GB2417705A - Abrasive belt for a grinding device - Google Patents
Abrasive belt for a grinding device Download PDFInfo
- Publication number
- GB2417705A GB2417705A GB0517817A GB0517817A GB2417705A GB 2417705 A GB2417705 A GB 2417705A GB 0517817 A GB0517817 A GB 0517817A GB 0517817 A GB0517817 A GB 0517817A GB 2417705 A GB2417705 A GB 2417705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support body
- belt
- grinding device
- flexible support
- abrasive belt
- 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.)
- Withdrawn
Links
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 229920003052 natural elastomer Polymers 0.000 abstract description 2
- 229920001194 natural rubber Polymers 0.000 abstract description 2
- 238000004073 vulcanization Methods 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 229920003051 synthetic elastomer Polymers 0.000 abstract 1
- 239000005061 synthetic rubber Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 241000283073 Equus caballus Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
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)
Abstract
A flexible abrasive belt comprises abrasive loop 1 which is bonded to flexible backing layer 4. The backing layer may comprise a natural or synthetic rubber and be applied raw to the belt and then cured in situ (vulcanisation). By choosing an appropriate Shore hardness for the backing layer, the belt may be tailored for grinding a variety of materials eg. stone, steel or aluminium. The belt may be formed with keying structure 6 to assist in mounting it on the grinding tool. The belt may be formed as a conventional belt driven by a plurality of rollers or as an elastic cylindrical body for fitting over a single roller.
Description
24 1 7705
GRINDING DEVICE
The present invention relates to a grinding device with an abrasive belt attached to a drivable flexible support body.
Grinding devices, wherein a hollow cylindrically shaped abrasive belt is attached onto a cylindrical elastic support body, are known from the "PFERD 2000" company brochure of PFERD-VITEX AG, CH-8306 Bruttisellen. The expansion of the support body is facilitated by slits. As a result, the abrasive belt installed thereover is tensioned and the elasticity increased. The abrasive belt should sit on the support body in a non-slip manner. Too low an elasticity of the support body can cause the uneven areas of the workpiece to be ground to left unmachined. With a highly elastic support body the abrasive belt does not sit on the support body to be sufficiently non-slip, thus rendering the machining of a workplace practically impossible. Moreover, wear of the abrasive belt is relatively high, since the local attrition of the relatively highly tensioned abrasive belt can be considerable on a support body with only low elasticity, and on a highly elastic support body the less tensioned abrasive belt tends to form corrugations and must be changed more frequently. Moreover, the known elastic support body is constructed on a rigid, cost-incurring base unit, which can also be damaged when changing the abrasive belt and must then be replaced.
A roller for polishing surfaces of workpieces made from stone or stonelike materials with a metal core, which can be received on a drivable spindle, and an outer layer containing a mineral polishing agent bonded by binder is known from DE-C I - 10012919. The metal core is provided with a jacket or covering made from rubber- elastic material, which receives the outer layer made from granulate, which is incorporated into a matrix formed by adhesive and contains the mineral polishing agent bonded by a binder, wherein the adhesive in solidified state is more elastic than the granulate. During production of the elastic outer layer made of adhesive, the abrasive granulate must be incorporated into the adhesive and evenly distributed therein. This incorporation often poses difficulties and is dependent upon the structure of the abrasive granulate. Moreover, the rigid metal core prevents the formation of grinding tools with any desired elasticity.
A further surface machining device is known from DE-U1-29714279. Here, the provided support body to be replaced is a metal piece, which is associated with relatively high costs. An elastic intermediate layer bearing the machining layer is applied to the support body. The disadvantage of this arrangement is that relatively high costs are incurred through the use of a metal support body. This metal support body must be provided for each replacement tool, whether coarse or fine, soft or hard.
Aspects of the present invention seek to provide a grinding device of the above type, which can be used with an elastic support body with relatively low elasticity as well as with a highly elastic support body, and is economically advantageous.
According to the present invention, there is provided a grinding device with an abrasive belt attached to a drivable flexible support body wherein the abrasive belt formed in one piece with the flexible support body and the flexible support body is detachably fastened directly to drive means for the device.
With this arrangement, the abrasive belt and the flexible support body are held firmly against one another, wherein the flexible support body is detachably fastened directly on the drive. These measures allow a grinding device to be created that can be advantageously operated both with a support body with relatively low elasticity and with a highly elastic support body, and is thus suitable for machining a wide variety of workpieces such as stone, steel, aluminium in the central or edge regions or metal sheets. The direct fastening of the flexible support body on the drive does not require the use of a rigid, cost-incurring base unit, from which economic advantages result.
The flexible support body is advantageously made from an elastomer. Elastomers are, for example, natural rubber, chlorinated rubber, polybutadiene, polyurethanes, silicon rubber etc. The production of the flexible support body can be advantageously arranged by suitable selection of the elastomer. Thus, the flexible support body made from an elastomer can be firmly connected directly to the rear side of the abrasive belt and even cured there. l
The Shore hardness of the flexible support body advantageously lies between 40 and Shore. By suitable selection of the Shore hardness, grinding devices can be created for machining a wide variety of workplaces such as stone, steel, aluminium etc. The shape of the flexible support body can be adapted to the drive provided. Thus, the flexible support body can be a laterally guided endless belt running on drive cylinders The flexible support body can also undertake the lateral guidance of the endless belt.
In this case, on its rear side facing away from the abrasive belt the endless belt can be provided with guiding means, for example at least one projecting endless wedge-type guide piece. The wedge-type guide piece is guided in a groove ofthe drive cylinder, which results in a secure lateral guidance of the support body with the abrasive belt.
The flexible support body can also be an elastic cylindrical body. The body can advantageously be installed in that its central bore can be slipped onto a drive shaft to be secure against relative rotation. Replacement of a worn abrasive belt is particularly simple with this arrangement.
Preferred embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings of which: Figure I shows a grinding device with an endless belt as a support body and an abrasive belt; Figure 2 shows the cross-section of an endless belt supporting an abrasive belt with an endless wedge-type guide piece on the rear side of the endless belt with drive cylinders, and Figure 3 shows a cylindrical support body with a cylindrical abrasive belt.
Figure 1 shows a grinding device with an endless belt 1, which is connected to drive means in the form of two drive cylinders 2, 3. The endless belt I comprises a flexible support body 4 and an abrasive belt 5 connected in one piece to the support body. The abrasive belt 5 and the support body 4 located below it are held firmly against one another. The support body 4 is made from an elastomer, which is firmly joined to the abrasive belt 5 by vulcanisation or by another suitable method. The Shore hardness of l the support body 4 in the case of support and abrasive layers in one piece is determined by the workpiece to be ground. A soft support body 4 would be advantageous to enable a thin metal sheet to be ground. A hard support body 4 would be desirable for grinding a stone. In practical operation, a Shore hardness of between and 85 is selected for the support body 4.
The endless belt I shown in Figure I is provided with conventional lateral guidance.
The lateral guidance can be combined with the support body 4 of the endless belt 1, as Figure 2 shows. On its rear side facing away from the abrasive belt 5, the support body 4 is provided with a guiding member or keying block in the form of a projecting endless wedge-type guide piece 6. This wedge-type guide piece 6 is guided in a groove 7 of the drive cylinder 2 and also benefits the adhesion between the drive cylinder 2 and the endless belt 1.
Figure 3 shows a further variant of the described grinding device. The flexible support body 8 is a cylindrical body here. The abrasive belt 9 is formed in one piece with this support body 8. The support body 8 has a central bore 10, which is provided with longitudinal grooves 11. This support body 8 can be slipped or pushed simply onto a drive shaft provided with longitudinal ribs. The replacement of this support body 8 is particularly simple, it only needs to be removed from the drive shaft (not shown) and replaced by a replacement piece.
Claims (8)
1. A grinding device with an abrasive belt attached to a drivable flexible support body, wherein in that the abrasive belt is formed in one piece with the flexible support body, and the flexible support body is detachably fastened directly to drive means for the device.
2. A grinding device according to Claim 1, wherein in that the flexible support body is made from an elastomer.
3. A grinding device according to Claim 2, wherein in that the flexible support body made from an elastomer is firmly joined directly to the rear side of the abrasive belt.
4. A grinding device according to any preceding claim, wherein the Shore hardness of the flexible support body lies between 40 and 85 Shore.
5. A grinding device according to any preceding claim, wherein the flexible support body is a laterally guided endless belt.
6. A grinding device according to Claim 5, wherein, on its rear side facing away from the abrasive belt, the endless belt is provided with at least one projecting endless keying number.
7. A grinding device according to any of Claims I to 4, wherein the flexible support body is an elastic cylindrical body.
8. A grinding device substantially as herein described with reference to each of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004042319A DE102004042319A1 (en) | 2004-09-01 | 2004-09-01 | grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0517817D0 GB0517817D0 (en) | 2005-10-12 |
| GB2417705A true GB2417705A (en) | 2006-03-08 |
Family
ID=35220700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0517817A Withdrawn GB2417705A (en) | 2004-09-01 | 2005-09-01 | Abrasive belt for a grinding device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060046629A1 (en) |
| CH (1) | CH697234B1 (en) |
| DE (1) | DE102004042319A1 (en) |
| GB (1) | GB2417705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010023436A1 (en) | 2008-09-01 | 2010-03-04 | Hire Technicians Group Ltd | Sanding apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3599050A1 (en) * | 2018-07-27 | 2020-01-29 | Steinemann Technology AG | Grinding assembly for a grinding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB923126A (en) * | 1959-07-28 | 1963-04-10 | Frederick Borwin Anthon | Improvements in or relating to combined abrasive and polishing structures |
| GB1006005A (en) * | 1961-06-14 | 1965-09-29 | Armour & Co | Improvements in or relating to abrasive articles |
| GB2291824A (en) * | 1994-08-04 | 1996-02-07 | Falk Klaus Ruediger | Abrasive product having a non-resilient supporting layer and a resilient body located between the supporting layer and the abrasive layer |
| US6066188A (en) * | 1991-12-20 | 2000-05-23 | Minnesota Mining And Manufacturing Company | Coated abrasive belt with an endless seamless backing and method of preparation |
| US20020016144A1 (en) * | 2000-08-01 | 2002-02-07 | Peter Jost | Abrasive belt for a belt grinding machine |
| EP1203638A1 (en) * | 2000-11-02 | 2002-05-08 | Ezio Giacomelli | Abrasive belt sleeve for sanding machines |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1508160A (en) * | 1965-11-12 | 1968-01-05 | Pirelli | Improvements to toothed wheel and toothed belt transmissions |
| US3982359A (en) * | 1968-06-21 | 1976-09-28 | Roc A.G. | Abrasive member of bonded aggregates in an elastomeric matrix |
| US4148225A (en) * | 1977-10-31 | 1979-04-10 | The Gates Rubber Company | Belt sprocket |
| JPH07102500B2 (en) * | 1991-09-20 | 1995-11-08 | 三ツ星ベルト株式会社 | V-ribbed belt polishing method |
| US5681612A (en) * | 1993-06-17 | 1997-10-28 | Minnesota Mining And Manufacturing Company | Coated abrasives and methods of preparation |
| DE29714279U1 (en) * | 1997-08-09 | 1997-10-30 | Dobener, Bruno, 35713 Eschenburg | Surface processing device |
| DE10012919C1 (en) * | 2000-03-16 | 2001-06-28 | Freimut Storrer | Roller for polishing surfaces of workpiece made of stone, comprises metal core on spindle, outer layer, and rubber elastic material mantle that holds it |
-
2004
- 2004-09-01 DE DE102004042319A patent/DE102004042319A1/en not_active Withdrawn
-
2005
- 2005-08-23 CH CH01377/05A patent/CH697234B1/en not_active IP Right Cessation
- 2005-08-31 US US11/214,859 patent/US20060046629A1/en not_active Abandoned
- 2005-09-01 GB GB0517817A patent/GB2417705A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB923126A (en) * | 1959-07-28 | 1963-04-10 | Frederick Borwin Anthon | Improvements in or relating to combined abrasive and polishing structures |
| GB1006005A (en) * | 1961-06-14 | 1965-09-29 | Armour & Co | Improvements in or relating to abrasive articles |
| US6066188A (en) * | 1991-12-20 | 2000-05-23 | Minnesota Mining And Manufacturing Company | Coated abrasive belt with an endless seamless backing and method of preparation |
| GB2291824A (en) * | 1994-08-04 | 1996-02-07 | Falk Klaus Ruediger | Abrasive product having a non-resilient supporting layer and a resilient body located between the supporting layer and the abrasive layer |
| US20020016144A1 (en) * | 2000-08-01 | 2002-02-07 | Peter Jost | Abrasive belt for a belt grinding machine |
| EP1203638A1 (en) * | 2000-11-02 | 2002-05-08 | Ezio Giacomelli | Abrasive belt sleeve for sanding machines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010023436A1 (en) | 2008-09-01 | 2010-03-04 | Hire Technicians Group Ltd | Sanding apparatus |
| US8784163B2 (en) | 2008-09-01 | 2014-07-22 | Hire Technicians Group Ltd. | Sanding apparatus |
| AU2009286483B2 (en) * | 2008-09-01 | 2014-12-11 | Hire Technicians Group Ltd | Sanding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004042319A1 (en) | 2006-03-02 |
| GB0517817D0 (en) | 2005-10-12 |
| CH697234B1 (en) | 2008-07-31 |
| US20060046629A1 (en) | 2006-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |