Multidirectional movable conical screening mechanism and unprocessed grain impurity removing equipment

Abstract

The utility model relates to the technical field of grain processing, and particularly discloses a multidirectional movable type conical screening mechanism and unprocessed grain impurity removing equipment, the multidirectional movable type conical screening mechanism comprises a conical screen installed in a screening box, and an installation base is arranged on the upper portion of the conical screen. A rotation driving assembly for controlling the conical screen to rotate is arranged on the mounting seat; and a swing driving assembly for controlling the conical screen to swing left and right is arranged at the bottom of the screening box. When grain materials are screened, the rotation driving assembly controls the conical screen to rotate, the grain materials with the small particle size penetrate through screen holes in the side wall of the conical screen to enter the screening box, impurities with the large particle size are intercepted in the conical screen, and in the screening process, the swing driving assembly controls the conical screen to shake left and right in the screening box, so that the impurities are separated from the conical screen. Materials in the conical screen are continuously shaken, accumulation of the materials is avoided, and the screening efficiency of the materials is improved.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, specifically a multi-directional movable conical screening mechanism and a raw grain impurity removal device. Background Technology

[0002] Grain screening is a crucial step in agricultural production. It involves cleaning harvested grains to remove impurities, foreign objects, and substandard grains, thereby improving grain quality and safety. The purposes of grain screening include: Impurity removal: Removing non-grain impurities such as weed seeds, straw, sand, and clods of soil from the grains. Grading: Grading grains according to size, shape, and weight to meet different processing and market demands. Quality improvement: Removing diseased, moldy, damaged, and immature grains to improve the overall quality of the grain. Food safety assurance: Removing grains that may contain pests, pesticide residues, and other toxic or harmful substances to ensure food safety.

[0003] Currently, after grain harvesting, impurities such as stones and sand are often mixed into the grain, affecting its overall quality. Therefore, grain screening machines are usually used to clean the grain and separate large impurities such as stones and sand. However, in the operation of existing drum-type grain screening machines, although the screen cylinder is movably installed in the screening machine, the angle of the screen cylinder cannot be adjusted according to different materials and different cleaning requirements. Grain entering the screen cylinder often accumulates at the bottom of the screen, resulting in poor grain flow in the screen mesh. Impurities and grain cannot be fully separated, leading to unsatisfactory screening effect and low screening efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a multi-directional movable conical screening mechanism and a grain impurity removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional movable conical screening mechanism, comprising a conical screen installed in a screening box, the conical screen having a funnel-shaped structure, a mounting base provided at the upper part of the conical screen, the side of the mounting base being movably connected to the inner wall of the screening box, the conical screen being rotatably connected to the mounting base, and a rotation drive assembly for controlling the rotation of the conical screen being provided on the mounting base; a swing drive assembly for controlling the left and right swing of the conical screen being provided at the bottom of the screening box, the swing drive assembly comprising a guide rail fixedly installed inside the screening box, a sliding sleeve slidably installed on the guide rail, and a drive mechanism for controlling the sliding sleeve to slide left and right along the guide rail, the sliding sleeve being movably connected to the lower side of the conical screen, and the drive end of the drive mechanism being connected to the sliding sleeve through an elastic connecting rod.

[0006] As a further embodiment of this utility model: two connecting seats are symmetrically arranged on the left and right sides of the mounting base, and the connecting seats are movably connected to the inner wall of the screening box through universal joints.

[0007] As a further embodiment of this utility model: the rotation drive assembly includes a gear ring fixedly mounted on the upper part of the conical screen, a drive gear rotatably mounted on the mounting base, and a rotary motor fixedly mounted on the mounting base. The output end of the rotary motor is connected to the drive gear, and the drive gear meshes with the gear ring.

[0008] As a further improvement of this utility model: the upper part of the conical screen is provided with an opening for material to enter, and the grain material enters the interior of the conical screen through the opening. The bottom of the conical screen is provided with a discharge port, and a discharge valve is installed on the discharge port.

[0009] As a further embodiment of this utility model: the driving mechanism includes a driving screw rotatably mounted on the bottom of the screening box and a screw sleeve slidably mounted on the bottom of the screening box. The screw sleeve is threadedly connected to the driving screw and is also connected to the elastic connecting rod.

[0010] As a further improvement of this utility model: a drive motor is also installed at the bottom of the screening box. The drive motor is connected to the drive screw through a gearbox and has a forward and reverse rotation motor structure.

[0011] As a further improvement of this utility model: the screening box is provided with a feed inlet, the lower end of which extends into the conical screen, and a gap is left between the lower end of the feed inlet and the inner wall of the conical screen.

[0012] A grain impurity removal device includes the aforementioned multi-directional movable conical screening mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up a conical screen with multi-directional movement inside the screening box. When screening grain materials, the rotation drive component controls the conical screen to rotate, so that the grain materials with smaller particle size pass through the screen holes on the side wall of the conical screen and enter the screening box. The impurities with larger particle size are trapped inside the conical screen. During the screening process, the swing drive component controls the conical screen to swing left and right inside the screening box, so that the material inside the conical screen is constantly shaken, avoiding the accumulation of material and improving the screening efficiency of the material. Attached Figure Description

[0014] Figure 1 Schematic diagram of the structure of the grain impurity removal equipment Figure 1 ;

[0015] Figure 2 This is a schematic diagram of a multi-directional movable conical screening mechanism;

[0016] Figure 3 Schematic diagram of the structure of the grain impurity removal equipment Figure 2 ;

[0017] Figure 4 This is a cross-sectional view of the grain impurity removal equipment;

[0018] Figure 5 This is a front view of a multi-directional movable conical screening mechanism.

[0019] In the diagram: 10-screening box, 11-feed inlet, 12-guide rail, 121-sliding sleeve, 13-elastic connecting rod, 20-conical screen, 21-mounting base, 211-connecting spring, 212-rotary motor, 213-drive gear, 214-gear ring, 22-discharge port, 221-discharge valve, 23-connecting base, 30-drive mechanism, 31-drive screw, 32-screw sleeve, 33-drive motor, 34-gear box. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 In this embodiment of the present invention, a multi-directional movable conical screening mechanism includes a conical screen 20 installed in a screening box 10. The conical screen 20 has a funnel-shaped structure. A mounting base 21 is provided on the upper part of the conical screen 20. The side of the mounting base 21 is movably connected to the inner wall of the screening box 10. The conical screen 20 is rotatably connected to the mounting base 21. A rotation drive assembly for controlling the rotation of the conical screen 20 is provided on the mounting base 21. A swing drive assembly for controlling the left and right swing of the conical screen 20 is provided at the bottom of the screening box 10. The swing drive assembly includes a guide rail 12 fixedly installed inside the screening box 10. The device includes a sliding sleeve 121 slidably mounted on the guide rail 12 and a drive mechanism 30 that controls the sliding sleeve 121 to slide left and right along the guide rail 12. The sliding sleeve 121 is movably connected to the lower side of the conical screen 20. The drive end of the drive mechanism 30 is connected to the sliding sleeve 121 through an elastic connecting rod 13. When the drive mechanism 30 controls the sliding sleeve 121 to slide left and right along the guide rail 12, the conical screen 20 sways left and right inside the screening box 10 and rotates under the control of the rotation drive component during the swaying process. This allows the conical screen 20 to move in multiple directions during the screening process, effectively improving the efficiency of the conical screen 20 in removing impurities from grains.

[0022] In this embodiment of the application, two connecting seats 23 are symmetrically arranged on the left and right sides of the mounting base 21. The connecting seats 23 are movably connected to the inner wall of the screening box 10 through universal joints (not shown in the figure). The conical screen 20 sways left and right inside the screening box 10 with the connecting seats 23 as the center.

[0023] In this embodiment, the rotation drive assembly includes a gear ring 214 fixedly mounted on the upper part of the conical screen 20, a drive gear 213 rotatably mounted on the mounting base 21, and a rotary motor 212 fixedly mounted on the mounting base 21. The output end of the rotary motor 212 is connected to the drive gear 213, and the drive gear 213 meshes with the gear ring 214. After the rotary motor 212 is started, it controls the conical screen 20 to rotate on the mounting base 21 through the drive gear 213 and the gear ring 214.

[0024] It should be noted that, in this embodiment, the upper part of the conical screen 20 is provided with an opening for material to enter. The grain material enters the interior of the conical screen 20 through the opening. The bottom of the conical screen 20 is provided with a discharge port 22, and a discharge valve 221 is installed on the discharge port 22. During the screening process, the grain material passes through the screen holes on the side wall of the conical screen 20 and enters the screening box 10. Larger particles are trapped inside the conical screen 20. After screening is completed, the discharge valve 221 is opened, and the impurities are discharged from the discharge port 22. In addition, in this embodiment, the side of the discharge valve 221 is movably connected to the sliding sleeve 121, and the movable connection can be a universal joint.

[0025] like Figure 3 As shown, the bottom of the screening box 10 is provided with a discharge port for discharging the screened grain material. Further, the driving mechanism 30 includes a driving screw 31 rotatably mounted on the bottom of the screening box 10 and a threaded sleeve 32 slidably mounted on the bottom of the screening box 10. The threaded sleeve 32 is threadedly connected to the driving screw 31 and is also connected to the elastic connecting rod 13. When the driving screw 31 rotates, the threaded sleeve 32 slides laterally along the bottom of the screening box 10, thereby driving the sliding sleeve 121 to slide along the guide rail 12 via the elastic connecting rod 13. Notably, the guide rail 12 has an arc-shaped rod structure, and the elastic connecting rod 13 adaptively adjusts its length during the sliding of the sliding sleeve 121 along the guide rail 12.

[0026] Furthermore, in this embodiment, a drive motor 33 is also installed at the bottom of the screening box 10. The drive motor 33 is connected to the drive screw 31 through a gearbox 34. The drive motor 33 is a forward and reverse motor structure. After the drive motor 33 starts, it controls the drive screw 31 to rotate clockwise and counterclockwise intermittently, thereby driving the sliding sleeve 121 to slide left and right along the guide rail 12, causing the conical screen 20 to sway left and right.

[0027] Please refer to it again. Figure 1 , Figure 2 as well as Figure 4 The screening box 10 is provided with a feed inlet 11, the lower end of which extends into the conical screen 20, and a gap is left between the lower end of the feed inlet 11 and the inner wall of the conical screen 20. The feed inlet 11 is used to add grain material into the conical screen 20. The purpose of setting the gap is to avoid the feed inlet 11 restricting the left and right swaying of the conical screen 20. In addition, one end of the mounting base 21 is also connected to the screening box 10 through at least one connecting spring 211. The connecting spring 211 is used to improve the stability of the conical screen 20 when it sways.

[0028] This embodiment also discloses a grain impurity removal device, which includes the above-mentioned multi-directional movable conical screening mechanism.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-directional mobile cone screening mechanism comprising a conical screen (20) installed in a screening box (10), said conical screen (20) being in the form of a funnel, characterized in that, The upper part of the conical screen (20) is provided with a mounting seat (21), the side of the mounting seat (21) is movably connected with the inner wall of the screening box (10), the conical screen (20) is rotatably connected with the mounting seat (21), and the mounting seat (21) is provided with a rotating driving assembly for controlling the rotation of the conical screen (20); the bottom of the screening box (10) is provided with a swinging driving assembly for controlling the left-right swinging of the conical screen (20), the swinging driving assembly comprises a guide rail (12) fixedly installed in the interior of the screening box (10), a sliding sleeve (121) slidably installed on the guide rail (12), and a driving mechanism (30) for controlling the left-right sliding of the sliding sleeve (121) along the guide rail (12), the sliding sleeve (121) is movably connected with the lower side of the conical screen (20), and the driving end of the driving mechanism (30) is connected with the sliding sleeve (121) through an elastic connecting rod (13).

2. The multi-way, live, cone screen mechanism of claim 1, wherein, Two connecting seats (23) are symmetrically arranged on the left and right sides of the mounting seat (21), and the connecting seats (23) are movably connected with the inner wall of the screening box (10) through universal joints.

3. The multi-way, live, cone screen mechanism of claim 1, wherein, The rotating driving assembly comprises a gear ring (214) fixedly installed on the upper part of the conical screen (20), a driving gear (213) rotatably installed on the mounting seat (21), and a rotary motor (212) fixedly installed on the mounting seat (21), the output end of the rotary motor (212) is connected with the driving gear (213), and the driving gear (213) is meshed with the gear ring (214).

4. The multi-way, live, cone screen mechanism of claim 1, wherein, The upper part of the conical screen (20) is provided with an opening for the material to enter, the grain material enters the interior of the conical screen (20) through the opening, the bottom of the conical screen (20) is provided with a discharge port (22), and a discharge valve (221) is installed on the discharge port (22).

5. The multi-way, live, cone screen mechanism of claim 1, wherein, The driving mechanism (30) comprises a driving screw (31) rotatably installed at the bottom of the screening box (10) and a screw sleeve (32) slidably installed at the bottom of the screening box (10), the screw sleeve (32) is threadedly connected with the driving screw (31), and the screw sleeve (32) is connected with the elastic connecting rod (13).

6. The multi-way, live, cone screening mechanism of claim 5, wherein, The bottom of the screening box (10) is further provided with a driving motor (33), the driving motor (33) is in transmission connection with the driving screw (31) through a gear box (34), and the driving motor (33) is a forward and reverse motor structure.

7. The multi-way, live, cone screen mechanism of claim 1, wherein, The screening box (10) is provided with a feeding port (11), the lower end of the feeding port (11) extends into the conical screen (20), and a gap is left between the lower end of the feeding port (11) and the inner wall of the conical screen (20).

8. A raw grain cleaning apparatus characterized by comprising: The application further provides a multi-directional movable conical screening mechanism comprising the above-mentioned conical screening mechanism.

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