JPS6372383A - Cereal grain selector - 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 grain sorting device for sorting mixed rice of paddy and brown rice using a rotating sorting cylinder having a large number of pot holes on its inner circumferential surface. It is something.

[Prior art] There is a grain sorting machine that sorts a mixed rice of paddy and brown rice by rotating a rotary sorting tube, which has a large number of pot holes on its inner circumferential surface, around a horizontal axis. There is a finishing rice gutter suspended horizontally to receive the brown rice.

[Problems to be solved by the invention] In this conventional device, the brown rice that has been pumped up high through the pot hole of the rotating sorting tube is received by the finishing rice gutter.

In addition, the unhulled rice that is pumped up at a low level falls into the rotating sorting cylinder again, and the mixed rice is sorted into brown rice and unhulled rice.The sorted unhulled rice is discharged from the discharge side of the rotating sorting cylinder. Due to the high moisture content of the supplied grains or the difference in variety, the movement speed of the grains to be sorted from the supply side to the discharge side changes, and the grains to be sorted stay on the supply side, causing the layer thickness to increase. There was a problem in that the rice became thicker and unhulled rice fell into the finishing rice trough, reducing the sorting accuracy.

Therefore, the present invention detects the flow state of the grains to be sorted on the supply side of the rotary sorting cylinder, and drives the transfer means only when the flow state of the grains to be sorted is poor and tends to stagnate on the supply side. The grains to be sorted are forcibly transferred to the discharge side to equalize the layer thickness of the grains to be sorted and improve the sorting accuracy.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is to horizontally move the finished rice gutter 16 to receive the brown rice in the rotary sorting cylinder 11, which has a large number of pot holes formed on the inner peripheral surface and rotates around a horizontal axis. A transfer means 23 for transferring the grains to be sorted from the supply side to the discharge side is provided below the rotary sorting tube 11, and a layer thickness detection means 2 provided on the supply side of the rotary sorting tube 11.
6 and the drive device 25 of the transfer means 23 are connected in a related manner to constitute a grain sorting device.

[Function and effect of the invention]

The mixed rice in the rotary sorting cylinder 11 is subjected to a sorting action while being drawn up by the pot hole of the rotary sorting cylinder 11.

It sequentially flows from the supply side end to the discharge side end of the rotating sorting tube 11, but due to the high moisture content of the grains to be sorted or the difference in variety, the grains to be sorted flow from the supply side to the discharge side. When the moving speed of the layer changes and grains to be sorted stay on the supply side and the layer thickness on the supply side becomes thick, the layer thickness detection means 2
6 detects that the layer thickness of the grains to be sorted has become thicker, and drives the transfer means 23 to forcibly transfer them to the discharge side to equalize the layer thickness. Finished rice gutter 16
It is possible to prevent unhulled rice from falling into the rice bowl and improve the accuracy of sorting.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

First, the structure of the embodiment will be described. Reference numeral 1 denotes a husking section, and this husking section 1 is connected to a paddy tank 2. A pair of depu rolls 3
, 3, etc. Reference numeral 4 denotes a sloughed rice wind sorting path, in which the sloughed rice from the husking section 1 is sorted by the sorting air generated by the suction fan chamber 5 in front, and the rice husks are passed from the suction fan chamber 5 through the dust exhaust pipe 6. Discharged from the machine, the mixed rice of brown rice and paddy falls into the sliding rice receiving gutter 7 below, and the mixed rice that has fallen into the sliding rice receiving gutter 7 is also transferred to the mixed rice receiving gutter in the mixed rice grain lifting machine 8. It is configured to be transported to the starting end of the supply gutter 14 which also serves as the feeder.

Reference numeral 10 denotes a sorting case, and inside the sorting case lo, there is a supply side end (as shown in FIG. The right side) and the discharge side end (left side in FIG. 1) are rotatably supported by drive rollers 12.12. A supply gutter 14 with a feed helix 13 and a finishing rice gutter 16 with a finished rice helix 15 are horizontally disposed inside the rotary sorting cylinder 11.

In arranging the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting tube 11, the supply gutter 14 is placed on the scooping side of the rotary sorting tube 11 rotating from the bottom to the top, as shown in FIG. In addition, a finishing rice gutter 16 is arranged on the side of the rotary sorting cylinder 11 that rotates from above to below, so that the mixed rice scooped up by the pot hole of the rotary sorting cylinder 11 falls into the supply gutter 14 and is supplied by the supply helix 13. It is configured to be transferred to the terminal side of the gutter 14, and the supply gutter 14 also functions as a mixed rice receiving gutter. The discharge side end of the finished rice 4116 is connected to the finished rice flow down tube 17.
, are connected to the finished rice receiving trough 19 via the finishing rice flow grain plate 18, and the finished rice is wind-selected while falling from the finishing rice flow lower tube 17 and the finishing rice flow grain plate 18 to the finished rice receiving trough 19. The brown rice that has flown down to the finished rice receiving trough 19 is taken out of the machine via the finished rice lifting machine 20.

A pumping cylinder 21 is connected to the discharge side end of the rotary sorting cylinder 11. Reference numeral 22 indicates a paddy return value, and the upper end of the paddy return value 22 extends to a position below the pumping of the pumping cylinder 21 on the side of the rotary sorting cylinder 11 to remove the paddy that has been pumped upward by the pumping cylinder 21. , has a function of returning to the de-peeling section 1.

Reference numeral 23 denotes a grain transfer helix disposed below the supply gutter 14 and the finishing rice gutter 16 on the supply side of the rotary sorting cylinder 11. Both ends of the grain transfer helix 23 Support member 24.2 hanging downward from rice gutter 16
4, and is rotatably supported by a helical drive motor 25.
It can be driven in rotation. Note that this grain transfer helix 23 only needs to have the function of transferring the grains from the supply side to the discharge side, and may be a spring conveyor or a conveyor belt.

Reference numeral 26 denotes a layer thickness detecting means disposed below the supply gutter 14 on the supply side of the rotary sorting tube 11, and is composed of a plate-shaped body with a certain width. It contacts the upper surface of the fluidized bed of grains to be sorted and moves up and down depending on the increase or decrease in the amount of grains to be sorted, thereby detecting the amount of grains to be sorted.

Note that this layer thickness detection means 26 may be one that optically detects the amount of grains to be sorted.

Next, the relative connection state between the layer thickness detection means 26 and the grain transfer helix 23 will be explained. The vertical movement state of the layer thickness detection means 26 is determined by the potentiometer 27. The information is sent to the comparison control section 29 via the amplifier 28, and the comparison control section 29 compares the reference value from the reference setting device 30 with the detection information, and if the detection information indicates that the layer thickness is thinner than the reference value, the drive circuit No drive signal is output to the drive circuit 31, and the grain transfer helix 23 is not driven and is in a stopped state, but if the detection information indicates that the layer thickness is thicker than the reference value, a drive signal is output to the drive circuit 31,
The helix drive motor 25 is driven, and the grain transfer helix 23
is driven to transfer the grains to be sorted stuck on the supply side of the rotary sorting tube 11 to the discharge side, and to equalize the grains to be sorted in the rotary sorting tube 11. ing.

Next, the operation of the embodiment will be explained. When carrying out the hulling operation, the rice grains are supplied to the rice tank 2, and each rotating part of the hulling machine is driven. Then, the paddy supplied from the paddy tank 2 to the phusher section 1 is subjected to the dehulling action, the scraped rice is sorted in the lower scraped rice wind sorting path 4, and the rice husks are discharged from the dust exhaust pipe 6 to the outside of the machine. Ru.

The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, is lifted up and supplied to the starting end side of the supply trough 14 on the rotary sorting cylinder 11 side by the mixed rice lifting machine 8, and is fed to the supply helix in the supply trough 14. At 13, it is supplied to the supply side end of the rotary sorting tube 11.

Next, the mixed rice is scooped up by the pot hole of the rotary sorting tube 11 which is rotating clockwise in Fig. 2, and the 1M grains of brown rice fall into the finishing rice machine 16, and the mixed rice of paddy and some brown rice is , the unsorted mixed rice that has fallen into the supply gutter 14 is sorted, and the unsorted mixed rice that has fallen into the feed gutter 14 is fed by the feed helix 13 to 41!14.
From the conveyance terminal end thereof, the material is supplied again into the rotary sorting tube 11 and is re-sorted.

Further, the finished rice that has fallen into the finishing rice gutter 16 is conveyed to the finishing rice flow lower cylinder 17 by the finishing rice helix 15, and is transferred to the finishing rice flow grain plate 18.
While falling into the finished rice receiving trough 19, the rice is sorted by a sorting wind and taken out of the machine by the finished rice lifting machine 20.

The sorted paddy sent to the discharge side end of the rotary sorting cylinder 11 is
The paddy enters the pumping cylinder 21, is pumped up by the pumping cylinder 21, falls into the upper paddy-reducing gutter 22, is returned to the husking section 1, and is again subjected to the husking action in the husking section 1.

As described above, the hulling and sorting work is performed, and the mixed rice in the single-rotation sorting tube 11 is pumped up through the pot hole of the rotary sorting tube 11 and subjected to the sorting action, and is sequentially transferred to the supply side of the rotary sorting tube 11. It flows from the end to the discharge side, but depending on the moisture content of the grains to be sorted or differences in variety, the speed at which the grains to be sorted move from the supply side to the discharge side changes, The grains to be sorted may accumulate on the feed side, making the layer thicker on the supply side than on the discharge side. In such a case, the layer thickness detecting means 26 rotates upward to detect that the layer thickness of the grains to be sorted has become thicker, and this detected information is transmitted to the potentiometer 27. It is sent to the comparison control section 29 via the amplifier 28, and the comparison control section 29 compares the reference value from the reference setting device 30 with the detection information.Since the detection information is thicker than the reference value, it is sent to the drive circuit 31. A drive signal is output, and the grain transfer helix 23 is driven by the helix drive motor 25 to transfer the grains to be sorted that are stagnant on the supply side of the rotary sorting tube 11 to the discharge side, and transfer them to the discharge side. This makes it possible to equalize the grains to be sorted and to prevent unhulled rice from falling into the finishing rice gutter 16 on the supply side of the one-rotation sorting cylinder 11, thereby improving the sorting accuracy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway side view, FIG. 2 is a cutaway rear view, and FIG. 3 is a circuit diagram. Explanation of symbols 1 Slipping section 2 Paddy tank 3 Scraping roll 4 Slipped rice wind sorting path 5 Suction fan room 6 Dust exhaust tube 7 Slipped rice catcher 8 Mixed rice lifting machine 10 Sorting case 11 Rotating sorting tube 12 Drive roller 1
3 Supply helix 14 Supply gutter 15 Finished rice helix 16 Finished rice gutter 16a Finished rice control valve 1
7 Finished rice flow lower cylinder 18 Finished rice flow grain plate 19 Finished rice receiving trough 20 Finished rice grain lifting machine 23 Grain transfer helix (
Transfer means) 24 Supporting member

Claims (1)

[Scope of Claims] [1] Finished rice trough 16 for receiving brown rice inside the rotary sorting cylinder 11 which has a large number of pot holes formed on its inner peripheral surface and rotates around a horizontal axis.
is hung horizontally, and a transfer means 23 is provided below the rotary sorting cylinder 11 to transfer the grains to be sorted from the supply side to the discharge side,
A grain sorting device in which a layer thickness detection means 26 provided on the supply side of the rotary sorting tube 11 and a drive device 25 for the transfer means 23 are connected in a related manner.