JPH05249A - Rice polishing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a rice polishing machine, the bran effectively scraped off from the surface of rice grains by a brush is blown off and removed. [Structure] The bran remaining on the surface of the rice grains transported in the bran removal cylinder A is scraped off by the brushing action of the brush 12 having the bristles planted on the outer periphery of the rotor 11, and the bran adhered to the brush 12 after being scraped off It is configured to be blown off and removed by the blowing means C. The air blower means C is formed by opening an air blower outlet 11a in the outer peripheral portion of the rotor 11 in the brush-implanting direction of the brush 12, which blows out the wind that blows off the bran.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice polishing machine, and more specifically, to a rotor disposed in a bran removal cylinder so as to be rotatable and driven.
Provided is brush means including a brush planted on the outer peripheral portion of the rotor so as to come into contact with the surface of the rice grains transferred in the bran removal cylinder, and also provided with a blower means for blowing wind to the brush. , Polished rice configured to scrape off the bran remaining on the surface of the rice grains transferred in the bran removal cylinder by the brush means, and blow off the bran adhered to the brush after being scraped off by the blowing means Regarding the machine.

[0002]

2. Description of the Related Art Such a rice polishing machine, that is, a rice polishing machine having a brush means formed by bristling the brush on the outer peripheral portion of the rotor and the air blow means has already been developed. In the machine, the blowing means blows a wind for removing the bran adhering to the brush from the outside of the rotor onto the brush, and the wind crosses or crosses the bristling direction with respect to the brush. It was sprayed in the direction (hereinafter, simply referred to as the orthogonal direction).

[0003]

Even if the wind is blown to the brush in such a rice polishing machine, since the wind is blown in the orthogonal direction, the influence of the wind is deep in the gap between the brushes. Is difficult to reach,
There was a problem that the bran that entered the part was difficult to remove.

The present invention has been made in view of such circumstances, and an object thereof is to provide means for enhancing the effect of removing the bran. Another object of the present invention is to provide a means capable of improving the quality of the polished rice after polishing and promoting the polishing work while enhancing the bran removal effect.

[0005]

The rice polishing machine according to the present invention is
A first characteristic configuration is that the blower unit is configured by opening a blowout port, which blows out the wind, in the outer peripheral portion of the rotor in the brush-implanting direction of the brush.

Further, a second characteristic is that an inner peripheral portion of the bran removal cylinder is provided with a glazing member that comes into contact with the surface of the rice grains transported in the bran removal cylinder to polish the surface. It is configured.

Furthermore, a third characteristic configuration is that the tip length of the brush that is planted on the outer peripheral portion of the rotor is set so that the lower side in the rotation direction of the rotor becomes shorter.

[0008]

According to the first characteristic configuration, since the air outlet for ejecting the air for removing the bran is formed in the bristling direction of the brush, the air ejected from the air outlet is deep inside the brush gap. Will be hit well.

According to the second characteristic configuration, the surface of the rice grain is polished by the polishing member.

According to the third characteristic configuration, it becomes easy for rice grains to enter between the bran removal tube and the brush based on the tip shape of the brush.

[0011]

According to the first characteristic configuration, the wind, which often hits the deep portion of the brush gap, also blows away the bran that has been difficult to remove by entering the deep portion, Therefore, there is an effect that the bran removing effect is improved as compared with the conventional case.

According to the second characteristic constitution, in addition to the above-mentioned effects, the appearance of the white rice obtained by polishing the surface of the rice grains during the polishing process is improved and the quality thereof is improved. Occurs.

According to the third characteristic structure, in addition to the above-mentioned effects, rice grains are more likely to enter between the bran removing cylinder and the brush during the rice polishing process, and the rice polishing operation is accelerated.

[0014]

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

FIG. 1 and FIG. 2 show an embodiment of a rice polishing machine according to the present invention, and 1 in FIG. 2 is a base of the rice polishing machine. On the base 1, a main body 3 for accommodating a main shaft 2 rotatably supported around a vertical axis and a motor 4 as a rotational drive source of the main shaft 2 are mounted in a mounted state. There is. The output shaft 4a of the motor 4 and the main shaft 2
A driving force is transmitted between the two parts by the belt transmission mechanism 5 housed inside the base 1.

A rice grain introducing port 3a is provided in the middle part of the main body 3, and the rice grain introducing port 3a laterally conveys the rice grains introduced from the rice grain introducing section 6 (the lateral conveying device 7). The device 7 is specifically provided with a horizontal screw 7b which is rotationally driven by a motor 7a), and the rice grain fed laterally by the horizontal conveying device 7 is the rice grain inlet 3a. Via the main body 3
It is designed to be guided inside.

A vertical screw 8 is externally mounted on the main shaft 2 in the main body 3 at a position extending from a portion where the rice grain introducing port 3a is formed to an upper portion thereof. The vertical screw 8 is
The rice grains are driven to rotate following the main shaft 2, and the rice grains introduced through the rice grain introducing port 3a based on the rotation are vertically fed upward. That is, the vertical screw 8 transfers the rice grains introduced into the main body 3 through the rice grain introducing port 3a from the bottom to the top in the main body 3 (more specifically, in the bran removing cylinder A described later). It functions as a vertical transport device.

An upper portion of the main body 3 just above the mounting position of the vertical screw 8 has a see-through case 3b through which the inside can be seen through.
It is composed of. The transparent case 3b constitutes the outer peripheral portion of the bran removing cylinder A in which the surface bran is removed in the cylinder for the rice grains transferred upward by the vertical screw 8 as described above. As shown in FIG. 1, the inner peripheral portion of the bran removing cylinder A has a plurality of polishing members 9 (eight in this embodiment) made of hard wood (for example, oak material) and a screen 10 having pores. And a plurality of sheets (8 sheets in this embodiment) are alternately arranged to form a circle. Thus, the reason why the polishing member 9 is provided on the inner peripheral portion of the bran removing cylinder A is that the surface of the rice grain is polished during polishing by the action of the polishing member 9.

The main shaft 2 corresponding to the inside of the bran removing cylinder A
The portion 11 is a rotor 11 which is rotatable around the axis of the vertical axis, and the rotor 11 rotates integrally with the main shaft 2. Then, the rotor 11 and the rotor 11 are brought into contact with the surface of the rice grain transferred in the bran removing cylinder A.
Brush 12 that is planted on the outer peripheral portion of the
In combination with the brush mounting portion 11A that is removable from the main body of the rotor 11), the inside of the bran removal tube A (more specifically, the inner peripheral portion of the bran removal tube A and the outer peripheral portion of the rotor 11) The brush means B is configured to scrape off and remove the bran remaining on the surface of the rice grains transferred from the bottom to the top (gap formed between). That is, when the rotor 11 is rotated as shown by the hollow arrow in FIG. 3, the tips of the brushes 12 that are planted on the outer periphery of the rotor 11 are pressed against the surface of the rice grains, and the brazing action scrapes off the bran. It has been removed and the rice is being polished.

A plurality of brushes 12 are planted on the outer peripheral portion of the rotor 11 in a plurality of groups (4 groups in this embodiment), and the tip length of each group is The lower side of the rotor 11 is set to be shorter in the rotating direction (the direction of the hollow arrow). The tip shape of the brush 12 is set as described above when the bran is scraped off by the brushing action,
This is to facilitate the rice polishing work by making it easier for rice grains to enter between the bran removal cylinder A and the brush 12 as shown in FIG. 3 (making the gap on the rice grain intrusion side easier to enter).

As a means for blowing off and removing the bran adhering to the brush 12 after being scraped off by the brush means B, a blowing means C for blowing air to the brush 12 is provided. Specifically, as shown in FIG. 1, the blowing means C has a hollow portion 11b inside the rotor 11, which communicates with a space where the blower fan 14 attached to the output shaft 4a of the motor 4 exists. A blowout port 1 that is formed and guides the air blown by the blower fan 14 to the outer peripheral portion of the rotor 11 via the hollow portion 11b and ejects the air to the outside
It is configured by opening 1a. And
The opening direction of the blowout port 11a is made to coincide with the bristling direction of the brush 12. When such a blower means C is provided, since the blowout port 11a that blows out the bran-removing wind is formed in the bristling direction of the brush 12,
The wind blown from the blowout port 11a is the brush 1
It will also hit deep inside the gap of 2. In the present embodiment, the part where the brush 12 is implanted and the part where the blowout port 11a is formed are packaged as an integrated part (that is, the brush attachment part 11A), and the integrated part is attached to the rotor 11. It is designed to be detachable. This is to facilitate replacement of parts when they are worn out.

The bran blown away by the wind of the blowing means C is guided through the hole of the screen 10 to a space outside thereof and inside the transparent case 3b, and passes through the space. It is designed to be discharged outside the aircraft. Further, the white rice obtained by grinding the supplied rice grains as described above is transferred to the upper part of the bran removing cylinder A and discharged to the outside of the machine through the discharge chute 13 provided at the uppermost part of the main body 3. It has become so. Reference numeral 15 in FIG. 4 is a suction fan, and the suction fan 15 has a function of sucking the air, which has flowed out through the pores of the screen 10 to the outside, into the space where the blower fan 14 exists.

Next, another embodiment will be described. An example is conceivable in which the air from the air outlet 11a is jetted unevenly. For example, the blower fan 14 is configured to be driven by a drive device different from the motor 4, and the rotational speed of the blower fan 14 is temporally changed by the drive device, or the blower fan is used. 14 drives
By repeating the stop, the blowout port 11
The jet conditions from a are set so that a strong jet is generated periodically. When a strong jet is generated periodically, the brush 1
The bran removal in the gap 2 becomes more reliable.

The tip shapes of the brushes 12 of each set do not necessarily have to be straight, and may have an arc shape, an angular shape, or an intermediate shape. In short, the shape should be optimal for the brushing action.

The brush mounting portion 11A is attached to the brush 1
You may make it protrude according to the consumption degree accompanying the use of 2.

It is also conceivable to form irregularities on the outer surface of the main body of the rotor 11 or to form irregularities on the inner surface of the bran removing cylinder A, that is, the polishing member 9 or the screen 10. A rice polishing action due to the unevenness is expected.

It is also conceivable to provide a vibrator on the base 1 or to provide a vibrator on the bran removing cylinder A or the rotor 11. Vibration of the base 1, the bran removing cylinder A, and the rotor 11 due to the vibrator can be expected to eliminate clogging of the bran and improve the action of polishing rice.

If a dust collecting device is provided on the discharge chute 13, dust generated by polishing can be effectively removed.

An abrasive such as shirasu (volcanic ash) is introduced together with the rice grains from the rice grain introducing section 6, and the abrasive is separated and collected in the discharge chute 13 from which the polished rice is discharged, and the rice grain introducing section 6 It is also possible to think of an embodiment in which the operation is returned to. When the abrasive is mixed in this way, improvement of the rice polishing action can be expected.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a main part of a rice polishing machine according to the present invention (cross-sectional view taken along the line EE in FIG. 2).

FIG. 2 is a vertical sectional view showing the overall structure of the rice polishing machine.

FIG. 3 is an explanatory view of the operation of the main part of the rice polishing machine.

[Explanation of symbols]

9 Glazing material 11 rotor 11a spout 12 brushes A bran removal pipe B brush means C blast means

Claims (3)

[Claims] 1. A rotor (11) rotatably and rotatably arranged in a bran removing cylinder (A) and the rotor (11) for contacting the surface of rice grains transported in the bran removing cylinder (A). The brush means (B) having a brush (12) with bristles is provided on the outer peripheral portion of the baffle, and a blowing means (C) for blowing a wind to the brush (12) is provided to remove the bran removal pipe ( The bran remaining on the surface of the rice grains transferred in A) is scraped off by the brush means (B), and the bran adhered to the brush (12) after being scraped off is blown off by the blowing means (C). A blast machine (C) configured as described above, wherein the blast means (C) is the rotor (1
A rice polishing machine constituted by opening a blowout port (11a) for ejecting the wind in the outer peripheral portion of 1) in the bristling direction of the brush (12). 2. A glazing member (9) is provided on the inner peripheral portion of the bran removal tube (A), which comes into contact with the surface of rice grains transferred in the bran removal tube (A) to polish the surface. The rice polishing machine according to claim 1, which is provided. 3. The tip length of the brush (12) implanted on the outer peripheral portion of the rotor (11) is set so that its lower side becomes shorter in the rotation direction of the rotor (11). The listed polishing machine.