EP0446626A1 - Manchon de meulage - Google Patents

Manchon de meulage Download PDF

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Publication number
EP0446626A1
EP0446626A1 EP91101877A EP91101877A EP0446626A1 EP 0446626 A1 EP0446626 A1 EP 0446626A1 EP 91101877 A EP91101877 A EP 91101877A EP 91101877 A EP91101877 A EP 91101877A EP 0446626 A1 EP0446626 A1 EP 0446626A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
grinding
abrasive
carrier sleeve
carrier
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.)
Granted
Application number
EP91101877A
Other languages
German (de)
English (en)
Other versions
EP0446626B1 (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
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 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, particularly one with a specially designed abrasive surface.
  • 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 grinding 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 of workpieces in addition to machining.
  • the discs 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 firm, 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 backing on a mandrel after the winding process and gluing the tape edges together.
  • the abrasive sleeves manufactured according to the spiral winding process do not always prove to be sufficiently stable.
  • the seams are a weak point and can tear open.
  • the object of the invention is to provide an improved structural design of abrasive sleeves, in particular one in which the risk of clogging of the abrasive grains is reduced.
  • cylindrical or conical abrasive sleeves with bonded abrasive grains arranged on a carrier sleeve which is characterized in that on the outer surface of the elastic carrier sleeve made of fabric, cardboard or hardboard, overlapping rectangular abrasive flaps, the edges of which are parallel or under one Angle, which corresponds to the slope of the cone of the carrier sleeve, extend to the longitudinal axis of the carrier sleeve, is fastened by means of adhesive and the behavior of the sleeve diameter to the width of the grinding flaps is a maximum of 3: 1.
  • the width of the grinding lamella is the distance between the outer edge of the grinding lamella and the outer surface of the carrier sleeve.
  • the length parallel to the longitudinal axis of the carrier sleeve is referred to as the length of the grinding flaps.
  • 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 abrasive material depends on the intended use of the abrasive 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. As a rule, they are of such a length that they extend over the entire width of the carrier sleeve.
  • the width of the grinding flaps depends on the outside diameter of the sleeve, the grinding flaps 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 with the known grinding sleeves has the advantage that a larger grinding surface is available and, due to 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 abrasive flaps on the outer surface of the carrier sleeve is surprisingly firm, so that the abrasive sleeves according to the invention meet the safety requirements even at high speeds of rotation.
  • the grinding sleeves are pushed onto an elastic base body which is provided with a drive shaft and 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 outwards at an angle ⁇ from the tangential surface.
  • FIG. 2 schematically shows 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 representation.
  • 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)
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 true EP0446626A1 (fr) 1991-09-18
EP0446626B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018060A1 (fr) * 1995-11-14 1997-05-22 Heinrich Lippert Gmbh Outil pour traitement mecanique de surfaces
US5722881A (en) * 1996-08-30 1998-03-03 Merit Abrasive Products, Inc. Flap wheel
EP0826462A1 (fr) * 1996-08-30 1998-03-04 Merit Abrasive Products, Inc. Meule à lamelles
DE19812515A1 (de) * 1998-03-21 1999-09-23 M & F Entw & Patentverwertungs Lamellenschleifwerkzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018060A1 (fr) * 1995-11-14 1997-05-22 Heinrich Lippert Gmbh Outil pour traitement mecanique de surfaces
US5722881A (en) * 1996-08-30 1998-03-03 Merit Abrasive Products, Inc. Flap wheel
EP0826462A1 (fr) * 1996-08-30 1998-03-04 Merit Abrasive Products, Inc. Meule à lamelles
US5871399A (en) * 1996-08-30 1999-02-16 Merit Abrasive Products, Inc. Flap wheel
DE19812515A1 (de) * 1998-03-21 1999-09-23 M & F Entw & Patentverwertungs Lamellenschleifwerkzeug
US6866572B1 (en) 1998-03-21 2005-03-15 M&F Entwicklungs Plated grinding tool

Also Published As

Publication number Publication date
EP0446626B1 (fr) 1994-08-10
DE59102462D1 (de) 1994-09-15
DE4007928A1 (de) 1991-09-19
ES2060214T3 (es) 1994-11-16
DE4007928C2 (fr) 1992-07-30

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