JPS6372387A - 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 cylinder, which has a large number of pot holes on its inner circumferential surface, around a horizontal axis. Inside this rotary sorting cylinder, an intermediate reduction shelf is installed in the longitudinal direction midway from the supply side to the discharge side below the finished rice gutter, and a discharge side reduction shelf is installed obliquely on the discharge side. The grains that have not reached the finishing rice gutter in the upper part of the grains that have been pumped up by the cylinder, that is, the grains that are mixed with a relatively large amount of brown rice, are transferred from the front side of the rotating sorting cylinder to the rear side of the rotation. The grains are guided downward and returned to the rear in the rotational direction from the rearward portion in the rotational direction of the fluidized bed of grains to be sorted formed by the rotation of the rotary sorting cylinder.

This increases the chances of grains containing a relatively large amount of brown rice fitting into the pot holes, increasing the efficiency of collecting brown rice into the finishing rice trough.

[Problems to be solved by the invention] However, in this conventional device, the intermediate reduction shelf and the discharge side reduction shelf are disposed in a fixed state extending in the longitudinal direction below the finishing rice gutter. There was a problem in that the intermediate reducing shelf and the discharge side reducing shelf did not effectively reduce grains containing a large amount of brown rice, due to differences in grain size or variety due to the difficulty of shedding.

Therefore, this invention is designed to respond to changes in sorting conditions based on differences in variety due to the size of grains or the difficulty of explaining.
In response to the falling state of grains on the intermediate reduction shelf and/or the discharge side reduction shelf, the longitudinal position of the intermediate reduction shelf and the discharge side reduction shelf is adjusted so that the intermediate reduction shelf with a high brown rice contamination rate can be used as much as possible. The purpose is to improve the sorting efficiency by receiving and returning many grains.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is to horizontally suspend the finished rice gutter 16 in a rotary sorting cylinder 11 which has a large number of pot holes on its inner circumferential surface and rotates around a horizontal axis. , An intermediate return shelf 23 is provided at the longitudinal intermediate portion from the supply side to the discharge side below the finished rice gutter 16, and a discharge side return shelf 24 is provided obliquely on the discharge side. 2
4 is arranged lower than the intermediate reduction shelf 23, and based on the detection result of the grain detection tool 30 provided on the intermediate reduction shelf 23 and/or the discharge side reduction shelf 24, the intermediate reduction shelf 2
The grain sorting device has a structure in which at least the discharge side end of No. 3 is adjustable in the longitudinal direction above the discharge side return shelf 24.

[Function and effect of the invention]

When performing the sorting work in the rotary sorting tube 11, the sorting situation in the rotary sorting tube 11 changes depending on the size of the grains or differences in varieties due to the ease of shedding.

Even if the situation in which the grains are pumped in the rotary sorting tube 11 changes,
Based on the detection results of the grain detector 30 provided on the intermediate reduction shelf 23 and/or the discharge side reduction shelf 24, at least the discharge side end of the intermediate reduction shelf 23 is detected in the longitudinal direction above the discharge side reduction shelf 24. When the upper position of the discharge side return shelf 24 becomes such that both the intermediate return shelf 23 and the discharge image return shelf 24 can receive grains, the discharge side portion of the intermediate return shelf 23 is moved toward the discharge side. Let me move it.

The grains with a large amount of brown rice received on the intermediate reduction shelf 23 are preferentially returned to the flow down stream to increase the chance of the brown rice fitting into the pot hole of the rotary sorting tube 11, and the brown rice is pumped up in the pot hole of the single rotation sorting tube 11. It is possible to increase the number of opportunities and improve the efficiency of one 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 wind-selecting path for the fallen rice, which uses the sorting wind generated by the suction fan chamber 5 in the front to sort out the fallen rice from the pulping section 1, and transports the rice husks 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 fallen rice volume @ 7 below, and the mixed rice that has fallen into the fallen rice receiving trough 7 is sent to the mixed rice hopper 9 by the mixed rice lifting machine 8.
The mixed rice is then conveyed to the starting end of the supply @ 14 which also serves as a mixed rice receiving trough.

Reference numeral 10 denotes a sorting case, and inside the sorting case 10 there is a supply side end (as shown in FIG. The right side) and the discharge side end (left side in FIG. 4) are rotatably supported by drive rollers 12,12. Inside this rotary sorting cylinder 11, a supply @ 14 with a supply helix 13 and a finishing rice trough 16 with a finishing rice helix 15 are installed horizontally.

This supply + J14 and finishing rice gutter 16 are rotated into the sorting tube 11.
As shown in FIG. The mixed rice scooped up by the pot hole of the rotary sorting cylinder 11 falls into the supply gutter 14 and is transferred to the terminal side of the supply gutter 14 by the supply helix 13. The supply gutter 14 also functions as a mixed rice receiving gutter. The discharge side end of the finishing rice gutter 16 is connected to the finishing rice flow lower cylinder 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. 22 is 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 rotation sorting [11, and is pumped upward by the pumping cylinder 21 on the a side. It has the function of returning the paddy to the preaching section 1.

23 is an intermediate reduction shelf, and this intermediate reduction shelf 23 is.

The finishing rice gutter 16 is disposed at an angle below the supply gutter 14 in the rotary sorting cylinder 11 and is located above the interior of the grains pumped up by the rotary sorting cylinder 11. grains that do not reach the mixed rice gutter 14;
That is, the grains containing a relatively large amount of brown rice are received and guided down from the rotation front side of the rotary sorting tube 11 to the rotation rear side, and the grains to be sorted formed by the rotation of the rotary sorting tube 11 are separated. The flow is returned to the rear part of the fluidized bed in the rotational direction rather than the rearward part of the rotational direction, increasing the chance of the grains mixed with a relatively large amount of brown rice to fit into the pot hole, and improving the efficiency of recovering brown rice to the finishing rice gutter 16. It has the function of increasing the

The reduction shelf 23 may be disposed at least in the middle of the rotary sorting tube 11.

Reference numeral 24 denotes a discharge side reducing machine installed diagonally below the supply gutter 14 on the discharge side of the rotary sorting tube 11.

The vertical relationship between the intermediate reduction shelf 23 and the discharge side reducing machine 24 is such that the discharge side reducing machine 24 is arranged lower than the intermediate reducing machine 23, and the rotating sorting cylinders 11 are arranged from the supply side to the discharge side. Regarding the relationship in the longitudinal direction, the discharge side end of the intermediate reduction shelf 23 and the supply side end of the discharge side reduction machine 24 are in close correspondence.

This intermediate reduction shelf 23 is a main intermediate reduction shelf 23a in a fixed state.
and a regulating intermediate reduction machine 23b that can be moved and adjusted in the longitudinal direction. The regulating intermediate reducing machine 23b can be adjusted by moving from the discharge side end of the main intermediate reducing shelf 23a to the discharge side above the discharge side reducing machine 24. In addition, 25 is a regulating intermediate reduction machine 23b.
26 is a guide plate attached in a hanging state to the discharge side end of the guide plate 25, and 26 is a closing plate that is connected to the upper end of the guide plate 25 and runs along the longitudinal direction of the upper end of the discharge side reducing machine 24. It is.

Further, 27 is a control motor attached to the main intermediate reduction shelf 23, and 28 is a regulating intermediate reduction machine 23b.
The adjustment screw frame is attached along the longitudinal direction via an arm 29, and the adjustment screw frame 28 and the control motor 2
7 is interlocked and connected, and the regulating intermediate reducer 23b is controlled to expand and contract in the longitudinal direction by a control motor 27.

Reference numeral 30 denotes a detection device that is provided on the supply side of the main intermediate reduction shelf 23a and is capable of detecting the mixing ratio of unhulled rice and brown rice.The detection data from the detection device 30 is sent to the comparison control unit via the amplifier 31. 32 and is compared with a set reference value in the comparison control unit 32, and a forward rotation drive signal or a reverse rotation drive signal is outputted to the control motor 27 via the output interface 33, causing the control motor 27 to rotate forward or backward. Reverse it.

This is for adjusting the expansion and contraction of the adjusting intermediate reduction machine 23b.

Note that this detector 30 may be provided on either or both of the main intermediate reduction shelf 23 or the discharge side reduction machine 24, and this detector 30 does not necessarily detect the mixing ratio of unhulled rice and brown rice. It does not have to be a physical device, and it may be a device that detects the amount of grains flowing down. In addition, instead of this detector 30, a detector (not shown) for detecting the mixing ratio of unhulled rice and brown rice is added to the unhulled rice return value 22 that returns the unhulled rice after sorting in the rotary sorting cylinder 11 to the husking section 1. When this detection tool (not shown) detects a brown rice ratio higher than a predetermined value, the adjustment intermediate reduction shelf 23bt! - It may be constructed so that related control is possible so as to move toward the discharge return shelf 24.

Next, the operation of the embodiment will be described. When carrying out hulling work, the paddy tank 2 supplies Yahara paddy and drives each rotating part of the hulling machine. Then, the paddy supplied from the paddy tank 2 to the dehulling section 1 is subjected to the dehulling action.

The fallen rice is sorted in the lower fallen rice wind sorting path 4, and the rice husks are discharged from the dust pipe 6 to the outside of the machine. The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, and is lifted and supplied to the starting end side of the supply trough 14 on the rotary sorting cylinder 11 side via the mixed rice hopper 9 in the mixed rice lifting machine 8. The feed helix 13 in the feed gutter 14 supplies the feed to the feed side end of the rotary sorting cylinder 11 .

Next, the mixed rice is scooped up by the pot hole of the rotary sorting cylinder 11 which is rotating clockwise in FIG. The rice falls into the supply gutter 14 and is sorted, and the unsorted mixed rice that has fallen into the feed gutter 14 is fed again into the rotary sorting fili 11 from the conveyance end of the feed gutter 14 by the feed helix 13,
Will be re-screened.

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 to the finished rice receiving trough 19, the rice is sorted by a sorting wind and taken out of the machine at the finished fried rice Ia20.

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 machine 22, is returned to the phusting section 1, and is again subjected to the phusting action in the paddy section 1.

As described above, the hulling and sorting work is carried out, and when carrying out the sorting work in the rotating sorting cylinder 11, two grains are large in size, and two grains are small in size.

It is necessary to sort grains of various types, such as the mixing ratio of large grains and small grains, and the difficulty of dehulling. is pumped up lower by the pot hole, and particles with smaller diameter are pumped higher by the pot hole, so due to the difference in grain characteristics, the sorting situation in the rotary sorter ffIJ11 changes, and the intermediate reduction tank 23 and discharge side The reduction state of grains falling onto the reduction shelf 24 changes.

In this way, the situation in which the grains are pumped up in the rotary sorting cylinder 11 changes, and the intermediate reduction tank 23 and the discharge side reduction 1! ! 124 When the reduction state changes, the main intermediate reduction shelf 23
A detection tool 30 provided in a detects the mixing ratio of unhulled rice and brown rice, and the detection result is sent to the comparison control section 32 via the amplifier 31, and compared with the set reference value in the comparison control section 32. If the detected value indicates that the mixing ratio of brown rice is greater than the set standard value, a forward rotation drive signal is output to the control motor 27, and the control motor 27 rotates in the forward direction, causing the control intermediate reduction shelf 23b to rotate normally. In the intermediate reduction tank 23 whose movement is adjusted so that it extends toward the discharge side and whose area is adjusted to be enlarged, many grains are received and returned downstream, and grains with a high brown rice ratio are rotationally sorted rIJ11.
In addition, if the detected value of the mixture ratio of brown rice is lower than the set standard value, it is determined that the amount pumped up to the intermediate reduction shelf 23 is decreasing, A reverse drive signal is output to the control motor 27, the control motor 27 reverses, and the adjustment intermediate reduction shelf 23b is moved and adjusted to be shortened from the discharge side, and the area of the adjustment intermediate reduction tank 23 is adjusted to be reduced. By reducing the amount received by the grain,
Although the pumping height is low, the area of the receiving portion of the discharge side return shelf 24 where a large amount of pumping is available is expanded to allow a large amount of grain to flow down and return, and to have an opportunity to fit into the pot hole of the rotary sorting tube 11. By increasing the number of cells, it is possible to improve the sorting efficiency.

At the upper position of the discharge side reduction shelf 24, the intermediate reduction Ig2
If grains can be received on both the third and discharge side reduction shelves 24, the adjustment intermediate reduction shelf 23b of the intermediate reduction tank 23 is moved to the discharge side to receive the grains that are located below and have a low brown rice ratio. The grains in the intermediate reduction tank 23, which is located above and receives grains with a high proportion of brown rice, are given priority to be returned, and the grains with a higher proportion of brown rice are given priority to be returned, rather than the grains in the discharge side reduction shelf 24, which receives the grains. This provides an opportunity for the rotary sorting tube 11 to fit into the pot hole, increasing the opportunity to pump brown rice, and improving sorting efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a circuit diagram, FIG. 3 is a cutaway side view, and FIG.
The figure is a cutaway rear view. Explanation of symbols 1 Dehulling section 2 Paddy tank 3 Dehulling roll 4 Slipping rice wind selection path 5 Suction fan room
6 Discharge tube 7 Dropped rice catcher 8 Mixed rice lifting machine 10 Sorting case 11 Rotating sorting tube 12 Drive roller
13 Supply spiral 14 Supply gutter 15
Finished rice helix 16 Finished rice gutter 16a Finished rice adjustment valve 17 Finished rice flow lower cylinder 18 Finished rice flow grain plate 19 Finished rice receiving trough 2o Finished rice grain lifting machine 23 Intermediate return shelf 23a Main intermediate return shelf 23b Adjustment intermediate return shelf 24 Discharge Side reduction tank 25 guide plate
26 Closure plate 27 Control motor 28 Adjustment screw frame 29 Arm 30 Detector 31
Amplifier 32 Comparison control section 33 Output interface

Claims (1)

[Scope of Claims] [1] A finishing rice gutter 16 is horizontally suspended in a rotary sorting cylinder 11 which has a large number of pot holes in its inner peripheral surface and rotates around a horizontal axis, and a finishing rice gutter 16 is placed below the finishing rice gutter 16. An intermediate reduction shelf 23 is provided obliquely in the longitudinally intermediate portion from the supply side to the discharge side, and a discharge side reduction shelf 24 is provided obliquely on the discharge side.
4 is arranged lower than the intermediate reduction shelf 23, and based on the detection result of the grain detection tool 30 provided on the intermediate reduction shelf 23 and/or the discharge side reduction shelf 24, the intermediate reduction shelf 2
A grain sorting device in which at least the discharge side end of the grain sorting device 3 is configured to be freely adjustable in the longitudinal direction above the discharge side return shelf 24.