JP2018534216A - Foreign matter removal device - Google Patents

Abstract

The present invention relates to a foreign matter removing device for removing foreign matter adhering to the surface of a rotating roll such as a strip transport roll, the foreign matter removing device comprising: a housing disposed in a width direction of a target object; and the housing A foreign matter drop-off means for dropping off foreign matter on the surface of the rotating subject, and disposed in the housing so as to form a gap with the subject, and supplying air to the gap at least, An air induction unit that guides foreign matter that has fallen from the object to the inside of the housing. With such a configuration, it is possible to achieve the effect of completely removing foreign matters over the entire width of the strip transport roll.

Description

  The present invention relates to a foreign matter removing device, and more particularly to a foreign matter removing device for removing foreign matter attached to the surface of a rotating roll such as a strip transport roll.

  Usually, a strip that is rolled into a thin plate shape is supported by a number of rolls and continuously processed to produce products that meet the requirements of consumers. .

  Here, the role of transmitting the strip to various processes is performed by a transport facility composed of a large number of transport rolls.

  However, since such a transport roll is made of urethane or the like, there is a problem that a large amount of foreign matter adheres to or clogs the surface after a certain period of time.

  Such foreign matter may cause a dent such as a concavo-convex defect on the surface of the transported strip and cause subsequent problems.

  Conventionally, in order to solve such a problem, after fixing the fixed blade to the surface of the strip transport roll, the magnesium oxide (fixed to the surface of the strip transport roll is rotated by rotating the transport roll ( Foreign matter such as (MgO) powder was removed.

  However, when removing foreign matter by a conventional method, there is a problem that foreign matter such as the magnesium oxide powder is not completely removed from the surface of the transport roll.

  In addition, foreign matter that has detached from the transport roll also falls on the top surface of the strip to be transported and comes into contact with the transport roll again, forming a groove due to the foreign matter on the surface of the transport roll, thereby inducing defects. There is also the problem of doing.

  The present invention was devised to solve the above-described problems, and after removing foreign matter adhering to the surface of the strip conveying roll, it can be collected and discharged to the outside completely. It is an object of the present invention to provide a foreign object removing device that can perform such a process.

  In order to achieve the above object, a foreign matter removing apparatus according to a preferred embodiment of the present invention includes a housing disposed in a width direction of a target object, and a surface of the target object that is provided in the housing and rotates. Foreign matter removal means for removing the foreign matter, and the housing is arranged so as to form a gap with the object, and by supplying air to the gap, at least the foreign matter that has fallen from the object is removed from the housing. And an air induction unit for inducing inside.

  The air induction unit is provided in the housing and has a main body in which a chamber for storing air flowing in from the outside is formed, and is disposed in the main body. An air knife that guides the air to be discharged to the outside, and is formed to protrude from the main body toward the target body to form the gap, and is formed at least on a curved surface so that high-speed air injected from the lip gap adheres and flows. And a guiding member to be included.

  The foreign matter drop-off means can be constituted by a scraper that comes into contact with the surface of the object to be dropped and removes the foreign matter.

  The scraper may be fastened to a base block that is hinged to the housing and rotates within a certain angular range.

  The base block may have an inclined surface so that air flowing through the scraper through the gap is guided into the housing.

  The foreign matter drop-off means may be constituted by a wide-area nozzle unit that ejects fluid to the entire region in the width direction of the subject body so as to drop the foreign matter attached to the subject body.

  More specifically, the wide-area nozzle unit includes a nozzle body member connected to a fluid supply line, and an inclined tap that is obliquely coupled to the nozzle body member so as to inject fluid obliquely to the object. And a member.

  The wide-area nozzle unit may further include a vertical tap member that is vertically coupled to the nozzle body member so as to eject a fluid perpendicularly to the object.

  The inclined tap member may be provided between the plurality of vertical tap members.

  The wide-area nozzle unit may further include a drive cylinder coupled to the housing and coupled to the linearly moving rod to reciprocate the nozzle body member in the width direction of the object. .

  Here, the air induction unit may be configured as a pair and disposed above and below the wide area nozzle unit.

  The foreign matter drop-off means may be constituted by a foreign matter removing roll that is rotatably fastened to the housing and rotated by a drive unit, and comes into contact with the surface of the object to be dropped.

  The foreign matter removing roll may be configured by spirally winding a fiber rope that drops foreign matter by contact with the object.

  Alternatively, the foreign matter removing roll may be configured such that a foreign matter removing groove having a spiral shape is formed on the surface.

  Further, the foreign matter removing roll has a fiber rope spirally wound on the surface for removing the foreign matter by contact with the object, and the foreign matter removing groove is formed in a spiral shape separated from the fiber rope. May be configured.

  Here, the air induction unit may be configured as a pair and disposed above and below the foreign matter removing roll.

  The drive unit includes a drive motor that generates rotational power, a drive pulley that is rotated by the drive motor, and a belt that connects the rotary shaft on one side of the foreign matter removing roll and the drive pulley. Good.

  The foreign matter removing apparatus may further include a control unit that is electrically connected to the drive motor of the drive unit and controls the rotational speed of the foreign matter removing roll.

  Further, the foreign matter removing device includes a base plate disposed at a lower portion of the housing, a slide panel that is slidably movable in the front-rear direction at an upper portion of the base plate, and the housing is fastened via a support base, And a slide panel driving unit that slides the slide panel.

  The foreign matter removing apparatus may further include a control unit that is electrically connected to the slide panel driving unit and controls a forward / backward moving speed of the slide panel.

  Here, the control unit may control the slide panel driving unit so that the foreign matter removing roll repeatedly contacts or separates from the subject body to drop the foreign matter on the surface of the subject body. .

  The foreign matter removing apparatus may further include a discharge unit that is disposed inside the housing and collects foreign matter guided to the inside of the housing and discharges the foreign matter to the outside.

  More specifically, the discharging means is arranged in the width direction of the housing, and a collecting part in which a plurality of holes are formed on the foreign substance drop-off means side to suck in foreign substances, and one side of the collecting part And a discharge unit connected to the end to provide suction input and discharge the foreign matter sucked into the collecting unit to the outside.

  And the said collection part is comprised by the pipe shape which has a hollow part, and it may be formed in the taper shape so that the internal diameter of the said hollow part may become small as it progresses from the said one side end to the other side end.

  Here, the object can be constituted by a strip transport roll through which the strip passes.

According to the foreign matter removing apparatus of the present invention, it is possible to achieve the effect of completely removing foreign matter over the entire width direction of the strip transport roll.

  And according to this invention, since the foreign material which fell from the strip conveyance roll can be collected completely and discharged | emitted outside, there exists an effect which prevents that a foreign material adheres to a strip conveyance roll again.

1 is a perspective view schematically showing a state in which a foreign matter removing device according to an embodiment of the present invention is installed. 1 is a perspective view schematically showing a foreign matter removing apparatus according to an embodiment of the present invention. 1 is a cross-sectional view schematically illustrating a foreign matter removing apparatus according to an embodiment of the present invention. It is sectional drawing which showed roughly the operation state of the foreign material removal apparatus by embodiment of this invention. FIG. 3 is a cross-sectional view schematically showing the I-I ′ region of FIG. 2 by cutting. In the foreign substance removal apparatus by embodiment of this invention, it is the interpretation result which showed air flow velocity distribution roughly. It is the perspective view which showed schematically the foreign material removal apparatus by other embodiment of this invention. FIG. 6 is a partially separated perspective view schematically showing a foreign matter removing apparatus according to another embodiment of the present invention. It is sectional drawing which showed roughly the operation state of the foreign material removal apparatus by other embodiment of this invention. It is sectional drawing which showed roughly the operation state of the foreign material removal apparatus by further another embodiment of this invention. FIG. 6 is a perspective view schematically showing a foreign substance removing roll extracted in a foreign substance removing apparatus according to still another embodiment of the present invention. It is the front view which showed schematically the foreign material removal apparatus by further another embodiment of this invention. FIG. 6 is a side view schematically showing a foreign matter removing apparatus according to still another embodiment of the present invention.

  In order that the features of the present invention can be easily understood, a foreign substance removing apparatus according to an embodiment of the present invention will be described in detail below.

  In order to understand the embodiments described below, the same reference numerals are given to the components in the attached drawings, and the same components have the same as much as possible even if they are displayed on other drawings. Note that it has a sign. Further, in describing the present invention, when it is determined that a specific description of the known configuration or function may obscure the gist of the present invention, the detailed description thereof is omitted.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view schematically showing a state in which a foreign matter removing apparatus according to an embodiment of the present invention is installed, and FIG. 2 is a perspective view schematically showing the foreign matter removing apparatus. FIG. 3 is a sectional view schematically showing the foreign matter removing apparatus, and FIG. 4 is a sectional view schematically showing an operation state of the foreign matter removing apparatus. FIG. 5 is a cross-sectional view schematically showing the I-I 'region of FIG. FIG. 6 is an interpretation result schematically showing the air flow velocity distribution in the foreign matter removing apparatus.

  Referring to FIGS. 1 to 6, a foreign matter removing apparatus 100 according to an embodiment of the present invention includes a housing 210 disposed in a width direction of a target object, and a surface of the target object that is provided in the housing 210 and rotates. The foreign matter removal means for removing the foreign matter is disposed in the housing 210 so as to form a gap G with the object. By supplying air to the gap G, the air converged on the gap G is diverged. In addition, the air induction unit 300 that guides the dropped foreign matter to the inside of the housing 210 is included.

  Here, the object can be a strip transport roll 10 through which a strip passes. The target object from which foreign matter can be removed by the foreign matter removing apparatus 100 of the present invention is not limited to a strip transport roll, but any roll that rotates like a rolling roll, a continuous casting roll, or the like. Needless to say, the foreign matter removing apparatus 100 can be installed to remove foreign matter on the surface of the roll. Below, the conveyance roll 10 is described as the said target object.

  In particular, when the transport roll 10 is a transport roll that transports a strip after high-temperature secondary annealing in the production process of electrical steel sheet products, unreacted MgO powder adheres to the surface of the strip after high-temperature secondary annealing. Therefore, such powder adheres to the transport roll 10 and causes problems such as dents.

  The foreign matter removing apparatus 100 of the present invention is arranged on the strip conveyance roll 10 and after dropping the powder (foreign matter) fixed to the conveyance roll 10, it can be completely sucked and discharged to the outside. it can. Also, the powder (foreign matter) that falls off the transported strip can be sucked and removed together.

  The field of application of the foreign matter removing apparatus 100 of the present invention is not limited to this, and can be applied to any field as long as it is necessary to remove foreign matter on the surface of the rotating roll. Needless to say.

  The foreign matter drop-off means can be configured by a scraper 220 that comes into contact with the surface of the transport roll 10 that is the subject to drop the foreign matter.

  The scraper 220 is formed to be at least equal to or larger than the length of the transport roll 10 and has an end portion that is shaped like a blade. That is, the scraper 220 is configured such that the end portion thereof is in close contact with the surface of the transport roll 10 and foreign matter is dropped from the surface of the rotating transport roll 10. The shape of the scraper 220 is not limited to this, and it is needless to say that the scraper 220 may be configured in any form as long as foreign matter can be removed from the surface of the transport roll 10.

  The scraper 220 may be fastened to a base block 230 that is hinged to the housing 210 and rotates within a certain angle range.

  Here, the scraper 220 is fastened to the lower surface of the base block 230, and the base block 230 is inclined so that air flowing through the scraper 220 through the gap G is guided into the housing 210. A surface 231 can be formed.

  Further, the base block 230 may be formed such that the end 232 has a curved shape. In the drawing, a part of the end 232 of the base block 230 is shown to have a curved shape, but the entire end 232 of the base block 230 may be formed to have an arc shape.

  The shape of the base block 230 is such that air in the lower part of the scraper 220 is also guided into the housing 210 by high-speed air flow guided through the gap G and guided into the housing 210. Therefore, the air flowing from the lower part of the scraper 220 to the inside of the housing 210 can be smoothly guided by forming the end 232 of the base block 230 in a curved shape.

  The air induction unit 300 is disposed above the scraper 220 in the housing 210 and supplies high-speed air to the gap G formed with the transport roll 10. When high-speed air is supplied to the gap G, the air is converged in the gap G to form a high-pressure air layer. The high-pressure air layer thus formed pressurizes the scraper 220. Finally, the scraper 220 comes into close contact with the surface of the transport roll 10 at a constant pressure, and foreign matters on the surface of the transport roll 10 can be dropped off more effectively.

  Here, the pressure of the air converged at the gap G by the air induction unit 300 reaches about 10 to 15 times the pressure of the air supplied to the air induction unit 300.

  And the air which passed the said gap G expand | swells while diverging, and temperature falls. The air whose temperature has thus decreased can cool the scraper 220 and the transport roll 10. That is, when the scraper 220 is brought into close contact with the rotating transport roll 10, frictional heat is generated to reduce the life of the transport roll 10 and the scraper 220. The transport roll 10 and the scraper 220 can be cooled without using a cooling device.

  Furthermore, since the air is moved to the inside of the housing 210 at the lower part of the scraper 220 by being guided by high-speed air flowing through the gap G and flowing inside the housing 210, It is possible to collect the foreign matter dispersed in the inside of the housing 210 more effectively.

  More specifically, the air guiding unit 300 is provided in the housing 210 and is disposed in the main body 310 in which a chamber 311 in which air flowing in from the outside is stored is formed. And an air knife 320 for guiding the air in the chamber 311 to be discharged to the outside by forming a lip gap L, and protruding from the main body 310 toward the transport roll 10 to form the gap G, and the lip gap And a guide member 330 formed at least on a curved surface so that high-speed air jetted from L adheres and flows.

  The main body 310 is formed to be at least as long as or longer than the transport roll 10, and is disposed in the width direction of the transport roll 10 with a certain distance from the transport roll 10. The main body 310 is formed with a chamber 311 in which air is introduced and stored from the outside.

  The chamber 311 is formed by a hollow portion inside the main body 310 and is formed to penetrate through the upper portion of the main body 310. The chamber 311 is connected to an external air supply line 20, and air with a constant pressure is supplied to the chamber 311.

  The air knife 320 is provided on the upper part of the main body 310 so as to cover the opened side of the chamber 311 and is disposed so as to open only a part of the chamber 311. That is, the air knife 320 forms a lip gap L with the chamber 311 and discharges air supplied to the chamber 311 at high speed. Here, the lip gap L may be about 50 to 100 μm.

  The guide member 330 protrudes from the main body 310 toward the transport roll 10 to form a gap G with the transport roll 10, and is curved so that high-speed air injected from the lip gap L adheres and flows. Formed. That is, high-speed air injected from the lip gap L adheres to the guide member 330 and flows due to the Coanda effect, so that high-speed air is guided into the housing 210. Here, the guide member 330 may be configured separately and fastened to the main body 310, or may be formed integrally with the main body 310.

  Here, the guide member 330 can be formed in various forms having an inclined surface such as a curved surface (curved surface), a folded surface, or a polygonal surface, but is preferably formed in a curved surface.

  An embodiment of the operation state of the air induction unit 300 configured as described above will be described. The transport roll 10 rotates at a speed of 170 m / min and flows into the chamber 311 of the main body 310 at a flow rate of 0.03 kg / s. When air is supplied, the air passing through the lip gap L is jetted at a high speed of 372 m / s, adheres to the guide member 330 and is guided to the gap G. When high-speed air flows into the gap G, the surrounding air is converged on the gap G, and the flow rate of air passing through the gap G corresponds to 0.37 kg / s. Accordingly, the flow rate of air passing through the gap G increases to about 12 times the flow rate of air supplied to the chamber 311.

  FIG. 6 shows an analysis of the flow velocity distribution of air generated in the foreign substance removal apparatus 100 and the flow velocity distribution of air generated around the foreign substance removal apparatus 100 by finite element analysis.

  When the temperature of the air supplied to the chamber 311 is 60 ° C., the temperature of the air that has passed through the lip gap L rapidly drops to 0.6 ° C. due to instantaneous adiabatic expansion. The air thus cooled can cool the scraper 220 and the transport roll 10.

  A discharging means 400 is disposed inside the housing 210 so as to collect foreign substances guided to the inside of the housing 210 and discharge them to the outside.

  The discharging means 400 is disposed in the length direction of the housing 210, and has a collecting portion 410 in which a plurality of holes are formed on the scraper 220 side and foreign matter is sucked, and one end of the collecting portion 410. The discharge unit 420 is connected to provide suction input, and discharges foreign matter sucked into the collection unit 410 to the outside.

  Although not shown in the drawing, a suction pump (not shown) is connected to the discharge part 420 and provides suction to the collection part 410 and the discharge part 420, thereby collecting the collection part 410. It can be configured to inhale foreign matter flowing into the air and discharge it to the outside.

  Here, the collection part 410 is formed in a pipe shape having a hollow part 411, and a plurality of holes 412 are formed on the side facing the scraper 220 so that the foreign matter dropped from the transport roll 10 flows in. It is formed. The hollow portion 411 may be tapered so that the inner diameter decreases from the one side end to the other side end. In other words, the collection unit 410 is formed such that the diameter of one side end to which the discharge unit 420 is connected is larger than the diameter of the other side end on the opposite side, and becomes lower as it proceeds from the other side end to the one side end. A slope is formed. Accordingly, when suction is provided from the discharge unit 420, the foreign matter stored in the collection unit 410 can easily move toward the discharge unit 420 along the inclined surface. Can be improved.

  7 and 8 are a perspective view and a partially separated perspective view schematically showing a foreign substance removing device according to another embodiment of the present invention, and FIG. 9 schematically showing an operating state of the foreign substance removing device. It is sectional drawing.

  Referring to FIGS. 7 to 9, a foreign matter removing apparatus 110 according to another embodiment of the present invention has the same configuration as the foreign matter removing apparatus 100 according to the embodiment of the present invention described with reference to FIGS. Only the dropping means is different.

  More specifically, the foreign substance dropping means of the foreign substance removing apparatus 110 according to another embodiment of the present invention has a width of the strip conveyance roll 10 so as to drop the foreign substance attached to the strip conveyance roll 10 that is the subject. A wide-area nozzle unit 500 that ejects fluid to the entire area in the direction can be used.

  Here, “wide area” means that, unlike the conventional case, the area to be ejected is expanded by ejecting fluid in an oblique direction by the wide area nozzle unit 500.

  More specifically, the wide-area nozzle unit 500 is coupled obliquely to the nozzle body member 510 connected to the fluid supply line and the nozzle body member 510 so as to inject the fluid obliquely to the strip transport roll 10. An inclined tap member 520.

  Thus, by being configured to inject the fluid obliquely, it is possible to expand the injection region of the fluid to be injected onto the strip conveyance roll 10.

  In other words, when assuming that the portion where the fluid is ejected is a cross section of a column, the cross section of the column applies the principle that a cross section cut in an oblique direction is formed wider than a cross section cut in a vertical direction. Thus, the wide-area nozzle unit 500 is configured.

  Here, the nozzle body member 510 serves as a body of the wide-area nozzle unit 500 and receives a supply of the fluid to be ejected and transmits the fluid to the inclined tap member 520.

  That is, the nozzle body member 510 is connected to a fluid supply line that supplies air, cooling water, or the like, and the inclined tap member 520 is coupled to one side. It can be transmitted to the member 520.

  The nozzle body member 510 is connected to the driving cylinder 540 and may be configured to move in one direction of the strip transport roll 10 from which the fluid is ejected. Thereby, the jetting region of the jetted fluid can be expanded to a wider range with a time difference.

  More specifically, the drive cylinder 540 is coupled to the housing 210, and the nozzle body member 510 is coupled to the linearly moving rod 541, so that the nozzle body member 510 is reciprocated in the width direction of the strip transport roll 10. Can be configured to let The configuration for reciprocating the nozzle body member 510 is not limited to this, and it goes without saying that various conventional driving devices can be applied.

  The inclined tap member 520 plays a role of injecting the fluid to the strip conveying roll 10 in an oblique direction. For this, the inclined tap member 520 may be obliquely coupled to the nozzle body member 510. In other words, the inclined tap member 520 is configured to be coupled so that the injection holes are provided in a direction inclined by a certain angle with a direction in which the nozzle body member 510 and the strip transport roll 10 face each other.

  The inclined tap member 520 is coupled to the nozzle body member 510 in an oblique direction, so that the spray area of the fluid sprayed to the strip transport roll 10 can be increased.

  In addition, the wide-area nozzle unit 500 may further include a vertical tap member 530 that is vertically coupled to the nozzle body member 510 so as to eject fluid vertically to the strip transport roll 10.

  When the vertical tap member 530 is provided as described above, the vertical tap member 530 ejects fluid to a portion where the fluid ejection region is not formed by the inclined tap member 520, thereby further expanding the fluid ejection region. Therefore, the fluid can be ejected over the entire surface of the strip conveyance roll 10.

  In addition, the inclined tap member 520 of the wide-area nozzle unit 500 may be provided between the vertical tap members 530 provided in plurality.

  In other words, even when a plurality of inclined tap members 520 are provided to form a wide jet region, there may be a region where no fluid is ejected between the plurality of inclined tap members 520. The vertical tap member 530 is provided between the plurality of inclined tap members 520 so that the vertical tap member 530 ejects fluid in the region.

  With such a configuration, when the wide-area nozzle unit 500 ejects a fluid onto the surface of the strip transport roll 10 to drop off foreign matter from the surface of the strip transport roll 10, the fallen foreign matter is removed from the interior of the housing 210 by the air induction unit 300. And can be removed.

  At this time, the air induction unit 300 is configured as a pair and can be disposed above and below the wide-area nozzle unit 500. That is, the wide-area nozzle unit 500 is disposed at the center, and the air guiding units 300 are disposed above and below, so that foreign matters that fall off from the strip transport roll 10 can be more effectively removed.

  FIG. 10 is a cross-sectional view schematically showing an operating state of a foreign matter removing apparatus according to still another embodiment of the present invention, and FIG. 11 is a perspective view schematically showing a foreign matter removing roll extracted from the foreign matter removing apparatus. It is. FIG.12 and FIG.13 is the front view and side view which showed the said foreign material removal apparatus roughly.

  Referring to FIGS. 10 to 13, a foreign matter removing apparatus 120 according to another embodiment of the present invention has the same configuration as the foreign matter removing apparatus 100 according to the embodiment of the present invention described with reference to FIGS. 1 to 6. Only the foreign substance dropout means is different.

  More specifically, the foreign substance drop-off means of the foreign substance removal apparatus 120 according to still another embodiment of the present invention is rotatably fastened to the housing 210 and rotated by the driving unit 620, and is a strip that is the surface of the object. It can be configured by a foreign matter removing roll 610 that comes into contact with the transport roll 10 and removes foreign matter.

  The foreign matter removing roll 610 is configured to be rotated by the driving unit 620, and a fiber rope 611 that drops foreign matter by contact with the strip conveying roll 10 can be spirally wound on the surface. Alternatively, the foreign matter removing roll 610 may have a spiral foreign matter removing groove 612 formed on the surface thereof. Further, the fiber rope 611 may be spirally wound around the surface of the foreign matter removing roll 610, and the foreign matter removing groove 612 may be spirally formed apart from the fiber rope 611. That is, when the foreign matter removing roll 610 is viewed from the length direction, the fiber rope 611 and the foreign matter removing groove 612 can be alternately arranged.

  For example, two grooves are formed in a spiral shape on the surface of the foreign matter removing roll 610, and a fiber rope 611 is wound around one of the two grooves, whereby the fibers for the foreign matter removing roll 610 are The fastening force of the rope 611 can be increased. The remaining groove is configured as a foreign matter removing groove 612. After the foreign matter dropped by the fiber rope 611 is accommodated in the foreign matter removing groove 612, the foreign matter is dropped in the form of a cake by the rotation of the foreign matter removing roll 610. Can be removed.

  The driving unit 620 includes a driving motor 621 that generates rotational power, a driving pulley 622 that is rotated by the driving motor 621, a rotating shaft 613 on one side of the foreign matter removing roll 610, and a belt 623 that connects the driving pulley 622. And can be configured. The controller 630 may further include a controller 630 that is electrically connected to the drive motor 621 of the driver 620 and controls the rotational speed of the foreign matter removing roll 610.

  Here, the foreign matter removing roll 610 is rotated in the same direction as the rotational direction of the strip conveying roll 10 to increase the frictional force. That is, the foreign matter removing roll 610 and the strip transport roll 10 rotate in opposite directions, so that the frictional force can be increased and foreign matters can be effectively dropped off.

  Further, by controlling the rotational speed of the foreign matter removing roll 610 to be slower than the rotational speed of the strip transport roll 10, the frictional force applied to the strip transport roll 10 can be further increased.

  Further, the foreign matter removing apparatus 120 according to another embodiment of the present invention includes a base plate 640 disposed at a lower portion of the housing 210, and a sliding support in the front-rear direction at the upper portion of the base plate 640. A slide panel 642 to which the housing 210 is fastened, and a slide panel driving unit 620 that slides the slide panel 642 may be further included. Here, the controller 630 is electrically connected to the slide panel driver 620 and can control the forward / reverse speed of the slide panel 642.

  The control unit 630 controls the slide panel driving unit 620 so that the foreign matter removing roll 610 repeatedly contacts or separates from the strip transport roll 10 to drop the foreign matter on the surface of the strip transport roll 10. May be.

  That is, the housing 210 connected via the support base 641 can be moved in the front-rear direction while the slide panel 642 installed on the upper portion of the base plate 640 slides in the front-rear direction. The foreign matter removal roll 610 installed on the front surface is moved in the front-rear direction, so that the effect of removing the foreign matter is maximized by periodically repeating the work of separating the strip removal roll 610 from the strip conveying roll 10 and then bringing it into close contact again. Can do. Here, the controller 630 may control the forward / backward movement speed of the slide panel 642.

  With such a configuration, when the foreign matter removal roll 610 rotates and contacts the surface of the strip transport roll 10, and the foreign matter is removed from the surface of the strip transport roll 10, the fallen foreign matter is removed from the housing 210 by the air induction unit 300. It can flow into the interior and be removed.

  At this time, the air induction unit 300 is configured as a pair and can be disposed above and below the foreign matter removing roll 610. That is, the foreign matter removing roll 610 is arranged at the center, and the air guiding unit 300 is arranged above and below, so that foreign matters that fall off from the strip conveying roll 10 can be more effectively removed.

As described above, the present invention has been described based on the limited embodiments and the drawings. However, the present invention is not limited to this, and the technology of the present invention can be obtained by a person having ordinary knowledge in the technical field to which the present invention belongs. It goes without saying that various modifications and variations can be made within the scope of ideas and the scope of the appended claims.

Claims (25)

A housing arranged in the width direction of the object;
Foreign matter drop-off means that is provided in the housing and drops off foreign matters on the surface of the rotating subject.
An air induction unit that is disposed in the housing so as to form a gap with the object, and at least introduces foreign matter that has fallen off the object by supplying air to the gap. Including foreign matter removal device. The air induction unit is
A body provided in the housing and formed with a chamber for storing air flowing in from the outside;
An air knife disposed in the main body and guiding the chamber to form a lip gap and exhaust the air in the chamber to the outside;
A guide member that is formed to protrude from the main body toward the target body to form the gap, and that is formed at least on a curved surface so that high-speed air jetted from the lip gap adheres and flows. The foreign matter removing apparatus according to claim 1.   The foreign matter removing apparatus according to claim 1, wherein the foreign matter dropping means is configured by a scraper that comes into contact with the surface of the object to be dropped and removes the foreign matter.   4. The foreign matter removing apparatus according to claim 3, wherein the scraper is fastened to a base block that is hinged to the housing and rotates within a certain angular range.   5. The foreign object removal according to claim 4, wherein the base block has an inclined surface so that air flowing through the scraper through the gap is guided into the housing. apparatus.   The foreign object drop-out means is configured by a wide-area nozzle unit that ejects fluid to the entire area in the width direction of the target object so as to drop out the foreign object attached to the target object. The foreign matter removing apparatus according to 1. The wide area nozzle unit is
A nozzle body member coupled to the fluid supply line;
The foreign matter removing apparatus according to claim 6, further comprising an inclined tap member that is obliquely coupled to the nozzle body member so as to inject the fluid obliquely to the object. The wide area nozzle unit is
The foreign matter removing apparatus according to claim 7, further comprising a vertical tap member that is vertically coupled to the nozzle body member so as to eject a fluid perpendicularly to the object.   The foreign matter removing apparatus according to claim 8, wherein the inclined tap member is provided between the plurality of the vertical tap members. The wide area nozzle unit is
The apparatus according to claim 7, further comprising a drive cylinder coupled to the housing and coupled to the linearly moving rod to reciprocate the nozzle body member in the width direction of the object. The foreign matter removing apparatus described.   The foreign matter removing apparatus according to claim 6, wherein the air guiding unit is configured as a pair and is disposed above and below the wide area nozzle unit.   The foreign matter drop-off means is configured by a foreign matter removing roll that is rotatably fastened to the housing and is rotated by a driving unit to come into contact with the surface of the object to be removed. The foreign matter removing apparatus according to 1.   The foreign matter removing apparatus according to claim 12, wherein the foreign matter removing roll has a foreign matter removing groove having a spiral shape formed on a surface thereof.   The foreign matter removing apparatus according to claim 12, wherein the foreign matter removing roll has a fiber rope spirally wound on a surface thereof to drop the foreign matter by contact with the object.   The foreign matter removing roll has a fiber rope spirally wound on the surface for removing the foreign matter by contact with the object, and the foreign matter removing groove is formed in a spiral shape separated from the fiber rope. The foreign matter removing apparatus according to claim 12, wherein:   The foreign matter removing apparatus according to claim 12, wherein the air guiding unit is configured as a pair and is disposed above and below the foreign matter removing roll. The drive unit is
A drive motor that generates rotational power;
A drive pulley that is rotated by the drive motor;
The foreign matter removing apparatus according to claim 12, further comprising a belt connecting the rotary shaft on one side of the foreign matter removing roll and the drive pulley.   The foreign matter removing apparatus according to claim 17, further comprising a control unit that is electrically connected to a driving motor of the driving unit and controls a rotational speed of the foreign matter removing roll. A base plate installed at a lower portion of the housing and supporting the housing via a support;
A slide panel that is slidably movable in the front-rear direction at the top of the base plate, and to which the housing is fastened;
The foreign matter removing apparatus according to claim 12, further comprising a slide panel driving unit that slides the slide panel.   The foreign matter removing apparatus according to claim 19, further comprising a control unit that is electrically connected to the slide panel driving unit and controls a forward / reverse speed of the slide panel.   The control unit controls the slide panel driving unit so that the foreign matter removing roll repeatedly contacts or separates from the subject body to drop the foreign matter on the surface of the subject body. The foreign matter removing apparatus according to claim 20.   The foreign matter removing apparatus according to claim 1, further comprising a discharge unit that is disposed inside the housing and collects and discharges foreign matter guided to the inside of the housing. The discharging means is
A collecting portion that is disposed in the width direction of the housing and has a plurality of holes formed on the foreign matter drop-off means side to suck in foreign matter;
23. The exhaust system according to claim 22, further comprising: a discharge unit connected to one end of the collection unit to provide suction input and discharging foreign matter sucked into the collection unit to the outside. Foreign matter removal device.   The collecting part is formed in a pipe shape having a hollow part, and an inner diameter of the hollow part is formed in a tapered shape so as to decrease from the one side end to the other side end. Item 24. The foreign matter removing apparatus according to Item 23. The foreign object removing apparatus according to claim 1, wherein the object is a strip conveyance roll through which a strip passes.

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