US3609925A - Grinding disc - Google Patents

Grinding disc Download PDF

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Publication number
US3609925A
US3609925A US843332A US3609925DA US3609925A US 3609925 A US3609925 A US 3609925A US 843332 A US843332 A US 843332A US 3609925D A US3609925D A US 3609925DA US 3609925 A US3609925 A US 3609925A
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US
United States
Prior art keywords
disc
channels
grinding
grinding disc
radial
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.)
Expired - Lifetime
Application number
US843332A
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English (en)
Inventor
Manuel Comella-Riera
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.)
TELAS Y PAPELES ABRASIVOS
Original Assignee
TELAS Y PAPELES ABRASIVOS
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 TELAS Y PAPELES ABRASIVOS filed Critical TELAS Y PAPELES ABRASIVOS
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Publication of US3609925A publication Critical patent/US3609925A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/18—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor with cooling provisions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions

Definitions

  • the active surfaces of grinding discs have generally been divided into sections by intersecting channels, each channel being uninterrupted.
  • This sort of arrangement makes it difiicult for the cooling liquid to distribute itself evenly over the different areas of the disc, and also limits the grinding power.
  • the objects of the present invention is to solve these problems by providing a grinding disc made up of superposed layers of suitable granular substances conveniently held together by resins. Because of this arrangement of the abrasive material in superposed layers, the abrasive grains are distributed more uniformly in each of the layers, which substantially increases the grinding effect of the grains and the life of the grinding disc.
  • this grinding disc The main feature of this grinding disc is that the abrasive material is cut by uniformly spaced radial channels and by channels transverse to these. This feature improves the properties of the disc, because all the channels together form a cooling network which allows air currents as well as the cooling liquid to circulate.
  • the abrasive layer has a greater grinding capacity because it is divided into sections.
  • FIG. 1 shows a plan view of a grinding disc according to the present invention.
  • FIG. 2 represents an enlarged elevation view of a radial section IIII across the disc shown in FIG. 1.
  • the grinding disc that is the subject of the present invention includes a carrier 1 provided with a central opening 2 and several radial cuts 3, in a known form.
  • the purpose of the central opening and radial cuts is to insure that the disc firmly engages the driving shaft and centers on it.
  • the rest of the disc comprises a circular layer on top of the carrier, this circular layer consisting a conglomerate 4 of superposed layers of abrasive material, held together by suitable resins.
  • This conglomerate is cut by a plurality of transverse channels 6 intersecting uniformly distributed radial channels 5, in such a way that no transverse channel meets another transverse one, but they rather alternate or are staggered with respect to each other.
  • the circular layer is supported on the peripheral zone of the carrier 1.
  • the abrasive layer is relatively thick, the disc is flexible at the perimeter, because the material of the carrier 1 is preferably of a fibrous nature.
  • the fact that the grinding conglomerate is in the form of layers has the result that the grains, in contrast with those in most conventional grinding discs, remain active during the entire useful life of the disc, since the reaction of the material on which the disc acts causes the grains to be successively detached and the lower grains, which have not yet become worn, to become flush with the surface.
  • the above described configuration of channels 5 and 6 furnishes a network of conduits running over all the surface of the disc, improving the efficiency of cooling, which perceptibly decreases the Wear of the disc, thereby prolonging the effective life of the disc.
  • a grinding disc comprising an active surface composed of a plurality of layers of abrasive material, bonded to each other and to carrier by means of suitable resins, said active surface being divided into sections by a plurality of radial channels of uniform width distributed uniformly over said surface, and by a plurality of transverse channels, each said transverse channel connecting two adjacent radial channels, but no two said transverse channels meeting each other at a radial channel, said transverse and radial channels together forming a continuous multiply connected network allowing the flow of air and cooling liquid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US843332A 1968-07-20 1969-07-22 Grinding disc Expired - Lifetime US3609925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1968140683U ES140683Y (es) 1968-07-20 1968-07-20 Disco abrasivo.

Publications (1)

Publication Number Publication Date
US3609925A true US3609925A (en) 1971-10-05

Family

ID=8323632

Family Applications (1)

Application Number Title Priority Date Filing Date
US843332A Expired - Lifetime US3609925A (en) 1968-07-20 1969-07-22 Grinding disc

Country Status (5)

Country Link
US (1) US3609925A (fr)
BE (1) BE770543Q (fr)
ES (1) ES140683Y (fr)
FR (1) FR1595775A (fr)
GB (1) GB1232269A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991527A (en) * 1975-07-10 1976-11-16 Bates Abrasive Products, Inc. Coated abrasive disc
US4111666A (en) * 1975-03-07 1978-09-05 Collo Gmbh Method of making cleaning, scouring and/or polishing pads and the improved pad produced thereby
US4202140A (en) * 1977-09-23 1980-05-13 Black & Decker Inc. Abrasive sheet
US6071185A (en) * 1997-10-16 2000-06-06 August Ruggeberg Gmbh & Co. Abrasive wheel
US6089966A (en) * 1997-11-25 2000-07-18 Arai; Hatsuyuki Surface polishing pad
US6544306B2 (en) 2000-11-24 2003-04-08 3M Innovative Properties Company Abrasive product and method of making the same
WO2018118566A1 (fr) * 2016-12-23 2018-06-28 3M Innovative Properties Company Articles abrasifs à liant polymère et leurs procédés de fabrication
USD873517S1 (en) * 2017-07-21 2020-01-21 3M Innovative Properties Company Floor scrubbing pad

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1001701A3 (fr) * 1988-05-30 1990-02-13 Diamant Boart Sa Meule a boisseau et utilisation de celle-ci pour le meulage et le polissage mecaniques du verre.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111666A (en) * 1975-03-07 1978-09-05 Collo Gmbh Method of making cleaning, scouring and/or polishing pads and the improved pad produced thereby
US3991527A (en) * 1975-07-10 1976-11-16 Bates Abrasive Products, Inc. Coated abrasive disc
US4202140A (en) * 1977-09-23 1980-05-13 Black & Decker Inc. Abrasive sheet
US6071185A (en) * 1997-10-16 2000-06-06 August Ruggeberg Gmbh & Co. Abrasive wheel
US6089966A (en) * 1997-11-25 2000-07-18 Arai; Hatsuyuki Surface polishing pad
US6544306B2 (en) 2000-11-24 2003-04-08 3M Innovative Properties Company Abrasive product and method of making the same
WO2018118566A1 (fr) * 2016-12-23 2018-06-28 3M Innovative Properties Company Articles abrasifs à liant polymère et leurs procédés de fabrication
CN110121400A (zh) * 2016-12-23 2019-08-13 3M创新有限公司 聚合物粘结磨料制品及其制备方法
CN110121400B (zh) * 2016-12-23 2022-01-18 3M创新有限公司 聚合物粘结磨料制品及其制备方法
US11623324B2 (en) 2016-12-23 2023-04-11 3M Innovative Properties Company Polymer bond abrasive articles and methods of making them
USD873517S1 (en) * 2017-07-21 2020-01-21 3M Innovative Properties Company Floor scrubbing pad

Also Published As

Publication number Publication date
BE770543Q (fr) 1971-12-01
FR1595775A (fr) 1970-06-15
ES140683U (es) 1969-01-01
GB1232269A (fr) 1971-05-19
ES140683Y (es) 1969-07-16

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