CN111203969B - High-precision full-digital decoration process for porcelain tiles - Google Patents

High-precision full-digital decoration process for porcelain tiles Download PDF

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Publication number
CN111203969B
CN111203969B CN202010145784.2A CN202010145784A CN111203969B CN 111203969 B CN111203969 B CN 111203969B CN 202010145784 A CN202010145784 A CN 202010145784A CN 111203969 B CN111203969 B CN 111203969B
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material distribution
transmission belt
full
material layer
precision
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CN111203969A (en
Inventor
李华云
李峰茂
王化能
何周祎
王华栋
方伟文
郭程长
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Deqing Nabel Ceramic Co ltd
Jiujiang Nabel Ceramic Co ltd
Hangzhou Nabel Ceramic Co ltd
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Deqing Nabel Ceramic Co ltd
Jiujiang Nabel Ceramic Co ltd
Hangzhou Nabel Ceramic Co ltd
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Publication of CN111203969A publication Critical patent/CN111203969A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215Feeding the moulding material in measured quantities from a container or silo
    • B28B13/0225Feeding specific quantities of material at specific locations in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001Applying decorations on shaped articles, e.g. by painting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215Feeding the moulding material in measured quantities from a container or silo
    • B28B13/022Feeding several successive layers, optionally of different materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063Control arrangements
    • B28B17/0081Process control

Abstract

The invention discloses a high-precision full-digital decoration process for porcelain tiles, which comprises the following steps: a) forming a full-body texture green body powder material layer by adopting a high-precision digital colorful material distribution system and a material distribution process; b) feeding the blank powder material layer with the whole texture into a die cavity of a press, and pressing and molding; c) carrying out symbol marking on the ceramic tile green body formed by pressing by using symbol marking equipment; d) drying; e) carrying out symbol mark identification on the dried ceramic tile green body by using a symbol mark identification device; f) and the penetrating ink-jet printer performs jet printing on the corresponding surface pattern texture on the surface of the porcelain tile blank in a contraposition manner according to the identified texture of the porcelain tile blank to form the final full-digital high-precision decorative effect. The invention can accurately position, fix point and quantitatively distribute powder with various compositions and colors, and combines a symbol marking-identification symbol marking process to realize accurate contraposition jet printing of penetrating ink-jet patterns to form through grains from top to bottom and from the outside to the inside, thereby solving the problems that after the ceramic tile is subjected to grooving, trimming or chamfering, the decoration effect is reduced and the aesthetic feeling is influenced because the surface grains of the ceramic tile are inconsistent with the colors or grains of a blank body in the decoration process.

Description

High-precision full-digital decoration process for porcelain tiles
Technical Field
The invention relates to a porcelain tile decoration process, in particular to a high-precision full-digital decoration process for porcelain tiles.
Background
The natural stone is influenced by long-term geological motion and climate change and is mixed with associated minerals with other colors, so that high-end, natural and rich decorative effects are formed, shapes such as lines, pits and patches are covered on texture patterns, and materials with various colors such as white, dark red and the like and transparent materials are included, so that the natural stone is favored by people as a high-grade decorative material. However, the radioactive minerals associated with some natural stones may cause radioactive damage to human health; the natural stone affected by geological action and weathering has more defects such as impurities, cracks and the like, and poor service performance, and needs to be waxed and the like in daily use, but the natural stone has the characteristics of natural pores and the like after a long time and can generate diseases such as alkali resistance or color spots and the like due to the permeation of other substances outside. In addition, the natural stone is used as an unrenewable resource, is expensive and is difficult to enter common families; the transitional exploitation of natural stones not only causes the exhaustion of rare and rare stone resources, but also seriously damages the natural ecological environment.
Therefore, in recent years, the natural stone texture imitating ceramic tiles gradually become a new favorite in the market, however, the existing natural stone texture imitating ceramic tiles still have defects on decoration textures, chinese patent CN201910066018.4 discloses a whole body unglazed marble ceramic tile and a manufacturing method thereof, the whole body textures of the ceramic tile are endowed in a way of combining multi-tube free cloth with drying and blank polishing, but in order to protect the surface textures, a transparent wear-resistant protective material is also needed to be added after ink-jet decoration, and the randomness of the textures is easily too large due to the multi-tube free cloth, so that the blank textures and the ink-jet textures are difficult to be completely matched, and after the drying and blank polishing process is used, due to different polishing depths, the presented textures are also different, so that the increase of the drying and blank polishing process brings great difficulty to texture control. Chinese patent CN201811600656.1 discloses a method and a device for preparing marble ceramic tiles with overall texture, the method comprises the steps of scanning selected natural marble stones to obtain a large-amplitude design drawing, manufacturing a grating of blank material pushing and distributing according to the design drawing, pushing the material by using the grating of the design drawing texture to form blank texture, and realizing ink-jet printing of patterns by using the same design drawing, so that the blank texture and the design drawing are combined to form the final overall texture, but multicolor blank powder is mixed by a hopper before entering the grating, so that the blank is formed, the distribution of blank powder with different colors is random, and the natural transition of the blank surface texture in the aspects of shape and color is difficult to ensure.
Disclosure of Invention
The invention provides a high-precision full-digital decoration process for porcelain tiles, which aims to solve the problems that in the prior art, after the surface of a porcelain tile needs to be subjected to grooving, trimming or chamfering, the decoration effect is reduced due to the fact that the surface texture of the porcelain tile is inconsistent with the color or texture of a blank, and the aesthetic feeling is affected, realize full-digital control of the texture of the whole cloth and vividly reproduce rich and fine color textures of natural stones.
In order to achieve the purpose, the invention adopts the following technical scheme: the high-precision full-digital decoration process for the porcelain tiles comprises the following steps:
a) forming a full-body texture green body powder material layer by adopting a high-precision digital colorful material distribution system and a material distribution process;
b) feeding the powder material layer of the full-body texture blank prepared in the step a) into a die cavity of a press, and performing compression molding;
c) marking the green body of the porcelain brick pressed and formed in the step b) with a symbol marking device;
d) drying;
e) carrying out symbol mark identification on the ceramic tile green body dried in the step d) by using equipment for identifying symbol marks, and further identifying the texture of the ceramic tile green body;
f) and e), the penetrating ink-jet printer performs jet printing on the corresponding surface pattern texture on the surface of the ceramic tile blank in an aligned manner according to the texture of the ceramic tile blank identified in the step e), so as to form the final full-digital high-precision decorative effect of the ceramic tile.
The high-precision digital colorful cloth system in the step a) comprises a computer hardware control system, a computer software control system and a high-precision digital colorful cloth device; the computer hardware control system provides an operating environment of the computer software control system; after the computer software control system inputs the digitized pattern, the high-precision digitized colorful cloth device is driven by control software to complete cloth distribution; the high-precision digital colorful material distribution device comprises a rack, a first transmission belt positioned on the rack, a material distribution system above the starting end along the movement direction of the first transmission belt, a baffle plate at the front end of the material distribution system along the movement direction of the first transmission belt, a material supplementing device at the front end of the baffle plate, a backing material distribution system at the front end of the material supplementing device, and a backing material supplementing device at the front end of the backing material distribution system; the fabric distributing system comprises a second transmission belt and fabric distributing equipment; the fabric distributing equipment comprises a hopper and a sub-conveying belt; the hopper is characterized in that the part in contact with the sub-conveying belt is a liftable metal barrier strip feed opening array controlled by a control software-driven electromagnetic valve; the front ends of the second transmission belts in the motion direction of the sub-transmission belts of each fabric distribution device are respectively provided with a laser detection self-feedback distribution automatic compensation device; the backing material distribution system comprises a third transmission belt and backing material distribution equipment, the structure of the device is the same as that of the backing material distribution system, only the backing material is distributed, and the movement directions of the third transmission belt and the sub-transmission belts of the backing material distribution system are opposite to the movement direction of the first transmission belt; the moving direction of the second transmission belt and the sub-transmission belt of the fabric distributing system is the same as the moving direction of the first transmission belt; and the front ends of the third transmission belts in the motion direction of the sub-transmission belts of each backing material distribution device are respectively provided with a laser detection self-feedback distribution automatic compensation device.
Furthermore, the fabric distributing device of the fabric distributing system comprises a first distributing device, a second distributing device, a third distributing device and a fourth distributing device which are arranged at the starting end along the moving direction of the first transmission belt; the backing material distributing device of the backing material distributing system comprises an eighth distributing device, a seventh distributing device, a sixth distributing device and a fifth distributing device which are arranged at the starting end along the moving direction of the first conveying belt.
Furthermore, the liftable metal barrier strip feed opening array is formed by combining a plurality of independently controlled metal barrier strips.
Furthermore, the number of the metal barrier strips of the liftable metal barrier strip feed opening array is 60-400.
Furthermore, the opening and closing state of the liftable metal barrier strip feed opening array is continuous.
Furthermore, the opening and closing states of the liftable metal barrier strip feed opening array are closing, 1/4 opening, 1/2 opening, 3/4 opening and full opening.
Furthermore, the opening and closing state of the liftable metal barrier strip feed opening array is closed and fully opened.
Furthermore, laser detection self-feedback cloth automatic compensation device monitors the thickness of the blanking layer of each cloth device in advance according to the thickness of the required material layer, feeds back the material layer position with insufficient height, transmits information to the subsequent cloth device needing cloth, and enables the subsequent cloth device to adjust the blanking amount of the material layer position with insufficient height.
The step a) adopts the material distribution process of the high-precision digital colorful material distribution system, which is realized by the following method that when the material distribution process is in work, a computer software control system inputs digital patterns, the high-precision digital colorful material distribution device is driven to work by control software, material distribution devices in the material distribution system sequentially feed materials to form a material layer on a second transmission belt, the material distribution process of a backing material distribution system is consistent with that of the material distribution system, the starting working time of the backing material distribution system is later than the starting working time of the material distribution system, the material distribution devices in the backing material distribution system sequentially feed materials to form a backing material layer on a third transmission belt, the material layer and the backing material layer sequentially fall onto the first transmission belt, the backing material layer falls onto the material layer of the first transmission belt to form a blank powder material layer with full texture, and then, feeding the whole texture blank powder material layer into a press die cavity through a first conveying belt for back pressure forming; the moving direction of the second transmission belt is the same as that of the first transmission belt; the third transmission belt moves in the direction opposite to the first transmission belt; the front ends of the material distribution devices of the surface material distribution system and the bottom material distribution system are respectively provided with a laser detection self-feedback material distribution automatic compensation device which respectively monitors the heights of the surface material layer and the bottom material layer and feeds information back to the next surface material or bottom material distribution device, and the next surface material or bottom material distribution device adjusts the blanking amount of the material layer with insufficient height of the surface material or bottom material layer according to the fed information.
Further, the material distribution process of the high-precision digital multicolor material distribution system adopted in the step a) is realized in the following way, when the material distribution process works, a computer hardware control system and a computer software control system input digital patterns, the control software is used for driving the high-precision digital multicolor material distribution device to work, the fabric material distribution system of the high-precision digital multicolor material distribution device is sequentially provided with a first material distribution device, a second material distribution device, a third material distribution device and a fourth material distribution device at the starting end along the movement direction of a first conveying belt, and the bed material distribution system of the high-precision digital multicolor material distribution device is sequentially provided with an eighth material distribution device, a seventh material distribution device, a sixth material distribution device and a fifth material distribution device at the starting end along the movement direction of the first conveying belt; the hopper of a first material distribution device of the high-precision digital colorful material distribution device starts to feed materials, the thickness and the texture of a material layer which is distributed on a distribution transmission belt of the first material distribution device are controlled by a liftable metal barrier strip feed opening array, the material layer falls onto a second transmission belt, the second transmission belt transmits the material layer to the lower part of a second material distribution device, in the motion process, a laser detection self-feedback material distribution automatic compensation device monitors the height of the material layer which is distributed on the first material distribution device and feeds back the information to the second material distribution device, the second material distribution device adjusts the feed height of the liftable metal barrier strip feed opening array according to the information which is fed back by the laser detection self-feedback material distribution automatic compensation device, powder is distributed on the distribution transmission belt of the second material distribution device by a certain texture to form the thickness of the material layer, and the material layer falls onto the material layer which is distributed on the first material distribution device, the second transmission belt conveys the material layer to the lower part of a third material distribution device to work consistently with the first and the second material distribution devices, the third material distribution device drops the powder material to the upper part of the material layer fed by the first and the second material distribution devices according to the information fed by the laser detection self-feedback material distribution automatic compensation device on the second transmission belt and the front end of the second material distribution device, the second transmission belt conveys the material layer to the lower part of a fourth material distribution device to work consistently with the first, the second and the third material distribution devices, the fourth material distribution device drops the powder material to the upper part of the material layer fed by the first, the second and the third material distribution devices on the second transmission belt and the laser detection self-feedback material distribution automatic compensation device on the front end of the third material distribution device according to the information fed by the laser detection self-feedback material distribution automatic compensation device on the second transmission belt and the sub-transmission belt of the fourth material distribution device, then, the material layer falls onto a first transmission belt through a baffle plate by a laser detection self-feedback cloth automatic compensation device, the material layer is transmitted to the lower part of a material supplementing device by the first transmission belt, and the material supplementing device supplements the material layer on the first transmission belt according to the information fed back by the laser detection self-feedback cloth automatic compensation device at the front end of a fourth material distribution device on a second transmission belt, so that the material layer is formed; the backing material distribution system and the surface material distribution system have the same distribution process, the motion directions of the third transmission belt and the sub-transmission belt of the backing material distribution system are opposite to the motion direction of the first transmission belt, the starting working time of the backing material distribution system is slightly later than the starting working time of the surface material distribution system, when a first distribution device of the surface material distribution system forms a material layer on the second transmission belt, a fifth distribution device of the backing material distribution system starts to discharge materials, the sub-transmission belt of the eighth distribution device drops backing material powder onto the material layers discharged by the fifth, sixth and seventh distribution devices through the same distribution process as the surface material distribution system, and then the backing material layer passes through a laser detection self-feedback distribution automatic compensation device at the front end of the eighth distribution device and falls onto the surface material layer of the first transmission belt to form a blank powder layer with through textures, and then is transmitted to the lower part of the backing material device through the first transmission belt, and the backing material supplementing device performs backing material supplementing on the full-body texture green body powder material layer on the first conveying belt according to the information fed back by the self-feedback material distribution automatic compensation device for laser detection at the front end of the eighth material distribution device on the third conveying belt to form a final full-body texture green body powder material layer, and then sends the full-body texture green body powder material layer into a press die cavity through the first conveying belt for back pressure forming.
Furthermore, the liftable metal barrier strip feed opening arrays at the lower ends of the hoppers in the fabric distribution system and the bottom material distribution system are lifted under the control of control software, and are matched with each other in the direction perpendicular to the movement direction of the first transmission belt to form an opening and closing feeding array.
Furthermore, the liftable metal barrier strip feed opening array is controlled by a control software-driven electromagnetic valve, the opening and closing state of the feed opening array is continuous, namely the feed opening array can be expanded to various states except for the closing state and the opening state, such as the continuous state control of closing, 1/4 opening, 1/2 opening, 3/4 opening, full opening and the like, and the size of the feed opening is controllable. The size of the opening diameter of the feed opening is matched with the opening and closing time, so that on one hand, the shortage part of the cloth layer in the previous process can be compensated; on the other hand, various thick and thin line textures can be flexibly realized. The traditional blanking mode only has two states of full opening and closing, the lines formed by the blanking opening cloth in the full opening state are thick, the details of the texture lines formed by the powder are weakened, and the texture fidelity is reduced; and the material can not be discharged in the closed state. Therefore, the traditional blanking mode has single realization of line texture, and is difficult to present rich texture with natural variation and alternate thickness of natural stone. The invention provides a plurality of choices for texture decoration by redesigning the array of the feed openings controlled by the cloth powder control software driving electromagnetic valves, such as thick lines in the texture, and the feed openings controlled by the control software driving electromagnetic valves can be selected to be in a full-open state. The fine lines in the texture can be selected to control the opening of the feed opening controlled by the software-driven solenoid valve to be in an 1/4 open state, and the opening diameter of the feed opening controlled by the software-driven solenoid valve is reasonably regulated and controlled by the digital distributing machine to be switched randomly through the setting of the program, so that the working efficiency of the equipment is improved, and the 'true through body' brick blank with fine and vivid texture can be prepared.
Further, the second conveying belt and the third conveying belt move at the same speed, but are higher than the first conveying belt.
Further, the second transmission belt and the third transmission belt have the same moving speed which is 3 times of the moving speed of the first transmission belt.
Furthermore, the feed inlets of the fabric material supplementing device and the bottom material supplementing device are connected with powder, and the feed inlet is funnel-shaped.
Furthermore, the feed openings of the fabric feeding device and the backing material feeding device comprise baffles, and the opening and closing size can be controlled to control the feeding amount.
Furthermore, the material supplementing device and the base material supplementing device can move along the moving direction of the first conveying belt and in the direction perpendicular to the moving direction of the first conveying belt, namely, the materials can be supplemented flexibly in the whole plane range parallel to the material layer according to the requirement.
And c) the symbol marking equipment consists of a laser sensor, a spray gun, an ink box filled with ink, a network receiver, a control circuit and an operation display screen.
The working process of the symbol marking device in the step c) is as follows: when the conveying bearing conveys the blanks to the laser sensor, the sensor senses that the blanks reach the identification area, the light signals are converted into electric signals, the working current of the spray gun is started, and then the spray gun sprays the markers on the side faces of the blanks, and each blank is required to be guaranteed to have a unique mark symbol. The network receiver ensures that the equipment is in a networking state, the network is utilized to transmit the working instruction marked by the equipment to the identification mark symbol device, and the identification mark symbol device commands the ink-jet printer to spray and print the patterns which are the same as the texture of the blank body through the identification marker, and ensures that the ink-jet printing texture is completely overlapped with the texture of the blank body without dislocation between the ink-jet texture and the texture of the blank body.
The equipment for identifying the symbol mark in the step e) consists of a laser sensor, a network receiver, a control circuit and an operation display screen.
The working process of the device for recognizing the symbol mark in the step e) is as follows: by identifying the markers on the side surface of the blank body, each marker corresponds to an ink-jet printing file, when the marked blank body is conveyed to a laser sensor identification area of identification marking equipment by a conveying bearing, a laser optical signal is converted into an electric signal, an identification device issues an instruction to an ink-jet machine, the ink-jet machine sprays and prints patterns consistent with the texture of the blank body, the ink-jet printing texture is completely overlapped with the texture of the blank body, and the dislocation between the ink-jet texture and the texture of the blank body does not exist, so that the full-automatic accurate alignment of the texture of the blank body and the ink-jet texture is realized.
The marks have one-to-one correspondence with the textures of the blank, and the equipment for identifying the marks can transmit instructions to spray different patterns to an ink-jet printer according to the difference of the marks, so that the overall texture of the blank from top to bottom is finally realized.
Further, the symbol marking device in the step c) marks the edge of the ceramic tile blank formed in the step b).
Further, the symbol marked by the symbol marking device in the step c) is a single, namely, recognizable independent symbol, such as 1, 2, 3 … …; or a, b, c … …. The mark marked by the traditional marking equipment is an identification texture formed by a plurality of marks together, for example, a dot-shaped mark, and a marked whole body texture is a 3 rd pattern, and is marked as 3 points (a.cndot.) on the edge of a blank, but once the blank is rubbed during the conveying process, or 1 or half of the points are shielded by dust and impurities, the equipment for identifying the mark symbol cannot identify or identifies wrongly. The invention can mark and identify single independent symbol, the number of independent symbols can be single or multiple.
Further, the number of the symbols marked on the edge of the single-piece blank by the symbol marking device in the step c) is 3-6.
The invention has the following beneficial effects: by applying the high-precision full-digital decoration process for the porcelain tiles, powder with various compositions and colors can be accurately positioned, fixed in point and quantitatively distributed to realize continuous through texture, and the penetrating ink-jet patterns are accurately aligned and jet-printed on the surface of a blank by combining a symbol marking-symbol marking identification process to form through texture from top to bottom and from the surface to the inside, so that the problems that the decoration effect is reduced and the aesthetic feeling is influenced because the texture on the surface of the ceramic tiles is inconsistent with the color or texture of the blank after the surface of the ceramic tiles is subjected to grooving, trimming or chamfering in the decoration process are solved.
Drawings
FIG. 1 is a flow chart of the high-precision full-digitalized decoration process of the porcelain tile of the present invention.
Fig. 2 is a schematic diagram of the blank marked by the symbol marking device, wherein the number of the marking symbols is 6, and the marking symbols mean that a 3 rd texture pattern is adopted.
FIG. 3 is a diagram of the high-precision fully-digitalized decoration effect formed by identifying the symbol mark and performing alignment penetration ink-jet.
Fig. 4 is a structural diagram of the components of the high-precision digital multicolor fabric system of the invention.
FIG. 5 is a schematic view of a high-precision digital multicolor distributing device according to the present invention.
Fig. 6 is a schematic diagram of a liftable metal barrier strip feed opening array controlled by a control software-driven solenoid valve.
In FIG. 3, A is the texture of the surface of the blank formed after the ink is injected by the contraposition permeation, and B is the texture of the whole body formed by the high-precision digital multicolor cloth system.
In FIG. 5, 1-the gantry; 2-a first conveyor belt; 3-fabric material distribution system; 4-a second conveyor belt; 5-fabric distributing equipment; 6-a fabric hopper; 6-1-a metal barrier strip feed opening array capable of being lifted; 7, distributing a fabric material system by a transmission belt; 8-laser detection self-feedback cloth automatic compensation device; 9-baffle plate; 10-fabric feeding device; 11-bed charge distribution system; 12-third conveyor belt; 13-bed charge distribution equipment; 14-bottom material hopper; 15-a backing material distributing system is divided into a conveying belt; 16-primer feeding device, and the arrow indicates the belt advancing direction.
In FIG. 6, 6-1-an array of liftable metal barrier strip feed openings; and 7, distributing the fabric material system by a transmission belt.
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 to 6, the present invention is realized by the following steps:
a) and forming a full-body texture green body powder material layer by adopting a high-precision digital colorful material distribution system and a material distribution process.
The high-precision digital colorful cloth system comprises a computer hardware control system, a computer software control system and a high-precision digital colorful cloth device; the computer hardware control system provides an operating environment of the computer software control system; after the computer software control system inputs the digitized pattern, the high-precision digitized colorful cloth device is driven by control software to complete cloth distribution; the high-precision digital colorful material distribution device comprises a rack 1, a first transmission belt 2 positioned on the rack, a material distribution system 3 above the starting end along the movement direction of the first transmission belt 2, a baffle 9 at the front end of the material distribution system 3 along the movement direction of the first transmission belt 2, a material supplementing device 10 at the front end of the baffle 9, a backing material distribution system 11 at the front end of the material supplementing device 10, and a backing material supplementing device 16 at the front end of the backing material distribution system 11; the fabric distributing system 3 comprises a second transmission belt 4 and fabric distributing equipment 5; the fabric distributing device 5 comprises a hopper 6 and a sub-conveying belt 7; the contact part of the hopper 6 and the sub-conveying belt 7 is a liftable metal barrier strip feed opening array 6-1 controlled by a control software-driven electromagnetic valve; the front ends of the second transmission belts 4 in the motion direction of the sub-transmission belts 7 of each fabric distribution device 5 are respectively provided with a laser detection self-feedback distribution automatic compensation device 8; the backing material distribution system 11 comprises a third transmission belt 12 and a backing material distribution device 13, the device structure of the backing material distribution system 11 is the same as that of the backing material distribution system 3, only backing materials are distributed, and the moving directions of the third transmission belt 12 and a sub-transmission belt 15 of the backing material distribution system 11 are opposite to the moving direction of the first transmission belt 2; the moving directions of the second transmission belt 4 and the sub-transmission belt 7 of the fabric distribution system 3 are the same as the moving direction of the first transmission belt 2; and the front ends of the third conveying belts 12 in the motion direction of the sub-conveying belts 15 of each backing material distribution device 13 are respectively provided with a laser detection self-feedback distribution automatic compensation device 8.
Laser detection self-feedback cloth automatic compensation device monitors the bed thickness of unloading of every cloth equipment according to required bed thickness in advance, feeds back the bed position of material of not enough height, with information conduction to the follow-up cloth equipment that needs the cloth, makes follow-up cloth equipment carry out the unloading volume adjustment to the bed position of material of not enough height, and the adjustment mode is through solenoid valve control liftable metal blend stop feed opening array, makes liftable metal blend stop feed opening array rise, increases the unloading volume to compensate the vacancy of the not enough height of preceding cloth bed of material.
The fabric distributing device of the fabric distributing system comprises a first distributing device, a second distributing device, a third distributing device and a fourth distributing device which are arranged at the starting end along the movement direction of the first transmission belt; the backing material distributing device of the backing material distributing system comprises an eighth distributing device, a seventh distributing device, a sixth distributing device and a fifth distributing device which are arranged at the starting end along the moving direction of the first conveying belt.
The working process is as follows: when the high-precision digital colorful material distribution device works, a computer hardware control system and a computer software control system input digital patterns, and control software is used for driving the high-precision digital colorful material distribution device to work, wherein a fabric material distribution system of the high-precision digital colorful material distribution device is provided with a first material distribution device, a second material distribution device, a third material distribution device and a fourth material distribution device which are sequentially distributed at the starting ends along the movement direction of a first transmission belt, and a backing material distribution system of the high-precision digital colorful material distribution device is provided with a backing material distribution device, a seventh material distribution device, a sixth material distribution device and a fifth material distribution device which are sequentially distributed at the starting ends along the movement direction of the first transmission belt; in the fabric distributing system 3 of the high-precision digital colorful distributing device, a first distributing device hopper 6 of a fabric distributing device 5 starts to discharge materials, the thickness and the texture of the material layer which is paved on a first distributing device sub-transmission belt 7 are controlled through a liftable metal barrier strip discharging opening array 6-1, the material layer falls onto a second transmission belt 4, the second transmission belt 4 conveys the material layer to the lower part of a second distributing device, in the motion process, a laser detection self-feedback fabric automatic compensation device 8 monitors the height of the material layer which is paved on the first distributing device and feeds the information back to the second distributing device, the second distributing device adjusts the discharging height of the liftable metal barrier strip discharging opening array 6-1 according to the information which is fed back by the laser detection self-feedback fabric automatic compensation device 8, and the powder materials are paved on the second distributing device sub-transmission belt by certain texture, forming the thickness of a material layer, enabling the material layer to fall onto a material layer distributed by a first material distribution device, conveying the material layer to the lower part of a third material distribution device by a second conveying belt 4 to work consistently with the first material distribution device and the second material distribution device, enabling the third material distribution device to discharge the material according to information fed back by a laser detection self-feedback material distribution automatic compensation device 8 at the front end of the second material distribution device on the second conveying belt 4, enabling powder to fall onto the material layer discharged by the first material distribution device and the second material distribution device through a sub-conveying belt of the third material distribution device, conveying the material layer to the lower part of a fourth material distribution device by a second conveying belt 4 to work consistently with the first material distribution device, the second material distribution device and the third material distribution device, enabling the fourth material distribution device to discharge the material according to information fed back by the laser detection self-feedback material distribution automatic compensation device 8 at the front end of the third material distribution device on the second conveying belt 4, and enabling the powder to fall onto the first material distribution device, the second material distribution device 4 through the sub-conveying belt of the fourth material distribution device, Secondly, on the bed of material that third cloth equipment laid, later, the bed of material was through laser detection self-feedback cloth automatic compensation arrangement 8, on dropping to first transmission belt 2 through baffle 9, first transmission belt carried the bed of material to surface fabric feed supplement device 10 below, surface fabric feed supplement device 10 carries out the feed supplement to the surface fabric bed of material on the first transmission belt 2 according to the laser detection self-feedback cloth automatic compensation arrangement 8 feedback's of fourth cloth equipment front end on the second transmission belt 4 information, thereby form the surface fabric bed of material.
The work time of the backing material distribution system 11 is slightly later than the work time of the fabric distribution system 3, when the first material distribution device of the fabric distribution system 3 forms a material layer on the second transmission belt 4, the fifth material distribution device hopper 14 of the backing material distribution system 11 starts to feed, the material distribution process of the backing material distribution system 11 is consistent with the material distribution process of the fabric distribution system 3, the movement direction of the third transmission belt 12 and the sub-transmission belt 15 of the backing material distribution system 11 is opposite to the movement direction of the first transmission belt 2, the sub-transmission belt of the eighth material distribution device drops the backing material powder onto the material layers fed by the fifth, sixth and seventh material distribution devices through the material distribution process same with the fabric distribution system 3, and then the backing material layer passes through the laser detection self-feedback material distribution automatic compensation device 8 at the front end of the eighth material distribution device and drops onto the fabric layer of the first transmission belt 2, the blank powder material layer with the full body texture is formed and is then transmitted to the lower part of a backing material supplementing device 16 through a first transmission belt 2, the backing material supplementing device 16 performs backing material supplementing on the full body texture blank powder material layer on the first transmission belt 2 according to information fed back by a self-feedback material distribution automatic compensation device 8 detected by laser at the front end of eighth material distribution equipment on a third transmission belt 12, a final full body texture blank powder material layer is formed, and then the full body texture blank powder material layer is sent into a press die cavity through the first transmission belt to be subjected to back pressure forming.
The liftable metal barrier strip lower opening array 6-1 is controlled by a control software-driven electromagnetic valve, the opening and closing state is continuous, the liftable metal barrier strip lower opening array 6-1 comprises 180 metal barrier strips in the direction perpendicular to the first transmission belt 2, the opening and closing state adopts the closing, 1/4 opening, 1/2 opening, 3/4 opening and full opening states which are unevenly distributed, and diversified textures such as thick lines, patches, pockmarks and the like are realized.
The second transmission belt 4 and the third transmission belt 12 move at the same speed which is 3 times of the speed of the first transmission belt 2.
b) Feeding the powder material layer of the full-body texture blank prepared in the step a) into a die cavity of a press, and pressing and molding.
c) And c), carrying out symbol marking on the ceramic tile blank pressed and formed in the step b) by using symbol marking equipment, wherein the number of the marked symbols is 6, and the symbol pattern is 3.
d) And (5) drying.
e) And d), carrying out symbol mark identification on the ceramic tile blank dried in the step d) by using a symbol mark identification device, and further identifying the texture of the ceramic tile blank.
f) And e), carrying out jet printing on the corresponding surface pattern texture on the surface of the porcelain tile blank in an alignment manner by using a penetrating ink-jet printer according to the texture of the porcelain tile blank identified in the step e), so as to form the final high-precision full-digital decoration effect of the porcelain tile.
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 (24)

1. A high-precision full-digital decoration process for porcelain tiles is characterized by comprising the following steps:
a) forming a full-body texture green body powder material layer by adopting a high-precision digital colorful material distribution system and a material distribution process;
b) feeding the powder material layer of the full-body texture blank prepared in the step a) into a die cavity of a press, and performing compression molding;
c) marking the green body of the porcelain brick pressed and formed in the step b) with a symbol marking device;
d) drying;
e) carrying out symbol mark identification on the ceramic tile green body dried in the step d) by using equipment for identifying symbol marks, and further identifying the texture of the ceramic tile green body;
f) c, the penetrating ink-jet printer performs jet printing on the corresponding surface pattern texture on the surface of the porcelain tile blank in an aligned manner according to the texture of the porcelain tile blank identified in the step e) to form the final full-digital high-precision decorative effect of the porcelain tile;
the high-precision digital colorful material distribution system in the step a) comprises a computer hardware control system, a computer software control system and a high-precision digital colorful material distribution device; the computer hardware control system provides an operating environment of the computer software control system; after the computer software control system inputs the digitized pattern, the high-precision digitized colorful cloth device is driven by control software to complete cloth distribution; the high-precision digital colorful material distribution device comprises a rack, a first transmission belt positioned on the rack, a material distribution system above the starting end along the movement direction of the first transmission belt, a baffle plate at the front end of the material distribution system along the movement direction of the first transmission belt, a material supplementing device at the front end of the baffle plate, a backing material distribution system at the front end of the material supplementing device, and a backing material supplementing device at the front end of the backing material distribution system; the fabric distributing system comprises a second transmission belt and fabric distributing equipment; the fabric distributing equipment comprises a hopper and a sub-conveying belt; the hopper is characterized in that the part in contact with the sub-conveying belt is a liftable metal barrier strip feed opening array controlled by a control software-driven electromagnetic valve; the front ends of the second transmission belts in the motion direction of the sub-transmission belts of each fabric distribution device are respectively provided with a laser detection self-feedback distribution automatic compensation device; the backing material distribution system comprises a third transmission belt and backing material distribution equipment, the structure of the device is the same as that of the backing material distribution system, only the backing material is distributed, and the movement directions of the third transmission belt and the sub-transmission belts of the backing material distribution system are opposite to the movement direction of the first transmission belt; the moving direction of the second transmission belt and the sub-transmission belt of the fabric distributing system is the same as the moving direction of the first transmission belt; laser detection self-feedback cloth automatic compensation devices are arranged on the third transmission belts and at the front ends of the third transmission belts in the movement direction of the sub-transmission belts of each backing material distribution device;
the material distribution process of the high-precision digital colorful material distribution system in the step a) is as follows: when the machine works, a computer software control system inputs digital patterns, the high-precision digital colorful material distribution device is driven to work through control software, material distribution equipment in a material distribution system sequentially discharges materials to form a material layer on a second transmission belt, a backing material distribution system is consistent with the material distribution process of the material distribution system, the starting working time of the backing material distribution system is later than the initial working time of the material distribution system, the material distribution equipment in the backing material distribution system sequentially discharges materials to form a backing material layer on a third transmission belt, the material layer and the backing material layer sequentially fall onto the first transmission belt, the backing material layer falls onto the material layer of the first transmission belt to form a blank powder layer with full texture, and then the blank powder layer with full texture is sent into a die cavity of a press through the first transmission belt to be molded in a back pressure mode; the moving direction of the second transmission belt is the same as that of the first transmission belt; the third transmission belt moves in the direction opposite to the first transmission belt; the front ends of the material distribution devices of the surface material distribution system and the bottom material distribution system are respectively provided with a laser detection self-feedback material distribution automatic compensation device which respectively monitors the heights of the surface material layer and the bottom material layer and feeds information back to the next surface material or bottom material distribution device, and the next surface material or bottom material distribution device adjusts the blanking amount of the material layer with insufficient height of the surface material or bottom material layer according to the fed information.
2. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the liftable metal barrier strip feed opening array is formed by combining a plurality of independently controlled metal barrier strips.
3. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the number of the metal barrier strips of the liftable metal barrier strip feed opening array is 60-400.
4. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the opening and closing state of the liftable metal barrier strip feed opening array is continuous.
5. The high-precision full-digitalization decoration process for ceramic tiles of claim 4, wherein: the opening and closing states of the liftable metal barrier strip feed opening array are closing, 1/4 opening, 1/2 opening, 3/4 opening and full opening.
6. The high-precision full-digitalization decoration process for ceramic tiles of claim 5, wherein: the opening and closing state of the liftable metal barrier strip feed opening array is closing and full opening.
7. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the laser detection self-feedback cloth automatic compensation device monitors the thickness of a blanking layer of each cloth device in advance according to the required thickness of the material layer, feeds back the position of the material layer with insufficient height, transmits information to the subsequent cloth device needing cloth, and enables the subsequent cloth device to adjust the blanking amount of the material layer with insufficient height.
8. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the fabric distributing system is characterized in that a first distributing device, a second distributing device, a third distributing device and a fourth distributing device are sequentially distributed at the starting end along the moving direction of the first transmission belt, and an eighth distributing device, a seventh distributing device, a sixth distributing device and a fifth distributing device are sequentially distributed at the starting end along the moving direction of the first transmission belt.
9. The high-precision full-digitalization decoration process for ceramic tiles of claim 8 is characterized in that: the material distribution process of the high-precision digital colorful material distribution system in the step a) is as follows: when the high-precision digital colorful material distribution device works, a computer software control system inputs digital patterns, the high-precision digital colorful material distribution device is driven to work through control software, a fabric material distribution system of the high-precision digital colorful material distribution device is sequentially provided with a first material distribution device, a second material distribution device, a third material distribution device and a fourth material distribution device at the starting end along the movement direction of a first transmission belt, and a backing material distribution system of the high-precision digital colorful material distribution device is sequentially provided with an eighth material distribution device, a seventh material distribution device, a sixth material distribution device and a fifth material distribution device at the starting end along the movement direction of the first transmission belt; the hopper of a first distributing device of a high-precision digital colorful distributing device starts to feed, the thickness and the texture of a material layer which is spread on a distribution transmission belt of the first distributing device are controlled by a liftable metal barrier strip feed opening array, the material layer falls onto a second transmission belt, the material layer is conveyed to the lower part of the second distributing device by the second transmission belt, in the motion process, a laser detection self-feedback distributing automatic compensation device at the front end of the first distributing device monitors the height of the material layer which is fed by the first distributing device and feeds back the information to the second distributing device, the second distributing device adjusts the feed height of the liftable metal barrier strip feed opening array according to the information which is fed back by the laser detection self-feedback distributing automatic compensation device, powder is spread on the distribution transmission belt of the second distributing device by a certain texture to form the thickness of the material layer, and the material layer falls onto the material layer which is distributed by the first distributing device, the second transmission belt conveys the material layer to the position below a third material distribution device, then the third material distribution device and a fourth material distribution device sequentially perform blanking according to the same working process, then the material layer passes through a laser detection self-feedback material distribution automatic compensation device at the front end of the fourth material distribution device and falls onto the first transmission belt through a baffle, the first transmission belt conveys the material layer to the position below a material supplementing device, and the material supplementing device supplements the material for the material layer on the first transmission belt according to the information fed back by the laser detection self-feedback material distribution automatic compensation device at the front end of the fourth material distribution device, so that the material layer is formed; the backing material distribution system and the surface material distribution system have the same distribution process, the motion directions of the third transmission belt and the sub-transmission belt of the backing material distribution system are opposite to the motion direction of the first transmission belt, the starting working time of the backing material distribution system is slightly later than the starting working time of the surface material distribution system, when a first distribution device of the surface material distribution system forms a material layer on the second transmission belt, a fifth distribution device of the backing material distribution system starts to discharge materials, the sub-transmission belt of the eighth distribution device drops backing material powder onto the material layers discharged by the fifth, sixth and seventh distribution devices through the same distribution process as the surface material distribution system, and then the backing material layer passes through a laser detection self-feedback distribution automatic compensation device at the front end of the eighth distribution device and falls onto the surface material layer of the first transmission belt to form a blank powder layer with through textures, and then is transmitted to the lower part of the backing material device through the first transmission belt, and the backing material supplementing device performs backing material supplementing on the full-body texture green body powder material layer on the first conveying belt according to the information fed back by the self-feedback material distribution automatic compensation device for laser detection at the front end of the eighth material distribution device on the third conveying belt to form a final full-body texture green body powder material layer, and then sends the full-body texture green body powder material layer into a press die cavity through the first conveying belt for back pressure forming.
10. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the lower end of the hopper in the fabric distribution system and the bottom material distribution system is provided with a liftable metal barrier strip feed opening array which is controlled by control software to lift.
11. The high-precision full-digitalization decoration process for ceramic tiles of claim 10, wherein: the liftable metal barrier strip feed opening array is an array for opening and closing feed formed by mutually matching a plurality of metal barrier strips in a direction vertical to the motion direction of the first transmission belt.
12. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the number of the metal barrier strips of the liftable metal barrier strip feed opening array is 60-400.
13. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the opening and closing state of the liftable metal barrier strip feed opening array is continuous.
14. The high-precision full-digitalization decoration process for ceramic tiles of claim 13, wherein: the opening and closing states of the liftable metal barrier strip feed opening array are closing, 1/4 opening, 1/2 opening, 3/4 opening and full opening.
15. The high-precision full-digitalization decoration process for ceramic tiles of claim 14, wherein: the opening and closing state of the liftable metal barrier strip feed opening array is closing and full opening.
16. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the second conveying belt and the third conveying belt move at the same speed but are higher than the first conveying belt.
17. The high-precision full-digitalization decoration process for ceramic tiles of claim 16, wherein: the second transmission belt and the third transmission belt have the same movement speed which is 3 times of the movement speed of the first transmission belt.
18. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the material supplementing device for the fabric and the material supplementing device for the bottom material are funnel-shaped.
19. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the feed openings of the fabric material supplementing device and the bottom material supplementing device comprise baffles.
20. The high-precision full-digitalization decoration process for ceramic tiles of claim 9, wherein: the surface material supplementing device and the bottom material supplementing device move and supplement materials in the whole plane range parallel to the material layer.
21. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: and c) the symbol marking equipment consists of a laser sensor, a spray gun, an ink box filled with ink, a network receiver, a control circuit and an operation display screen.
22. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the equipment for identifying the symbol mark in the step e) consists of a laser sensor, a network receiver, a control circuit and an operation display screen.
23. The high-precision full-digitalization decoration process for ceramic tiles as claimed in claim 1, wherein: the symbol marking device in the step c) marks the edge of the ceramic tile blank formed in the step b).
24. The high-precision full-digitalization decoration process for ceramic tiles of claim 23, wherein: the symbol marked by the symbol marking device in the step c) is a single independent symbol which can be identified.
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