JPH0115794B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic operation control device for a grain drying device.

More specifically, the automatic operation control device for the grain drying device targeted in the present invention is:
During the drying process in which the grains loaded into the grain dryer are dried to a predetermined moisture level by the operation of the grain dryer, there is a predetermined operation stop state in which the operation of the grain dryer is stopped. This is an automatic operation control device that controls the operation so that the operation and suspension are repeated at intervals of .

Conventionally, the above-mentioned automatic operation control device for a grain drying device was controlled by a program and a timer built into the control unit, and the time period and time period during which the grain drying device was operated was controlled. It is not possible to freely select and change the period of time during which the operation is stopped, and in order to repeat the operation stoppage repeatedly, it is recommended to use a timer known as an all-data timer. However, it is extremely troublesome to change the on/off time period that is set for the grain drying device, and another problem arises in that it is troublesome to change the on/off time period for the operation of the grain drying device. However, there is a problem in that it is difficult to control the drying process so that the operation is stopped and the drying process is completed when the time is up.

The present invention solves these problems and allows the grain dryer to be turned on and off by a simple operation, and to be stopped after a predetermined time has elapsed. It is an object of the present invention to provide a new means for easily controlling the process so that the drying process ends at the end of the drying process.

In the present invention, as a means to achieve this objective, a predetermined number of setting switches that can be individually turned on and off are arranged in a predetermined arrangement order in parallel on an operation panel provided on the outer surface of the aircraft. The setting switches are arranged in such a manner that time periods of a certain unit time length to be set as desired are assigned to the setting switches so as to be consecutive in accordance with the above arrangement order, and each of the setting switches is connected to the reference pulse generation circuit. In addition to being connected to the surrounding circuits through respective discrimination circuits,
The frequency dividing circuit is connected to a relay provided in the circuit of the motor of the power source of the grain drying device, and the frequency dividing circuit is configured to integrate the number of pulses transmitted from the reference pulse generating circuit for the above-mentioned fixed unit time length. The symbol signal output from the frequency dividing circuit is configured to be converted every time the symbol signal is a multiple of the number corresponding to The present invention proposes an automatic operation control device for a grain drying device, which is configured to turn on when it is determined that the symbol corresponds to a band.

Next, embodiments will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 indicates an operation panel provided on the outer surface of the body of the grain drying apparatus, and reference numerals a, . . . indicate setting switches provided in parallel with the operation panel 1.

In this example, the number of setting switches a...
There are six setting switches a-1 to a-6, and each setting switch a... is arranged in a line from side to side.

These setting switches a... have a time period set to 4 hours as a constant unit time length, and the leftmost setting switch a-1 has a time period of 0 to 4 o'clock, 2 o'clock from the left.
The third setting switch a-2 is from 4 o'clock to 8 o'clock, and the third setting switch from the left a-3 is from 8 o'clock.
The setting switches a, etc. are assigned in successive states according to the arrangement order so that the time becomes 12 o'clock.

Each setting switch a is connected via a discrimination circuit 4 to a frequency dividing circuit 3 which is connected to a reference pulse generating circuit 2 which generates pulses at regular intervals. In this example, the reference pulse generation circuit 2 is an oscillation circuit that sends out a pulse every minute. Further, the frequency dividing circuit 3 is a counter that continuously sends a certain symbol signal to each discrimination circuit 4 while integrating the number of pulses transmitted from the reference pulse generation circuit 2. The symbol signals to be output are exchanged sequentially every time the number of integrated pulses becomes a multiple of the number corresponding to 4 hours, which is the unit time length of the time period assigned to the setting switch a. It is structured as follows. In other words, the number of pulses sent every minute is
Until you count 240 pieces, which is the number corresponding to 4 hours, which is the time length of the time zone assigned to each setting switch It is configured to convert into a symbol signal of 480, output that symbol signal successively until it counts 480, and convert it to a symbol signal by counting 480.

Then, each of the discrimination circuits 4 connected between each of the setting switches a and the frequency dividing circuit 3 determines whether or not the symbol corresponds to the time zone assigned to each of the setting switches a to which they are connected. It is configured so that it turns on when it determines that it is a corresponding symbol. In other words, the discrimination circuit 4 connected to the leftmost setting switch a-1 turns on only when the symbol signal output from the frequency dividing circuit 3 is . The discrimination circuit 4 connected to the third setting switch a-3 is turned on only when the above-mentioned symbol signal is .
The discrimination circuit 4 connected to is turned on only when the above-mentioned symbol signal is .
It is configured so that it is turned on when it is a symbol signal corresponding to the arrangement order, and the sent output signal is sent to the connected setting switch a.

The above-mentioned setting switches a... are further connected to power relays 5 provided in the circuit 6 of the motor which is the power source for operating the grain drying device, so that the output signals are When the output signal flows to the power relay 5, the power relay 5 is turned on and the grain drying device is put into operation, and when the output signal does not flow to the power relay 5, the power relay 5 is turned off. The operation of the grain drying device is stopped.

Furthermore, these setting switches a... are constructed as independent switches that can individually turn on and off the connection to the frequency dividing circuit 3 or the power relay 5 by manual operation. The structure for causing these setting switches a to perform the above-mentioned on/off operations is arbitrary, and in the illustrated embodiment, an alternate operation push button is used in which the state of the switch changes alternately between on and off each time it is pressed. An indicator lamp that is configured as a type switch and lights up when turned on is built into the case of the push button.

Further, a switch circuit 7 is connected to the above-mentioned frequency dividing circuit 3 to switch and change the reference number of pulses for converting the output symbol output, and the switching operation of the switch circuit 7 is controlled by the above-mentioned operation panel 1. This is done by vertically rotating a changeover switch b installed on the operation panel 1 adjacent to the setting switches a. That is, the changeover switch b
By rotating the knob 70 upward so that the knob 70 is positioned upward, the reference pulse number of the frequency dividing circuit 3 becomes as described above.
240, and by rotating the knob 70 of the changeover switch b downward to the lower position, the reference pulse number of the frequency dividing circuit 3 becomes 120, which is half of the above-mentioned 240.

When the number of reference pulses to be counted is halved in this way, the time required for the output symbol signal to be converted is halved to 2 hours, and each discrimination circuit 4 that discriminates this time is halved to 2 hours. This means that the time slots assigned to each setting switch a have been switched to half the time. Therefore, by making it possible to change the reference pulse number set in this frequency dividing circuit 3 as desired by the changeover switch circuit 7, each setting switch a...
The time period of a fixed unit time length allocated to the system can be changed to a desired time length.

In addition, the frequency dividing circuit 3 counts the number of reference pulses, that is, the number of times the symbol signal is converted, becomes a predetermined number of times (in the embodiment, six times, which is the number of switches a in the above settings). As a result, the connection with the reference pulse generation circuit 2 is turned off and the operation is stopped, resulting in a time-up.
It is designed to return to the initial 0 state by operating a reset switch. The reset switch is operated by moving the changeover switch b so that the knob 70 of the changeover switch b is located in the middle as shown in FIG.

Further, in the illustrated embodiment, numerals 9, . . . indicate lamps that are arranged to turn on and off sequentially as time elapses to indicate the passage of time.

The embodiment device constructed in this manner operates as follows.

If all of the parallel setting switches a... are turned on and the appropriate start switch provided in the power supply circuit is turned on, the operation of the grain drying device will change over time to the first one. Although the control by the setting switch a-1 is sequentially switched to the control by the second setting switch a-2, the operation is continued. In addition, the parallel setting switch a...
If a suitable one of them is turned off, as time passes, when the time period comes to control the operation of the grain drying device by the setting switch a that has been turned off, the discrimination circuit 4 connected to the setting switch a However, when the symbol signal output from the frequency divider circuit 3 is determined and the symbol signal is turned on, the output signal does not flow from the turned off setting switch a to the power relay 5, so the frequency divider circuit Until the symbol signal output from 3 is converted to the next symbol signal and the control of the operation of the grain dryer is transferred to the control by the next setting switch a, the operation of the grain dryer remains unchanged. Operation will continue to be stopped. Next, as time elapses in that state, the symbol signal output from the frequency dividing circuit 3 is converted to the next symbol signal, and the operation is started again under the control of the next setting switch a, and the switch is turned off. Operation will now be suspended only during the time period assigned to setting switch a.

Then, when the time period assigned to the last setting switch a in the arrangement order among the setting switches a that have been turned on has elapsed, the symbol signal output from the frequency dividing circuit 3 is converted to the next symbol signal. However, since there is no setting switch a that is controlled by the converted symbol signal, a time-up occurs and the operation continues in a halted state. In other words, the drying work has been completed.

As explained above, the automatic operation control device for the grain drying apparatus according to the present invention has a predetermined number of setting switches arranged in a predetermined order on the operation panel provided on the outer surface of the machine, each of which can be turned on and off individually. The setting switches are arranged in parallel, and time periods of a certain unit time length to be set as desired are assigned to these setting switches so as to be consecutive in sequence according to the arrangement order, and each of these setting switches is connected to a reference pulse generation circuit. The frequency dividing circuits are connected to the frequency dividing circuits through respective discrimination circuits, and are connected to the relays provided in the circuit of the motor of the power source of the grain drying device, and the frequency dividing circuits are connected to The circuit is configured such that the symbol signal to be outputted is converted every time the number of accumulated pulses that are received becomes a multiple of the number corresponding to the above-described fixed unit time length, and each of the discrimination circuits is configured to convert the symbol signal output from the frequency dividing circuit Since it is configured to turn on when it is determined that the coming symbol signal corresponds to the respective time period assigned to each setting switch, it is possible to determine the time during which the operation of the grain drying equipment is stopped. You can freely set the time zone by selecting the setting switch to turn off from the parallel setting switches a..., and the control pattern for the combination of the operating time period and the rest time period can be set in parallel. Desired settings can be made by combining the on/off states of the switches a.
The operation for this purpose is to turn on and off the parallel setting switch a, so the time period for turning on and off the grain drying device can be freely changed with a simple operation. become.

In addition, in the above control, the frequency dividing circuit 3 converts the symbol output by counting multiples of the reference pulse number, so that the control by each setting switch of the parallel setting switches a is sequentially controlled by the next setting switch a. Since this is done by setting the control in advance, the drying operation will be stopped and the drying operation will be stopped at the time of the operation operation set by the setting switch a... which is selected and turned on as desired, or when the time is up. This allows you to control the termination of
It is easy to control the operation to stop when the set time has expired.

[Brief explanation of drawings]

FIG. 1 is a front view of a device according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of an electric circuit. Explanation of drawing symbols, 1... Operation panel, a... Setting switch, b... Changeover switch, 2... Reference pulse generation circuit, 3... Frequency dividing circuit, 4... Discrimination circuit, 5... Power relay, 6... Motor circuit, 7... Switch circuit, 70... Selector switch knob, 9... Lamp.

Claims (1)

[Claims] 1 Turn on and off separately on the operation panel provided on the outside of the aircraft.
A predetermined number of setting switches that can be turned off are arranged in parallel in a predetermined arrangement order, and a time period of a certain unit time length to be set as desired is set on the setting switches according to the arrangement order. The setting switches are assigned in sequence and are connected to a frequency dividing circuit connected to the reference pulse generation circuit via a discrimination circuit, and a relay installed in the circuit of the motor that is the power source of the grain drying device. connect to
Further, the frequency dividing circuit is configured to convert the symbol signal output every time the number of integrated pulses transmitted from the reference pulse generation circuit becomes a multiple of the number corresponding to the above-mentioned fixed unit time length. Each of the discrimination circuits is configured to turn on when it is determined that the symbol signal output from the frequency dividing circuit is a symbol corresponding to each time zone assigned to each setting switch. An automatic operation control device for a grain drying device characterized by: