Cloth grid and ceramic tile pressing device

Abstract

The invention relates to the field of ceramic tiles, and discloses a material distribution grid which comprises an outer frame, an upper layer grid and a lower layer grid. The upper-layer grating and the lower-layer grating are connected up and down to form a double-layer grating structure; the double-layer grid structure has the beneficial effects that the double-layer grid structure is arranged, the lower-layer toothed spacer is vertically arranged, the supporting effect on the upper-layer grid is achieved, and the self-weight sinking of the double-layer grid structure is reduced; the lower-layer grating is light, the self weight of the cloth grating is effectively reduced due to the layered arrangement, and the pressure borne by the cloth grating during cloth distribution is relieved; the upper-layer grid is mainly used for providing stability for powder falling into the upper-layer grid, so that the powder is uniformly distributed without leaving a cavity, the lower-layer toothed spacer is higher in powder pushing efficiency, and certain mobility is given to the powder, so that the powder is stressed more uniformly when the distribution grid moves, and the powder cannot be deviated and accumulated; the material distribution effect of the material distribution grid of the double-layer structure is better, the pattern forming effect is good, and pressed green bricks are free of grid marks.

Description

Technical Field

[0001] The invention relates to the field of ceramic tiles, and in particular to a material distribution grid and a ceramic tile pressing device. Background Art

[0002] In tile production, powder is spread in a grid, and a preliminary pattern is set using the mesh in the grid. The grid filled with powder is then transported to a press to be pressed and shaped.

[0003] Conventional grilles are generally diamond or hexagonal, which can meet the production of 800mm ceramic tiles. However, with the emergence of stone slab technology, the specifications of ceramic tiles continue to increase. Especially when the specifications of ceramic tiles reach 1.2 meters x 2.4 meters or above, uneven grille marks will appear on the surface of ceramic tiles fired from conventional grille fabrics, affecting the appearance and quality of the ceramic tiles. Summary of the invention

[0004] The present invention aims to improve at least one technical problem in the background technology.

[0005] The first aspect of the present invention provides a cloth grille, comprising an outer frame, an upper grille and a lower grille; the upper grille and the lower grille are fixed inside the outer frame; the upper grille comprises a plurality of hexagonal frames tightly arranged in a mesh structure; the lower grille comprises a plurality of toothed spacers, the upper ends of the toothed spacers are connected to the bottom surfaces of the hexagonal frames, and the lower ends of the toothed spacers are provided with a plurality of tooth structures; the upper grille is connected to the lower grille up and down to form a double-layer grille structure.

[0006] The distribution grid of the embodiment of the first aspect of the present invention has at least the following beneficial effects: a double-layer grid structure is provided, and the lower layer toothed spacers are vertically arranged to support the upper grid and reduce its self-weight depression; the lower grid is lighter, and the layered arrangement effectively reduces the self-weight of the grid and reduces the pressure on the grid during distribution; the upper grid is mainly used to provide stability for the powder that falls into it, so that it is evenly arranged in the grid area without leaving cavities, and the lower layer toothed spacers have higher powder pushing efficiency and give the powder a certain degree of mobility, so that the powder is more evenly stressed when the grid moves without uneven accumulation of material; the double-layer grid has a better distribution effect, a good pattern forming effect, and the pressed bricks have no grid marks.

[0007] As some sub-schemes of the above technical scheme, the cloth grille also includes an adjusting nut and an externally threaded rod; the right end of the toothed spacer is fixedly connected to the right side frame body of the outer frame, the left end of the toothed spacer is connected to the externally threaded rod, the left side frame body of the outer frame is provided with a placement groove, the externally threaded rod passes through the outer frame through the placement groove and is threadedly connected to the adjusting nut, and the adjusting nut abuts against the side wall of the outer frame; the center of the toothed spacer is pre-arched upward.

[0008] As some sub-solutions of the above technical solution, the toothed spacers are perpendicular to the bottom surface of the hexagonal frame, and the toothed spacers are arranged in parallel.

[0009] As some sub-solutions of the above technical solution, the edges of the toothed structures are all arc angles.

[0010] As some sub-solutions of the above technical solution, the distance between the tooth-like structures is equal to the size of the tooth-like structures themselves.

[0011] As some sub-solutions of the above technical solution, the size of the toothed structure is smaller than the length of any bottom side of the hexagonal frame; when multiple toothed spacers are arranged, two adjacent toothed spacers are arranged with staggered teeth.

[0012] As some sub-solutions of the above technical solution, three toothed spacers are correspondingly connected below each of the hexagonal frames, and the layout of the three toothed spacers connected below the hexagonal frames is as follows:

[0013] The first toothed spacer is connected to a bottom edge of the hexagonal frame;

[0014] The third toothed spacer is connected to another bottom edge of the hexagonal frame;

[0015] The second toothed spacer is located between the first toothed spacer and the third toothed spacer, and is connected to two non-adjacent end points of the bottom surface of the hexagonal frame;

[0016] The three toothed spacers divide the space below the hexagonal frame into two equal parts.

[0017] As some sub-schemes of the above technical scheme, the height of the lower grille is smaller than the height of the upper grille; the height of the outer frame is greater than the height of the double-layer grille structure, that is, a gap is left between the lowermost end of the tooth structure and the lowermost end of the cloth grille, and the height of the gap is smaller than the height of the lower grille.

[0018] As some sub-solutions of the above technical solution, the height ratio of the upper grid, the lower grid and the gap is 5:3:1.

[0019] A second aspect of the present invention provides a tile pressing device, comprising the distribution grid described in each of the above technical solutions.

[0020] The tile pressing device according to the second embodiment of the present invention also has corresponding beneficial effects because it includes the material distribution grid of the above technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A top view of the structure of the material distribution grid provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a material distribution grille provided in an embodiment of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the connection mode between the upper grille and the lower grille;

[0025] Figure 4 This is a schematic diagram of the staggered tooth arrangement of the toothed spacers.

[0026] In the attached figure:

[0027] 1-outer frame; 11-placement slot;

[0028] 2- Upper grille;

[0029] 3-lower grid; 31-toothed spacer; 32-toothed structure;

[0030] 4-adjusting nut; 41-external threaded rod. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, the meaning of "several" is an indefinite quantity, the meaning of "multiple" is more than two, "greater than", "less than", "exceed", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. The "and / or" that appears in the full text represents three parallel solutions. For example, A and / or B represents the solution satisfied by A, the solution satisfied by B, or the solution satisfied by both A and B.

[0034] In the description of the present invention, if there is a short sentence containing multiple parallel features, the attributive defines the closest feature, for example: B, C, and E connected to D are arranged on A, which means that B is arranged on A and E is connected to D, and does not constitute a limitation on C; but attributives that indicate the relationship between features, such as "interval arrangement" or "circular arrangement", do not belong to this category. If the word "all" is preceded by an attributive, it means that all features in the short sentence are limited, such as B, C, and D are all arranged on A, which means that B, C, and D are all arranged on A. For a sentence with an omitted subject, the omitted subject is the subject of the previous sentence, that is, B is arranged on A, including C, which means that B is arranged on A and A includes C.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] Combine the following Figures 1 to 4 Embodiments of the present invention are described.

[0037] The present embodiment relates to the field of building tiles, and in particular to a distribution grid. Conventional grids are generally diamond grids or hexagonal grids. When producing 800mm ceramic tiles, due to the small size, the span of the distribution grid is relatively small, and the depression caused by the deadweight in the center of the distribution grid is not obvious. However, when the tile size reaches 1.2 meters x 2.4 meters or more, because the area of ​​the distribution grid becomes larger, the deadweight depression in the center of the distribution grid will be more obvious, resulting in a poor powder pushing effect in the central area of ​​the distribution grid plate. The powder in the distribution grid is concentrated together through friction with the bottom plate where the powder is placed, so that the powder in this distribution grid area is prone to become uneven; if a powder pushing tooth plate is used, because the area of ​​the distribution grid becomes larger, the span of the tooth plate becomes larger, and the center of the powder pushing tooth plate is deformed by the powder pushing due to the arc deformation, and uneven wave patterns will appear on the surface of the fired ceramic tiles. Therefore, the traditional distribution grid is not suitable for the production of large-size rock slabs.

[0038] A cloth grille in an embodiment of the first aspect of the present invention comprises an outer frame 1, an upper grille 2 and a lower grille 3; the upper grille 2 and the lower grille 3 are fixed inside the outer frame 1; the upper grille 2 comprises a plurality of hexagonal frames tightly arranged in a mesh structure; the lower grille 3 comprises a plurality of toothed spacers 31, the long sides of one side of the toothed spacers 31 are connected to the bottom surface of the hexagonal frame, and a plurality of tooth structures 32 are provided on the long sides of the other side of the toothed spacers 31; the upper grille 2 and the lower grille 3 are connected up and down to form a double-layer grille structure.

[0039] The distribution grid of the first aspect embodiment of the present invention is provided with a double-layer grid structure, and the lower toothed spacer 31 is vertically arranged to support the upper grid 2 and reduce its self-weight depression; the lower grid 3 is lighter, and the layered arrangement effectively reduces the self-weight of the distribution grid and reduces the pressure on the distribution grid when distributing the material; the upper grid 2 is mainly used to provide stability for the powder falling into it, so that it is evenly arranged in the grid area without leaving cavities, and the lower toothed spacer 31 has a higher powder pushing efficiency and gives the powder a certain activity, so that the powder is more evenly stressed when the distribution grid moves without uneven accumulation of material; the double-layer structure of the distribution grid has a better distribution effect and a good pattern forming effect, and the pressed bricks have no grid marks.

[0040] Specifically, the cloth grille also includes an adjusting nut 4 and an external threaded rod 41; the right end of the toothed spacer 31 is fixedly connected to the right side frame body of the outer frame 1, and the left end of the toothed spacer 31 is connected to the external threaded rod 41. The left side frame body of the outer frame 1 is provided with a placement groove 11, and the external threaded rod 41 passes through the placement groove 11 to pass through the outer frame 1 and is threadedly connected to the adjusting nut 4, and the adjusting nut 4 abuts against the side wall of the outer frame 1; the center of the toothed spacer 31 is pre-arched upward.

[0041] It should be noted that the right end of the toothed spacer 31 is fixed on the outer frame 1, and the left end of the toothed spacer 31 is connected to the externally threaded rod 41, and the externally threaded rod 41 passes through the placement groove 11 on the outer frame 1 and is connected to the adjusting nut 4. Therefore, when the adjusting nut 4 is twisted, since the right end of the toothed spacer 31 is fixed on the outer frame 1, the toothed spacer 31 and the externally threaded rod 41 cannot rotate, and the adjusting nut 4 abuts against the side wall of the outer frame 1, so twisting the nut will compress the externally threaded rod 41 and the toothed spacer 31, causing the externally threaded rod 41 and the toothed spacer 31 to deform. Because the center of the toothed spacer 31 has been pre-arched upward, when the toothed spacer 31 is compressed, the toothed spacer 31 can continue to arch upward, thereby achieving the adjustment of the curvature of the toothed spacer 31. When the fabric grille is dented due to its own weight, causing the middle part of the toothed spacer 31 to bend downward, the curvature of the toothed spacer 31 can be adjusted by twisting the adjusting nut 4 to keep it straight, and the upper grille 2 connected to the toothed spacer 31 will also be arched, thereby solving the problem of the fabric grille being dented due to its own weight.

[0042] Specifically, the toothed spacers 31 are perpendicular to the bottom surface of the hexagonal frame, and the toothed spacers 31 are arranged in parallel.

[0043] It should be noted that the toothed spacers 31 are perpendicular to the bottom surface of the hexagonal frame, and when the powder in the upper grid 2 falls into the lower grid 3, it will not tilt or accumulate in any direction; the toothed spacers 31 are arranged in parallel, and the distance between them remains consistent, so that the powder falling into the lower grid 3 can be evenly distributed along the parallel direction, and the powder is evenly stressed when it is pushed, further improving the uniformity of the powder.

[0044] Specifically, the edges of the tooth structures 32 are all arc-shaped. The gaps between the tooth structures 32 make the lower layer of powder accumulation present a shape that is narrow at the top and wide at the bottom. When the edges of the tooth structures 32 are arc-shaped, the powder accumulation is smooth and can be better dispersed when pressed, so that the powder is evenly arranged; compared with triangular or square teeth, arc-shaped teeth have no sharp edges and corners, which can reduce the risk of injury to installers during assembly.

[0045] Specifically, the distance between the tooth structures 32 is equal to the size of the tooth structures 32. That is, the tooth structures 32 are evenly arranged on the toothed spacers 31, so that the distribution grid as a whole is a regular and symmetrical structure, so that the powder in the distribution grid can be evenly arranged in all directions.

[0046] Specifically, the size of the tooth structure 32 is smaller than the side length of any bottom side of the hexagonal frame; when multiple pieces of the toothed spacers 31 are arranged, two adjacent pieces of the toothed spacers 31 are arranged in staggered teeth. The size of the tooth structure 32 is smaller than the side length of any bottom side of the hexagonal frame, that is, the density of the tooth structure 32 is higher than the density of the hexagonal frame of the upper grid 2, so that the powder flows more evenly in the gaps between the tooth structures 32; and the tooth structures 32 are arranged in staggered teeth, which can limit the mobility provided by the tooth structures 32 to the powder, avoid excessive flow of the powder, and make the distribution more uniform.

[0047] Specifically, three toothed spacers 31 are correspondingly connected below each hexagonal frame, and the layout of the three toothed spacers 31 connected below the hexagonal frame is as follows:

[0048] The first toothed spacer 31 is connected to a bottom edge of the hexagonal frame;

[0049] The third toothed spacer 31 is connected to another bottom edge of the hexagonal frame;

[0050] The second toothed spacer 31 is located between the first toothed spacer 31 and the third toothed spacer 31 , and is connected to two non-adjacent end points of the bottom surface of the hexagonal frame;

[0051] The three toothed spacers 31 divide the space below the hexagonal frame into two equal parts.

[0052] It should be noted that:

[0053] 1. The toothed spacer 31 is butted against the bottom edge of the hexagonal frame, so that the upper grid 2 and the lower grid 3 are conveniently connected;

[0054] 2. Three toothed spacers 31 are arranged under each hexagonal frame. Two powder filling areas are separated by the three toothed spacers 31 under the upper hexagonal frame, that is, the density of the powder filling area separated by the lower toothed spacers 31 is higher than that of the powder filling area separated by the upper hexagonal frame. The high-density toothed spacers 31 make the powder in the lower grid 3 more finely divided, and the lower powder can be spread more evenly, so it is not easy to have grid marks. In addition, although the lower grid 3 provides mobility for the powder, this mobility is limited by increasing the density of the toothed spacers 31, so that the circulation of the powder in the lower grid 3 will not affect the pattern of the powder accumulation in the upper grid 2.

[0055] 3. The upper grid 2 and the lower grid 3 are combined in the above manner, and only the second toothed spacer 31 forms a partial barrier in the vertical direction, so that when the upper layer of powder falls into the lower layer, the powder will not clump due to the too narrow powder falling space;

[0056] 4. Three toothed spacers 31 divide the space below the hexagonal frame into two equal parts, that is, there are two powder filling intervals corresponding to each hexagonal frame. When the distribution grid moves, part of the powder moves due to inertia, but because the spacers are arranged in a staggered tooth arrangement, this part of the powder will only move from one powder filling area to the next powder filling area. Since every two lower powder filling areas correspond to an upper hexagonal frame area, the movement of the powder in the lower layer corresponds to the upper layer one by one, and the activity of this part of the powder is limited to a hexagonal frame area, which ensures the stability of the powder in each hexagonal area.

[0057] Specifically, the height of the lower grille 3 is smaller than that of the upper grille 2 ; the height of the outer frame 1 is greater than the height of the double-layer grille structure, that is, a gap is left between the lower end of the toothed structure 32 and the lower end of the fabric grille, and the height of the gap is smaller than the height of the lower grille 3 .

[0058] It should be noted that the gap can be regarded as an additional gap layer under the lower grid 3. The powder in the gap layer has sufficient mobility. When the gap layer height is relatively small, sufficient powder can be piled on the top of the powder, and the material deviation will not occur due to excessive mobility, and the material can be densely arranged without gaps. However, when the gap layer is too large, excessive flow of powder will cause material deviation, affecting the uniformity of distribution. Because the center of the grid will produce a self-weight depression, the bottom of the traditional grid is used to prevent its bottom from rubbing against the bottom plate. A relatively large gap needs to be left between the bottom plate and the bottom plate, as a too large gap will affect the powder pushing effect. After using a double-layer structured cloth grille, at the same height, the weight of the lower grille 3 composed of toothed spacers 31 is lighter than the weight of the upper grille 2 composed of a hexagonal frame, making the overall weight of the cloth grille smaller, and the weight depression in the center of the cloth grille is reduced accordingly. The bottom of the cloth grille can be closer to the bottom plate, and the gap between the bottom of the cloth grille and the bottom plate is smaller, thereby making the powder pushing effect of the cloth grille better.

[0059] Specifically, the height ratio of the upper grid 2, the lower grid 3 and the gap is 5:3:1.

[0060] It should be noted that: after a gap is left between the bottom of the toothed spacer 31 and the bottom of the distribution grid, the distribution grid is actually a three-layer structure, namely an upper hexagonal frame layer, a lower toothed spacer 31 layer and a gap layer, and the activity of the powder in the three layers is from low to high; the three-layer structure decreases in height size in sequence, that is, each layer is smaller in size relative to the upper layer, and the upper grid 2 should account for the largest proportion in the overall height, and its height should be greater than the sum of the heights of the lower grid 3 and the gap layer. Through such a design, the activity of the powder in the lower grid 3 will not affect the preset pattern shape of the powder by the upper grid 2, and the gap layer is used to provide the powder with the necessary activity space to adapt to subtle adjustments during the spreading process; this design structure not only improves the pattern retention ability of the distribution grid, but also enhances its stability in layout.

[0061] A tile pressing device in an embodiment of the second aspect of the present invention comprises the distribution grid described in the above embodiment.

[0062] The tile pressing device according to the second embodiment of the present invention also has corresponding beneficial effects because it includes the material distribution grid of the above technical solution.

[0063] The preferred embodiments of the present invention are described in detail above, but the present disclosure is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present disclosure.

Claims

1. A fabric grille, characterized in that: The invention comprises an outer frame (1), an upper grille (2) and a lower grille (3); the upper grille (2) and the lower grille (3) are fixed inside the outer frame (1); the upper grille (2) comprises a plurality of hexagonal frames which are closely arranged into a mesh structure; the lower grille (3) comprises a plurality of toothed spacers (31), the upper ends of the toothed spacers (31) are connected to the bottom surfaces of the hexagonal frames, and the lower ends of the toothed spacers (31) are provided with a plurality of toothed structures (32); the upper grille (2) and the lower grille (3) are connected up and down to form a double-layer grille structure.

2. A fabric grille according to claim 1, characterized in that: The material distribution grid further comprises an adjusting nut (4) and an externally threaded rod (41); the right end of the toothed spacer (31) is fixedly connected to the right side of the outer frame (1); the left end of the toothed spacer (31) is connected to the externally threaded rod (41); a placement groove (11) is provided on the left side of the outer frame (1); the externally threaded rod (41) passes through the placement groove (11) and passes out of the outer frame (1) and is threadedly connected to the adjusting nut (4); the adjusting nut (4) abuts against the side wall of the outer frame (1); the center of the toothed spacer (31) is pre-arched upward.

3. A fabric grille according to claim 1, characterized in that: The toothed spacers (31) are perpendicular to the bottom surface of the hexagonal frame, and the toothed spacers (31) are arranged in parallel.

4. A fabric grille according to claim 1, characterized in that: The edges of the tooth-like structure (32) are all arc angles.

5. The fabric grille according to claim 1, characterized in that: The distance between the tooth-like structures (32) is equal to the size of the tooth-like structures (32) themselves.

6. The fabric grille according to claim 1, characterized in that: The size of the toothed structure (32) is smaller than the length of any bottom side of the hexagonal frame; when a plurality of toothed spacers (31) are arranged, two adjacent toothed spacers (31) are arranged with staggered teeth.

7. The fabric grille according to claim 1, characterized in that: Three toothed spacers (31) are correspondingly connected below each of the hexagonal frames, and the layout of the three toothed spacers (31) connected below the hexagonal frames is as follows: The first toothed spacer (31) is connected to one bottom edge of the hexagonal frame; the third toothed spacer (31) is connected to another bottom edge of the hexagonal frame opposite thereto; The second toothed spacer (31) is located between the first toothed spacer (31) and the third toothed spacer (31), and is connected to two non-adjacent end points of the bottom surface of the hexagonal frame; The three toothed spacers (31) divide the space below the hexagonal frame into two equal parts.

8. The material distribution grid according to claim 1, characterized in that: The height of the lower grille (3) is smaller than the height of the upper grille (2); the height of the outer frame (1) is larger than the height of the double-layer grille structure, that is, a gap is left between the lower end of the toothed structure (32) and the lower end of the fabric grille, and the height of the gap is smaller than the height of the lower grille (3).

9. The material distribution grid according to claim 5, characterized in that: The height ratio of the upper grid (2), the lower grid (3) and the gap is 5:3:

1.

10. A tile pressing device, characterized in that: The invention comprises the cloth grid as claimed in any one of claims 1 to 9.

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