EP1226038B1 - Method for producing an insulating material - Google Patents

Method for producing an insulating material Download PDF

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Publication number
EP1226038B1
EP1226038B1 EP00954632A EP00954632A EP1226038B1 EP 1226038 B1 EP1226038 B1 EP 1226038B1 EP 00954632 A EP00954632 A EP 00954632A EP 00954632 A EP00954632 A EP 00954632A EP 1226038 B1 EP1226038 B1 EP 1226038B1
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EP
European Patent Office
Prior art keywords
laser beam
insulating material
laser
foam
markings
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.)
Revoked
Application number
EP00954632A
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German (de)
French (fr)
Other versions
EP1226038A1 (en
Inventor
Peter Kesting
Werner Paulitschke
Gerd-Rüdiger Klose
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.)
Deutsche Rockwool Mineralwoll GmbH and Co OHG
Original Assignee
Deutsche Rockwool Mineralwoll GmbH and Co OHG
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Priority claimed from DE10017269A external-priority patent/DE10017269B4/en
Application filed by Deutsche Rockwool Mineralwoll GmbH and Co OHG filed Critical Deutsche Rockwool Mineralwoll GmbH and Co OHG
Priority to SI200030143T priority Critical patent/SI1226038T1/en
Publication of EP1226038A1 publication Critical patent/EP1226038A1/en
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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)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Laser Beam Processing (AREA)
  • Glass Compositions (AREA)
  • Insulating Bodies (AREA)
  • Organic Insulating Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Laminated Bodies (AREA)
  • Thermal Insulation (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

The invention relates to a method for producing an insulating material, preferably a mineral fibre product, especially in the form of webs or boards. After being moistened with binders, the mineral fibres are placed in webs on a conveyor system. The invention is designed to create a process whereby marking and/or division of an insulating webs is carried out in a simpler and economically more affordable manner, whereby in view of their contours, complex markings and cuts can be carried out. To that effect, at least one laser beam is impinged on the insulating sheets so that the outer surfaces of the sheets are marked.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Dämmstoffes, insbesondere aus organischen und/oder anorganischen Fasern, beispielsweise aus mit oder ohne organischen und/oder anorganischen Bindemitteln versehenen Glasund/oder Keramikfasern, wobei den Bindemitteln hitzeaktive Bestandteile, vorzugsweise Pigmente, beigefügt werden, und/oder aus Kunststoff-Hartschaum, wie beispielsweise expandiertem oder extrudiertem Polystyrol, Phenolharz, Polyurethanschaum oder Polyisocyanoratschaum, und/oder aus Porenbeton, Mineralschaum, Schaumglas, Sinterglas, aufgeschäumten Wasserglas oder ähnlichen sich partiell verfärbenden und/oder aufblähenden Schmelzen, wobei der Dämmstoff durch Wärmeenergie in seiner Farbe und/oder Gestalt veränderbar ist, bei dem auf zumindest einer Fläche, insbesondere einer großen Oberfläche zumindest eine Markierung als Produktbezeichnung und/oder als Schneidhilfe angeordnet wird.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.

Aus dem Stand der Technik ist die Herstellung von Dämmstoffen bekannt, die beispielsweise bahnen- oder plattenförmig ausgebildet sein können, bei der eine Schmelze aus Glas oder Gestein hergestellt und einem Zerfaserungsgerät zugeführt wird. In dem Zerfaserungsgerät wird die Schmelze in mikrofeine Fasern zerfasert, die anschließend mit einem Bindemittel und gegebenenfalls weiteren Imprägnierungsmitteln benetzt werden. Die derart vorbereiteten Mineralfasern weisen in diesem Zustand eine bestimmte Temperatur auf. Aufgrund ihrer Temperatur und insbesondere ihrer Bindemittel neigen die Mineralfasern dazu aneinander zu haften. Die Mineralfasern werden daher unmittelbar nach ihrer Benetzung mit zumindest Bindemitteln auf einer Fördereinrichtung, in der Regel ein Förderband abgelegt. Die derart gebildete Mineralfaserbahn kann dann in unterschiedlichen Weisen weiterbearbeitet werden. Beispielsweise kann die Mineralfaserbahn nach Erreichen einer bestimmten Materialstärke aufgependelt werden. In der Regel durchläuft die Mineralfaserbahn Kompressionseinrichtungen, Schneideinrichtungen zur Seitenrandbesäumung sowie zumindest einen Härteofen, um das Bindemittel auszuhärten.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. In the defibration device, 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. Usually passes through the mineral fiber web compression devices, cutting devices for side edge trimming as well as at least one hardening furnace around the binder cure.

Nach Verlassen des Härteofens wird die bahnenförmige Mineralfaserbahn einer Wickelstation zugeführt bzw. altemativ in einzelne Platten geschnitten, die dann einer Verpackungseinrichtung zugeführt und zu handelsüblichen Verpackungseinheiten verpackt werden.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.

Aus dem Stand der Technik ist ferner bekannt, daß der bahnenförmige Dämmstoff beispielsweise die Mineralfaserplatten, Hartschaumplatten oder Porenbetonplatten, mit Markierungen versehen werden. Diese Markierungen werden in der Regel als Farbmarkierungen mit Hilfe von Schablonen und Farbspritztechnik oder mit Tintenstrahldruckern aufgebracht. Farbmarkierungen haben aber den wesentlichen Nachteil, daß sie die Baustoffklasse, d.h. die Brennbarkeit der Produkte beeinflussen. Um diese Beeinflussung zu vermeiden, setzt man insbesondere bei Mineralwolledämmstoffen, die ein organisches Bindemittel enthalten, elektrischoder gasbeheizte Markierungswalzen ein, auf deren Umfang Markierungsbilder und -texte angebracht sind. Diese Markierungswalzen werden periodisch oder konstant auf die Mineralfaserbahn aufgebracht, so daß die beheizten Markierungswalzen aufgrund der Temperatur eine Verfärbung des Bindemittels im Mineralfaserprodukt hervorrufen. Dieser Vorgang kann diskontinuierlich, wie beim Stempeln oder kontinuierlich erfolgen, so daß man einen fortlaufenden Schriftzug auf dem Dämmstoff in der Gestalt erzeugen kann, daß das Bindemittel durch die heißen Zonen an der Oberfläche des Dämmstoffs verfärbt wird, und somit der Schriftzug bzw. das Bildzeichen auf der Oberfläche zu sehen ist.It is also known from the prior art that the web-shaped insulation material for example the mineral fiber boards, hard foam boards or aerated concrete boards, with markings. These 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. In order to avoid this influence, one puts in particular 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.

Um eine Dämmstoffbahn in einzelne Plattenelemente aufzuteilen ist es bekannt, im Bereich einer Produktionslinie entsprechende Sägeinrichtungen, beispielsweise Pendel-, Kreis- und Bandsägen vorzusehen, die in Abhängigkeit des zu erzeugenden Produktes zum Einsatz gelangen. Mit derartigen Sägen können aber nur geradlinige Schnitte ausgeführt werden. In order to divide an insulation web into individual panel elements, it is known corresponding sawing devices in the area of a production line, for example Pendulum, circular and band saws to be provided depending on what is to be generated Product used. With such saws can only straight cuts are made.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zu schaffen, bei dem die Kennzeichnung und/oder die Aufteilung eines Dämmstoffes in einfacher und kostengünstiger Weise möglich ist, wobei auch hinsichtlich ihrer Konturen komplizierte Kennzeichnungen und/oder Schnitte ausgeführt werden können.Based on this prior art, 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.

Die Lösung dieser Aufgabenstellung sieht vor, daß der Dämmstoff mit zumindest einem Laserstrahl beaufschlagt wird, mit dem die Markierungen in die Fläche des Dämmstoffs eingebracht werden.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.

Demzufolge zeichnet sich das erfindungsgemäße Verfahren dadurch aus, daß anstelle der bisherigen Techniken die Markierungen mittels eines Laserstrahls in die Oberfläche des Dämmstoffs eingebracht werden. Der Laserstrahl bietet hierbei den wesentlichen Vorteil, daß er in einfacher Weise steuerbar, insbesondere lenkbar ist und auf die tatsächlichen Gegebenheiten des Dämmstoffs eingestellt werden kann. Bei dem erfindungsgemäßen Verfahren können sowohl Faserdämmstoffe aus organischen Fasern bzw. mit organischen Bindemitteln gebundene anorganische Fasern, beispielsweise Glasfasern oder organische Substanzen enthaltene Dämmstoffe, Dämmstoffe, die mit organischen Beschichtungen versehen sind oder beispielsweise Bestandteile haben, die durch Wärmeenergie ihre Farbe und/oder ihre Gestalt ändern sowie Dämmstoffe aus Hartschaum bearbeitet werden, bei denen sich die Markierung durch Farbveränderungen und/oder Aufblähen der Oberfläche oder partielles Sintern bzw. Schmelzen von Vertiefungen in der Oberfläche ausprägen. Insbesondere sind mit dem erfindungsgemäßen Verfahren sämtliche im Oberbegriff des Anspruchs 1 genannten Dämmstoffe bearbeitbar.Accordingly, 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. In the method according to the invention, 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. In particular, with the method according to the invention All insulation materials mentioned in the preamble of claim 1 can be processed.

Bei einem kontinuierlichen Herstellungsprozeß wird der Dämmstoff bahnenförmig dem Laserstrahl zugeführt, um die kontinuierliche Herstellung des Dämmstoffs beibehalten zu können. Es besteht aber auch die Möglichkeit, die Laserstrahlbearbeitung bei bereits hergestellten Dämmstoffformelementen, wie beispielsweise Platten, Rohrschalen, Segmenten oder sonstigen Formkörpern durchzuführen, wobei hier eine manuelle oder automatische Zuführung derartiger Formteile in die Laserstrahlbearbeitungseinrichtung möglich ist. Eine kontinuierliche Bearbeitung des Dämmstoffs erfolgt in der Regel nicht. Vielmehr handelt es sich hierbei um eine Einzelbearbeitung der einzelnen Formteile, wie beispielsweise Rohrschalen, Platten oder dergleichen.In a continuous manufacturing process, the insulation material becomes sheet-like fed to the laser beam for the continuous production of the insulation material to be able to maintain. But there is also the possibility of 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.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß mit dem Laserstrahl der Dämmstoff, insbesondere die Bahn in Abschnitte, insbesondere Platten aufgeteilt wird. Durch diese Ausgestaltung besteht die Möglichkeit, daß die Dämmstoffbahn nicht nur mit Markierungen versehen wird, sondern daß mit der gleichen Einrichtung auch ein Schneiden der Dämmstoffbahn in Platten möglich ist. Es werden hierdurch hohe Investitionskosten bei der Gestaltung von Produktionslinien eingespart. Darüber hinaus hat es sich als vorteilhaft erwiesen, daß die Wartung eines Laserstrahls aufgrund seiner im Vergleich zu herkömmlichen Komponenten geringeren Anzahl von mechanischen Elementen wesentlich wartungsfreundlicher ist.According to a further feature of the invention it is provided that with the laser beam 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. In addition, it has proven advantageous that the Maintenance of a laser beam due to its compared to conventional components lower number of mechanical elements much easier to maintain is.

Ein den Laserstrahl erzeugender Laser wird vorzugsweise in Längs-, Quer- und/oder Abstandsrichtung sowie gegebenenfalls in seiner Winkelstellung relativ zur Oberfläche des Dämmstoffs bewegt. Der Laserstrahl wird über einen in den drei Hauptachsen drehbaren Spiegel und ein Linsensystem auf die Dämmstoffoberfläche gelenkt. Der Antrieb des Spiegels erfolgt über elektrisch angetriebene Servomotoren, die ihre Antriebssignale von einem Steuergerät erhalten. Das Steuergerät selbst ist mit einer elektronischen Datenverarbeitungsanlage (Rechner) verbunden, in der Daten für bestimmte Markierungsanordnungen und/oder -ausgestaltungen auf den Dämmstoffen gespeichert sind. Diese Daten dienen der Steuerung des Laserstrahls hinsichtlich seiner Bewegungen und/oder seiner Intensität. Alternativ kann vorgesehen sein, daß die den Laserstrahl erzeugende Vorrichtung mit den nachgeschalteten optischen Einrichtungen in den drei Raumachsen bewegbar ist. Durch die Vielzahl der Freiheitsgrade des Laserstrahls können Markierungen und Schnitte in unterschiedlichster Form eingebracht werden. Darüber hinaus besteht der Vorteil, daß beispielsweise sämtliche Buchstaben und Zahlen sowie Pictogramme rechnergesteuert und variabel eingebracht werden können. Weiterhin besteht der Vorteil, daß Mineralfaserplatten hergestellt werden können, die beispielsweise an zwei gegenüberliegenden Seiten einen Randverlauf aufweisen, der von einer geradlinigen Begrenzung abweicht. Es können somit beispielsweise Mineralfaserplatten mit bestimmten halbkreisförmigen Ausnehmungen entsprechend von Kundenanforderungen hergestellt werden.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. Alternatively, it can be provided that the one that generates the laser beam Device with the downstream optical devices in the three spatial axes is movable. Due to the large number of degrees of freedom of the laser beam markings and cuts can be made in a wide variety of forms. In addition, there is the advantage that, for example, all letters and numbers and pictograms are computer controlled and variably introduced can be. There is also the advantage that mineral fiber boards are produced can be, for example, one on two opposite sides Have edge course that deviates from a straight line boundary. It can thus, for example, mineral fiber boards with certain semicircular Recesses are made according to customer requirements.

Der Laserstrahl wird von einem Festkörper- oder Gaslasergerät vorzugsweise mit Hilfe eines CO2-Lasers erzeugt.The laser beam is generated by a solid-state or gas laser device, preferably with the aid of a CO 2 laser.

Die Lichtleistung des Laserstrahls wird in Abhängigkeit von der Größe und der Intensität der erforderlichen Materialveränderungen, insbesondere bei Markierungen, über die optischen Einrichtungen eingestellt. Vorzugsweise wird der Laserstrahl mit unterschiedlicher Geschwindigkeit relativ zur Oberfläche des Dämmstoffs bewegt. Die Relativgeschwindigkeit liegt beispielsweise bei ca. 5m/s.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.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß der Laser zumindest in Förderrichtung der Bahn mit einer gegenüber der Fördergeschwindigkeit größeren Geschwindigkeit, vorzugsweise 5m/s bewegt wird. Diese erhöhte Geschwindigkeit ist bei umfangreichen Markierungen in Form von Buchstaben, Zahlen und/oder Pictogrammen erforderlich, um die gesamte Markierung über eine bestimmte Wegstrecke des geförderten Materials einbringen zu können.According to a further feature of the invention it is provided that 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.

Während des Aufteilens der Bahn in Abschnitte wird der Laserstrahl demgegenüber mit einer Geschwindigkeit in Förderrichtung bewegt, die mit der Fördergeschwindigkeit der Bahn übereinstimmt, um beispielsweise einen geradlinig begrenzten Schnitt ausführen zu können.In contrast, during the division of the web into sections, 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.

Schließlich ist nach einem weiteren Merkmal der Erfindung vorgesehen, daß die Bewegungen und/oder die Leistung des Laserstrahls über eine Rechneranlage gesteuert werden, deren Eingangsdaten insbesondere der Produktionssteuerung entnommen werden. Eine derartige Verknüpfung der Produktionssteuerung mit der Markierungssteuerung bzw. Schnittsteuerung hat den Vorteil, daß entsprechend dem Kundenwunsch kommissionierte Ware in einfacher und zuverlässiger Weise hergestellt werden kann.Finally, it is provided according to a further feature of the invention that the Movements and / or the power of the laser beam via a computer system are controlled, their input data in particular the production control be removed. Such a link between production control and the marker control or cut control has the advantage that accordingly Goods which have been picked according to customer requirements in a simple and reliable manner Way can be made.

Eine einem Härteofen entnommene Mineralwollebahn bestimmter Dicke und bestimmter Rohdichte wird beim Ausführungsbeispiel der Erfindung einer Markierungs- und Schneidvorrichtung zugeführt. Die Markierungs- und Schneidvorrichtung weist einen CO2-Laser mit variabler Leistung bis zu 1500 Watt und einer Wellenlänge von ca. 1 bis 12 µm, insbesondere von 9 bis 12 µm auf. Der Laserstrahl wird über einen Spiegel auf die Mineralwollebahn gelenkt. Alternativ kann vorgesehen sein, daß der den Laserstrahl erzeugende Laser oberhalb einer Transporteinrichtung, auf der der Mineralwollebahn gefördert wird, auf einem motorbetriebenen Doppelkreuzschlitten montiert ist, so daß er in allen Achsen verfahrbar ist. Darüber hinaus ist der Laser innerhalb des Doppelkreuzschlittens schwenkbeweglich gelagert, so daß ein vom Laser erzeugter Laserstrahl unter einem bestimmten Winkel, abweichend von der Lotrechten auf die Oberfläche der Mineralwollebahn aufgebracht werden kann.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 μm, in particular 9 to 12 μm. The laser beam is directed onto the mineral wool web via a mirror. Alternatively, it can be provided that 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. In addition, 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.

Weiterhin kann der Laserstrahl mit Hilfe von elektronisch justierbaren, optischen Einrichtungen wie Linsen, Linsensystemen, optisch wirksamen Gittern oder Spiegeln in der gewünschten Weise abgelenkt und somit über die zu markierende Oberfläche geführt werden. Durch diese optischen Hilfseinrichtungen, sowie durch Variation des Abstandes derselben zu der zu markierenden Oberfläche, durch Veränderung des Neigungswinkels und der Intensität des Laserstrahls können die Breite und Intensität der Markierung verändert werden.Furthermore, 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. Through these optical auxiliary devices, as well as through Varying the distance of the same from the surface to be marked, by Changing the angle of inclination and the intensity of the laser beam can Width and intensity of the marking can be changed.

Bei einer Anordnung des Lasers auf einem Doppelkreuzschlitten wird der Laserstrahl in einem ersten Schritt derart eingestellt, daß er rechtwinklig auf die Oberfläche der Mineralwollebahn auftrifft. Der Doppelkreuzschlitten ist hierbei mit einem Rechner verbunden, über den die Bewegungen des Doppelkreuzschlittens gesteuert werden. Die Daten zur Steuerung der Bewegung des Doppelkreuzschlittens erhält der Rechner aus einer Auftragsverwaltung, in die die Art und die Anzahl der herzustellenden Mineralwolleplatten eingegeben ist.If 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.

Die Mineralwollebahn gelangt in den Bereich der Markierungs- und Schneidvorrichtung, wobei die Markierungs- und Schneidvorrichtung in ihrer maximalen Stellung in Richtung der auflaufenden Mineralwollebahn steht. Unmittelbar nach Erreichen der Markierungs- und Schneidvorrichtung beginnt diese Markierungen in die Oberfläche der Mineralwollebahn einzubringen. Hierbei bewegt sich die Markierungs- und Schneidvorrichtung in Förderrichtung der Mineralwollebahn. Sobald die Markierungen vollständig eingebracht sind, bewegt sich die Markierungs- und Schneidvorrichtung in einen vorbestimmten Schneidbereich, um die zuvor markierte Mineralwollebahn um eine Plattenlänge zu verkürzen. Anschließend wird der nachfolgende Abschnitt der Mineralwollebahn markiert und nach Fertigstellung der Markierung abgelängt.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.

Die Verfahrgeschwindigkeit des Lasers ist hierbei so gewählt, daß sie wesentlich größer als die Fördergeschwindigkeit ist. Darüber hinaus wird die Leistung des Lasers in Abhängigkeit der Markierungen bzw. des Schneidprozesses automatisch eingestellt. Während des Markiervorgangs wird beispielsweise eine Leistung von 250 mW eingestellt, wohingegen der Schneidvorgang bei einer Leistung von 1500 W durchgeführt wird.The speed of the laser is chosen so that it is essential is greater than the conveying speed. In addition, 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.

Die Markierung erfolgt derart, daß mit dem Laser mit niedriger Energie die Form eines Schriftzuges oder Bildes auf den Dämmstoff übertragen wird. Hierbei wird mittels der Laserenergie im engen Bereich das Bindemittel im Mineralwolle-Dämmstoff verfärbt, so daß nach dem Vorgang der Schriftzug auf der Mineralwollebahn zu lesen ist. Anschließend wird die Laserenergie erhöht, um bestimmte Konturen, bei denen es sich auch um geradlinige Schnitte handeln kann, senkrecht zur Oberfläche einzuschneiden. Es besteht auch die Möglichkeit, daß die Energie des Lasers derart eingestellt wird, daß der Laser die Mineralwollebahn nicht vollständig, sondern nur bis zum einem bestimmten Maß schneidet. 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. Here will by means of 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. Then the laser energy is increased to certain Contours, which can also be straight cuts, are vertical cut to the surface. There is also a possibility that 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.

Die Ränder der Mineralwollebahn können durch Kippen des Lasers teilweise oder vollständig angeschrägt werden bzw. eine beliebige Form erhalten.The edges of the mineral wool web can be partially or by tilting the laser beveled completely or given any shape.

Claims (14)

  1. A method for producing an insulating material, particularly of organic and/or inorganic fibers, e.g glass and/or ceramic fibers provided or not provided with organic and/or inorganic binders, wherein said binders are added heat-resistive components, preferably pigments, and/or of plastic solid foam such as expanded or extruded polystyrene, phenol resin, polyurethane foam or polyisocyanorate foam, and/or of porous concrete, mineral foam, foam glass, sintered glass, foamed water glass or similar partially colouring and/or swelling melts, wherein said insulating material can be changed of its colour and/or shape by means of thermal energy, and which insulating material has arranged on at least one surface and pereferably on a large surface thereof a marking as a product name and/or as a cutting aid,
    characterized in that at least one laser beam is applied to said insulating material, by means of which said markings are brought in the surface of the insulating material.
  2. Method according to claim 1,
    characterized in that said insulating material is fed to the laser beam in the form of webs.
  3. Method according to claim 1 or 2,
    characterized in that said insulating material and particularly said web of insulating material is divided in sections and particularly in panels, by means of said laser beam.
  4. Method according to claim 1,
    characterized in that said laser beam is moved in the longitudinal, cross and/or distance direction and/or in its angular position releative to the surface of the web of mineral fibers, by means of an electronically adjustable optical device.
  5. Method according to claim 1,
    characterized in that the laser beam is varied of its width and/or intensity.
  6. Method according to claim 1,
    characterized in that a laser producing said laser beam is moved relative to the surface of the insulating material in the longitudinal, cross and/or distance direction and, if necessary, in its angular position.
  7. Method according to claim 1,
    characterized in that the laser beam is produced by means of a solid material, glass, and particularly a CO2 laser.
  8. Method according to claim 1,
    characterized in that the power of the laser beam is set in dependence of the dimension and intensity of the required material variations.
  9. Method according to claim 1,
    characterized in that the markings are configured as contours.
  10. Method according to claim 2,
    characterized in that the laser beam is moved at least in the web conveying direction at a speed higher than the conveying speed, preferably 5 m/s.
  11. Method according to claim 1,
    characterized in that binders and/or pigments in the inorganic binder in the insulating material are coloured by means of the laser beam through thermal energy.
  12. Method according to claim 2,
    characterized in that the laser beam, while dividing the insulating material in sections, is moved in the conveying direction at a speed which corresponds to the conveying speed of the insulating material.
  13. Method according to claim 1,
    characterized in that the motions and/or power of the laser beam are controlled via computing machinery, of which the input data are retrieved from the production control and particularly from the job management.
  14. Method according to claim 1,
    characterized in that in insulating materials made of hard foam markings through colour changes or through partial sintering or melting are applied to the surface by means of the laser.
EP00954632A 1999-08-21 2000-08-16 Method for producing an insulating material Revoked EP1226038B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030143T SI1226038T1 (en) 1999-08-21 2000-08-16 Method for producing an insulating material

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE19939827 1999-08-21
DE19939827 1999-08-21
DE10005939 2000-02-10
DE10005939 2000-02-10
DE10017269A DE10017269B4 (en) 2000-02-10 2000-04-06 Process for producing an insulating material
DE10017269 2000-04-06
PCT/EP2000/007962 WO2001014148A1 (en) 1999-08-21 2000-08-16 Method for producing an insulating material

Publications (2)

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EP1226038A1 EP1226038A1 (en) 2002-07-31
EP1226038B1 true EP1226038B1 (en) 2003-05-21

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EP00954632A Revoked EP1226038B1 (en) 1999-08-21 2000-08-16 Method for producing an insulating material

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EP (1) EP1226038B1 (en)
AT (1) ATE240842T1 (en)
AU (1) AU6702000A (en)
CZ (1) CZ299173B6 (en)
DK (1) DK1226038T3 (en)
ES (1) ES2208403T3 (en)
HU (1) HU223652B1 (en)
PL (1) PL196062B1 (en)
WO (1) WO2001014148A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA005394B1 (en) * 2000-09-06 2005-02-24 Сэн-Гобэн Изовер Mineral wool product and manufacturing method
DE10102853B4 (en) * 2001-01-17 2005-02-10 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Process for producing an insulating material
DE10123678A1 (en) * 2001-05-16 2002-12-12 Rockwool Mineralwolle Process for producing an insulating element
DE102006044327B4 (en) 2006-09-19 2008-08-21 Kronotec Ag Marked wood fiber insulating materials
DE102010038098B4 (en) 2010-10-11 2021-06-10 Saint-Gobain Isover G+H Ag Method and device for marking surfaces of mineral wool webs containing binding agents

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932319B2 (en) * 1974-03-22 1984-08-08 富士写真フイルム株式会社 recording material
DE3229601C2 (en) * 1982-08-09 1984-12-06 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Insulating material web, consisting of an insulating material layer, in particular of mineral fiber felt, and a glued-on lamination web, as well as a process for its production and a process for its installation
GB2281129B (en) * 1993-08-19 1997-04-09 United Distillers Plc Method of marking a body of glass
DE19646813C2 (en) * 1996-01-10 1998-07-09 Hans Hnatek Process for the production of images and characters on the surface of cut-resistant products in the food industry
DE59609367D1 (en) * 1996-03-12 2002-07-25 Kaibel & Sieber Gmbh Device and method for applying markings to a mineral fiber product
DE19630478A1 (en) * 1996-07-27 1998-01-29 Quarzwerke Gmbh Process for laser marking foils
DE29822362U1 (en) * 1998-12-15 1999-04-08 Pfleiderer Dämmstofftechnik International GmbH & Co., 92318 Neumarkt Insulation membrane

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WO2001014148A1 (en) 2001-03-01
PL196062B1 (en) 2007-11-30
EP1226038A1 (en) 2002-07-31
HUP0203778A2 (en) 2003-05-28
CZ2002595A3 (en) 2002-09-11
DK1226038T3 (en) 2003-09-08
AU6702000A (en) 2001-03-19
ES2208403T3 (en) 2004-06-16
PL357364A1 (en) 2004-07-26
ATE240842T1 (en) 2003-06-15
HU223652B1 (en) 2004-11-29
CZ299173B6 (en) 2008-05-07

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