JPH03206598A - Fresh brew type automatic coffee vending machine - Google Patents

Abstract

PURPOSE:To clean even a stain attached on the inside of a diffuser completely and to always keep the whole of the inside sanitarily by arranging by interposing an electromagnetic valve at a coffee supply tube at a downstream side than the diffuser. CONSTITUTION:A drink system extending from an extractor 5 to a drink pipe 15 is cleaned with the hot water of a hot water tub 2 and the cleaning water of a cleaning liquid tank 7 with an appropriate cycle. At such a case, since the electromagnetic valve 9 of the coffee supply tube 11 is closed once, the hot water and the cleaning water stays in the diffuser 8 and cleans the inside of the diffuser, and also, coffee and the stain, etc., attached on the inside of the diffuser can be effectively melted and cleaned by heating the cleaning water with the heater of the diffuser 8. After that, the electromagnetic valve 9 is opened and the hot water and the cleaning water are discharged, and furthermore, new hot water and cleaning water are sent to the diffuser 8, then, the diffuser 8 is cleaned. In such a way, the whole of the internal surface of the diffuser can be extremely cleaned sanitarily.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention extracts coffee from a mixture of coffee raw materials and hot water using an extractor, adds sugar cream, etc. to this coffee, and stirs it using a mixing device to produce a coffee beverage. This invention relates to a fresh-brew coffee vending machine that prepares fresh-brew coffee.

[Conventional technology]

(1) This type of coffee vending machine generally extracts coffee by sending pressurized air into the extraction cylinder of the extractor containing a mixture of coffee raw materials and hot water, and also pumps the coffee. Be taken. On the way to the mixing device, this coffee is slowed down to a flow rate suitable for mixing and heated by a diffuser with a heater. Then, cream, sugar, and other seasoning ingredients are added and stirred and mixed in a ξ-kissing device to prepare a coffee beverage.

This coffee beverage is poured into a cup on the pen stage and sold. The coffee vending machine is cleaned at appropriate intervals to keep the beverage system clean, and cleaning water is fed into the diffuser to clean it.

[Problem to be solved by the invention]

By the way, conventional coffee vending machines have a drawback that when cleaning the diffuser, the cleaning water sent into the diffuser passes through the diffuser all at once, making it difficult to sufficiently clean the inside surface of the diffuser.

(2) An object of the present invention is to provide a fresh-brew coffee vending machine whose diffuser can be reliably and sufficiently cleaned during cleaning.

[Means to solve the problem]

In order to achieve the above object, in the fresh brew type coffee vending machine of the present invention, coffee extracted from a mixture of coffee raw materials and hot water by an extractor is decelerated and heated by a diffuser equipped with a heater. In the fresh-pull vending machine that adds seasoning ingredients such as sugar to the coffee and sends the mixture to a mixing device, a solenoid valve is inserted into the coffee supply pipe downstream of the diffuser.

[Effect]

By closing the solenoid valve during cleaning and allowing the cleaning water to temporarily stay in the diffuser, the interior surface of the diffuser can be thoroughly cleaned and coffee adhering to the interior surface can be dissolved and washed away. Therefore, the diffuser is reliably cleaned.

〔Example〕

(3) An embodiment of the invention will be described based on FIG.

In the figure, ■ is a raw material box that stores powdered coffee raw materials and is equipped with a quantitative delivery mechanism at the bottom, 2 is a hot water tank that always stores a predetermined amount of hot water, and 3A and 3B are raw material boxes that store cream and sugar, respectively. . 5 is a cylindrical extraction cylinder 5;
A valve 52 and a bottom block 53 are arranged above and below the extraction cylinder 51 so as to be movable up and down, an air pump 54 feeds pressurized air into the extraction cylinder 51, and a coffee sales system is sandwiched between the extraction cylinder 51 and the bottom block 53. The extractor is constituted by a rolled paper filter 55 that is fed one pitch at a time. 6 is a mixing device, 7 is a cleaning liquid tank, 8 is a diffuser with a heater, 9 is a solenoid valve provided in the coffee supply pipe 11 that guides coffee from the diffuser 8 to the mixing device 6, and 12 is a pend stage from which the cup 13 is taken out. be.

In the coffee vending machine, a certain amount of raw material and hot water are supplied from the raw material box 1 and hot water tank 2 to the extraction cylinder 51 in response to a sales signal. Pressurized air is then sent from the air (4) pump 54 to the extraction cylinder 51, and coffee is extracted from the mixture of raw materials and hot water into the bottom block 53 through the paper filter 55. This coffee is sent to the diffuser 8 through the coffee supply pipe 10 together with the pressurized air. Then, the flow rate is reduced by a diffuser to an appropriate flow rate for mixing, heated to an appropriate temperature, and sent to the mixing device 6. Ingredient box 3A is added to this coffee according to the customer's taste. Cream and sugar supplied from 3B are added and stirred to prepare a coffee drink. This coffee beverage is passed through the beverage pipe 15 to the bend stage 1.
The liquid is poured into the cup 13 on top of the cup 2 and served to the customer.

On the other hand, the beverage system from the extractor 5 to the beverage pipe 15 for preparing a coffee beverage is cleaned with hot water from the hot water tank 2 and cleaning water from the cleaning liquid tank 7 at appropriate intervals. In this case, the solenoid valve 9 of the coffee supply pipe 11 is temporarily closed. Thus, the warm water and cleaning water stay in the diffuser 8 and clean the inner surface of the diffuser, and the diffuser 8
(5) By heating the washing water in the evening, coffee, dirt, etc. attached to the inner surface of the diffuser are effectively dissolved and removed. Thereafter, the electromagnetic valve 9 is opened to discharge the hot water and cleaning water, and new hot water and cleaning water are sent to the diffuser 8 to clean the diffuser 8. Therefore, the entire inner surface of the diffuser 8 is cleaned extremely cleanly.

〔Effect of the invention〕

According to this invention, coffee extracted from a mixture of coffee raw materials and hot water by an extractor is decelerated and heated by a diffuser with a heater midway through, and seasoning raw materials such as sugar are added to the coffee and stirred. ξIn a fresh brew type vending machine that feeds coffee to a kissing device, a solenoid valve is inserted and installed in the coffee supply pipe downstream of the diffuser, so that the diffuser can be cleaned of dirt adhering to its inner surface, and the entire inner surface is cleaned. Always kept sanitary.

[Brief explanation of drawings]

FIG. 1 is a beverage system diagram of a Fresh Br (6) Liu-type coffee vending machine showing an embodiment of the present invention. 1... Raw material box, 2... Hot water tank, 3A... Raw material box for cream, 3B... Raw material box for sugar, 5... Extractor,
6... Mixing device, 8... Diffuser, 9...
...Solenoid valve, (7)

Claims (1)

[Claims] 1) Coffee extracted from a mixture of coffee raw materials and hot water by an extractor is decelerated and heated by a diffuser with a heater midway through, and is sent to a mixing device that adds seasoning materials such as sugar to the coffee and stirs it. A fresh-brew coffee vending machine, characterized in that a solenoid valve is inserted and installed in the coffee supply pipe downstream of the diffuser.