System and method for diagnosing condition of strip oil supplying apparatus

Abstract

The present invention relates to a system and method for diagnosing the condition of a lubricating machine. A system for diagnosing the condition of a lubricating machine according to one embodiment of the present invention is a system for diagnosing the condition of a lubricating machine having a nozzle or blade that sprays rust-preventive oil, using measurement data from a lubricating amount measuring device that measures the amount of lubricating applied to a steel plate. The system comprises: a lubricating amount measuring data collection unit that collects measurement data from the lubricating amount measuring device; a lubricating amount measuring data processing unit that creates and processes data to visualize the collected lubricating amount measuring data and output it to a display; and a cleaning unit that cleans the clogged part of the nozzle or blade when the clogging state of the nozzle or blade is determined based on the visualized data output to the display.

Description

Technology Field

[0001] The present invention relates to a system for diagnosing the condition of a lubricator and a method for diagnosing the condition of a lubricator. More specifically, the invention relates to a system for diagnosing the condition of a nozzle or blade of a lubricator by utilizing result data from a device for measuring the amount of oil applied to a steel plate, and a method for diagnosing the condition of a lubricator by promptly taking action to prevent surface defects. Background Technology

[0002] The galvanizing line producing automotive steel sheets is equipped with facilities to apply rust-preventive oil to the surface of the steel sheets to prevent rust on the final product before shipment and to facilitate lubrication during processing by the customer.

[0003] Although the operation method of the lubricator varies depending on the manufacturer, generally, a method in which rust-preventive oil is sprayed between nozzles or blades is used, and it is applied by attaching it to both surfaces in the direction of travel of the steel plate.

[0004] However, if nozzle or blade clogging occurs occasionally due to the solidification of rust-preventive oil or foreign substances, various surface defects (e.g., oil streaks or stains) develop, which become a source of VOCs for the client.

[0005] Meanwhile, to manage and guarantee the amount of oil applied to steel plates, a device for measuring the amount of oil applied to steel plates is already in use.

[0006] Therefore, it is necessary to develop a system that can prevent surface defects (e.g., oil streaks or stains) and VOCs from customers by utilizing measurement data on the amount of oil applied to these steel plates to detect and address abnormal conditions of the oiling equipment in advance, such as nozzle or blade clogging, thereby preventing nozzle or blade blockage.

[0007] As a related prior art, there is Republic of Korea Patent No. 10-2017-0007599 (published on January 19, 2017), which discloses a device for measuring flow rate and a method for measuring flow rate. However, it does not present any technology at all regarding the ability to detect and prevent nozzle or blade clogging in advance using flow rate measurement data. Prior art literature

[0008] Republic of Korea No. 10-2017-0007599 (Published on Jan. 19, 2017) The problem to be solved

[0009] The objective of the present invention is to provide a lubricator condition diagnosis system that utilizes result data from a device measuring the amount of oil applied to a steel plate to diagnose the clogging status of the lubricator nozzle or blade and promptly take corrective action to prevent surface defects.

[0010] Another objective of the present invention is to provide a method for diagnosing the condition of a lubricator that utilizes result data from a device for measuring the amount of oil applied to a steel plate to diagnose the clogging status of the nozzle or blade of the lubricator and promptly take corrective action to prevent surface defects.

[0011] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0012] A lubrication device condition diagnosis system according to one embodiment of the present invention is a lubrication device condition diagnosis system that diagnoses the condition of a lubrication device having a nozzle or blade that sprays rust-preventive oil using measurement data from a lubrication amount measuring device that measures the amount of lubrication applied to a steel plate, and comprises: a lubrication amount measurement data collection unit that collects measurement data from the lubrication amount measuring device; a lubrication amount measurement data processing unit that creates and processes data to visualize the collected lubrication amount measurement data and output it to a display; and a cleaning unit that cleans the clogged part of the nozzle or blade when the clogging state of the nozzle or blade is determined based on the visualized data output to the display.

[0013] At this time, it further includes: a head installed in the above-mentioned oil adhesion amount measuring device and reciprocating left and right in the width direction of the steel plate; and a sensor mounted on the head, which measures the oil adhesion amount of the steel plate in conjunction with the movement position of the head and transmits the measurement data to the above-mentioned oil adhesion amount measurement data collection unit.

[0014] In addition, the sensor includes a plurality of dots for measuring the amount of oil applied to the steel plate according to the movement of the head, and the plurality of dots can be matched to a plurality of points that divide the steel plate at uniform intervals along the width direction.

[0015] In addition, the number of the above multiple points can be determined based on the following mathematical formula 1.

[0016] [Mathematical Formula 1]

[0017] RBI count = (L / LS)*60 / t

[0018] (Here, L is the length of the steel plate, t is the travel time per sensor point, and LS is the speed of the steel plate.)

[0019] In addition, the above-mentioned oil application amount measurement data processing unit can create a measured raw data graph with the plurality of dots as x-axis values ​​and the oil application amount measured by the sensor at each of the plurality of dots as y-axis values, and accumulate and record the oil application amount for each width position of the steel plate.

[0020] In addition, the above-mentioned oil application amount measurement data processing unit can calculate the average value of the oil application amount for each width position of the steel plate using the accumulated recorded oil application amount for each width position of the steel plate.

[0021] In addition, the above-mentioned oil adhesion amount measurement data processing unit can calculate the average value of the oil adhesion amount for each width position of the steel plate for the front and back sides in the width direction of the steel plate.

[0022] In addition, the above-mentioned oil application amount measurement data processing unit can update the oil application amount measurement data by repeatedly calculating the average value of the oil application amount for each width position of the steel plate for a plurality of steel plates.

[0023] In addition, the above-mentioned oil application amount measurement data processing unit can perform position alignment based on the width center position of each of the multiple steel plates when the width sizes of each of the multiple steel plates are different.

[0024] In addition, the above oil application amount measurement data processing unit can determine the nozzle or blade clogging status in the said part area when a difference occurs in the visualized data of some of the plurality of dots compared with the visualized data in the remaining area of ​​the plurality of dots.

[0025] A lubricator condition diagnosis system according to one embodiment of the present invention further includes a lubricator abnormality condition notification unit that indicates whether there is an abnormality in the lubricator when the nozzle or blade is clogged.

[0026] In a lubrication device condition diagnosis system according to one embodiment of the present invention, the cleaning unit may include an air purge pipe that cleans the clogged area by spraying air onto the nozzle or blade when the clogging state of the nozzle or blade is determined.

[0027] Meanwhile, a method for diagnosing the condition of a lubricator according to one embodiment of the present invention is a method for diagnosing the condition of a lubricator having a nozzle or blade that sprays rust-preventive oil using measurement data from a lubricant adhesion amount measuring device that measures the amount of lubricant applied to a steel plate, and comprises: a step of collecting measurement data of the amount of lubricant applied to

[0028] In addition, a method for diagnosing the condition of a lubricator according to one embodiment of the present invention includes, after the step of processing the measurement data of the amount of lubricant applied, a step of notifying the user of whether there is an abnormality in the lubricator when the nozzle or blade blockage condition is determined based on the visualized data. Effects of the invention

[0029] According to the present invention, by utilizing result data from a device for measuring the amount of oil applied to a steel plate, the clogging status of the nozzle or blade of the oiling device can be diagnosed and promptly addressed to prevent clogging of the nozzle or blade. As a result, surface defects of the steel plate (e.g., oil streaks, oil stains, etc.) can be prevented, and there is an advantage of preventing VOCs from the customer.

[0030] Previously, workers could only detect clogging of the oiling machine's nozzle or blade after visually inspecting oil streaks or stains sprayed on the steel plate surface; if the clogging was not detected visually, the problem was only realized after the product had already arrived at the client's site, leading to VOC (Volatile Organic Compound) complaints.

[0031] According to the present invention, the clogging status of a nozzle or blade of a lubricator can be diagnosed by utilizing result data from a conventional lubricant application amount measuring device. For example, in the result data of the lubricant application amount measuring device, the x-axis represents the point and the y-axis represents the amount of lubricant. By organizing these data by continuous coil (i.e., in chronological order) and displaying them in relation to the nozzle or blade width (w), areas with a relatively low amount of lubricant can be detected. The area with a relatively low amount of lubricant detected in this way is determined to be a part where the nozzle or blade clogging phenomenon is progressing. Subsequently, defects can be prevented by clearing the clogged part of the nozzle or blade through air purging during operation, or by cleaning the corresponding part during equipment inspection after operation.

[0032] In particular, although there was no separate means to estimate the clogging status of a nozzle or blade in operation in the past, according to the present invention, by utilizing result data from a device for measuring the amount of oil applied to a steel plate, the condition of the nozzle or blade in operation can be estimated, thereby allowing for preliminary measures to be taken before the clogging becomes fixed, which has the advantage of preventing defects and preventing device failure.

[0033] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below. Brief explanation of the drawing

[0034] FIG. 1 is an overall conceptual diagram briefly illustrating an oiling facility according to an embodiment of the present invention. FIG. 2 is a conceptual diagram briefly illustrating a nozzle-type electrostatic lubrication device. FIG. 3 is a conceptual diagram briefly illustrating a blade-type electrostatic lubrication lubricator. FIG. 4 is a conceptual diagram briefly illustrating a device for measuring the amount of oil applied according to an embodiment of the present invention. FIG. 5 is a block diagram showing the schematic configuration of a lubrication device condition diagnosis system according to an embodiment of the present invention. FIG. 6 is a simplified connection diagram illustrating the entire facility of a lubrication system condition diagnosis system according to an embodiment of the present invention. FIG. 7 is a flowchart of a method for diagnosing the condition of an oiling device according to an embodiment of the present invention. FIG. 8 is a flowchart showing the detailed step configuration of the oil application amount measurement data processing step in the oil application condition diagnosis method according to an embodiment of the present invention. FIG. 9 is an example diagram of a front and back raw data graph of a steel plate created according to an oiling device condition diagnosis system and method according to an embodiment of the present invention. FIG. 10 is a table exemplifying the front and back oiling performance in the average width direction of a steel plate. Figure 11 is an example diagram showing the results of visualizing the cumulative oiling performance based on the front surface of the steel plate. Specific details for implementing the invention

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0036] To clearly explain the present invention, parts unrelated to the description have been omitted, and the same reference numerals are assigned to identical or similar components throughout the specification. Furthermore, some embodiments of the present invention are described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, identical components may have the same reference numeral whenever possible, even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of related known components or functions could obscure the essence of the present invention, such detailed description may be omitted.

[0037] In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended only to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by these terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that other components may be "interposed" between each component, or that each component may be "connected," "combined," or "connected" through other components.

[0038] A system and method for diagnosing the condition of an oiling device according to an embodiment of the present invention will be described in detail below with reference to the attached drawings.

[0039] In the drawings, FIG. 1 is an overall conceptual diagram briefly illustrating a lubrication device facility according to an embodiment of the present invention, and FIG. 2 and FIG. 3 are conceptual diagrams briefly illustrating a lubrication device equipped with a nozzle and a blade. FIG. 4 is a conceptual diagram briefly illustrating a lubrication amount measuring device.

[0040] Referring to FIG. 1, the overall oiling equipment (10) may have an oiling machine (300), a pinch roll (500), and an oiling amount measuring device (100) arranged along the direction in which the steel plate (or coil) (11) is conveyed.

[0041] The oiling device (300) applies oil to the steel plate (or coil) (11) using a nozzle or blade method.

[0042] The oiling device (300) can be provided in two forms as shown in FIGS. 2 and FIGS. 3. Referring to FIGS. 2, the oiling device (300) is of the nozzle type and performs oiling using a nozzle-type electrostatic oiling method. The oiling device (300) of this type atomizes oil using an air-type atomizing nozzle (320) and applies static electricity to the atomized oil particles to perform oiling on the steel plate (or coil) (11). For example, the oiling device (300) may be configured to include a main body (310) as shown in FIGS. 2, a nozzle (320) that performs oiling on the steel plate (or coil) (11) which is transported through a transport path provided in the center of the main body (310), an oil tank (350), and an air supply unit (360).

[0043] Referring to FIG. 3, the illustrated oiling device (300) is of the blade type and performs oiling using a blade-type electrostatic oiling method. The oiling device (300) of this type atomizes oil supplied from a metering pump (370) at the blade (330) and applies static electricity to the atomized oil particles to perform oiling on a steel plate (or coil) (11). For example, the oiling device (300) may be configured to include an oiling device body (310) as shown in FIG. 3, a blade (330) that performs oiling on a steel plate (or coil) (11) that is conveyed through a conveying path provided in the center of the oiling device body (31), an oil tank (350) that stores oil, and a metering pump (370).

[0044] Referring to FIG. 4, the oil application amount measuring device (100) measures the amount of oil applied to a steel plate (or coil (11) through an oiling device (300). The oil application amount measuring device (100) includes a base frame (101), a plurality of columns (103) installed at a predetermined height on the upper part of the base frame (101), and a girder (105) that horizontally connects the upper ends of the plurality of columns (103).

[0045] A steel plate transport path is provided on the lower side of the girder (105) through which a steel plate (or coil) (11) is transported in a set direction. A plurality of heads (110) are provided, which are installed to move left and right along the width direction of the steel plate, facing the upper and lower surfaces (hereinafter, front and rear) of the steel plate (11), respectively. Each of the plurality of heads (110) is equipped with at least one sensor (120), and the sensor (120) is mounted on the head (110) to measure the amount of oil applied to the steel plate (11) in conjunction with the movement position of the head (110).

[0046] Hereinafter, a system for diagnosing the condition of an oiling device according to an embodiment of the present invention will be described.

[0047] FIG. 5 is a block diagram showing the schematic configuration of a lubrication system condition diagnosis system according to an embodiment of the present invention, and FIG. 6 is a connection diagram briefly illustrating the entire facility of a lubrication system condition diagnosis system according to an embodiment of the present invention.

[0048] As described above, the oiling device condition diagnosis system (1000) according to one embodiment of the present invention refers to a system that diagnoses the condition of an oiling device (300) having a nozzle (320) or a blade (330) that sprays oil (i.e., rust-preventive oil) by using measurement data from an oiling amount measuring device (100) that measures the oiling amount (or oiling amount) of a steel plate (11).

[0049] A lubrication device condition diagnosis system (1000) according to an embodiment of the present invention utilizes measurement data from a lubrication amount measuring device (100) and includes a lubrication amount measuring data collection unit (210) configured using a server (or PC) (200), a lubrication amount measuring data processing unit (220), and a display (230), and includes a cleaning unit (400) that cleans by clearing clogged parts of a nozzle or blade when an abnormality is diagnosed in a lubrication device (300).

[0050] The oil application amount measuring device (100) includes a header (110) that moves left and right along the width direction of the steel plate and a sensor (120) mounted on the header (110) to measure the oil application amount of the steel plate.

[0051] The oil application amount measurement data collection unit (210) collects oil application amount (or oil amount) data measured by the oil application amount measuring device (100), i.e., the sensor (1200). It can be configured using a server (or PC) (200), etc.

[0052] The oil attachment amount measurement data processing unit (220) creates and processes visualized data to visualize the collected oil attachment amount measurement data and output it to the display (230). For example, it may be configured as a processing device that executes an algorithm or AI program capable of processing and visualizing the measurement data collected from the oil attachment amount measurement data collection unit (210) and displaying it on the screen.

[0053] The cleaning unit (400) refers to a device that removes a blockage by cleaning the blockage area using a method such as air purging when it is determined that the nozzle or blade equipped in the oiling device (300) is in a blocked state based on visualized data output on the display (230). For example, the cleaning unit (400) may be configured to include an air purge pipe that cleans the blockage area by spraying air onto the nozzle or blade when the nozzle or blade is determined to be in a blocked state.

[0054] In addition, the oil dispenser status diagnosis system (1000) according to one embodiment of the present invention may further include an oil dispenser abnormality status notification unit, which, although not separately illustrated, notifies the user of whether there is an abnormality in the oil dispenser (300) through a user's terminal (or smartphone) when a nozzle or blade blockage is determined. Through this, the user can monitor whether there is an abnormality in the oil dispenser (300) in real time while it is in operation, thereby allowing the user to check the status of the oil dispenser (300) more quickly and accurately.

[0055] Referring to FIG. 6, the amount of oil applied (or the amount of oil applied) of a steel plate (11) is measured using a sensor (120) mounted on the head (110) of the oil application amount measuring device (100), and the measured data can be transmitted and collected to the oil application amount measurement data collection unit (210, see FIG. 5) of a server (or PC) (200) via a local control panel (180) and a main processor (190).

[0056] At this time, the sensor (120) includes multiple dots for measuring the amount of oil applied to the steel plate as the head (110) moves. The multiple dots can be matched to multiple points that divide the steel plate at uniform intervals along the width direction.

[0057] For example, in the measurement data, the x-axis values ​​represent the dots, and it can be set to measure six points in the width direction of the steel plate. The data measured in this case is " Left 1 → Left 2 → Left 3 → Right 3 → Right 2 → Right 1 → Right 2 → Right 3 → Left 3 → Left 2 → The 10 dots marked in bold in "Left 1" can form one cycle. For example, if the width of the steel plate is 1200mm, the first dot can be matched as Left 1: (0~200mm), the second and tenth dots as Left 2: (200~400mm), the third and ninth dots as Left 3: (400~600mm), the fourth and eighth dots as Right 3: (600~800mm), the fifth and seventh dots as Right 2: (800~1000mm), and the sixth dot as Right 1: (1000~1200mm).

[0058] At this time, the steel plate (11) is not stationary but is being transported, that is, moving forward, and the head (110) of the oil application amount measuring device (100) moves back and forth along the width direction of the steel plate at a constant speed. Therefore, the number of x-axis values ​​of the collected data varies depending on the speed of the steel plate's movement and the length of the steel plate, but since this is converted back into the width of the nozzle or blade, the difference in the number of collected data does not affect the monitoring.

[0059] And the number of multiple points can be determined based on the following mathematical formula 1.

[0060] [Mathematical Formula 1]

[0061] RBI count = (L / LS)*60 / t

[0062] Here, L is the length of the steel plate, t is the travel time per point of the sensor, and LS is the speed of the steel plate.

[0063] If the length (L) of the steel plate is 1000m, the sensor's travel time (t) is 3 seconds, and the steel plate's travel speed (LS) is 100m, it can be seen that the number of x-axis dots is 200.

[0064] And the oil application amount measurement data processing unit (220, see FIG. 5) can create a measured raw data graph (see FIG. 9) with multiple dots as x-axis values ​​and the oil application amount measured by the sensor at each of the multiple dots as y-axis values, and accumulate and record the oil application amount for each width position of the steel plate.

[0065] In addition, the oil application amount measurement data processing unit (220, see FIG. 5) can calculate the average value of the oil application amount for each width position of the steel plate using the accumulated recorded oil application amount for each width position of the steel plate.

[0066] In addition, the oil application amount measurement data processing unit (220, see FIG. 5) can calculate the average value of the oil application amount (or oil amount) for each width position of the steel plate for the front and back sides in the width direction of the steel plate. Using the average value of the oil application amount (or oil amount) calculated in this way, the table shown in FIG. 10 can be created. When work on one steel plate (or coil) is completed, data such as FIG. 10 can be created, and assuming that work on 40 coils is performed during one day, the cumulative oil application performance visualization data result shown in FIG. 12 can be derived.

[0067] The oil application amount measurement data processing unit (220, see FIG. 5) can update the oil application amount measurement data by repeatedly calculating the average value of the oil application amount for each width position of a plurality of steel plates. If the width sizes of each of the plurality of steel plates are different, the oil application amount measurement data processing unit (220, see FIG. 5) can perform position alignment based on the width center position of each of the plurality of steel plates.

[0068] Meanwhile, the oil application amount measurement data processing unit (220, see FIG. 5) can determine the nozzle or blade blockage status in some areas (i.e., areas determined to be nozzle or blade blockage areas) when there is a difference between the visualized data of some of the multiple dots and the visualized data of the remaining areas.

[0069] Referring to FIG. 12, the cumulative oil application performance based on the front of the steel plate is visualized as a data result, and it can be visually recognized that the average oil application amount at a point approximately 800mm from the left 0 point (red dotted box area) is lower compared to other areas. This visualized data result screen, such as FIG. 12, is automatically updated when work on the steel plate (or coil) is completed, and through AI learning, at the end of each steel plate (or coil) operation, the user can monitor whether the nozzle or blade is clogged and where it is located by judging based on the cumulative performance of the previous 12 hours. In addition, when clogging of the nozzle or blade is detected, the cleaning unit (400), for example, the air purge pipe, is operated in an automated manner to take action before the oil hardens at the clogged area, or a worker can manually clean (remove) the nozzle or blade after the equipment is operated.

[0070] Hereinafter, a method for diagnosing the condition of an oiling device according to one embodiment of the present invention will be described.

[0071] FIG. 7 is a flowchart of a method for diagnosing the condition of an oiling device according to an embodiment of the present invention, and FIG. 8 is a flowchart showing the detailed step configuration of the oil application amount measurement data processing step among the method for diagnosing the condition of an oiling device according to an embodiment of the present invention.

[0072] A method for diagnosing the condition of a lubricator according to one embodiment of the present invention refers to a method for diagnosing the condition of a lubricator having a nozzle or blade that sprays rust-preventive oil by using measurement data from the aforementioned lubricant attachment amount measuring device.

[0073] Referring to FIG. 7, the oiling device condition diagnosis method includes a step of measuring the amount of oil applied (S100), a step of collecting oil applied amount measurement data (S200), a step of processing oil applied amount measurement data (S300), a step of displaying visualized data output (S400), a step of determining the abnormal state of the oiling device (S500), and a cleaning step (S600, S700).

[0074] In the oil adhesion amount measurement step (S100), the oil adhesion amount (or oil amount) of the steel plate (or coil) is measured using a sensor of the oil adhesion amount measurement device. Then, in the oil adhesion amount measurement data collection step (S200), the measurement data of the oil adhesion amount (or oil amount) measured through the sensor of the oil adhesion amount measurement device in the previous step can be transmitted to and collected from a server (or PC), etc. Next, in the oil adhesion amount measurement data processing step (S300) and the visualization data display output step (S400), the data collected in the oil adhesion amount measurement data collection step can be visualized and output to a display.

[0075] The oil application amount measurement data processing step (S300) may further include the detailed steps illustrated in FIG. 8. Referring to FIG. 8, first, a step (S310) of matching the x-axis point with the steel plate width position may be performed. Subsequently, a step (S320) of accumulating and recording the y-axis value (i.e., oil application amount) for each steel plate width position may be performed. Subsequently, a step (S330) of calculating the average value of the y-axis value (i.e., oil application amount) for each steel plate width position may be performed. Afterward, a step (S340) of updating the measurement data upon completion of one steel plate operation and a step (S350) of aligning the steel plate width center reference to match the measurement data of multiple steel plates may be performed. Then, a step (S360) of visualizing the accumulated measurement data may be further performed.

[0076] Meanwhile, in the step of determining the abnormal state of the lubricator (S500), it can be determined whether the nozzle or blade of the lubricator is clogged based on the visualization data displayed on the display. Next, if it is determined based on the visualization data displayed on the display that at least a portion of the nozzle or blade of the lubricator is clogged, the clogged area can be cleaned by washing the nozzle or blade in the clogged area using an air purge method or the like. If the equipment is stopped, an operator can directly inspect and clean it.

[0077] In addition, according to an embodiment of the present invention, after the oil application amount measurement data processing step (S300), when the oiling device nozzle or blade blockage status is determined based on the visualized data (S500), an additional oiling device abnormality notification step can be performed to notify the user of whether there is an abnormality in the oiling device.

[0078] As described above, according to the configuration and operation of the present invention, the clogging status of the oiling machine nozzle or blade can be diagnosed by utilizing result data from a device measuring the amount of oil applied to a steel plate, and prompt action can be taken to prevent the nozzle or blade from clogging. As a result, surface defects on the steel plate (e.g., oil streaks, oil stains, etc.) can be prevented, and there is an advantage in preventing VOCs from the customer. Previously, clogging of the oiling machine nozzle or blade could only be recognized after an operator visually inspected oil streaks or stains sprayed on the surface of the steel plate; if the operator failed to visually inspect it, the problem was recognized only after the product arrived at the customer, leading to the issue of VOCs being received. According to the present invention, the clogging status of the oiling machine nozzle or blade can be diagnosed by utilizing result data from a device measuring the amount of oil applied to a steel plate that is currently in use. For example, among the result data of the oil application amount measuring device, the x-axis represents the dot point and the y-axis represents the oil application amount. By organizing these data by continuous coil (i.e., in chronological order) and displaying them in relation to the nozzle or blade width (w), areas with relatively low oil application amounts can be detected. The areas with relatively low oil application amounts detected in this way are determined to be areas where nozzle or blade clogging is progressing. Subsequently, defects can be prevented by clearing the clogged parts of the nozzle or blade through air purging during operation or by cleaning the corresponding parts during equipment inspection after operation. In particular, although there was previously no separate means to estimate the clogging status of the nozzle or blade during operation, the present invention has the advantage of preventing defects and preventing equipment failure by utilizing the result data of the oil application amount measuring device of the steel plate to estimate the condition of the nozzle or blade during operation and taking preliminary measures before the clogging becomes fixed.

[0079] Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by a person skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration of the present invention were not explicitly described while describing the embodiments of the present invention above, it is natural to acknowledge that the effects predictable by said configuration should also be recognized. Explanation of the symbols

[0080] 10: Oiling equipment 11: Steel plate (or coil) 100: Oil adhesion amount measuring device 101: Base Frame 103: Column 105: Girder 110: Head 120: Sensor 180: Local Control Panel 190: Main processor 200: Server (or PC) 210: Oil adhesion amount measurement data collection unit 220: Oil application amount measurement data processing unit 230: Display 300: The Journey to the West 310: Main body of the oiling machine 320: Nozzle 330: Blade 350: Oil tank 360: Air supply unit 370: Metering pump 400: Washing section 500: Pinch Roll 1000: Oiling System Status Diagnosis System

Claims

Claim 1 A lubrication device condition diagnosis system that diagnoses the clogging status of a nozzle or blade of a lubrication device using measurement data from a lubrication amount measuring device that measures the amount of lubrication applied to a steel plate, comprising: a lubrication amount measurement data collection unit that collects measurement data from the lubrication amount measuring device; a lubrication amount measurement data processing unit that processes data to visualize the collected lubrication amount measurement data and output it to a display; and a cleaning unit that cleans the clogged area of ​​the nozzle or blade when the clogging status of the nozzle or blade is determined based on the visualized data; and a head installed in the lubrication amount measuring device and reciprocating left and right in the width direction of the steel plate; A lubrication device condition diagnosis system comprising: a sensor mounted on the head, which measures the amount of oil applied to the steel plate in conjunction with the movement position of the head, and transmits the measured data to the oil application amount measurement data collection unit; wherein the sensor includes a plurality of points for measuring the amount of oil applied to the steel plate according to the movement of the head, and the plurality of points are matched to a plurality of points that divide the steel plate at uniform intervals along the width direction; and the oil application amount measurement data processing unit creates a measured raw data graph with the plurality of points as x-axis values ​​and the amount of oil applied measured by the sensor at each of the plurality of points as y-axis values, and accumulates and records the amount of oil applied according to the width position of the steel plate. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 In claim 1, the oil application amount measurement data processing unit further comprises calculating an average value of the oil application amount for each width position of the steel plate using the accumulated recorded oil application amount for each width position of the steel plate. Claim 6 In paragraph 5, the above-mentioned oil application amount measurement data processing unit is an oil application condition diagnosis system that calculates the average value of the oil application amount for each width position of the steel plate for the front and back sides in the width direction of the steel plate. Claim 7 In claim 5, the above-mentioned oil application amount measurement data processing unit is an oil application condition diagnosis system that performs an update of oil application amount measurement data by repeatedly calculating the average value of the oil application amount for each width position of a plurality of steel plates. Claim 8 In claim 7, the above-mentioned oil application amount measurement data processing unit is an oiling machine condition diagnosis system that performs position alignment based on the width center position of each of the multiple steel plates when the width sizes of each of the multiple steel plates are different. Claim 9 In claim 1, the oil application amount measurement data processing unit is an oil application condition diagnosis system that determines the nozzle or blade clogging condition in the partial area when a difference occurs between the data visualized in the partial area of ​​the plurality of dots and the data visualized in the remaining area of ​​the plurality of dots. Claim 10 A lubricator condition diagnosis system further comprising, in claim 9, a lubricator abnormality condition notification unit that indicates whether there is an abnormality in the lubricator when the nozzle or blade blockage condition is determined. Claim 11 In claim 9, the cleaning unit comprises an air purge piping system that cleans the clogged area by spraying air onto the nozzle or blade when the nozzle or blade is found to be clogged. Claim 12 A method for diagnosing the condition of a lubricator using a lubricator condition diagnosis system of claim 1, comprising: a step of collecting measurement data of the amount of lubricant attached to the lubricator for measuring collecting the amount of lubricant attached to the lubricator for measuring the amount of lubricant attached to the lubricator for processing the data so as to visualize the data collected in the step of collecting the amount of lubricant attached to the lubricator for displaying it. Claim 13 A method for diagnosing the condition of a lubricator, comprising: a lubricator abnormal condition notification step in claim 12, which notifies the user of the abnormal condition of the lubricator when the nozzle or blade blockage condition is determined based on the visualized data. Claim 14 A method for diagnosing the condition of an oil dispenser according to claim 12, comprising a cleaning step of cleaning the nozzle or blade blockage area when the nozzle or blade blockage condition is determined based on the visualized data.

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