JPS643535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a discharge device for a vertical milling device.

(Prior art) This application is filed under Japanese Patent Application No. 56-88357 (Japanese Patent Publication No. 62-47066)
This is a divisional application.

The device shown in Fig. 1 is a known horizontal grain milling device, in which a grain feeding spiral B and a milling trochanter C are attached to a horizontal axis A, and this is surrounded by a milling tube D and a grain feeding tube D' to mill grains. A chamber and a grain feeding room are formed, brown rice is supplied from the supply port E, a resistance lid G is attached to the discharge port F, and the rice is polished by rotating the horizontal axis A.

The example shown in Fig. 2 is a well-known vertical grain milling device that is often used in sake brewing factories. The upper end of the vertical shaft H is formed lower than the supply port J and protrudes only downward, and the pulley and the like are fixed below the grinding roller I and driven thereunder.

In the vertical grain milling machine shown in Fig. 3, the vertical shaft H does not project downward to the grinding roller I, but only upwardly, and a pulley N is attached thereto, resulting in an upper drive structure. .

(Problems to be Solved by the Invention) The vertical grain milling device shown in Fig. 1 mills rice while suppressing the strong feeding action of the grain feeding spiral B with the resistive lid G to prevent it from being discharged. However, as mentioned above, it has the disadvantage that a lot of broken rice is produced due to unreasonable milling. Not only that, but because it is horizontal, the rice grains are distributed thickly in the lower layer of the milling chamber due to their own weight, and the upper layer of the milling chamber is thinner, resulting in uneven grains. However, because the rice milling efficiency is quite high and the power transmission mechanism can be easily formed, almost all rice milling factories today use horizontal grain milling equipment and vertical grain milling equipment. The reality is that there are almost no rice milling factories.

In the vertical grain milling device shown in Fig. 2, when rice grains a are fed, the rice grains a are milled while being horizontally agitated by a horizontally rotating grinding wheel (grinding wheel of diamond sand) I, and then passed through a discharge port formed at the bottom. However, the defect of this vertical grain milling device is that the location of the discharge port K is not at the bottom of the center of the milling room M.
The point is that it is opened on the side of the whitening room M (on the left side in the figure), so that the rice grains accumulated in the part indicated by the arrow L on the opposite side of the discharge port K are difficult to be discharged.

Of course, since the grinding trochanter I rotates at a high circumferential speed of 2,000 feet per minute, the rice grains in the area indicated by the arrow L are also horizontally agitated by the grinding trochanter and are removed from the discharge port K by centrifugal force. However, if the resistance of the resistance cover G attached to the discharge port K is made too strong, it will suddenly become clogged, causing an accident in which the grinding rotor I will not rotate at all.

In other words, the resistor cover G is only a sham resistor device, and is used in an almost non-resistance state where almost no resistance is applied. Therefore, although the efficiency is extremely low, since the rice grains are ground evenly, so-called original shape polishing is possible, so this rice mill is suitable for sake brewing factories that mill 25% to 40%, so it is popular as a rice polishing machine for sake brewing. .

The vertical grain milling device shown in FIG. 3 overcomes the defect of the vertical grain milling device in FIG. 2 that rice grains accumulate in the area indicated by the arrow L. In other words, the discharge port K can open directly below the center of the grinding trochanter I, and the polishing chamber M
It has the characteristic that the rice grains inside are uniformly discharged from all around the circumference, so that the rice grains that remain as shown by the arrow L in Fig. 2 do not occur. However, since the pulley N is located at the supply port J, the operation of supplying rice grains is 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 inflow action cannot be expected, and rice grains have to be milled. Since the part indicated by arrow A shifted to one side of the chamber is opened and the supply is made from there, the supply is offset to the polishing cylinder, which is unreasonable.

(Means for Solving the Problems) Accordingly, the present invention fixes a whitening trochanter 24 to a vertical rotating shaft 25, and concentrically surrounds the outer periphery of the whitening trochanter 24 with a vertical whitening tube 23. A whitening chamber 42 is formed between the whitening trochanter 24 and the whitening cylinder 23, a supply port 14 is formed right above the center of the whitening chamber 42, and the upper end of the rotating shaft 25 is lower than the supply port 14. The lower end of the rotating shaft 25 is made to protrude downward from the whitening trochanter 24 and a drive mechanism is fixed to the downward protrusion, and the lower end of the whitening chamber 42 has an annular discharge passage centered around the rotating shaft 25. A disc-shaped rotating member 30 is provided at the lower part of the discharge passage
A discharge chamber is formed between the disk-shaped rotating member 30 and the discharge chamber, and a discharge port 36 is formed on one side of the discharge chamber.

(Example) An example of the present invention will be described with reference to the drawings.
is a lower frame, and an upper frame 2 is stacked and stacked above the lower frame 1. The upper frame 2 has a cross section shaped like a circle or a vertical cylinder with corners. A plurality of window holes 3 are formed on the circumferential surface of the upper frame 2, and the window holes 3 are closed with a removable lid 4. An annular flange 5 projecting inward is attached. A support 7 of a supply hopper 6 is engaged with and placed on the upper surface of the collar 5.

In addition to the supply hopper 6, the flange 5 includes:
Install the spring bearing ring 8. The spring bearing ring 8
has an outer circumferential edge 9 that engages with the upper inner edge of the flange 5, and the other portion faces the space 10 in the upper frame 2, and has a spring receiving protrusion 1 on the lower surface.
1 is installed. A manual operating lever 12 is fixed to the spring receiver ring 8, and when the manual operating lever 12 is moved horizontally, the spring receiver ring 8 rotates. Reference numeral 13 denotes an engaging portion for fixing the manual operation lever 12 at a desired position once it has been rotated. The supply port 14 at the lower end of the supply hopper 6 is connected to the space 1 of the upper frame 2.
0, and the outside of the supply port 14 forms a horizontally expanded portion 15 that expands horizontally. 16
is a vertical sliding tube. Upper end 1 of the vertical sliding tube 16
7 surrounds the horizontally enlarged portion 15 and prevents the horizontally enlarged portion 15 from moving even when the vertical sliding cylinder 16 is moved down to the maximum.
It is formed so that it will not fall.

The vertically sliding cylinder 16 of the embodiment is formed into a cylinder having the same inner diameter from beginning to end, and a grain feeding spiral 18 is provided inside the cylinder. Three to four radial shafts 19 are attached to the outer circumference of the vertically sliding cylinder 16, and the lower end of the inclined rod 20 is pivotally attached to these. The upper end of the rod 20 is pivoted to a shaft portion 21 attached to the upper frame 2 side at a position offset from the shaft portion 19 in the circumferential direction. Between the lower end of the rod 20 and the spring receiving protrusion 11 of the spring receiving ring 8, there is a
A spring 22 is interposed.

The manual operation lever 12 shown in FIG. 4 is rotated horizontally to rotate the spring receiver ring 8, and the spring 22
When stretched, the elasticity of the spring 22 becomes stronger,
It can be adjusted to improve the whiteness.

The upper end of the polishing tube 23 is connected to the lower end of the vertically sliding tube 16 . The polishing cylinder 23 of the embodiment is a hexagonal cylinder made of a punched perforated plate. A whitening trochanter 24 is attached inside the whitening cylinder 23. The grain feeding spiral 18 and the milling trochanter 24 are fixed to the upper end of a vertical rotating shaft 25, and a vertical protrusion 26 is formed on the outer periphery of the milling trochanter 24. The protrusions 26 may be provided so as to be inclined in a direction that causes the rice grains in the milling chamber 42 to float upward when the milling trochanter 24 rotates, or the milling trochanter 24 may be a blower trochanter. When the whitening trochanter 24 is a blower trochanter, the rotary shaft 25 is made into a hollow pipe and also serves as a blower pipe.

Although the refined trochanter 24 in the embodiment is formed to have the same diameter throughout, it may also be formed into an inverted conical shape that becomes smaller in diameter toward the bottom. The lower end portion 27 of the refined trochanter 24 is connected to the upper end of a tapered portion 28 whose diameter becomes smaller toward the bottom.
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,
A disc-shaped rotating member 30 is attached to its lower end.
When the rotating shaft 25 rotates, the grain feeding spiral 18, the milling trochanter 24, the tapered part 28, the small diameter part 29, the disc-shaped rotating member 30, and the milling trochanter 24 rotate together. The upper end of the resistor 31 is attached to the lower end of the polishing tube 23 . The resistor 31 is formed into an annular body, and its upper end is formed to have the same inner diameter as the lower end of the polishing tube 23, but the diameter becomes smaller as it goes downward until it reaches the middle part in the vertical direction. An enlarged portion 33 is formed below the tapered resistance surface 32, the diameter of which gradually increases toward the lower end. A discharge passage X is formed between the tapered portion 28 and the tapered resistance surface 32. The vertical sliding tube 16 and the polishing tube 2
3 and the resistor 31 are of integral construction, and the whole rotates and moves up and down together. The outside of the small diameter portion 29 is surrounded by a guide tube 34 . The upper end of the guide tube 34 surrounds the enlarged portion 33 at the lower end of the resistor 31, and the lower end surrounds the disc-shaped rotating member 30. Enlarged section 3
3 will not come off from the guide tube 34 even if it is moved up to the maximum. The guide tube 34 has several connecting pieces 3
5, it is fixed to the upper frame 2. A part of the guide tube 34 is cut out and opened to form a discharge port 36, and a discharge gutter 37 is attached to the outside of the discharge port. The space 1 in the upper frame 2
Reference numeral 0 also serves as a falling chamber in which the bran ejected from the polishing tube 23, which is a bran removal tube, falls, and a suction blade 3 is installed below the disc-shaped rotating member 30 to suck and remove the bran.
8 will be provided.

In the embodiment shown in FIG. 7, the vertical sliding tube 16 simply moves up and down. That is, several protrusions 39 are attached to the outer periphery of the vertical sliding cylinder 16, a threaded rod 41 is attached to the upper wall 40 of the upper frame 2 so as to be vertically adjustable, and a spring 22 is attached between the protrusions 39 and the threaded rod 41. This is the one with the .

(effect) Next, we will discuss the effect.

When raw brown rice is put into the supply hopper 6, it flows down from the supply port 14 of the hopper at the lower end of the supply hopper 6, receives the downward feeding action of the grain feeding spiral 18,
It flows into the whitening chamber 42 formed between the outer surface of the whitening trochanter 24 and the inner surface of the whitening tube 23. However, immediately after the start of polishing, the upper and lower sliding tubes 16 and the polishing tubes 2
3 and the resistor 31 are moved up to the maximum due to the elasticity of the spring 22, and the resistor 31 is moved upward by the discharge formed by the tapered resistance surface 32 and the tapered portion 28, as shown in FIG. Since the passage X is made as narrow as possible, the rice grains are gradually stored in the milling chamber 42. Therefore, the milling chamber 42 is clogged with more rice grains than a normal vertical grain milling device, and the rice grains are milled efficiently.
Even if a large amount of rice grains become clogged inside the whitening chamber 42, the discharge passage X starts in a circular shape just below the whitening chamber 42, so the whitening work can continue without being completely clogged. Eventually, the rice grains in the polishing chamber 42 become clogged to the point of crushing, but at that time, the polishing tube 23 rotates in the circumferential direction together with the vertical sliding tube 16 against the elasticity of the spring 22. Then, by the action of the spring 22, the vertical sliding cylinder 16, the polishing cylinder 23, and the resistor 31 are moved downward together to open the discharge part widely as shown in Fig. 13, and then, This reduces the resistance and prevents the rice grains from breaking.

In the case of the embodiment shown in FIG. 7, simply the vertical sliding tube 16
Then, the polishing tube 23 and the resistor 31 are moved up and down to widen the discharge passage, and the amount discharged by the grain feeding spiral 18 is made larger than the amount fed in, thereby preventing crushing.

The rice grains that fell from the discharge passage X are
It is deposited on the upper surface of the disc-shaped rotating member 30, but the disc-shaped rotating member 30 is fixed to the rotating shaft 25,
Since it rotates horizontally, the rice grains on the upper surface are rotated horizontally and are discharged from the discharge port 36 which is open on one side, and flow down the discharge gutter 37.

(Effects) The present invention fixes the whitening trochanter 24 to the vertical rotating shaft 25, surrounds the outer periphery of the whitening trochanter 24 concentrically with the vertical whitening tube 23, and connects the whitening trochanter 24 with the whitening trochanter 24. A whitening chamber 42 is formed between the whitening cylinders 23 , a supply port 14 is formed right above the center of the whitening chamber 42 , the upper end of the rotating shaft 25 is formed lower than the supply port 14 , and the upper end of the rotating shaft 25 is formed lower than the supply port 14 . The lower end of the whitening chamber 42 is made to project downward from the whitening trochanter 24, and a drive mechanism is fixed to the downwardly protruding portion. At the lower end of the whitening chamber 42, an annular discharge passage X centered around the rotating shaft 25 is formed. A discharge chamber is formed between the discharge passage X and the disc-shaped rotation member 30 by providing a disc-shaped rotating member 30 that horizontally rotates together with the rotating shaft 25 at a distance above and below the discharge passage X at the lower part of the discharge passage X. Since the discharge device is a vertical milling device with a discharge port 36 formed on one side of the discharge chamber, (1) the rotating shaft 25 does not face the supply port 14 formed directly above the center of the milling chamber 42; Therefore, as in the known example shown in FIG. 2, it is possible to uniformly supply white flour into the whitening chamber 42 without unevenness.

(2) Since the annular discharge passage X is formed right below the center of the whitening chamber 42, it has the characteristics of the known example shown in Fig. 2, but
As in the known example shown in FIG. 3, it is discharged uniformly from the whitening chamber 42.

(3) An annular discharge passage X centered on the rotation shaft 25 is formed at the lower end of the whitening chamber 42, and at the bottom of the discharge passage By providing the rotating disk-shaped rotating member 30, a discharge chamber is formed between the discharge passage X and the disk-shaped rotating member 30, and the discharge port 36 is formed on one side of the discharge chamber. The discharge port 36 is formed on one side, but unlike the discharge port shown in FIG. 2, the discharge port 36 is located below the discharge passage X, so the pressure is zero and there is no clogging.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of a horizontal pressure grain milling device, Figure 2 is a cross-sectional view of a vertical non-pressure grain milling device, Figure 3 is a cross-sectional view of the same non-pressure grain milling device, and Figure 4 is a vertical grain milling device. A side view of the mold pressure type grain milling device, FIG. 5 is a vertical sectional side view of the same main part, FIG. 6 is a view of the same operation, FIG. 7 is a view of the second embodiment, FIG. 8 is a sectional view of the spring bearing ring, FIG. 9 is a sectional view of the hopper, FIG. 10 is a sectional view of the vertical sliding tube, FIG. 11 is a sectional view of the discharge passage, and FIGS. 12 and 13 are operational views. 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
...Engaging portion, 14...Hopper supply port, 15...
...Horizontal expansion part, 16... Vertical sliding tube, 17... Upper end, 18... Grain feeding spiral, 19... Shaft part, 20...
Rod, 21...Shaft, 22...Spring, 23...
Refining tube, 24... Refining trochanter, 25... Rotating shaft, 2
6... Projection, 27... Lower end portion, 28... Taper portion, 29... Small diameter portion, 30... Flange-shaped member, 31
...Resistor, 32...Taper resistance surface, 33...
...Enlarged portion, 34...Guiding tube, 35...Connecting piece, 3
6...Discharge port, 37...Discharge gutter, 38...Suction blade, 39...Protrusion, 40...Top wall, 41...Threaded rod, 42...Refining chamber.

Claims (1)

[Claims] 1 Fix the refined trochanter 24 to the vertical rotating shaft 25,
The outer periphery of the whitening trochanter 24 is concentrically surrounded by a vertical whitening tube 23 to form a whitening chamber 42 between the whitening trochanter 24 and the whitening tube 23.
A supply port 14 is formed directly above the center of the rotating shaft 2.
The upper end of the rotating shaft 25 is formed lower than the supply port 14, the lower end of the rotating shaft 25 is made to protrude below the whitening trochanter 24, and a drive mechanism is fixed to the downward protrusion. By forming an annular discharge passage X centered on the shaft 25, and providing a disk-shaped rotating member 30 at the bottom of the discharge passage X at a distance above and below the discharge passage X and horizontally rotating together with the rotation shaft 25. A discharge device for a vertical pumping device, in which a discharge chamber is formed between the discharge passageway X and the disk-shaped rotating member 30, and a discharge port 36 is formed on one side of the discharge chamber.