Leveler equipped with coil center alignment sensor

Abstract

The present invention relates to a leveler equipped with a coil center alignment sensor, and provides a leveler equipped with a coil center alignment sensor that aligns the coil using information obtained from a sensor unit installed on the side at the center of the coil's width so that coil supply can be stably performed. A leveler equipped with a coil center alignment sensor according to the present invention is characterized by comprising: a coil loading unit (100); a sensor unit (200) that indicates the horizontal width centerline of the leveler to which a coil loaded in the coil loading unit is supplied; and a control unit (300) that acquires information from the sensor unit and adjusts the position of the coil loading unit.

Description

Technology Field

[0001] The present invention relates to a leveler equipped with a coil center alignment sensor, and more specifically, to a leveler equipped with a coil center alignment sensor that aligns the center of the horizontal width of a coil and stably supplies the coil to the input portion of the leveler. Background Technology

[0002] Generally, a leveler is a device that straightens a curved steel plate supplied while unwinding from a coil form, by drawing it through rollers installed in an alternating manner to form a flat surface. It is a machine that straightens a curved steel plate and flattens it by feeding it through the rollers.

[0003] In particular, in the case of high-strength hot-rolled steel sheets, when the steel sheet wound in a coil is unwound for cutting, severe dimensional distortion occurs after cutting due to residual stress, causing problems with product application; therefore, a leveler is used to improve the shape and remove residual stress.

[0004] A coil supply device is used to enable repetitive press operations by continuously supplying coils wound in a cylindrical shape. However, if the coils are not supplied stably, the coiled steel plate is subjected to stress, which causes a problem in which the quality of the finished product deteriorates. To solve this problem, a prior art technology is disclosed in Patent No. 10-2411187, which adjusts the height of the device according to the degree of coil unwinding and supplies the coils horizontally to a leveler feeder.

[0005] Although coil feeding is performed horizontally by a height adjustment unit installed on an uncoiler equipped with a coil holder, based on information from a sensor measuring the degree of winding, this method only measures the winding degree. Consequently, if the center of the coil deviates from the center of the leveler's inlet, the coil becomes misaligned, causing the coil to detach laterally and fall, resulting in an inconvenience. When such coil misalignment occurs, the process of repairing and correcting it poses a problem of reduced productivity, as it involves the time required to remove the misaligned coil and load a new one, while also threatening worker safety and requiring significant labor.

[0006] Accordingly, there has been a continuous demand for a device capable of stably supplying coils by aligning the center of their width. The problem to be solved

[0007] The present invention was created out of the aforementioned necessity, and aims to provide a leveler equipped with a coil center alignment sensor that aligns the coil using information obtained from a sensor unit installed on the side, thereby ensuring stable coil supply.

[0008] In addition, the purpose is to provide a leveler equipped with a coil center alignment sensor that adjusts the coil loading section in real time according to the vibration of the device and the deformation value of the coil. means of solving the problem

[0009] To achieve the above objective, the leveler according to the present invention preferably comprises a sensor that aligns the center of the coil's width. The leveler equipped with the coil center alignment sensor is characterized by comprising: a coil loading section (100); a sensor section (200) that indicates the center line of the width of the leveler inlet section (400) to which the end steel plate sheet of the coil (c) loaded into the coil loading section is supplied; and a control section (300) that acquires information from the sensor section and adjusts the position of the coil loading section.

[0010] Here, the coil loading unit (100) includes a coil reel (110) that forms an axis on which a coil is loaded, wound, and unwound; a reel support (120) that supports the end of the coil reel (110); a coil pusher (130) that presses the coil loaded on the coil reel so that it does not unravel; a mounting cart (140) on which the lower end of the coil is placed and moved; and a driving motor (150) that rotates the coil reel on the axis.

[0011] Additionally, the coil reel includes a central axis (111) made of a cylindrical column, a plurality of reel blades (112) connected to the central axis and surrounding the outer circumference of the central axis, and a plurality of joint links (113) connecting the central axis and the reel blades.

[0012] Additionally, the mounting cart (140) includes a mounting base (141) on which the curved surface of the coil is mounted to form a concave curved surface; a base part (144) located at the bottom of the mounting base and moving; and a rail part (146) that guides the path along which the base part is transported.

[0013] Additionally, the sensor unit (200) comprises a sensor (210); a guide rod (220) that guides the position so that the sensor can move; a sensor protection bar (230) that surrounds the guide rod and the lower side of the sensor with a gap; a fixed rod (240) that supports the guide rod; a support (250) that extends vertically from the fixed rod and guides the horizontal edge of the coil (c) loaded on the coil reel; a connecting bracket (260) that connects the guide rod, the fixed rod, and the support; and a sensor driving unit (270) that provides power for the sensor to operate. The sensor includes a detection unit (211) that moves horizontally along the guide rod and detects the horizontal width, and a display unit (212) that calculates the information of the detection unit (211) and displays the center position.

[0014] Additionally, the control unit includes a monitor (310) that displays information from the sensor unit and setting information of the leveler on a screen, an operating unit (320) that controls the operation of the coil loading unit, and an algorithm (330, not shown) that determines and calculates whether the leveler is operating based on input information. The algorithm includes a deviation checking unit (331) that checks the center line of the coil and the center of the width of the leveler inlet; an adjustment notification unit (332) that receives information from the deviation checking unit and provides a notification if it is determined that adjustment is necessary; and a position adjustment unit (333) that adjusts the position of the coil loading unit based on the information from the deviation checking unit to align the center line of the coil with the leveler inlet.

[0015] Here, the deviation checking unit includes a leveler center checking unit (311) that detects the width of the leveler inlet where the coil is supplied and stores the center position information, and a coil center checking unit (312) that detects the width of the loaded coil and stores the center position information, and the position adjustment unit includes an optimal movement calculation unit (331) that calculates and aligns a path that minimizes the movement of the coil loading unit so that the information of the coil center checking unit matches the information of the leveler center checking unit. Effects of the invention

[0016] Unlike conventional inventions, the leveler equipped with the coil center alignment sensor according to the present invention described above achieves central alignment of the coil regardless of the operator's skill level, thereby maintaining excellent quality of manufactured products and improving work efficiency.

[0017] In addition, the coil installation process is performed easily, reducing the time required and thereby lowering the production cost of the product. Brief explanation of the drawing

[0018] FIG. 1 is a perspective view illustrating the schematic configuration of a leveler equipped with a coil center alignment sensor according to a preferred embodiment of the present invention. FIG. 2 is a drawing illustrating the configuration of a coil loading unit according to a preferred embodiment of the present invention. FIG. 3 is a drawing illustrating the configuration of a coil reel according to a preferred embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating an expanded AA cross-section of a joint link of a coil reel according to a preferred embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating a reduced AA cross-section of a joint link of a coil reel according to a preferred embodiment of the present invention. FIG. 6 is a front view of a leveler equipped with a coil center alignment sensor according to a preferred embodiment of the present invention with a coil loaded thereon. FIG. 7 is a drawing illustrating the configuration of a sensor unit according to a preferred embodiment of the present invention. FIG. 8 is a schematic diagram showing the operating state of a sensor according to a preferred embodiment of the present invention. FIG. 9 is a drawing showing the configuration of a mounting cart according to a preferred embodiment of the present invention. FIG. 10 is a diagram showing the configuration of a control unit according to a preferred embodiment of the present invention. Specific details for implementing the invention

[0019] Hereinafter, a preferred embodiment of a leveler equipped with a coil center alignment sensor according to the present invention will be described with reference to the attached drawings. The description will be based on an example where a coil of steel plate, generally weighing 20 to 30 tons and rolled like a scroll, is used as the feed material. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for the sake of clarity and convenience of explanation. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0020] FIG. 1 is a perspective view illustrating the schematic configuration of a leveler equipped with a coil center alignment sensor according to a preferred embodiment of the present invention. Referring to FIG. 1, the leveler is characterized by comprising: a coil loading section (100); a sensor section (200) that indicates the horizontal centerline of a leveler inlet section (400) to which an end steel plate sheet of a coil (c) loaded into the coil loading section is supplied; and a control section (300) that acquires information from the sensor section and adjusts the position of the coil loading section.

[0021] The coil loading unit (100) includes a series of devices for loading a coil in which a steel sheet is rolled up, unwinding the end, and supplying it stably and continuously to a leveler.

[0022] The sensor unit (200) moves the sensor to provide information so that the width of the coil and the position of the leveler inlet can be aligned, detects and measures the width of the coil and the position of the leveler inlet, and displays the centerline.

[0023] The control unit (300) controls the position of the coil loading unit based on the center of the leveler inlet provided by the sensor unit so that the center of the horizontal width of the coil is aligned equally.

[0024] The leveler inlet section (400) includes a slot-type inlet section into which the curved end of the steel plate of the coil is supplied to the leveler, and includes a steel plate supply guide (410) equipped with a roller at the bottom so that the steel plate can be flexibly supplied while maintaining the center of the inlet section.

[0025] FIG. 2 is a drawing illustrating the configuration of a coil loading unit according to a preferred embodiment of the present invention. Referring to FIG. 2, the coil loading unit (100) includes: a coil reel (110) forming an axis on which a coil is loaded, wound, and unwound; a reel support (120) supporting the end of the coil reel (110); a coil pusher (130) pressing the coil loaded on the coil reel so that it does not unravel; a mounting cart (140) on which the lower end of the coil is placed and moved; and a driving motor (150) for rotating the coil reel on the axis.

[0026] The coil reel (110) is formed as an axis and supports the coil by passing through a central hole where the coil is wound, and is configured to rotate the axis by motor drive so that the steel sheet wound on the coil can be unwound or re-wound.

[0027] The reel support (120) is provided with a support that supports the end of the coil reel so as to maintain the horizontal position of the coil reel, thereby forming a stable structure that can support the weight of the coil.

[0028] The coil pusher (130) is equipped with upper and lower wings including a plurality of rollers to secure the steel sheet of the coil so that it does not come loose due to vibration and impact loads, and applies pressure in both directions by adhering to the coil.

[0029] The mounting cart (140) is equipped with a base that moves along a rail to load a heavy coil onto a coil reel, and a mounting base that forms a concave curved surface on which the curved outer surface of the coil is mounted, so as to move stably to fit the coil reel.

[0030] The drive motor (150) provides rotational force to rotate the coil reel axially so that the steel sheet of the coil is wound or unwound, and forms the main body of the coil loading part to which the coil reel is fixed.

[0031] FIG. 3 is a drawing illustrating the configuration of a coil reel according to a preferred embodiment of the present invention. Referring to FIG. 3, the coil reel includes a central axis (111) formed by a cylindrical column, a plurality of reel blades (112) connected to the central axis and surrounding the outer circumference of the central axis, and a plurality of joint links (113) connecting the central axis and the reel blades.

[0032] The central axis (111) is extended horizontally and is formed into a cylindrical column to form the center of the coil reel, and is made of a material that maintains excellent rigidity against fatigue and load so as to sufficiently support the load of the coil including the reel blade and joint link.

[0033] The reel blade (112) is composed of a plurality of curved segments having an arc-shaped cross-section that covers the outer circumference of the central axis, and the outer surface of the segment contacts and connects with the center hole (c1) of the coil when the coil is loaded. The reel blade (112), formed by segments in which the pipe shape is divided in the longitudinal direction, is configured to contact the central axis or be spaced apart from the central axis so that the outer diameter of the coil reel can be changed. The longitudinal end of the reel blade is provided with a loading inlet (1121) formed as an inclined surface in which the outer diameter gradually narrows, so that loading of the inlet is easy when the coil reel is inserted through the center hole of the coil.

[0034] A C-shaped wing tooth projection (1122) is provided at the boundary where the reel wings are adjacent to each other, so that when the reel wings are expanded, the wing tooth projections are arranged to intersect each other to form the outer diameter of the coil reel, thereby preventing the phenomenon of the curved material getting stuck in the boundary line of the reel wings when there is curling at the end of the inner diameter of the coil center hole.

[0035] The reel blade is connected to the joint link and fixed to the central axis, and is provided with a joint support groove (1124) in an inclined space adjacent to the cam hole (1123) that forms a through hole, so that the outer diameter of the reel coil can be changed by changing the contact portion with the joint link by connecting to the joint link.

[0036] The joint link (113) is fixed to the central axis and connected to the joint support groove of the reel blade to form the outer diameter of the coil reel. Refer to the description of FIGS. 4 and FIGS. 5 below for the connection relationship and expansion mechanism between the joint link and the reel blade.

[0037] The coil reel fixing part (114) is provided with a coil reel fixing piece (1141) in a ring shape surrounding a central axis so as to be fixed to the side of the coil reel body including the drive motor and stably supported, and is coupled to the coil reel body with a fixing bolt (1142).

[0038] FIGS. 4 and 5 are cross-sectional views illustrating the expansion and contraction AA cross-section of a joint link of a coil reel according to a preferred embodiment of the present invention. Referring to FIG. 4, the joint link (113) includes a joint slope (1131) formed by connecting a plurality of fixed links (1132) that are fixedly connected in contact with a central axis to form a diagonal line of a slide cam.

[0039] The joint support groove (1124), formed as an inclined groove on the reel blade, allows the reel blade to move in correspondence with the inclined joint coupling part, thereby enabling the outer diameter of the coil reel to change to match the size of the center hole of the coil.

[0040] Referring to FIG. 4, when a joint coupling inclined portion is positioned on the sliding contact portion (1125) of the joint support groove of the reel blade, the reel blade is separated from the central axis of the coil reel, expanding the outer diameter of the reel coil and strengthening the contact force with the inner diameter of the coil center hole being loaded. As shown in FIG. 5, when a joint coupling inclined portion is positioned on the sliding outer diameter portion (1126) of the joint support groove of the reel blade, the reel blade contacts the central axis of the coil reel, reducing the outer diameter of the reel coil and making it easier to load the coil. In this way, the outer diameter of the reel coil can be selectively expanded and reduced, allowing the reel blade to be moved from the central axis according to the situation.

[0041] FIG. 6 is a front view of a leveler equipped with a coil center alignment sensor according to a preferred embodiment of the present invention, with a coil loaded thereon. Referring to FIG. 6, the coil reel of the leveler passes through a coil center hole formed in the center where the coil is wound, and the coil is loaded thereon, and the steel sheet at the end of the coil passes through a steel sheet supply guide (410) and is fed into the leveler inlet (400).

[0042] At this time, a sensor unit is utilized to align the center of the coil's width so that the steel sheet can be stably supplied to the leveler inlet.

[0043] FIG. 7 is a diagram illustrating the configuration of a sensor unit according to a preferred embodiment of the present invention. Referring to FIG. 7, the sensor unit (200) comprises: a sensor (210); a guide rod (220) that guides the position so that the sensor can move; a sensor protection bar (230) that surrounds the guide rod and the lower side of the sensor at a distance; a fixed rod (240) that supports the guide rod; a support (250) that extends vertically from the fixed rod and guides the horizontal edge of a coil (c) loaded on a coil reel; a connecting bracket (260) that connects the guide rod, the fixed rod, and the support; and a sensor driving unit (270) that provides power for the sensor to operate. The sensor includes a detection unit (211) that moves horizontally along the guide rod and detects the horizontal width, and a display unit (212) that calculates information from the detection unit (211) and displays the center position.

[0044] The sensor unit (200) is formed lengthwise on the side of the coil reel and is equipped with a non-contact optical sensor (210) that moves along the guide rod to accurately and quickly measure the width. The sensor drive unit is fixed to the side of the main body and electrically connected to the sensor to provide power so that the sensor can move and detect. It is equipped with a fixing rod that extends from the sensor drive unit along an axis to fix the guide rod, and includes a sensor protection bar that covers the lower side of the guide rod to protect the sensor's movement and the device.

[0045] FIG. 8 is a schematic diagram showing the operating state of a sensor according to a preferred embodiment of the present invention. Referring to FIG. 8, the sensor includes a detection unit (211) that moves horizontally along the guide rod and detects the width, and a display unit (212) that calculates information from the detection unit (211) and displays a center position. The sensor (210) is connected to the guide rod (220) and moves along the guide rod to detect the width of the leveler inlet, and displays the center position of the width of the leveler inlet as a laser line toward the coil loaded on the coil reel. To align the center of the coil's width with the laser line displaying the center position, the position of the coil is moved by operating the mounting cart.

[0046] FIG. 9 is a drawing showing the configuration of a mounting cart according to a preferred embodiment of the present invention. Referring to FIG. 9, the mounting cart (140) includes a mounting base (141) on which the curved surface of a coil is mounted to fix and support the movement of the coil. To stably support the coil corresponding to the curved surface of the coil, the mounting base is provided with a mounting groove that connects the rolling pins concavely by inserting rolling pins (142) into both sides of the mounting base and fixing them with a fixing pin (143). The coil is mounted in the mounting groove and moves stably without escaping to the outside of the mounting base, and the rolling pins rotate to facilitate the entry of the end of the steel sheet into the leveler inlet.

[0047] The base portion (144) is located at the bottom of the mounting base and moves along the path of the rail portion (146), and includes rail wheels (145) on both sides of the base portion that have rail grooves (146) corresponding to the rail portion. A driving motor is included inside the base portion to support and transport the coil.

[0048] The rail section (146) forms parallel, spaced rail tracks to establish the movement path of the landing cart. The entire structure of the landing cart is made of a sturdy and durable material to support the load of the coil.

[0049] FIG. 10 is a diagram showing the configuration of a control unit according to a preferred embodiment of the present invention. Referring to FIG. 10, the control unit includes a monitor (310) that displays information of the sensor unit and setting information of the leveler on a screen, an operating unit (320) that controls the operation of the coil loading unit, and an algorithm (not shown) that determines and calculates whether the leveler operates based on input information.

[0050] The monitor (310) displays setting information of the coil loading section and the laser section along with the status diagram of the leveler on the screen, and can be configured as a touchscreen including a selection section where an operator can input setting information. The monitor includes a coil center point (311) formed as a touchscreen selection section for commanding the sensor section to display a laser line, and the operator can adjust the coil position using the control section by visually checking.

[0051] The control unit (320) is separately equipped with a control dial that can operate the coil reel, reel support, coil pusher, reel blade, etc., that constitute the leveler.

[0052] The control unit (300) completes alignment by moving the coil based on the laser line provided by the sensor unit to align it with the coil center line. At this time, the operator can visually check the laser line and directly measure the width of the coil to mark the center line on the coil, and then move the mounting cart of the coil loading unit to align it with the laser line to adjust the position of the coil.

[0053] In another embodiment, the control unit includes an algorithm (330) that automatically calculates the center line of the coil and provides for automatically adjusting the deviation that occurs by comparing the center line of the coil with the center laser line of the leveler inlet.

[0054] The algorithm (330) includes: a deviation checking unit (331) that checks the center line of the coil and the center of the width of the leveler inlet; an adjustment notification unit (332) that receives information from the deviation checking unit and provides a notification if it is determined that adjustment is necessary; and a position adjustment unit (333) that adjusts the position of the coil loading unit based on the information from the deviation checking unit to align the center line of the coil with the leveler inlet.

[0055] The deviation checking unit (331) detects the width of the coil from the sensor unit and stores the coil's centerline coordinate information as centerline data, and detects the width of the leveler inlet unit and stores the laser line's coordinate information as inlet center data to check the difference between the centerline and the inlet center data. The adjustment notification unit (332) checks the difference detected by the deviation checking unit and, if it is determined that adjustment is necessary, provides an adjustment progress notification via sound and monitor display information so that the operator can recognize the automatically proceeding adjustment process. The position adjustment unit (333) calculates an optimized path that can reduce the deviation with minimal position movement and adjusts the position of the coil loading unit to align the coil's centerline with the inlet center of the leveler inlet unit so that the centerline and the inlet center data are identical.

[0056] In this way, the coil center alignment process, which previously relied on the operator's skill level, can be easily performed by verifying the laser line displayed on the sensor unit. This reduces errors caused by misalignment, as well as the time and labor required for additional corrections, thereby significantly improving work efficiency.

[0057] Although the present invention has been described with reference to embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Furthermore, the device of the present invention may be used in lines requiring the alignment of materials other than a device for supplying coils of press plates. Accordingly, the true technical scope of protection of the present invention should be determined by the following claims. Explanation of the symbols

[0058] 100 : Coil loading section 110 : Coil reel 111 : Central axis 112 : Reel blade 113 : Joint link 120 : Reel support 130 : Coil Pusher 140 : Landing Cart 150 : Drive motor 160 : Coil reel body 200 : Sensor unit 210 : Sensor 220 : Guide rod 230 : Sensor protection bar 240 : Fixed rod 250 : Support 260: Connecting bracket 270: Sensor drive unit 300 : Control unit 310 : Monitor 311 : Coil center point 320 : Control unit 330 : Algorithm 331 : Deviation Checker 332 : Adjustment Notification Unit 333 : Position Adjustment Unit

Claims

Claim 1 A leveler equipped with a coil center alignment sensor, comprising: a coil loading section; a sensor section indicating the horizontal centerline of a leveler inlet section to which an end steel plate sheet of a coil loaded into the coil loading section is supplied; and a control section that acquires information from the sensor section and adjusts the position of the coil loading section; wherein the coil loading section comprises: a coil reel forming an axis on which the coil is loaded, wound, and unwound; a reel support supporting the end of the coil reel; a coil pusher pressing the coil loaded on the coil reel to prevent it from unwinding; a mounting cart on which the lower end of the coil is placed and moved; and a driving motor that rotates the coil reel. Claim 2 delete Claim 3 A leveler having a coil center alignment sensor, characterized in that, in claim 1, the coil reel comprises a central axis formed by a cylindrical column, a plurality of reel blades connected to the central axis and surrounding the outer circumference of the central axis, and a plurality of joint links connecting the central axis and the reel blades. Claim 4 A leveler having a coil center alignment sensor, characterized in that, in claim 1, the mounting cart comprises: a mounting base on which the curved surface of the coil is mounted to form a concave curved surface; a base part located below the mounting base and moving; and a rail part that guides the path along which the base part is transported. Claim 5 A leveler having a coil center alignment sensor, wherein the sensor unit comprises: a sensor; a guide rod that guides the position so that the sensor can move; a sensor protection bar that surrounds the guide rod and the lower side of the sensor with a gap between them; a fixed rod that supports the guide rod; a support that extends vertically from the fixed rod and guides the edge of the horizontal width of the coil loaded on the coil reel; a connecting bracket that connects the guide rod, the fixed rod, and the support; and a sensor driving unit that provides power for the sensor to operate; wherein the sensor includes a detection unit that moves horizontally along the guide rod and detects the horizontal width, and a display unit that calculates information from the detection unit and displays the center position. Claim 6 A leveler having a coil center alignment sensor, wherein the control unit comprises a monitor that displays information from the sensor unit and setting information of the leveler on a screen to check the information and setting information of the leveler, an operating unit that controls the operation of the coil loading unit, and an algorithm that determines and calculates whether the leveler is operating based on input information, wherein the algorithm comprises: a deviation checking unit that checks the center line of the coil and the center of the width of the leveler inlet; an adjustment notification unit that receives information from the deviation checking unit and provides a notification when it is determined that adjustment is necessary; and a position adjustment unit that adjusts the position of the coil loading unit based on the information from the deviation checking unit to align the center line of the coil with the leveler inlet. Claim 7 A leveler having a coil center alignment sensor, characterized in that, in claim 6, the deviation checking unit includes a leveler center checking unit that detects the width of the leveler inlet to which the coil is supplied and stores the center position information, and a coil center checking unit that detects the width of the loaded coil and stores the center position information, and the position adjustment unit includes an optimal movement calculation unit that calculates and aligns a path to minimize the movement of the coil loading unit so that the information of the coil center checking unit matches the information of the leveler center checking unit.

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