Rice hulling device and hulling method thereof

Abstract

The invention provides a rice hulling device and a hulling method thereof, and relates to the field of rice hulling, the rice hulling device comprises a feeding hopper, a hulling box and a winnowing box, a first rubber roller and a second rubber roller which rotate oppositely and unequally are arranged in the hulling box, and a winnowing assembly and a collecting assembly are arranged in the winnowing box; a limiting material table is arranged below the position between the first rubber roller and the second rubber roller, and a first auxiliary roller and a second auxiliary roller are arranged on the two sides of the limiting material table correspondingly. The limiting material table is matched to distribute the materials subjected to primary shelling, and then secondary shelling work is conducted on the materials subjected to primary shelling; therefore, the problems that in one-time hulling work of an existing hulling device, due to excessive rice flow or other problems, part of missed rice or rice which is not completely hulled is likely to occur, and discharging blockage is likely to occur are solved.

Description

Technical Field

[0001] The invention relates to the field of rice hulling, in particular to a rice hulling device and a hulling method thereof. Background Art

[0002] As one of the main grains in the world, rice has a hard and rough shell that covers the edible part of the rice. This shelled state is extremely inconvenient for eating. It is difficult for people to cook and eat rice directly. Therefore, the shelling process is crucial in the rice processing process.

[0003] The rice hulling device is mainly based on mechanical friction and extrusion. It is common to use two relatively moving surfaces, such as rubber rollers or sand plates, to apply external force to the rice. When the rice passes between the two surfaces, due to the friction and extrusion of the surfaces, the outer shell of the rice is gradually worn, broken and separated from the brown rice. For example, in the rubber roller hulling method, two rubber rollers rotating in opposite directions at different times cooperate with each other, and the rice is subjected to shear force between the rollers, causing the outer shell to break and fall off;

[0004] Most of the existing rice hulling devices are only equipped with two rubber rollers, so the rice can only be hulled once. During use, the hulling component may be overloaded due to the large amount of rice, resulting in the hull of some rice not being detached, or causing the hulling component to be blocked and the feeding to be blocked, which not only affects the hulling efficiency but also affects the subsequent screening work, making it inconvenient to use. Summary of the invention

[0005] The object of the present invention is to provide a rice hulling device and a rice hulling method thereof to solve the problems raised in the above background technology.

[0006] In order to solve the problems existing in the prior art, the present invention provides a rice hulling device and a hulling method thereof, comprising a feeding hopper, a hulling box and a winnowing box, wherein the hulling box is provided with a first rubber roller and a second rubber roller which rotate in opposite directions by unequal numbers, the winnowing box is provided with a winnowing component and a collecting component, a limiting material platform is provided below the first rubber roller and the second rubber roller, a first auxiliary roller and a second auxiliary roller are provided on both sides of the limiting material platform, a feeding port is provided on both sides of the first auxiliary roller and the second auxiliary roller, a driving box is provided at the rear of the hulling box, and a transmission structure is provided in the driving box.

[0007] Furthermore, the shape of the limiting material platform is arc-shaped, the first auxiliary roller and the second auxiliary roller are both located in the arc-shaped groove of the limiting material platform, and an umbrella-shaped material dividing head is provided above the limiting material platform.

[0008] Furthermore, the first auxiliary roller is located obliquely below the second rubber roller, and the second auxiliary roller is located obliquely below the first rubber roller.

[0009] Furthermore, the transmission structure includes a first motor and a second motor, the first motor and the second motor are respectively arranged behind the drive box, the output end of the first motor is provided with a first shaft connected to the first rubber roller, and the output end of the second motor is provided with a second shaft connected to the second rubber roller.

[0010] Furthermore, a second driven rod and a first driven rod are respectively disposed below the first shaft rod and the second shaft rod, the first driven rod is transmission-connected to the first auxiliary roller, and the second driven rod is transmission-connected to the second auxiliary roller.

[0011] Furthermore, a first transmission belt is connected between the periphery of the first shaft and the first driven rod, and a second transmission belt is connected between the second shaft and the second driven rod.

[0012] Furthermore, the first transmission belt and the second transmission belt are respectively arranged in a front-to-back staggered manner so as not to interfere with each other during use.

[0013] Furthermore, the air separation component includes a first material guide plate, a second material guide plate and a fan assembly. The first material guide plate and the second material guide plate are arranged obliquely from top to bottom on the inner top of the air separation box, and an air outlet connected to the fan assembly is provided below the second material guide plate.

[0014] Furthermore, the collecting assembly includes a material collecting box and a chip collecting box. The material collecting box is movably arranged below the second material guide plate, and the chip collecting box is located side by side on one side of the material collecting box.

[0015] Furthermore, a box door is provided on the surface of the air separation box, which is used to draw the material collection box and the chip collection box out of the air separation box when opened.

[0016] A rice hulling device and a rice hulling method based on the above-mentioned method include the following specific steps:

[0017] S1, adding the rice to be husked into the hopper, opening the valve of the hopper and letting the rice fall into the husking box, and the rice entering the husking box falls between the first rubber roller and the second rubber roller;

[0018] S2, the first motor and the second motor are started to drive the first rubber roller and the second rubber roller to rotate respectively, and the rice can be husked by squeezing the rice by the first rubber roller and the second rubber roller rotating in opposite directions at different times;

[0019] S3, while the first motor and the second motor respectively drive the first rubber roller and the second rubber roller to rotate, the first auxiliary roller and the second auxiliary roller are also driven to rotate synchronously, the rice squeezed by the first rubber roller and the second rubber roller is diverted to both sides through the limiting material table, and the rice diverted to both sides is subjected to secondary extrusion and shell breaking work through the cooperation of the first auxiliary roller and the second rubber roller and the cooperation of the second auxiliary roller and the first rubber roller;

[0020] S4, the rice and the husk after being hulled by the hulling mechanism in the hulling box are mixed and fall into the air separation box through the feeding port, and the rice and the husk are screened by the air separation component on the upper part of the air separation box, and the screened rice and the husk are respectively classified and collected by the collecting component.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention installs two auxiliary rubber rollers obliquely below the first rubber roller and the second rubber roller respectively, and through the transmission structure, the first rubber roller and the second rubber roller are rotated to perform husking work, and the two auxiliary rubber rollers are synchronously driven to rotate, and the two rotating auxiliary rubber rollers and the upper first rubber roller and the second rubber roller are staggered through the transmission belts arranged in the transmission structure. The purpose of the husking effect is to ensure that the two rotating auxiliary rubber rollers and the upper first rubber roller and the second rubber roller always keep unequal rotations in the opposite direction, so as to ensure the husking effect, and cooperate with the limiting material table to divert the material that has been husked once and then perform the secondary husking work on it, thereby solving the problem that the existing husking device is prone to partially missing rice or incompletely husked rice due to excessive rice flow or other problems during the first husking work, and the problem that the material discharge is easily blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a side view of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the drive box of the present invention;

[0028] Figure 6 It is a partial schematic diagram of the transmission structure of the present invention.

[0029] Figure numerals: 1. hopper; 2. shelling box; 3. box door; 4. first motor; 401. first shaft; 402. first transmission belt; 403. first driven rod; 5. drive box; 6. air separation box; 7. second motor; 701. second shaft; 702. second transmission belt; 703. second driven rod; 8. first rubber roller; 9. second rubber roller; 10. limiting material platform; 11. first auxiliary roller; 12. second auxiliary roller; 13. discharge port; 14. first guide plate; 15. second guide plate; 16. material collection box; 17. chip collection box; 18. fan assembly; 19. air blowing port. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0031] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0032] This embodiment provides a rice hulling device, as shown in the attached Figure 1-6 As shown, it includes a feeding hopper 1, a shelling box 2 and an air separation box 6. The shelling box 2 is provided with two first rubber rollers 8 and second rubber rollers 9 that rotate in opposite directions at different times. The air separation box 6 is provided with an air separation component and a collecting component. A limiting material platform 10 is provided below between the first rubber roller 8 and the second rubber roller 9. A first auxiliary roller 11 and a second auxiliary roller 12 are provided on both sides of the limiting material platform 10. Both sides of the first auxiliary roller 11 and the second auxiliary roller 12 are provided with a feed opening 13. A driving box 5 is provided at the rear of the shelling box 2, and a transmission structure is provided in the driving box 5.

[0033] After adding rice into the hopper 1, the valve is opened, and the rice falls into the hulling box 2. The first rubber roller 8 and the second rubber roller 9 and the first auxiliary roller 11 and the second auxiliary roller 12 in the hulling box 2 cooperate to hull the rice twice. The hulled rice falls into the air separation box 6. The air separation component in the air separation box 6 screens the rice and the husk. The screened rice and the husk are classified and collected by the collecting component, thereby completing the whole rice hulling, screening and collection work.

[0034] During the shelling process, in order to solve the existing problems such as excessive rice flow causing shelling blockage or material feeding blockage that affect the shelling work, such as the attached Figure 3 , Attachment Figure 4As shown, the limiting material platform 10 is in an arc shape, the first auxiliary roller 11 and the second auxiliary roller 12 are both located in the arc groove of the limiting material platform 10, and an umbrella-shaped material dividing head is provided above the limiting material platform 10;

[0035] After the first rubber roller 8 and the second rubber roller 9 are separated, the rice and the husk fall down and contact the umbrella-shaped dividing head on the limiting material platform 10. The umbrella-shaped dividing head separates the materials and guides them to both sides to achieve the effect of diversion treatment, which not only facilitates the subsequent secondary hulling work but also avoids blockage and the like.

[0036] In the process of shelling, in order to solve the problem that the existing one-time separation is prone to omission or incomplete shelling, such as the attached Figure 3 -Attached Figure 6 As shown, the transmission structure includes a first motor 4 and a second motor 7, the first motor 4 and the second motor 7 are respectively arranged at the rear of the driving box 5, the output end of the first motor 4 is provided with a first shaft rod 401 connected to the first rubber roller 8, the output end of the second motor 7 is provided with a second shaft rod 701 connected to the second rubber roller 9, the lower parts of the first shaft rod 401 and the second shaft rod 701 are respectively provided with a second driven rod 703 and a first driven rod 403, the first driven rod 403 is transmission-connected to the first auxiliary roller 11, the second driven rod 703 is transmission-connected to the second auxiliary roller 12, a first transmission belt 402 is connected between the periphery of the first shaft rod 401 and the first driven rod 403, a second transmission belt 702 is connected between the second shaft rod 701 and the second driven rod 703, the first auxiliary roller 11 is located obliquely below the second rubber roller 9, and the second auxiliary roller 12 is located obliquely below the first rubber roller 8;

[0037] A first auxiliary roller 11 and a second auxiliary roller 12 are respectively installed in the arc groove of the limiting material table 10. During the shelling process, when the first motor 4 starts to drive the first rubber roller 8 to rotate through the first shaft 401, the first driven rod 403 is synchronously driven to rotate through the first transmission belt 402, and the first auxiliary roller 11 is rotated by the rotation of the first driven rod 403. When the second motor 7 starts to drive the second rubber roller 9 to rotate through the second shaft 701, the second driven rod 703 is synchronously driven to rotate through the second transmission belt 702, and the second auxiliary roller 12 is rotated by the rotation of the second driven rod 703. After the first auxiliary roller 11 and the second auxiliary roller 12, which are respectively located obliquely below the first rubber roller 8 and the second rubber roller 9, rotate and cooperate with the first rubber roller 8 and the second rubber roller 9 that are originally in a rotating state, the materials after the diversion on both sides are subjected to secondary extrusion and shelling. The materials after the secondary shelling are respectively introduced into the air separation box 6 through the two discharge ports 13, thereby avoiding blockage and the like.

[0038] In order to ensure the shelling effect of the first auxiliary roller 11 and the second auxiliary roller 12 in cooperation with the first rubber roller 8 and the second rubber roller 9, as shown in the attached Figure 5, Attachment Figure 6 As shown, the first transmission belt 402 and the second transmission belt 702 are respectively arranged in a front-to-back staggered manner, and will not interfere with each other when used;

[0039] Through the staggered transmission belts, the transmission assembly of the first rubber roller 8 drives the first auxiliary roller 11 to rotate, and the transmission assembly of the second rubber roller 9 drives the second auxiliary roller 12 to rotate, so that the first rubber roller 8 and the first auxiliary roller 11 located below the second rubber roller 9 maintain the same rotation speed, and the second rubber roller 9 and the second auxiliary roller 12 located below the first rubber roller 8 maintain the same rotation speed, and the two groups of rubber rollers rotating in opposite directions with different numbers are always kept in mutual extrusion and cooperation, thereby ensuring the extrusion and shelling effect of rice.

[0040] In order to facilitate the staff to classify and collect the husked rice and husk, as shown in the attached Figure 3 And attached Figure 4 As shown, the air separation assembly includes a first material guide plate 14, a second material guide plate 15 and a fan assembly 18. The first material guide plate 14 and the second material guide plate 15 are tilted from top to bottom at the inner top of the air separation box 6. A blowing port 19 connected to the fan assembly 18 is provided below the second material guide plate 15. The collecting assembly includes a material collection box 16 and a dust collection box 17. The material collection box 16 is movably arranged below the second material guide plate 15. The dust collection box 17 is arranged side by side on one side of the material collection box 16. A box door 3 is provided on the surface of the air separation box 6. When opened, the material collection box 16 and the dust collection box 17 are drawn out of the air separation box 6.

[0041] The rice and shell mixture falling through the two discharge ports 13 first falls on the first guide plate 14 and is collected. The inclined first guide plate 14 guides the material to the second guide plate 15, and then the inclined second guide plate 15 guides the material downward. The fan assembly 18 generates wind after being started and blows out from the blowing port 19. The material falling from the second guide plate 15 is affected by the wind from the blowing port 19. The heavier rice falls vertically into the material receiving box 16 for collection, while the lighter shell is blown diagonally upward by the wind and finally falls into the debris collecting box 17 through the guide plate for collection, thereby completing the classified collection work. The staff only needs to open the box door 3 and then pull the material collecting box 16 and the debris collecting box 17 out of the air separation box 6 to take the material.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rice hulling device and a rice hulling method, comprising a hopper (1), a hulling box (2) and a winnowing box (6), wherein the hulling box (2) is provided with a first rubber roller (8) and a second rubber roller (9) rotating in opposite directions at different times, and the winnowing box (6) is provided with a winnowing component and a collecting component, characterized in that: A limiting material platform (10) is provided below the first rubber roller (8) and the second rubber roller (9), a first auxiliary roller (11) and a second auxiliary roller (12) are provided on both sides of the limiting material platform (10), and a material discharge port (13) is provided on both sides of the first auxiliary roller (11) and the second auxiliary roller (12), and a driving box (5) is provided at the rear of the shelling box (2), and a transmission structure is provided inside the driving box (5).

2. A rice hulling device and a rice hulling method according to claim 1, characterized in that: The limiting material platform (10) is in an arc shape, the first auxiliary roller (11) and the second auxiliary roller (12) are both located in the arc groove of the limiting material platform (10), and an umbrella-shaped material dividing head is provided above the limiting material platform (10).

3. A rice hulling device and a rice hulling method according to claim 1, characterized in that: The first auxiliary roller (11) is located obliquely below the second rubber roller (9), and the second auxiliary roller (12) is located obliquely below the first rubber roller (8).

4. A rice hulling device and a rice hulling method according to claim 1, characterized in that: The transmission structure comprises a first motor (4) and a second motor (7), wherein the first motor (4) and the second motor (7) are respectively arranged at the rear of a driving box (5), wherein an output end of the first motor (4) is provided with a first shaft rod (401) connected to a first rubber roller (8), and an output end of the second motor (7) is provided with a second shaft rod (701) connected to a second rubber roller (9).

5. A rice hulling device and a rice hulling method according to claim 4, characterized in that: A second driven rod (703) and a first driven rod (403) are respectively provided below the first shaft rod (401) and the second shaft rod (701); the first driven rod (403) is transmission-connected to the first auxiliary roller (11); and the second driven rod (703) is transmission-connected to the second auxiliary roller (12).

6. A rice hulling device and a rice hulling method according to claim 5, characterized in that: A first transmission belt (402) is connected between the periphery of the first shaft (401) and the first driven rod (403), and a second transmission belt (702) is connected between the second shaft (701) and the second driven rod (703).

7. A rice hulling device and a rice hulling method according to claim 6, characterized in that: The first transmission belt (402) and the second transmission belt (702) are respectively arranged in a front-to-back staggered manner so as not to interfere with each other during use.

8. A rice hulling device and a rice hulling method according to claim 1, characterized in that: The air separation component comprises a first material guide plate (14), a second material guide plate (15) and a fan component (18); the first material guide plate (14) and the second material guide plate (15) are arranged obliquely from top to bottom on the inner top of the air separation box (6); and a blowing port (19) connected to the fan component (18) is provided below the second material guide plate (15).

9. A rice hulling device and a rice hulling method according to claim 8, characterized in that: The collecting assembly comprises a material collecting box (16) and a chip collecting box (17); the material collecting box (16) is movably arranged below the second material guide plate (15); the chip collecting box (17) is arranged side by side on one side of the material collecting box (16); a box door (3) is provided on the surface of the air separation box (6); and when opened, the material collecting box (16) and the chip collecting box (17) are drawn out of the air separation box (6).

10. A rice hulling method based on the rice hulling device according to any one of claims 1 to 9, characterized in that: The specific steps include: S1, adding rice to be husked into the feed hopper (1), opening the valve of the feed hopper (1) and allowing the rice to fall into the husking box (2), and the rice entering the husking box (2) falls between the first rubber roller (8) and the second rubber roller (9); S2, the first motor (4) and the second motor (7) are started respectively to drive the first rubber roller (8) and the second rubber roller (9) to rotate, and the rice can be husked by squeezing the rice by the first rubber roller (8) and the second rubber roller (9) rotating in opposite directions at different times; S3, when the first motor (4) and the second motor (7) respectively drive the first rubber roller (8) and the second rubber roller (9) to rotate, the first auxiliary roller (11) and the second auxiliary roller (12) are simultaneously driven to rotate, and the rice squeezed by the first rubber roller (8) and the second rubber roller (9) is diverted to two sides through the limiting material platform (10), and the rice diverted to the two sides is subjected to secondary squeezing and shell breaking through the cooperation of the first auxiliary roller (11) and the second rubber roller (9) and the cooperation of the second auxiliary roller (12) and the first rubber roller (8); S4, the rice and the husks after being husked by the husking mechanism in the husking box (2) are mixed and fall into the air separation box (6) through the discharge port (13), and the rice and the husks are screened by the air separation component on the upper part of the air separation box (6), and the screened rice and the husks are respectively classified and collected by the collecting component.

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