JPS5910921U

JPS5910921U - Pinch roll device in square steel pipe manufacturing equipment

Info

Publication number: JPS5910921U
Application number: JP10394682U
Authority: JP
Inventors: 神谷　藤麿; 治夫佐々木; 高健池永; 三原　一修
Original assignee: 日立造船株式会社
Priority date: 1982-07-08
Filing date: 1982-07-08
Publication date: 1984-01-24

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すもので、第１図は角形鋼
管製造設備の概略工程図、第２図はピンチロール装置の
一部切欠正面図、第３図は同平面図、第４図は第２図の
Ｉ−Ｉ矢視断面図、第５図及び第６図は成形品の断面形
状を示す図、第７図　　　　、はピンチロール装置の他
の実施例の一部切欠正面図である。７・・・成形ロールｉ、ａ、８’・・・ピンチロール装
置、１６・・・移送経路（一定経路）、１８．２８・・
・下ロール、２０・・・上フレーム、２２・・・昇降フ
レーム、２３・・・シリンダ装置、２４，２９・・・上
ロール、２５・・・電動機（回転駆動装置）。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 partially cutaway front view of a pinch roll device, Fig. 3 is a plan view of the same, and Fig. 4 is a schematic process diagram of a square steel pipe manufacturing facility. The figure is a sectional view taken along the line II in FIG. 2, FIGS. 5 and 6 are views showing the cross-sectional shape of the molded product, and FIG. 7 is a partially cutaway front view of another embodiment of the pinch roll device. It is. 7... Forming rolls i, a, 8'... pinch roll device, 16... transfer route (constant route), 18.28...
- Lower roll, 20... Upper frame, 22... Lifting frame, 23... Cylinder device, 24, 29... Upper roll, 25... Electric motor (rotary drive device).

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 along a certain path and pressed into the regular shape of the square steel pipe. This is a pinch roll device installed on the upper side of the above-mentioned square steel pipe press-forming process of a square steel pipe manufacturing facility for manufacturing square steel pipes by forming and welding the butt ends of left and right flanges. a plurality of lower rolls that are arranged in sequence to support the lower surface of the bottom of the molded article; a plurality of upper rollers that are arranged so as to be movable up and down above each of these lower rolls and press the upper surface of the bottom of the molded article; A pinch roll device for a square steel pipe manufacturing facility, comprising a rotation drive device for rotationally driving each of the lower rolls.