Premixed mortar screening device

Abstract

The utility model provides a premixed mortar screening device which comprises a base, a vibrating table and a screening box, the vibrating table is arranged above the base, the screening box is arranged on the right side above the vibrating table, a screening plate inlet and outlet is formed in the left side of the screening box, two connecting blocks are installed in the middles of the front side and the rear side of the screening box respectively, and a fixing column is installed on the left side above the vibrating table. A fixed column is arranged in the middle of the sieve plate, a central circular plate is arranged above the fixed column, a bearing is arranged in the middle of the central circular plate, a fixed rod is arranged in the middle of the bearing, and three side connecting plates are arranged on the outer side of the central circular plate. The side connecting plates drive the center circular plate to rotate, the screening plates with the screening holes of different diameters can enter the screening plate inlet and outlet conveniently, different screening plates can be replaced according to different use requirements, and therefore the working efficiency is improved, and the production interruption time caused by replacement of the screening plates is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of premixed mortar screening, in particular to a premixed mortar screening device. Background Art

[0002] In the production process of ready-mixed mortar, sieve plates with different apertures are often required to screen the raw materials. This is because different ready-mixed mortar products have specific requirements for the particle size of the raw materials. Some high-strength mortars may require finer and more uniform particles to ensure their strength and durability, while some general-purpose mortars have relatively loose requirements on particle size. However, it is currently inconvenient to quickly replace sieve plates with different apertures during screening, resulting in low production efficiency. Each time the sieve plate is replaced, a lot of time is required to disassemble and install, which seriously affects the smooth operation of the production line and increases the production cycle. Secondly, the operation of disassembling and assembling the sieve plate is extremely cumbersome, which greatly increases the labor intensity of the workers. The workers must be proficient in the complex replacement process. This complex operation greatly reduces work efficiency. In order to solve this problem, it is urgent to develop a ready-mixed mortar screening device. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a premixed mortar screening device to solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solution: a premixed mortar screening device, comprising: a base, a vibrating table and a screening box, wherein the vibrating table is provided above the base, the screening box is provided on the right side above the vibrating table, and a sieve plate inlet and outlet are provided on the left side of the screening box;

[0005] Two connecting blocks are respectively installed in the middle of the front and rear sides of the screening box, a fixing column is installed on the left side above the vibrating table, a center circular plate is provided above the fixing column, a bearing is installed in the middle of the center circular plate, and a fixing rod is installed in the middle of the bearing;

[0006] Three side connecting plates are installed on the outside of the central circular plate, and a screen plate is installed at the front end of each of the three side connecting plates. A group of screen holes are respectively opened on the upper and lower surfaces of the three screen plates, and a vibration motor is respectively installed in the middle of the three screen plates. A docking block is respectively installed on the front and back sides of the middle position of the three screen plates, and connecting holes are opened in the middle of the docking block and the middle of the connecting block. A hexagonal screw is respectively provided on the front and back sides of the screening box.

[0007] As a preferred embodiment, the four sides of the lower side of the vibration table are connected to the base via springs, and the lower end of the fixing rod is connected to the fixing column.

[0008] As a preferred embodiment, the apertures of the three groups of sieve holes decrease in sequence from front to back in a clockwise direction.

[0009] As a preferred embodiment, the lower end of the hexagonal screw passes through the connecting holes at the two connecting blocks and the docking block and is connected to a hexagonal nut. A feed port is provided above the screening box, and a discharge box is provided below the screening box.

[0010] As a preferred embodiment, a limit plate is installed on the upper end of the fixing rod, and the left side of the screen plate inlet and outlet is an open structure.

[0011] As a preferred embodiment, the screen plate inlet and outlet, the feed port and the inside of the discharge box are interconnected, a material receiving gap is opened on the right side of the vibration table, and the bottom of the screening box is connected to the vibration table through four legs.

[0012] After adopting the above technical solution, the beneficial effects of the utility model are:

[0013] 1. By setting a central circular plate, side connecting plates, three screen plates, fixed rods and screen plate inlets and outlets, the central circular plate is driven to rotate by the side connecting plates, so that screen plates with different apertures can be easily inserted into the screen plate inlets and outlets. Different screen plates can be replaced according to different usage requirements, thereby improving work efficiency and reducing production interruption time caused by replacing screen plates.

[0014] 2. By setting the connecting block, docking block, connecting hole, hexagonal screw and hexagonal nut, after the screen plate is replaced and adjusted, the position of the screen plate can be fixed by passing the hexagonal screw through the connecting block and the docking block, so that the position is not easy to move during screening and affect the screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a premixed mortar screening device of the present utility model.

[0017] Figure 2 This is a schematic structural diagram of a premixed mortar screening device from a top view according to the present invention.

[0018] Figure 3 for Figure 1 A magnified schematic diagram of part A.

[0019] In the figure, 1. Base; 2. Vibrating table; 3. Spring; 4. Screening box; 5. Support legs; 6. Screen plate inlet and outlet; 7. Discharge box; 8. Feed inlet; 9. Connecting block; 10. Hexagonal screw; 11. Fixed column; 12. Center circular plate; 13. Side connecting plate; 14. Bearing; 15. Fixed rod; 16. Screen plate; 17. Screen hole; 18. Docking block; 19. Material connection gap; 20. Limit plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a premixed mortar screening device, comprising: a base 1, a vibrating table 2 and a screening box 4, wherein the vibrating table 2 is provided above the base 1, the screening box 4 is provided on the right side above the vibrating table 2, and a sieve plate inlet and outlet 6 is provided on the left side of the screening box 4;

[0022] Two connecting blocks 9 are respectively installed in the middle of the front and rear sides of the screening box 4, a fixing column 11 is installed on the left side above the vibrating table 2, a center circular plate 12 is provided above the fixing column 11, a bearing 14 is installed in the middle of the center circular plate 12, and a fixing rod 15 is installed in the middle of the bearing 14;

[0023] Three side connecting plates 13 are installed on the outside of the center circular plate 12, and a screen plate 16 is installed at the front end of each of the three side connecting plates 13. A group of sieve holes 17 are respectively opened on the upper and lower surfaces of the three screen plates 16. A vibration motor is respectively installed in the middle of the three screen plates 16. A docking block 18 is respectively installed on the front and back sides of the middle position of the three screen plates 16. Connecting holes are opened in the middle of the docking block 18 and in the middle of the connecting block 9. A hexagonal screw 10 is respectively provided on the front and back sides of the screening box 4.

[0024] The four sides of the lower side of the vibration table 2 are connected to the base 1 through springs 3 respectively, and the lower end of the fixing rod 15 is connected to the fixing column 11.

[0025] The apertures of the three groups of sieve holes 17 decrease in sequence clockwise from the front to the back.

[0026] The lower end of the hexagonal screw 10 passes through the connecting holes at the two connecting blocks 9 and the docking block 18 and is connected to a hexagonal nut. A feed port 8 is provided above the screening box 4, and a discharge box 7 is provided below the screening box 4.

[0027] A limit plate 20 is installed on the upper end of the fixing rod 15, and the left side of the screen plate inlet and outlet 6 is an open structure.

[0028] The screen plate inlet and outlet 6, the feed port 8 and the discharge box 7 are interconnected. A material receiving notch 19 is provided on the right side of the vibration table 2. The bottom of the screening box 4 is connected to the vibration table 2 through four legs 5.

[0029] See also Figures 1 to 3 , as the first embodiment of the present utility model: in actual use, rotate the side connecting plate 13, the side connecting plate 13 can drive the center circular plate 12 to rotate, and the center circular plate 12 simultaneously drives the outer side of the bearing 14 to rotate. When the side connecting plate 13 rotates, it can drive the three screen plates 16 to rotate. According to different premixed mortar raw material screening requirements, the screen plate 16 with the required aperture sieve holes 17 is rotated to the screen plate inlet and outlet 6, so that the positions of the front and rear connecting blocks 9 and the docking blocks 18 correspond to each other, and then the hexagonal screw 10 is used to pass through the front and rear connecting holes from top to bottom in sequence. In the next step, the hexagonal bolt is used to connect the bottom of the hexagonal screw 10 to complete the fixation of the screen plate 16, so that the position of the screen plate 16 is not easy to move during screening and affect the screening process. If replacement is required, the hexagonal screw 10 is removed, and the screen plate 16 is rotated out of the screen plate inlet and outlet 6 and replaced with the required screen plate 16 by the above operation.

[0030] See also Figure 1 and Figure 2 As the second embodiment of the present invention: before screening, the storage container is placed in the material receiving gap 19, and then the vibration motor located at the screening plate 16 in the screening box 4 is started. The vibration motor can drive the screening plate 16 to vibrate. In the next step, the raw materials are added to the middle of the screening box 4 through the feed port 8. When passing through the screening plate 16, the vibrating screening plate 16 can vibrate and screen the raw materials through the sieve holes 17. The screened raw materials fall down through the discharge box 7 into the storage container for centralized collection. While the screening plate 16 vibrates, the vibration is transmitted to the support legs 5 through the screening box 4, and the support legs 5 are transmitted to the four springs 3. After the springs 3 receive the vibration, their own elasticity can help the vibration table 2 increase the vibration amplitude and vibration frequency, thereby improving the screening efficiency. At the same time, it can reduce the vibration transmission to the base 1, thereby reducing the vibration impact on the surrounding environment and the base 1.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A premixed mortar screening device, comprising: A base (1), a vibration table (2) and a screening box (4), wherein the vibration table (2) is provided above the base (1), and the screening box (4) is provided on the right side above the vibration table (2), characterized in that a sieve plate inlet and outlet (6) is provided on the left side of the screening box (4); Two connecting blocks (9) are respectively installed in the middle of the front and rear sides of the screening box (4); a fixing column (11) is installed on the left side above the vibration table (2); a center circular plate (12) is provided above the fixing column (11); a bearing (14) is installed in the middle of the center circular plate (12); and a fixing rod (15) is installed in the middle of the bearing (14); Three side connecting plates (13) are installed on the outside of the central circular plate (12), and a screening plate (16) is installed at the front end of each of the three side connecting plates (13). A group of screening holes (17) are respectively opened on the upper and lower surfaces of the three screening plates (16). A vibration motor is respectively installed in the middle of each of the three screening plates (16). A docking block (18) is respectively installed on the front and rear sides of the middle position of the three screening plates (16). Connecting holes are opened in the middle of the docking block (18) and in the middle of the connecting block (9). A hexagonal screw (10) is respectively provided on the front and rear sides of the screening box (4).

2. A premixed mortar screening device according to claim 1, characterized in that: The four sides of the lower side of the vibration table (2) are connected to the base (1) via springs (3), and the lower end of the fixing rod (15) is connected to the fixing column (11).

3. A premixed mortar screening device according to claim 2, characterized in that: The apertures of the three groups of sieve holes (17) decrease in sequence clockwise from the front to the back.

4. A premixed mortar screening device according to claim 3, characterized in that: The lower end of the hexagonal screw (10) passes through the connection holes at the two connection blocks (9) and the docking block (18) and is connected to a hexagonal nut. A feed port (8) is provided above the screening box (4), and a discharge box (7) is provided below the screening box (4).

5. A premixed mortar screening device according to claim 4, characterized in that: A limiting plate (20) is installed on the upper end of the fixing rod (15), and the left side of the screen plate inlet and outlet (6) is an open structure.

6. The premixed mortar screening device according to claim 1, characterized in that: The screen plate inlet and outlet (6), the feed port (8) and the discharge box (7) are interconnected. A material receiving notch (19) is provided on the right side of the vibration table (2). The bottom of the screening box (4) is connected to the vibration table (2) via four legs (5).

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