WO1992021494A2 - A machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab - Google Patents

A machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab Download PDF

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Publication number
WO1992021494A2
WO1992021494A2 PCT/EP1992/001195 EP9201195W WO9221494A2 WO 1992021494 A2 WO1992021494 A2 WO 1992021494A2 EP 9201195 W EP9201195 W EP 9201195W WO 9221494 A2 WO9221494 A2 WO 9221494A2
Authority
WO
WIPO (PCT)
Prior art keywords
slabs
slab
cutting
cutting device
plane
Prior art date
Application number
PCT/EP1992/001195
Other languages
French (fr)
Other versions
WO1992021494A3 (en
Inventor
Oscar Fornasari
Original Assignee
Delta Engineering S.R.L.
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 Delta Engineering S.R.L. filed Critical Delta Engineering S.R.L.
Publication of WO1992021494A2 publication Critical patent/WO1992021494A2/en
Publication of WO1992021494A3 publication Critical patent/WO1992021494A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
    • 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
    • B28D1/005—Cutting sheet laminae in planes between faces
    • 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

Definitions

  • the subject of the present invention is a machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab, characterised in that it includes:
  • a cutting device with a diamond wire including a pair of pulleys supported for rotation about two parallel, horizontal axes and a diamond wire which passes around the pulleys in a closed loop within a vertical plane,
  • a conveyor line for transporting the slabs through the cutting device, including means for supplying a succession of marble slabs to the cutting device, each slab being kept in a vertical plane substantially coinciding with the plane of the loop of diamond wire so that each slab is cut and divided into two half-slabs,
  • Figure 1 is a schematic, elevational view of a machine according to the invention
  • Figure 2 is a plan view of the machine of Figure 1
  • Figure 3 is a perspective view of the machine of Figure
  • Figures 4-6 are sections taken on the lines IV-IV, V-V, and VI-VI of Figure 1- and
  • Figure 7 is a section taken on the line VII-VII of Figure 2 .
  • a machine for cutting marble slabs along a cutting plane parallel to the planes of the slabs is generally indicated 1.
  • the machine 1 includes a cutting device 2 with a fixed framework 3 which supports two pulleys 6, 7 for rotation about two parallel, horizontal axes 4, 5.
  • a diamond wire, of known type, indicated 8 passes around the pulleys 6, 7 in a closed loop within a vertical plane.
  • the structure of the diamond wire is not described in detail since, as already indicated, it may be of any known type and does not fall within the scope of the present invention.
  • the inventor has set up a diamond wire of particularly small diameter which enables the machine according to the invention to be used for cutting even very thin slabs of the order of a few millimeters thick to form half-slabs which may even be only 2 mm thick and which are then used to form marble ⁇ • sheets" for application as coverings to any surface, for example, to the walls of dwellings ⁇ r to furniture.
  • the axis 5 of the lower pulley 7 is fixed but the axis 4 is carried by a slide 9 which is movable on guides 10 and is operated in known manner (by means not described in detail herein) to adjust the tension of the diamond wire.
  • the machine 1 includes a conveyor line 11 constituted by a succession of rollers 12 driven by a motor 13.
  • the line 11 receives a succession of slabs L which are fed through the cutting device 2.
  • the slabs L are kept in the vertical plane by lateral supports 13 carrying rollers 14 which have vertical axes and engage the two opposite faces of each slab L ( Figure 4) .
  • the positions of the lateral supports 13 are adjustable relative to support bases 15 along a line transverse the slabs L.
  • two lateral, segmented belt conveyors 16 which are in frictional engagement with the opposite faces of the slab L being cut, urge the end edges of the slabs L against the wire and advance the slabs L during the cutting operation.
  • the two conveyors 16 are mounted on slides 17, the positions of which are adjustable relative to fixed supports 18 along a line transverse the slabs L, to enable adjustment for slabs of different thicknesses.
  • the two conveyors 16 are driven by motor means of known type which are not shown in detail since they do not fall within the scope of the present invention. Moreover, the elimination of these details makes the drawings more readily and easily understood.
  • Two steel plates 19, 20 disposed between the two parallel passes of the loop of diamond wire 8 and immediately behind its downstream pass (with reference to the direction of advance of the slabs L) serve to keep separate the two half-slabs L1J2 produced as a result of the cutting of a slab L and to prevent the half-slabs from contacting the downstream pass 8b of the diamond wire.
  • an unloading device 22 At the end of the conveyor line 11 is an unloading device 22, of any type, which serves to deposit the half-slabs Ll, L2 on a rack 23.
  • the unloading device is preferably also adapted to rotate one of the two half-slabs of each pair, as shown schematically in Figure 7, so that the rough faces of all the half-slabs Ll, L2 deposited on the rack 22 face in the same direction.
  • means may be provided at the loading end of the line 11 for automatically loading the slabs L onto the line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

A machine for cutting slabs of marble or similar material along a cutting plane parallel to the planes of the slabs includes a cutting device (2) with a diamond wire (8) which passes around two pulleys (6, 7) in a closed loop within a vertical plane, and a conveyor line (11) for transporting slabs (L) through the cutting device (2) in succession, each slab (L) being kept in a vertical plane substantially coinciding with the plane of the loop of diamond wire (8) so that each slab (L) is cut and divided into two half-slabs (L1, L2). The machine also includes means for loading the slabs (L) to be cut onto the loading end of the conveyor line and means for unloading the cut half-slabs (L1, L2) from the output end of the conveyor line.

Description

A machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab
The subject of the present invention is a machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab, characterised in that it includes:
- a cutting device with a diamond wire, including a pair of pulleys supported for rotation about two parallel, horizontal axes and a diamond wire which passes around the pulleys in a closed loop within a vertical plane,
- a conveyor line for transporting the slabs through the cutting device, including means for supplying a succession of marble slabs to the cutting device, each slab being kept in a vertical plane substantially coinciding with the plane of the loop of diamond wire so that each slab is cut and divided into two half-slabs,
- means for loading the slabs to be cut onto the loading end of the conveyor line, and
- means for unloading the cut half-slabs from the output end of the conveyor line.
The invention will now be described with reference to the appended drawings, provided purely by way of non-limiting example, in which:
Figure 1 is a schematic, elevational view of a machine according to the invention,
Figure 2 is a plan view of the machine of Figure 1,
Figure 3 is a perspective view of the machine of Figure
SUBSTITUTE SHEET 1 ,
Figures 4-6 are sections taken on the lines IV-IV, V-V, and VI-VI of Figure 1- and
Figure 7 is a section taken on the line VII-VII of Figure 2.
With reference to the drawings, a machine for cutting marble slabs along a cutting plane parallel to the planes of the slabs is generally indicated 1. The machine 1 includes a cutting device 2 with a fixed framework 3 which supports two pulleys 6, 7 for rotation about two parallel, horizontal axes 4, 5. A diamond wire, of known type, indicated 8, passes around the pulleys 6, 7 in a closed loop within a vertical plane. The structure of the diamond wire is not described in detail since, as already indicated, it may be of any known type and does not fall within the scope of the present invention. The inventor has set up a diamond wire of particularly small diameter which enables the machine according to the invention to be used for cutting even very thin slabs of the order of a few millimeters thick to form half-slabs which may even be only 2 mm thick and which are then used to form marble ■•sheets" for application as coverings to any surface, for example, to the walls of dwellings ςr to furniture.
The axis 5 of the lower pulley 7 is fixed but the axis 4 is carried by a slide 9 which is movable on guides 10 and is operated in known manner (by means not described in detail herein) to adjust the tension of the diamond wire.
EET The machine 1 includes a conveyor line 11 constituted by a succession of rollers 12 driven by a motor 13.
The line 11 receives a succession of slabs L which are fed through the cutting device 2.
Upstream of the cutting device, the slabs L are kept in the vertical plane by lateral supports 13 carrying rollers 14 which have vertical axes and engage the two opposite faces of each slab L (Figure 4) . The positions of the lateral supports 13 are adjustable relative to support bases 15 along a line transverse the slabs L.
Immediately upstream of the diamond wire 8 or, more precisely, of its active pass 8a, two lateral, segmented belt conveyors 16, which are in frictional engagement with the opposite faces of the slab L being cut, urge the end edges of the slabs L against the wire and advance the slabs L during the cutting operation. The two conveyors 16 are mounted on slides 17, the positions of which are adjustable relative to fixed supports 18 along a line transverse the slabs L, to enable adjustment for slabs of different thicknesses. The two conveyors 16 are driven by motor means of known type which are not shown in detail since they do not fall within the scope of the present invention. Moreover, the elimination of these details makes the drawings more readily and easily understood. Two steel plates 19, 20 disposed between the two parallel passes of the loop of diamond wire 8 and immediately behind its downstream pass (with reference to the direction of advance of the slabs L) serve to keep separate the two half-slabs L1J2 produced as a result of the cutting of a slab L and to prevent the half-slabs from contacting the downstream pass 8b of the diamond wire. Naturally, downstream of the cutting device, there are also lateral supports 21 with rollers 22 having horizontal axes and engaging the opposite faces of the pairs of half-slabs Ll, L2 to keep them in the vertical plane. At the end of the conveyor line 11 is an unloading device 22, of any type, which serves to deposit the half-slabs Ll, L2 on a rack 23. The unloading device is preferably also adapted to rotate one of the two half-slabs of each pair, as shown schematically in Figure 7, so that the rough faces of all the half-slabs Ll, L2 deposited on the rack 22 face in the same direction.
Similarly, means may be provided at the loading end of the line 11 for automatically loading the slabs L onto the line.
Naturally, the principle of the invention remaining the same, the details of construction and forms of embodiment may be varied widely with respect to those described and illustrated by way of example, without thereby departing from the scope of the present invention.

Claims

1. A machine for cutting slabs of marble or similar material along a cutting plane parallel to the planes of the slabs, characterised in that it includes:
- a cutting device (2) with a diamond wire, including a pair of pulleys (6, 7) supported for rotation about two parallel, horizontal axes (4, 5) and a diamond wire (8) which passes around the pulleys (6, 7) in a closed loop within a vertical plane,
a conveyor line (11) for transporting slabs (L) through the cutting device (2) , including means (12, 16) for supplying a succession of marble slabs (L) to the cutting device (2) , each slab (L) being kept in a vertical plane substantially coinciding with the plane of the loop of diamond wire (8) so that each slab (L) is cut and divided into two half-slabs (Ll, L2) ,
- means for loading the slabs (L) to be cut onto the loading end of the conveyor line, and
- means for unloading the cut half-slabs (Ll, L2) from the output end of the conveyor line.
2. A machine according to Claim 1, characterised in that the conveyor line includes a succession of motor-driven rollers (12) on which the slabs (L) are supported on edge, and lateral supports (13) , the positions of which are adjustable along a line transverse the planes of the slabs (L) and which have rollers with vertical axes, the rollers being in contact with the opposite faces of the slabs to keep them within the vertical plane.
3. A machine according to Claim 2, characterised in that the conveyor line also includes two lateral, segmented belt conveyors (16) which engage the opposite faces of the slab (L) immediately upstream of the cutting device (2) in order to advance them during the cutting operation.
4. A machine according to Claim 1, characterised in that the cutting device has means (9) for adjusting the tension of the diamond wire.
5. A machine according to Claim 1, characterised in that the unloading means include means for rotating one of the two half-slabs of each pair (Ll, L2) , downstream of the cutting device, so as to deposit all the half-slabs on a collecting rack (23) with their rough faces facing in the same direction.
6. A machine according to Claim 1, characterised in that it has two plates (19, 20) extending between the two passes of the loop of. diamond wire (8) within the plane of the loop, immediately downstream of the loop with reference to the direction of advance of the slabs
(L) , for keeping apart the two half-slabs (Ll, L2) formed from the slab being cut at the time in question.
The whole substantially as described and illustrated and for the purposes specified.
PCT/EP1992/001195 1991-05-29 1992-05-29 A machine for cutting a slab of marble or similar material along a cutting plane parallel to the plane of the slab WO1992021494A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITT091A000399 1991-05-29
ITTO910399A IT1246076B (en) 1991-05-29 1991-05-29 MACHINE FOR CUTTING A MARBLE SLAB OR SIMILAR MATERIAL ACCORDING TO A CUTTING PLAN PARALLEL TO THE PLATE OF THE SLAB

Publications (2)

Publication Number Publication Date
WO1992021494A2 true WO1992021494A2 (en) 1992-12-10
WO1992021494A3 WO1992021494A3 (en) 1993-02-04

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Family Applications (1)

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IT (1) IT1246076B (en)
WO (1) WO1992021494A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029456A1 (en) * 1997-12-09 1999-06-17 Wolfgang Mayer Cable saw with at least two simultaneous sawing cable shafts
EP1103360A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone
EP1103359A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone
WO2003004235A1 (en) * 2001-07-04 2003-01-16 Co.Fi.Plast S.R.L. Method and system for dividing blocks of stone into slices using one or more cutting tools
KR101298137B1 (en) 2011-06-17 2013-08-20 차구익 Overhead equipment of mobile phone main tempered glass

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR10115E (en) * 1908-10-12 1909-05-01 Charles Loret Improvements to helical wire devices for sawing stones
DE523885C (en) * 1930-05-04 1931-04-29 Otto Wiedemann Rock saw with one or more cutting truemers of endless cables
US2584837A (en) * 1947-05-20 1952-02-05 George E Zweifel & Company Hydraulic resaw setwork
FR1192089A (en) * 1958-03-01 1959-10-23 Vertical sawing machine for stone and granite, which can function as a diamond disc sawing machine
EP0019419A1 (en) * 1979-05-09 1980-11-26 Patrick Terence Bourke Method of and apparatus for cutting stone panels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR10115E (en) * 1908-10-12 1909-05-01 Charles Loret Improvements to helical wire devices for sawing stones
DE523885C (en) * 1930-05-04 1931-04-29 Otto Wiedemann Rock saw with one or more cutting truemers of endless cables
US2584837A (en) * 1947-05-20 1952-02-05 George E Zweifel & Company Hydraulic resaw setwork
FR1192089A (en) * 1958-03-01 1959-10-23 Vertical sawing machine for stone and granite, which can function as a diamond disc sawing machine
EP0019419A1 (en) * 1979-05-09 1980-11-26 Patrick Terence Bourke Method of and apparatus for cutting stone panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029456A1 (en) * 1997-12-09 1999-06-17 Wolfgang Mayer Cable saw with at least two simultaneous sawing cable shafts
EP1103360A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone
EP1103359A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone
WO2003004235A1 (en) * 2001-07-04 2003-01-16 Co.Fi.Plast S.R.L. Method and system for dividing blocks of stone into slices using one or more cutting tools
KR101298137B1 (en) 2011-06-17 2013-08-20 차구익 Overhead equipment of mobile phone main tempered glass

Also Published As

Publication number Publication date
ITTO910399A1 (en) 1992-11-29
IT1246076B (en) 1994-11-07
ITTO910399A0 (en) 1991-05-29
WO1992021494A3 (en) 1993-02-04

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