JPH08200B2 - Vertical type rice milling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention supplies brown rice from the lower part of a whitening chamber to whiten it,
Vertical axis type rice milling machine that discharges polished rice from the upper part.

[Conventional technology]

A conventional vertical axis rice milling machine will be described with reference to FIGS. 6 and 7.

Reference numeral 53 is a vertical axis type rice milling machine, in which a spiral rotor 56 and a whitening trochanter 57 are axially mounted on a main shaft 55 rotatably provided in an upright standing porous wall bran-removing whitening cylinder 54, and a polishing chamber 58 The lower part is connected to the brown rice supplying section 59, and the upper part is connected to the refined product discharging section 60. Reference numeral 61 is a resistance plate that presses against the refined product discharging portion 60, reference numeral 62 is an elastic force adjusting plate of a spring 63 that presses the resistance plate 61, and the refined product discharging portion 60 is connected to a discharge port 65 via a discharge gutter 64. I am in touch. As shown in FIG. 7, the stirring protrusion 66 of the white trochanter 57 is
To form a strip.

The brown rice supplied to the brown rice supply unit 59 is supplied to the whitening chamber 58 by the spiral rotator 56 and is refined while being sent to the whitening chamber 58. The polished rice is discharged from the refined product discharge part 60 while resisting the resistance plate 61, flows down the discharge gutter 64, and is discharged from the discharge port 65 to the outside of the machine.

However, in the conventional vertical type rice milling machine as described above, the side from which the distance from the shaft center is smaller than the stirring protrusion of the friction milling trochanter formed eccentrically as shown in FIG. 7 (r ₂ <
A spout 67 is formed at r ₁ ). Then, since the frictional grain trochanter rotates counterclockwise in the direction of the arrow in Fig. 7, at the point A in the grain mill, the polishing pressure becomes large and the grains become dense, and at the point B, the polishing pressure becomes large. When it becomes small, the grain becomes sparse. Therefore, there is a problem that the grain at the point B is fed up and discharged along the stirring protrusion in a state where the polishing is insufficient, and uneven mashing occurs.

[Problems to be solved]

An object of the present invention is to solve the above problems and to provide a vertical type rice milling machine capable of adjusting the pressure balance in the grain refining chamber and preventing the occurrence of uneven roaring.

[Means for solving problems]

A part of the cylindrical body erected on the box machine frame is used as a porous wall descaling polishing cylinder, a spiral trochanter is provided on a vertical shaft rotatably provided in the cylindrical body, and a white trochanter is provided on the upper part of the spiral trochanter. The lower part of the whitening chamber mainly composed of the porous wall debranching whitening barrel and the whitening trochanter is connected to the brown rice supplying part and the upper part is connected to the white rice discharging part. Then, a screw conveyor shaft of an upper conveying device is concentrically connected to the upper part of the milling trochanter to form a vertical axis rice milling machine. The cross-sectional shape of the outer peripheral surface of the fine trochanter has a plurality of maximum diameter portions, and is formed such that the radius of the maximum diameter portion on the rear side in the rotation direction gradually decreases in the process of reaching the next maximum diameter portion.

[Work]

The rice grains supplied to the spiral trochanter from the brown rice supply unit of the vertical axis rice mill are pumped by the spiral trochanter and refined in the whitening chamber mainly composed of the porous wall-removing rice bran and the white trochanter. .
The polished rice is discharged from the white rice discharging section while the resistance plate suppresses the outflow, and is further fed up by the screw conveyor and discharged outside the machine. At that time, since the pressure in the vicinity of the stirring protrusions in the polishing chamber is adjusted, the unsintered rice grains are not fed along the stirring protrusions.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a vertical type rice milling machine according to the present invention, FIG.
The figure is a front cross-sectional view of the friction whitening trochanter, and FIGS. 3 to 5 are views showing the upper conveying device.

Reference numeral 1 is a vertical shaft type rice milling machine, in which a spiral rotator 4 is provided at the bottom of a hollow main shaft 3 rotatably provided in an upright standing porous wall bran mill 2 and a stirring projection 5 is provided at the top. Rubbing white trochanter 6
Each is mounted. A brown rice supply port 8 is provided at the lower part of a whitening chamber 7 which mainly includes a porous wall debranching whitening tube 2 and a friction whitening trochanter 6.
Then, the upper part is connected to the white rice discharge port 9, respectively.

Also, friction milling rotor 6 as shown in FIG. 2 has a stirring projection 5A~B of Article 3, the maximum diameter r ₁ ~r ₃ of the stirring projections A~B the following maximum diameter It is formed so as to gradually decrease in the process from r _{1 to} r ₃ .

Reference numeral 10 is a brown rice tank, and a bottom plate 11 under the tank is connected to the supply port 8 via a supply gutter 12. Motor mount
The pulley 47 of the motor 14 placed on 13 and the pulley 15 of the main shaft 3 are connected to the V belt 48. Pulley 16 and blower
A pulley (not shown) of 17 is connected by a V-belt 18, and a bran discharge port 19 of the blower 17 is connected to a cyclone 21 via a bran discharge pipe 20. Reference numeral 22 is an intake port, reference numeral 23 is a blowout port, and the bran removing chamber 24 communicates with the blower 17 via a bran removing duct (not shown).

Reference numeral 25 is an upper conveying device, and the lower end of the hollow screw conveyor shaft 27 around which the spiral body 26 is wound is attached to the friction whitening roller 6
It is fitted to the upper end of the
Fit the upper end of 27 into bearing 29. Rod 30 connected to conveyor shaft 27
Is slidably fitted, and the lower part of the connecting rod 30 is connected by a connecting pin 30 to a resistance device 49 provided at the white rice discharge port 9. The resistance device 49 is composed of a resistance plate 32 and a cylindrical body 51 around which the spiral body 50 is wound, reference numeral 33 is an elongated hole-shaped void provided in the conveyor shaft 27, and reference numeral 34 is a buffer spring. The upper end of the connecting rod 30 is connected to the compression degree adjusting device 35. The upper end of the connecting rod 30 is fitted to the bearing 36, and the bearing 36 is adjusted by the support rod 37 and the adjusting rod 38.
Reference numeral 39 is an adjusting handle attached to the tip of the adjusting rod 38.

A scraping blade 40 is provided on the upper end of the conveyor shaft 27, and the discharge gutter 42 is connected to the refined product discharge port 41 of the upper transport device 25. Discharge gutter
42 is rotatably formed by the forward / reverse motor 43
Reference numeral 44 communicates with the supply gutter 12 through the return gutter 45, and reference numeral 46 is a window for confirming the accuracy of the rice grain.

Next, the operation of the above configuration will be described. When the motor 14 is driven, the brown rice in the brown rice tank 10 flows down the bottom plate 11 and is sent from the supply gutter 12 to the spiral rotator 4 through the supply port 8. The brown rice is pumped to the whitening chamber 7 by the spiral trochanter 4 and subjected to the polishing action generated by the rotation of the frictional whitening trochanter 6 to be refined. At that time, as shown in FIG.
Since the maximum diameter portions r _{1 to} r _{3 of} C are formed so as to gradually decrease in the process of reaching the next maximum diameter portions r _{1 to} r ₃ , for example, the stirring protrusion A
The pressure conditions at points A and B are balanced (the same applies to the stirring protrusions B and C). Therefore, the rice grains at the point B do not become sparse, and the unsintered rice grains are not sent up along the stirring protrusions A to C and discharged outside the machine. Then, it is sucked from the intake port 22 by the blower 17,
The bran removing effect is performed by the bran-blasting air blown from the blast port 23. Dust such as bran generated by the polishing action in the polishing chamber 7 is discharged from the through hole of the porous wall removing bran polishing cylinder 2 to the removing bran chamber 24, and the blower 17 and the bran discharge port 19 from a removing bran duct (not shown). ,
It is sent to the cyclone 21 through the waste bran pipe 20 and collected.

The polished rice reaches the white rice discharge port 9 and flows out against the resistance plate 32 while the resistance plate 32 suppresses the outflow.
Then, the white rice is fed upward in the upper conveying device 25 by the spiral body 26 of the conveyor shaft 27, and the white rice reaching the upper end is promoted to be discharged by the scraping blade 40, and is discharged from the discharge gutter 42 via the refined product discharge port 41. It is discharged to the outside of the machine.

Immediately after the start of polishing, incompletely polished rice is discharged from the discharge gutter 42.
Invert to the position of the chain line to circulate the unpolished rice. In other words, the unpolished rice drops from the refined product discharge port 41 to the rice collecting trough 44, is sent from the supply gutter 12 to the brown rice supply port 8 via the return gutter 45, and is re-polished. Then, after confirming that the proper lapping accuracy has been reached after a certain period of time through the window 46 and the forward / reverse rotation motor 43 is operated to reverse the discharge gutter 42 to the position of the solid line, the white rice is discharged into the discharge gutter.
It is discharged from 42 to the outside of the aircraft.

Next, the operation of adjusting the accuracy of the hammer will be described. Pressure adjustment device
When the handle 39 of 35 is pushed down, the connecting rod 30 is pushed down via the bearing 36, and the resistance plate 32 is pushed down via the tubular body 51 accordingly. Then, the pressure in the milling chamber 7 increases and the grinding accuracy is improved, and the polished rice having an appropriate grinding accuracy is transferred by the spiral body 50 of the resistance device 49, and further further by the spiral body 26 of the screw conveyor shaft 27. It At this time, the spiral body 50 wound around the cylindrical body 51 of the resistance device 49 promotes the upward feeding action and prevents the staying.

In addition, if the amount of brown rice decreases as the polishing work proceeds, unpolished rice will be discharged and unpolished rice will be discharged to the outside of the machine. Therefore, the sensor 52 provided on the bottom plate 11 detects the decrease of brown rice, and the signal from the sensor 52 causes the forward / reverse rotation motor 43.
Is activated and the drain gutter 42 is inverted to the position indicated by the chain line. Then, the unpolished rice is returned to the brown rice brown rice supply port 8 through the return gutter 45 and re-polished. Then, the rice grains that have been circulated until the proper lapping accuracy is automatically operated by a timer or the like, and the forward / reverse rotation motor 43 is manually operated by confirming the lapping accuracy through the window 46, and the drain gutter 43 is shown in a solid line. It is discharged to the outside by turning it over to the position.

〔The invention's effect〕

According to the vertical axis rice mill in the present invention, the screw conveyor shaft of the upper conveyor is concentrically connected to the upper part of the white trochanter, and the cross-sectional shape of the body outer peripheral surface of the white trochanter has a plurality of maximum diameter parts. Since the radius of the maximum diameter part on the rear side in the direction of rotation gradually decreases in the process of reaching the next maximum diameter part, the white rice discharge port of the rice mill can be placed at a high position for taking out large white rice. Since the container can be used and the pressure in the brewing room is balanced, unpolished rice grains are not sent up along the stirring protrusions and discharged outside the machine, and it is possible to completely prevent uneven mashing. .

[Brief description of drawings]

FIG. 1 is a side sectional view of a vertical type rice milling machine according to the present invention, FIG. 2 is a front sectional view of a friction milling trochanter, and FIGS. FIG. 7 and FIG. 7 are diagrams showing a conventional example. 1 …… Vertical type rice milling machine 2 …… Perforated wall removal bran polishing tube 3 ……
Spindle 4 ... Helical trochanter, 5 ... Stirring protrusion, 6 ... Friction whitening trochanter, 7 ... Whitening chamber, 8 ... Brown rice supply port, 9 ... White rice discharge port, 10 ... Brown rice tank, 11 …… Bottom plate, 12 …… Supply gutter, 13 …… Motor mount, 14 …… Motor, 15 …… Pulley, 16 …… Pulley, 17 …… Blower, 18 …… V belt, 19 …… Bran outlet , 20 …… Bran tube, 21 …… Cyclone, 22 …… Intake port, 23 …… Blowhole, 24 …… Branning chamber, 25…
… Upper conveyor, 26 …… Spiral, 27 …… Screw conveyor shaft, 28 …… Coupling pin, 29 …… Bearing, 30 …… Coupling rod,
31 …… Coupling pin, 32 …… Resistance plate, 33 …… Gap, 34 …… Spring, 35 …… Pressure adjusting device, 36 …… Bearing, 37 …… Supporting rod, 38 …… Adjusting rod, 39 …… Steering wheel, 40 …… Scraping blade, 41 …… Refining product outlet, 42 …… Exhaust gutter, 43 …… Forward / reverse motor, 44 …… Gathering gutter, 45 …… Return gutter, 46 …… Window, 47…
… Pulley, 48 …… V-belt, 49 …… Resistance device, 50 …… Spiral, 51 …… Cylinder, 52 …… Sensor, 53 …… Vertical type rice milling machine, 54 …… Perforated wall removal bran polishing white tube, 55 …… spindle, 56 …… spiral trochanter, 57 …… whitening trochanter, 58 …… whitening chamber, 59 …… brown rice feeding section, 60 …… refined product discharging section, 61 …… resistor plate, 62 …… elastic pressure Adjusting plate, 63 …… Spring, 64 …… Exhaust gutter, 65 …… Exhaust port, 66 …… Stirring projection, 67 …… Blowout port.

Claims (1)

[Claims] 1. A spiral trochanter on a vertical shaft rotatably provided in the cylindrical body and a spiral trochanter on an upper part of the spiral rotator, wherein a part of a cylindrical body erected on a box machine frame is used as a porous wall debranching whitening cylinder. The bottom of the milling chamber, which has the polishing trochanter as the main part, and the porous wall debranching polishing barrel and the polishing trochanter as the main parts, is connected to the brown rice supply part, and the upper part is connected to the white rice discharging part. In the vertical type rice milling machine in which the screw conveyor shafts of the upper conveying device are concentrically connected, the cross-sectional shape of the body outer peripheral surface of the whitening trochanter has a plurality of maximum diameter parts, and the radius of the maximum diameter part on the rear side in the rotation direction. The vertical rice milling machine is characterized in that it is formed so as to gradually decrease in the process of reaching the next maximum diameter part.