Fine vibrating screen

Abstract

The utility model discloses a fine vibrating screen, which relates to the technical field of vibrating screens, and comprises a screening box, a first plate body and a second plate body are hinged in the screening box, a first screening net is embedded on the first plate body, a second screening net is embedded on the second plate body, and two adjusting components are arranged on the screening box. The screening device is reasonable in design structure, the angles of the first plate body and the second plate body in the screening box are independently adjusted through the two adjusting assemblies, the supporting angles of the first plate body and the second plate body can be changed through the hinge block and the rotating block by means of the length change generated by stretching and retracting of the electric push rod, and the screening effect is improved. An operator is allowed to adjust the residence time of materials on the screen according to actual requirements, so that the screening time and efficiency are optimized, the screening requirements of different particle sizes are met, the problem that the residence time of the materials is fixed in the prior art is solved, and the screening flexibility is improved.

Description

A fine vibrating screen Technical Field

[0001] This utility model relates to the field of vibrating screen technology, specifically a fine vibrating screen. Background Technology

[0002] A vibrating screen works by using the reciprocating rotary vibration generated by the vibrator. The upper rotating weight of the vibrator causes the screen surface to produce planar rotary vibration, while the lower rotating weight causes the screen surface to produce conical rotary vibration. The combined effect of these two factors causes the screen surface to produce compound rotary vibration. The granules produced by the granulator need to be screened by a vibrating screen to remove unqualified granules and excess powder.

[0003] Among them, Chinese patent CN219540954U discloses a vibrating screen for fine screening of raw materials. It uses a primary screening screen, a secondary screening screen, a tertiary screening screen, and a drive shaft and cam installed on one side of the lower end of the secondary and tertiary screening screens. As the screen holes of the primary, secondary, and tertiary screening screens gradually increase, a multi-stage vibration screening effect is achieved, which further maintains the fine screening effect of the raw materials. Through the drive shaft and drive gear, after the power motor is started, the two drive shafts can be rotated synchronously, reducing power costs.

[0004] While the above-mentioned solutions employ multi-stage screening to achieve fine screening, the uniform screen angle results in a fixed residence time for the material on the screen surface. This makes it difficult to adjust the residence time according to actual needs, thus failing to achieve optimal screening time and efficiency. Therefore, we provide a fine vibrating screen to solve these problems. Summary of the Invention

[0005] 1) Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fine vibrating screen.

[0007] (ii) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fine vibrating screen, comprising:

[0009] A screening box, wherein a first plate and a second plate are hinged together, a first screening screen is embedded on the first plate, and a second screening screen is embedded on the second plate.

[0010] Both adjustment components are located on the screening box and are used to adjust the angles of the first plate and the second plate inside the screening box, respectively.

[0011] An inclined block is installed on the bottom surface of the screening box, and a vibration motor is installed on one side of the inclined block.

[0012] The support assembly, located below the screening box, is used to provide elastic support for the screening box under vibration.

[0013] Furthermore, the first plate is provided with a first arc-shaped end, and the first arc-shaped end is fixedly connected to a first feeding pipe, which is located outside the screening box.

[0014] Furthermore, the second plate is provided with a second arc-shaped end, and the second arc-shaped end is fixedly connected to a second feed pipe, which is located outside the screening box.

[0015] Furthermore, a first baffle is fixedly connected to the first plate, and a first screening space is formed on the upper surface of the first plate through the first baffle. A second baffle is fixedly connected to the second plate, and a second screening space is formed on the upper surface of the second plate through the second baffle.

[0016] Furthermore, a third plate is fixedly connected to the screening box, a third baffle is fixedly connected to the third plate, and a third feed pipe is also fixedly connected to the third plate, with the third feed pipe located outside the screening box.

[0017] Furthermore, both of the adjustment components include a support shaft, and both ends of the two support shafts are fixedly connected to a mounting base, which is fixedly connected to the screening box. A rotating block is rotatably connected to each of the two support shafts, and an electric push rod is mounted on each of the two rotating blocks. A hinge block is hinged to the telescopic end of each of the two electric push rods, and the two hinge blocks are respectively fixedly connected to the first plate and the second plate.

[0018] Furthermore, the support assembly includes a support frame, and two fixing plates are fixedly connected to both sides of the screening box. High-pressure springs are fixedly connected to both fixing plates, and the bottom ends of the high-pressure springs are fixedly connected to the support frame.

[0019] Furthermore, a feed box is fixedly connected to the screening box, and a feed trough is provided on the feed box.

[0020] (iii) Beneficial effects:

[0021] Compared with existing technologies, this fine vibrating screen has the following advantages:

[0022] This invention features two adjustment components that allow independent adjustment of the angles of the first and second plates within the screening box. The length changes generated by the extension and retraction of the electric push rod, along with the hinge and rotating blocks, alter the support angles of the first and second plates. This allows the operator to adjust the material's residence time on the screen according to actual needs, thereby optimizing screening time and efficiency, meeting the screening requirements of different particle sizes, solving the problem of fixed material residence time in existing technologies, and improving screening flexibility. Attached Figure Description

[0023] Figure 1 is a perspective view of this utility model;

[0024] Figure 2 is a perspective view of this utility model;

[0025] Figure 3 is a cross-sectional view of this utility model;

[0026] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 3 of this utility model.

[0027] In the diagram: 1. Screening box; 2. Feeding box; 3. Feeding chute; 4. First plate; 5. First screening screen; 6. First discharge pipe; 7. First baffle; 8. Second plate; 9. Second discharge pipe; 10. Second baffle; 11. Second screening screen; 12. Third plate; 13. Third discharge pipe; 14. Third baffle; 15. Mounting base; 16. Support shaft; 17. Rotating block; 18. Electric push rod; 19. Hinge block; 20. Inclined block; 21. Vibration motor; 22. Support frame; 23. High-pressure spring; 24. Fixing plate. Detailed Implementation

[0028] 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.

[0029] As shown in Figures 1-4, this utility model provides a technical solution: a fine vibrating screen, including a screening box 1, an inclined block 20, a support assembly, and two adjustment assemblies.

[0030] The screening box 1 is hinged with a first plate 4 and a second plate 8. A first screening screen 5 is inlaid on the first plate 4, and a second screening screen 11 is inlaid on the second plate 8. The first plate 4 is located above the second plate 8. The material entering the screening box 1 is first screened by the first screening screen 5, and then screened again by the second screening screen 11.

[0031] The first plate 4 is provided with a first arc-shaped end, and the first arc-shaped end is fixedly connected to the first discharge pipe 6. The first discharge pipe 6 is located outside the screening box 1. The material after being screened by the first screening screen 5 will gradually move to the first arc-shaped end and be discharged through the first discharge pipe 6.

[0032] The second plate 8 is provided with a second arc-shaped end, and the second arc-shaped end is fixedly connected to the second discharge pipe 9. The second discharge pipe 9 is located outside the screening box 1. The material screened on the second screening screen 11 will gradually move to the second arc-shaped end and be discharged through the second discharge pipe 9.

[0033] A first baffle 7 is fixedly connected to the first plate 4. The upper surface of the first plate 4 forms a first screening space through the first baffle 7. The first baffle 7 is used to prevent materials from entering the angle between the screening box 1 and the first plate 4. A second baffle 10 is fixedly connected to the second plate 8. The upper surface of the second plate 8 forms a second screening space through the second baffle 10. The second baffle 10 is used to prevent materials from entering the angle between the second plate 8 and the second baffle 10.

[0034] A third plate 12 is fixedly connected to the screening box 1, a third baffle 14 is fixedly connected to the third plate 12, and a third discharge pipe 13 is also fixedly connected to the third plate 12. The third discharge pipe 13 is located outside the screening box 1. The material accumulated at the bottom of the screening box 1 is collected through the material collection space formed by the third plate 12 and the third baffle 14, and the material in the material collection space is discharged through the third discharge pipe 13.

[0035] A feed box 2 is fixedly connected to the screening box 1. The feed box 2 is provided with a feed trough 3. The feed box 2 and the feed trough 3 are used to guide the material and can directly pour the material onto the first plate 4.

[0036] Both adjustment components are mounted on the screening box 1 and are used to adjust the angle of the first plate 4 and the second plate 8 in the screening box 1, respectively. Both adjustment components include a support shaft 16, and both ends of the two support shafts 16 are fixedly connected to the mounting base 15, which is fixedly connected to the screening box 1. Rotating blocks 17 are rotatably connected to the two support shafts 16, and electric push rods 18 are mounted on the two rotating blocks 17. The telescopic ends of the two electric push rods 18 are hinged to hinge blocks 19, and the two hinge blocks 19 are fixedly connected to the first plate 4 and the second plate 8, respectively.

[0037] By utilizing the length change generated by the extension and retraction of the electric push rod 18, the support angle of the first plate 4 and the second plate 8 can be adjusted through the hinge block 19 and the rotating block 17, thereby adjusting the residence time of the material on the first plate 4 and the second plate 8, and thus controlling the screening time and screening efficiency of the material.

[0038] Inclined block 20 is installed on the bottom surface of screening box 1. A vibration motor 21 is installed on one side of inclined block 20. The vibration force generated by the vibration motor 21 causes the material to move linearly on the first plate 4 and the second plate 8, and is screened during the movement.

[0039] The support assembly is located below the screening box 1 and is used to provide elastic support for the screening box 1 under vibration. The support assembly includes a support frame 22. Two fixed plates 24 are fixedly connected to both sides of the screening box 1. High-pressure springs 23 are fixedly connected to both fixed plates 24, and the bottom end of the high-pressure springs 23 is fixedly connected to the support frame 22. The high-pressure springs 23 are used to buffer the impact force generated when the screening box 1 vibrates.

[0040] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fine vibrating screen, characterized in that, include: Screening box (1), in which a first plate (4) and a second plate (8) are hinged, a first screening mesh (5) is inlaid on the first plate (4), and a second screening mesh (11) is inlaid on the second plate (8); two adjustment components are both set on the screening box (1) for adjusting the angle of the first plate (4) and the angle of the second plate (8) in the screening box (1) respectively; inclined block (20) is installed on the bottom surface of the screening box (1), and a vibration motor (21) is installed on one side of the inclined block (20); support component is set below the screening box (1) for elastic support of the screening box (1) in the vibration state.

2. The fine vibrating screen according to claim 1, characterized in that: The first plate (4) is provided with a first arc-shaped end, and the first arc-shaped end is fixedly connected to a first feed pipe (6), which is located outside the screening box (1).

3. A fine vibrating screen according to claim 1, characterized in that: The second plate (8) is provided with a second arc-shaped end, and the second arc-shaped end is fixedly connected to a second feed pipe (9), which is located outside the screening box (1).

4. A fine vibrating screen according to claim 1, characterized in that: A first baffle (7) is fixedly connected to the first plate (4), and the upper surface of the first plate (4) forms a first screening space through the first baffle (7). A second baffle (10) is fixedly connected to the second plate (8), and the upper surface of the second plate (8) forms a second screening space through the second baffle (10).

5. A fine vibrating screen according to claim 1, characterized in that: A third plate (12) is fixedly connected to the screening box (1), a third baffle (14) is fixedly connected to the third plate (12), and a third feed pipe (13) is also fixedly connected to the third plate (12), and the third feed pipe (13) is located outside the screening box (1).

6. A fine vibrating screen according to claim 1, characterized in that: Both of the adjustment components include a support shaft (16), and both ends of the two support shafts (16) are fixedly connected to a mounting base (15), and the mounting base (15) is fixedly connected to the screening box (1). Both support shafts (16) are rotatably connected to a rotating block (17), and both rotating blocks (17) are equipped with an electric push rod (18). The telescopic ends of both electric push rods (18) are hinged to a hinge block (19), and the two hinge blocks (19) are respectively fixedly connected to the first plate (4) and the second plate (8).

7. A fine vibrating screen according to claim 1, characterized in that: The support assembly includes a support frame (22), and two fixing plates (24) are fixedly connected to both sides of the screening box (1). High pressure springs (23) are fixedly connected to both fixing plates (24), and the bottom end of the high pressure springs (23) is fixedly connected to the support frame (22).

8. A fine vibrating screen according to claim 1, characterized in that: A feed box (2) is fixedly connected to the screening box (1), and a feed trough (3) is provided on the feed box (2).

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