JP2003340296A - Household rice milling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain unwashed rice simultaneously with the completion of rice milling in a household rice milling machine. <P>SOLUTION: In a circulating type rice milling machine constituted so as to allow suction force to act on the outer periphery of a rice milling screen 18 to suck and discharge rice bran generated by rice milling and a one passing type rice milling machine, suction holes 24 for outer air are provided in the vicinity of the outlet 23 of the rice milling screen 18 and outer air is sucked from the suction holes 24 by the suction force for sucking rice bran when milling rice and residual rice bran is sucked and removed to mill rice. Further, a brush part may be provided to a part of a return passage in place of the suction holes 24 in a freely detachable manner. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic rice mill, and more particularly to a non-washed rice mill.

[0002]

2. Description of the Related Art In a domestic rice milling machine, a rice milling roll is inserted into a rice milling chamber, and a rice milling mechanism for milling rice by friction of rice grains with rotation of the rice milling roll is provided in a hopper, a rice milling chamber, and a return passage. A circulation method of polishing rice while circulating rice grains in a circulation path consisting of
No. 19745), and a one-pass system in which rice grains from the hopper are passed through a rice-polishing room provided with a resistance plate on the outlet side only once to polish rice (for example, Japanese Patent Laid-Open No. 2000-3).
No. 01099). In either method, the rice-polishing screen is provided with a number of slits for discharging the bran, and the rice-polishing roll is provided with a progressive feeding section having a fine pitch spiral at the base and a pitch A reverse feed consisting of a rough opposite spiral is provided.

In the above-mentioned rice polishing mechanism, the rice grains in the rice polishing screen are fed to the outlet side of the rice polishing screen by the action of the progressive feeding portion of the rice polishing roll, and the reverse feeding portion receives resistance in the pushing back direction. As a result, the rice grains are strongly rubbed with each other to perform rice polishing, and the bran generated by the rice polishing action is discharged from the slit of the rice polishing screen into the bran receiving container.

[0004]

[Problems to be Solved by the Invention] When the polished rice polished as described above is cooked, rice bran is used to wash away the bran adhering to the rice grains in advance. In addition, so-called unwashed rice from which the bran adhered to the rice grain has been removed is now in circulation.

In order to make non-washed rice, a commercially available domestic rice polishing machine is provided with a rice polishing machine having a rotary brush built-in in addition to the rice polishing machine, and the rice after rice polishing is transferred to the rice polishing machine to remove water. There is known a means for removing the bran adhering to rice grains by wiping a rotating brush without using it. Further, it is also known that a rotary type rice milling machine in which a rice polishing step utilizing centrifugal force is carried out after the rice polishing step.

[0006] However, it is inconvenient to use two rice polishing machines other than the rice polishing machine, because the number of equipment is two. In addition, the work of making non-washed rice also requires a rice polishing process after the rice polishing work,
There is also a problem that the brush of the rice polishing machine is easily worn while it takes time and effort. In addition, if the rotary type rice milling machine is used to perform milling using centrifugal force, there is an inconvenience that many cracks occur in the rice grain after milling.

Therefore, the present invention is a household rice milling machine having a rice-polishing mechanism comprising a combination of a rice-polishing screen and a rice-polishing roll. The problem is to provide a rice polishing machine for rice.

[0008]

In order to solve the above problems, the present invention is to insert a rice polishing roll into a cylindrical rice polishing screen provided in a rice polishing chamber and drive the rice polishing roll to drive the rice polishing screen. In the domestic rice milling machine, the rice grain sent from the inlet end of the rice is discharged from the outlet end, and the suction force is applied to the outer periphery of the rice polishing screen to suck and discharge the bran generated by the rice polishing. This is a configuration in which a suction hole for external air is provided in the vicinity.

According to the above construction, the polishing is performed by sucking and discharging the bran remaining near the outlet end of the rice polishing screen by the flow of the external air sucked from the suction hole, and at the same time the rice polishing is completed. Washed rice is obtained.

It is to be noted that the rice mill is a circulation type rice milling machine for performing rice polishing while circulating rice grains discharged from the outlet end of the rice polishing screen through a return passage and a hopper and returning to the inlet end. It is possible to adopt a configuration provided in a part of. In the case of this type, while continuing the circulation, the bran adhering to the rice grain near the outlet end of the rice polishing screen is sucked and discharged by the flow of the external air sucked from the suction hole, and the rice polishing is performed as described above. Be seen.

A single-pass type rice milling machine, in which a resistance plate is provided at the outlet end of the rice polishing screen, and the rice grains that have been milled are discharged to the outside through a gap between the resistance plate and the outlet end, It is possible to employ a configuration in which a hole is provided in the rice polishing chamber and a suction passage is provided between the suction hole and a part of the outer peripheral surface of the rice polishing screen. In the case of this type, the flow of external air acts on the rice grains immediately before they are discharged from the rice polishing screen, and the bran adhering to the rice grains is sucked and discharged to carry out polishing.

Further, in order to solve the above problems, a rice polishing roll is inserted into a cylindrical rice polishing screen provided in a rice polishing chamber, and the rice grain fed from the inlet end of the rice polishing screen is driven by driving the rice polishing roll. In a circulation type domestic rice milling machine that discharges rice from the outlet end and circulates the discharged rice grain in a circulation path that returns to the inlet end through a return passage and a hopper, a brush is applied to a part of the return passage. It is also possible to adopt a configuration in which the section is detachably provided.

In this case, in the return passage in the middle of circulation of the rice grains discharged from the outlet of the rice polishing screen, the rice grains come into contact with the brush portion and the bran is wiped off. The bran removed by wiping is discharged to the outside when passing through the inside of the rice polishing screen. The bran adhering to the brush portion is removed by removing the brush portion and cleaning it.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The domestic rice milling machine according to the first embodiment shown in FIGS. 1 and 2 is an inclined circulation type rice milling machine, and inside the casing 1, a rice milling motor 3 is mounted on a machine base 2 with a constant gradient, The rice polishing roll 4 attached to the motor shaft also extends obliquely upward with its gradient. A hopper 5 having an open upper surface is provided at an upper portion of the casing 1, and a discharge port 6 at a lower end portion of the hopper 5 communicates with an inside of a rice polishing chamber 7. The hopper 5 is provided with a lid 9.

The rice polishing chamber 7 is provided along the lower portion of the hopper 5 in an inclined state, and the outlet at the upper end thereof is opened to a vertical return passage 8. The upper end of the return passage 8 is opened to the hopper 5. Thereby, as shown by the arrow in FIG. 1, the hopper 5, the discharge port 6, the rice polishing chamber 7, the return passage 8 and the hopper 5 are
A circulation passage through which rice grains circulate is formed in this order.

A shutter 10 is provided below the discharge port 6.
The rice guide member 11 is provided via (see FIG. 2A), and the rice guide member 11 is opened onto the rice receiving container 12.

The lower part of the rice polishing chamber 7 is opened in the longitudinal direction, and is connected to the cyclone device 14 via the bran guide member 13. The bran separated by the cyclone device 14 is discharged to the bran receiving container 15 installed below the bran,
The air is sucked by the suction device 17 through the hose 16 and discharged to the outside.

The rice-polishing screen 18 housed inside the rice-polishing chamber 7 is formed by combining semi-cylindrical bodies with flanges 19 and 19 into a cylindrical body, and a large number of slits 21 are formed in the cylindrical portion. Is provided, and the bran is discharged from the slit 21. The rice cleaning screen 18 is the hopper 5.
The end portion on the discharge port 6 side serves as the rice grain inlet 22 and the end portion on the return passage 8 side serves as the outlet 23.

The milling roll 4 inserted into the above-mentioned milling screen 18 is provided with a progressive portion 4a consisting of a spiral with a fine pitch in the base portion, and a guide portion 4b in the middle portion by a required number of projections parallel to the axis. It is formed. At the tip portion, the ridge is formed into a reverse spiral having a coarse pitch to form a reverse feed portion 4c.

By the way, a mesh-shaped suction hole 24 is provided in the return passage 8 near the outlet 23 of the rice polishing screen 18 (see FIGS. 2 (a) and 2 (b)).
The suction holes 24 are a set of meshes of a size that does not allow rice grains to leak out, and there is one at a position facing the outlet 23, or one at each side (see 24 'in FIG. 2 (b)).
It is provided.

The domestic rice milling machine of the first embodiment is as described above, and a predetermined amount of brown rice is put into the hopper 5,
When a start key (not shown) is turned on, the microcomputer executes the rice-polishing process, the rice-polishing motor 3 is driven, and the rice-polishing is started. The brown rice that has entered the rice polishing chamber 7 through the discharge port 6 of the hopper 5 is fed by the action of the progressive feeding portion 4a of the rice polishing roll 4, while the backward feeding action of the backward feeding portion 4c and the rice polishing chamber 7 are performed.
Friction between the brown rice particles is generated inside the rice-polishing screen 18 due to the gravity due to the inclination of the rice grains, and the rice grains are gradually polished by the friction, and the rice grains from the outlet 23 are circulated to return to the hopper 5 through the return passage 8.

The bran generated inside the rice polishing screen 18 during the circulation is sucked by the suction force of the suction device 17,
It exits from the slit 21 and falls on the bran guide member 13, and further enters the cyclone device 14. In the cyclone device 14, the bran and the air are separated, and the separated bran is discharged to the bran receiving container 15. Also, the air is hose 1
6 is sucked by the suction device 17 and discharged to the outside.

Simultaneously with the suction, the external air is sucked from the suction hole 24 or 24 'of the return passage 8. The sucked air entrains the bran remaining near the outlet of the rice-polishing screen 18, is sucked from the bran guide member 13 to the cyclone device 14, and is separated from the air.
That is, if there is no suction hole 24 or 24 ', the bran exiting from the outlet 23 of the rice-polishing screen 18 returns to the hopper 5 together with the rice grain. It As a result, when the rice polishing is completed, it is possible to obtain milled rice grains that have been sufficiently bran-removed, that is, non-washed rice.

Next, the domestic rice milling machine of the second embodiment shown in FIGS. 3 and 4 is a single-pass type rice milling machine, and in this case, the rice polishing roll 4, the rice polishing screen 18, and the rice polishing chamber 7 are horizontal. Placed in a state. The point that the inlet 22 of the rice polishing screen 18 communicates with the outlet 6 of the hopper 5 is similar to the above-mentioned case, but the outlet 23 is inserted into the end plate 25 of the rice polishing chamber 7 and opened to the outside. As shown in FIG. 4, the end plate 25 is engageably and disengageably engaged with the engaging portions 27, 27 of the rice polishing chamber 7 by the snap stop pieces 26, 26 provided on the left and right.

A resistance plate 28 is pressed against the outlet 23 of the rice polishing screen 18 with a required pressing force. Resistance plate 2
8 is supported by a pressure adjusting arm 31 of a pressure adjusting device 29 provided in the upper part of the rice polishing chamber 7 via an interlocking plate 32. Resistance plate 2
The pressing force of 8 is adjusted through the pressure adjusting device 29. A discharge chute 33 is attached to the end plate 25 around the outlet 23 of the rice polishing screen 18.

The lower end of the rice-polishing chamber 7 is open, and the bran guide member 13 is attached to the open portion. Although illustration of the bran guide member 13 is omitted, as in the case of the first embodiment, the cyclone device 14 is provided.
(See FIG. 1), connected to a suction device 17 via a hose 16.

In the above-described rice-polishing chamber 7, mesh-shaped suction holes 34, 34 are provided on the left and right side surfaces near the outlet 23 of the rice-polishing screen 18. In this case, the suction holes 34, 3
The mesh of No. 4 is also set to a size such that rice grains do not leak out.

Inside the suction holes 34, 34,
An upper partition wall 41 and a lower partition wall 42 that reach the rice polishing screen 18 from the inner surface of the rice polishing chamber 7 with the suction holes 34, 34 interposed therebetween.
And the upper and lower partition walls 41, 42 are provided.
An inner wall 43 is provided between the inner ends of the. These partition walls 41,
A suction passage 44 reaching the outer peripheral surface of the rice polishing screen 18 from the suction holes 34, 34 is constituted by the inner wall 42 and the inner wall 43.

The second embodiment is as described above,
Similar to a normal single-pass type rice milling machine, by driving the rice polishing roll 4, a large friction is generated on the rice grain inside the rice polishing screen 18 closed by the resistance plate 28, and the resistance plate is pressed with a certain pressing force or more. Discharge chute 3 while pushing 28 open
Rice milled rice from 3 is discharged to a rice receiving container (not shown).

The bran produced during the rice polishing process is sucked through the bran guide member 13 and discharged to an external bran receiving container (not shown). At the same time, outside air is sucked through the suction holes 34. Rice grains that have been substantially polished are present in the vicinity of the outlet 23, but if there is no suction hole 34, the bran is discharged without being sufficiently removed. However, since the suction holes 34 are provided, the external air sucked from the suction holes 34 enters the inside through the suction passages 44 through the slits 21 on the outer peripheral surface near the outlet 23 of the rice polishing screen 18. While the air flow moves from the central portion of the rice polishing screen 18 to the bran receiving member 13 side (see arrow a in FIG. 3A), the bran adhering to the rice grain is caught and discharged to the outside. As a result, the milled rice grains that have been milled and the bran is sufficiently removed, that is, non-washed rice, are discharged from the outlet 23.

Next, the third embodiment shown in FIG.
The present invention is applied to the same inclined circulation type rice milling machine as in the embodiment, in which the return passage 8 is provided with a brush portion 35 instead of the above-described configuration in which the suction holes 24 and 24 'are provided. The brush portion 35 is fitted into a window hole 36 provided in the return passage 8 from the outside, and snap-fitting pieces 37, 37 are engaged with the engaging hole 3.
It is detachably attached by engaging with 8, 38. In this case, the bristles of the brush portion 35 are required to have such a length and rigidity that they can come into contact with the rice grains passing through the return passage 8 and wipe the bran adhering thereto.

When the above-described brush portion 35 is provided for rice polishing, the bran adhering to the rice grains discharged from the outlet 23 of the rice polishing screen 18 is wiped off by the brush portion 35 while passing through the return passage 8. To be rice. The wiped bran adheres to the brush portion 35, or circulates together with the rice grains and is discharged from the rice polishing screen 18. As a result, non-washed rice is obtained.

It is desirable that the brush portion 35 be regularly removed and cleaned.

[0034]

INDUSTRIAL APPLICABILITY As described above, the present invention obtains non-washed rice at the same time as the completion of rice polishing by polishing rice bran remaining near the outlet of the rice polishing screen by suctioning external air or wiping with a brush. You can Further, the rice polishing by air suction can be adopted in both the circulation type and the single-pass type.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2A is a partially enlarged sectional view of the above. (B) Partial perspective view of (a) figure

FIG. 3A is a cross-sectional view of a rice-polishing chamber portion of the second embodiment. (B) Sectional drawing of the bb line of (a) figure

FIG. 4 is an exploded perspective view of the above.

FIG. 5A is a partial cross-sectional view of the third embodiment. (B) Sectional drawing of the bb line of (a) figure (C) (a) Exploded perspective view

[Explanation of symbols]

1 casing 2 units 3 Motor for rice polishing 4 Rice mill roll 4a Forwarding unit 4b Guide 4c Reverse feed unit 5 hopper 6 outlets 7 rice mill 8 Return passage 9 lid 10 shutter 11 Rice guide member 12 rice container 13 Bran guide member 14 Cyclone device 15 Bran container 16 hoses 17 Suction device 18 rice polishing screen 19 brim 21 slits 22 entrance 23 exit 24, 24 'suction holes 25 end plate 26 snap stop 27 Engagement part 28 Resistance plate 29 Pressure regulator 31 Pressure regulating arm 32 interlocking board 33 Discharge chute 34 Suction hole 35 Brush 36 windows 37 Snap stop 38 Engagement hole 41 Upper bulkhead 42 Lower partition 43 back wall 44 Suction passage

[Procedure amendment]

[Submission date] June 5, 2002 (2002.6.5)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuo Naoi             1-20-5 Tenma, Kita-ku, Osaka City Zojirushi Maho             Inside Bin Co., Ltd. (72) Inventor Takeo Yamamoto             1-20-5 Tenma, Kita-ku, Osaka City Zojirushi Maho             Inside Bin Co., Ltd. (72) Inventor Mitsuo Tanaka             2587 Toyoshina, Toyoshina-cho, Minamiazumi-gun, Nagano Prefecture             Hosokawa Manufacturing Co., Ltd. F term (reference) 4D043 AA03 DA03 DH37 DH47 DH69                       DH71 HA02 HA07 HB08 JC04                       JD02

Claims (4)

[Claims] 1. A rice polishing roll is inserted into a cylindrical rice polishing screen provided in a rice polishing chamber, the rice polishing roll is driven to discharge the rice grains fed from the inlet end of the rice polishing screen from the outlet end, and the rice polishing is performed. A domestic rice polishing machine adapted to apply suction force to the outer periphery of the screen to suck and discharge the bran generated by rice polishing, characterized by having a suction hole for external air near the outlet end of the rice polishing screen. Rice milling machine. 2. A circulation type rice milling machine for performing rice polishing while circulating rice grains discharged from an outlet end of the rice polishing screen through a return passage and a hopper and returning to an inlet end, wherein the suction hole is used as a return passage. The domestic rice milling machine according to claim 1, wherein the rice milling machine for home use is provided in a part of the. 3. A single-pass type rice milling machine, in which a resistance plate is provided at the outlet end of the rice polishing screen, and the rice grains that have been milled are discharged to the outside through a gap between the resistance plate and the outlet end. The domestic rice polishing machine according to claim 1, wherein a hole is provided in the rice polishing chamber, and a suction passage is provided between the suction hole and a part of the outer peripheral surface of the rice polishing screen. 4. A rice polishing roll is inserted into a cylindrical rice polishing screen provided in a rice polishing chamber, the rice polishing roll is driven to discharge the rice grains fed from the inlet end of the rice polishing screen, and then discharged. In a circulating type domestic rice milling machine that performs rice polishing while circulating rice in a circulation path that returns rice grains to the inlet end through a return passage and a hopper, a brush portion is detachably provided in a part of the return passage. A characteristic rice mill for home use.