CN113117779A

CN113117779A - Automatic shelling and screening device for rice

Info

Publication number: CN113117779A
Application number: CN202110455536.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Gao Chengqian
Current assignee: Gao Chengqian
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-16

Abstract

The invention discloses an automatic rice husking and screening device, and belongs to the technical field of intelligent agriculture. The utility model provides an automatic hulling sieving mechanism of corn, includes the frame, still includes: the husking assembly is connected to the frame and is used for husking rice; the motor is connected to the hulling assembly and used for driving the hulling assembly to work; the fan is fixedly connected to the frame and used for blowing off the rice hulls; a transport assembly connected to the frame; the device can rub the rice to peel the rice, and can simultaneously make the screening net perform transverse reciprocating motion and longitudinal reciprocating motion to screen the peeled rice on the screening net, so that the rice can not be broken through rubbing and peeling, the quality and the appearance of the peeled rice can be improved, and the rice yield can be improved.

Description

Automatic shelling and screening device for rice

Technical Field

The invention relates to the technical field of intelligent agriculture, in particular to an automatic rice husking and screening device.

Background

Agriculture is an industry for obtaining products by artificial cultivation by utilizing growth and development rules of animals and plants.

In intelligent agricultural production, rice hulling is a very important link, most of existing hulling is to throw rice grains to an impact ring by means of centrifugal inertia force, hulling is carried out due to impact, but rice is easily broken after impact, broken rice is more, the quality and the appearance of the rice are affected, the rice yield is low, and screening of the sizes of the rice grains cannot be carried out after hulling.

Disclosure of Invention

The invention aims to solve the problems that most of husking is to throw rice grains to an impact ring by virtue of centrifugal inertia force, husking is carried out due to impact, but rice is easy to be crushed due to impact, the quality and the appearance of the rice are influenced, the rice yield is low, and the screening of the size of the rice grains cannot be carried out after husking.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an automatic hulling sieving mechanism of corn, includes the frame, its characterized in that still includes: the husking assembly is connected to the frame and is used for husking rice; the motor is connected to the hulling assembly and used for driving the hulling assembly to work; the fan is fixedly connected to the frame and used for blowing off the rice hulls; the transportation assembly is connected to the frame and is used for transporting the hulled rice grains to the next process; a first belt for connecting the hulling assembly and the transport assembly; the screening assembly is connected to the frame and is used for screening the size of the hulled rice grains; and the second belt is used for connecting the conveying assembly and the screening assembly.

In order to achieve the shelling effect, preferably, the shelling assembly includes a first conveying assembly and a second conveying assembly, the first conveying assembly and the second conveying assembly include a first rotating shaft and a first conveying belt, the first rotating shaft is symmetrically and rotatably connected to the frame, the first conveying belt is rotatably connected to two sets of the first rotating shafts, the first conveying assembly and the second conveying assembly are in a vertical position relation, a pinion is fixedly connected to the first rotating shaft in the first conveying assembly, a bull gear is fixedly connected to the first rotating shaft in the second conveying assembly, the pinion and the bull gear are meshed, and the motor is fixedly connected to the first rotating shaft in the first conveying assembly.

In order to facilitate conveying the hulled rice to the next process, preferably, the conveying assembly comprises a second rotating shaft and second conveying belts, the second rotating shaft is symmetrically and rotatably connected to the frame, the second conveying belts are rotatably connected to the two groups of second rotating shafts, and the first belt is connected with the first rotating shaft and the second rotating shaft.

In order to realize the size of the rice after shelling, preferably, the screening assembly comprises a bottom plate and a fixing frame, the bottom plate is fixedly connected to the frame, a second spring is fixedly connected to the fixing frame, one end, far away from the fixing frame, of the second spring is fixedly connected to the bottom plate, a third rotating shaft is rotatably connected to the bottom plate, a second belt is connected to the second rotating shaft and the third rotating shaft, a rotating wheel is fixedly connected to the third rotating shaft, a connecting rod is rotatably connected to the rotating wheel, a sliding rod is fixedly connected to the fixing frame, one end, far away from the rotating wheel, of the connecting rod is rotatably connected to the sliding rod, and a screening net is slidably connected to the fixing frame.

In order to facilitate the collection and the unified emptying of the blown rice hulls, preferably, the frame is fixedly connected with an emptying box, and the frame is provided with a rice hull collecting box.

In order to improve the effect of quick shelling, a fixed seat is fixedly connected to the frame, a friction plate is fixedly connected to the fixed seat, and the friction plate is matched with the first transmission belt.

In order to make the rice and the first conveying belt be attached more closely and improve the shelling effect, further, two sets of first rotating shafts are rotatably connected with a fixed plate, a first spring is fixedly connected to the fixed plate, one end, far away from the fixed plate, of the first spring is fixedly connected with a fixed block, one end, far away from the first spring, of the fixed block is fixedly connected with a roller, the roller is matched with the first conveying belt, a telescopic rod is fixedly connected to the fixed block, and one end, far away from the fixed block, of the telescopic rod is fixedly connected to the fixed plate.

In order to improve the shelling effect, preferably, the frame is fixedly connected with a piston, a pushing block is connected in the piston in a sliding mode, the pushing block is connected in the piston in a sliding mode, a push rod is connected to the pushing block in a rotating mode, one end, far away from the pushing block, of the push rod is connected to the fixing frame in a rotating mode, an air inlet pipe and an air outlet pipe are fixedly connected to the piston, and one end, far away from the piston, of the air outlet pipe leads to the interior of the material.

In order to improve the screening efficiency, further, two sets of runners symmetry sets up in the third pivot, even fixedly connected with lug on the runner, lug and mount phase-match.

In order to prolong the service life of the screening assembly, further, a ball seat is fixedly connected to the fixing frame and matched with the bump.

Compared with the prior art, the invention provides an automatic rice hulling and screening device, which has the following beneficial effects:

1. this automatic hulling sieving mechanism of corn through the frictional heating, dries the corn when the hull, makes the rice husk on the corn become drier more, makes between rice husk and the grain reduce the viscosity of moisture sticky, is favorable to the rice husk to drop from the corn more.

2. This automatic hulling sieving mechanism of corn, through the elasticity of first spring, enable the corn and the better laminating of first conveyer belt, the effect of further improvement hulling.

The invention rubs the rice by the opposite rotation of two groups of first transmission belts with different speeds to peel the rice, and simultaneously, the screening net performs transverse reciprocating motion and longitudinal reciprocating motion to screen the peeled rice on the screening net, the device peels the rice by friction without breaking the rice, the quality and the appearance of the peeled rice are improved, and the rice yield is improved.

Drawings

FIG. 1 is a schematic structural diagram of an automatic rice husking and screening apparatus according to the present invention;

FIG. 2 is a schematic view of the structure A in FIG. 1 of an automatic rice husking and screening apparatus according to the present invention;

FIG. 3 is a schematic structural diagram of a rice automatic husking and screening apparatus B in FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of a rice automatic husking and screening apparatus of FIG. 1, wherein C is a reference numeral;

FIG. 5 is a schematic structural diagram of an automatic rice husking and screening apparatus D in FIG. 1 according to the present invention;

FIG. 6 is a schematic structural diagram of a rice automatic husking and screening apparatus E in FIG. 5 according to the present invention;

FIG. 7 is a schematic structural view of F in FIG. 1 of an automatic rice husking and screening apparatus according to the present invention;

FIG. 8 is a top view of a first conveyor belt of the automatic rice husking and screening apparatus according to the present invention;

FIG. 9 is a side view of a fixing frame of an automatic rice husking and screening apparatus according to the present invention;

FIG. 10 is a schematic structural diagram of a bottom plate of an automatic rice husking and screening apparatus according to the present invention;

fig. 11 is a partial perspective view of an automatic rice husking and screening apparatus according to the present invention.

In the figure: 1. a material placing box; 103. a rice hull collecting box; 104. a fan; 2. a first conveyor belt; 201. a first rotating shaft; 202. a fixing plate; 2021. a first spring; 2022. a fixed block; 2023. a roller; 203. a fixed seat; 2031. a friction plate; 204. a telescopic rod; 3. a second rotating shaft; 301. a second conveyor belt; 302. a first belt; 4. a base plate; 401. a third rotating shaft; 4011. a rotating wheel; 4012. a bump; 4013. a second spring; 4014. a connecting rod; 4015. a slide bar; 4016. screening a net; 402. a ball seat; 403. a fixed mount; 5. a piston; 501. a push rod; 502. a pushing block; 503. an air inlet pipe; 504. an air outlet pipe; 6. a first collection tank; 7. a second collection tank; 8. a motor; 801. a pinion gear; 802. a bull gear; 10. a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus includes a frame 10, and further includes: a hulling assembly coupled to the frame 10 for hulling rice; the motor 8 is connected to the shelling assembly and used for driving the shelling assembly to work; a fan 104 fixedly connected to the frame 10 for blowing off the rice hulls; a transporting assembly connected to the frame 10 for transporting the hulled rice to a next process; wherein, the first belt 302 is used for connecting the hulling assembly and the transportation assembly; a screening assembly connected to the frame 10 for screening the size of the hulled rice grains; the second belt 9 is used for connecting the conveying assembly and the screening assembly;

through putting the corn on the husking subassembly, the husking subassembly is shelled the corn, husking subassembly transports the corn after being shelled to next process afterwards, it links to each other with the transportation subassembly to shelling the subassembly through first belt 302, the husking subassembly drives the transportation subassembly work, when the corn drops on the transportation subassembly, fan 104 just circular telegram when putting the corn on the husking subassembly rotates, the position of transportation subassembly will be less than the husking subassembly, so at the in-process that drops, fan 104 blows off the rice husk, because rice is heavier than the rice husk, so rice falls into on the transportation subassembly, in being transported the screening subassembly by the transportation subassembly, through second belt 9, link to each other transportation subassembly with the screening subassembly, the transportation subassembly drives the screening subassembly work, the screening subassembly carries out the screening of size to the rice after the husking.

Example 2:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the hulling assembly comprises a first conveying assembly and a second conveying assembly, wherein the first conveying assembly and the second conveying assembly respectively comprise a first rotating shaft 201 and a first conveying belt 2, the first rotating shafts 201 are symmetrically and rotatably connected to the frame 10, the first conveying belts 2 are rotatably connected to two groups of first rotating shafts 201, the first conveying assembly and the second conveying assembly are in a vertical position relation, a small gear 801 is fixedly connected to the first rotating shaft 201 in the first conveying assembly, a large gear 802 is fixedly connected to the first rotating shaft 201 in the second conveying assembly, the small gear 801 is meshed with the large gear 802, and the motor 8 is fixedly connected to the first rotating shaft 201 in the first conveying assembly;

by electrifying the motor 8, the motor 8 drives the first rotating shaft 201 of the first conveying component to rotate, meanwhile, the pinion 801 on the first rotating shaft 201 of the first conveying component drives the gearwheel 802 on the first rotating shaft 201 of the second conveying component to rotate, the gearwheel 802 drives the first rotating shaft 201 of the second conveying component to rotate, and as the gearwheel 802 is arranged on the first rotating shaft 201 of the second conveying component, the rotating speed of the first rotating shaft 201 on the second conveying component is slower than that of the first rotating shaft 201 on the first conveying component, and simultaneously, the rotating directions of the first conveying component and the second conveying component are opposite, the paddy is put on the first conveying component and then moves forward to the moving direction of the first conveying component, and the first conveying belt 2 on the first conveying component and the first conveying belt 2 on the second conveying component reversely rotate to rub the paddy, so that the paddy hulls are separated from the paddy;

at the same time, the first conveying assembly rotates faster than the second conveying assembly, so that the first conveying assembly moves faster than the second conveying assembly, and the hulled rice and grains are conveyed to the moving direction of the first conveying assembly.

Example 3:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the conveying assembly comprises second rotating shafts 3 and second conveying belts 301, the second rotating shafts 3 are symmetrically and rotatably connected to the frame 10, the second conveying belts 301 are rotatably connected to the two groups of second rotating shafts 3, and the first belts 302 are connected with the first rotating shafts 201 and the second rotating shafts 3;

first pivot 201 on with first transmission component links to each other with second pivot 3 through first belt 302, will drive second pivot 3 when first pivot 201 rotates and rotate, and when the unhulled corn dropped to second transmission band 301 from first transmission component on, fan 104 blows the rice husk, then the rice grain drops on second transmission band 301, transports second transmission band 301 direction of advance.

Example 4:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the screening assembly comprises a bottom plate 4 and a fixing frame 403, the bottom plate 4 is fixedly connected to a frame 10, a second spring 4013 is fixedly connected to the fixing frame 403, one end, far away from the fixing frame 403, of the second spring 4013 is fixedly connected to the bottom plate 4, a third rotating shaft 401 is rotatably connected to the bottom plate 4, a second belt 9 is connected to the second rotating shaft 3 and the third rotating shaft 401, a rotating wheel 4011 is fixedly connected to the third rotating shaft 401, a connecting rod 4014 is rotatably connected to the rotating wheel 4011, a sliding rod 4015 is fixedly connected to the fixing frame 403, one end, far away from the rotating wheel 4011, of the connecting rod 4014 is rotatably connected to the sliding rod 4015, and a screening net 4016;

the second rotating shaft 3 and the third rotating shaft 401 are connected through a second belt 9, the second rotating shaft 3 drives the third rotating shaft 401 to rotate, the rotating wheel 4011 rotates on the third rotating shaft 401, the connecting rod 4014 is connected to the outermost edge of the rotating wheel 4011, the connecting rod 4014 can be pulled to reciprocate when the rotating wheel 4011 rotates, meanwhile, the connecting rod 4014 pulls the fixing frame 403 to reciprocate, the fixing frame 403 is connected with the bottom plate 4 through a second spring 4013, and the second spring 4013 can be stretched when the fixing frame 403 reciprocates;

the rice grains fall onto the screening net 4016 from the second conveying belt 301, the screening net 4016 is connected to the fixing frame 403, the rice grains can reciprocate on the screening net 4016 along with the fixing frame 403, small rice grains fall into the first collecting box 6 below the bottom plate 4 from holes in the screening net 4016, the middle of the bottom plate 4 is empty, and rice falls into the first collecting box 6 from the empty part;

because the screening net 4016 is obliquely arranged on the fixing frame 403, during the reciprocating motion, large rice grains can fall out of the screening net 4016 from the slotted opening 4031 on the fixing frame 403 along with the direction of the oblique direction and fall into the second collecting box 7 below; and through screening net 4016 sliding connection on mount 403, can change the screening net 4016 of different hole diameters according to the demand to the grain size of rice, and then improve the suitability.

Example 5:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the frame 10 is fixedly connected with a discharge box 1, and the rice hull collecting box 103 is placed on the frame 10;

the rice can be dropped into the discharging box 1 in batches through the discharging box 1, the rice can fall onto the first conveying belt 2 of the first conveying assembly from the outlet of the discharging box 1, the rice is prevented from being manually placed on the first conveying belt 2, and labor force and labor intensity are reduced;

meanwhile, the rice husk collecting box 103 is placed at the end point of the advancing direction of the conveying assembly and used for collecting the rice husks blown off by the fan 104, so that the rice husks can be collected conveniently.

Example 6:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: a fixed seat 203 is fixedly connected to the frame 10, a friction plate 2031 is fixedly connected to the fixed seat 203, and the friction plate 2031 is matched with the first transmission belt 2;

when rotating through first conveyer belt 2, rub mutually with friction disc 2031 and produce the heat, also make the heat of having on the first conveyer belt 2 simultaneously, when first conveyer belt 2 rubs corn, can dry corn, make the rice husk on the corn become drier more, make between rice husk and the grain reduce the viscosity of moisture sticky, be favorable to the rice husk to drop from the corn more.

Example 7:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the two groups of first rotating shafts 201 are rotatably connected with a fixing plate 202, the fixing plate 202 is fixedly connected with a first spring 2021, one end, far away from the fixing plate 202, of the first spring 2021 is fixedly connected with a fixing block 2022, one end, far away from the first spring 2021, of the fixing block 2022 is fixedly connected with a roller 2023, the roller 2023 is matched with the first transmission belt 2, the fixing block 2022 is fixedly connected with an expansion link 204, and one end, far away from the fixing block 2022, of the expansion link 204 is fixedly connected to the fixing plate 202;

the rice is rubbed on the first conveyer belt 2 to remove husk, so that the rice is attached to the first conveyer belt 2 more closely, and the paddy rice with different sizes can be better attached to the first transmission belt 2, and the effect can be achieved by utilizing the elasticity of the first spring 2021, meanwhile, in order to prevent the inertia of the movement of the first conveyor belt 2, the first spring 2021 is stretched to be twisted so that the attachment performance becomes poor, the telescopic rod 204 is used for guiding the fixing plate 202 and the fixing block 2022, so that the first spring 2021 is always in a vertical relation with the fixing plate 202, the rice is better attached to the first conveyor belt 2, the shelling effect is further improved, meanwhile, in order to prevent friction between the fixed block 2022 and the first belt 2, a roller 2023 is used, the fixing block 2022 can be prevented from rubbing against the first belt 2 by being attached to the first belt 2.

Example 8:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: a piston 5 is fixedly connected to the frame 10, a pushing block 502 is connected in the piston 5 in a sliding manner, the pushing block 502 is connected in the piston 5 in a sliding manner, a push rod 501 is connected to the pushing block 502 in a rotating manner, one end, far away from the pushing block 502, of the push rod 501 is connected to the fixing frame 403 in a rotating manner, an air inlet pipe 503 and an air outlet pipe 504 are fixedly connected to the piston 5, and one end, far away from the piston 5, of the air outlet pipe 504 is communicated;

when the fixing frame 403 reciprocates, the push rod 501 is driven to reciprocate, and the push rod 501 pulls the push block 502 to reciprocate in the piston 5;

all be equipped with the check valve on intake pipe 503 and the outlet duct 504, can be when push rod 501 pulling promotes piece 502, admit air in to piston 5 from intake pipe 503, push rod 501 promotes when promoting piece 502, promote the gas in the piece 502 extrusion piston 5, it is gaseous from outlet duct 504 entering into blowing case 1, it is gaseous to the corn in blowing case 1, further air-dry is carried out to corn, make the rice husk on the corn become drier more, make the glutinous of reduction moisture between rice husk and the rice grain, be favorable to more that the rice husk drops from corn in the shelling subassembly.

Example 9:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the two groups of rotating wheels 4011 are symmetrically arranged on the third rotating shaft 401, the rotating wheels 4011 are uniformly and fixedly connected with convex blocks 4012, and the convex blocks 4012 are matched with the fixing frame 403;

through the rotation of runner 4011, can make lug 4012 carry out the circular rotation on runner 4011, lug 4012 can carry out the jack-up of uniform velocity to mount 403, second spring 4013 is stretched simultaneously, mount 403 is by lug 4012 jack-up back, after lug 4012 kept away from mount 403, second spring 4013 can pull back mount 403, lug 4012 jack-up mount 403 that reciprocates can make mount 403 produce fore-and-aft reciprocating motion, make the rice grain on screen 4016 can the range of motion increase, make rice more be favorable to falling in the first collecting box 6 from the hole on screen 4016, and increase screening efficiency.

Example 10:

referring to fig. 1 to 11, an automatic rice husking and screening apparatus, substantially the same as in example 1, further comprising: the fixed frame 403 is fixedly connected with a ball seat 402, and the ball seat 402 is matched with the convex block 4012;

the balls rotating on the ball seat 402 are arranged on the ball seat 402, so that the friction between the convex block 4012 and the fixing frame 403 can be reduced, the abrasion between the convex block 4012 and the fixing frame 403 can be reduced, and the service lives of the convex block 4012 and the fixing frame 403 can be prolonged.

It should be noted that in this patent application, all the electrical components are connected to an external master controller and a 220V commercial power point, and the master controller may be a conventional known device for controlling a computer, and it should be noted that the motor 8 in the above embodiment may be, but is not limited to, an adjustable speed motor with a model number of Y200L 2-2.

The rice is rubbed by the two groups of first conveying belts 2 which rotate oppositely and at different speeds, so that the rice is hulled, and the screening net 4016 performs transverse reciprocating motion and longitudinal reciprocating motion, so that hulled rice grains are screened on the screening net 4016 in size.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. An automatic unhulling sieving mechanism of corn, includes frame (10), its characterized in that still includes:

a husking assembly connected to the frame (10) for husking rice;

the motor (8) is connected to the hulling assembly and is used for driving the hulling assembly to work;

the fan (104) is fixedly connected to the frame (10) and used for blowing off rice husks;

the transportation assembly is connected to the frame (10) and is used for transporting the hulled rice grains to the next process;

a first belt (302) for connecting the hulling assembly and the transport assembly;

the screening assembly is connected to the frame (10) and is used for screening the size of the hulled rice grains;

a second belt (9) for connecting the transport assembly and the screening assembly.

2. The automatic rice husking and screening apparatus as claimed in claim 1, the hulling assembly comprises a first conveying assembly and a second conveying assembly, the first conveying assembly and the second conveying assembly respectively comprise a first rotating shaft (201) and a first conveying belt (2), the first rotating shafts (201) are symmetrically and rotationally connected to the frame (10), the first transmission belts (2) are rotationally connected to the two groups of the first rotating shafts (201), the first conveying component and the second conveying component are in a vertical position relation, a pinion (801) is fixedly connected to a first rotating shaft (201) in the first conveying component, a large gear (802) is fixedly connected to a first rotating shaft (201) in the second transmission component, the small gear (801) and the large gear (802) are meshed, and the motor (8) is fixedly connected to a first rotating shaft (201) in the first transmission assembly.

3. The automatic rice husking and screening device of claim 1, wherein the conveying assembly comprises a second rotating shaft (3) and a second conveying belt (301), the second rotating shaft (3) is symmetrically and rotatably connected to the frame (10), the second conveying belt (301) is rotatably connected to two sets of the second rotating shafts (3), and the first belt (302) is connected to the first rotating shaft (201) and the second rotating shaft (3).

4. The automatic rice husking and screening device of claim 1, wherein the screening component comprises a bottom plate (4) and a fixing frame (403), the bottom plate (4) is fixedly connected to a frame (10), a second spring (4013) is fixedly connected to the fixing frame (403), one end, away from the fixing frame (403), of the second spring (4013) is fixedly connected to the bottom plate (4), a third rotating shaft (401) is rotatably connected to the bottom plate (4), a second belt (9) is connected to the second rotating shaft (3) and the third rotating shaft (401), a rotating wheel (4011) is fixedly connected to the third rotating shaft (401), a connecting rod (4014) is rotatably connected to the rotating wheel (4011), a sliding rod (4015) is fixedly connected to the fixing frame (403), one end, away from the rotating wheel (4011), of the connecting rod (4014) is rotatably connected to the sliding rod (4015), the fixed frame (403) is connected with a screening net (4016) in a sliding way.

5. An automatic rice husking and screening apparatus as claimed in claim 1, wherein a rice husk collecting box (103) is placed on the frame (10) and a discharging box (1) is fixedly connected to the frame (10).

6. An automatic rice husking and screening device according to claim 2, wherein a fixed seat (203) is fixedly connected to the frame (10), a friction plate (2031) is fixedly connected to the fixed seat (203), and the friction plate (2031) is matched with the first conveyor belt (2).

7. The automatic rice husking and screening device according to claim 2 or 6, wherein two sets of the first rotating shafts (201) are rotatably connected with a fixing plate (202), a first spring (2021) is fixedly connected to the fixing plate (202), a fixing block (2022) is fixedly connected to one end of the first spring (2021) far away from the fixing plate (202), a roller (2023) is fixedly connected to one end of the fixing block (2022) far away from the first spring (2021), the roller (2023) is matched with the first conveying belt (2), a telescopic rod (204) is fixedly connected to the fixing block (2022), and one end of the telescopic rod (204) far away from the fixing block (2022) is fixedly connected to the fixing plate (202).

8. The automatic rice husking and screening device according to claim 1, wherein a piston (5) is fixedly connected to the frame (10), a pushing block (502) is slidably connected to the piston (5), the pushing block (502) is slidably connected to the piston (5), a push rod (501) is rotatably connected to the pushing block (502), one end, away from the pushing block (502), of the push rod (501) is rotatably connected to a fixing frame (403), an air inlet pipe (503) and an air outlet pipe (504) are fixedly connected to the piston (5), and one end, away from the piston (5), of the air outlet pipe (504) leads to the inside of the discharging box (1).

9. The automatic rice husking and screening device of claim 4, wherein two sets of rotating wheels (4011) are symmetrically arranged on a third rotating shaft (401), a convex block (4012) is uniformly and fixedly connected to the rotating wheels (4011), and the convex block (4012) is matched with a fixed frame (403).

10. The automatic rice husking and screening device of claim 9, wherein a ball seat (402) is fixedly connected to the fixing frame (403), and the ball seat (402) is matched with the bump (4012).