JP2019097834A - Beverage feeder - Google Patents

Abstract

To provide a beverage feeder capable of effectively removing a beverage even when it is fixed to a supply passage.SOLUTION: A beverage feeder, when a milk tank 3 as a beverage tank is replaced by a cleaning tank into which a cleaning agent is charged, supplies water to a main supply passage L2 by a water feeder 7 according to a cleaning instruction, makes the supplied water pass through a heating pipe LH and a return passage L4 to lead the water to the cleaning tank, and performs washing liquid generation processing in which washing liquid is generated by diluting or dissolving the cleaning agent in the cleaning tank, as well as circulation cleaning processing in which the generated washing liquid is sucked from the cleaning tank, and the sucked washing liquid is circulated in a circulation route formed of a part of the main supply passage L2 and the return passage L4 to clean the main supply passage L2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a beverage supply apparatus for supplying a beverage such as milk to a supply target.

  In Patent Document 1, supplying hot milk to a cup by sucking up the milk in a milk container by a pump and passing it through a milk heating device, and sucking up the milk in the milk container by the pump to heat the milk A coffee maker is described which can supply cold milk to the cup by diverting the device. The milk heating apparatus includes a coiled tube through which the milk sucked by the pump passes, and a boiler for heating the coiled tube.

  The coffee maker described in Patent Document 1 passes hot water through the coiled tube after supplying hot milk to the cup and passes rinse water through the coiled tube, and rinses the coiled tube when the pump is in a stopped state. Filling with water prevents the milk from adhering to the inner surface of the coiled tube.

JP, 2014-208316, A

  However, in practice, simply passing the rinse water or filling it with the rinse water can not sufficiently prevent the adhesion of the milk, and in particular the milk component (fat) on the inner surface of the tube (inner surface of the passage) And proteins, etc., have a problem that it is difficult to remove them. In addition, such a subject is not restricted to the apparatus which supplies milk, It is common also about the apparatus which supplies beverages other than milk.

  Then, an object of this invention is to provide the drink supply apparatus which can remove this effectively, even if it is a case where a drink adheres to a supply channel.

  According to one aspect of the present invention, the beverage supply device is a main supply passage connecting the storage tank and the beverage discharge unit, and has a heated passage portion heated by the heating device in the middle thereof, A pump is disposed closer to the storage tank than the heated passage portion, and the main supply passage having a passage opening / closing valve disposed closer to the storage tank than the pump, and the pump in the main supply passage A bypass passage branched from a first branch between the heating passage and the heated passage and joining a first junction between the heated passage and the beverage discharger in the main supply passage; A second junction between the storage tank in the main supply passage and the passage on-off valve branched from a second branch between the heated passage portion and the first junction in the main supply passage Return passage to join A first valve device configured to allow communication between the pump and the passage to be heated or the bypass, and communication between the passage to be heated and the first junction or the return passage. , A water supply device for supplying water to a portion of the main supply passage between the passage on-off valve and the pump, the pump, the passage on-off valve, and the first valve device And a control unit that controls the second valve device and the water supply device. When the storage tank is a beverage tank storing a beverage, the control unit sucks the beverage from the beverage tank according to a beverage supply command, and the sucked beverage is taken as the heated passage portion or the bypass passage. It passes through and is guided to the said beverage discharge part, and the drink supply process which discharges from the said beverage discharge part and supplies to supply object is performed. Further, when the storage tank is a washing tank into which the washing agent is charged, the control unit supplies water to the main supply passage by the water supply device according to a washing command, and the supplied water is supplied to the main supply passage. A cleaning solution generating process for generating a cleaning solution by passing through a heated passage portion and the return passage, leading to the cleaning tank, and diluting or dissolving the cleaning agent in the cleaning tank; A circulating cleaning process for cleaning the main supply passage is performed by circulating the cleaning solution which is sucked from the cleaning tank and sucked and circulated through a circulation passage formed by a part of the main supply passage and the return passage.

  In the beverage supply apparatus, when the storage tank is the washing tank into which the detergent has been introduced (for example, when the beverage tank is replaced with the washing tank into which the detergent is introduced), the water Since water supplied from a supply device can be heated and supplied to the washing tank, a washing solution having high washing effect can be generated in the washing tank. In addition, since the generated cleaning liquid circulates in the circulation path formed by a part of the main supply passage and the return passage while being heated, the case where the beverage is fixed to the main supply passage, etc. Even this can be effectively eliminated.

It is a figure which shows schematic structure of the drink supply apparatus which concerns on one Embodiment of this invention. It is a figure (piping circuit diagram) which shows the structure of the apparatus main body of the said drink supply apparatus. It is a figure for demonstrating the normal operation of the said drink supply apparatus, and is a figure which shows the standby state of the said drink supply apparatus. It is a figure for demonstrating the normal operation of the said drink supply apparatus, and is a figure which shows a 1st drainage process. It is a figure for demonstrating normal operation of the said drink supply apparatus, and is a figure which shows a heating milk supply process. It is a figure for demonstrating the normal operation of the said drink supply apparatus, and is a figure which shows a 2nd drainage process. It is a figure for demonstrating normal operation of the said drink supply apparatus, and is a figure which shows non-heated milk supply processing. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows the state by which the milk tank was substituted by the tank for washing | cleaning. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 1st pre-rinsing process. It is a figure for demonstrating the operation | movement at the time of the piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 2nd pre-rinsing process. It is a figure for demonstrating the operation | movement at the time of the piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a washing | cleaning-liquid production | generation process. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows the state by which the main supply channel was satisfy | filled with the washing | cleaning liquid. It is a figure for demonstrating the operation | movement at the time of the piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a circulation washing process. It is a figure for demonstrating the operation | movement at the time of the piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 1st washing | cleaning-liquid discharge process and a 1st washing process. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 2nd washing | cleaning-liquid discharge process and a 2nd washing process. It is a figure for demonstrating the operation | movement at the time of piping cleaning of the said drink supply apparatus, and is a figure which shows a 1st post rinse process. It is a figure for demonstrating the operation | movement at the time of the piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 2nd post rinse process. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 3rd washing | cleaning-liquid discharge process and a 3rd post rinse process. It is a figure for demonstrating the operation | movement at the time of piping washing | cleaning of the said drink supply apparatus, and is a figure which shows a 4th washing | cleaning-liquid discharge process and a 4th post-rinsing process.

Hereinafter, an embodiment of the present invention will be described based on the attached drawings.
FIG. 1 is a view showing a schematic configuration of a beverage supply apparatus 100 according to an embodiment of the present invention. The beverage supply device 100 according to the embodiment is provided as an optional device of the coffee server 50 that provides coffee in a cup C, and is disposed adjacent to the coffee server 50. And the drink supply apparatus 100 is comprised so that the cup C as supply object may be supplied with the milk or milk foam as a drink according to the supply command from the coffee server 50. As shown in FIG.

  As shown in FIG. 1, the beverage supply device 100 has a control unit 1 and a device body 2.

  The control unit 1 controls the operation of the apparatus main body 2 based on an instruction from the coffee server 50, an instruction input by the operator, and the like. For example, when a milk supply command is input from the coffee server 50, the control unit 1 executes a milk supply process of supplying milk to the cup C by appropriately controlling the constituent devices of the apparatus main body 2, and an input unit not shown. When a cleaning command is input by the operator via the system, the cleaning process is performed by appropriately controlling the constituent devices of the apparatus main body 2.

  FIG. 2 is a diagram (pipe circuit diagram) showing the configuration of the apparatus main body 2. As shown in FIG. 2, the device body 2 has a milk tank 3, a cold storage 4, and a milk discharge unit 5.

  The milk tank 3 is a storage tank storing milk. In the present embodiment, the beverage supply apparatus 100 is configured to issue a milk shortage warning to the operator when the amount of stored milk in the milk tank 3 becomes equal to or less than a predetermined amount, and the amount of stored milk becomes equal to or less than the predetermined amount. The milk tank 3 can be refilled with milk or replaced with a new milk tank 3 with a sufficient storage of milk. Further, as described later, the milk tank 3 is replaced with the washing tank 10 at the time of pipe (passage) washing. The washing tank 10 may be a dedicated tank, or may be a milk tank 3 which does not store milk.

  The cold storage 4 accommodates at least the milk tank 3 and holds the milk stored in the milk tank 3 in a predetermined low temperature state. In the present embodiment, the cold storage 4 is configured to maintain the inside temperature in a range of 2 to 5 ° C., for example.

  The milk discharger 5 mainly discharges milk or milk foam and supplies it to the cup C. In the present embodiment, when the milk discharge portion 5 supplies milk or milk foam to the cup C, it moves from the retracted position shown by the solid line in FIG. 2 to the supply position above the cup C shown by the one-dot chain line in FIG. It is configured to move.

  The milk tank 3 and the milk discharger 5 are connected by a milk supply passage L1. The milk supply passage L1 is a passage mainly for introducing milk or milk foam to the milk discharge unit 5. The milk supply passage L1 includes a main supply passage L2 and a bypass passage L3.

  The main supply passage L2 has a heating pipe (heated passage portion) LH at least a part of which is heated by the heating device 6 while connecting the milk tank 3 and the milk discharge unit 5 ing. The heating device 6 heats the milk or milk foam passing through the heating pipe LH by heating at least a part of the heating pipe LH. In the present embodiment, the heating device 6 heats the heating pipe LH at a temperature of 70 to 80 ° constantly (that is, even in the standby state) while the power supply of the beverage supply device 100 is turned on. Is configured.

  The expander E is disposed closer to the milk tank 3 than the heating pipe LH in the main supply passage L2, and the milk in the milk tank 3 is sucked and discharged to the milk tank 3 from the expander E. A first pump P1 is provided, and an electromagnetic drive type first open / close valve V1 for opening and closing the main supply passage L2 is disposed closer to the milk tank 3 than the first pump P1. A milk tank is provided than the first open / close valve V1. A first flow meter S1 is disposed on the third side.

  The bypass passage L3 branches from a branch portion (first branch portion) B1 between the first pump P1 and the heating pipe LH in the main supply path L2 (here, between the expander E and the heating pipe LH). A joining portion (first joining portion) J1 between the heating pipe LH and the milk discharger 5 in the main supply passage L2 is joined. That is, the bypass passage L3 is a passage for bypassing the heating pipe LH.

  An electromagnetic drive type first switching valve SV1 is disposed in the first branch portion B1. The first switching valve SV1 is configured of, for example, a three-way valve. The first switching valve SV1 causes the first pump P1 to communicate with the heating pipe LH or the bypass passage L3, in other words, the communication destination (of the discharge port of the first pump P1) with the heating pipe LH and the bypass It is configured to selectively switch between the passage L3 and the passage L3.

  Further, in the present embodiment, the milk tank 3 and the third supply passage L2 in the main supply passage L2 are branched from the branch portion (second branch portion) B2 between the heating pipe LH and the first joining portion J1 in the main supply passage L2. A return passage L4 is provided which merges with a merging portion (second merging portion) J2 between the first pump P1 (here, between the milk tank 3 and the first on-off valve V1). A first check valve CV1 is disposed in the vicinity of the second junction J2 in the return passage L4 to block the flow from the second junction J2 toward the second branch B2. The return passage L4 is a passage that is mainly used at the time of pipe (passage) cleaning.

  An electromagnetic drive type second switching valve SV2 is disposed in the second branch portion B2. The second switching valve SV2 is configured of, for example, a three-way valve. The second switching valve SV2 communicates the heating pipe LH with the first junction portion J1 or the return passage L4, in other words, the communication destination of the heating pipe LH (the outlet side of the heating pipe LH) And the return passage L4 are configured to switch to selection.

  Furthermore, in the present embodiment, the main supply passage L2 is branched from the branch portion (third branch portion) B3 between the first junction portion J1 and the milk discharge portion 5 and connected to a waste liquid tank or the like (not shown). A discharge passage L5 is provided.

  An electromagnetic drive type third switching valve SV3 is disposed in the third branch portion B3. The third switching valve SV3 is configured of, for example, a three-way valve. The third switching valve SV3 communicates the first merging portion J1 with the milk discharge portion 5 or the discharge passage L5, in other words, the communication destination of the first merging portion J1 corresponds to the milk discharge portion 5 and the discharge passage L5. It is configured to selectively switch between them.

  More specifically, in the present embodiment, (the apparatus main body 2 of) the beverage supply apparatus 100 connects the milk tank 3 and the suction port of the first pump P1 and, in the middle thereof, the first flow meter S1 and the first flow meter S1. The first pipe L11 in which the on-off valve V1 is disposed, the discharge port of the first pump P1 and the inlet of the first switching valve (three-way valve) SV1 are connected and the expander E is disposed in the middle thereof A third pipe as a heating pipe LH which connects the second pipe L12, one outlet of the first switching valve SV1 and the inlet of the second switching valve (three-way valve) SV2 and is heated by the heating device 6 The pipe L13, the fourth pipe L14 connecting the outlet of one of the second switching valve SV2 and the inlet of the third switching valve (three-way valve) SV3, the outlet of one of the third switching valve SV3 and the milk discharger And the other of the first switching valve SV1. A portion between the milk tank 3 and the first on-off valve V1 in the first pipe L11, the sixth pipe L16 connecting the mouth and the middle portion of the fourth pipe L14, the other outlet of the second switching valve SV2 And an eighth pipe L18 connected to the other outlet of the third switching valve SV3.

  The first pipe L11, the first pump P1, the second pipe L12, the first switching valve SV1, the third pipe L13 (warming pipe LH), the second switching valve SV2, the fourth pipe L14, and the third switching valve SV3. And the fifth pipe L15 form the main supply passage L2, and the intermediate portion of the fourth pipe L14 corresponds to the first joining portion J1, and between the milk tank 3 and the first on-off valve V1 in the first pipe L11. The portion corresponds to the second merging portion J2. Further, a bypass passage L3 is formed by the sixth piping L16, a return passage L4 is formed by the seventh piping L17, and a discharge passage L5 is formed by the eighth piping L18.

  Moreover, the apparatus main body 2 has the water supply apparatus 7 which supplies water to the milk supply passage L1 (main supply passage L2). The water supply device 7 includes a water tank 8, a water supply passage L6, and a second pump P2.

  The water tank 8 is a storage tank storing water. The water tank 8 constantly stores a predetermined amount of water by supplying water appropriately from a water supply source (not shown). The water stored in the water tank 8 is mainly water (rinsing water) for rinsing and cleaning the milk supply passage L1 and the like, and water (filling water) for filling the milk supply passage L1 and the like when the beverage supply device 100 stands by. It is used as

  The water supply passage L6 connects the water tank 8 and the milk supply passage L1 (main supply passage L2). Specifically, the water supply passage L6 is a connection portion (first connection portion) Z1 between the water tank 8 and the first on-off valve V1 and the first pump P1 in the milk supply passage L1 (main supply passage L2). Connected.

  In the water supply passage L6, a second flowmeter S2 in order from the water tank 8 toward the first connection portion Z1, a second pump P2 for sucking and discharging the water in the water tank 8, and a water supply passage L6 An electromagnetic drive-type second on-off valve V2, a second check valve CV2, and a third check valve CV3 are disposed. The second check valve CV2 and the third check valve CV3 block the flow from the first connection portion Z1 toward the water tank 8.

  Further, a branch portion (fourth branch portion) B4 between the water tank 8 and the second pump P2 is branched into the water supply passage L6, and a junction portion between the second pump P2 and the second on-off valve V2 A water return passage L61 is provided which joins the third merging portion J3. In the water return passage L61, a fourth check valve CV4 that blocks the flow from the fourth branch B4 to the third junction J3 while allowing the flow from the third junction J3 to the fourth branch B4 is provided. It is provided.

  Furthermore, the device body 2 has an air supply device 9 for supplying air to the milk supply passage L1 (main supply passage L2). The air supply device 9 supplies air for producing milk foam to generate milk foam, discharge air for discharging water and the like in the milk supply passage L1. The air supply device 9 includes an air supply passage L7 and a third pump P3 disposed in the air supply passage L7.

  The air supply passage L7 is connected to an air intake port (not shown) whose one end is open to the outside. The air supply passage L7 branches into a first passage L71 and a second passage L72 at a branch portion (a fifth branch portion) B5 downstream of the third pump P3 and merges with the downstream side of the fifth branch portion B5 After joining at the second joint portion J4, the other end portion is connected to the second joint portion Z2 between the second check valve CV2 and the third check valve CV3 in the water supply passage L6. Connected Therefore, a part of the water supply passage L6 (a part from the second connection portion Z2 to the first connection portion Z1) also has a function as an air supply passage.

  In the first passage L71, an electromagnetic drive type third on-off valve V3 and a fifth check valve CV5 for opening and closing the first passage L71 are disposed in order from the fifth branch B5 to the fourth junction J4. ing. The fifth check valve CV5 blocks the flow from the fourth junction J4 to the fifth branch B5. The first passage L71 is opened mainly when the exhaust air is supplied.

  In the second passage L72, an electromagnetic drive type flow control valve FCV and a sixth reverse that adjust the opening degree (passage cross-sectional area) of the second passage L72 in order from the fifth branch B5 to the fourth junction J4. A stop valve CV6 is provided. The sixth check valve CV6 blocks the flow from the fourth junction J4 to the fifth branch B5. The second passage L72 is opened mainly when the air for milk foam generation is supplied, and its opening degree is adjusted by the flow control valve FCV. Then, in the present embodiment, the second passage L72 is opened at a predetermined opening degree, air is supplied to the main supply passage L2, the milk and the air are mixed in the main supply passage L2, and then the expander E Milk foam is produced by passing through.

Next, the normal operation of the beverage supply device 100 will be described with reference to FIGS.
First, FIG. 3 shows the standby state of the beverage supply device 100. As shown in FIG. As shown in FIG. 3, in the standby state of the beverage supply apparatus 100 according to the present embodiment, the space from the milk tank 3 to the first on-off valve V1 in the main supply passage L2 is filled with milk, and the air supply is performed. The other passage portion of the passage L7 (first passage L71) excluding the upstream side of the third on-off valve V3 and the upstream side of the flow rate adjustment valve FCV in the air supply passage L7 (second passage L72) is water (fill water) Is filled with In addition, when the beverage supply apparatus 100 is in the standby state, the milk discharge unit 5 is in the retracted position, the first to third on-off valves V1 to V3 and the flow rate adjustment valve FCV are closed, and the first switching valve SV1 is The first pump P1 communicates with the bypass passage L3 (sixth pipe L16), and the second switching valve SV2 communicates the heating pipe LH (third pipe L13) with the first junction J1. The third switching valve SV3 communicates the first junction J1 with the discharge passage L5 (eighth pipe L18).

  The control unit 1 controls the first switching valve SV1 so that the first pump P1 and the heating pipe LH (third pipe L13) communicate with each other when the warm milk supply command is input from the coffee server 50 in the standby state. The third on-off valve V3 is opened, and the first pump P1 and the third pump P3 are operated. Then, the filling water from the first connection portion Z1 to the third branch B3 (third switching valve SV3) in the main supply passage L2, the filling water in the discharge passage L5 (eighth pipe L18), the water supply passage L6 The filling water downstream of the second connection portion Z2 and the filling water in the air supply passage L7 are discharged from the discharge passage L5 (eighth pipe L18). Then, the filling water from the first connection portion Z1 to the third branch B3 (third switching valve SV3) in the main supply passage L2, the filling water in the discharge passage L5 (eighth pipe L18), the water supply passage L6 The first pump P1 and the third pump P3 are stopped when a predetermined time sufficient to discharge the filling water downstream of the second connection portion Z2 and the filling water in the air supply passage L7 has elapsed. Thereafter, the control unit 1 controls the third switching valve SV3 so that the first junction J1 and the milk discharge unit 5 communicate with each other, and operates the first pump P1 and the third pump P3 again. Then, the filling water (filling water in the fifth pipe L15) from the third branch B3 (third switching valve SV3) in the main supply passage L2 to the milk discharging part 5 is discharged from the milk discharging part 5 and discharged Be done. Then, a predetermined time sufficient to discharge the filling water (the filling water in the fifth pipe L15) from the third branch B3 (the third switching valve SV3) to the milk discharger 5 in the main supply passage L2 If it passes, the 1st pump P1 and the 3rd pump P3 will be stopped, and the 3rd on-off valve V3 will be closed.

  Thereby, as shown in FIG. 4, the filling water between the first connection portion Z1 in the main supply passage L2 and the milk discharge portion 5, the filling water in the discharge passage L5 (eighth pipe L18), the water supply passage The filling water downstream of the second connection portion Z2 in L6 and the filling water in the air supply passage L7 are discharged and eliminated. That is, control part 1 (drink supply device 100) performs "the 1st drainage process" which discharges the filling water in the passage used in order to supply warm milk.

  When the first drainage process is completed, the control unit 1 moves the milk discharge unit 5 from the retracted position to the supply position, opens the first on-off valve V1, and operates the first pump P1. Then, as shown by the arrow in FIG. 5, the milk in the milk tank 3 is aspirated by the first pump P1, and the aspirated milk passes through the main supply passage L2, that is, the first pipe L11, the first Milk discharge part 5 via 2 piping L12, 1st switching valve SV1, 3rd piping L13 (warming pipe LH), 2nd switching valve SV2, 4th piping L14, 3rd switching valve SV3 and 5th piping L15 , And discharged from the milk discharge unit 5 and supplied to the cup C. Then, when the amount of milk sucked from the milk tank 3 by the first pump P1 reaches a predetermined amount, the first on-off valve V1 is closed, the third on-off valve V3 is opened, and the third pump P3 is operated. As a result, the milk in the piping is pushed by the air and guided to the milk discharge unit 5, discharged from the milk discharge unit 5 and supplied to the cup C. That is, the control unit 1 (beverage supply device 100) causes the milk sucked from the milk tank 3 to pass through the heating pipe LH (third pipe L13) and leads it to the milk discharge unit 5, and discharges it from the milk discharge unit 5. The “heated milk supply process” for supplying the heated milk to the cup C is performed.

  Then, the control unit 1 guides the milk in the passage (piping) from the start of the operation of the third pump P3 to the milk discharge unit 5 by air and discharges the milk from the milk discharge unit 5 for the first predetermined time. When it elapses, the first pump P1 and the third pump P3 are stopped, the third on-off valve V3 is closed, the milk discharge unit 5 is moved from the supply position to the retracted position, and the heated milk supply processing is ended.

  When the heating milk supply process is completed, the control unit 1 controls the third switching valve SV3 so that the first merging portion J1 and the discharge passage L5 (eighth pipe L18) communicate with each other, and the second on-off valve V2 Are opened to operate the first pump P1 and the second pump P2. Then, the water in the water tank 8 is sucked by the second pump P2, and the sucked water is supplied to (the first connection portion Z1 of) the main supply passage L2 via the water supply passage L6. The water supplied to the main supply passage L2 is discharged through the portion from the first connection portion Z1 to the third branch portion B3 (third switching valve SV3) in the main supply passage L2 as a discharge passage L5 (eighth pipe L18) And is discharged from the discharge passage L5 (eighth pipe L18). Thereafter, the control unit 1 controls the third switching valve SV3 to stop the first pump P1 and the second pump P2 and to cause the first joining portion J1 and the milk discharge portion 5 to communicate with each other. The second pump P2 is operated again. Then, the water sucked by the second pump P2 and supplied to (the first connection portion Z1 of) the main supply passage L2 via the water supply passage L6 is more downstream than the first connection portion Z1 in the main supply passage L2 It is guided to the milk discharge part 5 via the part of, and discharged from the milk discharge part 5 (discharged). Here, specifically, the portion downstream of the first connection portion Z1 in the main supply passage L2 is a portion downstream of the first connection portion Z1 of the first pipe L11, the second pipe L12, The first switching valve SV1, the third pipe L13 (heating pipe LH), the second switching valve SV2, the fourth pipe L14, the third switching valve SV3 and the fifth pipe L15. As a result, most of the passages through which the milk has passed in the heated milk feeding process are rinsed by the passage of water (adhered milk is washed away).

  Then, when a sufficient amount of water for rinsing and cleaning the most part of the passage through which milk has passed in the heating milk supply process is sucked from the water tank 8 by the second pump P2, the control unit 1 first 2) The pump P2 is stopped, and then the first pump P1 is stopped to close the second on-off valve V2. Thus, between the first on-off valve V1 in the main supply passage L2 to the milk discharge unit 5, the upstream side of the third on-off valve V3 in the air supply passage L7 and the upstream side of the flow rate adjustment valve FCV in the air supply passage L7 It is kept filled with water, and the beverage supply apparatus 100 is in the standby state (FIG. 3).

  That is, after completion of the heated milk supply process, the control unit 1 (beverage supply apparatus 100) rinses and cleans, with water, most of the milk supply passage L1 through which the milk has passed in the heated milk supply process. The "first rinsing process" and the "first water filling process" of filling (replenishing) water to the portion where the filling water has been discharged by the first drainage process are performed.

  When the control unit 1 inputs a supply command of warm milk foam from the coffee server 50 in the standby state, after completion of the first drainage process, it replaces the heated milk supply process and supplies heated milk foam shown below. Execute the process

  That is, the control unit 1 moves the milk discharge unit 5 from the retracted position to the supply position, opens the first on-off valve V1, opens the flow rate adjustment valve FCV at a predetermined opening degree, and the first pump P1 and the third pump P1. The pump P3 is operated. Then, the milk in the milk tank 3 is aspirated by the first pump P1, and the aspirated milk is mixed with air in the first pipe L11, and passes through the second pipe L12 (inflator E) to form milk foam and the like. Become. The said milk foam is the milk discharge part 5 via 1st switching valve SV1, 3rd piping L13 (heating pipe LH), 2nd switching valve SV2, 4th piping L14, 3rd switching valve SV3, and 5th piping L15. , And discharged from the milk discharge unit 5 and supplied to the cup C. Then, when the amount of milk sucked from the milk tank 3 by the first pump P1 reaches a predetermined amount, the first on-off valve V1 is closed, and thereafter, when the first predetermined time passes, the first pump P1 and the third pump P3 is stopped, the third on-off valve V3 is closed, the milk discharge unit 5 is moved from the supply position to the retraction position, and the heated milk foam supply process is ended.

  Here, the passage through which milk passes in the heated milk supply process and the passage through which milk or milk foam passes in the heated milk foam supply process are the same. Therefore, when the heating milk foam supply process is completed, the control unit 1 executes the first rinse process and the first water filling process, whereby the beverage supply apparatus 100 is in the standby state.

  When the control unit 1 receives a cold milk supply command from the coffee server 50 in the standby state, the control unit 1 opens the third on-off valve V3 and operates the first pump P1 and the third pump P3. Then, the filling water from the first connection portion Z1 to the first branch B1 (first switching valve SV1) in the main supply passage L2, the filling water in the bypass passage L3 (sixth pipe L16), the main supply passage L2 Filled water from the first junction J1 to the third branch B3 (third switching valve SV3), filled water in the discharge passage L5 (eighth pipe L18), second connection Z2 in the water supply passage L6 The charge water on the downstream side of the air supply passage L7 and the charge water in the air supply passage L7 are discharged from the discharge passage L5 (eighth pipe L18). Then, the filling water from the first connection portion Z1 to the first branch portion B1 (first switching valve SV1) in the main supply passage L2, the filling water in the bypass passage L3 (sixth pipe L16), the main supply passage L2 Filled water from the first junction J1 to the third branch B3 (third switching valve SV3), filled water in the discharge passage L5 (eighth pipe L18), second connection Z2 in the water supply passage L6 The first pump P1 and the third pump P3 are stopped when a predetermined time sufficient for discharging the charge water on the more downstream side and the charge water in the air supply passage L7 has elapsed. Thereafter, the control unit 1 controls the third switching valve SV3 so that the first junction J1 and the milk discharge unit 5 communicate with each other, and operates the first pump P1 and the third pump P3 again. Then, the filling water (filling water in the fifth pipe L15) from the third branch B3 (third switching valve SV3) in the main supply passage L2 to the milk discharging part 5 is discharged from the milk discharging part 5 and discharged Be done. Then, a predetermined time sufficient to discharge the filling water (the filling water in the fifth pipe L15) from the third branch B3 (the third switching valve SV3) to the milk discharger 5 in the main supply passage L2 If it passes, the 1st pump P1 and the 3rd pump P3 will be stopped, and the 3rd on-off valve V3 will be closed.

  Thereby, as shown in FIG. 6, the filling water from the first connection portion Z1 to the first branch portion B1 (first switching valve SV1) in the main supply passage L2, the bypass passage L3 (sixth pipe L16) , Filling water between the first junction J1 in the main supply passage L2 to the milk discharge portion 5, filling water in the discharge passage L5 (eighth pipe L18), second connection portion in the water supply passage L6 The filling water downstream of Z2 and the filling water in the air supply passage L7 are discharged and eliminated. That is, control part 1 (drink supply device 100) performs "the 2nd drainage process" which discharges the filling water in the passage used in order to supply cold milk.

  When the second drainage process is completed, the control unit 1 moves the milk discharge unit 5 from the retracted position to the supply position, opens the first on-off valve V1, and operates the first pump P1. Then, as shown by the arrow in FIG. 7, the milk in the milk tank 3 is sucked by the first pump P1, and the sucked milk is drawn into the first pipe L11, the second pipe L12, the first switching valve SV1, and the bypass. It is led to the milk discharge unit 5 via the passage L3 (sixth pipe L16), a portion on the downstream side of the first junction J1 of the fourth pipe L14, the third switching valve SV3 and the fifth pipe L15, and the milk discharge It is discharged from the part 5 and supplied to the cup C. Then, when the amount of milk sucked from the milk tank 3 by the first pump P1 reaches a predetermined amount, the first on-off valve V1 is closed, the third on-off valve V3 is opened, and the third pump P3 is operated. As a result, the milk in the passage (pipe) is pushed by the air and guided to the milk discharge unit 5, discharged from the milk discharge unit 5, and supplied to the cup C. That is, the control unit 1 (beverage supply device 100) causes the milk sucked from the milk tank 3 to pass through the bypass passage L3 (sixth pipe L16) and leads it to the milk discharge unit 5, and discharges it from the milk discharge unit 5. The “non-heated milk supply process” for supplying the non-heated (cold in the refrigerator 4) milk to the cup C is performed.

  Then, the control unit 1 guides the milk in the passage (piping) from the start of the operation of the third pump P3 to the milk discharge unit 5 by air and discharges the milk from the milk discharge unit 5 for a second predetermined time. When it passes, the first pump P1 and the third pump P3 are stopped, the third on-off valve V3 is closed, the milk discharge unit 5 is moved from the supply position to the retraction position, and the non-heated milk supply process is ended. .

  When the non-heated milk supply process is completed, the control unit 1 opens the second on-off valve V2 to operate the first pump P1 and the second pump P2. Then, the water in the water tank 8 is sucked by the second pump P2, and the sucked water is supplied to (the first connection portion Z1 of) the main supply passage L2 via the water supply passage L6. The water supplied to the main supply passage L2 is downstream of the first connection portion Z1 of the first pipe L11, the second pipe L12, the first switching valve SV1, the sixth pipe L16 (bypass path L3), the fourth pipe It is led to the milk discharge part 5 via the part more downstream than the 1st confluence part J1 of L14, 3rd switching valve SV3, and the 5th piping L15, and is discharged from the milk discharge part 5 (discharged). As a result, most of the passages through which the milk has passed in the non-warmed milk feeding process are rinsed by the passage of water (adhered milk is washed away).

  Then, when a sufficient amount of water for rinsing and cleaning the most part of the passage through which the milk has passed in the non-heated milk supply process is sucked from the water tank 8 by the second pump P2, the control unit 1 first The second pump P2 is stopped, and then the first pump P1 is stopped to close the second on-off valve V2. As a result, between the first on-off valve V1 and the first switching valve SV1 in the main supply passage L2, between the first merging portion J1 and the milk discharge portion 5 in the bypass passage L3 and the main supply passage L2, the water supply passage L6. The downstream side of the second connection portion Z2 at the upstream side, the upstream side of the third on-off valve V3 in the air supply passage L7, and the upstream side of the flow control valve FCV in the air supply passage L7 are maintained filled with water, The supply device 100 is in the standby state.

  That is, after completion of the non-heated milk supply process, the control unit 1 (beverage supply apparatus 100) rinses most of the milk supply passage L1 through which the milk has passed in the non-heated milk supply process with water. A "second rinse process" for cleaning and a "second water fill process" for filling (replenishing) water at a portion where the filling water has been discharged by the second drainage process are performed.

  When the control unit 1 inputs a cold milk foam supply command from the coffee server 50 in the standby state, after the second drainage process ends, the non-warmed milk shown below is substituted for the non-heated milk supply process. Execute form supply processing.

  That is, the control unit 1 moves the milk discharge unit 5 from the retracted position to the supply position, opens the first on-off valve V1, opens the flow rate adjustment valve FCV at a predetermined opening degree, and the first pump P1 and the third pump P1. The pump P3 is operated. Then, the milk in the milk tank 3 is aspirated by the first pump P1, and the aspirated milk is mixed with air in the first pipe L11, and becomes milk foam by passing through the second pipe L12 (inflator E). The milk foam passes through the first switching valve SV1, the sixth pipe L16 (bypass passage L3), the downstream side of the fourth joining portion J1 of the fourth pipe L14, the third switching valve SV3 and the fifth pipe L15. Then, it is guided to the milk discharge unit 5 and discharged from the milk discharge unit 5 and supplied to the cup C. Then, when the amount of milk sucked from the milk tank 3 by the first pump P1 becomes a predetermined amount, the first on-off valve V1 is closed, and thereafter, when the second predetermined time passes, the first pump P1 and the third pump P3 is stopped, the third on-off valve V3 is closed, the milk discharge unit 5 is moved from the supply position to the retraction position, and the heated milk foam supply process is ended.

  Here, the passage through which milk passes in the non-heated milk supply process and the passage through which milk or milk foam passes in the non-heated milk foam supply process are the same. Therefore, when the non-heated milk foam supply process is completed, the control unit 1 executes the second rinse process and the second water filling process, whereby the beverage supply device 100 is in the standby state.

  Next, the operation at the time of piping cleaning (at the time of passage cleaning) of the beverage supply device 100 will be described with reference to FIGS. 3 and 8 to 19. When the beverage supply apparatus 100 is in a standby state (FIG. 3), the operator replaces the milk tank 3 with the cleaning tank 10, and then the operator performs the cleaning via the input unit. It is done by inputting a command.

  FIG. 8 shows a state in which the milk tank 3 has been replaced by the washing tank 10 by the operator. As shown in FIG. 8, in the present embodiment, the milk tank 3 is replaced with a washing tank 10 into which an alkaline cleaner (stock solution or tablet) D is charged. Then, as described later, the cleaning agent D is diluted or dissolved with water (warm water) to generate an alkaline cleaning solution (cleaning water) in the cleaning tank 10.

  When the control unit 1 receives the cleaning command, the control unit 1 opens the second on-off valve V2 and operates the first pump P1 and the second pump P2. Then, as shown in FIG. 9, the water in the water tank 8 is sucked by the second pump P2, and the sucked water is fed to (the first connection portion Z1 of) the main supply passage L2 via the water supply passage L6. Supplied. The water supplied to the main supply passage L2 is a portion downstream of the first connection portion Z1 of the first piping L11, the second piping L12, the first switching valve SV1, the sixth piping L16 (bypass passage L3), the sixth It is led to the eighth piping L18 (discharge passage L5) via the portion downstream of the first junction portion J1 of the fourth piping L14 and the third switching valve SV3, and via the eighth piping L18 (discharge passage L5) Exhausted.

  Thereby, in the non-heated milk supply process (the non-heated milk foam supply process) of the milk supply passage L1, most of the passage through which the milk passes is rinsed by the water passing therethrough. That is, the control unit 1 (beverage supply device 100) uses water in advance for most of the passage through which milk passes in the non-heated milk supply processing (the non-heated milk foam supply processing) in the milk supply passage L1. Execute the "first pre-rinsing process" for rinsing.

  Then, the second pump P2 sucks a sufficient amount of water from the water tank 8 by the second pump P2 to rinse and wash most of the passage through which the milk passes in the non-heated milk supply process (the non-heated milk foam supply process). Then, the control unit 1 stops the first pump P1 and the second pump P2 to end the first pre-rinsing process.

  When the first pre-rinsing process is completed, the control unit 1 controls the first switching valve SV1 so that the first pump P1 and the heating pipe LH (third pipe L13) communicate with each other, and the first merging portion J1 and The third switching valve SV3 is controlled to communicate with the milk discharge unit 5, and the first pump P1 and the second pump P2 are operated. Then, as shown in FIG. 10, the water in the water tank 8 is suctioned by the second pump P2, and the suctioned water is supplied to the main supply passage L2 (the first connection portion Z1 of the main supply passage L2) via the water supply passage L6. Supplied to The water supplied to the main supply passage L2 is guided to the milk discharge unit 5 via the portion on the downstream side of the first connection portion Z1 in the main supply passage L2, and is discharged from the milk discharge unit 5 (discharged ).

  Thereby, in the heated milk supply process (the heated milk foam supply process) in the milk supply passage L1, most of the passage through which the milk passes is rinsed and cleaned by the water passing therethrough. That is, the control unit 1 (beverage supply device 100) rinses most of the passage through which milk passes in the heated milk supply process (the heated milk foam supply process) in the milk supply passage L1 with water in advance. Execute the second pre-rinse process.

  Then, a sufficient amount of water is suctioned from the water tank 8 by the second pump P2 to rinse and wash most of the passage through which the milk passes in the heated milk supply process (the heated milk foam supply process). The first pump P1 and the second pump P2 are stopped to complete the second pre-rinsing process.

  When the second pre-rinsing process is completed, the control unit 1 controls the second switching valve SV2 so that the heating pipe LH (third pipe L13) and the return passage L4 (seventh pipe 17) communicate with each other. The first pump P1 and the second pump P2 are operated. Then, as shown in FIG. 11, the water in the water tank 8 is suctioned by the second pump P2, and the suctioned water passes through the water supply passage L6 (the first connection portion Z1 of the main supply passage L2). Supplied to The water supplied to the main supply passage L2 is a portion downstream of the first connection portion Z1 of the first pipe L11, a second pipe L12, a first switching valve SV1, a heating pipe LH (third pipe L13), It is supplied to the washing tank 10 via a portion between the second switching valve SV2, the return passage L4 (seventh pipe L17), and the second joining portion J2 of the first pipe L11 and the washing tank 10.

  Thereby, the cleaning agent D is diluted or dissolved to generate a cleaning solution (alkaline cleaning solution) in the cleaning tank 10, and the cleaning tank 10 stores the cleaning solution. That is, the control unit 1 (beverage supply device 100) generates the cleaning solution in the cleaning tank 10 by diluting or dissolving the cleaning agent D in the cleaning tank 10 with the heated water (warm water). Execute "cleaning fluid generation processing".

  Then, when sufficient water to generate the necessary amount of cleaning liquid is sucked from the water tank 8 by the second pump P2, the first pump P1 and the second pump P2 are stopped, and the second on-off valve V2 is closed. The cleaning solution generation process is ended.

  When the cleaning liquid generation process is completed, the control unit 1 opens the first on-off valve V1 and controls the second switching valve SV2 so as to connect the heating pipe LH (third pipe L13) and the first junction J1. And operate the first pump P1. Then, when the first pump P1 sucks a sufficient amount of cleaning liquid from the cleaning tank 10 by the first pump P1, the controller 1 causes the first pump P1 to pump the water in the main supply passage L2 and the remaining milk. Stop. Thereby, as shown in FIG. 12, the inside of the main supply passage L2 is filled with the cleaning liquid sucked from the cleaning tank 10 by the first pump P1 (preparation of the circulation cleaning processing described later is performed).

  Next, the control unit 1 controls the second switching valve SV2 to cause the heating pipe LH (third pipe L13) and the return passage L4 (seventh pipe L17) to communicate with each other, and operates the first pump P1. Then, as shown in FIG. 13, a circulation circuit is formed by a part of the main supply passage L2 and the return passage L4 (seventh pipe L17), and the cleaning solution flows (circulates) in the formed circulation circuit. Specifically, the cleaning liquid is a portion closer to the first pump P1 than the second joining portion J2 of the first pipe L11, the second pipe L12, the first switching valve SV1, and the third pipe L13 (heating pipe LH) , And circulate through the circulation path formed by the second switching valve SV2 and the seventh pipe L17 (return path L4). That is, the cleaning solution flows (circulates) through the circulation path while being heated. As a result, the milk component adhering to the portion of the main supply passage L2 from the second junction J2 to the second branch B2 (second switching valve SV2) is effectively dissolved (removed).

  That is, the control unit 1 (the beverage supply apparatus 100) forms the circulation path of the cleaning solution by the part of the main supply passage L2 and the return passage L4, and the cleaning solution in the cleaning tank 10 is sucked by the first pump P1. Then, by circulating the suctioned washing solution through the circulation path, a “circulation washing process” is carried out to wash the part of the main supply passage L2 while heating the washing solution.

  Then, when a predetermined time has elapsed from the start of the circulation cleaning process, the control unit 1 stops the first pump P1 and ends the circulation cleaning process. The predetermined time may be set arbitrarily, but is preferably set variably according to the amount of the fixed amount of the milk component. For example, the predetermined time is normally set to T1 (for example, 50 seconds), and may be T2 (for example, 100 seconds) larger than T1 if there is a possibility that the sticking of the milk component may increase due to a power failure or the like. It can be set. Although not particularly limited, the predetermined time T2 when there is a possibility that the sticking of the milk component is increased is set to about twice the predetermined time T1 at the normal time, but the washing time and washing effect It is confirmed that it is preferable from the balance with

  When the circulation cleaning process is completed, the control unit 1 controls the first switching valve SV1 so that the first pump P1 and the bypass passage L3 (sixth pipe L16) communicate with each other, and the first merging portion J1 and the discharge passage The third switching valve SV3 is controlled to communicate with L5 (the eighth pipe L18), and the first pump P1 is operated. Then, as shown in FIG. 14, the cleaning liquid in the cleaning tank 10 is sucked by the first pump P1, and the suctioned suction liquid is drawn into the first pipe L11, the second pipe L12, the first switching valve SV1, the sixth. The pipe L16 (bypass passage L3) is introduced to the eighth pipe L18 (discharge path L5) via the third switching valve SV3 and the downstream side of the first joining portion J1 of the fourth pipe L14 and the eighth pipe L18 It is discharged through the discharge passage L5).

  As a result, the second merging portion J2 of the main supply passage L2 is a first branch portion B1 (first switching valve SV1), which is the cleaning liquid circulated in the circulation path (that is, the cleaning liquid after circulation containing the dissolved milk component). The first cleaning fluid is discharged, and the first cleaning fluid L11, the second piping L12, the first switching valve SV1 and the sixth piping L16 (bypass passage L3) are generated by the cleaning fluid sucked from the cleaning tank 10. The downstream side of the first junction J1 of the pipe L14 and the third switching valve SV3 are cleaned.

  That is, the control unit 1 (beverage supply device 100) discharges the cleaning liquid circulated in the circulation path after passing through the bypass passage L3 (via the discharge passage L5), and the milk, and the milk "First cleaning process" in which most of the passage through which milk passes in the non-warmed milk supply process (the non-heated milk foam supply process) in the supply path L1 is cleaned by the cleaning solution sucked from the cleaning tank 10; Run.

  Then, the control unit 1 is downstream of the first joint portion J1 of the first pipe L11, the second pipe L12, the first switching valve SV1, the sixth pipe L16 (bypass passage L3), and the fourth pipe L14, and the third side. When a sufficient amount of cleaning liquid for cleaning the switching valve SV3 is drawn from the cleaning tank 10 by the first pump P1, the first pump P1 is stopped. Thus, the first cleaning liquid discharging process and the first cleaning process are completed.

  Next, the control unit 1 controls the first switching valve SV1 so that the first pump P1 and the heating pipe LH (third pipe L13) communicate with each other, and the heating pipe LH (third pipe L13) and the first pipe The second switching valve SV2 is controlled to communicate with the merging portion J1, the third switching valve SV3 is controlled to communicate the first merging portion J1 and the milk discharging portion 5, and the first pump P1 is operated. . Then, as shown in FIG. 15, the cleaning liquid in the cleaning tank 10 is suctioned by the first pump P1, and the suctioned suction liquid is discharged from the main supply passage L2 (first pipe L11, second pipe L12, first switching) It passes through the valve SV1, the heating pipe LH (third pipe L13), the second switching valve SV2, the fourth pipe L14, the third switching valve SV3 and the fifth pipe L15, and is led to the milk discharging unit 5 to discharge the milk It is discharged from the part 5 (discharged).

  Thus, the first branch portion B1 (first switching valve SV1) of the main supply passage L2 is the first cleaning portion J1 which is the cleaning liquid circulated in the circulation path (that is, the cleaning liquid after circulation containing the dissolved milk component). While the cleaning fluid is discharged, the main supply passage L2 and the milk discharger 5 are cleaned by the cleaning fluid sucked from the cleaning tank 10.

  That is, the control unit 1 (beverage supply device 100) discharges the cleaning liquid circulated through the circulation path after passing through the heating pipe LH (via the milk discharger 5) and performs “second cleaning liquid discharge processing” A second cleaning process of cleaning the passage through which milk passes in the heated milk supply process (the heated milk foam supply process) among the milk discharge unit 5 and the milk supply passage L1 with a cleaning solution sucked from the cleaning tank 10 And the

  Then, the control unit 1 stops the first pump P1 when a sufficient amount of cleaning liquid for cleaning the main supply passage L2 and the milk discharge unit 5 is sucked from the cleaning tank 10 by the first pump P1. Thereby, the second cleaning liquid discharging process and the second cleaning process are completed.

  When the second cleaning liquid discharging process and the second cleaning process are completed, the control unit 1 closes the first on-off valve V1 and opens the second on-off valve V2, and the first pump P1 and the bypass passage L3 (sixth pipe L16) And the third switching valve SV3 to communicate the first merging portion J1 and the discharge passage L5 (the eighth pipe L18), and the first pump P1. And operate the second pump P2. Then, as shown in FIG. 16, the water in the water tank 8 is suctioned by the second pump P2, and the suctioned water is fed to the main supply passage L2 (the first connection portion Z1 of the main supply passage L2) via the water supply passage L6. Supplied to The water supplied to the main supply passage L2 is a portion downstream of the first connection portion Z1 of the first piping L11, the second piping L12, the first switching valve SV1, the sixth piping L16 (bypass passage L3), the sixth It is led to the eighth piping L18 (discharge passage L5) via the portion downstream of the first junction portion J1 of the fourth piping L14 and the third switching valve SV3, and via the eighth piping L18 (discharge passage L5) Exhausted.

  Thereby, in the non-heated milk supply process (the non-heated milk foam supply process) of the milk supply passage L1, most of the passage through which the milk passes is rinsed by the water passing therethrough. That is, the control unit 1 (beverage supply device 100) cleans most of the passage through which milk passes in the non-heated milk supply process (the non-heated milk foam supply process) in the milk supply passage L1 with the cleaning liquid. Perform a “first post-rinsing process” which is followed by rinsing with water.

  And the control part 1 is a water tank by the 2nd pump P2 of the water of the quantity which can fully rinse and wash most part of the passage where milk passes by the above-mentioned non-warming milk supply processing (the above-mentioned non-warming milk foam supply processing). When suctioned from 8, the first pump P1 and the second pump P2 are stopped. Thus, the first post rinse process is completed.

  Next, the control unit 1 controls the first switching valve SV1 so that the first pump P1 and the heating pipe LH (third pipe L13) communicate with each other, and causes the first merging portion J1 and the milk discharge portion 5 to communicate with each other. Thus, the third switching valve SV3 is controlled, and the first pump P1 and the second pump P2 are operated. Then, as shown in FIG. 17, the water in the water tank 8 is suctioned by the second pump P2, and the suctioned water is supplied to the main supply passage L2 (the first connection portion Z1 of the main supply passage L2) via the water supply passage L6. Supplied to The water supplied to the main supply passage L2 is guided to the milk discharge unit 5 via the portion on the downstream side of the first connection portion Z1 in the main supply passage L2, and is discharged from the milk discharge unit 5 (discharged ).

  Thereby, in the heated milk supply process (the heated milk foam supply process) in the milk supply passage L1, most of the passage through which the milk passes is rinsed and cleaned by the water passing therethrough. That is, the control unit 1 (beverage supply device 100) is configured to clean most of the passage through which milk passes in the heated milk supply process (the heated milk foam supply process) in the milk supply passage L1. A "second post-rinsing process" is performed, which is followed by rinsing with water.

  Then, the control unit 1 controls the amount by which the second pump P2 can sufficiently rinse and clean most of the passage through which the milk passes in the heated milk supply process (the heated milk foam supply process) from the water tank 8 When suctioned, the first pump P1 and the second pump P2 are stopped. Thus, the second post rinse process is completed.

  Next, the control unit 1 controls the second switching valve SV2 so that the heating pipe LH (third pipe L13) and the return passage L4 (seventh pipe L17) communicate with each other, and the first pump P1 and the second pump Activate P2. Then, as shown in FIG. 18, the water in the water tank 8 is suctioned by the second pump P2, and the suctioned water is supplied to the main supply passage L2 (the first connection portion Z1 of the main supply passage L2) via the water supply passage L6. Supplied to The water supplied to the main supply passage L2 is a portion downstream of the first connection portion Z1 of the first pipe L11, a second pipe L12, a first switching valve SV1, a heating pipe LH (third pipe L13), The second switching valve SV2, the return passage L4 (seventh pipe L17), and the portion of the first pipe L11 between the second joining portion J2 and the cleaning tank 10 are discharged to the cleaning tank 10.

  Thus, the cleaning liquid in the return passage L4 (the seventh pipe L17), which is the cleaning liquid circulated in the circulation path (that is, the cleaning liquid after circulation containing the dissolved milk component) is discharged to the cleaning tank 10 and The water sucked from the tank 8 rinses the return passage L4 (seventh pipe L17).

  That is, the control unit 1 (beverage supply apparatus 100) rinses the cleaning solution circulated through the circulation path to the cleaning tank 10 with the “third cleaning solution discharging process”, and rinses the return passage L4 (seventh pipe L17) with water. Execute the "third post rinse process" to wash.

  Then, when the amount of water sufficient to rinse and wash the return passage L4 (seventh pipe L17) is sucked from the water tank 8 by the second pump P2, the control unit 1 performs the first pump P1 and the second pump P2. Stop. Thus, the third post rinse process is completed.

  Next, the control unit 1 opens the first on-off valve V1 and operates the second pump P2. Then, as shown in FIG. 19, the water in the water tank 8 is sucked by the second pump P2, and the sucked water passes through the water supply passage L6 (the first connection portion Z1 of the main supply passage L2). Supplied to The water supplied to the main supply passage L2 is discharged to the washing tank 10 via a portion on the upstream side of the first connection portion Z1 of the main supply passage L2.

  Thus, the cleaning liquid remaining between the second junction J2 of the main supply passage L2 and the first connection portion Z1 is discharged to the cleaning tank 10, and the water drawn from the water tank 8 causes the main supply passage L2 to flow. The site | part more upstream than 1st connection part Z1 of is rinse-cleaned.

  That is, the control unit 1 (beverage supply device 100) discharges the remaining cleaning solution to the cleaning tank 10, and the portion on the upstream side of the first connection portion Z1 of the main supply passage L2 is Perform "fourth post-rinsing treatment" to rinse with water.

  Then, the control unit 1 causes the second pump P2 to suction the water from the water tank 8 by an amount sufficient to sufficiently rinse and wash the portion on the upstream side of the first connection portion Z1 of the main supply passage L2. Stop P2. Thus, the fourth cleaning liquid discharging process and the fourth post-rinsing process are completed.

  Thereafter, the operator replaces the washing tank 10 with the milk tank 3 and performs predetermined initialization, whereby the beverage supply apparatus 100 becomes ready to supply milk or milk foam to the cup C.

  As described above, when the milk tank 3 is replaced with the cleaning tank 10 by the operator, the beverage supply apparatus 100 (the control unit 1) according to the present embodiment is switched to the milk discharge unit 5 by the main supply passage L2. When the storage tank to be connected is the cleaning tank 10 to which the cleaning agent D is charged, the cleaning solution generation process and the circulating cleaning process are performed in accordance with the cleaning command. In the cleaning solution generation process, the water in the water tank 8 is supplied to the main supply passage L2 by the water supply device 7, and the supplied water is led to the cleaning tank 10 through the heating pipe LH and the return passage L4. A cleaning solution (alkaline cleaning solution) is generated by diluting or dissolving the cleaning agent D in the storage tank 10 (see FIG. 13). Further, in the circulation cleaning process, the cleaning solution generated in the cleaning solution generation process is suctioned from the washing tank 10, and the suctioned washing solution is circulated in the circulation path formed by a part of the main supply passage L2 and the return passage L4. The main supply passage L2 is mainly cleaned partially.

  Here, water heated by passing through the heating pipe LH in the cleaning liquid generation process is supplied to the cleaning tank 10, and the main supply passage is heated while the cleaning liquid is heated in the circulation cleaning process. Circulate through the circulation path including a portion of For this reason, even when the milk component is fixed or the like to a part of the main supply passage L2, it is dissolved and effectively removed, and the occurrence of a defect due to the milk component fixing can be prevented.

  In the above embodiment, an alkaline cleaning liquid is used for pipe cleaning (passage cleaning). This is mainly considered to dissolve and remove milk components (such as fat and protein). However, the present invention is not limited to this, and an acidic cleaning solution may be used. In this case, the washing tank 10 is charged with an acidic detergent (stock solution or tablet). The acidic cleaning solution is particularly effective when there is a possibility that calcium or magnesium in the pipe (passage) may stick.

  Further, the present invention is not limited to the above-described embodiment, and it is needless to say that further modifications and changes are possible based on the technical concept of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Apparatus main body, 3 ... Milk tank (drink tank), 5 ... Milk discharge part (drink discharge part), 6 ... Heating apparatus, 7 ... Water supply apparatus, 8 ... Water tank, 9 ... Air Supply device, 10: tank for washing, 100: beverage supply device, B1: first branch portion, B2: second branch portion, B3: third branch portion, D: cleaning agent, J1: first junction portion, J2: Second junction, L1 ... milk supply passage, L2 ... main supply passage, L3 ... bypass passage, L4 ... return passage, L5 ... discharge passage, LH ... heating pipe (heated passage portion), P1 ... first pump (Pump), P2: Second pump, P3: Third pump, SV1: First switching valve (first valve device), SV2: Second switching valve (second valve device), SV3: Third switching valve (second 3-valve device), V1 ... first on-off valve (passage on-off valve)

Claims (7)

It is a main supply passage which connects a storage tank and a beverage discharge part, and has a heated passage part heated by a heating device in the middle, and it is closer to the storage tank than the heated passage part. The main supply passage in which a pump is disposed and a passage opening / closing valve is disposed closer to the storage tank than the pump;
A first junction from the first branch between the pump and the heated passage in the main supply passage and a first junction between the heated passage and the beverage discharge in the main supply passage A bypass passage that joins the
A second junction between the storage tank in the main supply passage and the passage on-off valve branched from a second branch between the heated passage portion and the first junction in the main supply passage A return passage that joins the
A first valve device configured to cause the pump to communicate with the heated passage or the bypass passage;
A second valve device configured to cause the heated passage portion to communicate with the first junction portion or the return passage;
A water supply device for supplying water to a portion of the main supply passage between the passage on-off valve and the pump;
A controller that controls the pump, the passage open / close valve, the first valve device, the second valve device, and the water supply device;
Including
The control unit
When the storage tank is a beverage tank storing a beverage, the beverage is aspirated from the beverage tank according to a beverage supply command, and the aspirated beverage is allowed to pass through the to-be-heated passage portion or the bypass passage to carry out the beverage Performing a beverage supply process which is led to a discharge unit and discharged from the beverage discharge unit to be supplied to the supply target;
When the storage tank is a cleaning tank into which a cleaning agent is added, the water supply device supplies water to the main supply passage according to a cleaning command, and the supplied water is supplied to the heated passage portion and the heated passage portion. A cleaning solution generation process for generating a cleaning solution by passing through a return passage and leading to the cleaning tank and diluting or dissolving the cleaning agent in the cleaning tank, and aspirating the generated cleaning solution from the cleaning tank And performing a circulating cleaning process for cleaning the main supply passage by circulating a suctioned cleaning solution through a circulation passage formed by a part of the main supply passage and the return passage.
Beverage supply device.   The control unit is a first discharge and cleaning process for discharging the cleaning solution after circulation after passing through the bypass passage after the circulation cleaning process and for cleaning the bypass passage with the cleaning solution sucked from the cleaning tank. And performing a second discharging and cleaning process of cleaning the main supply passage with the cleaning solution sucked from the cleaning tank while discharging the cleaning solution after circulation after passing through the heated passage portion. The beverage supply device according to claim 1.   The control unit supplies water to the main supply passage by the water supply device after the first discharge and cleaning process and the second discharge and cleaning process, and passes the supplied water through the bypass passage. The first post-rinsing process for draining and the second post-rinsing process for supplying water to the main supply passage by the water supply device and discharging the supplied water after passing through the heated passage portion are performed. The beverage supply device according to claim 2.   The first pre-rinsing process in which the control unit supplies water to the main supply passage by the water supply device before the circulating cleaning process, and discharges the supplied water after passing through the bypass passage; The second pre-rinsing process of supplying water to the main supply passage by a water supply device and discharging the supplied water after passing through the heated passage portion is performed. Beverage supply device. A discharge passage branched from a third branch between the first junction and the beverage discharger in the main supply passage;
A third valve device configured to communicate between the first merging portion and the beverage discharge portion or the discharge passage, and controlled by the control portion;
Further include
The control unit discharges, via the discharge passage, the cleaning solution or water after passing through the bypass passage in the first discharge and cleaning treatment, the first post rinse treatment, or the first pre-rinse treatment. [2] In the discharging / washing process, the second post-rinsing process, or the second pre-rinsing process, the cleaning solution or water after passing through the heated passage is discharged through the beverage discharger.
The beverage supply device according to any one of claims 2 to 4.   The beverage supply device according to any one of claims 1 to 5, wherein the beverage is milk and the cleaning solution is an alkaline cleaning solution.   The beverage supply device according to any one of claims 1 to 5, wherein the beverage is milk and the cleaning solution is an acidic cleaning solution.