Abstract:
A detection system (1) and method to detect the density of a layer of compacted ceramic powder (KP); the detection system (1) comprises: a compacting device (8) to compact the ceramic powder (CP) and obtain the layer of compacted ceramic powder (KP); a conveyor assembly (3) to receive and move along a given path (P) the layer of compacted ceramic powder (KP); a measuring device (17) to measure at least a thickness of at least one cross section of said layer of compacted ceramic powder (KP); a weighing device (22) to determine a weight of at least one first portion (P1) of the layer of compacted ceramic powder (KP); a detection device (18) to detect a quantity correlated with the density of the first portion (P1) of the layer of compacted ceramic powder (KP); and a control assembly (23) designed to estimate an actual density of at least one second portion (P2) of the layer of compacted ceramic powder (KP) or of a further layer of compacted ceramic powder (KP) based on data detected by the detection device (18), by the weighing device (22) and by the measuring device (17).
Abstract:
A method for manufacturing ceramic articles (2) is described comprising a step of feeding, during which at least two different ceramic powders are fed so as to obtain a strip (6) of ceramic powders having at least a first zone (7) and at least a second zone (8) having a given shape; a step of compacting, during which the strip (6) of ceramic powders is compacted so as to obtain a compacted layer (11) of ceramic powders, which is expanded relative to the strip (6) of ceramic powders; a step of determination, during which expansion of the layer (11) of powders is determined; and a step of printing, during which a decoration having a modified shape based on the given expansion is applied on the surface of the compacted layer (11) of ceramic powders.
Abstract:
An improved ceramic slab (1) and a method for its manufacture. The slab (1) comprises a continuous ceramic matrix (2) internally incorporating reinforcement fiber (3) having resistance characteristics superior to those of the ceramic matrix itself. The method comprises the following steps: creating, on a support surface (11), a first layer of ceramic powder (5); distributing an assembly of reinforcement fibers (3) over at least an area of the top surface (50) of said first layer (5) of ceramic powder; covering the reinforcement fibers, to create at least a second layer (6) of ceramic powder on said first layer (5), in order to obtain a soft ceramic blank of desired thickness containing the reinforcement fibers; pressing said soft blank to compact the powders and obtain an unfired ceramic slab; subjecting said unfired ceramic slab to firing, to obtain a ceramic slab (1) comprising a continuous ceramic matrix (2) with the reinforcement fibers (3) incorporated.
Abstract:
A method for the production of ceramic products (2) comprising: a compacting step, in which a powder material (5) is compacted; a supplying step, in which a first ceramic powder (7) is fed to a first conveyor assembly (10) so as to determine a base layer (13); a removal step, in which a removal device (16) removes part of the first ceramic powder (7) so as to obtain a groove (17) in the base layer (13);a deposition step, in which a delivering device (20) deposits, into the groove (17), a second ceramic powder (8), different from the first ceramic powder (7), for a combined layer; a feeding step, during which the combined layer is fed downwards crosswise to the conveying direction (D), by means of the feeding assembly (21), to a second conveyor assembly (25).
Abstract:
A supply system for an inkjet printer (2) comprising a plurality of ejection nozzles (4); the supply system (1) comprises a supply element (5), which is adapted to contain ink and to which the ejection nozzles (4) are fluidically connected; a collection manifold (7), which is fluidically connected to the nozzles (4) and to the supply element; a suction assembly (9) for reducing the pressure inside the supply element (5); and a conveying device (12), in particular a pump, which is adapted to push the ink from the collection manifold (7) through the supply element (5).
Abstract:
A method and a device for controlled dispensing of a coloured substance in the manufacture of ceramic products, by means of a number of vibrating distributor elements (210) which are made to vibrate repeatedly, each time by a respective electrical control signal (B) comprising a sequence of pulses of constant frequency, in such a way as to release the coloured substance. The method comprises regulating, independently for each vibrating distributor (210), at least one characteristic parameter of the electrical control signal (B) to which the vibrating distributor (210) is subjected, the characteristic parameter being proportional to the quantity of coloured substance dispensed by the vibrating distributor (210).
Abstract:
A method for decorating ceramic tiles (2), comprising the steps of: decorating at least one first portion of the exposed face (20) of the ceramic tile (2) by means of at least one printing operation by a digital printing system; decorating at least one second portion of the exposed face (20) of the ceramic tile (2) by means of at least one printing operation by a contact printing system.
Abstract:
A detection system (1) and method to detect the density of a layer of compacted ceramic powder (KP); the detection system (1) comprises: a compacting device (8) to compact the ceramic powder (CP) and obtain the layer of compacted ceramic powder (KP); a conveyor assembly (3) to receive and move along a given path (P) the layer of compacted ceramic powder (KP); a measuring device (17) to measure at least a thickness of at least one cross section of said layer of compacted ceramic powder (KP); a weighing device (22) to determine a weight of at least one first portion (PI) of the layer of compacted ceramic powder (KP); a detection device (18) to detect a quantity correlated with the density of the first portion (PI) of the layer of compacted ceramic powder (KP); and a control assembly (23) designed to estimate an actual density of at least one second portion (P2) of the layer of compacted ceramic powder (KP) or of a further layer of compacted ceramic powder (KP) based on data detected by the detection device (18), by the weighing device (22) and by the measuring device (17).
Abstract:
Described is a line (100) for the production of individual products in succession in a continuous cycle comprising: a plurality of machines (200) interconnected by one or more conveyors (7) according to a predetermined sequence; for each machine (200), a local control panel (201 ) positioned on the machine (200) and forming an interface to allow a user to configure the machine (200) with setting data for that machine (200); a supervision unit (9) connected to the machines (200) of the line (100) to receive and transmit data according to an activity for monitoring machines (200), and having a respective interface for the user; a portable control panel (8), having a display unit, an interface for the user, a connection module, for putting the portable control panel (8) in wireless communication with all the local control panels (201 ) of the machines (200) of the line (100) and with the supervision unit (9), and a processor programmed for displaying on the display unit the interface of the local control panels (201 ) of each machine (200), for allowing the user to configure the machine (200) with the setting data, from a remote position using the portable control panel (8).
Abstract:
A method for manufacturing a continuous press belt or a vulcanizing matrix (100) of a punch of a ceramic die for creating ceramic slabs having a structured surface, comprising following steps: advancing the belt or the matrix by steps of a submultiple of a length of the belt or the matrix; at each advancement step, subjecting a strip of belt or matrix having a width equal to the step to action of at least a piezo-electrically-controlled ink-jet printing head (104), piloted by an image, in order to obtain on the belt or on the matrix a deposit of ejected material reproducing the image, the head being movable transversally to the belt or the matrix and suitable for ejecting an ink jet which belongs to a class of inks that are controlledly hardenable by ultraviolet radiation; subjecting the strip of material emitted by the head to action of an ultraviolet lamp (107) for hardening the ink.