Screening device before sowing

Abstract

The utility model provides a screening device before sowing, which comprises a screening device body, and is characterized in that the screening device body comprises a screening box, a fixed box is fixed on the side of the screening box, a transmission assembly is movably arranged in the fixed box, a motor box is fixed on the top of the fixed box, and the motor box is fixed on the bottom of the fixed box. And a power mechanism is fixedly mounted on the side of the fixed box. According to the pre-sowing screening device, during use, screened seeds enter a conveying belt under pushing of a stirring rod to be discharged outwards, during discharging, an exhaust fan exhausts air upwards, air flow moves from bottom to top, moisture of the seeds on the conveying belt is removed, a heating mechanism in a collecting box can heat air, and the seeds on the conveying belt are separated from the air; therefore, the water can be conveniently and quickly removed.

Description

Technical Field

[0001] The utility model relates to the field of screening equipment, in particular to a screening device before sowing. Background Art

[0002] Before planting rapeseed seeds, impurities and unhealthy seeds inside the seeds need to be removed. Existing equipment removes shriveled seeds and dust through water flotation to obtain the final rapeseed seeds for planting. Although this method can play a screening role, it is impossible to completely dry the seeds after screening.

[0003] According to a black rice planting seed screening device disclosed in the patent document with the existing publication number CN112718443A, the device comprises a barrel body, a rotating shaft is movably installed in the middle of the inner circle of the barrel body, a sieve disc is fixedly installed on the top of the rotating shaft, a sieve plate is fixedly installed on the bottom of the inner side of the sieve disc, a base is fixedly installed on the bottom surface of the barrel body, a discharging port is provided at the bottom of the base, and a defective product outlet is provided at the gap between the barrel body and the base. When the technical scheme is used, the device moves under the simultaneous action of centrifugal force and friction force, and the full seeds with large mass will be screened out at the outer part of the sieve disc, and the unfull black rice seeds with small mass will be close to the center of the sieve disc, and the partially severely incomplete seeds will be subjected to greater friction force due to the destruction of their own elliptical shape, and will also be accumulated near the center of the sieve disc, thereby performing preliminary screening. With respect to the above technical scheme, although the scheme realizes screening, it is unable to complete preliminary drying of the seeds at the same time of screening, which is inconvenient when used. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pre-sowing screening device to solve the problems raised in the above-mentioned background technology. The utility model has a novel structure. When in use, the seeds after screening are pushed by the stirring rod to enter the conveyor belt and are discharged outward. When discharged, the exhaust fan draws air upward, and the wind moves from small to upward, thereby removing moisture from the seeds on the conveyor belt. The heating mechanism inside the collection box can heat the air, thereby facilitating the rapid removal of moisture.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a pre-sowing screening device, including a screening device body, the screening device body including a screening box, a fixed box is fixed on the side of the screening box, a transmission component is movably installed inside the fixed box, a motor box is fixed on the top of the fixed box, a power mechanism is fixed on the side of the fixed box, a feed hopper is fixed on the top of the screening box, a lifting mechanism is fixed on the side of the feed hopper, a water inlet pipe is installed on the side of the lifting mechanism, a drain pipe is fixed on the side of the screening box, and support rods are fixed on the bottom of the screening box and the fixed box.

[0006] Furthermore, a collecting box is fixed at the bottom of the fixed box, an air inlet is opened on the side of the collecting box, a heating mechanism is fixed on the inner walls at both ends of the collecting box, and an exhaust fan is fixedly installed inside the motor box.

[0007] Furthermore, a movable column is installed on the lifting mechanism, a movable plate is fixed to one end of the movable column, a movable barrel is movably installed inside the screening box, and the movable plate is movably installed inside the movable barrel.

[0008] Furthermore, a fixing block is welded on the inner wall of the movable barrel, a mounting hole is opened inside the fixing block, a connecting rod is movably installed inside the mounting hole, a ring seat is fixed at one end of the connecting rod, and the ring seat cooperates with the movable disk.

[0009] Furthermore, a partition plate is welded on the inner wall of the screening box, a hole is opened on the partition plate, the movable barrel is movably installed inside the opening, a sealing ring is fixed on the inner wall of the opening, the sealing ring is in contact with the outer wall of the movable barrel, an opening is opened on the side of the movable barrel, and a filter is fixed on the inner wall of the opening.

[0010] Furthermore, a reduction motor is fixedly installed at the bottom of the screening box, a fixing seat is installed on the reduction motor, the fixing seat is fixed to the bottom of the screening box, an arc cover is fixed on the side of the fixing seat, and a stirring rod is installed on the reduction motor.

[0011] Furthermore, a sealing ring seat is fixed at the bottom of the screening box, a baffle is fixed on the side of the fixed seat, the baffle is in contact with the bottom of the movable barrel, and a driven roller is rotatably installed inside the screening box.

[0012] Furthermore, the transmission component includes a driving roller and a transmission belt, the driving roller is installed on the power mechanism, the transmission belt is movably installed on the driving roller and the driven roller, and a limiting filter plate is fixed on the top of the fixed box.

[0013] The beneficial effects of the utility model are as follows: the utility model is a pre-sowing screening device, comprising a screening box; a fixing box; a motor box; a transmission assembly; a power mechanism; a collecting box; an air inlet; a drain pipe; a support rod; a feed hopper; a lifting mechanism; a water inlet pipe; a movable column; a movable barrel; a partition plate; an opening; a sealing ring seat; a fixing seat; a reduction motor; a stirring rod; a baffle; a driven roller; a transmission belt; an opening; a fixing block; a mounting hole; a connecting rod; a ring seat; a movable disk; an exhaust fan; a limit filter plate; a heating mechanism; and an arc cover.

[0014] 1. This pre-sowing screening device, when in use, the seeds after screening are pushed by the stirring rod to enter the conveyor belt and are discharged outward. During discharge, the exhaust fan draws air upward, and the air flow moves from bottom to top to remove moisture from the seeds on the conveyor belt. The heating mechanism inside the collection box can heat the air, thereby facilitating the rapid removal of moisture.

[0015] 2. A pre-sowing screening device, after water is filled into the movable barrel, the stirring rod rotates to rotate the seeds, and the impurities inside are floated upward under the tumbling. When the impurities are cleaned later, the movable disk moves upward and contacts the ring seat. The ring seat and the movable disk push the water upward, and the height of the water surface increases, so that the floating objects on the water surface are discharged from the top of the movable barrel, discharged onto the partition plate, and finally discharged through the drain pipe.

[0016] 3. In the pre-sowing screening device, the limit filter plate controls the thickness of the rapeseed on the conveyor belt, and at the same time, the limit filter plate filters the rapeseed when the air is drawn upward to prevent the rapeseed from being discharged upward with the wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a pre-sowing screening device of the utility model;

[0018] Figure 2 This is a schematic structural diagram of a cross-section of a screening box of a pre-sowing screening device of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a partition plate of a pre-sowing screening device of the utility model;

[0020] Figure 4 This is a structural schematic diagram of an enlarged point A of a pre-sowing screening device of the utility model;

[0021] Figure 5 This is a side view of the structure of a fixed box of a pre-sowing screening device of the utility model;

[0022] In the figure: 1. screening box; 2. fixing box; 3. motor box; 4. transmission component; 5. power mechanism; 6. collecting box; 7. air inlet; 8. drain pipe; 9. support rod; 10. feed hopper; 11. lifting mechanism; 12. water inlet pipe; 13. movable column; 14. movable barrel; 15. partition plate; 16. opening; 17. sealing ring seat; 18. fixing seat; 19. reduction motor; 20. stirring rod; 21. baffle; 22. driven roller; 23. transmission belt; 24. opening; 25. fixing block; 26. mounting hole; 27. connecting rod; 28. ring seat; 29. ​​movable disk; 30. exhaust fan; 31. limit filter plate; 32. heating mechanism; 33. arc cover. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a pre-sowing screening device, including a screening device body, the screening device body including a screening box 1, a fixed box 2 is fixed on the side of the screening box 1, a transmission component 4 is movably installed inside the fixed box 2, a motor box 3 is fixed on the top of the fixed box 2, a power mechanism 5 is fixedly installed on the side of the fixed box 2, the power mechanism 5 is a DC motor, the DC motor provides rotational power for the active roller, so that the active roller drives the transmission belt 23 to rotate, a feed hopper 10 is fixed on the top of the screening box 1, and a transmission component 4 is fixedly installed on the side of the feed hopper 10 A lifting mechanism 11 is an electric push rod, which realizes the up and down movement of the movable column 13. A water inlet pipe 12 is installed on the side of the lifting mechanism 11. A drain pipe 8 is fixedly installed on the side of the screening box 1. Support rods 9 are fixed to the bottoms of the screening box 1 and the fixed box 2. A collecting box 6 is fixed to the bottom of the fixed box 2. An air inlet 7 is opened on the side of the collecting box 6. Heating mechanisms 32 are fixed on the inner walls of both ends of the collecting box 6. An exhaust fan 30 is fixedly installed inside the motor box 3. The heating mechanism 32 is an electric heating plate. When the electric heating plate is energized, high temperature is generated to heat the air.

[0025] In this embodiment, a movable column 13 is installed on the lifting mechanism 11, and a movable disk 29 is fixed at one end of the movable column 13. A movable barrel 14 is movably installed inside the screening box 1, and the movable disk 29 is movably installed inside the movable barrel 14. A fixing block 25 is welded on the inner wall of the movable barrel 14, and a mounting hole 26 is opened inside the fixing block 25. A connecting rod 27 is movably installed inside the mounting hole 26, and a ring seat 28 is fixed at one end of the connecting rod 27, and the ring seat 28 cooperates with the movable disk 29. A partition plate 15 is welded on the inner wall of the screening box 1, and an opening 24 is opened on the partition plate 15. The movable barrel 14 is movably installed inside the opening 24, and a sealing ring is fixed on the inner wall of the opening 24, and the sealing ring contacts the outer wall of the movable barrel 14. An opening 16 is opened on the side of the movable barrel 14, and a filter screen is fixed on the inner wall of the opening 16, so that the water inside the movable barrel 14 can be discharged from the drain pipe 8 through the opening.

[0026] In this embodiment, a reduction motor 19 is fixedly installed at the bottom of the screening box 1, a fixing seat 18 is installed on the reduction motor 19, the fixing seat 18 is fixed to the bottom of the screening box 1, an arc cover 33 is fixed on the side of the fixing seat 18, a stirring rod 20 is installed on the reduction motor 19, a sealing ring seat 17 is fixed at the bottom of the screening box 1, a baffle 21 is fixed on the side of the fixing seat 18, the baffle 21 is in contact with the bottom of the movable barrel 14, a driven roller 22 is rotatably installed inside the screening box 1, the transmission assembly 4 includes an active roller and a transmission belt 23, the active roller is installed on the power mechanism 5, and the transmission belt 23 is movably installed on the active roller and the driven roller 22, and a limiting filter plate 31 is fixed on the top of the fixed box 2, the limiting filter plate 31 controls the thickness of the rapeseed on the transmission belt 23, and the limiting filter plate 31 filters the rapeseed when the air is drawn upward to prevent the rapeseed from being discharged upward with the wind flow under the drive of the wind flow.

[0027] The device provides the required electric energy for the electrical appliances inside the device through an external power supply. When the device is used, rapeseed seeds are first dropped into the interior of the movable barrel 14 through the feed hopper 10, and then water is injected into the interior of the movable barrel 14 through the water inlet pipe 12. The water is injected into the interior of the movable barrel 14, and the seeds with a relatively large specific gravity and fullness move downward and fall onto the fixed seat 18. Then the reduction motor 19 is started to drive the stirring rod 20 to rotate. The stirring rod 20 rotates to roll the seeds inside the movable barrel 14, and the rolling causes the impurities mixed between the seeds and the unfull seeds to float upward, and the drainage is discharged. The pipe 8 is closed, and after the water level is higher than the opening 16, it enters the top of the partition plate 15 through the opening 16. After stirring the seeds for a period of time, the stirring is stopped, and the lifting mechanism 11 is started to drive the movable column 13 to contract. The movable column 13 drives the movable disk 29 to move upward. After the movable disk 29 moves upward, it contacts the ring seat 28. The ring seat 28 and the movable disk 29 move simultaneously to move the water surface upward. The upward movement of the water surface causes the floating objects on the top of the water surface to drop from the top of the movable barrel 14 onto the partition plate 15. The drain pipe 8 is opened to drain the impurities and water on the partition plate 15 from the drain pipe 8. The water in the movable barrel 14 is discharged from the pipe 8. After the water in the movable barrel 14 is discharged, the height of the seeds is located at the bottom position of the opening 16, so that most of the water is discharged outward, and then the movable disk 29 is started again to drive the ring seat 28 to contact the fixed block 25, and the movable barrel 14 is pushed upward by the movable disk 29 and the ring seat 28. A gap is generated between the movable barrel 14 and the fixed seat 18. After the gap is generated, the stirring rod 20 is started again to move the seeds on the fixed seat 18 to one side to the conveyor belt 23, and the residual water is discharged from the water leakage hole at the bottom of the screening box 1. The seeds move along the conveyor belt 23. The filter plate 31 moves to the inside of the fixed box 2, and the limit filter plate 31 controls the thickness of the rapeseed on the conveyor belt 23. At the same time, the exhaust fan 30 is started to draw air upward. When drawing air, the limit filter plate 31 filters the rapeseed to prevent the rapeseed from being discharged upward with the wind flow. The wind enters from the bottom through the air inlet 7, and the wind drives the high temperature inside the collecting box 6 upward. The wind moves upward through the conveyor belt 23. The conveyor belt 23 is made of breathable material. The wind flow is moved from the bottom to the top to complete the preliminary drying of the seeds. After the preliminary drying, it is convenient for the seeds to be dried in the later stage.

[0028] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pre-sowing screening device, comprising a screening device body, characterized in that: The screening device body comprises a screening box (1), a fixed box (2) is fixed on the side of the screening box (1), a transmission component (4) is movably installed inside the fixed box (2), a motor box (3) is fixed on the top of the fixed box (2), a power mechanism (5) is fixed on the side of the fixed box (2), a feed hopper (10) is fixed on the top of the screening box (1), a lifting mechanism (11) is fixed on the side of the feed hopper (10), a water inlet pipe (12) is installed on the side of the lifting mechanism (11), a drainage pipe (8) is fixed on the side of the screening box (1), and support rods (9) are fixed on the bottoms of the screening box (1) and the fixed box (2).

2. A pre-sowing screening device according to claim 1, characterized in that: A collecting box (6) is fixed at the bottom of the fixed box (2), an air inlet (7) is opened on the side of the collecting box (6), a heating mechanism (32) is fixed on the inner walls at both ends of the collecting box (6), and an exhaust fan (30) is fixedly installed inside the motor box (3).

3. A pre-sowing screening device according to claim 1, characterized in that: A movable column (13) is installed on the lifting mechanism (11), a movable plate (29) is fixed to one end of the movable column (13), a movable barrel (14) is movably installed inside the screening box (1), and the movable plate (29) is movably installed inside the movable barrel (14).

4. A pre-sowing screening device according to claim 3, characterized in that: A fixing block (25) is welded on the inner wall of the movable barrel (14), a mounting hole (26) is opened inside the fixing block (25), a connecting rod (27) is movably mounted inside the mounting hole (26), a ring seat (28) is fixed at one end of the connecting rod (27), and the ring seat (28) matches the movable disk (29).

5. A pre-sowing screening device according to claim 3, characterized in that: A partition plate (15) is welded on the inner wall of the screening box (1), an opening (24) is formed on the partition plate (15), the movable barrel (14) is movably mounted inside the opening (24), a sealing ring is fixed on the inner wall of the opening (24), the sealing ring is in contact with the outer wall of the movable barrel (14), an opening (16) is formed on the side of the movable barrel (14), and a filter screen is fixed on the inner wall of the opening (16).

6. A pre-sowing screening device according to claim 1, characterized in that: A reduction motor (19) is fixedly mounted at the bottom of the screening box (1), a fixing seat (18) is mounted on the reduction motor (19), the fixing seat (18) is fixed to the bottom of the screening box (1), an arc cover (33) is fixed on the side of the fixing seat (18), and a stirring rod (20) is mounted on the reduction motor (19).

7. A pre-sowing screening device according to claim 6, characterized in that: A sealing ring seat (17) is fixed to the bottom of the screening box (1), a baffle (21) is fixed to the side of the fixed seat (18), the baffle (21) is in contact with the bottom of the movable barrel (14), and a driven roller (22) is rotatably mounted inside the screening box (1).

8. A pre-sowing screening device according to claim 1, characterized in that: The transmission assembly (4) comprises a driving roller and a transmission belt (23), wherein the driving roller is mounted on a power mechanism (5), and the transmission belt (23) is movably mounted on the driving roller and the driven roller (22), and a limiting filter plate (31) is fixed on the top of the fixed box (2).

Images