EP0091003A2 - Polierkopf für Granit, Marmor und Platten aus ähnlichem Material - Google Patents

Polierkopf für Granit, Marmor und Platten aus ähnlichem Material Download PDF

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Publication number
EP0091003A2
EP0091003A2 EP83102843A EP83102843A EP0091003A2 EP 0091003 A2 EP0091003 A2 EP 0091003A2 EP 83102843 A EP83102843 A EP 83102843A EP 83102843 A EP83102843 A EP 83102843A EP 0091003 A2 EP0091003 A2 EP 0091003A2
Authority
EP
European Patent Office
Prior art keywords
polishing head
bracket
acting
granite
marble
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Withdrawn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
EP83102843A
Other languages
English (en)
French (fr)
Other versions
EP0091003A3 (de
Inventor
Giuseppina Maria Ferazzini
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0091003A2 publication Critical patent/EP0091003A2/de
Publication of EP0091003A3 publication Critical patent/EP0091003A3/de
Withdrawn legal-status Critical Current

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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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • B24B41/0475—Grinding heads for working on plane surfaces equipped with oscillating abrasive blocks, e.g. mounted on a rotating head

Definitions

  • This invention relates to a polishing head particularly for granite, marble, and the like slab materials.
  • a cam driven by a set of gears deriving their motion from the same shaft that drives the disk rotatively is provided.
  • a problem encountered with conventional heads is that they have rigid supports, so that they do not readily adjust to accommodate any slopes in the surface being processed, while they may originate significant vibration affecting the process quality.
  • a further object of the invention is to provide a polishing head, wherein the drive transmitting the oscillatory motion to the abrasive pads can accommodate elastically possible stresses without straining or otherwise damaging the drive members.
  • a polishing head particularly for granite, marble, and the like slab materials comprising a body connected to a bracket supported for translation by a stationary frame, said body having at the bottom a disk rotating axially with respect to said body and carrying a plurality of abrasive pads oscillating about substantially perpendicular axes to the axis of said disk, characterised in that said body is mounted on said bracket for oscillation about a substantially perpendicular axis to the axis of said body, there being further provided an elastic balancing means acting between said body and said stationary frame, and a dampening means acting between said body and said bracket.
  • the polishing head particularly for granite, marble, and the like slab materials comprises a body 1, which is connected to a bracket 2 supported for sliding movement in a vertical direction, i.e. perpendicularly to the conveyor belt 3 which feeds the slabs into the process, by a stationary frame generally indicated at 4.
  • bracket 2 The connection between the bracket 2 and frame 4 is accomplished by means of a cylinder 5 the rod of which is connected to the bracket 2.
  • the body 1 is connected to the bracket 2 by means of a pin 7 which allows the body 1 to oscillate about a perpendicular axis to the axis of the body 1 to readily adapt to different patterns of the surfaces being processed.
  • an elastic balancing means comprising coil springs 10 arranged to act between the upper portion of the body 1 and a lug 11 on the stationary frame 4 which overlies the body 1.
  • a dampening means 12 is provided to act between a ear 13 of the bracket 2 and the body 1.
  • a rotary disk 20 is carried rotatably which is driven rotatively by a vertical shaft 21 connected to conventional drive motors, schematically indicated at 22.
  • the rotary disk 20 carries, peripherally arranged at uniform intervals, a plurality of abrasive pads 30, which are mounted for oscillation about perpendicular axes to the cited vertical shaft.
  • connection is accomplished through a cam following arm 31 which extends from the hinge point of the abrasive pads and contacts a cylindrical cup cam 35 connected to a cogged pulley 36 carried rotatably on the vertical shaft 21.
  • the motion for rotating the cogged pulley 36 is derived directly from the shaft 21 through a cogged drive pulley 37 keyed to the shaft 21 and connected to a first return pulley 38 by means of a first cogged belt 39.
  • the first return cogged pulley is keyed to a small auxiliary shaft 40 to which is also keyed a second return pulley 41 which, through a second cogged drive belt 42, drives the cited cogged pulley 36 rotatively, thereby the oscillation imparted to the abrasive pads is at all times perfectly timed to the rotary movement of the rotary disk 20.
  • an elastic engagement means generally indicated at 50 which is substantially enclosed within the rotary disk interior and comprises a hollow cylinder 51 accommodating a spring 52 therein which acts on a small piston 53 defining at the top an engagement seat for a small ball 54 which couples by contact with a small peg 55 rigidly connected to the cited cam following arm.
  • the coupling of the peg to the ball is provided to avoid wear phenomena owing to the sliding movement which is generated between the peg 55 and piston 53 on account of the oscillation imparted to the cam following arm.
  • the elastic engagement means of the cam following feeler arm is adequately protected by that it is positioned inside the rotary disk, and hence, is not liable to wear owing to the presence of abrasive dust or other similar factors.
  • the body 1 being mounted oscillably, can readily adapt itself to any varying patterns of the slab surface, without the body 1 undergoing impact loads or vibrations, thanks to its oscillatory mount under the bias of an elastic balancing means and in association with a dampening means,
  • the materials used, as well as the dimensions and contingent shapes may be any selected ones to meet individual requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP83102843A 1982-04-02 1983-03-23 Polierkopf für Granit, Marmor und Platten aus ähnlichem Material Withdrawn EP0091003A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20550/82A IT1150518B (it) 1982-04-02 1982-04-02 Testa per la lucidatura particolarmente di lastre di granito,marmo e simili
IT2055082 1982-04-02

Publications (2)

Publication Number Publication Date
EP0091003A2 true EP0091003A2 (de) 1983-10-12
EP0091003A3 EP0091003A3 (de) 1985-01-23

Family

ID=11168640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102843A Withdrawn EP0091003A3 (de) 1982-04-02 1983-03-23 Polierkopf für Granit, Marmor und Platten aus ähnlichem Material

Country Status (2)

Country Link
EP (1) EP0091003A3 (de)
IT (1) IT1150518B (de)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507230A (de) *
US1662137A (en) * 1924-03-04 1928-03-13 Bethelplayer Co Lapping machine
US2013196A (en) * 1931-05-20 1935-09-03 Gen Spring Bumper Corp Polishing machine
US2108193A (en) * 1936-10-30 1938-02-15 Gen Motors Corp Sanding machine
US2429418A (en) * 1938-08-13 1947-10-21 Mayer Lucien Apparatus for surfacing and polishing hard materials
US2450157A (en) * 1946-08-23 1948-09-28 Peckett Samuel Charles Means for preparing true surfaces
DE805989C (de) * 1949-06-04 1951-06-11 Carl Fickert Flaechenschleif- und Poliervorrichtung fuer harte Werkstoffe
US3353305A (en) * 1965-01-27 1967-11-21 Bliss E W Co Tilted spindle grinder
DE2015385A1 (de) * 1970-04-01 1971-10-21 Fickert & Winterling KG Maschinen und Schleifscheibenfabnk, 8590 Marktred witz Flachenschleif Vorrichtung, msbe sondere zum Schleifen von Flachen an Werkstucken aus Stein, Glas und ähnlichen Werkstoffen
US3691580A (en) * 1970-11-05 1972-09-19 Houdaille Industries Inc Buffing head
FR2133714A1 (de) * 1971-04-16 1972-12-01 Bayer Ag
US3874123A (en) * 1973-10-11 1975-04-01 Mwa Company Metal conditioning planetary grinder
DE2519343A1 (de) * 1974-05-02 1975-11-06 Noritake Co Ltd Verfahren und vorrichtung zum schleifen von oberflaechenteilen von dicken platten
DE2607804A1 (de) * 1976-02-26 1977-09-01 Heinrich Fickert Vorrichtung zum flaechenschleifen von hartgestein und aehnlichen materialien mit diamantwerkzeugen

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507230A (de) *
US1662137A (en) * 1924-03-04 1928-03-13 Bethelplayer Co Lapping machine
US2013196A (en) * 1931-05-20 1935-09-03 Gen Spring Bumper Corp Polishing machine
US2108193A (en) * 1936-10-30 1938-02-15 Gen Motors Corp Sanding machine
US2429418A (en) * 1938-08-13 1947-10-21 Mayer Lucien Apparatus for surfacing and polishing hard materials
US2450157A (en) * 1946-08-23 1948-09-28 Peckett Samuel Charles Means for preparing true surfaces
DE805989C (de) * 1949-06-04 1951-06-11 Carl Fickert Flaechenschleif- und Poliervorrichtung fuer harte Werkstoffe
US3353305A (en) * 1965-01-27 1967-11-21 Bliss E W Co Tilted spindle grinder
DE2015385A1 (de) * 1970-04-01 1971-10-21 Fickert & Winterling KG Maschinen und Schleifscheibenfabnk, 8590 Marktred witz Flachenschleif Vorrichtung, msbe sondere zum Schleifen von Flachen an Werkstucken aus Stein, Glas und ähnlichen Werkstoffen
US3691580A (en) * 1970-11-05 1972-09-19 Houdaille Industries Inc Buffing head
FR2133714A1 (de) * 1971-04-16 1972-12-01 Bayer Ag
US3874123A (en) * 1973-10-11 1975-04-01 Mwa Company Metal conditioning planetary grinder
DE2519343A1 (de) * 1974-05-02 1975-11-06 Noritake Co Ltd Verfahren und vorrichtung zum schleifen von oberflaechenteilen von dicken platten
DE2607804A1 (de) * 1976-02-26 1977-09-01 Heinrich Fickert Vorrichtung zum flaechenschleifen von hartgestein und aehnlichen materialien mit diamantwerkzeugen

Also Published As

Publication number Publication date
EP0091003A3 (de) 1985-01-23
IT1150518B (it) 1986-12-10
IT8220550A0 (it) 1982-04-02

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