JPH0321216B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a rice hulling device.

(Prior art) The conventionally known Japanese Utility Model Application Publication No. 55-58236 discloses a swing type grain sorting section provided at the lowest position, a wind sorting section and a wind sorting section which are loaded and superposed on the upper part of the swing type grain sorting section. It consists of a hulling section, a supply elevator, a take-out elevator, and a circulation elevator installed on the side, and the swinging grain sorting section separates the mixed grains of paddy and brown rice into intermediate grains by swinging its sorting plate back and forth. The grain, unhulled rice, and brown rice are separated into grains, a brown rice outlet is formed on one side of the front and back, a hulled rice outlet is formed on the other side of the front and back, and an intermediate grain outlet is formed in the middle, and the unhulled rice outlet is provided at the lower part of the feeding elevator. connecting the brown rice outlet to a lower part of the taking-out elevator, and connecting the intermediate grain outlet to the lower part of the circulation elevator;
This document describes a hulling device in which a supply gutter of the supply elevator is connected to the hulling section.

(Problems to be Solved by the Invention) In the above-mentioned known example, the wind sorting section and the hulling section are arranged in the upper part of the oscillating grain sorting section and loaded and polymerized, so the wind sorting section in particular becomes too small. It does not have sufficient effect.

In addition, the swinging type grain sorting unit is configured to separate the mixed grains of paddy/brown rice into three types: intermediate grains, unhulled rice, and brown rice by swinging its sorting plate in the front-rear direction, so the separation state is complicated.

Furthermore, since three elevators are required: a supply elevator, a take-out elevator, and a circulation elevator, the cost is high.

(Objective of the Invention) Therefore, the present invention makes it possible to obtain a hulling device with a simple structure that does not require a circulation elevator.

(Means for Solving the Problems) Therefore, the present invention includes a swing type grain sorting section 1 provided at the lowest position, and a wind sorting section 2 loaded and superposed on the top of the swing type grain selection section 1. The oscillating grain sorting section 1 consists of a hulling section 3 which is loaded and superposed on the upper part of the wind sorting section 2, and a feeding elevator 5 and a take-out elevator 6 provided on the side. When it is swung back and forth, the mixed grains of paddy and brown rice are separated into the left and right sides without taking out the middle grains, and a brown rice outlet 20 is formed on one left and right side and a hulled rice outlet 22 is formed on the other left and right sides. The take-out port 22 was connected to the lower part of the supply elevator 5, the brown rice take-out port 20 was connected to the lower part of the take-out elevator 6, and the supply gutter 8 of the supply elevator 5 was connected to the hulling section 3. This is a rice hulling device.

(Example) To explain with the drawings, 1 is a swinging type grain sorting unit, 2 is a wind sorting unit provided above the swinging type grain sorting unit 1, 3 is a hulling unit, and the hulling unit 3 is It is attached to the upper part of the wind selection section 2. 4 is a supply tank for the hulling section 3; 5 is a feeding elevator for the hulling section 3; 6 is an elevator for taking out finished rice; and 7 is a tensioning hopper for the feeding elevator 5.

That is, a wind sorting section 2 is provided on the upper part of a swing type grain sorting section 1 placed on the floor, a huller 3 is attached to the upper part of the wind sorting section 2, and a feeding elevator 5 and a take-out machine are installed on the sides thereof. The supply elevator 6 is provided, and the supply gutter 8 of the supply elevator 5 is connected to the supply tank 4 of the hulling section 3.
Connect the brown rice take-out port to the take-out elevator 6.

The oscillating grain sorting section 1 is provided with a oscillating sorting device 10 consisting of a sorting plate 13 and a swinging mechanism in a space inside a frame 9 made of angle steel. Unlike the conventional method, this method separates only unhulled rice 11 and brown rice 12 without producing a mixed rice (intermediate grain) of unhulled rice 11 and brown rice 12.

To explain its detailed structure, reference numeral 13 denotes a sorting plate of the present invention, and the sorting plate 13 of the embodiment has a width of 14 in the left and right directions, which is wider than the front and back width 14, as shown in FIG.
5 is longer, and its bird's-eye view shows a rectangular shape that is long on the left and right sides. At the front edge of the sorting plate 13, there is a front wall 1.
6 is formed over the entire width, and similarly, a rear wall 17 is formed over the entire width at the rear edge of the sorting plate 13. Therefore, on the front plate surface of the sorting plate 13, a group of left inclined protrusions 18 whose tips are directed toward the left if it is the left side of the left side is formed on the entire plate surface, and on the rear side of the sorting plate 13. On the board surface, a group of 19 right-slanted protrusions facing rightward on the right side of the left and right sides are formed over the entire board surface.

The left inclined projection 18 and the right inclined projection 19 are both formed in a direction to move the grain toward the front wall 16.

There is a brown rice outlet 2 on the front left side of the sorting plate 13.
0 is formed, and the rest are closed off by the left wall 21. An unhulled rice outlet 22 is formed in the right rear part of the sorting plate 13, and the rest is closed by a right wall 23.

A supply hopper 24 receives the grains falling from the wind sorting section 2 above, and is provided at the front position on the side where the unhulled rice outlet 22 is provided.

Thus, the lower end portion of the front support rod 26 is pivoted 27 to the front side of the support base 25 placed on the floor. Abutment 2
A screw rod 28 is pivotally attached to the rear side of 5 so that it can only rotate freely. Opposite thread grooves 29 and 30 are respectively carved on the left and right sides from the center of the threaded rod 28.
A piece 31 is screwed into the hole, and a piece 32 is screwed into the opposite screw groove 30. A vertically movable rod 33 is provided below the screw rod 28 so as to be movable up and down, and bosses 34 and 35 are fitted to the vertically movable rod 33 only in rotation. Connect with frame 3
2 and a boss 35 are connected by an arm 37. The lower end of the rear support rod 38 is pivotally attached to the vertically movable rod 33, and the mounting base 40 is pivotally attached to the upper ends of the front support rod 26 and the rear support rod 38.

Thus, the sorting plate 13 is pivotally attached to the upper surface of the left side of the mounting base 40 via a shaft attachment part 41, a block 42 is pivoted to the right end of the mounting base 40, and an adjustment screw 43 perpendicular to the frame 42 is fixed to the right end of the mounting base 40. are screwed together, and the upper end of the adjusting screw 43 is engaged with the lower end of the sorting plate 13.

39 is an eccentric wheel, and 44 is a rod, and the angle θ between the rod 44 and the support rod 26 is smaller than a right angle.

Next, the structure of the wind sorting section 2 and the hulling section 3 provided on the upper part of the swing type grain sorting section 1 will be explained.
Reference numeral 45 denotes the frame, which is placed above the frame 9 of the swing type grain sorting section 1, and the wind sorting section 2 is provided inside the frame 45. The huller removing section 3 is placed at a position on one side of the upper part of the frame 45.

The hulling section 3 has a pair of rubber rolls 46, 47 inside.
are pivoted in a diagonally vertical relationship, and a supply section 48 for supplying unhulled rice 11 faces between the rubber rolls 46 and 47. 49 is a refill roll, 5
0 is a control plate, and 51 is an on-off valve.

A wind selection section 2 is provided within the frame 45. To explain the structure of the wind selection section 2, the entire structure is formed inside a case 52, the upper ends of which are fixed to the frame 45, the lower ends of the plate springs 53, 53 are fixed to the case 52, and the eccentric parts are attached to the rotating shaft 54. The rod 56 of the ring 55 is connected to the case 5 via the leaf spring 57.
It is fixed at 2.

Therefore, when the eccentric wheel 55 rotates, the rod 56.
The case 52 is reciprocated in the direction of arrow A via the leaf spring 57. A receiving part 58 is formed below the rubber roll 46 and the rubber roll 47 on the upper surface inside the case 52, and a cross-flow fan 59 is provided below the receiving part 58.
is installed. An air suction port 60 is provided above the cross-flow fan 59, and a wind selection chamber 61 is formed at the blow-off portion of the cross-flow fan 59. 62 is the first grain extraction portion, and 63 is the waste grain extraction portion. It is. Also, 64
65 is a suction blower, 65 is a suction port, and 66 is an exhaust port.

(effect) Next, we will discuss the effect.

The tensioning hopper 24 of the supply elevator 5 shown in FIG.
When unhulled rice 11 as a raw material is put into the tank, the unhulled rice 11 ascends the supply elevator 5 and directly flows into the supply tank 4 via the supply gutter 8. Next, when the on-off valve 51 is pulled and opened as desired, it is dropped little by little into the supply section 48 by the feed roll 49 and the adjustment plate 50, and is supplied from the supply section 48 between the rubber roll 46 and the rubber roll 47, and the rice is removed from the hull. and falls into the receiving section 58. Acceptance department 5
The inverted eight-shaped grain board 8 is formed with a very gentle slope, but the case 52 is suspended from the frame 45 with leaf springs 53, 53, and the eccentric wheel 5
5. Since they are swung in the direction of arrow A by the rods 56 and leaf springs 57, even if the slope of the grain board is gentle, both the unhulled rice 11 and the brown rice 12 flow down, receiving the wind from the crossflow fan 59. be sorted out. Therefore,
Light-weight rice husks are sucked through the suction port 65, passed through the suction blower 64, and then discharged from the system through the exhaust port 66.

The mixed grains of unhulled rice 11 and brown rice 12, which have a high specific gravity, are
It flows laterally through the first grain removal section 62 and into the feed hopper 24 of the oscillating sorter 10.

In the swing sorting device 10, when the eccentric wheel 39 is rotated, the angle θ between the rod 44 and the support rod 26 is smaller than the right angle, so the sorting plate 13 moves faster when moving from the front side to the rear side, and when moving from the rear side to the rear side. When moving forward, move slowly.

Therefore, when mixed grains of unhulled rice 11 and brown rice 12 are fed from the supply hopper 32 to the sorting plate 13, the unhulled rice 11 and brown rice 12 are completely mixed grains. As a result, as a primary phenomenon, the brown rice 12 with a heavy specific gravity sinks to the lower layer, and the unhulled rice 11 with a lighter specific gravity floats to the upper layer of the brown rice 12 group, and only the brown rice 12 that has sunk to the lowest layer has a left-sloping protrusion 18 and a right-sloping protrusion 18. It comes into contact with the protrusion 19 .

In this way, the lowermost layer of brown rice 12 that has come into contact with the left inclined protrusion 18 and the right inclined protrusion 19 is influenced by the inclined protrusions 18 and 19, and as a secondary phenomenon, gradually moves to the front wall 16 of the front edge of the sorting plate 13. move in the direction of
A relatively thick layer is deposited on the front half of the sorting plate 13. As a result, the rear half of the sorting plate 13 becomes relatively thin. In this way, when the brown rice 12 accumulates relatively thickly on the front half of the sorting plate 13 and becomes relatively thin on the rear half of the sorting plate 13, the brown rice 12 accumulates in the front half of the sorting plate 13 and becomes relatively thin.
The unhulled rice 11 floating on the surface of the plate 2 slides on the surface of the brown rice 12 which is inclined and moves toward the rear half of the sorting plate 13.

The state of this secondary phenomenon is adjusted by rotating the screw rod 28. That is, when the screw rod 28 is rotated,
The pieces 31, 32, which are threaded into the counter-threaded grooves 29, 30, move toward and away from each other, so that the arms 36, 37 become inclined or vertical. Therefore, the vertically movable rod 33 is moved up and down by the arms 36 and 37, and the rear support rods 38 and 38 are moved up and down, so that the sorting plate 13 is moved up and down.
The front and rear inclinations are adjusted.

As a tertiary phenomenon, when the above operation is repeated, the brown rice 12 thickly deposited on the front half of the sorting plate 13 is moved to the left side along the front wall 16 by the action of the tip of the left inclined projection 18. Start moving. At this time as well, the inclined protrusion 1 on the plate surface of the sorting plate 13
The brown rice 12 in contact with the surfaces 8 and 19 continues to be subjected to the sorting action described above while moving to the left, so as it moves along the front wall 16, the brown rice 12 gradually
The layer increases in thickness, so that part of the upper layer of the brown rice 12 flows backwards toward the rear half of the sorting plate 13, and when the brown rice 12 reaches the left end of the sorting plate 13, the purity is low. The quality of the brown rice 12 is gradually improved until only the perfect brown rice 12 is taken out to the brown rice outlet 20. In this case, the movement of the brown rice 12 in the direction of the brown rice outlet 20 is solely carried out by the tip of the left inclined protrusion 18. However, since the left inclined projection 18 has a much larger area than the right inclined projection 19, the brown rice 12 can be transferred reliably.

On the other hand, the unhulled rice 11 slides over the upper layer of the brown rice 12 on the slope and accumulates on the rear half of the sorting plate 13, but in the rear half of the sorting plate 13, it is affected by the action of the right inclined protrusion 19 as a quaternary phenomenon. It is transferred to the right side of the sorting plate 13. However, due to the action of the right inclined protrusion 19, the unhulled rice 11 is advanced to the right side of the sorting plate 13, and the secondary phenomenon is still being sorted, so the purity of the unhulled rice 11 gradually increases as it advances toward the unhulled rice outlet 22. , finally complete unhulled rice 11
The unhulled rice is then taken out through the unhulled rice take-out port 22.

The above tertiary phenomenon, that is, brown rice outlet 2 of brown rice 12
The movement in the 0 direction and the quaternary phenomenon, that is, the movement of unhulled rice toward the unhulled rice outlet 22, are performed by adjusting the left and right inclinations of the sorting plate 13. That is,
By rotating the adjustment screw 43, the horizontal inclination of the sorting plate 13 is adjusted, and depending on the degree of inclination, the tertiary phenomenon and the quaternary phenomenon can be finely adjusted.

During this time, the mixed grains are deposited in the center of the sorting plate 13, rotate around, and are only metabolized with the newly supplied mixed grains, but do not come out of the sorting plate 13. Therefore, there is no need to take measures against mixed grains, which was necessary in the past.

The brown rice 12 taken out to the brown rice take-out port 20 flows into the take-out elevator 6 through the gutter and is taken out.

(Effects) The present invention comprises a swinging type grain sorting section 1 provided at the lowest position, a wind sorting section 2 that is loaded and superposed on the top of the swinging grain sorting section 1, and an upper part of the wind sorting section 2. The oscillating type grain sorting section 1 consists of a hulling section 3 which is loaded and polymerized, and a feeding elevator 5 and a take-out elevator 6 provided on the side. The mixed grains of paddy and brown rice are separated into left and right sides without taking out the middle grains, and a brown rice outlet 20 is formed on one left and right side and a hulled rice outlet 22 is formed on the other left and right side, and the hulled rice outlet 22 is connected to the feeding elevator. 5, the brown rice take-out port 20 is connected to the lower part of the take-out elevator 6, and the supply gutter 8 of the supply elevator 5 is connected to the hull-hulling section 3. The structure includes a wind sorting section 2 that is loaded and polymerized on the top of the swinging type grain sorting section 1, and a hulling section 3 that is loaded and polymerized on the top of the wind sorting section 2. Since it can be formed to the same size as grain part 1,
A sufficient wind selection effect can be expected.

(b) The structure is simple because the elevators are only the supply elevator 5 and the take-out elevator 6, and there is no circulation elevator.

C. The oscillating grain sorting section 1 has a structure in which when the sorting plate 13 is swung back and forth, the mixed grains of paddy and brown rice are separated into the left and right sides without taking out the intermediate grains, and the brown rice outlet 20 is provided on the left and right sides. Since the unhulled rice outlet 22 is formed on the other side, the structure is simple.

This effect is achieved.

[Brief explanation of the drawing]

Fig. 1 is a side view of the whole, Fig. 2 is a front view of the whole, Fig. 3 is a plan view of the sorting plate of the present invention, Fig. 4 is a plan view of the function of the sorting plate of the present invention, and Fig. 5 is a plan view of the sorting plate of the present invention. Fig. 6 is a front view of the oscillating sorting device, Fig. 7 is a sectional view of the sorting plate, Fig. 8 is a sectional view of the operation of the sorting plate, and Fig. 9 is a diagram of the wind sorting section. Side view, No. 10
The figure is a cross-sectional view of the wind selection section, Figure 11 is the same action diagram, and Figure 1
FIG. 2 is a perspective view of the frame. Explanation of the symbols: 1...Occillating grain sorting unit, 2...Wind sorting unit, 3...hulling unit, 4...Supply tank, 5...Elevator for supply, 6...Elevator for takeout, 7... ... Hopper for tensioning, 8 ... Supply gutter, 9 ... Frame, 10
....Obcillating sorting device, 11 .... Paddy rice, 12 .... Brown rice, 13 .... Sorting board, 14 .... Front and rear width, 15 ....
Left and right width, 16...front wall, 17...rear wall, 18...
Left inclined protrusion, 19... Right inclined protrusion, 20... Brown rice outlet, 21... Left wall, 22... Paddy rice outlet, 2
3... Right wall, 24... Supply hopper, 25... Abutment, 26... Front support rod, 27... Shaft attachment part, 28...
...screw rod, 29...opposite thread groove, 30...opposite thread groove, 31, 32...piece, 33...vertical movement rod, 3
4, 35... Boss, 36, 37... Arm, 38
... Rear support rod, 39 ... Eccentric wheel, 40 ... Mounting base, 41 ... Axis mounting, 42 ... Top, 43 ... Adjustment screw rod, 44 ... Rod, 45 ... Frame, 46
...Rubber roll, 47...Rubber roll, 48...
Supply section, 49... Feeding roll, 50... Adjustment plate,
51... Opening/closing valve, 52... Case, 53... Leaf spring, 54... Rotating shaft, 55... Eccentric wheel, 56...
Rod, 57...Plate spring, 58...Receiving part, 59
...Cross flow fan, 60...Suction port, 61...Wind selection chamber, 62...First grain removal section, 63...Waste grain removal section, 64...Suction blower, 65...Suction port,
66...Exhaust port.

Claims (1)

[Claims] 1. A swinging type grain sorting section 1 provided at the lowest position;
A wind sorting section 2 that is loaded and polymerized on the upper part of the swing type grain sorting section 1, a hulling section 3 that is loaded and polymerized on the upper part of the wind sorting section 2, and a feeding elevator 5 and a take-out machine provided on the side. The rocking type grain sorting section 1
is structured so that when the sorting plate 13 is swung back and forth, the mixed grains of paddy and brown rice are separated into left and right sides without taking out intermediate grains, and a brown rice outlet 20 is provided on one left and right side, and a paddy and rice outlet 22 is provided on the other side. the unhulled rice outlet 22 is connected to the lower part of the supply elevator 5, the brown rice outlet 20 is connected to the lower part of the take-out elevator 6,
A hulling device in which a supply gutter 8 of the supply elevator 5 is connected to the hulling section 3.