JPH01148350A - Vertical rice-cleaning machine - Google Patents

Abstract

PURPOSE: To make it possible to increase the size of a pearled rice take-out vessel by fitting a connecting rod to a screw conveyor shaft connected to the upper part of a gin peerling rotor, connecting the lower part of the connector rod to a resistance device and the upper part to a compressing degree adjusting device, respectively, and forming a discharge trough in such a manner that rice grains can be returned to an unpolished rice supply section. CONSTITUTION: The unpolished rice supplied to a spiral rotor 4 is lifted by the spiral rotor 4 and its pearled in a pearling chamber 7 consisting of a perforated wall bran removing and pearling cylinder 2 and the pearling rotor 6 as main parts. The pearled rice subjected to pearling is discharged from a pearled rice discharge port 9 while the outflow thereof is suppressed by a resistance plate 32. The pearled rice is fed upward by the screw conveyor shaft 27 and is discharged to a discharge trough 42. At this time, the compressing degree adjusting device 35 is adjusted, thereby, the connecting rod 30 is slid vertically in the screw conveyor shaft 27 and the resistance device 49 is accordingly moved vertically and the pearling degree of the pearled rice is adjusted. Since the imperfectly paarled rice occurs at the time of start or end of the pearling the unpolished rice is returned to the unpolished rice supply port 8 by rotating the discharge trough 42, to execute the repearling.

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 53 denotes a vertical shaft type rice polishing machine, in which a spiral rotor 56 is attached to a main shaft 55 rotatably provided in an upright porous-walled rice polishing cylinder 54.
and a milling trochanter 57 are mounted on shafts, and the lower part of the milling chamber 58 is connected to the brown rice supply section 53 and the upper section is connected to the refined product discharge section 60, respectively. Reference numeral 61 is a resistance plate that presses the fine product discharge section 60;
Reference numeral 62 denotes an elastic force adjustment plate of a spring 63 that presses against the resistance plate 61, and the fine product discharge section 60 communicates with a discharge port 65 via a discharge gutter 64.

Further, a discharge gutter 65 provided with an opening/closing plate 66 and a return port 67 are connected through a reducing tube 68.

The brown rice supplied to the brown rice supply section 59 is supplied to the milling chamber 58 by the spiral trochanter 56, and milled while being conveyed once in the milling chamber 58. The milled white rice is discharged from the refined product discharge section 60 while resisting the resistance plate 61, flows down the discharge gutter 64, and is discharged out of the machine from the discharge port 65. In addition, since unmilled rice occurs at the beginning and end of milling,
The opening/closing plate 66 is erected, and the unmilled rice is supplied to the return port 67 via the reducing cylinder 68 and is milled again.

However, in the conventional vertical rice milling machine as mentioned above,
The polished rice flows down the discharge gutter 64 from the refined product discharge section 60 in a natural fall manner and is discharged from the discharge port 65, so the discharge port 65 needs to be provided at a low position. As a result, the container for taking out the polished rice provided at the lower part of the outlet 65 has become smaller, and the container has to be replaced frequently, which is cumbersome, and the discharge state of the polished rice must be constantly monitored.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned problems, and increases the size of the container for removing polished rice by providing the discharge port for polished rice at a high position.
An object of the present invention is to provide a vertical shaft type rice milling machine capable of adjusting the precision of milling white rice at the start of milling and at the end of milling.

[Means for solving problems]

A part of the erected cylinder is used as a porous-walled rice bran removal and polishing cylinder, and a spiral trochanter and a whitening trochanter are inserted into a vertical shaft rotatably provided in the cylinder, and the porous-walled rice bran removal and whitening cylinder and whitening trochanter are assembled. The lower part of the milling room, whose main part is rice flour, is connected to the brown rice supply part, and the upper part is connected to the white rice discharge part. Then, the hollow screw conveyor shaft of the upper conveyor device is concentrically connected to the upper part of the milling trochanter, and the connecting rod is slidably fitted to the screw conveyor shaft, and the lower part of the connecting rod is installed in the polished rice discharge section. the upper part is connected to a compression degree adjustment device for adjusting the pressure of the resistance degree, and
A discharge gutter connected to the refined product discharge port of the upper conveyance device is formed to be rotatable so that the rice grains are returned to the brown rice supply section.

[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 white rice discharge section while its outflow is suppressed by a resistance plate, and is further conveyed once by a screw conveyor and discharged outside the machine. Then, by adjusting the compression degree adjusting device, the connecting rod slides up and down within the screw conveyor shaft, and the resistance device moves up and down accordingly, adjusting the precision with which the polished rice is pounded. Furthermore, since incompletely milled rice occurs at the start of milling or at the end of milling, the discharge gutter is rotated to return the rice grains to the brown rice supply section for re-milling.

〔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, FIG. 2 is a diagram showing the rotating state of the discharge gutter, and FIGS. 3 and 4 are partially enlarged views of the upper conveying device.

Reference numeral 1 denotes a vertical shaft type rice polishing machine, which has a hollow main shaft 3 rotatably provided in an upright porous-walled rice polishing cylinder 2, a spiral rotor 4 at the bottom, and a stirring protrusion 5 at the top. A friction polishing 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. A pulley 47 of the motor 14 placed on the motor mounting stand 13 and a pulley 15 of the main shaft 3 are connected to a V-belt 48. A pulley 16 and a pulley (not shown) of a blower 17 are 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 blower port, and the bran removal chamber 24 is connected to the blower 17 via a bran removal duct (not shown).

Reference numeral 25 denotes an upper conveyor, in which the lower end of a hollow screw conveyor shaft 27 wound with a spiral body 26 is fitted onto the upper end of the friction polishing trochanter 6 and connected by a connecting pin 28, and the upper end of the conveyor shaft 27 is Fits into the bearing 29. Conveyor shaft 2
A connecting rod 30 is slidably fitted into the connecting rod 3o, and the lower part of the connecting rod 3o is connected to a resistance device 4 provided at the white rice discharge port 9 by means of a connecting bottle 31.
Connect to 9. The resistance device 49 includes the resistance plate 32 and the spiral body 50
33 is an elongated hole-shaped gap provided in the conveyor shaft 27, and 34 is a buffer spring. The upper end of the connecting rod 30 is connected to a compression degree adjusting device 35. The upper end of the connecting rod 30 is fitted into a bearing 36, and the bearing 36 is connected to an adjusting rod 38 via a support rod 37, and reference numeral 39 is an adjustment handle attached to the tip of the adjusting rod 38.

A scraping blade 40 is provided at the upper end of the conveyor shaft 27, and a discharge gutter 42 is connected to a fine product discharge port 41 of the upper conveyance device 25. The discharge gutter 42 is rotatably formed by a forward/reverse motor 43, and the collection 6!44 is connected to the supply gutter 12 via the return gutter 45, and 46 is a window for checking the accuracy of pounding the rice grains. .

Next, the operation of the above configuration will be explained. When the motor 14 is driven, the brown rice in the brown rice tank 10 is transferred to the bottom plate 11.
flows down and is sent from the supply gutter 12 to the spiral rotor 4 via the supply port 8. The brown rice is transported to the milling chamber 7 by the spiral trochanter 4, and is milled by the milling action generated by the rotation of the friction milling trochanter 6. Then, the rice bran removal effect is performed by the rice bran removal air that is sucked from the air intake port 22 by the blower 17 and ejected from the jet 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-walled bran removing polishing cylinder 2 to the bran removing chamber 24, and is sent through a bran removing duct (not shown) to the
f1 machine 17, bran discharger 19. The rice bran is sent to a cyclone 21 through a rice bran discharge pipe 20 and collected therein.

The polished rice reaches the polished rice discharge port 9 and flows out against the resistance plate 32 while being suppressed from flowing out by the resistance plate 32. Then, the polished rice is transported upward in the upper conveying device 25 by the spiral body 26 of the conveyor shaft 27, and the polished rice that has reached the upper end is accelerated to be discharged by the scraping blades 40, and is discharged from the discharge gutter 42 through the refined product discharge port 41. It is ejected from the aircraft.

Immediately after the start of milling, incompletely milled rice is discharged from the discharge gutter 42, so the forward and reverse rotation motor 43 is operated to
The i142 is reversed to the position indicated by the chain line, and the unpounded and polished rice is circulated. In other words, unmilled rice is transferred from the refined product outlet 41 to the rice collection gutter 44.
The unpolished rice is sent to the supply port 8 from the supply gutter 12 via the return gutter 45, and is re-milled. Then, after confirming through the window 46 that proper pounding accuracy has been reached after a certain period of time has passed, the forward/reverse motor 43 is activated to reverse the discharge 6142 to the position shown by the solid line, and the polished rice is discharged from the discharge gutter 42 to the outside of the machine. be done.

Next, the effect of pounding precision adjustment will be explained. Compression level adjustment device 3
When the handle 39 of No. 5 is pushed down, the connecting rod 30 is pushed down via the bearing 36, and accordingly, the resistance plate 32 is pushed down via the cylindrical body 51. Then, the whitening room 7
The internal pressure increases and the pounding accuracy improves, and the polished rice, which has been pounded to a proper pounding accuracy, is transported upward by the spiral body 50 of the resistance device 49, and then further conveyed upward by the spiral body 26 of the screw conveyor shaft 27. At this time, the spiral body 50 wound around the cylindrical body 51 of the resistance device 49 promotes the upward movement and prevents retention.

Note that as the milling process progresses and the amount of brown rice decreases, a shortage of milled rice will occur and the unmilled rice will be discharged outside the machine.

Therefore, a sensor 52 provided on the bottom plate 11 detects a decrease in brown rice, and a signal from the sensor 52 activates a forward/reverse motor 43 to reverse the discharge gutter 42 to the position shown by the chain line.

Then, the unmilled and milled rice is returned to the brown rice supply port 8 via the return gutter 45 and is milled again. Then, the rice grains that have been circulated until the proper pounding accuracy is achieved are automatically operated by a timer or the like, or manually by checking the pounding accuracy through the window 46, and the forward/reverse rotation motor 43 is operated to move the discharge gutter 43 into the solid line. It is ejected from the machine by being turned over.

〔Effect of the invention〕

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 polishing trochanter, and the connecting rod is slidably fitted to the screw conveyor shaft to connect it. The lower part of the rod is connected to a resistance device that is wound with a spiral body installed in the polished rice discharge section, and the upper part is connected to a pressure adjustment device that adjusts the pressure of the resistance plate, and the discharge gutter is connected to the refined product discharge port of the upper conveyance device. Since the rice grains are configured to be rotatable so that they can be returned to the brown rice supply section, the polished rice discharge port of the rice milling machine can be placed at a high position, allowing the use of a large container for taking out polished rice, and the rice grains can be placed at the discharge port. The resistance plate can be easily adjusted using a compression degree adjustment device with a simple structure, and the accuracy of pounding can be freely changed. In addition, the rotatable discharge gutter allows for
With a simple operation, unmilled and milled rice can be re-milled to produce white rice with appropriate milling precision.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a vertical rice milling machine embodying the present invention, FIG. 2 is a diagram showing the rotating state of the discharge gutter, FIGS. 3 and 4 are partially enlarged views of the upper conveying device, FIG. 5 is a diagram showing a conventional 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
... Friction polishing trochanter, 7... Polishing room, 8... Brown rice supply port, 9... White rice discharge port, 10... Tank for brown rice,
11... Bottom plate, 12... Supply gutter, 13... Motor mounting stand, 14... Motor, 15... Pulley, 1
6... Pulley, 17... Air blower, 18... V-belt, 19... Bran discharge port, 20... Bran discharge pipe, 21.
Cyclone, 22... Intake port, 23... Blower port, 24... Bran removal chamber, 25... Upper conveyance device, 26...
...Spiral body, 27...Screw conveyor shaft, 28.
...Connecting pin, 29...Bearing, 30...Connecting rod, 3
DESCRIPTION OF SYMBOLS 1... Combined bottle, 32... Resistance plate, 33... Gap, 34... Spring, 35... Compression degree adjustment device, 36...
...Bearing, 37...Support rod, 38...Adjustment rod, 39
... Handle, 40... Scraping blade, 41... Precious product outlet, 42... Discharge gutter, 43... Forward and reverse rotation motor, 44... Rice collection gutter, 45... Return gutter ,46...
Window, 47...Pulley, 48...V belt, 49...
・Resistance device, 50... Spiral body, 51... Cylindrical body, 52
...Sensor, 53...Vertical shaft type rice mill, 54...
Porous-walled bran removal polishing cylinder, 55... Main shaft, 56... Spiral trochanter, 57... Refining trochanter, 58... Refining chamber, 59...
・Brown rice supply section, 60... Refined product discharge section, 61... Resistance plate, 62... Elastic force adjustment plate, 63... Spring,
64...Discharge gutter, 65...Discharge port, 66...Opening/closing plate, 67...Return port, 68...Reduction tube.

Claims (1)

[Claims] A part of the erected cylinder is used as a porous-walled rice bran removal and polishing cylinder, and a spiral trochanter and a whitening trochanter are mounted on a vertical shaft rotatably provided in the cylinder. The lower part of the milling chamber, which has a trochanter as its main part, is connected to the brown rice supply section and the upper section is connected to the polished rice discharge section, and the hollow screw conveyor shaft of the upper conveyor is concentrically connected to the upper part of the milling trochanter. A connecting rod is slidably fitted to the screw conveyor shaft, and the lower part of the connecting rod is connected to a resistance device provided in the white rice discharge section, and the upper part is connected to a pressure adjustment device for adjusting the pressure of the resistance device, and the above-mentioned A vertical rice milling machine characterized in that a discharge gutter connected to a refined product discharge port of an upper conveyance device is rotatably formed so that rice grains are returned to a brown rice supply section.