A grid positioning filler method for preparing thin rock slabs

Abstract

The present invention specifically discloses a grid-positioned filling method for preparing thin rock slabs, comprising the following steps: using a first material cart to feed a second material cart; the powder from the second material cart enters the mold cavity of a template; wherein the second material cart is a grid-like structure, and the capacity of the powder in the second material cart is equal to the volume of the template. The present application performs secondary material distribution through the first material cart and the second material cart, wherein the second material cart is a grid-like structure, and its capacity is equal to the volume of the mold cavity of the template, thereby achieving the purpose of grid-positioned filling, ensuring the filling uniformity of the powder in the mold cavity, and avoiding the problem of uneven filling density, thereby meeting the production needs of large ceramic slabs; at the same time, after the mold cavity filling is completed, there is no need to use a scraper to scrape it flat, thereby improving the filling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rock slab production, and in particular to a grid positioning filler method for preparing thin rock slabs. Background Art

[0002] In the production and molding process of ordinary ceramic tiles and ceramic slabs (rock slabs), the "fixed volume filling process" (not "fixed weight") is generally used. Figure 1 As shown in the figure, the fixed volume filling process is to first fill the powder directly into the mold cavity through a distribution vehicle, and then use a scraper to scrape the powder flat (return the material) to complete the filling process. When scraping, pressure and vibration will be generated on the powder, and the powder will "squeeze" from one end to the other, and the filling density will be high on one side and low on the other. The filling amount and filling uniformity of this "fixed volume filling process" are directly affected by the powder stacking method. The greater the powder stacking density, the more powder is filled; and the larger the gap between the powder particles, the smaller the stacking density; the longer the powder shakes, the fewer the gaps between the powder particles. In other words, after filling and molding, the weight of each brick is not necessarily the same, but the volume is the same; the unit weight (density) of different positions of the same brick is not necessarily the same. This difference in filling density has little impact on the 800×800mm specification (ordinary ceramic tiles), which can basically meet the production requirements; when it appears in the 2700×1200mm specification (large ceramic slabs), and the filler thickness is reduced from 30mm to 7mm, this difference in filling density will have a great impact, which is directly related to whether the powder can be "formed" and cannot meet the production needs of large ceramic slabs. Summary of the invention

[0003] In view of the defect that the fixed volume filling process in the above-mentioned background technology obtains large differences in the filling density of powders, the present invention provides a grid positioning filling method for preparing thin rock slabs to overcome the above-mentioned defect. This positioning filling method can greatly reduce the filling density differences of powders, thereby meeting the production needs of large ceramic slabs.

[0004] In order to achieve the above-mentioned object, the present application provides a grid positioning filler method for preparing a thin rock plate, comprising the following steps:

[0005] Using the first material car to feed the second material car;

[0006] The powder from the second material car enters the mold cavity of the template;

[0007] The second material cart is a grid-like structure, and the capacity of the powder in the second material cart is equal to the volume of the template.

[0008] In certain embodiments, the specific steps of using the first feeder to feed the second feeder are:

[0009] The first material cart and the second material cart move simultaneously toward the template to positions corresponding to the mold cavity of the template;

[0010] The first material cart moves toward the second material cart, and the first material cart feeds the second material cart while moving.

[0011] In certain embodiments, after the first material cart is fed to the second material cart while the first material cart is moving, the first material cart is returned while the powder on the second material cart is scraped flat.

[0012] Through the above operation, there is no need to use a scraper to scrape the powder material, thereby improving the powder filling efficiency. It is worth noting that in order to ensure the effect of scraping the powder material on the second material car, the return process of the first material car is carried out at a uniform speed.

[0013] In certain embodiments, the second material cart is provided with a positioning structure, and during the process of scraping the powder on the second material cart by utilizing the return operation of the first material cart, the positioning structure is utilized to maintain the second material cart in a fixed position.

[0014] By setting a positioning structure, after the second material cart is moved to the position corresponding to the mold cavity of the template, the second material cart is fixed on the template using the positioning structure. This is helpful to prevent the second material cart from shifting during the process of scraping the powder on the second material cart by the return operation of the first material cart 1, thereby ensuring the powder filling accuracy.

[0015] In some embodiments, before using the first feeder to feed the second feeder, a rock slab powder is prepared to obtain a powder for subsequent powder filling operation, and the natural repose angle of the powder is less than or equal to 18 o .

[0016] The natural repose angle is less than or equal to 18 o The powder has good fluidity, which can ensure the uniformity of the subsequent powder filling density.

[0017] In some embodiments, the specific steps of preparing the rock slab powder are:

[0018] Step 1: using a slurry supply device to spray powder to obtain powder particles, the working parameters of the slurry supply device are that the moisture content of the slurry is 28-38%, the atomization pressure is 1.4-2.1Mpa, and the aperture of the spray piece is 1.2-2.6mm;

[0019] Step 2: The powder particles are sorted using a multi-stage automatic screening device to obtain rock slab powder.

[0020] Through the above preparation method, a natural repose angle of less than or equal to 18 oPowders with good flow properties can effectively reduce the powder shaking time in the subsequent filling process, ensuring uniform filling density, thereby meeting the production and molding requirements of ultra-thin ceramic slabs. At the same time, compared with the traditional spray granulation process, which generally uses a 10-mesh sieve for sorting, it can only remove sticky false particles, but cannot screen out solid tiny particles and adjust the proportion of particles of different sizes. This application can obtain selective particle grading to a certain extent according to process requirements through multi-stage screening.

[0021] In certain embodiments, the second feed cart and the inner side wall of the mold cavity are both smoothed.

[0022] The above operation is helpful to avoid part of the powder from adhering to the inner wall, thereby improving the filling accuracy.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application performs secondary material distribution through the first material cart and the second material cart, the second material cart is a grid structure, and its capacity is equal to the cavity volume of the template, thereby achieving the purpose of grid positioning filler, ensuring the filling uniformity of the powder in the cavity, avoiding the problem of uneven filling density, thereby meeting the production needs of large ceramic panels; at the same time, there is no need to use a scraper to scrape the cavity after the filling is completed, thereby improving the filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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:

[0025] Figure 1 It is a flow chart of the packing process of rock slab in the prior art;

[0026] Figure 2 It is a schematic diagram of a grid positioning filler method for preparing thin rock slabs according to an embodiment of the present invention.

[0027] Figure 3 This is a process flow chart of a grid positioning filler for preparing thin rock slabs according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The 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.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "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 invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] See also Figure 1 The traditional fixed volume filling process is to first fill the powder directly into the mold cavity through the material distribution vehicle 10, and then use the scraper 11 to scrape the powder flat (return the material). Since the powder will be pressured and shaken when scraping, the powder will "squeeze" from one end to the other, and the filling density will be high on one side and low on the other side.

[0034] The fixed volume filling process mentioned above causes the problem of uneven powder filling density. The impact on the 800×800mm specification (ordinary ceramic tiles) is not obvious, and the above powder filling density difference can basically meet the production requirements. However, for the 2700×1200mm specification (ceramic large slab), the filler thickness varies greatly, and this filling density difference will cause a great impact, affecting the subsequent molding of the ceramic large slab.

[0035] See also Figure 2 and Figure 3 The grid positioning filler method 100 for preparing a thin rock plate according to an embodiment of the present invention comprises the following steps:

[0036] S100, prepare rock slab powder to obtain powder for subsequent powder filling operation, wherein the natural repose angle of the powder is less than or equal to 18 o .

[0037] In some embodiments, the specific steps of preparing the rock slab powder are:

[0038] Step 1: using a slurry supply device to spray powder to obtain powder particles, the working parameters of the slurry supply device are that the moisture content of the slurry is 28-38%, the atomization pressure is 1.4-2.1Mpa, and the aperture of the spray piece is 1.2-2.6mm;

[0039] Step 2: The powder particles are sorted by a multi-stage automatic screening device to obtain rock slab powder. The traditional spray granulation process generally uses a 10-mesh screen for sorting, which can only remove sticky false particles, but cannot screen out solid tiny particles and adjust the proportion of particles of different sizes. This embodiment can obtain selective particle grading to a certain extent according to process requirements through multi-stage screening.

[0040] Through the above preparation method, a natural repose angle of less than or equal to 18 o Powder with good flowability can effectively reduce the powder shaking time in the subsequent filling process, ensuring uniform filling density, thereby meeting the production and molding requirements of ultra-thin ceramic slabs.

[0041] S101, using the first material cart 1 to feed the second material cart 2;

[0042] In some embodiments, the specific steps of using the first feeder 1 to feed the second feeder 2 are:

[0043] The first material cart 1 and the second material cart 2 move simultaneously toward the template 3 to positions corresponding to the mold cavity 30 of the template 3;

[0044] The first material cart 1 moves toward the second material cart 2, and the first material cart 1 feeds the second material cart 2 while moving, and the feeding is performed by shaking the powder.

[0045] The second material cart 2 is a grid-like structure, and the capacity of the powder in the second material cart 2 is equal to the volume of the template 3. The first material cart 1 and the second material cart 2 are together configured as a double-layer material distribution cart.

[0046] In addition, in some embodiments, after the first material cart 1 is moved and feeds the second material cart 2, the first material cart 1 is returned and the powder on the second material cart is scraped flat, without the need to use a scraper to scrape the powder later, thereby improving the powder filling efficiency. It is worth understanding that in order to ensure the effect of scraping the powder on the second material cart 2, the return process of the first material cart 1 is performed at a uniform speed.

[0047] The above-mentioned carriage return operation refers to the first material cart 1 moving in a direction away from the second material cart 2.

[0048] Furthermore, in order to ensure the position of the second material cart 2 on the template 3, the second material cart 2 is provided with a positioning structure, and the positioning structure is used to keep the second material cart in a fixed position during the process of scraping the powder on the second material cart 2 by the return operation of the first material cart 1. By providing the positioning structure, after the second material cart 2 is moved to the position corresponding to the mold cavity 30 of the template 3, the second material cart 2 is fixed to the template 3 by the positioning structure, which is conducive to preventing the second material cart 2 from deviating during the process of scraping the powder on the second material cart 2 by the return operation of the first material cart 1, thereby ensuring the powder filling accuracy.

[0049] S102, the powder material of the second material cart 2 enters the mold cavity 30 of the template 3. After the powder material is filled into the mold cavity, the first material cart 1 and the second material cart 2 are lifted and evacuated.

[0050] In some embodiments, in order to ensure that powder adheres to the inner wall during the filling process, the inner wall of the second material cart 2 and the mold cavity are both smoothed, which helps to avoid some powder adhering to the inner wall and improves the filling accuracy.

[0051] To summarize, the grid positioning filling method for preparing thin rock slabs according to the embodiment of the present invention performs two-level material distribution through the first material cart and the second material cart. The second material cart is a grid structure, and its capacity is equal to the mold cavity volume of the template, thereby achieving the purpose of grid positioning filling, ensuring the filling uniformity of the powder in the mold cavity, avoiding the problem of uneven filling density, and thus meeting the production needs of large ceramic slabs; at the same time, there is no need to use a scraper to scrape the mold cavity after the filling is completed, thereby improving the filling efficiency.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for preparing a grid-positioned filler for a thin rock plate, characterized in that: The steps include: Using the first material car to feed the second material car; The powder from the second material car enters the mold cavity of the template; Wherein, the second material cart is a grid-like structure, and the capacity of the powder in the second material cart is equal to the volume of the template; The first material car and the second material car are configured together as a double-layer material distribution car; The specific steps of using the first feed car to feed the second feed car are: The first material cart and the second material cart move simultaneously toward the template to positions corresponding to the mold cavity of the template; The first material cart moves toward the second material cart, and the first material cart feeds the second material cart while the first material cart moves; after the first material cart feeds the second material cart while the first material cart moves, the first material cart performs a return operation and the powder on the second material cart is scraped flat; The second material cart is provided with a positioning structure, and in the process of scraping the powder on the second material cart by using the return operation of the first material cart, the positioning structure is used to keep the second material cart in a fixed position; The specific steps of preparing the rock slab powder are: Step 1: using a slurry supply device to spray powder to obtain powder particles, the working parameters of the slurry supply device are that the moisture content of the slurry is 28-38%, the atomization pressure is 1.4-2.1Mpa, and the aperture of the spray piece is 1.2-2.6mm; Step 2: The powder particles are sorted by a multi-stage automatic screening device to obtain rock slab powder; the rock slab powder is prepared before the first material truck is used to feed the second material truck to obtain powder for subsequent powder filling operations, and the natural repose angle of the powder is less than or equal to 18 o .

2. The grid positioning filler method for preparing thin rock slabs according to claim 1 is characterized in that: The inner side walls of the second material cart and the mold cavity are both smoothed.

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