JPH01218792A - Laser beam machine - Google Patents
Laser beam machineInfo
- Publication number
- JPH01218792A JPH01218792A JP63044119A JP4411988A JPH01218792A JP H01218792 A JPH01218792 A JP H01218792A JP 63044119 A JP63044119 A JP 63044119A JP 4411988 A JP4411988 A JP 4411988A JP H01218792 A JPH01218792 A JP H01218792A
- Authority
- JP
- Japan
- Prior art keywords
- cut
- inert gas
- laser beam
- gas
- cutting
- 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
Links
- 239000007789 gas Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000011261 inert gas Substances 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims description 15
- 230000003028 elevating effect Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 10
- 239000004744 fabric Substances 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、布、フィルムなどシート状の材料を長焦点レ
ンズを用いて、高速裁断を行なうレーザ加工機に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a laser processing machine that cuts sheet materials such as cloth and film at high speed using a long focal length lens.
［従来の技術］
第５図は長焦点レンズを用いた高速裁断レーザ加工機の
１つである２軸揺動ミラ一方式レーザ加工装置の構成を
示す模式図で、（２１）は加工レンズ、（２２）は揺動
ミラー、（２３）はエアーカーテン装置、（２４）は吸
引装置である。[Prior Art] Fig. 5 is a schematic diagram showing the configuration of a two-axis swinging mirror one-type laser processing device, which is one of the high-speed cutting laser processing machines using a long focal length lens, and (21) is a processing lens, (22) is a swinging mirror, (23) is an air curtain device, and (24) is a suction device.
次にこの作用を説明する。揺動ミラー（２２）は２軸で
制御されており、裁断パターンに対応して揺動し、加工
レンズ（２１）を通過して集光されたレーザビームを裁
断面に反射させ、裁断面上にある被裁断材を任意の形状
に裁断するようになっている。Next, this effect will be explained. The swinging mirror (22) is controlled by two axes, swings in accordance with the cutting pattern, and reflects the laser beam that has passed through the processing lens (21) and is focused on the cutting surface. The material to be cut is cut into any desired shape.
このとき、被裁断材がレーザビームによって可燃性のガ
スを発生する場合は、この発生ガスが発火し、被裁断材
の上部（３〜１０＋ｎｍ）で燃焼する。At this time, if the material to be cut generates flammable gas by the laser beam, the generated gas ignites and burns in the upper part (3 to 10+ nm) of the material to be cut.
このような場合に、エアーカーテン装置（２３）は発生
ガス又は燃焼煙を外部に効率的に除去する。また吸引装
置（２４）は発生ガスや煙を拡散させずに裁断された部
分のすき間から下部へ吸い込み、強制的に外部へ排出さ
せるようになっている。In such a case, the air curtain device (23) efficiently removes the generated gas or combustion smoke to the outside. Further, the suction device (24) sucks the generated gas and smoke into the lower part through the gap in the cut portion without diffusing the gas and smoke, and forcibly discharges the gas and smoke to the outside.
［発明が解決しようとする課題］
上記のような従来のレーザ加工機では、被裁断材から可
燃性ガスが大量に発生したときはエアーカーテン装置の
風量を増す必要がある。この風量をあまり増すと裁断さ
れた部品が風によって移動し、レーザビームで再裁断さ
れたりするという問題があった。[Problems to be Solved by the Invention] In the conventional laser processing machine as described above, when a large amount of flammable gas is generated from the material to be cut, it is necessary to increase the air volume of the air curtain device. If this air volume is increased too much, there is a problem that the cut parts may move due to the wind and be cut again by the laser beam.
本発明は、かかる問題点を解決するためになされたもの
で、レーザビームを被裁断材に照射した際、可燃性ガス
が発生しても被裁断材上面で炎を生じることのないレー
ザ加工機を得ることを目的とする。The present invention has been made to solve this problem, and is a laser processing machine that does not generate flames on the top surface of the material to be cut even if flammable gas is generated when the material to be cut is irradiated with a laser beam. The purpose is to obtain.
［課題を解決するための手段］
この目的を達成するために、第１の発明は、レーザビー
ムが集光する裁断面上部の全面にわたって不活性ガスを
均等に充満させるガス供給装置と、保護カバーを備えた
レーザ加工機に係り、第２の発明は、前記の保護カバー
によって形成された裁 ・断加工室内に不活性ガス雰囲
気層の区画を形成させる昇降式枠を設けたレーザ加工機
に関するものである。[Means for Solving the Problems] In order to achieve this object, the first invention provides a gas supply device that evenly fills the entire upper part of the cut surface on which the laser beam is focused, and a protective cover. A second invention relates to a laser processing machine equipped with a cutting/cutting chamber formed by the protective cover and an elevating frame that forms an inert gas atmosphere layer within the cutting chamber. It is.
［作 用］
第１の発明では、裁断面上を覆う保護カバーに゛ より
不活性ガスが空気中に放散することなく、裁断面上を覆
って充満する。これにより裁断面上の酸素が希釈され、
レーザ裁断により被裁断ｉから可燃性ガスが発生しても
発炎燃焼を起すことがない。[Function] In the first invention, the protective cover covering the cut surface allows the inert gas to fill the cut surface without dissipating into the air. This dilutes the oxygen on the cut surface,
Even if flammable gas is generated from the cut object i by laser cutting, flaming combustion will not occur.
第２の発明では、被裁断材の上に枠が下降して密着し、
不活性ガスの雰囲気の中に門に区扁を形成することによ
り短時間で被裁断材の上面部の酸素濃度□を減少させる
と共に、不活性ガスの漏洩を少くすることが８来る。In the second invention, the frame descends and comes into close contact with the material to be cut,
By forming a partition at the gate in an inert gas atmosphere, the oxygen concentration □ on the upper surface of the material to be cut can be reduced in a short time, and leakage of the inert gas can be reduced.
［実施例］
第１図は第１の発明の全体構成を示す斜視図である。図
において、（１）は不活性ガスを均等にレーザ裁断面に
送り込むガス供給装置［例えば、１．８ｍＸ１．５ｒｎ
の大きさ］で、ガスはガス入口（２）より入り、裁断面
全面に短時間で噴出されるようになっている。（３）は
コンベア、（４）は噴出されたガスが空気中に拡散しな
いように被覆ザる保護カ／＜−１（５）は保護カバー（
４）の上に設けられたエアーカニテンで、裁断時に発生
する煙を外部に排出する。（６）はレーザビーム、（７
）は裁断終了時に裁断された部品（８ａ）を取り出すた
め保護カバー（４） ＋’＝設けられた扉である。（８
）は被裁断材で、裁断された部品（８ａ）は前記のよう
に扉（７）′から取り出すか、又はコンベア（３）を駆
動させて保護カバー（４）の下から自動的に送り出すこ
とにより、加工室内で連続的に裁断を行なうことが出来
るようになっている。[Example] FIG. 1 is a perspective view showing the overall configuration of the first invention. In the figure, (1) is a gas supply device [for example, 1.8 m x 1.5 rn
size], gas enters from the gas inlet (2) and is blown out over the entire cut surface in a short time. (3) is the conveyor, (4) is the protective cover to prevent the ejected gas from dispersing into the air /<-1 (5) is the protective cover (
4) The air knife installed above exhausts the smoke generated during cutting to the outside. (6) is a laser beam, (7
) is a door provided with a protective cover (4) +'= to take out the cut part (8a) at the end of cutting. (8
) is the material to be cut, and the cut parts (8a) can be taken out from the door (7)' as described above, or automatically sent out from under the protective cover (4) by driving the conveyor (3). This allows continuous cutting within the processing chamber.
第２図（ａ） 、 （ｂ）はガス供給装置（１）の構造
を説明するため、一部を断面で示す模式図で、（ａ）は
平面図、（ｂ）は側面図である。図に示すように、ガス
人口（２）より供給された不活性ガスは、先づガスだめ
（ｌａ）に入る。更にこのガスだめ（１ａ）と連結しほ
ぼ等間隔に設けられたガス排出パイプ（１ｂ）［例えば
、径５’８ｍｍ ×Ｆ、６ ｍのパイプを６本併設］に
入り、この排出パイプ（ｌｂ）の上部に設けられた噴出
口（１ｃ） ［例えば、１關φ×５０個／１．６ｍ］よ
り噴出される。このガス排出パイプ（１ｂ）の上には小
孔［例えば、１ ｍｍφ、ピッチ２ｍｍ］を有する下部
パンチメタル板（９ａ） ［例えば、厚さ１＋＋＋ｍ］
が配置されその上部に布（１０） ［例えば、ウール程
度の厚さコを１０〜２０枚程度積層し、更にその上にス
ポンジメタル（１１） ｃ例□えば、セルメット＃６Ｒ
１厚さ５ｍｍ、セル数４４〜５５個／ ２５ 、４ｍｍ
ｓ多孔率約９８ｕ／ｖ％のもの］を配し、最上面全面
に下部パンチメタル板（９ａ）と同様の上部パンチメタ
ル（９ｂ）を配置しである。FIGS. 2(a) and 2(b) are schematic diagrams partially shown in cross section to explain the structure of the gas supply device (1), in which FIG. 2(a) is a plan view and FIG. 2(b) is a side view. As shown in the figure, the inert gas supplied from the gas port (2) first enters the gas reservoir (la). Furthermore, gas discharge pipes (1b) connected to this gas reservoir (1a) and provided at approximately equal intervals enter (for example, 6 pipes with a diameter of 5'8 mm x F, 6 m), and this discharge pipe (lb ) is ejected from the ejection port (1c) [for example, 1 diameter x 50 pieces/1.6 m] provided at the top of the pipe. Above this gas discharge pipe (1b) is a lower punched metal plate (9a) having small holes [for example, 1 mmφ, pitch 2 mm] [for example, thickness 1+++ m].
is placed on top of the cloth (10) [For example, about 10 to 20 sheets of cloth (about the same thickness as wool) are laminated, and on top of that, a sponge metal (11) is placed.For example, Celmet #6R
1 thickness 5mm, number of cells 44-55/25, 4mm
s with a porosity of approximately 98 u/v%], and an upper punch metal plate (9b) similar to the lower punch metal plate (9a) is placed over the entire top surface.
次にこの作用を説明する。このような構成であるから、
ガス入口（２）より供給された不活性ガスは、ガス排出
パイプ（１ｂ）の噴出口（１ｃ）より噴出した後、下部
パンチメタル板（９ａ）の小孔を抜け、布（１０）の積
層を通り、更にスポンジメタル（１１）を抜け、上部パ
ンチメタル（９ｂ）の小孔を抜けることにより、全面に
わたって均一に噴出し、保護カバー（４）によって形成
された加工室内全体に均一な不活性ガス雰囲気をつくる
ことが出来る。Next, this effect will be explained. Because of this configuration,
The inert gas supplied from the gas inlet (2) is ejected from the ejection port (1c) of the gas exhaust pipe (1b), passes through the small hole of the lower punched metal plate (9a), and passes through the laminated cloth (10). , passes through the sponge metal (11), and passes through the small holes in the upper punch metal (9b), thereby spraying out uniformly over the entire surface and uniformly inert throughout the processing chamber formed by the protective cover (4). Can create a gas atmosphere.
次に第３図は第２゛の発明の全体構成を示す斜視図であ
る。図において、’ （１２）は被裁断材（８）をコン
ベア（３）上に展張する延反機、（１３）は枠であって
、エアーシリンダ（１４）により上下に動くようになっ
ており、保護カバー（４）によって形成された加工室内
に送入されてきた不活性ガスがコンベア（３）上に噴き
出した後に、保護カバー（４）の下部から分散するのを
防止するようになっている。エアーシリンダ（１４）は
左右に４個取りつけられている。その他の符号は第１図
、第２図の実施例と同様のものを示す。Next, FIG. 3 is a perspective view showing the overall configuration of the second invention. In the figure, (12) is a spreading machine that spreads the material to be cut (8) onto a conveyor (3), and (13) is a frame, which is moved up and down by an air cylinder (14). The inert gas introduced into the processing chamber formed by the protective cover (4) is prevented from dispersing from the lower part of the protective cover (4) after being spouted onto the conveyor (3). There is. Four air cylinders (14) are installed on the left and right sides. Other symbols indicate the same elements as in the embodiments of FIGS. 1 and 2.
次に第４図は、枠（１３）の全体構成を示す断面図であ
る。図に示すように、枠（１３）の下部には、ゴムの如
きパツキン材（１６ａ）か取付けられており、被裁断材
（８）との間の気密性を保つようになっている。コンベ
ア（３）はコロ（５）で支えられて駆動する。更にコン
ベア（３）とガス供給装置（１）との間の気密性を保つ
ため、ガス供給装置（１）の上部にゴムの如きパツキン
＋Ｊ’（１６ｂ）が取りつけられている。Next, FIG. 4 is a sectional view showing the overall structure of the frame (13). As shown in the figure, a packing material (16a) such as rubber is attached to the lower part of the frame (13) to maintain airtightness between the frame and the material to be cut (8). The conveyor (3) is supported and driven by rollers (5). Further, in order to maintain airtightness between the conveyor (3) and the gas supply device (1), a rubber-like gasket +J' (16b) is attached to the top of the gas supply device (1).
次にこの作用を説明する。被裁断材（８）がコンベア（
３）によって送り込まれるときは、枠（１３）はエアー
シリンダ（１４）によって上方に例えば１０關程度上昇
し、加工部に被裁断材（８）が停止した後、枠（１３）
はエアーシリンダ（１４）によって下降し、コンベア（
３）上の被裁断材（８）に密着する。ついで不活性ガス
がガス供給装置（１）によって加工室内に供給される。Next, this effect will be explained. The material to be cut (8) is placed on the conveyor (
3), the frame (13) is raised upward by, for example, about 10 degrees by the air cylinder (14), and after the material to be cut (8) stops at the processing section, the frame (13)
is lowered by the air cylinder (14) and conveyor (
3) Closely adhere to the upper material to be cut (8). Inert gas is then supplied into the processing chamber by the gas supply device (1).
このとき不活性ガスが保護カバー（４）から漏洩しがち
で、加工室内の酸素濃度を減少させるための時間が多く
かかっていたが、枠（１３）により漏洩が防止されるこ
とにより、枠（１３）の区画内の酸素濃度を従来より早
く低下させ、又不活性ガスの消費を少くすることも出来
る。At this time, inert gas tends to leak from the protective cover (4), and it takes a lot of time to reduce the oxygen concentration in the processing chamber, but the frame (13) prevents leakage. 13) The oxygen concentration in the compartment can be lowered faster than before, and the consumption of inert gas can also be reduced.
［発明の効果］
本発明は以上説明したように、被裁断材の上面を保護カ
バーで覆い、不活性ガスを送入して酸素濃度を下げるこ
とにより、被裁断材の上面に可燃性ガスか発生しても燃
焼を起さないようにしたので、被裁断材の汚れ（すすの
付着、変色等）がなく、良質なレーザ裁断品か得られる
ようになった。[Effects of the Invention] As explained above, the present invention covers the top surface of the material to be cut with a protective cover and introduces inert gas to lower the oxygen concentration, thereby preventing flammable gas from forming on the top surface of the material to be cut. Since combustion is prevented even if it occurs, the material to be cut is free from stains (soot adhesion, discoloration, etc.) and high-quality laser-cut products can be obtained.
また裁断加工室内の被裁断材上に不活性ガス雰囲気層を
形成する密着枠を設置することによりガ一 ７ −
ス洩れかなくなり、ガス消費量が減少し、雰囲気形成に
要する時間を短縮することが出来た。In addition, by installing a tight-fitting frame that forms an inert gas atmosphere layer on the material to be cut in the cutting chamber, gas leakage is eliminated, gas consumption is reduced, and the time required to create the atmosphere is shortened. was completed.
第１図は第１の発明の全体構成を示す斜視図、第２図（
ａ＞ 、 （ｂ）はガス供給装置の模式図で、（ａ）は
平面図、（ｂ）は側面図、第３図は第２の発明の全体構
成を示す斜視図、第４図は枠の全体構成を示す断面図、
第５図は従来のレーザ加工装置の模式図である。
図において、（１）はガス供給装置、（３）はコンベア
、（４）は保護カバー、（５）はエアーカーテン、（６
）はレーザビーム、（８）は被裁断材、（９）はパンチ
メタル板、（１０）は布、（１１）はスポンジメタル、
（１２）は延反機、（１３）は枠、（１４）はエアーシ
リンダである。
なお各図中、同一符号は同−又は相当部分を示す。Figure 1 is a perspective view showing the overall configuration of the first invention, Figure 2 (
a>, (b) is a schematic diagram of the gas supply device, (a) is a plan view, (b) is a side view, FIG. 3 is a perspective view showing the overall configuration of the second invention, and FIG. 4 is a frame. A sectional view showing the overall configuration of
FIG. 5 is a schematic diagram of a conventional laser processing device. In the figure, (1) is a gas supply device, (3) is a conveyor, (4) is a protective cover, (5) is an air curtain, and (6) is a conveyor.
) is a laser beam, (8) is a material to be cut, (9) is a punched metal plate, (10) is a cloth, (11) is a sponge metal,
(12) is a spreading machine, (13) is a frame, and (14) is an air cylinder. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (2)
いて、レーザビームが集光する裁断面上部の面上に、不
活性ガスを均一に噴出するガス供給装置と、保護カバー
とを設けたことを特徴とするレーザ加工機。(1) In a laser processing machine that cuts sheet materials at high speed, a gas supply device that uniformly blows out an inert gas and a protective cover are provided on the upper surface of the cutting surface where the laser beam is focused. A laser processing machine featuring:
いて、レーザビームが集光する裁断面上部の面上に不活
性ガスを均一に噴出するガス供給装置と、保護カバーに
よって形成された裁断加工室内に不活性ガス雰囲気層の
区画を形成させる昇降式枠を設けたことを特徴とするレ
ーザ加工機。(2) In a laser processing machine that cuts sheet-like materials at high speed, cutting processing is performed using a gas supply device that uniformly sprays inert gas onto the upper surface of the cutting surface where the laser beam is focused, and a protective cover. A laser processing machine characterized by being provided with an elevating frame that forms sections of an inert gas atmosphere layer in a room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63044119A JPH0724947B2 (en) | 1988-02-29 | 1988-02-29 | Laser processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63044119A JPH0724947B2 (en) | 1988-02-29 | 1988-02-29 | Laser processing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01218792A true JPH01218792A (en) | 1989-08-31 |
| JPH0724947B2 JPH0724947B2 (en) | 1995-03-22 |
Family
ID=12682719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63044119A Expired - Lifetime JPH0724947B2 (en) | 1988-02-29 | 1988-02-29 | Laser processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724947B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110309059A1 (en) * | 2009-01-22 | 2011-12-22 | Cav Advanced Technologies Limited | Apparatus and method for perforating material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015116646B4 (en) | 2015-10-01 | 2023-12-07 | TRUMPF Werkzeugmaschinen SE + Co. KG | Method for loading and unloading a machine and machine for the separating processing of a plate-shaped metallic material, in particular for carrying out the method |
| CN105643115A (en) * | 2016-03-28 | 2016-06-08 | 天津宏光伟业激光科技有限公司 | Metal laser cutting machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639191A (en) * | 1979-09-10 | 1981-04-14 | Hitachi Ltd | Laser processing method |
| JPS6284888A (en) * | 1985-10-08 | 1987-04-18 | Toshiba Corp | Method and device for cutting welding by laser |
-
1988
- 1988-02-29 JP JP63044119A patent/JPH0724947B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639191A (en) * | 1979-09-10 | 1981-04-14 | Hitachi Ltd | Laser processing method |
| JPS6284888A (en) * | 1985-10-08 | 1987-04-18 | Toshiba Corp | Method and device for cutting welding by laser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110309059A1 (en) * | 2009-01-22 | 2011-12-22 | Cav Advanced Technologies Limited | Apparatus and method for perforating material |
| US8969759B2 (en) * | 2009-01-22 | 2015-03-03 | Cav Advanced Technologies Limited | Apparatus and method for perforating material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724947B2 (en) | 1995-03-22 |
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