WO2023240299A1 - Traceur laser comportant un élément d'aspiration accouplé - Google Patents

Traceur laser comportant un élément d'aspiration accouplé Download PDF

Info

Publication number
WO2023240299A1
WO2023240299A1 PCT/AT2023/060175 AT2023060175W WO2023240299A1 WO 2023240299 A1 WO2023240299 A1 WO 2023240299A1 AT 2023060175 W AT2023060175 W AT 2023060175W WO 2023240299 A1 WO2023240299 A1 WO 2023240299A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
laser
channel
laser plotter
processing table
Prior art date
Application number
PCT/AT2023/060175
Other languages
German (de)
English (en)
Inventor
Matthias HÖRL
Original Assignee
Trotec Laser Gmbh
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 Trotec Laser Gmbh filed Critical Trotec Laser Gmbh
Publication of WO2023240299A1 publication Critical patent/WO2023240299A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working 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
    • B23K26/142—Working 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 for the removal of by-products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
    • B08B15/005—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops comprising a stationary main duct with one or more branch units, the branch units being freely movable along a sealed longitudinal slit in the main duct
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working 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
    • B23K26/1435—Working 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 involving specially adapted flow control means
    • B23K26/1437—Working 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 involving specially adapted flow control means for flow rate control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working 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
    • B23K26/1435—Working 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 involving specially adapted flow control means
    • B23K26/1438—Working 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 involving specially adapted flow control means for directional control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working 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
    • B23K26/1462—Nozzles; Features related to nozzles
    • B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
    • B23K26/147—Features outside the nozzle for feeding the fluid stream towards the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting

Definitions

  • the invention relates to a laser plotter for processing a job for cutting, engraving, marking and/or labeling a preferably flat workpiece, as described in claims 1 and 16.
  • Flatbed laser systems are known from the prior art, which are equipped with a belt-driven carriage on which a focusing unit or laser head is also adjustable.
  • Flat workpieces such as paper, plates, textiles, etc. are preferably processed using a laser, in particular a laser beam.
  • Suction devices are arranged so that the exhaust gases or vapors generated during processing can be extracted.
  • a suction bar is arranged between the carriage and a processing surface of the processing space for suctioning off the exhaust gases or vapors produced during the processing of the workpiece by a laser beam, with several suction openings of the Suction bar to generate a horizontal suction stream are arranged or aligned parallel to the processing surface.
  • the suction bar is L-shaped and connected to the carriage.
  • a suction hose is arranged in the area of the focusing unit or laser head, which is moved with the focusing unit or laser head.
  • the disadvantage here is that when using a suction hose on the focusing unit or laser head, the mobility, in particular the travel speed of the focusing unit or laser head with the attached suction hose is restricted. Furthermore, it can happen that with direct Arrangement of the suction hose on the focusing unit or laser head means that gases and particles with high temperatures can get directly into the suction hose, resulting in an increased risk of fire.
  • KR 20190024654 A and KR 20160101448 A a processing head or focusing head is known in which a cross flow is generated in order to prevent the smoke or exhaust gases generated on the tool from reaching the interior of the processing head.
  • no toxic exhaust gases or smoke are sucked out, but rather the air flowing out on the opposite side is sucked back in so that no smoke or exhaust gases can enter through the opening.
  • the object of the invention is to create a laser plotter in which, on the one hand, the above-mentioned disadvantages are avoided and, on the other hand, to improve the suction performance.
  • the object of the invention is achieved by a laser plotter in which the suction bar is connected to a movable cassette element coupled to the carriage, with at least one preferably two suction lines of the cassette element being connected to a suction element, in particular suction torus, attached to the focusing unit or laser head.
  • the advantage here is that the arrangement of the suction element directly on the laser head achieves optimal suction of the gases that occur. Due to the preferred round design of the suction element, a constant suction power is generated around the laser head, in particular around the nozzle, so that any gases or smoke that occur are sucked out by the suction element. Furthermore, the special arrangement of the cassette element ensures that the suction element is connected to the suction bar over the entire width. This means that the suction power is optimally transferred from the suction bar to the suction element.
  • suction bar is attached or integrated on or in the carriage. This ensures that there is always a constant Suction performance is guaranteed, regardless of where the carriage with the laser head or focusing unit is located.
  • the suction bar can be arranged on the carriage as well as under the carriage or directly in the carriage.
  • An advantage is a design in which the suction bar is arranged between the processing table, in particular the surface of the inserted workpiece, and the carriage or in the carriage, preferably in the lower region of the processing table. This ensures that the suction lines for connecting the suction bar, in particular the cassette element, with the suction element can be made as short and compact as possible. This also ensures that the focusing unit or the laser head can move over the entire length of the suction bar without any loss of speed.
  • a design in which the suction bar forms a longitudinal channel which has a suction channel or several suction openings transversely to the longitudinal direction is advantageous. This ensures that the cassette element can be easily connected to the suction channel or the suction openings. At the same time, it is achieved that suction can be carried out easily at one end of the suction bar due to the longitudinal channel.
  • suction openings or the suction channel are preferably designed or positioned to generate a horizontal suction stream aligned parallel to the processing table. This ensures that the cassette element can be easily connected.
  • An advantage is a design in which the suction channel or the suction openings of the suction bar are closed or covered with a cover tape and only the cassette element is designed to establish a flow connection with the suction openings or suction channel. This ensures that air or gases or particles can only be sucked in in that area of the cassette element of the suction channel or the suction openings, whereby the suction power is optimally used. This means that a lower suction power can be used, since the suction no longer has to exist over the entire suction bar, but only in the area of the cassette element from the longitudinal channel to the suction channel or
  • Suction openings are required. This means that the suction power is transferred to the cassette element and subsequently concentrated on the suction element. It is also possible for the cover tape to be adjusted accordingly when the cassette element is adjusted.
  • the cover tape is detachably attached to the ends of the suction bar.
  • a design in which the cassette element (26) deflects the cover tape (35) is advantageous. This ensures that the cassette element can be adjusted over the entire length of the suction bar.
  • the cover tape is lifted off the suction bar using deflection rollers, so that an air guide channel can be arranged to connect the suction bar to the cassette element.
  • deflection rollers Preferably, four deflection rollers are used, with at least two of the deflection rollers being shaped or offering adjustment options so that optimal guidance of the cover tape is possible.
  • the air guide channel is designed in the cassette element in the direction of flow for suction. This ensures that the transition of the sucked in air or gases or particles takes place in the flow direction of the suction, whereby the flow resistance is reduced and thus a better suction performance is achieved.
  • the suction bar is connected to a suction on one side, with a filter for small parts and fine parts preferably being arranged. This ensures that a suction flow is generated in the suction bar, particularly in the longitudinal channel of the suction bar.
  • the suction flow also has an effect on the suction openings or on the suction channel, so that a suction flow is generated on the suction element on the laser head or focusing unit for suctioning off the gases or air or particles via the cassette element and the suction lines.
  • An advantage is a design in which the suction element on the laser head or focusing unit has a swirl channel for distributing the air around the circumference, which is or are connected to the suction line(s). This ensures that a consistent suction performance is created around the nozzle of the laser head or focusing unit.
  • an air guide disc is arranged on the suction element and has a defined distance from the material surface of the workpiece. This ensures that the air flow is concentrated in a radially uniform manner on the center of the air guide disc, so that any gases and particles that arise are completely sucked out before they can get into the environment.
  • the air guide disc has an opening in the center that extends around the nozzle. Due to the distance between the opening and the nozzle, the suction performance can be influenced, i.e. that with a larger distance the pressure difference and thus the flow speed are lower, while at the same time higher volumes and therefore more gases or particles can be absorbed, and also light materials or . Workpieces are not sucked in, rather than keeping the distance as small as possible. At a small distance, a high suction speed is achieved in a very concentrated manner around the nozzle, so that suction can be carried out at very specific points and particles or gases are quickly removed from the source.
  • a design is advantageous in which the nozzle of the focusing unit and the air guide disc form a variable distance, which enables or forms a constant or radially variable inflow behavior between the material surface and the air guide disc. This ensures that, depending on the application, the air guide disc can be adjusted for optimal extraction.
  • a design in which the suction bar is formed by a suction hose which is connected to the suction element via the suction lines is advantageous.
  • the laser head simply needs to be equipped with a suction element, with the suction element then being connected to the suction hose via the suction lines.
  • a type of cassette element is used to connect the suction lines to the suction hose, but this can also be omitted.
  • the object of the invention is also achieved by a laser plotter, in which the processing table has at least one or more suction units arranged over the width and length of the processing table, on which one or more support elements for positioning the workpiece are placed, with a suction unit is formed from one to several flow channels arranged next to one another, the flow channels being connected to a suction control on the side area of the processing table and to a supply air control in the opposite area of the suction control.
  • the advantage here is that optimal table suction is created in which individual areas can be controlled and the entire processing table does not necessarily have to be vacuumed. This means that the necessary suction power provided by the suction unit can be reduced.
  • a power converter can be used in a flow channel, which is adapted for various table inserts or support elements, such as slats, grids, honeycombs. This ensures that a wide variety of table inserts or support elements can be taken into account, so that optimal suction is achieved in the active flow channels.
  • An advantage is a design in which the suction unit is connected to a distribution channel, which is then connected to the suction via suction lines. This ensures that a simple connection of the flow channels of the suction unit to the suction is made possible.
  • each flow channel can be shut off with a flap control and/or in the distribution channel the entire suction unit can be shut off via a flap control. This ensures that the individual Flow channels or the suction unit can be activated or deactivated so that only those flow channels or suction units that are adjacent to the placed workpiece are used. The workpiece can be automatically recognized so that only the adjacent flow channels or the suction units are activated.
  • An advantage is a design in which the suction units, in particular the flow channels, are aligned transversely, i.e. in the direction of the width of the processing table, or longitudinally. This ensures that the suction control is arranged on the edge, creating easy accessibility.
  • the supply air controls are preferably arranged in the middle area of the processing table, or in the opposite area of the suction control, which has the advantage that they are usually simple in structure and therefore do not have to be constantly checked for maintenance purposes.
  • the design is advantageous in which the support element for the processing table is designed as slats, grids, honeycombs. This ensures that a correspondingly advantageous support element can be used on the workpiece to be machined.
  • Fig. 1 is a diagrammatic representation of a laser plotter when processing a workpiece with the safety shield extended, in a simplified, schematic representation
  • Fig. 2 is a diagrammatic representation of the laser plotter in the idle state and the laser head or focusing unit is moved, in a simplified, schematic representation;
  • FIG. 3 shows a simplified view of the laser head or focusing unit, in a diagrammatic representation
  • FIG. 4 shows a sectional view through the laser head or focusing unit for a detailed representation of a cassette element for connection to a suction bar, in a simplified, schematic representation;
  • FIG. 5 shows a further sectional view through the laser head or focusing unit for a detailed representation of the suction element on the laser head or focusing unit, in a simplified, schematic representation
  • FIG. 6 shows a graphical detailed representation of the laser head or focusing unit without a processing table, in a simplified, schematic representation
  • FIG. 7 shows a further graphical detailed representation from below of the laser head or focusing unit without a processing table, in a simplified, schematic representation
  • Fig. 8 is a diagrammatic representation of the table suction with partially placed support elements without the housing of the laser plotter, in a simplified, schematic representation;
  • FIG. 9 shows a further diagrammatic representation of the table suction according to FIG. 8, in which a section through a flow channel is shown, in a simplified, schematic representation;
  • Fig. 10 is a side view of the table suction, in a simplified, schematic representation
  • FIG. 11 shows a sectional view of the table suction according to AA in FIG. 10, in a simplified, schematic representation
  • 1 to 1 1 shows a laser plotter 1, in particular a flatbed laser plotter 1, for processing workpieces 3, the laser plotter 1 preferably being used to process a job 2 for cutting, engraving, marking and/or labeling the preferably flat workpiece 3 is trained.
  • the laser plotter 1 has a housing 4 in which all elements, such as drives, electronics, laser source, etc. are integrated, so that the laser plotter 1 can be operated as a stand-alone device.
  • the laser plotter 1 has at least one processing space 5 for positioning the workpiece 3 on a processing surface 6 of a processing table 7.
  • the laser plotter 1 has at least one radiation source 8 in the form of a laser 9 and a control unit 10 for controlling the carriage 11, which is preferably operated via a belt drive, with a laser head 12 or focusing unit 12 arranged movably thereon.
  • the control unit 10 is also responsible for other functions, such as suction, positioning, etc.
  • the laser plotter 1 is or can be equipped with connections or lines 13 for power supply or for connection to the intranet and/or Internet 14, as shown schematically. It is possible for the connection to external components 15, such as a laptop 15a or computer, an automatic feed unit, a conveyor belt, a removal robot, etc., to be established via an interface or line or wirelessly, directly or via the intranet and/or Internet 14 , in particular a cloud, or via WiFi or Bluetooth, so that data for processing the workpiece 3 can be transmitted from the external components 15, in particular the laptop 15a.
  • external components 15 such as a laptop 15a or computer, an automatic feed unit, a conveyor belt, a removal robot, etc.
  • the workpiece 3 is manually inserted and removed by an operator on the processing table 7 in the processing room 5, with text and/or graphics 16 or a job 2, such as this, for example was created on the laptop 15a, is started via an operating unit 17 on the laser plotter 1 or directly from the external component 15, in particular laptop 15a.
  • the detailed description of the function of the laser plotter 1, as well as the processing of the workpiece 3, is omitted, since such laser plotters 1 are used for this purpose are already known from the prior art. It is merely pointed out that it is a laser plotter 1 for processing so-called jobs 2 or graphics and/or text 16 for cutting, engraving, marking and/or labeling a preferably flat blank 3, in particular workpiece 3.
  • the laser plotter 1 is preferably used for workpiece thicknesses of up to 50 mm. Paper, panels and textiles are preferably processed as workpieces 3 or blanks 3. What is essential in such laser plotters 1 is that they have a processing space 8, in which a carriage 11 operated with a belt drive with a movable focusing unit 12 or laser head 12 is moved or moved. For this purpose, from the radiation source 8, in particular laser 9, as shown schematically, a laser beam 18 is directed via deflection elements (not shown) to the focusing unit or laser head 12, from which the laser beam 18 is deflected and focused in the direction of the workpiece 3, so that the blank 3 or workpiece 3 is processed according to job 2 or graphic and/or text 16 loaded into the control unit 10.
  • the laser plotter 1 is equipped with a safety shield 20, which is activated and extended during a processing process as can be seen in FIG. This ensures that any reflected laser beams 18 can be collected. Since when the different materials are processed by the laser beam 18, exhaust gases or vapors 19, in particular smoke or gases or particles 19, are produced during the evaporation of material, it is necessary that the laser plotter 1 has an appropriate suction system.
  • the head suction 21, as can be seen in Figures 3 to 7, consists of a suction element 23, which is attached to the laser head 12 or focusing unit 12, and preferably a suction bar 24, which is coupled to the carriage 11 or is carried along.
  • the suction element 23 is connected to a cassette element 26 via at least one, preferably two, suction lines 25, the cassette element 26 being coupled in motion to the suction bar 24, so that the gases 19 or particles 19 picked up and sucked out by the suction element 23 are transferred to the suction bar 24, ie that a suction flow is formed in the suction channel or suction bar 24, this exhaust gas flow acting on the suction element 23 via the suction lines 25, so that the resulting gases 19 or particles 19 are sucked by the laser beam 18 from the suction element 23 on the laser head 12 and are then transported to the suction bar 24.
  • two suction lines 25 are connected to the suction element 23 on opposite sides, since this allows an optimal suction flow to be generated over the entire circumference of the suction element 23.
  • an air guide disc 27 is preferably attached to the suction element 23 or to the laser head 12, which has an opening 28 in the center for or around a nozzle 29 of the laser head 12, as can be seen in FIG. It is possible that the suction behavior of the suction element 23 is influenced due to the opening 28 of the air guide disc 27, so that different air guide discs 27 with different sized openings 28 are used.
  • the suction element 23 has a swirl channel 30 which is connected to connections 31 for the suction lines 25. The swirl channel 30 is opened downwards, i.e.
  • the suction element 23 on the laser head 12 or focusing unit 12 has a swirl channel 30 for distributing the air on the circumference, which is or are connected to the suction line or lines 25 and thus the gases or particles 19 are passed on to the suction bar 24 via the suction lines 25.
  • the formation of the swirl channel 30 ensures that a constant suction flow is generated on the circumference around the nozzle 29.
  • the connections 31 for the swirl channel 30 are arranged laterally aligned with the swirl channel 30, so that an aligned suction flow from the swirl channel 30 into the connections 31 is created.
  • the suction line 25 is connected to the cassette element 26.
  • the suction bar 24 is arranged between the processing table 7 and the carriage 11 or preferably in the carriage 11, so that a simple and short, compact connection of the suction element 23 via the suction lines 25 is achieved.
  • the suction bar 24 can also have a different position, for example on the carriage 11, so that the suction lines 25 must be designed accordingly.
  • the suction bar 24 is designed in such a way that the suction bar 24 forms a longitudinal channel 33 which has a Suction channel 34, as shown schematically in FIG. 2, or has several suction openings (not shown) transversely to the longitudinal direction.
  • the suction channel 34 or the suction openings are closed or covered with a cover tape 35 and only the cassette element 26 is designed to establish a flow connection with the suction openings or suction channel 34. That is, in the cassette element 26, the cover tape 35 is guided over deflection rollers 36 in such a way that the cover tape 35 is lifted or deflected from the suction channel 34 or suction openings, so that an air guide channel is between the suction bar 24 and the lifted cover tape 35 in the cassette element 26 37, which is preferably designed in the flow direction of the suction bar 24, is arranged for the suction lines 25.
  • the air guide duct 37 is connected to the suction line 25, so that the occurring gases or particles 19, as shown schematically in Figure 3, are sucked in via the suction element 23, in particular the opening 28 of the air guide disc 27 and the swirl channel 30, and via the suction line 25 to the air guide duct 37 and from there via the suction duct 24 or suction opening into the longitudinal channel 33 of the suction bar 24.
  • the suction bar 24 is connected on one side to a suction 38, in particular a suction pump 38, which sucks the air 39 and/or gases 19 or particles 19 out of the lines or channels, so that there is a negative pressure in the lines or channels arises.
  • the suction bar 24 preferably has a supply air control 40, in particular a controllable valve, on the opposite side to the suction 38.
  • the supply air control 40 serves to ensure that, in particular fresh, air 39 is sucked into the longitudinal channel 33 of the suction bar 24 to generate an initial air flow 41, if this is desired.
  • the supply air control 40 which is designed in the form of a controllable valve, can also prevent the entry of air 39 or allow any amount of air 39 to flow in.
  • the suction 38 creates a negative pressure in the longitudinal channel 33, so that on the one hand air 39 is sucked in via the supply air control 40 and on the other hand air or gases or particles 19 are sucked in via the suction element 23, so that the gases or particles 19 are mixed with the Mix the sucked in air 39 in the longitudinal channel 33 when the supply air control 40 for sucking in air 39 is activated or set. Otherwise, the gases or particles 19 or air 39 are only sucked in via the suction element 23 via the suction 38 when the supply air control 40 is blocked or closed. Furthermore, the guidance or deflection of the laser beam 18 is indicated schematically in FIG of the carriage 11 runs. This ensures that the laser beam 18 is completely closed and therefore there is no safety risk.
  • the laser head 12 is provided with a cover 12a.
  • the suction bar 24 is attached or integrated on the carriage 11 or in the carriage 11, with the suction channel 34 or the suction openings being formed horizontally to the processing table 7, so that a horizontal suction flow is generated, which flows via the air guide channel 37 and the associated suction lines 25 are guided to the suction element 23.
  • the air guide disc 27 is arranged or attached to the suction element 23, since this allows precise control of the suction 38 of the gases 19 via the opening 38 of the air guide disc 27 used.
  • the air guide disc 27 is guided to a defined distance from the material surface of the workpiece 7. The distance can be adjusted automatically, for example via a distance measuring device, or manually, for example via a distance measurement device.
  • the laser head 12 or focusing unit 12 is attached or connected to a holding device 42 for the carriage 11, for which purpose the cassette element 26 is attached to the holding device 42 and/or to the laser head 12, so that by adjusting of the laser head 12, the cassette element 26 is also adjusted, i.e. that the cassette element 26 with the laser head 12 is moved along the carriage 11 and due to the deflection rollers 36 in the cassette element 26, the cover tape 35 is lifted off the suction channel 34 and applied accordingly, so that the air guide channel 37 the sucked gases or particles 19 can be transferred from the suction element 23 into the longitudinal channel 33.
  • the laser plotter 1 comprises a table suction 22, as can be seen in FIGS. 8 to 11, only the essential parts or components of the table suction 22 with the processing table 7 being shown and the housing 4 and other components of the laser plotter 1 not being shown .
  • the processing table 7, in particular the processing surface 6 of the processing table 7, is formed by support elements 43, which are, for example Slats, grids or honeycombs are formed, but due to the simplified representation these were shown over the entire surface without a slat, grid or honeycomb pattern.
  • the table suction 22 has at least one or more suction units 44 arranged over the width and length of the processing table 7, the processing table 7 in the illustrated embodiment being equipped with four suction units 44 which are arranged below the preferably four support elements 43, i.e. that the processing table 7 has at least one or more, in particular four, suction units 44 arranged across the width and length of the processing table, on which one or more, preferably four, support elements 43 for positioning the workpiece 3 is or are placed.
  • a suction unit 44 consists of one or more flow channels 45 arranged next to one another, with the flow channels 45 being separated or limited by limiting elements 46 in the exemplary embodiment shown.
  • a flow channel 45 or the flow channels 45 are connected to a suction control 47 on the side area of the processing table 7.
  • the flow channels 45 of the suction units 44 are connected to a supply air control 48.
  • the flow channels 45 are only formed up to the middle of the processing table 7, so that two suction units 44 extend across the width of the processing table 7, with the supply air control 48 for both suction units 44 being in the middle of the processing table 7 and the suction control 47 on the Sides of the processing table 7 are arranged, as can best be seen from Fig. 8.
  • the processing table 7 has four suction units 44, in which the suction control 47 is arranged on the edge or on the sides of the processing table 7 and in The supply air control 48 for the four suction units 44 is arranged in the middle of the processing table 7.
  • a design is also possible in which only one or two or more suction units 44 are arranged.
  • the suction units 44 are further connected to a distribution channel 49, which is then connected via suction lines 50 to a suction 51, in particular a suction pump 51, as shown schematically in FIG. 8.
  • the suction 51 removes the air from the suction lines 50, the distribution channel 49 and the Flow channel 45 is sucked off, so that a negative pressure is created in the lines.
  • the workpiece 3 is sucked and held on the processing table 7 and, on the other hand, gases or particles 19 that occur are also sucked out.
  • each flow channel 45 is equipped with a flap control 52 so that each flow channel 45 can be activated individually or in groups, that is, by activating one or more flap controls 52, the flow channel or channels 45 are released, so that a suction flow from the suction 51 the flow channels 45 is generated.
  • the flap control 52 it is also possible for the flap control 52 to be arranged in the distribution channel 49, so that all flow channels 45 of a suction unit 44, in particular which are connected to the distribution channel 49 via the elbow, can be activated via the flap control 52.
  • the supply air control 48 is designed to generate an initial air flow in the individual flow channels 45, with the control taking place for each individual flow channel 45 or for the entire suction unit 44, i.e. that to generate an initial air flow on the opposite side of the suction 51
  • Flow channels 45 are supplied with air, so that a constant air flow is generated from the supply air control 48 to the suction 51.
  • each flow channel 45 can be equipped with a flap or valve of the supply air control 48, so that the air can flow into the flow channel 45 by activating the flap or valve.
  • all flow channels 45 of a suction unit 44 can be activated as a whole system by a flap or a valve, i.e. the flow channels 45 are not controlled individually.
  • a power converter 53 In order to be able to generate an optimal initial flow in a flow channel 45, it is possible for a power converter 53 to be inserted or used in the flow channel 45, as can be seen in FIGS. 9 and 11.
  • appropriately adapted power converters 53 can be inserted or used for the different support elements 43 or table inserts, such as slats, grids, honeycombs.
  • the power converter 53 is designed in such a way that a channel 54 is created along the flow channel 45 from the supply air control 48 to the suction control 47 to form the initial flow, with suction openings 55 being arranged at certain intervals on the power converter 53 to suck in air or gases 19 or particles 19 to be able to suck from the area of the support element 53.
  • the suction openings are 55 preferably rib-like in the direction of the support element 43, whereby the suction openings 55 are covered.
  • the generation of the flows, in particular the initial flow and/or suction flow is controlled via the suction 51, in particular the suction pump 51, that is, a negative pressure is built up in the flow channel 45 by the suction 51, so that air and/or gases 19 are removed from the Support elements 43 and/or are sucked in via the supply air control 48 to form an initial flow.
  • the processing table 7 has at least one or more suction units 44 arranged over the width and length of the processing table 7, on which one or more support elements 43 for positioning the workpiece 3 is or are placed, with a suction unit 44 consisting of one to several flow channels 45 arranged next to one another are formed, the flow channels 45 being connected to a suction control 47 on the side region of the processing table 7 and to a supply air control 48 in the opposite region of the suction control 47.
  • a corresponding suction flow can be generated via the flow channels 45, which can be optimally adapted to the placed workpiece 3 or to the current position of the laser head 12 by the design of the flow channels 45, i.e.
  • suction bar 24 is replaced by a suction hose (not shown), which is preferably attached and carried along on the laser head 12 or focusing unit 12.
  • suction element 23 and preferably the air guide disc 27 are in turn attached to the laser head 12 or focusing unit 12, with the suction lines 25 of the suction element 23 now being connected to the suction hose.
  • a cassette element 26 can in turn be arranged that forms the connection of the suction hose to the suction lines 25.
  • the suction hose is designed in such a way that it can be moved back and forth on the carriage 11 with the laser head 12 or the focusing unit 12.
  • the carriage 11 can also move over the entire processing table 7. For the sake of order, let us finally point out that for the better

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un traceur laser (1) utilisé pour l'exécution d'une tâche (16) pour la coupe, la gravure, le marquage et/ou l'inscription sur une pièce (3) de préférence plane, qui comprend au moins un boîtier (4) comportant une chambre d'usinage (5) pour positionner une pièce (3) sur une table d'usinage (7), celle-ci comportant au moins une source de rayonnement (8) sous la forme d'un laser (9) et une unité de commande (10) pour commander le chariot (11) entraîné de préférence par l'intermédiaire d'un entraînement à courroie avec une unité de focalisation (12) ou une tête laser (12) montée mobile sur celui-ci, une poutre d'aspiration (24) étant ménagée. Cette poutre d'aspiration (24) est reliée à un élément cassette (26) mobile qui est accouplé au chariot (11), cet élément cassette (26) reliant au moins une, de préférence deux conduites d'aspiration (25) à un élément d'aspiration (23) fixé à l'unité de focalisation ou à la tête laser (12), en particulier un tore d'aspiration. En outre, la table d'usinage (7) comporte au moins une ou plusieurs unités d'aspiration (44) disposées sur la largeur et la longueur de la table d'usinage (7) et sur lesquelles est ou sont posés un ou plusieurs éléments d'appui (43) pour le positionnement de la pièce (3), une unité d'aspiration (44) étant formée à partir d'un ou plusieurs canaux d'écoulement (45) disposés les uns à côté des autres, les canaux d'écoulement (45) étant reliés à une commande d'aspiration (47) dans la zone latérale de la table d'usinage (7) et à une commande d'amenée d'air (48) dans la zone opposée de la commande d'aspiration (47).
PCT/AT2023/060175 2022-06-15 2023-06-05 Traceur laser comportant un élément d'aspiration accouplé WO2023240299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50423/2022A AT526272A1 (de) 2022-06-15 2022-06-15 Laserplotter
ATA50423/2022 2022-06-15

Publications (1)

Publication Number Publication Date
WO2023240299A1 true WO2023240299A1 (fr) 2023-12-21

Family

ID=86896149

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2023/060175 WO2023240299A1 (fr) 2022-06-15 2023-06-05 Traceur laser comportant un élément d'aspiration accouplé

Country Status (2)

Country Link
AT (2) AT526272A1 (fr)
WO (1) WO2023240299A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111172U1 (de) * 2000-07-28 2001-09-06 Kappa Arbeitsschutz & Umweltte Kanalsystem
DE202004012177U1 (de) * 2004-08-04 2004-11-18 Ingenieurbüro Pieper GmbH Absaugtisch für Plasma-, Autogen- und Laserschneidanlagen
DE102004031881B4 (de) * 2004-06-30 2007-11-22 Cl Schutzrechtsverwaltungs Gmbh Vorrichtung zum Absaugen von Gasen, Dämpfen und/oder Partikeln aus dem Arbeitsbereich einer Laserbearbeitungsmaschine
US8785812B2 (en) * 2004-06-03 2014-07-22 Tel Solar Ag Table for receiving a workpiece and method for processing a workpiece on such table
US20140202296A1 (en) * 2011-09-02 2014-07-24 Eigen Systems Limited Cutting machine waste extraction apparatus
KR20160101448A (ko) 2015-02-17 2016-08-25 주식회사 이오테크닉스 클리닝 시스템 및 이를 이용한 레이저 마킹 장치 및 레이저 마킹 방법
US20170080522A1 (en) * 2014-04-01 2017-03-23 Pansonic Intellectual Property Management Co., Ltd Laser processing machine and laser processing method
KR20190024654A (ko) 2017-08-28 2019-03-08 주식회사 에스디에이 분진흡입기능이 구비된 레이저 가공 장치
US20190118262A1 (en) * 2017-10-20 2019-04-25 Concept Laser Gmbh Apparatus for additively manufacturing of three-dimensional objects
WO2021159158A1 (fr) 2020-02-12 2021-08-19 Trotec Laser Gmbh Traceur laser et procédé pour faire fonctionner un traceur laser

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009006350A (ja) * 2007-06-27 2009-01-15 Sony Corp レーザ加工装置とその加工方法、デブリ回収機構とその回収方法、並びに表示パネルの製造方法
DE102009038650B4 (de) * 2009-08-13 2013-02-21 Eurolaser Gmbh Absaugvorrichtung für Laserbearbeitungsmaschinen
JP6196059B2 (ja) * 2013-04-10 2017-09-13 株式会社ディスコ レーザー加工装置
KR101882186B1 (ko) * 2016-06-29 2018-07-27 주식회사 필옵틱스 레이저 가공용 파티클 석션 장치
JP6473914B1 (ja) * 2017-09-06 2019-02-27 株式会社アフレアー 回転気流生成装置およびレーザ加工機

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111172U1 (de) * 2000-07-28 2001-09-06 Kappa Arbeitsschutz & Umweltte Kanalsystem
US8785812B2 (en) * 2004-06-03 2014-07-22 Tel Solar Ag Table for receiving a workpiece and method for processing a workpiece on such table
DE102004031881B4 (de) * 2004-06-30 2007-11-22 Cl Schutzrechtsverwaltungs Gmbh Vorrichtung zum Absaugen von Gasen, Dämpfen und/oder Partikeln aus dem Arbeitsbereich einer Laserbearbeitungsmaschine
DE202004012177U1 (de) * 2004-08-04 2004-11-18 Ingenieurbüro Pieper GmbH Absaugtisch für Plasma-, Autogen- und Laserschneidanlagen
US20140202296A1 (en) * 2011-09-02 2014-07-24 Eigen Systems Limited Cutting machine waste extraction apparatus
US20170080522A1 (en) * 2014-04-01 2017-03-23 Pansonic Intellectual Property Management Co., Ltd Laser processing machine and laser processing method
KR20160101448A (ko) 2015-02-17 2016-08-25 주식회사 이오테크닉스 클리닝 시스템 및 이를 이용한 레이저 마킹 장치 및 레이저 마킹 방법
KR20190024654A (ko) 2017-08-28 2019-03-08 주식회사 에스디에이 분진흡입기능이 구비된 레이저 가공 장치
US20190118262A1 (en) * 2017-10-20 2019-04-25 Concept Laser Gmbh Apparatus for additively manufacturing of three-dimensional objects
WO2021159158A1 (fr) 2020-02-12 2021-08-19 Trotec Laser Gmbh Traceur laser et procédé pour faire fonctionner un traceur laser

Also Published As

Publication number Publication date
AT526272A1 (de) 2024-01-15
AT526274A2 (de) 2024-01-15

Similar Documents

Publication Publication Date Title
EP3213859B1 (fr) Machine de traitement au laser avec dispositif d'élimination des résidus
WO2015091252A1 (fr) Machine pour séparer par usinage des pièces en forme de plaques
EP2727680B1 (fr) Dispositif et procédé de coupage par lasers en rangées
EP2917007B1 (fr) Dispositif de decoupe de plaque
EP2163376B1 (fr) Machine de collage de boîte pliante destinée à la fabrication de boîtes pliantes à partir de coupes
EP0595253B1 (fr) Dispositif volant pour couper de la matière de faible épaisseur avec rayonnement du laser
EP3268162A1 (fr) Machine pour séparer par usinage des pièces en forme de plaques
AT501784A1 (de) Auflagetisch
DE112015005926B4 (de) Bearbeitungsdüse und Laserstrahl-Bearbeitungsvorrichtung
DE1202648B (de) Trimmeinrichtung fuer ein Gaskissenfahrzeug
DE3439739A1 (de) Werkstueckauflagetisch fuer plattensaegen
DE3027504A1 (de) Schleifmaschine
EP2193895A1 (fr) Installation de découpe de plaques et son procédé de fonctionnement
EP4103349B1 (fr) Traceur laser et procédé pour faire fonctionner un traceur laser
DE202013010402U1 (de) Maschine zur thermischen Bearbeitung von Werkstücken mit Reststoffentfernungsvorrichtung
WO2023240299A1 (fr) Traceur laser comportant un élément d'aspiration accouplé
WO2018055182A1 (fr) Outil et machine-outil, ainsi que procédé de découpe et/ou de formage de pièces en forme de plaque
AT523913B1 (de) Laserplotter
EP3684569B1 (fr) Procédé de découpe d'une pièce de préférence en forme de panneau
DE102016119464B4 (de) Werkzeug und Werkzeugmaschine sowie Verfahren zur Bearbeitung von plattenförmigen Werkstücken
DE4130162C2 (de) Laserbearbeitungsvorrichtung
DE3738107C1 (en) Device for deflecting a fluid jet with the aid of a jet control surface
DE102007050501A1 (de) Vorrichtung und Verfahren zum Anordnen von Durchgangsöffnungen in einem fortbewegbaren Band
DE102022133160A1 (de) Filtervorrichtung zur Einstellung einer Atmosphäre innerhalb einer Fertigungsanlage und Fertigungsanlage für ein additives Fertigungsverfahren
EP1211007B1 (fr) Dispositif d'usinage de tôles minces

Legal Events

Date Code Title Description
DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23732339

Country of ref document: EP

Kind code of ref document: A1