JPH09299814A - Controller for husking separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a husking separator in condition of not exceeding a prescribed level of noise or vibration. SOLUTION: Husking work is conducted while the detected load amperage of a motor for driving husking rolls 3, 3 being compared with a control standard value and the clearance between the rolls 3, 3 being controlled by a load amperage standard, noise during the work is detected by a noise sensor 58, and the detected noise is compared with a standard noise value. When the detected noise is higher than the standard, a rough rice supply control valve 39a is adjusted to reduce the operational noise by a prescribed amount. In the control, the noise standard is given priority over the load amperage standard, and the work is done with the noise reduced. In this way, the efficient husking work is conducted with the noise kept in a prescribed low range, avoiding the machine operation under an excessive load to improve the durability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a hull sorting machine, which operates the hull sorting machine under a predetermined noise or vibration.

[0002]

2. Description of the Related Art In a control device for a hulling sorting machine, a hulling roller is used.
Based on the load current value of the drive motor of the roll, or based on the detected removal rate of the hulled rice that has been hulled, the roll of the hulling roll is kept so as to maintain a predetermined removal rate. -Automatic control of the crevice clearance is known.

[0003]

Problems to be Solved by the Invention Since the control device of the conventional hulling / sorting machine is controlled on the basis of the working efficiency or working accuracy, the hulling efficiency or the sloughing rate of the fallen rice is kept constant. Although the work is carried out while being maintained, since the work is performed by disregarding noise and vibration, noise has become a problem when hulling work is performed in a residential area.

Therefore, the present invention is intended to solve such a problem by carrying out the hulling and sorting operation while keeping the noise or the like to a predetermined value or less while keeping the efficiency relatively.

[0005]

The technical means of the present invention for solving such a technical problem is a pair of hulling rolls 3 and 3 for hulling the paddy supplied from the paddy hopper 2. A grain supply amount adjusting means for adjusting a grain supply amount to the hulling rolls 3 and 3, and a roll gap adjusting device for adjusting a roll gap of the hulling rolls 3 and 3. , The main motor 44 that drives the hulling rolls 3 and 3 with a three-phase commercial power source and the roll gap of the hulling rolls 3 and 3 are opened and closed based on the load current value reference or the removal rate reference. Roll gap automatic control means, working state detecting means for detecting noise or vibration of a hull sorting machine, and the grain supply amount adjusting means or the roll gap based on the detection result of the working state detecting means. And a hulling work automatic control means for adjusting and controlling the adjusting means with priority over the roll gap automatic control means. It has a structure of a control device for sliding sorter.

[0006]

When paddy is fed to the pair of paddy rolls 3 and 3 to carry out the paddy work, for example, the load current of the main motor 44 for driving the paddy rolls 3 and 3 is increased. The roll clearance control of the hulling rolls 3 and 3 is performed based on the detected value and the load current value reference, and the hulling operation is performed while maintaining the detected load current value at a predetermined reference value.

During such work, for example, the noise sensor 58 detects the noise during work and compares it with the reference noise value. If the detected noise is high, a noise reduction command is issued and the paddy The supply control valve 39a is adjusted to a predetermined amount decrease side, or the roll gap of the hulling rolls 3, 3 is adjusted to a decrease side to reduce the work noise. The husking noise causes hulling work.

[0008]

As described above, according to the present invention, even when hulling work is performed in a residential area, the hulling work can be performed so as to reduce noise and not disturb the surroundings. It is possible to perform hulling work while maintaining high efficiency in the lowered range.

[0009]

Embodiments of the present invention shown in the drawings will be described below. First, the overall configuration of a hulling and sorting machine will be described with reference to FIG. The hulling section 1 is composed of a hull hopper 2, a pair of hulling rolls 3, 3. 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 paddy / brown rice is discharged to the outside of the machine through the tube 6, and is dropped and sorted into the sliding-down rice receiving trough 7 below. Next, the mixed rice is fried by the mixed rice fried machine 8 and is supplied to the conveyance start end of the supply gutter 14 on the rotary selection cylinder 11 side through the mixed rice hopper 9.

In the sorting case 10, a rotary sorting cylinder 11 having a large number of jar holes formed on its inner peripheral surface is rotated so as to rotate around the horizontal axis, and the sorting start end side (see FIG. 1- (1)). The right side) and the sorting end side (the left side in FIG. 1- (1)) are rotatably supported by drive rollers 12, 12, .... In the rotary sorting cylinder 11, a supply gutter 14 on which a supply spiral 13 is supported, and a brown rice gutter 16 on which a brown rice spiral 15 is supported.
However, the husband and the wife are crossed over.

When arranging the supply gutter 14 and the brown rice gutter 16 in the rotary selection tube 11, as shown in FIG. 1- (2), the supply gutter 14 is placed on the scraping side of the rotary selection tube 11. In addition, the brown rice gutter 16 is arranged 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 selected, and further, the selected grain is supplied by the supply spiral 13 at the end of conveyance of the supply gutter 14. Is supplied to the sorting start end side of the rotary sorting cylinder 11 and is supplied to the supply gutter 1
4 also has a function of selecting mixed rice.

The end of the brown rice gutter 16 on the conveying side 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
A paddy gutter 21 is arranged at a lower position on the sorting end side of No. 1. A paddy grain hopper 22 is connected to the paddy receiving trough 21, and an upper end portion of the paddy grain hopper 22 is connected to the paddy reducing hopper 23 of the paddy sliding unit 1. Then, the sorted grains having a high mixing ratio of the paddy that flowed toward the sorting end side of the rotary sorting cylinder 11 drop into the paddy receiving trough 21, and then pass through the paddy grain lifting machine 22 and the paddy reducing hopper 23 to remove the grain. It is a structure that is returned to the part 1 and again hulled.

Next, the structure of the control unit will be described with reference to FIGS. FIG. 2 shows a known roll gap adjusting device for adjusting the gap between the hulling rolls 3,3. The hulling rolls 3 and 3 are a hulling roll 3 which rotates at a fixed position on the left side, and a right hulling roll 3 which is rotatably supported by a swing arm to be adjusted. It is composed of. When the roll gap adjusting motor 45 rotates normally or reversely, the roll gap adjusting means 24 composed of a gear group, an adjusting screw rod, a swing arm, etc., causes the hulling roll 3, The gap of 3 is adjusted to be opened and closed.

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. The control unit 25 is connected to a large number of actuator groups and a display device group via an output interface. Next, these connection relationships will be specifically described.

The control unit 25 includes a removal rate increase switch 26,
Removal rate lowering switch 27, cylindrical rotation high switch 28, cylindrical rotation low switch 29, automatic / manual switching
A switch group of a display changeover switch 31 for switching and displaying the rotation speed of the rotation selection cylinder 11 and the detected load current value is connected to the manual changeover switch 30 and the cylindrical rotation speed display device 50.

The control unit 25 also includes 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 sensor (RT) 34, and a power supply frequency sensor (ST). ) 35 sensor group, a grain sensor 37 for detecting the presence or absence of grains in the paddy hopper 2, and a roll deployment for detecting a deployment state in which the roll gaps of the paddy rolls 3, 3 are widely opened. A sensor 38, a shutter sensor 39 for detecting the fully closed state of the paddy supply control valve 39a, a rotation sensor 40 for detecting the number of rotations of the rotary selection cylinder 11, and a potentiometer for detecting the opening of the paddy supply control valve 39a. The opening sensor 41, the transistor / open collector type scattering sensor 42 for detecting the grain picking-up state of the rotary selection cylinder 11, and the operation / stop switch 43 are the signal conversion circuit 36.
Is connected to the respective control unit 25 via.

Further, a roll for adjusting the roll clearance between the main motor 44 for driving the huller sorting machine and the hulling 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. It is connected. Further, the control unit 25 includes 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, display unit for displaying the presence or absence of paddy in the paddy hopper 2, shutter open / close display unit, roll expansion display unit, LED display unit 52a for displaying the presence or absence of abnormality, whether automatic operation or manual operation LED display section 52b for displaying
LED display section 52c for displaying roll expansion, automatic / manual changeover switch 30, take-off rate lower switch 27, take-off rate upper switch 26, cylindrical rotation low switch 29 for lowering and adjusting the rotation speed of the rotary selection cylinder 11, Cylindrical rotation height switch 28 and display changeover switch 3 for increasing and adjusting the rotation speed of the rotation selection cylinder 11.
1 is provided for each.

Next, the control contents of the CPU 25 will be described. First, the automatic / manual changeover switch 30 is selected to the automatic side, and the run / stop switch 43 is operated to 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 gap setting control for setting the initial gap of the hulling rolls 3, 3 is performed, and the initial gap is set to a predetermined initial gap (for example, 1 mm).

Next, the control shifts to the shutter opening initial setting control for adjusting the initial opening of the paddy supply adjusting valve 39a to set the initial opening for opening the paddy supply adjusting valve 39a to a predetermined valve opening (for example, 10 mm). The paddy work is started. Next, the control shifts to the roll clearance control based on the load current value reference. Then, the detected load current value of the load current sensor 32 is sent to the control unit 25, the control reference value and the detected load current value are compared, and when the detected load current value is higher (or lower) than the control reference value, Is controlled so that the roll gap adjusting motor 45 is adjusted to the open side (or closed side) by a predetermined amount, the detected load current value is returned to the control reference value, and the roll gap is maintained at a predetermined gap. It is hulled at the removal rate. Further, if the detected load current value is within the range of the control reference value, the control command signal is not issued and the hulling operation is performed while maintaining the roll gap as it is. In place of the roll clearance control based on the load current value, the sloughing rice of the hulling rolls 3 and 3 is detected by a stripping rate sensor (not shown), and the detected stripping rate is the standard stripping rate. It may be configured to control the grain hull roll gap on the basis of the removal rate as compared with the rate.

Next, another control based on FIG. 6 will be described. A noise sensor 58 is provided on the paddy hull sorting machine to detect noise during work, and the detected noise input to the control unit 25 is compared with a reference noise value. If the detected noise is high, a noise reduction command is issued. Will be issued. Then, first, the paddy supply control valve 39a is adjusted to the decreasing side by the predetermined amount, and the paddy rolls 3, 3 are adjusted.
The roll clearance control is controlled by opening / closing according to the control reference value based on the paddy supply amount adjusted to the decreasing side and the set removal rate. If the detected noise is lower than the reference noise level, the display tube 4
9 shows that there is room to increase work efficiency,
Alternatively, the paddy supply control valve 39a is adjusted to the increasing side for hulling, so that the efficiency of the hulling work can be improved within the range of the reference noise value.

The reference noise value can be adjusted to a high or low value by a setting dial according to the working environment, and the supply amount can be reduced based on a noise reduction command.
The setting removal rate is adjusted to a lower side, the rotation speed of the main motor 44 is lowered, the rotation speeds of the hulling rolls 3 and 3 and the suction dust collector 5 are decreased. It may be controlled to adjust to the side and is not limited to this embodiment. Also, when switching from manual operation to automatic operation,
The detected noise during manual operation may be stored, the reference noise value during automatic operation may be switched to the detected noise value during manual operation and corrected, and the noise control may be performed automatically.

Further, the noise detected by the noise sensor 58 is displayed on the display tube 49. When the operator manually reduces the paddy supply control valve 39a to reduce the noise, the paddle rolls.
Uneven wear of the rollers 3 and 3 is prevented. Further, a vibration sensor 59 may be provided instead of the noise sensor 58 to perform the same control. When the vibration of the machine body increases, abnormal noise is generated from the hulling rolls 3 and 3 and uneven wear occurs, or troubles such as excessive wear of the hulling rolls 3 and 3 occur. In many cases, this kind of trouble can be avoided.

With the above configuration, when hulling work is performed in a residential area, it is possible to reduce noise and avoid nuisance of the surroundings, and hulling work can be performed with high noise. Since the work of can be avoided, the durability of the machine can be improved. Next, FIG. 7 will be described. Reference numeral 60 denotes a control box having the control unit 25 installed therein, which includes R, S, and T.
The three-phase commercial power source is connected to the main motor 44 via the socket 61, the changeover switch 62, and the breaker 63. The R, S, and T phases of the R, S, and T load current sensors 64a, 64b, and 64c detect the respective load current values, which are input to the control unit 25 and the control unit 15
Is connected to R, S, and T load ammeters 65a, 65b, and 65c via the output interface, and the detected load current value of each phase is displayed. The total load current value of is displayed on the total load ammeter 65d.

Next, the changeover switch 62 for changing over each phase of R, S and T will be described. The changeover switch 62 is provided with a changeover operation dial 62a that rotates about an axis, and the changeover operation dial 62a is pulled upward in the direction of arrow A against a spring, and then rotated in the clockwise direction. Each phase of R, S, T is sequentially switched,
When the switching operation dial 62a is returned by the spring, the switching of each phase is set.

During the operation of the hulling / sorting machine, variations in the R, S, and T phases may occur depending on the surrounding power supply conditions. Then, in such a case, the load current value of any one of the three phases is detected and the hull rolling is performed based on the load current value.
When the roll gap control of the rolls 3 and 3 is performed, the roll gap is adjusted narrowly or widely with respect to the reference roll gap, so that the paddy is removed at a predetermined removal rate. There may be a problem that it cannot be removed.

When three-phase variations occur in this way, the load current for controlling the roll gap is determined from the displayed contents of the R, S, T load ammeters 65a, 65b, 65c and the total load ammeter 65d. For any one of the phases whose values are being detected, the switching operation dial 62a of the changeover switch 62 is operated to switch to one in which the average load current value is being detected. Then, even when the load current value is detected from one of the three phases of R, S, and T to control the roll gap of the hulling rolls 3 and 3, an appropriate load current value is obtained. Can be detected and the control of the roll gap can be stabilized.

Next, FIG. 8 will be described. Control
The display panel 58 of the noise sensor 58 is provided on the panel 54.
a, display section 59a of vibration sensor 59, R, S, T load ammeters 65a, 65b, 65c and total load ammeter 65d
Is provided. Thus, during manual operation, while properly watching the detected load current value, the detected noise value, and the detected vibration value, the padding supply control valve 39a and the set removal rate of the removal rate setting switch (not shown) are adjusted appropriately. Hulling and sorting work is carried out while maintaining proper noise, vibration and load current values.

Further, during the automatic operation in which the automatic / manual switch 30 is switched to the automatic side, any one of the noise sensor 58, the vibration sensor 59 and the detection data of the total load ammeter 65d during the manual operation, Alternatively, the hulling / sorting operation is performed automatically by using a plurality of control reference values. When automatic control is performed with a plurality of data, the priority order among noise, vibration, and load current value can be set by operating the priority order setting means (not shown). The paddy supply control valve 39a and the like are controlled according to the set priority. In addition, the priority can be changed by the setting means.

By operating a reference value setting switch (not shown), the noise sensor 58 and the vibration sensor 5
9. The control reference value of the total load ammeter 65d can be corrected up and down, and the paddy supply adjusting valve 39a, the main motor 44, etc. are adjusted and controlled based on the corrected reference value.

[Brief description of drawings]

FIG. 1 is a cut side view and a cut back view of a hulling sorter.

FIG. 2 is a cutaway side view of a main part.

FIG. 3 is a block diagram.

FIG. 4 is a block diagram.

[Figure 5] Front view of the panel

FIG. 6 is a block diagram.

FIG. 7 is a perspective view

[Figure 8] Front view

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hulling part, 2 ... Hulling hopper, 3 ... Hulling roll, 4 ... Sliding rice air selection part, 5 ... Suction duster, 6 ... Dust cylinder, 7 ... Sliding rice receiving gutter, 8 ... mixed rice fryer, 9 ... mixed rice hopper, 10 ... sorting case, 11 ... rotary sorting cylinder, 12 ... drive roller, 13 ...
Supply spiral, 14 ... Supply gutter, 15 ... Brown rice spiral, 16 ...
Brown rice gutter, 17 ... Brown rice flowing down tube, 18 ... Brown rice flowing grain plate, 19 ...
Brown rice receiving trough, 20 ... Brown rice lifting machine, 21 ... Paddy receiving trough, 22 ... Paddy lifting machine, 23 ... Paddy reduction hopper, 24 ... Roll gap adjusting means, 25 ... Control part, 26 ... Depulling rate Switch, 27 ... Unloading rate lower switch, 28 ... Cylindrical rotation high switch, 29 ... Cylindrical rotation low switch, 30 ... Automatic / manual switch, 3
1 ... Display change switch, 32 ... Load current sensor, 33 ...
Power supply voltage sensor, 34 ... Power supply frequency sensor (RT),
35 ... Power frequency sensor (ST), 36 ... Signal conversion circuit, 37 ... Glen sensor, 38 ... Roll expansion sensor, 3
9 ... Shutter sensor, 39a ... Paddy supply control valve, 40 ... Rotation sensor, 41 ... Valve opening sensor, 42 ... Scattering sensor, 4
3 ... Run / stop switch, 44 ... Main motor, 45 ... Roll
Gap adjustment motor, 46 ... Shutter opening adjustment motor, 4
7 ... Cylindrical rotation adjusting motor, 48 ... Communication equipment, 49 ... Display tube, 50 ... Cylindrical rotation speed display device, 51 ... Current display LE
D, 52 ... LED display device, 53 ... Buzzer, 54 ... Control panel, 57 ... EEPROM, 58 ... Noise sensor, 59 ... Vibration sensor, 60 ... Control box,
61 ... Socket, 62 ... Changeover switch, 63 ... Blur
F, 64 ... Load current sensor, 65 ... Load ammeter

Claims (1)

[Claims] 1. A pair of hulling rolls 3, 3 for hulling the hulls supplied from the hull hopper 2, and a grain supply for adjusting the grain supply amount to the hulling rolls 3, 3. Amount adjusting means, a roll gap adjusting means for adjusting the roll gap of the hulling rolls 3, 3, and a main motor for driving the hulling rolls 3, 3 with a three-phase commercial power source.
Motor 44, a roll gap automatic control means for opening and closing the roll gap between the hulling rolls 3 and 3 on the basis of a load current value or a stripping rate, and noise or vibration of a hull sorting machine. And a paddle for adjusting and controlling the grain supply amount adjusting means or the roll gap adjusting means prior to the roll gap automatic controlling means based on the detection result of the work state detecting means. A control device for a hulling and sorting machine, which comprises automatic control means for sliding work.