JPH0824681A - Device for equally dividing rice - Google Patents

Abstract

PURPOSE:To divide a long rice grain into equal halves in its longitudinal direction and improve the yield without forming irregular or granular shape by installing a couple of equally dividing rollers for equally dividing rice grains passing through a clearance between the peripheral faces of the rollers facing each other by difference of peripheral speeds. CONSTITUTION:The rice dividing device 1 is constituted basically of a main body case 10, a hopper 20 installed on a rice feed opening 11, a couple of equally dividing rubber rollers installed below the rice feed opening 11, a blower 50 sucking very fine grains after being equally divided by means of a driving motor 60 and a belt 70. A fixing roller 30 on one side of a couple of equally dividing rollers is installed on a main body case 10 through a fixing arm 31 fixed thereon, while movable another roller 40 on the other side is installed on the main body case 10 through an arm component 41 to be rocked freely. Thus the rice fed from the hopper 20 can be passed through between both rollers 30 and 40, and the rollers are fitted at an interval in which equal dividing can be performed, and rice can be divided equally by the difference of peripheral speeds of both rollers 30 and 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice equalizer for equally dividing long-grain rice in the longitudinal direction.

[0002]

[Prior Art] In recent years, due to the shortage of rice in Japan, rice has been imported to Japan from countries such as Thailand, China, Australia and the United States. Some of the imported rice is different in size and shape compared to domestic rice in Japan, so some of it may not be preferred in Japan. Also, some of the imported rice has disadvantageous conditions such as equipment, storage and long distance transportation.
There are many things that have foreign substances such as stones and screws mixed in.

Among imported rice, Thai rice and other long-grained rice are divided into approximately half in the longitudinal direction before and after the rice polishing process to eliminate discomfort and increase the surface area of rice.
It is conceivable to increase the water content of the rice so that it is no different from domestically produced rice in Japan.

Here, it is known that a long grain rice can be halved in the longitudinal direction using a crusher or the like.

[0005]

However, in a crusher or the like, although long-grain rice is divided into equal parts, a large amount of non-specified rice with finer grains than the equal-part rice is produced, and the yield is not good. There is a problem. It is also possible to reduce the size of long-grain rice to half the size in the longitudinal direction by using a rice polishing machine, a polishing machine, etc. is there. The present invention has been made by paying attention to the problems of the conventional technique, and it is possible to improve the yield. Also, a foreign substance having a diameter larger than rice is mixed into the rice to form a pair of equal parts. When it is supplied between the rollers, the movable roller is displaced in the direction away from the fixed roller against the biasing force to absorb the impact of foreign matter, and an abnormal load is applied to the drive system of the device. It is an object of the present invention to provide a rice splitting device capable of preventing the above.

[0006]

[Means for Solving the Problems]

1 In a rice equalizing device that divides long grain rice into approximately half in the longitudinal direction, it is attached to the device body (10) so that its peripheral surfaces face each other. , A pair of equally-divided rollers (3) formed by evenly dividing the rice passing through the gap between the opposing peripheral surfaces.
0, 40), and a rice equalizer.

2 In a rice equal-division device that divides long-grain rice into approximately half in the longitudinal direction, the device body (1
0) via a fixed arm (31) and a fixed roller (30) and a movable roller (40) attached to the main body (10) of the apparatus via a swingable arm member (41), Due to the difference in the peripheral speeds of both rollers (30, 40), a pair of rice is divided into equal parts that pass through the gap between the peripheral surface of the fixed roller (30) and the peripheral surface of the movable roller (40). The movable roller (40) is urged toward the fixed roller (30) through the equally dividing rollers (30, 40) and the swingable arm member (41) to move the fixed roller (30) and the movable roller (40). When a large foreign substance having a diameter larger than rice is supplied between the movable roller (40) and the roller (40), the movable roller (40) is displaced in the direction of separating from the fixed roller (30) against the urging force thereof. Urging means (80) capable of absorbing the impact of the large-diameter foreign matter. Such as rice split device characterized by comprising a.

3 In a rice equalizing device that divides long grain rice into approximately half in the longitudinal direction, the device main body (1
0) fixed roller (3) attached via fixed arm
0) and an arm member (41) that can swing on the apparatus body (10)
It is composed of a movable roller (40) which is attached via, and due to a difference in peripheral speed of both rollers (30, 40),
The peripheral surface of the fixed roller (30) and the movable roller (4
0) a pair of equal-divided rollers (30, 40) formed by dividing rice that passes through the gap between the peripheral surface and the drive motor (6).
0) and a drive system having the fixed roller (30), the movable roller (40) and a belt (70) wound around the drive motor (60), and the swingable arm member (41). The movable roller (40) is urged to the fixed roller (30) side via the, and a large foreign substance having a diameter slightly larger than rice is supplied between the fixed roller (30) and the movable roller (40). When the movable roller (4
0) is displaced in the direction away from the fixed roller (30) against the urging force of the fixed roller (30) to absorb the impact of the large-diameter foreign matter, and the drive motor. The belt (70) is provided via a drive motor supporting means (61) for attaching the (60) to the apparatus body (10).
The drive motor (60) is urged in a direction that makes the straining force of the first urging means (80) larger than the urging force of the first urging means (80). When a foreign particle is supplied, the movable roller (40) pulls the drive motor (60) via the belt (70), and the drive motor (60) moves against its urging force, The movable roller (40) is a fixed roller (30)
And a second urging means (90) capable of absorbing a shock caused by the excessively large foreign matter and being largely displaced in a direction away from the rice equalizing device.

[0009]

When rice passes through the gap between the peripheral surface of the facing roller and the peripheral surface of the roller facing each other, one of the roller rollers (40) moves to the other roller because of the difference in peripheral speed between them. The rice comes to be pressed against the curved peripheral surface of the split roller (30),
The rice will be evenly divided in half in the longitudinal direction. The movable roller (40) is urged toward the fixed roller (30) via the swingable arm member (41), and the fixed roller (30) is moved.
A direction in which the movable roller (40) separates from the fixed roller (30) against the urging force thereof when a large foreign substance having a diameter larger than rice is supplied between the movable roller (40) and the movable roller (40). And a biasing means (80) capable of absorbing the impact of the large-diameter foreign matter, the rice mixed with rice between the fixed roller (30) and the movable roller (40). Then, when a large foreign substance having a diameter larger than the rice is supplied, the movable roller (40) is displaced in the direction away from the fixed roller (30) against the urging force of the urging means, and the large foreign substance causes It is able to absorb impacts, for example, even rollers (3
(0, 40) can be prevented. A drive motor (60), the fixed roller (30),
The movable roller (40) and the drive motor (60)
The movable roller (40) is urged toward the fixed roller (30) via the drive system having the belt (70) wound around the movable roller (40) and the swingable arm member (41) to move the fixed roller (3).
0) and the movable roller (40) are supplied with a large foreign substance having a diameter slightly larger than rice, the movable roller (40) resists the urging force of the fixed roller (30).
A first biasing means (80) which is displaced in a direction away from the main body so as to be able to absorb the impact of the large-diameter foreign matter, and a drive motor support means (61) for attaching the drive motor (60) to the main body. The drive motor (60) is urged in a direction in which the belt (70) is tensioned via the, and the urging force is set to be larger than the urging force of the first urging means (80). The movable roller (40) pulls the drive motor (60) through the belt (70) when an oversized foreign substance having a diameter significantly larger than the rice is supplied,
The drive motor (60) moves against its biasing force,
The movable roller (40) is largely displaced in the direction away from the fixed roller (30), and the second urging means (90) capable of absorbing the impact caused by the extra-large diameter foreign matter is provided. The fixed roller (30) and the movable roller (4
0), when mixed with rice and a large foreign substance having a diameter slightly larger than that of rice is supplied, the movable roller (40) resists the urging force of the first urging means (80). Fixed roller (30)
It is possible to absorb the impact caused by the large-diameter foreign matter by displacing in a direction away from the. At this time, the drive motor support means (61) is supported by the biasing force of the second biasing means (90), and the drive motor (60) does not move. The fixed roller (30) and the movable roller (40)
When mixed with rice in the meantime and an excessively large foreign substance having a diameter significantly larger than that of rice is supplied, the movable roller (40) causes the belt (7) to move.
0) pulling the drive motor (60), the drive motor support means (61) moves against the urging force of the second urging means (90), and the drive motor (60) moves, The belt (70) becomes slack, and the movable roller (40) is largely displaced in the direction away from the fixed roller (30),
It is possible to absorb the impact caused by foreign matter having an excessively large diameter.

That is, a pair of equal dividing rollers (30, 4
Depending on the size of the foreign matter supplied during 0), the stepwise buffering action of the first urging means (80) and the second urging means (90) can be obtained, and the roller It is possible to prevent breakage and damage to the drive motor (60). In addition, since the cushioning action of the rice equalizing device has two stages and the cushioning action of each stage is obtained by the separate urging means, the strength of the urging force can be easily selected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIG. 1, the rice equalizing device 1 basically includes a main body case 10 which is the main body of the device, and a hopper 20 attached to a rice supply port 11 formed in a top plate portion of the main body case 10. The main body case 10 includes a pair of rubber equal dividing rollers provided below the rice supply port 11, a blower 50 for sucking fine particles after equal division, a drive motor 60 and a belt 70. The pair of equally divided rollers includes a fixed roller 30 and a movable roller 40.

One of the fixed roller 30 and the movable roller 40 is made of a hard material such as iron or reinforced plastic to form an outer peripheral portion thereof, and the other roller is made of a soft material such as rubber or the like. Parts are formed.
The JIS hardness of the rubber forming the outer peripheral portion of the roller is 50 to
About 90 is suitable. The Applicant conducted experiments using rubbers having JIS hardnesses of 50, 70 and 90.
The rubber having an IS hardness of 50 has a low occurrence rate of small crushed particles, but tends to have a high occurrence rate of non-uniformly divided particles, that is, unregulated particles. Further, in the case of a rubber having a JIS hardness of 90, the occurrence rate of crushed particles may increase due to a minute change in the gap between both rollers. In the experiment, JIS
It was obtained that the rubber having a hardness of 70 was equally divided, that is, the rate of sizing was high, and conversely, the rate of crushed particles was low.

The fixed roller 30 is attached to the main body case 10 via a fixed arm 31 fixed to the main body case 10, and the movable roller 40 includes an arm member 41 which is swingable with respect to the main body case 10. It is attached to the main body case 10 through. The fixed roller 30 and the movable roller 40 are
The interval is set to allow the rice supplied between the hopper 20 and the rice supply port 11 to pass therethrough and to divide the rice equally. A belt 70 is wound around each of the drive pulleys of the blower 50, the drive motor 60, the fixed roller 30, and the movable roller 40. The drive motor 60 drives the fixed roller 30 and the movable roller 40 to rotate in opposite directions. Rice is introduced and passed through a gap between the fixed roller 30 and the movable roller 40. on the other hand,
The movable roller 40 moves the arm member 4 by the first urging means 80.
It is urged toward the fixed roller 30 side through 1, so that the rice introduced between the rollers can be equally divided.

Instead of rotating the fixed roller 30 and the movable roller 40 in opposite directions, the fixed roller 30 and the movable roller 40 may be rotated in the same direction and the belt 70 may be wound around them so that the peripheral speeds thereof are different from each other. The movable roller 40 is rotatably attached to an arm member 41, and the arm member 41 is rotatably supported by an attachment arm 42 fixed to the body case 10. The first biasing means 80 is attached to the arm member 41. The first urging means 80 basically has the arm member 41.
1 is interposed between the arm member 41 and the main body case 10 by a compression spring 81 for urging it to rotate counterclockwise.

As shown in FIGS. 1 and 2, the arm member 41
A compression spring 82 is provided for absorbing play in the pivotal support portion of the mounting arm 42 and the mounting portion of the arm member 41 and the movable roller 40. The drive motor 60 is
It is attached to the main body case 10 via a support base 61 which is a drive motor supporting means. One end of the support base 61 is rotatably supported by a shaft support member 62 with respect to the main body case 10, and the drive motor 60 attached to the support base 61 is rotatable about the shaft support member 62. Has become. An opening 64 is provided in the other end 63 of the support base 61, and a screw shaft 91 is loosely fitted in the opening 64, and the screw shaft 91 is fixed to the main body case 10 at one end. A nut 92 is screwed into the other end of the screw shaft 91 as a stopper, and the nut 92 and the other end 6 of the support base 61 are joined together.
A compression spring 93 is interposed between the three and the urging means 90.
The other end 63 of the support base 61 is biased to the left in FIG.

The strength of the compression spring 93 of the biasing means 90 is set stronger than the strength of the compression spring 81 of the biasing means 80. The body case 10 is provided with containers 12 and 13 for receiving the equally-divided rice under the pair of equal-division rollers. Further, adjacent to the body case 10, there is provided a collector 14 that collects fine particles generated at the time of equal division and blown out from the body case 10 through the blower 50.

Next, the operation will be described. The fixed roller 30
When a large foreign substance having a diameter slightly larger than the rice is mixed between the movable roller 40 and the movable roller 40, the compression spring 81 is compressed and the arm member 41 swings clockwise in FIG. By moving, the movable roller 40 is displaced in the direction in which the movable roller 40 is separated from the fixed roller 30, and it is possible to absorb the impact due to the large-diameter foreign matter. At this time, the drive support base 61 is supported by the biasing force of the compression spring 93, so that the drive motor 60 is not pulled by the belt 70, maintains its original position, and does not move.

The fixed roller 30 and the movable roller 40
When mixed with rice between them and excessively large foreign matter having a diameter significantly larger than that of rice is supplied, the movable roller 40 pulls the drive motor 60 via the belt 70, and the drive support base 61 causes the compression spring 93 to move. It moves against the urging force, the drive motor 60 moves, the belt 70 tends to slacken, and the movable roller 40 is largely displaced in the direction in which it separates from the fixed roller 30 to absorb the impact caused by an excessively large foreign substance. can do. That is, when the diameter of the foreign matter supplied between the fixed rollers 30 and 40 is large and the buffering action of the urging means 80 is insufficient, the movable roller 40 is repelled and the belt 70 pulls the drive motor 60. , The first urging means 80 and the second urging means 9 are moved according to the size of the foreign matter supplied between the pair of equal-dividing rollers.
It is possible to obtain a step-by-step buffering effect due to 0, and prevent damage to the roller and damage to the drive motor.

Further, since the cushioning action of the rice splitting device has two stages and the cushioning action at each stage is obtained by the separate biasing means, the strength of the biasing force can be easily selected. . As shown in Figure 3,
Sorted into flat rice and non-split rice in the flat shifter,
The split rice is shaped in the shaping rice, the residual pesticide on the surface is removed in the non-washing machine, and the separated starch particles are removed in the polishing machine.

Further, in the rotary shifter, the particles are separated into shaped particles and crushed particles, and in the color sorter, colored particles,
The discolored particles are removed, the mixed metal is removed in the metal checker, and the product passes through a check sieve and a weighing and packaging machine to become product white rice. Although the first and second urging means 80, 90 are provided in the above-described embodiment, before being loaded into the rice equalizing device, a coarse selecting machine, a stone removing machine, a magnetic separating machine, etc. If the foreign matters, stones, screws, nails, etc. are completely removed, such biasing means need not be provided.

[0021]

According to the rice equalizing device of the present invention, the rice is allowed to pass through the gap between the pair of equal dividing rollers without using a crusher, a rice grinder, or a polishing machine. To make the long grain rice half the size in the longitudinal direction, and to improve the yield without producing a lot of non-regulated rice with finer grains than the equally divided rice, or a lot of powdery rice. You can Also, when foreign matter having a diameter larger than that of rice is mixed in the rice and supplied between the pair of equal-dividing rollers, it resists the biasing force,
Since the movable roller is displaced in the direction away from the fixed roller, it is possible to absorb the impact of foreign matter,
It is possible to prevent an abnormal load from being applied to the drive system of the device. Further, since the two urging means are provided, the buffer can be absorbed in two stages corresponding to the diameter of the foreign matter supplied between the pair of equal-dividing rollers, which is more suitable for a wide range of foreign matter. A cushioning effect can be obtained, and the strength of, for example, a spring that constitutes each biasing means can be easily set.

[Brief description of drawings]

FIG. 1 is a front view of a rice splitting device showing an embodiment of the present invention.

FIG. 2 is a front view of the first urging means of the rice equalizer according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram of a white rice production line including a rice equal dividing device according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Device main body 20 ... Hopper 30 ... Fixed roller 40 ... Movable roller 41 ... Arm member 50 ... Blower 60 ... Drive motor 61 ... Support base (drive motor support means) 70 ... Belt 80 ... First biasing means 81 ... Compression spring 90 ... Second biasing means 93 ... Compression spring

Claims (3)

[Claims] Claim: What is claimed is: 1. A rice equalizing device in which long grain rice is equally divided in half in the longitudinal direction, and the rice is attached to the main body of the device so that their peripheral surfaces face each other, and the difference in peripheral speed between the two. According to the present invention, there is provided a pair of equal-division rollers which divides the rice that passes through the gap between the opposing peripheral surfaces into equal parts, and a rice equal-division device. 2. A rice equalizing device in which long grain rice is equally divided in half in the longitudinal direction, a fixed roller attached to the main body of the device through a fixed arm, and an arm member swingable to the main body of the device. And a movable roller that is attached via the difference between the peripheral speeds of the two rollers, and the rice that passes through the gap between the peripheral surface of the fixed roller and the peripheral surface of the movable roller is equally divided. The movable roller is urged toward the fixed roller through the pair of equal-divided rollers and the swingable arm member, and a large foreign substance having a diameter slightly larger than rice is caught between the fixed roller and the movable roller. When supplied,
A rice equalizing device, characterized in that the movable roller is displaced in a direction away from the fixed roller against an urging force of the movable roller so as to be able to absorb the impact of the large-diameter foreign matter. . 3. A rice equalizing device in which long grain rice is equally divided in half in the longitudinal direction, a fixed roller attached to the main body of the device through a fixed arm, and an arm member swingable to the main body of the device. And a movable roller that is attached via the difference between the peripheral speeds of the two rollers, and the rice that passes through the gap between the peripheral surface of the fixed roller and the peripheral surface of the movable roller is equally divided. A drive system having a pair of equally divided rollers and a drive motor, and having the fixed roller, the movable roller, and a belt wound around the drive motor, and the movable roller fixed roller via the swingable arm member. When a large foreign substance having a diameter slightly larger than rice is supplied between the fixed roller and the movable roller,
A first urging unit that displaces the movable roller in the direction away from the fixed roller against the urging force to absorb the impact of the large-diameter foreign matter, and the drive motor is attached to the apparatus body. Via the drive motor supporting means for urging the drive motor in a direction of tensioning the belt, and setting the urging force larger than the urging force of the first urging means. When an excessively large foreign substance having a significantly large diameter is supplied, the movable roller pulls the drive motor via the belt, the drive motor moves against the urging force, and the movable roller causes the fixed roller to move. Displaced significantly in the direction away from
A rice equalizing device comprising: a second urging means capable of absorbing a shock caused by the excessively large foreign matter.