JPH05177147A - Rice polishing device - Google Patents

Abstract

PURPOSE:To enable easy replacement of a bran removal cylinder by locating a rice grinding/polishing chamber at a higher elevation than a rice friction/ polishing chamber and encircling the outer periphery of the bran removal cylinder with a freely closable frame, an intermediate wall and an outer wall. CONSTITUTION:A rice grinding/polishing chamber 44 is formed at a higher position than a rice friction/polishing chamber 18, so that the easy replacement of a bran removal cylinder 17 in the rice friction/polishing chamber 18 is ensured. In addition, the surroundings of a friction-type grain polishing roll 15 are enveloped with the bran removal cylinder 17, and the outer periphery of the bran removal cylinder 17 is held down by a freely closable frame 21. The outerior of the freely closable frame 21. is surrounded by an almost concentric, freely detachable and closable intermediate wall 27, and an outer wall 30 corresponding to an area where the intermediate wall 27 is located is freely detachable. The rice grain which is initially polished in the rice grinding/polishing chamber 44, is finish-polished in the rice friction/polishing chamber 18. As the rice grinding/polishing chamber 44 is formed concentrically with the rice friction/ polishing chamber, no bucket conveyor is required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice polishing apparatus.

[0002]

2. Description of the Related Art Conventionally, a downflow type friction milling chamber formed around a friction-type grain milling roll fixed to a vertically-rotating main shaft and fixed to the outer circumference of a rotary cylinder concentrically provided on the outer periphery of the vertically-rotating main shaft. The same application is made up of an ascending-type grinding rice-polishing room formed around the above-mentioned grinding-type grain-polishing roll. It has been filed by a person as Japanese Patent Application No. 2-214721. The prior invention has a grinding rice polishing chamber and a friction rice polishing chamber, but since both chambers are formed in a coaxial concentric circle, a bucket conveyor or the like that moves between the chambers is unnecessary, and the cost is reduced. be able to.

[0003]

According to the above-mentioned prior application, although the bran removal cylinder of the friction rice-polishing chamber was heavily worn, it was not easy to replace it because the outer grinding rice-polishing chamber interfered with it.

[0004]

Therefore, according to the present invention, a downflow type friction milling chamber 18 formed around a friction type grain milling roll 15 fixed to a vertically rotating main shaft 10 and an outer periphery of the vertically rotating main shaft 10 are provided. And a rising-type grinding rice-polishing chamber 44 formed around a grinding-type grain-polishing roll 38 fixed to the outer periphery of a rotary cylinder 36 concentrically provided in the portion, and the rice grains initially milled in the grinding-rice polishing chamber 44 In the rice-polishing apparatus for guiding the rice to the friction-polishing chamber 18 for finishing rice, the grinding-milling chamber 44 is formed at a position higher than the friction-polishing chamber 18,
No. 8 rice bran removal device, which facilitates replacement of the bran removal cylinder 17, and
In the above, the area around the friction-type fine grain roll 15 is covered
7, the outer periphery of the bran removal cylinder 17 is pressed by a freely openable / closable frame 21, and the outer side of the freely openable / closable frame 21 is surrounded by a substantially concentric openable / detachable intermediate wall 27. Reference numeral 30 denotes a rice polishing device which is detachably configured.

[0005]

EXAMPLES The structure of the present invention will be described with reference to one example. 1 is a case installed on the floor, and 2 is a case 1.
The case 1 is formed by a thin iron plate into a vertically long rectangular box.

A horizontal partition 3 is provided at a lower position in the case 1, and a lower transmission chamber 4 is formed under the horizontal partition 3. A vertical through hole 5 is formed in the center of the horizontal partition base 3, and a vertical fixed cylinder 6 is placed in the upper center of the through hole 5 of the horizontal partition base 3, and the vertical fixed cylinder 6 is attached to the horizontal partition base 3. Secure with screws 7.

At the upper end of the vertically fixed cylinder 6, a brim-shaped support base 8 is formed. A hollow vertical rotation main shaft 10 is mounted in the vertical fixed cylinder 6 via a bearing 9. Reference numeral 11 is a blow chamber formed between the vertical rotation main shaft 10 and the vertical fixed cylinder 6, 12 is a blow cylinder attached to the outer periphery of the vertical fixed cylinder 6, and 13 is a blow hole formed in the vertical rotary main shaft 10.

The lower end of the vertically rotating main shaft 10 passes through the through hole 5 and projects below the horizontal partition 3 to reach the inside of the lower transmission chamber 4, and the lower passive pulley 14 is fixed to the lower end. The upper end of the vertically rotating main shaft 10 projects upward from the support base 8, and the friction-type fine grain roll 15 is fitted and attached from above, and the lower feed grain spiral 16 is fitted and attached above it.

The periphery of the friction-type grain milling roll 15 is surrounded by a polygonal bran removal cylinder 17, and a friction-polishing chamber 18 is formed between the friction-type grain milling roll 15 and the debranching barrel 17. The friction milling chamber 18 is formed between an upper partition frame 19 and a lower partition frame 20. The bran removal cylinder 17 is pressed from the outside by the openable frame 21 after mounting. The openable / closable frame 21 is composed of two sets of left and right, one end of the left free frame 22 and the right free frame 23 is axially attached by the vertical axis 24 and the vertical axis 25, respectively, and the other end of the left free frame 22 and the right free frame 23. Is fastened with a fixing bolt 26, and when the bran removal cylinder 17 is replaced, the openable / closable frame 21 is opened left and right for replacement.

Reference numeral 27 denotes an intermediate wall which surrounds the outer side of the openable / closable frame 21 in a substantially concentric manner. The inner side of the intermediate wall 27 serves as a suction chamber 28, which is connected to a blower provided at an arbitrary position. Middle wall 27
Since it is an obstacle during the replacement work of the bran removal cylinder 17, it has an openable and closable structure. The outer wall 30 of the portion of the case 1 where the friction-polishing chamber 18 is located is made detachable by fitting the lower part and then tightening the upper part with screws 31.

The vertically rotating main shaft 10 projects upward from a through hole 32 provided in the upper partition frame 19 and is fed downwardly there.
6 is attached, and the grain feeding cylinder 33 is provided around the downward feeding grain feeding spiral 16.
Fit and secure with screws.

The grain transfer barrel 33 has a shorter height than the lower feed grain transfer spiral 16, and an annular funnel 34 is fitted to the upper portion of the grain transfer barrel 33 and opens toward the upper end. A rotary cylinder 36 is attached to the outer circumference of the grain transfer cylinder 33 via a bearing 35, an upper passive pulley 37 is attached to the lower circumference of the rotary cylinder 36, and a grinding type rice polishing roll 38 is fitted to the upper circumference of the upper end of the rotary cylinder 36. To combine. The grinding type rice polishing roll 38 has an annular structure with a small vertical width as shown in the figure, and its upper edge 39 has a lower feeding grain feeding spiral 16
It is slightly higher than the upper edge 40, and the lower edge 41 is around the upper and lower intermediate positions of the lower feed grain spiral 16.

An upper edge 40 of the grinding type rice polishing roll 38 is formed as a slanted portion 42, and an outer periphery of the grinding type rice polishing roll 38 is surrounded by a bran removing cylinder 43. A space between the grinding type rice polishing roll 38 and the bran removing cylinder 43 constitutes a grinding rice polishing chamber 44. An inflow port 45 is formed in one corner of the lower part of the bran removing cylinder 43, and a forced supply cylinder 46 is provided outside the inflow port 45. The forced supply cylinder 46 is a vertical cylinder, and the vertical axis 48 is axially mounted on the bottom wall 47, and the lower feed spiral blade 49 is attached to the outer periphery of the vertical axis 48. Downward feed spiral wing 4
9 is provided up to the vicinity of the upper part of the inflow port 45, and a pressing blade 50 is attached to a position facing the inflow port 45. Reference numeral 51 denotes a boss of the pushing blade 50, which has a mountain shape. Vertical axis 48
The upper end of the lower feed spiral blade 49 is a free end.

On the inner surface of the bran removing cylinder 43, a lower edge 52 thereof is provided.
There is a spiral 54 reaching from the upper edge 53 to the spiral 5
4 is a multi-strand spiral, and in the embodiment, nine spirals are provided at equal intervals. The rice bran cylinder 43 and the grinding type rice polishing roll 3
8 and the upper part of the downward feeding grain spiral 16 can be opened and closed by a lid 55.
The lid 55 can be opened and closed by a hinge mechanism 56 at one end. The lid 55 has a regular circular shape in a plan view, and a round hole 57 is formed in the center thereof, which is substantially the same as the grain feeding tube 33, and a rotary plate 58 is fitted into the round hole 57. On the inner surface of the lid 55, about six radial guide plates 59 extending from the periphery to the center are attached. The guide plate 59 has a radial shape as a whole, and a bent portion 60 bent like a key is formed in the vicinity of the round hole 57 at the inner end, and the grain that has flowed in from the inflow port 45 and moved up in the grinding and polishing chamber 44 is called the guide plate 59. It is supplied to the annular funnel 34 through a connecting path 61 between the guide plates 59.

A resistance plate 63 is provided in the middle of the connecting path 61, which is axially attached to the vertical axis 62 and closes the connecting path 61. An arm 64 projecting from the resistance plate 63 is provided with a protrusion 65 provided on the rotary plate 58. When the resistance plate 63 feels a load and opens, the arm 64 pushes the protrusion 65 to rotate the rotary plate 58 by the load.

Reference numeral 66 is a spring that gives resistance to the rotation thereof, and is connected to a motor 67 to adjust the strength. An annular outlet 68 is formed in the lower portion of the friction-type fine grain roll 15, and an opening / closing valve 69 that moves up and down to open and close is provided in the outlet 68. Reference numeral 70 is a support arm, 71 is a spring, and 72 is a motor. A flow rate control valve 73 is provided above the forced supply cylinder 46. 74 is a motor for opening and closing the flow control valve 73,
75 is a remaining rice blowing port, 76 is a main motor, 77 is a sub motor,
78 is a bolt.

[0017]

When the lower passive pulley 14 is rotated by the main motor 76, the friction type grain milling roll 15 and the downward feeding grain feeding spiral 16 are provided.
When the upper passive pulley 37 is rotated by the sub motor 76, the grinding type rice polishing roll 38 is rotated.

In this state, when the vertical axis 48 is rotated to rotate the lower feed spiral blade 49, the brown rice in the forced supply cylinder 46 is lowered by the lower feed spiral blade 49 and fed into the inflow port 45 by the pushing blade 50. And the rice polishing chamber 44 is ground from the inlet 45.
Flows in. The brown rice that has flowed into the grinding rice polishing chamber 44 through the inflow port 45 is forcibly fed by the downward feed spiral blades 49, and the lower edge 5 is formed on the inner surface of the bran removing cylinder 43.
Since about 9 multi-threaded helices 54 extending from 2 to the upper edge 53 are formed, the inside of the grinding and polishing chamber 44 is raised to be initially milled. This initial polishing is performed smoothly because the vertical width of the grinding-type rice polishing roll 38 is small, and it rises and the guide plate 5
It is stored in the connecting path 61 between the guide plate 59 and the guide plate 59. Grains stored in the connecting path 61 gradually increase in pressure and press the resistance plate 63 to open, gradually flow into the grain feeding cylinder 33, and are fed downward by the downward feeding grain feeding spiral 16 to friction-polished rice. The rice is milled in the chamber 18.

During the above-mentioned work, the bran removal cylinder 17 is worn out in a short time and must be replaced. However, the bran removal cylinder 17 of the present invention has a space between the upper partition frame 19 and the lower partition frame 20. It is attached and is pressed from the outside by an openable / closable frame 21 after mounting. The openable / closable frame 21 is composed of two sets of left and right, and one end of the left free frame 22 and the right free frame 23 has a vertical axis 24.
And the vertical axis 25, respectively. The other ends of the left and right free frames 22 and 23 are tightened with fixing bolts 26, and the intermediate wall 27 that surrounds the outer side of the openable and closable frame 21 in a substantially concentric manner is also openable and closable. Then, when the fixing bolt 29 is loosened, it is disassembled to the left and right, and the outer wall 30 of the portion of the case 1 where the friction-polishing chamber 18 is located.
Also, since the lower part is fitted and the upper part is tightened with the screw 31, the bran removing cylinder 17 can be easily replaced.

[0020]

The prior application of the same applicant for the present application is that the flow-down type friction milling chamber formed around the friction type grain milling roll fixed to the vertical rotation main shaft and the concentric shape on the outer periphery of the vertical rotation main shaft. It consists of an ascending-type grinding rice-polishing room formed around the grinding-type grain-polishing roll fixed to the outer periphery of the rotary cylinder provided in the above, and guides the rice grains initially milled in the grinding rice-polishing room to the friction-polishing room. This is a rice milling device for finishing and polishing rice, and the grinding and friction milling chambers are formed in a coaxial concentric circle, and since a bucket conveyor or the like that moves between the chambers is unnecessary, the cost can be reduced. Although there is a feature, in the prior application, although the bran removal cylinder of the friction rice-polishing chamber was heavily worn, the outer grinding rice-polishing chamber was in the way, and it was not easy to replace it. However, according to the present invention, the flow-down type friction milling chamber 18 formed around the friction-type grain milling roll 15 fixed to the vertical rotation main shaft 10 and the rotary cylinder concentrically provided on the outer peripheral portion of the vertical rotation main shaft 10 are provided. And a rising-type grinding rice-polishing chamber 44 formed around a grinding-type grain-polishing roll 38 fixed to the outer periphery of 36. The rice grains initially milled in the grinding-rice polishing chamber 44 are guided to the friction-polishing chamber 18. In the rice milling apparatus for finishing and polishing rice, the grinding rice milling chamber 44 is a rice milling device formed at a higher position than the friction milling chamber 18, and in the above, the periphery of the friction-type grain milling roll 15 is debranched. It is surrounded by a tube 17, the outer periphery of the bran removal tube 17 is pressed by an openable frame 21, and the outer side of the openable frame 21 is surrounded by a substantially concentric openable and detachable intermediate wall 27. Outer wall 30
Is a rice polishing device with removable structure,
Since the grinding rice polishing chamber 44 is located higher than the friction rice polishing chamber 18, the bran removal cylinder 17 can be easily replaced, and the outer wall 30 presses the outer periphery of the bran removal cylinder 17 with the openable frame 21.
Since the outer side of the openable / closable frame 21 is surrounded by a substantially concentric open / close removable intermediate wall 27, and the outer wall 30 at a portion where the intermediate wall 27 is provided is removable, a simple configuration is possible in combination with the above configuration. The bran removal cylinder 17 can be easily replaced.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall vertical sectional side view.

FIG. 3 is a partially cutaway plan view.

FIG. 4 is a partially enlarged vertical side view.

FIG. 5 is a cross-sectional plan view of a friction milling room.

FIG. 6 is a perspective view of a bran removing cylinder.

FIG. 7 is a perspective view of a connecting path.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Bone frame, 3 ... Horizontal partition, 4 ... Lower transmission chamber, 5 ... Through hole, 6 ... Vertical fixed cylinder, 7 ... Screw, 8 ... Collar-shaped support stand, 9 ... Bearing, 10 ... Vertical rotation spindle, 11 ... Blowing chamber, 1
2 ... Blow pipe, 13 ... Blow hole, 14 ... Lower passive pulley, 1
5 ... Friction type fine grain roll, 16 ... Downward feed grain spiral, 17
… Bran removing cylinder, 18… Rubber milling room, 19… Upper parting frame, 20
… Lower partition frame, 21… Openable frame, 22… Left frame, 2
3 ... Right frame, 24 ... Vertical axis, 25 ... Vertical axis, 26 ... Fixing bolt, 27 ... Intermediate wall, 28 ... Suction chamber, 29 ... Fixing bolt, 30 ... Outer wall, 31 ... Screw, 32 ... Through hole, 33 ... Grain transfer cylinder, 34 ... Annular funnel, 35 ... Bearing, 36 ... Rotating cylinder, 37 ... Upper passive pulley, 38 ... Grinding type rice polishing roll,
39 ... upper edge, 40 ... upper edge, 41 ... lower edge, 42 ... inclined part,
43 ... Bran removing cylinder, 44 ... Grinding rice polishing room, 45 ... Inflow port, 46
... Forced supply cylinder, 47 ... Bottom wall, 48 ... Vertical axis, 49 ... Lower feed spiral blade, 50 ... Pushing blade, 51 ... Boss, 52 ... Lower edge,
53 ... Upper edge, 54 ... Multiple helix, 55 ... Lid, 56 ... Hinge mechanism, 57 ... Round hole, 58 ... Rotating plate, 59 ... Guide plate, 60
... Bent portion, 61 ... Connecting path, 62 ... Vertical axis, 63 ... Resistor plate,
64 ... Arm, 65 ... Protrusion, 66 ... Spring, 67 ... Motor, 68 ... Outflow port, 69 ... Open / close valve, 70 ... Support arm,
71 ... Spring, 72 ... Motor, 73 ... Flow control valve, 74 ...
Motor, 75 ... remaining rice blowing port, 76 ... Main motor, 77 ... Sub motor, 78 ... Attachment / detachment bolt.

[Procedure amendment]

[Submission date] March 3, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

The upper edge 39 of the grinding type rice polishing roll 38 is formed as a slanted portion 42, and the outer periphery of the grinding type rice polishing roll 38 is surrounded by a bran removing cylinder 43. A space between the grinding type rice polishing roll 38 and the bran removing cylinder 43 constitutes a grinding rice polishing chamber 44. An inflow port 45 is formed in one corner of the lower part of the bran removing cylinder 43, and a forced supply cylinder 46 is provided outside the inflow port 45. The forced supply cylinder 46 is a vertical cylinder, and the vertical axis 48 is axially mounted on the bottom wall 47, and the lower feed spiral blade 49 is attached to the outer periphery of the vertical axis 48. Downward feed spiral wing 4
9 is provided up to the vicinity of the upper part of the inflow port 45, and a pressing blade 50 is attached to a position facing the inflow port 45. Reference numeral 51 denotes a boss of the pushing blade 50, which has a mountain shape. Vertical axis 48
The upper end of the lower feed spiral blade 49 is a free end.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (2)

[Claims] 1. A flow-down type friction milling chamber 18 formed around a friction type grain milling roll 15 fixed to a vertical rotation main shaft 10, and a rotary cylinder 36 concentrically provided on the outer peripheral portion of the vertical rotation main shaft 10.
And an ascending-type grinding rice-polishing chamber 44 formed around the grinding-type grain-polishing roll 38 fixed to the outer periphery of
In the rice milling apparatus for guiding and finishing the rice, the grinding milling chamber 44 is formed at a position higher than the friction milling chamber 18 to facilitate replacement of the bran removal cylinder 17 of the friction milling chamber 18. 2. The friction-type refined grain roll 1 according to claim 1.
5 is surrounded by a bran removal pipe 17, the outer periphery of the bran removal pipe 17 is pressed by an openable frame 21, and the outer side of the openable frame 21 is surrounded by a substantially concentric openable and detachable intermediate wall 27. A part of the outer wall 30 where the wall 27 is located is a rice polishing device that is detachably configured.