JPH114769A - Manufacturing device for coffee beverage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the rise of a material cost and to manufacture a coffee beverage with less astringency and unorganized taste by sucking up and removing silver skin mixed in a coffee powder raw material discharged from a coffee powder raw material discharge port. SOLUTION: For an extraction part 2, a powder chute 20A is arranged above a cylinder 20 and the mixture of coffee beans and hot water supplied from the upper part of the powder chute 20A is supplied to a lower part and received to a discharge port 20C. The silver skin mixed in hot steam and the coffee beans inside the cylinder 20 is sucked up by a blower fan connected through a pipe to the discharge port 20C and removed by the discharge port 20C. Thus, the astringency and the unorganized taste are reduced while suppressing the rise of the material cost and the fine silver skin included in the coffee beans is selectively removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a coffee beverage, and more particularly, to an apparatus for producing a coffee beverage capable of removing bitterness and unpleasant taste contained in a coffee extract.

[0002]

2. Description of the Related Art FIG. 15 shows a conventional coffee beverage production apparatus. The coffee beverage manufacturing apparatus includes a coffee bean canister 61 that supplies roasted coffee beans from a supply port 61a to a chute 62, and a coffee roll supplied with coffee beans from a chute 62 through a coffee bean introduction port 63a. Coffee mill 63, a mill motor 64 for rotating the rolls of the coffee mill 63, and coffee powder ground in the coffee mill 63 by hot water supplied from a hot water valve 81 of a hot water tank 80 via a tube 82. A coffee extractor 66 for supplying a coffee beverage extracted and filtered by a paper filter 67a supplied from a roll 67, a scum bucket 69 for receiving coffee powder extracted from the coffee extractor 66, and a tube 83 from the coffee extractor 66. A storage tank 60 for storing the coffee beverage supplied through the Sugar canister 71 supplied from mouth 71a, cream canister 72 supplying cream from supply port 72a, and sugar or cream supplied from sugar canister 71 or cream canister 72, or both, are received via powder chute 73, A mixer 74 for mixing with a coffee beverage supplied from the storage tank 60, a cup dispenser 75 for supplying a cup 76 on a cup receiving table 77, an excess of the coffee beverage in the storage tank 60, spillage from the cup 76, etc. And a drain bucket 78 for receiving the same.

[0003] In the above arrangement, when there is a request for the sale of a coffee beverage containing sugar and cream, a predetermined amount of coffee beverage is supplied from the storage tank 60 to the mixer 74, and at the same time, the sugar canister 71 and the cream canister 72 supply the coffee beverage. A predetermined amount of sugar and cream are supplied to the mixer 74, and the sugar and cream are mixed with the coffee beverage to make a coffee beverage containing sugar and cream, and the cup 76
Supplied to

On the other hand, when the storage tank 60 is not storing a coffee beverage, the coffee bean canister 61 is supplied from a supply port 61a via a chute 62 to a predetermined amount (generally, 8 kg).
10 g) of coffee beans are supplied to the coffee bean inlet 63a of the coffee mill 63. The mill motor 64 starts rotating when there is a sales request. Accordingly, the coffee mill 63 crushes the supplied coffee beans to a predetermined particle size with a roll and supplies the crushed coffee beans to the coffee extractor 66. When coffee powder is supplied to the coffee extractor 66, hot water is supplied from a hot water tank 80 via a hot water valve 81 and a tube 82 to perform extraction, and the extract is filtered by a paper filter 67a supplied from a roll 67. Become a coffee beverage. The coffee beverage thus provided passes through the storage tank 60 as a part of the passage and is supplied to the mixer 74. Thereafter, by repeating the above-described operation, a coffee beverage containing sugar and cream is supplied to the cup 76.

[0005] Further, there is a coffee beverage production apparatus for supplying coffee beans, which have been previously ground to a predetermined particle size and stored, to a coffee extractor 66 in response to a sales request.

FIG. 16 shows a coffee bean 90 wrapped in a pulp 91, the coffee bean 90 being silver skin.
It is covered by 92 and partially wrapped inside the coffee beans 90 as shown at 93. The silver skin of this part cannot be removed except for grinding and removing the beans after roasting. When silver rind is contained in a coffee beverage, it will exhibit an undesirable astringent taste as a taste.

[0007] For the taste of coffee beverages, control of astringency is important in black coffee beverages without sugar and cream. Conventionally, when it is difficult to control the astringency, when providing a dark black coffee beverage with a little astringency, the usual amount of coffee beans used is 8 to 10 g.
The extraction time was shortened by using 15 to 20 g of coffee beans twice as large as that of the above and utilizing the delay of elution of astringency.

[0008] On the other hand, in a coffee beverage containing sugar, the astringency is masked by the sugar, so that its control becomes less important. Therefore, even when using 8 to 10 g of coffee beans,
By making the extraction time slightly longer, a sufficiently concentrated coffee with sugar can be obtained.

[0009] In addition, silver skin contains many fibers,
When pulverized by a coffee mill, there is a tendency that the fineness is reduced to 60 to 80 mesh or less dust that passes through a paper filter.

[0010] When the amount of silver skin contained in the coffee drink increases in this way, in addition to the black coffee drink, even a coffee drink containing sugar or cream becomes accompanied by an unpleasant sensation, thereby deteriorating the taste. Will be.

[0011] Due to such a background, the conventional coffee beverage manufacturing apparatus can reduce the astringency by increasing the use amount of coffee beans and shortening the extraction time while leaving the problem of eliminating the unpleasant taste. Improves the taste of black coffee beverages.

[0012]

However, according to the conventional coffee beverage manufacturing apparatus, the black coffee beverage is reduced in astringency by increasing the amount of coffee beans used and shortening the extraction time, thereby reducing the astringency. The cost increases. In addition, grinding the coffee beans makes the silver skin finer and mixes into the coffee powder, making it difficult to completely remove the silver skin. Therefore, the taste of black coffee beverages and coffee beverages containing sugar or cream is reduced. Cannot be eliminated. Accordingly, it is an object of the present invention to provide a coffee beverage manufacturing apparatus that manufactures a coffee beverage with less astringency and unpleasant taste while suppressing an increase in material costs.

Another object of the present invention is to provide an apparatus for producing a coffee beverage capable of selectively removing fine silver skin contained in coffee powder.

[0014]

According to the present invention, in order to achieve the above object, a coffee powder raw material obtained by crushing coffee beans to a predetermined particle size is discharged from a coffee powder raw material discharge port located at a stage preceding the extractor. In the apparatus for producing a coffee beverage, which is supplied to the extractor to produce a coffee beverage, the silver peel removal that sucks up and removes the silver peel mixed in the coffee powder raw material discharged from the coffee powder raw material discharge port An apparatus for producing a coffee beverage comprising means is provided.

In the apparatus for producing a coffee beverage of the present invention, the coffee powder raw material discharge port is a discharge port of a powder chute for mixing the coffee powder raw material and hot water and charging the coffee powder raw material into a mixing chamber for supplying the extractor. Preferably, the silver bark removing means has a dome-shaped suction portion surrounding the discharge port of the powder chute. The silver skin removing means may be configured to suck up and remove silver skin mixed in the coffee powder raw material based on rotation of a blower fan that removes steam generated by hot water supplied to the mixing chamber. It is preferable that the removing unit integrally forms the discharge port of the powder chute and the dome-shaped suction unit in the lid member of the extractor.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of an apparatus for producing a coffee beverage according to an embodiment of the present invention. The coffee beverage manufacturing apparatus 1 includes an extraction unit 2 that extracts coffee from a mixture of ground bean (hereinafter simply referred to as coffee beans) and hot water obtained by crushing coffee beans to a predetermined particle size, and coffee beans after coffee extraction. The apparatus has a disposal section 4 for discarding slag and an air pump 5 for sending pressurized air to each section of the apparatus 1.

The extraction unit 2 is supported by a guide rail (not shown) so as to be vertically movable, and is provided with a cylinder 20 for supplying a mixture of coffee beans and hot water supplied from above downward, and a cylinder 20 disposed above the cylinder 20. Coffee beans in cylinder 2
0, a hot water inlet 20B for supplying hot water to the cylinder 20, an exhaust port 20C for removing steam in the cylinder 20 and silver skin mixed in coffee beans, and a powder chute 20A. A dome-shaped cover 20D integrally formed with the cover 20D; a lid 200 formed continuously with the cover 20D and including a partition plate 20E protruding into the cylinder 20; It has a paper filter 21 for filtering the supplied mixture and a beverage receiver 22 for receiving the coffee extract filtered by the paper filter 21.

The cylinder 20 includes a powder chute 2 of the lid 200.
0A, a mixing chamber 20b for receiving hot water supplied from a hot water inlet 20B, and a mixture of coffee beans and hot water discharged from a lower outlet 20c to extract coffee. Communication port 2 with the extraction chamber 20d
It is formed to communicate with 0e. The communication port 20 e is opened and closed by a valve 23, and is connected to the extraction chamber 2.
0d has an inlet 20f for introducing pressurized air from the air pump 5.

The paper filter 21 includes a rotatable shaft 2.
1A is set in a roll shape, and is configured to be pulled out to the left in FIG. 1 by driving of a disposal motor 40 of a disposal unit 4 described later. In addition, the paper filter 21 has a filter detection lever 21B whose base end is rotatably supported and whose middle portion or tip end is always in contact with the roll-shaped paper filter 21;
Filterless sensor such as a microswitch that outputs a detection signal indicating that there is no paper filter to a control unit 6 to be described later and provides an alarm output, etc. 21C
And

The beverage receiver 22 has an upper opening 22a with which the cylinder 20 abuts, and a rubber packing 22A around the opening 22a to prevent the mixture from leaking. In addition, a roller 22B for changing the running direction of the paper filter 21 is provided at the end, a beverage supply pipe 22C for supplying the beverage to the cup side, and a waste pipe 22D for disposing the beverage are provided at a lower part. A beverage supply valve 53 is interposed in the beverage supply pipe 22C.

The extraction unit 2 has an extraction motor 24 and output shafts 25a and 25b projecting from both sides, respectively, and a reduction gear 25 for reducing the rotation speed of the extraction motor 24 to a predetermined rotation speed.
A support plate 26 supporting one end of one output shaft 25a by a bearing 26a, a cylinder cam 27A and a valve cam 27B fixed to the one output shaft 25a,
A cylinder driving plate 28A for driving the cylinder 20, a valve driving plate 28B for driving the valve 23, and a cylinder cam follower 29A attached to the cylinder driving plate 28A
The two ends are respectively locked by a valve cam follower 29B attached to the valve driving plate 28B, a locking member 28a attached to the cylinder driving plate 28A, and a locking member 28b attached to the valve driving plate 28B. The driving plate 28A and the valve driving plate 28B are pulled toward each other to move the cylinder cam follower 29A and the valve cam follower 29B to the cylinder cam 27A and the valve cam 27.
B, a plurality of connecting members 31A, 31B and 31C connecting the cylinder 20 and the cylinder driving plate 28A, and a lever connecting the valve 23 rotatably by a pin 32a on the distal end side. 3
2 and attached to the valve driving plate 28B,
Connecting member 33 rotatably connecting lever 32
And a tension coil spring 34 having both ends locked to the rear end side of the lever 32 and a locking member 28c attached to the valve drive plate 28B. This extraction unit 2
Each of the output shafts 25a and 25b and the output shaft 41a is 1
By rotating, a series of steps of a stirring step, an extraction step, and a slag disposal step are completed.

The speed reducer 25 has a process detecting mechanism for detecting details of each process on the other output shaft 25b side. That is, the other output shaft 25b of the speed reducer 25 is
And third process detection plates 35A, 35B, and 35C
And the first, second and third process detection plates 35
Around the A, 35B, and 35C, there are first and second photosensors and the like for detecting the rotational positions of the first, second, and third process detection plates 35A, 35B, and 35C (for example, turning off by light shielding). And third process detection sensor 36
A, 36B, and 36C are arranged.

The air pump 5 is connected to an inlet 20f of the extraction chamber 20d and an air pipe 52 communicating with the beverage receiver 22. The air pipe 52 is connected to the inlet 20f of the extraction chamber 20d.
, An upper air solenoid valve 50 is provided before the beverage receiver 22, and a lower air solenoid valve 51 is provided before the beverage receiver 22.

FIG. 2A shows the lid 200.
Has a fixing hole 20F which engages with a fixing engagement projection (not shown) provided on the cylinder 20, and a notch 20G for communicating the valve 23. Also, cover 20D
Is formed in a curved shape (dome shape) in order to smooth the flow of air to the exhaust port 20C.

FIG. 2 (b) shows the cover 20 in FIG. 2 (a).
0 shows an AA cross section, and a blower fan 20H is connected to an exhaust port 20C formed integrally with the cover 20D via a pipe 20g. The exhaust port 20C is provided above the lower end of the powder chute 20A (the outlet for coffee beans).

FIG. 3 is a sectional view taken along line AA of FIG. 1. The cylinder cam 27A and the valve cam 27B are fixed to one output shaft 25a by a key 25c. The cam surfaces of the cylinder cam 27A and the valve cam 27B are It is formed as shown in FIG.

FIG. 4 is a perspective view of the process detecting mechanism. The first process detection plate 35A has two projections 35 of about 90 degrees at two places.
a, and the second process detection plate 35B has about 7
The projection 35a of 0 degree is formed, and the third process detection plate 35C is formed.
Has a projection 35a of about 180 degrees in one place.

FIG. 5 is a perspective view of a main part of the disposal unit 4. The disposal unit 4 includes a disposal motor 40 and a reduction gear 4 that reduces the rotation speed of the disposal motor 40 to a predetermined rotation speed.
1, a waste pipe open detection plate 42A and a waste pipe close detection plate 42B attached to the output shaft 41a of the speed reducer 41, and light blocking (for example, O) by the protrusion 42a of the waste pipe open detection plate 42A.
FF) to output an OFF signal indicating the open state (standby state) of the waste pipe 22D, and a waste pipe open detection sensor 43A such as a photo sensor, and a waste pipe closed by the light blocking (for example, OFF) by the protrusion 42a of the waste pipe close detection plate 42B. A waste pipe closing detection sensor 43B such as a photosensor that outputs an OFF signal indicating the closed state of 22D, and a cutout 44a on the circumference, which is attached to the output shaft 41a, and feeds the paper filter 21 by a fixed length. A pair of filter feed rollers 44, 44
And a pair of guide rollers 45, 45 for pressing the paper filter 21 against the pair of filter feed rollers 44, 44 by a spring (not shown), and a rotatable support by a support shaft 46a. 1) 47
A pressing plate 46 made of a leaf spring or the like that presses and closes between the
There is a pressing cam 48 attached to the output shaft 41a and having a projection 48a on the circumference for rotating the pressing plate 46.

FIG. 6 is a control block diagram of the coffee beverage production apparatus of the present invention. The control section 6 for controlling each section of the coffee beverage production apparatus includes a waste pipe open detection sensor 43A,
A waste pipe closing detection sensor 43B, first, second, and third process detection sensors 36A, 36B, 36C, a filterless sensor 21C, an air pump 5, an upper air solenoid valve 50, a lower air solenoid valve 51, a beverage supply valve 53, Extraction motor 2
4. The disposal motor 40 and the blower fan 20H are connected to each other, and further, the main control unit 7 for controlling the sales of coffee drinks is connected.

When a sales signal is input from the main control unit 7, the control unit 6 controls the extraction motor 24, the disposal motor 40, and the air pump 5 to control beverage extraction, that is, the beverage extraction control.
A series of steps including a stirring step, an extraction step, and a slag disposal step are performed.

Next, the operation of the coffee beverage manufacturing apparatus 1 of the present invention will be described with reference to FIGS. FIG.
Are the first, second, and third process detection sensors 36A, 36A.
It is a figure which shows the output signal of 6B, 36C. 8 to 1
4 shows the operation of the present apparatus 1. FIG. 4A shows the position of the main part (cylinder 20, valve 13, etc.), and FIG. 4B shows the waste pipe open detection plate 42A and the waste pipe closed detection. The figure which shows the position of the board 42B and the filter feed roller 44, FIG.
Is a diagram showing the positions of the cylinder cam 27A and the valve cam 27B, and FIG. 3D is a diagram showing the positions of the first, second and third process detection plates 35A, 35B and 35C.

[0032] In (1) a standby state (see FIG. 8) the standby state, the main part of the apparatus 1 is in the standby position P ₁ shown in FIG. 7, in the state shown in FIG. That is, the first, second and third process detection sensors 36A, 36A
6B and 36C are ON, the waste pipe open detection sensor 43A is OFF, and the waste pipe close detection sensor 43B is ON. Filter feed roller 44 and guide roller 45
The paper filter 21 does not move at all even if the filter feed roller 44 rotates. The pressing plate 46 is in contact with the pressing cam 48 by the elastic force of the waste pipe 22D.

(2) Stirring Step (See FIGS. 9 and 10) When the sales signal is input from the main control section 7, the control section 6
When the second process detection sensor 36B is ON, the first and third
Making the transition operation from the standby position P ₁ to the stirring position P ₂ on the basis of the step detection sensor 36A, 36C ON in. That is, the control unit 6 drives the disposal motor 40 to rotate in the normal direction (FIG. 9).
In (a), the output shaft 41a rotates leftward. The drive torque of the discarding motor 40 is transmitted to the output shaft 41a via the speed reducer 41, and the output shaft 41a rotates forward by about 60 ° (left rotation in FIG. 9A), as shown in FIG. 9A. As described above, the projection 48 a of the pressing cam 48 presses the pressing plate 46, so that the waste pipe 22 </ b> D is closed between the pressing plate 46 and the fixed plate 47. The waste pipe closed detection sensor 43B is shielded from light by the projection 42a of the waste pipe closed detection plate 42B, and
An F signal is output to the control unit 6. The control unit 6 stops driving the disposal motor 40 based on the OFF signal from the disposal pipe closed detection sensor 43B.

Subsequently, the control section 6 drives the extraction motor 24 to rotate in the normal direction (drive in which the output shaft 25b rotates leftward in FIG. 10D). The driving torque of the extraction motor 24 is transmitted to the output shafts 25a and 25b via the speed reducer 25,
a and 25b rotate forward (left rotation in FIG. 10D),
As shown in FIG. 10C, when the cylinder cam 27A and the valve cam 27B rotate forward, the cylinder driving plate 28A and the valve driving plate 28B are lowered. When the cylinder driving plate 28A descends, the plurality of connecting members 31A, 3
1B and 31C, the cylinder 20 descends, and the extraction chamber 2
The lower end of Od presses the paper filter 21 against the beverage receiver 22. On the other hand, when the valve driving plate 28B is lowered, the valve 23 is also lowered via the connecting member 33 and the lever 32.
The first process detection sensor 36A includes a first process detection plate 35
The light is shielded by A, and an OFF signal is output to the control unit 6. Subsequently, the second process detection sensor 36B outputs an ON signal to the control unit 6. When the second process detection sensor 36B is ON, the control unit 6 controls the first process detection sensor 36A.
, The drive of the extraction motor 24 is stopped.
The main part of the device 1 reaches the stirring position P ₂ shown in FIG. 7, a state shown in FIG. 10. In the state shown in FIG.
As shown in FIG. 4D, the second and third process detection sensors 3
6B and 36C are the second and third process detection plates 35B and 35C.
Since the light is not shielded by the projection 35a of C, an ON signal is output to the control unit 6, respectively.

The control unit 6 includes a second process detection sensor 36B
Is ON, the first process detection sensor 36A is OFF,
The stirring process is performed based on the ON of the third process detection sensor 36C. That is, control unit 6 outputs a supply request signal for coffee beans and hot water to main control unit 7. This main control unit 7
Coffee beans are supplied from the powder chute 20A and hot water is supplied from the hot water inlet 20B based on the control of the mixing chamber 20A.
mixed in b. The control unit 6 closes the beverage supply valve 53, opens the lower air solenoid valve 51, and drives the air pump 5 in accordance with the supply of coffee beans and hot water. The air pump 5 supplies pressurized air to the beverage receiver 2 through the air pipe 52.
Send to 2. The pressurized air passes through the paper filter 21 and flows into the extraction chamber 20d. When the pressurized air passes through the mixture in the extraction chamber 20d, the flow of the bubbles acts to agitate the mixture. Paper filter 2
By supplying pressurized air from below 1, elution of the components contained in the coffee beans into the hot water is promoted, and the beverage can be extracted in a short time.

FIG. 11 shows the supply of coffee beans. When a sales signal is output from the main control unit 7 to the control unit 6, the blower fan 20H rotates to generate an air flow indicated by an arrow inside the cover 20D. Let it. This air flow acts on the crushed coffee beans C and the silver skin S, and due to the difference in weight, the light silver skin S rides on the air flow, and the cover 20 moves along the partition plate 20E.
It moves above D, is sucked out of the cover 20D from the exhaust port 20C, and is guided to a scum processing section such as a scum bucket through a pipe (not shown) connected to the exhaust port 20C. On the other hand, heavy coffee beans C fall almost vertically from powder chute 20A. The blower fan 20H rotates even after the coffee beans are supplied, and draws steam (not shown) generated by the hot water supplied from the hot water inlet 20B to the outside of the cover 20D from the outlet 20C based on the air flow described above. Remove.

(3) Extraction Step (See FIG. 12) After the stirring time set by the timer has elapsed, the control section 6 drives the extraction motor 24 to rotate forward. The driving torque of the extraction motor 24 is output via the reduction gear 25 to the output shafts 25a, 25b.
And the cylinder cam 27A and the valve cam 27B rotate forward. As shown in FIG.
Since the cam radius of A does not change, the cylinder 20 does not move up and down, but since the cam radius of the valve cam 27B increases, the valve 23 rises and closes the communication port 20e as shown in FIG. The third process detection sensor 36C includes:
The light is shielded by the third process detection plate 35 </ b> C and outputs an OFF signal to the control unit 6. Subsequently, the second process detection sensor 3
6B outputs an ON signal to the control unit 6. The control unit 6
When the second process detection sensor 36B is ON, the driving of the extraction motor 24 is stopped based on the OFF of the third process detection sensor 36C. The main part of the device 1 reaches the extraction position P ₃ shown in FIG. 7, a state shown in FIG. 12. In the state shown in FIG. 12, the first and second process detection sensors 36A and 36B are turned on as shown in FIG.

The controller 6 includes a second process detection sensor 36B
Is ON, the extraction process is performed based on ON of the first process detection sensor 36A and OFF of the third process detection sensor 36C. That is, the control unit 6 opens the upper air solenoid valve 50, closes the lower air solenoid valve 51,
Is opened, and the air pump 5 is driven to supply pressurized air from the air pump 5 through the air pipe 52 from the inlet 20f above the extraction chamber 20d. The mixture in the extraction chamber 20 d is pumped downward by pressurized air from the air pump 5 and filtered by the paper filter 21. The beverage filtered by the paper filter 21 is supplied to the cup via the beverage receiver 22 and the beverage supply pipe 22C. Extraction room 20d
, The pressure in the extraction chamber 20d is increased and the mixture is pushed down to the paper filter 21 side, so that the mixture is separated into beverages and scum in a short time, and the filtration can be performed efficiently. it can.

(4) Slag disposal process (see FIGS. 13 and 14) When the extraction time set by the timer elapses, the control unit 6
Drives the extraction motor 24 to rotate forward. The driving torque of the extraction motor 24 is output via the reduction gear 25 to the output shafts 25a, 25b.
And the cylinder cam 27A and the valve cam 27B rotate forward, and the cylinder driving plate 28A and the valve driving plate 28
B rises, and the cylinder 20 and the valve 23 rise to the top. First and third process detection sensors 36A, 36
C is shielded by the first and third process detection plates 35A and 35C, and outputs an OFF signal to the control unit 6. Subsequently, the second process detection sensor 36B outputs an ON signal to the control unit 6. The control unit 6 determines that the second process detection sensor 36B is
When N, the first and third process detection sensors 36A, 36C
, The drive of the extraction motor 24 is stopped.
The main part of the device 1 reaches the dregs discarding position P ₄ shown in FIG. 7, a state shown in FIG. 13. In the state of FIG.
As shown in (d), the second process detection sensor 36B is ON.
And the coffee bean slag 7 on the paper filter 21
Remains. The control unit 6 determines that the second process detection sensor 36B is
When N, the first and third process detection sensors 36A, 36C
The waste disposal process is performed based on the OFF of. That is, the control unit 6 drives the disposal motor 40 to rotate forward. The drive torque of the disposal motor 40 is reduced by the output shaft 4 via the speed reducer 41.
1a, the output shaft 41a rotates forward, the filter feed roller 44 rotates, and the paper filter 21 is pulled out. When the slag 7 on the paper filter 21 passes through the roller 22B, the slag 7 is broken and separated from the paper filter 21 as shown by the imaginary line in FIG. The waste pipe open detection sensor 43A is shielded from light by the waste pipe open detection plate 42A and outputs an OFF signal to the control unit 6. The control unit 6 includes a waste pipe open detection sensor 43A.
The drive of the disposal motor 40 is stopped based on the OFF signal from. The main part of the device 1 is in the state shown in FIG.

According to the above-described embodiment, the exhaust port 20C connected to the blower fan 20H is provided near the powder chute 20A, and the silver skin mixed in the coffee beans supplied from the powder chute 20A is removed by the blower fan 20H. , So that a coffee drink with less astringency can be provided even with a normal consumption of coffee beans (8 to 10 g). In addition, by forming the dome-shaped cover 20D integrally with the lid 200 so as to promote the suction of silver skin into the exhaust port 20C, the suction efficiency of the exhaust port 20C based on the rotation of the blower fan 20H is improved, and Selective removal of silver skin due to the difference in weight between beans and silver skin can be performed efficiently. The dome-shaped cover 20D is
0 can be formed at the same time as the manufacturing process, and the cost increase required for processing is also small.

The blower fan 20H is connected to the cylinder 2
What is used for removing steam generated at zero may also be used for silver bark removal. In this case, the configuration can be simplified and the manufacturing cost of the beverage extraction device can be reduced.

The present invention is not limited to the above-described embodiment, and various embodiments are possible. For example, an absolute value type encoder may be used as a sensor for detecting a process.

[0043]

As described above, according to the apparatus for producing a coffee beverage of the present invention, the silver skin mixed in the coffee powder raw material supplied from the powder chute is sucked up and removed. Reduces astringency and unpleasantness while keeping up. Further, fine silver skin contained in coffee beans can be selectively removed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a coffee beverage manufacturing apparatus according to an embodiment of the present invention.

2A is a perspective view of a lid having a powder chute, and FIG. 2B is a cross-sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

FIG. 4 is a perspective view showing a process detection mechanism according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a disposal unit according to the embodiment of the present invention.

FIG. 6 is a control block diagram according to the embodiment of the present invention.

FIG. 7 is a timing chart based on output signals of first, second, and third process detection sensors according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating a standby state of the coffee beverage manufacturing device according to the embodiment of the present invention.

FIG. 9 is an explanatory diagram showing a closed state of a waste pipe of the coffee beverage manufacturing apparatus according to the embodiment of the present invention.

FIG. 10 is an explanatory view showing a stirring step of the coffee beverage manufacturing apparatus according to the embodiment of the present invention.

FIG. 11 is an explanatory view showing removal of silver skin.

FIG. 12 is an explanatory diagram illustrating an extraction step of the coffee beverage manufacturing device according to the embodiment of the present invention.

FIG. 13 is an explanatory diagram illustrating a starting state of a slag disposal process of the coffee beverage manufacturing apparatus according to the embodiment of the present invention.

FIG. 14 is an explanatory view showing an end state of a slag disposal process of the coffee beverage manufacturing apparatus according to the embodiment of the present invention.

FIG. 15 is an explanatory view showing a conventional coffee beverage manufacturing apparatus.

FIG. 16 is an explanatory diagram showing coffee beans.

[Explanation of symbols]

 1, coffee beverage production equipment 2, extraction unit 4, disposal unit 5, air pump 6, control unit 20, cylinder 20A, powder chute 20B, hot water inlet 20C, exhaust outlet 20D, cover 20E, partition plate 20F, fixing hole 20G, notch 20H, blower fan 20b, mixing chamber 20c, discharge port 20d, extraction chamber 20e, communication port 20f, introduction port 20g, piping 21, paper filter 21A, shaft 21B, filter detection lever 21C, filterless sensor 22 , Beverage receiver 22A, rubber packing 22B, roller 22C, beverage supply pipe 22D, waste pipe 22a, opening 23, valve 24, extraction motor 25, reduction gear 25a, output shaft 25b, output shaft 25c, key 26, support plate 26a, Bearing 27A, cylinder cam 27B, valve cam 28A, cylinder drive Moving plate 28B, valve driving plate 28a, locking member 28b, locking member 29A, cylinder cam follower 29B, valve cam follower 30, extension coil spring 31A, connecting member 31B, connecting member 31C, connecting member 32a, pin 32, lever 32b, pin 33, connecting member 34, extension coil spring 35A, first process detecting plate 35B, second process detecting plate 35C, third process detecting plate 35a, protrusion 36A, first process detecting sensor 36B, second process Detection sensor 36C, third process detection sensor 40, waste processing motor 41, reduction gear 41a, output shaft 42A, waste pipe open detection plate 42B, waste pipe close detection plate 42a, projection 43A, waste pipe open detection sensor 43B, Waste pipe closing detection sensor 44, filter feed roller 44a, notch 45, guide roller 46a, support shaft 47 , Fixed plate 46, pressing plate 48, pressing cam 48a, projection 50, upper air solenoid valve 51, lower air solenoid valve 52, air pipe 53, beverage supply valve 60, storage tank 61, coffee bean canister 61a, supply port 62, Chute 63, coffee mill 63a, coffee bean inlet 64, mill motor 66, coffee extractor 67, roll 67a, paper filter 69, scum bucket 71, sugar canister 71a, supply port 72, cream canister 72a, supply port 73, powder chute 74, mixer 75, cup dispenser 76, cup 77, cup holder 78, drain bucket 80, hot water tank 81, hot water valve 82, tube 83, tube 90, coffee beans 91, pulp 92, silver skin 93, silver skin 200 ,lid

Claims (4)

[Claims] 1. A coffee for producing a coffee beverage by supplying a coffee powder raw material obtained by crushing coffee beans to a predetermined particle size from a coffee powder raw material discharge port located in front of the extractor and supplying the coffee powder raw material to the extractor. An apparatus for producing a beverage, comprising: a silver skin removing means for sucking up and removing silver skin mixed in the coffee ground material discharged from the coffee ground raw material discharge port. 2. The coffee powder raw material discharge port is a discharge port of a powder chute for charging the coffee powder raw material into a mixing chamber for mixing the coffee powder raw material and hot water and supplying the mixture to the extractor; 2. The coffee beverage producing apparatus according to claim 1, wherein the removing means has a dome-shaped suction portion surrounding the discharge port of the powder chute. 3. A configuration in which the silver skin removing means sucks and removes silver skin mixed in the coffee powder raw material based on rotation of a blower fan that removes steam generated by hot water supplied to the mixing chamber. An apparatus for producing a coffee beverage according to claim 1. 4. The coffee beverage according to claim 2, wherein said silver skin removing means has a structure in which a discharge port of said powder chute and said dome-shaped suction portion are integrally formed on a lid member of said extractor. Manufacturing equipment.