JP2001113189A - Household agitation type rice cleaning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an agitation rice cleaning machine which removes the aleurone layers existing on the surfaces of commercially marked milled rice by polishing the milled rice, eliminates the needs for rice washing using water at home, executes uniform rice polishing with ease of the regulation of a rice polishing level, smoothes the surfaces of rice grains and hardly generates broken rice. SOLUTION: This machine has a hopper 12 which houses the milled rice and vane members 13 which rotate in a horizontal direction and agitate the milled rice. The hopper 12 has a bran removing section 12a which is formed with perforations in part of a circumferential direction as well as a milled rice discharge opening 12b and a freely openable and closable milled rice discharge door 12c. The bran removing section 12a is made of metal and the holes formed at the section are formed by punching from the inner side. Shear droops are formed on the boundary side with the inside surface of the hopper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small household rice-free washing machine.

[0002]

2. Description of the Related Art Brown rice obtained by dehulling rice hulls as a hull with a huller is polished by a rice mill to remove germ and bran layers, and is then polished and used for food. The brown rice is shown in FIG.
As shown in the figure, the sample consists of endosperm a, surrounding aleurone layer (sticky bran layer) b, germ c and bran layer d. By the way, a home-use circulating rice mill (see Japanese Patent Application Laid-Open No. 5-253501).
A paste layer remains on the surface of rice milled through a pressure-type rice mill or a commercially available milled rice such as a rice mill with a single pass or a rice mill (see JP-A-4-74539 and JP-A-5-49038). This lowers the taste and causes the smell of bran. Further, after several days from the milling, the aleurone layer is oxidized, deteriorating the quality of the rice from the surface. It is difficult to remove all of the aleurone layer without damaging the endosperm (starch layer) inside it with current rice milling technology. Therefore, immediately before cooking the rice, the rice is ground with water and the aleurone layer and oxide film are removed. Has been removed. However, sharpening rice is quite time-consuming,
It is difficult to adjust the sharpness, and there is a problem of polluting the sewage environment by discarding starch that is easily soluble in water as sharpening juice. This sharpening juice is a major source of pollution in domestic wastewater.

On the other hand, as one type of household rice mill, a stirring type rice mill is known (see Japanese Patent Application Laid-Open No. 11-197521). In this stirring rice milling machine, a required amount of brown rice is put into a net basket-shaped rice mill, a blade member for stirring is rotated in the rice mill, and the brown rice is stirred at a high speed to mill rice. By the rotation of the blade member, the brown rice is stirred and milled in the milled rice basket, and the generated bran passes through the mesh of the milled rice basket and is discharged to a bran container arranged around the milled rice basket. This agitation type rice mill is smaller than a conventional pressure type rice mill, suitable for small amount of rice milling, and has an advantage that any kind of rice can be milled. In addition, there is a characteristic that the rice bran is well cut (the rice bran separated from the rice is discharged well and the rice polished with little adhesion of the rice bran is obtained), and the paste layer is removed to make the rice grain surface a glossy smooth surface.

[0004] However, it has been found that the following problems occur when brown rice is polished using this stirred rice mill. In other words, unpolished rice, immature rice, discolored rice, etc. are often mixed in brown rice (a certain percentage is allowed by regulations), and when this is polished with a circulation type rice mill or a single pass rice mill, the rice becomes The rice husks are drained together with the bran, and the immature rice and the colored rice are fragile and shattered and discharged together with the bran. However, if brown rice is polished with a stirring rice mill, the paddy will remain as it is, and unripe rice and discolored rice will remain in the polished rice basket without shattering, so that paddy, immature rice, discolored rice will be mixed in the polished rice . Such rice cannot be favored by consumers, and therefore, as a practical matter, it has to be said that this stirred rice mill is not suitable as a rice mill.

[0005]

The agitation type rice milling machine has the characteristics that the rice bran is cut well, the paste layer is removed, and the rice grain surface can be made glossy and smooth.
So-called non-washed rice can be cooked without polishing the polished rice with water. On the other hand, there is a fatal disadvantage that paddy, immature rice and discolored rice cannot be excluded. However, since rice milling and commercial rice milling through pressure-type circulation rice mills and single-pass milling machines do not contain paddy, immature rice, and discolored rice,
When this stirred rice mill is used only for removing the aleurone layer of the milled rice, that is, when used as a non-washing rice mill for polishing the milled rice, the above-mentioned drawback does not cause any problem, You can make use of only the advantages.

However, when the conventional stirring rice mill is used as it is as a non-washing rice machine and the milled rice is further polished to obtain non-washed rice, the following problems have been found. That is, when brown rice covered with hard skin is polished, strong stirring action and frictional force are required. The bran is rubbed against the wire mesh to remove the bran, and the removal amount is about 10% of the mass of brown rice. However, when polishing polished rice, there is no hard skin, and a relatively soft paste layer (sticky bran) ) Only needs to be polished a little (2% of the mass of the polished rice), and a strong polishing action is not required. Conversely, a strong polishing action makes it difficult to adjust the level of polished rice and make uniform polished rice. Raise new problems such as increasing Accordingly, an object of the present invention is to solve the above-mentioned problems when a rice-milling method of a stirring rice mill is used for a rice-free rice washing machine.

[0007]

SUMMARY OF THE INVENTION A household stirring type rice-free washing machine according to the present invention comprises a hopper for accommodating milled rice and a stirring member for rotating the milled rice horizontally at the bottom thereof to agitate the milled rice. It comprises a bran removing part formed in a part or all in the circumferential direction to be porous, and further, the hole formed in the bran removing part,
It is characterized in that a person is formed on the side of the boundary with the inner surface of the hopper. Further, the household stirring type rice-free rice washing machine according to the present invention includes a hopper for accommodating milled rice and a stirring member for rotating the milled rice horizontally at the bottom thereof to agitate the milled rice, and the hopper is partially porous in the circumferential direction. The rice bran removal part, a white rice discharge opening and an openable white rice discharge door, and the hole formed in the rice bran removal part is formed on the boundary side with the inner surface of the hopper. It is characterized by.

[0008] As described above, the inside of the hole has a droop (roundness on the shoulder of the hole), so that the inner surface of the bran removing portion of the hopper becomes smooth, and even if the rice is rubbed by stirring, the surface is scraped off. There is almost no polished rice, and the friction between polished rice by stirring is dominant in the polished rice, and the polished rice is performed gently. Therefore, it is easy to adjust the level of the polished rice, and the polished rice is uniformly polished, the surface of the rice grain is smoother, and the crushed rice is hardly generated. If the bran removing portion of the hopper is made of metal, the drain on the boundary side with the inner surface of the hopper can be formed, for example, by punching a hole outward from the inside of the hopper with a punch. In the stirring rice mill, the brown rice having a hard skin is rubbed against the wire mesh of the hopper by centrifugal force, whereby the bran is scraped off and the rice is milled, so that the edge of the wire mesh is continuously used. The rice milling function tends to deteriorate due to wear, and it is necessary to replace the hopper with a new one each time.However, in the case of a non-washing rice machine, the rice mill used is relatively soft, and wear itself is unlikely to occur. If it occurs, it does not have a negative effect and does not need to be replaced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to FIGS. FIG. 1 and FIG. 2 show an example of a stirring type non-washing rice machine according to the present invention, in which a hopper 12 for accommodating milled rice in a case 11 and a blade member 13 for stirring are arranged inside thereof. A lid member 14 covers the top,
The hopper 12 includes a bran removing portion 12a formed in a part in the circumferential direction, and a white rice discharge opening 12b and an openable and closable white rice discharge door 12c in another part in the circumferential direction.
A rice bran container 15 having an opening covering the rice bran removing portion 12a is provided on the outside of the rice removing portion 12a of the hopper 12 in a detachable (removable and retrievable manner from a lateral direction (see arrow)). A white rice container 16 having an opening covering the white rice discharge opening 12b is detachably provided (can be taken in and out from the lateral direction (see arrow)). Furthermore, case 11
A motor 17 is installed at the lower part of the
Bearing 1 is installed at the center of the bottom of hopper 12
The blade member 13 is supported by 2d and protrudes into the hopper 12, into which the blade member 13 is detachably attached, and rotates together with the rotating shaft 17a.

The bran removing portion 12a of the hopper 12 is provided from the outer peripheral portion of the bottom surface to the lower half portion of the side surface in a part of the hopper in the circumferential direction (range indicated by an arrow in FIG. 2). The bran removing portion 12a has, for example, a long hole (for example, 1 mm ×
(Approximately 12 mm). In forming this hole, it is desirable to punch out from the inside and form a droop 10a at the boundary between the hole 10 and the inner surface of the hopper, as shown in FIG. 3, for example.
The droop 10a generally increases when the clearance between the punching die and the punch is large.
0.6 mm may be used as a guide. However, it is not limited to this. White rice discharge opening 12b
Is provided at the bottom of the hopper (from the bottom to the side in this example) at a position separated in the circumferential direction, and the white rice discharge door 12c is provided in the white rice discharge opening 12b so as to have no step with the inner wall of the hopper 12, For example, it can be opened and closed in the direction of the arrow by an opening and closing mechanism (not shown) using an electromagnet (see a solid line and a virtual line in FIG. 1).

In this stirred riceless rice washing machine, a required amount of rice is put into a hopper 12, and the opening is covered with a cover member 14.
When the motor 17 is driven, the blade member 13 rotates at high speed, and the rotary blade 13a stirs rice at high speed. This high-speed stirring causes the rice to collide with each other and remove the aleurone layer from the polished rice, and the generated bran falls into the bran container 15 below through the holes in the bran removing section 12a. The rice polishing time is preset by a timer, for example, and if the opening and closing mechanism of the white rice discharge door 12b is activated shortly before the set time is reached,
White rice discharge door 12c while blade member 13 is still rotating
Automatically opens, the white rice falls into the white rice container 16 through the white rice discharge opening 12b by the stirring force of the rotating blades 13a,
When the set time has been reached, the opening / closing mechanism operates in reverse to close the white rice discharge door 12c.

When the polishing is completed, the white rice container 16 is removed from the case 11 sideways, the white rice in the container is transferred to another container, and then simply returned to the original container. On the other hand, when the rice bran 15 is full of rice bran after a plurality of times of polishing rice, or at an appropriate time, the rice bran may be extracted laterally from the case 11 to discharge the rice bran. Thus, in the above-mentioned stirring type rice-free rice washing machine, the hopper 1
There is no need to touch or remove the blade 2 or the blade member 13, and the operation of removing the bran from the bran container 15 does not necessarily need to be performed every time. Moreover, the rice-free rice washing machine itself can be made compact.

In this rice washing machine, the blade member 1
It is desirable that the rotation speed of No. 3 be variable. Specifically, it is conceivable that the rotation speed can be selected, or that the rotation speed is automatically reduced in the middle of the set time.
In the latter case, for example, it is preferable that the rotation speed is initially high, and after a certain period of time, the rotation speed is automatically switched to low speed.
At this time, the rotation speed may be changed twice or more, or may be changed continuously. The reason why the rotation speed is made variable is that high-speed rotation is desirable in order to quickly remove the aleurone layer, and low-speed rotation is more desirable in order to make the surface of the rice grain glossy and smooth. In addition, low-speed rotation is also advantageous for improving rice bran and obtaining rice with less adhesion of rice flour. At low speeds, the size of the aleurone layer is rapidly and slowly removed.For example, if the speed is switched from high speed to low speed when approaching the planned grinding rice level, the rice grain surface will be smooth after switching. In addition, since it is possible to discharge the bran from the holes of the bran removing portion 12a in the same manner as before without generating new bran, there is almost no adhesion of the bran and the white rice having a glossy smooth surface Can be obtained.

FIG. 4 shows another example of the stirring type riceless rice washing machine according to the present invention. The major difference from the stirred riceless washing machine shown in FIG. 1 is that the white rice container is not provided in the case 21,
The point is that the pressure inside the bran container 25 is reduced, and the bran is sucked into the bran container 25 from the hopper 22. More specifically, the difference between the structure and the effect is shown.
It looks like this: The white rice discharge door 22c of the hopper 22 is rotated about the upper end by an opening / closing mechanism (not shown) (solid line and virtual line), and a flow plate 26 is installed below the white rice discharge opening 22b. When the white rice discharge door 22c is opened, the white rice flows through the flow plate 26 into the container placed below. Since the white rice container is not provided in the case 21, the structure is simplified, the amount of rice polishing is not limited to the volume of the white rice container, and the bran container 2 is not used.
The space occupied by 5 can be widened.

A number of small holes 24a, 25a are formed on the bottom of the lid member 24 and the bran container 25, a fan 28 is disposed below the bran container 25, and a hole 21a is also formed in the case 21. When the fan 28 is operated, the inside of the bran container 25 is decompressed, and the hopper 2 is
2, a hole in the bottom of the bran container 25
a, a flow of air passing through the hole 21a of the fan 21 and the case 21 occurs (see the arrow), and the bran adhering to the hole of the bran removing portion 22a and the inner wall of the hopper 22 is actively sucked into the bran container 25. Therefore, the separation of the white rice and the bran is promoted, and the adhesion of the bran to the holes of the bran removing portion 22a and the inner wall of the hopper 22 is reduced. Although not particularly limited, the fan 28 is preferably set to operate and stop simultaneously with the blade member 23, and the power can be taken from the motor 27. In order to prevent the scattering of bran, as exemplified in FIG.
It is desirable to install the filter 29 so as to cover at least the hole 25 a, or to install a bag-shaped filter inside the bran container 25 for use, for example, in a vacuum cleaner.

A pulley 31 is provided near the upper end of a rotating shaft 27a of the motor 27, and a pulley 33 is provided at a lower end of the rotating shaft 32 of the blade member 23. These are connected by a belt 34 so that the power of the motor 27 is transmitted to the blade member 23. To communicate. This structure is to take up space for the fan 28 and is merely ancillary.

FIGS. 5 and 6 show other examples of the stirring type riceless rice washing machine according to the present invention. The major difference from the stirred riceless rice washing machine shown in FIG. 1 is that the white rice container is not disposed in the case 41 and the white rice discharge opening 42b of the hopper 42 overlaps with the bran removing portion 42a in the circumferential direction of the hopper. This is a point provided at the position. More specifically, the difference between the structure and the difference in operation and effect will be described below. The white rice discharge door 42c of the hopper 42 is rotated about the upper end by an opening / closing mechanism (not shown) (solid line and virtual line), and a flow plate 46 is installed below the white rice discharge opening 42b. When the white rice discharge door 42c is opened, the white rice flows through the flow plate 46 into the container placed below.

A bran removing portion 42a is formed in a part of the hopper 42 in the circumferential direction, and a white rice discharge opening 42b is formed in an overlapping position in the circumferential direction.
Outside the bran removing section 42a of the hopper 42, the bran removing section 42a
A bran container 45 having an opening for covering the bran is provided in a horizontally detachable manner. The bran container 45 is cut into circumferentially inner and outer side walls so as to be detachable without interfering with the flow plate 46. Notches 46a and 46b are formed. Bran removal part 4
By setting the 2a and the white rice discharge opening 42b at positions overlapping in the circumferential direction, the white rice and the bran can be taken out in the same direction (forward).

FIG. 7 shows another example of the stirring type riceless rice washing machine according to the present invention. The difference from the conventional agitated rice-free rice washing machine (particularly those shown in FIGS. 4 and 5) is that a storage device 53 for storing and measuring and discharging the polished rice above the hopper 52 is provided. The storage device 53 includes a rice storage hopper 54 and a measuring chamber 55 connected to a lower end thereof. In the measuring chamber 56, a measuring rotating body 56 in which three radial fins 56b are formed at equal angles around an axis 56a is arranged, and by rotating the knob 57, a fixed amount is turned every １ ／ rotation. The rice is released downward. By arranging such a milled rice storage device 53 above the hopper 52, for example, commercially available milled rice can be stored in the storage device 53.
It is convenient to measure the required amount at the same time as grinding rice at the same time.

In each of the above-mentioned stirrer-type rice-free washing machines, a bran removing section is provided only in a part of the hopper in the circumferential direction, and a white rice discharge opening and a white rice discharge door which can be freely opened and closed are provided in the hopper. Following the structure of the agitated rice milling machine, a bran removing section may be provided in the entire circumferential direction of the hopper, and the hopper is not provided with a white rice discharge opening and a white rice discharge door. Good. In the above example, the number of holes formed in the bran removing portion is elongated, but various shapes such as circular holes and square holes can be used as long as the bran can be discharged to the outside.

[0021]

EFFECT OF THE INVENTION According to the agitated rice-free washing machine of the present invention, the aleurone layer and the oxide film are efficiently removed from the polished rice, and the rice has good taste.
It is possible to obtain white rice free from mixing of paddy, immature rice, discolored rice and the like. Moreover, in the stirred riceless rice washing machine of the present invention,
In the rice polishing action, friction between milled rice by stirring becomes dominant,
The rice polishing action is performed slowly. Therefore, it is easy to adjust the level of the polished rice, and the polished rice is uniformly polished, the surface of the rice grain is smoother, and the crushed rice is hardly generated. And since the rice bran is well cut and there is almost no adhesion of the rice bran powder to the rice after polishing, the rice after polishing can be cooked as it is without polishing or washing with water as in the prior art (the so-called no rice). It can be used for washing rice). Therefore, it is not necessary to wash and grind the rice so far, and since the sharpening juice, which is a polluting source of large water pollution, does not need to be discharged as domestic wastewater, it is possible to contribute to the conservation of water quality at the household level.

[Brief description of the drawings]

FIG. 1 is a sectional view of a stirring type riceless rice washing machine according to the present invention.

FIG. 2 is a plan view with a lid member removed.

FIG. 3 is a sectional view of a hole formed in a bran removing section.

FIG. 4 is a cross-sectional view of another stirring type rice-free rice washing machine according to the present invention.

FIG. 5 is a cross-sectional view of still another stirring-type rice-free washing machine according to the present invention.

FIG. 6 is a plan view with the lid member removed.

FIG. 7 is a cross-sectional view of still another stirring type riceless rice washing machine according to the present invention.

FIG. 8 is a view showing the structure of brown rice.

[Explanation of symbols]

 Reference Signs List 10 Bran removal hole 10a Hole dripping portion 11, 21, 41 Case 21a Hole 12, 22, 42, 52 Hopper 12a, 22a, 42a Bran removal portion 12b, 22b, 42b White rice discharge opening 12c, 22c, 42c White rice discharge Door 13, 23 Blade member 14, 24 Lid member 24a Small hole 15, 25, 45 Bran container 16 White rice container 25a Small hole 26, 46 Flow plate 28 Fan 29 Filter 53 Storage device 55 Metering chamber 56 Metering rotating body

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Jiro Sugimoto 447 No. 4 Shimoichi, Sanyo-cho, Akaiwa-gun, Okayama Prefecture F-term (reference) 4B053 AA01 BA17 BB02 BE06 BE12 BF02 BF13 BK02 BL01 BL09 4D043 DA06 DL04 DL10

Claims (3)

[Claims] 1. A hopper for accommodating polished rice and a stirring member which rotates in a horizontal direction at the bottom thereof and agitates the polished rice, wherein said hopper has a bran removing portion formed in a part or whole thereof in a circumferential direction. Provided, further, the hole formed in the bran removal section,
A stirrerless rice washing machine for household use, characterized in that a wholage is formed on the boundary side with the inner surface of the hopper. 2. A hopper for accommodating polished rice and a stirring member for rotating the polished rice horizontally at the bottom thereof to agitate the polished rice. A household stirring type non-washing rice for household use, comprising a discharge opening and an openable and closable white rice discharge door, and a hole formed in the rice bran removing part is formed at a boundary side with an inner surface of a hopper. Machine. 3. The hopper according to claim 1, wherein at least the bran removing portion is made of metal, the hole formed in the bran removing portion is a punching hole, and who is formed by punching. 2. A household stirring type non-washing rice machine described in 2.