Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
  • B01F23/50—Mixing liquids with solids
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
  • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
  • B01F33/80—Mixing plants; Combinations of mixers
  • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
  • B01F33/80—Mixing plants; Combinations of mixers
  • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
  • B01F33/844—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made
  • B01F33/8442—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
  • B01F33/80—Mixing plants; Combinations of mixers
  • B01F33/85—Mixing plants with mixing receptacles or mixing tools that can be indexed into different working positions
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/20—Measuring; Control or regulation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/20—Measuring; Control or regulation
  • B01F35/21—Measuring
  • B01F35/211—Measuring of the operational parameters
  • B01F35/2117—Weight
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/20—Measuring; Control or regulation
  • B01F35/21—Measuring
  • B01F35/2131—Colour or luminescence
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/714—Feed mechanisms for feeding predetermined amounts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
  • B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/80—Forming a predetermined ratio of the substances to be mixed
  • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
  • B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
  • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
• • 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
  • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers

Definitions

• the present invention relates to a tintometric system for the production of silk- screening colorants for ceramic products, particularly tiles, bricks, slabs and the like.
• the silk-screening bases consist of a neutral powdered material mixed with a liquid substance that acts as a vehicle, with a white colour and are generally used as a filler, the colour of which is modified following mixing with ceramic colouring fluids in pre-established proportions.
• the ceramic colouring fluids consist of a colouring substance in the form of powder which, once mixed with the specific liquid vehicle (silk- screening oil), acquires the fluid consistency of liquids.
• the vehicle (silk-screening oil) in which the colouring substances of the ceramic colouring fluids are mixed in fact, must unfortunately have specific characteristics compatible with the vehicles contained in the silk-screening bases.
• the ceramic colouring fluids in liquid form must be regularly shaken to keep the powdered colorant substances in suspension.
• the main aim of the present invention is to provide a tintometric system for the production of silk-screening colorants for ceramic products, particularly tiles, bricks, slabs and the like, that is practical and easy to use and functional and allows reducing the wastes associated with traditional systems, being generally more economical.
• Another object of the present invention is to provide a tintometric system for the production of silk-screening colorants for ceramic products, particularly tiles, bricks, slabs and the like that allows to overcome the mentioned drawbacks of the background art in the ambit of a simple, rational, easy, effective to use and low cost solution.
• this tintometric system for the production of silk-screening colorants for ceramic products, particularly tiles, bricks, slabs and the like, characterized in that it comprises:
• At least a dispensing station for at least partially filling at least a containing recipient with a pre-established quantity of at least a base product chosen from the list comprising a liquid silk-screening base and a neutral powder for liquid silk-screening bases;
• At least a batching station for dispensing at least a powdered colorant substance in at least a batching container which is associated with measuring means suitable for measuring a pre-established quantity of said powdered colorant substance dispensed in said batching container, said pre-established quantity of powdered colorant substance being transferable into said containing recipient;
• processing and control unit operatively associated with said dispensing station and with said batching station and suitable for calculating said pre-established quantities of the base product and of the powdered colorant substance
• a mixer station suitable for mixing said base product and said powdered colorant substance in said containing recipient to obtain a fluid silk-screening colorant for ceramic products.
• figure 1 is a plan view of the system according to the invention
• figure 2 is a side view of the system of figure 1
• figure 3 is a side view and on an enlarged scale of a detail of the system of figure 1
• figure 4 is a side, partial view and on an enlarged scale of an alternative embodiment of the system according to the invention
• figure 5 is a side, partial view and on an enlarged scale of another embodiment of the system according to the invention
• figure 6 is a side, partial view and on an enlarged scale of a further embodiment of the system according to the invention
• figure 7 is a side, partial view and on an enlarged scale of still another embodiment of the system according to the invention
• figure 8 is a side, partial view and on an enlarged scale of
• silk- screening colorant is meant a substance in fluid state intended for the ceramic industry not only to colour silk-screening pastes (to be used on screen silk- screening, silicone roller machines or the like), but also to colour glazes and slips.
• the system 1 comprises a feed line 2 suitable for moving a succession of containing recipients 3, of the type of bins or the like, between an inlet station 4, where the bins 3 are loaded on the feed line 2, and an outlet station 5, from where instead the bins 3 are picked up and which is arranged downstream of the inlet station 4.
• the feed line 2 is defined by a plurality of roller conveyors arranged in series above which the bins 3 are conveyed; alternative embodiments of the present invention cannot however be ruled out in which the feed line 2 is defined by other movement systems (e.g.: braces or conveyor belt).
• a dispensing station 6 is located for the at least partial filling of a bin 3 with a pre- established quantity of a base product 7, 16.
• the base product 7, 16 in particular, is selected from the list comprising a liquid silk-screening base 7 and a neutral powder for liquid silk-screening bases 16; in the embodiment shown in the figures from 1 to 3, for example, the base product 7, 16 consists of a liquid silk-screening base 7.
• the system 1 comprises a plurality of collection tanks 8 for containing a plurality of silk-screening bases 7 of types different the one from the other; each collection tank 8 is connected to the dispensing station 6 by means of a specific hydraulic circuit 9.
• a batching station 10 is also located for dispensing at least a powdered colorant substance 11 in at least a batching container 17 which is associated with measuring means 18 suitable for measuring a pre-established quantity of the powdered colorant substance 11 dispensed in the batching container 17, for the subsequent transfer of such pre-established quantity into the bins 3.
• the system 1 comprises a plurality of collection containers 12 for the dry containing of an equal number of powdered colorant substances 11 each different the one from the other.
• the collection containers 12 are associated with a corresponding batching device 19 and are all mounted above the feed line 2.
• valve means for the transfer of the powdered colorant substances 11 into the bins 3.
• valve means is meant a generic mechanism/device able to allow the powdered colorant substances 11 to pass from the batching containers 17 into the underlying bins 3, e.g., a real valve located at the base of the batching containers 17, or a door with opening bottom, or a mechanism for tipping up the batching containers 17.
• the measuring means 18 consist, e.g., of a series of weighing devices (e.g.: load cells or the like arranged below the batching containers 17), which allow quantifying the contents until the pre-established quantity is reached.
• a mixer station 13 is provided suitable for mixing the liquid silk-screening base 7 together with the powdered colorant substance/s 11 poured into the bins 3, so as to obtain a fluid silk-screening colorant 14 for ceramic products which has a pre-established colour in fluid, homogeneous and uniform form.
• the mixer station 13 e.g., comprises an agitating apparatus 13a which is located immediately downstream of the batching station 10 and upstream of the outlet station 5 and which is suitable for agitating the bins 3 and with them their contents.
• the system 1 also has a processing and control unit 15 which is operatively associated with the dispensing station 6 and with the batching station 10 and is suitable for calculating the pre-established quantities of liquid silk-screening base 7 and of powdered colorant substance/s 11 to be introduced into the bins 3.
• the processing and control unit 15 is operatively associable with a spectrophotometric system able to detect the preset colour tone to be obtained in the fluid silk-screening colorant 14 starting with an initial sample.
• the processing and control unit 15 calculates the batch of the liquid silk-screening base 7 and of the powdered colorant substance/s necessary to obtain, at the end of the mixing done by the agitating apparatus 13a, the fluid silk-screening colorant 14 of the pre-established colour.
• the processing and control unit 15 is preset to make the bins 3 move forward on the feed line 2 starting from the inlet station 4, stop these at the dispensing station 6, dispense the liquid silk-screening base 7 in a preset quantity, make the bins 3 move forward until they stop at the batching station 10, batch a preset quantity of powdered colorant substance/s 11 and transfer this into the bins 3, make the bins 3 move forward as far as the agitating apparatus 13a, command the operation of the agitating apparatus 13a and, finally, allow the bins 3 to reach the outlet station 5 from where they can be picked up.
• the operation of the system 1 described and illustrated in the figures from 1 to 3 is split into the following phases:
• inlet station 4, outlet station 5, dispensing station 6 and mixer station 13 are substantially identical to the solution of the figures from 1 to 3 and, therefore, are neither shown on the drawing tables nor the subject of further detailed explanation, its being understood that for these it is best to refer to the above description.
• This embodiment differs from the previous one inasmuch as the batching station 10, besides the batching containers 17 and the measuring means 18, also comprises first pouring means 21 designed to pour a liquid vehicle for ceramic colouring fluids 22 into the batching containers 17.
• the liquid vehicle for ceramic colouring fluids 22 consists in a silk-screening oil.
• the batching station 10 also comprises agitating means 23 for mixing the powdered colorant substance/s 11 together with the silk-screening oil 22 in the batching containers 17 before transferring everything into the bins 3.
• each batching container 17 with the corresponding powdered colorant substance 11 is done by measuring its weight until a pre-established quantity is reached calculated by the processing and control unit 15; afterwards a pre-established quantity of silk- screening oil 22 is also poured into the batching container 17 again measured by means of the weighing devices 18, which silk-screening oil 22 is mixed together with the powdered colorant substance 11 by means of the agitating means 23. All this makes it possible to make the powdered colorant substance 11 more flowable and therefore more easily transferable into the bins 3 by opening the valve means 20.
• the base product 7, 16 consists in a liquid silk-screening base 7 batched into the bins 3 by means of the dispensing station 6.
• Other embodiments are however possible such as those shown in the figures 5 and 6 in which the base product 7, 16 consists in a neutral powder for liquid silk-screening bases 16.
• the dispensing station 6 is designed to dispense a neutral powder for liquid silk-screening bases 16 into the bins 3, e.g., by means of a weighing system identical to that of the batching station 10.
• the bins 3 reach the batching station 10 containing only the neutral powder for liquid silk- screening bases 16 and will therefore not only be filled with the powdered colorant substance/s 11 but also with a liquid vehicle for liquid silk-screening bases 24, so that the mixing of the neutral powder for liquid silk-screening bases 16 and the liquid vehicle for liquid silk- screening bases 24 results in the formation of the liquid silk-screening base 7.
• the batching station 10 also comprises second pouring means 25 for pouring the liquid vehicle for liquid silk-screening bases 24 into the bins 3; the correct quantity of such liquid vehicle is calculated by means of special measuring apparatus 26, of the load cell type or the like positionable below the roller conveyors 2, or by means of flow rate measuring devices through the second pouring means 25.
• the base product 7, 16 dispensed in the dispensing station 6 again consists of the neutral powder for liquid silk- screening bases 16, which is the only contents of the bins 3 that reach the batching station 10.
• the batching station 10 is again provided with second pouring means 25 for pouring the liquid silk-screening bases 24 which, however, unlike the solutions shown in the figures 5 and 6, is suitable for pouring the liquid vehicle for liquid silk-screening bases 24 not directly into the bins 3 but through the batching containers 17 after these have been filled with the pre-established quantities of powdered colorant substances 11.
• the powdered colorant substances 11 are more easily transferred into the bins 3 and, at the same time, the batching containers 17 can be cleaned as a result of the flow of the liquid vehicle for liquid silk-screening bases 24.
• the second pouring means 25 shown in the figure 7 be designed to pour the liquid silk-screening base 7 directly into the batching containers 17; in this case, the dispensing station 6 and the batching station 10 can be integrated into one, being suitable for receiving empty bins 3, measuring the pre-established quantity of powdered colorant substance/s 11 in the batching containers 17 and then pouring the liquid silk-screening base 7 into the bins 3 passing through the batching containers 17, to completely remove the powdered colorant substance/s 11 contained in them and transfer it into the bins 3.
• Alternative embodiments of the invention are finally possible in which the batching containers 17 have a shape different to that shown in the previous illustrations.
• the batching container 17 is obtained from a narrowing of the base of the bins 3 and the batching of the powdered colorant substance/s 11 occurs inside the bins themselves.
• FIG. 9 A further embodiment of the invention is shown in figure 9 and presents the batching containers 17 which are mounted above the bins 3. In this case, therefore, the batching containers 17 move forward together with the bins 3 until they reach the collection containers 12, from where the powdered colorant substance/s 11 is made to fall.
• the batching containers 17 have specific weighing devices 18, for measuring the pre-established quantity of powdered colorant substance/s 11, and valve means 20 of the type suitable for overturning the batching containers 17 to transfer the contents into the underlying bins 3. It has in point of fact been ascertained how the described invention achieves the proposed objects.
• the particular solution of providing a tintometric system according to the invention in which the powdered colorant substances are stored dry in collection containers and are intended to be mixed with the silk-screening base or with a liquid vehicle in an extemporaneous way only at the time of the production of the fluid silk-screening colorants, allows overcoming in a practical, easy and functional way the drawbacks of the state of the art tied to the need to keep the powdered colorant substances in suspension and/or to the compatibility between the silk-screening bases and the silk- screening oil of the traditional ceramic colouring fluids.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Analytical Chemistry (AREA)
• Dispersion Chemistry (AREA)
• Accessories For Mixers (AREA)
• Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)
• Compositions Of Oxide Ceramics (AREA)
• Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2008
  • 2008-08-08 IT IT000218A patent/ITMO20080218A1/it unknown
• 2009
  • 2009-08-07 WO PCT/IB2009/006489 patent/WO2010015925A2/en active Application Filing
  • 2009-08-07 EP EP09786116A patent/EP2321038A2/de not_active Withdrawn

Non-Patent Citations (1)

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