CN114634365A - Digital cloth pulp decorative rock plate with antibacterial function and production method thereof - Google Patents

Digital cloth pulp decorative rock plate with antibacterial function and production method thereof Download PDF

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CN114634365A
CN114634365A CN202210232687.6A CN202210232687A CN114634365A CN 114634365 A CN114634365 A CN 114634365A CN 202210232687 A CN202210232687 A CN 202210232687A CN 114634365 A CN114634365 A CN 114634365A
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digital
pulp
slurry
rock plate
antibacterial function
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CN114634365B (en
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夏昌奎
谢明锋
余剑峰
李华云
樊叶利
蒋孝云
徐海航
宋云东
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Hangzhou Nabel Ceramic Co ltd
Jiujiang Nabel Ceramic Co ltd
Deqing Nabel Ceramic Co ltd
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Hangzhou Nabel Ceramic Co ltd
Jiujiang Nabel Ceramic Co ltd
Deqing Nabel Ceramic Co ltd
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    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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Abstract

The invention discloses a production method of a digital pulp distribution decorative rock plate with an antibacterial function, which comprises the following steps: A. preparing blank powder by a conventional method; B. preparing slurry for a digital slurry distribution system; C. molding; D. drying the blank; E. digital pulp distribution; F. drying again; G. firing; H. and (5) edging to obtain the digital cloth pulp decorative rock plate with the antibacterial function. The invention can carry out positioning application of the water-based ceramic slurry according to the preset pattern texture, the formed digital spraying decoration effect has obvious concave-convex three-dimensional texture, and the limit that slurry with different compositions and/or colors can only realize linear flow lines in the traditional slurry is broken through by combining the arrangement of the spray head array, so that the texture of the natural stone imitation formed by the digital slurry is clearer, more vivid, three-dimensional and fine, the pattern and line effects are more abundant, the gradual transition effect is good, and the digital slurry has good sterilization and bacteriostasis functions.

Description

Digital cloth pulp decorative rock plate with antibacterial function and production method thereof
Technical Field
The invention relates to a rock plate and a production method thereof, in particular to a digital cloth pulp decorative rock plate with an antibacterial function and a production method thereof.
Background
With the continuous development of social economy, the requirements of people on living quality and living environment are continuously improved, so that the natural stone-imitating, simple and natural decorative material is deeply favored by people.
At present, various process means and materials are utilized to simulate the texture of natural stone in the market, and the method mainly starts from two aspects: on one hand, starting from the pattern formed by printing decoration, the pattern is formed on the glaze layer on the surface of the blank body by ink-jet printing, roller printing, silk-screen printing and other modes, and then a layer of transparent protective glaze is covered on the pattern to realize the decoration. However, the decorative effect obtained by the ink-jet printing method is easy to be similar and easily simulated, and the ink for ink-jet printing and the printing oil for roller printing and screen printing are oily and cannot be used in too large amount, otherwise, the oily pattern is separated from the water-based protective glaze to generate glaze shrinkage, thereby generating defects. On the other hand, the fabric is started from the fabric on the upper layer of the blank body, the fabric can be divided into dry fabric and wet fabric, the dry fabric is generally obtained by stamping the dry fabric, molding the dry fabric by a press, then sintering the dry fabric and polishing the dry fabric, but the surface pattern of the prepared product is rigid and monotonous, the three-dimensional layering sense is not strong and unnatural, and adopt the wet process to carry out the cloth, spray the ceramic slurry on the rock plate body through the cloth pipeline respectively, form imitative natural stone material pattern texture, often can receive the influence of ceramic slurry's colouring material mixing effect, carry out the homogeneous mixing with the thick liquids of different colours usually, the level effect of colour thick liquids is not obvious, it is relatively poor to fuse the mixing degree between the colouring material, it is difficult to control thick liquids and distribute the trend on rock plate body surface, the texture effect that leads to forming imitative natural stone material is clear lifelike enough, three-dimensional fine and smooth, pattern and lines effect are single, the poor problem of transitivity.
CN201310368652.6 discloses a ceramic tile decoration device and a decoration method, wherein the ceramic tile decoration device adopts a glaze mixer to mix decoration slurry with different colors and then spray the mixed slurry on the surface of a green brick through a glaze spraying bell jar, the decoration slurry with different colors and mixing degrees can be adjusted by changing the flow rate of the different decoration slurry, and rich textures can be formed by matching with the speed change of a conveyor belt. Although the method has low cost and convenient modification, the formed patterns are not rich enough, and the flow lines are taken as the main points, so that the control is relatively difficult.
Disclosure of Invention
The invention provides a production method of a digital cloth pulp decorative rock plate with an antibacterial function, which aims to solve the technical problems that the patterns of the existing rock plate product are not natural and rich enough, the textures are not clear and vivid enough, and the pattern control of a glaze pouring process in production is difficult, and endow the rock plate product with a good antibacterial function.
The invention also aims to provide the digital cloth pulp decorative rock plate with the antibacterial function, which is produced by the method.
In order to realize the first invention purpose, the technical scheme adopted by the invention is as follows: a production method of a digital cloth pulp decorative rock plate with an antibacterial function is characterized by comprising the following steps:
A. preparing blank powder by a conventional method for later use;
B. preparing slurry for a digital slurry distribution system: weighing mineral raw materials according to the chemical composition of the designed slurry for the digital slurry distribution system, adding a dispergator, a suspending agent and water in a certain proportion, and carrying out ball milling to prepare the slurry for the digital slurry distribution system; the slurry for the digital slurry distribution system contains 5% -50% of the tea stone;
C. molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. digital pulp distribution: d, adopting a digital pulp distribution system to distribute the pulp for the digital pulp distribution system prepared in the step B on the surface of the digital pulp distribution decorative rock board blank dried in the step D according to a preset texture;
F. and (3) drying again: e, drying the digital pulp distribution decorative rock plate blank subjected to the digital pulp distribution according to a conventional method;
G. and (3) firing: f, placing the digital pulp distribution decorative rock plate blank dried again in the step F into a roller kiln for firing, wherein the firing temperature is 1150-1250 ℃, and the firing period is 60-150 min, so as to obtain a semi-finished product of the digital pulp distribution decorative rock plate with the antibacterial function;
H. edging: and G, edging the semi-finished product of the antibacterial digital cloth pulp decorative rock plate sintered in the step G by using conventional edging processing equipment to obtain the antibacterial digital cloth pulp decorative rock plate finished product.
In the above steps, the conventional control means in the prior art is adopted, unless otherwise specified.
In order to accomplish the second invention, the digital cloth pulp decorative rock plate produced according to the steps is adopted.
And B, enabling the tea-crystal stone to contain multiple rare earth elements under the long-term weathering geological action, enabling the rare earth elements to generate a composite activation effect with conventional oxides in slurry for a digital slurry distribution system, realizing multiband photocatalytic reaction under the conditions of visible light, ultraviolet light and the like, and outwards releasing certain terahertz waves through vibration, coupling, rotation and the like among ions. Terahertz waves are electromagnetic waves between far infrared and microwaves, have strong permeability and radiation force, and are easily absorbed by an object and converted into internal energy of the object. The terahertz wave can generate resonance with water molecules in the object after being absorbed by the object, so that the water molecules are activated, the combination between the water molecules and other molecules is increased, and macromolecules such as protein and the like are activated, so that the highest vibration energy level of biological cells is generated. Due to the resonance effect, heat energy can be transferred to a deeper part under the skin, so that heat generated by temperature rise is emitted outwards, and the capillary vessel expands to promote blood circulation, enhance metabolism and regeneration capacity and improve immunity. Meanwhile, the terahertz waves have good antibacterial capacity, and mainly change the membrane potential and the polar molecular structure of bacteria by a high-frequency electric field, so that proteins and physiologically active substances in microorganisms are mutated and lose vitality or die, and a good antibacterial and bactericidal effect is achieved.
The chemical composition of the tea crystal stone comprises the following components in percentage by weight: SiO 22 75%~78%，Al2O3 12%~14%，CaO 0.5%~2%，MgO 0.01%~0.1%，K2O 4.5%~6%，Na2O 2.5%~5%，Fe2O3 ≤0.1%，TiO2Less than or equal to 0.1 percent and less than or equal to 0.5 percent of loss on ignition. Besides the conventional chemical composition of oxides, the tea spar also contains rare earth elements with abundant varieties. The content of rare earth oxide in the tea spar is calculated by the unit mass: la2O3 55~65mg/kg，CeO2 125~135mg/kg，Pr8O118~15mg/kg，Nd2O3 35~45mg/kg，Sm2O3 3~10mg/kg，Eu2O3 ≤1mg/kg，Gd2O3 3~10mg/kg，Tb4O7 ≤1mg/kg，Dy2O3 2~6mg/kg，Ho2O3 ≤1mg/kg，Er2O3 1~5mg/kg，Tm2O3 ≤1mg/kg，Yb2O3 1~5mg/kg，Lu2O3 ≤1mg/kg，Y2O3 20~30mg/kg。
Further, pigment is added into the slurry for the digital cloth pulp system in the step B to prepare the slurry for the colored digital cloth pulp system.
Further, the specific gravity of the slurry for the digital slurry distribution system in the step B is 1.20-1.85 g/cm3The flow rate of the 50mL flow cup is 10-25 s, the viscosity is 40-500 mPa s, the surface tension is 50-70 mN/m, the Reynolds number is 5-50, the Weber number is 70-130, and the bond number is 0.12-0.25.
Specific gravity, flow rate, viscosity and surface tension are among the conventional physical property parameters, while the reynolds number, weber number and bond number are among dimensionless numbers. Where Reynolds number is a dimensionless number that can be used to characterize fluid flow, denoted Re, and is a measure of the ratio of inertial force to viscous force of a fluid, it can be expressed as follows: re = dv ρ/μ. In the invention, d is the diameter of slurry outlet, namely the diameter of slurry flowing through a pipeline, v is the slurry injection speed, ρ is the specific gravity of the slurry, and μ is the viscosity of the slurry, when the Reynolds number is small, the influence of viscous force on a flow field is greater than the inertia force, the disturbance of the flow velocity in the flow field is attenuated due to the viscous force, the fluid flow is stable and is laminar flow; on the contrary, if the reynolds number is larger, the influence of the inertia force on the flow field is larger than the viscous force, the fluid flow is unstable, the small change of the flow velocity is easy to develop and strengthen, and the turbulent and irregular turbulence is formed.
The Weber number, which represents the ratio of inertial force to surface tension effect, is denoted by We and can be represented by the following equation: we = ρ v2d/gamma. In the invention, rho is the specific gravity of the slurry, v is the spraying speed of the slurry, d is the slurry outlet diameter, namely the diameter of the slurry flowing through a pipeline, gamma is the surface tension of the slurry, and the smaller the Weber number, the more important the surface tension is, such as the problems of small scale as capillary phenomenon, soap bubbles, surface tension waves and the like. In general, the large scale problem, with a Weber number much greater than 1.0, the effect of surface tension is negligible.
The bond number is a dimensionless number determined due to the influence of surface tension, denoted by Bo, and can be represented by the following sub-formula: bo = ρ gd2And/gamma. In the invention, rho is the specific gravity of the slurry, g is the gravity acceleration, d is the slurry outlet diameter, namely the diameter of the slurry flowing through the pipeline, gamma is the surface tension of the slurry, the bond number represents the ratio of the gravity to the surface tension, and when the action of the gravity is smallAt surface tension, surface tension dominates and the liquid is spherical.
It should be noted that the slurry injection speed v involved in the calculation of three dimensionless numbers, i.e., the reynolds number, the weber number and the bond number, is not 10 to 25 seconds of the flow velocity cup flow velocity of 50mL of the slurry for the digital slurry distribution system, and 10 to 25 seconds of the flow velocity cup flow velocity of 50mL of the slurry for the digital slurry distribution system is the time required for the slurry for the digital slurry distribution system to completely flow in the 50mL flow velocity cup under the action of gravity.
The traditional ink jet device adopts organic solvent type ceramic ink or organic solvent type digital glaze, and is characterized in that the granularity of the ceramic ink or the digital glaze needs to be controlled to the fineness that d99 is not more than 0.85 mu m (the granularity of 99% of particles in the cumulative distribution of the granularity is not more than 0.85 mu m), and in order to ensure that the organic solvent type ceramic ink or the organic solvent type digital glaze has good spray printing performance, more liquid dispersing agents, liquid stabilizing agents, liquid suspending agents, solvents and the like need to be introduced, so that the solid content of the organic solvent type ceramic ink or the organic solvent type digital glaze is not more than 50%, and thus, the dimensionless numerical control of the Reynolds number, the Weber number, the Bangdard number and the like of the organic solvent type ceramic ink or the organic solvent type digital glaze is easier to control. The slurry for the digital slurry distribution system is water-based ceramic slurry, the fineness of the slurry is controlled to be about 45 mu m in d99 (the particle size of 99% of particles in the accumulated particle size distribution is not more than 45 mu m), most of the particle size of the slurry is more than 1 mu m, and the solid content of the slurry is not less than 60%, so that compared with organic solvent type ceramic ink or organic solvent type digital glaze, the water-based ceramic slurry has the advantages of coarser particle size, easier sedimentation of the slurry, difficult control of performances such as suspension and moisture retention, and larger control difficulty of dimensionless numbers such as Reynolds number, Weber number and Bunde number related to rheological parameters such as viscosity, surface tension, specific gravity and the like.
According to the knowledge of fluid mechanics, the Reynolds number Re < 2300 is in a laminar state, Re < 2300 < 4000 is in a transition state, and Re > 4000 is in a turbulent state. Obviously, the slurry for the digital slurry distribution system is in a laminar flow state and is limited between 5 and 50, on one hand, the slurry for the digital slurry distribution system is water-based ceramic slurry formed by mixing and grinding minerals such as natural clay, feldspar and quartz and water, basic rheological performance parameters such as specific gravity, viscosity and flow velocity are in a range, and the caliber of emergent slurry provided by a flow limiting mechanism in the digital slurry distribution system is smaller, namely the diameter d of the emergent slurry is smaller, so that the Reynolds number of the slurry for the digital slurry distribution system is in a laminar flow state; on the other hand, although increasing the reynolds number of the slurry for the digital slurry distribution system is beneficial to the flow transmission of the slurry for the digital slurry distribution system in the slurry distribution device, once increasing the reynolds number will significantly affect the printing effect of the slurry on the surface of the blank, as described in the first point, the slurry for the digital slurry distribution system is a water-based ceramic slurry formed by mixing and grinding minerals such as natural clay, feldspar, quartz, etc. with water, therefore, the reynolds number also has an upper limit, if increasing the reynolds number once, the solid content of the slurry needs to be significantly reduced, i.e., the water content of the slurry is increased, while the pattern texture effect on the surface of the blank needs to be achieved by the solid components in the slurry, if excessively pursuing a large reynolds number, the water content of the slurry is too large, so that the solid components attached to the surface of the blank are greatly reduced, it is difficult to achieve the concavo-convex three-dimensional hierarchical texture, and the blank absorbs the water in the slurry to attach the solid components thereto, if too much moisture is absorbed, the green strength of the green body tends to be too low, and defects such as edge chipping, corner chipping, and cracking are likely to occur due to insufficient strength.
The Weber number represents the ratio of the inertia force to the surface tension effect, and the slurry for the digital slurry distribution system needs to flow and transmit smoothly in the slurry distribution device and needs a certain inertia force to prevent the slurry from blocking in a pipeline.
The Bunde number represents the ratio of gravity to surface tension, the concave-convex three-dimensional texture on the surface of the blank is formed by arranging a plurality of small droplets on the surface of the blank according to the requirement of a preset texture, for each small droplet, if the gravity action is greater than the surface tension action, the small droplets are easy to be completely spread on the surface of the blank, the realization of fine texture is not facilitated, similar to pixels on a liquid crystal display screen, the more the pixels are, the clearer the image is, the less the pixels are, one block is formed, the more the image is blurred, if each small droplet is completely spread, the larger the overlapping is inevitable, macroscopically, the pattern formed by digital pulp distribution is blurred, and if the gravity action is less than the surface tension action, the small droplets are approximately spherical and can be combined with the blank at a certain wetting angle on the surface of the blank, so that more positions can be left for the small droplets sprayed on the back, similar to the liquid crystal display screen, the number of pixels is more, the image is clearer, and the pattern formed by the digital cloth pulp is clearer and more stereoscopic when viewed macroscopically, so that the texture layer of the concave-convex stereoscopic structure is more favorably formed. The bond number of the slurry for the digital slurry distribution system is 0.12-0.25, and clear and three-dimensional pattern texture layers can be presented.
And furthermore, a step of applying bottom slurry is added between the step D and the step E, wherein the bottom slurry is prepared by weighing mineral raw materials according to the designed chemical composition of the bottom slurry, and adding a dispergator, a suspending agent and water in a certain proportion for ball milling. The bottom slurry is applied by adopting one of a spray disc and a glaze spraying cabinet.
Furthermore, the digital pulp distribution system of the step E comprises a computer control system and a pulp distribution device; the slurry distribution device comprises a spray head array formed by combining a plurality of spray heads; the sprayer comprises a filtering device, a digital flowmeter, a slurry distribution signal input end, a sprayer cavity, an extrusion device, a cache cavity and a current limiting mechanism; the lower end of the extrusion device is made of a transparent material, and the infrared signal generator is coated in the transparent material; the extrusion device is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller the closer to the lower end; the inner wall of the cache cavity is covered with a layer of hydrophobic film; the cache cavity is of a stepped concave structure, and the diameter of the circular cavity is smaller as the cache cavity is closer to the lower end; through the matching of the extrusion device with the stepped convex structure and the cache cavity with the stepped concave structure, the stepped printing effect with different gray levels can be realized; the flow limiting mechanism comprises a telescopic baffle and a flushing device; the upper end of the telescopic baffle is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver for receiving an infrared signal sent by an infrared signal generator in the lower end of the extrusion device; and a plurality of water outlet holes are distributed at the upper end of the flushing device.
Further, the computer control system is used for controlling the pulp distribution device to distribute pulp according to the preset texture.
Furthermore, the spray head array is a single-mode spray head array formed by single rows of spray heads distributed in parallel at equal intervals, and can be suitable for pattern texture printing which is not particularly complex.
Furthermore, the nozzle array is an embedded mode nozzle array formed by double rows of nozzles distributed equidistantly and in parallel, and is suitable for pattern texture printing with strong layering sense and fine texture.
Furthermore, the nozzle array is an interactive mode nozzle array with nozzles distributed in a crossed manner, and is suitable for pattern texture printing with rich colors, natural transition of colors and textures and gradual change.
Furthermore, the filtering device is a screen mesh, and the mesh number of the screen mesh is 50-600 meshes.
Furthermore, the filtering device is a screen mesh, and the mesh number of the screen mesh is 200-325 meshes.
Compared with the fineness requirement of the traditional ink-jet decoration on the small-particle-size ink with the particle size not larger than 0.85 mu m, the cloth system in the production of the digital cloth pulp decorative rock plate can expand 0.85 mu m to 45 mu m, namely the digital cloth pulp system can be suitable for the large-particle-size pulp with the particle size of 45 mu m. The traditional ink-jet device is generally used for spraying and distributing oily ink, the ink needs to be ground to 0.85 μm, if the traditional ink-jet device is used for spraying and distributing water-based slurry, the water-based slurry needs to be ground to 0.85 μm, and if the digital slurry distribution system is adopted, the slurry only needs to be ground to about 45 μm, so that the power consumption generated by grinding can be obviously reduced, and the power consumption of each ton of slurry can be preliminarily estimated to be reduced from 2000-4000 degrees to 200 degrees.
In addition, if the slurry is ground too finely, other slurry rheology problems can arise. For example, thixotropy is obviously deteriorated, which may be because the temperature of the slurry is rapidly increased although the granularity of the slurry is gradually reduced along with the extension of the grinding time, so that the dispergator is partially failed, and the negative effect on the dispergator failure is more and more strong along with the extension of the grinding time, so that the thixotropy of the slurry is finally deteriorated; in addition, the grinding time is greatly increased, so that the temperature of the slurry is higher, a layer of solid layer is formed on the surface of the slurry due to the rapid evaporation of surface moisture in the standing process of the ground slurry, namely the common 'skinning' defect in the production process, the formed skinning is difficult to be completely broken through the stirring effect in the subsequent use process, solid aggregates are formed, the slurry is not uniform, and the presenting effect of the digital cloth slurry on the surface of the blank body is influenced.
Further, the filter device is honeycomb ceramic.
Furthermore, the digital flowmeter can display the flow rate of the slurry flowing into the spray head in real time and feed the flow rate back to the computer control system, and then the computer control system adjusts the flow rate of the slurry. The slurry flow rate referred to herein is the weight/volume of slurry passing through the meter per unit time. If the flow rate of the slurry is monitored to be too small, the digital flow meter can be adjusted through the computer control system, so that the flow rate of the slurry is properly increased, because the flow rate of the slurry is too small, stable slurry supply to the spray head is influenced, the printing effect is unstable, if the digital flow meter is adjusted, the slurry is possibly viscous or the slurry supply channel is blocked, if the filter device is blocked, because large-particle agglomerates or impurities in the slurry block the meshes of the filter device, the filter device needs to be replaced or cleaned. If the flow velocity of the pulp is monitored to be overlarge, the digital flow meter can be adjusted through the computer control system, so that the flow velocity of the pulp is properly reduced, and the flow velocity of the pulp is overlarge, so that the flow limiting mechanism is easily impacted by the larger pulp, the arc of the pulp ejected from the flow limiting mechanism is unstable, and the printing effect is influenced.
Further, the extrusion device is made of transparent silica gel.
Furthermore, the hydrophobic membrane is mixed with high-hardness substances such as carborundum, so that the friction loss condition between the extrusion device and the inner wall of the cache cavity can be effectively improved, and the service life of the cache cavity is prolonged.
Further, the retractable baffle is in one of a cuboid structure and a semicircular structure.
Further, the flushing device is one of a cuboid structure and a semicircular structure.
Furthermore, the telescopic baffle and the flushing device are both of cuboid structures, and a flow limiting mechanism formed by the telescopic baffle and the flushing device is of a cross structure; the telescopic baffle and the flushing device are both of semicircular structures, and the flow limiting mechanism formed by the telescopic baffle and the flushing device is of a petal-shaped structure.
Furthermore, the opening and closing gap of the telescopic baffle is continuously controlled by 0-100%.
Further, the working process of the digital pulp distribution system is as follows: when the transmission belt on the machine frame bears the rock plate blank and moves to the lower end of the pulp distribution device, the computer control system drives the pulp distribution device to carry out pulp distribution decoration on the surface of the rock plate blank according to the input preset pulp distribution draft, the pulp needs to be filtered by the filtering device before entering the spray head to remove granular aggregates in the pulp, so as to prevent the nozzle from being blocked, then flows through the digital flowmeter, and then enters the nozzle cavity, when the liquid level of the sizing agent in the nozzle cavity is higher than the inlet of the cache cavity, namely, the slurry flows into the buffer cavity, then the slurry distribution signal input end receives a digital signal from a computer control system to drive the extruding device to work, the extruding device extends out a corresponding bulge part according to the slurry required by the preset gray level ladder to extrude the slurry out of the current limiting mechanism, the telescopic baffle plate of the current limiting mechanism is also controlled by the computer control system, controlling the thickness and the shape of lines printed on the surface of the rock plate blank by the slurry through adjusting the opening and closing gaps; when the infrared signal generator at the lower end of the extrusion device and the infrared signal receiver at the upper end of the telescopic baffle plate monitor that the spray head is blocked, the spray head stops working immediately and enters a cleaning state, at the moment, the telescopic baffle plate is completely stretched out, the flushing device is closed and is flushed by water outlet holes at the upper end of the flushing device, until the infrared signal generator at the lower end of the extrusion device and the infrared signal receiver at the upper end of the telescopic baffle plate monitor the dredging state, the flushing device is completely stretched out, the telescopic baffle plate is closed again, and the spray head enters the working state again.
Further, a step of applying a protective glaze is added between the step E and the step F.
Further, after the step H, a polishing process is used.
The invention has the beneficial effects that: on one hand, the traditional spraying disc type pulp distribution covers the whole surface of the blank body in a superposed mode, and the decoration of the surface of the blank body is only limited to pure-color pulp after the coloring material is added, but the digital pulp distribution system in the production of the digital pulp distribution decorative rock board with the antibacterial function inputs digital patterns through the computer control system and drives the pulp distribution device to carry out pulp distribution decoration, and the digital patterns can be positioned and distributed according to the required patterns, if the pulp distribution pattern effect of the surface of the blank body needs to be changed, only the digital patterns in the computer control system need to be changed, so that the positioning distribution can be realized, and the flexibility is better; on the other hand, compared with the slurry spraying type slurry distribution, the traditional slurry distribution texture formed by spraying a plurality of slurry distribution pipelines is improved to a certain extent, a plurality of slurries with compositions and/or colors can be simultaneously distributed on the surface of a blank, but only the textures of different compositions and/or slurries in a mode of adjacent interval can be realized, namely only linear flow textures can be presented, the decoration effect is single, the layering effect of the color slurries is not obvious, the blending degree of pigments is poor, the distribution trend of the slurries on the surface of the blank of the rock board is difficult to control, the texture effect of the formed natural stone imitation is not clear, vivid, three-dimensional and fine, the pattern and line effects are single, and the transitional property is poor, but the digital slurry distribution system in the production of the digital slurry distribution decorative rock board with the antibacterial function inputs the pattern through the computer control system and drives the slurry distribution device to carry out slurry distribution decoration, the digital guniting decoration effect formed by the invention has obvious concave-convex three-dimensional texture, and can break through the limitation that in the traditional guniting, the linear flow grains can be realized only by different compositions and/or colors in the traditional guniting, the lines of the guniting can be randomly arranged, and the matching of a plurality of nozzle arrays ensures that the textures of the natural stone imitation formed by the guniting are clearer, three-dimensional and more delicate, the patterns and the lines are richer, and the transition effect is good gradually. Meanwhile, because the slurry for the digital slurry distribution system is introduced with the tawny spar, the digital slurry distribution decorative rock plate produced by the invention also has good sterilization and bacteriostasis functions.
Drawings
FIG. 1 is a schematic view of a slurry distribution apparatus distributing slurry to a rock plate blank;
wherein, the device comprises 1-a frame, 2-a transmission belt, 3-a rock plate blank, 4-a slurry distribution device and 4-1-a spray head.
FIG. 2 is a schematic top view of a slurry distribution device for distributing slurry to a rock plate blank;
wherein, fig. 2a is a schematic plan view of a rock plate blank slurry distribution device employing a single mode nozzle array to distribute slurry to the rock plate blank in a direction perpendicular to the advancing direction of the conveyor belt; FIG. 2b is a schematic top view of a slurry distribution device employing an array of spray heads in a mosaic pattern for distributing slurry to a rock plate blank perpendicular to the direction of travel of the conveyor belt; FIG. 2c is a schematic top view of a slurry distribution apparatus employing an alternating pattern nozzle array for distributing slurry to a rock plate blank, perpendicular to the direction of travel of the conveyor belt; the arrow direction is the advancing direction of the conveying belt; 2-transmission belt, 3-rock plate blank, 4-slurry distribution device, 4-1-spray head.
FIG. 3 is a schematic view of a spray head structure in the slurry distribution device;
the device comprises a filter device 5, a digital flowmeter 6, a nozzle cavity 7, a slurry distribution signal input end 8, an extrusion device 9, an infrared signal transmitter 10, a buffer cavity 11, a hydrophobic membrane 12, a telescopic baffle 13, an infrared signal receiver 14, and slurry enters the nozzle in the direction of an arrow.
FIG. 4 is a schematic view of the fully extended state of the compression device in the cache chamber;
wherein, 9-extrusion device, 11-buffer cavity, 13-current-limiting mechanism.
FIG. 5 is a schematic diagram of an extrusion device and a buffer chamber in a spraying operation state with a certain gray scale;
wherein, 9-extrusion device, 11-buffer cavity, 13-flow-limiting mechanism.
FIG. 6 is a schematic view of a press apparatus; wherein, 9-extrusion device.
FIG. 7 is a schematic top view of a cache chamber; among them, 11-cache cavity.
FIG. 8 is a schematic view of the cross-shaped configuration of the flow restriction mechanism; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.
FIG. 9 is a schematic view of a cross-shaped configuration of a flow restriction mechanism in a purge state; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.
FIG. 10 is a schematic view of the operating condition of the flow restriction mechanism in a petal configuration; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.
FIG. 11 is a schematic view of a petal-type configuration of the flow restriction mechanism in a purge state; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.
Detailed Description
Example 1
As shown in fig. 1-11, the present invention is implemented by the following steps:
A. preparing blank powder by a conventional method for later use;
B. preparing slurry for a digital slurry distribution system: weighing mineral raw materials according to the chemical composition of the designed slurry for the digital slurry distribution system, adding a dispergator, a suspending agent and water in a certain proportion, and carrying out ball milling to prepare the slurry for the digital slurry distribution system, wherein the slurry for the digital slurry distribution system contains 5% of the tea spar; the specific gravity of the slurry for the digital slurry distribution system is 1.20g/cm3The flow rate of the 50mL flow cup was 10s, the viscosity was 40 mPas, the surface tension was 50mN/m, and the Reynolds number was48, Weber number 76.9, and bond number 0.15;
C. molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: c, drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. digital pulp distribution: d, adopting a digital pulp distribution system to distribute the pulp for the digital pulp distribution system prepared in the step B on the surface of the digital pulp distribution decorative rock board blank dried in the step D according to preset textures;
the digital pulp distribution system comprises a computer control system and a pulp distribution device 4; the pulp distribution device 4 comprises a spray head array formed by combining a plurality of spray heads; the spray head array is a single-mode spray head array formed by single rows of spray heads distributed in parallel at equal intervals; the spray head 4-1 comprises a filtering device 5, a digital flow meter 6, a slurry distribution signal input end 8, a spray head cavity 7, an extrusion device 9, a cache cavity 11 and a flow limiting mechanism 13; the lower end of the extrusion device 9 is made of a transparent material, and an infrared signal transmitter 10 is coated in the transparent material; the extrusion device 9 is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller as the lower end is closer; the inner wall of the cache cavity 11 is covered with a layer of hydrophobic film 12; the cache cavity 11 is of a stepped concave structure, and the closer to the lower end, the smaller the diameter of the circular cavity is; through the matching of the extrusion device 9 with the stepped convex structure and the cache cavity 11 with the stepped concave structure, the stepped printing effect with different gray levels can be realized; the flow limiting mechanism 13 comprises a telescopic baffle 15 and a flushing device 16; the upper end of the telescopic baffle 15 is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver 14 for receiving an infrared signal sent by an infrared signal transmitter 10 in the lower end of the extrusion device 9; a plurality of water outlet holes are distributed at the upper end of the washing device 16; the telescopic baffle 15 and the flushing device 16 are both of cuboid structures; the filtering device 5 is a screen mesh with the mesh number of 50 meshes;
the working process of the digital pulp distribution system is as follows: when a transmission belt 2 on a rack 1 bears a rock plate blank 3 and moves to the lower end of a pulp distribution device 4, a computer control system drives the pulp distribution device 4 to distribute pulp on the surface of the rock plate blank 3 according to an input preset pulp distribution draft, pulp is required to be filtered by a filter device 5 before entering a spray head 4-1 to remove granular aggregates in the pulp so as to prevent the spray head 4-1 from being blocked, then the pulp flows through a digital flow meter 6 and then enters a spray head cavity 7, when the liquid level of the pulp in the spray head cavity 7 is higher than the inlet of a cache cavity 11, the pulp flows into the cache cavity 11, then a pulp distribution signal input end 8 receives a digital signal from the computer control system to drive an extruding device 9 to work, the extruding device 9 expands corresponding convex parts according to the pulp required by a preset gray level step to extrude the pulp out of a mechanism 13, a telescopic baffle 15 of the flow limiting mechanism 13 is also controlled by the computer control system, the thickness and shape control of the lines printed on the surface of the rock plate blank 3 by the slurry is realized through the adjustment of the opening and closing gaps; when the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor that the spray head 4-1 is blocked, the spray head 4-1 stops working and enters a cleaning state, at the moment, the telescopic baffle 15 is completely extended, the flushing device 16 is closed, and water outlet flushing is carried out by a water outlet hole at the upper end of the flushing device 16 until the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor a dredging state, the flushing device 16 is completely extended, the telescopic baffle 15 is closed again and enters a working state again;
F. and (3) drying again: e, drying the digital pulp distribution decorative rock plate blank subjected to the digital pulp distribution according to a conventional method;
G. and (3) firing: f, placing the digital slurry distribution decorative rock plate blank dried again in the step F into a roller kiln to be sintered, wherein the sintering temperature is 1150 ℃, and the sintering period is 150min, so as to obtain a semi-finished product of the digital slurry distribution decorative rock plate with the antibacterial function;
H. edging: and G, edging the semi-finished product of the digital cloth pulp decorative rock plate sintered in the step G by using conventional edging processing equipment to obtain a finished product of the digital cloth pulp decorative rock plate with an antibacterial function.
Example 2
As shown in fig. 1-11, the present invention is implemented by the following steps:
A. preparing blank powder by a conventional method for later use;
B. preparing slurry for a digital slurry distribution system: weighing mineral raw materials according to a designed chemical composition, adding a dispergator, a suspending agent and a pigment in a certain proportion, and performing ball milling with water to prepare a slurry for a colored digital slurry distribution system, wherein the slurry for the digital slurry distribution system contains 50% of theophyllite; the specific gravity of the slurry for the digital slurry distribution system is 1.85g/cm3The flow rate of the 50mL flow cup was 25s, the viscosity was 500 mPas, the surface tension was 60mN/m, the Reynolds number was 5.9, the Weber number was 98.9, and the bond number was 0.19.
C. Molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. applying primer slurry: d, coating the bottom slurry on the surface of the digital slurry-coated decorative rock board blank dried in the step D by using a spray disc, wherein the bottom slurry is prepared by weighing mineral raw materials according to the designed chemical composition of the bottom slurry, adding a debonding agent and a suspending agent in a certain proportion and performing ball milling on water;
F. digital pulp distribution: b, applying the slurry for the digital slurry distribution system prepared in the step B to the surface of the digital slurry distribution decorative rock board blank body after the bottom slurry is applied in the step E by adopting a digital slurry distribution system according to a preset texture;
the digital pulp distribution system comprises a computer control system and a pulp distribution device 4; the slurry distribution device 4 comprises a spray head array formed by combining a plurality of spray heads; the spray head array is an embedded mode spray head array formed by double rows of spray heads which are distributed equidistantly and in parallel; the spray head 4-1 comprises a filtering device 5, a digital flow meter 6, a slurry distribution signal input end 8, a spray head cavity 7, an extrusion device 9, a cache cavity 11 and a flow limiting mechanism 13; the lower end of the extrusion device 9 is made of a transparent material, and an infrared signal transmitter 10 is coated in the transparent material; the extrusion device 9 is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller as the lower end is closer; the inner wall of the cache cavity 11 is covered with a layer of hydrophobic film 12; the cache cavity 11 is of a stepped concave structure, and the diameter of the circular cavity is smaller as the cache cavity is closer to the lower end; through the matching of the extrusion device 9 with the stepped convex structure and the cache cavity 11 with the stepped concave structure, the stepped printing effect with different gray levels can be realized; the flow limiting mechanism 13 comprises a telescopic baffle 15 and a flushing device 16; the upper end of the telescopic baffle 15 is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver 14 for receiving an infrared signal sent by an infrared signal transmitter 10 in the lower end of the extrusion device 9; a plurality of water outlet holes are distributed at the upper end of the washing device 16; the telescopic baffle 15 and the flushing device 16 are both of semicircular structures; the filtering device 5 is a screen mesh with the mesh number of 600 meshes;
the working process of the digital pulp distribution system is as follows: when a transmission belt 2 on a frame 1 bears a rock plate blank 3 and moves to the lower end of a pulp distribution device 4, a computer control system drives the pulp distribution device 4 to distribute pulp on the surface of the rock plate blank 3 according to an input preset pulp distribution draft, pulp is required to be filtered by a filtering device 5 before entering a spray head 4-1 to remove granular aggregates in the pulp so as to prevent the spray head 4-1 from being blocked, then the pulp flows through a digital flow meter 6 and then enters a spray head cavity 7, when the liquid level of the pulp in the spray head cavity 7 is higher than the inlet of a cache cavity 11, the pulp flows into the cache cavity 11, then a pulp distribution signal input end 8 receives a digital signal from the computer control system to drive an extruding device 9 to work, the extruding device 9 expands corresponding convex parts according to the pulp required by a preset gray level ladder to extrude the pulp out of a mechanism 13, and a telescopic baffle 15 of a flow limiting mechanism 13 is also controlled by the computer control system, the thickness and shape control of the lines printed on the surface of the rock plate blank 3 by the slurry is realized through the adjustment of the opening and closing gaps; when the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor that the spray head 4-1 is blocked, the spray head 4-1 stops working and enters a cleaning state, at the moment, the telescopic baffle 15 is completely extended, the flushing device 16 is closed, and water outlet flushing is carried out by a water outlet hole at the upper end of the flushing device 16 until the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor a dredging state, the flushing device 16 is completely extended, the telescopic baffle 15 is closed again and enters a working state again;
G. and (3) drying again: drying the digital pulp distribution decorative rock plate blank subjected to the digital pulp distribution in the step F again according to a conventional method;
H. and (3) firing: d, placing the digital pulp distribution decorative rock plate blank dried again in the step G in a roller kiln to be fired, wherein the firing temperature is 1250 ℃, and the firing period is 60min, so as to obtain a semi-finished product of the digital pulp distribution decorative rock plate with the antibacterial function;
I. edging and polishing: and D, utilizing conventional edging and polishing processing equipment to carry out edging and polishing treatment on the semi-finished product of the digital cloth slurry decorative rock plate sintered in the step H to obtain the finished product of the digital cloth slurry decorative rock plate with the antibacterial function.
Example 3
As shown in fig. 1-11, the present invention is implemented by the following steps:
A. preparing blank powder by a conventional method for later use;
B. preparing slurry for a digital slurry distribution system: weighing mineral raw materials according to the chemical composition of the designed slurry for the digital slurry distribution system, adding a dispergator, a suspending agent and a pigment in a certain proportion, and performing ball milling with water to prepare the slurry for the colored digital slurry distribution system, wherein the slurry for the digital slurry distribution system contains 30% of the tea spar; the specific gravity of the slurry for the digital slurry distribution system is 1.55g/cm3The flow rate of the 50mL flow cup was 20s, the viscosity was 135 mPas, the surface tension was 70mN/m, the Reynolds number was 18.4, the Weber number was 71, and the bond number was 0.14.
C. Molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. applying primer slurry: d, coating the bottom slurry on the surface of the digital slurry coating decorative rock board blank dried in the step D by using a glaze spraying cabinet, wherein the bottom slurry is prepared by weighing mineral raw materials according to the designed chemical composition of the bottom slurry, adding a debonding agent and a suspending agent in a certain proportion and performing ball milling on water;
F. digital pulp distribution: b, applying the slurry for the digital slurry distribution system prepared in the step B to the surface of the digital slurry distribution decorative rock board blank body after the bottom slurry is applied in the step E by adopting a digital slurry distribution system according to a preset texture;
the digital pulp distribution system comprises a computer control system and a pulp distribution device 4; the slurry distribution device 4 comprises a spray head array formed by combining a plurality of spray heads; the spray head array is an interactive mode spray head array with spray heads distributed in a crossed manner; the spray head 4-1 comprises a filtering device 5, a digital flow meter 6, a slurry distribution signal input end 8, a spray head cavity 7, an extrusion device 9, a cache cavity 11 and a flow limiting mechanism 13; the lower end of the extrusion device 9 is made of a transparent material, and an infrared signal transmitter 10 is coated in the transparent material; the extrusion device 9 is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller as the lower end is closer; the inner wall of the cache cavity 11 is covered with a layer of hydrophobic film 12; the cache cavity 11 is of a stepped concave structure, and the diameter of the circular cavity is smaller as the cache cavity is closer to the lower end; through the matching of the extrusion device 9 with the stepped convex structure and the cache cavity 11 with the stepped concave structure, the stepped printing effect with different gray levels can be realized; the flow limiting mechanism 13 comprises a telescopic baffle 15 and a flushing device 16; the upper end of the telescopic baffle 15 is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver 14 for receiving an infrared signal sent by an infrared signal transmitter 10 in the lower end of the extrusion device 9; a plurality of water outlet holes are distributed at the upper end of the washing device 16; the telescopic baffle 15 and the flushing device 16 are both of cuboid structures; the filtering device 5 is a screen mesh with the mesh number of 200 meshes;
the working process of the digital pulp distribution system is as follows: when a transmission belt 2 on a frame 1 bears a rock plate blank 3 and moves to the lower end of a pulp distribution device 4, a computer control system drives the pulp distribution device 4 to distribute pulp on the surface of the rock plate blank 3 according to an input preset pulp distribution draft, pulp is required to be filtered by a filtering device 5 before entering a spray head 4-1 to remove granular aggregates in the pulp so as to prevent the spray head 4-1 from being blocked, then the pulp flows through a digital flow meter 6 and then enters a spray head cavity 7, when the liquid level of the pulp in the spray head cavity 7 is higher than the inlet of a cache cavity 11, the pulp flows into the cache cavity 11, then a pulp distribution signal input end 8 receives a digital signal from the computer control system to drive an extruding device 9 to work, the extruding device 9 expands corresponding convex parts according to the pulp required by a preset gray level ladder to extrude the pulp out of a mechanism 13, and a telescopic baffle 15 of a flow limiting mechanism 13 is also controlled by the computer control system, the thickness and shape control of the lines printed on the surface of the rock plate blank 3 by the slurry is realized through the adjustment of the opening and closing gaps; when the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor that the spray head 4-1 is blocked, the spray head 4-1 stops working and enters a cleaning state, at the moment, the telescopic baffle 15 is completely extended, the flushing device 16 is closed, and water outlet flushing is carried out by a water outlet hole at the upper end of the flushing device 16 until the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor a dredging state, the flushing device 16 is completely extended, the telescopic baffle 15 is closed again and enters a working state again;
G. applying a protective glaze: c, applying protective glaze to the surface of the digital slurry distribution decorative rock slab blank after the digital slurry distribution in the step F by adopting a glaze spraying cabinet;
H. and (3) drying again: drying the digital slurry distribution decorative rock plate blank body subjected to the protective glaze distribution in the step G again according to a conventional method;
I. and (3) firing: placing the digital slurry distribution decorative rock plate blank dried again in the step H into a roller kiln to be sintered, wherein the sintering temperature is 1200 ℃, and the sintering period is 110min, so as to obtain a semi-finished product of the digital slurry distribution decorative rock plate with the antibacterial function;
J. edging: and (3) edging the semi-finished product of the digital cloth slurry decorative rock plate sintered in the step (I) by using conventional edging and polishing processing equipment to obtain the finished product of the digital cloth slurry decorative rock plate with the antibacterial function.
Example 4
As shown in fig. 1-11, the present invention is implemented by the following steps:
A. preparing blank powder by a conventional method for later use;
B. slurry preparation for digital slurry distribution systemPreparing: weighing mineral raw materials according to the chemical composition of the designed slurry for the digital slurry distribution system, adding a dispergator, a suspending agent and a pigment in a certain proportion, and performing ball milling with water to prepare the slurry for the colored digital slurry distribution system, wherein the slurry for the digital slurry distribution system contains 40% of theophyllite; the specific gravity of the slurry for the digital slurry distribution system is 1.70g/cm3The flow rate of the 50mL flow cup was 20s, the viscosity was 110 mPas, the surface tension was 64mN/m, the Reynolds number was 24.8, the Weber number was 85.2, and the bond number was 0.17.
C. Molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: c, drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. digital pulp distribution: d, adopting a digital pulp distribution system to distribute the pulp for the digital pulp distribution system prepared in the step B on the surface of the digital pulp distribution decorative rock board blank dried in the step D according to a preset texture;
the digital pulp distribution system comprises a computer control system and a pulp distribution device 4; the slurry distribution device 4 comprises a spray head array formed by combining a plurality of spray heads; the spray head array is a single-mode spray head array formed by single rows of spray heads distributed in parallel at equal intervals; the spray head 4-1 comprises a filtering device 5, a digital flow meter 6, a slurry distribution signal input end 8, a spray head cavity 7, an extrusion device 9, a cache cavity 11 and a flow limiting mechanism 13; the lower end of the extrusion device 9 is made of a transparent material, and an infrared signal transmitter 10 is coated in the transparent material; the extrusion device 9 is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller as the lower end is closer to the lower end; the inner wall of the cache cavity 11 is covered with a layer of hydrophobic film 12; the cache cavity 11 is of a stepped concave structure, and the diameter of the circular cavity is smaller as the cache cavity is closer to the lower end; through the matching of the extrusion device 9 with the stepped convex structure and the cache cavity 11 with the stepped concave structure, the stepped printing effect with different gray levels can be realized; the flow limiting mechanism 13 comprises a telescopic baffle 15 and a flushing device 16; the upper end of the telescopic baffle 15 is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver 14 for receiving an infrared signal sent by an infrared signal transmitter 10 in the lower end of the extrusion device 9; a plurality of water outlet holes are distributed at the upper end of the washing device 16; the telescopic baffle 15 and the flushing device 16 are both of semicircular structures; the filtering device 5 is made of honeycomb ceramics;
the working process of the digital pulp distribution system is as follows: when a transmission belt 2 on a frame 1 bears a rock plate blank 3 and moves to the lower end of a pulp distribution device 4, a computer control system drives the pulp distribution device 4 to distribute pulp on the surface of the rock plate blank 3 according to an input preset pulp distribution draft, pulp is required to be filtered by a filtering device 5 before entering a spray head 4-1 to remove granular aggregates in the pulp so as to prevent the spray head 4-1 from being blocked, then the pulp flows through a digital flow meter 6 and then enters a spray head cavity 7, when the liquid level of the pulp in the spray head cavity 7 is higher than the inlet of a cache cavity 11, the pulp flows into the cache cavity 11, then a pulp distribution signal input end 8 receives a digital signal from the computer control system to drive an extruding device 9 to work, the extruding device 9 expands corresponding convex parts according to the pulp required by a preset gray level ladder to extrude the pulp out of a mechanism 13, and a telescopic baffle 15 of a flow limiting mechanism 13 is also controlled by the computer control system, the thickness and shape control of the lines printed on the surface of the rock plate blank 3 by the slurry is realized through the adjustment of the opening and closing gaps; when the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor that the spray head 4-1 is blocked, the spray head 4-1 stops working and enters a cleaning state, at the moment, the telescopic baffle 15 is completely extended, the flushing device 16 is closed, and water outlet flushing is carried out by a water outlet hole at the upper end of the flushing device 16 until the infrared signal transmitter 10 at the lower end of the extrusion device 9 and the infrared signal receiver 14 at the upper end of the telescopic baffle 15 monitor a dredging state, the flushing device 16 is completely extended, the telescopic baffle 15 is closed again and enters a working state again;
F. applying a protective glaze: e, coating protective glaze on the surface of the digital slurry distribution decorative rock slab blank after the digital slurry distribution in the step E by adopting a shower tray;
G. and (3) drying again: d, drying the digital pulp distribution decorative rock plate blank body subjected to the protective glaze distribution in the step F again according to a conventional method;
H. and (3) firing: d, placing the digital pulp distribution decorative rock plate blank dried again in the step G into a roller kiln to be fired, wherein the firing temperature is 1210 ℃, and the firing period is 90min, so as to obtain a semi-finished product of the digital pulp distribution decorative rock plate with the antibacterial function;
I. edging and polishing: and D, utilizing conventional edging and polishing processing equipment to carry out edging and polishing treatment on the semi-finished product of the digital cloth slurry decorative rock plate sintered in the step H, so as to obtain the finished product of the digital cloth slurry decorative rock plate with the antibacterial function.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those of ordinary skill in the art. Modifications to the embodiments of the invention or equivalent substitutions of parts of the technical features can be made without departing from the spirit of the technical solution of the invention, which is to be covered by the technical solution of the invention.

Claims (25)

1. A production method of a digital cloth pulp decorative rock plate with an antibacterial function is characterized by comprising the following steps:
A. preparing blank powder by a conventional method for later use;
B. preparing slurry for a digital slurry distribution system: weighing mineral raw materials according to the chemical composition of the designed slurry for the digital slurry distribution system, adding a dispergator, a suspending agent and water in a certain proportion, and carrying out ball milling to prepare the slurry for the digital slurry distribution system; the slurry for the digital slurry distribution system contains 5% -50% of the tea stone;
C. molding: b, pressing and molding the blank powder prepared in the step A to form a digital slurry distribution decorative rock plate blank;
D. drying the blank: drying the digital pulp distribution decorative rock plate blank formed in the step C according to a conventional method;
E. digital pulp distribution: d, adopting a digital pulp distribution system to distribute the pulp for the digital pulp distribution system prepared in the step B on the surface of the digital pulp distribution decorative rock board blank dried in the step D according to a preset texture;
F. and (3) drying again: e, drying the digital pulp distribution decorative rock plate blank body subjected to the digital pulp distribution according to a conventional method;
G. and (3) firing: f, placing the digital pulp distribution decorative rock plate blank dried again in the step F into a roller kiln for firing, wherein the firing temperature is 1150-1250 ℃, and the firing period is 60-150 min, so as to obtain a semi-finished product of the digital pulp distribution decorative rock plate with the antibacterial function;
H. edging: and G, edging the semi-finished product of the antibacterial digital cloth pulp decorative rock plate sintered in the step G by using conventional edging processing equipment to obtain the antibacterial digital cloth pulp decorative rock plate finished product.
2. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 1, wherein pigment is added into the slurry for digital cloth pulp system in step B to prepare slurry for colored digital cloth pulp system.
3. The method for producing the digital cloth pulp decorative rock plate with the antibacterial function as claimed in claim 1, wherein the specific gravity of the pulp for the digital cloth pulp system in the step B is 1.20-1.85 g/cm3The flow rate of the 50mL flow cup is 10 to 25s, the viscosity is 40 to 500 mPas, and the surface tension is 50 to 70 mN/m.
4. The method for producing the digital cloth pulp decorative rock plate with the antibacterial function as claimed in claim 1, wherein Reynolds number of the pulp for the digital cloth pulp system in the step B is 5-50, Weber number is 70-130, and Bunde number is 0.12-0.25.
5. The method for producing a digital cloth-pulp decorated rock plate with antibacterial function as claimed in claim 1, wherein a step of applying prime pulp is added between the step D and the step E.
6. The method for producing a digital cloth-decorated rock plate with antibacterial function as claimed in claim 5, wherein said primer is applied by one of a shower tray and a glaze spraying cabinet.
7. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 1, wherein the digital cloth pulp system of step E comprises a computer control system and a cloth pulp device; the pulp distribution device comprises a spray head array formed by combining a plurality of spray heads; the sprayer comprises a filtering device, a digital flowmeter, a slurry distribution signal input end, a sprayer cavity, an extrusion device, a cache cavity and a current limiting mechanism; the lower end of the extrusion device is made of a transparent material, and the infrared signal generator is coated in the transparent material; the extrusion device is of a stepped convex structure, each step is telescopic and movable, and the diameter of the bottom surface of the cylindrical protrusion is smaller the closer to the lower end; the inner wall of the cache cavity is covered with a layer of hydrophobic film; the cache cavity is of a stepped concave structure, and the diameter of the circular cavity is smaller as the cache cavity is closer to the lower end; the stepped printing effect with different gray scales is realized through the matching of the extrusion device with the stepped convex structure and the cache cavity with the stepped concave structure; the flow limiting mechanism comprises a telescopic baffle and a flushing device; the upper end of the telescopic baffle is made of transparent silica gel, and the transparent silica gel is coated with an infrared signal receiver for receiving an infrared signal sent by an infrared signal generator in the lower end of the extrusion device; and a plurality of water outlet holes are distributed at the upper end of the flushing device.
8. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein the computer control system is used for controlling the cloth pulp device to cloth pulp according to the predetermined texture.
9. The method for producing a digital cloth-pulp decorated rock plate with an antibacterial function as claimed in claim 7, wherein the nozzle array is a single-mode nozzle array formed by single rows of nozzles distributed in parallel at equal intervals.
10. The method for producing a digital cloth pulp decorated rock plate with antibacterial function as claimed in claim 7, wherein said nozzle array is a mosaic mode nozzle array formed by two rows of nozzles distributed in parallel at equal distances.
11. The method for producing a digital cloth pulp decorated rock plate with antibacterial function as claimed in claim 7, wherein said nozzle array is an alternating pattern nozzle array with nozzles distributed crosswise.
12. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein said filtering means is a screen.
13. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 12, wherein the mesh number of the screen is 50-600 meshes.
14. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 13, wherein the mesh number of the screen is 200-325 mesh.
15. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein the filtering device is honeycomb ceramic.
16. The method for producing a digital cloth-pulp decorated rock plate with antibacterial function as claimed in claim 7, wherein the digital flow meter displays the flow rate of the pulp flowing into the nozzle in real time and feeds back to the computer control system, and the computer control system adjusts the flow rate of the pulp.
17. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein the extrusion device is made of transparent silica gel.
18. The method for producing a digital cloth-pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein the hydrophobic film is mixed with high hardness substance such as diamond sand.
19. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 7, wherein the retractable baffle and the flushing device are both one of a rectangular structure and a semicircular structure.
20. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 19, wherein when the retractable baffle and the flushing device are both rectangular structures, the formed flow restriction mechanism is a cross structure; when the telescopic baffle and the flushing device are both of semicircular structures, the formed flow limiting mechanism is of a petal-shaped structure.
21. The method for producing a digital cloth-pulp decorated rock plate with antibacterial function as claimed in claim 7, wherein the opening and closing gap of the retractable baffle is continuously controlled from 0% to 100%.
22. The method for producing a digital pulp distribution decorative rock plate with an antibacterial function as claimed in claim 7, wherein the digital pulp distribution system works as follows: when the transmission belt on the machine frame bears the rock plate blank and moves to the lower end of the pulp distribution device, the computer control system drives the pulp distribution device to carry out pulp distribution decoration on the surface of the rock plate blank according to the input preset pulp distribution draft, the pulp needs to be filtered by the filtering device before entering the spray head to remove granular aggregates in the pulp, so as to prevent the nozzle from being blocked, then flows through the digital flowmeter, and then enters the nozzle cavity, when the liquid level of the slurry in the nozzle cavity is higher than the inlet of the cache cavity, namely, the slurry flows into the buffer cavity, then the slurry distribution signal input end receives a digital signal from a computer control system to drive the extruding device to work, the extruding device extends out a corresponding bulge part according to the slurry required by the preset gray level ladder to extrude the slurry out of the current limiting mechanism, the telescopic baffle plate of the current limiting mechanism is also controlled by the computer control system, controlling the thickness and the shape of lines printed on the surface of the rock plate blank by the slurry through adjusting the opening and closing gaps; when the infrared signal generator at the lower end of the extrusion device and the infrared signal receiver at the upper end of the telescopic baffle plate monitor that the spray head is blocked, the spray head stops working immediately and enters a cleaning state, at the moment, the telescopic baffle plate is completely stretched out, the flushing device is closed and is flushed by water outlet holes at the upper end of the flushing device, until the infrared signal generator at the lower end of the extrusion device and the infrared signal receiver at the upper end of the telescopic baffle plate monitor the dredging state, the flushing device is completely stretched out, the telescopic baffle plate is closed again, and the spray head enters the working state again.
23. The method for producing a digital cloth-pulp decorated rock plate with antibacterial function as claimed in claim 1, wherein the step of applying protective glaze is added between the step E and the step F.
24. The method for producing a digital cloth pulp decorative rock plate with antibacterial function as claimed in claim 1, characterized in that, after said step H, a polishing process is used.
25. The digital cloth pulp decorative rock plate with the antibacterial function produced by the production method of the digital cloth pulp decorative rock plate with the antibacterial function as claimed in any one of claims 1 to 24.
CN202210232687.6A 2022-03-09 2022-03-09 Digital cloth pulp decorative rock plate with antibacterial function and production method thereof Active CN114634365B (en)

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CN106187323A (en) * 2015-05-04 2016-12-07 杭州诺贝尔陶瓷有限公司 A kind of Imitation Rock Porcelain Tiles with three-dimensional decorative effect and production method thereof
CN109126334A (en) * 2018-09-11 2019-01-04 邯郸开发区华骐环保科技有限公司 For reducing the track sprinkling truck of haze pollution in factory
CN112646416A (en) * 2020-11-10 2021-04-13 佛山市三晶石陶瓷釉料有限公司 Ceramic digital glaze ink with sterilization and far infrared composite functions and preparation method thereof
CN112723742A (en) * 2021-04-01 2021-04-30 蒙娜丽莎集团股份有限公司 Antibacterial ceramic tile and preparation method thereof
US20210198150A1 (en) * 2019-04-08 2021-07-01 Dongguan City Wonderful Ceramics Industrial Park Co., Ltd. Silky, fine-grained matte ceramic tile and preparation method thereof
CN114105620A (en) * 2021-12-24 2022-03-01 杭州诺贝尔陶瓷有限公司 Porcelain tile with whole stone texture and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362315A (en) * 2007-08-09 2009-02-11 江苏金润科技发展有限公司 Nozzle apparatus for jet cutting by abrasive water
CN106187323A (en) * 2015-05-04 2016-12-07 杭州诺贝尔陶瓷有限公司 A kind of Imitation Rock Porcelain Tiles with three-dimensional decorative effect and production method thereof
CN105461358A (en) * 2015-11-19 2016-04-06 杭州诺贝尔陶瓷有限公司 A stone-imitating porcelain tile with three-dimensional decoration effects and a producing method thereof
CN109126334A (en) * 2018-09-11 2019-01-04 邯郸开发区华骐环保科技有限公司 For reducing the track sprinkling truck of haze pollution in factory
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