JPH01164450A - Vertical axis type rice-cleaning machine - Google Patents

Abstract

PURPOSE: To dispose a milled rice discharge port at a high place, to increase the size of a takeout vessel and to facilitate a grain polishing degree adjustment by concentrically connecting a screw conveyor shaft for lifting to the upper part of a grain polishing roller and interposing a grain polishing degree adjusting device between both. CONSTITUTION: The unpolished rice supplied to a spiral roller 6 from the unpolished rice supply section 8 of the vertical shaft type rice milling machine 1 is forcibly fed by the spiral roller 4 and is pearled in the grain polishing chamber 7 consisting of a perforated bran removing and grain polishing cylinder 2 and a grain polishing roller 6 as main parts. The milled rice subjected to pearling arrives at the milled rice discharge part 9 while the outflow thereof is suppressed by the resistance plate 33 of the grain polishing degree adjusting device 32, milled rice flows out into an upper transporting device 27 and is fed upward by the spiral body 28 of the conveyor shaft 29. The milled rice is then discharged to the outside of the machine by a polished rice discharge port 38 at the top end.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertical rice milling machine that supplies brown rice from the lower part of the milling chamber and mills it, and discharges the milled rice from the upper part.

[Conventional technology]

A conventional vertical shaft type rice milling machine will be explained with reference to FIG.

Reference numeral 44 denotes a vertical shaft type rice polishing machine, in which a spiral rotor 4 is rotatably installed in a perforated-walled rice polishing cylinder 45 on a main shaft 46.
7 and a milling trochanter 48 are mounted on a shaft, and the lower part of the milling chamber 49 is connected to a brown rice supply part 50 and the upper part to a refined product discharge part 51, respectively. Reference numeral 52 is a resistance plate that presses the fine product discharge section 51;
Reference numeral 53 is an elastic force adjustment plate of a spring 54 that presses against the resistance plate 52, and the fine product discharge section 51 is connected to a discharge port 56 via a discharge gutter 55.

The brown rice supplied to the brown rice supply section 50 is supplied to the whitening room 49 by the screw h2 trochanter 47, and is milled while being sent once in the whitening room 49. 1. Milled polished rice is discharged by υ1 from the refined product discharge section 51 while resisting the low resistance plate 52, and then passed through the discharge gutter 5)
Flowing down]) 1 out [156 to υF out of redemption.

However, in the conventional vertical rice milling machine as mentioned above,
Because the polished rice is configured to flow down the discharge 6M55 from the refined product discharge section 51 in a natural fall manner and be discharged from the discharge port 56, the discharge port 56 must be provided at a low position. Therefore,
The container for taking out polished rice provided at the lower part of the discharge port 56 has become smaller, which makes the task of replacing the container more frequent and cumbersome, and there have been problems in that the discharge ω of polished rice must be constantly monitored.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned problems, and provides a vertical shaft type rice polishing machine that has a polished rice discharge port located at a high position and can accommodate a large polished rice removal container that can accommodate the entire amount of brown rice that has been loaded. The purpose is to provide.

[Means for solving problems]

A part of the erected cylinder is used as a porous-walled rice bran polishing cylinder, and a spiral trochanter and a refined trochanter are inserted into the vertical shaft rotatably provided in the cylinder, and a polished trochanter is inserted into the upper part of the spiral trochanter to remove the porous wall. The lower part of the milling chamber, whose main parts are a bran milling tube and a milling trochanter, is connected to a brown rice supply section, and the upper section is connected to a polished rice discharge section. A screw conveyor shaft of an upper conveyor is concentrically connected to the upper part of the whitening trochanter, and a whiteness adjustment device is provided below the whitening trochanter at a position below the spiral wound around the screw conveyor shaft. Form a shaft-type rice mill.

[For production]

The brown rice supplied to the spiral trochanter from the brown rice supply section of the vertical rice milling machine is lifted by the spiral trochanter and milled in a milling chamber whose main parts are a porous-walled bran removal polishing tube and a milling trochanter. . The milled white rice is discharged from the milled rice discharge section while its outflow is suppressed by a milling degree adjustment device, and is roughly conveyed once by a screw conveyor and discharged outside the machine.

〔Example〕

Embodiments of the invention will be described with reference to the drawings. 1st
The figure is a sectional side view of a vertical shaft type rice milling machine embodying the present invention, and FIG. 2 is a diagram showing a polishing level adjustment device.

Reference numeral 1 denotes a vertical shaft type rice polishing machine, which is rotatably installed in an upright porous walled rice polishing cylinder 2. I set it up? The polished white trochanter 6 is mounted on each shaft.

The lower part of the polishing chamber 7, whose main parts are a porous-walled rice bran removal cylinder 2 and a friction polishing trochanter 6, is a brown rice supply port 8, and the upper part is a polished rice discharge port 9.
Please contact each of them.

Reference numeral 10 is a tank for brown rice, and a bottom plate 11 at the bottom thereof is connected to a supply port 8 via a supply gutter 12. The pulley 15 of the motor 14 placed on the motor mounting stand 13 and the main shaft 3
The pulley 16 is connected to the V-belt 17. Main shaft 3 pulley 18 and feed IC! 119 pulley (not shown)
are connected by a V-belt 20, and a bran discharge port 21 of the blower 19 is connected to a cyclone 23 via a bran discharge pipe 22. Reference numeral 24 is an air intake port, reference numeral 25 is a blower port, and the rice bran remover 26 is connected to the blower 19 via a rice bran removal duct (not shown).

Reference numeral 27 denotes an upper conveying device, in which the lower end of a screw conveyor shaft 29 wound with a spiral body 28 is fitted into the upper end of the friction polishing trochanter 6 and connected by a coupling bin 30, and the conveyor shaft 29
The upper end of 9 is fitted into the bearing 31. Reference numeral 32 denotes a polishing level adjustment device, and an adjustment rod 34 is connected to a resistance plate 33 provided at the polished rice discharge port 9. Since the adjustment rod 34 is tensioned by a spring 35, the resistance plate 33 is always under downward pressure, and 36 is a weight for adjusting the polishing degree.

A scraping blade 37 is provided at the upper end of the conveyor shaft 29, and a discharge gutter 39 is connected to a refined product discharge port 38 of the upper conveyance device 27. Further, a return port 40 is provided below the refined product discharge port 38, and a return valve 41 is rotatably provided in the return port 40.

Next, the operation of the above configuration will be explained. motor 14
When the brown rice in the brown rice tank 10 is driven, the brown rice in the brown rice tank 10 reaches the bottom plate 1.
1 flows down from the supply gutter 12 through the supply port 8 to the spiral rotor 4.
sent to. The brown rice is transported to the milling room 7 by the spiral trochanter 4, and the I! ? ! Refining is performed by the refining action generated by the rotation of the trochanter 6. Then, the rice bran removal effect is performed by the removing air 1a that is sucked from the air intake port 29 by the feeder PJil 119 and ejected from the jet port 25. Dust such as rice bran generated by the whitening action in the whitening chamber 7 is discharged from the through hole of the porous-walled rice bran removing whitening cylinder 2 to the rice bran removing chamber 26, and is sent from the bran removing duct (not shown) to the blower 19. Bran discharge 21. The rice bran is sent to the cyclone 23 through the rice bran discharge pipe 22 and collected.

The polished rice reaches the polished rice discharge port 9 and flows out against the resistance plate 33 while being suppressed by the resistance plate 33. Then, the polished rice is sent down inside the upper conveyance device 27 by the spiral body 28 of the conveyor shaft 29, and the polished rice that has reached the -F end is accelerated to be discharged to the scraping blade 37, and the polished rice is discharged from the refined product discharge port 38. After that, it is discharged from the discharge gutter 39 to the outside of the machine.

Immediately after the start of milling, incompletely milled rice is discharged from the discharge gutter 39, so the return valve 41 provided at the reduction port 40 is rotated to return it to the rice grain tank 10, and the incompletely milled rice is re-milled. Shout out. Then, when the return well 41 is reversed after a predetermined period of time has elapsed, the polished rice that has reached an appropriate degree of polishing is discharged out of the machine from the discharge u139.

Further, the whiteness adjustment function is performed by a whiteness adjustment device 32. That is, when the weight 36 fitted to the adjustment rod 34 is slid left and right, the resistance plate 33 moves up and down, thereby changing the degree of suppression of outflow of polished rice and adjusting the degree of polishing.

J3, as the milling process progresses and the number of brown rice items decreases, insufficient milling will occur and incompletely milled rice will be discharged outside the machine. Therefore, a sensor 42 provided on the bottom plate 11 detects the decrease in brown rice, and a signal from the sensor 42 operates a forward/reverse motor (not shown) to rotate the return valve 41.

Then, the tank for unpolished white rice is 19 and the tank for brown rice is 10.
It will be returned and re-whitened. The rice grains that have been circulated until they reach an appropriate level of polishing are then driven by a timer or the like to operate a forward/reverse motor to reverse the return valve 41, and then to the discharge gutter 39.
is ejected from the aircraft.

FIG. 3 shows another embodiment of the present invention, in which a valve 40 is provided above the refined product discharge port 38, and a discharge valve 43 is provided in the discharge gutter 39 to open and close the refined product discharge [ ] 38. It is.

When starting or finishing polishing, the discharge valve 42 is rotated to close the refined product discharge port 38.

Then, the unpolished rice is returned to the rice grain tank 0 from the reducing port 40 and re-milled, and the refined product discharge port 38 is opened by reversing the discharge valve 42, and the re-milled rice is discharged from the discharge gutter 39 to the machine. Expelled outside.

〔Effect of the invention〕

According to the vertical shaft type rice milling machine of the present invention, the screw conveyor shaft is concentrically connected to the upper part of the milling trochanter, and the milling level is adjusted to the upper position of the milling trochanter at the lower position of the spiral wound around the screw conveyor shaft. The structure is equipped with an adjustment device, so the polished rice discharge port of the rice milling machine can be placed in a high position, allowing the use of a large container for removing polished rice, and the polishing level can be adjusted by the simple structure of the polishing degree adjustment device installed at the discharge port. can be changed easily and freely.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a vertical shaft type rice milling machine embodying the present invention, Fig. 2 is a view showing a polishing level adjustment device, Fig. 3 is a view showing another embodiment, and Fig. 4 is a conventional one. It is a figure showing an example. 1...Vertical shaft type rice polishing machine, 2...Porous wall removing rice bran polishing cylinder, 3
...Main shaft, 4...Spiral rotor, 5...Stirring protrusion, 6
... Ground polishing trochanter, 7... Polishing end, 8... Brown rice supply port, 9... White rice υ1 outlet, 10... Tank for brown rice, 11... Bottom plate, 12... Supply gutter, 13...Motor stand, 14...Motor, 15...Pulley,
16...Pulley, 17...V belt, 18...
Pulley, 19...Air blowing sound 1.20...V belt,
21...a] outlet, 22...tel-push pipe, 23
...Cyclone, 24...Intake port, 25...Ejection J
! ii D, 2G... Bran removal, 27... Upper conveyance device, 28... Spiral body, two... Slurry 1-conveyor shaft, 30... Connection pin, 31... Bearing, 32・・・
- Polishing degree adjustment device, 33... Low resistance plate, 34... Adjustment rod, 35... Spring, 36... Weight, 37... Scraping blade, 38... Fine product discharge port, 39 ...Discharge gutter, 4
0... Reduction port, 41... Return valve, 42... Sensor, 43... Discharge valve, 44... Vertical rice mill, 45
...Porous walled rice bran removal cylinder, 46...Main shaft, 47...
Spiral trochanter, 48... Semen trochanter, 49... Semen chamber, 5
0...Brown rice supply section, 51...Refined product discharge section, 52...
- Resistance plate, 53... Elastic force adjustment plate, 54... Spring, 55... Discharge gutter, 56... Discharge port.

Claims (2)

[Claims] (1) A part of the vertically installed cylinder is used as a porous-walled bran removal polishing cylinder, and a spiral trochanter is attached to a vertical shaft rotatably provided inside the cylinder, and a polishing trochanter is attached to the upper part of the spiral trochanter. The lower part of the milling chamber, whose main parts are a porous-walled rice bran removal cylinder and a milling trochanter, is connected to the brown rice supply section, and the upper section is connected to the polished rice discharge section. A vertical shaft type rice milling machine, characterized in that conveyor shafts are connected concentrically, and a polishing degree adjustment device is provided at a position below a helix wound around the screw conveyor shaft and above a polishing trochanter. (2) Vertical type rice milling according to claim 1, wherein openings are provided at the high and low positions of the upper end of the case of the upper conveyance device, and an opening/closing device is provided at the opening on the low position side. Machine.