A feed screening machine with a self-cleaning screen structure
The feed screening machine with a self-cleaning screen structure uses a cleaning component to automatically clean the screen, solving the problems of low material dispersion and clogging, improving screening efficiency and continuous operation capability, and is suitable for screening feed containing oil or protein.
Patent Information
- Application Number
- CN202522103625.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
The existing vibrating screens used for feed grading have low material dispersion during the screening process, resulting in a reduction in the effective contact area of the screen and easy clogging. In particular, feed ingredients containing oil or protein are more likely to adhere in high humidity environments, leading to continuous clogging.
Design a feed screening machine with a self-cleaning screen structure. The cleaning components include rolling wheels, telescopic rods, push plates, push cylinders, and cleaning brushes. A compression spring provides continuous elasticity, making the brushes fit tightly against the screen surface. The push cylinder drives automatic cleaning to avoid clogging.
It achieves efficient removal of particles clogging the screening mesh, improves screening efficiency, reduces equipment downtime, and lowers manual intervention costs. It is suitable for screening feed containing fine particles or sticky ingredients.
Smart Images
Figure CN224673190U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a feed screening machine with a self-cleaning screen structure. Background Technology
[0002] In the feed processing and production process, screening is a key step in ensuring product quality. Its main function is to separate feed raw materials of different particle sizes, remove impurities, and ensure that the finished product has a uniform particle size to meet the feeding needs of different livestock species.
[0003] Most vibrating screens used for feed grading currently employ eccentric wheels, eccentric blocks, or eccentric shafts for excitation, achieving material separation through single-degree-of-freedom screening motion. This structure fails to allow feed to be quickly and evenly distributed across the entire screen, resulting in reduced material dispersion and a decreased effective contact area between the feed and the screen. This not only reduces screening efficiency but also easily leads to feed accumulation on the screen surface, causing screen clogging. This is especially problematic for feed ingredients containing sticky components such as oils and proteins, or during production in high-humidity environments, where materials easily adhere to the screen surface and embed themselves in the screen holes, causing persistent clogging.
[0004] Therefore, it is necessary to invent a feed screening machine with a self-cleaning screen structure to solve the above problems. Utility Model Content
[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a feed screening machine with a self-cleaning screen structure, which can clean the screen and prevent clogging.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a feed screening machine with a self-cleaning screen structure, including a screening box, a support frame installed at the bottom of the screening box, an inlet pipe installed on one side of the screening box, the outlet end of the inlet pipe located above the screening box, a cleaning component installed at one end of the screening box, the cleaning component moving at the top of the screening box, and a screening screen provided inside the screening box; The screening box is equipped with movable grooves on both sides, and the two ends of the cleaning component are installed and positioned in the movable grooves. The other end of the screening box is provided with a material dispensing port, and the bottom is provided with a material outlet. The cleaning component includes rolling wheels installed in the moving grooves on both sides. One end of each rolling wheel extends, and a fixed rod is provided at the top of the extended portion. A telescopic rod is installed inside the fixed rod. A push plate is provided between the tops of the two telescopic rods. A pushing cylinder is connected to one side of the push plate. The pushing cylinder is fixedly installed on one side of the outer wall of the screening box. A mounting plate is connected to the bottom of the push plate. A cleaning plate is provided inside the mounting plate. A compression spring is installed between the bottom of the cleaning plate and the inner bottom of the mounting plate. The compression spring presses the bottom of the cleaning plate against the top of the screening screen.
[0007] Preferably, the fixed rod has a telescopic groove, the telescopic rod extends and retracts within the telescopic groove, and the telescopic rod and the telescopic groove are engaged by a limiting structure. The mounting plate has a compression groove, the cleaning plate is installed in the compression groove, the outer side of the end of the cleaning plate has a limiting strip, the opening of the compression groove has a limiting frame matching the limiting strip, the bottom of the cleaning plate has multiple cleaning bristles, the multiple cleaning bristles are evenly spaced on the bottom of the cleaning plate, and multiple compression springs are evenly spaced between the bottom of the compression groove and the bottom of the cleaning plate, and the multiple cleaning bristles contact the screening screen.
[0008] Preferably, one end of the pushing cylinder extends a pushing rod, the end of the pushing rod is fixed to one side of the pushing plate, and the bottom of the pushing cylinder is fixed to one side of the outer wall of the screening box by a support assembly.
[0009] Preferably, the support assembly includes a support plate fixed to one side of the outer wall of the screening box, reinforcing plates are installed on both sides of the bottom of the support plate, and the top of the support plate supports the push cylinder.
[0010] Preferably, the screening screen is inclined inside the screening box, and the lowest point of the inclination is connected to the material dispensing port. The moving trough is also inclined, and the slope is consistent with that of the screening screen.
[0011] Preferably, a limiting baffle is provided at the opening of the movable groove to restrict the rolling wheel, and the limiting baffle positions the rolling wheel within the movable groove.
[0012] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The cleaning component of this utility model has a cleaning plate with uniformly arranged cleaning bristles at the bottom. Through the continuous elastic force of the compression spring, the bristles are always in close contact with the surface of the screening screen. When the push cylinder drives the push plate to move along the moving groove, the bristles can efficiently sweep away the clogging particles in the screen mesh, avoiding the reduction in screening efficiency caused by screen blockage. 2. The cleaning component of this utility model is powered by a push cylinder and can move back and forth automatically in accordance with the screening rhythm of the screening machine. It does not require manual shutdown for disassembly and cleaning, greatly reducing equipment downtime and improving continuous operation capability. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the screening box of this utility model; Figure 3 This is a schematic diagram of the installation structure of the cleaning component of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the cleaning component of this utility model. Figure 5 This is a schematic diagram of the cleaning plate installation structure of this utility model.
[0015] Explanation of reference numerals in the attached figures: 1. Screening box; 11. Moving trough; 12. Distributor port; 13. Discharge port; 14. Limiting baffle; 2. Support frame; 3. Feed pipe; 4. Cleaning assembly; 41. Rolling wheel; 42. Fixed rod; 421. Telescopic trough; 43. Telescopic rod; 44. Push plate; 45. Push cylinder; 451. Push rod; 46. Mounting plate; 461. Compression trough; 462. Limiting frame; 47. Cleaning plate; 471. Limiting strip; 472. Cleaning brush bristles; 48. Compression spring; 5. Screening mesh; 6. Support assembly; 61. Support plate; 62. Reinforcing plate. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0017] This utility model provides, for example Figure 1-5 The feed screening machine with a self-cleaning screen structure shown includes a screening box 1, a support frame 2 installed at the bottom of the screening box 1, an inlet pipe 3 installed on one side of the screening box 1, the outlet end of the inlet pipe 3 is located above the screening box 1, a cleaning component 4 is also installed at one end of the screening box 1, the cleaning component 4 moves at the top of the screening box 1, and a screening screen 5 is provided inside the screening box 1. Specifically, the screening box 1 has moving grooves 11 installed on both sides, and the two ends of the positioning cleaning component 4 are installed in the moving grooves 11. The other end of the screening box 1 is provided with a material distribution port 12, and the bottom is provided with a material outlet 13. Specifically, the cleaning component 4 includes a rolling wheel 41 installed in the two side moving grooves 11. One end of the rolling wheel 41 extends, and a fixed rod 42 is provided at the top of the extended part. A telescopic rod 43 is installed in the fixed rod 42. A push plate 44 is provided between the tops of the two telescopic rods 43. A push cylinder 45 is connected to one side of the push plate 44. The push cylinder 45 is fixedly installed on one side of the outer wall of the screening box 1. An installation plate 46 is connected to the bottom of the push plate 44. A cleaning plate 47 is provided in the installation plate 46. A compression spring 48 is installed between the bottom of the cleaning plate 47 and the bottom of the inner side of the installation plate 46. The compression spring 48 presses the bottom of the cleaning plate 47 against the top of the screening screen 5.
[0018] Specifically, the fixed rod 42 is provided with a telescopic groove 421, the telescopic rod 43 extends and retracts within the telescopic groove 421, and the telescopic rod 43 and the telescopic groove 421 are matched by a limiting structure. The mounting plate 46 is provided with a compression groove 461, and a cleaning plate 47 is installed in the compression groove 461. A limiting strip 471 is provided on the outer side of the end of the cleaning plate 47. A limiting frame 462 matching the limiting strip 471 is provided at the opening of the compression groove 461. Multiple cleaning bristles 472 are provided at the bottom of the cleaning plate 47. The multiple cleaning bristles 472 are evenly spaced at the bottom of the cleaning plate 47, and multiple compression springs 48 are evenly connected between the bottom of the compression groove 461 and the bottom of the cleaning plate 47. The multiple cleaning bristles 472 contact the screening screen 5.
[0019] Specifically, a push rod 451 extends from one end of the push cylinder 45, the end of the push rod 451 is fixed to one side of the push plate 44, and the bottom of the push cylinder 45 is fixed to one side of the outer wall of the screening box 1 by the support assembly 6.
[0020] Specifically, the support assembly 6 includes a support plate 61 fixed to one side of the outer wall of the screening box 1, reinforcing plates 62 installed on both sides of the bottom of the support plate 61, and a push cylinder 45 supported on the top of the support plate 61.
[0021] Specifically, the screening screen 5 is inclined inside the screening box 1, and the lowest point of the inclination is connected to the material distribution port 12. The moving trough 11 is also inclined, and the slope is the same as that of the screening screen 5.
[0022] Specifically, a limiting baffle 14 is provided at the opening of the moving groove 11 to limit the rolling wheel 41, and the limiting baffle 14 positions the rolling wheel 41 in the moving groove 11.
[0023] Specifically, the support frame 2 is fixed to the bottom of the screening box 1 to ensure that the screening box 1 is placed stably; then the feed pipe 3 is installed on one side of the screening box 1 so that the discharge end of the feed pipe 3 is aligned with the upper part of the screening box 1; then the inclined screening screen 5 is fixed inside the screening box 1 to ensure that the lowest point of the inclined screening screen 5 is aligned with the material outlet 12 at the other end of the screening box 1; at the same time, the moving grooves 11 with the same inclination as the screening screen 5 are installed on both sides of the screening box 1, and the limiting baffles 14 are added at the opening of the moving grooves 11.
[0024] Specifically, a fixing rod 42 is welded to the top of the extension of the roller 41, and a telescopic rod 43 is inserted into the telescopic groove 421 of the fixing rod 42. The tops of the two telescopic rods 43 are then welded and fixed to the push plate 44. The cleaning plate 47 is placed into the compression groove 461 of the mounting plate 46, ensuring that the limiting strip 471 at the end of the cleaning plate 47 is engaged with the limiting frame 462 at the opening of the compression groove 461. Then, multiple compression springs 48 are evenly installed between the bottom of the compression groove 461 and the bottom of the cleaning plate 47. Finally, the mounting plate 46 is fixed to the bottom of the push plate 44. At this time, the compression springs 48 will lift the cleaning bristles 472 at the bottom of the cleaning plate 47. The rollers 41 at both ends of the assembled cleaning component 4 are placed into the moving groove 11, so that the cleaning bristles 472 are in contact with the surface of the screening screen 5.
[0025] Specifically, the support plate 61 is welded to one side of the outer wall of the screening box 1, the reinforcing plates 62 are added to both sides of the bottom of the support plate 61, the push cylinder 45 is fixed to the top of the support plate 61, and finally the end of the push rod 451 of the push cylinder 45 is bolted to one side of the push plate 44 to complete the overall equipment assembly.
[0026] Specifically, after starting the equipment, the feed to be screened is fed into the screening box 1 through the feed pipe 3, and the feed falls on the inclined screening screen 5: feed particles that meet the particle size requirements pass through the mesh of the screening screen 5 and are discharged from the discharge port 13 at the bottom of the screening box 1; feed particles that exceed the standard particle size slide along the inclined screening screen 5 to the distribution port 12 and are discharged, thus realizing automatic distribution.
[0027] Specifically, when the equipment has been running for a certain period of time, the push cylinder 45 is activated: the push rod 451 drives the push plate 44 to move, and the push plate 44 drives the rolling wheel 41 to roll along the moving groove 11 through the telescopic rod 43 and the fixed rod 42; at the same time, the cleaning bristles 472 at the bottom of the cleaning plate 47 are pressed against the screening screen 5 under the pressure of the compression spring 48, and sweep away the clogging particles in the screen holes as the push plate 44 moves; after cleaning is completed, the push cylinder 45 drives the push plate 44 to reset, waiting for the next cleaning cycle.
[0028] In this embodiment, the cleaning bristles 472 at the bottom of the cleaning plate 47 are evenly arranged, and the compression spring 48 can adaptively compensate for the pressure, so that the bristles are always in close contact with the screening mesh 5, which can efficiently sweep out the clogging particles in the mesh, avoiding the decrease in screening efficiency caused by mesh clogging in traditional equipment, and is especially suitable for screening fine particles or feed containing sticky components; the cleaning component 4 is powered by the push cylinder 45, and can automatically reciprocate cleaning in accordance with the screening rhythm, without the need for manual shutdown for disassembly and cleaning, greatly reducing equipment downtime, improving continuous operation capability, and reducing manual intervention costs.
[0029] In this embodiment, the screening screen 5 is tilted, using gravity to allow the feed to slide naturally down the screen surface, avoiding local accumulation and extending the contact time between the material and the screen surface, allowing qualified feed to pass through the mesh fully; substandard material automatically slides to the dispensing port 12, achieving accurate separation of qualified and unqualified material without secondary sorting; the moving trough 11 has the same inclination as the screening screen 5, ensuring that when the cleaning component 4 moves, the cleaning brush 472 can cover the entire surface of the screening screen, with no blind spots, further ensuring stable screening effect.
[0030] In this embodiment, the limiting baffle 14 of the moving groove 11 prevents the rolling wheel 41 from coming off, and the limiting structure of the telescopic rod 43 and the telescopic groove 421, as well as the limiting strip 471 and the limiting frame 462 of the cleaning plate 47, all prevent component misalignment and reduce operational failures; the support plate 61 and the reinforcing plate 62 of the support assembly 6 provide stable support for the pushing cylinder 45, reduce vibration transmission during cylinder operation, prevent equipment components from loosening due to vibration, and extend the service life of the overall equipment.
[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A feed screening machine with a self-cleaning screen structure, characterized in that: Includes a screening box (1), a support frame (2) installed at the bottom of the screening box (1), a feed pipe (3) installed on one side of the screening box (1), the discharge end of the feed pipe (3) is located above the screening box (1), a cleaning component (4) is also installed at one end of the screening box (1), the cleaning component (4) moves on the top of the screening box (1), and a screening screen (5) is provided inside the screening box (1); The screening box (1) is equipped with moving grooves (11) on both sides, and the two ends of the cleaning component (4) are installed and positioned in the moving grooves (11). The other end of the screening box (1) is provided with a material dispensing port (12), and the bottom is provided with a material outlet (13). The cleaning component (4) includes a rolling wheel (41) installed in the moving grooves (11) on both sides. One end of the rolling wheel (41) extends and the top of the extended part is provided with a fixed rod (42). A telescopic rod (43) is installed in the fixed rod (42). A push plate (44) is provided between the tops of the telescopic rods (43) at both ends. A push cylinder (45) is connected to one side of the push plate (44). The push cylinder (45) is fixedly installed on one side of the outer wall of the screening box (1). An installation plate (46) is connected to the bottom of the push plate (44). A cleaning plate (47) is provided in the installation plate (46). A compression spring (48) is installed between the bottom of the cleaning plate (47) and the bottom of the inner side of the installation plate (46). The compression spring (48) presses the bottom of the cleaning plate (47) against the top of the screening screen (5).
2. The feed screening machine with a self-cleaning screen structure according to claim 1, characterized in that: The fixed rod (42) is provided with a telescopic groove (421), the telescopic rod (43) extends and retracts in the telescopic groove (421), and the telescopic rod (43) and the telescopic groove (421) are connected by a limiting structure. The mounting plate (46) is provided with a compression groove (461), the cleaning plate (47) is installed in the compression groove (461), the cleaning plate (47) is provided with a limiting strip (471) on the outer side of the end of the cleaning plate (47), the compression groove (461) is provided with a limiting frame (462) matching the limiting strip (471) at the groove opening, the bottom of the cleaning plate (47) is provided with a plurality of cleaning bristles (472), the plurality of cleaning bristles (472) are evenly spaced on the bottom of the cleaning plate (47), and a plurality of compression springs (48) are evenly spaced between the bottom of the compression groove (461) and the bottom of the cleaning plate (47), and the plurality of cleaning bristles (472) contact the screening screen (5).
3. The feed screening machine with a self-cleaning screen structure according to claim 1, characterized in that: One end of the push cylinder (45) extends a push rod (451), the end of the push rod (451) is fixed to one side of the push plate (44), and the bottom of the push cylinder (45) is fixed to one side of the outer wall of the screening box (1) by a support assembly (6).
4. A feed screening machine with a self-cleaning screen structure according to claim 3, characterized in that: The support assembly (6) includes a support plate (61) fixed to one side of the outer wall of the screening box (1), with reinforcing plates (62) installed on both sides of the bottom of the support plate (61), and the top of the support plate (61) supporting the push cylinder (45).
5. A feed screening machine with a self-cleaning screen structure according to claim 1, characterized in that: The screening screen (5) is inclined inside the screening box (1), and the lowest point of the inclination is connected to the material outlet (12). The moving trough (11) is also inclined, and the slope is consistent with that of the screening screen (5).
6. The feed screening machine with a self-cleaning screen structure according to claim 1, characterized in that: The moving groove (11) is provided with a limiting baffle (14) to restrict the rolling wheel (41) at the groove opening. The limiting baffle (14) positions the rolling wheel (41) in the moving groove (11).