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EP1910024B2 - Device for machining a strip or plate-shaped metal workpiece - Google Patents

Device for machining a strip or plate-shaped metal workpiece Download PDF

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Publication number
EP1910024B2
EP1910024B2 EP06776364.9A EP06776364A EP1910024B2 EP 1910024 B2 EP1910024 B2 EP 1910024B2 EP 06776364 A EP06776364 A EP 06776364A EP 1910024 B2 EP1910024 B2 EP 1910024B2
Authority
EP
European Patent Office
Prior art keywords
belt
machining
supporting
abrasive papers
abrasive
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.)
Active
Application number
EP06776364.9A
Other languages
German (de)
French (fr)
Other versions
EP1910024B1 (en
EP1910024A1 (en
Inventor
Josef Weiland
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.)
Lissmac Maschinenbau GmbH
Original Assignee
Lissmac Maschinenbau 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
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Application filed by Lissmac Maschinenbau GmbH filed Critical Lissmac Maschinenbau GmbH
Priority to EP08020006A priority Critical patent/EP2025465B1/en
Publication of EP1910024A1 publication Critical patent/EP1910024A1/en
Application granted granted Critical
Publication of EP1910024B1 publication Critical patent/EP1910024B1/en
Publication of EP1910024B2 publication Critical patent/EP1910024B2/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/033Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/04Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes

Definitions

  • the invention relates to a device for processing a strip-shaped or plate-shaped metallic workpiece, with at least one circulating conveyor provided with processing elements, wherein the conveyor at least approximately linearly passes the processing elements obliquely or transversely to the feed direction of the workpiece in the region of the workpiece to be machined.
  • the invention also relates to a processing unit for a device for processing a strip-shaped or plate-shaped metal workpiece.
  • a generic device is from the DE 103 20 295 A1 known.
  • edges in particular the cut edges, to be deburred or rounded. Furthermore, it may be advantageous to finely grind the surfaces of the strip or plate-shaped metal workpiece.
  • a particularly advantageous method for removing the oxide layer and for deburring the (cut) edges and the cut surfaces is from the DE 103 20 295 A1 known.
  • a provided with at least one processing element circulating conveyor is provided, wherein the conveyor at least approximately linearly passes the at least one processing element in the region of the workpiece to be machined.
  • the processing element does not remain rigidly on a position due to the arrangement on a revolving conveyor, but is guided past the entire length which is present for the passage of the workpiece, uniform wear of the at least one processing element is ensured.
  • the workpiece can be carried out in a simple manner obliquely, preferably transversely to the direction of rotation of the processing element or pulled through, so that the workpiece is processed evenly by the processing element.
  • both the surfaces i. the main surfaces of the band- or plate-shaped metal workpiece processed as well as the cut surfaces and cut edges descaled.
  • the device also deburrs the edges and cut surfaces and can be used for fine grinding.
  • the present invention has for its object to further develop the generic device, in particular to achieve a particularly cost-effective and uniform machining of band-shaped or plate-shaped metal workpieces, the device should be easy to assemble and maintain.
  • the processing elements are designed according to claim 1 as abrasive papers and arranged between the abrasive papers support elements, there is an advantageous use of the device according to the invention.
  • the abrasive paper can be used to remove the oxide layer from the cut surfaces and cut edges; on the other hand, the edges can be deburred and rounded. Even a fine grinding of the band or plate-shaped metal workpiece is possible by the sandpaper.
  • the sanding papers can be used in different grain sizes, for example a 60 or 120 grit.
  • the formation of the processing elements as sandpaper is inexpensive possible.
  • the abrasive papers on the one hand obtain a desired stability by means of the support elements, on the other hand it is avoided that the sanding papers rub against each other, i. that in the circumferential direction in each case rear sandpaper rubs the back of the front sandpaper.
  • the support elements are designed as supporting fleeces, since an embodiment of a nonwoven material has proven to be particularly suitable.
  • a plurality of abrasive papers are combined as a processing unit, wherein in each case a supporting fleece is arranged between the abrasive papers is.
  • a support felt to be arranged behind the last abrasive paper.
  • the arrangement of a supporting felt in the circumferential direction behind the last sandpaper is particularly suitable since felt is on the one hand more durable than nonwoven and on the other hand can absorb a higher bending load.
  • the backing fleece has abrasive properties, in particular finely abrasive properties, and thus also contributes to the machining of the workpiece in addition to the support function.
  • the abrasive papers and the support elements have approximately the same height and the same width.
  • the abrasive papers, the backing webs and the backing felt may be cast into a backing member of the processing unit. It can be provided that the abrasive papers, the backing fleeces and the backing felt are inserted into the carrier element or a mold and then cast together.
  • the processing unit thus formed can be screwed by a screw in a simple manner with a belt of the conveyor, for example. It is advantageous if the processing unit has on its underside or the support element of the processing unit on its underside a threaded opening or is provided with a threaded bushing. It may also be advantageous if the belt of the conveyor has correspondingly adapted through holes, whereby on the one hand the position of the processing units is determined and on the other hand a simple screwing is possible.
  • a stable, in particular secure against rotation attachment of the processing units on the belt is supported by the fact that a guide strip is applied to the belt.
  • the processing unit has on its side facing the belt V-belt on a groove for receiving the guide bar. A rotation of the processing unit on the V-belt is thus avoided in a simple manner, whereby a uniform and process-optimized processing results.
  • the flanks of the groove may optionally be slightly bevelled (for example by 2 to 8 °, preferably 5 °), so that the groove tapers slightly in the direction of the groove bottom.
  • the abrasive papers may preferably have a width of 50 mm. These values have proven to be particularly suitable in experiments to be able to work effectively on strip or plate-shaped metal workpieces. It is advantageous if the sandpaper has longitudinal slots which extend from the end facing the workpiece to be machined and extend at least over part of the height of the abrasive papers in the direction of the support member. Alternatively, the abrasive papers can also be designed in each case as a single grinding lamellae. However, a preferred, in particular process-reliable and cost-effective embodiment results from the fact that abrasive papers having a plurality of longitudinal slots are used.
  • a preferred processing unit for a device for processing a strip-shaped or plate-shaped metallic workpiece results from claim 13.
  • V-belt results from claim 15. It can be provided that the V-belt is circumferentially provided with successively arranged processing units, wherein the processing units are preferably bolted to the V-belt.
  • the processing units are in this case constructed of a plurality of abrasive papers, wherein between each two abrasive papers each a support web is formed.
  • a support felt can be arranged behind the last sandpaper.
  • FIGS. 1 and 5-9 an embodiment of the invention shown in principle.
  • FIGS. 2 to 4 do not represent an embodiment of the invention.
  • Fig. 1 shows a device for processing a band- or plate-shaped metal workpiece 1.
  • the inventive device is particularly suitable for removing the oxide layer of cut surfaces and / or cutting edges of the workpiece 1 and for deburring the edges.
  • both circumferential cut surfaces and cut edges of the workpiece 1 as well as cut surfaces and cut edges of recesses, holes or the like in the workpiece 1 can be bled and deburred.
  • Fig. 1 shows a particularly preferred embodiment of the device according to the invention with four conveyors 2.
  • a device can be used which has only one conveyor 2.
  • the conveyors 2 are with the following with reference to the FIGS. 2 to 9 in detail described processing elements 3 and 4 processing units provided.
  • the conveyors 2 guide the processing elements 3 or the processing units 4 at least approximately linearly in the area of the workpiece 1 to be processed.
  • the workpiece 1 to be machined is carried out or pulled through between the conveyors 2 transversely to the direction of rotation of the conveyors 2.
  • a sheet metal insert 5 are provided for placing the workpiece 1 while a sheet metal insert 5 are provided.
  • a storage table 6 is provided for the output of the workpiece 1.
  • Feed rollers 7 are provided, which ensures a uniform and reliable transport of the workpiece 1 transverse to the directions of rotation of the conveyor 2.
  • Fig. 1 illustrated solution according to the invention with four conveyors 2, it is possible to work the workpiece 1 in one go completely. Re-insertion of the workpiece 1 is not necessary.
  • an adjusting device can be provided, by means of which the depth of engagement of the processing elements 3 and the processing units 4 can be varied. This is particularly advantageous for correcting the wear of the processing elements 3 and optionally for increasing the pressure.
  • the conveyors 2 are arranged slightly offset from one another in the direction of passage of the workpiece 1.
  • a uniform and balanced pressure of the processing elements 3 or of the processing units 4 is ensured, which compensates for each other Workpiece 1 does not tend to tilt.
  • the device according to the invention shown is a variant in which the conveyors 2 are arranged lying, so that the processing elements 3 and the processing units 4 in the region of the workpiece 1 are substantially horizontal.
  • the solution according to the invention may be provided in a manner not shown with standing arranged conveyors 2.
  • Fig. 1 illustrated embodiment of the device according to the invention with four conveyors 2, it is advantageous if each of the two main surfaces of the workpiece 1 is processed by two counter-rotating conveyor 2 each.
  • the processing elements 3 and the processing units 4 are arranged on a belt 8, which is part of the respective conveyor 2 and rotates in the manner described transversely to the feed direction of the workpiece 1.
  • Fig. 2 shows such a belt 8 in one embodiment as a V-belt.
  • the V-belt is designed as a triple V-belt 8.
  • the processing elements 3 are provided with bristles 9.
  • the bristles 9 are formed in a known manner from metal. In a simple representation, the bristles 9 may be straight. However, it is advantageous to form the bristles 9 with a corrugated or twisted course, so that the bristles 9 resemble a scrubby brush or a tuft.
  • the bristles 9 can be shot in bundles in the processing elements 3.
  • the editing elements 3 can be made of plastic, for example, and have corresponding mounting holes.
  • the bristles 9 may be provided with not shown barbs.
  • the bristles 9 may be inclined up to 45 °, preferably by 15 °, in the direction of rotation of the belt 8. That the tips of the bristles 9 are in the direction of rotation in front of the correspondingly opposite end of the bristles 9, which is connected to the processing elements 3. As has been found in experiments, penetrate the inclined by 15 ° bristles 9 penetrate particularly advantageous in recesses of the workpiece 1, resulting in a particularly advantageous removal of the oxide layer of cut surfaces and cut edges of the workpiece 1 results and a rounding of the edges is possible.
  • the processing elements 3 may also have support bristles which stabilize the slanted bristles 9 and thus improve their penetration into recesses of the workpiece 1.
  • the support bristles can be made shorter and have a correspondingly high bending force.
  • a vertical or rectangular arrangement of the support bristles to the surface of the processing elements 3 has been found to be advantageous.
  • the bristles 9 may be advantageously formed as roped bristles.
  • the bristles 9 are covered by a jacket in a stabilizing or supporting manner.
  • the sheath can serve as an alternative to the support bristles.
  • the sheath may preferably extend from the lower end of the bristles 9 to approximately the middle of the bristles 9.
  • each processing element 3 carries bristles 9.
  • the processing elements 3 have at one end a groove 10 and at the other end a spring 11, by means of which the processing elements 3 are connectable to each other. A rotation of the processing elements 3 is prevented by the tongue and groove connection in a simple and advantageous manner.
  • the processing elements 3 viewed in the circumferential direction lateral projections 12.
  • the projections 12 make it possible for the processing elements 3 to be supported on a larger surface of the V-belt 8.
  • the processing elements 3 have two projections 12 on each side.
  • the projections 12 are preferably formed integrally with the processing element 3.
  • the processing elements 3 are screwed in the exemplary embodiment by means of a fastening screw 13 with the V-belt 8.
  • 8 holes 14 are introduced or can be introduced in the V-belt.
  • the processing elements 3 have at their the V-belt 8 facing the underside an opening, not shown, which serves for screwing with the fastening screws 13.
  • a processing element 3 has an elongated spring 11a.
  • the spring 11a or the nose of this processing elements 3 serves to compensate for possible belt tolerances and can be correspondingly reduced or removed.
  • an extension of the spring 11a by 1 to 3 mm is sufficient to serve as tolerance compensation.
  • a processing element 3 with an extended spring 11a per V-belt 8 is sufficient.
  • a rotational speed of the processing elements 3 with the bristles 9 of preferably 14 to 16 m / s, is particularly advantageous. This speed ensures, on the one hand, a rapid processing of the workpieces 1 and, on the other hand, has proved to be suitable with regard to the reliability of the machining and the loading of the components involved.
  • the bristles 9 are subject to a corresponding wear during operation of the device and must therefore be replaced, it may be provided to either detach the processing elements 3 from the belt 8 and unscrew new processing elements 3 or raise a completely new V-belt 8 with processing elements 3.
  • V-belt 8 As an alternative to the V-belt 8, a toothed belt, a flat belt (eg with knobs), a chain, a belt or the like may be provided.
  • the in the FIGS. 2 to 5 shown V-belt 8 may be formed of rubber, plastic, synthetic rubber or preferably made of neoprene.
  • V-belt 8 a commercially available V-belt or force band is preferably used.
  • Fig. 5 shows one to the FIGS. 2 to 4 alternative embodiment of the V-belt 8 and the processing elements 3.
  • the in Fig. 1 In principle, the device according to the invention can readily with both the embodiment according to Fig. 2 as well as with the embodiment according to Fig. 5 operate.
  • the processing elements 3 are formed in this embodiment as abrasive papers, with 3 support elements 15 are arranged between the sandpaper reindeer.
  • the support elements 15 arranged between the abrasive papers 3 are designed in the exemplary embodiment as support webs 15 or as nonwoven webs.
  • Fig. 5 are several abrasive papers 3 summarized as processing unit 4.
  • processing unit 4 is in detail in the FIGS. 6 to 9 shown.
  • the processing unit 4 is constructed in such a way that between each two abrasive papers 3 a supporting fleece 15 and in the circumferential direction behind the last sandpaper 3 a supporting felt 16 is arranged.
  • the abrasive papers 3, the backup nonwovens 15 and the support felt 16 are connected to a support member 17 of the processing unit 4 by pouring.
  • the carrier element 17 is for this purpose preferably made of cast resin. However, a plastic training is also possible.
  • the abrasive papers 3, the backing fleece 15 and the support felt 16 can also be glued or stapled.
  • the processing unit 4 can be bolted to the V-belt 8, glued, potted, punched or welded. In the exemplary embodiment, it is provided that the processing unit 4 is screwed to the V-belt 8. For this purpose, a bore 14 can be introduced or introduced in the V-belt 8, through which a fastening screw 13 can be inserted.
  • the carrier element 17 of the processing unit 4 has analogously on its underside a threaded bush 18 or an internal thread.
  • a guide rail 19 is adhered.
  • the guide bar can also be welded or vulcanised.
  • the carrier element 17 of the processing unit 4 in this case has on its side facing the belt 8 a groove 20 for receiving the guide rail 19.
  • V-belt 8 can otherwise analogous to the belt 8 of the Fig. 2 be educated.
  • the abrasive papers 3, the backing webs 15 and the backing felt 16 in about the same height and the same width.
  • the sandpaper 3 preferably has a width of 25 to 75 mm and a height of 30 to 90 mm.
  • the abrasive papers 3 have a width of 50 mm and a height of 60 mm.
  • the processing units 4 are formed from a plurality of abrasive papers 3, wherein each processing unit may have, for example, five to twenty abrasive papers 3. In the exemplary embodiment, it is provided that each processing unit 4 has twelve abrasive papers.
  • the length of a processing unit 4 may be e.g. 30 to 90 mm. In the embodiment, a length of 66 mm is provided.
  • the support web 15 may for example have a thickness of 2 to 10 mm, preferably 5 mm.
  • the thickness of the backing felt 16 may be e.g. 1 to 8 mm, preferably 3 mm.
  • the abrasive papers 3 starting from their the workpiece to be machined facing end 1 have longitudinal slots which extend at least over part of the height of the abrasive papers 3 in the direction of the support member 17.
  • the abrasive papers 3, the backing webs 15 and the backing felt 16 are formed close to each other.
  • the rotational speed of the processing units 4 with the abrasive papers 3 of 7 to 8 m / s is particularly advantageous for the processing result.
  • the combination of several abrasive papers 3 to a processing unit 4 makes it possible inter alia that the processing elements 3 can be changed quickly and easily attached. Due to the occurring wear this is of particular importance.
  • the V-belt 8 can either be provided with new processing elements 3 or the entire device can be equipped with a new V-belt 8, to which the processing elements 3 and the processing units 4 are already applied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Laser Beam Processing (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

A laser cutting process on a metal workpiece leaves a layer of oxide that is subsequently removed by an emery cloth belt presented at a transverse angle to or in line with the advancing work piece. The emery cloth is applied as a sandwich block with parallel emery cloth panels separated by pads.

Description

Die Erfindung betrifft eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks, mit wenigstens einer mit Bearbeitungselementen versehenen umlaufenden Fördereinrichtung, wobei die Fördereinrichtung die Bearbeitungselemente schräg bzw. quer zur Vorschubrichtung des Werkstücks im Bereich des zu bearbeitenden Werkstücks wenigstens annähernd linear vorbeiführt.The invention relates to a device for processing a strip-shaped or plate-shaped metallic workpiece, with at least one circulating conveyor provided with processing elements, wherein the conveyor at least approximately linearly passes the processing elements obliquely or transversely to the feed direction of the workpiece in the region of the workpiece to be machined.

Die Erfindung betrifft außerdem eine Bearbeitungseinheit für eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks.The invention also relates to a processing unit for a device for processing a strip-shaped or plate-shaped metal workpiece.

Eine gattungsgemäße Vorrichtung ist aus der DE 103 20 295 A1 bekannt.A generic device is from the DE 103 20 295 A1 known.

Beim Laserschneiden von metallischen. Werkstücken bildet sich an den Schnittkanten sowie an den Schnittflächen eine Oxidschicht bzw. eine Oxidhaut. Von Nachteil bei der Oxidschicht ist, dass eine darauf aufgetragene Lackierung oder Verzinkung relativ schnell wieder abspringt. Aus diesem Grund werden die metallischen Werkstücke vor dem Lackieren und Verzinken abgeschliffen.When laser cutting metallic. Workpieces forms an oxide layer or an oxide skin at the cut edges and at the cut surfaces. A disadvantage of the oxide layer is that a paint or zinc coating applied to it bounces off relatively quickly. For this reason, the metallic workpieces are ground off before painting and galvanizing.

Ferner ist es in der Regel notwendig, dass die Kanten, insbesondere die Schnittkanten entgratet bzw. verrundet werden. Des weiteren kann es vorteilhaft sein, die Oberflächen des band- oder plattenförmigen metallischen Werkstücks fein zu schleifen.Furthermore, it is generally necessary for the edges, in particular the cut edges, to be deburred or rounded. Furthermore, it may be advantageous to finely grind the surfaces of the strip or plate-shaped metal workpiece.

Ein besonders vorteilhaftes Verfahren zum Entfernen der Oxidschicht sowie zum Entgraten der (Schnitt-) Kanten sowie der Schnittflächen ist aus der DE 103 20 295 A1 bekannt. Dabei ist eine mit wenigstens einem Bearbeitungselement versehene umlaufende Fördereinrichtung vorgesehen, wobei die Fördereinrichtung das wenigstens eine Bearbeitungselement im Bereich des zu bearbeitenden Werkstücks wenigstens annähernd linear vorbeiführt.A particularly advantageous method for removing the oxide layer and for deburring the (cut) edges and the cut surfaces is from the DE 103 20 295 A1 known. In this case, a provided with at least one processing element circulating conveyor is provided, wherein the conveyor at least approximately linearly passes the at least one processing element in the region of the workpiece to be machined.

Da das Bearbeitungselement aufgrund der Anordnung an einer umlaufenden Fördereinrichtung nicht starr auf einer Position verharrt, sondern auf der ganzen Länge, die zur Durchführung des Werkstücks vorhanden ist, vorbeigeführt wird, ist eine gleichmäßige Abnutzung des wenigstens einen Bearbeitungselements gewährleistet. Das Werkstück kann dabei in einfacher Weise schräg, vorzugsweise quer zur Umlaufrichtung des Bearbeitungselements durchgeführt bzw. durchgezogen werden, so dass das Werkstück gleichmäßig von dem Bearbeitungselement bearbeitet wird.Since the processing element does not remain rigidly on a position due to the arrangement on a revolving conveyor, but is guided past the entire length which is present for the passage of the workpiece, uniform wear of the at least one processing element is ensured. The workpiece can be carried out in a simple manner obliquely, preferably transversely to the direction of rotation of the processing element or pulled through, so that the workpiece is processed evenly by the processing element.

Aufgrund des linearen Verlaufes des Bearbeitungselements im Bereich des zu bearbeitenden Werkstücks ist sichergestellt, dass das Bearbeitungselement in alle Aussparungen oder Löcher des Werkstückes eindringt und somit die Oxidschicht an allen Schnittflächen und Schnittkanten entfernt. Das schräg bzw. quer zur Vorschubrichtung des Werkstücks auf dem Werkstück entlanggezogene Bearbeitungselement dringt, ähnlich wie ein Pinsel, der auf einem Metallstück entlanggezogen wird, in jede Aussparung ein.Due to the linear course of the processing element in the region of the workpiece to be machined, it is ensured that the processing element penetrates into all recesses or holes of the workpiece and thus removes the oxide layer at all cut surfaces and cut edges. The obliquely or transversely to the feed direction of the workpiece on the workpiece along drawn workpiece penetrates, similar to a brush, which is pulled along on a piece of metal, in each recess.

In vorteilhafter Weise werden mit der gattungsgemäßen Vorrichtung sowohl die Oberflächen, d.h. die Hauptflächen des band- oder plattenförmigen metallischen Werkstücks bearbeitet, als auch die Schnittflächen und Schnittkanten entzundert. Die Vorrichtung entgratet außerdem die Kanten und Schnittflächen und kann zum Feinschleifen eingesetzt werden.Advantageously, with the generic device both the surfaces, i. the main surfaces of the band- or plate-shaped metal workpiece processed as well as the cut surfaces and cut edges descaled. The device also deburrs the edges and cut surfaces and can be used for fine grinding.

Zum weiteren Stand der Technik wird auf die DE 197 39 895 C2 verwiesen.For further prior art is on the DE 197 39 895 C2 directed.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Vorrichtung weiterzuentwickeln, um insbesondere eine besonders kostengünstige und gleichmäßige Bearbeitung von band-oder plattenförmigen metallischen Werkstücken zu erreichen, wobei die Vorrichtung einfach zu montieren und zu warten sein soll.The present invention has for its object to further develop the generic device, in particular to achieve a particularly cost-effective and uniform machining of band-shaped or plate-shaped metal workpieces, the device should be easy to assemble and maintain.

Der vorliegenden Aufgabe liegt auch die Aufgabe zugrunde eine Bearbeitungseinheit für eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks zu schaffen, wobei das Bearbeitungselement bzw. die Bearbeitungseinheit ein gleichmäßiges und schnelles Bearbeiten der band- oder plattenförmigen metallische Werkstücke ermöglichen und einfach zu wechseln sein soll.It is an object of the present invention to provide a machining unit for a device for machining a band-shaped or plate-shaped metal workpiece, wherein the machining element or the machining unit permit a uniform and rapid machining of the band-shaped or plate-shaped metal workpieces and can be easily changed should.

Erfindungsgemäß wird diese Aufgabe bezüglich der zu schaffenden Vorrichtung durch Anspruch 1 gelöst.According to the invention this object is achieved with respect to the device to be created by claim 1.

Bezüglich einer vorteilhaften Bearbeitungseinheit wird diese Aufgabe erfindungsgemäß durch Anspruch 13 gelöst.With regard to an advantageous processing unit, this object is achieved by claim 13.

Aus Anspruch 15 ergibt sich ein bevorzugter Keilriemen mit einer Mehrzahl an Bearbeitungseinheiten gemäß Anspruch 13.From claim 15 results in a preferred V-belt with a plurality of processing units according to claim 13.

Dadurch, dass die Bearbeitungselemente gemäß Anspruch 1 als Schleifpapiere ausgebildet und zwischen den Schleifpapieren Stützelemente angeordnet sind, ergibt sich eine vorteilhafte Einsatzmöglichkeit der erfindungsgemäßen Vorrichtung. Durch die Schleifpapiere lässt sich einerseits die Oxidschicht von den Schnittflächen und Schnittkanten entfernen, andererseits können die Kanten entgratet und verrundet werden. Auch ein Feinschleifen des band- oder plattenförmigen metallischen Werkstücks ist durch die Schleifpapiere möglich. Die Schleifpapiere können in unterschiedlichen Körnungen, beispielsweise einer 60er oder 120er Körnung eingesetzt werden. Die Ausbildung der Bearbeitungselemente als Schleifpapiere ist kostengünstig möglich. Durch die Stützelemente erhalten die Schleifpapiere einerseits eine gewünschte Stabilität, andererseits wird vermieden, dass sich die Schleifpapiere gegenseitig aufreiben, d.h. dass das in Umlaufrichtung jeweils hintere Schleifpapier den Rücken des vorderen Schleifpapiers aufreibt. Die Stützelemente sind als Stützvliese ausgebildet, da sich eine Ausbildung aus einem Vliesmaterial als besonders geeignet herausgestellt hat.The fact that the processing elements are designed according to claim 1 as abrasive papers and arranged between the abrasive papers support elements, there is an advantageous use of the device according to the invention. On the one hand, the abrasive paper can be used to remove the oxide layer from the cut surfaces and cut edges; on the other hand, the edges can be deburred and rounded. Even a fine grinding of the band or plate-shaped metal workpiece is possible by the sandpaper. The sanding papers can be used in different grain sizes, for example a 60 or 120 grit. The formation of the processing elements as sandpaper is inexpensive possible. On the one hand, the abrasive papers on the one hand obtain a desired stability by means of the support elements, on the other hand it is avoided that the sanding papers rub against each other, i. that in the circumferential direction in each case rear sandpaper rubs the back of the front sandpaper. The support elements are designed as supporting fleeces, since an embodiment of a nonwoven material has proven to be particularly suitable.

Erfindungsgemäß sind mehrere Schleifpapiere als Bearbeitungseinheit zusammengefasst wobei zwischen den Schleifpapieren jeweils ein Stützvlies angeordnet ist.According to the invention, a plurality of abrasive papers are combined as a processing unit, wherein in each case a supporting fleece is arranged between the abrasive papers is.

In einer besonders vorteilhaften Ausgestaltung ist vorgesehen, dass hinter dem letzten Schleifpapiere ein Stützfilz angeordnet ist.In a particularly advantageous embodiment, provision is made for a support felt to be arranged behind the last abrasive paper.

Wie der Erfinder herausgefunden hat, ist die Anordnung eines Stützfilzes in Umlaufrichtung hinter dem letzten Schleifpapier besonders geeignet, da Filz einerseits langlebiger als Vlies ist und andererseits eine höhere Biegebelastung aufnehmen kann.As the inventor has found, the arrangement of a supporting felt in the circumferential direction behind the last sandpaper is particularly suitable since felt is on the one hand more durable than nonwoven and on the other hand can absorb a higher bending load.

Besonders vorteilhaft ist es, wenn der Stützvlies schleifende, insbesondere feinschleifende Eigenschaften aufweist und somit zusätzlich zu der Stützfunktion auch zur Bearbeitung des Werkstücks beiträgt.It is particularly advantageous if the backing fleece has abrasive properties, in particular finely abrasive properties, and thus also contributes to the machining of the workpiece in addition to the support function.

Erfindungsgemäß kann vorgesehen sein, dass die Schleifpapiere und die Stützelemente in etwa die gleiche Höhe und die gleiche Breite aufweisen.According to the invention it can be provided that the abrasive papers and the support elements have approximately the same height and the same width.

Vorzugsweise können die Schleifpapiere, die Stützvliese und der Stützfilz in ein Trägerelement der Bearbeitungseinheit eingegossen sein. Vorgesehen sein kann dabei, dass die Schleifpapiere, die Stützvliese und der Stützfilz in das Trägerelement bzw. eine Form eingesetzt und anschließend miteinander vergossen werden. Die derart gebildete Bearbeitungseinheit kann beispielsweise durch eine Verschraubung in einfacher Weise mit einem Riemen der Fördereinrichtung verschraubt werden. Vorteilhaft ist es dabei, wenn die Bearbeitungseinheit an ihrer Unterseite bzw. das Trägerelement der Bearbeitungseinheit an seiner Unterseite eine Gewindeöffnung aufweist bzw. mit einer Gewindebuchse versehen ist. Vorteilhaft kann es außerdem sein, wenn der Riemen der Fördereinrichtung entsprechend angepasste Durchgangsbohrungen aufweist, wodurch einerseits die Position der Bearbeitungseinheiten festgelegt wird und andererseits ein einfaches Verschrauben möglich ist.Preferably, the abrasive papers, the backing webs and the backing felt may be cast into a backing member of the processing unit. It can be provided that the abrasive papers, the backing fleeces and the backing felt are inserted into the carrier element or a mold and then cast together. The processing unit thus formed can be screwed by a screw in a simple manner with a belt of the conveyor, for example. It is advantageous if the processing unit has on its underside or the support element of the processing unit on its underside a threaded opening or is provided with a threaded bushing. It may also be advantageous if the belt of the conveyor has correspondingly adapted through holes, whereby on the one hand the position of the processing units is determined and on the other hand a simple screwing is possible.

Eine stabile, insbesondere verdrehsichere Befestigung der Bearbeitungseinheiten auf dem Riemen dadurch unterstützt wird, dass auf den Riemen eine Führungsleiste aufgebracht ist. Die Bearbeitungseinheit weist an ihrer dem Keilriemen zugewandten Unterseite eine Nut zur Aufnahme der Führungsleiste auf. Ein Verdrehen der Bearbeitungseinheit auf dem Keilriemen wird somit in einfacher Weise vermieden, wodurch ein gleichmäßiges und ablaufoptimiertes Bearbeitungsergebnis entsteht. Die Flanken der Nut können gegebenenfalls leicht angeschrägt sein (beispielsweise um 2 bis 8°, vorzugsweise 5°), so dass sich die Nut in Richtung auf den Nutboden leicht verjüngt.A stable, in particular secure against rotation attachment of the processing units on the belt is supported by the fact that a guide strip is applied to the belt. The processing unit has on its side facing the belt V-belt on a groove for receiving the guide bar. A rotation of the processing unit on the V-belt is thus avoided in a simple manner, whereby a uniform and process-optimized processing results. The flanks of the groove may optionally be slightly bevelled (for example by 2 to 8 °, preferably 5 °), so that the groove tapers slightly in the direction of the groove bottom.

Die Schleifpapiere können vorzugsweise eine Breite von 50 mm aufweisen. Diese Werte haben sich in Versuchen als besonders geeignet herausgestellt, um band- oder plattenförmige metallische Werkstücke effektiv bearbeiten zu können. Vorteilhaft ist es dabei, wenn das Schleifpapier Längsschlitze aufweist, die von dem dem zu bearbeitenden Werkstück zugewandten Ende ausgehen und sich wenigstens über einen Teil der Höhe der Schleifpapiere in Richtung auf das Trägerelement erstrecken. Alternativ dazu können die Schleifpapiere auch jeweils als einzelne Schleiflamellen ausgebildet sein. Eine bevorzugte, insbesondere prozesssichere und kostengünstige Ausgestaltung ergibt sich jedoch dadurch, dass Schleifpapiere mit mehreren Längsschlitzen eingesetzt werden.The abrasive papers may preferably have a width of 50 mm. These values have proven to be particularly suitable in experiments to be able to work effectively on strip or plate-shaped metal workpieces. It is advantageous if the sandpaper has longitudinal slots which extend from the end facing the workpiece to be machined and extend at least over part of the height of the abrasive papers in the direction of the support member. Alternatively, the abrasive papers can also be designed in each case as a single grinding lamellae. However, a preferred, in particular process-reliable and cost-effective embodiment results from the fact that abrasive papers having a plurality of longitudinal slots are used.

Eine bevorzugte Bearbeitungseinheit für eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks ergibt sich aus Anspruch 13.A preferred processing unit for a device for processing a strip-shaped or plate-shaped metallic workpiece results from claim 13.

Ein bevorzugter Keilriemen ergibt sich aus Anspruch 15. Dabei kann vorgesehen sein, dass der Keilriemen umlaufend mit hintereinander angeordneten Bearbeitungseinheiten versehen ist, wobei die Bearbeitungseinheiten vorzugsweise mit dem Keilriemen verschraubt sind. Die Bearbeitungseinheiten sind hierbei aus einer Mehrzahl von Schleifpapieren aufgebaut, wobei zwischen zwei Schleifpapieren jeweils ein Stützvlies ausgebildet ist.A preferred V-belt results from claim 15. It can be provided that the V-belt is circumferentially provided with successively arranged processing units, wherein the processing units are preferably bolted to the V-belt. The processing units are in this case constructed of a plurality of abrasive papers, wherein between each two abrasive papers each a support web is formed.

In Umlaufrichtung kann hinter dem letzten Schleifpapier ein Stützfilz angeordnet sein.In the direction of rotation, a support felt can be arranged behind the last sandpaper.

In Versuchen hat es sich als besonders geeignet herausgestellt, wenn der Riemen als dreifacher Keilriemen ausgebildet ist. Die Auskragungen der Bearbeitungselemente ermöglichen dabei eine Abstützung auf allen drei Riemen. Die auftretenden Kräfte werden somit gleichmäßig verteilt und die Belastungen entsprechend gering gehalten.In experiments, it has been found to be particularly suitable when the belt is designed as a triple V-belt. The protrusions of the processing elements allow it to be supported on all three belts. The forces are thus distributed evenly and kept the loads correspondingly low.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den weiteren Unteransprüchen. Nachfolgend ist anhand der Figuren 1 und 5-9 ein Ausführungsbeispiel der Erfindung prinzipmäßig dargestellt.Advantageous embodiments of the invention will become apparent from the other dependent claims. The following is based on the FIGS. 1 and 5-9 an embodiment of the invention shown in principle.

Die Figuren 2 bis 4 stellen kein Ausführungsbeispiel der Erfindung dar.The FIGS. 2 to 4 do not represent an embodiment of the invention.

Es zeigt:

Fig. 1
eine Seitenansicht der erfindungsgemäßen Vorrichtung mit vier umlaufenden Fördereinrichtungen;
Fig. 2
ein Riemen der Vorrichtung, auf dem mit Borsten versehe- ne Bearbeitungselemente angeordnet sind;
Fig. 3
eine Seitenansicht auf mehrere Bearbeitungselemente, die gemäß Fig. 2 mit dem Riemen verschraubt sind, wobei aus Übersichtlichkeitsgründen nur das in Bewegungsrichtung hinten liegende Bearbeitungselement mit Borsten versehen ist;
Fig. 4
eine Darstellung mehrerer Bearbeitungselemente gemäß Pfeilrichtung IV der Fig. 3;
Fig. 5
ein Riemen der erfindungsgemäßen Vorrichtung; auf dem prinzipmäßig dargestellt eine Bearbeitungseinheit ange- ordnet ist, welche eine Mehrzahl an Bearbeitungselemen- ten aufweist, die als Schleifpapiere ausgebildet und zwischen denen Stützelemente angeordnet sind;
Fig. 6
eine perspektivische Darstellung einer Bearbeitungsein- heit, welche mehrere Schleifpapiere aufweist, zwischen denen jeweils ein Stützvlies und in Umlaufrichtung hinter dem letzten Schleifpapier ein Stützfilz angeordnet ist;
Fig. 7
eine Seitenansicht der Bearbeitungseinheit gemäß Fig. 6;
Fig. 8
eine vergrößerte Einzeldarstellung gemäß VIII der Fig. 7; und
Fig. 9
eine Draufsicht auf eine Bearbeitungseinheit gemäß Pfeilrichtung IX der Fig. 7.
It shows:
Fig. 1
a side view of the device according to the invention with four rotating conveyors;
Fig. 2
a belt of the device, are arranged on the bristle-th processing elements;
Fig. 3
a side view of several processing elements, according to Fig. 2 are bolted to the belt, for reasons of clarity, only in the direction of movement downstream processing element is provided with bristles;
Fig. 4
a representation of several processing elements according to arrow IV of the Fig. 3 ;
Fig. 5
a belt of the device according to the invention; on the principle represented a processing unit is arranged, which has a plurality of processing elements, formed as abrasive papers and between which support elements are arranged;
Fig. 6
a perspective view of a processing unit, which has a plurality of abrasive papers, between each of which a support web and in the circumferential direction behind the last sandpaper a support felt is arranged;
Fig. 7
a side view of the processing unit according to Fig. 6 ;
Fig. 8
an enlarged detail according to VIII of Fig. 7 ; and
Fig. 9
a plan view of a processing unit according to arrow IX of the Fig. 7 ,

Fig. 1 zeigt eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks 1. Die erfindungsgemäße Vorrichtung eignet sich in besonderer Weise zum Entfernen der Oxidschicht von Schnittflächen und/oder Schnittkanten des Werkstücks 1 sowie zum Entgraten der Kanten. Dabei können sowohl umlaufende Schnittflächen und Schnittkanten des Werkstücks 1 als auch Schnittflächen und Schnittkanten von Aussparungen, Löchern oder dergleichen in dem Werkstück 1 entzudert und entgratet werden. Fig. 1 shows a device for processing a band- or plate-shaped metal workpiece 1. The inventive device is particularly suitable for removing the oxide layer of cut surfaces and / or cutting edges of the workpiece 1 and for deburring the edges. In this case, both circumferential cut surfaces and cut edges of the workpiece 1 as well as cut surfaces and cut edges of recesses, holes or the like in the workpiece 1 can be bled and deburred.

Fig. 1 zeigt dabei eine besonders bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung mit vier Fördereinrichtungen 2. Prinzipiell kann auch eine Vorrichtung eingesetzt werden, die lediglich eine Fördereinrichtung 2 aufweist. Die Fördereinrichtungen 2 sind mit den nachfolgend anhand der Figuren 2 bis 9 im Detail beschriebenen Bearbeitungselementen 3 bzw. Bearbeitungseinheiten 4 versehen. Die Fördereinrichtungen 2 führen die Bearbeitungselemente 3 bzw. die Bearbeitungseinheiten 4 im Bereich des zu bearbeitenden Werkstücks 1 wenigstens annähernd linear vorbei. Das zu bearbeitende Werkstück 1 wird dabei zwischen den Fördereinrichtungen 2 quer zur Umlaufrichtung der Fördereinrichtungen 2 durchgeführt bzw. durchgezogen. Zum Auflegen des Werkstücks 1 kann dabei ein Blecheinschub 5 vorgesehen sind. Zur Ausgabe des Werkstücks 1 ist ein Ablagetisch 6 vorgesehen. Im Ausführungsbeispiel gemäß Fig. 1 sind Vorschubwalzen 7 vorgesehen, welche eine gleichmäßige und zuverlässige Beförderung des Werkstücks 1 quer zu den Umlaufrichtungen der Fördereinrichtung 2 gewährleistet. Fig. 1 shows a particularly preferred embodiment of the device according to the invention with four conveyors 2. In principle, a device can be used which has only one conveyor 2. The conveyors 2 are with the following with reference to the FIGS. 2 to 9 in detail described processing elements 3 and 4 processing units provided. The conveyors 2 guide the processing elements 3 or the processing units 4 at least approximately linearly in the area of the workpiece 1 to be processed. The workpiece 1 to be machined is carried out or pulled through between the conveyors 2 transversely to the direction of rotation of the conveyors 2. For placing the workpiece 1 while a sheet metal insert 5 are provided. For the output of the workpiece 1, a storage table 6 is provided. In the embodiment according to Fig. 1 Feed rollers 7 are provided, which ensures a uniform and reliable transport of the workpiece 1 transverse to the directions of rotation of the conveyor 2.

Durch die in Fig. 1 dargestellte erfindungsgemäße Lösung mit vier Fördereinrichtungen 2 ist es möglich, das Werkstück 1 in einem Durchgang komplett zu bearbeiten. Ein erneutes Einführen des Werkstücks 1 ist nicht notwendig.By the in Fig. 1 illustrated solution according to the invention with four conveyors 2, it is possible to work the workpiece 1 in one go completely. Re-insertion of the workpiece 1 is not necessary.

In nicht näher dargestellter Weise kann eine Verstelleinrichtung vorgesehen sein, mittels derer die Eingriffstiefe der Bearbeitungselemente 3 bzw. der Bearbeitungseinheiten 4 variiert werden kann. Dies ist insbesondere zur Korrektur der Abnutzung der Bearbeitungselemente 3 und gegebenenfalls zur Erhöhung des Drucks vorteilhaft.In an unspecified manner, an adjusting device can be provided, by means of which the depth of engagement of the processing elements 3 and the processing units 4 can be varied. This is particularly advantageous for correcting the wear of the processing elements 3 and optionally for increasing the pressure.

Die Fördereinrichtungen 2 sind in Durchlaufrichtung des Werkstücks 1 leicht versetzt zueinander angeordnet. Somit ist zum einen sichergestellt, dass sich die jeweiligen Bearbeitungselemente 3 bzw. Bearbeitungseinheiten 4 der Fördereinrichtung 2 nicht gegenseitig behindern, zum anderen ist trotzdem ein gleichmäßiger und ausgewogener Druck der Bearbeitungselemente 3 bzw. der Bearbeitungseinheiten 4 sichergestellt, der sich gegenseitig ausgleicht, so dass das Werkstück 1 nicht zum Verkippen neigt.The conveyors 2 are arranged slightly offset from one another in the direction of passage of the workpiece 1. Thus, on the one hand it is ensured that the respective processing elements 3 or processing units 4 of the conveyor 2 do not interfere with one another, on the other hand a uniform and balanced pressure of the processing elements 3 or of the processing units 4 is ensured, which compensates for each other Workpiece 1 does not tend to tilt.

Bei der in Fig. 1 dargestellten erfindungsgemäßen Vorrichtung handelt es sich um eine Variante, bei der die Fördereinrichtungen 2 liegend angeordnet sind, so dass die Bearbeitungselemente 3 bzw. die Bearbeitungseinheiten 4 im Bereich des Werkstücks 1 im wesentlichen horizontal verlaufen.At the in Fig. 1 The device according to the invention shown is a variant in which the conveyors 2 are arranged lying, so that the processing elements 3 and the processing units 4 in the region of the workpiece 1 are substantially horizontal.

Alternativ dazu kann die erfindungsgemäße Lösung in nicht dargestellter Weise mit stehend angeordneten Fördereinrichtungen 2 versehen sein.Alternatively, the solution according to the invention may be provided in a manner not shown with standing arranged conveyors 2.

Bei der in Fig. 1 dargestellten Ausgestaltung der erfindungsgemäßen Vorrichtung mit vier Fördereinrichtungen 2 ist es vorteilhaft, wenn jede der beiden Hauptflächen des Werkstücks 1 von jeweils zwei gegenläufig umlaufenden Fördereinrichtungen 2 bearbeitet wird.At the in Fig. 1 illustrated embodiment of the device according to the invention with four conveyors 2, it is advantageous if each of the two main surfaces of the workpiece 1 is processed by two counter-rotating conveyor 2 each.

Die Bearbeitungselemente 3 bzw. die Bearbeitungseinheiten 4 sind an einem Riemen 8 angeordnet, der Teil der jeweiligen Fördereinrichtung 2 ist und in der beschriebenen Art und Weise quer zur Vorschubrichtung des Werkstücks 1 umläuft.The processing elements 3 and the processing units 4 are arranged on a belt 8, which is part of the respective conveyor 2 and rotates in the manner described transversely to the feed direction of the workpiece 1.

Bezüglich weiterer vorteilhafter Ausgestaltungen und der technischen Funktionsweise der in Fig. 1 dargestellten erfindungsgemäßen Lösung wird auf die DE 103 20 295 A1 verwiesen.With respect to further advantageous embodiments and the technical operation of the in Fig. 1 illustrated solution according to the invention is applied to the DE 103 20 295 A1 directed.

Fig. 2 zeigt einen derartigen Riemen 8 in einer Ausführungsform als Keilriemen. Der Keilriemen ist dabei als dreifacher Keilriemen 8 ausgebildet. Auf dem Keilriemen 8 ist eine Mehrzahl von Bearbeitungselementen 3 hintereinandergereiht angeordnet, wobei in Fig. 2 aus Übersichtlichkeitsgründen nur ein Teil der Bearbeitungselemente 3 dargestellt ist. Prinzipiell ist vorgesehen, dass die Bearbeitungselemente 3 hintereinandergereiht vollständig um den Riemen 8 umlaufen, also eine geschlossene Kette bilden. Die Bearbeitungselemente 3 sind mit Borsten 9 versehen. Die Borsten 9 sind dabei in bekannter Weise aus Metall gebildet. In einer einfachen Darstellung können die Borsten 9 gerade verlaufend ausgebildet sein. Vorteilhaft ist jedoch die Ausbildung der Borsten 9 mit einem gewellten oder gedrehten Verlauf, so dass die Borsten 9 einem struppigen Pinsel bzw. einem Büschel ähneln. Fig. 2 shows such a belt 8 in one embodiment as a V-belt. The V-belt is designed as a triple V-belt 8. On the V-belt 8, a plurality of processing elements 3 arranged in series, wherein in Fig. 2 for reasons of clarity, only a part of the processing elements 3 is shown. In principle, it is provided that the processing elements 3 in a row completely rotate around the belt 8, thus forming a closed chain. The processing elements 3 are provided with bristles 9. The bristles 9 are formed in a known manner from metal. In a simple representation, the bristles 9 may be straight. However, it is advantageous to form the bristles 9 with a corrugated or twisted course, so that the bristles 9 resemble a scrubby brush or a tuft.

Die Borsten 9 können in Bündeln in die Bearbeitungselemente 3 eingeschossen werden. Die Bearbeitungselemente 3 können dabei beispielsweise aus Kunststoff ausgebildet und entsprechende Aufnahmebohrungen aufweisen.The bristles 9 can be shot in bundles in the processing elements 3. The editing elements 3 can be made of plastic, for example, and have corresponding mounting holes.

Zum vorteilhaften Befestigen der Borsten 9 können die Borsten 9 mit nicht näher dargestellten Widerhaken versehen sein.For advantageous fastening of the bristles 9, the bristles 9 may be provided with not shown barbs.

Die Borsten 9 können bis zu 45°, vorzugsweise um 15°, in Umlaufrichtung des Keilriemens 8 geneigt sein. D.h. die Spitzen der Borsten 9 befinden sich in Umlaufrichtung vor dem entsprechend abgewandten Ende der Borsten 9, welches mit dem Bearbeitungselemente 3 verbunden ist. Wie sich in Versuchen herausgestellt hat, dringen die um 15° schräg gestellten Borsten 9 besonders vorteilhaft in Aussparungen des Werkstücks 1 ein, woraus ein besonders vorteilhaftes Entfernen der Oxidschicht von Schnittflächen und Schnittkanten des Werkstücks 1 resultiert und eine Verrundung der Kanten möglich ist.The bristles 9 may be inclined up to 45 °, preferably by 15 °, in the direction of rotation of the belt 8. That the tips of the bristles 9 are in the direction of rotation in front of the correspondingly opposite end of the bristles 9, which is connected to the processing elements 3. As has been found in experiments, penetrate the inclined by 15 ° bristles 9 penetrate particularly advantageous in recesses of the workpiece 1, resulting in a particularly advantageous removal of the oxide layer of cut surfaces and cut edges of the workpiece 1 results and a rounding of the edges is possible.

In nicht dargestellter Weise können die Bearbeitungselemente 3 auch Stützborsten aufweisen, welche die schräggestellten Borsten 9 stabilisieren und somit deren Eindringverhalten in Aussparungen des Werkstücks 1 verbessern sollen. Die Stützborsten können dabei kürzer ausgebildet sein und eine entsprechend hohe Biegekraft aufweisen. Eine senkrechte bzw. rechtwinklige Anordnung der Stützborsten zu der Oberfläche der Bearbeitungselemente 3 hat sich als vorteilhaft herausgestellt.In a manner not shown, the processing elements 3 may also have support bristles which stabilize the slanted bristles 9 and thus improve their penetration into recesses of the workpiece 1. The support bristles can be made shorter and have a correspondingly high bending force. A vertical or rectangular arrangement of the support bristles to the surface of the processing elements 3 has been found to be advantageous.

Die Borsten 9 können in vorteilhafter Weise als geseilte Borsten ausgebildet sein.The bristles 9 may be advantageously formed as roped bristles.

In einer alternativen, ebenfalls nicht dargestellten Ausgestaltung kann auch vorgesehen sein, dass die Borsten 9 von einer Ummantelung stabilisierend bzw. stützend umfasst sind. Die Ummantelung kann dabei als Alternative zu den Stützborsten dienen. Die Ummantelung kann sich vorzugsweise vom unteren Ende der Borsten 9 bis in etwa zur Mitte der Borsten 9 erstrecken.In an alternative embodiment, also not shown, it can also be provided that the bristles 9 are covered by a jacket in a stabilizing or supporting manner. The sheath can serve as an alternative to the support bristles. The sheath may preferably extend from the lower end of the bristles 9 to approximately the middle of the bristles 9.

Gemäß den Figuren 2, 3 und 4 ist aus Übersichtlichkeitsgründen lediglich ein Bearbeitungselement 3 mit Borsten 9 dargestellt. Grundsätzlich ist vorgesehen, dass jedes Bearbeitungselement 3 Borsten 9 trägt.According to the FIGS. 2, 3 and 4 For reasons of clarity, only one processing element 3 with bristles 9 is shown. In principle, it is provided that each processing element 3 carries bristles 9.

Die Bearbeitungselemente 3 weisen an einem Ende eine Nut 10 und am anderen Ende eine Feder 11 auf, mittels derer die Bearbeitungselemente 3 miteinander verbindbar sind. Ein Verdrehen der Bearbeitungselemente 3 wird durch die Nut-Feder-Verbindung in einfacher und vorteilhafter Weise verhindert.The processing elements 3 have at one end a groove 10 and at the other end a spring 11, by means of which the processing elements 3 are connectable to each other. A rotation of the processing elements 3 is prevented by the tongue and groove connection in a simple and advantageous manner.

Wie sich des weiteren aus den Figuren 2, 3 und 4 ergibt, weisen die Bearbeitungselemente 3 in Umlaufrichtung betrachtet seitliche Auskragungen 12 auf. Die Auskragungen 12 ermöglichen dabei, dass sich die Bearbeitungselemente 3 auf einer größeren Fläche des Keilriemens 8 abstützen. In einer Ausgestaltung des Keilriemens 8 als dreifacher Keilriemen wird dadurch erreicht, dass sich die Bearbeitungselemente 3 auf allen drei Riemen abstützen. Im Ausführungsbeispiel ist vorgesehen, dass die Bearbeitungselemente 3 an jeder Seite zwei Auskragungen 12 aufweisen. Die Auskragungen 12 sind vorzugsweise einstückig mit dem Bearbeitungselement 3 ausgebildet. Die Bearbeitungselemente 3 sind im Ausführungsbeispiel mittels einer Befestigungsschraube 13 mit dem Keilriemen 8 verschraubt. Hierfür sind in dem Keilriemen 8 Bohrungen 14 eingebracht bzw. einbringbar. Die Bearbeitungselemente 3 weisen an ihrer dem Keilriemen 8 zugewandten Unterseite eine nicht näher dargestellte Öffnung auf, die zum Verschrauben mit den Befestigungsschrauben 13 dient.As further from the FIGS. 2, 3 and 4 results, the processing elements 3 viewed in the circumferential direction lateral projections 12. The projections 12 make it possible for the processing elements 3 to be supported on a larger surface of the V-belt 8. In one embodiment of the V-belt 8 as a triple V-belt is achieved by supporting the processing elements 3 on all three belts. In the exemplary embodiment, it is provided that the processing elements 3 have two projections 12 on each side. The projections 12 are preferably formed integrally with the processing element 3. The processing elements 3 are screwed in the exemplary embodiment by means of a fastening screw 13 with the V-belt 8. For this purpose, 8 holes 14 are introduced or can be introduced in the V-belt. The processing elements 3 have at their the V-belt 8 facing the underside an opening, not shown, which serves for screwing with the fastening screws 13.

Wie sich aus den Figuren 2, 3 und 4 ergibt, ist im Ausführungsbeispiel vorgesehen, dass ein Bearbeitungselement 3 eine verlängerte Feder 11a aufweist. Die Feder 11a bzw. die Nase dieses Bearbeitungselemente 3 dient zum Ausgleich eventueller Riementoleranzen und kann entsprechend gekürzt bzw. abgenommen werden. In Versuchen hat sich herausgestellt, dass eine Verlängerung der Feder 11a um 1 bis 3 mm ausreichend ist, um als Toleranzausgleich zu dienen. In Versuchen hat sich des weiteren herausgestellt, dass ein Bearbeitungselement 3 mit einer verlängerten Feder 11a pro Keilriemen 8 ausreichend ist.As is clear from the FIGS. 2, 3 and 4 results, it is provided in the embodiment that a processing element 3 has an elongated spring 11a. The spring 11a or the nose of this processing elements 3 serves to compensate for possible belt tolerances and can be correspondingly reduced or removed. In experiments it has been found that an extension of the spring 11a by 1 to 3 mm is sufficient to serve as tolerance compensation. In experiments it has further been found that a processing element 3 with an extended spring 11a per V-belt 8 is sufficient.

Eine Umlaufgeschwindigkeit der Bearbeitungselemente 3 mit den Borsten 9 von vorzugsweise 14 bis 16 m/s, ist besonders vorteilhaft. Diese Geschwindigkeit gewährleistet zum einen eine schnelle Bearbeitung der Werkstücke 1 und hat sich zum anderen hinsichtlich der Zuverlässigkeit der Bearbeitung und der Belastung der beteiligten Bauteile als geeignet herausgestellt.A rotational speed of the processing elements 3 with the bristles 9 of preferably 14 to 16 m / s, is particularly advantageous. This speed ensures, on the one hand, a rapid processing of the workpieces 1 and, on the other hand, has proved to be suitable with regard to the reliability of the machining and the loading of the components involved.

Da die Borsten 9 beim Betrieb der Vorrichtung einer entsprechenden Abnutzung unterliegen und folglich ausgetauscht werden müssen, kann vorgesehen sein, entweder die Bearbeitungselemente 3 von dem Keilriemen 8 abzulösen und neue Bearbeitungselemente 3 aufzuschrauben oder einen komplett neuen Keilriemen 8 mit Bearbeitungselementen 3 aufzuziehen.Since the bristles 9 are subject to a corresponding wear during operation of the device and must therefore be replaced, it may be provided to either detach the processing elements 3 from the belt 8 and unscrew new processing elements 3 or raise a completely new V-belt 8 with processing elements 3.

Alternativ zu dem Keilriemen 8 kann auch ein Zahnriemen, ein Flachriemen (z.B. mit Noppen), eine Kette, ein Band oder dergleichen vorgesehen sein. Der in den Figuren 2 bis 5 dargestellte Keilriemen 8 kann aus Gummi, Kunststoff, Kunstkautschuk oder vorzugsweise aus Neopren gebildet sein.As an alternative to the V-belt 8, a toothed belt, a flat belt (eg with knobs), a chain, a belt or the like may be provided. The in the FIGS. 2 to 5 shown V-belt 8 may be formed of rubber, plastic, synthetic rubber or preferably made of neoprene.

Vorzugsweise wird als Keilriemen 8 ein handelsüblicher Keilriemen bzw. ein Kraftband verwendet.As a V-belt 8, a commercially available V-belt or force band is preferably used.

Fig. 5 zeigt eine zu den Figuren 2 bis 4 alternative Ausgestaltung des Keilriemens 8 und der Bearbeitungselemente 3. Die in Fig. 1 prinzipmäßig dargestellte erfindungsgemäße Vorrichtung kann ohne weiteres sowohl mit der Ausführungsform gemäß Fig. 2 wie auch mit der Ausführungsform gemäß Fig. 5 betrieben werden. Fig. 5 shows one to the FIGS. 2 to 4 alternative embodiment of the V-belt 8 and the processing elements 3. The in Fig. 1 In principle, the device according to the invention can readily with both the embodiment according to Fig. 2 as well as with the embodiment according to Fig. 5 operate.

Wie aus Fig. 5 ersichtlich ist, sind die Bearbeitungselemente 3 in dieser Ausführungsform als Schleifpapiere ausgebildet, wobei zwischen den Schleifpapierren 3 Stützelemente 15 angeordnet sind. Die zwischen den Schleifpapieren 3 angeordneten Stützelemente 15 sind im Ausführungsbeispiel als Stützvliese 15 bzw. als Schleifvliese ausgebildet.How out Fig. 5 it can be seen, the processing elements 3 are formed in this embodiment as abrasive papers, with 3 support elements 15 are arranged between the sandpaper reindeer. The support elements 15 arranged between the abrasive papers 3 are designed in the exemplary embodiment as support webs 15 or as nonwoven webs.

Gemäß Fig. 5 sind mehrere Schleifpapiere 3 als Bearbeitungseinheit 4 zusammengefasst. Eine derartige Bearbeitungseinheit 4 ist im Detail in den Figuren 6 bis 9 dargestellt. Die Bearbeitungseinheit 4 ist derart aufgebaut, dass zwischen zwei Schleifpapieren 3 jeweils ein Stützvlies 15 und in Umlaufrichtung hinter dem letzten Schleifpapier 3 ein Stützfilz 16 angeordnet ist. Die Schleifpapiere 3, die Stützvliese 15 und der Stützfilz 16 sind mit einem Trägerelement 17 der Bearbeitungseinheit 4 durch Eingießen verbunden. Das Trägerelement 17 ist hierzu vorzugsweise aus Gießharz hergestellt. Eine Ausbildung aus Kunststoff ist jedoch ebenfalls möglich. Alternativ zum Eingießen können die Schleifpapiere 3, der Stützvlies 15 und der Stützfilz 16 auch verklebt oder verklammert werden.According to Fig. 5 are several abrasive papers 3 summarized as processing unit 4. Such Processing unit 4 is in detail in the FIGS. 6 to 9 shown. The processing unit 4 is constructed in such a way that between each two abrasive papers 3 a supporting fleece 15 and in the circumferential direction behind the last sandpaper 3 a supporting felt 16 is arranged. The abrasive papers 3, the backup nonwovens 15 and the support felt 16 are connected to a support member 17 of the processing unit 4 by pouring. The carrier element 17 is for this purpose preferably made of cast resin. However, a plastic training is also possible. As an alternative to pouring, the abrasive papers 3, the backing fleece 15 and the support felt 16 can also be glued or stapled.

Die Bearbeitungseinheit 4 kann mit dem Keilriemen 8 verschraubt, verklebt, vergossen, verstanzt oder verschweißt sein. Im Ausführungsbeispiel ist vorgesehen, dass die Bearbeitungseinheit 4 mit dem Keilriemen 8 verschraubt ist. Hierzu ist in dem Keilriemen 8 eine Bohrung 14 einbringbar bzw. eingebracht, durch welche eine Befestigungsschraube 13 steckbar ist. Das Trägerelement 17 der Bearbeitungseinheit 4 weist analog an seiner Unterseite eine Gewindebuchse 18 bzw. ein Innengewinde auf. Um eine verdrehfeste Verbindung zwischen dem Keilriemen 8 und der Bearbeitungseinheit 4 zu erzeugen, ist ferner vorgesehen, dass auf den Keilriemen 8 eine Führungsleiste 19 aufgeklebt ist. Die Führungsleiste kann auch verschweißt oder aufvulkanisiert sein. Das Trägerelement 17 der Bearbeitungseinheit 4 weist dabei an seiner dem Keilriemen 8 zugewandten Unterseite eine Nut 20 zur Aufnahme der Führungsleiste 19 auf.The processing unit 4 can be bolted to the V-belt 8, glued, potted, punched or welded. In the exemplary embodiment, it is provided that the processing unit 4 is screwed to the V-belt 8. For this purpose, a bore 14 can be introduced or introduced in the V-belt 8, through which a fastening screw 13 can be inserted. The carrier element 17 of the processing unit 4 has analogously on its underside a threaded bush 18 or an internal thread. In order to produce a rotationally fixed connection between the V-belt 8 and the processing unit 4, it is further provided that on the V-belt 8, a guide rail 19 is adhered. The guide bar can also be welded or vulcanised. The carrier element 17 of the processing unit 4 in this case has on its side facing the belt 8 a groove 20 for receiving the guide rail 19.

Der in Fig. 5 dargestellte Keilriemen 8 kann ansonsten analog zu dem Keilriemen 8 der Fig. 2 ausgebildet sein.The in Fig. 5 shown V-belt 8 can otherwise analogous to the belt 8 of the Fig. 2 be educated.

Wie sich aus den Figuren 5 bis 9 ergibt, weisen die Schleifpapiere 3, die Stützvliese 15 und der Stützfilz 16 in etwa die gleiche Höhe und die gleiche Breite auf. Dabei kann vorgesehen sein, dass das Schleifpapier 3 vorzugsweise eine Breite von 25 bis 75 mm und eine Höhe von 30 bis 90 mm aufweist. Im Ausführungsbeispiel ist vorzugsweise vorgesehen, dass die Schleifpapiere 3 eine Breite von 50 mm und eine Höhe von 60 mm aufweisen. Die Bearbeitungseinheiten 4 sind aus einer Mehrzahl von Schleifpapieren 3 gebildet, wobei jede Bearbeitungseinheit beispielsweise fünf bis zwanzig Schleifpapiere 3 aufweisen kann. Im Ausführungsbeispiel ist vorgesehen, dass jede Bearbeitungseinheit 4 zwölf Schleifpapiere aufweist.As is clear from the FIGS. 5 to 9 shows, the abrasive papers 3, the backing webs 15 and the backing felt 16 in about the same height and the same width. It can be provided that the sandpaper 3 preferably has a width of 25 to 75 mm and a height of 30 to 90 mm. In the exemplary embodiment, it is preferably provided that the abrasive papers 3 have a width of 50 mm and a height of 60 mm. The processing units 4 are formed from a plurality of abrasive papers 3, wherein each processing unit may have, for example, five to twenty abrasive papers 3. In the exemplary embodiment, it is provided that each processing unit 4 has twelve abrasive papers.

Die Länge einer Bearbeitungseinheit 4 kann z.B. 30 bis 90 mm betragen. Im Ausführungsbeispiel ist eine Länge von 66 mm vorgesehen.The length of a processing unit 4 may be e.g. 30 to 90 mm. In the embodiment, a length of 66 mm is provided.

Der Stützvlies 15 kann beispielsweise eine Stärke von 2 bis 10 mm, vorzugsweise 5 mm, aufweisen. Die Stärke des Stützfilzes 16 kann z.B. 1 bis 8 mm, vorzugsweise 3 mm, betragen.The support web 15 may for example have a thickness of 2 to 10 mm, preferably 5 mm. The thickness of the backing felt 16 may be e.g. 1 to 8 mm, preferably 3 mm.

In nicht näher dargestellter Weise kann vorgesehen sein, dass die Schleifpapiere 3 ausgehend von ihren dem zu bearbeitenden Werkstück 1 zugewandten Ende Längsschlitze aufweisen, die sich wenigstens über einen Teil der Höhe der Schleifpapiere 3 in Richtung auf das Trägerelement 17 erstrecken.In a manner not shown can be provided that the abrasive papers 3 starting from their the workpiece to be machined facing end 1 have longitudinal slots which extend at least over part of the height of the abrasive papers 3 in the direction of the support member 17.

Die Schleifpapiere 3, die Stützvliese 15 und der Stützfilz 16 sind eng aneinanderliegend ausgebildet.The abrasive papers 3, the backing webs 15 and the backing felt 16 are formed close to each other.

Die Umlaufgeschwindigkeit der Bearbeitungseinheiten 4 mit den Schleifpapieren 3 von 7 bis 8 m/s ist besonders vorteilhaft für das Bearbeitungsergebnis.The rotational speed of the processing units 4 with the abrasive papers 3 of 7 to 8 m / s is particularly advantageous for the processing result.

Die Zusammenfassung mehrerer Schleifpapiere 3 zu einer Bearbeitungseinheit 4 hat sich als besonders geeignet herausgestellt.The combination of several abrasive papers 3 to a processing unit 4 has been found to be particularly suitable.

Die Zusammenfassung mehrerer Schleifpapiere 3 zu einer Bearbeitungseinheit 4 ermöglicht es unter anderem, dass die Bearbeitungselemente 3 schnell gewechselt und einfach befestigt werden können. Aufgrund des auftretenden Verschleißes ist dies von besonderer Bedeutung. Bei einem Verschleiß der Bearbeitungselemente 3 kann der Keilriemen 8 entweder mit neuen Bearbeitungselementen 3 versehen werden oder die gesamte Vorrichtung kann mit einem neuen Keilriemen 8 bestückt werden, auf den die Bearbeitungselemente 3 bzw. die Bearbeitungseinheiten 4 bereits aufgebracht sind.The combination of several abrasive papers 3 to a processing unit 4 makes it possible inter alia that the processing elements 3 can be changed quickly and easily attached. Due to the occurring wear this is of particular importance. In case of wear of the processing elements 3, the V-belt 8 can either be provided with new processing elements 3 or the entire device can be equipped with a new V-belt 8, to which the processing elements 3 and the processing units 4 are already applied.

Claims (17)

  1. A device for machining a strip- or plate-shaped metal workpiece (1), having at least one revolving conveyor device (2) provided with machining elements (3), wherein the conveyor device (2) directs the machining elements (3) at least approximately linearly in the region of the workpiece (1) to be machined, such that they are at an angle or transverse to the feed direction of the workpiece (1),
    characterised in that
    the machining elements (3) are constructed as abrasive papers, and supporting elements (15, 16) are arranged between the abrasive papers (3), wherein a plurality of abrasive papers (3) are combined to form a machining unit (4), and wherein the supporting elements (15) arranged between two abrasive papers (3) of a machining unit (4) are constructed as supporting fleeces (15) and the abrasive papers (3) and the supporting fleeces (15) of a machining unit (4) are constructed such that they abut tightly against one another, wherein the conveyor device (2) is provided with a V-belt (8) and a guide strip (19) is mounted on the V-belt (8) and a carrier element (17) of the machining unit (4) has, on its underside facing the V-belt (8), a groove (20) for receiving the guide strip (19).
  2. A device according to Claim 1,
    characterised in that
    the supporting fleeces (15) are constructed as abrasive fleeces.
  3. A device according to Claim 1 or 2,
    characterised in that
    the supporting element (16) which is arranged behind the last abrasive paper (3) of a machining unit, as seen in the direction of revolution of the conveyor device (2), is constructed as a supporting felt.
  4. A device according to one of Claims 1 to 3,
    characterised in that
    the abrasive papers (3), the supporting fleeces (15) and the supporting felt (16) are connected to a carrier element (17) of the machining unit (4).
  5. A device according to Claim 4,
    characterised in that
    the abrasive papers (3), the supporting fleeces (15) and the supporting felt (16) are cast into the carrier element (17).
  6. A device according to one of Claims 1 to 5,
    characterised in that
    the abrasive papers (3), the supporting fleeces (15) and the supporting felt (16) have approximately the same height and the same width.
  7. A device according to Claim 6,
    characterised in that
    the abrasive paper (3) has a width of preferably 50 mm and a height of 30 to 90 mm, preferably 60 mm.
  8. A device according to one of Claims 1 to 7,
    characterised in that
    the machining unit (4) has 5 to 20, preferably 12, abrasive papers (3).
  9. A device according to one of Claims 1 to 8,
    characterised in that
    the length of a machining unit (4) is 30 to 90 mm, preferably 66 mm.
  10. A device according to one of Claims 1 to 9,
    characterised in that
    the abrasive papers (3), starting from their end facing the workpiece (1) to be machined, have longitudinal slots which extend at least over part of the height of the abrasive papers (3) in the direction of the carrier element (17).
  11. A device according to one of Claims 1 to 10,
    characterised in that
    the machining elements (3) are joined to the V-belt (8) by screwing, adhesion, casting, punching or welding.
  12. A device according to one of Claims 4 to 11,
    characterised in that
    the carrier element (17) is provided with a threaded bush (18) on its underside.
  13. A machining unit (4) for a device for machining a strip- or plate-shaped metal workpiece, which has at least one revolving conveyor device (2), which may be equipped with the machining units (4), wherein the conveyor device (2) directs the machining units (4) at least approximately linearly in the region of the workpiece (1) to be machined,
    characterised in that
    the machining unit (4) has a plurality of abrasive papers (3), wherein a supporting fleece (15) is constructed in each case between two abrasive papers (3) and the abrasive papers (3) and the supporting fleeces (15) of a machining unit (4) are constructed such that they abut tightly against one another, wherein the conveyor device (2) is provided with a V-belt (8) and a guide strip (19) is mounted on the V-belt (8) and a carrier element (17) of the machining unit (4) has, on its underside facing the V-belt (8), a groove (20) for receiving the guide strip (19).
  14. A machining unit according to Claim 13,
    characterised in that
    the supporting element (16) which is arranged behind the last abrasive paper (3) of a machining unit, as seen in the direction of revolution of the conveyor device (2), is constructed as a supporting felt (16).
  15. A V-belt having a plurality of machining units according to one of Claims 13 and 14.
  16. A V-belt according to Claim 15,
    characterised in that
    the machining units (4) are screwed to the V-belt (8).
  17. A V-belt according to Claim 15 or 16,
    characterised in that
    the V-belt (8) is provided with a guide strip (19) and the machining units (4) have, on their underside, a groove (20) for receiving the guide strip (19).
EP06776364.9A 2005-07-25 2006-07-24 Device for machining a strip or plate-shaped metal workpiece Active EP1910024B2 (en)

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DE202005011640U DE202005011640U1 (en) 2005-07-25 2005-07-25 Emery cloth assembly for removal of oxide surface layer from laser cut work pieces
PCT/EP2006/007252 WO2007012438A1 (en) 2005-07-25 2006-07-24 Device for machining a strip or plate-shaped metal workpiece

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JP (1) JP2009502522A (en)
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JP2009502522A (en) 2009-01-29
DE502006007441D1 (en) 2010-08-26
DE502006005061D1 (en) 2009-11-19
US20090104859A1 (en) 2009-04-23
CN101247922A (en) 2008-08-20
DE202005011640U1 (en) 2005-10-13
EP1910024B1 (en) 2010-07-14
EP2025465B1 (en) 2009-10-07
US7789735B2 (en) 2010-09-07
WO2007012438A1 (en) 2007-02-01
EP1910024A1 (en) 2008-04-16
EP2025465A2 (en) 2009-02-18
WO2007012438A8 (en) 2008-02-28
ATE444833T1 (en) 2009-10-15
ATE473838T1 (en) 2010-07-15
EP2025465A3 (en) 2009-02-25

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