EP1908554B1 - Schleifteller zur Vakuumbefestigung von Schleifmaterial - Google Patents

Schleifteller zur Vakuumbefestigung von Schleifmaterial Download PDF

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Publication number
EP1908554B1
EP1908554B1 EP07117626A EP07117626A EP1908554B1 EP 1908554 B1 EP1908554 B1 EP 1908554B1 EP 07117626 A EP07117626 A EP 07117626A EP 07117626 A EP07117626 A EP 07117626A EP 1908554 B1 EP1908554 B1 EP 1908554B1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding plate
plate
sanding pad
sanding
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
EP07117626A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1908554A1 (de
Inventor
Karsten Oesterheld
Thomas Neeb
Klaus Messerschmidt
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.)
OnSystem oHG
Original Assignee
OnSystem oHG
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 OnSystem oHG filed Critical OnSystem oHG
Publication of EP1908554A1 publication Critical patent/EP1908554A1/de
Application granted granted Critical
Publication of EP1908554B1 publication Critical patent/EP1908554B1/de
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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
    • B24D9/08—Circular back-plates for carrying flexible material
    • B24D9/10—Circular back-plates for carrying flexible material with suction means for securing the material
    • 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
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface

Definitions

  • the invention relates to a sanding pad for a grinding device, which has a receptacle, is attached to the abrasive material by suction, wherein in the sanding pad a channel for fixing the abrasive material is arranged by vacuum perpendicular to the grinding plane, which is located in the central region of the sanding pad.
  • a sanding pad which absorbs flexible abrasive material by suction.
  • the flexible abrasive material is formed from abrasive grain coated backing material.
  • the sanding pad consists of a Primasaugkanal, of which star-shaped horizontal Saugaugäle in the direction Branch off the outside of the sanding plate and open into a plurality of vertical suction channels evenly distributed in the sanding disk. This arrangement has some disadvantages. Only flexible abrasive material can be used.
  • the sanding pad must be made of non-deformable material when machining the workpieces to maintain the vacuum.
  • the solution shown is only suitable for rotary sander. There are several suction openings on the abrasive material side of the sanding pad necessary to fix the flexible abrasive material.
  • a machining apparatus in which a sanding pad is provided with a receptacle to which sanding material is attached by suction.
  • a channel for fixing the abrasive material is arranged by means of vacuum perpendicular to the grinding plane.
  • the channel is located in the central area of the sanding plate.
  • Another generic sanding pad is from the WO-A-99/67057 known.
  • the invention has for its object to provide a vacuum attachment of abrasive material to a grinder, with which the processing of flat and uneven surfaces is possible, with a cost-effective, yet secure attachment is also possible for small abrasives.
  • the grinding disc according to the invention has for attachment to a grinding machine via a receptacle, is attached to the abrasive material by suction.
  • the sanding pad has a channel at the center of the surface, which is perpendicular to the sanding plane and which runs from the sanding material side to the opposite side of the sanding surface Sanding plate runs.
  • the attachment of an abrasive material is achieved without manual action by a vacuum is applied to an opening of a vacuum channel, which is located on the side facing away from the abrasive material of the sanding pad, which produces a non-positive connection of the abrasive material with the sanding pad.
  • the saving of fasteners on the back of the abrasive material results in a significant cost savings.
  • By eliminating manual attachment of the abrasive material also reduces the set-up of the grinding machine.
  • the vacuum can be generated with the help of one or more hoses and running through the inside of the machine channels or hoses on the sanding pad, so that a mobility of the sanding pad assembly when used in eccentric, linear or orbital sanders is made possible.
  • Any carrier material coated with abrasive grain can be used in the arrangement without additional coating of the backing material back.
  • material for the sanding plate metals or plastics can be used.
  • the execution of a sanding plate made of plastic allows due to the elastic deformability of the sanding pad an adaptation of the sanding pad to a workpiece.
  • the device according to the invention makes it possible to securely fasten very thin and flexible abrasives with very small diameters of support plates.
  • the central arrangement of the suction opening and the flexible design of abrasive and receiving plate not only flat surfaces, but also curved surfaces can be edited.
  • the abrasive can be tilted on the part to be machined without the vacuum is interrupted.
  • FIG. 1 is a rotary grinding machine shown.
  • the grinding device 1 contains the sanding pad 2, a vacuum channel 4 extending through the drive shaft 3 and the sanding pad 2 and the abrasive material 5 fastened by vacuum.
  • the sanding pad 2 is connected to the drive shaft 3 and via this to the drive unit 7.
  • the abrasive material 5 is preferably designed as a round paper sheet with abrasive bodies mounted thereon. However, other forms are possible, for example, it may be formed as a wave edge.
  • FIG. 2 shows an enlarged schematic sectional view of the in FIG. 1 contained grinding plate 2 along the section line A-A '.
  • the abrasive material 5 is fixed by means of vacuum on the underside of the sanding pad 2.
  • the threaded piece 6 connects the sanding pad 2 with the in FIG. 1 the drive shaft 3.
  • the vacuum is preferably generated by means of ejectors, not shown here. It can also be produced with venturi nozzles, pumps, blowers and suckers.
  • the vacuum is supplied to the grinder 1 via one or more hoses or through channels running inside the machine and directed via the vacuum channel 5 to the abrasive side of the sanding plate 2.
  • the abrasive material 5 adheres by the suction effect on the sanding pad 2, wherein the sanding pad 2 consists of a material which ensures the highest possible static friction between sanding pad 2 and 5 abrasive material. As a result, a displacement of the abrasive material 5 is prevented on the sanding plate 2 and allows the safe processing of the workpieces.
  • the sanding pad 2 consists of an upper part 2.1 and a lower part 2.2.
  • Plastic or metal is preferably used for the upper part 2.1 consisting of a solid carrier material, while the lower part 2.2 consists of a flexible material, for example neoprene. It is also possible that the sanding pad 2 has on its underside, against which the abrasive 5, radial short slots which are connected to the central of the outlet opening of the vacuum channel and effect an improved contact of the abrasive 5.
  • the use of elastic plastic material for the sanding pad 2 allows the machining of curved workpieces. It is particularly advantageous that the design according to the invention can also be used for small diameters and single-handed grinders.
  • FIG. 3 shows an embodiment in which in the lower part 2.2 of the sanding pad 2, a milling 2.2.1 is incorporated.
  • the milled recess 2.2.1 is mounted as a circumferential groove on the lateral surface of the lower part 2.2.
  • a stable disc 2.3 is attached at the bottom of the lower part 2.2, at which the abrasive 5 is sucked in.
  • FIG. 4 shows an embodiment for the design of a flexible abrasive material 5.
  • the abrasive material 5 is designed as a round paper leaflet with abrasive bodies attached thereto.
  • apertures are made around the center where the leaflet is drawn to the sanding pad 2.
  • circular slits 5.1... 5.4 are stamped for this purpose. It is also possible that incisions or stampings of different shapes are appropriate. In addition to better processing possibility of curved surfaces, this also results in improved adhesion of the paper on the sanding pad. 2
  • FIG. 5 an arrangement can be seen in which the sanding pad 2 is mounted in an additional device 9.
  • the attachment 9 is attached to a commercial hand grinder.
  • the vacuum channel 4 is connected via a hose connection with a vacuum pump.
  • the sanding pad 2 is driven by a belt drive 10 from the grinding wheel 11 of a hand grinder. This design allows for easy and inexpensive attachment of the pneumatic assembly to existing equipment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP07117626A 2006-10-02 2007-10-01 Schleifteller zur Vakuumbefestigung von Schleifmaterial Active EP1908554B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006047007A DE102006047007A1 (de) 2006-10-02 2006-10-02 Vakuumbefestigung von Schleifmaterial

Publications (2)

Publication Number Publication Date
EP1908554A1 EP1908554A1 (de) 2008-04-09
EP1908554B1 true EP1908554B1 (de) 2009-04-22

Family

ID=38838948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117626A Active EP1908554B1 (de) 2006-10-02 2007-10-01 Schleifteller zur Vakuumbefestigung von Schleifmaterial

Country Status (4)

Country Link
EP (1) EP1908554B1 (es)
AT (1) ATE429308T1 (es)
DE (2) DE102006047007A1 (es)
ES (1) ES2326346T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019119333A1 (de) * 2019-07-17 2021-01-21 Rud. Starcke Gmbh & Co. Kg Schleifvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900005874A1 (it) * 2019-04-16 2020-10-16 Premier S R L Gruppo abrasivo migliorato per materiali ceramici e/o lapidei
WO2023049214A1 (en) * 2021-09-21 2023-03-30 Buff And Shine Manufacturing, Inc. Buffing pad

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1765808A (en) * 1926-02-23 1930-06-24 Carborundum Co Surfacing apparatus
DD225093A1 (de) * 1984-07-02 1985-07-24 Sachsenring Automobilwerke Schleifteller zur aufnahme flexibler schleifblaetter mittels saugwirkung
DE3742038A1 (de) * 1987-12-11 1989-06-22 Gerd Braasch Schleifkoerper fuer die bearbeitung von oberflaechen, insbesondere holzoberflaechen
DE29809710U1 (de) * 1998-05-29 1998-09-03 Müller, Heinrich, 57635 Wölmersen Maschinelle Bearbeitungsvorrichtung
SE511708C2 (sv) * 1998-06-23 1999-11-08 Ekamant Ab Tryckluftsdrivet handslipverktyg med en ejektorenhet för fastsugning av ett slipark samt stödplatta för användning däri

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019119333A1 (de) * 2019-07-17 2021-01-21 Rud. Starcke Gmbh & Co. Kg Schleifvorrichtung
WO2021008760A1 (de) 2019-07-17 2021-01-21 Rud. Starcke Gmbh & Co. Kg Schleifvorrichtung

Also Published As

Publication number Publication date
DE502007000638D1 (de) 2009-06-04
EP1908554A1 (de) 2008-04-09
ES2326346T3 (es) 2009-10-07
DE102006047007A1 (de) 2008-04-03
ATE429308T1 (de) 2009-05-15

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