JPH09150898A - Liquid extractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To introduce a specified amount of liquid into an extract port part from a liquid container without fail, and extract a constant amount of liquid by preventing irregularity. SOLUTION: By using an introduction control means, while an upper pinch part 72 is moved to an open position, a lower pinch part 73 is moved to a closing position. After a presser plate 69 is moved to a retreating position allowing an excess amount of introduction beyond a fixed retreating position which corresponds to a fixed amount of liquid introduction, the presser plate 69 is advanced by the amount of excess introduction. That is, after more than a fixed amount of liquid is introduced from the liquid container 41 into the extract port part 44, an excess amount is returned to the liquid container 41, so that the extract port part 44 is conditioned to have a fixed amount of introduction. Also by an extract control means, while the upper pinch part 72 is moved to the closing position, the lower pinch part 73 is moved to the opening position, and the presser plate 69 is advanced to extract the liquid in the extract port part 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid extraction device for extracting a predetermined amount of liquid from a liquid container.

[0002]

2. Description of the Related Art Conventionally, for example, in a cup dispenser or a cup-type vending machine for extracting and providing a beverage liquid into a cup, a low-acid beverage raw material liquid which is easily contaminated by oxidation or bacteria of coffee, tea, oolong tea, etc. A so-called back-in-box in which a neutral beverage raw material liquid etc. is aseptically enclosed in a bag-shaped liquid container and this liquid container is built in a cardboard box, and a certain amount of the raw material liquid in the liquid container is extracted at the time of selling the beverage. There is one that is diluted with and extracted in a cup.

A liquid extraction device using such a back-in-box is, for example, Japanese Patent Laid-Open No. 6-29334.
As described in Japanese Patent Laid-Open No. 8 or Japanese Patent Laid-Open No. 6-293393, a structure is known in which a constant amount of raw material liquid is extracted from a liquid container in a back-in-box.

This liquid extraction device has an extraction passage in which the flexible extraction opening of the liquid container is arranged downward, and one side wall of this extraction passage is provided on the other side wall facing the extraction passage. On the other hand, a pressing plate is provided so as to be movable in a substantially vertical direction, and a pair of pinch portions is provided so as to be able to move forward and backward from the upper and lower portions of the pressing plate into the extraction passage. The pressing plate is moved to two positions by the operation of the pressing solenoid, that is, an advancing position that advances into the extraction passage and a retracted position that retracts from the extraction passage. The pair of pinch parts are integrally supported, and are swung to two positions in which one of them advances and the other retracts by the operation of the pinch solenoid, and in the advanced position, the extraction port of the liquid container is connected to the extraction passage part. Close it by crimping on the other side wall.

Then, in the extraction standby state, the upper pinch portion retreats to open the upper side of the extraction port of the liquid container and the lower pinch portion advances to close the lower side of the extraction port of the liquid container. Then, the pressing plate is positioned at the retracted position.
As a result, a certain amount of the raw material liquid in the liquid container is drawn into the extraction port.

Subsequently, when the extraction operation is started, the operation of the pinch solenoid causes the upper pinch portion to advance and close the upper portion of the extraction port portion, and the lower pinch portion to retreat to cause extraction of the extraction port portion. The lower side is opened, and at the same time, the pressing plate moves to the advanced position by the operation of the pressing solenoid to press the extraction port. As a result, a certain amount of the raw material liquid that has been drawn into the extraction port is extracted from the extraction port at the lower end of the extraction port.

Then, the operation of the pinch solenoid causes the upper pinch portion to retreat to open the upper side of the extraction port portion and the lower pinch portion to advance to close the lower side of the extraction port portion and simultaneously press the same. The pressing plate moves to the retracted position by the operation of the solenoid. This returns to the extraction standby position and the raw material liquid in the liquid container is sucked into the extraction port by a certain amount.

[0008]

However, in the conventional liquid extraction device, the raw material liquid in the liquid container is discharged to the extraction port by retracting the pressing plate to the predetermined retracted position corresponding to the predetermined suction amount. However, when the pressure plate is not set back so much or the remaining amount of the raw material liquid in the liquid container is low, the pressure plate is set to a predetermined amount corresponding to the predetermined intake amount. Even if the raw material liquid is retracted to the retracted position, the corresponding amount of the raw material liquid may not be drawn into the extraction port within a predetermined time, which causes a problem that the quantitative property of the raw material liquid varies in a decreasing direction.

Further, when the pressing plate is retracted to the predetermined retracted position corresponding to the predetermined liquid suction amount, even if the pressing plate overruns to a position past the predetermined retracted position, it is necessary to take measures against it. Therefore, the raw material liquid is extracted in an amount larger than the predetermined amount, and in this case, there is a problem that the quantitative property of the raw material liquid varies in the increasing direction.

The present invention has been made in view of the above point, and it is possible to reliably draw a predetermined amount of liquid from the liquid container to the extraction port portion, and prevent variations in the extraction amount,
An object of the present invention is to provide a liquid extraction device capable of extracting a fixed amount of liquid within a predetermined extraction time within a normal range without extending the time.

[0011]

A liquid extraction apparatus according to claim 1, wherein an extraction passage is provided in which a flexible extraction opening of a liquid container for containing a liquid is arranged downward. The body and one side wall of this extraction passage are provided so as to be movable in a substantially vertical direction with respect to the other side wall facing the extraction passage. A pressing plate that draws in the liquid that has been drawn into the extraction port at the time of advancing into the extraction passage, and a pressing plate drive means that moves the pressing plate forward and backward with respect to the extraction passage, A pair of pinch parts that are capable of advancing and retracting from the upper and lower parts of the plate into the extraction passage, and when advancing, close the inlet and outlet parts of the extraction opening of the liquid container by crimping to the other side walls of the extraction passage. Of the pair of pinch portions selectively advancing one of them to the closed position of the extraction port and retracting the other to the open position of the extraction port, and detection for detecting the moving position of the pressing plate. Means, and when the liquid is called in, the pressing plate driving means causes the pressing plate to move to a predetermined position while the upper pinch portion is moved to the open position and the lower pinch portion is moved to the closed position by the pinch driving means. Of a predetermined retracted position corresponding to the liquid inhalation amount to the retracted position to which the surplus inhalation amount is added, and then advancing the pressing plate by the surplus inhalation amount; At the time of later extraction, the upper pinch portion is moved to the closed position and the lower pinch portion is moved to the open position by the pinch driving means, and the pressing plate is moved. Characterized in that it comprises an extraction control means for advancing the pressing plate by gate drive means.

In a basic extraction operation, for example, in an extraction standby state, the upper pinch part is retracted to open the inlet part of the extraction port of the liquid container and the lower pinch part is advanced to extract the extraction port. The outlet is closed, and the pressing plate is advanced to press the extraction port. In order to extract the liquid contained in the liquid container from the extraction standby state, first, the pressing plate is retracted to draw the liquid in the liquid container into the extraction port. Then, the upper pinch part is advanced to close the inlet part of the extraction port part, the lower pinch part is retracted to open the outlet part of the extraction port part, and the pressing plate is advanced to extract. By pressing the mouth portion, a predetermined amount of the liquid drawn into the extraction mouth portion is extracted. Subsequently, by retracting the upper pinch part to open the inlet part of the extraction port of the liquid container, and advancing the lower pinch part to close the outlet part of the extraction port,
After returning to the extraction standby state, one liquid extraction operation is completed.

Then, the pressing plate is retracted from a predetermined retracted position corresponding to a predetermined liquid inhalation amount to a retracted position to which a surplus inhalation amount is added, and then the pressure plate is advanced by the excess inhalation amount. After the liquid is drawn into the extraction port from the liquid container in an amount larger than a predetermined amount, the large amount of the liquid is returned to the liquid container and a predetermined amount of liquid is drawn into the extraction port. Since the extraction is performed from this state, even if the pressure plate is not set back so much or the amount of the raw material liquid in the liquid container is low, a predetermined call is made from the liquid container to the extraction port. You can bring in a large amount of liquid.

According to a second aspect of the present invention, there is provided an extraction passage body having an extraction passage in which a flexible extraction port of a liquid container for containing a liquid is arranged downward, and the extraction passage body. One of the side walls is configured to be movable in a direction substantially vertical to the other side wall facing the extraction passage, and when retreating out of the extraction passage, an amount of liquid corresponding to the amount of retreat from the liquid container to the extraction mouth portion. A pressing plate that draws in the liquid that has been drawn into the extraction port portion while advancing into the extraction passage, pressing plate drive means that moves the pressing plate forward and backward with respect to the extraction passage, and from the upper and lower parts of the pressing plate, A pair of pinch portions that are capable of advancing and retracting into and from the extraction passage, and at the time of advancing thereof, the inlet portion and the outlet portion of the extraction opening of the liquid container are crimped to the other side walls of the extraction passage to be closed, and the pair of pinches. Pinch driving means for selectively advancing one of them to the closed position of the extraction port and retracting the other to the open position of the extraction port, detection means for detecting the moving position of the pressing plate, and the liquid. When the upper pinch portion is moved to the open position and the lower pinch portion is moved to the closed position by the pinch driving means when the pressing plate is retracted to the last retracted position, A drive control means for advancing the pressing plate to a predetermined retracted position corresponding to a predetermined liquid intake quantity, and an upper pinch portion to a closed position by the pinch drive means at the time of extraction after the liquid is drawn in. Extraction control for moving the lower pinch part to the open position and advancing the pressing plate by the pressing plate driving means. Characterized in that it comprises a means.

The basic extracting operation is the same as that of the liquid extracting apparatus according to the first aspect.

Then, after the pressing plate is retracted from the predetermined retracted position corresponding to the predetermined liquid intake amount to the rearmost retracted position, the pressure plate is retracted to the predetermined retracted position corresponding to the predetermined liquid intake amount. By advancing to the liquid container, the liquid is drawn into the extraction port from the liquid container in a larger amount than the predetermined amount, and then the large amount of liquid is returned to the liquid container and a predetermined amount of liquid is drawn into the extraction port. In a state of being called in,
Since extraction is performed from this state, even if the pressure plate is not set back too much or the amount of raw material liquid in the liquid container is low, a predetermined suction is made from the liquid container to the extraction port. Can attract a large amount of liquid.

According to a third aspect of the liquid extraction device of the present invention, there is provided an extraction passage body having an extraction passage in which a flexible extraction port of a liquid container for containing a liquid is arranged downward, and the extraction passage body. One of the side walls is configured to be movable in a direction substantially vertical to the other side wall facing the extraction passage, and when retreating out of the extraction passage, an amount of liquid corresponding to the amount of retreat from the liquid container to the extraction mouth portion. A pressing plate that draws in the liquid that has been drawn into the extraction port portion while advancing into the extraction passage, pressing plate drive means that moves the pressing plate forward and backward with respect to the extraction passage, and from the upper and lower parts of the pressing plate, A pair of pinch portions that are capable of advancing and retracting into and from the extraction passage, and at the time of advancing thereof, the inlet portion and the outlet portion of the extraction opening of the liquid container are crimped to the other side walls of the extraction passage to be closed, and the pair of pinches. Pinch driving means for selectively advancing one of them to the closed position of the extraction port and retracting the other to the open position of the extraction port, detection means for detecting the moving position of the pressing plate, and the liquid. When the upper pinch portion is moved to the open position and the lower pinch portion is moved to the closed position by the pinch driving means, the pressing plate driving means moves the pressing plate to a predetermined liquid injecting amount. And a retracting control means for retracting to a predetermined retracted position, and a pressing plate drive when the pressing plate retracted by the pressing plate driving means retracts to a position past a predetermined retracting position when the liquid is called in. Means for advancing the pressing plate to a predetermined retracted position corresponding to a predetermined liquid intake amount, and the liquid. And extraction control means for moving the upper pinch portion to the closed position and the lower pinch portion to the open position by the pinch driving means, and advancing the pressing plate by the pressing plate driving means. It is characterized by having.

The basic extracting operation is the same as that of the liquid extracting apparatus according to claim 1.

When the pressing plate is retracted to a predetermined retracted position corresponding to a predetermined liquid suction amount, and when the pressing plate is retracted to a position past the predetermined retracted position, the pressing plate is retracted to a predetermined position. By advancing to a predetermined retracted position corresponding to the liquid intake amount, a large amount of the liquid drawn into the extraction port is returned to the liquid container, and a predetermined amount of liquid is drawn into the extraction port. Since the extraction is performed from this state, it is possible to set the amount of liquid to be drawn into the extraction port from the liquid container to a predetermined amount.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the liquid extraction apparatus of the present invention will be described below with reference to the drawings.

FIG. 7 is a block diagram of a beverage extractor to which the liquid extractor is applied. In this beverage extractor, the raw material liquid of the beverage is extracted into the cup 2 arranged in the extraction unit 1 on the front surface of the main body (not shown), and hot or cold water is extracted, and the raw material liquid and hot or cold water or cold water are extracted in the cup 2. Are mixed to make a diluted beverage.

To extract the raw material liquid, a plurality of, in the present embodiment, two back-in boxes 3 accommodating different kinds of raw material liquids are used, and a predetermined amount of the raw material liquid is supplied from each back-in box 3. A liquid extraction device 4 for extracting the is used.

A hot water supply device 5 is used for extracting hot water. The hot water supply device 5 includes a hot water tank 6 for storing hot water, tap water or the like is supplied into the hot water tank 6 through a hot water supply solenoid valve 7, and the water is supplied by a heater 8 arranged in the hot water tank 6. The hot water is heated from room temperature to a predetermined hot water temperature, and the hot water in the hot water tank 6 is guided to the extraction unit 1 through the hot water electromagnetic valve 9 and extracted into the cup 2. The hot water tank 6 has a hot water temperature sensor 10 for detecting the hot water temperature at a height corresponding to the extraction position from the hot water tank 6, a heater sensor 11 for detecting the hot water temperature in the vicinity of the heater 8, and a hot water tank 6 inside. Float switch 12 for detecting the amount of stored hot water, drain cock for draining water from hot water tank 6
13 etc. are provided.

A cold water supply device 14 is used for extracting cold water. The cold water supply device 14 includes a cold water tank 15,
Cooling water is stored in the cold water tank 15, and the cooling water is cooled to a predetermined water temperature by the cooling unit 16. The cooling unit 16 includes a cooling cycle 21 including a compressor 17 for compressing a refrigerant, a condenser 19 having a heat radiating fan 18, and an evaporator 20 arranged in a cold water tank 15. A cooling pipe 22 is arranged in the cold water tank 15, tap water or the like is supplied to this cooling pipe 22 through a cold water supply solenoid valve 23, a pressure reducing valve 24, and a water amount adjusting valve 25, and the cold water cooled through the cooling pipe 22 is cooled. It is guided to the extraction unit 1 through the electromagnetic valve 26 and extracted into the cup 2. In the cold water tank 15,
A stirring screw 2 that is rotated by a motor 27 to stir the cooling water
8, water temperature sensor 2 that detects the temperature of cold water in the cold water tank 15
9, a float switch 31 for detecting a decrease in the cooling water stored in the cold water tank 15, a drain cock 32 for draining the water from the cold water tank 15, and the like are provided.

FIG. 5 is a front view of the liquid container of the back-in box 3, and FIG. 6 is a perspective view of the back-in box 3.
The back-in-box 3 includes a liquid container 41 and the liquid container 41.
And a cardboard box 42 for storing the.

The liquid container 41 is formed of a material having a high gas barrier property and flexibility, for example, a multilayer film of polyethylene, adhesive layer, EVAL, adhesive layer, and polyethylene.
It has a liquid storage bag portion 43 for storing the raw material liquid of the beverage and an extraction port portion 44 for extracting the raw material liquid in the liquid storage bag portion 43. The liquid storage bag portion 43 has a filling port sealed with a sealing lid 45.
46 is attached integrally. The extraction port portion 44 is a quantitative extraction bag portion 47, an inlet portion 48 that communicates the quantitative extraction bag portion 47 and the liquid storage bag portion 43, and an outlet portion that communicates with the inlet portion 48 of the quantitative extraction bag portion 47. Has 49. And the liquid container 41
Is composed of two multi-layer films of a front wall and a back wall, and their peripheral edges are welded together via a heat-sealing portion 50 to form a hermetically sealed state as a whole. Further, set holes 51 for positioning and mounting the liquid extraction device 4 are formed at the four corners of the heat seal part 50 on the periphery of the quantitative extraction bag part 47 of the extraction port part 44. Then, when filling the raw material liquid of the beverage into the liquid container 41, the proximal end portion of the inlet portion 48 is sandwiched by detachable pins or the like as shown by the broken line a in FIG. The raw material liquid is closed so as not to flow out, and the raw material liquid of the beverage is filled with the aseptic filling machine through the filling port 46 of the liquid storage bag portion 43.

The cardboard box 42 has an extraction port 44 of the liquid container 41.
Perforation 53 so that the window 52 for pulling out can be opened
The back-in-box 3 is formed by storing the liquid container 41 in the cardboard box 42 in a folded state so that the extraction port 44 can be pulled out from the window 52 to the outside. ing. Then, at the time of use, the perforations 53 are broken to open the window portion 52, and the extraction port portion 44 is pulled out as shown by a two-dot chain line in FIG.

FIG. 1 is a sectional view of the liquid extracting device 4 viewed from the side, where the right side is the front side and the left side is the rear side. The liquid extraction device 4 has an extraction passage body 61.
The fixed frame plate 62 includes a fixed frame plate 62 and a cover plate 63 that can be opened and closed with respect to the front surface of the fixed frame plate 62.
An extraction passage 64 in which the extraction port portion 44 of the liquid container 41 is detachably mounted is formed so as to penetrate in the vertical direction in a gap with the 63.

At the center of the fixed frame plate 62, there is formed a substantially rectangular recess 66 which constitutes the intake space 65, and at the center of this recess 66 there is formed a through hole 67 penetrating the front and rear surfaces. Slit holes 68 that are laterally long and penetrate in the front-rear direction are formed along the upper and lower sides of the recess 66 at adjacent positions on the upper and lower sides of the recess 66.

The lid plate 63 has locking means (not shown) for locking the fixed frame plate 62 side at the closed position. In addition, the extraction passage 64 is formed by the quantitative extraction bag portion 4 of the extraction mouth portion 44.
7, fixed frame plate 6 according to the shape of inlet 48 and outlet 49
The fixed frame plate 6 is formed in a concave shape on the 2 side and faces the extraction passage 64.
A plurality of pins (not shown), which engage with the plurality of set holes 51 of the extraction port portion 44 and are positioned, project from the position 2.

In the recess 66 of the fixed frame plate 62, a pressing plate 69 which constitutes one side wall of the extraction passage 64 is arranged. The pressing plate 69 is formed in a substantially rectangular plate shape slightly larger than the size of the quantitative extraction bag portion 47 of the extraction port portion 44, and has a recess 66.
Boss 70 that fits inside and projects in the center of the rear surface
Is fitted inside the tubular member 71 fitted and fixed in the through hole 67 of the recess 66, and is arranged so as to be movable in a direction substantially perpendicular to the other side wall facing the extraction passage 64, that is, the lid plate 63. Then, the pressing plate 69, when retreating to the outside of the extraction passage 64, supplies the raw material liquid in an amount corresponding to the retreating amount from the liquid container 41 to the extraction port portion 44.
And acts so as to extract the raw material liquid that has been drawn into the extraction port portion 44 when advancing into the extraction passage 64.

Pinch portions 72 and 73 are arranged in the upper and lower slit holes 68 of the fixed frame plate 62, respectively. This pinch part
72 and 73 are formed in a horizontally long flat plate shape slightly larger than the widths of the inlet portion 48 and the outlet portion 49 of the extraction port portion 44, and the tip facing the extraction passage 64 is formed into a substantially curved surface, and the slit hole portion 68. It is fitted inside and is arranged so as to be able to move back and forth in the extraction passage 64. Then, the pinch parts 72, 73 press the inlet part 48 or the outlet part 49 of the extraction port part 44 against the other side wall of the extraction passage 64 to close it when advancing, and close the inlet part 48 or the outlet part of the extraction port part 44 when retreating. Release 49.

A frame 74 is provided on the rear side of the fixed frame plate 62.
Is connected to the frame 74, and the pressing plate drive mechanism 75
And a pinch drive mechanism 76 are arranged respectively.

The pressing plate driving mechanism 75 has a motor 78 as a pressing plate driving means integrated with a gear box 77 attached to the frame 74, and the rotational driving force of the motor 78 is transmitted to the pressing plate 69 by the transmitting means 79. It is converted into a moving force and transmitted. As the motor 78, a direct-current motor capable of rotating in the reverse direction by reversing the polarity is used, and the rotating shaft 80 is rotated via the gear box 77. A cam 81 is fixed to the rotary shaft 80, a roller 82 is brought into contact with the rear surface of the cam 81, and a roller 82 of a slide shaft 83 fitted to the tubular member 71 slidably in the axial direction (front-back direction). The rear end is rotatably supported, and the front end of the slide shaft 83 is connected to the rear surface of the boss portion 70 of the pressing plate 69. Inside the tubular member 71, a coil-shaped spring body 84 is fitted in a compressed state between the rear surface of the boss portion 70 and the closed rear surface of the tubular member 71 while being fitted around the slide shaft 83. Therefore, the transmission means 79 is composed of the cam 81, the roller 82, the slide shaft 83 and the spring body 84.

A detection means 85 for detecting the rotation amount of the cam 81, that is, the moving position of the pressing plate 69 is provided. In this detection means 85, a detection cam 86 is fixed to the rotary shaft 80, and the pressing plate faces the peripheral surface of the detection cam 86.
69 is pushed forward by the detection cam 86 to turn on at the advanced position in the extraction passage 64.Standby position detection switch 87 is turned on by the detection cam 86 pushed at the most retracted overrun position to turn on. An overrun detection switch 88 is provided. Further, a rotary plate 90 having slits 89 formed at regular intervals on its peripheral edge is fixed to the rotary shaft 80, and a light emitter and a light receiver are arranged on both sides of the peripheral edge of the rotary plate 90 to detect the slit 89. A photo interrupter 91 as a quantity detection sensor is provided.

Further, the pinch drive mechanism 76 has a swing plate 92 having upper and lower end portions engaged with the rear ends of the upper and lower pinch portions 72 and 73, and the middle portion of the swing plate 92 is fixed. A bracket (not shown) attached to the rear surface of the frame plate 62 is pivotally supported by a supporting shaft 93, and the rocking plate 92 rocks about the supporting shaft 93 as a fulcrum, so that one of the upper and lower pinch parts 72, 73. One of them is advanced to the closed position of the inlet 48 of the extraction port 44, and the other is retracted to the open position of the outlet 49 of the extraction port 44.

A spring 94 is stretched between the rear end of the upper pinch portion 72 and the rear portion of the frame 74. Swing plate 92
A lever portion 95 is provided on the rear side of the lever 95, and a solenoid serving as a pinch driving means is provided at an upper position facing the tip of the lever portion 95.
96 is attached to the frame 74, and a spring 98 is stretched between the lever portion 95 and the plunger 97 of the solenoid 96.

When the solenoid 96 is not excited, the plunger 97 is projected downward, and in this state the spring 94
Tension exceeds that of the spring 98, the swing plate 92 is swung counterclockwise as shown in FIG.
When the solenoid 96 is excited, the plunger 97 is attracted upward.
The tension of 98 wins, and the swing plate 92 swings clockwise as shown in FIG.

FIG. 8 shows the main configuration of the beverage extractor,
Reference numeral 101 is a control means. The control means 101 includes a selection switch 102 for selecting the type of beverage (two types in this embodiment), an increase / decrease switch 103 for selecting the concentration of the beverage (dark or light), and a brewing mode. Setting means 104 including a data input key and the like, counting means 105 having a counter function such as a call amount monitoring counter described later, various display means 106, two liquid extraction devices 4, hot water supply device 5 and cold water The supply devices 14 are connected to each other.

The selection switch 102, the increase / decrease switch 103 and a part of the display means 106 are arranged on the front surface of the main body, and the setting change means 104 and a part of the display means 106 are arranged inside the main body.

FIG. 9 shows a control block diagram of the beverage extractor. The control means 101 has a CPU 111 of the central processing unit, a ROM 112 in which programs and the like are registered, and a RAM 113 capable of writing and reading various data at any time. There is.

On the input side of the control means 101, a selection switch 102, an increase / decrease switch 103, a setting change means 104,
Standby position detection switch 87 and overrun detection switch 88 and photointerrupter 91 of each liquid extraction device 4 are connected to a raw material exhaustion sensor 114 for detecting the absence of raw material liquid in the liquid container 41, a hot water temperature sensor 10, and a water temperature sensor 29. Has been done.

On the output side of the control means 101, a power source, an appropriate temperature,
A display means 106 for displaying a material exhaustion, an abnormality, etc., a motor 78 of each liquid extraction device 4, a solenoid 9 of each liquid extraction device 4.
6, hot water solenoid valve 9, cold water solenoid valve 26, hot water supply solenoid valve 7, cold water supply solenoid valve 23, heater 8 of the hot water supply device 5,
The cooling unit 16 of the cold water supply device 14 and the like are connected.

The control means 101 has the function of the call-in control means, the function of the call-in correction control means, and the function of the extraction control means. The details will be described in the following operation.

Next, the operation of this embodiment will be described.

First, the back-in box 3 is set in the beverage extractor. Break the perforation 53 and open the window 52,
As shown by the chain double-dashed line in FIG. 6, the extraction port portion 44 is pulled out, and the cardboard box 42 is placed on a predetermined placement portion provided above the liquid extraction device 4. The lid plate 63 of the liquid extracting device 4 is opened to open the front surface of the fixed frame plate 62, and the extraction port portion 44 hanging from the corrugated cardboard box 42 is engaged with the extraction passage 64 of the fixed frame plate 62 and the extraction port portion 44. Set holes 51 at the four corners of the quantitative extraction bag 47
Is engaged with a set pin protruding from the fixed frame plate 62 for positioning, and the cover plate 63 is closed and locked. The cardboard box 42
Alternatively, the liquid container 41 may be unsealed, the liquid container 41 may be taken out, and the taken out liquid container 41 may be directly placed on a predetermined placing portion.

As a result, the extraction port portion 44 is sandwiched between the fixed frame plate 62 and the cover plate 63, and is arranged in the extraction passage 64. In the extraction passage 64, the quantitative extraction bag portion 47 faces the pressing plate 69, the inlet portion 48 faces the upper pinch portion 72, and the outlet portion 49 faces the lower pinch portion 73. The base end of the inlet 48 is the extraction passage 64
And the lower end of the outlet portion 49 projects below the extraction passage 64. Then, by removing the pin that closes the proximal end of the inlet part 48 and cutting the tip of the outlet part 49 of the extraction port part 44 at the position of the broken line b in FIG. 5 to open and open the extraction port. , The set is completed. Two back-in boxes 3 accommodating different types of raw material liquids are set in the beverage extractor according to the present embodiment.

Next, the brewing operation in the basic first beverage brewing mode of the liquid brewing apparatus 4 under the control of the control means 101 will be described with reference to the flowchart of FIG. 10 and the timing chart of FIG. The beverage extraction mode can be set by the setting changing means 104.

In the standby state, as shown in FIG. 1, the pressing plate 69 is located at the forward position where it enters the extraction passage 64, and the pressing plate 69 covers the quantitative extraction bag portion 47 of the extraction port 44 with the cover plate.
Pressed against 63 and closed. At the position of the pressing plate 69, the standby position detection switch 87 is turned on, the overrun detection switch 88 is turned off, and the photo interrupter 91 is turned on.
Is off. Further, the solenoid 96 is turned off, and the oscillating plate 92 is rotated counterclockwise in FIG. 1 by the urging force of the spring 94, the upper pinch portion 72 is positioned at the open position, and the lower pinch portion 73 is closed. Position, lower pinch
At 73, the outlet 49 of the extraction port 44 is closed.

In order to operate the beverage extractor to obtain a beverage, the cup 2 is set in the extractor 1 on the front of the main body of the beverage extractor, the type of beverage desired is selected, and whether the beverage is warm or not. Select the cold one and operate the selection switch 102 on the front of the body of the beverage extractor. Furthermore, when it is desired to make the beverage darker or thicker than the standard beverage concentration set in the beverage extractor, the increase / decrease switch 103 is operated.

When the selection switch 102 is operated (step 1), it is determined whether the increase / decrease switch 103 is operated (step 2). When the increase / decrease switch 103 is not operated, the standard extraction amount (intake amount) of the raw material liquid is set (step 3). When the increase / decrease switch 103 is operated, the extraction amount (call-in amount) is set by adding the increase amount to the standard extraction amount (call-in amount) when the increase amount is specified, and the standard extraction amount (calling amount) is set when the decrease amount is specified. The extraction amount (call-in amount) obtained by subtracting the reduction amount from the input amount is set (step 4).

Subsequently, the pressing plate 69 and the pinch portion 7
It is determined whether or not 2, 73 are in the standby position, that is, whether the standby position detection switch 87 is on and the solenoid 96 is off (step 5). If it is not in the standby position,
The initialization process is executed to rotate the motor 78 and turn off the solenoid 96 (step 6). When the detection cam 86 is rotated by the rotation of the motor 78 and the pressing plate 69 reaches the standby position, the standby position detection switch 87 is turned on by the detection cam 86. When the standby position detection switch 87 is not turned on and the solenoid 96 is not turned off (step 7), an abnormality process such as displaying an abnormality is executed (step 8).

When the pressing plate 69 is in the standby position by the initialization process, when the pressing plate 69 is in the standby position, the intake amount monitoring counter of the counting means 105 is set and the motor 78 is rotated in the normal direction to start the operation of injecting the raw material liquid (step). 9).

The forward rotation of the motor 78 causes the cam 81 to rotate counterclockwise in the state shown in FIG.
The roller 82 is gently pushed rearward by the roller 82, and the pressing plate 69 moves rearward integrally with the roller 82, and the front surface of the pressing plate 69 moves to the outside of the extraction passage 64 to form the intake space 65. Go. Therefore, the quantitative extraction bag portion 47 of the extraction port portion 44, in which the pressing by the pressing plate 69 has been released, is the calling space 65.
In this way, the raw material liquid in the liquid container 41 is drawn into the quantitative extraction bag part 47 through the inlet part 48 of the extraction port part 44 by its own weight. At this time, the raw material liquid in an amount corresponding to the amount of retreat of the pressing plate 69 is called from the liquid container 41 to the quantitative extraction bag portion 47 of the extraction port portion 44.

When the slit 89 of the rotary plate 90 which rotates integrally with the cam 81 reaches the position of the photo interrupter 91, the counting means 105 each time the slit 89 is detected by the photo interrupter 91.
The forward rotation amount of the motor 78 corresponding to this count value, that is, the pressing plate
The retracted position of 69 is monitored.

Based on the count value counted by the call amount monitoring counter of the counting means 105, the forward rotation amount of the motor 78 corresponding to the initially set extraction amount (call amount), that is, the predetermined pressing plate 69. It is determined whether or not the vehicle has reached the backward position of (step 10).

The forward rotation amount of the motor 78 corresponding to the initially set extraction amount (call-in amount), that is, until the pressing plate 69 reaches a predetermined retracted position, the raw material shortage detection sensor
At 114, the presence or absence of the raw material liquid in the liquid container 41 is monitored (step 11), and it is monitored whether the overrun detection switch 88 is turned on (step 12). Here, when it is detected that there is no raw material liquid, the motor 78 is stopped and raw material exhaustion processing is performed to display the raw material exhaustion (step 13). Also,
For some reason, the normal rotation amount of the motor 78 corresponding to the initially set extraction amount (call-in amount), that is, the predetermined retracted position of the pressing plate 69 has passed, and the rotation of the motor 78 continues as it is. When the overrun detection switch 88 is turned on by the detection cam 86, the overrun correction process described later is performed by the function of the call-in correction control means of the control means 101 (step 14).

Then, as shown in FIG. 2, when the normal rotation amount of the motor 78 corresponding to the initially set extraction amount (intake amount), that is, the predetermined retracted position of the pressing plate 69 is reached,
The motor 78 is stopped (step 15). In the state shown in FIG. 2, the pressing plate 69 is corresponding to the initially set extraction amount.
Is retracted to a predetermined retracted position, and an amount of the raw material liquid corresponding to the retracted amount of the pressing plate 69 is called from the liquid container 41 to the quantitative extraction bag portion 47 of the extraction port portion 44. That is, when the increase / decrease switch 103 is used to specify the amount of increase, the pressing plate 69 is positioned behind the standard retracted position, and when the amount of decrease is specified, the pressing plate 69 is moved to the front of the standard retracted position. Located in.

Subsequently, as shown in FIG. 3, the solenoid 96
Is excited (step 16), and the rocking plate 92 is rotated clockwise in the figure to move the upper pinch portion 72 to the closed position and the lower pinch portion 73 to the open position.
As a result, the upper pinch portion 72 is provided with the inlet portion 48 of the extraction mouth portion 44.
Is closed to prevent the raw material liquid from flowing from the liquid container 41 to the extraction port portion 44. By moving the lower pinch part 73 to the open position, the outlet part 49 of the extraction port part 44 is opened, and the raw material liquid called into the quantitative extraction bag part 47 is extracted from the extraction port at the lower end of the outlet part 49. It is extracted in the cup 2 arranged in the extraction unit 1.

Then, the call amount monitoring counter of the counting means 105 is reset (step 17).

Then, the motor 78 is rotated in the reverse direction (step
18). As a result, in the state of FIG. 3, the cam 81 rotates in the clockwise direction, and the roller 82 biased by the spring body 84 with respect to the cam 81 is gently driven forward,
The pressing plate 69 moves forward together with the roller 82,
The front surface of the pressing plate 69 moves toward the extraction passage 64 and narrows the intake space 65. Therefore, the pressing plate 69 forcibly presses the quantitative extraction bag portion 47 of the extraction mouth portion 44 against the lid plate 63, and the raw material liquid in the quantitative extraction bag portion 47 of the extraction mouth portion 44 is forcibly extracted. . Therefore, the raw material liquid in the quantitative extraction bag portion 47 of the extraction port portion 44 can be extracted in a short time and the raw material liquid can be prevented from remaining.

Then, as shown in FIG. 4, the extraction of the raw material liquid in the quantitative extraction bag portion 47 of the extraction port portion 44 is completed, the pressing plate 69 reaches the initial standby position, and the detection cam 86 detects the standby position. When the detection switch 87 is turned on (step 19), the motor 78
Is stopped (step 20).

After the motor 78 is stopped, the outlet 49 of the extraction port 44 is
After a lapse of a predetermined time (step 21) in consideration of the time when the sagging of the raw material liquid disappears (step 21), the solenoid 96 is de-energized (step 22), and as shown in FIG. To move the upper pinch portion 72 to the open position and the lower pinch portion 73 to the closed position. As a result, the initial standby state is restored, and a series of extraction operations of the raw material liquid are completed, and the operation waits for the next extraction operation of the raw material liquid (step 23).

On the other hand, the hot and cold water supply device 5 or the cold water supply device 14 operates corresponding to the extraction operation of the raw material liquid to extract hot or cold water into the cup 2 of the extraction unit 1 and then the cup 2
The raw material liquid and hot or cold water are mixed therein to prepare a diluted beverage.

As described above, since the pressing plate 69 is moved by transmitting the driving force of the motor 78 to the pressing plate 69 via the transmitting means 79, the rotation amount of the motor 78 is controlled to control the pressing plate 69. The retracted position can be arbitrarily adjusted, that is, the amount of the raw material liquid drawn into the extraction port portion 44 of the liquid container 41 can be arbitrarily adjusted, and the amount of the raw material liquid extracted can be easily variably set. Therefore, it is possible to deal with making the beverage thicker or thinner depending on the preference of the concentration of the beverage liquid, and moreover, to increase or decrease the volume of the beverage liquid depending on the size of the cup 2, It is possible to deal with an increase or decrease.

Further, the pressing plate 69 is urged toward the extraction passage 64 by the spring body 84, the roller 82 rotatably supported by the pressing plate 69 is engaged with the cam 81 rotated by the motor 78, Pressing plate driven by motor 78
Since the 69 is moved, the pressing plate 69 can be smoothly moved, and the liquid can be extracted while gently pressing the extraction port portion 44 of the liquid container 41. Therefore, the outlet 49 of the extraction port 44 does not shake and the raw material liquid does not scatter.

Further, the rotary shaft rotated by the motor 78
Since the photo interrupter 91 detects the rotation amount of the rotary plate 90 provided on the 80, even if a DC motor is used, the moving position of the pressing plate 69 can be arbitrarily adjusted according to the rotation amount.

Next, the overrun correction processing in step 14 by the function of the call-in correction control means of the control means 101 will be described with reference to the flowchart of FIG.

For some reason, the forward rotation amount of the motor 78 corresponding to the initially set extraction amount (call-in amount), that is, the predetermined retracted position of the pressing plate 69 has passed, and the rotation of the motor 78 continues. Then, when the overrun detection switch 88 is turned on by the detection cam 86 (step 1
2) Stop the motor 78 (step 31). In this state, the pressing plate 69 has reached the final retracted position, and the raw material liquid of the maximum intake amount Y _MAX is called into the quantitative extraction bag part 47 of the extraction port part 44.

Further, it is judged whether or not the solenoid 96 is de-energized (step 32), and if it is in the energized state, the solenoid 96 is de-energized (step 33).

The call quantity monitoring counter of the counting means 105 is reset (step 34), and the predetermined extraction quantity (call quantity) initially set is subtracted from the maximum call quantity Y _MAX to obtain the surplus call quantity. Is calculated and the return correction value Z is set in the call amount monitoring counter of the counting means 105 (step 35).

Then, the motor 78 is rotated in the reverse direction (step
36). As a result, the pressing plate 69 moves forward, and the pressing plate 69 causes the quantitative extraction bag portion 47 of the extraction port portion 44 to move.
Is forcibly pressed against the lid plate 63, and the raw material liquid in the quantitative extraction bag portion 47 of the extraction port portion 44 is forced back into the liquid container 41 through the inlet portion 48.

Rotating plate 90 for rotating the motor 78 in reverse rotation
The slit 89 of the photo interrupter 91 is detected, and every time the slit 89 is detected by the photo interrupter 91, the counting means 10
Subtract from the return correction value Z of the call amount monitoring counter of 5.

Then, when the call-in amount monitoring counter of the counting means 105 reaches the return correction value Z = 0 (step 37), the motor
Stop 78 (step 38). As a result, the pressing plate 69 is advanced to a predetermined retracted position corresponding to the initially set extraction amount (intake amount) and stopped. Therefore, the raw material liquid of the initially set extraction amount (call-in amount) is called into the quantitative extraction bag part 47 of the extraction port part 44.

After this overrun correction processing,
Proceeding to 16, the extraction operation as described above is performed.

As described above, when the pressing plate 69 is retracted to the predetermined retracted position corresponding to the predetermined suction amount, when the pressing plate 69 is retracted to the position beyond the predetermined retracted position, the pressing plate 69 is pressed. By advancing the plate 69 to a predetermined retracted position corresponding to a predetermined suction amount, the extraction port portion 44
A large amount of the raw material liquid that has been drawn in is returned to the liquid container 41, and a predetermined amount of the raw material liquid is drawn into the extraction port 44, and the liquid container is used to perform extraction from this state.
It is possible to reliably set the ingestion amount of the raw material liquid to be drawn into the extraction port portion 44 from 41 to a predetermined inhalation amount, prevent the variation of the extraction amount, and extend the time without quantitative determination within a predetermined extraction time within the normal range. The raw material liquid can be extracted.

Next, the extraction operation in the second beverage extraction mode of the liquid extraction device 4 under the control of the control means 101 will be described with reference to FIG.
This will be described with reference to the flowchart of FIG. 3 and the timing chart of FIG.

When the selection switch 102 is operated (step 41), the pressing plate 69 and the pinch parts 72, 73 are pressed.
Is in the standby position, that is, the standby position detection switch 87
Is on and the solenoid 96 is off (step 42). If it is not in the standby position, initialization processing is executed to rotate the motor 78 and turn off the solenoid 96 (step 43). When the detection cam 86 is rotated by the rotation of the motor 78 and the pressing plate 69 reaches the standby position, the detection cam 86 detects the standby position detection switch.
87 turns on. If the standby position detection switch 87 does not turn on and the solenoid 96 does not turn off (step
44), abnormal processing such as displaying an abnormality is executed (step 45).

It is judged whether the increase / decrease switch 103 has been operated (step 46). If the increase / decrease switch 103 has not been operated, the standard extraction amount (call-in amount) X is added to the surplus call-in amount β, and the standard time is added. The total amount Y of calls is set (step 4
7). That is, when expressed by an equation, Y = X + βX. β
Is a coefficient of the surplus call-in amount.

When the increase / decrease switch 103 is operated,
In order to specify the amount of increase, the total amount of calls Y at the time of increase is set by adding the amount of excess call-in β to the amount of extraction (call-in amount) X1 In addition, in the case of the reduction specification, the standard extraction quantity (call quantity) X is subtracted by the reduction quantity (call quantity) X1 and the surplus call quantity β is added to add the total call quantity at the time of reduction. The quantity Y is set (step 48). That is, when expressed by the formula, Y = X1 + βX1. The extraction amount (call-in amount) X1 is X1 = (1 + α) X, and α is the standard
= 0, α> 0 for increasing amount, and α <0 for decreasing amount.

The call amount monitoring counter of the counting means 105 is set, the motor 78 is rotated in the normal direction, and the starting operation of the raw material liquid is started (step 49).

By the normal rotation of the motor 78, the pressing plate
69 moves rearward, and the raw material liquid in the liquid container 41 is extracted from the extraction port 44.
It is called into the quantitative extraction bag part 47 through the inlet part 48 of the. Further, when the photo interrupter 91 detects the slit 89 of the rotary plate 90 which rotates due to the normal rotation of the motor 78, the counting means 10 each time the slit 89 is detected by the photo interrupter 91.
The forward rotation amount of the motor 78 corresponding to this count value, that is, the pressure plate
The retracted position of 69 is monitored.

Based on the count value counted by the call quantity monitoring counter of the counting means 105, the normal rotation amount of the motor 78 corresponding to the set total call quantity Y, that is, the predetermined retracted position of the pressing plate 69 is set. Judge whether it has been reached (Step 5)
0).

Until the normal rotation amount of the motor 78 corresponding to the total intake amount Y, that is, until the pressing plate 69 reaches a predetermined retracted position, the raw material shortage detection sensor 114 detects whether or not the raw material liquid is present in the liquid container 41. While monitoring (step 51), it is monitored whether the overrun detection switch 88 is turned on (step 52). Here, if the absence of raw material liquid is detected, the motor
Processing for no raw material is performed such as stopping 78 and displaying that the raw material has run out (step 53). Further, for some reason, the normal rotation amount of the motor 78 corresponding to the initially set extraction amount (call-in amount), that is, the predetermined retracted position of the pressing plate 69 has passed, and the rotation of the motor 78 continues. When the detection cam 86 turns on the overrun detection switch 88, the above-mentioned overrun correction processing is performed by the function of the call-in correction control means of the control means 101 (step
54).

When the normal rotation amount of the motor 78 corresponding to the total incoming amount Y, that is, the predetermined retracted position of the pressing plate 69 is reached, the motor 78 is stopped (step 55). In this state, the pressing plate 69 is retracted from the retracted position corresponding to the standard extraction amount (call-in amount) X or the increased or decreased extraction amount (call-in amount) X1 to the retracted position by adding the surplus inhalation amount β. ,
The raw material liquid having a total intake amount Y corresponding to the retracted amount of the pressing plate 69 is called from the liquid container 41 to the quantitative extraction bag portion 47 of the extraction port portion 44.

Subsequently, the standard extraction amount (calling amount) X or the increased or decreasing extraction amount (calling amount) X1 is subtracted from the total invoking amount Y, and the return correction value Z corresponding to the surplus calling amount β is obtained. Then, the return correction value Z is set in the call amount monitoring counter of the counting means 105, and the motor 78 is rotated in the reverse direction (step 56).

As a result, the pressing plate 69 moves forward, and the pressing plate 69 forcibly presses the quantitative extraction bag portion 47 of the extraction port portion 44 against the lid plate 63, and the extraction port portion 44 is quantitatively determined. Liquid container for the raw material liquid in the extraction bag 47 through the inlet 48
Forcibly put it back in 41.

Rotating plate 90 for rotating the motor 78 with the reverse rotation
The slit 89 of the photo interrupter 91 is detected, and every time the slit 89 is detected by the photo interrupter 91, the counting means 10
Subtract from the return correction value Z of the call amount monitoring counter of 5.

When the call-in amount monitoring counter of the counting means 105 reaches the return correction value Z = 0 (step 57), the motor
Stop 78 (step 58). As a result, the standard extraction amount (call amount) X or the increased or decreased extraction amount (call amount) X1
To the predetermined retracted position of the pressing plate 69 corresponding to, and stops. Therefore, the standard extraction amount (call-in amount) X or the increased or decreased extraction amount (call-in amount) X1 of the raw material liquid is introduced into the quantitative extraction bag portion 47 of the extraction port portion 44.

Then, the solenoid 96 is excited and the step
The extraction operation is performed at 58 to 65. The extraction operation in steps 58 to 65 is performed in steps 16 to 16 according to the first beverage extraction mode.
It is similar to the extracting operation of 23, and the description thereof is omitted.

As described above, after the pressing plate 69 is retracted from the predetermined retracted position corresponding to the predetermined ingestion amount to the retracted position to which the surplus invocation amount is added, the pressing plate 69 is moved by the excess invocation amount. To move the raw material liquid to the liquid container 41.
From the extraction port part 44, the extraction port part 44 is returned to the liquid container 41 after being recalled into the extraction port part 44 more than a predetermined amount.
Since a predetermined amount of liquid has been drawn into the inside of the container and extraction is performed from this state, for example, when the pressing plate 69 does not move back too much when the amount of extraction is set too small or the liquid container 41
Even if the amount of raw material liquid in the
From this, it is possible to reliably draw a predetermined amount of raw material liquid into the extraction port 44, prevent variation in the amount of extraction, and extract a fixed amount of raw material liquid within a predetermined extraction time within the normal range without extending the time. can do.

Next, the extraction operation in the third beverage extraction mode of the liquid extraction device 4 under the control of the control means 101 will be described with reference to FIG.
This will be described with reference to the flowchart of FIG.

When the selection switch 102 is operated (step 71), the pressing plate 69 and the pinch parts 72, 73 are operated.
Is in the standby position, that is, the standby position detection switch 87
Is on and the solenoid 96 is off (step 72). If it is not in the standby position, initialization processing is executed to rotate the motor 78 and turn off the solenoid 96 (step 73). When the detection cam 86 is rotated by the rotation of the motor 78 and the pressing plate 69 reaches the standby position, the detection cam 86 detects the standby position detection switch.
87 turns on. If the standby position detection switch 87 does not turn on and the solenoid 96 does not turn off (step
74), and abnormal processing such as displaying an abnormality is executed (step 75).

Subsequently, the motor 78 is rotated in the forward direction to start the operation of invoking the raw material liquid (step 76). Pressing plate 69
When reaches the final retracted position and the overrun detection switch 88 is turned on (step 77), the motor 78 is stopped (step 78). When the pressing plate 69 is stopped at the most retracted position, the maximum extraction amount Y _MAX of the raw material liquid is introduced into the quantitative extraction bag portion 47 of the extraction port portion 44.

It is judged whether the increase / decrease switch 103 has been operated (step 79). If the increase / decrease switch 103 has not been operated, the standard extraction amount (calling amount) X is subtracted from the maximum call amount Y _MAX. Obtain the return correction value Z (step 8)
0). That is, when expressed by an equation, Z = _YMAX- X.

When the increase / decrease switch 103 is operated,
The bulking specified standard extraction amount (the guide-weight) extracted amount obtained by adding the increase amount with respect to X (the guide-volume) X1 determined, the amount extracted from the maximum guide-amount Y _{MA X} (the guide-volume) X1 The return correction value Z at the time of increase is calculated by subtraction, and in the case of the decrease specification, the extraction amount (call amount) X1 obtained by subtracting the decrease amount from the standard extraction amount (call amount) X is calculated to obtain the maximum call. The extraction amount (call-in amount) X1 is subtracted from the injection amount Y _MAX to obtain the return correction value Z at the time of reduction (step 81). That is, when expressed by a formula, Z = Y _MAX -X1
Becomes Extracted amount (call amount) X1 is X1 = (1 + α) X
In the standard, α = 0, in increasing amount α> 0, in decreasing amount α
<0.

The obtained return correction value Z is set in the call amount monitoring counter of the counting means 105, and the motor 78 is rotated in the reverse direction (step 82). As a result, the pressing plate 69 moves forward, and the pressing plate 69 forcibly presses the quantitative extraction bag part 47 of the extraction port part 44 between the cover plate 63 and the extraction port part.
The raw material liquid in the quantitative extraction bag portion 47 of 44 is forcedly returned into the liquid container 41 through the inlet portion 48.

Rotating plate 90 for rotating the motor 78 with the reverse rotation
The slit 89 of the photo interrupter 91 is detected, and every time the slit 89 is detected by the photo interrupter 91, the counting means 10
Subtract from the return correction value Z of the call amount monitoring counter of 5.

When the call-in amount monitoring counter of the counting means 105 reaches the return correction value Z = 0 (step 83), the motor
Stop 78 (step 84). As a result, the standard extraction amount (call amount) X or the increased or decreased extraction amount (call amount) X1
To the predetermined retracted position of the pressing plate 69 corresponding to, and stops. Therefore, the standard extraction amount (call-in amount) X or the increased or decreased extraction amount (call-in amount) X1 of the raw material liquid is introduced into the quantitative extraction bag portion 47 of the extraction port portion 44.

Then, the solenoid 96 is excited, and the step
The extraction operation is performed at 85 to 91. The extraction operation in steps 85 to 91 is performed in steps 16 to 16 in the first beverage extraction mode.
The operation is the same as the extraction operation in steps 58 to 65 in the 23 and second beverage extraction modes, and the description thereof will be omitted.

As described above, after the pressing plate 69 is retracted from the predetermined retracted position corresponding to the predetermined amount of invocation to the last retracted position rearward, the pressing plate 69 is predetermined in correspondence with the predetermined amount of inhalation. By advancing to the retreat position of the raw material liquid from the liquid container 41 into the extraction port portion 44 in a larger amount than a predetermined inhalation amount, the large amount of the inhalation is returned to the liquid container 41 and in the extraction port portion 44. Is a state in which a predetermined amount of raw material liquid has been drawn in, and extraction is performed from this state. Therefore, for example, when the amount of extraction is set small and the pressing plate 69 does not retract much, or the remaining amount of raw material liquid in the liquid container 41. Even if the amount of liquid becomes small, it is possible to reliably draw a predetermined amount of raw material liquid from the liquid container 41 to the extraction port 44, prevent variations in the amount of extraction, and extend the time without extending the time within a predetermined range. Extract a fixed amount of raw material liquid within the extraction time It can be.

In the detecting means 85 for detecting the rotation amount of the cam 81, that is, the moving position of the pressing plate 69 in the above-described embodiment, the slit 89 of the rotating plate 90 is provided in the photo interrupter.
Although it was detected by 91 and was counted by the call amount monitoring counter of the counting means 105, it is also possible to measure it temporally by using a timer, and based on the time during which the motor 78 is rotating, the cam 81 The amount of rotation, that is, the moving position of the pressing plate 69 can be detected. Further, by using a stepping motor as the motor 78, the amount of rotation of the cam 81, that is, the moving position of the pressing plate 69 can be detected from the number of pulses given to the stepping motor.

It is a front view of a liquid container of a back-in-box applied to the liquid extraction apparatus of the above embodiment.

[0104]

According to the liquid extraction device of the first aspect,
After the pressure plate is retracted from the predetermined retracted position corresponding to the predetermined liquid intake amount to the retracted position to which the surplus inhalation amount has been added, the pressure plate is advanced by the surplus inhalation amount, so that the liquid After invoking more than a prescribed amount of liquid into the extraction port from the container, return the amount that has been entrained to the liquid container and bring in a prescribed amount of liquid into the extraction port, and extract from this state. Therefore, for example, even when the amount of extraction is set small and the pressing plate does not retreat too much, or when the remaining amount of the raw material liquid in the liquid container becomes small,
A predetermined amount of liquid can be reliably drawn from the liquid container to the extraction port, the variation of the extraction amount is prevented, and a fixed amount of liquid is extracted within a predetermined extraction time within the normal range without extending the time. be able to.

According to the liquid extracting apparatus of the second aspect, after the pressing plate is retracted to the final retracted position rearward from the predetermined retracted position corresponding to the predetermined liquid suction amount, the pressure plate is moved to the predetermined liquid. By advancing the liquid from the liquid container into the extraction port more than the predetermined inhalation amount by advancing to a predetermined retracted position corresponding to the intake amount, the large amount of the liquid is returned to the liquid container and returned to the extraction port. Since a predetermined amount of liquid has been drawn in and the extraction is performed from this state, for example, when the amount of extraction is set too small and the pressing plate does not move back too much, the remaining amount of the raw material liquid in the liquid container becomes small. Even if it is, it is possible to reliably draw in a predetermined amount of liquid from the liquid container to the extraction port, prevent variation in the amount of extraction, and do not extend the time, and measure the amount within a predetermined extraction time within the normal range. It is possible to extract the body.

According to the third aspect of the liquid extracting apparatus, when the pressing plate is retracted to the predetermined retracted position corresponding to the predetermined liquid suction amount, the pressure plate is retracted to the position beyond the predetermined retracted position. In this case, by pushing the pressing plate forward to a predetermined retracted position corresponding to a predetermined liquid intake amount, a large amount of the liquid that has been drawn into the extraction port portion is returned to the liquid container, and is then stored in the extraction port portion. Is a state in which a predetermined amount of liquid has been drawn in, and extraction is performed from this state, so the amount of liquid drawn in from the liquid container to the extraction port can be reliably set to a predetermined amount, It is possible to prevent variation and to extract a fixed amount of liquid within a predetermined extraction time within a normal range without extending the time.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a liquid extraction device of the present invention,
It is sectional drawing which looks at the liquid extraction apparatus at the time of standby from the side.

FIG. 2 is a cross-sectional view of the liquid extracting device at the time of liquid inhalation according to the same embodiment as viewed from the side.

FIG. 3 is a cross-sectional view of the liquid extraction device at the time of liquid extraction according to the same embodiment as viewed from the side.

FIG. 4 is a cross-sectional view of the liquid extraction device at the time of liquid extraction, which is viewed from the side, following FIG. 3 of the above embodiment.

FIG. 5 is a front view of the liquid container of the back-in-box applied to the liquid extraction device of the above embodiment.

FIG. 6 is a perspective view of a back-in box applied to the liquid extraction apparatus of the above embodiment.

FIG. 7 is a configuration diagram of a beverage extractor to which the liquid extracting apparatus according to the above embodiment is applied.

FIG. 8 is a main configuration diagram of a beverage extraction machine to which the liquid extraction device of the above embodiment is applied.

FIG. 9 is a control block diagram of a beverage extractor to which the liquid extractor of the above embodiment is applied.

FIG. 10 is a flowchart illustrating a brewing operation in the first beverage brewing mode according to the above embodiment.

FIG. 11 is a timing chart for explaining a brewing operation in the first beverage brewing mode according to the above embodiment.

FIG. 12 is a flowchart illustrating overrun correction processing according to the above embodiment.

FIG. 13 is a flowchart illustrating a brewing operation in the second beverage brewing mode according to the above embodiment.

FIG. 14 is a timing chart illustrating a brewing operation in the second beverage brewing mode according to the above embodiment.

FIG. 15 is a flowchart illustrating a brewing operation in the third beverage brewing mode according to the above embodiment.

[Explanation of symbols]

41 Liquid container 44 Extraction port 48 Inlet 49 Outlet 61 Extraction passage body 64 Extraction passage 69 Pressing plate 72, 73 Pinch part 78 Motor as pressing plate driving means 85 Detection means 96 Solenoid as pinching driving means 101 Call-in control Means, call-in correction control means, control means having the functions of extraction control means

Front page continuation (72) Inventor Akio Iida 180 Furuichi-cho, Maebashi, Gunma Prefecture Toshiba Equipment Co., Ltd. (72) Inventor Hidemitsu Imai 180 Furuichi-cho, Maebashi, Gunma Prefecture Toshiba Equipment Co., Ltd. (72) Inventor Tetsuo Fukuoka 1-3-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Within Tokan Kogyo Co., Ltd. (72) Inventor Imai Sanai 2--16, Shibaura, Minato-ku, Tokyo Inside the trading company

Claims (3)

[Claims] 1. A brewing passage body provided with a brewing passage in which a flexible brewing opening of a liquid container for holding a liquid is arranged downward, and one side wall of this brewing passage, It is provided so as to be movable in a direction substantially perpendicular to the other side wall facing the passage, and when retreating out of the extraction passage, it draws the amount of liquid corresponding to the amount of retreat from the liquid container into the extraction port and also into the extraction passage. A pressing plate for extracting the liquid that has been drawn into the extraction port portion when moving forward, a pressing plate driving means for moving the pressing plate forward and backward with respect to the extraction passage, and a forward and backward movement from the upper and lower portions of the pressing plate into the extraction passage, A pair of pinch portions that close the inlet and outlet portions of the extraction port of the liquid container by crimping them to the other side wall of the extraction passage during the forward movement, and selectively one of the pair of pinch portions. To the closed position of the extraction port and at the same time retracting the other to the open position of the extraction port, a detection unit that detects the moving position of the pressing plate, and a pinch drive unit when the liquid is called in. With the upper pinch portion moved to the open position and the lower pinch portion moved to the closed position by the pressing plate driving means, the pressing plate is moved from the predetermined retracted position corresponding to the predetermined liquid suction amount. After retracting to the retracted position to which the surplus suction amount is added, a suction control means for advancing the pressing plate by the surplus suction amount, and an upper pinch by the pinch driving means at the time of extraction after the suction of the liquid. Part to the closed position and the lower pinch part to the open position, and the pressing plate drive means advances the pressing plate. And a liquid extraction control means. 2. A brewing passage body provided with a brewing passage in which a flexible brewing opening of a liquid container for containing a liquid is arranged downward, and one side wall of this brewing passage, It is provided so as to be movable in a direction substantially perpendicular to the other side wall facing the passage, and when retreating out of the extraction passage, it draws the amount of liquid corresponding to the amount of retreat from the liquid container into the extraction port and also into the extraction passage. A pressing plate for extracting the liquid that has been drawn into the extraction port portion when moving forward, a pressing plate driving means for moving the pressing plate forward and backward with respect to the extraction passage, and a forward and backward movement from the upper and lower portions of the pressing plate into the extraction passage, A pair of pinch portions that close the inlet and outlet portions of the extraction port of the liquid container by crimping them to the other side wall of the extraction passage during the forward movement, and selectively one of the pair of pinch portions. To the closed position of the extraction port and at the same time retracting the other to the open position of the extraction port, detection means for detecting the moving position of the pressing plate, and the pinch drive means when the liquid is called in. With the upper pinch portion moved to the open position and the lower pinch portion moved to the closed position, the pressing plate is retracted to the last retracted position, and then the pressing plate is moved to a predetermined position by the pressing plate driving means. A suction control means for advancing to a predetermined retracted position corresponding to the liquid suction amount, and a pinch driving means for moving the upper pinch portion to a closed position and the lower pinch portion at the time of extraction after the liquid is sucked. And an extraction control means for moving the pressing plate forward by the pressing plate driving means. A liquid extraction device. 3. A brewing passage body provided with a brewing passage in which a flexible brewing port of a liquid container for containing a liquid is arranged downward, and a brewing passage forming one side wall of the brewing passage. It is provided so as to be movable in a direction substantially perpendicular to the other side wall facing the passage, and when retreating out of the extraction passage, it draws the amount of liquid corresponding to the amount of retreat from the liquid container into the extraction port and also into the extraction passage. A pressing plate for extracting the liquid that has been drawn into the extraction port portion when moving forward, a pressing plate driving means for moving the pressing plate forward and backward with respect to the extraction passage, and a forward and backward movement from the upper and lower portions of the pressing plate into the extraction passage, A pair of pinch portions that close the inlet and outlet portions of the extraction port of the liquid container by crimping them to the other side wall of the extraction passage during the forward movement, and selectively one of the pair of pinch portions. To the closed position of the extraction port and at the same time retracting the other to the open position of the extraction port, a detection unit that detects the moving position of the pressing plate, and a pinch drive unit when the liquid is called in. With the upper pinch portion moved to the open position and the lower pinch portion moved to the closed position by the pressing plate driving means, the pressing plate is moved to the predetermined retracted position corresponding to the predetermined liquid suction amount. And a retracting control means for retracting the liquid, and when the pressure plate retracted by the pressure plate drive means retracts to a position past a predetermined retract position when the liquid is attracted, the pressure plate drive means causes the pressure plate to move to a predetermined liquid. Call correction control means for advancing to a predetermined retracted position corresponding to the call amount, and at the time of extraction after the liquid is called Extraction control means for moving the upper pinch portion to the closed position and the lower pinch portion to the open position by the pinch driving means, and advancing the pressing plate by the pressing plate driving means. Characteristic liquid extraction device.