EP1741516B1 - Porte-outil - Google Patents

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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
Application number
EP06016758.2A
Other languages
German (de)
English (en)
Other versions
EP1741516A1 (fr
Inventor
Gerd Eisenblätter
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.)
Gerd Eisenblaetter GmbH
Original Assignee
Gerd Eisenblaetter GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gerd Eisenblaetter GmbH filed Critical Gerd Eisenblaetter GmbH
Publication of EP1741516A1 publication Critical patent/EP1741516A1/fr
Application granted granted Critical
Publication of EP1741516B1 publication Critical patent/EP1741516B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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.

Claims (6)

  1. Outil de meulage ou de polissage renforcé de fibres naturelles, formé à partir de granulés par une technique de moulage par injection, et ayant des grains abrasifs incorporés,
    caractérisé en ce qu'il est fabriqué à partir de granulés contenant des fibres naturelles (31) et un liant, en ce que la proportion de fibres naturelles (31) est de 50 % à 85 %, et en ce que les fibres naturelles (31) sont constituées de chanvre ou de lin.
  2. Outil selon la revendication 1,
    caractérisé en ce que les fibres naturelles (31) sont stabilisées par un liant.
  3. Outil selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce que le liant est une résine artificielle.
  4. Procédé de fabrication d'un porte-outil (7; 15; 23) renforcé par des fibres naturelles (31), rigide, autoportant et symétrique en rotation, dans lequel ledit porte-outil (7; 15; 23) est formé à partir de granulés par une technique de moulage par injection, et les fibres de renfort sont stabilisées par un liant,
    caractérisé en ce que les granulés utilisés comprennent des fibres naturelles (31) et du liant, la proportion de fibres naturelles (31) étant de 50 % à 85 %, et les fibres naturelles (31) étant constituées de chanvre ou de lin.
  5. Procédé selon la revendication 4,
    caractérisé en ce que le liant utilisé est une résine artificielle.
  6. Ebauche (62), fabriquée à partir d'une natte en fibres, destinée à être transformée ultérieurement en un porte-outil (7; 15; 23) rigide et autoportant qui est composé, au moins partiellement, de fibres naturelles (31) et contient un liant pour les fibres naturelles (31), la proportion de fibres naturelles (31) étant de 50 % à 85 %, et les fibres naturelles (31) étant constituées de chanvre ou de lin.
EP06016758.2A 1999-06-22 2000-06-23 Porte-outil Expired - Lifetime EP1741516B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29910931U DE29910931U1 (de) 1999-06-22 1999-06-22 Werkzeugträger
EP00943868A EP1105252B1 (fr) 1999-06-22 2000-06-23 Porte-outil

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00943868A Division EP1105252B1 (fr) 1999-06-22 2000-06-23 Porte-outil

Publications (2)

Publication Number Publication Date
EP1741516A1 EP1741516A1 (fr) 2007-01-10
EP1741516B1 true EP1741516B1 (fr) 2014-04-02

Family

ID=8075173

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06016758.2A Expired - Lifetime EP1741516B1 (fr) 1999-06-22 2000-06-23 Porte-outil
EP00943868A Expired - Lifetime EP1105252B1 (fr) 1999-06-22 2000-06-23 Porte-outil

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00943868A Expired - Lifetime EP1105252B1 (fr) 1999-06-22 2000-06-23 Porte-outil

Country Status (5)

Country Link
EP (2) EP1741516B1 (fr)
AT (1) ATE353739T1 (fr)
DE (2) DE29910931U1 (fr)
ES (2) ES2476795T3 (fr)
WO (1) WO2000078506A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021127343A1 (de) 2021-10-21 2023-04-27 Klingspor Ag Schleifvorrichtung mit Trägerrad und Schleifmittel

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106631A1 (de) 2001-02-12 2002-08-22 Rueggeberg August Gmbh & Co Tragteller für Fächerschleifscheibe und Fächerschleifscheibe
CN101376233B (zh) * 2007-08-27 2010-09-15 四川省三台县固锐实业有限责任公司 一种翘八度平面砂布轮
FI125880B (fi) 2009-04-29 2016-03-31 Picote Oy Ltd Työkalu ja menetelmä putkiston saneeraamiseen
WO2012000647A1 (fr) 2010-06-29 2012-01-05 Gerd Eisenblätter Gmbh Porte-outil doté d'un renforcement en fibres de jute, ainsi que procédé de moulage par injection pour la production d'un tel porte-outil
DE102012021267B4 (de) 2012-09-18 2022-02-24 Ppr Gmbh Fächerschleifscheibe
ES2553006T3 (es) 2012-09-18 2015-12-03 Ppr Gmbh Muela abrasiva de abanico
BR112016027187B1 (pt) 2014-05-29 2022-04-12 Saint-Gobain Abrasives, Inc. Artigo abrasivo com um núcleo incluindo um material de polímero, roda abrasiva e seu método de preparação
DE102015011442A1 (de) 2015-09-01 2017-03-02 Gerd Eisenblätter Gmbh Fächerschleifscheibe, Tragteller dafür und Verfahren zu deren Herstellung
DE102016002400A1 (de) 2016-02-29 2017-08-31 Gerd Eisenblätter Gmbh Schleifscheibe und Tragteller dafür
DE102016002401A1 (de) 2016-02-29 2017-08-31 Gerd Eisenblätter Gmbh Schleifscheibe und Tragteller dafür

Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
AU1735295A (en) * 1994-02-22 1995-09-04 Minnesota Mining And Manufacturing Company Method for making an endless coated abrasive article and the product thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021127343A1 (de) 2021-10-21 2023-04-27 Klingspor Ag Schleifvorrichtung mit Trägerrad und Schleifmittel

Also Published As

Publication number Publication date
EP1105252B1 (fr) 2007-02-14
ATE353739T1 (de) 2007-03-15
ES2280228T3 (es) 2007-09-16
EP1105252A1 (fr) 2001-06-13
DE50014059D1 (de) 2007-03-29
DE29910931U1 (de) 1999-08-26
ES2476795T3 (es) 2014-07-15
EP1741516A1 (fr) 2007-01-10
WO2000078506A1 (fr) 2000-12-28

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