EP1142680A2 - Procédé pour couper des blocs de pierre en carrièrres et machine mettant en oeuvre ce procédé - Google Patents

Procédé pour couper des blocs de pierre en carrièrres et machine mettant en oeuvre ce procédé Download PDF

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Publication number
EP1142680A2
EP1142680A2 EP01107416A EP01107416A EP1142680A2 EP 1142680 A2 EP1142680 A2 EP 1142680A2 EP 01107416 A EP01107416 A EP 01107416A EP 01107416 A EP01107416 A EP 01107416A EP 1142680 A2 EP1142680 A2 EP 1142680A2
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EP
European Patent Office
Prior art keywords
cutting
cut
machine
block
wire
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Withdrawn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
EP01107416A
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German (de)
English (en)
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EP1142680A3 (fr
Inventor
Emilio Brocco
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1142680A2 publication Critical patent/EP1142680A2/fr
Publication of EP1142680A3 publication Critical patent/EP1142680A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
    • B28D1/088—Sawing in situ, e.g. stones from rocks, grooves in walls
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/54—Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like

Definitions

  • the present invention relates to a process for cutting blocks in stone quarries and the like, and to the machine for the application of this process.
  • the block which has been obtained can then be subjected, in the quarry and by means of suitable machines, to further cutting operations, called the "secondary cut", to divide it into blocks which are smaller but not yet suitable for transporting out of the quarry.
  • the blocks of stone are cut into parallelepipedal pieces by means of known cutting machines, comprising a carriage structure in which powered wheels cause the machine to advance or withdraw along fixed straight tracks during the stages of positioning and working.
  • the carriage supports a flywheel carrier unit, in which traversing and rotation through 360° are carried out by electric motors.
  • a diamond cutting wire having a length of several tens of metres for example, is partially wound in a closed loop on the flywheel, and is guided by means of idle pulleys which are fixed with respect to the carriage and have axes parallel to that of the flywheel, while it is made to pass through suitable holes into the material to be cut, essentially in a "noose" configuration.
  • the stone is cut in a plane, for example a vertical plane, which contains the loop of diamond wire.
  • a plane for example a vertical plane, which contains the loop of diamond wire.
  • the carriage withdraws along the track, to provide a constant tensioning of the wire, whose excess length is thus progressively taken up in accordance with the depth of the cut which is made.
  • This arrangement of cutting machines for cutting blocks of stone in a quarry is particularly cumbersome and also requires long periods of time for setting up for operation and for dismantling (arranging and removing the tracks).
  • this arrangement does not allow the cutting operations to be controlled in a flexible way, owing to the presence of predetermined structural constraints, such as the tracks for the cutters.
  • the present invention arises from the consideration of these shortcomings and is intended to remedy them.
  • the main object of the present invention is therefore to provide a process for cutting blocks in stone quarries and the like, by which the overall dimensions of the cutting machines in the quarry can be limited, the idle time of the machines due to setting up and dismantling is eliminated, and the cutting operations can be controlled in a flexible way, without structural constraints due to any arrangement of the fixed installations of the cutting machines.
  • the object of the invention is also to provide a machine for cutting blocks in stone quarries and the like, for the application of the aforesaid process, which does not require a predetermined travel path, can provide a correct and constant pressure of the diamond wire on the material to be cut, does not require any preliminary preparatory work either on the stone to be cut or on the diamond cutting wire, and which reduces the wear on the wire and provides correct tension.
  • a further object is to provide a cutting machine as specified, which can be used to make a better quality of cut.
  • the present invention provides a process for cutting blocks in stone quarries and the like, whose principal characteristic forms the subject of Claim 1.
  • the invention also provides a machine for cutting blocks in stone quarries and the like, for the application of the aforesaid process, the essential characteristic of this machine being the subject of Claim 5.
  • the letter B indicates a block of stone cut directly from the rock deposit by a diamond wire cutting machine, according to the subject of the aforesaid patent application No. TO99A 000820 of 24.09.99 in the name of the present applicant, to which reference should be made for further description.
  • the block B is obtained from the deposit by means of what is known as the "primary cut”, but could also be produced by the dividing of a larger block by “secondary cut” operations, again carried out by the same cutting machine.
  • the said block B of stone is first cut into "slices" S, by through cuts executed along essentially vertical flat planes parallel to each other and orientated in a specified direction, after which each of the "slices" S of stone produced in this way is divided into a plurality of parallelepipedal pieces by other through cuts, executed along other planes which are essentially vertical and essentially orthogonal to the said first vertical planes.
  • a diamond wire cutting machine M having essentially a gantry structure with two uprights and a connecting cross-piece, positioned astride the block of stone B to be cut.
  • the said cutting machine is movable freely under its own power, by means of a powered carriage at the base of each upright, and advances in a step-by-step sequence along the said block B, in steps whose length is essentially equal to the width of each "slice" S to be cut from the block.
  • a diamond cutting wire wound in a closed loop around a plurality of pulleys supported by the gantry structure of the machine M is made to run in an essentially vertical plane which is essentially parallel to the median vertical plane intersecting the uprights and cross-piece of the gantry, engaging the block B from above with its lower run, which is kept under tension by the additional assistance of a pair of tensioning pulleys, one for each upright, which return the said lower run of the cutting wire at a level (an essentially horizontal plane) lying below the lower base of the said block B, which is supported for example by an embankment, in such a way that the said lower run of the cutting wire executes a through cut in the block B along the said vertical plane (the cutting plane), thus forming a corresponding "slice" S of stone from the block.
  • a diamond wire cutting machine M is provided; this machine is freely movable under its own power and has the same structure as the cutting machine M described above, and is positioned astride the "slice".
  • the said machine M advances in a step-by-step sequence along the said "slice", operating at each step and in the stationary state according to the same cutting sequence as that described with reference to the cutting of the block B, in such a way that the "slice” S of stone is cut into a plurality of essentially parallelepipedal pieces.
  • the constant and correct tensioning of the diamond cutting wire in the said cutting machine M is achieved by forming, in the cutting plane, a loop of the wire, which is run around a tensioning pulley which is positioned movably between two other pulleys which are preferably stationary.
  • the said tensioning pulley is made to run in a direction essentially parallel to the longitudinal direction of the cross-piece of the gantry structure of the cutting machine M, in such a way that the excess length of the cutting wire is taken up in the said loop of wire according to the depth of the cut which is made.
  • the tensioning pulley runs back to return to the initial position, thus reducing the said loop of wire and making available the length of cutting wire required for starting a new cutting operation.
  • Fig. 2 there are two identical cutting machines M which operate in conjunction, one dividing a block of stone B into "slices” S and the other cutting each "slice” S into essentially parallelepipedal pieces.
  • the cutting machine M having a gantry structure, comprises a telescopically extendible and retractable cross-piece and operates, during the cutting of the block B, with its cross-piece telescopically extended according to the width of the block, and, in the cutting of each "slice" formed from the block B, with its cross-piece telescopically retracted according to the width of the "slice".
  • the said machine M comprises a gantry structure with two column uprights 9 and a connecting cross-piece 14.
  • the said cross-piece 14 has a structure which is telescopically extendible and retractable, as are the columns 9, to adapt the machine M to the overall dimensions of the material to be cut, particularly, in this example, a block of stone 19 resting on a supporting embankment.
  • each Column 9 is supported on a corresponding remotely controlled powered tracked carriage 12.
  • the number 2 indicates the motor of each tracked carriage.
  • At least one powered tracked carriage 12 is provided with steering means (for example, two tracks driven independently) and is connected to the corresponding column 9 by a pivot, which allows it to rotate about the axis of the column.
  • the two tracked carriages 12 can therefore have two operating configurations: one in which they are positioned parallel to each other, permitting the movement of the machine M in a predetermined direction, and the other in which they are positioned essentially orthogonally to each other, permitting the telescopic extension or retraction of the cross-piece 14 of the machine M.
  • the columns 9 are telescopically extended and retracted by hydraulic jack means (which are known and are not illustrated).
  • the cutting plane of the machine M is vertical and parallel to the vertical median plane intersection both the columns 9 and the cross-piece 14.
  • a column 9 supports a fixed return pulley 17 at its top, above the cross-piece 14, while it also supports a powered pulley 4 which drives the diamond cutting wire 13 and is located below the said cross-piece 14.
  • the said powered pulley 4 is made to rotate by a unit consisting of a motor 7 and reduction gear 8.
  • the other column 9 supports a fixed return pulley which is essentially at the same position as the cross-piece 14.
  • each column 9 there is a corresponding tensioning pulley 18, supported at one end of a corresponding oscillating arm, extended within the gantry and pivoted at its other end with respect to the said column 9 so that it can oscillate about a fixed hinge axis which is orthogonal to the cutting plane.
  • the said tensioning pulleys 18 return the lower run of the cutting wire 13 at a level below the lower base of the said block 19, which is, for example, supported on an embankment, in such a way that the said lower run of the cutting wire 13 executes a through cut of the block 19 along the said vertical cutting plane.
  • a tensioning pulley 5 is supported so that it can be moved along the cross-piece 14 by means of a corresponding carriage 16 which can run on longitudinal guides housed in the cross-piece.
  • the shaft of the said powered pulley 5 is supported by the said carriage 16 and extends through a corresponding longitudinal aperture 15 provided in the cross-piece 14.
  • the structure of the tensioning pulley 5 with the corresponding carriage 16 which is movable on guides with respect to the cross-piece 14 is, for example, known from the international application of the present applicant published under No. WO 98/35802.
  • the said reversible gearmotor means 6 drive the said carriage 16 along the corresponding guides.
  • a loop of the cutting wire is formed in the said cutting plane, the cutting wire being run around the said tensioning pulley 5, placed so that it is movable along the cross-piece 14 between two adjacent fixed pulleys, the lower powered pulley 4, and the upper return pulley 17 supported on the column 9 next to the said tensioning pulley.
  • the said tensioning pulley 5 is made to run by means of the corresponding carriage 16 along the longitudinal guides provided in the cross-piece 14, in such a way that the excess length of the cutting wire is taken up in the said loop of wire according to the depth of the cut which is made.
  • the length of the operating travel of the carriage 16 is essentially equal to half of the length of the diamond wire which is taken up in the course of cutting.
  • the tensioning pulley runs back to return to the initial position, reducing the said loop of wire and thus making available the length of cutting wire required for starting a new cutting operation
  • the travel of the carriage 16 along the corresponding guides is controlled directly by an operator, or by automatic control means, according to the depth of the cut which is progressively made by the diamond wire 13.
  • the columns 9 are pivoted at their bases on tracked carriages 12, so that they oscillate about an axis 11, essentially horizontal and parallel to the cutting plane, while they are supported with respect to the carriages by means of corresponding hydraulic jacks 10 which are positioned in the form of struts between the columns and the corresponding carriages.
  • the oscillation of the gantry structure about the axis 11 is therefore determined by adjustment of the extension of the rods of the said jacks 10.
  • the number 1 indicates an oil hydraulic control- unit for controlling the functions of the hydraulic members of the machine M.
  • the present invention provides a process for cutting blocks in stone quarries and the like, which can limit the overall dimensions of the cutting machines in the quarry and eliminate the idle time of the machines due to setting up and dismantling, and which also enables the cutting operations to be controlled in a flexible way, without structural constraints due to any arrangement of the fixed installations of the cutting machines.
  • the invention also provides a machine for cutting blocks in stone quarries and the like, for the application of the aforesaid process, which has a high degree of operating stability, does not require a predetermined travel path, can provide a correct and constant pressure (adhesion) of the diamond wire on the material to be cut (thus preventing the slipping of the wire), does not require any preliminary preparatory work either on the stone to be cut or on the diamond cutting wire, and which also reduces the wear on the wire.
  • a further advantage of the invention is that it provides a cutting machine as specified, which can provide a cut of better quality, by operating with a cutting wire which is not arranged in a noose but in the form of a closed loop with a cutting run which engages the material to be cut in the form of an open arc, guided by means of a plurality of pulleys positioned in the cutting plane.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Revetment (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
EP01107416A 2000-04-06 2001-03-27 Procédé pour couper des blocs de pierre en carrièrres et machine mettant en oeuvre ce procédé Withdrawn EP1142680A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000TO000326A IT1320021B1 (it) 2000-04-06 2000-04-06 Procedimento di sezionamento di blocchi in cave di materiale lapideo e simili e macchina per la sua attuazione.
ITTO000326 2000-04-06

Publications (2)

Publication Number Publication Date
EP1142680A2 true EP1142680A2 (fr) 2001-10-10
EP1142680A3 EP1142680A3 (fr) 2004-02-11

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EP01107416A Withdrawn EP1142680A3 (fr) 2000-04-06 2001-03-27 Procédé pour couper des blocs de pierre en carrièrres et machine mettant en oeuvre ce procédé

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EP (1) EP1142680A3 (fr)
IT (1) IT1320021B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101294494B (zh) * 2008-06-20 2010-06-02 林天华 矿山石料仿形开采方法及其设备
WO2015199565A1 (fr) 2014-06-25 2015-12-30 FRAVIZEL - EQUIPAMENTOS METALOMECâNICOS, LDA. Machine à auto-propulsion de tranchage de roches au moyen d'un fil diamanté pour la transformation de dalles taillées en blocs
CN109465976A (zh) * 2018-12-17 2019-03-15 巫溪县碧玉石材有限公司 岩石开采切割装置
CN109531831A (zh) * 2018-12-17 2019-03-29 巫溪县宜嵘佳辉实业有限公司 石材开采切割打磨机
CN110271104A (zh) * 2018-03-14 2019-09-24 中铁二局集团有限公司 一种无砟道床轨道板上拱水平切割的装置及施工方法
IT202000020623A1 (it) * 2020-08-28 2022-02-28 Dazzini S R L Benna per automezzo dotato di un apparato di taglio di blocchi lapidei
CN114670351A (zh) * 2022-04-26 2022-06-28 天津理工大学 一种基于电磁控制的金刚石线张紧控制装置及其控制方法
AT524718A1 (de) * 2021-02-12 2022-08-15 Schwing Gmbh F Seilsäge
CN115816664A (zh) * 2022-12-28 2023-03-21 泉州市品河精密科技有限公司 石材切割方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112318731B (zh) * 2020-10-29 2023-04-25 泉州市利器金刚石工具有限公司 一种自动化绳锯机
CN114179229B (zh) * 2021-12-13 2023-11-14 中铁建工集团有限公司 金钢石绳锯链条切割工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR596906A (fr) * 1925-04-20 1925-11-04 Borschneck Et Thomas Machine à fil hélicoïdal pour le sciage des pierres
IT1180793B (it) * 1984-07-18 1987-09-23 Benetti Macchine Macchina a filo diamantato senza fine per l esecuzione di tagli chiusi in cave di pietre in particolare in cave di marmo a cielo aperto od in sotterraneo
FR2725931A1 (fr) * 1994-10-20 1996-04-26 Dg Construction Procede et dispositif pour couper une surface dans un bloc de matiere et machine comprenant un tel dispositif
DE19722123A1 (de) * 1997-05-27 1998-12-03 Wolfgang Mayer Seilsäge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR596906A (fr) * 1925-04-20 1925-11-04 Borschneck Et Thomas Machine à fil hélicoïdal pour le sciage des pierres
IT1180793B (it) * 1984-07-18 1987-09-23 Benetti Macchine Macchina a filo diamantato senza fine per l esecuzione di tagli chiusi in cave di pietre in particolare in cave di marmo a cielo aperto od in sotterraneo
FR2725931A1 (fr) * 1994-10-20 1996-04-26 Dg Construction Procede et dispositif pour couper une surface dans un bloc de matiere et machine comprenant un tel dispositif
DE19722123A1 (de) * 1997-05-27 1998-12-03 Wolfgang Mayer Seilsäge

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101294494B (zh) * 2008-06-20 2010-06-02 林天华 矿山石料仿形开采方法及其设备
WO2015199565A1 (fr) 2014-06-25 2015-12-30 FRAVIZEL - EQUIPAMENTOS METALOMECâNICOS, LDA. Machine à auto-propulsion de tranchage de roches au moyen d'un fil diamanté pour la transformation de dalles taillées en blocs
CN110271104A (zh) * 2018-03-14 2019-09-24 中铁二局集团有限公司 一种无砟道床轨道板上拱水平切割的装置及施工方法
CN110271104B (zh) * 2018-03-14 2021-10-01 中铁二局集团有限公司 一种无砟道床轨道板上拱水平切割的装置的施工方法
CN109465976A (zh) * 2018-12-17 2019-03-15 巫溪县碧玉石材有限公司 岩石开采切割装置
CN109531831A (zh) * 2018-12-17 2019-03-29 巫溪县宜嵘佳辉实业有限公司 石材开采切割打磨机
CN109465976B (zh) * 2018-12-17 2020-06-02 巫溪县碧玉石材有限公司 岩石开采切割装置
CN109531831B (zh) * 2018-12-17 2021-07-27 巫溪县宜嵘佳辉实业有限公司 石材开采切割打磨机
IT202000020623A1 (it) * 2020-08-28 2022-02-28 Dazzini S R L Benna per automezzo dotato di un apparato di taglio di blocchi lapidei
AT524718A1 (de) * 2021-02-12 2022-08-15 Schwing Gmbh F Seilsäge
CN114670351A (zh) * 2022-04-26 2022-06-28 天津理工大学 一种基于电磁控制的金刚石线张紧控制装置及其控制方法
CN115816664A (zh) * 2022-12-28 2023-03-21 泉州市品河精密科技有限公司 石材切割方法

Also Published As

Publication number Publication date
IT1320021B1 (it) 2003-11-12
EP1142680A3 (fr) 2004-02-11
ITTO20000326A0 (it) 2000-04-06
ITTO20000326A1 (it) 2001-10-06

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