JP6238820B2 - Rice milling machine - Google Patents

Description

  The present invention relates to a rice mill, and more particularly, to a structure that prevents small rice and rice bran from being scattered outside the rice mill.

  Patent Documents 1 and 2 disclose a so-called vertical rice mill 51. This type of rice mill 51 is shown in FIGS. As shown in FIG. 9 to FIG. 12 and the like, the rice milling machine 51 has a hollow drive shaft 4 vertically moved by a drive motor 3 (not shown) through a drive pulley 3 in a main body casing 2 arranged in a vertical direction. It is arrange | positioned along the axial center extended in a direction. A feed roll 5 that feeds brown rice downward is attached to the upper portion of the drive shaft 4, and a rice mill roll 6 having ridges 6 a is attached to the lower portion of the drive shaft 4. Then, the feed roll 5 and the milled rice roll 6 are rotated together with the drive shaft 4.

  As shown in FIG. 12, FIG. 13 and the like, a metal polishing net having a large number of ventilation holes 8a is formed on the outer peripheral side of the feed roll 5 and the rice milling roll 6 as an outer shell portion of a rice milling chamber (milling section) 7. 8 is disposed. The rice bran generated in the rice mill 7 is sucked together with the air by the rice blower 11 connected to the rice bran suction passage 12 and discharged to the side of the rice bag (not shown). The whitening net 8 has a circumferentially divided holding frame 13 that is held from the outer peripheral side, and an upright portion 34b that extends in an annular shape from the upper and lower ends, and is erected vertically from two locations in the circumferential direction. It is supported by the support frame 34 which has.

  As shown in FIGS. 8, 11, and 12, on the outer peripheral side of the whitening net 8, a substantially cylindrical outer cylinder casing (fining part casing) 53 that forms an outer shell of the main body casing 2 has a space in the outer diameter direction. The outer casing 53 is formed with a plurality of round hole-like intake holes 53a and long hole-like intake holes 53b spaced apart in the vertical direction and the circumferential direction. The outer cylinder casing 53 is configured by combining two outer cylinder casings 53A and 53B that are semicircular in plan view so as to be openable and closable via the hinge portion 31 and the spring punch lock 32.

  Here, a large number of the round hole-like intake holes 53a of the outer cylinder casing 53 are formed on the opposite side of the outer cylinder casing 53 to the side to which the soot suction passage 2 is connected, and the smaller the holes are formed. As shown in FIGS. 8 and 11, the long hole-like intake hole 53 b is formed on the side opposite to the side where the soot suction passage 12 is connected in the vicinity of the lower end of the outer casing 53. The intake hole 53 b is formed at a position slightly above the bottom surface portion 34 a of the support frame 34 (that is, the bottom surface portion of the heel suction chamber 16, which is a space between the fine screen 8 and the outer cylinder casing 53). Further, since the rice milling chamber 7 is more likely to accumulate and accumulate at the lower side, the intake hole 53b is formed in a long hole shape so that the amount of air sucked is larger than other portions. Further, the outer cylinder casing 53 is disposed on the bottom surface 34 a of the support frame 34.

  As shown in FIGS. 8 to 10 and the like, a supply screw 9 and a supply casing 10 for feeding brown rice supplied from a brown rice tank 15 for temporarily storing brown rice into the milled rice chamber 7 are provided at the upper portion of the main body casing 2. It is arranged. The lower casing 2a disposed at the lower end of the main casing 2 adjusts the degree of opening so as to open and close the white rice outlet 14 at the lower end of the rice milling chamber 7 and lead the white rice discharged from the white rice outlet 14 downward. The member 21 is disposed so as to be movable up and down. The opening adjustment member 21 is biased in a direction to close the white rice outlet 14 by an opening adjustment biasing spring 23 through an opening adjustment drive arm 22 connected to the opening adjustment member 21. This urging force can be adjusted by an opening adjusting block 25 that is screwed up and down by a rotating shaft 24 a rotated by an opening adjusting motor 24.

  In such a configuration, while the feed roll 5 and the milled rice roll 6 are being rotated, the brown rice from the brown rice tank 15 is sequentially fed to the lower side of the milled rice chamber 7 by the feed roll 5, Are rubbed against each other or pressed against the milling net 8, and the rice bran on the surface of the brown rice is separated into white rice. Rice bran generated in the rice milling chamber 7 is sucked by a rice bran blower disposed at a predetermined location through the milling net 8 or a space between the milling net 8 and the outer casing 53 (also called the rice bran suction chamber 16). And discharged to the bag side. Further, the white rice from which the rice bran has been separated presses the opening adjustment member 21 downward and gradually moves, or the opening adjustment member 21 is lowered when the milling is finished. To be discharged.

JP 2007-160156 A Japanese Patent Laid-Open No. 2003-311162

  However, in the conventional rice milling machine 51, as shown in FIG. 11, the intake holes 53a and 53b of the outer casing 53 are sucked, that is, the space between the milling net 8 and the outer casing 53. Although the outside air is sucked into the suction chamber 16, the small rice X that is discharged into the soot suction chamber 16 along with the soot has a relatively large mass as compared with the soot, so that the intake air of the outer casing 53 is sucked. There was a problem of scattering to the outside through the holes 53a and 53b. In addition, there is a problem that part of the bag is scattered outside through the intake holes 53 a and 53 b of the outer casing 53. It should be noted that the long hole-shaped intake hole 53b is slightly above the bottom surface portion 34a of the support frame 34 that supports the outer cylinder casing 53 so that the small rice X and the soot collected in the soot suction chamber 16 do not easily come out. However, with this structure alone, it was not possible to satisfactorily prevent the small rice X and the straw from scattering to the outside.

  Note that the small rice X and rice cake scattered from the intake holes 53a and 53b of the outer cylinder casing 53 to the outside of the rice milling machine 51 are collected on the bottom plate 30 of the partition wall disposed below the rice milling machine 51, for example. The cage (see FIG. 11) was periodically cleaned to remove the small rice X and the wrinkles on the bottom plate 30.

  This invention solves the said subject, and it aims at providing the rice mill which can prevent well that a small rice and a rice cake are scattered outside.

In order to solve the above problems, the common configuration of the present invention is a milled rice roll that is rotated to mill brown rice, and is arranged so as to surround the milled rice roll from the outer peripheral side to form the outer shell of the milled rice chamber, and has a large number of ventilation holes. It is arranged to surround the whitening net provided and the whitening net in a state having a space from the outer peripheral side, and includes an outer cylinder casing having a plurality of intake holes, on one side in the circumferential direction of the outer cylinder casing, A rice mill that is connected with a rice cake suction passage for sucking air containing rice cake, and covers the outer casing in a state having a space from the outer peripheral side, and has a portion in which a portion thereof is opened to prevent rice cake scattering. A cover is provided, and suction holes of the outer cylinder casing are provided in a concentrated manner at locations where the outer cylinder casing is covered with the soot scattering prevention cover, so that the space in the soot scattering prevention cover can be sucked. And wherein the are.

  According to the above configuration, since the intake holes of the outer cylinder casing are concentrated on the outer cylinder casing where it is covered with the soot scattering prevention cover, small rice and rice cakes are drawn from the intake holes of the outer cylinder casing. Even if it is discharged to the outside, it will remain in the soot scattering prevention cover. Even if small rice or rice cake stays in the soot scattering prevention cover, the air in the soot scattering prevention cover passes through the intake hole of the outer cylinder casing through the opening on the upper surface of the soot scattering prevention cover, and the space in the outer cylinder casing Is sucked into the soot suction passage side. Thereby, it can prevent favorably that small rice and rice bran are scattered outside the rice mill. In addition, even if small rice or rice cake stays in the soot scattering prevention cover, it is sucked from the space inside the outer casing to the soot suction passage side, so the amount of small rice and soot remaining in the soot scattering prevention cover is minimized. Therefore, it is possible to reduce the number of times that cleaning is not required or the cleaning is not required.

  Further, the present invention is characterized in that the position of the lower end portion of the suction hole formed at the lowermost position is formed at the same height as the bottom surface in the soot scattering prevention cover. With this configuration, even when small rice or rice cake stays on the bottom surface of the mist scattering prevention cover, the small rice or rice cake is sucked well from the intake hole while moving along the bottom surface, and remains in the moth scattering prevention cover. Small rice and rice bran can be minimized.

  Further, according to the present invention, the suction hole formed in the lower end portion of the outer casing is formed into a long hole shape, and the lower side portion of the long hole shape suction hole is at the same height as the bottom surface in the soot scattering prevention cover. It is formed. According to this configuration, since the intake hole has a long hole shape, even when small rice or ridges remain on the bottom surface of the outer casing casing, the small holes and ridges are formed into long hole shape intake holes. Therefore, it is possible to minimize the small rice and rice cake that are sucked very well and stay in the rice cake scattering prevention cover.

  Further, according to the present invention, the bottom surface portion of the soot suction chamber, which is a space between the whitening net and the outer casing, is positioned lower than the bottom surface portion of the soot scattering prevention chamber, which is a space in the soot scattering prevention cover. It is characterized by being arranged. With this configuration, when small rice or rice cake collected on the bottom surface of the soot scattering prevention chamber flows into the soot suction chamber from the soot scattering prevention chamber through the long hole-shaped intake hole, it again flows back to the soot scattering prevention chamber side. This makes it possible to more reliably prevent small rice and rice bran from being scattered outside the rice mill.

  In addition, the present invention is characterized in that a rice cake scattering prevention cover is provided on the side opposite to the side where the rice cake suction passage is connected to the rice mill roll. With this configuration, the air intake holes are concentrated on the side opposite to the side where the rice bran suction passage is connected to the milled roll in the outer casing, so that air sucked from the air intake holes In the soot suction chamber, it flows well in the circumferential direction from the side opposite to the side to which the soot suction passage is connected toward the side to which the soot suction passage is connected, and as a result, occurs in the soot suction chamber. Soot and small rice are sucked well to the side of the straw suction passage.

  Further, the present invention is characterized in that the bottom portion of the heel suction chamber, which is a space in the outer cylinder casing, is covered from the outer peripheral side by the lower end portion of the outer cylinder casing. With this configuration, compared to the case where the lower end portion of the outer cylinder casing is simply placed on the bottom surface portion of the straw suction chamber, small rice and rice cake are removed from the gap between the outer casing and the bottom surface portion of the straw suction chamber. Can be minimized to the outside.

  According to the present invention, there is provided a kite scattering prevention cover that covers the outer cylinder casing in a state having a space from the outer peripheral side, and has a part of which is opened, and the kite scattering prevention cover in the outer cylinder casing is provided. By concentrating the air intake holes of the outer cylinder casing at the location covered with the above, it is possible to prevent small rice and rice bran from splashing outside the rice milling machine, and to clean the inside of the rice cake scattering prevention cover. This eliminates the need for cleaning, reduces the number of cleanings, and eliminates the need for cleaning.

  In addition, by forming the position of the lower end portion of the lowermost intake hole at the same height as the bottom surface in the soot scattering prevention cover, it is possible to minimize the small rice and soot remaining in the soot scattering prevention cover it can. Further, the intake hole formed in the lower end portion of the outer casing is formed into a long hole shape, and the lower side portion of the long hole-shaped intake hole is formed at the same height as the bottom surface in the cover for preventing flying dust, It is possible to further reduce the amount of small rice and wrinkles remaining in the prevention cover.

  In addition, the bottom surface portion of the soot suction chamber, which is the space between the whitening net and the outer casing, is disposed to be lower than the bottom surface portion of the soot scattering prevention chamber, which is the space in the soot scattering prevention cover. As a result, when small rice or rice cake collected on the bottom surface of the rice cake scattering prevention chamber flows into the rice cake suction chamber from the rice cake scattering prevention chamber, it becomes difficult to flow back to the rice cake scattering prevention chamber side again. It is possible to more reliably prevent scattering to the outside and improve reliability.

  In addition, by providing a soot scattering prevention cover on the side opposite to the side where the soot suction passage is connected to the rice milling roll, the air sucked from the air intake holes can be collected in the soot suction chamber. Good flow in the circumferential direction from the side opposite to the side to which the suction passage is connected toward the side to which the soot suction passage is connected. As a result, soot and small rice generated in the soot suction chamber are Good suction is achieved on the passage side, and good reliability can be maintained.

  Further, the outer cylinder casing is configured so as to cover the bottom surface portion of the soot suction chamber, which is a space in the outer cylinder casing, from the outer peripheral side, thereby eliminating the gap between the outer cylinder casing and the bottom surface portion of the soot suction chamber. It is possible to minimize the scattering of small rice and rice cakes to the outside.

1 is a side view of a rice mill and its vicinity according to an embodiment of the present invention. The state in which the white rice outlet is closed is shown in a front sectional view of the rice mill. The state where the white rice exit is opened is shown by the front sectional view of the rice mill. It is side surface sectional drawing of the rice mill equipment in which the same rice mill is provided. It is side sectional drawing of the same rice mill. It is a plane sectional view of the rice milling machine. (A) And (b) is the principal part side view and partially cutaway side view which show the modification of the rice mill, (a) shows the state before attaching an outer cylinder casing to a support frame, (b) Shows a state where the outer cylinder casing is assembled to the support frame. It is a side view of the conventional rice mill and its vicinity. The state where the white rice exit is closed is shown by the front sectional view of the conventional rice milling machine. The state where the white rice exit is opened is shown by the front sectional view of the conventional rice milling machine. It is side surface sectional drawing of the conventional rice mill. It is a plane sectional view of the conventional rice mill. It is a perspective view which shows the state which removed the outer cylinder casing etc. of the conventional rice milling machine.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the rice milling machine 1 which concerns on embodiment of this invention, the same code | symbol is attached | subjected to the component of the function similar to the conventional rice milling machine 51, and the description is partially abbreviate | omitted.

  As shown in FIGS. 1 to 4, etc., in this rice mill 1, the brown rice is milled (rice polished) in the rice milling chamber 7 by rotating the feed roll 5 and the rice milling roll 6 together with the drive shaft 4. White rice is discharged through the white rice outlet 14. The soot generated in the rice milling chamber 7 is sucked through a metal polishing net 8 provided with a large number of ventilation holes 8a, and the soot blower 11 connected to the soot suction passage 12 serves as a soot bag 41 (see FIG. 4). Discharged to the side. FIG. 4 shows an example in which the rice milling machine 1 of the present invention is provided in a rice milling facility 40 that is also called a so-called coin rice milling facility. When brown rice is introduced into the unillustrated brown rice inlet, this brown rice is conveyed to the brown rice tank 15 and sent to the rice mill 1. The polished rice polished by the rice mill 1 is discharged into a white rice tank 43 provided in the guest room 42 where the user can freely enter and exit. The rice milling machine 1 is disposed on the machine room 44 side where a user cannot enter and exit, and the guest room 42 and the machine room 44 are partitioned by a partition wall 45. The lower end portion of the rice milling machine 1 protrudes toward the passenger compartment 42 through a bottom surface portion 30 that is disposed so as to extend horizontally in the partition wall 45 at a part of the partition wall 45.

  The rice milling machine 1 of the present embodiment is different from the conventional rice milling machine 51 in the structure of the outer casing 33 and the like. That is, as shown in FIGS. 1, 5, and 6, the outer casing 33 according to the present embodiment is disposed so as to surround the fine mesh 8 from the outer peripheral side, and has a plurality of intake holes 33 a and 33 b. Although it is the same as that of the conventional rice milling machine 51, the position of the air intake hole 33a of the outer cylinder casing 33 is different, and the haze scattering prevention cover 36 that covers the area where the air intake holes 33a and 33b are provided is provided. Is different from the conventional rice milling machine 51. The soot scattering prevention cover 36 is disposed so as to cover from the outer peripheral side in a state having a space on the side opposite to the side to which the soot suction passage 12 is connected in the outer cylinder casing 33, and an opening having an upper surface opened. It is set as the structure which has 36a. The intake holes 33a and 33b of the outer cylinder casing 33 are concentrated on the portion of the outer cylinder casing 33 that is covered with the soot scattering prevention cover 36, and the space inside the soot scattering prevention cover 36 (the soot scattering prevention cover 36). Between the outer casing 33 and the outer casing 33, which is also referred to as a kite scattering prevention chamber 37). The outer cylinder casing 33 is configured by combining two outer cylinder casings 33A and 33B having a semicircular shape in plan view through a hinge portion 31 and a spring punch lock 32 so that they can be opened and closed.

  More specifically, the outer cylinder casing 33 (specifically, the outer cylinder casing 33A disposed on the side not connected to the soot suction passage 12) is covered with a soot scattering prevention cover 36. In the region, a plurality of round hole-like intake holes 33a and long hole-like intake holes 33b are formed at intervals in the vertical direction and the circumferential direction. The long hole-like intake hole 33b is formed on the opposite side of the lower end portion of the outer cylinder casing 33 (33A) to the side where the soot suction passage 12 is connected, and the lower side of the long hole-like intake hole 33b. Is formed at the same height as the bottom surface in the soot scattering prevention cover 36 (see FIG. 5). In addition, the long hole-like intake hole 33 b of the outer cylinder casing 33 (33 </ b> A) is formed at a position slightly above the bottom surface of the soot suction chamber 16, which is a space between the white screen 8 and the outer cylinder casing 53. ing. Accordingly, the bottom surface portion 16a of the soot suction chamber 16 which is a space between the whitening net 8 and the outer casing 33 is slightly more than the bottom surface portion 37a of the space in the soot scattering prevention cover (also referred to as the soot scattering prevention chamber 37). It is configured to be in a low position. In this embodiment, the outer cylinder casing 33 is disposed in a state of being placed on the bottom surface portion 34 a of the support frame 34 that supports the outer cylinder casing 33.

  According to the above configuration, since the intake holes 33a and 33b of the outer cylinder casing 33 are concentrated on the portion of the outer cylinder casing 33 covered with the soot scattering prevention cover 36, the intake holes 33a of the outer cylinder casing 33 are concentrated. , Even if small rice X and rice cake are discharged from the outer casing 33 to the outside, they remain in the rice cake scattering prevention cover 36. Even when the small rice X or the soot remains in the soot scattering prevention cover 36, the air in the soot scattering prevention cover 36 (that is, the soot scattering prevention chamber 37) from the opening 36a on the upper surface of the soot scattering prevention cover 36 Through the intake holes 33a and 33b of the outer cylinder casing 33, the air is sucked from the space in the outer cylinder casing 33 (the soot suction chamber 16) to the soot suction passage 12 side. As a result, it is possible to satisfactorily prevent the small rice X and rice bran from being scattered outside the rice milling machine 1, and it is difficult to increase the small rice X and rice bran in the rice cake scattering prevention cover 36 (that is, the rice cake scattering prevention chamber 37). It is not necessary to clean the inside of the haze scattering prevention cover 36, the number of times of cleaning can be reduced, and the labor of cleaning can be saved.

  In addition, the position of the long hole-shaped intake hole 33b formed at the lowermost position in the outer cylinder casing 33 (33A) is formed at the same height as the bottom surface of the soot scattering prevention cover 36 (soot scattering prevention chamber 37). Therefore, even if the small rice X and the cocoon remain on the bottom surface in the cocoon scattering prevention cover 36, the small rice X and the cocoon are well sucked from the long hole-like intake hole 33b while moving along the bottom surface. It is possible to minimize the small rice X and wrinkles remaining in the scattering prevention cover 36.

  Further, since the intake hole 33b has a long hole shape, even if the small rice X and the cocoon remain on the bottom surface in the mist scattering prevention cover 36, the small rice X and the ridge are very good from the long hole-shaped intake hole 33b. Thus, it is possible to minimize the small rice X and the soot that remain in the soot scattering prevention cover 36.

  Further, the bottom surface portion of the soot suction chamber 16 that is a space between the whitening net 8 and the outer casing 33 is lower than the bottom surface portion of the soot scattering prevention chamber 37 that is a space in the soot scattering prevention cover 36. Therefore, once the small rice X and rice cake collected on the bottom surface of the rice cake scattering prevention chamber 37 flows into the rice cake suction chamber 16 through the long hole-shaped intake holes 33b, the rice cake scattering prevention is again performed. Even if it tries to flow into the chamber 37 side, it becomes difficult to flow backward due to the step which becomes higher on the side of the rice bran scattering prevention chamber 37. As a result, it is more reliably prevented that the small rice X and rice bran are scattered outside the rice milling machine 1. And reliability is improved.

  Further, a scum splash prevention cover 36 is provided on the side opposite to the side where the slag suction passage 12 is connected to the milled rice roll 6, and the intake holes 33 a and 33 b are also provided on the milled rice roll 6 in the outer cylinder casing 33. On the other hand, since it is concentrated on the side opposite to the side to which the soot suction passage 12 is connected, the air sucked from the suction holes 33a and 33b through the soot scattering prevention chamber 37 is in the soot suction chamber 16. It flows favorably in the circumferential direction from the side opposite to the side to which the soot suction passage 12 is connected toward the side to which the soot suction passage 12 is connected. As a result, soot and small rice X generated in the soot suction chamber 16 are satisfactorily sucked into the soot suction passage 12 side, and good reliability can be maintained.

  In the above embodiment, the case where the outer casing 33 is disposed on the bottom surface portion 34a of the support frame 34 that supports the outer casing 33 has been described. However, the present invention is not limited to this. is not. For example, as simply shown in FIGS. 7A and 7B, a protrusion 34c that protrudes laterally from the bottom surface 34a of the support frame 34 is formed, and the outer cylinder casing 33 is formed on the protrusion 34c. You may comprise so that it may support in the mounted state, and you may comprise so that the lower end part of the outer cylinder casing 33 (33A, 33B) may cover the bottom face part 34a of the support frame 34 from an outer peripheral side. As a result, the bottom surface portion of the rice bran suction chamber 16 is covered without being directly exposed to the outside of the rice milling machine 1, so that the small rice X and rice bran are externally exposed from the gap between the outer cylinder casing 36 and the bottom surface portion of the rice straw suction chamber 16. Can be kept to a minimum, and reliability is further improved.

  In the above embodiment, the upper surface of the soot scattering prevention cover 36 is opened and the upper surface opening 36a is exposed to the outside. However, the present invention is not limited to this. That is, it is sufficient if it has a structure having an upper surface opening 36a and introducing air from the outside through this upper surface opening 36a. Finally, it is not always necessary that the upper surface of the soot scattering prevention cover 36 be opened (opened). Instead, air may be introduced from a location that is open (opened) downward or laterally through the upper surface opening.

DESCRIPTION OF SYMBOLS 1 Rice milling machine 4 Drive shaft 6 Rice mill roll 7 Rice milling room 8 Milling net 11 Kashiwa blower 12 Kashiwa suction passage 13 Holding frame 16 Kashiwa suction chamber 33, 33A, 33B Outer cylinder casing 33a, 33b Suction hole 34 Support frame 36 Koji prevention Cover 36a Opening 37 Dust scattering prevention room 40 Rice milling equipment

Claims (5)

A milled rice roll that rotates and mills brown rice, a milled rice net that is arranged so as to surround the milled rice roll from the outer peripheral side and forms the outer shell of the milled rice chamber, and a large number of vents are provided. And an outer cylinder casing having a plurality of air intake holes, and a soot suction passage for sucking air containing soot is connected on one side in the circumferential direction of the outer casing. A rice milling machine
While covering the outer cylinder casing in a state having a space from the outer peripheral side, a kite scattering prevention cover having a part of which is opened is provided,
In the outer cylinder casing, the portion covered with the soot scattering prevention cover is provided with the intake holes of the outer cylinder casing concentrated so that the space in the soot scattering prevention cover can be sucked .
A rice milling machine characterized in that the position of the lower end portion of the intake hole formed at the lowermost position is formed at the same height as the bottom surface in the soot scattering prevention cover . The intake hole formed in the lower end portion of the outer casing is formed into a long hole shape, and the lower side portion of the long hole shape intake hole is formed at the same height as the bottom surface in the soot scattering prevention cover. The rice mill according to claim 1 , wherein The bottom surface of the soot suction chamber, which is the space between the fine screen and the outer casing, should be positioned lower than the bottom surface of the soot scattering prevention chamber, which is the space in the soot scattering prevention cover. The rice mill according to claim 2 characterized by things. A milled rice roll that rotates and mills brown rice, a milled rice net that is arranged so as to surround the milled rice roll from the outer peripheral side and forms the outer shell of the milled rice chamber, and a large number of vents are provided. And an outer cylinder casing having a plurality of air intake holes, and a soot suction passage for sucking air containing soot is connected on one side in the circumferential direction of the outer casing. A rice milling machine
While covering the outer cylinder casing in a state having a space from the outer peripheral side, a kite scattering prevention cover having a part of which is opened is provided,
In the outer cylinder casing, the portion covered with the soot scattering prevention cover is provided with the intake holes of the outer cylinder casing concentrated so that the space in the soot scattering prevention cover can be sucked.
Precision US machine you wherein bran scattering prevention cover on the side opposite to the side where the bran suction passage is connected is provided to the rice rolls. A milled rice roll that rotates and mills brown rice, a milled rice net that is arranged so as to surround the milled rice roll from the outer peripheral side and forms the outer shell of the milled rice chamber, and a large number of vents are provided. And an outer cylinder casing having a plurality of air intake holes, and a soot suction passage for sucking air containing soot is connected on one side in the circumferential direction of the outer casing. A rice milling machine
While covering the outer cylinder casing in a state having a space from the outer peripheral side, a kite scattering prevention cover having a part of which is opened is provided,
In the outer cylinder casing, the portion covered with the soot scattering prevention cover is provided with the intake holes of the outer cylinder casing concentrated so that the space in the soot scattering prevention cover can be sucked.
A rice milling machine configured to cover, from the outer peripheral side, a bottom surface portion of a straw suction chamber, which is a space in the outer cylinder casing, by a lower end portion of the outer cylinder casing.

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