JPH0221974A - Detector abnormality deciding device and automatic controlling and stopping device for hulling and screening machine - Google Patents

Abstract

PURPOSE:To easily detect the abnormality of plural detectors by making decision that the detector failing to be detected of detection information is abnormal when the detection information from either detector of >=2 pieces of the detectors is not detected and the detection information from the other detector is detected. CONSTITUTION:The case in which the lower, splashing detector does not detect grains and both the unpolished rice quantity detector 33 and the reduced grain detector 34 detect the grains indicates the state that the upper splashing detector fails to detect the grains even it the grains are scooped up by the pot holes of a rotary screening cylinder 11 and, therefore, decision is made that the lower splashing detector is abnormal. The abnormality is then announced to an operation panel 45. A stop signal is outputted from a comparison control section to a motor for rotating speed control in accordance with this abnormality announcement, by which the rotating speed control of the rotary screening cylinder 11 is stopped.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a huller sorting machine that sorts mixed rice of paddy and brown rice using a rotating sorting tube that has a large number of pot holes on its inner circumferential surface. The present invention relates to a detector abnormality determination device and an automatic control stop device.

[Prior art and problems to be solved by the invention] Grain sorting in which mixed rice of paddy and brown rice is sorted by rotating a rotary sorting cylinder, which has a large number of pot holes on its inner circumferential surface, around a horizontal axis. There is a rice hulling sorting machine equipped with a device. Inside this rotating sorting cylinder,
The grain receiving gutter that receives the brown rice is suspended horizontally, and the brown rice with short grain length that was pumped high into the pot hole of the rotating sorting tube falls into the grain receiving gutter, and the brown rice with long grain length that was pumped low Paddy rice is sorted as it falls into a rotating sorting tube.

This hulling sorter is equipped with a detector that detects whether or not the grains are falling into the grain receiving trough in the rotating sorting tube and the amount of the grains falling, and returns the grains from the sorting end side of the rotating sorting tube to the husking section. A detector for detecting the amount of grains received in the grain receiving trough, a detector for detecting the amount of grains to be sorted in the two-turn sorting cylinder, etc. are provided. Based on the results of these detectors, the control of the paddy supply control valve in the hulling section, the rotation speed adjustment of the two-rotation sorting cylinder, and the degree of inclination of the two-rotation sorting cylinder from the sorting start end to the sorting end side are controlled. regulation control.

There is one that performs adjustment control such as adjustment control of a grain valve for adjusting the receiving area of a grain receiving trough.

The present invention provides, in such a rice hulling sorting machine, an abnormality determination device for these detectors and a device for stopping the drive of a control motor that automatically adjusts and controls the adjustment means of the hulling and sorting machine when an abnormality occurs in the detector. The aim is to provide stable rice hulling and sorting work.

[Means to solve the problem]

The technical means of the invention of item 1 for solving such technical problems is that the removing part 1 and a large number of pot holes are formed on the inner circumferential surface, rotate around a horizontal axis, and A grain receiving gutter 1 in the rotary sorting tube 11 is equipped with a rotary sorting tube 11 in which a grain receiving gutter 16 for receiving brown rice is installed.
Detectors 32, 32 . A detector 34 for detecting the amount of grains discharged from the sorting end side of the rotary sorting tube 11 and returned to the shredding section 1. Detector 331 for detecting the amount of grain received in the grain receiving trough 16 Rotary sorting cylinder 1
Two or more detectors 32, 33°, etc. are provided among the detectors 30 for detecting the amount of grains to be sorted in one, and any one of these detectors 32, 33,… is provided. A method for removing rice hulls characterized in that when detection information is not outputted from a detector 32 and detection information is detected from another detector 33, the detector 32 from which detection information is not detected is determined to be abnormal. This is a configuration of a detector abnormality determination device for a sorting machine, and the technical means of the invention in item 2 is such that a large number of pot holes are formed in the scraping part 1 and the inner peripheral surface, and rotates to , and
This rice hulling sorting machine is equipped with a rotary sorting tube 11 in which a grain receiving gutter 16 for receiving brown rice is installed, and the condition of the grains falling into the grain receiving gutter 16 in the rotating sorting tube 11 is checked. Detectors 3 and 31 for detecting, and a detector 34 for detecting the amount of grains discharged from the sorting end side of the rotary sorting tube 11 and returned to the threshing section 1
, a detector 3 for detecting the amount of grain received in the grain receiving trough 16;
32 Any two or more detectors 3, 32, 33 of the detectors 30 that detect the amount of grains to be sorted in the rotating sorting cylinder 11
is provided, and the detection information from any one of the detectors 32 among these detectors 31, 32, and 33 is not output, and
When detection information is detected from another detector 33, the detector 32 from which the detection information is not detected is determined to be abnormal, and when this abnormality is detected, the control motor 40 adjusts and controls the adjustment part of the huller. The present invention is an automatic control stop device for a rice huller sorting machine, which is characterized by stopping the operation of the rice huller.

[Operation and Effect of the Invention] The invention of item 1 provides that the detection information from any one of the detectors 32, 32, 33 is not output,
In addition, when detection information is detected from other detectors 31 and 33, the detector 3 from which calibration information is not detected
2 is determined to be abnormal, it is possible to easily detect the abnormality of a plurality of detectors 3, 32, . . . .

In addition, in the invention of item 2, a plurality of detectors 31.3
2. If any one of the detectors 32 becomes abnormal, the control motor that automatically adjusts the adjustment means of the huller sorter will be stopped, which will prevent incorrect automatic adjustment control based on abnormal detection information. It is possible to carry out efficient and stable hulling and sorting work without interrupting the hulling work by continuing the work through human adjustment by the worker after an abnormality is reported. It is.

〔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,
It is made up of 3rd grade. 4 is a sliding rice wind selection path, in which the separating air generated by the suction fan 5 in front of the rice sloughing section 1
The rice husks are discharged from the machine through a suction fan 5 through a dust exhaust pipe 6, and the mixed rice of brown rice and paddy is dropped and supplied to a droplet receiving trough 7 below. The mixed rice that has fallen into the fallen rice receiving gutter 7 is fried by the mixed rice lifting machine 8 into the mixed rice hopper 9, and the fried mixed rice is sent to the feed gutter 1 on the rotary sorting tube 11 side.
It is configured to be conveyed to the starting end of No. 4.

Reference numeral 10 denotes a sorting case. Inside the sorting case 10, a rotary sorting tube 11 having a large number of potholes on its inner peripheral surface is arranged so that it can rotate around a horizontal axis. right side)
and the discharge side end (left side in FIG. 2) of the drive roller 12.
, 12, and is rotatably supported. This rotating sorting tube 1
1, a supply gutter 14 with a feed helix 13 and a finishing rice gutter 16 with a finishing rice helix 15 are installed horizontally.

In arranging the supply gutter 14 and the finished rice gutter 16 in the rotary sorting cylinder ll, the supply gutter 14 is placed on the pumping side rotating from the bottom to the top of the rotary sorting cylinder 11, as shown in FIG. The finished rice gutter 16 is arranged from the top to the bottom of the rotary sorting tube 11, and the mixed rice drawn up low by the pot hole of the rotary sorting tube 11 falls into the supply gutter 14 and is collected by the supply helix 13. It is configured to be transferred to the terminal end of the supply gutter 14, and the feed gutter 14 also functions as a mixed rice receiving gutter.

The discharge side end of the finishing rice trough 16 is connected to the finishing rice receiving trough 19 via the finishing rice flow lower pipe 17 and the finishing rice grain board 18, and the finished rice is transferred from the finishing rice grain board 18 to the finishing rice receiving trough 19. The brown rice that is wind-selected while falling into the receiving trough 19 and flowing down into the finished rice receiving trough 19 is taken out of the machine by the finished rice lifting machine 20.

A paddy receiving trough 21 is provided below the sorting end side of the rotary sorting tube 11, and the grains mainly composed of brown rice that have fallen into the paddy receiving trough 21 after sorting are sent to a husking section by a husking machine 22. 1 reduced paddy hopper 23
It is designed to be reduced to

Further, from the end of the sorting case 10 on the side of the scraping section 1, there are the shaft end 15a of the finished rice helix 15, the shaft end 13a of the supply helix 13, and the drive roller shafts 24, 24 that drive the drive rollers 12, 12. Shaft end 24a.

1 24a are extended to the side of the shedding part 1, and the pulleys 2 are attached to these shaft ends 13a, 15a, 24a, 24a.
5,25. ...and these pulleys 25. ．．
25. The transmission belt 26 is hooked and rotated. Among these pulleys 25, 25, ..., the pulley 25 attached to the shaft end 15a of the finishing helix 15 is configured as a continuously variable speed pulley 25a that expands and contracts with a spring, and the tension pulley 28 of the tension arm 27 The effective diameter of the continuously variable pulley 25a is adjusted by the movement of , and the rotational speed of the transmission belt 26 is changed and adjusted, thereby increasing or decreasing the rotational speed of the rotary sorting tube 11.

Incidentally, reference numeral 29 is an inclination adjusting means for adjusting the degree of inclination of the rotary sorting tube 11 by vertically moving the rear portion of the rotary sorting tube 11 in the longitudinal direction, that is, the right side portion in FIG.

Reference numeral 30 denotes a layer thickness detector for detecting the layer thickness in the fluidized bed of grains to be sorted, which is formed on the drawing side that rotates from the bottom to the top inside the rotary sorting cylinder 11. It is composed of a plate that moves up and down in contact with the upper surface of the fluidized bed of grains to be sorted, and detects the amount of grains to be sorted. In addition, instead of this layer thickness detector 30, the amount of grains to be sorted may be detected by detecting the upper end side position and the lower end side position of the fluidized bed of the grains to be sorted. Moreover, this layer thickness detector 30 may be constructed of a light emitting element and a receiving element.

Reference numerals 31 and 32 indicate an upper scattering detector and a lower scattering detector that are vertically shifted in the finishing rice gutter 16 and detect the presence or absence of grains falling into the finishing rice gutter 16 and the amount of falling grains. 33 is
A brown rice amount detector provided at the outlet 20a of the finished rice lifter 20 detects the amount of brown rice taken out from the finished rice lifter 20. In addition, this brown rice detector 33 may be provided in the passage through which brown rice flows from the finished rice [16 or the finished rice gutter 16 to the finished rice lifting machine 2o. Reference numeral 34 denotes a reduced grain detector provided in the reduced paddy hopper 23, and this reduced grain detector 34 detects grains mainly composed of paddy returned from the sorting end side of the rotary sorting tube 11 to the shredding section 1. It detects the amount. 35 is a rotation speed detector that detects the rotation speed of the rotary sorting cylinder 11.

These layer thickness detectors 30. Upper scattering detector 31° Lower scattering detector 32. Brown rice amount detector 33. Detection information detected by the reduced grain detector 34 is configured to be input to a comparison control section 38 incorporating a CPU via an amplifier 36 and an input interface 37. Further, a normal rotation drive circuit 41 and a reverse rotation drive circuit 42 are connected to the comparison control unit 38 via an output interface 39 for driving the rotation speed control motor 4o in forward and reverse rotations. Comparison control section 38
Adjustable grain scattering setting reference information in the upper scattering detector 31. The detection information from the lower scattering detector 32 is compared, and the following control is performed.

■When the upper scattering detector 31 and the lower scattering detector 32 are detecting approximately the same amount of grains and the rotating sorting tube 11 is normally pumping up the grains to be sorted, the rotation speed of the rotating sorting tube 11 is is appropriate, so no control drive signal is output from the comparison control section 38 to the rotation speed control motor 40.

■If the upper scattering detector 31 detects a large amount of grains, the lower scattering detector 32 detects a small amount of grains, and the rotating sorting cylinder 11 is pumping too much, the rotation speed setting standard information The detection information is compared, and a deceleration drive signal is outputted from the comparison control section 38 to the forward rotation drive circuit 41, and the rotation speed control motor 40 that adjusts and controls the rotation speed of the rotating sorting tube 11 is driven to rotate in the normal rotation. Transmission gear 43. The effective diameter of the continuously variable speed pulley 25a is reduced through the adjustment bolt 44, and the transmission speed of the transmission belt 26 is adjusted to decrease.

■If the upper scattering detector 31 detects a small amount of grains, the lower scattering detector 32 detects a large amount of grains, and the rotating sorting cylinder 11 is insufficiently pumped, the rotation speed setting standard information The detected information is compared, and a speed increasing drive signal is outputted from the comparison control section 38 to the reverse drive circuit 42, and the rotation speed control motor 40 that adjusts and controls the rotation speed of the rotary sorting cylinder 11 is driven in reverse, and the speed is changed. Gear 43. The effective diameter of the continuously variable speed pulley 25a is expanded via the adjustment bolt 44, and the transmission speed of the transmission belt 26 is increased and adjusted.

■The lower scattering detector 32 does not detect grains, and the brown rice amount detector 3
3 and the reduced grain detector 34 detect grains, the lower scattering detector 32 detects grains even though the grains are being drawn up in the pot hole of the rotary sorting tube 11. Since no particles are detected, the lower scattering detector 32 is determined to be abnormal, and an abnormality information of the lower scattering detector 32 is notified on the operation panel 45.

■Based on the above-mentioned abnormality notification, a cutoff drive signal is output from the comparison control unit 38 to a switch (not shown), the rotation speed control motor 40 becomes inoperable, and the rotation speed control of the rotation sorting cylinder 11 is stopped. be done.

Therefore, even if abnormal detection information is sent from the upper scattering detector 31 and the lower scattering detector 32, the rotation speed of rotation sorting i#11 will not be erroneously controlled based on this information, and the abnormality will not be notified. By continuing the work based on the manual adjustment by the worker, stable hulling sorting work can be performed.

Although not shown in the drawings, the detection results of the layer thickness detector 30 are also sent to the comparison control section 38, and from the comparison control section 38 to the control motor (not shown) of the paddy supply control valve 46 of the hulling section 1. A drive control signal is sent to adjust and control the amount of paddy supplied, and the detection information detected by the brown rice amount detector 33 and the reduced grain detector 34 are compared. The signal is sent to the control unit 38, where the detection amounts of the surface detectors 33 and 34 are compared, and the comparison control unit 38 drives a motor (not shown) for controlling the inclination adjustment means 29 that adjusts the inclination of the rotating sorting tube 11. A control signal is output and the relevant control is performed.

In addition, when setting reference information such as the rotation speed in the comparison control unit 38, it may be set artificially and freely, or, for example, the grain length and moisture content of grains to be sorted may be set using a detector. It may be detected and automatically set based on the detection result.

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 rice hulling machine is driven. Then, the paddy supplied from the paddy hopper 2 to the dehulling rolls 3, 3 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 removed from the dust exhaust pipe 6 outside the machine. is discharged to. The mixed rice of brown rice and paddy is dropped and supplied to the sliding rice receiving trough 7, fried by the mixed rice grain lifting machine 8 to the mixed rice hopper 9, and then fed to the starting end side of the supply trough 14 on the rotary sorting cylinder 11 side. Then, the rotating sorting cylinder 11 is
is supplied to the supply end of the

Next, the mixed rice is pumped up through the pot hole of the rotary sorting tube 11 which is rotating clockwise, and brown rice with short grain length is pumped up high and falls into the finished rice @16. In addition, the mixed rice of paddy and some brown rice that has been pumped low is supplied [1
4 and the rotary sorting cylinder 11 to be sorted, and the supply gutter 14
The unsorted mixed rice that has fallen is supplied by the supply helix 13 @
From the conveyance terminal end of 14, it is again supplied into the rotary sorting cylinder 11 and is re-sorted.

In addition, the finished rice that has fallen into the finished rice @ 16 is conveyed to the finishing rice flow lower tube 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 grains, mainly consisting of paddy, sent to the sorting end of the rotary sorting cylinder 11 fall into the lower paddy receiving trough 21 and are sent to the reduced paddy hopper 23 of the threshing section 1 by the paddy lifting machine 22. It is reduced and stripped again.

As mentioned above, during the sorting work of mixed rice, the brown rice that is pumped up high through the pot hole of the rotating sorting tube 11 falls into the finished rice gutter 16, and the paddy rice that is pumped up low falls into the supply gutter 14 and the rotating sorting tube 11. At the same time, it flows from the supply side to the discharge side and is sorted, and during such sorting, the following adjustment control is performed.

■If the upper scattering detector 31 and the lower scattering detector 32 detect approximately the same amount of grains and the rotational speed of the rotating sorting tube 11 is appropriate, the comparison control unit 38 sends a rotational speed control motor. 4
The control drive signal to 0 is not output, and the rotating sorting tube 11 is maintained at the same rotation speed. When grains are detected, the comparison control unit 3
A deceleration drive signal is output from 8, and the transmission speed of the transmission belt 26 is adjusted to decrease. Also, the upper scattering detector 31 detects a small amount of grain, and the lower scattering detector 32 detects a large amount of grain In this case, a speed-increasing drive signal is output from the comparison control unit 38, and the transmission speed of the transmission belt 26 is adjusted to increase. 33 and the reduced grain detector 34 both detect grains, the lower scattering detector 32 detects grains even though the grains are being drawn up in the pot hole of the rotary sorting cylinder 11. Since this is an abnormal condition in which particles are not detected, the lower scattering detector 3
2 is determined to be abnormal, and the lower scattering detector 32 is displayed on the operation panel 45.
1) Based on the above-mentioned abnormality notification, a stop signal is output from the comparison control section 38 to the rotation speed control motor 40, and the rotation sorting cylinder 11
rotation speed control is stopped.

Since the above-mentioned adjustment control is performed, the upper scattering detector 31
Even if abnormal detection information is sent from the lower scattering detector 32, the rotation speed of the rotating sorting cylinder 11 will not be incorrectly controlled based on this information, and the operator will not be able to adjust the rotation speed based on the abnormality notification. By continuing the work, it is possible to carry out efficient and stable hulling sorting work.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention; FIG. 1 is a perspective view, FIG. 2 is a cutaway side view, and FIG. 3 is a cutaway rear view.
FIG. 4 is a circuit diagram. Explanation of symbols 3a Slipping part Slipping roll Suction fan Slide Dropped rice catcher Sorting case Drive roller Shaft end Finished rice Spiral Finishing rice pipe (Grain catcher) Finished rice flow Grain board Finished rice grain lifting machine Paddy catcher Return Paddy hopper 5a 0 a Paddy hopper sliding rice wind sorting path dust exhaust tube mixing rice lifting machine rotating sorting tube supply spiral supply gutter shaft end finishing rice flow lower tube finishing rice receiving trough take-out outlet paddy lifting machine drive roller shaft 4a 5a Shaft end portion 25 Pulley continuously variable speed pulley 26 Transmission belt tension arm tension pulley inclination adjustment means 30 Layer thickness detector top scattering detector
32 Bottom scattering detector Brown rice amount detector Reduced grain detector 35 Rotation speed detector Amplifier input interface Comparison control section output interface Rotation speed control motor (control motor)

Claims (1)

[Scope of Claims] [1] The shedding part 1 has a large number of pot holes formed on its inner peripheral surface, rotates around a horizontal axis, and has a grain receiving trough 16 built therein to receive brown rice. Detectors 3 and 32 for detecting the falling state of grains into a grain receiving trough 16 in the rotary sorting tube 11, and a rotary sorting tube 11. A detector 34 detects the amount of grains discharged from the sorting end side and returned to the threshing section 1, a detector 33 detects the amount of grains received in the grain receiving trough 16, and a detector 33 in the rotary sorting tube 11. Two or more detectors 32, 33, . . . are provided among the detectors 30 for detecting the amount of grain to be sorted, and these detectors 32
, 33, ..., when detection information is not output from any one of the detectors 32 and detection information is detected from another detector 33, the detector 3 does not detect detection information.
1. A detector abnormality determination device for a rice huller sorting machine, characterized in that the detector abnormality determination device determines that a condition of 2 is abnormal. [2] A scraping part 1 and a rotary sorting cylinder 11 which has a large number of pot holes on its inner circumferential surface, rotates around a horizontal axis, and has a grain receiving trough 16 built therein for receiving brown rice. Detectors 31 and 32 for detecting the falling state of grains into the grain receiving trough 16 in the rotary sorting tube 11, and grains discharged from the sorting end side of the rotary sorting tube 11. A detector 34 detects the amount of grains that are returned to the threshing section 1, a detector 33 detects the amount of grains received in the grain receiving trough 16, and a detector 33 detects the amount of grains to be sorted in the rotary sorting tube 11. Any two of the detectors 30 to detect
or more detectors 31, 32, 33 are provided, and detection information from any one of these detectors 31, 32, 33 is not output, and detection information is not output from the other detector 33. When the information is detected, the detector 32 that does not detect the detected information is determined to be abnormal, and when this abnormality is detected, the control motor 4 controls the adjustment part of the huller sorter.
An automatic control stop device for a rice huller sorting machine, characterized by stopping the operation of a rice huller.