JP2018031644A - Steel type determination system and steel type determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel type determination system that does not require a wide area for determining a steel type by both of a spark test and a fluorescent X-ray analysis and can precisely perform the spark test and the fluorescent X-ray analysis.SOLUTION: A steel type determination system 1 includes a fluorescent X-ray analyzer 6 that includes an irradiation part 6a and a light reception part 6b, applies X rays by the irradiation part 6a to a steel material SS to receive fluorescent X rays generated from the steel material SS to which X rays are applied by the light reception part 6b, and performs a fluorescent X-ray analysis for determining a type of the steel material SS based on the received fluorescent X rays; and a stage 8 for mounting the fluorescent X-ray analyzer 6. The stage 8 moves the fluorescent X-ray analyzer 6 so as to bring a grinding surface GS ground by a grinder grindstone 9 closer to an analyzable area MR for permitting a fluorescent X-ray analysis by the fluorescent X-ray analyzer 6 after performing a spark test to the steel material SS. The fluorescent X-ray analyzer 6 performs a fluorescent X-ray analysis after its movement.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a steel type determination system and a steel type determination method, and more particularly to a steel type determination system and a steel type determination method for performing a spark test and fluorescent X-ray analysis.

  Conventionally, a spark test for determining the material, that is, the composition of a steel material from the state of a spark generated when the steel material is rubbed has been performed. As a method for determining the material of a steel material from the state of sparks, an apparatus has been proposed in which a spark generated when the steel material is rubbed is imaged, and an image including the obtained spark is image-processed to determine the material of the steel material. .

  Furthermore, X-ray fluorescence analysis is performed to determine the steel type based on the wavelength and intensity of fluorescent X-rays generated from the steel materials irradiated with X-rays.

  Further, as disclosed in Japanese Patent Application Laid-Open No. 2013-228385, a technique of a steel type determination method is proposed in which both the spark test and the fluorescent X-ray analysis are performed to increase the steel type determination accuracy.

JP2013-228385A

  However, in the case of the technique disclosed in the above proposal, in order to perform the spark test and the fluorescent X-ray analysis, for example, after performing the spark test, the steel material is moved to the place where the fluorescent X-ray analysis is performed downstream of the conveyance path. It must be transported for X-ray fluorescence analysis. Therefore, the steel material must be transported from the place where the spark test is performed to the place where the fluorescent X-ray analysis is performed, and a wide area is required for the determination of the two steel types.

  The X-ray fluorescence analyzer performs X-ray fluorescence analysis by applying X-rays to a ground surface formed by grinding with a grinder in a spark test.

  However, because there are various sizes of steel materials, when the steel materials are transported to a place where X-ray fluorescence analysis is performed, the ground surfaces of the steel materials are not in an area where analysis is appropriate for the X-ray fluorescence analyzer. There is also a problem that a steel material positioning device or positioning control is required after the steel material is transported in order to accurately determine the steel type by positioning the steel material in the analysis possible region.

  Therefore, the present invention does not require a wide area for determining the steel type by both the spark test and the fluorescent X-ray analysis, and can also perform the spark test and the fluorescent X-ray analysis with high accuracy. It aims to provide a method.

  According to one aspect of the present invention, an imaging unit that captures a spark generated from the steel material by pressing a grinder grindstone against the steel material transported by a transport device that transports the steel material in a predetermined transport direction, and the imaging unit captures an image. A first steel type determining unit that determines the type of the steel material by recognizing the shape of the spark by image processing, and a spark test unit that performs a spark test for determining the type of the steel material, and X A fluorescent X-ray generated from the steel material irradiated with the X-rays by the fluorescent X-ray light receiving unit having an X-ray irradiation unit and a fluorescent X-ray light receiving unit. And after performing the spark test on the steel material, the grinder grindstone is used to perform the fluorescent X-ray analysis for determining the type of the steel material based on the received fluorescent X-ray. Ground A moving device that relatively moves at least one of the steel material and the fluorescent X-ray analysis unit so as to bring a cutting surface closer to an analysis possible region where the fluorescent X-ray analysis can be performed by the fluorescent X-ray analysis unit; And the fluorescent X-ray analysis unit provides a steel type determination system that performs the fluorescent X-ray analysis after at least one of the steel material moved by the moving device and the fluorescent X-ray analysis unit moves. it can.

  According to one aspect of the present invention, a spark generated from the steel material is imaged by an imaging unit by pressing a grinder grindstone against the steel material transported by a transport device that transports the steel material in a predetermined transport direction, and the captured sparks are captured. The type of the steel material is determined by recognizing the shape by image processing, and after performing the spark test on the steel material, the ground surface ground by the grinder grindstone, and the fluorescent X-ray by the fluorescent X-ray analysis unit At least one of the steel material and the fluorescent X-ray analysis unit is relatively moved so as to bring the analysis possible region close to each other, and at least one of the steel material and the fluorescent X-ray analysis unit moved by the moving device After one side moves, the fluorescent material is irradiated with X-rays from the X-ray irradiation unit by the fluorescent X-ray analysis unit having an X-ray irradiation unit and a fluorescent X-ray light receiving unit. Receiving fluorescent X-rays generated from the steel which the X-ray has been irradiated by the light receiving portion, it is possible to provide a determined steel type determination method the type of the steel material on the basis of the fluorescent X-rays received.

  According to the present invention, there is provided a steel type determination system that does not require a wide area for determining the steel type by both the spark test and the fluorescent X-ray analysis, and that can accurately perform the spark test and the fluorescent X-ray analysis. be able to.

It is a block diagram which shows the structure of the steel type determination system concerning the 1st Embodiment of this invention. It is a figure which shows arrangement | positioning of the various apparatuses which looked at the test | inspection place from the horizontal direction concerning the 1st Embodiment of this invention. It is a perspective view which shows the positional relationship of the fluorescent X-ray analyzer 6 on a stage and the grinding surface of steel materials SS concerning the 1st Embodiment of this invention. It is a flowchart which shows the example of the flow of operation | movement control of the steel type determination system concerning the 1st Embodiment of this invention. It is a top view of the inspection place when the spark test is performed according to the first embodiment of the present invention. It is a side view of the inspection place when the spark test is performed according to the first embodiment of the present invention. It is a top view of a test | inspection place when the fluorescent X ray analysis is performed concerning the 1st Embodiment of this invention. It is a block diagram which shows the structure of the steel type determination system concerning the 2nd Embodiment of this invention. It is a figure which shows arrangement | positioning of the various apparatuses which looked at the test | inspection place from the horizontal direction concerning the 2nd Embodiment of this invention. It is a perspective view which shows the positional relationship of the fluorescent X-ray analyzer 6 on a table and the grinding surface of steel materials SS concerning the 2nd Embodiment of this invention. It is a flowchart which shows the example of the flow of operation control of the steel kind determination system concerning embodiment of 2nd invention of this invention. It is a top view of the test | inspection place when the spark test is performed concerning embodiment of 2nd invention of this invention. It is a side view of the inspection place when the spark test is performed according to the embodiment of the second invention of the present invention. It is a side view of a test | inspection place when the fluorescent X ray analysis is performed concerning embodiment of 2nd invention of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
(overall structure)
FIG. 1 is a configuration diagram showing a configuration of a steel type determination system according to the present embodiment. In FIG. 1, the inspection place where steel materials are conveyed and steel material determination is performed is shown by the top view seen from the top. FIG. 2 is a diagram showing an arrangement of various apparatuses when the inspection place is viewed from the horizontal direction.

  The steel type determination system 1 includes a personal computer (hereinafter abbreviated as PC) 2, a transfer control device 3, an imaging device 4, an image processing device 5, a fluorescent X-ray analyzer 6, a table 7, and a stage 8. And a grinder grindstone (hereinafter referred to as a grinder) 9.

  The PC 2 includes a central processing unit (hereinafter referred to as a CPU), ROM, RAM, and the like, and performs control of the entire system, steel type determination processing, and management of determination result information. Programs and data for various processes are stored in a memory device 2a such as a ROM or a hard disk device, and the CPU reads out and executes various programs from the memory device 2a, thereby controlling the entire system, determining the steel type, and Management of judgment result information.

  The conveyance control device 3 controls driving of a plurality of conveyance rollers 10 arranged along the conveyance line. The some conveyance roller 10 comprises the conveyance conveyor which conveys steel material SS. The conveyance control device 3 outputs a drive signal or a stop signal to each conveyance roller 10 based on a conveyance control signal from the PC 2.

  Here, the steel material SS is a member having a columnar shape. The steel material SS is placed on the plurality of transport rollers 10 and is transported from the upstream side to the downstream side along the transport direction CD by the rotation of the transport rollers 10. Although not shown, a plurality of guide members for guiding the direction of the steel material SS are provided in the vicinity of the transport roller 10 so that the steel material SS is appropriately transported along the transport line.

  The imaging device 4 includes an imaging element such as a CCD, and images a spark generated from the steel material SS when the steel material SS to be inspected conveyed along the conveyance direction CD is worn by the rotating grinder 9. Arranged as possible. The imaging device 4 images the range indicated by the alternate long and short dash line, generates an imaging signal of a spark image including a plurality of streamlines, and outputs it to the image processing device 5. Therefore, the imaging device 4 constitutes an imaging unit that images the spark generated from the steel material SS by pressing the grinder 9 against the steel material SS transported by the transport device that transports the steel material SS in the predetermined transport direction CD.

  The image processing device 5 generates an image signal of a spark image based on the imaging signal from the imaging device 4 and outputs it to the PC 2. In the PC 2, an analysis program for analyzing the spark image and determining the steel type is stored in the memory device 2a. The PC 2 determines the steel type by recognizing the shape of the spark from the spark image using the analysis program. That is, the PC 2 configures a steel type determination unit that determines the type of the steel material SS by recognizing the shape of the spark imaged by the imaging device 4 by image processing. Therefore, the imaging device 4 and the PC 2 constitute a spark test unit that performs a spark test for determining the type of the steel material SS.

As shown in FIG. 1, the X-ray fluorescence analyzer 6 is disposed on the upstream side of the rotation shaft 9 a of the grinder 9 in the transport direction CD.
The X-ray fluorescence analyzer 6 includes an irradiation unit 6a that is an X-ray irradiation unit that emits X-rays, and a light receiving unit 6b that is a fluorescent X-ray light receiving unit that receives fluorescent X-rays. Works accordingly. The X-ray fluorescence analyzer 6 outputs the content data of various elements obtained by calculation from the X-ray fluorescence received by the light receiving unit 6b to the PC 2. The PC 2 determines the type of the steel material SS based on the received content data. That is, the fluorescent X-ray analyzer 6 includes an irradiation unit 6a and a light receiving unit 6b, and the fluorescence generated from the steel material SS irradiated with X-rays by the light receiving unit 6b by irradiating the steel material SS with X-rays from the irradiation unit 6a. A fluorescent X-ray analysis unit that receives X-rays and performs fluorescent X-ray analysis for determining the type of the steel material SS based on the received fluorescent X-rays is configured.

The imaging device 4 and the fluorescent X-ray analyzer 6 are mounted on the stage 8. Note that the imaging device 4 may be mounted on the table 7.
The table 7 is a plate-like member, and is supported and fixed on the floor 12 by a plurality of support members 7a. The table 7 is formed with an opening 7b through which the grinder 9 can protrude.

  A movable stage 8 is mounted on the table 7. The stage 8 is formed with an opening 8a through which the grinder 9 can project. The stage 8 can be moved in a horizontal direction HD orthogonal to the steel material conveyance direction CD by a stage driving device 8b. The stage driving device 8b has, for example, an air cylinder or a hydraulic cylinder, and moves the stage 8 between two positions by air pressure or hydraulic pressure.

  When the opening 8a of the stage 8 and the opening 7b of the table 7 are in the same position when viewed in the vertical direction from above, the upper end portion of the grinder 9 passes through the openings 7b and 8a and the stage 8 It is possible to project above the upper surface.

The grinder 9 has a cylindrical shape and is rotatable around a rotation axis 9a in a horizontal direction perpendicular to the conveyance direction CD.
Further, the grinder 9 can be rotated and moved up and down in the vertical direction VD by a grinder control device 9b installed and fixed on the floor 12.

Each transport roller 10 is supported by a transport roller support member 10a and is disposed so as to be rotatable about an axis parallel to the horizontal direction HD orthogonal to the transport direction CD.
The PC 2 is electrically connected to the transport control device 3, the image processing device 5, the fluorescent X-ray analyzer 6, the stage driving device 8b, and the grinder control device 9b. The PC 2 controls the operation of each device by transmitting a control signal to each device such as the transport control device 3.

Next, the positional relationship between the grinding surface of the steel SS to be ground by the grinder 9 and the analysis possible region of the fluorescent X-ray analyzer 6 will be described.
FIG. 3 is a perspective view showing the positional relationship between the fluorescent X-ray analyzer 6 on the stage 8 and the ground surface of the steel material SS. In FIG. 3, the imaging device 4 is not shown.

  When the stage 8 moves by a predetermined distance D in the horizontal direction HD, the fluorescent X-ray analyzer 6 moves with the movement of the stage 8. When the fluorescent X-ray analyzer 6 moves by a predetermined distance D, the ground surface GS formed by the grinder 9 of the steel material SS enters the analyzable region MR (indicated by a one-dot chain line) of the fluorescent X-ray analyzer 6. Further, the position and orientation of the fluorescent X-ray analyzer 6 on the stage 8 are set, and the fluorescent X-ray analyzer 6 is fixed with respect to the stage 8.

  That is, the fluorescent X-ray analyzer 6 is arranged so as to irradiate X-rays in the direction in which the grinder 9 is pressed against the steel material SS in order to grind the steel material SS during fluorescent X-ray analysis. Furthermore, the fluorescent X-ray analyzer 6 is slid and moved by the moving device so that the analyzable region MR approaches the grinding surface GS, and X-rays are emitted in the direction in which the grinder 9 is pressed against the steel material SS. .

  In FIG. 3, as indicated by a two-dot chain line, the grinder 9 rotates in a state of protruding from the opening 8 a of the stage 8, and the peripheral surface of the grinder 9 grinds a part of the steel material SS to be ground into the steel material SS. A surface GS (shown by diagonal lines) is formed.

  The rotating grinder 9 is pressed against the steel material SS during the spark test. When the spark test is completed, the grinder 9 is lowered toward the floor 12 by the grinder control device 9b. When the grinder 9 is lowered to a predetermined position, the stage 8 is moved by a predetermined distance D in the horizontal direction HD by the stage driving device 8b.

  When the stage 8 moves by a predetermined distance D, as described above, the grinding surface GS enters the analysis possible region MR of the fluorescent X-ray analyzer 6 that can correctly analyze the various elements to be analyzed. The X-ray fluorescence analyzer 6 is mounted on the stage 8 and fixed. The ground surface GS is not an oxidized surface but an oxidized surface obtained by cutting the surface of the steel material SS. Therefore, since the contents of the steel material SS whose surface to be conveyed is oxidized are exposed and the exposed surface is irradiated with X-rays, the determination accuracy of the fluorescent X-ray analysis is high.

The analyzable region MR is a spatial region defined by a predetermined depth, a predetermined width, and a predetermined height from the surface on which the irradiation unit 6a and the light receiving unit 6b of the fluorescent X-ray analyzer 6 are disposed.
(Operation)
Next, the operation of the steel type determination system 1 will be described.

FIG. 4 is a flowchart showing an example of the flow of operation control of the steel type determination system.
The PC 2 performs an initial position setting process for arranging the stage 8 and the grinder 9 at the initial position (step (hereinafter abbreviated as S) 1). In the initial position setting process, the PC 2 outputs a control signal to the stage driving device 8b so that the opening 8a of the stage 8 and the opening 7b of the table 7 are at the same position when viewed from the vertical direction. The position of the stage 8 is controlled. Further, the PC 2 outputs a control signal to the grinder control device 9 b to cause the grinder 9 to protrude from the opening 8 a of the stage 8.

  Next, the PC 2 controls the conveyance control device 3 to move the steel material SS to the vicinity of the table 7 that performs the spark test and the fluorescent X-ray analysis, and arranges the steel material SS at a predetermined position (S2). When the steel material SS detects that the tip of the steel material SS has come close to the table 7 by a sensor (not shown), the PC 2 causes the stopper member (not shown) to protrude on the transport line and stops the steel material SS.

  After S2, PC2 executes a spark test (S3). The PC 2 moves the stopper member from the conveying line, controls the grinder control device 9b to rotate the grinder 9 in a predetermined direction, and rotates the conveying roller 10 in the vicinity of the table 7 to remove the steel SS from the grinder 9. While pressing against the circumferential surface, the imaging device 4 images the spark of the steel material SS generated by the friction between the steel material SS and the grinder 9. The imaging signal of the imaging device 4 is input to the image processing device 5, and the image processing device 5 generates an image signal of a spark image and outputs it to the PC 2.

FIG. 5 is a plan view of an inspection place when a spark test is being performed. FIG. 6 is a side view of an inspection place when a spark test is being performed.
The PC 2 performs predetermined image processing on the input spark image, and determines the type of the steel material SS from the shape of the spark.

  After S3, the PC 2 moves the stage 8 (S4). Specifically, the PC 2 stops the rotation of the plurality of transport rollers 10 on the upstream side of the table 7 and outputs a control signal to the grinder control device 9b in accordance with the end of the spark test, thereby rotating the grinder 9. Also stop. Further, the PC 2 lowers the grinder 9 so as to pull out the grinder 9 from the opening 8 a of the stage 8. Thereafter, the PC 2 outputs a control signal to the stage driving device 8b, and moves the stage 8 by a predetermined distance D in the horizontal direction HD.

  In addition, after the spark test is finished, the rotation of the plurality of transport rollers 10 on the upstream side of the table 7 is stopped, but the steel material SS after the spark test is fixed, and at the next fluorescent X-ray analysis, In order to prevent the position of the grinding surface GS from shifting, a clamp mechanism for clamping the steel material SS or a pressing mechanism for pressing the steel material SS may be provided.

That is, the steel material SS may be fixed by a clamp mechanism or a pressing mechanism before the fluorescent X-ray analyzer 6 is moved after completion of the spark test.
As a result, the fluorescent X-ray analyzer 6 is arranged at the position shown in FIG. FIG. 7 is a plan view of an inspection place when fluorescent X-ray analysis is performed.

  Then, the PC 2 performs fluorescent X-ray analysis (S5). Since the grinding surface GS of the steel material SS is in the analysis possible region MR of the fluorescent X-ray analyzer 6, the fluorescent X-rays generated from the grinding surface GS of the steel material SS irradiated with the X-rays from the irradiation unit 6a are received by the light receiving unit. The light is received at 6b, and the fluorescent X-ray analyzer 6 can accurately determine the steel type.

  That is, the stage 8 and the stage driving device 8b perform the spark test on the steel material SS, and then the analysis area MR where the ground surface GS ground by the grinder 9 and the fluorescent X-ray analysis by the fluorescent X-ray analyzer 6 can be performed. A moving device is configured to move the fluorescent X-ray analyzer 6 so as to be close to each other. Then, after the fluorescent X-ray analyzer 6 moved by the stage 8 and the stage driving device 8b moves, the fluorescent X-ray analyzer 6 performs the fluorescent X-ray analysis, and the PC 2 determines the type of the steel material SS from the analysis result. Judgment is made.

  After S5, the PC 2 moves the stage 8 to the original position (S6). A control signal is output to the stage driving device 8b, and the stage 8 is moved back by a predetermined distance D in the horizontal direction HD to move the stage 8 to the original position.

After S6, the PC 2 transports the steel material SS for which the steel type determination has been completed along the transport direction CD (S7).
The processing of S1 to S7 is performed on one steel material SS, and the determination of the steel type of the steel material SS is accurately performed based on two determination results, that is, the determination result by the spark test and the determination result by the fluorescent X-ray analysis. Can be done.

When the steel material SS that requires the determination of the steel type is transported to the vicinity of the table 7 from the steel materials SS that are transported one after another, the above-described sequence processing from S1 to S7 is executed.
As described above, according to the above-described embodiment, a large area for steel type determination by both the spark test and the fluorescent X-ray analysis is not required, and the spark test and the fluorescent X-ray analysis are accurately performed. It is possible to realize a steel type determination system and a steel type determination method capable of performing the above.

  In particular, since the fluorescent X-ray analysis is performed at the place where the spark test is performed without moving the steel material SS after the spark test, the test and analysis are performed at one place. Not only can the size be reduced, but there is also an effect that the time for determining the steel type is shortened.

  In addition, when performing fluorescent X-ray analysis, X-rays must be correctly irradiated onto the ground surface ground during the spark test. In this embodiment, the fluorescent X-ray analyzer is applied to the steel material SS after the spark test. Therefore, the ground surface of the steel material SS can be accurately arranged in the analysis possible region of the fluorescent X-ray analyzer.

  In the above-described embodiment, the fluorescent X-ray analyzer slides and moves so as to approach the grinding surface after the spark test, but the grinding surface of the steel material approaches the analyzable region of the fluorescent X-ray analyzer. The steel material may be moved. For example, the steel material SS may be moved without causing the stage 8 to slide, so that the ground surface of the steel material approaches the analyzable region of the fluorescent X-ray analyzer.

That is, after the spark test is performed on the steel material SS, the ground surface GS ground by the grinder 9 and the analysis possible region MR in which the fluorescent X-ray analysis can be performed by the fluorescent X-ray analyzer 6 are brought close by the moving device. The at least one of the steel material SS and the fluorescent X-ray analyzer 6 is moved relatively, and the fluorescent X-ray analyzer 6 has at least one of the steel material SS and the fluorescent X-ray analyzer 6 moved by the moving device. After moving, fluorescent X-ray analysis is performed.
(Second Embodiment)
In the first embodiment, the steel material subjected to the spark test does not move, and the fluorescent X-ray analyzer slides and moves so that the ground surface enters an analyzable region where X-ray fluorescence analysis is possible. However, in the present embodiment, the steel material is moved and the fluorescent X-ray analyzer is moved closer to the grinding surface.
(Constitution)
Since the configuration of the steel type determination system according to the present embodiment is substantially the same as the configuration of the steel type determination system according to the first embodiment, the description of the same components is omitted using the same reference numerals, and different configurations are used. Only the elements are described.

  FIG. 8 is a configuration diagram showing the configuration of the steel type determination system according to the present embodiment. In FIG. 8, the inspection place where steel material is conveyed and steel material determination is performed is shown by the top view seen from the top. FIG. 9 is a diagram showing the arrangement of various devices when the inspection place is viewed from the horizontal direction.

  The steel type determination system 1A according to the present embodiment does not have the stage 8, and only the imaging device 4 is mounted on the table 7A. The table 7A has an opening 7Aa through which the grinder 9 protrudes.

  Further, as shown in FIG. 9, the fluorescent X-ray analyzer 6 is fixed to the front end portion, that is, the lower end portion of the analyzer lifting device 22 fixed to the ceiling 21, and can be moved up and down in the vertical direction VD. . The lifting operation of the analyzer lifting device 22 is controlled by the PC 2.

  The PC 2 receives, from the outside, for example, from the steel production line control system, the steel material type information IF conveyed to the table 7A for determining the steel type. In the memory device 2a of the PC 2, diameter data of the steel material SS corresponding to the type information IF is stored. Note that the type information IF may include diameter data of the steel material SS.

  A plurality of rotating devices 23 are disposed between the transport rollers 10 on the upstream side of the table 7A of the transport line of the steel material SS. Each rotation device 23 has a pair of rollers 24 and a motor (not shown), and each roller 24 has a columnar shape and is rotatable around the axis of the column. The distance between the two shafts of the pair of rollers 24 is a distance that allows the steel material SS to be supported by the pair of rollers 24 in a state where the shaft of the steel material SS is parallel to the two shafts of the pair of rollers 24. The rotating device 23 is arranged so that the rotating shaft of each roller 24 is parallel to the conveying direction CD of the steel material SS.

Each rotation device 23 can be moved up and down in the vertical direction by a roller lifting device 25. The raising / lowering operation of the roller raising / lowering device 25 is controlled by the PC 2.
When each rotating device 23 is raised by the roller lifting device 25, the side surface of the steel material SS is supported by the side surfaces of the pair of rollers 24.

FIG. 10 is a perspective view showing the positional relationship between the fluorescent X-ray analyzer 6 on the table 7A and the ground surface of the steel material SS.
The X-ray fluorescence analyzer 6 can be moved up and down in the vertical direction VD by the analyzer lifting device 22 and descends by a distance d1 determined according to the type of the steel material SS in order to perform the X-ray fluorescence analysis. When the fluorescent X-ray analyzer 6 is lowered by the distance d1, the ground surface GS enters the analyzable region MR of the fluorescent X-ray analyzer 6.

As will be described later, when the spark test is finished, the steel material SS is rotated about the axis by a predetermined angle θ1 so that the grinding surface GS faces the ceiling by the rotation of the roller 24. In FIG. 10, the grinding surface GS1 facing the ceiling direction is indicated by a dotted line.
(Operation)
Next, the operation of the steel type determination system 1A will be described.

FIG. 11 is a flowchart illustrating an example of a flow of operation control of the steel type determination system.
The PC 2 performs an initial position setting process for arranging the grinder 9 at the initial position (S11). In the initial position setting process, the PC 2 outputs a control signal to the grinder control device 9b to cause the grinder 9 to protrude from the opening 7Aa of the table 7A.

  Next, the PC 2 controls the transport control device 3 to move the steel material SS to the vicinity of the table 7A for performing the spark test and the fluorescent X-ray analysis, and arranges the steel material SS at a predetermined position (S12). Since the steel material SS is detected by a sensor (not shown), when it is detected that the front end of the steel material SS has come close to the table 7A, the PC 2 causes a stopper member (not shown) to protrude on the transport line, and the steel material SS is stop.

After S12, the PC 2 executes a spark test (S13). The PC 2 moves the stopper member from the conveyance line, controls the grinder control device 9b to rotate the grinder 9 in a predetermined direction, and rotates the conveyance roller 10 in the vicinity of the table 7A by the imaging device 4. The spark of the steel material SS generated by the friction between the steel material SS and the grinder 9 is imaged. The imaging signal of the imaging device 4 is input to the image processing device 5, and the image processing device 5 generates an image signal of a spark image and outputs it to the PC 2.
FIG. 12 is a plan view of an inspection place when a spark test is being performed. FIG. 13 is a side view of an inspection place when a spark test is being performed.

The PC 2 performs predetermined image processing on the input spark image, and determines the type of the steel material SS from the shape of the spark.
After S13, the PC 2 raises the rotation device 23 by a predetermined distance DD (S14). The predetermined distance DD is a distance until the side surfaces of the pair of rollers 24 come into contact with the side surfaces of the steel material SS.

  Further, after S14, the PC 2 rotates each roller 24 of the rotation device 23 by an angle θ2 corresponding to the type of the steel material SS (S15). As a result, here, when each roller 24 of the rotation device 23 rotates by a predetermined angle θ2 corresponding to the type of the steel material SS, the steel material SS rotates about the axis by a predetermined angle θ1, here 180 degrees. The grinding surface GS of the steel material SS is arranged toward the ceiling.

  After S15, the PC 2 lowers the fluorescent X-ray analyzer 6 by a predetermined distance d1 (S16). Since the distance d1 varies depending on the diameter of the steel material SS, the PC 2 calculates the distance d1 based on the steel material type information IF. The distance d1 is a distance that allows the grinding surface GS to enter the analysis possible region MR of the fluorescent X-ray analyzer 6.

  Therefore, the analyzer lifting device 22 performs the spark test on the steel material SS, and then the ground surface GS ground by the grinder 9 and the analysis possible region MR in which the fluorescent X-ray analysis by the fluorescent X-ray analyzer 6 is possible. A moving device for moving the fluorescent X-ray analyzer 6 is configured so as to be close to each other. Further, the plurality of rotating devices 23 also constitute a moving device for moving the steel material SS so as to move the grinding surface GS to the analysis possible region MR of the fluorescent X-ray analyzer 6, and the columnar steel material SS is rotated around the axis. In order to rotate by a predetermined angle θ1, the roller 24 is rotated by an amount of rotation of an angle θ2 corresponding to the diameter of the steel material SS. The amount of rotation is determined based on the type information of the steel material SS.

In addition, after arrange | positioning the grinding surface GS toward a ceiling, in order to fix steel material SS, you may provide the clamp mechanism which clamps steel material SS, or the press mechanism which presses steel material SS.
As a result, the fluorescent X-ray analyzer 6 is disposed at the position shown in FIG.

FIG. 14 is a side view of an inspection place when fluorescent X-ray analysis is performed.
Then, the PC 2 performs fluorescent X-ray analysis (S17). Since the grinding surface GS of the steel material SS is in the analysis possible region MR of the fluorescent X-ray analyzer 6, the fluorescent X-rays generated from the grinding surface GS of the steel material SS irradiated with the X-rays from the irradiation unit 6a are received by the light receiving unit. Based on the light received at 6b and the output data of the fluorescent X-ray analyzer 6, the PC 2 can accurately determine the steel type.

After S17, the PC 2 lowers the rotation device 23 by a predetermined distance DD and moves it to the original position (S18).
Further, the PC 2 raises the fluorescent X-ray analyzer 6 by the distance d1 and moves it to the original position (S19).

After S19, the PC 2 transports the steel material SS for which the steel type determination has been completed along the transport direction CD (S20).
As described above, according to the above-described embodiment, a large area for steel type determination by both the spark test and the fluorescent X-ray analysis is not required, and the spark test and the fluorescent X-ray analysis are accurately performed. It is possible to realize a steel type determination system and a steel type determination method capable of performing the above.

  Further, in the case of fluorescent X-ray analysis, the ground surface ground in the spark test must be correctly irradiated with X-rays, but in this embodiment, the steel material SS rotates around the axis after the spark test. Since the fluorescent X-ray analyzer moves so as to descend, the ground surface of the steel material SS can be accurately arranged in the analysis possible region of the fluorescent X-ray analyzer.

  In the above-described example, the rotation amount of each roller 24 is determined based on steel material information in which the diameter of the steel material SS is uniquely determined. However, an image obtained by imaging the steel material SS with an imaging device. The diameter of the steel material SS may be calculated based on the image data, and the rotation amount of each roller 24 may be determined based on the calculated diameter data. The imaging device is an image sensor such as a CCD, and the diameter of the steel material SS may be calculated by image analysis from image data obtained from the imaging signal, or the diameter of the steel material may be measured by a laser scanner or the like. .

  That is, the rotation amount of the steel material SS may be determined based on the diameter information measured for the steel material SS or the diameter information calculated from the image data of the steel material SS.

  As described above, according to the above-described embodiments, a large area for steel type determination by both the spark test and the fluorescent X-ray analysis is not required, and the spark test and the fluorescent X-ray analysis are accurately performed. A steel type determination system and a steel type determination method that can be realized.

  The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.

1, 1A Steel type determination system, 2a memory device, 3 transport control device, 4 imaging device, 5 image processing device, 6 fluorescent X-ray analyzer, 6a irradiation unit, 6b light receiving unit, 7, 7A table, 7Aa opening, 7a Support member, 7b opening, 8 stage, 8a opening, 8b stage drive device, 9 grinder grindstone, 9a rotating shaft, 9b grinder control device, 10 transport roller, 10a transport roller support member, 12 floor, 21 ceiling, 22 analysis Device lifting device, 23 rotating device, 24 roller, 25 roller lifting device.

Claims (10)

An image capturing unit that captures a spark generated from the steel by pressing a grinder grindstone against the steel transported by a transport device that transports the steel in a predetermined transport direction, and the shape of the spark captured by the image capturing unit by image processing. A first steel type determination unit that determines the type of the steel material by recognizing, and a spark test unit that performs a spark test for determining the type of the steel material;
Fluorescence X generated from the steel material having an X-ray irradiation part and a fluorescent X-ray light receiving part, irradiating the steel material with X-rays from the X-ray irradiation part and irradiating the X-ray with the fluorescent X-ray light receiving part A fluorescent X-ray analysis unit that receives a line and performs a fluorescent X-ray analysis to determine the type of the steel material based on the received fluorescent X-ray;
After performing the spark test on the steel material, the steel material and the steel material so as to bring the ground surface ground by the grinder grindstone closer to the analysis possible region where the fluorescent X-ray analysis can be performed by the fluorescent X-ray analysis unit A moving device that relatively moves at least one of the fluorescent X-ray analysis units;
Have
The fluorescent X-ray analysis unit performs the fluorescent X-ray analysis after at least one of the steel material moved by the moving device and the fluorescent X-ray analysis unit moves.
Steel grade determination system characterized by this.   The fluorescent X-ray analysis unit is arranged to irradiate the X-ray in a direction in which the grinder grindstone is pressed against the steel material in order to grind the steel material at the time of fluorescent X-ray analysis. The steel type determination system according to claim 1, characterized in that it is characterized in that:   The moving device slides and moves the fluorescent X-ray analysis unit so as to bring the analyzable region closer to the grinding surface, and irradiates the X-ray in the pressed direction. The steel type determination system according to claim 2.   The steel type determination system according to claim 1, wherein the moving device moves the steel material so that the ground surface is moved to the analysis possible region of the fluorescent X-ray analysis unit.   The steel type determination system according to claim 4, wherein the moving device rotates the columnar steel material about an axis.   The steel type determination system according to claim 5, wherein the steel material rotation amount is determined based on type information of the steel material.   6. The steel type determination system according to claim 5, wherein the rotation amount is determined based on diameter information measured for the steel material or diameter information calculated from image data of the steel material.   6. The steel type determination according to claim 1, wherein the fluorescent X-ray analyzer is disposed upstream of a rotation shaft of the grinder grindstone in the predetermined transport direction. system. Imaging a spark generated from the steel material by pressing a grinder grindstone against the steel material conveyed by a conveyance device that conveys the steel material in a predetermined conveyance direction,
The type of the steel material is determined by recognizing the captured spark shape by image processing,
After performing the spark test on the steel material, the steel material and the steel material so as to bring the ground surface ground by the grinder grindstone closer to the analysis possible region where the fluorescent X-ray analysis can be performed by the fluorescent X-ray analysis unit Relatively moving at least one of the X-ray fluorescence analyzers,
After at least one of the steel material moved by the moving device and the fluorescent X-ray analysis unit is moved, the X-ray irradiation unit and the fluorescent X-ray analysis unit having the fluorescent X-ray light receiving unit perform X by the X-ray irradiation unit. Irradiating the steel material with a wire and receiving the fluorescent X-ray generated from the steel material irradiated with the X-ray by the fluorescent X-ray receiving unit;
A steel type determination method, wherein the type of the steel material is determined based on the received fluorescent X-ray.   10. The steel type determination method according to claim 9, wherein after the spark test is finished, the steel material is fixed before the steel material and at least one of the fluorescent X-ray analysis units are relatively moved.

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