A falling type screening device
By designing an inclined inlet, conveying device, and pushing component for a falling screening device, the problems of material accumulation and blockage were solved, achieving efficient material screening and collection and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KECHEN AUTOMATION TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-02
AI Technical Summary
Existing screening equipment is prone to material accumulation and adhesion during screening, resulting in poor flowability, screen blockage, and reduced screening efficiency and effectiveness. It also lacks an active unblocking or pushing mechanism.
A drop-type screening device was designed, comprising an inclined inlet, a conveying device, a pushing component, and an adjustable inclined component. The conveyor belt uniformly transports materials to the screen, the pushing plate periodically pushes the screened materials, and the inclined support plate adjusts the screen inclination angle to control the material residence time.
It improves screening efficiency and effectiveness, avoids material accumulation, has effective material pushing and collection functions, and optimizes the screening process.
Smart Images

Figure CN224308893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a drop-type screening device, belonging to the technical field of screening equipment. Background Technology
[0002] Currently, screening equipment plays an important role in industrial production, especially in mining, chemical, food processing and other industries that require the grading of solid materials. The main function of screening equipment is to separate particles of different sizes in raw materials to obtain products that meet specific particle size requirements.
[0003] A search revealed a Chinese patent, CN214289329U, which discloses a screening device. In this patent, sand and gravel to be screened are dropped from the mesh end face of a screening platform. Sand and gravel smaller than the mesh openings fall through the mesh into the cavity of the screening platform, allowing for the screening of sand and gravel larger than the mesh openings. The sand and gravel falling into the cavity then land on the mesh structure for secondary screening. Alternatively, sand and gravel to be screened can be dropped into the cavity through a sand inlet channel, falling onto the screen structure. The screen structure separates and screens the sand and gravel, allowing sand and gravel smaller than the mesh openings to fall below the screen structure, allowing for the screening of sand and gravel larger than the mesh openings. However, the material in this patent tends to accumulate and stick together during the falling screening process, exhibiting poor flowability and easy clogging of the screen, affecting screening efficiency and effectiveness. Furthermore, it lacks an active unblocking or pushing mechanism to collect the material. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a falling screening device that can improve screening efficiency and effect, and has a pushing mechanism to effectively collect and push materials.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a falling-type screening device, comprising:
[0006] Mounting bracket;
[0007] An input rack is mounted on the mounting bracket. The input rack has an input inlet, an input outlet, and an input channel, and the input channel is connected to the input inlet and the input outlet, respectively.
[0008] A screening screen, which is mounted on the mounting bracket and positioned below the input outlet;
[0009] A push component, comprising a partition grid and a push plate, wherein the partition grid comprises a plurality of partition columns, a partition channel is provided between two adjacent partition columns, and the distance between two adjacent partition columns is equal;
[0010] The push plate is provided with a plurality of push teeth adapted to the dividing channel, and the push plate moves on the dividing grid.
[0011] Furthermore, in order to reduce material retention, the input channel is provided with an inclined surface that slopes toward the input outlet.
[0012] Furthermore, in order to ensure the screening effect, a falling screening device also includes a conveying device. The conveying device is disposed between the input outlet and the screening screen. The conveying device includes a first conveying roller, a second conveying roller, and a conveyor belt. The first conveying roller and the second conveying roller are rotatably mounted on the mounting bracket. The conveyor belt is adapted to connect the first conveying roller and the second conveying roller.
[0013] Furthermore, the conveying device also includes a motor bracket and a drive motor. The motor bracket is mounted on the mounting bracket, and the drive motor is mounted on the motor bracket. The movable end of the drive motor is connected to the first conveying roller.
[0014] Furthermore, a falling screening device also includes an inclined assembly, which includes four fixed legs and an inclined support plate. The four fixed legs are installed at the bottom of the mounting bracket, and the inclined support plate is hinged to the fixed bracket through four connecting seats. The inclined support plate can be rotated to adjust the inclination angle.
[0015] Furthermore, a discharge rack is provided on one side of the screening screen, and the discharge rack is provided with a discharge channel.
[0016] Furthermore, to improve collection efficiency, the pushing component also includes a pushing motor, which is mounted on the inclined support plate, and the movable end of the pushing motor is connected to the pushing plate.
[0017] By adopting the above technical solution, this utility model has the following beneficial effects:
[0018] In this invention, the material enters from the inclined inlet of the feeding rack, slides down the inclined surface to the feeding outlet, and falls onto the conveyor belt. The drive motor of the conveying device starts, driving the conveyor belt to rotate and evenly convey the material to the screen. The material falls freely from the end of the conveyor belt onto the surface of the screen. Fine particles fall through the screen holes into the separating channel, while larger particles remain on the screen. The push plate of the push motor reciprocates periodically, and the push teeth embed into the separating channel of the separating grid, pushing the screened material out of the separating channel and collecting it. Unscreened material is manually sorted and discharged through the discharge channel to avoid accumulation.
[0019] The tilting support plate of the tilting component is adjustable in angle, and the material residence time can be controlled by changing the screen tilt angle to optimize screening efficiency. Attached Figure Description
[0020] Figure 1 This is a perspective view of a falling material screening device according to the present invention;
[0021] Figure 2 This is a front view of a drop-type screening device according to the present invention;
[0022] Figure 3 This is a left view of a falling material screening device according to the present invention;
[0023] Figure 4 This is a top view of a drop-type screening device according to the present invention;
[0024] Figure 5 This is a schematic diagram of the structure of the separator and push plate of this utility model. Detailed Implementation
[0025] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0026] like Figure 1-5 As shown, a falling material screening device includes:
[0027] Mounting bracket 1;
[0028] The input frame 2 is installed on the mounting bracket 1. The input frame 2 is provided with an input inlet 21, an input outlet and an input channel 22. The input channel 22 is connected to the input inlet 21 and the input outlet respectively.
[0029] Screening screen 3 is installed on mounting bracket 1 and is located below the inlet / outlet;
[0030] The pushing component includes a partition grid and a pushing plate 43. The partition grid includes multiple partition columns 41, with a partition channel 42 between adjacent partition columns 41. The distance between adjacent partition columns 41 is equal. The partition grid is installed below the screening screen 3.
[0031] The pusher plate 43 is provided with multiple push teeth 431 that are adapted to the separating channel 42, and the pusher plate 43 moves on the separating grid. The pusher plate can reciprocate along the length of the separating grid.
[0032] Specifically, such as Figure 5 As shown, the input channel 22 is provided with an inclined surface 221 that slopes toward the input outlet.
[0033] Specifically, such as Figure 1-5As shown, a falling screening device also includes a conveying device, which is set between the input outlet and the screening screen 3. The conveying device includes a first conveying roller 51, a second conveying roller 52 and a conveyor belt 53. The first conveying roller 51 and the second conveying roller 52 are both rotatably mounted on the mounting bracket 1. The conveyor belt 53 is adapted to connect the first conveying roller 51 and the second conveying roller 52.
[0034] In this embodiment, both the first conveying roller 51 and the second conveying roller 52 are mounted on the mounting bracket 1 via bearing seats.
[0035] Specifically, such as Figure 1-4 As shown, the conveying device also includes a motor bracket 54 and a drive motor 55. The motor bracket 54 is mounted on the mounting bracket 1, and the drive motor 55 is mounted on the motor bracket 54. The movable end of the drive motor 55 is connected to the first conveying roller 51.
[0036] Specifically, such as Figure 1-4 As shown, a falling screening device also includes an inclined component, which includes four fixed legs 61 and an inclined support plate 62. The four fixed legs 61 are installed at the bottom of the mounting bracket 1, and the inclined support plate 62 is hinged to the fixed bracket through four connecting seats 63. The inclined support plate 62 can be rotated to adjust the inclination angle.
[0037] Specifically, such as Figure 1-5 As shown, a discharge rack 31 is provided on one side of the screening screen 3, and the discharge rack 31 is provided with a discharge channel 311.
[0038] Specifically, such as Figure 1-2 As shown, the pushing component also includes a pushing motor 7, which is mounted on the inclined support plate 62, and the movable end of the pushing motor 7 is connected to the pushing plate 43.
[0039] In this embodiment, the material enters from the inclined inlet of the feeding rack 2, slides down the inclined surface 221 to the feeding outlet, and falls onto the conveyor belt 53. The drive motor 55 of the conveying device starts, driving the conveyor belt 53 to rotate and evenly conveying the material to the screen 3. The material falls freely from the end of the conveyor belt 53 onto the surface of the screen 3. Small particles fall through the screen holes into the separating channel 42, while larger particles remain on the screen. The push plate 43 of the push motor 7 reciprocates periodically, and the push teeth 431 are embedded in the separating channel 42 of the separating grid, pushing the screened material out of the separating channel 42 and collecting it. Unscreened material is manually sorted and discharged through the discharge channel 311 to avoid accumulation.
[0040] The tilting support plate 62 of the tilting component is adjustable in angle, and the material residence time can be controlled by changing the screen tilt angle to optimize screening efficiency.
[0041] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A falling-type screening device, characterized in that, include: Mounting bracket (1); An input rack (2) is installed on the mounting bracket (1). The input rack (2) is provided with an input inlet (21), an input outlet and an input channel (22). The input channel (22) is connected to the input inlet (21) and the input outlet respectively. Screening screen (3), the screening screen (3) is installed on the mounting bracket (1) and located below the input outlet; The push component includes a partition grid and a push plate (43). The partition grid includes a plurality of partition columns (41). A partition channel (42) is provided between two adjacent partition columns (41). The distance between two adjacent partition columns (41) is equal. The push plate (43) is provided with a plurality of push teeth (431) that are adapted to the separation channel (42), and the push plate (43) moves on the separation grid.
2. The falling-type screening device according to claim 1, characterized in that: The input channel (22) is provided with an inclined surface (221) that slopes toward the input outlet.
3. The falling-type screening device according to claim 1, characterized in that: It also includes a conveying device, which is disposed between the input outlet and the screen (3). The conveying device includes a first conveying roller (51), a second conveying roller (52) and a conveyor belt (53). The first conveying roller (51) and the second conveying roller (52) are rotatably mounted on the mounting bracket (1). The conveyor belt (53) is adapted to connect the first conveying roller (51) and the second conveying roller (52).
4. A falling-type screening device according to claim 3, characterized in that: The conveying device also includes a motor bracket (54) and a drive motor (55). The motor bracket (54) is mounted on the mounting bracket (1), and the drive motor (55) is mounted on the motor bracket (54). The movable end of the drive motor (55) is connected to the first conveying roller (51).
5. A falling-type screening device according to claim 1, characterized in that: It also includes a tilting assembly, which includes four fixed legs (61) and a tilting support plate (62). The four fixed legs (61) are mounted on the bottom of the mounting bracket (1), and the tilting support plate (62) is hinged to the mounting bracket (1) by four connecting seats (63). The tilting support plate (62) is rotatable to adjust the tilt angle.
6. A falling-type screening device according to claim 1, characterized in that: The material screening screen (3) is provided with a discharge rack (31) on one side, and the discharge rack (31) is provided with a discharge channel (311).
7. A falling-type screening device according to claim 5, characterized in that: The pushing component also includes a pushing motor (7), which is mounted on the inclined support plate (62), and the movable end of the pushing motor (7) is connected to the pushing plate (43).