A screening box for a sorter
By introducing two-dimensional composite motion and elastic impact mechanism into the screening box of the separator, the problems of low screening efficiency and filter clogging are solved, and a high-efficiency screening effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANNENG HEAVY IND EQUIPMENT (JIANGSU) CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-26
Smart Images

Figure CN224405713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sorting machine technology, and in particular to a screening box for a sorting machine. Background Technology
[0002] The screening box of a sorting machine is the core functional component for material screening and grading. It mainly uses mechanical motion to cause specific vibrations or displacements in the screen, thereby separating materials of different particle sizes, shapes, or densities. Its structure typically includes a screen, frame, drive unit, and support components. During operation, a power system (such as a motor or vibrator) drives the screen to move, causing the materials to move relative to each other on the screen surface, achieving the purpose of grading by particle size or removing impurities.
[0003] The screening boxes of existing sorting machines typically only screen in one direction during the screening process, resulting in low screening efficiency. Furthermore, raw materials tend to accumulate on the filter screen during the screening process, causing filter clogging.
[0004] Therefore, it is necessary to propose a screening box for a sorting machine to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a screening box for a sorting machine to solve the problems that when the filter screen is screened, it only screens in one direction, resulting in low screening efficiency and the easy accumulation of raw materials on the filter screen during the screening process, causing filter screen blockage.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a screening box for a sorting machine, including a base, a screening shell provided on the top surface of the base, a slot provided on one side of the screening shell, and a filter screen inserted into the slot;
[0007] The bottom surface of the screening shell is provided with two pairs of rollers, which are rotatably connected to the top surface of the base. The top surface of the base is fixedly connected with two protrusions, which are normally located on one side of a pair of rollers. Multiple cylindrical rods are fixedly connected inside the screening shell, and multiple elastic strips are fixedly connected to the outer periphery of the cylindrical rods. The ends of the elastic strips are fixedly connected with striking balls.
[0008] Preferably, the elastic strip and the striking ball are both elastic, and the cylindrical rod, the elastic strip and the striking ball are all located at the bottom of the filter screen.
[0009] Preferably, the top surface of the base is inclined.
[0010] Preferably, a motor is fixedly connected to one side of the top surface of the base, a turntable is fixedly connected to the motor shaft, a fixed frame is fixedly connected to one side of the screening shell, a connecting rod is rotatably connected between the fixed frames, and one end of the connecting rod is rotatably connected to the side wall of the turntable away from the center.
[0011] Preferably, a discharge hole is provided on one side of the screening shell, and a feeding plate is fixedly connected inside the discharge hole. Multiple threaded rods are provided on the top of the screening shell, and the threaded rods pass through the screening shell and are threadedly connected to the filter screen.
[0012] Preferably, a housing is fixedly installed on the top surface of the base, and limiting plates are fixedly connected to both sides of the inner wall of the housing. The limiting plates are located at the top of the screening shell, and a second opening is provided through the top of the housing. A first opening is provided through one side of the housing, and the feeding plate passes through the first opening.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. In this utility model, the filter screen, through the cooperation of its components, can cause the raw material to move horizontally and jump up and down during screening, forming a dual effect of two-dimensional compound motion, which can significantly improve screening performance and increase screening efficiency. In addition, during the screening process, the cooperation of the cylindrical rod, elastic strip and striking ball repeatedly and continuously strikes the bottom surface of the filter screen, avoiding the accumulation of raw material and ensuring that the mesh of the filter screen will not be blocked. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic cross-sectional view of the present invention.
[0017] Figure 3 This is a schematic diagram of the vertical cross-section of this utility model.
[0018] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0019] In the diagram: 1. Base; 11. Housing; 12. Protrusion; 13. First opening; 14. Second opening; 15. Limiting plate;
[0020] 2. Screening shell; 21. Roller; 22. Grooved section; 23. Filter screen; 24. Threaded rod; 25. Discharge hole; 26. Feed plate;
[0021] 3. Cylindrical rod; 31. Elastic strip; 32. Striking ball;
[0022] 4. Motor; 41. Turntable; 42. Connecting rod; 43. Fixing frame. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model, and should not be construed as limiting this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] This utility model provides, for example Figures 1-4 The screening box of a sorting machine shown includes a base (1). A screening shell 2 is provided on the top surface of the base 1. A slot 22 is provided on one side of the screening shell 2. A filter screen 23 is inserted into the slot 22. When screening is required, the raw material is placed on the filter screen 23. The screening shell 2 is moved, and the screening shell 2 drives the filter screen 23 to move, thereby completing the screening of the raw material. The filter screen 23 is easy to disassemble and replace. When disassembling, the filter screen 23 can be pulled out from the slot 22 for replacement.
[0025] Furthermore, the bottom surface of the screening shell 2 is provided with two pairs of rollers 21, which are rolledly connected to the top surface of the base 1. The top surface of the base 1 is fixedly connected with two protrusions 12, which are normally located on one side of a pair of rollers 21. Multiple cylindrical rods 3 are fixedly connected inside the screening shell 2, and multiple elastic strips 31 are fixedly connected to the outer periphery of the cylindrical rods 3. The ends of the elastic strips 31 are fixedly connected with striking balls 32. The rollers 21 provide assistance for the normal movement of the screening shell 2. Due to the setting of the protrusions 12, during the movement of the screening shell 2, the rollers 21 move and contact the protrusions 12, and the protrusions 12 cause the screening shell 2 to jump up and down, thereby superimposing micro-impacts on the filter screen 23 in the vertical direction, forming a two-dimensional composite motion, which facilitates better screening of raw materials.
[0026] When the screening shell 2 bounces up and down, the elastic strip 31 on it drives the striking ball 32 to strike the filter screen 23. The striking ball 32 can prevent the filter screen 23 from clogging.
[0027] It should be noted that both the elastic strip 31 and the striking ball 32 are elastic, and the cylindrical rod 3, the elastic strip 31 and the striking ball 32 are all located at the bottom of the filter screen 23; due to the elastic setting of the elastic strip 31 and the striking ball 32, the filter screen 23 can be prevented from being damaged when it is struck.
[0028] It should also be noted that the top surface of the base 1 is inclined; due to the inclined top surface of the base 1, the raw material moves to one side along the filter screen 23 during screening.
[0029] In this invention, the filter screen 23, through the cooperation of its components, can cause the raw material to move horizontally and jump up and down during screening, forming a dual effect of two-dimensional compound motion, which can significantly improve screening performance and increase screening efficiency. Furthermore, during the screening process, the cooperation of the cylindrical rod 3, the elastic strip 31, and the striking ball 32 continuously and repeatedly strikes the bottom surface of the filter screen 23, preventing the accumulation of raw material and ensuring that the mesh of the filter screen 23 will not be blocked.
[0030] In this utility model, a motor 4 is fixedly connected to one side of the top surface of the base 1, and a turntable 41 is fixedly connected to the rotating shaft of the motor 4. A fixed frame 43 is fixedly connected to one side of the screening shell 2. A connecting rod 42 is rotatably connected between the fixed frames 43. One end of the connecting rod 42 is rotatably connected to the side wall of the turntable 41 away from the center. When screening is required, the motor 4 is turned on, and the motor 4 drives the turntable 41 to rotate. The rotation of the turntable 41 drives the connecting rod 42 to move back and forth. The movement of the connecting rod 42 drives the fixed frame 43 to move back and forth. The movement of the fixed frame 43 drives the screening shell 2 to move back and forth.
[0031] In this utility model, a discharge hole 25 is provided on one side of the screening shell 2, and a feeding plate 26 is fixedly connected inside the discharge hole 25. Multiple threaded rods 24 are provided on the top of the screening shell 2. The threaded rods 24 pass through the screening shell 2 and are threadedly connected to the filter screen 23. When it is necessary to disassemble and replace the new filter screen 23, the threaded rods 24 are removed, and then the filter screen 23 can be removed from the slot 22. The screened material falls into the interior of the screening shell 2, moves along the bottom surface of the screening shell 2 to the discharge hole 25, and then is removed from the feeding plate 26.
[0032] It should be noted that a housing 11 is fixedly installed on the top surface of the base 1. Limiting plates 15 are fixedly connected to both sides of the inner wall of the housing 11. The limiting plates 15 are located at the top of the screening shell 2. A second opening 14 is provided through the top of the housing 11, and a first opening 13 is provided through one side of the housing 11. The feeding plate 26 passes through the first opening 13. The housing 11 protects the internal device from damage. The limiting plates 15 limit the screening shell 2. After the raw material is added through the second opening 14, it falls onto the screening shell 2. The screened raw material is discharged from the housing 11 through the first opening 13.
Claims
1. A screening box of a sorter comprising a base (1), characterized in that: The base (1) has a sieve shell (2) on its top surface. A slot (22) is provided on one side of the sieve shell (2). A filter screen (23) is inserted into the slot (22). The bottom surface of the screening shell (2) is provided with two pairs of rollers (21), which are rolledly connected to the top surface of the base (1). The top surface of the base (1) is fixedly connected with two protrusions (12), which are normally located on one side of a pair of rollers (21). The screening shell (2) is fixedly connected with multiple cylindrical rods (3), and multiple elastic strips (31) are fixedly connected to the outer periphery of the cylindrical rods (3). The ends of the elastic strips (31) are fixedly connected with striking balls (32).
2. A sifting box for a sorting machine according to claim 1, characterized in that: The elastic strip (31) and the striking ball (32) are both elastic, and the cylindrical rod (3), the elastic strip (31) and the striking ball (32) are all located at the bottom of the filter screen (23).
3. The screening box of a sorting machine according to claim 1, characterized in that: The top surface of the base (1) is inclined.
4. The screening box of a sorting machine according to claim 1, characterized in that: A motor (4) is fixedly connected to one side of the top surface of the base (1), and a turntable (41) is fixedly connected to the shaft of the motor (4). A fixed frame (43) is fixedly connected to one side of the screening shell (2), and a connecting rod (42) is rotatably connected between the fixed frames (43). One end of the connecting rod (42) is rotatably connected to the side wall of the turntable (41) away from the center.
5. The screening box of a sorting machine according to claim 1, characterized in that: The screening shell (2) has a discharge hole (25) on one side, and a feeding plate (26) is fixedly connected inside the discharge hole (25). The top of the screening shell (2) is provided with multiple threaded rods (24), which pass through the screening shell (2) and are threadedly connected to the filter screen (23).
6. The screening box of a sorting machine according to claim 5, characterized in that: The base (1) is fixedly mounted with a housing (11) on its top surface. Limiting plates (15) are fixedly connected to both sides of the inner wall of the housing (11). The limiting plates (15) are located at the top of the screening shell (2). A second opening (14) is provided through the top of the housing (11). A first opening (13) is provided through one side of the housing (11). The feeding plate (26) passes through the first opening (13).