Rice husked rice screening device

Abstract

The utility model provides a husked rice screening device. The husked rice screening device comprises a conveying belt, a to-be-processed rice tiling mechanism, flanges, a rice screening handrail, a shielding cover body and an air duct. According to the device, the conveying belt is adopted for conveying rice to be processed, the rice to be processed is screened and scattered through the rice screening railings in the conveying process, the lower side of the rice discharging end face of the shielding cover body is evenly, transversely and fixedly communicated with the air ducts, and the rice to be processed on the conveying belt is subjected to wind blowing through wind power of the air ducts; in the process of conveying rice and dispersing the rice by the rice screening handrail, rice hulls adhered to the rice and the surface of the rice are blown out, the blown rice hulls are prevented from overflowing through shielding of the shielding cover body, the blown rice hulls are discharged from the husked rice discharging materials of the shielding cover body, the husked rice screening of the rice is more thorough after wind blowing, and the practicability of the device is improved.

Description

Technical Field

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

[0002] Rice husks are the outer protective layer of rice grains.

[0003] Currently, sieves are commonly used in the process of separating rice husks. However, rice husks tend to adhere to the surface of the rice during sieving, resulting in incomplete sieving and a large amount of husk residue remaining in the grain, making it less practical. Summary of the Invention

[0004] The purpose of this utility model is to provide a rice husk sieving device, which has the advantage of more thorough rice husk sieving and solves the technical problem that rice husks are easy to stick to the surface of rice during sieving, resulting in incomplete sieving.

[0005] This utility model provides a rice husk sieving device, comprising:

[0006] The conveyor belt has a rice spreading mechanism fixedly installed on the front and rear side walls of the feeding end, and a rice passage gap is left between the lower side of the upper end of the rice spreading mechanism and the upper surface of the conveyor belt.

[0007] The conveyor belt is fixedly fitted with side guards on both the front and rear sides of its upper edge, and rice sieving rails are evenly and horizontally fixedly fitted between the side guards on both sides.

[0008] The rice screening rail is located between the rice spreading mechanism and the conveyor belt discharge end;

[0009] A shielding cover is fixedly fitted to the upper edge of the conveyor belt;

[0010] The lower edge of the shield is provided with a groove corresponding to the side guard on the same side, and the side guard is inserted into the groove on the same side;

[0011] The hull's coarse grain discharge end extends to the outside of the conveyor belt's feed end, and the hull's rice discharge end extends to the conveyor belt's discharge end.

[0012] The lower side of the rice discharge end face of the shielding cover is uniformly and horizontally connected to a ventilation duct, and the end of the ventilation duct near the shielding cover is inclined towards the middle section of the upper surface of the conveyor belt.

[0013] As a further optimization, in order to use a rice scraper to level the rice conveyed on the upper surface of the conveyor belt, the rice scraper can be adjusted by flipping and changing the rice passing gap size, making it suitable for leveling rice of different sizes. The rice leveling mechanism includes:

[0014] There are two vertical plates, which are distributed in parallel front and back. The lower ends of the two vertical plates are respectively fixedly assembled to the front and rear side walls of the feed end of the conveyor belt.

[0015] The upper ends of the front and rear side walls of the upright plate are provided with through holes, and round rods are inserted into the front and rear through holes with an interference fit.

[0016] Connecting plates are fixedly sleeved on the front and rear sides of the outer wall of the round rod, and rice scrapers are fixedly assembled on the lower inner sides of the front and rear connecting plates.

[0017] A gap is left between the lower end of the rice scraper and the upper surface of the conveyor belt for rice to pass through;

[0018] The round rod rotates within the through hole, causing the rice scraper to flip.

[0019] As a further optimization, to prevent the blown-out grains from leaking out and to guide the blown-out grains to be discharged from the lower end of the arc-shaped shield, the shield body includes:

[0020] A rectangular cover, with an arc-shaped shielding cover fixedly connected to the side near the feed end of the conveyor belt;

[0021] The rectangular cover has a rice discharge window on the lower side near the discharge end of the conveyor belt.

[0022] As a further optimization, in order to screen the conveyed rice for impurities, filter out large particles of impurities, and evenly disperse the rice during conveyance, the rice screening rails include:

[0023] A transverse connecting rod is fixedly connected to the upper end of the inner side surface of the front and rear flanges;

[0024] There are two horizontal connecting rods distributed parallel to each other on the left and right sides;

[0025] Longitudinal railings are evenly fixedly connected to the transverse connecting rod, and the lower end of the longitudinal railings is not in contact with the upper surface of the conveyor belt.

[0026] A rice sieving gap is formed between adjacent longitudinal rails;

[0027] The longitudinal railings on the left and right horizontal connecting rods are staggered.

[0028] As a further optimization, in order to screen the conveyed rice for impurities, filter out large particles of impurities, and more evenly disperse the conveyed rice, the number of rice screening rails fixed between the two sides is at least three.

[0029] As a further optimization, in order to collect the rice straw discharged from the lower end of the arc-shaped shield, a rice straw collection box is provided at the lower end of the arc-shaped shield.

[0030] As a further optimization, in order to filter dust from the air intake of the air duct, a dust filter is fixedly installed on the inner wall of the end of the air duct away from the shield.

[0031] As a further optimization, in order to provide stable support for the conveyor belt, support legs are fixedly installed on both the left and right sides of the lower edge of the conveyor belt, and rubber pads are attached to the bottom surface of the support legs.

[0032] As a further optimization, to provide more stable support for the device, the support leg includes:

[0033] There are two support plates, which are distributed parallel to each other at the front and back.

[0034] The upper ends of the two support plates are fixedly connected to the lower edge of the conveyor belt on the same side;

[0035] A crossbeam is fixedly mounted on the lower inner side of the support plates on both sides.

[0036] As a further optimization, to facilitate the installation and removal of the shield and the edge, a fixed connection structure is installed between the upper end of the edge and the lower edge of the shield, which includes:

[0037] The lower edge of the shield is uniformly and vertically fixed with insert rods on both the front and rear sides along the length direction.

[0038] The upper end of the front and rear retaining edges is provided with a slot corresponding to the insertion rod;

[0039] The insertion rod is inserted into the corresponding slot.

[0040] This utility model provides an improved rice husk sieving device, which has the following improvements and advantages compared with the prior art:

[0041] The device uses a conveyor belt to transport the rice to be processed. During the transport process, the rice is screened and dispersed by rice screening bars. Ventilation ducts are evenly and horizontally fixed on the lower side of the rice discharge end of the shielding cover. The air force of the ventilation ducts blows the rice on the conveyor belt. During the rice transport and dispersion by the rice screening bars, the rice husks adhering to the rice surface are blown out. The shielding cover prevents the blown-out rice husks from overflowing. The blown-out rice husks are discharged from the rice husk discharge outlet of the shielding cover. After the air blowing, the rice husks are screened more thoroughly, improving the practicality of the device. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the structure of this utility model;

[0044] Figure 2 This is a partial structural schematic diagram of the present invention;

[0045] Figure 3 This is a schematic diagram of the rice-laying mechanism and support leg structure of the present invention.

[0046] Figure 4 This is a schematic diagram of the shielding cover structure of this utility model;

[0047] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0048] Figure 6 This is a schematic cross-sectional view of the assembly structure between the shield and the edge of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Conveyor belt; 2. Rice spreading mechanism; 21. Vertical plate; 22. Round rod; 23. Through hole; 24. Connecting plate; 25. Rice scraper; 3. Rice screening railing; 31. Horizontal connecting rod; 32. Vertical railing; 4. Air duct; 5. Shelter; 51. Rectangular cover; 52. Arc-shaped shelter; 53. Rice discharge window; 6. Rice and chaff collection box; 7. Support leg; 71. Support plate; 72. Crossbeam; 8. Edge guard; 9. Fixed connection structure; 91. Slot; 92. Insert rod. Detailed Implementation

[0051] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] Please see Figure 1-6 This utility model provides a technical solution: a rice husk sieving device, comprising:

[0055] The conveyor belt 1 has a rice spreading mechanism 2 fixedly installed on the front and rear side walls of its feed end. A rice passage gap is left between the upper and lower sides of the rice spreading mechanism 2 and the upper surface of the conveyor belt 1. The rice to be processed is spread on the upper surface of the conveyor belt 1 after passing through the rice spreading mechanism 2 during the conveying process on the conveyor belt 1.

[0056] The conveyor belt 1 is fixedly equipped with side guards 8 on both the front and rear sides of the upper edge. Rice screening rails 3 are evenly and horizontally fixed between the two side guards 8. The front and rear side guards 8 prevent the rice from overflowing to the outside of the conveyor belt 1 after being laid out. During the conveying process of the rice after being laid out, the rice screening rails 3 screen out larger particles of impurities and break up the conveyed rice.

[0057] The rice screening rail 3 is located between the rice spreading mechanism 2 and the discharge end of the conveyor belt 1;

[0058] A shielding cover 5 is fixedly installed on the upper edge of the conveyor belt 1;

[0059] The lower edge of the shield 5 is provided with a groove corresponding to the side guard 8 on the same side, and the side guard 8 is inserted into the groove on the same side.

[0060] The end of the shield 5 for discharging coarse grains extends to the outside of the feed end of the conveyor belt 1, and the end of the shield 5 for discharging rice extends to the discharge end of the conveyor belt 1.

[0061] A fan duct 4 is uniformly and horizontally fixed to the lower side of the rice discharge end face of the shielding cover 5, and the end of the fan duct 4 near the shielding cover 5 is inclined towards the middle section of the upper surface of the conveyor belt 1.

[0062] The air blower 4 is used to blow the rice to be processed on the conveyor belt 1. During the rice conveying and being dispersed by the rice screening rails 3, the rice husks adhering to the surface of the rice are blown out. The blown rice husks are prevented from overflowing by the shielding cover 5. The blown rice husks are discharged from the rice husk discharge outlet of the shielding cover 5. After the air blowing, the rice husks are screened more thoroughly, which improves the practicality of the device.

[0063] In some embodiments, in order to level the rice conveyed on the upper surface of the conveyor belt 1 using the rice scraper 25, the rice scraper 25 is flipped and adjusted to adjust the rice passage gap size, which is suitable for leveling rice of different sizes. The rice leveling mechanism 2 includes:

[0064] There are two vertical plates 21, which are distributed in parallel front and back. The lower ends of the two vertical plates 21 are respectively fixedly assembled to the front and rear side walls of the feed end of the conveyor belt 1.

[0065] The upper end of the front and rear side walls of the upright plate 21 is provided with through holes 23. A round rod 22 is inserted into the front and rear through holes 23 with an interference fit. When sufficient external force is applied to overcome the friction of the interference fit, the round rod 22 can rotate in the front and rear through holes 23. After rotating to a suitable angle, the external force is removed, and the round rod 22 is limited in the front and rear through holes 23 by the friction of the interference fit.

[0066] Connecting plates 24 are fixedly sleeved on the front and rear sides of the outer wall of the round rod 22. Rice scrapers 25 are fixedly mounted on the lower end of the inner side of the front and rear connecting plates 24. The rotation of the round rod 22 causes the rice scrapers 25 on it to flip. After flipping, the rice scrapers 25 can change the distance between themselves and the upper surface of the conveyor belt 1. This distance is the rice passage gap. The rice passage gap is slightly larger than the thickness of the rice to be processed, so that the rice will not pile up when it passes through the conveyor belt. The rice is spread flat on the conveyor belt 1 and transported. At the same time, the size of rice of different types and different growing environments varies. By adjusting the rice passage gap, it is suitable for rice grains of different sizes.

[0067] A gap is left between the lower end of the rice scraper 25 and the upper surface of the conveyor belt 1 for rice to pass through.

[0068] The round rod 22 rotates within the through hole 23, causing the rice scraper 25 to flip.

[0069] In some embodiments, to prevent blown-out hay from leaking out and to guide the blown-out hay to be discharged from the lower end of the arc-shaped shield 52, the shield 5 includes:

[0070] A rectangular cover 51 is fixedly connected to an arc-shaped shield 52 on the side near the feed end of the conveyor belt 1. The grains swept out by the wind are blown along the rectangular cover 51 toward the arc-shaped shield 52 and finally discharged from the arc-shaped shield 52.

[0071] A rice discharge window 53 is provided on the lower side of the rectangular cover 51 near the discharge end face of the conveyor belt 1. Rice that has been screened and blown to remove chaff is discharged from the rice discharge window 53.

[0072] In some embodiments, in order to screen the conveyed rice for impurities, filter out large particles of impurities, and evenly disperse the conveyed rice, the rice screening bar 3 includes:

[0073] The transverse connecting rod 31 is fixedly connected to the upper end of the inner side surface of the front and rear stop edges 8;

[0074] There are two horizontal connecting rods 31 distributed parallel to each other on the left and right sides;

[0075] Longitudinal railings 32 are evenly fixedly connected to the transverse connecting rod 31, and the lower end of the longitudinal railings 32 is not in contact with the upper surface of the conveyor belt 1;

[0076] A rice sieving gap is formed between adjacent longitudinal railings 32. The rice sieving gap is slightly larger than the length of the rice, which has a sieving effect on impurities larger than the length of the rice.

[0077] The longitudinal railings 32 on the left and right horizontal connecting rods 31 are staggered. The staggered arrangement of the two sets of longitudinal railings 32 disperses the rice multiple times, improving the effect of wind sweeping to remove the chaff.

[0078] In some embodiments, in order to screen the conveyed rice for impurities, filter out large particles of impurities, and more evenly disperse the conveyed rice, at least three rice screening bars 3 are fixed between the two side guards 8. The multiple rice screening bars 3 disperse the rice, so that the chaff is blown away more thoroughly.

[0079] In some embodiments, in order to collect the husks discharged from the lower end of the arc-shaped shield 52, a husk collection box 6 is provided at the lower end of the arc-shaped shield 52. The husk collection box 6 may be made of transparent material to facilitate observation of the husk collection and timely cleaning.

[0080] In some embodiments, in order to filter dust from the air intake of the air duct 4, a dust filter is fixedly installed on the inner wall of the end of the air duct 4 away from the shield 5 to prevent dust from being introduced.

[0081] In some embodiments, in order to provide stable support for the conveyor belt 1, support legs 7 are fixedly mounted on both the left and right sides of the lower edge of the conveyor belt 1, and rubber pads are attached to the bottom surface of the support legs 7.

[0082] In some embodiments, to provide more stable support for the device, the support leg 7 includes:

[0083] There are two support plates 71, which are distributed parallel to each other at the front and back.

[0084] The upper ends of the two support plates 71 are fixedly connected to the lower edge of the conveyor belt 1 on the same side;

[0085] A crossbeam 72 is fixedly mounted on the lower inner side of the two side support plates 71.

[0086] In some embodiments, to facilitate the installation and removal of the shield 5 and the baffle 8, a fixed connection structure 9 is fitted between the upper end of the baffle 8 and the lower edge of the shield 5, which includes:

[0087] The lower edge of the shield 5 is uniformly and vertically fixed with insert rods 92 on both the front and rear sides along the length direction.

[0088] The upper end of the front and rear stoppers 8 is provided with a slot 91 corresponding to the insertion rod 92;

[0089] The insert rod 92 is inserted into the corresponding slot 91. The connection between the insert rod 92 and the slot 91 can fix the shield 5 to the upper end of the side flanges 8. When disassembling, the insert rod 92 of the shield 5 can be pulled out from the slot 91 at the upper end of the side flange 8, making disassembly more convenient.

[0090] Working principle:

[0091] During the conveyor belt 1 process, the rice is spread on the upper surface of the conveyor belt 1 after passing through the rice spreading mechanism 2. The front and rear guardrails 8 prevent the rice from overflowing to the outside of the conveyor belt 1 after spreading. During the conveying process after spreading, the rice passes through the rice screening rails 3 to separate larger particles of impurities and disperse the conveyed rice. The air blower 4 uses the air force to blow the rice on the conveyor belt 1. During the conveying and dispersion process of the rice by the rice screening rails 3, the rice husks adhering to the surface of the rice are blown out. The shielding cover 5 prevents the blown rice husks from overflowing. The blown rice husks are discharged from the rice husk discharge outlet of the shielding cover 5. After the air blowing, the rice husks are screened more thoroughly, improving the practicality of the device.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rice kernel and bran screening apparatus, characterized by, Include: The front and rear side walls of the feeding end of the conveyor belt (1) are fixedly provided with a rice flattening mechanism (2) to be processed, and a rice passing gap is left between the lower side of the upper end of the rice flattening mechanism (2) to be processed and the upper surface of the conveyor belt (1). The upper edges of the conveyor belt (1) are fixedly provided with a baffle (8) on both sides. The baffle (8) is fixedly provided with a rice screening rail (3) between the two sides. The rice screening rail (3) is located between the rice flattening mechanism (2) to be processed and the discharge end of the conveyor belt (1). The upper edge of the conveyor belt (1) is fixedly provided with a shielding cover (5). The lower edge of the shielding cover (5) is provided with a groove corresponding to the baffle (8) on the same side, and the baffle (8) is inserted into the groove on the same side. The rice discharging end of the shielding cover (5) extends to the outside of the feeding end of the conveyor belt (1), and the rice discharging end of the shielding cover (5) extends to the discharge end of the conveyor belt (1).

2. The rice, wheat and chaff screening apparatus according to claim 1, wherein The lower side of the rice discharging end surface of the shielding cover (5) is fixedly and horizontally connected with a wind cylinder (4), and the wind cylinder (4) is inclined towards the middle section of the upper surface of the conveyor belt (1) near one end of the shielding cover (5). The rice flattening mechanism (2) to be processed comprises: Two vertical plates (21) are parallelly arranged on the front and rear sides, and the lower ends of the two vertical plates (21) are fixedly provided on the front and rear side walls of the feeding end of the conveyor belt (1). The upper ends of the front and rear side walls of the vertical plate (21) are provided with through holes (23), and the front and rear through holes (23) are inserted with a round rod (22) in an interference fit. The outer wall of the round rod (22) is fixedly sleeved with a connecting plate (24) on both sides, and the inner side of the connecting plate (24) is fixedly provided with a rice scraper (25) at the lower end. The lower end of the rice scraper (25) is provided with a rice passing gap between the upper surface of the conveyor belt (1).

3. The rice, wheat and chaff screening apparatus according to claim 1, wherein The round rod (22) rotates in the through hole (23) to drive the rice scraper (25) to flip. The shielding cover (5) comprises: A rectangular cover (51) is fixedly connected with an arc-shaped shielding cover (52) near the feeding end of the conveyor belt (1).

4. The rice, wheat and chaff screening apparatus according to claim 1, wherein The lower side of the rice discharging window (53) is provided on the rectangular cover (51) near the discharge end of the conveyor belt (1). The rice screening rail (3) comprises: A horizontal connecting rod (31) is fixedly connected to the upper end of the inner side of the front and rear baffles (8). The horizontal connecting rod (31) is parallelly arranged on both sides. The horizontal connecting rod (31) is fixedly connected with a vertical rail (32) on both sides. The lower end of the vertical rail (32) is not in contact with the upper surface of the conveyor belt (1).

5. The rice, wheat and chaff screening apparatus according to claim 1, wherein The adjacent vertical rails (32) form a rice screening gap.

6. The rice, husked and hulled, screening apparatus according to claim 3, wherein The vertical rails (32) on the horizontal connecting rods (31) on both sides are staggered.

7. The rice, wheat and chaff screening apparatus according to claim 1, wherein The number of rice screening rails (3) fixedly arranged between the baffles (8) on both sides is at least three. The lower end of the arc-shaped shielding cover (52) is provided with a chaff collecting box (6). The inner wall of the end of the air cylinder (4) away from the shielding cover (5) is fixedly provided with a dustproof filter screen.

8. The rice, wheat and chaff screening apparatus according to claim 1, wherein The support leg (7) is fixedly arranged on the left and right sides of the lower edge of the conveying belt (1), and a rubber pad is fixedly attached to the bottom surface of the support leg (7).

9. A rice, husked and hulled grain screening apparatus according to claim 8, wherein, The support leg (7) comprises: Two support plates (71) are arranged in parallel at the front and back of the support leg (7); The upper ends of the two support plates (71) are fixedly connected to the same side of the lower edge of the conveying belt (1); The inner side surfaces of the two support plates (71) are fixedly connected to the lower ends of the two support plates (71).

10. The rice, wheat and chaff screening apparatus according to claim 1, wherein The upper end of the baffle (8) is fixedly connected to the lower edge of the shielding cover (5) through a fixed connection structure (9), which comprises: Two insertion rods (92) are fixedly arranged on the front and back of the lower edge of the shielding cover (5) in a length direction and in a uniform and vertical manner; The upper end of the baffle (8) is fixedly connected to the lower edge of the shielding cover (5) through a fixed connection structure (9), which comprises: The upper end of the baffle (8) is fixedly connected to the lower edge of the shielding cover (5) through a fixed connection structure (9), which comprises: The insertion rod (92) is inserted into the corresponding insertion slot (91).

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