Round bar inspection device

Abstract

To provide a round bar inspection device capable of inspecting a metal round bar while removing foreign matter and liquids, by omitting the process of removing rust-preventive oil before inspection. [Solution] A round bar inspection device that inspects the surface condition of a metal round bar by inspecting it with a camera, the round bar inspection device has a camera mounting base on which the camera is mounted, a foreign matter removal section for removing foreign matter from the surface of the round bar, and a wiping section for wiping liquid from the surface of the round bar, and is equipped with a photographing unit that allows the camera to slide in the lengthwise direction of the round bar.

Description

[Technical Field]

[0001] The present invention relates to a round bar inspection device for inspecting the surface of a metal round bar. [Background technology]

[0002] According to conventional technology, hot-worked metal round bars are inspected for processing marks, dents and scratches that occur during transportation, rust, and cutting chips by photographing them with a camera (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-159865 Summary of the Invention [Problem to be solved by the invention]

[0004] Normally, the surface of a metal round bar is coated with anti-rust oil to maintain a good surface condition, including rust prevention, etc. However, in order to inspect the surface of a round bar using a camera, there is a problem in that it is necessary to remove the oil from the surface of the round bar, place the round bar in the inspection device, and then apply anti-rust oil again after the inspection is completed, which is a long process. The inventors developed a round bar inspection device that can inspect metal round bars while removing foreign matter and liquids in order to eliminate the prior process of removing rust-preventive oil, and arrived at the present invention. [Means for solving the problem]

[0005] That is, the present invention includes the following. [1] A round bar inspection device that inspects the surface condition of a metal round bar using a camera, a camera mounting structure for mounting the camera; a foreign matter removal unit for removing foreign matter from the surface of the round bar; A round bar inspection device having a wiping section that wipes liquid from the surface of the round bar and a photographing unit that is slidable in the length direction of the round bar. [2] Further provided is a support part that supports the round bar while rotating it in the circumferential direction, The foreign matter removal unit and the wiping unit are arranged so that the surface of the rotating round bar is photographed immediately after it comes into contact with the foreign matter removal unit and the wiping unit. [3] The round bar inspection device described in [1], wherein the camera mounting structure includes an extension portion configured so as not to obstruct photography, and the foreign matter removal portion and the wiping portion are attached to the extension portion. [4] The round bar inspection device according to any one of [1] to [3], which is equipped with a plurality of photographing units. [Effects of the Invention]

[0006] The round bar inspection device of the present invention can simultaneously remove foreign matter from the surface being photographed and remove liquid components such as rust-preventive oil and water. This eliminates the need to remove foreign matter and liquid components before inspection and then reapply rust-preventive oil after inspection, contributing to process simplification. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an overall view of a round bar inspection device 1. [Figure 2] FIG. 2 is a perspective view of the photographing unit U. FIG. [Figure 3] FIG. 3 is a view of the photographing unit U as seen from the longitudinal direction of the round bar 2. As shown in FIG. [Figure 4A] FIG. 4A is a diagram showing the round bar 2 placed in the round bar placement section 9 for inspection. [Figure 4B] 4B is a diagram showing the round bar 2 being supported by the support part 5 for inspection. For ease of understanding, the support part 5 is shown in cross section. On the paper, a vertical arrow indicates the ascending direction of the support part 5. [Figure 4C]4C is a diagram showing that the rotation of the support roller 51 causes the rotation of the round bar 2. The arrows indicate the rotation directions of the round bar 2, the support roller 51, and the rotation roller 52. DETAILED DESCRIPTION OF THE INVENTION

[0008] The following describes an embodiment of the present invention. As long as it does not deviate from the spirit of the invention, designs or modifications based on conventional technology are also included in the present invention.

[0009] [Round bar inspection device] 1 shows a round bar inspection device 1 of the present invention. The round bar inspection device 1 has a plurality of photographing units U each having a camera 4 arranged to face a metal round bar 2. During photography, the round bar 2 is supported by a support part 5. As shown in Fig. 4C, the support part 5 is equipped with two support rollers 51, and is configured so that the round bar 2, which is arranged in contact with the support rollers 51, rotates as the support rollers 51 rotate in the circumferential direction. The round bar inspection device 1 of the present invention can inspect the surface of the round bar 2 by using the camera 4 while the round bar 2 rotates in the circumferential direction in this way. Furthermore, the photographing unit U including the camera 4 can slide in the longitudinal direction of the round bar 2 (as shown by the arrow in Figure 1), so inspection is possible in the sliding area, and since the round bar 2 rotates in the circumferential direction, inspection is possible over the entire circumferential direction of the round bar 2. The target metal round bar 2 includes round bars made of general metal materials such as non-ferrous metal materials in addition to steel materials.

[0010] [Photography unit] The photographing unit U will be described with reference to FIGS. The photographing unit U includes a camera 4, a camera mounting structure 3 on which the camera 4 is mounted, and a light 6 for illuminating the photographing location. The camera mounting structure 3 includes a camera mounting base 31 and a U-shaped extension 32 attached to the camera mounting base 31.

[0011] The camera mounting base 31 of the camera mounting structure 3 is made of a plate-like member, on which the camera 4 is mounted, and the camera 4 can be slid in the length direction of the round bar 2. In other words, the shooting position of the camera 4 can be changed by sliding the camera mounting base 31.

[0012] An illumination device 6 is disposed directly below the camera mount 31. As shown in FIGS. 4A, 4B, and 4C, the illumination device 6 irradiates the round bar 2 with light from diagonally above.

[0013] The camera mounting structure 3 has an extension 32 connected to the camera mounting base 31. The extension 32 is made up of multiple plate-like members and has a U-shape. Two ends of the U-shape are connected to the camera mounting base 31, and as shown in FIG. 2, the camera is configured to be able to take pictures inside the U-shape.

[0014] The extension section 32 includes a foreign substance removal section 7 and a wiping section 8 in a strip shape (linear shape) along the longitudinal direction of the round bar 2. The foreign matter removal section 7 is made of urethane foam. By using urethane foam as the material, it is possible to remove very small foreign matter such as dust and dirt, and very small foreign matter can be trapped inside the urethane foam. The foreign matter removal section 7 may be configured such that the urethane foam is directly attached to the extension section 32, or the extension section 32 may be provided with a foreign matter removal holding section 71 for holding the urethane foam, in which the urethane foam is disposed. As shown in FIGS. 4B and 4C, the foreign substance removal unit 7 is disposed so as to contact the round bar 2 diagonally above the round bar 2 (diagonally above the opposite side of the light source 6) when the round bar 2 is in the imaging position.

[0015] The wiping portion 8 is provided in the extension portion 32 and is made of a strip-shaped (linear) rubber that runs along the longitudinal direction of the round bar 2. By using rubber as the material, it becomes possible to wipe away liquids such as oil and water from the surface of the round bar 2, and photograph a clean surface. Due to its shape, the wiping portion 8 may be made of the strip-shaped rubber part of a windshield wiper on an automobile, for example. The wipe unit 8 may have the rubber directly attached to the extension unit 32, or the wipe holder 81 that holds the rubber may be provided on the extension unit 32, and the rubber may be disposed so as to fit within it. As shown in Figures 4B and 4C, when the round bar 2 is in the shooting position, the wiping unit 8 is positioned so as to be in contact with the round bar 2 diagonally above the round bar 2 (diagonally above the opposite side of the light 6), and can be positioned adjacent to the foreign matter removal unit 7.

[0016] [Support part] The round bar inspection device 1 includes a support unit 5 that supports the round bar 2 while rotating it in the circumferential direction. The support unit 5 will be described with reference to Figs. 4A to 4C. As shown in Fig. 4A, in preparation for inspection, the round bar 2 is placed on the round bar placement section 9 for arranging the round bar 2 at a predetermined position in the longitudinal and width directions. At this time, the round bar 2 is only being placed, so it is not rotated. As shown in FIG. 1, a plurality of round bar support portions 9 are arranged so as to be able to support the entire round bar 2.

[0017] Next, in order to raise the round bar 2 to the shooting position, the support part 5 adjacent to the round bar arrangement part 9 rises, and the contact part between the support roller 51 and the round bar 2 becomes higher than the height of the round bar arrangement part 9, and the support part 5 supports the round bar 2 (Fig. 4B). Note that two support parts 5 are arranged on both ends of each round bar arrangement part 9.

[0018] The support unit 5 has two support rollers 51, which support the round bar 2 (FIG. 4B). The support rollers 51 can be rotated by the rotation of the rotating roller 52 that contacts the support roller 51. The rotation of the support rollers 51 can rotate the round bar 2 in the direction of arrow A, as shown in FIG. 4C.

[0019] As the round bar 2 rotates in direction A, first, the foreign matter on the surface of the round bar 2 is removed by the foreign matter removal unit 7, and then, by contacting the wiping unit 8, most of the surface liquid such as oil or water is removed, and then the surface of the side of the round bar 2 can be photographed from above by the camera 4.

[0020] As described above, the round bar inspection device 1 is capable of inspecting a surface without removing liquids such as oil or water from the surface in advance. After the inspection, if some oil remains on the surface, it is not necessary to apply anti-rust oil again, or anti-rust oil may be applied if necessary.

[0021] Explanation of symbols 1.Round bar inspection equipment 2. Round bars 3. Filming unit 31. Camera stand 32.Stretching section 4. Camera 5.Support part 51. Support roller 52.Rotating roller 6. Lighting 7.Foreign object removal section 71.Foreign object removal holding part 8. Wipe section 81. Wipe holder 9. Round bar arrangement section

Claims

1. A round bar inspection device that inspects the surface condition of a metal round bar using a camera, a camera mounting structure having an extension portion and on which the camera is mounted; a strip-shaped foreign matter removal section fixed to the extension section for removing foreign matter from the surface of the round bar; a wiping portion fixed to the extension portion and configured to wipe liquid from the surface of the round rod; a photographing unit that is slidable in the length direction of the round bar; Further provided is a support portion that supports the round bar while rotating it in a circumferential direction, the foreign substance removal unit and the wiping unit are arranged so that the surface of the rotating round bar first comes into contact with the foreign substance removal unit, and then is photographed immediately after coming into contact with the wiping unit; the foreign matter removal section is made of urethane foam, The round bar inspection device, wherein the wiping portion is made of rubber.

2. 2. The round bar inspection device according to claim 1, wherein the extension portion is structured so as not to obstruct photography.

3. The round bar inspection device according to claim 1 or 2, comprising a plurality of photographing units.

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