CN112156976A

CN112156976A - Classified screening device for rice processing

Info

Publication number: CN112156976A
Application number: CN202011105527.2A
Authority: CN
Inventors: 桂瑶瑶
Original assignee: 桂瑶瑶
Current assignee: HUNAN TIANTIANLAI RICE INDUSTRY Co.,Ltd.
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-01-01
Anticipated expiration: 2040-10-15
Also published as: CN112156976B

Abstract

The invention discloses a grading and screening device for rice processing, which relates to the field of screening mechanisms and comprises a fixed base, wherein two vertical plates are welded at the top of the fixed base; according to the rice screening machine, the material distributing rollers are arranged in the first screening machine and the second screening machine, so that rice is quantitatively screened, the full-load operation of the screening machines is prevented, the service life of the screening machines is prolonged, and meanwhile, when the rice screening machine is used, the brush can move along the surface of the filtering net all the time through the washing mechanism arranged in the screening bin, so that the filtering holes are prevented from being blocked, and the screening efficiency is ensured.

Description

Classified screening device for rice processing

Technical Field

The invention relates to the field of screening mechanisms, in particular to a grading and screening device for rice processing.

Background

The process of removing rice husk and bran layer. The rice grain consists of husk, cortex, embryo and endosperm. The purpose of rice processing is to separate the endosperm from other parts with a minimum degree of fragmentation to produce rice of good quality for consumption, which must be screened for distribution on the market.

Present rice is when screening, all is the intussuseption rice toward the screening machine constantly for always being full of in the screening machine, increase the burden of screening machine, simultaneously, excessive rice causes the jam of filter screen easily, if can not dredge it in time, will influence the screening effect of rice.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide the grading and screening device for rice processing, and the grading and screening device for rice processing realizes quantitative screening of rice by arranging the material distributing rollers in the first screening machine and the second screening machine, prevents the screening machines from operating at full load and prolongs the service life of the screening machines;

meanwhile, when the screening device is used, the brush can move along the surface of the filter screen all the time by arranging the washing mechanism in the screening bin, so that the filter holes are prevented from being blocked, and the screening efficiency is ensured.

The purpose of the invention can be realized by the following technical scheme:

a classified screening device for rice processing comprises a fixing base, wherein two vertical plates are welded at the top of the fixing base, a first screening machine is arranged at the top between the two vertical plates, a second screening machine is arranged at the bottom of the first screening machine, vibrating motors are arranged on the surfaces of the rear ends of the first screening machine and the second screening machine, a feeding hole is fixedly connected at the top of the first screening machine, a first discharging hole is fixedly connected to the side wall of the first screening machine, a filtering channel is welded at the bottom of the first screening machine, the second screening machine is connected with the first screening machine through the filtering channel, a second discharging hole is fixedly connected to the side wall of the second screening machine, and a discharging hole is welded at the bottom of the second screening machine;

a first bracket is arranged on the side wall of the vertical plate and at the bottom of the first discharge port, a first material collecting box is arranged on the surface of the first bracket and is positioned right below the first discharge port, a second bracket is arranged on the side wall of the vertical plate and at the bottom of the second discharge port, a second material collecting box is arranged on the surface of the second bracket and is positioned right below the second discharge port, a material collecting box is arranged on the surface of the fixed base and is positioned right below the discharge port;

the inner cavities of the first screening machine and the second screening machine are respectively and rotatably connected with a material distributing roller, a rotating shaft is arranged in the center of the surface of each material distributing roller, the material distributing rollers are respectively and rotatably connected with the first screening machine and the second screening machine through the rotating shafts, a rotating mechanism is arranged on the surface of each vertical plate and drives the two material distributing rollers to synchronously move, screening bins are arranged on the surfaces of the material distributing rollers in a mirror image mode, washing mechanisms are arranged on the two inner side walls of each screening bin, driving mechanisms are arranged at the rear ends of the washing mechanisms and in the material distributing rollers and drive the washing mechanisms to reciprocate;

the bottom of first screening machine is provided with first filter screen, and the bottom of second screening machine is provided with the second filter screen, and the aperture of first filter screen is greater than the aperture of second filter screen.

Further, slewing mechanism includes step motor, and step motor is fixed in the surface of riser, and step motor's output is connected with the pivot on second screening machine surface, and the pivot cover on second screening machine surface is equipped with the drive roll, and the pivot cover on first screening machine surface is equipped with the driven voller, and the surface cover of drive roll and driven voller is equipped with driving belt.

Further, the washing mechanism includes the actuating lever, and the rear end of actuating lever stretches into in the branch material roller and is connected with actuating mechanism, and the front end of actuating lever articulates there is the movable rod, and the articulated department of actuating lever and movable rod is provided with canceling release mechanical system, and the one end welding that the actuating lever was kept away from to the movable rod has the fixed plate, and the bottom of fixed plate is provided with the brush.

Further, the top welding of brush has the stopper, and the stopper is "T" shape, and the stopper is embedded in the fixed plate, and the brush passes through stopper and fixed plate swing joint.

Further, canceling release mechanical system includes first fixed block, and first fixed block welds in the surface of actuating lever, and the skin weld of movable rod has the second fixed block, is provided with the elastic component between first fixed block and the second fixed block.

Further, actuating mechanism includes the cam, and the lateral wall of cam is provided with driving motor, and the rear end fixedly connected with connecting plate of actuating lever, the top welding of connecting plate has the lug, and the lateral wall of cam is connected with the lug.

The invention has the beneficial effects that:

1. according to the rice screening machine, the material distributing rollers are arranged in the first screening machine and the second screening machine, so that the rice is quantitatively screened, the full-load operation of the screening machines is prevented, and the service life of the screening machines is prolonged;

2. when the screening device is used, the brush can move along the surface of the filter screen all the time by arranging the washing mechanism in the screening bin, so that filter holes are prevented from being blocked, and screening efficiency is ensured.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the drive mechanism of the present invention;

fig. 3 is a schematic view of the internal structures of the first sieving machine and the second sieving machine;

FIG. 4 is a schematic view of the construction of the distributing roller of the present invention;

fig. 5 is a schematic structural view of the washing mechanism of the present invention.

In the figure: 1. a fixed base; 2. a vertical plate; 3. a first screening machine; 31. a first filter screen; 4. a second screening machine; 41. a second filter screen; 5. a feed inlet; 6. a first discharge port; 7. a filtration channel; 8. a second discharge port; 9. a feeding port; 10. a first bracket; 11. a first material collecting box; 12. a second bracket; 13. a second material collecting box; 14. a material receiving box; 15. a material distributing roller; 151. screening the bin; 16. a washing mechanism; 161. a drive rod; 162. a movable rod; 163. a fixing plate; 164. a brush; 165. a limiting block; 166. a connecting plate; 167. a bump; 168. a reset mechanism; 1681. a first fixed block; 1682. a second fixed block; 1683. an elastic member; 17. a drive mechanism; 171. a cam; 172. a drive motor; 18. a rotating mechanism; 181. a stepping motor; 182. a drive roll; 183. a driven roller; 184. a drive belt.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The utility model provides a rice processing is with hierarchical sieving mechanism, as shown in fig. 1 and 2, including unable adjustment base 1, two risers 2 of fixed base 1's top welding, top between two risers 2 is provided with first screening machine 3, the bottom of first screening machine 3 is provided with second screening machine 4, and the rear end surface of first screening machine 3 and second screening machine 4 all is provided with vibrating motor, the top fixedly connected with feed inlet 5 of first screening machine 3, the first discharge gate 6 of lateral wall fixedly connected with of first screening machine 3, the bottom welding of first screening machine 3 has filtration passageway 7, and second screening machine 4 is connected with first screening machine 3 through filtration passageway 7, the lateral wall fixedly connected with second discharge gate 8 of second screening machine 4, the bottom welding of second screening machine 4 has feed opening 9.

The side wall of the vertical plate 2 and the bottom of the first discharge hole 6 are provided with a first bracket 10, the surface of the first bracket 10 is provided with a first material collecting box 11, the first material collecting box 11 is positioned under the first discharge hole 6, the side wall of the vertical plate 2 and the bottom of the second discharge hole 8 are provided with a second bracket 12, the surface of the second bracket 12 is provided with a second material collecting box 13, the second material collecting box 13 is positioned under the second discharge hole 8, the surface of the fixing base 1 is provided with a material collecting box 14, and the material collecting box 14 is positioned under the discharge hole 9.

As shown in fig. 3, the bottom of first screening machine 3 is provided with first filter screen 31, the bottom of second screening machine 4 is provided with second filter screen 41, and the aperture of first filter screen 31 is greater than the aperture of second filter screen 41, first screening machine 3 is used for filtering the impurity in the rice, impurity discharges from first discharge gate 6, rice after the filtration gets into in second screening machine 4, after filtering, tiny particles such as the broken rice that mix in the rice discharge from feed opening 9, the rice is discharged from second discharge gate 8.

As shown in fig. 2 and 3, the inner cavities of the first screening machine 3 and the second screening machine 4 are rotatably connected with a material distribution roller 15, a rotating shaft is arranged at the center of the surface of the material distribution roller 15, the material distribution roller 15 is rotatably connected with the first screening machine 3 and the second screening machine 4 through the rotating shaft, a rotating mechanism 18 is arranged on the surface of the vertical plate 2, the rotating mechanism 18 drives the two material distribution rollers 15 to synchronously move, so that the screening bins 151 in the upper and lower material distribution rollers 15 are kept aligned, the screening bins 151 are arranged on the surface of the material distribution roller 15 in a mirror image manner, rice enters the screening bins 151 from the feeding port 5, after the screening bins 151 are filled, the material distribution roller 15 rotates to rotate, the screening bin 151 at the bottom is rotated to the top, the screening bin 151 containing the rice is rotated to the bottom for filtering, the washing mechanisms 16 are arranged on the two inner side walls of the screening bins 151, the driving mechanisms 17 are arranged at the rear ends of the washing mechanisms 16, the driving mechanism 17 drives the washing mechanism 16 to do reciprocating motion, and the washing mechanism 16 washes the surface of the filter screen, so that the filter holes are prevented from being blocked, and the screening efficiency is ensured.

As shown in fig. 2, the rotating mechanism 18 includes a stepping motor 181, the stepping motor 181 is fixed on the surface of the vertical plate 2, the output end of the stepping motor 181 is connected to the rotating shaft on the surface of the second screening machine 4, a driving roller 182 is sleeved on the rotating shaft on the surface of the second screening machine 4, a driven roller 183 is sleeved on the rotating shaft on the surface of the first screening machine 3, and a transmission belt 184 is sleeved on the surfaces of the driving roller 182 and the driven roller 183.

As shown in fig. 4 and 5, the washing mechanism 16 includes a driving rod 161, a rear end of the driving rod 161 extends into the material distribution roller 15 and is connected to the driving mechanism 17, a movable rod 162 is hinged to a front end of the driving rod 161, a reset mechanism 168 is disposed at a hinge position of the driving rod 161 and the movable rod 162, a fixed plate 163 is welded at one end of the movable rod 162 far away from the driving rod 161, a brush 164 is disposed at a bottom of the fixed plate 163, the driving rod 161 makes a linear motion, when the driving rod 161 moves outwards, the brush 164 is pushed by the movable rod 162 to move, and the brush 164 deflects when moving along the surface of the filter screen, and after the movable rod 162 deflects, the reset mechanism 168 is squeezed, so that the brush 164 can be tightly attached to the surface of the filter screen all.

The top welding of brush 164 has stopper 165, and stopper 165 is "T" shape, and stopper 165 is embedded in fixed plate 163, and brush 164 passes through stopper 165 and fixed plate 163 swing joint.

As shown in fig. 5, the reset mechanism 168 includes a first fixed block 1681, the first fixed block 1681 is welded to the surface of the driving rod 161, a second fixed block 1682 is welded to the surface of the movable rod 162, and an elastic member 1683 is disposed between the first fixed block 1681 and the second fixed block 1682.

As shown in fig. 5, the driving mechanism 17 includes a cam 171, a driving motor 172 is disposed on a side wall of the cam 171, a connecting plate 166 is fixedly connected to a rear end of the driving rod 161, a protrusion 167 is welded to a top of the connecting plate 166, and a side wall of the cam 171 is connected to the protrusion 167.

When the rice screening machine is used, rice enters a screening bin 151 in a first screening machine 3 through a feeding hole 5, after the rice is filled, a stepping motor 181 is started, under the matching between a driving roller 182 and a driven roller 183, a material distribution roller 15 rotates 180 degrees, the screening bin 151 filled with the rice rotates to the bottom, a vibration motor drives the first screening machine 3 to vibrate, meanwhile, a driving motor 172 is started, the driving motor 172 drives a cam 171 to rotate, the cam 171 pushes a driving rod 161 to do linear motion, the driving rod 161 passes through a movable rod 162, a brush 164 slides along a filtering net, when the brush 164 deflects, the elastic piece 1683 is extruded, the brush 164 is made to be always attached to the surface of the filtering net, after the rice is filtered by the first filtering net 31, the rice enters a second screening machine 4 along a filtering channel 7, the stepping motor 181 is started again, and the first screening machine 3 is started, the material distributing roller 15 rotates and pushes impurities at the bottom to be discharged from the first discharge hole 6, and in the second screening machine 4, through the rotation of the material distributing roller 15, the screening bin 151 containing rice rotates to the bottom to further screen the rice, tiny particles such as broken rice in the rice are discharged along the discharge hole 9, the rice is pushed by the material distributing roller 15 to be discharged from the second discharge hole 8, and the operation is repeated in a circulating mode.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The classified screening device for rice processing comprises a fixed base (1) and is characterized in that two vertical plates (2) are welded at the top of the fixed base (1), a first screening machine (3) is arranged at the top between the two vertical plates (2), a second screening machine (4) is arranged at the bottom of the first screening machine (3), vibrating motors are arranged on the surfaces of the rear ends of the first screening machine (3) and the second screening machine (4), a feeding hole (5) is fixedly connected at the top of the first screening machine (3), a first discharging hole (6) is fixedly connected with the side wall of the first screening machine (3), a filtering channel (7) is welded at the bottom of the first screening machine (3), the second screening machine (4) is connected with the first screening machine (3) through the filtering channel (7), and a second discharging hole (8) is fixedly connected with the side wall of the second screening machine (4), a feed opening (9) is welded at the bottom of the second sieving machine (4);

a first bracket (10) is arranged on the side wall of the vertical plate (2) and at the bottom of the first discharge hole (6), a first material collecting box (11) is arranged on the surface of the first bracket (10), the first material collecting box (11) is positioned under the first discharge hole (6), a second bracket (12) is arranged on the side wall of the vertical plate (2) and at the bottom of the second discharge hole (8), a second material collecting box (13) is arranged on the surface of the second bracket (12), the second material collecting box (13) is positioned under the second discharge hole (8), a material collecting box (14) is arranged on the surface of the fixed base (1), and the material collecting box (14) is positioned under the discharge hole (9);

the inner cavities of the first screening machine (3) and the second screening machine (4) are rotatably connected with a material distribution roller (15), a rotating shaft is arranged at the center of the surface of the material distribution roller (15), the material distribution roller (15) is rotatably connected with the first screening machine (3) and the second screening machine (4) through the rotating shaft respectively, a rotating mechanism (18) is arranged on the surface of the vertical plate (2), the rotating mechanism (18) drives the two material distribution rollers (15) to move synchronously, a screening bin (151) is formed in the surface of the material distribution roller (15) in a mirror image mode, washing mechanisms (16) are arranged on the two inner side walls of the screening bin (151), a driving mechanism (17) is arranged in the material distribution roller (15) and at the rear end of the washing mechanism (16), and the driving mechanism (17) drives the washing mechanism (16) to move in a reciprocating mode;

the bottom of first screening machine (3) is provided with first filter screen (31), and the bottom of second screening machine (4) is provided with second filter screen (41), and the aperture of first filter screen (31) is greater than the aperture of second filter screen (41).

2. The classifying and screening device for rice processing according to claim 1, wherein the rotating mechanism (18) comprises a stepping motor (181), the stepping motor (181) is fixed on the surface of the vertical plate (2), the output end of the stepping motor (181) is connected with the rotating shaft on the surface of the second screening machine (4), the rotating shaft on the surface of the second screening machine (4) is sleeved with a driving roller (182), the rotating shaft on the surface of the first screening machine (3) is sleeved with a driven roller (183), and the surfaces of the driving roller (182) and the driven roller (183) are sleeved with a transmission belt (184).

3. The rice processing classifying and screening device according to claim 1, wherein the washing mechanism (16) comprises a driving rod (161), the rear end of the driving rod (161) extends into the distributing roller (15) and is connected with the driving mechanism (17), the front end of the driving rod (161) is hinged with a movable rod (162), a reset mechanism (168) is arranged at the hinged position of the driving rod (161) and the movable rod (162), a fixed plate (163) is welded at one end of the movable rod (162) far away from the driving rod (161), and a brush (164) is arranged at the bottom of the fixed plate (163).

4. The classifying and screening device for rice processing as claimed in claim 3, wherein a limiting block (165) is welded on the top of the brush (164), the limiting block (165) is T-shaped, the limiting block (165) is embedded in the fixing plate (163), and the brush (164) is movably connected with the fixing plate (163) through the limiting block (165).

5. The rice processing classifying and screening device according to claim 3, wherein the reset mechanism (168) comprises a first fixed block (1681), the first fixed block (1681) is welded on the surface of the driving rod (161), a second fixed block (1682) is welded on the surface of the movable rod (162), and an elastic member (1683) is arranged between the first fixed block (1681) and the second fixed block (1682).

6. The rice processing classifying and screening device according to claim 3, wherein the driving mechanism (17) comprises a cam (171), a driving motor (172) is arranged on a side wall of the cam (171), a connecting plate (166) is fixedly connected to a rear end of the driving rod (161), a bump (167) is welded on the top of the connecting plate (166), and the side wall of the cam (171) is connected with the bump (167).