EP1977867A1 - Strahlwerkzeug und Werkzeughaltekopf für die Bearbeitung von Platten und Blöcken aus Stein, Zement oder derartigen Materialien - Google Patents

Strahlwerkzeug und Werkzeughaltekopf für die Bearbeitung von Platten und Blöcken aus Stein, Zement oder derartigen Materialien Download PDF

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Publication number
EP1977867A1
EP1977867A1 EP08005001A EP08005001A EP1977867A1 EP 1977867 A1 EP1977867 A1 EP 1977867A1 EP 08005001 A EP08005001 A EP 08005001A EP 08005001 A EP08005001 A EP 08005001A EP 1977867 A1 EP1977867 A1 EP 1977867A1
Authority
EP
European Patent Office
Prior art keywords
tool
axis
plate
jet
nozzles
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.)
Granted
Application number
EP08005001A
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English (en)
French (fr)
Other versions
EP1977867B1 (de
Inventor
Claudio Lovato
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.)
MAEMA Srl
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MAEMA Srl
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Publication date
Application filed by MAEMA Srl filed Critical MAEMA Srl
Priority to PL08005001T priority Critical patent/PL1977867T3/pl
Publication of EP1977867A1 publication Critical patent/EP1977867A1/de
Application granted granted Critical
Publication of EP1977867B1 publication Critical patent/EP1977867B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • 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

Definitions

  • the present invention generally finds application in the technical field of stone working and particularly relates to a high pressure fluid jet tool for surface working of products of various materials, as well as a head comprising such tool.
  • the tool and tool holding head are particularly suitable for surface finishing of slabs or blocks of stone, marble, granite or stone or cementitious agglomerates or materials and the like.
  • tools When treatments do not require material removal or surface deformation of the slabs, tools are generally used with one or more cutting edges, which operate by cutting or hitting the surface.
  • Flaming processes are instead carried out by exposing the surface layer of the slab to high temperatures by direct action of an oxyhydrogen flame delivered by single or multiple blowtorch systems.
  • Another substantial drawback consists in the high fuel consumption required for feeding the flame, particularly when using multiple blowtorch flaming machines.
  • US 5,291,694 discloses an apparatus for surface treatment of stone surfaces, having a nozzle holding head with seven high pressure liquid jet nozzles arranged along a circumference.
  • the head is eccentrically rotary driven by a drive shaft so that the liquid jet propelled by each nozzle, in combination with the linear translational motion imparted to the head, describes non linear traces.
  • the object of the present invention is to overcome the above drawbacks, by providing a jet tool for surface working of slabs or blocks of stone, marble, granite, cementitious agglomerates or the like using high pressure fluid, that is highly efficient and relatively cost-effective.
  • a particular object is to provide a jet tool that allows quick surface finishing, while obtaining a final product with aesthetic and functional effects as similar as possible to those that can be obtained by manual working, and while eliminating or at least substantially reducing the presence of repeated patterns on the treated surface.
  • a further object is to provide a tool holding head that allows such surface working to be carried out in a cost-effective manner.
  • a jet tool as defined in claim 1, which comprises a support plate, a plurality of nozzles mounted to said plate for connection to a high pressure fluid line to generate fluid jets directed towards the surface to be worked and means for removably anchoring said plate to a spindle that rotates about an axis substantially perpendicular to the surface to be worked.
  • the plurality of nozzles comprises at least two separate arrays of nozzles arranged over the plate along respective mutually offset curved lines so that, as said plate is rotated, the fluid jets interact with the surface to be worked in apparently random paths.
  • the nozzles will direct their respective fluid jets to the surface of the product in an apparently random manner.
  • a tool holding head for surface working of slabs or blocks of stone, marble, granite or stone and/or cementitious or the like agglomerates or materials, comprising at least one fluid jet tool as defined in one or more of claims 1 to 10, motor means for rotating the tool and means for selectively feeding a high pressure working fluid to the tool.
  • the jet tool of the invention may be used for surface working of slabs or blocks of stone, marble, granite or stone, cementitious or the like agglomerates or materials, and particularly for surface finishing treatments using high pressure fluid jets.
  • the working fluid is preferably water and will be locally directed to the surface S to be treated, with a pressure preferably exceeding 500 kg/cm 2 , to roughen the surface S by material removal.
  • a jet tool of the invention comprises a support plate 2 with a plurality of nozzles 3, 3', 3",... mounted thereto for connection to a high pressure fluid line 4 to generate fluid J, J', J", ... directed towards the surface to be worked S, means 5 for removably anchoring the plate 2 to a spindle 6 that rotates about an axis of rotation X substantially perpendicular to the surface to be worked S.
  • At least two distinct arrays 7, 7' of nozzles 3, 3', 3", ... are arranged over the plate 2 along respective mutually offset curved lines 8, 8'.
  • nozzles 3, 3', 3", ... and their respective jets J, J', J" will be designated by non-indexed reference numbers, referring to the nozzle element 3 and the jet J only, unless otherwise stated.
  • the fluid jets J will impinge upon the surface to be worked S, as shown in FIG. 6 , and cause material removal without generating any visible effect caused by overlapped working lines.
  • the high pressure fluid jet J delivered by a given nozzle such as the nozzle designated by 3', will not impinge upon the point of the surface S that has just been acted upon by the fluid jet J from the adjacent nozzle 3", thereby achieving a final effect as close as possible to manual working.
  • both the curves 8, 8' along which the nozzles 3 are disposed may be elliptic arcs centered on the axis of rotation X of the plate 2.
  • the longer axes a MAX , a' MAX of the two ellipses 8, 8' are substantially orthogonal to each other. Nonetheless, they can also form an angle ⁇ defined by the two longer axes a MAX , a' MAX , of predetermined value.
  • each of the two ellipses 8, 8' may have a longer axis a MAX , a' MAX that is 1.5 to 1.9 times the corresponding shorter axis a MIN , a' MIN . These values may be selected according to the speeds of rotation and translation with which the tool 1 is effectively driven during each specific process.
  • the longer and shorter axes a MAX and a MIN of one of the two ellipses, such as the ellipse 8 may be 0.6 to 1.4 times the homologous axes a' MAX and a' MIN of the other ellipse 8'.
  • FIG. 3 is a front sectional view of the jet tool 1, which shows that the nozzles 3 may be attached to the plate 2 using respective pairs of plates 9, 9' that are removably fastened to the top face 10 and the bottom face 11 of the plate 2 respectively.
  • the nozzles 3 may be fitted in special through cavities 12 of substantially circular shape, that are arranged along the two curved lines 8, 8' and define receptacles for respective nozzles 3, as more clearly shown in FIG. 4 .
  • the centers of the adjacent through cavities 12 may delimit a portion of the corresponding elliptic arc 8, 8' that subtends a center angle ⁇ falling in a range from 5° to 30° and preferably from 10° to 20°.
  • FIG. 4 also shows that the means 5 for anchoring the plate 2 to the spindle 6 may consist of a substantially central passage 13 formed on the plate 2 and a plurality of auxiliary holes 14 arranged at the periphery of the central passage 13.
  • additional anchor receptacles 15 may be provided over the plate 2 for one or more weights, not shown, for balancing the whole tool 1 during its rotary motion, whose position will be selected as a function of the particular arrangement of the nozzles 3 and will be required whenever the latter are not evenly arranged.
  • a tool holding head 16 is provided for surface working of a slab K or a block of stone or the like material, which comprises a high pressure fluid jet tool 1 as described above, defining a substantially central axis of rotation X, motor means 17 for rotatably driving the tool 1 about the axis of rotation X and means 18 for selectively feeding a high pressure working fluid to the tool 1.
  • the selective feed means 18 may include a feed line 4 with a manifold 19 having a plurality of outlets, generally designated by numeral 20, connected to respective nozzles 3 via corresponding feed pipes 21, as only partially shown in the figures, to carry the working fluid from the manifold 19 to the corresponding nozzle 3.
  • the manifold 19 may be substantially cylindrical and coaxial with the support plate 2, with a first face 22 having a flange 23 for anchorage to the plate 2 at the central passage 14 and auxiliary holes 14 thereof, and an opposite face 24 associated to the drive means 17.
  • the latter may in turn include a motor driven spindle 6 which is integral with the manifold 19 and drives it into rotation about its axis X integrally with the tool 1.
  • the motor means 17 may include a drive shaft 25, with an axis W parallel to or coincident with the axis of the manifold and thence the axis of rotation X of the tool 1, and having a first axial end 26 associated with the spindle 6 and a second axial end 27, opposite to the first end 26, with a rotary joint 28 for connection of an external motor, not shown, to the drive shaft, for driving the latter into rotation.
  • the drive shaft 25 may have a substantially axial passage 29 for the pipes 30 that are designed for feeding high pressure working fluids to the manifold 19, as more clearly shown in the section of FIG. 7 .
  • a frame 31 may be provided for support and protection of the head 16, comprising a protective shell 32, which is only partially shown for the tool 1 to be exposed to view, an anchor portion 33 for anchoring the head 16 to an external machine, not shown, for guided displacement of the head 16 over a plane ⁇ parallel to the surface of the slab L or block being processed.
  • the portion 33 for anchoring and guiding the frame 31 may be mounted to a carriage that slides along a predetermined direction or with equivalent means, such as an anthropomorphic arm, not shown, with the slab L or block that can also have its own translational motion.
  • the frame 31 may also include an additional support portion 34 for the drive means 17, having lock means 35 for locking the pipe 30, such as a clamp, to prevent any undesired twisting of the pipe 30 during rotation of the manifold 19.
  • the selective feed means 18 may also be associated with a microprocessor control unit, to be used for selective, sequential, controlled or random enabling/disabling of one or more nozzles 3 of the plurality.
  • each nozzle 3 may be fed with a pressure that is not necessarily equal to the feed pressure of the other nozzles of the plurality and may also be temporarily not fed, thereby increasing the random arrangement of the patterns generated by the jets J.
  • the invention fulfills the intended objects, and particularly meets the requirement of providing a jet tool that allows surface treatment of slabs or blocks of stone, marble, granite, stone and/or cementitious and the like agglomerates or materials, in a quick, efficient and safe manner.
  • the tool can direct the fluid jet to obtain surfaces with even and homogeneous treatments, with no or minimized presence of repeated patterns, which are as close as possible as those that can be obtained by manual working.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP08005001.6A 2007-03-19 2008-03-18 Strahlwerkzeug und Werkzeughaltekopf für die Bearbeitung von Platten und Blöcken aus Stein, Zement oder derartigen Materialien Active EP1977867B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08005001T PL1977867T3 (pl) 2007-03-19 2008-03-18 Narzędzie strumieniowe oraz głowica podtrzymująca narzędzie do obróbki powierzchni płyt i bloków z kamienia, cementu lub podobnych materiałów

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000079A ITVI20070079A1 (it) 2007-03-19 2007-03-19 Utensile a getto e testa portautensili per la lavorazione superficiale di lastre e blocchi in materiali lapidei, cementizi o similari.

Publications (2)

Publication Number Publication Date
EP1977867A1 true EP1977867A1 (de) 2008-10-08
EP1977867B1 EP1977867B1 (de) 2013-11-06

Family

ID=39511040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005001.6A Active EP1977867B1 (de) 2007-03-19 2008-03-18 Strahlwerkzeug und Werkzeughaltekopf für die Bearbeitung von Platten und Blöcken aus Stein, Zement oder derartigen Materialien

Country Status (6)

Country Link
EP (1) EP1977867B1 (de)
DK (1) DK1977867T3 (de)
ES (1) ES2444917T3 (de)
IT (1) ITVI20070079A1 (de)
PL (1) PL1977867T3 (de)
PT (1) PT1977867E (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105275A3 (de) * 2008-03-28 2012-01-25 MAEMA S.r.l. Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen
ITVI20120207A1 (it) * 2012-08-09 2014-02-10 Maema S R L Unipersonale Impianto per la lavorazione superficiale a getto d'acqua di prodotti semilavorati in materiale lapideo
ITVI20120208A1 (it) * 2012-08-09 2014-02-10 Maema S R L Unipersonale Metodo ed impianto per la lavorazione superficiale a getto d'acqua di oggetti in materiale lapideo
EP3479980A1 (de) * 2017-11-07 2019-05-08 Carrières du Hainaut Verfahren zur oberflächenbearbeitung eines felsgesteins und sedimentarischen steins
CN115026727A (zh) * 2022-05-06 2022-09-09 章寿琼 一种石材深加工模块自动生产线

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145299A (ja) * 1988-11-25 1990-06-04 Toshio Sugano ウォータジェットによる車輛の側面塗装剥離装置と車輛の側面塗装剥離方法
WO1993011908A1 (fr) * 1991-12-11 1993-06-24 Christian Diat Procede de micro-nettoyage d'un support et installation pour sa mise en ×uvre
US5291694A (en) 1991-06-03 1994-03-08 Jse Corporation Apparatus and method of working and finish treating a stone surface
US20060049285A1 (en) 2003-07-17 2006-03-09 Mieko Sakai Device and method for high-pressure water jetting surface cutting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145299A (ja) * 1988-11-25 1990-06-04 Toshio Sugano ウォータジェットによる車輛の側面塗装剥離装置と車輛の側面塗装剥離方法
US5291694A (en) 1991-06-03 1994-03-08 Jse Corporation Apparatus and method of working and finish treating a stone surface
WO1993011908A1 (fr) * 1991-12-11 1993-06-24 Christian Diat Procede de micro-nettoyage d'un support et installation pour sa mise en ×uvre
US20060049285A1 (en) 2003-07-17 2006-03-09 Mieko Sakai Device and method for high-pressure water jetting surface cutting

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105275A3 (de) * 2008-03-28 2012-01-25 MAEMA S.r.l. Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen
ITVI20120207A1 (it) * 2012-08-09 2014-02-10 Maema S R L Unipersonale Impianto per la lavorazione superficiale a getto d'acqua di prodotti semilavorati in materiale lapideo
ITVI20120208A1 (it) * 2012-08-09 2014-02-10 Maema S R L Unipersonale Metodo ed impianto per la lavorazione superficiale a getto d'acqua di oggetti in materiale lapideo
EP2695712A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
EP2695713A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Verfahren und Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
EP3479980A1 (de) * 2017-11-07 2019-05-08 Carrières du Hainaut Verfahren zur oberflächenbearbeitung eines felsgesteins und sedimentarischen steins
BE1024868B1 (fr) * 2017-11-07 2019-06-04 Carrieres Du Hainaut Procede de surfaçage d'une roche
CN115026727A (zh) * 2022-05-06 2022-09-09 章寿琼 一种石材深加工模块自动生产线
CN115026727B (zh) * 2022-05-06 2023-09-29 泉州达锋机械有限公司 一种石材深加工模块自动生产线

Also Published As

Publication number Publication date
PL1977867T3 (pl) 2014-07-31
ES2444917T3 (es) 2014-02-27
EP1977867B1 (de) 2013-11-06
PT1977867E (pt) 2014-02-12
DK1977867T3 (da) 2014-02-03
ITVI20070079A1 (it) 2008-09-20

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