JPS6226511B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an automatic product dispensing device for a vending machine.

[Conventional technology]

BACKGROUND ART Vending machines are designed to allow a so-called inventory operation in which a service person or the like operates the vending machine to remove the products for the purpose of checking the products stored in the vending machine.

Figure 1 is a circuit diagram showing an example of a control circuit related to a conventional inventory function in a vending machine, in which S ₁ and S ₂ are solenoids for discharging each product of the vending machine, each called a serpentine passage. The solenoid is provided at the product outlet of a plurality of product storage passages, and each time this solenoid is energized, products are taken out one by one from the corresponding product storage passage.

X ₁ and X ₂ are relays that control the solenoids S ₁ and S ₂ , and are opened and closed as the transistors Tr ₁ and Tr ₂ are turned on and off.

P ₀ is an inventory instruction switch, P ₁ and P ₂ are product selection switches, R ₁ and R ₂ are sold out switches,
A ₁ and A ₂ are inventory instruction switches respectively.
This is an AND gate that calculates the AND of P ₀ and product selection switch P ₁ or P ₂ . F ₁ , F ₂ are flip-flops set by the outputs of AND gates A ₁ , A ₂ , and each flip-flop F ₁ , F ₂ is an OR gate.
OR ₁ , set by the output of timer _T1 .

In the above inventory mechanism, for example, if you want to take out product Y ₁ (not shown) in the first product storage aisle, turn on the inventory instruction switch P ₀ and then turn on the switch P ₁ to select product Y ₁ . When turned on, flip-flop
F ₁ is set, relay X ₁ and solenoid S ₁ are turned on, and one product Y ₁ is released. Then, after expiration of timer _T1 , flip-flop _F1 is set. If you want to carry out more products of the same type, repeat the operations of switches P ₀ and P ₁ described above.

When other products, for example, products in the second product storage aisle, are discharged, switches _P0 and _P2 are turned on.

[Problem that the invention seeks to solve]

In the conventional inventory mechanism as described above, it is necessary to operate an inventory instruction switch and a product selection switch each time one product is carried out, which is inconvenient when carrying out inventory work that involves carrying out products continuously. It was hot.

In addition, the sold-out switches R ₁ and R ₂ are activated (turned off) when there are only 2 to 3 items remaining in the product storage aisle, so even if the product selection switch is turned on after they are activated, the flip-flops F ₁ and F ₂ are turned off. is not set, and therefore the remaining products cannot be taken out. To take out the remaining products, you must release the sold out switch by hand and press the selection switch to carry out the removal of the products. ,
The disadvantages were that it took a long time to operate and in some cases it could not be done by one person.

Also, as shown in Utility Model Application No. 178774 (published on December 22, 1981), when the inventory instruction switch is operated once, the products in each product storage aisle will be released one after another in the order of the aisle. An inventory method has also been proposed, but this method has the disadvantage that various products are released as a mixture and must be sorted by type after the products are finished, making it unsuitable for inventory work and making the work cumbersome. There is.

This invention was made in order to eliminate the above-mentioned drawbacks, and when the inventory instruction switch is operated once and the product selection switch is operated, all of the selected products are continuously carried out.
The object of the present invention is to provide an automatic product unloading device that can perform inventory operations efficiently.

[Means to solve problems]

This invention is provided corresponding to a plurality of product storage passages of a vending machine, and includes an unloading device that unloads the products stored in each aisle, a relay that separately controls each unloading device, and a corresponding one for each product storage aisle. a plurality of product selection switches provided as a plurality of product selection switches, an inventory instruction switch for instructing continuous delivery of products, an output holding means for holding an on output for a certain period of time when the instruction switch is turned on, and the output holding means. The present invention is characterized in that when a product selection switch is turned on while an inventory signal is being generated, a relay of a product storage passage corresponding to the operated product selection switch is operated.

[Effect]

In the above configuration, when a plurality of product selection switches provided corresponding to each product storage passage are operated and an inventory operation is instructed by the inventory instruction switch, the output holding means holds the signal of the instruction switch for a certain period of time. Output. When the product selection switch is turned on while the inventory signal is being generated from the holding means, the relay of the product storage passage corresponding to the operated product selection switch is activated.

As described above, by simply turning on the inventory instruction switch and the product selection switch once, the products can be automatically and continuously carried out, so inventory operations can be performed extremely easily and quickly.

Furthermore, since only the products designated by the product selection switch during inventory operation can be taken out, there is no possibility that various products will come out mixed together as in the past.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In Fig. 2, X ₁ to X _o are delivery relays that drive the product delivery mechanisms of n product storage passages in the vending machine, and D ₁ to D _o are drivers that drive each delivery relay X ₁ to X _o . be.

P ₀ is inventory indication switch, P ₁ to P
_o is a product selection switch provided corresponding to each product storage aisle. The CM is a coin detection processing mechanism of a vending machine, and when it detects that money exceeding a predetermined amount has been inserted during normal vending operations, it sends out a bend signal _B0 .

In this embodiment, the output holding means for holding the on-output for a certain period of time when the inventory instruction switch _P0 is turned on is composed of a flip-flop _FF0 and a timer _TM1 , and the flip-flop _FF0 is used as an output holding means for keeping the output on for a certain period of time when the inventory instruction switch P0 is turned on. It is set when ₀ is turned on, and is reset by the output of timer _TM1 .

FF ₁ to FF _o are flip-flops and are provided corresponding to each product selection switch P ₁ to P _o , and are set when the corresponding product selection switch is turned on, and are set by the preset counter CNT during inventory operation. It is reset when the same number of products are taken out, and during normal sales, it is reset by a signal from the coin detection processing mechanism.

TM ₀ is a timer for controlling the drive time of the carry-out mechanism, and is set according to the time required to complete carrying out one product after the carry-out mechanism starts operating.

TM ₂ starts after a certain period of time from the rise of timer TM ₀ .
That is, it is _a timer that generates a signal after _a time corresponding to the return time of relays X ₁ , X _{2 ,} ...
The set output of FF _o is applied to timer TM ₀ via AND gate A ₁₂ and OR gate O ₄ , and the timer
Restart TM ₀ and restart the unloading mechanism.

In the above configuration, during normal sales, when a predetermined amount is inserted into the vending machine and a bend signal B ₀ is sent from the coin detection processing mechanism CM, this bend signal B ₀ is sent to the AND gate via the OR gate O ₁ . Applied to gate _A11 . For example, when you want to buy product Y ₁ (not shown) in the first product storage aisle, turning on product selection switch P ₁ sets flip-flop FF ₁ , and its set output is applied to AND gate A ₁ . be done. On the other hand, the signal of the product selection switch P ₁ is applied to the AND gate A ₁₁ via the ON O ₂ , and the output signal of the AND gate A ₁₁ starts the timer TM ₀ , and the signal is applied to the AND gate A ₁ . Relay X ₁ is energized via driver D ₁ by the output of AND gate A ₁ , and one product Y ₁ is carried out.

When the bend signal _B0 disappears due to the removal of the product _Y1 , the output of the inverter IN becomes "1", and at this time, the signal output from the rise detector RD resets the flip-flop _FF1 via the OR gate _O3 . applied to the flip-flop terminal.
FF ₁ is reset and closes AND gates A ₁ and A ₁₂ .

At the time of inventory operation, first, when inventory instruction switch _P0 is turned on, flip-flop _FF0 is set, and its set output is applied to AND gate _A11 via OR gate _O1 .

On the other hand, when product Y ₁ in the first product storage aisle is inventoryed (discharged) and product selection switch P ₁ is turned on, a signal is applied to AND gate A ₁₁ via OR gate O ₂ , and the AND gate
An output of A ₁₁ occurs, which turns on timer TM ₀ via OR gate O ₄ , which
The output of TM ₀ is applied to AND gate A ₁ and also applied to counter CNT.
The content of CNT becomes "1". On the other hand, due to the ON operation of product selection switch _P1 , the flip-flop
FF ₁ is set _, and its set output is applied to AND gate A ₁ , which produces an output to turn on relay X ₁ and carry out one product Y ₁ . On the other hand, the output of timer TZM ₀ becomes 1 after a certain period of time.
When the timer TM2 falls from 0 to 0, timer _TM2 starts.
Then, the relay X ₁ is restored, and after the set time of the timer TM ₂ , the signal of the timer TM ₂ is applied to the AND gate A ₁₂ . Since the set signal from flip-flop _FF1 is applied to this AND gate _A12 via OR gate _O5 , the output of AND gate _A12 becomes "1", and this "1" signal is applied via OR gate _O4 . is applied to timer TM ₀ , and the timer
Restart TM ₀ , re-energize relay X ₁ , and unload the second product Y ₁ . Further, the content of the counter CNT becomes "2".

By repeating the above operation, the unloading operation is performed the number of times set by the counter CNT, and the counter
When the content of CNT reaches the preset value, the output of counter CNT occurs, resetting flip-flop _FF1 and completing the unloading of all articles _Y1 . Note that by setting the number preset in the PRD of the counter CNT in accordance with the number of products stored in one product storage passage, all remaining products can be taken out at the time of inventory.

Thereafter, when the set time of the timer _TM1 has elapsed, the output of the timer _TM1 becomes "1", and the flip-flop _FF0 is reset by this "1" signal, thereby ending the inventory operation.

If you want to carry out other products Y ₂ , Y ₃ ,...Yn by inventory operation, turn on the inventory instruction switch P ₀ and then turn on the product selection switch P ₂ ,
It is sufficient to turn on the one corresponding to the product among P ₃ , ...P _o .

As mentioned above, flip-flop FF ₀ is reset after the time set by timer TM ₁ , so
Even if the product selection switch is turned on after the time set by the timer _TM1 after turning on the inventory instruction switch _P0 , the inventory operation cannot be performed.

Note that the preset value PRD of the counter CNT can be set arbitrarily. Further, the count contents of the counter CNT are reset to 0 when a bend signal is generated in normal sales operation.

Note that the present invention is not limited to the illustrated embodiment, and similar functions may be performed by software using a microcomputer.

Further, a shorting pin or the like may be used instead of the inventory indicating switch.

As described in detail above, according to the present invention, by simply turning on the inventory instruction switch and the product selection switch once, the number of products set on the counter can be automatically and continuously carried out. can be done extremely easily and quickly.

[Effects of the Invention] According to the present invention, inventory can be carried out by operating an inventory instruction switch, so that even one person can completely carry out desired products by simply operating the inventory switch.

Furthermore, since only the products designated by the product selection switch during inventory operation can be taken out, there is no possibility that various products will come out mixed together as in the past.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing a conventional inventory function control device, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. _{X 1 , X 2 , ... _ _ _ _} , TM ₁ , TM ₂ ... timer, CMT ... counter.

Claims (1)

[Claims] 1. An unloading device that is installed corresponding to multiple product storage aisles of a vending machine and that unloads the products stored in each aisle, a relay that controls each unloading device separately, and a A plurality of product selection switches provided, an inventory instruction switch that instructs continuous delivery of products, an output holding means that holds an on-output for a certain period of time when the instruction switch is turned on, and an inventory control switch from the output holding means. This automatic product delivery device for a vending machine operates a relay in a product storage passage corresponding to the operated product selection switch when a product selection switch is turned on while a signal is being generated.