JPS631903B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertical grinding type grain milling device.

The present invention automatically adjusts the load on the milling chamber of a vertical grinding grain milling device, thereby theoretically making it possible to obtain a vertical grinding grain milling device with less uneven grinding.

Compared to horizontal grain milling equipment, vertical grain milling equipment has the advantage of being able to mill rice in its original form and has the advantage of significantly lower occurrence of broken rice, but it does not require much pressure. Since it is a grain milling device that does not have much access, it has a drawback in that its milling capacity is extremely low (about 1/5th the efficiency of horizontal types).

For example, the device shown in FIG. 1 is a horizontal grain milling device, in which a grain feeding spiral B and a milling trochanter C are attached to a horizontal shaft A, and this is surrounded by a milling tube D and a grain feeding tube D'.
Brown rice is supplied from the supply port E, a resistor lid G is attached to the discharge port F, and the rice is polished by rotating the horizontal axis A. It has the advantage that polished rice can be obtained immediately because it is milled under great pressure to prevent discharge, but as mentioned above, it has the disadvantage that a lot of broken rice is produced due to forced milling. There is. Not only that, because the mill is horizontal, the rice grains are distributed thickly in the lower layer of the milling cylinder due to their own weight, and the upper layer of the milling chamber is thinner, resulting in uneven grains.

The grain milling device shown in Figure 2 is a vertical grinding type grain milling device that is often used in sake brewing factories. This is a grinding trochanter, and the vertical axis H does not protrude above the trochanter I, but only downward.The pulley, etc. is fixed below the trochanter I and is driven by the lower side of the trochanter I. I try to do that. When this vertical grain milling device supplies rice grains a from the supply port J at the top,
The rice grains are ground while being stirred horizontally by a polishing grinding trochanter (grinding wheel made of diamond sand) I that rotates horizontally, and are discharged from a discharge port K formed at the bottom. is located on the side of the milling room M rather than at the lower center of the milling room, so that the rice grains accumulated in the area indicated by the arrow L on the opposite side of the outlet K are difficult to be discharged. That is, since the vertical shaft H protrudes below the trochanter I, the discharge port K can only be opened on the side of the milling room M because the vertical shaft H gets in the way. Of course, grinding trochanter I
Since it rotates at a tremendous circumferential speed of 2000 feet per minute, the rice grains in the area indicated by the arrow L are also horizontally agitated by the grinding rotor and discharged from the outlet K by centrifugal force. However, if the resistance of the resistor cover G attached to the outlet K of the grain milling device shown in FIG. That is, the resistance lid G is only a sham resistance device and is used with almost no resistance applied, making it an extremely low-efficiency grain milling device. Although it has been explained that the outlet K can only be opened on the side of the milling room M due to the presence of the vertical shaft H, the grain milling device shown in FIG. 3 has been improved in this respect.

However, the vertical grain milling device shown in FIG. 3 has a drawback in feeding. That is, the vertical axis H does not protrude downward from the grinding rotor I, but only upwardly, and the pulley N is attached thereto, creating an upper drive structure. Non-grinding trochanter I
The opening can be opened directly below the center of the
Collected rice grains like the arrow L shown in FIG. 2 do not occur. However, there is a pulley N at the supply port J.
As a result, the rice grain supply operation is being hindered. In Figure 3, rice grains are supplied into the milling chamber through pulley N, but since pulley N is rotating at a fairly high speed, a smooth flow of rice grains cannot be expected, and there is no way to stop it. , since the part indicated by arrow A shifted to one side of the whitening room M is opened and supplied from there, the whitening room is supplied to the whitening room on one side.
In that respect, it cannot be avoided.

Therefore, the present invention is a vertical grinding type grain milling device that combines the following requirements a to g.

a. Attach the white grinding rotor to the vertical rotating shaft.

b. Surrounding the outer periphery of the polishing grinding trochanter with a bran removal polishing cylinder to form a polishing chamber.

c. The bran removal and polishing cylinder is suspended by a spring so that it can move up and down depending on the load.

d. A taper portion is formed at the lower end of the white grinding rotor, the diameter of which decreases as it goes downward.

e Attach a resistor having a tapered resistance surface whose diameter becomes smaller toward the bottom at the lower end of the white bran removal cylinder.

f. An annular discharge passage centered around the rotating shaft is formed between the tapered portion and the tapered resistance surface.

g The resistor can be adjusted up and down using the adjustment screw.

To explain with the drawing, 1 is a lower frame, and an upper frame 2 is stacked on top of the frame 1. The upper frame 2 has a circular or angular vertical cylindrical cross-sectional shape. Window holes 3 are formed at a plurality of locations on the circumferential side of the frame 2, and the window holes 3 are closed by a removable lid 4. The upper end portion (or upper wall portion) of the upper frame 2 is provided with an annular collar portion 5 that protrudes inward from the outer periphery.
Install. A support 7 of a supply hopper 6 is engaged with and placed on the upper surface of the collar 5. The flange portion 5 includes:
In addition to the supply hopper 6, a spring bearing ring 8 is attached. The outer peripheral edge 9 of the ring 8 engages with the upper inner edge of the flange 5, the other part faces the space 10 in the upper frame 2, and a spring receiving protrusion 11 is attached to the lower surface. ing. Reference numeral 12 denotes a manually operated lever, which is fixed to the spring receiver ring 8. When the lever 12 is held and moved horizontally, the ring 8 can be rotated. Reference numeral 13 designates an engaging portion for fixing the lever 12 once the lever 12 has been rotated to a desired position. The lower side of the supply port 14 of the hopper 6 is formed in an inverted hopper shape, the lower end of which expands horizontally, and forms a horizontally expanded portion 15.
form. 16 is a vertical sliding tube (or an upper metal fitting of a polishing tube). The upper end 17 of the sliding tube 16 is formed so as to surround the horizontally expanded portion 15 and not to fall below the horizontally expanded portion 15 even if the sliding tube 16 moves down to the maximum. . Sliding tube 16
is formed into a vertical cylinder with the same inner diameter throughout. A shaft portion 19 is provided on the outer peripheral surface of the vertical sliding cylinder 16, a shaft portion 21 corresponding to the shaft portion 19 is attached to the upper frame 2, and an oblique rod 20 is provided between the shaft portion 19 and the shaft portion 21. Installed. The rod 20 is formed into a flexible joint. A spring 22 is attached between the lower end of the rod 20 and the spring receiving protrusion 11 of the spring receiving ring 8. As is clear from FIG. 4, when the manual operation lever 12 is rotated in the horizontal direction and the spring receiver ring 8 is rotated in a direction that stretches the spring 22, the elasticity of the spring 22 becomes stronger. A control valve 23 is attached to the hopper 6 to adjust the size of the supply passage 18. The control valve 23 is the lever 2
4' at one end. The vertical sliding tube 16
The upper end of the polishing cylinder 24 is connected to the lower end of the polishing cylinder 24 . The polishing cylinder 24 is formed into a bran removal cylinder, and is made of a punched perforated plate. Inside the polishing cylinder 24,
A white grinding trochanter 25 is attached. The white grinding roller 25 is fixed to the upper end of a vertical rotating shaft 26. The rotating shaft 26 does not protrude above the trochanter 25. The outer periphery of the white grinding roller 25 is formed into an inverted truncated conical shape. When the white grinding rotor 25 is a blast rotor, the rotating shaft 26 is a hollow pipe. At the lower end of the white grinding rotor 25, a step 27 is formed whose diameter gradually decreases as it goes downward, and a taper section 28 that becomes smaller in diameter as it goes downward is formed at the bottom of the step 27. The stepped portion 27 is formed from a part of the white grinding roller 25, and the tapered portion 28 is formed from metal. The upper end of the small diameter portion 29 is joined to the lower end of the tapered portion 28 . The small diameter portion 29 has a constant height in the vertical direction, and a guiding surface 30 is formed at its lower end. A lower frame 31 is attached to the lower end of the polishing tube 24. Lower frame 31
The cross section is shaped like a horizontal T-shape,
It has a vertical frame 32 and a horizontal frame 33. Three to four vertical through holes 34 are bored in the horizontal frame 33, and upper and lower adjustment screws 35 are inserted into the through holes 34. The screw 3
5 has a head 36 projecting upward forming a gap 37, and a spring 38 is wound around the gap 37. 39 is a collar, and 40 is a threaded portion at the bottom thereof. The threaded portion 40 is screwed into the resistor 41. The resistor 41 has a horizontal portion 4 facing the horizontal frame 33.
2, and a sliding part 4 that slides up and down the outer periphery of the vertical frame 32.
3, a tapered resistance surface 44 facing the tapered portion 28, and an enlarged portion 47 that slides into contact with the inner surface 46 of the guide cylinder 45. A discharge passage X is formed between the tapered portion 28 and the tapered resistance surface 44, and the passage X becomes narrower toward the bottom. 48 is a suction blade;
49 is the whitening room.

Next, we will discuss the effect.

Since the structure of the embodiment of the present invention is as described above, when the control valve 23 is adjusted to a desired opening state by manually operating the lever 24', the supply passage 18 is opened to a desired area, and the supply passage 18 is opened to a desired area. The rice grains flow into the whitening chamber 49. However, since the milling chamber 49 is empty immediately after the start of work, the rice grain resistor 41 that falls forcefully collides with the tapered resistance surface 44, is reflected from the resistance surface 44, hits the taper part 28, and is discharged from the discharge passage X. , and then it is ejected. However, as the supply progresses, the passage through the discharge passage X remains to some extent, so that the whitening chamber 49 is filled with the whitening chamber 49, and in this state, the whitening and grinding roller 25 removes the whitening.

In this case, if the relationship between the supply passage 18 and the discharge passage X is such that the supply passage 18>the discharge passage X,
The inside of the whitening chamber 49 is gradually filled to a point where it becomes clogged.
Eventually, the grain is on the verge of collapse. In this state, the load on the whitening chamber 49 becomes very large, so the whitening cylinder 24 will rotate in the same direction.

However, as shown in FIG. 4, the polishing tube 24 is
A vertical sliding cylinder 16 is fixed to the upper part, and since the sliding cylinder 16 is suspended by about three to four rods 20, and because the rods 20 are inclined, the polishing cylinder 24 is It moves downward at the same time as it rotates, and the polishing tube 2
The resistor 41 attached to the lower end of 4 also moves downward, so that the discharge passage X formed by the tapered portion 28 and the tapered resistance surface 44 is enlarged, and its relationship with the supply passage 18 is reversed.
This reduces the load.

However, as described above, the resistor 41 shown in the enlarged view of FIG.
Although it rolls as shown in the figure, it can be finely adjusted by rotating the adjusting screw 35 as shown in FIG.

In the present invention, a white grinding rotor 25 is attached to a vertical rotating shaft 26.

b The outer periphery of the polishing grinding roller 25 is removed using the bran polishing cylinder 2.
4 to form a whitening chamber 49.

c The bran removing and polishing cylinder 24 is suspended by a spring 22 so as to move vertically depending on the load.

d A taper portion 28 is formed at the lower end of the white grinding roller 25, the diameter of which decreases as it goes downward.

e. A resistor 41 having a tapered resistance surface 44 whose diameter becomes smaller toward the bottom is attached to the lower end of the bran removal and polishing cylinder 24.

f. An annular discharge passage X centered around the rotating shaft 26 is formed between the tapered portion 28 and the tapered resistance surface 44.

g The resistor 41 can be adjusted up and down using the adjustment screw 35.

(1) When the load suddenly increases, the milling chamber volume and discharge passage are automatically enlarged to prevent rice grains from clogging.

(2) Since the rotating shaft does not protrude above the fine grinding rotor, it can be supplied from directly above the center as in the known example shown in FIG.

(3) Even if the rotating shaft protrudes below the fine grinding rotor, since the discharge passage is configured as described above, the discharge can be carried out from right below the center as in the known example shown in FIG.

(4) Since a polishing grinding trochanter is used, original shape polishing is possible.

(5) Since the resistor can be moved up and down using the adjustment screw,
Fine adjustment of the discharge passage is possible.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the horizontal pressure type grain milling equipment, Figure 2 is a sectional view of the vertical non-pressure type grain milling equipment, Figure 3 is a sectional view of the same non-pressure type grain milling equipment, and Figure 4 is the overall view. 5 is a cross-sectional side view of the milling chamber and hopper section of FIG. 4, FIG. 6 is a longitudinal side view of the whole, FIG. 7 is an enlarged view of the discharge passage, and FIG. The figure shows the state in which only the resistor is moved down, Figure 9 shows the state in which the polishing tube and the resistor are moved down at the same time, Figure 10 is a cross-sectional view of the collar, and Figure 11 is the side view of the spring receiver ring. 12 are cross-sectional views of the enlarged portion 15. As shown in FIG. Explanation of symbols, 1...Lower frame, 2...Upper frame, 3...Window hole, 4...Lid, 5...Brim part,
6... Supply hopper, 7... Support, 8... Spring bearing ring, 9... Outer periphery, 10... Space, 11
... Spring receiving projection, 12 ... Manual operation lever, 13
...Engagement part, 14...Lower end, 15...Horizontal expansion part, 16...Vertical sliding tube, 17...Upper end, 18...
... Supply passage, 19 ... Shaft, 20 ... Rod, 2
1...Shaft portion, 22...Spring, 23...Control valve, 2
4...Blank removal polishing cylinder, 25...Refining grinding trochanter, 2
4'... Lever, 26... Rotating shaft, 27... Step part,
28... Taper part, 29... Small diameter part, 30...
... Taper guide surface, 31 ... Bottom frame, 32 ... Vertical frame, 33 ... Horizontal frame, 34 ... Through hole, 35 ... Adjustment screw, 36 ... Head, 37 ... Gap, 38 ...
Spring, 39... collar, 40... screw part, 41... resistor, 42... horizontal part, 43... sliding part, 44...
...Taper resistance surface, 45...Induction tube, 46...
Inner surface, 47... Enlarged portion, 48... Suction blade, 49...
...Whitening room, X...Discharge passage, a...Rice grains.

Claims (1)

[Scope of Claims] 1. A vertical grinding type grain milling device comprising a combination of the following requirements a to g. a. Attach the white grinding rotor 25 to the vertical rotating shaft 26. b The outer periphery of the polishing grinding roller 25 is removed using the bran polishing cylinder 2.
4 to form a whitening chamber 49. c The bran removing and polishing cylinder 24 is suspended by a spring 22 so as to move vertically depending on the load. d A taper portion 28 is formed at the lower end of the white grinding roller 25, the diameter of which decreases as it goes downward. e. A resistor 41 having a tapered resistance surface 44 whose diameter becomes smaller toward the bottom is attached to the lower end of the bran removal and polishing cylinder 24. f. An annular discharge passage X centered around the rotating shaft 26 is formed between the tapered portion 28 and the tapered resistance surface 44. g The resistor 41 can be adjusted up and down using the adjustment screw 35.