CN114474328A - Pulp distribution system and pulp distribution process in preparation of digital pulp distribution decorative rock plate - Google Patents

Abstract

The invention discloses a pulp distribution system and a pulp distribution process in the preparation of a digital pulp distribution decorative rock plate. Digital figure is input through a computer control system, and the drive cloth thick liquid device is decorated with cloth thick liquid, can fix a position according to predetermined pattern texture and apply cloth, the design is printed to the cascaded printing of grey scale through the shower nozzle, and current-limiting mechanism is to the control of going out thick liquid thickness, can perfectly realize the point, the line, the organic combination of face three prints the effect, and combine arranging of shower nozzle array, can break through in traditional cloth thick liquid, the restriction that different components and/or colour thick liquid can only realize the linear type flow line, let the lines of thick liquid also can realize arranging wantonly, the cooperation of a plurality of shower nozzle arrays makes the texture of the imitative natural stone material that cloth thick liquid formed more clear lifelike, three-dimensional fine and smooth, pattern and lines effect are more abundant, transition effect is good gradually.

Description

Pulp distribution system and pulp distribution process in preparation of digital pulp distribution decorative rock plate

Technical Field

The invention relates to a pulp distribution system and a pulp distribution process for rock plate production, in particular to a pulp distribution system and a pulp distribution process for preparing a digital pulp distribution decorative rock plate.

Background

With the continuous development of social economy, the requirements of people on living quality and living environment are continuously improved, so that the decorative material imitating natural stone and being simple and natural is deeply loved by people.

At present, various process means and materials are utilized in the market to simulate the texture of the natural stone, 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. 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 slurry distribution system and a slurry distribution process in preparation of a digital slurry distribution decorative rock plate, aiming at solving the technical problems that the patterns of the existing rock plate products are not natural and rich enough, the textures are not clear and vivid enough, and the control of the patterns of a glaze pouring process in production is difficult.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pulp distribution system in the preparation of a digital pulp distribution decorative rock plate is characterized by comprising 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 an infrared signal transmitter 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 transmitter in the lower end of the extrusion device; a plurality of water outlet holes are distributed at the upper end of the flushing device; the telescopic baffle and the flushing device are both of semicircular structures.

Preferably, the computer control system is used for controlling the pulp distribution device to distribute pulp according to a preset texture.

Preferably, the nozzle array is a single-mode nozzle array formed by single rows of nozzles distributed in parallel at equal intervals, and can be suitable for pattern texture printing which is not particularly complex.

Preferably, 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.

Preferably, 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.

Preferably, the filter device is a screen.

Preferably, the mesh number of the screen is 50-600 meshes.

Preferably, the mesh number of the screen 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 gunite decorative rock plate can expand 0.85 mu m to 45 mu m, namely the cloth system can be suitable for the large-particle-size slurry 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.

Preferably, the filter device is a honeycomb ceramic.

Preferably, 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.

Preferably, the extrusion device is made of transparent silica gel.

Preferably, the hydrophobic film is mixed with a high hardness substance such as diamond sand.

Preferably, the flow restriction mechanism formed by the retractable baffle and the flushing device is of a petal-shaped structure.

Preferably, the opening and closing gap of the telescopic baffle is continuously controlled by 0-100%.

A pulp distribution process of a pulp distribution system in the preparation of a digital pulp distribution decorative rock plate is realized by the following modes: 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 transmitter 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 and enters a cleaning state, at the moment, the telescopic baffle plate is completely stretched, the flushing device is closed and is flushed by water outlet holes at the upper end of the flushing device, until the infrared signal transmitter 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, the telescopic baffle plate is closed again, and the spray head enters the working state again.

The invention has the beneficial effects that: on one hand, the traditional disc-spraying type slurry 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 slurry added with pigment, but the slurry distribution system in the preparation of the digital slurry-spraying decorative rock plate inputs digital patterns through a computer control system and drives a slurry distribution device to carry out slurry distribution decoration, and can carry out positioning distribution according to the required pattern patterns; on the other hand, compared with the spray disc type slurry distribution, the slurry distribution texture formed by spraying a plurality of slurry distribution pipelines in the prior art has certain improvement, a plurality of slurries with compositions and/or colors can be simultaneously distributed on the surface of a blank, but only the slurries with different compositions and/or colors can be distributed in a mode of adjacent intervals, namely only linear type 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 rock blank 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 effect is single, and the transitional property is poor, while the slurry distribution system in the preparation of the digital slurry distribution decoration rock slab inputs digital patterns through a computer control system, drives a slurry distribution device to carry out slurry distribution decoration, and can carry out positioning distribution according to preset patterns, the design is printed to the cascaded of grey scale through the shower nozzle to and current-limiting mechanism is to the control of play thick liquid thickness, can realize perfectly the point, the line, the organic combination of face three prints the effect, and combine arranging of shower nozzle array, can break through in traditional cloth thick liquid, the restriction that linear type flow line can only be realized to different constitution and/or colour thick liquid, let the lines of thick liquid also can realize arranging wantonly, the cooperation of a plurality of shower nozzle arrays makes the texture of the imitative natural stone material of cloth thick liquid formation more clear lifelike, three-dimensional fine and smooth, pattern and lines effect are more abundant, transition effect is good gradually.

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 current limiting mechanism 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-current-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 operating condition of the flow restriction mechanism in a petal configuration; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.

FIG. 9 is a schematic view of a petal configuration of the flow restrictor in a purge condition; wherein, 14-infrared signal receiver, 15-retractable baffle, 16-flushing device.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-9, the pulp distribution system in the preparation of the digital pulp distribution decorative rock plate of the embodiment is characterized by comprising 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 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 retractable baffle 15 and the flushing device 16 are both of a semicircular structure.

When the slurry distributing device works, when a transmission belt 2 on a frame 1 bears a rock plate blank 3 and moves to the lower end of the slurry distributing device 4, a computer control system drives the slurry distributing device 4 to distribute slurry for decoration on the surface of the rock plate blank 3 according to an input preset slurry distributing draft, slurry needs to be filtered by the filtering device 5 before entering the spray head 4-1 to remove granular aggregates in the slurry so as to prevent the spray head 4-1 from being blocked, then flows through the digital flowmeter 6 and then enters the spray head cavity 7, when the liquid level of the slurry in the spray head cavity 7 is higher than the inlet of the cache cavity 11, the slurry flows into the cache cavity 11, then the slurry distributing signal input end 8 receives a digital signal from the computer control system to drive the extruding device 9 to work, the extruding device 9 expands out a corresponding convex part according to the slurry required by a preset gray step, and extrudes the slurry out of the flow limiting mechanism 13, the telescopic baffle 15 of the flow limiting mechanism 13 is also controlled by a computer control system, and the thickness and the shape of the lines printed on the surface of the rock plate blank 3 by the slurry are controlled by adjusting 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, water outlet flushing is carried out by the 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 the spray head enters the working state again.

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 (15)

1. A pulp distribution system in the preparation of a digital pulp distribution decorative rock plate is characterized by comprising 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 an infrared signal transmitter 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 levels 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 transmitter in the lower end of the extrusion device; a plurality of water outlet holes are distributed at the upper end of the flushing device; the telescopic baffle and the flushing device are both of semicircular structures.

2. The grout distribution system in the preparation of the digital grout distribution decorative rock plate of claim 1, wherein the computer control system is used for controlling the grout distribution device to distribute grout according to a predetermined texture.

3. The grout distribution system in the preparation of a digital grout distribution decorative rock plate of claim 1, wherein said nozzle array is a single mode nozzle array formed by single row nozzles distributed in parallel at equal distances.

4. The grout distribution system in the preparation of the digital grout distribution decorative rock plate of claim 1, wherein said nozzle array is a mosaic pattern nozzle array formed by two rows of nozzles distributed in parallel at equal distances.

5. The grout distribution system in the preparation of a digital grout distribution decorative rock plate of claim 1, wherein said nozzle array is an alternating pattern nozzle array with nozzles cross-distributed.

6. The grout system in the preparation of digital grout decorative rock panel of claim 1, wherein said filtering means is a screen.

7. The pulp distribution system in the preparation of the digital pulp distribution decorative rock plate of claim 6, wherein the mesh number of the screen is 50-600 meshes.

8. The grout distribution system in the preparation of the digital grout decorative rock plate of claim 7, wherein the mesh number of the screen mesh is 200-325 meshes.

9. The grout system in the preparation of digital grout decorative rock plate of claim 1, wherein said filter device is honeycomb ceramic.

10. The slurry distribution system in the preparation of the digital slurry distribution decorative rock plate as claimed in claim 1, wherein the digital flow meter displays the flow rate of the slurry flowing into the spray head in real time and feeds the flow rate back to the computer control system, and the computer control system adjusts the flow rate of the slurry.

11. The grout distribution system in the preparation of the digital grout decorative rock plate of claim 1, wherein the extrusion device is made of transparent silica gel.

12. The slurry distribution system in the preparation of the digital slurry distribution decorative rock plate as claimed in claim 1, wherein the hydrophobic film is mixed with a high hardness substance of diamond sand type.

13. The grout distribution system in the preparation of the digital grout distribution decorative rock plate of claim 1, wherein the flow restriction mechanism formed by the retractable baffle and the flushing device is of a petal type structure.

14. The grout distribution system in the preparation of the digital grout distribution decorative rock plate as claimed in claim 1, wherein the opening and closing gap of the retractable baffle is continuously controlled from 0% to 100%.

15. A pulp distribution process of a pulp distribution system in preparation of a digital pulp distribution decorative rock plate is characterized in that the 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 transmitter 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 and enters a cleaning state, at the moment, the telescopic baffle plate is completely stretched, the flushing device is closed and is flushed by water outlet holes at the upper end of the flushing device, until the infrared signal transmitter 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, the telescopic baffle plate is closed again, and the spray head enters the working state again.

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