JP2018075176A - Beverage manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage manufacturing device which has a simple structure and in which both of a liquid passing washing and decomposition washing can be performed.SOLUTION: A beverage manufacturing device comprises: a milk foamer having a gear pump for mixing a milk which is supplied from a milk container (milk pack 9) through a milk supply pipeline 231 and air for generating a foamed milk; an air pump 241 for supplying air to the gear pump; a washing pump 251 for supplying washing water to the gear pump; and a branch member (T-shaped branch connection) 253 in which an air supply pipeline 242 through which the air pump 241 supplies air, a washing water supply pipeline 252 through which the washing pump 251 supplies washing water, and a common pipeline 254 for supplying any of air and washing water to the gear pump, are connected.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to a beverage manufacturing apparatus capable of cleaning a flow path.

  2. Description of the Related Art Conventionally, a beverage production apparatus that has a coffee extractor or a milk former and can produce and / or supply a coffee beverage or the like is widely used. In such a beverage production apparatus, the beverage raw material is produced through the flow path inside the beverage production apparatus, and is led out to the beverage container. From the viewpoint of hygiene, it is necessary to periodically clean the flow path inside the beverage production apparatus through which the beverage ingredients and beverages pass.

  The flow path inside the beverage production apparatus can be cleaned by, for example, disassembly and cleaning of the beverage production apparatus. However, in order to disassemble and clean the beverage production apparatus, it is necessary to disassemble and clean the beverage production apparatus and then assemble it, which requires a great deal of time, labor and cost.

  For this reason, there exists a technique (hereinafter referred to as “liquid washing”) for washing the beverage path by flowing, for example, a detergent solution through a flow path without being decomposed. For example, Patent Document 1 discloses a cleaning conduit formed to supply a cleaning liquid and / or steam to a first throttle and a continuous flow heater for setting a flow path for hot foam, and a first for cold foam. And an apparatus in which the cleaning conduit joins a flow path for liquid food (such as milk) upstream of the first throttle and the continuous flow heater.

Japanese Unexamined Patent Publication No. 2016-43266

  For example, when a biofilm has been formed in the flow path, the biofilm cannot be sufficiently removed by liquid cleaning, and it is necessary to perform disassembly cleaning and parts replacement. However, as in the device disclosed in Patent Document 1, liquid cleaning is a premise, and in a device that is not assumed to be decomposed, it is difficult to clean the part where the biofilm is formed and replace parts. For this reason, the drink manufacturing apparatus which can perform both decomposition | disassembly washing | cleaning and liquid washing | cleaning is desirable.

  An object of this indication is to provide the drink manufacturing apparatus which has a simple structure and is easy to perform both liquid washing | cleaning washing | cleaning and decomposition | disassembly washing | cleaning.

  A beverage production apparatus of the present disclosure includes a milk former having a gear pump that mixes milk and air supplied from a milk container via a milk supply pipe to generate foamed milk, and an air pump that supplies air to the gear pump. A cleaning pump that supplies cleaning water to the gear pump; an air supply pipe through which air supplied by the air pump flows; a cleaning water supply pipe through which the cleaning water supplied by the cleaning pump flows; and the gear pump A branch member connected to a common pipe through which either the air or the cleaning water flows.

  According to the present disclosure, it has a simple structure and it is easy to perform both liquid cleaning and decomposition cleaning.

The perspective view of the beverage manufacturing apparatus which concerns on embodiment of this indication Diagram showing the configuration of the coffee extraction unit The figure which shows the structure of a steam supply part, a milk supply part, and an air supply part The figure which shows an example of a structure of a T-shaped branch part Enlarged perspective view of the nozzle unit Exploded view of nozzle unit The figure when the longitudinal section of the milk former taken along line V-V 'in FIG. 5 is viewed from the front. Exploded view of gear pump and surrounding components Diagram showing the dimensions of the large and small diameter gears and the internal space of the case This is a left side view of the milk former, with the inside partially partially seen through FIG. 4 is a partial cross-sectional view of a branching portion, a valve, and a motor side gear as viewed from the left side, and shows switching between a first outlet and a second outlet Bottom view of nozzle unit and valve motor The figure which illustrated the control part which controls each part of a beverage manufacturing device Diagram for explaining the flow of cleaning water (hot water) during the cleaning operation

  Hereinafter, each embodiment of the present disclosure will be described in detail with reference to the drawings. However, a more detailed description than necessary, for example, a detailed description of already well-known matters or a duplicate description of substantially the same configuration may be omitted.

  The following description and the drawings referred to are provided for those skilled in the art to understand the present disclosure, and are not intended to limit the scope of the claims of the present disclosure.

<Definition of direction>
First, directions in the following embodiments will be defined. The direction along the axis from left to right or right to left when the front surface of the beverage production apparatus 1 faces the user is defined as the left-right direction. In addition, a direction from the front to the back of the beverage production apparatus 1 or from the back to the front when the front of the beverage production apparatus 1 faces the user is defined as the front-rear direction. In addition, a direction from the bottom surface to the top surface or the top surface to the bottom surface of the beverage production device 1 when the front surface of the beverage production device 1 and the user face each other is defined as a vertical direction. Hereinafter, the axes along the left-right direction, the front-rear direction, and the up-down direction may be referred to as an x-axis, a y-axis, and a z-axis, respectively.

<1. First Embodiment>
<1-1. Schematic configuration of beverage production apparatus 1>
FIG. 1 is a perspective view of the beverage manufacturing apparatus 1. The beverage manufacturing apparatus 1 is for business use, for example, and is installed in a store or the like. The beverage production apparatus 1 includes a main body 2, a door 3, a button group 4 (see a portion surrounded by a dotted line), a canister 5, a milk cool box 6, a nozzle unit 7, and a drip tray 8. I have.

  The door 3 is attached to the front surface of the main body 2 so as to be freely opened and closed. The button group 4 is disposed on the front surface of the door 3. The plurality of buttons included in the button group 4 include beverage types (espresso coffee, drip coffee (hot ice), latte (hot ice), cappuccino (hot ice), etc.) that the beverage production apparatus 1 can provide. Are assigned to each. When a button to which a desired beverage is assigned is operated by the user, the beverage manufacturing apparatus 1 manufactures and provides the beverage assigned to the operated button. In addition, the drink manufacturing apparatus 1 in this Embodiment shall manufacture the drink using coffee.

  The canister 5 is attached to the upper surface of the main body 2 and stores coffee beans. The milk cooler 6 stores at least one milk pack 9 (see FIG. 3 described later) and stores it at a low temperature.

  The nozzle unit 7 is provided on the front surface of the main body 2 and discharges the beverage produced inside the main body 2 downward. The nozzle unit 7 generates foamed milk (hot and cold), steam milk (hot), cold milk and the like using the milk supplied from the milk pack 9 and discharges the milk downward. These milk and beverages produced inside the main body 2 are separately discharged from the nozzle unit 7 and mixed in the container 10 to produce various beverages.

The drip tray 8 projects forward from the lower end of the main body 2. The beverage discharged from the nozzle unit 7 is provided to the beverage container 10 placed on the drip tray 8. Also,
The drip tray 8 collects and stores beverages dripping from the nozzle unit 7 or spilling from the container 10.

  As shown in FIG. 2, which will be described later, inside the main body 2, a coffee extraction unit 21 that generates coffee using coffee beans stored in the canister 5 is provided. Further, as shown in FIG. 3 described later, a steam supply unit 22, an air supply unit 24, and a cleaning water supply unit 25 are further provided inside the main body 2. A milk supply unit 23 is provided outside the main body 2. The applicant of the present application discloses a coffee extraction unit, a steam supply unit, a milk supply unit, and an air supply unit in JP2013-165814A. Therefore, in this embodiment, the part corresponding to the disclosed content of JP2013-165814A will be briefly described.

  FIG. 2 is a diagram illustrating the configuration of the coffee extraction unit 21. As shown in FIG. 2, the coffee extraction unit 21 includes a hot water tank 211, a hot water pump 212, a filter 213, a hot water supply valve 214, a coffee side hot water supply pipe 215, an elevating device 216, a cylinder unit 217, a cap 218, a coffee liquid pipe 2212, and a mill 2213.

  The hot water tank 211 is a tank open to the atmosphere, and stores a predetermined amount of drinking water in a state heated to a predetermined temperature by a built-in heater (not shown).

  The hot water pump 212 is a pump that pressurizes and discharges hot water in the hot water tank 211. The upstream end of the coffee side hot water supply pipe 215 is connected to the discharge port of the hot water pump 212. The coffee side hot water supply pipe 215 is provided with a filter 213 and a hot water supply valve 214 made of an electromagnetic valve or the like in this order from the upstream side. The downstream end of the coffee-side hot water supply pipe 215 is detachably connected to a hot water supply port of a cylinder 219 described later.

  The cylinder unit 217 is configured to be movable in the vertical direction, and includes a cylinder 219 and a piston 2210. The upper surface of the cylinder 219 is open, and a hot water inlet is formed on the side surface near the lower end of the cylinder 219. The piston 2210 has water permeability and can move in the internal space of the cylinder 219.

  The cap 218 is provided above the cylinder unit 217 and is fitted into the rising cylinder 219 to close the opening. A space surrounded by the lower surface of the cap 218 blocking the cylinder 219, the inner peripheral surface of the cylinder 219, and the upper surface of the piston 2210 forms a coffee liquid extraction chamber.

  The cap 218 is formed with an extraction hole 2211 that penetrates from the lower surface to the upper surface of the cap 218. The coffee liquid obtained in the extraction chamber passes through the extraction hole 2211. The upper end of the extraction hole 2211 is connected so as to be in fluid communication with the coffee nozzle 72 via the coffee liquid pipe 2212.

  A mill 2213 is provided above the inside of the main body 2. The mill 2213 pulverizes the coffee beans stored in the canister 5 to generate ground beans.

  Next, the operation of the coffee extraction unit 21 will be described. When a specific button in the button group 4 (see FIG. 1) is operated, the mill 2213 generates ground beans. The produced ground beans are put into the above-described extraction chamber.

  Next, the cylinder unit 217 is raised by the lifting device 216, and the cap 218 is pushed into the opening of the cylinder 219. Thereby, the ground beans in the extraction chamber are compressed between the piston 2210 and the cap 218.

  Next, the hot water pump 212 is operated, the hot water supply valve 214 is opened, and a predetermined amount of hot water is pressurized and supplied from the hot water tank 211 into the cylinder 219. As a result, a high concentration coffee liquid is obtained. Here, a flow meter (not shown) is provided between the filter 213 and the hot water supply valve 214, and this flow meter measures the amount of hot water supplied to the cylinder 219. The obtained coffee liquid is sent out from the cap 218 and discharged from the coffee nozzle 72 via the coffee liquid pipe 2212. Then, it is poured into the container 10 placed on the drip tray 8 (see FIG. 1).

  Next, the structure of the steam supply unit 22, the milk supply unit 23, the air supply unit 24, and the cleaning water supply unit 25 provided inside and outside the main body 2 will be described. FIG. 3 is a diagram illustrating a configuration of the steam supply unit 22, the milk supply unit 23, the air supply unit 24, and the cleaning water supply unit 25.

  As shown in FIG. 3, the steam supply unit 22 includes an electromagnetic pump 221, a milk-side hot water supply pipe 222, a boiler 223, a steam pipe 224, and a three-way valve 225. The hot water tank 211 may be shared with the coffee extraction unit 21.

  Hot water in the hot water tank 211 is supplied to the boiler 223 via the milk-side hot water supply pipe 222 by the operation of the electromagnetic pump 221. The boiler 223 is controlled so as to always have a constant temperature by a built-in electric heater (not shown), and generates steam using hot water supplied by the operation of the electromagnetic pump 221. The generated steam is supplied to the hot milk nozzle 710 via the steam pipe 224 and the three-way valve 225.

  Moreover, as shown in FIG. 3, the milk supply part 23 has the milk supply piping 231 in addition to the above-mentioned milk cold storage box 6. As shown in FIG.

  The upstream end of the milk supply pipe 231 is inserted into the milk pack 9 stored in the milk cool box 6. Further, the downstream end of the milk supply pipe 231 is connected so as to be in fluid communication with a milk inlet 746 of a gear pump 74 (see FIG. 5 or the like) described later.

  As shown in FIG. 3, the air supply unit 24 includes an air pump 241, an air supply pipe 242, and an air valve 243.

  The air pump 241 is driven by a motor (not shown), sucks external air, and sends it out to the air supply pipe 242. The downstream end of the air supply pipe 242 is connected so as to be in fluid communication with a T-shaped branch portion 253 of a cleaning water supply unit 25 described later. Further, an air valve 243 composed of an electromagnetic valve or the like is provided in the middle of the air supply pipe 242. When the air valve 243 is opened, the air sent from the air pump 241 is supplied to the T-shaped branch portion 253 via the air supply pipe 242.

  The cleaning water supply unit 25 includes a cleaning pump 251, a cleaning water supply pipe 252, a T-shaped branch part 253, and a common pipe 254. The cleaning pump 251 is connected to the hot water tank 211 and supplies hot water to be used for cleaning the milk former 73 described later from the hot water tank 211 to the cleaning water supply pipe 252. The downstream end of the cleaning water supply pipe 252 is connected to the T-shaped branch portion 253 so as to be in fluid communication.

  The T-shaped branch portion 253 is connected to the downstream end of the air supply pipe 242, the downstream end of the cleaning water supply pipe 252, and the upstream end of the common pipe 254 described later. In other words, the T-shaped branching portion 253 is connected in fluid communication with the air pump 241, the cleaning pump 251, and a common inlet 747 of the gear pump 74 described later. The T-shaped branch portion 253 supplies air from the air supply pipe 242 and cleaning water from the cleaning water supply pipe 252 to the gear pump 74 via the common pipe 254. The T-shaped branch portion 253 is an example of a branch member.

  As described above, when a beverage is produced in the beverage production apparatus 1, the air pump 241 operates to supply air from the air supply pipe 242 to the gear pump 74 through the T-shaped branching portion 253 and the common pipe 254. When cleaning the former 73, the cleaning pump 251 is operated to supply cleaning water from the cleaning water supply pipe 252 to the gear pump 74 through the T-shaped branch portion 253 and the common pipe 254. The operation of the beverage production apparatus 1 when the milk former 73 is washed in the beverage production apparatus 1 will be described in detail later.

  FIG. 4 is a diagram illustrating an example of the configuration of the T-shaped branching unit 253. As shown in FIG. 4, the T-shaped branch path has a T-shaped tube 2531 and three tubes 2532, 2533, and 2534.

  The T-shaped tube 2531 is a T-shaped tubular member, and is formed of, for example, resin or metal. The T-shaped tube 2531 is an example of the three-way tube of the present invention.

  The tubes 2532 to 2534 are attached to three sides of the T-shaped tube 2531. The tubes 2532 to 2534 are desirably formed of a relatively soft material such as rubber or resin. The tube 2532 has one end connected to the air supply pipe 242 and the other end connected to one of the T-shaped tubes 2531. One end of the tube 2533 is connected to the cleaning water supply pipe 252 and the other end is connected to one of the T-shaped tubes 2531. One end of the tube 2534 is connected to the common pipe 254 and the other end is connected to one of the T-shaped pipes 2531. The tube 2532 is an example of a first tube, the tube 2533 is an example of a second tube, and the tube 2534 is an example of a third tube. The tube 2534 is formed to have a certain length (for example, about several tens of mm to one hundred and several tens of mm). The lengths of the tubes 2532 and 2533 may be appropriately adjusted based on, for example, the size of the beverage production apparatus 1.

  The T-shaped branch portion 253 is thus connected to the three sides, that is, each of the cleaning water supply pipe 252, the air supply pipe 242, and the common pipe 254 by the tubes 2532 to 2534. For this reason, for example, the tube 2534 can be easily removed by pulling the tube 2534 out of the T-shaped tube 2531. Thereby, for example, when the beverage production apparatus 1 is disassembled and washed, it is possible to reduce the labor and time required to remove and attach the gear pump 74 in particular.

<1-2. Nozzle unit and related configuration>
Next, the detailed configuration of the nozzle unit 7 will be described with reference to FIGS. 1 and 5 to 12. As shown in FIGS. 1 and 5, the nozzle unit 7 is provided on the front surface of the main body 2 and includes a cover 71, a coffee nozzle 72, and a milk former 73. Note that the cover 71 is not shown in FIG. As shown in FIGS. 5 to 12, the milk former 73 includes a gear pump 74, a branch portion 75, a valve 76, a cold milk nozzle 77, a tempering device 78, and a milk flow path 79 in the milk former. And a hot milk nozzle 710. The cold milk nozzle 77 and the hot milk nozzle 710 are examples of milk nozzles.

  The gear pump 74 is a transfer pump that transfers milk, and includes a case 741, a large-diameter gear 742, a small-diameter gear 743, and a lid 744, as shown in FIGS. 7 and 8.

  The large-diameter gear 742 and the small-diameter gear 743 are accommodated in the case 741 in a state where they mesh with each other. The large-diameter gear 742 incorporates a pump-side magnet 745. Details of the pump-side magnet 745 will be described later.

  FIG. 9 is a diagram showing the dimensions of the large-diameter gear 742 and the small-diameter gear 743 and the dimensions of the internal space of the case. In the present embodiment, as shown in FIG. 9, the tip diameters of the large-diameter gear 742 and the small-diameter gear 743 are OD1 and OD2, and the root circle diameters of both the gears 742 and 743 are RD1 and RD2. Further, the tooth widths (y-axis direction widths) of both the gears 742 and 743 are substantially the same, and are W (not shown).

  The case 741 is made of a nonmagnetic material such as a resin. The case 741 forms an internal space IS1 that accommodates both the gears 742 and 743. As shown in FIG. 9, the internal space IS1 is defined by a large-diameter side arc surface S1, a small-diameter side arc surface S2, a bottom surface S3, an upper surface S4, and a front surface S5.

  The arcuate surfaces S1 and S2 are arcuate surfaces including sides forming an arc having radii of approximately OD1 / 2 and OD2 / 2 when viewed from the front in the y-axis direction.

  The bottom surface S3 is a surface including two lower tangent lines (two line segments perpendicular to the paper surface in FIG. 9) in contact with the tooth tip circles of the circular arc surfaces S1 and S2 when viewed from the front. On the other hand, the upper surface S4 is a surface including two upper tangent lines (two line segments perpendicular to the paper surface in FIG. 9). The front surface S5 is a surface that closes the space IS1 surrounded by the surfaces S1 to S4 on the front surface side (front side in FIG. 9) of the main body 2.

  Note that the internal space IS1 may have a difference of about tolerance with respect to the above dimensions. Further, the gear pump 74 may be designed to have a slight margin with respect to the above dimensions at the design stage.

  Further, as shown in FIGS. 7, 8 and 9, the case 741 has a milk inlet 746, a common inlet 747, and a milk outlet 748. The milk inlet 746 is a cylindrical or tubular member capable of fluid communication with the internal space IS2 of the gear pump 74 through a through-hole formed in the upper surface S4 of the case 741. The internal space IS2 is a space (shaded portion in FIG. 9) surrounded by the upper surface S4, the large diameter gear 742, and the small diameter gear 743 in the internal space IS1 of the gear pump 74. The downstream end of the milk supply pipe 231 is connected to the milk inlet 746 so that fluid communication is possible.

  The common inlet 747 is a cylindrical or tubular member that can be in fluid communication with the internal space IS2 of the gear pump 74 through a through hole formed in the case 741. The common inlet 747 is connected to the downstream end of the above-described common pipe 254 so as to allow fluid communication.

  In the present embodiment, the common inlet 747 is configured to be in fluid communication with the internal space IS2 of the gear pump 74, like the milk inlet 746. The milk inlet 746 and the common inlet 747 are preferably formed at the center of the upper surface S4 or in the vicinity thereof.

  The milk outlet 748 is a through hole formed in the bottom surface S <b> 3 of the case 741. The milk outlet 748 can be in fluid communication with the branch 75. The milk outlet 748 is preferably formed at the center of the bottom surface S3 or in the vicinity thereof.

  The case 741 is attached to the front surface of the main body 2 so that the bottom surface S3 of the internal space IS1 is parallel to the xy plane, as shown in FIG. The lid 744 closes the opening of the case 741 in which both gears 742 and 743 are accommodated.

  In order to rotate the large-diameter gear 742, the main body 2 incorporates a gear pump motor 26 as shown in FIGS. The gear pump motor 26 includes a rotating shaft 261 and a motor-side magnet 262. The motor-side magnet 262 performs magnet coupling with a pump-side magnet 745 (see FIG. 7) built in the large-diameter gear 742, and transmits the drive torque generated by the gear pump motor 26 to the pump-side magnet 745. As a result, the large-diameter gear 742 incorporating the pump-side magnet 745 starts to rotate, and the small-diameter gear 743 rotates following the large-diameter gear 742.

  When the beverage is produced in the milk former 73, the large-diameter gear 742 is rotated clockwise by the gear pump motor 26 when viewed from the front of the beverage production apparatus 1 (see arrow a shown in FIG. 9). Accordingly, the small diameter gear 743 rotates counterclockwise when viewed from the same direction (see arrow b shown in FIG. 9). Hereinafter, the rotation of the gear pump 74 in this rotational direction will be described as the forward rotation of the gear pump 74. The forward rotation of the gear pump 74 is an example of rotation in the first direction.

  During forward rotation of the gear pump 74, liquid or air flowing into the case 741 from the milk inlet 746 or the common inlet 747 is rotated outside the large diameter gear 742 and the small diameter gear 743 by the rotating large diameter gear 742 and small diameter gear 743 ( The non-meshing side) is transferred to the vicinity of the milk outlet 748. Accordingly, the liquid or air that has flowed into the case 741 from the milk inlet 746 or the common inlet 747 can be discharged from the milk outlet 748. The outer side of the large diameter gear 742 and the small diameter gear 743 means the side near the inner wall of the case 741 in the outer peripheral portions of the large diameter gear 742 and the small diameter gear 743.

  On the other hand, when the gear pump 74 rotates in the reverse direction, the large-diameter gear 742 is rotated counterclockwise by the gear pump motor 26 when viewed from the front of the beverage production apparatus 1. Accordingly, the small diameter gear 743 rotates clockwise as viewed from the same direction. The reverse rotation of the gear pump 74 is an example of the rotation in the second direction.

  At the time of reverse rotation of the gear pump 74, the liquid flowing into the internal space IS2 of the gear pump 74 from the common inlet 747 flows backward from the milk inlet 746 to the milk pack 9 side by the rotation of the large diameter gear 742 and the small diameter gear 743.

  As shown in FIG. 10, the branch part 75 is a cylindrical or tubular member extending in the front-rear direction. A cylindrical internal space IS3 is formed in the branch portion 75. An inlet 751 that is in fluid communication with the milk outlet 748 is formed near the front of the branch 75. A first outlet 752 that is in fluid communication with the cold milk nozzle 77 is formed on the lower rear end side of the branch portion 75. A second outlet 753 is formed at the front end of the branch portion 75 so as to be in fluid communication with a milk flow path 79 described later. An opening 754 into which a later-described valve 76 is inserted is formed at the rear end of the branch portion 75.

  The valve 76 is inserted into the opening 754 of the internal space IS3 of the branch part 75 and has a substantially cylindrical rotating body 761. A first ring groove 762 and a second ring groove 763 are formed on the outer peripheral surface (in other words, the side surface) of the rotating body 761. The axis of the first ring groove 762 is parallel to the y axis, but the axis of the second ring groove 763 is not parallel to the y axis and is inclined with respect to the y axis in plan view from the x axis direction. Yes. As shown in FIG. 11, the first O-ring 764 and the second O-ring 765 are attached to the first ring groove 762 and the second ring groove 763 described above. 10 does not show the O-rings 764 and 765 for the sake of convenience, and FIG. 11 does not show the ring grooves 762 and 763 for the sake of convenience.

  Here, the spatial distance in the y-axis direction between the O-rings 764 and 765 (hereinafter referred to as inter-ring distance) d is a position on the peripheral surface of the valve 76 (in other words, the valve 76 as shown in FIG. Depending on the orientation from the central axis of Accordingly, when the shortest part of the distance d between the rings faces upward due to the rotation of the rotating body 761, the inlet 751 and the second outlet 753 are in fluid communication (as indicated by the dashed line arrow). 11), as shown in the lower part of FIG. 11, when the shortest portion is directed downward, the inlet 751 and the first outlet 752 are in fluid communication (see the dashed-dotted arrow).

  Further, for the rotation of the valve 76, a valve side gear 766 is attached to the rear end of the valve 76 as shown in FIG. More specifically, the valve-side gear 766 is attached in a state where its own rotation axis and the central axis of the valve 76 are aligned. Here, in order to make it easy to attach the milk former 73 to the main body 2, it is preferable that the valve side gear 766 can be inserted into and removed from the main body 2.

  As shown in FIGS. 5 and 6, a valve motor 27 is built in the main body 2 to rotate the valve 76. As shown in FIG. 12, the valve motor 27 includes a rotating shaft 271 and a motor side gear 272. As shown in FIG. 12, the motor side gear 272 is fixed to the tip of the rotating shaft 271 and meshes with the valve side gear 766.

  The cold milk nozzle 77 is integrally attached to the case 741 via the branch portion 75. As shown in FIG. 10, the cold milk nozzle 77 is a cylindrical or tubular member extending in the vertical direction. The cold milk nozzle 77 is formed with a cylindrical inner space IS4. At the upper end of the cold milk nozzle 77, an inlet for fluid communication between the first outlet 752 and the internal space IS4 is formed. Further, the lower end of the cold milk nozzle 77 opens so as to be in fluid communication with the internal space IS4, and the tempering device 78 is inserted into the internal space IS4 from this opening.

  The upstream end of the milk flow path 79 is connected to the second outlet 753 so as to be in fluid communication, and the downstream end thereof is connected to the hot milk nozzle 710 so as to be in fluid communication. As shown in FIG. 6, the hot milk nozzle 710 is connected to the downstream end of the steam pipe 224 so as to be in fluid communication.

<1-3. Milk Former Operation (when creating Steam Milk)>
Next, an operation example of the milk former 73 having the above configuration will be described. FIG. 13 is a diagram illustrating a control unit 12 that controls each unit of the beverage production apparatus 1. The control unit 12 is provided inside the main body 2 (not shown), and includes a button receiving unit 121, a hot water pump control unit 122, an air pump control unit 123, a cleaning pump control unit 124, a gear pump motor control unit 125, and a valve motor control unit. 126. The air pump control unit 123 controls driving of the air pump 241. The cleaning pump control unit 124 controls driving of the cleaning pump 251. The gear pump motor control unit 125 controls the driving of the gear pump motor 26 to operate the gear pump 74. The valve motor control unit 126 controls driving of the valve motor 27.

  The control unit 12 includes, for example, a CPU and a memory, and the CPU reads out a program from the memory and executes the program, thereby performing the control described in the present embodiment.

  The button receiving unit 121 receives an operation of the user of the beverage manufacturing apparatus 1 for the button group 4 and the like. When the button reception unit 121 determines that a specific button in the button group 4 is operated and the operated button is a beverage using steam milk, the other configuration of the control unit 12 is as follows. Take control.

  First, the valve motor control unit 126 drives the valve motor 27. Thereby, the rotating shaft 271 rotates. The force generated in the rotating shaft 271 is transmitted to the valve 76 via the motor side gear 272 and the valve side gear 766 at the tip. When producing steam milk, the valve motor control unit 126 controls the valve motor 27 to rotate and stop the valve 76 so that the shortest portion of the distance d between the rings faces upward. Thereby, in the internal space IS3 of the branching portion 75, a flow path (see an arrow of an alternate long and short dash line in FIG. 11) from the inlet 751 to the second outlet 753 is formed.

  The control unit 12 further operates the electromagnetic pump 221 to energize the three-way valve 225. Thereby, the hot water in the hot water tank 211 starts to flow into the boiler 223 via the milk side hot water supply pipe 222. The flowing hot water becomes steam by the boiler 223 and is supplied to the hot milk nozzle 710 through the steam pipe 224.

  Next, the gear pump motor control unit 125 drives the gear pump motor 26. As a result, the rotational force generated in the rotating shaft 261 is transmitted to the large-diameter gear 742 by a magnet coupling between the motor-side magnet 262 and the pump-side magnet 745. As a result, the large diameter gear 742 begins to rotate, and the small diameter gear 743 rotates following the large diameter gear 742. At this time, both gears 742 and 743 rotate in the directions of arrows a and b shown in FIG. With this rotation, the gear pump 74 starts to suck the milk in the milk pack 9 through the milk supply pipe 231. The milk sucked into the gear pump 74 is discharged from the milk outlet 748 by rotating both the gears 742 and 743 around these outer sides.

  In addition, when producing steam milk, the air pump 241 is stopped and the air valve 243 is closed. That is, the gear pump 74 is not supplied with air from the air supply unit 24.

  The milk discharged from the milk outlet 748 is supplied to the inlet 751 of the branch portion 75. The milk flowing into the internal space IS3 from the inlet 751 is discharged from the second outlet 753 through the internal space IS3, and then flows into the hot milk nozzle 710 through the milk flow path 79. As described above, steam is supplied from the steam pipe 224 to the hot milk nozzle 710. Inside the hot milk nozzle 710, the milk is heated with steam, thereby producing steam milk. The generated steam milk is discharged from the hot milk nozzle 710 toward the container 10.

<1-4. Milk Former Operation (when creating cold milk)>
Moreover, when a specific button in the button group 4 is operated and the operated button is a beverage using cold milk, the control unit 12 controls each part of the above configuration as follows.

  First, the valve motor control unit 126 controls the valve motor 27 to rotate and stop the valve 76 so that the shortest portion of the inter-ring distance d is directed downward. As a result, a flow path from the inlet 751 to the first outlet 752 is formed in the internal space IS3 of the branching portion 75 (see the dashed line arrow in the lower part of FIG. 11).

  The gear pump motor control unit 125 further drives the gear pump motor 26. As a result, the gear pump 74 starts to suck the milk in the milk pack 9 as described in the section 1-3. Cold milk in the gear pump 74 is discharged from the milk outlet 748 by the rotation of both gears 742 and 743.

  During the cold milk production, the gear pump 74 does not receive air supply from the air supply unit 24.

  Milk from the milk outlet 748 is supplied to the inlet 751 of the branch 75. The milk flowing into the internal space IS3 from the inlet 751 is discharged from the first outlet 752 through the internal space IS3 and flows into the internal space IS4 from the upper end of the cold milk nozzle 77. The milk that has flowed in is discharged toward the container 10 from the lower end of the cold milk nozzle 77 while maintaining the cold state.

<1-5. Milk foamer operation (when creating cold foamed milk)>
When a specific button in the button group 4 is operated and the operated button is a beverage using cold foamed milk, the control unit 12 controls each part of the above configuration as follows. .

  First, the valve motor control unit 126 controls the valve motor 27 to rotate and stop the valve 76 so that the shortest portion of the inter-ring distance d is directed downward. As a result, a flow path from the inlet 751 to the first outlet 752 is formed in the internal space IS3 of the branching portion 75 (see the dashed line arrow in the lower part of FIG. 11).

  Next, the air pump control unit 123 opens the air valve 243 and drives the air pump 241 when producing cold foamed milk. As a result, external air is taken into the air pump 241 and supplied to the internal space IS1 of the gear pump 74 via the air supply pipe 242 and the common inlet 747 of the gear pump 74.

  The gear pump motor control unit 125 further drives the gear pump motor 26. Accordingly, the gear pump 74 starts to suck milk in the milk pack 9 in the same manner as described in the section 1-3.

  Milk and air in the gear pump 74 are mixed by the rotation of both gears 742, 743, thereby producing cold, foamed milk. The produced cold foamed milk goes outside the rotating gears 742 and 743 and is discharged from the milk outlet 748.

  The cold foamed milk discharged from the milk outlet 748 is supplied to the inlet 751 of the branch portion 75, and then discharged from the first outlet 752 through the internal space IS 3, from the upper end of the cold milk nozzle 77. It flows into the internal space IS4. As described above, the tempering device 78 is provided in the internal space IS4. The conditioner 78 homogenizes the foamed milk foam that has flowed in, and is discharged toward the container 10 from the lower end of the cold milk nozzle 77.

<1-6. Milk Former Operation (when creating hot foamed milk)>
When a specific button in the button group 4 is operated and the operated button is a beverage using hot foamed milk, the control unit 12 controls each part of the above configuration as follows. .

  First, the valve motor control unit 126 controls the valve motor 27 to rotate and stop the valve 76 so that the shortest portion of the inter-ring distance d is directed upward. Thereby, in the internal space IS3 of the branching portion 75, a flow path (see an arrow of an alternate long and short dash line in FIG. 11) from the inlet 751 to the second outlet 753 is formed.

  Further, as described in the column 1-3, steam is supplied to the hot milk nozzle 710 via the steam pipe 224.

  Further, as described in the column 1-5, the gear pump 74 generates cold foamed milk and discharges it from the milk outlet 748.

  The cold foamed milk discharged from the milk outlet 748 flows into the inlet 751 of the branch 75 and is discharged from the second outlet 753, and then to the hot milk nozzle 710 via the milk flow path 79. Inflow. As described above, steam is supplied from the steam pipe 224 to the hot milk nozzle 710. Inside the hot milk nozzle 710, the foamed milk is heated with steam, thereby producing hot foamed milk. The generated hot foamed milk is discharged from the hot milk nozzle 710 toward the container 10.

<1-7. Operation during washing of milk former>
Next, the operation | movement at the time of wash | cleaning the milk former 73 in the drink manufacturing apparatus 1 is demonstrated. The cleaning of the milk former 73 is performed, for example, during maintenance of the beverage manufacturing apparatus 1. Therefore, the cleaning button 41 that becomes an opportunity when the cleaning operation is performed manually is not one of the button groups 4 shown in FIG. It is desirable that the button be provided in a place that cannot be touched except by an employee of the store where the manufacturing apparatus 1 is installed. Note that when the cleaning operation is automatically performed at predetermined intervals, for example, the cleaning button 41 may not be provided.

  In the embodiment of the present disclosure, the cleaning of the milk former 73 means that the milk flow path in the milk former 73 is cleaned. The milk flow path means a flow path from the upstream end of the milk supply pipe 231 inserted into the milk pack 9 to the milk inlet 746 of the gear pump 74 (that is, the milk supply pipe 231), It includes both the flow path from the internal space IS2 to the cold milk nozzle 77 and / or the hot milk nozzle 710 via the milk outlet 748 of the gear pump 74 and the branch 75.

  In the following description, for convenience of explanation, a second flow path (that is, the milk supply pipe 231) from the upstream end of the milk supply pipe 231 inserted into the milk pack 9 to the milk inlet 746 of the gear pump 74 is provided. The flow path from the internal space IS2 of the gear pump 74 to the cold milk nozzle 77 and / or the hot milk nozzle 710 via the milk outlet 748 and the branching portion 75 of the gear pump 74 is referred to as a first flow path. Called.

  At the time of cleaning the milk former 73, the control unit 12 controls each part of the above configuration as follows. The cleaning pump control unit 124 supplies, for example, a predetermined amount of cleaning water (hot water) from the hot water tank 211 to the gear pump 74 through the cleaning water supply pipe 252, the T-shaped branching unit 253, and the common pipe 254 from the common inlet 747. Then, the cleaning pump 251 is driven. Here, the amount of cleaning water supplied by the cleaning pump 251 is appropriately set depending on the location where cleaning is to be performed. The cleaning pump control unit 124 supplies a necessary amount of cleaning water to the gear pump 74 by controlling the rotation speed, driving time, and the like of the cleaning pump 251. For example, the amount of cleaning water to be supplied may be measured by a flow meter (not shown) provided between the cleaning pump 251 and the T-shaped branch 253.

  FIG. 14 is a diagram for explaining the flow of cleaning water (hot water) during the cleaning operation. As described above, the cleaning water supplied into the gear pump 74 cleans either the second flow path or the first flow path depending on the rotation direction of the gear pump 74.

<1-7-1. First channel cleaning operation>
Hereinafter, the cleaning operation will be specifically described. First, the first flow path from the space near the milk inlet 746 in the gear pump 74 to the cold milk nozzle 77 and / or the hot milk nozzle 710 via the milk outlet 748 and the branch 75 of the gear pump 74. A case where cleaning is performed will be described.

  When cleaning the first flow path, the cleaning pump control unit 124 drives the cleaning pump 251 to supply hot water (cleaning water) from the hot water tank 211 to the gear pump 74.

  The gear pump motor control unit 125 drives the gear pump motor 26 to cause the gear pump 74 to rotate forward at a predetermined rotational speed. The forward rotation means that the large diameter gear 742 is rotated in the direction of the arrow a shown in FIG. In this case, the cleaning water supplied from the hot water tank 211 to the gear pump 74 through the common inlet 747 by the rotation of the gear pump 74 passes through the gear pump 74 and is transferred from the milk outlet 748 to the branching section 75 to be cold milk. It is discharged from the beverage nozzle 77 and / or the hot milk nozzle 710 to the outside of the beverage production apparatus 1. Cold milk nozzle 77 The washing water (rinse liquid) discharged to the outside of the beverage production apparatus 1 from the hot milk nozzle 710 is, for example, by the administrator of the beverage production apparatus 1 for the cold milk nozzle 77 and / or hot milk. It is stored in a container or the like prepared on the drip tray 8 immediately below the nozzle 710.

  Note that either the supply of hot water to the gear pump 74 by the cleaning pump control unit 124 or the rotation of the gear pump 74 by the gear pump motor control unit 125 may be performed first or may be started simultaneously. .

  Here, the gear pump motor control unit 125 does not suck the milk of the milk pack 9 with the rotational speed of the gear pump 74, and the water for washing in the gear pump 74 passes from the milk inlet 746 through the milk supply pipe 231 to the milk pack. The predetermined rotational speed is set so as not to flow out to the 9 side. Specifically, the gear pump motor control unit 125 determines the amount of cleaning water supplied from the cleaning pump 251 to the gear pump 74, the amount of cleaning water supplied to the gear pump 74 by the forward rotation of the gear pump 74, and the gear pump 74. The rotational speed of the gear pump 74 is controlled so that the amount of cleaning water discharged from the gear pump 74 by the forward rotation of the gear pump becomes substantially the same. Thereby, it is possible to prevent a situation in which milk is mixed with the cleaning water during the cleaning of the first flow path, or the cleaning water flows back through the milk supply pipe 231. For this reason, since it is not necessary to remove the milk pack 9 from the milk cooler 6 during the washing | cleaning of a 1st flow path, the effort of washing | cleaning is reduced.

  Thus, when the gear pump 74 is rotated forward, the cleaning water can perform cleaning (rinsing) of the first flow path.

  The washing water transferred from the milk outlet 748 of the gear pump 74 into the branch 75 is one of the cold milk nozzle 77 and the hot milk nozzle 710 selected by the valve motor controller 126. Spill from. Spill from. Alternatively, the cleaning water may flow out from both nozzles simultaneously. When the washing water flows out from one or both nozzles, the cold milk nozzle 77 and / or the hot milk nozzle 710 are washed.

<1-7-2. Second channel cleaning operation>
On the other hand, when the second flow path (that is, the milk supply pipe 231) from the upstream end of the milk supply pipe 231 inserted into the milk pack 9 to the milk inlet 746 of the gear pump 74 is cleaned, the first flow path is cleaned. Similar to the operation, the cleaning pump control unit 124 drives the cleaning pump 251 to supply hot water (cleaning water) from the hot water tank 211 to the gear pump 74.

  The gear pump motor control unit 125 drives the gear pump motor 26 to rotate the gear pump 74 in the reverse direction. Then, the cleaning water flowing into the case 741 from the common inlet 747 flows backward from the milk inlet 746 to the milk pack 9 side.

  Note that either the supply of hot water to the gear pump 74 by the cleaning pump control unit 124 or the rotation of the gear pump 74 by the gear pump motor control unit 125 may be performed first or may be started simultaneously. .

  When the gear pump 74 is thus rotated in reverse, the washing water can wash (rinse) the vicinity of the milk inlet 746 of the gear pump 74 and the milk supply pipe 231 (second flow path).

  When cleaning the second flow path, for example, the administrator of the beverage production apparatus 1 takes out the upstream end of the milk supply pipe 231 from the milk pack 9 so that the cleaning water does not flow into the milk pack 9. The extracted upstream end is inserted into the cleaning container 11. The cleaning container 11 is a container for storing cleaning water, and is, for example, a simple empty container.

  When the gear pump motor controller 125 reversely rotates the gear pump 74 with the upstream end of the milk supply pipe 231 inserted into the cleaning container 11, the gear pump 74 uses the cleaning water in the gear pump 74 as the milk inlet. 746 is discharged from the milk supply pipe 231 and stored in the cleaning container 11.

<1-7-3. Cleaning operation using detergent solution>
Next, the cleaning operation of the first flow path and the second flow path of the milk former 73 using the detergent liquid will be described. When cleaning using a detergent solution, the administrator of the beverage production apparatus 1 puts a cleaning tablet or the like into an empty cleaning container 11, so that the cleaning tablet is stored in the cleaning water stored in the cleaning container 11. Dissolves to produce a detergent solution. The cleaning tablet is an example of a cleaning agent.

  When the washing operation is started after the upstream end of the milk supply pipe 231 is inserted into the empty washing container 11 containing the washing tablet, the washing operation is performed in the same manner as described in the section 1-7-2 above. When the pump 251 is driven, the washing water supplied from the hot water tank 211 to the gear pump 74 flows from the milk inlet 746 of the gear pump 74 to the washing container 11 through the milk supply pipe 231 by the reverse rotation of the gear pump 74. A predetermined amount of cleaning water is stored in the cleaning container 11.

  When the control unit 12 determines that a predetermined amount of cleaning water is stored in the cleaning container 11, the gear pump motor control unit 125 stops the reverse rotation of the gear pump 74. Thereby, the cleaning water flowing out from the gear pump 74 is stopped. Since a predetermined amount of cleaning water is stored in the cleaning container 11, the cleaning tablet dissolves and a predetermined concentration of detergent liquid is generated. For example, the control unit 12 may determine that a predetermined amount of cleaning water has been stored in the cleaning container 11 when a predetermined time has elapsed since the supply of cleaning water was started. Alternatively, the control unit 12 detects that a predetermined amount of cleaning water has been stored in the cleaning container 11 using, for example, a flow meter (not shown) provided in a part of the milk supply pipe 231. Also good.

  When a predetermined amount and concentration of detergent liquid is generated in the cleaning container 11, the cleaning pump control unit 124 stops the cleaning pump 251, and the gear pump motor control unit 125 rotates the gear pump 74 forward. Then, the gear pump 74 transfers the detergent solution in the cleaning container 11 from the upper end of the milk supply pipe 231 inserted into the cleaning container 11 into the gear pump 74 via the milk supply pipe 231 and the milk inlet 746. Start sucking. As in the case of the forward rotation of the gear pump 74 described above, the detergent liquid sucked up by the gear pump 74 passes through the gear pump 74 and flows from the milk outlet 748 to the branch portion 75, and is used for the cold milk nozzle 77 or hot milk. It is discharged from any of the nozzles 710 to the outside of the beverage production apparatus 1.

  By such an operation, the second flow path and the first flow path including the inside of the gear pump 74 are washed with the detergent liquid. Further, when the control unit 12 determines that the cleaning with the detergent liquid has been sufficiently performed, the cleaning pump control unit 124 operates the cleaning pump 251 again. Then, cleaning water is supplied from the hot water tank 211 to the gear pump 74 by the cleaning pump 251. The gear pump motor control unit 125 controls the rotation speed of the gear pump 74 so that the gear pump 74 does not suck up the detergent liquid in the cleaning container 11.

  The control unit 12 determines that the predetermined time has elapsed when the amount of the detergent liquid flowing out from the cleaning container 11 to the gear pump 74 becomes equal to or greater than a predetermined amount or when the detergent liquid starts to flow out from the cleaning container 11. In this case, it may be determined that the cleaning with the detergent liquid has been sufficiently performed.

  Thereafter, when the gear pump motor control unit 125 further continues the forward rotation of the gear pump 74, the washing water in the gear pump 74 passes through the first flow path to produce a beverage from the cold milk nozzle 77 and / or the hot milk nozzle 710. It flows out of the apparatus 1. Thereby, the detergent liquid remaining in the gear pump 74 and the first flow path can be washed away with the cleaning water.

  When the cleaning pump control unit 124 and the gear pump motor control unit 125 reverse the gear pump 74 while the cleaning pump 251 is operated after cleaning with the detergent liquid, the cleaning water in the gear pump 74 is supplied to the milk inlet 746. Then flows out through the milk supply pipe 231 to the cleaning container 11 side. Thereby, the detergent liquid remaining in the second flow path can be washed away with the cleaning water. The waste liquid that has washed away the second flow path is stored in the cleaning container 11.

  Further, after washing away the detergent solution as described above, the cleaning pump control unit 124 and the gear pump motor control unit 125 stop the cleaning pump 251 and operate the air pump 241. Accordingly, the cleaning water (waste liquid) remaining in the common pipe 254 between the T-shaped branching portion 253 and the gear pump 74 can be discharged into the gear pump 74 by the air supplied from the air pump 241. The waste liquid in the gear pump 74 is discharged from the first flow path or the second flow path as described above.

  In the first channel cleaning operation and the second channel cleaning operation described above, the administrator of the beverage production apparatus 1 inserts the upstream end of the milk supply pipe 231 inserted in the milk pack 9 into the cleaning container 11. This operation is automatically performed only by operating the washing button 41 again. In addition, the administrator of the beverage production apparatus 1 puts the cleaning tablet in the cleaning container 11 and performs a predetermined operation different from the case where only the cleaning operation of the first flow path and the second flow path is performed. Is performed, the first channel cleaning operation and the cleaning operation using the detergent liquid are performed, and then the first channel cleaning operation and the second channel cleaning operation are performed again. Done automatically. That is, the administrator of the beverage production apparatus 1 simply inserts the milk supply pipe 231 into the washing container 11 at the upstream end and operates the washing button 41, and the liquid former washing of the milk former 73 in the beverage production apparatus 1 is performed. Automatically done until completion. For this reason, the burden on the administrator of the beverage production apparatus 1 can be reduced. In addition, even when the washing operation of the beverage production apparatus 1 is automatically performed, for example, at predetermined intervals, the administrator simply inserts the milk former 73 into the washing container 11 at the upstream end of the milk supply pipe 231. Since the liquid cleaning is automatically performed until completion, the burden on the administrator can be reduced.

<1-8. Action / Effect>
As described above, the beverage manufacturing apparatus 1 according to the first embodiment of the present disclosure mixes milk and air supplied from a milk container (milk pack 9) via the milk supply pipe 231 to form. A milk former 73 having a gear pump 74 for generating milk, an air pump 241 for supplying air to the gear pump 74, a cleaning pump 251 for supplying cleaning water to the gear pump 74, and an air supply pipe through which air supplied by the air pump 241 flows 24, a branch member (T-shaped branch portion) connected to a cleaning water supply pipe 252 through which cleaning water supplied from the cleaning pump 251 flows, and a common pipe 254 through which at least one of air supplied to the gear pump 74 and cleaning water flows. 253).

  As described above, the beverage production apparatus 1 according to the present disclosure includes the air supply pipe 242 connected to the air pump 241 that supplies air to the gear pump 74 and the cleaning water connected to the cleaning pump 251 that supplies cleaning water to the gear pump 74. The common pipe 254 shares the supply of air and cleaning water to the gear pump 74. With such a configuration, the cleaning water supply pipe 252 can be supplied to the gear pump 74 without joining the milk supply pipe 231. Further, there is a possibility that the milk flows backward to the common pipe 254 side and mixes with the cleaning water, but the cleaning water mixed with this milk is pushed away by the air by the air pump 241 so as not to accumulate on the common pipe 254 side. . For this reason, the sanitary state of the T-shaped branch part 253 can be maintained.

  Moreover, in the beverage manufacturing apparatus 1 of the present disclosure, the T-shaped branch portion 253 has a first tube (tube 2532) having one end connected to the downstream end of the air supply pipe 242 and one end at the downstream end of the cleaning water supply pipe. The connected second tube (tube 2533), the third tube (tube 2534) having one end connected to the upstream end of the common pipe 254, and the three-way tube (the other end of tubes 2532 to 2534 connected to the tip) T-tube 2531).

  With such a configuration, the T-shaped branch portion 253 can be easily disassembled by pulling out the tube 2534 connected to the T-shaped tube 2531. Thereby, for example, when the beverage production apparatus 1 is disassembled and washed, it is possible to reduce the labor and time required to remove and attach the gear pump 74 in particular.

  Further, the control unit 12 reaches from the space near the milk inlet in the gear pump 74 to the cold milk nozzle 77 and / or the hot milk nozzle 710 via the milk outlet 748 and the branching portion 75 of the gear pump 74. When the first flow path, which is the milk flow path, is cleaned, the cleaning pump 251 is driven to supply cleaning water to the gear pump 74, and the gear pump 74 is rotated in the first direction (forward rotation). The washing water is caused to flow through the first flow path, and the milk flow path from the upstream end of the milk supply pipe 231 inserted into the milk container (milk pack 9) to the milk inlet 746 of the gear pump 74 (that is, milk When cleaning the second flow path, which is the supply pipe 231), the cleaning pump 251 is driven to supply cleaning water to the gear pump 74. Moni, rotate in a second direction which is the direction opposite to the gear pump 74 to the first direction by (reverse rotation) is flowing washing water in the second flow path.

  With such a configuration, the liquid passage cleaning of the milk flow path of the beverage production apparatus 1 can be easily performed.

  While various embodiments have been described with reference to the drawings, the present disclosure is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the scope of the disclosure. Understood. In addition, the constituent elements in the above embodiments may be arbitrarily combined without departing from the spirit of the disclosure.

  The present disclosure is useful for a beverage production apparatus having a milk former.

DESCRIPTION OF SYMBOLS 1 Beverage production apparatus 2 Main body 3 Door 4 Button group 41 Washing button 5 Canister 6 Milk cooler 7 Nozzle unit 8 Drip tray 9 Milk pack 10 Container 11 Washing container 12 Control part 121 Button reception part 122 Hot water pump control part 123 Air pump control Part 124 washing pump control part 125 gear pump motor control part 126 valve motor control part 21 coffee extraction part 211 hot water tank 212 hot water pump 213 filter 214 hot water supply valve 215 coffee side hot water supply pipe 216 lifting device 217 cylinder unit 218 cap 219 cylinder 2210 Piston 2211 Extraction hole 2212 Coffee liquid piping 2213 Mill 22 Steam supply unit 221 Electromagnetic pump 222 Milk side hot water supply piping 223 Boiler 224 Steam piping 225 Three-way valve 23 Milk supply part 231 Milk supply pipe 24 Air supply part 241 Air pump 242 Air supply pipe 243 Air valve 25 Washing water supply part 251 Washing pump 252 Washing water supply pipe 253 T-shaped branch part 2531 T-shaped pipes 2532, 2533, 2534 Tube 254 Common piping 26 Gear pump motor 261 Rotating shaft 262 Motor side magnet 27 Valve motor 271 Rotating shaft 272 Motor side gear 71 Cover 72 Nozzle for coffee 73 Milk former 74 Gear pump 741 Case 742 Large diameter gear 743 Small diameter gear 744 Lid 745 Pump side magnet 746 Milk inlet 747 Common inlet 748 Milk outlet 75 Branch 751 Inlet 752 First outlet 753 Second outlet 754 Open 76 Valve 761 Rotating body 762 First ring groove 763 First Ring groove 764 a 1O ring 765 first 2O ring 766 valve side gear 77 regulating the cold milk nozzle 78 quality 79 milk flow path 710 hot milk nozzle

Claims (3)

A milk former having a gear pump that mixes milk and air supplied from a milk container via a milk supply pipe to generate foamed milk;
An air pump for supplying air to the gear pump;
A cleaning pump for supplying cleaning water to the gear pump;
The air supply pipe through which the air supplied by the air pump flows, the cleaning water supply pipe through which the cleaning water supplied by the cleaning pump flows, and the air supplied to the gear pump or the cleaning water flows through the common. A branch member to which piping is connected;
A beverage production apparatus having The branch member is
A first tube having one end connected to the downstream end of the air supply pipe;
A second tube having one end connected to the downstream end of the cleaning water supply pipe;
A third tube having one end connected to the upstream end of the common pipe;
A three-way pipe in which the other end of the first to third tubes is connected to the tip;
The beverage production apparatus according to claim 1, comprising: A control unit;
In the case of cleaning the first flow path, which is the milk flow path, from the milk inlet of the gear pump to the milk nozzle that discharges the milk to the outside through the gear pump, The washing pump is driven to supply the washing water to the gear pump, and the gear pump is rotated in the first direction so that the flow of the milk from the upstream end of the milk supply pipe to the milk inlet of the gear pump. When cleaning the second flow path, which is a path, the cleaning pump is driven to supply the cleaning water to the gear pump, and the gear pump is in a second direction opposite to the first direction. Rotate in the direction of
The beverage production apparatus according to claim 1 or 2.

Images