JPS63214357A - Vertical shaft type cereal-cleaning machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vertical grain milling machine that feeds grain from the lower part, mills the grain, and discharges the grain from the upper part.

[Conventional technology]

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

Reference numeral 33 is a friction type vertical shaft type grain milling machine, in which a vertical shaft 35 is rotatably provided in an upright porous-walled bran removal and whitening cylinder 34, and a spiral rotor 36 is installed at the bottom of the shaft 35, and a WJr! Insert the A grain trochanter 37 into each shaft. The grains input into the intake port 38 are fed to the grain feeding trough 3.
The grains are fed from the supply port 40 to the spiral trochanter 36 via the spiral trochanter 36, and the grains are lifted to the grain milling room 41 by the spiral trochanter 36. In the grain milling room 41, the grains are milled under the milling action generated by the rotation of the friction grain milling trochanter 37, and the milled grains are passed through the discharge port 42.
It is discharged from the machine through the discharge gutter 43.

However, in the conventional vertical shaft type grain milling machine as mentioned above,
Soft rice, such as long-grain foreign rice or inland rice, is milled using a friction milling trochanter.

When soft grains such as immature rice are milled, there is a problem in that the grains are crushed due to the great pressure exerted on them.

Furthermore, since the grain is supplied by gravity, the supply may be temporarily stopped due to a bridging phenomenon or the like, or the feeder may become irregular. For this reason, there were problems such as irregular supply of grain to the grain milling room, resulting in uneven grinding, and the inability to provide a large-capacity device because the required amount of grain could not be continuously supplied.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned problems and makes it possible to mill grains that are easily broken, such as long grains, etc., and also constantly forcibly feeds grains to eliminate irregularities caused by irregular grain supply. An object of the present invention is to provide a vertical shaft type grain milling machine that can prevent pounding and increase its capacity.

[Means for solving problems]

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

A grinding grain trochanter with a concentric cross section and a grinding cutting edge provided on the surface almost all around the circumference is mounted on a vertical shaft rotatably provided in an upright porous-walled bran removal and polishing station.

The lower part of the grain milling room, which mainly consists of a porous-walled bran removal cylinder and a grinding grain trochanter, is connected to a grain supply part and the upper part to a grain discharge part, and the grain is forcibly supplied to the grain milling chamber. The machine faces the grain supply section to form a vertical grain milling machine.

[For production]

The grains forcibly sent from the grain supply section into the porous-walled bran removal cylinder by the conveyor of the vertical shaft-type grain milling machine have a grinding grain trochanter and a porous-walled bran removal and polishing cylinder as the main parts. The grain is controlled in the grain mill. The milled grains are discharged from the grain discharge section and sent to the next process.

(Example) An example of the present invention will be described with reference to the drawings. 1st
The figure is a partially cutaway side view of a grinding type vertical grain milling machine. Reference numeral 1 denotes a grinding type vertical shaft type grain milling machine, in which a spiral rotor 4 is installed at the bottom of a vertical shaft 3 rotatably installed in a perforated-walled bran removal and whitening cylinder 2.
A grinding grain trochanter 5 is inserted into the upper part of each shaft. Further, the grinding yI grain rotor has a concentric cross section, and a cutting edge for grinding is provided on the surface almost all around the circumference. The lower part of the grain milling chamber 6, whose main parts are a porous-walled bran removal cylinder 2, a spiral trochanter 4, and a grinding grain trochanter 5, is connected to a grain supply section 7, and an upper part is connected to a grain discharge section 8, respectively. . A main motor 10 is provided in the base 9, and a main motor shaft 11
A driving pulley 12 attached to the shaft 3 and a passive pulley 13 attached to the vertical shaft 3 are connected by a belt 14. A driving pulley 17 of an electric motor 16 placed on an electric machine stand 15 and a passive pulley 20 attached to a conveyor shaft 19 of a grain supply section W118 are connected by a belt 21. Further, a spiral body 22 is wound around the conveyor shaft 19, and the grain supply device 18 is connected to the grain supply section 7. The grain discharge section 8 is provided with a resistance lid 24 of the pounding precision adjustment device 23, and the grain discharge section 8 is connected to the discharge gutter 2.
5 to the scrape conveyor 26 and feed gutter 2
7 to a grain feeding device 18. A competition V-chain 29 with a scraper 28 attached thereto is wound around the scrape conveyor 26. Reference numeral 30 is a rice bran collection chamber, and the rice bran collection W30 is connected to a rice bran discharge pipe 32 via an exhaust fan 31.

Next, the operation of the above configuration will be explained. Grain is fed to feed gutter 2
7 to the grain feeding device 18 of the grinding type vertical grain milling machine 1. When the main electric motor 10 that drives the vertical shaft 3 and the electric motor 16 that drives the grain supply section W118 are started, the grains are forcibly supplied from the grain supply section 7 to the spiral rotor 4 by the spiral body 22. The grains are transported to the grain milling room 6 by the spiral trochanter 4, and are milled in the grain milling room 6 by the milling action generated by the rotation of the grinding grain trochanter 5, and the milled grains are sent to the grain discharge section. Reach 8. Resistance M of the pounding precision adjustment device 23
24 suppresses the outflow to the discharge gutter 25, and the resistance lid 24
The pounding accuracy can be adjusted by changing the inhibition υ1. The grains are then sent from the discharge gutter 25 to the next stage via a scrape conveyor 26. Dust such as bran generated by the milling action in the grain milling room 6 is removed from the porous walled bran removal cylinder 2.
The rice bran is discharged through the through hole and sent to the bran collection chamber 30, and then
The bran is suctioned and pressure-fed through the bran discharge pipe 32, and the
(not shown) is sent to a bran collector.

Note that the milling action in the present invention is a grinding action, and the grinding action is a grinding action when the peripheral speed of the grain trochanter is 60On+/
The 'M grain effect and V# impact that occur at win or above are the predisposing factors for grain milling action, and the trochanter uses a material with a cutting edge for grinding, which is also predicted to be speed-based grain milling action. . Generally, in large rice milling factories, a grinding type grain milling machine is arranged in series in the front stage and a friction type grain milling machine is arranged in the rear stage. In other words, after cutting the waxy tissue of the grain (brown rice) epidermis using a grinding type grain milling machine to increase the friction coefficient of the surface layer, a friction type grain milling machine peels off the A layer and performs rational milling. There is.

In addition, when pounding precision is increased, such as for sake-brewing rice, as the pounding precision increases, some pressure increases during the pounding process, causing stagnation (
This may cause a squeak phenomenon (squeaking phenomenon) and make it impossible to fertilize. This can be prevented by making the lower diameter of the grinding grain trochanter smaller than the upper diameter, as shown in FIG. 2, or by forming a step on the outer diameter of the grinding grain trochanter, as shown in FIG. That is, in the case of FIG. 2, the pressure becomes smaller as it goes upward, and in the case of FIG. 3, high pressure and low pressure are continuous, so that the stagnation phenomenon (squeak phenomenon) can be prevented.

C Effects of the Invention] According to the vertical grain milling machine of the present invention, the grain milling trochanter is a grinding grain trochanter whose cross section is concentric and has cutting edges for grinding provided on the surface almost around the entire circumference. Because the conveyor that forcibly feeds grains is configured to face the grain feeding section, it is possible to produce long-grain foreign rice and soft inland rice.

Even soft grains such as immature rice do not break into pieces because the pressure on the grains is small.

Further, the conveyance device prevents temporary supply stoppage or irregular supply due to bridging phenomenon in the gravity grain feeding device, and it is possible to completely prevent unevenness due to insufficient supply to the milling room.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of a grinding type vertical grain milling machine embodying the present invention, FIGS. 2 and 3 are partially cutaway side views of other embodiments, and FIG. is a side sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Grinding type vertical shaft type grain milling machine, 2... Porous wall bran removal milling cylinder, 3... Vertical shaft, 4... Spiral trochanter, 5... Grinding grain milling trochanter, 6 ...Grain polishing empty, 7...Grain supply section, 8...
- Grain discharge section, 9... Base, 10... Main motor, 1
1... Main motor shaft, 12... Drive pulley, 13...
...Vertical shaft, 14... Passive pulley, 15... Electric machine stand, 16... Electric motor, 17... Drive pulley, 1
8... Grain feeding device, 19... Conveyor shaft, 20...
...Passive pulley, 21...Belt, 22...Spiral body, 23...Sperm skin conditioning device, 24...Resistance lid, 2
5...Discharge gutter, 26...Scrap conveyor, 28
...Scraper, 29...Conveyor chain, 3
0... Bran collection room, 31... Exhaust fan, 32... Bran exhaust pipe, 33... I! ! Scratch type vertical shaft type M grain machine, 34... Porous wall bran removal polishing cylinder, 35... Vertical shaft, 36... Spiral trochanter,
37...Friction grain trochanter, 38...Intake port, 39...
・Grain feeding gutter, 40... Supply port, 41... Grain cleaning gutter, 42
...Discharge port, 43...Discharge gutter.

Claims (1)

[Claims] A grinding grain trochanter with a concentric cross section and a grinding cutting edge on the surface almost all around the circumference is mounted on a vertical shaft rotatably installed in a perforated-walled rice bran removal cylinder. The lower part of the grain milling room, which mainly consists of a wall-removal bran polishing tube and a grinding grain trochanter, is connected to a grain supply section, and the upper part is connected to a grain discharge section. A vertical shaft type grain milling machine characterized by facing the grain supply section.