CN113171820A - 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 is difficult to treat rice bran adhered to the surface of rice due to water. Conveyor's internally mounted has the rotation axis, helical blade's outside all is provided with the dull polish layer, conveyor's outside is provided with drying device, conveyor's below is provided with the mounting panel, the urceolus is installed in the internal 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 rings of teeth on the drive gear use drive gear's the centre of a circle to be central symmetric distribution 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 the rice bran and absorbs the 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

Self-service fresh rice machine, the at present furthest of processing remains rice nutrition and lets the current husk rice become new trend gradually, and self-service fresh rice machine combines together the function that paddy processing and rice were sold, and what the granary added into is the paddy, sells for the consumer is the rice that is ground now, only needs dozens of seconds from former paddy to rice, and middle process is transparent completely, sees through the rice mill unit processing in the vending machine with the paddy behind the consumption and is white rice or brown rice, germ rice, can let the consumer obtain fresh rice. Different from the traditional path that the rice can reach the retail place only by means of pipe marketing layer by layer, the distance between a consumer and a commodity is greatly shortened, convenience is provided for the consumer, and the safety of the produced rice is guaranteed by means of field processing.

Self-service fresh rice machine carries out on-the-spot clearance to rice, rice huller and rice milling after, can separate the outside rice husk of rice, but the rice surface through the separation still wraps up one deck rice bran, though the rice bran can realize the protection to the rice, nevertheless eat the in-process at people, can influence the taste of rice to a certain extent, so after the rice shelling, need use the chaff device, separate the rice bran to guarantee the rice quality.

However, the bran sieving device used by the existing self-service rice machine has some defects in the using process: firstly, the bran screening mode is single, and separation is realized by using volume difference through a screening hopper mostly, but the screening efficiency is low, and most of rice bran can not fall off; the rice processing and bran screening device and the bran screening method based on the self-service fresh rice machine are provided for solving the problem that separation is difficult to realize after rice bran is adhered by water, and the existing requirements are not met due to the fact that the water possibly exists on the surface of rice under the influence of environmental factors.

Disclosure of Invention

The purpose of the invention is as follows: the rice bran sieving device and the rice bran sieving method based on the self-service fresh rice machine are provided, and the problems that the rice bran separating effect of the rice bran sieving device in the background technology is poor and the rice bran adhered to the surface of rice due to water is difficult to treat are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a rice processing bran sieving device based on a self-service fresh rice machine and a bran sieving method thereof comprise a conveying device, wherein a rotating shaft is arranged inside the conveying device, spiral blades are integrally arranged outside the rotating shaft, ten spiral blades are arranged on the spiral blades, a frosting layer is arranged outside each spiral blade and is fixedly adhered to each spiral blade, a drying device is arranged outside the conveying device and is fixed to the conveying device through bolts, a mounting plate is arranged below the conveying device, an outer barrel is rotatably arranged inside the mounting plate and is of a conical structure, a first transmission wheel is fixedly welded at the lower end of the outer barrel, an inner barrel is arranged inside the outer barrel and is of a conical structure, the upper end of the inner barrel is rotatably connected with the mounting plate through a bearing, and a second transmission wheel is fixedly welded at the upper end of the inner barrel, a first collecting box is arranged below the mounting plate, the front end and the rear end in the first collecting box are both provided with a driving gear, two groups of gear rings on the driving gear are distributed in a centrosymmetric way by taking the circle center of the driving gear as the center, and the included angle of the circle center of each group of the gear rings is seventy degrees, one side of the driving gear is provided with a reset gear, the reset gear is meshed and connected with a gear ring on the driving gear, a sieve plate is arranged above the first collecting box, an air box is arranged above the sieve plate, a rice bran absorbing cover is hermetically fixed at one side inside the air box, the base is arranged below the first collecting box, so that the rice bran screening efficiency is improved, meanwhile, most of the rice bran can fall off, and on the other hand, aiming at the influence of environmental moisture, carry out moisture drying process at the in-process of carrying the rice, avoid producing excessively between rice bran and the rice and bond.

In a further embodiment, one side of the upper end of the conveying device is provided with a rice inlet pipe, the rice inlet pipe is communicated with the conveying device, one side of the lower end of the conveying device is provided with a rice outlet pipe, the lower end of the rice outlet pipe is located at one side of the upper end of the outer barrel, a first motor is fixedly mounted at one side of the conveying device, an output shaft of the first motor is in transmission connection with the rotating shaft through a coupler, the distance between the spiral blades gradually decreases from one end close to the first motor to the other end, the outer ends of the spiral blades are attached to the inner wall of the conveying device, rice bran easily separated from the surface of rice is preferentially separated under the action of the frosting layer in the conveying process, and the rice bran with large volume is prevented from influencing the effect of fine processing in the.

In further embodiment, drying device comprises electrothermal tube and heat-conducting plate, the electrothermal tube is provided with a plurality of, and the input of electrothermal tube and DC voltage-stabilized power supply's output electric connection, the heat-conducting plate is located between two adjacent electrothermal tubes, and the inner wall of heat-conducting plate passes through the silica gel adhesion with conveyor and fixes, can overcome the influence of environmental factor, avoids the problem that steam messenger rice bran and rice produced to adhere and lead to being difficult to the separation under the air humid environment.

In a further embodiment, a rotary grinding cavity is arranged between the outer cylinder and the inner cylinder, the distance between the outer cylinder and the inner cylinder is gradually reduced from one end close to the conveying device to the other end, fiber felt cloth is arranged on the inner wall of the outer cylinder and the outer wall of the inner cylinder, the fiber felt cloth is respectively adhered and fixed with the outer cylinder and the inner cylinder through viscose, the fiber felt cloth on the outer cylinder and the fiber felt cloth on the inner cylinder are arranged in a mutually reverse spiral manner, the lower end inside the mounting plate is fixedly provided with a second motor, the output main of the second motor is in transmission connection with the first transmission wheel through a first transmission belt, the upper end inside the mounting plate is fixedly provided with a third motor, the output shaft of the third motor is in transmission connection with the second transmission wheel through a second transmission belt, by the method, continuous processing of the rice can be realized, and the influence on the whole separation efficiency due to batch and single-quantity processing is avoided.

In a further embodiment, the front and back end of sieve bottom all is provided with the fluted plate, and the fluted plate passes through the screw fixation with the sieve, two sets of ring gears on the drive gear all are connected with the meshing of fluted plate with reset gear, the fourth motor is installed to drive gear's rear end, and the lower extreme and the first collecting box of fourth motor pass through the bolt fastening, the front and back end homogeneous body of sieve is provided with limit slide, and limit slide and first collecting box sliding connection, can realize rocking the rice on the sieve with high efficiency, makes to do complicated horizontal motion between the rice, and the rice bran that is so separated can fall into first collecting box through the sieve and collect.

In further embodiment, 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 landing that blocks the sieve, avoids the landing of rice when the chaff, and under step motor's drive, the rice through the chaff of being convenient for carries out the roll-off simultaneously.

In a further embodiment, the inside fixed mounting of first collecting box has the fan that sweeps, and sweeps the fan and use the sieve to be central symmetric distribution as the center, the top of sieve is provided with bellows, and the upper end of bellows passes through the pipe seal with the urceolus and fixes, be provided with the ripple cover between sieve and the bellows, the ripple cover wraps up in the clearance of sieve and bellows, and the upper and lower end of ripple cover respectively with sieve and bellows fixed connection, sweep the fan and produce the air that flows at a high speed, can blow away the small rice bran of adulteration between the rice behind the air contact to the rice on the sieve.

In a further embodiment, negative-pressure air fan is installed on one side of the base, a second collecting box is fixed to one end of the negative-pressure air fan in a sealing mode, the second collecting box and the rice bran absorbing cover are fixed in a sealing mode through a connecting pipe, rice bran fragments with relatively small mass enter the second collecting box through the rice bran absorbing cover, rapid processing of the rice bran is achieved, the content of the rice bran in the discharged rice can be guaranteed to be kept in a lower state, and the rice bran absorbing cover is beneficial to improving the edible taste of the rice.

In a further embodiment, the middle position of the base is provided with two electric push rods, one side of the bottom of the first collecting box is fixedly provided with a first rotating seat, the lower end of the first rotating seat is rotatably connected with the base, the other side of the bottom of the first collecting box is slidably provided with a second rotating seat, the lower end of the second rotating seat is rotatably connected with the electric push rods, the electric push rods can realize the integral inclination of the sieve plate, and the rice slides towards one side under the action of gravity, so that the subsequent packing treatment is facilitated.

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

step one, hulled rice enters a conveying device through a rice inlet pipe, the rice is moved through rotation of a spiral blade, a drying device is started at the same time, heat is transferred to the inside of the conveying device, 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;

step two, after the rice which is primarily separated by drying enters a rotary grinding cavity, the rice slowly descends from a gap between an outer cylinder and an inner cylinder, a second motor and a third motor are started to enable the outer cylinder and the inner cylinder to rotate reversely, and in the continuous falling process of the rice, the rotating middle fiber felt cloth continuously extrudes and rubs the rice to finely grind the surface of the rice;

step three, the rice finely ground by the inner barrel falls onto the sieve plate, and forms high-frequency reciprocating motion of the sieve plate along with the high-speed rotation of the fourth motor, so that rice bran in the rice is sieved;

step four, in the process that the sieve plate shakes the bran, the blowing fan is started to generate high-speed flowing air, the air can blow away the micro rice bran doped between the rice after contacting the rice on the sieve plate, so that the rice bran floats to the inside of the air box, meanwhile, the negative pressure fan is started, rice bran fragments outside the rice bran absorption cover are sucked into the second collection box along with the air, and therefore the quick collection of the floating rice bran fragments is achieved;

and step five, starting the electric push rod to lift the rear end of the first collecting box, simultaneously starting the stepping motor, opening the baffle plate, and gradually sliding the rice to the outside of the self-service fresh rice machine under the shaking action of the sieve plate to carry out integral packaging.

Has the advantages that: 1. the conveying device is provided with the conveying device, the conveying device can not only convey the rice after shelling, but also pretreat the surface of the rice, the rice after shelling enters the conveying device through the rice inlet pipe, the output shaft of the first motor drives the rotating shaft internally provided with the helical blades to rotate by starting the first motor, meanwhile, the drying device is started to connect the electric heating pipe to convert electric energy into heat energy so as to generate heat, the heat conducting plate is made of metal materials, the heat is transmitted to the inside of the conveying device under the action of heat conduction, the moisture on the surface of the rice is continuously dried along with the continuous rising of the internal temperature, the adhesion degree of rice bran to the rice is reduced, the distance between two adjacent helical blades is gradually reduced along with the continuous rotation of the helical blades, the rice is extruded and accumulated, and the frosted layer is continuously arranged on the surfaces of the helical blades, the coarse protruding structure on the surface of frosting layer, when accumulational rice contacts the frictional layer, the separation is produced gradually to surperficial rice bran under frictional effect, thereby realize primary treatment work, rice through drying and primary separation passes through the rice exit tube and discharges, through this kind of mode, environmental factor's influence can be overcome on the one hand, avoid the problem that steam messenger rice bran and rice produced to adhere and lead to being difficult to the separation under the humid environment of air, on the other hand the transportation carries out preferential separation with the rice bran of the easy separation in rice surface under the effect of frosting layer, avoid these great rice bran of volume to influence the effect of careful processing in follow-up processing.

2. The invention is characterized in that an outer cylinder is rotatably arranged in a mounting plate, an inner cylinder with the rotation direction opposite to that of the outer cylinder is arranged in the outer cylinder, after rice which is primarily separated by drying enters the outer cylinder, the rice slowly descends from a gap between the outer cylinder and the inner cylinder, a second motor and a third motor are started, an output shaft of the second motor drives a first driving wheel to rotate clockwise under the transmission of a first driving belt, so that the outer cylinder and the outer cylinder rotate synchronously, an output shaft of the third motor drives a second driving wheel to rotate anticlockwise under the transmission of a second driving belt, so that the inner cylinder and the inner cylinder rotate synchronously, as 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 on the rotating speed, fiber felt cloth is arranged on both the inner wall of the outer cylinder and the outer wall of the inner cylinder, the surface of the fiber felt cloth is of a rough porous structure, and in the continuous falling process of the rice, fibre felt cloth in the rotation constantly extrudees the friction to the rice, carry out the careful polishing to the surface of rice, thereby the separation with the rice bran careful, and fibre felt cloth texture is soft, can not produce the damage to the rice, along with the continuous decline of rice, interval between two fibre felt cloths is also more and more littleer, intensity of polishing also improves gradually, not only can separate the rice bran on rice surface, can make the rice surface smooth mellow and full simultaneously, the rice quality has been improved to a certain extent, through this kind of mode, can realize the continuity processing of rice, avoid the processing of batch unit, influence holistic separation efficiency.

3. The invention is provided with the sliding sieve plate, when the rice finely ground by the inner cylinder falls onto the sieve plate, the two fourth motors are started, the output shaft drives the driving gear to rotate clockwise, and the two groups of gear rings on the driving gear are symmetrically distributed, when the gear rings contact the tooth socket plate, the toothed groove plate drives the sieve plate to move towards the right side, the mesh of the toothed groove plate is lost when the sieve plate rotates to a certain angle, the sieve plate is meshed with the reset gear to drive the reset gear to move anticlockwise, the sieve plate is driven to move towards the left side under the meshing of the reset gear and the toothed groove plate, so that the sieve plate reciprocates to form high-frequency reciprocating motion of the sieve plate along with the high-speed rotation of the fourth motor, the rice bran to in the rice divides the sieve, through this kind of mode, can realize rocking the rice on the sieve efficiently, makes the horizontal motion of complicacy between the rice, and the rice bran that separates so can fall into first collection box through the sieve and collect.

4. The fan is arranged above the sieve plate, in the process of shaking the bran on the sieve plate, the blowing fan is started to generate air flowing at a high speed, the air can blow away micro bran doped between the rice after contacting the rice on the sieve plate, the rice can float to the inside of the air box, the negative pressure fan is started at the same time, the air in the second collecting box is quickly discharged, meanwhile, the air outside the bran absorbing cover is continuously supplemented into the negative pressure fan through the connecting pipe, a high pressure difference is formed between the air and the outside, the bran scraps outside the bran absorbing cover are sucked into the second collecting box along with the air, so that the quick collection of the rice bran scraps floating upwards is realized, in the whole process, the rice bran scraps with relatively large mass enter the first collecting box through the sieve plate, the rice bran scraps with relatively small mass enter the second collecting box through the rice bran absorbing cover, and the quick treatment of the rice bran is realized, the rice bran content in the discharged rice can be kept at a low state, and the edible taste of the rice is favorably 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 apparatus of the present invention;

FIG. 3 is a perspective view of the inner structure of the outer tub of the present invention;

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

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

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

fig. 7 is a partially enlarged view of the area a of fig. 1 according to the present invention.

The reference signs are: 1. a conveying device; 2. feeding rice into a pipe; 3. discharging a rice pipe; 4. a first motor; 5. a drying device; 6. an electric heating tube; 7. a heat conducting plate; 8. mounting a plate; 9. an outer cylinder; 10. an inner barrel; 11. a first drive pulley; 12. a second motor; 13. a second transmission wheel; 14. a third motor; 15. a connecting pipe; 16. a sieve plate; 17. an air box; 18. a corrugated sleeve; 19. a gullet plate; 20. a first collection tank; 21. a drive gear; 22. a reset gear; 23. purging the fan; 24. a first rotating base; 25. an electric push rod; 26. a rice bran absorption cover; 27. a second collection tank; 28. a negative pressure fan; 29. a rotating shaft; 30. a helical blade; 31. sanding layer; 32. a rotary grinding cavity; 33. fiber felt cloth; 34. a baffle plate; 35. a stepping motor; 36. a limiting slide block; 37. a fourth motor; 38. a base; 39. a first drive 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 present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

Referring to fig. 1-7, an embodiment of the present invention is shown: a rice processing bran device based on a self-service fresh rice machine and a bran sieving method thereof comprise a conveying device 1, a rotating shaft 29 is installed inside the conveying device 1, spiral blades 30 are integrally arranged outside the rotating shaft 29, ten spiral blades 30 are arranged on the spiral blades 30, the rotating shaft 29 rotates to drive the spiral blades 30 to rotate, so that the rice inside the rice moves, frosted layers 31 are arranged outside the spiral blades 30, the frosted layers 31 are fixedly adhered to the spiral blades 30, the coarse surface structure of the frosted layers 31 can improve the friction force between the frosted layers and the rice, a drying device 5 is arranged outside the conveying device 1, the drying device 5 and the conveying device 1 are fixed through bolts, after the drying device 5 is powered on, the heat can be transmitted to the inside of the conveying device 1, a mounting plate 8 is arranged below the conveying device 1, and the mounting plate 8 is a connecting structure of the self-service fresh rice machine, the whole screen bran device is conveniently connected and fixed with equipment, an outer barrel 9 is rotatably arranged in a mounting plate 8, the outer barrel 9 is of a conical structure, the outer barrel 9 rotates along a pointer, a first driving wheel 11 is fixedly welded at the lower end of the outer barrel 9, an inner barrel 10 is arranged in the outer barrel 9, the inner barrel 10 is of a conical structure, the upper end of the inner barrel 10 is rotatably connected with the mounting plate 8 through a bearing, the inner barrel 10 rotates anticlockwise, a second driving wheel 13 is fixedly welded at the outer part of the upper end of the inner barrel 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 in the first collecting box 20, two groups of toothed rings on the driving gears 21 are symmetrically distributed by taking the circle center of the driving gear 21 as the center, the included angle of the circle center of each group of toothed rings is seventy degrees, a reset gear 22 is arranged on one side of the driving gear 21, and the reset gear 22 is meshed with the toothed rings on the driving gear 21, the sieve plate 16 is arranged above the first collecting box 20, the air box 17 is arranged above the sieve plate 16, the rice bran absorption cover 26 is fixed on one side inside the air box 17 in a sealing mode, and the base 38 is arranged below the first collecting box 20.

Further, a rice inlet pipe 2 is arranged on one side of the upper end of the conveying device 1, the rice inlet pipe 2 is communicated with the conveying device 1, a rice outlet pipe 3 is arranged on one side of the lower end of the conveying device 1, the lower end of the rice outlet pipe 3 is arranged on one side of the upper end of the outer barrel 9, a first motor 4 is fixedly installed on one side of the conveying device 1, an output shaft of the first motor 4 is in transmission connection with the rotating shaft 29 through a coupler, the distance between the spiral blades 30 gradually decreases from one end close to the first motor 4 to the other end, the outer ends of the spiral blades 30 are attached to the inner wall of the conveying device 1, the distance between two adjacent spiral blades 30 gradually decreases along with the continuous rotation of the spiral blades 30, the rice is extruded and continuously accumulated, a frosted layer 31 is arranged on the surface of each spiral blade 30, a rough protruding structure on the surface of the frosted layer 31 is arranged, when the accumulated rice is contacted with the frosted layer 31, the rice bran on the surface is gradually separated under the action of friction, so that the primary treatment work is realized.

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 DC voltage-stabilized power supply's output electric connection, heat-conducting plate 7 is located between two adjacent electrothermal tube 6, and the inner wall of heat-conducting plate 7 is fixed through the silica gel adhesion with conveyor 1, electrothermal tube 6 switch-on power turns into heat energy with the electric energy, thereby produce the heat, and heat-conducting plate 7 is the metal material, with heat transfer to conveyor 1 inside under heat-conducting effect, along with continuous rising of inside temperature, constantly dry the moisture on rice surface, thereby reduce the degree of bonding of rice bran to the rice.

Further, a rotational 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 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 respectively fixed with the outer cylinder 9 and the inner cylinder 10 through adhesive adhesion, the fiber felt cloth 33 on the outer cylinder 9 and the fiber felt cloth 33 on the inner cylinder 10 are arranged in an inverse spiral manner, 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, an 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, and further make the outer cylinder 9 rotate with it synchronously, the output shaft of the third motor 14 drives the second driving wheel 13 to rotate counterclockwise under the transmission of the second driving belt 40, and then make the inner cylinder 10 rotate with it synchronously, because the diameter of the first driving wheel 11 is greater than the second driving wheel 13, the inner cylinder 10 is faster than the outer cylinder 9 at the rotating speed, and the surface of the fiber felt cloth 33 is a rough porous structure, in the continuous falling process of the rice, the rotating fiber felt cloth 33 continuously extrudes and rubs the rice, and finely polishes the surface of the rice, thereby finely separating the rice bran, and the fiber felt cloth 33 is soft, and will not damage the rice, with the continuous falling of the rice, the distance between the two fiber felt cloths 33 is also smaller and smaller, the polishing strength is also gradually improved, not only can separate the rice bran on the surface of the rice, but also can make the surface of the rice smooth and round, the quality of the rice is improved to a certain extent.

Further, both the front end and the rear end of the bottom of the sieve plate 16 are provided with a toothed groove plate 19, the toothed groove plate 19 and the sieve plate 16 are fixed through screws, two groups of toothed rings and a reset gear 22 on the driving gear 21 are 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, a limiting slider 36 is integrally arranged at the front end and the rear end of the sieve plate 16, the limiting slider 36 is connected with the first collecting box 20 in a sliding mode, when the toothed rings are in contact with the toothed groove plate 19, the toothed groove plate 19 drives the sieve plate 16 to move towards the right side, meshing of the toothed groove plate 19 is lost when the toothed ring rotates to a certain angle, the toothed groove plate 22 is meshed with the reset gear 22, the reset gear 22 is driven to move anticlockwise, and then the sieve plate 16 is driven to move towards the left side under the meshing of the reset gear 22 and the toothed groove plate 19, and the reciprocating motion is achieved.

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

Further, the inside fixed mounting of first collecting box 20 has the fan 23 that sweeps, and sweep fan 23 and use sieve 16 to be central symmetry distribution as the center, the top of sieve 16 is provided with bellows 17, and the upper end of bellows 17 passes through pipeline seal with urceolus 9 fixedly, be provided with bellows 18 between sieve 16 and the bellows 17, bellows 18 wraps up in the clearance of sieve 16 and bellows 17, and the upper and lower end of bellows 18 respectively with sieve 16 and bellows 17 fixed connection, open and sweep fan 23 and produce the air that the high speed flows, can blow away the small rice bran that mixes between the rice behind the rice contact to the rice on sieve 16, make it float to inside bellows 17 on it.

Further, negative-pressure air fan 28 is installed to one side of base 38, negative-pressure air fan 28's one end is sealed to be fixed with second collecting box 27, it is sealed fixed through connecting pipe 15 between second collecting box 27 and the rice bran absorption cover 26, open negative-pressure air fan 28 and discharge the inside air of second collecting box 27 fast, make the outside air of rice bran absorption cover 26 constantly supply negative-pressure air fan 28 through connecting pipe 15 simultaneously, form higher pressure differential with the external world, so the outside rice bran piece of rice bran absorption cover 26 is inhaled in second collecting box 27 along with the air, thereby realize the quick collection to the come-up rice bran piece, in whole process, the rice bran of relatively great mass passes through sieve 16 and gets into first collecting box 20, the rice bran piece of relatively less mass passes through the rice bran absorption cover and gets into second collecting box 27, the quick processing to the rice bran has been realized.

Further, electric putter 25 is installed in the intermediate position department of base 38, and electric putter 25 installs 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 the second to rotate seat 41, and the lower extreme that the second rotated seat 41 rotates with electric putter 25 to be connected, electric putter 25 can realize the holistic slope of sieve 16, so the rice slides towards one side under the action of gravity, be convenient for follow-up packing processing.

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

step one, hulled rice enters the conveying device 1 through the rice inlet pipe 2, the rice is moved through the rotation of the spiral blades 30, meanwhile, the drying device 5 is started to transfer heat to 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 the rice outlet pipe 3;

step two, after the rice which is primarily separated by drying 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 rotate reversely, and in the continuous falling process of the rice, the rotating middle fiber felt 33 continuously extrudes and rubs the rice to finely grind the surface of the rice;

step three, the rice finely ground by the inner barrel 10 falls onto the sieve plate 16, and forms high-frequency reciprocating motion of the sieve plate 16 along with the high-speed rotation of the fourth motor 37, so as to separate rice bran in the rice;

step four, in the process of shaking the bran on the sieve plate 16, the blowing fan 23 is started to generate high-speed flowing air, the air can blow away the micro bran doped between the rice after contacting the rice on the sieve plate 16, so that the micro bran can float to the inside of the air box 17, meanwhile, the negative pressure fan is started, the bran scraps outside the bran absorption cover 26 are sucked into the second collection box 27 along with the air, and therefore the quick collection of the floating bran scraps is realized;

and step five, starting the electric push rod 25 to lift the rear end of the first collecting box 20, simultaneously starting the stepping motor 35, and opening the baffle 34, so that the rice gradually slides to the outside of the self-service fresh rice machine under the shaking action of the sieve plate 16 to carry out integral packaging.

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 attributes 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 (10)

1. The utility model provides a rice processing chaff device based on self-service bright rice machine, includes conveyor (1), its characterized in that: the utility model discloses a conveyor belt, including conveyor (1), the internally mounted of conveyor (1) has rotation axis (29), the outside an organic whole of rotation axis (29) is provided with helical blade (30), and helical blade (30) are provided with ten, the outside of helical blade (30) all is provided with dull polish layer (31), and dull polish layer (31) and helical blade (30) adhesion are fixed, conveyor's (1) outside is provided with drying device (5), and drying device (5) and conveyor (1) pass through the bolt fastening, conveyor's (1) below is provided with mounting panel (8), the internal rotation of mounting panel (8) installs urceolus (9), and urceolus (9) are the toper structure, the lower extreme welded fastening of urceolus (9) has first drive wheel (11), the internally mounted of urceolus (9) has inner tube (10), and inner tube (10) are the toper structure, the upper end of the inner cylinder (10) is rotatably connected with the mounting plate (8) through a bearing, a second transmission wheel (13) is fixedly welded on the outer portion 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 inner portion of the first collecting box (20), two groups of toothed rings on the driving gears (21) are distributed in a central symmetry mode by taking the circle center of the driving gears (21) as the center, the included angle of the circle center of each group of toothed rings is seventy degrees, a reset gear (22) is arranged on one side of each driving gear (21), the reset gear (22) is meshed with the toothed rings on the driving gears (21) and connected, a sieve plate (16) is arranged above the first collecting box (20), a bellows (17) is arranged above the sieve plate (16), and a rice bran absorbing cover (26) is fixedly sealed on one side of the inner portion of each bellows (17), a base (38) is arranged below the first collecting box (20).

2. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: one side of conveyor (1) upper end is provided with the rice and advances pipe (2), and the rice advances pipe (2) and is linked together with conveyor (1), 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 of first motor (4) is connected through the shaft coupling transmission with rotation axis (29), interval between helical blade (30) is steadilyd decrease gradually 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 sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: drying device (5) comprise electrothermal tube (6) and heat-conducting plate (7), electrothermal tube (6) are provided with a plurality of, and the input of electrothermal tube (6) and DC voltage-stabilized power's output electric connection, heat-conducting plate (7) are located between two adjacent electrothermal tube (6), and the inner wall of heat-conducting plate (7) is fixed through the silica gel adhesion with conveyor (1).

4. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: be provided with between urceolus (9) and inner tube (10) and grind chamber (32) soon, interval between urceolus (9) and inner tube (10) is by the one end that is close to conveyor (1) towards the other end taper down, the inner wall of urceolus (9) all is provided with fibre felt cloth (33) with the outer wall of inner tube (10), and fibre felt cloth (33) are fixed through the viscose adhesion with urceolus (9) and inner tube (10) respectively, fibre felt cloth (33) are the reciprocal spiral setting of fibre felt cloth (33) on urceolus (9) and inner tube (10), the inside lower extreme fixed mounting of mounting panel (8) has second motor (12), and the output of second motor (12) is main to be connected through first drive belt (39) transmission with first drive wheel (11), the inside upper end fixed mounting of mounting panel (8) has third motor (14), and the output shaft of third motor (14) is connected through second drive belt (40) transmission with second drive wheel (13).

5. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: the front end and the rear end of sieve (16) bottom all are provided with fluted plate (19), and fluted plate (19) pass through the screw fixation with sieve (16), two sets of rings on drive gear (21) and reset gear (22) all are connected with fluted plate (19) meshing, fourth motor (37) are installed to the rear end of drive gear (21), and the lower extreme of fourth motor (37) passes through bolt fastening with first collecting box (20), the front end and the rear end homogeneous body of sieve (16) is provided with stop block (36), and stop block (36) and first collecting box (20) sliding connection.

6. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 5, wherein: baffle (34) are installed to one side of sieve (16), and baffle (34) rotate with sieve (16) and are connected, one side fixed mounting of sieve (16) front end has step motor (35), and the output shaft and baffle (34) fixed connection of step motor (35).

7. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: the inside fixed mounting of first collecting box (20) has and sweeps fan (23), and sweeps fan (23) and uses sieve (16) to be central symmetric distribution as the center, the top of sieve (16) is provided with bellows (17), and the upper end of bellows (17) passes through the pipe seal with urceolus (9) and fixes, be provided with ripple cover (18) between sieve (16) and bellows (17), ripple cover (18) parcel in the clearance of sieve (16) and bellows (17), and the upper and lower end of ripple cover (18) respectively with sieve (16) and bellows (17) fixed connection.

8. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: a negative pressure fan (28) is installed on one side of the base (38), a second collecting box (27) is fixed to one end of the negative pressure fan (28) in a sealing mode, and the second collecting box (27) and the rice bran absorbing cover (26) are fixed in a sealing mode through a connecting pipe (15).

9. The rice processing bran sieving device based on the self-service fresh rice machine as claimed in claim 1, characterized in that: electric putter (25) are installed to the intermediate position department of base (38), and electric putter (25) install 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) and is connected, the opposite side slidable mounting of first collecting box (20) bottom has the second to rotate seat (41), and the lower extreme of second rotation seat (41) rotates with electric putter (25) and is connected.

10. A bran screening method of a rice processing bran screening device based on the self-service fresh rice machine as claimed in any one of claims 1-9, characterized in that: the method comprises the following steps:

step one, hulled rice enters the conveying device (1) through a rice inlet pipe (2), the rice is moved through rotation of a spiral blade (30), meanwhile, a drying device (5) is started, heat is transferred to 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 which is primarily separated by drying enters a rotary grinding cavity (32), the rice slowly descends from a gap between an outer cylinder (9) and an inner cylinder (10), a second motor (12) and a third motor (14) are started to enable the outer cylinder (9) and the inner cylinder (10) to rotate reversely, and a rotating middle fiber felt cloth (33) continuously extrudes and rubs the rice in the continuous falling process of the rice to finely grind the surface of the rice;

step three, the rice finely ground by the inner barrel (10) falls onto the sieve plate (16), and forms high-frequency reciprocating motion of the sieve plate (16) along with the high-speed rotation of the fourth motor (37) to sieve rice bran in the rice;

step four, in the process that the sieve plate (16) shakes the bran, the blowing fan (23) is started to generate high-speed flowing air, the air can blow away the micro bran doped between the rice after contacting the rice on the sieve plate (16) to enable the rice to float upwards to the inside of the air box (17), meanwhile, the negative pressure fan is started, rice bran fragments outside the rice bran absorption cover (26) are sucked into the second collection box (27) along with the air, and therefore the quick collection of the floating rice bran fragments is achieved;

and step five, starting the electric push rod (25) to lift the rear end of the first collection box (20), simultaneously starting the stepping motor (35), opening the baffle (34), and gradually sliding the rice to the outside of the self-service fresh rice machine under the shaking action of the sieve plate (16) to carry out integral packaging.

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