EP1225016A2 - Verfahren zum Füllen der Fliesenpressformen, Ausführungsmittel dafür und so hergestellte Fliesen - Google Patents

Verfahren zum Füllen der Fliesenpressformen, Ausführungsmittel dafür und so hergestellte Fliesen Download PDF

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Publication number
EP1225016A2
EP1225016A2 EP01202861A EP01202861A EP1225016A2 EP 1225016 A2 EP1225016 A2 EP 1225016A2 EP 01202861 A EP01202861 A EP 01202861A EP 01202861 A EP01202861 A EP 01202861A EP 1225016 A2 EP1225016 A2 EP 1225016A2
Authority
EP
European Patent Office
Prior art keywords
grid
carriage
forming cavity
cycle
loading
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.)
Withdrawn
Application number
EP01202861A
Other languages
English (en)
French (fr)
Other versions
EP1225016A3 (de
Inventor
Carlo c/o L.B.-Officine Giglioli
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.)
L B Officine Meccaniche SpA
Original Assignee
L B Officine Meccaniche SpA
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 L B Officine Meccaniche SpA filed Critical L B Officine Meccaniche SpA
Publication of EP1225016A2 publication Critical patent/EP1225016A2/de
Publication of EP1225016A3 publication Critical patent/EP1225016A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/022—Feeding several successive layers, optionally of different materials
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities

Definitions

  • This invention relates in a totally general manner to the manufacture of ceramic tiles, and in particular concerns a method for loading powder materials into the relative forming moulds.
  • the invention also relates to the means for implementing said method, and the products obtained thereby.
  • the ceramic tile manufacturing sector is known to be constantly seeking new and original motifs, and in particular decorations reproducing the appearance of natural stone, such as marble, which is known to present veining and elongate striations of various shapes and colours.
  • the characteristic appearance of said stone derives mainly from the randomness presented by the shape, the length, the distribution, the colour and the shading of said veining and elongate striations.
  • the main object of the present invention is to provide a loading method which is of simple implementation, and by which the tiles leaving the forming mould after each pressing present gradually differing appearances, i.e. veining which differs each time in at least one of the following details: shape, length, distribution, colour, shading, in such a manner as to reproduce the randomness with which such veining is presented in natural materials such as marble.
  • Another object of the invention is to provide means for implementing said method within the context of a simple, rational, reliable, long-lasting and low-cost construction.
  • the method of the invention is based on the technique by which for each complete loading cycle there is created, typically within a containing grid, a powder layer consisting of at least two partly mixed masses of different materials having different characteristics, typically at least two powders of different colour, and to transfer said layer onto a usual ceramic mould having at least one forming cavity, said layer depositing by gravity.
  • At each individual complete loading cycle at least one portion of said layer is displaced in plan view relative to said at least one forming cavity.
  • said displacement is advantageously effected randomly cycle by cycle.
  • said displacement can be coarse or fine.
  • the objects of the invention are attained by the aforesaid method in that after each pressing the tiles present veining or striations which gradually differ, again in consideration of the fact that the parameters which govern the supply of the powders to said containing grid can be regulated, either in combination with said displacement, or not.
  • the means according to the invention comprise a usual carriage driven with reciprocating movement and presenting a powder containing grid, in which the position of at least one constituent element of the grid and/or the shape of said at least one element can be adjusted relative to the carriage at discretion, either automatically or not.
  • Figure 1 is a side view showing the means of the invention associated with a usual loading carriage of a likewise usual ceramic mould.
  • Figure 2 is a section on the line II-II of Figure 1 on a smaller scale.
  • Figure 3 is a part of Figure 2 showing the configuration of the carriage when in its position of maximum withdrawal for collecting the powders.
  • Figure 4 is a view similar to that of Figure 2, showing one of the possible configurations which the loading carriage can assume during deposition of the powders into the cavity of the forming mould.
  • Figure 5 is a part of Figure 4 showing the loading carriage alone, on an enlarged scale.
  • Figure 6 is a view similar to the preceding, showing another possible configuration of the loading carriage.
  • Figure 7 is a part of Figure 5 on an enlarged scale, showing a further configuration of the carriage.
  • Figure 8 is a schematic plan view showing a different method of driving the grid.
  • Said mould 2 is of usual type and will therefore not be described in detail, it being able to present any number of cavities 3 as is well known.
  • the system for loading the powders into the mould 2 is positioned on the front side of the press 1, as is usual.
  • Said system comprises a structure 4 supporting a horizontal table 5, coplanar with the upper mouth of the cavity 3, and on which there slides a usual loading carriage 6 driven with reciprocating movement.
  • the carriage 6 comprises a grid 7 which moves between an advanced position in which it overlies said cavity 3 (see Figures 4 and 5), and a withdrawn position in which it receives the powder mass to be discharged into said cavity 3 (see Figures 1 to 3).
  • the grid 7 is closed lowerly by the table 5 along which the carriage 6 slides, except for the region in which it overlies the cavity 3.
  • a hopper 8 lowerly provided with a narrow elongate mouth, the length of which is positioned transversely to the sliding direction of the carriage 6.
  • Said mouth is inclined in the transverse direction as shown, with its lower longitudinal generator practically flush with the upper face of the grid 7, and is intercepted by a shutter 9 under the control of a cylinder-piston unit 10.
  • the hopper 8 is supported by an overlying frame 80, and communicates with a powder arrival chamber 81 at which a series, namely three in number in the illustrated example, of flexible conduits 83 terminate for supplying differently coloured materials in powder form; a flow regulator valve 88 is positioned where each conduit 83 opens into the chamber 81.
  • Said chamber 81 is provided with at least one level probe 82, said flexible conduits being able to slide in known manner relative to the upper mouth of the chamber 8.
  • the frame 80 is also arranged to move parallel to the sliding direction of the carriage 6 synchronously with the travel of this latter, to discharge the powder mass into the grid 7 by opening the shutter 9.
  • differential production of veining decorations constituting the subject of the present invention, can be achieved either by regulating the degree of opening of at least one valve 88, or by excluding one of said flexible conduits, or by varying the speed with which the material flows through one or more of said flexible conduits 83, or by changing the type of powder served by the same conduits 83, in combination with the characteristic elements of the loading system described hereinafter.
  • the grid 7 is connected to the carriage 6 in such a manner as to be able to be rotated in the two opposing directions about the vertical barycentric axis 99 of its plan profile.
  • Said carriage 6 consists essentially of a rectangular frame, of which the front cross-member carries a pusher 98 for discharging the formed tiles, the longitudinal members each being provided internally with a front ledge 97 and a bush 96.
  • the bush 96 is traversed by a slidable rod 95 which at its front end is hinged to a connecting bar 94, and at its rear end is coupled to a linear actuator 93 fixed to the frame of the carriage 6.
  • a rocker arm 92 At their other end the two connecting bars 94 are connected together by a rocker arm 92 behind which the grid 7 is fixed.
  • the two linear actuators 93 operate in phase opposition, i.e. while one is elongating the other is shortening correspondingly.
  • the respective driving rocker arm 92 presents two end pins 75 which are slidingly received within respective transverse rectilinear slots 74 provided in two longitudinal sliders 73 operated by the linear actuators 393.
  • arched shoes 72 which are fixed to the sides of the grid 7, and engage the rods 95 by a rolling engagement.
  • the grid 7 comprises a peripheral frame in the form of a rectangular rim the aperture of which has dimensions exceeding those of the cavity 3.
  • Said aperture is divided into a plurality of compartments by a multiplicity of sinuous baffles 77.
  • the baffles 77 present different patterns, and slightly different and/or variable thicknesses, some of them connecting together two parallel sides of the rim, others connecting together two consecutive sides of the said rim, and still others being interposed between two adjacent baffles 77.
  • At least one of said baffles 77 is elastically deformable in the horizontal plane, and has at least one end not rigidly connected to the perimetral rim of the grid 7, but joined to it via a cylinder-piston unit 76.
  • Said (at least one) cylinder-piston unit 76 and said actuators 93 are under the control of the central regulating and control unit of the press 1 and carriage 6, which also controls the hopper 8 and the relative accessories.
  • the electronic memory devices of said central control unit there is stored a program or procedure based on a random relationship for adjusting the members used to obtain the veined decoration, mainly the actuators 93 and the cylinder-piston unit 76, but also, as stated heretofore, the accessories of the hopper 8.
  • said procedure is activated at each loading cycle, said randomness involving one or more of said members either for each loading cycle, or not.
  • the grid Each time the grid reaches the end of its withdrawal travel, it lies in the aforestated neutral position, i.e. with the sides of its peripheral rim parallel to those of the carriage 6, where it receives from the hopper 8 a layer of powder comprising differently coloured masses mixed together, at least in the limiting layers.
  • variable-shape baffle 77 connected to the cylinder-piston unit 76 can be in any one of its possible configurations.
  • variable-shape baffle 77 There is nothing to prevent the shape of said variable-shape baffle 77 being adjusted always randomly at the time of depositing the powder into the cavity 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP01202861A 2001-01-22 2001-07-27 Verfahren zum Füllen der Fliesenpressformen, Ausführungsmittel dafür und so hergestellte Fliesen Withdrawn EP1225016A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001RE000002A ITRE20010002A1 (it) 2001-01-22 2001-01-22 Metodo per il caricamento degli stampi ceramici di formatura delle piastrelle, relativi mezzi di attuazione, e piastrelle ottenute con detti
ITRE010002 2001-01-22

Publications (2)

Publication Number Publication Date
EP1225016A2 true EP1225016A2 (de) 2002-07-24
EP1225016A3 EP1225016A3 (de) 2003-09-17

Family

ID=11454016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01202861A Withdrawn EP1225016A3 (de) 2001-01-22 2001-07-27 Verfahren zum Füllen der Fliesenpressformen, Ausführungsmittel dafür und so hergestellte Fliesen

Country Status (2)

Country Link
EP (1) EP1225016A3 (de)
IT (1) ITRE20010002A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102092093A (zh) * 2010-11-19 2011-06-15 梁海果 一种陶瓷砖生产中用的变形格栅装置
IT201800007414A1 (it) * 2018-07-23 2020-01-23 Dispositivo di caricamento e di distribuzione secondo disegno di materiali in polvere per decori
WO2020048644A1 (de) * 2018-09-06 2020-03-12 Franz Carl Nüdling Basaltwerke GmbH + Co. KG Vorrichtung zur herstellung von betonsteinen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109702862B (zh) * 2018-12-26 2020-07-07 广西南宁武鸣启行陶瓷有限公司 一种通体纹理石瓷砖的制备方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431361A1 (fr) * 1978-07-19 1980-02-15 Demler Sa Ets Tiroir flottant
EP0605930A1 (de) * 1993-01-08 1994-07-13 CERAMICA MIRAGE S.p.A. Verfahren zum Herstellen von trockenen Fliesen, mit seiner Formanlage und den hergestellten Fliesen
EP0941826A2 (de) * 1998-03-10 1999-09-15 L.B. Officine Meccaniche S.p.A. Verfahren zur Herstellung einer dekorierten Fliese , entsprechende Vorrichtung zum Füllen der Pressformhohlräume und so hergestellte Fliese

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431361A1 (fr) * 1978-07-19 1980-02-15 Demler Sa Ets Tiroir flottant
EP0605930A1 (de) * 1993-01-08 1994-07-13 CERAMICA MIRAGE S.p.A. Verfahren zum Herstellen von trockenen Fliesen, mit seiner Formanlage und den hergestellten Fliesen
EP0941826A2 (de) * 1998-03-10 1999-09-15 L.B. Officine Meccaniche S.p.A. Verfahren zur Herstellung einer dekorierten Fliese , entsprechende Vorrichtung zum Füllen der Pressformhohlräume und so hergestellte Fliese

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102092093A (zh) * 2010-11-19 2011-06-15 梁海果 一种陶瓷砖生产中用的变形格栅装置
IT201800007414A1 (it) * 2018-07-23 2020-01-23 Dispositivo di caricamento e di distribuzione secondo disegno di materiali in polvere per decori
WO2020048644A1 (de) * 2018-09-06 2020-03-12 Franz Carl Nüdling Basaltwerke GmbH + Co. KG Vorrichtung zur herstellung von betonsteinen
CN112654478A (zh) * 2018-09-06 2021-04-13 弗朗茨卡尔纽丁巴萨尔特沃克有限责任两合公司 用于制造混凝土砌块的装置
US11364655B2 (en) 2018-09-06 2022-06-21 Franz Carl Nüdling Basaltwerke GmbH + Co. KG Device for producing concrete blocks
EP4169687A1 (de) * 2018-09-06 2023-04-26 Franz Carl Nüdling Basaltwerke GmbH + Co. KG Vorrichtung zur herstellung von betonsteinen
US11904499B2 (en) 2018-09-06 2024-02-20 Franz Carl Nüdling Basaltwerke GmbH + Co. KG Device for producing concrete blocks

Also Published As

Publication number Publication date
EP1225016A3 (de) 2003-09-17
ITRE20010002A0 (it) 2001-01-22
ITRE20010002A1 (it) 2002-07-22

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