Impurity removal equipment for rice processing

Abstract

The utility model discloses impurity removal equipment for rice processing, which comprises a square screening frame, a horizontal screening plate and two supporting racks, the square screening frame is welded at the tops of the two supporting racks, the horizontal screening plate is arranged on one side of the bottom end of the square screening frame, and a screening plate driving mechanism is mounted on the other side of the bottom end of the square screening frame; the sieve plate driving mechanism comprises a frame mounting seat, a motor mounting cylinder, a large gear piece, a small gear piece, a linkage shaft, a bolt connecting block, a knocking strip and a motor piece. The sieve plate driving mechanism is mounted on the other side of the bottom end of the square screening frame; a motor part is used for driving a large gear part to rotate, the large gear part and a small gear part are in meshed connection and rotate as well, and a linkage shaft also rotates as well, so that a knocking strip does circular motion and intermittently knocks a horizontal screen plate, the horizontal screen plate intermittently vibrates, and then rice and impurities can be better screened; meanwhile, impurities are effectively prevented from being clamped at meshes of the horizontal sieve plate.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a device for removing impurities in rice processing. Background Technology

[0002] Rice is one of the world's most important food crops. It is mainly made from paddy rice through harvesting, hulling, and other processing steps. During rice processing, in order to ensure the quality of the final product, various impurities need to be removed, including but not limited to rice husks, dust, stones, and metal fragments. Therefore, impurity removal is necessary.

[0003] Existing patent publication number CN221413969U discloses a rice processing screening machine. In this design, the drive mechanism is located in the middle of a fixed frame; the vertical end of a right-angle moving frame is connected to the drive mechanism, and the front bottom of the horizontal end of the right-angle moving frame is movably positioned above the mounting frame; a screen frame is fixedly installed at the inner bottom of the material placement frame; a feeding auxiliary mechanism is located on the right side wall of the material placement frame; two electric push rods are rotatably mounted on the front and rear sides of the left side of the right-angle moving frame via a mounting bracket and a hinge seat; the upper end of the electric push rod is rotatably connected to the left side wall of the material placement frame via the hinge seat. This design can screen and remove impurities and small-diameter rice that does not conform to the specified particle size, ensuring the quality of the rice. It can also screen large quantities of rice simultaneously, making feeding more convenient and practical.

[0004] The screening machine disclosed above uses two electric push rods to extend and retract asynchronously to make the material frame shake. This driving method is unstable and impurities are stuck inside the screen and cannot be effectively discharged. Therefore, we have designed an impurity removal device for rice processing. Utility Model Content

[0005] The purpose of this invention is to provide an impurity removal device for rice processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rice processing impurity removal device, comprising a square screening frame, a horizontal screen plate and two support frames, wherein the square screening frame is welded to the top of the two support frames, the horizontal screen plate is disposed on one side of the bottom end of the square screening frame, and a screen plate driving mechanism is installed on the other side of the bottom end of the square screening frame.

[0007] The screen plate drive mechanism includes a frame mounting base, a motor mounting cylinder, a large gear component, a small gear component, a linkage shaft, a bolt connecting block, a striking bar, and a motor component. The motor mounting cylinder is mounted on the other side of the bottom end of the square screening frame via the frame mounting base. The motor component is installed inside the motor mounting cylinder, and the output shaft of the motor component is connected to the large gear component. The small gear component meshes with the large gear component. The linkage shaft is keyed to the center of the small gear component. The bolt connecting block is installed at the end of the linkage shaft and is bolted to the striking bar.

[0008] Preferably, the bottom of the motor mounting cylinder is provided with an integrally formed perforated seat, and the linkage shaft is inserted inside the perforated seat with both ends of the linkage shaft located outside the two ends of the perforated seat.

[0009] Preferably, the perforated seat is provided with a plurality of bearing components inside, and the inner rings of the plurality of bearing components are all connected to the bushing of the linkage shaft.

[0010] Preferably, a discharge cylinder cover plate is installed on one side of the top of the square screening frame, an L-shaped discharge cylinder is installed at the top opening of the discharge cylinder cover plate, a feed inlet is opened on the horizontal part of the L-shaped discharge cylinder, and a dustproof cloth is installed on the other side of the top of the square screening frame.

[0011] Preferably, a cleaning plate is installed at the notch on one side of the square screening frame, and the cleaning plate contacts the horizontal screen plate.

[0012] Preferably, an inclined guide plate is installed on one side of the inner cavity of the square screening frame, and the lowest end of the inclined guide plate contacts one end of the horizontal screen plate and is provided with an arc transition connection.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model discloses an impurity removal device for rice processing. A screen plate drive mechanism is installed on one side of the bottom of a square screening frame. The screen plate drive mechanism includes a frame mounting base, a motor mounting cylinder, a large gear, a small gear, a linkage shaft, bolt connecting blocks, a striking bar, and a motor. The motor drives the large gear to rotate, and the large gear meshes with the small gear, causing them to rotate as well. The linkage shaft also rotates, causing the striking bar to move in a circular motion, intermittently striking the horizontal screen plate. This intermittent vibration of the horizontal screen plate improves the separation of rice and impurities, while effectively preventing impurities from getting stuck in the mesh of the horizontal screen plate. A discharge cylinder cover is installed on one side of the top of the square screening frame, with an L-shaped discharge cylinder installed at the top opening. A dustproof cloth is installed on the other side of the top of the square screening frame. This prevents the falling rice from generating dust, greatly ensuring a clean working environment. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the planar structure.

[0017] Figure 3 This is a three-dimensional structural diagram of the motor mounting cylinder of this utility model.

[0018] In the diagram: 1. Square screening frame; 2. Discharge cylinder cover plate; 3. Dustproof cloth; 4. Cleaning plate; 5. L-shaped discharge cylinder; 6. Square feed inlet; 7. Support frame; 8. Inclined guide plate; 9. Horizontal screen plate; 10. Frame mounting base; 11. Motor mounting cylinder; 12. Large gear component; 13. Small gear component; 14. Linkage shaft; 15. Bolt connection block; 16. Striking bar; 17. Motor component; 18. Through-hole seat; 19. Bearing component. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides, for example Figure 1-3 An impurity removal device for rice processing;

[0021] Example 1: The impurity removal equipment includes a square screening frame 1, a horizontal screen plate 9 and two support frames 7. The square screening frame 1 is welded to the top of the two support frames 7. The horizontal screen plate 9 is set on one side of the bottom end of the square screening frame 1. A screen plate drive mechanism is installed on the other side of the bottom end of the square screening frame 1.

[0022] like Figure 2 and Figure 3 As shown, the screen plate drive mechanism includes a frame mounting base 10, a motor mounting cylinder 11, a large gear component 12, a small gear component 13, a linkage shaft 14, a bolt connecting block 15, a striking bar 16, and a motor component 17. The motor mounting cylinder 11 is mounted on the other side of the bottom end of the square screening frame 1 through the frame mounting base 10. The motor component 17 is installed inside the motor mounting cylinder 11, and the output shaft of the motor component 17 is connected to the large gear component 12. The small gear component 13 meshes with the large gear component 12. The linkage shaft 14 is keyed to the center of the small gear component 13. The bolt connecting block 15 is installed at the end of the linkage shaft 14 and bolted to the striking bar 16. The striking bar 16 contacts the horizontal screen plate 9.

[0023] Operating method: The motor 17 is connected to an external power source to output power, which drives the large gear 12 to rotate. The large gear 12 meshes with the small gear 13, and the small gear 13 also rotates. Since the diameter of the small gear 13 is smaller than that of the large gear 12, the rotation speed of the small gear 13 is faster. The linkage shaft 14 also rotates quickly, causing the striking bar 16 to make a circular motion, intermittently striking the horizontal sieve plate 9, causing the horizontal sieve plate 9 to vibrate intermittently. This allows for better screening of rice and impurities, and also effectively prevents impurities from getting stuck in the mesh of the horizontal sieve plate 9.

[0024] Furthermore, such as Figure 3 As shown, the bottom of the motor mounting cylinder 11 is provided with an integrally formed perforated seat 18, the linkage shaft 14 is inserted inside the perforated seat 18 and both ends of the linkage shaft 14 are located outside the two ends of the perforated seat 18; the perforated seat 18 is provided with multiple bearing components 19, and the inner rings of the multiple bearing components 19 are all connected to the bushings of the linkage shaft 14.

[0025] The above settings are intended to ensure good rotational accuracy of the linkage shaft 14 during rotation and to reduce radial runout of the linkage shaft 14.

[0026] Example 2: The impurity removal equipment includes a square screening frame 1, a horizontal screen plate 9, and two support frames 7. The square screening frame 1 is welded to the top of the two support frames 7. The horizontal screen plate 9 is set on one side of the bottom end of the square screening frame 1. A screen plate drive mechanism (as shown in Example 1) is installed on the other side of the bottom end of the square screening frame 1. A discharge cylinder cover plate 2 is installed on one side of the top end of the square screening frame 1. An L-shaped discharge cylinder 5 is installed at the top opening of the discharge cylinder cover plate 2. A square inlet 6 is opened on the horizontal part of the L-shaped discharge cylinder 5. A dustproof cloth 3 is installed on the other side of the top end of the square screening frame 1. A cleaning plate 4 is installed at the notch on one side of the square screening frame 1. The cleaning plate 4 contacts the horizontal screen plate 9.

[0027] This design is intended to allow rice to fall more easily into the square screening frame 1 for screening, reducing dust. An inclined guide plate 8 is installed on one side of the inner cavity of the square screening frame 1 to guide the rice to the horizontal screen plate 9 for screening. The cleaning plate 4 allows the opening on one side of the square screening frame 1 to effectively clean up impurities after screening.

[0028] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A rice processing impurity removal device, comprising a square screening frame (1), a horizontal screen plate (9), and two support frames (7), wherein the square screening frame (1) is welded to the top of the two support frames (7), and the horizontal screen plate (9) is disposed on one side of the bottom end of the square screening frame (1), characterized in that, A screen plate drive mechanism is installed on the other side of the bottom end of the square screening frame (1); The screen plate drive mechanism includes a frame mounting base (10), a motor mounting cylinder (11), a large gear (12), a small gear (13), a linkage shaft (14), a bolt connecting block (15), a striking bar (16), and a motor component (17). The motor mounting cylinder (11) is mounted on the other side of the bottom of the square screening frame (1) through the frame mounting base (10). The motor component (17) is installed inside the motor mounting cylinder (11), and the output shaft of the motor component (17) is connected to the large gear (12). The small gear (13) meshes with the large gear (12). The linkage shaft (14) is keyed to the center of the small gear (13). The bolt connecting block (15) is installed at the end of the linkage shaft (14) and bolted to the striking bar (16).

2. The foreign matter removing apparatus for rice processing according to claim 1, wherein The bottom of the motor mounting cylinder (11) is provided with an integrally formed perforated seat (18), and the linkage shaft (14) is inserted inside the perforated seat (18) with both ends of the linkage shaft (14) located outside the two ends of the perforated seat (18).

3. The foreign matter removing apparatus for rice processing according to claim 2, wherein The perforated seat (18) is provided with a plurality of bearing components (19), and the inner rings of the plurality of bearing components (19) are connected to the bushing of the linkage shaft (14).

4. The foreign matter removing apparatus for rice processing according to claim 1, wherein A discharge cylinder cover plate (2) is installed on one side of the top of the square screening frame (1). An L-shaped discharge cylinder (5) is installed at the top opening of the discharge cylinder cover plate (2). A feed inlet (6) is opened on the horizontal part of the L-shaped discharge cylinder (5). A dustproof cloth (3) is installed on the other side of the top of the square screening frame (1).

5. The foreign matter removing apparatus for rice processing according to claim 1, wherein A cleaning plate (4) is installed at the notch on one side of the square screening frame (1), and the cleaning plate (4) contacts the horizontal screen plate (9).

6. The foreign matter removing apparatus for rice processing according to claim 1, wherein An inclined guide plate (8) is installed on one side of the inner cavity of the square screening frame (1). The lowest end of the inclined guide plate (8) is in contact with one end of the horizontal screen plate (9) and is provided with an arc transition connection.

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