DE2307096A1 - Fabric clamp for laser working - by air jets or sprung rollers or shoes - Google Patents

Fabric clamp for laser working - by air jets or sprung rollers or shoes

Info

Publication number
DE2307096A1
DE2307096A1 DE2307096A DE2307096A DE2307096A1 DE 2307096 A1 DE2307096 A1 DE 2307096A1 DE 2307096 A DE2307096 A DE 2307096A DE 2307096 A DE2307096 A DE 2307096A DE 2307096 A1 DE2307096 A1 DE 2307096A1
Authority
DE
Germany
Prior art keywords
shoes
air jets
sliding spacer
laser working
sliding
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
DE2307096A
Other languages
German (de)
Inventor
Josef Jenner
Theo Schreus
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.)
VER SEIDENWEBEREIEN AG
Original Assignee
VER SEIDENWEBEREIEN AG
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 VER SEIDENWEBEREIEN AG filed Critical VER SEIDENWEBEREIEN AG
Priority to DE2307096A priority Critical patent/DE2307096A1/en
Publication of DE2307096A1 publication Critical patent/DE2307096A1/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06HMARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/22Severing by heat or by chemical agents
    • 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
    • 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
    • B23K26/035Aligning the laser beam
    • B23K26/037Aligning the laser beam by pressing on the workpiece, e.g. pressing roller foot
    • 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
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • 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
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1462Nozzles; Features related to nozzles
    • B23K26/1488Means for protecting nozzles, e.g. the tip surface

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Designed for the cutting or welding of a fabric, paper or plastic film by a focussed laser beam, the fabric is held against the worktable by air jets bearing down, or by the use of sprung rollers or shoes to hold the flexible material in place to ensure accurate working.

Description

Gleitende Distanzhalterung. Sliding spacer bracket.

Strahlentechnische Verfahren werden heute in steigendem Masse ftlr die Verarbeitung (Schweissen, Schneiden, Lochen usw.) der verschiedensten Werkstoffe eingesetzt. So werden z.B. Metalle und Kunststoffe mittels Laserstrahlen j Light Amplification by Stimulated Emission of Radiation) aufbereitet und man geht neuerdings auch dazu Uber, Gewebe und Folien aller Art in diesen Arbeitsbereich einzubeziehen.Radiation technology methods are increasingly used today the processing (welding, cutting, punching, etc.) of the most varied of materials used. For example, metals and plastics are j Light Amplification by Stimulated Emission of Radiation) and one goes recently also to include Uber, tissues and foils of all kinds in this work area.

Diese verstärkten und gleichgerichteten Strahlen entwickeln bekanntlich ihre höchste Intensität und Wirkßamkeit in einem genau zu ermittelnden Brennpunkt. Um die Wirkung voll ausnutzen und z.B. ein Optimum an Schnittbreite oder Feinheit einer Schweißnaht zu erreichen, muß das WerkstUck genau in diesen Brennpunkt gebracht und während des gesamten Bearbeitungßvorganges darin gehalten werden. Besonders bei längeren Schnitten und Schweißnähten ist dieses eine der wichtigtsten Voraussetzungen flir den zufriedenstellenden Arbeitsablauf. Schon eine ganz geringfugige Höhenabweiohung und die dadurch entstehende Auswanderung aus dem Brennpunkt bedingt eine Veränderung der Strahlenintensität und damit auch des Arbeitserfolges.It is well known that these amplified and rectified rays develop its highest intensity and effectiveness in a precisely to be determined focus. In order to fully exploit the effect and e.g. an optimum of cutting width or fineness To achieve a weld seam, the workpiece must be brought exactly into this focal point and held therein during the entire machining process. Particularly This is one of the most important requirements for longer cuts and weld seams for the satisfactory workflow. Already a very slight deviation in altitude and the resulting emigration from the focus causes a change the radiation intensity and thus also the success of the work.

Bei lehr festen, nicht fbxiblen Materialien wie z.B. Metallblechen, ist dieses keine besondere Schwierigkeit. Solche Werkstücke liNgen glatt auf einer Unterlageaif.und der Bearbeitungsstrahl kann ohne Höhenabweichung darüber hinweg gefUhrt werden. Wesentlich anders werden die Verw hältnisse, wenn zlsich um so flexible Werkstoffe wie Gewebe, Vlies, Papier und thnls handelt. Diese schmiegen sich nicht.In the case of very solid, non-fusible materials such as sheet metal, this is not a particular difficulty. Such workpieces lie flat on one Underlay aif. And the processing beam can move over it without a height deviation be guided. The circumstances become significantly different if they are all the more flexible Materials such as fabric, fleece, paper and thnls. These do not nestle.

unbedingt an eine Unterlage an und verändern während der Bearbeitung leicht ihre Lage. Selbst bei einer einwandfrei glatten und ebenen Unterlage können durch Blasenbildung, durch Rniffe, Knicke oder hnl. unverheidbare Distanzunterschiede entstehen.be sure to attach to a document and change it during processing easily their location. Even with a perfectly smooth and level surface, you can by blistering, by grooves, kinks or similar. inevitable differences in distance develop.

Heute versucht maS sich durch die Benutzung von VaKuustischen zu helfen. Das durch entsprechende Gebläse auf diesen Tischen erzeugte Vakuum soll derartige flexible Materialien festsauren und in einer bestimmten horizontalen Ebene halten. Bei luftundurchlässigen Werkstoffen wie Papier hat dieses Verfahren bis zu bestimmten Dimensionen Erfolg. Aber bei vielen Werstoffen, wie z.t. Geweben und Vliesen, bei denen es sich um mehr oder weniger luftdurchlässie Gebilde handelt oder auch in den Fällen, in denen die Ausschnitte beträchtliche Dimensionen haben oder wenn es sich um mehrlagige Arbeitsstücke handelt, müssen solche Luftmengen aufgewendet werden, daß das Verfahren aus praktischen oder finanziellen Gründen nicht mehr durchführbar ist.Today maS tries to help itself through the use of VaKuustic tables. The vacuum generated by appropriate blowers on these tables should be such solid acidic flexible materials and in a certain horizontal Keep level. In the case of air-impermeable materials such as paper, this process has success up to certain dimensions. But with many materials, such as Tissues and nonwovens, which are more or less air-permeable structures or in those cases in which the sections have considerable dimensions or when it comes to multi-layer work pieces, such amounts of air must be expended that the procedure for practical or financial reasons is no longer feasible.

Erfindungsgemäß kann in solchen Fällen das Werkstück durch Einwirkung auf die Oberfläche in der gewurischten horizontalen Ebene gehalten werden. Diese Einwirkung kann entweder durch Preßluft, oder mechanisch durch Druckrollen oder Gleitschuhe erfolgen.According to the invention, in such cases, the workpiece can be acted upon be held on the surface in the wiped horizontal plane. These Action can either by compressed air, or mechanically by pressure rollers or Slide shoes take place.

In Abb. 1 stellt (1) den Strahlenkopf dar, aus dem der Strahl (21 sich bei ( 2a) zum Brennpunkt vereinigt. Das Werkstück ( 5 ) wir(Ldurch die in den hohlen Ring (3> eingeführte und aus den Wsen 4) ausgepreßte Preßluft in seiner Lage gehalten.In Fig. 1 (1) represents the jet head from which the jet (21 unites at (2a) to the focal point. The workpiece (5) we (Lthrough the in the hollow ring (3> introduced and from the Wsen 4) compressed air in his Location held.

Da der Preßluftring (3) mit dem Strahlenkopf verbunden ist, wandert er mit diesem weiter und das Werkstück wird im Bereich der Düse stets flach aufliegen und im Brennpunkt der Strahleneinwirkung verbleiben. Abb. 2 zeigt die Anordnung der Dses (4) ringförmig um den Strahlenkopf Selbstverständlich kann und muß diese Anordnung ebenso wie bei den später gezeigten mechanischen Andruckmitteln 3e nach den Erfordernissen des Verarbeitungaganges und den Eigenschaften des Werkstückes variiert werden.Since the compressed air ring (3) is connected to the jet head, it migrates he continues with this and the workpiece will always lie flat in the area of the nozzle and remain in the focus of the radiation exposure. Fig. 2 shows the arrangement The Dses (4) ring-shaped around the radiation head Of course, this can and must Arrangement as in the case of the mechanical pressure means 3e shown later the requirements of the processing process and the properties of the workpiece can be varied.

Abb. 3 zeigt die gleiche Anordnung des Strahlenganges wie Abb. 1 An die Stelle der Preßluft treten die Druckrollen (6), die ebenso wie die Düsen beliebig häufig um den Strahlenkopf angeordnet r7 werden können ( Abb. 4.). Andruckstärke, Rollenbreite und Ausgestaltung der Rollen sind von der Beschaffenheit des Werkstücks abhänging.Fig. 3 shows the same arrangement of the beam path as Fig. 1 An the place of the compressed air are the pressure rollers (6), which as well as the nozzles are arbitrary can often be arranged around the radiation head (Fig. 4). Pressure strength, Roll width and configuration of the rolls depend on the nature of the workpiece depending.

Abb. 5 zeigt einen Gleitschuh (7), der in der Mitte einen Durchgang für das Strahlenbündel hat ( Abb 6.) . Abb. 7.Fig. 5 shows a sliding shoe (7), the one in the middle Passage for the beam (Fig 6.). Fig. 7.

und 8. zeigen verschiedene Ausfwirungsbeispiele für einen derartigen Gleitschuh (7) , der nach Bedarf auch mit Rollen (6) auszustatten ist.and 8. show various exemplary embodiments of such a system Slide shoe (7), which can also be equipped with rollers (6) if required.

Rolle (6) und Gleitschuh (7) sind in den meisten Fällen zur Regulierbarkeit der Andruckstärke federnd zu lagern und nötigenfalls in eine scltngende Auf- und Abbewegung zu versetzen.Roller (6) and sliding shoe (7) are in most cases for adjustability to the pressure force to be resiliently stored and, if necessary, in a subsequent up and down To move downward.

Es hat sich auch als notwendig erwiesen, z.B. bei kurvenreichen Arbeitsausführungen die Andruckelemente schwenkbar und ihre Oberfläche griffig zu gestalten.It has also proven to be necessary, e.g. for winding work executions the pressure elements can be pivoted and their surface is easy to grip.

Der Vorteil dieser gleitenden Distanzhalterung ist neben der großen Wirtuchaftlichkeit besonders dadurch gegeben, daß das Ysrkstilck ohne Wtlcksicht auf seine Luftdurchlässigkeit oder seine Felexibilität auch bei mehreren Lagen oder bei profilierten SchnittablEufeR stets im Brennpunkt des Strahlenbündels gehalten werden kann.The advantage of this sliding spacer bracket is besides the great Economic character given by the fact that the Ysrkstilck without consideration on its air permeability or its flexibility even with several layers or always kept in the focal point of the beam in the case of profiled cutting sequences can be.

Claims (7)

Schutzansprüche :Protection claims: Gleitende Distanzhalterung dadurch gekennzeichnet, daß das WerkstUck (5) durch Einwirkung auf seine Oberfläche fest auf seine Unterlage gepaßt wird.Sliding spacer, characterized in that the workpiece (5) is tightly fitted to its base by acting on its surface. 2.) Gleitende Distanzhalterung wie Anspruch 1 dadurch gekennzeichnet, daß die einwirkung auf die Oberfläche durch aus Düsen austretende Preßluft bewirkt wird(4). 2.) Sliding spacer bracket as in claim 1, characterized in that that the action on the surface is caused by compressed air emerging from nozzles becomes (4). 3.) Gleitende Distanzhaltaung wie Anspruch 1 dadurch gekennzeichnet, daß die Einwirkung auf die Oberfläche durch Druckrollen bewirkt wird (6). 3.) Sliding spacer as in claim 1, characterized in that that the action on the surface is effected by pressure rollers (6). 4.) Gleitende Distanzhalterung wie Anspruch 1 dadurch gekennzeichnet, daß die Einwirkung auf die Oberfläche durch einen Gleitschuh (7) bewirkt wird. 4.) Sliding spacer bracket as in claim 1, characterized in that that the action on the surface is effected by a sliding shoe (7). 5.) Gleitende Distanzhalterung wie Anspruch 1 dadurch gekennzeichnet, daß die Einwirkung auf die Oberfläche durch eine Kombination der Ansprüche 2 - 4 erfolgt.5.) Sliding spacer bracket as in claim 1, characterized in that that the action on the surface by a combination of claims 2-4 he follows. 6.) Gleitende Distanzhalterung wie Anspruch 1 dadurch gekennzeichnet, daß Druckrollen (6) oder Gleitschuh (7) federnd gelagert sind. 6.) Sliding spacer bracket as in claim 1, characterized in that that pressure rollers (6) or slide shoe (7) are resiliently mounted. 7.) Gleitende Distanzhalterung wie Anspruch 1 dadurch gekennzeichnet, daß Druckrollen (6) oder Cleitschuh(7) in schwingende Auf - und Abbewegung versetzt werden.7.) Sliding spacer bracket as in claim 1, characterized in that that pressure rollers (6) or Cleitschuh (7) set in a swinging up and down movement will.
DE2307096A 1973-02-14 1973-02-14 Fabric clamp for laser working - by air jets or sprung rollers or shoes Pending DE2307096A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2307096A DE2307096A1 (en) 1973-02-14 1973-02-14 Fabric clamp for laser working - by air jets or sprung rollers or shoes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2307096A DE2307096A1 (en) 1973-02-14 1973-02-14 Fabric clamp for laser working - by air jets or sprung rollers or shoes

Publications (1)

Publication Number Publication Date
DE2307096A1 true DE2307096A1 (en) 1974-08-22

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DE2307096A Pending DE2307096A1 (en) 1973-02-14 1973-02-14 Fabric clamp for laser working - by air jets or sprung rollers or shoes

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315692A (en) * 1978-05-16 1982-02-16 International Standard Electric Corporation Mask alignment for semiconductor processing
FR2500349A1 (en) * 1981-02-24 1982-08-27 Amada Co Ltd LASER BEAM MACHINING MACHINE WITH PNEUMATIC SUPPORT
US4521114A (en) * 1979-05-11 1985-06-04 Tre Semiconductor Equipment Corporation Single lens repeater
WO1997013023A1 (en) * 1995-10-04 1997-04-10 Vaupel Textilmaschinen Gmbh & Co. Kg Device for producing preferably patterned textile strips, in particular strips of labels, from a broad web comprising meltable material
FR2778590A1 (en) * 1998-05-18 1999-11-19 Alsthom Gec Installation for the laser welding of overlapping components
EP3797919A3 (en) * 2019-09-30 2021-05-05 Robert Bosch GmbH Microwelding method for flexible and thin films, e.g. for use in electric and electronic devices

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315692A (en) * 1978-05-16 1982-02-16 International Standard Electric Corporation Mask alignment for semiconductor processing
US4521114A (en) * 1979-05-11 1985-06-04 Tre Semiconductor Equipment Corporation Single lens repeater
FR2500349A1 (en) * 1981-02-24 1982-08-27 Amada Co Ltd LASER BEAM MACHINING MACHINE WITH PNEUMATIC SUPPORT
WO1997013023A1 (en) * 1995-10-04 1997-04-10 Vaupel Textilmaschinen Gmbh & Co. Kg Device for producing preferably patterned textile strips, in particular strips of labels, from a broad web comprising meltable material
FR2778590A1 (en) * 1998-05-18 1999-11-19 Alsthom Gec Installation for the laser welding of overlapping components
WO1999059763A1 (en) * 1998-05-18 1999-11-25 Alstom Holdings Installation for laser welding of overlapping parts
US6274843B1 (en) 1998-05-18 2001-08-14 Alstom Holdings Installation for laser welding of overlapping parts
AU745935B2 (en) * 1998-05-18 2002-04-11 Alstom Transport Technologies Installation for laser welding of overlapping parts
EP3797919A3 (en) * 2019-09-30 2021-05-05 Robert Bosch GmbH Microwelding method for flexible and thin films, e.g. for use in electric and electronic devices

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