WO2023068848A1 - Surface inspection device for steel plate - Google Patents

Surface inspection device for steel plate Download PDF

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Publication number
WO2023068848A1
WO2023068848A1 PCT/KR2022/016050 KR2022016050W WO2023068848A1 WO 2023068848 A1 WO2023068848 A1 WO 2023068848A1 KR 2022016050 W KR2022016050 W KR 2022016050W WO 2023068848 A1 WO2023068848 A1 WO 2023068848A1
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WO
WIPO (PCT)
Prior art keywords
steel plate
grindstone
unit
surface inspection
guide frame
Prior art date
Application number
PCT/KR2022/016050
Other languages
French (fr)
Korean (ko)
Inventor
원성연
최강혁
안성한
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Publication of WO2023068848A1 publication Critical patent/WO2023068848A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints

Definitions

  • the present invention relates to a surface inspection apparatus for a steel sheet, and more particularly, to a surface inspection apparatus for a steel sheet capable of quickly and precisely inspecting the surface of a steel sheet subjected to a surface treatment such as plating.
  • large and small defects may occur on the surface of the steel sheet during the process of manufacturing, transporting, winding, or storing the steel sheet.
  • the size that can be confirmed with the naked eye of the operator can be inspected manually by the operator or relatively smoothly by using an inspection device.
  • a grindstone is used to inspect and detect micro-defects on the surface of the steel sheet. A method of polishing the surface is used.
  • the present embodiment is intended to provide a steel sheet surface inspection device capable of precisely detecting defects on the surface of the steel sheet.
  • the present embodiment is intended to provide a steel sheet surface inspection device capable of quickly and easily detecting defects on the surface of the steel sheet.
  • This embodiment is intended to provide a steel sheet surface inspection device capable of improving the quality and competitiveness of the steel sheet.
  • the present embodiment is intended to provide a surface inspection device for a steel plate capable of improving the safety of workers and working environments.
  • This embodiment is intended to provide a steel sheet surface inspection device that can promote efficiency in the steel sheet production process and quality control process.
  • the polishing unit having a grindstone for polishing the surface of the steel plate; a first movement unit for moving the polishing unit in a direction parallel to the longitudinal direction of the steel plate; and a second moving unit for moving the polishing unit and the first moving unit in a direction parallel to the width direction of the steel plate, wherein the polishing unit includes a grindstone bracket holding the grindstone, and the grindstone and the grindstone bracket. It may be provided by including a drive cylinder that moves forward or backward toward the surface of the steel plate, and a link member interposed between the grindstone bracket and the drive cylinder and rotatably supporting the grindstone bracket.
  • the polishing unit further includes a grindstone frame having one side connected to the first moving unit and the other side supporting the drive cylinder, one end of the drive cylinder being connected to the rear surface of the grindstone bracket, and one part of the grindstone frame It can be supported on the grindstone frame.
  • the polishing unit may further include an elastic support for elastically supporting the grindstone and the grindstone bracket on the grindstone frame.
  • the elastic support may include at least one elastic member having one end supported on the rear surface of the grindstone bracket and the other end supported on the grindstone frame.
  • the elastic member is provided as a coil spring, and the elastic support is disposed inside the coil spring and extends in a direction parallel to the expansion and contraction direction of the drive cylinder.
  • One end is connected to the rear side of the grindstone bracket, and the other end is It may be provided by further including a guide rod connected to the grindstone frame side.
  • the link member may be provided including a ball joint.
  • a housing frame that forms the body and is provided in a hexahedron shape with an empty inside so that the steel plate passes and is transported.
  • the first moving unit is provided between a first driving unit for receiving power and generating power, a first guide frame extending along the longitudinal direction of the steel plate, and between the polishing unit and the first guide frame.
  • 1 may include a first gear unit for receiving power from a driving unit and moving the polishing unit along the first guide frame.
  • the second moving unit is provided between a second drive unit for receiving power and generating power, a second guide frame extending along the width direction of the steel plate, and between the first guide frame and the second guide frame,
  • a second gear unit may be provided to receive power from the second driving unit and move the first guide frame along the second guide frame.
  • the second moving unit may further include a mounting bracket supporting the second guide frame to the housing frame.
  • a dust collection unit for collecting dust generated by the contact between the steel plate and the grindstone.
  • the dust collecting unit may include a dust collecting hood having an inlet open toward the grindstone, and the dust collecting hood may be supported at a lower end of the first guide frame.
  • the dust collecting unit has one side connected to the dust collecting hood and the other side connected to the suction device, and a pipe made of a flexible material, and a third guide frame extending along the arrangement direction of the pipe to guide movement and deformation of the pipe More may be provided.
  • the polishing unit and the first and second moving units may be provided as a pair to be mounted on one side and the other side of the housing frame, respectively.
  • the pair of polishing units and the first and second moving units may be disposed to face each other on one side and the other side of the steel plate.
  • a control unit controlling operations of the polishing unit, the first and second moving units, and the dust collecting unit may be further included.
  • the steel sheet surface inspection apparatus has an effect of precisely detecting defects existing on the steel sheet surface.
  • the steel sheet surface inspection apparatus has an effect of quickly and easily detecting defects existing on the surface of the steel sheet.
  • the steel sheet surface inspection apparatus has an effect of improving the quality and competitiveness of the steel sheet.
  • the steel sheet surface inspection apparatus has an effect of improving the safety of the operator and the working environment.
  • the steel sheet surface inspection apparatus has an effect of improving the efficiency of the steel sheet production process and quality control process.
  • FIG. 1 is a perspective view showing a surface inspection apparatus for a steel sheet according to a first embodiment of the present invention.
  • FIG. 2 is a front view showing a surface inspection apparatus for a steel sheet according to a first embodiment of the present invention.
  • FIG. 3 is a cross-sectional view in the direction A-A' of FIG. 2 .
  • FIG. 4 is a BB′ direction cross-sectional view of FIG. 2 .
  • FIG. 5 is an enlarged view of part C of FIG. 4 .
  • FIG. 6 is a front view showing a surface inspection apparatus for a steel sheet according to a second embodiment of the present invention.
  • FIG. 7 is an enlarged perspective view of a dust collecting hood according to a second embodiment of the present invention.
  • FIG. 8 is a cross-sectional view in the direction D-D′ of FIG. 6 .
  • FIG. 1 is a perspective view showing a surface inspection device 100 for a steel sheet according to a first embodiment of the present invention
  • FIG. 2 is a front view showing the surface inspection device 100 for a steel sheet according to a first embodiment of the present invention.
  • 3 and 4 are cross-sectional views in the direction A-A' and B-B' of FIG. 2, respectively.
  • the steel plate surface inspection apparatus 100 includes a housing frame 110 forming a body and a grindstone G for polishing the surface of the steel plate S
  • a polishing unit 120 having a, a first moving unit 130 for moving the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S, the polishing unit 120 and the first moving unit 130 It may be provided including a second moving unit 140 for moving the steel plate S in a direction parallel to the width direction and a control unit (not shown) for controlling the operation of each unit.
  • the housing frame 110 forms the body of the device, and may be provided in a hexahedral shape with an empty interior so that the steel plate S can enter from the upper side and pass downward.
  • the housing frame 110 can be equipped with and supported by various component elements such as the polishing unit 120, the first and second moving units 130 and 140 to be described later, and on the corner of the hexahedral shape to ensure sufficient rigidity. It can be manufactured with a plurality of frame members installed in.
  • the housing frame 110 can be installed in various structures that can be supported on the steel plate (S) production facility. For example, if you want to check the micro-bonding present on the surface of the steel plate (S) after plating, the housing frame 110 ) may be installed at the rear end of the plating facility.
  • the steel sheet surface inspection apparatus 100 includes a housing frame ( 110) may be disposed on one side and the other side, respectively, and the pair of polishing units 120 and the pair of first and second moving units 130 and 140 are arranged and operated to face each other, so that the steel plate ( It is possible to simultaneously perform polishing and defect detection on one side and the other side of S).
  • the present invention is not limited thereto, and the surface inspection apparatus 100 for a steel sheet according to the first embodiment of the present invention includes a polishing unit 120 described later according to the type of the target steel sheet S or the required degree of inspection work, and the first And the same can be understood even when the second moving units 130 and 140 are disposed in one set on either side of the housing frame 110 to perform the polishing operation and the defect detection operation on only one side of the steel plate S. .
  • the polishing unit 120 is provided to stably contact and polish the grindstone G on the surface of the steel plate S.
  • the polishing unit 120 is a grindstone (G) for polishing the steel plate (S) by contacting the surface of the steel plate (S). And, a grindstone bracket 121 for holding the grindstone G, a drive cylinder 122 for advancing or retracting the grindstone G and the grindstone bracket 121 toward the surface of the steel plate S, and the grindstone G
  • Various parts of the polishing unit 120 including an elastic supporter 123 for elastically supporting the grindstone bracket 121, a link member 124 for flexibly supporting the grindstone bracket 121, and a drive cylinder 122 It may include a grindstone frame 125 for connecting and supporting the element to the first moving unit 130 to be described later.
  • the front side (upper side with reference to FIG. 5) of the grindstone (G) is disposed to face the surface of the steel plate (S), and the rear side (lower side with reference to FIG. 5) is gripped or supported by the grindstone bracket (121).
  • the grindstone (G) can be polished by contacting the surface of the steel plate (S) when the drive cylinder 122 is extended, which will be described later, and through this, micro-defects present on the surface of the steel plate (S) can be detected more quickly. .
  • the front surface (upper surface based on FIG. 5 ) of the grindstone (G) protrudes toward the steel plate (S) toward the center so that it can stably maintain contact with the surface of the steel plate (S) even if a bend occurs in the steel plate (S).
  • a link that flexibly supports the grindstone bracket 121 on which the grindstone G is gripped so that contact between the grindstone G and the surface of the steel plate S can be stably achieved despite the vibration or shaking of the steel plate S.
  • a member 124 may be provided. A detailed description of this will be described later.
  • the grindstone bracket 121 is provided in a plate shape, and the grindstone G is gripped and supported on the front surface (upper side with reference to FIG. 5), and the link member 124 can be connected to the rear surface (lower side with reference to FIG. 5). there is.
  • the grindstone bracket 121 can advance or retreat the grindstone G toward the surface of the steel plate S by the extension operation of the drive cylinder 122 .
  • the drive cylinder 122 has a front side end (upper end with reference to FIG. 5) connected to the rear surface of the grindstone bracket 121 via a link member 124, and a part of the other side of the grindstone frame ( 125) can be fixed and supported.
  • An elastic support 123 to be described later is provided in the grindstone bracket 121 to support the grindstone G elastically. A detailed description of this will be given later.
  • the drive cylinder 122 has a front end (upper end in reference to FIG. 5) connected to the rear surface of the grindstone bracket 121 via a link member 124, and a part of the other side to the grindstone frame 125. Can be fixed and supported.
  • the driving cylinder 122 may be provided as a hydraulic cylinder. As the working fluid flows into the hydraulic cylinder, the drive cylinder 122 extends and the grindstone bracket 121 moves forward so that the grindstone G can approach and come into close contact with the surface of the steel plate S, and on the contrary, it works from the hydraulic cylinder. As the fluid is discharged, the drive cylinder 122 is reduced and the grindstone bracket 121 retreats, so that the grindstone G can be separated from the surface of the steel plate S.
  • the driving cylinder 122 may be expanded and contracted based on an operator's input signal through a control panel (not shown), and in addition, extended and contracted operations may be operatively performed by a control unit (not shown). .
  • the control unit detects the hydraulic pressure of the working fluid applied to the drive cylinder 122, and controls the operation of the drive cylinder 122 based on this, so that the adhesion between the grindstone (G) and the steel plate (S) surface or the grindstone (G) The pressing force of can be induced within a preset numerical range. Through this, the reliability and precision of the grinding stone G and the defect detection process can be improved.
  • the grindstone (G) can be supported elastically by the elastic supporter 123 that is caught on the grindstone bracket 121.
  • the adhesion or pressing force of the grindstone G to the surface of the steel plate S can be primarily adjusted by controlling the operation of the drive cylinder 122, but as mentioned above, the steel plate S is transported in the process. Since vibration or shaking of (S) occurs, the adhesion or pressing force between the grindstone (G) and the steel plate (S) may deviate from a predetermined value. Accordingly, by performing the polishing operation in a state where the elastic support 123 elastically supports the grindstone G, the adhesion or pressing force between the grindstone G and the steel plate S can be secondarily finely adjusted.
  • a pair of grindstone brackets 121 may be arranged along the forward/backward direction, and at least one elastic support 123 may be interposed between the pair of grindstone brackets 121 and provided.
  • Each elastic supporter 123 has both ends extending in parallel with the elastic member 123a supported by the pair of grindstone brackets 121 and the extension direction of the driving cylinder 122 or the forward and backward direction of the grindstone bracket 121. It may include a guide rod (123b) for guiding the compression and expansion deformation of the elastic member (123a).
  • the elastic member 123a may be provided as a coil spring 123a, and the guide rod 123b may be disposed inside the coil spring 123a, but both ends may be connected between a pair of grindstone brackets 121.
  • both ends of the guide rod 123b are the inner surfaces of the pair of grindstone brackets 121 so that the interval between the pair of grindstone brackets 121 can be smoothly changed according to the compression and expansion of the coil spring 123a.
  • Each of the guide grooves 123c formed recessed into may be provided to be retractable.
  • the elastic member 123a on one side is compressed while the elastic member 123a on the other side expands, so that the surface of the steel plate S It is possible to suppress and minimize the adhesion or pressing force of the grindstone (G) out of a predetermined range, and furthermore, the precision of grinding work and the reliability of defect detection can be improved.
  • the elastic member 123a is grafted and described when it is provided as a coil spring 123a, but it is not limited to that structure, and if the grindstone G can be elastically supported, the rubber member Of course, it can be provided with various structures and devices such as leaf springs.
  • the link member 124 is interposed between the grindstone bracket 121 and the drive cylinder 122 to maintain a more stable contact between the surface of the steel plate S and the grindstone G, and rotates the grindstone bracket 121. can support
  • Link member 124 may be provided as a ball joint (124). Specifically, the ball member 124a may protrude from the rear surface of the grindstone bracket 121 (based on FIG. 5), and the front end of the drive cylinder 122 (upper end based on FIG. 5). A casing 124b in which the ball member 124a is introduced and rotatably accommodated may be provided. In addition, although not shown in the drawing, the link member 124 is interposed between the ball member 124a and the casing 124b to reduce noise or wear due to contact between the outer surface of the ball member 124a and the inner surface of the casing 124b. A bushing or rubber bushing may be additionally included.
  • the link member 124 rotatably supports the grindstone G and the grindstone bracket 121 holding it with respect to the drive cylinder 122, so that the grindstone G despite the vibration or shaking of the steel plate S It is possible to stably maintain contact between the surface of the steel plate S.
  • the first moving unit 130 is provided to move the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S. By reciprocating the polishing unit 120 by the operation of the first moving unit 130, the grindstone G can perform polishing on the surface of the steel plate S along the longitudinal direction or the moving direction.
  • the first moving unit 130 includes a first driving unit 131 for generating power by receiving power, a first guide frame 132 extending along the longitudinal direction or moving direction of the steel plate S, and a polishing unit.
  • a first gear unit 133 provided between the 120 and the first guide frame 132 and moving the polishing unit 120 along the first guide frame 132 using power provided from the first driving unit 131 ) may be included.
  • the first driving unit 131 may receive power from the outside through a power cable or receive power from a built-in power supply such as a battery to provide power for the movement of the polishing unit 120 .
  • the first driving unit 131 may be provided with an electric motor or the like to generate rotational force, but is not limited to the corresponding structure or device.
  • the operation of the first drive unit 131 may be controlled based on an operator's input signal through a control panel (not shown), or may be operated and stopped operatively by a control unit (not shown).
  • the power provided from the first driving unit 131 may be transmitted to the first gear unit 133, and the first gear unit 133 uses the received power to follow the first guide frame 132 to the polishing unit ( 120) can be moved.
  • the first guide frame 132 may be formed extending along the longitudinal direction or the traveling direction of the steel plate S to provide a moving path of the polishing unit 120, and the first guide frame 132 includes the steel plate S ) It may be provided with a guide groove (not shown) formed recessed along the longitudinal direction or a guide rail (not shown) formed protruding along the longitudinal direction of the steel plate (S). Gear teeth may be provided in the guide groove or the guide rail to generate linear movement of the polishing unit 120 through power output from the first gear unit 133 .
  • one end of the first guide frame 132 is connected to the second gear unit 143 of the second moving unit 140 to be described later so that the first moving unit 130 moves along the width direction of the steel plate S. can A detailed description of this will be described later.
  • the first gear unit 133 may generate linear movement of the polishing unit 120 using power provided from the first driving unit 131, and may be fixed to each other so as to operate integrally with the polishing unit 120.
  • the first driving unit 131 includes a motor
  • the first gear unit 133 may include a pinion gear coupled to the rotational axis of the motor
  • the first guide frame 132 is engaged with the pinion gear. Since the rack gear is provided, the first gear unit 133 and the polishing unit 120 may move along the first guide frame 132 according to the operation of the first driving unit 131 .
  • the first guide frame 132 and the first gear unit 133 are provided by including a linear motion guide, so that the polishing unit 120 uses power provided from the first driving unit 131.
  • the second moving unit 140 is provided to move the first moving unit 130 and the polishing unit 120 mounted thereto in a direction parallel to the width direction of the steel plate S. As the polishing unit 120 and the first moving unit 130 reciprocate by the operation of the second moving unit 140, the grindstone G performs the polishing operation along the width direction on the surface of the steel plate S. can
  • the second moving unit 140 includes a second driving unit 141 for generating power by receiving power, a second guide frame 142 extending along the width direction of the steel plate S, and a first guide frame ( 132) and the second guide frame 142, and the first guide frame to which the polishing unit 120 is connected and mounted along the second guide frame 142 using power provided from the second drive unit 141 ( 132 may include a second gear unit 143 that moves.
  • the second driving unit 141 receives power from the outside through a power cable or from a built-in power supply such as a battery, and receives power for moving the first guide frame 132 to which the polishing unit 120 is connected and mounted. can provide.
  • the second drive unit 141 may be provided with an electric motor or the like to generate rotational force, but is not limited to the corresponding structure or device.
  • the operation of the second driving unit 141 is controlled based on an operator's input signal through a control panel (not shown), or operated and operated by a control unit (not shown). A stop may be made.
  • Power provided from the second drive unit 141 may be transmitted to the second gear unit 143, and the second gear unit 143 uses the received power to follow the second guide frame 142 to the polishing unit ( 120) may move the connected and mounted first guide frame 132.
  • the second guide frame 142 may extend along the width direction of the steel plate S to provide a moving path for the polishing unit 120, and the second guide frame 142 includes the width of the steel plate S.
  • a guide groove (not shown) formed recessed along the direction or a guide rail (not shown) formed protruding along the width direction of the steel plate (S) may be provided.
  • Gear teeth may be provided in the guide groove or the guide rail to generate linear movement of the first guide frame 132 in the width direction through power output from the second gear unit 143 .
  • the second guide frame 142 may be fixedly installed on top of the housing frame 110 by a plurality of mounting brackets 144 .
  • the second gear unit 143 may generate linear movement in the width direction of the polishing unit 120 and the first guide frame 132 using power provided from the second driving unit 141, and the first guide frame ( 132) and can be fixed to each other so that they can operate integrally.
  • the second drive unit 141 includes a motor
  • the second gear unit 143 may include a pinion gear coupled to the rotational shaft of the motor
  • the second guide frame 142 is engaged with the pinion gear. Since the rack gear is provided, the second gear unit 143 and the first guide frame 132 may move along the second guide frame 142 according to the operation of the second driving unit 141 .
  • the second guide frame 142 and the second gear unit 143 are provided including a linear motion guide, so that the polishing unit 120 and Of course, the linear movement of the first guide frame 132 may be stably achieved.
  • FIG. 6 is a front view showing a surface inspection apparatus 200 for a steel sheet according to a second embodiment of the present invention
  • FIG. 7 is an enlarged perspective view of a dust collecting hood 251 according to a second embodiment of the present invention.
  • FIG. 8 is a cross-sectional view in the direction DD′ of FIG. 6 .
  • the steel plate surface inspection apparatus 200 includes a housing frame 110 forming a body and a grindstone G for polishing the surface of the steel plate S
  • a polishing unit 120 having a, a first moving unit 130 for moving the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S, the polishing unit 120 and the first moving unit 130
  • a second moving unit 140 that moves in a direction parallel to the width direction of the steel plate S, a dust collection unit 250 that collects dust generated by the contact between the steel plate S and the grindstone G, and operation of each unit It may be provided including a control unit (not shown) for controlling.
  • the steel plate surface inspection apparatus 200 includes a dust collection unit 250 that collects dust generated during polishing of the surface of the steel plate S by the polishing unit 120.
  • the dust collection unit 250 includes a dust collection hood 251 into which dust generated by the contact between the grindstone G and the surface of the steel plate S is introduced or collected, and a suction device (not shown) that introduces dust into the dust collection hood 251. ), a pipe 252 connecting the dust collecting hood 251 and the suction device, and a third guide frame 253 for guiding the movement and deformation of the pipe 252 according to the movement of the dust collecting hood 251, can be provided.
  • the dust collecting hood 251 is provided to introduce and collect dust generated when the grindstone G and the surface of the steel plate S come into contact.
  • the dust collecting hood 251 is provided so that an inlet is opened toward the grindstone G, but may be formed such that a cross-sectional area is enlarged toward the inlet for more effective inflow of dust.
  • the dust collecting hood 251 since the dust collecting hood 251 is fixedly installed at the lower end of the first guide frame 132, the dust collecting hood 251 also moves when the polishing unit 120 and the first guide frame 132 move in the width direction of the steel plate S. can move together. As a result, since it is possible to perform not only the inflow and collection of dust by the suction device, but also the inflow and collection of dust by its own weight, it is possible to more stably collect dust and suppress scattering of dust into the work space.
  • the dust collecting hood 251 is connected to a suction device (not shown) by a pipe 252, and by the operation of the suction device, the dust generated by the grinding operation flows into the dust collecting hood 251 and is collected, thereby ensuring the safety of the work space. And comfort can be improved.
  • the operation of the suction device may be controlled based on an operator's input signal through an operation panel (not shown), or operation may be operatively controlled by a control unit (not shown).
  • the pipe 252 can also be smoothly moved and deformed. It may be provided with a flexible material.
  • a third guide frame 253 for guiding the movement and deformation of the pipe 252 is provided to prevent excessive deformation or load being applied to a portion of the pipe 252 when the pipe 252 is moved or deformed.
  • the third guide frame 253 may extend along the disposition direction of the pipe 252 at a position where the pipe 252 is placed. For example, as shown in FIGS. 6 and 8, considering that the dust collecting hood 251 reciprocates along the width direction of the steel plate S, the third guide frame 253 is the width of the steel plate S. Doedoe extended along the direction may be mounted on the lower side of the housing frame (110). However, the extension direction of the third guide frame 253 may be variously changed according to the direction in which the pipe 252 is placed, not limited to the corresponding formation direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

A surface inspection device for a steel plate is disclosed. The surface inspection device for a steel plate, according to an embodiment of the present invention, may be provided to comprises: a grinding unit which includes a grindstone for grinding the surface of a steel plate; a first moving unit which moves the grinding unit in a direction parallel to the lengthwise direction of the steel plate; and a second moving unit which moves the grinding unit and the first moving unit in a direction parallel to the widthwise direction of the steel plate, wherein the grinding unit includes a grindstone bracket which holds the grindstone, a drive cylinder which moves the grindstone and the grindstone bracket forward or backward toward or away from the surface of the steel plate, and a link member which is interposed between the grindstone bracket and the drive cylinder and rotatably supports the grindstone bracket.

Description

강판의 표면검사장치Steel plate surface inspection device
본 발명은 강판의 표면검사장치에 관한 것으로서, 더욱 상세하게는 도금 등과 같은 표면처리된 강판의 표면을 신속하고 정밀하게 검사할 수 있는 강판의 표면검사장치에 관한 것이다.The present invention relates to a surface inspection apparatus for a steel sheet, and more particularly, to a surface inspection apparatus for a steel sheet capable of quickly and precisely inspecting the surface of a steel sheet subjected to a surface treatment such as plating.
통상적으로, 자동차 또는 가전제품 등에 사용되는 각종 강판은 표면의 미려함과 도장 후 표면의 품질 등이 매우 중요하기 때문에, 강판의 표면품질을 검사하는 작업이 요구된다. In general, since the beauty of the surface and the quality of the surface after painting are very important for various steel sheets used in automobiles or home appliances, the work of inspecting the surface quality of the steel sheet is required.
특히 강판의 제작, 이송, 권취 또는 보관의 과정 중에서 강판의 표면에 크고 작은 결함들이 발생할 수 있다. 표면결함 중 작업자의 육안으로도 확인이 가능한 규모는 작업자가 직접 수작업으로 검사를 수행하거나 또는 검사장치를 활용하여 비교적 원활하게 검사를 수행할 수 있다. 그러나 작거나 미세한 규모의 미소 결함이 강판에 존재하거나, 특히 강판이 도금처리 된 후에는 표면의 미소 결함을 확인하는 것이 난해하므로, 이러한 표면 상 미소 결함을 검사 및 검출하기 위해 지석을 이용하여 강판의 표면을 연마하는 방식이 이용되고 있다. In particular, large and small defects may occur on the surface of the steel sheet during the process of manufacturing, transporting, winding, or storing the steel sheet. Among the surface defects, the size that can be confirmed with the naked eye of the operator can be inspected manually by the operator or relatively smoothly by using an inspection device. However, since it is difficult to identify micro-defects on the surface of a steel sheet when small or fine-scale micro-defects exist in the steel sheet, especially after the steel sheet has been plated, a grindstone is used to inspect and detect micro-defects on the surface of the steel sheet. A method of polishing the surface is used.
종래에는 강판의 표면에 존재하는 미소 결함을 검사하기 위해 강판의 생산라인 또는 이송라인을 정지시킨 상태에서 작업자가 지석을 파지한 상태로 수작업으로 강판의 표면을 연마하여 검사하는 공정이 활용되었다. 그러나 작업자의 수작업에 의해 연마작업이 이루어지므로 강판의 표면에 대해 지석의 가압정도가 일정하게 유지되는 것이 매우 어렵고, 작업자가 복수인 경우 개인 별로 지석의 파지력 또는 가압력이 상이하여 결함 검사결과에 대한 신뢰성이 저하되는 문제점이 존재한다.Conventionally, in order to inspect minute defects present on the surface of a steel sheet, a process of manually grinding and inspecting the surface of a steel sheet while a worker holds a grindstone while a steel sheet production line or a transfer line is stopped has been utilized. However, since the polishing work is performed manually by the operator, it is very difficult to maintain a constant level of pressurization of the grindstone on the surface of the steel plate, and when there are multiple workers, the gripping force or pressing force of the grindstone is different for each individual, so the reliability of the defect inspection result There is a problem of this degradation.
뿐만 아니라, 작업자가 지석을 파지한 상태에서 강판 측으로 힘을 가하여야 하므로 근골격계에 무리가 갈 뿐만 아니라, 강판의 날카로운 모서리에 의해 작업자의 신체에 상해가 발생하거나, 지석이 낙하하는 등 안전사고의 우려가 높다는 문제점이 있다. In addition, since the worker has to apply force to the steel plate while holding the grindstone, not only the musculoskeletal system is strained, but also safety accidents such as injury to the body of the worker due to the sharp edge of the steel plate or the grindstone falling There is a problem that is high.
따라서 강판의 표면에 존재하는 결함을 신속하고 정밀하게 검사 또는 검출하면서도, 작업 환경의 안전성과 작업 효율을 도모할 수 있는 방안이 요구된다.Therefore, there is a need for a method capable of promoting safety and work efficiency in a working environment while quickly and precisely inspecting or detecting defects present on the surface of a steel sheet.
본 실시 예는 강판 표면의 결함을 정밀하게 검출할 수 있는 강판의 표면검사장치를 제공하고자 한다.The present embodiment is intended to provide a steel sheet surface inspection device capable of precisely detecting defects on the surface of the steel sheet.
본 실시 예는 강판 표면의 결함을 신속하고 용이하게 검출할 수 있는 강판의 표면검사장치를 제공하고자 한다. The present embodiment is intended to provide a steel sheet surface inspection device capable of quickly and easily detecting defects on the surface of the steel sheet.
본 실시 예는 강판의 품질 및 경쟁력을 향상시킬 수 있는 강판의 표면검사장치를 제공하고자 한다.This embodiment is intended to provide a steel sheet surface inspection device capable of improving the quality and competitiveness of the steel sheet.
본 실시 예는 작업자 및 작업환경의 안전도를 향상시킬 수 있는 강판의 표면검사장치를 제공하고자 한다.The present embodiment is intended to provide a surface inspection device for a steel plate capable of improving the safety of workers and working environments.
본 실시 예는 강판 생산공정 및 품질 관리공정의 효율성을 도모할 수 있는 강판의 표면검사장치를 제공하고자 한다.This embodiment is intended to provide a steel sheet surface inspection device that can promote efficiency in the steel sheet production process and quality control process.
본 실시 예의 일 측면에 의하면, 강판의 표면을 연마시키는 지석을 구비하는 연마유닛; 상기 연마유닛을 강판의 길이 방향과 나란한 방향으로 이동시키는 제1 이동유닛; 및 상기 연마유닛 및 상기 제1 이동유닛을 강판의 폭 방향과 나란한 방향으로 이동시키는 제2 이동유닛을 포함하고, 상기 연마유닛은 상기 지석을 파지하는 지석브래킷과, 상기 지석과 상기 지석브래킷을 상기 강판의 표면을 향해 전진 또는 후퇴시키는 구동실린더와, 상기 지석브래킷과 상기 상기 구동실린더 사이에 개재되되, 상기 지석브래킷을 회전 가능하게 지지하는 링크부재를 포함하여 제공될 수 있다.According to one aspect of this embodiment, the polishing unit having a grindstone for polishing the surface of the steel plate; a first movement unit for moving the polishing unit in a direction parallel to the longitudinal direction of the steel plate; and a second moving unit for moving the polishing unit and the first moving unit in a direction parallel to the width direction of the steel plate, wherein the polishing unit includes a grindstone bracket holding the grindstone, and the grindstone and the grindstone bracket. It may be provided by including a drive cylinder that moves forward or backward toward the surface of the steel plate, and a link member interposed between the grindstone bracket and the drive cylinder and rotatably supporting the grindstone bracket.
상기 연마유닛은 일측이 상기 제1 이동유닛과 연결되고, 타측에 상기 구동실린더가 지지되는 지석프레임을 더 포함하고, 상기 구동실린더는 일단이 상기 지석브래킷의 후면에 연결되고, 어느 일 부위가 상기 지석프레임에 지지될 수 있다.The polishing unit further includes a grindstone frame having one side connected to the first moving unit and the other side supporting the drive cylinder, one end of the drive cylinder being connected to the rear surface of the grindstone bracket, and one part of the grindstone frame It can be supported on the grindstone frame.
상기 연마유닛은 상기 지석과 상기 지석브래킷을 상기 지석프레임 상에 탄력적으로 지지하는 탄성지지체를 더 포함하여 제공될 수 있다. The polishing unit may further include an elastic support for elastically supporting the grindstone and the grindstone bracket on the grindstone frame.
상기 탄성지지체는 일단이 상기 지석브래킷의 후면에 지지되고, 타단이 상기 지석프레임에 지지되는 적어도 하나의 탄성부재를 포함하여 제공될 수 있다.The elastic support may include at least one elastic member having one end supported on the rear surface of the grindstone bracket and the other end supported on the grindstone frame.
상기 탄성부재는 코일스프링으로 마련되고, 상기 탄성지지체는 상기 코일스프링의 내측에 배치되되, 상기 구동실린더의 신축 방향과 나란한 방향으로 연장 형성되어 일단이 상기 지석브래킷의 후면 측에 연결되고, 타단이 상기 지석프레임 측에 연결되는 가이드로드를 더 포함하여 제공될 수 있다.The elastic member is provided as a coil spring, and the elastic support is disposed inside the coil spring and extends in a direction parallel to the expansion and contraction direction of the drive cylinder. One end is connected to the rear side of the grindstone bracket, and the other end is It may be provided by further including a guide rod connected to the grindstone frame side.
상기 링크부재는 볼조인트를 포함하여 제공될 수 있다.The link member may be provided including a ball joint.
몸체를 형성하고, 강판이 통과 및 이송되도록 내부가 빈 육면체 형상으로 마련되는 하우징프레임을 더 포함하여 제공될 수 있다.It may be provided by further including a housing frame that forms the body and is provided in a hexahedron shape with an empty inside so that the steel plate passes and is transported.
상기 제1 이동유닛은 전원을 공급받아 동력을 발생시키는 제1 구동부와, 강판의 길이 방향을 따라 연장 형성되는 제1 가이드프레임과, 상기 연마유닛과 상기 제1 가이드프레임 사이에 마련되되, 상기 제1 구동부로부터 동력을 전달받아 상기 연마유닛을 상기 제1 가이드프레임을 따라 이동시키는 제1 기어부를 포함하여 제공될 수 있다.The first moving unit is provided between a first driving unit for receiving power and generating power, a first guide frame extending along the longitudinal direction of the steel plate, and between the polishing unit and the first guide frame. 1 may include a first gear unit for receiving power from a driving unit and moving the polishing unit along the first guide frame.
상기 제2 이동유닛은 전원을 공급받아 동력을 발생시키는 제2 구동부와, 강판의 폭 방향을 따라 연장 형성되는 제2 가이드프레임과, 상기 제1 가이드프레임과 상기 제2 가이드프레임 사이에 마련되되, 상기 제2 구동부로부터 동력을 전달받아 상기 제1 가이드프레임을 상기 제2 가이드프레임을 따라 이동시키는 제2 기어부를 포함하여 제공될 수 있다.The second moving unit is provided between a second drive unit for receiving power and generating power, a second guide frame extending along the width direction of the steel plate, and between the first guide frame and the second guide frame, A second gear unit may be provided to receive power from the second driving unit and move the first guide frame along the second guide frame.
상기 제2 이동유닛은 상기 제2 가이드프레임을 상기 하우징프레임에 지지시키는 장착브래킷을 더 포함하여 제공될 수 있다.The second moving unit may further include a mounting bracket supporting the second guide frame to the housing frame.
강판과 상기 지석의 접촉에 의해 발생되는 분진을 포집하는 집진유닛을 더 포함하여 제공될 수 있다.It may be provided by further comprising a dust collection unit for collecting dust generated by the contact between the steel plate and the grindstone.
상기 집진유닛은 입구가 상기 지석을 향해 개방되는 집진후드를 포함하고, 상기 집진후드는 상기 제1 가이드프레임의 하단에 지지될 수 있다.The dust collecting unit may include a dust collecting hood having an inlet open toward the grindstone, and the dust collecting hood may be supported at a lower end of the first guide frame.
상기 집진유닛은 일측이 집진후드에 연결되고 타측이 흡입장치에 연결되되, 유연한 재질로 마련되는 배관과, 배관의 배치 방향을 따라 연장 형성되어 상기 배관의 이동 및 변형을 안내하는 제3 가이드프레임을 더 포함하여 제공될 수 있다.The dust collecting unit has one side connected to the dust collecting hood and the other side connected to the suction device, and a pipe made of a flexible material, and a third guide frame extending along the arrangement direction of the pipe to guide movement and deformation of the pipe More may be provided.
상기 연마유닛과, 상기 제1 및 제2 이동유닛은 하우징프레임의 일측 및 타측에 각각 장착되도록 한 쌍씩 마련될 수 있다.The polishing unit and the first and second moving units may be provided as a pair to be mounted on one side and the other side of the housing frame, respectively.
한 쌍의 상기 연마유닛과, 상기 제1 및 제2 이동유닛은 강판의 일면과 타면 측에 서로 대향하게 배치될 수 있다.The pair of polishing units and the first and second moving units may be disposed to face each other on one side and the other side of the steel plate.
상기 연마유닛과, 상기 제1 및 제2 이동유닛과, 상기 집진유닛의 작동을 제어하는 제어부를 더 포함하여 제공될 수 있다.A control unit controlling operations of the polishing unit, the first and second moving units, and the dust collecting unit may be further included.
본 실시 예에 의한 강판의 표면검사장치는 강판 표면에 존재하는 결함을 정밀하게 검출하는 효과를 가진다.The steel sheet surface inspection apparatus according to the present embodiment has an effect of precisely detecting defects existing on the steel sheet surface.
본 실시 예에 의한 강판의 표면검사장치는 강판 표면에 존재하는 결함을 신속하고 용이하게 검출하는 효과를 가진다.The steel sheet surface inspection apparatus according to the present embodiment has an effect of quickly and easily detecting defects existing on the surface of the steel sheet.
본 실시 예에 의한 강판의 표면검사장치는 강판의 품질 및 경쟁력을 향상시키는 효과를 가진다.The steel sheet surface inspection apparatus according to the present embodiment has an effect of improving the quality and competitiveness of the steel sheet.
본 실시 예에 의한 강판의 표면검사장치는 작업자 및 작업환경의 안전성이 향상되는 효과를 가진다.The steel sheet surface inspection apparatus according to the present embodiment has an effect of improving the safety of the operator and the working environment.
본 실시 예에 의한 강판의 표면검사장치는 강판 생산공정 및 품질 관리공정의 효율성이 향상되는 효과를 가진다.The steel sheet surface inspection apparatus according to the present embodiment has an effect of improving the efficiency of the steel sheet production process and quality control process.
도 1은 본 발명의 제1 실시 예에 의한 강판의 표면검사장치를 나타내는 사시도이다.1 is a perspective view showing a surface inspection apparatus for a steel sheet according to a first embodiment of the present invention.
도 2는 본 발명의 제1 실시 예에 의한 강판의 표면검사장치를 나타내는 정면도이다.2 is a front view showing a surface inspection apparatus for a steel sheet according to a first embodiment of the present invention.
도 3은 도 2의 A-A' 방향 단면도이다.FIG. 3 is a cross-sectional view in the direction A-A' of FIG. 2 .
도 4는 도 2의 B-B' 방향 단면도이다.4 is a BB′ direction cross-sectional view of FIG. 2 .
도 5는 도 4의 C 부분을 확대 도시한 도면이다.FIG. 5 is an enlarged view of part C of FIG. 4 .
도 6은 본 발명의 제2 실시 예에 의한 강판의 표면검사장치를 나타내는 정면도이다.6 is a front view showing a surface inspection apparatus for a steel sheet according to a second embodiment of the present invention.
도 7는 본 발명의 제2 실시 예에 의한 집진후드를 확대 도시한 사시도이다.7 is an enlarged perspective view of a dust collecting hood according to a second embodiment of the present invention.
도 8은 도 6의 D-D' 방향 단면도이다.FIG. 8 is a cross-sectional view in the direction D-D′ of FIG. 6 .
이하에서는 본 실시 예를 첨부 도면을 참조하여 상세히 설명한다. 이하의 실시 예는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 본 발명의 사상을 충분히 전달하기 위해 제시하는 것이며, 여기서 제시한 것으로 한정되지 않고 다른 형태로 구체화될 수도 있다. 도면은 본 발명을 명확히 하기 위해 설명과 관계 없는 부분의 도시를 생략할 수 있고, 이해를 돕기 위해 구성요소의 크기를 다소 과장하여 표현할 수 있다. Hereinafter, this embodiment will be described in detail with reference to the accompanying drawings. The following examples are presented to sufficiently convey the spirit of the present invention to those skilled in the art to which the present invention belongs, and may be embodied in other forms without being limited to those presented here. In the drawings, in order to clarify the present invention, illustration of parts irrelevant to the description may be omitted, and the size of components may be slightly exaggerated to help understanding.
도 1은 본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)를 나타내는 사시도이며, 도 2는 본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)를 나타내는 정면도이다. 또한, 도 3 및 도 4는 각각 도 2의 A-A' 방향 단면도 및 B-B' 방향 단면도이다.1 is a perspective view showing a surface inspection device 100 for a steel sheet according to a first embodiment of the present invention, and FIG. 2 is a front view showing the surface inspection device 100 for a steel sheet according to a first embodiment of the present invention. 3 and 4 are cross-sectional views in the direction A-A' and B-B' of FIG. 2, respectively.
도 1 내지 도 4를 참조하면, 본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)는 몸체를 형성하는 하우징프레임(110), 강판(S)의 표면을 연마시키는 지석(G)을 구비하는 연마유닛(120), 연마유닛(120)을 강판(S)의 길이 방향과 나란한 방향으로 이동시키는 제1 이동유닛(130), 연마유닛(120)과 제1 이동유닛(130)을 강판(S)의 폭 방향과 나란한 방향으로 이동시키는 제2 이동유닛(140), 각 유닛의 작동을 제어하는 제어부(미도시)를 포함하여 마련될 수 있다.1 to 4, the steel plate surface inspection apparatus 100 according to the first embodiment of the present invention includes a housing frame 110 forming a body and a grindstone G for polishing the surface of the steel plate S A polishing unit 120 having a, a first moving unit 130 for moving the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S, the polishing unit 120 and the first moving unit 130 It may be provided including a second moving unit 140 for moving the steel plate S in a direction parallel to the width direction and a control unit (not shown) for controlling the operation of each unit.
하우징프레임(110)은 장치의 몸체를 형성하되, 강판(S)이 상측으로부터 진입하여 하측으로 통과할 수 있도록 내부가 빈 육면체 형상으로 마련될 수 있다. 하우징프레임(110)은 후술하는 연마유닛(120), 제1 및 제2 이동유닛(130, 140) 등 각종 부품요소가 장착 및 지지될 수 있으며, 충분한 강성을 확보할 수 있도록 육면체 형상의 모서리 상에 설치되는 복수의 프레임부재로 제작될 수 있다. 하우징프레임(110)은 강판(S) 생산설비 상 지지 가능한 다양한 구조물에 설치될 수 있으며, 일 예로 도금처리된 후 강판(S)의 표면에 존재하는 미소 결합을 확인하고자 하는 경우, 하우징프레임(110)은 도금 설비의 후단 측에 설치될 수 있다. The housing frame 110 forms the body of the device, and may be provided in a hexahedral shape with an empty interior so that the steel plate S can enter from the upper side and pass downward. The housing frame 110 can be equipped with and supported by various component elements such as the polishing unit 120, the first and second moving units 130 and 140 to be described later, and on the corner of the hexahedral shape to ensure sufficient rigidity. It can be manufactured with a plurality of frame members installed in. The housing frame 110 can be installed in various structures that can be supported on the steel plate (S) production facility. For example, if you want to check the micro-bonding present on the surface of the steel plate (S) after plating, the housing frame 110 ) may be installed at the rear end of the plating facility.
본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)는 도 4에 도시된 바와 같이, 후술하는 연마유닛(120)과 제1 및 제2 이동유닛(130, 140)이 하우징프레임(110)의 일측과 타측에 각각 한 쌍이 배치될 수 있으며, 한 쌍의 연마유닛(120)과 한 쌍의 제1 및 제2 이동유닛(130, 140)은 서로 대향되게 배치 및 작동함으로써, 강판(S)의 일면과 타면에 동시에 연마작업 및 결함검출작업을 수행할 수 있다. 그러나 이에 한정되는 것은 아니며, 본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)는 대상 강판(S)의 종류 또는 검사작업의 요구정도에 따라 후술하는 연마유닛(120)과 제1 및 제2 이동유닛(130, 140)이 하우징프레임(110)의 어느 일측에 1개 조로 배치되어 강판(S)의 일면에 대해서만 연마작업 및 결함검출작업을 수행하는 경우에도 동일하게 이해될 수 있다.As shown in FIG. 4, the steel sheet surface inspection apparatus 100 according to the first embodiment of the present invention includes a housing frame ( 110) may be disposed on one side and the other side, respectively, and the pair of polishing units 120 and the pair of first and second moving units 130 and 140 are arranged and operated to face each other, so that the steel plate ( It is possible to simultaneously perform polishing and defect detection on one side and the other side of S). However, the present invention is not limited thereto, and the surface inspection apparatus 100 for a steel sheet according to the first embodiment of the present invention includes a polishing unit 120 described later according to the type of the target steel sheet S or the required degree of inspection work, and the first And the same can be understood even when the second moving units 130 and 140 are disposed in one set on either side of the housing frame 110 to perform the polishing operation and the defect detection operation on only one side of the steel plate S. .
연마유닛(120)은 지석(G)을 강판(S)의 표면에 안정적으로 접촉 및 연마시키도록 마련된다. The polishing unit 120 is provided to stably contact and polish the grindstone G on the surface of the steel plate S.
도 5는 도 4의 C 부분을 확대 도시한 도면으로서, 도 1 내지 도 5를 참조하면, 연마유닛(120)은 강판(S)의 표면에 접촉하여 강판(S)을 연마시키는 지석(G)과, 지석(G)을 파지하는 지석브래킷(121)과, 지석(G) 및 지석브래킷(121)을 강판(S)의 표면을 향해 전진 또는 후퇴시키는 구동실린더(122)와, 지석(G)과 지석브래킷(121)을 탄력적으로 지지하는 탄성지지체(123)와, 지석브래킷(121)을 유연하게 지지하는 링크부재(124)와, 구동실린더(122)를 비롯한 연마유닛(120)의 각종 부품요소를 후술하는 제1 이동유닛(130)에 연결 및 지지시키는 지석프레임(125)을 포함할 수 있다.5 is an enlarged view of part C of FIG. 4. Referring to FIGS. 1 to 5, the polishing unit 120 is a grindstone (G) for polishing the steel plate (S) by contacting the surface of the steel plate (S). And, a grindstone bracket 121 for holding the grindstone G, a drive cylinder 122 for advancing or retracting the grindstone G and the grindstone bracket 121 toward the surface of the steel plate S, and the grindstone G Various parts of the polishing unit 120, including an elastic supporter 123 for elastically supporting the grindstone bracket 121, a link member 124 for flexibly supporting the grindstone bracket 121, and a drive cylinder 122 It may include a grindstone frame 125 for connecting and supporting the element to the first moving unit 130 to be described later.
지석(G)은 전방 측(도 5를 기준으로 상측)이 강판(S)의 표면에 대향하게 배치되고, 후방 측(도 5를 기준으로 하측)이 지석브래킷(121)에 의해 파지 또는 지지될 수 있다. 지석(G)은 후술하는 구동실린더(122)의 신장 시 강판(S)의 표면에 접촉하여 연마시킬 수 있으며, 이를 통해 강판(S)의 표면에 존재하는 미소 결함을 보다 신속하게 검출할 수 있다. The front side (upper side with reference to FIG. 5) of the grindstone (G) is disposed to face the surface of the steel plate (S), and the rear side (lower side with reference to FIG. 5) is gripped or supported by the grindstone bracket (121). can The grindstone (G) can be polished by contacting the surface of the steel plate (S) when the drive cylinder 122 is extended, which will be described later, and through this, micro-defects present on the surface of the steel plate (S) can be detected more quickly. .
한편, 강판(S)이 이송되면서 진동 또는 흔들림이 발생할 수 있으며, 이로 인해 강판(S)의 일부 부위에 굴곡이 발생할 수 있다. 이에 지석(G)의 전방면(도 5를 기준으로 상면)은 강판(S)에 굴곡이 발생하더라도 강판(S) 표면과의 접촉을 안정적으로 유지할 수 있도록 중앙부를 향할수록 강판(S) 측으로 돌출 형성될 수 있다. 나아가, 강판(S)의 진동 또는 흔들림에도 불구하고 지석(G)과 강판(S) 표면 간 접촉을 안정적으로 도모할 수 있도록 지석(G)이 파지되는 지석브래킷(121)을 유연하게 지지하는 링크부재(124)라 마련될 수 있다. 이에 대한 자세한 설명은 후술하도록 한다.Meanwhile, while the steel plate S is being transported, vibration or shaking may occur, and as a result, bending may occur in some parts of the steel plate S. Accordingly, the front surface (upper surface based on FIG. 5 ) of the grindstone (G) protrudes toward the steel plate (S) toward the center so that it can stably maintain contact with the surface of the steel plate (S) even if a bend occurs in the steel plate (S). can be formed Furthermore, a link that flexibly supports the grindstone bracket 121 on which the grindstone G is gripped so that contact between the grindstone G and the surface of the steel plate S can be stably achieved despite the vibration or shaking of the steel plate S. A member 124 may be provided. A detailed description of this will be described later.
지석브래킷(121)은 플레이트 형상으로 마련되어 전방면(도 5를 기준으로 상측)에는 지석(G)이 파지 및 지지되고, 후방면(도 5를 기준으로 하측)에는 링크부재(124)가 연결될 수 있다. 또한 지석브래킷(121)은 구동실린더(122)의 신축 작동에 의해 지석(G)을 강판(S)의 표면 측으로 전진 또는 후퇴시킬 수 있다. 이를 위해, 구동실린더(122)는 전방 측 단부(도 5를 기준으로 상측 단부)가 링크부재(124)를 매개로 지석브래킷(121)의 후방면에 연결되고, 타측의 일 부위가 지석프레임(125)에 고정 및 지지될 수 있다. 지석브래킷(121)에는 후술하는 탄성지지체(123)가 마련되어 지석(G)을 탄력적으로 지지할 수 있다. 이에 대한 자세한 설명은 후술한다. The grindstone bracket 121 is provided in a plate shape, and the grindstone G is gripped and supported on the front surface (upper side with reference to FIG. 5), and the link member 124 can be connected to the rear surface (lower side with reference to FIG. 5). there is. In addition, the grindstone bracket 121 can advance or retreat the grindstone G toward the surface of the steel plate S by the extension operation of the drive cylinder 122 . To this end, the drive cylinder 122 has a front side end (upper end with reference to FIG. 5) connected to the rear surface of the grindstone bracket 121 via a link member 124, and a part of the other side of the grindstone frame ( 125) can be fixed and supported. An elastic support 123 to be described later is provided in the grindstone bracket 121 to support the grindstone G elastically. A detailed description of this will be given later.
구동실린더(122)는 전방 측 단부(도 5를 기준으로 상측 단부)가 링크부재(124)를 매개로 지석브래킷(121)의 후방면에 연결되고, 타측의 일 부위가 지석프레임(125)에 고정 및 지지될 수 있다. 구동실린더(122)는 유압실린더로 마련될 수 있다. 작동유체가 유압실린더로 유입됨에 따라 구동실린더(122)가 신장하여 지석브래킷(121)이 전진함으로써 지석(G)이 강판(S)의 표면으로 접근 및 밀착될 수 있으며, 이와는 반대로 유압실린더로부터 작동유체가 배출됨에 따라 구동실린더(122)가 축소되어 지석브래킷(121)이 후퇴함으로써 지석(G)이 강판(S)의 표면으로부터 이격될 수 있다. The drive cylinder 122 has a front end (upper end in reference to FIG. 5) connected to the rear surface of the grindstone bracket 121 via a link member 124, and a part of the other side to the grindstone frame 125. Can be fixed and supported. The driving cylinder 122 may be provided as a hydraulic cylinder. As the working fluid flows into the hydraulic cylinder, the drive cylinder 122 extends and the grindstone bracket 121 moves forward so that the grindstone G can approach and come into close contact with the surface of the steel plate S, and on the contrary, it works from the hydraulic cylinder. As the fluid is discharged, the drive cylinder 122 is reduced and the grindstone bracket 121 retreats, so that the grindstone G can be separated from the surface of the steel plate S.
구동실린더(122)는 조작패널(미도시)을 통한 작업자의 입력신호에 근거하여 신장 및 축소 작동이 이루어질 수 있으며, 그 외에도 제어부(미도시)에 의해 작동적으로 신장 및 축소 작동이 이루어질 수도 있다. 또한, 제어부는 구동실린더(122)에 가해진 작동유체의 액압을 감지하고, 이에 근거하여 구동실린더(122)의 작동을 제어함으로써 지석(G)과 강판(S) 표면 사이의 밀착력 또는 지석(G)의 가압력을 기 설정된 수치범위 내로 유도할 수 있다. 이를 통해, 지석(G)의 연마작업 및 결함검출공정의 신뢰성과 정밀성이 향상될 수 있다. The driving cylinder 122 may be expanded and contracted based on an operator's input signal through a control panel (not shown), and in addition, extended and contracted operations may be operatively performed by a control unit (not shown). . In addition, the control unit detects the hydraulic pressure of the working fluid applied to the drive cylinder 122, and controls the operation of the drive cylinder 122 based on this, so that the adhesion between the grindstone (G) and the steel plate (S) surface or the grindstone (G) The pressing force of can be induced within a preset numerical range. Through this, the reliability and precision of the grinding stone G and the defect detection process can be improved.
지석(G)은 지석브래킷(121)에 마려되는 탄성지지체(123)에 의해 탄력적으로 지지될 수 있다. 강판(S)의 표면에 대한 지석(G)의 밀착력 또는 가압력은 구동실린더(122)의 작동을 제어함으로써 1차적인 조절이 가능하나, 앞서 언급한 바와 같이 강판(S)이 이송되는 과정에서 강판(S)의 진동 또는 흔들림이 발생하는 바, 지석(G)과 강판(S) 사이의 밀착력 또는 가압력이 기 설정된 수치를 벗어날 수 있다. 이에 탄성지지체(123)가 지석(G)을 탄력적으로 지지시킨 상태에서 연마작업을 수행함으로써, 지석(G)과 강판(S) 간 밀착력 또는 가압력을 2차적으로 세밀하게 조절할 수 있다.The grindstone (G) can be supported elastically by the elastic supporter 123 that is caught on the grindstone bracket 121. The adhesion or pressing force of the grindstone G to the surface of the steel plate S can be primarily adjusted by controlling the operation of the drive cylinder 122, but as mentioned above, the steel plate S is transported in the process. Since vibration or shaking of (S) occurs, the adhesion or pressing force between the grindstone (G) and the steel plate (S) may deviate from a predetermined value. Accordingly, by performing the polishing operation in a state where the elastic support 123 elastically supports the grindstone G, the adhesion or pressing force between the grindstone G and the steel plate S can be secondarily finely adjusted.
이를 위해, 지석브래킷(121)은 진퇴 방향을 따라 한 쌍이 배열되고, 탄성지지체(123)는 한 쌍의 지석브래킷(121) 사이에 적어도 하나 이상 개재되어 마련될 수 있다. 각각의 탄성지지체(123)는 양단이 한 쌍의 지석브래킷(121)에 지지되는 탄성부재(123a)와, 구동실린더(122)의 신축 방향 또는 지석브래킷(121)의 진퇴 방향과 나란하게 연장 형성되어 탄성부재(123a)의 압축 및 팽창 변형을 가이드하는 가이드로드(123b)를 포함할 수 있다. 탄성부재(123a)는 코일스프링(123a)으로 마련될 수 있으며, 가이드로드(123b)는 코일스프링(123a)의 내측에 배치되되 양단이 한 쌍의 지석브래킷(121) 사이에 연결될 수 있다. 또한, 코일스프링(123a)의 압축 및 팽창에 따라 한 쌍의 지석브래킷(121) 사이의 간격이 원활하게 변경될 수 있도록 가이드로드(123b)의 양단은 한 쌍의 지석브래킷(121)의 내측면에 함몰 형성되는 가이드홈(123c)에 각각 인입 가능하게 마련될 수 있다.To this end, a pair of grindstone brackets 121 may be arranged along the forward/backward direction, and at least one elastic support 123 may be interposed between the pair of grindstone brackets 121 and provided. Each elastic supporter 123 has both ends extending in parallel with the elastic member 123a supported by the pair of grindstone brackets 121 and the extension direction of the driving cylinder 122 or the forward and backward direction of the grindstone bracket 121. It may include a guide rod (123b) for guiding the compression and expansion deformation of the elastic member (123a). The elastic member 123a may be provided as a coil spring 123a, and the guide rod 123b may be disposed inside the coil spring 123a, but both ends may be connected between a pair of grindstone brackets 121. In addition, both ends of the guide rod 123b are the inner surfaces of the pair of grindstone brackets 121 so that the interval between the pair of grindstone brackets 121 can be smoothly changed according to the compression and expansion of the coil spring 123a. Each of the guide grooves 123c formed recessed into may be provided to be retractable.
이로써 연마작업 중 강판(S)이 일측으로 치우치거나 큰 규모의 굴곡이 발생하더라도, 일측의 탄성부재(123a)는 압축되되 타측의 탄성부재(123a)는 팽창함으로써 강판(S)의 표면에 대한 지석(G)의 밀착력 또는 가압력이 기 설정된 범위를 벗어나는 것을 억제 및 최소화할 수 있으며, 나아가 연마작업의 정밀성 및 결함검출의 신뢰성이 향상될 수 있다. As a result, even if the steel plate S is biased to one side or a large-scale bending occurs during the polishing operation, the elastic member 123a on one side is compressed while the elastic member 123a on the other side expands, so that the surface of the steel plate S It is possible to suppress and minimize the adhesion or pressing force of the grindstone (G) out of a predetermined range, and furthermore, the precision of grinding work and the reliability of defect detection can be improved.
한편, 도 5 및 앞서 설명한 실시 예에서는 탄성부재(123a)가 코일스프링(123a)으로 마련되는 경우에 접목하여 설명하나 해당 구조에 한정되는 것은 아니며 지석(G)을 탄력적으로 지지할 수 있다면 고무부재, 판스프링 등 다양한 구조 및 장치로 마련될 수 있음은 물론이다.On the other hand, in FIG. 5 and the above-described embodiment, the elastic member 123a is grafted and described when it is provided as a coil spring 123a, but it is not limited to that structure, and if the grindstone G can be elastically supported, the rubber member Of course, it can be provided with various structures and devices such as leaf springs.
링크부재(124)는 강판(S)의 표면과 지석(G)의 밀착을 보다 안정적으로 유지할 수 있도록 지석브래킷(121)과 구동실린더(122) 사이에 개재되어 지석브래킷(121)을 회전 가능하게 지지할 수 있다. The link member 124 is interposed between the grindstone bracket 121 and the drive cylinder 122 to maintain a more stable contact between the surface of the steel plate S and the grindstone G, and rotates the grindstone bracket 121. can support
링크부재(124)는 볼조인트(124)로 마련될 수 있다. 구체적으로, 지석브래킷(121)의 후방면(도 5를 기준으로 하면)에는 볼부재(124a)가 돌출 형성될 수 있으며, 구동실린더(122)의 전방 측 단부(도 5를 기준으로 상측 단부)에는 볼부재(124a)가 인입되어 회전 가능하게 수용되는 케이싱(124b)이 마련될 수 있다. 또한, 도면에는 도시하지 않았으나 링크부재(124)는 볼부재(124a)와 케이싱(124b) 사이에 개재되어 볼부재(124a)의 외면과 케이싱(124b)의 내면 간 접촉에 따른 소음이나 마모를 저감해주는 부싱 또는 고무 부싱 등을 추가적으로 포함할 수 있다. 이로써, 링크부재(124)가 지석(G) 및 이를 파지하는 지석브래킷(121)을 구동실린더(122)에 대해 회전 가능하게 지지함으로써, 강판(S)의 진동 또는 흔들림에도 불구하고 지석(G)과 강판(S) 표면 간 접촉을 안정적으로 유지할 수 있다. Link member 124 may be provided as a ball joint (124). Specifically, the ball member 124a may protrude from the rear surface of the grindstone bracket 121 (based on FIG. 5), and the front end of the drive cylinder 122 (upper end based on FIG. 5). A casing 124b in which the ball member 124a is introduced and rotatably accommodated may be provided. In addition, although not shown in the drawing, the link member 124 is interposed between the ball member 124a and the casing 124b to reduce noise or wear due to contact between the outer surface of the ball member 124a and the inner surface of the casing 124b. A bushing or rubber bushing may be additionally included. As a result, the link member 124 rotatably supports the grindstone G and the grindstone bracket 121 holding it with respect to the drive cylinder 122, so that the grindstone G despite the vibration or shaking of the steel plate S It is possible to stably maintain contact between the surface of the steel plate S.
제1 이동유닛(130)은 연마유닛(120)을 강판(S)의 길이 방향과 나란한 방향으로 이동시키도록 마련된다. 제1 이동유닛(130)의 작동에 의해 연마유닛(120)이 왕복 이동함으로써, 지석(G)이 강판(S)의 표면 상 길이 방향 또는 진행 방향을 따라 연마작업을 수행할 수 있다.The first moving unit 130 is provided to move the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S. By reciprocating the polishing unit 120 by the operation of the first moving unit 130, the grindstone G can perform polishing on the surface of the steel plate S along the longitudinal direction or the moving direction.
제1 이동유닛(130)은 전원을 공급받아 동력을 발생시키는 제1 구동부(131)와, 강판(S)의 길이 방향 또는 진행 방향을 따라 연장 형성되는 제1 가이드프레임(132)과, 연마유닛(120)과 제1 가이드프레임(132) 사이에 마련되어 제1 구동부(131)로부터 제공되는 동력을 이용하여 제1 가이드프레임(132)을 따라 연마유닛(120)을 이동시키는 제1 기어부(133)를 포함할 수 있다.The first moving unit 130 includes a first driving unit 131 for generating power by receiving power, a first guide frame 132 extending along the longitudinal direction or moving direction of the steel plate S, and a polishing unit. A first gear unit 133 provided between the 120 and the first guide frame 132 and moving the polishing unit 120 along the first guide frame 132 using power provided from the first driving unit 131 ) may be included.
제1 구동부(131)는 외부로부터 전원케이블을 통해 전원을 공급받거나, 배터리 등 내장 전원장치로부터 전원을 공급받아 연마유닛(120)의 이동을 위한 동력을 제공할 수 있다. 일 예로, 제1 구동부(131)는 전동모터 등으로 마련되어 회전력을 발생시킬 수 있으나, 해당 구조 또는 장치에 한정되는 것은 아니다. 제1 구동부(131)는 조작패널(미도시)을 통한 작업자의 입력신호에 근거하여 작동이 제어되거나, 또는 제어부(미도시)에 의해 작동적으로 작동 및 작동 중지가 이루어질 수도 있다. The first driving unit 131 may receive power from the outside through a power cable or receive power from a built-in power supply such as a battery to provide power for the movement of the polishing unit 120 . For example, the first driving unit 131 may be provided with an electric motor or the like to generate rotational force, but is not limited to the corresponding structure or device. The operation of the first drive unit 131 may be controlled based on an operator's input signal through a control panel (not shown), or may be operated and stopped operatively by a control unit (not shown).
제1 구동부(131)로부터 제공되는 동력은 제1 기어부(133)로 전달될 수 있으며, 제1 기어부(133)는 전달받은 동력을 이용하여 제1 가이드프레임(132)을 따라 연마유닛(120)을 이동시킬 수 있다. 제1 가이드프레임(132)은 연마유닛(120)의 이동 경로를 제공할 수 있도록 강판(S)의 길이 방향 또는 진행 방향을 따라 연장 형성될 수 있으며, 제1 가이드프레임(132)에는 강판(S)의 길이 방향을 따라 함몰 형성되는 가이드홈(미도시) 또는 강판(S)의 길이 방향을 따라 돌출 형성되는 가이드레일(미도시) 등을 구비할 수 있다. 가이드홈 또는 가이드레일은 제1 기어부(133)로부터 출력되는 동력을 통해 연마유닛(120)의 선형 이동을 발생시킬 수 있도록 기어이가 마련될 수 있다. 또한, 제1 가이드프레임(132)의 일단은 후술하는 제2 이동유닛(140)의 제2 기어부(143)에 연결되어 제1 이동유닛(130)이 강판(S)의 폭 방향을 따라 이동할 수 있다. 이에 대한 자세한 설명은 후술하도록 한다.The power provided from the first driving unit 131 may be transmitted to the first gear unit 133, and the first gear unit 133 uses the received power to follow the first guide frame 132 to the polishing unit ( 120) can be moved. The first guide frame 132 may be formed extending along the longitudinal direction or the traveling direction of the steel plate S to provide a moving path of the polishing unit 120, and the first guide frame 132 includes the steel plate S ) It may be provided with a guide groove (not shown) formed recessed along the longitudinal direction or a guide rail (not shown) formed protruding along the longitudinal direction of the steel plate (S). Gear teeth may be provided in the guide groove or the guide rail to generate linear movement of the polishing unit 120 through power output from the first gear unit 133 . In addition, one end of the first guide frame 132 is connected to the second gear unit 143 of the second moving unit 140 to be described later so that the first moving unit 130 moves along the width direction of the steel plate S. can A detailed description of this will be described later.
제1 기어부(133)는 제1 구동부(131)로부터 제공되는 동력을 이용하여 연마유닛(120)의 선형 이동을 발생시킬 수 있으며, 연마유닛(120)과 일체로 동작할 수 있도록 서로 고정될 수 있다. 일 예로, 제1 구동부(131)는 모터를 포함하고, 제1 기어부(133)는 모터의 회전축에 결합되는 피니언기어를 포함할 수 있으며, 제1 가이드프레임(132)에는 피니언기어에 치합되는 랙기어가 마련됨으로써, 제1 구동부(131)의 동작에 따라 제1 기어부(133) 및 연마유닛(120)이 제1 가이드프레임(132)을 따라 이동할 수 있다. 또는 제1 가이드프레임(132)과 제1 기어부(133)는 리니어 모션 가이드(Linear motion guide)를 포함하여 마련됨으로써, 제1 구동부(131)로부터 제공되는 동력을 이용하여 연마유닛(120)의 선형 이동을 안정적으로 도모할 수도 있음은 물론이다. The first gear unit 133 may generate linear movement of the polishing unit 120 using power provided from the first driving unit 131, and may be fixed to each other so as to operate integrally with the polishing unit 120. can For example, the first driving unit 131 includes a motor, the first gear unit 133 may include a pinion gear coupled to the rotational axis of the motor, and the first guide frame 132 is engaged with the pinion gear. Since the rack gear is provided, the first gear unit 133 and the polishing unit 120 may move along the first guide frame 132 according to the operation of the first driving unit 131 . Alternatively, the first guide frame 132 and the first gear unit 133 are provided by including a linear motion guide, so that the polishing unit 120 uses power provided from the first driving unit 131. Of course, it is also possible to stably achieve linear movement.
제2 이동유닛(140)은 제1 이동유닛(130)과 이에 장착되는 연마유닛(120)을 강판(S)의 폭 방향과 나란한 방향으로 이동시키도록 마련된다. 제2 이동유닛(140)의 작동에 의해 연마유닛(120)과 제1 이동유닛(130)이 왕복 이동함으로써, 지석(G)이 강판(S)의 표면 상 폭 방향을 따라 연마작업을 수행할 수 있다.The second moving unit 140 is provided to move the first moving unit 130 and the polishing unit 120 mounted thereto in a direction parallel to the width direction of the steel plate S. As the polishing unit 120 and the first moving unit 130 reciprocate by the operation of the second moving unit 140, the grindstone G performs the polishing operation along the width direction on the surface of the steel plate S. can
제2 이동유닛(140)은 전원을 공급받아 동력을 발생시키는 제2 구동부(141)와, 강판(S)의 폭 방향을 따라 연장 형성되는 제2 가이드프레임(142)과, 제1 가이드프레임(132)과 제2 가이드프레임(142) 사이에 마련되어 제2 구동부(141)로부터 제공되는 동력을 이용하여 제2 가이드프레임(142)을 따라 연마유닛(120)이 연결 및 장착된 제1 가이드프레임(132)을 이동시키는 제2 기어부(143)를 포함할 수 있다.The second moving unit 140 includes a second driving unit 141 for generating power by receiving power, a second guide frame 142 extending along the width direction of the steel plate S, and a first guide frame ( 132) and the second guide frame 142, and the first guide frame to which the polishing unit 120 is connected and mounted along the second guide frame 142 using power provided from the second drive unit 141 ( 132 may include a second gear unit 143 that moves.
제2 구동부(141)는 외부로부터 전원케이블을 통해 전원을 공급받거나, 배터리 등 내장 전원장치로부터 전원을 공급받아 연마유닛(120)이 연결 및 장착된 제1 가이드프레임(132)의 이동을 위한 동력을 제공할 수 있다. 일 예로, 제2 구동부(141)는 전동모터 등으로 마련되어 회전력을 발생시킬 수 있으나, 해당 구조 또는 장치에 한정되는 것은 아니다. 제2 구동부(141)는 제1 구동부(131)와 마찬가지로, 조작패널(미도시)을 통한 작업자의 입력신호에 근거하여 작동이 제어되거나, 또는 제어부(미도시)에 의해 작동적으로 작동 및 작동 중지가 이루어질 수도 있다. The second driving unit 141 receives power from the outside through a power cable or from a built-in power supply such as a battery, and receives power for moving the first guide frame 132 to which the polishing unit 120 is connected and mounted. can provide. For example, the second drive unit 141 may be provided with an electric motor or the like to generate rotational force, but is not limited to the corresponding structure or device. Like the first drive unit 131, the operation of the second driving unit 141 is controlled based on an operator's input signal through a control panel (not shown), or operated and operated by a control unit (not shown). A stop may be made.
제2 구동부(141)로부터 제공되는 동력은 제2 기어부(143)로 전달될 수 있으며, 제2 기어부(143)는 전달받은 동력을 이용하여 제2 가이드프레임(142)을 따라 연마유닛(120)이 연결 및 장착된 제1 가이드프레임(132)을 이동시킬 수 있다. 제2 가이드프레임(142)은 연마유닛(120)의 이동 경로를 제공할 수 있도록 강판(S)의 폭 방향을 따라 연장 형성될 수 있으며, 제2 가이드프레임(142)에는 강판(S)의 폭 방향을 따라 함몰 형성되는 가이드홈(미도시) 또는 강판(S)의 폭 방향을 따라 돌출 형성되는 가이드레일(미도시) 등을 구비할 수 있다. 가이드홈 또는 가이드레일은 제2 기어부(143)로부터 출력되는 동력을 통해 제1 가이드프레임(132)의 폭 방향 선형 이동을 발생시킬 수 있도록 기어이가 마련될 수 있다. 또한, 제2 가이드프레임(142)은 복수의 장착브래킷(144)에 의해 하우징프레임(110)의 상단에 고정 설치될 수 있다. Power provided from the second drive unit 141 may be transmitted to the second gear unit 143, and the second gear unit 143 uses the received power to follow the second guide frame 142 to the polishing unit ( 120) may move the connected and mounted first guide frame 132. The second guide frame 142 may extend along the width direction of the steel plate S to provide a moving path for the polishing unit 120, and the second guide frame 142 includes the width of the steel plate S. A guide groove (not shown) formed recessed along the direction or a guide rail (not shown) formed protruding along the width direction of the steel plate (S) may be provided. Gear teeth may be provided in the guide groove or the guide rail to generate linear movement of the first guide frame 132 in the width direction through power output from the second gear unit 143 . In addition, the second guide frame 142 may be fixedly installed on top of the housing frame 110 by a plurality of mounting brackets 144 .
제2 기어부(143)는 제2 구동부(141)로부터 제공되는 동력을 이용하여 연마유닛(120)과 제1 가이드프레임(132)의 폭 방향 선형 이동을 발생시킬 수 있으며, 제1 가이드프레임(132)과 일체로 동작할 수 있도록 서로 고정될 수 있다. 일 예로, 제2 구동부(141)는 모터를 포함하고, 제2 기어부(143)는 모터의 회전축에 결합되는 피니언기어를 포함할 수 있으며, 제2 가이드프레임(142)에는 피니언기어에 치합되는 랙기어가 마련됨으로써, 제2 구동부(141)의 동작에 따라 제2 기어부(143) 및 제1 가이드프레임(132)이 제2 가이드프레임(142)을 따라 이동할 수 있다. 또는 제2 가이드프레임(142)과 제2 기어부(143)는 리니어 모션 가이드(Linear motion guide)를 포함하여 마련됨으로써, 제2 구동부(141)로부터 제공되는 동력을 이용하여 연마유닛(120) 및 제1 가이드프레임(132)의 선형 이동을 안정적으로 도모할 수도 있음은 물론이다. The second gear unit 143 may generate linear movement in the width direction of the polishing unit 120 and the first guide frame 132 using power provided from the second driving unit 141, and the first guide frame ( 132) and can be fixed to each other so that they can operate integrally. For example, the second drive unit 141 includes a motor, the second gear unit 143 may include a pinion gear coupled to the rotational shaft of the motor, and the second guide frame 142 is engaged with the pinion gear. Since the rack gear is provided, the second gear unit 143 and the first guide frame 132 may move along the second guide frame 142 according to the operation of the second driving unit 141 . Alternatively, the second guide frame 142 and the second gear unit 143 are provided including a linear motion guide, so that the polishing unit 120 and Of course, the linear movement of the first guide frame 132 may be stably achieved.
이하에서는 본 발명의 제2 실시 예에 의한 강판의 표면검사장치(200)에 대해 설명한다.Hereinafter, a surface inspection apparatus 200 for a steel sheet according to a second embodiment of the present invention will be described.
도 6은 본 발명의 제2 실시 예에 의한 강판의 표면검사장치(200)를 나타내는 정면도이며, 도 7는 본 발명의 제2 실시 예에 의한 집진후드(251)를 확대 도시한 사시도이다. 또한, 도 8은 도 6의 D-D' 방향 단면도이다.6 is a front view showing a surface inspection apparatus 200 for a steel sheet according to a second embodiment of the present invention, and FIG. 7 is an enlarged perspective view of a dust collecting hood 251 according to a second embodiment of the present invention. Also, FIG. 8 is a cross-sectional view in the direction DD′ of FIG. 6 .
도 6 내지 도 8을 참조하면, 본 발명의 제2 실시 예에 의한 강판의 표면검사장치(200)는 몸체를 형성하는 하우징프레임(110), 강판(S)의 표면을 연마시키는 지석(G)을 구비하는 연마유닛(120), 연마유닛(120)을 강판(S)의 길이 방향과 나란한 방향으로 이동시키는 제1 이동유닛(130), 연마유닛(120)과 제1 이동유닛(130)을 강판(S)의 폭 방향과 나란한 방향으로 이동시키는 제2 이동유닛(140), 강판(S)과 지석(G)의 접촉에 의해 발생되는 분진을 포집하는 집진유닛(250), 각 유닛의 작동을 제어하는 제어부(미도시)를 포함하여 마련될 수 있다.6 to 8, the steel plate surface inspection apparatus 200 according to the second embodiment of the present invention includes a housing frame 110 forming a body and a grindstone G for polishing the surface of the steel plate S A polishing unit 120 having a, a first moving unit 130 for moving the polishing unit 120 in a direction parallel to the longitudinal direction of the steel plate S, the polishing unit 120 and the first moving unit 130 A second moving unit 140 that moves in a direction parallel to the width direction of the steel plate S, a dust collection unit 250 that collects dust generated by the contact between the steel plate S and the grindstone G, and operation of each unit It may be provided including a control unit (not shown) for controlling.
이하에서 설명하는 본 발명의 제2 실시 예에 의한 강판의 표면검사장치(200)에 대한 설명 중 별도의 도면부호를 들어 추가적으로 설명하는 경우 외에는 앞서 설명한 본 발명의 제1 실시 예에 의한 강판의 표면검사장치(100)에 대한 설명과 동일한 것으로서 내용의 중복을 방지하기 위해 설명을 생략한다.The surface of the steel sheet according to the first embodiment of the present invention described above, except for cases in which separate reference numerals are additionally described in the description of the surface inspection device 200 of the steel sheet according to the second embodiment of the present invention described below. It is the same as the description of the inspection device 100, and the description is omitted to prevent duplication of contents.
본 발명의 제2 실시 예에 의한 강판의 표면검사장치(200)는 연마유닛(120)에 의한 강판(S) 표면의 연마작업 시 발생되는 분진을 포집하는 집진유닛(250)을 포함한다.The steel plate surface inspection apparatus 200 according to the second embodiment of the present invention includes a dust collection unit 250 that collects dust generated during polishing of the surface of the steel plate S by the polishing unit 120.
집진유닛(250)은 지석(G)과 강판(S) 표면의 접촉에 의해 발생되는 분진이 유입 또는 포집되는 집진후드(251)와, 집진후드(251)로 분진을 유입시키는 흡입장치(미도시)와, 집진후드(251)와 흡입장치를 연결하는 배관(252)과, 집진후드(251)의 이동에 따른 배관(252)의 이동과 변형을 안내하는 제3 가이드프레임(253)을 포함하여 마련될 수 있다.The dust collection unit 250 includes a dust collection hood 251 into which dust generated by the contact between the grindstone G and the surface of the steel plate S is introduced or collected, and a suction device (not shown) that introduces dust into the dust collection hood 251. ), a pipe 252 connecting the dust collecting hood 251 and the suction device, and a third guide frame 253 for guiding the movement and deformation of the pipe 252 according to the movement of the dust collecting hood 251, can be provided.
집진후드(251)는 지석(G)과 강판(S) 표면의 접촉 시 발생되는 분진을 유입 및 포집하도록 마련된다. 집진후드(251)는 지석(G)을 향해 입구가 개방되도록 마련되되, 보다 효과적인 분진의 유입을 위해 입구를 향할수록 단면적이 확대되도록 형성될 수 있다. 또한 집진후드(251)는 제1 가이드프레임(132)의 하단에 고정 설치됨으로써 연마유닛(120)과 제1 가이드프레임(132)이 강판(S)의 폭 방향으로 이동 시 집진후드(251)도 함께 이동할 수 있다. 이로써, 흡입장치에 의한 분진의 유입 및 포집 뿐만 아니라, 자중에 의한 분진의 유입 및 포집도 함께 수행할 수 있으므로 보다 안정적으로 분진을 포집하고 작업공간으로 분진이 비산하는 것을 억제할 수 있다. The dust collecting hood 251 is provided to introduce and collect dust generated when the grindstone G and the surface of the steel plate S come into contact. The dust collecting hood 251 is provided so that an inlet is opened toward the grindstone G, but may be formed such that a cross-sectional area is enlarged toward the inlet for more effective inflow of dust. In addition, since the dust collecting hood 251 is fixedly installed at the lower end of the first guide frame 132, the dust collecting hood 251 also moves when the polishing unit 120 and the first guide frame 132 move in the width direction of the steel plate S. can move together. As a result, since it is possible to perform not only the inflow and collection of dust by the suction device, but also the inflow and collection of dust by its own weight, it is possible to more stably collect dust and suppress scattering of dust into the work space.
집진후드(251)는 배관(252)에 의해 흡입장치(미도시)와 연결되며, 흡입장치의 작동에 의해 연마작업에 의해 발생된 분진이 집진후드(251)로 유입 및 포집되어 작업공간의 안전성 및 쾌적성이 향상될 수 있다. 흡입장치는 조작패널(미도시)을 통한 작업자의 입력신호에 근거하여 작동이 제어되거나, 또는 제어부(미도시)에 의해 작동적으로 작동이 제어될 수도 있다.The dust collecting hood 251 is connected to a suction device (not shown) by a pipe 252, and by the operation of the suction device, the dust generated by the grinding operation flows into the dust collecting hood 251 and is collected, thereby ensuring the safety of the work space. And comfort can be improved. The operation of the suction device may be controlled based on an operator's input signal through an operation panel (not shown), or operation may be operatively controlled by a control unit (not shown).
집진후드(251)가 연마유닛(120) 및 제1 가이드프레임(132)과 함께 강판(S)의 폭 방향으로 이동하는 점을 고려하여, 배관(252)도 원활한 이동 및 변형이 구현될 수 있도록 유연한 재질로 마련될 수 있다. 또한, 배관(252)의 이동 및 변형 시 배관(252)의 일 부위에 과도한 변형 또는 하중에 가해지는 것을 방지하도록 배관(252)의 이동과 변형을 안내하는 제3 가이드프레임(253)이 마련될 수 있다. 제3 가이드프레임(253)은 배관(252)이 놓여지는 위치에 배관(252)의 배치 방향을 따라 연장 형성될 수 있다. 일 예로, 도 6 및 도 8에 도시된 바와 같이, 집진후드(251)가 강판(S)의 폭 방향을 따라 왕복 이동하는 점을 고려하여 제3 가이드프레임(253)은 강판(S)의 폭 방향을 따라 연장 형성되되 하우징프레임(110)의 하측에 장착될 수 있다. 그러나 해당 형성 방향에 한정되는 것은 아니며 배관(252)이 놓여지는 방향에 따라 제3 가이드프레임(253)의 연장 방향을 다양하게 변경될 수 있다. Considering that the dust collecting hood 251 moves along the polishing unit 120 and the first guide frame 132 in the width direction of the steel plate S, the pipe 252 can also be smoothly moved and deformed. It may be provided with a flexible material. In addition, a third guide frame 253 for guiding the movement and deformation of the pipe 252 is provided to prevent excessive deformation or load being applied to a portion of the pipe 252 when the pipe 252 is moved or deformed. can The third guide frame 253 may extend along the disposition direction of the pipe 252 at a position where the pipe 252 is placed. For example, as shown in FIGS. 6 and 8, considering that the dust collecting hood 251 reciprocates along the width direction of the steel plate S, the third guide frame 253 is the width of the steel plate S. Doedoe extended along the direction may be mounted on the lower side of the housing frame (110). However, the extension direction of the third guide frame 253 may be variously changed according to the direction in which the pipe 252 is placed, not limited to the corresponding formation direction.

Claims (16)

  1. 강판의 표면을 연마시키는 지석을 구비하는 연마유닛;A polishing unit having a grindstone for polishing the surface of the steel plate;
    상기 연마유닛을 강판의 길이 방향과 나란한 방향으로 이동시키는 제1 이동유닛; 및a first movement unit for moving the polishing unit in a direction parallel to the longitudinal direction of the steel plate; and
    상기 연마유닛 및 상기 제1 이동유닛을 강판의 폭 방향과 나란한 방향으로 이동시키는 제2 이동유닛을 포함하고, A second moving unit for moving the polishing unit and the first moving unit in a direction parallel to the width direction of the steel sheet,
    상기 연마유닛은The polishing unit
    상기 지석을 파지하는 지석브래킷과,A grindstone bracket for gripping the grindstone;
    상기 지석과 상기 지석브래킷을 상기 강판의 표면을 향해 전진 또는 후퇴시키는 구동실린더와,a driving cylinder for advancing or retracting the grindstone and the grindstone bracket toward the surface of the steel plate;
    상기 지석브래킷과 상기 상기 구동실린더 사이에 개재되되, 상기 지석브래킷을 회전 가능하게 지지하는 링크부재를 포함하는 강판의 표면검사장치.A surface inspection apparatus for a steel sheet comprising a link member interposed between the grindstone bracket and the drive cylinder and rotatably supporting the grindstone bracket.
  2. 제1항에 있어서,According to claim 1,
    상기 연마유닛은The polishing unit
    일측이 상기 제1 이동유닛과 연결되고, 타측에 상기 구동실린더가 지지되는 지석프레임을 더 포함하고,Further comprising a grindstone frame having one side connected to the first moving unit and supporting the driving cylinder on the other side,
    상기 구동실린더는The driving cylinder is
    일단이 상기 지석브래킷의 후면에 연결되고, 어느 일 부위가 상기 지석프레임에 지지되는 강판의 표면검사장치.A surface inspection device for a steel plate having one end connected to the rear surface of the grindstone bracket and one part supported by the grindstone frame.
  3. 제2항에 있어서,According to claim 2,
    상기 연마유닛은The polishing unit
    상기 지석브래킷에 마련되어 상기 지석을 탄력적으로 지지하는 탄성지지체를 더 포함하는 강판의 표면검사장치.The steel plate surface inspection apparatus further comprising an elastic support provided on the grindstone bracket and elastically supporting the grindstone.
  4. 제3항에 있어서,According to claim 3,
    상기 지석브래킷은 진퇴 방향을 따라 한 쌍이 마련되되, A pair of grindstone brackets are provided along the forward and backward direction,
    상기 탄성지지체는The elastic support
    양단이 한 쌍의 상기 지석브래킷 사이에 개재되는 적어도 하나의 탄성부재를 포함하는 강판의 표면검사장치.A surface inspection apparatus for a steel plate including at least one elastic member having both ends interposed between the pair of grindstone brackets.
  5. 제4항에 있어서,According to claim 4,
    상기 탄성부재는 코일스프링으로 마련되고, The elastic member is provided as a coil spring,
    상기 탄성지지체는The elastic support
    상기 코일스프링의 내측에 배치되되, 상기 구동실린더의 신축 방향과 나란한 방향으로 연장 형성되는 가이드로드를 더 포함하는 강판의 표면검사장치.The surface inspection apparatus of the steel sheet further comprising a guide rod disposed inside the coil spring and extending in a direction parallel to the extension direction of the drive cylinder.
  6. 제1항에 있어서,According to claim 1,
    상기 링크부재는The link member is
    볼조인트를 포함하는 강판의 표면검사장치.Steel plate surface inspection device including a ball joint.
  7. 제1항에 있어서,According to claim 1,
    몸체를 형성하고, 강판이 통과 및 이송되도록 내부가 빈 육면체 형상으로 마련되는 하우징프레임을 더 포함하는 강판의 표면검사장치.A steel sheet surface inspection apparatus further comprising a housing frame formed in a body and provided in a hexahedron shape with an empty interior so that the steel sheet passes and is transported.
  8. 제7항에 있어서,According to claim 7,
    상기 제1 이동유닛은The first mobile unit
    전원을 공급받아 동력을 발생시키는 제1 구동부와,A first driving unit for receiving power and generating power;
    강판의 길이 방향을 따라 연장 형성되는 제1 가이드프레임과,A first guide frame extending along the longitudinal direction of the steel plate;
    상기 연마유닛과 상기 제1 가이드프레임 사이에 마련되되, 상기 제1 구동부로부터 동력을 전달받아 상기 연마유닛을 상기 제1 가이드프레임을 따라 이동시키는 제1 기어부를 포함하는 강판의 표면검사장치.A surface inspection apparatus for a steel plate including a first gear part provided between the polishing unit and the first guide frame, and receiving power from the first driving part to move the polishing unit along the first guide frame.
  9. 제8항에 있어서,According to claim 8,
    상기 제2 이동유닛은The second mobile unit
    전원을 공급받아 동력을 발생시키는 제2 구동부와,A second driving unit for receiving power and generating power;
    강판의 폭 방향을 따라 연장 형성되는 제2 가이드프레임과, A second guide frame extending along the width direction of the steel plate;
    상기 제1 가이드프레임과 상기 제2 가이드프레임 사이에 마련되되, 상기 제2 구동부로부터 동력을 전달받아 상기 제1 가이드프레임을 상기 제2 가이드프레임을 따라 이동시키는 제2 기어부를 포함하는 강판의 표면검사장치.Surface inspection of a steel plate including a second gear part provided between the first guide frame and the second guide frame and moving the first guide frame along the second guide frame by receiving power from the second driving part Device.
  10. 제9항에 있어서,According to claim 9,
    상기 제2 이동유닛은The second mobile unit
    상기 제2 가이드프레임을 상기 하우징프레임에 지지시키는 장착브래킷을 더 포함하는 강판의 표면검사장치.The surface inspection apparatus of the steel plate further comprising a mounting bracket supporting the second guide frame to the housing frame.
  11. 제7항에 있어서,According to claim 7,
    강판과 상기 지석의 접촉에 의해 발생되는 분진을 포집하는 집진유닛을 더 포함하는 강판의 표면검사장치.A surface inspection apparatus for a steel plate further comprising a dust collection unit for collecting dust generated by contact between the steel plate and the grindstone.
  12. 제11항에 있어서,According to claim 11,
    상기 집진유닛은The dust collection unit
    입구가 상기 지석을 향해 개방되는 집진후드를 포함하고, Including a dust collection hood whose entrance is open toward the grindstone,
    상기 집진후드는 상기 제1 가이드프레임의 하단에 지지되는 강판의 표면검사장치.The dust collecting hood is a surface inspection device of a steel plate supported at the lower end of the first guide frame.
  13. 제12항에 있어서,According to claim 12,
    상기 집진유닛은The dust collection unit
    일측이 집진후드에 연결되고 타측이 흡입장치에 연결되되, 유연한 재질로 마련되는 배관과, A pipe having one side connected to the dust collecting hood and the other side connected to the suction device and made of a flexible material;
    배관의 배치 방향을 따라 연장 형성되어 상기 배관의 이동 및 변형을 안내하는 제3 가이드프레임을 더 포함하는 강판의 표면검사장치.A surface inspection apparatus for a steel plate further comprising a third guide frame extending along the direction of arrangement of the pipe and guiding movement and deformation of the pipe.
  14. 제7항에 있어서,According to claim 7,
    상기 연마유닛과, 상기 제1 및 제2 이동유닛은The polishing unit and the first and second moving units
    하우징프레임의 일측 및 타측에 각각 장착되도록 한 쌍씩 마련되는 강판의 표면검사장치.A surface inspection device for a steel plate provided in pairs to be mounted on one side and the other side of the housing frame, respectively.
  15. 제14항에 있어서,According to claim 14,
    한 쌍의 상기 연마유닛과, 상기 제1 및 제2 이동유닛은The pair of polishing units and the first and second moving units
    강판의 일면과 타면 측에 서로 대향하게 배치되는 강판의 표면검사장치.A surface inspection device for a steel plate disposed opposite to each other on one side and the other side of the steel plate.
  16. 제11항에 있어서,According to claim 11,
    상기 연마유닛과, 상기 제1 및 제2 이동유닛과, 상기 집진유닛의 작동을 제어하는 제어부를 더 포함하는 강판의 표면검사장치.The steel plate surface inspection apparatus further comprising a controller for controlling operations of the polishing unit, the first and second moving units, and the dust collecting unit.
PCT/KR2022/016050 2021-10-20 2022-10-20 Surface inspection device for steel plate WO2023068848A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020210140014A KR20230056224A (en) 2021-10-20 2021-10-20 Appratus for inspecting surface of plating strip
KR10-2021-0140014 2021-10-20

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WO2023068848A1 true WO2023068848A1 (en) 2023-04-27

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WO (1) WO2023068848A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058160A (en) * 1991-06-28 1993-01-19 Kawasaki Steel Corp Method for polishing end edge surface of metal strip
JP2792442B2 (en) * 1994-08-12 1998-09-03 日本鋼管株式会社 Method and apparatus for grinding a steel plate surface
JP2003094231A (en) * 2001-09-19 2003-04-03 North:Kk Method for manufacturing member for wiring circuit and machine for polishing member for wiring circuit
CN110153818A (en) * 2018-02-02 2019-08-23 张炜 A kind of reciprocating building sheet processing equipment in part based on sector gear engagement
CN212553323U (en) * 2020-04-29 2021-02-19 宝山钢铁股份有限公司 Polishing head for strip steel polisher

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102379910B1 (en) 2019-12-24 2022-03-29 이화다이아몬드공업 주식회사 Grinding wheel of surface processing for workpiece and method of truing or dressing the wheel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058160A (en) * 1991-06-28 1993-01-19 Kawasaki Steel Corp Method for polishing end edge surface of metal strip
JP2792442B2 (en) * 1994-08-12 1998-09-03 日本鋼管株式会社 Method and apparatus for grinding a steel plate surface
JP2003094231A (en) * 2001-09-19 2003-04-03 North:Kk Method for manufacturing member for wiring circuit and machine for polishing member for wiring circuit
CN110153818A (en) * 2018-02-02 2019-08-23 张炜 A kind of reciprocating building sheet processing equipment in part based on sector gear engagement
CN212553323U (en) * 2020-04-29 2021-02-19 宝山钢铁股份有限公司 Polishing head for strip steel polisher

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