 according to the dimensions of the peaks for convenience.
Therefore, the dimensions of these three rolls are not particularly limited to large, medium, or small in a fixed ratio, and for example, two rolls of the same size may be included.
これらのロールは、いずれも機能的にはまつた
く同じ目的で互換性を持たせることが必要である
ので、そのために第１図に示す符号にもとづいて
次の寸法関係を有することが好ましい。 Since it is necessary for these rolls to be functionally compatible for the same purpose, it is preferable for this purpose to have the following dimensional relationship based on the symbols shown in FIG.
すなわち、山形ロールの山部を直角に形成し、
該山部の曲率半径Ｒ（mm）と被矯正材料の谷部の
曲率半径γ（mm）との関係をγ≦Ｒ≦γ＋５（mm）
にすること、前記山形ロールの山裾部直径Ｄをす
べて同じにすること、前記山部の長辺の傾斜角θ
（度）をすべて同じにしかつ下記の範囲内に設定
する。 That is, the ridges of the angled roll are formed at right angles,
The relationship between the radius of curvature R (mm) of the peak and the radius of curvature γ (mm) of the valley of the material to be straightened is γ≦R≦γ+5 (mm)
The diameter D of the hem of the chevron roll should be the same, and the inclination angle θ of the long side of the chevron should be the same.
(degrees) are all the same and within the range below.
tan-1（l2−t1／l1−t2）−15゜≦θ≦
tan-1（l2−t1／l1−t2）−20゜
ただし、
l1：山部長辺長さ
t1：山部長辺厚み
l2：山部短辺長さ
t2：山部短辺厚み
上述の条件に則つた一実施例として小ロール１
のR1＝14mmとし、中ロール２のR2＝19mmとし、
大ロール３のR3＝24mmとして第２図のように組
合せたところ、Ａ図の組合せにおいては200×90
mm材に適用でき、Ｂ図の組合せの場合は250×90
mm材と300×90mm材とに適用でき、Ｃ図の組合せ
の場合は350×100mm材と400×100mm材とに適用で
きた。したがつて、５種類の山形鋼の矯正にさい
して、従来は５組10種類の矯正ロールが必要であ
つたが、本発明法によれば３種類のロールで矯正
することができた。tan -1 (l 2 −t 1 /l 1 −t 2 )−15゜≦θ≦ tan -1 (l 2 −t 1 /l 1 −t 2 )−20゜where, l 1 : Length of the crest side t 1 : Thickness of the side of the crest l 2 : Length of the short side of the crest t 2 : Thickness of the short side of the crest Small roll 1 is an example based on the above conditions.
R 1 = 14 mm, R 2 of middle roll 2 = 19 mm,
When the large roll 3 is combined as shown in Figure 2 with R 3 = 24mm, the combination shown in Figure A is 200 x 90.
Applicable to mm materials, 250 x 90 for the combination shown in Figure B
It can be applied to 300 x 90 mm materials, and in the case of the combination shown in Figure C, it can be applied to 350 x 100 mm materials and 400 x 100 mm materials. Therefore, when straightening five types of angle iron, conventionally five sets of ten types of straightening rolls were required, but according to the method of the present invention, straightening can be performed using three types of rolls.
第３図は本発明法に係るロールの取付け形態を
示すものである。下ロール装着には公知の手段を
用いて何ら不都合はなく、また上ロールの装着に
は密接させた２個のロールの両側へ、スペース調
整用のカラー４を介在させることによつて単体の
ロールとまつたく同様の状態に装着して矯正部を
形成することができる。 FIG. 3 shows the manner in which the rolls are attached according to the method of the present invention. There is no problem in attaching the lower roll using known means, and in attaching the upper roll, space adjustment collars 4 are interposed on both sides of the two rolls that are placed in close contact with each other, so that a single roll can be attached. It is possible to form a correction part by attaching it in a similar manner.
このように、本発明の方法によれば、少なくと
も３種類の山形ロールに互換性をもたせて種々に
組合せて多種寸法の矯正部を形成することができ
る。このため、JISサイズすなわち５シリーズ７
サイズの不等辺不等厚山形鋼全部矯正するに当つ
て従来は10種、45本の矯正ロールを必要したのに
対し、本発明法においては３種15本の矯正ロール
ですべてに対応させることができ、ロール保有数
を従来法の1/3に節減させることができた。 As described above, according to the method of the present invention, correction portions of various sizes can be formed by combining at least three types of chevron rolls in various ways with compatibility. For this reason, JIS size, that is, 5 series 7
Conventionally, 45 straightening rolls of 10 types were required to straighten all of the scalene sides and uneven thickness angle shapes, but with the method of the present invention, 15 straightening rolls of 3 types are needed. This made it possible to reduce the number of rolls held to 1/3 compared to the conventional method.
第１図は本発明に係るロール構成の形態および
諸条件を説明するための矯正ロール要部の正面
図。第２図は本発明法に係るロールによつて種々
の矯正形態を形成した実施例の正面図。第３図は
本発明法に係るロールの取付け状態を示す断面
図。
１…小ロール、２…中ロール、３…大ロール、
４…カラー、５…山形鋼。
FIG. 1 is a front view of the main parts of a straightening roll for explaining the form and conditions of the roll structure according to the present invention. FIG. 2 is a front view of an embodiment in which various correction forms are formed using rolls according to the method of the present invention. FIG. 3 is a sectional view showing how the roll is installed according to the method of the present invention. 1...Small roll, 2...Medium roll, 3...Large roll,
4...Color, 5...Angle steel.
Claims (1)
正面を有する矯正ロールとを上下に組合せて形成
される孔型に被矯正材料を通して圧下矯正する方
法において、形状がほぼ同じで寸法の異なる山形
ロールを少なくとも３個準備すること、前記山形
ロールのうちから２個の山形ロールで前記谷形の
矯正面を形成すること、別の１個の山形ロールに
よつて前記山形の矯正面を形成すること、前記山
形ロールのいずれの位置にも置換できるように該
山形ロールの山部を直角に形成し、該山部の曲率
半径Ｒ（mm）と被矯正材料の谷部の曲率半径γ
（mm）との関係をγ≦Ｒ≦γ＋５（mm）にするこ
と、前記山形ロールの山裾部ちよつけいＤをすべ
て同じにすること、前記山部の長辺の傾斜角θ
（度）をすべて同じにしかつ下記の範囲内に設定
することを特徴とした不等辺不等厚山形鋼の矯正
方法。 tan-1（l2−t1／l1−t2）−15゜≦θ≦ tan-1（l2−t1／l1−t2）−20゜ ただし、 l1：山部長辺長さ t1：山部長辺厚み l2：山部短辺長さ t2：山部短辺厚み[Scope of Claims] 1. A method of rolling and straightening a material to be straightened through a hole formed by vertically combining a straightening roll having a trough-shaped straightening surface and a straightening roll having a chevron-shaped straightening surface, in which the shape is approximately preparing at least three chevron-shaped rolls that are the same but different in size, forming a correction surface of the valley shape with two of the chevron-shaped rolls, and forming the straightening surface of the valley-shape with another one of the chevron-shaped rolls; The crests of the angled rolls are formed at right angles so that they can be replaced at any position on the angled rolls, and the radius of curvature R (mm) of the ridges and the troughs of the material to be straightened are radius of curvature γ
(mm), the relationship between γ≦R≦γ+5 (mm), the height D of the hem of the chevron roll to be the same, and the inclination angle θ of the long side of the chevron.
A straightening method for scalene angle shape steel, characterized by setting all degrees (degrees) to be the same and within the following range. tan -1 (l 2 −t 1 /l 1 −t 2 )−15゜≦θ≦ tan -1 (l 2 −t 1 /l 1 −t 2 )−20゜where, l 1 : Length of the crest side t 1 : Thickness of the long side of the crest l 2 : Length of the short side of the crest t 2 : Thickness of the short side of the crest
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5699783A JPS59183934A (en) | 1983-04-01 | 1983-04-01 | Setting method of angle steel of unequal side and irregular thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5699783A JPS59183934A (en) | 1983-04-01 | 1983-04-01 | Setting method of angle steel of unequal side and irregular thickness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59183934A JPS59183934A (en) | 1984-10-19 |
| JPH0256972B2 true JPH0256972B2 (en) | 1990-12-03 |
Family
ID=13043124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5699783A Granted JPS59183934A (en) | 1983-04-01 | 1983-04-01 | Setting method of angle steel of unequal side and irregular thickness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0630565U (en) * | 1992-09-25 | 1994-04-22 | キーパー株式会社 | Oil seal with garter spring |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866434B2 (en) * | 2009-02-24 | 2012-02-01 | ヤマトスチール株式会社 | Angle-correcting device for angle-shaped steel and method for manufacturing angle-shaped steel |
| CN106881354A (en) * | 2017-02-22 | 2017-06-23 | 宣化钢铁集团有限责任公司 | A kind of angle steel pre-straightening device |
| CN107717663A (en) * | 2017-10-25 | 2018-02-23 | 石家庄铁能机电设备有限公司 | The blunt machine of polishing |
| CN109175003A (en) * | 2018-08-29 | 2019-01-11 | 鹤山天山金属材料制品有限公司 | A kind of flattening die group |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150273A (en) * | 1974-10-28 | 1976-05-01 | Kubo Ind | ANGURUKYOSEISOCHI |
-
1983
- 1983-04-01 JP JP5699783A patent/JPS59183934A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0630565U (en) * | 1992-09-25 | 1994-04-22 | キーパー株式会社 | Oil seal with garter spring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59183934A (en) | 1984-10-19 |
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