Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
  • B41M5/262—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used recording or marking of inorganic surfaces or materials, e.g. glass, metal, or ceramics
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
  • B41M5/267—Marking of plastic artifacts, e.g. with laser

Definitions

• the invention relates to a method for producing an insulating material, in particular from organic and / or inorganic fibers, for example from with or without glass and / or organic binders provided with organic and / or inorganic binders Ceramic fibers, the binders being heat-active components, preferably Pigments, and / or made of rigid plastic foam, such as expanded or extruded polystyrene, phenolic resin, polyurethane foam or polyisocyanorate foam, and / or from aerated concrete, mineral foam, Foam glass, sintered glass, foamed water glass or the like partially discoloring and / or inflating melts, the insulation material is changeable in its color and / or shape by thermal energy at least on one surface, in particular a large surface, at least a marking arranged as a product name and / or as a cutting aid becomes.
• the production of insulation materials is known from the prior art for example, can be designed in the form of a sheet or plate, in which one Melt made of glass or stone and fed to a fiberizing device becomes.
• the melt is defibrated into microfine fibers, which then with a binder and optionally other impregnating agents be wetted.
• the mineral fibers prepared in this way point a certain temperature in this state. Because of their temperature and especially their binders, the mineral fibers tend to stick together to be liable.
• the mineral fibers are therefore immediately after wetting at least binders on a conveyor, usually a conveyor belt stored.
• the mineral fiber web formed in this way can then be in different Wise to be processed. For example, the mineral fiber web can Reaching a certain material thickness.
• the sheet-like mineral fiber sheet After leaving the hardening furnace, the sheet-like mineral fiber sheet becomes one Winding station fed or alternatively cut into individual plates, which then fed to a packaging facility and to commercially available packaging units be packed.
• the web-shaped insulation material for example the mineral fiber boards, hard foam boards or aerated concrete boards, with markings.
• markings are usually as color markings with the help of stencils and paint spray technology or with Inkjet printers applied. Color markings have the essential Disadvantage that the building material class, i.e. affect the flammability of the products.
• Mineral wool insulation materials containing an organic binder, electrical or gas-heated marking rollers, on their circumference marking images and texts are attached. These marking rollers are periodically or constantly applied to the mineral fiber web so that the heated marking rollers discoloration of the binder in the mineral fiber product due to the temperature cause.
• This process can be discontinuous, as with Stamping or done continuously, so that you have a continuous lettering can produce on the insulation in the form that the binder through the hot zones on the surface of the insulation is discolored, and thus the Lettering or the picture symbol can be seen on the surface.
• the invention has for its object to provide a method in which the marking and / or the division of an insulating material is possible in a simple and cost-effective manner, with complicated markings and / or cuts are carried out with regard to their contours can.
• the solution to this problem provides that the insulation material is exposed to at least one laser beam with which the markings are introduced into the surface of the insulation material.
• the inventive method is characterized in that Instead of the previous techniques, the markings are made using a laser beam the surface of the insulation material.
• the laser beam offers here the main advantage that it is easy to control, in particular is steerable and adjusted to the actual conditions of the insulation material can be.
• both fiber insulation materials made of organic fibers or bound with organic binders inorganic fibers, for example glass fibers or organic substances contained insulation materials, insulation materials provided with organic coatings are or have, for example, components that are caused by thermal energy Change color and / or their shape and processed insulating materials made of hard foam in which the marking changes due to color changes and / or bloating the surface or partial sintering or melting of depressions in shape the surface.
• All insulation materials mentioned in the preamble of claim 1 can be processed.
• the insulation material becomes sheet-like fed to the laser beam for the continuous production of the insulation material to be able to maintain.
• laser beam processing in the case of molded insulation elements, such as Perform plates, pipe shells, segments or other shaped bodies, manual or automatic feeding of such molded parts into the Laser beam processing device is possible.
• Continuous processing the insulating material is usually not. Rather, it is about individual processing of the individual molded parts, such as pipe shells, Plates or the like.
• the insulation in particular the web in sections, in particular panels is divided.
• This configuration makes it possible for the Insulation sheet is not only provided with markings, but that with the same device, it is also possible to cut the insulation sheet into panels is. This leads to high investment costs in the design of production lines saved.
• a laser generating the laser beam is preferably used in longitudinal, transverse and / or the direction of distance and, if appropriate, relative in its angular position moved to the surface of the insulation.
• the laser beam is directed into the three main axes rotating mirror and a lens system on the insulation surface directed.
• the mirror is driven by electrically driven Servomotors that receive their drive signals from a control unit.
• the Control unit itself is equipped with an electronic data processing system (computer) connected in the data for certain marker arrangements and / or - configurations are stored on the insulation materials. This data is used for Control of the laser beam with regard to its movements and / or its intensity.
• the one that generates the laser beam Device with the downstream optical devices in the three spatial axes is movable.
• the laser beam is generated by a solid-state or gas laser device, preferably with the aid of a CO 2 laser.
• the light output of the laser beam is dependent on the size and the Intensity of the required material changes, especially for markings, set via the optical devices.
• the laser beam is preferred at different speeds relative to the surface of the insulation emotional. The relative speed is, for example, approx. 5 m / s.
• the laser at least in the conveying direction of the web at a speed opposite to the conveying speed larger speed, preferably 5m / s is moved.
• This increased Speed is with extensive markings in the form of letters, Numbers and / or pictograms required to cover the entire mark to be able to bring in a certain distance of the funded material.
• the laser beam is compared moving in the conveying direction at a speed that is at the conveying speed the path coincides, for example, with a straight line To be able to make a cut.
• a mineral wool web of a certain thickness and a specific bulk density removed from a hardening furnace is fed to a marking and cutting device in the exemplary embodiment of the invention.
• the marking and cutting device has a CO 2 laser with a variable output of up to 1500 watts and a wavelength of approximately 1 to 12 ⁇ m, in particular 9 to 12 ⁇ m.
• the laser beam is directed onto the mineral wool web via a mirror.
• the laser generating the laser beam is mounted on a motor-operated double cross slide above a transport device on which the mineral wool web is conveyed, so that it can be moved in all axes.
• the laser is pivotally mounted within the double cross slide, so that a laser beam generated by the laser can be applied to the surface of the mineral wool web at a certain angle, deviating from the perpendicular.
• the laser beam can be electronically adjusted, optical Devices such as lenses, lens systems, optically effective gratings or mirrors distracted in the desired way and thus over the one to be marked Surface.
• optical auxiliary devices such as lenses, lens systems, optically effective gratings or mirrors distracted in the desired way and thus over the one to be marked Surface.
• the laser is arranged on a double cross slide, the laser beam set in a first step so that it is perpendicular to the surface the mineral wool web hits.
• the double cross slide is here with a Computer connected via which the movements of the double cross slide to be controlled.
• the data to control the movement of the double cross slide the computer receives from an order management, in which the type and Number of mineral wool slabs to be produced is entered.
• the mineral wool web reaches the area of the marking and cutting device, the marking and cutting device in its maximum position stands in the direction of the running mineral wool web. Immediately after reaching the marking and cutting device starts these marks in the Introduce the surface of the mineral wool web. Here, the marking and cutting device in the direction of conveyance of the mineral wool web. As soon as the markings are fully inserted, the marking and moves Cutting device in a predetermined cutting area to the previously marked Mineral wool web to shorten one panel length. Then will the following section of the mineral wool web is marked and after completion cut to the mark.
• the speed of the laser is chosen so that it is essential is greater than the conveying speed.
• the performance of the Lasers automatically depending on the markings or the cutting process set. During the marking process, for example, a service of 250 mW, whereas the cutting process with a power of 1500 W is carried out.
• the marking is done in such a way that the laser uses low energy to shape the mold a lettering or picture is transferred to the insulation material.
• the laser energy in the narrow area the binding agent in the mineral wool insulation discolored so that after the process the lettering on the mineral wool web can be read.
• the laser energy is increased to certain Contours, which can also be straight cuts, are vertical cut to the surface.
• the Energy of the laser is set so that the laser the mineral wool web does not cut completely, but only to a certain extent.
• edges of the mineral wool web can be partially or by tilting the laser beveled completely or given any shape.

Landscapes

• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Laser Beam Processing (AREA)
• Glass Compositions (AREA)
• Insulating Bodies (AREA)
• Organic Insulating Materials (AREA)
• Thermal Insulation (AREA)
• Laminated Bodies (AREA)
• Inorganic Insulating Materials (AREA)
• Treatment Of Fiber Materials (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (7)

Publications (2)

Family

ID=27213646

Family Applications (1)

Country Status (9)

Families Citing this family (5)

Family Cites Families (7)

• 2000
  • 2000-08-16 CZ CZ20020595A patent/CZ299173B6/cs not_active IP Right Cessation
  • 2000-08-16 EP EP00954632A patent/EP1226038B1/de not_active Revoked
  • 2000-08-16 WO PCT/EP2000/007962 patent/WO2001014148A1/de active IP Right Grant
  • 2000-08-16 DK DK00954632T patent/DK1226038T3/da active
  • 2000-08-16 ES ES00954632T patent/ES2208403T3/es not_active Expired - Lifetime
  • 2000-08-16 PL PL00357364A patent/PL196062B1/pl unknown
  • 2000-08-16 AU AU67020/00A patent/AU6702000A/en not_active Abandoned
  • 2000-08-16 AT AT00954632T patent/ATE240842T1/de not_active IP Right Cessation
  • 2000-08-16 HU HU0203778A patent/HU223652B1/hu not_active IP Right Cessation

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