JPH09954A - Rice polishing machine - Google Patents

Abstract

PURPOSE: To inexpensively produce non-washed rice by rapidly removing fine rice bran sticking to the surfaces of milled rice without using water by a simple device. CONSTITUTION: A charging section is formed in the upper part of an outside cylinder 1 and a rotor 3 which is formed to a hollow shape is erected on the inner side of an outside cylinder 1. A fan is connected to the inner hollow part 8 of this rotor 3 and the outer peripheral surface of the rotor 3 is bored with plural ejection ports 12 in communication with this inner hollow part 8. The outer peripheral surface of the rotor 3 is projectingly provided with vane parts 13. A screw 14 formed in the upper part of the vane parts 13 to remove the rice bran 19. A polishing cylinder 16 formed with may polished penetration parts 18 which remove the rice bran 18 and in which the rice bran passes along the rotating direction of the rotor 1 is installed between the rotor 3 and the outside cylinder 1 so as to enclose the outer periphery of this rotor. A suction section 21 is mounted at this outside cylinder 1 and the lower part of the outside cylinder 1 is provided with a regulating valve 23 enclosing the collar part 5 of the rotor 1, where a discharge section 28 is formed.

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 for producing non-washed rice by removing rice bran adhering to the surface of polished rice.

[0002]

2. Description of the Related Art Generally, when cooking rice, the rice that has been polished is washed with water in advance to remove fine rice bran adhering to the surface before cooking. At this time, the rice polishing juice is poured as it is, but at restaurants, lunch centers, lunch shops, etc. where large amounts of rice are cooked, there is a problem of water pollution if this polishing juice is poured as it is. For this reason, a business facility that discharges a large amount of sharpening juice must provide a wastewater treatment facility, which poses a problem of its installation location and facility cost. There was also a problem that nutrients such as germs would be peeled off and washed off with polishing liquid if the rice was washed many times.

For these reasons, in recent years, non-washed rice has come to be used, which can cook rice as it is by adding water without washing it. In the conventional method of producing non-washed rice, the rice that has been polished is washed with about 3 times the amount of water and then dried, but with this method, once the rice is washed with water, it loses its taste and loses its luster. There is a problem that ends up. Further, there is also a problem that the selling price becomes high because a wastewater treatment facility for treating the sharpening juice discharged when washing rice is required.

[0004]

DISCLOSURE OF THE INVENTION The present invention eliminates the above-mentioned drawbacks and removes fine rice bran adhering to the surface of milled rice in a short time without using water with an extremely simple device to obtain luster. It is intended to provide a rice polishing machine capable of inexpensively producing non-washed rice with high nutritional value.

[0005]

The rice polishing machine according to claim 1 of the present invention has a feeding portion formed in the upper portion of the outer cylinder, and a hollow rotor standing upright inside the outer cylinder. A blower is connected to the inner hollow part of the rotor, and a plurality of jet ports are opened in the outer peripheral surface of the rotor so as to communicate with the inner hollow part, and at the same time, the outer peripheral surface of the rotor is provided with a blade portion, A screw cylinder is formed on the top to remove rice bran and a number of polishing penetrations through which it passes are provided between the outer cylinder and the outer cylinder so as to surround the outer circumference of the rotor, and the suction part is attached to this outer cylinder. At the same time, a regulating valve that surrounds the outer circumference of the rotor is provided in the lower portion of the outer cylinder, and the discharge portion is formed here.

The invention according to claim 2 is characterized in that the polishing cylinder is rotatably supported in a direction opposite to the rotational direction of the rotor. The invention according to claim 3 is
It is characterized in that a fan blade for sending air downward is attached to an outer periphery of a polishing cylinder rotatably supported, and a suction portion is provided on a lower side of an outer cylinder.

Further, in the invention according to claim 4, the polishing cylinder is formed by arranging a plurality of rotary shafts in a circular shape, and a plurality of ring-shaped projections are provided at predetermined intervals along the axial direction on the outer circumference of the rotary shaft. It is characterized in that the ring-shaped projection is inserted into the annular groove formed between the ring-shaped projections of the adjacent rotary shafts with a gap, and the gap is used as a polishing penetration portion. .

[0008]

The function of producing non-washed rice by the rice polishing machine according to the first aspect of the present invention is to rotate the rotor by the motor and operate the blower to supply the high pressure air to the hollow portion of the rotor. In this state, when milled rice is fed from the feeding part, the screw attached to the upper part of the rotor is rotated and the rice is conveyed downward and pushed into the polishing cylinder. The rice pushed into the polishing cylinder is agitated by the blades of the rotor and pressed against the polishing cylinder.

Since the polishing cylinder has a large number of polishing penetrations, fine rice bran adhering to the rice is removed at these edges. Further, since the high pressure air is ejected from the ejection port opened on the surface of the rotor, the rice bran separated from the rice is scattered like dust and is discharged to the outside from the polishing penetration portion together with the high pressure air. The rice bran ejected from the polishing penetration portion to the outside together with the high-pressure air is sucked by a vacuum from the suction portion attached to the outer cylinder. Also, the rice that has reached the lower side of the polishing cylinder pushes down the regulating valve by the pressure from above,
During this time, a discharge part is formed so that the unwashed rice from which the rice bran has been removed is discharged downward.

In the rice polishing machine according to the second aspect of the present invention, since the polishing cylinder disposed so as to surround the rotor is rotatably supported and is rotated by the motor, the introduced rice is of a rotating rotor. While being stirred by the blades,
It is pressed against the polishing cylinder rotating in the opposite direction. Therefore, fine rice bran adhering to the rice is efficiently removed at the edge of the polishing penetration portion, and is scattered into a dust shape by the high pressure air, and is discharged from the polishing penetration portion to the outside together with the high pressure air. .

According to the third aspect of the present invention, since the fan blades for sending air downward are attached to the outer periphery of the polishing cylinder, the high pressure discharged through the polishing penetration portion to the outside of the polishing cylinder. The air and rice bran send air downward by the rotation of the fan blades, and are quickly discharged to the outside from the suction unit provided on the lower side.

Further, in the rice polishing machine according to a fourth aspect of the present invention, a plurality of rotary shafts are arranged in a circular shape, and a plurality of ring-shaped projections are provided at predetermined intervals on the outer circumference of the rotary shafts along the axial direction. , The gap is inserted in the annular groove formed between the ring-shaped protrusions of the rotary shaft adjacent to this, and this is used as the polishing penetration part, and the rice thrown into the polishing cylinder is While being stirred, it is pressed against the polishing cylinder composed of the rotating shaft. The rice pressed against the rotating shaft is a polishing penetration part formed between the ring-shaped projections of the adjacent rotors, and the fine rice bran adhering to the rice is removed, and this rice bran goes outside from the polishing penetration part with high pressure air. It is about to be discharged.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. In the figure, reference numeral 1 is an outer cylinder formed of a metal cylinder, and a hopper is attached to the upper part of the outer cylinder, and a charging section 2 is provided.
Are formed. A hollow rotor 3 is erected at the center of the shaft of the outer cylinder 1, and the upper and lower portions of the rotor 3 are rotatably supported by bearings 4 and 4. A collar portion 5 and a pulley 6 are attached to the lower side of the rotor 3, and the pulley 6 is connected to a motor (not shown) via a belt 7 so as to rotate.

The hollow portion 8 of the hollow rotor 3 is connected at its lower end to a hose 10 via a rotary joint 9, and the hose 10 is connected to a blower (not shown). The diameter of the side surface of the rotor 3 is 1.5-2.
A large number of 0 mm jet outlets 12 ... Are opened at intervals and communicate with the inner hollow portion 8 as shown in FIG. 2, and high-pressure air from the blower passes through the hollow portion 8 of the rotor 3. Spout
It is supposed to squirt from 12. A plurality of blade portions 13 are provided on the outer periphery of the rotor 3 at intervals in the circumferential direction so as to project slightly in the vertical direction. Further, a screw 14 is formed on the upper side of the rotor 3 as shown in FIG. 1, and has a function of pushing down the rice 15 fed from the feeding portion 2.

Reference numeral 16 denotes an outer cylinder 1 so as to surround the outer circumference of the rotor 3.
This is a polishing cylinder provided between and, and as shown in FIG. 3, a metal cylindrical body 17 is provided with a large number of long-hole-shaped polishing penetration portions 18 ... The polishing penetration portion 18 is formed in a long hole shape having an inner width of about 1 mm and a length of about 20 to 30 mm.
As shown in Fig. 2, the rice bran 19 adhered to the rice 15 at the edge of
Is removed, and this is passed and discharged to the outer peripheral side of the polishing cylinder 16.

Further, as shown in FIG. 1, a ring-shaped suction portion 21 connected to a vacuum chamber (not shown) is attached to the lower side of the outer cylinder 1. Further, a ring-shaped adjusting valve 23 is attached to the lower side of the outer cylinder 1, and the adjusting valve 23 is provided so as to surround the collar portion 5 provided on the lower side of the rotor 3. Further, support rods 24 are provided at three locations below the adjusting valve 23, and a bolt 25 is projectingly provided on a base 22 below the adjusting rod 23, and a spring receiver 26 is attached to the base so as to be vertically movable. The spring receiver 26 and the lower end of the support rod 24 are connected by a coil spring 27 so that the adjusting valve 23 is elastically supported, and a discharge portion 28 that can adjust the distance between the spring portion 26 and the collar portion 5 is formed.

A rice receiving portion 29 is formed below the discharging portion 28 formed by the collar portion 5 and the adjusting valve 23 so as to surround the rotor 3, and a discharging shooter 30 is provided next to the rice receiving portion 29. Installed.

In the case of producing non-washed rice with the above-described rice grinder, the motor (not shown) is rotated to rotate the rotor 3 having the pulley 6 attached by the belt 7, and the blower (not shown) is operated to rotate from the hose 10 to the rotary. High-pressure air is supplied to the hollow portion 8 of the rotor 3 via the joint 9. In this state, when the milled rice 15 is fed from the hopper of the feeding section 2, the screw 14 attached to the upper part of the rotor 3 is rotating in the direction of the arrow.
15 is conveyed downward and is pushed into the polishing cylinder 16. Polishing cylinder
The rice 15 pushed into the inside 16 is agitated by the blades 13 of the rotor 3 rotating as shown in FIG. 2, and pressed against the inner wall of the polishing cylinder 16.

As shown in FIG. 3, the polishing cylinder 16 has a large number of long hole-shaped polishing penetration portions 18 formed along the rotating direction of the rotor 3, so that fine rice bran adhered to the rice 15 at this edge is formed. 19 are removed. On the other hand, as shown in FIG. 2, since the high pressure air is ejected from the ejection port 12 opened on the surface of the rotor 3, the rice bran 19 separated from the rice 15 scatters like dust, and together with the high pressure air, the polishing penetration portion 18 is formed. To the outside. For this reason, fine rice bran once peeled off like a rice mill
It can prevent the 19 from reattaching. The rice bran 19 ejected from the polishing penetrating portion 18 to the outside together with the high-pressure air descends between the outer cylinder 1 and the suction portion arranged in a ring shape on the lower side of the outer cylinder 1.
It is sucked from 21 by a vacuum (not shown) and stored in a rice bran collection box. In this case, the high-pressure air always passes and is sucked by the vacuum from the outside of the polishing cylinder 16, so that the polishing penetrating portion 18 can be prevented from being clogged.

The rice 15 reaching the lower side of the polishing cylinder 16 by the rotation of the screw 14 contracts the coil spring 27 by the pressure from above and pushes down the adjusting valve 23, and the discharge part 28 is formed between them. The non-washed rice 15 from which the rice bran 19 has been removed falls on the rice receiver 29. The non-washed rice 15 dropped on the rice receiving portion 29 is splashed by the rotation of the rotor 3, discharged from the discharge shooter 30, and stored in a receiving box (not shown). The discharge part 28 is adjusted by rotating the bolt 25 and moving the height of the spring receiver 26 as shown in FIG. 1 while observing the removal state of the rice bran 19.
The elasticity of can be adjusted.

The non-washed rice produced in this way has a glossy surface and does not have crushed rice. It suffices to add water when cooking rice, and it is possible to cook delicious rice that does not impair the nutritional value. Since the polishing penetrating portion 18 formed on the polishing cylinder 16 is formed along the rotation direction of the rotor 3, the rice 15
It is possible to peel off only the rice bran 19 adhering to the surface without polishing too much, but it is also possible to open the polishing penetration part 18 with a slight inclination.

FIG. 4 shows another embodiment of the present invention.
The lower part of the polishing cylinder 16 arranged so as to surround the rotor 3 is supported by a thrust bearing 31 and the upper part is supported by a bearing 4, and is rotatably attached to the outer cylinder 1. Further, a pulley 6 is formed on the upper end of the polishing cylinder 16 protruding from the outer cylinder 1,
It is connected to a motor (not shown) via a belt 7 here, and is adapted to rotate in the opposite direction to the rotor 3.
Further, fan blades 32 are attached to the outer periphery of the polishing cylinder 16 so as to send air downward. The other structure is the same as that of FIG.

This rice polishing machine rotates the rotor 3 while supplying high-pressure air to the hollow portion 8 of the rotor 3, and at the same time, rotates the polishing cylinder 16 in the opposite direction, and throws in the rice 15 which has been milled. Put in from 2. The fed rice 15 is pushed into the polishing cylinder 16 by the rotating screw 14, stirred by the blades 13 of the rotor 3, and pressed against the inner wall of the polishing cylinder 16. The polishing cylinder 16 rotates in the opposite direction to the rotor 3, and the fine rice bran adhered to the rice 15 at the edge of the polishing penetration 18
The rice bran 19 is efficiently removed, and the rice bran 19 is scattered like dust by the high-pressure air ejected from the ejection port 12 and is discharged to the outside from the polishing penetration portion 18 together with the high-pressure air.

The high-pressure air and rice bran 19 discharged to the outside of the polishing cylinder 16 are further sent downward by the rotation of fan blades 32 attached to the outer periphery of the polishing cylinder 16, and a ring-shaped suction portion provided on the lower side. It will be discharged promptly by 21. Therefore, since the stirring direction by the blade portion 13 and the rotation direction of the polishing cylinder 16 are opposite to each other, the polishing efficiency is improved, a large amount of unwashed rice 15 can be produced in a short time, and the fan blades 32
The rice bran 19 scattered between the outer cylinder 1 and the polishing cylinder 16 can be efficiently discharged to the outside by the rotation of the.

FIGS. 5 to 7 show another embodiment of the present invention, in which the polishing cylinder 16 is provided with a plurality of rotary shafts 34 ... Surrounding the rotor 3 in a circular shape as shown in FIG. Each of the rotating shafts 34 ... Is connected to a motor via a gear (not shown) so as to rotate in the same direction.

The rotating shaft 34, as shown in FIG.
A plurality of ring-shaped projections 35 ... Are projected on the outer periphery along the axial direction at predetermined intervals, and the protruding positions are attached so as to be offset from the ring-shaped projections 35 of the adjacent rotary shaft 34. In this combined structure, as shown in FIG. 7, the ring-shaped protrusion 35 of the rotary shaft 34 is inserted into the annular groove 36 formed between the ring-shaped protrusions 35, 35 of the adjacent rotary shaft 34 with a gap, It is configured such that the gap is the polishing penetration portion 18.

In the rice polishing machine having this structure, the rice 15 introduced into the polishing cylinder 16 is pressed against the polishing cylinder 16 constituted by the rotating shafts 34 while being stirred by the blade portions 13 of the rotor 3. The rice 15 pressed against the rotating shaft 34 is shown in FIG.
The fine rice bran 19 adhering to the surface is removed at the polishing penetrating portion 18 between the ring-shaped projection 35 of the adjacent rotor 3 inserted in the annular groove 36 as shown in FIG.
The high-pressure air jetted from the air scatters into dust and is discharged to the outside from the polishing penetrating portion 18 together with the high-pressure air.

At this time, since the adjacent rotary shafts 34, 34 are rotating in the same direction as shown in FIG. 6, the rice 15 is not bitten by the polishing penetrating portion 18 and is not broken, and only the rice bran 19 is aired. It is designed to be discharged together with it. In this case, the rotor 3 and the rotating shaft 34 may be rotated in opposite directions. Further, a plurality of the rice polishing machines of the present invention may be continuously mounted, or may be connected to a rice polishing machine for continuous processing.

[0029]

As described above, according to the rice polishing machine of the present invention, the fine rice bran adhering to the surface of the milled rice can be removed in a short time without using water with an extremely simple device. Thus, it is possible to inexpensively produce unwashed rice with delicious luster without impairing the nutritional value.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a rice polishing machine according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of an essential part showing a state in which unwashed rice is produced by the rice polishing machine shown in FIG.

3 is a front view showing a polishing cylinder of the rice polishing machine shown in FIG. 1. FIG.

FIG. 4 is an enlarged cross-sectional view of an essential part of a rice polishing machine in which a polishing cylinder according to another embodiment of the present invention is rotatably supported.

FIG. 5 is an enlarged cross-sectional view of a main part of a polishing machine in which a polishing cylinder is composed of a plurality of rotating shafts according to another embodiment of the present invention.

FIG. 6 is a horizontal sectional view of the rice polishing machine shown in FIG.

FIG. 7 is an enlarged front view of essential parts showing a combined state of adjacent rotary shafts shown in FIG.

[Description of sign]

 1 Outer cylinder 2 Input part 3 Rotor 4 Bearing 5 Collar part 6 Pulley 7 Belt 8 Hollow part 10 Hose 12 Jet outlet 13 Blade part 14 Screw 15 Rice 16 Polishing cylinder 17 Metal cylinder 18 Polishing penetration part 19 Rice bran 21 Suction part 23 Adjustment Valve 27 Coil spring 28 Discharge part 29 Rice receiving part 30 Discharge shooter 32 Fan blade 34 Rotating shaft 35 Ring protrusion 36 Annular groove

Claims (4)

[Claims] 1. A charging part is formed on the upper part of the outer cylinder, and
A rotor having a hollow shape is erected inside the outer cylinder, a blower is connected to the inner hollow portion of the rotor, and a plurality of jet ports are opened on the outer peripheral surface of the rotor in communication with the inner hollow portion, A blade portion is provided on the outer peripheral surface of the rotor, and a screw is formed on the upper portion of the blade portion to remove the rice bran and to surround the outer periphery of the rotor with a polishing cylinder formed with a number of polishing penetrations through which the rice bran passes. A rice polishing machine, characterized in that it is provided between the outer cylinder and a suction portion is attached to the outer cylinder, and a discharge valve is formed at the lower portion of the outer cylinder by providing a regulating valve surrounding the outer circumference of the rotor. 2. The rice polishing machine according to claim 1, wherein the polishing cylinder is rotatably supported in a direction opposite to the rotation direction of the rotor. 3. A rice polishing machine according to claim 2, wherein fan blades for sending air downward are attached to the outer periphery of the rotatably supported polishing cylinder, and the suction portion is provided on the lower side of the outer cylinder. . 4. A polishing cylinder is formed by arranging a plurality of rotary shafts in a circular shape, and a plurality of ring-shaped projections are provided on the outer circumference of the rotary shaft at predetermined intervals along the axial direction. 2. The rice polishing machine according to claim 1, wherein the protrusions are inserted into an annular groove formed between the ring-shaped protrusions of the adjacent rotary shafts with a gap, and the gap serves as a polishing penetrating portion.