KR102325006B1 - Device for removing foreign material of roll surface - Google Patents

Abstract

A device for removing foreign matter from the surface of a roll is provided. The apparatus for removing foreign substances on the surface of a roll according to the present invention includes a blade for contacting the surface of the roll, a blade holder including a unit holder divided into a plurality, a contact pressure adjusting unit for adjusting the contact pressure of the blade, and a contact pressure adjusting unit It is coupled and includes a first cooling unit for cooling the blade, the blade holder, and the contact pressure adjusting unit.

Description

DEVICE FOR REMOVING FOREIGN MATERIAL OF ROLL SURFACE

The present invention relates to an apparatus for removing foreign matter from the surface of a roll.

In the cold rolling and molten metal (zinc, aluminum, etc.) plating process, when foreign substances (metal chips, metal powders, metal residues, etc.) are attached to the roll that transports the steel sheet, the The surface may be scratched.

When a scratch occurs on the surface of a steel plate, the steel plate becomes a defective product and the value of the product is lost. In order to prevent this, a device for removing foreign substances from the surface of the roll is installed in the production line of the plating process.

The apparatus for removing foreign substances on the surface of the roll may include a heat-resistant blade capable of contacting the front end on the surface of the roll, and a blade holder that holds the blade and is divided into three, the blade exposed to the high-temperature atmosphere is highly deformable and deformed The old blade acts as an obstacle in removing foreign substances from the roll surface.

An object of the present invention is to provide an apparatus for removing foreign substances from the surface of a roll that can prevent shape deformation of a blade even when exposed to high temperatures for a long time.

The apparatus for removing foreign substances on the surface of a roll according to an embodiment of the present invention includes a blade for contacting the surface of the roll, a blade holder including a unit holder holding the blade and divided into a plurality, the blade holder is coupled to the surface of the roll It may include a contact pressure adjusting unit for adjusting the contact pressure of the contacted blade.

In addition, the apparatus for removing foreign matter on the roll surface may include a first cooling unit coupled to the contact pressure adjusting unit and cooling the blade, the blade holder, and the contact pressure adjusting unit.

The apparatus for removing foreign substances from the roll surface may include an automatic contact pressure control unit coupled to the contact pressure adjusting unit and automatically controlling the contact pressure of the blades.

In addition, the apparatus for removing foreign substances from the surface of the roll may include a second cooling unit connected to the automatic contact pressure control unit and configured to cool the contact pressure automatic control unit to a set temperature.

The apparatus for removing foreign substances from the surface of the roll may include a blade compressive strength increasing unit coupled to the blade and configured to increase the compressive strength of the blade.

The blade compressive strength increasing unit may include a back plate coupled to the upper surface of the blade.

The blade compression strength increasing unit may include a holder cover for covering the upper surface of the back plate.

A reinforcing plate for reinforcing the blade may be coupled to the upper surface of the holder cover.

The contact pressure adjusting unit includes a first duct bag through which the cooling hole is disposed in the longitudinal direction, a second duct into which the first duct bag is inserted, rotatably coupled to the first duct bag, and one or more unit holders of the blade holder are fixedly coupled. It may include a bag.

The contact pressure adjusting unit may include a third duct bag into which the first duct bag is inserted and fixedly coupled to the first duct bag, and one unit holder among the blade holders is fixedly coupled.

The first duct bag, the second duct bag, and the third duct bag may be formed of a hollow tube with an empty interior.

The third duct bag may be disposed between the second duct bag and the second duct bag.

A bearing may be interposed between the first duct bag and the second duct bag, and a first gap portion may be disposed in a portion other than the bearing.

A spacer may be fixedly coupled between the first duct bag and the third duct bag, and a second gap portion may be disposed in a portion other than the spacer.

The contact pressure adjusting unit may include a first lever and a second lever for manually adjusting rotation angles of the first duct bag, the second duct bag, and the third duct bag.

The automatic contact pressure control unit may include a link coupled to one end of the first duct bag, and an actuator connected by a connecting rod to rotate the link.

The actuator may include a working cylinder in which a space portion is disposed between the double outer wall and the outer wall, and a first inlet pipe connected to one surface of the working cylinder in communication with the space portion.

The first cooling unit may include a second inlet pipe connected to the cooling hole, and a cooler connected to the second inlet pipe and for introducing cooling air into the second inlet pipe.

The first cooling unit may include a first discharge hole, a second discharge hole, and a third discharge hole which are disposed to penetrate the first duct bag, the second duct bag, and the third duct bag in a plurality at intervals set in the longitudinal direction, respectively. may include.

The second cooling unit may include a first inlet pipe connected to the working cylinder, and a cooler connected to the first inlet pipe and for introducing cooling air into the first inlet pipe.

The cooler may include a first manifold connected to the first inlet pipe, the second inlet pipe, respectively, and a cooling tube connected to the first manifold and connected to an air pipe for introducing compressed air.

The cooler may include a first inlet pipe, a second manifold connected to the second inlet pipe, respectively, and a cooling fan inserted and fixed in a through hole through at least one end surface of the second manifold.

According to the embodiment of the present invention, it is possible to prevent the deformation of the shape of the foreign material removal device component that is generated while heating and cooling by the transferred steel plate is repeated. Accordingly, a phenomenon in which the plurality of duct bags are bent and not rotated can be prevented in advance.

In addition, since the blade holder is bent, it is possible to prevent a phenomenon that only a part of the blade is in close contact with the surface of the roller, and thus it is possible to prevent in advance a phenomenon in which foreign substances cannot be properly removed. Furthermore, it is possible to prevent in advance a phenomenon that causes a defect in the steel sheet due to foreign substances.

In addition, after the first and second levers are rotated and set, the blade can be automatically rotated by the actuator in a clockwise or counterclockwise direction by a desired angle, thereby providing the convenience of operation.

In addition, the compressive strength of the blade can be increased by the back plate, and since the thickness can be variously adjusted, the compressive strength can be appropriately adjusted.

In addition, it is possible to prevent in advance a phenomenon in which the blade is lifted upward by the reinforcing plate for a long period of time to separate from the surface of the roll, and thus foreign substances cannot be properly removed.

In addition, since the inconvenience of replacing the blade again after stopping the production line can be solved, productivity can be improved by that much.

1 is a schematic perspective view of an apparatus for removing foreign substances from a roll surface according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line F-F' of FIG. 1 .
3 is a schematic partially exploded perspective view of an apparatus for removing foreign substances from a roll surface according to an embodiment of the present invention.
4 is a cross-sectional view taken along the longitudinal direction of the first duct bag of part A of FIG. 1 .
5 is a cross-sectional view taken along the longitudinal direction of the first duct bag of part B of FIG. 1 .
6 is a partial cross-sectional view for explaining a cold air inlet space in the actuator of the apparatus for removing foreign substances on the roll surface according to an embodiment of the present invention.
7 is a cross-sectional view for explaining an example in which a cooling tube is applied as a cooler of an apparatus for removing foreign substances on a roll surface according to an embodiment of the present invention.
8 is a cross-sectional view for explaining an example in which a thermoelectric element is applied as a cooler of an apparatus for removing foreign substances on a roll surface according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention will be described so that those of ordinary skill in the art can easily carry out the present invention. As can be easily understood by those of ordinary skill in the art to which the present invention pertains, the embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Wherever possible, identical or similar parts are denoted by the same reference numerals in the drawings.

The terminology used below is for the purpose of referring to specific embodiments only, and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

All terms including technical terms and scientific terms used below have the same meaning as those commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms defined in the dictionary are further interpreted as having a meaning consistent with the related art literature and the presently disclosed content, and unless defined, are not interpreted in an ideal or very formal meaning.

1 is a schematic perspective view of an apparatus for removing foreign matter from a roll surface according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line F-F' of FIG. 1 .

3 is a schematic partially exploded perspective view of an apparatus for removing foreign substances on a roll surface according to an embodiment of the present invention, FIG. 4 is a cross-sectional view along the longitudinal direction of the first duct bag of part A of FIG. 1, and FIG. It is a cross-sectional view along the longitudinal direction of the 1st duct bag of part B.

6 is a partial cross-sectional view for explaining a cold air inlet space in the actuator of the apparatus for removing foreign substances on the roll surface according to an embodiment of the present invention, and FIG. 7 is a cooler of the apparatus for removing foreign substances on the roll surface according to an embodiment of the present invention. It is a cross-sectional view for explaining an example in which a cooling tube is applied.

Referring to FIGS. 1 to 7 , the apparatus for removing foreign substances from the surface of a roll according to an embodiment of the present invention is a blade 100 for contacting the front end (the Y-direction end in FIG. 1 ) to the surface of the roll 10 . And, holding the blade 100 and may include a blade holder 200 including a plurality of divided unit holders (201, 202, 203).

In addition, in the device for removing foreign substances on the surface of the roll, the blade holder 200 is coupled, and a rotational force is generated in the blade holder 200 to adjust the contact pressure of the blade 100 that comes into contact with the surface of the roll 10 . It may include a pressure adjusting unit 300 .

The device for removing foreign substances on the roll surface is coupled to the contact pressure adjusting unit 300 and prevents thermal deformation of the blade 100, the blade holder 200, and the contact pressure adjusting unit 300 heated due to the transferred steel plate. It may include a first cooling unit for cooling the contact pressure adjusting unit 300 and the components coupled thereto to below a set temperature.

In addition, the device for removing foreign matter on the surface of the roll is coupled to the contact pressure adjusting unit 300 , and automatically controlling the rotation angle of the blade 100 to automatically control the contact pressure of the blade by the contact pressure adjusting unit 300 . It may include a contact pressure automatic control unit.

The apparatus for removing foreign substances on the surface of the roll may include a second cooling unit connected to the automatic contact pressure control unit and cooling the contact pressure automatic control unit to a set temperature or less so as to prevent thermal deformation of the automatic contact pressure control unit.

The apparatus for removing foreign substances from the surface of the roll may include a blade compression strength increasing unit coupled to the blade 100 and for increasing the compression strength of the blade 100 .

The blade 100 may be made of a material such as a nickel-chromium-tungsten alloy (eg, haynes 230), stainless steel, or heat-resistant rubber to withstand high heat generated on the surface of the roll 10 .

The blade holder 200 may be divided into a plurality of unit holders 201, 202, 203, and although it is exemplified that the blade holder is divided into three, it may be applied in the same way even if there are three or more.

The blade 100 may be closely coupled to the top surface of the front end of the unit holder 201 , 202 , 203 so as to protrude in front of the front end (Y direction in FIG. 1 ).

In the second duct bag 305 and the third duct bag 311 , which will be described below as the configuration of the contact pressure adjusting unit 300 , the plate 205 is provided in the direction of the tip end of the blade 100 (the Y direction in FIG. 1 ), respectively. It can be fixedly coupled side by side.

The plate 205 may be made of a material such as stainless steel having heat resistance.

The blade compressive strength increasing unit may include a back plate 210 closely coupled to the upper surface of the blade 100 .

The back plate 210 may be disposed along the longitudinal direction (X direction in FIG. 1 ) of the blade 100 to further increase the compressive strength of the blade 100 .

In addition, the back plate 210 may be disposed to protrude from the tip of the plate 205 and to enter rather than to the tip of the blade 100 so as to maximize the frictional force by maximally pressing the blade 100 .

Here, the front end of the plate 205 refers to an end of the plate 205 that is close to the roll R side, and the front end of the blade 100 refers to the end of the roll R among the ends of the blade 100 . ) indicates the end that is close to the side.

In addition, the upper surface of the back plate 210 may be covered by the holder cover 220 formed in a unit shape to correspond to each plate 205 .

In addition, a reinforcing plate 230 for preventing the blade 100 from being bent upward (in the Z direction in FIG. 1 ) may be closely coupled to the upper surface of the holder cover 220 .

The reinforcing plate 230 may have a shape in which one end 235 is bent toward the upper surface of the blade 100 so as to more effectively prevent bending of the blade 100 .

In addition, a reinforcing plate 230 , a holder cover 220 , a back plate 210 , and a coupling device 240 for coupling the blade 100 and the plate 205 may be provided.

The coupling device 240 passes through, for example, a tap hole (not shown) penetrating through the plate 205 , the reinforcing plate 230 , the holder cover 220 , the back plate 210 , and the blade 100 . It may include a bolt (not shown) that is inserted and fastened to the tapped hole.

The plate 205 and the holder cover 220 are provided in a unit form, respectively, and the blade 100 , the back plate 210 , and the reinforcing plate 230 are provided in a unit form to be coupled to each plate 205 at the same time. can

Also, the contact pressure adjusting unit 300 may include a first duct bag 301 , a second duct bag 305 , and a third duct bag 311 .

The first duct bag 301 may have a hollow shape through which the cooling hole 303 is disposed in the longitudinal direction (X direction in FIG. 1 ).

The second duct bag 305 is rotatably coupled to the first duct bag 301 into which the first duct bag 301 is inserted, with the first duct bag 301 as a center, and one of the blade holders 200 . The above unit holders 201 and 203 may be fixedly coupled.

In the third duct bag 311 , the first duct bag 301 is inserted and fixedly coupled to the first duct bag 301 , and one unit holder 202 of the blade holder 200 may be fixedly coupled. .

The first duct bag 301 , the second duct bag 305 , and the third duct bag 311 may be formed of a hollow tube with an empty interior for easy coupling and smooth rotation.

The second duct bag 305 is disposed to be spaced apart from each other on both ends of the first duct bag 301 , and the third duct bag 311 is a central portion of the first duct bag 310 in the longitudinal direction (X direction in FIG. 1 ). can be placed in

That is, the third duct bag 311 may be disposed between the second duct bag 305 and the second duct bag 305 .

In addition, a bearing (G) is interposed between the first duct bag (301) and the second duct bag (305), and between the first duct bag (301) and the second duct bag (305) other than the bearing (G). A first gap portion 306 forming a space may be disposed in the portion.

The bearing G may be inserted into and coupled to a bearing installation groove (not shown) disposed at both ends of the inner surface of the second duct bag 305 .

A plurality of fastening holes (W) passing through the second duct bag (305) are disposed in the second duct bag (305) in the longitudinal direction (X direction in FIG. 4) or at set intervals along the circumferential surface, and the fastening holes (W) ) may be fastened with a second bolt (not shown) for pressing the first duct bag 301 .

Therefore, it is configured to stop the rotation of the second duct bag 305, that is, the rotation angle of the second duct bag 305 is set by the second bolt (not shown) fastened to the fastening hole W. It can be maintained at an angle of rotation.

In addition, the spacer 309 is fixedly coupled between the first duct bag 301 and the third duct bag 311 , and between the first duct bag 301 and the third duct bag 311 other than the spacer 309 . A second gap portion 307 forming a space may be disposed in a portion of .

Therefore, since the third duct bag 311 is fixedly coupled to the first duct bag 301, it is rotated simultaneously with the first duct bag 301, and the second duct bag 305 and the second duct bag (305) on both sides thereof ( 305) may be interposed.

The spacer 309 has a ring shape, and may be fixedly coupled to both ends of the outer surface of the first duct bag 301 and the inner surface of the third duct bag 311 by welding or the like.

In addition, the contact pressure adjusting unit 300 includes the first duct bag 301 so that the operator can manually adjust the rotation angles of the first duct bag 301 , the second duct bag 305 , and the third duct bag 311 . ), and a first lever 313 and second levers 315 and 317 fixed to the second duct bag 305, respectively.

The automatic contact pressure control unit is for automatically adjusting the rotation angles of the first duct bag 301 , the second duct bag 305 , and the third duct bag 311 .

To this end, the automatic contact pressure control unit is connected by a connecting rod 333 to rotate the link 321 coupled to one end of the first duct bag 301 and the link 321 and the first duct bag 301 . ) may include an actuator 330 for rotating clockwise or counterclockwise.

The actuator 330 may be formed of, for example, an air cylinder or a hydraulic cylinder.

Here, the actuator 330 is illustrated as being composed of a working cylinder 331 in which a piston reciprocates.

The working cylinder 331 has a double outer wall 332 , and a space 335 through which cold air is introduced may be disposed between the outer wall 332 and the outer wall 332 .

A first nipple 336 is mounted on one surface of the working cylinder 331 , and a first inlet pipe 339 connected to a cooling unit is connected to the first nipple 336 , and the first inlet pipe 339 is a first 1 may be in communication with the space 335 by the nipple 336.

In addition, a fourth discharge hole 337 for discharging the cooling air introduced into the space 335 through the first inlet pipe 339 may be disposed through the outer surface of the outer wall 332 .

The first cooling unit is connected to the cooling hole 303 of the first duct bag 301 and is connected to a second inlet pipe 319 for introducing cooling air, a second inlet pipe 319 and a second inlet pipe It may include a cooler 340 for introducing cooling air to the 319 .

A 2-1 nipple 320 is mounted to one end of the first duct bag 301 for connection with the second inlet pipe 319 , and a cooling hole 303 is provided at the other end of the first duct bag 301 . A 2-2 nipple (320A) blocking the end by the sealing member (320B) for sealing of the may be mounted.

The first cooling unit is disposed to penetrate the first duct bag 301, the second duct bag 305, and the third duct bag 311 in a plurality at intervals set along the longitudinal direction (X direction in FIG. 1), respectively, First, second, and third discharge for discharging the cooling air introduced into the first duct bag 301 , the second duct bag 305 , and the third duct bag 311 through the second inlet pipe 319 . It may include holes H1, H2, H3.

To this end, one end of the first duct bag 301 blocks the cooling hole 303 , and the other end is connected to the inlet pipe 319 by the second nipple 320 by opening the cooling hole 303 . .

The cooling air introduced into the first duct bag 310 flows into the second duct bag 305 and the third duct bag 311 through the first exhaust hole H1, and then flows into the second exhaust hole H2 and the second exhaust hole H2 and the second duct bag 311. 3 may be discharged through the discharge hole (H3), respectively.

In addition, the second cooling unit is connected to the working cylinder 331 of the actuator 330 and is a first inlet pipe 339 for introducing cooling air into the space 335 of the working cylinder 330 , and a first inflow. It may include a cooler 340 connected to the tube 339 and for introducing cooling air into the first inlet tube 339 .

Hereinafter, an example in which a cooling tube is applied as the cooler 340 will be described.

The cooler 340 to which the cooling tube is applied is connected to the box-shaped first manifold 344 connected to the first and second inlet tubes 339 and 319, respectively, and to the first manifold 344, and It may include a cooling tube (349, vortex tube) to which the air pipe (I) for the inlet is connected.

When compressed air is introduced into the cooling tube 349 through the air pipe I, cold air may be discharged toward the first manifold 344 , and warm air may be discharged to the opposite side of the first manifold 344 . .

In addition, a third nipple (R) for connection with the first inlet pipe (339) is connected to the first manifold (344), and a fourth nipple (Q) for connection with the second inlet pipe (319) is connected to the first manifold (344). can

Since the first inlet pipe 339 and the second inlet pipe 319 are respectively connected to the third nipple (R) and the fourth nipple (Q), cold air filled in the first manifold 344, that is, cooled air is supplied to the first duct bag 301 and the actuator 330 through the third nipple (R) and the fourth nipple (Q), and the first inlet pipe 339 and the second inlet pipe 319, respectively, and cooled can work

Hereinafter, with reference to FIGS. 1 to 7, the operation of the apparatus for removing foreign substances from the roll surface according to an embodiment of the present invention will be described.

First, the apparatus for removing foreign substances on the surface of a roll according to an embodiment of the present invention is mounted on a production line for conveying a steel sheet in a high temperature state above a set temperature in cold rolling and molten metal (zinc, aluminum, etc.) plating process.

At this time, the distal end of the blade 100 (the Y-direction end in FIG. 1 ) is disposed to face away from the roll 10 .

In addition, the first duct bag 301 is rotatably supported on the bearing G fixed to the production line, and the actuator 330 is also supported on the production line.

In this state, by rotating the first lever 313 and the second levers 315 and 317, each unit holder 201, 202, 203 of the blade holder 200 is rotated toward the roll 10 to rotate the blade 100 ) to be in close contact with the pressure set on the roll 10 .

At this time, since the blade holder 200 is divided into a plurality of unit holders 201 , 202 , 203 , the blade 100 is appropriately bent to match the shape of the crown of the roll 10 , and is applied to the roll 10 . will match

In addition, when the first duct bag 301 is pressed by a bolt (not shown) fastened to the fastening hole W of the second duct bag 305, the second duct bag 305 moves to the first duct bag ( 301) is prevented from rotating.

Accordingly, the first duct bag 301 , the second duct bag 305 , and the third duct bag 317 can rotate at the same time.

Since the third duct bag 317 is fixedly coupled to the first duct bag 301 , the third duct bag rotates simultaneously with the first duct bag 301 . Then, the amount of advance (the amount of movement in the Y direction in FIG. 1 ) of the connecting rod 333 of the actuator 330 is checked by the rotation angle of the first duct bag 301 .

Then, when the steel plate is transferred, the actuator 330 is driven to advance the connection rod 333 by the checked amount (movement in the Y direction in FIG. 1), and the link 321 is rotated in a clockwise or counterclockwise direction. rotate to

When the link 321 is rotated at a set angle, the first duct bag 301 is rotated so that the blade 100 can compress the roll 10 at a set pressure.

In this state, foreign substances such as metal residues adhered to the surface of the roll 10 are separated from the roll 10 by the blade 100 in frictional contact with the roll 10 .

At this time, the back plate 210 applies a force of a set magnitude to the blade 100 to prevent the blade 100 from being easily bent upward (in the Z direction in FIG. 1 ) to increase frictional force.

In addition, since the extent to which the blade 100 is bent upward by the reinforcing plate 230 can be limited, the blade 100 can press the roll 10 with a constant pressure.

Then, when compressed air is introduced into the cooler 340 , that is, the cooling tube 349 shown in FIG. 7 , cold air, that is, cooling air is supplied to the first manifold 344 side, and the cooling tube 349 . On the basis of , hot air, that is, hot air, is discharged to the opposite side of the first manifold 344 .

As described above, the cold air introduced into the first manifold 344 and filled is the actuator 330 and the first through the third and fourth nipples R and Q and the first and second inlet pipes 339 and 319 . It flows into the duct bag 301 .

Then, the cold air introduced into the first duct bag 301 passes through the cooling hole 303 and exits to the outside of the first duct bag 301 through the first discharge hole H1.

In addition, the cold air exiting to the outside of the first duct bag 301 circulates between the first gap portion 306 and the second gap portion 307 while circulating the second outlet hole H2 of the second duct bag 305 . And is discharged to the outside through the third discharge hole (H3) of the third duct bag (311), also discharged toward the blade holder (200).

The unit holder 201 of the first duct bag 301 , the second duct bag 305 , the third duct bag 311 , and the blade holder 200 heated due to the steel plate transferred through the movement process of the cold air. The coupling structure of the 202 and 203 and the blade 100 is cooled by the cold wind discharged toward the blade holder 200 and thermal deformation can be prevented.

In addition, since the cold air of the cooler 340 flows into the space 335 of the outer wall 332 of the actuator 330 and then is discharged through the fourth discharge hole 337 due to the high heat of the steel plate Since the heated actuator 330 is cooled by the cold wind, thermal deformation due to the high heat of the steel plate and damage to the sensor and rubber packing can be prevented.

In this way, when the foreign matter removal and cooling operation is completed, the connecting rod 333 of the actuator 330 is reversed to its original position and the first duct bag 301 is rotated counterclockwise or clockwise by a set angle. , the blade 100 is separated from the roll 10 .

As described above, the apparatus for removing foreign substances from the surface of the high temperature roll of the present invention has the following effects because it has a first cooling unit, a second cooling unit, a contact pressure adjusting unit, an automatic contact pressure control unit, and a blade compression strength increasing unit. can perform

It is possible to prevent shape deformation of components of the foreign material removal device that occurs while heating and cooling are repeated by the transferred steel plate, and thus, the first duct bag 301, the second duct bag 305, and the third duct bag ( 311) can be bent and prevented from rotating in advance.

In addition, since the blade holder 200 is bent to prevent a phenomenon in which only a portion of the blade 100 is in close contact with the surface of the roller 10, it is possible to prevent in advance a phenomenon in which foreign substances cannot be properly removed. Therefore, it is possible to prevent in advance a phenomenon that causes defects in the steel sheet due to foreign substances.

In addition, after setting the first and second levers 313 , 315 , 317 to a desired position, the blade 100 can be automatically rotated clockwise or counterclockwise by the actuator 330 by a desired angle. Therefore, it is possible to provide that much convenience of work.

In addition, it is possible to increase the compressive strength of the blade 100 by the back plate 210, since the thickness can be variously adjusted, the compressive strength can be appropriately adjusted.

In addition, it is possible to prevent in advance a phenomenon in which the blade 100 is lifted upward by the reinforcing plate 240 and is separated from the surface of the roll 10 by the reinforcing plate 240 to properly remove foreign substances.

In addition, since the inconvenience of replacing the blade 100 again after stopping the production line can be solved, productivity can be improved by that much.

8 is a cross-sectional view illustrating an example in which a thermoelectric element is applied as a cooler of an apparatus for removing foreign substances from a roll surface according to an embodiment of the present invention.

8 is a cross-sectional view showing an example in which a thermoelectric element is applied as a cooler mounted on the apparatus for removing foreign substances on the surface of a roll of the present invention, except for the matters specifically described below, in the apparatus for removing foreign substances on the surface of a roll according to an embodiment of the present invention; Since they are the same as those described, a detailed description thereof will be omitted.

Referring to FIG. 8 , the cooler 340A to which the thermoelectric element is applied includes a box-shaped second manifold 341 connected to the first and second inlet pipes 339 and 319, respectively, and a second manifold 341 . It may include a cooling fan 342 inserted and fixed in at least one through-hole 3411 through one end surface.

A fifth nipple (M) for connection with the first inlet pipe 339 may be connected to the second manifold 341 , and a sixth nipple (L) for connection with the second inlet pipe 319 may be connected to the second manifold 341 . .

Between the cooling fan 342 and the second manifold 341 may be sealed by a sealing member (not shown) so that the cold air does not leak.

In addition, a cooling block 343 having a plurality of cooling fins S is attached to the cooling fan 342 , and a thermoelectric element 345 having a cooling surface and a heat dissipation surface attached to the cooling block 343 may be disposed. have.

A plurality of heat dissipation blocks 346 on which heat dissipation fins T are disposed are attached to the heat dissipation surface of the thermoelectric element 345 , and a heat dissipation fan 347 may be attached to the heat dissipation block 346 .

The thermoelectric element 345 may refer to a plate-shaped element in which a cooling surface is cooled and a heat dissipation surface is heated by application of electricity.

When electricity is applied to the cooler 340A to which the thermoelectric element is applied, the cooling block 343 is cooled by the thermoelectric element 345 and the heat dissipation block 346 is radiated.

In this state, the air is cooled while passing through the cooling fins S of the cooling block 343 to generate cold air, that is, cooled air, which passes through the second manifold 341 through the cooling fan 342 . It flows through the first and second inlet pipes 339 and 319 through the actuator 330 and the first duct bag 301 .

In the heat dissipation block 346, the heat of the heat dissipation surface of the thermoelectric element 345 is conducted to radiate heat, thereby generating warm air. After passing through, it is discharged to the outside.

Accordingly, since the heat dissipation surface of the thermoelectric element 345 is cooled, cooling efficiency can be improved. Since the subsequent cooling process is the same as the action of the cooler 340 to which the cooling tube is applied, a detailed description thereof will be omitted.

Although the present disclosure has been described through preferred embodiments as described above, the present invention is not limited thereto, and various modifications and variations are possible without departing from the scope of the claims set forth below. Those in the field will understand easily.

10: roll 100: blade
200: blade holder 210: back plate
220: holder cover 230: reinforcement plate
240: coupling device 300: contact pressure adjustment unit
301: first duct bag 305: second duct bag
311: third duct bag 400: cooler

Claims (20)

a blade for contacting the surface of the roll,
A blade holder holding the blade and comprising a unit holder divided into a plurality;
A contact pressure adjusting unit to which the blade holder is coupled, and for adjusting the contact pressure of the blade in contact with the surface of the roll, and
A first cooling unit coupled to the contact pressure adjusting unit and configured to cool the blade, the blade holder and the contact pressure adjusting unit
including,
The contact pressure adjusting unit,
A first duct bag through which the cooling hole is disposed in the longitudinal direction;
a second duct bag into which the first duct bag is inserted and rotatably coupled to the first duct bag, and to which one or more unit holders of the blade holders are fixedly coupled; and
and a third duct bag into which the first duct bag is inserted and fixedly coupled to the first duct bag, and a third duct bag to which one unit holder of the blade holders is fixedly coupled. According to claim 1,
The apparatus for removing foreign substances from the surface of a roll, coupled to the contact pressure adjusting unit, and including an automatic contact pressure control unit for automatically controlling the contact pressure of the blade. 3. The method of claim 2,
The apparatus for removing foreign substances from the surface of a roll, which is connected to the automatic contact pressure control unit and includes a second cooling unit for cooling the contact pressure automatic control unit to a set temperature. According to claim 1,
A device for removing foreign substances from the surface of a roll coupled to the blade and including a blade compressive strength increasing part for increasing the compressive strength of the blade. 5. The method of claim 4,
The device for removing foreign matter from the surface of the roll comprising a back plate coupled to the upper surface of the blade compressive strength increasing portion. 6. The method of claim 5,
The device for removing foreign substances from the surface of the roll including a holder cover for covering the upper surface of the back plate by the blade compressive strength increasing unit. 7. The method of claim 6,
A device for removing foreign substances from the surface of the roll to which a reinforcing plate for reinforcing the blade is coupled to the upper surface of the holder cover. delete According to claim 1,
The first duct bag, the second duct bag, and the third duct bag is an apparatus for removing foreign substances from the surface of a roll made of a hollow tube with an empty inside. 10. The method of claim 9,
The third duct bag is an apparatus for removing foreign substances from the roll surface disposed between the second duct bag and the second duct bag. 11. The method of claim 10,
A bearing is interposed between the first duct bag and the second duct bag, and a first gap portion is disposed in a portion other than the bearing. 12. The method of claim 11,
A spacer is fixedly coupled between the first duct bag and the third duct bag, and a second gap portion is disposed in a portion other than the spacer. 4. The method of claim 3,
The contact pressure adjusting unit, the roll surface foreign matter removal device including a first lever and a second lever for manually adjusting the rotation angles of the first duct bag and the second duct bag. 14. The method of claim 13,
The contact pressure automatic control unit, the roll surface foreign matter removal device comprising a link coupled to one end of the first duct bag, and an actuator connected by a connecting rod to rotate the link. 15. The method of claim 14,
The actuator may include a working cylinder in which a space portion is disposed between an outer wall and the outer wall configured as a double, and a first inlet pipe connected in communication with the space portion on one surface of the working cylinder. 16. The method of claim 15,
The first cooling unit may include a second inlet pipe connected to the cooling hole, and a cooler connected to the second inlet pipe and configured to introduce cooling air into the second inlet pipe. 17. The method of claim 16,
The first cooling unit may include a first discharge hole, a second discharge hole, and a plurality of first discharge holes which are disposed to penetrate the first duct bag, the second duct bag, and the third duct bag at intervals set in the longitudinal direction, respectively, and A device for removing foreign substances from the surface of the roll including a third discharge hole. 18. The method of claim 17,
The second cooling unit may include a first inlet pipe connected to the working cylinder, and a cooler connected to the first inlet pipe and configured to introduce cooling air into the first inlet pipe. 19. The method of claim 18,
The cooler includes a first manifold connected to the first and second inlet pipes, respectively, and a cooling tube connected to the first manifold and connected to an air pipe for introducing compressed air. removal device. 19. The method of claim 18,
The cooler includes a second manifold connected to the first and second inlet pipes, respectively, and a cooling fan inserted and fixed in a through hole through at least one end surface of the second manifold. debris removal device.

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