Rice seed threshing and sorting device
The rice seed dehulling and sorting device addresses inefficiencies in conventional methods by using a dehulling and sorting unit to remove awns and separate chaff and husks through distinct discharge lines, enhancing work efficiency and precision in seed preparation.
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2026-03-18
- Publication Date
- 2026-07-27
AI Technical Summary
Conventional dehulling and sorting methods for rice seeds are inefficient and cumbersome, failing to precisely separate awns, chaff, and husks from high-quality seeds, and often require additional processes like salt water sorting or filter mesh sorting, which can introduce moisture issues or fail to separate foreign substances of similar size or specific gravity.
A rice seed dehulling and sorting device comprising a dehulling unit, conveying unit, and sorting unit that removes awns, separates and discharges chaff and husks through separate discharge lines, using a rice seed sorting net with specific hole diameters and inclined bodies to sort seeds based on size and density.
The device enables continuous dehulling and sorting of rice seeds, increasing efficiency by precisely separating awns, chaff, and husks, ensuring high-quality seeds are discharged separately, thus improving the overall work process.
Smart Images
Figure 112026033100795-PAT00001_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a rice seed dehulling and sorting device, and more specifically, to a dehulling device for removing awns from rice seeds, and a rice seed dehulling and sorting device that increases work efficiency by separating chaff and husks from rice seeds from which awns have been removed through the dehulling device and then discharging them separately through separate discharge lines so that dehulling and sorting proceed continuously. Background Technology
[0003] Generally, dehulling is a process of removing awns and pods attached to various grains, such as rice and barley seeds, that are not separated during the harvesting process in order to improve sowing precision during planting, and it is a task that is inevitably performed when preparing seeds for farming in rural areas.
[0004] The awns and pods attached to the grains are separated from the seeds by friction with the rotating blades of the threshing machine, and the separated awns are discharged together with the seeds.
[0005] Various types of dehulling machines have been used in the past. The dehulling principle basically utilizes friction between seeds and mechanical force; types include spiral roller, spatula blade rotary, and rod blade rotary types. There are also methods in which material is fed and discharged continuously, as well as methods that operate for a fixed amount of seeds over a set period of time.
[0006] The mechanical structure of the dehulling machine is mainly composed of an alternating arrangement of rotating blades and fixed blades, and as a continuous feeding method, separation by a blower is possible during discharge. It comes in vertical and horizontal types, and the dehulling performance is approximately 80 to 1,000 kg per hour depending on the machine capacity. It is essential for dehulling seeds in direct rice sowing and seedling sowing.
[0007] Conventional dehulling separators separate grains, awns, pods, chaff, and immature grains by using the wind power of a blower to blow lighter awns or pods cut inside far away and cause heavier ones to fall close. However, since this sorting method cannot precisely separate the grains, additional salt water sorting or additional filter mesh sorting must be performed.
[0008] However, salt water sorting is a process of separating good seeds from bad seeds by utilizing the property that healthy grain seeds sink in saltwater due to their high specific gravity, while bad seeds, such as chaff and immature grains, float due to their low specific gravity; this process is very cumbersome and inconvenient. Furthermore, seeds that have undergone salt water sorting have a high moisture content, which causes them to overcook if subjected to hot water sterilization, making hot water sterilization impossible. Additionally, the process of further sorting rice seeds using a filter mesh is also very cumbersome and inconvenient. In some cases, rice seeds are sorted by using wind power to blow away lighter seeds in small batches.
[0009] To solve these problems, a seed dehulling and grain sorter is disclosed in which conventionally dehulled grains such as rice and barley are passed through a seed sorting perforation drum, allowing awns, pods, chaff, and immature grains to pass through the perforation gaps during the passage, while high-quality seeds are discharged toward the outlet. However, the sorting method using a sorting perforation drum has the disadvantage of not being able to separate foreign substances such as chaff and mold that are the same size as high-quality seeds.
[0010] However, conventional seed dehulling and grain sorters sorted by selecting one of the methods, either sorting based solely on seed size or sorting based on the difference in specific gravity of the seeds.
[0011] The sorting method based solely on seed size has the problem of being unable to separate foreign substances or mold that are the same size as superior seeds. Additionally, the wind sorting method utilizing differences in seed specific gravity has the problem of being unable to separate foreign substances, such as PC seeds, which are small in size but have a specific gravity equal to or heavier than that of superior seeds. Prior art literature
[0013] Registered Patent No. 10-1570850 The problem to be solved
[0014] Accordingly, the present invention was devised to eliminate the aforementioned problems, and was completed as a technical task by focusing on a rice seed dehulling and sorting device that increases work efficiency by removing awns from rice seeds, sorting chaff and husks from rice seeds from which awns have been removed through the dehulling device, and then separating and discharging them through separate discharge lines. means of solving the problem
[0016] The present invention for achieving the above technical objective comprises a dehulling unit (10) for removing awns from rice seeds by introducing rice seeds, a conveying unit (20) for moving rice seeds discharged from the dehulling unit (10) to the upper side, and a sorting unit (30) for sorting and discharging rice seeds, immature rice seeds, chaff, and husks that are moved to the lower side through the conveying unit (20). The dehulling unit (10) comprises a supply hopper (11) with an upper side open to introduce rice seeds, a dehulling body (15) provided on the lower side of the supply hopper (11) and having a drive shaft and a plurality of blades inside a horizontal cylinder to remove awns from falling rice seeds, a discharge channel (15a) provided on the lower side of the dehulling body (15) for discharging rice seeds, and a drive shaft mounted on a first ground support (19) provided on the lower side of the dehulling body (15). The conveying unit (20) is composed of a first motor (17) that rotates, and the receiving unit (20) is composed of a receiving hopper (21) that receives rice seeds dropped through the discharge channel (15a), a conveyor body (25) that moves rice seeds to the upper side of the receiving hopper (21), and a first hose (27) that moves rice seeds moved to the upper side through the conveyor body (25) to the lower side, and the sorting unit (30) is composed of a downward-sloping type first-stage inclined body (41) that receives rice seeds fed through the first hose (27), a downward-sloping type second-stage inclined body (51) provided in the reverse direction at the lower end of the first-stage inclined body (41), and a downward-sloping type third-stage inclined body (67) provided parallel to the lower side of the second-stage inclined body (51), and rice seeds are discharged at the lower end of the first-stage inclined body (41). A first discharge passage (43) is provided, a second hose (45) for discharging chaff and husks separated from rice seeds is provided on the upper side of the first inclined body (41), a second discharge passage (52) for discharging immature rice seeds is provided on the lower side of the second inclined body (51), and a third discharge passage (59) for discharging husks is provided on the lower side of the third inclined body (67), and the first discharge passage (43),The present invention provides a rice seed netting and sorting device characterized in that the second discharge passage (52) and the third discharge passage (59) are provided on a second ground support body (31) in the form of a frame, a handle (35) is provided on the rear side of the second ground support body (31), and a moving wheel (33) is provided on the rear lower side of the second ground support body (31).
[0017] Additionally, a connecting hole (21a) is vertically formed on the lower side of the side wall of the receiving hopper (21), and a spacing adjustment plate (22) is provided to slide on the upper side of the connecting hole (21a) to adjust the passage spacing of the connecting hole (21a), a vertical elongated hole (22a) is formed on the spacing adjustment plate (22), and an adjustment bolt (23) is provided to be coupled to the vertical elongated hole (22a) to fix the position of the spacing adjustment plate (22).
[0018] In addition, a rice seed sorting net (71) having a plurality of through holes (72) formed on the upper side of the first inclined body (41) is introduced, wherein the diameter of the through holes (72) of the rice seed sorting net (71) is formed to be 8 / 10 to 9 / 10 of the diameter of the rice seeds being sorted, so that the rice seeds do not pass through and are discharged along the rice seed sorting net (71) through the first discharge path (43), and the immature rice seeds pass through the through holes (72) and fall to move to the second discharge path (52).
[0019] Additionally, the above-mentioned moving wheels (33) are provided as a pair on the rear lower side of the second ground support body (31) and connected by an axle (32), and each of the moving wheels (33) is connected to the second ground support body (31) by a hinge (34) and an axle pin (34a), so that when the moving wheels (33) are not in use, the moving wheels (33) are configured to rotate upward around the axle pin (34a) and be fixed.
[0020] In addition, the handle (35) is characterized by having a hook (36) on which a collection net for collecting rice seeds can be hung. Effects of the invention
[0022] According to the present invention described above, there are effects such as increasing work efficiency by using a dehulling machine to remove awns from rice seeds, and separating chaff and husks from rice seeds from which awns have been removed through the dehulling machine, and then separating and discharging them through separate discharge lines so that dehulling and sorting proceed continuously. Brief explanation of the drawing
[0024] FIGS. 1 to 10 are exemplary illustrations of a rice seed dehulling and sorting device according to the present invention. Specific details for implementing the invention
[0025] The specific details for implementing the present invention will be explained in more detail below with reference to the attached drawings.
[0026] The present invention relates to a rice seed dehulling and sorting device, comprising a dehulling machine for removing awns from rice seeds, and a rice seed dehulling and sorting device that increases work efficiency by separating chaff and husks from rice seeds from which awns have been removed through the dehulling machine and discharging them through separate discharge lines, thereby allowing dehulling and sorting to proceed continuously.
[0027] To implement the rice seed dehulling and sorting device of the present invention, it is first composed of a dehulling unit (10) that removes awns from rice seeds by introducing rice seeds as shown in FIG. 1, a conveying unit (20) that moves the rice seeds discharged from the dehulling unit (10) to the upper side, and a sorting unit (30) that sorts and discharges the rice seeds moved to the lower side through the conveying unit (20) into rice seeds, immature rice seeds, chaff, and husks.
[0028] As a specific embodiment of the present invention, the denetting unit (10) comprises a supply hopper (11) with an open upper side for feeding rice seeds, a denetting body (15) provided on the lower side of the supply hopper (11) and having a drive shaft and a plurality of blades inside a horizontal cylinder to remove awns from falling rice seeds, a discharge channel (15a) provided on the lower side of the denetting body (15) for discharging rice seeds, and a first motor (17) mounted on a first ground support (19) provided on the lower side of the denetting body (15) to rotate the drive shaft.
[0029] At this time, the drive shaft is driven by being connected to the first motor (17) and the belt (16), and the awns are removed from the rice seeds as they pass through the netting section (10).
[0030] Additionally, the above-mentioned conveying unit (20) is composed of a receiving hopper (21) that receives rice seeds dropped through the discharge channel (15a), a conveyor body (25) that moves the rice seeds to the upper side of the receiving hopper (21), and a first hose (27) that moves the rice seeds moved to the upper side through the conveyor body (25) to the lower side.
[0031] The above conveyor body (25) is driven by a chain (29) connected to a second motor (81) provided on a second ground support body (31) to be described later, where the upper gear (26) is connected.
[0032] At this time, as shown in FIG. 3, a connecting hole (21a) is vertically formed on the lower side of the side wall of the receiving hopper (21) to move the grain to the upper side, and a spacing adjustment plate (22) is provided to slide on the upper side of the connecting hole (21a) to adjust the passage spacing of the connecting hole (21a), a vertical elongated hole (22a) is formed on the spacing adjustment plate (22), and an adjustment bolt (23) is provided to be coupled to the vertical elongated hole (22a) to fix the position of the spacing adjustment plate (22).
[0033] Meanwhile, as shown in FIGS. 1 and 2, the sorting unit (30) is composed of a downwardly inclined first stage inclined body (41) that receives rice seeds supplied through the first hose (27), a downwardly inclined second stage inclined body (51) provided in the reverse direction at the lower end of the first stage inclined body (41), and a downwardly inclined third stage inclined body (67) provided parallel to the lower side of the second stage inclined body (51).
[0034] In addition, a first discharge channel (43) for discharging rice seeds is provided at the lower end of the first inclined body (41), a second hose (45) for discharging chaff and husks separated from rice seeds is provided at the upper end of the first inclined body (41), a second discharge channel (52) for discharging immature rice seeds is provided at the lower end of the second inclined body (51), and a third discharge channel (59) for discharging husks is provided at the lower end of the third inclined body (67).
[0035] At this time, a rice seed sorting net (71) having a plurality of through holes (72) formed on the upper side of the first inclined body (41) is introduced, and the diameter of the through holes (72) of the rice seed sorting net (71) is formed to be 8 / 10 to 9 / 10 of the diameter of the rice seeds being sorted, so that the rice seeds do not pass through and are discharged along the rice seed sorting net (71) through the first discharge path (43), and the immature rice seeds are configured to fall through the through holes (72) and move to the second discharge path (52).
[0036] Additionally, the first discharge path (43), the second discharge path (52), and the third discharge path (59) are provided on a second ground support body (31) in the form of a frame, a handle (35) is provided on the rear side of the second ground support body (31), and a wheel (33) is provided on the rear lower side of the second ground support body (31).
[0037] At this time, the moving wheels (33) are provided as a pair on the rear lower side of the second ground support body (31) and connected by an axle (32), and each of the moving wheels (33) is connected to the second ground support body (31) by a hinge (34) and an axle pin (34a), so that when the moving wheels (33) are not in use, the moving wheels (33) are configured to rotate upward around the axle pin (34a) and be fixed.
[0038] And, as shown in FIG. 1, the second hose (45) is connected to the top plate (42) installed on the upper part of the second ground support body (31) to discharge chaff and husks on the first inclined body (41), and the second hose (45) is extended to the third hose (85) connected to the suction pump (not shown) to be discharged and collected to the outside.
[0039] In addition, chaff and husks that did not pass through the second hose (45) are filtered and moved again at the lower part of the third inclined body (67). At this time, in order to quickly move the chaff and husks downward, a shaft fan with a wing (58) mounted on the shaft (57) is provided, and the shaft fan is installed inside the receiving case (56).
[0040] In addition, as shown in FIG. 1 and FIG. 10, a ring (36) is provided on the handle (35) to hang a collection net for collecting rice seeds.
[0041] In addition, a control unit (37) is provided on the side of the second ground support (31) to operate the rice seed netting and sorting device.
[0042] According to the rice seed dehulling and sorting device of the present invention as described above, work efficiency can be increased by allowing dehulling and sorting to proceed continuously through a dehulling machine that removes awns from rice seeds, and then sorting chaff and husks from rice seeds from which awns have been removed through the dehulling machine and discharging them separately through separate discharge lines.
[0043] The present invention described above has been explained with reference to an exemplary embodiment illustrated in the drawings, but this is merely illustrative, and it should be made clear to those skilled in the art that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be interpreted by the appended claims, and all technical ideas within an equivalent scope should be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols
[0045] 10: Net removal unit 11: Supply hopper 15: Netting 15a: Discharge passage 17: First motor 19: First ground support 20: Transfer section 21: Receiving hopper 25: Conveyor 27: No. 1 hose 30: Selection section 31: Second ground support 33: Wheels 35: Handle 41: 1st stage inclined body 43: 1st discharge path 45: No. 2 hose 51: No. 2 inclined body 52: 2nd discharge lane 59: 3rd discharge lane 67: Third stage inclined body
Claims
Claim 1 The apparatus comprises a dehulling unit (10) for removing awns from rice seeds by introducing rice seeds, a conveying unit (20) for moving rice seeds discharged from the dehulling unit (10) to the upper side, and a sorting unit (30) for sorting and discharging rice seeds, immature rice seeds, chaff, and husks that are moved to the lower side through the conveying unit (20). The dehulling unit (10) comprises a supply hopper (11) with an upper side open to allow rice seeds to be introduced, a dehulling body (15) provided on the lower side of the supply hopper (11) and equipped with a drive shaft and a plurality of blades inside a horizontal cylinder to remove awns from falling rice seeds, a discharge path (15a) provided on the lower side of the dehulling body (15) for discharging rice seeds, and a first motor (17) mounted on a first ground support (19) provided on the lower side of the dehulling body (15) to rotate the drive shaft. The conveying unit (20) is configured with a receiving hopper (21) that receives rice seeds dropped through the discharge channel (15a), a conveyor body (25) that moves the rice seeds to the upper side of the receiving hopper (21), and a first hose (27) that moves the rice seeds moved to the upper side through the conveyor body (25) to the lower side; the sorting unit (30) is configured with a downwardly inclined first stage inclined body (41) that receives rice seeds fed through the first hose (27), a downwardly inclined second stage inclined body (51) provided in the reverse direction at the lower end of the first stage inclined body (41), and a downwardly inclined third stage inclined body (67) provided parallel to the lower side of the second stage inclined body (51); and a first discharge channel (43) for discharging rice seeds is provided at the lower end of the first stage inclined body (41). A second hose (45) for discharging chaff and husks separated from rice seeds is provided on the upper side of the first inclined body (41), a second discharge path (52) for discharging immature rice seeds is provided on the lower side of the second inclined body (51), and a third discharge path (59) for discharging husks is provided on the lower side of the third inclined body (67), and the first discharge path (43), the second discharge path (52), and the third discharge path (59) are provided on a second ground support body (31) in the form of a frame.A rice seed sieving and sorting device characterized by having a handle (35) provided on the rear side of the second ground support (31) and a moving wheel (33) provided on the rear lower side of the second ground support (31), a connecting hole (21a) vertically formed on the lower side of the side wall of the receiving hopper (21), a spacing adjustment plate (22) provided to slide on the upper side of the connecting hole (21a) to adjust the passage spacing of the connecting hole (21a), a vertical elongated hole (22a) formed on the spacing adjustment plate (22), and an adjustment bolt (23) provided to be coupled to the vertical elongated hole (22a) to fix the position of the spacing adjustment plate (22). Claim 2 delete Claim 3 A rice seed sieving and sorting device according to claim 1, wherein a rice seed sorting net (71) having a plurality of through holes (72) formed on the upper side of the first inclined body (41) is introduced, and the diameter of the through holes (72) of the rice seed sorting net (71) is formed to be 8 / 10 to 9 / 10 of the diameter of the rice seeds being sorted, so that the rice seeds do not pass through and are discharged along the rice seed sorting net (71) through the first discharge path (43), and the immature rice seeds pass through the through holes (72) and fall to move to the second discharge path (52). Claim 4 In paragraph 3, the moving wheel (33) is provided as a pair on the rear lower side of the second ground support (31) and connected by an axle (32), and each moving wheel (33) is connected to the second ground support (31) by a hinge (34) and an axle pin (34a), so that when the moving wheel (33) is not in use, the moving wheel (33) is configured to rotate upward around the axle pin (34a) and be fixed. Claim 5 A rice seed netting and sorting device according to claim 4, characterized in that a ring (36) is provided on the handle (35) to hang a collection net for collecting rice seeds.