JP2001198782A - On-line device for removing burr-like projection of shape steel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burr-like projection removing device for shape steel capable of a efficiently removing the bur-like projections produced in the edge section of shape steel without a transferring device for shape steel and a moving device for a rotary body such as a wire brush and even if the shape steel is warped. SOLUTION: An on-line removing device for removing the burr-like projections 2 produced in the edge section of shape steel 1 after being rolled comprises a presser roller 4 arranged opposing to a transferring roller 8 movably in the vertical direction on the outlet side of a finish rolling mill and having a groove fitting to the shape of the shape steel, a presser means 5 for giving pressing force to the presser 4, and a brush roll 3 arranged at a position contacting the edge section of the shape steel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing burrs on a section of a steel section for removing burrs on the edge of the section.

[0002]

2. Description of the Related Art In the production of a section steel such as an angle iron, a part of an edge portion of the section steel is sometimes wrapped and thinly stretched during rolling. As a result, as shown in FIG.
In the edge portion A of the section steel 1, a burring-like projection 2 continuous in the longitudinal direction is generated as shown in FIG. This example shows a burring-like projection 2 in a trapezoidal angle steel, which is generated continuously or intermittently in the longitudinal direction.

[0003] Such burrs are not only inferior in shape, but also hinder the application of paint during painting. In the case where the projection is in the form of a thin piece, the coating may be applied from above, but it may be peeled off during use after coating, and the coating defect may not be detected.

Japanese Utility Model Laid-Open Publication No. Sho 62-134653 discloses a burr-like projection for rotating and contacting such a burr-like (burr-like) projection and scraping it off. There has been proposed an apparatus for removing a burr-like projection of a shaped steel using a rotating body for use. The device according to this technique includes a moving unit for moving the shaped steel or the above-mentioned rotating body in the longitudinal direction of the shaped steel, and a rotation driving unit for the rotating body,
Burr-like projections can be automatically removed along the entire length of the section steel in the longitudinal direction. As the rotating body, a rotary wire brush, a wheel paper having sand paper adhered to the outer peripheral surface of the rotating body, a grinding wheel for a grinder, and the like have been used.

[0005]

[Problems to be Solved by the Invention]
The prior art having a moving means for moving a shaped steel or a rotating body in the longitudinal direction of the shaped steel as in the technique described in Japanese Patent No. 146553 has the following problems.

First, in the prior art, a moving device (transporting device) for moving a rotating body such as a shaped steel or a wire brush in the longitudinal direction of the shaped steel is required. In general, steel shapes are
The length is several tens of meters, and even a short one is as long as 40 m. The length is getting longer due to a demand for a reduction in yield, and a product having a length of 120 m is also manufactured. Therefore, the length of the section steel is also required for the moving distance by the moving device, and the moving device such as a rail becomes large.

[0007] When the section steel is to be moved, it is necessary to install a transfer table long enough to accommodate the section steel before and after the rotating body (the entrance side and the exit side). Therefore, since the length of the entire apparatus is twice or more the length of the section steel, there is a problem that the apparatus becomes large and an installation place requires a large space.

When the rotating body is moved, it is necessary that the power supply means (power cable) and control means for the rotating body can be moved following the rotating body. Furthermore, the processing device for dust generated by removing the protrusions is also moved following, and the entire device becomes large-scale. It seems that the section steel may be fixed to the yard or the like, but in that case, the section steel is carried into and out of the yard by a crane or the like, and crane work is required. From the viewpoint of work efficiency, a transfer table for loading and unloading the shaped steel is also required.

[0009] The shape steel after rolling may have a shape defect such as bending. In this case, it is possible to make the edge portion of the shaped steel contact the rotating body by a side guide (guide frame in the above-mentioned publication) or the like for the horizontal bending. However, vertical bending (warpage)
However, there is a problem that the side guide or the like cannot maintain the contact state between the edge portion of the shaped steel and the rotating body.

[0010] As described above, the conventional removing apparatus has a problem that the equipment becomes large-scale, the equipment cost increases, and a large space for installation is required. There was a problem that (warping) could not be dealt with.

The present invention solves the above-mentioned problems of the prior art, and does not require a conveying device for a shaped steel or a moving device for a rotating body such as a wire brush. It is another object of the present invention to provide a device for removing burrs on a shaped steel, which can efficiently remove burrs on the edge of the shaped steel.

[0012]

The above object is achieved by the following invention. It is a removing device for removing burrs formed on the edge of the section steel after rolling, and is provided on the exit side of the finishing rolling machine so as to be movable up and down in opposition to the conveying roller. A pressing roller having a groove matching the outer shape, pressing means for applying a pressing force to the pressing roller, and a brush roll disposed at a position in contact with an edge portion of the shaped steel; It is an on-line removal device for burrs.

According to the present invention, the removing device is installed on the outlet side of the finishing mill. A holding roller is provided opposite to the transport roller, and the shaped steel is pressed against the transport roller to reduce the vertical fluctuation due to the warpage of the shaped steel. The pressing force of the pressing roller is given by pressing means. The pressing force is in a range where no reduction is applied to the section steel, that is, a force that is smaller than a force that causes a dimensional change or deformation of the cross section, and is a force that can prevent bending deformation.

Since grooves are formed in the pressing roller in accordance with the outer shape of the section steel to be processed, movement of the section steel in directions other than the longitudinal direction is restricted by the grooves. This makes it possible to prevent the section steel from fluctuating in the lateral direction (horizontal direction), that is, it is possible to perform centering, so that the brush roll can always contact the edge of the section steel. In addition, the edge of the shaped steel may be restrained from the horizontal direction by the guide roller, and the contact state between the edge of the shaped steel and the brush roll can be more stably maintained.

In this way, even if the shaped steel after rolling has a deformation such as warpage or bending, the burrs on the edge of the shaped steel can be scraped off with a brush roll. As a result, it becomes possible to remove the burrs on-line from the section steel after rolling, which is not always in a good shape. Further, since the removal process is performed online, a large-scale device such as a device for transporting a shaped steel or a device for moving a brush roll is not required. Along with this, there is no need for a transfer table on the entrance side and the exit side of the apparatus, or a large space for installing the section steel being processed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view schematically showing an apparatus according to the present invention. In this figure, the apparatus is viewed from the conveying direction of the shaped steel, and a brush roll 3
Indicates a state in which is in contact. Brush roll 3
It is driven by a motor via a belt. The position of the brush roll 3 is adjusted to a position in contact with the edge of the shaped steel 1 by adjusting means such as an electric screw. The material of the brush roll may be a material in which a normal wire is embedded, but from the viewpoint of corrosion resistance and abrasion strength, it is desirable to use a stainless steel wire.

The shaped steel 1 is sandwiched between the conveying roller 8 and the pressing roller 4 provided opposite to the conveying roller 8. The pressing roller 4 is formed with a groove that conforms to the outer shape of the section steel 1 (in this figure, unequal-sided unequal thickness angle section steel).
Here, contact is made on two slopes of the angle iron.
The pressing roller 4 is driven by pressing means 5 such as an electric screw or a hydraulic cylinder, and applies a pressing force to the upper part of the angle steel. Thus, the shape steel 1
Is constrained in the vertical direction in the figure and also constrained in the horizontal direction (lateral direction).

In this example, as shown in FIG. 1, a horizontal pressing roller 9 is provided. By installing the horizontal holding roller 9 at a position opposite to the brush roll and in contact with the edge of the angle iron, the horizontal position (vertical in the traveling direction) of the shape steel is more reliably restrained. .

In particular, the degree of the unequal side of the angle iron is large,
This is effective when the slope opposite to the brush roll is lying (small angle). On a slope having a small angle, the lateral restraining force of the pressing roller is reduced. Therefore, in the absence of the lateral pressing roller 9, the angle iron is likely to escape in the lateral direction due to the reaction force received from the brush roll, and the contact between the edge of the shaped steel and the brush roll cannot be maintained. The brush roller 3 is moved by the horizontal holding roller 9.
Can prevent the angle iron 1 from escaping laterally.

FIG. 2 is a side view of the apparatus of the invention, viewed from the side. Here, an entrance guide roller 6 is provided on the entrance side of the press roll 4. Thereby, the load of the pressing roll 4 is dispersed, so that the pressing force can be strengthened, and the restraint of the shaped steel in the vertical and horizontal directions can be further ensured.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. The conveying speed of the shaped steel after rolling is 2m /
s, whereas the number of rotations of the brush roll is 20
00 rpm. As a result, the burrs on the edge of the section steel were completely removed. In this case, a 10-m-long section steel could be processed in 5 seconds.

In the case where the processing was manually performed in the past, it took about one hour including before and after operations such as carrying in and out of the shaped steel and handling operations, but the working efficiency has been greatly improved. . In addition, compared with the prior art, a device for moving a rotating body such as a shaped steel or a wire brush in the longitudinal direction of the shaped steel, it takes several minutes before and after the work of loading and unloading the shaped steel. It can be said that the work efficiency has been greatly improved.

[0023]

According to the present invention, a press roller having a groove matching the outer shape of a shaped steel is provided on the output side of a finishing mill, and a brush roll is provided at a position in contact with an edge portion of the shaped steel.
The burrs on the edge of the section steel have been removed. As a result, it becomes possible to remove the burrs on-line from the section steel after rolling, which is not always in a good shape. In addition, work efficiency can be greatly improved by going online, and large-scale equipment such as a shape steel transfer device or brush roll moving device is not required.
Equipment costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment.

FIG. 2 is a side view showing the embodiment.

FIG. 3 is a view showing an edge portion of a section steel and a burring-like projection generated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Section steel 2 Burr-shaped protrusion 3 Brush roll 4 Holding roller 5 Pressing means 6 Inlet guide roller 8 Conveying roller 9 Horizontal holding roller

Claims (1)

[Claims] 1. A removing device for removing burrs formed on an edge portion of a section steel after rolling, the removing device being provided on a delivery side of a finishing mill so as to be vertically movable in opposition to a transport roller, A shape comprising: a pressing roller having a groove matching the outer shape of a shaped steel; pressing means for applying a pressing force to the pressing roller; and a brush roll arranged at a position in contact with an edge of the shaped steel. An online removal device for steel burrs.