JPS6052016U

JPS6052016U - Core roll device in square steel pipe manufacturing equipment

Info

Publication number: JPS6052016U
Application number: JP14375083U
Authority: JP
Inventors: 高健池永; 治夫佐々木
Original assignee: 日立造船株式会社
Priority date: 1983-09-16
Filing date: 1983-09-16
Publication date: 1985-04-12
Also published as: JPH0137772Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図は角形鋼
管製造設備における概略工程図、第２図は中子ロール装
置の一部切欠全体側面図、第３図は第２図のＩ−Ｉ矢視
における一部切欠図、第４図は第２図の■−■矢視断面
図、第５図は第２図の■−■矢視断面図、第６図は溶接
近傍におけるロール配置図で、ａは平面図、ｂは各ロー
ル位置における成形品の断面図である。７・・・成形ロール［１６・・・門型ロールスタンド、
１８・・・シリンダ装置、１９・・・筒状固定フレーム
、２０・・・Ｌ字形アーム、２１・・・立上り部材、２
２・・・水平部材、２４・・・水平偏心ピン、２５・・
・張り出し部、２４・・・中子ロール、Ｃ・・・成形品
。The drawings show one embodiment of the present invention; Fig. 1 is a schematic process diagram of square steel pipe manufacturing equipment, Fig. 2 is a side view of the entire core roll device with some notches cut away, and Fig. 3 is a diagram of the process shown in Fig. 2. A partially cutaway view taken along the I-I arrow, FIG. 4 is a sectional view taken along the ■-■ arrow in FIG. 2, FIG. 5 is a sectional view taken along the ■-■ arrow in FIG. In the roll arrangement diagram, a is a plan view, and b is a cross-sectional view of the molded product at each roll position. 7... Forming roll [16... Gate-shaped roll stand,
18... Cylinder device, 19... Cylindrical fixed frame, 20... L-shaped arm, 21... Standing member, 2
2...Horizontal member, 24...Horizontal eccentric pin, 25...
- Overhanging part, 24... Core roll, C... Molded product.

Claims

[Scope of utility model registration request]

A steel plate is bent at positions corresponding to the four corners of a square steel pipe using a press to form a molded product with a shape approximating the square steel pipe, and then this molded product is transferred and press-formed into the regular shape of a square steel pipe using a forming roll machine. This device is installed at the rear of the forming roll machine in the molded product transfer direction of the square steel pipe manufacturing equipment for manufacturing square steel pipes by welding the butt ends of the right and left flanges, and is composed of an upright member and a horizontal member. The upper end of the upright member of the L'-shaped arm is rotatable via a horizontal eccentric pin in a direction perpendicular to the molded product transfer direction on a fixed frame provided above the molded product transfer path. In order to rotate this L-shaped arm around the horizontal eccentric pin, a suitable part of the arm near the horizontal eccentric pin is connected to a cylinder device provided above the molded product transfer path, and as seen from the side, Rectangular steel pipe manufacturing equipment, characterized in that a core roll capable of pressing from inside the left and right flange abutting ends of the molded product at the upper roll position of the forming roll machine is attached to the tip of the horizontal member of the L-shaped arm. Core roll device.