JPS62182897A - Extraction filter for vending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is not a simple method of cooking in which raw material powder is dissolved in hot water and dispensed, but a mixed solution of raw material powder and hot water is filtered through a filter to obtain an extract. This invention relates to a vending machine that dispenses cooking methods.

Conventional technologyVending machines that use this type of cooking method include:
One example is a vending machine designed to over-extract a mixture of ground coffee and hot water.

The extraction filtration device of this coffee vending machine is shown in Figures 4 to 6.
It is configured as shown in the figure. A filtrate receiver (2) is installed below the extraction chamber main body (1) so as to be able to move up and down, and a wrapping body (
A strip-shaped filler (4) pulled out from the container (3) is hung.

In the filtration process, the filtrate receiver (2) is raised and pressed against the lower opening (5) of the extraction chamber main body (1), and then the extraction chamber separated by the partition wall (6) is removed. Coffee powder and hot water are put into the upper chamber (7) of the upper chamber (7) and lower chamber (8) of the main body (1). Here, the upper chamber (force) and the lower chamber (8
) and the metal oil are closed by a valve body aO which is biased downward by a compression spring αO, and the mixed liquid of coffee powder and hot water (2) flows into the upper chamber (7). Retained. In this state, when pressurized air at atmospheric temperature is blown into the air supply port of the lower chamber (8) and pressurized, the pressure inside the lower chamber (8) increases, and due to this pressurization, the valve body 0η is compressed. The air rises slightly against the spring noise and escapes from the chamber (8) to the upper chamber (7), stirring the mixed liquid (6). When the stirring is finished, the valve body a
η is opened to allow the mixed liquid (2) to flow down into the lower chamber (8), and from now on, pressurized air at atmospheric temperature is supplied from the air supply port U under conditions that prevent pressurized air from leaking from the valve body Ql). Inject and pressurize. In the system shown in Figure 5, the mixed liquid □□□ in the lower chamber (8) is forcibly filtered by the pressure difference between the extraction chamber side and the filtrate receiver side of the filter (4), and the coffee in the mixed liquid 4 is forcibly filtered. The hot water component containing the dissolved extract passes through the filter (4), flows into the downstream passage α4 together with the pressurized air, and is pushed out by the pressurized air.

When the extrusion of the hot water component into which the coffee extract has been dissolved is completed, the filtrate receiver (2) Th li+ is lowered to form a band-shaped filter (4) with the extracted coffee powder adhering to the center as shown in Figure 6. Drive roller α0 and pinch roller aη
The rice feces portion is held under the extraction chamber main body (1) and transferred at a predetermined pitch. (to) represents a motor that rotationally drives the drive roller OQ.

Problems to be Solved by the Invention In the conventional configuration, when lowering the filtrate receiver (2) of the extraction filtration device in the state shown in FIG. Inside the main body (1).

Since the pressure is higher in the filtrate receiver (2), leave it as it is.
) is lowered, the belt-shaped filter (4) is removed from the gap between the bottom opening (5) of the extraction chamber body (1) and the belt-shaped filter (4).
A part of the extracted coffee powder (g) on the top (4) will squirt out,
Contaminates the inside of the vending machine.

Therefore, conventionally, one end of the solenoid valve (3) is connected to the piping route between the compressor wire that sends all the pressurized air to the air supply port (to) and the air supply port α1, and the solenoid valve (2) is The upper end of the other end is opened to the atmosphere, and the 11L magnetic valve Vυ is opened to release back pressure before the filtrate receiver (2) is lowered. However, this configuration requires a solenoid valve 3η.

The object of the present invention is to provide an extraction filtration device that can perform back pressure relief when used for the TAT valve as described above.

Means for Solving the Problems In the extraction filtration device of the present invention, the filler and the extraction chamber main body are moved relative to each other, the bottom opening of the extraction chamber main body is covered with the pressed filler, and the valve body is The raw material powder and the vortex are introduced through the upper communication hole of the extraction chamber body having 4. By forcibly filtering the mixed liquid of raw material powder and hot water, and removing the filter from the lower opening of the extraction chamber main body, the driving means for the valve body is removed.
It is characterized in that the upper communication hole of the extraction chamber main body is opened in advance.

According to this configuration, the valve body that opens and closes the upper communication hole of the extraction chamber main body is fully opened to release back pressure, and then the contact state between the lower opening of the extraction chamber main body and the filter is released.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3. Components having the same functions as those shown in FIGS. 4 to 6 are designated by the same reference numerals, and their explanations will be omitted.

2 and 3 show the coffee extraction and filtration apparatus of the present invention.

The extraction chamber body (1) is fixed to the drive device body 4.

The tape/L' (2) that supports the filtrate receiver (2) so as to be movable up and down with respect to the extraction chamber main body (1) is also attached to the drive device main body (
2) is fixed.

The drive device main body (2) is provided with first and second geared motors O16υ as power sources, and the first geared motor (to) is connected to the first geared motor O16υ mounted on the shaft (2).
Valve body 0 via the cam body (material) and the second cam body (to)
The receiver has the functions of opening and closing 1) and raising and lowering the filtrate receiver (2), and the receiver has the rotational drive of the drive loaf Qft of the second geared motor a. (Incorporated) is a transmission lever that transmits the shape of the cam surface of the second cam body (to) to one end (Bl) of the lever 4 that fully raises and lowers the spillage liquid receiver (2). At the same time, it is urged upward by a spring (2).Assistants are a third cam body and a limit switch for detecting the rotational position of the first cam body.

FIG. 1 shows the timing of interlocking of each part.

The entire operation of FIGS. 2 and 3 will be explained based on the timing diagram of FIG. 1.

While waiting for sales, the filtrate receiver (2) is lowered as shown in Figure 2, and the lower opening (5) of the extraction chamber main body (1) is closed to the filter (
4) Not covered. Further, the valve body Ql) is urged upward by a compression spring to close the communication hole (9).

At the start of sales, operate the compressor A9 and install the extraction chamber main body (
Heated air heated by the heat of hot water tank 4 is placed in the lower part (8) of 1) - [Fig. 1 (fl)'! i-Send to preheat the extraction chamber body (1). In addition, the first geared motor □□
Operate □ to rotate the first cam body (FIG. 1 1al) f, and use the first cam body (C) to rotate the valve stem of the valve body (B) @
Press downward against the force of the full compression splash to open the communication hole (9).
) [Fig. 1 (bl) t-opened and one end of the lever 4 pivoted by the shaft fBlt-transmission ii!
! The second cam body (to) pushes down through the V par (to) and rotates the lever cID to the imaginary line position in Fig. 3, raising the filtrate receiver (2) and removing the filtrate. Press (4) against the lower end opening (5) of the extraction chamber main body (1) [Figure 1 (
C)]. In this state, the preheating process is completed, and then one cup of coffee, powder, and hot water are poured into the lower chamber (8) of the extraction chamber main body (1) through the open communication hole (9) [Fig. (d)]. Hot water is supplied from the hot water tank (7) via a pump@. When the introduction of coffee powder and vortex is completed, the supply of heated air from air supply port 0 is restarted. This heated air (a) is blown into the mixed liquid diagram in the lower chamber (8) of the extraction chamber main body (1), and the mixed liquid is stirred by the blown air. When the first cam body (C) rotates fully and the communication hole (9) is closed by the valve body (11), the extraction chamber body ( The internal pressure (FIG. 1(e)) of the lower chamber (8) of 1) increases, and the mixed liquid is filtered under pressure.

At the end of this pressurized filtration, the lever w't-time t is earlier than the time t when the lever w't returns from the imaginary line position in FIG. 3 to the solid line position. Then, the valve stem is pressed by the first cam body (c), and the valve body Qυ opens against the compression spring OO, and the extracted coffee powder ( The back pressure is released from the communication hole (9) remote from the extraction chamber main body (1).
The pressure inside the lower chamber (8) suddenly drops to atmospheric pressure. Therefore, when the filtrate receiver (2) is completely lowered at the time t, the extracted coffee powder does not spout out.

After the filtrate receiver (2) is lowered, the second geared motor 0
υ is operated, and the belt-shaped film (4) is transferred at a predetermined pitch using the drive roller aQ and the pinch roller α in preparation for the next sale.

As described in the detailed description of the invention, the extraction filtration device of the present invention is configured to open the upper communication hole of the extraction chamber main body before removing the filter from the lower opening of the extraction chamber main body. Back pressure can be relieved without providing a solenoid valve for communicating with the atmosphere in the path for supplying pressurized air to the main body.

[Brief explanation of drawings]

1 to 3 show one embodiment of the present invention, FIG. 1 is an explanatory diagram of the operation process of the extraction filtration device of the present invention, FIG. 2 is a partially cutaway front view, and FIG. A partially cutaway x-x' arrow view of the figure, Fig. 4 is a configuration diagram of a conventional coil and extraction device, Fig. 5 is an explanatory diagram of the operation of the extraction filtration device, and Fig. 6 is a Y of Fig. 4. -Y'
It is an arrow view. (1)... Extraction chamber main body, (4)... Strip filter,
Q... Valve body, (2)... Air supply port, (2)...
・Driving device main body, (c)...cam body, (2)...lever, to...back pressure release time, t...filtrate receiver is lowering time agent Yoshihiro Morimoto 1st Figure 2 Figure X' Figure 3 Figure 4 Figure 1

Claims (1)

[Claims] 1. Move the filter and the extraction chamber main body relatively, cover the lower opening of the extraction chamber main body with the pressed filter, and introduce raw material powder and hot water from the upper communication hole of the extraction chamber main body having a valve body. , the valve body is configured to blow pressurized air into the closed extraction chamber main body to forcibly filter the mixed liquid of the raw material powder and hot water through the filter using the pressure difference between the inside and outside of the extraction chamber main body; An extraction filtration device for a vending machine, wherein the body driving means is configured to open the upper communication hole of the extraction chamber main body before removing the filter from the lower opening of the extraction chamber main body.