阅读说明：本技术 一种大米生产用抛光装置 (Burnishing device is used in rice production ) 是由 史自顺 刘德田 史胜风 于 2021-09-08 设计创作，主要内容包括：本发明涉及大米加工设备技术领域,具体公开了一种大米生产用抛光装置；包括机箱和上料装置,机箱中设置有倾斜向下设置的筛面板,筛面板的上端连接有正对上料装置设置的接料板,位于筛面板下方的机箱上设置有排料通道,位于筛面板上方的机箱中设置有两个传动辊,两个传动辊之间设置有柔性抛光带,柔性抛光带的外表面嵌有大量抛光丸,位于柔性抛光带的内圈中设置有与机箱内壁固定连接有固定板,且固定板与筛面板平行设置,固定板的下表面连接有多个缓冲压紧装置；本大米抛光装置在保证大米抛光效果的前提下,能够极大降低抛光过程中的碎米率,使得整个抛光装置对大米的抛光效果十分优异。(The invention relates to the technical field of rice processing equipment, and particularly discloses a polishing device for rice production; the polishing machine comprises a machine case and a feeding device, wherein a sieve panel which is obliquely and downwards arranged is arranged in the machine case, the upper end of the sieve panel is connected with a material receiving plate which is arranged right opposite to the feeding device, a discharge channel is arranged on the machine case below the sieve panel, two transmission rollers are arranged in the machine case above the sieve panel, a flexible polishing belt is arranged between the two transmission rollers, a large number of polishing pills are embedded on the outer surface of the flexible polishing belt, a fixed plate which is fixedly connected with the inner wall of the machine case is arranged in an inner ring of the flexible polishing belt, the fixed plate is parallel to the sieve panel, and the lower surface of the fixed plate is connected with a plurality of buffering and pressing devices; this rice burnishing device can greatly reduce the broken rice rate in the polishing process under the prerequisite of guaranteeing rice polishing effect for whole burnishing device is very excellent to the polishing effect of rice.)

1. A polishing device for rice production comprises a machine case and a feeding device, and is characterized in that a sieve panel which is obliquely and downwardly arranged is arranged in the machine case, the upper end of the screen panel is connected with a material receiving plate which is arranged right opposite to the feeding device, a discharge channel is arranged on the machine case which is positioned below the screen panel, two driving rollers are arranged in the machine case which is positioned above the screen panel, a flexible polishing belt is arranged between the two driving rollers, a large number of polishing pills are embedded on the outer surface of the flexible polishing belt, a polishing gap is reserved between the flexible polishing belt and the upper surface of the screen panel, a fixing plate fixedly connected with the inner wall of the case is arranged in the inner ring of the flexible polishing belt, the fixed plate and the screen panel are arranged in parallel, and the lower surface of the fixed plate is connected with a plurality of buffer pressing devices which are abutted with the lower end of the flexible polishing belt in a rectangular array shape;

the buffer pressing device comprises a movable rod connected with the fixed plate, the lower end of the movable rod is connected with a pressing wheel connected with the lower end of the flexible polishing belt in an abutting mode, the movable rod is further movably connected with a buffer telescopic assembly, and the other end of the buffer telescopic assembly is connected with the fixed plate.

2. The polishing device for rice production according to claim 1, wherein inclined guide grooves are connected to the front and rear inner walls of the cabinet, smooth convex plates capable of moving along the inclined guide grooves are connected to the front and rear ends of the screen panel, and a driving assembly for driving the screen panel to reciprocate along the inclined guide grooves is further provided on the cabinet.

3. The polishing device for rice production according to claim 2, wherein an atomizing and spraying mechanism is arranged above the material receiving plate, the atomizing and spraying mechanism comprises a piston liquid pumping device and a piston air pumping device which are arranged at the front end and the rear end of the machine case and move synchronously along with the screen panel, the piston liquid pumping device is provided with a plurality of atomizing nozzles, and the piston air pumping device is connected with compressed air pipes connected with each atomizing nozzle.

4. The polishing device for rice production as claimed in claim 1, wherein the screen plate has edge strips attached to both front and rear ends thereof.

5. The polishing device for rice production as claimed in claim 1, wherein the buffer telescopic assembly comprises a hollow sleeve connected with the fixing plate, a telescopic rod is inserted into the hollow sleeve, and a spring is connected between the inner end of the telescopic rod and the hollow sleeve.

6. The polishing device for rice production as claimed in claim 1, wherein the feeding device comprises a hopper and a homogenizing cylinder arranged at the lower end of the hopper, a rotating shaft externally connected with a stepping motor is arranged in the homogenizing cylinder, a plurality of material blocking plates are uniformly connected to the circumferential surface of the rotating shaft, and a discharging pipe opposite to the material receiving plate is connected to the lower end of the homogenizing cylinder.

Technical Field

The invention relates to the technical field of rice processing equipment, and particularly discloses a polishing device for rice production.

Background

In the rice processing process, the rice needs to be polished to remove the rice bran remained on the surface of the rice and increase the glossiness of the rice on the surface. Traditional rice polishing machine all adopts polishing roll to polish rice, thereby rice produces relative motion, relative friction, extrusion when carrying in a sieve section of thick bamboo with the rib or the arch on polishing roll surface, with the sifting surface of a sieve section of thick bamboo or between the grain of rice and realizes the polishing. Because the traditional polishing roller and the screen drum are both made of hard materials, the rice is easy to break when the extrusion force applied to the rice is too large in the polishing process, and the rice breaking rate of the traditional roller type polishing machine is higher when the rice is polished.

For example, the utility model with the application number of CN201420773976.8 discloses a rice polishing machine, which comprises a bracket, a feed hopper, a gas-liquid conveying device, a spraying device, a polishing chamber, a screen drum, a polishing roller device and an exhaust device, wherein the polishing chamber is arranged on the bracket, the feed hopper is arranged above the polishing chamber and is communicated with the polishing chamber so as to convey white rice to the polishing chamber, and the feed hopper is close to one end of the polishing chamber; the screen cylinder and the polishing roller device are arranged in the polishing chamber, and the polishing roller device penetrates through the screen cylinder and is coaxial with the screen cylinder; the screen cylinder and the polishing chamber are relatively fixed, and a gap is formed between the screen cylinder and the polishing chamber; the polishing roller device comprises a polishing roller, a spiral propeller and a hollow main shaft, wherein the first end of the hollow main shaft sequentially penetrates through the spiral propeller and the polishing roller, the hollow main shaft is relatively fixed with the spiral propeller and the polishing roller, the second end of the hollow main shaft penetrates out of the polishing chamber and is connected with a driving motor, air suction holes are formed in the hollow main shaft and the polishing roller, the air suction holes in the hollow main shaft and the polishing roller are opposite, and the air suction holes are close to the spiral propeller. The utility model discloses a rice polishing machine structure is exactly traditional roll-type burnishing machine, and it is broken rice rate when polishing the rice is higher. Therefore, to the above-mentioned not enough of current roller burnishing machine, this application has proposed a polishing device for rice production of brand-new structural design in order to reduce broken rice rate.

Disclosure of Invention

The invention aims to overcome the defects of the existing roller type polishing machine, and provides a polishing device with a brand-new structural design for rice production.

The invention is realized by the following technical scheme:

the utility model provides a burnishing device is used in rice production, includes quick-witted case and loading attachment, be provided with the downward sieve face board that sets up of slope in the machine case, sieve face board's upper end is connected with just to the flitch that connects that loading attachment set up, is located and is provided with discharge channel on the quick-witted case of sieve face board below, is located be provided with two driving rollers in the quick-witted case of sieve face board top, two be provided with flexible polishing belt between the driving roller, a large amount of polishing balls have been inlayed to flexible polishing belt's surface, and reserve between the upper surface of flexible polishing belt and sieve face board and have polishing clearance, be located be provided with in flexible polishing belt's the inner circle with quick-witted incasement wall fixedly connected with fixed plate, and fixed plate and sieve face board parallel arrangement, the lower surface of fixed plate is rectangular array form and is connected with a plurality of buffer pressing device with flexible polishing belt lower extreme looks butt.

The rice burnishing device of this design is when polishing the rice, loading attachment will treat that the rice of processing is arranged the whereabouts and is connecing the flitch on, then get into the polishing clearance along the screen panel, simultaneously because the transmission of driving roller makes the incessant motion of flexible polishing area, make the rice receive polishing ball and the incessant friction of screen panel on the flexible polishing area in the polishing clearance, the polishing process to the rice is realized in the extrusion, and because the flexible design of polishing area and buffering closing device's the pressure down can prevent effectively that screen panel and flexible polishing area from too big and causing the breakage to the extrusion force of rice, its broken rice rate that has greatly reduced whole rice polishing processing.

The buffer pressing device comprises a movable rod connected with the fixed plate, the lower end of the movable rod is connected with a pressing wheel connected with the lower end of the flexible polishing belt in an abutting mode, the movable rod is further movably connected with a buffer telescopic assembly, and the other end of the buffer telescopic assembly is connected with the fixed plate. The pinch roller among the above-mentioned buffering closing device makes polishing ball act on the rice with flexible polishing belt looks butt, and when the extrusion force that the rice received was too big, the buffering flexible subassembly shortened and can upwards mention the small distance with the pinch roller to reduce the extrusion force between rice and the polishing belt, thereby reach the effect that reduces the garrulous rice rate of polishing.

As a further arrangement of the above scheme, the front and rear inner walls of the case are both connected with inclined guide grooves, the front and rear ends of the screen panel are connected with smooth convex plates capable of moving along the inclined guide grooves, and the case is also provided with a driving assembly for driving the screen panel to reciprocate along the inclined guide grooves; the aforesaid can increase the effect process that polishing in-process rice received flexible polishing area along slope guide slot reciprocating motion design with the screen panel to can improve the polishing effect to the rice.

As a further arrangement of the above scheme, an atomization spraying mechanism is arranged above the material receiving plate, the atomization spraying mechanism comprises a piston liquid pumping device and a piston air pumping device which are arranged at the front end and the rear end of the case and synchronously move along with the screen panel, a plurality of atomization nozzles are arranged on the piston liquid pumping device, and a compressed air pipe connected with each atomization nozzle is connected on the piston air pumping device; the atomizing spray mechanism that above-mentioned set up can spray the atomized water along with the reciprocating motion of sifting board in step, can effectively prevent to polish in-process rice temperature rise too fast behind the complicated rice surface of atomized water, but also can increase the glossiness of polishing back rice.

As the further setting of above-mentioned scheme, both ends all are connected with the strake board around the sifting board, and the strake board of its setting can prevent that the rice from leaking down from both ends around the sifting board in rice polishing process.

As a further arrangement of the above scheme, the buffer telescopic assembly comprises a hollow sleeve connected with the fixed plate, a telescopic rod is inserted in the hollow sleeve, and a spring is connected between the inner end of the telescopic rod and the hollow sleeve; the structural design of the buffer telescopic assembly is only one of the structures, but not limited to the above structure.

As a further arrangement of the scheme, the feeding device comprises a hopper and a material homogenizing cylinder arranged at the lower end of the hopper, a rotating shaft externally connected with a stepping motor is arranged in the material homogenizing cylinder, a plurality of material blocking plates are uniformly connected on the circumferential surface of the rotating shaft, and the lower end of the material homogenizing cylinder is connected with a blanking pipe which is over against the material receiving plate; the structural design of the feeding device can enable the rice to be evenly fed in the polishing process, so that the process of polishing the rice every time is the same, and the difference of the appearance of the polished rice is reduced.

Has the advantages that:

1) according to the rice polishing device disclosed by the invention, the traditional polishing roller and the sieve drum are replaced by the flexible polishing belt and the sieve panel, wherein the inner ring of the flexible polishing belt is also provided with a plurality of buffer pressing devices for pressing the flexible polishing belt, the flexible polishing belt can be slightly deformed when the rice is polished and processed, and the buffer pressing devices can be upwards contracted, so that the extrusion force applied to the rice in the polishing gap can not be overlarge all the time, and the rice breaking rate of the rice in the polishing process is reduced. Simultaneously because flexible polishing belt receives a plurality of buffering closing device's effect of compressing tightly for the flexible polishing belt that every buffering closing device corresponds forms an independent polishing region, makes and can not cause the interact in the polishing process to the rice, consequently effectively guarantees rice polishing effect, makes whole burnishing device comparatively excellent to the polishing effect of rice.

2) The screen panel is arranged along the polishing clearance in a reciprocating motion mode, and the action process of the rice on the flexible polishing belt in the polishing process is increased in the reciprocating motion process of the screen panel, so that the polishing effect of the rice can be further improved. In addition, still spray the mechanism through the atomizing that sets up with the screen panel synchronization action, through spraying the atomized liquid before carrying out the rice polishing to because the spraying amount when both synchronous motion can effective control polishing, effectively guaranteed the rice quality that the polishing obtained.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic perspective view of a screen panel, a piston pumping device, etc. according to the present invention;

FIG. 3 is a schematic perspective view of the flexible polishing belt, the fixing plate, the buffering and compressing device, and the like according to the present invention;

FIG. 4 is a schematic perspective view of the buffering and compressing device of the present invention;

fig. 5 is a schematic perspective view of the piston pumping device and the piston air extractor of the present invention.

Wherein:

1-cabinet, 100-polishing mechanism, 101-screen panel, 102-edge strip plate, 103-flexible polishing belt, 104-conveying roller, 105-polishing pill, 106-fixing plate, 107-material receiving plate, 109-inclined guide groove, 110-smooth convex plate, 111-rack and 112-incomplete gear;

200-a buffer pressing device, 201-a movable rod, 202-a pressing wheel, 203-a buffer telescopic sleeve, 2031-a hollow sleeve and 2032-a telescopic rod;

3-supporting feet, 400-a loading device, 401-a hopper, 402-a material homogenizing barrel, 403-a rotating shaft, 404-a material baffle plate and 405-a discharging pipe;

500-piston liquid pumping device, 501-liquid pumping piston cylinder, 502-first piston rod, 503-first bump, 504-liquid discharge pipe, 505-first one-way valve, 506-atomizing nozzle, 507-liquid inlet pipe, 508-second one-way valve;

600-piston air extracting device, 601-air extracting piston cylinder, 602-second piston rod, 603-second lug, 604-exhaust pipe, 605-third one-way valve, 606-compression bronchus, 607-exhaust pipe, 608-fourth one-way valve;

700-storage box.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", and,

The terms "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like, refer to an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 5, in conjunction with the embodiments.

Example 1

Embodiment 1 discloses a polishing apparatus for rice production, and referring to fig. 1, the main body of the polishing apparatus includes a cabinet 1 and a polishing mechanism 100 provided in the cabinet 1. The lower surface of the case 1 is provided with a bran dust collecting hopper 2, and the lower surface of the case 1 is connected with a plurality of supporting legs 3.

Referring to fig. 1 and 2, the polishing mechanism 100 includes a screen panel 101 disposed obliquely downward, and the screen panel 101 is welded to the front and rear inner walls of the cabinet 1. Meanwhile, the vertical upward side strips 102 are provided at the front and rear ends of the screen panel 101 to prevent the rice on the screen panel 101 from leaking from the front and rear ends of the screen panel 101 during the polishing process. A material receiving plate 107 is connected to the upper end of the screen panel 101, and a feeding device 400 is disposed on the upper surface of the casing 1 directly above the material receiving plate 107.

Specifically, the feeding device 400 includes a hopper 401 disposed above the chassis 1, a material homogenizing cylinder 402 is connected to a lower end of the hopper 401, a rotating shaft 403 is disposed in the material homogenizing cylinder 402, a stepping motor connected to the rotating shaft 403 is disposed on an outer end surface of the material homogenizing cylinder 402, and the rotating shaft 403 can rotate by a certain angle each time through a driving action of the stepping motor. A plurality of material blocking plates 404 are uniformly connected to the circumferential surface of the rotating shaft 403, a material storage space is formed between two adjacent material blocking plates 404, and finally a blanking pipe 405 facing the material receiving plate 107 is connected to the lower end of the material homogenizing cylinder 402.

Referring to fig. 3 and 4, a flexible polishing belt 103 is disposed above the screen panel 101, and conveying rollers 104 are disposed at two ends of the flexible polishing belt 103, an equal-interval polishing gap is reserved between the flexible polishing belt 103 and the screen panel 101 under the conveying of the conveying rollers 104, and a driving motor (not shown in the figures) for driving one of the conveying rollers 104 to rotate is disposed on the outer surface of the machine box 1.

A large number of polishing balls 105 are embedded on the outer surface of the flexible polishing belt 103, and a fixing plate 106 extending into the inner ring of the flexible polishing belt 103 is welded to the side wall of the cabinet 1, and the fixing plate 106 is arranged parallel to the screen panel 101. A plurality of groups of buffer pressing devices 200 are arranged on the lower surface of the fixed plate 106 in a rectangular array, specifically, the buffer pressing devices 200 include movable rods 201 rotatably connected with the fixed plate 106, and pressing wheels 202 connected with the lower ends of the movable rods 201 and abutted against the lower ends of the flexible polishing belts 103. Meanwhile, a buffer telescopic sleeve 203 is rotatably connected to the middle section of the movable rod 201, and the top end of the buffer telescopic sleeve 203 is movably connected with the fixing plate 106.

Referring to fig. 5, the buffer telescopic sleeve 203 includes a hollow sleeve 2031 at an upper end, a telescopic rod 2032 is inserted into the hollow sleeve 2031, and a buffer spring is connected between an inner end of the telescopic rod 2032 and a top wall of the hollow sleeve 2031.

Finally, a rice outlet is arranged on the case 1 at the lower end of the screen panel 101, and a discharging channel 5 extending out of the case 1 is welded in the rice outlet.

When the polishing device for rice production disclosed in this embodiment 1 polishes rice, rice to be polished is uniformly discharged into the polishing gap through the feeding device 400, and the rice is polished by relative movement, relative friction and extrusion with a large number of polishing pills 105 and the screen panel 101 through the conveying action of the flexible polishing belt 103 in the process of passing through the polishing gap. And because the flexible polishing belt 103 is acted by the buffering and pressing device 200, when the extrusion force between the rice and the polishing pills 105 is too large, the buffering telescopic sleeve 203 in the buffering and pressing device 200 contracts, so that the gap between the rice and the polishing pills 105 is enlarged, the extrusion force between the rice and the polishing pills 105 is reduced, and broken rice generated in the polishing process is reduced. In addition, because the flexible polishing belt 103 is divided into a large number of small areas to act with each buffer pressing device 200, the extrusion force adjustment of each area is independent when the flexible polishing belt 103 polishes rice, so that the situation that other polishing areas cannot polish rice completely is avoided, and the polishing effect of rice is effectively ensured.

Example 2

Embodiment 2 discloses a polishing device for rice production improved based on embodiment 1, which mainly aims at the problem that the polishing effect may be reduced due to the short process of relative movement and relative friction of rice in a polishing gap.

The embodiment 2 is the same as the embodiment 1, but the difference is that: the screen panel 101 in this embodiment 2 is movably disposed in the chassis 1, and the inclined guide grooves 109 parallel to the screen panel 101 are welded to the front and rear inner walls of the chassis 1, and then the smooth convex plates 110 matched with the inclined guide grooves 109 are welded to the front and rear ends of the screen panel 101.

Meanwhile, racks 111 are welded on the upper surface and the lower surface of one of the smooth convex plates 110, an incomplete gear 112 is arranged above and below the racks 111 respectively, the number of teeth on the incomplete gear 112 is not more than half, a motor (not shown in the figure) for driving the two incomplete gears 112 to synchronously rotate is arranged on the outer surface of the case 1, and the two incomplete gears 112 are sequentially staggered and meshed with the corresponding racks 111 in the synchronous rotation process driven by the motor, so that the whole screen panel 101 is driven to reciprocate along the inclined guide groove 109.

Embodiment 2 discloses a polishing device for rice production after improvement, in the polishing process of rice, can make rice have enough long polishing process with sieve panel 101, flexible polishing belt 103 through increasing the reciprocating motion of sieve panel 101 to can improve the polishing effect of whole device to rice.

Example 3

Embodiment 3 discloses a burnishing device is used in rice production based on embodiment 2 improves on a basis, because the rice intensifies obviously when polishing between screen panel 101 and flexible polishing belt 103, need to guarantee the rice quality after the polishing to the rice in-process cooling.

Based on above-mentioned technical problem, both ends are fixed respectively around the quick-witted case 1 that this embodiment 2 connects flitch 107 top are provided with piston drawing liquid device 500 and piston air exhaust 600, and its piston drawing liquid device and piston air exhaust have constituteed an atomizing and have sprayed the mechanism, spray the mechanism through atomizing and spray to treating the polishing and spray the atomizing water, guarantee that follow-up polishing in-process rice temperature can not rise to too high, but also can increase the glossiness of polishing back rice.

Referring to fig. 1 and 5, the piston pumping device 500 includes a pumping piston cylinder 501 disposed parallel to the screen panel 101, a sealing piston is disposed in the pumping piston cylinder 501, and a first piston rod 502 extending out of the pumping piston cylinder 501 is connected to the sealing piston, while an outer end of the first piston rod 502 is connected to a first protrusion 503 of the smooth protruding plate 110. A liquid discharge pipe 504 is connected to the end of the liquid suction piston cylinder 501, a first check valve 505 is provided at the joint of the liquid discharge pipe 504 and the liquid suction piston cylinder 501, a plurality of atomizing nozzles 506 are connected to the lower surface of the liquid discharge pipe 504 at intervals, a liquid inlet pipe 507 is connected to the liquid suction piston cylinder 501, a second check valve 508 is provided on the liquid inlet pipe 507, and the end of the liquid inlet pipe 507 is communicated with the storage tank 700 on the upper surface of the case.

Similarly, the piston air extractor 600 includes an air extracting piston cylinder 601 parallel to the screen panel 101, a sealing piston is also disposed in the air extracting piston cylinder 601, and the sealing piston is connected with a second piston rod 602 extending out of the air extracting piston cylinder 601, and meanwhile, the outer end of the second piston rod 602 is connected with a second protrusion 603 on the other end smooth convex plate 110. An exhaust pipe 604 is connected to the end of the air-extracting piston cylinder 601, a third one-way valve 605 is arranged at the connection position of the exhaust pipe 604 and the air-extracting piston cylinder 601, a compressed branch pipe 606 corresponding to each atomizer 506 is connected to the lower surface of the exhaust pipe 604, and then the compressed branch pipes 606 are connected with the corresponding atomizers 506, so that the atomizers 506 are atomized by delivering compressed air. Finally, the air exhaust piston cylinder 601 is connected with an air exhaust pipe 607, the air exhaust pipe 607 is provided with a fourth one-way valve 608, and the end part of the air exhaust pipe 607 is connected with a filter and then directly extends out of the case 1.

When the rice polishing device disclosed in this embodiment 3 polishes rice, the piston liquid pumping device 500 and the piston air pumping device 600 which are provided in the device can continuously pump liquid and pump air along with the reciprocating motion of the screen panel 101, then the pumped liquid and compressed air are squeezed into the atomizing nozzle 506, finally, the atomized liquid is sprayed on the surface of the rice from the atomizing nozzle 506, and the rice sprayed with the atomized liquid enters the polishing gap for polishing. The structural design of whole atomizing spray mechanism is synchronous with the reciprocating motion of screen panel 101 mutually, not only need not to realize atomizing spray through setting up extra power supply, owing to synchronous mutually with the polishing process moreover to the volume of spraying when can the effective control polishing, the rice quality that the assurance polishing obtained.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.