EP1908554B1 - Grinding plate for vacuum fixation of grinding material - Google Patents
Grinding plate for vacuum fixation of grinding material Download PDFInfo
- 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
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000006061 abrasive grain Substances 0.000 claims description 3
- 239000012876 carrier material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 1
- 239000003082 abrasive agent Substances 0.000 description 35
- 230000000694 effects Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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)
Abstract
Description
Die Erfindung betrifft einen Schleifteller für ein Schleifgerät, der eine Aufnahme aufweist, an der Schleifmaterial mittels Saugwirkung befestigt wird, wobei im Schleifteller ein Kanal zur Befestigung des Schleifmaterials mittels Vakuum senkrecht zur Schleifebene angeordnet ist, welcher sich im zentralen Bereich des Schleiftellers befindet.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.
Im Stand der Technik sind verschiedene Befestigungsarten von Schleifpapier an einem Schleifteller bekannt. Aus
Aus
In
Aus
Ein weiterer gattungsgemäßer Schleifteller ist aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Vakuumbefestigung von Schleifmaterial an einem Schleifgerät anzugeben, mit dem die Bearbeitung von ebenen und unebenen Flächen möglich ist, wobei eine kostengünstige und trotzdem sichere Befestigung auch für kleine Schleifmittel ermöglicht wird.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.
Die Aufgabe wird erfindungsgemäß mit einem Schleifteller, welcher die im Anspruch 1 angegebenen Merkmale aufweist, gelöst.The object is achieved with a sanding pad, which has the features specified in
Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous developments of the invention are the subject of the dependent claims.
Der erfindungsgemäße Schleifteller verfügt zur Anbringung an einer Schleifmaschine über eine Aufnahme, an der Schleifmaterial mittels Saugwirkung befestigt wird. Der Schleifteller weist im Flächenmittelpunkt einen Kanal auf, der senkrecht zur Schleifebene steht und der von der Schleifmaterialseite zur gegenüberliegenden Seite des Schleiftellers verläuft. Vorteilhaft bei dieser Anordnung ist, dass nur ein Vakuumkanal zur Erzeugung der Haftung notwendig ist.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. An advantage of this arrangement is that only a vacuum channel for generating the adhesion is necessary.
Die Befestigung eines Schleifmaterials wird ohne manuelle Tätigkeit erreicht, indem an einer Öffnung eines Vakuumkanals, die sich an der dem Schleifmaterial abgewandten Seite des Schleiftellers befindet, ein Vakuum angelegt wird, welches eine kraftschlüssige Verbindung des Schleifmaterials mit dem Schleifteller herstellt. Durch die Einsparung von Befestigungsmitteln auf der Rückseite des Schleifmaterials ergibt sich eine erhebliche Kostenersparnis. Durch den Wegfall einer manuellen Befestigung des Schleifmaterials reduziert sich außerdem die Rüstzeit der Schleifmaschine.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.
Das Vakuum kann mit Hilfe eines oder mehrerer Schläuche sowie durch im Inneren der Maschine verlaufende Kanäle oder Schläuche am Schleifteller erzeugt werden, so dass auch eine Beweglichkeit der Schleiftelleranordnung bei dem Einsatz in Exzenter-, Linear- oder Schwingschleifern ermöglicht wird.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.
Es ist jedes mit Schleifkorn beschichtetes Trägermaterial in der Anordnung ohne zusätzliche Beschichtung der Trägermaterialrückseite verwendbar. Als Material für den Schleifteller sind Metalle oder Kunststoffe verwendbar. Die Ausführung eines Schleiftellers aus Kunststoff ermöglicht aufgrund der elastischen Verformbarkeit des Schleiftellers eine Anpassung des Schleiftellers an ein Werkstück.Any carrier material coated with abrasive grain can be used in the arrangement without additional coating of the backing material back. As 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.
Die erfindungsgemäße Vorrichtung ermöglicht es, sehr dünne und flexible Schleifmittel mit sehr kleinen Durchmessern von Trägertellern sicher zu befestigen. Durch die zentrale Anordnung der Ansaugöffnung und die flexible Ausführung von Schleifmittel und Aufnahmeteller können nicht nur plane Flächen, sondern auch gewölbte Flächen bearbeitet werden. Das Schleifmittel kann verkantet auf das zu bearbeitende Teil aufgesetzt werden, ohne dass das Vakuum unterbrochen wird.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.
Im Folgenden wird die Erfindung an einem Ausführungsbeispiel näher erläutert. In der zugehörigen Zeichnung zeigen:
Figur 1- eine schematische Darstellung einer Ausführungsform für eine Rotationsschleifmaschine,
Figur 2- eine Schnittdarstellung durch den Schleifteller entlang der Schnittlinie A - A',
Figur 3- eine Schnittdarstellung entlang der Schnittlinie A - A' durch einen Schleifteller mit Einfräsung im Trägermaterial,
Figur 4- eine spezielle Schleifmittelausführung
und Figur 5- eine Anordnung, bei der der Schleifteller in einer Zusatzeinrichtung an einer handelsüblichen Schleifmaschine angebracht ist
- FIG. 1
- a schematic representation of an embodiment for a rotary grinding machine,
- FIG. 2
- a sectional view through the sanding pad along the section line A - A ',
- FIG. 3
- a sectional view along the section line A - A 'through a grinding plate with milled in the substrate,
- FIG. 4
- a special abrasive version
and - FIG. 5
- an arrangement in which the sanding pad is mounted in an auxiliary device on a commercial grinding machine
In
Aus
- 11
- Schleifgerätsharpener
- 22
-
Schleifteller
- 2.1 Oberteil des Schleiftellers
- 2.2 Unterteil des Schleiftellers
- 2.2.1 Einfräsung2.3 Scheibe
- 2.1 Upper part of the sanding plate
- 2.2 Lower part of the sanding plate
- 2.2.1 Milling2.3 Slice
- 33
- Antriebswelledrive shaft
- 44
- Vakuumkanalvacuum channel
- 55
- Schleifmaterialabrasive material
- 66
- Gewindestückthreaded piece
- 77
- Antriebseinheitdrive unit
- 88th
- Schleifebenegrinding plane
- 99
- Zusatzeinrichtungaccessory
- 1010
- Riemenantriebbelt drive
- 1111
- Schleifscheibegrinding wheel
Claims (5)
- Grinding plate for a grinding device (1), which grinding plate presents a receptacle, with a flexible grinding medium (5), which is fastenable to the receptacle by sucking action, where a channel (4) for fastening the grinding medium (5) using vacuum is arranged vertically to the grinding plane (8) in the grinding plate (2), which channel (4) is located in the central area of the grinding plate (2), characterized in that the channel (4) runs through the center of area of the contact area of the grinding plate (2) with the grinding medium (5), and in that the grinding plate (2) consists of a rigid top part (2.1) and of a bottom part (2.2) made of flexible material.
- Grinding plate as claimed in claim 1, characterized in that a circumferential milled recess (2.2.1) is located in the bottom part (2.2) of the grinding plate (2), and a stable disk (2.3) is fastened at the lower side of the bottom part (2.2).
- Grinding plate as claimed in claims 1 or 2, characterized in that the grinding plate (2) has a base area which corresponds to the working area of rotating grinders, random orbit grinders, linear grinders or vibrating grinders, and in that a carrier material coated with abrasive grain is used as grinding medium (5).
- Grinding plate as claimed in claim 3, characterized in that the grinding medium (5) is designed as a small round sheet of paper which has abrasive particles fastened to it, and which presents breakouts (5.1 ... 5.4) that are located outside of the central area.
- Hand grinder with a grinding plate as claimed in any of the foregoing claims, characterized in that the grinding plate (2) is located on an auxiliary equipment which is connected to the hand grinder and driven by the latter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006047007A DE102006047007A1 (en) | 2006-10-02 | 2006-10-02 | Disc grinder grinding plate, has channel for fixture of grinding material by vacuum normal to grinding plane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1908554A1 EP1908554A1 (en) | 2008-04-09 |
EP1908554B1 true EP1908554B1 (en) | 2009-04-22 |
Family
ID=38838948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07117626A Active EP1908554B1 (en) | 2006-10-02 | 2007-10-01 | Grinding plate for vacuum fixation of grinding material |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1908554B1 (en) |
AT (1) | ATE429308T1 (en) |
DE (2) | DE102006047007A1 (en) |
ES (1) | ES2326346T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021008760A1 (en) | 2019-07-17 | 2021-01-21 | Rud. Starcke Gmbh & Co. Kg | Grinding device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900005874A1 (en) * | 2019-04-16 | 2020-10-16 | Premier S R L | IMPROVED ABRASIVE GROUP FOR CERAMIC AND / OR STONE MATERIALS |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1765808A (en) * | 1926-02-23 | 1930-06-24 | Carborundum Co | Surfacing apparatus |
DD225093A1 (en) * | 1984-07-02 | 1985-07-24 | Sachsenring Automobilwerke | GRINDING PLATE FOR RECEIVING FLEXIBLE GRINDING BLADES BY MEANS OF SUCTION |
DE3742038A1 (en) * | 1987-12-11 | 1989-06-22 | Gerd Braasch | GRINDING BODY FOR THE PROCESSING OF SURFACES, IN PARTICULAR WOOD SURFACES |
DE29809710U1 (en) * | 1998-05-29 | 1998-09-03 | Müller, Heinrich, 57635 Wölmersen | Machine processing device |
SE9802220L (en) * | 1998-06-23 | 1999-11-08 | Ekamant Ab | Compressed air powered hand grinding tool with an ejector unit for suction of a grinding sheet and support plate for use therein |
-
2006
- 2006-10-02 DE DE102006047007A patent/DE102006047007A1/en not_active Withdrawn
-
2007
- 2007-10-01 AT AT07117626T patent/ATE429308T1/en active
- 2007-10-01 ES ES07117626T patent/ES2326346T3/en active Active
- 2007-10-01 EP EP07117626A patent/EP1908554B1/en active Active
- 2007-10-01 DE DE502007000638T patent/DE502007000638D1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021008760A1 (en) | 2019-07-17 | 2021-01-21 | Rud. Starcke Gmbh & Co. Kg | Grinding device |
DE102019119333A1 (en) * | 2019-07-17 | 2021-01-21 | Rud. Starcke Gmbh & Co. Kg | Grinding device |
Also Published As
Publication number | Publication date |
---|---|
EP1908554A1 (en) | 2008-04-09 |
ATE429308T1 (en) | 2009-05-15 |
DE102006047007A1 (en) | 2008-04-03 |
ES2326346T3 (en) | 2009-10-07 |
DE502007000638D1 (en) | 2009-06-04 |
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