Anti-jamming sieve cylinder structure of feed primary screen

Abstract

This utility model discloses an anti-jamming screen cylinder structure for a feed primary cleaning screen, relating to the field of feed screening technology. The utility model includes a fixed cylinder, with a primary screening cylinder fixedly connected to one side inside the fixed cylinder. A loosening assembly is installed inside the primary screening cylinder, including a rotating rod disposed within the primary screening cylinder. This utility model utilizes the cooperation between the spiral conveying blades in the loosening assembly and the rotating rod, which, driven by a motor, continuously rotates, continuously conveying and dispersing the feed at the top of the primary screening cylinder upwards, effectively avoiding the problem of screen clogging caused by feed accumulation due to gravity. This dynamic loosening process significantly improves the flowability of the feed, ensuring continuous and efficient screening, and reducing the risk of jamming. The dust collection assembly, through the negative pressure generated by the suction fan, draws the dust generated during screening into the dust collection box via a dust collection hood and manifold. After the filter screen intercepts the dust, clean air is discharged.

Description

Technical Field

[0001] This utility model belongs to the field of feed screening technology, and in particular relates to an anti-jamming screen cylinder structure for a feed primary cleaning screen. Background Technology

[0002] Feed is food used to provide animals with the necessary nutrients during the rearing process. Depending on the animal species, production purpose, and rearing stage, the composition, type, and formula of the feed will vary. To ensure the quality, safety, and processing efficiency of the feed, a sieve is used for initial cleaning and screening.

[0003] Existing screen cylinder structures mostly employ fixed screens or a single rotating structure. When feed enters the screen cylinder, it easily accumulates at the top due to gravity and inertia. Its poor flowability exacerbates this accumulation. Accumulated feed hinders screening, easily causing blockages and jamming. Furthermore, during the initial feed cleaning process, fine particles in the raw material generate a large amount of dust during screening. Existing screen cylinder structures typically lack effective sealing or dust collection designs, causing dust to escape into the working environment, polluting the surrounding area and potentially harming the health of operators. In addition, the escaped dust falls back to the screen cylinder surface under gravity, gradually adhering to the inner wall of the screen holes. Over long-term operation, the effective aperture of the screen holes shrinks, screening efficiency decreases, and the risk of screen cylinder blockage and jamming is further increased.

[0004] To address this issue, we provide an anti-jamming screen cylinder structure for a feed pre-cleaning screen. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-jamming screen cylinder structure for feed pre-cleaning screens. By combining the loosening component and the dust collection component, the problem of clogging and jamming that easily occurs in the existing screen cylinder structure during use is solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an anti-jamming screen cylinder structure for a feed primary cleaning screen, comprising a fixed cylinder, with a primary screening cylinder fixedly connected to one side inside the fixed cylinder; a material loosening component is provided inside the primary screening cylinder, the material loosening component includes a rotating rod disposed inside the primary screening cylinder, and spiral conveying blades fixedly connected to the surface of the rotating rod; a dust collection component is provided at the top of the fixed cylinder, the dust collection component includes a dust collection box disposed at the top of the fixed cylinder, and a manifold connected to one side of the dust collection box.

[0008] The present invention is further configured such that the loosening assembly includes a top cover fixedly connected to the top of the fixed cylinder, a bracket fixedly connected to the top of the top cover, a first protective filter cylinder fixedly connected to the bottom of the bracket, and a drive motor fixedly connected to the top of the first protective filter cylinder.

[0009] The present invention is further configured such that the dust collection assembly includes a filter screen fixedly connected to one side of the inside of the dust collection box, a fan connected to the top of the dust collection box, and a dust collection cover connected to the top of the manifold.

[0010] The present invention is further configured such that a feed hopper is connected to the top of the top cover, and the output end of the drive motor extends to the bottom of the first protective filter cylinder.

[0011] The present invention is further configured such that a support rod is movably connected to one side of the fixed cylinder, and a drive rod is fixedly connected to the other side of the fixed cylinder.

[0012] The present invention is further configured such that a second protective filter cylinder is provided on one side of the drive rod, and a servo motor is fixedly connected to one side inside the second protective filter cylinder.

[0013] The present invention is further configured such that a guide cover is provided on the bottom surface of the primary screening cylinder, and the guide cover is fixedly connected to the fixed cylinder.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model utilizes a spiral conveying blade in the loosening assembly, which, in conjunction with a rotating rod, continuously rotates under the drive of a motor. This continuously conveys and disperses the feed from the top of the primary screening cylinder, effectively preventing screen clogging caused by gravity accumulation. This dynamic loosening process significantly improves feed flowability, ensures continuous and efficient screening, and reduces the risk of jamming. The dust collection assembly uses negative pressure generated by a fan to draw dust generated during screening into a dust collection box via a dust collection hood and manifold. After the filter screen intercepts the dust, clean air is discharged. This design not only reduces dust adhesion within the screen holes, preventing screen hole diameter reduction, but also improves the working environment and avoids health hazards to operators from dust.

[0016] 2. The first and second protective filter cartridges of this utility model protect the drive motor and servo motor respectively, preventing dust from entering and affecting the equipment's lifespan. At the same time, the rotating rod and the top cover, as well as the drive motor output end and the first protective filter cartridge, are all connected by sealed bearings, further enhancing the structure's sealing performance and ensuring that dust will not escape to the outside of the equipment. A removable sealing plate is provided on the rear side of the dust collection box, facilitating the regular cleaning of accumulated dust. The design of the servo motor driving the fixed cylinder to rotate as a whole allows impurities at the top of the primary screening cylinder to be poured out through the feed hopper, simplifying the cleaning process and improving equipment maintenance efficiency.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional diagram of the anti-jamming screen cylinder structure of a feed pre-cleaning screen.

[0020] Figure 2 This is a cross-sectional view of the fixed cylinder in the anti-jamming screen cylinder structure of a feed primary cleaning screen.

[0021] Figure 3 This is a cross-sectional view of the primary screening cylinder in an anti-jamming screening cylinder structure for a feed primary cleaning screen.

[0022] Figure 4 This is a cross-sectional view of the dust collection box in the anti-jamming screen cylinder structure of a feed primary cleaning screen.

[0023] Figure 5 This is a rear view of the anti-jamming screen cylinder structure of a feed pre-cleaning screen.

[0024] In the attached diagram: 1. Fixed cylinder; 2. Primary screening cylinder; 3. Loosening assembly; 301. Rotating rod; 302. Screw conveyor blades; 303. Top cover; 304. Support; 305. First protective filter cartridge; 306. Drive motor; 4. Dust collection assembly; 401. Dust collection box; 402. Manifold; 403. Filter screen; 404. Fan; 405. Dust collection hood; 5. Feed hopper; 6. Drive rod; 7. Second protective filter cartridge. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] For a specific implementation example, please refer to Implementation Example 1. Figures 1-5This utility model relates to an anti-jamming screen cylinder structure for a feed primary cleaning screen, comprising a fixed cylinder 1, with a primary screening cylinder 2 fixedly connected to one side inside the fixed cylinder 1. The primary screening cylinder 2 is used for primary cleaning of feed. A loosening assembly 3 is provided inside the primary screening cylinder 2, including a rotating rod 301 disposed inside the primary screening cylinder 2 and spiral conveying blades 302 fixedly connected to the surface of the rotating rod 301. The spiral conveying blades 302 continuously convey the feed at the top of the primary screening cylinder 2 to a higher position, preventing accumulation and promoting fluid screening to reduce clogging. A dust collection device is provided at the top of the fixed cylinder 1. Component 4, the dust collection component 4 includes a dust collection box 401 disposed at the top of the fixed cylinder 1. A sealing plate is fixedly connected to the rear side of the dust collection box 401 by bolts. A manifold 402 is connected to one side of the dust collection box 401. The manifold 402 extends into the fixed cylinder 1 from the side away from the dust collection box 401. Its extension ends are located at the top and bottom of the primary screening cylinder 2, respectively. The extension ends are fixedly connected to the fixed cylinder 1 by a sealing structure, such as a sealing ring or a sealing gasket. A barrier mesh is fixedly connected to the extension end of the manifold 402. Its aperture allows dust to pass through and blocks feed.

[0027] For a specific embodiment two, please refer to Figures 1-5 Based on the first specific embodiment, the loosening assembly 3 further includes a top cover 303 fixedly connected to the top of the fixed cylinder 1, a bracket 304 fixedly connected to the top of the top cover 303, a first protective filter cartridge 305 fixedly connected to the bottom of the bracket 304, and a drive motor 306 fixedly connected to the top of the first protective filter cartridge 305. The dust collection assembly 4 further includes a filter screen 403 fixedly connected to one side inside the dust collection box 401, a suction fan 404 connected to the top of the dust collection box 401, the bottom of the dust collection box 401 fixedly connected to the top cover 303, a dustproof net fixedly connected to the air outlet of the suction fan 404, a dust collection cover 405 connected to the top of the manifold 402, a feed hopper 5 connected to the top of the top cover 303, the output end of the drive motor 306 extending to the bottom of the first protective filter cartridge 305, and the top of the rotating rod 301 extending to the top of the top cover 303 and fixedly connected to the output end of the drive motor 306. The fixed cylinder 1 is connected to the top cover 303 and the output end of the drive motor 306 and the first protective filter cartridge 305 through sealed bearings. A support rod is movably connected to one side of the fixed cylinder 1, and a drive rod 6 is fixedly connected to the other side of the fixed cylinder 1. A second protective filter cartridge 7 is provided on one side of the drive rod 6. A servo motor is fixedly connected to one side of the inside of the second protective filter cartridge 7. The support rod and the fixed cylinder 1 are movably connected through bearings. The output end of the servo motor extends to the second protective filter cartridge 7 and is fixedly connected to the drive rod 6. The output end of the servo motor and the second protective filter cartridge 7 are movably connected through sealed bearings. Mounting plates are provided on both sides of the fixed cylinder 1. Mounting holes are opened on one side of the mounting plates. The mounting plates are fixedly connected to the support rod and the second protective filter cartridge 7. A guide cover is provided on the bottom surface of the primary screening cylinder 2. The guide cover is fixedly connected to the fixed cylinder 1.

[0028] The operation process of this embodiment is as follows: After the drive motor 306 starts, it drives the rotating rod 301 and the spiral conveying blades 302 to rotate, continuously pushing and dispersing the feed accumulated at the top of the primary screening cylinder 2, so that the feed is evenly distributed and continuously falls through the screen holes. The dynamic stirring of the spiral conveying blades 302 effectively breaks the static accumulation of feed and avoids local blockage. After the feed is screened by the primary screening cylinder 2, qualified particles fall through the screen holes into the guide hood and are discharged by the guide hood; large particles or impurities that have not passed the screen remain in the primary screening cylinder 2 and move to the top with the spiral blades, and can finally be discharged from the feed hopper 5 through the rotating fixed cylinder 1.

[0029] When the suction fan 404 is working, the dust in the screening area is drawn into the dust collection box 401 through the dust collection hood 405 and the manifold 402. After the filter screen 403 blocks the dust, clean air is discharged through the suction fan 404. This process continues to ensure that the dust does not fall back onto the surface of the screen cylinder, avoiding dust adhesion that could cause the screen cylinder to become clogged and jammed. The servo motor drives the fixed cylinder 1 to rotate half a turn through the drive rod 6, so that the top of the primary screening cylinder 2 faces the feed hopper 5, making it easier to empty and remove residual impurities, further reducing the difficulty of manual cleaning.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feed preliminary cleaning screen anti-jamming screen cylinder structure comprising a fixed cylinder (1), characterized in that: A primary screening cylinder (2) is fixedly connected to one side inside the fixed cylinder (1); The primary screening cylinder (2) is provided with a loosening component (3), which includes a rotating rod (301) disposed inside the primary screening cylinder (2) and a spiral conveying blade (302) fixedly connected to the surface of the rotating rod (301). The top of the fixed cylinder (1) is provided with a dust collection assembly (4), which includes a dust collection box (401) located on the top of the fixed cylinder (1) and a manifold (402) connected to one side of the dust collection box (401).

2. The anti-jamming sieve cylinder structure of a feed preliminary cleaning sieve according to claim 1, characterized in that, The loosening assembly (3) further includes a top cover (303) fixedly connected to the top of the fixed cylinder (1), a bracket (304) fixedly connected to the top of the top cover (303), a first protective filter cylinder (305) fixedly connected to the bottom of the bracket (304), and a drive motor (306) fixedly connected to the top of the first protective filter cylinder (305).

3. The anti-jamming sieve cylinder structure of a feed preliminary cleaning sieve according to claim 1, characterized in that, The dust collection assembly (4) also includes a filter (403) fixedly connected to one side of the dust collection box (401), a blower (404) connected to the top of the dust collection box (401), and a dust collection cover (405) connected to the top of the manifold (402).

4. The anti-jamming sieve cylinder structure of a feed preliminary cleaning sieve according to claim 2, characterized in that, The top of the top cover (303) is connected to the feed hopper (5), and the output end of the drive motor (306) extends to the bottom of the first protective filter cartridge (305).

5. The anti-jamming sieve cylinder structure of a feed preliminary cleaning sieve according to claim 1, characterized in that, A support rod is movably connected to one side of the fixed cylinder (1), and a drive rod (6) is fixedly connected to the other side of the fixed cylinder (1).

6. The anti-jamming screen cylinder structure of a feed primary cleaning screen according to claim 5, characterized in that, A second protective filter cylinder (7) is provided on one side of the drive rod (6), and a servo motor is fixedly connected to one side inside the second protective filter cylinder (7).

7. The anti-jamming screen cylinder structure of a feed pre-cleaning screen according to claim 1, characterized in that, The bottom surface of the primary screening cylinder (2) is provided with a material guide cover, which is fixedly connected to the fixed cylinder (1).

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