JPS6287290A - Layer-thickness detecting tool for cereal grain selector - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a layer thickness detector for a grain sorter,
It is a rotating sorting tube with many potholes on its inner circumferential surface, and can be used in a huller to sort out a mixture of paddy and brown rice.

[Prior art]

This is a hulling machine in which a hulling section and a rotary sorting tube, which has a large number of holes on the inner circumferential surface, are placed close to each other, and a layer thickness detector that can detect grains to be sorted in the rotary sorting tube is used. be.

[Problem that the invention seeks to solve]

In this prior art, the one-layer thickness detector contacts the vertically intermediate portion of the fluidized bed of grains to be sorted in the rotary sorting cylinder, so the fluidized bed of grains to be sorted is stabilized. The layer thickness detector may repeatedly vibrate due to scattered grains, or
There is a problem in that the grains flowing downward from above may ride on the top surface of the layer thickness detector and bury the layer thickness detector, making it impossible to accurately detect the grain layer thickness.

[Means to solve the problem]

Therefore, the present invention aims to eliminate such drawbacks, and the technical means of the present invention for solving such technical problems is a rotary sorting system in which a large number of potholes are formed on the inner circumferential surface. Finished rice @1i16 is placed horizontally in the cylinder 11, and the layer thickness detector 23, which can be moved up and down according to the amount of grains to be sorted in the rotary sorting tube 11, is placed between the grains to be sorted in the rotary sorting tube 11. This is a layer thickness detecting device for a grain sorting machine, which is characterized in that it is brought into contact with a rotationally rearward side portion of a fluidized bed 25 of grains.

[Function and effect of the invention]

When the number of grains to be sorted in the rotary sorting cylinder 11 increases or decreases, the layer thickness detector 23 rotates upward or downward to detect the grain layer thickness. Since the layer thickness detector 23 is in contact with a calm part of the fluidized bed 25 of grains on the rear side of the rotation where the grains do not scatter, the layer thickness detector 23 constantly repeats slight vibrations in the vertical direction. In addition, the grains flowing from above to below do not ride on the top surface of the layer thickness detector 23 and the layer thickness detector 23 is not buried in the grain layer to be sorted. , the grain layer thickness can be detected accurately.

〔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 trough 7 below. g. Combined rice frying machine 8 It is configured to be conveyed to the starting end of the supply J@14 which also serves as a combined 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. 2) 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 suspended within the rotary sorting cylinder 11.

When arranging the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting cylinder 11, the supply J6I! 14 is arranged on the scooping side of the rotary sorting cylinder 11 which rotates from the bottom to the top, and the finishing rice gutter 16 is arranged on the side of the rotary sorting cylinder 11 which rotates from the top to the bottom, The mixed rice scooped up by the pothole of the rotary sorter ffMll falls into the supply gutter 14, and is fed by the supply helix 13 M! 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 receiving gutter 19 via the finishing rice flow lower tube 17 and the finishing rice grain plate 18.
The finished rice is wind-selected while falling from the finishing rice flow lower pipe 17 and the finishing rice grain plate 18 to the finishing rice receiving trough 19, and the brown rice flowing down to the finishing rice receiving trough 19 is divided into finished rice. The grains are taken out of the machine via the grain lifting machine 2o.

A pumping cylinder 21 is connected to the discharge side end of the rotary sorting cylinder 11. Reference numeral 22 denotes a paddy return gutter, and the upper end of the paddy return gutter 22 extends to a position below the pumping of the pumping cylinder 21 on the rotary sorting cylinder 11 side, and the paddy is pumped upward by the pumping cylinder 21. It has a function of returning to the removing section 1.

Reference numeral 23 denotes a layer thickness detector, which is located below the supply gutter 14 on the supply side of the rotary sorting tube 11, and is pivotally supported on the sorting case 10 by a layer thickness detection shaft 24. It is brought into contact with the rear side of rotation of the fluidized bed 25 of the grains to be sorted in the rotary sorting tube 11, and moves up and down depending on the increase or decrease in the amount of grains to be sorted. 26 is a paddy supply control valve of the phushulling section 1, and this paddy supply control valve 26 and the layer thickness detection shaft 2
4 and 4 are interlocked and connected via an interlocking member (not shown) constituted by a Ron door arm or the like.

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 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 tube 11 from the conveyance end of the feed gutter 14 by the feed helix 13 and is re-sorted. Ru.

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 22, is pumped up by the pumping cylinder 22, falls to the upper paddy reducing machine 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 when the number of grains to be sorted in the rotary sorting tube 11 increases or decreases, the layer thickness detector 23 rotates upward or downward, and the layer thickness increases or decreases. The movement of the detection tool 23 is controlled via an interlocking member (not shown).
The paddy supply control valve 26 of the husking section 1 is controlled to decrease or increase the amount of grain to be sorted in the rotary sorting tube 11, and the amount of grains to be sorted in the rotary sorting tube 11 is controlled to be constant. Since the layer thickness detector 23 is in contact with the stable part of the grain fluidized bed 25 on the rear side of the rotation where the grains do not scatter, the layer thickness detector 23 constantly repeats slight vibrations in the vertical direction. In addition, the grains flowing from the top to the bottom are less likely to ride on the top surface of the layer thickness detector 23, and the layer thickness detector 23 is less likely to be buried in the grain layer to be sorted. Therefore, the grain layer thickness can be detected accurately.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and FIG. 1 is a cutaway rear view, and FIG. 2 is a cutaway side view. Explanation of symbols 1 Dehulling section 2 Paddy tank 3 Dehulling roll 4 Slurping rice wind selection path 5 Suction fan room
6 Dust exhaust tube 7 Dropped rice catcher 8 Mixed rice lifting machine 10 Sorting case 11 Rotating sorting tube 12 Drive roller
13 Supply helix 14 Supply 4iff! 15 Finished rice helix 16 Finished rice gutter 17 Finished rice flow lower cylinder 18 Finished rice flow grain plate 19 Finished rice receiving trough 20 Finished rice grain lifting machine 23 Layer thickness detector 24 Layer thickness detection shaft
25 Fluidized bed 26 Paddy supply control valve

Claims (1)

[Scope of Claims] [1] A finishing rice gutter 16 is placed horizontally in the rotary sorting cylinder 11, which has a large number of potholes on the inner peripheral surface, and the amount of grains to be sorted in the rotary sorting cylinder 11 is controlled. The layer thickness detector 23, which can be moved up and down according to the
A layer thickness detecting device for a grain sorter, characterized in that the device is brought into contact with the rotation rear side portion of No. 5.