EP1955810B1 - Grinding process for ceramic tiles - Google Patents

Grinding process for ceramic tiles Download PDF

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Publication number
EP1955810B1
EP1955810B1 EP08381002A EP08381002A EP1955810B1 EP 1955810 B1 EP1955810 B1 EP 1955810B1 EP 08381002 A EP08381002 A EP 08381002A EP 08381002 A EP08381002 A EP 08381002A EP 1955810 B1 EP1955810 B1 EP 1955810B1
Authority
EP
European Patent Office
Prior art keywords
grinding
tiles
discs
machine
grinding machine
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.)
Not-in-force
Application number
EP08381002A
Other languages
German (de)
French (fr)
Other versions
EP1955810A2 (en
EP1955810A3 (en
Inventor
Francisco Vigil Fernandez
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.)
Maincer SL
Original Assignee
Maincer SL
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 Maincer SL filed Critical Maincer SL
Publication of EP1955810A2 publication Critical patent/EP1955810A2/en
Publication of EP1955810A3 publication Critical patent/EP1955810A3/en
Application granted granted Critical
Publication of EP1955810B1 publication Critical patent/EP1955810B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/18—Apparatus or processes for treating or working the shaped or preshaped articles for removing burr

Definitions

  • the present invention relates to a grinding process used in the ceramic piece manufacturing industry and, more specifically, of tiles, to guarantee that the facing sides of the pieces are parallel to each other and that the adjacent sides are perpendicular.
  • the grinding machine does not need an additional contribution of water since the temperatures that are reached therein are not high.
  • the grinding machine presents a series of grinding discs placed in each grinding section at different heights that guarantee a single cut of surplus material.
  • this process requires water to cool the diamond discs or the grinding wheels and avoid their burning, but in this way, upon the combination of the water with the dust coming from the wear of the sides of the tiles, clay that needs to be eliminated in an additional cleaning process is created.
  • the present invention relates to a grinding machine of those used in the ceramic piece manufacturing industry and, more specifically, of tiles, to guarantee that the facing sides of the pieces are parallel to each other and that the adjacent sides are perpendicular.
  • the tiles coming from the enamelling and decorating stage are centred in the grinding machine by means of rails that adjust to the size of the piece, which are detected by a sensor.
  • the tile is moved until it makes contact with grinding discs placed in grinding sections at different heights which guarantee a single cut of the surplus material, where the rotation speed and the height of the discs is adjustable.
  • the grinding sections can present their grinding discs in the lower piece or in the upper piece to act on the tile's lower or upper piece, respectively.
  • the grinding machine also presents a bevelled section of the lower edges of the tile by means of grinding wheels.
  • the pieces are cleaned to eliminate the residual dust from the process before putting them in the kiln for their firing.
  • Figure 1 shows a plan view of the grinding machine of the present invention.
  • Figure 2 show an elevational view of the machine's cutting area of the present invention.
  • Figure 3 shows a side view of the cutting area of the grinding machine of the present invention where the grinding discs can be observed in the upper piece of the tile, where the pulleys have been omitted for a better understanding.
  • Figure 4 shows a side view of the machine's cutting area of the present invention where the grinding discs can be observed in the lower piece of the piece, where the pulleys have been omitted for a better understanding.
  • the present invention relates to a grinding machine for ceramic tiles that presents grinding discs (7) placed at different heights in each grinding section which guarantee a single cut of surplus tile material (1) before the firing.
  • the tiles (1) coming from the enamelling and decorating stage are centred in the grinding machine by means of lateral positioning rails (2, 3) which adjust to the size of the piece, which is detected by a sensor (not shown in the Figures).
  • the lateral positioning rails (2, 3) comprise a lateral rail (2) with a brace to hold the piece and a fixed lateral positioning rail (3).
  • the tile (1) is moved by means of belts (4) guided by pulleys (5) and actuated by a motor (6) towards the grinding discs (7), which in this example of preferred embodiment there are six, placed in three grinding sections so that there are two discs in each section, one on each side of the tile, that guarantee a single cut of surplus tile material (1), where the height of the grinding discs (7) is determined by means of the actuation of positioning motors (8).
  • the grinding discs (7) act on the upper piece of the tile (1) and each one of them is actuated by a cutting motor (9).
  • the grinding machine also presents a bevelled section of the lower edges of the tile (1) by means of grinding wheels (not shown in the Figures).
  • the tiles (1) are cleaned by means of blowing for the elimination of the residual dust from the process before putting them into the kiln for their firing.
  • the grinding machine presents eight and ten grinding discs (7) in four and five grinding sections, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Glass Compositions (AREA)

Abstract

The present invention has the object of a grinding machine for ceramic tiles (1) of those used in the ceramic piece manufacturing industry and, more specifically, tiles, to guarantee that the facing sides of the pieces are parallel to each other and that the adjacent sides are perpendicular, where the grinding machine does not need an additional supply of water since the temperatures that are reached therein are not high and, furthermore, presents a series of grinding discs (7) placed in each grinding section at different heights that guarantee a single cut of surplus material.

Description

    OBJECT OF THE INVENTION
  • The present invention relates to a grinding process used in the ceramic piece manufacturing industry and, more specifically, of tiles, to guarantee that the facing sides of the pieces are parallel to each other and that the adjacent sides are perpendicular.
  • Due to its special configuration, the grinding machine does not need an additional contribution of water since the temperatures that are reached therein are not high.
  • Likewise, the grinding machine presents a series of grinding discs placed in each grinding section at different heights that guarantee a single cut of surplus material.
    • BACKGROUND OF THE INVENTION
  • Grinding machines for ceramic pieces, and more precisely, tiles, which use grinding wheels or diamond discs to give the final finish to the tile, are only too well known in the state of the art.
  • In previous machines, as the piece is already fired before the grinding process, a large supply of energy is necessary to carry out the incisions in the fired piece.
  • Likewise, this process requires water to cool the diamond discs or the grinding wheels and avoid their burning, but in this way, upon the combination of the water with the dust coming from the wear of the sides of the tiles, clay that needs to be eliminated in an additional cleaning process is created.
  • Furthermore, being a fired material, it becomes harder and the grinding is carried out by means of progressive elimination of the surplus material, presenting the risk that the pieces break because of their own hardness.
  • It is known form the state of the art a grinding machine as the one disclosed in US 6416382 which is a bilateral automatic machine for edge-machining plates of glass, stone-like materials and the like. It is also known a method for sizing natural- or synthetic-stone elements, particularly ceramic tiles, and machine for carrying out the method as the one disclosed in EP 0865870 , and finally it is known a machine for polishing edges as the one disclosed in FR 2687340 .
  • All of these drawbacks are overcome by means of the grinding process that will now be described, wherein the machine presents a series of grinding discs placed in each grinding section at different heights that guarantee a single cut of the surplus material of the piece before firing.
    • DESCRIPTION OF THE INVENTION
  • The present invention relates to a grinding machine of those used in the ceramic piece manufacturing industry and, more specifically, of tiles, to guarantee that the facing sides of the pieces are parallel to each other and that the adjacent sides are perpendicular.
  • The tiles coming from the enamelling and decorating stage are centred in the grinding machine by means of rails that adjust to the size of the piece, which are detected by a sensor.
  • Subsequently, the tile is moved until it makes contact with grinding discs placed in grinding sections at different heights which guarantee a single cut of the surplus material, where the rotation speed and the height of the discs is adjustable.
  • The grinding sections can present their grinding discs in the lower piece or in the upper piece to act on the tile's lower or upper piece, respectively.
  • The grinding machine also presents a bevelled section of the lower edges of the tile by means of grinding wheels.
  • At the exit of the grinding machine, the pieces are cleaned to eliminate the residual dust from the process before putting them in the kiln for their firing.
    • DESCRIPTION OF THE DRAWINGS
  • The present specification is complemented with a set of illustrative plans of the preferred, and never limitative, example of the invention.
  • Figure 1 shows a plan view of the grinding machine of the present invention.
  • Figure 2 show an elevational view of the machine's cutting area of the present invention.
  • Figure 3 shows a side view of the cutting area of the grinding machine of the present invention where the grinding discs can be observed in the upper piece of the tile, where the pulleys have been omitted for a better understanding.
  • Figure 4 shows a side view of the machine's cutting area of the present invention where the grinding discs can be observed in the lower piece of the piece, where the pulleys have been omitted for a better understanding.
    • PREFERRED EMBODIMENT OF THE INVENTION
  • In view of the previous statements, the present invention relates to a grinding machine for ceramic tiles that presents grinding discs (7) placed at different heights in each grinding section which guarantee a single cut of surplus tile material (1) before the firing.
  • The tiles (1) coming from the enamelling and decorating stage are centred in the grinding machine by means of lateral positioning rails (2, 3) which adjust to the size of the piece, which is detected by a sensor (not shown in the Figures).
  • The lateral positioning rails (2, 3) comprise a lateral rail (2) with a brace to hold the piece and a fixed lateral positioning rail (3).
  • Next, the tile (1) is moved by means of belts (4) guided by pulleys (5) and actuated by a motor (6) towards the grinding discs (7), which in this example of preferred embodiment there are six, placed in three grinding sections so that there are two discs in each section, one on each side of the tile, that guarantee a single cut of surplus tile material (1), where the height of the grinding discs (7) is determined by means of the actuation of positioning motors (8).
  • In this example of preferred embodiment the grinding discs (7) act on the upper piece of the tile (1) and each one of them is actuated by a cutting motor (9).
  • The grinding machine also presents a bevelled section of the lower edges of the tile (1) by means of grinding wheels (not shown in the Figures).
  • At the exit of the grinding machine, the tiles (1) are cleaned by means of blowing for the elimination of the residual dust from the process before putting them into the kiln for their firing.
  • In other examples, the grinding machine presents eight and ten grinding discs (7) in four and five grinding sections, respectively.
  • Variations in materials, shapes, sizes and availability of the components, described in a non-limitative fashion, do not alter the essentiality of this invention as defined in the appended claims, this being sufficient to go through with its reproduction by a person skilled in the art.

Claims (4)

  1. A grinding process for ceramic tiles comprising the following steps:
    - the tiles coming out from an enamelling and decorating stage are centred in a grinding machine by means of rails that adjust to the size of the tiles;
    - every tile is moved until it makes contact with grinding discs placed in grinding sections at different heights;
    - grinding of the tiles is carried out by the grinding discs;
    - the tiles exiting from the grinding machine are cleaned;
    - the tiles are put in a kiln for their firing.
  2. A grinding process according to claim 1 characterized in that some of the grinding sections have their discs on the upper part of the grinding machine.
  3. A grinding process according to claim 1 or 2 characterized in that some of the grinding sections have their discs on the lower part of the grinding machine.
  4. A grinding process according to claim 1 characterized in that additionally the tiles are submitted to bevelling process of the lower edges of the tiles in a bevelled section.
EP08381002A 2007-02-12 2008-01-18 Grinding process for ceramic tiles Not-in-force EP1955810B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200700372A ES2334597B1 (en) 2007-02-12 2007-02-12 RECTIFIED MACHINE FOR CERAMIC TILES.

Publications (3)

Publication Number Publication Date
EP1955810A2 EP1955810A2 (en) 2008-08-13
EP1955810A3 EP1955810A3 (en) 2008-10-22
EP1955810B1 true EP1955810B1 (en) 2010-05-19

Family

ID=39362725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08381002A Not-in-force EP1955810B1 (en) 2007-02-12 2008-01-18 Grinding process for ceramic tiles

Country Status (4)

Country Link
EP (1) EP1955810B1 (en)
AT (1) ATE468201T1 (en)
DE (1) DE602008001258D1 (en)
ES (2) ES2334597B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2145729A1 (en) 2008-07-17 2010-01-20 Maincer, S.L. Machine for unifying tile profiles
CN104440450A (en) * 2014-12-18 2015-03-25 天津市景泰科技发展有限公司 Automatic polishing device
CN108608563B (en) * 2018-05-10 2020-02-14 安徽省亚欧陶瓷有限责任公司 Special engraving device for full-automatic ceramic surface processing
CN113021114B (en) * 2021-03-17 2022-06-14 江西亿美瓷艺有限公司 Wall ceramic tile cutting back edge polishing equipment
CN113319030B (en) * 2021-06-24 2022-05-31 阳西博德精工建材有限公司 Cleaning device and cleaning method capable of edging tiles at multiple angles
CN114603422B (en) * 2022-03-18 2023-03-14 佛山市顺德区都信建材有限公司 Antifouling and antiskid treatment method for ceramic tiles
CN115042043B (en) * 2022-06-27 2023-09-01 广东卡金新材料科技有限公司 Glazed tile production corner grinding device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687340A1 (en) * 1992-02-17 1993-08-20 Thibaut Technologies Machine for polishing edges
JPH07109795A (en) * 1993-10-12 1995-04-25 Sanshu:Kk Roof tiles and manufacture thereof
IT1292686B1 (en) * 1997-03-11 1999-02-11 Pragma S R L METHOD FOR CALIBRATING NATURAL OR ARTIFICIAL STONE ELEMENTS, PARTICULARLY CERAMIC TILES, AND RELATED MACHINE.
ITMI991382A1 (en) 1999-06-21 2000-12-21 Bavelloni Z Spa AUTOMATIC BILATERAL MACHINE FOR THE PROCESSING OF THE EDGES OF SLABS GLASS STONE AND SIMILAR MATERIALS
IT1310842B1 (en) * 1999-09-28 2002-02-22 Vasco Benassati DEBURRING EQUIPMENT FOR CERAMIC PRODUCTS, IN PARTICULAR GLAZED TILES.
CA2420865A1 (en) * 2000-12-08 2003-02-27 Averkamp, Ingo Machine for edge-milling concrete blocks that have not yet hardened

Also Published As

Publication number Publication date
DE602008001258D1 (en) 2010-07-01
ES2334597A1 (en) 2010-03-12
EP1955810A2 (en) 2008-08-13
ES2344972T3 (en) 2010-09-10
ATE468201T1 (en) 2010-06-15
EP1955810A3 (en) 2008-10-22
ES2334597B1 (en) 2011-01-07

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