EP0235337A1 - Polierscheibe zur Aufnahme von Polierzusammensetzungen - Google Patents

Polierscheibe zur Aufnahme von Polierzusammensetzungen Download PDF

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Publication number
EP0235337A1
EP0235337A1 EP86102875A EP86102875A EP0235337A1 EP 0235337 A1 EP0235337 A1 EP 0235337A1 EP 86102875 A EP86102875 A EP 86102875A EP 86102875 A EP86102875 A EP 86102875A EP 0235337 A1 EP0235337 A1 EP 0235337A1
Authority
EP
European Patent Office
Prior art keywords
abrasive
buffer wheel
buffer
wheel
paste
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Withdrawn
Application number
EP86102875A
Other languages
English (en)
French (fr)
Inventor
Ermes Nadalin
Andrea Bozino
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.)
ABRASIVI HERMES S.R.L.
Original Assignee
ABRASIVI HERMES Srl
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 ABRASIVI HERMES Srl filed Critical ABRASIVI HERMES Srl
Priority to EP86102875A priority Critical patent/EP0235337A1/de
Publication of EP0235337A1 publication Critical patent/EP0235337A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex

Definitions

  • This invention relates to a buffer wheel for supporting abrasive compounds.
  • Buffer wheels of this kind have been known and employed in the surface treatment of workpieces, e.g. for polishing, buffing, deglazing, roughing, etc.
  • metal sectional members such as section bars of aluminum or light alloys, scissors, table utensils, motor vehicle hub caps, cooking utensils, stainless steel articles and articles of polyester, plexiglass, or other synthetic materials, which operations are usually carried out either manually or on automatic equipment.
  • an abrasive compound is applied to the buffer wheel, which wheel comprises a flexible supporting body of aerated configuration, or formed of a brush, disks laid side-by-side, a strip wound around itself, brush-like, and so on.
  • the manually applied paste or compound will be selected to provide a requisite action depending, for example, on the grain size of the abrasive matter, or on the properties of the greasy base paste.
  • Wheels are formed conventionally from cloths of cotton, sisal, or a mixed type, their object being that of providing support for the abrasive compound. These materials are required to be flexible in order for the wheel to keep true against the varying profiles or contours of workpieces.
  • Known buffer wheels have several drawbacks and disadvantages, mainly as listed herein below: cotton disk wheels are generally made up of unused textile materials, and are accordingly inherently expensive; the use of waste textile materials, with pieces held together by quilting, is both time- and labor-consuming; with sisal disk wheels, the manufacturing process is also a costly one, because the wheel is formed by sewing together triangular sisal segments which have to be pre-cut; this is a requirement imposed by the need to have along the outer periphery of the disks a desired arrangement of the weft loops of the sisal cloth, or of the corners thereof; cotton wheels have low absorbing and soaking capabilities, thereby a substantial part of the abrasive paste applied in use is not used, or goes wasted, because it cannot be properly held on the wheel; this limited ability to retain the abrasive paste is even more evident with sisal wheels; owing to the limited paste-retention ability of conventional wheels, the rate of consumption of the abrasive compound is high; the above-cited in
  • the material forming the abrasive material-supporting flexible body is a composite material comprising at least one backing reinforcement associated with at least one layer of a material having high properties of absorbing and retaining viscous fluids and greasy substances.
  • the reinforcement that mahes up the flexible body for supporting the abrasive material may have any desired compositions, including woven cloth, non-woven cloth, needled cloth, a film, or the like.
  • Viable materials for the construction of the reinforcement are both naturally occuring materials, such as cotton, sisal, flax, hemp, coco, jute, manitoba, polynosic fibers, either alone or in any combinations, and synthetic materials, such as nylon, dralon, kevlar, carbon fiber, glass wool, etc.
  • the preferred material with high properties of absorbing and retaining viscous fluids and greasy substances is polyurethane, either in its standard or slightly foamed forms.
  • the buffer wheel of this invention affords a number of advantages. Firstly, the material can be supplied already in bolts, thereby the individual wheel disks can be merely punched off.
  • the material proposed can absorb and retain the abrasive material support paste in an optimum way, thus drastically reducing the rate of consumption of the same and preventing effectively contamination of the working area. Also drastically reduced are the working pressure and power input requirements, while avoiding the polishing faults consisting of the above-cited marks and discolorations.
  • the faculty is afforded of providing pre-impregnated wheels, thus doing away with the need to subsequently apply the abrasive paste manually during the processing operations. If manual application is resorted to, however, then the application frequency would be far less pressing and only require small amounts of abrasive paste, which is at once absorbed into the wheel material and fully utilized with no waste.
  • Still another advantage is the possibility of first manufacturing the body of the wheel or tool of a textile material and then impregnating it with polyurethane or the like. This specially advantageous with wheels of substantial thickness.
  • An additional advantage of the invention is that an adhesive material may be applied to the body of the wheel or tool, such as by spraying, injection, or dipping, on which the abrasive material may be made to adhere where required.
  • the wheel is advantageously provided with an inner chamber for accommodating abrasive paste therein.
  • wheel disk 1 is a single wheel disk of a material according to the invention, as provided for making up buffer wheels or tools having any desired configurations, e.g. as shown in Figures 5 and 6.
  • wheel disks would obviously have any comparable configurations with conventional ones formed from either cotton or sisal, or being of mixed construction.
  • the material proposed instead of being a mere cloth or substantially mesh-like construction, has at least one supporting or load-bearing reinforcement or core 2, wherewith there is associated at least one layer 3 of a material having enhanced properties of retention of dense flowable fluids, highly viscous fluids, and greasy substances.
  • the proposed material has a composite structure.
  • the same may have any configuration, and may be laid to form a central core, or alternatively, a side-mounted backing plate, or any other desired arrangement with any number of layers, e.g. on either sides.
  • the yarn material and the dimensions of the warp and weft yarns in the reinforcement may be selected as appropriate. Expendiently, such yarns would be of either naturally occurring fibers, such as cotton, flax, hemp, coco, jute, manitoba, ennecken, polynosic fibers, and the like, to be worked as desired, e.g.
  • the highly absorptive material may consists preferably of polyurethane, in either its standard form or a slightly foamed form. Also within the scope of this invention is the use of any materials having comparable characteristics and behaviors.
  • the proposed composite material is advantageous strictlyly easy to supply in bolts, which facilitates the manufacture of the individual disks for composing the composite buffer wheels or tools having any of the currently accepted configurations.
  • the proposed material advantageously lends itself to being pre-impregnated with abrasive paste, thereby it becomes possible, for the first time, to provide pre-impregnated buffer wheels, that is, buffer wheels ready for use.
  • Figure 6 shows an embodiment with an inner charge of abrasive paste.
  • a general view of the buffer wheel is provided where 5 denotes a tubular core, 6 two end flanges, and 7 an interspace filled with abrasive paste.
  • This general embodiment may be implemented using any appropriate expedients and dimensions.
  • the invention also envisages a first modified embodiment wherein a reinforcement body or core is provided for the buffer wheel or tool, which has a substantial thickness dimension and is then impregnated with the highly absorptive material, e.g. polyurethane.
  • a reinforcement body or core is provided for the buffer wheel or tool, which has a substantial thickness dimension and is then impregnated with the highly absorptive material, e.g. polyurethane.
  • a second variation of the invention provides for the use of an adhesive material, instead of the conventional greasy paste, as a carrier for the abrasive material or powder.
  • the adhesive material may be applied to the buffer wheel or tool, formed of the material proposed herein, by spraying, injecting, or dipping.
  • this buffer wheel or tool made of the proposed material effectively achieves its objects and the advantages mentioned hereinabove.
  • the rate of consumption of abrasive paste, as well as the power input requirements are decreased, while keeping the working area healthy, the buffer wheel may be supplied in a pre-impregnated or charged form, the manufacture of the buffer wheels is simplified, and so on.
  • the selection of the materials with enhanced properties of absorption and retention for viscous fluids and greasy substances may be from a broad range, and the individual components for such materials selected at will contingent on individual requirements, without depart­ing from the invention scope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP86102875A 1986-03-05 1986-03-05 Polierscheibe zur Aufnahme von Polierzusammensetzungen Withdrawn EP0235337A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86102875A EP0235337A1 (de) 1986-03-05 1986-03-05 Polierscheibe zur Aufnahme von Polierzusammensetzungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86102875A EP0235337A1 (de) 1986-03-05 1986-03-05 Polierscheibe zur Aufnahme von Polierzusammensetzungen

Publications (1)

Publication Number Publication Date
EP0235337A1 true EP0235337A1 (de) 1987-09-09

Family

ID=8194942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102875A Withdrawn EP0235337A1 (de) 1986-03-05 1986-03-05 Polierscheibe zur Aufnahme von Polierzusammensetzungen

Country Status (1)

Country Link
EP (1) EP0235337A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238518C1 (de) * 1992-11-14 1994-02-17 Daimler Benz Ag Einrichtung zum automatisierten, robotergeführten Polieren von Kraftfahrzeugen
JP2011172711A (ja) * 2010-02-24 2011-09-08 Toho Yogyo Kk 繊維質円筒体の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309819A (en) * 1941-04-18 1943-02-02 Carborundum Co Art of grinding and polishing glass and apparatus therefor
US2807124A (en) * 1954-01-21 1957-09-24 Tachon Spencer Francis Felt roller for the processing and finishing of bright sheet material
US2994898A (en) * 1958-04-28 1961-08-08 Osborn Mfg Co Self-cooling rotary brush
DE1427586A1 (de) * 1959-08-18 1968-12-12 Osborn Mfg Co Schleif- und Schlichtwerkzeug
DE2218295A1 (de) * 1972-04-15 1973-10-25 Picard Friedr Aug Kg Polierkoerper, insbesondere polierscheibe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309819A (en) * 1941-04-18 1943-02-02 Carborundum Co Art of grinding and polishing glass and apparatus therefor
US2807124A (en) * 1954-01-21 1957-09-24 Tachon Spencer Francis Felt roller for the processing and finishing of bright sheet material
US2994898A (en) * 1958-04-28 1961-08-08 Osborn Mfg Co Self-cooling rotary brush
DE1427586A1 (de) * 1959-08-18 1968-12-12 Osborn Mfg Co Schleif- und Schlichtwerkzeug
DE2218295A1 (de) * 1972-04-15 1973-10-25 Picard Friedr Aug Kg Polierkoerper, insbesondere polierscheibe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238518C1 (de) * 1992-11-14 1994-02-17 Daimler Benz Ag Einrichtung zum automatisierten, robotergeführten Polieren von Kraftfahrzeugen
JP2011172711A (ja) * 2010-02-24 2011-09-08 Toho Yogyo Kk 繊維質円筒体の製造方法

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19880224

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ABRASIVI HERMES S.R.L.

17Q First examination report despatched

Effective date: 19890227

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18D Application deemed to be withdrawn

Effective date: 19890711

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NADALIN, ERMES

Inventor name: BOZINO, ANDREA