Tobacco screening device

Abstract

The utility model discloses a tobacco screening device which comprises a screening box (1), a plurality of screening plates (3) are movably installed on the screening box (1), two brushes (4) are arranged above each screening plate (3) in the screening box (1), a screening plate angle adjusting assembly is arranged in one side wall of the screening box (1), and a screening plate angle adjusting assembly is arranged on the other side wall of the screening box (1). And a screening plate driving mechanism is arranged on the outer wall of the screening box (1), the screening plate driving mechanism is connected with all the screening plates (3), a feeding port (7) is formed in a top plate of the screening box (1), and a discharging port (8) is formed in the side wall of the screening box (1). The screening plate can be cleaned while being prevented from being blocked, the screening efficiency is improved, and discharging is convenient.

Description

Technical Field

[0001] The utility model relates to a screening device, in particular to a tobacco screening device. Background Art

[0002] Before tobacco is used, a series of processing operations are required. An important part of the tobacco processing procedure is to screen the tobacco. A screening device is needed during the screening process. The screening device is a device that can screen tobaccos of different sizes and separate tobaccos of different sizes and dust particles in the tobacco, so as to improve the utilization efficiency and purity.

[0003] When a common screening device is in use, although it can screen tobacco under the agitation of an agitation mechanism, and the dialing parts in the agitation mechanism assist the filtration of the screening plate. However, it does not have a screening plate cleaning structure. During the screening process, the mesh holes of the screening plate are often blocked, and there is a problem that the screening plate cannot be cleaned thoroughly during cleaning, and there is also a problem of difficult discharging. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tobacco screening device to solve the technical problems in the prior art. It can prevent the screening plate from being blocked while cleaning it, improve the screening efficiency, and is more convenient for discharging.

[0005] The utility model provides a tobacco screening device, which includes a screening box. A plurality of screening plates are movably installed on the screening box. Two brushes are arranged above each screening plate in the screening box. A screening plate angle adjustment component is arranged in one side wall of the screening box. A screening plate driving mechanism is arranged on the outer wall of the screening box. The screening plate driving mechanism is connected to all the screening plates. A feed inlet is opened on the top plate of the screening box, and a discharge outlet is arranged on the side wall of the screening box.

[0006] Preferably, all the screening plates are horizontally arranged. The side wall of the screening box has sliding holes for installing the screening plates. Both ends of the screening plate are located outside the screening box.

[0007] Preferably, the height of the sliding hole on one side wall of the screening box is equal to the thickness of the screening plate; the height of the sliding hole on the other side wall of the screening box is greater than the thickness of the screening plate, and the screening plate driving mechanism is arranged in this side wall.

[0008] Preferably, the sieve plate angle adjustment assembly includes a lifting plate, a lifting frame, and a lead screw. A cavity is formed in the side wall of the screening box. The upper end of the cavity communicates with the bottom of the sliding hole. The lifting plate, the lifting frame, and the lead screw are all installed in the cavity. The top of the lifting plate abuts against the bottom surface of the sieve plate. The bottom of the lifting plate is fixedly connected to the top of the lifting frame. The lead screw is threadedly connected to the lifting frame.

[0009] Preferably, a square groove is formed in the side wall of the screening box. The lower end of the lead screw is rotatably connected to the bottom of the square groove through a bearing.

[0010] Preferably, a funnel is fixedly provided at the top of the screening box. The lower end of the funnel communicates with the feed port. The top end of the funnel is inserted with a funnel cover, and a hole plug is inserted into the discharge port.

[0011] Preferably, threaded rods are installed on both side walls of the screening box. One end of each threaded rod extends into the screening box and is rotatably connected to the brush.

[0012] Preferably, limiting grooves are formed on both inner side walls of the screening box. Limiting blocks are fixedly installed at both ends of the brush. The limiting blocks are clamped and slidably connected to the limiting grooves.

[0013] Preferably, the sieve plate driving mechanism includes a motor, a moving frame, and a connecting plate. A support plate is fixedly installed on an outer wall of one side of the screening box. The motor is fixedly provided on the top surface of the support plate. An output end of the motor is fixedly installed with a Z-shaped rod. One end of the Z-shaped rod is sleeved in the moving frame. The moving frame is fixedly connected to the middle of the connecting plate. The connecting plate is connected to all the sieve plates through rotating shafts.

[0014] Preferably, a guiding plate is fixedly provided on the top surface of the support plate. A through hole is formed in the guiding plate. One end of the moving frame is inserted and slidably connected to the through hole on the guiding plate.

[0015] Compared with the prior art, the utility model includes a screening box, on which a plurality of sieve plates are movably installed. Two brushes are arranged above each sieve plate in the screening box. A sieve plate angle adjustment assembly is arranged in one side wall of the screening box, and a sieve plate driving mechanism is arranged on the outer wall of the screening box. The sieve plate driving mechanism is connected to all the sieve plates. The sieve plates of the utility model make horizontal reciprocating motions under the drive of the sieve plate driving mechanism, so as to realize the screening of tobacco. While screening the tobacco, the sieve plates are cleaned by the brushes to ensure the screening efficiency. The positions of the brushes can also be adjusted. Moreover, the height of one end of the sieve plate can be adjusted through the sieve plate angle adjustment assembly to realize rapid discharging, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an isometric view of the present utility model;

[0017] Figure 2 is an isometric view of another angle of the present utility model;

[0018] Figure 3 is a schematic structural view of the screening box of the present utility model;

[0019] Figure 4 is a cross-sectional view of the present utility model;

[0020] Figure 5 is a schematic view of the internal connection structure of the present utility model.

[0021] Explanation of reference numerals in the drawings: 1, screening box; 2, sliding hole; 3, screening plate; 4, brush; 6, lifting plate; 7, feed inlet; 8, discharge outlet; 9, funnel; 10, funnel cover; 11, hole plug; 12, threaded rod; 13, limiting groove; 14, limiting block; 15, support plate; 16, motor; 17, Z-shaped rod; 18, moving frame; 19, connecting plate; 20, guiding plate; 21, cavity; 22, lifting frame; 23, square groove; 24, lead screw. Detailed description of the specific implementation

[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0023] Embodiments of the present utility model: As Figures 1-5 shown, a tobacco screening device includes a screening box 1, on which a plurality of screening plates 3 are movably installed. Above each screening plate 3 in the screening box 1, two brushes 4 are provided. One of the side walls of the screening box 1 is provided with a screening plate angle adjustment assembly, and a screening plate driving mechanism is provided on the outer wall of the screening box 1. The screening plate driving mechanism is connected to all the screening plates 3. A feed inlet 7 is opened on the top plate of the screening box 1, and a discharge outlet 8 is provided on the side wall of the screening box 1.

[0024] Tobacco can be put into the screening box 1 through the feed inlet 7. The number of screening plates 3 can be set according to requirements, such as setting two, three, four or more. In this embodiment, two screening plates 3 are provided, and the diameters of the mesh holes on the screening plates 3 gradually decrease from top to bottom.

[0025] The brush 4 can play a role in cleaning the screening plate 3, preventing the mesh holes of the screening plate 3 from being blocked, and ensuring the screening efficiency; the screening plate angle adjustment component can adjust the height of one end of the screening plate 3, thereby facilitating rapid discharging; and the screening plate driving mechanism is used to drive the screening plate 3 to perform horizontal reciprocating motion.

[0026] In a specific embodiment, all the screening plates 3 are horizontally arranged. The side wall of the screening box 1 is provided with sliding holes 2 for installing the screening plates 3, and both ends of the screening plate 3 are located outside the screening box 1.

[0027] As shown in the figure, sliding holes 2 are provided on a group of opposite side walls of the screening box 1. Every two sliding holes 2 form a group, and the sliding holes 2 in the same group are at the same height. The height of the sliding holes 2 on one side wall of the screening box 1 is equal to the thickness of the screening plate 3; the height of the sliding holes 2 on the other side wall of the screening box 1 is greater than the thickness of the screening plate 3, and the screening plate driving mechanism is arranged inside this side wall.

[0028] The purpose of such a design is that under the action of the screening plate driving mechanism, one end of the screening plate 3 can be lowered while the other end remains at a certain height, so as to make the screening plate 3 in an inclined state, enabling the tobacco to slide out of the screening box 1 from the sliding holes 2 with a greater height.

[0029] Specifically, the screening plate angle adjustment component includes a lifting plate 6, a lifting frame 22 and a lead screw 24. A cavity 21 is provided inside the side wall of the screening box 1. The upper end of the cavity 21 is communicated with the bottom of the sliding hole 2. The lifting plate 6, the lifting frame 22 and the lead screw 24 are all installed in the cavity 21. The top of the lifting plate 6 abuts against the bottom surface of the screening plate 3. The bottom of the lifting plate 6 is fixedly connected to the top of the lifting frame 22, and the lead screw 24 is threadedly connected to the lifting frame 22.

[0030] It should be noted that the number of the screening plate angle adjustment components is equal to the number of the screening plates 3. In this embodiment, two screening plates 3 are provided, so the number of the screening plate angle adjustment components is also two.

[0031] When the lead screw 24 is rotated, the lifting frame 22 is in threaded cooperation with the lead screw 24. Since the height of the lead screw 24 does not change, the lifting frame 22 will generate a displacement in the vertical direction. When the lifting frame 22 rises or falls, it will drive the lifting plate 6 to rise or fall, thereby changing the height of one end of the screening plate 3.

[0032] A square groove 23 is provided on the side wall of the screening box 1. The lower end of the lead screw 24 is rotatably connected to the bottom of the square groove 23 through a bearing.

[0033] The opening of the square groove 23 is located on the outer wall of the screening box 1. The staff can insert their fingers into the square groove 23 to rotate the lead screw 24. The lower end of the lead screw 24 is rotationally connected to the bottom of the square groove 23 through a bearing, which can ensure the smooth rotation of the lead screw 24 and also prevent the lead screw 24 from generating axial displacement.

[0034] Furthermore, a funnel 9 is fixedly installed at the top of the screening box 1. The lower end of the funnel 9 is communicated with the feed port 7. A funnel cover 10 is inserted into the top end of the funnel 9, and a hole plug 11 is inserted into the discharge port 8.

[0035] The discharge port 8 is used to discharge debris, dust, fine impurities, etc. that fall from the two screening plates 3.

[0036] Furthermore, threaded rods 12 are installed on the two side walls of the screening box 1. One end of each threaded rod 12 extends into the screening box 1 and is rotationally connected to a brush 4.

[0037] By rotating the threaded rod 12, since the threaded rod 12 is threadedly connected to the side wall of the screening box 1, when the threaded rod 12 is rotated, the threaded rod 12 will generate an axial displacement relative to the side wall of the screening box 1, thereby changing the position of the brush 4 so that the brush 4 can clean different positions of the screening plate 3.

[0038] Preferably, limiting grooves 13 are formed on the two inner side walls of the screening box 1. Limiting blocks 14 are fixedly installed at both ends of the brush 4, and the limiting blocks 14 are clamped and slidably connected to the limiting grooves 13.

[0039] Through this structural design, the brush 4 is always kept in a horizontal state, and it can ensure that the bristles on the brush 4 have a certain pressure on the screening plate 3, ensuring the cleaning effect of the brush 4.

[0040] Furthermore, the screening plate driving mechanism includes a motor 16, a moving frame 18 and a connecting plate 19. A support plate 15 is fixedly installed on one outer wall of the screening box 1. The motor 16 is fixedly arranged on the top surface of the support plate 15. The output end of the motor 16 is fixedly installed with a Z-shaped rod 17. One end of the Z-shaped rod 17 is sleeved in the moving frame 18. The moving frame 18 is fixedly connected to the middle of the connecting plate 19, and the connecting plate 19 is connected to all the screening plates 3 through rotating shafts.

[0041] The moving frame 18 is composed of a moving frame and a moving rod. One end of the Z-shaped rod 17 is inserted and connected to the moving frame. The width of the long hole in the moving frame is equal to the diameter of the Z-shaped rod 17, and the length direction of the long hole is the vertical direction. The moving rod is horizontally arranged. One end of the moving rod is fixedly connected to the middle of one side of the moving frame, and the other end of the moving rod is fixedly connected to the middle of the connecting plate 19. The connecting plate 19 is vertically arranged.

[0042] A guide plate 20 is fixedly provided on the top surface of the support plate 15. A through hole is formed in the guide plate 20. The moving rod is inserted into and slidably connected to the through hole in the guide plate 20. The function of the guide plate 20 is to keep the moving rod moving horizontally all the time, so as to ensure that the connecting plate 19 can make a horizontal reciprocating motion.

[0043] The working principle of the present utility model: First, pour the tobacco to be screened into the screening box 1 through the funnel 9, cover the funnel cover 10, and then turn on the motor 16. The motor 16 drives the Z-shaped rod 17 to rotate, so that the moving frame 18 makes a horizontal reciprocating motion. Then, through the connecting plate 19, the screening plate 3 makes a horizontal reciprocating motion in the sliding hole 2. When the screening plate 3 makes a horizontal reciprocating motion, the brush 4 cleans different positions of the screening plate 3, so as to screen the tobacco and prevent the tobacco from blocking the screening plate 3 at the same time. The threaded rod 12 can also be rotated to adjust the brush 4 to a suitable position to clean different areas of the screening plate 3 and improve the screening efficiency; after screening, turn off the motor 16, rotate the lead screw 24 in the square groove 23 to drive the lifting frame 22 to move downward in the cavity 21, so that the lifting plate 6 slides downward, lowering one side of the screening plate 3 to form a height difference, so as to facilitate discharging. Finally, the debris, dust, impurities, etc. are taken out from the discharge port 8.

[0044] The structure, features and function effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present utility model, but the present utility model is not limited to the implementation scope shown in the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, still within the spirit covered by the specification and the drawings, shall be within the protection scope of the present utility model.

Claims

1. A tobacco screening device, comprising a screening box (1), characterized in that: A plurality of screening plates (3) are movably mounted on the screening box (1). Above each of the screening plates (3) in the screening box (1), two brushes (4) are provided. A screening plate angle adjustment assembly is provided in one side wall of the screening box (1), and a screening plate driving mechanism is provided on the outer wall of the screening box (1). The screening plate driving mechanism is connected to all the screening plates (3). A feed inlet (7) is formed in the top plate of the screening box (1), and a discharge outlet (8) is provided on the side wall of the screening box (1).

2. The tobacco screening device according to claim 1, wherein: All the screening plates (3) are horizontally arranged. The side wall of the screening box (1) has sliding holes (2) for mounting the screening plates (3). Both ends of the screening plate (3) are located outside the screening box (1).

3. The tobacco screening device according to claim 2, wherein: The height of the sliding hole (2) on one side wall of the screening box (1) is equal to the thickness of the screening plate (3); the height of the sliding hole (2) on the other side wall of the screening box (1) is greater than the thickness of the screening plate (3), and the screening plate driving mechanism is arranged in this side wall.

4. The tobacco screening device according to claim 3, wherein: The screening plate angle adjustment assembly includes a lifting plate (6), a lifting frame (22) and a lead screw (24). A cavity (21) is formed in the side wall of the screening box (1). The upper end of the cavity (21) communicates with the bottom of the sliding hole (2). The lifting plate (6), the lifting frame (22) and the lead screw (24) are all installed in the cavity (21). The top of the lifting plate (6) abuts against the bottom surface of the screening plate (3). The bottom of the lifting plate (6) is fixedly connected to the top of the lifting frame (22). The lead screw (24) is threadedly connected to the lifting frame (22).

5. The tobacco screening device according to claim 4, characterized in that: A square groove (23) is formed in the side wall of the screening box (1). The lower end of the lead screw (24) is rotatably connected to the bottom of the square groove (23) through a bearing.

6. The tobacco screening device according to claim 1, wherein: A funnel (9) is fixedly provided on the top of the screening box (1). The lower end of the funnel (9) communicates with the feed inlet (7). The top end of the funnel (9) is inserted with a funnel cover (10). A hole plug (11) is inserted into the discharge outlet (8).

7. The tobacco screening device according to claim 1, characterized in that: Threaded rods (12) are installed on both side walls of the screening box (1). One end of each threaded rod (12) extends into the screening box (1) and is rotatably connected to the brush (4).

8. The tobacco screening device according to claim 7, characterized in that: Limiting grooves (13) are formed on both inner side walls of the screening box (1). Limiting blocks (14) are fixedly installed at both ends of the brush (4). The limiting blocks (14) are clamped and slidably connected to the limiting grooves (13).

9. The tobacco screening device according to claim 1, characterized in that: The screening plate driving mechanism includes a motor (16), a moving frame (18) and a connecting plate (19). A support plate (15) is fixedly installed on an outer wall of one side of the screening box (1). The motor (16) is fixedly arranged on the top surface of the support plate (15). An output end of the motor (16) is fixedly installed with a Z-shaped rod (17). One end of the Z-shaped rod (17) is sleeved in the moving frame (18). The moving frame (18) is fixedly connected to the middle of the connecting plate (19). The connecting plate (19) is connected to all the screening plates (3) through a rotating shaft.

10. The tobacco screening device according to claim 9, characterized in that: A guide plate (20) is fixedly arranged on the top surface of the support plate (15). A through hole is formed in the guide plate (20). One end of the moving frame (18) is inserted and slidably connected to the through hole in the guide plate (20).

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