JPH05184956A - Rice milling apparatus - Google Patents

Abstract

PURPOSE:To hasten the rotation of a grinding type grain cleaning roll and to well perform rice milling by arranging a plurality of guide plates guiding grain, which rises through a grinding rice milling chamber to be ready to stagnate in the outer peripheral part thereof by centrifugal force and collides with the guide plates, to a downward grain feed chamber in the communication chamber of both chambers. CONSTITUTION:In a rice milling apparatus, the friction type grain cleaning roll 15 fixed to a vertical rotary main shaft 10 is surrounded by a bran removing cylinder 17 to form a flow down type friction rice milling chamber 18. A downward grain feed screw 16 is surrounded by a grain feed cylinder 33 to form a downward grain feed chamber 79. The grinding type grain cleaning roll 38 fixed to the outer periphery of a rotary clinder 36 is surrounded by a bran removing cylinder 43 to form a rising type grinding rice milling chamber 44. The grinding rice milling chamber 44 and the downward grain feed chamber 79 are allowed to communicate with each other by a communication chamber 80. In this constitution, a plurality of guide plates 59 are radially arranged in the communication chamber 80. The grain rising through the grinding rice milling chamber 44 to be ready to stagnate in the outer peripheral part thereof by centrifugal force is allowed to collide with the guide plates 59 to be guided to the downward grain feed chamber 79.

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 by concentrically surrounding a friction-type grain milling roll fixed to a vertical rotation spindle with a bran removal cylinder and the friction-type polishing of the vertical rotation spindle. A lower feed grain feeding chamber formed by concentrically surrounding a lower feed grain feeding spiral fixed on the upper part of the grain roll, and an outer periphery of a rotary cylinder provided on the outer peripheral portion of the grain feeding barrel. Was formed by concentrically surrounding a grinding-type grain milling roll fixed to the rising milling rice-polishing chamber and formed above the grinding-rice milling chamber and the lower feeding and grain-feeding chamber. A rice-polishing device including a communication chamber from the grinding rice-polishing chamber to the lower feed and grain-feeding chamber has been filed by the same applicant as Japanese Patent Application No. 2-214721. The prior invention has a grinding rice polishing chamber and a friction rice polishing chamber,
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 can be reduced.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the above-mentioned prior application, when the grain refined in the grinding rice polishing chamber rises in the polishing rice polishing chamber, the rotation of the grinding type grain polishing roll is fast, so that it is accumulated in the outer peripheral portion by centrifugal force. However, there was a problem in that it was not guided to the lower feeding and grain feeding room formed in the central part inside the grinding and rice milling room. Therefore, the present invention utilizes the movement of the grain that is about to stay and is scraped out and guided to the central grain transfer chamber. In addition, the resistance device in the grinding and milling room was devised.

[0004]

According to the present invention, therefore, the flow-down friction milled rice is formed by concentrically surrounding the friction-type grain milling roll 15 fixed to the longitudinally rotating main shaft 10 by a bran removing cylinder 17. The chamber 18 and the friction-type fine grain roll 1 of the vertically rotating spindle 10.
The lower feeding and feeding chamber 79 formed by concentrically surrounding the lower feeding and feeding spiral 16 fixed to the upper part of the No. 5 with the feeding barrel 33.
And a rising type milled rice formed by concentrically surrounding a grinding grain milling roll 38 fixed to the outer periphery of a rotary cylinder 36 provided on the outer periphery of the grain feeding barrel 33 with a bran removing barrel 43. Chamber 44,
From the grinding rice polishing chamber 44 formed above the grinding rice polishing chamber 44 and the lower feeding grain feeding chamber 79 to the lower feeding grain feeding chamber 7
In the rice polishing apparatus comprising the communication chamber 80 up to 9, the communication chamber 80 has a grain that rises in the grinding rice polishing chamber 44 and tends to stay in the outer peripheral portion due to centrifugal force and collides with the lower portion of the central portion. A plurality of guide plates 5 that can be guided into the feeding and feeding chamber 79
A rice milling device in which 9 are radially arranged, and an inner end of the guide plate 59 is bent inward by about 90 degrees to form a bent portion 60, and the bent portion 60 is located at an upper position of the lower feeding and feeding chamber 79. And a connecting path 61 extending from the grinding rice polishing room 44 to the lower feeding and feeding room 79 is formed between the adjacent rice-polishing device and the guide plate 59.
In 1 there is a resistance plate 6 for opening and closing the communication path 61 according to the load.
This is a rice polishing device provided with 3.

[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. The inner lower surface of the lid 55 serves as a communication chamber 80 extending from the grinding and polishing chamber 44 to the lower feed and grain feeding chamber 79, and about six radial guide plates 59 extending from the periphery to the center are attached to the communication chamber 80. The guide plate 59 has a radial shape as a whole, and the outer end thereof is located in the vicinity of the bran removing cylinder 43 or the bran removing cylinder 43 and acts to scrape out the grains that are going to stay at the outer end by centrifugal force. In the vicinity of the hole 57, a bent portion 60 that bends like a key is formed, and the grain that has flowed in from the inflow port 45 and has risen in the grinding rice polishing chamber 44 passes through the connecting path 61 between the guide plate 59 and the guide plate 59 and is an annular funnel. 34 to be supplied.

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. The amount of brown rice that the initial brewing process has been soaking is one minute or two minutes and rises,
Since the rotation of the grinding type rice polishing roll 38 is fast, it is retained outside due to centrifugal force and is not easily guided into the central grain transfer chamber 79. However, in the present invention, since there is the radial guide plate 59, the guide plate 59 is used. The guide plate 59 and the guide plate 59 are scraped out.
It is stored in the communication path 61 between. Grains stored in the connecting passage 61 gradually increase in pressure and press the resistance plate 63 provided in the connecting passage 61 to open, and then gradually drop at the bent portion 60 to flow into the grain feeding cylinder 33 and feed downward. The grain is fed downward by the grain-feeding spiral 16 to be milled in the friction-polishing 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]

EFFECTS OF THE INVENTION In the invention of the same applicant as the earlier filed invention, when the grain refined in the grinding rice polishing chamber rises in the grinding rice polishing chamber, the rotation of the grinding type grain polishing roll is fast. However, there was a problem in that it was not retained in the lower feed grain feeding chamber formed in the center portion inside the grinding and rice polishing chamber. However, the present invention is directed to the longitudinal rotation spindle 10.
The friction-type grain milling chamber 18 formed by concentrically surrounding the friction-type grain milling roll 15 fixed to the inside by a bran removal cylinder 17, and the friction-type grain milling roll 15 of the vertically rotating main shaft 10. Of the lower feeding grain feeding chamber 79 formed by concentrically surrounding the lower feeding grain feeding spiral 16 fixed on the upper part of the grain feeding barrel 33, and the rotary barrel 36 provided on the outer peripheral portion of the grain feeding barrel 33. Ascending-type grinding rice chamber 44, which is formed by concentrically surrounding the grinding-type grain milling roll 38 fixed to the outer periphery with a bran removing cylinder 43, the grinding rice-graining chamber 44, and the lower feed grain feeding chamber 79. In the rice milling apparatus, which comprises a communication chamber 80 that is formed above the ground rice polishing chamber 44 and extends to the lower feeding and feeding chamber 79, the communication chamber 80
In the inside, a plurality of guide plates 59 that can rise the grinding rice polishing chamber 44 and collide with the centrifugal force by the centrifugal force to stay in the outer peripheral portion and guide the grains into the lower feeding and feeding chamber 79 in the central portion are radially formed. Since the rice milling apparatus is arranged in the above, the grinding type grain mill roll 38 can be rotated quickly to satisfactorily mill the rice, and the grains that are to be retained by centrifugal force can be smoothly scraped by the plurality of guide plates 59. It can be guided into the central lower feeding chamber 79. In addition, the inner end of the guide plate 59 is bent inward by approximately 90 degrees so that the bent portion 6 is bent.
Since the bending portion 60 is a rice milling device facing the upper position of the lower feeding and feeding chamber 79 so as to overlap, the bending portion 60 can drop to the center of the lower feeding and feeding chamber 79.
In addition, the grinding and polishing chamber 4 is provided between the adjacent guide plates 59.
4 from the lower feed grain feeding chamber 79 to form a connecting path 61, and the connecting path 61 is provided with a resistance plate 63 that opens and closes the connecting path 61 according to the load, so that the rice polishing apparatus is provided. The resistance mechanism can be easily designed.

[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, 79 ... Grain feeding room, 80 ... Communication chamber.

[Procedure amendment]

[Submission date] February 9, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Rice polishing apparatus

[Claims]

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 by concentrically surrounding a friction-type grain milling roll fixed to a vertical rotation spindle with a bran removal cylinder and the friction-type polishing of the vertical rotation spindle. A lower feed grain feeding chamber formed by concentrically surrounding a lower feed grain feeding spiral fixed on the upper part of the grain roll, and an outer periphery of a rotary cylinder provided on the outer peripheral portion of the grain feeding barrel. Was formed by concentrically surrounding a grinding-type grain milling roll fixed to the rising milling rice-polishing chamber and formed above the grinding-rice milling chamber and the lower feeding and grain-feeding chamber. A rice-polishing device including a communication chamber from the grinding rice-polishing chamber to the lower feed and grain-feeding chamber has been filed by the same applicant as Japanese Patent Application No. 2-214721. The prior invention has a grinding rice polishing chamber and a friction rice polishing chamber,
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 can be reduced.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the above-mentioned prior application, when the grain refined in the grinding rice polishing chamber rises in the polishing rice polishing chamber, the rotation of the grinding type grain polishing roll is fast, so that it is accumulated in the outer peripheral portion by centrifugal force. However, there was a problem in that it was not guided to the lower feeding and grain feeding room formed in the central part inside the grinding and rice milling room. Therefore, the present invention utilizes the movement of the grain that is about to stay and is scraped out and guided to the central grain transfer chamber. In addition, the resistance device in the grinding and milling room was devised.

[0004]

Therefore, according to the present invention, the roll 15 and the roll 15 are removed by concentrically surrounding the friction type grain milling roll 15 fixed to the longitudinally rotating main shaft 10 with a bran removing cylinder 17. Bran
The flow-down type friction milling chamber 18 formed between the cylinder 17 and the lower feeding grain feeding spiral 16 fixed to the upper portion of the friction type grain rolling roll 15 of the vertically rotating main shaft 10 is surrounded by a grain feeding barrel 33. A lower feeding and feeding chamber 79 that is concentrically surrounded and formed between the grain feeding spiral 16 and the grain feeding barrel 33, and an outer circumference of a rotary barrel 36 provided on an outer peripheral portion of the grain feeding barrel 33. Grinding type fine grain fixed to
The surrounding concentrically around the Le 38 in bran removing cylinder 43 b -
Of the rising type rice milling chamber 44 formed between the roll 38 and the bran removing cylinder 43, the grinding rice milling chamber 44 and the lower feed grain feeding chamber 7
In a rice milling apparatus comprising a grinding chamber 44 formed above 9 and a communication chamber 80 leading to the lower feeding and feeding chamber 79, the grinding chamber 44 is raised in the communication chamber 80 and centrifuged. A rice polishing apparatus in which a plurality of guide plates 59 are arranged radially so that the grains that are likely to stay in the outer peripheral portion due to force collide with each other to guide them into the lower feed grain feeding chamber 79 in the central portion, and the guide plate. The inner end of 59 is bent inward by approximately 90 degrees to form a bent portion 60, and the bent portion 60 is used for the lower feeding and feeding chamber 7
9, a rice polishing device facing the upper position of 9 so as to overlap, and the grinding rice polishing chamber 44 between the adjacent guide plates 59.
To the lower feeding and feeding chamber 79, and a resistance plate 63 for opening and closing the communication path 61 according to a load is provided in the communication path 61 to provide a rice polishing apparatus.

[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. The inner lower surface of the lid 55 serves as a communication chamber 80 extending from the grinding and polishing chamber 44 to the lower feed and grain feeding chamber 79, and about six radial guide plates 59 extending from the periphery to the center are attached to the communication chamber 80. The guide plate 59 has a radial shape as a whole, and the outer end thereof is located in the vicinity of the bran removing cylinder 43 or the bran removing cylinder 43 and acts to scrape out the grains that are going to stay at the outer end by centrifugal force. In the vicinity of the hole 57, a bent portion 60 that bends like a key is formed, and the grain that has flowed in from the inflow port 45 and has risen in the grinding rice polishing chamber 44 passes through the connecting path 61 between the guide plate 59 and the guide plate 59 and is an annular funnel. 34 to be supplied.

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. The amount of brown rice that the initial brewing process has been soaking is one minute or two minutes and rises,
Since the rotation of the grinding type rice polishing roll 38 is fast, it is retained outside due to centrifugal force and is not easily guided into the central grain transfer chamber 79. However, in the present invention, since there is the radial guide plate 59, the guide plate 59 is used. The guide plate 59 and the guide plate 59 are scraped out.
It is stored in the communication path 61 between. Grains stored in the connecting passage 61 gradually increase in pressure and press the resistance plate 63 provided in the connecting passage 61 to open, and then gradually drop at the bent portion 60 to flow into the grain feeding cylinder 33 and feed downward. The grain is fed downward by the grain-feeding spiral 16 to be milled in the friction-polishing 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]

EFFECTS OF THE INVENTION In the invention of the same applicant as the earlier filed invention, when the grain refined in the grinding rice polishing chamber rises in the grinding rice polishing chamber, the rotation of the grinding type grain polishing roll is fast. However, there was a problem in that it was not retained in the lower feed grain feeding chamber formed in the center portion inside the grinding and rice polishing chamber. However, the present invention is directed to the longitudinal rotation spindle 10.
Of the roll 15 and the bran remover 17 by concentrically surrounding the friction-type fine grain roll 15 fixed to
The flow-down type friction milling chamber 18 formed in between and the lower feed grain feeding spiral 16 fixed to the upper portion of the friction type grain milling roll 15 of the vertically rotating main shaft 10 are concentrically surrounded by a grain feeding barrel 33. Then, a lower feed grain feeding chamber 79 formed between the grain feeding spiral 16 and the grain feeding barrel 33, and a grinding-type fine grain mill fixed to the outer periphery of a rotary barrel 36 provided on the outer peripheral portion of the grain transport barrel 33. - the surrounding concentrically around the Le 38 in bran removing cylinder 43 b - le 38 as before
Ascending-type grinding rice polishing chamber 44 formed between the rice bran removal cylinders 43
In the rice milling device comprising the grinding rice polishing chamber 44 and the communication chamber 80 formed above the lower feeding and grain feeding chamber 79 to the lower feeding and grain feeding chamber 79,
In the communication chamber 80, a plurality of guides that can move the grinding and rice polishing chamber 44 upwards and collide with the grains that are going to stay in the outer peripheral portion by centrifugal force and can guide the grains into the lower feed grain feeding chamber 79 in the central portion. Since the rice milling device is constructed by arranging the plates 59 in a radial pattern, the grinding type grain rolling roll 38 can be rotated faster to achieve good rice milling.
Grains to be retained by centrifugal force can be smoothly scraped by the plurality of guide plates 59 and guided into the central lower feeding and feeding chamber 79. Further, the inner end of the guide plate 59 is bent inward by about 90 degrees to form a bent portion 60, and the bent portion 60 is a rice milling device facing the upper position of the lower feeding and grain feeding chamber 79 so as to overlap. From the above, the bent portion 60 can be dropped to the center of the downward feeding grain feeding chamber 79. In addition, a communication path 61 from the grinding rice polishing chamber 44 to the lower feeding and feeding room 79 is formed between the adjacent guide plates 59, and the communication path 61 is opened and closed in the communication path 61 according to a load. Since the rice polishing apparatus is provided with the resistance plate 63, the resistance mechanism can be easily designed.

[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 Codes] 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, 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, 79 ... Grain feeding room, 80 ... Communication chamber.

Claims (3)

[Claims] 1. A flow-down type friction milling chamber 18 formed by concentrically surrounding a friction-type grain milling roll 15 fixed to a vertical rotation spindle 10 with a bran removing cylinder 17, and the vertical rotation spindle 10. The lower feed grain feeding chamber 79 formed by concentrically surrounding the lower feed grain feeding spiral 16 fixed to the upper portion of the friction type grain milling roll 15 with the grain feeding barrel 33, and the grain feeding barrel 33. An ascending-type grinding rice polishing chamber 44 formed by concentrically surrounding a grinding-type milled grain roll 38 fixed to the outer circumference of a rotary cylinder 36 provided on the outer peripheral portion with a bran removing cylinder 43, and the grinding rice-polishing chamber 44 and a communication chamber 80, which is formed above the lower feed grain feeding chamber 79 and extends from the grinding rice polishing chamber 44 to the lower feed grain feeding chamber 79, in the communication chamber 80, the grinding Grains that are going up in the rice polishing chamber 44 and try to stay in the outer periphery due to centrifugal force collide and A rice polishing apparatus in which a plurality of guide plates 59 that can be guided into the lower feeding and feeding chamber 79 are radially arranged. 2. The inner end of the guide plate 59 according to claim 1, is bent inward by about 90 degrees to form a bent portion 60, and the bent portion 60 is overlapped with an upper position of the lower feeding and feeding chamber 79. Rice milling equipment facing. 3. The connecting passage 61 from the grinding rice polishing chamber 44 to the lower feed and grain feeding chamber 79 is formed between the adjacent guide plates 59 according to claim 1, and a load is provided in the connecting passage 61. A rice polishing apparatus provided with a resistance plate 63 for opening and closing the communication path 61 accordingly.