EP3689569B1 - Splittmaschine mit beweglichem wagen - Google Patents

Splittmaschine mit beweglichem wagen Download PDF

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Publication number
EP3689569B1
EP3689569B1 EP20020028.5A EP20020028A EP3689569B1 EP 3689569 B1 EP3689569 B1 EP 3689569B1 EP 20020028 A EP20020028 A EP 20020028A EP 3689569 B1 EP3689569 B1 EP 3689569B1
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EP
European Patent Office
Prior art keywords
splitting
cutting
arms
block
cut
Prior art date
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Active
Application number
EP20020028.5A
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English (en)
French (fr)
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EP3689569A1 (de
Inventor
Claudio BALDESSARI
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MEC Srl
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MEC Srl
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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
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • 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
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/222—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by pressing, e.g. presses
    • 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

Definitions

  • the present invention relates to an automatic or manual splitting machine according to the preamble of claim 1, said machine being suitable for splitting irregularly shaped and variable sized materials.
  • the present invention refers to a splitting machine capable of blocking a marble, porphyry, granite and similar materials block, having irregular shape and variable dimensions and thus transporting it blocked to a splitting station.
  • the present invention also refers to a method for splitting a material block using the splitting machine.
  • Such a machine is known from GB2543795A .
  • splitting machines comprise at least a conveyor belt longitudinally extending onto which the stone blocks to be split are placed.
  • the splitting machines available on the market have the disadvantage that, once positioned onto the conveyor belt, some stones, especially those of uneven thickness, tend to appear at the splitting station in an unstable position, thus causing a splitting operation lacking the required precision. Therefore, the Applicant of the present patent application has found the need to create a splitting machine allowing to overcome the above mentioned drawbacks, so that the material to be cut/split, once loaded onto the conveyor belt, can be blocked and transported until reaching the cutting/splitting station.
  • a splitting machine defined by the features of claim 1 is provided. Further preferred embodiments are defined by the features of the dependent claims 1-5.
  • an automatic or manual splitting machine for cutting/splitting natural stone and/or concrete material blocks
  • said machine comprises a motorized or not motorized conveyor belt, adapted to receive said material blocks to be cut/split positioned thereon and to transport them towards at least one cutting/splitting station of said blocks provided with at least one cutting/splitting device, characterized in that said machine further comprises a carriage provided with a plurality of arms able to, independently one each other, vertically slide from a first rest position wherein the arm is not in contact with the block to be cut to a second gripping position on the block to be cut, wherein said carriage is adapted to move along the conveyor belt from a first locking position wherein the material block to be cut is blocked to a second position at said cutting/splitting station, and vice versa.
  • each of the arms contributes to block onto the conveyor belt the material block to be subjected to the cutting action; in fact, thanks to the fact that each of the arms acts independently from the other arms, each arm vertically moves from the rest position to that one gripping the material block to be cut by a specific distance determined by the thickness of the material block at that arm.
  • each arm will lock itself in a gripping position in contact with the surface of the material block to be cut at a different height than the other arms, following the profile given by the different thickness of the block to be cut.
  • the material block to be cut is thus securely blocked by the plurality of arms, regardless of its shape, profile, thickness.
  • said conveyor belt consists of an area of motorized transport elements (rollers, belts, chains, etc.) and subsequently of an area of non-motorized elements, consisting of a series of arms arranged adjacent one to the other and transversely with respect to the conveying direction of the conveyor belt.
  • the motorized area ensures the advancement of the stone on the front of the carriage so that the plurality of arms can subsequently block and advance the stone towards the cutting/splitting area.
  • said carriage is provided with a first plurality of said arms arranged above the conveyor belt.
  • each arm of the first plurality of said arms is able to vertically descend from the rest position to that one gripping onto the upper surface of the material block to be cut.
  • said carriage is provided with a second plurality of said arms arranged below the conveyor belt.
  • each arm of the second plurality of said arms is able to vertically rise from the rest position to that one gripping the lower surface of the material block to be cut.
  • said carriage is provided with both said first and said second plurality of said arms arranged, respectively, above and below the conveyor belt.
  • each arm of the first plurality of said arms is able to vertically descend from the rest position to that one gripping onto the upper surface of the material block to be cut/split
  • each arm of the second plurality of said arms is able to vertically rise from the rest position to the gripping position onto the lower surface of the material block to be cut/split, the movement of each arm not being constrained by the movement of any of the other arms.
  • the material block to be cut/split is thus further blocked, both from above and below.
  • said arms of said first and/or second plurality of arms are arranged substantially parallel and opposed to each other, along the conveying direction of the conveyor belt.
  • the gripping position of each arm on the block to be cut is determined on the basis of the achievement of a predetermined pressure contact threshold value between that arm and the block to be cut/split.
  • each arm of said first and/or second plurality of arms descends/rises towards the material block to be cut/split until it comes into contact with the block itself and settles against it only when the pressure between the arm and the block to be cut/split is greater than a predetermined pressure value.
  • the material block to be cut/split is then blocked by said plurality of arms, regardless of the shape and thickness (for example, not uniform) of the block itself.
  • said arms are operated by means of pneumatic, hydraulic or electric cylinders/pistons.
  • said carriage is able to move from the first position, wherein the material block to be cut is blocked by said arms, to the cutting/splitting station, keeping the material block blocked by means of said arms to be cut/split all the way between the blocking station and the cutting station.
  • the positioning of said cutting device is adjustable according to the depth of the cut/split required.
  • the present invention also provides a method for cutting or splitting a material block, said method being defined by the features of claim 6.
  • the present invention in fact arises from the general consideration according to which the technical problem highlighted above can be solved in an effective and reliable way by a method for cutting a material block using the splitting machine described above with reference to the first aspect of the present invention.
  • the cutting/splitting method of the present invention comprises the steps of:
  • each of the arms contributes to block onto the conveyor belt the material block to be subjected to the cutting/splitting action and to transport the material block to the cutting/splitting station.
  • each arm vertically moves from the rest position to the gripping position of the material block to be cut/split by a specific distance determined by the thickness of the material block at that arm.
  • each arm will lock itself in a gripping position in contact with the surface of the material block to be cut at a different height than the other arms, following the profile given by the different thickness of the block.
  • this material block will be brought to the cutting/splitting station by moving along the conveyor belt the carriage onto which the arms keeping blocked the material block to be cut are positioned.
  • the material block will be freed from the arm gripping and the carriage will be brought back to the locking position to repeat the operations to block a new material block to be cut/split and take it to the cutting/splitting station.
  • the cut pieces are then continued along the conveyor belt or removed from the conveyor belt itself and collected in suitable collection stations for the cut pieces.
  • the step a) of positioning the material block to be cut/split onto the conveyor belt of the splitting machine is performed by means of a device adapted to grasp the material block to be cut/split, such as for example a pincer or jaw device able to firmly hold the material block until it is placed onto the conveyor belt.
  • a device adapted to grasp the material block to be cut/split such as for example a pincer or jaw device able to firmly hold the material block until it is placed onto the conveyor belt.
  • the step d) of cutting/splitting the material block can be repeated several times before carrying out the step e) of releasing the grip of the material block.
  • step d) once step d) has been carried out a first time, obtaining a first piece cut from the material block, the carriage is made to move further along the conveyor belt until this remaining portion of the material block to be cut/split is located at the cutting/splitting device to be subjected to a new cutting/splitting action, while maintaining the grip of the arms onto the remaining portion of the material block still to be cut/split.
  • a second piece is cut/split according to the requests. This operation can be repeated several times according to the required cutting pieces.
  • the remaining block material is freed from the arms grip and the carriage is brought back along the conveyor belt to the blocking station.
  • FIG. 1-10 an embodiment of a splitting machine 1 according to the present invention is shown below.
  • Figs. 1 and 2 show an overall view, on one side and on the opposite side, of an automatic splitting machine 1 for cutting/splitting material blocks 3 in natural stone and/or concrete, where it is visible the motorized conveyor belt 2 onto which a stone block 3 to be cut/split is positioned (shown in Figs. 6 and 8 ).
  • the conveyor belt 2 consists of an area of motorized transport elements (rollers, belts, chains, etc.) and subsequently an area of non-motorized elements consisting of a series of rollers arranged adjacent to each other and transversely with respect to the conveying direction of the conveyor belt.
  • a cutting station 7 (shown in Figures 5-8 ) of said material blocks 3 equipped with at least one cutting/splitting device 8.
  • the positioning of the cutting device 8 is adjustable according to the required cutting depth.
  • the conveyor 1 further comprises a carriage 4 (shown in detail in Figures 3 and 4 , seen from the front and from the rear, with respect to the transport direction of the conveyor belt 2), adapted to move along the conveyor belt 2 sliding along the side guides arranged onto the edges of the conveyor belt 2.
  • the carriage 4 is provided with at least a first plurality of arms 5a arranged above the conveyor belt 2 and a second plurality of arms 5b arranged below the conveyor belt 2.
  • These arms 5a, 5b are arranged substantially parallel to each other, along the conveying direction of the conveyor belt 2 and are able to vertically slide, each independently of the other arms 5a, 5b, from a first rest position wherein the arm is not in contact with the material block 3 to be cut/split to a second gripping position onto the material block 3 to be cut/split.
  • Each arm 5a, 5b is driven by a corresponding pneumatic, hydraulic or electric cylinder 9a, 9b.
  • Each of the arms 5a arranged above the conveyor belt 2 is able to vertically descend from the rest position to the gripping position onto the upper surface of the material block 3 to be cut/split.
  • each arm 5b of the second plurality of said arms arranged under the conveyor belt 2 is able to vertically rise from the rest position to that one gripping the lower surface of the material block 3 to be cut/split, the movement of each arm 5a, 5b being not constrained by the movement of any of the other arms 5a, 5b.
  • the material block to be cut/split is thus further blocked, both from above and below.
  • each arm 5a, 5b will lock itself in the gripping position in contact with the surface of the material block 3 to be cut/split at a different height than the other arms 5a, 5b, following the profile given by the different thickness of the material block 3.
  • each arm 5a, 5b on the material block 3 to be cut/split is determined on the basis of the achievement of a predetermined threshold value of contact pressure between the arm 5a, 5b and the material block 3 to be cut/split.
  • the carriage 4 is moved from the first block station 6 ( Fig. 6 ), where the material block 3 to be cut/split is blocked by the arms 5a, 5b, to the cutting/splitting station 7, keeping blocked the material block 3 to be cut/split all the way between the blocking station 6 and the cutting/splitting station 7 by means of the arms 5a, 5b ( Fig. 9 ).
  • the material block 3 is then subjected to the cutting/splitting operation.
  • the user can decide whether to perform a new cutting/splitting operation of the stone block 3 remaining after the first cutting/splitting operation.
  • the carriage 4 is moved further along the conveyor belt 2 until this remaining portion of the material block 3 to be cut/split is in correspondence with the cutting/splitting device 8 to be subjected to a new cutting/splitting action, while maintaining the grip of the arms 5a, 5b onto the remaining portion of the material block 3 still to be cut/split ( Fig. 9 ).
  • the cutting/splitting operation of the material block 3 can be repeated several times, based on the needs and dimensions of the material block 3 to be cut/split.
  • the remaining material block 3 (uncut/unsplit) is freed from the grip of the arms 5a, 5b ( Fig. 10 ) and the carriage 4 is brought back to the locking position 6 to repeat the operations to block a new material block 3 to be cut/split and take it to the cutting/splitting station 7 ( Fig. 9 ).

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

Claims (7)

  1. Automatische oder manuelle Spaltmaschine (1) zum Schneiden/Spalten von Materialblöcken (3) aus Naturstein und/oder Beton, wobei die besagte Maschine (1) ein motorisiertes oder nicht motorisiertes Förderband (2) umfasst,
    das darauf ausgerichtet ist, besagte zu schneidende/spaltende Materialblöcke (3), die auf ihm positioniert sind, zu empfangen und sie zu mindestens einer Schneid-/Spaltstation (7) für besagte Materialblöcke (3), die mit mindestens einer Schneid-/Spaltvorrichtung (8) ausgestattet ist, zu transportieren,
    die durch die Tatsache ausgezeichnet ist, dass besagte Maschine (1) zudem einen Wagen (4) umfasst, der mit einer Vielzahl von Armen (5) ausgestattet ist, die in der Lage sind, vertikal zu gleiten, jeder auf von den anderen Armen (5) unabhängige Weise, und zwar von einer ersten Ruheposition, in welcher der Arm (5) nicht in Kontakt mit dem zu schneidenden/spaltenden Block (3) steht zu einer zweiten Greifposition auf dem zu schneidenden/spaltenden Block (3), wobei besagter Wagen (4) darauf ausgerichtet ist, sich entlang dem Förderband (2) von einer ersten Verriegelungsposition (6), in der der zu schneidenden/spaltenden Materialblock (3) verriegelt wird, in eine zweite Position in Entsprechung der besagten Schneid-/Spaltstation (7) zu versetzen und umgekehrt.
  2. Spaltmaschine (1) gemäß dem Anspruch 1, wobei der besagte Wagen (4) mit mindestens einer ersten Vielzahl besagter Arme (5a,5b) ausgestattet ist, die oberhalb oder unterhalb des Förderbands (2) angeordnet sind.
  3. Spaltmaschine (1) gemäß irgendeinem der vorstehenden Ansprüche, wobei die besagten Arme der besagten ersten (5a) und/oder zweiten Vielzahl an Armen (5b) im Wesentlichen parallel zueinander angeordnet sind, entlang der Transportrichtung des Förderbands (2).
  4. Spaltmaschine (1) gemäß irgendeinem der vorstehenden Ansprüche (1), wobei die Greifposition eines jeden Arms (5a,5b) auf dem zu schneidenden/spaltenden Block (3) auf Grundlage des Erreichens eines vorbestimmten Schwellenwerts des Kontaktdrucks zwischen dem Arm (5a,5b) und dem zu schneidenden/spaltenden Block (3) bestimmt wird.
  5. Spaltmaschine (1) gemäß irgendeinem der vorstehenden Ansprüche (1), wobei jeder der besagten Arme (5a,5b) von einem entsprechenden pneumatischen, hydraulischen oder elektrischen Kolben betrieben wird (9a,9b).
  6. Schneid-/Spaltverfahren eines Materialblocks (3), das die Spaltmaschine (1) gemäß irgendeinem der vorstehenden Ansprüche 1-5 verwendet, Schneid-/Spaltverfahren, das die folgende Phasen umfasst:
    a) einen zu schneidenden/spaltenden Materialblocks (3) auf einem Förderband (2) einer Spaltmaschine (1) positionieren;
    b) den besagten Materialblock (3) auf dem Förderband (2) in Entsprechung einer Verriegelungsstation (6) mittels einer Vielzahl von Armen (5a, 5b), die auf einem mobile Wagen (4) entlang dem Förderband (2) positioniert sind, verriegeln, wobei besagte Arme (5a,5b) in der Lage sind, entlang dem Förderband vertikal zu gleiten, jeder auf von den anderen Armen (5a,5b) unabhängige Weise, und zwar von einer ersten Ruheposition, in welcher der Arm (5a,5b) nicht in Kontakt mit dem zu schneidenden/spaltenden Block (3) steht, zu einer zweiten Greifposition auf dem zu schneidenden/spaltenden Block (3);
    c) den besagten Wagen (4) und mit ihm folglich den zu schneidenden/spaltenden Materialblock (3), der von besagter Vielzahl an Armen (5a,5b), die auf dem Wagen (2) positioniert sind, verriegelt wurde, von besagter Verriegelungsstation (6) zu einer Schneid-/Spaltstation (7) versetzen;
    d) den zu schneidenden/spaltenden Materialblock (3) mindestens einem Schneid-/Spaltvorgang durch mindestens eine Schneid-/Spaltvorrichtung unterziehen;
    e) den Materialblock (3) aus dem Griff der besagten Vielzahl an Armen (5a,5b) befreien;
    f) den Materialblock (3) vom Förderband entfernen; und
    g) den Wagen (4) von besagter Schneid-/Spaltstation (7) zu besagter Verriegelungsstation (6) versetzen.
  7. Verfahren gemäß dem Anspruch 6, in welchem die Schneid-/Spaltphase d) des Materialblocks (3) mehrmals vor der Ausführung der Freigabephase e) des Griffs des Materialblocks (3) wiederholt werden kann, indem von Mal zu Mal der noch zu schneidende/spaltende Materialblock (3) in Entsprechung der Schneid-/Spaltstation (7) positioniert wird.
EP20020028.5A 2019-01-29 2020-01-17 Splittmaschine mit beweglichem wagen Active EP3689569B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201900001275 2019-01-29

Publications (2)

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EP3689569A1 EP3689569A1 (de) 2020-08-05
EP3689569B1 true EP3689569B1 (de) 2023-03-15

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Application Number Title Priority Date Filing Date
EP20020028.5A Active EP3689569B1 (de) 2019-01-29 2020-01-17 Splittmaschine mit beweglichem wagen

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EP (1) EP3689569B1 (de)
CA (1) CA3069219A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2849077A (en) * 1976-09-02 1979-03-08 Dottavi R Brick splitting machine
ITBO20080246A1 (it) * 2008-04-21 2009-10-22 Valter Naldi Macchina sezionatrice
EP3069838B1 (de) * 2015-03-18 2021-12-29 BIESSE S.p.A. Maschine zur verarbeitung von paneelen aus holz und dergleichen
KR101566168B1 (ko) * 2015-06-18 2015-11-06 주식회사 우리돌 석재 파단용 유압프레스 및 이를 이용한 성곽석 제조방법
GB2543795B (en) * 2015-10-28 2017-11-01 Poundfield Products Ltd Manufacture of pre-stressed concrete members

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CA3069219A1 (en) 2020-07-28
EP3689569A1 (de) 2020-08-05

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