JPS61102315U

JPS61102315U -

Info

Publication number: JPS61102315U
Application number: JP18733584U
Authority: JP
Priority date: 1984-12-12
Filing date: 1984-12-12
Publication date: 1986-06-30

Description

[Brief explanation of the drawing]

第１図はこの考案装置の概略的なロール外観図
、第１図Ａ及び第１図Ｂはこの考案装置の主要部
を示した構成説明図、第２図は従来装置をＡ、本
考案装置をＢとして示した粗成形部の全体的なロ
ール配置図、第３図は従来の成形ロール装置の要
部断面図である。Ｓ……粗成形部、Ｐ……成形素材、１〜４……
複数段の成形ロール対、１２〜１４……フリーロ
ーラガイド、ａ，ｂ……フリーローラガイドの両
側ローラ、２２ａ〜２４ａ……前記ローラ対の下
ロール、２２ｂ〜２４ｂ……同ローラ対の上ロー
ル、ｌ……上ロール幅。 Figure 1 is a schematic roll external view of this invented device, Figures 1A and 1B are configuration explanatory diagrams showing the main parts of this invented device, and Figure 2 shows the conventional device A and the invented device. FIG. 3 is a cross-sectional view of the main part of a conventional forming roll device. S...Rough molded part, P...Molding material, 1 to 4...
Pairs of forming rolls in multiple stages, 12-14...Free roller guide, a, b...Rollers on both sides of the free roller guide, 22a-24a...Lower roll of the pair of rollers, 22b-24b...Upper of the pair of rollers Roll, l...Top roll width.

Claims

[Scope of utility model registration request]

Forming of a rough forming section in an electric resistance welded tube forming apparatus equipped with multiple pairs of forming rolls that sequentially curve form a forming material in a rough forming section, and a free roller guide arranged between each pair of step forming rolls. In a roll device, the lower roll of a plurality of pairs of forming rolls that is rotationally driven has a concave outer periphery having a roll width that is approximately the same as the roll width of the upper roll perpendicular to the lower roll and that allows the backing portion of the forming material to protrude to both sides. It is characterized in that it is formed into a curved short roll shape, and the rollers on both sides of each free roller guide located at the front stage in the forming direction of each step forming roll pair are formed into a roller shape that holds the buckling part of the forming material. A forming roll device for the rough forming section of an ERW tube forming device.