EP0628381A1 - Head for polishing machine with oscillating sector holders - Google Patents

Head for polishing machine with oscillating sector holders Download PDF

Info

Publication number
EP0628381A1
EP0628381A1 EP94830238A EP94830238A EP0628381A1 EP 0628381 A1 EP0628381 A1 EP 0628381A1 EP 94830238 A EP94830238 A EP 94830238A EP 94830238 A EP94830238 A EP 94830238A EP 0628381 A1 EP0628381 A1 EP 0628381A1
Authority
EP
European Patent Office
Prior art keywords
shaft
head
sector
polishing machine
holder
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Withdrawn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
EP94830238A
Other languages
German (de)
French (fr)
Inventor
Roberto Signorini
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.)
Comes Srl
Original Assignee
Comes 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 Comes Srl filed Critical Comes Srl
Publication of EP0628381A1 publication Critical patent/EP0628381A1/en
Withdrawn legal-status Critical Current

Links

Images

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 present invention relates to a head for a polishing machine, especially for stony materials, with the oscillating sector carriers.
  • the main purpose of the present invention is to eliminate the aforementioned drawbacks by proposing a polisher head with the sector carriers oscillating around a corresponding axis. longitudinal, parallel to the work plan, which is compact and of high operational reliability.
  • a head for a polishing machine according to the invention is very compact in size, thus the polishing machines which are provided with them in turn result in space-saving, more comfortable use and more easily transportable; that the degree of finish of the area treated is very high; that a head for a polishing machine according to the invention is very reliable, even after a long period of operation; that one or more of the aforementioned sector carriers can either move by traslation alternately along the longitudinal direction of the respective shafts than alternately oscillate around said shafts, thus allowing special treatments of the surfaces to be polished, by effect of said combined movement thus imposed on corresponding abrasive sectors; that said head can be provided with a large number of sector carriers thus enlivened.
  • each sector holder (19) is printed with an alternating oscillation movement around the respective axis (90), by the effect of the action exerted by the pivot (16) of the shaft (9) on the walls of the guide correspondent (17).
  • the free sliding of the pivot (12) in the corresponding track (13) of the shaft (9) prevents the simultaneous alternative tranlation of the ring (10) which, in such a way, results dissociated from the movement imposed on the respective shaft.
  • a prefixed number of said sector carriers (19) is due to an alternative longitudinal translational movement and, at the same time, to an alternating oscillating movement around the respective shafts (9).
  • the sector carriers (19) are arranged so that of the two adjacent ones, one moves around the respective shaft (9), and the other moves alternately either by translation in the longitudinal direction only by rotation around said shaft (9).
  • the shaft (9) of the sector carriers (19) applied to be doubly moved acts directly on the first ring (10), which is conveniently provided with a buttonhole with a helical track for housing the aforementioned stud (16), and it is directly connected to the sector holder (19) which must be moved.
  • the sector holder (19) results in moving either alternately by translation, in the direction of the respective shaft (9), than by alternating rotation around said shaft (9).
  • the transmission ratio of the gear train (4,5,14) is variable in relation to the frequency of the alternating axial movement and the oscillating movement of the sector carriers (19).
  • the inclination of the buttonholes (17) of the rings (10,18) is variable in relation to the magnitude of the oscillations of the section holders (19) around the respective axes (90). Still, advantageously, the direction of the inclination of the buttonholes (17) of the rings (18, 10) of two adjacent sector carriers (19) can be discordant or respectively concordant, in order to obtain their oscillation of discordant or respectively concordant rotation.
  • a head for a polishing machine according to the invention can be equipped with a variable number of section holders (19), relative to the specific use for which it is intended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

Head for a polishing machine, comprising a vertical drive shaft (1) connected on one side to a corresponding movement member (1') and on the other side to a casing (3) by means of a flange (2), several sector holders (19) each of which is oscillating about a corresponding longitudinal axis (90) parallel to the working plane, a cam (6) with an annular groove (7) for the movement of the said sector holders (19), this cam being actuated by means of a set of gears (4, 5, 14) activated by the said drive shaft (1), in which head: the shaft (9) of at least one sector holder (19) is provided with a first vertical stud (15) integral with a roller (8) which is guided in the groove (7) of the cam (6) and with a second stud (16) transverse to the shaft (9) and extending beyond it; a first ring (10) mounted on the shaft (9) of each sector holder (19) and fixed to the casing (3) and provided with a seat (11) for an idling pivot (12) orthogonal to the shaft (9): the said pivot (12) being fastenable to the ring (10) in a way such that it ends up running in a corresponding longitudinal through-track in the shaft (9); a second ring (18) which is coaxial with and having a smaller diameter than the first (10) secured to the corresponding sector holder (19) and provided with two button hole slots (17) with helical tracks for guiding the ends of the abovementioned second stud (16) of the respective shaft (9). <IMAGE>

Description

La présente invention a pour objet une tête pour machine polisseuse, spécialement pour matériaux pierreux, avec les porte-secteurs oscillants.The present invention relates to a head for a polishing machine, especially for stony materials, with the oscillating sector carriers.

Il est connu, d'après le document italien N° 1.198.798 du même titulaire, une tête de machine polisseuse avec les porte-secteurs oscillants autour d'un axe incliné par rapport au plan de travail.
Ce dispositif connu utilise une came tubulaire montée folle et concentrique avec un arbre vertical relié à un organe moteur, laquelle, pendant l'usage, provoque l'oscillation de plusieurs balanciers. Lesdis balanciers, à leur tour, entraînent l'oscillation discordante d'autres balanciers auxquels sont fixés des éléments correspondents de support des secteurs abrasifs ou les porte-secteurs. L'oscillation istantanée de chaque porte-secteur est de sens opposé à celui des porte-secteurs adjacents.
Mais étant donné que ladite machine a vastes proportions, et donc, étant donné que chaque polisseuse est equipée d'un nombre important de têtes, ainsi structurées, il en décule des problèmes d'encombrement et de transport.It is known, from Italian document No. 1,198,798 of the same holder, a polishing machine head with the sector carriers oscillating around an axis inclined relative to the work plane.
This known device uses a tubular cam mounted crazy and concentric with a vertical shaft connected to a drive member, which, during use, causes the oscillation of several pendulums. The said pendulums, in turn, cause the discordant oscillation of other pendulums to which are fixed corresponding elements for supporting the abrasive sectors or the sector carriers. The instantaneous oscillation of each sector holder is in the opposite direction to that of the adjacent sector holders.
But since said machine has large proportions, and therefore, since each polisher is equipped with a large number of heads, thus structured, it gives rise to problems of space and transport.

Le but principale de la presente invention est celui d'éliminer les incovénients précités en proposant une tête pour polisseuse avec les porte-secteurs oscillants autour d'un correspondant axe longitudinal, parallèle au plan de travail, qui soit d'un encombrement reduit et de grande fiabilité operationelle.The main purpose of the present invention is to eliminate the aforementioned drawbacks by proposing a polisher head with the sector carriers oscillating around a corresponding axis. longitudinal, parallel to the work plan, which is compact and of high operational reliability.

Ce résultat a été atteint conformément à l'invention en adoptant l'idée de réaliser une tête pour machine polisseuse avec un arbre moteur vertical solidaire avec une bride d'entraïnement d'un carter, une pluralité de porte-secteurs chacun desquels oscillant autour d'un axe longitudinal correspondant, c'est-à-dire parallèle au plan de travail, une camme annulaire à gorge, pour mouvementer les porte-secteurs, la quelle est actionée au moyen d'un train d'engranages alimenté par ledit arbre moteur, où:

  • l'arbre de chaque porte-secteur est muni d'un premier goujon, vertical et solidaire avec un rouleau guidé dans la gorge de ladite came et d'un deuxième goujon, transversal par rapport à l'arbre et dépassant de celui-ci;
  • une bague est montée sur l'arbre de chaque porte-secteur, fixée sur le carter, laquelle est munie d'un siege pour loger un pivot correspondant: ledit pivot étant orthogonal à l'abre du porte-secteur et étant fixable à la bague, en manière d'en resulter roulant dans une correspondante piste qui traverse longitudinalement l'arbre;
  • une deuxième bague, coaxiale et de diamètre inférieur à la précédente, est solidale au précité porte-secteur et pourvue de deux boutonnières à piste hélicoïdale dans lesquells sont logés les extrémité du précité deuxième goujon de l'arbre du porte-secteur.
This result was achieved in accordance with the invention by adopting the idea of making a head for a polishing machine with a vertical motor shaft integral with a drive flange of a casing, a plurality of sector carriers each of which oscillating around d '' a corresponding longitudinal axis, that is to say parallel to the work plan, an annular grooved cam, to move the sector carriers, which is actuated by means of a gear train powered by said motor shaft , or:
  • the shaft of each sector holder is provided with a first stud, vertical and integral with a roller guided in the groove of said cam and with a second stud, transverse with respect to the shaft and projecting from it;
  • a ring is mounted on the shaft of each sector holder, fixed on the casing, which is provided with a seat to accommodate a corresponding pivot: said pivot being orthogonal to the abre of the sector holder and being fixed to the ring , so as to result rolling in a corresponding track which crosses the shaft longitudinally;
  • a second ring, coaxial and of smaller diameter than the previous one, is integral with the aforementioned sector holder and provided with two buttonholes with helical track in which the ends of the aforementioned second stud of the shaft of the shaft are housed sector holder.

Les avantages obtenus grace à la presente invention consistent essentiellement en ce que une tête pour machine polisseuse selon l'invention est d'encombrement très contenu, ainsi les machines polisseuses qui en sont pourvues résultent à leur tour peu encombrantes, d'usage plus confortable et plus facilment transportables; que le degré de finition de la superficie traitée est très grand; qu' une tête pour machine polisseuse en conformité de l'invention est très fiable, même après une longue periode de fonctionnement; que un ou plusieurs des précités porte-secteurs peuvent soit se mouvoir par traslation alternativement le long de la direction longitudinale des respectifs arbres que alternativement osciller autour desdits arbres, ainsi de permettre traittements speciaux des surfaces à polir, par effect dudit mouvement combiné ainsi imposé aux correspondants secteurs abrasifs; que ladite tête peut être pourvue d'un grand nombre de porte-secteurs ainsi mouvementés.The advantages obtained thanks to the present invention essentially consist in that a head for a polishing machine according to the invention is very compact in size, thus the polishing machines which are provided with them in turn result in space-saving, more comfortable use and more easily transportable; that the degree of finish of the area treated is very high; that a head for a polishing machine according to the invention is very reliable, even after a long period of operation; that one or more of the aforementioned sector carriers can either move by traslation alternately along the longitudinal direction of the respective shafts than alternately oscillate around said shafts, thus allowing special treatments of the surfaces to be polished, by effect of said combined movement thus imposed on corresponding abrasive sectors; that said head can be provided with a large number of sector carriers thus enlivened.

Ces avantages et caractéristiques de l'invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés donnés à titre d'exemplification pratique de l'invention, mais à ne pas considérer dans le sens limitatif où: la Fig. 1 représente la vue en perspective, partiellement en coupe, d'une tête pour machine polisseuse selon l'invention, conformément à une première forme d'actuation, où est visible un porte-secteur seulement oscillant autour du respectif arbre; la Fig. 2 représente la vue perspective, partiellement en coupe, d'une tête pour machine polisseuse selon l'invention, conformément à une forme alternative d'actuation, où est visible un porte-secteur lequel peut se mouvoir soit alternativement par translation dans la respective direction longitudinale que alternativement osciller autour du respectif arbre. Rèduite à sa structure essentielle et en référence à la Fig. 1 des dessins annexés une tête pour machine polisseuse, spécialement pour materiaux pierreux, comprenante un arbre moteur vertical (1) rigidement connexe sur un coté, à un correspondant organe (1') de mouvement et de l'autre coté, à un carter (3) au moyen d'un bride (2), plusieurs porte-secteurs (19) chacun desquels est oscillant autour d'un correspondent axe longitudinal (90) parallèle au plan de travail, une came (6) à gorge annulaire (7) pour mouvementer lesdits porte-secteurs (19) laquelle est actionnée au moyen d'un train d'engrenage (4,5,14) alimenté par le précité arbre moteur (1), conformément à l'invention comporte que:

  • l'arbre (9) de chaque porte-secteur (19) est pourvu d'un premier goujon vertical (15) solidaire avec un rouleau (8) dans la gorge (7) de ladite came (6), et d'un deuxième goujon (16), trasversal par rapport à l'arbre (9) et dépassant de celui-ci;
  • une premiére bague (10) est montée sur l'arbre (9) de chaque porte-secteur (19), solidaire avec le carter (3), et pourvue d'un siege (11) pour un pivot (12) monté en folle, orthogonal à l'arbre (9): ledit pivot (12) étant fixable à la bague (10), de façon à resulter librement roulant dans une correspondente piste qui passe longitudinale de l'arbre (9);
  • une deuxiéme bague (18), coaxiale et de diamètre inférieur à la première (10), est solidaire au correpondant porte-secteur (19), et elle est pourvue de deux boutonnières (17) à piste hèlicoïdale dans lesquelles sont logées les extrémités du goujon (16) de l'arbre (9) respectif. Avantageusement, conformément à l'invention, ladite deuxième bague (18) est pourvue d'une boutonnière périphérique (20) à travers laquelle est librement passant le goujon (12) de l'arbre (9) correspondant, de façon à en consentir l'oscillation autour du respectif axe (90) quel que soit la position istantanée de la came (6) et celle de l'arbre.
These advantages and characteristics of the invention as well as others will be more and better understood by each person skilled in the art in the light of the description which will follow and with the aid of the appended drawings given by way of practical example of the invention, but not to be considered in the limiting sense where: FIG. 1 represents the perspective view, partially in section, of a head for a polishing machine according to the invention, in accordance with a first form of actuation, where a sector carrier visible only oscillating around the respective shaft; Fig. 2 shows the perspective view, partially in section, of a head for a polishing machine according to the invention, in accordance with an alternative form of actuation, where a sector holder is visible which can be moved either alternately by translation in the respective direction longitudinal that alternately oscillate around the respective shaft. Reduced to its essential structure and with reference to FIG. 1 of the accompanying drawings a head for a polishing machine, especially for stony materials, comprising a vertical drive shaft (1) rigidly connected on one side, to a corresponding movement member (1 ') and on the other side, to a casing ( 3) by means of a flange (2), several sector carriers (19) each of which is oscillating around a corresponding longitudinal axis (90) parallel to the work surface, a cam (6) with annular groove (7) to move said sector carriers (19) which is actuated by means of a gear train (4,5,14) supplied by the aforementioned motor shaft (1), in accordance with the invention comprises that:
  • the shaft (9) of each sector holder (19) is provided with a first vertical stud (15) integral with a roller (8) in the groove (7) of said cam (6), and with a second stud (16), transverse with respect to the shaft (9) and projecting from it;
  • a first ring (10) is mounted on the shaft (9) of each sector holder (19), integral with the casing (3), and provided with a seat (11) for a pivot (12) mounted idly, orthogonal to the shaft (9): said pivot (12) being fixed to the ring (10), so as to result freely rolling in a corresponding track which passes longitudinally from the shaft (9);
  • a second ring (18), coaxial and of smaller diameter than the first (10), is integral with the corresponding sector carrier (19), and it is provided with two buttonholes (17) with helical track in which the ends of the stud (16) of the respective shaft (9). Advantageously, in accordance with the invention, said second ring (18) is provided with a peripheral buttonhole (20) through which the stud (12) of the corresponding shaft (9) is freely passing, so as to consent to it. oscillation around the respective axis (90) regardless of the istantane position of the cam (6) and that of the shaft.

La rotation horizontale de l'arbre (1), et avec celui de la came (6), détermine un mouvement rotatoire des rouleaux (8) et en même temps une translation horizontale alternative qui, par l'intermédiaire des goujons (15), provoque le mouvement longitudinale alternatif des arbres (9) correspondantes. Simultanément, à chaque porte-secteur (19) est imprimé un mouvement d'oscillation alternatif autour du respectif axe (90), par l'effet de l'action exercée par le pivot (16) de l'arbre (9) sur les parois du correspondant guide (17). Le coulissement libre du pivot (12) dans la correspondante piste (13) de l'arbre (9) empêche la simultanée tranlation alternative de la bague (10) laquelle, de telle façon, resulte dissociée du mouvement imposé au respectif arbre.The horizontal rotation of the shaft (1), and with that of the cam (6), determines a rotary movement of the rollers (8) and at the same time an alternative horizontal translation which, by means of the studs (15), causes the reciprocating longitudinal movement of the corresponding shafts (9). Simultaneously, each sector holder (19) is printed with an alternating oscillation movement around the respective axis (90), by the effect of the action exerted by the pivot (16) of the shaft (9) on the walls of the guide correspondent (17). The free sliding of the pivot (12) in the corresponding track (13) of the shaft (9) prevents the simultaneous alternative tranlation of the ring (10) which, in such a way, results dissociated from the movement imposed on the respective shaft.

Conformément à une forme alternative d'actuation et en reference à la Fig. 2 des dessins annexés, pour permettre particulièrs usinages des superficies à traiter, un nombre préfixé desdits porte-secteurs (19) est dué d'un mouvement de translation longitudinale alternative et, au même temps, d'un mouvement oscillatoir alternatif autour des respectifs arbres (9).
Par exemple, on référence au cas de nombre pair de porte-secteur (19), il est prevu que la moitié de ceux-ci se meuvent alternativement le long des respectives directions longitudinales, l'autre moitié se mouvant soit longitudinellement par translation alternativement, que par oscillation autour aux respectifs arbres (9).According to an alternative form of actuation and with reference to FIG. 2 of the accompanying drawings, to allow particular machining of the areas to be treated, a prefixed number of said sector carriers (19) is due to an alternative longitudinal translational movement and, at the same time, to an alternating oscillating movement around the respective shafts (9).
For example, reference is made to the case of an even number of sector carriers (19), it is intended that half of these move alternately along the respective longitudinal directions, the other half moving either longitudinally by translation alternately, only by oscillation around the respective trees (9).

Avantageusement, conformément à ladite forme alternative d'actuation, les porte-secteurs (19) sont disposés de façon que des deux adjacents, l'un branle autour du respectif arbre (9), et l'autre bouge alternativement soit par translation dans la direction longitudinale que par rotation autour au dit arbre (9).Advantageously, in accordance with said alternative form of actuation, the sector carriers (19) are arranged so that of the two adjacent ones, one moves around the respective shaft (9), and the other moves alternately either by translation in the longitudinal direction only by rotation around said shaft (9).

Pour consentir le double et simultané mouvement des porte-secteurs (19), selon une structure fonctionnelle déjà connue par le même titulaire et decrite dans le document IT Nr. F192A112, est avantageusement prévu que l'arbre (9) des porte-secteur (19) applés à être doublement mouvementés agisse directement sur la première bague (10), laquelle est opportunement pourvue d'une boutonnière à piste hélicoïdal pour le logement du précité goujon (16), et elle est directement reliée au porte-secteur (19) qu'il faut mouvementer. De cette façon, le porte-secteur (19) resulte se mouvoir soit alternativement par translation, dans la direction du respectif arbre (9), que par rotation alternative autour dudit arbre (9).To allow the double and simultaneous movement of the sector carriers (19), according to a structure already known by the same holder and described in document IT Nr. F192A112, it is advantageously provided that the shaft (9) of the sector carriers (19) applied to be doubly moved acts directly on the first ring (10), which is conveniently provided with a buttonhole with a helical track for housing the aforementioned stud (16), and it is directly connected to the sector holder (19) which must be moved. In this way, the sector holder (19) results in moving either alternately by translation, in the direction of the respective shaft (9), than by alternating rotation around said shaft (9).

Avantageusement, conformément à l'invention, le rapport de transmission du train d'engrenages (4,5,14) est variable en relation à la frequence volue du mouvement axial alternatif et du mouvement oscillatoir des porte-secteurs (19).Advantageously, in accordance with the invention, the transmission ratio of the gear train (4,5,14) is variable in relation to the frequency of the alternating axial movement and the oscillating movement of the sector carriers (19).

Semblablement, conformément à l'invention l'inclinaison des boutonnières (17) des bagues (10,18) est variable en relation à l'ampleur volue des oscillations des porte-sectuers (19) autour des respectifs axes (90).
Encore, avantageusement, le sens de l'inclinaison des boutonnières (17) des bagues (18,10) de deux porte-secteurs (19) adjacentes peut être discordante ou respectivement concordante, pour obtenir leur oscillation de rotation discordante ou respectivement concordante.Similarly, in accordance with the invention, the inclination of the buttonholes (17) of the rings (10,18) is variable in relation to the magnitude of the oscillations of the section holders (19) around the respective axes (90).
Still, advantageously, the direction of the inclination of the buttonholes (17) of the rings (18, 10) of two adjacent sector carriers (19) can be discordant or respectively concordant, in order to obtain their oscillation of discordant or respectively concordant rotation.

Il va de soi qu' une tête pour machine polisseuse selon l'invention peut être équipée d'un nombre variable de porte-sectuers (19), relativement à l'usage spécific à laquelle est destinée.It goes without saying that a head for a polishing machine according to the invention can be equipped with a variable number of section holders (19), relative to the specific use for which it is intended.

Claims (7)

1) Tête pour machine polisseuse, spécialment pour matériaux pierreux, comprenante un arbre moteur vertical (1) rigidement solidaire d'un côté, à un organe de mouvement (1') et de l'autre côté, à un carter (3) au moyen d'une bride (2), une pluralité de porte-secteurs (19) chacun desquels est oscillant autour à son axe longitudinal (90) parallèle au plan de travail, une came (6) à gorge annulaire (7) pour le mouvement desdits porte-sectuers (19) la quelle est commandée au moyen d'un train d'engrenages (4,5,14) activée par ledit arbre moteur (1), caractérisée en ce que: l'arbre (9) d'au moins un porte-sectuer (19) est pourvu d'un premier goujon vertical (15) solidaire à un rouleau (8) qui est guidé dans la gorge (7) de ladite came (6), et d'un deuxième goujon (16), trasversal à l'arbre (9) et dépassant de celui-ci; une première bague (10) est montée sur l'arbre (9) de chaque porte-secteur (19), solidaire avec le carter (3), et pourvue d'un siege (11) pour un pivot (12) monté folle, orthogonale à l'arbre (9): ledit pivot (12) étant fixable sur la couronne (10) de façon à resulter librement roulant dans une correspondante piste passante longitudinalement de l'arbre (9); une deuxième couronne (18), coaxiale et de diamètre inferieur à la première (10), est solidaire au correspondant porte-sectuer (19), et elle est pourvue de deux boutonnières (17) à piste hélicoïdale dans lequelles sont installées les extrémités dudit deuxième goujon (16) du respectif arbre (9). 1) Head for a polishing machine, especially for stony materials, comprising a vertical drive shaft (1) rigidly fixed on one side to a movement member (1 ') and on the other side to a casing (3) at by means of a flange (2), a plurality of sector carriers (19) each of which is oscillating around its longitudinal axis (90) parallel to the work plane, a cam (6) with annular groove (7) for movement of said sector carriers (19) which is controlled by means of a gear train (4,5,14) activated by said drive shaft (1), characterized in that: the shaft (9) of at least one culturing holder (19) is provided with a first vertical stud (15) integral with a roller (8) which is guided in the groove (7) of said cam (6), and with a second stud (16 ), transverse to the shaft (9) and protruding therefrom; a first ring (10) is mounted on the shaft (9) of each sector holder (19), integral with the casing (3), and provided with a seat (11) for a pivot (12) mounted idle, orthogonal to the shaft (9): said pivot (12) being fixable on the crown (10) so as to result in free rolling in a corresponding track passing longitudinally from the shaft (9); a second crown (18), coaxial and of smaller diameter than the first (10), is integral with the corresponding holder-sectuer (19), and it is provided with two buttonholes (17) with helical track in which are installed the ends of said second stud (16) of the respective shaft (9). 2) Tête pour machine polisseuse selon la revendication 1 caractérisée en ce que ladite deuxième couronne (18) est pourvue d'une boutonnière peripherique (20) pour en consentir l'oscillation autour du respectif axe (90) pour n'importe quelle position istantanée de la came (6) ou de l'arbre (9), sans aucune interference avec le pivot (12) dudit arbre (9). 2) head for a polishing machine according to claim 1 characterized in that said second ring (18) is provided with a peripheral buttonhole (20) to allow its oscillation around the respective axis (90) for any istantane position of the cam (6) or of the shaft (9), without any interference with the pivot (12) of said shaft (9). 3) Tête pour machine polisseuse selon la revendication 1 caractérisée en ce que le rapport de transmission dudit train d'engrenages (4,5,14) est variable en relation à la frequence voulue du mouvement axial alternatif et du mouvement oscillatoir des porte-secteurs (19). 3) Head for polishing machine according to claim 1 characterized in that the transmission ratio of said gear train (4,5,14) is variable in relation to the desired frequency of the alternating axial movement and the oscillating movement of the sector carriers (19). 4) Tête pour machine polisseuse selon la revendication 1 caractérisée en ce que l'inclinaison desdites boutonnières (17) des bagues (10,18) est variable en relation à l'ampleur voulue des oscillations des porte-sectuers (19) autour des respectifs axes (90). 4) Head for polishing machine according to claim 1 characterized in that the inclination of said buttonholes (17) of the rings (10,18) is variable in relation to the desired amplitude of the oscillations of the holder-sectuers (19) around the respective axes (90). 5) Tête pour machine polisseuse selon la revendication 1 caractérisée en ce que le sens de l'inclinaison desdites boutonnières (17) des bagues (18,10) de deux porte-secteurs (19) adjacentes peut être discordante ou respectivement concordante, pour obetenir leur oscillation discordante ou respectivement concordante. 5) head for a polishing machine according to claim 1 characterized in that the direction of the inclination of said buttonholes (17) of the rings (18,10) of two adjacent sector carriers (19) may be discordant or respectively concordant, in order to obtain their discordant or respectively concordant oscillation. 6) Tête pour machine polisseuse selon la revendication 1 caractérisée en ce que est équipée d'un nombre variable de porte-sectuers (19), relativement à l'usage spécific auquel est destinée. 6) Head for polishing machine according to claim 1 characterized in that is equipped with a variable number of carrier-sectuers (19), relative to the specific use for which is intended. 7) Tête pour machine polisseuse, spécialment pour matériaux pierreux, comprenante un arbre moteur vertical (1) rigidement solidaire d'un côté, à un correspondant organe de mouvement (1') et de l'autre côté, à un carter (3) au moyen d'une bride (2), une pluralité de porte-secteurs (19) chacun desquels se bouge alternativement le long d'un axe longitudinal (90) parallèle au plan de travail que ?alternativement autour dudit axe (90), une came (6) à gorge annulaire (7) pour le mouvement desdits porte-sectuers (19) la quelle est axionnée au moyen d'un train d'engrenages (4,5,14) activée par ledit arbre moteur (1), caractérisée en ce que: l'arbre (9) d'au moins un porte-sectuer (19) est pourvu d'un premier goujon vertical (15) solidaire à un rouleau (8) qui est guidé dans la gorge (7) de ladite came (6), et d'un deuxième goujon (16), trasversal à l'arbre (9) et dépassant de celui-ci; une première bague (10) est montée sur l'arbre (9) de chaque porte-secteur (19), solidaire avec le carter (3) et pourvue d'un siege (11) pour un pivot (12) monté folle, orthogonale à l'arbre (9):ledit pivot (12) étant fixable sur la couronne (10), de façon à resulter librement roulant dans une correspondante piste passante longitudinalement de l'arbre (9); une deuxième couronne (18), coaxiale et de diamètre inferieur à la première (10), est solidale au correspondant porte-sectuer (19) et elle est pourvue de deux boutonnières (17) à piste hélicoïdale dans lequelles sont installées les extrémitès du précité deuxième goujon (16) du respectif arbre (9). 7) Head for a polishing machine, especially for stony materials, comprising a vertical drive shaft (1) rigidly fixed on one side, to a corresponding movement member (1 ') and on the other side, to a casing (3) by means of a flange (2), a plurality of sector carriers (19) each of which moves alternately along a longitudinal axis (90) parallel to the work plane that? alternately around said axis (90), a cam (6) with annular groove (7) for the movement of said holder-sectuers (19) which it is axiated by means of a gear train (4,5,14) activated by said motor shaft (1), characterized in that: the shaft (9) of at least one cultivation carrier (19) is provided with a first vertical stud (15) integral with a roller (8) which is guided in the groove (7) of said cam (6), and a second stud (16), transverse to the shaft (9) and projecting from it; a first ring (10) is mounted on the shaft (9) of each sector holder (19), integral with the casing (3) and provided with a seat (11) for a pivot (12) mounted loose, orthogonal to the shaft (9): said pivot (12) being fixable on the crown (10), so as to result freely rolling in a corresponding pass-way longitudinally of the shaft (9); a second crown (18), coaxial and of diameter smaller than the first (10), is integral with the corresponding carrier-sectuer (19) and it is provided with two buttonholes (17) with helical track in which the ends of the aforementioned are installed second stud (16) of the respective shaft (9).
EP94830238A 1993-05-25 1994-05-23 Head for polishing machine with oscillating sector holders Withdrawn EP0628381A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI930104 1993-05-25
ITFI930104A IT1262522B (en) 1993-05-25 1993-05-25 HEAD FOR POLISHING MACHINE WITH OSCILLATING SECTOR HOLDERS.

Publications (1)

Publication Number Publication Date
EP0628381A1 true EP0628381A1 (en) 1994-12-14

Family

ID=11350479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94830238A Withdrawn EP0628381A1 (en) 1993-05-25 1994-05-23 Head for polishing machine with oscillating sector holders

Country Status (2)

Country Link
EP (1) EP0628381A1 (en)
IT (1) IT1262522B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737548A1 (en) * 1995-04-14 1996-10-16 CO.ME.S. S.r.l. Improved head for polishing machines with supports for oscillating segments
WO2009090551A1 (en) * 2008-01-18 2009-07-23 Co.Me.S S.R.L. 'head for the treatment of stone and ceramic material
WO2010106389A1 (en) * 2009-03-18 2010-09-23 Co.Me.S. S.R.L. Head for the treatment of stone and ceramic materials
ITPD20100290A1 (en) * 2010-10-01 2010-12-31 Cornelio Mason SANDING HEAD WITH OSCILLANT SECTORS, WITH TWO ABRASIVES APPAIATI.
CN102886736A (en) * 2011-07-22 2013-01-23 广东科达机电股份有限公司 Novel combined type polishing grinding head
ITRE20110103A1 (en) * 2011-11-28 2013-05-29 B M R S P A HEAD FOR SMOOTHING AND / OR POLISHING OF SUBSTANTIALLY LASTRIFORMS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437831A1 (en) * 1990-01-18 1991-07-24 Brema Srl Lapping head with floating grinders for rocky materials, particularly for granite slabs
EP0510603A2 (en) * 1991-04-23 1992-10-28 Simec S.P.A. Grinder head, particularly for polishing marble, granite and stone materials in general
EP0571340A1 (en) * 1992-05-22 1993-11-24 CO.ME.S. S.r.l. Head for polishing machine with oscillating sector holders

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437831A1 (en) * 1990-01-18 1991-07-24 Brema Srl Lapping head with floating grinders for rocky materials, particularly for granite slabs
EP0510603A2 (en) * 1991-04-23 1992-10-28 Simec S.P.A. Grinder head, particularly for polishing marble, granite and stone materials in general
EP0571340A1 (en) * 1992-05-22 1993-11-24 CO.ME.S. S.r.l. Head for polishing machine with oscillating sector holders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737548A1 (en) * 1995-04-14 1996-10-16 CO.ME.S. S.r.l. Improved head for polishing machines with supports for oscillating segments
WO2009090551A1 (en) * 2008-01-18 2009-07-23 Co.Me.S S.R.L. 'head for the treatment of stone and ceramic material
WO2010106389A1 (en) * 2009-03-18 2010-09-23 Co.Me.S. S.R.L. Head for the treatment of stone and ceramic materials
ITPD20100290A1 (en) * 2010-10-01 2010-12-31 Cornelio Mason SANDING HEAD WITH OSCILLANT SECTORS, WITH TWO ABRASIVES APPAIATI.
CN102886736A (en) * 2011-07-22 2013-01-23 广东科达机电股份有限公司 Novel combined type polishing grinding head
ITRE20110103A1 (en) * 2011-11-28 2013-05-29 B M R S P A HEAD FOR SMOOTHING AND / OR POLISHING OF SUBSTANTIALLY LASTRIFORMS

Also Published As

Publication number Publication date
IT1262522B (en) 1996-07-02
ITFI930104A0 (en) 1993-05-25
ITFI930104A1 (en) 1994-11-25

Similar Documents

Publication Publication Date Title
EP0808701B1 (en) Wire saw
FR2554198A1 (en) VOLTAGE ADJUSTMENT DEVICE FOR DRIVE BELT
EP0628381A1 (en) Head for polishing machine with oscillating sector holders
EP0571340B1 (en) Head for polishing machine with oscillating sector holders
FR2818295A1 (en) CONTINUOUS DRAWING DEVICE FOR KNITTING MACHINE
CA2452060C (en) Device for transporting parts for supplying machines
EP0073725A1 (en) Machine for the repair and/or maintenance of floors
FR2719321A1 (en) Device for needling a circular fiber mattress, in particular in the form of a circle ring.
EP0846525A1 (en) Method for edge grinding of glass plates
CA1117298A (en) Machine tool for shaping workpieces, particularly workpieces with curved surfaces
EP0869858B1 (en) Machining unit with rotating head
FR2578467A1 (en) DEVICE FOR SURFACING AND POLISHING THE VERTICAL EDGE OF A STONE OR A PREFABRICATED MASSIVE ELEMENT
FR2510459A1 (en) DEVICE FOR CUTTING A STRIP MATERIAL, IN PARTICULAR FOR AN AUTOMATIC CUTTING MACHINE FOR ETOFFS
EP0337864B1 (en) Improved spectacle frame holder for reproducing machine
FR2687945A1 (en) GENERATION TURNING METHOD AND DEVICE.
EP0477051B1 (en) Device for regulating the neutral line of an electric motor
EP0035939B1 (en) Machine with a rotating implement for copying or finishing operations
EP0342153B1 (en) Auxiliary device for precisely turning a work piece
FR2675786A1 (en) Device for pivoting panels or similar square or rectangular articles passing by in a manufacturing line
FR2654968A1 (en) BORE EXPANSION LAPPING MACHINE.
FR2700131A3 (en) Eccentric disc sander with disc brake.
WO2004060698A1 (en) Hollow shaft electric motor and engraving machine implementing same
FR2568809A1 (en) Machining edges of non-circular ceramic workpieces
EP0506500B1 (en) Device to convert rotary motion into oscillatory motion
FR1254281A (en) Machine tool

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19950130

17Q First examination report despatched

Effective date: 19950411

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960618