JPS6361069B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation control device for a rice huller and sorter. Conventionally, in a hulling and sorting machine equipped with a hulling device and a swinging sorting device, at the end of hulling and sorting, a gate for blocking the flow of grain flowing through the machine is closed, and the finishing after sorting is This was done by setting the flow path switching valve, which determines whether the rice should be discharged or recirculated outside the machine, to the circulating state, and then operating the stop switch. Therefore,
Not only was there a risk of improper use of unrolling due to no paddy due to operational errors such as forgetting to operate, or a large amount of paddy being mixed into the finished rice, but there was also the problem that operations at the finishing stage were cumbersome and lacked ease. Ta. The present invention was made based on such a viewpoint, and its purpose is to automate the operation at the end stage of hulling sorting and eliminate operational errors and troublesome operations. The features of the present invention for achieving the above-mentioned objects include a roll door drive means for driving a roll door for opening and closing the paddy supply hopper outlet of the hulling device using a motor;
A sorted rice supply door drive means that opens and closes the sorted rice supply hopper outlet of the sorting device and a motor that drives the sorted rice supply door to open and close the sorted rice supply hopper outlet, and a finished rice outlet of the sorting board of the sorting device to the outside discharge side or inside the machine. A flow path switching valve driving means for switching and driving a flow path switching valve to be switched to the circulation side by a motor, and activation of the hulling and sorting machine on the condition that the roll sliding door is fully closed and the flow path switching valve is in an in-machine circulation state. a rice-to-be-sorted rice detection means for detecting an almost empty state of the rice-to-be-sorted rice supply hopper upon completion of hulling in the hulling device; The sorted rice supply gate drive circuit is controlled to close the sorted rice supply gate, and after the second and third set times following the first set time, the flow path switching valves are set to the in-machine circulation state, and the rice is rolled. An operation control device for a rice hulling sorter, comprising: a time limit stop means for controlling the flow path switching valve drive means and the roll door driving means so as to close the door, and stopping the operation of the rice huller sorting machine. . Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a hulling and sorting machine to which a control device according to the present invention is applied, where reference number A indicates a hulling device, and B
C indicates a lifting device, and C indicates a swinging sorting device. The hulling device A has a paddy supply hopper 1A and an evacuation chamber 2A communicating with the hopper, and a roll door 3A is interposed in the communication path between the two. The dechamber 2A has a pair of derollers 4A and 5A that are rotationally driven by a deroll drive motor MA1, and remove the paddy given from the hopper 1A via the sliding door 3A. Roll sliding door 3A is driven by motor MA2 to feed paddy hopper 1.
It opens and closes the outlet of A. When fully closed, it contacts limit switch 6A, and when fully opened, it contacts limit switch 7A. In addition, a paddy detection sensor 8A for detecting the presence or absence of paddy is provided near the exit of the paddy supply hopper 1A. The lifting device B supplies the rice to be sorted to the swing sorting device C , and is driven by the lifting device driving motor MB. The oscillating sorting device C includes a rice to be sorted supply hopper 1C that accumulates rice to be sorted, a rice to be sorted supply door 2C that opens and closes the outlet of the hopper, and a rice to be sorted supply door 2C that supplies rice to the hopper 1 through the door.
It has a sorting board 3C for shaking and sorting the rice to be sorted given from C, and a part for taking out the sorted grains 4C.
The rice supply hopper 1C to be sorted moves up and down according to the stored amount, and when the stored amount is almost empty, it rises and comes into contact with the empty detection limit switch 5C, and when the stored amount is almost full, it moves down. Full detection limit switch 6C
comes into contact with. The rice supply door 2C to be sorted is a motor MC.
2 opens and closes the outlet of the rice supply hopper 1C to be sorted, and when it is fully open, it contacts the limit switch 7C, and when it is fully closed, it contacts the limit switch 8C.
comes into contact with. The sorting board 3C is swung in the horizontal, vertical, and vertical directions in the drawing by the motor MC1 via a swinging mechanism (not shown). The sorting board 3C is provided with an optical sensor (not shown) at a suitable location to detect the amount of rice contained in the grains to be discharged as brown rice. The sorted grain removal section 4C has a paddy flow path 9C, a mixed rice flow path 10C, and a brown rice flow path 11C. Brown rice flow path 11C is flow path switching valve 1
It can communicate with the mixed rice flow path 10C by switching 2C, and the switching valve 12C is the recirculation limit switch 13.
By coming into contact with C, the two are in communication, and the sorted brown rice is recirculated through the mixed rice flow path 10C, and on the other hand,
When the selector valve comes into contact with the discharge limit switch 14C, the sorted brown rice is discharged to the outside of the machine. The switching operation of the flow path switching valve 12C is performed by the motor MC3. In addition, the broken line shown in FIG. 1 shows the flow path of grains. FIGS. 2A and 2B show an embodiment of the operation control device according to the present invention. In the figure, 1 is the roll door drive motor circuit;
Reference numeral 2 denotes a motor circuit for driving the rice supply door to be sorted, 3 a motor circuit for driving a flow path switching valve, 4 a supply paddy detection circuit in the paddy supply hopper 1A of the hulling device A , and 5 driving the roll door drive motor MA2. 6 is a sorted rice supply gate drive circuit that drives the sorted rice supply gate drive motor MC2, and 7 is a control circuit for closing each gate and switching the flow path switching valve upon completion of hulling. 8 is a flow path switching valve drive motor MC3, which is a time-limited circuit for switching to the circulation state and stopping the operation of the rice huller sorting machine itself;
Reference numeral 9 is a start/stop circuit for starting/stopping the huller and sorting machine. The supplied paddy detection circuit 4 has a relay X1, and drives the relay X1 when the paddy detection sensor 8A is turned on, the stop switch SP-2 is turned on, and the contact t4-1 of the timer T4 is turned on. The paddy detection sensor 8A is turned on when a certain amount of paddy exists in the paddy supply hopper 1A. The stop switch SP-2 is related to the stop switch SP-1 of the start/stop circuit 9, and is connected to the stop switch SP-1 of the start/stop circuit 9.
If 1 is kept on, it becomes off state and SP-1
SP-2 is in the on state as long as is in the off state.
The timer T4 is provided in the start/stop circuit 9, which is connected to the roll start motor MA1, the lifting device drive motor MB, and the swing sorting board drive motor MC1.
The contact is turned on after a predetermined period of time has elapsed after activation. The roll sliding door drive circuit 5 includes a relay X2 for opening the rolling sliding door 3A, and a relay X3 for closing the rolling sliding door 3A. Opening action relay X2
The A contact of the full amount detection limit switch 6C of the rice supply hopper 1C to be sorted is turned on, the normally open contact x3-2 of the relay X1 is turned on, and the open stop limit switch 6 is turned on.
Drives when the b contact of A is turned on. The full quantity detection limit switch 6C opens its a contact and closes its b contact when the sorted rice supply hopper 1C comes into contact with the switch 6C when the accumulated quantity is full, and when the rice is not full, the a contact is closed and the b contact is closed. is open. The open/stop limit switch 6A closes the a contact and opens the b contact when the roll sliding door 3A comes into contact with the roll sliding door 3A, and vice versa when the roll sliding door 3A comes into contact with the open/stop limit switch 6A. The contact of the roll sliding door 3A with the switch 6A means that the rolling sliding door is fully opened, and when the a contact is turned on, the open indicator lamp PL1 lights up. Closing action relay X3
is when the b contact of full detection limit switch 6C is turned on, the normally closed contact x1-2 of relay X1 or the normally open contact 11-1 of relay X11 is turned on, and the normally closed contact x2-2 of open operation relay X2 is turned on. , it is driven when the b contact of the close stop limit switch 7A is turned on. Relay X11 is a relay provided in start/stop circuit 9, and is driven when stop switch SP-1 is pressed.
Close stop limit switch 7A is for roll sliding door 3A
When they come into contact, the a contact is closed and the b contact is opened, and when they separate, the opposite occurs. Closing of the a contact is a roll door 3A
This means that the roll differential door close confirmation relay X4 and the close indicator lamp PL2, which are parallel to X3, are driven. As will be described later, the relay X4 is responsible for one of the conditions for starting the huller sorting machine by the starting switch SR of the starting/stopping circuit 9. The sorted rice supply gate drive circuit 6 includes a relay X5 that opens the rice supply gate 2C to be sorted, and a relay X6 that closes the rice supply gate 2C. The opening operation relay X5 turns on the a contact of the empty detection limit switch 5C of the rice supply hopper 1C to be sorted, turns on the second contact t4-2 of the timer T4, and turns on the normally closed contact x6-2 of the closing operation relay X6. It is driven by turning on and turning on the b contact of the open stop limit switch 7C.
The empty detection limit switch 5C has its b contact in the timer circuit 7, and is connected to the rice supply hopper 1C to be sorted.
When the storage capacity is almost empty, contact with the switch 5C opens the a contact and closes the b contact, otherwise the situation is reversed. The function of the open/stop limit switch 7C is the same as the open/stop limit switch 6A in the roll door drive circuit 5 described above. The closing operation relay X6 is connected to the contact t1-1 of the timer T1.
on or the second normally open contact of relay X11 x11-
2 on and normally closed contact x5- of open operation relay
2 is turned on, and the b contact of the close stop limit switch 8C is turned on. A timer T1 having a contact point t1-1 is a timer for confirming that the rice supply hopper to be sorted is empty in the time limit circuit 7, and when the amount of steam in the rice supply hopper to be sorted 1C becomes empty due to the completion of hulling, the empty detection limit switch 5C is activated. The contact is closed after a predetermined period of time has elapsed from the time of contact. Close stop limit switch 8
The function of C is the same as the closing stop limit switch 7A of the roll door drive circuit 5 described above. The contact of the close confirmation relay X7 of the rice supply door to be sorted 2C is present in the start/stop circuit 9 as a normally closed contact x7. The timer circuit 7 includes an empty check timer T1 for the rice supply hopper 1C to be sorted, a circulation state switching timer T2 for switching the flow path switching valve 12C to a circulating state, and a stop timer T3 for stopping the operation of the hulling and sorting machine.
The empty check timer T1 is driven by turning on the b contact of the empty detection limit switch 5C in the rice supply hopper 1C to be sorted and turning on the normally closed contact x8-3 of the relay X8. Note that the contact t1-2 is for self-holding of the timer T1. Relay X8 is present in flow path switching drive circuit 8, and flow path switching valve 12C is in a circulating state (brown rice flow path 11C is in communication with mixed rice flow path 10C).
is driven by. When the huller sorting machine is started, relay X8 is in the driving state as described later, so
Although the b contact of the empty detection limit switch 5C is on, the timer T1 is not driven. The circulation state switching timer T2 and the stop timer T3 are the third timer of the timer T1.
It is driven when the contacts t1-3 are turned on, and each contact is closed after each set time elapses. Timer T2 is timer T
After the contact 1 is turned on, the timer T3 is set to the time when the rice to be sorted on the sorting board 3C can be separated and sorted, and the timer T3 is set to the time until all the rice to be sorted that cannot be sorted on the sorting board disappears from the sorting board 3C. be done. The flow path switching valve drive circuit 8 includes a circulation state switching relay X9 that switches the flow path switching valve 12C to the circulation state, and a discharge state switching relay X10 that switches the flow path switching valve 12C to the discharge state. The circulation state switching relay X9 has a contact k- which is driven by the output of an optical sensor that detects the amount of paddy mixed in the finished rice by swing sorting.
1 or the contact t3 of the timer T2 is turned on or the normally open contact x11-3 of the relay X11 is turned on, and the normally closed contact x10-2 of the discharge state switching relay X10
on and circulating state limit switch 13cb
Drives when the contact is on. The contact k-1 is in an on state except when the amount of mixed rice in the finished rice is below the allowable value. The circulation state limit switch 13C closes the a contact and opens the b contact when the flow path switching valve 12C comes into contact with the flow path switching valve 12C, and exhibits the opposite effect when the switch leaves. The contact of relay X9 is turned on by the flow path switching valve 12C.
This means that the flow path 10C and the mixed rice flow path 10C are in communication with each other, and as a result, the circulation state confirmation relay X8 is driven and the display lamp PL5 is lit. Relay X
8 constitutes the starting conditions for the rice hulling and sorting machine. The discharge state switching relay X10 turns on the contact k-2 driven by the output of the optical sensor for detecting the amount of paddy mixed in the finished rice, and turns on the normally closed contact x9-2 of the circulation state switching relay X9. It is driven by turning on the b contact of the discharge state limit switch 14C. Contact k-
2 is associated with the contact k-1, and when k-1 is off, k
-2 is on, k-1 is on and k-2 is off. The discharge state limit switch 14C closes the a contact and opens the b contact when the flow path switching valve 12C comes into contact with the discharge state limit switch 14C, and assumes the opposite state when the switch is separated. The start/stop circuit 9 has a start switch SR and a stop switch SP-1. To start the huller sorting machine using the start switch SR, normally open contact x4 of relay
-1 is on (the roll sliding door 3A is in the closed state) and the normally open contact x8-1 of the relay X8 is on (the flow path switching valve 12C is in the circulating state). When this condition is satisfied, relays RA, RB, RC, relay X12, and timer T4 are activated. Relay RA drives roll removing drive motor MA1, relay RB drives lifting device drive motor MB, and relay RC drives rocking sorting device drive motor MC1. Relay X1
2 is a self-holding relay for the start switch SR, and time T4 is a normal operation confirmation timer that closes its contact after a predetermined time has elapsed after starting, as described above. The stop switch SP-1 has a relay X11 that is driven by its operation, and when the relay X11 is driven, the roll sliding door 3A is closed and the rice supplying sliding door 2 to be sorted is closed.
C is closed, the flow path switching valve 12C is switched to the circulation state, and the operation of the hulling and sorting machine itself is stopped. The operation of the operation control device configured as above will be explained below. When the hulling and sorting machine is started, the roll door 3A is in a closed state, the flow path switching valve 12C is in a circulation state, the rice to be sorted supply hopper 1C is in an empty state, and the rice to be sorted supply door 2C is in a closed state. These states are set when the rice huller is stopped, as will be described later. Roll sliding door 3A
is in the closed state means that the close stop limit switch 7
means that it is in contact with A, therefore, circuit 5
The 7A a contact is on, and the close confirmation relay
4 and the close indicator lamp PL2 are in the driving state. At this time, b of the open/stop limit switch 6A
The contact is in the on state, but the relay X of the detection circuit 4
1 is in a non-driven state, its contact x1-1 is in an OFF state, and the opening relay X2 is not driven. The fact that the flow path switching valve 12C is in the circulating state means that the switching valve 12C is in contact with the circulating state limit switch 13C, and therefore,
The a contact of 13C of the circuit 8 is on, and the circulation state confirmation relay X8 and its display lamp PL5 are in a driven state via the contact k-1. At this time, the b contact of the discharge state limit switch 14C is in the on state, but since the contact k-2 is off, the discharge state switching relay X10 is not driven. The empty state of the rice supply hopper 1C to be sorted means that it is in contact with the empty detection limit switch 5C, the a contact of 5C of circuit 6 is in the OFF state, and the contact b of 5C of circuit 7 is in the OFF state.
The contacts are in the on state. In this way, even if the b contact of the empty detection limit switch 5C is in the on state in the circuit 7, the empty check timer T1 will not be driven because the circulation state limit switch X8 is in the driven state as described above. The closed state of the rice supply door 2C to be sorted means that the door 2C is in contact with the close limit switch 8C,
The a contact of 8C of circuit 6 is in the on state. However, timer T1 of circuit 7 and relay X1 of circuit 9
1 are both in the non-driven state, contacts T1-1 and x11-2 are off, and X7 and PL4 are not driven. Therefore, in the start/stop circuit 9, before starting,
The normally open contacts x4-1 and x8-1 are in the on state, the normally closed contacts x4-2 and x8-2 are in the off state, and the other contacts are in the illustrated states. Under such conditions, if start switch SR is pressed, roll drive motor MA1, lifting device drive motor MB,
The sorting device drive motor MC1 starts, and at the same time, the normal operation confirmation timer T4 starts and closes its contact after a set time elapses. When the contact of T4 is turned on, t4-1 of circuit 4 and t4-2 of circuit 6 are closed. In circuit 4, at the closure of t4-1,
If there is paddy in the paddy supply hopper 1A, the sensor 8A is turned on and the relay X1 is driven. On the other hand, in circuit 6, even if t4-2 is closed, the a contact of the empty detection limit switch 5C is off, so the opening relay X5 is not driven and the rice supply door to be sorted 2C remains fully closed. It is. By driving relay X1 of circuit 4, normally open contact x1-1 of circuit 5 is turned on and normally closed contact x1-2 is turned off. Therefore, in the circuit 5, the opening operation relay X2 starts driving,
The roll sliding door drive motor MA2 of the circuit 1 is driven to move the rolling sliding door 3A in the opening direction. As a result, the limit switch 7 stops the roll sliding door 3A from closing.
When 7A leaves A, it turns off its A contact b
Turn on the contact. When the roll sliding door 3A is fully opened and comes into contact with the opening stop limit switch 6A,
Contact a of 6A turns on and contact b turns off, and at the same time as the roll door drive motor MA2 stops, the open indicator lamp PL1 lights up. When the roll door 3A is opened, the paddy in the paddy supply hopper 1A is given to the unrolled rice 4A, 5A, and the dropped rice is sent to the sorted rice supply hopper 1C of the sorting device C via the lifting device B. When the rice to be sorted supply hopper 1C is filled with the accumulated amount, the hopper 1C is lowered and separated from the empty detection limit switch 5C. As a result, a of 5C of circuit 6
The contact is turned on, and the b contact of 5C of the circuit 7 is turned off. In the sorted rice supply gate drive circuit 6, when the a contact of 5C is turned on, the open operation relay
is driven to move the sliding door 2C in the opening direction. As a result, when the rice supply gate 2C to be sorted leaves the closing/stopping limit switch 8C, the a contact of 8C turns off and the b
The contact is turned on. When the sliding door 2C becomes fully open and comes into contact with the open stop limit switch 7C, the a contact of 7C of the circuit 6 turns on and the b contact turns on, and the sliding door drive motor MC2 stops, and at the same time the open indicator lamp PL3 lights up. do. When the sliding door 2C is opened, the rice to be sorted is supplied from the hopper 1C to the sorting board 3C, sorted and separated, and then discharged to the take-out section 4C. At the beginning of hulling and sorting, the sorting work is unstable, so it is common for more paddy than the allowable amount to be mixed into the finished rice, so the output of the optical sensor for detecting paddy in the finished rice is not activated. As before, the on state of contact k-1 and the off state of contact k-2 are maintained, and the finished rice is flowed into the mixed rice flow path 10C. When the sorting operation is stabilized and the amount of paddy mixed in the finished rice falls below the allowable level, the contact k-1 is turned off and the contact k-2 is turned on. Contact point k
-2 is turned on, the discharge state switching relay X of circuit 8
10 is driven, thereby driving the flow path switching valve drive motor MC3 of the circuit 3, and moving the switching valve 12C to the circulation side. When the flow path switching valve 12C moves away from the circulation state limit switch 13C,
The contact 13C is in the off state and the b contact is in the on state.
When the switching valve 12C is completely switched and comes into contact with the discharge state limit switch 14C, the contact of 14C is turned on and the b contact is turned off, the motor MC3 is stopped, and the discharge state display lamp PL6 is lit. By switching the flow paths in this manner, finished rice is discharged outside the machine. In addition, the mixed rice is used as rice to be sorted, and the paddy is used as unhusked rice, which is circulated in the machine. In addition, when the storage capacity of the rice supply hopper 1C to be sorted is full, the hopper 1C comes into contact with the full quantity detection limit switch 6C, so the b contact of 6C of the circuit 5 is turned on and the closed operation relay X3 is driven. Sorted rice supply door 2C will be closed. As the hulling and sorting work approaches the end, the rice to be sorted supply hopper 1C of the sorting device C becomes empty. Therefore, the hopper 1C rises and comes into contact with the empty detection limit switch 5C. As a result, the b contact of 5C of the time limit circuit 7 is turned on, and the empty check timer T1 is driven. Note that the relay X8 of the circuit 8 is in a non-driven state since the flow path switching valve 12C is in the discharge state, and therefore its contact x8-3 remains in the closed state. Timer T1 closes the contacts after the set time. As a result, in the rice to be sorted supply gate driving circuit b, the closing operation relay X6 is driven by turning on the contact t1-1. Due to the operation of
C moves in the closing direction. When the sliding door 2C is fully closed, the motor stops and the closing indicator lamp and closing confirmation relay X7 are driven. The timer T1 also drives the circulation state switching timer T2 and the stop timer T3 by turning on the contact point t1-3. The timer T2 closes the contact t2 of the flow path switching valve drive circuit and drives the circulation state switching relay X9 after a set time period has elapsed during which the rice to be sorted on the sorting board 3C can be separated and sorted.
The flow path switching valve drive motor MC of circuit 3 is activated by the operation of X9.
3 is activated, and when the switching valve 12C is completely switched to the circulation state, the motor is stopped and the circulation state display lamp PL5 and confirmation relay X8 are driven. The timer T3 closes the contact t3 of the start/stop circuit 9 and drives the stop relay X11 after a set time corresponding to all the grains on the sorting board 3C disappearing after the switching valve 12C is switched to the circulating state. . As a result,
The closing operation relay X3 of the circuit 5 operates, and the roll door drive motor MA2 of the circuit 1 is driven to move the roll door 3A in the closing direction. When the roll sliding door 3A is fully closed, the a contact of the closing limit switch 7A is turned on.
The b contact is turned off, the motor MA2 stops, the close indicator lamp PL2 lights up, and the close confirmation relay X4 is activated. As a result of the above operation, in the start/stop circuit 9,
Normally closed contacts x11-5, x4-2, x7 and x8-
2 is turned off, the operation of the huller sorting machine itself, that is, the roll drive motor MA1, the lifting device drive motor
The driving of the MB and sorting device drive motor MC1 is stopped. The rice hulling and sorting machine can also be stopped by operating the stop switch SP-1 of the start/stop circuit 9. That is, stop switch SP-
1 is pressed, the stop relay X11 is activated and drives each circuit as follows. In the roll sliding door drive circuit 5, when the contact x11-1 closes, the closing operation relay X3 is driven, and the rolling sliding door 3A is closed. In the sorted rice supply gate driving circuit 6, closing of the contact x11-2 drives the closing relay X6, and the gate 2C is closed. Flow path switching valve drive circuit 8
When the contact x11-3 is closed, the circulation state switching relay X9 is operated, and the switching valve 12C is switched to the circulation state. As explained above, according to the present invention, all the operations at the end of hulling are automated, so it is possible to eliminate operational errors and troublesome operations at the end.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a rice huller and sorter to which an operation control device according to the present invention is applied, and FIGS. 2A and 2B show an embodiment of the operation control device according to the present invention. DESCRIPTION OF SYMBOLS 1...Roll differential drive motor circuit, 2...Rice to be sorted supply differential door drive motor circuit, 3...Flow path switching valve drive motor circuit, 4...Supplied paddy detection circuit, 5...
Roll divider drive circuit, 6...Rice to be sorted supply divider drive circuit, 7...Time limit circuit, 8...Flow path switching valve drive circuit, 9...Start/stop circuit.

Claims (1)

[Claims] 1. A roll door drive means that uses a motor to open and close a roll door that opens and closes the paddy supply hopper outlet of the hulling device, and a motor that opens and closes the sorted rice supply door that opens and closes the sorted rice supply hopper outlet of the sorting device. a rice to be sorted supply gate driving means to be driven; a passage switching valve driving means for switching and driving a passage switching valve using a motor to switch the finished rice outlet of the sorting board of the sorting device to an outside discharge side or an inside circulation side; A starting means for starting the hulling and sorting machine on the condition that the roll door is fully closed and the flow path switching valve is in the in-machine circulation state, and a hopper for supplying rice to be sorted when the hulling device finishes hulling. A rice to be sorted detection means for detecting an almost empty state, and a rice to be sorted supply door driving circuit controlled to close the rice to be sorted supply door after a first set time in accordance with the empty state detected by the detection means. and the flow path switching valve driving means and the roll door driving means are configured to set the flow path switching valve to an in-machine circulation state and close the roll door after a second and third set time following the first set time. 1. An operation control device for a hulling and sorting machine, comprising: a time limit stop means for controlling and stopping the operation of the hulling and sorting machine.