JPS6340691A - Laser marking device - Google Patents

Laser marking device

Info

Publication number
JPS6340691A
JPS6340691A JP61183942A JP18394286A JPS6340691A JP S6340691 A JPS6340691 A JP S6340691A JP 61183942 A JP61183942 A JP 61183942A JP 18394286 A JP18394286 A JP 18394286A JP S6340691 A JPS6340691 A JP S6340691A
Authority
JP
Japan
Prior art keywords
mask
mark
marking
hole
laser light
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.)
Granted
Application number
JP61183942A
Other languages
Japanese (ja)
Other versions
JPH0249834B2 (en
Inventor
Hiroshi Kato
加藤 宏志
Tsugunori Masuda
増田 二紀
Nobuhide Abe
阿部 宣英
Junichi Katsuse
勝瀬 準一
Shunichi Hirono
広野 俊一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamura Corp
Original Assignee
Tamura Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tamura Corp filed Critical Tamura Corp
Priority to JP61183942A priority Critical patent/JPS6340691A/en
Publication of JPS6340691A publication Critical patent/JPS6340691A/en
Publication of JPH0249834B2 publication Critical patent/JPH0249834B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/066Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Printer (AREA)
  • Laser Beam Processing (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To enable the marking by the letter of a different combination by selecting the mask hole of the peripheral edge part of a discoid mask closest to a laser light source and arranging in order the mask hole of the other discoid mask inside the transmission window adjacent the mask hole thereof. CONSTITUTION:The 1st mark hole 14 of the mask plate 13a closest to a laser light is located at the left end part of the inside of the marking area 20 by a laser light. The 2nd mark hole 14 of the mark plate 13b of the next step is then located at the left end part located inside the transmission window 18 of the right-hand neighbor of the mark hole 14 of this mask plate 13a. The mark hole 14 corresponding to the next step mask plate 13 is arranged in order at the left end part inside the transmission window 18 of the right-hand neighbor of the mark hole 14 located similarly thereafter. The laser light is projected inside the marking area 20 and the laser light passing through the mark hole 14 is reduced by a reduction lens, projected on the surface of a marking body and the marking is performed.

Description

【発明の詳細な説明】 〔発明の目的〕 〈産業上の利用分野) 本発明は、シー11光を被マーキング物の表面に照射し
て文字や記号等のマークを施すレーザマーキング装置に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a laser marking device that applies marks such as letters and symbols by irradiating the surface of an object to be marked with a laser beam.

(従来の技術) レー曇ア尤によるマーキングが、インクによる捺印や機
械による刻印などに代って用いられてきている。これは
、マーキングミスがなく、高速で処理でき、運転コスト
が安価なためであり、半導体や電子部品、びん等のマー
キングに応用されつつある。
(Prior Art) Marking by laser dipping has been used in place of ink stamps, mechanical stamps, and the like. This is because there are no marking errors, it can be processed at high speed, and operating costs are low, and it is being applied to marking semiconductors, electronic parts, bottles, etc.

レーザ光によるマーキング方法は、レー(ア光を集光さ
せると非常に高いエネルギー密度がi!;られるので、
この集光されたレーザ光を被マー4ング物の表面に照射
してマーキングを行なうものである。すなわち、集光さ
れたレーザ光を被マーキング物に照射すると、被マーキ
ング物に吸収された光エネルギーが熱エネルギーとなり
、被マーキング材の表面温度を急激に上背させ、溶融魚
介させる1、特に、照射時間(パルス幅)が短いと、被
マー4ング物の熱伝導による熱の発散がないため激しい
温度上界となり、表面を瞬nに溶融し、蒸発さIるので
、レーザ光を与えた部分のみに文字、記号や図柄を彫り
込んだり変色させたりすることができる。
The marking method using laser light is a very high energy density when the laser light is focused.
Marking is performed by irradiating the surface of the object to be marked with this focused laser light. That is, when the object to be marked is irradiated with a focused laser beam, the light energy absorbed by the object to be marked turns into thermal energy, which rapidly raises the surface temperature of the object to be marked, causing it to melt. If the irradiation time (pulse width) is short, there will be no heat dissipation due to thermal conduction of the object to be marked, resulting in a severe temperature upper limit, which will melt the surface in an instant and evaporate, so it is difficult to apply laser light. Characters, symbols, and designs can be engraved or the color can be changed only on the part.

上述した文字、記号や図柄等のマークをマーキング7る
には、これらのマークに対応するマーク孔を有するマス
クを用い、このマスクにレーザ光を当て、マーク孔を通
ったレーザ光を被マーキング物の表面に照射し、マーク
孔と同じマークを肢マーキング珈上にマーキングし一〇
いる。
To mark marks such as the above-mentioned characters, symbols, and designs, a mask with mark holes corresponding to these marks is used, a laser beam is applied to this mask, and the laser beam passing through the mark hole is directed onto the object to be marked. The same mark as the mark hole is marked on the limb marking hole.

ここで、複数の文字や記号等から成るマークをマーキン
グする場合、従来は例えば実開昭55−58349号公
報に示されるように、マスクとして同心状に設けられた
外径が順次大きくなる複数の回転円板を用い、これらの
円板の周縁部に設けlこ文字または記号等に対応するマ
ーク孔を、円板のヒ(下方向に組合ゼて用いていた。ま
た、このほかに、特開昭59−29178@公報に示さ
れるように、マスクとして複数の回転円板を用い、これ
らの互いに対向する周縁部に透過窓を設け、これら各円
板のHいに対向する透過窓には、組合わされるべき文字
や記号等のマーク孔を有するマスク板を設け、これらマ
スク板の組合けににす、所望のマークを1!7るように
したものである。
Here, when marking a mark consisting of a plurality of characters, symbols, etc., conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 55-58349, a plurality of concentric masks whose outer diameters are gradually increased are used as a mask. Rotating disks were used, and mark holes corresponding to letters or symbols were provided on the periphery of these disks and were used by aligning them downwards. As shown in Japanese Patent Publication No. 59-29178, a plurality of rotating disks are used as masks, transparent windows are provided at the peripheral edges of these disks facing each other, and the transparent windows facing each other are , mask plates having mark holes for letters, symbols, etc. to be combined are provided, and 1 to 7 desired marks can be placed on the combination of these mask plates.

(発明が解決しようとする問題点) しかし、これらのマスクはいずれも、マスク板が1」で
なるため、異なった組合Uの文字や記号等をマーキング
する場合はマスク板を交換しな〔ブればならなかった。
(Problem to be solved by the invention) However, since all of these masks have a mask plate of 1", when marking letters or symbols of different combinations U, the mask plate must be replaced. I had to.

本発明の目的は、マスク板の交換を要することなく、異
なった組合せの文字や記号によるマーキングを行なうこ
とができるレーデマーキング装置を提供することにある
6 〔発明の構成〕 (問題点を解決するための手段) 本発明によるレーザマーキング装置(よ、複数の円板状
のマスクを用いており、このマスクは円板の中心から所
定半径の同心円上に、マーキングすべき文字、記号等に
よるマーク孔を一定間隔で設けると共に、これら各マー
ク孔間に、他のマーク孔を配列可能な大ぎさの透過窓を
設けている。
An object of the present invention is to provide a rede marking device that can mark with different combinations of characters and symbols without having to replace the mask plate. Means for Marking) A laser marking device according to the present invention uses a plurality of disc-shaped masks, and this mask marks marks of characters, symbols, etc. to be marked on concentric circles with a predetermined radius from the center of the disc. Holes are provided at regular intervals, and a transmission window large enough to allow other mark holes to be arranged is provided between each mark hole.

そして、これら複数の円板状のマスクを、シー1f光の
光軸に沿って設けられた共通の中心軸に対しそれぞれ回
転可能な状態で順次取付けたものである。
A plurality of these disk-shaped masks are sequentially attached in a rotatable manner with respect to a common central axis provided along the optical axis of the S1f light.

(M用) 本発明では、複数の文字や記号等の組合せによるマーク
をマーキングする場合、まず、レーザ光源に最も近い円
板状マスクの周縁部に設けられたマーク孔を選択し、そ
のマーク孔の隣に位置する透過窓内に、他の円板状マス
クに設けられたマーク孔を順次配列することにより、所
望の文字、記g等の組合せによるマークを1!?、マー
キングを行なうちのである。
(For M) In the present invention, when marking a mark with a combination of multiple characters, symbols, etc., first select the mark hole provided on the peripheral edge of the disk-shaped mask closest to the laser light source, and By sequentially arranging the mark holes provided in other disc-shaped masks in the transmission window located next to the 1!, a mark with a desired combination of characters, g, etc. can be made. ? , marking is done.

(実施例) 以下、本発明の一実施例を図面を参照して説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

まず、第3図によりレージマーキングの基本概念を説明
する。図において、11はシリンドリカルレンズから<
kる集光レンズで、レープ光源からのレーザ光12を受
け、これを集光させる。13はステンシルど呼ばれるマ
スクで、集光されたレーザ光と対向する如く段(Jられ
、このレーIJ’光を通過させるべく、マーキングすべ
き文字や記号等の形状によるマーク孔14を持っている
。15はメニスカスレンズからなる縮小レンズで、マス
ク13のマーク孔14を通ったレーザ光を縮小して図示
しない被マーキング物の表面に照射さける。
First, the basic concept of range marking will be explained with reference to FIG. In the figure, 11 is from the cylindrical lens <
A condensing lens receives the laser beam 12 from the rape light source and condenses it. Reference numeral 13 denotes a mask called a stencil, which has marking holes 14 in the shape of characters, symbols, etc. to be marked, in order to allow the laser beam to pass through. Reference numeral 15 denotes a reduction lens made of a meniscus lens, which reduces the laser beam that has passed through the mark hole 14 of the mask 13 and irradiates it onto the surface of an object to be marked (not shown).

第1図は本発明の一実施例を丞すもので、複数の文字や
記号等の組合ばによるマークを得る/こめ、マスク13
として複数の円板状のマスク板13a。
FIG. 1 shows an embodiment of the present invention, in which a mark is obtained by combining a plurality of characters, symbols, etc., and a mask 13 is shown.
A plurality of disk-shaped mask plates 13a.

13b・・・・・・13fによる回転式のものを用いて
いる。
13b...13f rotary types are used.

上記円板状のマスク板(例えば13a)は、第2図で示
す如く、その中心から所定半径で設定された同心円17
上に文字、記号等によるマーク孔14を一定間隔で設け
ている。また、これら各マーク孔14間にそれぞれ横長
のb過窓18を設けている。この透過窓18は、他のマ
スク113b 、 13c・・・・・・13[に設けら
れたマーク孔14を順次配列できる大きさに設定するa
池のマスク板13b 、 13c・・・・・・13[ら
、上述したマスク板13aと同じマスク孔14および透
過窓18を持つ。そしてこれらは、第1図で示ケ如く、
レーリ゛光の光軸に沿って設置Jられた共通の中心軸1
9に対してそれぞれ回転可能な状態で順次取付りられる
As shown in FIG. 2, the disk-shaped mask plate (for example, 13a) has a concentric circle 17 set at a predetermined radius from its center.
Mark holes 14 with letters, symbols, etc. are provided on the top at regular intervals. Further, horizontally long b-passing windows 18 are provided between each of these mark holes 14, respectively. This transmission window 18 is set to a size that allows the mark holes 14 provided in the other masks 113b, 13c, . . . , 13[ to be sequentially arranged.
The mask plates 13b, 13c, . . . 13 have the same mask holes 14 and transmission windows 18 as the mask plate 13a described above. And these, as shown in Figure 1,
Common central axis 1 installed along the optical axis of Rayleigh light
9, each is attached in turn in a rotatable state.

上記(14成において、被マーキング物の表面に例えば
rsN30ONJというマークを施す場合、まずレーザ
光源に最も近いマスク板(図示手前のらの)13aの、
「S」用のマーク孔14を、第3図で示した集光レンズ
11によって集光されたレーザ光によるマーキングエリ
ア20内の左端部に位置さぼる。次に、このマスク板1
3aの、「S」用のマーク孔14の図示右隣りの透過窓
18内の左端部に、次段のマーク板13bの、rNJ用
のマーク孔14を位置させる。さらに、このマスク板1
3bの、rNJ用のマーク孔14の図示右隣りの透過窓
18内の左端部に、次段のマスク板13Cの、「3」用
のマーク孔14を位置さゼる。以下同様にして、位置決
めされたマーク孔14の右隣りの透過窓18内左端部に
、次段のマスク板13d 、 13e 、 13fの対
応するマーク孔14を位置さけ゛、前述したマーキング
エリア20内にrsN30ONJというマーク用のマー
ク孔14を順次配列する。そして、上記マーキングエリ
ア20内に、第3図で示した集光レンズ11によって集
束サレj:: L/ −+y光ヲ’J5−(、前記f’
5N30ONJ用のマーク孔14を透過さVる。このマ
ーク孔14を透過したレーザ光は縮小レンズ15で縮小
され、図示しない被マーキング物の表面に前用され、ア
ーキングを行なう。
In the above (14 formation), when marking the surface of the object to be marked with a mark such as rsN30ONJ, first, the mask plate 13a (on the front side in the figure) closest to the laser light source,
The mark hole 14 for "S" is positioned at the left end of the marking area 20 formed by the laser beam focused by the condensing lens 11 shown in FIG. Next, this mask board 1
The rNJ mark hole 14 of the next stage mark plate 13b is located at the left end in the transmission window 18 on the right side in the figure of the mark hole 14 for "S" of 3a. Furthermore, this mask board 1
The mark hole 14 for "3" of the next stage mask plate 13C is positioned at the left end of the transmission window 18 on the right side in the figure of the mark hole 14 for rNJ of 3b. Thereafter, in the same manner, the corresponding mark holes 14 of the next stage mask plates 13d, 13e, 13f are positioned at the left end of the transmission window 18 on the right side of the positioned mark hole 14, and the corresponding mark holes 14 are placed in the marking area 20 described above. Mark holes 14 for the mark rsN30ONJ are sequentially arranged. Then, within the marking area 20, the condensing lens 11 shown in FIG.
It passes through the mark hole 14 for 5N30ONJ. The laser beam transmitted through this mark hole 14 is reduced by a reduction lens 15 and applied to the surface of an object to be marked (not shown) to perform arcing.

このように、複数の文字や記号等を組合せて成るマーク
をマーキングする場合、複数のマスク板に設けられたマ
ーク孔を、前段のマスク板の透過窓を通してマーキング
エリア内に順次配列することができ、文字を2同等の異
なった組合ゼに対してらマーク板を交換することなく容
易に対処づることがでさる。
In this way, when marking a mark consisting of a combination of multiple characters, symbols, etc., the mark holes provided on multiple mask plates can be sequentially arranged within the marking area through the transparent window of the previous mask plate. , it is possible to easily deal with different combinations of two equivalent characters without replacing the mark board.

〔発明の効果) 以上のように本発明によれば、複数の文字や記号等の組
合せによるマークをマーキングするに当り、マスクを交
換することなく、異なった組合せのマークをマーキング
することができ、マスク交換のために装置の休止を要せ
ず、自動化ラインでの生産休止のような障害を防止でき
る。
[Effects of the Invention] As described above, according to the present invention, when marking a mark with a combination of a plurality of characters, symbols, etc., it is possible to mark a mark with a different combination without replacing the mask. There is no need to stop the equipment for mask replacement, and it is possible to prevent problems such as production stoppages on automated lines.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明によるレーザマーキング装置の一実施例
における要部を示す斜視図、第2図は第1図で用いたマ
スクを示す正面図、第3図はレーザマーキングの概念説
明図の図である。 12・・レーザ光、13・・マスク、14・・マスク孔
、17・・同心円、18・・透過窓、19・・中心軸。 帽がノ文え川 序2図
Fig. 1 is a perspective view showing the main parts of an embodiment of the laser marking device according to the present invention, Fig. 2 is a front view showing the mask used in Fig. 1, and Fig. 3 is a diagram illustrating the concept of laser marking. It is. 12... Laser light, 13... Mask, 14... Mask hole, 17... Concentric circle, 18... Transmission window, 19... Central axis. Kaga-no-mone Kawa-e 2 illustration

Claims (1)

【特許請求の範囲】[Claims] (1)レーザ光をマスクに設けたマーク孔を通して被マ
ーキング物に照射しマーキングを行なうレーザマーキン
グ装置において、 前記マスクは、円板状を成し、その中心に対し所定半径
の同心円上にマーキングすべき文字、記号等のマーク孔
を一定間隔で設けると共に、これら各マーク孔間に他の
マーク孔を配列可能な大きさの透過窓を設けてなり、こ
のマスクを複数枚、レーザ光の光軸に沿って設けられた
共通の中心軸に対しそれぞれ回転可能な状態で順次取付
けたことを特徴とするレーザマーキング装置。
(1) In a laser marking device that performs marking by irradiating a laser beam onto an object to be marked through a mark hole provided in a mask, the mask has a disk shape, and markings are made on a concentric circle with a predetermined radius from the center of the mask. Mark holes for characters, symbols, etc., are provided at regular intervals, and a transmission window is provided between each of these mark holes to a size that allows other mark holes to be arranged. A laser marking device characterized in that each laser marking device is sequentially attached in a rotatable state about a common central axis provided along the .
JP61183942A 1986-08-05 1986-08-05 Laser marking device Granted JPS6340691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61183942A JPS6340691A (en) 1986-08-05 1986-08-05 Laser marking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61183942A JPS6340691A (en) 1986-08-05 1986-08-05 Laser marking device

Publications (2)

Publication Number Publication Date
JPS6340691A true JPS6340691A (en) 1988-02-22
JPH0249834B2 JPH0249834B2 (en) 1990-10-31

Family

ID=16144505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61183942A Granted JPS6340691A (en) 1986-08-05 1986-08-05 Laser marking device

Country Status (1)

Country Link
JP (1) JPS6340691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0289842U (en) * 1988-12-28 1990-07-17

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978870A (en) * 1982-10-27 1984-05-07 Shibuya Kogyo Co Ltd Laser printer
JPS61215U (en) * 1984-06-07 1986-01-06 電気音響株式会社 flyback transformer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978870A (en) * 1982-10-27 1984-05-07 Shibuya Kogyo Co Ltd Laser printer
JPS61215U (en) * 1984-06-07 1986-01-06 電気音響株式会社 flyback transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0289842U (en) * 1988-12-28 1990-07-17

Also Published As

Publication number Publication date
JPH0249834B2 (en) 1990-10-31

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