JPH01258750A - Grain milling machine of vertical shaft type friction cutting system - Google Patents

Abstract

PURPOSE:To perform sufficient pulsating action and stirring action and to prevent uneven pounding by forming both a perforated-wall polishing cylinder and a grain milling rotor into plural sets of size, different in diameter and slowly slantingly forming the rotary front sides of the stirring projections. CONSTITUTION:Both a spiral rotor 4 and the grain milling rotors 5A, 5B having the stirring projections 36 are axially fitted to a main shaft 3 which is freely rotatably provided in a vertically arranged perforated-wall bran removal polishing cylinder 2. The lower end of a grain milling chamber equipped with the cylinder 2 and the grain milling rotors 5A, 5B as a principal part is connected with a grain feed part 7 and the upper end is connected with a grain discharge part 8 respectively. Further, the cylinder 2 and the rotors 5A, 5B are formed into plural sets of size, different in diameter. The rotary front sides A of the stirring projections 36 are slowly slantingly formed. As a result, sufficient pulsating action end stirring action are performed and thereby uneven pounding can be prevented.

Description

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

[Conventional technology]

Conventional vertical shaft type 1'? The scraping type grain milling machine will be explained with reference to FIG.

Reference numeral 37 is a vertical shaft type thickness cutting type grain milling machine, in which a main shaft 39 is rotatably provided in a perforated perforated bran removing and polishing cylinder 38.
A spiral trochanter 40 and a friction milling trochanter 41 are mounted on the shaft, and the lower part of the grain milling chamber 42 is connected to a grain supply part 43 and the upper part to a grain discharge part 44, respectively. Reference numeral 45 is a resistance plate that presses the grain discharge portion 44 , and reference numeral 46 is a resilient force adjusting plate of a spring 47 that presses the resistance plate 45 .
is connected to a discharge port 49 via a discharge gutter 48. Further, the discharge gutter 48 provided with the opening/closing plate 50 and the return port 51 are connected through a reducing cylinder 52.

The grains supplied to the grain supply section 43 are supplied to the grain milling chamber 42 by the spiral trochanter 40, where they are not moved upwards, but are milled and drained. The milled grains are discharged from the grain discharge section 44 while resisting the resistance plate 45, and are discharged from the grain discharge section 44.
48 and is discharged from the machine through four discharge ports. Further, since unmilled grains are generated at the start of milling and at the end of milling, the opening/closing plate 50 is raised and the unmilled grains are supplied to the return port 51 through the reducing tube 52 and re-milled.

However, in the conventional vertical shaft type friction cutting type grain milling machine as described above, the pressure in the circumferential direction in the grain milling chamber 42 is equal, and although there is no locally excessive pressure, the pressure is equal in the circumferential direction. Since pressure is applied to the rice grains, the rice grains do not pulsate, making it difficult to achieve sufficient stirring action.

As a result, some of the grains are incompletely milled and are discharged along with the friction milling trochanter 41, resulting in uneven milling.Furthermore, if the axial length of the milling chamber, that is, the height, is increased, the lower part of the grain is There was a problem in that pressure was applied to the rice grains, further inhibiting the pulsation and increasing the unevenness of pounding.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned problems and has a vertical shaft type 1 that can prevent uneven mixing with sufficient pulsation and stirring action!
! The purpose of the present invention is to provide a grinding grain milling machine.

Means for Solving Problem C) In order to achieve this object, the present invention has the following configuration.

The first invention is a porous-walled rice bran removal and polishing cylinder, in which a spiral rotor and a grain milling trochanter having stirring protrusions are mounted on a main shaft rotatably provided in a porous-walled rice bran removal and polishing cylinder. The lower end of the grain milling chamber, whose main part is a grain trochanter, is connected to the grain supply section, and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain trochanter are adjusted to the size of multiple sets. A vertical shaft type friction cutting type grain milling machine is formed by forming the grain mill. The front side of the stirring protrusion is formed to have a gentle slope.

In the second invention, a spiral rotor and a grain milling trochanter having stirring protrusions are mounted on a main shaft rotatably provided in an upright porous-walled rice bran removal and polishing cylinder, and the porous-walled rice bran removal and polishing cylinder is combined with a grain polishing cylinder. The lower end of the grain milling chamber, whose main part is a grain trochanter, is connected to the grain supply section, and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain trochanter are adjusted to the size of multiple sets. A vertical shaft type friction cutting type grain milling machine is formed by forming the grain mill. The stirring protrusions of adjacent friction grain milling trochanters are arranged at positions that are not on the same straight line.

In the third invention, a spiral rotor and a grain milling trochanter having a stirring protrusion are mounted on a main shaft rotatably provided in an upright porous-walled rice bran removal and polishing cylinder, and the porous-walled rice bran removal and polishing cylinder is combined with a grain polishing cylinder. The lower end of the grain milling chamber, whose main part is a grain trochanter, is connected to the grain supply section, and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain trochanter are adjusted to the size of multiple sets. A vertical shaft type 19 scraping type grain milling machine is formed. A spiral trochanter is provided between the adjacent friction grain trochanters.

[For production]

In the first invention, the grains supplied from the grain supply section of the vertical shaft type friction cutting type grain milling machine to the spiral trochanter are sent by the spiral trochanter to the porous walled bran removal milling cylinder and the grain milling trochanter. The grain is milled in a milling room whose main parts are: The milled grains are discharged from the grain discharge section and sent to the next process. At that time, the pressure of the grain fluctuates at the different diameter part between the milling tube and the grain milling trochanter, and the grain is subjected to large pulsation and stirring action and revolves, so that all the grains are in the grain milling room. Receive sufficient ejaculation action. In addition, since the front side of the stirring protrusion is formed with a gentle slope,
The grains do not revolve at the same speed as the stirring protrusions, so that they are not discharged along the protrusions and are effectively milled.

In the second invention, the vertical shaft type JIEI! The grains supplied from the grain supply section of the J-cutting grain milling machine to the spiral trochanter are sent by the spiral trochanter to a grain milling chamber whose main parts are a porous-walled bran removal tube and a grain milling trochanter. It is pumped in. The milled grains are discharged from the grain discharge section and sent to the next process. At that time, the pressure of the grain fluctuates between the milling cylinder and the grain milling trochanter, and the grains are subjected to large pulsating and stirring actions and revolve, so that all the grains are fully absorbed in the grain milling room. Receives a semen effect. Furthermore, since the stirring protrusions are arranged at positions that are not on the same straight line, the grains are milled under a greater stirring action, and uneven pounding does not occur.

In the third invention, the grains supplied from the grain supply section of the vertical shaft type friction cutting type grain milling machine to the spiral trochanter are sent by the spiral trochanter to the porous walled bran removing milling cylinder and the grain milling trochanter. The grain is milled in a milling room whose main parts are: The milled grains are discharged from the grain discharge section and sent to the next process. At that time, the pressure of the grain fluctuates between the milling cylinder and the grain milling trochanter, and the grains are subjected to large pulsating and stirring actions and revolve, so that all the grains are fully absorbed in the grain milling room. Receives a semen effect. In addition, the adjacent J1! Since the spiral trochanter is provided in the middle of the grain milling trochanter, the grain weight of the upper V1 grain grain is reduced and the occurrence of grain breakage due to over-milling in the lower grain milling room can be prevented.

〔Example〕

Embodiments of the invention will be described with reference to the drawings. 1st
The figure is a side sectional view of a vertical shaft type friction cutting type grain milling machine. code 1
is a vertical shaft type friction cutting type grain milling machine, in which a main shaft 3 is rotatably provided in an upright porous-walled bran removal and polishing cylinder 2, a spiral rotor 4 is provided at the bottom of the main shaft 3, and a lower part is provided with a stirring protrusion 36 at the top. Friction grain trochanter 5
A and the upper friction grain milling trochanter 5B are each mounted on a shaft.

The porous-walled bran removal milling cylinder 2 and the friction grain milling rollers 5A and 5B form a lower grain milling chamber 6A and an upper grain milling chamber 6B, and the lower grain milling chamber 6A
The lower part of the upper grain milling chamber 6B is connected to the grain supply part 7, and the upper part of the upper grain milling chamber 6B is connected to the grain discharge part 8, respectively. In addition, friction 11 trochanter 5A,
The rotation front side portion Δ of the stirring protrusion 36 of 5B is formed with a gentle slope.

A motor pulley 10 of a main electric motor 9 and a pulley 11 of a main shaft 3 are connected by a V-belt 12.

The grain discharge section 8 is provided with a resistance plate 14 connected to an automatic resistance adjustment device 13 that regulates the grains discharged from the grain discharge section 8. The resistance plate 14 is connected to a mountain shaft 16 via a lever 15, and the mountain shaft 16 is interlocked and connected to a forward and reverse rotating electric motor 17. When the mountain shaft 16 is horizontally moved by the forward/reverse rotating electric motor 17, the lever 15 rotates around the resistance plate shaft 18, and the resistance plate 1
4 rotates toward and away from the grain discharge section 8. A downflow gutter 19 is provided connected to the grain discharge section 8, and a discharge gutter 2 is connected to the flowdown gutter 19.
Concatenate 0.

A pulley 25 connects the feed hopper 21 to a grain feeding device 22 and is attached to a conveyor shaft 24 around which a helix 23 is wound.
and a pulley 27 of an electric motor 26 are connected by a V-belt 28, and the grain feeding device 22 is connected to the grain feeding section 7.

A large number of ventilation holes 29 are formed in the main shaft 3, and the main shaft 3 is connected to a blower device 30. Reference numeral 31 indicates a blowing hole provided in the friction grain milling rollers 5A and 5B, and the bran removal chamber 32 is connected to a cyclone (not shown) or the like via a bran removal duct 33.

Next, the operation of the above configuration will be explained. The grains are sent to the grain supply device 22 via the supply hopper 21, and when the main motor 9 and the motor 26 are respectively driven, the grains are supplied to the helical rotor 4 by the helical body 23, and the grains are fed by the helical rotor 4. It is transported to the lower grain milling room 6A. In the lower grain milling chamber 6A, the grain is milled by the milling action generated by the rotation of the lower friction grain milling trochanter 5A, and then sent to the upper grain milling chamber 6B where it is similarly milled by the upper grain milling trochanter 5B. Lower grain milling room 6A
When the grain is sent from the grain milling chamber 6 to the upper grain milling chamber 6, the pressure decreases once at the boundary, and then increases again in the lower grain milling chamber 6B, causing pressure fluctuations in the grain milling chambers 6A and 6B. Therefore, sufficient milling action is performed in the grain milling chambers 6A and 6B, and uneven salting does not occur due to the discharge of unmilled grains, and an effective frictional milling action can be performed at all times, increasing the milling efficiency. rises.

Further, since the rotation front side portion A of the stirring protrusion 36 is formed with a gentle slope, the grains quickly escape from the stirring protrusion 36 when subjected to the stirring action. Therefore, the grains can be effectively milled without being discharged along the stirring projections 36.

In the grain milling rooms 6A and 6B, from the blower 30 to the ventilation port 29
The rice bran removal effect is performed by the rice bran removal air that is ejected from the blowhole 31 through the process. Dust such as bran generated by the milling action in the grain milling rooms 6A and 6B is discharged from the through hole of the porous-walled bran removing and polishing cylinder 2 to the bran removing palm 32, and is passed through the bran removing duct 33 to the cyclone (
(not shown), etc., are sent.

The milled grains reach the grain discharge section 8, and the outflow is suppressed by the resistance plate 14 of the automatic resistance adjustment device 13, and the resistance plate 1
The pounding accuracy is adjusted by changing the suppression of 4. Then, the grains flow out against the resistance plate 14 and flow down 8I! 19
and is discharged outside the machine via the discharge gutter 20.

FIG. 3 shows another embodiment, in which the stirring protrusions 36 of the upper friction milling trochanter 5B and the stirring protrusions 36 of the lower friction MFU trochanter are arranged at positions that are not on the same straight line. Therefore, the grains that have been stirred and milled in the lower grain milling chamber 6A are quickly subjected to a greater stirring 17 action by the stirring protrusions 36 in the upper grain milling chamber 6B, so that uneven salting does not occur.

FIG. 4 shows another embodiment, in which a spiral trochanter 34 is provided between the upper 1f grain grinding trochanter 5B and the lower friction grain trochanter 5A.
will be established. The grains milled in the lower grain milling chamber 6A are forcibly sent down by the spiral trochanter 34, and are milled again in the upper grain milling chamber 6B. The weight of the grains in the upper grain milling chamber 6B is reduced by the upward movement of the spiral trochanter 34, so it is possible to prevent the occurrence of grain breakage due to over-milling in the lower grain milling chamber 6A.

In the embodiment of the present invention, two grain milling trochanters and porous-walled bran removal cylinders with different diameters are used, but the number is not limited to two, and a plurality of them may be used. Further, in this embodiment, the diameter of the lower grain milling trochanter is formed to be larger than the diameter of the lower grain milling trochanter, but the lower part may be formed to be larger and the upper part to be smaller.

(Effect of the invention) According to the vertical shaft type friction cutting type grain milling machine of the present invention, the first
In the invention, the diameters of the porous-walled milling tube and the grain milling trochanter are formed into multiple sets of sizes, and the front side of the rotation of the stirring protrusion is formed with a gentle slope, so that the boundary between the upper and lower grain milling chambers is The pressure increases once and then immediately decreases, causing pressure fluctuations in the grain milling chamber and sufficient agitation of the grains. In addition, since the grain milling rotors with different diameters rotate at the same rotation speed, they have different circumferential speeds and receive different milling effects. Therefore, uneven salting does not occur due to incompletely milled grains being discharged. In addition, since the rotating front side of the stirring protrusion is formed with a gentle slope, the grains do not revolve at the same speed as the stirring protrusion, so that the grains are not discharged along the protrusion and are subjected to effective stirring action. I can do it.

In the second invention, since the stirring protrusions of the adjacent I'J grain milling trochanter are arranged at positions that are not on the same straight line, the grain is sent from the lower grain milling room to the upper grain milling room. The grains thus treated are subjected to a greater stirring and milling action, which can prevent uneven salting.

In the third invention, since the spiral trochanter is provided between the adjacent friction grain milling trochanters, the weight of the grains in the upper grain milling chamber is reduced by the upward action of the spiral trochanters, and the weight of the grains in the upper grain milling chamber is reduced. It is possible to prevent the occurrence of crushed grains etc. due to over-milling in the grain milling room. Furthermore, the grains are milled under a large pulsation action, which prevents uneven salting.

[Brief explanation of the drawing]

Figure 1: A side sectional view of a vertical shaft type friction cutting grain milling machine embodying the present invention; Figure 2 is a front sectional view of the friction grain milling trochanter; Figures 3 and 4 are the friction grain milling trochanter. FIG. 5 is a side view of a conventional example. 1... Vertical shaft type SM cutting type grain milling machine, 2... Porous wall removal milling machine, 3... Main shaft, 4... Spiral trochanter, 5A...
Lower friction grain trochanter, 5B... Upper friction grain trochanter, 6A
...Lower grain room, 6B...Upper vJ grain room, 7...
Grain supply section, 8... Grain discharge section, 9... Main motor,
10...Motor pulley, 11...Pulley, 1
2...V belt, 13...Automatic resistance adjustment device, 14
...resistance plate, 15...; lever, 16... tooth ring,
17... Forward/reverse rotating electric motor, 18... Resistance plate shaft, 19
... Downflow gutter, 20... Discharge gutter, 21... Supply hopper, 22... Grain feeding device, 23... Spiral body, 2
4...Conveyor shaft, 25...Pulley, 26...
Electric af1.27...Pulley, 28...V belt,
29... Ventilation port, 3o... Air blower, 31... Blower port, 32... Bran removal chamber, 33... Bran removal duct, 34
... Spiral trochanter, 35 ... Lid, 36 ... Stirring protrusion, 37 ... Vertical shaft type friction cutting type grain milling machine, 38 ... Porous wall bran removal and polishing cylinder, 3 pieces ...・Main shaft, 40... spiral trochanter,
41...Friction milling trochanter, 42...Grain milling room, 43...
- Grain supply section, 44... Grain discharge section, 45... Resistance plate, 46... Elastic force adjustment plate, 47... Spring,
8... Discharge gutter, 49... Discharge port, 50... Opening/closing plate, 51... Return port, 52... Reduction cylinder.

Claims (3)

[Claims] (1) A grain milling trochanter having a spiral rotor and a stirring protrusion is mounted on a main shaft rotatably provided in an upright porous-walled rice bran removal and polishing cylinder, and the porous-walled rice bran removal and polishing cylinder and grain milling machine are The lower end of the grain milling chamber is connected to the grain supply section and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain milling trochanter are set to different sizes. 1. A vertical shaft type friction cutting type grain milling machine, characterized in that a rotation front side of the stirring protrusion is formed with a gentle slope. (2) A grain milling trochanter having a spiral rotor and a stirring protrusion is mounted on a main shaft rotatably provided in an upright porous-walled rice bran removal and polishing cylinder, and the porous-walled rice bran removal and polishing cylinder and grain milling machine are The lower end of the grain milling chamber is connected to the grain supply section and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain milling trochanter are set to different sizes. In the vertical shaft type friction cutting type grain milling machine, each stirring protrusion of the adjacent friction grain milling trochanter is
A vertical shaft type friction cutting type grain milling machine characterized by being arranged at positions that are not on the same straight line. (3) A grain milling trochanter having a spiral rotor and a stirring protrusion is mounted on a main shaft rotatably provided in a perforated porous-walled rice bran removal and polishing cylinder, and the porous-walled rice bran removal and polishing cylinder and grain milling machine The lower end of the grain milling chamber is connected to the grain supply section and the upper end is connected to the grain discharge section, and the diameters of the perforated wall milling tube and the grain milling trochanter are set to different sizes. A vertical shaft type friction cutting type grain milling machine characterized in that a spiral rotor is provided between adjacent friction grain milling rotors in the vertical shaft type friction cutting type grain milling machine.