KR20080010830A - Rolling mill for automatically controlling position for wire rod - Google Patents

Abstract

A wire rod automatic position controlling rolling mill is provided to improve the wire-rod quality and to reduce replace time by forming guide units separated from a horizontal rolling mill, at an outer part of a body. A wire rod automatic position controlling mill comprises a horizontal rolling mill, a detector(1), and a moving control system. The horizontal rolling mill has a body(100a), a plurality of planar rolls(110), an inlet guide(120), an outlet guide, and fixed stands(180,181). The planar rolls are installed at the body. The inlet guide and the outlet guide wherein a rolling mill material is guided, are fixed to an outer part of the body. The fixed stand which is fixed at the outer part of the body, fixes the inlet guide and the outlet guide. The detector is installed at one part of the horizontal rolling mill, and detects the state when the rolling mill is passing through. The moving control system helps the horizontal rolling mill to move to a wire-rod rolling mill pass line while progressing a thermal wire-rod rolling. The moving control system is installed at one part of the body, and has a shifting cylinder moving the planar rolls.

Description

Wire Rod Automatic Positioning Rolling Mill {ROLLING MILL FOR AUTOMATICALLY CONTROLLING POSITION FOR WIRE ROD}

1 is a schematic diagram illustrating a typical wire rod rolling process.

Figure 2 is a schematic diagram illustrating a roughing mill flat roll mill and a guide device according to the prior art.

3 is a view schematically showing the configuration of a wire rod automatic position control rolling mill according to the present invention.

Figure 4 is a side view illustrating a flat roll rolling and a guide state of the wire rod automatic positioning rolling mill according to the present invention.

<Description of the symbols for the main parts of the drawings>

1. Detector

100. Horizontal rolling mill

100a. main body

110. Flat roll

120. Entrance Guide

170. Exit Guide

180,181. Fixture

The present invention relates to a wire rod automatic position control rolling mill, and more particularly, to improve the surface quality and productivity of a rolled material by applying a wire rod rolling mill automatically controlled the position of the roll for each work of the billet (本). It relates to a wire rod automatic position control rolling machine for reducing the roll cost.

Typically, the wire rough rolling process is generally wire rod rolling in the manner of H-H-V-H-V (where H = Horizontal, V = Vertical), the wire rough rolling process is heated as shown in FIG. The billet extracted from the furnace is produced through rolling mill # 1 to 5 (STD) to produce a rolled material of diameter 95 ~ 100mm.

In the intermediate rough rolling process, the rolling material is passed through eight rolling mills of rolling mill # 5A to 11 (STD) to produce a rolling material having a diameter of 29 to 42 mm.

In addition, an inlet guide is provided at the inlet of each wire roughing mill to guide the rolled material accurately to the ball roll, and an outlet guide for accurately inducing the rolled material that is rolled and discharged to the next rolling mill is provided at the outlet of the ball roll of the roughing mill. It consists essentially.

In recent years, wire rod rolling has been developed for technology, and as shown in FIG. 2, a flat roll 11 is developed in a horizontal rolling mill 10, which is an initial rolling process of a rough rolling process, to perform flat roll 11 rolling.

The exit guide of the flat roll 11 of the rough rolling process of the rough rolling process of a wire rod and the intermediate rough rolling process is arrange | positioned close to the flat roll 11, and preventing the release of a rolled material is arrange | positioned.

Then, the inlet guide 12 for guiding the rolled material to the center of the pass line of the flat roll 11 is disposed at the inlet of the next rolling mill, and continuous rough wire rolling is performed.

In addition, the wire roll rolling work (hereinafter referred to as caliber replacement work) for moving the wire rod rolling work by moving to the center line of the wire rolling work pass line according to the wear of the wire rolling roll configured in the rolling mill is performed several times. Doing

And the replacement work cycle of the flat roll 11 is about 30 days.

In addition, the guide device 12, 14 fixed to the horizontal rolling mill 10 is dismantled from the horizontal rolling mill 10 to move the horizontal rolling mill 10 to the pass line in the conventional caliber replacement work, and then again the guide apparatus 12 , 14) to move the wire rolling work pass line, and after selecting the center of the guide device (12,14) to secure the guide device (12,14) to the horizontal rolling mill (10), etc. The work is very difficult, the work takes a long time there is a problem that the productivity is greatly reduced.

And as the wear portion (A) is generated in the flat roll 11 in accordance with the continuous hot wire rolling continuous wear life of the rolling roll is reduced due to the non-uniform wear of the rolling roll (B) is generated.

In addition, the caliber put into the material pass line of the rolling roll is used during the rolling work of high temperature heated material, and after using the proper amount of usage (tonage) due to thermal fatigue and abrasion, it is replaced with a caliber configured at another position of the rolling roll, The exit guide 12 is mounted on the mill rest bar 14 and fixed with bolts 15 so that the pass line adjustment and replacement time occurs after dismantling the bolts 15 of the inlet and outlet guides 12. Doing.

The present invention was created in order to solve the above problems, constituting a guide device separated from the horizontal rolling mill to facilitate the work of the wire rolling caliber, while reducing the replacement time to increase productivity, wear of the rolling roll It is an object of the present invention to provide a wire rod automatic positioning rolling mill to uniformly extend the life of the rolling roll and improve the wire quality.

Wire rod automatic position control rolling mill of the present invention for achieving the above object, the body, a plurality of flat rolls installed on the main body, the inlet guide and outlet guide fixed to the outside of the main body to guide the rolled material, and A horizontal rolling mill fixed to an inlet guide and an outlet guide and having a fixing unit fixed to the outside of the main body; A movement control system installed on one side of the horizontal rolling mill and detecting a state in which the rolled material passes, allowing the horizontal rolling mill to move to the wire rolling pass line for a predetermined time during hot wire rolling; It is characterized by that.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic view showing a configuration of a wire rod automatic positioning rolling mill according to the present invention, Figure 4 is a side view illustrating a flat roll rolling and a guide state of a wire rod automatic positioning rolling mill according to the present invention have.

Referring to each of the drawings, the wire rod automatic position control rolling mill according to the present invention comprises a horizontal rolling mill 100 and a movement control system.

Specifically, the horizontal rolling mill 100 has a main body 100a, a plurality of flat rolls 110 provided on the main body 100a, and an inlet guide fixedly installed outside the main body 100a to guide the rolled material. 120 and the outlet guide 170, the inlet guide 120 and the outlet guide 170 is fixed to the fixing unit (180,181) is provided fixed to the outside of the main body (100a) is provided.

The movement control system includes a detector (1) installed at one side of the horizontal rolling mill (100) to detect a state in which the rolled material passes. The horizontal rolling mill (100) passes the wire rolling path for a predetermined time during hot wire rolling. Allows movement to the line.

The movement control system includes a shifting cylinder 150 installed at one side of the main body 100a of the horizontal rolling mill 100 to accurately move the position of the flat roll 110.

In addition, a clamping cylinder 160 is installed at one side of the horizontal mill 100 to prevent the flow of the rolled material by controlling the movement of the horizontal mill 100.

And a shift unit (Shift Unit) which is automatically controlled the position of the flat roll 110 for every one rolled material work is provided.

Referring to the action of the wire rod automatic positioning rolling mill according to the present invention having the configuration as described above are as follows.

Referring back to the drawings, the wire rod automatic positioning rolling mill according to the present invention, the inlet guide 120 and the outlet guide 170 of the conventional horizontal rolling mill 100 to improve the rolling mill rest bar mounting type, pass line fixed type, During the continuous rolling, the horizontal rolling mill 100 is constantly moved to the wire rolling pass line of the horizontal rolling mill 100 by a device for precisely controlling the position of the rolling mill so that hot wire rolling is performed.

Specifically, when the rolled material is detected by the detector 1 and the end of the rolled material is detected by the detector 1 again, the wire rod is recognized as being completed and the horizontal rolling mill ( The clamping cylinder 160 of 100 is dismantled, and then the shifting cylinder 150 of the horizontal rolling mill is operated so that the horizontal rolling mill 100 moves very gradually.

Then, when the detection signal of the rolled material is input to the detector 1 by the tip of the rolled material, the shifting cylinder 150 is stopped by the wire position control program, and the clamping cylinder 160 is operated to operate the horizontal rolling mill 100. Is fixed.

While repeating the series of operations as described above, the horizontal roll 100 flat roll 110 is gradually rolled while the wire roll is made, the wear of the flat roll 110 is made very uniform.

In addition, since the horizontal rolling mill 100 is repeatedly moved continuously and continuously during the wire rod rolling operation, there is no need to replace the wire caliber as in the prior art.

As described above, the wire rod automatic positioning rolling mill according to the present invention has the following effects.

Gradual and repeatable movement of the flat roll of the horizontal rolling mill during the wire rolling operation, so that the flat roll wear of the horizontal rolling mill is very uniform, extending the life of the rolling roll and improving the wire surface quality due to the uneven wear of the wire rolling. In addition, since the guide movement operation of the wire rod rolling is omitted, the productivity improvement and the load intensity of the rolling operator can be greatly reduced due to the reduction of downtime.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (3)

A main body, a plurality of flat rolls installed on the main body, an inlet guide and an outlet guide fixedly installed at the outside of the main body to guide the rolled material, and a fixing device stand which fixes the inlet guide and the outlet guide and is fixed to the outside of the main body. Horizontal rolling mill; A movement control system installed on one side of the horizontal rolling mill and detecting a state in which the rolled material passes, allowing the horizontal rolling mill to move to the wire rolling pass line for a predetermined time during hot wire rolling; Wire rod automatic position control rolling mill, characterized in that. The method of claim 1, The movement control system is installed on one side of the main body automatic positioning control rolling mill, characterized in that it comprises a shifting cylinder for moving the position of the flat roll. The method of claim 1, And a clamping cylinder installed at one side of the horizontal mill to prevent flow when the rolled material is input by controlling and intermitting the movement of the horizontal mill.

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