EP0028418A1 - Method and apparatus for sawing stones and marble - Google Patents

Method and apparatus for sawing stones and marble Download PDF

Info

Publication number
EP0028418A1
EP0028418A1 EP80106772A EP80106772A EP0028418A1 EP 0028418 A1 EP0028418 A1 EP 0028418A1 EP 80106772 A EP80106772 A EP 80106772A EP 80106772 A EP80106772 A EP 80106772A EP 0028418 A1 EP0028418 A1 EP 0028418A1
Authority
EP
European Patent Office
Prior art keywords
chain
links
axis
cutting
inserts
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.)
Granted
Application number
EP80106772A
Other languages
German (de)
French (fr)
Other versions
EP0028418B1 (en
Inventor
Jean Perrier
Jacques Perrier
Michel Theveniault
Edouard Kurzawski
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.)
Fernand Perrier & Cie Ets SA
Original Assignee
Fernand Perrier & Cie Ets SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9231305&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0028418(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fernand Perrier & Cie Ets SA filed Critical Fernand Perrier & Cie Ets SA
Priority to AT80106772T priority Critical patent/ATE6480T1/en
Publication of EP0028418A1 publication Critical patent/EP0028418A1/en
Application granted granted Critical
Publication of EP0028418B1 publication Critical patent/EP0028418B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/124—Saw chains; rod-like saw blades; saw cables
    • B28D1/125—Saw chains; rod-like saw blades; saw cables with exchangeable cutter bits or cutter segments

Definitions

  • the invention relates to the sawing of stones and marbles, in particular for the extraction of quarries.
  • wear pads consisting of a tungsten carbide base on which is directly formed, by the application of high pressure and high temperature, a layer of synthetic diamond. Such wear pads give extremely interesting results in the working of metals and even relatively abrasive composite materials.
  • the drilling head was provided with helical series of such plates, fixed by brazing at a significant negative cutting angle of the order of 15 ° and used with a cutting speed of 30 to 40 m / s as used. for grinding wheels.
  • the object of the invention is to use diamond carbide wear plates of the above type on the links of a chain for cutting stones or marbles while eliminating the above drawbacks, that is to say in particular heavy wear, overheating and the high cost of restoring tools.
  • the invention consists in working at low speed, from 1.60 to 3 m / s with a small negative cutting angle of 3 to 6 °.
  • the invention also consists in using diamond plates of circular or polygonal shape with multiple symmetries and in mechanically fixing them in one-piece metal links so that they can easily be rotated on themselves by a certain angle at each tool restoration.
  • the invention also consists in mounting in the cutting chain successive sequences each comprising a large number of different links between them in an evolutionary manner so that the geometric axes of the various plates of these links successively occupy the positions corresponding to generators regularly spaced on a half-cone of revolution having for axis the axis of the chain and for half-angle at the top the aforementioned negative cutting angle of 3 to 6 °, so that each insert only works according to a arc reduced from its periphery.
  • the saw chain shown in fig. 1 is of a conventional design, as well as its drive and its guidance which have not been shown. It includes in particular an alternation of tool-carrying links such as la and lb joined together by connecting links 2. in the form of a double yoke of a conventional embodiment.
  • Each of the tool-carrying links is made up of a single piece of steel.
  • this one-piece piece comprises a body 1a, extended at each end by a narrower tab 3a of articulation with the links 2, and surmounted by a cutting head 4a carrying a cutting insert 5a.
  • This plate 5a has a tungsten carbide base covered on its upper working face by a layer of diamond. It can in particular be constituted by the product manufactured by the General Electric Company and sold under the brand name STRATAPAX.
  • a cylindrical shape of revolution is preferably chosen, which allows its mechanical fixing in the head 4a by practicing in the latter a cylindrical counterbore opening at the periphery and in which the plate 5a is exactly embedded, and the latter is locked in place by a locking plate 6a tightened by a locking screw 7.
  • the links lb and lc are identical in all respects to the links except that their plates 5b and 5c are respectively offset slightly to the right for one and to the left for the other.
  • the links ld, le and lf are also identical to the previous ones except that they each have two counterbores to receive two plates respectively 5d to 5f, which are arranged symmetrically and move away from each other gradually while approaching the base.
  • the shape of their heads 4b to 4f and of their clamping plates 6d to 6f naturally evolves accordingly.
  • the nine diamond plates in each sequence of six links are preferably all identical and have been assigned a corresponding index only to refer to their respective positions.
  • each of the nine inserts works only with a limited arc and with a negative cutting angle of 3 to 6 °.
  • This double result is obtained by ensuring that the geometric axis of each insert, that is to say consequently the axis of the corresponding cylindrical counterbore in the head of the corresponding link, meets the axis of the chain, and this at a constant distance from the wafer; on the other hand the angle of offset of each of these axes with respect to the previous one around the axis of the chain is also constant.
  • the chain thus formed is driven at a relatively low linear speed of 1.60 to 3 m / s, which therefore requires only a small motive force, with as a consequence a slight heating only requiring '' a small amount of cooling water.
  • this cutting speed and the low negative cutting angle an extremely reduced wear is obtained which allows working for whole days without having to stop the saw for restoration.
  • it suffices to unlock the locking screws 7a to 7f and to turn the plates on themselves by a reduced angle corresponds in principle to the common length of the arcs 10a to 10f.
  • the saw chain can be reused, considerably reducing and spacing down time lization, which greatly increases production, and therefore greatly reduces the cost price of m 2 sawn compared to traditional means.
  • the half-cone of revolution exposed above could have a more flattened configuration in the direction of advance, and be for example semi-elliptical, by distributing the successive spacings of the axes on this cone so as to have arcs cutting lengths of substantially equal length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Finishing Walls (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Floor Finish (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

1. A method for sawing stone or similar material using a chain saw comprising cutting inserts (5a-5f) of tungsten carbide each fixed by mechanical clamping (6a-6f, 7) in a housing or receptacle with a corresponding cross-section so enabling the insert to be rotated, after being unclamped, through a suitable angle for evening out the wear, characterized in that the chain comprises successive sequences of links each formed by a large number of links (1a, 2, 1b, 2 ... 1f, 2), with the geometrical axes (8a-8f) of these inserts, and therefore of their respective housing, being so positioned as to meet the axis of the chain (9) at a constant distance from the corresponding insert, with each of these axes being angularly offset with respect to the axis of the preceding link by a constant amount round the chain axis, the cutting face or the inserts being coated with synthetic diamond reconstituted in situ by a known method and the inserts being positioned to have a negative cutting angle of 3 to 6 degrees, these inserts having a cylindrical shape of revolution or a polygonal prismatic shape with multiple symmetry.

Description

L'invention concerne le sciage des pierres et marbres, notamment pour l'extraction des carrières.The invention relates to the sawing of stones and marbles, in particular for the extraction of quarries.

Pour réaliser cette opération il est connu d'utiliser une scie à chaîne, mais la chaîne utilisée s'use extrêmement rapidement, même avec des parties coupantes en carbure de tungstène, ce qui oblige constamment à arrêter le travail pour un réaffûtage. Il en résulte une faible productivité et en même temps une grande consommation de plaquettes carbure et de maillons de chaîne sur lesquels ces plaquettes sont en général brasées.To carry out this operation, it is known to use a chain saw, but the chain used wears extremely quickly, even with cutting parts made of tungsten carbide, which constantly forces the work to be stopped for resharpening. This results in low productivity and at the same time a high consumption of carbide inserts and chain links on which these inserts are generally brazed.

Il est connu également d'utiliser des outils à concrétion diamantée, constituée le plus souvent par de petits diamants naturels industriels englobés dans une masse de cuivre ou d'un autre métal. Ces outils nécessitent une grande vitesse de rotation et un effort important, par conséquent une grande dépense d'énergie conduisant à un grand échauffement qui exige un refroidissement permanent. De plus, l'usure des outils reste extrêmement importante compte tenu de leur coût élevé.It is also known to use tools with diamond concretion, most often made up of small natural industrial diamonds embedded in a mass of copper or another metal. These tools require a high speed of rotation and a significant effort, consequently a great expenditure of energy leading to a great heating which requires permanent cooling. In addition, tool wear remains extremely high given their high cost.

Dans l'usinage des métaux, des travaux récents ont permis de mettre au point des plaquettes d'usure constituées par une base en carbure de tungstène sur laquelle est constituée directement, par l'application de haute pression et de haute température, une couche de diamant synthétique. De telles plaquettes d'usure donnent des résultats extrêmement intéressants dans le travail des métaux et même des matériaux composites relativement abrasifs.In metal machining, recent work has made it possible to develop wear pads consisting of a tungsten carbide base on which is directly formed, by the application of high pressure and high temperature, a layer of synthetic diamond. Such wear pads give extremely interesting results in the working of metals and even relatively abrasive composite materials.

On a naturellement essayé d'utiliser ces mêmes plaquettes dans le forage des roches, en particulier pour constituer les trépans de forage. Pour cela la tête de forage était munie de séries hélicoïdales de telles plaquettes, fixées par brasage selon un angle de coupe négatif important de l'ordre de 15° et utilisées avec une vitesse de coupe de 30 à 40 m/s comme on en utilise pour les meules.We have naturally tried to use these same plates in the drilling of rocks, in particular to constitute the drill bits. For this, the drilling head was provided with helical series of such plates, fixed by brazing at a significant negative cutting angle of the order of 15 ° and used with a cutting speed of 30 to 40 m / s as used. for grinding wheels.

Le but de l'invention est d'utiliser des plaquettes d'usure en carbure diamanté du type précédent sur les maillons d'une chaîne de coupe de pierres ou marbres tout en éliminant les inconvénients précédents, c'est-à-dire en particulier l'usure importante, l'échauffement et le coût élevé de restauration des outils.The object of the invention is to use diamond carbide wear plates of the above type on the links of a chain for cutting stones or marbles while eliminating the above drawbacks, that is to say in particular heavy wear, overheating and the high cost of restoring tools.

L'invention consiste à travailler à faible vitesse, de 1,60 a'3 m/s avec un angle de coupe négatif faible de 3 à 6°. L'invention consiste d'autre part à utiliser des plaquettes diamantées de forme circulaire ou polygonale à symétries multiples et à les fixer mécaniquement dans des maillons métalliques monoblocs de manière à pouvoir facilement les faire tourner sur elles-mêmes d'un certain angle à chaque restauration d'outillage. Enfin, l'invention consiste également à monter dans la chaîne de coupe des séquences successives comportant chacune un grand nombre de maillons différents entre eux d'une façon évolutive de manière que les axes géométriques des diverses plaquettes de ces maillons occupent successivement les positions correspondant à des génératrices régulièrement espacées sur un demi-cône de révolution ayant pour axe l'axe de la chaîne et pour demi-angle au sommet l'angle négatif de coupe précité de 3 à 6°, de sorte que chaque plaquette ne travaille que selon un arc réduit de sa périphérie.The invention consists in working at low speed, from 1.60 to 3 m / s with a small negative cutting angle of 3 to 6 °. The invention also consists in using diamond plates of circular or polygonal shape with multiple symmetries and in mechanically fixing them in one-piece metal links so that they can easily be rotated on themselves by a certain angle at each tool restoration. Finally, the invention also consists in mounting in the cutting chain successive sequences each comprising a large number of different links between them in an evolutionary manner so that the geometric axes of the various plates of these links successively occupy the positions corresponding to generators regularly spaced on a half-cone of revolution having for axis the axis of the chain and for half-angle at the top the aforementioned negative cutting angle of 3 to 6 °, so that each insert only works according to a arc reduced from its periphery.

D'autres particularités de l'invention apparaîtront dans la description qui va suivre d'un mode de réalisation pris comme exemple et représenté sur le dessin annexé, sur lequel :

  • la fig. 1 représente, vu de profil, un fragment de la chaîne de coupe;
  • les fig. 2a à 2f représentent respectivement vu en bout les divers maillons d'une séquence;
  • les fig. 3a à 3f représentent respectivement ces mêmes maillons vus de dessus;
  • la fig. 4 représente à grande échelle la section du fond du trait de sciage obtenu.
Other features of the invention will appear in the following description of an embodiment taken as an example and shown in the attached drawing, in which:
  • fig. 1 represents, seen in profile, a fragment of the cutting chain;
  • fig. 2a to 2f represent respectively seen at the end the various links of a sequence;
  • fig. 3a to 3f respectively represent these same links seen from above;
  • fig. 4 shows on a large scale the bottom section of the saw cut obtained.

La chaîne de sciage représentée sur la fig. 1 est d'une conception classique, ainsi que son entraînement et son guidage qui n'ont pas été représentés. Elle comporte notamment une alternance de maillons porte-outils tels que la et lb réunis entre eux par des maillons de liaison 2.en forme de double chape d'une réalisation classique.The saw chain shown in fig. 1 is of a conventional design, as well as its drive and its guidance which have not been shown. It includes in particular an alternation of tool-carrying links such as la and lb joined together by connecting links 2. in the form of a double yoke of a conventional embodiment.

Chacun des maillons porte-outils est constitué par une pièce d'acier monobloc. Par exemple pour le premier maillon d'une séquence cette pièce monobloc comporte un corps la, prolongé à chaque extrémité par une patte plus étroite 3a d'articulation avec les maillons 2, et surmonté par une tête de coupe 4a portant une plaquette de coupe 5a.Each of the tool-carrying links is made up of a single piece of steel. For example, for the first link in a sequence, this one-piece piece comprises a body 1a, extended at each end by a narrower tab 3a of articulation with the links 2, and surmounted by a cutting head 4a carrying a cutting insert 5a.

Cette plaquette 5a comporte une base en carbure de tungstène recouverte sur sa face supérieure de travail par une couche de diamant. Elle peut en particulier être constituée par le produit fabriqué par la Société General Electric et vendu sous le nom de marque STRATAPAX. Conformément à l'invention on choisit de préférence une forme cylindrique de révolution, ce qui permet sa fixation mécanique dans la tête 4a en pratiquant dans celle-ci un lamage cylindrique débouchant à la périphérie et dans lequel la plaquette 5a vient exactement s'enchâsser, et celle-ci se trouve bloquée en place par une plaque de blocage 6a serrée par une vis de blocage 7.This plate 5a has a tungsten carbide base covered on its upper working face by a layer of diamond. It can in particular be constituted by the product manufactured by the General Electric Company and sold under the brand name STRATAPAX. In accordance with the invention, a cylindrical shape of revolution is preferably chosen, which allows its mechanical fixing in the head 4a by practicing in the latter a cylindrical counterbore opening at the periphery and in which the plate 5a is exactly embedded, and the latter is locked in place by a locking plate 6a tightened by a locking screw 7.

Les maillons lb et lc sont en tous points identiques aux maillons la sauf que leurs plaquettes 5b et 5c sont respectivement déportées légèrement vers la droite pour l'un et vers la gauche pour l'autre. Enfin, les maillons ld, le et lf sont également identiques aux précédentes sauf qu'ils comportent chacun deux lamages pour recevoir deux plaquettes respectivement 5d à 5f, qui sont disposées symétriquement et vont en s'écartant progressivement tout en se rapprochant de la base. La forme de leurs têtes 4b à 4f et de leurs plaques de serrage 6d à 6f évolue naturellement en conséquence.The links lb and lc are identical in all respects to the links except that their plates 5b and 5c are respectively offset slightly to the right for one and to the left for the other. Finally, the links ld, le and lf are also identical to the previous ones except that they each have two counterbores to receive two plates respectively 5d to 5f, which are arranged symmetrically and move away from each other gradually while approaching the base. The shape of their heads 4b to 4f and of their clamping plates 6d to 6f naturally evolves accordingly.

Les neuf plaquettes diamantées de chaque séquence de six maillons sont de préférence toutes identiques et on ne les a affectées d'un indice correspondant que pour faire référence à leurs positions respectives.The nine diamond plates in each sequence of six links are preferably all identical and have been assigned a corresponding index only to refer to their respective positions.

En effet, conformément à l'invention chacune des neuf plaquettes ne travaille que selon un arc limité et avec un angle de coupe négatif de 3 à 6°. Ce double résultat est obtenu en faisant en sorte que l'axe géométrique de chaque plaquette, c'est-à-dire par conséquent l'axe du lamage cylindrique correspondant dans la tête du maillon correspondant, rencontre l'axe de la chaîne, et ceci à une distance constante de la plaquette; d'autre part l'angle de décalage de chacun de ces axes par rapport au précédent autour de l'axe de la chaîne est également constant.Indeed, in accordance with the invention each of the nine inserts works only with a limited arc and with a negative cutting angle of 3 to 6 °. This double result is obtained by ensuring that the geometric axis of each insert, that is to say consequently the axis of the corresponding cylindrical counterbore in the head of the corresponding link, meets the axis of the chain, and this at a constant distance from the wafer; on the other hand the angle of offset of each of these axes with respect to the previous one around the axis of the chain is also constant.

Pour mieux comprendre cette géométrie, il suffit de supposer par la pensée que l'on superpose géométriquement les six maillons et leurs plaquettes à une même position de maillons par translation le long de l'axe de la chaîne. Dans ce cas, les divers axes 8a à 8f des plaquettes et des lamages, comme représentés sur la fig. 4, sont tous concourants en un point unique 9 situé à une distance du plan commun de coinci- dence des diverses plaquettes qui est déterminée de manière que l'angle aigü formé par chacun de ces axes avec l'axe de la chaîne soit égal à l'angle d'incidence négative souhaitée, c'est-à-dire de 3 à 6°. Il en résulte par conséquent que les neuf axes 8a à 8f se trouvent tous disposés selon des génératrices d'un demi-cône de révolution axé sur l'axe de la chaîne. En outre, en vertu de la deuxième condition, ces axes sont équidistants sur ce cône.To better understand this geometry, it suffices to assume by thinking that we geometrically superimpose the six links and their plates in the same position of links by translation along the axis of the chain. In this case, the various axes 8a to 8f of the plates and counterbores, as shown in FIG. 4, are all concurrent at a single point 9 located at a distance from the common plane of coincidence of the various plates which is determined so that the acute angle formed by each of these axes with the axis of the chain is equal at the desired negative angle of incidence, i.e. 3 to 6 °. It therefore follows that the nine axes 8a to 8f are all arranged along generatrices of a half-cone of revolution centered on the axis of the chain. In addition, by virtue of the second condition, these axes are equidistant on this cone.

Grâce à cela, on obtient comme représenté sur la fig. 4 que les divers arcs 10a à lOf, selon lesquels les plaquettes correspondantes 5a à 5f travaillent, sont tous des arcs égaux et de faible étendue régulièrement répartis selon un demi- cercle ondulé. L'ensemble de la figure représente la forme du fond du trait de sciage produit par la scie dans la masse de pierre désignée par 11, l'avance de la scie se faisant naturellement dans le sens de la flèche 12 qui est le plan de circulation de la chaîne de la manière usuelle. Pour cette raison les arcs latéraux 10f se prolongent en réalité vers l'arrière par les tangentes 13 parallèles à 12.Thanks to this, we obtain as shown in FIG. 4 that the various arcs 10a to 10f, according to which the corresponding plates 5a to 5f work, are all equal arcs of small extent regularly distributed in a wavy semicircle. The whole of the figure represents the shape of the bottom of the saw cut produced by the saw in the mass of stone designated by 11, the advance of the saw taking place naturally in the direction of arrow 12 which is the circulation plane of the chain in the usual way. For this reason, the lateral arcs 10f actually extend backwards by the tangents 13 parallel to 12.

Conformément à l'invention, la chaîne ainsi constituée est entraînée à une vitesse linéaire relativement faible de 1,60 à 3 m/s, ce qui ne nécessite par conséquent qu'une faible force motrice, avec comme conséquence un faible échauffement ne nécessitant qu'une faible quantité d'eau de refroidissement. En outre, grâce à cette vitesse de coupe et à l'angle de coupe négatif faible, on obtient une usure extrêmement réduite qui permet de travailler des journées entières sans avoir à arrêter la scie pour une restauration. Enfin, lorsqu'une telle restauration s'avère nécessaire, il suffit de débloquer les vis de blocage 7a à 7f et de tourner les plaquettes sur elles-mêmes d'un angle réduit correspond en principe à la longueur commune des arcs 10a à lOf. Après reblocage des vis de blocage, la chaîne de sciage peut être réutilisée en réduisant et en espacant considérablement les temps d'immobilisation, ce qui augmente beaucoup la production, et de ce fait diminue fortement le prix de revient du m2 scié par rapport aux moyens traditionnels.According to the invention, the chain thus formed is driven at a relatively low linear speed of 1.60 to 3 m / s, which therefore requires only a small motive force, with as a consequence a slight heating only requiring '' a small amount of cooling water. In addition, thanks to this cutting speed and the low negative cutting angle, an extremely reduced wear is obtained which allows working for whole days without having to stop the saw for restoration. Finally, when such a restoration proves necessary, it suffices to unlock the locking screws 7a to 7f and to turn the plates on themselves by a reduced angle corresponds in principle to the common length of the arcs 10a to 10f. After re-locking the locking screws, the saw chain can be reused, considerably reducing and spacing down time lization, which greatly increases production, and therefore greatly reduces the cost price of m 2 sawn compared to traditional means.

Bien entendu, le même résultat pourrait être atteint si, au lieu d'utiliser une forme entièrement de révolution pour les plaquettes, on leur donnait une forme polygonale ou à symétries multiples, par exemple hexagonale, permettant de les monter dans un certain nombre de positions différentes. Dans ce cas, l'alvéole de logement de chaque plaquette dans les têtes des maillons serait plus délicat à réaliser, mais.pourrait être fraisé en bout en utilisant pour les sommets de la plaquette des angles arrondis d'une manière connue.Of course, the same result could be achieved if, instead of using an entirely revolution shape for the inserts, they were given a polygonal shape or with multiple symmetries, for example hexagonal, allowing them to be mounted in a certain number of positions different. In this case, the cell for housing each plate in the heads of the links would be more difficult to produce, but could be milled at the end using rounded corners in a known manner for the tops of the plate.

En variantes, le demi-cône de révolution exposé plus haut pourrait avoir une configuration plus aplatie dans le sens de l'avance, et être par exemple semi-elliptique, en répartissant les écartements successifs des axes sur ce cône de manière à avoir des arcs de coupe de longueurs sensiblement égales.In variants, the half-cone of revolution exposed above could have a more flattened configuration in the direction of advance, and be for example semi-elliptical, by distributing the successive spacings of the axes on this cone so as to have arcs cutting lengths of substantially equal length.

Claims (5)

1. Procédé de sciage de pierres ou similaire à l'aide d'une scie à chaîne comportant des plaquettes de coupe en carbure de tungstène rapportées, caractérisé par le fait que la face de coupe de ces plaquettes de coupe en carbure de tungstène est revêtue de diamant synthétique reconstitué sur place selon un procédé connu, et que ces plaquettes sont disposées pour avoir un angle de coupe négatif de 3 à 6°.1. A method of sawing stones or the like using a chain saw comprising added tungsten carbide cutting inserts, characterized in that the cutting face of these tungsten carbide cutting inserts is coated of synthetic diamond reconstituted on site according to a known process, and that these plates are arranged to have a negative cutting angle of 3 to 6 °. 2. Procédé selon la revendication 1, caractérisé par le fait que les plaquettes ont une forme cylindrique de révolution, ou prismatique polygonale à symétries multiples, et qu'elles sont fixées chacune par blocage mécanique dans un alvéole de section correspondante de manière à permettre, après déblocage, la rotation de la plaquette d'un angle approprié pour répartir l'usure.2. Method according to claim 1, characterized in that the plates have a cylindrical shape of revolution, or prismatic polygonal with multiple symmetries, and that they are each fixed by mechanical locking in a cell of corresponding section so as to allow, after release, the rotation of the insert by an appropriate angle to distribute the wear. 3. Procédé selon la revendication 2, caractérisé par le fait que la chaîne comporte des séquences successives de maillons formées chacune par un nombre important de maillons, les axes géométriques des diverses plaquettes, et par conséquent de leurs alvéoles respectifs, étant positionnés de manière à rencontrer l'axe de la chaîne à une distance constante par rapport à la plaquette correspondante, chacun de ces axes étant décalé par rapport à l'axe du maillon précédent d'une quantité constante autour de l'axe de la chaîne.3. Method according to claim 2, characterized in that the chain comprises successive sequences of links each formed by a large number of links, the geometric axes of the various plates, and therefore of their respective cells, being positioned so as to meet the axis of the chain at a constant distance from the corresponding plate, each of these axes being offset from the axis of the previous link by a constant amount around the axis of the chain. 4. Chaîne de sciage de pierres ou similaires pour la mise en oeuvre du procédé selon la revendication 2, et comportant des maillons successifs dont certains au moins portent des outils de coupe, caractérisée par le fait que chacun des maillons porte-outils est réalisé en une seule pièce massive avec une tête porte-outils dans laquelle est usiné un ou plusieurs lamages de forme circulaire ou polygonale constituant chacun l'alvéole destiné à recevoir une des plaquettes de coupe et débouchant à la périphérie pour dégager au moins l'arc de coupe de cette plaquette, les axes de ces lamages rencontrant l'axe de la chaîne selon l'angle négatif de coupe précité de 3 à 6°, une plaque de pression et une'vis de blocage permettant de bloquer la ou les plaquettes dans leur alvéole.4. Chain for sawing stones or the like for implementing the method according to claim 2, and comprising successive links, at least some of which carry cutting tools, characterized in that each of the tool-carrying links is made of a single solid piece with a tool head in which is machined one or more counterbores of circular or polygonal shape each constituting the cell intended to receive one of the cutting inserts and opening at the periphery to release at least the cutting arc of this plate, the axes of these counterbores meeting the axis of the chain according to the aforementioned negative cutting angle of 3 to 6 °, a pressure plate and a blocking screw making it possible to block the plate (s) in their cell . 5. Chaîne de sciage selon la revendication 4 pour la mise en oeuvre du procédé selon la revendication 3, caractérisée par le fait qu'elle comporte des séquences successives de maillons de forme évolutive et que les axes géométriques des diverses plaquettes ou alvéoles, supposés ramenés au niveau d'un même maillon par translation selon l'axe de la chaîne, sont disposés selon des génératricès régulièrement espacées d'un demi-cône de révolution dont le demi-angle au sommet est égal à l'angle de coupe négative précité de 3 à 6°.5. Saw chain according to claim 4 for the implementation of the method according to claim 3, characterized in that it comprises successive sequences of links of progressive shape and that the geometric axes of the various plates or cells, assumed to be brought back at the same link by translation along the axis of the chain, are arranged according to generatricès regularly spaced by a half-cone of revolution whose half-angle at the top is equal to the aforementioned negative cutting angle of 3 to 6 °.
EP80106772A 1979-11-05 1980-11-04 Method and apparatus for sawing stones and marble Expired EP0028418B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106772T ATE6480T1 (en) 1979-11-05 1980-11-04 METHOD AND DEVICE FOR SAWING STONE AND MARBLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7927255A FR2468452A1 (en) 1979-11-05 1979-11-05 PROCESS AND DEVICE FOR SAWING STONES AND MARBLE
FR7927255 1979-11-05

Publications (2)

Publication Number Publication Date
EP0028418A1 true EP0028418A1 (en) 1981-05-13
EP0028418B1 EP0028418B1 (en) 1984-03-07

Family

ID=9231305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106772A Expired EP0028418B1 (en) 1979-11-05 1980-11-04 Method and apparatus for sawing stones and marble

Country Status (7)

Country Link
EP (1) EP0028418B1 (en)
JP (1) JPS57169310A (en)
AT (1) ATE6480T1 (en)
DE (1) DE3066867D1 (en)
ES (1) ES8107083A1 (en)
FR (1) FR2468452A1 (en)
PT (1) PT72023B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3304275A1 (en) * 1982-02-08 1983-08-18 Luigi Villa Adriana Tivoli Fantini Machine cutting chain for cutting rock in a travertine quarry or the like, with removable cutting bits in a number of working positions
US4827821A (en) * 1986-11-10 1989-05-09 Omark Industries, Inc. Cutting chain
EP0320456A2 (en) * 1987-12-11 1989-06-14 W.F. Meyers Company, Inc. Belt-configured saw for cutting slots into stones
EP0571344A1 (en) * 1992-05-21 1993-11-24 Cesare Polidori Device for clamping an exchangeable cutting bit for machining stone-like materials
EP0625416A1 (en) * 1993-05-21 1994-11-23 De Beers Industrial Diamond Division (Proprietary) Limited Saw chain cutter link
US5556831A (en) * 1991-11-29 1996-09-17 Alactel Alsthom Compagnie Generale D'electricite Method of treating a part made of a superconductive ceramic of the (Ln).sub. Ba2 Cu3 O7-δ type
EP1155796A1 (en) * 2000-05-18 2001-11-21 Riccardo Belotti Stone cutting tool
EP2324976A1 (en) 2009-11-19 2011-05-25 Nv Pmds Sa Shearer chain and shearer
WO2012032009A1 (en) 2010-09-06 2012-03-15 P.M.D.S. P. Marchandise Diamant Service Rock cutter chain and rock cutter
ITBS20120099A1 (en) * 2012-06-29 2013-12-30 Apns Di Pasqualato Paolo Mario CUTTING CHAIN FOR STONE MATERIALS
IT202000001606A1 (en) 2020-01-28 2021-07-28 Fabio Bigini IMPROVED CHAIN CUTTING AND CUTTING TOOL FOR STONE AND SIMILAR MATERIALS

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368092A (en) * 1943-12-30 1945-01-30 Contour Saws Saw band for hard refractory materials
GB644726A (en) * 1947-07-08 1950-10-18 Gaston Lemoine A saw for cutting stone or the like hard material
FR1016336A (en) * 1950-04-15 1952-11-07 Machine for sawing stones in particular
FR1019251A (en) * 1950-03-25 1953-01-20 Stone sawing machine
FR60383E (en) * 1950-06-10 1954-11-02 Endless blade saw
FR1231267A (en) * 1959-05-29 1960-09-28 Arrangement of diamonds on discs for sawing various materials
US3311415A (en) * 1964-10-19 1967-03-28 Alaskaug Inc Stone saw with pulsed feed for chain cutter
FR2256796A1 (en) * 1974-01-07 1975-08-01 Ugine Carbone Interlocking links for chain saw - spigot on one link engages keyhole in next, forming flush assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232378Y2 (en) * 1971-04-08 1977-07-23
JPS5155077A (en) * 1974-11-07 1976-05-14 Kobe Steel Ltd SAAFUEESUBUROOCHI

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368092A (en) * 1943-12-30 1945-01-30 Contour Saws Saw band for hard refractory materials
GB644726A (en) * 1947-07-08 1950-10-18 Gaston Lemoine A saw for cutting stone or the like hard material
FR1019251A (en) * 1950-03-25 1953-01-20 Stone sawing machine
FR1016336A (en) * 1950-04-15 1952-11-07 Machine for sawing stones in particular
FR60383E (en) * 1950-06-10 1954-11-02 Endless blade saw
FR1231267A (en) * 1959-05-29 1960-09-28 Arrangement of diamonds on discs for sawing various materials
US3311415A (en) * 1964-10-19 1967-03-28 Alaskaug Inc Stone saw with pulsed feed for chain cutter
FR2256796A1 (en) * 1974-01-07 1975-08-01 Ugine Carbone Interlocking links for chain saw - spigot on one link engages keyhole in next, forming flush assembly

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3304275A1 (en) * 1982-02-08 1983-08-18 Luigi Villa Adriana Tivoli Fantini Machine cutting chain for cutting rock in a travertine quarry or the like, with removable cutting bits in a number of working positions
US4827821A (en) * 1986-11-10 1989-05-09 Omark Industries, Inc. Cutting chain
EP0320456A2 (en) * 1987-12-11 1989-06-14 W.F. Meyers Company, Inc. Belt-configured saw for cutting slots into stones
EP0320456A3 (en) * 1987-12-11 1990-11-22 W.F. Meyers Company, Inc. Belt-configured saw for cutting slots into stones having a polycrystalline diamond cutting surface
US5556831A (en) * 1991-11-29 1996-09-17 Alactel Alsthom Compagnie Generale D'electricite Method of treating a part made of a superconductive ceramic of the (Ln).sub. Ba2 Cu3 O7-δ type
EP0571344A1 (en) * 1992-05-21 1993-11-24 Cesare Polidori Device for clamping an exchangeable cutting bit for machining stone-like materials
EP0625416A1 (en) * 1993-05-21 1994-11-23 De Beers Industrial Diamond Division (Proprietary) Limited Saw chain cutter link
EP1155796A1 (en) * 2000-05-18 2001-11-21 Riccardo Belotti Stone cutting tool
EP2324976A1 (en) 2009-11-19 2011-05-25 Nv Pmds Sa Shearer chain and shearer
BE1019003A3 (en) * 2009-11-19 2011-12-06 Pmds Sa Nv CHAIN OF HAVEUSE AND HAVEUSE.
WO2012032009A1 (en) 2010-09-06 2012-03-15 P.M.D.S. P. Marchandise Diamant Service Rock cutter chain and rock cutter
BE1019468A3 (en) * 2010-09-06 2012-07-03 P Marchandise Diamant Service P M D S ROCKER HAIR CHAIN WITH TOOL HOLDER, METHOD FOR MANUFACTURING SAME AND HAIR.
ITBS20120099A1 (en) * 2012-06-29 2013-12-30 Apns Di Pasqualato Paolo Mario CUTTING CHAIN FOR STONE MATERIALS
IT202000001606A1 (en) 2020-01-28 2021-07-28 Fabio Bigini IMPROVED CHAIN CUTTING AND CUTTING TOOL FOR STONE AND SIMILAR MATERIALS
EP3858566A1 (en) 2020-01-28 2021-08-04 Bigini, Fabio Cutting tool and chain cutting machine for stones and similar material

Also Published As

Publication number Publication date
EP0028418B1 (en) 1984-03-07
ATE6480T1 (en) 1984-03-15
ES497023A0 (en) 1981-10-01
DE3066867D1 (en) 1984-04-12
JPS57169310A (en) 1982-10-19
FR2468452A1 (en) 1981-05-08
PT72023B (en) 1981-12-17
FR2468452B1 (en) 1982-10-22
PT72023A (en) 1980-12-01
ES8107083A1 (en) 1981-10-01

Similar Documents

Publication Publication Date Title
EP0218856B1 (en) T-groove milling cutter
JP3260764B2 (en) Cutting tools with patterned cutting surfaces
EP0028418B1 (en) Method and apparatus for sawing stones and marble
JP6499410B2 (en) Power skiving tools and cutting inserts
CA2643830C (en) Stone saw blade
CA2735358A1 (en) Planar cutting tool and associated tool holder
KR20000068547A (en) Flat-surface Milling machine
JPS58132417A (en) Tool cutting and machining tooth surface
JP3698207B2 (en) Replaceable tip
EP3003619A1 (en) Rotary cutting tool having a cutting edge made of multiple materials
EP2613918B1 (en) Shearer chain and shearer
EP0359594B1 (en) Tool for routening polycarbonate spectacle glasses in a conventional grinding machine
FR2691089A1 (en) Method for generating precision work tools in the form of toothed wheels, in particular for scraping wheel grinding, and toothed wheel tool.
JP2005199428A5 (en)
JP2005199428A (en) Blade exchanging type chip and fixing structure for round chip
EP1499469A1 (en) Method for grooving the bore of a tube and grooving tool-holder
BE1000949A3 (en) Rotary stone-cutting tool - comprises abrasive disc with teeth recessed into edge shaping natural stone
EP0627969A1 (en) Hopping method and device by means of a milling knife.
FR2643583A1 (en) Device for cutting hard materials
JP2000061728A (en) Cutting tool to chamfer hole inlet and outlet
EP4005763A1 (en) Planing tool of a planing milling machine
EP3626376A1 (en) Hob cutter for producing timepiece toothed wheels
EP1285716A1 (en) Machining by a generating method
CH715379A2 (en) Hob for the manufacture of clockwork cogwheels.
EP2521831A1 (en) Rotary drill and method for the production thereof

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

Designated state(s): AT BE CH DE GB IT LU NL SE

ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO MILANO S.P.A.

TCAT At: translation of patent claims filed
17P Request for examination filed

Effective date: 19811028

DET De: translation of patent claims
TCNL Nl: translation of patent claims filed
ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 6480

Country of ref document: AT

Date of ref document: 19840315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3066867

Country of ref document: DE

Date of ref document: 19840412

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19841122

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19841126

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19841130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19841130

Year of fee payment: 5

Ref country code: CH

Payment date: 19841130

Year of fee payment: 5

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19841231

Year of fee payment: 5

Ref country code: BE

Payment date: 19841231

Year of fee payment: 5

26 Opposition filed

Opponent name: MASCHINENFABRIK KORFMANN GMBH

Effective date: 19841130

NLR1 Nl: opposition has been filed with the epo

Opponent name: MASCHINENFABRIK KORFMANN GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19851104

Ref country code: AT

Effective date: 19851104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19851105

BERE Be: lapsed

Owner name: ETS FERNAND PERRIER & CIE

Effective date: 19851130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860601

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19860628

EUG Se: european patent has lapsed

Ref document number: 80106772.9

Effective date: 19860805

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO