EP0895842B1 - Maschine zum Aufschneiden von Platten aus verschiedenen Materialien wie Marmor, Keramik, Terrakotta, Sandstein, Glass oder dergleichen in Mosaiksteinen - Google Patents

Maschine zum Aufschneiden von Platten aus verschiedenen Materialien wie Marmor, Keramik, Terrakotta, Sandstein, Glass oder dergleichen in Mosaiksteinen Download PDF

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Publication number
EP0895842B1
EP0895842B1 EP98114018A EP98114018A EP0895842B1 EP 0895842 B1 EP0895842 B1 EP 0895842B1 EP 98114018 A EP98114018 A EP 98114018A EP 98114018 A EP98114018 A EP 98114018A EP 0895842 B1 EP0895842 B1 EP 0895842B1
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EP
European Patent Office
Prior art keywords
blades
slab
carriages
rails
machine according
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.)
Expired - Lifetime
Application number
EP98114018A
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English (en)
French (fr)
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EP0895842A2 (de
EP0895842A3 (de
Inventor
Maurizio Placuzzi
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.)
Sicis Srl
Sicis International Srl
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Sicis Srl
Sicis International Srl
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Publication date
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Publication of EP0895842A2 publication Critical patent/EP0895842A2/de
Publication of EP0895842A3 publication Critical patent/EP0895842A3/de
Application granted granted Critical
Publication of EP0895842B1 publication Critical patent/EP0895842B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working 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
    • B28D1/048—Working 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
    • 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
    • B28D1/04—Working 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
    • B28D1/047—Working 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 the work mounted on a carriage

Definitions

  • the present invention relates to a machine for cutting various materials, such as marble, ceramics, terracotta, sandstone, glass and the like, into tesserae.
  • slab alone will be used in the continuation of the description for the sake of convenience; this term denotes herein a slab of any one of the above materials.
  • the aim of the present invention is to provide a machine which allows to achieve a higher performance than conventional machines from both a quantitative and a qualitative point of view.
  • an object of the present invention is to provide a machine which can work on any kind of material and can cut tesserae of any size without causing chipping or breakage of the tesserae.
  • Another object of the present invention is to provide a machine which is constructively simple and inexpensive and is capable of coping with the intense mechanical stresses to which it is subjected during work.
  • the machine comprises a framework which is composed of vertical posts 1 connected, in an upward region and in a downward region, by frames 2 and 3 respectively.
  • the posts 1, above the lower frame 2, are mutually connected by cross-members 4 which form the sides of a square on which profiled elements 5 are fixed.
  • the profiled elements have a C-shaped cross-section which is open towards the inside of the square delimited by said profiled elements.
  • the cross-members 4 rigidly support a structure, generally designated by the reference numeral 6, which lies inside the square formed by the profiled elements 5.
  • the structure 6 supports a square secondary frame 7, to the sides of which profiled-elements 8 are fixed externally; the profiled elements 8 have a C-shaped cross-section which is open towards the outside, i.e., towards the profiled elements 5.
  • the sides of the squares formed by the profiled elements 5 and 8 are mutually parallel and co-planar, so that the latter form the rails for the sliding of a set of four carriages 9, 10, 11, and 12.
  • the carriages 9, 10, 11 and 12 are pushed along the rails 5 and 8 by a movement unit, generally designated by the reference numeral 13, which is composed of a drum 14 which is rotatably supported about a vertical axis A on the frame 2.
  • a ring gear 15 is rotationally rigidly coupled to the drum 14 and a pinion 16 meshes therewith.
  • the pinion 16 is keyed on a vertical shaft 17, which is supported in the frame 2 and on which a sprocket 18 is also keyed; a chain 19 meshes with said sprocket and is driven by a gearmotor 20 mounted on the framework.
  • each cylinder 21 is supported in brackets 22 which are welded on the outside of the drum 14 and has a stem 23 which protrudes to the side of a respective arm 24 which cantilevers out from the top of the drum 14.
  • the arms 24 form a sort of cross, and sliding guides 25 are fixed thereon for respective sliding blocks 26 which are articulately coupled to the ends of the stems 23 of the jacks.
  • the carriages 9-12 are supported on the sliding blocks 26 so that they can rotate about vertical axes.
  • each carriage 9-12 comprises a square base 27 from which a pivot 28 protrudes downward for articulation in the respective sliding block 26.
  • the platform 31 comprises a seat for accommodating a slab B, which is formed by a slab supporting surface 32, by two parallel longitudinal walls 33 and by a transverse wall 34 which joins, at one end, the longitudinal walls 33.
  • the walls 33 and 34 and the supporting surface 32 are affected by transverse slots 35 and longitudinal slots 36 which are mutually perpendicular and are meant to allow the passage of the cutting blades, as will become apparent hereinafter.
  • Guiding bushes 37 for a pair of parallel rods 38 are rigidly coupled to the base 27, below the platform 33.
  • the rods are perpendicular to the wall 34 and are connected, on the side lying furthest from the wall 34, by a cross-member 39.
  • the cross-member 39 can be actuated along the bushes 37 by means of a hydraulic jack, whose cylinder 40 is fixed to the base 27 below the platform 31 and whose stem 41 is rigidly coupled to the cross-member 39.
  • a plurality of fingers 42 protrude from the upper edge of the cross-member 39, are bent at right angles parallel to the rods 38 and are separated by gaps which are aligned with the longitudinal slots 36 to allow the passage of the cutting elements.
  • the fingers 42 form a pusher which is meant to lock a slab B accommodated in the seat formed by the walls 33 and 34 against the opposite transverse wall 34.
  • two cutting units 43 and 44 are provided which are arranged above the movement plane of the carriages 9-12.
  • Each unit comprises a cutting element which is composed of a pack of circular blades 45, 46 keyed on a horizontal shaft 47, 48 which protrudes radially from the rotation axis A of the drum 14.
  • the shaft 47 of the pack of blades of the cutting unit 43 is aligned along an axis C which is perpendicular to one side of the rails 5, 8 and intersects the axis A, while the shaft 48 of the pack of blades of the second cutting unit 44 is aligned along an axis D which is rotated through 90° with respect to the preceding axis C.
  • the two shafts 47, 48 of the two units 43, 44 like the respective packs of blades 45 and 46, are mutually perpendicular.
  • the shafts 47 and 48 are supported in respective supports 49 and 50 which are fixed to the frames 5 and 7 and at a level at which the circular blades 45, 46 are substantially tangent, with their lower edge, to the supporting surface 32 for the slab B.
  • Respective pulleys 51, 52 are keyed on the inner ends of the shafts 47 and 48, and transmission belts 53, 54 are wound on said pulleys; said belts receive their motion from electric motors 55, 56 which are mounted on brackets rigidly coupled to the framework 1.
  • each pack of rotating blades is protected by an overlying hood 57, 58.
  • the slab B to be cut into tesserae is placed in the seat of the carriage that is in the position E, which faces the cutting unit 43 and is designated by the reference numeral 10 in Figure 2.
  • the carriage 10 pushed by the arm 24, moves in the direction F until it reaches the corner G formed by the rails 5 and 8.
  • the respective jack 21, 23 extends in order to follow the sliding of the sliding block 26 imposed by the engagement of the rails 5, 8.
  • the jack 21, 23 is activated and, by producing the return movement of the sliding block 26, in combination with the rotation applied by the drum 14, forces the carriage 10 to move in the direction H until it reaches the position I (the position of the carriage 11 in Figure 2), beyond which the jack 21, 23 extends further until the corner L is reached.
  • the jack 21, 23 is activated so as to retract, in order to allow the carriage to move in the direction M.
  • the slab B passes through the pack of rotating blades 45, which cut the slab into strips as wide as the gap between the blades. The strips, however, remain locked between the fingers 42 and the opposite wall 34.
  • the carriage after deactivating the jack 21, 23, reaches the corner N and then continues in the direction O.
  • the jack 21, 23 is activated until the carriage reaches the position in which alignment with the axis D occurs; said jack is deactivated until the corner Q is reached.
  • the strips by passing under the pack of blades 46, are cut transversely so as to form square tesserae which continue to rest on the surface 32.
  • the tesserae due to the thickness of the cutting blades, remain loose and can be removed during the subsequent travel from the corner Q to the position E, for example by means of suction elements so as to allow the placement of a new slab.
  • Loading of a new slab B can of course occur at any point along the path from the corner Q to the corner L.
  • the outer rails 5, at the corners G, L, N and Q, have cutouts 59 to allow the rollers 29 arranged on the outer sides of the carriages to leave one rail 5 and respectively engage the adjacent rail 5.
  • the inner rails 8 are open longitudinally at the corners in order to allow the rollers 29 arranged on the inner sides of the carriages to leave the rails 8.
  • L-shaped extension surfaces 60 cantilever out from the rails; the last of the rollers that leave the respective inner rail and the first of the rollers that must engage the subsequent inner rail continue to rest on the extension surfaces 60 temporarily.
  • Figure 6 illustrates a different embodiment in which the platform 31 is mounted rotatably on the base 27 so as to rotate about the axis 61.
  • a free roller 62 which, by engaging the profile of a stationary cam 63, actuates the tilting of the platform and therefore the unloading of the tesserae into an underlying collection region.
  • the cam 63 is arranged along a segment which lies between the corners Q and G or G and L, upstream of the region where a new slab B is loaded onto the carriage from which the tesserae have been removed beforehand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (8)

  1. Maschine zum Schneiden von verschiedenen Materialien wie etwa Marmor, Keramik, Terrakotta, Sandstein, Glass und ähnlichem zu Mosaiksteinchen, gekennzeichnet durch: Führungseinrichtungen, die als Gleitschienen eine äußere quadratische Schiene (5) und eine innere quadratische Schiene (8) umfassen, die eine quadratische Konfiguration mit zueinander parallelen Seiten bilden, eine Vielzahl von Wägen (9-12), die jeweils Einrichtungen (31) zum Stützen einer Platte (B) aufweisen und auf den Schienen gleiten können, Einrichtungen (13, 21, 23) zum Bewegen der Vielzahl von Wägen (9-12) entlang der Schienen (5, 8), sodass die Platten auf den Halteeinrichtungen (31) während des gesamten durch die Schienen vorgesehenen Pfades dieselbe Ausrichtung behalten, und zwei Plattenschneideelemente (43, 44), die entlang von zwei zueinander senkrechten Seiten des Quadrats angeordnet sind, wobei jedes Schneideelement durch eine Anordnung von Klingen (45, 56) gebildet wird, die sich um eine zu der entsprechenden Seite senkrechte Achse drehen.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Gleitschienen durch Profilelemente mit jeweils einander zugewandeten C-förmigen Querschnitten gebildet werden.
  3. Maschine nach Anspruch 2, dadurch gekennzeichnet, dass die Einrichtungen zum Bewegen der Wägen umfassen: eine Trommel (14), die um eine vertikale Achse drehbar gehalten wird und mit einer kontinuierlichen Bewegung betätigt wird, einen Satz von vier Armen (24), die zueinander senkrecht ausgerichtet sind und radial fest mit der Trommel (14) verbunden sind, wobei jeder Arm gleitend einen entsprechenden Gleitblock (26) hält, einen Satz von vier hydraulischen Hebevorrichtungen (21, 23), die auf der Trommel (14) befestigt sind, wobei jede der Hebevorrichtungen (23) mit einem entsprechenden Gleitblock (26) verbunden ist, wobei die Wägen (9-12) auf den Gleitblöcken gehalten werden, sodass sie sich um vertikale Achsen drehen können.
  4. Maschine nach Anspruch 3, dadurch gekennzeichnet, dass jeder der Wägen eine quadratische Basis (27) umfasst, von der ein Zapfen (28) für die Verbindung mit dem entsprechenden Gleitblock (26) nach unten vorsteht, wobei entsprechende Sätze von Walzen (29) derart befestigt sind, dass sie von den Seiten der Basis auskragen, und derartige Abmessungen aufweisen, dass sie gleitend die profilierten Elemente der Schienen (5, 8) kontaktieren können.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass Stützen (30) über der Basis (27) befestigt sind, um eine Plattform (31) zum Halten der zu schneidenden Platten (B) zu stützen, wobei die Plattform einen Sitz zum Aufnehmen einer Platte umfasst, der durch eine Plattenhalteoberfläche (32), zwei parallele Längswände (33) und eine Querwand (34), welche die Längswände an einem Ende verbindet, gebildet wird, wobei die Längswände (33) und die Halteoberfläche (32) mit Querschlitzen (35) und Längsschlitzen (36) versehen sind, die jeweils senkrecht zueinander ausgerichtet sind und den Durchgang der Klingen (45, 46) der Schneideelemente (43, 44) erlauben, wobei Stützen (37) zwischen der Basis (27) und der Plattform (31) angeordnet sind, um ein Paar von Gleitstäben (38), die parallel zu den Längswänden (33) vorgesehen sind und an der gegenüberliegenden Seite in Bezug auf die Querwand (34) befestigt sind, durch ein Querglied (39) zu führen, das entlang der Stäbe (38) mittels einer hydraulischen Hebevorrichtung (40, 41) betätigt werden kann, die auf der Basis (27) befestigt ist, wobei ein Element (42) zum Festhalten der Platte gegen die Querwand (34) fest mit dem Querglied (39) verbunden ist.
  6. Maschine nach Anspruch 5, dadurch gekennzeichnet, dass die Plattform (31) drehbar auf der Basis befestigt ist und eine Walze (62) aufweist, die einen stationären Nocken (63) kontaktieren kann, der entlang eines Segments des durch die Wägen (9-12) verfolgten Pfades vor dem Bereich zum Laden der zu schneidenden Platten angeordnet ist, wobei der Nocken (63) dafür geeignet ist, das Kippen der Platteform (31) und das Entladen der Mosaiksteinchen in einen Sammelbereich zu bewirken.
  7. Maschine nach Anspruch 5, dadurch gekennzeichnet, dass das Element zum Halten der Platten durch eine Vielzahl von Fingern (42) gebildet wird, die von der oberen Kante des Quergliedes (39) vorstehen und mit rechten Winkeln parallel zu den Längswänden (33) gebogen sind, wobei die Finger (42) dazwischen Zwischenräume bilden, die mit den Längsschlitzen (36) ausgerichtet sind, um den Durchgang der Klingen (45, 46) der Schneideelemente (43, 44) zu gestatten.
  8. Maschine nach Anspruch 7, dadurch gekennzeichnet, dass die rotierende Anordnung der kreisförmigen Klingen (45, 46) entlang des Bewegungspfades der Wägen (9-12) angeordnet ist, wobei die Klingen auf einer entsprechenden horizontalen Welle (47, 48) befestigt sind, die radial von der Rotationsachse (A) der Trommel (14) vorsteht, wobei eine Welle (47) der Anordnung von Klingen (45) einer Schneideeinheit (43) entlang einer Achse (C) senkrecht zu einer Seite der Schienen ausgerichtet ist und durch die Rotationsachse (A) der Trommel (14) verläuft und wobei die Welle (58) der Anordnung (46) der zweiten Schneideeinheit (44) entlang einer Achse (D) ausgerichtet ist, die um 90° in Bezug auf die erste Achse (C) gedreht ist, wobei die Wellen (47, 48) derart gehalten werden, dass die kreisförmigen Klingen (45, 46) im wesentlichen einander tangierend angeordnet sind und ihre unteren Schneiden zu der Halteoberfläche (32) für die Platte (B) gerichtet sind.
EP98114018A 1997-08-07 1998-07-27 Maschine zum Aufschneiden von Platten aus verschiedenen Materialien wie Marmor, Keramik, Terrakotta, Sandstein, Glass oder dergleichen in Mosaiksteinen Expired - Lifetime EP0895842B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BO000501A IT1294162B1 (it) 1997-08-07 1997-08-07 Macchina per il taglio in tessere di lastre di materiali vari come marmo, ceramica, cotto, gres, vetro e simili.
ITBO970501 1997-08-07

Publications (3)

Publication Number Publication Date
EP0895842A2 EP0895842A2 (de) 1999-02-10
EP0895842A3 EP0895842A3 (de) 2000-12-13
EP0895842B1 true EP0895842B1 (de) 2003-02-12

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Application Number Title Priority Date Filing Date
EP98114018A Expired - Lifetime EP0895842B1 (de) 1997-08-07 1998-07-27 Maschine zum Aufschneiden von Platten aus verschiedenen Materialien wie Marmor, Keramik, Terrakotta, Sandstein, Glass oder dergleichen in Mosaiksteinen

Country Status (5)

Country Link
EP (1) EP0895842B1 (de)
DE (1) DE69811301T2 (de)
ES (1) ES2191891T3 (de)
IT (1) IT1294162B1 (de)
PT (1) PT895842E (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016281A3 (nl) * 2004-03-05 2006-07-04 Aelst Filip Van Werkwijze en inrichting voor het in schijven zagen van blokken natuursteen.
US11433464B2 (en) 2018-08-28 2022-09-06 Techtronic Power Tools Technology Limited Tile saw

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315778A (en) * 1956-10-17 1967-04-25 Kenhos Dev Pool Machine tools
SE405957B (sv) * 1977-03-11 1979-01-15 Mohog Ab Forfarande for sagning och stapling av skivor
NL8800309A (nl) * 1988-02-09 1989-09-01 Product Suppliers Ag Inrichting voor het vervoer van voorwerpen.

Also Published As

Publication number Publication date
ITBO970501A0 (it) 1997-08-07
DE69811301T2 (de) 2003-12-11
PT895842E (pt) 2003-06-30
IT1294162B1 (it) 1999-03-22
EP0895842A2 (de) 1999-02-10
DE69811301D1 (de) 2003-03-20
ITBO970501A1 (it) 1999-02-07
EP0895842A3 (de) 2000-12-13
ES2191891T3 (es) 2003-09-16

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