KR20210116059A - Device for removing foreign material of domains grain-oriented electrical steel - Google Patents

Abstract

Provided is an apparatus for removing foreign substances from a grain-oriented electrical steel sheet. The apparatus for removing foreign substances according to the present invention comprises: a foreign substance removal member disposed in a laser irradiation section; a removal member support unit having a support rod for supporting the foreign substances removal member; a first height adjustment unit for adjusting heights of both end units of the support rod, respectively; a second height adjustment unit; and a removal member exchange unit which enables exchange of the foreign substances removal member. An objective of the present invention is to provide the apparatus for removing the foreign substances from the grain-oriented electrical steel sheet so that the foreign substances can be removed from the surface of the steel sheet.

Description

DEVICE FOR REMOVING FOREIGN MATERIAL OF DOMAINS GRAIN-ORIENTED ELECTRICAL STEEL}

The present invention relates to an apparatus for removing foreign substances from grain-oriented electrical steel sheets.

In general, the permanent magnetic domain refining process of grain-oriented electrical steel sheet permanently forms a groove by melting the steel sheet by irradiating a laser beam on the surface of the steel sheet to reduce the iron loss of the grain-oriented electrical steel sheet used as the iron core of electrical equipment such as transformers. Refine the magnetic domain of the steel sheet.

When a laser beam is irradiated from an optical system in the permanent magnetic domain refinement process of a grain-oriented electrical steel sheet, the laser beam reaching the surface of the steel sheet forms a groove on the surface of the steel sheet.

At this time, the generated molten iron dust or the like falls on the surface of the steel sheet, and some of it is fused to the cooling plate and the lower base plate of the optical system to grow into a lump of molten iron.

This lump of molten iron falls by its own weight or falls by the molten iron removal device and falls on the surface of the steel sheet.

In this way, foreign substances (dust, molten iron lumps, etc., hereinafter referred to as foreign substances for convenience) that have fallen on the surface of the steel sheet move to a later process and, when inserted between the rolls, create flaws or holes in the steel sheet. This can lead to breakage of the steel plate.

The present invention is an apparatus for removing foreign substances from grain-oriented electrical steel sheets so that, when a laser beam is irradiated to the steel sheet surface in the permanent magnetic domain refining process of grain-oriented electrical steel sheet, foreign substances that have fallen on the steel sheet surface can be removed from the steel sheet surface before moving to a later process would like to provide

The foreign material removal apparatus of the grain-oriented electrical steel sheet according to an embodiment of the present invention may include a foreign material removal member disposed in the laser irradiation section, and for removing the foreign material falling on the steel sheet surface in contact with the steel sheet.

The foreign material removal device is coupled to the foreign material removal member and is installed at both ends of the removal member support portion and the support rod for supporting the foreign material removal member in contact with the surface of the steel plate, and adjusting the height of both ends of the support rod with respect to the installation surface. It may include a first height adjustment unit, a second height adjustment unit for

The foreign material removal device may include a removal member exchange unit coupled to the removal member support portion and installed to be spaced apart from the steel plate to enable exchange of the foreign material removal member.

It is coupled between the both ends of the support rod and the first height adjusting unit and the second height adjusting unit, and may include a first angle adjusting unit and a second angle adjusting unit for adjusting the angle of the foreign material removing member with respect to the surface and side of the steel plate. .

The removing member support part may include a support frame coupled to the support rod and for supporting the foreign material removing member, and a support pad installed under the foreign material removing member and for cushioning the impact of the foreign material removing member.

The foreign material removing member is disposed between the first deflector and the second deflector on which the steel plate is supported, and on one side of the support rod, the foreign material is separated from the foreign material to prevent the foreign material from being separated into the space between the foreign material removing member and the second deflector. A preventive plate may be installed.

A plurality of injection nozzles for spraying gas toward the surface of the steel plate may be installed at a set interval on the support rod.

The first height adjustment unit may include a first rotation shaft manually rotated by the drive of the first drive motor or the first handle, a first gear unit coupled to the first rotation shaft and converting the rotational motion of the first rotation shaft into a linear motion. can

In addition, the first height adjustment unit is coupled to the first gear unit and is installed at the upper end of the first spindle and the first spindle for lifting and lowering in a direction perpendicular to the first rotational axis by the first gear unit and together with the first spindle. It may include a first screw that is lifted.

The second height adjustment unit may include a second gear unit coupled to a second rotating shaft and a second rotating shaft manually rotated by the driving of the second driving motor or the second handle and converting the rotational motion of the second rotating shaft into a linear motion. can

The second height adjustment unit is coupled to the second gear unit and installed at the upper end of the second spindle and the second spindle for lifting and lowering in a direction orthogonal to the second rotation axis by the second gear unit and is raised and lowered together with the second spindle. A second screw may be included.

The removal member exchange unit may include an exchange frame coupled to the support frame and having an insertion unit for inserting a combination of the foreign material removal member and the support pad.

The removal member exchange unit may include at least one guide bolt for separably coupling the support pad and the foreign material removal member, and a frame guide installed in the insertion part of the support frame to guide the insertion of the guide bolt.

The first angle adjusting unit includes a first moving head into which one end of the support bar is movably inserted, a first head shaft having a ball head arbitrarily inserted and coupled to a lower end surface of the first moving head, and the first head It may include a first lifting arm for arbitrarily coupling the first screw.

The second angle adjusting unit includes a second moving head into which the other end of the support bar is movably inserted, a second head shaft having a second ball head arbitrarily rotatably inserted and coupled to a lower end surface of the second moving head, and a second It may include a second lifting arm for arbitrarily coupling the head side and the second screw.

The first angle adjustment unit is coupled to one end of the support rod and includes a first adjustment bolt for limiting the linear movement and rotation angle of the support rod, and the second angle adjustment unit is coupled to the other end of the support rod and the linear movement and rotation angle of the support rod. It may include a second adjustment bolt for limiting.

According to the embodiment of the present invention, when the laser beam is irradiated to the surface of the steel sheet in the permanent magnetic domain refining process of the grain-oriented electrical steel sheet, foreign substances that have fallen on the surface of the steel sheet can be removed from the surface of the steel sheet in advance before moving to a later process.

That is, a foreign material removal device is installed on the surface of the steel sheet under the laser irradiation facility so that the dust and molten iron lumps generated during laser beam irradiation are not compressed between the second deflectrol and the steel sheet in the post-process of the laser irradiation process. By removing it, it is possible to prevent damage to the steel plate and prevent accidents such as quality deterioration and breakage of the steel plate.

In addition, when there is no laser beam irradiation from the laser irradiation facility even during the operation of the magnetic domain refinement facility of the grain-oriented electrical steel sheet by the removing member exchange unit, the foreign material removing member can be replaced.

1 is a schematic perspective view of a foreign material removal device of a grain-oriented electrical steel sheet according to an embodiment of the present invention.
Figure 2 is a schematic partial side view of the foreign matter removal device of the grain-oriented electrical steel sheet 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 substances of a grain-oriented electrical steel sheet according to an embodiment of the present invention, and FIG. 2 is a schematic partial side view of an apparatus for removing foreign substances of a grain-oriented electrical steel sheet according to an embodiment of the present invention.

1 and 2, the foreign material removal device (hereinafter referred to as a foreign material removal device for convenience) of a grain-oriented electrical steel sheet according to an embodiment of the present invention, the steel sheet (1) surface in the permanent magnetic domain refining process of the grain-oriented electrical steel sheet When irradiated with a laser beam, foreign substances that have fallen on the surface of the steel sheet 1 are removed from the surface of the steel sheet 1 in advance before moving to a post-process.

The foreign material removal device may be installed in the laser irradiation section in the permanent magnetic domain refinement process section. In this embodiment, the foreign material removal apparatus may be provided in a laser room where a laser irradiation facility is installed, for example, the first deflector 10 and the second on which the steel plate 1 to be formed by the laser beam is supported. It may be installed between the deflectors 20 .

That is, the foreign material removal device is irradiated to the steel plate 1 by a laser irradiation facility (not shown) disposed above the steel plate 1 between the first deflector 10 and the second deflector 20 to produce Foreign substances falling on the surface of the steel plate 1 that have passed through the first deflector 10 may be removed in advance before passing through the second deflector 20 .

The laser beam 11 emitted from the laser oscillator (not shown) of the laser irradiation facility is irradiated to the steel plate 1 supported by the first deflector 10 through an optical system (not shown), and the surface of the steel plate 1 By creating a groove in the laser groove irradiation line 13 is generated.

The foreign material removal device of the grain-oriented electrical steel sheet, the foreign material removal member 100, the removal member support part 200, the first height adjustment part 300, the second height adjustment part 400, the removal member exchange part 500, the first It may include a first angle adjusting unit 600 , and a second angle adjusting unit 700 .

The foreign material removing member 100 is disposed between the first deflector 10 and the second deflector 20 , and can remove foreign substances that have come into contact with the steel sheet 1 and have fallen on the surface of the steel sheet 1 . .

The removing member support 200 may be coupled to the foreign material removing member 100 and include a support rod 210 for supporting the foreign material removing member 100 in contact with the surface of the steel plate 1 .

The first height adjustment unit 300 and the second height adjustment unit 400 are installed at both ends of the support rod 210, and the height of both ends of the support rod 210 (the length in the Y direction in FIG. 1) with respect to the installation surface, respectively. can be adjusted

In addition, the removal member exchange unit 500 is coupled to the removal member support unit 200, and is installed to be spaced apart from the steel plate 1 to enable the exchange of the foreign material removal member 100 during operation of the magnetic domain refinement facility of the grain-oriented electrical steel sheet. can do.

The removal member exchange unit 500 enables the exchange of the foreign material removal member 100 when there is no laser beam irradiation from the laser irradiation facility (not shown) even during operation of the magnetic domain refinement facility of the grain-oriented electrical steel sheet.

In addition, the first angle adjusting unit 600 and the second angle adjusting unit 700 are coupled between both ends of the support rod 210 and the first and second height adjusting units 300 and 400, and the steel plate (1). The angle of the foreign material removal member 100 with respect to the surface and the side can be adjusted.

The foreign material removing member 100 is disposed to form an angle θ set with respect to the surface of the steel plate 1 and extends to one end of the contact plate 110 and is in contact with the contact plate 110 in contact with the steel plate 1 . A support plate 120 for supporting the plate 110 may be included.

The removal member support 200 may include a support frame 220 coupled to the support rod 210 and for supporting the support plate 120 of the foreign material removal member 100 to the support rod 210 .

The support rod 210 and the support frame 220 are disposed along the width (W) direction (Z direction in FIG. 1) of the steel plate 1 at a set interval on the upper surface of the steel plate 1, but on the surface of the steel plate 1 In order to facilitate the removal of foreign substances from the steel plate 1 may be inclined at a set angle (α) with respect to the side portion.

In addition, the removal member support 200 is installed under the support plate 120 of the foreign material removal member 100, and a support pad for supporting the support plate 120 while buffering the impact of the foreign material removal member 100 ( 230) may be included.

On one side of the support rod 210 , the foreign material removed by the foreign material removing member 100 is prevented from leaving (scattering) into the space between the foreign material removing member 100 and the second deflector 20 . A plate 250 may be installed.

In addition, the foreign material separation prevention plate 250 may be disposed to be inclined at an angle α set with respect to the side portion of the steel sheet 1 along the width (W) direction of the steel sheet 1 so as to prevent effective separation of the foreign material. .

The foreign material separation prevention plate 250 may include an extension plate 260 extending while being bent in the direction of the support rod 210 from the upper end thereof to prevent the foreign material from being separated more effectively.

In addition, in the inner side of both side surfaces of the steel plate 1, a limit setting line 5 for preventing plate breakage at the crack site when the steel plate edge part crack 3 is severe may be set, and the limit setting line 5 is It may be set at a distance (t) set along the width (W) of the steel plate (1) from both sides of the steel plate (1).

In addition, a plurality of support rods 210 are disposed at intervals set in the longitudinal direction, and a gas such as air or nitrogen is sprayed toward the surface of the steel plate 1 to remove the foreign matter removing member 100 , the support frame 220 , and the support pad 230 . A spray nozzle 260 for removing foreign substances attached to or accumulated on the back may be installed.

In addition, the first height adjustment unit 300 is coupled to the first rotation shaft 301, the first rotation shaft 301, which are manually rotated by the driving of the first drive motor 310 or the first handle 320, and The first gear unit 330 may include a first gear unit 330 for converting the rotational motion of the first rotational shaft 301 into a linear movement in a direction perpendicular to the first rotational shaft 301 (the Y-direction in FIG. 1 ).

The first height adjustment unit 300 is coupled to the first gear unit 330 and a first spindle 340 for ascending and descending in a direction orthogonal to the first rotation shaft 301 by the first gear unit 330; and a first screw 350 installed at the upper end of the first spindle 340 and raised and lowered together with the first spindle 340 .

A first bearing part 360 for rotatably supporting the first spindle 340 may be installed in a central portion of the first spindle 340 .

The second height adjustment unit 400 is coupled to the second rotation shaft 401 and the second rotation shaft 401 that are manually rotated by the driving of the second driving motor 410 or the second handle 420 and the second The second gear unit 430 may include a second gear unit 430 that converts the rotational motion of the rotational shaft 401 into a linear movement in a direction perpendicular to the second rotational shaft 401 (the Y-direction in FIG. 1 ).

In addition, the second height adjustment unit 400 is coupled to the second gear unit 430 and a second spindle 440 for ascending and descending in a direction orthogonal to the second rotation shaft 401 by the second gear unit 430 . ), and a second screw 450 installed at the upper end of the second spindle 440 and raised and lowered together with the second spindle 440 .

A second bearing part 460 for rotatably supporting the second spindle 440 may be installed at a central portion of the second spindle 440 .

By the first height adjusting unit 300 and the second height adjusting unit 400, the height of one end of the support bar 210 with respect to the installation surface and the height of the other end of the support bar 210 are set to be the same or set differently. can

That is, when the height of one end of the support bar 210 with respect to the installation surface and the height of the other end of the support bar 210 are the same, the foreign material removing member 100 and the removing member supporting part 200 are on the surface of the steel plate 1 . indicates a horizontal state.

When the height of one end of the support bar 210 with respect to the installation surface is higher or lower than the height of the other end of the support bar 210, one end of the support bar 210 toward the other end at an angle set with respect to the surface of the steel plate 1 By disposing at an angle, the foreign material removed by the foreign material removing member 100 may flow down to the outside of both ends of the steel plate 1 .

And, by setting a downward inclination angle of the surface of the steel plate 1 with respect to the moving direction (arrow direction in FIG. 1) of the steel plate 1, the foreign substances removed by the foreign material removal member 100 are made to flow down by themselves along the inclination angle. can

The removal member exchange unit 500 is coupled to the support frame 220 , and includes an exchange frame 510 having an insertion unit 511 for inserting a combination of the foreign material removal member 100 and the support pad 230 . can do.

In addition, the removal member exchange unit 500 may include at least one guide bolt 240 for removably coupling the support pad 230 and the support plate 120 of the foreign material removal member 100 to each other. can

The removal member exchange unit 500 is installed in the insertion unit 221 of the support frame 220 , and may include a frame guide 520 for guiding the insertion of the guide bolt 240 .

The first angle adjusting unit 600 is a first moving head 610 into which one end of the support rod 210 is movably inserted, and an arbitrary rotation in a coupling groove (not shown) of the lower surface of the first moving head 610 . It may include a first head shaft 620 having a first ball head (not shown) that is possibly inserted and coupled.

In addition, the first angle adjustment unit 600 is a first lifting arm 630 for arbitrarily coupling the first head side 620 and the first screw 350 by the first hinge shaft 631 arbitrarily. ) may be included.

The first angle adjustment unit 600 is coupled to one end of the support rod 210 , and may include a first adjustment bolt 640 for limiting the linear movement and rotation angle of the support rod 210 .

The head portion of the first adjustment bolt 640 may be disposed at a set interval from one end of the first moving head 610 to easily limit the rotation angle of the support rod 210 .

The second angle adjusting unit 700 is provided in a coupling groove (not shown) of a second moving head 710 into which the other end of the support rod 210 is movably inserted, and a lower surface of the second moving head 710 . It may include a second head shaft 720 having a second ball head (not shown) that is arbitrarily rotatably inserted and coupled.

The second angle adjustment unit 700 includes a second lifting arm 730 for arbitrarily rotatably coupling the second head side 720 and the second screw 450 by the second hinge shaft 731 . may include

The second angle adjustment unit 700 is coupled to the other end of the support rod 210 and may include a second adjustment bolt 740 for limiting the linear movement and rotation angle of the support rod 210 .

The head portion of the second adjustment bolt 740 may be disposed at a set interval from the other end of the second moving head 710 so as to easily limit the rotation angle of the support rod 210 .

In addition, the first angle adjusting unit 600 or the second angle adjusting unit 700 by adjusting the rotation angle of the support rod 210 with respect to the first moving head 610 or the second moving head 710, the steel plate ( The angle of the foreign material removal member 100 with respect to the surface and side of 1) can be adjusted.

In addition, the first driving motor 310 of the first height adjusting unit 300 and the second driving motor 410 of the second height adjusting unit 400 are a foreign material removing member for controlling the position of the foreign material removing member 100 . It may be connected to the position control system 30 .

In addition, the foreign material removal member position control system 30 may be connected to the steel plate support roll position control system 40 for controlling the position of the steel plate support roll.

Hereinafter, with reference to FIGS. 1 and 2, the operation of the foreign material removal device of the grain-oriented electrical steel sheet according to an embodiment of the present invention will be described.

The foreign material removal device of the grain-oriented electrical steel sheet is installed between the first deflector 10 and the second deflector 20 to remove the foreign material falling on the surface of the steel sheet 1 that has passed through the first deflector 10. After laser irradiation, it may be removed in advance before passing through the second deflector 20 .

That is, the laser beam 11 from the laser oscillator (not shown) of the laser irradiation facility is irradiated to the surface of the steel plate 1 supported by the first deflector 10 through an optical system (not shown), and the steel plate 1 ) to create a groove.

At this time, foreign substances such as dust and molten iron lumps generated when a groove is created on the surface of the steel sheet 1 by irradiation with the laser beam 11 are scattered and fall on the surface of the steel sheet 1, some of which are located on the bottom of the optical system (not shown) or It grows into a lump attached to a dust collecting hood (not shown) and falls on the steel plate 1 by a molten iron removal device.

In this way, foreign substances falling on the surface of the steel plate 1 may be removed from the surface of the steel plate 1 by being in contact with the foreign material removing member 100 .

That is, the foreign material removing member 100 is disposed between the first deflector 10 and the second deflector 20, is supported by the removing member support 200, and comes into contact with the steel plate 1 to contact the steel plate ( 1) Foreign substances that have fallen on the surface can be removed.

As shown in FIG. 2 , the contact plate 110 of the foreign material removal member 100 is disposed to form an angle θ set with respect to the surface of the steel plate 1 , and the support plate 120 is the contact plate 110 . It may extend to one end to support the contact plate 110 .

In addition, the support rod 210 and the support frame 220 are disposed along the width (W) direction (Z direction in FIG. 1) of the steel plate 1 at a set interval on the upper surface of the steel plate 1, but the steel plate 1 ), since it is inclined at a set angle (α) with respect to the side portion, it is possible to easily remove foreign substances from the surface of the steel plate (1).

The removing member support 200 includes a support rod 210 coupled to the foreign material removing member 100 to support the foreign material removing member 100 in contact with the surface of the steel plate 1 .

In addition, since the support pad 230 is installed under the support plate 120 in the removal member support 200 , it is possible to support the support plate 120 while buffering the impact of the foreign material removal member 100 .

And, the removal member exchange unit 500 is coupled to the removal member support unit 200, and even during the operation of the magnetic domain refinement facility of the grain-oriented electrical steel sheet, when there is no laser beam irradiation from the laser irradiation facility (not shown), the foreign material removal member ( 100) can be exchanged.

That is, as shown in FIG. 2 , the assembly of the foreign material removal member 100 and the support pad 230 may be inserted into the insertion part 511 of the exchange frame 510 coupled to the support frame 220 .

In addition, when replacement with a new foreign material removing member 100 is necessary due to damage to the foreign material removing member 100 , after taking out the combination of the damaged foreign material removing member 100 and the support pad 230 from the insertion unit 511 , , the new foreign material removal member 100 and the support pad 230, the combination of which you want to exchange, is inserted into the insertion part 511 .

At this time, the coupling of the foreign material removing member 100 and the support pad 230 can form a combined body when the guide bolt 240 is fastened, and when the fastening of the guide bolt 240 is released, the foreign material removing member 100 and the support pad 230 are released. The pad 230 may be separated.

In addition, the first height adjustment unit 300 and the second height adjustment unit 400 are installed at both ends of the support rod 210, the height of both ends of the support rod 210 with respect to the installation surface (the length in the Y direction in Fig. 1) can be adjusted individually.

For example, by adjusting the first height adjusting unit 300 and the second height adjusting unit 400, the height of one end of the support bar 210 with respect to the installation surface and the height of the other end of the support bar 210 are set to be the same or It can be set differently.

That is, by adjusting the first height adjustment unit 300 or the second height adjustment unit 400, the height of one end of the support rod 210 with respect to the installation surface and the height of the other end of the support rod 210 are adjusted to be the same. In this case, the foreign material removing member 100 and the removing member supporting part 200 are in a horizontal state with respect to the surface of the steel plate (1).

In addition, when the height of one end of the support bar 210 with respect to the installation surface is set higher or lower than the height of the other end of the support bar 210, one end of the support bar 210 is on the surface of the steel plate 1 toward the other end. Since it is inclined at a set angle, the foreign material removed by the foreign material removing member 100 can flow down to the outside of both ends of the steel plate 1 .

Then, the surface of the steel plate 1 is set at a downward inclination angle with respect to the moving direction (arrow direction in FIG. 1) of the steel plate 1, and the foreign matter removed by the foreign material removing member 100 is removed by the inclination angle of the steel plate 1 You can let it flow down by itself.

The case of adjusting the height of the first height adjusting unit 300 will be described as an example, but the same method may be applied to the case of adjusting the height of the second height adjusting unit 400 .

That is, when the first driving motor 310 is driven or the first rotating shaft 301 is manually rotated by the first handle 320 at an angle set in a clockwise direction, for example, the rotation of the first rotating shaft 301 is performed. The motion is converted into a linear motion in a direction perpendicular to the first rotation shaft 301 (the Y direction in FIG. 1 ), and the first spindle 340 and the first screw 350 are raised by a set length.

As such, when the first spindle 340 and the first screw 350 are raised by a set length, the height of one end of the support rod 210 by the first angle adjusting unit 600 coupled to the first screw 350 . is adjusted to be higher than the height of the other end of the support rod 210 by the length set with respect to the surface of the steel plate 1 from the installation surface.

Accordingly, when the height of one end of the support rod 210 is adjusted to be higher than the other end of the support rod 210 by the first height adjusting unit 300 , the support rod 210 and the support frame 220 are moved from one end to the other end. Towards the end it is inclined downward at a set angle with respect to the surface of the steel plate 1 .

Conversely, if the first driving motor 310 is driven or the first rotating shaft 301 is manually rotated by the first handle 320 at an angle set counterclockwise, for example, the first rotating shaft 301 is The rotational motion of is converted into a linear motion in a direction perpendicular to the first rotational shaft 301 (Y direction in FIG. 1 ), and the first spindle 340 and the first screw 350 are lowered by a set length.

As such, when the first spindle 340 and the first screw 350 are lowered by a set length, the height of one end of the support rod 210 by the first angle adjusting unit 600 coupled to the first screw 350 . is adjusted to be lower than the height of the other end of the support rod 210 by the length set for the surface of the steel plate 1 from the installation surface.

Accordingly, when the height of one end of the support rod 210 is adjusted to be lower than the other end of the support rod 210 by the first height adjusting unit 300 , the support rod 210 and the support frame 220 are moved from one end to the other end. It is inclined upward at an angle set with respect to the surface of the steel plate 1 towards the end.

In addition, either one of the first height adjusting unit 300 and the second height adjusting unit 400 is individually adjusted on one side of the steel plate 1 , or the first height adjusting unit 300 on both sides of the steel plate 1 . ) and the second height adjustment unit 400 are both adjustable, of course.

In addition, the angle of one end and the other end of the support rod 210 may be adjusted by the first angle adjusting unit 600 and the second angle adjusting unit 700 .

The case of adjusting the angle of one end of the support rod 210 by the first angle adjusting unit 600 is described as an example, but in the case of adjusting the angle of the other end of the supporting rod 210 by the second angle adjusting unit 700 . can be applied in the same way.

That is, one end of the support rod 210 is movably inserted into the first moving head 610 of the first angle adjusting unit 600 , and the lower ends of the first moving head 610 and the first moving head 610 . The first ball head (not shown) of the first head shaft 620 is arbitrarily rotatably inserted and coupled to the coupling groove (not shown) of the surface.

In addition, since the first lifting arm 630 arbitrarily rotatably couples the first head side 620 and the first screw 350 by the first hinge shaft 631 , the angle of one end of the support rod 210 . A first ball head (not shown) may be finely adjusted around a coupling groove (not shown) of the first moving head 610 .

In addition, the first adjustment bolt 640 of the first angle adjustment unit 600 may be coupled to one end of the support rod 210 to limit the linear movement and rotation angle of the support rod 210 .

That is, the first adjustment bolt 640 limits the linear movement of one end of the support rod 210 , and the head portion of the first adjustment bolt 640 limits the rotation angle with respect to the first moving head 610 to the set angle. can

In this way, the position of the support rod 210 is adjusted by using the first height adjusting unit 300 , the second height adjusting unit 400 , the first angle adjusting unit 600 , and the second angle adjusting unit 700 . By doing so, it is possible to adjust the contact distance between the foreign material removing member 100 and the surface of the steel plate 1 .

In addition, the first driving motor 310 of the first height adjusting unit 300 and the second driving motor 410 of the second height adjusting unit 400 are operated by a foreign material removal member position control system 30 and a steel plate support roll position control system. By connecting to (40), it is possible to precisely adjust the contact distance between the foreign material removing member 100 and the surface of the steel plate (1).

In addition, since the foreign material separation prevention plate 250 is installed on one side of the support rod 210 , the foreign material removed by the foreign material removing member 100 is removed between the foreign material removing member 100 and the second deflector 20 . It can prevent escape (scattering) into space.

And, since the limit setting line 5 is set inside the both side surfaces of the steel plate 1, when the steel plate edge part crack 3 is severely generated, it is possible to prevent plate breakage of the crack part.

In addition, since a plurality of injection nozzles 260 are installed in the support rod 210 at intervals set in the longitudinal direction, gas such as air and nitrogen is sprayed toward the surface of the steel plate 1 to remove the foreign matter removing member 100 and the support frame 220 . ), it is possible to effectively remove foreign substances attached to or accumulated on the support pad 230 .

Therefore, by installing a foreign material removal device on the surface of the steel plate under the optical system, the dust and molten iron lumps generated during laser beam irradiation are compressed between the second deflector 20 and the steel plate 1 in the post-process of the laser irradiation process. By removing it in advance so that it does not occur, damage to the steel plate 1 can be prevented and accidents such as quality deterioration and breakage of the steel plate can be prevented in advance.

In addition, when there is no irradiation of the laser beam 11 from the laser irradiation facility even during the operation of the magnetic domain refinement facility of the grain-oriented electrical steel sheet by the removing member exchange unit 500, the foreign material removing member 100 can be replaced.

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.

1: steel plate 10: first deflectrol
20: second deflector 100: foreign matter removal member
200: removing member support 210: support bar
220: support frame 230: support pad
240: guide bolt 250: foreign matter separation prevention plate
300: first height adjustment unit 400: second height adjustment unit
500: removal member exchange unit 600: first angle adjustment unit
700: second angle adjustment unit

Claims (12)

A foreign material removal member disposed in the laser irradiation section to remove foreign substances that have come into contact with the steel sheet and have fallen on the surface of the steel sheet;
A removal member support unit coupled to the foreign material removal member and having a support rod for supporting the foreign material removal member in contact with the surface of the steel plate;
A first height adjusting part and a second height adjusting part installed at both ends of the support bar, for respectively adjusting the height of both ends of the support bar with respect to the installation surface, and
A removal member replacement part coupled to the removal member support part and installed to be spaced apart from the steel plate to enable exchange of the foreign material removal member
A device for removing foreign substances from grain-oriented electrical steel sheets comprising a. According to claim 1,
A first angle adjustment part and a second angle adjustment part coupled between both ends of the support rod and the first height adjustment part and the second height adjustment part, and for adjusting the angle of the foreign material removal member with respect to the surface and the side surface of the steel plate A device for removing foreign substances from grain-oriented electrical steel sheets including a part. 3. The method of claim 2,
The removal member support portion is coupled to the support rod, a support frame for supporting the foreign material removal member, and
A foreign material removal device for grain-oriented electrical steel sheet installed on the lower portion of the foreign material removal member, and comprising a support pad for buffering the impact of the foreign material removal member. According to claim 1,
The foreign material removing member is disposed between the first and second deflectors on which the steel plate is supported,
A foreign material removal device of a grain-oriented electrical steel sheet is installed on one side of the support rod to prevent the foreign material from being separated into the space between the foreign material removing member and the second deflector. 5. The method of claim 4,
A foreign material removal device for grain-oriented electrical steel sheet in which a plurality of injection nozzles for spraying gas toward the surface of the steel sheet are installed at a set interval on the support rod. 4. The method of claim 3,
The first height adjustment unit, a first rotation shaft manually rotated by the drive of the first drive motor or the first handle,
A first gear unit coupled to the first rotating shaft and converting the rotational motion of the first rotating shaft into linear motion;
a first spindle coupled to the first gear unit and elevating in a direction perpendicular to the first rotation axis by the first gear unit; and
A foreign material removal device for grain-oriented electrical steel sheet including a first screw installed on the upper end of the first spindle, and lifted together with the first spindle. 7. The method of claim 6,
The second height adjustment unit, a second rotation shaft manually rotated by the drive of the second drive motor or the second handle,
a second gear unit coupled to the second rotating shaft and converting the rotational motion of the second rotating shaft into linear motion;
a second spindle coupled to the second gear unit and elevating in a direction orthogonal to the second rotation axis by the second gear unit; and
A foreign material removal device for grain-oriented electrical steel sheet including a second screw installed at the upper end of the second spindle and lifted together with the second spindle. 8. The method of claim 6 or 7,
The removal member exchange unit is coupled to the support frame, the foreign material removal device of the grain-oriented electrical steel sheet comprising an exchange frame having an insert for inserting the assembly of the foreign material removal member and the support pad. 9. The method of claim 8,
The removal member exchange unit, at least one guide bolt for removably coupling the support pad and the foreign material removal member, and
It is installed in the insertion part of the support frame, the foreign material removal device of the grain-oriented electrical steel sheet comprising a frame guide for guiding the insertion of the guide bolt. 10. The method of claim 9,
The first angle adjusting unit, a first moving head into which one end of the support rod is movably inserted;
a first head shaft having a ball head arbitrarily rotatably inserted and coupled to a lower end surface of the first moving head; and
A foreign material removal device for grain-oriented electrical steel sheet including a first lifting arm for arbitrarily coupling the first head side and the first screw. 11. The method of claim 10,
The second angle adjusting unit, a second moving head into which the other end of the support rod is movably inserted;
a second head shaft having a second ball head that is arbitrarily rotatably inserted and coupled to a lower end surface of the second moving head, and
A foreign material removal device for grain-oriented electrical steel sheet comprising a second lifting arm for arbitrarily coupling the second head side and the second screw. 12. The method of claim 11,
The first angle adjustment unit is coupled to one end of the support rod, and includes a first adjustment bolt for limiting the linear movement and rotation angle of the support rod,
The second angle adjustment unit is coupled to the other end of the support rod, the foreign matter removal device of the grain-oriented electrical steel sheet comprising a second adjustment bolt for limiting the linear movement and rotation angle of the support rod.

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