JPH0799552B2 - Water supply device for cup type vending machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for a cup type vending machine that sells hot and cold beverages.

2. Description of the Related Art In recent years, cup-type vending machines save space and provide soft drinks,
With the increase in flavors of powdered beverages, so-called hot and cold cup type vending machines that provide both cold and hot beverages have been developed.

Conventionally, the water supply device of this type of cup type vending machine has a structure as shown in FIG. 2, for example.

In FIG. 2, reference numeral 1 is a cistern supplied from the water supply 2 through the water supply valve 3. Two water supply pipes are connected from this cistern 1, one of which is an ice making machine 4
Ice machine water supply pipe 6 for connecting and supplying water to the water supply section 5 of
And the other is a cold water supply pipe 11 that is piped through the pump 7a, the cooling coil 8, and the three-way valve 9 to the cup pouring portion 10. Reference numeral 12 denotes a syrup supply pipe, which is piped from a syrup tank 13 through a syrup valve 14 to the cup pouring part 10. Reference numeral 15 is a carbonated water supply pipe, which branches from the cold water supply pipe 11 via the three-way valve 9 and is piped to the cup pouring part 10 via a carbonator 16 and a carbonated water valve 17.

A cold beverage cup 18 and a hot beverage cup 19 delivered by a cup supply device (not shown) are placed on the cup pouring unit 10. As is well known, the ice making machine 4 is
It is composed of an ice making unit 4a containing an evaporator, an auger, etc. as an ice making device for the inner surface of a cylinder, and an ice storage unit 4b for storing the ice made by the ice making unit 4a. And the ice making section 4a
A water inlet 5a and a water outlet 5b are provided in the water supply section 5 below
The water inlet 5a is connected to the melted water inlet 4c of the ice storage section 4b by an ice making machine water supply pipe 6, and the water outlet 5b is connected to a cold water supply pipe 11.
Is connected to the three-way joint 29. Reference numeral 22 is a hot water tank in which a heater 22a and a water level control device 22b are provided. The hot water tank 22 is provided with a hot water supply valve 23, and a hot water pipe 26 is connected to the mixing device 25 for stirring and mixing the powder raw material sent from the powder raw material supply device 24 and the hot water supplied from the hot water supply valve 23. ing. Further, the mixing device 25
The hot beverage prepared in (1) is piped by a hot beverage pipe 27 for leading to the cup pouring part 10. On the other hand, water is supplied to the hot water tank 22 from the water supply 2 through the water supply valve 30 and the hot water tank supply pipe 31.

Problems to be Solved by the Invention However, with such a structure, when cold beverages in the summer sell relatively well, the water supply unit 5 of the ice maker 4 does not flow for a long time and stays stagnate. However, if cold drinks in winter are relatively unsold, there is a chance that water will not flow in the water supply section 5 of the ice maker 4 for a long time and may remain stagnant. As described above, if the water remains stagnant for a long time, a few microorganisms and various bacteria contained in the tap water are likely to propagate, and the water quality deteriorates, which may be unsuitable for drinking. The stagnation of water in these winters is due to the following reasons.

That is, the water supplied to the hot water tank 22 is supplied to the tap water 2 directly through the water supply valve 30, and the pump 7a does not operate unless the cold beverage is sold in the winter, and the water supply unit 5 of the ice maker 4 is supplied.
The water was stagnation.

Therefore, the present invention prevents the water from stagnating in the water supply section of the ice maker even if the chances of selling cold drinks in the winter are reduced, and it is possible to provide a cold drink suitable for drinking over four seasons. .

Means for Solving the Problems In order to achieve this object, a water supply device of a cup-type vending machine according to the present invention has a cistern for receiving water from a water source and temporarily storing the water, and supplying water from the cisturn to a cooling coil. A pump and an ice maker that receives water from the cistern to make ice, and a water inlet and a water outlet provided opposite to the side wall of the water supply part of the ice maker, and one end of which is connected to the cistern. An ice machine water supply pipe having the other end connected to the water inlet of the water supply unit, a second pump connected to the water outlet of the water supply unit via a pump water supply pipe, and one end connected to the second pump. A hot water tank supply pipe having the other end opened into the hot water tank.

Action The action of this technical means is as follows.

That is, the water supplied to the hot water tank is supplied from the water supply unit of the ice maker by the second pump to sell the hot beverage, and is supplied to the hot water tank each time the hot drink is sold, and the water supply unit of the ice maker is supplied. The water will not stagnate for a long time.

Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. The same components as those of the conventional art will be designated by the same reference numerals and detailed description thereof will be omitted.

In FIG. 1, reference numeral 1 is a cistern supplied from a water supply 2 through a water supply valve 3. Two pipes for water supply are connected from this cistern, and 7 is the first pump,
It is arranged in a cold water supply pipe 11 which is piped through a cooling coil 8 and a three-way valve 9 to a cup pouring portion 10. Also, ice machine 4
The water outlet 5b is connected to the inlet side 20a of the second pump 20 by a pump water supply pipe 21. Further, the second pump 20
Outlet side 20b up to the hot water tank 22
Are connected by.

In the above structure, the normal ice maker 4 receives water from the cistern 1 through the ice maker water supply pipe 6, and the ice maker 4 always stores the ice maker in the ice storage section 4b. When a sales command is given from this, either cold or hot beverages are mixed according to a predetermined program and poured into either the cold beverage cup 18 or the hot beverage cup 19 of the cup pouring section 10.

Next, the operation of the configuration of this embodiment will be described. First, the operation of the cold beverage system will be described. When the syrup valve 14 is opened, the syrup flows out of the syrup tank 13 and is supplied to the cup pouring part 10 through the syrup supply pipe 12. At the same time, when the first pump 7 is started, the syrup dilution water cooled by opening the three-way valve 9 is supplied to the cup pouring portion 10 through the cold water supply pipe 11.

Further, the carbonated water valve 17 is opened according to the selection of the product, carbonated water is supplied through the carbonated water supply pipe 15, and further ice is supplied from the ice making machine 4 to the cup water injection device 10.

Next, the operation of the hot beverage system will be described.
When 24 is started, the powder raw material is supplied to the mixing device 25, and at the same time, by opening the hot water supply valve 23, hot water is supplied to the mixing device 25 through the hot water pipe 26. The hot beverage prepared by the mixing device 25 is supplied to the cup pouring part 10 through the hot beverage pipe 27. When the hot beverage is sold several times, the water level in the hot water tank 22 decreases, and the water level control device 22b detects the low water level and the second pump 2
When 0 is started and water is supplied to the hot water tank 22 from the cistern 1 through the ice making machine water supply pipe 6, the pump water supply pipe 21, and the hot water tank supply pipe 28 until the preset water level is reached, the water level control device 22b Upon detection, the second pump 20 is stopped and the water supply is stopped.

As a result, the hot water tank 22
Since the water is supplied by the second pump 20, the water in the water supply section 5 of the ice making machine 4 flows each time it is sold, and does not become stagnant for a long time. Also, in the summer when hot beverages are relatively unsold, cold beverages are often sold, so the ice maker 4 will inevitably run for a long time, and the stored ice will be carried out by a predetermined amount each time it is sold, and eventually the ice storage amount will decrease. When the amount of water decreases and falls below a predetermined level, ice-making is restarted, so that the water in the water supply unit 5 is used for making ice each time the ice-making is performed, so that it does not stay for a long time.

Advantageous Effects of the Invention The present invention provides a cistern that receives water from a water source and temporarily stores the water, a pump that receives water from the cistern and supplies it to a cooling coil, an ice making machine that receives water from the cistern and makes ice, and the ice making machine. By providing a hot water tank supply pipe for supplying water to the hot water tank through the water supply section of, the water supplied from the cistern by the operation of the ice maker in the summer becomes ice sequentially, and the water in the water supply section of the ice maker is In addition to preventing stagnation, in winter, water is supplied from the cistern and supplied to the hot water tank via the water supply section of the ice maker, so that water stagnation in the water supply section of the ice maker is prevented as in summer. . As a result, the water supply unit of the ice maker can provide water suitable for drinking for four seasons, in which the growth of microorganisms and various bacteria contained in tap water is suppressed.

[Brief description of drawings]

FIG. 1 is a fluid system diagram of a water supply device for a cup type vending machine according to an embodiment of the present invention, and FIG. 2 is a fluid system diagram of a water supply device for a conventional cup type vending machine. 1 ... Sistern, 2 ... Water, 4 ... Ice machine, 5 ...
Water supply section, 7 ... first pump, 8 ... cooling coil, 20 ...
… Second pump, 22 …… Hot water tank.

Claims (1)

[Claims] 1. An ice making machine, comprising: a cistern for receiving water from a water source to temporarily store water, a pump for receiving water from the cisturn and supplying it to a cooling coil, and an ice making machine for receiving water from the cistern and making ice. Water inlet and water outlet provided opposite to each other on the side wall of the water supply unit of the machine, an ice maker water supply pipe having one end connected to the cistern and the other end connected to the water inlet of the water supply unit, and a pump water supply pipe. Of a cup-type vending machine equipped with a second pump connected to the water outlet of the water supply unit, and a hot water tank supply pipe having one end connected to the second pump and the other end opening into the hot water tank. Water supply device.