313results about "Grain hulling" patented technology

The invention relates to the field of milled rice with embryo processing, in particular to a milled rice with embryo nutrition retention type crushing device. According to an existing crushing mode, crushing is conducted through high-speed grinding or mechanical rolling or blade cutting or other modes, so that nutritional ingredients in germs are prone to loss, the grading precision after crushing is insufficient, the particle size after crushing is uneven, and the quality of crushed milled rice with germs is poor. A germ rice nutrition retaining type crushing device comprises a mounting frame, a crushing disc is fixedly connected to the top of the mounting frame, and an air inlet pipe is arranged on the crushing disc. By reducing the temperature of the milled rice with embryos, the oxidation and decomposition rate of heat-sensitive nutrients in the embryos is reduced by utilizing a low-temperature environment, so that the milled rice with embryos is convenient to crush and the loss of cell sap is reduced; germ rice is driven by air flow to collide at a high speed in the cavity and is crushed into fine particles under the action of the upper lining plate, the inner lining and the lower lining, and nutritional films on the outer layers of germs are not prone to damage in a crushing mode without mechanical rolling, so that nutritional ingredients in the germs are efficiently reserved.

The invention relates to a rice mill control method and device and rice mill equipment. The rice mill control method comprises the steps that a to-be-milled object is milled according to a first rotating speed; wherein the to-be-milled object comprises cereals and / or brown rice, and the first rotating speed is the rotating speed corresponding to the cereals milled by the rice milling machine equipment; periodically acquiring target image data of the to-be-milled object through a visual sensor arranged on a circular processing channel of the rice mill equipment; determining the real-time type of the object to be ground according to the target image data and the reference image data; and according to the real-time type, the rotating speed of a motor of a grinding assembly of the rice mill equipment is dynamically adjusted until the to-be-ground object is ground into polished rice. According to the technical scheme, visual detection is combined with rotating speed self-adaptive switching, the rotating speed can be automatically switched according to the type of the to-be-milled object, it is ensured that grain husking and brown rice grinding are both in the optimal rotating speed state, and the rice milling effect and the processing quality are improved.

The utility model relates to the technical field of rice production, in particular to an efficient rice polishing machine, and aims to solve the technical problems that rice bran powder is easy to adhere to the surface of a polishing roller, needs to be cleaned at set intervals and is not easy to collect. The upper portion of the polishing barrel is tangentially communicated with a plurality of air inlet pipes, the air inlet pipes are obliquely arranged towards the discharging end of the polishing barrel from top to bottom, each air inlet pipe is communicated with a fan, the inner wall of the polishing barrel is connected with grinding materials, and an impurity discharging opening is formed in the portion, on the lower portion of the polishing barrel, of the side wall of the polishing shell. Under the action of inclined air outlet of the multiple tangential air inlet pipes of the polishing barrel, rice spirally moves towards the discharging end in the polishing barrel and makes full contact with grinding materials in the moving process to be polished, and rice bran powder and rice hulls penetrate through polishing barrel holes to move to the lower portion of the polishing shell and are discharged along with air through the polishing shell.

This invention discloses a rice-husk separation color sorting device and method, comprising a machine body, a support body, a color sorting machine body, and a separator. The color sorting machine body has red rice discharge bins, rice husk discharge bins, and brown rice discharge bins equidistantly installed on it. An operating unit is located below the red rice discharge bin, and a sorting unit is located below the brown rice discharge bin. A power unit is located inside the support body. This rice-husk separation color sorting device and method utilizes rubber rollers to perform rice-husk separation on red rice and paddy. A drive column can drive the rubber rollers to separate the red rice and paddy within the processing tank, eliminating the need to return them to the husk separator for further rice husk separation. Simultaneously, the air intake and filter holes separate the red rice and rice husks. Furthermore, based on the different shapes of indica and japonica rice, the two are separated through a fixed tank, a processing tank, an annular filter, a frame body, and filter holes.

The utility model provides a quick cleaning device for a rubber roller. The quick cleaning device comprises a case, a first transmission assembly is installed on the outer surface of the machine box and connected with a first rubber roller and a first cleaning assembly, a moving hole is formed in the position, located on one side of the first transmission assembly, of the outer surface of the machine box, a dovetail groove is formed in the inner cavity wall of the moving hole, and a moving plate is slidably connected into the dovetail groove. A second transmission assembly is installed on one side of the moving plate and connected with a second rubber roller and a second cleaning assembly. The first transmission assembly comprises a first arc-shaped block, the outer surface of the machine box is fixedly connected with the first arc-shaped block, a first transmission rod is rotationally connected into the first arc-shaped block, and one end of the first transmission rod is fixedly connected with a first belt wheel. According to the rubber roller cleaning device, the surface of the rubber roller can be cleaned through mutual cooperation of the first cleaning assembly, the second cleaning assembly and the dust collection assembly.

A grain milling device (100) is provided with a cylindrical case (10) which is formed in a cylindrical shape and in which porous wall sections (11) divided into a plurality are continuously provided, and a grain milling roller (30) which is rotatably disposed within the cylindrical case (10), and a grain milling chamber (15) is formed between the inner peripheral surface of the cylindrical case (10) and the outer peripheral surface of the grain milling roller (30), a grinding part (13) which is in contact with grains is arranged on the inner peripheral surface of the cylindrical shell (10), the grinding part (13) is provided with a plurality of convex parts (1311) which protrude towards the inner peripheral surface of the cylindrical shell (10), and the convex parts (1311) are configured in a manner that protruding parts (1313) can be assembled and disassembled in embedding holes (1312) formed in the grinding part (13).

The invention relates to low-damage endosperm rice and a preparation process thereof. Specifically, the invention provides a brown rice milling method, the method comprises the steps of unhusked rice opening and fine milling, and the method comprises the step of controlling the protein retention rate, the damaged starch content and the protein-to-ash ratio of milled brown rice to be in the following ranges: the protein retention rate is 88.0% or above, the damaged starch content is 0.480% or below, and the ash-to-protein ratio is 0.055 or above.

The utility model discloses a grain hull breaking extruder which comprises a box body, the top end of the box body is fixedly connected with a discharging hopper, the upper end of the inner side wall of the box body is fixedly connected with a bearing frame, the side wall of the bearing frame is provided with a plurality of filtering holes, and the inner side wall of the box body is rotationally connected with two rotating rods in a penetrating mode. Two rotating rods are arranged in the box body, one ends of the two rotating rods extend to the outer end of the box body, extrusion rollers are fixedly connected to the rod walls of the two rotating rods in the box body, transmission gears are fixedly connected to the rod walls of the two rotating rods close to the outer end of the box body, the two transmission gears are in meshed connection, and a motor is fixedly connected to the outer wall of the box body. The output end of the motor is fixedly connected with one rotating rod, a fan is fixedly connected to the position, close to the lower end of the motor, of the outer wall of the box body, the output end of the fan extends into the bearing frame, the other outer wall of the box body is fixedly connected with a waste chip box, and the shell breaking efficiency can be improved through the multiple extrusion channels.

The invention relates to a rice husking machine which comprises a rice husking bin and a drying system. The drying system comprises an air duct structure, a fan and a drying adsorption part. An airflow channel is arranged in the air duct structure and provided with an air inlet end and an air outlet end which are spaced from each other. The fan communicates with the airflow channel and is configured to drive airflow to flow from the air inlet end to the air outlet end. The drying adsorption part is arranged in the airflow channel. The air duct structure has a drying state and a regeneration state which can be switched mutually. In the dry state, the air inlet end and the air outlet end are both communicated with the rice milling bin. In the regeneration state, the air outlet end is communicated with the outside of the rice mill. According to the rice husking machine, under the dry state, the fan can drive the airflow to circulate in the rice husking bin, so that the humidity in the rice husking bin is reduced. In the regeneration state, the fan can drive the airflow to be blown out of the rice milling machine to form external circulation, so that moisture adsorbed by the drying adsorption part is discharged out of the rice milling bin, regeneration of the drying adsorption part is achieved, and frequent replacement by a user is not needed.

The invention discloses the technical field of rice grain grinding production, and discloses a rice huller, main body equipment used for rice hulling and a low-speed roller in the rice huller. The low-speed roller is composed of a plurality of sleeves. The inner walls of the sleeves are fixedly connected with inner gear rings, the sleeves are internally provided with first gears, the first gears are externally connected with sensors, and the sensors are used for detecting the torque of the first gears to the first shafts. An adjusting mechanism, a pressure mechanism and a control mechanism are arranged at each gear; the low-speed roller is composed of the multiple sleeves, the distance between each sleeve and the high-speed roller can be automatically adjusted according to self pressure, then dynamic pressure adjustment is completed, meanwhile, due to the fact that the adjusting processes of the sleeves are mutually independent, the defect that in a traditional scheme, an integrated low-speed roller can only conduct overall pressure adjustment can be effectively overcome, and the overall pressure adjustment efficiency is improved. The pressure adjustment of the low-speed roller on the rice is more refined, so that the hulling rate of the rice is effectively improved, and the broken rice rate of the rice is reduced.

The utility model belongs to the technical field of rice processing, and particularly relates to a polishing machine for rice processing, which comprises a processing box, support legs are mounted at two ends of the processing box, a feed hopper is arranged at the upper end of the processing box, an adjusting component is arranged in the feed hopper, a bearing plate is mounted at one end of the processing box, and the bearing plate is connected with the processing box. Two grinding rollers are rotationally connected into the treatment box, two polishing motors are installed at one end of the treatment box, output shafts of the two polishing motors are connected with the two grinding rollers correspondingly, two sliding grooves are formed in the upper end of the bearing plate, and sliding blocks are slidably connected into the two sliding grooves correspondingly. The upper ends of the two sliding blocks are jointly provided with a material box. Through the limiting assembly, rice bran chippings can be detached and cleaned conveniently, and practicability is improved; and through the arrangement of the adjusting assembly, the feeding amount of the rice can be adjusted, the phenomenon that the rice cannot be fully polished due to excessive feeding at a time is avoided, and the polishing effect is improved.

The invention provides a rhizoma polygonati seed continuous peeling machine, which relates to the technical field of agriculture and comprises a water tank, a grid horizontally arranged in the middle of the water tank and a plurality of rubbing mechanisms positioned in the water tank above the grid, the rubbing mechanism comprises two fixed belt wheels, two movable belt wheels and a rubbing belt pulled between the two fixed belt wheels and the two movable belt wheels, the fixed belt wheels are rotationally connected to the side wall of the water tank, the movable belt wheels are rotationally connected to an installation block, the rubbing device further comprises a transverse guide groove formed in the side wall of the water tank, a sliding block is slidably connected into the guide groove, and the sliding block is connected with the transverse guide groove. A first guide rod is longitudinally connected to the sliding blocks in a sliding mode, the lower end of the first guide rod is fixed to a middle block, two second guide rods located on the same straight line are fixedly arranged on the middle block, the two second guide rods are connected to the two sliding blocks in a sliding mode respectively, and first pre-tightening springs arranged on the first guide rod in a sleeving mode are arranged between the sliding blocks and the middle block. A second pre-tightening spring arranged on the second guide rod in a sleeving mode is arranged between the mounting block and the middle block. The method has the advantages of high efficiency and the like.

The efficient rice huller comprises a rice huller body, the rice huller body comprises a feeding bin, a grinding bin and a base which are sequentially fixed from top to bottom, a discharging bin is fixedly connected to an outlet of the grinding bin, a slag discharging pipe is fixedly connected to the top of the discharging bin, and a discharging opening is formed in the bottom of the discharging bin; the first direction of the grinding bin is perpendicular to the front end face of the rice huller body. A stop block is fixedly connected to the top face of the grinding bin, a guide groove is formed in the bottom of the stop block, a scraping plate is slidably connected into the guide groove, the bottom face of the scraping plate abuts against the periphery of the movable wheel, a spring is fixedly connected into the guide groove, and the spring is fixedly connected between the top face of the scraping plate and the top face of the guide groove. And an outlet of the feeding bin communicates with the grinding bin through a guide pipe.

The utility model relates to rice peeling equipment based on airflow assistance, which comprises a box body, a feeding hopper is arranged at the top of the box body, a peeling assembly is arranged below the feeding hopper, a material distributing assembly capable of intermittently discharging materials is arranged between the feeding hopper and the peeling assembly, and a separating area for separating rice from grain peels is arranged on the box body below the peeling assembly. The separating area is provided with a scattering assembly used for scattering a mixture of rice and grain husks at an outlet of the distributing assembly, the separating area is provided with an air outlet below the scattering assembly, the separating area is provided with an air inlet opposite to the air outlet, and the box body is provided with an exhaust fan at the outer end of the air outlet. The outlet end of the exhaust fan is detachably connected with a breathable yarn bag used for collecting grain husks, the bottom of the separation area is in the shape of an inclined face inclining outwards and downwards, a discharging port is formed in the position, at the end point of the inclined face at the bottom of the separation area, of the box body, and a sealing door is hinged to the discharging port. The rice husking machine has the advantages of being good in rice husking effect and clean in separation of rice and rice husks.

The utility model relates to the technical field of rice processing, in particular to an internal pressure measuring and controlling device of a rice polishing machine, which comprises a polishing roll, a roll screen is arranged outside the polishing roll, a plurality of groups of support ribs are distributed on the outer wall of the roll screen, and the support ribs are fixedly welded with the surface of the roll screen. A supporting frame is arranged between every two adjacent supporting rib pieces, the two ends of each supporting frame are fixed to the corresponding supporting rib pieces through screws, a plurality of cushion blocks are distributed on the inner side of each supporting frame, strain gauge carriers are arranged on the sides, close to the roller screen, of the cushion blocks, and the supporting frames, the cushion blocks and the strain gauge carriers are fixed through screws. The construction of the internal pressure detection system of the polishing machine is completed by designing a multi-point strain gauge measurement sensor and a multi-path acquisition module; based on measurement data of an internal pressure detection system, quantitative analysis on the influence of factors such as the position of a pressing weight, the rotating speed and feeding control on the polishing pressure is achieved.

The utility model discloses a double-air-inlet emery roll rice mill for processing brown rice, which comprises an emery roll rice mill body and a dust removal mechanism, the emery roll rice mill body is provided with a feeding cylinder, and the side wall of the emery roll rice mill body is provided with a discharge port; a feeding port is formed in the feeding cylinder, a connecting column body is axially arranged in the feeding cylinder, a rotating cover plate is movably connected to the connecting column body, the rotating cover plate can be located at a first position or a second position, when the rotating cover plate is located at the first position, the rotating cover plate is used for covering the feeding port, and when the rotating cover plate is located at the second position, the rotating cover plate is used for covering the feeding port. The brown rice processing device has the advantages that the problems that in the prior art, due to the fact that a corresponding sealing mechanism is not arranged at a feeding port of brown rice processing equipment, dust generated in the brown rice processing process easily floats outwards from the feeding port and floats in the air, the working environment of workers is affected, and the working efficiency of the workers is affected are solved. And after the dust is inhaled into the respiratory tract by a worker, the body health is easily influenced.

The invention discloses a laboratory multifunctional rice mill which comprises a rice milling unit and a quality detection unit, the rice milling unit is composed of a rice milling machine body and a machine cover arranged on the rice milling machine body, the quality detection unit comprises an image acquisition unit arranged on the rice milling unit, and the image acquisition unit is connected with a processor arranged on one side of the rice milling machine body. The rice milling machine is simple in structure, low in input cost, small in occupied space, capable of completing rice milling and rice grain quality detection at a time, time-saving and efficient in operation, good in practicability and high in generalization performance.

The utility model relates to the technical field of rice production, and discloses a rice leakage monitoring device of a rice polishing machine, which comprises a polishing machine body, a leakage discharge groove, a partition door and a positioning component, a feeding bin and a chip discharging bin are fixedly arranged on the outer side of the polishing machine body, the leakage discharging groove is formed in the outer side of the chip discharging bin, and the partition door can move in the height direction of the leakage discharging groove. The rice polishing machine has the advantages that when rice is polished, scraps are discharged through the scrap discharging bin, leaked rice grains are received through the filter screen, the leaked rice can be stacked through the inclined structure of the filter screen, the situation of the leaked rice is detected through the detector, and when the leaked rice needs to be processed, only the positioning assembly needs to be operated, and the leaked rice can be processed. According to the rice leakage detection device, the baffle door can be opened, so that leaked rice can be quickly discharged from the through hole, the leaked rice can be recovered while the leaked rice is detected, and waste is avoided.

The utility model discloses a rice polishing machine for rice processing. The rice polishing machine comprises a bearing support and a driving motor fixedly installed below the right side of the bearing support. A polishing mechanism is arranged in the bearing support and comprises a polishing roller, chip removal groove holes are formed in the top face of the polishing roller at equal intervals, and a closable feeding and discharging opening is formed in the top of the right side of the polishing roller. Wherein a material uniformizing mechanism is arranged in the bearing support, the material uniformizing mechanism comprises a material uniformizing rotating shaft, and the material uniformizing rotating shaft is rotationally arranged in the center of the interior of the bearing support through a bearing. According to the rice polishing machine for rice processing, through reverse rotation between the polishing roller and the material uniformizing support, rice is assisted to be subjected to multi-directional friction mixing in the gun barrel roller, meanwhile, air is conveyed in the polishing roller for removing scraps and positioning incense coils, and then rice bran is discharged from scrap discharging groove holes under driving of water flow and the air; and thus, auxiliary separation is realized.

The utility model relates to the field of corn grit making, in particular to a corn grit making machine which comprises a supporting table. The device further comprises a supporting plate and a third motor, a supporting base is installed at the end of one side of the supporting table, the supporting plate is fixedly connected to the end of one side of the supporting base, a hydraulic push rod is installed at the upper end of the supporting plate, a moving frame is installed on the hydraulic push rod, and the third motor is installed on the inner side of the moving frame. The peeling device and the grit making device are supported through the supporting table, the supporting base and the supporting plate, the third motor drives the grit making roller to rotate to make corn grits, and the hydraulic push rod drives the moving frame and the third motor to move so as to drive the grit making roller to move, adjust the grit making specification and cooperate with the second grit making frame to assist in grit making. The third motor and the grit making roller are matched with the second grit making frame to adjust the grit making position and effect, the supporting base, the supporting plate and the pressing and pushing rod are used for driving the movable frame to move, the third motor and the grit making roller are driven by the movable frame, and the grit making specification is adjusted.

The utility model relates to the technical field of rice hullers, and discloses a rice huller rubber roller capable of preventing high-temperature damage, which comprises a machine shell, a feeding hole is formed in the top end of the machine shell, a material receiving groove is formed in one side of the bottom end of the machine shell, a shell receiving groove is formed in the other side of the bottom end of the machine shell, and a shell removing mechanism is arranged in the machine shell. Wherein the shelling mechanism is located below the feeding port, one end of the shelling mechanism extends out of the machine shell and is fixedly connected with an air cooling mechanism, an air blower is arranged on the side face of the machine shell and above the material receiving groove, a first fixing rod is fixedly connected to the inner wall of the machine shell, and a moving roller is movably connected to one side of the top end of the first fixing rod; the movable roller is arranged, the movable roller comprises the rubber layer with the outer layer making direct contact with rice and the annular plate with the inner layer providing support, the rubber layer is made of high-abrasion-resistance rubber and is better in heat resistance, the long-strip-shaped grooves in an annular array are formed in the inner wall of the annular plate, the inner heat dissipation area of the rubber roller can be increased, and the heat dissipation efficiency is improved.

This invention provides a screen structure that can improve the bran removal performance of a bran removal wire mesh tube. [Solution] A screen structure comprising a wire mesh tube for removing bran in a grain milling machine, comprising a screen 2 having a large number of bran removal holes, a feed plate for restricting the movement of grains, and a holder 4A disposed on the outer surface of the screen 2 and detachably fixing the feed plate on the inner surface of the screen 2.

The utility model discloses a hulling device for rice processing, and relates to the technical field of rice hulling. The box comprises a box body. Unhulled rice is poured into the hulling device body to be hulled, so that a rice and rice hull mixture falls onto the surface of the separation roller, and then the first driving assembly is started to be matched with the rotating shaft to drive the separation roller to rotate to impact the rice and rice hull mixture; the air blowing assembly blows flying rice hulls into a rice hull pipe arranged on one side of the bottom end of the U-shaped frame in a communicating mode and is sprayed out, meanwhile, the separation roller drives a spiral conveying blade to push rice, and the rice falls into the top end of a flow dividing plate through the rice pipe; according to the rice hulling device, separation can be conducted in the rice hull and rice separation stage and in the rice fine screening process, the situation that rice hulls fall onto the screening assembly and block the screening assembly is avoided, the rice hulls and the rice hulls can be divided through the rice hull pipe and the rice pipe correspondingly, and therefore the practicability of the rice hulling device is improved.

The utility model provides a rice huller for rice processing. The rice huller for rice processing comprises a box body, a feeding hopper is installed at a feeding port in the top of the box body, a plurality of flow guide pipes are evenly installed at the top in the box body and communicate with the feeding hopper, a plurality of rotating shafts are evenly installed between the inner walls of the front side and the rear side of the upper end of the box body, and rubber rollers are installed on the outer walls of the rotating shafts; the rear ends of the multiple sets of rotating shafts penetrate to the outer wall of the box body, and gears are installed at the rear ends of the rotating shafts. According to the rice huller for rice processing, when the output end of the motor rotates, the transmission rod is driven to continuously rotate through the belt linkage effect of the first belt wheel and the second belt wheel, the transmission rod continuously drives the threaded block to move front and back through the reciprocating lead screw, and therefore the scraper moves back and forth along the guide rod; and unhulled rice accumulated on the rubber roller is continuously and uniformly spread, so that the purpose of uniformly feeding is achieved.

The invention relates to rice milling equipment, and relates to the technical field of rice milling machines. The rice milling equipment comprises a rice milling assembly and a rice discharging assembly, and the rice milling assembly is provided with a rice discharging opening; the rice discharging assembly comprises a sliding block, a blocking piece and an elastic piece, one end of the sliding block is connected with the blocking piece, the two ends of the elastic piece are connected with the blocking piece and the sliding block respectively, at least part of the blocking piece can be completely embedded into the rice discharging opening, and the sliding block can be controlled to slide relative to the rice milling assembly. Therefore, the blocking piece is driven to close or open the rice discharging opening. The control precision of the plugging piece can be improved, and friction loss and noise in the sliding process of the plugging piece are reduced.

The utility model provides a rice husking device for rice production, and belongs to the technical field of rice production. The rice husking device for rice production comprises a husking assembly and a screening assembly, a driving base is arranged in a machine shell, firstly, the husking effect can be achieved through a first husking roller and a second husking roller, and the rice attached to the surfaces of the first husking roller and the second husking roller can be cleaned through the driving base, a telescopic rod and a cleaning brush; according to the rice husking machine, rice husks are separated from a first husking roller and a second husking roller, more rice is prevented from being attached to the surfaces of the first husking roller and the second husking roller, the rice discharging flow can be controlled through two baffles, the vertically falling rice is continuously blown through a fan, so that rice and rice husks can be screened, and a first collecting box and a second collecting box are used for containing the rice and the rice husks correspondingly; further, rice attached to the surfaces of the first hull breaking roller and the second hull breaking roller can be cleaned, meanwhile, rice and rice hulls can be conveniently screened, and therefore the practicability is improved.

The utility model discloses a rice polishing device for rice processing, which comprises a rack, one side of the rack is fixedly connected with a fixed pipe, the fixed pipe is internally and rotatably connected with a rotating pipe, the outer side of the rotating pipe is fixedly connected with a conveying roller, the rack is fixedly connected with a reticulated shell, the rotating pipe is fixedly connected with a central pipe, the central pipe is positioned in the middle of the reticulated shell, and the conveying roller is fixedly connected with the rotating pipe. The outer side of the central pipe is sleeved with a polishing roller, the polishing roller is fixedly connected with the material conveying roller, a fixing piece is arranged on the other side of the machine frame, the extrusion piece is fixedly connected with threaded rods at equal intervals in the circumferential direction, the threaded rods are sleeved with the fixing piece, the fixing piece is fixedly connected with a limiting sleeve, and the adjacent threaded rods are sleeved with the limiting sleeve. Through the linkage type limiting structure and the spring locking design, the constraint of the limiting sleeve can be quickly relieved through one-hand operation. And compared with a traditional double-nut or gasket anti-loosening scheme, the disassembly efficiency of the fastener during maintenance of the polishing roller is improved.

The utility model relates to the field of rice hullers, and discloses a uniform blanking rice huller, which comprises a fixed frame, and a rice huller main body is fixedly arranged on the inner wall of the rear side of the fixed frame. After hulling is completed, rice can be discharged from the position of a dust discharge guide frame through cooperation of a driving shaft and dust discharge fan blades, more sundries and rice can fall to the top of a sundry screening plate, and the rice can be screened and discharged from the position of the dust discharge guide frame through a discharging guide block for discharging; and when a second rotating shaft rotates, a movable shaft and a striking block can be driven to rotate through cooperation of a second bevel gear, after the striking block rotates, an impurity screening plate can be vibrated, the rice above the impurity screening plate is prevented from being stacked, the screening effect of the device is good, and after an impurity discharging baffle is opened, impurities can be discharged and collected.

The utility model discloses a rice fine peeling roller set device with controllable spacing, which relates to the technical field of rice processing and comprises a peeling machine, a servo motor is fixedly mounted on the left side of the upper surface of the peeling machine, and a lead screw is mounted at the upper end of the servo motor. And a guide rod is fixedly installed on the left side of the upper surface of the peeling machine and located on the front side of the servo motor, the surfaces of the lead screw and the guide rod are sleeved with the same adjusting block, a rotating motor is fixedly installed on the right side of the surface of the adjusting block, and a shaft rod is installed at the right end of the rotating motor. Compared with an existing common rice fine peeling roller set device, the rice fine peeling roller set device with the controllable interval can flexibly adjust the interval between the extrusion rollers according to the peeling requirements of rice with different particle sizes, the situation that rice particles are too small and cannot be fully extruded and peeled is avoided, and the rice fine peeling efficiency is improved. Or the situation that the rice grains are excessively extruded and damaged due to the fact that the rice grains are too large is avoided, the use flexibility of rice peeling is fully improved, and the rice peeling quality is guaranteed.