CN112844756A

CN112844756A - A multistage grinding device for rice processing

Info

Publication number: CN112844756A
Application number: CN202110074854.4A
Authority: CN
Inventors: 张晓春
Original assignee: Hubei Lvmanyuan Agriculture Co ltd
Current assignee: Hubei Lvmanyuan Agriculture Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-05-28

Abstract

The invention discloses multistage grinding equipment for rice processing, and relates to the technical field of rice processing; in order to solve the problem of insufficient grinding of the rice; this equipment specifically includes the shell, shell one side inner wall welding has the backup pad, and backup pad top outer wall welding has the grinding groove, and the central point that grinds groove bottom inner wall puts to rotate and is connected with a lag cylinder, and lag cylinder bottom inner wall joint has the dwang, and the both sides of lag cylinder circumference inner wall are rotated respectively and are connected with the bracing piece, and two bracing pieces mesh with the dwang through gear respectively. According to the rice grinding device, the grinding groove is formed, rice can be further ground into rice flour after the rice is ground by the grinding mechanism, the rotating rod rotates after the rice enters the grinding groove and can drive the extrusion roller and the cleaning roller to rotate, the extrusion roller rolls the rice, the cleaning roller pushes the rolled rice into the filter opening, the rotating rod is controlled to rotate forwards and backwards, and the rice can be prevented from remaining in the grinding groove.

Description

A multistage grinding device for rice processing

Technical Field

The invention relates to the technical field of rice processing, in particular to multistage grinding equipment for rice processing.

Background

The rice is one of people's staple food, and the rice has high nutritive value and edible value, and along with the progress of science and technology, the rice is not only used as the staple food, still is processed into other types of product, and in the course of working, need grind the rice, carries out subsequent processing and utilizes after making it into rice flour.

Through the retrieval, chinese patent application No. 201920795647.6 discloses a grinder for rice processing, including grinding case and unloading pipe, the welding of grinding case bottom four corners department has the supporting leg, grinding bottom of the case end middle part is provided with the unloading pipe, the welding has the couple on the peripheral lateral wall of unloading pipe, be provided with pivot two in the unloading pipe, be provided with stirring blade on the two peripheral lateral walls of pivot, two one ends of pivot are provided with motor two, two below motors are provided with backup pad two, the welding has backup pad one on the grinding case lateral wall, a backup pad upper end both sides are provided with motor one. The grinding device for rice processing in the above patent has the following disadvantages: utilize two grinding rollers to grind the rice, because the rice granule is less, just drop between two grinding rollers before not being crushed completely very easily, can not be fine grind the rice into rice flour.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a multistage grinding device for rice processing.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a multistage grinding device for rice processing, which comprises an outer shell, shell one side inner wall welding has the backup pad, backup pad top outer wall welding has the grinding groove, the central point of grinding bottom of the channels inner wall puts and rotates and is connected with a protective sleeve section of thick bamboo, protective sleeve bottom of the tubes inner wall joint has the dwang, the both sides of protective sleeve circumference inner wall are rotated respectively and are connected with the bracing piece, two bracing pieces mesh with the dwang through the gear respectively, one of them bracing piece outer wall joint has the squeeze roll, squeeze roll one side outer wall is provided with the semicircle, another bracing piece outer wall joint has the cleaning roller, the filtration mouth has been seted up respectively to the both sides of grinding bottom of the channels inner wall, the inner wall that the filtration mouth is close to the top is provided with filter screen three, shell.

Preferably: rubbing crusher constructs including grinding the storehouse, the crushing flabellum of variation in size and two above arc archs, it rotates to connect in feed sleeve circumference inner wall to grind the storehouse, the dwang rotates to be connected in grinding storehouse bottom inner wall, it evenly sets up in the dwang outer wall to smash the flabellum more than two, it is narrow round platform shape under the width to grind the storehouse, and smash the flabellum more than two and arrange from big to little according to the shape of grinding the storehouse in proper order, the arc arch more than two evenly sets up in grinding the storehouse inner wall, and wherein the crushing flabellum of same horizontal plane all is located between two arc archs of same.

Further: the inner wall of the top of the shell is rotatably connected with a connecting rod, the connecting rod is meshed with the grinding bin through a gear, the outer wall of the top of the shell is fixedly provided with a first motor through a screw, an output shaft of the first motor is connected with the connecting rod through a coupler, the outer wall of the bottom of the supporting plate is welded with a protective shell, the inner wall of one side of the protective shell is fixedly provided with a second motor through a screw, and an output shaft of the second motor is connected with.

Further preferred is: the inner wall joint that the feed sleeve is close to the bottom has the filter sleeve, filter sleeve circumference inner wall sliding connection has movable ring, movable ring inner wall is provided with filter screen one, the opening of grinding the storehouse bottom is less than filter screen one and is located directly over the filter screen one, filter sleeve bottom inner wall sliding connection has four evenly distributed's extrusion pole, extrusion pole bottom is the arc, filter sleeve bottom inner wall joint has four evenly distributed's spring, the spring is connected with movable ring bottom outer wall respectively with the extrusion pole, a filter screen sliding connection is in the dwang outer wall.

As a preferable aspect of the present invention: dwang circumference outer wall both sides joint respectively have the scraper blade, and the scraper blade contacts with a filter screen bottom, and the scraper blade top is the arc and has seted up two above orifices, and dwang circumference outer wall both sides joint respectively has the stripper plate, and the stripper plate top is the arc and with extrude the bottom of the rod contact.

Further preferred as the invention: the inner wall joint that the feed sleeve is close to the top has the filter frame, and the rotation of filter frame bottom inner wall is connected with the dispersion circular cone, and the dispersion circular cone is connected with the dwang, and the filter frame is the cone shape of handstand, and filters the frame inner wall and be provided with the even division board of more than two distributions respectively, and division board and dispersion circular cone all have magnetism.

As a still further scheme of the invention: the inner wall joint of charging sleeve circumference has dry ring, and dry ring top inner wall joint has the ring of blowing, and dry ring is cavity with the ring of blowing, and the cross section of the ring of blowing is right angled triangle, and the ring one side inner wall of blowing is opened there is the mouth of blowing, and the mouth inner wall of blowing is provided with filter screen two.

On the basis of the scheme: the inner walls of two sides of the drying ring are respectively clamped with an air inlet pipe, the air inlet pipes are connected with an external heat pump, and the drying ring is positioned between the filter frame and the grinding bin.

On the basis of the foregoing scheme, it is preferable that: the inner wall of one side of the shell is fixedly provided with an arc-shaped filter screen through a hinge, the arc-shaped filter screen is positioned under the filter opening, the inner wall of the bottom of the shell is connected with a collecting tank in a sliding mode, and the collecting tank is positioned under the arc-shaped filter screen.

The invention has the beneficial effects that:

1. through being provided with the grinding groove, the grinding groove is used for smashing the rice, smash the back with the rice at rubbing crusher structure, can be further smash rice into the ground rice, be provided with a protection sleeve on grinding the groove, utilize a protection sleeve to rotate squeeze roll and cleaning roller, squeeze roll and cleaning roller can center on when grinding the groove rotatory like this, self also can rotate, get into after grinding the groove when the rice, the dwang rotates, through with the bracing piece meshing, can drive squeeze roll and cleaning roller rotation, the squeeze roll rolls the rice, the rice after the cleaning roller will roll impels the filtration mouth, control dwang just reverse rotation, can prevent that the rice from remaining at grinding the inslot.

2. Through being provided with rubbing crusher structure, rubbing crusher structure comprises the crushing flabellum of variation in size more than two and two above arc archs, the shape of smashing the flabellum more than two according to grinding the storehouse is arranged from big to little in proper order, the protruding setting of arc is at grinding the storehouse inner wall, get into after the rice is cleared up dry and grind in the storehouse, starter motor two, the drive dwang rotates, utilize crushing flabellum to smash the rice, starter motor one simultaneously, drive and grind storehouse antiport, utilize the arc arch to push the rice on both sides in the middle of, can be better smash the rice, prevent kibbling not abundant.

3. Through being provided with filter screen one, filter screen one is used for filtering kibbling rice, be blockked up in order to prevent filter screen one, be provided with the pole of extruding that can slide from top to bottom, extrude the pole and be connected with movable ring, be connected with the spring simultaneously, when the dwang rotates, two stripper plates can be ceaselessly extrude the pole, under the effect of spring, make filter screen one rock from top to bottom, prevent that there is rice granule to block up filter screen one, clear up filter screen one for further, be provided with the scraper blade in its bottom, the bottom of filter screen one can be scraped to the scraper blade, scrape away at the rice of filter screen one with the card, be provided with the leak simultaneously, do not influence dropping of rice.

4. Through being provided with the feed sleeve, the inner wall that the feed sleeve is close to the top is provided with the filtration frame that can adsorb the metallics in the rice, and the dispersion circular cone on the filtration frame all has magnetism with two above division boards, and the dispersion circular cone is connected with the dwang simultaneously and can rotates, when the rice gets into from feed sleeve, at first is broken away by the dispersion circular cone, filters away all around from the filtration frame, plays the purpose of dispersion, then the metal interception in the division board with the rice gets off.

5. Through being provided with dry ring and the ring of blowing, can dry the rice, when hot-air admission hollow dry ring with blow the ring, can make dry ring and blow ring temperature all around rise, wherein because the rice is filtered the frame dispersion and is filtered out by filtering, can increase heated area, improve drying efficiency, in order to prevent that the rice from splashing the ring of blowing on blowing simultaneously, the mouth inner wall of blowing is provided with filter screen two, can block the rice.

Drawings

FIG. 1 is a schematic front view of a multistage grinding apparatus for rice processing according to the present invention;

FIG. 2 is a schematic structural view of a filter frame of a multistage grinding device for rice processing according to the present invention;

FIG. 3 is a schematic view of a grinding chamber of a multi-stage grinding device for rice processing according to the present invention;

FIG. 4 is a schematic view of a structure of a filtering net of a multi-stage grinding device for rice processing according to the present invention;

FIG. 5 is a schematic view of a drying ring structure of a multistage grinding apparatus for rice processing according to the present invention;

fig. 6 is a schematic structural view of a secondary grinding groove of the multistage grinding device for rice processing according to the present invention.

In the figure: the device comprises a shell 1, an arc-shaped filter screen 2, a grinding groove 3, a connecting rod 4, a motor I5, a filter stand 6, a feeding sleeve 7, an air blowing ring 8, a collecting groove 9, a motor II 10, a dispersing cone 11, a partition plate 12, a grinding bin 13, an arc-shaped bulge 14, a crushing fan blade 15, a filter screen I16, a rotating rod 17, a filter sleeve 18, a spring 19, a movable ring 20, an extrusion rod 21, a scraper 22, a leakage orifice 23, an extrusion plate 24, a filter screen II 25, an air inlet pipe 26, a drying ring 27, an extrusion roller 28, a semicircle 29, a filter orifice 30, a cleaning roller 31 and a protective sleeve 32.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

A multi-stage grinding device for rice processing is disclosed, as shown in figures 1 and 6, and comprises a shell 1, wherein a support plate is welded on the inner wall of one side of the shell 1, a grinding groove 3 is welded on the outer wall of the top of the support plate, a protective sleeve 32 is rotatably connected at the central position of the inner wall of the bottom of the grinding groove 3, a rotating rod 17 is clamped on the inner wall of the bottom of the protective sleeve 32, two support rods are respectively rotatably connected at two sides of the circumferential inner wall of the protective sleeve 32, the two support rods are respectively engaged with the rotating rod 17 through gears, an extrusion roller 28 is clamped on the outer wall of one support rod, a semicircle 29 is arranged on the outer wall of one side of the extrusion roller 28, a cleaning roller 31 is clamped on the outer wall of the other support rod, filter openings 30 are respectively arranged at two sides of the inner wall of the bottom of, the crushing mechanism is positioned above the grinding groove 3; through being provided with grinding groove 3, grinding groove 3 is used for smashing the rice, smash the back with the rice at rubbing crusher structure, can be further smash rice into rice flour, be provided with protective sleeve 32 on grinding groove 3, utilize protective sleeve 32 to rotate squeeze roll 28 and cleaning roller 31, squeeze roll 28 and cleaning roller 31 can center on grinding groove 3 when rotatory like this, self also can rotate, get into grinding groove 3 after the rice, dwang 17 rotates, through meshing with the bracing piece, can drive squeeze roll 28 and cleaning roller 31 rotatory, squeeze roll 28 rolls the rice, cleaning roller 31 impels filter 30 with the rice after rolling, control dwang 17 just rotates in reverse, can prevent that the rice from remaining in grinding groove 3.

In order to be able to pulverize rice; as shown in fig. 1 and 3, the crushing mechanism comprises a grinding bin 13, more than two crushing blades 15 with different sizes and more than two arc-shaped bulges 14, the grinding bin 13 is rotatably connected with the inner wall of the circumference of a feeding sleeve 7, a rotating rod 17 is rotatably connected with the inner wall of the bottom of the grinding bin 13, the more than two crushing blades 15 are uniformly arranged on the outer wall of the rotating rod 17, the grinding bin 13 is in a round table shape with a wide top and a narrow bottom, the more than two crushing blades 15 are sequentially arranged from large to small according to the shape of the grinding bin 13, the more than two arc-shaped bulges 14 are uniformly arranged on the inner wall of the grinding bin 13, the crushing blades 15 on the same horizontal plane are all positioned between the two arc-shaped bulges 14 on the same vertical plane, the inner wall of the top of the shell 1 is rotatably connected with a connecting rod 4, the connecting rod 4 is meshed with the grinding bin 13 through, a protective shell is welded on the outer wall of the bottom of the supporting plate, a second motor 10 is fixed on the inner wall of one side of the protective shell through a screw, and an output shaft of the second motor 10 is connected with the rotating rod 17 through a coupler; through being provided with rubbing crusher structure, rubbing crusher structure comprises two above the size difference crushing flabellum 15 and two above arc archs 14, crushing flabellum 15 is arranged from big to little according to the shape of grinding storehouse 13 in proper order more than crushing flabellum 15 two, arc arch 14 sets up and is grinding storehouse 13 inner wall, get into after the rice is cleared up dry and grind in the storehouse 13, starter motor two 10, drive dwang 17 and rotate, utilize crushing flabellum 15 to smash the rice, starter motor one 5 simultaneously, drive and grind storehouse 13 antiport, utilize arc arch 14 to push the rice on both sides to the centre, can be better smash the rice, prevent kibbling not abundant.

In order to realize the filtration of the crushed rice; as shown in fig. 1 and 4, a filtering sleeve 18 is clamped on the inner wall of the feeding sleeve 7 close to the bottom, a movable ring 20 is slidably connected to the inner wall of the circumference of the filtering sleeve 18, a first filtering net 16 is arranged on the inner wall of the movable ring 20, the opening at the bottom of the grinding bin 13 is smaller than the first filtering net 16 and is positioned right above the first filtering net 16, four extruding rods 21 which are uniformly distributed are slidably connected to the inner wall of the bottom of the filtering sleeve 18, the bottom of each extruding rod 21 is arc-shaped, four springs 19 which are uniformly distributed are clamped on the inner wall of the bottom of the filtering sleeve 18, the springs 19 and the extruding rods 21 are respectively connected with the outer wall of the bottom of the movable ring 20, the first filtering net 16 is slidably connected to the outer wall of the rotating rod 17, scraping plates 22 are respectively clamped on both sides of the outer wall of the circumference of the rotating rod 17, the scraping plates 22 are, the top of the extrusion plate 24 is arc-shaped and is contacted with the bottom of the extrusion rod 21; through being provided with filter screen 16, filter screen 16 is used for filtering kibbling rice, in order to prevent that filter screen 16 from being blockked up, be provided with can be gliding extrusion pole 21 from top to bottom, extrusion pole 21 is connected with activity ring 20, be connected with spring 19 simultaneously, when dwang 17 rotates, extrusion pole 21 that two stripper plates 24 can not stop, under spring 19's effect, make filter screen 16 rock from top to bottom, it has rice granule to block up filter screen 16, in order to further clear up filter screen 16, be provided with scraper blade 22 in its bottom, scraper blade 22 can scrape the bottom of filter screen 16, scrape away the rice that will block at filter screen 16, be provided with leak 23 simultaneously, do not influence dropping of rice.

In order to be able to carry out the filtration, drying and final collection of the rice before crushing; as shown in fig. 1, 2, 3 and 5, the inner wall of the feeding sleeve 7 near the top is clamped with a filter frame 6, the inner wall of the bottom of the filter frame 6 is rotatably connected with a dispersion cone 11, the dispersion cone 11 is connected with a rotating rod 17, the filter frame 6 is in an inverted conical shape, the inner wall of the filter frame 6 is respectively provided with more than two partition plates 12 which are uniformly distributed, the partition plates 12 and the dispersion cones 11 are both magnetic, the inner wall of the circumference of the feeding sleeve 7 is clamped with a drying ring 27, the inner wall of the top of the drying ring 27 is clamped with an air blowing ring 8, the drying ring 27 and the air blowing ring 8 are both hollow, the cross section of the air blowing ring 8 is in a right-angled triangle shape, one side inner wall of the air blowing ring 8 is provided with an air blowing port, the inner wall of the air blowing port is provided with a filter screen two 25, the inner walls of the two sides of the drying ring 27 are, an arc-shaped filter screen 2 is fixed on the inner wall of one side of the shell 1 through a hinge, the arc-shaped filter screen 2 is positioned under the filter opening 30, the inner wall of the bottom of the shell 1 is connected with a collecting tank 9 in a sliding mode, and the collecting tank 9 is positioned under the arc-shaped filter screen 2; by arranging the feeding sleeve 7, the inner wall of the feeding sleeve 7 close to the top is provided with the filtering frame 6 capable of adsorbing metal substances in the rice, the dispersing cone 11 and more than two partition plates 12 on the filtering frame 6 are magnetic, meanwhile, the dispersing cone 11 is connected with the rotating rod 17 and can rotate, when the rice enters from the feeding sleeve 7, the rice is firstly dispersed by the dispersing cone 11 and filtered out from the periphery of the filtering frame 6, so that the dispersing purpose is achieved, and then the partition plates 12 intercept the metal substances in the rice; the rice can be dried by arranging the drying circular ring 27 and the blowing ring 8, when hot air enters the hollow drying circular ring 27 and the blowing ring 8, the temperature around the drying circular ring 27 and the blowing ring 8 can be raised, wherein the rice is dispersedly filtered by the filter frame 6, the heating area can be increased, the drying efficiency is improved, and meanwhile, in order to prevent the rice from splashing into the blowing port on the blowing ring 8, the inner wall of the blowing port is provided with the filter screen II 25, the rice can be blocked; through being provided with the ARC filter screen 2 that the hinge is fixed, after the rice falls from filter 30, filter by ARC filter screen 2 for the ground rice drops to collection groove 9, accomplishes and collects.

When the rice mill is used, when the rice enters from the feeding sleeve 7, the rice is firstly dispersed by the dispersing cone 11 and is filtered out from the periphery of the filter frame 6 to achieve the dispersing purpose, then the metal in the rice is intercepted by the partition plate 12, the hot air enters the hollow drying ring 27 and the blowing ring 8, the temperature around the drying ring 27 and the blowing ring 8 can be increased, the hot air blown out from the blowing port dries the rice, the filter screen II 25 can obstruct the rice, the rice enters the grinding bin 13 after being cleaned and dried, the motor II 10 is started to drive the rotating rod 17 to rotate, the rice is ground by the grinding fan blades 15, the motor I5 is started to drive the grinding bin 13 to reversely rotate, the arc-shaped bulges 14 are used for pushing the rice at two sides to the middle, the rice can be better ground, the insufficient grinding is prevented, and when the rotating rod 17 rotates, two extrusion board 24 extrusion pole 21 that can not stop, under spring 19's effect, make a filter screen 16 rock from top to bottom, it blocks up filter screen 16 to prevent to have the rice granule, its bottom is provided with scraper blade 22, scraper blade 22 can scrape the bottom of filter screen 16, will block and scrape away at the rice of filter screen 16, be provided with leak 23 simultaneously, do not influence dropping of rice, after the rice gets into grinding groove 3, dwang 17 rotates, through with the bracing piece meshing, can drive squeeze roll 28 and cleaning roller 31 rotatory, squeeze roll 28 rolls the rice, cleaning roller 31 impels filter 30 with the rice after rolling, after the rice drops from filter 30, filter by ARC filter screen 2, make the rice flour drop to collection groove 9, accomplish and collect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A multi-stage grinding device for rice processing comprises a shell (1) and is characterized in that a supporting plate is welded on the inner wall of one side of the shell (1), a grinding groove (3) is welded on the outer wall of the top of the supporting plate, a protecting sleeve (32) is rotatably connected to the central position of the inner wall of the bottom of the grinding groove (3), a rotating rod (17) is clamped on the inner wall of the bottom of the protecting sleeve (32), supporting rods are respectively rotatably connected to two sides of the circumferential inner wall of the protecting sleeve (32), the two supporting rods are respectively meshed with the rotating rod (17) through gears, an extruding roller (28) is clamped on the outer wall of one side of the extruding roller (28), a cleaning roller (31) is clamped on the outer wall of the other supporting rod, filter openings (30) are respectively arranged on two sides of the inner wall of the bottom of the grinding groove (3), and, the inner wall of the top of the shell (1) is clamped with a feeding sleeve (7), the inner wall of the feeding sleeve (7) is provided with a crushing mechanism, and the crushing mechanism is positioned above the grinding groove (3).

2. The multistage grinding apparatus for rice processing according to claim 1, the crushing mechanism comprises a grinding bin (13), more than two crushing fan blades (15) with different sizes and more than two arc-shaped bulges (14), the grinding bin (13) is rotatably connected to the inner wall of the circumference of the feeding sleeve (7), the rotating rod (17) is rotatably connected to the inner wall of the bottom of the grinding bin (13), the more than two crushing fan blades (15) are uniformly arranged on the outer wall of the rotating rod (17), the grinding bin (13) is in a round table shape with a wide upper part and a narrow lower part, more than two crushing fan blades (15) are arranged in sequence from big to small according to the shape of the grinding bin (13), more than two arc-shaped bulges (14) are uniformly arranged on the inner wall of the grinding bin (13), and the crushing fan blades (15) on the same horizontal plane are positioned between the two arc-shaped bulges (14) on the same vertical plane.

3. The multistage grinding equipment for rice processing according to claim 1, characterized in that the inner wall of the top of the shell (1) is rotatably connected with a connecting rod (4), the connecting rod (4) is meshed with the grinding bin (13) through a gear, the outer wall of the top of the shell (1) is fixed with a first motor (5) through a screw, the output shaft of the first motor (5) is connected with the connecting rod (4) through a coupler, the outer wall of the bottom of the supporting plate is welded with a protective shell, the inner wall of one side of the protective shell is fixed with a second motor (10) through a screw, and the output shaft of the second motor (10) is connected with the rotating rod (17) through a coupler.

4. The multistage grinding apparatus for rice processing according to claim 1, inner wall joint that feed sleeve (7) are close to the bottom has filtering sleeve (18), filtering sleeve (18) circumference inner wall sliding connection has movable ring (20), movable ring (20) inner wall is provided with filter screen (16), the opening that grinds storehouse (13) bottom is less than filter screen (16) and is located directly over filter screen (16), filtering sleeve (18) bottom inner wall sliding connection has extrusion pole (21) of four evenly distributed, extrusion pole (21) bottom is the arc, filtering sleeve (18) bottom inner wall joint has spring (19) of four evenly distributed, spring (19) and extrusion pole (21) are connected with movable ring (20) bottom outer wall respectively, filter screen (16) sliding connection is in dwang (17) outer wall.

5. The multistage grinding equipment for rice processing according to claim 1, wherein the scraping plates (22) are respectively clamped on two sides of the circumferential outer wall of the rotating rod (17), the scraping plates (22) are in contact with the bottom of the first filter screen (16), the tops of the scraping plates (22) are arc-shaped and are provided with more than two leakage openings (23), the squeezing plates (24) are respectively clamped on two sides of the circumferential outer wall of the rotating rod (17), and the tops of the squeezing plates (24) are arc-shaped and are in contact with the bottoms of the squeezing rods (21).

6. The multistage grinding equipment for rice processing as claimed in claim 1, wherein the inner wall of the feeding sleeve (7) close to the top is clamped with a filter stand (6), the inner wall of the bottom of the filter stand (6) is rotatably connected with a dispersion cone (11), the dispersion cone (11) is connected with a rotating rod (17), the filter stand (6) is in an inverted conical shape, the inner wall of the filter stand (6) is respectively provided with more than two partition plates (12) which are uniformly distributed, and the partition plates (12) and the dispersion cone (11) are both magnetic.

7. The multistage grinding equipment for rice processing as claimed in claim 6, wherein the inner wall of the circumference of the feeding sleeve (7) is clamped with a drying ring (27), the inner wall of the top of the drying ring (27) is clamped with an air blowing ring (8), the drying ring (27) and the air blowing ring (8) are both hollow, the cross section of the air blowing ring (8) is a right-angled triangle, an air blowing opening is formed in the inner wall of one side of the air blowing ring (8), and a second filter screen (25) is arranged on the inner wall of the air blowing opening.

8. The multistage grinding device for rice processing as claimed in claim 7, wherein the drying ring (27) is clamped with an air inlet pipe (26) on both inner side walls, the air inlet pipe (26) is connected with an external heat pump, and the drying ring (27) is located between the filter rack (6) and the grinding bin (13).

9. The multistage grinding equipment for rice processing according to claim 4, wherein the arc-shaped filter screen (2) is fixed on the inner wall of one side of the shell (1) through a hinge, the arc-shaped filter screen (2) is positioned under the filter opening (30), the inner wall of the bottom of the shell (1) is connected with a collecting tank (9) in a sliding mode, and the collecting tank (9) is positioned under the arc-shaped filter screen (2).