JPH0141384B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a rotary sorting paddy in which paddy is removed in a hulling mechanism, the rice husks are air sorted in an air sorting section, and then only brown rice is sorted and taken out. It is related to the sliding machine.

[Conventional technology]

Conventionally, this type of huller sorting equipment often used a swinging sorting mechanism to sort brown rice.
This oscillating sorting mechanism has drawbacks such as large size and high vibration and noise, so the prior art Japanese Utility Model Application Publication No. 57-119784 or Japanese Patent Application Laid-open No. 58-74174 is an exception to this. In order to sort the brown rice from the rice that has been washed away, we use a rotary sorting mechanism that is equipped with a brown rice catcher inside a horizontally rotating sorting cylinder with a number of depressions formed on its inner circumferential surface. As a rotary sorting huller using a sorting mechanism, a wind-selecting section for removing rice that has fallen from the hulling mechanism is installed at the bottom of the hulling mechanism equipped with a paddy supply hopper, On the other hand, a rotary sorting mechanism equipped with a brown rice receiving gutter is installed inside a horizontally rotating sorting cylinder with many indentations formed on the inner circumferential surface.
One end of the sorting cylinder on the side of the hulling mechanism is formed on the paddy discharge side, and the other end of the sorting cylinder is formed on the scraped rice supply side. A dropped rice transfer gutter equipped with a built-in spiral conveyor is provided to transport the dropped rice from the wind selection section to the supply side, and the dropped rice after wind selection in the wind sorting section is transferred to the dropped rice transfer gutter using a dropped rice thrower. We are proposing to supply.

In these prior art methods, when the fallen rice after wind selection is transferred and supplied to the fallen rice transfer trough in the rotary sorting mechanism by the fallen rice thrower, the thrown rice thrown by the fallen rice thrower is In order to prevent the flow state of the scraped rice in the sorting cylinder from being disturbed by this, a side plate on the side of the hulling mechanism in the cover case covering the sorting cylinder has
A supply tank whose bottom part communicates with the dropped rice transfer gutter is provided at a portion higher than the paddy supply hopper in the front hulling mechanism, and the upper end of the dropped rice thrower is connected to the upper part of the supply tank. The wind is configured to be decelerated within the supply tank.

[Problem that the invention seeks to solve]

However, in this method of decelerating the thrower wind in the dropped rice thrower in the supply tank provided on the side of the cover case, since the supply tank is required, the rotary sorting huller is This results in an increase in size and an increase in manufacturing costs.

Moreover, since the supply tank is provided at a higher position than the paddy supply hopper in the hulling mechanism, the height of lifting of the washed-out rice by the thrown-off rice thrower is increased, so that it is difficult to drive the washed-off rice thrower. Not only did the power required increase, but the size of the rice thrower itself also increased.

The present invention proposes to eliminate the supply tank in the prior art when transferring the dropped rice after wind selection to the dropped rice transfer gutter in the sorting cylinder by the dropped rice thrower. .

[Means for solving problems]

In order to achieve this objective, the present invention provides a hulling mechanism with a funnel-shaped paddy supply hopper on its upper surface.
A wind sorting unit is provided for removing the rice that has fallen from the hulling mechanism, and a brown rice receiving trough is installed on the side of the hulling mechanism in a horizontally rotating sorting cylinder that has a number of depressions formed on its inner circumferential surface. one end of the sorting cylinder on the side of the hulling mechanism is formed on the paddy discharge side, and the other end of the sorting cylinder is formed on the scraped rice supply side, In the rotary sorting huller, which is equipped with a rice transfer gutter having a built-in spiral conveyor in the sorting cylinder for transferring the rice from the discharge side to the supply side, A dropped rice thrower for frying rice is installed approximately parallel to the side plate on the side of the hulling mechanism in the cover case covering the sorting cylinder, and the upper end outlet of the dropped rice thrower is connected to the It is located in the lower space of the paddy supply hopper in the sliding mechanism, and the slower wind from the upper end exit blows out a portion near the outer periphery of the spiral conveyor in the sliding rice transfer gutter along the approximate axis direction thereof. The structure is such that it looks inside the fallen rice transfer gutter.

[Action/effect of the invention]

In this way, the upper end outlet of the dropped rice thrower is arranged so that the thrower wind from the upper end of the dropped rice thrower blows out along the axial direction of the area near the outer periphery of the spiral conveyor in the dropped rice transfer gutter. When looking into the dropped rice transfer gutter, the thrower wind from the upper end outlet of the dropped rice thrower comes into contact with the spiral blades of the spiral conveyor, and its flow velocity is reduced, and the axial width of the sorting cylinder is reduced. Since the rice can be dispersed over a wide area, it is possible to reliably prevent the adverse effect of the thrower wind on the flow state of the washed-out rice in the sorting cylinder, without using a supply tank as in the prior art.

Furthermore, by locating the upper end outlet of the dropped rice thrower in the lower space of the paddy supply hopper in the hulling mechanism, the height of the lifted rice of the dropped rice in the dropped rice thrower is lower than that of the prior art. In this way, the height is much lower than that in the case where the supply tank is provided at a higher part of the rice hulling mechanism than the rice supply hopper, and the upper end outlet of the rice thrower is connected to the upper part of the supply tank.

Therefore, according to the present invention, the supply tank provided between the dropped rice thrower and the dropped rice transfer gutter in the prior art can be omitted, so the rotary sorting huller can be made smaller and lighter. At the same time, it is possible to reduce the manufacturing cost, and since the height of the rice being lifted in the rice thrower is lower, the power required to drive the rice thrower can be reduced, and The rice thrower itself also has the effect of being smaller and lighter.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral a indicates a hulling mechanism, reference numeral b indicates a wind sorting unit, and reference numeral c indicates a rotary sorting mechanism, which will be described in detail later. a and rotary sorting mechanism c
are arranged in parallel on the upper surface of the wind selection section b.

The hulling mechanism a is provided with a funnel-shaped paddy supply hopper 1 on the upper surface, and a pair of left and right derollers 2 inside, while the wind selection section b is equipped with a plurality of grain grain boards 3, 4, 5, 6, a wind selection passage 7, and a rice scraping conveyor 11, and a suction dust exhaust fan 10 that takes in atmospheric air from an intake port 9, and further includes a Shiina wind selection passage 12, a brown rice flow plate 13, and a brown rice wind selection passage. 8
A scrap rice take-out path 14 is also provided, and a scrap rice thrower 30 is connected to one end of the scrap rice conveyor 11.

Reference numeral 15 in the figure indicates a large number of depressions 16 on the inner circumferential surface.
It shows a horizontal sorting cylinder whose both ends are rotatably supported in the cover case 34 by drive wheels 17 and 18, and one end of the sorting cylinder 15 farther from the hulling mechanism a. is located on the supply side X, and the other end near the hulling mechanism a is located on the discharge side Y.

Reference numeral 19 in the figure indicates a top-open type dropped rice transfer gutter installed in the sorting cylinder 15 from the supply side X to the discharge side Y; 2A and 2B show top-open brown rice receiving troughs installed from the supply side is a spiral conveyor 21 for transporting the fallen rice entering the conveyor from the discharge side Y toward the supply side X, and then supplying it to the supply side X in the sorting cylinder 15 from the drop port 23 at one end.
A spiral conveyor 22 is provided in the brown rice receiving trough 20 to transport the brown rice received therefrom from the supply side X to the discharge side Y. Discharge side Y in gutter 6
One end portion thereof communicates with the brown rice flow down plate 13 via a brown rice take-out chute 31.

This brown rice removal chute 31 has a switching valve 3 for switching the brown rice removal chute 31 to either the brown rice flow down plate 13 or the grain flow plate 6.
2 is provided.

In addition, the said fallen rice transfer gutter 19 and the brown rice receiving gutter 20
The cover case 34 is provided with selection control valves 24 and 25 which are rotatably adjusted from the outside, and further,
Remaining rice discharge valves 19a and 20a are provided at the bottoms of the fallen rice transfer gutter 19 and brown rice receiving gutter 20, respectively.

On the other hand, on the inner circumferential surface of the sorting cylinder 15 on the discharge side Y, a plurality of scooping blades 26 are provided at appropriate intervals in the circumferential direction. In addition, this scooping blade 2
An annular weir plate 27 is provided on the outside of the tank 6 to prevent rice from overflowing.

Further, the reference numeral 28 in the figure indicates the scooping blade 26
shows a paddy reducing chute for returning the paddy scooped up to the paddy supply hopper 1 in the hulling mechanism a, and the paddy reducing chute 28 is connected to the side plate ca of the cover case 34 on the side of the hulling mechanism a. It communicates with the paddy supply hopper 1 through a through hole 29 bored in the hopper.

And the upper end outlet 3 of the dropped rice thrower 30
The thrower wind from the upper end outlet 30a is applied to the portion of the side plate ca of the cover case 34 on the side of the hulling mechanism a that faces the lower space of the paddy supply hopper 1 in the hulling mechanism a. A portion of the fallen rice transfer gutter 19 close to the outer periphery of the spiral conveyor 21 is connected so as to eject the rice roughly along its axial direction.

In addition, the reference numeral 33 in the figure is a power transmission mechanism from the hulling mechanism a to the rotary sorting mechanism c.

Thus, the paddy supplied to the paddy supply hopper 1 is removed by the hulling mechanism a, and then is removed by the wind selection section b.
The rice is wind-selected to remove the paddy grain. After this wind sorting, the fallen rice is fried by the fallen rice thrower 30 into the discharge side Y of the fallen rice transfer gutter 19 in the sorting cylinder 1, and transferred to the spiral conveyor in the fallen rice transfer gutter 15. After being transferred in the direction of the supply side X at 21, it is supplied to the supply side X inside the sorting cylinder 1.

The fallen rice supplied into the sorting cylinder 15 in this way is scraped up to a certain height by the rotation of the sorting cylinder 15 in the direction of arrow A, and then falls down repeatedly as shown by arrow B. It moves toward the discharge side Y. During this movement, the brown rice in the sliding rice falls into the hollow 16 and falls from a high position, and enters both the sliding rice transfer gutter 19 and the brown rice receiving gutter 20. The brown rice that has entered the machine is taken out of the machine via the brown rice take-out chute 31, while the brown rice that has entered the sushi rice transfer gutter 19 together with some paddy is mixed with sushi rice that is fried from the sushi rice thrower 30. Since they are returned together to the supply side within the sorting cylinder 15, the ratio of dropped rice to paddy inside the sorting cylinder 15 can be reduced.

In addition, the scraped rice that moves to the discharge side Y while flowing inside the sorting cylinder 15 has a higher proportion of paddy as it approaches the discharge side Y, and on the discharge side Y, it becomes almost only paddy, and is scooped out by the scooping blade 26. After being raised, the rice is returned to the rice supply hopper 1 in the hulling mechanism a through the rice reduction chute 28, and is removed again.

The thrower wind from the upper end outlet 30a of the fallen rice thrower 30 is transferred to the fallen rice transfer gutter 1.
9, a portion close to the outer periphery of the spiral conveyor 21 is ejected along its axial direction, collides with the spiral blades of the spiral conveyor 21, and its flow velocity is reduced, and at the same time Since it can be dispersed over a wide area, when the thrower wind from the dropped rice thrower 30 is directly introduced into the sorting cylinder 15, the throwing wind can spread the rice into the sorting cylinder 1.
This makes it possible to prevent the flow of the fallen rice from being disturbed within the container.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the entire rotary sorting huller, and FIG. 2 is A of FIG. 1.
-A sectional view, FIG. 3 is a BB sectional view of FIG. 1, and FIG. 4 is a front view of main parts of the rotary sorting huller. a...husking mechanism, 1...paddy supply hopper, b...
... Wind sorting section, c ... Rotary sorting mechanism, 15 ... Sorting cylinder, X ... Supply side, Y ... Supply side, 16 ... Hollow, 19 ... Dropped rice transfer gutter, 20 ... Brown rice Receiving gutter, 21, 22...Spiral conveyor, 34...Cover case, Ca...Side plate on the side of the hulling mechanism in the cover case, 30...Slipped rice thrower, 30a
...The upper end exit of the sliding rice thrower.

Claims (1)

[Claims] 1 At the bottom of a hulling mechanism equipped with a funnel-shaped paddy supply hopper on the upper surface, a wind-selecting section for removing the rice that has been scraped from the hulling mechanism is provided, and on the side of the hulling mechanism, an inner circumferential surface is provided. A rotary sorting mechanism equipped with a brown rice receiving trough is disposed inside a horizontally rotating sorting cylinder having a large number of depressions formed therein, and one end of the sorting cylinder on the side of the hulling mechanism is placed on the side of paddy discharge. , the other end of the sorting cylinder is formed on the supply side of the fallen rice, and inside the sorting cylinder there is a fallen rice transfer gutter having a built-in spiral conveyor for transferring the fallen rice from the discharge side to the supply side. In the rotary sorting huller, a dropped rice thrower for frying dropped rice in the wind sorting section is connected to a side plate on the side of the hulling mechanism in a cover case that covers the sorting cylinder. The upper end outlet of the dropped rice thrower is located in the lower space of the paddy supply hopper in the hulling mechanism, and the thrower wind from the upper end outlet flows into the dropped rice transfer gutter. A rotary sorting rice hulling machine characterized in that a part near the outer periphery of the spiral conveyor is made to look into the dropped rice transfer gutter so as to eject rice along the substantially axial direction of the spiral conveyor.