JPH08136475A - Surface observing apparatus for plate-like material - Google Patents

Surface observing apparatus for plate-like material

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Publication number
JPH08136475A
JPH08136475A JP27890494A JP27890494A JPH08136475A JP H08136475 A JPH08136475 A JP H08136475A JP 27890494 A JP27890494 A JP 27890494A JP 27890494 A JP27890494 A JP 27890494A JP H08136475 A JPH08136475 A JP H08136475A
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JP
Japan
Prior art keywords
plate
surface
arm
rail
material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP27890494A
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Japanese (ja)
Inventor
Seiji Ota
Hiroyuki Uchida
洋之 内田
聖司 太田
Original Assignee
Kawasaki Steel Corp
川崎製鉄株式会社
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Application filed by Kawasaki Steel Corp, 川崎製鉄株式会社 filed Critical Kawasaki Steel Corp
Priority to JP27890494A priority Critical patent/JPH08136475A/en
Publication of JPH08136475A publication Critical patent/JPH08136475A/en
Application status is Pending legal-status Critical

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Abstract

PURPOSE: To easily find defects regarding the evenness of a plate-like material and observe the defects.
CONSTITUTION: Regarding a surface observing apparatus for a plate-like material by which the surface of a plate-like material is observed in one end parts of a pair of arm members 1a, 1b by overlapping the arm members 1a, 1b while a gap being kept between them, joining the other end parts of the arm members, and inserting the plate-like material in the gap; observation windows 2a, 2b equipped with lens 3a, 3b are formed in the same positions of the other end parts of the arm members and the surface defect found by the observation window 2a in the front side and whose position is defined is observed and confirmed by the observation window 2b on the rear side.
COPYRIGHT: (C)1996,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、例えば冷延鋼板において発生する微細な欠陥を発見し、観察する装置に関し、 The present invention relates, for example discovered fine defects generated in cold-rolled steel sheet, relates observing apparatus,
特に、板状被検査材の一方の面に発生した欠陥が他方の面から見ても欠陥であるような凹凸性の欠陥について、 In particular, the unevenness of defects such as defects generated on one surface of the plate-shaped object to be inspected material is defective even when viewed from the other surface,
それぞれの面の欠陥を容易に対比できるようにして欠陥を発見し、観察する装置に関する。 Defects each face so as to be easily contrasted to discover defects relates observing apparatus.

【0002】 [0002]

【従来の技術】例えば冷延鋼板の製造プロセスにおいては、帯状の鋼板が各種の処理を受け、最終的に冷延コイルあるいは冷延シートの形で出荷される。 In the production process of the Related Art For example cold-rolled steel sheet, strip-shaped steel plate is subjected to various processes, ultimately are shipped in the form of cold rolled coils or the cold-rolled sheet. そしてプロセスのさまざまな段階で、自動欠陥検出装置やオペレータによる目視によって表面欠陥の検査が行われ、表面品質が管理されている。 And at various stages of the process, inspection of surface defects is performed by visual by automatic defect detecting device and the operator, the surface quality is managed.

【0003】冷延鋼板の表面欠陥の1つに鋼板表面のわずかな凹凸によって発生する凹凸性欠陥があるが、この種の欠陥は人間の肉眼では検出不可能なものが多く、砥石によって鋼板の表面を軽く研削し、欠陥を明瞭にして目視検査を行ういわゆる砥石検査法が一般に採用されている。 [0003] Although there are irregularities defects caused by slight irregularities of the steel sheet surface on one of the surface defects of the cold-rolled steel sheet, defects of this type in the human eye many things undetectable, the steel sheet by the grindstone lightly grinding the surface, so-called grindstone tests to perform visual inspection by clarity of defects is generally employed. 砥石検査によって検出される表面欠陥の例を図5 Figure is an example of surface defects detected by the grinding wheel inspection 5
に示す。 To show. Rはロール、Dはロール表面に付着した異物、 R is the roll, D is attached to the roll surface foreign matter,
Sは鋼板等の板状材である。 S is a plate-like material such as a steel plate.

【0004】ロールRの表面に異物Dが付着していると、このロールに接触する鋼板Sの一部が異物Dに押し上げられ、この図における裏面は凹み、表面は盛り上がって凸状となる。 [0004] foreign object D on the surface of the roll R is attached, a portion of the steel sheet S in contact with the roll is pushed into the foreign matter D, the back surface is recessed in this figure, the surface becomes convex raised. このような欠陥の発生原因を究明し、 To investigate the cause of such defects,
適切な処置をとるためには、ロールと接触する裏面の接触痕を発見しなければならないが、通常、このような接触痕は針先で突いたような微細なものも多く、特に鋼板表面が鏡面ではなくダル仕上げと称する微小な凹凸の形成されたものである場合、この凹凸にまぎれて発見が困難である。 To take appropriate measures, but must find the contact trace of the back in contact with the roll, usually, such contact trace many others such fine as poked by the needle tip, in particular the surface of the steel sheet If those formed of fine irregularities called dull finish rather than a mirror surface, it is difficult to discover under cover to the unevenness. 従って、微細な凹状欠陥を発見する代わりに、表面の凸状部分を砥石検査により顕在化させて捕捉し、その裏面を観察して欠陥を捜し当てる方法が採られる。 Thus, instead of finding the fine concave defects, the convex portion of the surface captured by manifested by grindstone inspection method Sagashiateru defects by observing the back surface is taken.

【0005】従来、この目的のため、ピンセット状の器具を鋼板をはさむように持ち、器具の表面側の先端を欠陥位置に当て、器具の裏面側の先端が指し示す位置で裏面の欠陥を発見するというやり方が行われていた。 Conventionally, for this purpose, has a tweezers-like instrument so as to sandwich the steel plate, against the distal end surface side of the instrument to the defect position, finding the back surface of the defect at the position indicated by the rear surface side of the tip of the instrument manner that has been carried out. しかし、この方法では、ピンセット状の器具の先端が微小な欠陥部を覆ってしまうため欠陥部を直接観察することができず、欠陥発生の原因となった異物の大きさ、形状を特定することが困難であるという問題点がある。 However, this method can not be observed defect directly the tip of the tweezers-like instrument will cover the minute defect, the size of the foreign matter that caused the defect, to identify the shape there is a problem that it is difficult.

【0006】 [0006]

【発明が解決しようとする課題】本発明は、このような問題点を解消し、欠陥部を容易に発見して十分に観察することのできる板状材の表面観察装置を実現することを目的とする。 [0008] The present invention aims to realize such to solve the problems, the surface observation apparatus of the plate material can be carefully monitored and easily find the defect to.

【0007】 [0007]

【課題を解決するための手段】請求項1に記載の本発明は、一対のアーム部材を隙間を設けて重ね合わせて一方の端部を接合し、隙間内に板状材を挿入して他方の端部で板状材表裏面を観察する板状材の表面観察装置において、このアーム部材の他方の端部の同一位置に観察窓を設けたことを特徴とする板状材の表面観察装置である。 SUMMARY OF THE INVENTION The present invention according to claim 1, joined to one end portion superimposed by a gap of a pair of arm members, by inserting the plate-like member into the gap other in the end plate member surface observation apparatus for observing the plate-like member front and back surfaces, the plate material surface observation device, characterized in that provided an observation window at the same position of the other end portion of the arm member it is.

【0008】請求項2に記載の本発明は、同一位置に観察窓(2a、2b) を設けたアーム部材を長手方向に出入自在に、かつ板状材表面に平行に回転自在に支点部材に係止してなる請求項1に記載の板状材の表面観察装置である。 [0008] The present invention described in claim 2, observed at the same position window (2a, 2b) an arm member having a freely and out longitudinally, and parallel to rotatably to the fulcrum member to the plate-like material surface it is a surface observation apparatus of the plate material according to engagement locks formed by claim 1. 請求項3に記載の本発明は、一対のアーム部材を隙間を設けて重ね合わせて一方の端部を接合し、隙間内に板状材を挿入して他方の端部で板状材表裏面を観察する板状材の表面観察装置であって、第1のレールと、これと直角方向の第2のレールと、前記第1のレール上を滑動自在に移動する第1のブロックと、前記第2のレール上を滑動自在に移動する第2のブロックと、前記第1のブロックに、前記第1のレールと直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリットを設けた第1のアームと、前記第2のブロックに、前記第2のレールと直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリットを設けた第2のアームとから構成され、第1のアームと第2のアームとの交差部分で観察窓を形成するようにしたことを特徴と The present invention according to claim 3, joined to one end portion superimposed by a gap of a pair of arm members, by inserting the plate-like member into the gap plate member front and back surfaces at the other end a surface observing apparatus of the plate material to observe, the first rail, and a perpendicular direction of the second rail which includes a first block that moves on the first rail slidably, wherein a second block that moves on the second rail slidably, wherein the first block, the attached to the first rail and perpendicular, the first arm having a slit of the same width substantially over the entire length If, on the second block, the attached to the second rail and perpendicular, is composed of a second arm provided with a slit of the same width substantially over the entire length, a first arm and a second arm and wherein at the cross section that was to form the observation window る板状材の表面観察装置である。 That is a surface observation apparatus of the plate material.

【0009】さらに、請求項3に記載の本発明は、観察窓にレンズを備えた請求項1ないし3のいずれかに記載の板状材の表面観察装置である。 Furthermore, the present invention is defined in claim 3 is a surface observation apparatus of the plate material according to any one of claims 1 including the lens to the observation window 3.

【0010】 [0010]

【作 用】本発明によれば、同一寸法のアーム部材を重ね合わせ、末端部を接合し、先端部に観察窓を設けているから、表裏の観察窓は常に板状材の表裏両面の同じ位置にあり、一方の面の発見しやすい表面欠陥から、発見しにくい他方の面の表面欠陥を発見、捕捉することができる。 According to the work for the present invention, superimposing the arm member of the same dimensions, and joining the ends, because they provided an observation window at the distal end portion, the front and back of the observation window is always the same for both sides of the plate-like member in position, the discovery easily surface defects on one surface, the surface defects found difficult other surface discovery, can be captured. また、観察窓にレンズを取り付けるようにすると、微小な欠陥部分を拡大して観察することが可能となり、ダル仕上げの微細な凹凸に埋没している欠陥でも容易に発見することができる。 Additionally, if you attach the lens to the observation window, it is possible to observe an enlarged minute defect portion can be easily found in defects that are buried in the fine irregularities of the dull finish.

【0011】 [0011]

【実施例】 【Example】

実施例1 本発明の第1の実施例を図1に示す。 A first embodiment of Example 1 the invention shown in FIG. この図はこの実施例の表面位置指示装置の斜視図で、1a、1bはアーム部材、2a、2bは観察窓、3a、3bはレンズ、4は接合部である。 This figure is a perspective view of the surface position indicator apparatus of this embodiment, 1a, 1b arm member, 2a, 2b observation window, 3a, 3b are a lens, and 4 a joint. 1a、1bは同一寸法の一対のアーム部材で、隙間を設けてぴったりと位置を重ね合わせ、一方の端部を接合部4としてピンセット状に接合してある。 1a, 1b are a pair of arm members of the same dimensions, overlay a snug position a clearance, are joined to the tweezers-like one end portion as the joint 4. 接合部4と反対のアーム材1a、1bの他方の端部の同一位置には、観察窓 Junction 4 opposite arm member 1a, the same position of the other end portion of 1b is viewing window
2a、2bが設けられ、それぞれレンズ3a、3bがはめ込まれている。 2a, 2b are provided, each lens 3a, 3b is fitted.

【0012】この実施例の表面位置指示装置の使用例を図2により説明すると、アーム部材1a、1bの隙間に板状材Sを挿入し、装置全体を手で持つなどして移動させながら観察窓2aあるいはレンズ3aにより砥石法等によって顕著になっている板状材S表面の欠陥部分を発見し、捕捉する。 [0012] To describe an example of using the surface position indication device of this embodiment in FIG. 2, observation arm member 1a, and the platelike member S into the gap 1b, the while moving the like having the entire apparatus by hand found defective portion of the plate-shaped member S surface which is remarkable by grinding method or the like by the window 2a or a lens 3a, it captures. このとき、反対側の観察窓2bはこの欠陥部分の同一位置の裏側にあるから、観察窓2bあるいはレンズ3b At this time, since the opposite side of the observation window 2b is the back of the same position of the defect, the observation window 2b or a lens 3b
により板状材Sの裏面を観察すれば微細な欠陥部分を発見することができる。 It can be found a fine defect by looking at the back side of the plate-shaped member S by.

【0013】この実施例の表面観察装置は、構造が簡単で取り扱いも容易であるが、表面側で欠陥を発見したとき、装置全体をそのままの位置で保持しておくのに努力を要するのがやや難点である。 [0013] surface observation apparatus of this embodiment, although the structure is easy easy to handle, when it discovers a defect on the surface side, that requires effort to keep holding the entire apparatus in situ it is a little difficulty. 実施例2 本発明の第2の実施例を図3に示す。 A second embodiment of the second embodiment the present invention shown in FIG. これは第1の実施例の表面位置指示装置を支点部材5に取り付けたもので、支点部材5は、アーム材1a、1bの少なくとも一方を挿通させて長手方向に出入自在とするとともに、支点部材5自身が板状材表面と垂直な回転軸により回転自在となっているので、アーム材先端にある観察窓2aを板状材S表面の任意の点に位置させることができる。 This is formed by attaching a surface position indicator apparatus of the first embodiment the fulcrum member 5, the fulcrum member 5, the arms material 1a, as well as freely and out in the longitudinal direction is passed through at least one 1b, the fulcrum member since 5 itself is rotatable by a rotation axis perpendicular plate material surface, it is possible to position the viewing window 2a on the arm member tip at any point of the plate-shaped member S surface. 矢印および鎖線により移動状況を示す。 Indicating the movement status by arrows and broken lines. 板状材S表面の欠陥部分を発見し、反対側の観察窓2bにより微細な欠陥部分を発見、観察することは第1の実施例と同様である。 Found defective portion of the plate-shaped member S surface, finding a fine defect by the opposite side of the observation window 2b, it is the same as in the first embodiment to be observed.

【0014】なお、支点部材5あるいはアーム材1a、1b [0014] Incidentally, the fulcrum member 5 or arm member 1a, 1b
に目盛りあるいはセンサを設けておけば、極座標の形式で欠陥位置の読み取りや記録を行うことができる。 If provided scale or sensors can be read and recorded in a defect location in polar coordinates form. 実施例3 本発明の第3の実施例を図4に示す。 A third embodiment of the third embodiment the present invention shown in FIG. この実施例では第1の実施例の表面観察装置をアームとして2組使用する。 In this embodiment two sets using surface observation apparatus of the first embodiment as arms. 8は第1のレール、7はこの上を滑動する第1のブロック、6は第1のブロック7に第1のレール8と直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリット61を設けた第1のアームで、第1のレール8はたとえば板状材Sの1辺に平行に設置される。 8 the first rail, 7 the first block to slide over this, 6 is attached to the first rail 8 and perpendicular to the first block 7, a slit 61 having the same width substantially over the entire length in the first arm, are disposed parallel to one side of the first rail 8, for example plate-shaped member S.

【0015】11は第2のレール、10はこの上を滑動する第2のブロック、9は第2のブロック10に第2のレール [0015] 11 second rail, the second block 10 to slide over this, the second rail to the second block 10 9
11と直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリット91を設けた第2のアームで、第1のアーム6 11 and mounted perpendicularly at a second arm provided with a slit 91 having the same width substantially over the entire length, the first arm 6
と第2のアーム9との交差部分に正方形の観察窓2が形成される。 When the square of the observation window 2 is formed at the intersection between the second arm 9. 表側の観察窓2により板状材S表面の欠陥部分を発見し、裏側の観察窓2により微細な欠陥部分を発見、観察することは第1の実施例と同様である。 The front side of the observation window 2 found defective portion of the plate-shaped member S surface, finding a fine defect by the back side of the observation window 2, it is the same as the first embodiment to observe. 観察窓2に適当なブロックを嵌合させ、その中にレンズ3を埋め込むようにすれば一層好都合である。 Viewing window 2 an appropriate block is fitted to a further advantageous if to fill the lens 3 therein. 図4では表側、 In Figure 4 the front side,
裏側を示す文字a、bを省略しているが各アームが表裏同一のアーム部材で構成されていることは実施例1、2 It letter a showing the back side, although not b which each arm is composed of front and back the same arm member Examples 1, 2
と同様である。 Is the same as that.

【0016】なお、第1のレール8および第2のレール [0016] Note that the first rail 8 and the second rail
11に目盛りあるいはセンサを設けておけば、XY座標の形式で欠陥位置の読み取りや記録を行うことができる。 If provided scale or sensor 11 can be read or recorded form the defect position of the XY coordinates.

【0017】 [0017]

【発明の効果】本発明によれば、被検査材の表面で発見した欠陥位置と同一箇所を裏側の観察窓が指示し、レンズにより詳しく観察できるので、欠陥発生の原因を早期に発見して処置を講じることができ、製品の表面品質が向上するという、すぐれた効果がある。 According to the present invention, the defects found located at the same position on the surface of the test material is instruction back side of the observation window, it is possible to observe in more detail the lens, to discover the cause of the defect generated in the early it is possible to take action, that the surface quality of the product is improved, there is an excellent effect.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施例を示す斜視図である。 Is a perspective view showing a first embodiment of the present invention; FIG.

【図2】本発明の第1の実施例の使用例を示す側面図である。 2 is a side view showing an example of use of the first embodiment of the present invention.

【図3】本発明の第2の実施例を示す正面図である。 3 is a front view showing a second embodiment of the present invention.

【図4】本発明の第3の実施例を示す正面図である。 4 is a front view showing a third embodiment of the present invention.

【図5】本発明に係わる表面欠陥例を示す概念図である。 5 is a conceptual diagram showing surface defects example according to the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 アーム部材 2 観察窓 3 レンズ 4 接合部 5 支点部材 6 第1のアーム 7 第1のブロック 8 第1のレール 9 第2のアーム 10 第2のブロック 11 第2のレール 61、91 スリット S 板状材 1 arm member 2 observation window 3 lens 4 junction 5 fulcrum member 6 first arm 7 first block 8 the first rail 9 the second arm 10 and the second block 11 and the second rail 61,91 slit S plate Jo material

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 一対のアーム部材(1a、1b) を隙間を設けて重ね合わせて一方の端部を接合し、隙間内に板状材(S)を挿入して他方の端部で板状材表裏面を観察する板状材の表面観察装置において、このアーム部材(1a、 1. A pair of arm members (1a, 1b) and are superposed with a gap and joining the one end plate at the other end is inserted plate material the (S) into the gap the surface observing apparatus of the plate material to observe the timber front and back surfaces, the arm member (1a,
    1b) の他方の端部の同一位置に観察窓(2a、2b) を設けたことを特徴とする板状材の表面観察装置。 Other observations in the same position of the end windows (2a, 2b) surface observing apparatus of the plate material, characterized in that a of 1b).
  2. 【請求項2】 同一位置に観察窓(2a、2b) を設けたアーム部材(1a、1b)を長手方向に出入自在に、かつ板状材表面に平行に回転自在に支点部材(5)に係止してなる請求項1に記載の板状材の表面観察装置。 2. A viewing window at the same position (2a, 2b) arm members (1a, 1b) provided with a freely and out longitudinally, and parallel to rotatably fulcrum member to the plate-like material surface (5) surface observation apparatus of the plate material according to claim 1, engaged locks composed.
  3. 【請求項3】 一対のアーム部材を隙間を設けて重ね合わせて一方の端部を接合し、隙間内に板状材(S)を挿入して他方の端部で板状材表裏面を観察する板状材の表面観察装置であって、第1のレール(8)と、これと直角方向の第2のレール(11)と、前記第1のレール(8)上を滑動自在に移動する第1のブロック(7) 3. A superposed with a gap and a pair of arm members joined to one end, observing the plate-like member front and back surfaces at the other end is inserted plate material the (S) into the gap a surface observing apparatus of the plate material to a first rail (8), and this perpendicular direction of the second rail (11), moving said first rail (8) above slidably the first block (7)
    と、前記第2のレール(11)上を滑動自在に移動する第2のブロック(10)と、前記第1のブロック(7)に、 When, with the second rail (11) a second block that moves on the slidably (10), said first block (7),
    前記第1のレール(8)と直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリット(61)を設けた第1のアーム(6)と、前記第2のブロック(10)に、前記第2のレール(11)と直角方向に取り付けられ、ほぼ全長にわたり同一幅のスリット(91)を設けた第2のアーム(9)とから構成され、第1のアーム(6)と第2のアーム(9)との交差部分で観察窓(2)を形成するようにしたことを特徴とする板状材の表面観察装置。 Attached to the first perpendicular direction rail (8), substantially first arm provided with a slit (61) of the same width over the entire length (6), said second block (10), the second attached to the perpendicular direction rail (11) is constructed from a second arm (9) provided with a slit (91) of the same width substantially over the entire length, a first arm (6) a second arm ( 9) a plate-like member surface observation apparatus being characterized in that so as to form a viewing window (2) in the intersection of.
  4. 【請求項4】 観察窓(2)にレンズ(3)を備えた請求項1ないし3のいずれかに記載の板状材の表面観察装置。 4. A surface observing apparatus of the plate material according to any one of claims 1 provided to the observation window (2) a lens (3) 3.
JP27890494A 1994-11-14 1994-11-14 Surface observing apparatus for plate-like material Pending JPH08136475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27890494A JPH08136475A (en) 1994-11-14 1994-11-14 Surface observing apparatus for plate-like material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27890494A JPH08136475A (en) 1994-11-14 1994-11-14 Surface observing apparatus for plate-like material

Publications (1)

Publication Number Publication Date
JPH08136475A true JPH08136475A (en) 1996-05-31

Family

ID=17603719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27890494A Pending JPH08136475A (en) 1994-11-14 1994-11-14 Surface observing apparatus for plate-like material

Country Status (1)

Country Link
JP (1) JPH08136475A (en)

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