KR101193859B1 - Apparatus for preventing upward movement of front part of material - Google Patents

Abstract

The present invention relates to a device for preventing upward of a material tip, comprising: a first frame part located on a side of a feed roller for transferring a material sent from a finishing mill, and a first frame part provided to spray a fluid toward the material. And a first moving part provided in the first injection part and the first frame part to adjust the distance between the first injection part and the material by moving the first frame part left and right.
According to the present invention, it is possible to prevent the front end of the material sent from the finishing mill through the high-pressure fluid injected from the injection unit can be prevented from the problem of material quality defects, such as material overlap.

Description

APAPATUS FOR PREVENTING UPWARD MOVEMENT OF FRONT PART OF MATERIAL}

The present invention relates to an upward prevention device of a material tip, and more particularly, to an upward prevention device of a material tip that can improve the quality of the product by preventing the tip of the material sent out from the finishing mill.

Typical steelmaking consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a continuous casting process to make solid iron into solid, and a rolling process to make iron into steel or wire.

The rolling process is a process of passing an intermediate material such as a slab, a bloom, etc. produced in a continuous casting process through a plurality of rotating rollers and applying a continuous force to increase or decrease the thickness thereof. The rolling process is roughly classified into hot rolling and cold rolling.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

It is an object of the present invention to provide an upward prevention device of a material end portion which can improve the quality of the product by preventing the front end portion of the material sent out from the finishing mill.

According to an aspect of the present invention, there is provided an apparatus for preventing upward of a material tip portion, including: a first frame part positioned on a side of a feed roller for transferring a material sent from a finishing mill; A first injection part provided in the first frame part and injecting a fluid toward the material; And a first moving part provided on the first frame part to adjust the distance between the first injection part and the material by moving the first frame part left and right.

Preferably, the sensor further comprises a detection sensor disposed at an exit side of the finishing mill to detect that the material is sent from the finishing mill, and the detection sensor transmits a detection signal to a controller when the transmission of the material is detected. The control unit controls the operation of the first injection unit based on the detection signal.

More preferably, the second frame portion positioned to face the first frame portion with the feed roller therebetween; A second injection part provided in the second frame part and injecting a fluid toward the material; And a second moving part provided on the second frame part to adjust the distance between the second injection part and the material by moving the second frame part left and right.

More preferably, when the transmission of the material is detected, the controller controls the operation of the second injection unit based on the detection signal transmitted from the detection sensor.

More preferably, the first moving part comprises: a first driving part provided in the first frame part; A first rotary gear part connected to the first driving part and rotated by driving of the first driving part; And a first rack gear part engaged with the first rotary gear part and guiding the left and right movement of the first rotary gear part.

More preferably, the second moving unit comprises: a second driving unit provided in the second frame unit; A second rotary gear part connected to the second driving part and rotated by driving of the second driving part; And a second rack gear part engaged with the second rotary gear part and guiding the left and right movement of the second rotary gear part.

More preferably, the first protective roller rotatably installed in the first frame portion; And a second protective roller rotatably installed in the second frame portion, wherein one end of an outer circumferential surface of the first protection roller is disposed closer to the material than one end of the first injection part, and the second One end of the outer circumferential surface of the protective roller is disposed closer to the material than the one end of the second injection portion.

More preferably, a plurality of the first protective roller is arranged in the conveying direction of the material, the first injection portion is disposed between the first protective roller, respectively, the second protective roller in the conveying direction of the material A plurality is arranged, and the second injection portion is disposed between the second protection rollers, respectively.

More preferably, the first injection unit and the second injection unit, supply pipe for receiving a fluid from an external source; A discharge pipe communicating with the supply pipe and arranged in plurality in a height direction of the material; And nozzles communicating with the discharge pipe and injecting the fluid supplied from the discharge pipe toward the material.

More preferably, the discharge pipe is inclined so that one end communicating with the nozzle is disposed below the other end communicating with the supply pipe, the nozzle is inclined downward so as to be parallel to the discharge pipe.

According to the present invention, it is possible to prevent the front end of the material sent out from the finishing mill through the high-pressure fluid injected from the injection unit can solve the problem of material quality defects such as material overlap.

In addition, since the tip of the material is prevented from rising, measurement data such as temperature, thickness, and width of the material can be accurately measured, thereby improving control performance.

In addition, since problems such as overlapping of materials can be solved, the durability of the winding equipment can be improved.

In addition, since the injection roller is prevented from colliding with the material by the protection roller, it is possible to prevent the deterioration of durability due to the collision, thereby achieving time and material cost reduction in terms of equipment maintenance and repair.

In addition, since the fluid starts to be injected from the injection unit when the raw material is discharged from the finishing mill, unnecessary use of the fluid can be prevented.

1 is a view schematically showing an upward prevention device of a material tip portion according to an embodiment of the present invention.
2 is a view showing an operating state of the upward prevention device of the material tip portion according to an embodiment of the present invention.
3 is a view illustrating a process in which the material raised upward by the upward prevention device of the material tip portion according to an embodiment of the present invention is gradually flattened.
Figure 4 is a side view schematically showing a state in which the injection portion and the protective roller is installed in the upward prevention device of the material end portion according to an embodiment of the present invention.
5 is a perspective view showing the relationship between the injection portion and the protection roller in the upward prevention device of the material end portion according to an embodiment of the present invention.
6 is a plan view showing the relationship between the injection portion and the protective roller in the upward prevention device of the material end portion according to an embodiment of the present invention.
7 is a view schematically showing an injection unit in the upward prevention device of the material end portion according to an embodiment of the present invention.
8 is a block diagram showing a control flow of the upward prevention device of the material tip portion according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the upward prevention device of the material end portion according to the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, terms to be described below are defined in consideration of the functions of the present invention, which may vary according to the intention or custom of the user, the operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a view schematically showing an upward prevention device of the material tip portion according to an embodiment of the present invention, Figure 2 is a view showing an operating state of the upward prevention device of the material tip portion according to an embodiment of the present invention, 3 is a view showing a process in which the material is gradually flattened by the upward prevention device of the material tip portion according to an embodiment of the present invention. Figure 4 is a side view schematically showing a state in which the injection portion and the protective roller is installed in the upward prevention device of the material tip portion according to an embodiment of the present invention, Figure 5 is a top prevention device of the material tip portion in accordance with an embodiment of the present invention In Figure 6 is a perspective view showing the relationship between the injection portion and the protection roller, Figure 6 is a plan view showing the relationship between the injection portion and the protection roller in the upward prevention device of the material end portion according to an embodiment of the present invention, Figure 7 is one of the present invention Figure schematically showing the injection portion in the upward prevention device of the material end portion according to the embodiment. 8 is a block diagram showing a control flow of the upward prevention device of the material tip portion according to an embodiment of the present invention.

1 to 4, the upward prevention device 1 of the material tip part according to the exemplary embodiment of the present invention may include a first frame part 10, a first injection part 20, and a first moving part 30. And a first upward preventing portion (not shown) comprising a first protective roller 40, a second frame portion 10a, a second spraying portion 20a, a second moving portion 30a, and a second protective portion. It consists of a 2nd upward prevention part (symbol abbreviation | omitted) which consists of the roller 40a.

The 1st upward prevention part is located in the right side (refer FIG. 1) of the conveyance roller R which conveys the raw material S sent from the finishing mill F, and the 2nd upward prevention part has the conveyance roller R in between. It is located in the left side of the feed roller (R) so as to face the first upward prevention portion.

The first frame portion 10 is disposed on the outlet side of the finishing mill F and is located on the right side of the feed roller R. As shown in FIG. The first frame part 10 includes a first installation frame 11, a first connection frame 12, and a first support frame 13.

The first installation frame 11 is arranged up and down a pair in the conveying direction of the material (S) with the first protective roller 40 therebetween. One end of the first protective roller 40 is hinged (h) to the first installation frame 11 of one side, the other end of the hinge (h) is coupled to the first installation frame 11 of the other side, the first installation as a whole It is rotatably installed in the frame 11.

The first spraying unit 20 is installed in the first installation frame 11 in addition to the first protective roller 40. The first injection unit 20 is installed on the first installation frame 11 in alternating manner with the first protection roller 40. That is, when the plurality of first protective rollers 40 are installed to be arranged in the conveying direction of the raw material S, in other words, in the longitudinal direction of the raw material S, on the first installation frame 11, the first spraying unit 20 is provided. ) Are installed in the first installation frame 11 to be disposed between the first protective roller 40, respectively. Like the first protective roller 40, a plurality of first spraying units 20 are installed in the first installation frame 11.

The first connection frame 12 is coupled to one end (rear end of FIG. 1) and the other end (front end of FIG. 1) of the first installation frame 11, respectively, and the feed rollers of the first installation frame 11. It extends in the direction away from (R). The first installation frame 11 and the first support frame 13 are connected by the first connection frame 12.

The outer end of the first connection frame 12 on one side (rear side) is coupled to one end (rear end) of the first support frame 13, and the outer end of the first connection frame 12 on the other side (front side) is first It is coupled with the other end (front end) of the support frame 13.

The first support frame 13 connects the first connection frame 12 on one side and the first connection frame 12 on the other side to support each first connection frame 12 so as not to shake. As a result, the durability of the first frame portion 10 is improved.

The second frame portion 10a is disposed on the outlet side of the finishing mill F and is located on the left side of the feed roller R. As shown in FIG. The second frame portion 10a includes a second installation frame 11a, a second connection frame 12a, and a second support frame 13a.

The pair of second mounting frames 11a are arranged up and down in the conveying direction of the raw material S with the second protective roller 40a interposed therebetween. One end of the second protective roller 40a is hinged (h) to the second installation frame (11a) on one side, the other end is coupled to the hinge (h) of the second installation frame (11a) on the other side, the second installation as a whole It is rotatably installed in the frame 11a.

In addition to the second protective roller 40a, the second spraying unit 20a is installed on the second installation frame 11a. The 2nd injection part 20a is installed in the 2nd installation frame 11a alternately with the 2nd protection roller 40a. That is, when the plurality of second protective rollers 40a are installed to be arranged in the conveying direction of the raw material S, in other words, in the longitudinal direction of the raw material S, on the second installation frame 11a, the second spraying unit 20a ) Are installed in the second installation frame 11a to be disposed between the second protective rollers 40a, respectively. Like the second protective roller 40a, a plurality of second spraying portions 20a are provided in the second mounting frame 11a.

The second connection frame 12a is coupled to one end (rear end of FIG. 1) and the other end (front end of FIG. 1) of the second installation frame 11a, respectively, and the feed roller of the second installation frame 11a. It extends in the direction away from (R). The second installation frame 11a and the second support frame 13a are connected by the second connection frame 12a.

The outer end of the second connection frame 12a on one side (rear side) is coupled with one end (rear end) of the second support frame 13a, and the outer end of the second connection frame 12a on the other side (front side) is second. It is coupled with the other end (front end) of the support frame 13a.

The second support frame 13a connects the second connection frame 12a on one side and the second connection frame 12a on the other side to support each second connection frame 12a so as not to shake. As a result, the durability of the second frame portion 10a is improved.

1 and 3 to 8, the first injection unit 20 is installed on the first installation frame 11, and the second injection unit 20a is installed on the second installation frame 11a. Each of the first spraying unit 20 and the second spraying unit 20a sprays a fluid toward the upper portion of the raw material S to prevent upward of the raw material S. FIG. Such fluid may be air.

A plurality of first injection units 20 are provided to be disposed between the first protective rollers 40, and a plurality of second injection units 20 are also provided to be disposed between the second protective rollers 40a. The first injection unit 20 and the second injection unit 20a each include a supply pipe 21, a discharge pipe 22, and a nozzle 23.

The supply pipe 21 receives fluid from an external source (not shown), and branches from the external source and extends between the first protective roller 40 and the second protective roller 40a, respectively.

The discharge pipe 22 communicates with the supply pipe 21, is branched into a plurality from one supply pipe 21, and is arranged side by side in the height direction of the raw material S. The discharge pipe 22 is installed in the first installation frame 11 / the second installation frame 11a by the mounting portion b.

The nozzle 23 communicates with the discharge pipe 22 and sprays the fluid supplied through the supply pipe 21 and the discharge pipe 22 toward the upper portion of the material S to prevent the material S from being upward.

In the raw material S sent from the finishing mill F, a material S having a particularly thin thickness may be upwardly generated due to a speed difference between the upper and lower work rolls of the finishing mill F, and the upwardly generated material. (S) may be more severe due to the air resistance generated during the transfer.

When the upward direction of the raw material S occurs, the upward of the raw material S is suppressed by injecting a high pressure fluid to the upper part of the raw material S through the first injection unit 20 and the second injection unit 20a. In addition, when the upward direction of the material S occurs, the degree of upward direction of the material S may be gradually decreased by continuously spraying a high pressure fluid through the first injection part 20 and the second injection part 20a. To allow the material (S) to enter the post-process in a flat state.

The discharge pipe 22 is installed to be inclined so that one end communicating with the nozzle 23 is disposed below the other end communicating with the supply pipe 21, and the nozzle 23 is inclined downward so as to be parallel to the inclined angle of the discharge pipe 22. Is formed. In this way, since the fluid is injected inclined from the upper side to the lower side along the discharge pipe 22 and the nozzle 23, the upwardly upwardly facing material (S) is gradually flattened to meet the high-pressure fluid from the upper side.

This can solve the problem of poor quality of the material (S) due to the overlap of the material (S), it is possible to block the degradation of the durability of the winding equipment generated when the overlapped material (S) is wound. Of course, as the upper end of the material S is prevented, measurement data such as temperature, thickness, and width can be accurately measured, thereby improving control performance.

3 and 8, the upward prevention device 1 of the material tip further includes a detection sensor 51. The detection sensor 51 is disposed at the outlet side of the finishing mill F to detect that the raw material S is sent from the finishing mill F.

The detection sensor 51 transmits a detection signal to the controller 50 when transmission of the raw material S is detected at the outlet side of the finishing mill F. FIG. The controller 50 controls the operations of the first injection unit 20 and the second injection unit 20a based on the transmitted detection signal. That is, since the control unit 50 operates the first injection unit 20 / the second injection unit 20a only when the delivery of the raw material S is detected, the control unit 50 can suppress the injection of the fluid in an unnecessary situation. .

1 to 4 and 8, the first moving part 30 is coupled to the center portion of the first support frame 13, and the first injection part 20 is moved by moving the first support frame 13 left and right. ) And the distance between the material (S). The first moving part 30 includes a first driving part 31, a first rotary gear part 32, and a first rack gear part 33, and the operation of the first moving part 30 is controlled by the controller 50.

The first driving unit 31 is installed in the first support frame 13 to generate power for rotating the first rotary gear unit 32. The first driving unit 31 includes a driving motor generating power, and supplies power generated by being connected to the first rotating gear unit 32 to the first rotating gear unit 32. The operation of the first driving unit 31 is controlled by the control unit 50.

The first rotary gear part 32 is connected to the first driving part 31 and rotated by the power generated by the first driving part 31. The first rotary gear part 32 may be a pinion gear.

The first rack gear part 33 is configured to engage with the first rotary gear part 32 to guide the left and right movement of the first rotary gear part 32 according to the rotation of the first rotary gear part 32. To this end, the first rack gear part 33 is provided with a guide part (not shown) to prevent the separation of the first rotary gear part 32.

The first rack gear portion 33 is fixed to the support (W). The support W may be another adjacent device capable of preventing shaking of the first rack gear part 33 when the first moving part 30 is operated. For example, it may be a roller table for supporting the feed roller (R).

In the present exemplary embodiment, the first driving unit 31 is installed in the first support frame 13 and the first rack gear unit 33 is illustrated as being fixed to the support W, but is not limited thereto. Accordingly, the first driving part 31 is fixed to the support W, and the first rack gear part 33 is configured to be installed on the first support frame 13. Of course, various modifications are possible.

 The first protective roller 40 is hinged (h) to each of the pair of first installation frame 11 is rotatably installed on the first installation frame (11). One end of the outer circumferential surface of the first protective roller 40 is disposed closer to the material S than the nozzle 23.

Therefore, even when the raw material S is abnormally transferred, the raw material S comes into contact with the first protective roller 40 before colliding with the first spraying unit 20, so that the first spraying unit is formed by the raw material S. 20 can be prevented from being damaged.

In addition, since the first protective roller 40 is rotatably installed on the first installation frame 11, the material S does not decrease even when the material S is in contact with the first protective roller 40.

The second moving part 30a is coupled to the center portion of the second support frame 13a and adjusts the distance between the second injection part 20a and the material S by moving the second support frame 13a from side to side.

The second moving part 30a includes a second driving part 31a, a second rotary gear part 32a, and a second rack gear part 33a, and the operation is controlled by the controller 50.

The second driving part 31a is installed in the second support frame 13a to generate power for rotating the second rotary gear part 32a. The second driving part 31a includes a driving motor generating power, and supplies power generated by being connected to the second rotating gear part 32a to the second rotating gear part 32a. The operation of the second driver 31a is controlled by the controller 50.

The second rotary gear part 32a is connected to the second driving part 31a and rotated by the power generated by the second driving part 31a. The second rotary gear part 32a may be a pinion gear.

The second rack gear part 33a is configured to engage with the second rotary gear part 32a to guide the left and right movement of the second rotary gear part 32a according to the rotation of the second rotary gear part 32a. To this end, the second rack gear part 33a is provided with a guide part (not shown) to prevent the separation of the second rotary gear part 32a.

The second rack gear portion 33a is fixed to the support W. The support W may be another adjacent device capable of preventing shaking of the second rack gear part 33a when the second moving part 30a is operated. For example, it may be a roller table for supporting the feed roller (R).

In the present exemplary embodiment, the second driving part 31a is installed on the second support frame 13a and the second rack gear part 33a is fixed to the support W, but is not limited thereto. Therefore, the second driving part 31a is fixed to the support W, and the second rack gear part 33a is configured to be installed on the second support frame 13a. Of course, various modifications are possible.

 The second protective roller 40a is hinged to each of the pair of second installation frames 11a and is rotatably installed on the second installation frame 11a. One end of the outer circumferential surface of the second protective roller 40a is disposed closer to the material S than the nozzle 23.

Therefore, even when the material S is abnormally transferred, the material S comes into contact with the second protective roller 40a before colliding with the second injection part 20a. 20a can be prevented from being damaged.

In addition, since the second protective roller 40a is rotatably installed on the second installation frame 11a, even if the material S is in contact with the second protective roller 40a, the feeding speed does not decrease.

The controller 50 may individually control the operations of the first moving unit 30 and the second moving unit 30a. In the case where the width of the material S is wide, the upward degree of the left and right sides of the front end of the material S may be different. At this time, the pressure of the fluid applied to the left and right of the front end of the material (S) should be different.

When the fluid is injected at the same pressure, the pressure of the fluid applied to the material S increases as the distance between the first injection part 20 / the second injection part 20a and the material S is closer. Therefore, when the left side of the front end portion of the material S is more severe than the right side, the second injection unit 20a is operated so that the second moving unit 30a is closer to the material S than the first injection unit 20. The pressure of the fluid applied by the second injection unit 20a is higher than the pressure of the fluid applied by the first injection unit 20. Through this, it is possible to restrain the upward evenly on the left and right sides of the material (S) distal end portion, it is possible to return the raised material (S) to an evenly flat state.

Hereinafter, the operation principle of the upward prevention device of the material end portion according to an embodiment of the present invention.

The raw material S sent out from the finishing mill F is conveyed by the feed roller R to a later process. At this time, the upward prevention device 1 of the distal end portion of the finishing mill (F) to prevent the upward of the material (S) is disposed.

The upward movement may occur in the raw material S sent from the finishing mill F by a speed difference between the upper and lower work rolls of the finishing mill F. FIG. The first injection unit 20 and the second injection unit 20a suppress the upward movement of the raw material S by injecting a high pressure fluid toward the upper portion of the raw material S.

In addition, when the upward direction of the raw material S occurs, a plurality of high pressures are applied to the raw material S at various points through the first injection unit 20 and the second injection unit 20a which are arranged in a plurality along the conveying direction of the raw material S. Since the fluid is injected, the upward of the material S is corrected.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary and will be understood by those of ordinary skill in the art that various modifications and equivalent other embodiments are possible. will be.

In addition, the above-described prevention device of the top end of the material disposed on the outlet side of the finishing mill as an example, but this is merely illustrative, the technical idea of the present invention can be applied to other equipment other than the finishing mill. Accordingly, the true scope of the present invention should be determined by the following claims.

10: first frame portion 11: the first mounting frame
12: first connection frame 13: first support frame
20: first injection part 21: supply pipe
22: discharge pipe 23: nozzle
30: first moving part 31: first driving part
32: first rotating gear part 33: first rack gear part
40: first protective roller 50: control unit

Claims (10)

A first frame part located on a side of a feed roller for transferring the material sent out from the finishing mill;
A first injection part provided in the first frame part and injecting a fluid toward the material;
A first moving part provided in the first frame part and adjusting the distance between the first injection part and the material by moving the first frame part left and right;
A second frame portion positioned to face the first frame portion with the feed roller therebetween;
A second injection part provided in the second frame part and injecting a fluid toward the material;
A second moving part provided in the second frame part and adjusting the distance between the second injection part and the material by moving the second frame part left and right; And
It is disposed on the exit side of the finishing mill and includes a detection sensor for detecting that the material is sent from the finishing mill,
The detection sensor transmits a detection signal to the control unit when the transmission of the material is detected, the control unit controls the operation of the first injection unit and the second injection unit based on the detection signal,
A first protective roller rotatably installed in the first frame part; And
Further comprising a second protective roller rotatably installed in the second frame portion,
One end of the outer circumferential surface of the first protective roller is disposed closer to the material than the one end of the first spraying part, and one end of the outer circumferential surface of the second protective roller is disposed closer to the material than the one end of the second spraying part. Upward prevention device of the material tip, characterized in that.
delete delete delete The method of claim 1,
The first moving unit may include a first driving unit installed in the first frame unit;
A first rotary gear part connected to the first driving part and rotated by driving of the first driving part; And
And a first rack gear portion engaged with the first rotary gear portion and guiding the left and right movement of the first rotary gear portion.
The method of claim 5,
The second moving unit may include a second driving unit installed in the second frame unit;
A second rotary gear part connected to the second driving part and rotated by driving of the second driving part; And
And a second rack gear part engaged with the second rotary gear part and guiding the left and right movement of the second rotary gear part.
delete The method of claim 1,
A plurality of the first protective roller is arranged in the conveying direction of the material, the first injection portion is disposed between the first protective roller, respectively,
A plurality of the second protective roller is arranged in the conveying direction of the material, the second injection portion is prevented upward of the material tip portion, characterized in that disposed between each of the second protective roller.
9. The method of claim 8,
The first injection unit and the second injection unit, supply pipe for receiving a fluid from an external source;
A discharge pipe communicating with the supply pipe and arranged in plurality in a height direction of the material; And
And a nozzle communicating with the discharge pipe and injecting the fluid supplied from the discharge pipe toward the material, respectively.
10. The method of claim 9,
The discharge pipe is installed to be inclined such that one end communicating with the nozzle is disposed below the other end communicating with the supply pipe,
And the nozzle is inclined downward to be parallel to the discharge pipe.

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