JPH08206606A - Sensing device for husking selector - Google Patents

Abstract

PURPOSE: To reduce the number of sensing means, and reduce the cost by sensing whether unhusked rice grains are or not in an unhusked rice hopper based on the sensing results of a valve opening degree sensor for sensing the unhusked rice supply amount of the unhusked rice hopper and a load current sensor for sensing the load current value of a main motor. CONSTITUTION: When an operation/stop switch 43 is operated on the operation side, a main motor 44 is ON to drive respective rotating sections of a husking selector. Also when an open command signal for the clearance between rolls is output from a CUP 25 to a roll interval adjustment motor 45, the clearance between husking rolls is adjusted in the opening degree. When the non-contact state of rolls is in which the sensing load current value is not varied is sensed by a load current sensor, a close command signal for the roll interval is output. In the case the increase of the load current value is not sensed when the clearance of the husking rolls is adjusted in the closing degree in relation to the sensing of increase of the load current value, the state of no unhusked rice grains in the husking hopper is judged, even when the open state of an unhusked rice feed adjustment valve is sensed by a valve opening degree sensor 41, and the control of the clearance of husking roll is interrupted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detecting device for a hull sorter.

[0002]

2. Description of the Related Art In a hulling / sorting machine having a roll gap adjusting device for adjusting and controlling the roll gap of a hulling roll on the basis of a load current value or a removal rate standard, a hulling / sorting machine is operated automatically. A large number of sensors are provided to start, suspend, and stop the work.

[0003]

SUMMARY OF THE INVENTION The present invention detects the original adjustment state of the adjustment member of the hull sorting machine from the detection result of the detection means having the detection function for each of the
It is intended to reduce the number of detecting means by detecting the adjustment states of other adjusting members by combining the detection results of the plurality of detecting means.

[0004]

The technical means of the present invention for solving such a technical problem is a pair of hulling rolls 3, 3 for hulling and a hulling roll 3, 3. The paddy hopper 2 that stores the paddy for supply to the paddle 3, the main motor 44 that drives the paddy rolls 3, 3, and the pair of paddy rolls 3 on the basis of the load current value or the removal rate. , A roll clearance adjusting motor 45 for opening and closing the clearance, and a load current sensor 32 for detecting the load current value of the main motor 44.
A valve opening sensor 41 that detects the amount of paddy supplied to the paddy hopper 2 and a load current sensor 3 that detects the load current value of the main motor 44.
Based on the detection result of No. 2, the configuration of the detection device of the paddy hull sorting machine is composed of the paddy hopper grain presence / absence detection means for detecting the presence / absence of paddy in the paddy hopper 2.

[0005]

The roll clearance of the hull rolls 3, 3 is set to a predetermined gap, the hull supply control valve 39a is opened to a predetermined opening, and the automatic hulling operation is started. Then, the detection results of the valve opening sensor 41 and the load current sensor 32 are input to the control unit 25.
In such a detection process, the valve opening sensor 41 is set to the paddy hopper 2.
The opening of the paddy supply control valve 39a is detected, and
When the load current sensor 32 detects an increase in the hulling load on the hulls 3 and 3, it is determined that the hull feeding control valve 39a of the hull hopper 2 is opened and the hulls are fed to the hulling rolls 3 and 3. Based on the current value standard or the removal rate standard, the hulling roll 3,3
Gap control is started.

Further, during the clearance control of the hulling rolls 3 and 3, the valve opening sensor 41 is detected to be closed, and the load current sensor 32 causes the hulling rolls 3 and 3 to hull. When the reduction of the load is detected, it is determined that there is no paddy in the paddy hopper 2, the automatic gap control of the paddy roll is stopped, and the gap of the paddy rolls 3 and 3 is kept as it is. Alternatively, the control of the hulling roll gap is stopped in the open state in which the opening is adjusted by a predetermined amount.

[0007]

Embodiments of the present invention shown in the drawings will be described below. First, the configuration of the embodiment will be described. 1
Is a hulling part, and the hulling part 1 is composed of a hull hopper 2, a pair of hulling rolls 3, 3, and the like. Reference numeral 4 denotes a slidable rice wind selection path, in which the slidable rice from the rice hull portion 1 is wind-selected by the sorting wind generated by the suction dust collector 5 in the front, and the light rice husk is sucked by the dust collector 5, the dust collector 5. The mixed rice of heavy brown rice and paddy is discharged through the tube 6 to the outside of the machine, and is dropped and sorted into the sliding-down rice receiving trough 7 below. The mixed rice dropped and sorted into the slide-down rice receiving gutter 7 is fried by the mixed rice fried machine 8 and is supplied to the conveyance start end portion of the supply gutter 14 on the rotary selection cylinder 11 side through the mixed rice hopper 9. It is a configuration.

Reference numeral 10 is a sorting case, and this sorting case 1
The rotary sorting cylinder 11 having a large number of pot holes formed on the inner peripheral surface thereof in 0 has a sorting start side (right side in FIG. 1) and a sorting end side (FIG. 1) so as to rotate around the horizontal axis. On the left),
It is rotatably supported by the drive rollers 12, 12, .... A supply gutter 14 on which a supply helix 13 is supported and a brown rice gutter 16 on which a brown rice helix 15 is supported are horizontally installed in the rotary selection cylinder 11.

When arranging the supply gutter 14 and the brown rice gutter 16 in the rotary selection cylinder 11, as shown in FIG. 2, the supply gutter 14 is placed on the scraping side of the rotary selection cylinder 11 and the brown rice gutter. 16 is disposed on the side of the rotary selection cylinder 11 that rotates downward from above. In this supply gutter 14, the mixed rice of paddy and a part of brown rice scooped up low in the pot hole of the rotary selection cylinder 11 is dropped and sorted, and is further transferred by the supply spiral 13 to the transport end side of the supply gutter 14. Is supplied to the sorting start end side of the rotary sorting cylinder 11, and the supply gutter 14 also has a function of receiving mixed rice.

The end of the brown rice gutter 16 at the end of transportation is the brown rice falling tube 1
7. It is connected to brown rice gutter 19 through brown rice grain plate 18. The brown rice received by the brown rice gutter 16 is the brown rice falling tube 1
7. The brown rice is passed through the brown rice grain plate 18 and dropped into the brown rice gutter 19 to be selected by air, and is further taken out from the brown rice gutter 19 via the brown rice grain cultivator 20. Rotating sorting cylinder 1
Below the sorting end side of No. 1, a paddy gutter 21 is arranged. A paddy grain hopper 22 is connected to the paddy receiving trough 21, and an upper end of the paddy grain hopper 22 is connected to the paddy reducing hopper 23 of the paddy hull 1. Then, the grain mainly composed of the sorted paddy rice that has flowed to the sorting end side of the rotary sorting cylinder 11 is the paddy receiving gutter 21.
In addition, the grain is dropped to the grain hulling machine 1, the grain-reducing hopper 23, the grain is reduced to the grain-sliding unit 1, and the grain is again grained.

Next, the structure of the control unit will be described with reference to FIGS. A large number of switch groups are connected to the control unit 25 having a built-in CPU, and a large number of sensor groups are connected via a signal conversion circuit 36 which is an interface. A large number of actuator groups and a display device group are connected to the unit 25.

Next, these connection relationships will be specifically described. The removal rate upper switch 26, the removal rate lower switch 27, the cylinder rotation high switch 28, the cylinder rotation low switch 29, the automatic / manual switch 30 for switching to automatic or manual, and the rotation speed on the cylinder rotation speed display device 50 described later. A switch group of display changeover switches 31 for switching and displaying the detected load current value,
And a load current sensor 32 for detecting the load current value of the main motor 44, a power supply voltage sensor 33, a power supply frequency (RT)
34, a sensor group of the power supply frequency sensor (ST) 35, a shutter sensor 39 for detecting the fully closed state of the paddy supply control valve 39a, a rotation sensor 40 for detecting the rotation speed of the rotary selection cylinder 11, and a paddy supply control valve. A valve opening sensor 41 comprising a potentiometer for detecting the opening of 39a, a rotary selection cylinder 1
1, a transistor / open collector type scattering sensor 42 for detecting the picked-up state of the grain, a run / stop switch 43
The sensor groups are connected to the respective control units 25 via the signal conversion circuit 36.

Further, a roll for adjusting the roll gap between the main motor 44 for driving the hull sorting machine and the hull rolls 3, 3 from the control section 25 via the signal conversion circuit 36. Gap adjustment mode
The motor 45, a shutter opening adjustment motor 46 for adjusting the opening of the paddy supply adjusting valve 39a, a cylindrical rotation adjusting motor 47 for adjusting the rotation speed of the rotary selection cylinder 11, and a communication device 48 are provided. The control unit 25 has a display tube 49 for displaying characters, numbers, etc., a cylindrical rotation speed display device 50 for displaying the rotation speed of the rotation selection cylinder 11, current display LEDs 51, L.
The ED display device 52 and the buzzer 53 are connected to each other.

Next, the control panel 54 shown in FIG.
Will be described. The control panel 54 includes, for example, a fluorescent display tube type display tube 49 and a cylindrical rotation speed display device 5.
0, current display LED 51, paddy display / shutter open / close display, roll expansion display, L for displaying the presence / absence of abnormality
ED display section 52a, LED display section 52b for displaying whether automatic operation or manual operation, LE for displaying roll development
D display unit 52c, automatic / manual switch 30, removal rate lower switch 27, removal rate upper switch 26, cylindrical rotation low switch 29, cylindrical rotation high switch 28, display changeover switch 3
1 is provided.

Next, the control contents of the CPU 25 will be described. First, the automatic / manual switch 30 is selected on the automatic side, and the run / stop switch 43 is operated on the run side. Then, the main motor 44 is turned on to drive the rotating parts of the paddy hull sorting machine. Next, the initial clearance setting control of the hulling rolls 3 is first performed. An instruction signal for opening the roll gap from the CPU 25 is output to the roll gap adjusting motor 45, so that the hull roll is rolled.
When the gap between the rolls 3 and 3 is adjusted to open for a predetermined time, and the load current sensor 32 detects a non-contact state of the roll in which the detected load current value does not change, a roll gap close command signal is output and the roll is closed. The gap is adjusted. Then, the load current sensor 32
Detects an increase in the load current value and confirms a slight contact between the hulling rolls 3 and 3, then an opening command signal of the roll gap is output, and the roll gap adjusting motor 45 is output. The opening is adjusted for a predetermined time, and the adjustment is set to a predetermined initial gap (for example, 1 mm). Next, the shutter opening initial setting control for adjusting the initial opening of the paddy supply adjusting valve 39a (smaller opening than that during normal work) is performed. CPU 25 to shutter opening adjustment motor 46
An opening command signal is output to the rice paddle control valve 39a to set an initial opening for opening the paddy supply control valve 39a to a predetermined valve opening (for example, 10 mm), and the paddying operation is started. Next, paddy supply control valve 3
A valve opening command signal for adjusting 9a to a supply amount adjusting setting position of an adjusting lever (not shown) is output, and the paddy supply adjusting valve 39a is changed and adjusted to a position corresponding to the set efficiency valve opening. .

Next, the detection information of the load current sensor 32 and the valve opening sensor 41 is input to the control unit 25 at every predetermined time, and it is judged whether or not these detection values have settled within a predetermined value and are stable. When the load current becomes stable, the control shifts to the roll clearance control based on the load current value. Then, the detected load current value of the load current sensor 32 is sent to the control unit 25,
The control reference load current value and the detected load current value are compared, and the detected load current value is higher than the control reference load current value (or
If it is low, an opening (or closing) command signal is output to the roll gap adjusting motor 45, the gap between the hulling rolls 3, 3 is adjusted to a predetermined amount on the open side (or closed side), and the detected load current value is reached. Is restored to the control reference load current value. Further, when the detected load current value is within the range of the control reference load current value, the control command signal is not issued and the hulling operation is performed while maintaining the roll gap as it is.

Next, the start and end control of the hulling roll clearance control based on the load current value as described above will be described. The detection results of the valve opening sensor 41 and the load current sensor 32 detect the presence or absence of paddy in the paddy hopper 2. Based on the detection results, the start and end control of the paddy roll gap control based on the load current value is performed. Is done. That is,
When the valve opening sensor 41 detects the opening of the paddy supply control valve 39a and the load current sensor 32 detects an increase in the load current value, the paddy hopper 2 is opened and the paddy rolls 3 and 3 are rolled.
It is determined that the load has been increased and the hulling work state has been entered, and the hulling roll clearance control based on the load current value reference is started.

Further, during the hulling roll clearance control based on the load current value reference, the clearance between the hulling rolls 3 and 3 is closed and adjusted in connection with the detection of the decrease in the load current value of the load current sensor 32. However, if the increase in the load current value of the load current sensor 32 is not detected, even if the valve opening sensor 41 detects the open state of the paddy supply control valve 39a, the paddy hopper 2 is subjected to paddy. It is judged that the grain has not been supplied and the grain is not supplied, and the hulling roll gap control based on the load current value is stopped, and the hulling rolls 3 and 3 are opened as they are or a predetermined amount is adjusted. Hold in the gap after doing.

This control may be applied to the hull roll clearance control based on the removal rate standard. In the prior art, a grain sensor for detecting the presence or absence of paddy in the paddy hopper 2 is provided to detect the presence of paddy and to detect the opening of the valve opening sensor 41 to detect the gap of the paddy roll based on the load current value. The control was started. In such a configuration, if the Glen sensor fails in the detection state without paddy, the hulling roll gap control cannot be started, and if the fault occurs in the detection state with the paddy, the hulling work ends. Even at this time, it was judged that there was paddy, so that the gap between the paddy rolls 3 and 3 was closed, and the paddy roll was apt to wear.

However, with the above-mentioned structure, the presence or absence of paddy in the paddy hopper 2 can be detected by the detection results of the valve opening sensor 41 and the load current sensor 32, and the Glen sensor is omitted. The start and end control of the load current value reference control can be performed, and the cost can be reduced. The roll deployment sensor for detecting the roll deployment state in which the gaps between the hulling rolls 3 and 3 are opened at once is omitted, and the operation state of the roll deployment means is detected based on the detection result of the load current sensor 32. Is to detect. That is, when the detected load current value of the load current sensor 32 is drastically reduced during the hulling work, it is determined that the roll unfolding means is unfolded and the gap between the hulling rolls is wide open all at once. In addition, when the detected load current value significantly increases, it is determined that the gap between the hull rolling rolls has returned from the expanded state to the closed hull state.

In the conventional apparatus, a special roll expansion sensor is provided to detect the operation of the roll expansion means to control the suspension / standby / start of the hull roll clearance control. . In this case, if the roll expansion sensor fails in the open circuit state, the roll clearance control cannot be started, and if it fails in the closed circuit state, the control is continued even during the roll expansion. When the operation of ending the roll expansion is performed, the paddy roll may be in a pressure contact state, causing damage to the paddy or overloading, which may cause a problem that the rotation of the paddy roll is stopped. . However, with the above configuration, the function of the roll expansion sensor can be fulfilled by the load current sensor 32, and the drawbacks of the conventional device can be solved while reducing the number of sensors, and the hull roll gap can be reduced. It is possible to smoothly start / suspend / standby the control.

Based on the detection result of the valve opening sensor 41, the manual operation state of the paddy supply control valve 39a by the operator is judged, and the start and end control of the paddy roll clearance control based on the load current value is performed. . That is, when the valve opening sensor 41 is rapidly changed from 50-60% to 0% during the hulling operation, the operator manually closes the paddy supply control valve 39a. Therefore, the control of the clearance of the hulling roll based on the above-mentioned load current value is interrupted, and the gap of the hulling roll is maintained as it is, or the gap after the opening of the predetermined hull is adjusted to suspend or wait. Transition to the state.

Further, the detection state of the valve opening sensor 41 changes rapidly from, for example, 0% to 5 to 10% or more,
Moreover, when the load current sensor 32 detects an increase in the load current value, the paddy supply control valve 39a is manually adjusted to open, but it is judged that the paddy hopper 2 is not paddy, and the gap of the paddy roll is determined. When the paddle is supplied to the paddy hopper 2 and supplied to the paddy rolls 3 and 3, and the load current sensor 32 detects an increase in the load current value, the load is started from this time point. The hull roll clearance control based on the current reference is restarted.
Therefore, it is possible to prevent unnecessary abrasion and overload of the hulling roll.

Next, the means for correcting the control reference value based on the load current value reference will be described. The control unit 25 is connected to a timing device (not shown) that measures the operating time via an input interface.
A control reference changing circuit (not shown) is connected to the EEPROM 57 via an output interface.
When the hulling work is started by the hulling rolls 3 and 3, an operating time of a predetermined load current value or more is counted by the timing device, input to the control unit 25, and stored in the storage unit. Then
The correction factor is calculated by a predetermined calculation formula every time a predetermined time elapses. That is, "(1500 hours-operating time / 5) ÷ 15
The correction rate is calculated at "00 hours", and the numerical value obtained by dividing the calculated correction value by the control reference value is used as the correction control reference value. Then, at every predetermined operation time, the control reference value is sent to the EEPROM 57 via the control reference changing circuit, the control reference value is rewritten and stored, and the load current value is controlled with the new control reference value.

However, the control reference value of the hulling roll clearance control, which is performed on the basis of the load current value, is corrected so as to decrease successively at predetermined time intervals, and the hulling roll is corrected by the corrected control reference value. The gap is controlled. Therefore, the roll gap is less closed due to the abrasion of the hulling roll, and the damage to the brown rice can be prevented.

Next, the operation of FIGS. 1 and 2 will be described. The paddy placed in the paddy hopper 2 is supplied to the pair of paddy rolls 3 and 3 to be padded. The rice that has been hulled is
The light rice husks are supplied to the downdraft rice selection path 4 below and are wind-selected, and the light rice husks are discharged out of the machine through the suction dust discharger 5 and the dust discharge tube 6, and the mixed rice of heavy brown rice and rice is Lower sliding rice gutter 7
Be dropped and sorted. Next, the mixed rice dropped and selected on the scraped rice receiving trough 7 is fried by the mixed rice lifting machine 8 and supplied to the mixed rice hopper 9, and further, the inside of the supply trough 14 is conveyed from the conveyance start end to the conveyance end. It is conveyed toward the section and is supplied to the sorting start end side of the rotary sorting cylinder 11.

The mixed rice fed to the starting side of the rotary sorting cylinder 11 is picked up while being inserted into the pot hole on the inner peripheral surface and scooped up, and the small brown rice is scooped up high and the brown rice gutter 16
The large-sized paddy and a part of the brown rice are scooped up low and dropped into the supply gutter 14. In this way, the brown rice selected by the brown rice gutter 16 is the brown rice gutter 16
The inside is conveyed by the brown rice spiral 15 to the sorting end side of the rotary sorting cylinder 11, and then it is dropped through the brown rice falling cylinder 17 and the brown rice grain plate 18 into the brown rice receiving trough 19 while being wind-selected, and further the brown rice is fried. It is taken out of the machine via the grain machine 20.

The mixed rice dropped into the supply gutter 14 is conveyed by the supply spiral 13 and supplied to the sorting start end side of the rotary sorting cylinder 11 for re-sorting, and the inside of the rotary sorting cylinder 11 is sorted to the sorting end side. The flowed and sorted grains fall into the paddy receiving gutter 21, and are further reduced to the paddy rolls 3 and 3 via the paddy grain elevator 22 and the paddy reducing hopper 23, and the paddy is rolled again. It is removed.

[0029]

As described above, according to the present invention, the result of detection by the valve opening sensor 41 in the state of paddy supply from the paddy hopper 2 to the paddy rolls 3 and 3 and the paddy roll. From the detection result of the load current sensor 32 of the hull load of 3 and 3, the paddy hopper 2
It is possible to determine the presence or absence of paddy in the inside, and it is possible to reduce the number of detecting means and reduce the cost.

[Brief description of drawings]

FIG. 1 is a cut side view of a paddy sorting machine.

[Fig. 2] Rear view of cutting of a hulling and sorting machine

FIG. 3 is a block diagram.

FIG. 4 is a block diagram.

[Figure 5] Front view of the panel

[Explanation of symbols]

 1 Hulling part 2 Hulling hopper 3 Hulling roll 4 Sliding rice wind selection part 5 Suction dust collector 6 Dust collector 7 Sliding rice trough 8 Mixed rice hopper 9 Mixed rice hopper 10 Sorting case 11 Rotating sorting cylinder 12 Drive roller 13 Supply spiral 14 Supply gutter 15 Brown rice spiral 16 Brown rice gutter 17 Brown rice falling tube 18 Brown rice grain plate 19 Brown rice receiving gutter 20 Brown rice grain grabbing machine 21 Grain receiving gutter 22 Grain milling machine 23 Reduction hopper 25 Control unit 26 Depth rate upper switch 27 Depth rate lower switch 28 Cylindrical rotation high switch 29 Cylindrical rotation low switch 30 Automatic / manual switch 31 Display change switch 32 Load current sensor 33 Power voltage sensor 34 Power frequency sensor (R -T) 35 Power frequency sensor (ST) 36 Signal conversion circuit 39 Shutter sensor 39a Paddy supply control valve 40 Rotation sensor 41 Valve opening sensor 42 Scattering sensor 43 Run / Stop Switch 44 Main Motor 45 Roll Gap Adjustment Motor 46 Shatter Opening Adjustment Motor 47 Cylindrical Rotation Adjustment Motor 48 Communication Equipment 49 Display Tube 50 Cylindrical Rotation Speed Display Device 51 Current Display LED 52 LED display device 53 Buzzer 54 Control panel 57 EEPROM

Claims (1)

[Claims] 1. A pair of hulling rolls 3, 3 for hulling.
And a paddy hopper 2 for storing paddy for supplying to the paddy rolls 3, 3, a main motor 44 for driving the paddy rolls 3, 3, and a load current value reference or a removal rate reference A roll clearance adjusting motor 45 for opening and closing the clearance between the pair of hulling rolls 3, 3.
In a hulling and sorting machine having a load current sensor 32 for detecting the load current value of the main motor 44, a valve opening sensor 41 for detecting the amount of paddy supplied to the paddy hopper 2 and a load current for the main motor 44. Load current sensor 3 to detect the value
A detection device for a hulling and sorting machine, comprising: a rice hopper grain presence / absence detecting means for detecting the presence or absence of paddy in the paddy hopper 2 based on the detection result of 2.