JPS5953598B2 - Raw material discharge control device for vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a raw material discharge control device for a vending machine having a structure in which raw materials such as sugar, powdered coffee, etc. are suitably discharged and cooked into a predetermined beverage before being sold. be.

By the way, in the case of such a vending machine, for example, if you press the selection button for coffee with milk or sugar, and then operate the sugar increase or decrease switch, the amount of sugar will be lower than if you only press the above selection button. The amount is increased or decreased and shipped, depending on the preference of the purchaser.

However, in this type of vending machine, once the increase or decrease switch is operated, even if the operation is incorrect, it cannot be corrected, and instead, the product is sold against the buyer's wishes. It had some drawbacks.

The present invention was devised in view of the shortcomings of conventional vending machines, and is intended to give priority to the switch operated last to carry out the discharge of raw materials.

Hereinafter, one embodiment will be described in detail with reference to the accompanying drawings.

The attached drawings show the raw material delivery control circuit of the vending machine according to the present invention, and in this embodiment, only the sugar delivery system is shown.

In the figure, 1 is a product selection switch for coffee with milk and sugar, which is a typical drinking water of this type of vending machine, and 2 and 3 are sugar increase and decrease switches.

4 is a one-shot multivibrator that outputs an opening operation signal S for a predetermined time when the product selection switch 1 is turned on.

Reference numeral 5 designates an oscillator circuit that outputs a tarock signal C with a constant period, and only when the operation signal S is input to the next stage gate circuit G1, the clock signal C is sent to the metering, increasing and decreasing counter in the timer circuit 6. 7.8 and 9.

10 and 11 are RS flip-flops (hereinafter simply referred to as FF), and are connected to the increase and decrease switches 2 and 3, respectively.
turns ON and a selection signal is input from the S input terminal, resulting in a set state, and each outputs a signal from the Q output terminal, and also distributes such a signal to the R input terminal of the other party to control the FF of the other party. It is designed to reset 1-.

In short, it memorizes the operations of switches 2 and 3 while clearing the memory of the other.

Note that the metering, increasing, and decreasing counters of the timer circuit 6 each count the clock signal C, and when a predetermined number of counts have been reached, the time-up signals Ul, U2 . Whether U3 is output or not, the size of the counted quantity is related to increase counter > fixed amount counter > decrease counter.

12 is a process for appropriately processing the signals obtained from these counters 7, 8 and 9, the one-shot multivibrator 4, and each FF 10 and 11, and operating the drive circuit 14 of the sugar unloading machine 13 and the correction alarm device 15. The circuit is composed of gate circuits G2 to G7.

The above-mentioned correction alarm may be of a type that displays text or a type that emits a sound, and in short, it notifies the purchaser of this while the increase and decrease switches 2 and 3 are operable. It is enough to inform.

Note that this operable period is left to the counting operation of the weight loss counter 9.

16 is an inverter circuit which, when the operation signal S of the one-shot multivibrator 4 is deactivated, inverts it and gives a reset signal to each of the counters 7 to 9, returning the count value of each counter to °゛0゛. It is something that makes you

The present invention is constructed as described above, and its operation will be explained below.

(1) When purchasing a fixed amount of sugar milk coffee: When the product selection switch 1 is turned on, the one-shot multivibrator 4 starts outputting the operation signal S.

Then, the quick signal S from the oscillator 5 is inputted to each of the counters 7 to 9 in the timer circuit 6 through the gate circuit G1, and each of the counters 7 to 9 starts counting operations.

Moreover, at the same time as the above-mentioned operation signal S is output, such signal S
is applied to one input terminal of the gate circuit G7, but at this time, since the weight loss counter 9 has not yet outputted the time-up signal U3, this is inverted and sent to the gate circuit G.
Since it is applied to the other input terminal of G7, the gate circuit G7
A notification signal F is outputted from the drive circuit 14 to activate the correction alarm 15 to start notifying that the sugar increase/decrease switch can be operated.

On the other hand, the operation signal S is applied to one input terminal of the gate circuit G6, and at this time, both of the metering, increasing and decreasing counters 7.8 and 9 receive the time-up signal Ul,
Since U2 and U3 are not output, each gate circuit G
2. Since G4 and G5 do not output signals and are inverted and applied to the other input terminal of gate circuit G6, unloading signal E is output from gate circuit G6 and drives the sugar unloading machine 13 in the next stage. start.

Therefore, the sugar carrying machine 13 starts carrying out the sugar.

Of course, when the product selection switch 1 is turned on, both the milk and powdered coffee delivery machines and the water heater (not shown) start operating, and the respective raw materials begin to be mixed with the sugar in the mixing bowl.

In this way, when the product selection switch 1 is turned ON, the counters 7, 8 and 9 can perform counting operations, the sugar unloading machine 13 can perform unloading of sugar, and the correction alarm 15 can operate the sugar increase/decrease switch. The notification of each period will start, but as the counting operation of each of the above counters progresses and the count of the weight loss counter 9 ends,
A time-up signal U3 is output from the counter 9,
Since the signal U3 is inverted and applied to the other input terminal of the gate circuit G7, the gate circuit G7 deactivates the notification signal F that had been output until then, and the result correction alarm 15 outputs the signal. Stop the operation.

On the other hand, the time-up signal U3 is sent to the gate circuit G2.
．． G4 and G5, but the gate circuit G2.
In G4, the time-up signals U1 and U2 are not given from the metering and increasing counter 7.8, and
Since the gate circuit G5 is not given a signal from FFII, each gate circuit G2. Since signals are not yet output from G4 and G5, the unloading signal E is still output from the gate circuit G6, and the sugar unloading machine 13 is driven.

When the above-described operation is continued and the quantitative counter 7 completes the run I operation, the quantitative counter 7 outputs a time-up signal U1, which is applied to the gate circuit G2.

This gate circuit G2 has already received the above-mentioned time-up signal U3.
Since the gate circuit G2 receives the inverted signal from the Q output terminal of the FF10 which is not in the set state, the gate circuit G2 outputs an unloading stop signal at the same time it receives the time-up signal U1. In order to apply the inverted signal to the other input terminal of the gate circuit G6, the gate circuit G6 simultaneously deactivates the unloading signal E and outputs the unloading signal E to the sugar unloading machine 13.
Stop the drive and finish transporting the sugar.

Of course, at the same time as the sugar delivery machine 13 stops driving, the milk and powdered coffee delivery machine and water heater also stop driving, and the mixing bowl pours the cooked drinking water (milk, sugar-added coffee) into the sales outlet. Pour into the loaded cup (not shown).

Thereafter, in this embodiment, the increase counter 8 continues to perform a counting operation, but the one-shot multivibrator 4 returns to its original state and deactivates the operation signal S immediately after the counting operation ends.

Coupled with this deactivation of the operation signal S, the inverter circuit 16
A reset signal is given to each counter 7 to 9,
Return each counter to the "0" state.

This concludes the sale of a certain amount of sugar, milk, and coffee with sugar.

(2) When purchasing increased or decreased amount of milk sugar coffee: During the operation of purchasing the milk sugar coffee described in item (1) above, when the weight loss counter 9 finishes counting, Until the correction alarm 15 stops operating, the sugar increase and decrease switches 2 and 3 can be operated.

Therefore, if the increase/decrease switch 2 is turned on while the increase/decrease alarm 15 is operating, FF10 becomes set and outputs a signal from its Q output terminal, and the other FFII
The signal is applied to the reset input terminal R of the gate circuit G2 to maintain it in the reset state, while the signal is inverted and applied to one input terminal of the gate circuit G2, and the signal is applied to the other two input terminals of the gate circuit G2. A standby state is set in which the gate circuit G3 is set in a state where it does not conduct even if it is supplied with the time-up signal U2, and is also supplied to one input terminal of the gate circuit G3, so that the gate circuit G3 can output a signal when the time-up signal U2 is supplied from the increase counter 8. To set/become.

Thus, by operating the increase/decrease switch 2, the sugar unloading machine 13 is set to the increase unloading state in which it is driven for a longer time than in the case of fixed quantity. If the operation is erroneous and contrary to the purchaser's will, the correction can be made by operating the weight reduction switch 3 while the correction alarm 15 is operating.

That is, after operating the increase switch 2, turn on the decrease switch 3.
Then, FFII enters the set state and outputs a signal from its Q output terminal, and uses this signal to reset FF10, which had been in the set state until then, and also causes the gate circuit G5 to receive the time-up signal U3 from the reduction counter 9. When input, it enters a standby state where it can output a signal.

On the other hand, since the above FFl0 is reset as described above,
Gate circuit G2. Deactivate the signal to G3.

In addition, as described above, after operating the quantity increase/decrease switch 2.3, if the amount of sugar can be fixed after all, the product selection switch 1 can be changed once again by the correction alarm 15.
It is best to operate it while it is running.

That is, when the increase and decrease switches 2 and 3 are operated and either FF10 or 11 is in the set state, when the product selection switch 1 is turned on, the FFI O is turned on through the diodes DI and D2. A reset signal is applied to each reset input terminal R of , FFI 1, and each FF immediately enters a reset state, and as a result, the drive of sugar unloading machine 13 is controlled by the continuous operation time of metering counter 7.

Now, as mentioned above, turn on the increase switch 2 and
0 is set. In this case, when the counting operation of each counter advances and the weight loss counter 9 finishes counting and outputs the time-up signal U3, the time-up signal U3 is inverted. Since this signal is applied to the other input terminal of the gate circuit G7, the gate circuit G7 deactivates the notification signal F that has been outputted up to that point, and as a result, stops the operation of the increase/decrease annunciator 15.

On the other hand, the time-up signal U3 is sent to the gate circuit G2.
．． G4. and G5, but the gate circuit G2.
In G4, the time-up signal U1. U2 is not given, and
Since the gate circuit G5 is not given a signal from the FF11, each gate circuit G2. No signal is output from G4 and G5 yet, therefore, the unloading signal E is still output from the gate circuit G6, and the sugar unloading machine 13
drive.

Furthermore, when the counting operations of the counters 7 and 8 progress and the counting operation of the quantitative counter 7 is completed, a time-up signal U1 is outputted.
is input to the gate circuit G2, but this gate circuit G2
Since the signal from the Q output terminal of FF10 is inverted and is in a non-conducting state, one input terminal of the gate circuit G2
Therefore, at this time, the other gate circuits G4. Since no signal is output from G5, the gate circuit G6 continues to output the unloading signal and continues to drive the sugar unloading machine 13.

When the above-described operation is continued and the increase counter 8 finishes counting, the time-up signal U2 is outputted from the increase counter 8 and applied to the gate circuit G3.

Then, in gate circuit G3, FF10 is applied to one input terminal.
Since more signals are given, output the signal immediately,
Such a signal has already been input to one input terminal as a time-up signal U.
3 to the other input terminal of the gate circuit G4, which causes the gate circuit G4 to output an unloading stop signal.

When the gate circuit G6 receives the unloading stop signal inverted, it stops the unloading signal E that has been output up to that point and stops driving the sugar unloading machine 13.

Of course, the drive of the milk/powdered coffee conveyor and water heater is also stopped as appropriate before and after the sugar conveyor 13 is stopped.

Immediately after the counting operation of the increase counter 8 is completed, the operation signal S of the one-shot multi-by-break 4 is also deactivated, and in conjunction with this, a reset signal is given to each counter 7 to 9, and the reset signal is set to "0". to return to.

This concludes the sale of coffee with milk and sugar added with an increased amount of sugar.

Next, as described above, turn on the weight loss switch 2 and
(Of course, even in this case, as long as the correction alarm 15 is in operation, the increase and decrease switch 2 is turned on again to set the FF 10, and Sato's increase )
In this case, when the counting operation of each counter progresses and the weight loss counter 9 finishes counting and outputs the time-up signal U3, the correction alarm 15 naturally stops its operation. However, at the same time, the time-up signal U3 is input to the other input terminal of the gate circuit G5, which has already received the signal from the FF11 to one input terminal, and the gate circuit G5 simultaneously receives the signal from the FF11. Outputs an unloading stop signal.

The gate circuit G6 inverts and receives this unloading stop signal, thereby stopping the unloading signal E that has been output until then, and stops driving the sugar unloading machine 13.

Of course, the drive of the milk/powdered coffee conveyor and water heater is also stopped as appropriate before and after the sugar conveyor 13 is stopped.

Thereafter, immediately after the count operation of the increase counter 8 ends, the operation signal S of the one-shot multi-bye break 4 is
In conjunction with this, a reset signal is applied to each of the counters 7 to 9, and the counters return to "0°".

This concludes the sale of milk sugar coffee with reduced sugar content.

Since the present invention is configured as described above, the amount of raw material corresponding to the last operated of the fixed quantity, increase, decrease, etc. correction switch is carried out. This is an excellent invention that can be corrected even if a person accidentally operates the switch, making it an extremely useful raw material discharging device.

[Brief explanation of drawings]

The accompanying drawing is an electrical circuit diagram showing one embodiment of the device according to the invention. DESCRIPTION OF SYMBOLS 1... Quantity switch, 2 and 3... Increase and decrease switch, 6... Timer circuit, 13... Raw material carrying out machine.

Claims (1)

[Claims] 1 It has correction switches for quantitative determination, increase in volume, decrease in volume, etc., and when these switches are operated, the raw material delivery machine is driven through a timer device for the time corresponding to the operated switch to supply the desired amount of raw materials. A raw material discharge control device for a vending machine, characterized in that the raw material discharge machine is driven through the timer device for a period of time corresponding to only the switch operated after the metering and correction switch is turned on.