EP0446626B1 - Manchon de meulage - Google Patents

Manchon de meulage Download PDF

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Publication number
EP0446626B1
EP0446626B1 EP91101877A EP91101877A EP0446626B1 EP 0446626 B1 EP0446626 B1 EP 0446626B1 EP 91101877 A EP91101877 A EP 91101877A EP 91101877 A EP91101877 A EP 91101877A EP 0446626 B1 EP0446626 B1 EP 0446626B1
Authority
EP
European Patent Office
Prior art keywords
grinding
sleeve
carrier sleeve
carrier
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.)
Expired - Lifetime
Application number
EP91101877A
Other languages
German (de)
English (en)
Other versions
EP0446626A1 (fr
Inventor
Günther Wendt
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0446626A1 publication Critical patent/EP0446626A1/fr
Application granted granted Critical
Publication of EP0446626B1 publication Critical patent/EP0446626B1/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
    • 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

Definitions

  • the invention is directed to an abrasive sleeve according to the preamble of claim 1 (see DE-U-8523363).
  • a grinding, cleaning or satin wheel with a rigid core and a working pad arranged thereon which consists of alternately arranged, interspersed with abrasive plastic fleece lamellas and abrasive cloth lamellas, these, partially overlapping, on the Core are arranged parallel to its axis.
  • the work cushion can be attached by gluing, pressing or pouring into the plastic core.
  • the rigid core requires the formation of a work cushion in order to enable cleaning or satinizing workpieces in addition to machining.
  • the disks have diameters of over 100 mm and the ratio of core diameter to lamella width is approximately 1: 1.
  • So-called grinding sleeves differ from grinding tools of this type, which are clamped onto an elastic core when in use.
  • the outer surface of cylindrical or conical sleeves has different abrasives.
  • the known grinding sleeves are produced in the so-called winding process, in which grinding lines are spirally wound onto a cylinder or cone as the carrier material and glued to the carrier material. If the flat backing material for the abrasive layer is sufficiently thick and strong, such abrasive sleeves can also be produced without a backing sleeve by winding abrasive cloth or abrasive grains in the form of a tape on a base using the winding method on a mandrel and gluing the tape edges together.
  • the abrasive sleeves manufactured using the spiral winding process do not always prove to be sufficiently stable.
  • the seams are a weak point and can tear open.
  • DE-U-85 23 363 relates to a hollow cylinder equipped with grinding flaps projecting approximately tangentially to the lateral surface for grinding the surface of pressure rollers in a winding device for elongated products.
  • the grinding lamellae are fastened on the outside of a bandage, which is in engagement with a counter-sticking coating of the hollow cylinder outer surface via an adhesive coating attached to the inside of the bandage.
  • This grip engagement position is secured by tying the end regions of the bandage which are opposite one another in the axial direction of the hollow cylinder and are provided with eyelets.
  • the object of the invention is to provide an improved structural design of grinding sleeves, in particular one in which the risk of clogging of the grinding grains is reduced.
  • a cylindrical or conical grinding sleeve with an elastic carrier sleeve on which overlapping rectangular grinding lamellae, the edges of which extend parallel or at an angle corresponding to the slope of the cone of the carrier sleeve, to the longitudinal axis of the carrier sleeve characterized in that the carrier sleeve consists of fabric, cardboard or hard cardboard, that the grinding flaps are glued to the outer surface of the carrier sleeve and that the ratio of the sleeve diameter to the width of the grinding flaps is a maximum of 3: 1.
  • the width of the grinding flaps is the distance between the outer edge of the grinding flaps and the outer surface of the carrier sleeve. As the length of the grinding flaps is the extension parallel to the longitudinal axis of the carrier sleeve.
  • the abrasive flaps consist of abrasive grains bound on a base, for example commercially available abrasive cloth or abrasive cloth.
  • the grit of the actual grinding material depends on the intended use of the grinding sleeves.
  • the lamellae are radially glued onto the outside surface of the sleeve in the center.
  • the grinding lamellae extend tangentially to the surface of the carrier sleeve.
  • the grinding flaps can also be arranged at a larger angle tangentially to the surface of the carrier sleeve.
  • the grinding lamellae extend outwards from the surface of the carrier sleeve at an angle ⁇ to the tangential surface of 0-30 °.
  • Suitable abrasive grains for the abrasive flaps are aluminum oxide, zirconium oxide, silicon dioxide, corundum, silicon carbide or other carbides, metal nitrides, for example cubic boron nitride, which are bonded to the backing in a known manner.
  • the grinding flaps are preferably 5-25 mm wide. They usually have a length such that they extend over the entire width of the carrier sleeve.
  • the width of the grinding lamella depends on the outside diameter of the sleeve, the grinding lamella becoming wider as the outside diameter increases.
  • the ratio of sleeve diameter: lamella width is a maximum of 3: 1.
  • the sleeve diameter can be between 20 and 100 mm.
  • the elastic carrier sleeve is made of fabric, cardboard or hard fibers and has a relatively thin wall and can be cylindrical or conical.
  • the grinding flaps are glued to the outer surface of the carrier sleeve with a suitable adhesive.
  • Single- or multi-component adhesives that provide good adhesion both with the materials of the carrier sleeve and with the grinding flaps are commercially available.
  • the grinding surface formed according to the invention from grinding flaps in comparison to the known grinding sleeves has the advantage that a larger grinding surface is available and, because of the overlapping grinding flaps, an unused piece of fresh abrasive surface of an underlying grinding flap is always available for grinding.
  • the anchoring of the grinding flaps on the outer surface of the carrier sleeve is surprisingly firm, so that the grinding sleeves according to the invention meet the safety requirements even at high speeds of rotation.
  • the abrasive sleeves are pushed onto an elastic base body provided with a drive shaft, which is designed such that it expands somewhat when it rotates under the action and thereby tightens the sleeve.
  • Fig. 1 shows schematically a side view of the embodiment of the grinding sleeve according to the invention, in which the grinding flaps 1 are fastened overlapping on the outer surface on a carrier sleeve 2.
  • the angle ⁇ to the tangential surface is shown schematically in the figure.
  • the grinding lamellae can thus be arranged such that they extend in the tangential surface or are glued to the outside at an angle ⁇ extending from the tangential surface.
  • Fig. 2 shows schematically a sleeve according to the invention in view of the grinding surface, with no grinding flaps 1 being shown on part of the carrier sleeve 1.
  • the abrasive layer from the individual abrasive flaps 1 is shown schematically in a schematic cross-sectional illustration.
  • Fig. 3 shows a grinding sleeve according to the invention with a conical carrier sleeve 2, on which the grinding flaps 1 are glued in a top view. Also in this representation, the sleeve, the abrasive layer is schematically indicated in cross section on the underside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (4)

  1. Manchon abrasif cylindrique ou conique comportant un manchon-support élastique (2) sur lequel sont disposées des lamelles abrasives rectangulaires (1) qui se chevauchent à la manière de tuiles, lamelles abrasives dont les bords s'étendent parallèlement à l'axe longitudinal du manchon-support (2), ou avec un angle qui correspond à l'inclinaison du cône du manchon-support (2),
       caractérisé en ce que,
       le manchon-support (2) est fait de tissu, de carton ou de carton dur,
       en ce que les lamelles abrasives (1) sont collées sur la surface externe du manchon-support, et
       en ce que le rapport diamètre du manchon sur largeur des lamelles abrasives (2) atteint 3 : 1 au maximum.
  2. Manchon abrasif selon la revendication 1, caractérisé en ce que les lamelles abrasives (1) s'étendent tangentiellement à la surface du manchon-support (2).
  3. Manchon abrasif selon la revendication 2, caractérisé en ce que les lamelles abrasives (1) s'étendent à partir de la surface du manchon-support (2) sous un angle par rapport au plan tangentiel de 0 à 30° vers l'extérieur.
  4. Manchon abrasif selon l'une des revendications 1 à 3, caractérisé en ce que les lamelles abrasives ont une largeur de 5 à 25 mm et présentent une longueur telle qu'elles s'étendent sur toute la largeur du manchon-support (2).
EP91101877A 1990-03-13 1991-02-11 Manchon de meulage Expired - Lifetime EP0446626B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007928A DE4007928A1 (de) 1990-03-13 1990-03-13 Schleifhuelse
DE4007928 1990-03-13

Publications (2)

Publication Number Publication Date
EP0446626A1 EP0446626A1 (fr) 1991-09-18
EP0446626B1 true EP0446626B1 (fr) 1994-08-10

Family

ID=6402061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101877A Expired - Lifetime EP0446626B1 (fr) 1990-03-13 1991-02-11 Manchon de meulage

Country Status (3)

Country Link
EP (1) EP0446626B1 (fr)
DE (2) DE4007928A1 (fr)
ES (1) ES2060214T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29517989U1 (de) * 1995-11-14 1996-01-18 Heinrich Lippert GmbH, 74925 Epfenbach Werkzeug zur mechanischen Oberflächenbehandlung
US5871399A (en) * 1996-08-30 1999-02-16 Merit Abrasive Products, Inc. Flap wheel
US5722881A (en) * 1996-08-30 1998-03-03 Merit Abrasive Products, Inc. Flap wheel
DE19812515A1 (de) * 1998-03-21 1999-09-23 M & F Entw & Patentverwertungs Lamellenschleifwerkzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1986971U (de) * 1968-06-06 Kemper Kontakt Gert Kemper 5600 Wuppertal Vohwmkel Schleif Putz oder Satimerscheibe
US2774200A (en) * 1955-10-10 1956-12-18 Block Aleck Abrasive polishing device
GB938223A (en) * 1959-10-30 1963-10-02 Rexall Drug Chemical Abrasive devices
DE8523363U1 (de) * 1985-08-14 1985-09-26 Kemper-Kontakt Gert Kemper GmbH & Co KG, 5600 Wuppertal Mit Schleiflamellen ausgestatteter Hohlzylinder
DE8903423U1 (de) * 1989-03-18 1989-05-03 Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken GmbH & Co KG, 5250 Engelskirchen Schleiflamellenscheibe

Also Published As

Publication number Publication date
DE59102462D1 (de) 1994-09-15
DE4007928A1 (de) 1991-09-19
ES2060214T3 (es) 1994-11-16
DE4007928C2 (fr) 1992-07-30
EP0446626A1 (fr) 1991-09-18

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