Ceramic tile with back patterns
By designing multiple grooves on the back of the tile and changing them to rounded corners, the problem of tiles being prone to cracking during pressing is solved, the bonding strength and stability are improved, and the service life of the tile is extended.
Patent Information
- Application Number
- CN202421506205.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the prior art, ceramic tiles with back patterns are prone to cracking when pressed, which affects the flatness and service life of the product.
A ceramic tile with back pattern is designed, with multiple convex strips on the back side surrounding it to form multiple grooves, the sharp corner of the groove wall is changed to rounded corners, and multiple concave patterns or concave patterns are provided at the bottom of the groove to increase the bonding area.
The rounded corner treatment avoids stress concentration, reduces cracks, and improves bonding strength through embossed or concave lines, enhancing the stability and service life of the ceramic tile.
Smart Images
Figure CN222782329U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ceramic tile preparation, in particular to a ceramic tile with back patterns. Background Art
[0002] At present, the traditional forming process of ceramic tiles is mainly to press the powder through a press to form the final product. In order to improve the bonding area and stability of ceramic tiles during paving, various raised patterns are usually set on the back of the tiles, namely back patterns.
[0003] Although the back pattern increases the bonding area of the tile, it also brings other disadvantages. The height difference formed by the back pattern will lead to uneven density of the tile body during pressing, affecting the shrinkage rate during firing, and further affecting the flatness of the tile surface. In severe cases, the bottom will be transparent, affecting the appearance and use. There are also specific requirements for the height of the back pattern protrusion. Too high a protrusion will aggravate the density difference and reduce product quality. Too low a protrusion will weaken the bonding strength between the tile and the adhesive material and increase the risk of falling off.
[0004] In addition, the setting of the back pattern will form multiple corners. The sharp corners formed by the convex back pattern will often crack during pressing due to stress concentration, and cracks will form after firing.
[0005] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content
[0006] In view of the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a ceramic tile with a back pattern, aiming to solve the problem that the ceramic tile with a back pattern in the prior art is prone to cracking during pressing.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A ceramic tile with back patterns, wherein a plurality of convex strips are arranged on the back of the ceramic tile, and a plurality of the convex strips are enclosed to form a plurality of grooves, wherein the acute corners of the groove walls of the grooves are rounded; and a plurality of convex or concave patterns are arranged on the bottom of the grooves.
[0009] A ceramic tile with back patterns, wherein a plurality of groups of protrusions are arranged on the back of the ceramic tile, and concave cavities are arranged on the protrusions; each group of protrusions includes at least two protrusions.
[0010] A ceramic tile with back patterns, wherein the cavity is a trapezoidal cavity, and the opening of the cavity faces away from the front side of the ceramic tile.
[0011] A ceramic tile with back patterns, wherein a plurality of groups of protrusions are arranged on the right part of the back of the ceramic tile and along the length direction of the right side of the ceramic tile.
[0012] A ceramic tile with a back pattern, wherein the plurality of grooves include a plurality of first groove bodies, a plurality of second groove bodies and a plurality of third groove bodies; the depth of the first groove body is greater than the depth of the second groove body; the depth of the second groove body is greater than the depth of the third groove body; the plurality of the first groove bodies are arranged at the upper left corner of the ceramic tile; the plurality of the third groove bodies are arranged at the lower right corner of the ceramic tile; the plurality of the second groove bodies are arranged between the plurality of the first groove bodies and the plurality of the third groove bodies, and are distributed along the diagonal line from the upper right corner to the lower left corner of the ceramic tile.
[0013] A ceramic tile with back patterns, wherein the depth of the first groove body is 3-3.1 mm, the depth of the second groove body is 2.8-2.9 mm, and the depth of the third groove body is 2.6-2.7 mm; the height or depth of the convex or concave patterns is 0.2-0.3 mm.
[0014] A ceramic tile with back patterns, wherein the groove is a quadrilateral groove.
[0015] A ceramic tile with back patterns, wherein the grooves are parallelograms; and a plurality of the grooves are staggered.
[0016] Beneficial effect: The utility model provides a ceramic tile with back patterns, wherein a plurality of grooves are formed on the back of the ceramic tile. By setting the sharp corners of the groove walls as rounded corners, stress concentration at the sharp corners and the occurrence of cracks can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the structure of a tile with back pattern Figure 1 .
[0018] Figure 2 for Figure 1 Enlarged view at A.
[0019] Figure 3 Schematic diagram of the structure of a tile with back pattern Figure 2 .
[0020] Explanation of the main component symbols: 1- convex strip, 2- groove, 3- fillet, 4- cut corner, 5- bump, 51- cavity, 21- first groove body, 22- second groove body, 23- third groove body, 6- concave pattern. DETAILED DESCRIPTION
[0021] The utility model provides a ceramic tile with back patterns. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0022] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.
[0023] See also Figure 1 The utility model provides a ceramic tile with back patterns, wherein a plurality of convex stripes 1 are arranged on the back of the ceramic tile, and a plurality of the convex stripes 1 are enclosed to form a plurality of grooves 2, wherein the acute angle corners of the groove wall of the groove 2 are rounded 3; and a plurality of convex or concave patterns 6 are arranged on the bottom of the groove 2. The acute angle part is rounded 3 to avoid stress concentration at the acute angle and cracks. The arrangement of the convex or concave patterns 6 can increase the bonding ability between the back of the ceramic tile and the adhesive.
[0024] Preferably, the height or depth of the convex or concave pattern 6 is 0.2-0.3 mm, which can ensure the strength of the brick while maximizing the bonding ability.
[0025] The convex or concave patterns 6 may be wavy patterns.
[0026] See also Figure 2 In a preferred embodiment, a cut angle 4 is provided at the corner of the protruding portion of the convex strip 1. Specifically, the cut angle 4 may be 45 degrees. Figure 2 In the embodiment, the edge of the convex strip 1 forms a protrusion, and by forming a chamfer 4 at the left and right ends of the protrusion, it can be made closer to an arc, so that the pressure can be more evenly dispersed on the brick body, avoiding excessive concentration of pressure resulting in uneven density on the green body, resulting in uneven shrinkage and cracking during firing.
[0027] By designing the cut corner 4, not only the adhesion of the green body can be improved, but also the stability of the green body during the firing process can be increased.
[0028] Preferably, the four sides are also provided with a first inclined surface, and the angle between the first inclined surface and the horizontal plane is 15°, so that the mold can be quickly demolded during the pressing process without sticking to the mold.
[0029] See also Figure 1In a preferred embodiment, the back of the tile is further provided with a plurality of groups of protrusions 5, and the protrusions 5 are provided with concave cavities 51; each group of protrusions 5 includes at least two protrusions 5. The protrusions 5 and the concave cavities 51 can increase the contact area during paving and improve the grip.
[0030] In a preferred embodiment, the cavity 51 is a trapezoidal cavity 51, and the opening of the cavity 51 faces away from the front side of the tile.
[0031] Preferably, the protrusion 5 is a cuboid with a length of 14-16 mm and a width of 4-6 mm, and the thickness of the cuboid is the same as the thickness of the protrusion. A second inclined plane is arranged in the trapezoidal cavity 51, and the angle between the second inclined plane and the horizontal plane is 60 degrees.
[0032] See also Figure 1 In a preferred embodiment, a plurality of groups of protrusions 5 are arranged on the right part of the back of the tile and along the length direction of the right side of the tile.
[0033] The bump 5 not only increases the contact area, but also acts as a counterweight.
[0034] See also Figure 3 In one embodiment, the plurality of grooves 2 include a plurality of first grooves 21, a plurality of second grooves 22, and a plurality of third grooves 23; the depth of the first grooves 21 is greater than the depth of the second grooves 22; the depth of the second grooves 22 is greater than the depth of the third grooves 23; the plurality of first grooves 21 are arranged at the upper left corner of the tile; the plurality of third grooves 23 are arranged at the lower right corner of the tile; the plurality of second grooves 22 are arranged between the plurality of first grooves 21 and the plurality of third grooves 23, and are distributed along the diagonal line from the upper right corner to the lower left corner of the tile. Preferably, the depth of the first grooves 21 is 3 to 3.1 mm, the depth of the second grooves 22 is 2.8 to 2.9 mm, and the depth of the third grooves 23 is 2.6 to 2.7 mm.
[0035] The grooves 2 are distributed and arranged as above, and further coordinated with the arrangement of the protrusions 5, which can effectively ensure that the overall center of gravity of the brick body is at the center, which is conducive to smooth demoulding and paving.
[0036] In a preferred embodiment, the groove 2 is a quadrilateral groove. The quadrilateral may also be a rectangle, a rhombus, or other forms of parallelograms to ensure effective adhesion in different directions and angles. Multiple grooves 2 may be closely arranged on the back of the green sheet in a certain arrangement to form multiple groups of textures, such as grooves 2 in the same column as a group. These texture groups may be arranged in a staggered manner to form a richer texture pattern, and the overall center of gravity and adhesion strength may be adjusted.
[0037] In a preferred embodiment, the groove 2 is a parallelogram; a plurality of the grooves 2 are staggered.
[0038] In one embodiment, two adjacent rows of parallelogram grooves 2 are staggered and arranged in a mirror-image orientation, and the parallelogram grooves 2 in two directions are staggered to form a texture pattern like rice ears.
[0039] The size and spacing of the grooves 2 of the utility model can be adjusted according to actual production in tiles of different specifications. Generally speaking, the spacing between the grooves 2 of the smaller-sized bricks is smaller. The protrusions 5 act as counterweights, and the number of the protrusions 5 also varies with the specifications. The smaller the bricks, the fewer protrusions 5 are needed.
[0040] Specifically, the method for preparing the ceramic tile with back pattern of the utility model comprises the following steps:
[0041] (1) Grinding raw materials: Grind each raw material and pass it through a 10-mesh sieve;
[0042] (2) Batching and ball milling: The raw materials are mixed according to the set ratio, and the mixed powder is transported to the ball mill through the batching machine. Water is added until the water content of the mixture is 18% by weight, and the ball mill is started to ball mill to the calibrated fineness;
[0043] (3) Mud homogenization: put the mud of qualified fineness into the mud pool and stir it evenly;
[0044] (4) Spray drying: The homogenized slurry is pumped into a drying tower by a slurry pump. The slurry is atomized into fine droplets by an atomizer. The slurry is dried and dehydrated by hot air (400-600°C) in the drying tower to form powder particles. The particles flow out through the discharge port, while the air with fine powder and water vapor is collected by a bag filter and then discharged from the exhaust fan after dust removal in a water bath.
[0045] (5) Silo aging: The powder enters the set silo through the conveying system and is placed for a suitable period of time to further homogenize the moisture content of the powder; specifically, the moisture content of the powder is 5.6% to 6.2%; the particle size distribution of the powder is <1% for 20 mesh or above, 15% to 25% for 20 to 40 mesh, 40% to 50% for 40 to 60 mesh, and 15% to 20% for 60 to 80 mesh;
[0046] (6) Powder molding: The powder is transported to the press for molding. When pressure is applied to the blank, the powder particles are squeezed by the pressure and begin to move and move closer to each other. The blank shrinks and the air is discharged. The maximum pressure is 140 bar and the thickness is 8 mm.
[0047] (7) Firing: Rapid firing is achieved in a roller kiln under a high temperature oxidizing atmosphere, with a firing temperature of 1230°C and a firing cycle of 50 minutes.
[0048] In summary, the ceramic tile with back pattern proposed by the utility model effectively improves the adhesion between the green body and the adhesive and improves the stability of the green body during the firing process through a carefully designed texture structure. This texture structure not only has a wide range of application prospects, but also can bring economic and social benefits to the building materials industry.
[0049] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.
Claims
1. A ceramic tile with back pattern, wherein a plurality of convex stripes are arranged on the back of the ceramic tile, and a plurality of the convex stripes are enclosed to form a plurality of grooves, characterized in that: The acute corners of the groove wall are rounded; The bottom of the groove is provided with a plurality of convex or concave patterns.
2. The ceramic tile with back pattern according to claim 1, characterized in that: The back of the tile is also provided with a plurality of groups of protrusions, each of which is provided with concave cavities; each group of protrusions includes at least two protrusions.
3. The ceramic tile with back pattern according to claim 2, characterized in that: The concave cavity is a trapezoidal concave cavity, and the opening of the concave cavity faces away from the front side of the tile.
4. The ceramic tile with back pattern according to claim 2, characterized in that: A plurality of groups of protrusions are arranged on the right part of the back side of the tile and along the length direction of the right side of the tile.
5. The ceramic tile with back pattern according to any one of claims 1 to 4, characterized in that: The multiple grooves include multiple first groove bodies, multiple second groove bodies and multiple third groove bodies; the depth of the first groove body is greater than the depth of the second groove body; the depth of the second groove body is greater than the depth of the third groove body; the multiple first groove bodies are arranged at the upper left corner of the tile; the multiple third groove bodies are arranged at the lower right corner of the tile; the multiple second groove bodies are arranged between the multiple first groove bodies and the multiple third groove bodies, and are distributed along the diagonal line from the upper right corner to the lower left corner of the tile.
6. The ceramic tile with back pattern according to claim 5, characterized in that: The depth of the first groove body is 3-3.1 mm, the depth of the second groove body is 2.8-2.9 mm, and the depth of the third groove body is 2.6-2.7 mm; the height or depth of the convex or concave pattern is 0.2-0.3 mm.
7. The ceramic tile with back pattern according to claim 1, characterized in that: The groove is a quadrilateral groove.
8. The ceramic tile with back pattern according to claim 1, characterized in that: The groove is a parallelogram; a plurality of the grooves are arranged in a staggered manner.