JP2005249511A - Method of information reference for appearance development of steel strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for referring to the data of the appearance extend elevation of a steel strip, when the operator enters the flaw data found out by the visual inspection of the steel strip to the appearance development, displayed on the screen of a flaw recording apparatus to record the same. <P>SOLUTION: The method of referring to the data of the appearance developed drawing of the steel strip includes a process of measuring the relative position in the longitudinal direction of the steel spring, at a position where the visual inspection of the steel spring is performed and a process of displaying a graphical pointer at the relative position measured in the appearance extend elevation by the measuring processing; and the operator can enter the flaw data, while referring to the display position of the graphical pointer. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention inspects the appearance of steel strips such as cold-rolled steel sheet, tin steel sheet, galvanized steel sheet, stainless steel sheet, etc., and presently inspects the result on the screen displayed when recording and inputting the result as development view information of the external view The present invention relates to an information reference method for an external development view of a steel strip that can efficiently display the position in the longitudinal direction of the inside and facilitate input.

  In the following description, as an example, an appearance development view in an appearance inspection in a tin plating step among steps of manufacturing a tin steel plate will be described, but it goes without saying that the present invention is not limited to this.

  The tin plate is a tin-plated steel plate. First, a hot-rolled steel plate is rolled in a cold rolling process (TCM: Tandem Cold Mill), and then annealed in a continuous annealing process (CAL: Continuous Annealing Line). Tin plating is performed in (ETL: Electrolytic Tinning Line).

  In the manufacture of such a tin steel sheet, an appearance inspection in which an operator visually inspects the steel sheet surface as a part of quality assurance in the process occupies an important position.

  In the appearance inspection, the operator inputs defect information using a computer terminal.

  At the time of input, the operator records in an area displaying the external development view on the screen using an input means such as a mouse or an electronic pen.

  Patent Document 1 discloses a quality information management method using this appearance development drawing, and the quality information generated during the manufacture of the steel material is disclosed by other manufacturers and / or customers on the downstream side that further process the steel material. It can be shared. And in order to make the sharing possible, in each process of manufacturing the steel material, the information of the external development view is accumulated on the database.

  Here, the appearance development view is a two-dimensional display of quality information such as defects that is displayed on the screen of the defect recording device. In particular, the appearance corresponding to which position on the product is developed. FIG. As a typical example, there is an expanded view of the appearance of a thin sheet product (strip) in the form of a coil, indicating how far the defect is from the end of the coil, including the coil front and back and the coil width direction position. Is something that can be done.

  In addition, the thin plate product in the coil form has a length of several thousand meters with respect to the normal size of around 1 m, so that it is easy to display the entire appearance development view on the display. The ratio of the long side to is compressed and displayed.

Conventionally, when an operator finds a defect or defect on the surface of a steel strip traveling on an inspection line, when the record is input to an external development view on a tablet screen of a computer terminal, for example, an LED installed on the machine side of the inspection line By looking at the numbers displayed on the device or tablet screen, you can immediately check the longitudinal position of the steel strip (ie, the distance (m) from the top), and determine the corresponding position in the exterior development view based on that number. And was actually recording.
JP 2003-84822 A

  As described in Patent Document 1, the introduction of a computer system for managing quality information makes it possible to share information on the appearance development of steel strip in a plurality of processes, so that the inspection load on the operator can be greatly reduced. became.

  However, there is a big problem with the method of inputting defect information into a computer terminal.

  In the conventional method, it is necessary to confirm the longitudinal position of the steel strip with the numbers displayed on the display screen of the LED device or tablet screen, and trying to input information on defects and defects in the frame of the external development view In this case, it is necessary to promptly determine the position of the external development view corresponding to the confirmed number. In other words, the operator needs to read the displayed numbers and immediately determine the position to be input on the external development view, and to perform the actual input, and is forced to perform very troublesome work in a short time. It was. Moreover, the accuracy and speed of the input are greatly affected by individual differences among operators, and the load on the operators is also large.

  As a result, there is a problem that the accuracy of input to the appearance development drawing is deteriorated, and the appearance inspection itself is neglected due to the input.

  The present invention makes it possible to easily input defects, which has been troublesome in the past, and greatly reduces the load on the operator.

  According to the present invention, when defect information is input to the appearance development view of a computer terminal in appearance inspection, the longitudinal position of the steel strip currently inspected is always displayed on the appearance development view with a graphical pointer. It is characterized by.

  The inventors have carefully examined the operator's input work, examined how to make it possible to input defect information as quickly as possible and with minimal load, and In order to grasp it, they broke the conventional concept that it was necessary to display numbers, and found a method for graphical display using a graphical pointer.

  The operator can input a defect or defect according to the position of the graphical pointer while referring to the graphical pointer, and can easily perform input using an input means such as a mouse operation of an electronic pen or a pointer on the screen. it can. When inputting, the display location of the graphical pointer can be set as the input start point and / or end point, and can also be input by tracing from above.

  The graphical pointer is not particularly limited. For example, a display such as a thin line or a dotted line, or a display that is not a number such as “↓ (arrow)” or “▼ (triangle)” can be suitably used. .

  That is, the present invention relates to the information on the development of the steel strip when the operator inputs and records the information of the defect found by the appearance inspection of the steel strip on the development of the appearance displayed on the screen of the defect recording apparatus. In the reference method, a step of measuring a relative position in a longitudinal direction of the steel strip at a position where an appearance inspection of the steel strip is performed, and a graphical pointer is displayed at the relative position measured by the measuring step in the appearance development diagram And a step of referring to information on an exploded view of the steel strip, wherein the operator can input the defect information while referring to the display position of the graphical pointer. Is the method.

According to the present invention, defects generated in a steel strip can be easily input and recorded in an external development view on a display screen of a computer terminal, and the following effects can be achieved.
1. The input time for the operator to record is shortened, the time spent on the appearance inspection itself can be increased, and the inspection rate is improved.
2. The operator can accurately grasp the input position of the defect appearance development map, the input accuracy has been improved, the recording accuracy has been improved, and the description errors have been reduced.

  The best mode for carrying out the present invention will be described by taking the tin plating step of FIG. 4 as an example.

  In the tin plating step, the steel strip 10 unwound by the uncoiler 2 is first plated in the electroplating tank 3, and then in the appearance inspection step 4, the appearance of the steel strip surface is inspected. The operator 12 inspecting in the appearance inspection process 4 discriminates the defects found in the appearance inspection process 4 through the input operation on the inspection input tablet 11, and each of the defects generated in spots or continuously generated is detected. The input to the tablet screen of the inspection input tablet 11 is performed according to the defect. In the following description, it is assumed that an electronic pen is used for input on the external development view displayed on the tablet screen. However, in the present invention, a screen other than the tablet screen may be used as the external development view, and the input is performed by operating the pointer on the screen with a mouse or the like other than the electronic pen as a pointing device. But it goes without saying.

  The result input as described above is displayed on, for example, the display device 13 installed in the vicinity of the electroplating tank 3, and is displayed on the display device installed in various places such as a lower process not shown here.

  FIG. 3 schematically shows an example of the inspection result input screen 21 of the inspection input tablet 11 installed in the appearance inspection process in the tin plating process.

  In this inspection result input screen 21, the instruction information of the steel strip currently being inspected is displayed on the instruction information display section 22, and the results of appearance inspection on the front and back surfaces are input as the defect input area for the operator. An appearance development view 25 is prepared. The operator appropriately selects and operates a display operation button or the like on the inspection result input setting unit 24, and inputs required defect data into the appearance development view 25. The screen control input unit 23 is an area for inputting general information such as the operator's name and switching the screen.

  On this screen, the operator inputs the defect found in the appearance inspection into the appearance development view 25 using the electronic pen 20. At this time, as shown in FIG. 1, in the present invention, a relative position in the longitudinal direction of the steel strip at the position where the appearance inspection is performed, for example, a pulse generator provided on a predetermined roll with a distance from the top position is used. Then, a graphical pointer 27 is displayed at this relative position in the external development view 25. This measurement step and display step allow the operator to input defect information found by visual inspection while referring to the graphical pointer 27, thereby facilitating the operator's input. In FIG. 1, a graphical pointer 27 is configured by combining ▼ (triangle) and a dotted line, and indicates the relative position in the longitudinal direction currently being inspected.

  For example, if the total length of the steel strip is 16000 m and the longitudinal position currently being inspected is 8000 m from the top position, the entire graphical pointer 27 is 8000 m / 16000 m = 50% from the top position on the left side of the external development view 25. It is displayed at the position. The graphical pointer 27 moves from left to right as time passes, and always displays the position under examination in real time.

  As for the cycle time for moving the position of the graphical pointer, the accuracy of the indicated position is improved as it is finer. Actually, it is sufficient to set it every 1 to 20 seconds in consideration of the load on the computer related to the display and the pixel accuracy of the display screen.

  In this way, by displaying the graphical pointer 27 in the appearance development view 25, for example, when the operator finds a defect at a position 2540 m from the top position of the steel strip, the operator displays the 2540 m number displayed on the LED device or the like one by one. Defect information can be input at the position where the graphical pointer 27 is displayed without having to read. As a result, reading errors can be prevented and the input operation can be performed very simply.

  The entered defect information is immediately reflected on the screen and displayed. Some examples of defects displayed on the screen are shown in FIG. Here, “ear” or “roll wrinkle” indicated by 26a is an example of a continuous defect.

  Reference numeral 26b denotes a spot defect such as a “hole”. Symbols such as “SK” indicate the names of defects classified into about 600 types, and the numbers near the defects indicate the size and length of the defects. The numerical information of is displayed. The presence / absence of display on the screen and the display contents are appropriately switched by the operator.

  These displays are displayed as information input by the operator in the developed external view 25 displayed on the screen of the defect recording apparatus. The top (TOP) and end of the steel strip, the operator side (OP) and the drive side (DR), and the front and back sides are appropriately switched depending on the process.

  As described above, the operator can complete the input of defect information accurately only by performing a simple operation, and the load of inspection work is reduced. As a result, the operator can focus on the appearance inspection work itself, and the quality of the appearance inspection can be improved.

It is a schematic diagram which shows the mode of the input of the defect to the external appearance expanded view in this invention. It is a schematic diagram which shows the example of the defect displayed on an external appearance expanded view. It is a schematic diagram which shows an example of a test result input screen. It is a schematic diagram which shows the tin plating process which is an example to which this invention is applied.

Explanation of symbols

1 Tin plating process (ETL: Electrolytic Tinning Line)
2 Uncoiler 3 Electroplating tank 4 Appearance inspection process 5 Coiler
10 steel strip
11 Inspection input tablet
12 Operator
13 Display device
15 Computer system
20 Electronic pen
21 Inspection result input screen
22 Instruction information display
23 Screen control input
24 Inspection result input setting section
25 External view
26a Continuous defect
26b Spot defect
27 Graphical pointer

Claims (1)

In the information reference method of the steel strip appearance development view when the operator inputs and records the information of the defect found by the steel strip appearance inspection on the appearance development view displayed on the screen of the defect recording device,
Measuring the relative position in the longitudinal direction of the steel strip at the position where the appearance inspection of the steel strip is performed;
In the external development view, a step of displaying a graphical pointer at a relative position measured by the step of measuring,
Comprising
An information reference method for an appearance development view of a steel strip, characterized in that an operator can input defect information while referring to the display position of the graphical pointer.

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