JPS58192627A - Method and apparatus for shear-forming plate in case of manufacturing electric welded tube - Google Patents

Method and apparatus for shear-forming plate in case of manufacturing electric welded tube

Info

Publication number
JPS58192627A
JPS58192627A JP7632982A JP7632982A JPS58192627A JP S58192627 A JPS58192627 A JP S58192627A JP 7632982 A JP7632982 A JP 7632982A JP 7632982 A JP7632982 A JP 7632982A JP S58192627 A JPS58192627 A JP S58192627A
Authority
JP
Japan
Prior art keywords
steel plate
welded tube
electric welded
edge
shape
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.)
Pending
Application number
JP7632982A
Other languages
Japanese (ja)
Inventor
Heiji Kato
平二 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP7632982A priority Critical patent/JPS58192627A/en
Publication of JPS58192627A publication Critical patent/JPS58192627A/en
Pending legal-status Critical Current

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
    • B23D19/00—Shearing machines or shearing devices cutting by rotary discs
    • B23D19/08—Shearing machines or shearing devices cutting by rotary discs for special use, e.g. for cutting curves, for chamfering edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To manufacture an electric welded tube having a good quality, by using a trimmer edge and a forming roll, which have a specified structure, when shearing a thick steel plate for the electric welded tube. CONSTITUTION:When manufacturing an electric welded tube by use of a dead thick steel plate or a high tensile strength steel plate, in case of trimming an edge end part of the steel plate or slitting the steel plate to several strips, the edge end part of the steel plate is shear-formed so that a necessary radius of curvature is obtained, by which failure of a shape and a quality of the electric welded tube being a finished product is prevented. Therefore, when shearing the edge end part of a steel plate S, a gap between a trimmer upper edge 1 and a trimmer lower edge 2 is controlled to match the plate thickness. The upper edge 1 is formed in a projecting shape, the outside circumference of a forming roll 3 is formed in a recessed shape, and the edge end part of the steel plate S is bend- formed to a necessary radius of curvature to match the shape of the upper edge 1 and the forming roll. Accordingly, an electric welded tube manufactured by use of this steel plate is excellent in both of its shape and quality.

Description

【発明の詳細な説明】 うにした電縫菅製造における板の剪断成形法及びその装
置に関する。　　　　　　　　　　　・へ極厚板や高抗
張力ｉＦ１；ｍの曲は成形でには、板のエツジ端部がう
１く曲らなかったり、或は端部にだれが生じる。又成形
時のロール面圧により、板のエツジ端部に傷が入る。従
って斯かる板から電縫管を製造すると、形状不良の製品
や品質の悪い製品ができ、好１しくない。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shear forming method of a plate in manufacturing an electric resistance welded tube and an apparatus therefor. - When forming extremely thick plates or bends with high tensile strength iF1;m, the edges of the plates may not be bent further, or sagging may occur at the edges. Also, the edge edges of the plate are damaged due to the roll surface pressure during forming. Therefore, if an electric resistance welded pipe is manufactured from such a board, a product with a defective shape or poor quality will be produced, which is not desirable.

本発明は、板のエツジ端部をトリピンクする際、又は板
を数条にスリッティングする際に板のエツジ端部を所要
の曲率半径になるよう剪断成形し、良好な品質の電縫管
を得ることを目的としてなしたものである、 以下、本発明の実施例を肉面を参照しつつ説明する。The present invention enables the edge ends of a board to be shear-formed to a required radius of curvature when tripinking or slitting the board into several strips, thereby producing a high-quality ERW tube. Hereinafter, embodiments of the present invention will be described with reference to the meat side.

第１因は本発明の一実施例で、図中（１）はトリマー上
刃、（２）はトリマー下刃、（３）はト・リセー下刃（
２）に一体的に固着された成形ロールであり、トリマー
上刃（１）外周は太鼓状をし、成形ロール（３）外周は
鼓状全している。The first factor is an embodiment of the present invention, in which (1) is the upper trimmer blade, (2) is the lower trimmer blade, and (3) is the lower trimmer blade (
The trimmer upper blade (1) has a drum-shaped outer periphery, and the forming roll (3) has a drum-shaped outer periphery.

板（Ｓ）のエツジ端部を剪断する際には、トリマー上刃
（１）とトリマー下刃（２）との間の間隙を板厚に合わ
せて調節し、トリマー上刃（１１とトリマー下刃（２）
とによって板（Ｓ）のエッジ端部ヲトリミングする。ト
リマー上刃（１）は凸形状をし、成形ローラ（３）は凹
形状ケしているため、トリミングの際、板（Ｓ）のエツ
ジ端部はトリマー上刃（１）と成形ローラ（３）の形状
に合わせて所要の曲率半径に曲げ成形される。従って、
成形されて製造された電縫管の形状及び品質は良好にな
る。When shearing the edge end of the plate (S), adjust the gap between the trimmer upper blade (1) and the trimmer lower blade (2) according to the plate thickness, and then Blade (2)
Trim the edge of the plate (S) by. Since the trimmer upper blade (1) has a convex shape and the forming roller (3) has a concave shape, during trimming, the edge end of the plate (S) is connected to the trimmer upper blade (1) and the forming roller (3). ) is bent to the required radius of curvature. Therefore,
The shape and quality of the molded and manufactured electric resistance welded tube are improved.

第２図は本発明の他の実施例で、図中（４）はスリッタ
ー上刃、（５）ハスリッター下刃、（６）はスリッター
下刃（５）に一体重に固着された成形ロールであり、ト
リマーの場合と同様、スリッター上刃（４）外周は所要
の曲率半径の凸形状をし、成形ロール（６）、外周は所
要の曲率半径の凹形状をしている。Figure 2 shows another embodiment of the present invention, in which (4) is the upper slitter blade, (5) the lower blade of the helical slitter, and (6) is a forming roll that is integrally fixed to the lower slitter blade (5). As in the case of a trimmer, the outer periphery of the slitter upper blade (4) has a convex shape with a required radius of curvature, and the outer periphery of the forming roll (6) has a concave shape with a required radius of curvature.

従って板（Ｓ）　’にスリッター上刃（４）とスリッタ
ー下刃（５）とで分割すれば、分割されたｂ＝のエツジ
４　”＝１５は所要の曲率半径で曲げ成形される。斯か
る実施例の、局舎は、複数枚の板がｌ”Ｊ時に剪断成形
される。Therefore, if the plate (S)' is divided by the upper slitter blade (4) and the lower slitter blade (5), the divided edge 4'' = 15 of b= will be bent with the required radius of curvature. In the embodiment, the station building is formed by shearing a plurality of plates at l''J.

なお、本発明の笑施し１」においては、下刃側にｔｉ　
１１６０−ルを設ける場合について説明したが、上刃側
に設けても実施し得ること、成形ロール側を凸形状にし
て成形ロールに対向する刃を凹形状にしても実施できる
こと、その他、本発明の要旨を逸脱しない範囲内で種々
変更を加え得ること、等は勿論である。In addition, in "Alms 1" of the present invention, there is a ti on the lower blade side.
Although the case where the 1160-rule is provided has been described, it can also be implemented by providing it on the upper blade side, it can also be implemented by having the forming roll side have a convex shape and the blade facing the forming roll having a concave shape, and other aspects of the present invention. Of course, various changes may be made without departing from the spirit of the invention.

本発明の電縫管装造における板の剪断成形法及びその装
置によれば、板のエツジ端部の曲りが不充分だったり、
板のエツジ端部に成形によるだれや傷が付くことがない
ため、形状が良好で品質の良い壇品全得ろことができる
、という優れた効果を要し得る。According to the method and apparatus for shearing a plate in ERW pipe fittings of the present invention, the edge end of the plate may not be sufficiently bent.
Since there is no sagging or damage on the edge of the board due to molding, it is possible to obtain a complete platter with a good shape and high quality, which is an excellent effect.

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

第１図は本発明の一実施例の説明図、第２図は本発明の
他の実施例の説明図である。FIG. 1 is an explanatory diagram of one embodiment of the present invention, and FIG. 2 is an explanatory diagram of another embodiment of the present invention.

Claims (1)

【特許請求の範囲】 １）板の長手方向剪断時に、剪断された板のエツジ端部
に所要の曲げを与えることを待畝とする電縫管食造にお
ける板の剪断成形法。 ２）板の長手方向剪断時の一方の刃と該刃に対問して配
設され他方の刃に軸愉が曾蚊するよう固着された成形ロ
ールとのうち、何れかの外周を凸形状とし、他方の外地
を凹形状にしたことを特巨とする電縫管製造における板
の剪断成形装置。[Scope of Claims] 1) A shear forming method for a plate in electric resistance welded pipe construction, in which the ridges are used to give a required bend to the edge end of the sheared plate when the plate is sheared in the longitudinal direction. 2) When shearing the plate in the longitudinal direction, the outer periphery of either one of the blades and a forming roll disposed in opposition to the blade and fixed to the other blade so that the shaft is tightly closed is formed into a convex shape. An apparatus for shearing and forming plates in the manufacture of electric resistance welded pipes, which is characterized by having a concave outer surface on the other side.
JP7632982A 1982-05-07 1982-05-07 Method and apparatus for shear-forming plate in case of manufacturing electric welded tube Pending JPS58192627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7632982A JPS58192627A (en) 1982-05-07 1982-05-07 Method and apparatus for shear-forming plate in case of manufacturing electric welded tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7632982A JPS58192627A (en) 1982-05-07 1982-05-07 Method and apparatus for shear-forming plate in case of manufacturing electric welded tube

Publications (1)

Publication Number Publication Date
JPS58192627A true JPS58192627A (en) 1983-11-10

Family

ID=13602311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7632982A Pending JPS58192627A (en) 1982-05-07 1982-05-07 Method and apparatus for shear-forming plate in case of manufacturing electric welded tube

Country Status (1)

Country Link
JP (1) JPS58192627A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703017A3 (en) * 1994-09-24 1996-11-13 Alcatel Kabel Ag Method for the production of longitudinally seam welded metal tubes
CN102189149A (en) * 2010-03-08 2011-09-21 湖北三环锻压设备有限公司 Technological method for forming high-strength thick wall steel tube
JP2013132671A (en) * 2011-12-27 2013-07-08 Jfe Steel Corp Method for manufacturing thick-walled electric resistance welded tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703017A3 (en) * 1994-09-24 1996-11-13 Alcatel Kabel Ag Method for the production of longitudinally seam welded metal tubes
CN102189149A (en) * 2010-03-08 2011-09-21 湖北三环锻压设备有限公司 Technological method for forming high-strength thick wall steel tube
JP2013132671A (en) * 2011-12-27 2013-07-08 Jfe Steel Corp Method for manufacturing thick-walled electric resistance welded tube

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