Seed screening device

Abstract

The utility model relates to an agricultural planting seed screening device capable of removing impurities, in particular to a seed screening device which comprises a screening box, the front face and the back face of the inner wall of the screening box are in sliding connection with the front faces and the back faces of three screening plates respectively, and a servo motor drives a connecting rod and a cam to rotate. A cam pushes a sieve plate to move downwards to pull a spring to extend downwards, the spring shrinks to drive the sieve plate to move upwards to screen seeds on the upper surface of the sieve plate, the seeds of the middle sieve plate enter a filter box through a material transferring cover and a feeding port, a water pump pumps water in a water tank through a water pumping pipe, and the water is discharged into a flow dividing pipe and a spray head through a water discharging pipe. The seeds are injected into the filter box through a spray head, dust on the surfaces of the seeds falling into the filter box is cleaned, meanwhile, inferior seeds in the seeds float and are discharged into a waste collection box through a waste discharge port b, and the problems that an existing device is single in function and poor in seed screening effect, and the seed planting quality is affected are solved.

Description

Technical Field

[0001] The utility model relates to a seed screening device, in particular to a seed screening device for agricultural planting to remove impurities. Background Technique

[0002] Seed screening is one of the methods for cleaning crop seeds. Using seed sieves with different sieve hole sizes and shapes, impurities (such as mud blocks, sand grains, seeds of different crops, weed seeds, galls, glumes, etc.), shriveled grains and small seeds in the seeds are screened out, and high-quality seeds that are large, plump and neat are selected and retained to improve the seed quality.

[0003] Chinese Utility Model Patent Publication No.: CN218048892U, discloses a seed screening device for agricultural planting. The device pours seeds into the frame, and the driving motor drives the driving gear fixedly connected to its output end to rotate, thereby driving the driven gear to rotate through the driving gear. The driven gear drives the rotating screw to rotate, so that two moving plates sleeved on the rotating screw move along its length direction. The vertical block is driven to move through the moving plate, and then the filter net is resisted by the resisting plate, thereby driving the filter net to shake. The filter net shakes in the frame under the connection of the connecting spring and drives the fixing component to slide to filter the seeds. Through the setting of two layers of filter nets, the seeds are fully filtered. When the filtering is completed, the impurities will fall to the ground. The fixing motor drives the driving gear fixedly connected to its output end to rotate, the driving gear drives two moving racks meshed with it to move, and then the moving rack is not inserted into the extension plate. The filter net is pulled out by the staff by pulling the extension plate for cleaning or collecting.

[0004] The above-mentioned seed screening device has relatively single functions, resulting in some seeds with poor quality being mixed into the good seeds, and the seed screening effect is poor, affecting the quality of seed planting. Content of the Utility Model

[0005] To solve the problems raised in the above background technique. The utility model provides a seed screening device.

[0006] To achieve the above object, the utility model provides the following technical solution: A seed screening device, including a screening box, the front and back inner walls of the screening box are respectively slidably connected to the front and back of three sieve plates. Two waste discharge ports a and a discharge port are respectively opened on the left and right sides of the screening box. A screening component is arranged on the back of the screening box. A water tank is installed on the right side of the screening box. A water injection component is arranged on the upper surface of the water tank. The left side of the screening box is bolted to the right side of the waste collection box. The lower surface of the inner wall of the screening box is slidably connected to the lower surface of the filter box. The front of the filter box extends through the through hole opened on the front inner wall of the screening box to the outside of the screening box. The right side of the inner wall of the screening box is connected to the right side of the waste collection box through a drain port.

[0007] Preferably, the screening assembly includes a servo motor installed on the back of the screening box. The output shaft of the servo motor is fixedly connected to one end of the back of the connecting rod. One end of the front of the connecting rod is rotatably connected to the front of the inner wall of the screening box. Two cams are symmetrically installed on the outer surface of the connecting rod.

[0008] Preferably, connecting plates are fixedly connected to both the front and back of the sieve plate. The left and right sides of the connecting plates are respectively slidably connected to the left and right sides of the inner wall of the moving groove. A spring is fixedly connected to the upper surface of the moving groove. The upper surface of the spring is fixedly connected to the upper surface of the inner wall of the moving groove. And the two moving grooves are respectively opened on the front and back of the inner wall of the screening box.

[0009] Preferably, the water injection assembly includes a water pump installed on the upper surface of the water tank. The drainage end of the water pump is communicated with the upper surface of the shunt pipe through a drainage pipe. The shunt pipe is fixedly connected to the right side of the inner wall of the screening box. A number of nozzles are symmetrically installed on the left side of the shunt pipe. The water suction end of the water pump is communicated with the upper surface of the water tank through a water suction pipe.

[0010] Preferably, a dust-proof cover and a material-transferring cover are respectively fixedly connected to the left and right sides of the screening box. A feed inlet is opened on the right side of the screening box.

[0011] Preferably, a waste discharge port b is opened on the left side of the screening box.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the servo motor drives the connecting rod and the cam to rotate. The cam pushes the sieve plate to move downward and pulls the spring to extend downward. The spring contraction drives the sieve plate to move upward to screen the seeds on the upper surface of the sieve plate. The seeds on the middle sieve plate enter the filter box through the material-transferring cover and the feed inlet. The water pump extracts the water inside the water tank through the water suction pipe, discharges it into the shunt pipe and the nozzles through the drainage pipe, and injects it into the filter box through the nozzles to clean the dust on the surface of the seeds falling into the filter box. At the same time, the inferior seeds in the seeds float up and are discharged into the waste collection box through the waste discharge port b, solving the problems that the existing device has relatively single functions, poor seed screening effect, and affecting the seed planting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the structural schematic diagram of the present utility model;

[0016] Figure 2Schematic diagram of the internal structure of the screening box in the present utility model;

[0017] Figure 3 Front sectional structure schematic diagram of the screening box in the present utility model;

[0018] In the figure: 1, screening box; 2, moving groove; 3, spring; 4, connecting plate;

[0019] Screening assembly: 51, servo motor; 52, connecting rod; 53, cam;

[0020] 6, sieve plate; 7, waste discharge port a; 8, discharge port; 9, dust cover; 10, material transfer cover; 11, feed port; 12, filter box;

[0021] Water injection assembly: 131, water pump; 132, drain pipe; 133, water suction pipe; 134, shunt pipe; 135, spray head;

[0022] 14, water tank; 15, drain port; 16, waste collection box; 17, waste discharge port b. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] Please refer to Figures 1-3 , the present utility model provides the following technical solutions: A seed screening device includes a screening box 1. The front and back surfaces of the inner wall of the screening box 1 are respectively slidably connected to the front and back surfaces of three sieve plates 6. Two waste discharge ports a 7 and a discharge port 8 are respectively opened on the left and right sides of the screening box 1. A screening assembly is arranged on the back surface of the screening box 1. A water tank 14 is installed on the right side surface of the screening box 1. A water injection assembly is arranged on the upper surface of the water tank 14. The left side surface of the screening box 1 is bolted to the right side surface of the waste collection box 16. The lower surface of the inner wall of the screening box 1 is slidably connected to the lower surface of the filter box 12. The front surface of the filter box 12 passes through the through opening opened on the front surface of the inner wall of the screening box 1 and extends to the outside of the screening box 1. The right side surface of the inner wall of the screening box 1 is communicated with the right side surface of the waste collection box 16 through a drain port 15.

[0026] Specifically, by setting that the screening component includes a servo motor 51 installed on the back surface of the screening box 1, the output shaft of the servo motor 51 is fixedly connected to one end of the back surface of the connecting rod 52, one end of the front surface of the connecting rod 52 is rotatably connected to the front surface of the inner wall of the screening box 1, and two cams 53 are symmetrically installed on the outer surface of the connecting rod 52;

[0027] Specifically, by setting that connecting plates 4 are fixedly connected to both the front and back surfaces of the sieve plate 6, the left and right side surfaces of the connecting plates 4 are respectively slidably connected to the left and right side surfaces of the inner wall of the moving groove 2, a spring 3 is fixedly connected to the upper surface of the moving groove 2, the upper surface of the spring 3 is fixedly connected to the upper surface of the inner wall of the moving groove 2, and the two moving grooves 2 are respectively opened on the front and back surfaces of the inner wall of the screening box 1;

[0028] The servo motor 51 drives the connecting rod 52 and the cams 53 to rotate. The cams 53 push the sieve plate 6 to move downward. The upward movement of the sieve plate 6 drives the connecting plate 4 to slide downward in the moving groove 2. The downward movement of the connecting plate 4 pulls the spring 3 to extend downward. After the cams 53 are not in contact with the upper surface of the sieve plate 6, the spring 3 contracts to drive the sieve plate 6 to move upward, and so on to screen the seeds on the upper surface of the sieve plate 6.

[0029] Specifically, by setting that the water injection component includes a water pump 131 installed on the upper surface of the water tank 14, the drainage end of the water pump 131 is communicated with the upper surface of a shunt pipe 134 through a drain pipe 132. The shunt pipe 134 is fixedly connected to the right side surface of the inner wall of the screening box 1. A number of spray heads 135 are symmetrically installed on the left side surface of the shunt pipe 134. The water suction end of the water pump 131 is communicated with the upper surface of the water tank 14 through a water suction pipe 133;

[0030] The water pump 131 extracts the water inside the water tank 14 through the water suction pipe 133, discharges it into the shunt pipe 134 and the spray heads 135 through the drain pipe 132, injects it into the filtering box 12 through the spray heads 135, cleans the dust on the surface of the seeds falling into the filtering box 12, and at the same time, the inferior seeds in the seeds float up and are discharged into the waste collection box 16 through the waste discharge port b17.

[0031] Specifically, by setting that dust-proof covers 9 and material transfer covers 10 are respectively fixedly connected to the left and right side surfaces of the screening box 1, and a feed inlet 11 is opened on the right side surface of the screening box 1;

[0032] Among the three sieve plates 6, the upper sieve plate 6 screens out the larger impurities in the seeds, and the lower sieve plate 6 loads the fine impurities. These two sieve plates 6 are discharged into the dust-proof cover 9 through the left waste discharge port a7 and fall into the waste collection box 16 through the dust-proof cover 9. The seeds on the middle sieve plate 6 are discharged into the material transfer cover 10 through the discharge port 8 and enter the filtering box 12 through the material transfer cover 10 and the feed inlet 11.

[0033] Specifically, a waste discharge port b17 is provided on the left side of the screening box 1;

[0034] The spray head 135 injects water into the bottom of the filtering box 12 and the screening box 1, and at the same time generates a water flow to the left, discharging the floating inferior seeds into the waste collection box 16 through the waste discharge port b17.

[0035] The working principle and usage process of the present utility model:

[0036] When the present utility model is in use:

[0037] The seeds to be screened are placed into the screening box 1 through the feed hopper. The servo motor 51 drives the connecting rod 52 and the cam 53 to rotate. The cam 53 pushes the sieve plate 6 to move downward. The upward movement of the sieve plate 6 drives the connecting plate 4 to slide downward in the moving groove 2. The downward movement of the connecting plate 4 pulls the spring 3 to extend downward. After the cam 53 is not in contact with the upper surface of the sieve plate 6, the spring 3 contracts to drive the sieve plate 6 to move upward. In this way, the seeds on the upper surface of the sieve plate 6 are screened in a cycle. The upper sieve plate 6 screens the larger impurities in the seeds, and the lower sieve plate 6 loads the fine impurities. These two sieve plates 6 are discharged into the dust-proof cover 9 through the left waste discharge port a7 and fall into the waste collection box 16 through the dust-proof cover 9. The seeds on the middle sieve plate 6 are discharged into the transfer hood 10 through the discharge port 8 and enter the filtering box 12 through the transfer hood 10 and the feed port 11. The water pump 131 extracts the water inside the water tank 14 through the water suction pipe 133 and discharges it into the shunt pipe 134 and the spray head 135 through the drain pipe 132. It is injected into the filtering box 12 through the spray head 135 to wash the dust on the surface of the seeds falling into the filtering box 12. At the same time, the inferior seeds in the seeds float up and are discharged into the waste collection box 16 through the waste discharge port b17.

[0038] The circuits, electronic components and modules involved are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A seed screening device, comprising a screening box (1), characterized in that: The front and back sides of the inner wall of the screening box (1) are respectively slidably connected to the front and back sides of three sieve plates (6). Two waste discharge ports a (7) and a material discharge port (8) are respectively arranged on the left and right sides of the screening box (1). A screening assembly is arranged on the back side of the screening box (1). A water tank (14) is installed on the right side of the screening box (1). A water injection assembly is arranged on the upper surface of the water tank (14). The left side of the screening box (1) is bolted to the right side of the waste collection box (16). The lower surface of the inner wall of the screening box (1) is slidably connected to the lower surface of the filter box (12). The front side of the filter box (12) passes through a through opening formed in the front side of the inner wall of the screening box (1) and extends to the outside of the screening box (1). The right side of the inner wall of the screening box (1) is communicated with the right side of the waste collection box (16) through a drain port (15).

2. The seed screening device according to claim 1, wherein: The screening assembly includes a servo motor (51) installed on the back side of the screening box (1). The output shaft of the servo motor (51) is fixedly connected to one end of the back side of a connecting rod (52). The other end of the front side of the connecting rod (52) is rotatably connected to the front side of the inner wall of the screening box (1). Two cams (53) are symmetrically installed on the outer surface of the connecting rod (52).

3. A seed screening device according to claim 1, characterized in that: Connecting plates (4) are fixedly connected to both the front and back sides of the sieve plate (6). The left and right sides of the connecting plates (4) are respectively slidably connected to the left and right sides of the inner wall of a moving groove (2). A spring (3) is fixedly connected to the upper surface of the moving groove (2). The upper surface of the spring (3) is fixedly connected to the upper surface of the inner wall of the moving groove (2). And the two moving grooves (2) are respectively formed in the front and back sides of the inner wall of the screening box (1).

4. A seed screening device according to claim 1, wherein: The water injection assembly includes a water pump (131) installed on the upper surface of the water tank (14). The drainage end of the water pump (131) is communicated with the upper surface of a shunt pipe (134) through a drain pipe (132). The shunt pipe (134) is fixedly connected to the right side of the inner wall of the screening box (1). A plurality of spray heads (135) are symmetrically installed on the left side of the shunt pipe (134). The suction end of the water pump (131) is communicated with the upper surface of the water tank (14) through a suction pipe (133).

5. A seed screening device according to claim 1, characterized in that: Dust-proof covers (9) and material transfer covers (10) are respectively fixedly connected to the left and right sides of the screening box (1). A feed inlet (11) is formed in the right side of the screening box (1).

6. The seed screening device according to claim 1, characterized in that: A waste discharge port b (17) is formed in the left side of the screening box (1).

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