JPS62216684A - Return shelf control apparatus of grain sorter - 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 reduction shelf for a grain sorting machine, and is a rotary sorting tube with a large number of potholes on the inner circumferential surface. It can be applied to a grain sorter that sorts mixed rice.

[Prior art]

There is a grain sorting machine that sorts a mixture of paddy and brown rice using a rotating sorting tube with many potholes on its inner circumference. A finishing rice machine is installed horizontally inside this rotating sorting cylinder.

At a position below the finishing rice gutter in the rotary sorting cylinder, grains that have not reached the finishing rice gutter above the grains scooped up by the rotating sorting cylinder are placed, and grains are collected from the front side of the rotation of the rotary sorting cylinder to after rotation. Some are equipped with a reduction shelf that guides the flow down to the lower side.

[Problems to be Solved by the Invention] However, since this reducing shelf is configured in a fixed state, it depends on the amount of grains to be sorted in the sorting cylinder in one rotation.

There were problems in that the amount of return varied and the sorting efficiency decreased, and the flow speed of grains to be sorted from the supply side to the discharge side could not be controlled.

Means for Solving Problem c] Therefore, the present invention has been developed to control the flow rate of the grains to be sorted from the supply side to the discharge side in the rotary sorting cylinder by adjusting and controlling the reduced species. In addition to preventing the surface rubbing phenomenon of A rotary sorting tube 1 that has a large number of potholes on its surface and rotates around a horizontal axis.
A finishing rice gutter 16 is horizontally suspended in the rotating sorting cylinder 11, and the finishing rice gutter 16 is disposed below the finishing rice gutter 16 in the rotating sorting cylinder 11.
The reduced seeds 27 that receive the grains that have not reached the finishing rice gutter 16 in the upper part of the grains scooped up by the rotary sorting cylinder 11 and guide them down from the rotation front side to the rotation rear side of the rotary sorting tube 11 are removed at least from the discharge side. It is divided into a fixed reduction shelf 27b in a fixed state and an adjustable reduction seed 27c that is movable in the vertical direction on the supply side, and the fixed reduction shelf 27b is equipped with a grain detection sensor 29 that can detect the flow of grains. In relation to the presence/absence detection of grains by the grain detection sensor 29 of the fixed return shelf 27b.

This is a structure of a reduction shelf adjustment device for a grain sorter, which is characterized in that the controlled reduction seeds 27c are moved and adjusted in relation to each other in the vertical direction.

[Function and effect of the invention]

When sorting the grains to be sorted in the rotary sorting ft2i11, when the grain detection sensor 29 of the fixed reduction shelf 27b does not detect grains, the adjusted reduction seeds 27c are moved upward and adjusted in relation to the fixed reduction shelf 27b. By securing a predetermined amount of grains to be sorted at the fixed reduction shelf 27b and increasing the chances of the grains flowing down the fixed reduction shelf 27b with a relatively high proportion of brown rice fitting into the pot holes of the rotary sorting tube 11, sorting efficiency can be improved. In addition to increasing the fixed reduction shelf 27b
If the amount of reduction in the part is large, the supply side regulating reduction species 2
7c can be increased to suppress the flow of grains to be sorted to the discharge side, prevent brown rice from flowing out from the discharge side of the rotary sorting cylinder 11, and improve sorting accuracy. It is.

〔Example〕

An embodiment of the invention shown in one drawing 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
．． 54, which is composed of 3 and the like, is a wind-selecting path for rice that has fallen through the cracks, and the rice husks are sorted out from the shedding section 1 by the sorting wind generated by the suction fan chamber 5 in front, and the rice husks are passed through the suction fan. The mixed rice of brown rice and paddy is discharged from the chamber 5 to the outside of the machine through the dust exhaust pipe 6, and falls into the dropped rice catcher 7 below. The grain machine 8 is configured to transport the mixed rice to the starting end of a supply gutter 14 which also serves as a receiving gutter.

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.

In arranging the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting tube 11, as shown in FIG. In addition, the finishing rice gutter 16 is disposed 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 148 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 finishing rice gutter 16 includes a finishing rice flow lower cylinder 17,
It is connected to the finished rice receiving trough 19 via the finished rice flow grain plate 18, and the finished rice is transferred to the finished rice flow lower cylinder 17 and the finished rice flow grain plate 1.
The brown rice that is wind-selected while falling from 8 to the finished rice receiving trough 19 and flowing 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 denotes a paddy return shelf, and the upper end of the paddy return shelf 22 extends to a position below the pumping of the pumping cylinder 21 on the rotary sorting cylinder 11 side, and collects the paddy that has been pumped upward by the pumping cylinder 21. , has a function of returning to the de-peeling section 1.

23 is a layer thickness detection tool;

It is located below the supply gutter 14 on the supply side of the rotary sorting cylinder 11 and is pivotally supported on the sorting case 10 by a layer thickness detection shaft 24, and is arranged in a fluidized bed 25 of the grains to be sorted in the rotary sorting cylinder 11.
It is in contact with the rotational rear side of the machine, and moves up and down as the amount of grains to be sorted increases or decreases. 26 is the shedding part 1
This paddy supply regulating valve 26 and layer thickness detection shaft 24 are interlocked and connected via an interlocking member (not shown) constituted by a rod, an arm, etc.

27 is a reduction shelf, and this reduction shelf 27 is connected to the rotary sorting cylinder 11.
Grain that does not reach the finished rice gutter 16 and the mixed rice gutter 14 above the grain scooped by the single-rotation sorting cylinder 11, which is arranged at an angle below the supply gutter 14, that is, relatively brown rice. The grains mixed with a large amount of
The grains to be sorted formed by the rotation of step 1 are allowed to flow backward in the rotational direction from the rearward portion of the fluidized bed 25 in the rotational direction, and the grains mixed with a relatively large amount of brown rice have an opportunity to fit into the pot hole. This function has the function of increasing the efficiency of collecting brown rice into the finishing rice gutter 16. Although this reduction shelf 27 is arranged from the middle part of the rotary sorting cylinder 11 to the discharge side, it is also possible to arrange this reduction shelf 27 only in the discharge side part of the rotary sorting cylinder 11.

This reduction shelf 27 is divided into two fixed reduction shelves 27a and 27b on the discharge side and a control motor 28 that is rotatable vertically around the lower part of the supply side and rotates once in the sorting cylinder 11. The fixed reduction shelf 27b and the controlled reduction type 27c are equipped with a grain detection sensor capable of detecting the flow of grains. 29 and 30 are provided.

The grain detection sensors 2, 9 and 30 are configured to be able to input detection signals to a control section (not shown), and the grain detection sensors 29 and 30 both detect the flow of grains. Sometimes, a command signal is not output from the control unit (not shown), the controlled reduction type 27c is in a stopped state, and the grain detection sensor 29 on the fixed reduction shelf 27b side detects no grain flow, and the controlled reduction type 27c is in a stopped state. When the grain detection sensor 30 on the side of the seed 27c detects the presence of grain flow, the control motor 28 is driven to rotate in the normal direction by a control signal from a control section (not shown), and the adjusted reduction seed 27c is moved upward. The grain detection sensor 29 on the fixed reduction shelf 27b side detects the presence of grain flow, and the adjusted reduction seed 27c
When the side grain detection sensor 30 detects no grain flow, the control motor 28 is driven in reverse by a control signal from a control section (not shown), and the adjustment reduction type 27c is rotated downward. to increase and control the reduction amount of the regulated reduction species 27c,
In addition, when both the grain detection sensor 29 on the fixed reduction shelf 27b side and the grain detection sensor 30 on the regulated reduction seed 27c side detect no grain flow, a control signal from the control section (not shown) is sent. The control motor 28 is driven in the reverse direction, the regulated reduction species 27c is rotated downward, and the amount of reduction of the regulated reduction species 27c is controlled to increase.

Note that the grain detection sensor 29 is provided only on the fixed reduction shelf 27b side, and when the grain detection sensor 29 stops detecting the flow of grains, the adjusted reduction m27C is rotated downward and the adjusted reduction seed 27c is It may be configured in a related manner to increase the amount of reduction. Also.

A grain detection sensor capable of detecting the flow rate of reduced grains is provided on the side of the fixed reduction shelf 27b, and when this grain detection sensor detects a flow of grains below a predetermined amount, the adjusted reduction type 27
c upward to control the reduction amount of the regulated reduction seed 27c, and when this grain detection sensor detects a flow of grains exceeding a predetermined amount, the regulated reduction seed 27c is rotated downward. In this way, the amount of reduction of the regulated reduction species 27c may be controlled to increase.

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 husking section 1 is subjected to a shedding action, the husked rice is sorted by the sloughed rice wind sorting path 4 below, 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 @ 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 @ 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 counterclockwise 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. be done.

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 amount 4ti19, it is sorted by a sorting wind and taken out of the machine by a 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 reduction [22], is returned to the shedding section 1, and is again subjected to the shedding action in the shedding section 1.

The hulling and sorting work is performed as described above, but when the grain detection sensors 29 and 30 are both detecting the flow of grains, a command signal is sent from the control unit (N in the figure). The adjusted return amount 27c remains in the stopped state without being outputted, and the grains are returned from the adjusted return amount 27c and are transferred from the supply side of the grains to be sorted in the one-rotation sorting tube 11 to the discharge side. By slowing down the flow and increasing the chance of sorting in the rotary sorting tube 11, reducing the return of brown rice from the discharge side end to the scraping section 1, the surface rubbing of brown rice due to the double rubbing phenomenon of brown rice is prevented. It is possible to improve the performance of one sorting by reducing the number of filters.

In addition, when the grain detection sensor 29 on the fixed return amount 27b side detects no grain flow and the grain detection sensor 30 on the adjustable return amount 27c side detects grain flow, the controller (
The control motor 28 is driven to rotate normally by a control signal from a controller (not shown), and the adjusted return amount 27c is rotated upward to decrease the adjusted return amount 27C, and the grains to be sorted are discharged. It is possible to speed up the flow to the rotary sorter 1i11, secure a predetermined amount of grains to be sorted in the rotary sorter 1i11, and improve the sorting efficiency.
In addition, if the grain detection sensor 29 on the fixed return amount 27b side detects the presence of grain flow and the grain detection sensor 30 on the adjustable return amount 27C side detects no grain flow, the controller (
The control motor 28 is driven in reverse by a control signal from the controller (not shown), and the adjusted return amount 27c is rotated downward to control the increase in the adjusted return amount 27c. It is possible to improve the efficiency of 1 sorting by increasing the chances of grains having a relatively high proportion of brown rice being inserted into the pot hole.
When the grain detection sensor 30 on the side of the adjusted return amount 27c both detects no grain flow, the control motor 28 is driven in reverse by a control signal from a control section (not shown), and the adjusted return amount is adjusted. 27c rotates downward, adjusting reduction l11
Since it is configured to be controlled in a related manner so as to increase the amount of reduction of 27c, it is possible to increase the amount of fixed reduction @ 27b and the amount of adjusted reduction 27c to improve the 1 sorting efficiency. It is possible.

[Brief explanation of drawings]

The drawings show an embodiment of the invention; FIG. 1 is a cutaway side view, FIG. 2 is a cutaway front view, and FIG. 3 is a plan view. Explanation of symbols

Claims (1)

[Scope of Claims] [1] Finished rice gutter 16 is horizontally suspended in a rotary sorting cylinder 11 which has a large number of potholes on its inner peripheral surface and rotates about a horizontal axis, and It is arranged at a position below the finishing rice gutter 16, and receives grains that have not reached the upper finishing rice gutter 16 among the grains scooped up by the rotating sorting cylinder 11, and picks up the grains from the front side of the rotation of the rotating sorting cylinder 11. At least the fixed reduction shelf 27 in a fixed state on the discharge side
The fixed reduction shelf 27b is provided with a grain detection sensor 29 capable of detecting the flow of grains, and the fixed reduction shelf 27b is provided with a grain detection sensor 29 capable of detecting the flow of grains. A reduction shelf adjustment device for a grain sorter, characterized in that the adjustment reduction shelf 27c is moved and adjusted in the vertical direction in relation to the presence/absence detection of grains by the grain detection sensor 29.