KR101175430B1

KR101175430B1 - guide apparatus for shape rolling

Info

Publication number: KR101175430B1
Application number: KR1020100017643A
Authority: KR
Inventors: 박병익; 전상규
Original assignee: 현대제철 주식회사
Priority date: 2010-02-26
Filing date: 2010-02-26
Publication date: 2012-08-20
Also published as: KR20110098178A

Abstract

The present invention relates to a guide for rolling a shaped steel. Specifically, the web guide 110 is disposed on both sides of the web of the rolled steel and guides both flange inner and web surfaces of the rolled steel, and is disposed outside the flanges on both sides of the rolled steel. It includes a limiting guide box 130, the web guide has a structure that is provided with a width variable means 140 for varying the width of the web guide according to the size of the section steel rolling material. According to this configuration, by simply varying the width of the web guide according to the size of the rolled steel roll, the flange of the rolled steel roll supplied to the rolling mill is prevented from being rolled up to prevent rolling failure and reduce the manufacturing cost of the guide device. have.

Description

Guide apparatus for shape rolling

The present invention relates to a guide device for rolling a section steel installed at an inlet side of a rolling mill to guide a section steel rolling material.

A rolling mill is a machine that passes a material between rolls rotating at room temperature or high temperature, and uses a plastic deformation of the material to form a plate, a bar, a cross section, etc., which has a hot rolling mill and a cold rolling mill according to the rolling working temperature. Depending on the product, there are a blooming mill, billet mill, section mill, slab mill, rod mill, etc., depending on the number of rolling rolls and the type of assembly. 2-stage rolling mill, 3-stage rolling mill, 4-stage rolling mill, special rolling mill, etc. are mentioned.

Rolled materials used to manufacture H-beams, I-beams or channels such as slabs, slabs, etc. are processed to produce molten steel for rolling after transferring molten iron from the blast furnace to the steelmaking furnace to refine the steel. It is produced in the form of a billet, bloom, and the like.

The rolled material is transferred to a rolling mill to be re-heated and rolled to form a rolled steel rolled material, and the rolled steel rolled material is cut by a high speed rotating cutter while being transported on a roller table to have a process of manufacturing a shaped steel of an appropriate length.

Guide devices for guiding the shaped steel rolled material are installed at the inlet side and / or the outlet side of the rolling mill.

The present invention is a guide device for rolling a section steel that is installed at the inlet of the rolling mill to guide the rolled steel roll material in order to easily adjust the width of the web guide to prevent the flange of the section steel supplied to the rolling mill according to the size of the section steel. The purpose is to provide.

The guide device for rolling a section steel according to the present invention is disposed on both sides of a web of a section steel rolling material, and a web guide for guiding both flange inner surfaces and a web surface of the section steel rolling material, and a section outside the both flanges of the section steel rolling material. It includes a guide box for limiting the size of the rolled section steel, characterized in that the web guide is provided with a width variable means for varying the width of the web guide according to the size of the steel rolled material.

The web guide includes a guide plate in close contact with the flange inner surface and the web surface, and a support rib standing in the middle of the guide plate to support the web guide, wherein the width varying means includes an auxiliary guide plate in close contact with the inner surface of the flange; And a plurality of liners fitted between the support ribs and the auxiliary guide plate according to the width of the shaped steel rolling material, and a fixing member for fixing the auxiliary guide plate and the liner to the support ribs.

According to the guide device for rolling the shaped steel according to the present invention, by simply varying the width of the web guide according to the size of the shaped steel rolling material, the flange of the shaped steel rolling material supplied to the rolling mill is prevented from rolling and preventing rolling failure and guiding. This reduces the manufacturing cost of the device.

1 is a block diagram showing a guide device for rolling a shaped steel according to an embodiment of the present invention,
FIG. 2 is a left side view (shown in cross section) of FIG. 1;
3 is a perspective view showing an upper portion of the variable width step of FIG.
4 is a plan view showing the inside of the support of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, the guide device of the rolling mill for rolling the H-shaped steel is described as an example, and the embodiment in which the width variable means is installed only on the web upper guide for guiding the upper side of the web in the state of rolling the steel-rolled steel in a flat state is taken as an example. Listen and explain. The guide device for rolling of the section steel according to the present invention may be applied to a rolling mill for rolling an H-beam, an I-beam, or a channel, and the width varying means may be installed on a lower guide of the web for guiding the lower side of the web. It can also be installed at the bottom guide.

1 is an overall configuration diagram showing a guide device for rolling a shaped steel to which the present invention is applied, and FIG. 2 is a left side view (shown in cross section) of FIG. As shown in the drawing, the guide device 100 for guiding the H-shaped steel rolled material is provided at the inlet side of the rolling roll 12 of the rolling mill 10.

The rolling mill 10 is provided with a roll choke (not shown) for fixing the rolling roll 12 to the rolling mill, while a driving motor for driving the rolling roll 12 is provided.

The guide device 100, the upper and lower guides 110, 120 for guiding the inner surface and the web surface of both flanges of the H-shaped steel rolling material (S), the lower side of the guide 110, 120 both sides of the web of the H-shaped steel rolling material (S) In the upper and lower sides in the guide box, the guide box 130 for limiting the size of the steel rolled material is a structure that is arranged outside the flange to accommodate both flanges of the steel rolled material, the web upper guide 110 It is fixed to the upper mounting table 140, the lower guide guide 120 is fixed to the inside of the guide box 130, the guide box 130 is fixed to the base 160.

The upper and lower guides 110 and 120 of the web are guide plates 111 and 121 in close contact with the flange inner surface and the web surface of the H-shaped steel roll S, and in the middle of the guide plates 111 and 121. It is provided with support ribs 112 and 122 that support the web guides, and the support ribs 112 of the web guides 110 are fixed by the fixing plate 113 and the fixing member 114 to the upper mounting table ( It is fixed to the 140, the support ribs 122 of the lower guide 120 of the web is fixed to the base plate described later of the guide box 130 by the fixing plate 123 and the fixing member 124. A liner for adjusting the height may be inserted between the fixing plate 113 and the upper mounting table 140 and between the fixing plate 123 and the base plate (described later).

In addition, the web upper guide 110 is provided with a width variable means 150 for varying the width of the web upper guide according to the size of the steel rolled material.

The guide box 130 includes a base plate 131 fixed to the base 160, and vertical plates 132 and 132 ′ standing on the base plate 131 to limit the size of the rolled steel.

As shown in Figures 3 and 4, the variable width means 150 is an auxiliary guide plate (151, 151 ') in close contact with the inner surface of the flange of the H-shaped steel rolled material, and according to the width of the H-shaped steel rolled material A plurality of liners 152 and 152 'fitted between the support ribs 112 and the auxiliary guide plates 151 and 151', and the auxiliary guide plates 151 and 151 'and the liner 152 and 152. ') Consists of a plurality of fixing members (153, 153') for fixing to the support ribs (112).

The auxiliary guide plates 151 and 151 'are disposed at the end of the guide plate 111 of the guide on the web 110, the liner 152, 152' is made of a rectangular plate or a circular plate of various thicknesses, A hole in which the fixing members 153 and 153 'is inserted is formed in the middle of the liners 152 and 152'.

The fixing members 153 and 153 'are made of bolts and are fixed by being screwed to the support ribs 112, and the head of the fixing members 153 and 153' is accommodated in the grooves on the side of the auxiliary guide plates 151 and 151 '.

The guide device for rolling the shaped steel according to the present invention configured as described above is a liner without changing the guide device when rolling various H-shaped steel rolls, I-shaped steel rolls, channel rolled materials, etc., in which the gap between flanges is not large. By simply changing the guide width of the web guide by rolling only the number and size of the rolls, the guide gap is easily eliminated to prevent the flange of the section steel supplied to the rolling mill from being rolled up to prevent rolling failure and to reduce the cost of manufacturing the guide.

100: guide device 110: guide on the web
120: web guide information 111, 121: information board
112, 122: support ribs 113, 123: fixed plate
130: guide box 131: base plate
132, 132 ': Vertical plate 140: Upper mounting table
150: variable width means 151, 151 ': auxiliary guide plate
152, 152 ': Liner 153, 153': Fixing member

Claims

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Web guides disposed on both sides of the web of the rolled steel and guide the inner and outer flanges of the two sides of the rolled steel, and guide boxes disposed outside the flanges on both sides of the rolled steel to limit the size of the rolled steel. and,
The web guide is provided with a width variable means for varying the width of the web guide according to the size of the section steel rolling material,
The web guide includes a guide plate in close contact with the flange inner surface and the web surface, and a support rib erected on the guide plate to support the web guide,
The width varying means may include an auxiliary guide plate in close contact with an inner surface of the flange, a plurality of liners fitted between the support ribs and the auxiliary guide plates according to the width of the steel rolled material, and the auxiliary guide plate and the liner to the support ribs. Guide device for rolling of a steel beam comprising a fixing member for fixing.