JPS62136250A - Vertical recirculation type rice refining machine - 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] (Industrial Application Field) The present invention relates to a vertical circulation rice mill (prior art) A conventional circulation rice mill has a horizontal grain feeding spiral in a circulation tank. Installed horizontally, a bran removing cylinder is installed at the bottom of the horizontal grain feeding spiral, and a resistance valve is attached to the pressure chamber at the tip of the horizontal grain feeding spiral, allowing circulation as shown by the arrow to remove bran and perform circulation milling. (Refer to Japanese Patent Publication No. 36-1118).

(Problems to be Solved by the Invention) In the above-mentioned known method, the degree of circulation milling is controlled by adjusting the resistance of a resistance valve, but it is not very effective because there is no stirring in the pressure chamber at the tip of the horizontal grain feeding spiral. Ta.

(Means for Solving the Problem) Therefore, the present invention provides a vertically rotating milling roll 4 similar to the vertically rotating downward feeding grain feeding spiral 7 in the center of the circulation tank 5, and The outer periphery of the spiral 7 is surrounded by a grain feeding cylinder 14, and the outer periphery of the vertically rotating whitening roll 4 is surrounded by a bran removal cylinder 15 to form a shell chamber 9 and a rice polishing chamber 13, and the upper end of the grain feeding cylinder 14 is surrounded by The inlet that flows into the grain feeding room 9! 6
The outlet 1 from the rice polishing chamber 13 is placed at the lower end of the bran removing cylinder 15.
7, so that what flows out from the outflow port 17 ascends the circulation ascending path 32 and flows into the inflow port 16, and the outflow port 17 has an outflow amount that adjusts the outflow amount. This is a vertical circulation type rice milling machine equipped with a control valve 18.

(Example) A specific example of the present invention will be described with reference to the drawings.
is the motor case installed below.

It is designed to be placed on the floor. A motor 2 is installed inside the motor case l. motor 2
The rotating shaft 3 of the rice milling apparatus projects vertically upward, and a vertical rice polishing roll 4 is attached to the outer periphery of the rotating shaft 3. A circulation tank 5 formed of a thin iron plate and having a substantially rectangular cross section is integrally connected to the upper part of the motor case l. The uppermost end 6 of the rotating shaft 3 is located in the circulation tank 5 lower than the upper end of the circulation tank 5. A downward feeding spiral 7 is provided at the upper end of the rotating shaft 3. The downward feeding grain spiral 7 is inserted and attached to the rotating shaft 3 from above. Downward feeding grain spiral 7
The vertical axis rice milling roll 4 is provided below. A protrusion 8 is formed on the outer peripheral surface of the vertical axis rice polishing roll 4. The protrusion 8 may be inclined. A small diameter part 10 is formed at the bottom of the vertical axis rice milling roll 4, a large diameter part 11 is provided below the small diameter part 10, and a horizontal circular bottom plate 12 is provided below the large diameter part 11. The horizontal circular bottom plate l is fixed to the rotating shaft 3 and rotates together with the rotating shaft 3. A grain feeding chamber 9 is provided on the outer periphery of the downward feeding grain feeding spiral 7,
Rice polishing chambers 13 are formed on the outer peripheries of the vertical axis rice polishing rolls 4, respectively. The outer periphery of the downward feeding grain feeding spiral 7 is concentrically surrounded by a grain feeding cylinder 14, and the outer periphery of the vertical axis rice milling roll 4 is concentrically surrounded by a bran removing cylinder 15. 16 is an inlet formed on the outer periphery of the uppermost end 6 of the rotating shaft 3; 17 is an outlet formed on the outer periphery of the small diameter portion 10; an outflow control valve 18 is provided around the small diameter portion 10; An outflow port 17 is formed between the outer surface of the lO and the inner surface of the outflow control valve 18. The upper end 19 of the outflow control valve 18 is fitted into the outer peripheral surface of the lower end 20 of the bran removing cylinder 15 so as to be able to move up and down.

Therefore, the lower end of the bran removing cylinder 15 is formed on the outer peripheral surface of the same outer diameter from beginning to end, and the upper end 19 of the outflow amount regulating valve 18 is also formed on the inner surface of the same inner diameter throughout.

The central portion of the outflow control valve old is narrowed to have a small diameter, forming a narrowed portion 21, and the narrowed portion 21 faces the small diameter portion IO.

A tapered portion 22 whose diameter gradually decreases toward the bottom is formed between the vertical rice milling roll 4 and the small diameter portion 10, and the small diameter portion 10 is connected to the lower end of the tapered portion n. , when the outflow control valve 18 moves upward and the narrowed part 21 approaches the tapered part n, the outflow control valve 18 moves downward to narrow the outflow port 17 between them. When the space between the taper portion 22 and the taper portion 22 becomes wider, the outlet 17 becomes wider.

A connecting rod 23 protruding in the left-right direction is provided at the lower end of the outflow amount regulating valve 18, and the tip of a lever rod 24 is engaged with the outer end of the connecting rod 23. The intermediate position in the length direction of the lever 24 is the axis 2
6 to the circulation tank 5 side, and a weight δ is provided at the tip. In addition, 27 is a discharge gutter, and 2B is an on-off valve.

(effect) Next, we will discuss the effect.

Since the present invention has the above configuration, when the one weight 25 is moved toward the shaft 26, the weight of the weight 25 does not act on the connecting rod 23, so the outflow amount adjustment that is attached via the connecting rod 23 The valve 18 moves downward by its weight, widening the space between the narrowed part 21 and the Q2~part η. In this state, when brown rice is introduced from the upper part of the circulation tank 5 and the motor 2 is energized, the downward feeding grain spiral 7 and the vertical axis rice milling a-ru 4 rotate, allowing the grain to flow in from the inlet 16 and sending it downward. The rice is sent downward by the feeding action of the i-spiral 7 and flows into the rice polishing chamber 13. However, since the outflow control valve 18 at the bottom of the rice polishing chamber 13 is moved downward as described above to widen the outflow port 17, the rice polishing chamber 13
3 under low pressure, the low pressure rice grains are therefore stirred by the protrusions 8 of the vertical rice milling rolls 4, thus making low pressure milling possible. At this time, the generated isolates are ejected from the bran removal cylinder 15 into the bran chamber 29, sucked up by the suction fan 30, and made to flow into the bran box 31. The milled grains pass between the outlet ports 17, rise through the rising chambers 32 on the left and right sides, flow back into the inlet ports 16, and repeat this process a desired number of times to complete the milling process.

Since the outlet 17 is wide open, the grains can be fed downward by the downward feeding spiral 7.

The ejaculation will be performed without too much pressure, and as a result,
By performing low-pressure milling, it is possible to obtain high-quality rice with less broken rice.

Next, when the weight is positioned away from the shaft 26,
The outflow control valve is moved upward by the weight of the weight δ, so
The outlet 17 between the small diameter portion 10 and the narrowed portion 21 becomes narrower,
Therefore, when the grains are fed downward from the downward feeding spiral 7, they are milled under high pressure in the rice milling chamber 13, and in this way, the flow rate and pressure can be reliably adjusted only by adjusting the weight δ.

(Effects) Conventional circulation rice milling machines have a horizontal grain feeding spiral installed horizontally in a circulation tank, a bran removing cylinder is installed at the bottom of the horizontal grain feeding spiral, and a pressure chamber at the tip of the horizontal grain feeding spiral is installed. A resistance valve is installed to allow circulation to be performed while removing bran by circulating it in the direction of the arrow (see Japanese Patent Publication No. 36-1118). The room was kept under strong pressure, but since there was no stirring device in the room, it was not very effective.

However, the present invention has a vertically rotating milling roll 4 in the center of the circulation tank 5, as well as a vertically rotating downward feeding spiral 7.
The outer periphery of the downward feeding grain feeding spiral 7 is surrounded by a feeding shell tube 14, and the outer periphery of the vertically rotating whitening roll 4 is surrounded by a bran removing tube 15 to form a grain feeding chamber 9 and a rice polishing chamber 13, respectively. An inlet 1 that flows into the grain feeding chamber 9 at the upper end of the grain feeding cylinder 14
6 is formed with an outlet 17 from the rice polishing chamber 13 at the lower end of the rice bran removal cylinder 15, so that what flows out from the outlet 17 ascends the circulation ascending path V and flows into the inlet 16. In this apparatus, since the rice milling machine is a vertical circulation type rice milling machine in which the outflow port 17 is provided with an outflow rate adjustment valve 18 for adjusting the outflow rate, the rice polishing chamber 13 in which the amount of strong pressure and weak pressure is regulated is particularly important. Since the rice is stirred by the protrusions 8 of the vertical axis milling rolls 4, both high-pressure milling and low-pressure milling can be performed reliably.

[Brief explanation of drawings]

Figure 1 is a partially cutaway vertical front view of the present invention, Figure 2 is a vertical front view of the present invention, Figure 3 is a vertical side view when the outlet is narrowed, and Figure 4 is a widened outlet. FIG. Explanation of symbols l...Motor case, 2...Motor, 3...
Rotating shaft, 4... Vertical axis rice milling roll, 5... Circulation tank, 6... Top end, 7... Downward feeding grain feeding spiral, 8...
・Protrusion, 9...Grain feeding chamber, 10...Small diameter part, 11...
・Large diameter part, 12...Horizontal circular bottom plate, 13...Rice milling room, 14...Grain feeding tube, 15...Branch removing tube, 16...Inlet, 17...Outlet, 18...outflow control valve,
19... Upper end, Red... Lower end, 21... Narrowing part,
22...Taper part, n...Connection rod, 24...Lever lever, δ...Weight, π...Shaft, n...Discharge gutter, 2
8... Opening/closing valve, vessel... Rice bran chamber, 30... Suction fan, 31... Rice bran box, 32... Circulation ascending path.

Claims (1)

[Claims] A vertically rotating milling roll 4 similar to the vertically rotating downward feeding grain feeding spiral 7 is provided in the center of the circulation tank 5, and the outer periphery of the downward feeding grain feeding spiral 7 is connected to the vertically rotating grain feeding cylinder 14. The outer periphery of the whitening roll 4 is surrounded by a bran removing cylinder 15 to form a grain feeding chamber 9 and a rice polishing chamber 13, and an inlet 16 that flows into the grain feeding chamber 9 is connected to the upper end of the grain feeding cylinder 14. Cylinder 15
Outflow ports 17 from the rice milling chamber 13 are formed at the lower end of the rice milling chamber 13, so that what flows out from the outflow ports 17 flows into the circulation ascending path 3.
2 is raised to flow into an inlet 16, and the outlet 17 is provided with an outflow control valve 18 for adjusting the outflow amount.