JPH0738951B2 - Vertical type rice milling machine - Google Patents

Description

The present invention relates to a vertical axis rice milling machine that supplies brown rice from the lower part of a whitening chamber to whiten it and discharges it from the upper part.

[Conventional technology]

 A conventional vertical axis rice milling machine will be described with reference to FIG.

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. Further, the discharge gutter 65 provided with the opening / closing plate 66 and the return port 67 are connected to the return cylinder 68.
To contact.

The brown rice supplied to the brown rice supply unit 59 is supplied to the whitening chamber 58 by the spiral trochanter 56, and in the whitening chamber 58, the rice is polished and debraned while being fed. 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. Further, since unpolished rice is generated at the start and end of polishing, the opening / closing plate 66 is raised to return the unpolished rice to the return port 67 via the reduction tube 68.
Supply to and re-energize.

However, in the conventional vertical axis rice milling machine as described above,
Since only rice polishing can be performed, it is necessary to install a humidifying and polishing machine separately for finishing high value-added glossy rice (non-washed rice), which is a problem that the size of the device increases and the cost increases significantly. was there.

[Problems to be solved by the invention]

The present invention solves the above problems, the discharge port of the white rice is provided at a high position to increase the size of the container for taking out white rice,
It is an object of the present invention to provide a vertical type rice milling machine capable of finishing beautiful glossy rice by providing a water adding device having a simple structure.

[Means for solving problems]

In order to achieve this object, the present invention has the following configuration.

A part of the standing cylindrical body is used as a porous wall removing bran polishing cylinder, and a spiral trochanter and a white trochanter above the spiral trochanter are axially inserted into a vertical shaft rotatably provided in the cylindrical body to form a porous wall. The lower part of the whitening chamber, which mainly consists of the bran removal whitening cylinder and the whitening trochanter, is connected to the brown rice supply part, and the upper part is connected to the white rice discharging part. Then, the hollow screw conveyor shaft of the upper conveying device is concentrically connected to the upper part of the white trochanter, the connecting rod is slidably fitted in the screw conveyor shaft, and the lower part of the connecting rod is the white rice discharging part. An upper part of the provided resistance device is connected to a compression degree adjusting device for adjusting the resistance pressure, and an adding device for adding water to the polished rice fed in the upper conveying device is provided.

[Action]

The brown rice supplied to the spiral trochanter from the brown rice supply section of the vertical axis rice mill is pumped by the spiral trochanter and refined in a polishing room mainly composed of a porous wall-removing rice bran and a 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. Then, by adjusting the pressing degree adjusting device, the connecting rod slides up and down in the screw conveyor shaft, and accordingly, the resistance device moves up and down to adjust the precision of polishing the polished rice. Further, when the white rice discharged from the white rice discharging unit is fed up by the screw conveyor shaft, the surface of the white rice is wet softened by the addition of water by the water adding device. The thinned layer of softened white rice is peeled off during the feeding by the screw conveyor shaft, and the rice is ground by the friction and polishing action of the white rice.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. First
FIG. 1 is a side sectional view of a vertical type rice milling machine embodying the present invention, FIG. 2 is a diagram showing an upper conveying device, FIGS. 3 and 4 are partially enlarged views thereof, and FIG. 5 is another embodiment. It is the figure which showed.

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 spindle 3 rotatably provided in an upright standing porous wall bran-removing white tube 2 and a stirring projection 5 is provided at the top. The frictional white trochanters 6 are respectively mounted. The lower part of the whitening chamber 7 which mainly comprises the porous wall debranching whitening barrel 2 and the frictional whitening trochanter 6 is used as a brown rice supply port 8.
The upper part is connected to the white rice discharge port 9, respectively.

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 stand 13
The pulley 47 of the motor 14 and the pulley 15 of the main shaft 3 mounted on the V belt are connected to the V belt 48. Pulley 16 and blower 17
The pulley (not shown) is connected with the V belt 18,
The bran outlet 19 of the blower 17 is connected to a cyclone 21 through a bran discharge pipe 20.
Have been contacted. Reference numeral 22 is an intake port, reference numeral 23 is a blowhole, and the bran removing chamber 24 is a blower through a bran removing duct (not shown).
I have contacted 17.

Reference numeral 25 denotes an upper conveyor, which fits the lower end of a hollow screw conveyor shaft 27, around which the spiral 26 is wound, with the upper end of the friction polishing trochanter 6 and connects it with a connecting pin 28.
Fit the upper end of the bearing 29 to the bearing 29. A connecting rod 30 is slidably fitted to the conveyor shaft 27, and the lower portion of the connecting rod 30 is connected to a resistance device 49 provided at the white rice discharge port 9 by a connecting pin 31. Resistance device
49 is composed of a resistance plate 32 and a cylindrical body 51 formed by winding a spiral body 50,
Further, reference numeral 33 is an elongated hole-shaped void provided in the conveyor shaft 27. 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, the bearing 36 is connected to the adjusting rod 38 via the supporting rod 37, and the reference numeral 39 is the adjusting rod.
It is an adjustment handle attached to the tip of 38.

Reference numeral 69 is a water addition device, which is the upper feeding path of the upper conveyance device 25.
The injection nozzle 71 faces the 70, the water supply pipe 72 of the injection nozzle 71 is used as a water tank (not shown), and the air supply pipe 73 is provided with an air compressor (not shown).
Contact each one.

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,
Is in contact with the supply gutter 12 through the return gutter 45, and the reference numeral 46 is a window for confirming the accuracy of the rice grain. Further, reference numeral 74 is a perforated wall plate provided at the refined product discharge port 41, and the perforated wall plate 74 is a bran removal passage.
It is in contact with the bran chamber 24 through 75.

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. Then, the bran is sucked from the intake port 22 by the blower 17 and blown out from the jet port 23 to remove bran. Dust such as bran generated by the polishing action in the polishing chamber 7 is discharged to the bran chamber 24 through the through hole of the multi-walled bran removal unit 2 for porous wall, and the blower 17 and the bran outlet 1 from the bran duct (not shown).
9, It is sent to the cyclone 21 through the bran discharge 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 pumped up the upper feeding path 70 by the spiral 26 of the conveyor shaft 27, and the white rice reaching the upper end is promoted to be discharged by the scraping blades 40, and is discharged from the discharge trough 42 via the refined product discharge port 41. It is discharged to the outside.

When the white rice is pumped through the upper feeding path 70, it is humidified by the water adding device 69. The water supplied from the water tank (not shown) via the water supply pipe 72 becomes mist-like wet air from the injection nozzle 71 together with the compressed air supplied from the air compressor (not shown) via the air supply pipe 73. Is ejected. Due to the fog and wet air, the surface of the white rice is moistened and softened by the addition of water. The thinned layer of softened white rice is peeled off while being fed by the spiral body 26 of the conveyor shaft 27, and is ground by the friction-polishing action of the white rice. Then, the polished rice is debranched when it is sent from the refined product discharge port 41 to the discharge gutter 42.
That is, dust such as bran mixed in the white rice is sent from the through hole of the perforated wall plate 74 to the bran removal chamber 24 through the bran removal passage 75, and is collected in the cyclone 21 together with the dust from the milling chamber 7 and the like. It

Immediately after the start of polishing, incompletely polished rice is discharged from the discharge gutter 42, so the forward / reverse rotation motor 43 is operated to reverse the discharge gutter 42 to the position indicated by the chain line to circulate the unpolished rice. That is, the unpolished rice drops from the refined product outlet 41 to the rice collecting trough 44, and is sent from the supply trough 12 to the brown rice supply inlet 8 via the reversion trough 45 to be 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 35
When the handle 39 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 polishing chamber 7 increases and the grinding accuracy is improved, and the polished rice having an appropriate grinding accuracy is sent up by the spiral body 50 of the resistance device 49, and then 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 forward / reverse rotation motor 43 is activated by the signal from the sensor 52, so that 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 counter-return gutter 45 and is re-polished. Then, the rice grains that have been circulated until they reach an appropriate level of accuracy are automatically rotated by a timer or the like, and manually by checking the accuracy of the level from the window 46.
Is operated to reverse the discharge gutter 43 to the position indicated by the solid line, and the discharge gutter 43 is discharged to the outside of the machine.

FIG. 5 shows another embodiment of the present invention, in which a conveyor shaft 27 provided with a blowhole 76 is surrounded by a perforated wall tube 77, and a ventilation path 78 between the conveyor shaft 27 and the connecting rod 30 is provided with a perforated wall tube. Between the 77 and the outer cylinder 79 is formed a bran removal passage 80, respectively. The bran removal passage 80 is connected to the bran removal chamber 24, and the reference numeral 71 is an injection nozzle.

White rice is moistened and softened by the fog and moist air from the injection nozzle 71, and the softened white rice is peeled off by a thin layer during the feeding by the spiral body 26 of the conveyor shaft 27, and by the mutual friction polishing action of the white rice. Be ground. In addition, white rice receives bran-removing action during pumping. That is, dust such as bran mixed in the white rice by the bran air blown out from the jet outlet 76 of the conveyor shaft 27 is sent from the through hole of the perforated wall cylinder 77 to the bran chamber 24 through the bran passage 75, and the polishing chamber Collected in cyclone 21 together with dust such as bran from 7.

〔The invention's effect〕

According to the vertical shaft type rice milling machine of the present invention, the hollow screw conveyor shaft of the upper conveying device is concentrically connected to the upper part of the milling trochanter, and the connecting rod is slidably fitted in the screw conveyor shaft. The lower part of the connecting rod is connected to the resistance device with a spiral wound in the white rice discharge part, and the upper part is connected to the pressure control device that adjusts the pressure of the resistance plate, adding water to the white rice fed in the upper transfer device. Since it is equipped with a water addition device, the white rice discharge port of the rice polishing machine can be placed at a high position, a large container for taking out white rice can be used, and the resistance plate provided at the discharge port can adjust the pressure level of the simple structure. It can be easily adjusted by the device, and the accuracy of the hammer can be freely changed.
In addition, it is possible to add water to polished white rice with a water addition device with a simple structure, which makes it possible to finish to a beautiful glossy rice, so there is no need to install a humidifying and polishing rice machine, and significant cost reduction is possible. It will be possible.

[Brief description of drawings]

FIG. 1 is a side sectional view of a vertical axis rice milling machine according to the present invention, FIG. 2 is a view showing an upper conveying device, FIGS. 3 and 4 are partially enlarged views thereof, and FIG. FIG. 6 is a diagram showing an example, and FIG. 6 is a diagram showing a conventional example. 1 …… Vertical type rice milling machine 2 …… Perforated wall removal bran polishing tube 3 ……
Main axis, 4 ... spiral rotator, 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, 35 …… Pressure level adjusting device, 36 …… Bearing, 37 …… Supporting rod, 38 …… Adjusting rod, 39 …… Handle, 40 …… Scraping blade, 41 …… Refining 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 ... Helical body, 51 ... Cylindrical body, 52 ... Sensor, 53 ... Vertical-axis rice milling machine, 54 ... Porous-wall removing bran polishing white cylinder, 55 ... Main shaft, 56 ...... Spiral trochanter, 57 …… Whitening trochanter, 58 …… Whitening chamber, 59 …… Brown rice supply part, 60 …… Refined product discharge part, 61 …… Resistance plate, 62 …… Ammunition pressure adjustment plate, 63 …… Spring, 64 ...... discharge gutter, 65 …… discharge port, 66 …… opening and closing plate, 67 …… return port, 68 …… reduction cylinder, 69 …… water addition device, 70 …… upper feed path, 71 …… injection Nozzle, 72 ... water supply pipe,
73 …… Air supply pipe, 74 …… Perforated wall plate, 75 …… Bran, 76 ……
Vent holes, 77 ... perforated wall cylinder, 78 ... ventilation passage, 79 ... outer cylinder, 80 ... brannel.

Claims (1)

[Claims] 1. A vertical shaft provided rotatably in the cylindrical body and a spiral trochanter and a white trochanter on the upper part of the spiral trochanter. It is equipped with a shaft, and the lower part of the whitening chamber, which mainly consists of a porous wall debranching whitening cylinder and whitening trochanter, is connected to the brown rice supply part and the upper part to the white rice discharge part, respectively. The screw conveyor shaft is concentrically connected, the connecting rod is slidably fitted in the screw conveyor shaft, the lower part of the connecting bar is the resistance device provided in the white rice discharging part, and the upper part is the pressure of the resistance device. The vertical axis rice milling machine is characterized in that each of the vertical axis rice milling machines is provided with a water adding device for adding water to the white rice fed upward in the upper conveying device, each device being connected to a pressure adjusting device.