EP0920957A1 - Tête tangentielle pour le polissage et le lustrage du granit et du grès emaillè - Google Patents

Tête tangentielle pour le polissage et le lustrage du granit et du grès emaillè Download PDF

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Publication number
EP0920957A1
EP0920957A1 EP98121669A EP98121669A EP0920957A1 EP 0920957 A1 EP0920957 A1 EP 0920957A1 EP 98121669 A EP98121669 A EP 98121669A EP 98121669 A EP98121669 A EP 98121669A EP 0920957 A1 EP0920957 A1 EP 0920957A1
Authority
EP
European Patent Office
Prior art keywords
movement
arm
pin
journal
tangential
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Withdrawn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
EP98121669A
Other languages
German (de)
English (en)
French (fr)
Inventor
Francesco Gnoatto
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.)
Synergy Sarda SNC
Original Assignee
Synergy Sarda SNC
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 Synergy Sarda SNC filed Critical Synergy Sarda SNC
Publication of EP0920957A1 publication Critical patent/EP0920957A1/fr
Withdrawn legal-status Critical Current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
    • 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

  • the object of the present invention is to produce a head of the tangential type, capable of polish granite or glazed stoneware.
  • This movement allows the abrasive to work on the material only along a line of qualified contact tangential.
  • a cam mechanism is provided on which a roller which circulates which drives a lever so as to impart the pendulum movement to the arm which performs the Polishing of the material.
  • a mechanism to tilting tilting platform causes a lever which, in turn, prints the pendulum movement to the arm.
  • a plate mechanism which moves eccentrically relative to the axis of the head and imparts the movement pendulum to a pin which, in turn, communicates the movement to the swinging arm.
  • the invention proposes to produce a trangential polishing head making it possible to overcome these various drawbacks. This is resolved in accordance with the characteristics of the characterizing part of claim 1.
  • the mechanism used to print the pendulum abrasive movement has a series of satellite gears set in motion by a central gear, gears which have an eccentric hole inside which is provided a cross joint which prints to the trunnion the pendulum movement which, in turn, is transmitted to the arm and consequently to the abrasive.
  • the pin 3, integral with the carcass 1, maintains the fixed part of the head, while the shaft 4 is connected to the rotary part thereof.
  • the external gear 5 turns idly on the axis 9 of the eccentric 7, integral of the fixed part of the head, and it is in turn connected to the internal gear 6, secured to the part of the head which rotates around its own vertical axis 10.
  • the number of turns of the head which corresponds to the number of turns of the gear to internal gear 6, corresponds to a greater number of revolutions of the gear exterior 5.
  • the gear 5 which rotates in the eccentric position 9 by relative to the axis 10 of the head drives the gear 11, aligned with the axis 10 of the head.
  • This mechanism allows two degrees of freedom of movement to move the pin 15 reciprocating from side to side.
  • the abrasive 18 takes the form of a circular sector, so that the abrasive 18 is always in contact with the material, along a tangential line.
  • Each individual arm 17 is set in motion by a satellite gear 12 (Fig. 2 and 3), so that it is possible to obtain the movement of the arms in a simultaneous mode, sequential or alternating, depending on the meshing position of the satellite gears 12 with respect to to the central gear 11.
  • Figs. 5, 6 and 7 we can see schematically the position that the arms take with the work movement.
  • the arms from 21 to 26 are all in the same position, moving simultaneously, first in one direction, then in the opposite direction.
  • the arms from 21 to 26 are animated in a sequential movement which gets, for example, when the next arm is positioned relative to the previous arm of such that a complete cycle is formed between the first arm and the last.
  • pairs have been shown in symmetrical positions, for example, the pair of arms 21 and 22 is in the radial position while the second pair 23 and 24 has intermediate angular displacements and that the arms 25 and 26 are represented with angular displacements in the extreme position.
  • the arms may be in a number other than six, for example four or eight, without for this to leave the field of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP98121669A 1997-12-04 1998-11-13 Tête tangentielle pour le polissage et le lustrage du granit et du grès emaillè Withdrawn EP0920957A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI970214 1997-12-04
IT97VI000214A IT1297515B1 (it) 1997-12-04 1997-12-04 Testa tangenziale per la levigatura e la lucidatura del granito e del gres porcellanato

Publications (1)

Publication Number Publication Date
EP0920957A1 true EP0920957A1 (fr) 1999-06-09

Family

ID=11426514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121669A Withdrawn EP0920957A1 (fr) 1997-12-04 1998-11-13 Tête tangentielle pour le polissage et le lustrage du granit et du grès emaillè

Country Status (2)

Country Link
EP (1) EP0920957A1 (it)
IT (1) IT1297515B1 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20110026A1 (it) * 2011-02-24 2012-08-25 Luca Toncelli Macchina e mandrino per la levigatura o lucidatura di lastre di materiale lapideo o litoide.
RU2532598C2 (ru) * 2011-10-13 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Псковский государственный университет" Устройство для абразивной обработки плоских поверхностей с переменной скоростью резания и использованием шарнирно-рычажного механизма

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965965A (en) * 1988-07-06 1990-10-30 Wallin Sven E Grinding head for surfacing and polishing stone, marbles and other hard materials
EP0437831A1 (en) * 1990-01-18 1991-07-24 Brema Srl Lapping head with floating grinders for rocky materials, particularly for granite slabs
EP0657248A1 (en) * 1993-12-07 1995-06-14 Brema Srl Improved lapping head for rocky materials, particularly for granite slabs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965965A (en) * 1988-07-06 1990-10-30 Wallin Sven E Grinding head for surfacing and polishing stone, marbles and other hard materials
EP0437831A1 (en) * 1990-01-18 1991-07-24 Brema Srl Lapping head with floating grinders for rocky materials, particularly for granite slabs
EP0657248A1 (en) * 1993-12-07 1995-06-14 Brema Srl Improved lapping head for rocky materials, particularly for granite slabs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20110026A1 (it) * 2011-02-24 2012-08-25 Luca Toncelli Macchina e mandrino per la levigatura o lucidatura di lastre di materiale lapideo o litoide.
CN102649252A (zh) * 2011-02-24 2012-08-29 卢卡·通切利 用于平整或抛光石材或石状材料的板坯的机器和心轴
CN102649252B (zh) * 2011-02-24 2017-04-12 卢卡·通切利 用于平整或抛光石材或石状材料的板坯的机器和心轴
RU2532598C2 (ru) * 2011-10-13 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Псковский государственный университет" Устройство для абразивной обработки плоских поверхностей с переменной скоростью резания и использованием шарнирно-рычажного механизма

Also Published As

Publication number Publication date
ITVI970214A1 (it) 1999-06-04
IT1297515B1 (it) 1999-12-17
ITVI970214A0 (it) 1997-12-04

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