JPS58123164A - Detector for marked part of tube material of wire - Google Patents
Detector for marked part of tube material of wireInfo
- Publication number
- JPS58123164A JPS58123164A JP427782A JP427782A JPS58123164A JP S58123164 A JPS58123164 A JP S58123164A JP 427782 A JP427782 A JP 427782A JP 427782 A JP427782 A JP 427782A JP S58123164 A JPS58123164 A JP S58123164A
- Authority
- JP
- Japan
- Prior art keywords
- light
- wire tube
- tube material
- mark
- wire
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はfh管材のマーク・熱検出装置に係り、特に長
尺の線相又は骨相の連続製造工程中に塗付されたインク
マーク部を光学的に自動検知する装置に1するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mark/heat detection device for FH pipe materials, and in particular to a device for optically and automatically detecting ink marks applied during the continuous manufacturing process of long linear or bone structures. 1.
彷来より、長尺の線材または骨相(以下、線管材と総称
する)の連糾伸鞄、(伸管)加工、塗装加1、扱置加]
−或いは内面溝付Iノ(1工等を行なう場合に、該線管
材に発生する欠陥部に対してインク等によりマークを付
し、そしてその欠陥マーク部を11視で検出して、その
音13分を人力で除去することか実施されていた。From Yakirai, continuous stretching, (tube stretching) processing, painting, and handling of long wire rods or bone structures (hereinafter collectively referred to as wire tube materials)]
-Alternatively, when carrying out internal groove groove I (1) work, etc., mark the defective part that occurs in the wire pipe material with ink, etc., and then detect the defective mark part with 11 vision and check the sound. The 13 minutes were removed manually.
しかしながら、作業者の目視による検出は見落しの虞が
大きく、また自動選別ができないという欠点かあり、時
代の要求である省力化傾向にも逆行するもので、作業能
率の向上は望めないものであった。However, visual detection by the operator has the disadvantage that there is a high risk of oversight and automatic sorting cannot be performed, and it goes against the labor-saving trend demanded by the times, so it cannot be expected to improve work efficiency. there were.
また、このような欠点を解消するために、投光器と受光
器とを備えた光学センサを用いようとした場合において
は、従来の投受光器が正反射光を利JI+して判別する
ものであるところから、感度がり検出の場合には、材料
の四部、相打のゆれ(振!10・)または表1IIの勿
りなどをインクマークとじて判断してしまう傾向にあり
、これでは良品を不良品として処理し兼ねず、それ故装
置の信ね性が十分でない同順を内在し、適切な判l!1
により高能率の操作を行なわしめることは極めて困難な
ものであったのである。In addition, in order to eliminate such drawbacks, when attempting to use an optical sensor equipped with a light emitter and a light receiver, the conventional light emitter and receiver utilize specularly reflected light for discrimination. However, in the case of sensitive detection, there is a tendency to judge the four parts of the material, fluctuations in trade (shake! 10), or defects in Table 1II as ink marks. There is a possibility that the product may be treated as a good product, and therefore the reliability of the device may not be sufficient. 1
Therefore, it was extremely difficult to perform highly efficient operation.
ここにおいて、本発1は、かかる事情に鑑みて為された
ものであって、長尺の線管材の連続製造工棉中に人為的
に塗布されたインクマーク部を、乱反射光を用いた光学
センサにより誤作動なく自動的に且つ効率良く検知し得
るようにした装置を提供することを目的とするものであ
る。Here, the present invention 1 has been developed in view of the above circumstances, and is an optical method using diffused reflected light to remove ink marks artificially applied during the continuous manufacturing process of long wire tube materials. It is an object of the present invention to provide a device that can detect automatically and efficiently using a sensor without malfunction.
そして、かかる目的を達成するために、本発明に係る線
管材のマーク都検出装置は、長手方向に走行せしめられ
ている線管材に付与されたマーク部を検出する装置にし
て、該線管材の細心に対して垂直な方向の第1位置と、
該第1位置及び該細心を含む平面内において該第1位置
より該細心側に所定の傾斜角度をもって位置する第2位
置との何れか一方に投光器を、他方に該投光器から前記
線管材に投光された光の乱反射光を受光する受光器をそ
れぞれ配置せしめてなる1組の投受光手段を、該線管材
の周りに柊数組ドけ、それら投受光手段の各投光器から
の投光に対するWIJ記線管線管材−ク部における乱反
射光を各投光器に対する受光器の少なくとも一つにて受
光し、検出するようにしたことを特徴とするものである
。In order to achieve this object, the mark detection device for a wire tube according to the present invention is a device for detecting a mark portion attached to a wire tube running in the longitudinal direction. a first position in a direction perpendicular to the fineness;
A projector is placed at either one of the first position and a second position located at a predetermined angle of inclination on the meticulous side from the first position in a plane including the minute center, and a light is projected from the projector onto the wire tube material at the other. A set of light emitting/receiving means each having a light receiver arranged to receive the diffusely reflected light of the emitted light is placed around the wire tube material, and the light emitting/receiving means responds to the light emitted from each light emitter. The present invention is characterized in that the diffusely reflected light at the WIJ recording tube tube section is received and detected by at least one of the light receivers for each light projector.
かくして、かくの如き本発明に従えば、本装置か乱反射
光受光式の光学センサを採用したために、外乱光に比較
的影1されず、またマーク部のつやや、相打表面の曇り
や、材料のゆれ(振動)に左右されることもなくなり、
それ故に従来のような感度が敏感すぎて誤作動を引き起
す虞もなくなったのである。Thus, according to the present invention, since the present device employs an optical sensor that receives diffusely reflected light, it is relatively unaffected by ambient light, and it is also possible to detect the gloss of the mark, the cloudiness of the striking surface, etc. It is no longer affected by material fluctuations (vibrations),
Therefore, there is no longer the risk of the conventional sensor being too sensitive and causing malfunctions.
また、1組の投受光手段を線管材の周りに複数組設けて
…」管孔反射光を受光して検出するようにしたために、
材料の片面にしか塗布されていないマークでも確実に検
知し得て、非接触で正確迅速な自動選別か可能となって
、省力化と作業能率の同」−の優ねた効果をも奏し得る
こととなったのである0
以下、本発明を更に具体的に明らかにするために、本発
明に係る線管材のマーク部検出装散の一例を図面に基づ
いて詳細に説明することとする。In addition, a plurality of sets of light emitting/receiving means are provided around the wire tube material to receive and detect the light reflected from the tube hole.
Even marks applied to only one side of the material can be reliably detected, and non-contact automatic sorting can be performed accurately and quickly, resulting in excellent labor-saving and work efficiency effects. Hereinafter, in order to clarify the present invention more specifically, an example of the apparatus for detecting a mark portion of a wire tube material according to the present invention will be explained in detail based on the drawings.
先ず、第1図、第2図において、2.4.6はそれぞれ
独立した投光器であって、長手方向に走行せしめられる
線管材8の軸心lOに対して垂直な面上の、該軸心10
を中心とする同一円周上において、光軸が該軸心lOに
向けられ、且つ互に120度の挟角を形成する第1位置
に固定されている。First, in FIGS. 1 and 2, reference numerals 2, 4, and 6 are independent projectors, and the axial center of the wire tube 8, which is made to run in the longitudinal direction, is located on a plane perpendicular to the axial center IO. 10
On the same circumference centered at , the optical axis is directed toward the axis lO, and is fixed at a first position forming an included angle of 120 degrees with each other.
一方、受光器12.14.16はそれぞれ前記投光62
.4、’6と1組をなして合計8組の光学センサ18(
投受光手段)を形成するものであり、前記第1位置と前
記軸心10を含む平面内において該第1位置より細心1
0側にa−40〜60度の傾斜角度をもつ第2位りにそ
れぞれ固定されている。On the other hand, the light receivers 12, 14, and 16 are connected to the light emitting device 62, respectively.
.. 4 and '6, making a total of 8 sets of optical sensors 18 (
The light emitting/receiving means) is arranged at a distance 1 from the first position within a plane including the first position and the axis 10.
They are each fixed at a second position having an inclination angle of a-40 to 60 degrees on the 0 side.
なお、ここでは、投光器2.4.6及び受光器12.1
4.16に対する制御回路として、それぞれ他の投光器
による干渉に基づく誤動作を防止するために、間欠交互
投受光回路が設けられている。部ち、第3図に示される
ように、3組の光学センサ18か、時間の経過とともに
それぞれ交互にある一定時間たけ、例えば10 m s
ec以上の時間狛に順次作動し得るような通常の電気i
il!回路が付加されているのである。勿−1この各組
の光学センサ18の作動時間は線管材8の走行速度に応
じて退官に設定されることとなる。In addition, here, the light emitter 2.4.6 and the light receiver 12.1
As a control circuit for 4.16, an intermittent alternate light emitting/receiving circuit is provided in order to prevent malfunctions due to interference from other projectors. As shown in FIG. 3, three sets of optical sensors 18 are used alternately over time for a certain period of time, for example, 10 m s.
Ordinary electricity i that can operate sequentially for a time longer than ec
Il! A circuit has been added. Of course, the operating time of each set of optical sensors 18 is set according to the traveling speed of the wire tube material 8.
しかし、相打の走行速度が著しく速い場合には、不作動
時間の影響が大きくなり、不都合となることもあるとこ
ろから、そのような、場合には、本回路に代えて、投光
器、受光器の各組を同一円周上ではなく、材料軸方向に
ずらした位置に設置する対策も必要に応じて採用される
こととなる。However, if the running speed of the partner is extremely fast, the influence of the inoperative time becomes large and may be inconvenient. If necessary, a measure will be adopted in which each set is installed not on the same circumference but at positions shifted in the material axis direction.
また、受光器12.14.16からの出力に対しては、
第4図に示されるように、レベル設定器30を備えた判
別(ロ)路82.101孔回路84及び、タイマー36
を備えた長さ判定回路88等からなる検出回ん40が設
置されている。この検出回路40は、受光′#?i12
.14.16からの出力変化を、それぞれ設定されたレ
ベルと比較し、所定レベル以上の場合にのみ判別回ん8
2によって判別して導通せしめ、それぞれの判別回路3
2のいずれかで判別された前記受光器12.14.16
の出力変化の変化時間を、タイマー86による設定時間
と比較して、設定時間以上に続く場合に、長さ判定回路
88によって検出信号を出力するものである。In addition, for the output from the light receiver 12.14.16,
As shown in FIG.
A detection circuit 40 consisting of a length determination circuit 88 and the like is installed. This detection circuit 40 detects light receiving '#? i12
.. 14. Compare the output changes from 16 with the respective set levels, and make a judgment only if the output changes are above the predetermined level 8
2, the respective discrimination circuits 3
2. The light receiver 12.14.16 identified by either
The change time of the output change is compared with the time set by the timer 86, and if the change continues longer than the set time, the length determination circuit 88 outputs a detection signal.
なお、図示はしないが、光学センサ18の有効視野は線
管材8の径と同等か、又はそれ以上として比較的大きく
定め、且つ遠焦点型とする。これは光を集中させず、焦
点をぼかすことが高感度の弊害を防止する上で好結果を
まねくからである。Although not shown, the effective field of view of the optical sensor 18 is set to be relatively large, equal to or larger than the diameter of the wire tube material 8, and is of a far-focus type. This is because defocusing the light without concentrating it produces good results in preventing the harmful effects of high sensitivity.
また、受光器12.14.16の波長感度特性は近赤外
付近に感度ピークを有するものが望ましい。それは、電
灯や外光などの外乱光によって信号が乱されないように
するためである。Further, it is desirable that the wavelength sensitivity characteristics of the light receivers 12, 14, and 16 have a sensitivity peak near near-infrared. This is to prevent the signal from being disturbed by external light such as electric lights or external light.
且つまた、タイマー36と長さ判定回路38を設けたの
は、線管材8の表面における点状の汚れ。Moreover, the timer 36 and length determination circuit 38 are provided to prevent spot-like dirt on the surface of the wire tube material 8.
に対してもマークとして感応する誤動作を防止するため
である。This is to prevent malfunctions that may occur due to the presence of marks.
このように構成されたマーク検出装置において、第1位
置にある投光器2.4.6から走行中の線管材8に向け
て間欠的に交互投光を行なわしめることとなる。即ち、
例えは投光器2.4.6の順序で極めて短時間交互に投
光することによって、第2位ね゛にある受光器12.1
4.16には乱反射光か入射させられる。もし、マーク
842が線管材8の表面の一部にのみ存在する場合でも
8方向よりkWWB2周囲に投光するので、いずれの光
かがマーク部42を照射し、その存在を明らかにする。In the mark detection device configured in this manner, light is intermittently and alternately projected from the light projector 2.4.6 at the first position toward the running wire tube 8. That is,
For example, by emitting light alternately for a very short time in the order of emitters 2.4.6, the receiver 12.1 in second place can be
4. Diffusely reflected light is incident on 16. Even if the mark 842 exists only on a part of the surface of the wire tube material 8, since light is projected around the kWWB 2 from eight directions, any of the lights will illuminate the mark portion 42 and reveal its presence.
この乱反射光は所定レベル以下の場合は除外され、それ
以上の場合にのみそれぞれの判別回路32のいずれかか
ら長さ判定回路38へ出力されるのであり、また該長さ
判別回路38では所定時間以内の出力変化の場合は除外
され、それ以上に継続した出力変化の場合のみが検出信
号として出力されることとなるのである。そして、この
検出化りにもとづいて欠陥部除去装置等が作動させられ
て、自動切断処理などが効果的に行なわれるのである。This diffusely reflected light is excluded when it is below a predetermined level, and only when it is above a predetermined level, it is outputted from one of the respective discriminating circuits 32 to the length determining circuit 38. Cases where the output changes within this range are excluded, and only cases where the output changes continue longer than that are output as a detection signal. Then, based on this detection, a defect removal device or the like is activated to effectively carry out automatic cutting or the like.
かくして、本実施例が乱反射光受光式であるために、マ
ーク部42のつや、材料表面の―りなどに左右されるこ
とがなくなったのであり、また投光器2.4.6、受光
器12.14.16等の有効視野を大きく且つ遠焦点型
としたために、線管材8の振動による受光量の変化を小
さくでき、誤作動の防止が可能となったのであり、従っ
て従来のようなfI!Ie過ぎる感度による誤作動の虞
も効果的Gこ解消し得たのである。In this way, since this embodiment is of the diffusely reflected light receiving type, it is not affected by the gloss of the mark portion 42, the roughness of the material surface, etc.; 14, 16 etc. has a large effective field of view and is of a far-focus type, it is possible to reduce changes in the amount of received light due to vibrations of the wire tube material 8, and it is possible to prevent malfunctions. Therefore, fI! The risk of malfunction due to too much Ie sensitivity was also effectively eliminated.
更にまた、8組の光学センサ18を線管材8の周りに設
けて乱反射光を受光して自動的に検出するようにしたた
めに、線管材8の片面にのみ塗布されたマークでも確実
に検知し得、目視の場合のような見落しなどの発生の虞
もなくなったのである。Furthermore, since eight sets of optical sensors 18 are provided around the wire tube material 8 to receive diffusely reflected light and automatically detect it, even marks applied only on one side of the wire tube material 8 can be reliably detected. In addition, there is no longer any risk of oversight, which is the case with visual inspection.
そして、長さ判定回路38の設置によって、線管材80
表曲のじみやへこみなどの単発的な光短変化を検知する
ことがなくなり、更に非接触で正確迅速な自動選別が可
能となって、省力化と作業能率の向上か達成されたので
ある。その上、本装随の投光器2.4.6や受光器12
.14.16には安価な汎用型が利用できる特色を有す
るので製作賢か低廉となる効果をも奏するものである。By installing the length determination circuit 38, the wire tube material 80
It is no longer possible to detect single short changes in light such as smudges or dents in the surface of the surface, and it has become possible to carry out accurate and quick automatic sorting without contact, resulting in labor savings and improved work efficiency. In addition, the emitter 2.4.6 and receiver 12 of this equipment
.. Since the 14.16 has the feature that an inexpensive general-purpose type can be used, it also has the advantage of being smart and inexpensive to manufacture.
なお、上述の実施例では、乱反射光を効果的に受光し得
るように、投光器2.4.6を前記第1位すに、受光器
12.14.16を前記第2位置に配置し、且つその傾
斜角度を40〜60°としたのであるが、本発明は何等
これに限定されるものではなく、その逆の配置であって
もよく、要するに$1位置と第2位置の何れか一方に投
光器を、他方に受光器を配置せしめたものでよいのであ
り、また第1位置と第2位糎との挟角を40〜60度の
範囲以外の角度としても何隻差支えない。更に、投光器
、受光器の数は上′記実施例のように8組とは限らす、
一般に複数゛組あればよいのである。In the above embodiment, in order to effectively receive the diffusely reflected light, the light projector 2.4.6 is placed in the first position, and the light receiver 12.14.16 is placed in the second position. In addition, although the inclination angle is set to 40 to 60 degrees, the present invention is not limited to this in any way, and may be arranged in the opposite direction.In short, either the $1 position or the second position may be used. The projector may be placed on one side and the light receiver may be placed on the other side, and the included angle between the first position and the second position may be outside the range of 40 to 60 degrees. Furthermore, the number of emitters and receivers is limited to eight sets as in the above embodiment.
Generally, it is sufficient to have multiple sets.
更にまた、各投光器及び各受光器が細管材の細心を中心
とする別個の同一円周上にそれぞれ配置されるものとし
たが、前述の如く該線管材の軸方向に光学センサーをず
らして配置することも可能である。また、間欠交互投受
光[!l!回路、判別回路32、長さ判定回路38等を
備えた検出回路が設けられ、光学センサー8の有効視野
の拡大、速焦点型の採用、近赤外付近に感度ピークを有
する感度特性の波長の採用等を実施した例を示したので
あるが、場合によりこれらの一部または全部を省略する
ことも可能である。Furthermore, each emitter and each light receiver were arranged on the same separate circumference centered on the fine center of the thin tube material, but as described above, the optical sensors were arranged offset in the axial direction of the wire tube material. It is also possible to do so. In addition, intermittent alternate light emission and reception [! l! A detection circuit including a detection circuit, a discrimination circuit 32, a length judgment circuit 38, etc. is provided, and the optical sensor 8 can expand the effective field of view, adopt a fast focusing type, and change the wavelength of the sensitivity characteristic having a sensitivity peak near the near infrared. Although we have shown an example in which such methods are adopted, some or all of these may be omitted depending on the situation.
また、その他、本発明には、その趣旨を逸脱しない範囲
内において、当業者の知誠に基づいて種々なる変形・改
良などを加え得ることは言うまでもないところである。In addition, it goes without saying that various modifications and improvements can be made to the present invention based on the wisdom of those skilled in the art without departing from the spirit thereof.
第1図は本発明に係る線管側のマーク部検出装置の一実
施例を示す娶都止面図であり、第2図はその右側面11
第3囚は間欠交互投受光回路の作・)
側状態説明図、第4図□は受光監制御圓鮎のブロック−
である。
2・1.4.6:投光器 8:細管材10:軸心
12.14.16:受光器18:光学センサ(
投受光手段)
30ニレベル設定器 32;判別回路38:長さ判定
回路 40:検出回路42:マーク部
出願人 住友軽金属工業株式会社FIG. 1 is a top view showing an embodiment of the mark detection device on the wire tube side according to the present invention, and FIG. 2 is a top view of the right side 11 thereof.
The third figure is an explanatory diagram of the construction side of the intermittent alternating light emitting and receiving circuit, and the fourth figure is the block of the light receiving supervisory control En-Ayu.
It is. 2.1.4.6: Floodlight 8: Thin tube material 10: Axis
12.14.16: Photoreceiver 18: Optical sensor (
Light emitting/receiving means) 30 Two-level setter 32; Discrimination circuit 38: Length determination circuit 40: Detection circuit 42: Mark section applicant: Sumitomo Light Metal Industries, Ltd.
Claims (1)
れたマーク部を検出する□装置にして、該線管材の細心
に対して垂直な方向の第1位置と、該第1位置及び該細
心を含む平面内において該第1位置より該細心側に所定
の傾斜角度をもって位置する第2位重との何れか一方に
投光器を、他方に該投光器から前記線管材に投光された
光の乱反射光を受光する受光器をそれぞれrA+l k
せしめてなる1組の投受光手段を、該線管材の周りに複
数組設け、それら投受光手段の各ん光器からの投光に対
する前記線管材のマークM・、における乱反射光を各投
光器に対する受光器の少なくとも一つにて受光し、検出
するようにしたことを特徴とする線管材のマーク部検出
装しコ。 (21FjlJ記幅数組幅数組光手段の各投光器及び各
受光器が、それぞれ前記線管材の軸心を中心とする別個
の同一円周上に配置せしめられた特許請求の範囲第1項
記載の装着。 (3)前記投受光手段の投光器が前記第1位重に、受光
器が前記第2位診にそれぞれ配置されると共に、該投光
器に対する該受光器の傾斜角度が40〜60°とされた
特許請求の範囲第1項記載の装置。 (4) mjf記各投受光手段の受光器からの出力変
化を、それぞれ設定されたレベルと比較し、判別する判
別回路と、それぞれの判別回路のいずれかで判別された
前記受光器の出力変化を変化時間で判断し、マーク信号
を出力するマーク長さ判定Ll:!l鮎とを含む検出回
りを有する特許請求の範囲第1項乃至第8項のいずれか
に記載の装着。[Scope of Claims] (1) A □ device for detecting a mark portion given to a wire tube running in the longitudinal direction, and a first position in a direction perpendicular to the fine details of the wire tube; A floodlight is placed on either one of the first position and a second position located at a predetermined inclination angle on the side of the fissure from the first position in a plane including the fissure, and a light source is attached to the other side from the floodlight to the wire tube material. The receivers that receive the diffusely reflected light of the projected light are rA+l k
A plurality of sets of light emitting/receiving means consisting of at least one light emitting/receiving means are provided around the wire tube material, and the diffusely reflected light at the mark M. A mark part detection device for a wire tube material, characterized in that at least one of the light receivers receives and detects light. (21FjlJ Several widths, several widths) Each of the projectors and the receivers of the light means are arranged on separate and identical circumferences centered on the axis of the wire tube material, as set forth in claim 1. (3) The light emitter of the light emitting/receiving means is disposed at the first position, and the light receiver is disposed at the second position, and the angle of inclination of the light receiver with respect to the light emitter is 40 to 60°. The device according to claim 1. (4) A discrimination circuit that compares and discriminates the output change from the light receiver of each of the light emitting and receiving means described in mjf with a respective set level, and each discrimination circuit. Claims 1 to 4 have a detection circuit including a mark length determination Ll:!l sweetfish that determines the output change of the light receiver determined by any of the change time and outputs a mark signal. Attachment as described in any of Section 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP427782A JPS58123164A (en) | 1982-01-14 | 1982-01-14 | Detector for marked part of tube material of wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP427782A JPS58123164A (en) | 1982-01-14 | 1982-01-14 | Detector for marked part of tube material of wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58123164A true JPS58123164A (en) | 1983-07-22 |
Family
ID=11580040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP427782A Pending JPS58123164A (en) | 1982-01-14 | 1982-01-14 | Detector for marked part of tube material of wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58123164A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62263837A (en) * | 1986-05-09 | 1987-11-16 | Daido Steel Co Ltd | Marking method for wire rod |
EP0731416A2 (en) * | 1995-03-07 | 1996-09-11 | Daimler-Benz Aerospace Aktiengesellschaft | Contactless detection device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54110734A (en) * | 1978-02-17 | 1979-08-30 | Matsushita Electric Ind Co Ltd | Optical reading device |
-
1982
- 1982-01-14 JP JP427782A patent/JPS58123164A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54110734A (en) * | 1978-02-17 | 1979-08-30 | Matsushita Electric Ind Co Ltd | Optical reading device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62263837A (en) * | 1986-05-09 | 1987-11-16 | Daido Steel Co Ltd | Marking method for wire rod |
EP0731416A2 (en) * | 1995-03-07 | 1996-09-11 | Daimler-Benz Aerospace Aktiengesellschaft | Contactless detection device |
EP0731416A3 (en) * | 1995-03-07 | 1998-01-21 | Daimler-Benz Aerospace Aktiengesellschaft | Contactless detection device |
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