KR101714919B1 - Rolling process apparatus, apparatus for joining rolling materials and method for controlling endless rolling process - Google Patents

Abstract

The present invention relates to a rolling apparatus, comprising: an auxiliary roller rolling a plurality of metallic materials to have predetermined thickness; a joining portion joining or passing the plurality of metallic materials passing through the auxiliary roller based on an operation mode; and a finish-roller rolling the metallic materials, joined by the joining portion, to have final thickness. The joining portion comprises: a measurement portion measuring at least one transmission speed among the plurality of metallic materials passing through the auxiliary roller; and a controlling portion determining the operation mode based on the transmission speed measured by the measurement portion, controlling an operation of the joining portion. Accordingly, the present invention may prevent a collision between a preceding material and a following material during a rolling process.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling process apparatus, a rolling material joining apparatus, and a continuous continuous rolling control method,

The present invention relates to a rolling process apparatus, a rolling material joining apparatus, and a continuous continuous rolling control method.

Generally, the rolling process can transport a plurality of metal materials side by side. Here, when the distance between the plurality of metal materials is not controlled, collision between a plurality of metal materials may occur. As a result, a failure may occur in the rolling process.

Usually, the rolling process involves a number of detailed processes, so that it can be significantly delayed by a failure in one process.

Korean Patent Application No. 1998-0024272

An embodiment of the present invention provides a rolling process apparatus, a rolling material joining apparatus, and a continuous continuous rolling control method.

A rolling process apparatus according to an embodiment of the present invention includes: a rough rolling unit for rolling a plurality of metal materials to a predetermined thickness; A joining part for joining or passing a plurality of metal materials passed through the rough rolling part based on an operation mode; And a finishing rolling section for rolling the metal material joined through the joining section to a final thickness; . ≪ / RTI >

The joining portion may include: a measuring portion that measures a conveying speed of at least one of the plurality of metal materials having passed through the rough rolling portion; And a control unit for determining the operation mode based on the transport speed measured by the measurement unit and controlling the operation of the joint unit. . ≪ / RTI >

When the difference between the feed speed measured by the measuring unit and the reference speed is greater than a predetermined speed and is maintained for a predetermined time, the joining unit does not join the plurality of metal materials passed through the rough rolling unit The operation of the joint can be controlled.

For example, when the deviation of the conveying speed measured by the measuring unit is larger than a predetermined deviation, the control unit can pass a plurality of metal materials passed through the rough rolling unit without joining them.

For example, the rolling process apparatus may include: a coil box for coiling and uncoiling a plurality of metal materials having passed through the rough rolling section and transferring the uncoiling to the joining section; And a winding section for cutting the finally rolled metal material by the finishing rolling section and winding the cut metal material, respectively; As shown in FIG.

A rolling material joining apparatus according to an embodiment of the present invention includes: a measuring unit for measuring a conveying speed of a preceding material and a following material, respectively; An overlap wrapper for overlapping the preceding material and the following material while adjusting a feed rate of the preceding material and the following material based on the measurement value in the measurement unit; An adapter for joining portions of the preceding material and the following material overlapping each other in a solid-phase bonding manner; A deburring device for removing a crop generated from the metal material joined by the adapter; And stopping the operation of the over-wrapper, the adapter, and the de-clog removing unit when the difference between at least one of the transport speeds measured by the measuring unit and the reference speed is greater than a predetermined speed and continues for a predetermined time, A control unit for passing the ashes; . ≪ / RTI >

The continuous continuous rolling process control method according to an embodiment of the present invention is a continuous continuous rolling process control method for performing a rough rolling process, a coil box process, a joining process, a finishing rolling process and a winding process for a plurality of metal materials in sequence The method comprising: measuring a feed rate of a preceding or succeeding material being conveyed when the plurality of metal materials pass through the joining process; Comparing the measured transport speed with a preset reference speed; And transferring the preceding material and the following material to the finishing rolling process without performing the joining process when the difference between the measured conveying speed and the reference speed is greater than a predetermined speed and continues for a predetermined time ; . ≪ / RTI >

According to the present invention, it is possible to prevent collision between the preceding material and the following material in the rolling process.

1 is a view showing a rolling process apparatus according to an embodiment of the present invention.
2 is a view showing a rolling material bonding apparatus according to an embodiment of the present invention.
FIG. 3 is a view for explaining a joining process of the joint shown in FIG. 2. FIG.
Fig. 4 is a view for explaining overlapping shown in Fig. 3. Fig.
FIG. 5 is a flowchart illustrating an operation process of the measurement unit and the control unit shown in FIG. 2. FIG.
6 is a flowchart illustrating a continuous continuous rolling control method according to an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

1 is a view showing a rolling process apparatus according to an embodiment of the present invention.

1, a rolling process apparatus according to an embodiment of the present invention includes a heating unit 100, a large rolling unit 200, a rough rolling unit 300, a coil box 400, a joining unit 500, A finishing rolling section 600, a water cooling section 700, and a winding section 800.

The heating unit 100 can heat the metal material.

The descaler 200 can remove the oxide film generated in the metal material during the heating process.

The rough rolling unit 300 can roll a metal material to a predetermined thickness as a preliminary step of final rolling.

The coil box 400 may be coiling and uncoiling with respect to the metal material. Thus, the temperature uniformity of the metal material can be ensured.

The bonding portion 500 can bond a plurality of metal materials to each other. Distance control between a plurality of metal materials may be required during the bonding process. Here, when the distance control fails, a collision between a plurality of metal materials may occur.

Therefore, the joining part 500 can determine whether to join the plurality of metal materials by considering a situation where a disturbance in distance control occurs. That is, the joining part 500 can transfer a plurality of metal materials to the yarn rolling part 600 without joining the joining part 500 to the yarn rolling part 600 by bonding the plurality of metal materials to each other based on the operation mode. Thus, collision between a plurality of metal materials can be prevented.

The finishing rolling section 600 can roll the bonded metal material to a final thickness or each of the unbonded metal materials to a final thickness.

The water-cooled portion 700 can cool the rolled metal material.

The winding portion 800 can cut a portion joined by the joint portion 500 in the rolled metal material and wind the cut metal material, respectively. If the joining part 500 does not bond a plurality of metal materials to each other, the winding part 800 can wind each metal material without cutting.

2 is a view showing a rolling material bonding apparatus according to an embodiment of the present invention.

2, the rolled material joining apparatus 500 includes a feed controller 510, an over-wrapper 520, an adapter 530, a lower crop cutter 540, an upper crop cutter 550, a measuring unit 560 And a control unit 570.

The transfer controller 510 can control the transfer speeds of the preceding materials and the trailing materials of the plurality of metal materials.

The overlap wrapper 520 can overlap each other while adjusting the feed rates of the preceding and succeeding materials. Here, the overlap means that the preceding material and the following material overlap each other as viewed from above. The height of the tail of the preceding material or the height of the top of the following material can be temporarily adjusted with respect to each other for overlapping.

Adjuster 530 can bond portions where the preceding and succeeding materials overlap each other in a solid-phase bonding manner.

The lower and upper crop cutters 540 and 550 can remove crops from the metal material bonded by the adapter 530. Here, a crop refers to a portion protruding upward and downward from a bonded metal material.

The measuring unit 560 can measure the feed rate of at least one of the preceding and succeeding materials. For example, the measuring unit 560 may irradiate the laser beam to the preceding material and the trailing material to measure the conveying speed. The measured conveyance speed can be used not only for controlling the conveyance speed of the conveyance controller 510 and the over-wrapper 520 but also for determining the measurement adequacy of the measuring unit 560. [

For example, in a state in which the feed controller 510 and the over-wrapper 520 are set to control the feed speeds of the preceding and succeeding members in accordance with the reference speed, the feed rate measured by the measuring unit 560 is larger than the reference speed can be different. At this time, the measurement suitability of the measuring unit 560 can be evaluated as bad.

If the measurement accuracy of the measuring unit 560 is poor, the feed rate control for the preceding material and the trailing material may become unstable. Accordingly, the possibility of collision between the preceding material and the following material can be increased.

When the difference between at least one of the transport speeds measured by the measuring unit 560 and the reference speed is greater than a predetermined speed and continues for a predetermined time with the predetermined speed being exceeded, the control unit 570 controls the overlapper 520, the adapter 530, And top crimp removers 540 and 550 can be stopped and the leading and trailing materials can be passed. That is, when the measurement value of the measurement unit 560 is different from the normal measurement value, the control unit 570 determines that the measurement accuracy of the measurement unit 560 is bad and does not perform the joining between the preceding material and the following material.

The control unit 570 can pass the preceding material and the following material without joining when the deviation of the conveying speed measured by the measuring unit 560 is larger than a predetermined deviation. When the measurement accuracy of the measurement unit 560 is poor, the measured value of the measurement unit 560 may include noise. The greater the noise, the greater the deviation of the conveyance speed measured by the measuring unit 560. Therefore, the controller 570 may check the noise level and not perform the joining between the preceding material and the following material.

Accordingly, the control unit 570 can prevent a collision between the preceding material and the following material in advance.

FIG. 3 is a view for explaining a joining process of the joint shown in FIG. 2. FIG.

Referring to FIG. 3 (a), the preceding material 10 and the following material 20 can be subjected to upward and downward forces by the first over-wrapper 511 and the second over-wrapper 512.

Referring to FIG. 3 (b), it can be overlapped in a state in which a height difference is generated between the preceding article 10 and the following article 20.

3 (c), the joint includes a joint frame 531, a knife 532 and a clamp 533 to join the portion 10a of the preceding material and the portion 20b of the following material in a solid-phase bonding manner . Here, the solid-phase bonding refers to bonding that occurs without melting by using the pressing and heating energy.

Referring to Fig. 3 (d), the lower crop 10b due to the preceding material and the upper crop 20a due to the trailing material can be removed from the joined metal material 30.

Fig. 4 is a view for explaining overlapping shown in Fig. 3. Fig.

Referring to FIG. 4, the distance between the leading material 10 and the trailing material 20 may be overlapped while the distance d between the leading material 10 and the trailing material 20 is maintained.

Here, the distance d between the preceding article 10 and the following article 20 may be a criterion for judging whether the measured value of the feed rate is appropriate or not.

That is, the rolling material joining apparatus according to an embodiment of the present invention can determine that the measured value is improper when the difference between the measured conveying speed and the reference speed is greater than a predetermined speed and continues for a predetermined time. Here, the product of the predetermined speed and the predetermined time may be a distance d between the preceding material 10 and the following material 20.

Hereinafter, a continuous continuous rolling control method according to an embodiment of the present invention will be described. Since the continuous continuous rolling control method can be performed in the rolling process apparatus and the rolling material joining apparatus described above with reference to FIGS. 1 to 4, the same or corresponding contents to those described above will not be described in duplicate.

5 is a flowchart illustrating a continuous continuous rolling control method according to an embodiment of the present invention.

5, the continuous continuous rolling control method according to an embodiment of the present invention includes a heating furnace process S10, a rough rolling process S20, a coil box process S30, (S40), a joining step (S50), a finishing rolling step (S60), a water cooling step (S70), and a winding step (S80).

The heating furnace process S10 may be the same as the process performed by the heating unit shown in Fig. The rough rolling step S20 may be the same as the rough rolling step shown in Fig. The coil box process S30 may be the same as the process performed by the coil box shown in Fig. The bonding step (S50) may be the same as the step performed by the rolling material bonding apparatus shown in Fig. The finishing rolling process (S60) may be the same as the process performed by the finishing rolling section shown in Fig. The water-cooling process S70 may be the same as the process performed by the execution unit shown in FIG. The winding step S80 may be the same as the winding step performed by the winding part shown in Fig.

Here, in the case where it is confirmed that the measurement abnormality is generated by the step S40 of confirming whether or not the measurement of the material feed rate is abnormal, the bonding step (S50) may be omitted.

FIG. 6 is a flowchart showing the bonding process shown in FIG. 5 in detail.

Referring to FIG. 6, the rolling material joining apparatus according to an embodiment of the present invention measures the feed rate of the preceding material and the following material (S10), compares the measured speed with the reference speed (S20) (S30). If the difference speed is equal to or greater than v, the preceding and succeeding materials are passed (S40). If the difference speed is not equal to or greater than v, It is possible to overlap the ashes and the trailing material (S50), join the preceding material and the trailing material (S60), and remove the crop (S70).

For example, v may be 0.5 m / s, and s may be 0.4 s. For overlapping, the distance between the preceding and succeeding materials can be controlled to be 0.2 m.

The present invention is not limited to the above-described embodiments and the accompanying drawings. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be self-evident.

100:
200: descaler
300: rough rolling section
400: Coil box
500:
510:
520: Overlapper
530: Adapter
540: Bottom crop cutter
550: upper crop cutter
560:
570:
600: Finishing rolling section
700: water-cooled part
800:

Claims (8)

A rough rolling section for rolling a plurality of metal materials to a predetermined thickness;
A joining part for joining or passing a plurality of metal materials passed through the rough rolling part based on an operation mode; And
A finishing rolling section for rolling the metal material joined through the joining section to a final thickness; Lt; / RTI >
The joining portion
A measuring unit for measuring a conveying speed of at least one of the plurality of metal materials passed through the rough rolling unit; And
A control unit for determining the operation mode based on the transport speed measured by the measurement unit and controlling the operation of the joint; Lt; / RTI >
Wherein the control unit causes the plurality of metal materials passed through the rough rolling unit to pass without being joined when the difference between the feed speed measured by the measuring unit and the reference speed is greater than a predetermined speed and continues for a predetermined time The operation of the joining portion is controlled.
delete The method according to claim 1,
Wherein the control unit passes the plurality of metal materials passed through the rough rolling unit without bonding when the deviation of the conveying speed measured by the measuring unit is larger than a predetermined deviation.
The connector according to claim 1,
An overlap wrapper for overlapping the plurality of metal materials having passed through the rough rolling part while adjusting a feed rate of the preceding material and the following material;
An adapter for joining portions of the preceding material and the following material overlapping each other in a solid-phase bonding manner; And
A deburring device for removing a crop generated from the metal material joined by the adapter; Further comprising:
Wherein the control unit controls whether the over-wrapper, the adapter, and the defroster are operated based on the operation mode.
The method according to claim 1,
A coil box for coiling and uncoiling a plurality of metal materials having passed through the rough rolling part and transferring the coils to the joint; And
A winding section for cutting the finally rolled metal material by the finishing rolling section and winding the cut metal material, respectively; Further comprising:
A measuring unit for measuring a conveying speed of the preceding material and the succeeding material to be conveyed, respectively;
An overlap wrapper for overlapping the preceding material and the following material while adjusting a feed rate of the preceding material and the following material based on the measurement value in the measurement unit;
An adapter for joining portions of the preceding material and the following material overlapping each other in a solid-phase bonding manner;
A deburring device for removing a crop generated from the metal material joined by the adapter; And
When the difference between at least one of the transport speeds measured by the measuring unit and the reference speed is greater than a predetermined speed and continues for a predetermined time, the operation of the over-wrapper, the adapter and the deburring unit is stopped, A control unit for passing the control signal; And the rolling material joining device.
A continuous continuous rolling process control method for performing a rough rolling process, a coil box process, a joining process, a finishing rolling process and a winding process for a plurality of metal materials in order,
Measuring a feed rate of the preceding or succeeding material being conveyed when the plurality of metal materials passes through the joining process;
Comparing the measured transport speed with a preset reference speed; And
Rolling the preceding material and the following material to the finishing rolling process without performing the joining process when the difference between the measured conveying speed and the reference speed is greater than a predetermined speed and continues for a predetermined time; Wherein the continuous rolling process control method comprises:
8. The method of claim 7,
The step of controlling the distance between the preceding material and the following material such that the product of the predetermined speed and the predetermined time is the distance between the preceding material and the following material when the preceding material and the succeeding material pass the joining step Wherein the continuous rolling process control method comprises:

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