KR20120110525A - Apparatus of roll applicable to tailored rolled blank - Google Patents

Abstract

The present invention relates to a rolling roll device of a custom-rolled steel sheet, the upper rolling roll having a different diameter for each section set for the longitudinal direction, and the lower rolling roll disposed downwardly spaced from the upper rolling roll and driven in conjunction with the upper rolling roll It includes.

Description

Rolling roll apparatus of custom rolled steel sheet {APPARATUS OF ROLL APPLICABLE TO TAILORED ROLLED BLANK}

The present invention relates to a rolling roll device of a custom-rolled steel sheet, and more particularly, to a rolling roll device that can easily produce a custom-rolled steel sheet by having a rolling roll disposed on the rolling line having a different diameter in the longitudinal direction. It is about.

Faced with the recent energy problem, in particular, the automotive industry demands high strength and light weight materials for various parts, and the need for custom rolled steel sheets having different thicknesses is emerging to meet these demands.

As a method of manufacturing such custom-rolled steel sheet, the TRB method has recently emerged. Tailored rolled blank (TRB) refers to a technique of manufacturing or molding steel sheets having different thicknesses by rolling roll gap adjustment, and is a method of forming steel sheets so that thickness differences appear within a single blank.

An object of the present invention is to provide a rolling roll apparatus of a customized rolled steel sheet in which the rolling roll structure of the rolling line is changed and applied in order to effectively give a thickness difference to the customized rolled steel sheet.

It is another object of the present invention to provide a rolling roll apparatus of a custom-rolled steel sheet which can continuously produce a custom-rolled steel sheet by continuously operating a rolling line.

According to one aspect of the invention, the upper rolling roll having a different diameter for each section set for the longitudinal direction; And a lower rolling roll disposed downwardly spaced apart from the upper rolling roll to drive in conjunction with the upper rolling roll.

Here, the upper rolling roll and the lower rolling roll can be driven at the same roll speed and roll pressing force.

In addition, according to another aspect of the present invention, the upper rolling roll having a different diameter for each section set for the longitudinal direction; A lower rolling roll disposed downwardly spaced apart from the upper rolling roll and driven in conjunction with the upper rolling roll; A rotation driving unit providing a rotational force necessary for driving the upper rolling roll and the lower rolling roll; A pressurizing driving unit providing a pressing force necessary for gap control of the upper roll and the lower roll; A sensing unit which detects a roll speed and a roll pressing force of the upper roll and the lower roll to output an electrical signal; And a controller for controlling the operation of the rotary driver and the pressure driver by receiving the electrical signal output from the sensing unit.

Here, the control unit may control the operation of the rotary driving unit and the pressure driving unit such that the upper rolling roll and the lower rolling roll are driven at the same roll speed and roll pressing force.

Preferably, the control unit, a data input unit for receiving an electrical signal output from the sensing unit; A data converter converting the electrical signal received through the data input unit into arithmetic data information; And a data calculation processor configured to calculate an error by comparing the data information converted by the data converter with reference information, and apply an electrical signal to the rotary driver and the pressure driver to remove the calculated error.

Here, it may further include a dimension inspection unit disposed spaced above the exit side of the upper roll and the lower rolling roll, the dimension inspection unit for inspecting the dimensions of the finished steel sheet to have a different thickness difference.

The dimension inspection unit may use a laser vision sensor for measuring the height difference by converging the reflected light after irradiating light to the upper surface of the steel sheet is completed to have a different thickness difference.

And it may further include a terminal for receiving the dimensions of the steel sheet measured by the dimension inspection unit through the wired, wireless communication interface to output to the operator as video or audio information.

According to the present invention, with respect to the upper die roll provided on the rolling line, to have a different diameter in the longitudinal direction, there is an effect that can easily give a difference in thickness during the production of custom-rolled steel sheet.

In addition, according to the present invention, there is no need to stop the operation of the rolling line or adjust the pressing force of the rolled steel sheet during forming and fabrication of the custom-rolled steel sheet, thereby enabling continuous production, thereby significantly improving productivity.

1 is a view showing a schematic configuration of a rolling roll device of a custom-rolled steel sheet according to an embodiment of the present invention.
2 is a view schematically showing the cross-sectional structure of the upper rolled roll of the configuration of the rolling roll device of the custom-rolled steel sheet according to an embodiment of the present invention.
3 is a view showing a front view of a rolling roll device of a custom-rolled steel sheet according to an embodiment of the present invention.
Figure 4 is a view showing a side view of the rolling roll device of the custom-rolled steel sheet according to an embodiment of the present invention.
5 is a view showing a schematic configuration of a rolling roll device of a custom-rolled steel sheet according to another embodiment of the present invention.
6 is a product diagram showing a schematic shape of a custom-rolled steel sheet produced using a rolling roll device of a custom-rolled steel sheet according to embodiments of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a rolling roll device of a custom-rolled steel sheet according to a preferred embodiment of the present invention.

1 is a view showing a schematic configuration of a rolling roll device of a custom-rolled steel sheet according to an embodiment of the present invention.

In order to clearly understand the present invention conceptually, only FIG. 1 clearly clarifies only main features, and as a result, various modifications of the drawings are expected, and the scope of the present invention needs to be limited by the specific shapes shown in the drawings. There is no.

Referring to FIG. 1, the rolling roll apparatus of the custom-rolled steel sheet shown in FIG. 1 is disposed to be spaced apart from the upper rolling roll 110 and the upper rolling roll 110 having a different diameter in the longitudinal direction and interlocked with the upper rolling roll 110. And a lower rolling roll 130 to be driven.

Steel sheet (B) produced according to the present embodiment, as shown, is inserted between the gap of the upper roll roll 110 and the lower roll roll 110, the shape and dimensions are custom made. In particular, in the shape, it may have a heterogeneous thickness in the width direction.

To this end, the upper rolling roll 110 has a different diameter for each section with respect to the longitudinal direction. As can be seen through Figure 2, the upper rolling roll 110 is divided by the set section (L1, L2), has a relatively large diameter (d1) in the L1 section, a relatively small diameter (d2) in the L2 section Have That is, the upper rolling roll 110 has a large diameter rolling roll 110a and a small diameter rolling roll 110b as a series of bodies.

The lower rolling roll 110 spaced apart from the upper rolling roll 110 is driven in conjunction with the upper rolling roll 110. Here, the upper rolling roll 110 and the lower rolling roll 130 may be driven at the same roll speed and roll pressing force.

3 is a view showing a front view of the rolling roll device of the custom-rolled steel sheet according to an embodiment of the present invention, Figure 4 is a view of the rolling roll device of the custom-rolled steel sheet according to an embodiment of the present invention from the side Figure is a diagram.

3 to 4 will be described the production process of the custom-rolled steel sheet of different thicknesses can be produced according to the present invention.

As shown in FIG. 3, the upper rolling roll 110 in which the large diameter rolling roll 110a and the small diameter rolling roll 110b are integrally formed is interlocked with the lower rolling roll 110 having the same diameter. According to this, the custom-rolled steel sheet B having a dissimilar thickness can be produced.

In particular, a steel sheet B1 having a relatively thin thickness t1 is formed on the larger roll roll 110a side, and a steel sheet having a relatively thick thickness t1 is formed on the roll roll 110b side having a smaller diameter. B2) is molded. Referring to Figure 4, in accordance with the present invention it can be seen from the side that the shape of the custom-rolled steel sheet having different thicknesses (t1, t2).

By using the rolling roll apparatus of the custom-rolled steel sheet according to the present invention, by improving the structure of the upper rolling roll 110 as described above, it is possible to easily produce a steel sheet (B) having a different thickness. In addition, there is an advantage that the continuous production is possible because it does not need to stop the operation of the rolling line or adjust the pressing force when forming a molded rolled steel sheet.

Next, with reference to Figure 5 will be described a rolling roll device of a custom-rolled steel sheet according to another preferred embodiment of the present invention.

As can be seen through Figure 5, the rolling roll device of the custom-rolled steel sheet according to the illustrated embodiment, including the above-described upper rolling roll 110 and lower rolling roll 130, at the same time, the rotary drive unit 160, pressure The driver 170 further includes a sensing unit 140 and a controller 150. Therefore, in this embodiment, detailed description of the above-described upper rolling roll 110 and the lower rolling roll 130 will be omitted.

As shown, a custom-rolled steel sheet B having a dissimilar thickness is processed between the upper rolling roll 110 having a different diameter for each section and the lower rolling roll 130 having the same diameter.

At this time, the rotation driving unit 160 serves to provide a rotational force required for driving the upper rolling roll 110, the lower rolling roll 130 of each. And the pressure driving unit 170 serves to provide a pressing force required for the gap control of each of the upper rolling roll 110 and the lower rolling roll 130.

In addition, the sensing unit 140 may provide a function of outputting an electrical signal by detecting a roll speed and a roll pressing force of the upper rolling roll 110 and the lower rolling roll 130.

The electrical signal output from the sensing unit 140 is transmitted to the control unit 150. In addition, the control unit 150 receives the electrical signal output from the sensing unit 140 and controls the operations of the rotation driving unit 160 and the pressure driving unit 170.

At this time, the control unit 150 adjusts and controls the rotary driving unit 160 and the pressure driving unit 170 so that the same roll speed and roll pressing force are applied between the upper rolling roll 110 and the lower rolling roll 130. Productivity improvement of a rolled steel plate can be aimed at.

To this end, the controller 150 may further include detailed configurations of the data input unit 152, the data converter 154, and the operation processor 156.

The sensing unit 140 detects the roll speed and the roll pressing force of the upper rolling roll 110 and the lower rolling roll 130, and outputs the electrical signal through the data input unit 152.

Then, the electrical signal received through the data input unit 152 is converted into arithmetic data information, the data converter 154 is included to implement this.

The operation processor 156 calculates an error by comparing the data information converted by the data converter 154 with reference information. Subsequently, the calculation processing unit 156 applies an electrical signal necessary for driving control of the rotation driving unit 160 and the pressure driving unit 170 in a direction of eliminating the calculated error.

In accordance with the signal processing of the control unit 150, the upper rolling roll 110 and the lower rolling roll 130 are driven equally at the set roll speed and roll pressing force, and produces a customized rolled steel sheet having different thicknesses.

In addition, the rolling roll device of the custom-rolled steel sheet according to the present embodiment may further include a dimension inspection unit 180.

The dimension inspection part 180 is spaced apart above the exit side of the upper rolling roll 110 and the lower rolling roll 130, and inspects the dimension of the completed steel plate so that it may have a different thickness difference.

As a specific example corresponding to the dimension inspection unit 180, a laser vision sensor may be used. The laser vision sensor irradiates light to the upper surface of the steel sheet and converges the reflected light, and measures the distance, that is, the height difference through the time difference from the time at which the light is irradiated to the time at which the reflected light converges. Thereby, the dimensional precision of the custom-rolled steel plate which has a heterogeneous thickness can be measured.

Furthermore, the dimensions of the steel sheet measured by the dimension inspection unit 180 may be transmitted to the operator as video or audio information through a wired or wireless communication interface. In order to implement this, the terminal 190 capable of wired and wireless transmission and reception is provided. It may be further provided.

6 is a product diagram showing a schematic shape of a custom-rolled steel sheet produced using a rolling roll device of a custom-rolled steel sheet according to embodiments of the present invention.

FIG. 6A is a schematic view of a custom-rolled steel sheet having different thickness sections B1 and B2, and FIG. 6B is a cross-sectional view showing a cross-sectional shape of the PP ′ section in FIG. 6A. 6, it can be seen that according to the present invention, steel sheets of the same type can be easily produced as custom rolled steel sheets having different thicknesses.

As described above, according to the present invention, the upper die roll provided on the rolling line, so as to have a different diameter in the longitudinal direction, it is possible to easily give a thickness difference in the production of custom-rolled steel sheet.

Furthermore, according to the present invention, it is possible to easily produce a custom-rolled steel sheet in the above manner, there is no need to stop the rolling line separately to give a thickness difference, and at the same time the need to re-adjust the roll pressing force none.

As a result, a general rolled steel sheet production method may be applied as it is to produce a steel sheet having a different thickness, such as a tailored rolled blank (TRB) steel sheet, thereby enabling continuous production. As a result, the productivity of the custom-rolled steel sheet can be greatly improved.

The rolling roll apparatus of the custom-rolled steel sheet which concerns on this invention was demonstrated above.

It is to be understood that the foregoing embodiments are illustrative in all respects and not restrictive, the scope of the invention being indicated by the following claims rather than the foregoing description.

That is, all changes or modifications derived from the meaning and scope of the claims to be described below and equivalent concepts thereof should be construed as being included in the scope of the present invention.

B: steel plate
110: upper rolled roll
130: lower rolling roll
140: sensing unit
150:
160: rotary drive unit
170: pressure drive unit

Claims (8)

An upper rolling roll having a different diameter for each section set in the longitudinal direction; And
And a lower rolling roll disposed downwardly spaced apart from the upper rolling roll and driven in conjunction with the upper rolling roll.
The method of claim 1,
The upper rolling roll and the lower rolling roll,
A rolling roll apparatus of a custom-rolled steel sheet, which is driven at the same roll speed and roll pressing force.
An upper rolling roll having a different diameter for each section set in the longitudinal direction;
A lower rolling roll disposed downwardly spaced apart from the upper rolling roll and driven in conjunction with the upper rolling roll;
A rotation driving unit providing a rotational force necessary for driving the upper rolling roll and the lower rolling roll;
A pressurizing driving unit providing a pressing force necessary for gap control of the upper roll and the lower roll;
A sensing unit which detects a roll speed and a roll pressing force of the upper roll and the lower roll to output an electrical signal; And
And a controller configured to control the operation of the rotary driver and the pressure driver by receiving the electrical signal output from the sensing unit.
The method of claim 3, wherein
The control unit,
Rolling roll apparatus of the customized rolled steel sheet, characterized in that for controlling the operation of the rotary drive unit and the pressure drive unit so that the upper rolling roll and the lower rolling roll is driven at the same roll speed and roll pressing force.
The method of claim 4, wherein
The control unit,
A data input unit configured to receive an electrical signal output from the sensing unit;
A data converter converting the electrical signal received through the data input unit into arithmetic data information; And
And a data calculation processor configured to calculate an error by comparing the data information converted by the data converter with reference information, and apply an electrical signal to the rotation driver and the pressure driver to remove the calculated error. Rolling roll device of custom rolled steel plate.
The method of claim 3, wherein
Rolled rolls of custom-rolled steel sheet further comprises a; dimension inspection unit spaced apart from the exit side of the upper rolling roll and the lower rolling roll, the dimension inspection unit for inspecting the dimensions of the finished steel sheet to have a different thickness difference Device.
The method according to claim 6,
The dimension inspection unit,
Rolling roll apparatus of custom rolled steel sheet characterized in that it is a laser vision sensor for measuring the height difference by converging the reflected light after irradiating light to the upper surface of the finished steel sheet to have a different thickness difference.
The method according to claim 6,
Rolling roll apparatus of the custom-rolled steel sheet characterized in that it further comprises a terminal for receiving the dimensions of the steel sheet measured by the dimension inspection unit through the wired, wireless communication interface to output to the operator as video or audio information.

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