JPH03174A - Rotary sorting tube control device for grain sorting equipment - Google Patents

Abstract

PURPOSE:To enhance the precision of a detector by controlling the turning rate of a rotary classification cylinder based on the detection value of the grain detector provided at respective positions. CONSTITUTION:A mixture of unpolished rice and unhulled rice is dropped into a hulled rice receiving trough 7 and lifted up into a mixed rice hopper 9. The mixed rice is then supplied to the supply-side end of the rotary classification cylinder 11 by a feed screw 13 in a supply trough 14. The mixed rice is scraped up into the pot hole of the cylinder 11 and dropped into a finished rice trough 16, and the lower scraped up unhulled rice is dropped into the cylinder 11, sent to the discharge side from the supply side and classified. The grain is detected by the supply-side upper grain detector 31, supply-side grain detector 32 and intermediate-part upper grain detector 34 during the classification, the turning rate of the cylinder 11 is increased or decreased, and the turning rate is appropriately adjusted. Consequently, the turning rate is precisely controlled.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This 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. This invention relates to a rotating sorting cylinder control device.

[Prior art]

There is a grain sorting device 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. Inside this rotary sorting cylinder, a finishing rice gutter for receiving brown rice is installed horizontally, and brown rice with short grain length is scraped up high by the pot hole of the rotating sorting cylinder, and falls into the finishing rice gutter, and is also scraped low. The lifted unhulled rice with long grains is sorted as it falls into a rotating sorting tube. As a conventional technique for detecting the falling condition of the grains scraped through the pot hole of the rotating sorting cylinder,
There is a publication No. 9890.

[Problems to be Solved by the Invention] In this conventional device, a plurality of detectors for detecting the height and low fall sorting status of grains into the finishing rice trough are installed at predetermined positions in the longitudinal direction of the rotating sorting cylinder in the finishing rice trough. It is attached directly to the board surface. Therefore, the detector located below contains grains that have fallen onto the detector and grains that have fallen above the detector and are flowing downward in the finishing rice gutter. This resulted in the detection of grains that were in the process of being removed, and there was a problem in that the detection accuracy of the lower detector was not accurate.

In addition, the grains sorted by the rotating sorting tube may be larger or smaller in grain size and grain length, or more or less small rice, depending on the variety or the climatic conditions of the year. There was a problem that the raking and sorting state could not be detected accurately.

SUMMARY OF THE INVENTION The present invention aims to solve these problems, improve detection accuracy, and more accurately control the rotational speed of the rotary sorting tube.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is that the finished rice [1
A plurality of upper grain detectors on the supply side are installed to detect the grains scraped up by the rotary sorting tube 11 in the lower part of the rotary sorting tube 11 of the L rice barrel 16. 31.
Upper grain detectors 32 on the supply side are disposed on each side, and the rotary sorting tube 11 is arranged at the middle portion in the longitudinal direction of the rotary sorting tube 11 of the finishing rice gutter 16 and at the upper position of the part where the return shelf 33 is located. An intermediate upper grain detector 34 is provided to detect the lifted grains, and the rotation speed of the rotary sorting cylinder 11 is adjusted and controlled based on the detection results of these grain detectors 31, 32, and 34. A rotary sorting tube control device for a grain sorting device is configured as follows.

[Operation and effect of the invention]

When the mixed rice is sorted in the rotary sorting tube 11, among the grains to be sorted, brown rice with short grain length that is scraped up high by the pot hole of the rotary sorting tube 11 falls into one finishing rice gutter 16. The long-grained unhulled rice is sorted as it falls into the rotary sorting tube 11, and the grains scraped up by the rotary sorting tube 11 are the finished rice 4!
The falling sorting situation is detected by the upper grain detector 31 on the supply side, the lower grain detector 32 on the supply side, and the upper grain detector 34 in the middle part provided at the upper grain detector 16.

When the grains are sorted in the one-rotation sorting tube 11, the grains with many small grains and millet rice tend to get into the pot holes on the supply side of the rotary sorting tube 11 and are scooped up high. In this case, when the upper grain detector 31 on the supply side detects grains, it means that the grains are being scraped up too much, so the rotation speed of the rotary sorting cylinder 11 is adjusted to the decreasing side, and if there are few large grains or small grains. The grains are transferred to the reduction shelf 33 of the sorting tube 11.
There is a tendency for the middle part to be scraped higher than the supply side without the reduction shelf 33, and in such a case, when the middle part upper grain detector 34 detects grains, the grains are Since the scraping is too much, the rotational speed of the rotary sorting cylinder 11 is adjusted and controlled to decrease the number of rotations, and if the upper grain detector 31 on the supply side does not detect grains, the grains are scraped too much. Since the lifting is insufficient, the rotation speed of the one-rotation sorting cylinder 11 is adjusted and controlled to the increasing side, and it is possible to accurately detect the scooping state of grains for various grains, and to accurately adjust and control the one-rotation speed. This is something that can be done.

〔Example〕

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

First, the configuration of the embodiment will be explained. 1 is a paddy hopper 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 wind generated by the suction fan 5 in front, and the rice husks are separated from the husks from the suction fan 5 to 1.
11: Discharged from the machine through the thread tube 6, the mixed rice of brown rice and paddy is dropped and supplied to the sliding rice receiving trough 7 below. The mixed rice that has fallen into the fallen rice receiving trough 7 is fried by a mixed rice pounder 8 into a mixed rice hopper 9, and the fried mixed rice has a rotational speed SτI.
It is configured to be sent to the starting end of the supply @l114 on the cylinder 11 side.

Reference numeral 10 denotes a sorting case, and inside the sorting case 10 there is a rotating sorter [11], which has a large number of pot holes on its inner circumferential surface.
In order to rotate around the horizontal axis, the feed side end (right side in Figure 1) which is the sorting start side and the discharge side end (left side in Figure 1) which is the sorting end side are rotated by drive rollers 12, 12. freely supported. 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.

When 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 raking side of the rotary sorting tube 11 rotating from the bottom to the top, as shown in FIG. , the finished rice 4i116 is placed on the side that rotates from the top to the bottom of the rotary sorting tube 11, and the mixed rice scraped up low by the pot hole of the rotary sorting tube 11 falls into the supply [14] and is transferred to the feed lathe. 13, the rice is conveyed to the terminal end of the supply gutter 14, and the feed gutter 14 also serves as a mixed rice receiving gutter. , the amount of finished rice fi! via the finishing rice flow grain plate 18! 19, and while the brown rice falls from the finishing rice flow grain plate 18 to the finishing rice receiving gutter 19, it is sorted by a sorting wind, It is configured to be taken out of the machine by fried grain JA20.

A paddy receiving trough 21 is provided above the sorting end of the rotary sorting tube 11, and the grains mainly composed of unhulled rice that have fallen into the paddy receiver 4i421 after sorting are sent to the hulling machine 22 and sent to the threshing section 1. This structure is such that the rice is returned to the reduced rice hopper 23.

Further, from the end of the 1 sorting case 10 on the side of the shedding section 1, the shaft end 15a of the finished rice helix 15, the shaft end 13a of the supply helix 13, and the drive roller ll1l! which drives the drive rollers 12, 12! 124.24 shaft end 24a.

24a are extended to the side of the removing part 1, and the pulleys 25, 25. ...and these boo U25, 25. The transmission belt 26 is hooked and rotated. This pulley 25, 25. ..., the pulley 2 attached to the shaft end 15a of the finishing helix 15
Reference numeral 5 denotes a continuously variable speed pulley 25a that expands and contracts with a spring. By moving the tension pulley 28 of the tension arm 27, the effective diameter of the continuously variable speed pulley 25a is adjusted, and the rotational speed of the transmission belt 26 is changed and adjusted. As a result, the number of rotations of the rotary sorting cylinder 11 is adjusted to increase or decrease.

Note that 29 shown in FIGS. 1 and 2 is the rotary sorting cylinder 1.
This is an inclination adjustment means for adjusting the inclination of the co-rotating sorting tube 11 by vertically moving the rear portion in the longitudinal direction of the rotary sorting tube 11, that is, the right side portion in FIG.

A plate-shaped layer thickness detector 30 that moves up and down in contact with the upper surface of grains to be sorted is provided on the supply side of the rotary sorting tube 11, and a plate-shaped layer thickness detector 30 that moves up and down in contact with the upper surface of the grains to be sorted is provided on the feed side of the rotary sorting tube 11 of the finishing rice gutter 16. , a plurality of supply-side upper grain detectors 31 and 32 for detecting the grains scraped up by the rotary sorting tube 11 are arranged in vertical positions and are slightly shifted in the longitudinal direction. It is arranged as follows. In addition, in the longitudinally intermediate part of the rotary sorting tube 11, the grains scraped up by the rotary sorting tube 11 do not fall into the supply @s14, but receive and flow the grains mixed with a relatively large amount of brown rice. Place the reduced seeds 33 to guide the flow down below the layer, and
An intermediate upper grain detector 34 is provided in the middle portion of the rotary sorting tube 11 of 416, which can detect grains scraped upward. Note that a lower intermediate grain detector (not shown) may be provided below the upper intermediate grain detector 34 and at a position shifted in the longitudinal direction of the rotary sorting cylinder 11.

In this embodiment, the grain detector is configured to detect grains when they collide, but it may be one that detects the passage of grains using an emitting element and a light receiving element.

This feed side upper grain detector 31. Supply side upper grain detector 32
And the detection information detected by the middle upper grain detector 34 is
The configuration is such that the data is input via an input interface 35 to an arithmetic control unit 36 that includes a CPU. Also,
A forward rotation relay 38 and a reverse rotation relay 39 are connected to the calculation control unit 36 via an output interface 37.

Adjustable setting reference information in the calculation control unit 36 and the upper grain detector 31 on the supply side. The detection information of the supply side upper grain detector 32 and the intermediate lower grain detector 34 are compared, and the following control is performed.

■Supply side upper grain detector 31 and middle part upper grain detector 34
Since neither of the above is detecting grains, and the upper grain detector 32 on the supply side is detecting grains on the platform, the grains are being raked up in a proper sorting state. , arithmetic control section 3
6 to forward rotation relay 38 for rotating the rotation control motor 40 in the forward or reverse direction. No drive signal is output to the reversing relay 39, and the rotary sorting tube 11 rotates at the same rotation speed.

■Supply side upper grain detector 31 and middle part upper grain detector 34
If both are not detecting grains and the upper grain detector 32 on the supply side is also not detecting grains, the am is in an inappropriate sorting state due to insufficient raking state. , a rotation speed increase signal is output from the arithmetic control unit 36 to the normal rotation relay 38, the rotation control motor 40 rotates in the normal direction, and the rotating sorting cylinder 1
1 is adjusted to the predetermined rotation speed increasing side.

■Supply side upper grain detector 31 and middle part upper grain detector 34
If both detect grains and the upper grain detector 32 on the supply side also detects grains, the grain is being scraped up in an inappropriate sorting state. Arithmetic control unit 3
6 outputs a rotation speed reduction signal to the reversing relay 39,
The rotation control motor 40 is reversely rotated, and the rotation speed of the rotary sorting tube 11 is adjusted to a predetermined rotation speed decrease side.

■If either the supply side upper grain detector 31 or the intermediate upper grain detector 34 detects grains, and the supply side upper grain detector 32 also detects grains, , because the grain is in an unsuitable sorting state where the raking state is excessive.
A rotation speed reduction signal is output from the calculation control unit 36 to the reversing relay 39, the rotation control motor 40 is reversed, and the rotation speed of the rotary sorting cylinder 11 is reduced to a predetermined rotation speed reduction side.

Furthermore, instead of the means for adjusting the rotation speed of the rotary sorting tube 11, the inclination adjusting means 29 for adjusting the longitudinal inclination of the single rotation sorting tube 11 or the paddy supply amount regulating valve 41 of the husking section 1 can be adjusted in a related manner. It may also be controlled.

Next, the operation of the embodiment will be explained. When carrying out hulling work, raw rice is supplied to the rice hopper 2, and each rotating part of the hulling and sorting machine is driven. Then, the paddy roll 3 is removed from the paddy hopper 2.
.

Mixed rice of brown rice and paddy is Surirachimai fl! 7, the mixed rice is fried by a mixed rice hoisting machine 8 to a mixed rice hopper 9, and then supplied to the starting end side of the supply gutter 14 on the rotary sorting cylinder 11 side, and then rotated and sorted by the supply helix 13 in the feed gutter 14. It is supplied to the supply side end of @11.

Next, the mixed rice is scraped by the pot hole of the rotary sorting cylinder 11 which is rotating clockwise, and brown rice with short grain length is pumped up high and falls into the drain 16. In addition, the mixed rice of paddy and some brown rice that has been scraped low falls to the supply @ 14 and is sorted, and the unsorted mixed rice that falls to the supply wA 14 is conveyed in the supply gutter 14 by the supply helix 13. The finished rice that has fallen into the finishing rice gutter 16 is fed into the rotary sorting cylinder 11 again from the terminal end and is re-sorted 6. 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. The finished rice is sorted by a sorting wind while falling into the finished rice receiving trough 19 through the finishing rice grain lifting machine 20 and taken out of the machine.

The grains, mainly consisting of paddy, sent to the sorting end of the rotary sorting cylinder 11 flow down into the paddy receiving trough 21, are fried by the paddy lifting machine 22, and are removed from the paddy at the husking section 1. It is returned to the hopper 23,
She is made to take off her clothes again.

As mentioned above, during the sorting work of mixed rice, the brown rice scraped up high by the pot hole of the rotating sorting cylinder 11 is classified as finished rice 1.
The unhulled rice that falls into fA1B and is scraped low falls into the rotary sorting cylinder 11 and is sorted by flowing from the supply side to the discharge side. Grain detector 31. Supply side upper grain detector 32 and intermediate section
The second grain detector 34 detects grains, increases or decreases the rotation speed of the rotary sorting cylinder 11, and adjusts the rotation speed of the first rotation sorting cylinder 11 to AIT,
It is adjusted to

Next, FIGS. 5 and 8 will be explained.

Supply side upper grain detector 31. The upper grain detector 32 on the supply side, the upper grain detector 34 on the intermediate portion, and the rotation speed detector 42 are configured to be input to an arithmetic control unit 36 incorporating a CPU via an input interface 35. . Further, a forward rotation relay 38 and a reverse rotation relay 39 are connected to the calculation control unit 36 via an output interface 37. Adjustable setting reference information in the calculation control unit 36 and the upper grain detector 31 on the supply side. Feed side upper grain detector 32. The detection information of the intermediate upper grain detector 34 and the rotation speed detector 42 are compared, and the following control is performed.

■Supply side upper grain detector 31 and middle part upper grain detector 34
If neither of them detects grains, but grains are detected in the feed side lower grain detector 11 and the container 32, the rotation speed of the rotary sorting cylinder 11 is appropriate and it is in a proper sorting state, so the calculation Control part 3
No drive signal is output from 6 to the rotation control motor 40,
The rotary sorting tube 11 rotates at the same rotation speed.

■Supply side upper grain detector 31 and middle part upper grain detector 34
are not detecting grains, and the upper grain detector 32 on the supply side
If you are detecting grains.

Since the number of revolutions of the rotary sorting cylinder 11 is insufficient and the grains are not scraped in an inappropriate sorting state, a forward rotation drive signal is output from the calculation control unit 36 to the forward rotation relay 38, and the rotation control motor 40 rotates in the normal direction, and the rotational speed of the rotary sorting tube 11 is adjusted to the predetermined rotational speed increasing side.

■Supply side upper grain detector 31 and middle part upper grain detector 34
If both detect grains and the supply side upper grain detector 32 does not detect grains, the detection information from the rotation speed detector 42 and the maximum rotation speed of the set standard are compared. If the rotation speed is not the maximum, a command signal to increase the rotation speed by one is output from the arithmetic control unit 36, and the rotation speed □ is increased by a predetermined number of times. If the maximum rotational speed has been reached, a rotational speed control stop command signal is output.

■Supply side upper grain detector 31 and middle part upper grain detector 34
If neither of the rotation speeds detects grains, a command signal for decreasing the rotation speed is outputted from the arithmetic control section 36, and the rotation speed is increased by a predetermined number of times.

Next, FIGS. 9 to 11 will be explained.

43 is a supply side grain detector provided on the supply side of the finished rice 161416, and 44 is a discharge saw handle/brown rice detector provided on the discharge side of the finished rice gutter 16. Although not shown in the drawings, a light-emitting element and a light-receiving element are arranged across a channel through which grains pass, and it is possible to detect whether it is paddy or brown rice.

The supply side grain detector 43 and the discharge saw handle/brown rice detector 43 are connected via the input interface 35.

The configuration is such that the information is input to an arithmetic control unit 36 that includes a CPU. The arithmetic control unit 36 also has an output interface 37. A rotation control motor 40 is connected via a forward rotation relay 38 and a reverse rotation relay 39, and an output interface 37. Incline forward rotation relay 45. A tilt control motor 47 is connected via a tilt reversal relay 46 .

The adjustable setting reference information in the arithmetic control unit 36 is compared with the detection information of the supply side grain detector 43 and the discharge saw handle/unpolished rice detector 44, and the following control is performed.

■If the grain detector 43 on the supply side does not detect grains, the number of rotations of the rotary sorting cylinder 11 is insufficient and the sorting state is inappropriate, so the arithmetic control unit 36 sends the normal rotation relay 38 to the normal rotation relay 38. The rotation drive signal is output, the rotation control motor 40 rotates forward,
The rotating sorting cylinder 11 is controlled to increase the rotational speed by a predetermined number.

- When the supply-side grain detector 43 detects grains, since the rotation speed of the rotation sorting unit [11] is in the appropriate sorting state, the normal rotation relay 38. No drive signal is output to the reversing relay 39, and the rotary sorting tube 11 maintains its rotational state.

■The detection information of the discharge side paddy/brown rice detector 44 is sent to the calculation control unit 3
6, and if the ratio of unhulled rice to the ratio of brown rice increases and exceeds the setting standard information, a slope reduction command signal is output from the calculation control unit 36 to the slope reversal relay 46. Been.

The rotation control motor 47 is reversed, the inclination of the rotary sorting cylinder 11 is controlled to decrease by a predetermined inclination angle, and if the ratio of unhulled rice to the brown rice ratio is within the range of the set standard information, the calculation control unit 36 The inclination reduction command signal is not output, and is not output to the inclination control motor 47, and the inclination of the M transfer and sorting tube 11 is not controlled to change, and the inclination is maintained as it is.

Therefore, even if the number of grains to be sorted decreases on the discharge side of the rotary sorting tube 11, it is possible to prevent the unhulled rice from being scraped up into the finishing rice trough 16, thereby improving the accuracy of one sorting. In addition, 48 is a pumping cylinder, and 49 is a reduction receiving trough.

[Brief explanation of drawings]

1 is a cutaway side view, FIGS. 2 and 3 are cutaway rear views, FIG. 4 is a block circuit diagram, and FIG. FIG. 6 is a cutaway side view, FIG. 6 is a cutaway rear view, FIG. 7 is a block circuit diagram, FIG. 8 is a chart diagram, FIG. 9 is a cutaway side view, FIG. 10 is a cutaway rear view, and FIG. is a block circuit diagram. Explanation of code 3a Removal part Scraping roll Suction fan Sliding rice catcher Sorting case Drive roller Shaft end Paddy hopper Sliding rice Wind sorting path/dust exhaust tube Mixed rice grain lifting machine Rotating sorting tube Supply helical supply gutter Finished rice Spiral finishing rice gutter finishing rice flow grain board finishing rice tI grain machine paddy return gutter drive roller shaft pulley tension arm tension pulley layer thickness detector supply side upper grain detector supply side upper grain detector middle part upper grain detector Input interface arithmetic control unit Rotor interface Forward rotation relay Rotation control Motor rotational speed detector Supply side grain calibrator 5a 4a Shaft end finishing Rice flow Down cylinder Finishing rice receiving trough Pumping cylinder Reduction paddy hopper Shaft end transmission belt tilt adjustment Muscle means Reduction shelf Reversing relay Paddy supply control valve Discharge saw handle/Brown rice detector Incline forward rotation relay Incline reverse rotation relay Incline control motor Figure 2

Claims (1)

[Scope of Claims] [1] Finished rice trough 16 for receiving brown rice 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.
A plurality of upper grain detectors 31 on the supply side for detecting grains scraped up by the rotary sorting cylinder 11 and a plurality of grain detectors 31 on the lower supply side are installed at the upper and lower positions of the supply side part of the rotary sorting cylinder 11 of the finishing rice gutter 16. A grain detector 32 is arranged in each case, and this finishing rice gutter 16
At the longitudinally intermediate portion of the rotary sorting cylinder 11 and the reduction shelf 33
An intermediate upper grain detector 34 for detecting grains scraped up by the rotary sorting tube 11 is disposed at an upper position in a certain part, and based on the detection results of these grain detectors 31, 32, and 34, A rotary sorting tube control device for a grain sorting device, which adjusts and controls the rotation speed of a rotary sorting tube 11.