EP3738713A1 - Procédé d'usinage de surface d'une surface de pierre et/ou de béton - Google Patents

Procédé d'usinage de surface d'une surface de pierre et/ou de béton Download PDF

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Publication number
EP3738713A1
EP3738713A1 EP20162836.9A EP20162836A EP3738713A1 EP 3738713 A1 EP3738713 A1 EP 3738713A1 EP 20162836 A EP20162836 A EP 20162836A EP 3738713 A1 EP3738713 A1 EP 3738713A1
Authority
EP
European Patent Office
Prior art keywords
rotation
processed
stone
drive
workpiece
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.)
Pending
Application number
EP20162836.9A
Other languages
German (de)
English (en)
Inventor
Werner Gross
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.)
Schindler GmbH
Original Assignee
Schindler GmbH
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 Schindler GmbH filed Critical Schindler GmbH
Publication of EP3738713A1 publication Critical patent/EP3738713A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/224—Portal grinding machines; Machines having a tool movable in a plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/07—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table
    • B24B7/075—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table using a reciprocating grinding head mounted on a movable carriage

Definitions

  • the present invention relates to a method for surface treatment of a stone and / or concrete surface and to a device for surface treatment of a stone and / or concrete surface according to the respective preambles of claims 1 and 10.
  • the present application also relates, inter alia, to a corresponding curling machine which can be implemented by the device claimed here.
  • Processes already known from the prior art are generally continuous processes. There can be tunnel structures above the transport system, which can accommodate the corresponding curling station.
  • a curling station known from the prior art can consist of a mounted shaft which is driven by a direct or indirect motor drive.
  • Round brushes with a diameter of 350mm for example, made of resistant, coated plastic bristles that work at a speed of 600 revolutions per minute, for example, can be located on the shaft.
  • the shaft can offer a machining width of up to 1200mm with an overhang of 50mm per side.
  • the drive train is adjusted in height, for example, by a servomotor with a mounted shaft.
  • devices known from the prior art (which are or comprise curling stations) have several, for example two, particularly preferably four, curling stations or rotary brushes which are inclined differently to one another in the horizontal direction and / or offset to one another.
  • Such an angle of the individual stations can be defined in that the polishing brushes rotate about an axis of rotation and the axes of rotation are adjusted at an angle to one another in the horizontal direction.
  • Each of the rotary brushes generates grinding and / or polishing grooves on the surface to be processed, which create a corresponding directional gloss effect of the surface in the direction and from the point of view of these grinding and / or polishing grooves.
  • the method according to the invention described here for the surface treatment of a stone and / or concrete surface initially comprises a first step, by means of which a workpiece to be machined is provided which forms the stone and / or concrete surface to be machined.
  • the workpiece to be machined can be a raw workpiece (with a completely unmachined surface) or an already preprocessed workpiece.
  • the workpiece is a concrete slab and / or a paving stone.
  • a processing machine After providing the workpiece to be processed, a processing machine is provided in a next step, which has at least one surface processing element, by means of which the surface is processed by mechanical surface removal, the surface processing element at least during direct mechanical contact with the stone and / or concrete surface to be processed is rotated around an axis of rotation in order to produce the grinding contact with the working stone and / or concrete surface through this rotation.
  • the surface treatment described above is preferably produced solely by the mechanical surface removal of the surface treatment element.
  • Mechanical surface removal includes any material removal from the rock and / or concrete surface. This also includes polishing and mechanical removal into deeper layers of the rock and / or concrete surface. For example, there is mechanical material removal in the sense of, however, no milling and / or no drilling. The mechanical removal of material preferably produces a polished and / or machined surface which has machining grooves. These machining grooves are, however, preferably only recognizable to the external observer as polishing grooves which are produced, for example, by the bristles of a rotary brush. Corresponding polishing directions can therefore be seen in particular under corresponding lighting conditions. In addition, mechanical material removal can also involve filing.
  • polishing means a method in which the state of the polished surface is polished from a matt surface with only low light reflection, for example, to a surface that is shiny in at least one viewing direction and with strong light reflection.
  • mechanical material removal also means satin finishing and / or brushing.
  • the surface treatment element experiences at least one drive in a drive direction different from a direction of rotation.
  • the processing machine comprises a selection and / or setting element, by means of which one of the two drives can be selected.
  • the two drive directions that is, the rotation and the drive in the drive direction
  • the two drive directions are brought about by different drive elements, in particular by different motors.
  • the drive in the drive direction enables an individual setting of the polishing direction and / or the polishing depth in addition to the actual grinding properties of the rotational movement of the surface treatment element.
  • the drive can also be used to individually adjust satin finishing and / or brushing.
  • One and the same brush and / or one and the same set of brushes can therefore be used particularly advantageously for all the workpieces for the surface treatment described above.
  • a workpiece to be processed is first provided which forms the stone and / or concrete surface to be processed, with a processing machine being provided which has at least one surface processing element, by means of which through mechanical surface removal the surface is processed, the surface processing element being rotated around an axis of rotation at least during direct mechanical contact with the stone and / or concrete surface to be processed, in order to achieve grinding contact with the stone and / or concrete surface to be processed through this rotation produce.
  • this surface treatment element in addition to the rotation of the surface treatment element, this surface treatment element experiences at least one drive in a drive direction different from a direction of rotation.
  • This drive direction is preferably not a rotation of the surface processing element, in particular no rotation of the surface processing element.
  • the drive preferably generates a movement of the surface treatment element in a linear or curved shape, relative to the device mounted on the hall floor.
  • the surface treatment element is a rotary brush or a rotary grindstone.
  • a rotary brush in the case of a rotary brush, this can consist of a brush shaft to which round brushes are attached. These round brushes can be with coated plastic brushes.
  • the rotary shaft is preferably an elongated rod member.
  • such a rotary brush has a diameter (including the brushes arranged radially around the rotary shaft of the rotary brush) of at least 100 mm and at most 600 mm, preferably of at least 200 mm and at most 400 mm and very particularly preferably of at least 300 mm and at most 380 mm.
  • the drive direction is different from a passage direction and / or different from a direction of rotation of the workpiece and / or the direction of rotation of the surface processing element.
  • a passage direction in the sense of the method described above is preferably the direction along which the workpiece is passed through the processing machine and is processed during this.
  • the direction of passage can be a straight and / or a curved or otherwise curved path.
  • the drive of the surface treatment element comprises an oscillation drive in the direction of the drive direction.
  • the processing machine can have an additional motor which moves the surface processing element in the direction of the drive direction.
  • the oscillating movement creates a loop with at least one directional component that deviates from the direction of passage.
  • reflection properties of the grooves can be adjusted.
  • the oscillation drive proposed here can be a drive in which the surface processing element is moved back and forth, in particular periodically, along the drive direction and relative to the workpiece and / or relative to the processing machine.
  • the drive direction can be a transverse direction which runs perpendicular to the passage direction along a horizontal transport plane. This then preferably takes place on the basis of a so-called oscillation frequency, which can be set in particular by means of the setting element described above.
  • the oscillation frequency is preferably at least 0.2 Hz and at most 90 Hz, preferably at least 0.8 Hz and at most 45 Hz. This frequency range ensures that the concrete and / or stone surface does not suffer structural damage during grinding. A higher frequency would produce strong lateral grooves, while too low a frequency would produce deep longitudinal grooves. Both extremes would be at the expense of the mechanical stability of the workpiece.
  • An oscillation length of the surface processing element (maximum pendulum amplitude) is at least 3 cm to at most 30 cm.
  • any lateral machining projections of the surface machining element can be partially, but preferably completely, avoided.
  • a processing projection of the surface processing element is such a length range of the surface processing element which, although it has polishing and / or brushing properties, remains partially or completely unused during operation. The embodiment described above can therefore partially or completely avoid such an unused machining area of the surface machining element.
  • a length of the rotary brush that is, such a length along which the rotary brushes are arranged, can even be selected to be shortened, namely in such a way that only through the oscillation operation, among other things, also within the scope of the above claimed oscillation operation a complete length and / or transverse and / or inclined coverage of the workpiece is achieved.
  • the corresponding length of the rotary brush is chosen to be shorter than a (maximum) width and / or diagonal width of the workpiece. It is conceivable that the rotary brush is inclined at an angle of attack relative to the direction of passage. Rotary brushes of this type are therefore arranged obliquely relative to the direction of passage, with the arrangement inclination thus arising can only be completely covered when a corresponding oscillation is carried out along the incline.
  • a rotation rate of the surface processing element about its axis of rotation is at least 200 rpm and at most 1200 rpm, preferably at least 400 rpm and at most 800 rpm, particularly preferably at least 500 rpm and at most 700 rpm .
  • the rotation rate described above and thus claimed by way of example ensures that the workpiece to be processed and in particular the stone and / or concrete surface to be processed can be processed in a polishing manner.
  • polishing means a method in which the state of the polished surface is polished from a matt surface with only low light reflection, for example, to a surface that is shiny in at least one viewing direction and with strong light reflection. The same can apply to the process of satin finishing and / or polishing.
  • the only possible polishing material for example, is the corresponding grinding surface of the surface treatment element.
  • the rotary brushes described above can be used for polishing in one embodiment. Such a method would therefore be free of any further polishing steps and / or polishing agents.
  • a further step for example in the context of a coarse or fine polishing, is performed the surface processing element or after the surface processing element is switched in the direction of passage.
  • the feed speed of the workpiece and / or the surface processing element in the direction of passage is at least 0.5 m / min and at most 10 m / min, preferably at least 2 m / min and at most 6 m / min.
  • This advancement area can ensure that the stone and / or concrete surface does not initially break or experience other material damage.
  • Another advantage can also be seen in the fact that corresponding abrasion artifacts (polishing direction, curling direction, etc.) can be defined particularly well and inexpensively.
  • At least two surface processing elements are arranged along the direction of passage at the same or different angles relative to the direction of passage, in particular with the two surface processing elements being driven synchronously with respect to direction and / or time.
  • a first surface processing element for example in the form of the rotary brush, is rotated clockwise in the direction of passage and that a further surface processing element is subsequently operated counter to the direction of passage in the direction of passage.
  • the two surface treatment elements are driven with the same or different speeds.
  • the number of revolutions is preferably the same in both directions.
  • a contact pressure of the two surface processing elements in the direction of the workpiece is preferably essentially exactly the same, preferably within the scope of the manufacturing tolerance.
  • the present invention also relates to a device for the surface treatment of a stone and / or concrete surface.
  • the device for surface treatment of a stone and / or concrete surface comprises at least one transport and / or fixing device which moves and / or fixes a workpiece to be machined.
  • the transport and fixing device can specifically be provided to transport the workpiece along the direction of passage.
  • the device described comprises at least one processing machine, which has at least one surface processing element which is movable relative to the surface to be processed, so that the surface can be processed by means of mechanical surface removal, the surface processing element at least during direct mechanical contact with the rock to be processed - and / or the concrete surface is rotated around an axis of rotation in order to produce a grinding contact with the stone and / or concrete surface to be processed by the rotation.
  • the surface treatment element In addition to the rotation of the surface treatment element, the surface treatment element therefore experiences at least one drive in a drive direction different from a direction of rotation.
  • the Figure 1 a side view of a method for surface treatment of a stone and / or concrete surface, wherein the Figure 2 a top view of the in the Figure 1 process shown, whereby in contrast to Figure 1 an angle of attack greater than zero is selected.
  • a device 1000 for surface treatment of a stone and / or concrete surface As from the Figure 1 can be recognized, there is shown a device 1000 for surface treatment of a stone and / or concrete surface.
  • the device 1000 comprises a transport and / or fixing device 5, which guides and transports a workpiece 1 to be processed along a passage direction D1.
  • the device 1000 comprises a processing machine 2, which has at least one surface processing element 3, which is movable relative to the surface 100 to be processed, so that the surface 100 can be processed by means of mechanical surface removal, the surface processing element 3 at least during direct mechanical contact with the The stone and / or concrete surface 100 to be processed is rotated about an axis of rotation R1 in order to produce the grinding contact with the stone and / or concrete surface 100 to be processed by this rotation.
  • the surface treatment element 3 is driven in the direction of the sheet in the context of a presently oscillating drive along a drive direction A1.
  • the surface treatment element 3 is rotated about a direction of rotation R20, the surface treatment element 3 being shown in the present embodiment in the form of a rotary brush with a corresponding rotary shaft and corresponding rotary bristles 31.
  • the workpiece 1 is moved at a feed rate V1 along the direction of passage D1.
  • the workpiece 1 is moved back and forth across the workpiece 1 in a Q1 transverse direction at a previously set oscillation frequency.
  • this angle of incidence 301 shown there is zero degrees with respect to the direction of passage, this angle of incidence 301 as in FIG Figure 2 shown can also have an angle other than zero degrees.
  • the processing machine 2 initially has a first surface processing element 3, which is positioned at a first setting angle 301 relative to the direction of passage, a second surface processing element 3 also being in the form of a rotary brush and at the same setting angle, but correspondingly opposite Direction is employed.
  • a first surface processing element 3 which is positioned at a first setting angle 301 relative to the direction of passage
  • a second surface processing element 3 also being in the form of a rotary brush and at the same setting angle, but correspondingly opposite Direction is employed.
  • Such an angle of this second surface working element relative to the transverse direction Q1 is therefore to be understood as a negative angle. Both angles therefore preferably cancel each other out and, apart from the number of degrees, are set exactly opposite one another.
  • the surface processing elements 3 are preferably arranged in pairs with respect to one another along the passage direction D1, a pair of surface processing elements 3 consisting of two surface processing elements 3, which are each set up mirror-symmetrically relative to the transverse direction Q1 (as shown in FIG Figure 2 shown). It is conceivable that one, two or more pairs for processing the rock and / or concrete surface 100 are arranged along the direction of passage.
  • a workpiece 1, in particular a stone and / or concrete surface 100 can be processed in an inexpensive manner, not only exactly, but also particularly inexpensively.
  • the invention is not limited on the basis of the description and on the basis of the exemplary embodiment; rather, the invention encompasses every new feature and every combination of features, which in particular includes every combination of the patent claims, even if this feature or this combination itself is not explicitly stated in the patent claims or in the embodiment is reproduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP20162836.9A 2019-05-17 2020-03-12 Procédé d'usinage de surface d'une surface de pierre et/ou de béton Pending EP3738713A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019113084.0A DE102019113084A1 (de) 2019-05-17 2019-05-17 Verfahren zur Oberflächenbearbeitung einer Gesteins- und/oder Betonoberfläche

Publications (1)

Publication Number Publication Date
EP3738713A1 true EP3738713A1 (fr) 2020-11-18

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Application Number Title Priority Date Filing Date
EP20162836.9A Pending EP3738713A1 (fr) 2019-05-17 2020-03-12 Procédé d'usinage de surface d'une surface de pierre et/ou de béton

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EP (1) EP3738713A1 (fr)
DE (1) DE102019113084A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020130567A1 (de) 2020-11-19 2022-05-19 Schindler GmbH Verfahren zur Oberflächenbearbeitung einer Gesteins- und/oder Betonoberfläche

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680938A (en) * 1949-11-09 1954-06-15 Osborn Mfg Co Apparatus for conditioning metal sheets and the like
DE3031411A1 (de) * 1979-08-21 1981-03-26 Mitsui Petrochemical Industries, Ltd., Tokio/Tokyo Projektionsschirm
WO2015144274A1 (fr) * 2014-03-25 2015-10-01 Kuendig Ag Dispositif et procédé pour la circulation planétaire d'outils de brossage, ponçage et polissage rotatifs
ITUB20152394A1 (it) * 2015-07-22 2017-01-22 Iri S R L Macchina levigatrice-spazzolatrice per la lavorazione superficiale di piastrelle ceramiche
CN107855889A (zh) * 2017-12-18 2018-03-30 莱纳斯工业设备（苏州）有限公司 一种去毛刺机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401462A3 (fr) * 1989-06-05 1991-01-30 Metten Produktions- Und Handels Gmbh Procédé de fabrication et/ou de traitement de blocs en béton
DE10035637A1 (de) * 2000-07-21 2002-02-07 Richard Scheuerlein Verfahren und Vorrichtung zum Behandeln einer Oberfläche von Betonbauteilen
ITPN20030074A1 (it) * 2003-10-17 2005-04-18 Zanette Prefabbricati Srl Procedimento per generare una particolare conformazione
DE202004018474U1 (de) * 2004-11-29 2005-06-30 Rode Betontechnologie Gmbh Vorrichtung zur effizienten Herstellung von Betonformsteinen ohne mechanische Verdichtung
DE102008036452A1 (de) * 2008-08-05 2010-02-11 Albrecht Braun Gmbh Verfahren zur Herstellung und Nachbearbeitung eines Betonsteins und Betonstein

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680938A (en) * 1949-11-09 1954-06-15 Osborn Mfg Co Apparatus for conditioning metal sheets and the like
DE3031411A1 (de) * 1979-08-21 1981-03-26 Mitsui Petrochemical Industries, Ltd., Tokio/Tokyo Projektionsschirm
WO2015144274A1 (fr) * 2014-03-25 2015-10-01 Kuendig Ag Dispositif et procédé pour la circulation planétaire d'outils de brossage, ponçage et polissage rotatifs
ITUB20152394A1 (it) * 2015-07-22 2017-01-22 Iri S R L Macchina levigatrice-spazzolatrice per la lavorazione superficiale di piastrelle ceramiche
CN107855889A (zh) * 2017-12-18 2018-03-30 莱纳斯工业设备（苏州）有限公司 一种去毛刺机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020130567A1 (de) 2020-11-19 2022-05-19 Schindler GmbH Verfahren zur Oberflächenbearbeitung einer Gesteins- und/oder Betonoberfläche

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