EP0334831A1 - Sawing machine with a vertical saw frame - Google Patents

Sawing machine with a vertical saw frame Download PDF

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Publication number
EP0334831A1
EP0334831A1 EP89870042A EP89870042A EP0334831A1 EP 0334831 A1 EP0334831 A1 EP 0334831A1 EP 89870042 A EP89870042 A EP 89870042A EP 89870042 A EP89870042 A EP 89870042A EP 0334831 A1 EP0334831 A1 EP 0334831A1
Authority
EP
European Patent Office
Prior art keywords
frame
slides
driven
sawing
along
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Withdrawn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
EP89870042A
Other languages
German (de)
French (fr)
Inventor
Charles Pierre Hallez
Kurt Brach
Jean-Claude Decroly
Werner Haag
Vincent Jean Favart
Pierre Léon Ledru
Josef Hecht
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.)
Diamant Boart NV SA
General Electric Co
Original Assignee
Diamant Boart NV SA
General Electric Co
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 Diamant Boart NV SA, General Electric Co filed Critical Diamant Boart NV SA
Publication of EP0334831A1 publication Critical patent/EP0334831A1/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B3/00—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
    • B27B3/02—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks with vertically-reciprocating saw frame
    • B27B3/12—Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibration; Arrangements for counter-balancing
    • 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
    • B28D1/068—Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/6895—Plural reciprocable tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/7015—Having uniplanar compound motion
    • Y10T83/703—Tool rocks cutting reciprocations
    • Y10T83/7035—One tool reciprocates along fixed guide element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/705—With means to support tool at opposite ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8804—Tool driver movable relative to tool support
    • Y10T83/8805—Cam or eccentric revolving about fixed axis

Definitions

  • the present invention relates to a vertical frame sawing machine, intended for cutting a hard material, comprising a frame carrying said frame provided with a series of armor blades stretched over the frame, driven by a movement back and forth from top to bottom and articulated in the vicinity of each corner by pivots to pads engaged in slides.
  • the machine also includes a support table carrying the material to be sawn.
  • the invention relates in particular to a machine with vertical reciprocating movement of the blades, in which sawing takes place in both directions.
  • Document DE-C-446.196 discloses a vertical frame sawing machine intended to cut a block of hard material simultaneously into a series of parallel plates.
  • the machine includes a series of armor blades mounted on the vertical frame animated by an alternating rectilinear movement back and forth.
  • the machine also includes a saw table capable of carrying the material to be sawed and of holding the blanks of the plates in place during sawing.
  • the frame is articulated in the vicinity of each corner, by means of a pivot, to a runner run along a slide fastened to the body of the sawing machine.
  • each of the pads to the frame is intended to adapt the parallelism of the slide after mounting and before putting the sawing machine into operation.
  • This articulated connection also reduces wear on the pads and slides.
  • Document FR-A-2498977 also describes a saw with multiple armor blades, intended to cut into slabs of large blocks of marble or stone.
  • a vertical frame with relatively short saw blades is moved up and down. It allows the sawing, during the two phases of movement of the saw frame, of blocks of practically unlimited length.
  • the frame is guided at the midpoint and at the upper end of each of its sides, by two Watt guide systems, each provided with a lever articulated at each of its ends to a pendulum swinging around a fixed pivot. This arrangement allows a substantially straight guide of the frame.
  • one of the pendulums can be actuated by an eccentric, in order to ensure an almost circular sawing curve of the blade on the block of marble or stone in order to reduce the number of teeth engaged with the block.
  • the eccentric is driven at the same speed of rotation as the flywheel causing the vertical frame to move back and forth.
  • Watt's guide bars therefore oscillate in phase with the vertical frame.
  • a sophisticated balancing system compensates for the inertial forces of parts subjected to reciprocating motion. It allows to reach a speed of 260 strokes / min.
  • the main drawback of this improved Watt device is the invalidity of the sawing curve, in the sense that the envelope of the successive positions of the blades is an irregular curve which causes strong pressure spikes on each of the blades at certain times. of the frame tilting stroke.
  • a sawing machine which consists of one or more blades of armor fixed to a vertical frame to which one communicates by means of a connecting rod driven by a steering wheel, a movement back and forth from top to bottom on a fixed vertical plane.
  • a transport table brings the block of marble or stone to be engaged in a sawing direction substantially perpendicular to the blades and allows the sawing plane to cross the bearing plane of the block to be sawed.
  • the vertical arrangement of the frame allows the machine to saw blocks of indefinite length, and this with relatively short blades so as to avoid any untimely deflection of the blade.
  • the machine according to the Belgian patent uses armor blades provided with hard metal teeth, capable of making the cut during movement in one direction only.
  • the combination of the upward and downward vertical movement of the frame and the horizontal pendulum movement provides a more or less flattened ovoid sawing trajectory allowing to obtain in one direction, a gradual penetration of the teeth along a soft curve and in the other sense, the release of teeth, away from marble or stone.
  • These cyclic deformations of the armor blade cause deviations of the latter and very unfavorably influence the sharpness of the cut of the marble. or stone.
  • the present invention aims to remedy these drawbacks. It offers a vertical frame sawing machine, intended for cutting hard material, comprising a series of armor blades stretched over the above-mentioned frame, animated back and forth from top to bottom and articulated in the vicinity of each corner by pivots to pads engaged in slides and a support table carrying the material to be sawn, essentially characterized in that the slides are mounted sliding along crossed guides fixed to the frame of the machine.
  • This vertical frame sawing machine implements armor blades provided with teeth with diamond concretion, which can possibly work in only one sawing direction.
  • each abrasive grain has behind it a volume of binder called a comet tail which allows it to be supported during its cutting effort.
  • the lower slides are each connected to a link controlled by an eccentric mu in a vertical plane and the upper slides are each connected to a link controlled by an oscillating pinion with double cam driven in complete rotation and traversed by a pair of rollers which communicate a pendulum movement to a control arm.
  • the pads are articulated to the above frame.
  • the machi ne comprises a drive motor and a pair of flywheels intended for up-and-down actuation from top to bottom of the frame, and arranged in a pit.
  • the invention also relates to a method of implementing a sawing machine with a vertical frame, characterized in that a rectilinear movement synchronized is imparted to the upper slides of the frame by means of an oscillating pinion with double cam driven in rotation. complete and traversed by a pair of rollers articulated around a drive shaft.
  • each of the four corners of the frame is printed with a synchronized pendulum movement resulting for each lower corner of the frame from two crossed translational movements, the first of which is determined by the race of a shoe along d 'a slide and the second by the sliding of the slide along guides under the action of a rod driven by an eccentric driven in rotation in a vertical plane and for each upper corner of the frame, two crossed translational movements including the first is determined by the race of a shoe along a slide and the second by the sliding of the slide along guides under the action of a rod moved by an oscillating pinion with double cam with pendular movement traversed by two rollers arranged symmetrically with respect to a control shaft, so as to obtain at all times that the blade, whatever its position, is tangent to an ovoid sawing curve.
  • the sawing machine according to the invention is a multiple blade machine carried by a vertical frame. It is intended for cutting blocks of granite or very hard material in the form of more or less thin plates.
  • the machine designated as a whole by the reference sign 1 is partially mounted below, in order to better take up the vibrations.
  • a frame 2 comprising four pillars 3 which rest on the bases 4 of a workshop pit above which is mounted a support table 5 carrying a block 9 of material to be sawed.
  • a support table 5 carrying a block 9 of material to be sawed.
  • On the frame 2 are mounted mechanisms 6 for supporting the slides of a saw frame formed by a vertical rectangular frame 7 on which are stretched by means of tie rods, one or more armor blades 8 provided with suitable teeth saw in both directions of blade movement 8.
  • the saw frame 7 is formed of metal beams assembled at their ends by wider cross members 10 so as to form an extremely rigid rectangular frame.
  • the frame 7 is subjected to a reciprocating movement from top to bottom printed by a motor 11.
  • This motor 11 rotates, by means of belts 12, a single-elbow crankshaft 13 carrying two flywheels 14 on the one hand and on the other side of the elbow 13 (FIG. 2).
  • a balancing system 35 makes it possible to attenuate the vibrations of the bases 4. It is formed by two flywheels 36 arranged on either side of the first flywheels 14. These two flywheels 36 are rotated at the same speed as the first flywheels 14, but in reverse by a drive device not shown.
  • a connecting rod 15 operates from top to bottom the saw frame 7, which in the vicinity of its four corners, carries pads 16 engaged in slides 17,18, 19,20 which impose on the frame a stroke contained in a vertical plane.
  • the slides 17, 18, 19 and 20 are slidably mounted relative to the frame 2 of the machine 1, along guides 31, 32 defining a trajectory perpendicular to the direction of guide of the slides 17, 18, 19 and 20.
  • the upper slides 17, 18 move together, parallel to themselves along the guides 31, 32 in the direction of the arrows X, Y.
  • the lower slides 19, 20 move together, parallel to themselves along guides 31, 32 in the opposite direction to that of the arrows X, Y by rotating the frame around a horizontal middle axis not shown.
  • the pads 16 are articulated to the frame by pivots 27 shown in Figures 3 and 4.
  • the right slides 17,19 and the left slides 18,20 each have planar guide surfaces 34 and guide surfaces 29,30 in V, that is to say forming a certain angle between them ( Figures 5 and 7).
  • the slides 17, 18, 19 and 20 have a variable position determined by four links 21, 23 which give them an alternating rectilinear movement in the direction of the arrows X, Y along two guides 31, 32 fixed to the frame 2 of the machine sawing 1.
  • the corners of the frame 7 are subjected to two simultaneous movements, one of which is an alternating rectilinear movement from top to bottom and the other an alternating rectilinear movement in a horizontal plane.
  • the saw blades 8 determine an ovoid sawing trajectory with a progressive radius of curvature (FIG. 9) which makes it possible to reduce the sawing force by reducing the number of teeth, in contact with the material to be sawed and improve the efficiency of watering.
  • a gradual cutting of the stone block is carried out, by printing at the four corners of the frame, a synchronized pendulum movement using the four articulated links 21, 23 controlled respectively by the eccentric 22 and the oscillating pinion 24.
  • This pendulum movement has the effect of urging, in the ascending direction, the teeth which line the upper part of the armor blade and urging in the descending direction the teeth of the lower part of the armor blade.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A sawing machine with a vertical saw frame produces an ovoid sawing curve, when the frame (7) bears in the vicinity of each corner articulated blocks (16) which are engaged in slides (17, 18, 19, 20) which are themselves articulated by one end to a support member (2) of the machine. The lower (19, 20) and upper (17, 18) slides are subjected to a synchronised oscillating movement which is communicated by small rods (21, 23). The lower small rods (21) are controlled by an eccentric (22) moved in a vertical plane and the upper small rods (23) by a double-cam (25) oscillating pinion (24). …<IMAGE>…

Description

La présente invention est relative à une machine de sciage à cadre vertical, destinée à la coupe d'un ma­tériau dur, comprenant un bâti portant ledit cadre muni d'une série de lames d'armures tendues sur le cadre, animé d'un mouvement de va-et-vient de haut en bas et articulé au voisinage de chaque coin par des pivots à des patins engagés dans des glissières. La machine comporte également une table-support portant le matériau à scier.The present invention relates to a vertical frame sawing machine, intended for cutting a hard material, comprising a frame carrying said frame provided with a series of armor blades stretched over the frame, driven by a movement back and forth from top to bottom and articulated in the vicinity of each corner by pivots to pads engaged in slides. The machine also includes a support table carrying the material to be sawn.

L'invention concerne en particulier une machine à mouvement alternatif vertical des lames, dans laquelle le sciage intervient dans les deux sens.The invention relates in particular to a machine with vertical reciprocating movement of the blades, in which sawing takes place in both directions.

On connaît par le document DE-C-446.196, une machine de sciage à cadre vertical destinée à couper un bloc de matériau dur simultanément en une série de plaques parallèles. La machine comprend une série de lames d'armure montées sur le cadre vertical animé d'un mouvement rectiligne alternatif de va-et-vient.Document DE-C-446.196 discloses a vertical frame sawing machine intended to cut a block of hard material simultaneously into a series of parallel plates. The machine includes a series of armor blades mounted on the vertical frame animated by an alternating rectilinear movement back and forth.

La machine comporte également une table de sciage apte à porter le matériau à scier et à maintenir en place les ébauches de plaques pendant le sciage.The machine also includes a saw table capable of carrying the material to be sawed and of holding the blanks of the plates in place during sawing.

Le cadre est articulé au voisinage de chaque coin, au moyen d'un pivot, à un patin mû le long d'une glissière fixée au corps de la machine de sciage.The frame is articulated in the vicinity of each corner, by means of a pivot, to a runner run along a slide fastened to the body of the sawing machine.

La liaison articulée de chacun des patins au cadre est destinée à adapter le parallélisme de la glissière après le montage et avant la mise en service de la machine de sciage.The articulated connection of each of the pads to the frame is intended to adapt the parallelism of the slide after mounting and before putting the sawing machine into operation.

Cette liaison articulée permet également de réduire l'usure des patins et des glissières.This articulated connection also reduces wear on the pads and slides.

Le document FR-A-2498977, décrit également une scie à lames d'armures multiples, destinée à débiter en pla­ques de gros blocs de marbre ou de pierre. Un cadre vertical muni de lames de scie relativement courtes, est animé d'un mouvement de montée et descente. Il permet le sciage, pendant les deux phases de déplace­ment du cadre de la scie, de blocs de longueur prati­quement illimitée. Le cadre est guidé au point milieu et à l'extrémité supérieure de chacun de ses côtés, par deux systèmes de guidage de Watt, dotés chacun d'un levier articulé à chacune de ses extrémités à un balancier oscillant autour d'un pivot fixe. Cette dis­position permet un guidage sensiblement rectiligne du cadre.Document FR-A-2498977 also describes a saw with multiple armor blades, intended to cut into slabs of large blocks of marble or stone. A vertical frame with relatively short saw blades is moved up and down. It allows the sawing, during the two phases of movement of the saw frame, of blocks of practically unlimited length. The frame is guided at the midpoint and at the upper end of each of its sides, by two Watt guide systems, each provided with a lever articulated at each of its ends to a pendulum swinging around a fixed pivot. This arrangement allows a substantially straight guide of the frame.

Dans ce système de guidage, un des balanciers peut être actionné par un excentrique, afin d'assurer une courbe de sciage quasiment circulaire de la lame sur le bloc de marbre ou de pierre dans le but de réduire le nombre de dents en prise avec le bloc.In this guidance system, one of the pendulums can be actuated by an eccentric, in order to ensure an almost circular sawing curve of the blade on the block of marble or stone in order to reduce the number of teeth engaged with the block.

L'excentrique est entraîné à la même vitesse de rota­tion que le volant entraînant le mouvement de va-et-­vient du cadre vertical. Les barres de guidage de Watt oscillent donc en phase avec le cadre vertical.The eccentric is driven at the same speed of rotation as the flywheel causing the vertical frame to move back and forth. Watt's guide bars therefore oscillate in phase with the vertical frame.

Un système d'équilibrage sophistiqué compense les for­ces d'inertie des pièces soumises à un mouvement al­ternatif. Il permet d'atteindre une vitesse de 260 coups/min.A sophisticated balancing system compensates for the inertial forces of parts subjected to reciprocating motion. It allows to reach a speed of 260 strokes / min.

Le principal inconvénient de ce dispositif amélioré de Watt réside dans l'invalidité de la courbe de sciage, en ce sens que l'enveloppe des positions successives des lames est une courbe irrégulière qui occasionne de fortes pointes de pression sur chacune des lames à certains moments de la course de basculement du cadre.The main drawback of this improved Watt device is the invalidity of the sawing curve, in the sense that the envelope of the successive positions of the blades is an irregular curve which causes strong pressure spikes on each of the blades at certain times. of the frame tilting stroke.

Ces pointes de pression soumettent les leviers et ba­lanciers du système de guidage, et notamment les tou­rillons d'attache à des efforts énormes qui entraînent une usure prématurée desdits tourillons.These pressure peaks subject the levers and pendulums of the guide system, and in particular the attachment pins to enormous forces which cause premature wear of said pins.

Par le brevet belge n° 529856, on connaît une machine de sciage qui se compose d'une ou de plusieurs lames d'armure fixée à un cadre vertical auquel on communi­que à l'aide d'une bielle entraînée par un volant, un mouvement de va-et-vient de haut en bas sur un plan vertical fixe. Une table de transport amène le bloc de marbre ou de pierre à engager dans une direction de sciage sensiblement perpendiculaire aux lames et per­met au plan de sciage de croiser le plan d'appui du bloc à scier.By Belgian patent n ° 529856, a sawing machine is known which consists of one or more blades of armor fixed to a vertical frame to which one communicates by means of a connecting rod driven by a steering wheel, a movement back and forth from top to bottom on a fixed vertical plane. A transport table brings the block of marble or stone to be engaged in a sawing direction substantially perpendicular to the blades and allows the sawing plane to cross the bearing plane of the block to be sawed.

La disposition verticale du cadre permet à la machine de scier des blocs de longueur indéfinie, et ce avec des lames relativement courtes de manière à éviter toute déviation intempestive de la lame.The vertical arrangement of the frame allows the machine to saw blocks of indefinite length, and this with relatively short blades so as to avoid any untimely deflection of the blade.

La machine selon le brevet belge emploie des lames d'armure pourvues de dents en métal dur, aptes à effectuer la coupe pendant le déplacement dans un sens seulement.The machine according to the Belgian patent uses armor blades provided with hard metal teeth, capable of making the cut during movement in one direction only.

Pour permettre d'effectuer une coupe graduelle du bloc, pendant le mouvement descendant du cadre, et permettre de dégager les lames pendant le mouvement ascendant du cadre, on imprime aux quatre coins du ca­dre, un mouvement pendulaire synchronisé à l'aide de quatre bielles articulées, solidarisées par des fourches à quatre tiges horizontales guidées, comman­dées par quatre excentriques entraînés en rotation synchrone par l'arbre principal qui actionne le cadre de scie.To allow a gradual cutting of the block, during the downward movement of the frame, and to allow the blades to be released during the upward movement of the frame, we print at the four corners of the frame, a pendulum movement synchronized using four connecting rods articulated, secured by forks with four guided horizontal rods, controlled by four eccentrics driven in synchronous rotation by the main shaft which actuates the saw frame.

La combinaison du mouvement vertical ascendant et des­cendant du cadre et du mouvement pendulaire horizon­tal procure une trajectoire de sciage ovoïdale plus ou moins aplatie permettant d'obtenir dans un sens, une pénétration graduelle des dents le long d'une courbe douce et dans l'autre sens, le dégagement des dents, loin du marbre ou de la pierre.The combination of the upward and downward vertical movement of the frame and the horizontal pendulum movement provides a more or less flattened ovoid sawing trajectory allowing to obtain in one direction, a gradual penetration of the teeth along a soft curve and in the other sense, the release of teeth, away from marble or stone.

On observe aussi qu'en raison de la nature même de la courbe ovoïdale, toutes les dents des lames ne sont pas sollicitées avec la même sévérité.It is also observed that due to the very nature of the ovoid curve, all the teeth of the blades are not stressed with the same severity.

Le relèvement de la lame d'armure à chaque cycle, pour dégager les dents, soustrait régulièrement la lame d'armure à la pression de sciage et autorise un relâ­chement répété mais total de celle-ci. L'engagement ultérieur des dents dans la pierre, jusqu'à une pres­sion de contact prédéterminée, induit dans la lame des tensions de sciage importantes et provoque des défor­mations non négligeables et répétées de la lame d'ar­mure, ainsi soumise à des efforts de fatigues considé­rables. Ces déformations cycliques de la lame d'armure entraînent des déviations de celle-ci et influencent très défavorablement la netteté de la coupe du marbre ou de la pierre.Raising the armor blade at each cycle, to clear the teeth, regularly subtracts the armor blade from sawing pressure and allows repeated but total relaxation of the latter. The subsequent engagement of the teeth in the stone, up to a predetermined contact pressure, induces in the blade significant sawing tensions and causes significant and repeated deformations of the armor blade, thus subjected to fatigue efforts considerable. These cyclic deformations of the armor blade cause deviations of the latter and very unfavorably influence the sharpness of the cut of the marble. or stone.

La présente invention vise à remédier à ces inconvénients. Elle propose une machine de sciage à cadre vertical, destinée à la coupe d'un matériau dur, comprenant une série de lames d'armures tendues sur le cadre susdit, animé d'un mouvement de va-et-vient de haut en bas et articulé au voisinage de chaque coin par des pivots à des patins engagés dans des glissières et une table-support portant le matériau à scier, essentiellement caractérisée en ce que les glissières sont montées coulissantes le long de guides croisés fixés au bâti de la machine.The present invention aims to remedy these drawbacks. It offers a vertical frame sawing machine, intended for cutting hard material, comprising a series of armor blades stretched over the above-mentioned frame, animated back and forth from top to bottom and articulated in the vicinity of each corner by pivots to pads engaged in slides and a support table carrying the material to be sawn, essentially characterized in that the slides are mounted sliding along crossed guides fixed to the frame of the machine.

Cette machine de sciage à cadre vertical met en oeuvre des lames d'armure pourvues de dents à concrétion dia­mantée, qui peuvent éventuellement travailler dans un seul sens de sciage. Dans les dents de la lame d'armu­re travaillant dans un seul sens, chaque grain abrasif présente derrière lui un volume de liant appelé queue de comète qui permet de le soutenir durant son effort de coupe.This vertical frame sawing machine implements armor blades provided with teeth with diamond concretion, which can possibly work in only one sawing direction. In the teeth of the armor blade working in one direction, each abrasive grain has behind it a volume of binder called a comet tail which allows it to be supported during its cutting effort.

Selon une particularité de l'invention, les glissières inférieures sont reliées chacune à une biellette com­mandée par un excentrique mu dans un plan vertical et les glissières supérieures sont reliées chacune à une biellette commandée par un pignon oscillant à double came entraîné en rotation complète et parcouru par une paire de galets qui communiquent un mouvement pendu­laire à un bras de commande.According to a feature of the invention, the lower slides are each connected to a link controlled by an eccentric mu in a vertical plane and the upper slides are each connected to a link controlled by an oscillating pinion with double cam driven in complete rotation and traversed by a pair of rollers which communicate a pendulum movement to a control arm.

Les patins sont articulés au cadre susdit.The pads are articulated to the above frame.

En vue de reprendre au mieux les vibrations, la machi­ ne selon l'invention comporte un moteur d'entraînement et une paire de volants d'inertie destinés à l'actionnement en va-et-vient de haut en bas du cadre, et disposés dans une fosse.In order to recover vibrations as much as possible, the machi ne according to the invention comprises a drive motor and a pair of flywheels intended for up-and-down actuation from top to bottom of the frame, and arranged in a pit.

L'invention concerne également un procédé de mise en oeuvre d'une machine de sciage à cadre vertical carac­térisé en ce que l'on imprime un mouvement rectiligne synchronisé aux glissières supérieures du cadre au moyen d'un pignon oscillant à double came entraîné en rotation complète et parcouru par une paire de galets articulée autour d'un arbre de commande.The invention also relates to a method of implementing a sawing machine with a vertical frame, characterized in that a rectilinear movement synchronized is imparted to the upper slides of the frame by means of an oscillating pinion with double cam driven in rotation. complete and traversed by a pair of rollers articulated around a drive shaft.

Dans un mode de réalisation particulier, on imprime à chacun des quatre coins du cadre, un mouvement pendu­laire synchronisé résultant pour chaque coin inférieur du cadre de deux mouvements de translation croisés, dont le premier est déterminé par la course d'un patin le long d'une glissière et le second par le coulisse­ment de la glissière le long de guides sous l'action d'une biellette mue par un excentrique entraîné en ro­tation dans un plan vertical et pour chaque coin supérieur du cadre, de deux mouvements de translation croisés dont le premier est déterminé par la course d'un patin le long d'une glissière et le second par le coulissement de la glissière le long de guides sous l'action d'une biellette mue par un pignon oscillant à double came à mouvement pendulaire parcouru par deux galets disposés symétriquement par rapport à un arbre de commande, de manière à obtenir à tout moment que la lame, quelle que soit sa position, soit tangente à une courbe de sciage ovoïdale.In a particular embodiment, each of the four corners of the frame is printed with a synchronized pendulum movement resulting for each lower corner of the frame from two crossed translational movements, the first of which is determined by the race of a shoe along d 'a slide and the second by the sliding of the slide along guides under the action of a rod driven by an eccentric driven in rotation in a vertical plane and for each upper corner of the frame, two crossed translational movements including the first is determined by the race of a shoe along a slide and the second by the sliding of the slide along guides under the action of a rod moved by an oscillating pinion with double cam with pendular movement traversed by two rollers arranged symmetrically with respect to a control shaft, so as to obtain at all times that the blade, whatever its position, is tangent to an ovoid sawing curve.

D'autres particularités et détails de l'invention ap­paraîtront au cours de la description détaillée sui­ vante d'une forme de réalisation préférée de la machi­ne de sciage suivant l'invention.Other features and details of the invention will become apparent during the detailed description which follows. boasts of a preferred embodiment of the sawing machine according to the invention.

Dans ces dessins :

  • - la figure 1 est une vue en élévation latérale d'une machine de sciage selon l'invention;
  • - la figure 2 est une vue de bout de la machine illus­trée à la figure 1;
  • - la figure 3 est une vue de bout partiellement arra­chée du cadre de la machine susdite;
  • - la figure 4 est une vue en plan du cadre montré à la figure 3;
  • - la figure 5 est une coupe suivant la ligne VI-VI′ d'une glissière supérieure de droite du cadre com­mandée par un mécanisme à mouvement pendulaire syn­chronisé;
  • - la figure 6 est une vue en élévation latérale de la glissière de droite montrée à la figure 5;
  • - la figure 7 est une coupe analogue à celle de la figure 5 d'une glissière inférieure de gauche, sui­vant la ligne VIII-VIII′;
  • - la figure 8 est une vue en élévation d'une glissière inférieure de gauche montrée à la figure 7 et com­mandée par un excentrique, et
  • - la figure 9 montre une courbe de sciage de forme ovoïdale.
In these drawings:
  • - Figure 1 is a side elevational view of a sawing machine according to the invention;
  • - Figure 2 is an end view of the machine illustrated in Figure 1;
  • - Figure 3 is a partially cut away end view of the frame of the above machine;
  • - Figure 4 is a plan view of the frame shown in Figure 3;
  • - Figure 5 is a section along line VI-VI ′ of a right upper slide of the frame controlled by a mechanism with synchronized pendulum movement;
  • - Figure 6 is a side elevational view of the right slide shown in Figure 5;
  • - Figure 7 is a section similar to that of Figure 5 of a lower left slide, along the line VIII-VIII ′;
  • FIG. 8 is an elevation view of a lower left slide shown in FIG. 7 and controlled by an eccentric, and
  • - Figure 9 shows a saw curve of ovoid shape.

Dans ces dessins, les mêmes signes de référence dési­gnent des éléments identiques ou analogues.In these drawings, the same reference signs denote identical or analogous elements.

La machine de sciage selon l'invention est une machine à lames multiples portées par un cadre vertical. Elle est destinée à la découpe de blocs de granit ou maté­riau très dur sous forme de plaques plus ou moins minces.The sawing machine according to the invention is a multiple blade machine carried by a vertical frame. It is intended for cutting blocks of granite or very hard material in the form of more or less thin plates.

Comme illustré à la figure 1, la machine désignée dans son ensemble par le signe de référence 1 est partiel­lement montée en contrebas, afin de mieux reprendre les vibrations.As illustrated in FIG. 1, the machine designated as a whole by the reference sign 1 is partially mounted below, in order to better take up the vibrations.

Elle comporte un bâti 2 comprenant quatre piliers 3 qui reposent sur les soubassements 4 d'une fosse d'a­telier au-dessus de laquelle est montée une table-­support 5 portant un bloc 9 de matériau à scier. Sur le bâti 2 sont montés des mécanismes 6 de support de glissières d'un châssis de scie formé d'un cadre 7 rectangulaire vertical sur lequel sont tendues à l'aide de tirants, une ou plusieurs lames d'armure 8 pourvues de dents aptes à scier dans les deux sens de déplacement des lames 8.It comprises a frame 2 comprising four pillars 3 which rest on the bases 4 of a workshop pit above which is mounted a support table 5 carrying a block 9 of material to be sawed. On the frame 2 are mounted mechanisms 6 for supporting the slides of a saw frame formed by a vertical rectangular frame 7 on which are stretched by means of tie rods, one or more armor blades 8 provided with suitable teeth saw in both directions of blade movement 8.

Le cadre de scie 7 est formé de poutrelles métalliques assemblées à leurs extrémités par des traverses 10 plus larges de manière à former un encadrement rectan­gulaire extrêmement rigide.The saw frame 7 is formed of metal beams assembled at their ends by wider cross members 10 so as to form an extremely rigid rectangular frame.

Le cadre 7 est soumis à un mouvement alternatif de haut en bas imprimé par un moteur 11. Ce moteur 11 entraîne en rotation, par l'intermédiaire de courroies 12, un villebrequin 13 à coude unique portant deux volants d'inertie 14 de part et d'autre du coude 13 (figure 2). Un système d'équilibrage 35 permet d'atténuer les vibrations des soubassements 4. Il est formé de deux volants 36 disposés de part et d'autre des premiers volants 14. Ces deux volants 36 sont entraînés en rotation à la même vitesse que les premiers volants 14, mais en sens inverse par un dispositif d'entraînement non montré.The frame 7 is subjected to a reciprocating movement from top to bottom printed by a motor 11. This motor 11 rotates, by means of belts 12, a single-elbow crankshaft 13 carrying two flywheels 14 on the one hand and on the other side of the elbow 13 (FIG. 2). A balancing system 35 makes it possible to attenuate the vibrations of the bases 4. It is formed by two flywheels 36 arranged on either side of the first flywheels 14. These two flywheels 36 are rotated at the same speed as the first flywheels 14, but in reverse by a drive device not shown.

Une bielle 15 actionne de haut en bas le cadre de scie 7, qui au voisinage de ses quatre coins, porte des patins 16 engagés dans des glissières 17,18, 19,20 qui imposent au cadre une course contenue dans un plan vertical.A connecting rod 15 operates from top to bottom the saw frame 7, which in the vicinity of its four corners, carries pads 16 engaged in slides 17,18, 19,20 which impose on the frame a stroke contained in a vertical plane.

Les glissières 17, 18, 19 et 20 sont montées coulis­santes par rapport au bâti 2 de la machine 1, le long de guides 31, 32 définissant une trajectoire perpendi­culaire à la direction de guidage des glissières 17, 18, 19 et 20.The slides 17, 18, 19 and 20 are slidably mounted relative to the frame 2 of the machine 1, along guides 31, 32 defining a trajectory perpendicular to the direction of guide of the slides 17, 18, 19 and 20.

Les glissières supérieures 17, 18 se déplacent ensem­ble, parallèlement à elles-mêmes le long des guides 31, 32 dans le sens des flèches X, Y.The upper slides 17, 18 move together, parallel to themselves along the guides 31, 32 in the direction of the arrows X, Y.

Simultanément les glissières inférieures 19, 20 se déplacent ensemble, parallèlement à elles-mêmes le long de guides 31, 32 dans le sens opposé à celui des flèches X, Y en faisant pivoter le cadre autour d'un axe milieu horizontal non représenté.Simultaneously the lower slides 19, 20 move together, parallel to themselves along guides 31, 32 in the opposite direction to that of the arrows X, Y by rotating the frame around a horizontal middle axis not shown.

Pour permettre un mouvement de pivotement du cadre par rapport aux glissières 17,18,19 et 20, les patins 16 sont articulés au cadre par des pivots 27 montrés aux figures 3 et 4. Les glissières de droite 17,19 et les glissières de gauche 18,20 présentent chacune des sur­faces-guides planes 34 et des surfaces-guides 29,30 en V, c'est-à-dire formant un certain angle entre elles (figures 5 et 7).To allow a pivoting movement of the frame relative to the slides 17,18,19 and 20, the pads 16 are articulated to the frame by pivots 27 shown in Figures 3 and 4. The right slides 17,19 and the left slides 18,20 each have planar guide surfaces 34 and guide surfaces 29,30 in V, that is to say forming a certain angle between them (Figures 5 and 7).

Les glissières 17, 18, 19 et 20 ont une position va­riable déterminée par quatre biellettes 21, 23 qui leur impriment un mouvement rectiligne alternatif dans le sens des flèches X, Y le long de deux guides 31, 32 fixés au bâti 2 de la machine de sciage 1.The slides 17, 18, 19 and 20 have a variable position determined by four links 21, 23 which give them an alternating rectilinear movement in the direction of the arrows X, Y along two guides 31, 32 fixed to the frame 2 of the machine sawing 1.

Le mouvement de translation dans le sens des flèches X, Y des glissières supérieures 17,18 le long des gui­des 31,32 est obtenu par la biellette 23 entraînée par un pignon oscillant 24 à double came 25 parcouru par une paire de galets 26 qui transmettent un mouvement pendulaire à un arbre de commande 28 (figure 6).The translational movement in the direction of the arrows X, Y of the upper slides 17,18 along the guides 31,32 is obtained by the rod 23 driven by an oscillating pinion 24 with double cam 25 traversed by a pair of rollers 26 which transmit a pendulum movement to a control shaft 28 (Figure 6).

Le mouvement de translation dans le sens des flèches X, Y des glissières inférieures 19, 20 le long des guides 31, 32 est transmis par la biellette 21 mue par un excentrique 22 entraîné en rotation dans un plan vertical (figure 8).The translational movement in the direction of the arrows X, Y of the lower slides 19, 20 along the guides 31, 32 is transmitted by the link 21 moved by an eccentric 22 driven in rotation in a vertical plane (FIG. 8).

Grâce au déplacement synchronisé des glissières, les coins du cadre 7 sont soumis à deux mouvements simul­tanés dont l'un est un mouvement rectiligne alternatif de haut en bas et l'autre un mouvement rectiligne al­ternatif dans un plan horizontal. Il en résulte que les lames de scie 8 déterminent une trajectoire de sciage ovoïdale à rayon de courbure progressif (figure 9) qui permet de diminuer l'effort de sciage en rédui­sant le nombre de dents, en contact avec le matériau à scier et d'améliorer l'efficacité de l'arrosage.Thanks to the synchronized movement of the slides, the corners of the frame 7 are subjected to two simultaneous movements, one of which is an alternating rectilinear movement from top to bottom and the other an alternating rectilinear movement in a horizontal plane. As a result, the saw blades 8 determine an ovoid sawing trajectory with a progressive radius of curvature (FIG. 9) which makes it possible to reduce the sawing force by reducing the number of teeth, in contact with the material to be sawed and improve the efficiency of watering.

On effectue une coupe graduelle du bloc de pierre, en imprimant au quatre coins du cadre, un mouvement pendulaire synchronisé à l'aide des quatre biellettes articulées 21,23 commandées respectivement par l'ex­centrique 22 et le pignon oscillant 24.A gradual cutting of the stone block is carried out, by printing at the four corners of the frame, a synchronized pendulum movement using the four articulated links 21, 23 controlled respectively by the eccentric 22 and the oscillating pinion 24.

Ce mouvement pendulaire a pour effet de solliciter, dans le sens ascendant, les dents qui garnissent la partie supérieure de la lame d'armure et de solliciter dans le sens descendant les dents de la partie infé­rieure de la lame d'armure.This pendulum movement has the effect of urging, in the ascending direction, the teeth which line the upper part of the armor blade and urging in the descending direction the teeth of the lower part of the armor blade.

Le dégagement répété d'une partie des dents de la lame d'armure permet d'améliorer l'efficacité de l'arrosa­ge.The repeated clearing of part of the teeth of the armor blade improves the efficiency of watering.

Comme le cadre oscille dans une position fixe, il faut amener le bloc à la rencontre des lames. Ce problème est résolu à l'aide d'une table-support telle que dé­crite dans la demande de brevet allemand n° 3735529.5. Il s'agit d'une table-support permettant le déplace­ment horizontal du bloc qui est engagé ainsi sur les lames sous une pression déterminée pendant une partie au moins des deux phases d'oscillation des lames.As the frame oscillates in a fixed position, it is necessary to bring the block to meet the blades. This problem is solved using a support table as described in German patent application No. 3735529.5. It is a support table allowing the horizontal displacement of the block which is thus engaged on the blades under a determined pressure during at least part of the two oscillation phases of the blades.

Claims (4)

1. Machine de sciage à cadre vertical (7), destinée à la coupe d'un matériau dur, comprenant un bâti (2) portant ledit cadre (7) muni d'une série de lames d'armure (8) tendues sur le cadre (7) animé d'un mouvement de va-et-vient de haut en bas et articulé au voisinage de chaque coin par des pivots (27) à des patins (16) engagés dans des glissières (17, 18, 19, 20) et une table-support (5) portant le matériau à scier, caractérisée en ce que les glissières (17, 18, 19, 20) sont montées coulissantes le long de guides croisés (31, 32) fixés au bâti (2) de la machine.1. Sawing machine with vertical frame (7), intended for cutting a hard material, comprising a frame (2) carrying said frame (7) provided with a series of armor blades (8) stretched on the frame (7) driven back and forth from top to bottom and articulated in the vicinity of each corner by pivots (27) to pads (16) engaged in slides (17, 18, 19, 20 ) and a support table (5) carrying the material to be sawn, characterized in that the slides (17, 18, 19, 20) are slidably mounted along crossed guides (31, 32) fixed to the frame (2) of the machine. 2. Machine selon la revendication 1, caractérisée en ce que les glissières inférieures (19,20) sont entraî­nées en translation chacune à une biellette (21) com­mandée par un excentrique (22) mû dans un plan verti­cal et les glissières supérieures (17,18) sont entraî­nées chacune par une biellette (23) commandée par un pignon oscillant (24) à double came (25) à mouvement pendulaire parcouru par une paire de galets (26).2. Machine according to claim 1, characterized in that the lower slides (19,20) are driven in translation each to a link (21) controlled by an eccentric (22) moved in a vertical plane and the upper slides (17, 18) are each driven by a link (23) controlled by an oscillating pinion (24) with double cam (25) with pendulum movement traversed by a pair of rollers (26). 3. Procédé de mise en oeuvre d'une machine de sciage à cadre vertical selon la revendication 1, caractérisé en ce qu'on imprime un mouvement rectiligne alternatif synchronisé aux glissières supérieures du cadre (17, 18) au moyen d'un pignon oscillant (24) à double came (25) entraîné en rotation complète et parcouru par une paire de galets (26) articulée autour d'un arbre de commande (28).3. Method of implementing a vertical frame sawing machine according to claim 1, characterized in that an alternating rectilinear movement is synchronized with the upper slideways of the frame (17, 18) by means of an oscillating pinion (24) with double cam (25) driven in complete rotation and traversed by a pair of rollers (26) articulated around a control shaft (28). 4. Procédé selon la revendication 3, caractérisé en ce qu'on imprime à chacun des quatre coins du cadre (7), un mouvement pendulaire synchronisé résultant pour chaque coin inférieur du cadre (7) de deux mouvements de translation croisés dont le premier est déterminé par la course d'un patin (6) le long d'une glissière (19, 20) et le second par le coulissement de la glissière (19, 20) le long de guides (31, 32) sous l'action d'une biellette (21) mue par un excentrique (22) entraîné en rotation dans un plan vertical et pour chaque coin supérieur du cadre (7), de deux mouvements de translation croisés dont le premier est déterminé par la course d'un patin (16) le long d'une glissière (17, 18) et le second par le coulissement de la glissière (17, 18) le long des guides (31, 32) sous l'action d'une biellette (23) mue par un pignon oscillant (24) à double came (25) à mouvement pendulaire parcouru par deux galets (26) disposés symétriquement par rapport à un arbre de commande (28), de manière à obtenir à tout moment que chaque lame (8) quelle que soit sa position, soit tangente à une courbe de sciage ovoïdale.4. Method according to claim 3, characterized in that one prints at each of the four corners of the frame (7), a synchronized pendulum movement resulting for each lower corner of the frame (7) from two crossed translational movements of which the first is determined by the travel of a shoe (6) along a slide (19, 20) and the second by the sliding of the slide (19, 20) along guides (31, 32) under the action of 'a link (21) driven by an eccentric (22) driven in rotation in a vertical plane and for each upper corner of the frame (7), two crossed translational movements, the first of which is determined by the stroke of a shoe ( 16) along a slide (17, 18) and the second by the sliding of the slide (17, 18) along the guides (31, 32) under the action of a link (23) moved by a oscillating pinion (24) with double cam (25) with pendulum movement traversed by two rollers (26) arranged symmetrically with respect to a drive shaft (28), so to obtain at any time that each blade (8) whatever its position, is tangent to an ovoid sawing curve.
EP89870042A 1988-03-25 1989-03-21 Sawing machine with a vertical saw frame Withdrawn EP0334831A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8800347 1988-03-25
BE8800347A BE1001531A4 (en) 1988-03-25 1988-03-25 Cutting machine vertical frame.

Publications (1)

Publication Number Publication Date
EP0334831A1 true EP0334831A1 (en) 1989-09-27

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ID=3883329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89870042A Withdrawn EP0334831A1 (en) 1988-03-25 1989-03-21 Sawing machine with a vertical saw frame

Country Status (7)

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US (1) US4993299A (en)
EP (1) EP0334831A1 (en)
JP (1) JPH0714607B2 (en)
KR (1) KR890014233A (en)
BE (1) BE1001531A4 (en)
CA (1) CA1325158C (en)
FI (1) FI88273C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017918A1 (en) * 2006-08-11 2008-02-14 Quarella S.P.A. Block-cutting gangsaw for cutting granite or other hard materials, and corresponding cutting method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1005537C2 (en) * 1997-03-14 1998-09-15 Rompa Patent Beheer B V Apparatus for slicing bread and the like bakery products.
AT501153B8 (en) * 2005-04-29 2007-02-15 Wintersteiger Ag gang saw
RU2659245C1 (en) * 2017-09-22 2018-06-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Вятский государственный университет" (ВятГУ) Method of log wood sawing with band saw swinging

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE529856A (en) *
DE446196C (en) * 1927-06-24 Generaldirektion Der Berg Huet Gate frame guide on vertical gates
DE921230C (en) * 1953-08-11 1954-12-13 Josef Sandbichler Gang saw with pendulum suspended guide frame
DE1453181A1 (en) * 1962-03-28 1969-03-27 Wurster & Dietz Maschinenfabri Frame saw with continuous feed, saw curtain and swing-back frame
FR2498977A1 (en) * 1981-02-03 1982-08-06 Gen Electric Stone block gang saw - has saw frame mounted vertically and in central bearings and straight guides
DE3735529A1 (en) * 1987-10-17 1989-04-27 Diamant Boart Sa Sawing machine for cutting through stone blocks or hard-material blocks

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US264473A (en) * 1882-09-19 Robert n
US885119A (en) * 1906-06-04 1908-04-21 Theodore S Wilkin Gang-saw mill.
US2726687A (en) * 1952-04-19 1955-12-13 Dominion Bridge Co Ltd Oscillating and reciprocating mechanism for saws
US2864413A (en) * 1956-02-21 1958-12-16 Johnson Mfg Co Gang saw
DE2318819C3 (en) * 1973-04-13 1982-02-25 Kockums Industri AB, 826 01 Söderhamn Frame saw machine
DE2638964C3 (en) * 1976-08-28 1980-04-03 Maschinenfabrik Esterer Ag, 8262 Altoetting Saw frame
SE420688B (en) * 1978-08-24 1981-10-26 Gustaf Adolf Persson Framework Saw for Cutting Essentially Horizontal Workpiece
DE3103482C2 (en) * 1981-02-03 1985-05-23 General Electric Co., Schenectady, N.Y. Saw frame for sawing stone blocks or the like
JPH0244474B2 (en) * 1983-04-23 1990-10-04 Kyowa Hakko Kogyo Kk KARUBASE FUEMUKAGOBUTSU

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE529856A (en) *
DE446196C (en) * 1927-06-24 Generaldirektion Der Berg Huet Gate frame guide on vertical gates
DE921230C (en) * 1953-08-11 1954-12-13 Josef Sandbichler Gang saw with pendulum suspended guide frame
DE1453181A1 (en) * 1962-03-28 1969-03-27 Wurster & Dietz Maschinenfabri Frame saw with continuous feed, saw curtain and swing-back frame
FR2498977A1 (en) * 1981-02-03 1982-08-06 Gen Electric Stone block gang saw - has saw frame mounted vertically and in central bearings and straight guides
DE3735529A1 (en) * 1987-10-17 1989-04-27 Diamant Boart Sa Sawing machine for cutting through stone blocks or hard-material blocks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017918A1 (en) * 2006-08-11 2008-02-14 Quarella S.P.A. Block-cutting gangsaw for cutting granite or other hard materials, and corresponding cutting method
EA014573B1 (en) * 2006-08-11 2010-12-30 Кварелла С.П.А. Block-cutting gangsaw for cutting granite or other hard materials, and corresponding cutting method
AU2007282970B2 (en) * 2006-08-11 2011-08-04 Q.R.B.G. S.R.L. Block-cutting gangsaw for cutting granite or other hard materials, and corresponding cutting method
US8056550B2 (en) 2006-08-11 2011-11-15 Quarella S.P.A. Block-cutting gangsaw for cutting granite or other hard materials, and corresponding cutting method
NO340202B1 (en) * 2006-08-11 2017-03-20 Quarella Spa Block cutting frame saw for cutting granite or other hard materials, and similar method for cutting

Also Published As

Publication number Publication date
FI891391A0 (en) 1989-03-23
JPH0714607B2 (en) 1995-02-22
FI88273C (en) 1993-04-26
JPH02167702A (en) 1990-06-28
KR890014233A (en) 1989-10-23
CA1325158C (en) 1993-12-14
US4993299A (en) 1991-02-19
BE1001531A4 (en) 1989-11-21
FI88273B (en) 1993-01-15
FI891391A (en) 1989-09-26

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