CN116422398A - Germ rice milling device and method with high germ retention rate - Google Patents
Germ rice milling device and method with high germ retention rate Download PDFInfo
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- CN116422398A CN116422398A CN202310508390.2A CN202310508390A CN116422398A CN 116422398 A CN116422398 A CN 116422398A CN 202310508390 A CN202310508390 A CN 202310508390A CN 116422398 A CN116422398 A CN 116422398A
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- rice
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- shell
- rice milling
- conveyor belt
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 158
- 235000009566 rice Nutrition 0.000 title claims abstract description 158
- 238000003801 milling Methods 0.000 title claims abstract description 49
- 230000014759 maintenance of location Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 5
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 241000209094 Oryza Species 0.000 claims description 156
- 239000000428 dust Substances 0.000 claims description 12
- 239000010903 husk Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 244000052616 bacterial pathogen Species 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 210000001161 mammalian embryo Anatomy 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 101001040924 Arabidopsis thaliana Auxin-responsive protein IAA3 Proteins 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
- B02B3/045—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers cooperating rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Adjustment And Processing Of Grains (AREA)
Abstract
The invention discloses a germ rice milling device with high germ retention rate and a method thereof, comprising a hopper, a shell, a conveyor belt, a conveying mechanism, a rotating speed adjusting mechanism and a filtering mechanism, wherein a second baffle is arranged below the hopper, a crankshaft is arranged below the second baffle, and the conveying mechanism is arranged below the second baffle and is matched with the conveyor belt to finish conveying work; the outer wall of the shell is provided with a third belt pulley and a fourth belt pulley, the rotating speed adjusting mechanism is arranged on the outer wall of the shell, and the third belt pulley and the fourth belt pulley are matched to finish the adjustment work; through holes are formed in the outer walls of the two sides of the shell, a filter screen is arranged in the shell, a double-shaft motor is arranged below the filter screen, eccentric wheels are arranged on output shafts at the two ends of the double-shaft motor, the filter mechanism is arranged on the inner wall of the shell, and the double-shaft motor and the eccentric wheels are matched to finish the filtering operation.
Description
Technical Field
The invention relates to the technical field of food processing, in particular to a germ rice milling device and method with high germ retention rate.
Background
The basic nutrition components of the rice are concentrated in the embryo, the weight of the embryo accounts for about 2.5-3% of that of the rice, but the embryo retains 60-80% of that of the rice, and the embryo is a nutritional repository. The existing rice processing mainly comprises deep processing, uneven sources of raw material varieties and heavy deep polishing during processing, so that rice grains become crystal clear, but because germ tissues are loose, germs and radicle are connected together through a very short hypocotyl, the germs are positioned at the lower end of the abdomen of the rice, and the connection of the germs and the endosperm is not firm, the existing equipment can not adjust the feeding direction and the conveying amount by directly conveying, the germs are easy to fall off due to rolling, and doped broken rice and rice bran cannot be thoroughly filtered in time after rolling.
Disclosure of Invention
The invention aims to provide a germ rice milling device and method with high germ retention rate, which can better protect rice germs in the rice milling process, thoroughly strip rice and reduce broken rice.
In order to achieve the above purpose, the present invention provides the following technical solutions: the germ rice milling device with the high germ retention rate comprises a shell, wherein a conveying mechanism is obliquely arranged in the shell, the conveying mechanism comprises a conveyor belt, a hopper is fixed on the shell and is positioned right above the bottom end of the conveyor belt, and a second baffle plate capable of continuously opening and closing along with upward feeding of the conveyor belt is hinged to the bottom of the hopper;
a third baffle plate for guiding the fallen rice is arranged between the opening end of the second baffle plate and the bottom end of the conveyor belt;
a brush for spreading rice on the surface of the conveyor belt is arranged above the conveyor belt and is fixed on the inner wall of the shell;
a two-stage rice milling mechanism is arranged below the blanking end of the conveyor belt, the first-stage rice milling mechanism tears the hard outer shell on the surface of the rice by increasing the friction force on the surface of the rice, and the second-stage rice milling mechanism extrudes germ rice from the rice husk by extrusion;
a filtering mechanism is arranged right below the two-stage rice milling mechanism, and separation of germ rice and broken rice is realized through vibration of the filtering mechanism;
a dust remover is arranged above the filtering mechanism and is used for sucking out rice husks in germ rice and dust generated by rice milling;
a discharging slide way is obliquely arranged below the blanking end of the filtering mechanism, the discharging slide way is fixed on the inner wall of the shell, and the bottom end of the discharging slide way extends out from the side wall of the shell.
Preferably, a plurality of convex strips are transversely and equally spaced on the surface of the conveyor belt.
Preferably, the first-stage rice milling mechanism comprises a first press roller and a second press roller with the same rotation speed and different rotation directions, and the rotation speed of the second press roller is greater than that of the first press roller, so that the friction force born by the rice when passing between the first press roller and the second press roller is increased.
Preferably, the second stage rice milling mechanism comprises a third press roller and a fourth press roller which are opposite to each other and have the same rotating speed, so that the rice is extruded from the rice husk by extrusion when passing between the third press roller and the fourth press roller.
Preferably, the filtering mechanism comprises a vibrating frame, a filter screen is obliquely fixed on the vibrating frame, one side of the filter screen, which is close to the conveyor belt, is higher than the other side of the filter screen, and the other two sides of the conveyor belt are attached to the inner wall of the shell.
Preferably, the lower part of the filter screen and the vibration frame enclose a broken rice cavity, and the bottom wall of the broken rice cavity is obliquely arranged and is higher than the other side close to one side of the conveying belt.
Preferably, through holes are horizontally formed in two sides of the shell, support blocks which are horizontally arranged are fixed on two sides of the vibration frame, the support blocks are located in the through holes and can move up and down, a plurality of first springs which are uniformly and horizontally arranged are fixedly mounted on the lower end faces of the support blocks, and a plurality of first springs are fixedly mounted on through holes in the outer walls of two sides of the shell.
Preferably, the lower end face of the vibration frame is fixedly provided with two symmetrical second springs and a first round rod, the first round rod is positioned inside the second springs, the lower end face of the second springs is fixedly provided with a baffle plate, two sides of the baffle plate are fixed on the inner wall of the shell, and the lower end face of the first round rod penetrates through the baffle plate and is in sliding connection with the baffle plate.
Preferably, a double-shaft motor is arranged below the vibration frame, and eccentric wheels are arranged on output shafts at two ends of the double-shaft motor.
A germ rice milling method with high germ retention rate comprises the following steps:
step one: pouring the rice into the feed hopper, and then starting the conveyor belt, wherein the second baffle can be continuously opened and closed while the conveyor belt moves, so that the rice in the hopper can fall onto the surface of the conveyor belt along the third baffle, and the rice can be smoothed on the surface of the conveyor belt when passing through the hairbrush;
step two: the rice falls into a two-stage rice milling mechanism from a conveyor belt, the hard outer shell on the surface of the rice is torn by the first-stage rice milling mechanism, and germ rice is extruded from the rice husk by the second-stage rice milling mechanism;
step three: the rice is peeled twice and enters into the upper part of the vibration frame, the vibration frame vibrates to screen broken rice into a broken rice cavity and slides into the broken rice collecting box, the rice husk and dust generated by rice milling are sucked out through the dust remover, germ rice is shaken off to the discharging slideway and discharged from the discharging port, after all the rice is finished, the door is opened to draw out the broken rice collecting box, and then the device is cleaned.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the second baffle plate which moves simultaneously with the conveying belt of the conveying mechanism is arranged, so that the rice is uniformly discharged onto the conveying belt through the grooves on the third baffle plate, the rice is transversely arranged in the convex strips due to the convex strips on the conveying belt, and then the brush can smooth the convex strips again, so that the rice can transversely enter and roll, and the germ is arranged at two ends of the rice, so that the germ can be better protected from rolling, and the phenomenon of repeated blocking and grinding to cause broken rice is avoided.
2. According to the rice husking machine, the two-stage rice husking mechanism is arranged, so that the rice husking and peeling work can be realized;
at the same time, broken rice can be prevented from being produced, and germs can be reserved.
3. According to the invention, the filtering mechanism is arranged, so that the separation of germ rice, rice bran and broken rice can be realized, and the whole device can be cleaned after the separation is finished.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic view of the structure of FIG. 1 from another view;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a cross-sectional view of the present invention;
FIG. 6 is a schematic illustration of the present invention with the housing removed;
FIG. 7 is a schematic diagram of a conveying structure according to the present invention;
FIG. 8 is a schematic diagram of a filtration mechanism of the present invention;
FIG. 9 is a schematic diagram of a rotational speed adjustment mechanism according to the present invention;
fig. 10 is a schematic view of a conveyor belt according to the present invention.
In the figure: 1. a hopper; 2. a first pulley; 3. a first belt; 4. a second pulley; 5. a first servo motor; 6. support legs; 7. a control panel; 8. a housing; 9. a dust remover; 10. a second servo motor; 11. a discharge port; 12. a door; 13. a first spring; 14. a third pulley; 15. a second belt; 16. a fourth pulley; 17. a third belt; 18. a fifth pulley; 19. a first gear; 20. a second gear; 21. a discharging slideway; 22. a second spring; 23. a first round bar; 24. an eccentric wheel; 25. a biaxial motor; 26. a second round bar; 27. a conveyor belt; 28. a third round bar; 29. a fourth round bar; 30. a fifth round bar; 31. a second baffle; 32. a connecting block; 33. a connecting rod; 34. a crankshaft; 35. a groove; 36. a third baffle; 37. a filter screen; 38. a partition plate; 39. a support block; 40. a first press roller; 41. a second press roller; 42. a third press roller; 43. a fourth press roller; 44. a fourth baffle; 45. a fifth baffle; 46. a sixth baffle; 47. a convex strip; 48. a brush; 49. a vibration frame; 50. and a broken rice collecting box.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution: a germ rice milling device with high germ retention rate comprises a hopper 1, a shell 8, a conveying mechanism, a two-stage rice milling mechanism and a filtering mechanism.
In this embodiment, a second baffle plate 31 is installed below the hopper 1, a crankshaft 34 is installed below the second baffle plate 31, and the conveying mechanism is disposed below the second baffle plate 31, and completes the conveying work through the cooperation of the crankshaft 34 and the conveyor belt 27; the conveying mechanism comprises a first servo motor 5, the lower end face of the first servo motor 5 is arranged on the outer wall of a shell 8, an output shaft of the first servo motor 5 is rotatably connected with the shell 8, the output shaft of the first servo motor 5 penetrates through the shell 8 and is fixedly provided with a fifth round rod 30, a conveying belt 27 is sleeved outside the fifth round rod 30, a fourth round rod 29 is rotatably arranged in the middle position of the conveying belt 27, a second round rod 26 is rotatably arranged in the other end of the conveying belt 27, both ends of the fourth round rod 29 and the second round rod 26 are rotatably arranged on the inner wall of the shell 8, a second belt pulley 4 is fixedly sleeved on the outer wall of the second belt pulley 4 towards one end of the first servo motor 5, a first belt pulley 3 is fixedly sleeved on the other end of the first belt pulley 3, the first belt pulley 2 is rotatably connected with the shell 8, a crankshaft 34 is fixedly arranged in the center position of the first belt pulley 2, a connecting rod 33 is rotatably arranged in the middle of the crankshaft 34, the other end of the connecting rod 33 is rotatably provided with a connecting block 32, the other end of the connecting block 32 is fixedly arranged on the lower end face of the second baffle 31, the fourth round rod 31 is fixedly sleeved towards one side of the third round rod 29, and the inner wall of the third round rod 28 is rotatably arranged on the inner wall of the shell 28; the lower end surface of the hopper 1 is fixedly arranged on the shell 8, a hairbrush 48 is arranged on the inner wall of the shell 8 and positioned below the hopper 1, a third baffle 36 is arranged on the outer wall of one side of the shell 8 facing the hopper 1, and a groove 35 is formed in the upper end of the inner wall of the third baffle 36; the surface of the conveyor belt 27 is provided with raised strips 47; the second pulley 4 is twice as large as the first pulley 2.
In this embodiment, the outer wall of the housing 8 is provided with a third belt pulley 14 and a fourth belt pulley 16, the two-stage rice milling mechanism is disposed on the outer wall of the housing 8, and the first-stage rice milling mechanism completes the adjustment work through the cooperation between the third belt pulley 14 and the fourth belt pulley 16; the first-stage rice milling mechanism comprises a second servo motor 10, an output shaft of the second servo motor 10 is rotationally connected with a shell 8, a second press roller 41 is fixedly arranged on the output shaft of the second servo motor 10 penetrating through the shell 8, a fourth belt pulley 16 is fixedly arranged at the other end of the second press roller 41, a second belt 15 and a third belt 17 are respectively sleeved outside the fourth belt pulley 16, a third belt pulley 14 is sleeved inside the other end of the second belt 15, the third belt pulley 14 is rotationally connected with the shell 8, a first press roller 40 is fixedly arranged on the center position penetrating through the shell 8, and friction lines are arranged on the surfaces of the first press roller 40 and the second press roller 41; the second-stage rice milling mechanism comprises a fifth belt pulley 18, a fifth belt pulley 18 is sleeved in the other end of the third belt 17, the fifth belt pulley 18 is rotatably connected with the shell 8, a fourth press roller 43 is fixedly arranged at the center position penetrating through the shell 8, a first gear 19 is fixedly arranged on the outer wall of the fifth belt pulley 18, a second gear 20 is meshed with one side of the first gear 19, the second gear 20 is rotatably connected with the shell 8, and a third press roller 42 is fixedly arranged at the center position penetrating through the shell 8; the third pulley 14 is twice as large as the fourth pulley 16; the fourth pulley 16 is the same size as the fifth pulley 18, and the first gear 19 is the same size as the second gear 20; a fourth baffle 44 is arranged on the inner wall of the shell 8 and is positioned above the first press roller 40, and a fifth baffle 45 is arranged on the inner wall of the shell 8 and is positioned below the first press roller 40;
in this embodiment, through holes are formed on the outer walls of the two sides of the housing 8, a vibration frame 49 is installed inside the housing 8, a double-shaft motor 25 is installed below the vibration frame 49, eccentric wheels 24 are installed on output shafts of the two ends of the double-shaft motor 25, the filter mechanism is arranged on the inner wall of the housing 8, and the filtering work is completed through the cooperation of the double-shaft motor 25 and the eccentric wheels 24; the filtering mechanism comprises a vibration frame 49, a filter screen 37 is obliquely fixed on the vibration frame 49, one side of the filter screen 37 close to the conveyor belt 27 is higher than the other side, and the other two sides of the conveyor belt 27 are attached to the inner wall of the shell 8. Support blocks 39 are symmetrically arranged on the outer walls of the two sides of the vibration frame 49, a plurality of first springs 13 which are uniformly and horizontally arranged are fixedly arranged on the lower end face of the support blocks 39, the lower end faces of the first springs 13 are fixedly arranged on through holes of the outer walls of the two sides of the shell 8, a sixth baffle 46 is arranged on the outer wall of one side of the vibration frame 49, two symmetrical second springs 22 and first round rods 23 are fixedly arranged on the lower end face of the vibration frame 49, the first round rods 23 are positioned in the second springs 22, a partition 38 is fixedly arranged on the lower end faces of the second springs 22, and the lower end faces of the first round rods 23 penetrate through the partition 38 and are in sliding connection with the partition 38; the lower end face of the shell 8 is provided with a plurality of supporting legs 6, the outer wall of one side of the shell 8 is hinged with a door 12, the inner side of the door 12 is provided with a broken rice collecting box 50, the outer wall of the shell 8 is provided with a control panel 7, the outer wall of the shell 8 is provided with a dust remover 9, and the upper end of the dust remover 9 penetrates through the shell 8 to be fixedly arranged on the inner wall of the shell 8 and is positioned above a vibration frame 49; a discharge slideway 21 is arranged on the inner wall of the shell 8 and positioned below the vibration frame 49, and one side of the discharge slideway 21 penetrates through the shell 8 through a discharge hole 11 formed in the shell 8;
a germ rice milling method with high germ retention rate comprises the following steps:
step one: the paddy is poured into the feed hopper 1, the first servo motor 5 rotates clockwise, the first servo motor 5 drives the fifth round rod 30 to rotate, the fifth round rod 30 drives the conveyor belt 27 to rotate, meanwhile, the first servo motor 5 drives the second belt pulley 4 to rotate, the second belt pulley 4 drives the first belt pulley 2 to rotate through the first belt pulley 3, the first belt pulley 2 drives the crankshaft 34 to rotate, the crankshaft 34 drives the connecting rod 33 to move up and down, the connecting rod 33 drives the second baffle 31 to swing up and down around the third round rod 28 through the connecting block 32, the paddy is uniformly discharged onto the conveyor belt 27 through the groove 35 on the third baffle 36, the swing frequency of the second baffle 31 is faster because the size of the second belt pulley 4 is twice as large as that of the first belt pulley 2, a small amount of paddy uniformly enters the conveyor belt 27, the paddy is transversely arranged in the convex strips 47 on the conveyor belt 27, then the brush 48 can transversely enter and roll the paddy again, and the germs can be better protected from being blocked by rolling and not to cause the repeated grinding of the broken paddy because of two ends of the paddy.
Step two: the second servo motor 10 rotates clockwise, the second servo motor 10 drives the second press roller 41 to rotate, the second press roller 41 drives the fourth belt pulley 16 to rotate, the fourth belt pulley 16 drives the third belt pulley 14 to rotate through the second belt 15, the third belt pulley 14 drives the first press roller 40 to rotate, the first press roller 40 is consistent with the second press roller 41 in rotation direction, and the fourth belt pulley 16 and the third belt pulley 14 are different in size, so that the speed of the second press roller 41 is faster than that of the first press roller 40, friction force applied to rice when the rice passes between the first press roller 40 and the second press roller 41 is increased, and the surface skin of the rice is easier to tear. Since the rice enters laterally and the second press roller 41 has friction lines with the surface of the first press roller 40, the friction force applied to the rice is further increased and the rice germ is not damaged. The fourth baffle 44 prevents the rice from jumping out, the first peeled rice moves downwards along the fifth baffle 45, the fourth belt pulley 16 drives the fifth belt pulley 18 to rotate through the third belt 17, the fifth belt pulley 18 drives the fourth press roller 43 to rotate with the first gear 19, the first gear 19 drives the third press roller 42 to rotate through the second gear 20 due to the fact that the first gear 19 is meshed with the second gear 20 and the same size, the third press roller 42 rotates in the opposite direction with the fourth press roller 43, the speed is consistent, the friction force is small, the rice is extruded from the rice husk through extrusion when passing between the third press roller 42 and the fourth press roller 43, the rice is secondarily rolled and peeled, broken rice is prevented, and germs are reserved.
Step three: the rice is peeled twice and enters the upper part of the vibration frame 49, the double-shaft motor 25 rotates, the double-shaft motor 25 drives the eccentric wheels 24 on two sides to rotate, the vibration frame 49 vibrates due to centrifugal force, the vibration frame 49 drives the first round rod 23 to slide in the through hole of the partition plate 38 to compress the second spring 22, so the vibration frame 49 only jolts up and down to vibrate, the supporting blocks 39 on two sides of the vibration frame 49 also compress the first spring 13, the vibration frame 49 irregularly vibrates up and down to separate germ rice from rice bran and broken rice, the rice bran is not pressed at the bottommost part, the dust remover 9 collects the rice bran thoroughly, the broken rice enters the broken rice cavity through the vibration frame 49 and slides into the broken rice collecting box 50, the germ rice is discharged from the discharge hole 11 through the discharge slideway 21, after all the broken rice is finished, the broken rice box is pulled out, the double-shaft motor 25 can be accelerated to run, the centrifugal force is increased, the vibration amplitude of the vibration frame 49 is increased up and down, and the supporting blocks 39 on two sides of the vibration frame 49 can impact the shell 8 to clean the whole device.
Claims (10)
1. The germ rice milling device with the high germ remaining rate comprises a shell (8), wherein a conveying mechanism is obliquely arranged in the shell (8) and comprises a conveying belt (27), a hopper (1) is fixed on the shell (8), and the hopper (1) is positioned right above the bottom end of the conveying belt (27), and is characterized in that a second baffle (31) capable of being continuously opened and closed along with upward feeding of the conveying belt (27) is hinged to the bottom of the hopper (1);
a third baffle (36) for guiding the falling rice is arranged between the opening end of the second baffle (31) and the bottom end of the conveyor belt (27);
a brush (48) for spreading rice on the surface of the conveyor belt (27) is arranged above the conveyor belt (27), and the brush (48) is fixed on the inner wall of the shell (8);
a two-stage rice milling mechanism is arranged below the blanking end of the conveyor belt (27), the first-stage rice milling mechanism tears the hard outer shell of the surface of the rice by increasing the friction force of the surface of the rice, and the second-stage rice milling mechanism extrudes germ rice from the rice husk by extrusion;
a filtering mechanism is arranged right below the two-stage rice milling mechanism, and separation of germ rice and broken rice is realized through vibration of the filtering mechanism;
a dust remover is arranged above the filtering mechanism and is used for sucking out rice husks in germ rice and dust generated by rice milling;
a discharging slide way (21) is obliquely arranged below the blanking end of the filtering mechanism, the discharging slide way (21) is fixed on the inner wall of the shell (8) and the bottom end extends out of the side wall of the shell (8).
2. A germ rice milling apparatus of high germ retention according to claim 1, wherein a plurality of ribs (47) are provided transversely and equally spaced on the surface of the conveyor belt (27).
3. The germ rice milling device with high germ retention rate according to claim 1, wherein the first stage rice milling mechanism comprises a first press roller (40) and a second press roller (41) with different rotation speeds and the same rotation direction, and the rotation speed of the second press roller (41) is larger than that of the first press roller (40), so that the friction force applied to rice when the rice passes between the first press roller (40) and the second press roller (41) is increased.
4. The germ rice milling device with high germ retention rate according to claim 1, wherein the second stage rice milling mechanism comprises a third press roller (42) and a fourth press roller (43) with the same rotation speed and opposite rotation directions, so that the germ rice is extruded from the rice husk by extrusion when the rice passes between the third press roller (42) and the fourth press roller (43).
5. The germ rice milling device with high germ retention rate according to claim 1, wherein the filtering mechanism comprises a vibration frame (49), a filter screen (37) is obliquely fixed on the vibration frame (49), one side of the filter screen (37) close to the conveyor belt (27) is higher than the other side, and the other two sides of the conveyor belt (27) are attached to the inner wall of the shell (8).
6. The germ rice milling device with high germ retention rate according to claim 5, wherein the lower part of the filter screen (37) and the vibration frame (49) enclose a rice milling cavity, and the bottom wall of the rice milling cavity is obliquely arranged and is higher than the other side near one side of the conveying belt (27).
7. The germ rice milling device with high germ retention rate according to claim 5, wherein through holes are horizontally formed in two sides of the shell (8), supporting blocks (39) which are horizontally arranged are fixed on two sides of the vibration frame (49), the supporting blocks (39) are located in the through holes and can move up and down, a plurality of first springs (13) which are uniformly and horizontally arranged are fixedly arranged on the lower end faces of the supporting blocks (39), and the lower end faces of the plurality of first springs (13) are fixedly arranged on through holes in the outer walls of two sides of the shell (8).
8. The germ rice milling device with high germ retention rate according to claim 5, wherein two symmetrical second springs (22) and first round rods (23) are fixedly arranged on the lower end face of the vibration frame (49), the first round rods (23) are located inside the second springs (22), a partition plate (38) is fixedly arranged on the lower end face of the second springs (22), two sides of the partition plate (38) are fixed on the inner wall of the shell (8), and the lower end face of the first round rods (23) penetrates through the partition plate (38) and is in sliding connection with the partition plate (38).
9. The germ rice milling device with high germ retention rate according to claim 5, wherein a double-shaft motor (25) is arranged below the vibration frame (49), and eccentric wheels (24) are arranged on output shafts at two ends of the double-shaft motor (25).
10. A germ rice milling method with high germ retention rate according to claim 1, comprising the steps of:
step one: pouring the rice into the feed hopper (1), then starting the conveyor belt (27), and enabling the second baffle plate (31) to be continuously opened and closed while the conveyor belt (27) moves, so that the rice in the hopper (1) can fall onto the surface of the conveyor belt (27) along the third baffle plate (36), and the rice can be smoothed on the surface of the conveyor belt (27) when passing through the hairbrush (48);
step two: the rice falls into a two-stage rice milling mechanism from a conveyor belt (27), the hard outer shell on the surface of the rice is torn by the first-stage rice milling mechanism, and germ rice is extruded from the rice husk by the second-stage rice milling mechanism;
step three: after twice peeling, the rice enters the upper part of a vibration frame (49), the vibration frame (49) vibrates to screen the broken rice into a broken rice cavity and slides into a broken rice collecting box (50), dust generated by rice husks and rice milling is sucked out through a dust remover (9), germ rice is shaken off onto a discharge slideway (21) and is discharged from a discharge hole (11), after all the rice is finished, a door (12) is opened to draw out the broken rice collecting box (50), and then the device is cleaned.
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| CN202310508390.2A CN116422398A (en) | 2023-05-06 | 2023-05-06 | Germ rice milling device and method with high germ retention rate |
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