WO2005039820A1 - Dispositif et appareil d'usinage de pierres dures et similaires - Google Patents

Dispositif et appareil d'usinage de pierres dures et similaires Download PDF

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Publication number
WO2005039820A1
WO2005039820A1 PCT/IB2004/052208 IB2004052208W WO2005039820A1 WO 2005039820 A1 WO2005039820 A1 WO 2005039820A1 IB 2004052208 W IB2004052208 W IB 2004052208W WO 2005039820 A1 WO2005039820 A1 WO 2005039820A1
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WO
WIPO (PCT)
Prior art keywords
abrading
support
elements
working
worked
Prior art date
Application number
PCT/IB2004/052208
Other languages
English (en)
Inventor
Mauro Di Mattia
Original Assignee
Mauro Di Mattia
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 Mauro Di Mattia filed Critical Mauro Di Mattia
Publication of WO2005039820A1 publication Critical patent/WO2005039820A1/fr

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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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • 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
    • B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • 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

  • the present invention refers to a device for working hard stones and the like, and in particular to a dressing device suitable for polishing, and to an apparatus comprising said device.
  • shaping machines based on abrading tools, the latter typically consisting in diamond wheels.
  • abrading tools the latter typically consisting in diamond wheels.
  • the latter is first rough-shaped, working it with a coarse-grained grinding wheel, and then finished and optionally polished working it with one or more finer-grained grinding wheels (in sequence).
  • the final working may also envisage the use of one or more coarser-grained grinding wheels to attain a so- called 'antiquing' of the piece.
  • the present invention originates from finding that said working modes entail a drawback in that each grinding wheel, or better each grinding wheel set, is suitable for making only a single contour of predetermined dimensions and shape. Therefore, for each different shaping it is required a different grinding wheel or grinding wheel set.
  • the technical problem underlying the present invention is to provide a device for working hard stones and the like and a related apparatus allowing to overcome the drawbacks mentioned above with reference to the known art.
  • the present invention provides several relevant advantages.
  • the main advantage lies in that the device of the invention, by virtue of the elastically deformable structure of its abrading means, enables - with a single instrument - the working, and in particular the grinding or the antiquing, of contours having different shapings.
  • Other advantages, features and the operation modes of the present invention will be made apparent in the following detailed description of some embodiments thereof, given by way of a non-limiting example.
  • FIG. 1 shows a perspective view of a device for dressing shaped pieces made of hard stones and the like according to a first embodiment of the invention
  • FIG. 2 shows a perspective view schematically illustrating a first variant embodiment of the device of Figure 1
  • - Figure 2 A shows a longitudinal sectional view of the device of Figure 1, schematically illustrating a second variant embodiment thereof
  • - Figure 3 shows a schematic longitudinal sectional view of an apparatus comprising the device of Figure 2A
  • - Figures 4 A and 4B show each a side view of the apparatus of Figure 3 during the working of differently contoured pieces
  • - Figure 5 shows a side view of an apparatus for dressing shaped pieces into hard stones and the like according to a second embodiment of the invention
  • - Figure 6A and 6B show each a side view of the apparatus of Figure 5 during the working of differently contoured pieces.
  • a device for dressing shaped pieces made of hard stones like, e.g., marble and granite, or alike materials like, e.g., glass, composite materials, and so on, is generally indicated by 1. More specifically, in the present embodiment the device 1 is conceived for polishing pieces.
  • the device 1 has a main body 2, which in the present embodiment comprises a plurality of abrading bristles, each indicated by 3, radially arranged about the sidewall of a substantially cylindrical support 4.
  • the bristles 3 are arranged gathered up in groups or tufts, each indicated by 30 and implementing an abrading element.
  • the groups 30 are arranged substantially aligned along and parallel to the longitudinal axis A of the cylindrical support 4.
  • the sets 30 are arranged longitudinally and/or transversely equidistant.
  • Variant embodiments can provide that the bristles 3 be arranged solely at a limited portion of the sidewall of the support 4, to meet specific working requirements.
  • each bristle 3 comprises a working surface exhibiting a predetermined roughness, or better a predetermined granulometry.
  • the latter is selected, with known modes, according to the working to be performed and to the piece, material and contour that are to be finished.
  • the particle size distributions usually employed for piece dressing, and in particular for piece polishing range from 30 to 40 ⁇ m, from 6 to 12 ⁇ m and from 0 to 2 ⁇ m.
  • the desired abrasiveness of the bristles 3 may be attained, for example, by a suitable mechanical working or by dipping into a bath of abrading agent and optionally of gripper.
  • the bristle may also be directly made of an abrading material.
  • the bristles 3 are diamond bristles.
  • the bristles 3 may be made by using as base material, e.g., fabric, yarn, a polymeric material or other suitable materials. According to the invention, and as it will be illustrated in greater detail below with reference to the operation modes of the device 1 , the abrading bristles 3 exhibit an elastic deformability such as to conform to the conformation of pieces to be worked having substantially different shapings.
  • the bristles 3 are fixed onto the support 4 by suitable longitudinal mounting sectors 5, each bearing a predetermined number of longitudinally aligned groups 30 of bristles 3.
  • the sectors 5 are arranged circumferentially side-by-side along the sidewall of the cylindrical support 4 and blocked thereon by conventional connection means.
  • the sectors 5 could be arranged immediately adjacent the one to the other, and/or so that the respective sets 30 of bristles be closely side-by-side, or they could be spaced thereamong so that the bristles 3 be distributed in distinct longitudinal working areas.
  • the sectors 5 could be arranged so that the groups of bristles 30 are substantially equidistant in a circumferential direction.
  • the central support 4 comprises, for each bristle 3, one pair of side-by-side mounting seats, 6 and 7, respectively, consisting in through holes obtained in the sidewall of the support itself.
  • Each bristle 3 is inserted through both the seats 6 and 7 so as to arrange according to a substantially U-shaped configuration, and to be held bracket-like by the sidewall of the support 4.
  • a further variant embodiment of the device provides that in the support 4 there be obtained blind holes, each receiving a respective set of bristles which are locked therein by a means such as resin or the like.
  • the device 1 is apt to be employed in an apparatus 100 for working, and in particular for dressing, shaped pieces made of hard stones and the like.
  • the apparatus 100 comprises driving means 101, apt to give to the bristles 3 a working motion with respect to the piece to be worked.
  • a working motion is a rotary motion about an axis A coincident with or parallel to the longitudinal axis of the cylindrical support 4.
  • Said means 101 could consist, e.g., of a conventional electric motor (not depicted) with possible associated transmission organs, provided with a shaft onto which the support 4 is splined.
  • the operation modes of the apparatus 100 and of the device 1 are exemplified in Figures 4 A and 4B. With reference to the latter, as it is shown the elastic deformability of the bristles 3 makes the apparatus 100 suitable for polishing shaped pieces P, P' having contours very different one from the other. In particular, in the disclosed arrangement the bristles 3 are apt to totally envelop the piece to be worked and to exert thereon the abrading action required by virtue of their working motion.
  • a device of a second embodiment of the invention is generally indicated by 10. Such a device 10 will be described solely with reference to the aspects differentiating it from the first embodiment described above.
  • the device 10 comprises a main body 20 having a substantially porous, and in particular substantially spongy, abrading structure.
  • the abrading structure 20 may be obtained by dipping a non-abrading porous body into an abrading bath.
  • the structure 20 is mounted on a support 40, in its turn connected or connectible to revolving driving means 101 of an apparatus 102 analogous to the one already described above.
  • the operation modes of the apparatus 102 are exemplified in Figures 6A and 6B, and for them the same considerations already reported above with regard to Figures 4A and 4B hold true.
  • the elastic deformability of the main body 20 makes the apparatus 102 suitable for polishing shaped pieces P, P' having contours highly different one from the other.
  • the body 20 is apt to totally envelop the piece to be worked and to exert thereon the required abrading action by virtue of its own working motion. It will be appreciated that the embodiments disclosed in the foregoing have the merit of an utmost simplicity of construction and of being implementable at a low cost, though being quite effective for a rapid and satisfactory polishing of the pieces.
  • variant embodiments can provide elastically deformable abrading means different from those disclosed above, optionally formed by a plurality of abrading elements that may be arranged like the bristles of the first embodiment.
  • cylindrical support of the bristles or of the porous structure can be replaced by supports of different construction, or anyhow by alternative means for connecting to the driving means.
  • the driving means can be apt to give to the abrading means a continuous or reciprocating rotary motion or a motion of translation rather than a rotary one, or a combination of the two.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Ce dispositif (1) de polissage de pièces façonnées en pierres dures et similaires comprend un corps abrasif constitué de soies (3) élastiquement déformables de façon à se conformer à la configuration des pièces à usiner (P, P') ayant des formes sensiblement différentes, et un support (4) à connecter à un moteur électrique rotatif (101) afin de transmettre aux soies (3) un mouvement rotatif d'usinage par rapport à la pièce à usiner.
PCT/IB2004/052208 2003-10-28 2004-10-26 Dispositif et appareil d'usinage de pierres dures et similaires WO2005039820A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2003A000498 2003-10-28
IT000498A ITRM20030498A1 (it) 2003-10-28 2003-10-28 Dispositivo ed apparato per la lavorazione di pietre dure e simili.

Publications (1)

Publication Number Publication Date
WO2005039820A1 true WO2005039820A1 (fr) 2005-05-06

Family

ID=30131639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/052208 WO2005039820A1 (fr) 2003-10-28 2004-10-26 Dispositif et appareil d'usinage de pierres dures et similaires

Country Status (2)

Country Link
IT (1) ITRM20030498A1 (fr)
WO (1) WO2005039820A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008035383A1 (fr) * 2006-09-20 2008-03-27 Mauro Di Mattia Dispositif doté d'inserts permettant de travailler des pierres dures et similaires

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315107A2 (fr) * 1987-11-02 1989-05-10 Dario Bandelli Brosse de rodage rotatif
DE9004808U1 (fr) * 1990-04-27 1990-10-04 Turboigel Vertriebsgesellschaft Mbh, 8000 Muenchen, De
US5020282A (en) * 1988-04-02 1991-06-04 Sankyo Rikagaku Co., Ltd. Grinding tool and method of making the same
EP0978242A1 (fr) * 1998-08-03 2000-02-09 Master Service S.r.l. Brosse pour le traitement de surface de matériaux
EP1036523A1 (fr) * 1999-02-16 2000-09-20 Master Service S.r.l. Brosse pour le traitement de surface de matériaux
EP1106102A2 (fr) * 1995-04-28 2001-06-13 Minnesota Mining And Manufacturing Company Brosse et filaments abrasifs
EP1177862A2 (fr) * 2000-08-04 2002-02-06 Quintilio Lupi Revêtement pour une meule de polissage, en particulier pour polir un matériau pierreux, et son procédé de fabrication

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315107A2 (fr) * 1987-11-02 1989-05-10 Dario Bandelli Brosse de rodage rotatif
US5020282A (en) * 1988-04-02 1991-06-04 Sankyo Rikagaku Co., Ltd. Grinding tool and method of making the same
DE9004808U1 (fr) * 1990-04-27 1990-10-04 Turboigel Vertriebsgesellschaft Mbh, 8000 Muenchen, De
EP1106102A2 (fr) * 1995-04-28 2001-06-13 Minnesota Mining And Manufacturing Company Brosse et filaments abrasifs
EP0978242A1 (fr) * 1998-08-03 2000-02-09 Master Service S.r.l. Brosse pour le traitement de surface de matériaux
EP1036523A1 (fr) * 1999-02-16 2000-09-20 Master Service S.r.l. Brosse pour le traitement de surface de matériaux
EP1177862A2 (fr) * 2000-08-04 2002-02-06 Quintilio Lupi Revêtement pour une meule de polissage, en particulier pour polir un matériau pierreux, et son procédé de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008035383A1 (fr) * 2006-09-20 2008-03-27 Mauro Di Mattia Dispositif doté d'inserts permettant de travailler des pierres dures et similaires

Also Published As

Publication number Publication date
ITRM20030498A1 (it) 2005-04-29
ITRM20030498A0 (it) 2003-10-28

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