KR0173508B1 - Cobol data analysis device for hot rolling - Google Patents

Abstract

The present invention relates to an apparatus for analyzing a hot rolled rolling line cobble data, and when the state of rolling in a hot rolled rolling line is not normal, a driver checks and detects a state of a rolling stop switch to be operated when it is determined to be inoperable. The cobble switch confirming unit (a) and the control signal (b) of the function to control the respective mills, reference 2a, speed (2b), current (2c), voltage (2d), the amount of reduction ( 2e) Detects and draws all rolled coble data such as motor internal temperature (2f) and power supply (2g) from the calculator bus of the monitoring unit of FIG. 1, and outputs rolled coble data for controlling the rolling mill during hot rolling. Processed in (d), the coble data drawn out from the data bus is processed at high speed by the bus pull-out data sampling unit 4a, and stored for a predetermined time continuously. When a call is generated, the existing monitoring device unit generates an alarm through the buzzer f and the lamp g, and the plurality of cobble control signals are data indicating each state of the rolling mill detected at high speed through the input side bus of the controller. And a computer d of an output contents section for displaying the various analysis screens through the monitor e so as to easily process the data and to analyze the data before and after the time when the coble signal is generated.

Description

Hot Rolled Line Coble Data Analysis Device

The present invention relates to an apparatus for analyzing a hot rolled rolling line coble data, and more particularly, when a state in which a hot rolled rolling line is rolled by a rolling mill is not normal, when the driver determines that it is inoperable, the rolling stop switch is turned on. In this situation of rolling stop (hereinafter referred to as 'Cobble'), accurate real-time data before and after rolling stop is continuously stored on a computer and displayed on the monitor's Cobble Analysis data screen to analyze the cause of abnormal hot rolling. It is related with the insulation rolling line coble data analysis apparatus which can be performed.

In general, hot rolled rolling lines are subjected to hot rolling by a mechanical rolling mill system, electrical precision control, driving power supply, and driver's operation. If it is judged impossible by the driver, the hot rolled rolling line is stopped by the operation of the rolling stop switch in the operation desk, and the rolling line is restarted after the action is taken for the cause of the abnormality, so that the hot rolled rolling process can be performed smoothly. .

As such, when the cobble is generated in the rolling process, various conditions occur in mechanical devices, electrical devices, and operating conditions, and thus, it is difficult to find a location or location of a failure without skilled experience or expertise in related equipment. . In particular, failure to store data indicating the situation at the time of failure for abnormal signals generated by electrical devices delays the analysis of the cause of the failure and the rapid response, and thus continuously spreads the equipment to other parts or devices having different aging conditions. Serious problems arise.

The conventional method for solving the above problems is that when the bobble occurs, the buzzer and the lamp operate by the cobble switch operated according to the driver's judgment and generate an alarm, as shown in FIG. 1a through the alarm recording apparatus. The data of the reference, speed, current, voltage, and rolling amount are presented for the coble occurrence date and time, the code, and 100 [ms], 200 [ms], and 300 [ms] before the occurrence of the coble for each hot rolling mill. Since three data before the occurrence of the cobble 300 [ms], there is a limit to analyze the cause of the cobble, there is a problem in that the analysis time is very long because the person in charge must convert the data output as a number and then analyze it.

The present invention is to solve the above-mentioned problems, and when a cobble occurs in the rolling process, the data for a predetermined time before and after the failure for the precise control signal of the rolling device is displayed on the screen of the monitor to facilitate the analysis of the cause of the failure. Accordingly, an object of the present invention is to provide a hot rolled rolling line cobble data analyzing apparatus capable of quickly and accurately coping with a cause of failure when a coble occurs in the hot rolled rolling apparatus.

1 is a block diagram of a hot rolled rolling line cobble data analysis apparatus according to the present invention,

Figure 1a is the conventional coble data output using the alarm recording device,

1b is a schematic diagram of a rolling mill and a sensor.

1c is a block diagram of a bus data extractor.

1d is a diagram of a coble data processing configuration.

2 is a cob integrated screen configuration of the rolling mill,

Figure 2a is a configuration diagram of the analysis screen of the speed and current of the mill control signal,

2c is a configuration diagram of a voltage analysis screen of a mill control signal;

3 is a configuration diagram of a screen showing a coble situation by rolling mill control data,

4 is a configuration diagram of a mill cobble data inquiry screen.

In order to achieve the above object, the present invention relates to a cobble switch for detecting a state of a rolling stop switch to be operated when it is determined that the driver is incapable of operating when the state of rolling by a rolling mill is not normal. As shown in FIG. 1B, the reference unit 2a, speed 2b, current 2c, voltage 2d, rolling amount 2e, motor internal temperature 2f, and supply power 2g) Rolling coble data such as the detection and withdrawal of the whole amount from the operator bus of the monitoring unit of FIG. When a cobble signal, which is a rolling stop signal, is generated according to the determination of the rolling situation, an alarm is generated through the alarm means (f, g), and when a cobble signal occurs on the monitor screen (e) of the output content. There is provided a hot-rolled rolling line kobeul data analyzer characterized in that the treatment with various screen analysis and graphs to easily analyze the data before and after the computer is configured with the function to display through the monitor.

EMBODIMENT OF THE INVENTION Below, the hot rolled rolling line coble data analysis apparatus which concerns on this invention is demonstrated in detail.

First, the configuration of the hot rolled rolling line cobble data analyzing apparatus according to the present invention is generated by a rolling mill and a sensor configuration (Fig. 1b) showing signal portions for respective portions of the hot rolling mill applied to the data portion of the motor system of FIG. The entire cobble data control signal of the rolled part is drawn out in real time from the input side bus of the monitoring device part of FIG. 1, and the cobble data process (FIG. 1d) is performed by the computer d of the output content part. By the driver when the driver checks directly when the state of rolling is not normal and judges that it is inoperable, the cobble switch checking unit (a) of FIG. Bus data extractor (Fig. 1c) which detects speed, current, voltage, reduction, temperature and power signals After all the COBLE data that are changed during hot rolling are stored in real time through the device, when a driver presses the COBLE switch, which is a rolling stop signal, according to the driver's judgment, an alarm is generated through the buzzer (f) and the lamp (g). The monitoring device unit and each state cobble data of the rolling mill sensed by the plurality of rolling mill sensors are applied to the monitoring device unit to facilitate analysis of the cobble data before and after the time point at which the coble is generated. It consists of a monitor (e) and a computer (d) which show a processing screen for analyzing the Cobble data to be processed.

Referring to the accompanying drawings, the hot-rolled rolling line cobble data analysis apparatus according to the present invention made as described above in more detail as follows.

FIG. 1 is a block diagram of an apparatus for analyzing a hot rolled rolling line coble data according to the present invention, FIG. 1a is a conventional cobble data output using an alarm recording device, FIG. 1b is a diagram of a rolling mill and a sensor, and FIG. 1c is a bus Fig. 1D is a schematic diagram of a cobble data processing, Fig. 2 is a schematic diagram of a cobble screen of a rolling mill, Fig. 2A is a schematic diagram of an analysis screen of a speed and current of a rolling mill control signal, and Fig. 2C is a rolling mill. FIG. 3 is a configuration diagram of a voltage analysis screen of a control signal, and FIG. 3 is a configuration diagram of a screen showing a cobble state by rolling mill control data, and FIG. 4 is a configuration diagram of a rolling mill cobble data inquiry screen.

The signals generated in the data part of the motor system of FIG. 1 are control signals detected by the angle sensor parts of the rolling mill shown in FIG. 1b, and the cobble switch confirming unit 3 operated by the driver in accordance with the occurrence of abnormal operation of the rolling mill. It consists of a rolling mill control signal (b) as a control signal consisting of a reference, a speed, a current, and a reduction amount, and control signals which are temperature and power signals inside the rolling mill motor. In FIG. 1b, the signal for controlling the rolling mill includes a reference 2a, a speed 2b for measuring the rotational speed of the rolling mill motor, a current 2c flowing through the rolling mill motor supplied through the power converter, and a voltage supplied to the rolling mill motor. (26) The rolling amount 2e reference made up of the rolling amount 2e of the upper rolling roll applied to the rolling mill and the rolling amount signal are controlled by controlling the power conversion device of the rolling mill motor under the control instruction of the computer d. Each control signal is installed at the input of the operator in the monitoring unit, and its detailed configuration is the same as the bus data extractor of FIG. 1c. The bus data extractor is directly connected to the operator input bus to control the bus signal. It consists of an operator control signal 3a for storing, an operator control address signal 3c for storing, and an operator data signal 3e having the value of the address, and the dual port status. RAM (3j), the data of the address being present in the computing unit input bus is stored, is read, the data of the address coming from the computer bus. The operator control signal 3a is decoded by the operator address selector 3b to store data of the operator control signal buffer 36 and the operator data signal input buffer 31, which are switching buffers, in the dual port static RAM 3j. Outputs the operator bus input selection signal 3g that matches the timing. The operator control signal buffer 3d and the operator data signal input buffer 3f, which have received an output enable signal by the operator bus input select signal 3g, are the input / output ports of the dual port static ram 3j to the dual port static ram address signal ( 3h) is specified and applied, and stores the dual port static RAM data signal 3i, which is an output signal of the operator data signal input buffer 3f. The computer bus is composed of a computer bus data signal (3u), a computer bus address signal (3w), a computer bus control signal (3x), and a computer bus receiving a computer bus address signal (3w) and a computer bus control signal (3x). The address selection section 3y designates that the computer data input selection signal 3n and the computer data output selection signal 31 can be outputted when the input / output address of the computer, i.e., the signal of the assigned specific address matches the control signal. . The computer data input selection signal (3s) designates to output data stored in the address data storage (3m) for addressing to send out the dual port static ram address signal (3k) and to read the dual port static ram (3j). In this case, data is loaded on the dual port static RAM data signal 3o. Since the loaded data is designated to be output to the computer data input buffer 3p, it is input to the computer data bus 3u via the computer data input buffer 3P and read by the computer. As a result, the computer acquires the data of the calculator in real time.

The rolling mill control signal and the temperature, power signal and the driver's rolling stop signal obtained in real time are applied to the computer d of the output contents in FIG. 1, and the bus drawing data sampling unit ( 4a) That is, the processing signal is sampled and applied to the alarm inspection processing unit 4c through the field data collection unit 4b so that real-time data acquired from the operator input side bus is the same as the operation processing speed, and the inspection processing unit 4c While keeping the rolling mill operation data processed in real time continuously for a predetermined time, the continuous inspection is performed to check whether the cob stop signal operated by the driver is changed. When the operation signal of the switch of Cobble is detected, the control data continuously processed and stored in real time is applied to the alarm data storage unit 46 and stored and automatically displayed on the monitor, and the same data is applied to the medium alarm data processing unit 4e. 5 times of control data occurrences are stored in the analysis data storage section 4f.

The cobble comprehensive analysis screen of FIG. 2 is processed in real time by the cobble data processing apparatus (FIG. 1d) of the monitor e of the computer d by the signal of the rolling stop cobble switch a of FIG. 1. This is the equipment configuration screen (a) in which the position of the material being rolled, the alarm status of the power system and the flow of the material are displayed in green and red, and the data of the control system is displayed as numerical values at the equipment location on the screen. . The speed and current data of all rolling mill control signals represent the data of 4 minutes before the cobble switch signal is input and 5 minutes of coble data from 1 minute, and is a screen displaying the rolling control speed and current. Among the rolling mill control signals, the reference and the reduction data are displayed for 5 minutes of cobbling data from 4 minutes before to 1 minute after the cobble switch signal is input. And the screen (d) which presents the voltage is graphed based on the data of 5 minutes before and after the data generation, and thus the rolling control signals by the input of the driver's cobble switch signal are analyzed in the abnormally unlit state at the time of hot rolling. Automatically display on the screen.

In more detail, the equipment status display screen (a) of the integrated screen displays red-light breakers and alarm signals in the power system when the operation stop coble switch is operated according to the driver's situation determination. It shows in red where the rolled material was located in the rolling mill. From the control graph screen that is automatically displayed, select the screen (b) (c) indicating the abnormal operation. To enlarge the screen, select ▲ at the top right of each screen. When the analysis button (a) is selected on the selected screen, that is, the enlarged screen of FIG. 2a, the screen data window screen (b) is presented. The numerical data presented here represent 3000 data values sampled for 5 minutes in units of 100 [ms], and the same values as the graphs are displayed numerically. The bar mark (g) located on the graph is moved left and right by button selection of the move button frame (c, d), and at this time, the number bar indicator (h) moves at the same time, and this number bar indicator (h) is Displays the value of the graph of the part with bar (g) as a number. In order to easily track the abnormal part in the graph, a button of the moving button frame (c) is selected to identify the abnormal operation part in all data (g). Once the parts of the abnormal operation data are identified in all the control signals, for a more detailed analysis, the normal control signals are separated using the individual signal selection button (b) and all signal selection buttons (c) on the screen as shown in FIG. Remove and select the signals related to the abnormal operation. If the bar indicator d is positioned e in the abnormal operation signal, the value f of the raised position on the graph can be known from the numeric indicator a. This means that the abnormal operation data (e) due to the movement of the bar indicator (d) and the data (f) of the numeric bar indicator due to the movement of the numeric indicator (a) have the same movement, that is, the data position of the bar indicator displayed on the screen. (e) indicates that the value is equal to the value f located on the screen data numeric bar indicator. 2C is an analysis screen of the mill control signal, and the analysis operation method is as described above, and this screen shows normal data contents.

The analysis as described above shows that the normal rolling of the material is finished and the next rolling is started (a), as shown in the situation diagram according to the rolling mill control data of FIG. 3, and the rolling reduction of the last rolling mill is increased temporarily (b). The data of the rolling mill shows that it has been in an abnormal operation state after the stop (c). At this time, the rolling stop coble switch is operated (d) at the discretion of the driver. This is because the alarm was triggered by the overcurrent (h 'in Fig. 2a) of the last rolling mill. As a result, an alarm is generated in the last rolling mill, which indicates an abnormal operation in a normal rolling state, and the driver operates a cobble switch for stopping all rolling mills. Such data is stored in the fault list window screen (d), which is a storage location of the computer as shown in FIG. 4, and five times of coble data are stored, and the past generated coble data is also monitored by the screen as shown in FIG. After switching to Coble Data Analysis screen mode (i) and selecting the equipment name of the cobble generating area (a → b → c), the fault list window screen (d) is presented, so select the desired location (e) and selector button ( Selecting f) displays a rolling mill coble data analysis synthesis screen as shown in FIG. The presented comprehensive screen is operated by analyzing the content as described above.

The hot rolled rolling line cobble data analyzing apparatus according to the present invention made as described above comprehensively analyzes the precise data of the rolling mill sampled for 5 minutes in units of l00 ms during the rolling stop state occurring during rolling, so as to find out the exact cause and to take prompt measures. This reduces the rolling stop time and provides an effect of increasing the yield.

Claims (1)

Cob confirmation unit (a) that detects the state of the rolling stop switch operated when the driver checks when it is determined to be inoperable when the state of rolling in the hot rolling line is not normal (a), and reference, speed and current for each rolling mill Bus data extractor (1-3) for real-time sensing of voltage, rolling amount, temperature and power, and electrical real-time control signal of rolling mill system of rolling line through the above bus data extractor If a cobble signal, which is a rolling stop signal, is generated according to the driver's driving situation determination, the computer d processing the control state data of the rolling mill detected by the bus data extractor, and the cobble before and after the time point at which the cobble signal is generated. The monitor (e) can track the contents of the Cobble data on various screens for easy analysis. Hot-rolling line kobeul data analyzer characterized in that.