EP0069106A1 - Machine for sawing stone blocks - Google Patents
Machine for sawing stone blocks Download PDFInfo
- Publication number
- EP0069106A1 EP0069106A1 EP82870034A EP82870034A EP0069106A1 EP 0069106 A1 EP0069106 A1 EP 0069106A1 EP 82870034 A EP82870034 A EP 82870034A EP 82870034 A EP82870034 A EP 82870034A EP 0069106 A1 EP0069106 A1 EP 0069106A1
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- EP
- European Patent Office
- Prior art keywords
- saw blades
- saw
- blades
- machine according
- sawing machine
- 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.)
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- 239000004575 stone Substances 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 14
- 230000001154 acute effect Effects 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims 2
- OGPIIGMUPMPMNT-UHFFFAOYSA-M sodium meclofenamate (anhydrous) Chemical compound [Na+].CC1=CC=C(Cl)C(NC=2C(=CC=CC=2)C([O-])=O)=C1Cl OGPIIGMUPMPMNT-UHFFFAOYSA-M 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
- B28D1/066—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades the workpieces being moved in a horizontal plane, e.g. with vertically or oblique movable saw-blades
Definitions
- the invention relates to a machine for sawing particularly hard stones comprising two parallel saw blades stretched on either side of a chassis driven by a substantially vertical oscillating movement.
- a sawing machine comprising one or more saw blades driven by a rectilinear or oscillating reciprocating movement.
- the saw blades used are either steel blades sprinkled with water carrying an abrasive such as sand, steel shot, or grains of silicon carbide, or blades with diamond segments.
- Some of these machines have only one blade driven by an oscillating movement with a horizontal axis, with horizontal advance of the block to be sawed.
- the saw blade is tensioned in a frame to prevent it from being deflected during sawing. It is advantageous to place the saw blade laterally, so as not to limit the width of the block to be sawed.
- Machines comprising several saw blades are also known.
- the various saw blades are stretched parallel in a frame and the latter is animated by a vertical rectilinear reciprocating movement or by an oscillating movement with a horizontal axis, with horizontal advance of the block to be sawed.
- the distance between the blades is chosen so as to saw slices of desired thickness.
- the obvious advantage of this type of machine is that a series of- slices can be sawed in a single sawing operation.
- the object of the present invention is to remedy the aforementioned drawbacks by producing a sawing machine with two saw blades allowing the simultaneous sawing of two slices of thickness arbitrarily chosen in two independent blocks placed on either side of the machine. This produces a symmetrical, fast and economical machine.
- the object of the invention is a sawing machine for stones essentially comprising an oscillating frame provided with two saw blades and means making it possible to advance the blocks to be sawed horizontally.
- Said chassis pivotally mounted about a horizontal axis, is symmetrical with respect to a vertical plane perpendicular to said horizontal axis.
- Said frame is capable of carrying two saw blades located in two planes perpendicular to said horizontal pivot axis on either side of said frame.
- the wire of the two saw blades has an arcuate shape, the center of which coincides with the horizontal pivot axis.
- Each of the ends of the saw blades is fixed by fastening parts integral with the chassis and arranged in cantilever on either side thereof; these fasteners are equipped with means capable of fixing the ends of the saw blades and putting them under tension.
- the sawing machine further comprises means capable of animating the said chassis with an oscillating movement around the said horizontal pivot axis, so that the longitudinal axis of the saw blades forms an acute angle at all times. compared to the vertical.
- means of transport capable of advancing the blocks of stone horizontally and parallel to the planes of the saw blades in the direction of the latter.
- Means for adjusting the position of the two blocks on said transport means relative to the planes of the respective saw blades are also provided.
- said frame assumes the shape of a right prism with a triangular base formed of metal beams arranged along the edges of said prism and assembled by means known per se; the said horizontal pivot axis is located parallel to and near a prism edge perpendicular to the said triangular base, and the longitudinal axis of each of the two saw blades merges with the plane formed by the face of the prism opposite to the says hori axis pivoting zontal.
- a frame guiding device is provided in the vicinity of the saw blades, so as to prevent any lateral deviation of the saw blades.
- said guide device consists of metal plates fixed parallel to the planes of the saw blades against a concrete block placed between the saw blades, and the frame is fitted with rollers located on either side of the concrete block, so as to roll without play on said metal plates.
- said means capable of animating said chassis with a movement oscillating around said horizontal pivot axis consist of a rod-crank system driven by an electric motor by means of a speed reduction device.
- the wire of the saw blades comprises diamond segments, and one can advantageously provide for the other edge of each blade a concave curved shape, so as to distribute the tension forces in the blade.
- said means for fixing the ends of the saw blades to said frame are provided to apply to them tensions in oblique directions relative to the longitudinal axis of the saw blades, in such a way that there appears in each saw blade a tension component perpendicular to the wire of the blades.
- the said means making it possible to apply to each saw blade oblique tensions relative to the longitudinal axis of this blade consist of a system of adjustable screws and locknuts whose axes are located in the plane of this blade by forming with the longitudinal axis of the blade an acute angle towards the outside.
- the said means of transport capable of advancing the blocks of stone towards the saw blades consist of two carriages placed on either side of the machine on horizontal rails parallel to the planes of the saw blades, the advance speed of each of the carriages being adjustable.
- Said means for adjusting the position of the blocks on the transport means are known per se and can advantageously consist of two cylinders integral with said transport means and two measuring fingers.
- the chassis of the sawing machine shown in FIG. 1 affects the shape of a right prism with a triangular base formed of metal beams 1 to 5 arranged along the edges of said prism and assem by means known per se.
- a horizontal pivot axis 6 secured to a bearing 7 and located along an edge of the prism perpendicular to said triangular base of this prism allows the chassis to pivot.
- the face of the prism opposite to said horizontal pivot axis 6 is provided for carrying two saw blades 8, biconcaves and with diamond segments, situated in two planes perpendicular to said horizontal pivot axis 6 on either side of the chassis.
- the wire of the two saw blades 8 has an arcuate shape, the center of which coincides with the said horizontal pivot axis 6.
- Each of the ends of the saw blades 8 is fixed to fixing pieces 9 integral with the ends of the two horizontal crosspieces 4 and 5 forming the edges of the prism opposite and parallel to said horizontal pivot axis 6; the fasteners 9 are themselves arranged cantilevered on either side of the chassis.
- a system of screws and locknuts 10 mounted on said fixing pieces 9 makes it possible to put the saw blades 8 under tension, by means of connecting members 11 and studs 12, the longitudinal axes of said screws.
- attachment 10 of each blade 8 being located in the plane of this blade by forming with the longitudinal axis of the blade 8 a certain angle towards the outside.
- the upper horizontal cross member 4 is provided with an anchoring lug to which the upper end of a connecting rod 13 which is part of an alternative drive system comprising an electric motor 14 provided with a pinion 15 is fixed.
- the arrangement of the bearings 7 and 19, of the crank 18 and of the connecting rod 13 is such that the longitudinal axis of the saws 8 always remains inclined relative to the vertical in the direction opposite to that of the advance.
- the bearing 7 is placed so that the horizontal pivot axis 6 is located slightly above ground level, and a pit 20 is arranged in the ground between said bearing 7 and the alternative drive system, to allow the lower beams of the chassis and the lower horizontal cross-member 5 to oscillate freely.
- means of transport consisting of two horizontal railway tracks 21 parallel to the planes of the saw blades 8 and two carriages 22 capable of each carrying a block of stone 23.
- the sawing machine shown in FIG. 2 comprises a guide device intended to prevent any horizontal movement of the chassis.
- a concrete block 24 is placed between the metal beams 1 and 2 of the machine, and carries two metal plates 25 on each of its lateral faces.
- the concrete block is placed as a bridge over the pit 20 so as to provide sufficient space for the lower horizontal cross member 5.
- rollers 28 are fixed to the vertical beams 1 and 2 by means of supports 29 bolted to the said vertical beams.
- One of the important advantages provided by the invention resides in the fact that it combines the simplicity and the ease of operation of machines with a single blade with the symmetry and the balancing of the tensions of machines with several blades.
- the machine according to the invention makes it possible to simultaneously saw two different blocks, of different dimensions, and even of different materials, according to slices of thickness arbitrarily chosen.
- Another advantage of the invention is that it makes it very easy to modify the thickness of the sawn slices by simply adjusting the position of the blocks on the means of transport: In view of the simplicity of this operation of adjusting the thickness of the slice, slices of any thickness can be sawn economically.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Sawing (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
L'invention a pour objet une machine pour le sciage de pierres particulièrement dures comportant deux lames de scie parallèles tendues de part et d'autre d'un châssis animé d'un mouvement oscillant sensiblement vertical.The invention relates to a machine for sawing particularly hard stones comprising two parallel saw blades stretched on either side of a chassis driven by a substantially vertical oscillating movement.
Pour le sciage de pierres dures telles que les granits, il est connu d'utiliser une machine de sciage comportant une ou plusieurs lames de scie animées d'un mouvement alternatif rectiligne ou oscillant. Les lames de scie utilisées sont soit des lames d'acier arrosées par de l'eau véhiculant un abrasif tel que du sable, de la grenaille d'acier, ou des grains de carbure de silicium, soit des lames à segments diamantés.For sawing hard stones such as granite, it is known to use a sawing machine comprising one or more saw blades driven by a rectilinear or oscillating reciprocating movement. The saw blades used are either steel blades sprinkled with water carrying an abrasive such as sand, steel shot, or grains of silicon carbide, or blades with diamond segments.
Certaines de ces machines ne comportent qu'une seule lame animée d'un mouvement d'oscillation à axe horizontal, avec avance horizontale du bloc à scier. La lame de scie est tendue dans un cadre de manière à l'empêcher de subir des déviations pendant le sciage. Il est avantageux de placer la lame de scie latéralement, de manière à ne pas limiter la largeur du bloc à scier.Some of these machines have only one blade driven by an oscillating movement with a horizontal axis, with horizontal advance of the block to be sawed. The saw blade is tensioned in a frame to prevent it from being deflected during sawing. It is advantageous to place the saw blade laterally, so as not to limit the width of the block to be sawed.
L'inconvénient majeur de ces machines est qu'on ne peut scier qu'une tranche à la fois, ce qui rend l'opération de sciage très lente et coûteuse. Un autre inconvénient provient de la disposition asymétrique de la lame de scie dans le cadre, ce qui produit un mauvais équilibrage des tensions dans la machine et peut dès lors créer des déviations pendant le sciage.The major drawback of these machines is that you can only saw one slice at a time, which makes the sawing operation very slow and expensive. Another disadvantage comes from the asymmetrical arrangement of the saw blade in the frame, which produces poor balancing of the tensions in the machine and can therefore create deviations during sawing.
Des machines comportant plusieurs lames de scie sont également connues. Les diverses lames de scie sont tendues parallèlement dans un cadre et celui-ci est animé d'un mouvement alternatif rectiligne vertical ou d'un mouvement d'oscillation à axe horizontal, avec avance horizontale du bloc à scier.Machines comprising several saw blades are also known. The various saw blades are stretched parallel in a frame and the latter is animated by a vertical rectilinear reciprocating movement or by an oscillating movement with a horizontal axis, with horizontal advance of the block to be sawed.
La distance entre les lames est choisie de manière à scier des tranches d'épaisseur voulue. L'avantage évident de ce type de machine est qu'une série de- tranches peuvent être sciées en une seule opération de sciage.The distance between the blades is chosen so as to saw slices of desired thickness. The obvious advantage of this type of machine is that a series of- slices can be sawed in a single sawing operation.
Les inconvénients de ce type de machine sont malheureusement nombreux. En effet, la mise sous tension des lames dans le cadre est une opération longue et laborieuse et il n'est donc pas question de modifier à volonté la distance entre lames. L'épaisseur des tranches sciées ne peut donc pas être réglée en fonction des commandes et l'on doit se contenter d'une épaisseur standard.The disadvantages of this type of machine are unfortunately numerous. Indeed, putting the blades under tension in the frame is a long and laborious operation and there is therefore no question of modifying the distance between blades at will. The thickness of the sawn slices cannot therefore be adjusted according to the orders and one must be satisfied with a standard thickness.
Un autre inconvénient des machines à plusieurs lames de scie provient du cadre dans lequel ces lames sont tendues. Les lames de scie sont en effet comprises dans un cadre généralement rectangulaire au travers duquel le bloc à scier doit nécessairement passer. On voit donc que les dimensions du cadre déterminent celles du bloc. En particulier, la largeur du bloc à scier doit toujours rester inférieure à la largeur intérieure du cadre.Another disadvantage of machines with several saw blades comes from the frame in which these blades are stretched. The saw blades are indeed included in a generally rectangular frame through which the block to be saw must necessarily pass. We therefore see that the dimensions of the frame determine those of the block. In particular, the width of the block to be sawed must always remain less than the interior width of the frame.
Il faut encore noter que ce type de machine à plusieurs lames est d'une construction sophistiquée et est donc d'un coût élevé.It should also be noted that this type of multi-blade machine is of sophisticated construction and is therefore of high cost.
Le but de la présente invention est de remédier aux inconvénients précités en réalisant une machine de sciage à deux lames de scie permettant le sciage simultané de deux tranches d'épaisseur choisie arbitrairement dans deux blocs indépendants placés de part et d'autre de la machine. On réalise de telle sorte une machine symétrique, rapide et économique.The object of the present invention is to remedy the aforementioned drawbacks by producing a sawing machine with two saw blades allowing the simultaneous sawing of two slices of thickness arbitrarily chosen in two independent blocks placed on either side of the machine. This produces a symmetrical, fast and economical machine.
L'objet de l'invention est une machine de sciage pour les pierres comprenant essentiellement un châssis oscillant muni de deux lames de scie et des moyens permettant de faire avancer horizontalement les blocs à scier.The object of the invention is a sawing machine for stones essentially comprising an oscillating frame provided with two saw blades and means making it possible to advance the blocks to be sawed horizontally.
Le dit châssis, monté à pivotement autour d'un axe horizontal, est symétrique par rapport à un plan vertical perpendiculaire au dit axe horizontal.Said chassis, pivotally mounted about a horizontal axis, is symmetrical with respect to a vertical plane perpendicular to said horizontal axis.
Le dit châssis est apte à porter deux lames de scie situées dans deux plans perpendiculaires au dit axe horizontal de pivotement de part et d'autre du dit châssis.Said frame is capable of carrying two saw blades located in two planes perpendicular to said horizontal pivot axis on either side of said frame.
Le fil des deux lames de scie a une forme en arc de cercle dont le centre coîncide avec l'axe horizontal de pivotement.The wire of the two saw blades has an arcuate shape, the center of which coincides with the horizontal pivot axis.
Chacune des extrémités des lames de scie est fixée par des pièces de fixation solidaires du châssis et disposées en porte à faux de part et d'autre de celui-ci; ces pièces de fixation sont équipées de moyens aptes à fixer les extrémités des lames de scie et à mettre ces dernières sous tension.Each of the ends of the saw blades is fixed by fastening parts integral with the chassis and arranged in cantilever on either side thereof; these fasteners are equipped with means capable of fixing the ends of the saw blades and putting them under tension.
La machine de sciage comporte, en outre, des moyens aptes à animer le dit châssis d'un mouvement oscillant autour du dit axe horizontal de pivotement, de telle sorte que l'axe longitudinal des lames de scie forme à tout moment un angle aigu par rapport à la verticale.The sawing machine further comprises means capable of animating the said chassis with an oscillating movement around the said horizontal pivot axis, so that the longitudinal axis of the saw blades forms an acute angle at all times. compared to the vertical.
De part et d'autre de la machine de sciage, des moyens de transport sont prévus aptes à faire avancer les blocs de pierre horizontalement et parallèlement aux plans des lames de scie en direction de ces dernières. Des moyens de réglage de la position des deux blocs sur les dits moyens de transport par rapport aux plans des lames de scie respectives sont également prévus.On either side of the sawing machine, means of transport are provided capable of advancing the blocks of stone horizontally and parallel to the planes of the saw blades in the direction of the latter. Means for adjusting the position of the two blocks on said transport means relative to the planes of the respective saw blades are also provided.
Suivant une forme d'exécution particulière de l'invention, le dit châssis affecte la forme d'un prisme droit à base triangulaire formé de poutrelles métalliques disposées suivant les arêtes du dit prisme et assemblées par des moyens connus en soi; le dit axe horizontal de pivotement est situé parallèlement et à proximité d'une arête de prisme perpendiculaire à la dite base triangulaire, et l'axe longitudinal de chacune des deux lames de scie se confond avec le plan formé par la face du prisme opposée au dit axe horizontal de pivotement.According to a particular embodiment of the invention, said frame assumes the shape of a right prism with a triangular base formed of metal beams arranged along the edges of said prism and assembled by means known per se; the said horizontal pivot axis is located parallel to and near a prism edge perpendicular to the said triangular base, and the longitudinal axis of each of the two saw blades merges with the plane formed by the face of the prism opposite to the says hori axis pivoting zontal.
Suivant une forme avantageuse de l'invention, un dispositif de guidage du châssis est prévu dans le voisinage des lames de scie, de manière à empêcher toute déviation latérale des lames de scie.According to an advantageous form of the invention, a frame guiding device is provided in the vicinity of the saw blades, so as to prevent any lateral deviation of the saw blades.
Suivant une forme d'exécution préférée de l'invention, le dit dispositif de guidage est constitué de plaques métalliques fixées parallèlement aux plans des lames de scie contre un massif en béton placé entre les lames de scie, et le châssis est équipé de roulettes situées de part et d'autre du massif en béton, de manière à rouler sans jeu sur les dites plaques métalliques.According to a preferred embodiment of the invention, said guide device consists of metal plates fixed parallel to the planes of the saw blades against a concrete block placed between the saw blades, and the frame is fitted with rollers located on either side of the concrete block, so as to roll without play on said metal plates.
Suivant une forme avantageuse de l'invention, les dits moyens aptes à animer le dit châssis d'un mouvement oscillant autour du dit axe horizontal de pivotement sont constitués d'un système bielle-manivelle entraîné par un moteur électrique par l'intermédiaire d'un dispositif réducteur de vitesse.According to an advantageous form of the invention, said means capable of animating said chassis with a movement oscillating around said horizontal pivot axis consist of a rod-crank system driven by an electric motor by means of a speed reduction device.
Suivant une forme avantageuse de l'invention, le fil des lames de scie comporte des segments diamantés, et on peut avantageusement prévoir pour l'autre bord de chaque lame une forme courbe concave, de manière à répartir les efforts de tension dans la lame.According to an advantageous form of the invention, the wire of the saw blades comprises diamond segments, and one can advantageously provide for the other edge of each blade a concave curved shape, so as to distribute the tension forces in the blade.
Conformément à l'invention, les dits moyens permettant de fixer les extrémités des lames de scie au dit châssis sont prévus pour appliquer à celles-ci des tensions suivant des directions obliques par rapport à l'axe longitudinal des lames de scie, de telle manière qu'il apparaît dans chaque lame de scie une composante de tension perpendiculaire au fil des lames.According to the invention, said means for fixing the ends of the saw blades to said frame are provided to apply to them tensions in oblique directions relative to the longitudinal axis of the saw blades, in such a way that there appears in each saw blade a tension component perpendicular to the wire of the blades.
Suivant une forme partieuliè.re d'exécution, les dits moyens permettant d'appliquer à chaque lame de scie des tensions obliques par rapport à l'axe longitudinal de cette lame sont constitués par un système de vis et contre-écrous réglables dont les axes sont situés dans le plan de cette lame en formant avec l'axe longitudinal de la lame un angle aigu vers l'extérieur.According to a particular form of execution, the said means making it possible to apply to each saw blade oblique tensions relative to the longitudinal axis of this blade consist of a system of adjustable screws and locknuts whose axes are located in the plane of this blade by forming with the longitudinal axis of the blade an acute angle towards the outside.
Suivant une forme avantageuse de l'invention, les dits moyens de transport aptes à faire avancer les blocs de pierre vers les lames de scie sont constitués de deux chariots placés de part et d'autre de la machine sur des rails horizontaux parallèles aux plans des lames de scie, la vitesse d'avance de chacun des chariots pouvant être réglable.According to an advantageous form of the invention, the said means of transport capable of advancing the blocks of stone towards the saw blades consist of two carriages placed on either side of the machine on horizontal rails parallel to the planes of the saw blades, the advance speed of each of the carriages being adjustable.
Les dits moyens de réglage de la position des blocs sur les moyens de transport sont connus en soi et peuvent avantageusement être constitués de deux vérins solidaires des dits moyens de transport et de deux doigts de mesure.Said means for adjusting the position of the blocks on the transport means are known per se and can advantageously consist of two cylinders integral with said transport means and two measuring fingers.
D'autres caractéristiques et avantages de l'invention ressortiront de la description, donnée à titre d'exemple non limitatif, d'une forme de réalisation particulière de l'invention, référence étant faite aux dessins annexés, dans lesquels:
- la Fig. 1 est une vue en perspective cavalière d'une machine de sciage suivant l'invention;
- la Fig. 2 est une vue schématique en élévation d'une machine de sciage comportant un dispositif de guidage;
- la Fig. 3 est une coupe verticale (suivant la ligne III-III de la Fig. 2) de la machine de sciage montrée à la Fig. 2;
- la Fig. 4 montre un détail de construction du dispositif de guidage tel que représenté à la Fig. 3.
- Fig. 1 is a perspective view of a sawing machine according to the invention;
- Fig. 2 is a schematic elevation view of a sawing machine comprising a guide device;
- Fig. 3 is a vertical section (on the line III-III of FIG. 2) of the sawing machine shown in FIG. 2;
- Fig. 4 shows a construction detail of the guide device as shown in FIG. 3.
Sur toutes ces figures, des éléments identiques ou analogues sont désignés par les mêmes chiffres de référence.In all these figures, identical or analogous elements are designated by the same reference numbers.
Le châssis de la machine de sciage montrée à la Fig. 1 affecte la forme d'un prisme droit à base triangulaire formé de poutrelles métalliques 1 à 5 disposées suivant les arêtes du dit prisme et assemblées par des moyens connus en soi. Un axe horizontal de pivotement 6 solidaire d'un palier 7 et situé suivant une arête du prisme perpendiculaire à la dite base triangulaire de ce prisme permet le pivotement du châssis.The chassis of the sawing machine shown in FIG. 1 affects the shape of a right prism with a triangular base formed of
La face du prisme opposée au dit axe horizontal de pivotement 6 est prévue pour porter deux lames de scie 8, biconcaves et à segments diamantés, situées dans deux plans perpendiculaires au dit axe horizontal de pivotement 6 de part et d'autre du châssis.The face of the prism opposite to said horizontal pivot axis 6 is provided for carrying two
Le fil des deux lames de scie 8 a une forme en arc de cercle dont le centre coïncide avec le dit axe horizontal de pivotement 6.The wire of the two
Chacune des extrémités des lames de scie 8 est fixée à des pièces de fixation 9 solidaires des extrémités des deux traverses horizontales 4 et 5 formant les arêtes du prisme opposées et parallèles au dit axe horizontal de pivotement 6; les pièces de fixation 9 sont elles-mêmes disposées en porte à faux de part et d'autre du châssis.Each of the ends of the
Un système à vis et contre-écrous 10 monté sun les dites pièces de fixation 9 permet de mettre les lames de scie 8 sous tension, par l'intermédiaire d'organes de liaison 11 et de goujons 12, les axes longitudinaux des dites vis de fixation 10 de chaque lame 8 étant situés dans le plan de cette lame en formant avec l'axe longitudinal de la lame 8 un certain angle vers l'extérieur.A system of screws and
La traverse horizontale supérieure 4 est munie d'une patte d'ancrage à laquelle est fixée l'extrémité supérieure d'une bielle 13 faisant partie d'un système d'entraînement alternatif comprenant un moteur électrique 14 muni d'un pignon 15, une courroie de transmission 16, un volant 17, une manivelle 18 et un palier 19, l'extrémité inférieure de la bielle 13 étant fixée à l'extrémité de la dite manivelle 18, de sorte que le dit système d'entraînement alternatif est apte à animer le châssis de la machine d'un mouvement oscillant centré autour du dit axe horizontal de pivotement 6.The upper horizontal cross member 4 is provided with an anchoring lug to which the upper end of a connecting
La disposition des paliers 7 et 19, de la manivelle 18 et de la bielle 13 est telle que l'axe longitudinal des scies 8 reste toujours incliné par rapport à la verticale en direction contraire à celle de l'avance. Le palier 7 est placé de telle sorte que l'axe horizontal de pivotement 6 est situé légèrement au-dessus du niveau du sol, et une fosse 20 est aménagée dans le sol entre le dit palier 7 et le système d'entraînement alternatif, pour permettre aux poutrelles inférieures du châssis et à la traverse' horizontale inférieure 5 d'osciller librement.The arrangement of the
De part et d'autre de la machine sont prévus des moyens de transport constitués de deux voies ferrées 21 horizontales parallèles aux plans des lames de scie 8 et de deux chariots 22 aptes à porter chacun un bloc de pierre 23.On either side of the machine are provided means of transport consisting of two horizontal railway tracks 21 parallel to the planes of the
La machine de sciage représentée à la Fig. 2 comporte un dispositif de guidage destiné à empêcher tout mouvement horizontal du châssis. Un massif en béton 24 est placé entre les poutrelles métalliques 1 et 2 de la machine, et porte deux plaques métalliques 25 sur chacune de ses faces latérales. Le massif en béton est placé en pont par-dessus la fosse 20 de manière à ménager un espace suffisant pour la traverse horizontale inférieure 5.The sawing machine shown in FIG. 2 comprises a guide device intended to prevent any horizontal movement of the chassis. A
Comme montré aux Fig. 3 et 4, des roulettes 28 sont fixées aux poutrelles verticales 1 et 2 par l'intermédiaire de supports 29 boulonnés aux dites poutrelles verticales. Un système de réglage horizontal des plaques métalliques 25,constitué de contre-écrous 27 réglables sur les goujons filetés 26, permet d'annuler le jeu horizontal entre les plaques métalliques 25 et les roulettes 28.As shown in Figs. 3 and 4,
Un des avantages importants fournis par l'invention réside dans le fait qu'elle allie la simplicité et la facilité d'opération des machines à une seule lame avec la symétrie et l'équilibrage des tensions des machines à plusieurs lames.One of the important advantages provided by the invention resides in the fact that it combines the simplicity and the ease of operation of machines with a single blade with the symmetry and the balancing of the tensions of machines with several blades.
La machine conforme à l'invention permet de scier simultanément deux blocs différents, de dimensions différentes, et même de matières différentes, suivant des tranches d'épaisseur choisie arbitrairement.The machine according to the invention makes it possible to simultaneously saw two different blocks, of different dimensions, and even of different materials, according to slices of thickness arbitrarily chosen.
Un autre avantage de l'invention est qu'elle permet de modifier très facilement l'épaisseur des tranches sciées par un simple réglage de la position des blocs sur les moyens de transport: Vu la simplicité de cette opération de réglage de l'épaisseur de la tranche, on peut scier économiquement des tranches d'épaisseur quelconque.Another advantage of the invention is that it makes it very easy to modify the thickness of the sawn slices by simply adjusting the position of the blocks on the means of transport: In view of the simplicity of this operation of adjusting the thickness of the slice, slices of any thickness can be sawn economically.
La disposition des lames de scie de part et d'autre du châssis permet le sciage de blocs de largeur théoriquement illimitée puisque celle-ci'ne dépendra que des moyens de transport et non pas de la largeur entre lames.The arrangement of the saw blades on either side of the frame allows the sawing of blocks of theoretically unlimited width since it will depend only on the means of transport and not on the width between blades.
Bien entendu, l'invention n'est pas limitée aux formes d'exécution qui ont été décrites et représentées à titre d'exemple non limitatif, et de nombreuses modificationspeuvent y être apportées sans sortir de son ordre.Of course, the invention is not limited to the embodiments which have been described and shown by way of nonlimiting example, and numerous modifications can be made thereto without departing from its order.
Claims (20)
caractérisée en ce que le dit châssis (1, 2, 3, 4, 5) porte deux lames de scie (8) disposées de part et d'autre de celui-ci, symétriquement et parallèlement à son plan de symétrie, fixées par leurs extrémités à des pièces de fixation (9) solidaires du dit châssis (1, 2, 3, 4, 5) et disposées en porte à faux de part et d'autre de celui-ci, ces pièces de fixation (9) étant équipées de moyens aptes à fixer les extrémités des lames de scie (8) et à mettre ces dernières sous tension et que les dits moyens de transport sont situés de part et d'autre du dit châssis (1, 2, 3, 4, 5) et entraînent les blocs de pierre (23) suivant le sens axe de pivotement- lames de scie, et les dits moyens de transport portent des moyens de réglage aptes à régler la position des blocs de pierre (23) sur les dits moyens de transport par rapport aux plans des lames de scie respectives.1.- Machine for sawing stone blocks of the type comprising:
characterized in that said frame (1, 2, 3, 4, 5) carries two saw blades (8) arranged on either side thereof, symmetrically and parallel to its plane of symmetry, fixed by their ends to fixing parts (9) integral with said frame (1, 2, 3, 4, 5) and arranged in cantilever on either side thereof, these fixing parts (9) being equipped means able to fix the ends of the saw blades (8) and to put them under tension and that said means of transport are located on either side of said frame (1, 2, 3, 4, 5) and drive the stone blocks (23) in the direction of pivot axis - saw blades, and the said means of transport carry adjustment means capable of adjusting the position of the stone blocks (23) on the said means of transport by in relation to the plans of the respective saw blades.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82870034T ATE10347T1 (en) | 1981-06-19 | 1982-06-18 | MACHINE FOR SAWING STONE BLOCKS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8112132A FR2507951A1 (en) | 1981-06-19 | 1981-06-19 | MACHINE FOR SAWING BLOCKS OF STONE |
FR8112132 | 1981-06-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0069106A1 true EP0069106A1 (en) | 1983-01-05 |
EP0069106B1 EP0069106B1 (en) | 1984-11-21 |
Family
ID=9259713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82870034A Expired EP0069106B1 (en) | 1981-06-19 | 1982-06-18 | Machine for sawing stone blocks |
Country Status (7)
Country | Link |
---|---|
US (1) | US4474164A (en) |
EP (1) | EP0069106B1 (en) |
AT (1) | ATE10347T1 (en) |
DE (1) | DE3261286D1 (en) |
FR (1) | FR2507951A1 (en) |
IN (1) | IN158486B (en) |
ZA (1) | ZA823647B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931837C1 (en) * | 1989-09-23 | 1991-03-14 | Peter G Werner |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4140847B4 (en) * | 1991-12-11 | 2005-02-03 | Black & Decker Inc., Newark | Powered saw |
US20040112359A1 (en) * | 1997-04-04 | 2004-06-17 | Chien-Min Sung | Brazed diamond tools and methods for making the same |
CA2676528A1 (en) | 2007-01-24 | 2008-07-31 | Erik P. Henrickson | Reciprocating tool |
CN101767374B (en) * | 2010-02-22 | 2012-06-06 | 林天华 | Horizontally-moving seesaw-type stone saw frame |
WO2015067213A1 (en) * | 2013-11-08 | 2015-05-14 | 昆山圣进威精密机械有限公司 | Dragsaw |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1196676A (en) * | 1958-06-05 | 1959-11-25 | Hyresgaesternas Sparkasse Och | Method and machine for sawing stone |
GB1227100A (en) * | 1968-10-28 | 1971-03-31 | ||
FR2217135A1 (en) * | 1973-02-13 | 1974-09-06 | Spielvogel Ernst |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1538512A (en) * | 1919-07-05 | 1925-05-19 | Lane Mfg Company | Reciprocating sawing machine |
BE723034A (en) * | 1968-10-28 | 1969-04-28 | ||
CH497256A (en) * | 1968-10-28 | 1970-10-15 | Egleme Paul | Reciprocating saw blade |
-
1981
- 1981-06-19 FR FR8112132A patent/FR2507951A1/en active Granted
-
1982
- 1982-05-26 ZA ZA823647A patent/ZA823647B/en unknown
- 1982-05-27 IN IN402/DEL/82A patent/IN158486B/en unknown
- 1982-06-14 US US06/388,050 patent/US4474164A/en not_active Expired - Fee Related
- 1982-06-18 AT AT82870034T patent/ATE10347T1/en not_active IP Right Cessation
- 1982-06-18 EP EP82870034A patent/EP0069106B1/en not_active Expired
- 1982-06-18 DE DE8282870034T patent/DE3261286D1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1196676A (en) * | 1958-06-05 | 1959-11-25 | Hyresgaesternas Sparkasse Och | Method and machine for sawing stone |
GB1227100A (en) * | 1968-10-28 | 1971-03-31 | ||
FR2217135A1 (en) * | 1973-02-13 | 1974-09-06 | Spielvogel Ernst |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931837C1 (en) * | 1989-09-23 | 1991-03-14 | Peter G Werner |
Also Published As
Publication number | Publication date |
---|---|
FR2507951B1 (en) | 1984-09-14 |
ZA823647B (en) | 1983-03-30 |
US4474164A (en) | 1984-10-02 |
IN158486B (en) | 1986-11-22 |
ATE10347T1 (en) | 1984-12-15 |
FR2507951A1 (en) | 1982-12-24 |
EP0069106B1 (en) | 1984-11-21 |
DE3261286D1 (en) | 1985-01-03 |
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