CN112642512B

CN112642512B - Novel rice mill

Info

Publication number: CN112642512B
Application number: CN202011597661.9A
Authority: CN
Inventors: 黎尔素; 杨洋; 潘炼红; 牟中杰; 王文佳
Original assignee: Hunan Xiangliang Machinery Manufacturing Co ltd
Current assignee: Hunan Xiangliang Machinery Manufacturing Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-05-31
Anticipated expiration: 2040-12-29
Also published as: CN112642512A

Abstract

The invention discloses a novel rice mill, which comprises: a frame supported on the ground and a rice milling chamber arranged on the frame, wherein a rice milling channel for rice grains to flow is arranged in the rice milling chamber. The feed end intercommunication of husk rice passageway has feeding ration feeder, and feeding ration feeder's feed end intercommunication has the feeder hopper, and feeding ration feeder is arranged in making the brown rice ration of treating grinding of splendid attire in the feeder hopper give the husk rice passageway. The discharge end of the rice milling channel is communicated with a discharge quantitative feeder which is used for quantitatively discharging polished rice formed by milling the brown rice in the rice milling channel. Still be equipped with the husk rice main shaft in the husk rice passageway, the husk rice main shaft is arranged in the grain of rice in the husk rice passageway by its feed end to discharge end direction propelling movement, grinds the grain of rice in the husk rice passageway simultaneously. The novel rice mill provided by the invention has the advantages that the amount of the brown rice fed into the rice milling channel is controllable, continuous, uniform and stable, so that the whitening quality of the brown rice in the rice milling channel can be improved, and the labor intensity of workers is effectively reduced.

Description

Novel rice mill

Technical Field

The invention relates to the technical field of rice mills, in particular to a novel rice mill.

Background

The feeder hopper of the traditional rice mill is provided with an inserting plate, and the flow of brown rice entering a rice milling chamber is adjusted by manually inserting and pulling the inserting plate. The flow of the brown rice affects the rice milling effect, the rice milling condition of the finished rice at the discharge port is observed by naked eyes, and the inserting plate is manually inserted and pulled to control the amount of the brown rice entering the rice milling chamber. The adjusting mode can not accurately measure the amount of the brown rice entering the rice milling chamber, and the milling effect can only depend on the operation experience of an operator, so that the milling quality of the brown rice is unstable, the adjusting operation is troublesome, and during the adjusting operation, the brown rice which is not milled is easily mixed into the rice milling, and the milling quality is influenced.

The rice milling chamber is an important part of the rice milling machine, and rice grains roll in the rice milling chamber and move forward to rub and collide with a sieve sheet of the rice milling chamber so as to break and wipe off the cortex on the surface layer of the brown rice. The inner wall of a traditional rice milling chamber is smooth, the friction force between rice grains and the inner wall of the rice milling chamber is small, and the probability of the rice grains rolling is small; the rice grains close to the rice milling main shaft are rolled more easily under the action of the spiral propeller and the rice milling roller, so that the friction of the rice grains in the flow passage of the rice milling chamber is uneven, the rice grains with less friction are milled insufficiently, the rice grains with more friction are milled excessively, and the rice quality and the rice output rate are reduced. In the prior art, the rice milling chamber adopts the screen with the convex hulls on the inner wall, but the thickness of the screen is thin, the convex hulls of the screen are worn quickly under the friction and impact of rice grains, and the screen is broken, so that the screen needs to be replaced frequently, and the problem of uneven grinding of the rice grains still exists.

The rice milling main shaft is a core part of the rice milling machine, provides friction force and forward propelling force for milling the brown rice and enables the brown rice to roll in the rice milling chamber. The traditional rice milling main shaft consists of a main shaft, a spiral propeller and a rice milling roller. After the brown rice enters the rice milling chamber, the spiral propeller pushes the brown rice to the discharging end and rolls the brown rice; the rice milling roller pushes the brown rice forwards and rubs the brown rice, rice grains collide with each other, the rice grains collide with the sieve sheet, and the cortex on the surface layer of the brown rice is broken and wiped off. The traditional rice milling main shaft has the following defects: along with the grain of rice removes to the discharge end, the forward propulsive force that the grain of rice received is more and more littleer, and the grain of rice overstocks gradually, and the clearance between the grain of rice is more and more littleer, frictional force increase between the grain of rice, and the rice milling pressure increase, after exceeding the intensity of the grain of rice, the grain of rice is broken, forms broken rice, has reduced out rice rate. From the practical use condition, the tail end of the rice milling roller is worn most rapidly and seriously, which proves that the rice grains are subjected to the maximum friction force and the rice milling pressure.

Disclosure of Invention

The invention provides a novel rice mill, which aims to solve the technical problems of unstable brown rice whitening quality and troublesome adjustment operation of the existing rice mill.

The technical scheme adopted by the invention is as follows:

a novel rice mill, comprising: the rice milling device comprises a frame supported on the ground and a rice milling chamber arranged on the frame, wherein a rice milling channel for rice grains to flow is arranged in the rice milling chamber; the feeding end of the rice milling channel is communicated with a feeding quantitative feeder, the feeding end of the feeding quantitative feeder is communicated with a feeding hopper, and the feeding quantitative feeder is used for quantitatively feeding the brown rice to be milled, which is contained in the feeding hopper, into the rice milling channel; the discharge end of the rice milling channel is communicated with a discharge quantitative feeder which is used for quantitatively discharging polished rice formed by milling the brown rice in the rice milling channel; still be equipped with the husk rice main shaft in the husk rice passageway, the husk rice main shaft is arranged in the grain of rice in the husk rice passageway by its feed end to discharge end direction propelling movement, grinds the grain of rice in the husk rice passageway simultaneously.

Furthermore, the feeding quantitative feeder comprises an outer shell which is arranged on the frame and is provided with an installation inner cavity, a quantitative feeding rotor which is used for enabling the brown rice contained in the feed hopper to be quantitatively fed into the rice milling channel, and a driving member which is used for driving the quantitative feeding rotor to rotate; a feed inlet and a discharge outlet are arranged on the outer shell, the feed inlet is communicated with the discharge end of the feed hopper, and the discharge outlet is communicated with the rice milling channel; the quantitative feeding rotor is positioned in the mounting inner cavity and is rotatably supported on the outer shell, and the driving end of the quantitative feeding rotor extends out of the outer shell and then is connected with a driving component arranged on the rack; the peripheral surface of the quantitative feeding rotor is provided with a material guide cavity which is arranged along the circumferential direction of the quantitative feeding rotor in sequence and is concave inwards, and the material guide cavity is alternately communicated with the feeding hole and the discharging hole under the rotation action of the quantitative feeding rotor so as to guide brown rice received by the feeding hole to the discharging hole for blanking.

Furthermore, the outer shell is in a hollow shaft cylinder shape with two closed ends; the quantitative feeding rotor comprises a mounting rotating shaft and a quantitative rotor; the installation rotating shaft is arranged along the axial direction of the outer shell, two ends of the installation rotating shaft are rotatably supported on end plates at two ends of the outer shell, and the driving end of the installation rotating shaft extends out of the end plate at the corresponding side and then is connected with the driving component; the quantitative rotor is arranged on the outer circle of the installation rotating shaft, and the material guide cavity is arranged on the circumference of the quantitative rotor.

Furthermore, the rice milling chamber comprises an installation frame assembly connected with the rack, a plurality of hollow cylindrical sieve cylinders and a plurality of annular adjusting rings are arranged on the installation frame assembly, the sieve cylinders are sequentially arranged at intervals along the flowing direction of rice grains, and each adjusting ring is arranged between every two adjacent sieve cylinders, so that inner channels of the sieve cylinders and inner channels of the adjusting rings are connected to form a rice milling channel extending along the flowing direction of the rice grains; a sieve section of thick bamboo is arranged in grinding with the rice milling main shaft cooperation to the grain of rice in the husk rice passageway, and the adjusting ring is arranged in changing the flow area of husk rice passageway with the cooperation of husk rice main shaft, and then the grain of rice that the disturbance flows to make the grain of rice roll more easily, the friction that the grain of rice received is more even with the collision.

Furthermore, the inner ring surface of the adjusting ring comprises a first acting ring surface and a second acting ring surface which are sequentially arranged along the flowing direction of rice grains and are connected with each other; the first action ring surface is used for being matched with a rice milling roller of a rice milling spindle so as to gradually and gently change the flow area of a rice milling channel in the flowing direction of rice grains, further disturb the flowing rice grains and gradually and gently increase the rice milling pressure of the rice grains; the second action ring surface is used for matching with a pushing roller of the rice milling main shaft so as to enable the flow area of the rice milling channel to be suddenly changed in the rice grain flowing direction, further disturb the flowing rice grain flow and enable the rice milling pressure of the rice grains to be rapidly released.

Further, the rice milling chamber further comprises an axial adjustment member for adjusting the position of the adjustment ring in the axial direction, the axial adjustment member comprising: the locking device comprises an axial adjusting rod arranged on the mounting frame assembly and a first locking nut which is arranged on the excircle of the axial adjusting rod and is in threaded connection with the axial adjusting rod; the axial adjusting rod penetrates through the adjusting ring along the axial direction and is in threaded connection with the adjusting ring.

Further, the rice milling chamber also comprises a rice cutter block for disturbing the rice grain flow flowing in the screen drum; the connecting end of the rice knife block is connected with the mounting frame assembly, and the turbulent flow end of the rice knife block extends into the sieve cylinder which is correspondingly arranged.

Furthermore, the rice milling main shaft comprises a mounting main shaft which is axially arranged along the rice milling channel, a plurality of groups of pushing rollers which are used for pushing the rice grains from the feeding end to the discharging end of the rice milling channel, and a plurality of groups of rice milling rollers which are used for husking and whitening the rice grains and pushing the rice grains along the rice grain pushing direction; the multiple groups of pushing rollers and the multiple groups of rice milling rollers are respectively arranged on the outer circle of the mounting main shaft, so that rice milling pressure at each position in the rice milling chamber tends to be balanced when rice grains are subjected to rough opening and white milling under the matching action.

Furthermore, multiple groups of pushing rollers and multiple groups of rice milling rollers are sequentially and alternately arranged along the axial direction of the mounting main shaft, and the end parts of the adjacent pushing rollers and the end parts of the adjacent rice milling rollers are mutually abutted.

Furthermore, the pushing rollers are spiral pushing rollers provided with external threads extending spirally along the axial direction on the outer wall surface, and a plurality of groups of spiral pushing rollers are sequentially arranged at intervals along the axial direction of the mounting main shaft; the rice milling roller comprises at least one spiral rice milling roller which is provided with an external thread extending spirally along the axial direction on the outer wall surface, wherein one spiral rice milling roller is arranged close to a first spiral propelling roller positioned on the rice grain propelling direction and positioned at the downstream of the first spiral propelling roller.

The invention has the following beneficial effects:

in the novel rice mill, the brown rice is piled up separately, separated and continuously conveyed accurately and quantitatively under the action of the feeding quantitative feeder, so that the amount of the brown rice fed into the rice milling channel is controllable, continuous, uniform and stable, the milling quality of the brown rice in the rice milling channel can be improved, the amount of the brown rice which directly enters the rice milling chamber due to non-milling in the process of adjusting the inserting plate in the prior art is reduced, the labor intensity of workers is effectively reduced, the amount of the brown rice fed into the rice milling chamber in unit time can be changed by controlling the working efficiency of the feeding quantitative feeder, the milling quality of the brown rice is controllable, the adjusting operation is simple, and the adaptability of the rice mill is improved; similarly, through the arrangement of the discharge quantitative feeder, the amount of the polished rice led out of the rice mill is controllable, continuous, uniform and stable, so that the whitening quality of the brown rice in the rice milling channel can be improved, the amount of the polished rice led out of the rice mill in unit time can be changed by controlling the working efficiency of the discharge quantitative feeder, the whitening quality of the polished rice is controllable, the adjusting operation is simple, and the adaptability of the rice mill is improved.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic sectional front view of a novel rice mill in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional front view of the feed doser of FIG. 2;

FIG. 4 is a schematic sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic sectional end view of the rice milling chamber of FIG. 1;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a cross-sectional front view of the adjustment ring of FIG. 5;

fig. 8 is a schematic space structure diagram of the rice milling spindle in fig. 1.

Description of the drawings

10. A frame; 20. a feed hopper; 30. a feed doser; 31. an outer housing; 311. a feed inlet; 312. a discharge port; 32. a dosing rotor; 320. a material guiding cavity; 321. installing a rotating shaft; 322. a dosing rotor; 3221. installing a sleeve; 3222. a side end plate; 3223. a separator plate group; 33. a drive member; 34. a material guide pipe; 40. a rice milling chamber; 401. a rice milling channel; 41. a mounting bracket assembly; 411. an end mounting bracket; 412. an intermediate mounting frame; 42. a screen cylinder; 43. an adjustment ring; 431. a first active annulus; 432. a second active annulus; 44. an axial adjustment member; 441. an axial adjusting rod; 442. a first lock nut; 45. a rice knife block; 46. a radial adjustment member; 461. a radial adjusting rod; 462. a second lock nut; 50. a rice milling main shaft; 51. installing a main shaft; 52. a helical feed roller; 53. a spiral rice milling roller; 54. a groove rice milling roller; 541. a rice milling groove; 55. brushing a rice roller; 551. brushing rice strips; 56. a vent hole; 60. a discharge quantitative feeder.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a novel rice mill comprising: a frame 10 supported on the ground, a rice milling chamber 40 arranged on the frame 10, a rice milling channel 401 for rice grains to flow is arranged in the rice milling chamber 40. The feeding end of the rice milling channel 401 is communicated with a feeding quantitative feeder 30, the feeding end of the feeding quantitative feeder 30 is communicated with a feeding hopper 20, and the feeding quantitative feeder 30 is used for enabling brown rice to be milled contained in the feeding hopper 20 to be quantitatively fed into the rice milling channel 401. The discharge end of the milling passage 401 is communicated with a discharge quantitative feeder 60, and the discharge quantitative feeder 60 is used for quantitatively discharging the polished rice formed by milling the brown rice in the milling passage 401. Still be equipped with husk rice main shaft 50 in the husk rice passageway 401, husk rice main shaft 50 is used for the grain of rice in the husk rice passageway 401 by its feed end to discharge end direction propelling movement, grinds the grain of rice in the husk rice passageway 401 simultaneously.

When the novel rice mill works, brown rice to be milled firstly enters the feed hopper 20, then the brown rice is quantitatively fed into the milling channel 401 of the milling chamber 40 from the feed hopper 20 under the action of the feed quantitative feeder 30, rice grains in the milling channel 401 are pushed from the feed end to the discharge end of the milling channel 401 under the action of the milling spindle 60, meanwhile, the rice grains in the milling channel 401 are milled and milled into polished rice under the action of the milling spindle 60, and the polished rice at the discharge end of the milling channel 401 is quantitatively and outwards fed under the action of the discharge quantitative feeder 60, so that the milling process of the brown rice is realized.

In the novel rice mill, the brown rice is piled up separately, separated and continuously conveyed accurately and quantitatively under the action of the feeding quantitative feeder 30, so that the amount of the brown rice fed into the rice milling channel 401 is controllable, continuous, uniform and stable, the milling quality of the brown rice in the rice milling channel 401 can be improved, the amount of the brown rice which directly enters the rice milling chamber due to non-milling in the process of adjusting the inserting plate in the prior art is reduced, the labor intensity of workers is effectively reduced, the working efficiency of the feeding quantitative feeder 30 can be controlled, the amount of the brown rice fed into the rice milling chamber 40 in unit time can be changed, the milling quality of the brown rice is controllable, the adjusting operation is simple, and the adaptability of the rice mill is improved; similarly, the quantity of the polished rice led out of the rice mill is controllable, continuous, uniform and stable through the arrangement of the discharge quantitative feeder 60, so that the whitening quality of the brown rice in the rice milling channel 401 can be improved, the quantity of the polished rice led out of the rice mill in unit time can be changed through controlling the working efficiency of the discharge quantitative feeder 60, the whitening quality of the polished rice is controllable, the adjusting operation is simple, and the adaptability of the rice mill is improved.

Alternatively, as shown in fig. 2, the feeding doser 30 includes an outer housing 31 provided on the housing 10 and having an inner cavity, a dosing rotor 32 for dosing the brown rice contained in the hopper 20 into the milling passage 401, and a driving member 33 for driving the dosing rotor 32 to rotate. The outer shell 31 is provided with a feed inlet 311 and a discharge outlet 312, the feed inlet 311 is communicated with the discharge end of the feed hopper 20, and the discharge outlet 312 is communicated with the rice milling channel 401. The dosing rotor 32 is located in the mounting cavity and rotatably supported on the outer housing 31, and a driving end of the dosing rotor 32 extends out of the outer housing 31 and is connected to a driving member 33 provided on the frame 10. The outer circumferential surface of the dosing rotor 32 is provided with a guide cavity 320 which is arranged along the circumferential direction and is concave inwards, and the guide cavity 320 is alternately communicated with the feed inlet 311 and the discharge outlet 312 under the rotation action of the dosing rotor 32 so as to guide the brown rice received by the feed inlet 311 to the discharge outlet 312 for blanking.

When the rice mill of the invention works, the driving member 33 drives the quantitative feeding rotor 32 to rotate, so that the guide cavity 320 is alternately communicated with the feed inlet 311 and the discharge outlet 312 on the outer shell 31, the brown rice fed into the feed hopper 20 enters the guide cavity 320 at the corresponding position from the feed hopper 20 and the feed inlet 311 in sequence, then the guide cavity 320 rotates to the discharge outlet 312 under the driving of the driving member 33, the brown rice in the guide cavity 320 enters the rice milling chamber 40 of the rice mill from the discharge outlet 312, so that the brown rice is conveyed from the feed inlet 311 to the discharge outlet 312, and the brown rice is piled up, separated and accurately and continuously conveyed through the arrangement of the rotating guide cavities 320, the amount of the brown rice fed into the rice milling chamber 40 is controllable, continuous, uniform and stable, therefore, the milling quality of the brown rice can be improved, and the amount of the brown rice directly entering the rice milling chamber due to non-milling in the process of the adjusting inserting plate is reduced, the labor intensity of workers is effectively reduced, the amount of the brown rice fed into the rice milling chamber 40 in unit time can be changed by controlling the driving member 33, the milling quality of the brown rice is controllable, the adjusting operation is simple, and the adaptability of the rice mill is improved.

Alternatively, as shown in fig. 3 and 4, the outer shell 31 has a hollow cylindrical shape with both ends closed. The dosing rotor 32 comprises a mounting shaft 321 and a dosing rotor 322. The installation rotating shaft 321 is arranged along the axial direction of the outer shell 31, two ends of the installation rotating shaft 321 are rotatably supported on end plates at two ends of the outer shell 31, and a driving end of the installation rotating shaft 321 extends out of the end plate at the corresponding side and then is connected with the driving member 33. In this alternative, the both ends of installation pivot 321 rotate respectively through the bearing and install on the end plate at shell body 31 both ends, and still be equipped with between installation pivot 321 and the end plate and be used for sealed sealing washer, and the sealing washer is two, locates the both sides of corresponding bearing separately. The quantitative rotor 322 is installed on the outer circumference of the installation rotating shaft 321, and the material guide cavity 320 is arranged on the circumference of the quantitative rotor 322. In this alternative, the driving member 33 includes a variable frequency motor, a speed reducer connected to an output shaft of the variable frequency motor, and a belt pulley member connected to the speed reducer, and the driving end of the mounting shaft 321 is connected to the belt pulley member. When the quantitative rotor 322 works, the variable frequency motor drives the speed reducer to rotate, the speed reducer drives the belt pulley component to move, the belt pulley component drives the installation rotating shaft 321 to rotate, and the installation rotating shaft 321 drives the quantitative rotor 322 to synchronously rotate.

In this alternative, as shown in fig. 3 and 4, the quantitative rotor 322 includes a mounting sleeve 3221 sleeved on the outer circumference of the mounting rotating shaft 321, side end plates 3222 mounted on the outer circumference of the mounting rotating shaft 321 and respectively disposed at two ends of the mounting sleeve 3221, and a plurality of sets of partition plate groups 3223. Specifically, the mounting rotating shaft 321 and the mounting sleeve 3221 are integrally connected by a connecting key; alternatively, the mounting shaft 321 and the mounting sleeve 3221 may be integrally connected by a concave-convex structure disposed therebetween. The plurality of groups of partition plate groups 3223 are radially arranged on the periphery of the mounting sleeve 3221, the lower edge of each partition plate group 3223 is fixed to the outer wall surface of the mounting sleeve 3221, the edges on two sides of each partition plate are fixed to the side end plates 3222 on the corresponding side, and the material guiding cavity 320 is defined by the mounting sleeve 3221, the two side end plates 3222 and the two adjacent partition plate groups 3223. Preferably, the plurality of sets of partition plate groups 3223 are uniformly arranged along the circumferential direction of the mounting sleeve 3221 at intervals, so that the material guiding cavity 320 defined by the mounting sleeve 3221, the two side end plates 3222 and the two adjacent sets of partition plate groups 3223 is sequentially and uniformly arranged along the circumferential direction of the feeding quantitative feeder 30, and the brown rice is uniformly conveyed through the material guiding cavity 320, so as to prevent the brown rice from being jammed in the outer shell 31 due to non-uniform distribution of the material guiding cavity 320.

Preferably, as shown in fig. 3, the partition plate group 3223 includes partition plates, and circumferential contact plate members. The partition plates are arranged along the axial direction of the mounting sleeve 3221, the lower edges of the partition plates are welded and fixed with the outer circumferential surface of the mounting sleeve 3221, and the upper edges of the partition plates extend towards the inner circumferential surface of the outer shell 31 in the radial direction. The circumference touches the plate along the length direction detachable connection on the second side of division board, and the circumference touches the soft butt of inner annular face of plate and shell body 31. The circumferential contact plate is in soft butt joint with the inner ring surface of the outer shell 31, so that the brown rice can be effectively prevented from being clamped in a gap between the quantitative feeding rotor 32 and the outer shell 31, the situation that the brown rice in the feeding quantitative feeder 30 is clamped and jammed is prevented, the rice milling chamber 40 is smooth in feeding, the feeding is uniform and continuous, the feeding efficiency and the feeding quality are improved, the jam does not need to be cleaned frequently, the labor intensity of operators is reduced, and time and labor are saved; on the other hand, the rigid contact between the dosing rotor 32 and the outer housing 31 is effectively prevented, thereby improving the working condition of the feeding doser 30 and prolonging the service life of the feeding doser 30.

Further, the first embodiment of circumference touch panel spare, as shown in fig. 3, circumference touch panel spare includes a circumference touch panel, and circumference touch panel connects on the positive facade of division board orientation direction of rotation, and in this scheme, the sealed contact situation of circumference touch panel and the interior annular surface of shell body 31 is good, not only can prevent effectively that brown rice from blocking in feeding doser 30, and can prevent effectively that the raise dust that the husk rice produced in husk rice room 40 from passing through discharge gate 312 and feed inlet 311 back from emerging outward. Or alternatively

The second embodiment of circumference touch plate, not shown in the drawing, circumference touch plate includes two circumference touch panels, the both sides of division board are located to two circumference touch panels branch, and the butt limit with the interior anchor ring butt of shell body 31 on at least one circumference touch panel is the brush limit, the butt limit with the interior anchor ring butt of shell body 31 on the circumference touch panel is for cutting the brush form limit that the processing formed along length direction extension, guarantee under the promotion of guide chamber 320 leakproofness, reduce the friction of butt limit and shell body 31 interior anchor ring, and then prolong feeding doser 30's life, and can make installation pivot 321 even running.

In the alternative, the circumferential touch plate is a leather belt, a nylon belt or a rubber belt, and has the advantages of simple material taking, easy preparation and forming, low operation cost and convenient replacement. In a specific embodiment of this alternative, the circumferential contact plate is detachably fixed to the partition plate by means of locking screws or locking bolts.

In the present invention, the structure of the discharge doser 60 is the same as that of the feed doser 30, and will not be described again; and the feed end of the discharge quantitative feeder 60 is communicated with the discharge end of the rice milling channel 401, and the discharge end of the discharge quantitative feeder 60 is connected with a discharge guide plate.

Preferably, a wear-resistant layer for wear resistance is paved on the wall surface of the installation inner cavity, or a wear-resistant coating for wear resistance is coated on the wall surface of the installation inner cavity. In the preferred scheme, the wear-resistant layer or the wear-resistant coating is a conventional wear-resistant material in the prior art, and the wall surface of the mounting inner cavity is provided with the wear-resistant layer or the wear-resistant coating, so that the friction between the partition plate group 3223 and the wall surface of the mounting inner cavity can be effectively reduced, the service life of the discharge valve is further prolonged, and the use condition is improved.

Preferably, the outer shell 31 is further provided with an operation opening communicated with the installation inner cavity, the operation opening is provided with a blocking cover for blocking the operation opening, and the operation opening is convenient for an operator to operate the thin rod to insert into the outer shell 31, so that the possible brown rice blocking condition in the installation inner cavity is solved.

Alternatively, as shown in fig. 2, the feed opening 311 and the discharge opening 312 are both disposed on the outer annular wall of the outer shell 31, the feed opening 311 is located on the upper side of the outer shell 31, and the discharge opening 312 is located on the lower side of the outer shell 31. The feeding hole 311 is an inverted cone-shaped opening with the caliber gradually increasing along the feeding direction to prevent the brown rice in the guiding cavity 320 from reversely flowing out of the feeding hole 311 under the mutual pushing action. The discharge hole 312 is a tapered hole whose diameter is gradually reduced along the discharge direction so that the brown rice in the material guide chamber 320 smoothly falls into the rice milling chamber 40.

Optionally, as shown in FIG. 2, the feed doser 30 further comprises a guide tube 34 for guiding the material. The material guiding pipe 34 is made of transparent material, the feeding end of the material guiding pipe 34 is communicated with the material outlet 312, and the material outlet end of the material guiding pipe 34 is communicated with the rice milling chamber 40. The guide tube 34 is used for an external operator to observe the feeding condition of the brown rice in the feeding hopper 30 so as to adjust the rotation speed of the driving member 33 at a proper time.

Alternatively, as shown in fig. 5 and 6, the rice milling chamber 40 includes a mounting frame assembly 41 connected to the frame 10, the mounting frame assembly 41 is provided with a plurality of hollow cylindrical sieve cylinders 42 and a plurality of annular adjusting rings 43, the sieve cylinders 42 are sequentially arranged at intervals along the flow direction of rice grains, and each adjusting ring 43 is arranged between every two adjacent sieve cylinders 42, so that the inner passages of the sieve cylinders 42 and the inner passages of the adjusting rings 43 are connected to form a rice milling passage 401 extending along the flow direction of rice grains. Sieve cylinder 42 is arranged in grinding with the rice milling main shaft cooperation to the grain of rice in rice milling passageway 401, and adjusting ring 43 is used for changing the flow area of rice milling passageway 401 with the cooperation of rice milling main shaft, and then the grain of rice that the disturbance flows to make the grain of rice more roll easily, the friction that the grain of rice received and bump more evenly.

In the rice milling chamber, the number of the screen cylinders 42 is multiple, and the screen cylinders 42 are sequentially arranged at intervals along the flowing direction of rice grains, compared with the prior art that the screen cylinders are of an integral structure arranged along the flowing direction of the rice grains, the rice milling chamber has the advantages that the screen cylinders 42 are easy to disassemble and assemble, the replacement operation is simple, only the damaged screen cylinder 42 needs to be replaced, and the cost for replacing the screen cylinders is low; on the other hand, lay between per two adjacent sieve section of thick bamboo 42 and connect adjusting ring 43 between them, adjusting ring 43 sets up simply, and the mating reaction through the husk rice main shaft of laying in adjusting ring 43 and the husk rice passageway 401, change the flow area of husk rice passageway 401, and then flow the disturbance to the grain of rice that flows in the husk rice passageway 401, make the grain of rice take place more and roll and collide, the friction that makes the grain of rice receive, the collision is more even, it is not enough with the grinding to reduce the cross of grain of rice, the grain of rice whitening effect is better, and then improve finished rice's quality and the rate of going out rice.

Alternatively, as shown in FIGS. 6 and 7, the inner annular surface of the adjustment ring 43 comprises a first active ring surface 431 and a second active ring surface 432, which are arranged and connected in series along the rice grain flow direction. First effect anchor ring 431 is used for cooperating with the husk rice roller of husk rice main shaft to progressively gently change the flow area of husk rice passageway 401 on the grain of rice flow direction, and then the grain of rice that the disturbance flows, make the grain of rice take place more roll and collide, the friction that makes the grain of rice receive, the collision is more even, it is insufficient to reduce the cross of grain of rice to grind and grind, and the husk rice pressure that makes the grain of rice increases progressively gently, and then when the reinforcing whitening effect, can effectively reduce the broken rice rate. Second effect anchor face 432 is used for cooperating with the propelling movement roller of husk rice main shaft to make the area of circulation sudden change of husk rice passageway 401 in the rice grain flow direction, and then the rice grain that the disturbance flows, make the rice grain take place more roll and collide, the friction that makes the rice grain receive, the collision is more even, it is not enough to reduce the cross-grinding and the grinding of rice grain, and make the husk rice pressure of rice grain release rapidly, when effectively reducing the broken rice rate, help the propelling movement roller to impel the rice grain forward.

In this alternative, as shown in fig. 7, the first acting ring surface 431 is a small conical ring surface gradually and gently decreasing the flow area of the rice milling channel 401 along the flowing direction of rice grains, the small conical ring surface is simple to process, the change of the cross section area of the rice milling flow channel is gentle, the rice milling pressure change is also gentle, more rolling and collision of rice grains occur, the friction and collision of the rice grains are more uniform, the rice milling effect is effectively enhanced, and the rice crushing rate is reduced. The second acting ring surface 432 is a large conical ring surface with the flow area sharply increased along the rice grain flowing direction of the rice milling channel 401, the conical angle of the large conical ring surface is larger than that of the small conical ring surface, the large conical ring surface is easy to process, the cross section area of a rice milling flow channel is rapidly increased, rice milling pressure can be rapidly released, and a pushing roller is facilitated to push rice grains forward; meanwhile, the second acting ring surface 432 is a large conical ring surface which sharply increases the flow area of the rice milling channel 401 along the rice grain flowing direction, and compared with the second acting ring surface 432 which is a vertical surface vertical to the axis, the second acting ring surface 432 with an inclination angle can also enhance the rigidity of the adjusting ring 43, so that the adjusting ring 43 is more wear-resistant, and the service life of the adjusting ring 43 is prolonged.

Preferably, the taper angle of the small conical ring surface is 30-45 degrees, the disturbance effect on rice grain flow is not obvious when the taper angle is smaller than 30 degrees, and the rice milling pressure of rice grains is increased too much when the taper angle is larger than 45 degrees, so that the rice milling rate is increased. The taper angle of the large conical ring surface is 60-80 degrees, so that the rice milling pressure is prevented from being released in time when the taper angle is less than 60 degrees, and the rice grains are further pushed forwards by the pushing roller; meanwhile, when the taper angle is larger than 80 degrees, the rigidity of the adjusting ring 43 is reduced, and the service life of the adjusting ring 43 is further shortened.

Preferably, the first acting ring surface 431 is provided with an inward rice milling auxiliary groove. The groove is assisted in the husk rice extends and communicates the both ends of first effect anchor ring 431 along the generating line of first effect anchor ring 431, and the groove processing is assisted in the husk rice is simple to can strengthen the husk rice pressure, make the grain of rice grind more abundant. Or the rice milling auxiliary groove is an arc-shaped groove communicated with the two ends of the first acting ring surface 431, so that the rice milling pressure can be enhanced, and meanwhile, rice grains are enabled to have forward driving force, and the rice grains are prevented from being stopped and accumulated at the grinding position. Or the groove is assisted in the husk rice for being the helicla flute that the axial extends, can effectively strengthen the husk rice pressure, makes the grain of rice have forward propelling movement simultaneously, prevents that the grain of rice from being stagnated, piling up in grinding department.

Optionally, as shown in fig. 5 and 6, the rice milling chamber further includes an axial direction adjusting member 44 for adjusting the position of the adjusting ring 43 in the axial direction, the axial direction adjusting member 44 including: the locking device comprises an axial adjusting rod 441 arranged on the mounting frame assembly 41, and a first locking nut 442 arranged on the outer circle of the axial adjusting rod 441 and in threaded connection with the axial adjusting rod 441. The axial adjustment rod 441 axially penetrates through the adjustment ring 43 and is in threaded connection with the adjustment ring 43. During adjustment operation, the first locking nut 442 is firstly unscrewed, the axial adjustment rod 441 is then screwed, the axial adjustment rod 441 is a threaded rod, when the axial adjustment rod 441 rotates, the adjustment ring 43 in threaded connection with the axial adjustment rod 441 slides the axial adjustment rod 441 in the axial direction, so that adjustment of the axial position of the adjustment ring 43 is achieved, and finally the first locking nut 442 is screwed to lock the axial adjustment rod 441. Preferably, a plurality of sets of axial adjusting members 44 are uniformly distributed outside each adjusting ring 43, so as to enhance the axial adjusting effect of the adjusting ring 43, and the stable installation of the adjusting ring 43 is realized through the plurality of sets of axial adjusting members 44.

Optionally, as shown in fig. 5 and 6, the rice milling compartment further comprises rice knife blocks 45 for disturbing the flow of rice grains flowing in the sieve drum 42. The link of rice sword piece 45 links to each other with mounting bracket assembly 41, and the vortex end of rice sword piece 45 stretches into and corresponds a sieve section of thick bamboo 42 of laying, flows when the rice grain flows in sieve section of thick bamboo 42's husk rice passageway 401, because the vortex end of rice sword piece 45 stretches into a sieve section of thick bamboo 42 that corresponds, so the rice grain flow will collide with rice sword piece 45, around flowing, more tumbling and collisions take place for the rice grain, and the friction that the rice grain received is more even in the husk rice passageway 401.

In this alternative, as shown in fig. 6, the screen cylinder 42 is formed by surrounding a plurality of screen sheets sequentially arranged at intervals along the circumferential direction, and the screen cylinder 42 is simple to process and easy to prepare and install. Rice sword piece 45 lays along the axial of a sieve section of thick bamboo 42, and rice sword piece 45's vortex end stretches into a sieve section of thick bamboo 42 back from the installation clearance between two adjacent sieve pieces, the internal face of two adjacent sieve pieces is supported on the top, with shutoff installation clearance, and to the rice grain flow of flowing in a sieve section of thick bamboo 42 disturbance, rice sword piece 45 processing is simple, lay easily and install, can be used for the installation clearance between two adjacent sieve pieces of shutoff simultaneously, make a sieve section of thick bamboo 42 form one along the circumference a section of thick bamboo that fuses.

Preferably, as shown in fig. 6, the rice milling compartment further includes a radial adjustment member 46 for adjusting the radial position of the rice cutter block 45, the radial adjustment member 46 including: a radial adjusting rod 461 disposed on the mounting bracket assembly 41, and a second locking nut 462 installed on the outer circle of the radial adjusting rod 461 and connected with the radial adjusting rod 461 by screw threads. The radial adjusting rod 461 radially penetrates through the rice cutter block 45 and is in threaded connection with the rice cutter block 45. During adjustment, the second locking nut 462 is firstly unscrewed, then the radial adjusting rod 461 is screwed, the radial adjusting rod 461 is a threaded rod, when the radial adjusting rod 461 rotates, the rice knife block 45 in threaded connection with the radial adjusting rod 461 slides along the radial direction relative to the radial adjusting rod 461, so that adjustment of the rice knife block 45 along the radial direction position is achieved, and finally the second locking nut 462 is screwed to lock the radial adjusting rod 461, so that the radial adjusting member 46 is simple in structure, and the radial position adjusting operation is simple and easy. Preferably, a group of radial adjusting components 46 are uniformly distributed outside each rice knife block 45, so that the radial adjusting effect of the rice knife block 45 is enhanced, and meanwhile, the rice knife block 45 is stably installed.

Alternatively, as shown in fig. 6, the mounting bracket assembly 41 includes end mounting brackets 411 at both ends, and an intermediate mounting bracket 412 provided corresponding to each adjustment ring 43. The screen cylinder 42 is attached to the end mounting bracket 411 and the adjacent intermediate mounting bracket 412, or the screen cylinder 42 is attached to the adjacent two intermediate mounting brackets 412. The rice-cutter blocks 45 are attached to the end mounting frames 411 and the adjacent intermediate mounting frames 412, or the rice-cutter blocks 45 are attached to the adjacent two intermediate mounting frames 412. The adjustment ring 43 is attached to a correspondingly disposed intermediate mounting bracket 412. This kind of structure setting mode of mounting bracket assembly 41 compares integral type structure, can make its overall structure simple, and the installation of tip mounting bracket 411, middle mounting bracket 412 is simple, and the required material of preparation is few, and the preparation expense is low. In this alternative, as shown in fig. 6, the end mounting bracket 411 and the intermediate mounting bracket 412 are both annular to facilitate the mounting of the rice-knife block 45, the axial adjustment member 44 and the radial adjustment member 46.

Alternatively, as shown in fig. 8, the rice milling spindle 50 comprises a mounting spindle 51 arranged along the axial direction of the rice milling channel 401, a plurality of sets of pushing rollers for pushing rice grains from the feeding end to the discharging end of the rice milling channel 401, and a plurality of sets of rice milling rollers for husking and whitening the rice grains and pushing the rice grains along the rice grain pushing direction. The multiunit propelling roller and multiunit husk rice roller are installed respectively on the excircle of installation main shaft 51 to when being used for the mating action to realize that the rice grain is opened husky and is ground white, exert continuous propulsive force to the rice grain and make the husk rice pressure everywhere in the husk rice chamber tend to balance.

The rice milling main shaft comprises a plurality of groups of pushing rollers and a plurality of groups of rice milling rollers, wherein the pushing rollers are arranged on the outer circle of a mounting main shaft 51 and used for pushing rice grains in a rice milling chamber along the direction from a feeding hole to a discharging hole; on the other hand, cooperation through multiunit pushing roller and multiunit husk rice roller, when realizing that the rice grain is opened husky and is rolled white, exert lasting propulsive force to the rice grain, make the husk rice pressure of each department in the husk rice chamber tend to the equilibrium, and then prevent that the rice grain from receiving too big frictional force and husk rice pressure, reduce the rate of broken rice, improve the rate of rice simultaneously, and through the mutually supporting of multiunit husk rice roller, reach the required effect of rolling white of the rice grain, and then reduce the quantity that the rice mill establishes ties, reduce the required cost of husk rice, improve husk rice efficiency and quality simultaneously.

Alternatively, as shown in fig. 8, multiple sets of pushing rollers and multiple sets of rice milling rollers are alternately arranged in sequence along the axial direction of the mounting main shaft 51, and the ends of the adjacent pushing rollers and rice milling rollers abut against each other, that is, along the axial direction of the mounting main shaft 51, one set of pushing rollers, one set of rice milling rollers, one set of pushing rollers and one set of rice milling rollers … … are alternately arranged in sequence, and the ends of the adjacent pushing rollers and rice milling rollers abut against each other, so that the rice grains are continuously pushed forwards, and are subjected to interval type peeling and whitening.

In this alternative, as shown in fig. 8, the pushing rollers are spiral pushing rollers 52 having external threads extending spirally along the axial direction on the outer wall surface, multiple sets of spiral pushing rollers 52 are sequentially arranged at intervals along the axial direction of the mounting spindle 51, the spiral pushing rollers 52 are used for spirally pushing rice grains in the rice milling chamber forward, and through the arrangement of the multiple sets of spiral pushing rollers 52 arranged at intervals along the axial direction of the mounting spindle 51, it is ensured that continuous forward pushing force is applied to the rice grains in the length direction of the whole mounting spindle 51, the accumulation of the rice grains at the rear section of the mounting spindle 51 is prevented, and further, the rice grains are prevented from being subjected to excessive friction and rice milling pressure, so that the rice grains are stressed evenly in the length range of the whole mounting spindle 51, the rice breaking rate is reduced, and the rice output rate and the rice milling quality are improved. In the embodiment of this alternative, the spiral pushing roller 52 includes a hollow cylindrical pushing roller base installed on the outer circle of the installation main shaft 51 and external threads arranged on the outer circle of the pushing roller base, and the spiral pushing roller 52 has a simple structure and is easy to manufacture and install.

In this alternative, as shown in fig. 8, the rice milling rollers include at least one spiral rice milling roller 53 having an external thread spirally extending in the axial direction on an outer wall surface, and one of the spiral rice milling rollers 53 is disposed immediately adjacent to the first spiral feed roller 52 located in the rice grain advancing direction and located downstream of the first spiral feed roller 52. The first spiral rice milling roller 53 is arranged on the downstream side close to the first spiral propelling roller 52 and used for continuously propelling rice grains forward to prevent the rice grains from being accumulated at the feed inlet of the rice milling chamber, and meanwhile, the spiral rice milling roller 53 is also used for milling the rice grains so as to remove and whiten the skin of the subsequent rice grains, so that the operating pressure of the subsequent rice milling rollers is reduced, the rice milling quality of the rice grains is improved, and the number of rice mills connected in series is reduced. In the embodiment of the alternative scheme, the spiral rice milling roller 53 comprises a rice milling roller base body which is arranged on the outer circle of the mounting main shaft 51 and is in a hollow cylinder shape, and external threads distributed on the outer circle of the rice milling roller base body, and the spiral rice milling roller 53 is simple in structure and easy to prepare and mount.

In this alternative, as shown in fig. 8, the feeding end of the external thread on the first spiral rice milling roller 53 located in the rice grain propelling direction is communicated with the discharging end of the external thread on the first spiral propelling roller 52 located in the rice grain propelling direction, and the discharging end of the external thread on the first spiral rice milling roller 53 located in the rice grain propelling direction is communicated with the feeding end of the external thread on the second spiral propelling roller 52 located in the rice grain propelling direction, so that the rice grains can be continuously and smoothly propelled forward, and the rice grains are prevented from being stuck between the spiral rice milling rollers 53 and the spiral propelling rollers 52.

Optionally, as shown in fig. 8, the rice milling roller further includes a plurality of grooved rice milling rollers 54 having a plurality of concave rice milling grooves 541 on the outer wall surface, each grooved rice milling roller 54 is clamped between two adjacent sets of spiral pushing rollers 52, and the plurality of grooved rice milling rollers 54 are located downstream of the spiral rice milling rollers 53, and the grooved rice milling rollers 54 are used for peeling and whitening rice grains. The rice milling rollers 54 with the grooves are sequentially and alternately arranged along the axial direction of the mounting main shaft 51, so that rice grains pushed and opened are continuously peeled and whitened for multiple times, the peeling and whitening effects of the rice grains are improved, and the number of rice mills connected in series is reduced; simultaneously, recess rice milling roller 54 only is used for peeling off the whitening with the grain of rice, and does not exert forward propelling force to the grain of rice, makes the grain of rice fully peel off the whitening to through the setting of the spiral propulsion roller 52 that both sides were laid, can effectively prevent that the grain of rice from piling up, stagnating in recess rice milling roller 54 department.

In this alternative, as shown in fig. 8, the grooved rice milling roller 54 includes a rice milling roller base body which is installed on the outer circle of the installation main shaft 51 and has a hollow cylindrical shape, and a plurality of rice milling grooves 541 which are arranged on the outer circle of the rice milling roller base body. The rice milling grooves 541 are sequentially arranged along the circumferential direction of the rice milling roller base body, two ends of each rice milling groove 541 are respectively communicated with two end faces of the rice milling roller base body, so that rice grains pushed from the upstream enter the rice milling grooves 541 from the feeding end of the groove rice milling roller 54, and meanwhile, rice grains milled to be white enter the spiral propelling roller 52 from the discharging end of the groove rice milling roller 54 under the mutual pushing action, so that the continuous and forward pushing of the rice grains is realized.

Further, as shown in fig. 8, the rice milling grooves 541 are straight grooves extending in the axial direction of the rice milling roller base, and therefore, rice grains are well removed and whitened, and are not easily caught in the rice milling grooves 541. Or the rice milling groove 541 is a straight groove obliquely arranged along the outer peripheral surface of the rice milling roller base body, so that rice grains are peeled and milled fully. Or the rice milling groove 541 is an arc groove extending along the outer circumference of the rice milling roller base body in an arc line, so that rice grains are peeled and milled fully.

Optionally, as shown in fig. 8, the rice milling spindle further includes a rice brushing roller 55 mounted on the outer circumference of the mounting spindle 51. The rice brushing roller 55 is located at the most downstream of the rice grain propelling direction and is arranged close to the pushing roller or the rice milling roller, and the rice brushing roller 55 is used for loosening rice grains at the discharge port to prevent the rice grains from being accumulated at the discharge port and further causing overhigh rice milling pressure.

In this alternative, as shown in fig. 8, the rice-brushing roll 55 includes a hollow cylindrical rice-brushing roll base installed on the outer circle of the installation main shaft 51, and a plurality of rice-brushing strips 551 arranged on the outer circle of the rice-brushing roll base. The plurality of rice brushing strips 551 are sequentially arranged along the circumferential direction of the rice brushing roller base body, the two ends of each rice brushing strip 551 are respectively communicated with the two end faces of the rice brushing roller base body, and the rice brushing roller 55 is simple in structure and easy to prepare and install.

Alternatively, as shown in fig. 8, the mounting spindle 51 is a hollow shaft in communication with the blowing system. The wall surface of the rice milling roller is provided with a vent hole 56 which penetrates through the wall surface and is communicated with the inner channel of the mounting main shaft 51, so that compressed air blown out by the air blowing system is blown out outwards after passing through the mounting main shaft 51 and the vent hole 56, rice grains at the periphery of the mounting main shaft 51 are blown loose, rice husks generated during the peeling and whitening of the rice grains are blown out outwards, and the peeling and whitening effects of the rice grains are further improved.

Optionally, as shown in fig. 8, a limit step is provided at the feeding end of the mounting main shaft 51, and after the plurality of sets of pushing rollers, the plurality of sets of rice milling rollers, and the rice brushing rollers 55 are sequentially mounted on the mounting main shaft 51, the plurality of sets of pushing rollers, the plurality of sets of rice milling rollers, and the rice brushing rollers 55 are locked and fixed between the limit step and the lock nut by the lock nut disposed on the outer circle of the discharging end of the mounting main shaft 51.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel rice mill is characterized by comprising:

the rice milling machine comprises a rack (10) supported on the ground and a rice milling chamber (40) arranged on the rack (10), wherein a rice milling channel (401) for rice grains to flow is arranged in the rice milling chamber (40);

the feeding end of the rice milling channel (401) is communicated with a feeding quantitative feeder (30), the feeding end of the feeding quantitative feeder (30) is communicated with a feeding hopper (20), and the feeding quantitative feeder (30) is used for feeding brown rice to be milled contained in the feeding hopper (20) into the rice milling channel (401);

the discharge end of the rice milling channel (401) is communicated with a discharge quantitative feeder (60), and the discharge quantitative feeder (60) is used for quantitatively and outwards feeding polished rice formed by milling the brown rice in the rice milling channel (401);

a rice milling spindle (50) is further arranged in the rice milling channel (401), and the rice milling spindle (50) is used for pushing rice grains in the rice milling channel (401) from the feeding end to the discharging end of the rice milling channel and grinding the rice grains in the rice milling channel (401);

the rice milling chamber (40) comprises a mounting frame assembly (41) connected with the rack (10), a plurality of hollow cylindrical sieve cylinders (42) and a plurality of annular adjusting rings (43) are arranged on the mounting frame assembly (41), the sieve cylinders (42) are sequentially arranged at intervals along the flow direction of rice grains, and the adjusting rings (43) are arranged between every two adjacent sieve cylinders (42), so that inner channels of the sieve cylinders (42) are connected with inner channels of the adjusting rings (43) to form the rice milling channel (401) extending along the flow direction of the rice grains; the sieve cylinder (42) is used for grinding rice grains in the rice milling channel (401) in a matching way with the rice milling spindle, and the adjusting ring (43) is used for changing the flow area of the rice milling channel (401) in a matching way with the rice milling spindle so as to disturb the flowing rice grains to roll more easily and ensure that the friction and collision on the rice grains are more uniform;

the inner ring surface of the adjusting ring (43) comprises a first acting ring surface (431) and a second acting ring surface (432) which are sequentially arranged and connected along the rice grain flowing direction; the first action ring surface (431) is used for matching with a rice milling roller of the rice milling spindle so as to gradually and smoothly change the flow area of the rice milling channel (401) in the rice grain flow direction, further disturb the flowing rice grain flow and gradually and smoothly increase the rice milling pressure of the rice grains; the second action ring surface (432) is used for being matched with a pushing roller of the rice milling main shaft so as to enable the flow area of the rice milling channel (401) to be suddenly changed in the rice grain flowing direction, further disturb the flowing rice grain flow and rapidly release the rice milling pressure of the rice grains.

2. The novel rice mill of claim 1,

the feeding quantitative feeder (30) comprises an outer shell (31) which is arranged on the frame (10) and is provided with an installation inner cavity, a quantitative feeding rotor (32) which is used for quantitatively feeding the brown rice contained in the feed hopper (20) into the rice milling channel (401), and a driving member (33) which is used for driving the quantitative feeding rotor (32) to rotate;

a feed inlet (311) and a discharge outlet (312) are arranged on the outer shell (31), the feed inlet (311) is communicated with the discharge end of the feed hopper (20), and the discharge outlet (312) is communicated with the rice milling channel (401);

the quantitative feeding rotor (32) is positioned in the mounting inner cavity and is rotatably supported on the outer shell (31), and the driving end of the quantitative feeding rotor (32) extends out of the outer shell (31) and then is connected with the driving member (33) arranged on the rack (10);

the peripheral surface of the quantitative feeding rotor (32) is provided with a material guiding cavity (320) which is sequentially distributed along the circumferential direction and is concave inwards, and the material guiding cavity (320) is alternately communicated with the feeding hole (311) and the discharging hole (312) under the rotation action of the quantitative feeding rotor (32) so as to guide brown rice received by the feeding hole (311) to the discharging hole (312) for blanking.

3. A novel rice mill as claimed in claim 2,

the outer shell (31) is in a hollow shaft cylinder shape with two closed ends;

the dosing rotor (32) comprises a mounting shaft (321) and a dosing rotor (322);

the installation rotating shaft (321) is arranged along the axial direction of the outer shell (31), two ends of the installation rotating shaft (321) are rotatably supported on end plates at two ends of the outer shell (31), and a driving end of the installation rotating shaft (321) extends out of the end plate at the corresponding side and then is connected with the driving component (33);

the quantitative rotor (322) is arranged on the excircle of the mounting rotating shaft (321), and the material guide cavity (320) is arranged on the circumference of the quantitative rotor (322).

4. The novel rice mill of claim 1,

the rice milling chamber further comprises an axial adjustment member (44) for adjusting the axial position of the adjustment ring (43), the axial adjustment member (44) comprising:

the locking device comprises an axial adjusting rod (441) arranged on the mounting frame assembly (41) and a first locking nut (442) which is arranged on the outer circle of the axial adjusting rod (441) and is in threaded connection with the axial adjusting rod (441);

the axial adjusting rod (441) penetrates through the adjusting ring (43) along the axial direction and is in threaded connection with the adjusting ring (43).

5. The novel rice mill of claim 1,

the rice milling chamber also comprises a rice cutter block (45) for disturbing the rice grain flow flowing in the screen cylinder (42);

the connecting end of the rice knife block (45) is connected with the mounting frame assembly (41), and the turbulent flow end of the rice knife block (45) extends into the sieve cylinder (42) which is correspondingly arranged.

6. The novel rice mill of claim 1,

the rice milling main shaft (50) comprises a mounting main shaft (51) which is axially arranged along the rice milling channel (401), a plurality of groups of pushing rollers which are used for pushing rice grains from the feeding end to the discharging end of the rice milling channel (401), and a plurality of groups of rice milling rollers which are used for husking and whitening the rice grains and pushing the rice grains along the rice grain pushing direction;

the multiple groups of pushing rollers and the multiple groups of rice milling rollers are respectively arranged on the outer circle of the mounting main shaft (51) and used for exerting continuous propelling force on rice grains to enable the rice milling pressure at each position in the rice milling chamber to tend to be balanced when rice grains are husked and whitened under the cooperation effect.

7. The novel rice mill of claim 6,

multiple groups of pushing rollers and multiple groups of rice milling rollers are sequentially and alternately arranged along the axial direction of the mounting main shaft (51), and

the ends of the pushing rollers and the rice milling rollers which are adjacent abut against each other.

8. The novel rice mill of claim 7,

the pushing rollers are spiral pushing rollers (52) provided with external threads extending spirally along the axial direction on the outer wall surface, and a plurality of groups of spiral pushing rollers (52) are sequentially arranged at intervals along the axial direction of the mounting main shaft (51);

the rice milling roller comprises at least one spiral rice milling roller (53) which is provided with an external thread extending spirally along the axial direction on the outer wall surface, wherein one spiral rice milling roller (53) is arranged close to the first spiral propelling roller (52) positioned on the rice grain propelling direction and positioned at the downstream of the first spiral propelling roller (52).