JPS6151942B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to an integrated milling machine for rice grains, which is equipped with a rough sorter, a centrifugal remover, and an inclined rice miller.

``Prior art'' The rice milling industry is an important part of the civilian industry, and has shown signs of booming in recent years due to the prosperity and progress of commerce and industry, but the progress of rice milling machines is still at a standstill, and most of them are outdated. It is. Even if there are some improvements, conventional rice milling machines have remained the same type and are configured with traditional low efficiency, which is truly unacceptable from the viewpoint of efficiency and quality, and has not been able to meet the demands of the times. It was something I couldn't do.

After painstaking research and several years of effort, the present inventor has developed, for the first time, an integrated rice milling machine capable of removing and polishing rice grains. This working machine completely improves the shortcomings of general rice milling machines, increases rice milling efficiency, and reduces rice crushing rate, and is indeed the basis for the development of the future rice milling industry.

FIG. 2 shows a plan view of a typical de-machine. In this figure, rice grains are fed from an injection hopper 31 through a feed rate regulator 32 and between two rubber rollers 33, and the rice husks are peeled off at different rotational speeds of these rubber rollers 33. The gap between these rubber rollers 33 is adjusted by an adjustment lever 331, but since the sizes of rice grains are generally uneven, even if the rice grains are adjusted optimally, the shedding rate does not improve. In addition, if the rice grains are pressed with a hard rubber, there is a risk that the unpolished rice will turn into broken rice after being removed.Especially, rice grains with elongated grains have uneven internal density and are brittle and break easily, so the removal rate by the rubber rollers 33 is approximately It is 30%. Additionally, rice grains, rice husks, brown rice, and broken rice are separated depending on their weight when they fall. Therefore, the rice husks are removed from the exit fan 34.
The rice husks are sucked out from the rice husk outlet 37 by the suction force generated by the rice husks. Since brown rice and rice grains are relatively heavy, they directly flow out from the brown rice and rice grain outlet 35, and broken rice having an intermediate weight flows out from the broken rice outlet 36.

Figure 8 shows a general rice milling machine in which brown rice is milled by moving it laterally. In this rice polishing machine, brown rice flows from an injection hopper 41 through a flow rate adjustment plate 42 into a rotating spiral rod 43, and is forced into a rice polishing chamber 44. In the rice polishing chamber 44, brown rice is rotated and rubbed against each other while generating high pressure, and is separated into white rice and rice bran. The internal pressure of this rice polishing chamber 44 is
When the pressure exceeds the pressure of a spring 451 attached to the spring 451, the polished rice and rice bran flow out from the outlet pressed by the pressing plate 45, and the amount of outflow is controlled by adjusting the degree of opening of the outlet. White rice and rice bran are sieved in a vibrating tilted sieve tank to obtain white rice.

``Problems that the invention seeks to solve'' Conventional demachining has a poor yield rate for brown rice, and rice grains are
The rice husk cannot be completely removed unless it is passed between the rubber rollers 33 five times, so the rubber rollers 33
As the demand for power increases, costs rise further,
Moreover, the wear rate of the rubber roller 33 also increases, which is uneconomical.

In addition, conventional rice milling machines have poor rice milling effects, and in addition to breaking the rice grains well, it is usually necessary to pass the rice through the mill five to six times in order to obtain perfectly polished white rice. Therefore, complicated operations are repeated, rice milling time is long, and power consumption is extremely large. For this reason, the motors used in rice milling machines all reach over 15 horsepower, which results in a large waste of energy in operation and does not meet the requirements of economy and practicality.

"Means for Solving the Problems" According to the present invention, there is provided a corrugated sieve plate in which a plurality of holes are formed and dampers are arranged parallel to a plane along the inner edge, and dampers arranged in the valleys of the sieve plate. a coarse sorter having several rotatable screw shafts, at least one main centrifugal remover and a secondary centrifugal remover to which a rotatable central shaft is connected; a cylindrical rice polishing tank installed at an angle on a frame; a tooth-shaped rice polisher rotatably disposed within the rice polishing tank; ,
An inclined rice milling machine comprising several partition plates fixed to the inner wall of the rice milling tank, a brown rice inlet formed near the upper end of the rice milling tank, and a polished rice outlet located at the lower end of the rice milling tank. An integrated rice milling machine including:

"Embodiments" Examples of the present invention will be described below with reference to the drawings.

Referring to FIG. 1, the present invention provides a centrifugal desorption machine
and an inclined rice milling machine 2. The operating procedure is as follows: First, rice grains to be de-milled are injected from the rough sorter 11, and impurities such as weeds, straw, and stones mixed in the rice grains are removed. As shown in FIG. 3, this rough sorter 11 includes a sine wave-shaped sieve plate 111 and several screw shafts 112 arranged in valleys at the inner edge of this sieve plate 111. These screw shafts 112 are connected to the chain wheel set 1 to which power is transmitted from the deceleration motor 12.
21 and rotated at the same time. Next, the rice grains that have been sieved by the coarse sorter 11 pass through a dechamber 13 having a cylindrical outer shape, where the rice husks are naturally removed. As shown in FIG. 4, this chamber escaper 13 includes a main centrifugal escaper 131, an auxiliary centrifugal escaper 132, and a rubber liner 133. A central shaft 134 is connected to each of the main centrifugal escaper 131 and the auxiliary centrifugal escaper 132, and rotational force is transmitted via a belt 142 from a motor 14 equipped with a continuously variable transmission 141 located outside the escaper 13. and is supplied to the central shaft 134. When the rice grains are husked, the rice husks and brown rice are forced into the worm disk 151 via the transport pipe 15 by the wind pressure formed in the main centrifugal chamber 131 and separated. This worm disk 1
A rubber buffer block 152 is provided within the worm disk 51 to prevent brown rice from colliding with the inner edge of the worm disk 151 and breaking it. Furthermore, the rice husks and some brown rice rotate along the inner wall of the worm disk 151 due to wind pressure, are blown out from the outlet, and are sent to the storage 15.
However, most of the brown rice is heavier than the rice husks, so it naturally falls from the outlet at the bottom to the inlet 221 of the inclined rice miller 2.

In this inclined rice polishing machine 2, the rice polishing tank 22 is arranged in an inclined manner, so that when brown rice is injected from the inlet 221, the brown rice is transferred to the tooth-shaped rice polisher 2 in the rice polishing tank 22.
It slides between the partition (roller) plate 25 and is rolled, and is separated into polished rice and rice bran waste, and the rice bran waste is removed. On the other hand, polished rice flows out from the outlet 225 at the bottom end of the rice polishing tank 22, falls into a hopper-shaped container on the transport belt 26, and is transported upward. The white rice transported to the upper end is stored in the lower storage area 27 with the remaining rice bran waste.
1, it passes over an inclined sieve screen 27 and flows into a packaging bag for polished rice from a hopper-shaped outlet 28.

FIG. 3 is a detailed diagram of the coarse sorter 11 of the present invention. Conventional dehulling uses a vibrating sieve screen as a rough sorter, so it is suitable for injecting rice grains with little impurities, but when rice grains with slightly more impurities are injected, they become extremely clogged. There are many cases where work must be stopped and cleaning to remove impurities. The rough sorting machine of the present invention includes a triangular wave-shaped sieve plate 111 in which many sieve holes are formed, several screw shafts 112, and a sieve plate 111.
11 and a large number of dampers 113 arranged in parallel along each plane of the inner edge of the sieve. The remaining rice grains pass through the sieve holes at the bottom of the sieve plate 111, and impurities such as weeds, straw, and stones larger than the rice grains are removed by the damper 1.
Since the width of the screw 13 is relatively narrow, it falls between the teeth of the rotating screw shaft 112 and is moved to the outlet. Therefore, the rice grains from which impurities have been removed are smoothly transferred to the dechamber 13 without clogging.

In FIG. 4, the chamber removal 13 of the centrifugal removal machine 1
is the main centrifuge 13 connected to the central shaft 134
1, an auxiliary centrifugal remover 132 connected to the main centrifugal remover 131, and a rubber liner 133. Therefore, when the central shaft 134 rotates, the main centrifugal escaper 131 and the auxiliary centrifugal escaper 132 rotate at the same time.

Referring to FIG. 5, the main centrifuge 131 is
An annular plate 1311, a disc 1312 arranged parallel to this annular plate 1311, and these annular plates 131
1 and the outer peripheries of the disc 1312 at equal intervals, and an integrally molded rubber cover 1314 made of rubber or an elastic material and having a groove formed inside to fit with the separator 1313. FIG. 5A shows cross-sections of various embodiments of rubber covers 1314. Therefore, the separator plate 1313 fits into the groove of the rubber cover 1314 and is fixed with adhesive. Alternatively, by making one end of the groove of the rubber cover 1314 cone-shaped and fitting the conical part of each rubber cover 1314 into the part that contacts the annular plate 1311 and the disc 1312, the rubber cover 1314 can be made even during high-speed rotation. is fixed to the outer edges of the annular plate 1311, the disc 1312, and the separator plate 1313, and the rubber cover 1314 is exposed in the cross section of the outer edge portion. These rubber covers 1314 may have both outer corners cut off according to the type of rice grain, or one or more V-grooves may be formed on the outer surface to improve removal efficiency.

The rubber liner 133 is also an integrally molded product made of rubber or an elastic material, and as shown in FIG. 6, it has a cylindrical inner wall, a curved bottom surface that curves downward and inward from this inner wall, and an inner periphery of this curved bottom surface. It has a castle wall projecting upward from the castle wall, and a partially conical surface cut diagonally at the lower end of the castle wall.

The auxiliary centrifugal escaper 132 shown in FIG. 7 is an integrally molded product made of rubber or an elastic material, has a cylindrical outer shape, and has a plurality of semicircular arc-shaped stripes formed on the outer periphery.
A reinforcing convex ring 1321 is formed on the inner edge so that the main centrifugal escaper 131 does not fall off during high-speed rotation.

Referring to FIGS. 4, 5, 6, and 7, rice grains are first introduced into the internal hollow portion of the main centrifuge 131 through a circular hole in the annular plate 1311. here,
A strong centrifugal force is applied to the rice grains by the main centrifugal remover 131 rotating at high speed, and the rice grains are separated from the separating plate 1313.
The rubber cover 1
Collision with 314. When the rice grains collide with the rubber cover 1314 rotating at high speed, the rice husks are stripped off. At this time, the brown rice inside is heavier than the rice husks, so when centrifugal force is applied, it separates from the rice husks and completes the removal process. The rice husks and brown rice obtained from most of the rice grains and a small amount of rice grains are removed from the rubber liner through the gap between the main centrifugal remover 131 and the inner wall of the rubber liner 133 by wind pressure generated in the main centrifugal remover 131. 133, and when it collides with the curved bottom surface, it bounces through the upper part of the castle wall or through the gap, collides with the semi-circular striped outer surface of the secondary centrifugal escaper 132, and a small amount of rice grains The complete shedding of rice grains is almost achieved.

FIG. 9 shows a sectional view of the inclined rice milling machine 2 of the present invention. In this figure, a cylindrical rice polishing tank 22 is attached to a frame 21 at an angle. This rice polishing tank 2
At the upper end of the rice polishing tank 2, a motor 23 is attached, the central shaft 234 of which is arranged concentrically within the rice polishing tank. A tooth-shaped rice polisher 24 is attached to the central shaft 234, which includes several stages of roller tooth groups 241, several stages of reverse roller tooth groups 242, and a connecting shaft 243. On the inner wall of the rice polishing tank 22, there are holes between each set of roller tooth groups 241, between each set of reverse roller tooth groups 242, and roller tooth groups 4.
The partition plate 25 is fixed so as to be interposed between the roller tooth group 1 and the reverse roller tooth group 242. Figures 10 and 13
See Figures and Figure 14. A continuously variable transmission 231 and a blower 232 that generate wind in conjunction with the rotation of the tooth-shaped rice polisher 24 are attached to the motor 23 . This blower 232 blows air into the rice polishing tank 22 via a circulation pipe 233 to separate rice bran. Near the upper end of this rice polishing tank 22, a brown rice inlet 221 and a supply amount adjustment plate 222 for controlling the amount of brown rice to be poured are formed. Furthermore, a sieve screen 223 is installed near the suction port of the circulation pipe 233 of the rice polishing tank 22 to allow the rice bran blown away by wind pressure to pass therethrough. The rice bran falls into the storage 212 formed in the frame 21, and when a considerable amount of rice bran is accumulated, the door 2 of the frame is opened.
11 and taken out. On the other hand, polished rice flows out from an outlet 225 formed at the lower end of the rice polishing tank 22, and the flow rate is controlled by a flow rate adjustment plate 234.

When the inclined rice milling machine 2 of the present invention is operated, brown rice is injected from the inlet 221 into the rice milling tank 2.
2 is inclined, so it naturally slides down to the tooth-shaped rice polisher 24 placed at the bottom of the rice polishing tank 22. This tooth-shaped rice polisher 24 has a gap and a passage formed between each partition plate 25, so that the motor 23
After a while, the inside of the rice polishing tank 22 is filled with brown rice. In this case, the brown rice is forced downward and the tooth-shaped rice polisher 24 is rotating at 700 to 800 revolutions per minute, so the brown rice is constantly applied with appropriate pressure and stirring between the tooth-shaped rice polisher 24 and the partition plate 25. Due to friction, it is separated into rice bran and white rice. When the predetermined rice milling time has passed, the polished rice is automatically transferred to the outlet 22 by opening the flow rate regulating plate 224 to an appropriate amount.
It is leaked from 5. On the other hand, the crushed husks, miscellaneous powder, and miscellaneous grains contained in the rice bran and brown rice generated by the friction caused by stirring are blown away by the powerful wind force generated by the blower 232 at the same time as the rolling movement of the rice grains. , falls from the sieve screen 223 and is deposited in the reservoir 212 inside the frame.
If the operator engages in the continuous and continuous operation procedure in this way, brown rice is constantly injected from the brown rice inlet 221, and polished white rice continuously flows out from the polished rice outlet 225.

Further, referring to FIGS. 10, 13, and 14, the special structural design of the tooth-shaped rice polisher 24 and the partition plate 25 is the most innovative part of the inclined rice mill 2. This tooth type rice polisher 24 includes several stages of roller tooth groups 241 and several stages of reverse roller tooth groups 242.
and a connecting shaft 243 are integrally connected.
For example, in FIG. 10, there are three stages of roller tooth groups, one stage of reverse roller tooth groups, and a connecting shaft, and in FIG. 13, one stage of roller tooth groups, three stages of reverse roller tooth groups, and a connecting shaft are provided. There is. Further, in FIG. 14, it is composed of a connecting shaft 243 and a group of four reverse roller teeth 242.

The partition plates 25 are attached to the inner circumferential surface of the rice polishing tank 22, which has a cylindrical outer circumferential edge, and are respectively arranged between a group of roller teeth in one stage and a group of roller teeth in the next stage. Each partition plate 25 is a circular plate with two sector shapes punched out from above and below, as shown in FIG. 12, and the tooth-shaped rice polisher 24 can be inserted into the punched portion. This partition plate 25 can replace two independent sector plates, each of which is directly attached to the inner wall of the rice polishing tank 22. When each fan-shaped plate is fitted and attached to the inner circumferential side of the rice polishing tank 22, the inner circumferential surfaces of the top and bottom parts are smooth, so a passage is formed on the inner circumferential bottom of the rice polishing tank 22, and the rice grains are This helps the polished rice to easily flow along the rice polishing tank 22 to the tooth-shaped rice polisher 24 and to easily flow out from the outlet 225.

Each roller tooth group 241 includes at least two roller teeth 2411. On the other hand, the reverse roller tooth group 242 also includes at least two reverse roller teeth 2421
Contains. These roller teeth 2411 or reverse roller teeth 2421 have a wedge-shaped block whose outer shape is inclined in the axial direction, and have a flat surface perpendicular to the axis of the connecting shaft 243 and a wedge-shaped block whose outer shape is inclined with respect to the axis and the axial direction. It forms a wavy curved slope. Therefore, when the tooth-shaped rice polisher 24 rotates, the brown rice is separated from the roller teeth 2411 or the reverse roller teeth 242.
It rotates and moves on the curved inclined surface of No. 1, generates mutual friction between the rice grains, strips off rice bran and waste, and accomplishes rice polishing.

In addition, the tooth-shaped rice polisher 24 has several stages of roller tooth groups 2.
Since each of the 41 roller teeth 2411 are all inclined toward the axial direction along the circumferential direction, when they correspond to the two fan-shaped plate portions of the partition plate 25 during rotation,
The corresponding movement creates a phenomenon in which the space becomes smaller and smaller, and the brown rice placed between them rotates and moves on the wavy inclined surface of the roller teeth 2411.
The brown rice is gradually compressed and rubs against each other, and furthermore, each roller tooth 2411 is tilted toward the axial direction, and centrifugal force is also applied, so that the brown rice turns and rolls in the triple-polishing space, and the rice bran on the surface layer is removed. is completely removed. Also, when brown rice rotates, it rotates on the outer edge of the connecting shaft 243, so if the brown rice rotates on the outer edge of the connecting shaft 243,
If the outer diameter of No. 3 is smooth, it will reduce the compression force and rolling effect of the rice grains.

In the embodiment of the present invention, the tooth-shaped rice polisher 24 includes:
As shown in FIGS. 10, 13, 14, and 11, the thickness of a single arc-shaped damper is added between the two roller teeth 2411, so that when the tooth-shaped rice polisher 24 rotates, rice grains are stay in original position,
It does not result in no overall stirring and turning effect;
The rotating stirring operation takes into account the degree of rolling,
The rice polishing effect can be improved. In addition, when the tooth-shaped rice polisher 24 rotates to the hollow fan-shaped portion between the roller teeth 2411 and the partition plate 25, the rice grains that are rolled and compressed for the first time are lifted upward from the hollow fan-shaped portion of the partition plate 25. It will be done. In this way, the bottommost roller tooth group 241 of the brown rice is gradually lifted upward, but due to rotational friction between the roller tooth group 241 at each stage and the partition plate 25, the brown rice reaches a slightly upper layer of the tooth-shaped rice polisher 24. being pushed away. This brown rice faces the inclined curved surface of the reverse roller tooth 2421 and the inclined curved surface of the neighboring roller tooth 2411, and the directions of the tips thereof are uniformly aligned.
That is, when rotating, speaking from a fixed point on the partition plate 25,
They are roller teeth 2411 and reverse roller teeth 2421.
Since the space between them is gradually decreasing, the reverse roller teeth 2421 have the effect of rolling friction in the same way as the roller teeth 2411, and also have the effect of transferring while rolling downward. Here, in order to improve the reverse roller teeth 2421, the effect of reverse shipping and the reduction of rice milling time, another embodiment of the tooth type rice polisher 24 is provided with reverse roller teeth, as shown in FIGS. 13 and 14. The number of stages in the group 242 is increased, and conversely, the number of stages in the roller tooth group 241 is decreased by the increased number. FIG. 14 shows several stages of reverse roller tooth groups 242.
It is composed of a chisel and a central shaft 243, and according to test results, the rice milling time is shortened and the rice milling effect is improved. After the brown rice is injected from the inlet 221 into the rice polishing tank 22 having an inclined angle, it is subjected to its own weight and the pushing and stirring action of the reverse roller tooth group 242.
After the brown rice is repeatedly turned over, turned over, and rubbed between the reverse roller tooth group 242 and the roller tooth groups 241 at each stage, the rice bran can be completely stripped off.

Roller tooth group 241 and reverse roller tooth group 242
is the roller tooth 2411 or the reverse roller tooth 242
The number of teeth of 1 can be increased by dividing it equally around the circumference according to the actual demand. The number of single arc-shaped dampers that add thickness to the connecting shaft 243 also increases accordingly, and the number of sector shapes formed on the partition plate 25 also increases. Its feature is that the number of roller teeth 2411 or reverse roller teeth 2421 is equal to the number of circular arc-shaped dampers on the connecting shaft 243 and the number of sectors of the partition plate 25.

Further, the number of stages of the roller tooth group 241 is determined according to actual demand, so that the rice grains that have passed through the rollers of the tooth type rice polisher 24 can complete a complete polishing operation of nearly 100% in one go, and continue to progress. Continuing the continuous inflow, constant roller, and outflow steps saves time and increases production.

"Effects of the Invention" As described above, the centrifugal threshing machine 1 of the present invention adopts the principle of centrifugation and utilizes the bouncing and collision of rice grains against the rotating soft material. Since the grain husks are easily torn apart and the brown rice is transported at the same time, there is no disadvantage of forcibly rolling it with ordinary rubber rollers, and it can also be applied to shell grains other than rice and rice (grains such as wheat). Moreover, even if the power is considerably reduced, the production volume increases, so it is truly beyond the reach of ordinary threshing machines.

In addition, the tilt-type rice mill 2 of the present invention adopts a tilt-type natural sliding system for pouring brown rice, and at the same time takes into consideration the work of stirring, turning, and rolling the tooth-shaped rice mill 24, so that it has a large horsepower. Compared to a general rice milling machine with the same amount of work, if the present invention uses 3HP of power, a common rice milling machine requires at least 10HP of power. In addition, general rice milling machines have a large volume and have poor rice milling effects, but the inclined rice milling machine 2 of the present invention
The rice polishing operation can be completed in one time, the rice polishing effect is good, and several rice polishing tanks 22 can be installed in the same piece of equipment.
Since the primary operation can be performed with the same motor or several motors, the production output will be improved.

In summary, the centrifugal threshing machine 1 and the tilting rice milling machine 2 of the present invention are specially designed by combining the threshing structure and the rice milling structure with natural principles, so they can handle everything from removing dirt from rice to threshing and brown rice. Everything from grain husk separation to refining into polished rice is an integrated process, so the process required for rice milling is completed in one go, and the design of each part is based on breakthroughs in the joint characteristics of various rice grains. As a major innovation, the present invention is not only extremely economical and practical, but also, from the perspective of a nation that relies on rice grains as food, it is truly an accomplishment in leading the development of the rice milling industry. Since this cannot be ignored, the present invention can be said to have great industrial value.

[Brief explanation of the drawing]

Figure 1 is a plan view showing the working procedure of the present invention, Figure 2 is a plan view showing the working procedure of the present invention;
The figure is a plan view of a general demolition machine, Fig. 3 is a partial sectional view of a coarse sorter of a centrifugal demolition machine of the present invention, Fig. 4 is a sectional view of a dechambering machine of a centrifugal decapitation machine of the present invention, and Fig. 5 is a FIG. 5A is a cross-sectional view of a rubber cover of various embodiments of the main centrifugal removing device of the present invention, and FIG. 6 is a portion of the rubber liner of the centrifugal removing device of the present invention. 7 is a perspective view of an auxiliary centrifugal remover, FIG. 8 is a structural diagram of a general rice mill, FIG. 9 is a sectional view of an inclined rice mill of the present invention, and FIG. 10 is a perspective view of an auxiliary centrifuge. FIG. 11 is a sectional view of the tooth-shaped rice polisher of the tilted rice mill of the present invention, and FIG. 12 is a front view of the partition plate of the tilted rice mill of the present invention. , FIG. 13 is a perspective view of a tooth-type rice polisher as another embodiment of the tilt-type rice polisher of the present invention, and FIG. 14 is a perspective view of a tooth-type rice polisher as another embodiment of the tilt-type rice polisher of the present invention. It is. 1... Centrifugal remover, 2... Inclined rice mill, 11... Rough sorter, 111... Sieve plate, 112... Screw shaft,
113...Damper, 13...Leaving room, 131...Main centrifugal remover, 132...Sub-centrifugal remover, 133...Rubber liner, 22...Rice polishing tank, 24...Tooth type rice polisher, 2
5...Partition plate, 221...Inlet, 225...Exit.

Claims (1)

[Claims] 1. A corrugated sieve plate in which a plurality of holes are formed and dampers are arranged parallel to a plane along the inner edge, and several rotatable screw shafts arranged in the valleys of this sieve plate. a coarse selector comprising at least one main centrifugal remover and a secondary centrifugal remover to which a rotatable central shaft is connected, and a rubber liner disposed outside the main centrifuge remover; A centrifugal dehydrator with a chamber, a cylindrical rice polishing tank that is installed at an angle on the frame,
A tooth-shaped rice polisher rotatably arranged in the rice polishing tank, several partition plates fixed to the inner wall of the rice polishing tank, a brown rice inlet formed near the upper end of the rice polishing tank, and the rice polishing tank. An integrated rice milling machine for rice grain, including a tilting rice milling machine having a polished rice outlet located at the lower end of the rice grain milling machine. 2. The main centrifugal escaper includes an annular plate, a disc disposed parallel to the annular plate, and a plurality of parts that stand upright at equal intervals radially from the outer periphery of the annular plate and fix between the disc and the disc. and a rubber cover made of rubber or an elastic material that forms a gap between adjacent separators and covers the outer edge of each separator. work equipment. 3. The rubber liner is integrally molded with rubber or an elastic material having a cylindrical outer shape, and includes an inner wall, a curved bottom surface that curves downward from the inner wall, and a castle wall that protrudes from the inner peripheral part of the bottom surface. A working machine according to claim 1, characterized in that it is equipped with: 4. The auxiliary centrifugal escaper is attached to the disk of the main centrifugal escaper, and is integrally molded from rubber or an elastic material with a substantially cylindrical outer wall having a concave and convex shape, and is attached to the outer wall of the rubber liner. 2. The working machine according to claim 1, wherein a gap is formed between the auxiliary centrifugal escaper and the rubber liner, located on the inside. 5. The tooth-shaped rice polisher has a cylindrical outer shape.
a connecting shaft, several stages of roller tooth groups and several stages of reverse roller tooth groups fixed to the connecting shaft, the roller tooth group having at least two roller teeth, each roller tooth having a curved end surface that is inclined in the direction of the connection axis; a fan-shaped flat surface that is perpendicular to the direction of the connection axis; an inclined wave surface that has a fan-shaped projected surface that waves while being inclined with respect to the direction of the connection axis; and a substantially triangular shape. an arcuate surface is formed, and the connecting shaft is attached with an arcuate member that adds thickness to a position other than the fixed position of the roller teeth, and the tooth-shaped rice polisher is configured such that when assembled with the rice polishing tank,
The roller tooth group is arranged in the opposite direction at the upper end, and the roller tooth group is sequentially arranged below the roller tooth group in the opposite direction, so that the roller teeth are aligned in the axial direction. Work equipment described in scope 1. 6. The working machine according to claim 1, wherein the partition plate is fixed to the inner wall of the rice polishing tank so as to be located between the roller tooth groups. 7. The inclined rice polishing machine is characterized in that it is equipped with one or a plurality of rice polishing tanks that are individually driven to rotate by a motor, and the same number of tooth-shaped rice polishers as these rice polishing tanks and corresponding partition plates. A working machine according to claim 1.