CN113171820B - Rice processing bran sieving device based on self-service fresh rice machine and bran sieving method thereof - Google Patents

Abstract

The invention discloses a rice processing bran sieving device based on a self-service fresh rice machine and a bran sieving method thereof, relates to the technical field of self-service fresh rice machines, and aims to solve the problems that the existing bran sieving device is poor in rice bran separation effect and difficult to treat rice bran adhered to the surface of rice due to moisture. The inside of conveyor has the rotation axis, screw blade's outside all is provided with the frosting layer, conveyor's outside is provided with drying device, conveyor's below is provided with the mounting panel, the urceolus is installed in the inside rotation of mounting panel, the internally mounted of urceolus has the inner tube, the below of mounting panel is provided with first collecting box, two sets of ring gears on the drive gear are central symmetry and distribute with drive gear's centre of a circle as the center, one side of drive gear is provided with reset gear, the top of first collecting box is provided with the sieve, the top of sieve is provided with bellows, the inside one side seal of bellows is fixed with rice bran absorption cover.

Description

Rice processing bran sieving device based on self-service fresh rice machine and bran sieving method thereof

Technical Field

The invention relates to the technical field of self-service fresh rice machines, in particular to a rice processing bran sieving device based on a self-service fresh rice machine and a bran sieving method thereof.

Background

The self-service fresh rice machine can process rice to the maximum limit, so that the rice milling process is gradually a new trend, the self-service fresh rice machine combines the functions of rice processing and rice selling, the rice is added into the grain bin, the rice is milled now for the consumer, the process from the original rice to the rice only needs tens of seconds, the middle process is completely transparent, the rice is processed into white rice or brown rice and germ rice through the rice milling machine set in the vending machine after the consumer processes the rice into the fresh rice. Unlike traditional passage, the distance between consumer and commodity is greatly shortened, and the safety of rice production is ensured by means of on-site processing.

The self-service fresh rice machine is used for cleaning rice on site, hulling and milling rice, and then can separate rice hulls outside the rice, but the surface of the rice after separation is still wrapped with one layer of rice bran, so that the rice can be protected, but the taste of the rice can be influenced to a certain extent in the eating process of people, and then after the rice is dehulled, a bran sieving device is needed to be used for separating the rice bran so as to ensure the quality of the rice.

However, some defects exist in the use process of the bran sieving device used by the existing self-service fresh rice machine: 1. the bran screening mode is single, and most of the bran screening modes utilize volume difference to realize separation by using a screening hopper, but the bran screening mode is low in screening efficiency and can not realize the falling of most of rice bran; 2. the rice bran processing device and the rice bran processing method based on the self-service fresh rice machine are provided for the purpose of solving the problem that the rice bran processing device is difficult to separate after the rice bran is adhered by the water due to the fact that the surface of the rice is possibly influenced by environmental factors.

Disclosure of Invention

The invention aims to: the rice processing bran sieving device based on the self-service fresh rice machine and the bran sieving method thereof are provided, so that the problems that the bran sieving device provided in the background art is poor in rice bran separation effect and is difficult to process rice bran adhered to the surface of rice due to moisture are solved.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a rice processing bran screening device and bran screening method based on self-service fresh rice machine, includes conveyor, conveyor's internally mounted has the rotation axis, the outside of rotation axis is integrative to be provided with helical blade, and helical blade is provided with ten, helical blade's outside all is provided with the sand layer, and sand layer and helical blade adhesion are fixed, conveyor's outside is provided with drying device, and drying device passes through the bolt fastening with conveyor, conveyor's below is provided with the mounting panel, the urceolus is installed in the internal rotation of mounting panel, and the urceolus is the toper structure, the lower extreme welded fastening of urceolus has first drive wheel, the internally mounted of urceolus has the inner tube, and the inner tube is the toper structure, and the upper end and the mounting panel of inner tube pass through the bearing rotation to be connected, the outside welded fastening of inner tube upper end has the second drive wheel, a first collecting box is arranged below the mounting plate, driving gears are arranged at the front end and the rear end of the inside of the first collecting box, two groups of toothed rings on the driving gears are distributed in a central symmetry mode by taking the circle center of the driving gears as the center, the included angle of the circle center of each group of toothed rings is seventy degrees, a reset gear is arranged on one side of the driving gears, the reset gear is meshed with the toothed rings on the driving gears, the upper part of the first collecting box is provided with a sieve plate, the upper part of the sieve plate is provided with an air box, one side of the inside of the air box is fixedly sealed with a rice bran absorbing cover, the lower part of the first collecting box is provided with a base, so that on one hand, the screening efficiency of rice bran is improved, and on the other hand, most rice bran can fall off, on the other hand, the influence of environmental humidity factors is aimed at, the moisture drying treatment is carried out in the process of conveying rice, avoid excessive adhesion between rice bran and rice.

In further embodiments, one side of conveyor upper end is provided with the rice and advances the pipe, and the rice advances the pipe and be linked together with conveyor, one side of conveyor lower extreme is provided with the rice exit tube, and the lower extreme of rice exit tube is located one side of urceolus upper end, one side fixed mounting of conveyor has first motor, and the output shaft and the rotation axis of first motor pass through the shaft coupling transmission to be connected, interval between the helical blade is progressively decreased towards the other end by the one end that is close to first motor, and helical blade's outer end all laminates with conveyor's inner wall, and the transportation carries out preferential separation with the rice bran that the rice surface is easy to separate under the effect of sand layer, avoids these great rice bran of volume to influence the effect of careful processing in subsequent processing.

In a further embodiment, the drying device comprises electrothermal tubes and heat-conducting plates, the electrothermal tubes are provided with a plurality of electrothermal tubes, the input ends of the electrothermal tubes are electrically connected with the output ends of the direct-current stabilized power supply, the heat-conducting plates are positioned between two adjacent electrothermal tubes, the inner walls of the heat-conducting plates are fixedly adhered to the conveying device through silica gel, the influence of environmental factors can be overcome, and the problem that rice bran and rice are difficult to separate due to adhesion caused by water vapor in an air humid environment is avoided.

In a further embodiment, be provided with the spiral between urceolus and the inner tube and grind the chamber soon, interval between urceolus and the inner tube is gradually reduced towards the other end by the one end that is close to conveyor, the inner wall of urceolus and the outer wall of inner tube all are provided with fiber felt cloth, and fiber felt cloth passes through viscose adhesion with urceolus and inner tube respectively and fix, fiber felt cloth and inner tube on the urceolus are each other for the reverse spiral setting, the inside lower extreme fixed mounting of mounting panel has the second motor, and the output shaft and the first drive wheel of second motor pass through first drive belt transmission to be connected, the inside upper end fixed mounting panel has the third motor, and the output shaft and the second drive wheel of third motor pass through the second drive belt transmission to be connected, through this kind of mode, can realize the continuity processing of rice, avoid single-batch processing, influence holistic separation efficiency.

In further embodiments, the front and back ends of the bottom of the screen plate are all provided with a tooth slot plate, the tooth slot plate is fixed with the screen plate through screws, two groups of tooth rings and reset gears on the driving gear are all meshed with the tooth slot plate, a fourth motor is installed at the rear end of the driving gear, the lower end of the fourth motor is fixed with the first collecting box through bolts, a limiting slide block is arranged at the front and back end of the screen plate uniformly, the limiting slide block is in sliding connection with the first collecting box, shaking of rice at the upper end of the screen plate can be efficiently realized, complex horizontal movement is realized between the rice, and separated rice bran can fall into the first collecting box through the screen plate to be collected.

In further embodiments, the baffle is installed to one side of sieve, and the baffle rotates with the sieve to be connected, one side fixed mounting of sieve front end has step motor, and step motor's output shaft and baffle fixed connection, and the baffle can form the baffle to the sieve, avoids the landing of rice when the bran of sieving, simultaneously under step motor's drive, can be convenient for carry out the roll-off through the rice of bran of sieving.

In a further embodiment, the inside fixed mounting of first collecting box has the fan that sweeps, and sweeps the fan and be central symmetry and distribute with the sieve as the center, the top of sieve is provided with the bellows, and the upper end of bellows passes through the pipeline seal with the urceolus and fixes, be provided with the ripple cover between sieve and the bellows, the ripple cover parcel is in the clearance of sieve and bellows, and the upper and lower extreme of ripple cover respectively with sieve and bellows fixed connection, sweeps the fan and produce the air that flows at a high speed, can blow away the tiny rice bran doped between the rice after the air contact is to the rice on the sieve.

In further embodiments, the negative pressure fan is installed to one side of base, the one end seal of negative pressure fan is fixed with the second collecting box, pass through connecting pipe seal between second collecting box and the rice bran absorption cover and fix, the rice bran piece of less quality relatively enters into the second collecting box through the rice bran absorption cover, has realized handling fast to the rice bran, can guarantee that the content of rice bran remains in lower state in the rice of ejection of compact, is favorable to improving the edible taste of rice.

In a further embodiment, electric putter is installed to intermediate position department of base, and electric putter installs two, one side fixed mounting of first collecting box bottom has first rotation seat, and the lower extreme of first rotation seat rotates with the base to be connected, the opposite side slidable mounting of first collecting box bottom has the second to rotate the seat, and the lower extreme of second rotation seat rotates with electric putter to be connected, and electric putter can realize the holistic slope of sieve, and then rice slides towards one side under the action of gravity, is convenient for follow-up packing treatment.

A bran sieving method of a rice bran sieving device based on a self-service fresh rice machine comprises the following steps:

firstly, enabling shelled rice to enter a conveying device through a rice inlet pipe, enabling the rice to move through rotation of a spiral blade, simultaneously starting a drying device, transferring heat into the conveying device, drying moisture on the surface of the rice, gradually separating rice bran on the surface under the action of friction in the conveying process, and discharging the dried and primarily separated rice through a rice outlet pipe;

step two, after the rice subjected to the drying primary separation enters a rotary grinding cavity, slowly descending from a gap between the outer cylinder and the inner cylinder, starting a second motor and a third motor to enable the outer cylinder and the inner cylinder to reversely rotate, and continuously extruding and rubbing the rice by using a rotary medium fiber felt cloth in the continuous falling process of the rice to finely grind the surface of the rice;

thirdly, the rice finely ground by the inner cylinder falls onto a sieve plate, and high-frequency reciprocating motion of the sieve plate is formed along with high-speed rotation of a fourth motor, so that rice bran in the rice is sieved;

step four, in the process of shaking the bran by the sieve plate, starting a blowing fan to generate high-speed flowing air, and blowing away tiny rice bran doped between the rice after the air contacts the rice on the sieve plate so as to enable the rice to float up to the inside of the bellows, and simultaneously starting a negative pressure fan, wherein rice bran scraps outside the rice bran absorption cover are sucked into a second collecting box along with the air, so that the rapid collection of the floating rice bran scraps is realized;

step five, starting the electric push rod to enable the rear end of the first collecting box to be lifted, simultaneously starting the stepping motor and opening the baffle, so that rice gradually slides to the outside of the self-service fresh rice machine under the shaking action of the screen plate, and carrying out integral packaging.

The beneficial effects are that: 1. according to the rice husking machine, the conveying device is arranged, the conveying device can be used for conveying shelled rice, the surface of the shelled rice can be pretreated, the shelled rice enters the conveying device through the rice inlet pipe, the first motor is started, the output shaft of the first motor drives the rotating shaft with the spiral blades inside to rotate, meanwhile, the drying device is started, the electric heating pipe is powered on, electric energy is converted into heat energy, heat is generated, the heat conducting plate is made of metal materials, the heat is transferred to the inside of the conveying device under the action of heat conduction, along with the continuous rising of the internal temperature, moisture on the surface of the rice is continuously dried, so that the bonding degree of rice bran to the rice is reduced, along with the continuous rotation of the spiral blades, the distance between two adjacent spiral blades is gradually reduced, the rice is extruded and continuously piled up, the surface of the sand layer is provided with a rough convex structure, when the piled rice contacts to the friction layer, the rice on the surface of the sand layer is gradually separated under the action of friction, therefore primary treatment work is realized, the rice is dried, the rice subjected to moisture is discharged under the action of friction, the rice is easily, the moisture is easily influenced by the moisture in the pipe, on the surface of the rice separation mode, on the surface is easily, on the other hand, the moisture is difficult to separate the rice is easily influenced under the action of the moisture, and the moisture is easily caused, and the moisture is separated under the conditions, and the moisture conditions.

2. According to the invention, the outer cylinder is rotatably arranged in the mounting plate, the inner cylinder opposite to the rotation direction of the outer cylinder is arranged in the outer cylinder, after the dried and primarily separated rice enters the outer cylinder, the gap between the outer cylinder and the inner cylinder is slowly reduced, the second motor and the third motor are started, the output shaft of the second motor drives the first driving wheel to rotate clockwise under the transmission of the first driving belt, the outer cylinder and the outer cylinder are synchronously rotated, the output shaft of the third motor drives the second driving wheel to rotate anticlockwise under the transmission of the second driving belt, the inner cylinder and the inner cylinder are synchronously rotated, and because the diameter of the first driving wheel is larger than that of the second driving wheel, the inner cylinder is faster than that of the outer cylinder in rotating speed, and meanwhile, the inner wall of the outer cylinder and the outer wall of the inner cylinder are both provided with fiber felt cloth, and the fiber felt cloth are in rough porous structures, and in the continuous falling process of the rice, the rotating fiber felt cloth continuously extrudes and rubs the surface of the rice, so that the rice is finely polished, the rice is finely separated, the rice is soft, the fiber felt is not damaged, the rice is continuously polished, the diameter is not damaged, the rice felt is continuously, the rice is not damaged, the fiber felt is gradually is reduced, the surface is continuously is reduced, the quality is also is not influenced, and the whole is can be continuously, and the quality is can be continuously processed, and is continuously, and the quality is can be is improved, and is can be continuously and is realized.

3. According to the invention, when the rice finely ground by the inner cylinder falls onto the sieve plate, the two fourth motors are started, the output shafts of the fourth motors drive the driving gears to rotate clockwise, the two groups of toothed rings on the driving gears are symmetrically distributed, when the toothed rings are contacted with the toothed groove plate, the toothed groove plate drives the sieve plate to move towards the right side, the toothed groove plate is out of engagement when rotating to a certain angle, the toothed groove plate is engaged with the reset gear, the reset gear is driven to move anticlockwise, the sieve plate is driven to move towards the left side under the engagement of the reset gear and the toothed groove plate, so that the reciprocating motion of the sieve plate is formed along with the high-speed rotation of the fourth motors, rice bran in the rice is screened, the shaking of the rice at the upper end of the sieve plate can be realized efficiently, the rice is subjected to complex horizontal motion, and the separated rice bran can fall into the first collecting box through the sieve plate.

4. According to the invention, the fan is arranged above the sieve plate, in the process of shaking the sieve plate, the blowing fan is started to generate high-speed flowing air, after the air contacts rice on the sieve plate, tiny rice bran doped between the rice can be blown off, so that the rice can float up to the inside of the bellows, meanwhile, the negative pressure fan is started to rapidly exhaust air in the second collecting box, meanwhile, the air outside the rice bran absorbing cover is continuously supplemented into the negative pressure fan through the connecting pipe to form higher pressure difference with the outside, so that rice bran scraps outside the rice bran absorbing cover are sucked into the second collecting box along with the air, thereby realizing rapid collection of floating rice bran scraps, in the whole process, rice bran with relatively large mass enters the first collecting box through the sieve plate, rice bran scraps with relatively small mass enter the second collecting box through the rice bran absorbing cover, rapid treatment of rice bran is realized, the content of rice bran in discharged rice can be kept in a lower state, and the edible taste of rice is improved.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the conveying device of the present invention;

FIG. 3 is a perspective view showing the internal structure of the outer cylinder of the present invention;

fig. 4 is a perspective view of the connection structure of the screen plate and the first collecting box of the present invention;

fig. 5 is a perspective view of the bottom structure of the screen deck of the present invention;

FIG. 6 is a schematic view of the internal structure of the first collecting tank of the present invention;

fig. 7 is an enlarged view of a portion of the area a of fig. 1 in accordance with the present invention.

The reference numerals are: 1. a conveying device; 2. feeding rice into a pipe; 3. a rice outlet pipe; 4. a first motor; 5. a drying device; 6. an electric heating tube; 7. a heat conductive plate; 8. a mounting plate; 9. an outer cylinder; 10. an inner cylinder; 11. a first driving wheel; 12. a second motor; 13. a second driving wheel; 14. a third motor; 15. a connecting pipe; 16. a sieve plate; 17. a wind box; 18. a corrugated sleeve; 19. a fluted plate; 20. a first collection box; 21. a drive gear; 22. a reset gear; 23. purging the fan; 24. a first rotating seat; 25. an electric push rod; 26. a rice bran absorbing cover; 27. a second collection box; 28. a negative pressure fan; 29. a rotation shaft; 30. a helical blade; 31. grinding the sand layer; 32. a rotary grinding cavity; 33. a fibrous felt; 34. a baffle; 35. a stepping motor; 36. a limit sliding block; 37. a fourth motor; 38. a base; 39. a first belt; 40. a second belt; 41. and a second rotating seat.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.

Referring to fig. 1-7, an embodiment of the present invention is provided: the utility model provides a rice processing bran screening device and method based on self-service fresh rice machine, including conveyor 1, conveyor 1 internally mounted has rotation axis 29, the outside of rotation axis 29 is provided with helical blade 30 integratively, and helical blade 30 is provided with ten, rotation axis 29 rotation drives helical blade 30 rotation, thereby make inside rice remove, helical blade 30's outside all is provided with the sand layer 31, and sand layer 31 and helical blade 30 adhesion are fixed, sand layer 31 surface roughness's structure can improve the frictional force with the rice, conveyor 1's outside is provided with drying device 5, and drying device 5 passes through the bolt fastening with conveyor 1, after drying device 5 switch on, can transmit the inside of conveyor 1 with heat, conveyor 1's below is provided with mounting panel 8, mounting panel 8 is self-service fresh rice machine's connection structure, the whole bran sieving device is convenient to be connected and fixed with equipment, the outer cylinder 9 is rotatably arranged in the mounting plate 8, the outer cylinder 9 is of a conical structure, the outer cylinder 9 rotates along a pointer, a first driving wheel 11 is fixedly welded at the lower end of the outer cylinder 9, an inner cylinder 10 is arranged in the inner cylinder 9, the inner cylinder 10 is of a conical structure, the upper end of the inner cylinder 10 is rotatably connected with the mounting plate 8 through a bearing, the inner cylinder 10 rotates anticlockwise, a second driving wheel 13 is fixedly welded at the outer part of the upper end of the inner cylinder 10, a first collecting box 20 is arranged below the mounting plate 8, driving gears 21 are respectively arranged at the front end and the rear end of the inner part of the first collecting box 20, the circle centers of the driving gears 21 are symmetrically distributed in the center, the included angle of the circle center of each group of the tooth rings is seventy degrees, a reset gear 22 is arranged at one side of the driving gears 21, and the reset gear 22 is meshed with the toothed ring on the driving gear 21, a screen plate 16 is arranged above the first collecting box 20, a bellows 17 is arranged above the screen plate 16, a rice bran absorbing cover 26 is fixed on one side of the bellows 17 in a sealing manner, and a base 38 is arranged below the first collecting box 20.

Further, one side of conveyor 1 upper end is provided with rice and advances pipe 2, and rice advances pipe 2 and conveyor 1 and be linked together, one side of conveyor 1 lower extreme is provided with rice exit tube 3, and the lower extreme of rice exit tube 3 is located one side of urceolus 9 upper end, one side fixed mounting of conveyor 1 has first motor 4, and the output shaft and the rotation axis 29 of first motor 4 pass through the shaft coupling transmission to be connected, the interval between helical blade 30 is progressively decreased from being close to the one end of first motor 4 towards the other end, and helical blade 30's outer end all is laminated with conveyor 1's inner wall, along with helical blade 30's continuous rotation, the interval between two adjacent helical blade 30 reduces progressively, rice receives the extrusion and piles up constantly, through be provided with frosting layer 31 at helical blade 30's surface, the coarse protruding structure of frosting layer 31 surface, when the rice of piling up contacts to frosting layer 31, the rice bran of surface produces the separation gradually under the effect of friction, thereby realize primary treatment work.

Further, drying device 5 comprises electrothermal tube 6 and heat-conducting plate 7, electrothermal tube 6 is provided with a plurality of, and electrothermal tube 6's input and direct current stabilized power supply's output electric connection, heat-conducting plate 7 is located between two adjacent electrothermal tubes 6, and heat-conducting plate 7's inner wall and conveyor 1 pass through the silica gel adhesion fixedly, electrothermal tube 6 switch on the power and turn into heat energy with the electric energy to produce the heat, and heat-conducting plate 7 is the metal material, transfer heat to conveyor 1 inside under the effect of heat conduction, along with the continuous rising of inside temperature, constantly dry the moisture on rice surface, thereby reduce the cohesiveness degree of rice bran to the rice.

Further, a rotary grinding cavity 32 is arranged between the outer cylinder 9 and the inner cylinder 10, the distance between the outer cylinder 9 and the inner cylinder 10 gradually decreases from one end close to the conveying device 1 to the other end, fiber felt cloth 33 is arranged on the inner wall of the outer cylinder 9 and the outer wall of the inner cylinder 10, the fiber felt cloth 33 is adhered and fixed with the outer cylinder 9 and the inner cylinder 10 respectively through viscose, the fiber felt cloth 33 on the outer cylinder 9 and the fiber felt cloth 33 on the inner cylinder 10 are mutually reversely spirally arranged, a second motor 12 is fixedly arranged at the lower end inside the mounting plate 8, an output shaft of the second motor 12 is in transmission connection with the first transmission wheel 11 through a first transmission belt 39, a third motor 14 is fixedly arranged at the upper end inside the mounting plate 8, an output shaft of the third motor 14 is in transmission connection with the second transmission wheel 13 through a second transmission belt 40, the output shaft of the second motor 12 drives the first transmission wheel 11 to rotate clockwise under the transmission of the first transmission belt 39, the outer cylinder 9 and the outer cylinder are further rotated synchronously, the output shaft of the third motor 14 drives the second driving wheel 13 to rotate anticlockwise under the transmission of the second driving belt 40, the inner cylinder 10 and the inner cylinder are further rotated synchronously, and because the diameter of the first driving wheel 11 is larger than that of the second driving wheel 13, the inner cylinder 10 is faster than the outer cylinder 9 in rotating speed, and meanwhile, the surface of the fiber felt 33 is of a rough porous structure, in the continuous falling process of rice, the rotating fiber felt 33 continuously extrudes and rubs the rice, finely polishes the surface of the rice, thereby finely separating rice bran, the fiber felt 33 is soft, the rice is not damaged, the distance between the two fiber felts 33 is smaller and smaller along with the continuous falling of the rice, the polishing strength is also gradually improved, not only the rice bran on the surface of the rice can be separated, meanwhile, the surface of the rice is smooth and round, and the quality of the rice is improved to a certain extent.

Further, the front and rear ends of the bottom of the screen plate 16 are both provided with a toothed groove plate 19, the toothed groove plate 19 is fixed with the screen plate 16 through screws, two groups of toothed rings on the driving gear 21 and the reset gear 22 are both meshed with the toothed groove plate 19, a fourth motor 37 is installed at the rear end of the driving gear 21, the lower end of the fourth motor 37 is fixed with the first collecting box 20 through bolts, the front and rear ends of the screen plate 16 are uniformly provided with a limit sliding block 36, the limit sliding block 36 is in sliding connection with the first collecting box 20, when the toothed rings are contacted with the toothed groove plate 19, the toothed groove plate 19 drives the screen plate 16 to move towards the right, and when the toothed rings rotate to a certain angle, the toothed rings lose meshing with the toothed groove plate 19 and mesh with the reset gear 22, the reset gear 22 is driven to move anticlockwise, and then the screen plate 16 is driven to move towards the left under the meshing of the reset gear 22 and the toothed groove plate 19, so that the screen plate 16 reciprocates.

Further, baffle 34 is installed to one side of screen plate 16, and baffle 34 and screen plate 16 rotate to be connected, and one side fixed mounting of screen plate 16 front end has step motor 35, and step motor 35's output shaft and baffle 34 fixed connection, and baffle 34 can form the stopper to screen plate 16, avoids the landing of rice when the screen chaff, and under step motor 35's drive simultaneously, can be convenient for carry out the roll-off through the rice of screen chaff.

Further, the inside fixed mounting of first collecting box 20 has sweeps fan 23, and sweeps fan 23 and take sieve 16 to be central symmetry and distribute, the top of sieve 16 is provided with bellows 17, and the upper end of bellows 17 passes through the pipeline seal with urceolus 9 and fixes, be provided with bellows 18 between sieve 16 and the bellows 17, bellows 18 parcel is in the clearance of sieve 16 and bellows 17, and the upper and lower extreme of bellows 18 respectively with sieve 16 and bellows 17 fixed connection, open and sweep fan 23 and produce the air that flows at a high speed, can blow away the tiny rice bran that adulterates between the rice after the air contact is to the rice on the sieve 16, make it come-up to the bellows 17 inside.

Further, the negative pressure fan 28 is installed to one side of the base 38, the second collecting box 27 is fixed in a sealing manner at one end of the negative pressure fan 28, the second collecting box 27 is fixed in a sealing manner with the rice bran absorbing cover 26 through the connecting pipe 15, the negative pressure fan 28 is started to rapidly exhaust air in the second collecting box 27, meanwhile, air outside the rice bran absorbing cover 26 is continuously supplemented with the negative pressure fan 28 through the connecting pipe 15 to form a higher pressure difference with the outside, then rice bran scraps outside the rice bran absorbing cover 26 are sucked into the second collecting box 27 along with the air, and accordingly rapid collection of floating rice bran scraps is achieved, rice bran scraps with relatively large mass enter the first collecting box 20 through the sieve plate 16 in the whole process, and rice bran scraps with relatively small mass enter the second collecting box 27 through the rice bran absorbing cover, so that rapid treatment of rice bran is achieved.

Further, the electric putter 25 is installed to the intermediate position department of base 38, and electric putter 25 installs two, and one side fixed mounting of first collecting box 20 bottom has first rotation seat 24, and the lower extreme of first rotation seat 24 is connected with base 38 rotation, and the opposite side slidable mounting of first collecting box 20 bottom has second rotation seat 41, and the lower extreme of second rotation seat 41 is connected with electric putter 25 rotation, and electric putter 25 can realize the holistic slope of sieve 16, and then rice slides towards one side under the action of gravity, is convenient for carry out the packing processing subsequently.

A bran sieving method of a rice bran sieving device based on a self-service fresh rice machine is characterized by comprising the following steps of: the method comprises the following steps:

firstly, the shelled rice enters the conveying device 1 through the rice inlet pipe 2, the rice is moved through the rotation of the spiral blade 30, meanwhile, the drying device 5 is started, heat is transferred into the conveying device 1, moisture on the surface of the rice is dried, in the conveying process, rice bran on the surface is gradually separated under the action of friction, and the dried and primarily separated rice is discharged through the rice outlet pipe 3;

step two, after the rice subjected to the drying primary separation enters the rotary grinding cavity 32, the rice slowly descends from a gap between the outer cylinder 9 and the inner cylinder 10, the second motor 12 and the third motor 14 are started to enable the outer cylinder 9 and the inner cylinder 10 to reversely rotate, and in the continuous falling process of the rice, the rotating middle fiber felt cloth 33 continuously extrudes and rubs the rice, and the surface of the rice is finely ground;

thirdly, the rice finely ground by the inner cylinder 10 falls onto the sieve plate 16, and high-frequency reciprocating motion of the sieve plate 16 is formed along with high-speed rotation of the fourth motor 37, so that rice bran in the rice is screened;

step four, in the process of shaking the bran on the screen plate 16, a blowing fan 23 is started to generate high-speed flowing air, and after the air contacts the rice on the screen plate 16, tiny rice bran doped between the rice can be blown off to float up to the inside of the bellows 17, meanwhile, a negative pressure fan is started, and rice bran scraps outside the rice bran absorption cover 26 are sucked into a second collecting box 27 along with the air, so that the rapid collection of the floating rice bran scraps is realized;

step five, the electric push rod 25 is started to enable the rear end of the first collecting box 20 to be lifted, the stepping motor 35 is started, the baffle 34 is opened, and rice gradually slides to the outside of the self-service fresh rice machine under the shaking action of the screen plate 16, so that integral packaging is carried out.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. Rice processing bran sieving device based on self-service bright rice machine, including conveyor (1), its characterized in that: the inside of conveyor (1) is provided with rotation axis (29), the outside of rotation axis (29) is integrative to be provided with helical blade (30), and helical blade (30) are provided with ten, helical blade (30)'s outside all is provided with frosting layer (31), and frosting layer (31) and helical blade (30) adhesion are fixed, conveyor (1)'s outside is provided with drying device (5), and drying device (5) and conveyor (1) pass through the bolt fastening, drying device (5) are by electrothermal tube (6) and heat conduction board (7) constitution, electrothermal tube (6) are provided with a plurality of, and electrothermal tube (6)'s input and direct current steady voltage power supply's output electric connection, heat conduction board (7) are located between two adjacent electrothermal tube (6), and the inner wall and the conveyor (1) of heat conduction board (7) pass through the silica gel adhesion and fix, conveyor (1) below is provided with mounting panel (8), the inside rotation of mounting panel (8) installs urceolus (9), and urceolus (9) are cone-shaped structure (9), the inner tube (9) is the cone-shaped structure (10) is fixed for the interior section of an urceolus (10), the upper end of the inner cylinder (10) is rotationally connected with the mounting plate (8) through a bearing, a second driving wheel (13) is fixedly welded on the outside of the upper end of the inner cylinder (10), a first collecting box (20) is arranged below the mounting plate (8), driving gears (21) are arranged at the front end and the rear end of the inside of the first collecting box (20), two groups of toothed rings on the driving gears (21) are symmetrically distributed in a central mode by taking the center of the driving gears (21) as the center, the included angle of the center of each group of toothed rings is seventy degrees, one side of the driving gears (21) is provided with a reset gear (22), the reset gear (22) is meshed with the toothed rings on the driving gears (21), a screen plate (16) is arranged above the first collecting box (20), a rice bran absorbing cover (26) is fixedly arranged on one side of the inside of the first collecting box (17), a base (38) is arranged below the first collecting box (20), a tooth slot plate (16) is provided with a tooth slot plate (19) at the front end and the rear end of the bottom of the first collecting box (16) as a motor (19), the tooth slot plate (19) is meshed with the drive plate (19) and the drive plate (19) is meshed with the fourth toothed plate (19), and the lower end of the fourth motor (37) is fixed with the first collecting box (20) through bolts, the front end and the rear end of the sieve plate (16) are uniformly provided with limiting sliding blocks (36), and the limiting sliding blocks (36) are in sliding connection with the first collecting box (20).

2. The rice processing bran device based on self-service fresh rice machine of claim 1, wherein: one side of conveyor (1) upper end is provided with rice and advances pipe (2), and rice advances pipe (2) and conveyor (1) and be linked together, one side of conveyor (1) lower extreme is provided with rice exit tube (3), and the lower extreme of rice exit tube (3) is located one side of urceolus (9) upper end, one side fixed mounting of conveyor (1) has first motor (4), and the output shaft and the rotation axis (29) of first motor (4) pass through the shaft coupling transmission and are connected, interval between helical blade (30) is progressively decreased towards the other end by the one end that is close to first motor (4), and the outer end of helical blade (30) all laminates with the inner wall of conveyor (1) mutually.

3. The rice processing bran device based on self-service fresh rice machine according to claim 2, wherein: the novel rotary grinding device is characterized in that a rotary grinding cavity (32) is arranged between the outer cylinder (9) and the inner cylinder (10), the distance between the outer cylinder (9) and the inner cylinder (10) is gradually reduced from one end close to the conveying device (1) to the other end, fiber felt cloth (33) are arranged on the inner wall of the outer cylinder (9) and the outer wall of the inner cylinder (10), the fiber felt cloth (33) is fixed with the outer cylinder (9) and the inner cylinder (10) through viscose adhesion respectively, the fiber felt cloth (33) on the outer cylinder (9) and the fiber felt cloth (33) on the inner cylinder (10) are in reverse spiral arrangement, a second motor (12) is fixedly arranged at the lower end inside the mounting plate (8), an output shaft of the second motor (12) is in transmission connection with the first transmission wheel (11) through a first transmission belt (39), a third motor (14) is fixedly arranged at the upper end inside the mounting plate (8), and the output shaft of the third motor (14) is in transmission connection with the second transmission wheel (13) through a second transmission belt (40).

4. A rice processing screen bran device based on self-service fresh rice machine according to claim 3, wherein: the baffle (34) is installed on one side of the screen plate (16), the baffle (34) is rotationally connected with the screen plate (16), the stepping motor (35) is fixedly installed on one side of the front end of the screen plate (16), and an output shaft of the stepping motor (35) is fixedly connected with the baffle (34).

5. The rice processing bran device based on self-service fresh rice machine of claim 4, wherein: the inside fixed mounting of first collecting box (20) has sweeps fan (23), and sweeps fan (23) and be central symmetry and distribute with sieve (16) as the center, the top of sieve (16) is provided with bellows (17), and the upper end of bellows (17) is fixed through the pipeline seal with urceolus (9), be provided with ripple cover (18) between sieve (16) and bellows (17), ripple cover (18) parcel is in the clearance of sieve (16) and bellows (17), and the upper and lower extreme of ripple cover (18) respectively with sieve (16) and bellows (17) fixed connection.

6. The rice processing bran device based on self-service fresh rice machine of claim 5, wherein: negative pressure fan (28) is installed to one side of base (38), the one end seal of negative pressure fan (28) is fixed with second collecting box (27), seal through connecting pipe (15) between second collecting box (27) and rice bran absorption cover (26).

7. The rice processing bran device based on self-service fresh rice machine of claim 6, wherein: electric putter (25) are installed to intermediate position department of base (38), and electric putter (25) are installed two, one side fixed mounting of first collecting box (20) bottom has first rotation seat (24), and the lower extreme of first rotation seat (24) rotates with base (38) to be connected, the opposite side slidable mounting of first collecting box (20) bottom has second rotation seat (41), and the lower extreme of second rotation seat (41) rotates with electric putter (25) to be connected.

8. The bran screening method of the rice bran screening device based on the self-service fresh rice machine, which is characterized by comprising the following steps of: the method comprises the following steps:

firstly, the shelled rice enters the conveying device (1) through a rice inlet pipe (2), the rice is moved through the rotation of a spiral blade (30), meanwhile, a drying device (5) is started, heat is transferred to the interior of the conveying device (1), moisture on the surface of the rice is dried, rice bran on the surface is gradually separated under the action of friction in the conveying process, and the dried and primarily separated rice is discharged through a rice outlet pipe (3);

step two, after the rice subjected to drying primary separation enters a rotary grinding cavity (32), slowly descending from a gap between an outer cylinder (9) and an inner cylinder (10), starting a second motor (12) and a third motor (14) to enable the outer cylinder (9) and the inner cylinder (10) to reversely rotate, and continuously extruding and rubbing the rice by a rotary medium fiber felt cloth (33) in the continuous falling process of the rice to finely grind the surface of the rice;

thirdly, the finely ground rice passes through the inner cylinder (10) and falls onto the sieve plate (16), and high-frequency reciprocating motion of the sieve plate (16) is formed along with high-speed rotation of the fourth motor (37), so that rice bran in the rice is sieved;

step four, in the process of shaking the bran on the screen plate (16), a blowing fan (23) is started to generate high-speed flowing air, and after the air contacts with rice on the screen plate (16), tiny rice bran doped between the rice can be blown off to float up to the inside of a bellows (17), meanwhile, a negative pressure fan is started, and rice bran scraps outside a rice bran absorption cover (26) are sucked into a second collection box (27) along with the air, so that the rapid collection of the floating rice bran scraps is realized;

step five, an electric push rod (25) is started to enable the rear end of the first collecting box (20) to be lifted, a stepping motor (35) is started, a baffle (34) is opened, and rice gradually slides to the outside of the self-service fresh rice machine under the shaking action of the screen plate (16) to be packaged integrally.