JPS58216745A - Shaft type recirculation friction rice refiner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an improvement of a vertical circulation friction rice mill.

Rice milling machines for home use in rural areas are divided into two types: large rice milling factories concentrated in cities and small rice milling machines distributed in depopulated rural areas. There is an urgent need to rationalize this. Although it is not normal for rice producers to regularly use poor-quality, low-grade rice that is produced under poorer conditions than those used in urban life, two types of rice milling methods have been adopted in the past.
One type is a horizontal friction rice mill, in which brown rice passes through the same milling chamber once, completing the milling and turning it into white rice.This method removes almost all of the bran, and although it is inferior to urban rice milling, Although there is no big difference in quality, the other type is a horizontal circulation friction rice mill (see Figure 5), which has a rice tank placed in the 12th part of the milling room, and pushes rice from the milling room into this tank for circulation. During polishing, the reaction of pushing up is used as resistance in the polishing chamber, so it has traditionally been a fatal flaw that the bran removal polishing cannot avoid very incomplete defects. The polishing machine (see FIG. 6) also has the same defects as described above in its bran removal polishing.

The reason for choosing this rice milling machine with poor quality of polished rice is that even if the main parts of the milling chamber are worn out and the efficiency and other performance decreases, the process is a circulation system, so if you leave it until it becomes polished rice, it will eventually become polished. It's all about convenience. In addition, since the amount of rice milled is small, there is no need to worry or rush the rice milling process, and this model is evaluated on the premise that there are no constraints on rice milling time, so it is an effective rice milling method under such special circumstances. However, it is a big problem that the rice does not have any bran.Also, since it is circulated through a deformed tank, there is a tendency for circulation spots to occur.These defects can be removed to produce high-quality white rice. The gist of the present invention is to improve it so that it can be self-sufficient.

Therefore, a container, or tank, is constructed concentrically around a milling tube with a circulation lamp set upright, and rice is supplied from around the bottom of the milling tube near the bottom wall of the tank, and the rice is distributed evenly around the tank. Since the rice is discharged and circulated through the tank, uneven circulation can be prevented and uniformly polished rice can be processed. In addition, the rice bran generated in the milling room is absorbed and removed from the perforated wall of the milling barrel through the outer cylinder by the exhaust car at the bottom, and beautiful polished rice is processed by the rubbing force of the milling room where there is no residual bran. .

The reason why the conventional vertical circulation rice milling machine was not successfully put into practical use was that the rice bran removal was incomplete. In all of these cases, the rice grains inside the tank do not have bran removal walls, and the rice grains are allowed to flow down a wire mesh surface that is tilted over the tank, but unless the rice grains are specially stirred, they are simply pressed against the mesh and flowed down. However, this method ended in failure as it had no effect on removing the bran.

In the present invention, the porous wall for removing bran is separated from the rice grain layer of the tank by the outer mantle! By the stirring action of the polishing trochanter, the frictional force, and the centrifugal force that the rice grains receive from the trochanter, the bran is sucked out from the porous wall into the outer shell, thoroughly wiping away the adhering bran on the surface of the rice grains, resulting in high-quality polished rice. As the rice is processed, the rice bran discharged onto the mantle surface is discharged from the machine through the vertical bran removal pipe by suction, resulting in beautiful polished rice with no white spots, achieved through simple vertical circulation. is large.

In addition, generally, the bran removal pipe in the tank becomes a branch-like obstacle that prevents the uniform flow of rice grains, but in the present invention, it doubles as a connecting support between the rice grain supply port for milling and simple rice grains and the milling pipe, so it is sturdy and can be kept inside the tank. Another major effect of the present invention is that it not only does not interfere with the circulation of rice grains, but also directs and rectifies the inflow of rice grains as a supply port for the milling room, and can be simplified into a balanced and symmetrical structure. .

The present invention will be explained with reference to embodiment figures. A vertical shaft 4 on which a friction type milling trochanter 2 and a spiral feeding grain trochanter 3 are vertically mounted is erected at the center of the interior of an outer peripheral container 1 having a mouth-shaped cross section.
The shaft end of the vertical shaft 4 is connected to the main shaft of the electric motor Ia5 so as to rotate by C, and the outer periphery of the milling trochanter 2 is surrounded by a milling cylinder 6 whose bran removal section is a porous wall to form the milling chamber 7. A mantle 8 is provided on the outer periphery of the polishing cylinder 6 with a gap therebetween, and the inside of the mantle serves as a bran removal chamber 9. Bran removal pipe 10 formed by connecting with the technique part
... are connected to a case 12 of a blade wheel 11 mounted on the vertical shaft 4, and the upper surface of the case 12 forms the upper surface of a bottom wall 13 near the lower part of the grain feeding rotor 3, and the bottom wall The periphery of 13 is connected to and integrally formed with the outer peripheral container 1, and 14 is a polishing tube 6.
(See Fig. 4) The m-section screw shaft 40 and elastic spring 41 provided at the end of the horizontal support rod 39 protruding from the upper edge of the outer container 1 (see Fig. 4) It is formed to support the resistance lid 14 and to adjust its pressing force. 15 is a base housing an electric motor inside, 1
Reference numeral 6 indicates a rice grain inlet of the outer peripheral container 1, and reference numeral 17 indicates an outlet of a case containing an impeller.

Because of the above-mentioned configuration, when raw brown rice is fed into the outer peripheral container 1 and the device is started, the spiral feeding grain trochanter 3 and the milling trochanter 2
is rotated by a vertical shaft, and the brown rice in the container 6-1 flows into the milling chamber 6 from the lower end of the milling tube 6 and is subjected to a milling action, and the rice bran produced by the milling action is
The bran removing air flows into the bran removing chamber 9 due to the effect of the rotation of the impeller 11 in the case 12, and the bran removing air is discharged from the exhaust port 17 of the case 12 via the bran removing pipes 10 and the impeller 11. be excluded from the outside.

In addition, the polished rice in the polishing chamber 7 is removed from the container 1 through the gap with the resistor lid 171.
The polished rice flows through the circulation process several times to be milled to a predetermined degree of polishing, and then sent to the next process.

Claims No. (2) and 3(a) provide that a portion of the vertical shaft 4 opposing the polishing tube 6 is a hollow tube 18;
The upper part of the trochanter 2 is opened to create an air intake 19, and a hollow part 21 is opened around the hollow tube 18, and the hollow part 21 communicates with the ventilation hole 20 opened in the main part of the outer periphery of the polished trochanter 2. Ventilation hole 22・
. . , the fresh air flowing in from the air intake port 19 flows out from the ventilation hole 20 of the milling trochanter 2, and flows into the milling chamber 7.
The air is uniformly flowed out in the form of a jet over the entire length of the rice bran, and the rice bran powder produced during polishing is reliably discharged into the rice bran removal chamber 9 through the porous wall. This has the effect of ensuring quality polished rice.

Claim 3 provides that the bran removing tube 10 is connected to the bottom wall 13 and the supporting frame 23 of the polishing tube 6, which form the base of the rice polishing machine.
Since the rice grain supply port 25 for the milled v7 is formed by the connecting column 24, a portion of the milling tube 6 and the mantle 8 can be stably fixed together by the connecting branch 24. This has the effect of smoothing out the flow of the rice grains, the bran removal air, and the rice grains, and preventing the vibration of the device as much as possible.

In addition, Fig. 3 shows a known example of a horizontal circulation l'fA friction rice polishing machine L.
The rice grains in the tank 26 flow into the milling chamber 29 from the inflow path 28 by rotation of the wheel 27 and are polished, and the generated rice bran falls from the porous wall 30 into the rice bran removal chamber 31. The polished rice is returned to the tank 26 from the outlet passage 32, and is circulated several times to be milled to a predetermined degree of polishing.

Figure 4 shows a known example of a vertical circulation friction rice milling machine with three grain tanks.
The rice grains in 3 flow into the vertical milling chamber 35 by the rotation of the vertical spiral rotor 34 and are milled, and the polished rice flowing out from the milling chamber 35 flows down the inclined porous wall 37 of the bran removal chamber 36 and is polished. The rice falls into a tank while the bran powder is removed, and is circulated several times within the device to be milled to a predetermined level of polishing. This is the rice bran collection tank in the 38G rice bran chamber.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. Fig. 1 is a side sectional view of the present device d, Fig. 2 is a sectional view of main parts of another embodiment, Fig. 3 is a plan sectional view of the outer container taken along line A-A, and Fig. 4 is a perspective view of the resistance lid. 5 and 6 are side sectional views of known examples. 1... Outer periphery container 2... Refining trochanter 3... Spiral feeding grain trochanter 4... Vertical shaft 5... Electric motor
6... Refining barrel 7... Refining chamber 8... Mantle 9... Bran removing chamber 10... Bran removing tube 11... @
Width 12...Case 13...Bottom wall
14... Resistance lid 15)... Base 16.
...Rice grain inlet 9-17...Exhaust port 18...Hollow pipe 19...
Air intake port 20...Ventilation port 21...Hollow part
22... Ventilation hole 23... Support frame 24.
...Connection strut 25...Rice grain supply port 26...Tank 27...a-rule 28...Inflow path 29...
・Refining room 30... Porous wall 31... Bran removal room
32...Outflow channel 33...Grain tank 34
...Vertical spiral trochanter 35... Semen chamber 36...
・Blank removal chamber 37... Inclined porous wall 38... Bran collection tank 3
9...Horizontal support rod 40...Adjustment screw shaft 41...
・Elastic spring patent applicant 10 - Figure 1 Figure 3 Figure 5 Figure 6 Procedure number - 1E (spontaneous) July 21, 1981 Kazuo Wakasugi, Commissioner of the Japan Patent Office 1, Representative of the case 1932 Patent Application No. 1010.23 Tategatajifunkanma 1j Tsuseimaiki 2, Title of invention Vertical Shape Circulation
Ring friction rice milling machine 3, Relationship with the ministry case for amendment Patent applicant 4, Daily amendment order (voluntary amendment) 5, Target of amendment Drawing 6, Contents of amendment Drawings 1, 2, and Figure 4 as attached 1
t-dru.

Claims (1)

[Claims] (1) A friction type milling trochanter and a spiral feeding grain trochanter are installed on the vertical shaft.
A milling chamber is formed by surrounding the outer periphery of the milling trochanter with a milling tube whose bran removing portion has a porous wall, and a mantle is provided on the outer periphery of the milling tube with a gap therebetween, and the mantle is A bran removing pipe formed by connecting a lower branch part of the milling tube with a lower branch part of the polishing tube is connected to a case of a blade wheel mounted on the vertical shaft,
The upper part of the case is formed with an upper surface of a bottom wall near the lower part of the grain feeding trochanter, and the periphery of the bottom wall is connected to and integrated with the outer peripheral container of the milling room. Circulating friction rice milling machine. (2) The part of the vertical shaft facing the polishing cylinder is made into a hollow tube, the upper part of the vertical shaft is opened to serve as an air intake port, and the ventilation hole is opened in the main part of the outer periphery of the polishing trochanter. The vertical circulation friction rice milling machine according to claim (1), wherein a hollow portion communicating with the hollow tube communicates with a ventilation hole opened around the hollow tube. (3), the bran removal tube is used as a connecting branch between the bottom wall forming the base of the rice milling machine and the support frame of the polishing cylinder, and the connecting support forms the rice grain supply port of the polishing chamber. Friction rice milling machine.