JPH0258978B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a rice milling roll.

(Prior Art) A rice milling roll is conventionally known in which an upper roll is attached above the outer periphery of a vertical rotating cylinder, and a lower roll is attached below the upper roll.

(Problems to be Solved by the Invention) The above-mentioned known device is configured to mill the brown rice that has entered the milling room using an upper roll and a lower roll, but the conventional device is configured to mill rice that has the same diameter from beginning to end. Therefore, it was inefficient and the germ could not be removed.

(Means for Solving the Problem) The present invention improves this point, and provides a rice milling roll in which an upper roll is attached above the outer periphery of a vertical rotary cylinder, and a lower roll is attached below it. The upper roll 32 has a large diameter part 44 at the lower part and a tapered part 45 which gradually becomes smaller in diameter at the upper part, and the lower roll 37 has a large diameter part 48 at the lower part and a tapered part 47 which gradually becomes smaller in diameter at the upper part. This is what I did.

(Example) An example of the present invention will be described with reference to the drawings.
Reference numeral 3 denotes a polished cylinder made of a perforated plate with 18 holes, and in the embodiment, it is formed into an octagonal shape. The polishing tube 13 is formed by sequentially assembling four pieces, and the inner presser body 20 is brought into contact with the inside of the outer fixing frame 19 and fixed in advance with screws.The end of the polishing tube 13 is attached to the outer fixing frame 19.
The channel frame 22 is fitted into the joint of the inner presser body 20, the channel frame 22 is brought into contact with the outside of the outer fixing frame 19, and the channel frame 22 is tightened to the outside of the outer fixing frame 19 with the fixing bolts 23. The end portion is fixed to the inner presser body 20 of the polishing cylinder 13. Four outer fixing frames 19 are provided in the front, rear, left, and right, and an inner presser body 24 is brought into contact with the inner side between the outer fixing frames 19 and fixed from the outside with fixing bolts 25. 21 is a vertical protrusion provided on the inner presser body 20.

Therefore, by loosening the fixing bolt 23, the four polishing cylinders 13 can be replaced.

A center rotating tube 26 is provided at the center of the fixing bolt 23, and a ventilation port 27 is provided in the center rotating tube 26 to blow air in all directions. An annular gap 28 is formed on the outer periphery of the central rotating cylinder 26, and ventilation holes 31 are provided in the central rotating cylinder 26 to blow air in all directions. An outer rotary cylinder 29 is provided outside the annular gap 28. The outer rotary cylinder 29 is provided with vertical grooves 30 at predetermined intervals. Four vertical grooves 30 are formed, and a grinding roll, which is an upper roll 32, and an arcuate plate 33 are installed every other time between the vertical grooves 30. (In some cases, a cylindrical integral roll may be used.)

The upper roll 32 has a large-diameter portion 44 at the bottom and a tapered portion 45 that gradually becomes smaller in diameter at the top.
In the figure, it is divided into halves, but the whole part may be tapered.

A lower roll 3 is located at a lower position of the outer rotary cylinder 29.
Friction rolls 7 and arcuate plates 33 are provided every other time. The lower roll 37 has a lower portion with a large diameter portion 4.
8, the upper portion thereof is formed into a tapered portion 47 which gradually becomes smaller in diameter. In the figure, it is divided into halves, but the whole part may be tapered.

The side surface of the upper roll 32, the side surface of the arcuate plate 33, and the side surface of the lower roll 37 become larger as they approach the outer rotary tube 29, and are tapered. When the stopper 34 is fitted into the vertical groove 30 from the outside, its fitting part 35 fits into the longitudinal groove 30, and its tapered part 36 is connected to each of the upper roll 32, the arcuate plate 33, and the lower roll 37. Since it engages with the side surface, it can be fixed by fixing the stopper 34 to the outer rotary cylinder 29 with a screw.

The outer circumferential surface 38 of the stopper 34 and the outer circumferential surface 39 of the arc-shaped plate 33 are formed into the same circumferential surface. 49 is a stepped portion.

(effect) Next, we will discuss the effect.

When brown rice is introduced into the whitening chamber 42 and the whitening chamber 43 and the roll piece 17 is rotated, the upper rolls 32, 32
The outer circumferential surface 40, the inner presser plate 20, and the inner presser body 2
The rice polishing action works between the longitudinal protrusions 21 of 4 and the rice is ground and polished, but the upper roll 32 has its lower part connected to the large diameter part 4.
4, since the upper part is formed into a tapered part 45 whose diameter gradually becomes smaller, the rice bran is milled with changing density, and the generated bran is ejected to the outside through the milling tube 13 orifices 18.

When the white rice in the whitening room 42 and the whitening room 43 descends,
Friction is applied by the lower roll piece 37, but since there is a stepped portion 49, the grain rotates on its own axis, and the lower roll 37 has a large diameter portion 48 at the bottom and a tapered portion 47 where the diameter gradually becomes smaller at the top. Therefore, the germ is actively removed, efficiently stirred and rubbed into grains, and polished rice with beautiful skin is obtained.

(Effects) A conventional rice milling roll is known in which an upper roll is attached above the outer periphery of a vertical rotary cylinder, and a lower roll is attached below the upper roll.

The above-mentioned known method is configured to mill the brown rice that flows into the milling room using an upper roll and a lower roll, but the conventional method is inefficient and makes it difficult to remove the germ because the rice is milled with the same diameter from beginning to end. Nakatsuta.

The present invention has improved this point, and is a rice milling roll in which an upper roll is attached above the outer periphery of a vertical rotary cylinder, and a lower roll is attached below the outer periphery. 44, the upper part has a tapered part 45 that gradually becomes smaller in diameter, the lower roll 37 has a lower part formed in a larger diameter part 48, and the upper part has a tapered part 47 that gradually becomes smaller in diameter.
When rotated, a rice polishing action occurs between the outer peripheral surfaces 40 of the upper rolls 32, 32 and the vertical protrusions 21 of the inner presser 20 and the inner presser 24 to polish the rice, but the upper roll 32 greatly removes the lower part. Since the upper part of the diameter part 44 is formed into a tapered part 45 whose diameter gradually becomes smaller, the density changes in an orderly manner, and the rice bran is naturally refined, and the generated bran is ejected to the outside through the openings 18 of the polishing tube 13. When the polished rice between the milling chamber 42 and the milling chamber 43 descends, it is polished by friction by the lower rolls 37, but since there is a step 49, the grain rotates on its own axis, and the lower rolls 37 have their lower portions connected to the large diameter section 48. Since the upper part is formed with a tapered part 47 which gradually becomes smaller in diameter, the germ is actively removed and the rice is efficiently stirred and polished, which has the effect of producing polished rice with a beautiful skin surface. .

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part, FIG. 2 is a perspective view, and FIG. 3 is a cross-sectional plan view. Explanation of symbols, 13... Polishing tube, 17... Roll piece, 18... Eye, 19... Outer fixing frame, 20...
Inner presser body, 21... Vertical ridge, 22... Channel frame, 23... Fixing bolt, 24... Inner presser body, 25... Fixing bolt, 26... Center rotation cylinder,
27... Ventilation port, 28... Annular gap, 29... Outer rotating tube, 30... Vertical groove, 31... Ventilation port, 32
... Upper roll piece, 33 ... Arc-shaped plate, 34 ... Fastener, 35 ... Fitting part, 36 ... Tapered part, 3
7...Lower roll piece, 38...Outer peripheral surface, 39...
Outer peripheral surface, 40... Outer peripheral surface, 41... Ventilation port, 42
... Semen room, 43 ... Semen room, 44 ... Large diameter section,
45... Taper part, 47... Taper part, 48
...Large diameter part, 49...Step part.

Claims (1)

[Claims] 1. In a rice milling roll in which an upper roll is attached above the outer periphery of a vertical rotating cylinder and a lower roll is attached below it, the upper roll 32 has a large diameter section 44 at the lower part and a tapered section whose diameter gradually becomes smaller at the upper part. 45, the lower roll 37 has a lower portion connected to the large diameter portion 4.
8 and 8 are rice milling rolls each formed with a tapered portion 47 whose upper portion gradually becomes smaller in diameter.