JP2016024769A - Management method of steel material and management system of steel material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage a plurality of steel materials produced while being cut into a predetermined length.SOLUTION: Mapped data D in which cut surface data showing the aspect of each of the cut surfaces F of a plurality of steel materials W and product data of each of the steel materials W are mapped is stored in a database 7. In order to identify one steel material W, cut surface data showing the aspect of the cut surface F of the one steel material W is obtained. The obtained cut surface data and mapped data D stored in the database 7 are verified. As a result of the verification, product data included in the mapped data D corresponding to the obtained cut surface data is extracted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method and a management system for managing a plurality of steel materials produced by cutting to a predetermined length.

  For example, in each process such as steel making, rolling, cutting, and inspection in a steelworks, billet, shape steel, or bar steel (hereinafter referred to as steel material) is formed and inspected. In each process, each steel material is identified. Need to manage.

  As a conventional management method, there are a method of marking or marking the end face of each steel material produced by cutting to a predetermined length, and a method of attaching a print label or tying it with a wire. Symbols indicated by markings and markings and symbols printed on labels are set to indicate specifications such as the charge number and shape (size) of the steel material. Therefore, in each process, the administrator can recognize the specifications such as the charge number and shape (size) of the steel material by reading the marking, marking characters, or printed label for each steel material. Product management is done.

  As described above, for example, Patent Document 1 discloses a technique for performing product management by printing on an end surface of a steel material and reading the printed material. Patent Document 1 discloses a technique for accurately reading a print provided on an end of a steel material.

JP-A-11-120286

However, when product management is performed by marking the end face of steel material that has been cut and marked with markings or markings, the number of symbols is limited, especially if the end face is narrow, such as a steel bar with a small diameter. Limited. In this case, a device for marking and marking is separately required.
When a printed label is used for product management, the printed label may be peeled off during the conveyance of the steel material, which is not reliable. In this case, when the steel material is processed, it is necessary to remove and reattach the print label, which complicates the work. In addition, a separate device is required.

  Then, an object of this invention is to provide the method and management system which become possible [managing steel materials using a new technical means].

  The present invention is a method for managing a plurality of steel materials produced by being cut to a predetermined length, and includes cutting surface data indicating a cutting surface mode of each of the plurality of steel materials and product data of each of the steel materials. Corresponding correspondence data is stored in a storage device, and in order to identify one steel material, the cutting surface data indicating the aspect of the cutting surface of the one steel material is acquired, and the acquired cutting surface data and The corresponding data stored in the storage device is collated, and as a result of the collation, the product data included in the corresponding data corresponding to the acquired cut surface data is extracted.

The present invention was made by paying attention to the fact that each cut surface of the steel material produced by cutting has a unique characteristic. In the present invention, each of a plurality of steel materials produced by being cut. Corresponding data in which cutting plane data indicating the mode of the cutting plane is associated with product data of each of the plurality of steel materials is stored in the storage device.
And in order to identify one steel material in a plurality of steel materials, the cutting surface data which shows the mode of the cutting surface of this one steel material is acquired, the acquired cutting surface data is collated with the above-mentioned correspondence data, and acquisition Product data corresponding to the cut surface data is extracted. Thereby, this one steel material can be identified and management of several steel materials is attained.

  In addition, although the pattern of a cut surface may be sufficient as the aspect of the said cut surface, it is preferable that the aspect of the said cut surface is the uneven | corrugated shape of the said cut surface. Each cut surface of the steel material produced by cutting has a unique characteristic with respect to the concavo-convex shape. Then, each steel material can be identified using the cut surface data which shows the uneven | corrugated shape of a cut surface.

  Moreover, it is preferable to acquire the said cut surface data which shows an uneven | corrugated shape by measuring the cut surface of the said steel material with a displacement meter. With this configuration, accurate cut surface data can be acquired.

  The steel material is preferably produced by shear cutting. When a steel material having a predetermined length is produced by shear cutting, a characteristic peculiar to shearing is generated on the cut surface, and the unique characteristic is easily clarified, so that the identification accuracy of each steel material can be increased.

  Further, the present invention is a management system for managing a plurality of steel materials produced by being cut to a predetermined length, each of the steel materials showing a cutting surface data indicating a mode of a cutting surface of each of the plurality of steel materials. A storage device that stores the correspondence data associated with the product data, and a processing device that can refer to the correspondence data, and the processing device identifies the one steel material in order to identify the one steel material. The acquisition part which acquires the cut surface data which shows the aspect of the cut surface of steel materials, the cut surface data which the acquisition part acquired, and the corresponding data memorized by the storage device, and the acquired cut An extraction unit that extracts the product data included in the correspondence data corresponding to surface data.

The present invention was made by paying attention to the fact that each cut surface of the steel material produced by cutting has a unique characteristic. In the present invention, each of a plurality of steel materials produced by being cut. Corresponding data in which cutting plane data indicating the mode of the cutting plane is associated with product data of each of the plurality of steel materials is stored in the storage device.
And in order to identify one steel material in a plurality of steel materials, a processing device acquires the cut surface data which shows the mode of the cut surface of this one steel material, and acquires the acquired cut surface data and the above-mentioned correspondence data. Collate and extract product data corresponding to the acquired cut surface data. Thereby, this one steel material can be identified and management of several steel materials is attained.

  According to the present invention, it is possible to identify each steel material by using cut surface data indicating the aspect of the cut surface of the steel material, and it is possible to manage a plurality of steel materials.

It is a schematic block diagram which shows one Embodiment of a management system. It is explanatory drawing of the corresponding data accumulate | stored in the database. It is explanatory drawing of a displacement meter and steel materials. It is explanatory drawing which made steel material a steel bar (round bar), and mapped cut surface data. It is explanatory drawing which made steel material a square billet and mapped cut surface data. It is explanatory drawing which expressed steel surface as a contour line when steel materials are steel bars (round bar). It is explanatory drawing which represented steel surface as a square billet and cut surface data as a contour line.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
For example, in each process such as steel making, rolling, cutting, and inspection in an ironworks, billet, shape steel, or bar steel (hereinafter referred to as steel material) is formed and inspected. There is a need to do. Therefore, the produced steel material is managed using a management system described below.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a management system. The management system includes a database 7, a server 8, a network 9, and a plurality of terminal devices 10. The steel material W to be managed by this management system is produced by being cut into a predetermined length. The steel material W is a billet or a shape steel or a bar steel formed from the billet. In the present embodiment, the steel material W having a predetermined length is produced by shear cutting (shear cutting) with a cutting device.

  The database 7 includes a storage device and stores correspondence data D. As shown in FIG. 2, the correspondence data D is obtained by associating the cut surface data d <b> 1 indicating the mode (expression) of each cut surface of the plurality of steel materials W with the product data d <b> 2 of each of the plurality of steel materials W. Information. In FIG. 2, for easy understanding, the cut surface data d1 is shown as an illustration, but the actual cut surface data d1 is digitized. The correspondence data D will be described later.

  As shown in FIG. 1, the server 8 includes a computer device connected to a database 7. The database 7 may be incorporated in this computer device. The server 8 can acquire the corresponding data D in the database 7 and can transmit the corresponding data D to each terminal device 10 through the network 9. Further, the server 8 can acquire the information (corresponding data D) acquired by the terminal device 10 through the network 9 and has a function of newly storing the acquired information (corresponding data D) in the database 7. Yes.

  The network 9 is a computer network, and in this embodiment, is a local area network provided in the ironworks.

  The terminal device 10 is installed for each process (for each factory building) such as steel making, rolling, cutting, and inspection, and the management system of the present embodiment includes four terminal devices 10. The number of terminal devices 10 can be changed according to the number of processes.

Each terminal device 10 includes a computer device connected to the network 9. In the present embodiment, each terminal device 10 can acquire and refer to the correspondence data D stored in the database 7, and executes processing for identifying each steel material W using the correspondence data D. Functions as a processing device. For this purpose, the terminal device 10 stores a computer program for causing the computer device to function as an acquisition unit 11 and an extraction unit 12 described later.
Alternatively, the terminal device 10 may function as a relay device, and the server 8 may be configured to function as a processing device that can refer to the correspondence data D and includes the acquisition unit 11 and the extraction unit 12.

  Each terminal device 10 includes a measurement unit. The measurement unit of the present embodiment is a displacement meter 15, particularly a non-contact displacement meter (laser displacement meter) 15. FIG. 3 is an explanatory diagram of the displacement meter 15 and the steel material W. The displacement meter 15 measures the unevenness of the end surface of the steel material W to be managed. As described above, since the steel material W is produced by being cut to a predetermined length, the end surface to be measured becomes the cut surface F. The displacement meter 15 measures the uneven shape of the cut surface F by scanning along the cut surface F. Thus, by measuring the cut surface F of the steel material W with the displacement meter 15, the cut surface data d1 indicating the concavo-convex shape can be obtained with high accuracy.

A method for managing a plurality of steel materials W produced by cutting into a predetermined length, which is performed by the management system configured as described above, will be described.
[Generation of corresponding data D]
For example, when a steel material (round bar) W is produced by being rolled by a billet rolling mill and cut to a predetermined length, first, correspondence data D of the steel material W is acquired. For example, the correspondence data D is acquired using the terminal device 10 shown at the leftmost in FIG. Hereinafter, the acquisition process of the correspondence data D will be described.

  The product data d2 of the steel material W rolled and cut to a predetermined length is transmitted from the billet rolling machine 3 (see FIG. 3) and the cutting device 4 to the terminal device 10, and the terminal device 10 transmits the product data d2 to the terminal device 10. get. The product data d2 can include at least one (specification) of data regarding the charge number, shape (size), component, material, production date, and lot number of the steel material W.

Further, the displacement meter 15 of the terminal device 10 shown in FIG. 3 measures the unevenness of the cut surface F of the steel material W. Here, the displacement meter 15 measures unevenness on the entire cutting surface F. The displacement meter 15 can acquire the uneven shape of the cut surface F by measuring the distance of each part of the cut surface F with respect to the reference plane (reference).
More specifically, the distance from the reference plane (reference) for each of a large number of unit regions obtained by dividing the cut surface F is measured. Then, the acquisition unit 11 performs a process of associating the measured distance from the reference plane (reference) in the unit area with the position (plane coordinate) of the unit area on the cutting plane F, and performs this process on all the unit areas. Do about. Thereby, the acquisition part 11 can produce | generate the cut surface data d1 which shows the uneven | corrugated shape of the cut surface F of the steel material W, and acquired from the cut surface data d1 of the steel material W and the said steel piece rolling mill 3 Correspondence data D is generated in association with product data d2. That is, the correspondence data D is information in which “uneven shape of the cut surface F” and “specification” for each steel material W are associated with each other.

  Here, the cut surface F of the steel material W produced by being sheared by the cutting device 4 has its own characteristics, and it is natural that the steel material W has different sizes (different cross-sectional shapes). Even if the steel materials W have the same size (the same cross-sectional shape), the uneven shapes of the cut surfaces F are slightly different from each other. Therefore, even if the product data d2 is the same, the cut surface data d1 is different, and as a result, there is no two corresponding data D.

  In this way, correspondence data D is obtained for all of the produced steel materials W, and the obtained correspondence data D is transmitted to the server 8 through the network 9 shown in FIG. 1 and further stored in the database 7. . A specific example of the cut surface data d1 included in the correspondence data D will be described later.

  As described above, the database 7 stores the correspondence data D in which the cut surface data d1 indicating the aspect of the cut surface F of each of the plurality of steel materials W and the product data d2 of each of the steel materials W are associated with each other. In the present embodiment, the aspect of the cut surface F is an uneven shape of the cut surface F.

[Identification management of steel material W]
The steel material W from which the correspondence data D has been acquired is sequentially transported to the factory building where each process such as inspection is performed. Therefore, each of the terminal devices 10 (in the case of FIG. 1, other than the terminal device 10 shown on the leftmost side) installed in each process (in each factory building), in order to identify each steel material W, the following processing I do.

In order to identify one steel material W, the acquisition unit 11 of the terminal device 10 acquires cut surface data d1 indicating the uneven shape of the cut surface F of the one steel material W.
The process for this acquisition is the same as the process performed for acquiring the correspondence data D, and the displacement plane 15 has a reference plane (reference) for each of a large number of unit areas obtained by dividing the cut surface F. Measure the distance from. Here, the unit area is an area partitioned in the same manner as the unit area partitioned for obtaining the correspondence data D. And the acquisition part 11 performs the process which matches the distance from the reference plane (reference | standard) in the measured unit area | region, and the position (plane coordinate) in the cut surface F of the said unit area | region, This process is performed about all the unit areas. Do. Thereby, the acquisition part 11 can acquire the cut surface data d1 which shows the uneven | corrugated shape of the cut surface F of the said one steel material W. As shown in FIG.

Next, in order to identify the one steel material W, the extraction unit 12 of the terminal device 10 includes the cut surface data d1 acquired by the acquisition unit 11 and a plurality of correspondence data D already stored in the database 7. As a result of this collation, product data d2 included in the corresponding data D corresponding to the acquired cut surface data d1 is extracted.
This process will be specifically described. As described above, correspondence data D is acquired for the produced one steel material W, and the correspondence data D is stored in the database 7. Moreover, since the cut surface F of the steel material W produced by shear cutting has unique characteristics, there is no two of the same correspondence data D stored in the database 7. Therefore, the cut surface data d1 acquired by the acquisition unit 11 is collated with the cut surface data d1 included in each corresponding data D in the database 7. As a result, among the plurality of correspondence data D, there is data that matches the cut surface data d1 acquired for one steel material W, and product data d2 associated with the matching cut surface data d1 is present. Extracted. That is, the extracted product data d2 is the product data d2 of the one steel material W.

  Thus, in each process, each steel material W can be identified using the terminal device 10, and as a result, management of a plurality of steel materials W becomes possible.

As mentioned above, according to the management system of this embodiment and the management method which this management system performs, the cutting plane data d1 which shows the concavo-convex shape of cutting plane F of each of the plurality of steel materials W produced by shear cutting, and these plural Correspondence data D in which product data d2 of each steel material W is associated is stored in the database 7.
And the terminal device 10 acquires the cut surface data d1 which shows the uneven | corrugated shape of the cut surface F of this one steel material W, in order to identify one steel material W in the some steel material W, and acquired the cut surface The data d1 and the corresponding data D are collated, and product data d2 corresponding to the acquired cut surface data d1 is extracted. That is, since the uneven shape of the cut surface F of the steel material W is different one by one even if it is the same size, the terminal device 10 recognizes and discriminates this difference, thereby identifying each steel material W, As a result, a plurality of steel materials W can be managed.

In addition, since the cut surface F of the steel material W produced by shear cutting has its own characteristics as described above, in order to identify each of the steel materials W, as a mode of the cut surface F, the cut surface F is cut. The pattern of the surface F may be photographed with a camera or the like and managed based on this pattern. However, when managing based on the pattern of the cut surface F, the identification result (acquired image by the camera) may differ depending on how the light strikes the cut surface F, and the pattern is likely to change over time.
Therefore, in this embodiment, an uneven shape is acquired as an aspect of the cut surface F, and management is performed based on the uneven shape. Thereby, there is no influence of how the light strikes the cut surface F with respect to the identification result, and the uneven shape is less likely to change over time as compared with the pattern, so that the identification accuracy can be maintained high.

Moreover, in this embodiment, the steel material W used as the management object is produced by shear cutting. As described above, in the case of the steel material W that is shear-cut and produced to a predetermined length, a characteristic peculiar to shearing is generated on the cut surface F, and the peculiar characteristic is easily clarified. For this reason, it becomes possible to make the identification accuracy of each steel material W high.
In particular, in the case of shear cutting, the cut surface F includes a shear surface and a fracture surface. Since unique characteristics are likely to occur on the fracture surface, it is preferable that the displacement meter 15 measures the concavo-convex shape at least in the region that becomes the fracture surface.
In addition, although the said embodiment demonstrated the case where the steel material W was produced by shear cutting, a cutting means may be gas cutting and plasma cutting, and the cut surface F has a characteristic (individuality) unique. The case where it cut | disconnects by such a cutting method may be sufficient.

[Specific example of cut surface data d1]
4 to 7 are illustrations of the cut surface data d1 illustrated (imaged).
FIG. 4 is an explanatory diagram in which the steel material W is a steel bar (round bar) and the cut surface data d1 is mapped. FIG. 5 is an explanatory diagram in which the steel material W is a square billet and the cut surface data d1 is mapped. FIG. 6 is an explanatory diagram in which the steel material W is a steel bar (round bar) and the cut surface data d1 is expressed as contour lines. FIG. 7 is an explanatory diagram in which the steel material W is a square billet and the cut surface data d1 is expressed as contour lines.

  As described above, the terminal device 10 (acquisition unit 11) measures the distance from the reference plane (reference) for each of a large number of unit areas obtained by dividing the cut surface F, and the reference plane ( A process of associating the distance from the reference) with the position (plane coordinates) of the unit area on the cutting plane F is performed, and this process is performed for all the unit areas.

  For this reason, a specific (for example, the lowest) unit region in the cut surface F is used as a reference, and unit regions that are at the same height (same height range) with respect to this reference are given the same color. The uneven shape of the cut surface F can be mapped. In FIGS. 4 and 5, the high region K1 is indicated by a single hatch, the low region K3 is indicated by a cross hatch, and the intermediate region K2 is indicated by no hatching with respect to the reference. For example, the region K2 may be mapped as the reference.

  Alternatively, as shown in FIGS. 6 and 7, a specific (for example, the lowest) unit region in the cut surface F is used as a reference, and unit regions that are at the same height (same height range) with respect to this reference. Are connected by curves L1 and L2, and the uneven shape of the cut surface F can be expressed by contour lines (curves L1 and L2).

  In this way, the acquisition unit 11 can generate cut surface data d1 indicating the uneven shape of the cut surface F of each steel material W. The unit area may be, for example, an area of 1 square millimeter unit, and an average value of the height of the area is used.

In addition, the management system and management method of the present invention are not limited to the illustrated forms, and may be other forms within the scope of the present invention.
In order to identify each steel material W, it may be managed based on the pattern of the cut surface F as an aspect of the cut surface F. In this case, the pattern of the cut surface F is used as a measurement unit instead of the displacement meter 15. A camera (CCD camera) is used.
Further, the steel material W may be a hot member.

  Moreover, in the said embodiment, each process is performed in each building of the some factory which exists in one steelworks (one site), and the acquisition process of the cut surface data d1 by the said acquisition part 11 in each process, and Although the case where extraction processing by the extraction unit 12 is performed has been described, the steel material W may be managed by using the management method even outside the steel works (outside the one site). In this case, the network 9 shown in FIG. 1 is a wider-area computer network (for example, the Internet), and a terminal device 10 outside the steel mill is connected via this computer network. Perform the extraction process. In this case, the same management can be performed in the process after the steel material W is shipped from the steelworks.

7: Database (storage device) 8: Server 9: Network 10: Terminal device (processing device) 11: Acquisition unit 12: Extraction unit 15: Displacement meter (measurement unit) D: Corresponding data d1: Cut surface data d2: Product data W: Steel material F: Cut surface

Claims (5)

A method for managing a plurality of steel materials produced by cutting to a predetermined length,
Correspondence data in which cut surface data indicating the aspect of the cut surface of each of the plurality of steel materials and product data of each of the steel materials are associated is stored in the storage device,
In order to identify one steel material,
Obtain cutting surface data indicating the aspect of the cutting surface of the one steel material,
The acquired cut surface data and the corresponding data stored in the storage device are collated, and as a result of the collation, the product data included in the corresponding data corresponding to the acquired cut surface data is extracted. A method for managing a steel material.   The steel material management method according to claim 1, wherein an aspect of the cut surface is an uneven shape of the cut surface.   The steel material management method according to claim 2, wherein the cut surface data indicating the concavo-convex shape is acquired by measuring a cut surface of the steel material with a displacement meter.   The steel material management method according to any one of claims 1 to 3, wherein the steel material is produced by shear cutting. A management system for managing a plurality of steel materials produced by cutting to a predetermined length,
A storage device that stores correspondence data in which cut surface data indicating the aspect of the cut surface of each of the plurality of steel materials and product data of each of the steel materials are associated with each other;
A processing device capable of referring to the correspondence data,
The processor is
In order to identify one steel material, an acquisition unit that acquires cut surface data indicating the aspect of the cut surface of the one steel material;
Extraction that extracts the product data included in the correspondence data corresponding to the acquired cut surface data by collating the cut surface data acquired by the acquisition unit with the corresponding data stored in the storage device And
A steel material management system characterized by comprising:

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