A rice seed screening and processing device

Abstract

This utility model discloses a rice seed screening and processing device, relating to the field of rice seed screening technology. It includes a soaking tank and a sieve cylinder. An inlet pipe and an outlet pipe are fixedly installed on the side of the soaking tank. A support unit, a traction unit, and a discharge unit are fixedly installed inside the soaking tank. The support unit is rotatably connected to both ends of the sieve cylinder. A feed hopper, a stirring unit, and a debris collection unit are fixedly installed on the support unit. A spiral plate is fixedly installed on the inner wall of the sieve cylinder. The beneficial effects are that the rotating sieve cylinder and spiral plate agitate the rice seeds, and the flexible movement of the rotating brush reduces seed accumulation, facilitating seed dispersion. The airflow from the vents carries light, floating debris such as empty husks from the rice seeds to the upper part of the liquid, effectively improving the efficiency of rice seed screening. The liquid and the gas sprayed from the vents reduce mutual collision damage during the screening process, ensuring the integrity of the rice seeds and the quality of the screening.

Description

Technical Field

[0001] This utility model relates to the field of rice seed screening technology, and in particular to a rice seed screening and processing device. Background Technology

[0002] Rice is a cereal crop belonging to the genus Oryza. Rice originated in China and India, and its cultivation dates back 7,000 years to the time when the ancient inhabitants of the Yangtze River basin in China were already practicing it. Rice breeding requires seed selection. A seed is the structure formed from the ovule of a seed plant after fertilization, generally composed of a seed coat, embryo, and endosperm. Rice seeds need to be selected for seed saving, and the methods for selecting rice seeds include sieve screening and buoyancy screening.

[0003] A search revealed that Chinese patent application CN222058253U discloses a rice seed screening device, which mainly uses a stirring frame to move the seeds soaking in the soaking frame at intervals to ensure that the rice seeds are soaked evenly.

[0004] Compared with existing technologies in related fields, it can be seen that when rice seeds are soaked using the above method, the rigid stirring mechanism generates rigid impact when turning the seeds, which will damage the rice seeds, destroy their integrity, and affect their quality. Utility Model Content

[0005] The purpose of this invention is to provide a rice seed screening and processing device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A rice seed screening and processing device includes a soaking tank and a sieve cylinder. An inlet pipe and an outlet pipe are fixedly installed on the side of the soaking tank. A support unit, a traction unit, and a discharge unit are fixedly installed inside the soaking tank. The two ends of the sieve cylinder are rotatably connected to the support unit. A feed hopper, a stirring unit, and a collection unit are fixedly installed on the support unit. The sieve cylinder is sleeved on the stirring unit and the collection unit. The sieve cylinder is driven to rotate by the traction unit. The sieve cylinder is connected to the feed hopper and the discharge unit. A spiral plate is fixedly installed on the inner wall of the sieve cylinder.

[0008] The mixing unit includes a mounting frame, a rotating drum, and an air guide seat. The mounting frame is fixedly mounted on the support unit. The mounting frame has mounting cavities arranged inside, and a power mechanism is fixedly mounted inside each mounting cavity. The rotating drum is arranged on the mounting frame and is driven to rotate by the power mechanism. A brush is fixedly mounted at the lower end of the rotating drum, and air holes connected to the rotating drum are arranged on the brush. The air guide seat is fixedly arranged on the mounting frame, and an air inlet pipe is fixedly mounted on the air guide seat. The air guide seat rotates and connects to the rotating drum.

[0009] Furthermore, the support unit includes a first baffle and a second baffle. Both the first baffle and the second baffle are fixedly installed inside the soaking tank and are fixedly connected to the mounting frame and the collection unit. The first baffle and the second baffle are respectively rotatably connected to the two ends of the screen cylinder. The first baffle is connected to the feed hopper and the second baffle is connected to the discharge unit.

[0010] Furthermore, the impurity collection unit includes a motor, a lead screw, a suction pipe, and a limiting plate. The motor is fixedly mounted on the second baffle. The lead screw is rotatably connected to the first and second baffles and is also rotatably connected to the output shaft of the motor. An impurity collection box is installed on the lead screw via a threaded connection. Impurity collection ports and material collection filter plates are fixedly provided on both sides of the impurity collection box. The material collection filter plates are inclinedly arranged on the upper and lower sides of the impurity collection ports. The suction pipe is mounted on the first baffle and connects to the impurity collection box. The limiting plate is fixedly mounted on the first and second baffles and is slidably connected to the impurity collection box.

[0011] Furthermore, the discharge unit includes a discharge pipe, which is fixedly installed on the second baffle and the soaking tank. The discharge pipe is connected to the screen cylinder, and a spiral conveying mechanism is installed inside the discharge pipe.

[0012] Furthermore, the traction unit includes a drive mechanism and a gear ring. The drive mechanism is fixedly installed on the side wall of the soaking tank, and a gear is fixedly installed at the output end of the drive mechanism. The gear ring is fixedly installed on the outer surface of the screen cylinder, and the gear ring meshes with the gear.

[0013] Furthermore, an air jet pipe is fixedly installed on the soaking tank, with the air jet pipe located directly above the sieve cylinder and the nozzle on the air jet pipe corresponding to the sieve cylinder.

[0014] Furthermore, a liquid level sensor is fixedly installed on the inner wall side of the soaking tank.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The rice seeds are turned over by the rotating sieve cylinder and spiral plate. The flexible agitation of the rotating brush reduces the accumulation of rice seeds and facilitates their dispersion. The airflow sprayed through the vents can better carry the empty shells and other light impurities in the rice seeds to the top of the liquid, effectively improving the efficiency of rice seed screening. The liquid and the gas sprayed through the vents reduce mutual collision damage during the rice seed screening process, ensuring the integrity of the rice seeds and the quality of screening.

[0017] 2. The sieve cylinder removes heavy impurities such as small stones from the rice seeds, and the liquid flow removes these impurities. The collection box, filter plate, and suction pipe remove light impurities such as empty shells, effectively improving the efficiency of impurity removal and ensuring continuous rice seed screening. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first isometric structural schematic diagram of a rice seed screening and processing device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the soaking tank, sieve cylinder, and discharge pipe of the rice seed screening and processing device described in this utility model;

[0021] Figure 3 This utility model describes a rice seed screening and processing device. Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This utility model describes a rice seed screening and processing device. Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is a second isometric structural schematic diagram of the rice seed screening and processing device described in this utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the soaking tank of a rice seed screening and treatment device according to the present invention.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Soaking tank; 2. Screen cylinder; 301. Mounting frame; 302. Mounting cavity; 303. Power mechanism; 304. Rotary drum; 305. Brush; 306. Air hole; 307. Air guide seat; 308. Air inlet pipe; 401. Motor; 402. Lead screw; 403. Limiting plate; 404. Collection box; 405. Collection filter plate; 406. Suction pipe; 501. Discharge pipe; 502. Screw conveying mechanism; 601. Drive mechanism; 602. Gear; 603. Gear ring; 7. First baffle; 8. Second baffle; 9. Air jet pipe; 10. Liquid level sensor; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Spiral plate. Detailed Implementation

[0027] like Figures 1-6As shown, a rice seed screening and processing device includes a soaking tank 1 and a sieve cylinder 2. An inlet pipe 11 and an outlet pipe 12 are fixedly installed on the side of the soaking tank 1. A support unit, a traction unit, and a discharge unit are fixedly installed inside the soaking tank 1. The two ends of the sieve cylinder 2 are rotatably connected to the support unit. A feed hopper, a stirring unit, and a collection unit are fixedly installed on the support unit. The sieve cylinder 2 is sleeved on the stirring unit and the collection unit. The sieve cylinder 2 is driven to rotate by the traction unit. The sieve cylinder 2 is connected to the feed hopper and the discharge unit. A spiral plate 13 is fixedly installed on the inner wall of the soaking tank 1. The liquid in the soaking tank 1 is brine. The rice seeds are screened by utilizing the difference in buoyancy between rice seeds and empty shells in the brine. The bottom of the sieve cylinder 2 is located in the liquid and is supported by a support unit. The spiral plate 13 is an elastic rubber plate, which can reduce the impact damage to the rice seeds when they are turned over. The inlet pipe 11 is connected to an external liquid delivery device, and the outlet pipe 12 is connected to an external recovery device. The external liquid delivery device delivers liquid to the soaking tank through the inlet pipe 11. Liquid is supplied to tank 1 to ensure sufficient liquid for soaking rice seeds. Rice seeds to be screened are added to screen cylinder 2 through the feed hopper. The rice seeds are soaked in the liquid. The traction unit drives screen cylinder 2 to rotate. Screen cylinder 2 drives rice seeds to rotate through spiral plate 13, thereby turning the rice seeds. The stirring unit also stirs the rice seeds, making them dispersed and facilitating the separation of empty shells and other impurities. The liquid reduces collisions between rice seeds, effectively reducing damage during the screening process and ensuring the integrity of the rice seeds and the quality of screening. Floating impurities are collected and processed by the impurity collection unit. At the same time, small stones from the rice seeds fall into soaking tank 1 through screen cylinder 2. The liquid in soaking tank 1 carries the screened small stones and other impurities through liquid outlet pipe 12 into an external recycling device for processing. The rotating spiral plate 13 transports the rice seeds in screen cylinder 2 into the discharge unit, where the screened rice seeds are discharged.

[0028] like Figures 2-4As shown, the mixing unit includes a mounting frame 301, a rotating drum 304, and an air guide seat 307. The mounting frame 301 is fixedly mounted on the support unit. Mounting cavities 302 are arranged inside the mounting frame 301, and a power mechanism 303 is fixedly mounted inside each mounting cavity 302. The rotating drum 304 is rotatably arranged on the mounting frame 301 and is driven to rotate by the power mechanism 303. A brush 305 is fixedly mounted on the lower end of the rotating drum 304, and air holes 306 communicating with the rotating drum 304 are arranged on the brush 305. The air guide seat 307 is fixedly arranged on the mounting frame 301, and an air inlet pipe 308 is fixedly mounted on the air guide seat 307. The air guide seat 307 rotatably communicates with the rotating drum 304. The power mechanism 303 operates using existing technology. The air inlet pipe 308 communicates with an external air supply device. When the rotating sieve cylinder 2 turns the rice seeds, the power mechanism 303 drives the brush 305 to rotate through the rotating cylinder 304. The brush 305 agitates the rice seeds, causing them to disperse and facilitating the screening of empty husks and other impurities. The brush 305 also reduces damage caused by collisions during the agitation. Simultaneously, an external air supply device delivers gas into the rotating cylinder 304 through the air inlet pipe 308 and ejects it through the air holes 306 on the brush 305. The gas ejected through the air holes 306 protects the rice seeds, reducing collisions and damage between them and ensuring their quality. Furthermore, the airflow ejected through the air holes 306 helps to carry light impurities such as empty husks in the rice seeds to the top of the liquid, effectively improving the quality and efficiency of rice seed screening.

[0029] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the support unit includes a first baffle 7 and a second baffle 8. Both the first baffle 7 and the second baffle 8 are fixedly installed inside the soaking tank 1 and are fixedly connected to the mounting frame 301 and the collection unit. The first baffle 7 and the second baffle 8 are rotatably connected to the two ends of the screen cylinder 2, respectively. The first baffle 7 is connected to the feed hopper, and the second baffle 8 is connected to the discharge unit. The first baffle 7 and the second baffle 8 support the two ends of the screen cylinder 2, thereby improving the stability of the screen cylinder 2.

[0030] like Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, the impurity collection unit includes a motor 401, a lead screw 402, a suction pipe 406, and a limiting plate 403. The motor 401 is fixedly mounted on the second baffle 8. The lead screw 402 is rotatably connected to the first baffle 7 and the second baffle 8, and is also rotatably connected to the output shaft of the motor 401. A impurity collection box 404 is threadedly mounted on the lead screw 402. Impurity collection ports and material collection filter plates 405 are fixedly arranged on both sides of the impurity collection box 404. The material collection filter plates 405 are inclinedly arranged on the upper and lower sides of the impurity collection ports. The suction pipe 406 is mounted on the first baffle 7 and connects to the impurity collection box 404. The limiting plate 403 is fixedly mounted on the first baffle 7 and the second baffle 8, and is slidably connected to the impurity collection box 404. The suction pipe 406 is an elastic tube. The motor 401 operates using... In the prior art, the suction pipe 406 is connected to an external suction device. The height of the collection port on the collection box 404 is equal to the height of the liquid in the soaking tank 1. The motor 401 drives the lead screw 402 to rotate, and the lead screw 402 drives the collection box 404 to move inside the screen cylinder 2. The collection filter plate 405 blocks the empty shells and other debris floating in the liquid, allowing the empty shells and other debris to enter the collection box 404 better through the collection port. At the same time, the external suction device extracts the empty shells and other debris collected in the collection box 404 through the suction pipe 406, completing the rapid collection and processing of empty shells and other debris, ensuring the cleanliness of the rice seeds after screening. During the movement of the collection box 404, the limiting plate 403 limits and guides the collection box 404, improving the stability of the collection box 404.

[0031] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the discharge unit includes a discharge pipe 501, which is fixedly installed on the second baffle 8 and the soaking tank 1. The discharge pipe 501 is connected to the screen cylinder 2. A screw conveying mechanism 502 is installed inside the discharge pipe 501. The screw conveying mechanism 502 operates using existing technology. The conveying component in the screw conveying mechanism 502 is an elastic screw blade. When conveying and discharging rice seeds, the elastic screw blade protects the rice seeds and reduces impact and collision damage. The rice seeds soaked and screened in the screen cylinder 2 enter the discharge pipe 501. The screw conveying mechanism 502 discharges and collects the screened rice seeds, completing the discharge of rice seeds.

[0032] like Figure 6As shown, the traction unit includes a drive mechanism 601 and a gear ring 603. The drive mechanism 601 is fixedly installed on the side wall of the soaking tank 1. A gear 602 is fixedly installed at the output end of the drive mechanism 601. The gear ring 603 is fixedly installed on the outer surface of the sieve cylinder 2. The gear ring 603 meshes with the gear 602. The drive mechanism 601 operates using existing technology. The drive mechanism 601 drives the gear 602 to rotate, and the gear 602 drives the sieve cylinder 2 to rotate through the gear ring 603, thereby enabling the sieve cylinder 2 to better agitate the rice seeds.

[0033] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, an air jet pipe 9 is fixedly installed on the soaking tank 1. The air jet pipe 9 is located directly above the sieve cylinder 2. The nozzle on the air jet pipe 9 corresponds to the sieve cylinder 2. The air jet pipe 9 is connected to an external air supply device. The external air supply device delivers gas intermittently into the air jet pipe 9 and sprays it out through the nozzle on the air jet pipe 9. The sprayed gas cleans the sieve holes of the sieve cylinder 2, preventing the sieve holes of the sieve cylinder 2 from becoming blocked, thereby better screening out small stones and other impurities from the rice seeds and improving the quality of rice seed screening.

[0034] like Figure 2 As shown, a liquid level sensor 10 is fixedly installed on the inner wall side of the soaking tank 1. The liquid level sensor 10 operates using existing technology. The liquid level sensor 10 detects the liquid level in the soaking tank 1 to ensure that there is enough liquid in the soaking tank 1 to soak the rice seeds.

[0035] Working principle: such as Figure 2 , Figure 5 As shown, the external liquid delivery device delivers liquid into the soaking tank 1 through the liquid inlet pipe 11 to ensure that there is enough liquid in the soaking tank 1 to soak the rice seeds, and the liquid level sensor 10 detects the liquid level in the soaking tank 1.

[0036] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the rice seeds to be screened are added to the liquid inside the sieve cylinder 2 through the feed hopper. The drive mechanism 601 drives the gear 602 to rotate, and the gear 602 drives the sieve cylinder 2 to rotate through the gear ring 603. The sieve cylinder 2 drives the rice seeds to rotate through the spiral plate 13, thereby turning the rice seeds in the liquid. Small stones and other heavy impurities in the rice seeds are screened out through the sieve cylinder 2 and fall into the soaking tank 1. The liquid in the soaking tank 1 carries the screened small stones and other impurities through the liquid outlet pipe 12 into the external recycling device for processing. Empty shells and other light impurities in the rice seeds float on the top of the liquid.

[0037] At the same time, such as Figures 2-4As shown, when the rotating sieve cylinder 2 turns the rice seeds, the power mechanism 303 drives the brush 305 to rotate through the rotating cylinder 304. The brush 305 moves the rice seeds, causing them to disperse. The external air supply device delivers gas into the rotating cylinder 304 through the air inlet pipe 308 and sprays it out through the air hole 306 on the brush 305. The gas sprayed out through the air hole 306 protects the rice seeds and reduces the impact and collision damage between the rice seeds. The airflow sprayed out through the air hole 306 can better carry the empty shells and other light floating debris in the rice seeds to the upper part of the liquid.

[0038] like Figure 1 , Figure 2 , Figure 4 , Figure 6 As shown, the motor 401 drives the lead screw 402 to rotate, and the lead screw 402 drives the collection box 404 to move inside the screen cylinder 2. The collection filter plate 405 blocks the empty shells and other debris floating in the liquid, allowing the empty shells and other debris to enter the collection box 404 through the collection port. At the same time, the external suction device extracts the empty shells and other debris collected in the collection box 404 through the suction pipe 406, completing the rapid collection and processing of empty shells and other light and floating debris.

[0039] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the sieve cylinder 2 conveys the screened rice seeds to the discharge pipe 501 through the spiral plate 13, and the screened rice seeds are discharged and collected through the spiral conveying mechanism 502, thus completing the discharge of rice seeds.

[0040] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the external gas supply device delivers gas intermittently into the jet pipe 9 and sprays it out through the nozzle on the jet pipe 9. The sprayed gas cleans the screen holes of the screen cylinder 2, preventing the screen holes of the screen cylinder 2 from becoming blocked.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rice seed screening and processing device, characterized in that, The device includes a soaking tank (1) and a sieve cylinder (2). The side of the soaking tank (1) is fixedly provided with an inlet pipe (11) and an outlet pipe (12). The inside of the soaking tank (1) is fixedly provided with a support unit, a traction unit and a discharge unit. The two ends of the sieve cylinder (2) are rotatably connected to the support unit. The support unit is fixedly installed with a feed hopper, a stirring unit and a collection unit. The sieve cylinder (2) is sleeved on the stirring unit and the collection unit. The sieve cylinder (2) is driven to rotate by the traction unit. The sieve cylinder (2) is connected to the feed hopper and the discharge unit. The inner wall of the sieve cylinder (2) is fixedly installed with a spiral plate (13). The mixing unit includes a mounting frame (301), a rotating drum (304), and an air guide seat (307). The mounting frame (301) is fixedly mounted on the support unit. The mounting frame (301) has mounting cavities (302) arranged inside it. A power mechanism (303) is fixedly mounted inside the mounting cavity (302). The rotating drum (304) is rotatably arranged on the mounting frame (301). The rotating drum (304) is driven to rotate by the power mechanism (303). A brush (305) is fixedly mounted on the lower end of the rotating drum (304). Air holes (306) communicating with the rotating drum (304) are arranged on the brush (305). The air guide seat (307) is fixedly arranged on the mounting frame (301). An air inlet pipe (308) is fixedly mounted on the air guide seat (307). The air guide seat (307) rotatably communicates with the rotating drum (304).

2. The rice seed screening treatment apparatus according to claim 1, characterized by: The support unit includes a first baffle (7) and a second baffle (8). The first baffle (7) and the second baffle (8) are both fixedly installed in the soaking tank (1) and are both fixedly connected to the mounting frame (301) and the collection unit. The first baffle (7) and the second baffle (8) are respectively rotatably connected to the two ends of the screen cylinder (2). The first baffle (7) is connected to the feed hopper and the second baffle (8) is connected to the discharge unit.

3. The rice seed screening treatment apparatus according to claim 2, characterized by: The collection unit includes a motor (401), a lead screw (402), a suction tube (406), and a limiting plate (403). The motor (401) is fixedly mounted on the second baffle (8). The lead screw (402) is rotatably connected to the first baffle (7) and the second baffle (8). The lead screw (402) is rotatably connected to the output shaft of the motor (401). A collection box (404) is threadedly mounted on the lead screw (402). The two sides of the collection box (404) are fixedly provided with a collection port and a collection filter plate (405). The collection filter plate (405) is inclinedly arranged on the upper and lower sides of the collection port. The suction pipe (406) is installed on the first baffle (7) and the suction pipe (406) is connected to the collection box (404). The limiting plate (403) is fixedly installed on the first baffle (7) and the second baffle (8) and the limiting plate (403) is slidably connected to the collection box (404).

4. The rice seed screening treatment apparatus according to claim 2, characterized by: The discharge unit includes a discharge pipe (501), which is fixedly installed on the second baffle (8) and the soaking tank (1). The discharge pipe (501) is connected to the screen cylinder (2), and a spiral conveying mechanism (502) is provided inside the discharge pipe (501).

5. The rice seed screening treatment apparatus according to claim 1, characterized by: The traction unit includes a drive mechanism (601) and a gear ring (603). The drive mechanism (601) is fixedly installed on the side wall of the soaking tank (1). A gear (602) is fixedly installed at the output end of the drive mechanism (601). The gear ring (603) is fixedly installed on the outer surface of the screen cylinder (2). The gear ring (603) meshes with the gear (602).

6. The rice seed screening treatment apparatus according to claim 1, characterized by: An air jet pipe (9) is fixedly installed on the soaking tank (1). The air jet pipe (9) is located directly above the sieve cylinder (2), and the nozzle on the air jet pipe (9) corresponds to the sieve cylinder (2).

7. The rice seed screening treatment apparatus according to claim 1, characterized by: A liquid level sensor (10) is fixedly installed on the inner wall side of the soaking tank (1).

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