A slurry pouring device for preparing colorful porcelain plates and its use method

Abstract

The present invention discloses a slurry dispensing device for producing multi-colored ceramic panels and its use method. The slurry dispensing device comprises, from bottom to top, a body conveying device, a slurry dispensing device, and a slurry dispensing device. The present invention utilizes the slurry dispensing device to dynamically dispense multi-colored slurries through real-time color mixing and real-time use, resulting in ceramic panels with high color vividness, high purity, high concentration, and a flowing decorative effect, thus meeting the diverse needs of people for decorative ceramic panels.

Description

Technical Field

[0001] The present invention belongs to the field of ceramic production equipment, and in particular relates to a slurry pouring device for preparing colorful ceramic plates, and also relates to a method for using the device. Background Art

[0002] As people's living standards continue to improve, their material demands for a better life are becoming increasingly higher. In particular, high-temperature fired ceramic panels are increasingly used due to their excellent physical and chemical properties when it comes to decorative and finishing materials. As people's aesthetics become increasingly diverse, demand for ceramic panels with colorful patterns formed by high-purity and high-concentration colors is increasing for use in finishing materials such as walls, floors, furniture, cabinets, and countertops. Ceramic panels with patterns that resemble the natural flow of color are particularly popular among young people.

[0003] Currently, the industry is constantly improving the methods for patterning ceramic panels. Among the most widely used methods are ceramic inkjet printing or inkjet penetration. However, due to the size limitations of the nozzle aperture and the need to prevent the ink from settling, the solid content of the pigment cannot be too high. This limits the concentration and purity of the color formed, and it is difficult to achieve a decorative effect with liquid flow. In recent years, ceramic panel manufacturers and researchers have gradually shifted their research direction to improving the spraying equipment to produce ceramic panels with a variety of colors by spraying multiple color slurries.

[0004] CN105819902A discloses a bell-shaped grouting device for multi-layer mixed grouting and a method for preparing ceramic tiles. The bell-shaped grouting device for multi-layer mixed grouting includes a multi-layer slurry storage tank and a slurry bell. The multi-layer slurry storage tank is arranged above the slurry bell. The multi-layer slurry storage tank is composed of a plurality of tank bodies with different diameters. The tank body includes a grouting port and a columnar slurry outlet. The grouting port is arranged on the side wall or top of the tank body, and the columnar slurry outlet is arranged at the bottom of the tank body. The slurry bell is located directly below the columnar slurry outlet. This device causes slurries of different colors to gush out and mix together at the corresponding columnar slurry outlets, and then fall into the lower bell jar after mixing, or enter the overflow trough after mixing. Although a mixed color pattern with color differences can be obtained, it is well known that the water content of the slurry is about 30%. Even if it is dripped on the surface in a static state, it will begin to penetrate and mix with each other. What's more, by artificially cross-mixing at the outlet or mixing through the overflow trough, the colors obtained must have been over-mixed, and it is impossible to obtain a multi-color effect with distinct levels, nor to achieve the effect of fine control of color presentation. The color levels are flat and three-dimensional.

[0005] CN207156091U discloses a slurry sprinkling equipment with a natural slurry mixing effect, the slurry sprinkling equipment includes a frame, a slurry sprinkling device, a mixing device and a control device, the slurry sprinkling device includes a plurality of horizontal slurry discharge cylinders; the horizontal slurry discharge cylinders are installed on the spraying frame of the frame; a plurality of slurry nozzles are arranged at the bottom of the horizontal slurry discharge cylinders; a manipulator device is provided on the mixing device, the manipulator device includes a guide assembly, a sliding frame and a manipulator; the guide assembly includes a guide rail and a drive motor; the guide rail is mounted on the premixing platform of the mixing device and is perpendicular to the slurry flow direction of the premixing platform; the sliding frame is slidably connected to the guide rail through the pulley at its bottom; the top of the sliding frame is connected to the top of the manipulator and drives the sliding frame to move back and forth along the guide rail direction; the control device controls the slurry nozzle to spray the slurry on the premixing platform. Although this patent can theoretically produce a slurry layer pattern with a mixed effect, because the slurry passes through the pre-mixing platform below, when the slurry cannot quickly enter the lower shower position from the initial contact position, the entire slurry downstream process is a state of continuous diffusion and mixing. In addition, the large span and width of the pre-mixing platform make the different colors of slurries blend more clearly. Therefore, the overall three-dimensional effect of the pattern will be relatively flat, lacking the obvious controllable difference in color and the clear boundary of the pattern layering. In addition, it is well known in the industry that slurry has obvious sedimentation characteristics (the actual specific gravity is about 1.8g / cm3, which is much greater than water). The slurry spraying equipment has many slurry storage stations, and the workload during the cleaning process in actual production applications is large. In addition, the large span of the pre-mixing platform makes it easier for the slurry to settle. This will inevitably cause the color concentration to gradually decrease due to sedimentation, thereby causing the color concentration to change and failing to stably produce the expected stable effect of the batch.

[0006] In summary, the existing technical solutions need to be further improved, not to mention that there is no slurry spraying equipment that can obtain multi-color porcelain plates with flowing decorative effects. Summary of the Invention

[0007] In view of the shortcomings of existing porcelain plates in terms of color vividness, purity and saturation and the lack of flowing decorative effects, the present invention provides a slurry sprinkling equipment, which obtains porcelain plates with high color vividness, high purity, high concentration and flowing decorative effects through real-time color mixing and real-time use of dynamic sprinkling of multiple colors of slurry, thereby meeting people's diversified needs for decorative ceramic plates.

[0008] To achieve the above-mentioned purpose, in the first aspect of the present invention, the present invention provides a slurry pouring device for preparing colorful porcelain plates, which comprises, from bottom to top, a body conveying device, a slurry pouring device and a slurry dispensing device, wherein:

[0009] The slurry sprinkling device includes a slurry sprinkling bell and a slurry receiver, wherein the slurry receiver is located outside the slurry sprinkling bell and is used to receive the slurry injected by the slurry dispensing device, and the slurry sprinkling bell is used to receive the slurry overflowed from the slurry receiver;

[0010] The slurry dispensing device is located above the slurry pouring bell, and includes a main color slurry dispensing assembly and a matching color slurry dispensing assembly. The main color slurry dispensing assembly and the matching color slurry dispensing assembly are located above the slurry receiving device. The main color slurry dispensing assembly injects the main color slurry into the slurry receiving device, and the matching color slurry dispensing assembly is used to drop the matching color slurry onto the surface of the main color slurry when the main color slurry overflows from the slurry receiving device, so that the matching color slurry overflows together with the main color slurry.

[0011] The blank conveying device is located below the slurry spraying bell and is used to convey the blank. The slurry spraying bell sprays the overflowed slurry onto the surface of the blank.

[0012] During the slurry application process, the main color slurry is first injected into the slurry receiver from the main color slurry lower slurry assembly. When the liquid surface of the main color slurry in the slurry receiver contacts the end face of the slurry receiver, that is, when the main color slurry overflows from the slurry receiver, it begins to fall from the matching color slurry lower slurry assembly into the matching color slurry to the surface of the main color slurry. The main color slurry and the matching color slurry are unevenly mixed on the surface of the slurry bell as they flow downstream, and a slurry curtain is formed when they fall from the slurry bell, and are applied to the surface of the blank conveyed by the blank conveying device below, and a flowing pattern is generated on the surface of the blank, which is like the mutual blending of the natural growth process, vivid and natural.

[0013] Preferably, the sprinkling device further includes a sprinkling support frame, and the sprinkling bell is installed on the sprinkling support frame.

[0014] Preferably, the blank conveying device also includes a conveying bracket, a conveying device and a blank carrier, wherein the conveying device is installed on the conveying bracket, and the blank carrier is placed on the conveying device for carrying the blank, thereby avoiding the problem of displacement of the blank caused by the vibration generated by the conveying device due to direct contact between the blank and the conveying device.

[0015] Preferably, the pouring bell is in the shape of an upwardly protruding arc surface. The smooth arc surface of the pouring bell facilitates the smooth flow of the main color slurry and the matching color slurry, reduces the fluctuation of the slurry, and thus makes the formed pattern more vivid and natural.

[0016] Preferably, the number of the primary color slurry slurry assembly is one, and the number of the color matching slurry slurry assembly is at least one, which is specifically set according to the pattern requirements of the porcelain plate during actual production. The number of the primary color slurry slurry assembly can also be multiple if necessary.

[0017] Preferably, the main color slurry slurry assembly and the matching color slurry slurry assembly are located above the slurry receiver.

[0018] Preferably, the main color slurry feeding assembly is located on the side or bottom of the slurry receiving device to inject the main color slurry into the slurry receiving device.

[0019] In the present invention, there are no special requirements for the positions of the main color slurry dispensing assembly and the matching color slurry dispensing assembly, and both can be adjusted according to actual production needs.

[0020] Preferably, the slurry receiver is provided with an overflow notch. The slurry overflows from the overflow notch of the slurry receiver onto the surface of the shower bell, forming a slurry curtain. The size of the overflow notch is related to the width of the board being produced. When the board is wider, the overflow notch should be proportionally larger, and vice versa. In actual use, the size of the overflow notch should be set according to actual production conditions so that the formed slurry curtain can completely cover the board.

[0021] Preferably, when the slurry receiving device is provided with an overflow notch, the slurry outlet of the color matching slurry lowering assembly is located close to the overflow notch, and when the liquid level of the primary color slurry in the slurry receiving device contacts the overflow notch, i.e., when the primary color slurry overflows from the overflow notch, it begins to fall into the color matching slurry. When the primary color slurry and the color matching slurry are mixed on the surface of the pouring bell, the primary color slurry and the color matching slurry are unevenly mixed with each other, so that the resulting pattern has a more fluid feel.

[0022] Preferably, the overflow notch is in a smooth arc shape so that the overflowed slurry can form a larger slurry curtain.

[0023] Preferably, the slurry collector is cylindrical, but can also be in other shapes such as fan-shaped, annular, etc. The patterns produced by slurry collectors of different shapes are also different, thus making the patterns rich and varied.

[0024] Preferably, the slurry receiving device is located on the outer surface of the slurry bell. More preferably, the slurry receiving device is located directly above the slurry bell and is connected to or spaced apart from the slurry bell.

[0025] The slurry collector includes a main color grouting area and an overflow area that are interconnected. The main color slurry dispensing assembly injects the main color slurry into the main color grouting area, and the matching color slurry dispensing assembly drops the matching color slurry onto the surface of the main color slurry. The slurry collector is divided into different areas to better control the placement of the main color slurry and the matching color slurry, thereby controlling the mutual blending process of the main color slurry and the matching color slurry.

[0026] Preferably, the main color slurry filling assembly and the color matching slurry filling assembly are respectively located directly above the main color grouting area and the overflow area of the slurry receiver.

[0027] Preferably, the slurry outlet of the color matching slurry slurry lowering assembly is located close to the wall of the overflow area of the slurry receiver, and the color matching slurry falls into the slurry receiver without staying for a long time and overflows with the main color slurry.

[0028] Preferably, a partition plate is provided in the inner cavity of the slurry connector, and the partition plate divides the inner cavity of the slurry connector into two areas connected at the bottom, namely the main color grouting area and the overflow area.

[0029] Preferably, the depth of the partition plate in the slurry connector is one half to nine tenths of the depth of the inner cavity of the slurry connector. Most preferably, the depth of the partition plate in the slurry connector is at least 10-100 mm. When the depth of the partition plate in the slurry connector is within a certain range, the main color slurry will significantly reduce slurry fluctuations when injected.

[0030] The grouting equipment of the present invention is divided into a main color grouting area and an overflow area within the slurry receiving device. On the one hand, it ensures that the main color slurry is injected into the main color grouting area, thereby reducing the fluctuation of the slurry injection. On the other hand, the intermediate partition plate of a certain depth ensures that after the main color slurry is injected, it will pass through the connecting area below and present a circulation dynamic of overflowing upward and outward in the overflow area, making it difficult for the surface slurry to sink. This is also the principle that ensures that the matching color slurry only falls on the surface of the main color slurry and does not sink and mix. In addition, the intermediate partition plate specifically separates the overflow area to receive the matching color slurry. The dedicated overflow area ensures that the color slurry will not spread disorderly in the entire slurry receiving device and will not be retained for a long time, thus preventing overflow.

[0031] Preferably, the slurry receiver is embedded in the surface of the slurry bell, so as to achieve better sealing with the slurry bell.

[0032] Preferably, the slurry receiver is located at the top of the pouring bell, so that the main color slurry and the matching color slurry have more flow on the surface of the pouring bell, thereby making the slurries more mixed.

[0033] Preferably, a slurry blocking assembly is provided on the surface of the slurry bell cover, and the slurry blocking assembly includes an edge baffle and two slurry blocking plates. The two slurry blocking plates are arranged on the side wall of the slurry receiver along the direction from the upper edge to the lower edge of the slurry receiver, and the two slurry blocking plates form a slurry guiding area. The edge baffle is integrally protruded or connected to the slurry receiver to enclose the slurry overflowing from the slurry receiver and guide the overflowing slurry to the slurry guiding area.

[0034] Preferably, the side baffle is arranged on the upper end surface of the main color grouting area, the connecting plate is used to prevent the main color slurry from overflowing from the main color grouting area, and the upper end of the slurry baffle is arranged on the outer wall of the connection between the main color grouting area and the matching color grouting area of the slurry receiver.

[0035] Preferably, the angle between the extension lines of the two slurry retaining plates is A, where 0<A≤180°, and the two slurry retaining plates and the side baffles can be made of flexible materials. The bottom surfaces of the two slurry retaining plates are sealed and fitted with the surface of the slurry receiver, so that the slurry flows downward between the slurry retaining plates along the surface of the slurry receiver to the surface of the slurry bell cover.

[0036] Preferably, the lower surface of the slurry guard plate and the side guard plate is provided with a rubber layer to ensure close contact between the slurry guard assembly and the slurry receiver. In addition, the manufacturer can also change the direction of slurry falling according to the requirements of the pattern by simply removing the slurry guard assembly and installing it in the desired position.

[0037] Preferably, at least two slurry retaining strips are provided on the surface of the shower bell, extending from the upper edge to the lower edge of the shower bell, and made of a flexible material. The bottom surface of the slurry retaining strips is sealed and fitted with the surface of the shower bell, so that the slurry flows downward along the surface of the shower bell between the slurry retaining strips to form a vertically falling slurry curtain. Preferably, the slurry retaining strips extend out of the bottom edge of the shower bell, and more preferably, the slurry retaining strips are in the shape of long strips, with a cross section from wide to narrow, and the opposite sides of the two slurry retaining strips provided on the surface of the shower bell are narrow sides, and an arc-shaped surface is formed between the wide side and the narrow side. Further preferably, the bottom surface of the slurry retaining strips is provided with an adhesive layer, and the adhesive layer is made of traceless glue or butyl waterproof glue, and the slurry retaining strips are sealed and fitted with the surface of the shower bell through the adhesive layer.

[0038] Preferably, two slurry blocking bars are provided, and the two slurry blocking bars are connected to the two slurry blocking plates respectively.

[0039] More preferably, the upper end of the slurry blocking strip is connected to the lower end of the slurry blocking plate, or the upper end of the slurry blocking strip is connected to the inner side wall or the outer side wall of the slurry blocking plate.

[0040] Preferably, the slurry feeding device further comprises a slurry feeding bracket, and the slurry feeding bracket is used to install the main color slurry feeding component and the matching color slurry feeding component.

[0041] Preferably, the main color slurry slurry assembly and the matching color slurry slurry assembly can both move relative to the slurry receiver or move fixedly. The movement forms include circular reciprocating motion, linear reciprocating motion, rotational motion, etc. The specific movement form can be limited according to the pattern requirements in the actual production process. These different movement forms can produce porcelain plates with varying styles.

[0042] Based on the same inventive concept, in the second aspect of the present invention, the present invention provides a method for using the above-mentioned slurry sprinkling equipment. The porcelain panels produced by the slurry sprinkling equipment show different colors and decorative effects similar to different liquids flowing together, have a sense of liquid flow, and rise and fall like corrugations. The vivid and natural textures are rich and diverse, the styles are different, and the effects are clear and realistic, thereby increasing the diversity of the decorative effects, allowing the porcelain panels to be better used in the fields of furniture panels, table panels, decorative panels, etc., providing designers with more and better sources of materials.

[0043] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

[0044] A method for using the above-mentioned slurry spraying device for preparing colorful porcelain plates comprises the following steps:

[0045] Step (1) Material preparation: prepare the main color slurry and the matching color slurry, and place them in the main color slurry storage tank and the matching color slurry storage tank respectively;

[0046] Step (2) Slurry arrangement: connect the main color slurry storage tank with the main color slurry discharging assembly, and connect the matching color slurry storage tank with the matching color slurry discharging assembly.

[0047] Step (3) slurry spraying: the main color slurry flows from the main color slurry storage tank into the main color slurry lower slurry assembly and is injected into the slurry receiver located on the slurry bell of the slurry spraying equipment. Then, when the main color slurry overflows from the slurry receiver, the matching color slurry flows from the matching color slurry storage tank into the matching color slurry lower slurry assembly and falls onto the surface of the main color slurry. The main color slurry and the matching color slurry flow downstream along the surface of the slurry bell to form a slurry curtain, which is then sprayed onto the surface of the blank located below the slurry spraying equipment, wherein the blank moves relative to the slurry curtain.

[0048] The method of the present invention causes the slurry to diffuse and flow from a high point position to the low points around a certain area, resulting in a flow pattern in which the slurry blends but is not completely evenly mixed during the flow process, just like the mutual blending in the natural growth process. After being sprayed onto the green body, a flow pattern appears on the surface of the green body as if different liquids are flowing together.

[0049] Preferably, in the above method, the speed and amount of the primary color slurry injected into the slurry receiver are greater than the speed and amount of the matching color slurry falling in. The matching color slurry flows downstream along the side surface of the pouring bell together with the primary color slurry. When the injection speed and injection volume of the primary color slurry are greater than the injection speed and injection volume of the matching color slurry, the primary color slurry drives the matching color slurry to move downstream, and the area of the formed blending transition zone will be larger, which will have a more water-like flow effect.

[0050] Preferably, in the above method, the color matching slurry is added in a discontinuous manner, such as dropwise. When the color matching slurry is injected dropwise, the main color slurry and the color matching slurry blend more closely, and the blending transition zone formed on the surface of the green body layer is more vivid and natural.

[0051] Preferably, in the above method, the number of the color matching slurry dispensing assemblies is one or more, and the number of the color matching slurry storage tanks may also be one or more. The number of the color matching slurry storage tanks is determined by the pattern of the multi-colored slurry layer of the prepared porcelain plate. If there are multiple types of color matching slurries, then the number of color matching slurry storage tanks must be multiple. However, if there is only one type of color matching slurry, the number of color matching slurry storage tanks may also be set to multiple depending on the pattern requirements of the multi-colored slurry layer.

[0052] Preferably, in the preparation method, the color matching slurry falls into a position close to the wall of the slurry receiver, and the color matching slurry and the main color slurry have more flows on the surface of the pouring bell, and the degree of mutual blending is large.

[0053] Preferably, in the above method, when an overflow notch is provided on the slurry receiving device, the color matching slurry is injected when the liquid level of the main color slurry in the slurry receiving device contacts the overflow notch, i.e., when the main color slurry overflows from the slurry receiving device. The color matching slurry flows along the surface of the pouring bell along with the main color slurry to form a slurry curtain. The size of the overflow notch is related to the width of the plate to be produced. When the plate width is large, the overflow notch should be proportionally increased, and vice versa. In actual use, the size of the overflow notch should be set according to the actual production situation so that the formed slurry curtain can completely cover the plate.

[0054] Preferably, in the above method, when the slurry receiver is provided with an overflow notch, the color matching slurry is dropped into the position close to the overflow notch. When the color matching slurry drops into the slurry, the color matching slurry immediately flows along the surface of the pouring bell together with the main color slurry to form a slurry curtain. On the surface of the pouring bell, the main color slurry and the color matching slurry are unevenly mixed with each other due to the mixed flow, so that the resulting pattern has a more fluid feel.

[0055] Preferably, in the above method, the main color slurry slurry assembly and the matching color slurry slurry assembly in step (3) can move relative to the slurry receiver or can be fixed. If they move, the movement form can be one of circular reciprocating motion, linear reciprocating motion, rotational motion, etc., so that porcelain plates of various styles can be produced.

[0056] Preferably, in the above preparation method, the step (3) can be performed twice or more to spray the slurry to achieve the effect of stacking multiple layers of slurry.

[0057] During the use of the slurry spraying equipment of the present invention, the main color slurry and the matching color slurry are mixed with each other, and are sprayed onto the moving green body layer without uniform mixing. During the spraying process, a decorative effect similar to the flow of liquid is formed as the green body is transferred, so that the finally prepared porcelain plate presents different colors and flowing decorative effects, with undulating waves, rich and diverse textures, different styles, vivid and natural effects, clear and realistic, thereby increasing the diversity of decorative effects.

[0058] In addition, in the actual production process, the dripping speed, angle, dripping amount of the main color slurry and the matching color slurry, and the movement speed of the green body layer all affect the pattern, so the relevant parameters can be controlled according to actual needs to prepare porcelain plates with various styles.

[0059] Preferably, the color of the color matching slurry is one or more of white, red, black, yellow, orange, blue or other colors, and the number of colors of the color matching slurry is two or more. The color matching slurry of multiple colors and the main color slurry cooperate with each other to form a colorful porcelain plate.

[0060] Preferably, the color of the main color paste is white, red, black, yellow, orange, blue or other colors, which can be set according to actual conditions.

[0061] The porcelain plate prepared by the equipment of the present invention has the characteristics of high color brightness, high color purity and high color concentration. At the same time, the flowing blending transition zone formed by the main color slurry and the matching color slurry has a strong decorative effect and rich and diverse texture, which is very in line with the current diversified needs.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. The slurry sprinkling equipment of the present invention is a bell-type slurry sprinkling equipment, which occupies less space, and its stability and ease of operation are simpler, more reliable and stable than the sprinkling platforms disclosed in CN105819902A and CN207156091U. It is a bell-type slurry sprinkling equipment with an optimized design based on the conventional sprinkling of single-color slurry. A main color grouting area and an overflow area are designed in the slurry receiver, so that the main color slurry is injected from the main color grouting area and flows from bottom to top through the bottom of the partition plate to the overflow area, and then overflows to the surface of the sprinkling bell. In this process, the upsurging main color slurry supports the matching color slurry to the maximum extent and follows the main color slurry to completely overflow to the surface of the sprinkling bell. The equipment of the present invention utilizes the main color The overflow characteristic of the slurry that circulates upward and outward in real time in the overflow area reduces the degree of mutual mixing between the main color slurry and the matching color slurry in the overflow area, and the matching color slurry greatly reduces the degree of mutual mixing that sinks into the main color slurry, so that the original colors of different slurries can be retained to the greatest extent, and the levels of brightness, concentration and purity are distinct, forming a pattern feature in which different color areas blend delicately and softly, and different colors have distinct levels. This greatly improves the texture of the pattern, thereby avoiding the limitation of serious excessive mixing of various slurry colors in the pre-mixing platform in the existing technology, and effectively solving the problem of using slurry to form a color pattern without obtaining a distinct color effect.

[0064] 2. The slurry spraying equipment of the present invention solves the problem that the degree of mutual mixing and blending between different slurries on the existing intermixing platform is large, the pattern effect with good overall vividness cannot be highlighted, and the overall jumping and three-dimensional sense is not strong. In order to obtain brighter colors, the amount of colored slurry can only be increased, thereby increasing the amount of ceramic pigment used, resulting in increased production costs. The design of the equipment of the present invention can achieve the best effect with the minimum amount used, effectively controlling the additional input of pigments, greatly reducing costs, and thus achieving better cost performance. In addition, the slurry receiver is used to buffer and absorb the kinetic energy of the flowing slurry, so that the fluctuations between the main color slurry and the matching color slurry are well absorbed, and then the slurry flow is already stable when it overflows in the overflow area, which is more controllable in actual production and has more stable product quality.

[0065] 3. The present invention sets the color matching slurry to fall continuously or intermittently on the slurry surface of the slurry receiver that is filled with the main color slurry, and sets the parameters such as the frequency, position, angle, slurry amount, and time of falling, so that the different color slurries produce a flow pattern in which the slurries diffuse and flow from the high point to the low point positions around a certain area due to the conical surface structure of the slurry bell cover, and the slurry produces an exchanged but not completely uniform intermixing flow pattern, which is like the mutual blending of the natural growth process and can better present a natural and random effect. It solves the technical problem that the existing technology directly falls on the surface of the slurry bell cover, affecting the flow rate and morphology changes in the local area of the slurry curtain that has been formed on the surface of the slurry bell cover, thereby changing the uniformity of the entire falling slurry curtain, and then the slurry layer on the surface of the blank is uneven, which causes quality defects after firing.

[0066] 4. The slurry dispensing equipment of the present invention can be implemented on large-sized plate blanks with a thickness of 3 mm or more, thereby producing large-sized, ultra-thin, colored, wear-resistant ceramic plates, such as 800*2600*4.5 mm. This provides a wider range of material options for applications in wall and cabinet cladding, expanding market diversification. Furthermore, the method of the present invention can be used not only to prepare large-sized ceramic plates, but also small and medium-sized ceramic plates, and is not limited to ceramic plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 This is a schematic structural diagram of a slurry pouring device for preparing colorful porcelain plates according to an embodiment of the present invention;

[0068] Figure 2 This is a partial schematic diagram of the present invention using the slurry slurrying equipment for preparing colorful porcelain plates in Example 1;

[0069] Figure 3 yes Figure 2 A partial cross-sectional schematic diagram of part of the equipment for the showering process shown in FIG;

[0070] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0071] Figure 5 yes Figure 3 A top view of the showering process.

[0072] The technical features indicated by the reference numerals are as follows:

[0073] 1. Body conveying device; 11. Conveying bracket; 12. Conveying equipment; 13. Body carrier; 2. Slurry spraying device; 21. Slurry spraying support frame; 22. Slurry spraying bell; 23. Slurry receiver; 231. Separator; 232. Primary color grouting area; 233. Overflow area; 3. Slurry dispensing device; 31. Primary color slurry dispensing assembly; 32. Matching color slurry dispensing assembly; 33. Slurry dispensing bracket; 321. First matching color slurry dispensing assembly; 322. Second matching color slurry dispensing assembly; 3 23. slurry dispensing assembly for the third color matching slurry; 324. slurry dispensing assembly for the fourth color matching slurry; 4. slurry retaining assembly; 41. slurry retaining plate; 42. side baffle; 5. blank; 6. State diagram of the main color slurry flowing downstream in the pouring bell 22; 7. State of the matching slurry flowing downstream in the pouring bell 22; 8. State of the main color slurry and the matching slurry mixing with each other during the downstream flow in the pouring bell 22; 9. Pattern formed by the main color slurry and the matching slurry being poured onto the surface of the blank 5; 10. slurry retaining strip. DETAILED DESCRIPTION

[0074] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. However, the scope of protection claimed by the present invention is not limited to the following specific embodiments.

[0075] Example 1

[0076] refer to Figure 1-3 The present invention discloses a slurry pouring device for preparing colorful porcelain plates, which comprises a body conveying device 1, a slurry pouring device 2 and a slurry dispensing device 3 from bottom to top, wherein:

[0077] The slurry spraying device 2 includes a slurry spraying bell 22 and a slurry receiver 23, wherein the slurry receiver 23 is located outside the slurry spraying bell 22 and is used to receive the slurry injected by the slurry discharging device 3, and the slurry spraying bell 22 is used to receive the slurry overflowed from the slurry receiver 23;

[0078] The slurry dispensing device 3 is located above the slurry pouring bell 22, and includes a main color slurry dispensing component 31 and a color matching slurry dispensing component 32. The main color slurry dispensing component 31 injects the main color slurry into the slurry receiving device 23, and the color matching slurry dispensing component 32 is used to inject the color matching slurry onto the surface of the main color slurry when the main color slurry overflows from the slurry receiving device 23, so that the color matching slurry overflows together with the main color slurry.

[0079] The blank conveying device 1 is located below the slurry spraying bell 22 and is used to convey the blank 5 . The slurry spraying bell 22 sprays the overflowed slurry onto the surface of the blank 5 .

[0080] The slurry spraying device 2 further includes a slurry spraying support frame 21 , and the slurry spraying bell 22 is installed on the slurry spraying support frame 21 .

[0081] The blank conveying device 1 also includes a conveying bracket 11, a conveying device 12 and a blank carrier 13, wherein the conveying device 12 is installed on the conveying bracket 11, and the blank carrier 13 is placed on the conveying device 12 to carry the blank 5, avoiding the problem of displacement of the blank 5 caused by the vibration generated by the conveying device 12 due to direct contact between the blank 5 and the conveying device 12.

[0082] The slurry feeding device 3 further includes a slurry feeding bracket 33 , and the slurry feeding bracket 33 is used to install the main color slurry feeding component 32 and the matching color slurry feeding component 32 .

[0083] The slurry bell 22 is shaped as an upwardly protruding arc. The smooth arc surface of the slurry bell 22 facilitates the smooth flow of the primary and secondary color slurries, reducing slurry fluctuations and thus creating a more vivid and natural pattern. Of course, the slurry bell 22 can also have other shapes, such as a cone, as long as it allows the slurry to flow along its outer surface to form a slurry curtain.

[0084] In this embodiment, the number of the primary color slurry slurry assembly 31 is one, and the number of the matching color slurry slurry assemblies 32 is four, namely a first matching color slurry slurry assembly 321, a second matching color slurry slurry assembly 322, a third matching color slurry slurry assembly 323, and a fourth matching color slurry slurry assembly 324. These four matching color slurry slurry assemblies 32 are arranged in a straight line. In other words, the four matching color slurry slurry assemblies 32 are arranged on the same straight line. Furthermore, the number of the matching color slurry slurry assemblies 32 can also be one, two, three, or more than four, depending on the pattern requirements of the porcelain plate during actual production. Of course, the number of the primary color slurry slurry assemblies 31 can also be more than one if necessary. In addition, when there are multiple color matching slurry lower slurry components 32, the relative positions of these color matching slurry lower slurry components 32 can be set arbitrarily as needed. For example, when there are three color matching slurry lower slurry components 32, these color matching slurry lower slurry components 32 can be arranged in a triangle such as an equilateral triangle, a right triangle, etc., or can be arranged in a straight line.

[0085] In this embodiment, the primary color slurry dispensing assembly 31 and the matching color slurry dispensing assembly 32 are located above the slurry receiving device 23, and the slurry outlet of the primary color slurry dispensing assembly 31 is located within the inner cavity of the slurry receiving device 12. It should be further noted that the primary color slurry dispensing assembly 31 may also be located on the side or bottom of the slurry receiving device 23 to inject the primary color slurry into the slurry receiving device 23. In the present invention, there are no strict requirements for the location of the primary color slurry dispensing assembly 31 and the matching color slurry dispensing assembly 32.

[0086] Furthermore, the slurry receiver 23 includes a main color grouting area 232 and an overflow area 233, which are interconnected. The main color slurry dispensing assembly 31 injects the main color slurry into the main color grouting area 232, and the matching color slurry dispensing assembly 32 allows the matching color slurry to fall onto the surface of the main color slurry. Dividing the grouting device into different areas can better control the entry of the main color slurry and the matching color slurry, thereby controlling the intermixing process of the main color slurry and the matching color slurry. Furthermore, the main color slurry dispensing assembly 31 and the matching color slurry dispensing assembly 32 are located directly above the main color grouting area 232 and the overflow area 233 of the slurry receiver 23, respectively. The slurry outlet of the matching color slurry dispensing assembly 32 is located near the wall of the overflow area 233 of the slurry receiver 23. Once the matching color slurry is injected into the slurry receiver 23, it does not remain there for a long time and overflows with the main color slurry.

[0087] In this embodiment, a partition plate 231 is provided in the inner cavity of the slurry receiver 23 , and the partition plate 231 divides the inner cavity of the slurry receiver into two areas connected at the bottom, namely a main color grouting area 232 and an overflow area 233 .

[0088] It should be further explained that the depth of the partition plate 231 in the slurry collector 23 is one-half to nine-tenths of the depth of the inner cavity of the slurry collector 23. It is most preferred that the depth of the partition plate 231 in the slurry collector 23 is at least 10-100 mm. When the depth of the partition plate 231 in the slurry collector 23 is within a certain range, the main color slurry will significantly reduce the slurry fluctuation when it is injected.

[0089] In this embodiment, the main color slurry slurry assembly 31 and the matching color slurry slurry assembly 32 are respectively located directly above the main color grouting area 232 and the overflow area 233 of the slurry connector 23. However, the main color slurry slurry assembly 31 and the matching color slurry slurry assembly 32 do not necessarily have to be located directly above the main color grouting area 232 and the overflow area 233 of the slurry connector 23. Instead, the slurry outlets of the main color slurry slurry assembly 31 and the matching color slurry slurry assembly 32 can be located directly above the main color grouting area 232 and the overflow area 233 of the slurry connector 23, respectively, depending on the situation, so that the main color slurry and the matching color slurry can be accurately injected into the main color grouting area 232 and the overflow area 233 of the slurry connector 23.

[0090] Furthermore, the slurry outlet of the color matching slurry lower slurry assembly 32 is located close to the wall of the overflow area 233 of the slurry receiver 23. The color matching slurry falls into the slurry receiver 23 and does not stay for a long time, but overflows with the main color slurry.

[0091] In this embodiment, the slurry collector 23 is cylindrical and is located on the top of the slurry bell 22. This will allow the main color slurry and the color matching slurry to have more flow on the surface of the slurry bell 22, thereby increasing the degree of slurry mixing. However, the slurry collector 23 can also be in other shapes such as fan-shaped, ring-shaped, etc. The patterns produced by slurry collectors 23 of different shapes are also different, thus making the patterns rich and diverse. Figure 1 As shown, the slurry receiver 23 is embedded in the surface of the slurry bell 22, so that it can better seal with the slurry bell 22. However, in fact, as long as the slurry in the slurry receiver 23 falls onto the surface of the slurry bell 22, it is sufficient for the slurry receiver 23 to be located directly above the slurry bell 22, connected to it, or spaced apart from it.

[0092] In this embodiment, a slurry retaining assembly 4 is further provided on the surface of the slurry shower bell 22. The slurry retaining assembly includes two slurry retaining plates 41 and a side baffle 42. The two slurry retaining plates 41 are arranged on the side walls of the slurry receiver 23 along the direction from the upper edge to the lower edge. The two slurry retaining plates 41 form a slurry guide area. The side baffle 42 is connected to the slurry receiver 23 to enclose slurry overflowing from the slurry receiver 23 and guide the overflowing slurry to the slurry guide area. It is further noted that the side baffle 42 can be integrally protruded from the slurry receiver 23.

[0093] To further illustrate, the angle between the extension lines of the two slurry shields 41 is A, where 0<A≤180°. The slurry shields 41 are similar to the surface of the slurry connector 23 so that the slurry shields 41 are installed on the surface of the slurry connector 23 in a very good fit. In this embodiment, the slurry baffle 41 is set at the junction of the main color grouting area 232 and the overflow area 233, that is, the position of the partition plate 231, from the upper edge to the lower edge of the slurry receiver 23, and the side baffle 42 is installed on the end face of the main color grouting area 232 and is connected to the two slurry baffles 41 at the junction of the main color grouting area 232 and the overflow area 233. If it is set in this way, the end face of the main color grouting area 232 is equivalent to being raised, and the end face of the overflow area 233 is slightly lower than the end face of the main color grouting area 232 and forms an overflow gap together with the side baffle 42, so that the main color slurry and the matching color slurry overflow from the overflow gap, and form a slurry curtain on the surface of the slurry bell 22 and are sprayed onto the blank 5. Furthermore, the two slurry guards 41 and the side baffles 42 connecting them can be made of flexible materials, ensuring that the bottom surfaces of the two slurry guards 41 are sealed and in contact with the surface of the slurry receiver 23, allowing the slurry to flow downward between the slurry guards 41 along the surface of the slurry receiver 23, forming a vertically falling slurry curtain. Furthermore, the lower surfaces of the slurry guards 41 and the side baffles 42 are provided with a rubber layer to ensure close contact between the slurry guard assembly 4 and the slurry receiver 23. Furthermore, manufacturers can also change the direction of slurry drop according to the requirements of the design by simply removing the slurry guard assembly 4 and installing it in the desired location.

[0094] Two slurry retaining strips 10 are provided on the surface of the pouring bell jar 22, which extend from the upper edge to the lower edge of the pouring bell jar 22 and are made of flexible material. The bottom surface of the slurry retaining strips 10 is sealed and fitted with the surface of the pouring bell jar 22, so that the slurry flows downward along the surface of the pouring bell jar 22 between the slurry retaining strips to form a vertically falling slurry curtain. Furthermore, the slurry retaining strips extend out of the bottom edge of the pouring bell jar 22. Furthermore, the slurry retaining strips are in the shape of long strips, and the cross section of the slurry retaining strips is from wide to narrow. The opposite sides of the two slurry retaining strips provided on the surface of the pouring bell jar 22 are narrow sides, and the arc surface formed between the wide side and the narrow side is further provided. Furthermore, the bottom surface of the slurry retaining strips is provided with an adhesive layer, and the adhesive layer is made of traceless glue or butyl waterproof glue. The slurry retaining strips are sealed and attached to the surface of the pouring bell jar 22 through the adhesive layer. In this embodiment, two slurry blocking strips 10 are respectively connected to the two slurry blocking plates 41, and the upper end of the slurry blocking strip 10 is connected to the lower end of the slurry blocking plate 41. Of course, the upper end of the slurry blocking strip 10 can also be connected to the inner wall or outer wall of the slurry blocking plate 41.

[0095] It should be further explained that the slurry receiver 23 may be provided with an overflow notch (not shown). The overflow notch can be any shape with a certain bottom width, such as a smooth arc. The slurry overflows from the overflow notch of the slurry receiver 23 onto the surface of the shower bell 22, forming a slurry curtain downstream. The size of the overflow notch is related to the width of the board being produced. For wider boards, the overflow notch should be proportionally larger, and vice versa. In actual use, the size of the overflow notch should be set according to actual production conditions so that the resulting slurry curtain completely covers the board.

[0096] When the slurry receiving device 23 is provided with an overflow notch, the slurry outlet of the color matching slurry lowering assembly 32 is located close to the overflow notch, and the color matching slurry begins to be injected when the liquid level of the main color slurry in the slurry receiving device 23 contacts the overflow notch. When the main color slurry and the color matching slurry are mixed on the surface of the pouring bell jar 22, they are unevenly mixed with each other, so that the pattern produced has a more fluid feel.

[0097] It should be further explained that the main color slurry slurry assembly 31 and the matching color slurry slurry assembly 32 can move relative to the slurry receiver 23 or be fixed, such as circular reciprocating motion, linear reciprocating motion, rotational motion, etc. The specific movement mode can be limited according to the pattern requirements in the actual production process. The differences in these movement modes can produce porcelain panels with varying styles.

[0098] refer to Figure 2-5 The slurry is then poured into the slurry container 23 and the color slurry is then poured into the slurry container 23. The slurry is then poured into the slurry container 23 and the color slurry is then poured into the slurry container 23. Figure 3 and 4As shown, it is injected into the slurry receiver 22, flows into the overflow area 233 through the connecting area at the bottom of the partition plate 231, and in the process of continuous upwelling, drives the color matching slurry to flow out of the slurry receiver 23, falls on the surface of the slurry bell 22 and forms a slurry curtain in the downstream. The figure numeral 6 shows the state of the main color slurry flowing downstream in the slurry bell 22, the figure numeral 7 shows the state of the color matching slurry flowing downstream in the slurry bell 22, the figure numeral 8 shows the state of the main color slurry and the color matching slurry mixing in the process of flowing downstream in the slurry bell 22, and the figure numeral 9 shows the pattern formed by the main color slurry and the color matching slurry being poured onto the surface of the blank 5. The pattern is like the trace formed by the flow of liquid, naturally blending, and has an unexpected beauty.

[0099] Example 2

[0100] Based on the slurry dispensing device for preparing colorful porcelain plates of the present invention, the present invention also discloses a method for using the slurry dispensing device for preparing colorful porcelain plates, which comprises the following steps:

[0101] (1) Material preparation: prepare the main color slurry and the matching color slurry, and place them in the main color slurry storage tank and the matching color slurry storage tank respectively;

[0102] (2) Slurry arrangement: connect the main color slurry storage tank to the main color slurry slurry lower assembly 31, and connect the matching color slurry storage tank to the matching color slurry lower assembly 32.

[0103] (3) Slurry spraying: the main color slurry flows from the main color slurry storage tank into the main color slurry lower slurry assembly 31 and is injected into the slurry receiver 23 located on the slurry bell 33 of the slurry spraying equipment. Then, when the main color slurry overflows from the slurry receiver, the matching color slurry flows from the matching color slurry storage tank into the matching color slurry lower slurry assembly and is injected onto the surface of the main color slurry. The main color slurry and the matching color slurry flow downstream along the surface of the slurry bell 22 to form a slurry curtain, which is then sprayed onto the surface of the blank 5 located below the slurry spraying equipment, wherein the blank 5 moves relative to the slurry curtain.

[0104] In this method, the slurry is diffused and flows from a high point to the low points around a certain area, resulting in a flowing pattern that blends but is not completely evenly mixed during the flow, just like the mutual blending in the natural growth process. After being sprayed on the green body, a pattern like flowing water appears on the surface of the green body.

[0105] It should be further explained that, in the above method, the speed and amount of the main color slurry injected into the slurry receiver 23 are greater than the speed and amount of the color matching slurry injected. The color matching slurry flows downstream along the side surface of the slurry bell together with the main color slurry. When the grouting speed and grouting amount of the main color slurry are greater than the grouting speed and grouting amount of the color matching slurry, the main color slurry drives the color matching slurry to move downstream, and the area occupied by the formed blending transition zone will be larger, and it will have a more water-like flow. The color matching slurry is injected in a discontinuous manner, such as a drop-by-drop injection method. When the color matching slurry is injected drop by drop, the main color slurry and the color matching slurry blend with each other to a greater extent, and the blending transition zone formed on the surface of the green body layer is more vivid and natural.

[0106] The injection position of the color matching slurry is close to the wall of the slurry receiving device 23. The color matching slurry and the main color slurry have more flows on the surface of the pouring bell jar and the degree of mutual blending is large.

[0107] When the slurry receiving device 23 is provided with an overflow notch, the color matching slurry begins to be injected when the liquid level of the main color slurry in the slurry receiving device 23 contacts the overflow notch, i.e., when the main color slurry overflows from the slurry receiving device. The color matching slurry flows downstream along the surface of the pouring bell along with the main color slurry to form a slurry curtain. The size of the overflow notch is related to the width of the produced board. When the board width is large, the overflow notch should be proportionally increased, and vice versa. In actual use, the size of the overflow notch should be set according to the actual production situation so that the formed slurry curtain can completely cover the board.

[0108] The main color slurry slurry assembly 31 and the matching color slurry slurry assembly 32 in step (3) can both move relative to the slurry receiver 23 or be fixed, such as circular reciprocating motion, linear reciprocating motion, rotational motion, etc., so that porcelain plates of various styles can be produced.

[0109] The step (3) can be performed twice or more times to spray the slurry to achieve the effect of multi-layer slurry superposition.

[0110] During the use of the slurry spraying equipment of the present invention, the main color slurry and the matching color slurry are mixed with each other, and are sprayed onto the moving green body layer without uniform mixing. During the spraying process, a decorative effect similar to the flow of liquid is formed as the green body is transferred, so that the finally prepared porcelain plate presents a decorative effect of different colors and flow, with undulating waves, rich and diverse textures, different styles, vivid and natural effects, clear and realistic, thereby increasing the diversity of decorative effects.

[0111] In addition, in the actual production process, the dripping speed, angle, dripping amount of the main color slurry and the matching color slurry, and the movement speed of the green body layer all affect the pattern. Therefore, the relevant parameters can be controlled according to actual needs to prepare porcelain plates with diverse styles.

[0112] In addition, regarding the colors of the matching color paste and the primary color paste, the color of the matching color paste is one or more of white, red, black, yellow, orange, blue, or other colors, and the number of colors of the matching color paste is two or more. The matching color pastes of multiple colors cooperate with the primary color paste to form a multicolored porcelain plate. The color of the primary color paste is one of white, red, black, yellow, orange, blue, or other colors, which is set according to actual conditions.

[0113] The porcelain plate prepared by the method of the present invention and the equipment of the present invention has the characteristics of high color brightness, high color purity and high color concentration. At the same time, the flowing blending transition zone formed by the main color slurry and the matching color slurry has a strong decorative effect and rich and diverse textures, which is very in line with the current diversified needs.

[0114] Example 3

[0115] In this embodiment, using Figure 1 The slurry spraying equipment shown is used to prepare colorful porcelain plates with a size of 800mm*2600mm*4.6mm. The specific preparation process is as follows:

[0116] (1) Select kaolin, feldspar, quartz and other raw materials for the blank and various color slurries;

[0117] First, prepare the green body layer. Weigh the following raw materials by weight: 2 parts of ultra-white sand, 22.5 parts of sodium aluminum sand, 6 parts of medium-temperature aluminum sand, 11 parts of potassium-sodium water abrasive, 26.5 parts of ball clay, 4.5 parts of bauxite, 3 parts of diopside, 4 parts of pyrophyllite, 2 parts of high clay, 10 parts of ultra-white stone powder, 8 parts of clay, 1 part of ultra-white clay, 0.3 parts of debonding agent, 0.3 parts of alkaline water agent, and 0.3 parts of reinforcing agent. Put the above raw materials and water into a ball mill in a ratio of 3:1 and mill them. After ball milling, the green body material is obtained by spraying the powder. The moisture content of the powder is 6%, and the fineness passing through a 100-mesh sieve is <4%. The chemical composition of the green body material is 65.11% silicon dioxide, 21.92% aluminum oxide, 1.92% potassium oxide, 3.09% sodium oxide, 1.04% calcium oxide, 0.81% magnesium oxide, 0.22% titanium dioxide, 0.52% iron oxide, and the rest is loss on ignition and trace impurities; wherein, the components of the clay material in this embodiment, by weight percentage, include 21% aluminum oxide, 65% silicon oxide, trace elements and 14% loss on ignition; the debonding agent is debonding agent Duramax D-3019; the alkaline water agent is sodium silicate; and the reinforcing agent is vinyl acetate.

[0118] Then, prepare a white primary color slurry by weighing the following raw materials: 38 parts of water-abrasive, 2 parts of bentonite, 5.8 parts of diopside, 7.2 parts of potassium stone powder, 8.2 parts of sodium aluminum sand, 5 parts of pyrophyllite, 2.8 parts of selected talc particles, 2 parts of zirconium silicate, 0.06 parts of sodium carboxymethyl cellulose, and 0.15 parts of sodium tripolyphosphate. The above raw materials and water are placed in a ball mill at a mass ratio of 3:1 and milled to form a white primary color slurry with a moisture content of 28% and a specific gravity of 1.8 g / cm 3 , flow rate is 50s, fineness is less than 1% through 325 mesh sieve; wherein, in this embodiment, the composition of the water abrasive is 70% silicon oxide, 15% aluminum oxide, 7% potassium oxide, and 8% sodium oxide in weight percentage.

[0119] Subsequently, a color matching slurry was prepared by adding 1% yellow pigment to the white main color slurry to prepare a yellow slurry, and adding 1% red pigment to the base slurry to prepare a red slurry. The composition of the color slurry to be applied was set to be 90% base slurry as the main color slurry, 5% yellow slurry and 5% red slurry as the color matching ingredients;

[0120] Finally, the main color slurry and the matching color slurry are placed in the main color slurry storage tank and two matching color slurry storage tanks respectively.

[0121] (2) Preparation of green bodies: The green body material prepared in step (1) is conveyed to a forming press and pressed into a green body, wherein the green body has a thickness of 4.4 mm, a length of 2600 mm, and a width of 800 mm. After pressing and forming, the green body is conveyed to a drying kiln for drying, wherein the drying kiln temperature is 180°C, the drying time is 70 minutes, and the moisture content of the green body after drying is 0.3%.

[0122] (3) Slurry arrangement: connect the main color slurry storage tank with the main color slurry lower slurry assembly, and connect the color matching slurry storage tank with the color matching slurry lower slurry assembly 32, wherein the first color matching slurry lower slurry assembly 321 and the third color matching slurry lower slurry assembly 323 are connected to the color matching slurry storage tank of the yellow color matching slurry, and the second color matching slurry lower slurry assembly 322 and the fourth color matching slurry lower slurry assembly 324 are connected to the color matching slurry storage tank of the red color matching slurry.

[0123] Step (4), slurry spraying: the main color slurry flows from the main color slurry storage tank into the main color slurry slurry lower assembly and is injected into the main color grouting 232 of the slurry receiving device 23 on the slurry bell 33 of the slurry spraying equipment. In this process, due to the continuous slurry discharge power, the white slurry of the main color grouting 232 flows into the overflow area 233 from the connecting area under the partition plate, and maintains a flow state from bottom to top in the entire overflow area 233. When the liquid surface of the main color slurry in the slurry receiving device 23 contacts the end face of the slurry receiving device 23, the main color slurry starts to flow from the first color slurry lower assembly 321 and the third color slurry lower assembly 323 to the second color slurry lower assembly The yellow and red matching slurries in the color matching slurry lowering assembly 322 and the fourth matching slurry lowering assembly 324 are injected into the white slurry in the overflow area of the slurry receiver 23 in a discontinuous dripping manner, and overflow together with the white main color slurry. When on the surface of the grouting bell 33, the main color slurry and the matching slurry are unevenly mixed along the downstream, and a slurry curtain is formed when the grouting bell 33 falls, which is completely sprayed on the surface of the green body 5 conveyed by the green body conveying equipment under the grouting bell 33. The weight ratio of the injected white slurry, yellow slurry and red slurry is 9:0.5:0.5, and the amount of slurry sprayed on the brick surface is 830g / m 2 .

[0124] (5) Secondary drying: The slurry-sprayed green body is transported to a drying kiln at 180°C and dried for 25 minutes.

[0125] (6) Firing: The secondary dried body is placed in a kiln at 1150°C and fired for 60 minutes to obtain a colorful porcelain plate.

[0126] The ceramic panels prepared in this embodiment were tested for performance according to the requirements of GB / T 23266-2009, GB / T 3810.14-2016, and GB6566-2010. Their performance met the national standards for commercially available panels, including a water absorption rate of less than 0.05%, a modulus of rupture of 45 MPa, a pollution resistance rating of Level 5, and radioactivity indicators meeting the requirements for Class A decorative materials in GB 6566-2010, thus limiting their use. Furthermore, the prepared ceramic panels exhibited rich, vivid, and natural textures, with high color vividness, purity, and concentration. The patterns had a decorative effect reminiscent of flowing liquids, and the transitions between the different color pastes blended into the blanks were natural, creating a seamless, integrated pattern with an unexpected aesthetic that perfectly suited the diverse style requirements of modern young people.

[0127] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the invention.

Claims

1. A slurry pouring device for preparing colorful porcelain plates, characterized in that: From bottom to top, it includes the body conveying device, the slurry showering device and the slurry feeding device, among which, The slurry sprinkling device includes a slurry sprinkling bell and a slurry receiver, wherein the slurry receiver is located outside the slurry sprinkling bell and is used to receive the slurry injected by the slurry discharging device, and the slurry sprinkling bell is used to receive the slurry overflowed from the slurry receiver; The slurry dispensing device is located above the slurry pouring bell, and includes a main color slurry dispensing assembly and a color matching slurry dispensing assembly. The main color slurry dispensing assembly injects the main color slurry into the slurry receiving device, and the color matching slurry dispensing assembly is used to drop the color matching slurry onto the surface of the main color slurry when the main color slurry overflows from the slurry receiving device, so that the color matching slurry overflows together with the main color slurry. The blank conveying device is located below the slurry spraying bell and is used to convey the blank. The slurry spraying bell sprays the overflowed slurry onto the surface of the blank. The slurry receiving device includes a main color grouting area and an overflow area that are interconnected; the main color slurry dispensing assembly injects the main color slurry into the main color grouting area, and the matching color slurry dispensing assembly drops the matching color slurry onto the surface of the main color slurry in the overflow area; A partition plate is provided in the inner cavity of the slurry connector, and the partition plate divides the inner cavity of the slurry connector into two areas with connected bottoms, namely a main color grouting area and an overflow area.

2. The slurry spraying equipment according to claim 1, characterized in that: The blank conveying device further comprises a conveying support, a conveying device and a blank carrier, wherein the conveying device is mounted on the conveying support, and the blank carrier is placed on the conveying device for carrying the blank.

3. The slurry spraying equipment according to claim 1 or 2, characterized in that: The number of the main color slurry slurry assembly is one, and the number of the matching color slurry slurry assembly is at least one.

4. The slurry spraying equipment according to claim 1, characterized in that: A slurry blocking assembly is provided on the surface of the slurry connector, and the slurry blocking assembly includes an edge baffle and two slurry blocking plates. The two slurry blocking plates are arranged on the side wall of the slurry connector along the direction from the upper edge to the lower edge of the slurry connector, and the two slurry blocking plates form a slurry guiding area. The edge baffle is integrally protruded or connected to the slurry connector to enclose the slurry overflowing from the slurry connector and guide the overflowing slurry to the slurry guiding area.

5. The slurry spraying equipment according to claim 1 or 4, characterized in that: At least two slurry blocking strips are provided on the surface of the slurry pouring bell jar, and the slurry blocking strips extend from the upper edge to the lower edge of the slurry pouring bell jar.

6. The slurry spraying equipment according to claim 5, characterized in that: Two slurry-blocking bars are provided, and the two slurry-blocking bars are connected to the two slurry-blocking plates respectively.

7. A method for using the slurry dispensing device for preparing colorful porcelain plates according to any one of claims 1 to 6, characterized in that: The steps include: Step 1: Material preparation: prepare the main color slurry and the matching color slurry, and place them in the main color slurry storage tank and the matching color slurry storage tank respectively; Step 2: Slurry arrangement: connect the main color slurry storage tank with the main color slurry discharging assembly, and connect the matching color slurry storage tank with the matching color slurry discharging assembly; Step three: slurry spraying: the main color slurry flows from the main color slurry storage tank into the main color slurry lower slurry assembly and is injected into the slurry receiver located on the slurry bell of the slurry spraying equipment. Then, when the main color slurry overflows from the slurry receiver, the matching color slurry flows from the matching color slurry storage tank into the matching color slurry lower slurry assembly and is injected onto the surface of the main color slurry. The main color slurry and the matching color slurry flow downstream along the surface of the slurry bell to form a slurry curtain, which is then sprayed onto the surface of the blank located below the slurry spraying equipment, wherein the blank moves relative to the slurry curtain.

8. The method according to claim 7, characterized in that The main color slurry dispensing assembly and the color matching slurry dispensing assembly in step 3 can move relative to the slurry receiving device or can be fixed.

Images