KR20050010431A - Apparatus for cooling roll - Google Patents

Abstract

PURPOSE: To provide a rolling roll cooling apparatus that cools a rolling roll promptly and uniformly by cooling the rolling roll while rotating the rolling roll and measures surface shape of the rolling roll according to temperature variation in realtime, thereby improves operation efficiency and reduces working process. CONSTITUTION: The apparatus for cooling rolling roll comprises a flat stand; movable arms(200a,200b) suspended on the stand in such a shape that the arms are oppositely directed to each other; an arm transfer part(300) mounted on the stand to move the arms in a plane direction of the stand; a cooling part(400) mounted on the arms to cool a rolling roll positioned between the arms; a rolling roll rotary part(500) comprising rollers(508,510) mounted on the arms so that the rolling roll is rotated by contact of the rollers with the surface of the rolling roll, and a motor(502) for driving the rollers; and a sensor unit mounted on the arm(200b) to measure temperature of the rolling roll.

Description

Rolled roll chiller {APPARATUS FOR COOLING ROLL}

The present invention relates to a rolling roll cooling apparatus that cools the drawn rolls after finishing hot rolling, and more particularly, to cooling the rolling rolls while rotating the rolling rolls to cool them quickly and uniformly, and to adjust the surface shape of the rolling rolls according to temperature changes. The present invention relates to a rolling roll cooling apparatus capable of increasing work efficiency and shortening work processes by measuring in real time.

In general, in the hot rolling process of a steel mill, finish milling is a process of obtaining a product satisfying a desired condition by entering a high temperature material between rolling rolls using a plurality of rolling mills or rolling rolls rotated at high speed and applying pressure. to be. Rolling rolls used in this process are an important factor in determining the surface quality of the final product, and the shape and roughness of the surface are strictly required. However, when used in a rolling operation for a certain period of time, since the wear and damage as the temperature and surface fatigue increases, it is regularly replaced using a rolling roll replacement device.

The rolled roll thus replaced must be cooled before the polishing operation because the temperature is increased by friction with the hot rolled material, and the appropriate temperature is preferably the atmospheric temperature.

The rolled roll is usually cooled by forced water cooling, and an example of such a rolled roll cooling apparatus according to the prior art is shown in FIG. Referring to FIG. 1, a plurality of nozzles installed on a coolant line 4 after placing a set of upper and lower rolling rolls R1 and R2 having completed rolling operations on a platform 2 of a cooling station by a crane or the like not shown. The cooling water 8 is injected upward through 6 to cool the surfaces of the rolling rolls R1 and R2 with the falling water.

In such a method, since the cooling capacity is improved by installing the nozzle 6 as much as possible so that the coolant 8 can be injected in large quantity, the coolant is used in large quantities and the coolant 8 collides with the directly contacting surface. The difference in temperature of the cooling water 8 inevitably arises. In addition, since the nozzle 6 is installed and used arbitrarily, there is a disadvantage in that a portion which is not cooled in the rolling rolls R1 and R2 occurs depending on the angle and the spraying state of the nozzle 6.

When polishing is performed using the rolling rolls R1 and R2 in a non-uniformly cooled state, the cylindricality and roundness of these rolling rolls R1 and R2 become poor, resulting in a product. The surface flatness of is poor. In particular, a separate cooling space, that is, a cooling field, is required for cooling the rolls R1 and R2, and it is required to be transported to this cooling field.

In addition, the surface shape of the rolling rolls is measured for both the heated state and the cooled state at the atmospheric temperature. For this purpose, the rolled state in the heated state is transported to the polishing machine to measure the surface shape and transported to the cooling station to the atmospheric temperature. After cooling, it is transported to the grinder again to repeat the process of measuring the surface shape. It is replaced by rolling roll replacement-> transported by rolled roll grinder-> surface shape measurement-> transported by rolled roll chiller-> water-cooled-> transported by rolled roll grinder-> surface shape measurement and polishing-> transported by rolled roll standby- Results in complex steps performed in the order of reuse.

An example of a rolling roll cooling apparatus according to the prior art for solving this problem is disclosed in Korean Patent Application No. 2001-30591 entitled "Temperature Correcting Cooling Device for Hot Rolling Rolls" .

1 is a perspective view showing the cooling device presented in the above document. Referring to FIG. 1, the conventional cooling apparatus includes a cooling water supply device 5, a roll stacking device 6, a cooling water variable injection device 7, a temperature sensor 8, a roll driving device 9, and a temperature and The shape measurement recording apparatus 10 is comprised. The cooling water supply device 5 is configured by inserting a pump into the cooling water tank and assembling a connecting pipe 5-2, a corrugated pipe 5-3, and a supply pipe 5-4.

The rolled roll as shown in FIG. 1 inserts the end of the roll into the groove of the roll drive 9 to be placed in the roll stacker 6 and then sprays the coolant from the side while rotating the rolled roll by the drive 9. And, by measuring the temperature using the temperature sensor 8, the cooling water is adjusted by the variable injection device 1 according to the temperature difference so that uniform cooling can be achieved.

However, such a device must have a cooling space, and can not solve the conventional problems in the work process. In addition, the driving device 9 for rotating the rolling roll is installed on the front surface to prevent the rolling roll replacement operation by a crane (not shown). In addition, water is excessively consumed and there is a problem that the above process must be repeated in order to measure the surface shape of the rolling roll.

Accordingly, the present invention has been made to solve the above-described problems of the prior art, an object of the present invention is to provide a rolling roll cooling apparatus that can be cooled quickly and uniformly by cooling while rotating the rolling roll.

Another object of the present invention is to provide a rolling roll cooling apparatus capable of measuring in real time the surface shape of the rolling roll according to the temperature change.

Still another object of the present invention is to provide a rolling roll cooling apparatus capable of increasing work efficiency and shortening a work process.

1 is a perspective view showing an example of a rolling roll cooling apparatus according to the prior art.

2 is a perspective view showing another example of a rolling roll cooling apparatus according to the prior art.

3 is an overall perspective view of a rolling roll cooling apparatus according to a preferred embodiment of the present invention.

4 is an exploded perspective view of the stand and the arm transfer unit of FIG.

5 is an exploded perspective view of the left arm and associated portion of FIG. 3;

6 is an exploded perspective view of the right arm and associated parts of FIG. 3;

7 is a perspective view illustrating a measurement unit mounted on the right arm.

8 is an exploded perspective view of FIG. 7.

9 is a cross-sectional view taken along line B-B of FIG. 7.

10 is a block diagram illustrating an entire measurement unit.

FIG. 11 is a cross-sectional view taken along the line A-A of FIG. 3.

FIG. 12 is a front view of FIG. 3 showing a state where rolling rolls are positioned between arms. FIG.

It is a flowchart explaining the operation | movement of the rolling roll cooling apparatus of this invention.

<Explanation of symbols of main parts in drawings>

200: arm 402: water sprayer

404, 428: coolant line 420: tank for collecting coolant

508: drive roller 510: driven roller

670: sensor unit R: rolled roll

Rolling roll cooling apparatus provided according to the features of the present invention for achieving the above object of the present invention is a flat stand; A movable arm suspended from the stand in opposed form; An arm transfer part mounted to the stand to move the arm in a plane direction of the stand; A cooling unit mounted to the arm to cool the rolling roll located between the arms; A rolling roll rotating part having a roller mounted to the arm and a motor for driving the roller to rotate the rolling roll by contact with a roll surface; And a sensor unit mounted to the arm to measure the temperature of the rolling roll.

Preferably, the sensor unit is provided with a displacement sensor for measuring the surface shape of the rolling roll.

Various features and advantages of the present invention will be described in detail as follows in connection with the accompanying drawings. In the drawings, FIG. 3 is an overall perspective view of a rolling roll cooling apparatus according to a preferred embodiment of the present invention, FIG. 4 is an exploded perspective view of the stand and arm transfer unit of FIG. 3, and FIG. 6 is an exploded perspective view of the right arm and related parts of FIG. 3, FIG. 7 is a perspective view showing a measurement unit mounted on the right arm, FIG. 8 is an exploded perspective view of FIG. 7, and FIG. 9 is of FIG. 7. 10 is a cross-sectional view taken along the line BB, FIG. 10 is a block diagram illustrating the entire measurement unit, FIG. 11 is a cross-sectional view taken along the line AA of FIG. 3, and FIG. 12 is a front view of FIG. 13 is a flowchart illustrating the operation of the rolling roll cooling apparatus of the present invention.

The rolling roll cooling apparatus of the present invention shown in FIG. 3 is a stand 100 fixed to a workplace ceiling (not shown) of a factory or the like by four fixing stands 102, a pair movably suspended to the stand 100. Opposing arms 200a and 200b of the arm between the arms 200a and 200b disposed above the stand 100 to slide the arms 200a and 200b along the stand 100. A cooling unit 400 mounted to the arm 200a to cool the sprayed water by spraying the cooling water on the rolling roll R (see FIG. 12); Rolling roll rotating part 500 having a roller 508 mounted to the arm 200a and a motor 502 for driving the roller 508 so as to rotate the rolling roll R by contact with the roll surface. ; And a measuring unit 600 mounted to the arm with a temperature sensor 672 for measuring the temperature of the rolling roll R and a displacement sensor 678 for measuring the surface state of the rolling roll R. .

First, the stand 100 and the arm transfer part 300 mounted thereon will be described. The stand 100 includes a flat rectangular plate 102 having four rectangular holes 106a, 106b, 106c, and 106d formed therein. Have A pair of rails 302 are provided at both sides of these rectangular holes 106a-106d, and sliding blocks 304a, 304b, 304c, and 304d are coupled to these rails 302, respectively. That is, the groove 306 at the bottom of the sliding blocks 304a-304d slidably accommodates the rail 302. A first support bar 308a is fastened between the first and second sliding blocks 304a and 304b and assembled to slide together with these sliding blocks 304a and 304b. On the other hand, the second support bar 308b is fastened between the third and fourth sliding blocks 304c and 304d and assembled to slide together with these sliding blocks 304c and 304d.

Screw holes 310a and 310b are formed in the center of these support bars 308a and 308b, respectively, and through holes 312 are formed in both of these screw holes 310a and 310b.

The screws 316a and 316b of the screw shaft 314 are fastened to the screw holes 310a and 310b, for example, a left hand thread is formed in the left part 316a and a right hand thread is formed in the right part 316b. One end of the screw shaft 314 passing through the screw hole 310a is coupled to the bearing block 318a via the bearing 320, which is mounted on the plate 102 of the stand 100. It is. The intermediate portion 316c between the screws 316a and 316b of the screw shaft 314 is coupled to the intermediate bearing block 322 which is screwless and is also mounted to the plate via a bearing. The other end of the screw shaft 314 passing through the screw hole 310b is also coupled to the shaft of the motor 324 behind the bearing block 318b through the bearing block 318b via the bearing.

Meanwhile, the guide shaft 330 penetrates through the through holes 312 of the support bars 310a and 310b, respectively, so that both ends and the intermediate portion are supported by the end bearing block 326 and the intermediate bearing block 328, respectively.

In this configuration, when the screw 314 is rotated by the operation of the motor 324, the support bars 310a and 310b and the sliding blocks 304a-304d coupled thereto slide along the rails 302.

Hereinafter, the arms 200a and 200b will be described. The four pillars 202a, 202b, 202c, and 202d of the arms 200a and 200b are coupled to the sliding blocks 304a to 304d at their upper ends, respectively. That is, the four pillars 202a-202d are coupled to the underside of the sliding blocks 304a-304d while passing through the four holes 106a-106d of the stand plate 102, and thus the sliding blocks 304a-304d as described above. ) Slides, the pillars 202a-202d and the arms 200a, 202b also move in the same direction.

The interior of the pillars 202a-202d forms a storage space 204 for accommodating the belt 310 and the like, which will be described later, and is partially open to facilitate the storage of the components stored therein.

Hereinafter, the cooling unit 400 will be described with reference to FIGS. 3 and 5. A pair of water injectors 402a and 402b are disposed up and down between the pair of pillars 202a and 202b so that both ends are coupled to the pillars 202a and 202b and assembled horizontally. Each of the water injectors 402a and 402b has a plurality of nozzles 406 formed at predetermined intervals and at an angle on the front surface for injecting coolant to the rolling roll R, and the stand plates (404) through the coolant line 404. Cooling water is supplied from the outlet 444 of the cooler 440 mounted to the 102. At this time, the coolant line 404 is connected to the outlet 444 of the cooler 440 through a plurality of swivel joints 446.

The water injectors 402a and 402b have both ends inserted into the receiving space 204 via bearings in the holes 206 of the pillars 202a and 202b. Gears 408a and 408b are coupled to both ends of the water injectors 402a and 402b inserted into the storage space 204, and these gears 408a and 408b are coupled to be interlocked by the belt 410. On the other hand, the shaft 414 of the angle adjustment motor 412 mounted to the column 202b by the bracket 418 is opposite to the water sprayer 402a of the column 202b. It is inserted into the receiving space 204 through and coupled to one end of the water injector 402a. The angle regulating motor 412 is integrally coupled with a PLG (Pulse Logic Generator) 416, and the motor 412 rotates the water injectors 402a and 402b by the signal of the PLG 416 to the nozzle 406. To adjust the angle.

On the other hand, a cooling water collection tank 420 having a drip tray 422a is attached to the lower ends of the pillars 202a and 202b, and a drip tray 422b to the lower ends of the pillars 202c and 202d facing the pillars 202a and 202b. ) Is attached. Gaskets 424a and 424b having excellent adhesion are attached to the opposing surfaces of the drip trays 422a and 422b, respectively, and limit switches 430 are attached to the upper portions of the gaskets 424a and 424b, respectively.

Inside the tank 420, a pump 426 for pumping the collected coolant is installed, which pumps the coolant collected at the inlet 442 of the cooler 440 through the coolant line 428. Supply.

Accordingly, the water injectors 402a and 402b, the coolant line 404, the coolant collecting tank 420, the pump 426, the coolant line 428, the cooler 440, and the like as described above are the rolls of the present invention. The cooling unit 400 of the cooling device is configured.

Next, the roll rotating part 500 is demonstrated. The rolling roll rotation motor 502 of the roll rotating part 500 is attached to the bracket 418 of the column 202b. The output shaft of the motor 502 is coupled with one end of the drive shaft 504, and one end of the motor 502 side of the drive shaft 504 is a column 202b by a bearing block 506 into which a bearing is inserted. The other end opposite to the other end is rotatably mounted to the column 202a by a bearing block 506 into which a bearing is inserted. The parts adjacent to the bracket 506 of the drive shaft 504 are each equipped with a drive roller 508 for rolling roll R rotation. It is preferable that these drive rollers 508 are hard and have good frictional force.

On the pillars 202c and 202d opposite the drive rollers 508, a pair of driven rollers 510 are arranged, which are coupled around portions adjacent to both ends of the driven shaft 69. The driven shaft 69 is rotatably coupled at both ends to a bearing block 514 into which a bearing fixed to the pillars 202c and 202d is inserted, and is mounted to the pillars 202c and 202d.

When the driving roller 508 and the driven roller 510 are mounted in this way, these rollers 508 and 510 have a rolling roll R arranged between the pillars 202a, 202b; 202c, and 202d as described below. 202a, 202b moves toward rolling roll R, and the driven roller 510 rolls a rolling roll when driving and driven rollers 508, 510 rotate rolling roll R while contacting rolling roll R. As shown in FIG. Rotation of (R) can be stably guided and supported.

Hereinafter, the measurement part 600 attached to the pillar 202c, 202d is demonstrated. Since the pair of measuring devices 600a and 600b of the measuring unit 600 are vertically mounted between the pillars 202c and 202d and have the same configuration and function, only the upper measuring device 600a will be described.

7 and 8, the lower base 602 is mounted between the pillars 202c and 202d by fastening means, and two guide rails 604 are installed side by side on the upper surface of the lower base 602. The groove 608 of the sliding block 606 is engaged with the guide rail 604 so that the sliding block 606 may slide on the guide rail 604. The sliding block 606 is formed with a screw hole 610 so that the horizontal feed screw 612 is inserted.

Both ends of the transverse conveying screw 612 extend into the storage space 204 through the through holes 210 of the pillars 202c and 202d, and extend into the receiving space 204 of the pillar 202c. The end of 612 engages the shaft 616 of the motor 614, which also extends into the receiving space 204 through the through hole 212 of the pillar 202c. The motor 614 is integrally provided with a PLG 618, and is fixedly mounted to the side of the pillar 202c by the bracket 624.

A pair of gears 620a are coupled to the periphery of both ends of the transverse feed screw 612, and a belt 622 is coupled to the periphery of these gears 620a to gear 620b of the lower measuring device 600b. And transmit power of the motor 614 to the horizontal feed screw 612.

In addition, an upper base 630 is installed above the sliding block 606, and a pair of guide rails 632 are installed side by side on an upper surface of the upper base 630. Front and rear guide guides 634 and rear guide guides 636 having through holes 638 are provided at front and rear surfaces of the guide rail 632.

A carriage 644 is slidably coupled to the guide rail 632 by a groove 646, and a ball screw nut 648 into which the ball screw 650 is inserted is fastened to a bottom surface of the carriage 644. The left end of the ball screw 650 is rotatably supported by the through hole 638 of the front holder 634, and the right end of the ball screw 650 is rotatable to the bearing 654 inserted into the through hole 638 of the rear holder 636. Being coupled to the motor 660 by a flange 656. The motor 660 is mounted to the motor holder 656 attached to the upper base 630.

In this configuration, when the motor 660 rotates, the ball screw 650 rotates to slide the combined carriage 644 back and forth along the guide rail 632.

A pair of holders 662 are attached to the upper surface of the carriage 644, and the sensor unit 670 is inserted into and fixed to the holes of these holders 662. Referring to FIG. 9, the sensor unit 670 includes a temperature sensor 672 installed at the front end portion, a displaceable contact bar 674 protruding from the front end portion, and a displacement sensor 678 measuring the displacement of the contact bar 674. And the displacement of the contact bar 674 is transmitted to the displacement sensor 678 by elements in the sensor unit 670 such as the spring 676. On the other hand, the front portion of the sensor unit 670 is slidably inserted into the guide 664 attached to the front of the upper base 630, so as to be stable by the guide 664 when the carriage 644 moves as described above. It can be supported by.

The above-described temperature sensor 672 measures the temperature of the rolling roll R being cooled, and the displacement sensor 678 measures the surface state of the rolling roll R before and after cooling, respectively, to signal processor 680 of FIG. 10. To transmit. This signal may be processed by the amplifier 682, the A / D converter 684, the CPU 686, or the like, and variously output by the screen of the computer 688 or the printer 692. Further, the operator's instructions are input to the computer 688 by the input device 690.

Referring to the operation of the present invention configured as described above are as follows.

First, the arm actuating motor 324 opens and closes the arms 200a and 200b, and is fastened to the support bar 308 while the screw shaft 314 composed of the left and right screws is rotated by the actuation of the arm actuating motor 324. The sliding blocks 304a-304d are slid along the guide rail 302 so that the arms 200a and 200b fastened to the sliding blocks 304a-304d can be opened and closed. In addition, the guide rod 330 serves to guide the support bar 308 when the arms 200a and 200b are opened and closed while the screw shaft 314 is rotated.

The cooling unit 400 serves to cool by spraying the cooling water directly onto the rolling roll (R), the plurality of nozzles 406 fastened to the water injectors (402a, 402b) while maintaining a constant interval and angle in the desired direction Coolant can be injected, and the angle adjustment motor 412 integrated with the PLG 416 is able to axially flow the upper and lower injectors 402 by the gears 408a and 408b and the belt 410. Thus, the upper and lower nozzles 406 to which the coolant is injected are integrally formed so as to be aligned at a desired angle.

In addition, the coolant collection tank 420 installed under the arms 200a and 200b is capable of receiving and recycling the coolant injected to the rolling roll R. The coolant is pumped by the start of the pump 426 to cool the coolant. It is sent to the cooler 440 through the line, the cooler 440 is to act to lower the coolant sucked below the ambient temperature to supply to the injector 402 through the coolant line 404.

The roll rotating part 500 acts to drive the rolling roll R. The rolling roll 500 is in a state in which the roller 508 is brought into close contact between the upper portion and the neck of the rolling roll R by the start of the motor 502. R) acts to drive, and the driven roller 510 fastened to the driven shaft 512 serves to support the opposite side of the rolling roll (R) when the roller 508 is driven.

The measuring unit 600 measures the temperature and the surface shape of the rolling roll R. The motor 614 integrated with the PLG 618 rotates the horizontal feed screw 612 to slide the sliding block 606. ) To the left and right, at this time, the belt 622 is driven by the drive of the gear 620a to drive the lower gear 620b so that the lower horizontal conveying screw 612 is rotated. The motor 660 rotates the ball screw 650 to move the carriage 644 fastened to the ball screw nut 648 forward and backward to move the sensor unit 670 on the carriage 644 forward and backward.

The displacement sensor 678 of the sensor unit 670 serves to measure the surface shape of the rolling roll R, and the non-contact temperature sensor 672 measures the surface temperature of the rolling roll R. An amplifier 682 amplifies the fine voltage delivered through the signal processor 680, and the converter 684 converts the amplified DC analog voltage into a digital signal, and a computer 688 with a CPU 686. The controller may store and display the measured value or input / output using the input device 690 and the printer 692.

The operation of the rolling roll cooling apparatus of the present invention having the above function will be described in detail with reference to the flowchart of FIG. 13 and the preceding drawings.

First, the rolling roll (R) surface measuring device and the cooling device is to start the work in the waiting state at the home position [S710], when the rolling roll (R) replacement from the finishing mill is completed by the rolling roll replacement device (R) enters the apparatus of the present invention [S712] and stops. Subsequently, when the motor 324 is started and rotates forward as shown in FIG. 7 (S714), the sliding block 304 crosses along the guide rail 302 by the rotation of the screw shaft 314 and the arm 202a. , 202b) is closed or closed.

Thereafter, the driving roller 508 and the driven roller 510 are in close contact with the neck portion of the rolling roll R, and the left and right drip trays 422a and 422b of the cooling water collection tank 420 are firmly secured by the gaskets 424a and 424b. At the same time, the limit switch 430 is turned on and the motor 324 is stopped (S716).

When the motor 660 of the measuring unit 600 is started, the ball screw 650 is rotated so that the sensor unit 670 is advanced by the advancement of the carriage 644. At this time, it is determined whether the contact bar 674 is in close contact with the rolling roll R [S718], and when the close contact is normally, the motor 660 is stopped. Thereafter, it is determined whether to measure the rolling roll R in a warm state (hot state) [S720]. If the measurement is to be made in the warm state, the motor 614 is started [S722], and the horizontal feed screw 612 While sliding, the sliding block 606 advances horizontally with the rolling roll R to measure temperature and surface shape (profile) [S724]. If it is determined that the measurement is completed [S726], if the measurement is not completed, the motor 614 is continuously started [S722]. If the measurement is completed, the motor 614 is stopped and the next operation is performed.

In the above, it is determined whether the rolling roll R is to be measured in the warm state [S720], and when the surface measurement is not performed in the warm state, the motor 502 is started [S728] by the driving roller 508. The upper and lower rolling rolls R rotate at the same time. At this time, the driven roller 510 is also rotated while supporting the upper and lower rolling roll (R) in the opposite direction.

Next, when the cooler 440 and the pump 426 are started [S730], the coolant supplied to the injector 402 is sprayed uniformly onto the rolling roll R through the nozzle 406. It is determined whether the injection angle of the coolant is correct according to the injection state [S732], and if it is correct, the coolant is continuously sprayed [S736]. If the injection angle is not correct, it is determined whether the direction of the coolant is upward [S734]. If the direction is upward, the angle adjustment motor 412 is rotated forward. If the direction of the coolant is downward, the angle adjustment motor 412 is rotated reversely. Continuous spraying of the coolant is carried out in a state of exactly setting [S736].

As described above, while the continuous cooling operation is performed, the motor 614 is continuously started [S738] to continuously measure the temperature of the rolling roll R. It is determined whether the measured temperature is below the atmospheric temperature [S740], and if the temperature is higher than the atmospheric temperature, the cooling operation is continuously performed [S736]. If the measured temperature is below the atmospheric temperature, the cooler 440 and the pump 426 are stopped, the measuring device is moved to the home position to stop [S742], and the motor 502 is stopped to stop the rolling roll R. To be.

Next, it is determined whether to measure the surface shape of the rolling roll R in the cold state [S744], and when the surface shape is to be measured in the cold state, the motor 614 is started to measure the profile. It is determined whether the measurement is completed [S746]. If the measurement is completed, the motor 614 is stopped, another motor 614 is started [S748], and the measurement sensor unit 114 is moved backward. Again, the motor 614 is started [S750] to move the measuring device to the home position.

Next, the motor 324 is started [S752], the arms 200a and 200b are opened to the open position, waiting at the home position, the rolling roll R conveying device is moved [S754], and then the operation is finished.

Therefore, according to the present invention, the rolling roll is rotated to be cooled to improve the cooling ability while providing uniform cooling, and to reduce the work efficiency and work process by measuring the surface shape according to the temperature change in real time. Has the effect of.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated that modifications and variations can be made.

Claims (5)

Flat stand 100; Movable arms (200a, 200b) suspended from the stand (100) in opposed forms; An arm transfer part (300) mounted to the stand (100) to move the arms (200a, 200b) in the planar direction of the stand (100); A cooling unit 400 mounted to the arms 200a and 200b to cool the rolling roll R positioned between the arms 200a and 200b; Having rollers 508 and 510 mounted to the arms 200a and 200b and the motor 500 driving the rollers 508 and 510 to rotate the rolling roll R by contact with the roll surface. Rolling roll rotating unit 500; And A sensor unit 670 mounted to the arm 200b to measure the temperature of the rolling roll R; Rolling roll cooling apparatus comprising a. The rolling roll cooling apparatus according to claim 1, wherein the sensor unit (670) includes a displacement sensor (678) for measuring the surface shape of the rolling roll (R). The rolling roll of claim 2, wherein the sensor unit 670 is movable in the longitudinal direction of the rolling roll R while being able to move forward and backward with respect to the rolling roll R positioned between the arms 200b. Cooling system. 2. The rolling roll cooling apparatus according to claim 1, wherein the arms (200a, 200b) are capable of moving forward and backward with respect to the rolling rolls (R) located therebetween. The rolling roll cooling apparatus according to claim 1, further comprising a cooling water collection tank (420) attached to a lower portion of the arm (200a).