JP2583781Y2 - Rice milling equipment for rice huller - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice hulling (milling) machine, and more particularly, to a mixed rice air selection device for a hulling machine.

[0002]

2. Description of the Related Art Conventionally, in a huller having a dehulling device provided with rubber rolls and the like, and a rice hulling rice sorter such as a rocking sorter, the above-mentioned dehulling device makes it possible to remove 80 to 90 hours of raw rice.
% Of the unpolished rice is then separated from the unpolished rice in a paddy brown rice sorter and extracted as finished rice.

[0003] By the way, the above-mentioned dewatering device is provided with a main wind selection means for removing chaff and other foreign matter separated from the brown rice. During the transfer of the rice to the brown rice sorting apparatus, so-called semi-polished rice, which has been incompletely extracted by the extraction apparatus, is extracted to generate rice husks. This semi-dehulled rice is in a state in which rice husks are detached by a slight contact, and this occurs in any transportation means. In particular, in the case of throwers, the rice husks thus produced are remarkable. There is a problem that the flow into the unpolished rice sorting apparatus causes a decrease in the sorting efficiency and the like.

[0004]

Therefore, it has been proposed, for example, in Japanese Patent Application Laid-Open No. Sho 60 (1988) to provide a wind selection section for mixed rice in the discharge section of the lower.
No. 87864 is proposed. That is, the scattering prevention plate 102 is
(See FIG. 6), and a pair of shelves 10 having a different shelf shape inwardly inclined below the shatterproof plate 102.
3 and 104, the upper side of one of the shelves 104 is in communication with the exhaust pipe 105, and the pair of shelves 103 and 104 are provided.
A temporary storage tank 107 is suspended between a grain feeding trough (hi) 106 and a paddy brown rice sorting device (a swing sorting plate) (not shown).

[0005] However, the above-mentioned mixed rice wind sorter has the following problems. In order to wind-select the mixed rice immediately after being discharged from the outlet of the lower 101, it is necessary to reduce the discharge speed of the mixed rice and to disperse the mixed rice. Affects overall height. The discharge amount from the thrower 101 is not uniform and varies greatly depending on various conditions. Therefore, when the discharge amount is large, the wind selection is poor, and when the discharge amount is small, even the sizing is removed.

[0006] In view of the above points, the present invention has a technical problem to provide a mixed rice air sorting apparatus for a huller which is not affected by the discharge amount of the thrower while reducing the height space of the wind selecting section as much as possible. I do.

[0007]

Means for Solving the Problems To solve the above problems, the present invention provides a rice milling apparatus for a rice huller, comprising: a wind-selecting unit provided with a roll, a main-air selecting unit and an exhaust fan; A paddy brown rice sorting section for sorting mixed rice of paddy / brown rice, a tank for supplying a fixed flow of mixed rice to the paddy brown rice sorting section, and a thrower for transporting the mixed rice from the air removal section to the tank; An air path for selecting the mixed rice , which is connected to the air blower, and a hulling machine provided with: a bent down flow path formed immediately below the discharge port of the tank, and an opening of the bent down flow path Technical measures were taken to make the part face the wind path.

[0008]

[Function] The mixed rice of the unhulled rice and the brown rice, which has been removed by the rolls and whose husks have been removed in the main wind selection unit, is fried in a tank by a thrower and diffused from the outlet of the tank.
In state, and then gravity flow at a constant flow rate, the leads to lower <br/> opening by bending while decelerating in contact with the bent flow down passage provided directly below the discharge port, approximately the mixed rice flow Rice husks are removed by the airflow passing at right angles to the wind path.

Further, by closing the opening with the valve, the mixed rice in the tank does not stay in the supply section of the rice grain sorting unit when the rice grain sorting unit is stopped.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes the entire huller, and the huller 1 includes a degassing air selection unit 2 and a hulled brown rice sorting unit 3 and will be described in order along the flow of raw rice.

[0011] In the air removal unit 2, the hopper 4
A pair of pull-out rolls 5 and 6 are provided below (see FIG. 2), and a vibration conveyor 8 is provided below the pull-out rolls 5 and 6 via a scattering prevention hopper 7. The vibrating conveyor 8 is laid laterally with a small gap (gap) on both sides between the front wall 9A and the rear wall 9B of the main body case 9 to open one side in the vibration direction, that is, open the inner side of the main body case. Outlet 1
It is supported by the leaf springs 11 and 12 so as to be able to vibrate. Then, the following main wind selection unit 13 is provided facing the discharge port 10 of the vibrating conveyor 8. The lower two inlets 15A, 15A of the exhaust fan 14 provided in the upper part inside the main body case 9 are tops, and are hung downward on the front wall 9A and the rear wall 9B.
A wind path 16 bent in a letter shape is formed.
6. The discharge port 10 of the vibrating conveyor 8 is made to face the opening 17 at the lower part of 6. At this time, a substantially horizontal horizontal shelf plate 18 which once receives the polished rice (rice, brown rice, rice husk) discharged from the discharge port 10 may be provided horizontally.

An inclined bottom plate 19 connected to the horizontal shelf plate 18
Is formed in the porous portion 20, the bottom of the inclined bottom plate 19 is formed as a mixed rice receiving gutter 21, and a mixed rice screw 22 is suspended in the mixed rice receiving gutter 21. On the other hand, the wind path 16
A rectifying plate 23 is appropriately bridged inside the
Open a part of the rice and leave it as immature rice outlet 24, immature rice outlet 2
An immature rice gutter 25 provided with an immature screw 26 is provided below 4. One end of the immature rice trough 25 is formed as an immature rice discharge port 27, and the mixed rice trough 21 is connected to a mixed rice thrower 28 provided on the rear wall 9B side.

The outlet 28a of the mixed rice thrower 28 is exposed to a suspension tank 29 for temporarily storing the mixed rice via a scattering prevention plate 36 (see FIG. 5). The suspension tank 29 has one side rotatably supported by the suspension tank cover 30 and a tension spring 31 suspended in the suspension tank cover 30.
To hang the other side. Further, a shutter plate 33 which is slid by an operation rod 34 is provided at an outlet 32 of the suspension tank 29. In addition, as described in Japanese Patent Application Laid-Open No. 60-87864, the hanging tank 29 moves up and down according to the accumulated amount of the mixed rice, and the flow control provided at the discharge port of the hopper 4 is controlled. Preferably, the opening degree of the valve 35 is adjusted.

[0014] with form and bent under a stream passage 44 provided set of staggered shelves like the shelf plate 37 and 38 are inclined inwardly with each other immediately below the suspended tank 29, an opening is formed at the lower end of these shelves 37, 38 A mixed rice style selection unit is formed facing the starting end side of the rising air path 40 which gradually rises and slopes relative to 39. The updraft air passage 40 includes, in order, a horizontal air passage 41 that changes the direction toward the exhaust fan 14, a communication air passage 42 that changes the direction downward, and a rear air intake chamber 43 that is formed by connecting to the rear upper inlet 15 </ b> B of the exhaust fan 14. By being connected, it is communicated with the exhaust fan 14. Further, a discharge hopper 45 is provided at the lower end of the mixed rice wind selection unit, and an equalizer 47 for a swing sorting plate 46 described below is positioned below the discharge hopper 45. Mixed rice valve 4 that opens and closes the opening 39 at the lower end
8 is provided. The mixing rice valve 48 is appropriately connected to an operation lever 49 so as to be opened when the swing sorting plates 46 are driven and closed when stopped.

Next, with reference to FIG. 4, the brown rice sorting section 3 will be described. A plurality of swing sorting plates 46, which are inclined in the swing direction and the discharge side, are stacked and provided so as to be integrally swingable by a swing mechanism (not shown). And, in the discharge gutter 52 provided on the discharge side, the brown rice partition plate 50 is provided on the inclined upper side,
The rice partitioning plate 51 is provided movably on the lower side of the slope, while the above-mentioned equalizer 47 is integrally fixed on the supply side.
A rice receiving hopper 55 is provided below the rice partitioning plate 51 and connected to a supply port 54 of a return rice thrower 53 connected to the stuffing hopper 4, and a brown rice partitioning plate 50 is provided above the mixed rice receiving gutter 19. A discharge port 57 is opened in the mixed rice receiving gutter 19 and a discharge / circulation switching valve 56 is provided in the discharge port 57.
Attach.

The switching valve 56 is preferably formed so as to be switched in conjunction with an operation lever 49. The switching valve 56 has a discharge port 57 and a brown rice thrower 5 provided below the discharge port 57.
9, a bent downflow path 69 composed of shelves 60 and 61 having different shelves inclined inwardly from each other, an air inlet 62, and an air inlet provided in the air inlet 62 and the front cover 63. A brown rice wind selection section 66 is formed, which is composed of an upwardly inclined air path 65 communicating with the air passage 64. Then, the air suction port 64
Is formed by a ventilation path 67 formed inside the front cover 63.
The air blower 14 is connected to the air suction chamber 68 provided to be connected to the upper front entrance 15C.

Next, the drive system will be described with reference to FIG. A motor 70 is fixed to the inner bottom of the main body case 9, and a motor pulley 71 and a stepped pulley 72 for driving the rolls 5 and 6 are interlocked and connected. The stepped pulley 72, the fan pulley 73, the immature rice screw pulley 74 axially attached to the immature rice screw 26, the mixed rice screw pulley 75 axially attached to the mixed rice screw 22,
The brown rice thrower pulley 76 for driving the brown rice thrower 59 and the pull-in roll pulley 77 are interlocked and connected, and further, the movable pulley 76 for the brown rice thrower and the swing pulley 78 for driving the swing sorting plate 46. (Not shown) (FIG. 4). An eccentric wheel 79 for driving the vibration conveyor 8 is provided on the screw 26 for immature rice.
Axle.

Hereinafter, the specific operation in the above embodiment will be described. Raw material chaff is supplied from the stuffing hopper 4, and the raw material chaff is supplied between the removal rolls 5 and 6 by the operation lever 49 via the flow rate adjusting valve 35. The polished rice, of which about 85% has been removed between the rolls 5 and 6 having different peripheral speeds, falls into the vibrating conveyor 8 via the scattering prevention hopper 7 and spreads over the entire surface while being conveyed and becomes flat. Is discharged at a constant flow rate from the discharge port. At this time, the fixed horizontal shelf 18
Once dropped, it is smoothly supplied into the air passage 16, and the paddy and brown rice are mixed along the inclined bottom plate 19 in the mixed rice receiving trough 2.
1 and the rice husks ride on the rising airflow and
Flows into the lower inlets 15A, 15A and is discharged out of the machine. The immature rice falls from the immature rice drop 24 to the immature rice receiving gutter 25 and is discharged from the immature rice discharge port 27.

On the other hand, mixed rice consisting of paddy rice and brown rice which has flowed down into the mixed rice receiving gutter 21 is conveyed by the mixed rice screw 22 and supplied to the mixed rice thrower 28 where it is fried.
Mixed rice discharged from the discharge port 28a of the mixed rice thrower 28 together with the wind is stalled by the scattering prevention plate 36 and falls into the suspension tank 29. The mixed rice accumulated in the suspending tank 29 in this manner is moved in the bent downflow path 44 of the mixed rice wind selection unit from the outlet 32 at a uniform flow rate and a constant flow rate in the width direction of the wind selection unit by appropriately sliding the shutter plate 33. Fall naturally.

The mixed rice is decelerated in the bent down flow path 44 formed by the shelves 37 and 38 while contacting the shelves 37 and 38, and flows down while diffusing to reach the opening 39 at the lower end. Then, the airflow toward the start end of the updraft air passage 40 provided opposite to the opening 39 causes the mixed rice thrower 28 to flow.
The rice husks generated by the air are conveyed by air, flow into the rear upper inlet 15B of the exhaust fan 14 through the horizontal air passage 41, the communication air passage 42, and the rear air intake chamber 43, and are discharged out of the air exhaust device 14.

The mixed rice thus selected in the air falls from the discharge hopper 45 into the equalizer 47, and is uniformly supplied to the swing sorting plates 46, which are provided in a plurality of stages, and shakes without rice husks. The paddy falling from the discharge side receiving the kinetic sorting operation returns from the supply port 54 in the paddy receiving hopper 55 and is supplied to the paddy thrower 53 to be returned to the embedding hopper 44, and the mixed rice is mixed along the inclined bottom plate 19. Drops into rice trough 21 and returns to mixed rice thrower 2
8 to the suspension tank 24.

On the other hand, the brown rice is guided to the supply port 58 of the brown rice thrower 59 by the switching valve 56.
When falling from the meandering downflow path 69 formed in Step 1, rice husk pieces and dust are removed by the ascending airflow toward the air intake port 64, and the air is exhausted from the ventilation path 67 and the front air intake chamber 68 provided in the front cover 63. It is discharged out of the machine through the front upper entrance 15C of 14 and is finished rice which is not mixed with foreign matter and is taken out from the brown rice thrower 59.

The bottom of each of the immature rice trough 25 and the mixed rice trough 21 below the trough 21 can be opened, and the remaining rice tray can be pulled out below the mixed rice trough 21 so as to be drawn out. The remaining rice can be easily cleaned.

[0024]

According to the present invention as described, according to the invention described above, a bent flow down path is formed just below the outlet of the tank for mixing rice, the opening of the curved folding falling path lower end, communicates with the exhaust fan Since it was made to be a mixed rice wind selection device facing the air path, without being affected by the discharge flow rate of the mixed rice thrower connected to the tank,
The mixed rice falling at a constant flow rate from the tank can always be selected by wind under constant conditions, and naturally falls from the tank, so it can be sorted sufficiently even if the height space of the wind selection section is smaller than before, and the hanging tank Can be lowered.

Further, since a valve for opening and closing the lower end opening of the bent fall path is provided, when the rice grain sorting unit is stopped, the valve is closed so that mixed rice stays in the supply unit of the rice grain sorting unit. Furthermore, by providing a valve in the fixed air selection section, the valve can be easily opened and closed.

[Brief description of the drawings]

FIG. 1 is a front view of a rice huller according to the present invention.

FIG. 2 is a cross-sectional view showing the same device.

FIG. 3 is a cross-sectional view of the right side of the above.

FIG. 4 is a partially broken cross-sectional view showing the rice grain sorting device of the above.

FIG. 5 is a cross-sectional view showing the mixed rice wind selection device according to the first embodiment.

FIG. 6 is a cross-sectional view showing a conventional mixed rice wind selection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice hulling machine 2 Dehumidifying wind selection part 3 Unhulled rice sorting part 4 Stuck hopper 5 Demolding roll 6 Demolding roll 7 Anti-scattering hopper 8 Swing conveyor 9 Main case 10 Discharge port 11 Leaf spring 12 Leaf spring 13 Main wind Selection unit 14 Air blower 15 Inlet 16 Air path 17 Opening 18 Horizontal shelf plate 19 Inclined bottom plate 20 Porous part 21 Mixed rice receiving gutter 22 Mixed rice screw 23 Sizing plate 24 Immature rice drop 25 Immature rice receiving gutter 26 Immature screw 27 Unripe rice outlet 28 Mixed rice thrower 29 Suspension tank 30 Suspension tank cover 31 Tension spring 32 Discharge port 33 Shutter plate 34 Operating rod 35 Flow control valve 36 Shatterproof plate 37 Shelf plate 38 Shelf plate 39 Opening 40 Upwind path 41 Side air passage 42 Communication air passage 43 Rear air suction chamber 44 Bend down flow passage 45 Discharge hopper 46 Swing sorting plate 47 Equalizer 48 Mixed rice valve 4 Operating lever 50 Brown rice partitioning plate 51 Rice partitioning plate 52 Discharge gutter 53 Return rice thrower 54 Supply port 55 Rice receiving hopper 56 Switching valve 57 Discharge outlet 58 Supply port 59 Brown rice thrower 60 Shelf board 61 Shelf board 62 Air intake 63 Front Cover 64 Intake port 65 Air path 66 Brown rice wind selection unit 67 Ventilation path 68 Front air intake chamber 69 Bend down flow path 70 Motor 71 Motor pulley 72 Step pulley 73 Fan pulley 74 Immature rice screw pulley 75 Pulley for mixed rice screw 76 Brown rice Puller for slower 77 Pulley for pull-in roll 78 Pulley for swing 79 Eccentric wheel

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B02B 5/02-7/00 B07B 4/02

Claims (2)

(57) [Scope of request for utility model registration] Claims: 1. A degassing air sorting unit provided with a roll, a main air sorting unit and an exhaust fan, a paddy brown rice sorting unit for sorting mixed rice of paddy and brown rice, and a fixed flow of mixed rice to the paddy brown rice sorting unit. And a blower for conveying the mixed rice from the air removal unit to the tank, and an air passage connected to one end of the air blower for selecting the mixed rice. In the huller,
A mixed rice air selection device for a rice huller, wherein a bent downflow path is formed immediately below an outlet of the tank, and the other end of the airflow path faces the opening at the lower end of the bent downflow path. 2. A mixed rice air selection device for a rice huller according to claim 1, further comprising a valve for opening and closing the lower end opening of the bent down flow path.