JPS6248540B2 - - Google Patents

Description

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

An object of the present invention is to enable a vertical grain milling device to carry out load milling, which was considered impossible in the past, and to provide a pressure-based vertical grain milling device.

Another object of the present invention is to theoretically make it possible to obtain a vertical grain milling device with less unevenness.

Still another object of the present invention is to solve the clogging phenomenon of non-pressure type vertical grain milling equipment.

Compared to horizontal grain milling equipment, vertical grain milling equipment has the advantage of being able to mill grain in its original form and has a significantly lower incidence of broken rice. Since it is a device, it has the flaw that its ability to extract the essence is extremely low.

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 axis 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 resistance lid G is attached to the discharge port F to prevent the rice grains from being easily discharged from the milling chamber, and the horizontal shaft A is forced to rotate to mill the rice. Since the rice grains that are forcefully fed by B are polished under great pressure while being prevented from being ejected by the resistor lid G, it has the advantage of being able to obtain milled polished rice. Because of this, a lot of broken rice is produced. In addition, in the grain milling equipment shown in Figure 1, the milling chamber is also horizontal, so the rice is distributed thickly in the lower layer of the milling chamber due to its own weight, and the upper layer of the milling chamber is thinner, resulting in uneven grains. It is. However, because the rice milling efficiency is quite high and the power transmission mechanism is easy to construct, almost all milling factories today use horizontal grain milling equipment, and most milling factories use vertical grain milling equipment. The reality is that there is no such thing.

The ones shown in FIGS. 2 and 3 are typical examples of vertical grain milling equipment currently used in some rice mills and sake brewing plants.

The example shown in Figure 2 is a grain milling device that is often used in sake brewing factories, where H in the figure is a vertical shaft and I is a grinding rotor attached to the top of the vertical shaft H. Characteristically, the vertical shaft H does not protrude above the trochanter I, but only below, and the pulleys etc. are fixed below the trochanter I and are driven below the trochanter I. Ta. In the vertical grain milling device shown in Fig. 2, when rice grains a are fed from the upper supply port J,
The rice grains a are milled while being stirred horizontally by a horizontally rotating grinding wheel (grinding wheel made of metal sand) I, and are discharged from a discharge port K formed at the bottom of this vertical grain milling device. The defect is that the location of the outlet K is not in the center of the milling room, but on the side of the milling room.
The point is that the rice grains that have accumulated in the part indicated by arrow L on the opposite side are difficult to be discharged. Of course, the grinding trochanter I is
Since it is rotating at a high circumferential speed of 2000 feet, the rice grains in the area indicated by the arrow L are also horizontally agitated by the grinding rotor and discharged from the discharge port K by centrifugal force. , has been put into practical use and is widely used; however, the second
Resistance lid M attached to the outlet K of the grain milling device shown in the figure
If the resistance is made even slightly too strong, it will become jammed and an accident will occur where the grinding roller I will no longer rotate at all. That is, the resistor lid M is only a sham resistor device, and is used in a nearly non-resistance state with almost no resistance applied. As mentioned above, the accident where rice grains get stuck in the milling chamber and the grinding roller I stops is not an extremely rare occurrence, and if you use it even slightly incorrectly, grinding will occur. This is the defect in the grain milling equipment shown in Figure 2 (when it becomes clogged, the entire equipment must be dismantled).

The vertical grain milling device shown in FIG. 3 overcomes the deficiencies of the vertical grain milling device of FIG. That is, the vertical type H does not protrude downward from the grinding trochanter I, but only upwardly, and the pulley N is attached thereto, creating an upper drive structure. Since the opening is directly below the center, no accumulated rice grains like the arrow L shown in FIG. 2 are released.

However, in the case of the vertical grain milling device shown in FIG. 3, the pulley N is located at the supply port J, which hinders the operation of supplying rice grains. 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 of the arrow A shifted to one side of the whitening room is opened and the brown rice is supplied from there, the supply to the whitening room is biased, which is not unreasonable. do not have.

As explained above, the horizontal grain milling device shown in Fig. 1 has the disadvantage that the distribution of rice grains becomes uneven due to its horizontal design. The vertical grain milling device shown has the disadvantage that the rotating shaft of the grinding rotor protrudes downward and the discharge port is on one side of the milling chamber, so rice grains accumulate on the opposite side of the discharge port. The one in Figure 3 is
Since the rotating shaft protrudes above the whitening trochanter, the discharge port can be opened directly below the center of the whitening trochanter, which solves the defect of the known example in Figure 2.On the other hand, the pulley attached to the shaft that projects upward The problem is that the supply of rice grains is shifted to one side due to interference.

However, if the configuration of the outlet is configured as follows,
Even if the rotating shaft has a structure in which it protrudes below the white trochanter, it can be ejected from directly below the center of the white trochanter, and resistance can be reasonably applied.
Good results can be obtained.

The present invention a. Attach the white trochanter to the vertical rotating shaft.

b. Surround the outer periphery of the whitening trochanter with a whitening cylinder.

c. Attach the upper end of the tapered part, which becomes smaller in diameter as it goes downwards, to the lower end of the refined trochanter.

d. The upper end of the annular resistor having a tapered resistance surface whose diameter gradually becomes smaller toward the bottom is joined to the lower end of the polishing cylinder.

e The tapered portion and the tapered resistance surface are provided in correspondence with each other, and an annular discharge passage is formed therebetween.

f The gap between the discharge passages becomes narrower toward the bottom.

g The taper part and the taper resistance surface move up and down relative to each other.

The gist is the combination of abcdefg.

To explain with the drawing, 1 is a lower frame, and an upper frame 2 is stacked and stacked above the frame 1. The frame 2 has a vertical cylindrical shape with a circular or angular cross section. Window holes 3 are formed at multiple locations on the peripheral side of the frame 2,
The window hole 3 is closed with a removable lid 4. An annular flange 5 projecting inward is attached to the upper end (or upper wall) of the upper frame 2. 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, a spring bearing ring 8 is attached to the flange 5. 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 has a spring receiving protrusion 11 on the lower surface. It is installed. 12 is a manual operation lever,
It is fixed to the spring receiving ring 8, and by holding the lever 12 and moving it horizontally, the ring 8 can be rotated. Reference numeral 13 designates an engaging portion for fixing the lever 12 at a desired position once the lever 12 has been rotated to a desired position. The lower end 14 of the hopper 6 expands horizontally at a position above the space 10 of the upper frame 2 to form a horizontally expanded portion 15 . 16
is a vertical sliding tube. The upper end 17 of the sliding tube 16
is formed so as to surround the horizontally enlarged portion 15 formed at the lower end 14 of the hopper 6, and to prevent the sliding tube 16 from lowering below the horizontally enlarged portion 15 even if it moves downward to the maximum. . Sliding tube 16 of the embodiment
is formed into a cylinder having the same inner diameter throughout, and a grain feeding spiral 18 is provided inside the cylinder. Three shafts 19 are provided in the radial direction on the outer circumferential surface of the vertical sliding tube 16, and shafts 21 corresponding to the shafts 19 are attached to the upper frame 2. A diagonal rod 20 is attached to the. The specific structure is
As shown in FIG. 13, it is formed into a flexible joint, a screw tube 43 is fixed to the outer periphery of the sliding tube 16, and a bolt 44 having a thread only at the tip is screwed into the screw tube 43. A spherical body 4 is attached to the smooth surface 45 at the base of the bolt 44.
6 is mounted on the shaft, the shaft body 47 at the lower end of the rod 20 is fitted to the outside of the spherical body 45, and the upper frame 2 is similarly mounted.
Attach the threaded cylinder 48 to the inner surface of the bolt 48, screw the bolt 49 onto it, attach the spherical body 51 to the smooth surface 50 of the bolt 49, and fit the shaft body 52 at the upper end of the rod 20 on the outside of the spherical body 51. This makes it a flexible joint.

A spring 22 is interposed 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 operating 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. The vertical sliding tube 1
The upper end of the polishing cylinder 23 is coupled to the lower end of the polishing cylinder 6 .
The whitening cylinder 23 in the embodiment is a hexagonal cylinder made of a punched perforated plate, and is formed as a sugar removing cylinder. Inside the polishing cylinder 23, there is a polishing trochanter 24 which is a friction trochanter.
is installed. The grain feeding spiral 18 and the milling trochanter 24 are fixed to the upper end of a vertical shaft 25, and a vertical protrusion 26 is formed on the outer periphery of the trochanter 24. The protrusion 26 may be provided so as to be inclined in a direction that causes the rice grains in the milling chamber to float upward.
Further, the white trochanter 24 may be a blowhole trochanter.
When the white trochanter 24 is a blow trochanter, the shaft 2
5 is a hollow pipe. Although the refined trochanter 24 in the embodiment is formed to have the same diameter throughout, it may be formed into an inverted conical shape that becomes smaller in diameter as it goes downward. At the lower end 27 of the refined trochanter 24, there is a tapered part 2 that becomes smaller in diameter as it goes downward.
The upper ends of 8 are connected. The upper end of the small diameter portion 29 is joined to the lower end of the tapered portion 28 . Small diameter part 2
It has a constant height in the vertical direction of 9, and the upper end of a taper guide surface 30, which gradually becomes larger toward the bottom, is joined to its lower end. The white polishing cylinder 23
The lower end of the trochanter 24 faces the lower end 27 of the polished trochanter 24, and the upper end of the resistor 31 is attached to the lower end. 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 whose diameter gradually increases toward the lower end is formed below the tapered resistance surface 32. The tapered portion 28 and the tapered resistance surface 32 are provided facing each other, and a discharge passage X is formed therebetween.
The gap between the discharge passages X is formed to be wider at the top and narrower at the bottom, and therefore becomes a resistance passage. The vertically sliding tube 16, the polishing tube 23, and the resistor 31 are integrally constructed, 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 . Even if the enlarged portion 33 moves upward to the maximum, it will not come off the guide tube 34. The guide tube 34 is fixed to the upper frame 2 by several connecting pieces 35. A portion 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 36. The space 10 in the upper frame 2
sugar suction blades 38 are provided below the taper guide surface 30 to serve as a falling chamber in which sugar spouted from the whitening tube 23, which is a sugar prevention tube, falls, and to suck and remove the sugar.

Next, we will discuss the effect.

When raw brown rice is fed into the supply hopper 6, the brown rice flows down from the lower end 14 of the hopper 6 and is subjected to the strong downward feeding action of the grain feeding spiral 18, causing the outer surface of the milling trochanter 24 and the inner surface of the milling cylinder 23 to It flows into the whitening chamber 42 formed between the two. Immediately after the start of polishing, however, the amount flowing into the polishing chamber 42 is small and the polishing trochanter 24 rotates lightly, so that the vertical sliding cylinder 16, the polishing cylinder 23, and the resistor 31
is moved up to the maximum by the elasticity of the spring 22,
As shown in FIG. 12, the resistor 31 minimizes the narrowness of the discharge passage X formed by the tapered resistance surface 32 and the taper portion 28.

Therefore, since it is initially empty, the whitening chamber 4
The rice grains in 2 fall forcefully under their own weight and enter the discharge passage X.
As a result, it falls down and rolls all the way to the discharge gutter 37, but after a while, as the discharge passage It accumulates throughout the inside and is pumped under pressure, and is pumped efficiently. However, as the work progresses, the grain feeding spiral 18
As the downward feeding continues, the milling room 4
The pressure inside 2 becomes higher and higher until the rice grains are crushed.
6 and rotate in the circumferential direction according to the elasticity of the spring 22 to relieve the pressure, and the vertical sliding cylinder 16, the polishing cylinder 23 and the resistor 31 are lowered together by the action of the rod 20. As shown in Fig. 13, the discharge passage is wide open to reduce the resistance and prevent the rice grains from being crushed.

The present invention has the above-mentioned structural functions, and in particular: a. The whitening trochanter 24 is attached to the vertical rotating shaft 25.

b. Surround the outer periphery of the whitening trochanter 24 with the whitening tube 23.

c. The upper end of a tapered portion 28 whose diameter gradually becomes smaller toward the bottom is joined to the lower end 24 of the polished trochanter 24.

d. The upper end of an annular resistor 31 having a tapered resistance surface 32 whose diameter gradually becomes smaller toward the bottom is joined to the lower end of the polishing tube 23.

e The tapered portion 28 and the tapered resistance surface 32 are provided correspondingly, and an annular discharge passage X is formed therebetween.

f The gap between the discharge passages X becomes narrower toward the bottom.

g The taper portion 28 and the taper resistance surface 32 move up and down relative to each other.

In order to smoothly supply rice grains from just above the center of the milling chamber, even if the rotary shaft to which the milling trochanter is attached protrudes only downward, the discharge port is not connected to the milling trochanter. The opening can be made directly below the center, and even if the discharge port is formed directly below the center of the polished trochanter, it is possible to provide a variable resistance device that operates reliably.

[Brief explanation of the drawing]

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 longitudinal sectional side view of the same main part, FIG. 6 is a view of the same operation, FIG. 7 is a sectional view of the spring bearing ring, FIG. 8 is a sectional view of the hopper, Figure 9 is a cross-sectional view of the vertical sliding tube, Figure 10 is a cross-sectional view of the discharge passage,
11 and 12 are operational views, and FIG. 13 is a plan view of the main parts. 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...
... Grain feeding spiral, 19... Shaft, 20... Rod, 2
1...Shaft portion, 22...Spring, 23...Refining tube, 2
4...Sperm trochanter, 25...axis, 26...ridge, 2
7...Lower end part, 28...Taper part, 29...
Small diameter portion, 30...Taper induction surface, 31...Resistor, 32...Taper resistance surface, 33...Enlarged portion, 34...Induction cylinder, 35...Connecting piece, 36...
Discharge port, 37...Discharge gutter, 38...Sugar suction blade, 4
2... Refining room, 43... Spiral, 44... Bolt,
45... Smooth surface portion, 46... Spherical body, 47... Shaft body, 48... Spiral tube, 49... Bolt, 50... Smooth surface portion, 51... Spherical body, 52... Shaft body, X... discharge passage.

Claims (1)

[Scope of Claims] 1. A resistance device for a vertical grain milling device comprising a combination of the following requirements a to g. a. Attach the white trochanter to the vertical rotating shaft. b. Surround the outer periphery of the whitening trochanter with a whitening tube. c. Attach the upper end of the tapered part, which becomes smaller in diameter as it goes downwards, to the lower end of the refined trochanter. d. The upper end of the annular resistor having a tapered resistance surface whose diameter gradually becomes smaller toward the bottom is joined to the lower end of the polishing cylinder. e The tapered portion and the tapered resistance surface are provided in correspondence with each other, and an annular discharge passage is formed therebetween. f The gap between the discharge passages becomes narrower toward the bottom. g The taper part and the taper resistance surface move up and down relative to each other.