EP1741516B1 - Tool holder - Google Patents
Tool holder Download PDFInfo
- Publication number
- EP1741516B1 EP1741516B1 EP06016758.2A EP06016758A EP1741516B1 EP 1741516 B1 EP1741516 B1 EP 1741516B1 EP 06016758 A EP06016758 A EP 06016758A EP 1741516 B1 EP1741516 B1 EP 1741516B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- natural fibres
- tool carrier
- natural
- grinding
- 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.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/003—Wheels having flaps of flexible abrasive material supported by a flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/04—Wheels 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/04—Rigid drums for carrying flexible material
Definitions
- the invention relates to reinforced with natural fibers, molded by injection molding grinding or polishing tools with embedded abrasive grain and a blank made from a fiber mat according to the preambles of the independent claims.
- the invention further relates to a manufacturing method for reinforced with natural fibers, rigid and rigid, rotationally symmetrical, made by injection molding of granules tool carrier according to the preamble of the independent method claim.
- Grinding wheels consist of a fiber-reinforced plate and an abrasive coating, wherein the grinding wheels can also be produced by an injection molding process.
- Possible reinforcing agents for the sanding pad are organic, non-organic and also metallic or ceramic fibers or strips of material or fabric which are solidified with a binder.
- natural fibers such as wool, cotton, silk or cellulose are disclosed.
- Preferred binders are thermoplastic binders such as special synthetic resins.
- grinding wheels which are made of phenolic resin and reinforced with a fabric of glass fibers, synthetic fibers, cotton, hemp or the like.
- a reinforced with natural fibers molded by injection molding of granules, rotationally symmetric, rigid and rigid tool carrier, the fiber reinforcement is solidified by a binder, is detachably connectable to a rotary drive and also has a tool support surface for receiving at least one grinding and / or polishing.
- the detachable with a rotary drive is connectable and has a tool support surface, at least one grinding and / or polishing element is received on the tool support surface.
- the rotationally symmetrical tool carrier can, for. B. be a circular disc or a cylindrical roller.
- a material processing tool may be, for example, fan grinders, fan sanding brushes or rollers, roughing wheels, cutting wheels, polishing wheels, etc.
- Such materials processing tools find their applications everywhere where surfaces of any material to be edited, smoothed, polished and / or modeled. More general formulated there, where must be removed from a workpiece material. These tools are wearing parts that are manufactured and consumed in large quantities.
- the grinding and / or polishing elements may be, for example, felt polishing body, abrasive or polishing fleece, abrasive cloth and the like.
- the reinforced with natural fibers molded from granules by injection molding grinding or polishing tool with embedded abrasive grain, is made of granules which contains natural fibers and binder as an ingredient, the proportion of natural fibers between 50 % and 85% and where the natural fibers are hemp or flax.
- a rotationally symmetrical blank for further processing to a rigid and rigid tool carrier for example, made of a fiber mat, which consists at least partially of natural fibers and is mixed with a binder for natural fibers.
- a granule which has as a component natural fibers and binder, wherein the proportion of natural fibers between 50% and 85%, and wherein the natural fibers are hemp or flax.
- a core idea of the invention can be seen in the fact that the abrasive or polishing fabric, the fabric carrier and / or the grinding or polishing tool of the material processing tool instead of plastic as before, made of natural materials, and thus essentially part of renewable resources.
- the tool carriers made of materials with natural fibers have very good thermal and mechanical properties.
- One Another positive aspect of the invention is that the natural fiber materials are available today relatively inexpensive and processable.
- the binder may be used in commercial forms, e.g. be used as a suspension or solid as a powder or granules, with one- or multi-component binders are suitable.
- Organic or inorganic binders can be used. Examples are phenolic resins, styrene resins, polycarbonates or polyolefins, in particular polypropylene.
- a fiber fabric, such as a hemp and / or flax knit, which is interspersed with a solid binder, can be pressed under increased pressure and at elevated temperature to the final shape. In the process, the binder melts, distributes itself in the fiber fabric, and a product of high stability and tensile strength results.
- the proportion of natural fiber may be between 50% and 85%, preferably in the range of 70% to 80%.
- the aforementioned objects are made entirely of natural materials.
- the disposal is particularly unproblematic.
- cellulosic materials can be used as binders.
- the natural fibers consist of one or more of the materials hemp or flax.
- the rigid and rigid, rotationally symmetrical tool carrier is made of a granule comprising the constituents of natural fibers and polypropylene.
- the production with granules is particularly simple and inexpensive.
- the granules are, as known from the plastic injection molding technology, melted and in appropriate forms injected, wherein in a particularly suitable mixture, the granules each consist of 50% natural fibers and polypropylene.
- a preferred development of the material processing tool is that the grinding and / or polishing element is also at least partially made of natural fibers. This is in turn with regard to the environmentally sound disposal of the used material processing tool advantage.
- a flap wheel 1 which consists of a tool carrier 7 and fan-like applied grinding elements 5 (grinding blades).
- the tool carrier 7 also has a circular shape, wherein in the view shown here, the outer edge of the tool carrier 7 is visible only in a small angle segment. In the circle center of the tool carrier 7, an opening 3 is incorporated, which serves to connect the flapper disc 1 with a rotary drive.
- the tool carrier 7 is made of a hemp / polypropylene granules.
- the natural fibers 31 are in FIG. 1 shown schematically.
- the tool carrier 7 has a tool support surface 9, on which a plurality of grinding elements 5 is arranged like a fan. In a small angular segment, however, the grinding elements 5 are omitted for purposes of illustration.
- FIG. 2 shows a so-called Moprad 11, which has a cylindrical tool carrier 15 with radially arranged grinding elements 17 (grinding blades).
- an axis 19 is used in the middle in the illustrated example, via which the mop 11 can be connected to a drive.
- the tool support surface 21 is in this embodiment, the lateral surface of the cylinder, wherein the grinding elements 17 are mounted on the lateral surface and project radially from the tool carrier 15.
- the tool carrier 15 is also made of a natural fiber / binder granules.
- the grinding elements 17 are omitted for illustrative purposes to illustrate the tool support surface 21.
- a partial area is shown broken up and the natural fibers 31 are schematically indicated.
- FIG. 3 shows a roller-like trained tool carrier 23, on the tool support surface 25 in the working mode an endless grinding or polishing belt unrolls.
- the tool carrier 23 has an axial opening 29 which serves to connect to a rotary drive (not shown).
- the grinding element, ie the endless abrasive belt 27 of the tool support surface 25 is not as in the FIG. 1 and FIG. 2 shown embodiments received by a stoff gleich- but by a frictional connection.
- the grinding blades 5, 17 of the examples according to Fig. 1 and 2 consist of a fabric of natural fibers such as hemp or flax, which is occupied on the working side with abrasive grain.
- the abrasive cloth is provided in a conventional manner with an impregnation, such as phenolic resins, and sprayed eg with urea, so that a good adhesion of the abrasive grain is given.
- abrasive belt 27 according to the example of FIG. 3 made of a fabric of natural fibers with an abrasive grain cast.
- the grinding tool comprises a disk-shaped tool carrier 10, a separate fabric carrier 26 which can be fastened detachably on the tool carrier 10 and radially oriented grinding blades 16 mounted thereon.
- Basic material for tool carrier 10, fabric carrier 26 and abrasive blades 16 are each natural fibers that are processed and adapted differently depending on the purpose.
- micro hooks 12 which are also referred to as Velcro hooks. They interact with a support 30 of loose threads as so-called Velcro, so that the fabric support 26 can be easily attached to the tool carrier or removed from it.
- the natural fibers are provided with an impregnation, which improves the adhesive bond with the grinding blades 16.
- the tissue carrier 26 occupied by abrasive lamellae 16 is thus an article which can be replaced after wear of the abrasive lamellae 16 by a new tissue carrier occupied by unconsumable abrasive lamellae 16, while the tool carrier 10 can be retained to conserve resources.
- Fig. 1 illustrates a phase of the manufacturing process of disc-shaped tools 60.
- a plate-shaped body 61 is produced from a pulp of natural fibers and binder and homogeneously distributed abrasive grain. It is then pressed under elevated pressure and elevated temperature, wherein the blanks 62 of the tools are molded and pressed side by side. The blanks 62 thereby receive the final shape and strength of the final product. In a final punching process, the blanks 62 are punched out. Due to the incorporated abrasive grain, these tools can be used, for example, as cutting discs.
- tools produced in this way can be filled with abrasive grain on their front side after punching, so that they can be used for grinding, roughing or polishing surfaces.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Die Erfindung betrifft mit Naturfasern verstärkte, mittels Spritzgusstechnik geformte Schleif- oder Polierwerkzeuge mit eingebundenem Schleifkorn und einen aus einer Fasermatte hergestellten Rohling nach den Oberbegriffen der unabhängigen Sachansprüche. Die Erfindung betrifft ferner ein Herstellungsverfahren für mit Naturfasern verstärkte, starre und biegesteife, rotationssymmetrische, mittels Spritzgusstechnik aus Granulat gefertigte Werkzeugträger nach dem Oberbegriff des unabhängigen Verfahrensanspruchs.The invention relates to reinforced with natural fibers, molded by injection molding grinding or polishing tools with embedded abrasive grain and a blank made from a fiber mat according to the preambles of the independent claims. The invention further relates to a manufacturing method for reinforced with natural fibers, rigid and rigid, rotationally symmetrical, made by injection molding of granules tool carrier according to the preamble of the independent method claim.
Im Stand der Technik sind gemäß Dokument
Ein mit Naturfasern verstärkter, mittels Spritzgusstechnik aus Granulat geformter, rotationssymmetrischer, starrer und biegesteifer Werkzeugträger, dessen Faserverstärkung durch ein Bindemittel verfestigt ist, ist lösbar mit einem Drehantrieb verbindbar und weist außerdem eine Werkzeugauflagefläche zur Aufnahme von mindestens einem Schleif- und/ oder Polierelement auf.A reinforced with natural fibers, molded by injection molding of granules, rotationally symmetric, rigid and rigid tool carrier, the fiber reinforcement is solidified by a binder, is detachably connectable to a rotary drive and also has a tool support surface for receiving at least one grinding and / or polishing.
Bei einem Materialbearbeitungswerkzeug mit einem naturfaserverstärkten, rotationssymmetrischen, starren und biegesteifen Werkzeugträger, der lösbar mit einem Drehantrieb verbindbar ist und eine Werkzeugauflagefläche aufweist, ist mindestens ein Schleif- und/ oder Polierelement auf der Werkzeugauflagefläche aufgenommen.In a material processing tool with a natural fiber reinforced, rotationally symmetrical, rigid and rigid tool carrier, the detachable with a rotary drive is connectable and has a tool support surface, at least one grinding and / or polishing element is received on the tool support surface.
Der rotationssymmetrische Werkzeugträger kann z. B. eine kreisförmige Scheibe oder eine zylinderförmige Walze sein.The rotationally symmetrical tool carrier can, for. B. be a circular disc or a cylindrical roller.
Bei einem Materialbearbeitungswerkzeug kann es sich beispielsweise um Fächerschleifer, Fächerschleifbürsten oder -walzen, Schruppschleifscheiben, Trennscheiben, Polierscheiben usw. handeln.A material processing tool may be, for example, fan grinders, fan sanding brushes or rollers, roughing wheels, cutting wheels, polishing wheels, etc.
Derartige Materialbearbeitungswerkzeuge finden Ihre Einsatzgebiete überall dort, wo Oberflächen von beliebigen Materialien bearbeitet, geglättet, poliert und/ oder modelliert werden sollen. Allgemeiner formuliert also dort, wo von einem Werkstück Material abgenommen werden muss. Es handelt sich bei diesen Werkzeugen um Verschleißteile, die in hohen Stückzahlen gefertigt und verbraucht werden.Such materials processing tools find their applications everywhere where surfaces of any material to be edited, smoothed, polished and / or modeled. More general formulated there, where must be removed from a workpiece material. These tools are wearing parts that are manufactured and consumed in large quantities.
Hinreichend bekannt sind Materialbearbeitungswerkzeuge, die aus einem rotationssymmetrischen Werkzeugträger bestehen, auf dem Schleif- und/ oder Polierelemente aufgebracht sind. Bei den Schleif- und/ oder Polierelementen kann es sich beispielsweise um Filzpolierkörper, Schleif- oder Poliervlies, Schleifgewebe und ähnliches handeln.Well-known are material processing tools that consist of a rotationally symmetrical tool carrier, are applied to the grinding and / or polishing. The grinding and / or polishing elements may be, for example, felt polishing body, abrasive or polishing fleece, abrasive cloth and the like.
Bei den bekannten Materialbearbeitungswerkzeugen ist der Werkzeugträger häufig in kompakter Weise starr und biegesteif aus Kunststoff gefertigt, wobei auch Faserverstärkungen, beispielsweise Glasfaserverstärkungen, zum Einsatz kommen. Auch für aufgeschäumte, poröse Schleifwerkzeuge werden in der
Beim Einsatz solcher Materialbearbeitungswerkzeuge kann es aufgrund der anfallenden Reibungswärme zu beträchtlichen Temperaturanstiegen kommen. Dadurch erhöht sich auch die Temperatur des Werkzeugträgers, wodurch dessen Festigkeit und damit dessen mechanische Belastbarkeit vermindert wird.When using such material processing tools, it can come to considerable increases in temperature due to the resulting frictional heat. This also increases the temperature of the tool carrier, whereby its strength and thus its mechanical strength is reduced.
Vor diesem Hintergrund ist es Aufgabe der vorliegenden Erfindung, die eingangs genannten Gegenstände sowie ein Herstellungsverfahren dafür anzugeben, welche bei einfacher Herstellung günstige mechanische und thermische Eigenschaften aufweisen und darüber hinaus in unproblematischer Weise entsorgbar sind.Against this background, it is an object of the present invention to provide the aforementioned objects and a manufacturing method thereof, which have favorable mechanical and thermal properties with simple production and are also disposable in an unproblematic way.
Diese Aufgabe wird vorrichtungsmäßig und verfahrensmäßig mit den Merkmalen der unabhängigen Ansprüche gelöst. Bevorzugte Weiterbildungen sind in den abhängigen Ansprüchen beschrieben.This object is achieved in terms of apparatus and procedural with the features of the independent claims. Preferred developments are described in the dependent claims.
Bei einem erfindungsgemäßen Materialbearbeitungswerkzeug der oben beschriebenen Art ist vorgesehen, dass das mit Naturfasern verstärkte, aus Granulat mittels Spritzgusstechnik geformte Schleif- oder Polierwerkzeug mit eingebundenem Schleifkorn, aus Granulat hergestellt ist, welches als Bestandteil Naturfasern und Bindemittel aufweist, wobei der Anteil der Naturfasern zwischen 50% und 85% liegt und wobei die Naturfasern aus Hanf oder Flachs bestehen.In a material processing tool according to the invention of the type described above, it is provided that the reinforced with natural fibers, molded from granules by injection molding grinding or polishing tool with embedded abrasive grain, is made of granules which contains natural fibers and binder as an ingredient, the proportion of natural fibers between 50 % and 85% and where the natural fibers are hemp or flax.
Weiterhin ist ein rotationssymmetrischer Rohling zur Weiterverarbeitung zu einem starren und biegesteifen Werkzeugträger beispielsweise aus einer Fasermatte gefertigt, welche zumindest teilweise aus Naturfasern besteht und mit einem Bindemittel für Naturfasern versetzt ist.Furthermore, a rotationally symmetrical blank for further processing to a rigid and rigid tool carrier, for example, made of a fiber mat, which consists at least partially of natural fibers and is mixed with a binder for natural fibers.
Bei einem Herstellungsverfahren für einen mit Naturfasern verstärkten, starren und biegesteifen, rotationssymmetrischen Werkzeugträger, der aus Granulat mittels Spritzgusstechnik geformt wird und dessen Faserverstärkung durch ein Bindemittel verfestigt wird, wird ein Granulat verwendet, welches als Bestandteil Naturfasern und Bindemittel aufweist, wobei der Anteil der Naturfasern zwischen 50% und 85% liegt, und wobei die Naturfasern aus Hanf oder Flachs bestehen. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beansprucht.In a manufacturing process for a reinforced with natural fibers, rigid and rigid, rotationally symmetrical tool carrier, which is molded from granules by injection molding and the fiber reinforcement is solidified by a binder, a granule is used which has as a component natural fibers and binder, wherein the proportion of natural fibers between 50% and 85%, and wherein the natural fibers are hemp or flax. Advantageous developments of the invention are claimed in the subclaims.
Ein Kerngedanke der Erfindung kann darin gesehen werden, dass das Schleif- oder Poliergewebe, der Gewebeträger und/oder das Schleif- oder Polierwerkzeug des Materialbearbeitungswerkzeugs statt wie bisher aus Kunststoff, aus Naturstoffen, und damit im wesentlichen Teil aus nachwachsenden Rohstoffen hergestellt ist.A core idea of the invention can be seen in the fact that the abrasive or polishing fabric, the fabric carrier and / or the grinding or polishing tool of the material processing tool instead of plastic as before, made of natural materials, and thus essentially part of renewable resources.
Man erreicht dadurch zunächst eine deutlich unproblematischere Entsorgung. Beispielsweise ist die Kohlendioxid-Bilanz bei Verbrennung durch die Benutzung nachwachsender Rohstoffe praktisch ausgeglichen. Darüber hinaus sind andere Entsorgungsmöglichkeiten wie beispielsweise Kompostierung möglich.This initially achieves a much less problematic disposal. For example, the carbon dioxide balance in combustion through the use of renewable resources is practical balanced. In addition, other disposal options such as composting are possible.
Es hat sich bei der Erfindung überraschend gezeigt, dass die aus Werkstoffen mit Naturfasern hergestellten Werkzeugträger sehr gute thermische und mechanische Eigenschaften aufweisen. Ein weiterer positiver Aspekt der Erfindung ist, dass die Naturfasermaterialien heute relativ kostengünstig erhältlich und verarbeitbar sind.It has surprisingly been found in the invention that the tool carriers made of materials with natural fibers have very good thermal and mechanical properties. One Another positive aspect of the invention is that the natural fiber materials are available today relatively inexpensive and processable.
Besonders gute mechanische und thermische Eigenschaften erhalten der Werkzeugträger oder die eingangs beschriebenen Gegenstände, wenn die Faserverstärkung durch Bindemittel verfestigt ist. Das Bindemittel kann in den handelsüblichen Formen, z.B. als Suspension oder fest als Pulver oder Granulat, verwendet werden, wobei ein- oder mehrkomponentige Bindemittel geeignet sind. Es können organische oder anorganische Bindemittel verwendet werden. Beispiele sind Phenolharze, Styrolharze, Polycarbonate oder Polyolefine, wie insbesondere Polypropylen. Ein Fasergewebe, etwa ein Hanf-, und/ oder Flachsgewirke, das mit einem festen Bindemittel durchsetzt ist, kann unter erhöhtem Druck und bei erhöhter Temperatur zur Endform verpresst werden. Dabei schmilzt das Bindemittel auf, verteilt sich im Fasergewebe, und es entsteht ein Produkt von hoher Stabilität und Reißfestigkeit. Der Anteil der Naturfaser kann zwischen 50% und 85% liegen, bevorzugt im Bereich von 70% bis 80%.Particularly good mechanical and thermal properties of the tool carrier or the objects described above, when the fiber reinforcement is solidified by binder. The binder may be used in commercial forms, e.g. be used as a suspension or solid as a powder or granules, with one- or multi-component binders are suitable. Organic or inorganic binders can be used. Examples are phenolic resins, styrene resins, polycarbonates or polyolefins, in particular polypropylene. A fiber fabric, such as a hemp and / or flax knit, which is interspersed with a solid binder, can be pressed under increased pressure and at elevated temperature to the final shape. In the process, the binder melts, distributes itself in the fiber fabric, and a product of high stability and tensile strength results. The proportion of natural fiber may be between 50% and 85%, preferably in the range of 70% to 80%.
Bei einer weiteren bevorzugten Ausführungsvariante sind die eingangs erwähnten Gegenstände vollständig aus Naturstoffen hergestellt. Dadurch gestaltet sich die Entsorgung besonders unproblematisch. Als Bindemittel können hier beispielsweise Cellulosematerialien eingesetzt sein.In a further preferred embodiment, the aforementioned objects are made entirely of natural materials. As a result, the disposal is particularly unproblematic. For example, cellulosic materials can be used as binders.
Bevorzugte Ausführungsformen der eingangs erwähnten Gegenstände sind dadurch gekennzeichnet, dass die Naturfasern aus einem oder mehreren der Materialien Hanf oder Flachs bestehen.Preferred embodiments of the objects mentioned above are characterized in that the natural fibers consist of one or more of the materials hemp or flax.
Diese Materialien werden heute wieder in größeren Mengen landwirtschaftlich produziert, sind daher entsprechend kostengünstig und weisen außerdem günstige Verarbeitungs- und Festigkeitseigenschaften auf.These materials are now produced again in large quantities agriculturally, are therefore correspondingly inexpensive and also have favorable processing and strength properties.
Bei einer besonders bevorzugten Ausführungsform ist der starre und biegesteife, rotationssymmetrische Werkzeugträger aus einem Granulat hergestellt, welches die Bestandteile Naturfasern und Polypropylen aufweist. Die Herstellung mit Granulat gestaltet sich besonders einfach und kostengünstig. Die Granulatkörner werden, wie etwa aus der Kunststoffspritzgusstechnologie bekannt, eingeschmolzen und in entsprechende Formen eingespritzt, wobei in einer besonders geeigneten Mischung das Granulat jeweils zu 50 % aus Naturfasern und Polypropylen besteht.In a particularly preferred embodiment of the rigid and rigid, rotationally symmetrical tool carrier is made of a granule comprising the constituents of natural fibers and polypropylene. The production with granules is particularly simple and inexpensive. The granules are, as known from the plastic injection molding technology, melted and in appropriate forms injected, wherein in a particularly suitable mixture, the granules each consist of 50% natural fibers and polypropylene.
Eine bevorzugte Weiterbildung des Materialbearbeitungswerkzeuges besteht darin, dass das Schleif- und/ oder Polierelement ebenfalls zumindest teilweise aus Naturfasern hergestellt ist. Dies ist wiederum im Hinblick auf die umweltgerechte Entsorgung des verbrauchten Materialbearbeitungswerkzeuges von Vorteil.A preferred development of the material processing tool is that the grinding and / or polishing element is also at least partially made of natural fibers. This is in turn with regard to the environmentally sound disposal of the used material processing tool advantage.
Die Erfindung wird im folgenden anhand von Beispielen weiter erläutert, die in den Zeichnungen schematisch dargestellt sind. Es zeigen:
- Fig. 1
- eine teilweise geschnittene Draufsicht auf eine Fächerschleifscheibe;
- Fig. 2
- eine teilweise geschnittene perspektivische Ansicht eines Schleifrades, welches auch als Moprad bezeichnet wird;
- Fig. 3
- eine teilweise geschnittene perspektivische Ansicht eines walzenförmigen Werkzeugträgers in Verbindung mit einem Endlosschleifband;
- Fig. 4
- eine Längsschnittdarstellung eines Schleifwerkzeugs;
- Fig. 5
- eine Ansicht eines mit Schleiflamellen besetzten Gewebeträgers als Einzelheit des Schleifwerkzeugs nach
Fig. 4 ; und - Fig. 6
- eine perspektivische Ansicht eines plattenförmigen Grundkörpers zur Herstellung von Werkzeugen oder Werkzeugträgern.
- Fig. 1
- a partially sectioned plan view of a flapper disc;
- Fig. 2
- a partially cutaway perspective view of a grinding wheel, which is also referred to as Moprad;
- Fig. 3
- a partially cutaway perspective view of a roller-shaped tool carrier in conjunction with an endless abrasive belt;
- Fig. 4
- a longitudinal sectional view of a grinding tool;
- Fig. 5
- a view of an occupied with abrasive lamella fabric carrier as a detail of the grinding tool after
Fig. 4 ; and - Fig. 6
- a perspective view of a plate-shaped base body for the production of tools or tool carriers.
In
Die Schleiflamellen 5, 17 der Beispiele gemäß
In gleicher Weise besteht auch das Schleifband 27 nach dem Beispiel der
Bei dem Ausführungsbeispiel nach
Die Stirnseite des Werkzeugträgers 10 ist mit Mikrohaken 12 versehen, die auch als Kletthaken bezeichnet werden. Sie wirken mit einer Auflage 30 aus losen Fäden als sog. Klettverschluss zusammen, so dass der Gewebeträger 26 auf dem Werkzeugträger leicht befestigt oder von diesem entfernt werden kann. Auf der der Auflage 30 gegenüberliegenden Seite des Gewebeträgers 26 sind die Naturfasern mit einer Imprägnierung versehen, welche die Klebeverbindung mit den Schleiflamellen 16 verbessert.The front side of the
Bei dem mit Schleiflamellen 16 besetzten Gewebeträger 26 handelt es sich somit um einen Gegenstand, der nach dem Verschleiß der Schleiflamellen 16 durch einen neuen mit unverbrauchten Schleiflamellen 16 besetzten Gewebeträger ersetzt werden kann, während der Werkzeugträger 10 zur Schonung von Ressourcen beibehalten werden kann.The
In
Zusätzlich oder alternativ können derartig hergestellte Werkzeuge auf ihrer Stirnseite nach dem Ausstanzen mit Schleifkorn besetzt werden, so dass sie zum Schleifen, Schruppen oder Polieren von Flächen eingesetzt werden können.Additionally or alternatively, tools produced in this way can be filled with abrasive grain on their front side after punching, so that they can be used for grinding, roughing or polishing surfaces.
Auf die gleiche Weise wie in
Claims (6)
- A natural fibre reinforced grinding or polishing tool, formed from granulate by means of injection die moulding technique and having embedded abrasive grain,
characterized in that
it is manufactured from granulate comprising natural fibres (31) and bonding agent, that the share of natural fibres (31) is between 50% and 85%, and that the natural fibres (31) consist of hemp or flax. - The tool according to claim 1,
characterized in that
the natural fibres (31) are stabilised by means of a bonding agent. - The tool according to any one of claims 1 or 2,
characterized in that
the bonding agent is an artificial resin. - A method for manufacturing a natural fibre (31) reinforced, rigid, flexurally resistant and rotationally symmetrical tool carrier (7; 15; 23), wherein said tool carrier (7; 15; 23) is formed from granulate by means of injection die moulding technique and the fibre reinforcement is stabilised by a bonding agent,
characterized in that
the granulate used comprises natural fibres (31) and bonding agent, wherein the share of natural fibres (31) is between 50% and 85%, and wherein the natural fibres (31) consist of hemp or flax. - The method according to claim 4,
characterized in that
the bonding agent used is an artificial resin. - A blank (62) manufactured from a fibre mat for being further processed into a rigid and flexurally resistant tool carrier (7; 15; 23) which at least partially consists of natural fibres (31) and contains a bonding agent for the natural fibres (31), wherein the share of natural fibres (31) is between 50% and 85% and the natural fibres (31) consist of hemp or flax.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29910931U DE29910931U1 (en) | 1999-06-22 | 1999-06-22 | Tool carrier |
EP00943868A EP1105252B1 (en) | 1999-06-22 | 2000-06-23 | Tool holder |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00943868A Division EP1105252B1 (en) | 1999-06-22 | 2000-06-23 | Tool holder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1741516A1 EP1741516A1 (en) | 2007-01-10 |
EP1741516B1 true EP1741516B1 (en) | 2014-04-02 |
Family
ID=8075173
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06016758.2A Expired - Lifetime EP1741516B1 (en) | 1999-06-22 | 2000-06-23 | Tool holder |
EP00943868A Expired - Lifetime EP1105252B1 (en) | 1999-06-22 | 2000-06-23 | Tool holder |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00943868A Expired - Lifetime EP1105252B1 (en) | 1999-06-22 | 2000-06-23 | Tool holder |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1741516B1 (en) |
AT (1) | ATE353739T1 (en) |
DE (2) | DE29910931U1 (en) |
ES (2) | ES2280228T3 (en) |
WO (1) | WO2000078506A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021127343A1 (en) | 2021-10-21 | 2023-04-27 | Klingspor Ag | Grinding device with carrier wheel and abrasive |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106631A1 (en) | 2001-02-12 | 2002-08-22 | Rueggeberg August Gmbh & Co | Carrying plate for flap disc and flap disc |
CN101376233B (en) * | 2007-08-27 | 2010-09-15 | 四川省三台县固锐实业有限责任公司 | Raised eight-degree plain abrasive cloth wheel |
FI125880B (en) | 2009-04-29 | 2016-03-31 | Picote Oy Ltd | Tool and method for pipeline renovation |
WO2012000647A1 (en) * | 2010-06-29 | 2012-01-05 | Gerd Eisenblätter Gmbh | Tool support with a reinforcement of jute fibers, and an injection molding method for producing such a tool support |
DE102012021267B4 (en) | 2012-09-18 | 2022-02-24 | Ppr Gmbh | flap disc |
EP2708326B8 (en) | 2012-09-18 | 2016-03-09 | PPR GmbH | Flap grinding disc |
US9764449B2 (en) | 2014-05-29 | 2017-09-19 | Saint-Gobain Abrasives, Inc. | Abrasive article having a core including a polymer material |
DE102015011442A1 (en) | 2015-09-01 | 2017-03-02 | Gerd Eisenblätter Gmbh | Flap disc, carrier plate therefor and method for its production |
DE102016002401B4 (en) | 2016-02-29 | 2024-05-16 | Gerd Eisenblätter Gmbh | Grinding wheel with asymmetrical backing plate |
DE102016002400A1 (en) | 2016-02-29 | 2017-08-31 | Gerd Eisenblätter Gmbh | Grinding wheel and carrier plate for it |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4020461C1 (en) * | 1990-06-27 | 1991-07-18 | Gerd Eisenblaetter Gmbh, 8192 Geretsried, De | Face grinding disc tool - has replaceable grinding disc with backing disc having plastics rods |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB951450A (en) * | 1959-05-15 | 1964-03-04 | Osborn Mfg Co | Abrasive articles |
US3498010A (en) * | 1965-06-03 | 1970-03-03 | Nobuyoshi Hagihara | Flexible grinding disc |
US3449871A (en) * | 1966-06-18 | 1969-06-17 | Hisamine Kobayashi | Beeline flow finishing method and apparatus |
US5316812A (en) | 1991-12-20 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Coated abrasive backing |
WO1995022438A1 (en) * | 1994-02-22 | 1995-08-24 | Minnesota Mining And Manufacturing Company | Method for making an endless coated abrasive article and the product thereof |
-
1999
- 1999-06-22 DE DE29910931U patent/DE29910931U1/en not_active Expired - Lifetime
-
2000
- 2000-06-23 ES ES00943868T patent/ES2280228T3/en not_active Expired - Lifetime
- 2000-06-23 EP EP06016758.2A patent/EP1741516B1/en not_active Expired - Lifetime
- 2000-06-23 DE DE50014059T patent/DE50014059D1/en not_active Expired - Lifetime
- 2000-06-23 ES ES06016758.2T patent/ES2476795T3/en not_active Expired - Lifetime
- 2000-06-23 EP EP00943868A patent/EP1105252B1/en not_active Expired - Lifetime
- 2000-06-23 AT AT00943868T patent/ATE353739T1/en active
- 2000-06-23 WO PCT/EP2000/005796 patent/WO2000078506A1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4020461C1 (en) * | 1990-06-27 | 1991-07-18 | Gerd Eisenblaetter Gmbh, 8192 Geretsried, De | Face grinding disc tool - has replaceable grinding disc with backing disc having plastics rods |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021127343A1 (en) | 2021-10-21 | 2023-04-27 | Klingspor Ag | Grinding device with carrier wheel and abrasive |
Also Published As
Publication number | Publication date |
---|---|
ES2476795T3 (en) | 2014-07-15 |
ATE353739T1 (en) | 2007-03-15 |
EP1105252B1 (en) | 2007-02-14 |
DE50014059D1 (en) | 2007-03-29 |
DE29910931U1 (en) | 1999-08-26 |
EP1105252A1 (en) | 2001-06-13 |
ES2280228T3 (en) | 2007-09-16 |
WO2000078506A1 (en) | 2000-12-28 |
EP1741516A1 (en) | 2007-01-10 |
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