JP2000042430A - Unwashed rice dry cleaning in rice cleaning machine and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain unwashed rice reduced in aleurone by rubbing usual polished rice pushed toward the rotary direction of a rice polishing roll by a brush provided to the inner surface of a rice bran discharge cylinder in the center line direction thereof and removing the aleurone layer remaining in the back bed of the polished rice. SOLUTION: A rice-polishing roll 2 is supported in a rice bran discharge cylinder 1 so as to hold a center line (c) in common and the center line (c) of the rice-polishing roll 2 is the center line of the inner peripheral surface 2' of the roll 2, and a hollow rotary shaft 10 holding the center line (c) in common is arranged in the roll 2. The front and rear ends of the hollow rotary shaft 10 and the roll 2 are connected and the roll 2 is rotated in the direction shown by arrow (a) by the hollow rotary shaft 10 to fill a space (s) with usual already polished rice 4 and the already polished rice 4 is pushed by a rice pushing means 7 and rubbed by brushes 5 to peel and remove the aleurone layer 6 remaining in the back bed 4' of the already polished rice 4. By this constitution, unwashed rice reduced in aleurone can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for milling rice, which is usually milled without washing.

[0002]

2. Description of the Related Art Conventionally, there are two types of non-washed rice milling method or apparatus, a wet type and a dry type. The wet type requires a moisture and a refrigerator, so that the apparatus becomes complicated and the cost is increased. .

[0003] In the dry method, there is a problem that the rubbing of the polished rice is usually rough, so that it is difficult to separate only the residual paste layer in the back layer, and the crushed rice is easily generated.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a non-washed rice by sufficiently removing the aleurone layer (ariuron layer) usually remaining in the polished rice without generating broken rice.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a rice mill having a rice mill roll supported on a common center line inside a rice bran cylinder. A non-washing rice dry rice milling method in a rice milling machine, wherein the milled rice is rubbed on the inner surface of a rice bran cylinder with a brush provided in the direction of the center line to remove a paste layer remaining in a back layer of the milled rice. The rice-washing-free dry rice milling method according to the first aspect of the present invention, wherein the brush is slightly protruded from the inner surface of the rice bran cylinder. In the rice milling machine, the inner peripheral surface of the rice mill roll is supported on a common center line inside the rice bran cylinder. The rice-raising step is protruded from the outer peripheral surface of the milling roll at an equal opening angle at every equal opening angle to form an arc surface extending from the outer end of the step to the base of the next step, and a brush is formed on the inner surface of the rice bran cylinder. -Free rice dry milling in a rice mill with the The non-washing rice dry rice milling device according to the third aspect of the present invention, wherein the brush is slightly protruded from the inner surface of the rice bran cylinder. The rice washing rice dry type rice milling device according to the third or fourth aspect has an even opening angle of 120 degrees. It is a square tube and a brush is provided in the center of the opposing inner surface,
The non-washing rice dry milling apparatus according to the third aspect of the present invention, wherein the brush has a tip end surface substantially coinciding with the opposed inner surface.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A 6 or octagonal drainage burr 1 is provided inside a machine box 9 and a rice mill roll 2 sharing a center line c is supported inside the drainage burr 1. The milling roll 2 is hollow, and the center line c is the center line of the inner peripheral surface 2 ′, and a hollow rotary shaft 10 sharing the center line c is disposed therein.
0 is connected to the front and rear ends 2a, 2b of the rice mill roll 2, and the roll 2 is rotated by the rotary shaft 10 in the direction of arrow a.

The rotary shaft 10 is extended behind the milling roll 2, provided with a deceleration gear 11 at an extended end or in the middle of extension, and a drive provided on an output shaft 12 ′ of a motor 12 provided at a lower portion of the machine box 9. A tuning band 14 is wound between the wheel 13 and the rotating shaft 1.
Rotate 0 at about 850 rpm. As shown in FIGS. 6 and 7, a part of the rotary shaft 10 penetrates through the inside of the air chamber 15, and the air chamber 15 is provided with a connection port 15 'for a compressed air tube. Air is pressed into the rotating shaft 10 from the inlet 10 ′, and the air is discharged into the milling roll 2 from countless exhaust ports 10 ″ formed in the rotating shaft 10 in the milling roll 2.

The discharged air passes through the milling roll 2 with the center line c.
Is discharged into a space s from a plurality of long holes 16 formed in parallel to the inner periphery of the rice bran cylinder 1, and the milled rice 4 filling the space s.
After passing through the space, the countless small holes 1 "formed in the drainage tube 1 are discharged into the hood 17 together with the separated starch (ariuron), and are passed through the hopper 17 'at the lower portion of the hood 17. It is stored in a glue box (not shown) in 9. A pneumatic tube can be connected to an extended end 10a of the rotating shaft 10 via a joint as shown in FIG. .

A rice feed spiral 18 is provided in the middle outer periphery of the rotary shaft 10 in contact with the rice mill roll 2, and normal rice 4 is supplied from a rice mill supply cylinder 19 provided immediately above the rice feed spiral 18, and the spiral 18 rotates. Thus, the milled rice 4 can be sent into the space s between the milled rice roll 2 and the rice bran cylinder 1 to fill the space s, and a discharge port 20 is provided at the tip of the rice bran cylinder 1. 20
In the front of the rice mill 3
Is formed.

The outer peripheral surface of the milling roll 2 has an opening angle θ (12
0 °), a radially pushing rice step 7 is protruded at an equal height, and an arc surface 8 extending from an outer end 7 ′ of the step 7 to a base 7 ″ of the next step 7 is parallel to the center line c. And brushes 5 at the center of the opposing inner surface of the hexagonal or octagonal bran discharging cylinder 1 in three rows in the direction of the center line c as shown in FIG. 1 or FIG. The brush 5 is slightly (approximately 2 mm) protruding from the inner surface 1 'of the bran tube 1 (FIG. 1) or the leading end surface of the brush 5 is positioned at the center of the opposing inner surface. The front end face and the opposing inner face are made substantially coincident (including perfect coincidence) (FIG. 8), and the plurality of long holes 16 are respectively formed by the arcs contacting the base 7 ″ of the rice pressing step 7. Drill on surface 8.

As shown in FIG. 4, a flat surface 8 'orthogonal to the step 7 is formed at the outer end 7' of the step 7, and the base 8 of the next rice pressing step 7 is formed from one end 8 "of the flat surface 8 '. The arc surface 8 leading to 7 "may be formed.

When the milled rice roll 2 is rotated in the direction of arrow a to fill the space s with the ordinary milled rice 4, the milled rice 4 is pushed by the milling step 7 and rubbed by the brush 5.
The aleurone layer 6 (the ariuron layer) remaining in the back layer 4 ″ (the groove shown in FIG. 5B) of the milled rice 4 is peeled off and removed.

The milled rice 4 outside the outer end 7 ′ of the rice pressing step 7
Indicates that the space s gradually expands along the arcuate surface 8 rotating in the direction of the arrow a, and the impact and pressure contact between the polished rice 4 are alleviated, and the polished rice 4
It is rubbed carefully with little damage.

In FIG. 1, reference numeral 23 denotes a planting material for the brush 5;
Is a supporting groove of the planting material 23, 25 is a two-part abutment rib of the hexagonal rice bran cylinder 1, 26 is an outer peripheral holder of the rice bran cylinder 1, FIG.
In FIG. 7, reference numeral 27 denotes a support arm of the discharge suppressing plate 21;
7 is a universal joint of the restraining plate 21, 30 is a device for adjusting the strength of the ridge 22, and 3 'in FIG.
Reference numeral 3 "denotes a lower-stage rice mill, which is a two-stage rice mill.
The inside 24 'is an engagement protrusion with the support groove 24, 26' is a fitting hole of the above-mentioned bran drainage cylinder 1, and w is one side of the octagonal bran drainage cylinder 1.

[0015]

As described above, according to the present invention, the method and the apparatus described above can not only carefully separate the aleurone layer remaining in the back layer of the ordinary polished rice, but also make the space along the arc surface. Since the rice is gradually expanded, there is little impact between pressed and polished rice, and there is an effect that it is possible to obtain unwashed rice which is hard to generate broken rice by being carefully rubbed and has a small amount of paste powder.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a rice bran cylinder and a rice mill roll of the present invention.

FIG. 2 is a view showing a part of the inner surface of a rice bran cylinder.

FIG. 3 (a) is a perspective view of a rice mill roll. (B) The figure is a perspective view of the rice bran cylinder.

FIG. 4 is a partially enlarged longitudinal sectional view of a rice mill roll.

FIG. 5 (a) is a front view of milled rice grains. (B) Figure 5
(A) It is a cross-sectional view by the AA line of a figure.

FIG. 6 is an overall vertical sectional view of the rice mill according to the present invention.

FIG. 7 is a longitudinal sectional view showing a state where the rice mill is provided in two stages.

FIG. 8 is a vertical sectional view of an octagonal grain mill.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain burr 1 'Inner surface 2 Milling roll 2' Inner circumferential surface c Common center line 3 Milling machine a Rotation direction 4 Normal milling 4 'Back layer 5 Brush 6 Paste layer 7 Rice pressing step 7' Outer end 7 "Base θ Equal opening angle 8 Arc surface

Claims (6)

[Claims] 1. A rice mill having a rice mill roll supported on a common center line inside a rice bran cylinder, wherein the normal rice pressed in the rotation direction by the rice mill roll is placed on the inner surface of the rice bran cylinder in the direction of the center line. A non-washing and dry rice milling method in a rice milling machine, which comprises rubbing with a provided brush to remove an aleurone layer remaining in the back layer of the milled rice. 2. The dry rice milling method according to claim 1, wherein the brush is slightly protruded from the inner surface of the bran cylinder. 3. A rice mill having an inner peripheral surface of a rice mill roll supported on a common center line inside a rice bran cylinder. A non-washing rice dry rice milling machine in a rice mill having a circular arc surface extending from the outer end of the step to the base of the next step, and a brush provided on the inner surface of the drainage cylinder in the direction of the center line. . 4. The dry rice milling apparatus according to claim 3, wherein the brush is slightly protruded from the inner surface of the bran cylinder. 5. The dry rice milling apparatus according to claim 3, wherein the uniform opening angle is 120 degrees. 6. The dry rice milling machine according to claim 3, wherein the bran drainage cylinder is a square cylinder, a brush is provided at the center of the opposed inner surface, and a tip end surface of the brush substantially coincides with the opposed inner surface.