Vibrating screen for rice processing

Abstract

The utility model discloses a rice processing vibrating screen which comprises a mounting frame, a screen mesh is arranged at the top of the mounting frame, moving wheels are mounted at four corners of the screen mesh, limiting grooves are formed in two sides of the top end of the mounting frame, the bottoms of the two groups of moving wheels are movably connected with the inner walls of the adjacent limiting grooves, and connecting blocks are fixedly connected to four corners of the bottom end of the screen mesh. The bottom ends of the four connecting blocks are all fixedly connected with racks, the outer walls of the four racks are all connected with half gears in a meshed mode, the outer walls of the four half gears are all fixedly connected with knocking rods, and one ends of the four knocking rods are all fixedly connected with springs. And then the half gear meshed with the half gear is driven to synchronously rotate in a reciprocating mode, the knocking rod is further driven to swing, the bottom of the screen is knocked through the knocking ball, impurities and particles adhering to meshes of the screen can fall off in the screening process, and the meshes of the screen are kept unobstructed.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a vibrating screen for rice processing. Background Art

[0002] Rice processing refers to the process of processing paddy rice into edible rice. The use of vibrating screen in rice processing is mainly to remove impurities in rice and separate rice products of different particle sizes to ensure the purity and quality of rice.

[0003] A vibrating screen for rice processing is disclosed in the patent with the announcement number CN 211190946 U. The same screening box is fixedly connected to four elastic support plates. The screening box is tilted. A servo motor is arranged on the top of the workbench. A driving shaft is fixedly installed on the output shaft of the servo motor. The driving shaft is rotatably connected to the workbench. An elliptical block is fixedly installed on the outer side of the driving shaft. The elliptical block conflicts with the screening box. The utility model avoids setting the servo motor on the screening box, avoids affecting the service life of the servo motor, and improves the effect of vibration screening of rice.

[0004] Although the above technology can achieve vibration by squeezing the elliptical block, thereby protecting the servo motor and improving the screening efficiency, during the screening process of the vibrating screen, rice dust and fine debris will move into the screen holes with the vibration. If these fine particles accumulate too much on the screen, it will cause the screen to be blocked, reducing the screening efficiency. Therefore, it has certain limitations, so innovation is made in this technology. Utility Model Content

[0005] The utility model aims to provide a vibrating screen for rice processing to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vibrating screen for rice processing, comprising a mounting frame, a screen is provided on the top of the mounting frame, movable wheels are installed at the four corners of the screen, limiting grooves are provided on both sides of the top of the mounting frame, the bottoms of the two groups of movable wheels are movably connected to the inner walls of adjacent limiting grooves, the four corners of the bottom end of the screen are fixedly connected with connecting blocks, the bottom ends of the four connecting blocks are fixedly connected with racks, the outer walls of the four racks are meshed with half gears, the outer walls of the four half gears are fixedly connected with knocking rods, one end of the four knocking rods is fixedly connected with springs, and one end of the four springs is fixedly connected with knocking balls.

[0007] As a preferred technical solution of the utility model, the surfaces of the four knocking balls are in contact with the bottom end of the screen, and the sizes of the four knocking balls are consistent.

[0008] As a preferred technical solution of the utility model, two mounting frames are symmetrically installed on both sides of the bottom end of the mounting frame, and one end of the four half gears is rotatably installed between adjacent mounting frames.

[0009] As a preferred technical solution of the utility model, two through grooves are symmetrically provided at both ends of the installation frame, and a portion of the outer walls of the four racks are slidably connected to the inner walls of the through grooves.

[0010] As a preferred technical solution of the utility model, a motor is installed in the middle of the front of the installation frame, a turntable is installed at the output end of the motor, and a connecting shaft is fixedly connected to one side of the front of the turntable.

[0011] As a preferred technical solution of the utility model, a mounting shaft is fixedly installed in the middle of the front side of the screen, a connecting rod is rotatably connected to the inner wall of the mounting shaft, and one end of the connecting rod is rotatably connected to one end of the connecting shaft.

[0012] As a preferred technical solution of the utility model, support frames are fixedly installed at the four corners of the bottom end of the installation frame, and the sizes of the four support frames are consistent.

[0013] As a preferred technical solution of the utility model, a blanking plate is provided at the bottom of the installation frame, the blanking plate is inclined, and both sides of the blanking plate are fixedly connected to adjacent support frames.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model drives the screen to move back and forth by a motor to realize screening, which can drive the rack to move back and forth, and then drive the half gear meshing with it to rotate back and forth synchronously, and further drive the knocking rod to swing, so that the bottom of the screen can be knocked by the knocking ball, so that during screening, impurities and particles adhering to the mesh of the screen can be dropped off, the mesh of the screen can be kept unobstructed, thereby maintaining the screening efficiency, and during the knocking process, the rice particles on the screen can be kept in an active state, and the screening efficiency will not be affected due to adhesion or stillness, thereby speeding up the entire screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial bottom view structural schematic diagram of the utility model.

[0019] In the figure: 1. Installation frame; 2. Screen; 3. Moving wheel; 4. Limiting groove; 5. Support frame; 6. Unloading plate; 7. Motor; 8. Turntable; 9. Connecting shaft; 10. Installation shaft; 11. Connecting rod; 12. Connecting block; 13. Rack; 14. Half gear; 15. Knocking rod; 16. Spring; 17. Knocking ball; 18. Installation frame; 19. Through groove. DETAILED DESCRIPTION

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

[0021] In rice processing, a vibrating screen is needed. The utility model provides a vibrating screen for rice processing, which is specially used for rice screening operations. Compared with a vibrating screen for rice processing with publication number CN 211190946 U, the present device avoids clogging of the mesh by knocking its bottom during vibration screening, thereby achieving better screening efficiency. Example

[0022] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0023] The utility model comprises an installation frame 1, a screen 2 is arranged on the top of the installation frame 1, and moving wheels 3 are installed at the four corners of the screen 2. Limiting grooves 4 are arranged on both sides of the top of the installation frame 1, and the bottoms of the two sets of moving wheels 3 are movably connected to the inner walls of the adjacent limiting grooves 4. The four corners of the bottom end of the screen 2 are fixedly connected with connecting blocks 12, and the bottom ends of the four connecting blocks 12 are fixedly connected with racks 13, and the outer walls of the four racks 13 are meshed and connected with half gears 14, and the outer walls of the four half gears 14 are fixedly connected with knocking rods 15, and one end of the four knocking rods 15 is fixedly connected with springs 16, and one end of the four springs 16 is A knocking ball 17 is fixedly connected, and the cooperation of the moving wheel 3 and the limiting groove 4 plays an auxiliary role in the lateral vibration of the screen 2, and plays a certain limiting role on the screen 2. The surfaces of the four knocking balls 17 are in contact with the bottom end of the screen 2, and the sizes of the four knocking balls 17 are all consistent. The setting of the spring 16 can ensure that the knocking force is evenly transmitted to the screen 2, and the screening effect will not be unstable due to uneven force. This is particularly important for the screening of fine granular materials such as rice, ensuring that the knocking can effectively remove impurities and particles adhering to the screen 2, thereby improving the screening efficiency and product quality.

[0024] In this embodiment, two mounting frames 18 are symmetrically installed on both sides of the bottom end of the mounting frame 1, and one end of the four half gears 14 is rotatably installed between adjacent mounting frames 18. The setting of the mounting frames 18 serves to assist the installation of the half gears 14, so that the half gears 14 can remain stable during rotation.

[0025] In this embodiment, two through grooves 19 are symmetrically provided at both ends of the mounting frame 1, and a portion of the outer walls of the four racks 13 are slidably connected to the inner walls of the through grooves 19. The setting of the through grooves 19 can keep the rack 13 stable when the rack 13 moves. A motor 7 is installed in the middle of the front of the mounting frame 1, and a turntable 8 is installed at the output end of the motor 7. A connecting shaft 9 is fixedly connected to one side of the front of the turntable 8. A mounting shaft 10 is fixedly installed in the middle of the front of the screen 2, and a connecting rod 11 is rotatably connected to the inner wall of the mounting shaft 10. One end of the connecting rod 11 is rotatably connected to one end of the connecting shaft 9. The connecting shaft 9 is connected to the edge of the front of the turntable 8. When the turntable 8 rotates, with the cooperation of the connecting rod 11 and the mounting shaft 10, the screen 2 can be quickly moved back and forth, thereby achieving a vibration screening effect.

[0026] In this embodiment, support frames 5 are fixedly installed at the four corners of the bottom end of the mounting frame 1, and the sizes of the four support frames 5 are all consistent. A discharge plate 6 is provided at the bottom of the mounting frame 1. The discharge plate 6 is inclined, and both sides of the discharge plate 6 are fixedly connected to adjacent support frames 5. The inclined setting of the discharge plate 6 facilitates the function of guiding and discharge of rice after screening.

[0027] Working principle: When in use, the rice to be screened is put onto the screen 2, the driving motor 7 is operated, the turntable 8 is driven to rotate, and the screen 2 is driven to reciprocate on the mounting frame 1 under the connection of the connecting shaft 9, the connecting rod 11 and the mounting shaft 10, so as to realize the vibration screening of the screen 2. While the screen 2 moves, the connecting block 12 at the bottom drives the rack 13 to reciprocate, and the rack 13 is engaged with the half gear 14 to drive the half gear 14 to reciprocate, thereby driving the spring 16 to reciprocate. Under the connection of the spring 16, the knocking ball 17 realizes a reciprocating knocking effect on the bottom of the screen 2. During screening, the blockage of the mesh of the screen 2 is avoided, and the screened rice particles are discharged by sliding through the discharge plate 6.

[0028] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] 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 appended claims and their equivalents.

Claims

1. A vibrating screen for rice processing, comprising a mounting frame (1), characterized in that: A screen (2) is provided on the top of the installation frame (1), and moving wheels (3) are installed at the four corners of the screen (2). Limiting grooves (4) are provided on both sides of the top of the installation frame (1), and the bottoms of the two groups of moving wheels (3) are movably connected to the inner walls of adjacent limiting grooves (4). The four corners of the bottom end of the screen (2) are fixedly connected to connecting blocks (12), the bottom ends of the four connecting blocks (12) are fixedly connected to racks (13), the outer walls of the four racks (13) are meshedly connected to half gears (14), the outer walls of the four half gears (14) are fixedly connected to knocking rods (15), one end of the four knocking rods (15) is fixedly connected to a spring (16), and one end of the four springs (16) is fixedly connected to a knocking ball (17).

2. A vibrating screen for rice processing according to claim 1, characterized in that: The surfaces of the four knocking balls (17) are all in contact with the bottom end of the screen (2), and the sizes of the four knocking balls (17) are all the same.

3. A vibrating screen for rice processing according to claim 1, characterized in that: Two mounting frames (18) are symmetrically mounted on both sides of the bottom end of the mounting frame (1), and one end of each of the four half gears (14) is rotatably mounted between adjacent mounting frames (18).

4. A vibrating screen for rice processing according to claim 1, characterized in that: Two through slots (19) are symmetrically formed at both ends of the installation frame (1), and a portion of the outer walls of the four racks (13) are slidably connected to the inner walls of the through slots (19).

5. A vibrating screen for rice processing according to claim 1, characterized in that: A motor (7) is installed in the middle of the front of the installation frame (1), a rotating disk (8) is installed at the output end of the motor (7), and a connecting shaft (9) is fixedly connected to one side of the front of the rotating disk (8).

6. A vibrating screen for rice processing according to claim 5, characterized in that: A mounting shaft (10) is fixedly mounted in the middle of the front side of the screen (2), a connecting rod (11) is rotatably connected to the inner wall of the mounting shaft (10), and one end of the connecting rod (11) is rotatably connected to one end of the connecting shaft (9).

7. A vibrating screen for rice processing according to claim 1, characterized in that: Support frames (5) are fixedly mounted at the four corners of the bottom end of the installation frame (1), and the four support frames (5) have the same size.

8. A vibrating screen for rice processing according to claim 7, characterized in that: A blanking plate (6) is provided at the bottom of the installation frame (1); the blanking plate (6) is arranged to be inclined, and both sides of the blanking plate (6) are fixedly connected to adjacent support frames (5).

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