Rice polishing device for rice production

Abstract

The utility model discloses a rice polishing device for rice production. The rice polishing device comprises a rack body, a rice feeding hopper, a rice feeding flow limiting mechanism, a belt type grinding mechanism, a spraying pipe, a grinding roller pair and a control panel. A rack rice feeding part is arranged on one side of the rack body; the rice feeding hopper is fixed above the rice feeding part of the rack, and the rice feeding flow limiting mechanism is arranged in the rice feeding part of the rack; the belt type grinding mechanism and the grinding roller pair are arranged in the rack body in a relatively inclined manner; the spraying pipe is arranged between the rice feeding flow limiting mechanism and the grinding roller pair; rice grains enter the machine frame body from the rice feeding hopper, and after the belt type grinding mechanism and the grinding roller pair conduct dry and wet grinding and polishing on the rice grains, the rice grains are discharged from a rice outlet of the machine frame. The control panel is arranged on the outer side of the rack body and controls the rice grinding and polishing speed. The rice grains are polished and ground, so that starch on the surfaces of the rice grains is gelatinized, the rice looks clean and glossy, the taste of the rice can be improved, and the storage time of the rice is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of rice polishing equipment, specifically relating to a rice polishing device for rice production. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through various processes. The surface of rice grains after initial sieving still contains bran and chaff, affecting the appearance, shelf life, and taste of the cooked rice. Existing polishing machines have limited functionality, only capable of polishing, and polished rice often retains a significant amount of grinding powder, further impacting its quality. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and to provide a rice polishing device for rice production.

[0004] A rice polishing device for rice production includes: a frame body, a rice inlet hopper, a rice inlet flow limiting mechanism, a belt grinding mechanism, a spray pipe, grinding rollers, and a control panel; the frame body has a rice inlet section on one side; the rice inlet hopper is fixed above the rice inlet section, and the rice inlet flow limiting mechanism is located inside the rice inlet section; the belt grinding mechanism and grinding rollers are inclined relative to each other inside the frame body, and the spray pipe is located between the rice inlet flow limiting mechanism and the grinding rollers; the rice receiving side of the belt grinding mechanism corresponds to the rice inlet section; a rice outlet is located below one side of the frame body, and the rice outlet and the rice inlet hopper are located on the same side of the frame body; the rice outlet corresponds to the rice outlet side of the grinding rollers; a drain valve (15) is also provided at the lowest point inside the frame body; after the belt grinding mechanism and grinding rollers perform dry and wet grinding and polishing on the rice grains, the rice is discharged from the rice outlet; the control panel is located outside the frame body, and the control panel controls the rice grinding and polishing speed.

[0005] The frame body has an inclined rice trough at its lower interior. The inclined shafts of the grinding rollers are connected to both ends of the rice trough. The belt grinding mechanism is located above the grinding rollers, and the belt grinding mechanism and the grinding rollers are inclined relative to each other. The rice receiving side of the belt grinding mechanism corresponds to the rice feeding part of the frame. The rice feeding side of the grinding rollers is located at the lowest point of the rice trough. The water mist nozzles of the spray pipe correspond to the rice feeding side of the grinding rollers. The rice output side of the grinding rollers is located at the highest point of the rice trough.

[0006] The upper end of the rice feeding section of the frame is frustum-shaped, and a second rice feeding through hole is provided on one side of the upper end of the rice feeding section; the rice feeding flow limiting mechanism includes: a rice feeding wheel, a reduction gear transmission mechanism, and a rice feeding drive motor; a first rice feeding through hole is provided on the rice feeding wheel; the rice feeding drive motor drives the first rice feeding through hole through the reduction gear transmission mechanism to connect the rice feeding passage between the rice feeding hopper and the second rice feeding through hole.

[0007] The upper edge of the rice inlet section of the frame is provided with an inner stop; a bearing is provided at the center of the upper end of the rice inlet section of the frame, and a rice hopper support is provided above the rice inlet section of the frame; a rice hopper sleeve is provided at the upper end of the rice hopper support, and the lower part of the rice hopper is fitted into the rice hopper sleeve; a rice inlet baffle is provided inside the lower part of the rice hopper support, and the rice inlet baffle corresponds to the upper part of the second rice inlet through hole.

[0008] The rice feed wheel is a disc-shaped component, with a first rice feed through hole located on one side of the rice feed wheel; the edge of the rice feed wheel has a convex stop; a light shaft is located at the center of the lower end of the rice feed wheel, and scraper strips are located on both sides of the light shaft; the center lines of the scraper strips on both sides overlap and intersect on the normal line of the light shaft; the convex stop and the inner stop are fitted together; the light shaft is sleeved in the bearing.

[0009] The aforementioned reduction gear transmission mechanism consists of a gear ring and a drive gear. The gear ring is sleeved on the outer diameter of the feed wheel; the drive gear is fixed on the rotating shaft of the feed drive motor; and the drive gear meshes with the gear ring.

[0010] The belt grinding mechanism includes: a rice inlet hopper, a first grinding conveyor belt, a first grinding conveyor belt drive gear, a second grinding conveyor belt, a second grinding conveyor belt drive gear, and a grinding conveyor belt drive motor; the first grinding conveyor belt has a first conveyor drive roller, the first grinding conveyor belt drive gear is fixed to one side of the first conveyor drive roller, and the grinding conveyor belt drive motor is located on the other side of the first conveyor drive roller; the rice receiving side is located at one end of the first grinding conveyor belt, and the other end of the first grinding conveyor belt is the rice delivery side; the rice hopper of the grinding conveyor belt is located above the rice receiving side; the upper end of the rice inlet hopper of the conveyor belt corresponds to the second rice inlet hole, and the lower end of the rice inlet hopper of the conveyor belt is located on the rice receiving side; the first grinding conveyor belt drive gear and the second grinding conveyor belt drive gear mesh and transmit power; the lower end face of the second grinding conveyor belt is clearance-fitted with the upper end face of the first grinding conveyor belt; the grinding conveyor belt drive motor drives the first grinding conveyor belt and the second grinding conveyor belt to perform differential grinding.

[0011] Several water mist nozzles are provided below the spray pipe.

[0012] The grinding rollers include: a first grinding auger roller, a second grinding auger roller, and a roller drive unit; the first and second grinding auger rollers have the same structure; both the first and second grinding auger rollers are provided with spiral blades; both the spiral blades of the first and second grinding auger rollers are provided with grinding convex circles; the spiral blades of the first and second grinding auger rollers are interlaced; the roller drive unit includes: an auger gear pair and an auger drive motor; two auger roller gears are respectively fixed at the ends of the first and second grinding auger rollers; the auger drive motor drives the first and second grinding auger rollers to grind against each other through the auger gear pair.

[0013] The control panel is located above the rice outlet of the machine frame; the control panel is electrically connected to the rice feeding drive motor, the grinding conveyor belt drive motor and the auger drive motor via cables.

[0014] This technical solution provides a rice polishing device for rice production, comprising: a frame body, a rice inlet hopper, a rice inlet flow limiting mechanism, a belt grinding mechanism, a spray pipe, grinding rollers, and a control panel; a rice inlet section is located on one side of the frame body; the rice inlet hopper is fixed above the rice inlet section, and the rice inlet flow limiting mechanism is located inside the rice inlet section; the belt grinding mechanism and grinding rollers are arranged at relative inclinations within the frame body, and the spray pipe is located between the rice inlet flow limiting mechanism and the grinding rollers; rice grains enter the frame body from the rice inlet hopper, and after dry and wet grinding and polishing by the belt grinding mechanism and grinding rollers, the rice grains are discharged from the rice outlet of the frame; the control panel is located on the outside of the frame body, and the control panel controls the rice grinding and polishing speed; after polishing and grinding, the surface starch of the rice grains is gelatinized, making the rice look clean and shiny, improving the taste of the rice, and increasing the storage time of the rice. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of a rice polishing device for rice production according to this utility model;

[0016] Figure 2 This is a structural cross-sectional view of a rice polishing device for rice production according to this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a rice polishing device for rice production according to this utility model;

[0018] Figure 4 This is a schematic diagram of the rice inlet structure of a rice polishing device for rice production according to this utility model;

[0019] Figure 5 This is a schematic diagram of the rice feed wheel structure of a rice polishing device for rice production according to this utility model;

[0020] Figure 6 This is a partial cross-sectional view of the rice inlet of a rice polishing device for rice production according to this utility model. Detailed Implementation

[0021] The technical solution will be further described clearly and completely below with reference to the accompanying drawings. The described embodiments are only a part of the technical solution, not all of the embodiments. All other embodiments obtained by those skilled in the art based on this technical solution without creative effort are within the scope of protection of this utility model.

[0022] Example 1

[0023] See Figures 1 to 6 As shown, a rice polishing device for rice production includes: a frame body 1, a rice feeding hopper 2, a rice feeding flow limiting mechanism 3, a belt grinding mechanism, a spray pipe 5, grinding rollers 6, and a control panel 7.

[0024] The frame body 1 is a box-type structure. A rice inlet section 11 is provided on the upper side of one side of the frame body 1. The upper end of the rice inlet section 11 is frustum-shaped. An inner stop 111 is provided on the upper edge of the rice inlet section 11. A bearing 112 is provided at the center of the upper end of the rice inlet section 11. A second rice inlet through hole 113 is provided on one side of the upper end of the rice inlet section 11.

[0025] A rice hopper support 12 is provided above the rice inlet section 11 of the frame; a rice hopper sleeve 121 is provided at the upper end of the rice hopper support 12, and the rice inlet hopper 2 is fitted into the rice hopper sleeve 121 below; a rice inlet baffle 122 is provided inside the lower part of the rice hopper support 12.

[0026] The second rice inlet through hole 113 occupies about one-fifth of the area of ​​the upper frustum of the rice inlet section 11 of the frame; the rice inlet baffle plate 122 is located above the second rice inlet through hole 113;

[0027] The rice feeder 2 is equipped with a baffle 21 below it. The baffle 21 is used to prevent foreign objects from entering.

[0028] The rice feeding limiting mechanism 3 includes: a rice feeding wheel 31, a gear ring 32, a drive gear 33, and a rice feeding drive motor 34;

[0029] The rice feed wheel 31 is a disc-shaped component with an upward convex center and a first rice feed through hole 311 on the convex side. The edge of the rice feed wheel 31 has a convex stop 312. A light shaft 313 is provided at the center of the lower end of the rice feed wheel 31, and scraper strips 314 are provided on both sides of the light shaft 313. The center lines of the scraper strips 314 on both sides intersect the normal line of the light shaft 313, and the center lines of the scraper strips 314 on both sides coincide, that is, the center lines of the scraper strips 314 on both sides coincide and intersect the normal line of the light shaft 313.

[0030] The convex stop 312 is fitted with the inner stop 111; the optical shaft 313 is sleeved in the bearing 112;

[0031] The scraper bars 314 on both sides of the optical axis shaft 313 have the same structure, and the lower ends of the scraper bars 314 are made of rubber; the lower end surfaces of the scraper bars 314 on both sides are in contact with the upper end surface of the rice feeding part 11 of the frame.

[0032] The gear ring 32 is sleeved on the outer diameter of the rice feeding wheel 31. The rice feeding drive motor 34 is located on one side of the rice feeding part 11 of the frame. The drive gear 33 is fixed on the rotating shaft of the rice feeding drive motor 34. The drive gear 33 meshes with the gear ring 32. The gear ring 32 and the drive gear 33 form a gear ring transmission mechanism. The rice feeding drive motor 34 drives the rice feeding wheel 31 to rotate through the gear ring transmission mechanism. As the rice feeding wheel 31 rotates, the first rice feeding through hole 311 corresponds to the second rice feeding through hole 113.

[0033] The gear ratio of the gear ring 32 and the drive gear 33 is 12:1, that is, the gear ring 32 and the drive gear 33 form a reduction gear transmission mechanism.

[0034] The belt grinding mechanism is located inside the upper part of the frame body 1.

[0035] The belt grinding mechanism includes: a rice feeder 41, a first grinding conveyor belt 42, a first grinding conveyor belt drive gear 43, a second grinding conveyor belt 44, a second grinding conveyor belt drive gear 45, and a grinding conveyor belt drive motor 46.

[0036] The first grinding conveyor belt 42 is inclinedly arranged above the inside of the frame body 1;

[0037] The first grinding conveyor belt 42 is provided with a first conveying drive roller, and the first grinding conveyor belt drive gear 43 is fixed on one side of the first conveying drive roller.

[0038] One end of the first grinding conveyor belt 42 is the rice receiving side, and the other end of the first grinding conveyor belt 42 is the rice sending side; the rice hopper of the grinding conveyor belt is located above the rice receiving side; the upper end of the conveyor belt rice inlet hopper 41 corresponds to the second rice inlet through hole 113, and the lower end of the conveyor belt rice inlet hopper 41 is located on the rice receiving side.

[0039] The second grinding conveyor belt 44 is positioned above the first grinding conveyor belt 42, and the first grinding conveyor belt 42 is parallel to the second grinding conveyor belt 44.

[0040] The length of the second grinding conveyor belt 44 is shorter than that of the first grinding conveyor belt 42; one end of the second grinding conveyor belt 44 is fitted with the side wall of the conveyor belt rice inlet hopper 41 with a clearance.

[0041] The second grinding conveyor belt 44 is aligned with the rice feeding end of the first grinding conveyor belt 42;

[0042] The second grinding conveyor belt 44 is provided with a second conveying drive roller, and the second grinding conveyor belt drive gear 45 is fixed to one side of the second conveying drive roller;

[0043] The lower end face of the second grinding conveyor belt 44 is clearance-fitted with the upper end face of the first grinding conveyor belt 42;

[0044] The first grinding conveyor belt drive gear 43 meshes with the second grinding conveyor belt drive gear 45, and the rotational speed of the first grinding conveyor belt drive gear 43 is faster than that of the second grinding conveyor belt drive gear 45; the gear ratio between the first grinding conveyor belt drive gear 43 and the second grinding conveyor belt drive gear 45 is 3:5.

[0045] The grinding conveyor belt drive motor 46 is located on one side of the first conveyor drive roller or the second conveyor drive roller; the grinding conveyor belt drive motor 46 drives the first grinding conveyor belt 42 and the second grinding conveyor belt 44 to perform differential grinding.

[0046] The spray pipe 5 is located below the rice feeding side of the belt grinding mechanism; several water mist nozzles are provided below the spray pipe 5.

[0047] The frame body 1 has an inclined rice trough at the bottom; the grinding rollers 6 are inclinedly arranged below the belt grinding mechanism; the rice inlet side of the grinding rollers 6 is located at the lowest point of the rice trough; the water mist nozzles of the spray pipe 5 correspond to the rice inlet side of the grinding rollers; the rice outlet side of the grinding rollers 6 is located at the highest point of the rice trough.

[0048] The frame body 1 is provided with a rice outlet 13 on one side below; the rice outlet 13 corresponds to the rice outlet side of the grinding rollers 6;

[0049] The rice outlet 13 and the rice inlet 2 of the frame are located on the same side of the frame body 1;

[0050] The lowest point of the rice trough is also provided with a drain pipe 14, and a drain valve 15 is provided on the drain pipe 14.

[0051] The grinding rollers 6 include: a first grinding auger roller 61, a second grinding auger roller 62, and a roller drive unit 63; the first grinding auger roller 61 and the second grinding auger roller 62 have the same structure, and both the first grinding auger roller 61 and the second grinding auger roller 62 are provided with spiral blades; the two ends of the first grinding auger roller 61 and the second grinding auger roller 62 are axially connected to the lower part of the machine frame body 1.

[0052] The first grinding auger roller 61 and the second grinding auger roller 62 are parallel to each other; the spiral blades of the first grinding auger roller 61 and the spiral blades of the second grinding auger roller 62 are interlaced.

[0053] The first grinding auger roller 61 and the second grinding auger roller 62 are both provided with grinding convex circles on their spiral blades; the first grinding auger roller 61 and the second grinding auger roller 62 are both provided with spiral blades, and the pitch of the spiral blades gradually becomes less dense from the rice inlet side to the rice outlet side.

[0054] The roller drive unit 63 includes: an auger gear pair 631 and an auger drive motor 632. The auger gear pair 631 is provided with two auger roller gears. The two auger roller gears have the same structure and number of teeth. The two auger roller gears are respectively fixed to the ends of the first grinding auger roller 61 and the second grinding auger roller 62.

[0055] The auger drive motor 632 is located on one side of the grinding rollers 6. The auger drive motor 632 synchronously drives the first grinding auger roller 61 and the second grinding auger roller 62 to grind against each other through the auger gear pair 631.

[0056] The control panel 7 is located on the outside of the frame body 1; in this embodiment, for the convenience of using the equipment, the control panel 7 is located above the rice outlet 13 of the frame.

[0057] The mains power is connected to the control panel 7; the control panel 7 is electrically connected to the feed drive motor 34, the grinding conveyor belt drive motor 46 and the auger drive motor 632 via cables; the feed drive motor 34, the grinding conveyor belt drive motor 46 and the auger drive motor 632 are controlled by the control panel 7 to start, stop and speed.

Claims

1. A rice polishing device for rice production, comprising: The machine frame body (1), rice hopper (2), rice flow limiting mechanism (3), belt grinding mechanism, spray pipe (5), grinding rollers (6), and control panel (7) are characterized in that: a rice inlet section (11) is provided on one side of the machine frame body (1); the rice hopper (2) is fixed above the rice inlet section (11), and the rice flow limiting mechanism (3) is located inside the rice inlet section (11); the belt grinding mechanism and the grinding rollers (6) are arranged relatively inclined inside the machine frame body (1), and the spray pipe (5) is located between the rice flow limiting mechanism (3) and the grinding rollers (6); the belt grinding mechanism and the grinding rollers (6) are arranged relatively inclined inside the machine frame body (1), and the belt grinding mechanism is located between the rice flow limiting mechanism (3) and the grinding rollers (6); the belt grinding mechanism and the grinding rollers (6) are arranged relatively inclined. The rice receiving side of the grinding mechanism corresponds to the rice feeding part (11) of the frame; a rice outlet (13) is provided on the lower side of one side of the frame body (1), and the rice outlet (13) and the rice feeding hopper (2) are located on the same side of the frame body (1); the rice outlet (13) corresponds to the rice feeding side of the grinding roller (6); a drain valve (15) is also provided at the lowest point inside the frame body (1); after the belt grinding mechanism and the grinding roller (6) perform dry and wet grinding and polishing on the rice grains, they are discharged from the rice outlet (13); the control panel (7) is located on the outside of the frame body (1).

2. The rice polishing device for rice production according to claim 1, characterized in that: The lower part of the frame body (1) has an inclined rice trough. The grinding rollers (6) are inclinedly connected to both ends of the rice trough. The belt grinding mechanism is located above the grinding rollers (6). The belt grinding mechanism and the grinding rollers (6) are inclined relative to each other. The rice receiving side of the belt grinding mechanism corresponds to the rice feeding part (11) of the frame. The rice-feeding side of the grinding roller (6) is located at the lowest point of the rice trough; the water mist nozzle of the spray pipe (5) corresponds to the rice-feeding side of the grinding roller; the rice-exiting side of the grinding roller (6) is located at the highest point of the rice trough.

3. The rice polishing device for rice production according to claim 2, characterized in that: The upper end of the rice feeding part (11) of the frame is frustum-shaped, and a second rice feeding through hole (113) is provided on one side of the upper end of the rice feeding part (11); the rice feeding flow limiting mechanism (3) includes: rice feeding wheel (31), reduction gear transmission mechanism, and rice feeding drive motor (34); a first rice feeding through hole (311) is provided on the rice feeding wheel (31); the rice feeding drive motor (34) drives the first rice feeding through hole (311) through the reduction gear transmission mechanism to connect the rice feeding passage between the rice feeding hopper (2) and the second rice feeding through hole (113).

4. The rice polishing device for rice production according to claim 3, characterized in that: The upper edge of the rice inlet section (11) of the frame is provided with an inner stop (111); a bearing (112) is provided at the center of the upper end of the rice inlet section (11); a rice hopper support (12) is provided above the rice inlet section (11); a rice hopper sleeve (121) is provided at the upper end of the rice hopper support (12); the rice hopper (2) is fitted into the rice hopper sleeve (121) below; a rice inlet baffle (122) is provided inside the lower part of the rice hopper support (12); the rice inlet baffle (122) corresponds to the upper part of the second rice inlet through hole (113).

5. The rice polishing device for rice production according to claim 4, characterized in that: The rice feed wheel (31) is a disc-shaped component, and the first rice feed through hole (311) is located on one side of the rice feed wheel (31). The edge of the rice feed wheel (31) is provided with a convex stop (312). A light shaft rod (313) is provided at the center of the lower end of the rice feed wheel (31), and scraper strips (314) are provided on both sides of the light shaft rod (313). The center lines of the scraper strips (314) on both sides overlap and intersect on the normal line of the light shaft rod (313). The convex stop (312) is fitted with the inner stop (111). The light shaft rod (313) is sleeved in the bearing (112).

6. The rice polishing device for rice production according to claim 5, characterized in that: The reduction gear transmission mechanism consists of a gear ring (32) and a drive gear (33). The gear ring (32) is sleeved on the outer diameter of the feed wheel (31). The drive gear (33) is fixed on the shaft of the feed drive motor (34). The drive gear (33) meshes with the gear ring (32).

7. The rice polishing device for rice production according to claim 6, characterized in that: The belt grinding mechanism includes: a rice feeder (41), a first grinding conveyor belt (42), a first grinding conveyor belt drive gear (43), a second grinding conveyor belt (44), a second grinding conveyor belt drive gear (45), and a grinding conveyor belt drive motor (46); a first conveyor drive roller is provided in the first grinding conveyor belt (42), the first grinding conveyor belt drive gear (43) is fixed on one side of the first conveyor drive roller, and the grinding conveyor belt drive motor (46) is located on the other side of the first conveyor drive roller; the rice receiving side is located at one end of the first grinding conveyor belt (42), and the first grinding... The other end of the grinding conveyor belt (42) is the rice feeding side; the rice hopper of the grinding conveyor belt is located above the rice receiving side; the upper end of the conveyor belt rice inlet hopper (41) corresponds to the second rice inlet through hole (113), and the lower end of the conveyor belt rice inlet hopper (41) is located on the rice receiving side; the first grinding conveyor belt drive gear (43) and the second grinding conveyor belt drive gear (45) mesh and drive each other; the lower end face of the second grinding conveyor belt (44) is clearance-fitted with the upper end face of the first grinding conveyor belt (42); the grinding conveyor belt drive motor (46) drives the first grinding conveyor belt (42) and the second grinding conveyor belt (44) to grind at different speeds.

8. The rice polishing device for rice production according to claim 7, characterized in that: Several water mist nozzles are provided below the spray pipe (5).

9. The rice polishing device for rice production according to claim 8, characterized in that: The grinding rollers (6) include: a first grinding auger roller (61), a second grinding auger roller (62), and a roller drive unit (63); the first grinding auger roller (61) and the second grinding auger roller (62) have the same structure; both the first grinding auger roller (61) and the second grinding auger roller (62) are provided with spiral blades; both the spiral blades of the first grinding auger roller (61) and the second grinding auger roller (62) are provided with grinding convex circles; the spiral blades of the first grinding auger roller (61) and the spiral blades of the second grinding auger roller (62) are interlaced; the roller drive unit (63) includes: an auger gear pair (631) and an auger drive motor (632); the two auger roller gears are respectively fixed at the ends of the first grinding auger roller (61) and the second grinding auger roller (62); the auger drive motor (632) drives the first grinding auger roller (61) and the second grinding auger roller (62) to grind against each other through the auger gear pair (631).

10. The rice polishing device for rice production according to claim 9, characterized in that: The control panel (7) is located above the rice outlet (13) of the frame; the control panel (7) is electrically connected to the rice feeding drive motor (34), the grinding conveyor belt drive motor (46) and the auger drive motor (632) via cables.

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