JPS6320078A - Rotary sorting device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rotary sorting device that separates mixed rice scraped out in a husking section into paddy and brown rice.

[Prior art] A rotary sorting device that scoops up mixed rice through a pot hole formed on the inner circumferential surface of a rotary sorting cylinder, collects the brown rice that is lifted high into a finished rice trough, and separates and sorts it from the paddy that falls out from the pot hole at a lower level. The pot hole has the same shape from the supply side to the discharge side, or has a diameter that gradually increases from the mixed rice supply side to the discharge side (for example, Japanese Utility Model Application No. 151649/1983).

[Problems to be Solved by the Invention] However, in any of the above embodiments, the return shelf that receives the mixed rice that falls off at a lower level and returns it to the front side of the rotating sorting cylinder is fixed, so the mixing Depending on conditions such as the difference in the thickness of the mixed rice stack from the rice supply side to the discharge side and the mixture of large and small grains, the amount of grains received in the above-mentioned return shelf and the ratio of brown rice to paddy vary, and the supply It is not possible to obtain similar sorting accuracy from the side to the discharge side.

[Means for Solving the Problem] This invention solves the above-mentioned drawbacks, and has a large number of pot holes on the inner peripheral surface to scoop up mixed rice while rotating around a horizontal axis, and convert brown rice to finished rice. The gutter 16 is provided with a rotating sorting cylinder 10 for collecting rice, and the pot hole has a small diameter or shallow hole 11 on the supply side of the mixed rice, and a large diameter or deep hole 12 on the discharge side, so that the mixed rice falls out from the pot hole at a low level. The reducing machine 19 and 20 that should guide the mixed rice to the forward rotation side of the rotary sorting cylinder 10 is divided into the above-mentioned supply side and discharge side, and the height of each grain receiving side is independently changed and adjusted. The rotary sorting device may be configured as follows.

[Operation of the invention] The mixed rice supplied to the rotating sorting cylinder is scooped up by the pot hole and rises, and the brown rice that falls out of the pot hole at a high position is collected in the finishing rice gutter and becomes paddy or brown rice that falls off at a relatively low position. A part of the mixed rice is received by the reducing machine and returned to the front side of the rotating sorting tube, while the remainder falls into the mixed rice accretion layer and is scooped up again and subjected to the sorting action.

Since the pot holes on the supply side are small diameter or shallow holes, small-grain brown rice that tends to sink to the lower layer of the mixed rice deposit layer can easily fit into the pot hole, and paddy and large-grain brown rice tend to flow to the discharge side, so the supply side of the mixed rice deposit layer can easily fit into the pot hole. Prevent stagnation. On the other hand, since the pot hole on the discharge side has a large diameter or a shallow hole, it is possible to scoop up and sort large grains of brown rice flowing toward the discharge side.

The reducing machine is configured to be separated into a supply side and a discharge side, and the height of the grain receiving side can be changed independently for each side, so that the top of each reducing shelf is set and maintained at a state with a high proportion of brown rice for sorting. .

[Effects of the invention] The shape of the pot holes on the mixed rice supply side and the discharge side are made different, and in order to accommodate this, the reducing machine is formed separately, and the height on the grain receiving side can be independently changed and adjusted. Therefore, even if the mixed rice supplied to the rotary sorting cylinder contains both large and small grains, the supply side first separates and sorts the small grains that tend to sink to the bottom layer, and promotes the transfer of large grains to the discharge side. Properly setting the return shelf allows for early recovery of small grain brown rice. On the other hand, on the discharge side, large grains are mainly processed, and by appropriately setting the discharge side return shelf, sorting work can be carried out while reducing the mixing of small grains, especially paddy, into the finished rice trough.

[Example code] An embodiment of this invention will be described based on the drawings.

1 is a de-culling section 1, which includes a paddy supply funnel 2, a pair of de-culm rolls 3,
3rd prize. A dust exhaust air passage 4 is formed below the culling section 1, and the rice husks mixed in the discharged rice are discharged to the outside of the machine via a dust exhaust pipe 6 by a suction fan 5, and strings, etc. It is configured to accumulate downward from the middle of road 4.

゛The mixed rice of paddy and brown rice that has been removed falls into the receiving trough 7 below. 8 is a grain lifting machine connected to this.

Reference numeral 9 denotes a sorting machine frame, in which rotary sorting filters having a large number of potholes on the inner peripheral surface are provided so as to be rotatable around the horizontal axis. As for the pot holes, the one on the mixed rice supply side is a small diameter or shallow hole 11, and the one on the discharge side is a large diameter or deep hole 12,
The standard hole 13 is formed in the middle part.

The machine frame 9 is provided with a mixed rice transfer gutter 14 with its upper surface open so as to be located inside the rotary sorting cylinder 10, and the starting end side of the gutter 14 allows the terminal opening of the grain lifting machine 8 to be seen. spiral 15
The mixed rice is transferred to the supply side A of the rotary sorting cylinder 10 (the rear side of the machine frame 9).

Reference numeral 16 denotes a finishing rice gutter installed parallel to the mixed rice transfer gutter 14, which is equipped with a transfer spiral 17, and is connected with a control valve 18 whose angle can be adjusted arbitrarily. The mixed rice is scooped up in the pot hole of the rotary sorting cylinder 10, and the falling brown rice is lifted up high and transferred to the finishing rice trough 16 over the control valve 18, where it falls off at a low position and is deposited in the mixed rice falling layer at the bottom. It is structured so that it is separated from the returned paddy.

19 is a reducing machine corresponding to the small diameter to shallow hole 11 range on the supply side A of the pot holes, 2o is a reducing machine corresponding to the large diameter to deep hole 12 range on the discharge side opening, and 21 is located in the middle of these. These reducing machines 19, 20.
．． 22, the tip side (grain receiving side) via the same support shaft 23
Supported so that the height can be changed. 24 to 26 are each reduction 1[
This is an adjustment arm that independently rotatably supports 19 to 21, and the fastening hole is formed into an elongated hole, so that it can be tightened and fixed to the supply-side side wall of the sorter frame 9.

An annular body 27 is connected to the discharge side end of the finishing rice gutter 16 so as to rotate together, and grain lifting blades 28, 28, etc. are installed at predetermined intervals on the inner peripheral surface of the annular body 27. It is configured to scoop up the paddy containing unrecovered brown rice that has reached the discharge side end of the rotary sorting cylinder 10.

Reference numeral 29 denotes a reducing hole opened in the front wall of the sorter frame 9, and a tilt reducing machine 30 is provided corresponding to the width of the reducing hole 29 to receive the paddy etc. scooped by the grain lifting blades 28, 28, etc. be.

Also, get off! The rear wall of the supply funnel 2 of the first part 1 is connected to the front part of the sorter frame 9, and the rice grains etc. flowing down from the slope reducing machine 3o are returned to the second part of the supply funnel.

31 is a brown rice flowing down tube that extends toward the terminal end of the finishing rice gutter 16; 32
3 is a brown rice receiving trough, and 33 is a brown rice frying barrel.

Reference numeral 34 denotes a motor that drives the El removing rolls 3.3,..., the suction fan 5, the rotating and sorting parts, the grain transfer, and the like.

The action of the upper side will be explained.

When the motor 31 is started and paddy is supplied to the paddy supply funnel 2,
De-170-Detach while passing between 3 and 3! l processed,
The fallen rice is air-selected as it flows down the dust exhaust air channel 4, and the rice husks and husks are separated and removed. The mixed rice of paddy and brown rice passes through the receiving trough 7 and the grain lifting machine 8, and is then supplied to the mixed rice transfer trough 14 of the rotary sorting section. Further, by the feeding action of the transfer spiral 15, the particles are sequentially transferred and reach the supply side A of the rotary sorting tube 10.

The rotary sorting and sorting cylinder 10 rotates in a fixed direction and scoops up the mixed rice in the pot hole. The brown rice rises to a high position and the control valve 18
and fall into the finishing rice gutter 16. In addition, the paddy grains also try to be scooped up in the pot hole, but because they are long grains and have a high center of gravity, they fall off at a lower position than the brown rice falling position.

The above-mentioned paddy tends to fall out of the pot hole at a relatively low position,
The brown rice that cannot pass through the control valve 18 and falls off falls directly into the mixed rice stack, but some of it falls into the mixed rice transfer gutter 14 and is returned to the supply side A, or is transferred to the reducing machines 19 to 21. , and is returned to the forward rotation side of the rotary sorting tube 10 to undergo the sorting action again.

By the way, since the pot hole is a small-diameter to shallow hole 11 on the supply side A, it is necessary to separate and sort small grains, especially small grain brown rice, which tend to sink to the bottom layer, out of the mixed rice to be sorted, which contains a mixture of large, medium, and small grains. On the other hand, it promotes the transfer of medium and large grains from the upper layer to the discharge side, thereby preventing stagnation of mixed rice on the supply side.

Further, in the middle part where the standard hole 13 is formed, medium-grain and remaining small-grain brown rice can be separated and sorted, and at the discharge side port, large-grain brown rice remaining in the large-diameter or deep hole 12 can be recovered.

The distribution of the scooped-up mixed rice grains and the falling powder from the pot hole at the supply side A, the middle part, and the discharge side outlet has approximately the same tendency in each part. For example, on the supply side A, small grain brown rice is being scooped up actively and・Large grains fall off quickly, and the mixed rice layer on the discharge side is a thin layer. However, most of the small and medium grain brown rice is not separated and collected, so in addition to the large grain brown rice, there are uncollected small and medium grains in the paddy. Brown rice is scattered here and there, and paddy scooping is quite active.

Reducing machines 19 to 21 are installed separately on the supply side, the middle part, and the discharge side, but the installation angle can be set according to the grain distribution tendency described above. In B, the height of the grain receiver is set high so that only small grains, especially brown rice, are returned, and the height of the grain receiver is set low at the discharge side port to increase the sorting effect of brown rice. In addition, if the amount of reduction in the reducing machine 20 at the discharge side outlet where the proportion of rice is high is increased, the amount of rice mixed in from the Kuba finishing rice trough 16 tends to increase, so this should be taken into account and adjusted appropriately.

In addition, a detector is installed to detect the amount or ratio of paddy and brown rice on each reduction shelf 19 to 21 and the degree of distribution of large and small grains.
By setting 9, 2o, and 21 angles, you can collect finished rice with high precision.

The brown rice is taken out of the machine through a brown rice flow tube 32, a brown rice gutter 33, and a grain lifting machine 34.

At the discharge side end of the rotary sorting tube 10, paddy and uncollected brown rice remain, but m-grain blades 28, 28, . . . on the inner peripheral surface of the annular body 27 remain.
・The rice is scooped up and raised, received by the inclined reduction M30, and returned to the second part of the paddy supply funnel.

In this example, three types of pothole shapes were formed, including small diameter, erosion, and a1'Il! The holes may be formed in two types, such as standard holes and large-diameter or deep holes, or four or more types.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view of the entire body, FIG. 2 is a back sectional view thereof, and FIGS. 3 and 4 are enlarged views of essential parts. In the figure, 10 is a rotary sorting cylinder, 11 is a small diameter or eroded hole, 12 is a large diameter or deep hole, 13 is a standard hole, 16 is a finishing rice gutter, and 19- 21 indicates a reduction machine.

Claims (2)

[Claims] (1) A rotary sorting cylinder 10 is provided which has a large number of potholes on its inner circumferential surface and scoops up mixed rice while rotating around a horizontal axis, and collects brown rice into a finished rice gutter 16. The rice supply side A is formed as a small-diameter or shallow hole 11, and the discharge side B is formed as a large-diameter or deep hole 12.
The reduction shelves 19 and 20 to be guided to the front side of the rotation of the rotor 0 are divided into the supply side A and the discharge side B, and the heights of the grain receiving sides can be independently changed and adjusted. Sorting device. (2) A pot hole of the standard hole 13 is formed in the intermediate part between the supply side A and the discharge side B of the rotary sorting cylinder 10, and the intermediate reduction shelf 21 is fixed to correspond to this, or the height of the grain receiving side is increased. The rotary sorting device according to claim 1, wherein the rotary sorting device is provided so as to be changeable and adjustable.