JP2002211697A - Device for adjusting discharge flow rate of liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that when the discharge amount of liquid is adjusted by using a flow sensor, the discharge flow rate fluctuates due to wear or deposit caused by aging, and hence the accuracy of mixing ratio is lowered. SOLUTION: In a flow rate adjusting device for a cup type drink vending machine or a drink dispenser which includes independent liquid discharge circuits to provide a mixture of liquids (drink), at least a flow rate sensor and a solenoid valve are provided in each circuit, and discharge flow rates are integrated by a flow sensor, and the solenoid valve is opened or closed based on the integrated values, and the differences in the liquid discharge rates between the set values and the integrated values due to wear and deposit of the circuits caused by aging can be corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting a discharge flow rate of a mixed liquid (beverage) in a cup-type vending machine or a beverage dispenser for providing a beverage.

[0002]

2. Description of the Related Art In this type of beverage vending machine or dispenser, the adjustment of the mixing ratio of syrup to dilution water and carbonated water is performed by a flow regulator or a needle type flow control valve for those with small fluctuations in discharge pressure. I have.
The mixed liquid (beverage) is set by adjusting the mixing ratio for each circuit in advance and converting the discharge amount to the opening / closing time of the solenoid valve. Is provided.

[0003] The mixing ratio is adjusted, for example, by measuring the flow rates of the syrup and the diluting water with a ratio cup, and when the liquid level of the two is different, turning the knob of the flow regulator or the flow regulator to adjust the mixing ratio of the beverage. In this case, a method of adjusting the discharge flow rate to an appropriate range and adjusting the discharge flow rate to an allowable range is used.

[0004]

However, in conventional flow regulators and flow control valves, the discharge rate of the liquid fluctuates due to seasonal temperature changes and changes in the carbon dioxide pressure for pushing out the liquid. Was measured, and the mixing ratio had to be matched with the set value. In recent years, a device that can provide a beverage at a certain ratio by integrating a flow rate by a flow rate sensor and controlling an electromagnetic valve has been developed. But,
In this case, the discharge amount does not fluctuate due to the temperature, and it is not necessary to change the setting according to the change in the ambient temperature. However, the discharge amount fluctuates due to abrasion due to aging and the attachment of foreign matter.

[0005]

In order to solve this problem, a cup type vending machine is provided which has independent discharge circuits for syrup, dilution water and carbonated water, and mixes these to provide a beverage. The liquid discharge flow rate adjusting device of the beverage dispenser is provided with at least a flow rate sensor and an electromagnetic valve in each circuit, the discharge flow rate is integrated by the flow rate sensor, the electromagnetic valve is opened and closed by the integrated value, and the discharge flow rate of each circuit can be adjusted respectively. More achievable. The deviation from the set value of the discharge flow rate due to abrasion or the attachment of foreign matter accompanying the aging in each circuit can be corrected for each circuit. What is necessary is just to be able to perform by the input operation which adds a side or subtracts many sides.

A fixed ratio of beverage is discharged by controlling the opening and closing of a solenoid valve to control the discharge flow rate integrated by the flow rate sensor according to a predetermined calculation formula. It is possible to correct the reference calculation formula. At this time, the calculation formula is corrected by measuring the discharge amount with a measuring cylinder or the like and inputting the value through a control circuit using, for example, a keyboard or the like.

In the case where two circuits of liquid are weighed in one selling operation using a ratio cup, a calculation formula can be corrected by adding a missing side or subtracting a larger side, and the mixing ratio accuracy can be corrected. A high mixture is obtained.

[0008]

FIG. 1 is a system diagram showing an embodiment of the present invention. In FIG. 1, the upper part is a syrup circuit, the lower part is a dilution water circuit, 1 is a water pump, 2 is a syrup container, 3
Is a cooling coil, 4 is a nozzle, 5 is a solenoid valve, 6 is a flow washer (fixed throttle for flow rate adjustment), 7 is a flow rate sensor, and the syrup in the syrup container 2 is pushed by the pressure of carbon dioxide gas to form a cooling coil. The diluted water is discharged from the nozzle 4 through the electromagnetic valve 5 while being cooled by the cooling water 3, while the dilution water is cooled by the cooling coil 3 after passing through the electromagnetic valve 5 by the water pump 1 and discharged from the nozzle 4. At this time, the syrup and dilution water flow rates detected by the flow rate sensor 7 are taken into the control circuit, and the syrup circuit and the dilution water circuit are adjusted in accordance with the designated total amount of the finished beverage and a predetermined mixing ratio of the syrup and the dilution water. Are individually controlled to open and close. The syrup and the dilution water respectively discharged from the nozzles 4 are mixed by means (not shown), supplied to a cup, and provided as a beverage.

In this embodiment, when the discharge amount fluctuates due to aging, the solenoid valves 5 of the respective circuits are opened, a predetermined flow rate is counted by the respective flow rate sensors 7, and the respective solenoid valves 5 are operated. close. At this time, the discharged amount is measured by a measuring cylinder or the like, and if the measured discharged amount is input through a control circuit through a keyboard or the like, the discharge amount calculation formula is corrected, and a mixed liquid at a constant rate can be provided again. Specifically, the flow sensor 7 outputs a pulse in accordance with the flow rate of the fluid passing therethrough, and the flow rate is calculated based on a preset amount per one pulse (cc / pulse). By inputting the ejection amount measured in the above, the coefficient of the amount per one pulse (cc / pulse) is changed, and thereafter, the flow rate is calculated based on the changed amount per one pulse (cc / pulse). In addition, it is possible to cope with a change in the discharge amount due to a temporal change.

[0010] In addition, the set ratio of the beverage is discharged by controlling the respective electromagnetic valves 5, and the liquid in each round is separately measured. The calculation formula can be corrected by inputting the missing side and subtracting the young side through the control circuit 9 using a keyboard or a dip switch.

[0011]

According to the present invention, the discharge flow rate can be corrected in response to a change in the discharge amount due to a change over time, so that a mixed liquid having a high ratio accuracy can be provided.

[Brief description of the drawings]

FIG. 1 is a system diagram showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water pump 2 Syrup container 3 Cooling coil 4 Nozzle 5 Solenoid valve 6 Flow washer 7 Flow sensor

Claims (3)

[Claims] 1. A liquid discharge flow rate adjusting device for a cup-type vending machine or a beverage dispenser which comprises independent liquid discharge circuits for syrup, dilution water and carbonated water, and provides a mixed beverage of these liquids. At least a flow sensor and an electromagnetic valve are provided in each circuit, the discharge flow rate is integrated by the flow sensor, and the electromagnetic valve is opened and closed by the integrated value,
A liquid discharge flow rate adjusting device, wherein the discharge flow rate of each circuit can be adjusted individually. 2. The liquid discharge flow rate according to claim 1, wherein a deviation of the discharge flow rate from a reference value due to abrasion or foreign matter adhered to each circuit with the lapse of time can be corrected for each circuit. Adjustment device. 3. The method according to claim 2, wherein the correction is one.
A liquid discharge flow rate adjusting device characterized in that the discharge amount in a selling operation is individually measured, and can be performed by an input operation of adding a shortage side or subtracting a large side.