JPH03176399A - Beverage supplying device - Google Patents

Abstract

PURPOSE:To realize the retention of a predetermined liquid level and maintain the concentration of a mixture comprising beverage material and liquid at a predetermined level by providing a structure comprising a communicating member having a projection which enables a reservoir and a tank to communicate with each other with a valve member made open and through an exit opening, an opening and closing supply valve for controlling the supply of the liquid flowing out from a supply opening and a control circuit for operating an extraction mechanism in response to the operation of the supply valve. CONSTITUTION:A valve member 33 is assembled with an operating rod 35 fitted with a rubber member 34 urged by a spring 36 in the direction of closing an opening part 37 of the valve member 33 and adapted to be manually screwed in the exit opening 38 of a storage tank 32. After water filling, when the valve member 33 is screwed in the exit opening 38, since the opening 37 of the valve member 33 is closed with the rubber member 34 of the operating rod 35 energized by a spring, the storage tank 32 is completely sealed free from water leakage, no matter how inclined it may be or no matter how strongly it may be shaken. If the subject device is attempted to be placed on a flat surface with the valve member 33 facing downward, a wall 33a first comes in contact therewith to prevent the operating rod 35 from being depressed and, therefore, there is no water leakage from the valve member 33.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water storage type beverage dispensing machine for coffee, tea, juice, etc., which can be easily filled with water.

Conventional technology Traditionally, coffee brewers (such as the NC-1100 manufactured by Matsushita Electric Industrial Co., Ltd.) have been used to supply beverages to offices, work areas, and leisure facilities for 10 to 60 people. They boiled water and made tea, or used a home boiler (for example, NY-180H3 manufactured by Matsushita Electric Industrial) to drink cold drinks.

However, the above-mentioned beverage supply method is often carried out mainly in a kitchen, and there is a problem in that the efficiency of the original work is reduced because it is necessary to leave the workplace when drinking. In addition, placing the above-mentioned equipment in a place close to the above-mentioned workers meant that when refilling water, the workers had to carry a kettle filled with water to the workplace, which required heavy work to remove spills and remove water from the kettle. Furthermore, even if we tried to install a vending machine, we could not install one because there was no water piping and it would cost too much money to run the machine, and because there were only a small number of people, it would not be profitable to install it.

Therefore, as a method for solving these problems, a water storage type beverage dispensing machine is disclosed, for example, in Japanese Patent Publication No. 12558/1983. Generally described, the device described in this publication relates to an improved valve connection between a reservoir and a distributor so that the reservoir can be removed, water can be directly filled into the reservoir, and then returned to the distributor. A float device that operates in response to the amount of water remaining on the distribution machine side activates a valve device installed in the storage tank. The float device lowers and opens the valve device, making it possible to control the flow of water from the storage tank to the distribution machine.

Problems to be Solved by the Invention However, the above configuration requires a float device on the distribution machine side, resulting in a complicated structure. Furthermore, the float device itself is an expensive device because it uses an expensive corrosion-resistant material that does not cause food hygiene problems even when boiled at high temperatures. The enclosed float is used while floating on the water surface, and in order to move cleanly, there is a gap between it and the surrounding parts to prevent the float from hitting the surrounding parts and causing abnormal noise due to surrounding vibrations or vibrations of the equipment itself. ing. The float device and valve device that have accumulated residue have a drawback that cleaning them is time-consuming because of their complicated structure. Furthermore, according to the structure of this publication, the storage tank was an open type, and after filling it with water, it was necessary to hold the lid and carry the storage tank with both hands, which had the disadvantage of having to be carried without any hassle and without spilling water. .

In view of the above problems, the present invention eliminates the float device, achieves a constant liquid level with a simpler structure, maintains a constant mixing concentration of drinking raw materials and liquid, and eliminates the cause of abnormal noise. To provide a beverage dispensing machine which is easy to remove and clean, and which allows a filled storage tank to be carried with one hand and prevents the liquid inside from spilling even if the tank is tilted.

Means for Solving the Problems In order to solve the above problems, the beverage dispensing machine of the present invention includes an extraction mechanism for drawing out drinking ingredients, a tank for storing and cooling or heating a liquid, and an outlet for holding the liquid to be separated from the tank. a storage tank that is otherwise sealed; a valve member provided on the storage tank that normally operates in the closing direction to open and close the outlet; and a valve member provided on the lid of the tank that opens and closes the outlet in response to placement of the storage tank; a communication member having a protrusion that communicates the storage tank with the tank via the supply port; a supply valve that opens and closes the supply of liquid flowing out from the supply port; and a control circuit that operates the extraction mechanism in response to the operation of the supply valve. It is composed of

Effect: With this configuration, the storage tank can be easily removed from the tank and filled with liquid, and the storage tank is sealed while it is removed, so no matter what angle it is tilted, water will not leak out and the tank can be carried with one hand by the handle. becomes. The storage tank is communicated with the tank using a barbed valve member and a communication member with protrusions, and when air bubbles enter the storage tank, the liquid flows down from the storage tank by the volume of the air bubbles, so the liquid level in the tank is kept constant. Furthermore, there are no moving parts depending on the liquid level, making it simple (
1-4 construction can be realized. Furthermore, since the liquid level is kept constant, the liquid flow rate of the supply valve is stabilized, so that the mixed concentration with the drinking raw material is kept constant.

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

FIG. 1 is an external perspective view of a beverage dispensing machine according to an embodiment of the present invention, and FIG. 2 is a sectional view of the machine. In the figure, 1 is the main body of the beverage dispenser. 2 is an operation unit provided on the front side of the main body 1, and includes a cold/hot switching switch f3. Cooling lamp 4. Heating lamp 5. Water out lamp 6, concentrated drink out lamp 7° Extraction stop lamp 8. It has an extraction switch 9 for starting the beverage supply. 10 is a tank;
A step is provided in the center and the lower part is narrowed, and the first cooling pipe 11 is wound around the outside, and a cast metal heater 12 is connected from the outside of the bottom.
are screwed together, and 13 insulation materials are attached to these tanks 10.
It covers the first cooling pipe 11 and the heater 12. Reference numeral 14 denotes a supply port, which is provided to supply liquid from below the tank 10, and is connected via a water supply pipe 16 to a supply valve 16 that opens and closes in response to an electric signal, and further connected to a water supply (17) beyond that. 18 is a middle partition plate, which is placed in place of the above-mentioned stage of the tank 10, with holes 19 for circulating the liquid in the circumference σ, and a sludge in the center. It is.

Reference numeral 20 is a container A3 in which drinking raw materials are stored, and is a container shown in JP-A-58-216660, for example, which stores a concentrated beverage such as concentrated coffee, concentrated tea, or concentrated juice. Even a brick-shaped sterile package shown in Japanese Patent No. 59-2096004 is long. 21
is a storage, and a second cooling pipe 22 is attached to the outside, and a second heat insulating material 23 is placed around it.A320 is stored inside, and a heat insulating M23 is placed on the top. . 24 is a liquid pump that is an extraction mechanism (hereinafter referred to as liquid pump), and the inlet side is connected to a volume R92 through a tube 26.
0 to withdraw the concentrated beverage by means of an electrical signal, and the pump outlet 26 opens into a mixing nozzle 27. The mixing nozzle /1/27 is provided with a mixing outlet 28 at the bottom, and includes a pump outlet 26 and a water supply port 17, and is assembled to prevent liquid from leaking.

29 is a compressor, a condenser 30. It is installed at the lower part of the tank 1o together with a fan motor 31, and constitutes a cooling system that includes a first cooling pipe 11 and a second cooling pipe 22. 32 is a storage tank, which is placed in the tank 10.

Figure 3 is a sectional view of the storage tank 32 part of this machine.
shows a state where it is placed in the tank 10. Reference numeral 33 in the figure is a valve member material, which is assembled by pressing an actuating rod 36 equipped with a valve rubber member 34 in the direction of closing the opening 37 of the valve member 33 with a spring 36, and is assembled to the outlet 38 of the storage tank 32. It's locked in. 33a is a wall projecting longer than the operating rod 36. A handle 39 is provided on one side of the storage tank 32, and the storage tank 32 is sealed except for the outlet 38. 4o is a communication member, which is recessed so that the valve member 33 can be inserted therein, has a protrusion 41 in the center that comes into contact with the operating rod 36, has a communication port 42 around it, and is provided in the lid 43 of the tank 1o. ing.

Next, the electric circuit diagram of this machine shown in FIG. 4 will be explained.

44 is a commercial 111 power supply, and 46 is a power switch, which is installed at the base of each electrical component through a current fuse 46. 3 is a cold mud changeover switch,
4, and on the (cold) terminal side, a cooling lamp 4 and a thermostat 1 (47) that detects the temperature of the tank 10 are connected to a solenoid valve 1 (48) and a relay 1 (82). connected, and a heating lamp 5 is connected to the (warm) terminal side.
The heater 12 is connected to the main body via a bimetal/l/49 that detects the temperature of the tank 10 and a temperature fuse 6o that prevents the temperature of the heater 12 from rising excessively. Further, from the common terminal side of the cold/hot/off switch 3, a thermostatic valve 2 (63) and a relay 2 (64) are connected in parallel via a thermostat 2 (51) that detects the temperature of the storage compartment 21. connected, contact 66 of relay 1 (62) and relay 2 (6
The compressor 29 and the fan motor 31 are connected in parallel to the trunk via the contact 66 of 4), and the primary side of the power supply tranne 52 is also connected. power supply tranne 62
A control circuit 64 composed of a microcomputer 53 and peripheral circuits is connected to the secondary side of the control circuit 64 . The control circuit 54 has as an input an extraction switch 9. tank 1
A water level sensor 66 that detects the water level of °, a photosensor 66 that detects when the tube 26 is out of concentrated drink, a water temperature sensor 67 that detects the water temperature of the tank 1o, and a tube 25 that detects the temperature of the condensed drink in the container 20. The temperature sensor 68 has a button and a supply valve 16 as an output. Liquid pump 24. There is one water drain lamp 6.74, a primary liquid drain run 7, and an extraction stop run 8.

Next, the cooling system diagram shown in FIG. 6 will be explained.

29j′i compressor is connected to the condensate 30 which is air-cooled by the fan motor 31, and is connected to the cooling vibe 22 of @2 via the electromagnetic valve 2 (63) and the second capillary 59, l, [
The magnetic valve 1 (4B) and the first cooling vibe 11 are connected in parallel via the first capillary 6°, and are connected to the compressor 29 via the liquid receiver gus1.

The operation of the beverage dispensing machine configured as described above will be described below.

The tank 10 of this machine is already filled with water and the power switch 4 is turned on.
The explanation will be given assuming that 6 is also turned on. The entire reservoir 32 with the valve member 33 tightened is removed as one unit and carried by the handle 39 at the appropriate water outlet 1, where it is filled with water. At this time ffP4'
! Even if the container 32 is filled with water with the outlet 38 facing upward, it is sealed except for the outlet and will not leak. When the valve member 33 is tightened into the outlet 38 after filling with water, the actuating rod 3 biased by the spring 36
The valve member 3 is connected to the valve member 3 by the rubber member 34 provided in
Since the opening 37 of No. 3 is closed, the storage tank 32 is completely sealed and will not leak water no matter how tilted or shaken it is. Even if the housing 7717 member 33 is placed on a flat surface, the actuating rod 36 will not be pressed down and water will not leak from the valve member 33 because the 7717 member 33 hits first. The reservoir F32 filled with water is returned to the main body 1, placed on the tank 10, and positioned so that the valve member 33 is inserted into the recess of the communication member 40, which is the operating position. The actuation rod 36 is pushed up by the protrusion 41 and the valve member 33
When the opening 37 of the tank 10 is opened, the storage tank 32 and the tank 10 communicate with each other through the outlet 38. Therefore, if there is a gap between the opening 37 and the water level of the tank 10, the water in the storage tank 32 will be filled with air. Water flows down by the volume that becomes bubbles and enters the storage tank 32. As a result, the water level in the tank 10 is stabilized at the lowest position of the opening 37. Next, the circuit operation will be explained. At this point, the power switch 46 has already been turned on, and as shown in FIG. ) and relay 2 (64) are activated, the compressor 29 is activated by the relay 2 contact 66 in synchronization with this.
and the fan motor 31 are turned on and off to control the temperature to a desired temperature, for example, 4°C ± 2°C. Since the control circuit 64 is energized to the transformer 52 while the power switch 46 is on, each input/output element is micro-controlled. Detection, switching on and off are performed according to the procedures of the computer 63, and production is performed. Further, as shown in FIG. 4, it is assumed that the cold/warm/drink switch 3 is set to the (cold) side. During this cooling, Lande 4 lights up, solenoid valve 1 (48) and relay 1 (e2) are turned on and off by thermostat 1 (47), and in synchronization with this, relay 1 contact α65 turns on compressor 29 and fan motor 31. As a result, the temperature of the water in the tank 10 is controlled to a desired temperature, for example, 6°C±3°C. Therefore, as shown in the cooling system diagram of FIG.
By opening the electromagnetic valve 1 (4B) synchronized with Thermo Nut 1 (47), the first cooling vibe 11 provided in the tank 10 opens electromagnetic valve 2 (63) synchronized with Thermo Nut 1 (47). Due to the unbalance of the refrigerant flow rate in the cooling system, the compressor 2 is independently cooled and controlled.
When the liquid refrigerant is returned to the cooling system 9, the receiving tv:e1 becomes a liquid reservoir and returns only the upper gaseous refrigerant to the compressor 29, thereby preventing failure of the Balanne compressor 29 of the cooling system.

Next, we will explain the beverage (JI) supply operation. First, the basic operation is to control the supply valve 16 and the liquid pump 24 for a predetermined period of time by manually turning on the extraction switch 9. A signal is output from the circuit 54.This means that when a cup is placed under the mixing outlet 28 of the main body 1 and the extraction switch 9 is pressed, the concentrated beverage in the container 20 is pumped into the mixing nozzle 27 by the operation of the liquid pump 24 for a predetermined period of time. At the same time, a predetermined amount of cooled water in the tank 10 is caused to flow down into the mixing nozzle 27 by a predetermined time di/1 operation of the supply valve 16, and a predetermined mixing ratio of the beverage is produced. is poured into the cup by a predetermined amount J11.The water level sensor 65 detects when the water level has fallen below the full level of the tank 10, and when the water in the storage tank 32 runs out, the water level in the tank 10 drops. So control circuit 6
At this time, the drain lamp 60Q and the extraction stop lamp 8 are turned on, and control is performed in such a manner that the beverage is not supplied even if the extraction switch 9 is pressed. The photo sensor 66 detects the state in which the concentrated beverage comes out into the tube 26 and the straining tube 25 is empty, and at this time the control circuit 54 turns on the concentrated beverage side lamp 7 and the extraction stop lamp 8, and stops the extraction. Control is performed so that the drink is not supplied even if the switch 9 is pressed. The water temperature sensor 67 indicates that the water temperature in the tank 10 is not cold (for example, 1
5℃ or higher) or not warmed up (for example, 60''C or lower), while the crystallinity senna 58 also detects r,'ar
A'L6 A state in which the beverage is not cold (for example, 13 degrees or more) is detected, and regardless of which event occurs, the control circuit 54 turns on the extraction stop lamp 8 and does not supply the beverage even if the extraction switch 9 is pressed. control. Also temperature sensor 5
The microcomputer 63 counts the waiting time at 800 degrees, and when it reaches a predetermined 11.7 hours (for example, 48 hours), the extraction becomes permanent and the extraction stop lamp 8 is turned on.
φJ, turn off the reset switch (not shown), and the reset switch (not shown) will not output 1. A case will be explained in which the selector switch 3 is set to the (warm) side.At this time, the heating lamp 6 lights up, and the heater 12 is turned on and off by the bimetal 49 that detects the temperature of the tank 1°, and the temperature of the fruit storage tank is turned on and off. 10
The temperature of the water inside is controlled to a desired temperature, for example, 86°C±5°C. If for some reason the tank 10 is in an empty state and the temperature of the heater 12 rises excessively, for example, if the temperature exceeds 160° C., the temperature fuse 50 will be disconnected and the heater 12 will be energized. On the other hand, as mentioned above, the cooling control of the storage 21 is (
The operation of the control circuit 64 continues as described above. In addition, the water being heated tries to move to the upper part of the tank 10, but this is blocked by the partition plate 1.
Even if the water in the storage tank 32 is frequently replenished, the lower layer of the partition plate 18 has a higher temperature, and even if the supply port 14 is at the bottom of the tank 10, high-temperature water is supplied. The partition plate 18 is simply attached to the stage of the tank 10 and can be easily removed. On the other hand, the water being cooled in the tank 1o moves to the tank 1o, and since the supply port 14 is located at the bottom of the tank 10, even if the water in the storage tank 32 is frequently replenished, the water is always cold. Water is supplied from the supply port 14 at the bottom, and water at a stable temperature can be supplied.

As described above, according to this embodiment, the spring 36 is attached to the outlet 38 of the tank 32, which is sealed except for the outlet 38, in the natural state.
Since the valve member 33 that is pressed in the closing direction is tightened by Il'? Water does not leak even when filled with water with the outlet of the dandelion 32 facing upward, and no matter what position the storage tank 32 is in after the valve part (No. 33) is tightened, water does not leak, so the handle 39 You can hold it and carry it with one hand.

Furthermore, even if the valve member 33 is placed down on a flat surface by u/4, no matter how jIQ it is placed, it will not fall over the iceberg and can be placed with confidence. Since the communication member 40 is recessed so that the valve member 33 can fit into the reed of the tank 10, it is easy for the samurai to position the storage tank 32, and the water in the placed storage tank 32 is transferred to the tank 10. When cooling, it is easy to conduct heat and heat. Samurai is preheated, so it is necessary to cool the supplemented water.
Heating speed can be fast. The actuating rod 36 is pushed up by the protrusion 41 of the communication member 40, and the F'j cylinder 32 and the tank 1 are
0, and in this state, water naturally flows down by the amount of the water level drop, so when the cooling iM is turned on, this storage (+jJ The generation of abnormal noise from the floating part due to vibration can be prevented.Furthermore, due to the structure of the valve member 33 and the communication member 40, there is no floating part as mentioned above, resulting in a simple structure, making cleaning easy and keeping the water level in the tank 1o constant. Since the water flow rate of the supply valve 16 is stabilized, the mixed concentration of pus, reduced fluid, and water can be maintained constant.Furthermore, the cold/hot switching Nuiso f3 and the circuit (I' in Fig. 4) can be maintained constant. 4 configuration, cooling and heating of the water in the tank 10 can be done in one click by simply switching the cold/hot selector switch 3, and the supply of chilled drinks or hot drinks can be realized with this main unit. Cooling of the water in the tank 10 Or, regardless of the heating operation, the inside of the storage compartment 21 is independently cooled and controlled.
Concentrated drink can be stored for a long time. Furthermore, even during cooling, the storage chamber 21 and tank 10 are cooled at two independent temperatures, so the temperature suitable for the concentrated beverage and supply water can be selected, achieving the optimal temperature for the concentrated beverage. The water temperature can be adjusted to the resident's preference.

Beverage O1: Press the - button on the extraction switch 9 to dispense the predetermined 1
Beverage with a predetermined mixing ratio of 1 can be supplied.Furthermore, since a water level sensor 65 and a photosensor 66 for detecting empty concentrated beverages are installed to control extraction to stop when the raw material runs out, it is possible to always supply a homogeneous beverage. A water temperature sensor 67 and a concentrated beverage temperature sensor 68 are installed to control extraction stop when the water temperature is not appropriate or the concentrated beverage temperature is abnormal.
It is possible to always supply beverages at the optimum /r: degree, and it is also possible to detect storage abnormalities in concentrated beverages. Even if the storage temperature of the concentrated beverage returns to its original value, the microcomputer 53 counts the four regular periods (4), thereby preventing the supply of spoiled beverage.

In this example, Yong M? Although the stored contents of R2O are concentrated beverages, the present invention is not limited to this, and it is not limited to instant powder, milled powder, or sugar. Further, although the brewing switch 9 is configured to dispense a predetermined amount of beverage h'c by pressing it once, the mixed beverage may be dispensed as long as the brewing switch 9 is pressed.

Effects of the Invention As described above, the present invention provides an extractor 11 for extracting drinking raw materials.
6, a tank for storing and cooling or heating a liquid, a storage tank for holding the liquid to be separated from the tank and being sealed except for the outlet, and a valve provided in the storage tank and normally operating in the closing direction to open and close the outlet. a communication member that is provided on the lid of the tank and has a protrusion that opens the valve member when the storage tank is placed thereon and communicates the storage tank with the tank via the outlet; a supply valve that opens and closes the supply of liquid; It is composed of a control circuit that operates the supply nozzle and an extraction mechanism on the bottom side. Therefore, since the storage tank is sealed except for the outlet, water will not leak even if it is filled with water with the outlet facing upward.After the valve member is attached to the outlet, the storage tank will be sealed and will not leak water no matter what position it is in. Therefore, it can be carried with one hand.

-Also, the storage tank is communicated with the tank, and the liquid in the storage tank has a gas gap between the opening of the valve member and the liquid level in the tank; I! !
(Because it flows down naturally, the liquid level in the tank can be kept constant and the mixed concentration of drinking ingredients and liquid can be kept constant. It also has a simple structure, and there are no floating or moving structures, so it is not caused by vibrations.) The cause of abnormal noise can be eliminated, and since it is simple, both the communication member and the valve member can be easily cleaned.

In addition, the liquid was cooled and supplied to the supply l provided at the bottom of the tank, and the liquid in the storage tank was made to flow down from the top of the 1111 tank, so the cooled liquid moved to the bottom of the tank. However, even if the liquid in the storage tank suddenly flows in, a cooled liquid can always be supplied. Furthermore, since the storage container (1) is placed on the lid of the tank, the liquid in the storage tank can be pre-cooled and the cooling rate of the liquid can be increased.

In addition, the liquid is heated and a partition plate is installed in the tank to supply it to the supply port provided at the bottom of the tank, and the liquid in the storage tank is made to flow down from the top of the tank, so that the liquid being heated is tries to move to the upper part of the tank, but is blocked by the partition plate, so even if the liquid in the storage tank is frequently replenished, the temperature below the partition plate can be higher.
High-temperature liquid can always be supplied even if the supply port is (1). Since the storage tank is placed on the lid of the tank, the liquid in the storage tank can be preheated and the heating rate of the liquid can be increased. .

Furthermore, when supplying beverages, press the - button on the extraction button to set the predetermined 4
．． Beverages with a predetermined mixing ratio of 1 can be supplied.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a beverage dispensing machine according to an embodiment of the present invention;
Figure 2 is a cross-sectional view of the aircraft, Figure 3 is an enlarged cross-sectional view of the aircraft, Figure 4 is an electrical circuit diagram of the aircraft, and Figure 6 is a diagram of the cooling system of the aircraft. 10... Tank, 14... Supply port, 1
6... Supply valve, 18... Partition plate, 19... Hole, 24... Extraction mechanism, 3
2...Storage tank, 33...Valve member, 3
4...Rubber member, 35...Operating body, 3
6... Spring, 37... Opening, 38...
...Exit, 40...Communication member, 41...
... Protrusion, 42 ... Distribution port, 54 ...
...Control circuit.

Claims (5)

[Claims] (1) An extraction mechanism that draws out a predetermined amount of drinking raw materials, a tank that contains liquid and is provided with a supply port, a storage tank that holds liquid and is sealed except for the outlet, and the outlet that is provided in the storage tank and operates in the normal closing direction. a valve member that opens and closes; a communication member that is provided on the tank and opens the valve member in response to placement of the storage tank and communicates the storage tank with the tank via the outlet; A beverage dispensing machine comprising a supply valve that opens and closes the supply of liquid, and a control circuit that operates the extraction mechanism in response to the operation of the supply valve. (2) The beverage according to claim 1, comprising a cooling tank that accommodates and cools a liquid and has a supply port at the bottom, and a communication member provided on the lid of the cooling tank and arranged at the top of the cooling tank. feeding machine. (3) A heating tank that accommodates and heats a liquid and has a supply port at the bottom, and a partition plate that is removably installed in the heating tank and has holes that divide the upper and lower parts of the heating tank into two and allow the upper and lower liquids to flow through each other. 2. The beverage dispensing machine according to claim 1, further comprising: a communication member provided on a lid of a heating tank and placed above the heating tank. (4) A valve member having an actuating rod equipped with a rubber member pressed in the direction of closing the opening by a spring, and a protrusion that receives the valve member and comes into contact with the actuating rod, and opens a liquid flow port around the valve member. The beverage dispensing machine according to claim 1, comprising a communicating member. (5) an extraction switch that starts supplying a beverage; the supply valve that is activated by an electric signal; the extraction mechanism that is activated by an electric signal; 2. The beverage dispensing machine according to claim 1, comprising a control circuit that operates only for a certain period of time.