JPH02152693A - Apparatus for supplying concentrated beverage - Google Patents

Abstract

PURPOSE:To necessarily supply only water for a definite time after coffee and water are supplied for a predetermined time by providing an operational control circuit for operating the number of pulses of a conc. beverage extraction means and the driving time of a water supply means from a set mixing ratio and a set consumption unit amount and driving the conc. beverage extraction means and the water supply means on the basis of the input signal from an extraction switch. CONSTITUTION:An operational control circuit 24 constituted in the manner that the number C of drive pulses of a conc. beverage extraction means 22 and the drive time D of a water supply means 16 are operated from a set mixing ratio A and a set consumption unit amount B and the concn. beverage extraction means is driven by the number C of pulses for a time D-H and the water supply means 16 is driven for a time D is provided. Dilute coffee is extracted from a predetermined time from the starting of extraction and, thereafter, only water is supplied for a definite time. Therefore, even when a conc. coffee liquid is adhered to a nozzle, there is washing effect certainly washing off said coffee liquid and the generation of the spoilage or fungi due to the adhesion of conc. coffee is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a concentrated beverage dispensing device for mixing and dispensing concentrated beverage liquid and hot or cold water.

BACKGROUND OF THE INVENTION In restaurants such as coffee shops and restaurants, there is a tendency to automate coffee extraction due to rising labor costs and labor shortages, and many automated coffee servers have been commercialized.

The conventional coffee server as described above will be described below with reference to the drawings.

In FIG. 1, 1 is a housing of a concentrated beverage supply device (coffee server).

In the figure, reference numeral 2 denotes an operating section including a power switch 3, a power lamp 4. It has an extraction switch 6.

FIG. 2 is a sectional view, and in the figure, 6 is a cold water tank covered with a heat insulating material A, and a compressor 8. Condenser9. It is mounted on top of a cooling system consisting of a 10° evaporator wrapped around a cold water tank 6, a 12° evaporator wrapped around a refrigerator compartment 11, and a blower 13. 14 is a water inlet provided on the back, and is directly connected to the water supply. Reference numeral 16 denotes a water injection pipe that communicates the water injection port 14 with the cold water tank 6, and a water injection pulp 16 for controlling the amount of water is provided between the water injection pipes 16 and 6. 17 is a water supply pipe that communicates the cold water tank e and the water supply port 18. A drain pipe 2o communicating with a drain port 19 is provided at the bottom of the cold water tank 6. 21 is a concentrated beverage pack inserted into the concentrated beverage pack refrigerator compartment 11;
Its tip end is inserted into a concentrate extraction coil 22 for extracting concentrated beverage from the concentrated beverage pack 21. A pulp mechanism (not shown) is built into the tip of the concentrated beverage pack 21, and extracts concentrated beverage through electromagnetic interaction with the concentrated beverage extraction carp/l/22. 23 is a nozzle that mixes the water supplied from the water supply port 18 and the concentrated drinking liquid.

Reference numeral 24 denotes a control circuit that performs overall control of the concentrated beverage supply device, and includes a first switch 25 that sets the mixing ratio A of the concentrated beverage liquid and water, and a second switch that sets the consumption unit amount B of the diluted beverage liquid. Equipped with 2e.

Next, the electric circuit of the concentrated beverage supply device shown in FIG. 3 will be explained. 27 is a commercial AC power source, 3 is a power switch, to which the power lamp 4 is connected via a current fuse 28, and the temperature sensing section is connected to the cold water tank 6 through a first thermostat 29 installed in close contact with the compressor. The air blower 8 and the blower 13 are connected in parallel, a solenoid valve 31 is connected in parallel via a second thermostat 30, and the primary side of a power transformer 32 is connected. A control circuit 24 composed of a microcomputer 33 and peripheral circuits is connected to the secondary side of the power transformer 32.

The control circuit 24 has an extraction switch 5. as an input. A first switch 25 for setting the mixing ratio A of concentrated beverage liquid and water
．． Second switch 2 for setting consumption unit amount B of diluted beverage liquid
6, and has a water injection pulp 1e and a concentrate extraction coil 22 as outputs.

The operation of the conventional concentrated beverage supply device configured as described above will be explained using the flowchart shown in FIG.

The water in the cold water tank e is cooled by evaporation 1510 constituted by a cooling system.

First, in step 34, the first switch 26 consisting of a two-digit digital switch is used to control the mixing ratio A of concentrated beverage liquid and water.
Set. The mixing ratio A can be set in steps of 1 from 1:1 to 1:99. Next, in step 36, the second switch 26, which is also a two-digit digital switch,
Set the consumption unit amount B of the diluted beverage liquid. The consumption unit amount can be set in 10eC increments from 10cc to 990cc. Then, in steps 36 and 37, the microcomputer 33 in the control circuit 24 selects the concentrated beverage extraction coil 2 from the mixing ratio A set by the first switch 25 and the consumption unit amount B set by the second switch 26.
The driving time C of No. 2 and the driving time of the water injection pipe 16 are calculated based on the following formula.

D=XB+F1+A Here, E is the amount of concentrated beverage extracted per second, and the pulp machine I? 4 (not shown) and the paste liquid extraction coil 22. Normally it is 1 cc/sec. F-ba. This is the amount of water supplied per second, and water injection pulp 16. This is determined by the water supply system consisting of the cold water tank 6, water injection pipe 15, and water supply pipe 17. Normally it is 20cc/sec.

For example, if the mixing ratio A is 26, i.e. 1:25, the consumption unit amount B
is 150cc, and the amount of concentrated beverage extracted per second E is 1cc/
If the water supply fiF per second is 5 occ/second, the driving time of the concentrated beverage extraction coil 22 C=X
150÷1=5.8 seconds 1+25 The driving time of the water-filled pulp 16 is calculated as D=x160÷30=4,8 seconds 1+25, and the calculation result is stored in the RAM in the microcomputer 33.

Next, in step 38, the user presses the brewing switch 6 of the operating section 2, a signal thereof is input to the control circuit 24, and coffee is extracted in step 39. That is, the concentrated liquid extraction coil/L/22 is driven for a time C based on the output from the control circuit 24, and extracts a certain amount of concentrated beverage liquid. At the same time, the water injection valve 16 is activated for a certain amount of time, and a certain amount of water is supplied from the tap to the cold water tank 6 through the water injection pipe.
The water pressure in the cold water tank e causes the cold water in the cold water tank e to be supplied from the water supply port 1e through the water supply pipe 17. Then, the concentrated beverage liquid and the cooling water are mixed and passed through the nozzle 23 to 1.
A cup (consumption unit amount) of coffee is supplied.

In the above example, the concentrate extraction coil 22 has a diameter of 5.8
5.9 cc of coffee concentrate is extracted in one second drive. At the same time, the water injection pulp is driven for 4.8 seconds to reach 144.2
0Q cold water is supplied and one cup (1 cup) is supplied from Noz/v23.
6 occ) of Ainu coffee will be provided.

Problems to be Solved by the Invention However, in the above-described configuration, under the conditions shown in the conventional example, when the brewing switch is pressed, concentrated coffee is produced at 5.5%.
For 8 seconds, cold water is extracted for 4.8 seconds.

Therefore, diluted coffee is extracted for 4.8 seconds after starting extrusion, but only concentrated coffee is supplied for 1 second after that, resulting in concentrated coffee adhering to the nozzle after extrusion, which is a hygiene problem. was there.

In view of the above problems, the present invention always supplies only water for a certain period of time after supplying concentrated beverage liquid (coffee) and water for a certain period of time! ! The present invention provides a compressed beverage supply device.

Means for Solving the Problems In order to solve the above problems, the concentrated beverage supply device of the present invention includes:
From the set mixing ratio A and consumption unit amount B.

The number of driving pulses C of the concentrated beverage extraction means and the driving time of the water supply means are calculated, and the input signal from the extraction switch causes the concentrated liquid extraction means to be activated by several degrees per centimeter per centimeter per I/7° at time DH. The controller is equipped with an arithmetic control circuit that drives the controller for a certain amount of time.

Function: With this configuration, diluted coffee is extracted for a predetermined period of time from the start of extraction, and then only water is supplied for a certain period of time, so that concentrated coffee adhering to the nozzle portion can be reliably washed away.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

In this example, the appearance of the concentrated beverage supply device.

The internal configuration and electric circuit are the same as those described in the conventional example, and the
As shown in Figures 2 and 3.

The operation of the concentrated beverage supply device configured as described above will be explained using the flowchart shown in FIG. 4.

The water in the cold water tank θ is cooled by an evaporator 10 constituted by a cooling system.

In step 40, the first switch 26 consisting of a two-digit digital switch sets the mixing ratio A of concentrated beverage liquid and water.
Set. The mixing ratio A can be set in steps of 1 from 1:1 to 1:99. Next, in step 41, the second switch 26, which is also a two-digit digital switch,
Set the consumption unit amount B of the diluted beverage liquid. The consumption unit amount can be set in 10cc increments from 10cc to 990cc. Then, in steps 42, 43, and 44, the microcomputer 33 in the control circuit 24
Mixing ratio A set by switch 26 and second switch 26
From the consumption unit amount B set in
The number of driving pulses C of V22 and the driving time of the water injection valve 16 are calculated based on the following formula.

The number of driving pulses C of the concentrated beverage extraction carp 1V22 is the driving time of the water injection pulp 16, and E is the amount of concentrated beverage extracted per one pulse. (not shown) and the concentrate extraction coil 22. Usually Q is 2cc/pulse, and one pulse is 0.
It is 1 second. F is the amount of water supplied per second υ, water-injected pulp 16. Cold water tank 6゜water injection pipe 16 and water supply pipe 1
This is determined by the water supply system consisting of 7 components. Usually 20
ce/sec. H is the time from the start of extraction to the time when only water is supplied after diluted coffee is supplied.

For example, if the mixing ratio A is 26, i.e. 1:25, the consumption unit amount B
is 150 cc fsa beverage extraction amount E per 11 seconds is 1C
c/sec, the water supply amount F per second is 20 cc/sec, and the water supply only time H is 1 second, the drive pulse interval G of the concentrated beverage extraction coil 22 is calculated as It is stored in the RAM in 33.

Next, in step 45, when the user presses the brewing switch 6 of the operating section 2, the signal is input to the control circuit 24, and coffee is extracted in step 46. That is, the concentrated liquid extraction coil/V22 is driven by the number of pulses C at time DH according to the output from the control circuit 24, and extracts a certain amount of concentrated beverage liquid. At the same time, the water injection pulp 16 is driven for a certain amount of time, and a certain amount of water is injected from the tap into the cold water tank 6 through the water injection pipe 16, and due to the water pressure, the cold water in the cold water tank e is supplied from the water supply port 16 through the water supply pipe 17. . Then, the concentrated beverage liquid and cooling water are mixed and one cup of coffee (consumption unit amount) is supplied from the nozzle/I/23. The above-mentioned concentrate extracted carp/l
/22 and the control signals for the water-filled pulp 16 are shown in FIG.

In the case of the above example, a paste liquid extraction carp/l/22 is 6
．． 5J3CC of coffee concentrate is extracted by pulsing 29 times in 2 seconds. At the same time, the water injection pulp is driven for 7.2 seconds and 144.2cc of cold water is supplied to the nozzle).
One cup (160 CC) of iced coffee is supplied from v23.

As described above, according to this embodiment, the number of driving pulses C of the concentrated beverage extraction means and the driving time of the water supply means are calculated from the set mixing ratio A and the consumption unit amount B, and the number of driving pulses C of the concentrated beverage extraction means and the driving time of the water supply means are calculated. By providing an arithmetic control circuit that drives the concentrate extraction means by the number of pulses C at time DH and the water supply means by the time in response to a signal, diluted coffee is extracted for a predetermined time from the start of extraction, and for a fixed time thereafter. Only water supply will be provided. Therefore, even if the concentrated coffee liquid adheres to the nozzle part, there is a cleaning effect to ensure that it is washed away, and rot or mold does not occur due to the concentrated coffee adhered to the nozzle part.

Effects of the Invention As described above, the present invention provides a concentrated beverage reservoir, a concentrated beverage extraction means for extracting concentrated beverage from the concentrated beverage reservoir, a water supply means, and a mixing ratio of the concentrated beverage and water. a first switch for setting A; a second switch for setting a consumption unit amount B of the diluted drinking liquid of the concentrated drinking liquid and water;
The number of drive pulses C of the concentrated beverage extracting means and the pulse interval G1 and the driving time of the water supply means are calculated from the mixing ratio A set by the switch and the consumption unit amount B set by the second switch, and the concentrated liquid is extracted. It is composed of an arithmetic control circuit which drives the means by the number of pulses C at the time DH and the water supply means by the time.

Therefore, the diluted liquid is extracted for a predetermined period of time from the start of extraction, and only water is supplied for a certain period of time after that, which has a cleaning effect that ensures that even if concentrated beverage adheres to the nozzle, it will be washed away. No rotting or mold growth will occur. Therefore, it is very hygienic and has great practical effects.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a concentrated beverage dispensing device according to an embodiment of the present invention, Fig. 2 is a configuration diagram of the device, Fig. 3 is an electric circuit diagram of the device, and Fig. 4 shows the operation of the device. Flowchart showing,
FIG. 5 is an output diagram of the same device, and FIG. 6 is a flowchart showing the operation of a conventional coffee server. 5...Extraction switch, 6...Cold water tank, 16...Water supply means (water injection valve), 21.
... Concentrated beverage storage device, 22 ... Concentrated liquid extraction means, 24 ... Arithmetic control circuit, 26 ...
...first switch, 26...second switch. Name of agent: Patent attorney Shigetaka Awano and one other person Fig. Fig./6 Fig.

Claims (1)

[Scope of Claims] A concentrated beverage storage device, a concentrated beverage extraction means for extracting concentrated beverage from the concentrated beverage storage device, a tank for storing water, and a water supply device for supplying water from the tank, a first switch that sets a mixing ratio A of the concentrated beverage liquid and water; a second switch that sets a consumption unit amount B of the diluted beverage liquid of the concentrated beverage liquid and water; and a consumption unit supply amount of the diluted beverage liquid. From the mixing ratio A set by the first switch and the consumption unit amount B set by the second switch, the number of driving pulses C and pulse interval G of the concentrated beverage extracting means, and the driving time of the first water supply means are determined. D is calculated using the following formula, C=1/(
1+A)×B÷E (E: Amount of concentrated beverage extraction means per pulse of concentrated beverage extraction means) D=A/(1+A)×B÷F (F: Amount of water supplied per second of water supply means) G =(D-H)/C (H: Time for water supply only) An arithmetic control circuit that drives the concentrate extraction means by the number of pulses C at time DH and the water supply means by time D according to the input signal from the extraction switch. A concentrated beverage supply device comprising: