JPH0796099B2 - Vertical type grain mill - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical axis type grain refiner which feeds grains such as rice and wheat from below to refine the grains and discharges them from above.

[0002]

2. Description of the Related Art A vertical shaft type grain mill of this type will be described with reference to Japanese Patent Publication No. 54-3098 (FIG. 2).

Reference numeral 34 denotes an entire vertical shaft type grain refiner. A vertical shaft 36 rotatably provided in an upright white barrel 35 having a porous wall has a screw rotor 37 at the lower part and an upper part at the upper part. The fine grain trochanters 38 are respectively attached to the shafts. The grain is supplied to the spiral rotator 37 from the grain supply unit 40 provided at the lower part of the grain refinery chamber 41 via the supply gutter 39, and the spiral rotator 37 further causes the grain refinement chamber 4 to be supplied.
1 Pumped up. Then, the grain is refined in the grain chamber 41 mainly by the whitening action caused by the rotation of the grain trochanter 38, and the refined grain resists the resistance plate (deflection plate) 44. And is discharged from the grain discharging section 42 to the outside of the machine through the discharge gutter 43.

[0004]

However, in the conventional vertical type grain refiner as described above, the grain discharge section 42 provided on one side of the discharge port peripheral surface above the grain chamber 41 is provided with a resistor. Since the pile plate 44 is provided, it is difficult to uniformly apply pressure to the grains rising in the grain refinery chamber 41, the internal pressure becomes imbalanced, and the grain supply is a natural flow-down type due to its own weight,
When the pressure in the grain chamber is changed for the purpose of adjusting the degree of milling (rice yield), the supply amount increases or decreases, and the supply amount of grains to the grain chamber also increases or decreases accordingly. Muratsu)
There was a problem that it was difficult to make adjustments to obtain the grain of the target milling degree.

The present invention solves the above problems,
It is an object of the present invention to provide a vertical type grain refiner capable of constantly supplying a fixed amount of grains and evenly applying pressure to the grains rising in a whitening chamber to prevent spotting.

[0006]

In order to achieve this object, the vertical axis type grain mill of the present invention comprises: A vertical shaft is rotatably installed in the upright white barrel. B. A fine grain trochanter is connected to the upper part of the vertical shaft, and a spiral trochanter is axially attached to the lower end of the fine grain trochanter. C. A space between the milling cylinder and the spiral trochanter and grain trochanter is defined as a grain chamber. D. A grain supply unit is formed in the lower portion of the grain refinement chamber, and a grain discharge unit equipped with a whiteness adjusting unit made of a resistance plate is formed in the upper portion. E. A grain supply device for forcibly supplying grains is connected to the grain supply unit. F. The resistance plate is provided above the end of the grain refining chamber and urged in a direction substantially perpendicular to the vertical axis. I took the technical means.

[0007]

The grain supply device, which is composed of a carrier or the like forcibly transferring the grain by power, forcibly feeds the grain at a constant flow rate to the grain supply unit. The supplied grain is pumped by the spiral trochanter in the grain refining chamber, and refined in the grain refining chamber having a space between the white barrel and the grain trochanter as a main action part. The degree of milling, that is, the degree of milling, is performed by adjusting the outflow resistance of the grain with a resistance plate provided above the end of the grain chamber and urged in a direction substantially perpendicular to the vertical axis. Then, the grain that has been uniformly milled to the target degree of milling at the set flow rate,
It is discharged from the grain discharge section and sent to the next process.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway side view of a grinding type vertical axis grain refiner. Reference numeral 1 indicates the whole of the grinding type vertical axis grain refiner,
In a vertically erected white barrel 2 having a perforated wall, a grinding grain trochanter 4 is connected to the lower end of the grain trochanter 4 at the upper part of a vertical shaft 3 rotatably erected almost vertically, and spirally rolled. Each child 5 is integrally pivoted. The grinding grain trochanter 5 has a concentric cross section and is made of a grinding stone having a grinding cutting edge on almost the entire circumferential surface. The space between the ground fine grain trochanter 5 and the whitening cylinder 2 is formed as a fine grain chamber 6, the lower portion of the fine grain chamber 6 is formed as a grain supply unit 7, and the upper portion is formed as a grain discharge unit 8. To do. Further, a main electric motor 10 is provided in the base 9, and a drive pulley 12 attached to a main electric motor shaft 11 and a passive pulley 13 attached to the vertical shaft 3 are connected by a belt 14.

In the grain supply unit 7, the drive pulley 17 of the electric motor 16 mounted on the electric motor mount 15 and the shaft of the screw conveyor 33 forming the grain supply device 18 for forced supply of the grain. Passive pulley 2 attached to 19
The belt 21 is connected to 0. The screw conveyor is composed of a shaft 19 and a spiral body 22, the end of which is connected to the grain supply port 7a, and the grain supply device 1
A supply gutter 27 is connected to 8.

On the other hand, in the grain discharge part 8, a resistance plate 24 is provided as a whiteness adjusting device 23, which is biased toward the grain discharge part 8 by a weight W. That is, the resistance plate 24 is provided above the grain discharge port 8a by the arm 24a supported by the grain discharge portion 8 so as to urge it substantially at right angles to the axial direction of the vertical shaft 3. Furthermore, the grain discharge part 8 communicates with the scrape conveyor 26 via the discharge gutter 25. The scraper conveyor 26 has a trough 26a in which a conveyor chain 29 having a large number of scrapers 28 is attached. Reference numeral 30 denotes a bran-collecting chamber provided around the polishing tube 2, and the bran-collecting chamber 30 communicates with a bran-excluding pipe 32 through a blower 31.

Next, the operation of the above configuration will be described.
The raw grain (brown rice) is supplied from the supply gutter 27 to the grain supply device 18
Sent to. When the main electric motor 10 that drives the vertical shaft 3 and the electric motor 16 that drives the grain supply device 18 are started, the spiral body 22 of the screw conveyor 33 rotates to force a certain amount of grains to be supplied to the grain supply unit. It is supplied from 7 to the spiral trochanter 4 in the grain mill 6. In addition, the grain supply amount is the grain supply device 18
The rotation speed of the screw conveyor 33 is changed and the desired value is set by operating the supply amount adjusting device provided in.

The grains fed into the grain-refining chamber 6 are spiral trochanters 4
And is subjected to a polishing action caused by the rotation of the ground grain trochanter 5 while receiving a pressing force from directly above by the resistance plate 24. The grain refined (polished rice) reaches the grain discharge part 8 and flows out to the discharge gutter 25 against the resistance plate 24. The whitening degree can be adjusted by changing the suppressing force (weight position) of the resistance plate 24. Then, the grain is sent from the discharge gutter 25 through the scrape conveyor 26 to the next step.

Dust such as bran generated by the polishing action in the grain-refining chamber 6 may be separated in the next step, but in this embodiment, the refined barrel 2 has a porous wall. A debarking whitening tube was used, and the whitening tube 2 was discharged from the through hole and separated. The separated bran is sent to the bran collecting chamber 30, sucked and pressure-fed by the blower 31, and fed to a bran collecting device such as a cyclone (not shown) via the bran discharge pipe 32.

In this embodiment, the case of the grind type vertical axis type grain refiner has been described, but it may be used for the friction type vertical axis type grain refiner. Further, the grain supply device is not limited to the screw conveyor, it can be configured of the present invention as long as it can be forcibly supplied the grain using power,
For example, a flexible spring conveyor, a scrape conveyor, a rotary conveyor, or a reciprocating piston type may be used, and the direction may not be horizontal, but may be vertical or inclined.

[0015]

According to the vertical axis grain refiner of the present invention,
The grain feeder is forcibly fed using power, and the resistance plate is located above the end of the grain chamber and is urged in a direction substantially perpendicular to the vertical axis. Unlike the grain supply of the grain supply, the supply amount does not change and can be constantly supplied, and even if the resistance is changed for the purpose of adjusting the whitening degree, the supply amount does not change. It can prevent irritating due to lack of supply to the plant, and can accurately and easily adjust to the desired milling degree with the set flow rate (capacity). Furthermore, the pressure in the grain chamber is uniform even in the circumferential direction, and irritating Preventing the occurrence becomes more effective.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a grinding type vertical axis grain refiner embodying the present invention.

FIG. 2 is a side sectional view showing a conventional example.

[Explanation of symbols]

 1 Vertical Axis Type Grain Mill 2 White Grinding Cylinder 3 Vertical Axis 4 Spiral Rotator 5 Spiral Rotator 6 Grain Chamber 7 Grain Supply Section 8 Grain Discharge Section 9 Base 10 Main Motor 11 Main Motor 12 Drive Pulley 13 Passive Pulley 14 Belt 15 Electric Motor Stand 16 Electric Motor 17 Drive Pulley 18 Grain Feeding Device 19 Shaft 20 Passive Pulley 21 Belt 22 Spiral 23 Whiteness Adjusting Device 24 Resistance Plate 25 Discharge Gutter 26 Scrape Conveyor 27 Supply Gutter 28 Scraper 29 Conveyor Chain 30 Gathering Chamber 31 Blower 32 Waste exhaust pipe 33 Screw conveyor 34 Vertical axis grain refiner 35 Perforated wall debarking white tube 36 Vertical axis 37 Spiral trochanter 38 Fine trochanter 39 Supply trough 40 Grain supply trough 41 Milling room 42 Grain discharge part 43 Discharge gutter

Claims (1)

[Claims] 1. A vertical shaft is provided rotatably in an upright milling cylinder, and a fine grain trochanter is connected to an upper portion of the vertical shaft and a spiral trochanter is connected to a lower end of the fine grain trochanter to form a spiral trochanter, respectively. Wearing it to form a space between the milling barrel and the spiral trochanter and grain trochanter into a grain mill, and at the bottom of the grain mill, there is a grain supply unit, and at the upper part, a whiteness adjusting means composed of a resistance plate. In a vertical type grain refiner each of which is provided with a grain discharge part, the grain supply part is connected to a grain supply device for forcedly supplying the grain , and the resistance plate is provided.
Is located above the end of the grain chamber and is aligned with the vertical axis.
A vertical axis type grain refiner characterized by being installed in a direction orthogonal to the vertical axis.