EP3321033B1 - Schleifwerkzeug - Google Patents

Schleifwerkzeug Download PDF

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Publication number
EP3321033B1
EP3321033B1 EP16198776.3A EP16198776A EP3321033B1 EP 3321033 B1 EP3321033 B1 EP 3321033B1 EP 16198776 A EP16198776 A EP 16198776A EP 3321033 B1 EP3321033 B1 EP 3321033B1
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EP
European Patent Office
Prior art keywords
layer
elastic
substrate
abrasive tool
abrasive
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
EP16198776.3A
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English (en)
French (fr)
Other versions
EP3321033A1 (de
Inventor
Fang HONG
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.)
Dong Guan Golden Sun Abrasives Co Ltd
Original Assignee
Dong Guan Golden Sun Abrasives Co Ltd
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Publication date
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Priority to EP16198776.3A priority Critical patent/EP3321033B1/de
Publication of EP3321033A1 publication Critical patent/EP3321033A1/de
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    • 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
    • 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
    • B24D11/001—Manufacture of flexible abrasive materials
    • 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
    • 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
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0072—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing

Definitions

  • the invention relates to an abrasive tool according to claim 1 as well as a method of manufacturing an abrasive tool according to claim 5.
  • Abrasive tools are known from prior art which typically specialize to have one specific function, mainly an abrasive function. However, none of these abrasive tools combine different advantageous functions such as superior tension, elasticity and softness while at the same time being self-lubricating.
  • Prior art document US 2007/0066185 A1 discloses a conformable abrasive article comprising an abrasive member affixed to an elastic member, the elastic member being further affixed to a first major surface of a backing, wherein a deformable material contacting only a central portion of the first major surface is enclosed by the elastic member and the backing.
  • Document CN 205053165 U is the basis for the preamble of claim 1 and discloses a six-surface manicure block, including a foam fixing base of a cubic shape, at least one surface of the foam fixing base has an EVA polishing layer, and at least one surface has a thin film abrasive paper with a coarse grinding layer, and at least one surface has a thin film abrasive paper with a fine grinding layer.
  • an abrasive tool for polishing which has an elastic layer, said elastic layer comprising sand.
  • layer preferably means a film of an especially constant thickness.
  • elastic refers to the function that a layer is reversibly deformed under the application of external forces.
  • the elastic layer comprises a sand layer and an elastic glue layer.
  • the sand layer is attached onto the elastic glue layer at least one side.
  • the sand layer is disposed at a first end of the elastic layer.
  • the sand layer is also disposed at another side of the elastic glue layer such that the sand layer is disposed at a second end of the elastic layer.
  • the glue layer would be disposed between two sand layers.
  • the elastic layer comprising sand an improved elasticity as well as adaption to surfaces to be polished can be achieved.
  • the abrasive tool can optimally be used for curvy surfaces since, due to the elasticity, a close fit to the surface is always ensured.
  • the elastic layer is adapted to provide the abrasive tool with a toughness, abrasion resistance, cold resistance, environmental protection and non-toxicity.
  • the abrasive tool comprises a substrate, wherein the elastic layer is bonded to the substrate.
  • the elastic layer is advantageously compounded to the substrate.
  • the substrate itself is also configured to be elastic.
  • the elastic layer is bonded with the substrate by an adhesive bonding process.
  • the elastic layer is bonded to the substrate at a first end of the substrate.
  • the elastic layer is bonded to the substrate by means of a first adhesive layer.
  • the first adhesive layer advantageously has a thickness of 0,01 mm to 0,1 mm, especially preferred 0,025 mm to 0,075 mm, further preferred 0,04 mm to 0,06 mm. Optimally, the thickness is 0,05 mm.
  • the substrate is formed by a foamed polymer. Therefore, the substrate internally comprises a plurality, preferably thousands, of fines pores. As a result, the substrate has a superior absorption function. In other words, the substrate has an increased absorption capacity. This means it can absorb a large amount of liquid material, preferably a lubricant and/or a coolant. At the same time the foamed polymer provides the substrate with a slow release function. Thus, the substrate can release the absorbed liquid material under the action of external forces, e.g. pressing onto a surface to be polished, in a slow and controllable way.
  • external forces e.g. pressing onto a surface to be polished
  • the substrate can absorb and release a lubricant and/or a coolant, the substrate has a cooling and/or lubricating function during polishing and abrading. Additionally, the substrate can have an anti-blocking function. This results in a novel surface quality as a result of the polishing process.
  • the abrasive tool comprises an abrasive layer which provides the abrasive tool with polishing and/or abrading and/or cutting function.
  • the abrasive layer can possess antistatic function.
  • the abrasive layer serves the treatment of surfaces.
  • the abrasive layer is the layer of the abrasive tool which is to be brought in contact with the surface to be polished.
  • the abrasive layer has a lubricating function so that scratches on the surface are reduced.
  • the abrasive layer has a very good water resistance. All of the functions of the abrasive layer are even improved under wet polishing or abrading conditions.
  • the abrasive layer has a lubricant component, an adhesive component and an antistatic component.
  • the ratio between the lubricant component and the adhesive component is between 20:1 and 20:5, most preferred 20:3, while advantageously the ratio between adhesive component and antistatic component is between 5:1 and 5:4, most preferred 5:2,7.
  • the ratio between lubricating component, adhesive component and antistatic component is thus 100:15:8.
  • the abrasive tool can comprise a touch fastener layer.
  • touch fastener layer refers to a hook and loop fastener layer, in particular a velcro layer.
  • the touch fastener layer is configured as a touch fastener backing cloth, preferably a hook and loop fastener backing cloth, most preferred a velcro backing cloth.
  • the touch fastener layer is preferably bonded to the substrate by means of a second adhesive layer.
  • the touch fastener layer is advantageously bonded to a second end of the substrate, wherein the second end is opposite of the first end.
  • the second adhesive layer advantageously has a thickness of 0,01 mm to 0,1 mm, especially preferred 0,025 mm to 0,075 mm, further preferred 0,04 mm to 0,06 mm. Optimally, the thickness is 0,05 mm. In particular, the second adhesive layer has the same thickness as the first adhesive layer.
  • the second and/or the first adhesive layer are preferably configured as an elastic glue layer which is not liquid.
  • the adhesive forming the adhesive layer can comprise resin, a curing agent and a leveling agent, wherein the ratio between resin and curing agent is preferred between 20:1 and 20:3, especially 20:2.
  • the ratio between curing agent and levelling agent is preferably between 5:0,01 and 5:1, especially preferred 5:0,1. So most preferred the ratio between resin, curing agent and levelling agent is 100:10:0,2.
  • first and/or second adhesive layer and/or the touch fastener layer are configured elastic so that the entire abrasive tool can be elastic and thus provides an optimal flexibility for polishing.
  • the abrasive tool can be configured in various shapes, such as e.g. a disc shape or a square shape.
  • the abrasive tool is touch fastener backed, preferably velcro backed, and punched to have a desired shape.
  • the abrasive tool is adapted to be used in a dry and/or a wet state.
  • the abrasive tool is therefore adapted to be used as a dual-purpose tool.
  • the abrasive tool is preferably adapted to be used for polishing components in automobile manufacturing and/or electronics, computer and/or communication components.
  • the abrasive tool is further adapted to be used for repair, especially paint repair, e.g. of automobile components.
  • abrasive tool is adapted to be used for fine abrading and polishing, preferably of irregular and/or curved surfaces.
  • the abrasive tool Due to its special configuration, especially by combining the elastic layer and the substrate comprising a foamed polymer, the abrasive tool has the functions of superior tension, elasticity, superior softness, self-lubricating and anti-blocking. Those advantages of the abrasive tool are even more superior in a wet state of the tool. Overall, a novel precision and polishing quality, i.e. surface quality after polishing, is achieved by means of the abrasive tool.
  • the invention in another aspect, relates to a method of manufacturing an abrasive tool, in particular an abrasive tool as described above.
  • the method comprises the step of bonding a substrate with an elastic layer using an adhesive bonding process.
  • a substrate made from a foamed polymer and an elastic layer comprising sand Due to the smoothness and softness of the elastic sand layer it is easily deformed and corrugated when being bonded with the substrate.
  • the substrate has very good adsorption capacity, so that an adhesive easily permeates the substrate when a liquid adhesive is used for bonding, resulting in insecure bonding, embrittlement and a significant loss of adsorption and slow release properties of the substrate.
  • the invention suggests using an adhesive bonding process which comprises the step of producing an elastic glue layer from an adhesive.
  • the glue layer has the advantages that it is elastic, but not liquid so that the above difficulties do not arise.
  • the adhesive is produced into a glue layer which has a thickness of 0,01 mm to 0,1 mm, especially preferred 0,025 mm to 0,075 mm, further preferred 0,04 mm to 0,06 mm. Optimally, the thickness is 0,05 mm.
  • the glue layer is configured as the first adhesive layer of the above described abrasive tool.
  • the method further comprises the step of hot pressing.
  • hot pressing By means of hot pressing the elastic layer and the substrate are bonded by means of the elastic glue layer.
  • the temperature applied during hot pressing is preferably between 50 °C and 100 °C, preferably between 60 °C and 90 °C, most preferred between 70 °C and 80 °C.
  • the method comprises the step of bonding the substrate with a touch fastener layer using an adhesive bonding process which preferably comprises the same steps as for bonding the elastic layer and the substrate.
  • the glue layer used for this step is configured as the second adhesive layer of the above described abrasive tool.
  • the method further comprises the step of manufacturing a substrate from a foamed polymer material.
  • the method comprises the step of manufacturing the elastic layer comprising an elastic glue layer and a sand layer by applying a sand layer onto an elastic glue layer, which could be produced as explained above by means of an adhesive.
  • the adhesive used in the adhesive bonding process is based on resin.
  • the adhesive especially comprises resin, a curing agent and a leveling agent as components.
  • the ratio between resin and curing agent is preferred between 20:1 and 20:3, especially 20:2.
  • the ratio between curing agent and levelling agent is preferably between 5:0,01 and 5:1, especially preferred 5:0,1. So most preferred the ratio between resin, curing agent and levelling agent is 100:10:0,2.
  • the method can further comprise the step of applying an abrasive layer onto the elastic layer such that the abrasive layer substantially covers the elastic layer when the abrasive tool is in use.
  • the method can further comprise touch fastener backing, preferably velcro backing, and especially punching the abrasive tool for it to have a desired shape.
  • figure 1 shows in schematic representation a sectional view of an abrasive tool.
  • Figure 1 shows a sectional view of an abrasive tool (100) along the thickness direction (18) so that all the different layers of the abrasive tool (100) can be seen.
  • the abrasive tool (100) comprises an abrasive layer (10) on one side and a touch fastener layer (17) on the other side.
  • the touch fastener layer (17) is configured as a touch fastener backing cloth (17a).
  • the abrasive tool (100) comprises an elastic layer (11) onto which the abrasive layer (10) is applied.
  • the elastic layer (11) comprises a sand layer (13) and an elastic glue layer (12).
  • the sand layer (13) is disposed at a first end (11a) of the elastic layer (11) which faces the abrasive layer (10). Furthermore, there is a sand layer (13) disposed at the second end (11b) of the elastic layer (11) so that the glue layer (12) is disposed between the sand layers (13).
  • the abrasive layer (10) is configured such on the elastic layer (11) or rather the sand layer (13) on the first end (11a) of the elastic layer (11) that it substantially covers the sand layer (13) when the abrasive tool is in use.
  • the elastic layer (11) is bonded to a substrate (15) of the abrasive tool (100) by means of a first adhesive layer (14).
  • the substrate (15) is configured as a foamed polymer (15c).
  • the substrate (15) comprises a first end (15a) facing the first adhesive layer (14) and the elastic layer (11) and a second end (15b) facing the touch fastener layer (17).
  • On its second end (15b) the substrate (15) is bonded to a touch fastener layer (17) by means of a second adhesive layer (16).
  • the touch fastener layer (17) is configured as a touch fastener backing cloth (17a).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (8)

  1. Schleifwerkzeug (100) zum Polieren,
    wobei das Schleifwerkzeug (100) eine Schleifschicht (10) und eine elastische Schicht (11) umfasst, wobei die elastische Schicht (11) mittels eines Klebstoffs (14) mit einem Substrat (15) an einem ersten Ende (15a) des Substrats (15) verbunden ist,
    dadurch gekennzeichnet, dass
    die elastische Schicht (11) eine elastische Klebstoffschicht (12) und wenigstens eine Sandschicht (13) umfasst,
    wobei die elastische Klebstoffschicht (12) aus einem Klebstoff (14, 16) gebildet ist und die elastische Klebstoffschicht (12) nicht flüssig ist,
    wobei die wenigstens eine Sandschicht (13) verwendet wird, um eine verbesserte Elastizität sowie eine bessere Anpassung an zu polierende Oberflächen zu erreichen
  2. Schleifwerkzeug (100) gemäß Anspruch 1,
    wobei die elastische Schicht (11) mittels einer ersten Klebstoffschicht (14) mit dem Substrat (15) verbunden ist.
  3. Schleifwerkzeug (100) gemäß Anspruch 1 oder 2,
    wobei das Substrat (15) durch ein geschäumtes Polymer (15c) gebildet wird.
  4. Schleifwerkzeug (100) gemäß einem früheren Anspruch,
    wobei das Schleifwerkzeug (100) eine Klettverbindungsschicht (17) umfasst.
  5. Verfahren zur Herstellung eines Schleifwerkzeugs (100) gemäß einem der Ansprüche 1 bis 4,
    umfassend den Schritt des Verbindens eines Substrats (15) mit einer elastischen Schicht (11) unter Verwendung eines Klebeverbindungsverfahrens, wobei das Klebeverbindungsverfahren einen Schritt des Bildens einer elastischen Klebstoffschicht (12) aus einem Klebstoff (14, 16) und einen Schritt des Heißpressens umfasst.
  6. Verfahren gemäß Anspruch 5,
    wobei das Verfahren den Schritt des Verbindens des Substrats (15) mit einer Klettverbindungsschicht (17) unter Verwendung eines Klebeverbindungsverfahrens umfasst.
  7. Verfahren gemäß Anspruch 6,
    wobei der Klebstoff (14, 16), der in dem Klebeverbindungsverfahren verwendet wird, auf Harz basiert.
  8. Verfahren gemäß einem der Ansprüche 5 bis 7,
    wobei das Verfahren einen Schritt des Aufbringens einer Schleifschicht (10) auf die elastische Schicht (11) umfasst, so dass die Schleifschicht (10) die elastische Schicht (11) im Wesentlichen bedeckt, wenn das Schleifwerkzeug (100) verwendet wird.
EP16198776.3A 2016-11-15 2016-11-15 Schleifwerkzeug Active EP3321033B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16198776.3A EP3321033B1 (de) 2016-11-15 2016-11-15 Schleifwerkzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16198776.3A EP3321033B1 (de) 2016-11-15 2016-11-15 Schleifwerkzeug

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Publication Number Publication Date
EP3321033A1 EP3321033A1 (de) 2018-05-16
EP3321033B1 true EP3321033B1 (de) 2021-06-30

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EP16198776.3A Active EP3321033B1 (de) 2016-11-15 2016-11-15 Schleifwerkzeug

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110695864B (zh) * 2019-10-14 2021-04-20 淄博理研泰山涂附磨具有限公司 一种涂附磨具的静电植砂方法及其应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA381434A (en) * 1939-05-16 Ogden Guth Durward Abrasive sheet
EP0921906A1 (de) * 1996-08-08 1999-06-16 Minnesota Mining And Manufacturing Company Schleifvorrichtung zum modifizieren von halbleiterwafer
CN205053165U (zh) * 2015-09-11 2016-03-02 蔡炬容 一种六面美甲块

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT226758Z2 (it) * 1992-07-09 1997-07-01 Norton Utensile abrasivo quale disco striscia e simili per una macchina per la carteggiatura e la levigatura
US20070066186A1 (en) * 2005-09-22 2007-03-22 3M Innovative Properties Company Flexible abrasive article and methods of making and using the same
US7618306B2 (en) * 2005-09-22 2009-11-17 3M Innovative Properties Company Conformable abrasive articles and methods of making and using the same
ES2861973T3 (es) * 2014-06-04 2021-10-06 Paolo Baratti Herramienta abrasiva para el mecanizado de superficies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA381434A (en) * 1939-05-16 Ogden Guth Durward Abrasive sheet
EP0921906A1 (de) * 1996-08-08 1999-06-16 Minnesota Mining And Manufacturing Company Schleifvorrichtung zum modifizieren von halbleiterwafer
CN205053165U (zh) * 2015-09-11 2016-03-02 蔡炬容 一种六面美甲块

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Publication number Publication date
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