EP1963065B1 - Maschine zum optimierten schneiden von platten aus stein oder lithoidmaterial - Google Patents

Maschine zum optimierten schneiden von platten aus stein oder lithoidmaterial Download PDF

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Publication number
EP1963065B1
EP1963065B1 EP06832222A EP06832222A EP1963065B1 EP 1963065 B1 EP1963065 B1 EP 1963065B1 EP 06832222 A EP06832222 A EP 06832222A EP 06832222 A EP06832222 A EP 06832222A EP 1963065 B1 EP1963065 B1 EP 1963065B1
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Prior art keywords
cutting
bench
machine
strips
slabs
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EP06832222A
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English (en)
French (fr)
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EP1963065A2 (de
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Luca Toncelli
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/04Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
    • B28D7/043Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work the supporting or holding device being angularly adjustable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/043Gantry type sawing machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/048Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with a plurality of saw blades

Definitions

  • the present invention relates to the optimized cutting of slabs of stone or stone-like material and more specifically to a machine as per the preamble of claim 1 for performing this operation.
  • a machine is known from DE 101 09 007 A1 .
  • the spindles supporting the cutting tools (preferably in the form of disks with diamond-particle segments) were mounted slidably on a bridge arranged perpendicularly with respect to the direction of entry of the slabs, the axis of rotation of the disks being parallel to the beam.
  • the tools were able to be moved and positioned simultaneously and independently of each other, with the only obvious constraint of the dimensions of each supporting spindle.
  • a slab support surface or bench which is rotatable about its vertical axis, thus allowing rotation of the slab resting on the bench depending on the direction of the cuts to be made.
  • An optical reading device arranged at the feeding side of the machine was connected to the computer controlling the machine and able to detect both the contour of the rough slabs and any surface defects thereon.
  • the rough slab was able to be divided up into two or more quadrants, for each of which a specific cutting procedure is defined so to ensure an optimum utilization of the slab portion contained in the said quadrant, with the possibility of performing a different cutting procedure from each quadrant.
  • longitudinal trimmings For example, it is possible to proceed by dividing up the rough starting slab through the initial cutting pass into longitudinal strips ("longitudinal” is understood as meaning normally the direction parallel to the larger dimension of the slab and "transverse” as the direction parallel to the smaller dimension), obviously discarding as waste the end lateral zones of an irregular contour, which are referred to as longitudinal trimmings.
  • the bench is rotated through 90° and the longitudinal strips are in turn individually cut into tiles, which may have dimensions different from each other, so as to optimize the utilization of the slab, eliminating obviously as waste the extreme end zones with an irregular contour, referred to as transverse trimmings. It is also possible to start with cutting the slab into transverse strips and then reduce them into tiles.
  • Italian patent No. 1 247 367 discloses an apparatus consisting of a single-block unit for automatically cutting slabs of stone material, the apparatus being able to perform automatically both sensing of the profile and any surface defects of the rough slab, as well as optimization of the cutting operations into tiles and strips, using, however, one or two spindles supporting a cutting tool.
  • the spindles are arranged in the apparatus on the basis of two coordinates in order to perform the single cutting passes.
  • the cutting station comprises a bench rotatable about a vertical which is positioned underneath the group of vertical spindles, each of which supports a cutting tool acting in a vertical plane and has the possibility of being positioned independently with respect to the other cutting tools.
  • the spindles are mounted on a support beam movable in a direction parallel to said feeding direction of the slab so that the axes of rotation of the cutting disks are parallel to the beam.
  • the spindles are also mounted so that both their position and their relative distance may be adjusted
  • the strips are placed again on the roller surface situated upstream and means for partially intercepting the strips are activated so that only one or more selected strips are subsequently repositioned on the bench, the bench being rotated about its vertical axis.
  • the beam on which the spindles are mounted, and consequently the cutting tools in the suitable arrangement is actuated so as to cut through a plurality of passes in a direction perpendicular to the previous direction the strip or strips lying on the bench, so that the said strip or strips are divided up into tiles.
  • the intercepting means consist substantially of a transversely movable bar able to clamp the front end of the strips to be retained on the conveyor belt.
  • means for compaction of the strips which are intercepted also cooperate with the intercepting means.
  • This machine obviously has represented a step forward compared to previous machines, but it would obviously be advantageous from an industrial point of view to simplify its operation and increase its output.
  • the present invention achieves precisely these objects and proposes a machine for cutting rough slabs, comprising the combination of features of claim 1.
  • said handling means comprise a support provided with a plurality of suction cups connected to a vacuum source, said support being attached to a second beam through driving means so as to vertically displace the suction cups, the said second beam being arranged movably on the said supporting means parallel to the first beam either independently from or integrally with the said first beam
  • an auxiliary bench is also provided for temporarily storing the strips removed from said primary bench and the said handling means ensure the transfer of the strips from the primary to the auxiliary bench and vice versa.
  • the present invention fully achieves the above mentioned objects.
  • the machine has an increased productivity and can be fit into a complete line for processing rough slabs, in particular the slabs leaving a polishing machine.
  • the machine comprises a feeding section A, a cutting section B and a discharge section C.
  • conveyor means such as a motor-driven rollerway 12 are associated with a device 14 known per se for detecting the contour and any surface defects of the rough slabs 16 which are fed and then moved forwards in the direction indicated by the arrow F.
  • the discharge section C comprises a conveyor belt 18 which is movable on wheels (not shown) so as to be able to be positioned next to the rotatable primary bench and to receive from the cutting section B the cut tiles 20 together with any trimmings and direct them for storage or further finishing operations.
  • Smaller belts may be envisaged in cascade with the conveyors 34 and 18 for collecting and conveying the trimmings (i.e. the waste of the cutting operations) into suitable bins.
  • a plurality of spindles (seven in number as shown in the illustration of Fig. 2 ) generally designated by the reference numeral 30 are mounted on the first beam 28.
  • the spindles 30 are not described in further detail since they are well-known in the technology of the field.
  • a rotary disk 32 for example of the type comprising diamond particles.
  • Each disk 32, having an axis parallel to the beam 28 is rotatably driven by motor means (not shown).
  • the spindles 30 are displaceable along the first beam 28 so as to assume desired positions in which they are fixed to the beam in order to perform the cutting passes.
  • the distance between two adjacent spindles 30, and consequently between two cutting disks 32 defines the width of the slab strips and of the resulting tiles, respectively (when one or more strips are cut into tiles).
  • the first beam 28 is movable along the travelways 24 and 26 so that it performs alternate displacements in the direction of the double arrow F1, as shown in Fig. 2 .
  • a cutting surface or primary bench 34 is positioned in the zone delimited by the travelways 24 and 26, underneath the first beam 28 and the bottom ends of the cutting disks 32, said primary bench being preferably in the form of a conveyor belt made of multiple layers, the upper one of which is made of rubber or a similar material with a thickness of 5 ⁇ 8 mm, able to absorb the action of the cutting disks at the end of the cutting action through the thickness of the slab.
  • the bench 34 is mounted on a base 36 - shown in broken lines in Fig. 2 - which is in turn rotatable about a vertical axis.
  • the two travelways 24, 26 support a second beam 38 so that it is also movable in the direction of the arrow F1.
  • a support 40 from the bottom surface of which a plurality of suction cups 42 project, is attached to the second beam 38, said suction cups being arranged in one or more rows and connected in a manner known per se to a vacuum source which can be activated on demand when the support 40 has to handle (namely to grip, raise, lower, transfer) a strip obtained from the starting slab.
  • the support 40 is attached to the second beam 38 by means of two vertical guides with two actuators of the cylinder and piston type which are generally designated by the reference numeral 39, the cylinder thereof being fixed to the beam 38 while the free end of the piston rod is fixed to the support 40.
  • auxiliary bench 44 which is positioned opposite and below the second beam 38, this beam being in this manner able to handle and displace the strips between the primary bench 34 and the auxiliary bench 44.
  • the second beam 38 has a driving system separate from that of the first beam 28 so as to be displaceable along the travelways 24, 26.
  • the second beam 38 may be attached to the first beam 28 and moved integrally therewith by the drive system ensuring the displacement of the first beam.
  • Fig. 4 shows a slab 16 which is transferred from the section A onto the primary bench 34 in the section B by means of the motor-driven rollerway 12.
  • the primary bench 34 is then rotated through +90° so that the slab 16 assumes the configuration shown in Fig. 5 .
  • the spindles 30 have been positioned so as to obtain a plurality of strips (designated by the reference numbers 46a-f) from the cutting of the slab 16. Obviously the strips can be obtaind from a plurality of passes of the cutting disks 30.
  • the side edges namely the longitudinal edges of the slab 16
  • the side edges are also ground during the cutting operation. In this manner slivers which are referred to as longitudinal trimmings and as narrow as possible - depending on the edge irregularities of the slab - are eliminated as waste.
  • the primary bench 34 on which lies the slab is rotated through -90°, i.e. is brought back into the starting position, so that the strips 46(a-f) obtained from cutting the slab are arranged parallel to the first beam 28 on which the spindles 30 are mounted, as shown in Fig. 6 .
  • the second beam 38 is also displaced so that the support 40 carrying the suction cups 42 is positioned on the strips 46(a-f) to be transferred onto the auxiliary bench 44.
  • the support 40 In each movement the support 40 is displaced together with the second beam 38 until the suction cups 42 are in vertical alignment with the desired strip or strips.
  • the actuators 39 are then driven to cause a downward movement of the support 40 until the suction cups 42 engage with the upper surface of the said strip or strips.
  • the vacuum pump is energized so that the suction cups 42 grip firmly the strip or strips.
  • the actuators 39 are then driven and the strip or strips are lifted from the primary bench 34 and the second beam 38 is displaced so as to bring the removed strip into a selected zone of the auxiliary bench 44.
  • the actuators 39 are lowered again and, when the strip or strips rest on the bench 44, the vacuum is released so that the strip or strips are disengaged from the suction cups.
  • the operation is repeated as many times as required so that at the end there is one or more strips left on the primary bench 34 after the other strips have been transferred onto the auxiliary bench 44. It is also possible displacing, if necessary, a single strip onto the auxiliary bench 44 and spacing from each other the strips left on the primary bench 34.
  • the first beam is displaced along the travel ways 24, 26. In this manner the strips are cut in the transverse direction so as to obtain a plurality of tiles or the like 48, as shown in Fig. 8 .
  • the primary bench 34 is in the form of a conveyor belt
  • actuation thereof causes discharging of the tiles 48 onto the conveyor belt 18 of the section C which in the meantime has moved up toward the said bench.
  • the thin transverse trimmings at the ends of the strips fall into the gap between the primary bench 34 and the conveyor belt 18 and are either collected in a bin or removed by a conveyor (not shown) dedicated to the waste.
  • the suction-cup support 40 picks up and transfers the strips from the auxiliary bench 44 back onto the primary bench 34. Obviously the transfer may involve a single strip or more or even all of the strips.
  • the machine is in the condition shown in Fig. 9 and the transverse cutting of the strips is performed as already described above, followed by discharging of the resultant tiles and removal of the corresponding transverse trimmings.
  • the auxiliary bench 44 can be movably mounted so as to be displaceable towards and away from the primary bench 34 so as to reduce the path of the strips with the suction-cup support 40 and the second beam 38 and consequently shorten the duration of the machining cycles.
  • auxiliary bench 44 instead of the auxiliary bench 44, if there is a sufficient room availability, it is also possible to use a primary bench 34 which is sufficiently wide, i.e. transversally large, so as the strips are allowed to be spaced from each other without the transverse cutting passes performed on one of strip interferes with the adjacent strip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Crushing And Grinding (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (6)

  1. Maschine zum Schneiden von groben Fliesen, mit:
    - einer Hauptbank (34), die um eine vertikale Achse drehbar ist und in der Ruheposition stromaufwärts mit einer Einrichtung (12) zum Vorschieben von zu schneidenden, groben Fliesen (16) und stromabwärts mit einer Einrichtung (18) zum Abgeben der durch die Schneidvorgänge erhaltenen Produkte ausgerichtet ist;
    - einem Satz von Spindeln (30), die jeweils ein Werkzeug in Gestalt einer Scheibe (32) stützen, die das Schneiden in einer festen Schneidrichtung durchführen kann;
    - einem ersten Träger (28), an dem die Spindeln (30) in individuell einstellbaren Anordnungen so angebracht sind, dass die Drehachse der Schneidscheiben (32) parallel zu dem Träger (28) ist, wobei der erste Träger an einer bewegbaren Stützeinrichtung (24, 26) angebracht ist, um Verschiebungen durchzuführen, bei denen die Spindeln (30) und die dazugehörigen Schneidscheiben (32) die Hauptbank (34) quer passieren;
    - einer Handhabungseinrichtung (40, 42) zum Transportieren der Produkte (46a-f), die durch das bei den Fliesen (16) durchgeführten Schneiden erhalten werden,
    die Maschine ist dadurch gekennzeichnet, dass die bewegbare Stützeinrichtung (24, 26) so angeordnet ist, dass der erste Träger (28) parallel zu jener Richtung (F) ist, entlang der die groben Fliesen (16) zu der Hauptbank (34) vorgeschoben werden.
  2. Maschine zum Schneiden von groben Fliesen gemäß Anspruch 1, dadurch gekennzeichnet, dass die Handhabungseinrichtung eine Stütze (40) aufweist, die mit einer Vielzahl von Saugnäpfen (42) versehen ist, die mit einer Unterdruckquelle verbunden sind, wobei die Stütze (40) an einem zweiten Träger (38) durch eine Antriebseinrichtung (39) angebracht ist, um so die Saugnäpfe (42) vertikal zu verschieben, wobei der zweite Träger (38) an der Stützeinrichtung (24, 26) parallel zu dem ersten Träger (28) entweder unabhängig von oder einstückig mit dem ersten Träger bewegbar angeordnet ist.
  3. Maschine zum Schneiden von groben Fliesen gemäß Anspruch 1, dadurch gekennzeichnet, dass sie eine Hilfsbank (44) zum vorübergehenden Aufnehmen von Streifen (46a-f) aufweist, die von der Hauptbank (34) entnommen werden, und wobei die Handhabungseinrichtung (40, 42) den Transport der Streifen von der Hauptbank (34) zu der Hilfsbank (44) und umgekehrt bewirkt.
  4. Maschine zum Schneiden von groben Fliesen gemäß Anspruch 2, dadurch gekennzeichnet, dass die Stützeinrichtung aus einem Rahmen mit zwei parallelen Fahrtwegen (24, 26) besteht, an denen der erste und der zweite Träger (28, 38) gleitbar angebracht sind.
  5. Maschine zum Schneiden von groben Fliesen gemäß Anspruch 2, dadurch gekennzeichnet, dass der zweite Träger (38), der die Handhabungseinrichtung (40, 42) stützt, unabhängig von dem ersten Träger (28) bewegbar ist, an dem die Spindeln (30) angebracht sind.
  6. Maschine zum Schneiden von groben Fliesen gemäß Anspruch 3, dadurch gekennzeichnet, dass die Hilfsbank (44) hinsichtlich der Hauptbank (34) bewegbar angebracht ist.
EP06832222A 2005-12-19 2006-12-12 Maschine zum optimierten schneiden von platten aus stein oder lithoidmaterial Active EP1963065B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000198A ITTV20050198A1 (it) 2005-12-19 2005-12-19 Macchina per il taglio ottimizzato di lastre di materiale lapideo o litoide.
PCT/IB2006/055059 WO2007072464A2 (en) 2005-12-19 2006-12-12 Machine for optimized cutting of slabs in stone or lithoid material

Publications (2)

Publication Number Publication Date
EP1963065A2 EP1963065A2 (de) 2008-09-03
EP1963065B1 true EP1963065B1 (de) 2010-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06832222A Active EP1963065B1 (de) 2005-12-19 2006-12-12 Maschine zum optimierten schneiden von platten aus stein oder lithoidmaterial

Country Status (7)

Country Link
EP (1) EP1963065B1 (de)
AT (1) ATE477901T1 (de)
DE (1) DE602006016331D1 (de)
ES (1) ES2349673T3 (de)
IT (1) ITTV20050198A1 (de)
PT (1) PT1963065E (de)
WO (1) WO2007072464A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20080264A1 (it) * 2008-11-12 2010-05-13 Bresciana Marmi S R L Di Giuseppe Stefani Societa Elemento modulare per il rivestimento di superfici e metodo di produzione di detto elemento
ITAR20090023A1 (it) * 2009-04-24 2010-10-25 Roberto Squarcialupi Fresatrice a ponte, particolarmente per la lavorazione di lastre di marmo
ITVI20110165A1 (it) * 2011-06-23 2012-12-24 Donatoni Macchine S R L Sistema per il taglio di lastre in materiale lapideo e metodo d'uso di tale sistema
CN102390080B (zh) * 2011-10-18 2013-07-24 黄炳福 发泡混凝土砌块切割生产线
CN102350739B (zh) * 2011-10-18 2014-06-18 黄炳福 高产低噪发泡混凝土切割机
ITVI20130071A1 (it) * 2013-03-15 2014-09-16 Maema S R L Unipersonale Macchina multiutensile per la lavorazione di prodotti in materiale lapideo
IT201700066629A1 (it) * 2017-06-15 2018-12-15 Raimondi Spa Sistema di taglio per lastre
IT201800002493A1 (it) * 2018-02-08 2019-08-08 Bmr S P A Macchina per la separazione di piastrelle da una lastra ceramica

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247367B (it) * 1991-02-28 1994-12-12 Luca Toncelli Centro monoblocco per taglio automatico di lastre di pietra come marmo, granito e simili
DE10109007B4 (de) * 2001-02-23 2006-03-02 Löffler Maschinenbau GmbH Kreissägeanlage

Also Published As

Publication number Publication date
WO2007072464A2 (en) 2007-06-28
ES2349673T3 (es) 2011-01-10
DE602006016331D1 (de) 2010-09-30
ITTV20050198A1 (it) 2007-06-20
ATE477901T1 (de) 2010-09-15
WO2007072464A3 (en) 2007-10-18
EP1963065A2 (de) 2008-09-03
PT1963065E (pt) 2010-10-21

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