EP3846966A1 - Dispositif de ponçage - Google Patents
Dispositif de ponçageInfo
- Publication number
- EP3846966A1 EP3846966A1 EP19762134.5A EP19762134A EP3846966A1 EP 3846966 A1 EP3846966 A1 EP 3846966A1 EP 19762134 A EP19762134 A EP 19762134A EP 3846966 A1 EP3846966 A1 EP 3846966A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support element
- abrasive
- grinding
- grinding device
- 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
Links
- 239000010985 leather Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 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
- 239000000428 dust Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 238000004804 winding Methods 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
- B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
-
- 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
- B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
- B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material
- B24D15/026—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material able to be stripped-off from a built-in delivery spool
Definitions
- the invention relates to a grinding device according to the preamble of claim 1 and an abrasive.
- Such grinding devices consist of a dimensionally stable support element, which can be provided as a support plate or as a grinding block, the latter when used manually.
- the abrasive is present as a flexible abrasive sheet or as an abrasive belt which is held on the support element by means of an adhesive connection, for which purpose the pairing of support element / abrasive each has appropriately designed Velcro layers.
- abrasive this is provided on the opposite side of a support from an abrasive layer consisting of an abrasive grain, which can consist of paper, foil, fabric or a combination thereof.
- the integral connection is made by gluing, the contact surface of the carrier with the support plate being equipped with a self-adhesive layer.
- the structure of the carrier for providing the Velcro or self-adhesive layer is cost-intensive, especially since such a layer has to be designed in several stages.
- they are subject to a relatively high level of wear and tear as a result of the connection being made and released.
- Holding the abrasive on the support element by means of a vacuum requires special measures with regard to air permeability and the sealing. This means that the backing pad must have openings through which air is sucked in to hold the abrasive against it.
- the disadvantage here is that the carrier is permeable, whereby grinding dust gets into the connection area with the support element, which leads to considerable problems with increasing operating time.
- US Pat. No. 3,345,785 A discloses a grinding device with the indication of a frictional connection between a flexible support element and an abrasive, the frictional connection being established between a circumferential flange of the abrasive and the support element.
- the invention is based on the object of further developing a grinding device and an abrasive of the generic type in such a way that it can be manufactured more simply and more cost-effectively and its handling becomes easier.
- the coefficient of friction between the support element and the abrasive held over its entire surface is sufficient to absorb the longitudinal and transverse forces that occur during grinding, the coefficient of friction of the pairing being between 0.2 and 0.5 according to the invention.
- the frictional force between the support plate and the abrasive being generated by pressing when the grinding device, ie the support element and the abrasive, is applied to the surface surface to be machined is pressed.
- This frictional force is preferably between 0.5 to 2.0 N / mm 2 .
- the abrasive is designed to be flexible.
- the abrasive which can be available as a single sheet or as an abrasive belt, consists of a backing and an abrasive layer held thereon. While the carrier, which forms a contact layer to the support element, is constructed in several stages according to the prior art, in particular prepared for a Velcro or adhesive connection, the carrier according to the invention is only produced in one layer from a suitable plastic, which is both elastic and flexible should.
- Polymers, elastomers or leather are particularly suitable for this, the thickness of the backing being between 0.7 and 4 mm.
- the flexible and elastic properties of the carrier make it possible to grind both flat and curved surfaces, the latter being convex or concave.
- the frictional connection between the support element and the abrasive is particularly advantageous when the abrasive is in the form of a web. Since the sanding belt is precisely aligned and guided in the connection area with the support element, problem-free positioning between the support element and the sanding sheet is ensured.
- the sanding belt is raised for the further clocking of the support element or the sanding belt slides over the support plate if the lifting or tearing force with which the sanding belt is released from the support element is greater than the frictional force between the support element and the sanding belt.
- the grinding itself is, as mentioned, point-shaped or flat, with orbital, rotating or vibrating movements.
- the carrier carrying the abrasive can be made of paper, while the contact surface lying against the support element is made of an elastomeric, rubber-like or leather material.
- the surface of the carrier assigned to the support element is lightly structured from a film of the carrier's smooth surface and is likewise formed from an elastomeric, rubber-like or leather material.
- the rough surface of the carrier formed from a fabric is lightly structured on the side held by friction on the support element and, if necessary, formed from a foam. Additional anti-slip agents are not absolutely necessary for the pairings mentioned.
- the surfaces can be dry, moistened or wet, with a corresponding influence on the friction pairs.
- the single figure shows a schematic side view of a grinding device according to the invention.
- the figure shows a grinding device 1 for removing a defect, in a particularly finished surface of an object, not shown, by grinding.
- This grinding device 1 has a robot arm 2 and a support element 3 held thereon in the form of a support plate which can be moved to the surface for grinding the defect, for example orbital, vibrating or rotating.
- an abrasive 5 in the example in the form of an abrasive belt, is in frictional contact with the support element 3, the rear side of the support element 3, so to speak, resting against the support element 3
- Abrasive 5 is designed as a carrier, which on the other hand carries an abrasive grain that contacts the surface of the object.
- the abrasive 5 is held in a dispenser in the form of a cassette 4 and is wound in a roll 6 on an unwinding shaft 7 and is wound onto a winding shaft 8, preferably in cycles, in accordance with the grinding process.
- the frictional engagement between the support element 3 and the abrasive 5 is released by lifting the support element 3, so that the abrasive 5 can be continued without hindrance.
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018121625.4A DE102018121625A1 (de) | 2018-09-05 | 2018-09-05 | Schleifeinrichtung |
PCT/EP2019/073205 WO2020048886A1 (fr) | 2018-09-05 | 2019-08-30 | Dispositif de ponçage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3846966A1 true EP3846966A1 (fr) | 2021-07-14 |
EP3846966B1 EP3846966B1 (fr) | 2023-10-18 |
Family
ID=67810609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19762134.5A Active EP3846966B1 (fr) | 2018-09-05 | 2019-08-30 | Dispositif de ponçage |
Country Status (12)
Country | Link |
---|---|
US (1) | US20210316419A1 (fr) |
EP (1) | EP3846966B1 (fr) |
JP (1) | JP2021534993A (fr) |
KR (1) | KR20210042990A (fr) |
CN (1) | CN112752631B (fr) |
BR (1) | BR112021000891A2 (fr) |
CA (1) | CA3107230A1 (fr) |
DE (1) | DE102018121625A1 (fr) |
ES (1) | ES2968470T3 (fr) |
MX (1) | MX2021002576A (fr) |
WO (1) | WO2020048886A1 (fr) |
ZA (1) | ZA202100300B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017108191A1 (de) * | 2017-04-18 | 2018-10-18 | Rud. Starcke Gmbh & Co. Kg | Verfahren zum partiellen Schleifen einer Oberfläche sowie Schleifeinrichtung |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2258733A (en) * | 1940-08-30 | 1941-10-14 | Gen Motors Corp | Sanding machine |
US2309819A (en) * | 1941-04-18 | 1943-02-02 | Carborundum Co | Art of grinding and polishing glass and apparatus therefor |
US3345785A (en) * | 1964-12-07 | 1967-10-10 | Warren N Riker | Sanding disc assembly |
US3498010A (en) * | 1965-06-03 | 1970-03-03 | Nobuyoshi Hagihara | Flexible grinding disc |
DE1973875U (de) * | 1965-12-31 | 1967-11-30 | Franz Josefy | Bandschleifmaschine. |
US4010583A (en) * | 1974-05-28 | 1977-03-08 | Engelhard Minerals & Chemicals Corporation | Fixed-super-abrasive tool and method of manufacture thereof |
DE3642086A1 (de) * | 1986-12-10 | 1988-06-23 | Fraunhofer Ges Forschung | Schleifvorrichtung |
US5109638A (en) * | 1989-03-13 | 1992-05-05 | Microsurface Finishing Products, Inc. | Abrasive sheet material with non-slip backing |
EP0619165A1 (fr) * | 1993-04-07 | 1994-10-12 | Minnesota Mining And Manufacturing Company | Article abrasif |
DE19632809C2 (de) * | 1996-08-14 | 2002-06-20 | Infineon Technologies Ag | Gerät zum chemisch-mechanischen Polieren von Wafern |
FR2758285B3 (fr) * | 1997-01-13 | 1998-12-04 | Struers As | Procede de fixation d'un agent abrasif ou de polissage, sous forme de feuille, sur un support magnetique |
US5967882A (en) * | 1997-03-06 | 1999-10-19 | Keltech Engineering | Lapping apparatus and process with two opposed lapping platens |
HU219837B (hu) * | 1997-10-29 | 2001-08-28 | József Mandzsú | Gyorskapcsolóelemmel rendelkező, megmunkáló felülettel ellátott csiszolólap és gyorskapcsoló elemrészekből álló gyorskapcsolórendszer |
US6634929B1 (en) * | 1999-04-23 | 2003-10-21 | 3M Innovative Properties Company | Method for grinding glass |
US6685539B1 (en) * | 1999-08-24 | 2004-02-03 | Ricoh Company, Ltd. | Processing tool, method of producing tool, processing method and processing apparatus |
US20010031612A1 (en) * | 2000-01-06 | 2001-10-18 | Scott Diane B. | Retention of a polishing pad on a platen |
US7520800B2 (en) * | 2003-04-16 | 2009-04-21 | Duescher Wayne O | Raised island abrasive, lapping apparatus and method of use |
CN101808781B (zh) * | 2007-08-03 | 2014-10-22 | 圣戈班磨料磨具有限公司 | 具有助黏附层的磨料物品 |
DE102010001769A1 (de) * | 2010-02-10 | 2011-08-11 | JÖST GmbH, 69483 | Schleif- und Reinigungskörper |
EP2776210B1 (fr) * | 2011-11-09 | 2017-01-18 | 3M Innovative Properties Company | Roue de ponçage composite |
TWI548481B (zh) * | 2014-11-17 | 2016-09-11 | 三芳化學工業股份有限公司 | 拋光墊及其製造方法 |
DE102017108191A1 (de) * | 2017-04-18 | 2018-10-18 | Rud. Starcke Gmbh & Co. Kg | Verfahren zum partiellen Schleifen einer Oberfläche sowie Schleifeinrichtung |
-
2018
- 2018-09-05 DE DE102018121625.4A patent/DE102018121625A1/de active Pending
-
2019
- 2019-08-30 CN CN201980057639.4A patent/CN112752631B/zh active Active
- 2019-08-30 EP EP19762134.5A patent/EP3846966B1/fr active Active
- 2019-08-30 CA CA3107230A patent/CA3107230A1/fr active Pending
- 2019-08-30 ES ES19762134T patent/ES2968470T3/es active Active
- 2019-08-30 BR BR112021000891-8A patent/BR112021000891A2/pt unknown
- 2019-08-30 US US17/273,529 patent/US20210316419A1/en active Pending
- 2019-08-30 KR KR1020217009243A patent/KR20210042990A/ko unknown
- 2019-08-30 JP JP2021512536A patent/JP2021534993A/ja active Pending
- 2019-08-30 WO PCT/EP2019/073205 patent/WO2020048886A1/fr active Application Filing
- 2019-08-30 MX MX2021002576A patent/MX2021002576A/es unknown
-
2021
- 2021-01-15 ZA ZA2021/00300A patent/ZA202100300B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN112752631A (zh) | 2021-05-04 |
ZA202100300B (en) | 2022-05-25 |
ES2968470T3 (es) | 2024-05-09 |
CA3107230A1 (fr) | 2020-03-12 |
CN112752631B (zh) | 2023-02-17 |
DE102018121625A1 (de) | 2020-03-05 |
KR20210042990A (ko) | 2021-04-20 |
BR112021000891A2 (pt) | 2021-04-13 |
MX2021002576A (es) | 2021-05-12 |
EP3846966B1 (fr) | 2023-10-18 |
WO2020048886A1 (fr) | 2020-03-12 |
JP2021534993A (ja) | 2021-12-16 |
US20210316419A1 (en) | 2021-10-14 |
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