Round bar inspection device

Abstract

The objective is to provide a round bar inspection device that eliminates the need for the rust-preventive oil removal process before inspection, and enables inspection of metal round bars while removing foreign matter and liquids. [Solution] A round bar inspection device for inspecting the surface condition of a round metal bar by inspecting it with a camera, the device comprising a camera mounting base on which the camera is mounted, a foreign matter removal unit for removing foreign matter from the surface of the round bar, and a wiping unit for wiping liquid from the surface of the round bar, and the camera being slidable in the longitudinal direction of the round bar.

Description

Technical Field

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

Background Art

[0002] Conventionally, the surface of a hot-worked metal round bar has been inspected by taking pictures with a camera for processing marks formed by processing, dents and scratches during transportation, rust, and cutting chips (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Normally, the surface of a metal round bar is coated with rust preventive oil to maintain a good surface condition including rust prevention. However, in order to inspect the surface of the round bar by taking pictures with a camera, there is a problem that there are many steps, that is, the oil on the surface of the round bar must be removed, then the round bar is placed in the inspection device, and after the inspection is completed, the rust preventive oil must be applied again. The inventors of the present invention have developed a round bar inspection device that can inspect a metal round bar while removing foreign substances and liquids in order to omit the step of removing rust preventive oil in advance, and have reached the present invention.

Means for Solving the Problems

[0005] That is, the present invention includes the following. [1] A round bar inspection device for inspecting the surface state of a metal round bar with a camera, a camera mounting structure for mounting the camera, a foreign substance removing unit for removing foreign substances on the surface of the round bar, A round bar inspection device comprising a photographic unit that is slidable in the longitudinal direction of the round bar and has a wiping section for wiping liquid from the surface of the round bar. [2] The system further comprises a support that supports the round bar while it is rotating in the circumferential direction, The foreign matter removal unit and the wiping unit are arranged such that a photograph is taken immediately after the surface of the rotating round bar comes into contact with the foreign matter removal unit and the wiping unit, as described in [1], for the round bar inspection apparatus. [3] The round bar inspection apparatus according to [1], wherein the camera mounting structure includes an extension portion having a structure that does not obstruct imaging, 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], comprising a plurality of imaging units. [Effects of the Invention]

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

[0007] [Figure 1] Figure 1 is an overall view of the round bar inspection device 1. [Figure 2] Figure 2 is a perspective view of the imaging unit U. [Figure 3] Figure 3 shows the imaging unit U as viewed from the longitudinal direction of the round bar 2. [Figure 4A] Figure 4A shows the round bar 2 placed in the round bar arrangement section 9 for inspection. [Figure 4B] Figure 4B shows how the round bar 2 is supported by the support part 5 for inspection purposes. For ease of understanding, the support part 5 is shown as a cross-section. On the paper, the vertical arrows indicate the upward direction of the support part 5. [Figure 4C]Figure 4C shows how the round bar 2 rotates due to the rotation of the support roller 51. The arrows indicate the rotation directions of the round bar 2, the support roller 51, and the rotating roller 52, respectively. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will now be described. Without departing from the spirit of the invention, designs or modifications based on prior art, etc., are also included in the present invention.

[0009] [Round bar inspection device] Figure 1 shows the round bar inspection device 1 of the present invention. The round bar inspection device 1 has multiple imaging units U, each having a camera 4 positioned facing a metal round bar 2. During filming, the round bar 2 is supported by the support part 5. As shown in Figure 4C, the support part 5 is equipped with two support rollers 51, and the structure is such that the round bar 2, which is positioned to be 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 a round bar 2 that rotates in the circumferential direction using a camera 4. Furthermore, since the imaging unit U, including the camera 4, is slidable in the longitudinal direction of the round bar 2 (indicated by the arrow in Figure 1), inspection is possible within the slidable area. Additionally, because the round bar 2 rotates in the circumferential direction, inspection is possible across the entire circumferential direction of the round bar 2. Furthermore, the metal round bar 2 in question includes round bars made of metal materials in general, such as non-ferrous metals, in addition to steel.

[0010] [Photography Unit] The imaging unit U will be explained using Figures 2 and 3. The shooting unit U includes a camera 4, a camera mounting structure 3 on which the camera 4 is mounted, and lighting 6 for illuminating the shooting location. The camera mounting structure 3 comprises a camera mounting base 31 and a U-shaped extension 32 attached to the camera mounting base 31.

[0011] The camera mounting table 31 of the camera mounting structure 3 is composed of a plate-shaped member, on which the camera 4 is mounted and can slide in the length direction of the round bar 2. That is, by sliding the camera mounting table 31, the shooting position of the camera 4 can be changed.

[0012] Below the camera mounting table 31, a lighting 6 is arranged. As shown in FIGS. 4A, B, and C, the lighting 6 irradiates light from obliquely above the round bar 2.

[0013] The camera mounting structure 3 has an extension part 32 connected to the camera mounting table 31. The extension part 32 is composed of a plurality of plate-shaped members and has a U-shaped configuration. The two ends of the U-shape are connected to the camera mounting table 31, and as shown in FIG. 2, the camera can take pictures through the inside of the U-shape.

[0014] The extension part 32 is provided with a foreign object removing part 7 and a wiping part 8 in a strip shape (linear shape) along the longitudinal direction of the round bar 2. The foreign object removing part 7 is composed of urethane foam. By using urethane foam as the material, it is possible to remove very small foreign objects such as scraps and dust, and if they are very small foreign objects, they can be trapped inside the urethane foam. The foreign object removing part 7 may directly attach the urethane foam to the extension part 32, or a foreign object removing holding part 71 for holding the urethane foam may be provided on the extension part 32 and the urethane foam may be arranged therein. As shown in FIGS. 4B and C, the foreign object removing part 7 is arranged to contact the round bar 2 obliquely above the round bar 2 (diagonally above the opposite side of the lighting 6) when the round bar 2 is in the shooting position.

[0015] The wiping part 8 is provided on the extension part 32 and is composed of a strip-shaped (linear) rubber along the longitudinal direction of the round bar 2. By using rubber as the material, it is possible to wipe liquids such as oil and water on the surface of the round bar 2 and take pictures of a clean surface. Due to the characteristics of its shape, for example, the strip-shaped rubber part of a wiper for an automobile may be used for the wiping part 8. The wipe portion 8 may be made by directly attaching the rubber to the stretch portion 32, or a wipe holding portion 81 may be provided on the stretch portion 32 to hold the rubber, and the rubber may be arranged to fit inside it. As shown in Figures 4B and 4C, the wipe section 8 is positioned so as to be in contact with the round bar 2 at an angle above the round bar 2 (diagonally above the light source opposite the illumination 6) when the round bar 2 is in the shooting position, and can be positioned adjacent to the foreign object removal section 7.

[0016] [Support part] The round bar inspection device 1 includes a support section 5 that supports the round bar 2 while rotating it in the circumferential direction. The support section 5 will be explained using Figures 4A to 4C. As shown in Figure 4A, in preparation for inspection, the round bar 2 is placed on the round bar placement section 9, which positions the round bar 2 in the longitudinal and widthwise directions to predetermined positions. At this time, the round bar 2 is only placed and does not rotate. As shown in Figure 1, multiple round bar arrangement sections 9 are provided so that they can 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 placement section 9 rises, and the contact point between the support roller 51 and the round bar 2 becomes higher than the height of the round bar placement section 9, so that the support part 5 supports the round bar 2 (Figure 4B). Note that two support parts 5 are placed at both ends of each round bar placement section 9.

[0018] The support section 5 is equipped with two support rollers 51, and the round bar 2 is supported by the two support rollers 51 (Figure 4B). The support rollers 51 can rotate as the rotating roller 52 that contacts the support rollers 51 rotates. As the support rollers 51 rotate, the round bar 2 can be rotated in the direction of arrow A, as shown in Figure 4C.

[0019] As the round bar 2 rotates in direction A, first, foreign matter on the surface of the round bar 2 is removed by the foreign matter removal unit 7, then most of the surface liquid such as oil and water is removed by contact with the wipe unit 8, 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 can inspect the surface without having to remove any liquids such as oil or water from the surface beforehand. After inspection, if some oil remains on the surface, it is not necessary to reapply rust-preventive oil, but it may be applied if necessary.

[0021] Explanation of the symbols 1. Round bar inspection device 2. Round bar 3. Filming Unit 31. Camera mounting 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 area 81. Wipe holding section 9. Round bar arrangement section

Claims

1. A round bar inspection device that uses a camera to inspect the surface condition of a round metal bar, A camera mounting structure on which the aforementioned camera is mounted, A foreign matter removal unit for removing foreign matter from the surface of the round bar, A round bar inspection device comprising a photographic unit that is slidable in the longitudinal direction of the round bar and has a wiping section for wiping liquid from the surface of the round bar.

2. The system further includes a support part that supports the aforementioned round bar while it rotates in the circumferential direction, The round bar inspection apparatus according to claim 1, wherein 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 apparatus according to claim 1, wherein the camera mounting structure includes an extension portion having a structure that does not obstruct imaging, 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 claims 1 to 3, comprising a plurality of imaging units.

Images