KR810001828B1 - Cold-drink slot machine auto-control circuit - Google Patents

Abstract

A cold-drink vending machine auto-control circuit has the characteristics of high reliability, low power loss, full-auto-process, and of simplicity. An improved machine is composed of an auto-selecting control unit(c), power source control unit(D), water level sensing device(A), and a cold-drink control unit (B). This vending machine directly cools the drinking water, which is sterilized to proper temperature. All the necessary units from prepairing to vending cold drinking water, are combined by only unit, and are controlled full automatically.

Description

Cold Drink Vending Circuit

1 is a control block diagram of the present invention.

Figure 2a is a level detection control and sales stop circuit diagram of the present invention.

2b is an ice detection control circuit diagram of the present invention.

3 is a cold drink control circuit diagram of the present invention.

Figure 4 is a waveform diagram of each part during automatic washing in the cold beverage control circuit diagram of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cold beverage automatic sales circuit which enables automatic control of a cold water container and its peripheral devices until the cold beverage is manufactured and sold in the cold beverage vending machine.

In a typical cold beverage vending machine, ice is made with a separate ice maker, and a cold drink has been put into a disinfectant for sterilization. In the conventional apparatus as described above, a structure is constructed by combining units configured separately. It is complicated and has the disadvantage of increasing the cost, failure rate, and volume by using machinery.

In the background, the present invention is to sterilize the beverage directly and then directly cool it to a suitable temperature for sale, and to form all the necessary devices to manufacture and sell the cold beverage as one unit, and all operations are automatically performed. Processed as well as having a simple structure according to the accompanying drawings, it will be described in detail as follows.

In the normal cold beverage vending machine consisting of the automatic sales selection control device (C) and the power supply control device (D) as shown in FIG. 1, the water level and ice amount detection control devices (A) (A ') and the cold beverage control device ( B), the water level detector and the ice level detector (4) (5) (6) (7) are configured by further combining, first, the water level and ice level detection control device (A) (A ') is a water level detector as shown in FIG. (4) (5) connects the capacitor (C ₁ ) to the detector (4) and grounds the detector (5), the capacitor (C ₁ ) is connected to the power supply (V _S ) via a resistor (R ₁ ), On the other hand, a rectifier circuit E consisting of a diode D ₁ resistors R ₂ -R ₃ and a capacitor C ₂ is constituted, and the output of the rectifier circuit E is a transistor Q ₁ , Q ₂ . And a transistor (Q ₁ ) base of the Schmidt circuit (G) composed of resistors (R ₄ -R ₈ ), and the output of the Schmitt circuit (G) is a resistor (R ₉ ) and a differential amplifier (OP). through a _1), a resistor (R _10), a transistor (Q ₃₎ Through the water supply valve 12 drives the drive relay (Ry ₁₎ for a relay (Ry ₁₎ converting the switch, and to drive the water supply valve 12 for controlling the solenoid (12 ') connected to this, on the other hand it is Through the resistor (R ₁₁ ), the differential amplifier (OP ₂ ), the resistor (R ₁₃ ), and the transistor (Q ₄ ), the stop relay (Ry ₂ ) is driven to cut off the output (Vcc) of the power circuit and the lamp (L). ₁ ) to turn on, connect capacitor (C ₃ ) between resistor (R ₉ ) and differential amplifier (OP ₁ ) to ground, and resistor (R ₁₂ ) between resistor (R ₁₀ ) and transistor (Q ₃ ). ) the sikimyeo connected to ground, a resistor (R ₁₁₎ and sikimyeo parallel installation of the diode (D ₃₎ to the connection to ground the capacitor (D ₄₎ between the resistor (R ₁₁₎ and a differential amplifier (OP _2), resistance It is configured by grounding through the resistor R ₁₁ between the base of R ₁₃ and transistor Q ₄ .

On the other hand, in cold drink control unit (N) comprises a switch (SW ₃ ') cooperating in accordance with the help sell switch (SW _3), such as 3-press is connected to the switch (SW _3') transistor (Q ₅₎ on one side of the base Is connected, and the collector side, which is the output of transistor Q ₅ , is connected to one side of NAND gate NA ₁ via resistor R _{15 on} the one hand, and the collector and NAND of transistor Q _{7 on the} other hand. gate and connected between one side of the (S _2), a NAND gate (S ₁₎ output monostable is connected to a multivibrator (FF), monostable multivibrator (FF) both the output of the output resistance (R ₁₇₎ And a relay Ry ₃ for driving the inflow and outflow valves 8 and 10 through the transistor Q ₆ , and the output is connected to one input of the NAND gate S ₂ , and the NAND gate ( The output of S ₂ ) drives the driving motor Ry ₄ for the mixing motor 9 through the transistor Q ₈ , so that the mixing motor 9 is driven. The emitter of the transistor Q ₇ is connected between the monostable multivibrator FF and the resistor R ₁₇ , and the base is connected to the automatic washing switch SW ₂ via the audio diodes D ₇ and D ₈ . It is connected to one terminal of the switch (SW ₁ ) to be interlocked, and a condenser (C ₆ ), a diode (D ₁₀ ), and a resistor (R ₂₁ ) are connected between the diode (D ₇ ) and one terminal of the switch (SW ₁ ). It is connected to one side of the NAND gate S ₁ through. The emitter of the transistor Q ₅ is grounded, the collector side is connected to the power supply Vcc via a resistor R ₁₆ , and one terminal of the switch SW ₃ is connected to the power supply Vcc via a resistor, and the resistor R ₁₇ ) is grounded through resistor R ₁₈ between transistor Q ₆ and grounded via resistor R ₂₂ between NAND gate SW ₂ and transistor Q ₃ , and with capacitor C ₆ . The diode D ₁₀ is grounded through a resistor R ₂₀ and coupled to a power source through a resistor R ₁₀ between the diode D ₇ and the capacitor C ₆ .

Reference numeral 1 denotes a cold water container, 2,2 'is a water passage, 3 is an inner cylinder, 11 is a powder and sugar container, 12' is a solenoid for driving a water supply valve, 13 is a cooling device, 14 is a cold drink nozzle, and 15 is an evaporator. to be.

In the present invention having the configuration as described above, the water supply valve 12 is supplied with the signal from the automatic sales selection control device C and the water is supplied to the water in the cold water container 1 as shown in FIG. The signal detected by the detectors 4 and 5 stops the operation of the water supply valve 12 to stop the water supply, and the water of the cold water tank 1 first enters the passage 2 and the ice on the evaporator 15 This configuration allows the water in the passage 2 to cool and flow into the lower passage 2 '.

At this time, when a coin is put into the vending machine and the sales switch SW ₃ is pressed, the switch SW ₃ ′ interlocked to operate the cold beverage control device B to operate the inlet valve 8 and the outlet valve 10. , Driving the mixing motor (9), when the inlet valve (8) is opened, water is introduced into the inner cylinder (3) and at the same time powder or other sugar flows into the inner cylinder (3) from the container 11 and mixing It is mixed with water by the motor 9. Once the mixing fee is discharged valve 10 is opened and the cold beverage is discharged through the nozzle 14 of the cold beverage.

In addition, since the water of the cold water container 1 becomes cold as the ice melts, when the increase or decrease of the ice thickness is detected by the ice level detectors 6 and 7, the ice amount controller A 'and the cold Cooling device 13 is driven by the operation of the beverage control device (B), a cold cold drink is formed while maintaining a certain thickness of ice in the evaporator (15).

At this time, in the automatic washing after selling cold beverage, pressing the automatic washing switch (SW ₁ , SW ₂ ) of FIG. 3 transmits the automatic washing signal from the automatic sales selection control device (C) to the cold beverage control device (B), And the outlet valves 8 and 10 and the mixing motor 9 are periodically driven by the operation of the monostable multivibrator FF to be automatically cleaned.

Therefore, when looking at the specific control operation for achieving the above-described overall operation in the circuit diagram of the present invention, first, before starting the automatic sales, the water level and ice amount detection control device (A) (A ') as shown in FIG. 4) When the water is filled in (5), the small current induced in the power supply (Vs) flows from the water level detector (4) to the water level detector (5) through the condenser (C ₁ ), and on the other hand, the rectifier circuit (E). Flows to the diode (D ₁ ), and the output rectified by the rectifier circuit (E) is supplied to the Schmitt circuit (G).

However, at this time, since the operating point voltage of the schmitt circuit G cannot be reached, the output of the schmitt circuit G is in a low state.

On the contrary, if water is not occupied between the level detectors 4 and 5, the current flowing to the level detectors 4 and 5 through the capacitor C ₁ flows to the rectifier circuit E. The rectified output satisfies the operating voltage of the Schmitt circuit G so that the output of the Schmitt circuit G changes to the state of “High”. The output signal in this " High " state operates the transistor Q ₃ via the resistor R ₁₀ after a predetermined period of delay by the resistor R ₉ and the capacitor C ₃ differential amplifier OP ₁ . Water supply valve 12 is driven from the power supply valve 12 driving relay Ry ₁ and the emitter ground point of the transistor Q ₃ to operate the water supply valve 12 driving relay Ry ₁ to supply a water supply valve connected thereto. (12) The control solenoid 12 'is driven. At this time, if water is not detected in the water level detectors (4) and (5) due to a single manual operation even though the water supply valve (12) is open, the output signal of the differential amplifier (OP ₁ ) is the resistance (R ₁₁ ), the capacitor (C ₄ ) there is to keep the "High" potential longer than the delay time which the resistance (R _11), so increase the potential of the capacitor (C4) by a resistor (R ₁₁₎ and capacitor (C ₄₎ time constant shorter than the time differential amplifier according to the When the output of OP ₁ remains in the High state and becomes Low, the charge of the capacitor C ₄ is discharged soon by the diode D ₃ , and the resistor R ₁₁ and the capacitor C ₄ are discharged. When it becomes longer than the time constant time, the potential of the capacitor (C ₄ ) becomes high, and the transistor (Q ₄ ) is turned on by the output of the differential amplifier (OP ₂ ), and the driving stop relay (Ry ₂ ) is driven to the circuit. Turn on the stop lamp (L ₁ ) while turning off the DC power input (Vcc) line supplied to the power supply.

And, the ice amount detection control device (A '), as shown in the second b, the ice is formed when a certain amount of water is filled, but when the water, such as the temperature of the ice is discharged due to the sale of new water is supplied so that the ice melts do.

Therefore, the ice holding the constant thickness gradually becomes thinner, and the ice amount detector 6 is in a state in which no ice is detected.

This is similar to the circuit state when the water level detector 4 is not detected with water, and the current flowing through the condenser C ₁ ′ to the ice level detectors 6 and 7 passes through the rectifier circuit E ′. The output state of the circuit G 'is changed to the ＂High state. The output signal of the Schmitt circuit G 'is delayed by a resistor R ₉ ′, capacitor C ₃ ′, and differential amplifier OP ₁ ′ for a predetermined period, and then the transistor Q ₃ ′ is turned on to connect to it. Since the driving relay Ry ₁ ′ of the cooling device 13 is operated for a time constant period of the resistor R ₉ ′ and the condenser C ₃ ′, the cooling device 13 operates for a predetermined period of time. Maintain constant thickness.

A점의 전위가 낮아지게 된다. 그러므로 콘데서(C₅)에 평상시 충전된 전압이 저항(R₁₅)과의 상호 시정수만큼의 소정기간 방전하므로

점 및

점은 전위가 낮아져서 낸드게이트(S₁)의 한 입력단자는 ＂Low＂ 상태가 되고, 최초 트랜지스터(Q₅)가 OFF된 상태에서는 전원단자(Vcc)에서 각기 두 입력에 ＂High＂ 상태로 공급하고 있으므로 낸드 게이트(S₁) 출력상태가 ＂Low＂상태로 있다가 한 입력이 ＂Low＂가 되므로 낸드 게이트(S₁)의 출력상태가 ＂High＂로 변환되고, 이 출력은 단안정멀티 바이브레이터(FF)에 입력되어 기억상태(1: FF의 상부출력상태, 1 : FF의 하부 출력상태)로 변환시킨다. 이때 단안정멀티바이브레이터(FF)의 상부출력은 평상시 ＂Low＂상태에 있다가 낸드게이트(S₁)의 출력변화로 ＂High＂상태로 한다.As described above, after the coin is put in the state of controlling the water and ice in the cold water container 1 and pressing the selling switch SW ₃ (in this case, the switch is switched off at the same time with the release of the switch SW ₃ ), switch (SW ₃ ') the momentary "oN" be coupled to the resistance associated with the power supply (Vcc), to be the base potential of the transistor (Q ₅₎ rises so that the transistor (Q ₅₎ interconnecting

The potential at the point A becomes low. Therefore, the voltage normally charged to the capacitor C ₅ discharges for a predetermined period of time by the mutual time constant with the resistor R ₁₅ .

Point and

The dot is lowered so that one input terminal of the NAND gate S ₁ is in a low state, and when the first transistor Q ₅ is turned off, the power supply terminal Vcc is supplied in a high state to each of the two inputs. Since the NAND gate (S ₁ ) output state remains low, and one input becomes low, the NAND gate (S ₁ ) output state changes to High, and this output is a monostable multivibrator. It is inputted to (FF) to convert to a storage state (1: upper output state of FF and 1: lower output state of FF). At this time, the upper output of the monostable multivibrator FF is normally in a low state, and then changes to a high state due to an output change of the NAND gate S ₁ .

Accordingly, this output operates transistor Q ₆ to drive relay Ry ₃ for driving inlet and outlet valves 8 and 10, and inlet and outlet valves 8 and 10 are switches SW ₄ . The inlet valve 8 is closed in the state where it is normally attached to the contact 1 ', the outlet valve 10 is in the open state, and the relay Ry ₃ operates to operate the switch SW ₄ interlocked with the contact point 1. And the outlet valve 10 is closed as the inlet valve 8 is opened, and cold water flows from the passage 2 'into the inner cylinder 3, and at the same time, a certain amount of the container 11 mixed with the juice powder and sugar Mixed powder is supplied.

At the same time, the two input states of the NAND gate S ₂ are in a low state, and thus are in a high state, so that the transistor Q ₈ is turned on so that the relay Ry ₄ for driving the mixing motor 9 is connected. Because of the driving, the mixing motor 9 is driven at the same time as the inlet and outlet valves 8 and 10.

Therefore, when a predetermined period of time constants of the resistor R ₁₅ and the capacitor C ₅ elapse, the capacitor C ₅ starts charging again and reaches a predetermined level, and the output state of the NAND gate S ₁ returns to its original state. In addition, the two output states of the monostable multivibrator FF also change to the original 0.1, so that the transistors Q ₆ and Q ₈ do not operate, and the inlet and outlet valves 8 and 10 and the mixing motor 9 are changed. ) The driving relays Ry ₃ and Ry ₄ are prevented from driving so that the switch SW ₄ is a contact 1 'and the mixing motor 9 is turned off.

Therefore, the switch SW ₄ changes to the contact point 1 'and at the same time the inlet valve 8 is closed and the outlet valve 10 is opened, so that the mixture is discharged through the nozzle 14.

On the other hand, after the cold beverage, which is a mixture, is discharged, the switch SW ₁ is turned off and the switch SW ₂ is turned on when the automatic cleaning switch SW ₄ is pressed.

As the switch SW ₁ is turned off, the base potential of the transistor Q ₇ becomes high, and since the upper output of the monostable multivibrator FF connected to the emitter is in a low state, the transistor Q ₇ operates. .

점이 시간 T₃영역과 같이 되어 유입 및 유출 밸브(8, 10) 구동용 릴레이(Ry₃)가 ON되고 스위치(SW₄)가 접점(1)으로 연결되어서 유입밸브(8)는 열리고 유출밸브(10)는 닫히게 된다. 이때 믹싱모우터(9)의 동작은 낸드 게이트(S₂)에 의해

점이나 ⓓ점이 ＂Low＂ 상태로만 되면 구동용 릴레이(Ry₄)가 동작하게 되므로 계속하여 믹싱모우터(9)는 동작하게 된다.Therefore, as shown in FIG. 4, the potential of the point A is lowered by the operation of the transistor Q ₇ (the square wave at the point A is constant due to the operation of the resistor R ₁₅ , the capacitor C ₅ , and the monostable multivibrator FF). Has a pulse width To of a period) and the potential at the point B becomes a waveform similar to the region of time T ₂ by the time constants of the resistor R ₁₅ and the capacitor C ₅ , whereby the monostable multivibrator (FF) Since the upper output of N) goes from Low to High, the output signal is transmitted to the emitter of transistor Q ₇ again, and transistor Q ₇ is turned off.

The point becomes the time T ₃ area and the inlet and outlet valves 8 and 10 drive relay Ry ₃ is turned on and the switch SW ₄ is connected to the contact point 1 so that the inlet valve 8 is opened and the outlet valve ( 10) is closed. At this time, the operation of the mixing motor 9 is performed by the NAND gate S ₂ .

When the dot or the ⓓ point is in the Low state, the driving relay Ry ₄ is operated so that the mixing motor 9 continues to operate.

Therefore, the time T _3, T _4, each sub-pulse in the region of T ₅ is the repeating the "High" and "Low" state, depending on the nature of the monostable multivibrator (FF), thus the transistor (Q ₆₎ is Since the ON / OFF is repeated, the inlet and outlet valves 8 and 10 repeat the operation.

Therefore, the above-described repetitive operation is performed by the inner cylinder 3 and the inflow and outflow passages automatically by cold water, and when the automatic washing switches SW ₁ and SW ₂ are pressed in reverse, the transistor Q ₇ is turned OFF so that the repetitive operation is performed. After this, the power supply voltage Vcc is applied through the capacitor C ₆ so that the two input states of the NAND gate S ₁ become High and High, so the output becomes Low. The upper output of the stable multivibrator FF is in a low state, the lower output is in a high state, and the two input states of the NAND gate S ₂ are also in a high state.

The present invention as described above is able to automatically process the process of manufacturing and selling cold beverages and has a feature that can reduce the unnecessary mechanical devices or power loss and improve the reliability by configuring a simple unit.

Claims (1)

In a normal cold sound vending machine consisting of an automatic sales selection control circuit (C) and a power supply control device (D), automatic sales of cold drinks made by combining a water level detection control device (A) and a cold beverage control device (B) Circuit.

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